Format code

One binary setup
Fix SSDT entry
2020-08-01 04:47:59 +07:00 · 2020-08-01 04:47:38 +07:00 · 2020-07-24 21:44:29 +07:00 · 2020-07-21 17:07:52 +07:00 · 2020-07-07 23:43:29 +07:00 · 2020-07-03 02:08:27 +07:00
32 changed files with 3919 additions and 2417 deletions
--- a/.cargo/config
+++ b/.cargo/config
@ -1,2 +1,5 @@
 [target.x86_64-pc-windows-msvc]
+# CRT static to make run on machine without VC++
+# https://github.com/rust-lang/rust/pull/66801#issuecomment-558947376
+# >>  "-Clink-args=/subsystem:console,5.02"
 rustflags = ["-Ctarget-feature=+crt-static"]
--- a/Cargo.lock
+++ b/Cargo.lock
@ -1,5 +1,13 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "ansi_term"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.26"
@ -16,6 +24,26 @@ dependencies = [
 "xdg 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "arrayref"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "arrayvec"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "atty"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "hermit-abi 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.0.0"
@ -31,11 +59,61 @@ name = "bitflags"
 version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "blake2b_simd"
+version = "0.5.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "arrayref 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "constant_time_eq 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "block-buffer"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "block-padding 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "block-padding"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byte-tools 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bstr"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-automata 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "byte-tools"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "byteorder"
+version = "1.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "bytes"
 version = "0.5.4"
@ -69,6 +147,25 @@ dependencies = [
 "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "clap"
+version = "2.33.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vec_map 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "constant_time_eq"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "core-foundation"
 version = "0.6.4"
@ -83,11 +180,83 @@ name = "core-foundation-sys"
 version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "crossbeam-utils"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "csv"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bstr 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "csv-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ryu 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "csv-core"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "digest"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "dirs"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_users 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "dirs-next"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dirs-sys-next 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "dirs-sys-next"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_users 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "dtoa"
 version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "encode_unicode"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.22"
@ -96,6 +265,11 @@ dependencies = [
 "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "fake-simd"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "fallible-iterator"
 version = "0.1.6"
@ -174,6 +348,14 @@ dependencies = [
 "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "generic-array"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.1.14"
@ -349,13 +531,26 @@ version = "0.1.0"
 dependencies = [
 "app_dirs 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "chrono 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.33.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parse_int 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "pdb 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "prettytable-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "reqwest 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rust-embed 5.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustyline 6.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde_json 1.0.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "vergen 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "widestring 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "maplit"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "matches"
 version = "0.1.8"
@ -436,6 +631,18 @@ dependencies = [
 "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "nix"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "nom"
 version = "4.2.3"
@ -480,6 +687,11 @@ dependencies = [
 "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "opaque-debug"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "openssl"
 version = "0.10.28"
@ -510,6 +722,14 @@ dependencies = [
 "vcpkg 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "parse_int"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "pdb"
 version = "0.5.0"
@ -525,6 +745,45 @@ name = "percent-encoding"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "pest"
+version = "2.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "ucd-trie 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pest_derive"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_generator 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pest_generator"
+version = "2.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest_meta 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pest_meta"
+version = "2.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "maplit 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha-1 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "pin-project"
 version = "0.4.8"
@ -563,6 +822,19 @@ name = "ppv-lite86"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "prettytable-rs"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "csv 1.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "encode_unicode 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "term 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "0.4.30"
@ -637,6 +909,24 @@ name = "redox_syscall"
 version = "0.1.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "redox_users"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rust-argon2 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "remove_dir_all"
 version = "0.5.2"
@ -679,6 +969,46 @@ dependencies = [
 "winreg 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "rust-argon2"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "base64 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "blake2b_simd 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "constant_time_eq 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rust-embed"
+version = "5.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rust-embed-impl 5.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rust-embed-utils 5.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rust-embed-impl"
+version = "5.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rust-embed-utils 5.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rust-embed-utils"
+version = "5.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rustc_version"
 version = "0.2.3"
@ -687,11 +1017,37 @@ dependencies = [
 "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "rustyline"
+version = "6.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dirs-next 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nix 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "utf8parse 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "schannel"
 version = "0.1.17"
@ -701,6 +1057,11 @@ dependencies = [
 "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "scopeguard"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "scroll"
 version = "0.9.2"
@ -778,6 +1139,17 @@ dependencies = [
 "url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "sha-1"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "block-buffer 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "digest 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fake-simd 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "opaque-debug 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "shell32-sys"
 version = "0.1.2"
@ -802,6 +1174,11 @@ name = "sourcefile"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "strsim"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "syn"
 version = "0.15.44"
@ -835,6 +1212,24 @@ dependencies = [
 "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "term"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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--- a/Cargo.toml
+++ b/Cargo.toml
@ -18,3 +18,15 @@ widestring = "0.4.0"
 winapi = { version = "0.3.8", features = ["libloaderapi", "processthreadsapi", "winbase", "securitybaseapi", "handleapi", "winnt", "winreg", "fileapi", "ioapiset", "winioctl", "errhandlingapi", "sysinfoapi"] }
 reqwest = { version = "0.10.1", features = ["blocking"] }
 serde_json = "1.0.55"
+parse_int = "0.4.0"
+# repl dependencies
+rustyline = "6.2.0"
+pest = "2.1.3"
+pest_derive = "2.1.0"
+# others
+prettytable-rs = "^0.8"
+rust-embed="5.6.0"
+clap="2.33.1"
+
+[build-dependencies]
+vergen="3.1.0"
--- a/README.md
+++ b/README.md
@ -1,6 +1,16 @@
 # LPUS (A live pool-tag scanning solution)

-This is the frontend to the live pool tag scanning solution, the backend is a driver (which is now closed source).
+This is the frontend to the live pool tag scanning solution, the backend is a
+driver (which is now closed source).
+
+Works on Windows 7 and above (Vista not tested, but 7 ok and 10 ok), and on x64
+systems only. (I hardcoded the address as u64 so only 64 systems should run this).
+
+> The binary is runable, without crashing. But I still need to add some
+manual instructions on referencing the structs and offset on some places.
+> Windows 10, versions 2018, 2019 and 2020 is tested and works.
+
+Windows XP is not supported: Windows XP Win32Api is missing here and there.

 ## How this works

@ -21,7 +31,7 @@ use lpus::{
 fn main() -> Result<(), Box<dyn Error>> {
    let mut driver = DriverState::new();
    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
-    driver.scan_pool(b"Tag ", |pool_addr, header, data_addr| {
+    driver.scan_pool(b"Tag ", "_STRUCT_NAME", |pool_addr, header, data_addr| {
    })?;
    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
 }
@ -33,3 +43,67 @@ Parsing the struct data is up to you.
 You can use `driver.deref_addr(addr, &value)` to dereference an address in kernel space
 and `driver.pdb_store.get_offset_r("offset")?` to get an offset from PDB file.

+We also have a set of functions for scanning a specific tag/object.
+
+- `pub fn scan_eprocess(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- `pub fn scan_file(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- `pub fn scan_ethread(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- `pub fn scan_mutant(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- `pub fn scan_driver(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- `pub fn scan_kernel_module(driver: &DriverState) -> BoxResult<Vec<Value>>`
+
+And a list traversing the kernel object:
+
+- `pub fn traverse_loadedmodulelist(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- `pub fn traverse_activehead(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- missing symbols `pub fn traverse_afdendpoint(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- `pub fn traverse_kiprocesslist(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- `pub fn traverse_handletable(driver: &DriverState) -> BoxResult<Vec<Value>>`
+- `pub fn traverse_unloadeddrivers(driver: &DriverState) -> BoxResult<Vec<Value>>`
+
+## Things to note
+
+Right now, we only have one symbol file of ntoskrnl.exe. While we may need more
+symbols, kernel32.sys, win32k.sys, tcpis.sys...  This will be a future update
+where symbols are combined into one big `HashMap` but still retain the module.  I
+haven't tested the debug symbols of others binary, I wonder if the PDB file even
+exists.
+
+The pdb file is not restricted in ntoskrnl.exe, I might need to split to a
+smaller module or such.
+
+Also the symbols list is parsed directly from the PDB file, but some structs
+(like the callback routine members or network structs) are missing. Right now a
+simple hardcoded to add in a struct member is used, but it would break if the
+OS running have a different layout. 
+
+The HashMap of symbols/struct is now using string and u32 to store member
+offset and types, this should be changed into something that would be type-safe
+and more functional.
+
+I also follow a few Volatility implementation on Rootkit, The art of Memory
+forensics Chapter 13.  Scanning in Windows 10 yields promising result, though I
+haven't tested on any malware to see if we can have the "same" result.
+
+At the pace of development, I seperate the binary to functionalities for
+testing, I would add a CLI and a REPL.
+
+One last thing, the backend doesn't have any check on address referencing, so
+one may get a blue screen, eventhough I tried to avoid it, I'm not 100% sure it
+would not crash the system.
+
+## Future works
+
+- [ ] An interactive repl (1)
+- [ ] More kernel modules symbols (2)
+- [ ] Implementation of more technique (reference Volatility here)
+- [ ] Quick and easy way to add manual struct, symbols (3)
+
+(1) This is quite hard to work out, because we have to make the *types* works.
+The currently chosen repl is based on Lisp, because lisp is cool.  If the repl
+is online, we can combine everything into one binary.
+
+(2) We may need to download it all and combine to one `HashMap`, with their
+types as a specific struct. (Try to avoid string).
+
+(3) Have no idea on this.
--- a/build.rs
+++ b/build.rs
@ -0,0 +1,8 @@
+extern crate vergen;
+
+use vergen::{generate_cargo_keys, ConstantsFlags};
+
+fn main() {
+    let flags = ConstantsFlags::all();
+    generate_cargo_keys(flags).expect("Unable to generate the cargo keys!");
+}
--- a/other/to_epoch.py
+++ b/other/to_epoch.py
@ -0,0 +1,7 @@
+
+windows_epoch_diff = 11644473600000 * 10000
+filetime = 132380977838542980
+
+process_time_epoch = (filetime - windows_epoch_diff) // 10000
+print(process_time_epoch)
+
--- a/src/address.rs
+++ b/src/address.rs
@ -1,7 +1,7 @@
-use std::rc::Rc;
-use std::ops::{Add, AddAssign, Sub, SubAssign};
 use std::cmp::Ordering;
 use std::fmt;
+use std::ops::{Add, AddAssign, Sub, SubAssign};
+use std::rc::Rc;

 // pub struct Object {
 //     name: String,
@ -43,41 +43,40 @@ impl Address {
        }
    }
    fn deref<F>(&self, resolver: &F) -> Address
-        where F: Fn(u64) -> u64 {
+    where
+        F: Fn(u64) -> u64,
+    {
        match &self.pointer {
            Some(p) => {
                let addr = p.deref(resolver);
                // println!("deref: {} -> {}; resolve: 0x{:x}", self, addr, addr.base + addr.offset);
-                let base =
-                    if addr.base != 0 {
-                        resolver(addr.base + addr.offset)
-                    } else {
-                        0
-                    };
+                let base = if addr.base != 0 {
+                    resolver(addr.base + addr.offset)
+                } else {
+                    0
+                };
                Address {
                    base: base,
                    pointer: None,
                    offset: self.offset,
                }
-            },
-            None => {
-                Address {
-                    base: self.base,
-                    pointer: None,
-                    offset: self.offset,
-                }
            }
+            None => Address {
+                base: self.base,
+                pointer: None,
+                offset: self.offset,
+            },
        }
    }
    pub fn get<F>(&self, resolver: &F) -> u64
-        where F: Fn(u64) -> u64 {
+    where
+        F: Fn(u64) -> u64,
+    {
        if self.pointer.is_some() {
            self.deref(resolver).get(resolver)
-        }
-        else if self.base == 0 {
+        } else if self.base == 0 {
            0
-        }
-        else {
+        } else {
            self.base + self.offset
        }
    }
@ -136,9 +135,10 @@ impl SubAssign<u64> for Address {

 impl PartialEq for Address {
    fn eq(&self, other: &Self) -> bool {
-        self.pointer.is_none() && other.pointer.is_none()
-        && self.base == other.base
-        && self.offset == other.offset
+        self.pointer.is_none()
+            && other.pointer.is_none()
+            && self.base == other.base
+            && self.offset == other.offset
    }
 }

@ -146,8 +146,7 @@ impl PartialOrd for Address {
    fn partial_cmp(&self, other: &Address) -> Option<Ordering> {
        if self.pointer.is_some() || other.pointer.is_some() {
            None
-        }
-        else {
+        } else {
            let this = self.base + self.offset;
            let that = other.base + other.offset;
            Some(this.cmp(&that))
@ -159,9 +158,10 @@ impl fmt::Display for Address {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        if let Some(p) = &self.pointer {
            write!(f, "*({}) + 0x{:x}", *p, self.offset)
-        }
-        else {
+        } else if self.offset != 0 {
            write!(f, "0x{:x} + 0x{:x}", self.base, self.offset)
+        } else {
+            write!(f, "0x{:x}", self.base)
        }
    }
 }
@ -171,7 +171,7 @@ impl Clone for Address {
        Address {
            base: self.base,
            pointer: self.pointer.clone(),
-            offset: self.offset
+            offset: self.offset,
        }
    }
 }
--- a/src/bin/driver_irp.rs
+++ b/src/bin/driver_irp.rs
@ -0,0 +1,82 @@
+use std::error::Error;
+
+use parse_int::parse;
+use rustyline::error::ReadlineError;
+use rustyline::Editor;
+
+use lpus::{driver_state::DriverState, get_irp_name, scan_driver, scan_kernel_module};
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
+    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
+
+    let drivers = scan_driver(&driver).unwrap_or(Vec::new());
+    let kmods = scan_kernel_module(&driver).unwrap_or(Vec::new());
+
+    for d in drivers.iter() {
+        println!("{} {}", d["address"], d["device"]);
+    }
+
+    let mut rl = Editor::<()>::new();
+    loop {
+        let readline = rl.readline("irp> ");
+        match readline {
+            Ok(line) => {
+                rl.add_history_entry(line.as_str());
+                for d in drivers.iter() {
+                    if d["address"].as_str().unwrap_or("") == line {
+                        println!("{:#}", d);
+                        for (idx, addr_) in d["major_function"]
+                            .as_array()
+                            .unwrap_or(&Vec::new())
+                            .iter()
+                            .enumerate()
+                        {
+                            let addr: u64 = addr_.as_str().and_then(|x| parse(x).ok()).unwrap_or(0);
+                            let mut owner = "(??)";
+                            println!("{} {}", addr, get_irp_name(idx));
+                            for kmod in kmods.iter() {
+                                let base: u64 = kmod["dllbase"]
+                                    .as_str()
+                                    .and_then(|x| parse(x).ok())
+                                    .unwrap_or(0);
+                                let size: u64 = kmod["size"]
+                                    .as_str()
+                                    .and_then(|x| parse(x).ok())
+                                    .unwrap_or(0);
+                                if addr > base && addr < base + size {
+                                    owner = kmod["BaseName"].as_str().unwrap_or("(??)");
+                                    break;
+                                }
+                            }
+                            println!("\towned by {}", owner);
+                        }
+                        break;
+                    }
+                }
+            }
+            Err(ReadlineError::Interrupted) => {
+                println!("CTRL-C");
+                break;
+            }
+            Err(ReadlineError::Eof) => {
+                println!("CTRL-D");
+                break;
+            }
+            Err(err) => {
+                println!("Error: {:?}", err);
+                break;
+            }
+        }
+    }
+
+    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
+    Ok(())
+}
--- a/src/bin/driver_scan.rs
+++ b/src/bin/driver_scan.rs
@ -1,12 +1,16 @@
 use std::error::Error;

-use lpus::{
-    driver_state::{DriverState},
-    scan_driver
-};
+use lpus::{driver_state::DriverState, scan_driver};

 fn main() -> Result<(), Box<dyn Error>> {
    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());

    let result = scan_driver(&driver).unwrap_or(Vec::new());
@ -18,4 +22,3 @@ fn main() -> Result<(), Box<dyn Error>> {
    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
    Ok(())
 }
-
--- a/src/bin/eprocess_scan.rs
+++ b/src/bin/eprocess_scan.rs
@ -1,21 +1,104 @@
-use std::error::Error;
-
-use lpus::{
-    driver_state::{DriverState},
-    scan_eprocess
-};
-
-fn main() -> Result<(), Box<dyn Error>> {
-    let mut driver = DriverState::new();
-    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
-
-    let result = scan_eprocess(&driver).unwrap_or(Vec::new());
-
-    for r in result.iter() {
-        println!("{:#}", r.to_string());
-    }
-
-    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
-    Ok(())
-}
-
+use serde_json::Value;
+use std::collections::HashSet;
+use std::error::Error;
+
+#[macro_use]
+extern crate prettytable;
+use prettytable::Table;
+
+use lpus::{
+    driver_state::DriverState, scan_eprocess, scan_ethread, traverse_activehead,
+    traverse_handletable, traverse_kiprocesslist,
+};
+
+fn process_in_list(addr: &str, list: &Vec<Value>) -> bool {
+    for r in list.iter() {
+        if r["address"].as_str().unwrap() == addr {
+            return true;
+        }
+    }
+    false
+}
+
+fn get_from_list(addr: &str, list: &Vec<Value>) -> Option<Value> {
+    for r in list.iter() {
+        if r["address"].as_str().unwrap() == addr {
+            return Some(r.clone());
+        }
+    }
+    None
+}
+
+fn process_in_list_thread(addr: &str, list: &Vec<Value>) -> bool {
+    for r in list.iter() {
+        if r["eprocess"].as_str().unwrap() == addr {
+            return true;
+        }
+    }
+    false
+}
+
+// fn get_process_from_list(addr: String, list: &Vec<Value>) -> String { }
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
+    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
+
+    let process_scan = scan_eprocess(&driver).unwrap_or(Vec::new());
+    let thread_scan = scan_ethread(&driver).unwrap_or(Vec::new());
+    let activehead = traverse_activehead(&driver).unwrap_or(Vec::new());
+    let kiprocesslist = traverse_kiprocesslist(&driver).unwrap_or(Vec::new());
+    let handletable = traverse_handletable(&driver).unwrap_or(Vec::new());
+
+    let mut unique_process = HashSet::new();
+    for list in [&process_scan, &activehead, &kiprocesslist, &handletable].iter() {
+        for r in list.iter() {
+            let addr = r["address"].as_str().unwrap();
+            unique_process.insert(addr);
+        }
+    }
+
+    let mut table = Table::new();
+    table.add_row(row![
+        "Address",
+        "Name",
+        "pid",
+        "ppid",
+        "PoolTagScan",
+        "ActiveProcessHead",
+        "KiProcessListHead",
+        "HandleTableList",
+        "ThreadScan"
+    ]);
+    for p in &unique_process {
+        let addr = p.to_string();
+        let v = get_from_list(&addr, &activehead).unwrap_or_default();
+        table.add_row(row![
+            &addr,
+            v["name"].as_str().unwrap_or("(??)"),
+            v["pid"].as_i64().unwrap_or(-1),
+            v["ppid"].as_i64().unwrap_or(-1),
+            process_in_list(&addr, &process_scan),
+            process_in_list(&addr, &activehead),
+            process_in_list(&addr, &kiprocesslist),
+            process_in_list(&addr, &handletable),
+            process_in_list_thread(&addr, &thread_scan)
+        ]);
+    }
+
+    table.printstd();
+
+    // for r in process_scan.iter() {
+    //     println!("{:#}", r.to_string());
+    // }
+
+    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
+    Ok(())
+}
--- a/src/bin/eprocess_traverse.rs
+++ b/src/bin/eprocess_traverse.rs
@ -0,0 +1,36 @@
+use std::error::Error;
+
+use lpus::{
+    driver_state::DriverState, traverse_activehead, traverse_handletable, traverse_kiprocesslist,
+};
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
+    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
+
+    let activehead = traverse_activehead(&driver).unwrap_or(Vec::new());
+    let kiprocesslist = traverse_kiprocesslist(&driver).unwrap_or(Vec::new());
+    let handletable = traverse_handletable(&driver).unwrap_or(Vec::new());
+
+    for r in activehead.iter() {
+        println!("{:#}", r.to_string());
+    }
+    println!("=========================================");
+    for r in kiprocesslist.iter() {
+        println!("{:#}", r.to_string());
+    }
+    println!("=========================================");
+    for r in handletable.iter() {
+        println!("{:#}", r.to_string());
+    }
+
+    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
+    Ok(())
+}
--- a/src/bin/ethread_scan.rs
+++ b/src/bin/ethread_scan.rs
@ -1,12 +1,16 @@
 use std::error::Error;

-use lpus::{
-    driver_state::{DriverState},
-    scan_ethread, /* scan_mutant */
-};
+use lpus::{driver_state::DriverState, scan_ethread /* scan_mutant */};

 fn main() -> Result<(), Box<dyn Error>> {
    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());

    let threads = scan_ethread(&driver).unwrap_or(Vec::new());
@ -22,5 +26,3 @@ fn main() -> Result<(), Box<dyn Error>> {
    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
    Ok(())
 }
-
-
--- a/src/bin/file_object_scan.rs
+++ b/src/bin/file_object_scan.rs
@ -1,22 +1,24 @@
-use std::error::Error;
-
-use lpus::{
-    driver_state::{DriverState},
-    scan_file
-};
-
-fn main() -> Result<(), Box<dyn Error>> {
-    let mut driver = DriverState::new();
-    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
-
-    let result = scan_file(&driver).unwrap_or(Vec::new());
-
-    for r in result.iter() {
-        println!("{:#}", r.to_string());
-    }
-
-    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
-    Ok(())
-}
-
-
+use std::error::Error;
+
+use lpus::{driver_state::DriverState, scan_file};
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
+    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
+
+    let result = scan_file(&driver).unwrap_or(Vec::new());
+
+    for r in result.iter() {
+        println!("{:#}", r.to_string());
+    }
+
+    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
+    Ok(())
+}
--- a/src/bin/kernel_module_scan.rs
+++ b/src/bin/kernel_module_scan.rs
@ -0,0 +1,24 @@
+use std::error::Error;
+
+use lpus::{driver_state::DriverState, scan_kernel_module};
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
+    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
+
+    let result = scan_kernel_module(&driver).unwrap_or(Vec::new());
+
+    for r in result.iter() {
+        println!("{:#}", r.to_string());
+    }
+
+    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
+    Ok(())
+}
--- a/src/bin/kernel_module_traverse.rs
+++ b/src/bin/kernel_module_traverse.rs
@ -0,0 +1,78 @@
+use std::error::Error;
+
+use parse_int::parse;
+
+use lpus::{
+    driver_state::DriverState, ssdt_table, traverse_loadedmodulelist, traverse_unloadeddrivers,
+};
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
+    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
+
+    let loaded = traverse_loadedmodulelist(&driver).unwrap_or(Vec::new());
+    let unloaded = traverse_unloadeddrivers(&driver).unwrap_or(Vec::new());
+    let ssdt = ssdt_table(&driver)?;
+    let ntosbase = driver.get_kernel_base();
+
+    // for r in loaded.iter() {
+    //     println!("{:#}", r.to_string());
+    // }
+    println!("=============================================");
+    for r in unloaded.iter() {
+        println!("{:#}", r);
+    }
+    println!("=============================================");
+    for (idx, func) in ssdt.iter().enumerate() {
+        println!("SSDT [{}]\t0x{:x}", idx, func);
+        let owner = loaded.iter().find_map(|r| {
+            let base = r["dllbase"]
+                .as_str()
+                .and_then(|b| parse::<u64>(b).ok())
+                .unwrap_or(0);
+            let size = r["size"]
+                .as_str()
+                .and_then(|s| parse::<u64>(s).ok())
+                .unwrap_or(0);
+
+            if *func > base && *func < base + size {
+                let module = r["BaseName"].as_str().unwrap();
+                Some(module)
+            } else {
+                None
+            }
+        });
+        if owner == Some("ntoskrnl.exe") {
+            let offset = func - ntosbase.address();
+            let funcname: String = {
+                driver
+                    .pdb_store
+                    .symbols
+                    .iter()
+                    .find_map(|(name, o)| {
+                        if o.clone() == offset {
+                            Some(name.clone())
+                        } else {
+                            None
+                        }
+                    })
+                    .unwrap_or("(??)".to_string())
+            };
+            println!("\towned by nt!{}", funcname);
+        } else if let Some(owner_) = owner {
+            println!("\\thooked by {}", owner_);
+        } else {
+            println!("\tmissing owner");
+        }
+    }
+
+    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
+    Ok(())
+}
--- a/src/bin/lpus.rs
+++ b/src/bin/lpus.rs
@ -0,0 +1,143 @@
+use serde_json::json;
+use std::error::Error;
+use std::fs;
+use std::io::Write;
+
+extern crate clap;
+extern crate prettytable;
+use app_dirs::{app_dir, AppDataType};
+use clap::{App, Arg, SubCommand};
+use rust_embed::RustEmbed;
+
+#[derive(RustEmbed)]
+#[folder = "resource"]
+struct Asset;
+
+use lpus::{
+    commands::{driverscan, modscan, psxview, ssdt, unloadedmodules},
+    driver_state::DriverState,
+    APP_INFO,
+};
+
+fn extract_driver() {
+    let driver_bytes = Asset::get("lpus.sys").unwrap();
+
+    let mut driver_location =
+        app_dir(AppDataType::UserData, &APP_INFO, &format!("driver")).unwrap();
+    driver_location.push("lpus.sys");
+    println!("driver location: {:?}", driver_location);
+
+    if let Ok(mut f) = fs::File::create(driver_location) {
+        f.write_all(&driver_bytes).unwrap();
+    }
+}
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let version = format!(
+        "{}-{} commit on {}",
+        env!("VERGEN_SEMVER"),
+        env!("VERGEN_SHA_SHORT"),
+        env!("VERGEN_COMMIT_DATE")
+    );
+    let matches = App::new("LPUS")
+        .version(&*version)
+        .author("Khoa Nguyen Anh <mail.nganhkhoa@gmail.com>")
+        .about("Live memory fornesics on Windows")
+        .arg(
+            Arg::with_name("load")
+                .short("l")
+                .help("Load the driver and exit"),
+        )
+        .arg(
+            Arg::with_name("unload")
+                .short("u")
+                .help("Unload the driver and exit"),
+        )
+        .subcommand(
+            SubCommand::with_name("repl").about("Run the Interactive REPL (in development)"),
+        )
+        .subcommand(SubCommand::with_name("pdb").about("Inspect the PDB file"))
+        .subcommand(
+            SubCommand::with_name("hide_notepad")
+                .about("Compare processes found from multiple commands"),
+        )
+        .subcommand(
+            SubCommand::with_name("psxview")
+                .about("Compare processes found from multiple commands"),
+        )
+        .subcommand(
+            SubCommand::with_name("unloadedmodules")
+                .about("Compare processes found from multiple commands"),
+        )
+        .subcommand(
+            SubCommand::with_name("modscan")
+                .about("Compare processes found from multiple commands"),
+        )
+        .subcommand(
+            SubCommand::with_name("driverscan")
+                .about("Compare processes found from multiple commands"),
+        )
+        .subcommand(
+            SubCommand::with_name("ssdt")
+                .about("Dump the SSDT table")
+                .arg(
+                    Arg::with_name("hook")
+                        .short("h")
+                        .help("print only hooked function"),
+                ),
+        )
+        .get_matches();
+
+    extract_driver();
+    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
+
+    if matches.is_present("load") {
+        println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
+        return Ok(());
+    }
+    if matches.is_present("unload") {
+        println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
+        return Ok(());
+    }
+
+    driver.connect();
+
+    if let Some(_c) = matches.subcommand_matches("hide_notepad") {
+        driver.hide_notepad();
+        return Ok(());
+    }
+
+    if let Some(c) = matches.subcommand_matches("ssdt") {
+        ssdt(&driver, c.is_present("hook"));
+        return Ok(());
+    }
+
+    if let Some(_c) = matches.subcommand_matches("psxview") {
+        psxview(&driver);
+        return Ok(());
+    }
+
+    if let Some(_c) = matches.subcommand_matches("unloadedmodules") {
+        unloadedmodules(&driver);
+        return Ok(());
+    }
+
+    if let Some(_c) = matches.subcommand_matches("driverscan") {
+        driverscan(&driver);
+        return Ok(());
+    }
+
+    if let Some(_c) = matches.subcommand_matches("modscan") {
+        modscan(&driver);
+        return Ok(());
+    }
+
+    Ok(())
+}
--- a/src/bin/lpus_all.rs
+++ b/src/bin/lpus_all.rs
@ -0,0 +1,53 @@
+use serde_json::json;
+use std::error::Error;
+use std::fs;
+
+use lpus::{
+    driver_state::DriverState, scan_driver, scan_eprocess, scan_ethread, scan_kernel_module,
+    ssdt_table, traverse_activehead, traverse_handletable, traverse_kiprocesslist,
+    traverse_loadedmodulelist, traverse_unloadeddrivers,
+};
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut driver = DriverState::new();
+    if !driver.is_supported() {
+        return Err(format!(
+            "Windows version {:?} is not supported",
+            driver.windows_ffi.short_version
+        )
+        .into());
+    }
+    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
+
+    let eprocess_1 = scan_eprocess(&driver)?;
+    let eprocess_2 = traverse_activehead(&driver)?;
+    let eprocess_3 = traverse_kiprocesslist(&driver)?;
+    let eprocess_4 = traverse_handletable(&driver)?;
+    let ethread = scan_ethread(&driver)?;
+    let drivers = scan_driver(&driver)?;
+    let kernel_module_1 = scan_kernel_module(&driver)?;
+    let kernel_module_2 = traverse_loadedmodulelist(&driver)?;
+    let unloaded_driver = traverse_unloadeddrivers(&driver)?;
+    let ssdt: Vec<String> = ssdt_table(&driver)?
+        .into_iter()
+        .map(|x| format!("0x{:x}", x))
+        .collect();
+
+    let result = json!({
+        "scan_eprocess": eprocess_1,
+        "traverse_activehead": eprocess_2,
+        "traverse_kiprocesslist": eprocess_3,
+        "traverse_handletable": eprocess_4,
+        "scan_ethread": ethread,
+        "scan_driver": drivers,
+        "scan_kernel_module": kernel_module_1,
+        "traverse_loadedmodulelist": kernel_module_2,
+        "traverse_unloadeddrivers": unloaded_driver,
+        "ssdt_table": ssdt
+    });
+
+    fs::write("./lpus.json", format!("{:#}", result)).ok();
+
+    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
+    Ok(())
+}
--- a/src/bin/print_pdb.rs
+++ b/src/bin/print_pdb.rs
@ -1,12 +1,61 @@
-use std::error::Error;
-
-use lpus::{
-    driver_state::{DriverState},
-};
-
-fn main() -> Result<(), Box<dyn Error>> {
-    let driver = DriverState::new();
-    driver.windows_ffi.print_version();
-    driver.pdb_store.print_default_information();
-    Ok(())
-}
+use std::error::Error;
+// use std::time::{SystemTime, UNIX_EPOCH};
+
+use rustyline::error::ReadlineError;
+use rustyline::Editor;
+
+use lpus::driver_state::DriverState;
+
+pub fn to_epoch(filetime: u64) -> u64 {
+    // https://www.frenk.com/2009/12/convert-filetime-to-unix-timestamp/
+    let windows_epoch_diff = 11644473600000 * 10000;
+    if filetime < windows_epoch_diff {
+        return 0;
+    }
+    let process_time_epoch = (filetime - windows_epoch_diff) / 10000;
+    // let now_ms = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time went backwards").as_millis() as u64;
+
+    process_time_epoch
+}
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let driver = DriverState::new();
+    driver.windows_ffi.print_version();
+    driver.pdb_store.print_default_information();
+
+    println!("{}", to_epoch(0xfffffa80018cb688));
+    println!("{}", to_epoch(0x01d64ecd8b295318));
+
+    let mut rl = Editor::<()>::new();
+    if rl.load_history("history.lpus").is_err() {
+        println!("No previous history.");
+    }
+    loop {
+        let readline = rl.readline(">> ");
+        match readline {
+            Ok(line) => {
+                rl.add_history_entry(line.as_str());
+                println!("Line: {}", line);
+                // TODO: add parser here
+                if let Err(e) = driver.pdb_store.dt(&line) {
+                    println!("{}", e);
+                }
+            }
+            Err(ReadlineError::Interrupted) => {
+                println!("CTRL-C");
+                break;
+            }
+            Err(ReadlineError::Eof) => {
+                println!("CTRL-D");
+                break;
+            }
+            Err(err) => {
+                println!("Error: {:?}", err);
+                break;
+            }
+        }
+    }
+    rl.save_history("history.lpus").unwrap();
+
+    Ok(())
+}
--- a/src/bin/test_load.rs
+++ b/src/bin/test_load.rs
@ -0,0 +1,11 @@
+use std::error::Error;
+
+use lpus::driver_state::DriverState;
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut driver = DriverState::new();
+    println!("NtLoadDriver()   -> 0x{:x}", driver.startup());
+
+    println!("NtUnloadDriver() -> 0x{:x}", driver.shutdown());
+    Ok(())
+}
--- a/src/commands.rs
+++ b/src/commands.rs
@ -0,0 +1,190 @@
+use serde_json::Value;
+use std::collections::HashSet;
+use std::error::Error;
+
+use prettytable::{cell, row, Table};
+
+use parse_int::parse;
+
+use crate::{
+    driver_state::DriverState, scan_driver, scan_eprocess, scan_ethread, scan_kernel_module,
+    ssdt_table, traverse_activehead, traverse_handletable, traverse_kiprocesslist,
+    traverse_loadedmodulelist, traverse_unloadeddrivers,
+};
+
+pub fn ssdt(driver: &DriverState, only_hooked: bool) {
+    let loaded = traverse_loadedmodulelist(&driver).unwrap_or(Vec::new());
+    let ssdt = ssdt_table(&driver).unwrap_or(Vec::new());
+    let ntosbase = driver.get_kernel_base();
+
+    for (idx, func) in ssdt.iter().enumerate() {
+        let owner = loaded.iter().find_map(|r| {
+            let base = r["dllbase"]
+                .as_str()
+                .and_then(|b| parse::<u64>(b).ok())
+                .unwrap_or(0);
+            let size = r["size"]
+                .as_str()
+                .and_then(|s| parse::<u64>(s).ok())
+                .unwrap_or(0);
+
+            if *func > base && *func < base + size {
+                let module = r["BaseName"].as_str().unwrap();
+                Some(module)
+            } else {
+                None
+            }
+        });
+        if owner == Some("ntoskrnl.exe") {
+            if !only_hooked {
+                let offset = func - ntosbase.address();
+                let funcname: String = {
+                    driver
+                        .pdb_store
+                        .symbols
+                        .iter()
+                        .find_map(|(name, o)| {
+                            if o.clone() == offset {
+                                Some(name.clone())
+                            } else {
+                                None
+                            }
+                        })
+                        .unwrap_or("(??)".to_string())
+                };
+                println!("SSDT [{}]\t0x{:x}", idx, func);
+                println!("\towned by nt!{}", funcname);
+            }
+        } else if let Some(owner_) = owner {
+            println!("SSDT [{}]\t0x{:x}", idx, func);
+            println!("\\thooked by {}", owner_);
+        } else {
+            println!("SSDT [{}]\t0x{:x}", idx, func);
+            println!("\tmissing owner");
+        }
+    }
+}
+
+pub fn psxview(driver: &DriverState) {
+    fn process_in_list(addr: &str, list: &Vec<Value>) -> bool {
+        for r in list.iter() {
+            if r["address"].as_str().unwrap() == addr {
+                return true;
+            }
+        }
+        false
+    }
+
+    fn get_from_list(addr: &str, list: &Vec<Value>) -> Option<Value> {
+        for r in list.iter() {
+            if r["address"].as_str().unwrap() == addr {
+                return Some(r.clone());
+            }
+        }
+        None
+    }
+
+    fn process_in_list_thread(addr: &str, list: &Vec<Value>) -> bool {
+        for r in list.iter() {
+            if r["eprocess"].as_str().unwrap() == addr {
+                return true;
+            }
+        }
+        false
+    }
+
+    let process_scan = scan_eprocess(&driver).unwrap_or(Vec::new());
+    let thread_scan = scan_ethread(&driver).unwrap_or(Vec::new());
+    let activehead = traverse_activehead(&driver).unwrap_or(Vec::new());
+    let kiprocesslist = traverse_kiprocesslist(&driver).unwrap_or(Vec::new());
+    let handletable = traverse_handletable(&driver).unwrap_or(Vec::new());
+
+    let mut unique_process = HashSet::new();
+    for list in [&process_scan, &activehead, &kiprocesslist, &handletable].iter() {
+        for r in list.iter() {
+            let addr = r["address"].as_str().unwrap();
+            unique_process.insert(addr);
+        }
+    }
+
+    let mut table = Table::new();
+    table.add_row(row![
+        "Address",
+        "Name",
+        "pid",
+        "ppid",
+        "PoolTagScan",
+        "ActiveProcessHead",
+        "KiProcessListHead",
+        "HandleTableList",
+        "ThreadScan"
+    ]);
+    for p in &unique_process {
+        let addr = p.to_string();
+        let v = {
+            if let Some(vv) = get_from_list(&addr, &activehead) {
+                vv
+            } else {
+                get_from_list(&addr, &process_scan).unwrap_or_default()
+            }
+        };
+        table.add_row(row![
+            &addr,
+            v["name"].as_str().unwrap_or("(??)"),
+            v["pid"].as_i64().unwrap_or(-1),
+            v["ppid"].as_i64().unwrap_or(-1),
+            process_in_list(&addr, &process_scan),
+            process_in_list(&addr, &activehead),
+            process_in_list(&addr, &kiprocesslist),
+            process_in_list(&addr, &handletable),
+            process_in_list_thread(&addr, &thread_scan)
+        ]);
+    }
+
+    table.printstd();
+}
+pub fn modscan(driver: &DriverState) {
+    let dd = scan_kernel_module(&driver).unwrap_or(Vec::new());
+    let mut table = Table::new();
+    table.add_row(row!["Address", "Base name", "Base", "Size", "File"]);
+    for d in &dd {
+        table.add_row(row![
+            d["address"].as_str().unwrap_or("(??)"),
+            d["BaseName"].as_str().unwrap_or("(??)"),
+            d["dllbase"].as_str().unwrap_or("(??)"),
+            d["size"].as_str().unwrap_or("(??)"),
+            d["FullName"].as_str().unwrap_or("(??)"),
+        ]);
+    }
+    table.printstd();
+}
+pub fn driverscan(driver: &DriverState) {
+    let dd = scan_driver(&driver).unwrap_or(Vec::new());
+    let mut table = Table::new();
+    table.add_row(row!["Address", "Device", "Service key", "Start", "Size"]);
+    for d in &dd {
+        table.add_row(row![
+            d["address"].as_str().unwrap_or("(??)"),
+            d["device"].as_str().unwrap_or("(??)"),
+            d["servicekey"].as_str().unwrap_or("(??)"),
+            d["start"].as_str().unwrap_or("(??)"),
+            d["size"].as_str().unwrap_or("(??)"),
+        ]);
+    }
+    table.printstd();
+}
+pub fn unloadedmodules(driver: &DriverState) {
+    let modules = traverse_unloadeddrivers(&driver).unwrap_or(Vec::new());
+    let mut table = Table::new();
+    table.add_row(row!["Address", "Driver", "Start", "End", "Time"]);
+    for m in &modules {
+        table.add_row(row![
+            m["address"].as_str().unwrap_or("(??)"),
+            m["name"].as_str().unwrap_or("(??)"),
+            m["start_addr"].as_str().unwrap_or("(??)"),
+            m["end_addr"].as_str().unwrap_or("(??)"),
+            m["time_rfc2822"].as_str().unwrap_or("(??)"),
+        ]);
+    }
+    table.printstd();
+}
--- a/src/downloader.rs
+++ b/src/downloader.rs
@ -0,0 +1,53 @@
+use std::error::Error;
+
+use indicatif::{ProgressBar, ProgressStyle};
+use reqwest::{header, Client};
+use std::path::Path;
+use structopt::StructOpt;
+use tokio::{fs, io::AsyncWriteExt};
+
+type BoxResult<T> = Result<T, Box<dyn Error>>;
+
+async fn download(url: &str, path: &PathBuf) -> BoxResult<()> {
+    let client = Client::new();
+    let total_size = {
+        let resp = client.head(url).send().await?;
+        if resp.status().is_success() {
+            resp.headers()
+                .get(header::CONTENT_LENGTH)
+                .and_then(|ct_len| ct_len.to_str().ok())
+                .and_then(|ct_len| ct_len.parse().ok())
+                .unwrap_or(0)
+        } else {
+            return Err(format!("Couldn'n download URL: {}", url));
+        }
+    };
+
+    let mut request = client.get(url);
+    let pb = ProgressBar::new(total_size);
+    pb.set_style(
+        ProgressStyle::default_bar()
+        .template("{spinner:.green} [{elapsed_precise}] \
+                   [{bar:40.cyan/blue}] {bytes}/{total_bytes} ({eta})")
+        .progress_chars("#>-"));
+
+    let file = Path::new(path);
+
+    if file.exists() {
+        return Err(format!("File {:?} existed", file));
+        // let size = file.metadata()?.len().saturating_sub(1);
+        // request = request.header(header::RANGE, format!("bytes={}-", size));
+        // pb.inc(size);
+    }
+
+    let mut source = request.send().await?;
+    let mut dest = fs::OpenOptions::new().create(true).append(true).open(&file).await?;
+    while let Some(chunk) = source.chunk().await? {
+        dest.write_all(&chunk).await?;
+        pb.inc(chunk.len() as u64);
+    }
+
+    println!("Download of '{}' has been completed.", file.to_str().unwrap());
+
+    Ok(())
+}
--- a/src/driver_state.rs
+++ b/src/driver_state.rs
@ -1,347 +1,397 @@
-use std::default::Default;
-use std::clone::Clone;
-use std::error::Error;
-// use std::io::{Error, ErrorKind};
-use std::ffi::c_void;
-use std::mem::{size_of_val};
-
-use winapi::shared::ntdef::{NTSTATUS};
-use winapi::shared::minwindef::{DWORD};
-use winapi::um::winioctl::{
-    CTL_CODE, FILE_ANY_ACCESS,
-    METHOD_IN_DIRECT, METHOD_OUT_DIRECT, /* METHOD_BUFFERED, */ METHOD_NEITHER
-};
-
-use crate::address::Address;
-use crate::pdb_store::{PdbStore, parse_pdb};
-use crate::windows::{WindowsFFI, WindowsVersion};
-use crate::ioctl_protocol::{
-    InputData, OffsetData, DerefAddr, ScanPoolData, /* HideProcess, */
-    /* OutputData, */ Nothing
-};
-
-type BoxResult<T> = Result<T, Box<dyn Error>>;
-
-const SIOCTL_TYPE: DWORD = 40000;
-
-pub fn to_epoch(filetime: u64) -> u64 {
-    let windows_epoch_diff: u64 = 11644473600000 * 10000;
-    if filetime < windows_epoch_diff {
-        return 0;
-    }
-    let process_time_epoch: u64 = (filetime - windows_epoch_diff) / 10000;
-    process_time_epoch
-}
-
-#[allow(dead_code)]
-#[derive(Debug)]
-pub enum DriverAction {
-    SetupOffset,
-    GetKernelBase,
-    ScanPsActiveHead,
-    ScanPool,
-    ScanPoolRemote,
-    DereferenceAddress,
-    HideProcess
-}
-
-impl DriverAction {
-    pub fn get_code(&self) -> DWORD {
-        match self {
-            DriverAction::SetupOffset => CTL_CODE(SIOCTL_TYPE, 0x900, METHOD_IN_DIRECT, FILE_ANY_ACCESS),
-            DriverAction::GetKernelBase => CTL_CODE(SIOCTL_TYPE, 0x901, METHOD_OUT_DIRECT, FILE_ANY_ACCESS),
-            DriverAction::ScanPsActiveHead => CTL_CODE(SIOCTL_TYPE, 0x902, METHOD_NEITHER, FILE_ANY_ACCESS),
-            DriverAction::ScanPool => CTL_CODE(SIOCTL_TYPE, 0x903, METHOD_IN_DIRECT, FILE_ANY_ACCESS),
-            DriverAction::ScanPoolRemote => CTL_CODE(SIOCTL_TYPE, 0x904, METHOD_IN_DIRECT, FILE_ANY_ACCESS),
-            DriverAction::DereferenceAddress => CTL_CODE(SIOCTL_TYPE, 0xA00, METHOD_OUT_DIRECT, FILE_ANY_ACCESS),
-            DriverAction::HideProcess => CTL_CODE(SIOCTL_TYPE, 0xA01, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
-        }
-    }
-}
-
-#[derive(Debug)]
-pub struct EprocessPoolChunk {
-    pub pool_addr: u64,
-    pub eprocess_addr: u64,
-    pub eprocess_name: String,
-    pub create_time: u64,
-    pub exit_time: u64
-}
-
-impl PartialEq for EprocessPoolChunk {
-    fn eq(&self, other: &Self) -> bool {
-        self.eprocess_addr == other.eprocess_addr
-    }
-}
-
-#[allow(dead_code)]
-pub struct DriverState {
-    // TODO: Make private, only call methods of DriverState
-    pub pdb_store: PdbStore,
-    pub windows_ffi: WindowsFFI,
-}
-
-impl DriverState {
-    pub fn new() -> Self {
-        Self {
-            pdb_store: parse_pdb().expect("Cannot get PDB file"),
-            windows_ffi: WindowsFFI::new()
-        }
-    }
-
-    pub fn startup(&mut self) -> NTSTATUS {
-        let s = self.windows_ffi.load_driver();
-        let mut input = InputData {
-            offset_value: OffsetData::new(&self.pdb_store, self.windows_ffi.short_version)
-        };
-        self.windows_ffi.device_io(DriverAction::SetupOffset.get_code(),
-                                   &mut input, &mut Nothing);
-        s
-    }
-
-    pub fn shutdown(&self) -> NTSTATUS {
-        self.windows_ffi.unload_driver()
-    }
-
-    pub fn get_kernel_base(&self) -> Address {
-        let mut ntosbase = 0u64;
-        self.windows_ffi.device_io(DriverAction::GetKernelBase.get_code(),
-                                   &mut Nothing, &mut ntosbase);
-        Address::from_base(ntosbase)
-    }
-
-    // pub fn scan_active_head(&self) -> BoxResult<Vec<EprocessPoolChunk>> {
-    //     let ntosbase = self.get_kernel_base();
-    //     let ps_active_head = ntosbase + self.pdb_store.get_offset_r("PsActiveProcessHead")?;
-    //     let flink_offset = self.pdb_store.get_offset_r("_LIST_ENTRY.Flink")?;
-    //     let eprocess_link_offset = self.pdb_store.get_offset_r("_EPROCESS.ActiveProcessLinks")?;
-    //     let eprocess_name_offset = self.pdb_store.get_offset_r("_EPROCESS.ImageFileName")?;
-    //
-    //     let mut ptr = ps_active_head;
-    //     self.deref_addr((ptr + flink_offset).get(), &mut ptr);
-    //
-    //     let mut result: Vec<EprocessPoolChunk> = Vec::new();
-    //     while ptr != ps_active_head {
-    //         let mut image_name = [0u8; 15];
-    //         let eprocess = ptr - eprocess_link_offset;
-    //         self.deref_addr(eprocess + eprocess_name_offset, &mut image_name);
-    //         match std::str::from_utf8(&image_name) {
-    //             Ok(n) => {
-    //                 result.push(EprocessPoolChunk {
-    //                     pool_addr: 0,
-    //                     eprocess_addr: eprocess,
-    //                     eprocess_name: n.to_string()
-    //                                     .trim_end_matches(char::from(0))
-    //                                     .to_string(),
-    //                     create_time: 0,
-    //                     exit_time: 0
-    //
-    //                 });
-    //             },
-    //             _ => {}
-    //         };
-    //         self.deref_addr(ptr + flink_offset, &mut ptr);
-    //     }
-    //     Ok(result)
-    // }
-
-    pub fn scan_pool<F>(&self, tag: &[u8; 4], expected_struct: &str, mut handler: F) -> BoxResult<bool>
-                        where F: FnMut(Address, &[u8], Address) -> BoxResult<bool>
-                        // F(Pool Address, Pool Header Data, Pool Data Address)
-                        // TODO: Pool Header as a real struct
-    {
-        // TODO: make generator, in hold: https://github.com/rust-lang/rust/issues/43122
-        // Making this function a generator will turn the call to a for loop
-        // https://docs.rs/gen-iter/0.2.0/gen_iter/
-        // >> More flexibility in code
-        let pool_header_size = self.pdb_store.get_offset_r("_POOL_HEADER.struct_size")?;
-        let minimum_block_size = self.pdb_store.get_offset_r(&format!("{}.struct_size", expected_struct))?
-                               + pool_header_size;
-        let code = DriverAction::ScanPoolRemote.get_code();
-        let ntosbase = self.get_kernel_base();
-        let [start_address, end_address] = self.get_nonpaged_range(&ntosbase)?;
-
-        println!("kernel base: {}; non-paged pool (start, end): ({}, {})", ntosbase, start_address, end_address);
-
-        let mut ptr = start_address;
-        while ptr < end_address {
-            let mut next_found = 0u64;
-            let mut input = InputData {
-                scan_range: ScanPoolData::new(&[ptr.address(), end_address.address()], tag)
-            };
-            self.windows_ffi.device_io(code, &mut input, &mut next_found);
-            ptr = Address::from_base(next_found);
-            if ptr >= end_address {
-                break;
-            }
-
-            let pool_addr = Address::from_base(ptr.address());
-            let header: Vec<u8> = self.deref_array(&pool_addr, pool_header_size);
-            let chunk_size = (header[2] as u64) * 16u64;
-
-            if pool_addr.address() + chunk_size > end_address.address() {
-                // the chunk surpasses the non page pool range
-                break;
-            }
-
-            // automatically reject bad chunk
-            if chunk_size < minimum_block_size {
-                ptr += 0x4;
-                continue;
-            }
-
-            let data_addr = Address::from_base(pool_addr.address() + pool_header_size);
-
-            let success = handler(pool_addr, &header, data_addr)?;
-            if success {
-                ptr += chunk_size; /* skip this chunk */
-            }
-            else {
-                ptr += 0x4; /* search next */
-            }
-        }
-        Ok(true)
-    }
-
-    pub fn address_of(&self, addr: &Address, name: &str) -> BoxResult<u64> {
-        let resolver = |p| { self.deref_addr_new(p) };
-        let r = self.pdb_store.decompose(&addr, &name)?;
-        Ok(r.get(&resolver))
-    }
-
-    pub fn decompose<T: Default>(&self, addr: &Address, name: &str) -> BoxResult<T> {
-        // interface to pdb_store.decompose
-        let resolver = |p| { self.deref_addr_new(p) };
-        let r: T = self.deref_addr_new(self.pdb_store.decompose(&addr, &name)?.get(&resolver));
-        Ok(r)
-    }
-
-    pub fn decompose_array<T: Default + Clone>(&self, addr: &Address, name: &str, len: u64) -> BoxResult<Vec<T>> {
-        // interface to pdb_store.decompose for array
-        let r: Vec<T> = self.deref_array(&self.pdb_store.decompose(&addr, &name)?, len);
-        Ok(r)
-    }
-
-    pub fn deref_addr_new<T: Default>(&self, addr: u64) -> T {
-        let mut r: T = Default::default();
-        if addr != 0 {
-            self.deref_addr(addr, &mut r);
-        }
-        r
-    }
-
-    pub fn deref_array<T: Default + Clone>(&self, addr: &Address, len: u64) -> Vec<T> {
-        let resolver = |p| { self.deref_addr_new(p) };
-        let mut r: Vec<T> = vec![Default::default(); len as usize];
-        self.deref_addr_ptr(addr.get(&resolver), r.as_mut_ptr(), len);
-        r
-    }
-
-    // #[deprecated(note="use deref_addr_new<T>")]
-    pub fn deref_addr<T>(&self, addr: u64, outbuf: &mut T) {
-        let code = DriverAction::DereferenceAddress.get_code();
-        let size: usize = size_of_val(outbuf);
-        let mut input = InputData {
-            deref_addr: DerefAddr {
-                addr,
-                size: size as u64
-            }
-        };
-        self.windows_ffi.device_io(code, &mut input, outbuf);
-    }
-
-    // #[deprecated(note="use deref_array<T>")]
-    pub fn deref_addr_ptr<T>(&self, addr: u64, outptr: *mut T, output_len: u64) {
-        let code = DriverAction::DereferenceAddress.get_code();
-        let mut input = InputData {
-            deref_addr: DerefAddr {
-                addr,
-                size: output_len
-            }
-        };
-        self.windows_ffi.device_io_raw(code,
-                                       &mut input as *mut _ as *mut c_void, size_of_val(&input) as DWORD,
-                                       outptr as *mut c_void, output_len as DWORD);
-    }
-
-    pub fn get_unicode_string(&self, unicode_str_addr: u64, deref: bool) -> BoxResult<String> {
-        if unicode_str_addr == 0 {
-            return Err("Not a valid address".into());
-        }
-
-        let mut strlen = 0u16;
-        let mut capacity = 0u16;
-        let mut bufaddr = 0u64;
-        let buffer_ptr = unicode_str_addr + self.pdb_store.get_offset_r("_UNICODE_STRING.Buffer")?;
-        let capacity_addr  = unicode_str_addr + self.pdb_store.get_offset_r("_UNICODE_STRING.MaximumLength")?;
-
-        self.deref_addr(unicode_str_addr, &mut strlen);
-        self.deref_addr(capacity_addr, &mut capacity);
-        self.deref_addr(buffer_ptr, &mut bufaddr);
-
-        if bufaddr == 0 || strlen > capacity || strlen == 0 || strlen % 2 != 0 {
-            return Err("Unicode string is empty".into());
-        }
-
-        if !deref {
-            return Ok("".to_string());
-        }
-
-        let mut buf = vec![0u16; (strlen / 2) as usize];
-        self.deref_addr_ptr(bufaddr, buf.as_mut_ptr(), strlen as u64);
-        // TODO: BUG with deref_array, len is wrong,
-        // >> the size of vector is strlen / 2
-        // >> the size to dereference is strlen
-        // XXX: use Vec<u8> and turn to Vec<u16>
-        // let buf: Vec<u16> = self.deref_array(&Address::from_base(bufaddr), (strlen / 2) as u64);
-
-        Ok(String::from_utf16(&buf)?)
-    }
-
-    pub fn get_nonpaged_range(&self, ntosbase: &Address) -> BoxResult<[Address; 2]> {
-        // TODO: Add support for other Windows version here
-        match self.windows_ffi.short_version {
-            WindowsVersion::Windows10FastRing => {
-                let mistate = ntosbase.clone() + self.pdb_store.get_offset_r("MiState")?;
-                let path_first_va: String = vec![
-                    "_MI_SYSTEM_INFORMATION",
-                    "Hardware",
-                    "SystemNodeNonPagedPool",
-                    "NonPagedPoolFirstVa"
-                ].join(".");
-                let path_last_va: String = vec![
-                    "_MI_SYSTEM_INFORMATION",
-                    "Hardware",
-                    "SystemNodeNonPagedPool",
-                    "NonPagedPoolLastVa"
-                ].join(".");
-                let first_va = Address::from_base(self.decompose(&mistate, &path_first_va)?);
-                let last_va = Address::from_base(self.decompose(&mistate, &path_last_va)?);
-                Ok([first_va, last_va])
-            },
-            WindowsVersion::Windows10_2019 |
-            WindowsVersion::Windows10_2018 => {
-                let mistate = ntosbase.clone() + self.pdb_store.get_offset_r("MiState")?;
-                let path_first_va: String = vec![
-                    "_MI_SYSTEM_INFORMATION",
-                    "Hardware",
-                    "SystemNodeInformation",
-                    "NonPagedPoolFirstVa"
-                ].join(".");
-                let path_last_va: String = vec![
-                    "_MI_SYSTEM_INFORMATION",
-                    "Hardware",
-                    "SystemNodeInformation",
-                    "NonPagedPoolLastVa"
-                ].join(".");
-                let first_va = Address::from_base(self.decompose(&mistate, &path_first_va)?);
-                let last_va = Address::from_base(self.decompose(&mistate, &path_last_va)?);
-                Ok([first_va, last_va])
-            },
-            _ => {
-                Err("Windows version for nonpaged pool algorithm is not implemented".into())
-            }
-        }
-    }
-
-}
+use std::clone::Clone;
+use std::default::Default;
+use std::error::Error;
+// use std::io::{Error, ErrorKind};
+use std::ffi::c_void;
+use std::mem::{size_of, size_of_val};
+
+use winapi::shared::minwindef::DWORD;
+use winapi::shared::ntdef::NTSTATUS;
+use winapi::um::winioctl::{
+    CTL_CODE, FILE_ANY_ACCESS, METHOD_IN_DIRECT, /* METHOD_BUFFERED, */ METHOD_NEITHER,
+    METHOD_OUT_DIRECT,
+};
+
+use crate::address::Address;
+use crate::ioctl_protocol::{
+    DerefAddr, HideProcess, InputData, /* OutputData, */ Nothing, OffsetData, ScanPoolData,
+};
+use crate::pdb_store::{parse_pdb, PdbStore};
+use crate::windows::{WindowsFFI, WindowsVersion};
+
+type BoxResult<T> = Result<T, Box<dyn Error>>;
+
+const SIOCTL_TYPE: DWORD = 40000;
+
+pub fn to_epoch(filetime: u64) -> u64 {
+    let windows_epoch_diff: u64 = 11644473600000 * 10000;
+    if filetime < windows_epoch_diff {
+        return 0;
+    }
+    let process_time_epoch: u64 = (filetime - windows_epoch_diff) / 10000;
+    process_time_epoch
+}
+
+#[allow(dead_code)]
+#[derive(Debug)]
+pub enum DriverAction {
+    SetupOffset,
+    GetKernelBase,
+    ScanPsActiveHead,
+    ScanPool,
+    ScanPoolRemote,
+    DereferenceAddress,
+    HideProcess,
+}
+
+impl DriverAction {
+    pub fn get_code(&self) -> DWORD {
+        match self {
+            DriverAction::SetupOffset => {
+                CTL_CODE(SIOCTL_TYPE, 0x900, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
+            }
+            DriverAction::GetKernelBase => {
+                CTL_CODE(SIOCTL_TYPE, 0x901, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
+            }
+            DriverAction::ScanPsActiveHead => {
+                CTL_CODE(SIOCTL_TYPE, 0x902, METHOD_NEITHER, FILE_ANY_ACCESS)
+            }
+            DriverAction::ScanPool => {
+                CTL_CODE(SIOCTL_TYPE, 0x903, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
+            }
+            DriverAction::ScanPoolRemote => {
+                CTL_CODE(SIOCTL_TYPE, 0x904, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
+            }
+            DriverAction::DereferenceAddress => {
+                CTL_CODE(SIOCTL_TYPE, 0xA00, METHOD_OUT_DIRECT, FILE_ANY_ACCESS)
+            }
+            DriverAction::HideProcess => {
+                CTL_CODE(SIOCTL_TYPE, 0xA01, METHOD_IN_DIRECT, FILE_ANY_ACCESS)
+            }
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct EprocessPoolChunk {
+    pub pool_addr: u64,
+    pub eprocess_addr: u64,
+    pub eprocess_name: String,
+    pub create_time: u64,
+    pub exit_time: u64,
+}
+
+impl PartialEq for EprocessPoolChunk {
+    fn eq(&self, other: &Self) -> bool {
+        self.eprocess_addr == other.eprocess_addr
+    }
+}
+
+#[allow(dead_code)]
+pub struct DriverState {
+    // TODO: Make private, only call methods of DriverState
+    pub pdb_store: PdbStore,
+    pub windows_ffi: WindowsFFI,
+}
+
+impl DriverState {
+    pub fn new() -> Self {
+        Self {
+            pdb_store: parse_pdb().expect("Cannot get PDB file"),
+            windows_ffi: WindowsFFI::new(),
+        }
+    }
+
+    pub fn startup(&mut self) -> NTSTATUS {
+        let s = self.windows_ffi.load_driver();
+        let mut input = InputData {
+            offset_value: OffsetData::new(&self.pdb_store, self.windows_ffi.short_version),
+        };
+        self.windows_ffi.device_io(
+            DriverAction::SetupOffset.get_code(),
+            &mut input,
+            &mut Nothing,
+        );
+        s
+    }
+
+    pub fn shutdown(&self) -> NTSTATUS {
+        self.windows_ffi.unload_driver()
+    }
+
+    pub fn connect(&mut self) {
+        self.windows_ffi.file_connect();
+    }
+
+    pub fn is_supported(&self) -> bool {
+        self.windows_ffi.short_version.is_supported()
+    }
+
+    pub fn hide_notepad(&self) {
+        let s = String::from("notepad.exe");
+        let s_bytes = s.as_bytes();
+        let mut name = [0u8; 15];
+        for i in 0..s.len() {
+            name[i] = s_bytes[i];
+        }
+        let mut input = InputData {
+            hide_process: HideProcess {
+                name,
+                size: s.len() as u64,
+            },
+        };
+        self.windows_ffi.device_io(
+            DriverAction::HideProcess.get_code(),
+            &mut input,
+            &mut Nothing,
+        );
+    }
+
+    pub fn use_old_tag(&self) -> bool {
+        // use old tag to scan, for Window < 8
+        if self.windows_ffi.short_version < WindowsVersion::Windows8 {
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn get_kernel_base(&self) -> Address {
+        let mut ntosbase = 0u64;
+        self.windows_ffi.device_io(
+            DriverAction::GetKernelBase.get_code(),
+            &mut Nothing,
+            &mut ntosbase,
+        );
+        Address::from_base(ntosbase)
+    }
+
+    pub fn scan_pool<F>(
+        &self,
+        tag: &[u8; 4],
+        expected_struct: &str,
+        mut handler: F,
+    ) -> BoxResult<bool>
+    where
+        F: FnMut(Address, &[u8], Address) -> BoxResult<bool>, // F(Pool Address, Pool Header Data, Pool Data Address)
+                                                              // TODO: Pool Header as a real struct
+    {
+        // TODO: scan large pool
+        // TODO: make generator, in hold: https://github.com/rust-lang/rust/issues/43122
+        // Making this function a generator will turn the call to a for loop
+        // https://docs.rs/gen-iter/0.2.0/gen_iter/
+        // >> More flexibility in code
+        let pool_header_size = self.pdb_store.get_offset_r("_POOL_HEADER.struct_size")?;
+        let minimum_block_size = self
+            .pdb_store
+            .get_offset_r(&format!("{}.struct_size", expected_struct))?
+            + pool_header_size;
+        let code = DriverAction::ScanPoolRemote.get_code();
+        let ntosbase = self.get_kernel_base();
+        let [start_address, end_address] = self.get_nonpaged_range(&ntosbase)?;
+
+        println!(
+            "kernel base: {}; non-paged pool (start, end): ({}, {}); tag: {:?} {}",
+            ntosbase, start_address, end_address, tag, expected_struct
+        );
+
+        let mut ptr = start_address;
+        while ptr < end_address {
+            let mut next_found = 0u64;
+            let mut input = InputData {
+                scan_range: ScanPoolData::new(&[ptr.address(), end_address.address()], tag),
+            };
+            self.windows_ffi
+                .device_io(code, &mut input, &mut next_found);
+            ptr = Address::from_base(next_found);
+            if ptr >= end_address {
+                break;
+            }
+
+            let pool_addr = Address::from_base(ptr.address());
+            let header: Vec<u8> = self.deref_array(&pool_addr, pool_header_size);
+            let chunk_size = (header[2] as u64) * 16u64;
+
+            if pool_addr.address() + chunk_size > end_address.address() {
+                // the chunk surpasses the non page pool range
+                break;
+            }
+
+            // automatically reject bad chunk
+            if chunk_size < minimum_block_size {
+                ptr += 0x4;
+                continue;
+            }
+
+            let data_addr = Address::from_base(pool_addr.address() + pool_header_size);
+            let success = handler(pool_addr, &header, data_addr).unwrap_or(false);
+            if success {
+                ptr += chunk_size; // skip this chunk
+            } else {
+                ptr += 0x4; // search next
+            }
+        }
+        Ok(true)
+    }
+
+    pub fn address_of(&self, addr: &Address, name: &str) -> BoxResult<u64> {
+        let resolver = |p| self.deref_addr_new(p);
+        let r = self.pdb_store.decompose(&addr, &name)?;
+        Ok(r.get(&resolver))
+    }
+
+    pub fn decompose<T: Default>(&self, addr: &Address, name: &str) -> BoxResult<T> {
+        // interface to pdb_store.decompose
+        let resolver = |p| self.deref_addr_new(p);
+        let r: T = self.deref_addr_new(self.pdb_store.decompose(&addr, &name)?.get(&resolver));
+        Ok(r)
+    }
+
+    pub fn decompose_array<T: Default + Clone>(
+        &self,
+        addr: &Address,
+        name: &str,
+        len: u64,
+    ) -> BoxResult<Vec<T>> {
+        // interface to pdb_store.decompose for array
+        let r: Vec<T> = self.deref_array(&self.pdb_store.decompose(&addr, &name)?, len);
+        Ok(r)
+    }
+
+    pub fn deref_addr_new<T: Default>(&self, addr: u64) -> T {
+        let mut r: T = Default::default();
+        if addr != 0 {
+            self.deref_addr(addr, &mut r);
+        }
+        r
+    }
+
+    pub fn deref_array<T: Default + Clone>(&self, addr: &Address, len: u64) -> Vec<T> {
+        let resolver = |p| self.deref_addr_new(p);
+        let mut r: Vec<T> = vec![Default::default(); len as usize];
+        let size_in_byte = (len as usize) * size_of::<T>();
+        self.deref_addr_ptr(addr.get(&resolver), r.as_mut_ptr(), size_in_byte as u64);
+        r
+    }
+
+    // #[deprecated(note="use deref_addr_new<T>")]
+    pub fn deref_addr<T>(&self, addr: u64, outbuf: &mut T) {
+        let code = DriverAction::DereferenceAddress.get_code();
+        let size: usize = size_of_val(outbuf);
+        let mut input = InputData {
+            deref_addr: DerefAddr {
+                addr,
+                size: size as u64,
+            },
+        };
+        self.windows_ffi.device_io(code, &mut input, outbuf);
+    }
+
+    // #[deprecated(note="use deref_array<T>")]
+    pub fn deref_addr_ptr<T>(&self, addr: u64, outptr: *mut T, output_len_as_byte: u64) {
+        let code = DriverAction::DereferenceAddress.get_code();
+        let mut input = InputData {
+            deref_addr: DerefAddr {
+                addr,
+                size: output_len_as_byte,
+            },
+        };
+        self.windows_ffi.device_io_raw(
+            code,
+            &mut input as *mut _ as *mut c_void,
+            size_of_val(&input) as DWORD,
+            outptr as *mut c_void,
+            output_len_as_byte as DWORD,
+        );
+    }
+
+    pub fn get_unicode_string(&self, unicode_str_addr: u64) -> BoxResult<String> {
+        if unicode_str_addr == 0 {
+            return Err("Not a valid address".into());
+        }
+
+        let mut strlen = 0u16;
+        let mut capacity = 0u16;
+        let mut bufaddr = 0u64;
+        let buffer_ptr =
+            unicode_str_addr + self.pdb_store.get_offset_r("_UNICODE_STRING.Buffer")?;
+        let capacity_addr = unicode_str_addr
+            + self
+                .pdb_store
+                .get_offset_r("_UNICODE_STRING.MaximumLength")?;
+
+        self.deref_addr(unicode_str_addr, &mut strlen);
+        self.deref_addr(capacity_addr, &mut capacity);
+        self.deref_addr(buffer_ptr, &mut bufaddr);
+
+        if bufaddr == 0 || strlen > capacity || strlen == 0 || strlen % 2 != 0 {
+            return Err("Unicode string is empty".into());
+        }
+
+        let mut buf = vec![0u16; (strlen / 2) as usize];
+        self.deref_addr_ptr(bufaddr, buf.as_mut_ptr(), strlen as u64);
+        // TODO: BUG with deref_array, len is wrong,
+        // >> the size of vector is strlen / 2
+        // >> the size to dereference is strlen
+        // XXX: use Vec<u8> and turn to Vec<u16>
+        // let buf: Vec<u16> = self.deref_array(&Address::from_base(bufaddr), (strlen / 2) as u64);
+
+        Ok(String::from_utf16(&buf)?)
+    }
+
+    pub fn get_nonpaged_range(&self, ntosbase: &Address) -> BoxResult<[Address; 2]> {
+        // TODO: Add support for other Windows version here
+        match self.windows_ffi.short_version {
+            WindowsVersion::WindowsFastRing => {
+                let mistate = ntosbase.clone() + self.pdb_store.get_offset_r("MiState")?;
+                let path_first_va: String = vec![
+                    "_MI_SYSTEM_INFORMATION",
+                    "Hardware",
+                    "SystemNodeNonPagedPool",
+                    "NonPagedPoolFirstVa",
+                ]
+                .join(".");
+                let path_last_va: String = vec![
+                    "_MI_SYSTEM_INFORMATION",
+                    "Hardware",
+                    "SystemNodeNonPagedPool",
+                    "NonPagedPoolLastVa",
+                ]
+                .join(".");
+                let first_va = Address::from_base(self.decompose(&mistate, &path_first_va)?);
+                let last_va = Address::from_base(self.decompose(&mistate, &path_last_va)?);
+                Ok([first_va, last_va])
+            }
+            WindowsVersion::Windows10_2019 | WindowsVersion::Windows10_2018 => {
+                let mistate = ntosbase.clone() + self.pdb_store.get_offset_r("MiState")?;
+                let path_first_va: String = vec![
+                    "_MI_SYSTEM_INFORMATION",
+                    "Hardware",
+                    "SystemNodeInformation",
+                    "NonPagedPoolFirstVa",
+                ]
+                .join(".");
+                let path_last_va: String = vec![
+                    "_MI_SYSTEM_INFORMATION",
+                    "Hardware",
+                    "SystemNodeInformation",
+                    "NonPagedPoolLastVa",
+                ]
+                .join(".");
+                let first_va = Address::from_base(self.decompose(&mistate, &path_first_va)?);
+                let last_va = Address::from_base(self.decompose(&mistate, &path_last_va)?);
+                Ok([first_va, last_va])
+            }
+            WindowsVersion::Windows7 => {
+                let path_first_va =
+                    ntosbase.clone() + self.pdb_store.get_offset_r("MmNonPagedPoolStart")?;
+                let path_last_va =
+                    ntosbase.clone() + self.pdb_store.get_offset_r("MiNonPagedPoolEnd")?;
+                let first_va = Address::from_base(self.deref_addr_new(path_first_va.address()));
+                let last_va = Address::from_base(self.deref_addr_new(path_last_va.address()));
+                Ok([first_va, last_va])
+            }
+            _ => Err("Windows version for nonpaged pool algorithm is not implemented".into()),
+        }
+    }
+}
--- a/src/ioctl_protocol.rs
+++ b/src/ioctl_protocol.rs
@ -1,121 +1,184 @@
-use crate::pdb_store::PdbStore;
-use crate::windows::WindowsVersion;
-
-#[repr(C)]
-#[derive(Debug, Copy, Clone)]
-pub struct OffsetData {
-    eprocess_name_offset: u64,
-    eprocess_link_offset: u64,
-    list_blink_offset: u64,
-    process_head_offset: u64,
-    mistate_offset: u64,
-    hardware_offset: u64,
-    system_node_offset: u64,
-    first_va_offset: u64,
-    last_va_offset: u64,
-    large_page_table_offset: u64,
-    large_page_size_offset: u64,
-    pool_chunk_size: u64,
-}
-
-// TODO: Move to WindowsScanStrategy and return the corresponding struct base on Windows version
-impl OffsetData {
-    pub fn new(pdb_store: &PdbStore, windows_version: WindowsVersion) -> Self {
-        match windows_version {
-            WindowsVersion::Windows10FastRing => Self {
-                eprocess_name_offset: pdb_store.get_offset("_EPROCESS.ImageFileName").unwrap_or(0u64),
-                eprocess_link_offset: pdb_store.get_offset("_EPROCESS.ActiveProcessLinks").unwrap_or(0u64),
-                list_blink_offset: pdb_store.get_offset("_LIST_ENTRY.Blink").unwrap_or(0u64),
-                process_head_offset: pdb_store.get_offset("PsActiveProcessHead").unwrap_or(0u64),
-                mistate_offset: pdb_store.get_offset("MiState").unwrap_or(0u64),
-                hardware_offset: pdb_store.get_offset("_MI_SYSTEM_INFORMATION.Hardware").unwrap_or(0u64),
-                system_node_offset: pdb_store.get_offset("_MI_HARDWARE_STATE.SystemNodeNonPagedPool").unwrap_or(0u64),
-                first_va_offset: pdb_store.get_offset("_MI_SYSTEM_NODE_NONPAGED_POOL.NonPagedPoolFirstVa").unwrap_or(0u64),
-                last_va_offset: pdb_store.get_offset("_MI_SYSTEM_NODE_NONPAGED_POOL.NonPagedPoolLastVa").unwrap_or(0u64),
-                large_page_table_offset: pdb_store.get_offset("PoolBigPageTable").unwrap_or(0u64),
-                large_page_size_offset: pdb_store.get_offset("PoolBigPageTableSize").unwrap_or(0u64),
-                pool_chunk_size: pdb_store.get_offset("_POOL_HEADER.struct_size").unwrap_or(0u64),
-            },
-            WindowsVersion::Windows10_2019 |
-            WindowsVersion::Windows10_2018 => Self {
-                eprocess_name_offset: pdb_store.get_offset("_EPROCESS.ImageFileName").unwrap_or(0u64),
-                eprocess_link_offset: pdb_store.get_offset("_EPROCESS.ActiveProcessLinks").unwrap_or(0u64),
-                list_blink_offset: pdb_store.get_offset("_LIST_ENTRY.Blink").unwrap_or(0u64),
-                process_head_offset: pdb_store.get_offset("PsActiveProcessHead").unwrap_or(0u64),
-                mistate_offset: pdb_store.get_offset("MiState").unwrap_or(0u64),
-                hardware_offset: pdb_store.get_offset("_MI_SYSTEM_INFORMATION.Hardware").unwrap_or(0u64),
-                system_node_offset: pdb_store.get_offset("_MI_HARDWARE_STATE.SystemNodeInformation").unwrap_or(0u64),
-                first_va_offset: pdb_store.get_offset("_MI_SYSTEM_NODE_INFORMATION.NonPagedPoolFirstVa").unwrap_or(0u64),
-                last_va_offset: pdb_store.get_offset("_MI_SYSTEM_NODE_INFORMATION.NonPagedPoolLastVa").unwrap_or(0u64),
-                large_page_table_offset: pdb_store.get_offset("PoolBigPageTable").unwrap_or(0u64),
-                large_page_size_offset: pdb_store.get_offset("PoolBigPageTableSize").unwrap_or(0u64),
-                pool_chunk_size: pdb_store.get_offset("_POOL_HEADER.struct_size").unwrap_or(0u64),
-            },
-            // TODO: Add other version of Windows here
-            // TODO: Warn user of unknown windows version, because BSOD will occur
-            _ => Self {
-                eprocess_name_offset: 0u64,
-                eprocess_link_offset: 0u64,
-                list_blink_offset: 0u64,
-                process_head_offset: 0u64,
-                mistate_offset: 0u64,
-                hardware_offset: 0u64,
-                system_node_offset: 0u64,
-                first_va_offset: 0u64,
-                last_va_offset: 0u64,
-                large_page_table_offset: 0u64,
-                large_page_size_offset: 0u64,
-                pool_chunk_size: 0u64,
-            }
-        }
-    }
-}
-
-#[repr(C)]
-#[derive(Debug, Copy, Clone)]
-pub struct DerefAddr {
-    pub addr: u64,
-    pub size: u64
-}
-
-#[repr(C)]
-#[derive(Debug, Copy, Clone)]
-pub struct ScanPoolData {
-    pub start: u64,
-    pub end: u64,
-    pub tag: u32
-}
-
-impl ScanPoolData{
-    pub fn new(arr: &[u64; 2], tag: &[u8; 4]) -> Self {
-        Self {
-            start: arr[0],
-            end: arr[1],
-            tag: u32::from_le_bytes(*tag)
-        }
-    }
-}
-
-#[repr(C)]
-#[derive(Debug, Copy, Clone)]
-pub struct HideProcess {
-    pub name: [u8; 15],
-    pub size: u64
-}
-
-#[repr(C)]
-pub union InputData {
-    pub offset_value: OffsetData,
-    pub deref_addr: DerefAddr,
-    pub scan_range: ScanPoolData,
-    pub hide_process: HideProcess,
-}
-
-#[repr(C)]
-#[derive(Debug, Copy, Clone)]
-pub struct Nothing; // for empty data
-
-#[repr(C)]
-pub union OutputData {
-    pub nothing: Nothing,
-}
+use crate::pdb_store::PdbStore;
+use crate::windows::WindowsVersion;
+
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct OffsetData {
+    eprocess_name_offset: u64,
+    eprocess_link_offset: u64,
+    list_blink_offset: u64,
+    process_head_offset: u64,
+    mistate_offset: u64,
+    hardware_offset: u64,
+    system_node_offset: u64,
+    first_va_offset: u64,
+    last_va_offset: u64,
+    large_page_table_offset: u64,
+    large_page_size_offset: u64,
+    pool_chunk_size: u64,
+}
+
+// TODO: Move to WindowsScanStrategy and return the corresponding struct base on Windows version
+impl OffsetData {
+    pub fn new(pdb_store: &PdbStore, windows_version: WindowsVersion) -> Self {
+        // TODO: Fix the backend so that only neccessary fields are used
+        // This is too much, most of the functionality has been move to the frontend
+        match windows_version {
+            WindowsVersion::WindowsFastRing => Self {
+                eprocess_name_offset: pdb_store
+                    .get_offset("_EPROCESS.ImageFileName")
+                    .unwrap_or(0u64),
+                eprocess_link_offset: pdb_store
+                    .get_offset("_EPROCESS.ActiveProcessLinks")
+                    .unwrap_or(0u64),
+                list_blink_offset: pdb_store.get_offset("_LIST_ENTRY.Blink").unwrap_or(0u64),
+                process_head_offset: pdb_store.get_offset("PsActiveProcessHead").unwrap_or(0u64),
+                mistate_offset: pdb_store.get_offset("MiState").unwrap_or(0u64),
+                hardware_offset: pdb_store
+                    .get_offset("_MI_SYSTEM_INFORMATION.Hardware")
+                    .unwrap_or(0u64),
+                system_node_offset: pdb_store
+                    .get_offset("_MI_HARDWARE_STATE.SystemNodeNonPagedPool")
+                    .unwrap_or(0u64),
+                first_va_offset: pdb_store
+                    .get_offset("_MI_SYSTEM_NODE_NONPAGED_POOL.NonPagedPoolFirstVa")
+                    .unwrap_or(0u64),
+                last_va_offset: pdb_store
+                    .get_offset("_MI_SYSTEM_NODE_NONPAGED_POOL.NonPagedPoolLastVa")
+                    .unwrap_or(0u64),
+                large_page_table_offset: pdb_store.get_offset("PoolBigPageTable").unwrap_or(0u64),
+                large_page_size_offset: pdb_store
+                    .get_offset("PoolBigPageTableSize")
+                    .unwrap_or(0u64),
+                pool_chunk_size: pdb_store
+                    .get_offset("_POOL_HEADER.struct_size")
+                    .unwrap_or(0u64),
+            },
+            WindowsVersion::Windows10_2019 | WindowsVersion::Windows10_2018 => Self {
+                eprocess_name_offset: pdb_store
+                    .get_offset("_EPROCESS.ImageFileName")
+                    .unwrap_or(0u64),
+                eprocess_link_offset: pdb_store
+                    .get_offset("_EPROCESS.ActiveProcessLinks")
+                    .unwrap_or(0u64),
+                list_blink_offset: pdb_store.get_offset("_LIST_ENTRY.Blink").unwrap_or(0u64),
+                process_head_offset: pdb_store.get_offset("PsActiveProcessHead").unwrap_or(0u64),
+                mistate_offset: pdb_store.get_offset("MiState").unwrap_or(0u64),
+                hardware_offset: pdb_store
+                    .get_offset("_MI_SYSTEM_INFORMATION.Hardware")
+                    .unwrap_or(0u64),
+                system_node_offset: pdb_store
+                    .get_offset("_MI_HARDWARE_STATE.SystemNodeInformation")
+                    .unwrap_or(0u64),
+                first_va_offset: pdb_store
+                    .get_offset("_MI_SYSTEM_NODE_INFORMATION.NonPagedPoolFirstVa")
+                    .unwrap_or(0u64),
+                last_va_offset: pdb_store
+                    .get_offset("_MI_SYSTEM_NODE_INFORMATION.NonPagedPoolLastVa")
+                    .unwrap_or(0u64),
+                large_page_table_offset: pdb_store.get_offset("PoolBigPageTable").unwrap_or(0u64),
+                large_page_size_offset: pdb_store
+                    .get_offset("PoolBigPageTableSize")
+                    .unwrap_or(0u64),
+                pool_chunk_size: pdb_store
+                    .get_offset("_POOL_HEADER.struct_size")
+                    .unwrap_or(0u64),
+            },
+            WindowsVersion::Windows7 => Self {
+                eprocess_name_offset: pdb_store
+                    .get_offset("_EPROCESS.ImageFileName")
+                    .unwrap_or(0u64),
+                eprocess_link_offset: pdb_store
+                    .get_offset("_EPROCESS.ActiveProcessLinks")
+                    .unwrap_or(0u64),
+                list_blink_offset: pdb_store.get_offset("_LIST_ENTRY.Blink").unwrap_or(0u64),
+                process_head_offset: pdb_store.get_offset("PsActiveProcessHead").unwrap_or(0u64),
+                mistate_offset: pdb_store.get_offset("MiState").unwrap_or(0u64),
+                hardware_offset: pdb_store
+                    .get_offset("_MI_SYSTEM_INFORMATION.Hardware")
+                    .unwrap_or(0u64),
+                system_node_offset: pdb_store
+                    .get_offset("_MI_HARDWARE_STATE.SystemNodeInformation")
+                    .unwrap_or(0u64),
+                first_va_offset: pdb_store
+                    .get_offset("_MI_SYSTEM_NODE_INFORMATION.NonPagedPoolFirstVa")
+                    .unwrap_or(0u64),
+                last_va_offset: pdb_store
+                    .get_offset("_MI_SYSTEM_NODE_INFORMATION.NonPagedPoolLastVa")
+                    .unwrap_or(0u64),
+                large_page_table_offset: pdb_store.get_offset("PoolBigPageTable").unwrap_or(0u64),
+                large_page_size_offset: pdb_store
+                    .get_offset("PoolBigPageTableSize")
+                    .unwrap_or(0u64),
+                pool_chunk_size: pdb_store
+                    .get_offset("_POOL_HEADER.struct_size")
+                    .unwrap_or(0u64),
+            },
+            // TODO: Add other version of Windows here
+            // TODO: Warn user of unknown windows version, because BSOD will occur
+            _ => Self {
+                eprocess_name_offset: 0u64,
+                eprocess_link_offset: 0u64,
+                list_blink_offset: 0u64,
+                process_head_offset: 0u64,
+                mistate_offset: 0u64,
+                hardware_offset: 0u64,
+                system_node_offset: 0u64,
+                first_va_offset: 0u64,
+                last_va_offset: 0u64,
+                large_page_table_offset: 0u64,
+                large_page_size_offset: 0u64,
+                pool_chunk_size: 0u64,
+            },
+        }
+    }
+}
+
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct DerefAddr {
+    pub addr: u64,
+    pub size: u64,
+}
+
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct ScanPoolData {
+    pub start: u64,
+    pub end: u64,
+    pub tag: u32,
+}
+
+impl ScanPoolData {
+    pub fn new(arr: &[u64; 2], tag: &[u8; 4]) -> Self {
+        Self {
+            start: arr[0],
+            end: arr[1],
+            tag: u32::from_le_bytes(*tag),
+        }
+    }
+}
+
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct HideProcess {
+    pub name: [u8; 15],
+    pub size: u64,
+}
+
+#[repr(C)]
+pub union InputData {
+    pub offset_value: OffsetData,
+    pub deref_addr: DerefAddr,
+    pub scan_range: ScanPoolData,
+    pub hide_process: HideProcess,
+}
+
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct Nothing; // for empty data
+
+#[repr(C)]
+pub union OutputData {
+    pub nothing: Nothing,
+}
--- a/src/lib.rs
+++ b/src/lib.rs
@ -1,288 +1,594 @@
-extern crate chrono;
-extern crate app_dirs;
-
-pub mod pdb_store;
-pub mod windows;
-pub mod ioctl_protocol;
-pub mod driver_state;
-pub mod address;
-
-use std::error::Error;
-use std::str::{from_utf8};
-use serde_json::{json, Value};
-use driver_state::DriverState;
-use address::Address;
-
-type BoxResult<T> = Result<T, Box<dyn Error>>;
-
-pub fn scan_eprocess(driver: &DriverState) -> BoxResult<Vec<Value>> {
-    let mut result: Vec<Value> = Vec::new();
-    driver.scan_pool(b"Proc", "_EPROCESS", |pool_addr, header, data_addr| {
-        let chunk_size = (header[2] as u64) * 16u64;
-
-        let eprocess_size = driver.pdb_store.get_offset_r("_EPROCESS.struct_size")?;
-
-        let eprocess_valid_start = &data_addr;
-        let eprocess_valid_end = (pool_addr.clone() + chunk_size) - eprocess_size;
-        let mut try_eprocess_ptr = eprocess_valid_start.clone();
-
-        while try_eprocess_ptr <= eprocess_valid_end {
-            let create_time: u64 = driver.decompose(&try_eprocess_ptr, "_EPROCESS.CreateTime")?;
-            if driver.windows_ffi.valid_process_time(create_time) {
-                break;
-            }
-            try_eprocess_ptr += 0x4;        // search exhaustively
-        }
-        if try_eprocess_ptr > eprocess_valid_end {
-            return Ok(false);
-        }
-
-        let eprocess_ptr = &try_eprocess_ptr;
-
-        let pid: u64 = driver.decompose(eprocess_ptr, "_EPROCESS.UniqueProcessId")?;
-        let ppid: u64 = driver.decompose(eprocess_ptr, "_EPROCESS.InheritedFromUniqueProcessId")?;
-        let image_name: Vec<u8> = driver.decompose_array(eprocess_ptr, "_EPROCESS.ImageFileName", 15)?;
-        let unicode_str_ptr = driver.address_of(eprocess_ptr, "_EPROCESS.ImageFilePointer.FileName")?;
-
-        let eprocess_name =
-            if let Ok(name) = from_utf8(&image_name) {
-                name.to_string().trim_end_matches(char::from(0)).to_string()
-            } else {
-                "".to_string()
-            };
-        let binary_path = driver.get_unicode_string(unicode_str_ptr, true)
-                          .unwrap_or("".to_string());
-
-        result.push(json!({
-            "pool": format!("0x{:x}", pool_addr.address()),
-            "address": format!("0x{:x}", eprocess_ptr.address()),
-            "type": "_EPROCESS",
-            "pid": pid,
-            "ppid": ppid,
-            "name": eprocess_name,
-            "path": binary_path
-        }));
-        Ok(true)
-    })?;
-    Ok(result)
-}
-
-pub fn scan_file(driver: &DriverState) -> BoxResult<Vec<Value>> {
-    let mut result: Vec<Value> = Vec::new();
-
-    driver.scan_pool(b"File", "_FILE_OBJECT", |pool_addr, header, data_addr| {
-        let chunk_size = (header[2] as u64) * 16u64;
-
-        let fob_size = driver.pdb_store.get_offset_r("_FILE_OBJECT.struct_size")?;
-        let valid_end = (pool_addr.clone() + chunk_size) - fob_size;
-        let mut try_ptr = data_addr;
-
-        while try_ptr <= valid_end {
-            let ftype: u16 = driver.decompose(&try_ptr, "_FILE_OBJECT.Type")?;
-            let size: u16 = driver.decompose(&try_ptr, "_FILE_OBJECT.Size")?;
-            if (size as u64) == fob_size && ftype == 5u16 {
-                break;
-            }
-            try_ptr += 0x4;        // search exhaustively
-        }
-        if try_ptr > valid_end {
-            return Ok(false);
-        }
-
-        let fob_addr = &try_ptr;
-        let read_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.ReadAccess")?;
-        let write_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.WriteAccess")?;
-        let delete_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.DeleteAccess")?;
-        let share_read_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.SharedRead")?;
-        let share_write_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.SharedWrite")?;
-        let share_delete_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.SharedDelete")?;
-        let filename_ptr = driver.address_of(fob_addr, "_FILE_OBJECT.FileName")?;
-        let devicename_ptr: u64 = driver.address_of(fob_addr, "_FILE_OBJECT.DeviceObject.DriverObject.DriverName")?;
-        let hardware_ptr: u64 = driver.decompose(fob_addr, "_FILE_OBJECT.DeviceObject.DriverObject.HardwareDatabase")?;
-
-        let filename =
-            if read_ok == 0 {
-                "[NOT READABLE]".to_string()
-            }
-            else if let Ok(n) = driver.get_unicode_string(filename_ptr, true) {
-                n
-            }
-            else {
-                "[NOT A VALID _UNICODE_STRING]".to_string()
-            };
-        let devicename = driver.get_unicode_string(devicename_ptr, true)
-                         .unwrap_or("".to_string());
-        let hardware = driver.get_unicode_string(hardware_ptr, true)
-                       .unwrap_or("".to_string());
-        result.push(json!({
-            "pool": format!("0x{:x}", pool_addr.address()),
-            "address": format!("0x{:x}", fob_addr.address()),
-            "type": "_FILE_OBJECT",
-            "path": filename,
-            "device": devicename,
-            "hardware": hardware,
-            "access": {
-                "r": read_ok == 1,
-                "w": write_ok == 1,
-                "d": delete_ok == 1,
-                "R": share_read_ok == 1,
-                "W": share_write_ok == 1,
-                "D": share_delete_ok == 1
-            }
-        }));
-        Ok(true)
-    })?;
-
-    Ok(result)
-}
-
-pub fn scan_ethread(driver: &DriverState) -> BoxResult<Vec<Value>> {
-    let mut result: Vec<Value> = Vec::new();
-
-    driver.scan_pool(b"Thre", "_ETHREAD", |pool_addr, header, data_addr| {
-        let chunk_size = (header[2] as u64) * 16u64;
-
-        let ethread_size = driver.pdb_store.get_offset_r("_ETHREAD.struct_size")?;
-        let ethread_valid_start = &data_addr;
-        let ethread_valid_end = (pool_addr.clone() + chunk_size) - ethread_size;
-        let mut try_ethread_ptr = ethread_valid_start.clone();
-
-        while try_ethread_ptr <= ethread_valid_end {
-            let create_time: u64 = driver.decompose(&try_ethread_ptr, "_ETHREAD.CreateTime")?;
-            if driver.windows_ffi.valid_process_time(create_time) {
-                break;
-            }
-            try_ethread_ptr += 0x4;        // search exhaustively
-        }
-        if try_ethread_ptr > ethread_valid_end {
-            return Ok(false);
-        }
-
-        let ethread_ptr = &try_ethread_ptr;
-
-        let pid: u64 = driver.decompose(ethread_ptr, "_ETHREAD.Cid.UniqueProcess")?;
-        let tid: u64 = driver.decompose(ethread_ptr, "_ETHREAD.Cid.UniqueThread")?;
-        let unicode_str_ptr: u64 = driver.address_of(ethread_ptr, "_ETHREAD.ThreadName")?;
-
-        let thread_name =
-            if let Ok(name) = driver.get_unicode_string(unicode_str_ptr, true) {
-                name
-            }
-            else {
-                "".to_string()
-            };
-
-        result.push(json!({
-            "pool": format!("0x{:x}", pool_addr.address()),
-            "address": format!("0x{:x}", ethread_ptr.address()),
-            "type": "_ETHREAD",
-            "pid": pid,
-            "tid": tid,
-            "name": thread_name
-        }));
-        Ok(true)
-    })?;
-
-    Ok(result)
-}
-
-// Unstable, do not use
-pub fn scan_mutant(driver: &DriverState) -> BoxResult<Vec<Value>> {
-    let mut result: Vec<Value> = Vec::new();
-
-    let ntosbase = driver.get_kernel_base();
-    let [start, end] = driver.get_nonpaged_range(&ntosbase)?;
-
-    driver.scan_pool(b"Muta", "_KMUTANT", |pool_addr, header, data_addr| {
-        let chunk_size = (header[2] as u64) * 16u64;
-
-        let kmutant_size = driver.pdb_store.get_offset_r("_KMUTANT.struct_size")?;
-
-        let kmutant_valid_start = data_addr;
-        let kmutant_valid_end = (pool_addr.clone() + chunk_size) - kmutant_size;
-        let mut try_kmutant_ptr = kmutant_valid_start.clone();
-
-        while try_kmutant_ptr <= kmutant_valid_end {
-            // TODO: Stronger constrain
-            let kthread_ptr = driver.address_of(&try_kmutant_ptr, "_KMUTANT.OwnerThread")?;
-            if kthread_ptr > start.address() && kthread_ptr < end.address() {
-                break;
-            }
-            try_kmutant_ptr += 0x4;        // search exhaustively
-        }
-        if try_kmutant_ptr > kmutant_valid_end {
-            return Ok(false);
-        }
-
-        let kmutant_ptr = try_kmutant_ptr;
-        let ethread_ptr = Address::from_base(driver.address_of(&kmutant_ptr, "_KMUTANT.OwnerThread")?);
-
-        let pid: u64 = driver.decompose(&ethread_ptr, "_ETHREAD.Cid.UniqueProcess")?;
-        let tid: u64 = driver.decompose(&ethread_ptr, "_ETHREAD.Cid.UniqueThread")?;
-        let unicode_str_ptr: u64 = driver.address_of(&ethread_ptr, "_ETHREAD.ThreadName")?;
-
-        let thread_name =
-            if let Ok(name) = driver.get_unicode_string(unicode_str_ptr, true) {
-                name
-            }
-            else {
-                "".to_string()
-            };
-
-        result.push(json!({
-            "pool": format!("0x{:x}", pool_addr.address()),
-            "address": format!("0x{:x}", ethread_ptr.address()),
-            "type": "_KMUTANT",
-            "pid": pid,
-            "tid": tid,
-            "name": thread_name
-        }));
-        Ok(true)
-    })?;
-
-    Ok(result)
-}
-
-pub fn scan_driver(driver: &DriverState) -> BoxResult<Vec<Value>> {
-    let mut result: Vec<Value> = Vec::new();
-
-    driver.scan_pool(b"Driv", "_DRIVER_OBJECT", |pool_addr, header, data_addr| {
-        let chunk_size = (header[2] as u64) * 16u64;
-
-        let dob_size = driver.pdb_store.get_offset_r("_DRIVER_OBJECT.struct_size")?;
-        let valid_end = (pool_addr.clone() + chunk_size) - dob_size;
-        let mut try_ptr = data_addr;
-
-        while try_ptr <= valid_end {
-            // No documentation on type constrain
-            // let ftype: u16 = driver.decompose(&try_ptr, "_DRIVER_OBJECT.Type")?;
-            let size: u16 = driver.decompose(&try_ptr, "_DRIVER_OBJECT.Size")?;
-            if (size as u64) == dob_size /* && ftype == 5u16 */ {
-                break;
-            }
-            try_ptr += 0x4;        // search exhaustively
-        }
-        if try_ptr > valid_end {
-            return Ok(false);
-        }
-        let dob_addr = &try_ptr;
-
-        let devicename_ptr = driver.address_of(dob_addr, "_DRIVER_OBJECT.DriverName")?;
-        let hardware_ptr: u64 = driver.decompose(dob_addr, "_DRIVER_OBJECT.HardwareDatabase")?;
-
-        let devicename = driver.get_unicode_string(devicename_ptr, true)
-                         .unwrap_or("".to_string());
-        let hardware = driver.get_unicode_string(hardware_ptr, true)
-                       .unwrap_or("".to_string());
-        result.push(json!({
-            "pool": format!("0x{:x}", pool_addr.address()),
-            "address": format!("0x{:x}", dob_addr.address()),
-            "type": "_DRIVER_OBJECT",
-            "device": devicename,
-            "hardware": hardware
-        }));
-        Ok(true)
-    })?;
-
-    Ok(result)
-}
+extern crate app_dirs;
+extern crate chrono;
+
+pub mod address;
+pub mod commands;
+pub mod driver_state;
+pub mod ioctl_protocol;
+pub mod object;
+pub mod pdb_store;
+pub mod windows;
+
+use app_dirs::AppInfo;
+use chrono::{DateTime, Local, TimeZone};
+use serde_json::{json, Value};
+use std::error::Error;
+
+use address::Address;
+use driver_state::DriverState;
+use object::*;
+
+type BoxResult<T> = Result<T, Box<dyn Error>>;
+
+pub const APP_INFO: AppInfo = AppInfo {
+    name: "lpus",
+    author: "nganhkhoa",
+};
+
+pub fn to_epoch(filetime: u64) -> DateTime<Local> {
+    // return seconds from epoch
+    let windows_epoch_diff = 11_644_473_600_000 * 10_000;
+    if filetime < windows_epoch_diff {
+        return Local.timestamp(0, 0);
+    }
+    let filetime_epoch = (filetime - windows_epoch_diff) / 10_000_000;
+    Local.timestamp(filetime_epoch as i64, 0)
+}
+
+pub fn get_irp_name(idx: usize) -> String {
+    let irp_names = vec![
+        "IRP_MJ_CREATE",
+        "IRP_MJ_CREATE_NAMED_PIPE",
+        "IRP_MJ_CLOSE",
+        "IRP_MJ_READ",
+        "IRP_MJ_WRITE",
+        "IRP_MJ_QUERY_INFORMATION",
+        "IRP_MJ_SET_INFORMATION",
+        "IRP_MJ_QUERY_EA",
+        "IRP_MJ_SET_EA",
+        "IRP_MJ_FLUSH_BUFFERS",
+        "IRP_MJ_QUERY_VOLUME_INFORMATION",
+        "IRP_MJ_SET_VOLUME_INFORMATION",
+        "IRP_MJ_DIRECTORY_CONTROL",
+        "IRP_MJ_FILE_SYSTEM_CONTROL",
+        "IRP_MJ_DEVICE_CONTROL",
+        "IRP_MJ_INTERNAL_DEVICE_CONTROL",
+        "IRP_MJ_SHUTDOWN",
+        "IRP_MJ_LOCK_CONTROL",
+        "IRP_MJ_CLEANUP",
+        "IRP_MJ_CREATE_MAILSLOT",
+        "IRP_MJ_QUERY_SECURITY",
+        "IRP_MJ_SET_SECURITY",
+        "IRP_MJ_POWER",
+        "IRP_MJ_SYSTEM_CONTROL",
+        "IRP_MJ_DEVICE_CHANGE",
+        "IRP_MJ_QUERY_QUOTA",
+        "IRP_MJ_SET_QUOTA",
+        "IRP_MJ_PNP",
+    ]
+    .iter()
+    .map(|x| x.to_string())
+    .collect::<Vec<String>>();
+
+    if let Some(name) = irp_names.get(idx) {
+        name.clone()
+    } else {
+        "UNKNOWN".to_string()
+    }
+}
+
+fn get_device_type(typ: u32) -> String {
+    match typ {
+        0x00000027 => "FILE_DEVICE_8042_PORT",
+        0x00000032 => "FILE_DEVICE_ACPI",
+        0x00000029 => "FILE_DEVICE_BATTERY",
+        0x00000001 => "FILE_DEVICE_BEEP",
+        0x0000002a => "FILE_DEVICE_BUS_EXTENDER",
+        0x00000002 => "FILE_DEVICE_CD_ROM",
+        0x00000003 => "FILE_DEVICE_CD_ROM_FILE_SYSTEM",
+        0x00000030 => "FILE_DEVICE_CHANGER",
+        0x00000004 => "FILE_DEVICE_CONTROLLER",
+        0x00000005 => "FILE_DEVICE_DATALINK",
+        0x00000006 => "FILE_DEVICE_DFS",
+        0x00000035 => "FILE_DEVICE_DFS_FILE_SYSTEM",
+        0x00000036 => "FILE_DEVICE_DFS_VOLUME",
+        0x00000007 => "FILE_DEVICE_DISK",
+        0x00000008 => "FILE_DEVICE_DISK_FILE_SYSTEM",
+        0x00000033 => "FILE_DEVICE_DVD",
+        0x00000009 => "FILE_DEVICE_FILE_SYSTEM",
+        0x0000003a => "FILE_DEVICE_FIPS",
+        0x00000034 => "FILE_DEVICE_FULLSCREEN_VIDEO",
+        0x0000000a => "FILE_DEVICE_INPORT_PORT",
+        0x0000000b => "FILE_DEVICE_KEYBOARD",
+        0x0000002f => "FILE_DEVICE_KS",
+        0x00000039 => "FILE_DEVICE_KSEC",
+        0x0000000c => "FILE_DEVICE_MAILSLOT",
+        0x0000002d => "FILE_DEVICE_MASS_STORAGE",
+        0x0000000d => "FILE_DEVICE_MIDI_IN",
+        0x0000000e => "FILE_DEVICE_MIDI_OUT",
+        0x0000002b => "FILE_DEVICE_MODEM",
+        0x0000000f => "FILE_DEVICE_MOUSE",
+        0x00000010 => "FILE_DEVICE_MULTI_UNC_PROVIDER",
+        0x00000011 => "FILE_DEVICE_NAMED_PIPE",
+        0x00000012 => "FILE_DEVICE_NETWORK",
+        0x00000013 => "FILE_DEVICE_NETWORK_BROWSER",
+        0x00000014 => "FILE_DEVICE_NETWORK_FILE_SYSTEM",
+        0x00000028 => "FILE_DEVICE_NETWORK_REDIRECTOR",
+        0x00000015 => "FILE_DEVICE_NULL",
+        0x00000016 => "FILE_DEVICE_PARALLEL_PORT",
+        0x00000017 => "FILE_DEVICE_PHYSICAL_NETCARD",
+        0x00000018 => "FILE_DEVICE_PRINTER",
+        0x00000019 => "FILE_DEVICE_SCANNER",
+        0x0000001c => "FILE_DEVICE_SCREEN",
+        0x00000037 => "FILE_DEVICE_SERENUM",
+        0x0000001a => "FILE_DEVICE_SERIAL_MOUSE_PORT",
+        0x0000001b => "FILE_DEVICE_SERIAL_PORT",
+        0x00000031 => "FILE_DEVICE_SMARTCARD",
+        0x0000002e => "FILE_DEVICE_SMB",
+        0x0000001d => "FILE_DEVICE_SOUND",
+        0x0000001e => "FILE_DEVICE_STREAMS",
+        0x0000001f => "FILE_DEVICE_TAPE",
+        0x00000020 => "FILE_DEVICE_TAPE_FILE_SYSTEM",
+        0x00000038 => "FILE_DEVICE_TERMSRV",
+        0x00000021 => "FILE_DEVICE_TRANSPORT",
+        0x00000022 => "FILE_DEVICE_UNKNOWN",
+        0x0000002c => "FILE_DEVICE_VDM",
+        0x00000023 => "FILE_DEVICE_VIDEO",
+        0x00000024 => "FILE_DEVICE_VIRTUAL_DISK",
+        0x00000025 => "FILE_DEVICE_WAVE_IN",
+        0x00000026 => "FILE_DEVICE_WAVE_OUT",
+        _ => "UNKNOWN",
+    }
+    .to_string()
+}
+
+pub fn scan_eprocess(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let mut result: Vec<Value> = Vec::new();
+    let tag = if driver.use_old_tag() {
+        b"Pro\xe3"
+    } else {
+        b"Proc"
+    };
+    driver.scan_pool(tag, "_EPROCESS", |pool_addr, header, data_addr| {
+        let chunk_size = (header[2] as u64) * 16u64;
+
+        let eprocess_size = driver.pdb_store.get_offset_r("_EPROCESS.struct_size")?;
+
+        let eprocess_valid_start = &data_addr;
+        let eprocess_valid_end = (pool_addr.clone() + chunk_size) - eprocess_size;
+        let mut try_eprocess_ptr = eprocess_valid_start.clone();
+
+        while try_eprocess_ptr <= eprocess_valid_end {
+            let create_time: u64 = driver.decompose(&try_eprocess_ptr, "_EPROCESS.CreateTime")?;
+            if driver.windows_ffi.valid_process_time(create_time) {
+                break;
+            }
+            try_eprocess_ptr += 0x4; // search exhaustively
+        }
+        if try_eprocess_ptr > eprocess_valid_end {
+            return Ok(false);
+        }
+
+        result.push(make_eprocess(driver, &try_eprocess_ptr)?);
+        Ok(true)
+    })?;
+    Ok(result)
+}
+
+pub fn scan_file(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let mut result: Vec<Value> = Vec::new();
+
+    let tag = if driver.use_old_tag() {
+        b"Fil\xe5"
+    } else {
+        b"File"
+    };
+    driver.scan_pool(tag, "_FILE_OBJECT", |pool_addr, header, data_addr| {
+        let chunk_size = (header[2] as u64) * 16u64;
+
+        let fob_size = driver.pdb_store.get_offset_r("_FILE_OBJECT.struct_size")?;
+        let valid_end = (pool_addr.clone() + chunk_size) - fob_size;
+        let mut try_ptr = data_addr;
+
+        while try_ptr <= valid_end {
+            let ftype: u16 = driver.decompose(&try_ptr, "_FILE_OBJECT.Type")?;
+            let size: u16 = driver.decompose(&try_ptr, "_FILE_OBJECT.Size")?;
+            if (size as u64) == fob_size && ftype == 5u16 {
+                break;
+            }
+            try_ptr += 0x4; // search exhaustively
+        }
+        if try_ptr > valid_end {
+            return Ok(false);
+        }
+
+        let fob_addr = &try_ptr;
+        let read_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.ReadAccess")?;
+        let write_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.WriteAccess")?;
+        let delete_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.DeleteAccess")?;
+        let share_read_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.SharedRead")?;
+        let share_write_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.SharedWrite")?;
+        let share_delete_ok: u8 = driver.decompose(fob_addr, "_FILE_OBJECT.SharedDelete")?;
+        let filename_ptr = driver.address_of(fob_addr, "_FILE_OBJECT.FileName")?;
+        let devicename_ptr: u64 = driver.address_of(
+            fob_addr,
+            "_FILE_OBJECT.DeviceObject.DriverObject.DriverName",
+        )?;
+        let hardware_ptr: u64 = driver.decompose(
+            fob_addr,
+            "_FILE_OBJECT.DeviceObject.DriverObject.HardwareDatabase",
+        )?;
+
+        let filename = if read_ok == 0 {
+            "[NOT READABLE]".to_string()
+        } else if let Ok(n) = driver.get_unicode_string(filename_ptr) {
+            n
+        } else {
+            "[NOT A VALID _UNICODE_STRING]".to_string()
+        };
+        let devicename = driver
+            .get_unicode_string(devicename_ptr)
+            .unwrap_or("".to_string());
+        let hardware = driver
+            .get_unicode_string(hardware_ptr)
+            .unwrap_or("".to_string());
+        result.push(json!({
+            "pool": format!("0x{:x}", pool_addr.address()),
+            "address": format!("0x{:x}", fob_addr.address()),
+            "type": "_FILE_OBJECT",
+            "path": filename,
+            "device": devicename,
+            "hardware": hardware,
+            "access": {
+                "r": read_ok == 1,
+                "w": write_ok == 1,
+                "d": delete_ok == 1,
+                "R": share_read_ok == 1,
+                "W": share_write_ok == 1,
+                "D": share_delete_ok == 1
+            }
+        }));
+        Ok(true)
+    })?;
+
+    Ok(result)
+}
+
+pub fn scan_ethread(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let mut result: Vec<Value> = Vec::new();
+
+    let tag = if driver.use_old_tag() {
+        b"Thr\xe5"
+    } else {
+        b"Thre"
+    };
+    driver.scan_pool(tag, "_ETHREAD", |pool_addr, header, data_addr| {
+        let chunk_size = (header[2] as u64) * 16u64;
+
+        let object_header_size = driver
+            .pdb_store
+            .get_offset_r("_OBJECT_HEADER.struct_size")?;
+        let header_size = driver.pdb_store.get_offset_r("_POOL_HEADER.struct_size")?;
+        let ethread_size = driver.pdb_store.get_offset_r("_ETHREAD.struct_size")?;
+        let ethread_valid_start = &data_addr;
+        let ethread_valid_end = (pool_addr.clone() + chunk_size) - ethread_size;
+        let mut try_ethread_ptr = ethread_valid_start.clone();
+
+        if chunk_size == header_size + object_header_size + ethread_size {
+            try_ethread_ptr = ethread_valid_end.clone();
+        } else {
+            while try_ethread_ptr <= ethread_valid_end {
+                let create_time: u64 = driver.decompose(&try_ethread_ptr, "_ETHREAD.CreateTime")?;
+                if driver.windows_ffi.valid_process_time(create_time) {
+                    break;
+                }
+                try_ethread_ptr += 0x4; // search exhaustively
+            }
+            if try_ethread_ptr > ethread_valid_end {
+                return Ok(false);
+            }
+        }
+
+        result.push(make_ethread(driver, &try_ethread_ptr)?);
+        Ok(true)
+    })?;
+
+    Ok(result)
+}
+
+// Unstable, do not use
+// pub fn scan_mutant(driver: &DriverState) -> BoxResult<Vec<Value>> {
+//     let mut result: Vec<Value> = Vec::new();
+//
+//     let ntosbase = driver.get_kernel_base();
+//     let [start, end] = driver.get_nonpaged_range(&ntosbase)?;
+//
+//     let tag =
+//         if driver.use_old_tag() { b"Mut\xe1" }
+//         else { b"Muta" };
+//     driver.scan_pool(tag, "_KMUTANT", |pool_addr, header, data_addr| {
+//         let chunk_size = (header[2] as u64) * 16u64;
+//
+//         let kmutant_size = driver.pdb_store.get_offset_r("_KMUTANT.struct_size")?;
+//
+//         let kmutant_valid_start = data_addr;
+//         let kmutant_valid_end = (pool_addr.clone() + chunk_size) - kmutant_size;
+//         let mut try_kmutant_ptr = kmutant_valid_start.clone();
+//
+//         while try_kmutant_ptr <= kmutant_valid_end {
+//             // TODO: Stronger constrain
+//             let kthread_ptr = driver.address_of(&try_kmutant_ptr, "_KMUTANT.OwnerThread")?;
+//             if kthread_ptr > start.address() && kthread_ptr < end.address() {
+//                 break;
+//             }
+//             try_kmutant_ptr += 0x4;        // search exhaustively
+//         }
+//         if try_kmutant_ptr > kmutant_valid_end {
+//             return Ok(false);
+//         }
+//
+//         let kmutant_ptr = try_kmutant_ptr;
+//         let ethread_ptr = Address::from_base(driver.address_of(&kmutant_ptr, "_KMUTANT.OwnerThread")?);
+//
+//         let pid: u64 = driver.decompose(&ethread_ptr, "_ETHREAD.Cid.UniqueProcess")?;
+//         let tid: u64 = driver.decompose(&ethread_ptr, "_ETHREAD.Cid.UniqueThread")?;
+//         let unicode_str_ptr: u64 = driver.address_of(&ethread_ptr, "_ETHREAD.ThreadName")?;
+//
+//         let thread_name =
+//             if let Ok(name) = driver.get_unicode_string(unicode_str_ptr) {
+//                 name
+//             }
+//             else {
+//                 "".to_string()
+//             };
+//
+//         result.push(json!({
+//             "pool": format!("0x{:x}", pool_addr.address()),
+//             "address": format!("0x{:x}", ethread_ptr.address()),
+//             "type": "_KMUTANT",
+//             "pid": pid,
+//             "tid": tid,
+//             "name": thread_name
+//         }));
+//         Ok(true)
+//     })?;
+//
+//     Ok(result)
+// }
+
+pub fn scan_driver(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let mut result: Vec<Value> = Vec::new();
+
+    let tag = if driver.use_old_tag() {
+        b"Dri\xf6"
+    } else {
+        b"Driv"
+    };
+    driver.scan_pool(tag, "_DRIVER_OBJECT", |pool_addr, header, data_addr| {
+        let chunk_size = (header[2] as u64) * 16u64;
+
+        let dob_size = driver
+            .pdb_store
+            .get_offset_r("_DRIVER_OBJECT.struct_size")?;
+        let valid_end = (pool_addr.clone() + chunk_size) - dob_size;
+        let mut try_ptr = data_addr;
+
+        while try_ptr <= valid_end {
+            // No documentation on type constrain
+            let size: u16 = driver.decompose(&try_ptr, "_DRIVER_OBJECT.Size")?;
+            if (size as u64) == dob_size {
+                break;
+            }
+            try_ptr += 0x4; // search exhaustively
+        }
+        if try_ptr > valid_end {
+            return Ok(false);
+        }
+        result.push(make_driver(driver, &try_ptr)?);
+        Ok(true)
+    })?;
+
+    Ok(result)
+}
+
+pub fn scan_kernel_module(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let mut result: Vec<Value> = Vec::new();
+
+    driver.scan_pool(
+        b"MmLd",
+        "_LDR_DATA_TABLE_ENTRY",
+        |_pool_addr, _, data_addr| {
+            // By reversing, this structure does not have any header
+            result.push(make_ldr(driver, &data_addr)?);
+            Ok(true)
+        },
+    )?;
+
+    Ok(result)
+}
+
+pub fn traverse_loadedmodulelist(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let ntosbase = driver.get_kernel_base();
+    let module_list_head = ntosbase + driver.pdb_store.get_offset_r("PsLoadedModuleList")?;
+
+    let result = make_list_entry(
+        driver,
+        module_list_head.clone(),
+        "_LDR_DATA_TABLE_ENTRY.InLoadOrderLinks",
+    )?
+    .iter()
+    .map(|x| make_ldr(driver, &x).unwrap_or(json!({})))
+    .collect();
+
+    Ok(result)
+}
+
+// dx Debugger.Utility.Collections.FromListEntry( *(nt!_LIST_ENTRY*)&(nt!PsActiveProcessHead), "nt!_EPROCESS", "ActiveProcessLinks")
+pub fn traverse_activehead(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let mut result: Vec<Value> = Vec::new();
+
+    let ntosbase = driver.get_kernel_base();
+    let process_list_head = ntosbase + driver.pdb_store.get_offset_r("PsActiveProcessHead")?;
+    let eprocess_listentry_offset = driver
+        .pdb_store
+        .get_offset_r("_EPROCESS.ActiveProcessLinks")?;
+
+    // TODO: make_list_entry
+    let mut ptr: u64 = driver.decompose(&process_list_head, "_LIST_ENTRY.Flink")?;
+    while ptr != process_list_head.address() {
+        let eprocess_ptr = Address::from_base(ptr - eprocess_listentry_offset);
+        result.push(make_eprocess(driver, &eprocess_ptr)?);
+        ptr = driver.decompose(&eprocess_ptr, "_EPROCESS.ActiveProcessLinks.Flink")?;
+    }
+
+    Ok(result)
+}
+
+// TODO: where is afd!
+// dx Debugger.Utility.Collections.FromListEntry( *(nt!_LIST_ENTRY*)&(afd!AfdEndpointListHead), "nt!_EPROCESS", "ActiveProcessLinks")
+// pub fn traverse_afdendpoint(driver: &DriverState) -> BoxResult<Vec<Value>> {
+//     let mut result: Vec<Value> = Vec::new();
+//
+//     let ntosbase = driver.get_kernel_base();
+//     let process_list_head = ntosbase + driver.pdb_store.get_offset_r("PsActiveProcessHead")?;
+//     let eprocess_listentry_offset = driver.pdb_store.get_offset_r("_EPROCESS.ActiveProcessLinks")?;
+//
+//     let mut ptr: u64 = driver.decompose(&process_list_head, "_LIST_ENTRY.Flink")?;
+//     while ptr != process_list_head.address() {
+//         let eprocess_ptr = Address::from_base(ptr - eprocess_listentry_offset);
+//
+//         let pid: u64 = driver.decompose(&eprocess_ptr, "_EPROCESS.UniqueProcessId")?;
+//         let ppid: u64 = driver.decompose(&eprocess_ptr, "_EPROCESS.InheritedFromUniqueProcessId")?;
+//         let image_name: Vec<u8> = driver.decompose_array(&eprocess_ptr, "_EPROCESS.ImageFileName", 15)?;
+//         let unicode_str_ptr = driver.address_of(&eprocess_ptr, "_EPROCESS.ImageFilePointer.FileName")?;
+//
+//         let eprocess_name =
+//             if let Ok(name) = from_utf8(&image_name) {
+//                 name.to_string().trim_end_matches(char::from(0)).to_string()
+//             } else {
+//                 "".to_string()
+//             };
+//         let binary_path = driver.get_unicode_string(unicode_str_ptr)
+//                           .unwrap_or("".to_string());
+//
+//         result.push(json!({
+//             "address": format!("0x{:x}", &eprocess_ptr.address()),
+//             "type": "_EPROCESS",
+//             "pid": pid,
+//             "ppid": ppid,
+//             "name": eprocess_name,
+//             "path": binary_path
+//         }));
+//
+//         ptr = driver.decompose(&eprocess_ptr, "_EPROCESS.ActiveProcessLinks.Flink")?;
+//     }
+//
+//     Ok(result)
+// }
+
+// dx Debugger.Utility.Collections.FromListEntry( *(nt!_LIST_ENTRY*)&(nt!KiProcessListHead), "nt!_KPROCESS", "ProcessListEntry").Select( p => new {Process = (nt!_EPROCESS*)&p )
+pub fn traverse_kiprocesslist(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let mut result: Vec<Value> = Vec::new();
+
+    let ntosbase = driver.get_kernel_base();
+    let process_list_head = ntosbase + driver.pdb_store.get_offset_r("KiProcessListHead")?;
+    let eprocess_listentry_offset = driver
+        .pdb_store
+        .get_offset_r("_KPROCESS.ProcessListEntry")?;
+
+    // TODO: make_list_entry
+    let mut ptr: u64 = driver.decompose(&process_list_head, "_LIST_ENTRY.Flink")?;
+    while ptr != process_list_head.address() {
+        let eprocess_ptr = Address::from_base(ptr - eprocess_listentry_offset);
+        result.push(make_eprocess(driver, &eprocess_ptr)?);
+
+        ptr = driver.decompose(&eprocess_ptr, "_KPROCESS.ProcessListEntry.Flink")?;
+    }
+
+    Ok(result)
+}
+
+// dx Debugger.Utility.Collections.FromListEntry(*(nt!_LIST_ENTRY*)&nt!HandleTableListHead, "nt!_HANDLE_TABLE", "HandleTableList").Where(h => h.QuotaProcess != 0).Select( qp => new {Process= qp.QuotaProcess} )
+pub fn traverse_handletable(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let mut result: Vec<Value> = Vec::new();
+
+    let ntosbase = driver.get_kernel_base();
+    let process_list_head = ntosbase + driver.pdb_store.get_offset_r("HandleTableListHead")?;
+    let handle_list_offset = driver
+        .pdb_store
+        .get_offset_r("_HANDLE_TABLE.HandleTableList")?;
+
+    let mut ptr: u64 = driver.decompose(&process_list_head, "_LIST_ENTRY.Flink")?;
+    while ptr != process_list_head.address() {
+        let handle_ptr = Address::from_base(ptr - handle_list_offset);
+        let quota_process: u64 = driver.decompose(&handle_ptr, "_HANDLE_TABLE.QuotaProcess")?;
+
+        if quota_process != 0 {
+            let eprocess_ptr = Address::from_base(quota_process);
+            result.push(make_eprocess(driver, &eprocess_ptr)?);
+        }
+
+        ptr = driver.decompose(&handle_ptr, "_HANDLE_TABLE.HandleTableList.Flink")?;
+    }
+
+    Ok(result)
+}
+
+pub fn traverse_unloadeddrivers(driver: &DriverState) -> BoxResult<Vec<Value>> {
+    let mut result: Vec<Value> = Vec::new();
+    let ntosbase = driver.get_kernel_base();
+    let unload_array_ptr = ntosbase.clone() + driver.pdb_store.get_offset_r("MmUnloadedDrivers")?;
+    let num_unload_ptr =
+        ntosbase.clone() + driver.pdb_store.get_offset_r("MmLastUnloadedDriver")?;
+
+    let unload_array = driver.deref_addr_new::<u64>(unload_array_ptr.address());
+    if unload_array == 0 {
+        return Err("The unload driver list pointer is null".into());
+    }
+
+    // by reversing MmLocateUnloadedDriver
+    let num_unload = driver.deref_addr_new::<u32>(num_unload_ptr.address()) as u64;
+    let bound = if num_unload > 0x32 { 0x32 } else { num_unload };
+    let drivers = (0..bound).map(|i| Address::from_base(unload_array + (i * 0x28)));
+
+    for driver_addr in drivers {
+        let name = driver
+            .get_unicode_string(driver_addr.address())
+            .unwrap_or("".to_string());
+        let start_addr: u64 = driver.decompose(&driver_addr, "_UNLOADED_DRIVERS.StartAddress")?;
+        let end_addr: u64 = driver.decompose(&driver_addr, "_UNLOADED_DRIVERS.EndAddress")?;
+        let current_time: u64 = driver.decompose(&driver_addr, "_UNLOADED_DRIVERS.CurrentTime")?;
+        let time = to_epoch(current_time);
+
+        result.push(json!({
+            "address": format!("0x{:x}", driver_addr.address()),
+            "type": "_UNLOADED_DRIVERS",
+            "name": name,
+            "start_addr": format!("0x{:x}", start_addr),
+            "end_addr": format!("0x{:x}", end_addr),
+            "time_unix": time.timestamp(),
+            "time_rfc2822": time.to_rfc2822()
+        }));
+    }
+
+    Ok(result)
+}
+
+pub fn ssdt_table(driver: &DriverState) -> BoxResult<Vec<u64>> {
+    // https://github.com/volatilityfoundation/volatility3/blob/master/volatility/framework/plugins/windows/ssdt.py
+    let ntosbase = driver.get_kernel_base();
+    let servicetable = ntosbase.clone() + driver.pdb_store.get_offset_r("KiServiceTable")?;
+    let servicelimit_ptr = ntosbase.clone() + driver.pdb_store.get_offset_r("KiServiceLimit")?;
+
+    let servicelimit = driver.deref_addr_new::<u32>(servicelimit_ptr.address()) as u64;
+    let ssdt: Vec<u64> = driver
+        .deref_array::<i32>(&servicetable, servicelimit)
+        .iter()
+        .map(|entry| {
+            // the entry can be negative, we need to do calculation using signed int
+            // and convert back to unsigned int for address
+            ((servicetable.address() as i64) + ((*entry >> 4) as i64)) as u64
+        })
+        .collect();
+    Ok(ssdt)
+}
--- a/src/object.rs
+++ b/src/object.rs
@ -0,0 +1,290 @@
+use crate::address::Address;
+use crate::driver_state::DriverState;
+use crate::{get_device_type, to_epoch};
+use serde_json::{json, Value};
+use std::error::Error;
+use std::str::from_utf8;
+
+type BoxResult<T> = Result<T, Box<dyn Error>>;
+
+pub fn make_list_entry(d: &DriverState, a: Address, next: &str) -> BoxResult<Vec<Address>> {
+    // `a` is the address to the _LIST_ENTRY
+    // `next` is the _LIST_ENTRY field in the object
+    // return a list of address for object
+    let mut result: Vec<Address> = Vec::new();
+    let list_offset = d.pdb_store.get_offset_r(next)?;
+
+    let mut ptr: u64 = d.deref_addr_new(a.address());
+    while ptr != a.address() {
+        let obj_ptr = Address::from_base(ptr - list_offset);
+        ptr = d.decompose(&obj_ptr, &format!("{}.Flink", next))?;
+        result.push(obj_ptr);
+    }
+    Ok(result)
+}
+
+pub fn make_eprocess(d: &DriverState, a: &Address) -> BoxResult<Value> {
+    let createtime: u64 = d.decompose(a, "_EPROCESS.CreateTime")?;
+    let exittime: u64 = d.decompose(a, "_EPROCESS.ExitTime")?;
+    let pid: u64 = d.decompose(a, "_EPROCESS.UniqueProcessId")?;
+    let ppid: u64 = d.decompose(a, "_EPROCESS.InheritedFromUniqueProcessId")?;
+    let image_name: Vec<u8> = d.decompose_array(a, "_EPROCESS.ImageFileName", 15)?;
+    let filename_ptr = d
+        .address_of(a, "_EPROCESS.ImageFilePointer.FileName")
+        .unwrap_or(0); // ImageFilePointer is after Windows 10 Anniversary
+
+    let eprocess_name = if let Ok(name) = from_utf8(&image_name) {
+        name.to_string().trim_end_matches(char::from(0)).to_string()
+    } else {
+        "".to_string()
+    };
+    let binary_path = d.get_unicode_string(filename_ptr).unwrap_or("".to_string());
+
+    let thread_head = d.address_of(a, "_EPROCESS.ThreadListHead")?;
+    let threads: Vec<Value> = make_list_entry(
+        d,
+        Address::from_base(thread_head),
+        "_ETHREAD.ThreadListEntry",
+    )
+    .unwrap_or(Vec::new())
+    .iter()
+    .map(|thread_addr| {
+        make_ethread(d, thread_addr).unwrap_or(json!({})) // unlikely
+    })
+    .collect();
+
+    let c_t = to_epoch(createtime);
+    let e_t = to_epoch(exittime);
+
+    Ok(json!({
+        "address": format!("0x{:x}", a.address()),
+        "type": "_EPROCESS",
+        "pid": pid,
+        "ppid": ppid,
+        "name": eprocess_name,
+        "path": binary_path,
+        "threads": threads,
+        "createtime": {
+            "unix": c_t.timestamp(),
+            "rfc2822": c_t.to_rfc2822()
+        },
+        "exittime": {
+            "unix": e_t.timestamp(),
+            "rfc2822": e_t.to_rfc2822(),
+        }
+    }))
+}
+
+pub fn make_ethread(d: &DriverState, a: &Address) -> BoxResult<Value> {
+    // let createtime: u64 = d.decompose(a, "_ETHREAD.CreateTime")?;
+    // let exittime: u64 = d.decompose(a, "_ETHREAD.ExitTime")?;
+    let pid: u64 = d.decompose(a, "_ETHREAD.Cid.UniqueProcess")?;
+    let tid: u64 = d.decompose(a, "_ETHREAD.Cid.UniqueThread")?;
+    let eprocess: u64 = d.decompose(a, "_ETHREAD.Tcb.Process")?;
+    let flags: u32 = d.decompose(a, "_ETHREAD.CrossThreadFlags")?;
+    let state = match d.decompose::<u8>(a, "_ETHREAD.Tcb.State")? {
+        0 => "Initialized",
+        1 => "Ready",
+        2 => "Running",
+        3 => "Standby",
+        4 => "Terminated",
+        5 => "Waiting",
+        6 => "Transition",
+        7 => "DeferredReady",
+        8 => "GateWait",
+        _ => "Unknown",
+    };
+    let wait = match d.decompose::<u8>(a, "_ETHREAD.Tcb.WaitReason")? {
+        0 => "Executive",
+        1 => "FreePage",
+        2 => "PageIn",
+        3 => "PoolAllocation",
+        4 => "DelayExecution",
+        5 => "Suspended",
+        6 => "UserRequest",
+        7 => "WrExecutive",
+        8 => "WrFreePage",
+        9 => "WrPageIn",
+        10 => "WrPoolAllocation",
+        11 => "WrDelayExecution",
+        12 => "WrSuspended",
+        13 => "WrUserRequest",
+        14 => "WrEventPair",
+        15 => "WrQueue",
+        16 => "WrLpcReceive",
+        17 => "WrLpcReply",
+        18 => "WrVirtualMemory",
+        19 => "WrPageOut",
+        20 => "WrRendezvous",
+        21 => "Spare2",
+        22 => "Spare3",
+        23 => "Spare4",
+        24 => "Spare5",
+        25 => "Spare6",
+        26 => "WrKernel",
+        27 => "WrResource",
+        28 => "WrPushLock",
+        29 => "WrMutex",
+        30 => "WrQuantumEnd",
+        31 => "WrDispatchInt",
+        32 => "WrPreempted",
+        33 => "WrYieldExecution",
+        34 => "WrFastMutex",
+        35 => "WrGuardedMutex",
+        36 => "WrRundown",
+        37 => "MaximumWaitReason",
+        _ => "Unknown",
+    };
+    let name_ptr: u64 = d.address_of(a, "_ETHREAD.ThreadName").unwrap_or(0); // ThreadName is after Windows 10 Anniversary
+
+    let thread_name = if let Ok(name) = d.get_unicode_string(name_ptr) {
+        name
+    } else {
+        "".to_string()
+    };
+
+    // let c_t = to_epoch(createtime);
+    // let e_t = to_epoch(exittime);
+
+    Ok(json!({
+        "address": format!("0x{:x}", a.address()),
+        "type": "_ETHREAD",
+        "tid": tid,
+        "pid": pid,
+        "name": thread_name,
+        "eprocess": format!("0x{:x}", eprocess),
+        "state": state,
+        "wait_reason": wait,
+        "flags": {
+            "raw": format!("0x{:x}", flags),
+            "PS_CROSS_THREAD_FLAGS_TERMINATED": flags & 1 != 0,
+            "PS_CROSS_THREAD_FLAGS_DEADTHREAD": flags & 2 != 0,
+            "PS_CROSS_THREAD_FLAGS_HIDEFROMDBG": flags & 3 != 0,
+            "PS_CROSS_THREAD_FLAGS_IMPERSONATING": flags & 4 != 0,
+            "PS_CROSS_THREAD_FLAGS_SYSTEM": flags & 5 != 0,
+            "PS_CROSS_THREAD_FLAGS_HARD_ERRORS_DISABLED": flags & 6 != 0,
+            "PS_CROSS_THREAD_FLAGS_BREAK_ON_TERMINATION": flags & 7 != 0,
+            "PS_CROSS_THREAD_FLAGS_SKIP_CREATION_MSG": flags & 8 != 0,
+            "PS_CROSS_THREAD_FLAGS_SKIP_TERMINATION_MSG": flags & 9 != 0,
+        },
+        // "createtime": {
+        //     "unix": c_t.timestamp(),
+        //     "rfc2822": c_t.to_rfc2822()
+        // },
+        // "exittime": {
+        //     "unix": e_t.timestamp(),
+        //     "rfc2822": e_t.to_rfc2822(),
+        // }
+    }))
+}
+
+pub fn make_driver(d: &DriverState, a: &Address) -> BoxResult<Value> {
+    let devicename_ptr = d.address_of(a, "_DRIVER_OBJECT.DriverName")?;
+    let servicekey_ptr = d.address_of(a, "_DRIVER_OBJECT.DriverExtension.ServiceKeyName")?;
+    let hardware_ptr: u64 = d.decompose(a, "_DRIVER_OBJECT.HardwareDatabase")?;
+    let major_function: Vec<u64> = d.decompose_array(a, "_DRIVER_OBJECT.MajorFunction", 28)?;
+    let start: u64 = d.decompose(a, "_DRIVER_OBJECT.DriverStart")?;
+    let init: u64 = d.decompose(a, "_DRIVER_OBJECT.DriverInit")?;
+    let unload: u64 = d.decompose(a, "_DRIVER_OBJECT.DriverUnload")?;
+    let size: u64 = d.decompose(a, "_DRIVER_OBJECT.DriverSize")?;
+
+    let devicename = d
+        .get_unicode_string(devicename_ptr)
+        .unwrap_or("".to_string());
+    let hardware = d.get_unicode_string(hardware_ptr).unwrap_or("".to_string());
+    let servicekey = d
+        .get_unicode_string(servicekey_ptr)
+        .unwrap_or("".to_string());
+
+    // device tree walk
+    let devices = {
+        let mut driver_devices: Vec<Value> = Vec::new();
+        let mut device_ptr: u64 = d.decompose(a, "_DRIVER_OBJECT.DeviceObject")?;
+        while device_ptr != 0 {
+            let addr = Address::from_base(device_ptr);
+            let device_type: u32 = d.decompose(&addr, "_DEVICE_OBJECT.DeviceType")?;
+
+            // get attached devices
+            let mut attached_ptr: u64 = d.decompose(&addr, "_DEVICE_OBJECT.AttachedDevice")?;
+            let mut attached_devices: Vec<Value> = Vec::new();
+            while attached_ptr != 0 {
+                let attached = Address::from_base(attached_ptr);
+                let attached_device_type: u32 =
+                    d.decompose(&attached, "_DEVICE_OBJECT.DeviceType")?;
+                attached_devices.push(json!({
+                    "address": format!("0x{:x}", attached_ptr),
+                    "type": "_DEVICE_OBJECT",
+                    "devicetype": get_device_type(attached_device_type)
+                }));
+                attached_ptr = d.decompose(&attached, "_DEVICE_OBJECT.AttachedDevice")?;
+            }
+            driver_devices.push(json!({
+                "address": format!("0x{:x}", device_ptr),
+                "type": "_DEVICE_OBJECT",
+                "devicetype": get_device_type(device_type),
+                "attached": attached_devices
+            }));
+            device_ptr = d.decompose(&addr, "_DEVICE_OBJECT.NextDevice")?;
+        }
+        driver_devices
+    };
+
+    Ok(json!({
+        "address": format!("0x{:x}", a.address()),
+        "type": "_DRIVER_OBJECT",
+        "device": devicename,
+        "hardware": hardware,
+        "major_function": major_function.into_iter()
+                            .map(|func| format!("0x{:x}", func))
+                            .collect::<Vec<String>>(),
+        "servicekey": servicekey,
+        "start": format!("0x{:x}", start),
+        "init": format!("0x{:x}", init),
+        "unload": format!("0x{:x}", unload),
+        "size": format!("0x{:x}", size),
+        "devicetree": devices
+    }))
+}
+
+pub fn make_ldr(d: &DriverState, a: &Address) -> BoxResult<Value> {
+    let dllbase: u64 = d.decompose(a, "_LDR_DATA_TABLE_ENTRY.DllBase")?;
+    let entry: u64 = d.decompose(a, "_LDR_DATA_TABLE_ENTRY.EntryPoint")?;
+    let size: u64 = d.decompose(a, "_LDR_DATA_TABLE_ENTRY.SizeOfImage")?;
+    let fullname_ptr = d.address_of(a, "_LDR_DATA_TABLE_ENTRY.FullDllName")?;
+    let basename_ptr = d.address_of(a, "_LDR_DATA_TABLE_ENTRY.BaseDllName")?;
+
+    let fullname = d.get_unicode_string(fullname_ptr).unwrap_or("".to_string());
+    let basename = d.get_unicode_string(basename_ptr).unwrap_or("".to_string());
+
+    let ldr_load: Vec<String> =
+        make_list_entry(d, a.clone(), "_LDR_DATA_TABLE_ENTRY.InLoadOrderLinks")?
+            .iter()
+            .map(|x| format!("0x{:x}", x.address()))
+            .collect();
+    let ldr_mem: Vec<String> =
+        make_list_entry(d, a.clone(), "_LDR_DATA_TABLE_ENTRY.InMemoryOrderLinks")?
+            .iter()
+            .map(|x| format!("0x{:x}", x.address()))
+            .collect();
+    let ldr_init: Vec<String> = make_list_entry(
+        d,
+        a.clone(),
+        "_LDR_DATA_TABLE_ENTRY.InInitializationOrderLinks",
+    )?
+    .iter()
+    .map(|x| format!("0x{:x}", x.address()))
+    .collect();
+
+    Ok(json!({
+        "address": format!("0x{:x}", a.address()),
+        "type": "_LDR_DATA_TABLE_ENTRY",
+        "dllbase": format!("0x{:x}", dllbase),
+        "entry": format!("0x{:x}", entry),
+        "size": format!("0x{:x}", size),
+        "FullName": fullname,
+        "BaseName": basename,
+        "ldr_load": ldr_load,
+        "ldr_mem": ldr_mem,
+        "ldr_init": ldr_init
+    }))
+}
--- a/src/pdb_store.rs
+++ b/src/pdb_store.rs
@ -1,425 +1,573 @@
-use std::error::Error;
-use std::io;
-use std::io::{Read};
-use std::path::{PathBuf};
-use std::fs::File;
-use std::collections::HashMap;
-
-use pdb::{
-    PDB, SymbolData, TypeData, ClassType, ModifierType, Rva,
-    FallibleIterator, TypeFinder, TypeIndex
-};
-use app_dirs::{AppInfo, AppDataType, app_dir};
-
-use crate::address::Address;
-
-const APP_INFO: AppInfo = AppInfo { name: "lpus", author: "nganhkhoa" };
-
-const KERNEL_PDB_NAME: &str = "ntkrnlmp.pdb";
-const NTOSKRNL_PATH: &str = "C:\\Windows\\System32\\ntoskrnl.exe";
-const PDB_SERVER_PATH: &str = "http://msdl.microsoft.com/download/symbols";
-
-type BoxResult<T> = Result<T, Box<dyn Error>>;
-
-type SymbolStore = HashMap<String, u64>;
-type StructStore = HashMap<String, HashMap<String, (String, u64)>>;
-
-pub struct PdbStore {
-    pub symbols: SymbolStore,
-    pub structs: StructStore
-}
-
-impl PdbStore {
-    pub fn get_offset_r(&self, name: &str) -> BoxResult<u64> {
-        self.get_offset(name)
-            .ok_or(format!("{} is not found in PDB", name).into())
-    }
-    #[allow(dead_code)]
-    pub fn get_offset(&self, name: &str) -> Option<u64> {
-        if name.contains(".") {
-            let v: Vec<&str> = name.split_terminator('.').collect();
-            match self.structs.get(v[0]) {
-                Some(member_info) => {
-                    match member_info.get(v[1]) {
-                        Some((_memtype, offset)) => Some(*offset),
-                        None => None
-                    }
-                },
-                None => None
-            }
-        }
-        else {
-            match self.symbols.get(name) {
-                Some(offset) => Some(*offset),
-                None => None
-            }
-        }
-    }
-
-    #[allow(dead_code)]
-    pub fn addr_decompose(&self, addr: u64, full_name: &str) -> BoxResult<u64>{
-        if !full_name.contains(".") {
-            return Err("Not decomposable".into());
-        }
-
-        let mut name_part: Vec<&str> = full_name.split_terminator('.').collect();
-        let mut next: Vec<_> = name_part.drain(2..).collect();
-        match self.structs.get(name_part[0]) {
-            Some(member_info) => {
-                match member_info.get(name_part[1]) {
-                    Some((memtype, offset)) => {
-                        if next.len() != 0 {
-                            if memtype.contains("*") {
-                                return Err(format!("Cannot dereference pointer at {} {}", memtype, name_part[1]).into());
-                            }
-                            next.insert(0, memtype);
-                            self.addr_decompose(addr + *offset, &next.join("."))
-                        }
-                        else {
-                            Ok(addr + *offset)
-                        }
-                    },
-                    None => Err(format!("Not found member {}", name_part[1]).into())
-                }
-            },
-            None => Err(format!("Struct {} not found", name_part[0]).into())
-        }
-    }
-
-    pub fn decompose(&self, source: &Address, full_name: &str) -> BoxResult<Address> {
-        // println!("decompose {}", full_name);
-        if !full_name.contains(".") {
-            return Err("Not decomposable".into());
-        }
-
-        let mut name_part: Vec<&str> = full_name.split_terminator('.').collect();
-        let mut next: Vec<_> = name_part.drain(2..).collect();
-        let member_info = self.structs.get(name_part[0])
-                          .ok_or(format!("No struct {}", name_part[0]))?;
-        let (memtype, offset) = member_info.get(name_part[1])
-                                .ok_or(format!("No member {} in {}", name_part[1], name_part[0]))?;
-
-        if next.len() == 0 {
-            return Ok(source.clone() + *offset);
-        }
-        if memtype.contains("*") {
-            let mut t = memtype.clone(); // remove *
-            t.pop();
-            next.insert(0, &t);
-            let p = Address::from_ptr(source.clone() + *offset);
-            self.decompose(&p, &next.join("."))
-
-        }
-        else {
-            next.insert(0, memtype);
-            self.decompose(&(source.clone() + *offset), &next.join("."))
-        }
-    }
-
-    #[allow(dead_code)]
-    pub fn print_default_information(&self) {
-        let need_symbols = [
-            "PsLoadedModuleList", "PsActiveProcessHead", "KeNumberNodes",
-            "PoolBigPageTable", "PoolBigPageTableSize",
-            // "PoolVector", "ExpNumberOfNonPagedPools",
-            "KdDebuggerDataBlock", "MmNonPagedPoolStart", "MmNonPagedPoolEnd",              // Windows XP
-            "MiNonPagedPoolStartAligned", "MiNonPagedPoolEnd", "MiNonPagedPoolBitMap",      // Windows 7, 8
-            "MiNonPagedPoolBitMap", "MiNonPagedPoolVaBitMap",
-            "MiState"                                                                       // Windows 10
-        ];
-
-        let mut need_structs = HashMap::new();
-        need_structs.insert("_POOL_HEADER", vec![
-            "struct_size",
-            "PoolType", "BlockSize", "PoolTag"
-        ]);
-        need_structs.insert("_PEB", vec![]);
-        need_structs.insert("_LIST_ENTRY", vec![
-            "Flink", "Blink"
-        ]);
-        need_structs.insert("_FILE_OBJECT", vec![
-            "FileName"
-        ]);
-        need_structs.insert("_EPROCESS", vec![
-            "struct_size",
-            "UniqueProcessId", "ActiveProcessLinks", "CreateTime",
-            "Peb", "ImageFilePointer", "ImageFileName", "ThreadListHead"
-        ]);
-        need_structs.insert("_KDDEBUGGER_DATA64", vec![
-            "MmNonPagedPoolStart", "MmNonPagedPoolEnd",                                     // Windows XP
-        ]);
-        need_structs.insert("_POOL_TRACKER_BIG_PAGES", vec![]);
-
-        // these struct supports finding NonPagedPool{First,Last}Va in windows 10
-        need_structs.insert("_MI_SYSTEM_INFORMATION", vec![
-            "Hardware",                                                 // windows 10 2016+
-            "SystemNodeInformation"                                     // windows 10 2015
-        ]);
-        need_structs.insert("_MI_HARDWARE_STATE", vec![
-            "SystemNodeInformation",                                    // till windows 10 1900
-            "SystemNodeNonPagedPool"                                    // windows insider, 2020
-        ]);
-        need_structs.insert("_MI_SYSTEM_NODE_INFORMATION", vec![        // till windows 10 1900
-            "NonPagedPoolFirstVa", "NonPagedPoolLastVa",
-            "NonPagedBitMap",                                           // missing on windows 10 1900+
-            "DynamicBitMapNonPagedPool"                                 // some weird field
-        ]);
-        need_structs.insert("_MI_SYSTEM_NODE_NONPAGED_POOL", vec![      // windows insider, 2020
-            "NonPagedPoolFirstVa", "NonPagedPoolLastVa",
-            "DynamicBitMapNonPagedPool"                                 // some weird field
-        ]);
-        need_structs.insert("_MI_DYNAMIC_BITMAP", vec![]);
-        need_structs.insert("_RTL_BITMAP", vec![]);                     // windows 10 until 2020
-        need_structs.insert("_RTL_BITMAP_EX", vec![]);                  // windows insider, 2020
-
-        for &symbol in &need_symbols {
-            match self.symbols.get(symbol) {
-                Some(offset) => println!("0x{:x} {}", offset, symbol),
-                None => {}
-            }
-        }
-
-        for (&struct_name, members) in &need_structs {
-            match self.structs.get(struct_name) {
-                Some(member_info) => {
-                    for &member in members {
-                        match member_info.get(member) {
-                            Some((memtype, offset)) =>
-                                println!("0x{:x} {} {}.{}", offset, memtype, struct_name, member),
-                            None => {}
-                        }
-                    }
-                },
-                None => {}
-            }
-        }
-    }
-}
-
-fn get_type_as_str(type_finder: &TypeFinder, typ: &TypeIndex) -> String {
-    match type_finder.find(*typ).unwrap().parse().unwrap() {
-        TypeData::Class(ct) => {
-            format!("{}", ct.name.to_string())
-        },
-        TypeData::Primitive(pt) => {
-            format!("{:?}", pt.kind)
-        },
-        TypeData::Pointer(pt) => {
-            format!("{}*", get_type_as_str(type_finder, &pt.underlying_type))
-        },
-        TypeData::StaticMember(st) => {
-            format!("static {}", get_type_as_str(type_finder, &st.field_type))
-        },
-        TypeData::Array(at) => {
-            format!("{}{:?}",
-                get_type_as_str(type_finder, &at.element_type), /* get_type_as_str(type_finder, &at.indexing_type), */ at.dimensions)
-        },
-        // TypeData::Enumeration(et) => {
-        //     format!("enumeration")
-        // },
-        // TypeData::Enumerate(et) => {
-        //     format!("enumerate")
-        // },
-        // TypeData::MemberFunction(mft) => {
-        //     format!("member function")
-        // },
-        // TypeData::OverloadedMethod(ovmt) => {
-        //     format!("overloaded method")
-        // },
-        // TypeData::Nested(nt) => {
-        //     format!("nested")
-        // },
-        // TypeData::BaseClass(bct) => {
-        //     format!("base class")
-        // },
-        // TypeData::VirtualBaseClass(vbct) => {
-        //     format!("virtual base class")
-        // },
-        // TypeData::VirtualFunctionTablePointer(vftpt) => {
-        //     format!("virtual function table pointer")
-        // },
-        TypeData::Procedure(pt) => {
-            let rettype = match pt.return_type {
-                Some(rt) => get_type_as_str(type_finder, &rt),
-                _ => "UNKNOWN".to_string()
-            };
-            format!("{}({})", rettype, get_type_as_str(type_finder, &pt.argument_list))
-        },
-        TypeData::Modifier(mt) => {
-            match mt {
-                ModifierType { constant: true, volatile: true, unaligned: true, .. } =>
-                    format!("const volatile unaligned {}", get_type_as_str(type_finder, &mt.underlying_type)),
-                ModifierType { constant: true, volatile: true, unaligned: false, .. } =>
-                    format!("const volatile {}", get_type_as_str(type_finder, &mt.underlying_type)),
-                ModifierType { constant: true, volatile: false, unaligned: true, .. } =>
-                    format!("const unaligned {}", get_type_as_str(type_finder, &mt.underlying_type)),
-                ModifierType { constant: false, volatile: true, unaligned: true, .. } =>
-                    format!("volatile unaligned {}", get_type_as_str(type_finder, &mt.underlying_type)),
-                ModifierType { constant: true, volatile: false, unaligned: false, .. } =>
-                    format!("const {}", get_type_as_str(type_finder, &mt.underlying_type)),
-                ModifierType { constant: false, volatile: true, unaligned: false, .. } =>
-                    format!("volatile {}", get_type_as_str(type_finder, &mt.underlying_type)),
-                ModifierType { constant: false, volatile: false, unaligned: true, .. } =>
-                    format!("unaligned {}", get_type_as_str(type_finder, &mt.underlying_type)),
-                _ => format!("modifier {}", get_type_as_str(type_finder, &mt.underlying_type))
-            }
-        },
-        // TypeData::Union(ut) => {
-        //     format!("union")
-        // },
-        // TypeData::Bitfield(bft) => {
-        //     format!("bitfield")
-        // },
-        TypeData::FieldList(_flt) => {
-            format!("fieldlist")
-        },
-        // TypeData::ArgumentList(alt) => {
-        //     format!("arglist")
-        // },
-        // TypeData::MethodList(mlt) => {
-        //     format!("methodlist")
-        // },
-        unk => {
-            match unk.name() {
-                Some(s) => format!("{}", s.to_string()),
-                _ => "UNNOWN".to_string()
-            }
-        }
-    }
-}
-
-fn get_guid_age(exe_file: &str) -> BoxResult<(String, u32)>{
-    // TODO: Check file existance
-    let mut file = File::open(exe_file)?;
-
-    let mut buffer = Vec::new();
-    file.read_to_end(&mut buffer)?;
-
-    let mut buffiter = buffer.chunks(4);
-    while buffiter.next().unwrap() != [0x52, 0x53, 0x44, 0x53] {
-        // signature == RSDS
-    }
-
-    // next 16 bytes is guid in raw bytes
-    let raw_guid: Vec<u8> = vec![
-        buffiter.next().unwrap(),
-        buffiter.next().unwrap(),
-        buffiter.next().unwrap(),
-        buffiter.next().unwrap(),
-    ].concat();
-
-    // guid to hex string
-    let guid = (vec![
-        raw_guid[3], raw_guid[2], raw_guid[1], raw_guid[0],
-        raw_guid[5], raw_guid[4],
-        raw_guid[7], raw_guid[6],
-        raw_guid[8], raw_guid[9], raw_guid[10], raw_guid[11],
-        raw_guid[12], raw_guid[13], raw_guid[14], raw_guid[15],
-    ].iter().map(|b| format!("{:02X}", b)).collect::<Vec<String>>()).join("");
-
-    // next 4 bytes is age, in little endian
-    let raw_age = buffiter.next().unwrap();
-    let age = u32::from_le_bytes([
-        raw_age[0], raw_age[1], raw_age[2], raw_age[3]
-    ]);
-
-    Ok((guid, age))
-}
-
-fn pdb_exists(pdbname: &str, guid: &str, age: u32) -> BoxResult<(bool, PathBuf)> {
-    // Use a folder at %APPDATA% to save pdb files
-    // %APPDATA%\nganhkhoaa\lpus
-    // |--ntkrnlmp.pdb
-    // |--|--GUID
-    // |--|--|--ntkrnlmp.pdb
-    // |--file.pdb
-    // |--|--GUID
-    // |--|--|--file.pdb
-    let mut pdb_location = app_dir(AppDataType::UserData, &APP_INFO,
-                                   &format!("{}/{}/{}", pdbname, guid, age))?;
-    pdb_location.push(pdbname);
-    Ok((pdb_location.exists(), pdb_location))
-}
-
-fn download_pdb(pdbname: &str, guid: &str, age: u32, outfile: &PathBuf) -> BoxResult<()> {
-    let downloadurl = format!("{}/{}/{}{:X}/{}", PDB_SERVER_PATH, pdbname, guid, age, pdbname);
-    println!("{}", downloadurl);
-
-    let mut resp = reqwest::blocking::get(&downloadurl)?;
-    let mut out = File::create(outfile)?;
-    io::copy(&mut resp, &mut out)?;
-    Ok(())
-}
-
-pub fn parse_pdb() -> BoxResult<PdbStore> {
-    // TODO: Resolve pdb name
-    // ntoskrnl.exe -> ntkrnlmp.pdb
-    // tcpip.sys -> tcpip.pdb ?????
-    // There may be more pdb files in the future
-    let (guid, age) = get_guid_age(NTOSKRNL_PATH)?;
-    let (exists, pdb_path) = pdb_exists(KERNEL_PDB_NAME, &guid, age)?;
-    if !exists {
-        println!("PDB not found, download into {:?}", pdb_path);
-        download_pdb(KERNEL_PDB_NAME, &guid, age, &pdb_path)?;
-    }
-    let f = File::open(pdb_path)?;
-    let mut pdb = PDB::open(f)?;
-
-    let info = pdb.pdb_information()?;
-    let dbi = pdb.debug_information()?;
-    println!("PDB for {}, guid: {}, age: {}\n",
-        dbi.machine_type().unwrap(), info.guid, dbi.age().unwrap_or(0));
-
-    let type_information = pdb.type_information()?;
-    let mut type_finder = type_information.type_finder();
-    let mut iter = type_information.iter();
-    while let Some(_typ) = iter.next().unwrap() {
-        type_finder.update(&iter);
-    }
-
-    let mut symbol_extracted: SymbolStore = HashMap::new();
-    let addr_map = pdb.address_map()?;
-    let glosym = pdb.global_symbols()?;
-    let mut symbols = glosym.iter();
-    while let Some(symbol) = symbols.next().unwrap() {
-        match symbol.parse() {
-            Ok(SymbolData::PublicSymbol(data)) => {
-                let name = symbol.name().unwrap().to_string();
-                let Rva(rva) = data.offset.to_rva(&addr_map).unwrap_or_default();
-                symbol_extracted.insert(format!("{}", name), rva as u64);
-            },
-            _ => {
-            }
-        }
-    }
-
-    let mut struct_extracted: StructStore = HashMap::new();
-    iter = type_information.iter();
-    while let Some(typ) = iter.next().unwrap() {
-        match typ.parse() {
-            Ok(TypeData::Class(ClassType {name, fields: Some(fields), size, ..})) => {
-                let mut struct_fields = HashMap::new();
-                struct_fields.insert("struct_size".to_string(), ("u32".to_string(), size as u64));
-                match type_finder.find(fields).unwrap().parse().unwrap() {
-                    TypeData::FieldList(list) => {
-                        for field in list.fields {
-                            if let TypeData::Member(member) = field {
-                                let mem_typ = get_type_as_str(&type_finder, &member.field_type);
-                                struct_fields.insert(
-                                    format!("{}", member.name), (mem_typ, member.offset as u64));
-                            }
-                        }
-                    }
-                    _ => {}
-                }
-                struct_extracted.insert(format!("{}", name), struct_fields);
-            },
-            _ => {}
-        }
-    }
-
-    Ok(PdbStore {
-        symbols: symbol_extracted,
-        structs: struct_extracted
-    })
-}
+use std::collections::HashMap;
+use std::error::Error;
+use std::fs::File;
+use std::io;
+use std::io::Read;
+use std::path::PathBuf;
+
+use app_dirs::{app_dir, AppDataType};
+use pdb::{
+    ClassType, FallibleIterator, ModifierType, Rva, SymbolData, TypeData, TypeFinder, TypeIndex,
+    PDB,
+};
+
+use crate::address::Address;
+use crate::APP_INFO;
+
+const KERNEL_PDB_NAME: &str = "ntkrnlmp.pdb";
+const NTOSKRNL_PATH: &str = "C:\\Windows\\System32\\ntoskrnl.exe";
+const PDB_SERVER_PATH: &str = "http://msdl.microsoft.com/download/symbols";
+
+type BoxResult<T> = Result<T, Box<dyn Error>>;
+
+type SymbolStore = HashMap<String, u64>;
+type StructStore = HashMap<String, HashMap<String, (String, u64)>>;
+
+pub struct PdbStore {
+    pub symbols: SymbolStore,
+    pub structs: StructStore,
+}
+
+impl PdbStore {
+    pub fn get_offset_r(&self, name: &str) -> BoxResult<u64> {
+        self.get_offset(name)
+            .ok_or(format!("{} is not found in PDB", name).into())
+    }
+    #[allow(dead_code)]
+    pub fn get_offset(&self, name: &str) -> Option<u64> {
+        if name.contains(".") {
+            let v: Vec<&str> = name.split_terminator('.').collect();
+            match self.structs.get(v[0]) {
+                Some(member_info) => match member_info.get(v[1]) {
+                    Some((_memtype, offset)) => Some(*offset),
+                    None => None,
+                },
+                None => None,
+            }
+        } else {
+            match self.symbols.get(name) {
+                Some(offset) => Some(*offset),
+                None => None,
+            }
+        }
+    }
+
+    #[allow(dead_code)]
+    pub fn addr_decompose(&self, addr: u64, full_name: &str) -> BoxResult<u64> {
+        if !full_name.contains(".") {
+            return Err("Not decomposable".into());
+        }
+
+        let mut name_part: Vec<&str> = full_name.split_terminator('.').collect();
+        let mut next: Vec<_> = name_part.drain(2..).collect();
+        match self.structs.get(name_part[0]) {
+            Some(member_info) => match member_info.get(name_part[1]) {
+                Some((memtype, offset)) => {
+                    if next.len() != 0 {
+                        if memtype.contains("*") {
+                            return Err(format!(
+                                "Cannot dereference pointer at {} {}",
+                                memtype, name_part[1]
+                            )
+                            .into());
+                        }
+                        next.insert(0, memtype);
+                        self.addr_decompose(addr + *offset, &next.join("."))
+                    } else {
+                        Ok(addr + *offset)
+                    }
+                }
+                None => Err(format!("Not found member {}", name_part[1]).into()),
+            },
+            None => Err(format!("Struct {} not found", name_part[0]).into()),
+        }
+    }
+
+    pub fn decompose(&self, source: &Address, full_name: &str) -> BoxResult<Address> {
+        // println!("decompose {}", full_name);
+        if !full_name.contains(".") {
+            return Err("Not decomposable".into());
+        }
+
+        let mut name_part: Vec<&str> = full_name.split_terminator('.').collect();
+        let mut next: Vec<_> = name_part.drain(2..).collect();
+        let member_info = self
+            .structs
+            .get(name_part[0])
+            .ok_or(format!("No struct {}", name_part[0]))?;
+        let (memtype, offset) = member_info
+            .get(name_part[1])
+            .ok_or(format!("No member {} in {}", name_part[1], name_part[0]))?;
+
+        if next.len() == 0 {
+            return Ok(source.clone() + *offset);
+        }
+        if memtype.contains("*") {
+            let mut t = memtype.clone(); // remove *
+            t.pop();
+            next.insert(0, &t);
+            let p = Address::from_ptr(source.clone() + *offset);
+            self.decompose(&p, &next.join("."))
+        } else {
+            next.insert(0, memtype);
+            self.decompose(&(source.clone() + *offset), &next.join("."))
+        }
+    }
+
+    #[allow(dead_code)]
+    pub fn print_default_information(&self) {
+        let need_symbols = [
+            "PsLoadedModuleList",
+            "PsActiveProcessHead",
+            "KeNumberNodes",
+            "PoolBigPageTable",
+            "PoolBigPageTableSize",
+            // "PoolVector", "ExpNumberOfNonPagedPools",
+            "KdDebuggerDataBlock",
+            "MmNonPagedPoolStart",
+            "MmNonPagedPoolEnd", // Windows XP
+            "MiNonPagedPoolStartAligned",
+            "MiNonPagedPoolEnd",
+            "MiNonPagedPoolBitMap", // Windows 7, 8
+            "MiNonPagedPoolBitMap",
+            "MiNonPagedPoolVaBitMap",
+            "MiState", // Windows 10
+        ];
+
+        let mut need_structs = HashMap::new();
+        need_structs.insert(
+            "_POOL_HEADER",
+            vec!["struct_size", "PoolType", "BlockSize", "PoolTag"],
+        );
+        need_structs.insert("_PEB", vec![]);
+        need_structs.insert("_LIST_ENTRY", vec!["Flink", "Blink"]);
+        need_structs.insert("_FILE_OBJECT", vec!["FileName"]);
+        need_structs.insert(
+            "_EPROCESS",
+            vec![
+                "struct_size",
+                "UniqueProcessId",
+                "ActiveProcessLinks",
+                "CreateTime",
+                "Peb",
+                "ImageFilePointer",
+                "ImageFileName",
+                "ThreadListHead",
+            ],
+        );
+        need_structs.insert(
+            "_KDDEBUGGER_DATA64",
+            vec![
+                "MmNonPagedPoolStart",
+                "MmNonPagedPoolEnd", // Windows XP
+            ],
+        );
+        need_structs.insert("_POOL_TRACKER_BIG_PAGES", vec![]);
+
+        // these struct supports finding NonPagedPool{First,Last}Va in windows 10
+        need_structs.insert(
+            "_MI_SYSTEM_INFORMATION",
+            vec![
+                "Hardware",              // windows 10 2016+
+                "SystemNodeInformation", // windows 10 2015
+            ],
+        );
+        need_structs.insert(
+            "_MI_HARDWARE_STATE",
+            vec![
+                "SystemNodeInformation",  // till windows 10 1900
+                "SystemNodeNonPagedPool", // windows insider, 2020
+            ],
+        );
+        need_structs.insert(
+            "_MI_SYSTEM_NODE_INFORMATION",
+            vec![
+                // till windows 10 1900
+                "NonPagedPoolFirstVa",
+                "NonPagedPoolLastVa",
+                "NonPagedBitMap",            // missing on windows 10 1900+
+                "DynamicBitMapNonPagedPool", // some weird field
+            ],
+        );
+        need_structs.insert(
+            "_MI_SYSTEM_NODE_NONPAGED_POOL",
+            vec![
+                // windows insider, 2020
+                "NonPagedPoolFirstVa",
+                "NonPagedPoolLastVa",
+                "DynamicBitMapNonPagedPool", // some weird field
+            ],
+        );
+        need_structs.insert("_MI_DYNAMIC_BITMAP", vec![]);
+        need_structs.insert("_RTL_BITMAP", vec![]); // windows 10 until 2020
+        need_structs.insert("_RTL_BITMAP_EX", vec![]); // windows insider, 2020
+
+        for &symbol in &need_symbols {
+            match self.symbols.get(symbol) {
+                Some(offset) => println!("0x{:x} {}", offset, symbol),
+                None => {}
+            }
+        }
+
+        for (&struct_name, members) in &need_structs {
+            match self.structs.get(struct_name) {
+                Some(member_info) => {
+                    for &member in members {
+                        match member_info.get(member) {
+                            Some((memtype, offset)) => {
+                                println!("0x{:x} {} {}.{}", offset, memtype, struct_name, member)
+                            }
+                            None => {}
+                        }
+                    }
+                }
+                None => {}
+            }
+        }
+    }
+
+    pub fn dt(&self, struct_name: &str) -> BoxResult<()> {
+        let member_info = self
+            .structs
+            .get(struct_name)
+            .ok_or(format!("no struct named {}", struct_name))?;
+        let (_, struct_size) = member_info.get("struct_size").ok_or("")?;
+        println!("// 0x{:x} bytes", struct_size);
+        println!("struct {} {{", struct_name);
+
+        // Vec<(offset, type, name)>
+        let mut members: Vec<(u64, String, String)> = Vec::new();
+        for (name, (t, offset)) in member_info.iter() {
+            if name != "struct_size" {
+                members.push((*offset, t.to_string(), name.to_string()));
+            }
+        }
+        members.sort_by(|(o1, _, _), (o2, _, _)| o1.partial_cmp(o2).unwrap());
+
+        for (offset, memtype, member) in members.iter() {
+            println!("  +0x{:x} {} {};", offset, memtype, member);
+        }
+
+        println!("}} // {}", struct_name);
+        Ok(())
+    }
+}
+
+fn get_type_as_str(type_finder: &TypeFinder, typ: &TypeIndex) -> String {
+    match type_finder.find(*typ).unwrap().parse().unwrap() {
+        TypeData::Class(ct) => format!("{}", ct.name.to_string()),
+        TypeData::Primitive(pt) => format!("{:?}", pt.kind),
+        TypeData::Pointer(pt) => format!("{}*", get_type_as_str(type_finder, &pt.underlying_type)),
+        TypeData::StaticMember(st) => {
+            format!("static {}", get_type_as_str(type_finder, &st.field_type))
+        }
+        TypeData::Array(at) => {
+            format!(
+                "{}{:?}",
+                get_type_as_str(type_finder, &at.element_type),
+                /* get_type_as_str(type_finder, &at.indexing_type), */ at.dimensions
+            )
+        }
+        // TypeData::Enumeration(et) => {
+        //     format!("enumeration")
+        // },
+        // TypeData::Enumerate(et) => {
+        //     format!("enumerate")
+        // },
+        // TypeData::MemberFunction(mft) => {
+        //     format!("member function")
+        // },
+        // TypeData::OverloadedMethod(ovmt) => {
+        //     format!("overloaded method")
+        // },
+        // TypeData::Nested(nt) => {
+        //     format!("nested")
+        // },
+        // TypeData::BaseClass(bct) => {
+        //     format!("base class")
+        // },
+        // TypeData::VirtualBaseClass(vbct) => {
+        //     format!("virtual base class")
+        // },
+        // TypeData::VirtualFunctionTablePointer(vftpt) => {
+        //     format!("virtual function table pointer")
+        // },
+        TypeData::Procedure(pt) => {
+            let rettype = match pt.return_type {
+                Some(rt) => get_type_as_str(type_finder, &rt),
+                _ => "UNKNOWN".to_string(),
+            };
+            format!(
+                "{}({})",
+                rettype,
+                get_type_as_str(type_finder, &pt.argument_list)
+            )
+        }
+        TypeData::Modifier(mt) => match mt {
+            ModifierType {
+                constant: true,
+                volatile: true,
+                unaligned: true,
+                ..
+            } => format!(
+                "const volatile unaligned {}",
+                get_type_as_str(type_finder, &mt.underlying_type)
+            ),
+            ModifierType {
+                constant: true,
+                volatile: true,
+                unaligned: false,
+                ..
+            } => format!(
+                "const volatile {}",
+                get_type_as_str(type_finder, &mt.underlying_type)
+            ),
+            ModifierType {
+                constant: true,
+                volatile: false,
+                unaligned: true,
+                ..
+            } => format!(
+                "const unaligned {}",
+                get_type_as_str(type_finder, &mt.underlying_type)
+            ),
+            ModifierType {
+                constant: false,
+                volatile: true,
+                unaligned: true,
+                ..
+            } => format!(
+                "volatile unaligned {}",
+                get_type_as_str(type_finder, &mt.underlying_type)
+            ),
+            ModifierType {
+                constant: true,
+                volatile: false,
+                unaligned: false,
+                ..
+            } => format!(
+                "const {}",
+                get_type_as_str(type_finder, &mt.underlying_type)
+            ),
+            ModifierType {
+                constant: false,
+                volatile: true,
+                unaligned: false,
+                ..
+            } => format!(
+                "volatile {}",
+                get_type_as_str(type_finder, &mt.underlying_type)
+            ),
+            ModifierType {
+                constant: false,
+                volatile: false,
+                unaligned: true,
+                ..
+            } => format!(
+                "unaligned {}",
+                get_type_as_str(type_finder, &mt.underlying_type)
+            ),
+            _ => format!(
+                "modifier {}",
+                get_type_as_str(type_finder, &mt.underlying_type)
+            ),
+        },
+        // TypeData::Union(ut) => {
+        //     format!("union")
+        // },
+        // TypeData::Bitfield(bft) => {
+        //     format!("bitfield")
+        // },
+        TypeData::FieldList(_flt) => format!("fieldlist"),
+        // TypeData::ArgumentList(alt) => {
+        //     format!("arglist")
+        // },
+        // TypeData::MethodList(mlt) => {
+        //     format!("methodlist")
+        // },
+        unk => match unk.name() {
+            Some(s) => format!("{}", s.to_string()),
+            _ => "UNNOWN".to_string(),
+        },
+    }
+}
+
+fn get_guid_age(exe_file: &str) -> BoxResult<(String, u32)> {
+    // TODO: Check file existance
+    let mut file = File::open(exe_file)?;
+
+    let mut buffer = Vec::new();
+    file.read_to_end(&mut buffer)?;
+
+    let mut buffiter = buffer.chunks(4);
+    while buffiter.next().unwrap() != [0x52, 0x53, 0x44, 0x53] {
+        // signature == RSDS
+    }
+
+    // next 16 bytes is guid in raw bytes
+    let raw_guid: Vec<u8> = vec![
+        buffiter.next().unwrap(),
+        buffiter.next().unwrap(),
+        buffiter.next().unwrap(),
+        buffiter.next().unwrap(),
+    ]
+    .concat();
+
+    // guid to hex string
+    let guid = (vec![
+        raw_guid[3],
+        raw_guid[2],
+        raw_guid[1],
+        raw_guid[0],
+        raw_guid[5],
+        raw_guid[4],
+        raw_guid[7],
+        raw_guid[6],
+        raw_guid[8],
+        raw_guid[9],
+        raw_guid[10],
+        raw_guid[11],
+        raw_guid[12],
+        raw_guid[13],
+        raw_guid[14],
+        raw_guid[15],
+    ]
+    .iter()
+    .map(|b| format!("{:02X}", b))
+    .collect::<Vec<String>>())
+    .join("");
+
+    // next 4 bytes is age, in little endian
+    let raw_age = buffiter.next().unwrap();
+    let age = u32::from_le_bytes([raw_age[0], raw_age[1], raw_age[2], raw_age[3]]);
+
+    Ok((guid, age))
+}
+
+fn pdb_exists(pdbname: &str, guid: &str, age: u32) -> BoxResult<(bool, PathBuf)> {
+    // Use a folder at %APPDATA% to save pdb files
+    // %APPDATA%\nganhkhoaa\lpus
+    // |--ntkrnlmp.pdb
+    // |--|--GUID
+    // |--|--|--ntkrnlmp.pdb
+    // |--file.pdb
+    // |--|--GUID
+    // |--|--|--file.pdb
+    let mut pdb_location = app_dir(
+        AppDataType::UserData,
+        &APP_INFO,
+        &format!("{}/{}/{}", pdbname, guid, age),
+    )?;
+    pdb_location.push(pdbname);
+    Ok((pdb_location.exists(), pdb_location))
+}
+
+fn download_pdb(pdbname: &str, guid: &str, age: u32, outfile: &PathBuf) -> BoxResult<()> {
+    let downloadurl = format!(
+        "{}/{}/{}{:X}/{}",
+        PDB_SERVER_PATH, pdbname, guid, age, pdbname
+    );
+    println!("{}", downloadurl);
+
+    let mut resp = reqwest::blocking::get(&downloadurl)?;
+    let mut out = File::create(outfile)?;
+    io::copy(&mut resp, &mut out)?;
+    Ok(())
+}
+
+pub fn parse_pdb() -> BoxResult<PdbStore> {
+    // TODO: Resolve pdb name
+    // ntoskrnl.exe -> ntkrnlmp.pdb
+    // tcpip.sys -> tcpip.pdb ?????
+    // There may be more pdb files in the future
+    let (guid, age) = get_guid_age(NTOSKRNL_PATH)?;
+    let (exists, pdb_path) = pdb_exists(KERNEL_PDB_NAME, &guid, age)?;
+    if !exists {
+        println!("PDB not found, download into {:?}", pdb_path);
+        download_pdb(KERNEL_PDB_NAME, &guid, age, &pdb_path)?;
+    }
+    let f = File::open(pdb_path)?;
+    let mut pdb = PDB::open(f)?;
+
+    let info = pdb.pdb_information()?;
+    let dbi = pdb.debug_information()?;
+    println!(
+        "PDB for {}, guid: {}, age: {}\n",
+        dbi.machine_type().unwrap(),
+        info.guid,
+        dbi.age().unwrap_or(0)
+    );
+
+    let type_information = pdb.type_information()?;
+    let mut type_finder = type_information.type_finder();
+    let mut iter = type_information.iter();
+    while let Some(_typ) = iter.next().unwrap() {
+        type_finder.update(&iter);
+    }
+
+    let mut symbol_extracted: SymbolStore = HashMap::new();
+    let addr_map = pdb.address_map()?;
+    let glosym = pdb.global_symbols()?;
+    let mut symbols = glosym.iter();
+    while let Some(symbol) = symbols.next().unwrap() {
+        match symbol.parse() {
+            Ok(SymbolData::PublicSymbol(data)) => {
+                let name = symbol.name().unwrap().to_string();
+                let Rva(rva) = data.offset.to_rva(&addr_map).unwrap_or_default();
+                symbol_extracted.insert(format!("{}", name), rva as u64);
+            }
+            _ => {}
+        }
+    }
+
+    let mut struct_extracted: StructStore = HashMap::new();
+    iter = type_information.iter();
+    while let Some(typ) = iter.next().unwrap() {
+        match typ.parse() {
+            Ok(TypeData::Class(ClassType {
+                name,
+                fields: Some(fields),
+                size,
+                ..
+            })) => {
+                let mut struct_fields = HashMap::new();
+                struct_fields.insert("struct_size".to_string(), ("U32".to_string(), size as u64));
+                match type_finder.find(fields).unwrap().parse().unwrap() {
+                    TypeData::FieldList(list) => {
+                        for field in list.fields {
+                            if let TypeData::Member(member) = field {
+                                let mem_typ = get_type_as_str(&type_finder, &member.field_type);
+                                struct_fields.insert(
+                                    format!("{}", member.name),
+                                    (mem_typ, member.offset as u64),
+                                );
+                            }
+                        }
+                    }
+                    _ => {}
+                }
+                struct_extracted.insert(format!("{}", name), struct_fields);
+            }
+            _ => {}
+        }
+    }
+
+    {
+        // https://github.com/Zer0Mem0ry/ntoskrnl/blob/master/Include/mm.h#L1107
+        let mut unload_driver_member = HashMap::new();
+        unload_driver_member.insert("struct_size".to_string(), ("U32".to_string(), 0x30));
+        unload_driver_member.insert("Name".to_string(), ("_UNICODE_STRING".to_string(), 0));
+        unload_driver_member.insert("StartAddress".to_string(), ("PVOID".to_string(), 0x10));
+        unload_driver_member.insert("EndAddress".to_string(), ("PVOID".to_string(), 0x18));
+        unload_driver_member.insert(
+            "CurrentTime".to_string(),
+            ("_LARGE_INTEGER".to_string(), 0x20),
+        );
+        struct_extracted.insert("_UNLOADED_DRIVERS".to_string(), unload_driver_member);
+    }
+
+    Ok(PdbStore {
+        symbols: symbol_extracted,
+        structs: struct_extracted,
+    })
+}
--- a/src/repl/eval.rs
+++ b/src/repl/eval.rs
@ -1,581 +0,0 @@
-use crate::{
-    error::{BlisprError, BlisprResult},
-    lenv::Lenv,
-    lval::{
-        lval_add, lval_join, lval_lambda, lval_num, lval_pop, lval_qexpr, lval_sexpr, Lval, LvalFun,
-    },
-};
-use log::debug;
-use std::{collections::HashMap, ops::{Add, Div, Mul, Rem, Sub}};
-
-// macro to shorten code for applying a binary operation to two Lvals
-macro_rules! apply_binop {
-    ( $op:ident, $x:ident, $y:ident ) => {
-        match (*$x, *$y) {
-            (Lval::Num(x_num), Lval::Num(y_num)) => {
-                $x = lval_num(x_num.$op(y_num));
-                continue;
-            }
-            _ => return Err(BlisprError::NotANumber),
-        }
-    };
-}
-
-// apply a binary operation {+ - * / ^ % min max} to a list of arguments in succession
-fn builtin_op(mut v: &mut Lval, func: &str) -> BlisprResult {
-    let mut child_count;
-    match *v {
-        Lval::Sexpr(ref children) => {
-            child_count = children.len();
-        }
-        _ => return Ok(Box::new(v.clone())),
-    }
-
-    let mut x = lval_pop(&mut v, 0)?;
-
-    // If no args given and we're doing subtraction, perform unary negation
-    if (func == "-" || func == "sub") && child_count == 1 {
-        debug!("builtin_op: Unary negation on {}", x);
-        let x_num = x.as_num()?;
-        return Ok(lval_num(-x_num));
-    }
-
-    // consume the children until empty
-    // and operate on x
-    while child_count > 1 {
-        let y = lval_pop(&mut v, 0)?;
-        child_count -= 1;
-        match func {
-            "+" | "add" => {
-                debug!("builtin_op: Add {} and {}", x, y);
-                apply_binop!(add, x, y)
-            }
-            "-" | "sub" => {
-                debug!("builtin_op: Subtract {} and {}", x, y);
-                apply_binop!(sub, x, y)
-            }
-            "*" | "mul" => {
-                debug!("builtin_op: Multiply {} and {}", x, y);
-                apply_binop!(mul, x, y)
-            }
-            "/" | "div" => {
-                if y.as_num()? == 0 {
-                    debug!("builtin_op: Failed divide {} by {}", x, y);
-                    return Err(BlisprError::DivideByZero);
-                } else {
-                    debug!("builtin_op: Divide {} by {}", x, y);
-                    apply_binop!(div, x, y)
-                }
-            }
-            "%" | "rem" => {
-                debug!("builtin_op: {} % {}", x, y);
-                apply_binop!(rem, x, y)
-            }
-            "^" | "pow" => {
-                debug!("builtin_op: Raise {} to the {} power", x, y);
-                let y_num = y.as_num()?;
-                let x_num = x.as_num()?;
-                let mut coll = 1;
-                for _ in 0..y_num {
-                    coll *= x_num;
-                }
-                x = lval_num(coll);
-            }
-            "min" => {
-                debug!("builtin_op: Min {} and {}", x, y);
-                let x_num = x.as_num()?;
-                let y_num = y.as_num()?;
-                if x_num < y_num {
-                    x = lval_num(x_num);
-                } else {
-                    x = lval_num(y_num);
-                };
-            }
-            "max" => {
-                debug!("builtin_op: Max {} and {}", x, y);
-                let x_num = x.as_num()?;
-                let y_num = y.as_num()?;
-                if x_num > y_num {
-                    x = lval_num(x_num);
-                } else {
-                    x = lval_num(y_num);
-                };
-            }
-            _ => unreachable!(),
-        }
-    }
-    Ok(x)
-}
-
-// Operator aliases, function pointers will be stored in env
-// TODO macro??  create_builtin!(a, &str)
-pub fn builtin_add(a: &mut Lval) -> BlisprResult {
-    builtin_op(a, "+")
-}
-
-pub fn builtin_sub(a: &mut Lval) -> BlisprResult {
-    builtin_op(a, "-")
-}
-
-pub fn builtin_mul(a: &mut Lval) -> BlisprResult {
-    builtin_op(a, "*")
-}
-
-pub fn builtin_div(a: &mut Lval) -> BlisprResult {
-    builtin_op(a, "/")
-}
-
-pub fn builtin_pow(a: &mut Lval) -> BlisprResult {
-    builtin_op(a, "^")
-}
-
-pub fn builtin_rem(a: &mut Lval) -> BlisprResult {
-    builtin_op(a, "%")
-}
-
-pub fn builtin_max(a: &mut Lval) -> BlisprResult {
-    builtin_op(a, "max")
-}
-
-pub fn builtin_min(a: &mut Lval) -> BlisprResult {
-    builtin_op(a, "min")
-}
-
-// define a list of values
-// if "def" define in global env
-// if "=" define in local env
-fn builtin_var(e: &mut Lenv, a: &mut Lval, func: &str) -> BlisprResult {
-    let args = lval_pop(a, 0)?;
-    match *args {
-        Lval::Qexpr(names) => {
-            // grab the rest of the vals
-            let mut vals = Vec::new();
-            for _ in 0..a.len()? {
-                vals.push(lval_pop(a, 0)?);
-            }
-            let names_len = names.len();
-            let vals_len = vals.len();
-            // TODO assert all symbols?
-            if vals_len != names_len {
-                Err(BlisprError::NumArguments(names_len, vals_len))
-            } else {
-                for (k, v) in names.iter().zip(vals.iter()) {
-                    let scope = if func == "def" { "global" } else { "local" };
-                    debug!("adding key, value pair {}, {} to {} env {}", k, v, scope, e);
-                    let name = k.clone().as_string()?;
-                    if scope == "local" {
-                        e.put(name, v.clone());
-                    } else {
-                        //e.def(name, v.clone())?;
-                        debug!("warning: global scope definition unimplemented!");
-                        e.put(name, v.clone());
-                    }
-                }
-                Ok(lval_sexpr())
-            }
-        }
-        _ => Err(BlisprError::WrongType(
-            "qexpr".to_string(),
-            format!("{:?}", args),
-        )),
-    }
-}
-
-// BROKEN
-//pub fn builtin_def_stub(_v: &Lval) -> BlisprResult {
-//    Ok(lval_sexpr())
-//}
-
-// FOR NOW def IS LOCAL ENV ASSIGN
-fn builtin_def(e: &mut Lenv, v: &mut Lval) -> BlisprResult {
-    builtin_var(e, v, "def")
-}
-
-pub fn builtin_put_stub(_v: &mut Lval) -> BlisprResult {
-    Ok(lval_sexpr())
-}
-
-//BROKEN
-//fn builtin_put(e: &mut Lenv, v: &Lval) -> BlisprResult {
-//    builtin_var(e, v, "=")
-//}
-
-// Attach a value to the front of a qexpr
-pub fn builtin_cons(v: &mut Lval) -> BlisprResult {
-    let child_count = v.len()?;
-    if child_count != 2 {
-        return Err(BlisprError::NumArguments(2, child_count));
-    }
-    let new_elem = lval_pop(v, 0)?;
-    let qexpr = lval_pop(v, 0)?;
-    match *qexpr {
-        Lval::Qexpr(ref children) => {
-            let mut ret = lval_qexpr();
-            lval_add(&mut ret, &new_elem)?;
-            for c in children {
-                lval_add(&mut ret, &c.clone())?;
-            }
-            Ok(ret)
-        }
-        _ => Err(BlisprError::WrongType(
-            "qexpr".to_string(),
-            format!("{:?}", v),
-        )),
-    }
-}
-
-// correct call dispatched in lval_call
-pub fn builtin_eval_stub(_v: &mut Lval) -> BlisprResult {
-    Ok(lval_sexpr())
-}
-
-// Evaluate qexpr as a sexpr
-pub fn builtin_eval(e: &mut Lenv, v: &mut Lval) -> BlisprResult {
-    let qexpr = lval_pop(v, 0)?;
-    match *qexpr {
-        Lval::Qexpr(ref children) => {
-            let mut new_sexpr = lval_sexpr();
-            for c in children {
-                let cloned = Box::new(*c.clone());
-                lval_add(&mut new_sexpr, &cloned)?;
-            }
-            debug!("builtin_eval: {:?}", new_sexpr);
-            lval_eval(e, &mut new_sexpr)
-        }
-        _ => {
-            // add it back
-            lval_add(v, &qexpr)?;
-            lval_eval(e, v)
-        }
-    }
-}
-
-// terminate the program (or exit the prompt)
-pub fn builtin_exit(_v: &mut Lval) -> BlisprResult {
-    // always succeeds
-    println!("Goodbye!");
-    ::std::process::exit(0);
-}
-
-// Return the first element of a qexpr
-pub fn builtin_head(v: &mut Lval) -> BlisprResult {
-    let mut qexpr = lval_pop(v, 0)?;
-    match *qexpr {
-        Lval::Qexpr(ref mut children) => {
-            if children.is_empty() {
-                return Err(BlisprError::EmptyList);
-            }
-            debug!("builtin_head: Returning the first element");
-            Ok(children[0].clone())
-        }
-        _ => Err(BlisprError::WrongType(
-            "qexpr".to_string(),
-            format!("{:?}", qexpr),
-        )),
-    }
-}
-
-// Return everything but the last element of a qexpr
-pub fn builtin_init(v: &mut Lval) -> BlisprResult {
-    let qexpr = lval_pop(v, 0)?;
-    match *qexpr {
-        Lval::Qexpr(ref children) => {
-            let mut ret = lval_qexpr();
-            for item in children.iter().take(children.len() - 1) {
-                lval_add(&mut ret, &item.clone())?;
-            }
-            Ok(ret)
-        }
-        _ => Err(BlisprError::WrongType(
-            "qexpr".to_string(),
-            format!("{:?}", qexpr),
-        )),
-    }
-}
-
-// Join the children into one qexpr
-pub fn builtin_join(v: &mut Lval) -> BlisprResult {
-    let mut ret = lval_qexpr();
-    for _ in 0..v.len()? {
-        let next = lval_pop(v, 0)?;
-        match *next {
-            Lval::Qexpr(_) => {
-                lval_join(&mut ret, next)?;
-            }
-            _ => {
-                return Err(BlisprError::WrongType(
-                    "qexpr".to_string(),
-                    format!("{:?}", next),
-                ))
-            }
-        }
-    }
-    Ok(ret)
-}
-
-//builtin_lambda returns a lambda lval from two lists of symbols
-pub fn builtin_lambda(v: &mut Lval) -> BlisprResult {
-    // ensure there's only two arguments
-    let child_count = v.len()?;
-    if child_count != 2 {
-        return Err(BlisprError::NumArguments(2, child_count));
-    }
-
-    // first qexpr should contain only symbols - lval.as_string().is_ok()
-    let formals = lval_pop(v, 0)?;
-    let formals_ret = formals.clone(); // ewwww but it gets moved on me?!  this might be why Rc<> - it doesn't need to mutate
-    let body = lval_pop(v, 0)?;
-    match *formals {
-        Lval::Qexpr(contents) => {
-            for cell in contents {
-                if cell.as_string().is_err() {
-                    return Err(BlisprError::WrongType(
-                        "Symbol".to_string(),
-                        format!("{:?}", cell),
-                    ));
-                }
-            }
-            match *body {
-                Lval::Qexpr(_) => Ok(lval_lambda(HashMap::new(), formals_ret, body)),
-                _ => Err(BlisprError::WrongType(
-                    "Q-Expression".to_string(),
-                    format!("{:?}", body),
-                )),
-            }
-        }
-        _ => Err(BlisprError::WrongType(
-            "Q-Expression".to_string(),
-            format!("{:?}", formals),
-        )),
-    }
-}
-
-// make sexpr into a qexpr
-pub fn builtin_list(v: &mut Lval) -> BlisprResult {
-    match *v {
-        Lval::Sexpr(ref children) => {
-            debug!("builtin_list: Building qexpr from {:?}", children);
-            let mut new_qexpr = lval_qexpr();
-            for c in children {
-                let cloned = Box::new(*c.clone());
-                lval_add(&mut new_qexpr, &cloned)?;
-            }
-            Ok(new_qexpr)
-        }
-        _ => Ok(Box::new(v.clone())),
-    }
-}
-
-pub fn builtin_len(v: &mut Lval) -> BlisprResult {
-    let child_count = v.len()?;
-    match child_count {
-        1 => {
-            let qexpr = lval_pop(v, 0)?;
-            match *qexpr {
-                Lval::Qexpr(_) => {
-                    debug!("Returning length of {:?}", qexpr);
-                    Ok(lval_num(qexpr.len()? as i64))
-                }
-                _ => Err(BlisprError::WrongType(
-                    "qexpr".to_string(),
-                    format!("{:?}", qexpr),
-                )),
-            }
-        }
-        _ => Err(BlisprError::NumArguments(1, child_count)),
-    }
-}
-
-pub fn builtin_printenv_stub(_v: &mut Lval) -> BlisprResult {
-    Ok(lval_sexpr())
-}
-
-// Print all the named variables in the environment
-pub fn builtin_printenv(e: &mut Lenv) -> BlisprResult {
-    // we don't use the input
-    lval_eval(e, &mut *e.list_all()?)
-}
-
-pub fn builtin_tail(v: &mut Lval) -> BlisprResult {
-    let mut qexpr = lval_pop(v, 0)?;
-    debug!("Returning tail of {:?}", qexpr);
-    match *qexpr {
-        Lval::Qexpr(ref mut children) => {
-            if children.is_empty() {
-                return Err(BlisprError::EmptyList);
-            }
-            let mut ret = lval_qexpr();
-            for c in &children[1..] {
-                lval_add(&mut ret, &c.clone())?;
-            }
-            Ok(ret)
-        }
-        _ => Err(BlisprError::WrongType(
-            "qexpr".to_string(),
-            format!("{:?}", qexpr),
-        )),
-    }
-}
-
-// Call a Lval::Fun(f) on an argument list
-// This will handle both builtins and lambdas
-pub fn lval_call(e: &mut Lenv, f: Lval, args: &mut Lval) -> BlisprResult {
-    match f {
-        Lval::Fun(func) => {
-            match func {
-                // if its one of the ones that need an environment, intercept and route to the properly typed fn
-                LvalFun::Builtin(name, fp) => match name.as_str() {
-                    "eval" => builtin_eval(e, args),
-                    "def" => builtin_def(e, args),
-                    //"=" => builtin_put(e, args),
-                    "printenv" => builtin_printenv(e),
-                    // Otherwise, just apply the actual stored function pointer
-                    _ => fp(args),
-                },
-                LvalFun::Lambda(env, mut formals, body) => {
-                    debug!(
-                        "Executing lambda.  Environment: {:?}, Formals: {:?}, body: {:?}",
-                        env, formals, body
-                    );
-                    // If it's a Lambda, bind arguments to a new local environment
-
-                    // First, build the lookup hashmap
-                    let mut new_env: HashMap<String, Box<Lval>> = HashMap::new();
-                    // grab the argument and body
-                    let given = args.len()?;
-                    let total = formals.len()?;
-
-                    while args.len()? > 0 {
-                        // if we've run out of args to bind, error
-                        if formals.len()? == 0 {
-                            return Err(BlisprError::NumArguments(total, given));
-                        }
-
-                        // grab first symbol from formals
-                        let sym = lval_pop(&mut formals, 0)?;
-
-                        // special case to handle '&'
-                        if &sym.as_string()? == "&" {
-                            // make sure there's one symbol left
-                            if formals.len()? != 1 {
-                                return Err(BlisprError::FunctionFormat);
-                            }
-
-                            // next formal should be found to remaining args
-                            let next_sym = lval_pop(&mut formals, 0)?;
-                            let arglist = builtin_list(args)?;
-                            let curr = new_env
-                                .entry(next_sym.as_string()?)
-                                .or_insert(arglist.clone());
-                            if *curr != arglist {
-                                *curr = arglist.clone();
-                            }
-                            break;
-                        }
-
-                        // grab next argument from list
-                        let val = lval_pop(args, 0)?;
-
-                        // bind a copy to the function's environment
-                        debug!("lval_call: adding {},{} to local fn environment", sym, val);
-                        let curr = new_env.entry(sym.as_string()?).or_insert(val.clone());
-                        // if we're overwriting, overwrite!
-                        if *curr != val {
-                            *curr = val.clone();
-                        }
-                    }
-                    // Use the lookup map to initialize the new child env for evaluation
-                    let mut local_env = Lenv::new(Some(new_env.clone()), Some(e));
-                    // if all formals have been bound
-                    if formals.len()? == 0 {
-                        // Evaluate and return
-                        // first, apply any held by the lambda.
-                        for (k, v) in env {
-                            local_env.put(k, v);
-                        }
-                        let mut ret = lval_sexpr();
-                        lval_add(&mut ret, &body)?;
-                        debug!("lval_call: evaluating fully applied lambda {}", ret);
-                        // evaluate with the environment of the function, which now has the env this was called with as a parent.
-                        builtin_eval(&mut local_env, &mut ret)
-                    } else {
-                        // Otherwise return partially evaluated function
-                        // build a new lval for it
-                        debug!("Returning partially applied lambda");
-                        Ok(lval_lambda(new_env, formals.clone(), body.clone()))
-                    }
-                }
-            }
-        }
-        _ => Err(BlisprError::WrongType(
-            "Function".to_string(),
-            format!("{:?}", f),
-        )),
-    }
-}
-
-// Given a slice of boxed Lvals, return a single evaluated sexpr
-fn eval_cells(e: &mut Lenv, cells: &[Box<Lval>]) -> BlisprResult {
-    cells.iter().fold(Ok(lval_sexpr()), |acc, c| {
-        match acc {
-            Ok(mut lval) => {
-                lval_add(&mut lval, &*lval_eval(e, &mut c.clone())?)?;
-                Ok(lval)
-            }
-            // it's just a Result so we can bubble errors out of the fold
-            Err(_) => unreachable!(),
-        }
-    })
-}
-
-// Fully evaluate an `Lval`
-pub fn lval_eval(e: &mut Lenv, v: &mut Lval) -> BlisprResult {
-    let child_count;
-    let mut args_eval;
-    match v {
-        Lval::Blispr(forms) => {
-            // If it's multiple, evaluate each and return the result of the last
-            args_eval = eval_cells(e, forms)?;
-            let forms_len = args_eval.len()?;
-            return Ok(lval_pop(&mut args_eval, forms_len - 1)?);
-        }
-        Lval::Sym(s) => {
-            // If it's a symbol, perform an environment lookup
-            let result = e.get(&s)?;
-            debug!(
-                "lval_eval: Symbol lookup - retrieved {:?} from key {:?}",
-                result, s
-            );
-            // The environment stores Lvals ready to go, we're done
-            return Ok(result);
-        }
-        Lval::Sexpr(ref mut cells) => {
-            // If it's a Sexpr, we're going to continue past this match
-            // First, though, recursively evaluate each child with lval_eval()
-            debug!("lval_eval: Sexpr, evaluating children");
-            // grab the length and evaluate the children
-            child_count = cells.len();
-            args_eval = eval_cells(e, cells)?;
-        }
-        // if it's not a sexpr, we're done, return as is
-        _ => {
-            debug!("lval_eval: Non-sexpr: {:?}", v);
-            return Ok(Box::new(v.clone()));
-        }
-    }
-    if child_count == 0 {
-        // It was a Sexpr, but it was empty.  We're done, return it
-        Ok(Box::new(v.clone()))
-    } else if child_count == 1 {
-        // Single expression
-        debug!("Single-expression");
-        lval_eval(e, &mut *lval_pop(v, 0)?)
-    } else {
-        // Function call
-        // We'll pop the first element off and attempt to call it on the rest of the elements
-        // lval_call will handle typechecking fp
-        let fp = lval_pop(&mut args_eval, 0)?;
-        debug!("Calling function {:?} on {:?}", fp, v);
-        lval_call(e, *fp, &mut *args_eval)
-    }
-}
--- a/src/repl/lpus.pest
+++ b/src/repl/lpus.pest
@ -1,19 +0,0 @@
-COMMENT = _{ "/*" ~ (!"*/" ~ ANY)* ~ "*/" }
-WHITESPACE = _{ (" " | NEWLINE ) }
-
-num = @{ int }
-    int = { ("+" | "-")? ~ digit+ }
-    digit = { '0'..'9' }
-
-symbol = @{ (letter | digit | "_" | arithmetic_ops | "\\" | comparison_ops | "&")+ }
-    letter = { 'a' .. 'z' | 'A' .. 'Z' }
-    arithmetic_ops = { "+" | "-" | "*" | "/" | "%" | "^" }
-    comparison_ops = { "=" | "<" | ">" | "!" }
-
-sexpr = { "(" ~ expr* ~ ")" }
-
-qexpr = { "{" ~ expr* ~ "}" }
-
-expr = { num | symbol | sexpr | qexpr }
-
-program = { SOI ~ expr* ~ EOI }
--- a/src/repl/lval.rs
+++ b/src/repl/lval.rs
@ -1,182 +0,0 @@
-use std::{collections::HashMap, fmt};
-
-// The recursive types hold their children in one of these bad boys
-// TODO Should this be a VecDeque or a LinkedList instead?
-type LvalChildren = Vec<Box<Lval>>;
-pub type LBuiltin = fn(&mut Lval) -> ReplResult;
-
-// There are two types of function - builtin and lambda
-#[derive(Clone)]
-pub enum LvalFun {
-    Builtin(String, LBuiltin), // (name, function pointer)
-    Lambda(HashMap<String, Box<Lval>>, Box<Lval>, Box<Lval>), // (environment(?), formals, body), both should be Qexpr // TODO these should both be Rc<T>
-}
-
-// The book has a pointer to an Lenv in the Lambda
-// I instead just store a plain old hashmap of any extras
-// it's then applied in lval_call
-
-// The main type - all possible Blispr values
-#[derive(Debug, Clone, PartialEq)]
-pub enum Lval {
-    Lpus(LvalChildren),
-    Fun(LvalFun),
-    Num(i64),
-    Sym(String),
-    Sexpr(LvalChildren),
-    Qexpr(LvalChildren),
-}
-
-impl Lval {
-    pub fn as_num(&self) -> Result<i64> {
-        match *self {
-            Lval::Num(n_num) => Ok(n_num),
-            _ => Err("".into()),
-        }
-    }
-    pub fn as_string(&self) -> Result<String> {
-        match self {
-            Lval::Sym(s) => Ok(s.to_string()),
-            _ => Err(BlisprError::WrongType(
-                "symbol".to_string(),
-                format!("{}", self),
-            )),
-        }
-    }
-    pub fn len(&self) -> Result<usize> {
-        match *self {
-            Lval::Sexpr(ref children) | Lval::Qexpr(ref children) | Lval::Blispr(ref children) => {
-                Ok(children.len())
-            }
-            _ => Err(BlisprError::NoChildren),
-        }
-    }
-}
-
-impl fmt::Debug for LvalFun {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        match self {
-            LvalFun::Builtin(name, _) => write!(f, "Builtin({})", name),
-            LvalFun::Lambda(env, formals, body) => {
-                write!(f, "Lambda({{{:?}}},{{{}}},{{{}}})", env, formals, body)
-            }
-        }
-    }
-}
-
-impl PartialEq for LvalFun {
-    fn eq(&self, other: &LvalFun) -> bool {
-        match self {
-            LvalFun::Builtin(name, _) => match other {
-                LvalFun::Builtin(other_name, _) => name == other_name,
-                _ => false,
-            },
-            LvalFun::Lambda(env, formals, body) => match other {
-                LvalFun::Lambda(other_env, other_f, other_b) => {
-                    formals == other_f && body == other_b && env == other_env
-                }
-                _ => false,
-            },
-        }
-    }
-}
-
-impl fmt::Display for Lval {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        match self {
-            Lval::Blispr(_cells) => write!(f, "<toplevel>"),
-            Lval::Fun(lf) => match lf {
-                LvalFun::Builtin(name, _) => write!(f, "<builtin: {}>", name),
-                LvalFun::Lambda(_, formals, body) => write!(f, "(\\ {} {})", formals, body),
-            },
-            Lval::Num(n) => write!(f, "{}", n),
-            Lval::Sym(s) => write!(f, "{}", s),
-            Lval::Sexpr(cell) => write!(f, "({})", lval_expr_print(cell)),
-            Lval::Qexpr(cell) => write!(f, "{{{}}}", lval_expr_print(cell)),
-        }
-    }
-}
-
-fn lval_expr_print(cell: &[Box<Lval>]) -> String {
-    let mut ret = String::new();
-    for i in 0..cell.len() {
-        ret.push_str(&format!("{}", cell[i]));
-        if i < cell.len() - 1 {
-            ret.push_str(" ");
-        }
-    }
-    ret
-}
-
-// Constructors
-// Each allocates a brand new boxed Lval
-// The recursive types start empty
-
-pub fn lval_blispr() -> Box<Lval> {
-    Box::new(Lval::Blispr(Vec::new()))
-}
-
-pub fn lval_builtin(f: LBuiltin, name: &str) -> Box<Lval> {
-    Box::new(Lval::Fun(LvalFun::Builtin(name.to_string(), f)))
-}
-
-pub fn lval_lambda(
-    env: HashMap<String, Box<Lval>>,
-    formals: Box<Lval>,
-    body: Box<Lval>,
-) -> Box<Lval> {
-    Box::new(Lval::Fun(LvalFun::Lambda(env, formals, body)))
-}
-
-pub fn lval_num(n: i64) -> Box<Lval> {
-    Box::new(Lval::Num(n))
-}
-
-pub fn lval_sym(s: &str) -> Box<Lval> {
-    Box::new(Lval::Sym(s.into()))
-}
-
-pub fn lval_sexpr() -> Box<Lval> {
-    Box::new(Lval::Sexpr(Vec::new()))
-}
-
-pub fn lval_qexpr() -> Box<Lval> {
-    Box::new(Lval::Qexpr(Vec::new()))
-}
-
-// Manipulating children
-
-// Add lval x to lval::sexpr or lval::qexpr v
-pub fn lval_add(v: &mut Lval, x: &Lval) -> Result<()> {
-    match *v {
-        Lval::Sexpr(ref mut children)
-        | Lval::Qexpr(ref mut children)
-        | Lval::Blispr(ref mut children) => {
-            children.push(Box::new(x.clone()));
-        }
-        _ => return Err(BlisprError::NoChildren),
-    }
-    Ok(())
-}
-
-// Extract single element of sexpr at index i
-pub fn lval_pop(v: &mut Lval, i: usize) -> BlisprResult {
-    match *v {
-        Lval::Sexpr(ref mut children)
-        | Lval::Qexpr(ref mut children)
-        | Lval::Blispr(ref mut children) => {
-            let ret = (&children[i]).clone();
-            children.remove(i);
-            Ok(ret)
-        }
-        _ => Err(BlisprError::NoChildren),
-    }
-}
-
-// Add each cell in y to x
-pub fn lval_join(x: &mut Lval, mut y: Box<Lval>) -> Result<()> {
-    while y.len()? > 0 {
-        lval_add(x, &*lval_pop(&mut y, 0)?)?;
-    }
-    Ok(())
-}
--- a/src/repl/parser.rs
+++ b/src/repl/parser.rs
@ -1,56 +0,0 @@
-use pest::{iterators::Pair, Parser};
-
-#[derive(Parser)]
-#[grammar = "lpus.pest"]
-pub struct LpusParser;
-
-fn is_bracket_or_eoi(parsed: &Pair<Rule>) -> bool {
-    if parsed.as_rule() == Rule::EOI {
-        return true;
-    }
-    let c = parsed.as_str();
-    c == "(" || c == ")" || c == "{" || c == "}"
-}
-
-// Read a rule with children into the given containing Lval
-fn read_to_lval(mut v: &mut Lval, parsed: Pair<Rule>) -> Result<()> {
-    for child in parsed.into_inner() {
-        if is_bracket_or_eoi(&child) {
-            continue;
-        }
-        lval_add(&mut v, &*lval_read(child)?)?;
-    }
-    Ok(())
-}
-
-fn lval_read(parsed: Pair<Rule>) -> ReplResult {
-    match parsed.as_rule() {
-        // Rule::program => {
-        //     let mut ret = lval_lpus();
-        //     read_to_lval(&mut ret, parsed)?;
-        //     Ok(ret)
-        // }
-        // Rule::expr => lval_read(parsed.into_inner().next().unwrap()),
-        Rule::sexpr => {
-            let mut ret = lval_sexpr();
-            read_to_lval(&mut ret, parsed)?;
-            Ok(ret)
-        }
-        // Rule::qexpr => {
-        //     let mut ret = lval_qexpr();
-        //     read_to_lval(&mut ret, parsed)?;
-        //     Ok(ret)
-        // }
-        Rule::num => Ok(lval_num(parsed.as_str().parse::<i64>()?)),
-        Rule::symbol => Ok(lval_sym(parsed.as_str())),
-        _ => unreachable!(), // COMMENT/WHITESPACE etc
-    }
-}
-
-pub fn eval_str(e: &mut Lenv, s: &str) -> ReplResult {
-    let parsed = LpusParser::parse(Rule::sexpr, s)?.next().unwrap();
-    // debug!("{}", parsed);
-    let mut lval_ptr = lval_read(parsed)?;
-    // debug!("Parsed: {:?}", *lval_ptr);
-    lval_eval(e, &mut *lval_ptr)
-}
--- a/src/repl/repl.rs
+++ b/src/repl/repl.rs
@ -1,44 +0,0 @@
-use rustyline::error::ReadlineError;
-use rustyline::Editor;
-
-fn repl(e: &mut Lenv) -> Result<()> {
-    println!("LPUS v0.0.1");
-    println!("Use exit(), Ctrl-C, or Ctrl-D to exit prompt");
-
-    let mut rl = Editor::<()>::new();
-    if rl.load_history("./.lpus-history.txt").is_err() {
-        println!("No history found.");
-    }
-
-    loop {
-        let input = rl.readline("lpus> ");
-
-        match input {
-            Ok(line) => {
-                rl.add_history_entry(line.as_ref());
-                print_eval_result(eval_str(e, &line));
-            }
-            Err(ReadlineError::Interrupted) => {
-                info!("CTRL-C");
-                break;
-            }
-            Err(ReadlineError::Eof) => {
-                info!("CTRL-D");
-                break;
-            }
-            Err(err) => {
-                warn!("Error: {:?}", err);
-                break;
-            }
-        }
-    }
-    rl.save_history("./.blispr-history.txt")?;
-    Ok(())
-}
-
-fn print_eval_result(v: ReplResult) {
-    match v {
-        Ok(res) => println!("{}", res),
-        Err(e) => eprintln!("Error: {}", e),
-    }
-}
--- a/src/windows.rs
+++ b/src/windows.rs
@ -1,257 +1,366 @@
-use std::ffi::{c_void, CString};
-use std::mem::{transmute, size_of_val};
-use std::ptr::null_mut;
-use std::time::{SystemTime, UNIX_EPOCH};
-use widestring::U16CString;
-
-use winapi::shared::ntdef::*;
-use winapi::shared::minwindef::{DWORD, HKEY, HMODULE};
-use winapi::um::winnt::{
-    SE_PRIVILEGE_ENABLED, TOKEN_PRIVILEGES, TOKEN_ADJUST_PRIVILEGES, LUID_AND_ATTRIBUTES,
-    REG_DWORD, REG_SZ, REG_OPTION_NON_VOLATILE, KEY_WRITE,
-    PRTL_OSVERSIONINFOW, OSVERSIONINFOW,
-    FILE_ATTRIBUTE_NORMAL, GENERIC_READ, GENERIC_WRITE
-};
-
-use winapi::um::ioapiset::{DeviceIoControl};
-use winapi::um::errhandlingapi::{GetLastError};
-use winapi::um::fileapi::{CreateFileA, CREATE_ALWAYS};
-use winapi::um::handleapi::{INVALID_HANDLE_VALUE, CloseHandle};
-use winapi::um::libloaderapi::{LoadLibraryA, GetProcAddress};
-use winapi::um::processthreadsapi::{GetCurrentProcess, OpenProcessToken};
-use winapi::um::sysinfoapi::{GetTickCount64};
-use winapi::um::securitybaseapi::{AdjustTokenPrivileges};
-use winapi::um::winbase::{LookupPrivilegeValueA};
-use winapi::um::winreg::{RegCreateKeyExA, RegSetValueExA, RegCloseKey, HKEY_LOCAL_MACHINE};
-
-const STR_DRIVER_REGISTRY_PATH: &str = "\\Registry\\Machine\\System\\CurrentControlSet\\Services\\lpus";
-
-#[allow(dead_code)]
-#[derive(Debug, Copy, Clone)]
-pub enum WindowsVersion {
-    Windows10_2015,
-    Windows10_2016,
-    Windows10_2017,
-    Windows10_2018,
-    Windows10_2019,
-    Windows10_2020,
-    Windows10FastRing,
-    Windows10VersionUnknown
-}
-
-#[allow(dead_code)]
-#[derive(Copy, Clone)]
-pub struct WindowsFFI {
-    pub version_info: OSVERSIONINFOW,
-    pub short_version: WindowsVersion,
-    driver_handle: HANDLE,
-    ntdll: HMODULE,
-    nt_load_driver: extern "system" fn(PUNICODE_STRING) -> NTSTATUS,
-    nt_unload_driver: extern "system" fn(PUNICODE_STRING) -> NTSTATUS,
-    rtl_init_unicode_str: extern "system" fn(PUNICODE_STRING, PCWSTR),
-    rtl_get_version: extern "system" fn(PRTL_OSVERSIONINFOW) -> NTSTATUS,
-}
-
-impl WindowsFFI {
-    pub fn new() -> Self {
-        let str_ntdll = CString::new("ntdll").unwrap();
-        let str_nt_load_driver = CString::new("NtLoadDriver").unwrap();
-        let str_nt_unload_driver = CString::new("NtUnloadDriver").unwrap();
-        let str_rtl_init_unicode_str = CString::new("RtlInitUnicodeString").unwrap();
-        let str_rtl_get_version = CString::new("RtlGetVersion").unwrap();
-        let str_se_load_driver_privilege = CString::new("SeLoadDriverPrivilege").unwrap();
-
-        let str_driver_path = CString::new("\\SystemRoot\\System32\\DRIVERS\\lpus.sys").unwrap();
-        let str_registry_path = CString::new("System\\CurrentControlSet\\Services\\lpus").unwrap();
-        let str_type = CString::new("Type").unwrap();
-        let str_error_control = CString::new("ErrorControl").unwrap();
-        let str_start = CString::new("Start").unwrap();
-        let str_image_path = CString::new("ImagePath").unwrap();
-
-        let mut version_info = OSVERSIONINFOW {
-            dwOSVersionInfoSize: 0u32,
-            dwMajorVersion: 0u32,
-            dwMinorVersion: 0u32,
-            dwBuildNumber: 0u32,
-            dwPlatformId: 0u32,
-            szCSDVersion: [0u16; 128],
-        };
-
-        let ntdll: HMODULE;
-        let nt_load_driver: extern "system" fn(PUNICODE_STRING) -> NTSTATUS;
-        let nt_unload_driver: extern "system" fn(PUNICODE_STRING) -> NTSTATUS;
-        let rtl_init_unicode_str: extern "system" fn(PUNICODE_STRING, PCWSTR);
-        let rtl_get_version: extern "system" fn(PRTL_OSVERSIONINFOW) -> NTSTATUS;
-
-        // some pointer unsafe C code
-        unsafe {
-            ntdll = LoadLibraryA(str_ntdll.as_ptr());
-            let nt_load_driver_ = GetProcAddress(ntdll, str_nt_load_driver.as_ptr());
-            let nt_unload_driver_ = GetProcAddress(ntdll, str_nt_unload_driver.as_ptr());
-            let rtl_init_unicode_str_ = GetProcAddress(ntdll, str_rtl_init_unicode_str.as_ptr());
-            let rtl_get_version_ = GetProcAddress(ntdll, str_rtl_get_version.as_ptr());
-
-            nt_load_driver = transmute(nt_load_driver_);
-            nt_unload_driver = transmute(nt_unload_driver_);
-            rtl_init_unicode_str = transmute(rtl_init_unicode_str_);
-            rtl_get_version = transmute(rtl_get_version_);
-
-            // setup registry
-            let mut registry_key: HKEY = null_mut();
-            RegCreateKeyExA(
-                HKEY_LOCAL_MACHINE, str_registry_path.as_ptr(),
-                0, null_mut(),
-                REG_OPTION_NON_VOLATILE, KEY_WRITE,
-                null_mut(), &mut registry_key, null_mut()
-            );
-            let type_value: [u8; 4] = 1u32.to_le_bytes();
-            let error_control_value: [u8; 4] = 1u32.to_le_bytes();
-            let start_value: [u8; 4] = 3u32.to_le_bytes();
-            let registry_values = [
-                (str_type.as_ptr(), REG_DWORD, type_value.as_ptr(), 4),
-                (str_error_control.as_ptr(), REG_DWORD, error_control_value.as_ptr(), 4),
-                (str_start.as_ptr(), REG_DWORD, start_value.as_ptr(), 4),
-                (str_image_path.as_ptr(), REG_SZ,
-                    str_driver_path.as_ptr() as *const u8, str_driver_path.to_bytes().len() + 1)
-            ];
-            for &(key, keytype, value_ptr, size_in_bytes) in &registry_values {
-                RegSetValueExA(
-                    registry_key, key, 0,
-                    keytype, value_ptr, size_in_bytes as u32
-                );
-            }
-            RegCloseKey(registry_key);
-
-            // Setup privilege SeLoadDriverPrivilege
-            let mut token_handle: HANDLE = null_mut();
-            let mut luid = LUID::default();
-            OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES, &mut token_handle);
-            LookupPrivilegeValueA(null_mut(), str_se_load_driver_privilege.as_ptr(), &mut luid);
-            let mut new_token_state = TOKEN_PRIVILEGES {
-                PrivilegeCount: 1,
-                Privileges: [LUID_AND_ATTRIBUTES {
-                    Luid: luid,
-                    Attributes: SE_PRIVILEGE_ENABLED
-                }]
-            };
-            AdjustTokenPrivileges(
-                token_handle, 0, &mut new_token_state, 16, null_mut(), null_mut());
-            CloseHandle(token_handle);
-        }
-
-        rtl_get_version(&mut version_info);
-
-        let short_version = match version_info.dwBuildNumber {
-            17134 | 17763 => WindowsVersion::Windows10_2018,
-            18362 | 18363 => WindowsVersion::Windows10_2019,
-            19041 => WindowsVersion::Windows10_2020,
-            _ if version_info.dwBuildNumber >= 19536 => WindowsVersion::Windows10FastRing,
-            _ => WindowsVersion::Windows10VersionUnknown
-        };
-
-        Self {
-            version_info,
-            short_version,
-            driver_handle: INVALID_HANDLE_VALUE,
-            ntdll,
-            nt_load_driver,
-            nt_unload_driver,
-            rtl_init_unicode_str,
-            rtl_get_version
-        }
-    }
-
-    pub fn driver_loaded(self) -> bool {
-        self.driver_handle != INVALID_HANDLE_VALUE
-    }
-
-    pub fn load_driver(&mut self) -> NTSTATUS {
-        // TODO: Move this to new()
-        // If we move this function to new(), self.driver_handle will be init, and thus no mut here
-        let str_driver_reg = U16CString::from_str(STR_DRIVER_REGISTRY_PATH).unwrap();
-        let mut str_driver_reg_unicode = UNICODE_STRING::default();
-        (self.rtl_init_unicode_str)(&mut str_driver_reg_unicode, str_driver_reg.as_ptr() as *const u16);
-        let status = (self.nt_load_driver)(&mut str_driver_reg_unicode);
-
-        let filename = CString::new("\\\\.\\poolscanner").unwrap();
-        let driver_file_handle: HANDLE = unsafe {
-            CreateFileA(filename.as_ptr(),
-                        GENERIC_READ | GENERIC_WRITE,
-                        0, null_mut(), CREATE_ALWAYS,
-                        FILE_ATTRIBUTE_NORMAL, null_mut())
-        };
-
-        if driver_file_handle == INVALID_HANDLE_VALUE {
-            println!("Driver CreateFileA failed");
-        }
-        else {
-            self.driver_handle = driver_file_handle;
-        }
-        status
-    }
-
-    pub fn unload_driver(&self) -> NTSTATUS {
-        let str_driver_reg = U16CString::from_str(STR_DRIVER_REGISTRY_PATH).unwrap();
-        let mut str_driver_reg_unicode = UNICODE_STRING::default();
-        (self.rtl_init_unicode_str)(&mut str_driver_reg_unicode, str_driver_reg.as_ptr());
-        (self.nt_unload_driver)(&mut str_driver_reg_unicode)
-    }
-
-    #[allow(dead_code)]
-    pub fn get_build_number(&self) -> DWORD {
-        self.version_info.dwBuildNumber
-    }
-
-    #[allow(dead_code)]
-    pub fn print_version(&self) {
-        println!("Windows version: {}.{}.{} {:?}",
-            self.version_info.dwMajorVersion,
-            self.version_info.dwMinorVersion,
-            self.version_info.dwBuildNumber,
-            self.short_version
-        );
-    }
-
-    pub fn valid_process_time(&self, filetime: u64) -> bool {
-        // https://www.frenk.com/2009/12/convert-filetime-to-unix-timestamp/
-        let windows_epoch_diff = 11644473600000 * 10000;
-        if filetime < windows_epoch_diff {
-            return false;
-        }
-        let system_up_time_ms = unsafe { GetTickCount64() };
-        let process_time_epoch = (filetime - windows_epoch_diff) / 10000;
-        let now_ms = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time went backwards").as_millis() as u64;
-        let system_start_up_time_ms = now_ms - system_up_time_ms;
-
-        if process_time_epoch < system_start_up_time_ms {
-            false
-        } else if process_time_epoch > now_ms {
-            false
-        } else {
-            true
-        }
-    }
-
-    pub fn device_io<T, E>(&self, code: DWORD, inbuf: &mut T, outbuf: &mut E) -> DWORD {
-        self.device_io_raw(code,
-                           inbuf as *mut _ as *mut c_void, size_of_val(inbuf) as DWORD,
-                           outbuf as *mut _ as *mut c_void, size_of_val(outbuf) as DWORD)
-    }
-
-    pub fn device_io_raw(&self, code: DWORD,
-                         input_ptr: *mut c_void, input_len: DWORD,
-                         output_ptr: *mut c_void, output_len: DWORD) -> DWORD {
-        // println!("driver loaded: {}; device_io_code: {}", self.driver_loaded(), code);
-        let mut bytes_returned: DWORD = 0;
-        unsafe {
-            let status = DeviceIoControl(self.driver_handle, code,
-                                         input_ptr, input_len,
-                                         output_ptr, output_len,
-                                         &mut bytes_returned, null_mut());
-            if status == 0 {
-                println!("device io failed: last error {}", GetLastError());
-            }
-        };
-        bytes_returned
-    }
-}
+use std::ffi::{c_void, CString};
+use std::mem::{size_of_val, transmute};
+use std::ptr::null_mut;
+use std::time::{SystemTime, UNIX_EPOCH};
+
+use app_dirs::{app_dir, AppDataType};
+use widestring::U16CString;
+
+use crate::APP_INFO;
+
+use winapi::shared::minwindef::{DWORD, HKEY, HMODULE};
+use winapi::shared::ntdef::*;
+use winapi::um::winnt::{
+    FILE_ATTRIBUTE_NORMAL, GENERIC_READ, GENERIC_WRITE, KEY_WRITE, LUID_AND_ATTRIBUTES,
+    OSVERSIONINFOW, PRTL_OSVERSIONINFOW, REG_DWORD, REG_OPTION_NON_VOLATILE, REG_SZ,
+    SE_PRIVILEGE_ENABLED, TOKEN_ADJUST_PRIVILEGES, TOKEN_PRIVILEGES,
+};
+
+use winapi::um::errhandlingapi::GetLastError;
+use winapi::um::fileapi::{CreateFileA, CREATE_ALWAYS};
+use winapi::um::handleapi::{CloseHandle, INVALID_HANDLE_VALUE};
+use winapi::um::ioapiset::DeviceIoControl;
+use winapi::um::libloaderapi::{GetProcAddress, LoadLibraryA};
+use winapi::um::processthreadsapi::{GetCurrentProcess, OpenProcessToken};
+use winapi::um::securitybaseapi::AdjustTokenPrivileges;
+use winapi::um::sysinfoapi::GetTickCount64;
+use winapi::um::winbase::LookupPrivilegeValueA;
+use winapi::um::winreg::{RegCloseKey, RegCreateKeyExA, RegSetValueExA, HKEY_LOCAL_MACHINE};
+
+const STR_DRIVER_REGISTRY_PATH: &str =
+    "\\Registry\\Machine\\System\\CurrentControlSet\\Services\\lpus";
+
+#[allow(dead_code)]
+#[derive(Debug, Copy, Clone, PartialEq, PartialOrd)]
+pub enum WindowsVersion {
+    Windows7,
+    Windows8,
+    Windows10Legacy,
+    Windows10_2015,
+    Windows10_2016,
+    Windows10_2017,
+    Windows10_2018,
+    Windows10_2019,
+    Windows10_2020,
+    WindowsFastRing,
+    WindowsUnknown,
+}
+
+impl WindowsVersion {
+    pub fn not_supported(self) -> bool {
+        match self {
+            WindowsVersion::Windows10Legacy
+            | WindowsVersion::Windows10_2015
+            | WindowsVersion::Windows10_2016
+            | WindowsVersion::Windows10_2017
+            | WindowsVersion::Windows8
+            | WindowsVersion::WindowsUnknown => true,
+            _ => false,
+        }
+    }
+    pub fn is_supported(self) -> bool {
+        !self.not_supported()
+    }
+}
+
+#[allow(dead_code)]
+#[derive(Copy, Clone)]
+pub struct WindowsFFI {
+    pub version_info: OSVERSIONINFOW,
+    pub short_version: WindowsVersion,
+    driver_handle: HANDLE,
+    ntdll: HMODULE,
+    nt_load_driver: extern "system" fn(PUNICODE_STRING) -> NTSTATUS,
+    nt_unload_driver: extern "system" fn(PUNICODE_STRING) -> NTSTATUS,
+    rtl_init_unicode_str: extern "system" fn(PUNICODE_STRING, PCWSTR),
+    rtl_get_version: extern "system" fn(PRTL_OSVERSIONINFOW) -> NTSTATUS,
+}
+
+impl WindowsFFI {
+    pub fn new() -> Self {
+        let str_ntdll = CString::new("ntdll").unwrap();
+        let str_nt_load_driver = CString::new("NtLoadDriver").unwrap();
+        let str_nt_unload_driver = CString::new("NtUnloadDriver").unwrap();
+        let str_rtl_init_unicode_str = CString::new("RtlInitUnicodeString").unwrap();
+        let str_rtl_get_version = CString::new("RtlGetVersion").unwrap();
+        let str_se_load_driver_privilege = CString::new("SeLoadDriverPrivilege").unwrap();
+        let str_driver_path = {
+            let mut driver_location =
+                app_dir(AppDataType::UserData, &APP_INFO, &format!("driver")).unwrap();
+            driver_location.push("lpus.sys");
+            if driver_location.is_file() {
+                let p = driver_location.to_str().unwrap();
+                CString::new(format!("\\??\\{}", p)).unwrap()
+            } else {
+                CString::new("\\SystemRoot\\System32\\DRIVERS\\lpus.sys").unwrap()
+            }
+        };
+        let str_registry_path = CString::new("System\\CurrentControlSet\\Services\\lpus").unwrap();
+        let str_type = CString::new("Type").unwrap();
+        let str_error_control = CString::new("ErrorControl").unwrap();
+        let str_start = CString::new("Start").unwrap();
+        let str_image_path = CString::new("ImagePath").unwrap();
+
+        let mut version_info = OSVERSIONINFOW {
+            dwOSVersionInfoSize: 0u32,
+            dwMajorVersion: 0u32,
+            dwMinorVersion: 0u32,
+            dwBuildNumber: 0u32,
+            dwPlatformId: 0u32,
+            szCSDVersion: [0u16; 128],
+        };
+
+        let ntdll: HMODULE;
+        let nt_load_driver: extern "system" fn(PUNICODE_STRING) -> NTSTATUS;
+        let nt_unload_driver: extern "system" fn(PUNICODE_STRING) -> NTSTATUS;
+        let rtl_init_unicode_str: extern "system" fn(PUNICODE_STRING, PCWSTR);
+        let rtl_get_version: extern "system" fn(PRTL_OSVERSIONINFOW) -> NTSTATUS;
+
+        // some pointer unsafe C code
+        unsafe {
+            ntdll = LoadLibraryA(str_ntdll.as_ptr());
+            let nt_load_driver_ = GetProcAddress(ntdll, str_nt_load_driver.as_ptr());
+            let nt_unload_driver_ = GetProcAddress(ntdll, str_nt_unload_driver.as_ptr());
+            let rtl_init_unicode_str_ = GetProcAddress(ntdll, str_rtl_init_unicode_str.as_ptr());
+            let rtl_get_version_ = GetProcAddress(ntdll, str_rtl_get_version.as_ptr());
+
+            nt_load_driver = transmute(nt_load_driver_);
+            nt_unload_driver = transmute(nt_unload_driver_);
+            rtl_init_unicode_str = transmute(rtl_init_unicode_str_);
+            rtl_get_version = transmute(rtl_get_version_);
+
+            // setup registry
+            let mut registry_key: HKEY = null_mut();
+            RegCreateKeyExA(
+                HKEY_LOCAL_MACHINE,
+                str_registry_path.as_ptr(),
+                0,
+                null_mut(),
+                REG_OPTION_NON_VOLATILE,
+                KEY_WRITE,
+                null_mut(),
+                &mut registry_key,
+                null_mut(),
+            );
+            let type_value: [u8; 4] = 1u32.to_le_bytes();
+            let error_control_value: [u8; 4] = 1u32.to_le_bytes();
+            let start_value: [u8; 4] = 3u32.to_le_bytes();
+            let registry_values = [
+                (str_type.as_ptr(), REG_DWORD, type_value.as_ptr(), 4),
+                (
+                    str_error_control.as_ptr(),
+                    REG_DWORD,
+                    error_control_value.as_ptr(),
+                    4,
+                ),
+                (str_start.as_ptr(), REG_DWORD, start_value.as_ptr(), 4),
+                (
+                    str_image_path.as_ptr(),
+                    REG_SZ,
+                    str_driver_path.as_ptr() as *const u8,
+                    str_driver_path.to_bytes().len() + 1,
+                ),
+            ];
+            for &(key, keytype, value_ptr, size_in_bytes) in &registry_values {
+                RegSetValueExA(
+                    registry_key,
+                    key,
+                    0,
+                    keytype,
+                    value_ptr,
+                    size_in_bytes as u32,
+                );
+            }
+            RegCloseKey(registry_key);
+
+            // Setup privilege SeLoadDriverPrivilege
+            let mut token_handle: HANDLE = null_mut();
+            let mut luid = LUID::default();
+            OpenProcessToken(
+                GetCurrentProcess(),
+                TOKEN_ADJUST_PRIVILEGES,
+                &mut token_handle,
+            );
+            LookupPrivilegeValueA(null_mut(), str_se_load_driver_privilege.as_ptr(), &mut luid);
+            let mut new_token_state = TOKEN_PRIVILEGES {
+                PrivilegeCount: 1,
+                Privileges: [LUID_AND_ATTRIBUTES {
+                    Luid: luid,
+                    Attributes: SE_PRIVILEGE_ENABLED,
+                }],
+            };
+            AdjustTokenPrivileges(
+                token_handle,
+                0,
+                &mut new_token_state,
+                16,
+                null_mut(),
+                null_mut(),
+            );
+            CloseHandle(token_handle);
+        }
+
+        rtl_get_version(&mut version_info);
+
+        let short_version = match version_info.dwBuildNumber {
+            // 2600 => WindowsVersion::WindowsXP,
+            // 6000 | 6001 | 6002 => WindowsVersion::WindowsVista,
+            7600 | 7601 => WindowsVersion::Windows7,
+            9200 | 9600 => WindowsVersion::Windows8,
+            10240 => WindowsVersion::Windows10Legacy,
+            10586 => WindowsVersion::Windows10_2015,
+            14393 => WindowsVersion::Windows10_2016,
+            15063 | 16299 => WindowsVersion::Windows10_2017,
+            17134 | 17763 => WindowsVersion::Windows10_2018,
+            18363 | 18362 => WindowsVersion::Windows10_2019,
+            19041 => WindowsVersion::Windows10_2020,
+            x if x >= 19536 => WindowsVersion::WindowsFastRing,
+            _ => WindowsVersion::WindowsUnknown,
+        };
+
+        Self {
+            version_info,
+            short_version,
+            driver_handle: INVALID_HANDLE_VALUE,
+            ntdll,
+            nt_load_driver,
+            nt_unload_driver,
+            rtl_init_unicode_str,
+            rtl_get_version,
+        }
+    }
+
+    pub fn driver_loaded(&self) -> bool {
+        self.driver_handle != INVALID_HANDLE_VALUE
+    }
+
+    pub fn file_connect(&mut self) {
+        let filename = CString::new("\\\\.\\poolscanner").unwrap();
+        let driver_file_handle: HANDLE = unsafe {
+            CreateFileA(
+                filename.as_ptr(),
+                GENERIC_READ | GENERIC_WRITE,
+                0,
+                null_mut(),
+                CREATE_ALWAYS,
+                FILE_ATTRIBUTE_NORMAL,
+                null_mut(),
+            )
+        };
+
+        if driver_file_handle == INVALID_HANDLE_VALUE {
+            println!("Driver CreateFileA failed");
+        } else {
+            self.driver_handle = driver_file_handle;
+        }
+    }
+
+    pub fn load_driver(&mut self) -> NTSTATUS {
+        // TODO: Move this to new()
+        // If we move this function to new(), self.driver_handle will be init, and thus no mut here
+        let str_driver_reg = U16CString::from_str(STR_DRIVER_REGISTRY_PATH).unwrap();
+        let mut str_driver_reg_unicode = UNICODE_STRING::default();
+        (self.rtl_init_unicode_str)(
+            &mut str_driver_reg_unicode,
+            str_driver_reg.as_ptr() as *const u16,
+        );
+        let status = (self.nt_load_driver)(&mut str_driver_reg_unicode);
+
+        self.file_connect();
+        status
+    }
+
+    pub fn unload_driver(&self) -> NTSTATUS {
+        let str_driver_reg = U16CString::from_str(STR_DRIVER_REGISTRY_PATH).unwrap();
+        let mut str_driver_reg_unicode = UNICODE_STRING::default();
+        (self.rtl_init_unicode_str)(&mut str_driver_reg_unicode, str_driver_reg.as_ptr());
+        (self.nt_unload_driver)(&mut str_driver_reg_unicode)
+    }
+
+    #[allow(dead_code)]
+    pub fn get_build_number(&self) -> DWORD {
+        self.version_info.dwBuildNumber
+    }
+
+    #[allow(dead_code)]
+    pub fn print_version(&self) {
+        println!(
+            "Windows version: {}.{}.{} {:?}",
+            self.version_info.dwMajorVersion,
+            self.version_info.dwMinorVersion,
+            self.version_info.dwBuildNumber,
+            self.short_version
+        );
+    }
+
+    pub fn to_epoch(&self, filetime: u64) -> u64 {
+        let windows_epoch_diff = 11644473600000 * 10000;
+        if filetime < windows_epoch_diff {
+            return 0;
+        }
+        let process_time_epoch = (filetime - windows_epoch_diff) / 10000;
+        process_time_epoch
+    }
+
+    pub fn valid_process_time(&self, filetime: u64) -> bool {
+        // https://www.frenk.com/2009/12/convert-filetime-to-unix-timestamp/
+        let windows_epoch_diff = 11644473600000 * 10000;
+        if filetime < windows_epoch_diff {
+            return false;
+        }
+        let system_up_time_ms = unsafe { GetTickCount64() };
+        let process_time_epoch = (filetime - windows_epoch_diff) / 10000; // in milisecond
+        let now_ms = SystemTime::now()
+            .duration_since(UNIX_EPOCH)
+            .expect("Time went backwards")
+            .as_millis() as u64;
+        let system_start_up_time_ms =
+            now_ms - system_up_time_ms - (10 * 3600 * 1000/* 10 minutes penalty */);
+
+        if process_time_epoch < system_start_up_time_ms {
+            false
+        } else if process_time_epoch > now_ms {
+            false
+        } else {
+            true
+        }
+    }
+
+    pub fn device_io<T, E>(&self, code: DWORD, inbuf: &mut T, outbuf: &mut E) -> DWORD {
+        self.device_io_raw(
+            code,
+            inbuf as *mut _ as *mut c_void,
+            size_of_val(inbuf) as DWORD,
+            outbuf as *mut _ as *mut c_void,
+            size_of_val(outbuf) as DWORD,
+        )
+    }
+
+    pub fn device_io_raw(
+        &self,
+        code: DWORD,
+        input_ptr: *mut c_void,
+        input_len: DWORD,
+        output_ptr: *mut c_void,
+        output_len: DWORD,
+    ) -> DWORD {
+        // println!("driver loaded: {}; device_io_code: {}", self.driver_loaded(), code);
+        let mut bytes_returned: DWORD = 0;
+        unsafe {
+            let status = DeviceIoControl(
+                self.driver_handle,
+                code,
+                input_ptr,
+                input_len,
+                output_ptr,
+                output_len,
+                &mut bytes_returned,
+                null_mut(),
+            );
+            if status == 0 {
+                println!("device io failed: last error {}", GetLastError());
+            }
+        };
+        bytes_returned
+    }
+}
Author	SHA1	Message	Date
nganhkhoa	ae679b62be	Format code	2020-08-01 04:47:59 +07:00
nganhkhoa	e2eac767e0	One binary setup	2020-08-01 04:47:38 +07:00
nganhkhoa	967684f140	Fix SSDT entry SSDT entries can be negative, so signed int is used	2020-07-24 21:44:29 +07:00
nganhkhoa	2d7576b1e2	update	2020-07-21 17:07:52 +07:00
nganhkhoa	60513ee142	Add driver_irp and test_load	2020-07-07 23:43:29 +07:00
nganhkhoa	09114848fc	Update eprocess and ethread scan	2020-07-03 02:08:27 +07:00
nganhkhoa	a154c71f9b	Run rustfmt	2020-07-02 02:47:15 +07:00
nganhkhoa	b1c3107c74	Create object in object.rs	2020-07-02 02:44:01 +07:00
nganhkhoa	4e67e10aee	Update working status for Windows 7	2020-07-01 00:01:12 +07:00
nganhkhoa	8cb553eb11	Update base code for windows 7, 8, 8.1 Because the tag is different in lower version of Windows, need to change the tag in scan algorithm `4b29cf1986/volatility/framework/plugins/windows/poolscanner.py (L229)`	2020-06-30 04:09:13 +07:00
nganhkhoa	abb7a70b72	Update - Driver scan device tree and output more data - Print ssdt scanning base on kernel modules traversing	2020-06-23 18:27:24 +07:00
nganhkhoa	199c3ca10b	Update cargo dependencies And ready for a lisp repl	2020-06-22 22:31:55 +07:00
nganhkhoa	0350ec46d9	Scan unloaded module/driver By reversing MmLocateUnloadedDriver, we can know the algorithm to extract name/start/end of unloaded drivers	2020-06-22 22:30:35 +07:00
nganhkhoa	5619048a4a	Update lpus feature Traverse scan - PsActiveProcessHead - PsLoadedModuleList - KiProcessListHead - HandleTableList pdb_store has dt(struct) to display struct	2020-06-22 17:45:06 +07:00
nganhkhoa	8cf91aef79	Update scan for kernel modules and driver Scan kernel modules Driver scan major functions' address	2020-06-22 14:52:15 +07:00