add README and missing file

This commit is contained in:
comex 2011-03-28 23:25:27 -04:00
parent 0a6f2b0a03
commit 6bd033c15f
2 changed files with 99 additions and 0 deletions

6
README Normal file
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git clone git@github.com:comex/datautils0.git
cd datautils0
git clone git@github.com:comex/data.git
make NATIVE=1
./make_kernel_patchfile /path/to/kernelcache /tmp/patchfile
./apply_patchfile /path/to/kernelcache /tmp/patchfile /output/patched/kernelcache

93
sandbox.S Normal file
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.thumb
.syntax unified
start:
// <-
push {r0-r4, lr}
sub sp, #0x44
ldr r2, dvp_struct_offset
ldr r4, [r3, r2]
cmp r4, #0
beq actually_eval
ldr r3, vn_getpath
mov r1, sp
movs r0, #0x40
add r2, sp, #0x40
str r0, [r2]
mov r0, r4
blx r3
cmp r0, #28
beq enospc
cmp r0, #0
bne actually_eval
enospc:
# that error's okay...
mov r0, sp
adr r1, var_mobile
movs r2, #19 ;# len(var_mobile)
ldr r3, memcmp
blx r3
cmp r0, #0
bne allow
mov r0, sp
adr r1, preferences_com_apple
movs r2, #49 ;# len(preferences_com_apple)
ldr r3, memcmp
blx r3
cmp r0, #0
beq actually_eval
mov r0, sp
adr r1, preferences
movs r2, #39 ;# len(preferences)
ldr r3, memcmp
blx r3
cmp r0, #0
bne actually_eval
allow:
# it's not in /var/mobile but we have a path, let it through
add sp, #0x44
pop {r0}
movs r1, #0
str r1, [r0]
movs r1, #0x18
strb r1, [r0, #4]
pop {r1-r4, pc}
actually_eval:
add sp, #0x44
ldr r0, [sp, #5*4]
mov lr, r0
ldr r1, orig_addr
mov r9, r1
ldr r0, is_armv7
cmp r0, #0
pop {r0-r4}
add sp, #4
beq armlol
.long c_sb_evaluate_orig1
.long c_sb_evaluate_orig2
bx r9
armlol:
bx pc
.arm
.align 2
.long c_sb_evaluate_orig1
.long c_sb_evaluate_orig2
bx r9
.align 2
var_mobile: .ascii "/private/var/mobile"
.align 2
preferences_com_apple: .ascii "/private/var/mobile/Library/Preferences/com.apple"
.align 2
preferences: .ascii "/private/var/mobile/Library/Preferences"
.align 2
orig_addr: .long c_sb_evaluate_jumpto
memcmp: .long c_memcmp
vn_getpath: .long c_vn_getpath
dvp_struct_offset: .long c_dvp_struct_offset
is_armv7: .long c_is_armv7