nganhkhoa/ios-kernel-patch
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stuff

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This commit is contained in:
comex 2012-02-18 13:26:06 -05:00
parent ed360a9a0d
commit 39158cce51
4 changed files with 40 additions and 24 deletions
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9
Makefile
View File

@ -1,11 +1,12 @@
DATA = $(word 1,$(wildcard ./data ../data)) DATA := $(word 1,$(wildcard ./data ../data))
EXTRA_DEPS := $(wildcard $(DATA)/*.h $(DATA)/*/*.h)
override CFLAGS += -I$(DATA) override CFLAGS += -I$(DATA)
include $(DATA)/Makefile.common include $(DATA)/Makefile.common
BINS := $(OUTDIR)/check_sanity $(OUTDIR)/make_kernel_patchfile $(OUTDIR)/apply_patchfile $(OUTDIR)/dump $(OUTDIR)/nm $(OUTDIR)/extract_syms $(OUTDIR)/unpack sandboxc-armv6.c sandboxc-armv7.c BINS := $(OUTDIR)/check_sanity $(OUTDIR)/make_kernel_patchfile $(OUTDIR)/apply_patchfile $(OUTDIR)/dump $(OUTDIR)/nm $(OUTDIR)/extract_syms $(OUTDIR)/unpack sandboxc-armv6.c sandboxc-armv7.c
ifneq "$(GXX)" "" #ifneq "$(GXX)" ""
BINS += $(OUTDIR)/grapher #BINS += $(OUTDIR)/grapher
endif #endif
all: .data $(OUTDIR) $(BINS) all: .data $(OUTDIR) $(BINS)

2
apply_patchfile.c
View File

@ -51,7 +51,7 @@ int main(int argc, char **argv) {
goto retry; goto retry;
} }
} else { } else {
printf("%s (0x%x)\n", name, addr); printf("%s (0x%llx)\n", name, (long long) addr);
} }
memcpy((char *) kernel.start + range_to_off_range((range_t) {&binary, addr, size}, MUST_FIND).start, stuff, size); memcpy((char *) kernel.start + range_to_off_range((range_t) {&binary, addr, size}, MUST_FIND).start, stuff, size);

49
dump.c
View File

@ -9,28 +9,43 @@ int main(int argc, char **argv) {
if(argc < 2) goto usage; if(argc < 2) goto usage;
struct binary binary; struct binary binary;
b_init(&binary); b_init(&binary);
b_load_macho(&binary, argv[1]); for(int pass = 1; pass <= 2; pass++) {
char **arg = &argv[2]; for(char **arg = &argv[1]; *arg;) {
while(*arg) { if(!strcmp(*arg, "-a")) {
if(!strcmp(*arg, "-a")) { if(!arg[1] || !arg[2]) goto usage;
if(!arg[1] || !arg[2]) goto usage; if(pass == 2) {
dump((range_t) {&binary, parse_hex_uint32(arg[1]), parse_hex_uint32(arg[2])}); dump((range_t) {&binary, parse_hex_uint32(arg[1]), parse_hex_uint32(arg[2])});
arg += 3; }
} else if(!strcmp(*arg, "-A")) { arg += 3;
if(!arg[1] || !arg[2]) goto usage; } else if(!strcmp(*arg, "-A")) {
uint32_t start = parse_hex_uint32(arg[1]); if(!arg[1] || !arg[2]) goto usage;
dump((range_t) {&binary, start, parse_hex_uint32(arg[2]) - start}); if(pass == 2) {
arg += 3; uint32_t start = parse_hex_uint32(arg[1]);
} else if(!strcmp(*arg, "-s")) { dump((range_t) {&binary, start, parse_hex_uint32(arg[2]) - start});
if(!arg[1]) goto usage; }
dump(b_macho_segrange(&binary, arg[1])); arg += 3;
arg += 2; } else if(!strcmp(*arg, "-s")) {
if(!arg[1]) goto usage;
if(pass == 2) {
dump(b_macho_segrange(&binary, arg[1]));
}
arg += 2;
} else if((*arg)[0] == '-') {
goto usage;
} else {
if(pass == 1) {
if(binary.valid) goto usage;
b_load_macho(&binary, *arg);
}
arg++;
}
} }
if(!binary.valid) goto usage;
} }
return 0; return 0;
usage: usage:
fprintf(stderr, "Usage: dump_range binary [-a start len] [-A start end] [-s segname]\n"); fprintf(stderr, "Usage: dump binary [-a start len] [-A start end] [-s segname]\n");
return 1; return 1;
} }

4
nm.c
View File

@ -37,13 +37,13 @@ int main(int argc, char **argv) {
if(argv[optind + 1]) { if(argv[optind + 1]) {
printf("%8x\n", b_sym(&binary, argv[optind + 1], flags)); printf("%8llx\n", (long long) b_sym(&binary, argv[optind + 1], flags));
} else { } else {
struct data_sym *syms; struct data_sym *syms;
uint32_t nsyms; uint32_t nsyms;
b_copy_syms(&binary, &syms, &nsyms, flags); b_copy_syms(&binary, &syms, &nsyms, flags);
while(nsyms--) { while(nsyms--) {
printf("%8x %s\n", syms->address, syms->name); printf("%8llx %s\n", (long long) syms->address, syms->name);
syms++; syms++;
} }
} }