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This commit is contained in:
vanhauser-thc 2024-07-14 10:33:12 +02:00
parent 8afb60d2f9
commit 55a2362348
22 changed files with 350 additions and 279 deletions
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43
frida_mode/addr/addr.c
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@ -6,34 +6,39 @@
#define UNUSED_PARAMETER(x) (void)(x) #define UNUSED_PARAMETER(x) (void)(x)
int phdr_callback(struct dl_phdr_info *info, size_t size, void *data) int phdr_callback(struct dl_phdr_info *info, size_t size, void *data) {
{
UNUSED_PARAMETER (size);
ElfW(Addr) * base = data; UNUSED_PARAMETER(size);
ElfW(Addr) *base = data;
if (info->dlpi_name[0] == 0) { *base = info->dlpi_addr; }
return 0;
if (info->dlpi_name[0] == 0) { *base = info->dlpi_addr; }
return 0;
} }
int main (int argc, char** argv, char** envp) { int main(int argc, char **argv, char **envp) {
UNUSED_PARAMETER (argc);
ElfW(Addr) base = 0; UNUSED_PARAMETER(argc);
int persona = personality(ADDR_NO_RANDOMIZE); ElfW(Addr) base = 0;
if (persona == -1) {
printf("Failed to set ADDR_NO_RANDOMIZE: %d", errno); int persona = personality(ADDR_NO_RANDOMIZE);
return 1; if (persona == -1) {
}
if ((persona & ADDR_NO_RANDOMIZE) == 0) { execvpe(argv[0], argv, envp); } printf("Failed to set ADDR_NO_RANDOMIZE: %d", errno);
return 1;
dl_iterate_phdr(phdr_callback, &base); }
printf("%p\n", (void *)base); if ((persona & ADDR_NO_RANDOMIZE) == 0) { execvpe(argv[0], argv, envp); }
if (base == 0) { return 1; }
dl_iterate_phdr(phdr_callback, &base);
printf("%p\n", (void *)base);
if (base == 0) { return 1; }
return 0;
return 0;
} }

11
frida_mode/hook/qemu_hook.c
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@ -36,7 +36,7 @@ struct x86_64_regs {
void afl_persistent_hook(struct x86_64_regs *regs, uint64_t guest_base, void afl_persistent_hook(struct x86_64_regs *regs, uint64_t guest_base,
uint8_t *input_buf, uint32_t input_buf_len) { uint8_t *input_buf, uint32_t input_buf_len) {
(void)guest_base; /* unused */ (void)guest_base; /* unused */
memcpy((void *)regs->rdi, input_buf, input_buf_len); memcpy((void *)regs->rdi, input_buf, input_buf_len);
regs->rsi = input_buf_len; regs->rsi = input_buf_len;
@ -76,14 +76,15 @@ struct x86_regs {
void afl_persistent_hook(struct x86_regs *regs, uint64_t guest_base, void afl_persistent_hook(struct x86_regs *regs, uint64_t guest_base,
uint8_t *input_buf, uint32_t input_buf_len) { uint8_t *input_buf, uint32_t input_buf_len) {
(void)guest_base; /* unused */ (void)guest_base; /* unused */
void **esp = (void **)regs->esp; void **esp = (void **)regs->esp;
void * arg1 = esp[1]; void *arg1 = esp[1];
void **arg2 = &esp[2]; void **arg2 = &esp[2];
memcpy(arg1, input_buf, input_buf_len); memcpy(arg1, input_buf, input_buf_len);
*arg2 = (void *)input_buf_len; *arg2 = (void *)input_buf_len;
} }
#elif defined(__aarch64__) #elif defined(__aarch64__)
struct arm64_regs { struct arm64_regs {
@ -177,9 +178,10 @@ struct arm64_regs {
void afl_persistent_hook(struct arm64_regs *regs, uint64_t guest_base, void afl_persistent_hook(struct arm64_regs *regs, uint64_t guest_base,
uint8_t *input_buf, uint32_t input_buf_len) { uint8_t *input_buf, uint32_t input_buf_len) {
(void)guest_base; /* unused */ (void)guest_base; /* unused */
memcpy((void *)regs->x0, input_buf, input_buf_len); memcpy((void *)regs->x0, input_buf, input_buf_len);
regs->x1 = input_buf_len; regs->x1 = input_buf_len;
} }
#else #else
@ -193,3 +195,4 @@ int afl_persistent_hook_init(void) {
return 1; return 1;
} }

2
frida_mode/include/instrument.h
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@ -22,7 +22,7 @@ extern guint64 instrument_fixed_seed;
extern uint8_t *__afl_area_ptr; extern uint8_t *__afl_area_ptr;
extern uint32_t __afl_map_size; extern uint32_t __afl_map_size;
extern void __afl_coverage_interesting(uint8_t, uint32_t); extern void __afl_coverage_interesting(uint8_t, uint32_t);
extern __thread guint64 *instrument_previous_pc_addr; extern __thread guint64 *instrument_previous_pc_addr;

69
frida_mode/test/cache/cache.c vendored
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@ -6,46 +6,45 @@
void LLVMFuzzerTestOneInput(char *buf, int len); void LLVMFuzzerTestOneInput(char *buf, int len);
__asm__ ( __asm__(
"LLVMFuzzerTestOneInput:\n" "LLVMFuzzerTestOneInput:\n"
".func LLVMFuzzerTestOneInput\n" ".func LLVMFuzzerTestOneInput\n"
".global LLVMFuzzerTestOneInput\n" ".global LLVMFuzzerTestOneInput\n"
" jmpq *jmp_offset(%rip)\n" " jmpq *jmp_offset(%rip)\n"
" nop\n" " nop\n"
" nop\n" " nop\n"
"call_target:\n" "call_target:\n"
" ret\n" " ret\n"
" nop\n" " nop\n"
" nop\n" " nop\n"
"jmp_target:\n" "jmp_target:\n"
" callq *call_offset(%rip)\n" " callq *call_offset(%rip)\n"
" nop\n" " nop\n"
" nop\n" " nop\n"
" leaq rax_offset(%rip), %rax\n" " leaq rax_offset(%rip), %rax\n"
" jmp (%rax)\n" " jmp (%rax)\n"
" nop\n" " nop\n"
" ud2\n" " ud2\n"
" nop\n" " nop\n"
"rax_target:\n" "rax_target:\n"
" ret\n" " ret\n"
"\n" "\n"
"\n" "\n"
".global jmp_offset\n" ".global jmp_offset\n"
".p2align 3\n" ".p2align 3\n"
"jmp_offset:\n" "jmp_offset:\n"
" .quad jmp_target\n" " .quad jmp_target\n"
"call_offset:\n" "call_offset:\n"
" .quad call_target\n" " .quad call_target\n"
"rax_offset:\n" "rax_offset:\n"
" .quad rax_target\n" " .quad rax_target\n");
);
int main(int argc, char **argv) { int main(int argc, char **argv) {
char * file; char *file;
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;

8
frida_mode/test/cmov/cmov.c
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@ -6,8 +6,8 @@
static bool cmov_test(char *x, char *y, size_t len) { static bool cmov_test(char *x, char *y, size_t len) {
register char * __rdi __asm__("rdi") = x; register char *__rdi __asm__("rdi") = x;
register char * __rsi __asm__("rsi") = y; register char *__rsi __asm__("rsi") = y;
register size_t __rcx __asm__("rcx") = len; register size_t __rcx __asm__("rcx") = len;
register long __rax __asm__("rax"); register long __rax __asm__("rax");
@ -49,10 +49,10 @@ void LLVMFuzzerTestOneInput(char *buf, int len) {
int main(int argc, char **argv) { int main(int argc, char **argv) {
char * file; char *file;
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;

7
frida_mode/test/deferred/testinstr.c
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@ -41,7 +41,7 @@ int run(char *file) {
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;
@ -51,6 +51,7 @@ int run(char *file) {
fd = open(file, O_RDONLY); fd = open(file, O_RDONLY);
if (fd < 0) { if (fd < 0) {
perror("open"); perror("open");
break; break;
@ -110,8 +111,10 @@ void slow() {
} }
TESTINSTR_SECTION int do_run(char * file) { TESTINSTR_SECTION int do_run(char *file) {
return run(file); return run(file);
} }
int main(int argc, char **argv) { int main(int argc, char **argv) {

24
frida_mode/test/dynamic/testinstr.c
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@ -19,32 +19,40 @@
typedef void (*fntestinstrlib)(char *buf, int len); typedef void (*fntestinstrlib)(char *buf, int len);
void testinstr(char *buf, int len) { void testinstr(char *buf, int len) {
void *lib = dlopen("testinstrlib.so", RTLD_NOW); void *lib = dlopen("testinstrlib.so", RTLD_NOW);
if (lib == NULL) { if (lib == NULL) {
puts("Library not found"); puts("Library not found");
abort(); abort();
} }
fntestinstrlib fn = (fntestinstrlib)(dlsym(lib, "testinstrlib")); fntestinstrlib fn = (fntestinstrlib)(dlsym(lib, "testinstrlib"));
if (fn == NULL) { if (fn == NULL) {
puts("Function not found"); puts("Function not found");
abort(); abort();
} }
fn(buf, len); fn(buf, len);
} }
int main(int argc, char **argv) { int main(int argc, char **argv) {
char * file;
char *file;
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;
if (argc != 2) { return 1; } if (argc != 2) { return 1; }
do { do {
file = argv[1]; file = argv[1];
printf("file: %s\n", file); printf("file: %s\n", file);
@ -52,33 +60,43 @@ int main(int argc, char **argv) {
fd = open(file, O_RDONLY); fd = open(file, O_RDONLY);
if (fd < 0) { if (fd < 0) {
perror("open"); perror("open");
break; break;
} }
len = lseek(fd, 0, SEEK_END); len = lseek(fd, 0, SEEK_END);
if (len < 0) { if (len < 0) {
perror("lseek (SEEK_END)"); perror("lseek (SEEK_END)");
break; break;
} }
if (lseek(fd, 0, SEEK_SET) != 0) { if (lseek(fd, 0, SEEK_SET) != 0) {
perror("lseek (SEEK_SET)"); perror("lseek (SEEK_SET)");
break; break;
} }
printf("len: %ld\n", len); printf("len: %ld\n", len);
buf = malloc(len); buf = malloc(len);
if (buf == NULL) { if (buf == NULL) {
perror("malloc"); perror("malloc");
break; break;
} }
n_read = read(fd, buf, len); n_read = read(fd, buf, len);
if (n_read != len) { if (n_read != len) {
perror("read"); perror("read");
break; break;
} }
dprintf(STDERR_FILENO, "Running: %s: (%zd bytes)\n", file, n_read); dprintf(STDERR_FILENO, "Running: %s: (%zd bytes)\n", file, n_read);
@ -95,4 +113,6 @@ int main(int argc, char **argv) {
if (fd != -1) { close(fd); } if (fd != -1) { close(fd); }
return result; return result;
} }

3
frida_mode/test/dynamic/testinstrlib.c
View File

@ -1,6 +1,7 @@
#include <stdio.h> #include <stdio.h>
void testinstrlib(char *buf, int len) { void testinstrlib(char *buf, int len) {
if (len < 1) return; if (len < 1) return;
buf[len] = 0; buf[len] = 0;
@ -11,4 +12,6 @@ void testinstrlib(char *buf, int len) {
printf("Pretty sure that is a one!\n"); printf("Pretty sure that is a one!\n");
else else
printf("Neither one or zero? How quaint!\n"); printf("Neither one or zero? How quaint!\n");
} }

2
frida_mode/test/entry_point/testinstr.c
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@ -41,7 +41,7 @@ int run(char *file) {
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;

4
frida_mode/test/exe/testinstr.c
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@ -39,10 +39,10 @@ void testinstr(char *buf, int len) {
TESTINSTR_SECTION int main(int argc, char **argv) { TESTINSTR_SECTION int main(int argc, char **argv) {
char * file; char *file;
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;

2
frida_mode/test/js/test.c
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@ -35,7 +35,7 @@ int run(char *file) {
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;

159
frida_mode/test/js/test2.c
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@ -22,60 +22,60 @@
#define IGNORED_RETURN(x) (void)!(x) #define IGNORED_RETURN(x) (void)!(x)
const uint32_t crc32_tab[] = { const uint32_t crc32_tab[] = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};
uint32_t 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
crc32(const void *buf, size_t size) 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
{ 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
const uint8_t *p = buf; 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
uint32_t crc; 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
crc = ~0U; 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
while (size--) 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8); 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
return crc ^ ~0U; 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d};
uint32_t crc32(const void *buf, size_t size) {
const uint8_t *p = buf;
uint32_t crc;
crc = ~0U;
while (size--)
crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
return crc ^ ~0U;
} }
/* /*
@ -83,11 +83,13 @@ crc32(const void *buf, size_t size)
* FRIDA to patch this function out and always return success. Otherwise, we * FRIDA to patch this function out and always return success. Otherwise, we
* could change it to actually correct the checksum. * could change it to actually correct the checksum.
*/ */
int crc32_check (char * buf, int len) { int crc32_check(char *buf, int len) {
if (len < sizeof(uint32_t)) { return 0; } if (len < sizeof(uint32_t)) { return 0; }
uint32_t expected = *(uint32_t *)&buf[len - sizeof(uint32_t)]; uint32_t expected = *(uint32_t *)&buf[len - sizeof(uint32_t)];
uint32_t calculated = crc32(buf, len - sizeof(uint32_t)); uint32_t calculated = crc32(buf, len - sizeof(uint32_t));
return expected == calculated; return expected == calculated;
} }
/* /*
@ -97,27 +99,31 @@ int crc32_check (char * buf, int len) {
* cloud your output unnecessarily. Again, we can use FRIDA to patch it out. * cloud your output unnecessarily. Again, we can use FRIDA to patch it out.
*/ */
void some_boring_bug(char c) { void some_boring_bug(char c) {
switch (c) { switch (c) {
case 'A'...'Z':
case 'a'...'z': case 'A' ... 'Z':
case 'a' ... 'z':
__builtin_trap(); __builtin_trap();
break; break;
} }
} }
extern void some_boring_bug2(char c); extern void some_boring_bug2(char c);
__asm__ ( __asm__(
".text \n" ".text \n"
"some_boring_bug2: \n" "some_boring_bug2: \n"
".global some_boring_bug2 \n" ".global some_boring_bug2 \n"
".type some_boring_bug2, @function \n" ".type some_boring_bug2, @function \n"
"mov %edi, %eax \n" "mov %edi, %eax \n"
"cmp $0xb4, %al \n" "cmp $0xb4, %al \n"
"jne ok \n" "jne ok \n"
"ud2 \n" "ud2 \n"
"ok: \n" "ok: \n"
"ret \n"); "ret \n");
void LLVMFuzzerTestOneInput(char *buf, int len) { void LLVMFuzzerTestOneInput(char *buf, int len) {
@ -127,16 +133,20 @@ void LLVMFuzzerTestOneInput(char *buf, int len) {
some_boring_bug2(buf[0]); some_boring_bug2(buf[0]);
if (buf[0] == '0') { if (buf[0] == '0') {
printf("Looks like a zero to me!\n"); printf("Looks like a zero to me!\n");
}
else if (buf[0] == '1') { } else if (buf[0] == '1') {
printf("Pretty sure that is a one!\n"); printf("Pretty sure that is a one!\n");
}
else if (buf[0] == '2') { } else if (buf[0] == '2') {
printf("Oh we, weren't expecting that!"); printf("Oh we, weren't expecting that!");
__builtin_trap(); __builtin_trap();
}
else } else
printf("Neither one or zero? How quaint!\n"); printf("Neither one or zero? How quaint!\n");
} }
@ -145,7 +155,7 @@ int main(int argc, char **argv) {
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;
@ -173,5 +183,6 @@ int main(int argc, char **argv) {
printf("Done: %s: (%zd bytes)\n", argv[1], n_read); printf("Done: %s: (%zd bytes)\n", argv[1], n_read);
return 0; return 0;
} }

88
frida_mode/test/osx-lib/harness.c
View File

@ -4,66 +4,68 @@
#include <stdlib.h> #include <stdlib.h>
#include <dlfcn.h> #include <dlfcn.h>
// typedef for our exported target function.
//typedef for our exported target function.
typedef void (*CRASHME)(const uint8_t *Data, size_t Size); typedef void (*CRASHME)(const uint8_t *Data, size_t Size);
//globals // globals
CRASHME fpn_crashme = NULL; CRASHME fpn_crashme = NULL;
int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size) {
fpn_crashme(data, size);
return 0;
int LLVMFuzzerTestOneInput(const unsigned char* data, size_t size){
fpn_crashme(data, size);
return 0;
} }
int main(int argc, const char * argv[]) int main(int argc, const char *argv[]) {
{
for (int i = 1; i < argc; i++) { for (int i = 1; i < argc; i++) {
fprintf(stderr, "Running: %s\n", argv[i]);
FILE *f = fopen(argv[i], "r"); fprintf(stderr, "Running: %s\n", argv[i]);
assert(f); FILE *f = fopen(argv[i], "r");
fseek(f, 0, SEEK_END); assert(f);
size_t len = ftell(f); fseek(f, 0, SEEK_END);
fseek(f, 0, SEEK_SET); size_t len = ftell(f);
unsigned char *buf = (unsigned char*)malloc(len); fseek(f, 0, SEEK_SET);
size_t n_read = fread(buf, 1, len, f); unsigned char *buf = (unsigned char *)malloc(len);
fclose(f); size_t n_read = fread(buf, 1, len, f);
assert(n_read == len); fclose(f);
LLVMFuzzerTestOneInput(buf, len); assert(n_read == len);
free(buf); LLVMFuzzerTestOneInput(buf, len);
fprintf(stderr, "Done: %s: (%zd bytes)\n", argv[i], n_read); free(buf);
} fprintf(stderr, "Done: %s: (%zd bytes)\n", argv[i], n_read);
}
return 0;
return 0;
} }
__attribute__((constructor())) __attribute__((constructor())) void constructor(void) {
void constructor(void) {
// handles to required libs
void *dylib = NULL;
dylib = dlopen("./libcrashme.dylib", RTLD_NOW); // handles to required libs
if (dylib == NULL) void *dylib = NULL;
{
printf("[-] Failed to load lib\n"); dylib = dlopen("./libcrashme.dylib", RTLD_NOW);
printf("[-] Dlerror: %s\n", dlerror()); if (dylib == NULL) {
exit(1);
} printf("[-] Failed to load lib\n");
printf("[-] Dlerror: %s\n", dlerror());
exit(1);
printf("[+] Resolve function\n"); }
fpn_crashme = (CRASHME)dlsym(dylib, "crashme"); printf("[+] Resolve function\n");
if (!fpn_crashme)
{
printf("[-] Failed to find function\n"); fpn_crashme = (CRASHME)dlsym(dylib, "crashme");
exit(1); if (!fpn_crashme) {
} printf("[-] Failed to find function\n");
exit(1);
}
printf("[+] Found function.\n");
printf("[+] Found function.\n");
} }

88
frida_mode/test/osx-lib/harness2.c
View File

@ -4,66 +4,68 @@
#include <stdlib.h> #include <stdlib.h>
#include <dlfcn.h> #include <dlfcn.h>
// typedef for our exported target function.
//typedef for our exported target function.
typedef void (*CRASHME)(const uint8_t *Data, size_t Size); typedef void (*CRASHME)(const uint8_t *Data, size_t Size);
//globals // globals
CRASHME fpn_crashme = NULL; CRASHME fpn_crashme = NULL;
int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size) {
fpn_crashme(data, size);
return 0;
int LLVMFuzzerTestOneInput(const unsigned char* data, size_t size){
fpn_crashme(data, size);
return 0;
} }
int main(int argc, const char * argv[]) int main(int argc, const char *argv[]) {
{
for (int i = 1; i < argc; i++) { for (int i = 1; i < argc; i++) {
fprintf(stderr, "Running: %s\n", argv[i]);
FILE *f = fopen(argv[i], "r"); fprintf(stderr, "Running: %s\n", argv[i]);
assert(f); FILE *f = fopen(argv[i], "r");
fseek(f, 0, SEEK_END); assert(f);
size_t len = ftell(f); fseek(f, 0, SEEK_END);
fseek(f, 0, SEEK_SET); size_t len = ftell(f);
unsigned char *buf = (unsigned char*)malloc(len); fseek(f, 0, SEEK_SET);
size_t n_read = fread(buf, 1, len, f); unsigned char *buf = (unsigned char *)malloc(len);
fclose(f); size_t n_read = fread(buf, 1, len, f);
assert(n_read == len); fclose(f);
LLVMFuzzerTestOneInput(buf, len); assert(n_read == len);
free(buf); LLVMFuzzerTestOneInput(buf, len);
fprintf(stderr, "Done: %s: (%zd bytes)\n", argv[i], n_read); free(buf);
} fprintf(stderr, "Done: %s: (%zd bytes)\n", argv[i], n_read);
}
return 0;
return 0;
} }
__attribute__((constructor())) __attribute__((constructor())) void constructor(void) {
void constructor(void) {
// handles to required libs
void *dylib = NULL;
dylib = dlopen("./libcrashme2.dylib", RTLD_NOW); // handles to required libs
if (dylib == NULL) void *dylib = NULL;
{
printf("[-] Failed to load lib\n"); dylib = dlopen("./libcrashme2.dylib", RTLD_NOW);
printf("[-] Dlerror: %s\n", dlerror()); if (dylib == NULL) {
exit(1);
} printf("[-] Failed to load lib\n");
printf("[-] Dlerror: %s\n", dlerror());
exit(1);
printf("[+] Resolve function\n"); }
fpn_crashme = (CRASHME)dlsym(dylib, "crashme"); printf("[+] Resolve function\n");
if (!fpn_crashme)
{
printf("[-] Failed to find function\n"); fpn_crashme = (CRASHME)dlsym(dylib, "crashme");
exit(1); if (!fpn_crashme) {
} printf("[-] Failed to find function\n");
exit(1);
}
printf("[+] Found function.\n");
printf("[+] Found function.\n");
} }

55
frida_mode/test/osx-lib/harness3.c
View File

@ -4,37 +4,42 @@
#include <stdlib.h> #include <stdlib.h>
#include <dlfcn.h> #include <dlfcn.h>
extern void crashme(const uint8_t *Data, size_t Size); extern void crashme(const uint8_t *Data, size_t Size);
int LLVMFuzzerTestOneInput(const unsigned char* data, size_t size){ int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size) {
crashme(data, size);
return 0; crashme(data, size);
return 0;
} }
void run (int argc, const char * argv[]) void run(int argc, const char *argv[]) {
{
for (int i = 1; i < argc; i++) { for (int i = 1; i < argc; i++) {
fprintf(stderr, "Running: %s\n", argv[i]);
FILE *f = fopen(argv[i], "r"); fprintf(stderr, "Running: %s\n", argv[i]);
assert(f); FILE *f = fopen(argv[i], "r");
fseek(f, 0, SEEK_END); assert(f);
size_t len = ftell(f); fseek(f, 0, SEEK_END);
fseek(f, 0, SEEK_SET); size_t len = ftell(f);
unsigned char *buf = (unsigned char*)malloc(len); fseek(f, 0, SEEK_SET);
size_t n_read = fread(buf, 1, len, f); unsigned char *buf = (unsigned char *)malloc(len);
fclose(f); size_t n_read = fread(buf, 1, len, f);
assert(n_read == len); fclose(f);
LLVMFuzzerTestOneInput(buf, len); assert(n_read == len);
free(buf); LLVMFuzzerTestOneInput(buf, len);
fprintf(stderr, "Done: %s: (%zd bytes)\n", argv[i], n_read); free(buf);
} fprintf(stderr, "Done: %s: (%zd bytes)\n", argv[i], n_read);
}
} }
int main(int argc, const char * argv[]) int main(int argc, const char *argv[]) {
{
run(argc, argv); run(argc, argv);
return 0;
return 0;
} }

3
frida_mode/test/osx-lib/lib.c
View File

@ -2,7 +2,6 @@
#include <stdlib.h> #include <stdlib.h>
#include <stdint.h> #include <stdint.h>
void __attribute__((noinline)) crashme(const uint8_t *Data, size_t Size) { void __attribute__((noinline)) crashme(const uint8_t *Data, size_t Size) {
if (Size < 5) return; if (Size < 5) return;
@ -13,5 +12,5 @@ void __attribute__((noinline)) crashme(const uint8_t *Data, size_t Size) {
if (Data[3] == '$') if (Data[3] == '$')
if (Data[4] == '$') abort(); if (Data[4] == '$') abort();
} }

2
frida_mode/test/osx-lib/lib2.c
View File

@ -3,7 +3,6 @@
#include <stdint.h> #include <stdint.h>
#include <string.h> #include <string.h>
void __attribute__((noinline)) crashme(const uint8_t *Data, size_t Size) { void __attribute__((noinline)) crashme(const uint8_t *Data, size_t Size) {
if (Size < 1) return; if (Size < 1) return;
@ -56,6 +55,5 @@ void __attribute__((noinline)) crashme(const uint8_t *Data, size_t Size) {
} }
} }

4
frida_mode/test/output/testinstr.c
View File

@ -39,10 +39,10 @@ void testinstr(char *buf, int len) {
TESTINSTR_SECTION int main(int argc, char **argv) { TESTINSTR_SECTION int main(int argc, char **argv) {
char * file; char *file;
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;

22
frida_mode/test/perf/perf.c
View File

@ -20,22 +20,32 @@ void LLVMFuzzerTestOneInput(char *buf, int len) {
int ret = 0; int ret = 0;
for (int i = 0; i < 1000; i++) { for (int i = 0; i < 1000; i++) {
switch(buf[i]) {
case 'A': ret += 2; break; switch (buf[i]) {
case '1': ret += 3; break;
default: ret++; case 'A':
ret += 2;
break;
case '1':
ret += 3;
break;
default:
ret++;
} }
} }
printf("ret: %d\n", ret); printf("ret: %d\n", ret);
} }
int main(int argc, char **argv) { int main(int argc, char **argv) {
char * file; char *file;
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;

6
frida_mode/test/persistent_ret/testinstr.c
View File

@ -18,7 +18,7 @@
void LLVMFuzzerTestOneInput(char *buf, int len) { void LLVMFuzzerTestOneInput(char *buf, int len) {
printf (">>> LLVMFuzzerTestOneInput >>>\n"); printf(">>> LLVMFuzzerTestOneInput >>>\n");
if (len < 1) return; if (len < 1) return;
buf[len] = 0; buf[len] = 0;
@ -40,10 +40,10 @@ void slow() {
int main(int argc, char **argv) { int main(int argc, char **argv) {
char * file; char *file;
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;

4
frida_mode/test/testinstr/testinstr.c
View File

@ -39,10 +39,10 @@ void testinstr(char *buf, int len) {
TESTINSTR_SECTION int main(int argc, char **argv) { TESTINSTR_SECTION int main(int argc, char **argv) {
char * file; char *file;
int fd = -1; int fd = -1;
off_t len; off_t len;
char * buf = NULL; char *buf = NULL;
size_t n_read; size_t n_read;
int result = -1; int result = -1;

23
frida_mode/test/unstable/unstable.c
View File

@ -22,7 +22,7 @@
#define TESTINSTR_SECTION __attribute__((section(".testinstr"))) #define TESTINSTR_SECTION __attribute__((section(".testinstr")))
#endif #endif
void LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { void LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
if (size < 1) return; if (size < 1) return;
@ -30,9 +30,13 @@ void LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
if (gettimeofday(&tv, NULL) < 0) return; if (gettimeofday(&tv, NULL) < 0) return;
if ((tv.tv_usec % 2) == 0) { if ((tv.tv_usec % 2) == 0) {
printf ("Hooray all even\n");
printf("Hooray all even\n");
} else { } else {
printf ("Hmm that's odd\n");
printf("Hmm that's odd\n");
} }
// we support three input cases // we support three input cases
@ -45,26 +49,33 @@ void LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
} }
void run_test(char * file) { void run_test(char *file) {
fprintf(stderr, "Running: %s\n", file); fprintf(stderr, "Running: %s\n", file);
FILE *f = fopen(file, "r"); FILE *f = fopen(file, "r");
assert(f); assert(f);
fseek(f, 0, SEEK_END); fseek(f, 0, SEEK_END);
size_t len = ftell(f); size_t len = ftell(f);
fseek(f, 0, SEEK_SET); fseek(f, 0, SEEK_SET);
unsigned char *buf = (unsigned char*)malloc(len); unsigned char *buf = (unsigned char *)malloc(len);
size_t n_read = fread(buf, 1, len, f); size_t n_read = fread(buf, 1, len, f);
fclose(f); fclose(f);
assert(n_read == len); assert(n_read == len);
LLVMFuzzerTestOneInput(buf, len); LLVMFuzzerTestOneInput(buf, len);
free(buf); free(buf);
fprintf(stderr, "Done: %s: (%zd bytes)\n", file, n_read); fprintf(stderr, "Done: %s: (%zd bytes)\n", file, n_read);
} }
int main(int argc, char **argv) { int main(int argc, char **argv) {
srand(1); srand(1);
fprintf(stderr, "StandaloneFuzzTargetMain: running %d inputs\n", argc - 1); fprintf(stderr, "StandaloneFuzzTargetMain: running %d inputs\n", argc - 1);
for (int i = 1; i < argc; i++) { for (int i = 1; i < argc; i++) {
run_test(argv[i]); run_test(argv[i]);
} }
} }