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Merge pull request #1157 from WorksButNotTested/frida

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Frida
This commit is contained in:
van Hauser
2021-11-11 20:09:02 +01:00
committed by GitHub
parent 2623851680 b033a2d98b
commit 96430fc9e0
5 changed files with 52 additions and 29 deletions
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2
frida_mode/src/entry.c
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@ -36,7 +36,7 @@ static void entry_launch(void) {
}
#if defined(__linux__) && !defined(__ANDROID__)
#if defined(__linux__) && defined(PR_SET_PTRACER) && !defined(__ANDROID__)
void entry_on_fork(void) {
if (traceable) {

56
frida_mode/src/instrument/instrument_coverage.c
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@ -237,7 +237,7 @@ static void instrument_coverage_mark(void *key, void *value, void *user_data) {
}
static void coverage_write(void *data, size_t size) {
static void coverage_write(int fd, void *data, size_t size) {
ssize_t written;
size_t remain = size;
@ -245,7 +245,7 @@ static void coverage_write(void *data, size_t size) {
for (char *cursor = (char *)data; remain > 0;
remain -= written, cursor += written) {
written = write(normal_coverage_fd, cursor, remain);
written = write(fd, cursor, remain);
if (written < 0) {
@ -257,7 +257,7 @@ static void coverage_write(void *data, size_t size) {
}
static void coverage_format(char *format, ...) {
static void coverage_format(int fd, char *format, ...) {
va_list ap;
char buffer[4096] = {0};
@ -272,11 +272,11 @@ static void coverage_format(char *format, ...) {
len = strnlen(buffer, sizeof(buffer));
coverage_write(buffer, len);
coverage_write(fd, buffer, len);
}
static void coverage_write_modules(GArray *coverage_modules) {
static void coverage_write_modules(int fd, GArray *coverage_modules) {
guint emitted = 0;
for (guint i = 0; i < coverage_modules->len; i++) {
@ -285,16 +285,16 @@ static void coverage_write_modules(GArray *coverage_modules) {
&g_array_index(coverage_modules, coverage_range_t, i);
if (module->count == 0) continue;
coverage_format("%3u, ", emitted);
coverage_format("%016" G_GINT64_MODIFIER "X, ", module->base_address);
coverage_format("%016" G_GINT64_MODIFIER "X, ", module->limit);
coverage_format(fd, "%3u, ", emitted);
coverage_format(fd, "%016" G_GINT64_MODIFIER "X, ", module->base_address);
coverage_format(fd, "%016" G_GINT64_MODIFIER "X, ", module->limit);
/* entry */
coverage_format("%016" G_GINT64_MODIFIER "X, ", 0);
coverage_format(fd, "%016" G_GINT64_MODIFIER "X, ", 0);
/* checksum */
coverage_format("%016" G_GINT64_MODIFIER "X, ", 0);
coverage_format(fd, "%016" G_GINT64_MODIFIER "X, ", 0);
/* timestamp */
coverage_format("%08" G_GINT32_MODIFIER "X, ", 0);
coverage_format("%s\n", module->path);
coverage_format(fd, "%08" G_GINT32_MODIFIER "X, ", 0);
coverage_format(fd, "%s\n", module->path);
emitted++;
}
@ -304,7 +304,7 @@ static void coverage_write_modules(GArray *coverage_modules) {
static void coverage_write_events(void *key, void *value, void *user_data) {
UNUSED_PARAMETER(key);
UNUSED_PARAMETER(user_data);
int fd = *((int *)user_data);
normal_coverage_data_t *val = (normal_coverage_data_t *)value;
if (val->module == NULL) { return; }
@ -317,20 +317,20 @@ static void coverage_write_events(void *key, void *value, void *user_data) {
};
coverage_write(&evt, sizeof(coverage_event_t));
coverage_write(fd, &evt, sizeof(coverage_event_t));
}
static void coverage_write_header(guint coverage_marked_modules) {
static void coverage_write_header(int fd, guint coverage_marked_modules) {
char version[] = "DRCOV VERSION: 2\n";
char flavour[] = "DRCOV FLAVOR: frida\n";
char columns[] = "Columns: id, base, end, entry, checksum, timestamp, path\n";
coverage_write(version, sizeof(version) - 1);
coverage_write(flavour, sizeof(flavour) - 1);
coverage_format("Module Table: version 2, count %u\n",
coverage_write(fd, version, sizeof(version) - 1);
coverage_write(fd, flavour, sizeof(flavour) - 1);
coverage_format(fd, "Module Table: version 2, count %u\n",
coverage_marked_modules);
coverage_write(columns, sizeof(columns) - 1);
coverage_write(fd, columns, sizeof(columns) - 1);
}
@ -412,10 +412,11 @@ static void instrument_coverage_normal_run() {
instrument_coverage_print("Coverage - Marked Modules: %u\n",
coverage_marked_modules);
coverage_write_header(coverage_marked_modules);
coverage_write_modules(coverage_modules);
coverage_format("BB Table: %u bbs\n", ctx.count);
g_hash_table_foreach(coverage_hash, coverage_write_events, NULL);
coverage_write_header(normal_coverage_fd, coverage_marked_modules);
coverage_write_modules(normal_coverage_fd, coverage_modules);
coverage_format(normal_coverage_fd, "BB Table: %u bbs\n", ctx.count);
g_hash_table_foreach(coverage_hash, coverage_write_events,
&normal_coverage_fd);
g_hash_table_unref(coverage_hash);
@ -636,10 +637,11 @@ static void instrument_coverage_unstable_run(void) {
instrument_coverage_print("Coverage - Marked Modules: %u\n",
coverage_marked_modules);
coverage_write_header(coverage_marked_modules);
coverage_write_modules(coverage_modules);
coverage_format("BB Table: %u bbs\n", ctx.count);
g_hash_table_foreach(unstable_blocks, coverage_write_events, NULL);
coverage_write_header(unstable_coverage_fd, coverage_marked_modules);
coverage_write_modules(unstable_coverage_fd, coverage_modules);
coverage_format(unstable_coverage_fd, "BB Table: %u bbs\n", ctx.count);
g_hash_table_foreach(unstable_blocks, coverage_write_events,
&unstable_coverage_fd);
g_hash_table_unref(unstable_blocks);
g_array_free(unstable_edge_ids, TRUE);

8
frida_mode/src/js/js_api.c
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@ -47,6 +47,14 @@ __attribute__((visibility("default"))) void js_api_set_persistent_address(
persistent_start = GPOINTER_TO_SIZE(address);
if (getenv("__AFL_PERSISTENT") == NULL) {
FATAL(
"You must set __AFL_PERSISTENT manually if using persistent mode "
"configured using JS");
}
}
__attribute__((visibility("default"))) void js_api_set_persistent_return(

1
frida_mode/test/png/persistent/hook/GNUmakefile
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@ -144,6 +144,7 @@ frida_entry_slow: $(AFLPP_DRIVER_DUMMY_INPUT) $(AFLPP_FRIDA_DRIVER_HOOK_OBJ) | $
frida_js_load: $(AFLPP_DRIVER_DUMMY_INPUT) $(AFLPP_FRIDA_DRIVER_HOOK_OBJ) | $(BUILD_DIR)
AFL_PRELOAD=$(AFL_PRELOAD) \
__AFL_PERSISTENT=1 \
AFL_FRIDA_JS_SCRIPT=load.js \
$(ROOT)afl-fuzz \
-D \

14
frida_mode/test/unstable/GNUmakefile
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@ -86,11 +86,23 @@ frida: $(UNSTABLE_BIN) $(UNSTABLE_DATA_FILE)
$(UNSTABLE_BIN) @@
frida_coverage: $(UNSTABLE_BIN) $(UNSTABLE_DATA_FILE)
AFL_DEBUG=1 \
AFL_FRIDA_PERSISTENT_ADDR=$(AFL_FRIDA_PERSISTENT_ADDR) \
AFL_FRIDA_OUTPUT_STDOUT=/tmp/stdout.txt \
AFL_FRIDA_OUTPUT_STDERR=/tmp/stderr.txt \
AFL_FRIDA_INST_COVERAGE_FILE=/tmp/coverage.dat \
$(ROOT)afl-fuzz \
-D \
-O \
-i $(UNSTABLE_DATA_DIR) \
-o $(FRIDA_OUT) \
-- \
$(UNSTABLE_BIN) @@
frida_unstable: $(UNSTABLE_BIN) $(UNSTABLE_DATA_FILE)
AFL_DEBUG=1 \
AFL_FRIDA_PERSISTENT_ADDR=$(AFL_FRIDA_PERSISTENT_ADDR) \
AFL_FRIDA_OUTPUT_STDOUT=/tmp/stdout.txt \
AFL_FRIDA_OUTPUT_STDERR=/tmp/stderr.txt \
AFL_FRIDA_INST_UNSTABLE_COVERAGE_FILE=/tmp/unstable.dat \
$(ROOT)afl-fuzz \
-D \