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#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/mman.h>
#include "frida-gumjs.h"
#include "config.h"
#include "entry.h"
#include "shm.h"
#include "stalker.h"
#include "stats.h"
#include "util.h"
#define MICRO_TO_SEC 1000000
char *stats_filename = NULL;
guint64 stats_interval = 0;
static guint64 stats_interval_us = 0;
static int stats_fd = -1;
static stats_data_t *stats_data = MAP_FAILED;
void stats_write(void) {
if (stats_filename == NULL) { return; }
if (stats_interval == 0) { return; }
guint64 current_time = g_get_monotonic_time();
if ((current_time - stats_data->prev.stats_time) < stats_interval_us) {
return;
}
IGNORED_RETURN(ftruncate(stats_fd, 0));
IGNORED_RETURN(lseek(stats_fd, 0, SEEK_SET));
stats_data->curr.stats_time = current_time;
GDateTime *date_time = g_date_time_new_now_local();
char *date_string = g_date_time_format(date_time, "%Y-%m-%d");
char *time_string = g_date_time_format(date_time, "%H:%M:%S");
guint elapsed = (stats_data->curr.stats_time - stats_data->prev.stats_time) /
MICRO_TO_SEC;
stats_print("stats\n");
stats_print("-----\n");
stats_print("%-21s %s %s\n", "Time", date_string, time_string);
stats_print("%-30s %10u seconds \n", "Elapsed", elapsed);
stats_print("\n");
stats_print("\n");
g_free(time_string);
g_free(date_string);
g_date_time_unref(date_time);
stats_write_arch(stats_data);
memcpy(&stats_data->prev, &stats_data->curr, sizeof(stats_t));
}
static void gum_afl_stalker_stats_increment_total(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.total++;
}
static void gum_afl_stalker_stats_increment_call_imm(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.call_imm++;
}
static void gum_afl_stalker_stats_increment_call_reg(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.call_reg++;
}
static void gum_afl_stalker_stats_increment_call_mem(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.call_mem++;
}
static void gum_afl_stalker_stats_increment_excluded_call_reg(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.excluded_call_reg++;
}
static void gum_afl_stalker_stats_increment_ret_slow_path(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.ret_slow_path++;
}
static void gum_afl_stalker_stats_increment_ret(GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.ret++;
}
static void gum_afl_stalker_stats_increment_post_call_invoke(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.post_call_invoke++;
}
static void gum_afl_stalker_stats_increment_excluded_call_imm(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.excluded_call_imm++;
}
static void gum_afl_stalker_stats_increment_jmp_imm(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_imm++;
}
static void gum_afl_stalker_stats_increment_jmp_reg(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_reg++;
}
static void gum_afl_stalker_stats_increment_jmp_mem(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_mem++;
}
static void gum_afl_stalker_stats_increment_jmp_cond_imm(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_cond_imm++;
}
static void gum_afl_stalker_stats_increment_jmp_cond_mem(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_cond_mem++;
}
static void gum_afl_stalker_stats_increment_jmp_cond_reg(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_cond_reg++;
}
static void gum_afl_stalker_stats_increment_jmp_cond_jcxz(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_cond_jcxz++;
}
static void gum_afl_stalker_stats_increment_jmp_cond_cc(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_cond_cc++;
}
static void gum_afl_stalker_stats_increment_jmp_cond_cbz(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_cond_cbz++;
}
static void gum_afl_stalker_stats_increment_jmp_cond_cbnz(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_cond_cbnz++;
}
static void gum_afl_stalker_stats_increment_jmp_cond_tbz(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_cond_tbz++;
}
static void gum_afl_stalker_stats_increment_jmp_cond_tbnz(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_cond_tbnz++;
}
static void gum_afl_stalker_stats_increment_jmp_continuation(
GumStalkerObserver *observer) {
UNUSED_PARAMETER(observer);
if (!entry_compiled) { return; }
stats_data->curr.jmp_continuation++;
}
static void stats_observer_init(GumStalkerObserver *observer) {
GumStalkerObserverInterface *iface = GUM_STALKER_OBSERVER_GET_IFACE(observer);
iface->increment_total = gum_afl_stalker_stats_increment_total;
iface->increment_call_imm = gum_afl_stalker_stats_increment_call_imm;
iface->increment_call_reg = gum_afl_stalker_stats_increment_call_reg;
iface->increment_call_mem = gum_afl_stalker_stats_increment_call_mem;
iface->increment_excluded_call_reg =
gum_afl_stalker_stats_increment_excluded_call_reg;
iface->increment_ret_slow_path =
gum_afl_stalker_stats_increment_ret_slow_path;
iface->increment_ret = gum_afl_stalker_stats_increment_ret;
iface->increment_post_call_invoke =
gum_afl_stalker_stats_increment_post_call_invoke;
iface->increment_excluded_call_imm =
gum_afl_stalker_stats_increment_excluded_call_imm;
iface->increment_jmp_imm = gum_afl_stalker_stats_increment_jmp_imm;
iface->increment_jmp_reg = gum_afl_stalker_stats_increment_jmp_reg;
iface->increment_jmp_mem = gum_afl_stalker_stats_increment_jmp_mem;
iface->increment_jmp_cond_imm = gum_afl_stalker_stats_increment_jmp_cond_imm;
iface->increment_jmp_cond_mem = gum_afl_stalker_stats_increment_jmp_cond_mem;
iface->increment_jmp_cond_reg = gum_afl_stalker_stats_increment_jmp_cond_reg;
iface->increment_jmp_cond_jcxz =
gum_afl_stalker_stats_increment_jmp_cond_jcxz;
iface->increment_jmp_cond_cc = gum_afl_stalker_stats_increment_jmp_cond_cc;
iface->increment_jmp_cond_cbz = gum_afl_stalker_stats_increment_jmp_cond_cbz;
iface->increment_jmp_cond_cbnz =
gum_afl_stalker_stats_increment_jmp_cond_cbnz;
iface->increment_jmp_cond_tbz = gum_afl_stalker_stats_increment_jmp_cond_tbz;
iface->increment_jmp_cond_tbnz =
gum_afl_stalker_stats_increment_jmp_cond_tbnz;
iface->increment_jmp_continuation =
gum_afl_stalker_stats_increment_jmp_continuation;
}
void stats_config(void) {
stats_filename = getenv("AFL_FRIDA_STATS_FILE");
stats_interval = util_read_num("AFL_FRIDA_STATS_INTERVAL", 10);
}
void stats_init(void) {
FOKF(cBLU "Stats" cRST " - " cGRN "file:" cYEL " [%s]",
stats_filename == NULL ? " " : stats_filename);
FOKF(cBLU "Stats" cRST " - " cGRN "interval:" cYEL " [%" G_GINT64_MODIFIER
"u]",
stats_interval);
if (getenv("AFL_FRIDA_STATS_INTERVAL") != NULL &&
getenv("AFL_FRIDA_STATS_FILE") == NULL) {
FFATAL(
"AFL_FRIDA_STATS_FILE must be specified if "
"AFL_FRIDA_STATS_INTERVAL is");
}
stats_interval_us = stats_interval * MICRO_TO_SEC;
if (stats_filename == NULL) { return; }
char *path = g_canonicalize_filename(stats_filename, g_get_current_dir());
FOKF(cBLU "Stats" cRST " - " cGRN "path:" cYEL " [%s]",
path == NULL ? " " : path);
stats_fd = open(path, O_RDWR | O_CREAT | O_TRUNC,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
if (stats_fd < 0) { FFATAL("Failed to open stats file '%s'", path); }
g_free(path);
GumStalkerObserver *observer = stalker_get_observer();
stats_observer_init(observer);
stats_data = shm_create(sizeof(stats_data_t));
starts_arch_init();
}
void stats_print(char *format, ...) {
char buffer[4096] = {0};
int len;
va_list ap;
va_start(ap, format);
if (vsnprintf(buffer, sizeof(buffer) - 1, format, ap) < 0) { return; }
len = strnlen(buffer, sizeof(buffer));
IGNORED_RETURN(write(stats_fd, buffer, len));
va_end(ap);
}
void stats_on_fork(void) {
stats_write();
}
void stats_collect(const cs_insn *instr, gboolean begin) {
if (!entry_compiled) { return; }
if (stats_filename == NULL) { return; }
stats_collect_arch(instr, begin);
}
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