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/* Copyright (c) 2017 Facebook
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*/
#include "test_progs.h"
#include "bpf_rlimit.h"
int error_cnt, pass_cnt;
bool jit_enabled;
bool verifier_stats = false;
struct ipv4_packet pkt_v4 = {
.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
.iph.ihl = 5,
.iph.protocol = IPPROTO_TCP,
.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
.tcp.urg_ptr = 123,
.tcp.doff = 5,
};
struct ipv6_packet pkt_v6 = {
.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
.iph.nexthdr = IPPROTO_TCP,
.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
.tcp.urg_ptr = 123,
.tcp.doff = 5,
};
int bpf_find_map(const char *test, struct bpf_object *obj, const char *name)
{
struct bpf_map *map;
map = bpf_object__find_map_by_name(obj, name);
if (!map) {
printf("%s:FAIL:map '%s' not found\n", test, name);
error_cnt++;
return -1;
}
return bpf_map__fd(map);
}
static bool is_jit_enabled(void)
{
const char *jit_sysctl = "/proc/sys/net/core/bpf_jit_enable";
bool enabled = false;
int sysctl_fd;
sysctl_fd = open(jit_sysctl, 0, O_RDONLY);
if (sysctl_fd != -1) {
char tmpc;
if (read(sysctl_fd, &tmpc, sizeof(tmpc)) == 1)
enabled = (tmpc != '0');
close(sysctl_fd);
}
return enabled;
}
int compare_map_keys(int map1_fd, int map2_fd)
{
__u32 key, next_key;
char val_buf[PERF_MAX_STACK_DEPTH *
sizeof(struct bpf_stack_build_id)];
int err;
err = bpf_map_get_next_key(map1_fd, NULL, &key);
if (err)
return err;
err = bpf_map_lookup_elem(map2_fd, &key, val_buf);
if (err)
return err;
while (bpf_map_get_next_key(map1_fd, &key, &next_key) == 0) {
err = bpf_map_lookup_elem(map2_fd, &next_key, val_buf);
if (err)
return err;
key = next_key;
}
if (errno != ENOENT)
return -1;
return 0;
}
int compare_stack_ips(int smap_fd, int amap_fd, int stack_trace_len)
{
__u32 key, next_key, *cur_key_p, *next_key_p;
char *val_buf1, *val_buf2;
int i, err = 0;
val_buf1 = malloc(stack_trace_len);
val_buf2 = malloc(stack_trace_len);
cur_key_p = NULL;
next_key_p = &key;
while (bpf_map_get_next_key(smap_fd, cur_key_p, next_key_p) == 0) {
err = bpf_map_lookup_elem(smap_fd, next_key_p, val_buf1);
if (err)
goto out;
err = bpf_map_lookup_elem(amap_fd, next_key_p, val_buf2);
if (err)
goto out;
for (i = 0; i < stack_trace_len; i++) {
if (val_buf1[i] != val_buf2[i]) {
err = -1;
goto out;
}
}
key = *next_key_p;
cur_key_p = &key;
next_key_p = &next_key;
}
if (errno != ENOENT)
err = -1;
out:
free(val_buf1);
free(val_buf2);
return err;
}
int extract_build_id(char *build_id, size_t size)
{
FILE *fp;
char *line = NULL;
size_t len = 0;
fp = popen("readelf -n ./urandom_read | grep 'Build ID'", "r");
if (fp == NULL)
return -1;
if (getline(&line, &len, fp) == -1)
goto err;
fclose(fp);
if (len > size)
len = size;
memcpy(build_id, line, len);
build_id[len] = '\0';
return 0;
err:
fclose(fp);
return -1;
}
void *spin_lock_thread(void *arg)
{
__u32 duration, retval;
int err, prog_fd = *(u32 *) arg;
err = bpf_prog_test_run(prog_fd, 10000, &pkt_v4, sizeof(pkt_v4),
NULL, NULL, &retval, &duration);
CHECK(err || retval, "",
"err %d errno %d retval %d duration %d\n",
err, errno, retval, duration);
pthread_exit(arg);
}
#define DECLARE
#include <prog_tests/tests.h>
#undef DECLARE
int main(int ac, char **av)
{
srand(time(NULL));
jit_enabled = is_jit_enabled();
if (ac == 2 && strcmp(av[1], "-s") == 0)
verifier_stats = true;
#define CALL
#include <prog_tests/tests.h>
#undef CALL
printf("Summary: %d PASSED, %d FAILED\n", pass_cnt, error_cnt);
return error_cnt ? EXIT_FAILURE : EXIT_SUCCESS;
}
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