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-rw-r--r--tools/testing/selftests/bpf/test_btf.c179
-rw-r--r--tools/testing/selftests/bpf/test_sockmap.c56
-rw-r--r--tools/testing/selftests/bpf/test_tcpbpf_kern.c38
-rw-r--r--tools/testing/selftests/bpf/test_tcpbpf_user.c31
4 files changed, 240 insertions, 64 deletions
diff --git a/tools/testing/selftests/bpf/test_btf.c b/tools/testing/selftests/bpf/test_btf.c
index 6b5cfeb7a9cc..f42b3396d622 100644
--- a/tools/testing/selftests/bpf/test_btf.c
+++ b/tools/testing/selftests/bpf/test_btf.c
@@ -4,6 +4,7 @@
#include <linux/bpf.h>
#include <linux/btf.h>
#include <linux/err.h>
+#include <linux/kernel.h>
#include <bpf/bpf.h>
#include <sys/resource.h>
#include <libelf.h>
@@ -45,7 +46,6 @@ static int count_result(int err)
return err;
}
-#define min(a, b) ((a) < (b) ? (a) : (b))
#define __printf(a, b) __attribute__((format(printf, a, b)))
__printf(1, 2)
@@ -130,6 +130,7 @@ struct btf_raw_test {
bool map_create_err;
bool ordered_map;
bool lossless_map;
+ bool percpu_map;
int hdr_len_delta;
int type_off_delta;
int str_off_delta;
@@ -2157,6 +2158,7 @@ static struct btf_pprint_test_meta {
const char *map_name;
bool ordered_map;
bool lossless_map;
+ bool percpu_map;
} pprint_tests_meta[] = {
{
.descr = "BTF pretty print array",
@@ -2164,6 +2166,7 @@ static struct btf_pprint_test_meta {
.map_name = "pprint_test_array",
.ordered_map = true,
.lossless_map = true,
+ .percpu_map = false,
},
{
@@ -2172,6 +2175,7 @@ static struct btf_pprint_test_meta {
.map_name = "pprint_test_hash",
.ordered_map = false,
.lossless_map = true,
+ .percpu_map = false,
},
{
@@ -2180,30 +2184,83 @@ static struct btf_pprint_test_meta {
.map_name = "pprint_test_lru_hash",
.ordered_map = false,
.lossless_map = false,
+ .percpu_map = false,
+},
+
+{
+ .descr = "BTF pretty print percpu array",
+ .map_type = BPF_MAP_TYPE_PERCPU_ARRAY,
+ .map_name = "pprint_test_percpu_array",
+ .ordered_map = true,
+ .lossless_map = true,
+ .percpu_map = true,
+},
+
+{
+ .descr = "BTF pretty print percpu hash",
+ .map_type = BPF_MAP_TYPE_PERCPU_HASH,
+ .map_name = "pprint_test_percpu_hash",
+ .ordered_map = false,
+ .lossless_map = true,
+ .percpu_map = true,
+},
+
+{
+ .descr = "BTF pretty print lru percpu hash",
+ .map_type = BPF_MAP_TYPE_LRU_PERCPU_HASH,
+ .map_name = "pprint_test_lru_percpu_hash",
+ .ordered_map = false,
+ .lossless_map = false,
+ .percpu_map = true,
},
};
-static void set_pprint_mapv(struct pprint_mapv *v, uint32_t i)
+static void set_pprint_mapv(struct pprint_mapv *v, uint32_t i,
+ int num_cpus, int rounded_value_size)
{
- v->ui32 = i;
- v->si32 = -i;
- v->unused_bits2a = 3;
- v->bits28 = i;
- v->unused_bits2b = 3;
- v->ui64 = i;
- v->aenum = i & 0x03;
+ int cpu;
+
+ for (cpu = 0; cpu < num_cpus; cpu++) {
+ v->ui32 = i + cpu;
+ v->si32 = -i;
+ v->unused_bits2a = 3;
+ v->bits28 = i;
+ v->unused_bits2b = 3;
+ v->ui64 = i;
+ v->aenum = i & 0x03;
+ v = (void *)v + rounded_value_size;
+ }
}
+static int check_line(const char *expected_line, int nexpected_line,
+ int expected_line_len, const char *line)
+{
+ if (CHECK(nexpected_line == expected_line_len,
+ "expected_line is too long"))
+ return -1;
+
+ if (strcmp(expected_line, line)) {
+ fprintf(stderr, "unexpected pprint output\n");
+ fprintf(stderr, "expected: %s", expected_line);
+ fprintf(stderr, " read: %s", line);
+ return -1;
+ }
+
+ return 0;
+}
+
+
static int do_test_pprint(void)
{
const struct btf_raw_test *test = &pprint_test_template;
struct bpf_create_map_attr create_attr = {};
+ bool ordered_map, lossless_map, percpu_map;
+ int err, ret, num_cpus, rounded_value_size;
+ struct pprint_mapv *mapv = NULL;
unsigned int key, nr_read_elems;
- bool ordered_map, lossless_map;
int map_fd = -1, btf_fd = -1;
- struct pprint_mapv mapv = {};
unsigned int raw_btf_size;
char expected_line[255];
FILE *pin_file = NULL;
@@ -2212,7 +2269,6 @@ static int do_test_pprint(void)
char *line = NULL;
uint8_t *raw_btf;
ssize_t nread;
- int err, ret;
fprintf(stderr, "%s......", test->descr);
raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types,
@@ -2261,9 +2317,18 @@ static int do_test_pprint(void)
if (CHECK(err, "bpf_obj_pin(%s): errno:%d.", pin_path, errno))
goto done;
+ percpu_map = test->percpu_map;
+ num_cpus = percpu_map ? bpf_num_possible_cpus() : 1;
+ rounded_value_size = round_up(sizeof(struct pprint_mapv), 8);
+ mapv = calloc(num_cpus, rounded_value_size);
+ if (CHECK(!mapv, "mapv allocation failure")) {
+ err = -1;
+ goto done;
+ }
+
for (key = 0; key < test->max_entries; key++) {
- set_pprint_mapv(&mapv, key);
- bpf_map_update_elem(map_fd, &key, &mapv, 0);
+ set_pprint_mapv(mapv, key, num_cpus, rounded_value_size);
+ bpf_map_update_elem(map_fd, &key, mapv, 0);
}
pin_file = fopen(pin_path, "r");
@@ -2286,33 +2351,74 @@ static int do_test_pprint(void)
ordered_map = test->ordered_map;
lossless_map = test->lossless_map;
do {
+ struct pprint_mapv *cmapv;
ssize_t nexpected_line;
unsigned int next_key;
+ int cpu;
next_key = ordered_map ? nr_read_elems : atoi(line);
- set_pprint_mapv(&mapv, next_key);
- nexpected_line = snprintf(expected_line, sizeof(expected_line),
- "%u: {%u,0,%d,0x%x,0x%x,0x%x,{%lu|[%u,%u,%u,%u,%u,%u,%u,%u]},%s}\n",
- next_key,
- mapv.ui32, mapv.si32,
- mapv.unused_bits2a, mapv.bits28, mapv.unused_bits2b,
- mapv.ui64,
- mapv.ui8a[0], mapv.ui8a[1], mapv.ui8a[2], mapv.ui8a[3],
- mapv.ui8a[4], mapv.ui8a[5], mapv.ui8a[6], mapv.ui8a[7],
- pprint_enum_str[mapv.aenum]);
-
- if (CHECK(nexpected_line == sizeof(expected_line),
- "expected_line is too long")) {
- err = -1;
- goto done;
+ set_pprint_mapv(mapv, next_key, num_cpus, rounded_value_size);
+ cmapv = mapv;
+
+ for (cpu = 0; cpu < num_cpus; cpu++) {
+ if (percpu_map) {
+ /* for percpu map, the format looks like:
+ * <key>: {
+ * cpu0: <value_on_cpu0>
+ * cpu1: <value_on_cpu1>
+ * ...
+ * cpun: <value_on_cpun>
+ * }
+ *
+ * let us verify the line containing the key here.
+ */
+ if (cpu == 0) {
+ nexpected_line = snprintf(expected_line,
+ sizeof(expected_line),
+ "%u: {\n",
+ next_key);
+
+ err = check_line(expected_line, nexpected_line,
+ sizeof(expected_line), line);
+ if (err == -1)
+ goto done;
+ }
+
+ /* read value@cpu */
+ nread = getline(&line, &line_len, pin_file);
+ if (nread < 0)
+ break;
+ }
+
+ nexpected_line = snprintf(expected_line, sizeof(expected_line),
+ "%s%u: {%u,0,%d,0x%x,0x%x,0x%x,"
+ "{%lu|[%u,%u,%u,%u,%u,%u,%u,%u]},%s}\n",
+ percpu_map ? "\tcpu" : "",
+ percpu_map ? cpu : next_key,
+ cmapv->ui32, cmapv->si32,
+ cmapv->unused_bits2a,
+ cmapv->bits28,
+ cmapv->unused_bits2b,
+ cmapv->ui64,
+ cmapv->ui8a[0], cmapv->ui8a[1],
+ cmapv->ui8a[2], cmapv->ui8a[3],
+ cmapv->ui8a[4], cmapv->ui8a[5],
+ cmapv->ui8a[6], cmapv->ui8a[7],
+ pprint_enum_str[cmapv->aenum]);
+
+ err = check_line(expected_line, nexpected_line,
+ sizeof(expected_line), line);
+ if (err == -1)
+ goto done;
+
+ cmapv = (void *)cmapv + rounded_value_size;
}
- if (strcmp(expected_line, line)) {
- err = -1;
- fprintf(stderr, "unexpected pprint output\n");
- fprintf(stderr, "expected: %s", expected_line);
- fprintf(stderr, " read: %s", line);
- goto done;
+ if (percpu_map) {
+ /* skip the last bracket for the percpu map */
+ nread = getline(&line, &line_len, pin_file);
+ if (nread < 0)
+ break;
}
nread = getline(&line, &line_len, pin_file);
@@ -2334,6 +2440,8 @@ static int do_test_pprint(void)
err = 0;
done:
+ if (mapv)
+ free(mapv);
if (!err)
fprintf(stderr, "OK");
if (*btf_log_buf && (err || args.always_log))
@@ -2361,6 +2469,7 @@ static int test_pprint(void)
pprint_test_template.map_name = pprint_tests_meta[i].map_name;
pprint_test_template.ordered_map = pprint_tests_meta[i].ordered_map;
pprint_test_template.lossless_map = pprint_tests_meta[i].lossless_map;
+ pprint_test_template.percpu_map = pprint_tests_meta[i].percpu_map;
err |= count_result(do_test_pprint());
}
diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c
index 0c7d9e556b47..ac7de38e5c63 100644
--- a/tools/testing/selftests/bpf/test_sockmap.c
+++ b/tools/testing/selftests/bpf/test_sockmap.c
@@ -469,8 +469,6 @@ static int sendmsg_test(struct sockmap_options *opt)
fprintf(stderr,
"msg_loop_rx: iov_count %i iov_buf %i cnt %i err %i\n",
iov_count, iov_buf, cnt, err);
- shutdown(p2, SHUT_RDWR);
- shutdown(p1, SHUT_RDWR);
if (s.end.tv_sec - s.start.tv_sec) {
sent_Bps = sentBps(s);
recvd_Bps = recvdBps(s);
@@ -500,7 +498,6 @@ static int sendmsg_test(struct sockmap_options *opt)
fprintf(stderr,
"msg_loop_tx: iov_count %i iov_buf %i cnt %i err %i\n",
iov_count, iov_buf, cnt, err);
- shutdown(c1, SHUT_RDWR);
if (s.end.tv_sec - s.start.tv_sec) {
sent_Bps = sentBps(s);
recvd_Bps = recvdBps(s);
@@ -1348,9 +1345,9 @@ static int populate_progs(char *bpf_file)
return 0;
}
-static int __test_suite(char *bpf_file)
+static int __test_suite(int cg_fd, char *bpf_file)
{
- int cg_fd, err;
+ int err, cleanup = cg_fd;
err = populate_progs(bpf_file);
if (err < 0) {
@@ -1358,22 +1355,24 @@ static int __test_suite(char *bpf_file)
return err;
}
- if (setup_cgroup_environment()) {
- fprintf(stderr, "ERROR: cgroup env failed\n");
- return -EINVAL;
- }
-
- cg_fd = create_and_get_cgroup(CG_PATH);
if (cg_fd < 0) {
- fprintf(stderr,
- "ERROR: (%i) open cg path failed: %s\n",
- cg_fd, optarg);
- return cg_fd;
- }
+ if (setup_cgroup_environment()) {
+ fprintf(stderr, "ERROR: cgroup env failed\n");
+ return -EINVAL;
+ }
+
+ cg_fd = create_and_get_cgroup(CG_PATH);
+ if (cg_fd < 0) {
+ fprintf(stderr,
+ "ERROR: (%i) open cg path failed: %s\n",
+ cg_fd, optarg);
+ return cg_fd;
+ }
- if (join_cgroup(CG_PATH)) {
- fprintf(stderr, "ERROR: failed to join cgroup\n");
- return -EINVAL;
+ if (join_cgroup(CG_PATH)) {
+ fprintf(stderr, "ERROR: failed to join cgroup\n");
+ return -EINVAL;
+ }
}
/* Tests basic commands and APIs with range of iov values */
@@ -1394,20 +1393,24 @@ static int __test_suite(char *bpf_file)
out:
printf("Summary: %i PASSED %i FAILED\n", passed, failed);
- cleanup_cgroup_environment();
- close(cg_fd);
+ if (cleanup < 0) {
+ cleanup_cgroup_environment();
+ close(cg_fd);
+ }
return err;
}
-static int test_suite(void)
+static int test_suite(int cg_fd)
{
int err;
- err = __test_suite(BPF_SOCKMAP_FILENAME);
+ err = __test_suite(cg_fd, BPF_SOCKMAP_FILENAME);
if (err)
goto out;
- err = __test_suite(BPF_SOCKHASH_FILENAME);
+ err = __test_suite(cg_fd, BPF_SOCKHASH_FILENAME);
out:
+ if (cg_fd > -1)
+ close(cg_fd);
return err;
}
@@ -1420,7 +1423,7 @@ int main(int argc, char **argv)
int test = PING_PONG;
if (argc < 2)
- return test_suite();
+ return test_suite(-1);
while ((opt = getopt_long(argc, argv, ":dhvc:r:i:l:t:",
long_options, &longindex)) != -1) {
@@ -1486,6 +1489,9 @@ int main(int argc, char **argv)
}
}
+ if (argc <= 3 && cg_fd)
+ return test_suite(cg_fd);
+
if (!cg_fd) {
fprintf(stderr, "%s requires cgroup option: --cgroup <path>\n",
argv[0]);
diff --git a/tools/testing/selftests/bpf/test_tcpbpf_kern.c b/tools/testing/selftests/bpf/test_tcpbpf_kern.c
index 4b7fd540cea9..74f73b33a7b0 100644
--- a/tools/testing/selftests/bpf/test_tcpbpf_kern.c
+++ b/tools/testing/selftests/bpf/test_tcpbpf_kern.c
@@ -5,6 +5,7 @@
#include <linux/if_ether.h>
#include <linux/if_packet.h>
#include <linux/ip.h>
+#include <linux/ipv6.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/tcp.h>
@@ -17,6 +18,13 @@ struct bpf_map_def SEC("maps") global_map = {
.type = BPF_MAP_TYPE_ARRAY,
.key_size = sizeof(__u32),
.value_size = sizeof(struct tcpbpf_globals),
+ .max_entries = 4,
+};
+
+struct bpf_map_def SEC("maps") sockopt_results = {
+ .type = BPF_MAP_TYPE_ARRAY,
+ .key_size = sizeof(__u32),
+ .value_size = sizeof(int),
.max_entries = 2,
};
@@ -45,11 +53,14 @@ int _version SEC("version") = 1;
SEC("sockops")
int bpf_testcb(struct bpf_sock_ops *skops)
{
- int rv = -1;
- int bad_call_rv = 0;
+ char header[sizeof(struct ipv6hdr) + sizeof(struct tcphdr)];
+ struct tcphdr *thdr;
int good_call_rv = 0;
- int op;
+ int bad_call_rv = 0;
+ int save_syn = 1;
+ int rv = -1;
int v = 0;
+ int op;
op = (int) skops->op;
@@ -82,6 +93,21 @@ int bpf_testcb(struct bpf_sock_ops *skops)
v = 0xff;
rv = bpf_setsockopt(skops, SOL_IPV6, IPV6_TCLASS, &v,
sizeof(v));
+ if (skops->family == AF_INET6) {
+ v = bpf_getsockopt(skops, IPPROTO_TCP, TCP_SAVED_SYN,
+ header, (sizeof(struct ipv6hdr) +
+ sizeof(struct tcphdr)));
+ if (!v) {
+ int offset = sizeof(struct ipv6hdr);
+
+ thdr = (struct tcphdr *)(header + offset);
+ v = thdr->syn;
+ __u32 key = 1;
+
+ bpf_map_update_elem(&sockopt_results, &key, &v,
+ BPF_ANY);
+ }
+ }
break;
case BPF_SOCK_OPS_RTO_CB:
break;
@@ -111,6 +137,12 @@ int bpf_testcb(struct bpf_sock_ops *skops)
break;
case BPF_SOCK_OPS_TCP_LISTEN_CB:
bpf_sock_ops_cb_flags_set(skops, BPF_SOCK_OPS_STATE_CB_FLAG);
+ v = bpf_setsockopt(skops, IPPROTO_TCP, TCP_SAVE_SYN,
+ &save_syn, sizeof(save_syn));
+ /* Update global map w/ result of setsock opt */
+ __u32 key = 0;
+
+ bpf_map_update_elem(&sockopt_results, &key, &v, BPF_ANY);
break;
default:
rv = -1;
diff --git a/tools/testing/selftests/bpf/test_tcpbpf_user.c b/tools/testing/selftests/bpf/test_tcpbpf_user.c
index a275c2971376..e6eebda7d112 100644
--- a/tools/testing/selftests/bpf/test_tcpbpf_user.c
+++ b/tools/testing/selftests/bpf/test_tcpbpf_user.c
@@ -54,6 +54,26 @@ err:
return -1;
}
+int verify_sockopt_result(int sock_map_fd)
+{
+ __u32 key = 0;
+ int res;
+ int rv;
+
+ /* check setsockopt for SAVE_SYN */
+ rv = bpf_map_lookup_elem(sock_map_fd, &key, &res);
+ EXPECT_EQ(0, rv, "d");
+ EXPECT_EQ(0, res, "d");
+ key = 1;
+ /* check getsockopt for SAVED_SYN */
+ rv = bpf_map_lookup_elem(sock_map_fd, &key, &res);
+ EXPECT_EQ(0, rv, "d");
+ EXPECT_EQ(1, res, "d");
+ return 0;
+err:
+ return -1;
+}
+
static int bpf_find_map(const char *test, struct bpf_object *obj,
const char *name)
{
@@ -70,11 +90,11 @@ static int bpf_find_map(const char *test, struct bpf_object *obj,
int main(int argc, char **argv)
{
const char *file = "test_tcpbpf_kern.o";
+ int prog_fd, map_fd, sock_map_fd;
struct tcpbpf_globals g = {0};
const char *cg_path = "/foo";
int error = EXIT_FAILURE;
struct bpf_object *obj;
- int prog_fd, map_fd;
int cg_fd = -1;
__u32 key = 0;
int rv;
@@ -110,6 +130,10 @@ int main(int argc, char **argv)
if (map_fd < 0)
goto err;
+ sock_map_fd = bpf_find_map(__func__, obj, "sockopt_results");
+ if (sock_map_fd < 0)
+ goto err;
+
rv = bpf_map_lookup_elem(map_fd, &key, &g);
if (rv != 0) {
printf("FAILED: bpf_map_lookup_elem returns %d\n", rv);
@@ -121,6 +145,11 @@ int main(int argc, char **argv)
goto err;
}
+ if (verify_sockopt_result(sock_map_fd)) {
+ printf("FAILED: Wrong sockopt stats\n");
+ goto err;
+ }
+
printf("PASSED!\n");
error = 0;
err:
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-19 02:27:20 +0300