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-rw-r--r--tools/testing/selftests/bpf/Makefile2
-rw-r--r--tools/testing/selftests/bpf/sockmap_parse_prog.c38
-rw-r--r--tools/testing/selftests/bpf/sockmap_verdict_prog.c48
-rw-r--r--tools/testing/selftests/bpf/test_maps.c308
-rw-r--r--tools/testing/selftests/bpf/test_progs.c55
5 files changed, 412 insertions, 39 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 3c2e67da4b41..f4b23d697448 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -15,7 +15,7 @@ TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test
test_align
TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o test_obj_id.o \
- test_pkt_md_access.o test_xdp_redirect.o
+ test_pkt_md_access.o test_xdp_redirect.o sockmap_parse_prog.o sockmap_verdict_prog.o
TEST_PROGS := test_kmod.sh test_xdp_redirect.sh
diff --git a/tools/testing/selftests/bpf/sockmap_parse_prog.c b/tools/testing/selftests/bpf/sockmap_parse_prog.c
new file mode 100644
index 000000000000..8b5453158399
--- /dev/null
+++ b/tools/testing/selftests/bpf/sockmap_parse_prog.c
@@ -0,0 +1,38 @@
+#include <linux/bpf.h>
+#include "bpf_helpers.h"
+#include "bpf_util.h"
+#include "bpf_endian.h"
+
+int _version SEC("version") = 1;
+
+#define bpf_printk(fmt, ...) \
+({ \
+ char ____fmt[] = fmt; \
+ bpf_trace_printk(____fmt, sizeof(____fmt), \
+ ##__VA_ARGS__); \
+})
+
+SEC("sk_skb1")
+int bpf_prog1(struct __sk_buff *skb)
+{
+ void *data_end = (void *)(long) skb->data_end;
+ void *data = (void *)(long) skb->data;
+ __u32 lport = skb->local_port;
+ __u32 rport = skb->remote_port;
+ char *d = data;
+
+ if (data + 8 > data_end)
+ return skb->len;
+
+ /* This write/read is a bit pointless but tests the verifier and
+ * strparser handler for read/write pkt data and access into sk
+ * fields.
+ */
+ d[0] = 1;
+
+ bpf_printk("data[0] = (%u): local_port %i remote %i\n",
+ d[0], lport, bpf_ntohl(rport));
+ return skb->len;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/sockmap_verdict_prog.c b/tools/testing/selftests/bpf/sockmap_verdict_prog.c
new file mode 100644
index 000000000000..d5f9447b3808
--- /dev/null
+++ b/tools/testing/selftests/bpf/sockmap_verdict_prog.c
@@ -0,0 +1,48 @@
+#include <linux/bpf.h>
+#include "bpf_helpers.h"
+#include "bpf_util.h"
+#include "bpf_endian.h"
+
+int _version SEC("version") = 1;
+
+#define bpf_printk(fmt, ...) \
+({ \
+ char ____fmt[] = fmt; \
+ bpf_trace_printk(____fmt, sizeof(____fmt), \
+ ##__VA_ARGS__); \
+})
+
+struct bpf_map_def SEC("maps") sock_map = {
+ .type = BPF_MAP_TYPE_SOCKMAP,
+ .key_size = sizeof(int),
+ .value_size = sizeof(int),
+ .max_entries = 20,
+};
+
+SEC("sk_skb2")
+int bpf_prog2(struct __sk_buff *skb)
+{
+ void *data_end = (void *)(long) skb->data_end;
+ void *data = (void *)(long) skb->data;
+ __u32 lport = skb->local_port;
+ __u32 rport = skb->remote_port;
+ char *d = data;
+
+ if (data + 8 > data_end)
+ return SK_DROP;
+
+ d[0] = 0xd;
+ d[1] = 0xe;
+ d[2] = 0xa;
+ d[3] = 0xd;
+ d[4] = 0xb;
+ d[5] = 0xe;
+ d[6] = 0xe;
+ d[7] = 0xf;
+
+ bpf_printk("data[0] = (%u): local_port %i remote %i\n",
+ d[0], lport, bpf_ntohl(rport));
+ return bpf_sk_redirect_map(&sock_map, 5, 0);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c
index c991ab69a720..40b2d1faf02b 100644
--- a/tools/testing/selftests/bpf/test_maps.c
+++ b/tools/testing/selftests/bpf/test_maps.c
@@ -22,6 +22,7 @@
#include <linux/bpf.h>
#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
#include "bpf_util.h"
static int map_flags;
@@ -453,6 +454,312 @@ static void test_devmap(int task, void *data)
close(fd);
}
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <arpa/inet.h>
+#include <sys/select.h>
+#include <linux/err.h>
+#define SOCKMAP_PARSE_PROG "./sockmap_parse_prog.o"
+#define SOCKMAP_VERDICT_PROG "./sockmap_verdict_prog.o"
+static void test_sockmap(int task, void *data)
+{
+ int ports[] = {50200, 50201, 50202, 50204};
+ int err, i, fd, sfd[6] = {0xdeadbeef};
+ char buf[] = "hello sockmap user\n";
+ int one = 1, map_fd, s, sc, rc;
+ int parse_prog, verdict_prog;
+ struct bpf_map *bpf_map;
+ struct sockaddr_in addr;
+ struct bpf_object *obj;
+ struct timeval to;
+ __u32 key, value;
+ fd_set w;
+
+ /* Create some sockets to use with sockmap */
+ for (i = 0; i < 2; i++) {
+ sfd[i] = socket(AF_INET, SOCK_STREAM, 0);
+ if (sfd[i] < 0)
+ goto out;
+ err = setsockopt(sfd[i], SOL_SOCKET, SO_REUSEADDR,
+ (char *)&one, sizeof(one));
+ if (err) {
+ printf("failed to setsockopt\n");
+ goto out;
+ }
+ err = ioctl(sfd[i], FIONBIO, (char *)&one);
+ if (err < 0) {
+ printf("failed to ioctl\n");
+ goto out;
+ }
+ memset(&addr, 0, sizeof(struct sockaddr_in));
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+ addr.sin_port = htons(ports[i]);
+ err = bind(sfd[i], (struct sockaddr *)&addr, sizeof(addr));
+ if (err < 0) {
+ printf("failed to bind: err %i: %i:%i\n",
+ err, i, sfd[i]);
+ goto out;
+ }
+ err = listen(sfd[i], 32);
+ if (err < 0) {
+ printf("failed to listeen\n");
+ goto out;
+ }
+ }
+
+ for (i = 2; i < 4; i++) {
+ sfd[i] = socket(AF_INET, SOCK_STREAM, 0);
+ if (sfd[i] < 0)
+ goto out;
+ err = setsockopt(sfd[i], SOL_SOCKET, SO_REUSEADDR,
+ (char *)&one, sizeof(one));
+ if (err) {
+ printf("set sock opt\n");
+ goto out;
+ }
+ memset(&addr, 0, sizeof(struct sockaddr_in));
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+ addr.sin_port = htons(ports[i - 2]);
+ err = connect(sfd[i], (struct sockaddr *)&addr, sizeof(addr));
+ if (err) {
+ printf("failed to conenct\n");
+ goto out;
+ }
+ }
+
+
+ for (i = 4; i < 6; i++) {
+ sfd[i] = accept(sfd[i - 4], NULL, NULL);
+ if (sfd[i] < 0) {
+ printf("accept failed\n");
+ goto out;
+ }
+ }
+
+ /* Test sockmap with connected sockets */
+ fd = bpf_create_map(BPF_MAP_TYPE_SOCKMAP,
+ sizeof(key), sizeof(value),
+ 6, 0);
+ if (fd < 0) {
+ printf("Failed to create sockmap %i\n", fd);
+ goto out_sockmap;
+ }
+
+ /* Nothing attached so these should fail */
+ for (i = 0; i < 6; i++) {
+ err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY);
+ if (!err) {
+ printf("Failed invalid update sockmap '%i:%i'\n",
+ i, sfd[i]);
+ goto out_sockmap;
+ }
+ }
+
+ /* Test attaching bad fds */
+ err = __bpf_prog_attach(-1, -2, fd, BPF_CGROUP_SMAP_INGRESS, 0);
+ if (!err) {
+ printf("Failed invalid prog attach\n");
+ goto out_sockmap;
+ }
+
+ /* Load SK_SKB program and Attach */
+ err = bpf_prog_load(SOCKMAP_PARSE_PROG,
+ BPF_PROG_TYPE_SK_SKB, &obj, &parse_prog);
+ if (err) {
+ printf("Failed to load SK_SKB parse prog\n");
+ goto out_sockmap;
+ }
+
+ err = bpf_prog_load(SOCKMAP_VERDICT_PROG,
+ BPF_PROG_TYPE_SK_SKB, &obj, &verdict_prog);
+ if (err) {
+ printf("Failed to load SK_SKB verdict prog\n");
+ goto out_sockmap;
+ }
+
+ bpf_map = bpf_object__find_map_by_name(obj, "sock_map");
+ if (IS_ERR(bpf_map)) {
+ printf("Failed to load map from verdict prog\n");
+ goto out_sockmap;
+ }
+
+ map_fd = bpf_map__fd(bpf_map);
+ if (map_fd < 0) {
+ printf("Failed to get map fd\n");
+ goto out_sockmap;
+ }
+
+ err = __bpf_prog_attach(parse_prog, verdict_prog, map_fd,
+ BPF_CGROUP_SMAP_INGRESS, 0);
+ if (err) {
+ printf("Failed bpf prog attach\n");
+ goto out_sockmap;
+ }
+
+ /* Test map update elem */
+ for (i = 0; i < 6; i++) {
+ err = bpf_map_update_elem(map_fd, &i, &sfd[i], BPF_ANY);
+ if (err) {
+ printf("Failed map_fd update sockmap %i '%i:%i'\n",
+ err, i, sfd[i]);
+ goto out_sockmap;
+ }
+ }
+
+ /* Test map delete elem and remove send/recv sockets */
+ for (i = 2; i < 4; i++) {
+ err = bpf_map_delete_elem(map_fd, &i);
+ if (err) {
+ printf("Failed delete sockmap %i '%i:%i'\n",
+ err, i, sfd[i]);
+ goto out_sockmap;
+ }
+ }
+
+ /* Test map send/recv */
+ sc = send(sfd[2], buf, 10, 0);
+ if (sc < 0) {
+ printf("Failed sockmap send\n");
+ goto out_sockmap;
+ }
+
+ FD_ZERO(&w);
+ FD_SET(sfd[3], &w);
+ to.tv_sec = 1;
+ to.tv_usec = 0;
+ s = select(sfd[3] + 1, &w, NULL, NULL, &to);
+ if (s == -1) {
+ perror("Failed sockmap select()");
+ goto out_sockmap;
+ } else if (!s) {
+ printf("Failed sockmap unexpected timeout\n");
+ goto out_sockmap;
+ }
+
+ if (!FD_ISSET(sfd[3], &w)) {
+ printf("Failed sockmap select/recv\n");
+ goto out_sockmap;
+ }
+
+ rc = recv(sfd[3], buf, sizeof(buf), 0);
+ if (rc < 0) {
+ printf("Failed sockmap recv\n");
+ goto out_sockmap;
+ }
+
+ /* Delete the reset of the elems include some NULL elems */
+ for (i = 0; i < 6; i++) {
+ err = bpf_map_delete_elem(map_fd, &i);
+ if (err && (i == 0 || i == 1 || i >= 4)) {
+ printf("Failed delete sockmap %i '%i:%i'\n",
+ err, i, sfd[i]);
+ goto out_sockmap;
+ } else if (!err && (i == 2 || i == 3)) {
+ printf("Failed null delete sockmap %i '%i:%i'\n",
+ err, i, sfd[i]);
+ goto out_sockmap;
+ }
+ }
+
+ /* Test having multiple SMAPs open and active on same fds */
+ err = __bpf_prog_attach(parse_prog, verdict_prog, fd,
+ BPF_CGROUP_SMAP_INGRESS, 0);
+ if (err) {
+ printf("Failed fd bpf prog attach\n");
+ goto out_sockmap;
+ }
+
+ for (i = 0; i < 6; i++) {
+ err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY);
+ if (err) {
+ printf("Failed fd update sockmap %i '%i:%i'\n",
+ err, i, sfd[i]);
+ goto out_sockmap;
+ }
+ }
+
+ /* Test duplicate socket add of NOEXIST, ANY and EXIST */
+ i = 0;
+ err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_NOEXIST);
+ if (!err) {
+ printf("Failed BPF_NOEXIST create\n");
+ goto out_sockmap;
+ }
+
+ err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY);
+ if (err) {
+ printf("Failed sockmap update BPF_ANY\n");
+ goto out_sockmap;
+ }
+
+ err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_EXIST);
+ if (err) {
+ printf("Failed sockmap update BPF_EXIST\n");
+ goto out_sockmap;
+ }
+
+ /* The above were pushing fd into same slot try different slot now */
+ i = 2;
+ err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_NOEXIST);
+ if (!err) {
+ printf("Failed BPF_NOEXIST create\n");
+ goto out_sockmap;
+ }
+
+ err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY);
+ if (err) {
+ printf("Failed sockmap update BPF_ANY\n");
+ goto out_sockmap;
+ }
+
+ err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_EXIST);
+ if (err) {
+ printf("Failed sockmap update BPF_EXIST\n");
+ goto out_sockmap;
+ }
+
+ /* Try pushing fd into different map, this is not allowed at the
+ * moment. Which programs would we use?
+ */
+ err = bpf_map_update_elem(map_fd, &i, &sfd[i], BPF_NOEXIST);
+ if (!err) {
+ printf("Failed BPF_NOEXIST create\n");
+ goto out_sockmap;
+ }
+
+ err = bpf_map_update_elem(map_fd, &i, &sfd[i], BPF_ANY);
+ if (!err) {
+ printf("Failed sockmap update BPF_ANY\n");
+ goto out_sockmap;
+ }
+
+ err = bpf_map_update_elem(map_fd, &i, &sfd[i], BPF_EXIST);
+ if (!err) {
+ printf("Failed sockmap update BPF_EXIST\n");
+ goto out_sockmap;
+ }
+
+ /* Test map close sockets */
+ for (i = 0; i < 6; i++)
+ close(sfd[i]);
+ close(fd);
+ close(map_fd);
+ bpf_object__close(obj);
+ return;
+out:
+ for (i = 0; i < 6; i++)
+ close(sfd[i]);
+ printf("Failed to create sockmap '%i:%s'!\n", i, strerror(errno));
+ exit(1);
+out_sockmap:
+ for (i = 0; i < 6; i++)
+ close(sfd[i]);
+ close(fd);
+ exit(1);
+}
+
#define MAP_SIZE (32 * 1024)
static void test_map_large(void)
@@ -621,6 +928,7 @@ static void run_all_tests(void)
test_arraymap_percpu_many_keys();
test_devmap(0, NULL);
+ test_sockmap(0, NULL);
test_map_large();
test_map_parallel();
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index 1f7dd35551b9..1cb037803679 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -75,39 +75,6 @@ static struct {
__ret; \
})
-static int bpf_prog_load(const char *file, enum bpf_prog_type type,
- struct bpf_object **pobj, int *prog_fd)
-{
- struct bpf_program *prog;
- struct bpf_object *obj;
- int err;
-
- obj = bpf_object__open(file);
- if (IS_ERR(obj)) {
- error_cnt++;
- return -ENOENT;
- }
-
- prog = bpf_program__next(NULL, obj);
- if (!prog) {
- bpf_object__close(obj);
- error_cnt++;
- return -ENOENT;
- }
-
- bpf_program__set_type(prog, type);
- err = bpf_object__load(obj);
- if (err) {
- bpf_object__close(obj);
- error_cnt++;
- return -EINVAL;
- }
-
- *pobj = obj;
- *prog_fd = bpf_program__fd(prog);
- return 0;
-}
-
static int bpf_find_map(const char *test, struct bpf_object *obj,
const char *name)
{
@@ -130,8 +97,10 @@ static void test_pkt_access(void)
int err, prog_fd;
err = bpf_prog_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
- if (err)
+ if (err) {
+ error_cnt++;
return;
+ }
err = bpf_prog_test_run(prog_fd, 100000, &pkt_v4, sizeof(pkt_v4),
NULL, NULL, &retval, &duration);
@@ -162,8 +131,10 @@ static void test_xdp(void)
int err, prog_fd, map_fd;
err = bpf_prog_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
- if (err)
+ if (err) {
+ error_cnt++;
return;
+ }
map_fd = bpf_find_map(__func__, obj, "vip2tnl");
if (map_fd < 0)
@@ -223,8 +194,10 @@ static void test_l4lb(void)
u32 *magic = (u32 *)buf;
err = bpf_prog_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
- if (err)
+ if (err) {
+ error_cnt++;
return;
+ }
map_fd = bpf_find_map(__func__, obj, "vip_map");
if (map_fd < 0)
@@ -280,8 +253,10 @@ static void test_tcp_estats(void)
err = bpf_prog_load(file, BPF_PROG_TYPE_TRACEPOINT, &obj, &prog_fd);
CHECK(err, "", "err %d errno %d\n", err, errno);
- if (err)
+ if (err) {
+ error_cnt++;
return;
+ }
bpf_object__close(obj);
}
@@ -336,6 +311,8 @@ static void test_bpf_obj_id(void)
/* test_obj_id.o is a dumb prog. It should never fail
* to load.
*/
+ if (err)
+ error_cnt++;
assert(!err);
/* Check getting prog info */
@@ -496,8 +473,10 @@ static void test_pkt_md_access(void)
int err, prog_fd;
err = bpf_prog_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
- if (err)
+ if (err) {
+ error_cnt++;
return;
+ }
err = bpf_prog_test_run(prog_fd, 10, &pkt_v4, sizeof(pkt_v4),
NULL, NULL, &retval, &duration);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-22 22:37:26 +0300