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-rw-r--r--tools/testing/selftests/bpf/test_sockmap.c723
1 files changed, 348 insertions, 375 deletions
diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c
index 9a7e10424584..ad0540acc0eb 100644
--- a/tools/testing/selftests/bpf/test_sockmap.c
+++ b/tools/testing/selftests/bpf/test_sockmap.c
@@ -54,7 +54,7 @@ static void running_handler(int a);
#define S1_PORT 10000
#define S2_PORT 10001
-#define BPF_SOCKMAP_FILENAME "test_sockmap_kern.o"
+#define BPF_SOCKMAP_FILENAME "test_sockmap_kern.o"
#define BPF_SOCKHASH_FILENAME "test_sockhash_kern.o"
#define CG_PATH "/sockmap"
@@ -110,6 +110,76 @@ static const struct option long_options[] = {
{0, 0, NULL, 0 }
};
+struct test_env {
+ const char *type;
+ const char *subtest;
+
+ int test_num;
+ int subtest_num;
+
+ int succ_cnt;
+ int fail_cnt;
+ int fail_last;
+};
+
+struct test_env env;
+
+static void test_start(void)
+{
+ env.subtest_num++;
+}
+
+static void test_fail(void)
+{
+ env.fail_cnt++;
+}
+
+static void test_pass(void)
+{
+ env.succ_cnt++;
+}
+
+static void test_reset(void)
+{
+ txmsg_start = txmsg_end = 0;
+ txmsg_start_pop = txmsg_pop = 0;
+ txmsg_start_push = txmsg_end_push = 0;
+ txmsg_pass = txmsg_drop = txmsg_redir = 0;
+ txmsg_apply = txmsg_cork = 0;
+ txmsg_ingress = txmsg_skb = 0;
+}
+
+static int test_start_subtest(const char *name, const char *type)
+{
+ env.type = type;
+ env.subtest = name;
+ env.test_num++;
+ env.subtest_num = 0;
+ env.fail_last = env.fail_cnt;
+ test_reset();
+ return 0;
+}
+
+static void test_end_subtest(void)
+{
+ int error = env.fail_cnt - env.fail_last;
+ int type = strcmp(env.type, BPF_SOCKMAP_FILENAME);
+
+ if (!error)
+ test_pass();
+
+ fprintf(stdout, "#%2d/%2d %8s:%s:%s\n",
+ env.test_num, env.subtest_num,
+ !type ? "sockmap" : "sockhash",
+ env.subtest, error ? "FAIL" : "OK");
+}
+
+static void test_print_results(void)
+{
+ fprintf(stdout, "Pass: %d Fail: %d\n",
+ env.succ_cnt, env.fail_cnt);
+}
+
static void usage(char *argv[])
{
int i;
@@ -316,6 +386,7 @@ struct sockmap_options {
int iov_count;
int iov_length;
int rate;
+ char *map;
};
static int msg_loop_sendpage(int fd, int iov_length, int cnt,
@@ -1169,416 +1240,305 @@ static int __test_exec(int cgrp, int test, struct sockmap_options *opt)
test_options(options);
- fprintf(stdout,
- "[TEST %i]: (%i, %i, %i, %s, %s): ",
- test_cnt, opt->rate, opt->iov_count, opt->iov_length,
- test_to_str(test), options);
- fflush(stdout);
+ if (opt->verbose) {
+ fprintf(stdout,
+ "[TEST %i]: (%i, %i, %i, %s, %s): ",
+ test_cnt, opt->rate, opt->iov_count, opt->iov_length,
+ test_to_str(test), options);
+ fflush(stdout);
+ }
err = run_options(opt, cgrp, test);
- fprintf(stdout, "%s\n", !err ? "PASS" : "FAILED");
+ if (opt->verbose)
+ fprintf(stdout, "%s\n", !err ? "PASS" : "FAILED");
test_cnt++;
!err ? passed++ : failed++;
free(options);
return err;
}
-static int test_exec(int cgrp, struct sockmap_options *opt)
-{
- int err = __test_exec(cgrp, SENDMSG, opt);
-
- if (err)
- goto out;
-
- err = __test_exec(cgrp, SENDPAGE, opt);
-out:
- return err;
-}
-
-static int test_loop(int cgrp)
-{
- struct sockmap_options opt;
-
- int err, i, l, r;
-
- opt.verbose = 0;
- opt.base = false;
- opt.sendpage = false;
- opt.data_test = false;
- opt.drop_expected = false;
- opt.iov_count = 0;
- opt.iov_length = 0;
- opt.rate = 0;
-
- r = 1;
- for (i = 1; i < 100; i += 33) {
- for (l = 1; l < 100; l += 33) {
- opt.rate = r;
- opt.iov_count = i;
- opt.iov_length = l;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
- }
- }
- sched_yield();
-out:
- return err;
-}
-
-static int test_txmsg(int cgrp)
+static void test_exec(int cgrp, struct sockmap_options *opt)
{
+ int type = strcmp(opt->map, BPF_SOCKMAP_FILENAME);
int err;
- txmsg_pass = txmsg_drop = 0;
- txmsg_apply = txmsg_cork = 0;
- txmsg_ingress = txmsg_skb = 0;
-
- txmsg_pass = 1;
- err = test_loop(cgrp);
- txmsg_pass = 0;
- if (err)
- goto out;
-
- txmsg_redir = 1;
- err = test_loop(cgrp);
- txmsg_redir = 0;
- if (err)
- goto out;
-
- txmsg_drop = 1;
- err = test_loop(cgrp);
- txmsg_drop = 0;
- if (err)
- goto out;
-
- txmsg_redir = 1;
- txmsg_ingress = 1;
- err = test_loop(cgrp);
- txmsg_redir = 0;
- txmsg_ingress = 0;
- if (err)
- goto out;
-out:
- txmsg_pass = 0;
- txmsg_redir = 0;
- txmsg_drop = 0;
- return err;
+ if (type == 0) {
+ test_start();
+ err = __test_exec(cgrp, SENDMSG, opt);
+ if (err)
+ test_fail();
+ } else {
+ test_start();
+ err = __test_exec(cgrp, SENDPAGE, opt);
+ if (err)
+ test_fail();
+ }
}
-static int test_send(struct sockmap_options *opt, int cgrp)
+static void test_send_one(struct sockmap_options *opt, int cgrp)
{
- int err;
-
opt->iov_length = 1;
opt->iov_count = 1;
opt->rate = 1;
- err = test_exec(cgrp, opt);
- if (err)
- goto out;
+ test_exec(cgrp, opt);
opt->iov_length = 1;
opt->iov_count = 1024;
opt->rate = 1;
- err = test_exec(cgrp, opt);
- if (err)
- goto out;
+ test_exec(cgrp, opt);
opt->iov_length = 1024;
opt->iov_count = 1;
opt->rate = 1;
- err = test_exec(cgrp, opt);
- if (err)
- goto out;
+ test_exec(cgrp, opt);
- opt->iov_length = 1;
+}
+
+static void test_send_many(struct sockmap_options *opt, int cgrp)
+{
+ opt->iov_length = 3;
opt->iov_count = 1;
opt->rate = 512;
- err = test_exec(cgrp, opt);
- if (err)
- goto out;
+ test_exec(cgrp, opt);
+
+ opt->rate = 100;
+ opt->iov_count = 1;
+ opt->iov_length = 5;
+ test_exec(cgrp, opt);
+}
+static void test_send_large(struct sockmap_options *opt, int cgrp)
+{
opt->iov_length = 256;
opt->iov_count = 1024;
opt->rate = 2;
- err = test_exec(cgrp, opt);
- if (err)
- goto out;
+ test_exec(cgrp, opt);
+}
- opt->rate = 100;
- opt->iov_count = 1;
- opt->iov_length = 5;
- err = test_exec(cgrp, opt);
- if (err)
- goto out;
-out:
+static void test_send(struct sockmap_options *opt, int cgrp)
+{
+ test_send_one(opt, cgrp);
+ test_send_many(opt, cgrp);
+ test_send_large(opt, cgrp);
sched_yield();
- return err;
}
-static int test_mixed(int cgrp)
+static void test_txmsg_pass(int cgrp, char *map)
{
- struct sockmap_options opt = {0};
- int err;
-
- txmsg_pass = txmsg_drop = 0;
- txmsg_apply = txmsg_cork = 0;
- txmsg_start = txmsg_end = 0;
- txmsg_start_push = txmsg_end_push = 0;
- txmsg_start_pop = txmsg_pop = 0;
+ struct sockmap_options opt = {.map = map};
/* Test small and large iov_count values with pass/redir/apply/cork */
txmsg_pass = 1;
- txmsg_redir = 0;
- txmsg_apply = 1;
- txmsg_cork = 0;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+ test_send(&opt, cgrp);
+}
- txmsg_pass = 1;
- txmsg_redir = 0;
- txmsg_apply = 0;
- txmsg_cork = 1;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+static void test_txmsg_redir(int cgrp, char *map)
+{
+ struct sockmap_options opt = {.map = map};
- txmsg_pass = 1;
- txmsg_redir = 0;
- txmsg_apply = 1;
- txmsg_cork = 1;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+ txmsg_redir = 1;
+ test_send(&opt, cgrp);
+}
- txmsg_pass = 1;
- txmsg_redir = 0;
- txmsg_apply = 1024;
- txmsg_cork = 0;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+static void test_txmsg_drop(int cgrp, char *map)
+{
+ struct sockmap_options opt = {.map = map};
- txmsg_pass = 1;
- txmsg_redir = 0;
- txmsg_apply = 0;
- txmsg_cork = 1024;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+ txmsg_drop = 1;
+ test_send(&opt, cgrp);
+}
- txmsg_pass = 1;
- txmsg_redir = 0;
- txmsg_apply = 1024;
- txmsg_cork = 1024;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+static void test_txmsg_ingress_redir(int cgrp, char *map)
+{
+ struct sockmap_options opt = {.map = map};
+
+ txmsg_pass = txmsg_drop = 0;
+ txmsg_ingress = txmsg_redir = 1;
+ test_send(&opt, cgrp);
+}
+
+/* Test cork with hung data. This tests poor usage patterns where
+ * cork can leave data on the ring if user program is buggy and
+ * doesn't flush them somehow. They do take some time however
+ * because they wait for a timeout. Test pass, redir and cork with
+ * apply logic. Use cork size of 4097 with send_large to avoid
+ * aligning cork size with send size.
+ */
+static void test_txmsg_cork_hangs(int cgrp, char *map)
+{
+ struct sockmap_options opt = {.map = map};
txmsg_pass = 1;
txmsg_redir = 0;
- txmsg_cork = 4096;
- txmsg_apply = 4096;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
-
- txmsg_pass = 0;
- txmsg_redir = 1;
- txmsg_apply = 1;
- txmsg_cork = 0;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+ txmsg_cork = 4097;
+ txmsg_apply = 4097;
+ test_send_large(&opt, cgrp);
txmsg_pass = 0;
txmsg_redir = 1;
txmsg_apply = 0;
- txmsg_cork = 1;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+ txmsg_cork = 4097;
+ test_send_large(&opt, cgrp);
txmsg_pass = 0;
txmsg_redir = 1;
- txmsg_apply = 1024;
- txmsg_cork = 0;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+ txmsg_apply = 4097;
+ txmsg_cork = 4097;
+ test_send_large(&opt, cgrp);
+}
- txmsg_pass = 0;
+static void test_txmsg_pull(int cgrp, char *map)
+{
+ struct sockmap_options opt = {.map = map};
+
+ /* Test basic start/end */
+ txmsg_start = 1;
+ txmsg_end = 2;
+ test_send(&opt, cgrp);
+
+ /* Test >4k pull */
+ txmsg_start = 4096;
+ txmsg_end = 9182;
+ test_send_large(&opt, cgrp);
+
+ /* Test pull + redirect */
+ txmsg_redir = 0;
+ txmsg_start = 1;
+ txmsg_end = 2;
+ test_send(&opt, cgrp);
+
+ /* Test pull + cork */
+ txmsg_redir = 0;
+ txmsg_cork = 512;
+ txmsg_start = 1;
+ txmsg_end = 2;
+ test_send_many(&opt, cgrp);
+
+ /* Test pull + cork + redirect */
txmsg_redir = 1;
- txmsg_apply = 0;
- txmsg_cork = 1024;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+ txmsg_cork = 512;
+ txmsg_start = 1;
+ txmsg_end = 2;
+ test_send_many(&opt, cgrp);
+}
- txmsg_pass = 0;
+static void test_txmsg_pop(int cgrp, char *map)
+{
+ struct sockmap_options opt = {.map = map};
+
+ /* Test basic pop */
+ txmsg_start_pop = 1;
+ txmsg_pop = 2;
+ test_send_many(&opt, cgrp);
+
+ /* Test pop with >4k */
+ txmsg_start_pop = 4096;
+ txmsg_pop = 4096;
+ test_send_large(&opt, cgrp);
+
+ /* Test pop + redirect */
txmsg_redir = 1;
- txmsg_apply = 1024;
- txmsg_cork = 1024;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
+ txmsg_start_pop = 1;
+ txmsg_pop = 2;
+ test_send_many(&opt, cgrp);
- txmsg_pass = 0;
+ /* Test pop + cork */
+ txmsg_redir = 0;
+ txmsg_cork = 512;
+ txmsg_start_pop = 1;
+ txmsg_pop = 2;
+ test_send_many(&opt, cgrp);
+
+ /* Test pop + redirect + cork */
txmsg_redir = 1;
- txmsg_cork = 4096;
- txmsg_apply = 4096;
- err = test_send(&opt, cgrp);
- if (err)
- goto out;
-out:
- return err;
+ txmsg_cork = 4;
+ txmsg_start_pop = 1;
+ txmsg_pop = 2;
+ test_send_many(&opt, cgrp);
}
-static int test_start_end(int cgrp)
+static void test_txmsg_push(int cgrp, char *map)
{
- struct sockmap_options opt = {0};
- int err, i;
+ struct sockmap_options opt = {.map = map};
- /* Test basic start/end with lots of iov_count and iov_lengths */
- txmsg_start = 1;
- txmsg_end = 2;
+ /* Test basic push */
+ txmsg_start_push = 1;
+ txmsg_end_push = 1;
+ test_send(&opt, cgrp);
+
+ /* Test push 4kB >4k */
+ txmsg_start_push = 4096;
+ txmsg_end_push = 4096;
+ test_send_large(&opt, cgrp);
+
+ /* Test push + redirect */
+ txmsg_redir = 1;
txmsg_start_push = 1;
txmsg_end_push = 2;
- txmsg_start_pop = 1;
- txmsg_pop = 1;
- err = test_txmsg(cgrp);
- if (err)
- goto out;
+ test_send_many(&opt, cgrp);
- /* Cut a byte of pushed data but leave reamining in place */
- txmsg_start = 1;
- txmsg_end = 2;
+ /* Test push + cork */
+ txmsg_redir = 0;
+ txmsg_cork = 512;
txmsg_start_push = 1;
- txmsg_end_push = 3;
- txmsg_start_pop = 1;
- txmsg_pop = 1;
- err = test_txmsg(cgrp);
- if (err)
- goto out;
+ txmsg_end_push = 2;
+ test_send_many(&opt, cgrp);
+}
- /* Test start/end with cork */
- opt.rate = 16;
- opt.iov_count = 1;
- opt.iov_length = 100;
- txmsg_cork = 1600;
-
- txmsg_start_pop = 0;
- txmsg_pop = 0;
-
- for (i = 99; i <= 1600; i += 500) {
- txmsg_start = 0;
- txmsg_end = i;
- txmsg_start_push = 0;
- txmsg_end_push = i;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
- }
+static void test_txmsg_push_pop(int cgrp, char *map)
+{
+ struct sockmap_options opt = {.map = map};
- /* Test pop data in middle of cork */
- for (i = 99; i <= 1600; i += 500) {
- txmsg_start_pop = 10;
- txmsg_pop = i;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
- }
- txmsg_start_pop = 0;
- txmsg_pop = 0;
-
- /* Test start/end with cork but pull data in middle */
- for (i = 199; i <= 1600; i += 500) {
- txmsg_start = 100;
- txmsg_end = i;
- txmsg_start_push = 100;
- txmsg_end_push = i;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
- }
+ txmsg_start_push = 1;
+ txmsg_end_push = 10;
+ txmsg_start_pop = 5;
+ txmsg_pop = 4;
+ test_send_large(&opt, cgrp);
+}
- /* Test start/end with cork pulling last sg entry */
- txmsg_start = 1500;
- txmsg_end = 1600;
- txmsg_start_push = 1500;
- txmsg_end_push = 1600;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
+static void test_txmsg_apply(int cgrp, char *map)
+{
+ struct sockmap_options opt = {.map = map};
- /* Test pop with cork pulling last sg entry */
- txmsg_start_pop = 1500;
- txmsg_pop = 1600;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
- txmsg_start_pop = 0;
- txmsg_pop = 0;
-
- /* Test start/end pull of single byte in last page */
- txmsg_start = 1111;
- txmsg_end = 1112;
- txmsg_start_push = 1111;
- txmsg_end_push = 1112;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
+ txmsg_pass = 1;
+ txmsg_redir = 0;
+ txmsg_apply = 1;
+ txmsg_cork = 0;
+ test_send_one(&opt, cgrp);
- /* Test pop of single byte in last page */
- txmsg_start_pop = 1111;
- txmsg_pop = 1112;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
+ txmsg_pass = 0;
+ txmsg_redir = 1;
+ txmsg_apply = 1;
+ txmsg_cork = 0;
+ test_send_one(&opt, cgrp);
- /* Test start/end with end < start */
- txmsg_start = 1111;
- txmsg_end = 0;
- txmsg_start_push = 1111;
- txmsg_end_push = 0;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
+ txmsg_pass = 1;
+ txmsg_redir = 0;
+ txmsg_apply = 1024;
+ txmsg_cork = 0;
+ test_send_large(&opt, cgrp);
- /* Test start/end with end > data */
- txmsg_start = 0;
- txmsg_end = 1601;
- txmsg_start_push = 0;
- txmsg_end_push = 1601;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
+ txmsg_pass = 0;
+ txmsg_redir = 1;
+ txmsg_apply = 1024;
+ txmsg_cork = 0;
+ test_send_large(&opt, cgrp);
+}
- /* Test start/end with start > data */
- txmsg_start = 1601;
- txmsg_end = 1600;
- txmsg_start_push = 1601;
- txmsg_end_push = 1600;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
+static void test_txmsg_cork(int cgrp, char *map)
+{
+ struct sockmap_options opt = {.map = map};
- /* Test pop with start > data */
- txmsg_start_pop = 1601;
- txmsg_pop = 1;
- err = test_exec(cgrp, &opt);
- if (err)
- goto out;
+ txmsg_pass = 1;
+ txmsg_redir = 0;
+ txmsg_apply = 0;
+ txmsg_cork = 1;
+ test_send(&opt, cgrp);
- /* Test pop with pop range > data */
- txmsg_start_pop = 1599;
- txmsg_pop = 10;
- err = test_exec(cgrp, &opt);
-out:
- txmsg_start = 0;
- txmsg_end = 0;
- sched_yield();
- return err;
+ txmsg_pass = 1;
+ txmsg_redir = 0;
+ txmsg_apply = 1;
+ txmsg_cork = 1;
+ test_send(&opt, cgrp);
}
char *map_names[] = {
@@ -1663,16 +1623,59 @@ static int populate_progs(char *bpf_file)
return 0;
}
-static int __test_suite(int cg_fd, char *bpf_file)
+struct _test {
+ char *title;
+ void (*tester)(int cg_fd, char *map);
+};
+
+struct _test test[] = {
+ {"txmsg test passthrough", test_txmsg_pass},
+ {"txmsg test redirect", test_txmsg_redir},
+ {"txmsg test drop", test_txmsg_drop},
+ {"txmsg test ingress redirect", test_txmsg_ingress_redir},
+ {"txmsg test apply", test_txmsg_apply},
+ {"txmsg test cork", test_txmsg_cork},
+ {"txmsg test hanging corks", test_txmsg_cork_hangs},
+ {"txmsg test push_data", test_txmsg_push},
+ {"txmsg test pull-data", test_txmsg_pull},
+ {"txmsg test pop-data", test_txmsg_pop},
+ {"txmsg test push/pop data", test_txmsg_push_pop},
+};
+
+static int __test_selftests(int cg_fd, char *map)
{
- int err, cleanup = cg_fd;
+ int i, err;
- err = populate_progs(bpf_file);
+ err = populate_progs(map);
if (err < 0) {
fprintf(stderr, "ERROR: (%i) load bpf failed\n", err);
return err;
}
+ /* Tests basic commands and APIs */
+ for (i = 0; i < sizeof(test)/sizeof(struct _test); i++) {
+ struct _test t = test[i];
+
+ test_start_subtest(t.title, map);
+ t.tester(cg_fd, map);
+ test_end_subtest();
+ }
+
+ return err;
+}
+
+static void test_selftests_sockmap(int cg_fd)
+{
+ __test_selftests(cg_fd, BPF_SOCKMAP_FILENAME);
+}
+
+static void test_selftests_sockhash(int cg_fd)
+{
+ __test_selftests(cg_fd, BPF_SOCKHASH_FILENAME);
+}
+
+static int test_selftest(int cg_fd)
+{
if (cg_fd < 0) {
if (setup_cgroup_environment()) {
fprintf(stderr, "ERROR: cgroup env failed\n");
@@ -1693,43 +1696,12 @@ static int __test_suite(int cg_fd, char *bpf_file)
}
}
- /* Tests basic commands and APIs with range of iov values */
- txmsg_start = txmsg_end = txmsg_start_push = txmsg_end_push = 0;
- err = test_txmsg(cg_fd);
- if (err)
- goto out;
-
- /* Tests interesting combinations of APIs used together */
- err = test_mixed(cg_fd);
- if (err)
- goto out;
-
- /* Tests pull_data API using start/end API */
- err = test_start_end(cg_fd);
- if (err)
- goto out;
-
-out:
- printf("Summary: %i PASSED %i FAILED\n", passed, failed);
- if (cleanup < 0) {
- cleanup_cgroup_environment();
- close(cg_fd);
- }
- return err;
-}
-
-static int test_suite(int cg_fd)
-{
- int err;
-
- err = __test_suite(cg_fd, BPF_SOCKMAP_FILENAME);
- if (err)
- goto out;
- err = __test_suite(cg_fd, BPF_SOCKHASH_FILENAME);
-out:
- if (cg_fd > -1)
- close(cg_fd);
- return err;
+ test_selftests_sockmap(cg_fd);
+ test_selftests_sockhash(cg_fd);
+ cleanup_cgroup_environment();
+ close(cg_fd);
+ test_print_results();
+ return 0;
}
int main(int argc, char **argv)
@@ -1741,8 +1713,9 @@ int main(int argc, char **argv)
int test = PING_PONG;
bool cg_created = 0;
- if (argc < 2)
- return test_suite(-1);
+ if (argc < 2) {
+ return test_selftest(-1);
+ }
while ((opt = getopt_long(argc, argv, ":dhvc:r:i:l:t:p:q:",
long_options, &longindex)) != -1) {
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