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Diffstat (limited to 'tools/testing/selftests/bpf/test_sockmap.c')
-rw-r--r--tools/testing/selftests/bpf/test_sockmap.c238
1 files changed, 178 insertions, 60 deletions
diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c
index 10a5fa83c75a..622ade0a0957 100644
--- a/tools/testing/selftests/bpf/test_sockmap.c
+++ b/tools/testing/selftests/bpf/test_sockmap.c
@@ -28,6 +28,7 @@
#include <linux/sock_diag.h>
#include <linux/bpf.h>
#include <linux/if_link.h>
+#include <linux/tls.h>
#include <assert.h>
#include <libgen.h>
@@ -43,6 +44,13 @@
int running;
static void running_handler(int a);
+#ifndef TCP_ULP
+# define TCP_ULP 31
+#endif
+#ifndef SOL_TLS
+# define SOL_TLS 282
+#endif
+
/* randomly selected ports for testing on lo */
#define S1_PORT 10000
#define S2_PORT 10001
@@ -69,9 +77,12 @@ int txmsg_apply;
int txmsg_cork;
int txmsg_start;
int txmsg_end;
+int txmsg_start_push;
+int txmsg_end_push;
int txmsg_ingress;
int txmsg_skb;
int ktls;
+int peek_flag;
static const struct option long_options[] = {
{"help", no_argument, NULL, 'h' },
@@ -91,9 +102,12 @@ static const struct option long_options[] = {
{"txmsg_cork", required_argument, NULL, 'k'},
{"txmsg_start", required_argument, NULL, 's'},
{"txmsg_end", required_argument, NULL, 'e'},
+ {"txmsg_start_push", required_argument, NULL, 'p'},
+ {"txmsg_end_push", required_argument, NULL, 'q'},
{"txmsg_ingress", no_argument, &txmsg_ingress, 1 },
{"txmsg_skb", no_argument, &txmsg_skb, 1 },
{"ktls", no_argument, &ktls, 1 },
+ {"peek", no_argument, &peek_flag, 1 },
{0, 0, NULL, 0 }
};
@@ -114,11 +128,6 @@ static void usage(char *argv[])
printf("\n");
}
-#define TCP_ULP 31
-#define TLS_TX 1
-#define TLS_RX 2
-#include <linux/tls.h>
-
char *sock_to_string(int s)
{
if (s == c1)
@@ -349,33 +358,40 @@ static int msg_loop_sendpage(int fd, int iov_length, int cnt,
return 0;
}
-static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
- struct msg_stats *s, bool tx,
- struct sockmap_options *opt)
+static void msg_free_iov(struct msghdr *msg)
{
- struct msghdr msg = {0};
- int err, i, flags = MSG_NOSIGNAL;
+ int i;
+
+ for (i = 0; i < msg->msg_iovlen; i++)
+ free(msg->msg_iov[i].iov_base);
+ free(msg->msg_iov);
+ msg->msg_iov = NULL;
+ msg->msg_iovlen = 0;
+}
+
+static int msg_alloc_iov(struct msghdr *msg,
+ int iov_count, int iov_length,
+ bool data, bool xmit)
+{
+ unsigned char k = 0;
struct iovec *iov;
- unsigned char k;
- bool data_test = opt->data_test;
- bool drop = opt->drop_expected;
+ int i;
iov = calloc(iov_count, sizeof(struct iovec));
if (!iov)
return errno;
- k = 0;
for (i = 0; i < iov_count; i++) {
unsigned char *d = calloc(iov_length, sizeof(char));
if (!d) {
fprintf(stderr, "iov_count %i/%i OOM\n", i, iov_count);
- goto out_errno;
+ goto unwind_iov;
}
iov[i].iov_base = d;
iov[i].iov_len = iov_length;
- if (data_test && tx) {
+ if (data && xmit) {
int j;
for (j = 0; j < iov_length; j++)
@@ -383,9 +399,60 @@ static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
}
}
- msg.msg_iov = iov;
- msg.msg_iovlen = iov_count;
- k = 0;
+ msg->msg_iov = iov;
+ msg->msg_iovlen = iov_count;
+
+ return 0;
+unwind_iov:
+ for (i--; i >= 0 ; i--)
+ free(msg->msg_iov[i].iov_base);
+ return -ENOMEM;
+}
+
+static int msg_verify_data(struct msghdr *msg, int size, int chunk_sz)
+{
+ int i, j, bytes_cnt = 0;
+ unsigned char k = 0;
+
+ for (i = 0; i < msg->msg_iovlen; i++) {
+ unsigned char *d = msg->msg_iov[i].iov_base;
+
+ for (j = 0;
+ j < msg->msg_iov[i].iov_len && size; j++) {
+ if (d[j] != k++) {
+ fprintf(stderr,
+ "detected data corruption @iov[%i]:%i %02x != %02x, %02x ?= %02x\n",
+ i, j, d[j], k - 1, d[j+1], k);
+ return -EIO;
+ }
+ bytes_cnt++;
+ if (bytes_cnt == chunk_sz) {
+ k = 0;
+ bytes_cnt = 0;
+ }
+ size--;
+ }
+ }
+ return 0;
+}
+
+static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
+ struct msg_stats *s, bool tx,
+ struct sockmap_options *opt)
+{
+ struct msghdr msg = {0}, msg_peek = {0};
+ int err, i, flags = MSG_NOSIGNAL;
+ bool drop = opt->drop_expected;
+ bool data = opt->data_test;
+
+ err = msg_alloc_iov(&msg, iov_count, iov_length, data, tx);
+ if (err)
+ goto out_errno;
+ if (peek_flag) {
+ err = msg_alloc_iov(&msg_peek, iov_count, iov_length, data, tx);
+ if (err)
+ goto out_errno;
+ }
if (tx) {
clock_gettime(CLOCK_MONOTONIC, &s->start);
@@ -405,19 +472,12 @@ static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
}
clock_gettime(CLOCK_MONOTONIC, &s->end);
} else {
- int slct, recv, max_fd = fd;
+ int slct, recvp = 0, recv, max_fd = fd;
int fd_flags = O_NONBLOCK;
struct timeval timeout;
float total_bytes;
- int bytes_cnt = 0;
- int chunk_sz;
fd_set w;
- if (opt->sendpage)
- chunk_sz = iov_length * cnt;
- else
- chunk_sz = iov_length * iov_count;
-
fcntl(fd, fd_flags);
total_bytes = (float)iov_count * (float)iov_length * (float)cnt;
err = clock_gettime(CLOCK_MONOTONIC, &s->start);
@@ -449,6 +509,19 @@ static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
goto out_errno;
}
+ errno = 0;
+ if (peek_flag) {
+ flags |= MSG_PEEK;
+ recvp = recvmsg(fd, &msg_peek, flags);
+ if (recvp < 0) {
+ if (errno != EWOULDBLOCK) {
+ clock_gettime(CLOCK_MONOTONIC, &s->end);
+ goto out_errno;
+ }
+ }
+ flags = 0;
+ }
+
recv = recvmsg(fd, &msg, flags);
if (recv < 0) {
if (errno != EWOULDBLOCK) {
@@ -460,27 +533,23 @@ static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
s->bytes_recvd += recv;
- if (data_test) {
- int j;
-
- for (i = 0; i < msg.msg_iovlen; i++) {
- unsigned char *d = iov[i].iov_base;
-
- for (j = 0;
- j < iov[i].iov_len && recv; j++) {
- if (d[j] != k++) {
- errno = -EIO;
- fprintf(stderr,
- "detected data corruption @iov[%i]:%i %02x != %02x, %02x ?= %02x\n",
- i, j, d[j], k - 1, d[j+1], k);
- goto out_errno;
- }
- bytes_cnt++;
- if (bytes_cnt == chunk_sz) {
- k = 0;
- bytes_cnt = 0;
- }
- recv--;
+ if (data) {
+ int chunk_sz = opt->sendpage ?
+ iov_length * cnt :
+ iov_length * iov_count;
+
+ errno = msg_verify_data(&msg, recv, chunk_sz);
+ if (errno) {
+ perror("data verify msg failed\n");
+ goto out_errno;
+ }
+ if (recvp) {
+ errno = msg_verify_data(&msg_peek,
+ recvp,
+ chunk_sz);
+ if (errno) {
+ perror("data verify msg_peek failed\n");
+ goto out_errno;
}
}
}
@@ -488,14 +557,12 @@ static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
clock_gettime(CLOCK_MONOTONIC, &s->end);
}
- for (i = 0; i < iov_count; i++)
- free(iov[i].iov_base);
- free(iov);
- return 0;
+ msg_free_iov(&msg);
+ msg_free_iov(&msg_peek);
+ return err;
out_errno:
- for (i = 0; i < iov_count; i++)
- free(iov[i].iov_base);
- free(iov);
+ msg_free_iov(&msg);
+ msg_free_iov(&msg_peek);
return errno;
}
@@ -562,9 +629,10 @@ static int sendmsg_test(struct sockmap_options *opt)
}
if (opt->verbose)
fprintf(stdout,
- "rx_sendmsg: TX: %zuB %fB/s %fGB/s RX: %zuB %fB/s %fGB/s\n",
+ "rx_sendmsg: TX: %zuB %fB/s %fGB/s RX: %zuB %fB/s %fGB/s %s\n",
s.bytes_sent, sent_Bps, sent_Bps/giga,
- s.bytes_recvd, recvd_Bps, recvd_Bps/giga);
+ s.bytes_recvd, recvd_Bps, recvd_Bps/giga,
+ peek_flag ? "(peek_msg)" : "");
if (err && txmsg_cork)
err = 0;
exit(err ? 1 : 0);
@@ -839,6 +907,30 @@ run:
}
}
+ if (txmsg_start_push) {
+ i = 2;
+ err = bpf_map_update_elem(map_fd[5],
+ &i, &txmsg_start_push, BPF_ANY);
+ if (err) {
+ fprintf(stderr,
+ "ERROR: bpf_map_update_elem (txmsg_start_push): %d (%s)\n",
+ err, strerror(errno));
+ goto out;
+ }
+ }
+
+ if (txmsg_end_push) {
+ i = 3;
+ err = bpf_map_update_elem(map_fd[5],
+ &i, &txmsg_end_push, BPF_ANY);
+ if (err) {
+ fprintf(stderr,
+ "ERROR: bpf_map_update_elem %i@%i (txmsg_end_push): %d (%s)\n",
+ txmsg_end_push, i, err, strerror(errno));
+ goto out;
+ }
+ }
+
if (txmsg_ingress) {
int in = BPF_F_INGRESS;
@@ -996,6 +1088,8 @@ static void test_options(char *options)
strncat(options, "skb,", OPTSTRING);
if (ktls)
strncat(options, "ktls,", OPTSTRING);
+ if (peek_flag)
+ strncat(options, "peek,", OPTSTRING);
}
static int __test_exec(int cgrp, int test, struct sockmap_options *opt)
@@ -1169,6 +1263,8 @@ static int test_mixed(int cgrp)
txmsg_pass = txmsg_noisy = txmsg_redir_noisy = txmsg_drop = 0;
txmsg_apply = txmsg_cork = 0;
txmsg_start = txmsg_end = 0;
+ txmsg_start_push = txmsg_end_push = 0;
+
/* Test small and large iov_count values with pass/redir/apply/cork */
txmsg_pass = 1;
txmsg_redir = 0;
@@ -1285,6 +1381,8 @@ static int test_start_end(int cgrp)
/* Test basic start/end with lots of iov_count and iov_lengths */
txmsg_start = 1;
txmsg_end = 2;
+ txmsg_start_push = 1;
+ txmsg_end_push = 2;
err = test_txmsg(cgrp);
if (err)
goto out;
@@ -1298,6 +1396,8 @@ static int test_start_end(int cgrp)
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;
@@ -1307,6 +1407,8 @@ static int test_start_end(int cgrp)
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;
@@ -1315,6 +1417,8 @@ static int test_start_end(int 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;
@@ -1322,6 +1426,8 @@ static int test_start_end(int cgrp)
/* 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;
@@ -1329,6 +1435,8 @@ static int test_start_end(int 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;
@@ -1336,6 +1444,8 @@ static int test_start_end(int 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;
@@ -1343,6 +1453,8 @@ static int test_start_end(int 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);
out:
@@ -1358,7 +1470,7 @@ char *map_names[] = {
"sock_map_redir",
"sock_apply_bytes",
"sock_cork_bytes",
- "sock_pull_bytes",
+ "sock_bytes",
"sock_redir_flags",
"sock_skb_opts",
};
@@ -1465,7 +1577,7 @@ static int __test_suite(int cg_fd, char *bpf_file)
}
/* Tests basic commands and APIs with range of iov values */
- txmsg_start = txmsg_end = 0;
+ txmsg_start = txmsg_end = txmsg_start_push = txmsg_end_push = 0;
err = test_txmsg(cg_fd);
if (err)
goto out;
@@ -1514,7 +1626,7 @@ int main(int argc, char **argv)
if (argc < 2)
return test_suite(-1);
- while ((opt = getopt_long(argc, argv, ":dhvc:r:i:l:t:",
+ while ((opt = getopt_long(argc, argv, ":dhvc:r:i:l:t:p:q:",
long_options, &longindex)) != -1) {
switch (opt) {
case 's':
@@ -1523,6 +1635,12 @@ int main(int argc, char **argv)
case 'e':
txmsg_end = atoi(optarg);
break;
+ case 'p':
+ txmsg_start_push = atoi(optarg);
+ break;
+ case 'q':
+ txmsg_end_push = atoi(optarg);
+ break;
case 'a':
txmsg_apply = atoi(optarg);
break;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.