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Diffstat (limited to 'tools/testing/selftests/net/nettest.c')
-rw-r--r--tools/testing/selftests/net/nettest.c128
1 files changed, 117 insertions, 11 deletions
diff --git a/tools/testing/selftests/net/nettest.c b/tools/testing/selftests/net/nettest.c
index d9a6fd2cd9d3..1f5227f3d64d 100644
--- a/tools/testing/selftests/net/nettest.c
+++ b/tools/testing/selftests/net/nettest.c
@@ -76,7 +76,9 @@ struct sock_args {
has_grp:1,
has_expected_laddr:1,
has_expected_raddr:1,
- bind_test_only:1;
+ bind_test_only:1,
+ client_dontroute:1,
+ server_dontroute:1;
unsigned short port;
@@ -87,6 +89,7 @@ struct sock_args {
int use_setsockopt;
int use_freebind;
int use_cmsg;
+ uint8_t dsfield;
const char *dev;
const char *server_dev;
int ifindex;
@@ -127,6 +130,9 @@ struct sock_args {
/* ESP in UDP encap test */
int use_xfrm;
+
+ /* use send() and connect() instead of sendto */
+ int datagram_connect;
};
static int server_mode;
@@ -379,7 +385,7 @@ static int get_bind_to_device(int sd, char *name, size_t len)
name[0] = '\0';
rc = getsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, name, &optlen);
if (rc < 0)
- log_err_errno("setsockopt(SO_BINDTODEVICE)");
+ log_err_errno("getsockopt(SO_BINDTODEVICE)");
return rc;
}
@@ -529,7 +535,7 @@ static int set_freebind(int sd, int version)
break;
case AF_INET6:
if (setsockopt(sd, SOL_IPV6, IPV6_FREEBIND, &one, sizeof(one))) {
- log_err_errno("setsockopt(IPV6_FREEBIND");
+ log_err_errno("setsockopt(IPV6_FREEBIND)");
rc = -1;
}
break;
@@ -577,6 +583,48 @@ static int set_reuseaddr(int sd)
return rc;
}
+static int set_dsfield(int sd, int version, int dsfield)
+{
+ if (!dsfield)
+ return 0;
+
+ switch (version) {
+ case AF_INET:
+ if (setsockopt(sd, SOL_IP, IP_TOS, &dsfield,
+ sizeof(dsfield)) < 0) {
+ log_err_errno("setsockopt(IP_TOS)");
+ return -1;
+ }
+ break;
+
+ case AF_INET6:
+ if (setsockopt(sd, SOL_IPV6, IPV6_TCLASS, &dsfield,
+ sizeof(dsfield)) < 0) {
+ log_err_errno("setsockopt(IPV6_TCLASS)");
+ return -1;
+ }
+ break;
+
+ default:
+ log_error("Invalid address family\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int set_dontroute(int sd)
+{
+ unsigned int one = 1;
+
+ if (setsockopt(sd, SOL_SOCKET, SO_DONTROUTE, &one, sizeof(one)) < 0) {
+ log_err_errno("setsockopt(SO_DONTROUTE)");
+ return -1;
+ }
+
+ return 0;
+}
+
static int str_to_uint(const char *str, int min, int max, unsigned int *value)
{
int number;
@@ -764,7 +812,7 @@ static int convert_addr(struct sock_args *args, const char *_str,
sep++;
if (str_to_uint(sep, 1, pfx_len_max,
&args->prefix_len) != 0) {
- fprintf(stderr, "Invalid port\n");
+ fprintf(stderr, "Invalid prefix length\n");
return 1;
}
} else {
@@ -979,6 +1027,11 @@ static int send_msg(int sd, void *addr, socklen_t alen, struct sock_args *args)
log_err_errno("write failed sending msg to peer");
return 1;
}
+ } else if (args->datagram_connect) {
+ if (send(sd, msg, msglen, 0) < 0) {
+ log_err_errno("send failed sending msg to peer");
+ return 1;
+ }
} else if (args->ifindex && args->use_cmsg) {
if (send_msg_cmsg(sd, addr, alen, args->ifindex, args->version))
return 1;
@@ -1219,7 +1272,7 @@ static int msg_loop(int client, int sd, void *addr, socklen_t alen,
}
}
- nfds = interactive ? MAX(fileno(stdin), sd) + 1 : sd + 1;
+ nfds = interactive ? MAX(fileno(stdin), sd) + 1 : sd + 1;
while (1) {
FD_ZERO(&rfds);
FD_SET(sd, &rfds);
@@ -1309,6 +1362,17 @@ static int msock_init(struct sock_args *args, int server)
(char *)&one, sizeof(one)) < 0)
log_err_errno("Setting SO_BROADCAST error");
+ if (set_dsfield(sd, AF_INET, args->dsfield) != 0)
+ goto out_err;
+
+ if (server) {
+ if (args->server_dontroute && set_dontroute(sd) != 0)
+ goto out_err;
+ } else {
+ if (args->client_dontroute && set_dontroute(sd) != 0)
+ goto out_err;
+ }
+
if (args->dev && bind_to_device(sd, args->dev) != 0)
goto out_err;
else if (args->use_setsockopt &&
@@ -1428,7 +1492,7 @@ static int lsock_init(struct sock_args *args)
sd = socket(args->version, args->type, args->protocol);
if (sd < 0) {
log_err_errno("Error opening socket");
- return -1;
+ return -1;
}
if (set_reuseaddr(sd) != 0)
@@ -1437,6 +1501,12 @@ static int lsock_init(struct sock_args *args)
if (set_reuseport(sd) != 0)
goto err;
+ if (set_dsfield(sd, args->version, args->dsfield) != 0)
+ goto err;
+
+ if (args->server_dontroute && set_dontroute(sd) != 0)
+ goto err;
+
if (args->dev && bind_to_device(sd, args->dev) != 0)
goto err;
else if (args->use_setsockopt &&
@@ -1650,6 +1720,12 @@ static int connectsock(void *addr, socklen_t alen, struct sock_args *args)
if (set_reuseport(sd) != 0)
goto err;
+ if (set_dsfield(sd, args->version, args->dsfield) != 0)
+ goto err;
+
+ if (args->client_dontroute && set_dontroute(sd) != 0)
+ goto err;
+
if (args->dev && bind_to_device(sd, args->dev) != 0)
goto err;
else if (args->use_setsockopt &&
@@ -1659,7 +1735,7 @@ static int connectsock(void *addr, socklen_t alen, struct sock_args *args)
if (args->has_local_ip && bind_socket(sd, args))
goto err;
- if (args->type != SOCK_STREAM)
+ if (args->type != SOCK_STREAM && !args->datagram_connect)
goto out;
if (args->password && tcp_md5sig(sd, addr, alen, args))
@@ -1788,8 +1864,9 @@ static char *random_msg(int len)
n += i;
len -= i;
}
- i = snprintf(m + n, olen - n, "%.*s", len,
- "abcdefghijklmnopqrstuvwxyz");
+
+ snprintf(m + n, olen - n, "%.*s", len,
+ "abcdefghijklmnopqrstuvwxyz");
return m;
}
@@ -1835,7 +1912,7 @@ static int ipc_parent(int cpid, int fd, struct sock_args *args)
* waiting to be told when to continue
*/
if (read(fd, &buf, sizeof(buf)) <= 0) {
- log_err_errno("Failed to read IPC status from status");
+ log_err_errno("Failed to read IPC status from pipe");
return 1;
}
if (!buf) {
@@ -1854,13 +1931,17 @@ static int ipc_parent(int cpid, int fd, struct sock_args *args)
return client_status;
}
-#define GETOPT_STR "sr:l:c:p:t:g:P:DRn:M:X:m:d:I:BN:O:SCi6xL:0:1:2:3:Fbqf"
+#define GETOPT_STR "sr:l:c:Q:p:t:g:P:DRn:M:X:m:d:I:BN:O:SUCi6xL:0:1:2:3:Fbqf"
#define OPT_FORCE_BIND_KEY_IFINDEX 1001
#define OPT_NO_BIND_KEY_IFINDEX 1002
+#define OPT_CLIENT_DONTROUTE 1003
+#define OPT_SERVER_DONTROUTE 1004
static struct option long_opts[] = {
{"force-bind-key-ifindex", 0, 0, OPT_FORCE_BIND_KEY_IFINDEX},
{"no-bind-key-ifindex", 0, 0, OPT_NO_BIND_KEY_IFINDEX},
+ {"client-dontroute", 0, 0, OPT_CLIENT_DONTROUTE},
+ {"server-dontroute", 0, 0, OPT_SERVER_DONTROUTE},
{0, 0, 0, 0}
};
@@ -1885,12 +1966,15 @@ static void print_usage(char *prog)
" -D|R datagram (D) / raw (R) socket (default stream)\n"
" -l addr local address to bind to in server mode\n"
" -c addr local address to bind to in client mode\n"
+ " -Q dsfield DS Field value of the socket (the IP_TOS or\n"
+ " IPV6_TCLASS socket option)\n"
" -x configure XFRM policy on socket\n"
"\n"
" -d dev bind socket to given device name\n"
" -I dev bind socket to given device name - server mode\n"
" -S use setsockopt (IP_UNICAST_IF or IP_MULTICAST_IF)\n"
" to set device binding\n"
+ " -U Use connect() and send() for datagram sockets\n"
" -f bind socket with the IP[V6]_FREEBIND option\n"
" -C use cmsg and IP_PKTINFO to specify device binding\n"
"\n"
@@ -1903,6 +1987,12 @@ static void print_usage(char *prog)
" --no-bind-key-ifindex: Force TCP_MD5SIG_FLAG_IFINDEX off\n"
" --force-bind-key-ifindex: Force TCP_MD5SIG_FLAG_IFINDEX on\n"
" (default: only if -I is passed)\n"
+ " --client-dontroute: don't use gateways for client socket: send\n"
+ " packets only if destination is on link (see\n"
+ " SO_DONTROUTE in socket(7))\n"
+ " --server-dontroute: don't use gateways for server socket: send\n"
+ " packets only if destination is on link (see\n"
+ " SO_DONTROUTE in socket(7))\n"
"\n"
" -g grp multicast group (e.g., 239.1.1.1)\n"
" -i interactive mode (default is echo and terminate)\n"
@@ -1962,6 +2052,13 @@ int main(int argc, char *argv[])
args.has_local_ip = 1;
args.client_local_addr_str = optarg;
break;
+ case 'Q':
+ if (str_to_uint(optarg, 0, 255, &tmp) != 0) {
+ fprintf(stderr, "Invalid DS Field\n");
+ return 1;
+ }
+ args.dsfield = tmp;
+ break;
case 'p':
if (str_to_uint(optarg, 1, 65535, &tmp) != 0) {
fprintf(stderr, "Invalid port\n");
@@ -2018,6 +2115,12 @@ int main(int argc, char *argv[])
case OPT_NO_BIND_KEY_IFINDEX:
args.bind_key_ifindex = -1;
break;
+ case OPT_CLIENT_DONTROUTE:
+ args.client_dontroute = 1;
+ break;
+ case OPT_SERVER_DONTROUTE:
+ args.server_dontroute = 1;
+ break;
case 'X':
args.client_pw = optarg;
break;
@@ -2074,6 +2177,9 @@ int main(int argc, char *argv[])
case 'x':
args.use_xfrm = 1;
break;
+ case 'U':
+ args.datagram_connect = 1;
+ break;
default:
print_usage(argv[0]);
return 1;
generated by cgit (git 2.34.1) at 2025-12-25 13:35:39 +0000