10 #include <sys/socket.h>
11 #include <sys/select.h>
12 #include <sys/ioctl.h>
13 #include <arpa/inet.h>
16 #include <asm/types.h>
17 #include <linux/net_tstamp.h>
18 #include <linux/errqueue.h>
20 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
43 struct options sockopt;
44 struct tstamps expected;
53 static struct sof_flag sof_flags[] = {
54 #define SOF_FLAG(f) { f, #f }
55 SOF_FLAG(SOF_TIMESTAMPING_SOFTWARE),
56 SOF_FLAG(SOF_TIMESTAMPING_RX_SOFTWARE),
57 SOF_FLAG(SOF_TIMESTAMPING_RX_HARDWARE),
60 static struct socket_type socket_types[] = {
61 { "ip", SOCK_RAW, IPPROTO_EGP },
62 { "udp", SOCK_DGRAM, IPPROTO_UDP },
63 { "tcp", SOCK_STREAM, IPPROTO_TCP },
66 static struct test_case test_cases[] = {
73 { so_timestampns: 1 },
77 { so_timestamp: 1, so_timestampns: 1 },
81 { so_timestamping: SOF_TIMESTAMPING_RX_SOFTWARE },
85 /* Loopback device does not support hw timestamps. */
86 { so_timestamping: SOF_TIMESTAMPING_RX_HARDWARE },
90 { so_timestamping: SOF_TIMESTAMPING_SOFTWARE },
94 { so_timestamping: SOF_TIMESTAMPING_RX_SOFTWARE
95 | SOF_TIMESTAMPING_RX_HARDWARE },
99 { so_timestamping: SOF_TIMESTAMPING_SOFTWARE
100 | SOF_TIMESTAMPING_RX_SOFTWARE },
104 { so_timestamp: 1, so_timestamping: SOF_TIMESTAMPING_SOFTWARE
105 | SOF_TIMESTAMPING_RX_SOFTWARE },
106 { tstamp: true, swtstamp: true }
110 static struct option long_options[] = {
111 { "list_tests", no_argument, 0, 'l' },
112 { "test_num", required_argument, 0, 'n' },
113 { "op_size", required_argument, 0, 's' },
114 { "tcp", no_argument, 0, 't' },
115 { "udp", no_argument, 0, 'u' },
116 { "ip", no_argument, 0, 'i' },
119 static int next_port = 19999;
120 static int op_size = 10 * 1024;
122 void print_test_case(struct test_case *t)
126 printf("sockopts {");
127 if (t->sockopt.so_timestamp)
128 printf(" SO_TIMESTAMP ");
129 if (t->sockopt.so_timestampns)
130 printf(" SO_TIMESTAMPNS ");
131 if (t->sockopt.so_timestamping) {
132 printf(" SO_TIMESTAMPING: {");
133 for (f = 0; f < ARRAY_SIZE(sof_flags); f++)
134 if (t->sockopt.so_timestamping & sof_flags[f].mask)
135 printf(" %s |", sof_flags[f].name);
138 printf("} expected cmsgs: {");
139 if (t->expected.tstamp)
140 printf(" SCM_TIMESTAMP ");
141 if (t->expected.tstampns)
142 printf(" SCM_TIMESTAMPNS ");
143 if (t->expected.swtstamp || t->expected.hwtstamp) {
144 printf(" SCM_TIMESTAMPING {");
145 if (t->expected.swtstamp)
147 if (t->expected.swtstamp && t->expected.hwtstamp)
149 if (t->expected.hwtstamp)
156 void do_send(int src)
159 char *buf = malloc(op_size);
161 memset(buf, 'z', op_size);
162 r = write(src, buf, op_size);
164 error(1, errno, "Failed to sendmsg");
169 bool do_recv(int rcv, int read_size, struct tstamps expected)
171 const int CMSG_SIZE = 1024;
173 struct scm_timestamping *ts;
174 struct tstamps actual = {};
175 char cmsg_buf[CMSG_SIZE];
176 struct iovec recv_iov;
177 struct cmsghdr *cmsg;
183 memset(&hdr, 0, sizeof(hdr));
184 hdr.msg_iov = &recv_iov;
186 recv_iov.iov_base = malloc(read_size);
187 recv_iov.iov_len = read_size;
189 hdr.msg_control = cmsg_buf;
190 hdr.msg_controllen = sizeof(cmsg_buf);
192 r = recvmsg(rcv, &hdr, flags);
194 error(1, errno, "Failed to recvmsg");
196 error(1, 0, "Only received %d bytes of payload.", r);
198 if (hdr.msg_flags & (MSG_TRUNC | MSG_CTRUNC))
199 error(1, 0, "Message was truncated.");
201 for (cmsg = CMSG_FIRSTHDR(&hdr); cmsg != NULL;
202 cmsg = CMSG_NXTHDR(&hdr, cmsg)) {
203 if (cmsg->cmsg_level != SOL_SOCKET)
204 error(1, 0, "Unexpected cmsg_level %d",
206 switch (cmsg->cmsg_type) {
208 actual.tstamp = true;
210 case SCM_TIMESTAMPNS:
211 actual.tstampns = true;
213 case SCM_TIMESTAMPING:
214 ts = (struct scm_timestamping *)CMSG_DATA(cmsg);
215 actual.swtstamp = !!ts->ts[0].tv_sec;
216 if (ts->ts[1].tv_sec != 0)
217 error(0, 0, "ts[1] should not be set.");
218 actual.hwtstamp = !!ts->ts[2].tv_sec;
221 error(1, 0, "Unexpected cmsg_type %d", cmsg->cmsg_type);
225 #define VALIDATE(field) \
227 if (expected.field != actual.field) { \
228 if (expected.field) \
229 error(0, 0, "Expected " #field " to be set."); \
232 "Expected " #field " to not be set."); \
243 free(recv_iov.iov_base);
248 void config_so_flags(int rcv, struct options o)
252 if (setsockopt(rcv, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
253 error(1, errno, "Failed to enable SO_REUSEADDR");
255 if (o.so_timestamp &&
256 setsockopt(rcv, SOL_SOCKET, SO_TIMESTAMP,
257 &o.so_timestamp, sizeof(o.so_timestamp)) < 0)
258 error(1, errno, "Failed to enable SO_TIMESTAMP");
260 if (o.so_timestampns &&
261 setsockopt(rcv, SOL_SOCKET, SO_TIMESTAMPNS,
262 &o.so_timestampns, sizeof(o.so_timestampns)) < 0)
263 error(1, errno, "Failed to enable SO_TIMESTAMPNS");
265 if (o.so_timestamping &&
266 setsockopt(rcv, SOL_SOCKET, SO_TIMESTAMPING,
267 &o.so_timestamping, sizeof(o.so_timestamping)) < 0)
268 error(1, errno, "Failed to set SO_TIMESTAMPING");
271 bool run_test_case(struct socket_type s, struct test_case t)
273 int port = (s.type == SOCK_RAW) ? 0 : next_port++;
274 int read_size = op_size;
275 struct sockaddr_in addr;
279 src = socket(AF_INET, s.type, s.protocol);
281 error(1, errno, "Failed to open src socket");
283 dst = socket(AF_INET, s.type, s.protocol);
285 error(1, errno, "Failed to open dst socket");
287 memset(&addr, 0, sizeof(addr));
288 addr.sin_family = AF_INET;
289 addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
290 addr.sin_port = htons(port);
292 if (bind(dst, (struct sockaddr *)&addr, sizeof(addr)) < 0)
293 error(1, errno, "Failed to bind to port %d", port);
295 if (s.type == SOCK_STREAM && (listen(dst, 1) < 0))
296 error(1, errno, "Failed to listen");
298 if (connect(src, (struct sockaddr *)&addr, sizeof(addr)) < 0)
299 error(1, errno, "Failed to connect");
301 if (s.type == SOCK_STREAM) {
302 rcv = accept(dst, NULL, NULL);
304 error(1, errno, "Failed to accept");
310 config_so_flags(rcv, t.sockopt);
311 usleep(20000); /* setsockopt for SO_TIMESTAMPING is asynchronous */
314 if (s.type == SOCK_RAW)
315 read_size += 20; /* for IP header */
316 failed = do_recv(rcv, read_size, t.expected);
324 int main(int argc, char **argv)
326 bool all_protocols = true;
327 bool all_tests = true;
333 while ((opt = getopt_long(argc, argv, "", long_options,
334 &arg_index)) != -1) {
337 for (t = 0; t < ARRAY_SIZE(test_cases); t++) {
339 print_test_case(&test_cases[t]);
344 if (t >= ARRAY_SIZE(test_cases))
345 error(1, 0, "Invalid test case: %d", t);
347 test_cases[t].enabled = true;
350 op_size = atoi(optarg);
353 all_protocols = false;
354 socket_types[2].enabled = true;
357 all_protocols = false;
358 socket_types[1].enabled = true;
361 all_protocols = false;
362 socket_types[0].enabled = true;
365 error(1, 0, "Failed to parse parameters.");
369 for (s = 0; s < ARRAY_SIZE(socket_types); s++) {
370 if (!all_protocols && !socket_types[s].enabled)
373 printf("Testing %s...\n", socket_types[s].friendly_name);
374 for (t = 0; t < ARRAY_SIZE(test_cases); t++) {
375 if (!all_tests && !test_cases[t].enabled)
378 printf("Starting testcase %d...\n", t);
379 if (run_test_case(socket_types[s], test_cases[t])) {
381 printf("FAILURE in test case ");
382 print_test_case(&test_cases[t]);