" probe TARGET probe whether TARGET is up\n"
" ping TARGET [N] latency of N-byte echos\n"
" benchmark TARGET N COUNT bandwidth of COUNT N-byte echos\n"
- "where SWITCH or TARGET is an active OpenFlow connection method.\n",
+ "SWITCH or TARGET is an active OpenFlow connection method.\n"
+ "\nOther commands:\n"
+ " ofp-parse FILE print messages read from FILE\n",
program_name, program_name);
vconn_usage(true, false, false);
daemon_usage();
vconn_close(vconn);
}
+static void
+ofctl_ofp_parse(int argc OVS_UNUSED, char *argv[])
+{
+ const char *filename = argv[1];
+ struct ofpbuf b;
+ FILE *file;
+
+ file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
+ if (file == NULL) {
+ ovs_fatal(errno, "%s: open", filename);
+ }
+
+ ofpbuf_init(&b, 65536);
+ for (;;) {
+ struct ofp_header *oh;
+ size_t length, tail_len;
+ void *tail;
+ size_t n;
+
+ ofpbuf_clear(&b);
+ oh = ofpbuf_put_uninit(&b, sizeof *oh);
+ n = fread(oh, 1, sizeof *oh, file);
+ if (n == 0) {
+ break;
+ } else if (n < sizeof *oh) {
+ ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
+ }
+
+ length = ntohs(oh->length);
+ if (length < sizeof *oh) {
+ ovs_fatal(0, "%s: %zu-byte message is too short for OpenFlow",
+ filename, length);
+ }
+
+ tail_len = length - sizeof *oh;
+ tail = ofpbuf_put_uninit(&b, tail_len);
+ n = fread(tail, 1, tail_len, file);
+ if (n < tail_len) {
+ ovs_fatal(0, "%s: unexpected end of file mid-message", filename);
+ }
+
+ ofp_print(stdout, b.data, b.size, verbosity + 2);
+ }
+ ofpbuf_uninit(&b);
+
+ if (file != stdin) {
+ fclose(file);
+ }
+}
+
static void
ofctl_ping(int argc, char *argv[])
{
{ "mod-port", 3, 3, ofctl_mod_port },
{ "get-frags", 1, 1, ofctl_get_frags },
{ "set-frags", 2, 2, ofctl_set_frags },
+ { "ofp-parse", 1, 1, ofctl_ofp_parse },
{ "probe", 1, 1, ofctl_probe },
{ "ping", 1, 2, ofctl_ping },
{ "benchmark", 3, 3, ofctl_benchmark },