30 struct lan *ports[RSTP_MAX_PORTS];
35 struct bpdu rxq[RXQ_SIZE];
36 int rxq_head, rxq_tail;
40 struct bridge *bridge;
48 struct lan_conn conns[16];
53 struct bridge *bridges[16];
59 static const char *file_name;
60 static int line_number;
61 static char line[128];
62 static char *pos, *token;
63 static int n_warnings;
65 static struct test_case *
68 struct test_case *tc = xmalloc(sizeof *tc);
75 send_bpdu(struct ofpbuf *pkt, int port_no, void *b_)
77 struct bridge *b = b_;
80 assert(port_no < b->n_ports);
81 lan = b->ports[port_no];
83 const void *data = ofpbuf_l3(pkt);
84 size_t size = (char *) ofpbuf_tail(pkt) - (char *) data;
87 for (i = 0; i < lan->n_conns; i++) {
88 struct lan_conn *conn = &lan->conns[i];
89 if (conn->bridge != b || conn->port_no != port_no) {
90 struct bridge *dst = conn->bridge;
91 struct bpdu *bpdu = &dst->rxq[dst->rxq_head++ % RXQ_SIZE];
92 assert(dst->rxq_head - dst->rxq_tail <= RXQ_SIZE);
93 bpdu->data = xmemdup(data, size);
95 bpdu->port_no = conn->port_no;
102 static struct bridge *
103 new_bridge(struct test_case *tc, int id)
105 struct bridge *b = xmalloc(sizeof *b);
112 snprintf(name, sizeof name, "rstp%x", id);
113 b->rstp = rstp_create(name, id, send_bpdu, b);
114 for (i = 1; i < MAX_PORTS; i++) {
115 p = rstp_add_port(b->rstp);
116 rstp_port_set_aux(p, b);
117 rstp_port_set_state(p, RSTP_DISABLED);
118 rstp_port_set_mac_operational(p, true);
121 assert(tc->n_bridges < ARRAY_SIZE(tc->bridges));
123 b->n_active_ports = 1;
124 b->rxq_head = b->rxq_tail = 0;
125 tc->bridges[tc->n_bridges++] = b;
130 new_lan(struct test_case *tc, const char *name)
132 struct lan *lan = xmalloc(sizeof *lan);
134 lan->name = xstrdup(name);
136 assert(tc->n_lans < ARRAY_SIZE(tc->lans));
137 tc->lans[tc->n_lans++] = lan;
142 reconnect_port(struct bridge *b, int port_no, struct lan *new_lan)
147 assert(port_no < b->n_ports);
148 old_lan = b->ports[port_no];
149 if (old_lan == new_lan) {
153 /* Disconnect from old_lan. */
155 for (j = 0; j < old_lan->n_conns; j++) {
156 struct lan_conn *c = &old_lan->conns[j];
157 if (c->bridge == b && c->port_no == port_no) {
158 memmove(c, c + 1, sizeof *c * (old_lan->n_conns - j - 1));
165 /* Connect to new_lan. */
166 b->ports[port_no] = new_lan;
168 int conn_no = new_lan->n_conns++;
169 assert(conn_no < ARRAY_SIZE(new_lan->conns));
170 new_lan->conns[conn_no].bridge = b;
171 new_lan->conns[conn_no].port_no = port_no;
176 new_port(struct bridge *b, struct lan *lan, uint32_t path_cost)
178 int port_no = b->n_ports++;
179 struct rstp_port *p = rstp_get_port(b->rstp, port_no);
181 assert(port_no < ARRAY_SIZE(b->ports));
182 b->ports[port_no] = NULL;
184 reinitialize_port(p);
185 rstp_port_set_path_cost(p, path_cost);
186 rstp_port_set_state(p, RSTP_DISCARDING);
187 rstp_port_set_mac_operational(p, true);
188 reconnect_port(b, port_no, lan);
192 dump(struct test_case *tc)
196 for (i = 0; i < tc->n_bridges; i++) {
197 struct bridge *b = tc->bridges[i];
198 struct rstp *rstp = b->rstp;
201 printf("%s:", rstp_get_name(rstp));
202 if (rstp_is_root_bridge(rstp)) {
206 for (j = 0; j < b->n_ports; j++) {
207 struct rstp_port *p = rstp_get_port(rstp, j);
208 enum rstp_state state = rstp_port_get_state(p);
210 printf("\tport %d", j);
212 printf(" (lan %s)", b->ports[j]->name);
214 printf(" (disconnected)");
216 printf(": %s", rstp_state_name(state));
217 if (p == rstp_get_root_port(rstp)) {
218 printf(" (root port, root_path_cost=%u)",
219 rstp_get_root_path_cost(rstp));
226 static void dump_lan_tree(struct test_case *, struct lan *, int level);
229 dump_bridge_tree(struct test_case *tc, struct bridge *b, int level)
237 for (i = 0; i < level; i++) {
240 printf("%s\n", rstp_get_name(b->rstp));
241 for (i = 0; i < b->n_ports; i++) {
242 struct lan *lan = b->ports[i];
243 struct rstp_port *p = rstp_get_port(b->rstp, i);
244 if (rstp_port_get_state(p) == RSTP_FORWARDING && lan) {
245 dump_lan_tree(tc, lan, level + 1);
251 dump_lan_tree(struct test_case *tc, struct lan *lan, int level)
259 for (i = 0; i < level; i++) {
262 printf("%s\n", lan->name);
263 for (i = 0; i < lan->n_conns; i++) {
264 struct bridge *b = lan->conns[i].bridge;
265 dump_bridge_tree(tc, b, level + 1);
270 tree(struct test_case *tc)
274 for (i = 0; i < tc->n_bridges; i++) {
275 struct bridge *b = tc->bridges[i];
278 for (i = 0; i < tc->n_lans; i++) {
279 struct lan *lan = tc->lans[i];
280 lan->reached = false;
282 for (i = 0; i < tc->n_bridges; i++) {
283 struct bridge *b = tc->bridges[i];
284 struct rstp *rstp = b->rstp;
285 if (rstp_is_root_bridge(rstp)) {
286 dump_bridge_tree(tc, b, 0);
292 simulate(struct test_case *tc, int granularity)
294 int time, i, round_trips;
295 for (time = 0; time < 1000 * 180; time += granularity) {
297 for (i = 0; i < tc->n_bridges; i++) {
298 rstp_tick_timers(tc->bridges[i]->rstp);
300 for (round_trips = 0; round_trips < granularity; round_trips++) {
302 for (i = 0; i < tc->n_bridges; i++) {
303 struct bridge *b = tc->bridges[i];
304 for (; b->rxq_tail != b->rxq_head; b->rxq_tail++) {
305 struct bpdu *bpdu = &b->rxq[b->rxq_tail % RXQ_SIZE];
306 rstp_received_bpdu(rstp_get_port(b->rstp, bpdu->port_no),
307 bpdu->data, bpdu->size);
320 err(const char *message, ...)
325 err(const char *message, ...)
329 fprintf(stderr, "%s:%d:%"PRIdPTR": ", file_name, line_number, pos - line);
330 va_start(args, message);
331 vfprintf(stderr, message, args);
339 warn(const char *message, ...)
343 warn(const char *message, ...)
347 fprintf(stderr, "%s:%d: ", file_name, line_number);
348 va_start(args, message);
349 vfprintf(stderr, message, args);
361 while (isspace((unsigned char) *pos)) {
371 if (isalpha((unsigned char) *pos)) {
372 while (isalpha((unsigned char) *++pos)) {
375 } else if (isdigit((unsigned char) *pos)) {
376 if (*pos == '0' && (pos[1] == 'x' || pos[1] == 'X')) {
378 while (isxdigit((unsigned char) *pos)) {
382 while (isdigit((unsigned char) *++pos)) {
391 token = xmemdup0(start, pos - start);
398 char *save_pos = pos;
399 if (token && isdigit((unsigned char) *token)) {
400 *intp = strtol(token, NULL, 0);
410 match(const char *want)
412 if (token && !strcmp(want, token)) {
425 err("expected integer");
431 must_match(const char *want)
434 err("expected \"%s\"", want);
439 test_rstp_main(int argc, char *argv[])
441 struct test_case *tc;
445 vlog_set_pattern(VLF_CONSOLE, "%c|%p|%m");
446 vlog_set_levels(NULL, VLF_SYSLOG, VLL_OFF);
449 ovs_fatal(0, "usage: test-rstp INPUT.RSTP\n");
453 input_file = fopen(file_name, "r");
455 ovs_fatal(errno, "error opening \"%s\"", file_name);
458 tc = new_test_case();
459 for (i = 0; i < 26; i++) {
466 for (line_number = 1; fgets(line, sizeof line, input_file);
469 char *newline, *hash;
471 newline = strchr(line, '\n');
475 hash = strchr(line, '#');
484 if (match("bridge")) {
485 struct bridge *bridge;
486 int bridge_no, port_no;
488 bridge_no = must_get_int();
489 if (bridge_no < tc->n_bridges) {
490 bridge = tc->bridges[bridge_no];
491 } else if (bridge_no == tc->n_bridges) {
492 bridge = new_bridge(tc, must_get_int());
494 err("bridges must be numbered consecutively from 0");
497 rstp_set_bridge_priority(bridge->rstp, must_get_int());
500 for (port_no = 1; port_no < MAX_PORTS; port_no++) {
501 struct rstp_port *p = rstp_get_port(bridge->rstp, port_no);
502 if (!token || match("X")) {
504 reinitialize_port(p);
505 rstp_port_set_state(p, RSTP_DISABLED);
506 rstp_port_set_mac_operational(p, false);
507 } else if (match("_")) {
513 if (!strcmp(token, "0")) {
515 } else if (strlen(token) == 1
516 && islower((unsigned char)*token)) {
517 lan = tc->lans[*token - 'a'];
519 err("%s is not a valid LAN name "
520 "(0 or a lowercase letter)", token);
524 path_cost = match(":") ? must_get_int() :
525 RSTP_DEFAULT_PORT_PATH_COST;
526 if (port_no < bridge->n_ports) {
528 reinitialize_port(p);
529 rstp_port_set_path_cost(p, path_cost);
530 rstp_port_set_state(p, RSTP_DISCARDING);
531 rstp_port_set_mac_operational(p, true);
532 reconnect_port(bridge, port_no, lan);
533 } else if (port_no == bridge->n_ports) {
534 new_port(bridge, lan, path_cost);
535 bridge->n_active_ports++;
537 err("ports must be numbered consecutively");
540 rstp_port_set_priority(p, must_get_int());
545 } else if (match("run")) {
546 simulate(tc, must_get_int());
547 } else if (match("dump")) {
549 } else if (match("tree")) {
551 } else if (match("check")) {
554 int bridge_no, port_no;
557 bridge_no = must_get_int();
558 if (bridge_no >= tc->n_bridges) {
559 err("no bridge numbered %d", bridge_no);
561 b = tc->bridges[bridge_no];
566 if (match("rootid")) {
569 rootid = must_get_int();
571 rootid |= (uint64_t) must_get_int() << 48;
573 rootid |= UINT64_C(0x8000) << 48;
575 if (rstp_get_designated_root(rstp) != rootid) {
576 warn("%s: root "RSTP_ID_FMT", not %"PRIx64,
578 RSTP_ID_ARGS(rstp_get_designated_root(rstp)),
582 cost_value = rstp_get_root_path_cost(rstp);
584 if (cost_value != 0) {
585 warn("%s: root path cost of root is %d instead of 0 \n",
586 rstp_get_name(rstp), cost_value);
588 if (!rstp_is_root_bridge(rstp)) {
589 warn("%s: root is "RSTP_ID_FMT", not "RSTP_ID_FMT"",
591 RSTP_ID_ARGS(rstp_get_designated_root(rstp)),
592 RSTP_ID_ARGS(rstp_get_bridge_id(rstp)));
594 for (port_no = 1; port_no < b->n_active_ports; port_no++) {
595 struct rstp_port *p = rstp_get_port(rstp, port_no);
596 enum rstp_state state = rstp_port_get_state(p);
597 if (state != RSTP_DISABLED && state != RSTP_FORWARDING) {
598 warn("%s: root port %d in state %s",
599 rstp_get_name(b->rstp), port_no,
600 rstp_state_name(state));
604 for (port_no = 1; port_no < b->n_active_ports; port_no++) {
605 struct rstp_port *p = rstp_get_port(rstp, port_no);
606 enum rstp_state state;
607 if (token == NULL || match("D")) {
608 state = RSTP_DISABLED;
609 } else if (match("Di")) {
610 state = RSTP_DISCARDING;
611 } else if (match("Le")) {
612 state = RSTP_LEARNING;
613 } else if (match("F")) {
614 state = RSTP_FORWARDING;
615 } else if (match("_")) {
618 err("unknown port state %s", token);
620 if (rstp_port_get_state(p) != state) {
621 warn("%s port %d: state is %s but should be %s",
622 rstp_get_name(rstp), port_no,
623 rstp_state_name(rstp_port_get_state(p)),
624 rstp_state_name(state));
626 if (state == RSTP_FORWARDING) {
627 struct rstp_port *root_port = rstp_get_root_port(rstp);
629 int root_path_cost = must_get_int();
630 if (p != root_port) {
631 warn("%s: port %d is not the root port",
632 rstp_get_name(rstp), port_no);
634 warn("%s: (there is no root port)",
635 rstp_get_name(rstp));
637 warn("%s: (port %d is the root port)",
639 rstp_port_number(root_port));
641 } else if (cost_value != root_path_cost) {
642 warn("%s: root path cost is %d, should be %d",
647 } else if (p == root_port) {
648 warn("%s: port %d is the root port but "
649 "not expected to be",
650 rstp_get_name(rstp), port_no);
656 printf("failing because of %d warnings\n", n_warnings);
661 printf("failing because of errors\n");
662 err("trailing garbage on line");
667 for (i = 0; i < tc->n_lans; i++) {
668 struct lan *lan = tc->lans[i];
669 free(CONST_CAST(char *, lan->name));
672 for (i = 0; i < tc->n_bridges; i++) {
673 struct bridge *bridge = tc->bridges[i];
675 for (j = 1; j < MAX_PORTS; j++) {
676 rstp_delete_port(rstp_get_port(bridge->rstp, j));
678 rstp_unref(bridge->rstp);
684 OVSTEST_REGISTER("test-rstp", test_rstp_main);