3 #include "rstp-common.h"
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 /* This callback is called with rstp_mutex held. */
77 send_bpdu(struct ofpbuf *pkt, void *port_, void *b_)
78 OVS_REQUIRES(rstp_mutex)
80 struct bridge *b = b_;
82 const struct rstp_port *port = port_;
83 uint16_t port_no = port->port_number;
85 assert(port_no < b->n_ports);
86 lan = b->ports[port_no];
88 const void *data = ofpbuf_l3(pkt);
89 size_t size = (char *) ofpbuf_tail(pkt) - (char *) data;
92 for (i = 0; i < lan->n_conns; i++) {
93 struct lan_conn *conn = &lan->conns[i];
95 if (conn->bridge != b || conn->port_no != port_no) {
96 struct bridge *dst = conn->bridge;
97 struct bpdu *bpdu = &dst->rxq[dst->rxq_head++ % RXQ_SIZE];
99 assert(dst->rxq_head - dst->rxq_tail <= RXQ_SIZE);
100 bpdu->data = xmemdup(data, size);
102 bpdu->port_no = conn->port_no;
109 static struct bridge *
110 new_bridge(struct test_case *tc, int id)
112 struct bridge *b = xmalloc(sizeof *b);
119 snprintf(name, sizeof name, "rstp%x", id);
120 b->rstp = rstp_create(name, id, send_bpdu, b);
121 for (i = 1; i < MAX_PORTS; i++) {
122 p = rstp_add_port(b->rstp);
123 rstp_port_set_aux(p, p);
124 rstp_port_set_state(p, RSTP_DISABLED);
125 rstp_port_set_mac_operational(p, true);
128 assert(tc->n_bridges < ARRAY_SIZE(tc->bridges));
130 b->n_active_ports = 1;
131 b->rxq_head = b->rxq_tail = 0;
132 tc->bridges[tc->n_bridges++] = b;
137 new_lan(struct test_case *tc, const char *name)
139 struct lan *lan = xmalloc(sizeof *lan);
141 lan->name = xstrdup(name);
143 assert(tc->n_lans < ARRAY_SIZE(tc->lans));
144 tc->lans[tc->n_lans++] = lan;
149 reconnect_port(struct bridge *b, int port_no, struct lan *new_lan)
154 assert(port_no < b->n_ports);
155 old_lan = b->ports[port_no];
156 if (old_lan == new_lan) {
160 /* Disconnect from old_lan. */
162 for (j = 0; j < old_lan->n_conns; j++) {
163 struct lan_conn *c = &old_lan->conns[j];
165 if (c->bridge == b && c->port_no == port_no) {
166 memmove(c, c + 1, sizeof *c * (old_lan->n_conns - j - 1));
173 /* Connect to new_lan. */
174 b->ports[port_no] = new_lan;
176 int conn_no = new_lan->n_conns++;
178 assert(conn_no < ARRAY_SIZE(new_lan->conns));
179 new_lan->conns[conn_no].bridge = b;
180 new_lan->conns[conn_no].port_no = port_no;
185 new_port(struct bridge *b, struct lan *lan, uint32_t path_cost)
187 int port_no = b->n_ports++;
188 struct rstp_port *p = rstp_get_port(b->rstp, port_no);
190 assert(port_no < ARRAY_SIZE(b->ports));
191 b->ports[port_no] = NULL;
193 reinitialize_port(p);
194 rstp_port_set_path_cost(p, path_cost);
195 rstp_port_set_state(p, RSTP_DISCARDING);
196 rstp_port_set_mac_operational(p, true);
197 reconnect_port(b, port_no, lan);
201 dump(struct test_case *tc)
205 for (i = 0; i < tc->n_bridges; i++) {
206 struct bridge *b = tc->bridges[i];
207 struct rstp *rstp = b->rstp;
210 printf("%s:", rstp_get_name(rstp));
211 if (rstp_is_root_bridge(rstp)) {
215 for (j = 0; j < b->n_ports; j++) {
216 struct rstp_port *p = rstp_get_port(rstp, j);
217 enum rstp_state state = rstp_port_get_state(p);
219 printf("\tport %d", j);
221 printf(" (lan %s)", b->ports[j]->name);
223 printf(" (disconnected)");
225 printf(": %s", rstp_state_name(state));
226 if (p == rstp_get_root_port(rstp)) {
227 printf(" (root port, root_path_cost=%u)",
228 rstp_get_root_path_cost(rstp));
235 static void dump_lan_tree(struct test_case *, struct lan *, int level);
238 dump_bridge_tree(struct test_case *tc, struct bridge *b, int level)
246 for (i = 0; i < level; i++) {
249 printf("%s\n", rstp_get_name(b->rstp));
250 for (i = 0; i < b->n_ports; i++) {
251 struct lan *lan = b->ports[i];
252 struct rstp_port *p = rstp_get_port(b->rstp, i);
254 if (rstp_port_get_state(p) == RSTP_FORWARDING && lan) {
255 dump_lan_tree(tc, lan, level + 1);
261 dump_lan_tree(struct test_case *tc, struct lan *lan, int level)
269 for (i = 0; i < level; i++) {
272 printf("%s\n", lan->name);
273 for (i = 0; i < lan->n_conns; i++) {
274 struct bridge *b = lan->conns[i].bridge;
276 dump_bridge_tree(tc, b, level + 1);
281 tree(struct test_case *tc)
285 for (i = 0; i < tc->n_bridges; i++) {
286 struct bridge *b = tc->bridges[i];
290 for (i = 0; i < tc->n_lans; i++) {
291 struct lan *lan = tc->lans[i];
293 lan->reached = false;
295 for (i = 0; i < tc->n_bridges; i++) {
296 struct bridge *b = tc->bridges[i];
297 struct rstp *rstp = b->rstp;
299 if (rstp_is_root_bridge(rstp)) {
300 dump_bridge_tree(tc, b, 0);
306 simulate(struct test_case *tc, int granularity)
308 int time, i, round_trips;
310 for (time = 0; time < 1000 * 180; time += granularity) {
312 for (i = 0; i < tc->n_bridges; i++) {
313 rstp_tick_timers(tc->bridges[i]->rstp);
315 for (round_trips = 0; round_trips < granularity; round_trips++) {
318 for (i = 0; i < tc->n_bridges; i++) {
319 struct bridge *b = tc->bridges[i];
321 for (; b->rxq_tail != b->rxq_head; b->rxq_tail++) {
322 struct bpdu *bpdu = &b->rxq[b->rxq_tail % RXQ_SIZE];
324 rstp_port_received_bpdu(rstp_get_port(b->rstp,
326 bpdu->data, bpdu->size);
338 NO_RETURN static void
339 err(const char *message, ...)
343 err(const char *message, ...)
347 fprintf(stderr, "%s:%d:%"PRIdPTR": ", file_name, line_number, pos - line);
348 va_start(args, message);
349 vfprintf(stderr, message, args);
357 warn(const char *message, ...)
361 warn(const char *message, ...)
365 fprintf(stderr, "%s:%d: ", file_name, line_number);
366 va_start(args, message);
367 vfprintf(stderr, message, args);
379 while (isspace((unsigned char) *pos)) {
389 if (isalpha((unsigned char) *pos)) {
390 while (isalpha((unsigned char) *++pos)) {
393 } else if (isdigit((unsigned char) *pos)) {
394 if (*pos == '0' && (pos[1] == 'x' || pos[1] == 'X')) {
396 while (isxdigit((unsigned char) *pos)) {
400 while (isdigit((unsigned char) *++pos)) {
409 token = xmemdup0(start, pos - start);
416 char *save_pos = pos;
418 if (token && isdigit((unsigned char) *token)) {
419 *intp = strtol(token, NULL, 0);
429 match(const char *want)
431 if (token && !strcmp(want, token)) {
445 err("expected integer");
451 must_match(const char *want)
454 err("expected \"%s\"", want);
459 test_rstp_main(int argc, char *argv[])
461 struct test_case *tc;
465 vlog_set_pattern(VLF_CONSOLE, "%c|%p|%m");
466 vlog_set_levels(NULL, VLF_SYSLOG, VLL_OFF);
469 ovs_fatal(0, "usage: test-rstp INPUT.RSTP\n");
473 input_file = fopen(file_name, "r");
475 ovs_fatal(errno, "error opening \"%s\"", file_name);
478 tc = new_test_case();
479 for (i = 0; i < 26; i++) {
487 for (line_number = 1; fgets(line, sizeof line, input_file);
490 char *newline, *hash;
492 newline = strchr(line, '\n');
496 hash = strchr(line, '#');
505 if (match("bridge")) {
506 struct bridge *bridge;
507 int bridge_no, port_no;
509 bridge_no = must_get_int();
510 if (bridge_no < tc->n_bridges) {
511 bridge = tc->bridges[bridge_no];
512 } else if (bridge_no == tc->n_bridges) {
513 bridge = new_bridge(tc, must_get_int());
515 err("bridges must be numbered consecutively from 0");
518 rstp_set_bridge_priority(bridge->rstp, must_get_int());
521 for (port_no = 1; port_no < MAX_PORTS; port_no++) {
522 struct rstp_port *p = rstp_get_port(bridge->rstp, port_no);
524 if (!token || match("X")) {
526 reinitialize_port(p);
527 rstp_port_set_state(p, RSTP_DISABLED);
528 rstp_port_set_mac_operational(p, false);
529 } else if (match("_")) {
535 if (!strcmp(token, "0")) {
537 } else if (strlen(token) == 1
538 && islower((unsigned char)*token)) {
539 lan = tc->lans[*token - 'a'];
541 err("%s is not a valid LAN name "
542 "(0 or a lowercase letter)", token);
546 path_cost = match(":") ? must_get_int() :
547 RSTP_DEFAULT_PORT_PATH_COST;
548 if (port_no < bridge->n_ports) {
550 reinitialize_port(p);
551 rstp_port_set_path_cost(p, path_cost);
552 rstp_port_set_state(p, RSTP_DISCARDING);
553 rstp_port_set_mac_operational(p, true);
554 reconnect_port(bridge, port_no, lan);
555 } else if (port_no == bridge->n_ports) {
556 new_port(bridge, lan, path_cost);
557 bridge->n_active_ports++;
559 err("ports must be numbered consecutively");
562 rstp_port_set_priority(p, must_get_int());
567 } else if (match("run")) {
568 simulate(tc, must_get_int());
569 } else if (match("dump")) {
571 } else if (match("tree")) {
573 } else if (match("check")) {
576 int bridge_no, port_no;
579 bridge_no = must_get_int();
580 if (bridge_no >= tc->n_bridges) {
581 err("no bridge numbered %d", bridge_no);
583 b = tc->bridges[bridge_no];
588 if (match("rootid")) {
592 rootid = must_get_int();
594 rootid |= (uint64_t) must_get_int() << 48;
596 rootid |= UINT64_C(0x8000) << 48;
598 if (rstp_get_designated_root(rstp) != rootid) {
599 warn("%s: root "RSTP_ID_FMT", not %"PRIx64,
601 RSTP_ID_ARGS(rstp_get_designated_root(rstp)),
605 cost_value = rstp_get_root_path_cost(rstp);
607 if (cost_value != 0) {
608 warn("%s: root path cost of root is %d instead of 0 \n",
609 rstp_get_name(rstp), cost_value);
611 if (!rstp_is_root_bridge(rstp)) {
612 warn("%s: root is "RSTP_ID_FMT", not "RSTP_ID_FMT"",
614 RSTP_ID_ARGS(rstp_get_designated_root(rstp)),
615 RSTP_ID_ARGS(rstp_get_bridge_id(rstp)));
617 for (port_no = 1; port_no < b->n_active_ports; port_no++) {
618 struct rstp_port *p = rstp_get_port(rstp, port_no);
619 enum rstp_state state = rstp_port_get_state(p);
621 if (state != RSTP_DISABLED && state != RSTP_FORWARDING) {
622 warn("%s: root port %d in state %s",
623 rstp_get_name(b->rstp), port_no,
624 rstp_state_name(state));
628 for (port_no = 1; port_no < b->n_active_ports; port_no++) {
629 struct rstp_port *p = rstp_get_port(rstp, port_no);
630 enum rstp_state state;
632 if (token == NULL || match("D")) {
633 state = RSTP_DISABLED;
634 } else if (match("Di")) {
635 state = RSTP_DISCARDING;
636 } else if (match("Le")) {
637 state = RSTP_LEARNING;
638 } else if (match("F")) {
639 state = RSTP_FORWARDING;
640 } else if (match("_")) {
643 err("unknown port state %s", token);
645 if (rstp_port_get_state(p) != state) {
646 warn("%s port %d: state is %s but should be %s",
647 rstp_get_name(rstp), port_no,
648 rstp_state_name(rstp_port_get_state(p)),
649 rstp_state_name(state));
651 if (state == RSTP_FORWARDING) {
652 struct rstp_port *root_port = rstp_get_root_port(rstp);
655 int root_path_cost = must_get_int();
657 if (p != root_port) {
658 warn("%s: port %d is not the root port",
659 rstp_get_name(rstp), port_no);
661 warn("%s: (there is no root port)",
662 rstp_get_name(rstp));
664 warn("%s: (port %d is the root port)",
666 rstp_port_get_number(root_port));
668 } else if (cost_value != root_path_cost) {
669 warn("%s: root path cost is %d, should be %d",
674 } else if (p == root_port) {
675 warn("%s: port %d is the root port but "
676 "not expected to be",
677 rstp_get_name(rstp), port_no);
683 printf("failing because of %d warnings\n", n_warnings);
688 printf("failing because of errors\n");
689 err("trailing garbage on line");
694 for (i = 0; i < tc->n_lans; i++) {
695 struct lan *lan = tc->lans[i];
697 free(CONST_CAST(char *, lan->name));
700 for (i = 0; i < tc->n_bridges; i++) {
701 struct bridge *bridge = tc->bridges[i];
704 for (j = 1; j < MAX_PORTS; j++) {
705 rstp_port_unref(rstp_get_port(bridge->rstp, j));
707 rstp_unref(bridge->rstp);
713 OVSTEST_REGISTER("test-rstp", test_rstp_main);