2 * Copyright (c) 2008, 2009, 2010 Nicira Networks.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #include "ofp-print.h"
22 #include <sys/types.h>
23 #include <netinet/in.h>
30 #include "dynamic-string.h"
33 #include "openflow/openflow.h"
34 #include "openflow/nicira-ext.h"
40 static void ofp_print_port_name(struct ds *string, uint16_t port);
42 /* Returns a string that represents the contents of the Ethernet frame in the
43 * 'len' bytes starting at 'data' to 'stream' as output by tcpdump.
44 * 'total_len' specifies the full length of the Ethernet frame (of which 'len'
45 * bytes were captured).
47 * The caller must free the returned string.
49 * This starts and kills a tcpdump subprocess so it's quite expensive. */
51 ofp_packet_to_string(const void *data, size_t len, size_t total_len OVS_UNUSED)
53 struct ds ds = DS_EMPTY_INITIALIZER;
62 buf.data = (void *) data;
67 ovs_error(errno, "tmpfile");
68 return xstrdup("<error>");
70 pcap_write_header(pcap);
71 pcap_write(pcap, &buf);
74 ovs_error(errno, "error writing temporary file");
78 snprintf(command, sizeof command, "/usr/sbin/tcpdump -e -n -r /dev/fd/%d 2>/dev/null",
80 tcpdump = popen(command, "r");
83 ovs_error(errno, "exec(\"%s\")", command);
84 return xstrdup("<error>");
87 while ((c = getc(tcpdump)) != EOF) {
91 status = pclose(tcpdump);
92 if (WIFEXITED(status)) {
93 if (WEXITSTATUS(status))
94 ovs_error(0, "tcpdump exited with status %d", WEXITSTATUS(status));
95 } else if (WIFSIGNALED(status)) {
96 ovs_error(0, "tcpdump exited with signal %d", WTERMSIG(status));
101 /* Pretty-print the OFPT_PACKET_IN packet of 'len' bytes at 'oh' to 'stream'
102 * at the given 'verbosity' level. */
104 ofp_packet_in(struct ds *string, const void *oh, size_t len, int verbosity)
106 const struct ofp_packet_in *op = oh;
109 ds_put_format(string, " total_len=%"PRIu16" in_port=",
110 ntohs(op->total_len));
111 ofp_print_port_name(string, ntohs(op->in_port));
113 if (op->reason == OFPR_ACTION)
114 ds_put_cstr(string, " (via action)");
115 else if (op->reason != OFPR_NO_MATCH)
116 ds_put_format(string, " (***reason %"PRIu8"***)", op->reason);
118 data_len = len - offsetof(struct ofp_packet_in, data);
119 ds_put_format(string, " data_len=%zu", data_len);
120 if (htonl(op->buffer_id) == UINT32_MAX) {
121 ds_put_format(string, " (unbuffered)");
122 if (ntohs(op->total_len) != data_len)
123 ds_put_format(string, " (***total_len != data_len***)");
125 ds_put_format(string, " buffer=0x%08"PRIx32, ntohl(op->buffer_id));
126 if (ntohs(op->total_len) < data_len)
127 ds_put_format(string, " (***total_len < data_len***)");
129 ds_put_char(string, '\n');
133 struct ofpbuf packet;
134 struct ofp_match match;
135 packet.data = (void *) op->data;
136 packet.size = data_len;
137 flow_extract(&packet, 0, ntohs(op->in_port), &flow);
138 flow_to_match(&flow, 0, false, &match);
139 ofp_print_match(string, &match, verbosity);
140 ds_put_char(string, '\n');
143 char *packet = ofp_packet_to_string(op->data, data_len,
144 ntohs(op->total_len));
145 ds_put_cstr(string, packet);
150 static void ofp_print_port_name(struct ds *string, uint16_t port)
169 case OFPP_CONTROLLER:
179 ds_put_format(string, "%"PRIu16, port);
182 ds_put_cstr(string, name);
186 ofp_print_nx_action(struct ds *string, const struct nx_action_header *nah)
188 switch (ntohs(nah->subtype)) {
189 case NXAST_RESUBMIT: {
190 const struct nx_action_resubmit *nar = (struct nx_action_resubmit *)nah;
191 ds_put_format(string, "resubmit:");
192 ofp_print_port_name(string, ntohs(nar->in_port));
196 case NXAST_SET_TUNNEL: {
197 const struct nx_action_set_tunnel *nast =
198 (struct nx_action_set_tunnel *)nah;
199 ds_put_format(string, "set_tunnel:0x%08"PRIx32, ntohl(nast->tun_id));
204 ds_put_format(string, "***unknown Nicira action:%d***\n",
205 ntohs(nah->subtype));
210 ofp_print_action(struct ds *string, const struct ofp_action_header *ah,
216 struct openflow_action {
221 const struct openflow_action of_actions[] = {
223 sizeof(struct ofp_action_output),
224 sizeof(struct ofp_action_output),
226 [OFPAT_SET_VLAN_VID] = {
227 sizeof(struct ofp_action_vlan_vid),
228 sizeof(struct ofp_action_vlan_vid),
230 [OFPAT_SET_VLAN_PCP] = {
231 sizeof(struct ofp_action_vlan_pcp),
232 sizeof(struct ofp_action_vlan_pcp),
234 [OFPAT_STRIP_VLAN] = {
235 sizeof(struct ofp_action_header),
236 sizeof(struct ofp_action_header),
238 [OFPAT_SET_DL_SRC] = {
239 sizeof(struct ofp_action_dl_addr),
240 sizeof(struct ofp_action_dl_addr),
242 [OFPAT_SET_DL_DST] = {
243 sizeof(struct ofp_action_dl_addr),
244 sizeof(struct ofp_action_dl_addr),
246 [OFPAT_SET_NW_SRC] = {
247 sizeof(struct ofp_action_nw_addr),
248 sizeof(struct ofp_action_nw_addr),
250 [OFPAT_SET_NW_DST] = {
251 sizeof(struct ofp_action_nw_addr),
252 sizeof(struct ofp_action_nw_addr),
254 [OFPAT_SET_NW_TOS] = {
255 sizeof(struct ofp_action_nw_tos),
256 sizeof(struct ofp_action_nw_tos),
258 [OFPAT_SET_TP_SRC] = {
259 sizeof(struct ofp_action_tp_port),
260 sizeof(struct ofp_action_tp_port),
262 [OFPAT_SET_TP_DST] = {
263 sizeof(struct ofp_action_tp_port),
264 sizeof(struct ofp_action_tp_port),
266 /* OFPAT_VENDOR is not here, since it would blow up the array size. */
269 if (actions_len < sizeof *ah) {
270 ds_put_format(string, "***action array too short for next action***\n");
274 type = ntohs(ah->type);
275 len = ntohs(ah->len);
276 if (actions_len < len) {
277 ds_put_format(string, "***truncated action %"PRIu16"***\n", type);
281 if ((len % 8) != 0) {
282 ds_put_format(string,
283 "***action %"PRIu16" length not a multiple of 8***\n",
288 if (type < ARRAY_SIZE(of_actions)) {
289 const struct openflow_action *act = &of_actions[type];
290 if ((len < act->min_size) || (len > act->max_size)) {
291 ds_put_format(string,
292 "***action %"PRIu16" wrong length: %zu***\n", type, len);
299 struct ofp_action_output *oa = (struct ofp_action_output *)ah;
300 uint16_t port = ntohs(oa->port);
301 if (port < OFPP_MAX) {
302 ds_put_format(string, "output:%"PRIu16, port);
304 ofp_print_port_name(string, port);
305 if (port == OFPP_CONTROLLER) {
307 ds_put_format(string, ":%"PRIu16, ntohs(oa->max_len));
309 ds_put_cstr(string, ":all");
316 case OFPAT_SET_VLAN_VID: {
317 struct ofp_action_vlan_vid *va = (struct ofp_action_vlan_vid *)ah;
318 ds_put_format(string, "mod_vlan_vid:%"PRIu16, ntohs(va->vlan_vid));
322 case OFPAT_SET_VLAN_PCP: {
323 struct ofp_action_vlan_pcp *va = (struct ofp_action_vlan_pcp *)ah;
324 ds_put_format(string, "mod_vlan_pcp:%"PRIu8, va->vlan_pcp);
328 case OFPAT_STRIP_VLAN:
329 ds_put_cstr(string, "strip_vlan");
332 case OFPAT_SET_DL_SRC: {
333 struct ofp_action_dl_addr *da = (struct ofp_action_dl_addr *)ah;
334 ds_put_format(string, "mod_dl_src:"ETH_ADDR_FMT,
335 ETH_ADDR_ARGS(da->dl_addr));
339 case OFPAT_SET_DL_DST: {
340 struct ofp_action_dl_addr *da = (struct ofp_action_dl_addr *)ah;
341 ds_put_format(string, "mod_dl_dst:"ETH_ADDR_FMT,
342 ETH_ADDR_ARGS(da->dl_addr));
346 case OFPAT_SET_NW_SRC: {
347 struct ofp_action_nw_addr *na = (struct ofp_action_nw_addr *)ah;
348 ds_put_format(string, "mod_nw_src:"IP_FMT, IP_ARGS(&na->nw_addr));
352 case OFPAT_SET_NW_DST: {
353 struct ofp_action_nw_addr *na = (struct ofp_action_nw_addr *)ah;
354 ds_put_format(string, "mod_nw_dst:"IP_FMT, IP_ARGS(&na->nw_addr));
358 case OFPAT_SET_NW_TOS: {
359 struct ofp_action_nw_tos *nt = (struct ofp_action_nw_tos *)ah;
360 ds_put_format(string, "mod_nw_tos:%d", nt->nw_tos);
364 case OFPAT_SET_TP_SRC: {
365 struct ofp_action_tp_port *ta = (struct ofp_action_tp_port *)ah;
366 ds_put_format(string, "mod_tp_src:%d", ntohs(ta->tp_port));
370 case OFPAT_SET_TP_DST: {
371 struct ofp_action_tp_port *ta = (struct ofp_action_tp_port *)ah;
372 ds_put_format(string, "mod_tp_dst:%d", ntohs(ta->tp_port));
377 struct ofp_action_vendor_header *avh
378 = (struct ofp_action_vendor_header *)ah;
379 if (len < sizeof *avh) {
380 ds_put_format(string, "***ofpat_vendor truncated***\n");
383 if (avh->vendor == htonl(NX_VENDOR_ID)) {
384 ofp_print_nx_action(string, (struct nx_action_header *)avh);
386 ds_put_format(string, "vendor action:0x%x", ntohl(avh->vendor));
392 ds_put_format(string, "(decoder %"PRIu16" not implemented)", type);
400 ofp_print_actions(struct ds *string, const struct ofp_action_header *action,
403 uint8_t *p = (uint8_t *)action;
406 ds_put_cstr(string, "actions=");
408 ds_put_cstr(string, "drop");
410 while (actions_len > 0) {
412 ds_put_cstr(string, ",");
414 len = ofp_print_action(string, (struct ofp_action_header *)p,
424 /* Pretty-print the OFPT_PACKET_OUT packet of 'len' bytes at 'oh' to 'string'
425 * at the given 'verbosity' level. */
426 static void ofp_packet_out(struct ds *string, const void *oh, size_t len,
429 const struct ofp_packet_out *opo = oh;
430 size_t actions_len = ntohs(opo->actions_len);
432 ds_put_cstr(string, " in_port=");
433 ofp_print_port_name(string, ntohs(opo->in_port));
435 ds_put_format(string, " actions_len=%zu ", actions_len);
436 if (actions_len > (ntohs(opo->header.length) - sizeof *opo)) {
437 ds_put_format(string, "***packet too short for action length***\n");
440 ofp_print_actions(string, opo->actions, actions_len);
442 if (ntohl(opo->buffer_id) == UINT32_MAX) {
443 int data_len = len - sizeof *opo - actions_len;
444 ds_put_format(string, " data_len=%d", data_len);
445 if (verbosity > 0 && len > sizeof *opo) {
446 char *packet = ofp_packet_to_string(
447 (uint8_t *)opo->actions + actions_len, data_len, data_len);
448 ds_put_char(string, '\n');
449 ds_put_cstr(string, packet);
453 ds_put_format(string, " buffer=0x%08"PRIx32, ntohl(opo->buffer_id));
455 ds_put_char(string, '\n');
458 /* qsort comparison function. */
460 compare_ports(const void *a_, const void *b_)
462 const struct ofp_phy_port *a = a_;
463 const struct ofp_phy_port *b = b_;
464 uint16_t ap = ntohs(a->port_no);
465 uint16_t bp = ntohs(b->port_no);
467 return ap < bp ? -1 : ap > bp;
470 static void ofp_print_port_features(struct ds *string, uint32_t features)
473 ds_put_cstr(string, "Unsupported\n");
476 if (features & OFPPF_10MB_HD) {
477 ds_put_cstr(string, "10MB-HD ");
479 if (features & OFPPF_10MB_FD) {
480 ds_put_cstr(string, "10MB-FD ");
482 if (features & OFPPF_100MB_HD) {
483 ds_put_cstr(string, "100MB-HD ");
485 if (features & OFPPF_100MB_FD) {
486 ds_put_cstr(string, "100MB-FD ");
488 if (features & OFPPF_1GB_HD) {
489 ds_put_cstr(string, "1GB-HD ");
491 if (features & OFPPF_1GB_FD) {
492 ds_put_cstr(string, "1GB-FD ");
494 if (features & OFPPF_10GB_FD) {
495 ds_put_cstr(string, "10GB-FD ");
497 if (features & OFPPF_COPPER) {
498 ds_put_cstr(string, "COPPER ");
500 if (features & OFPPF_FIBER) {
501 ds_put_cstr(string, "FIBER ");
503 if (features & OFPPF_AUTONEG) {
504 ds_put_cstr(string, "AUTO_NEG ");
506 if (features & OFPPF_PAUSE) {
507 ds_put_cstr(string, "AUTO_PAUSE ");
509 if (features & OFPPF_PAUSE_ASYM) {
510 ds_put_cstr(string, "AUTO_PAUSE_ASYM ");
512 ds_put_char(string, '\n');
516 ofp_print_phy_port(struct ds *string, const struct ofp_phy_port *port)
518 uint8_t name[OFP_MAX_PORT_NAME_LEN];
521 memcpy(name, port->name, sizeof name);
522 for (j = 0; j < sizeof name - 1; j++) {
523 if (!isprint(name[j])) {
529 ds_put_char(string, ' ');
530 ofp_print_port_name(string, ntohs(port->port_no));
531 ds_put_format(string, "(%s): addr:"ETH_ADDR_FMT", config: %#x, state:%#x\n",
532 name, ETH_ADDR_ARGS(port->hw_addr), ntohl(port->config),
535 ds_put_format(string, " current: ");
536 ofp_print_port_features(string, ntohl(port->curr));
538 if (port->advertised) {
539 ds_put_format(string, " advertised: ");
540 ofp_print_port_features(string, ntohl(port->advertised));
542 if (port->supported) {
543 ds_put_format(string, " supported: ");
544 ofp_print_port_features(string, ntohl(port->supported));
547 ds_put_format(string, " peer: ");
548 ofp_print_port_features(string, ntohl(port->peer));
552 /* Pretty-print the struct ofp_switch_features of 'len' bytes at 'oh' to
553 * 'string' at the given 'verbosity' level. */
555 ofp_print_switch_features(struct ds *string, const void *oh, size_t len,
556 int verbosity OVS_UNUSED)
558 const struct ofp_switch_features *osf = oh;
559 struct ofp_phy_port *port_list;
563 ds_put_format(string, " ver:0x%x, dpid:%016"PRIx64"\n",
564 osf->header.version, ntohll(osf->datapath_id));
565 ds_put_format(string, "n_tables:%d, n_buffers:%d\n", osf->n_tables,
566 ntohl(osf->n_buffers));
567 ds_put_format(string, "features: capabilities:%#x, actions:%#x\n",
568 ntohl(osf->capabilities), ntohl(osf->actions));
570 if (ntohs(osf->header.length) >= sizeof *osf) {
571 len = MIN(len, ntohs(osf->header.length));
573 n_ports = (len - sizeof *osf) / sizeof *osf->ports;
575 port_list = xmemdup(osf->ports, len - sizeof *osf);
576 qsort(port_list, n_ports, sizeof *port_list, compare_ports);
577 for (i = 0; i < n_ports; i++) {
578 ofp_print_phy_port(string, &port_list[i]);
583 /* Pretty-print the struct ofp_switch_config of 'len' bytes at 'oh' to 'string'
584 * at the given 'verbosity' level. */
586 ofp_print_switch_config(struct ds *string, const void *oh,
587 size_t len OVS_UNUSED, int verbosity OVS_UNUSED)
589 const struct ofp_switch_config *osc = oh;
592 flags = ntohs(osc->flags);
594 ds_put_format(string, " ***unknown flags 0x%04"PRIx16"***", flags);
597 ds_put_format(string, " miss_send_len=%"PRIu16"\n", ntohs(osc->miss_send_len));
600 static void print_wild(struct ds *string, const char *leader, int is_wild,
601 int verbosity, const char *format, ...)
602 __attribute__((format(printf, 5, 6)));
604 static void print_wild(struct ds *string, const char *leader, int is_wild,
605 int verbosity, const char *format, ...)
607 if (is_wild && verbosity < 2) {
610 ds_put_cstr(string, leader);
614 va_start(args, format);
615 ds_put_format_valist(string, format, args);
618 ds_put_char(string, '*');
620 ds_put_char(string, ',');
624 print_ip_netmask(struct ds *string, const char *leader, uint32_t ip,
625 uint32_t wild_bits, int verbosity)
627 if (wild_bits >= 32 && verbosity < 2) {
630 ds_put_cstr(string, leader);
631 if (wild_bits < 32) {
632 ds_put_format(string, IP_FMT, IP_ARGS(&ip));
634 ds_put_format(string, "/%d", 32 - wild_bits);
637 ds_put_char(string, '*');
639 ds_put_char(string, ',');
643 ofp_print_match(struct ds *f, const struct ofp_match *om, int verbosity)
645 char *s = ofp_match_to_string(om, verbosity);
651 ofp_match_to_string(const struct ofp_match *om, int verbosity)
653 struct ds f = DS_EMPTY_INITIALIZER;
654 uint32_t w = ntohl(om->wildcards);
655 bool skip_type = false;
656 bool skip_proto = false;
658 if (!(w & OFPFW_DL_TYPE)) {
660 if (om->dl_type == htons(ETH_TYPE_IP)) {
661 if (!(w & OFPFW_NW_PROTO)) {
663 if (om->nw_proto == IP_TYPE_ICMP) {
664 ds_put_cstr(&f, "icmp,");
665 } else if (om->nw_proto == IP_TYPE_TCP) {
666 ds_put_cstr(&f, "tcp,");
667 } else if (om->nw_proto == IP_TYPE_UDP) {
668 ds_put_cstr(&f, "udp,");
670 ds_put_cstr(&f, "ip,");
674 ds_put_cstr(&f, "ip,");
676 } else if (om->dl_type == htons(ETH_TYPE_ARP)) {
677 ds_put_cstr(&f, "arp,");
682 if (w & NXFW_TUN_ID) {
683 ds_put_cstr(&f, "tun_id_wild,");
685 print_wild(&f, "in_port=", w & OFPFW_IN_PORT, verbosity,
686 "%d", ntohs(om->in_port));
687 print_wild(&f, "dl_vlan=", w & OFPFW_DL_VLAN, verbosity,
688 "%d", ntohs(om->dl_vlan));
689 print_wild(&f, "dl_vlan_pcp=", w & OFPFW_DL_VLAN_PCP, verbosity,
690 "%d", om->dl_vlan_pcp);
691 print_wild(&f, "dl_src=", w & OFPFW_DL_SRC, verbosity,
692 ETH_ADDR_FMT, ETH_ADDR_ARGS(om->dl_src));
693 print_wild(&f, "dl_dst=", w & OFPFW_DL_DST, verbosity,
694 ETH_ADDR_FMT, ETH_ADDR_ARGS(om->dl_dst));
696 print_wild(&f, "dl_type=", w & OFPFW_DL_TYPE, verbosity,
697 "0x%04x", ntohs(om->dl_type));
699 print_ip_netmask(&f, "nw_src=", om->nw_src,
700 (w & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT, verbosity);
701 print_ip_netmask(&f, "nw_dst=", om->nw_dst,
702 (w & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT, verbosity);
704 if (om->dl_type == htons(ETH_TYPE_ARP)) {
705 print_wild(&f, "opcode=", w & OFPFW_NW_PROTO, verbosity,
708 print_wild(&f, "nw_proto=", w & OFPFW_NW_PROTO, verbosity,
710 print_wild(&f, "nw_tos=", w & OFPFW_NW_TOS, verbosity,
714 if (om->nw_proto == IP_TYPE_ICMP) {
715 print_wild(&f, "icmp_type=", w & OFPFW_ICMP_TYPE, verbosity,
716 "%d", ntohs(om->icmp_type));
717 print_wild(&f, "icmp_code=", w & OFPFW_ICMP_CODE, verbosity,
718 "%d", ntohs(om->icmp_code));
720 print_wild(&f, "tp_src=", w & OFPFW_TP_SRC, verbosity,
721 "%d", ntohs(om->tp_src));
722 print_wild(&f, "tp_dst=", w & OFPFW_TP_DST, verbosity,
723 "%d", ntohs(om->tp_dst));
728 /* Pretty-print the OFPT_FLOW_MOD packet of 'len' bytes at 'oh' to 'string'
729 * at the given 'verbosity' level. */
731 ofp_print_flow_mod(struct ds *string, const void *oh, size_t len,
734 const struct ofp_flow_mod *ofm = oh;
736 ofp_print_match(string, &ofm->match, verbosity);
737 switch (ntohs(ofm->command)) {
739 ds_put_cstr(string, " ADD: ");
742 ds_put_cstr(string, " MOD: ");
744 case OFPFC_MODIFY_STRICT:
745 ds_put_cstr(string, " MOD_STRICT: ");
748 ds_put_cstr(string, " DEL: ");
750 case OFPFC_DELETE_STRICT:
751 ds_put_cstr(string, " DEL_STRICT: ");
754 ds_put_format(string, " cmd:%d ", ntohs(ofm->command));
756 ds_put_format(string, "cookie:0x%"PRIx64" idle:%d hard:%d pri:%d "
757 "buf:%#x flags:%"PRIx16" ", ntohll(ofm->cookie),
758 ntohs(ofm->idle_timeout), ntohs(ofm->hard_timeout),
759 ofm->match.wildcards ? ntohs(ofm->priority) : (uint16_t)-1,
760 ntohl(ofm->buffer_id), ntohs(ofm->flags));
761 ofp_print_actions(string, ofm->actions,
762 len - offsetof(struct ofp_flow_mod, actions));
763 ds_put_char(string, '\n');
766 /* Pretty-print the OFPT_FLOW_REMOVED packet of 'len' bytes at 'oh' to 'string'
767 * at the given 'verbosity' level. */
769 ofp_print_flow_removed(struct ds *string, const void *oh,
770 size_t len OVS_UNUSED, int verbosity)
772 const struct ofp_flow_removed *ofr = oh;
774 ofp_print_match(string, &ofr->match, verbosity);
775 ds_put_cstr(string, " reason=");
776 switch (ofr->reason) {
777 case OFPRR_IDLE_TIMEOUT:
778 ds_put_cstr(string, "idle");
780 case OFPRR_HARD_TIMEOUT:
781 ds_put_cstr(string, "hard");
784 ds_put_cstr(string, "delete");
787 ds_put_format(string, "**%"PRIu8"**", ofr->reason);
790 ds_put_format(string,
791 " cookie0x%"PRIx64" pri%"PRIu16" secs%"PRIu32" nsecs%"PRIu32
792 " idle%"PRIu16" pkts%"PRIu64" bytes%"PRIu64"\n",
794 ofr->match.wildcards ? ntohs(ofr->priority) : (uint16_t)-1,
795 ntohl(ofr->duration_sec), ntohl(ofr->duration_nsec),
796 ntohs(ofr->idle_timeout), ntohll(ofr->packet_count),
797 ntohll(ofr->byte_count));
801 ofp_print_port_mod(struct ds *string, const void *oh, size_t len OVS_UNUSED,
802 int verbosity OVS_UNUSED)
804 const struct ofp_port_mod *opm = oh;
806 ds_put_format(string, "port: %d: addr:"ETH_ADDR_FMT", config: %#x, mask:%#x\n",
807 ntohs(opm->port_no), ETH_ADDR_ARGS(opm->hw_addr),
808 ntohl(opm->config), ntohl(opm->mask));
809 ds_put_format(string, " advertise: ");
810 if (opm->advertise) {
811 ofp_print_port_features(string, ntohl(opm->advertise));
813 ds_put_format(string, "UNCHANGED\n");
823 static const struct error_type error_types[] = {
824 #define ERROR_TYPE(TYPE) {TYPE, -1, #TYPE}
825 #define ERROR_CODE(TYPE, CODE) {TYPE, CODE, #CODE}
826 ERROR_TYPE(OFPET_HELLO_FAILED),
827 ERROR_CODE(OFPET_HELLO_FAILED, OFPHFC_INCOMPATIBLE),
828 ERROR_CODE(OFPET_HELLO_FAILED, OFPHFC_EPERM),
830 ERROR_TYPE(OFPET_BAD_REQUEST),
831 ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_VERSION),
832 ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_TYPE),
833 ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_STAT),
834 ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_VENDOR),
835 ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_SUBTYPE),
836 ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_EPERM),
837 ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BAD_LEN),
838 ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BUFFER_EMPTY),
839 ERROR_CODE(OFPET_BAD_REQUEST, OFPBRC_BUFFER_UNKNOWN),
841 ERROR_TYPE(OFPET_BAD_ACTION),
842 ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_TYPE),
843 ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_LEN),
844 ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_VENDOR),
845 ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_VENDOR_TYPE),
846 ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_OUT_PORT),
847 ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_BAD_ARGUMENT),
848 ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_EPERM),
849 ERROR_CODE(OFPET_BAD_ACTION, OFPBAC_TOO_MANY),
851 ERROR_TYPE(OFPET_FLOW_MOD_FAILED),
852 ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_ALL_TABLES_FULL),
853 ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_OVERLAP),
854 ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_EPERM),
855 ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_BAD_EMERG_TIMEOUT),
856 ERROR_CODE(OFPET_FLOW_MOD_FAILED, OFPFMFC_BAD_COMMAND),
858 ERROR_TYPE(OFPET_PORT_MOD_FAILED),
859 ERROR_CODE(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_PORT),
860 ERROR_CODE(OFPET_PORT_MOD_FAILED, OFPPMFC_BAD_HW_ADDR)
862 #define N_ERROR_TYPES ARRAY_SIZE(error_types)
865 lookup_error_type(int type)
867 const struct error_type *t;
869 for (t = error_types; t < &error_types[N_ERROR_TYPES]; t++) {
870 if (t->type == type && t->code == -1) {
878 lookup_error_code(int type, int code)
880 const struct error_type *t;
882 for (t = error_types; t < &error_types[N_ERROR_TYPES]; t++) {
883 if (t->type == type && t->code == code) {
890 /* Pretty-print the OFPT_ERROR packet of 'len' bytes at 'oh' to 'string'
891 * at the given 'verbosity' level. */
893 ofp_print_error_msg(struct ds *string, const void *oh, size_t len,
894 int verbosity OVS_UNUSED)
896 const struct ofp_error_msg *oem = oh;
897 int type = ntohs(oem->type);
898 int code = ntohs(oem->code);
901 ds_put_format(string, " type%d(%s) code%d(%s) payload:\n",
902 type, lookup_error_type(type),
903 code, lookup_error_code(type, code));
906 case OFPET_HELLO_FAILED:
907 ds_put_printable(string, (char *) oem->data, len - sizeof *oem);
910 case OFPET_BAD_REQUEST:
911 s = ofp_to_string(oem->data, len - sizeof *oem, 1);
912 ds_put_cstr(string, s);
917 ds_put_hex_dump(string, oem->data, len - sizeof *oem, 0, true);
922 /* Pretty-print the OFPT_PORT_STATUS packet of 'len' bytes at 'oh' to 'string'
923 * at the given 'verbosity' level. */
925 ofp_print_port_status(struct ds *string, const void *oh, size_t len OVS_UNUSED,
926 int verbosity OVS_UNUSED)
928 const struct ofp_port_status *ops = oh;
930 if (ops->reason == OFPPR_ADD) {
931 ds_put_format(string, " ADD:");
932 } else if (ops->reason == OFPPR_DELETE) {
933 ds_put_format(string, " DEL:");
934 } else if (ops->reason == OFPPR_MODIFY) {
935 ds_put_format(string, " MOD:");
938 ofp_print_phy_port(string, &ops->desc);
942 ofp_desc_stats_reply(struct ds *string, const void *body,
943 size_t len OVS_UNUSED, int verbosity OVS_UNUSED)
945 const struct ofp_desc_stats *ods = body;
947 ds_put_format(string, "Manufacturer: %.*s\n",
948 (int) sizeof ods->mfr_desc, ods->mfr_desc);
949 ds_put_format(string, "Hardware: %.*s\n",
950 (int) sizeof ods->hw_desc, ods->hw_desc);
951 ds_put_format(string, "Software: %.*s\n",
952 (int) sizeof ods->sw_desc, ods->sw_desc);
953 ds_put_format(string, "Serial Num: %.*s\n",
954 (int) sizeof ods->serial_num, ods->serial_num);
955 ds_put_format(string, "DP Description: %.*s\n",
956 (int) sizeof ods->dp_desc, ods->dp_desc);
960 ofp_flow_stats_request(struct ds *string, const void *oh,
961 size_t len OVS_UNUSED, int verbosity)
963 const struct ofp_flow_stats_request *fsr = oh;
965 if (fsr->table_id == 0xff) {
966 ds_put_format(string, " table_id=any, ");
968 ds_put_format(string, " table_id=%"PRIu8", ", fsr->table_id);
971 ofp_print_match(string, &fsr->match, verbosity);
975 ofp_flow_stats_reply(struct ds *string, const void *body_, size_t len,
978 const char *body = body_;
979 const char *pos = body;
981 const struct ofp_flow_stats *fs;
982 ptrdiff_t bytes_left = body + len - pos;
985 if (bytes_left < sizeof *fs) {
986 if (bytes_left != 0) {
987 ds_put_format(string, " ***%td leftover bytes at end***",
993 fs = (const void *) pos;
994 length = ntohs(fs->length);
995 if (length < sizeof *fs) {
996 ds_put_format(string, " ***length=%zu shorter than minimum %zu***",
999 } else if (length > bytes_left) {
1000 ds_put_format(string,
1001 " ***length=%zu but only %td bytes left***",
1002 length, bytes_left);
1004 } else if ((length - sizeof *fs) % sizeof fs->actions[0]) {
1005 ds_put_format(string,
1006 " ***length=%zu has %zu bytes leftover in "
1009 (length - sizeof *fs) % sizeof fs->actions[0]);
1013 ds_put_format(string, " cookie=0x%"PRIx64", ", ntohll(fs->cookie));
1014 ds_put_format(string, "duration_sec=%"PRIu32"s, ",
1015 ntohl(fs->duration_sec));
1016 ds_put_format(string, "duration_nsec=%"PRIu32"ns, ",
1017 ntohl(fs->duration_nsec));
1018 ds_put_format(string, "table_id=%"PRIu8", ", fs->table_id);
1019 ds_put_format(string, "priority=%"PRIu16", ",
1020 fs->match.wildcards ? ntohs(fs->priority) : (uint16_t)-1);
1021 ds_put_format(string, "n_packets=%"PRIu64", ",
1022 ntohll(fs->packet_count));
1023 ds_put_format(string, "n_bytes=%"PRIu64", ", ntohll(fs->byte_count));
1024 if (fs->idle_timeout != htons(OFP_FLOW_PERMANENT)) {
1025 ds_put_format(string, "idle_timeout=%"PRIu16",",
1026 ntohs(fs->idle_timeout));
1028 if (fs->hard_timeout != htons(OFP_FLOW_PERMANENT)) {
1029 ds_put_format(string, "hard_timeout=%"PRIu16",",
1030 ntohs(fs->hard_timeout));
1032 ofp_print_match(string, &fs->match, verbosity);
1033 ofp_print_actions(string, fs->actions, length - sizeof *fs);
1034 ds_put_char(string, '\n');
1041 ofp_aggregate_stats_request(struct ds *string, const void *oh,
1042 size_t len OVS_UNUSED, int verbosity)
1044 const struct ofp_aggregate_stats_request *asr = oh;
1046 if (asr->table_id == 0xff) {
1047 ds_put_format(string, " table_id=any, ");
1049 ds_put_format(string, " table_id=%"PRIu8", ", asr->table_id);
1052 ofp_print_match(string, &asr->match, verbosity);
1056 ofp_aggregate_stats_reply(struct ds *string, const void *body_,
1057 size_t len OVS_UNUSED, int verbosity OVS_UNUSED)
1059 const struct ofp_aggregate_stats_reply *asr = body_;
1061 ds_put_format(string, " packet_count=%"PRIu64, ntohll(asr->packet_count));
1062 ds_put_format(string, " byte_count=%"PRIu64, ntohll(asr->byte_count));
1063 ds_put_format(string, " flow_count=%"PRIu32, ntohl(asr->flow_count));
1066 static void print_port_stat(struct ds *string, const char *leader,
1067 uint64_t stat, int more)
1069 ds_put_cstr(string, leader);
1071 ds_put_format(string, "%"PRIu64, stat);
1073 ds_put_char(string, '?');
1076 ds_put_cstr(string, ", ");
1078 ds_put_cstr(string, "\n");
1083 ofp_port_stats_request(struct ds *string, const void *body_,
1084 size_t len OVS_UNUSED, int verbosity OVS_UNUSED)
1086 const struct ofp_port_stats_request *psr = body_;
1087 ds_put_format(string, "port_no=%"PRIu16, ntohs(psr->port_no));
1091 ofp_port_stats_reply(struct ds *string, const void *body, size_t len,
1094 const struct ofp_port_stats *ps = body;
1095 size_t n = len / sizeof *ps;
1096 ds_put_format(string, " %zu ports\n", n);
1097 if (verbosity < 1) {
1102 ds_put_format(string, " port %2"PRIu16": ", ntohs(ps->port_no));
1104 ds_put_cstr(string, "rx ");
1105 print_port_stat(string, "pkts=", ntohll(ps->rx_packets), 1);
1106 print_port_stat(string, "bytes=", ntohll(ps->rx_bytes), 1);
1107 print_port_stat(string, "drop=", ntohll(ps->rx_dropped), 1);
1108 print_port_stat(string, "errs=", ntohll(ps->rx_errors), 1);
1109 print_port_stat(string, "frame=", ntohll(ps->rx_frame_err), 1);
1110 print_port_stat(string, "over=", ntohll(ps->rx_over_err), 1);
1111 print_port_stat(string, "crc=", ntohll(ps->rx_crc_err), 0);
1113 ds_put_cstr(string, " tx ");
1114 print_port_stat(string, "pkts=", ntohll(ps->tx_packets), 1);
1115 print_port_stat(string, "bytes=", ntohll(ps->tx_bytes), 1);
1116 print_port_stat(string, "drop=", ntohll(ps->tx_dropped), 1);
1117 print_port_stat(string, "errs=", ntohll(ps->tx_errors), 1);
1118 print_port_stat(string, "coll=", ntohll(ps->collisions), 0);
1123 ofp_table_stats_reply(struct ds *string, const void *body, size_t len,
1126 const struct ofp_table_stats *ts = body;
1127 size_t n = len / sizeof *ts;
1128 ds_put_format(string, " %zu tables\n", n);
1129 if (verbosity < 1) {
1134 char name[OFP_MAX_TABLE_NAME_LEN + 1];
1135 strncpy(name, ts->name, sizeof name);
1136 name[OFP_MAX_TABLE_NAME_LEN] = '\0';
1138 ds_put_format(string, " %d: %-8s: ", ts->table_id, name);
1139 ds_put_format(string, "wild=0x%05"PRIx32", ", ntohl(ts->wildcards));
1140 ds_put_format(string, "max=%6"PRIu32", ", ntohl(ts->max_entries));
1141 ds_put_format(string, "active=%"PRIu32"\n", ntohl(ts->active_count));
1142 ds_put_cstr(string, " ");
1143 ds_put_format(string, "lookup=%"PRIu64", ",
1144 ntohll(ts->lookup_count));
1145 ds_put_format(string, "matched=%"PRIu64"\n",
1146 ntohll(ts->matched_count));
1151 vendor_stat(struct ds *string, const void *body, size_t len,
1152 int verbosity OVS_UNUSED)
1154 ds_put_format(string, " vendor=%08"PRIx32, ntohl(*(uint32_t *) body));
1155 ds_put_format(string, " %zu bytes additional data",
1156 len - sizeof(uint32_t));
1159 enum stats_direction {
1165 print_stats(struct ds *string, int type, const void *body, size_t body_len,
1166 int verbosity, enum stats_direction direction)
1169 size_t min_body, max_body;
1170 void (*printer)(struct ds *, const void *, size_t len, int verbosity);
1176 struct stats_msg request;
1177 struct stats_msg reply;
1180 static const struct stats_type stats_types[] = {
1185 { 0, SIZE_MAX, ofp_desc_stats_reply },
1190 { sizeof(struct ofp_flow_stats_request),
1191 sizeof(struct ofp_flow_stats_request),
1192 ofp_flow_stats_request },
1193 { 0, SIZE_MAX, ofp_flow_stats_reply },
1198 { sizeof(struct ofp_aggregate_stats_request),
1199 sizeof(struct ofp_aggregate_stats_request),
1200 ofp_aggregate_stats_request },
1201 { sizeof(struct ofp_aggregate_stats_reply),
1202 sizeof(struct ofp_aggregate_stats_reply),
1203 ofp_aggregate_stats_reply },
1209 { 0, SIZE_MAX, ofp_table_stats_reply },
1214 { sizeof(struct ofp_port_stats_request),
1215 sizeof(struct ofp_port_stats_request),
1216 ofp_port_stats_request },
1217 { 0, SIZE_MAX, ofp_port_stats_reply },
1222 { sizeof(uint32_t), SIZE_MAX, vendor_stat },
1223 { sizeof(uint32_t), SIZE_MAX, vendor_stat },
1233 const struct stats_type *s;
1234 const struct stats_msg *m;
1236 if (type >= ARRAY_SIZE(stats_types) || !stats_types[type].name) {
1237 ds_put_format(string, " ***unknown type %d***", type);
1240 for (s = stats_types; s->type >= 0; s++) {
1241 if (s->type == type) {
1245 ds_put_format(string, " type=%d(%s)\n", type, s->name);
1247 m = direction == REQUEST ? &s->request : &s->reply;
1248 if (body_len < m->min_body || body_len > m->max_body) {
1249 ds_put_format(string, " ***body_len=%zu not in %zu...%zu***",
1250 body_len, m->min_body, m->max_body);
1254 m->printer(string, body, body_len, verbosity);
1259 ofp_stats_request(struct ds *string, const void *oh, size_t len, int verbosity)
1261 const struct ofp_stats_request *srq = oh;
1264 ds_put_format(string, " ***unknown flags 0x%04"PRIx16"***",
1268 print_stats(string, ntohs(srq->type), srq->body,
1269 len - offsetof(struct ofp_stats_request, body),
1270 verbosity, REQUEST);
1274 ofp_stats_reply(struct ds *string, const void *oh, size_t len, int verbosity)
1276 const struct ofp_stats_reply *srp = oh;
1278 ds_put_cstr(string, " flags=");
1280 ds_put_cstr(string, "none");
1282 uint16_t flags = ntohs(srp->flags);
1283 if (flags & OFPSF_REPLY_MORE) {
1284 ds_put_cstr(string, "[more]");
1285 flags &= ~OFPSF_REPLY_MORE;
1288 ds_put_format(string, "[***unknown flags 0x%04"PRIx16"***]", flags);
1292 print_stats(string, ntohs(srp->type), srp->body,
1293 len - offsetof(struct ofp_stats_reply, body),
1298 ofp_echo(struct ds *string, const void *oh, size_t len, int verbosity)
1300 const struct ofp_header *hdr = oh;
1302 ds_put_format(string, " %zu bytes of payload\n", len - sizeof *hdr);
1303 if (verbosity > 1) {
1304 ds_put_hex_dump(string, hdr, len - sizeof *hdr, 0, true);
1308 struct openflow_packet {
1312 void (*printer)(struct ds *, const void *, size_t len, int verbosity);
1315 static const struct openflow_packet packets[] = {
1319 sizeof (struct ofp_header),
1323 OFPT_FEATURES_REQUEST,
1325 sizeof (struct ofp_header),
1329 OFPT_FEATURES_REPLY,
1331 sizeof (struct ofp_switch_features),
1332 ofp_print_switch_features,
1335 OFPT_GET_CONFIG_REQUEST,
1336 "get_config_request",
1337 sizeof (struct ofp_header),
1341 OFPT_GET_CONFIG_REPLY,
1343 sizeof (struct ofp_switch_config),
1344 ofp_print_switch_config,
1349 sizeof (struct ofp_switch_config),
1350 ofp_print_switch_config,
1355 offsetof(struct ofp_packet_in, data),
1361 sizeof (struct ofp_packet_out),
1367 sizeof (struct ofp_flow_mod),
1373 sizeof (struct ofp_flow_removed),
1374 ofp_print_flow_removed,
1379 sizeof (struct ofp_port_mod),
1385 sizeof (struct ofp_port_status),
1386 ofp_print_port_status
1391 sizeof (struct ofp_error_msg),
1392 ofp_print_error_msg,
1397 sizeof (struct ofp_stats_request),
1403 sizeof (struct ofp_stats_reply),
1409 sizeof (struct ofp_header),
1415 sizeof (struct ofp_header),
1421 sizeof (struct ofp_vendor_header),
1425 OFPT_BARRIER_REQUEST,
1427 sizeof (struct ofp_header),
1433 sizeof (struct ofp_header),
1438 /* Composes and returns a string representing the OpenFlow packet of 'len'
1439 * bytes at 'oh' at the given 'verbosity' level. 0 is a minimal amount of
1440 * verbosity and higher numbers increase verbosity. The caller is responsible
1441 * for freeing the string. */
1443 ofp_to_string(const void *oh_, size_t len, int verbosity)
1445 struct ds string = DS_EMPTY_INITIALIZER;
1446 const struct ofp_header *oh = oh_;
1447 const struct openflow_packet *pkt;
1449 if (len < sizeof(struct ofp_header)) {
1450 ds_put_cstr(&string, "OpenFlow packet too short:\n");
1451 ds_put_hex_dump(&string, oh, len, 0, true);
1452 return ds_cstr(&string);
1453 } else if (oh->version != OFP_VERSION) {
1454 ds_put_format(&string, "Bad OpenFlow version %"PRIu8":\n", oh->version);
1455 ds_put_hex_dump(&string, oh, len, 0, true);
1456 return ds_cstr(&string);
1459 for (pkt = packets; ; pkt++) {
1460 if (pkt >= &packets[ARRAY_SIZE(packets)]) {
1461 ds_put_format(&string, "Unknown OpenFlow packet type %"PRIu8":\n",
1463 ds_put_hex_dump(&string, oh, len, 0, true);
1464 return ds_cstr(&string);
1465 } else if (oh->type == pkt->type) {
1470 ds_put_format(&string, "%s (xid=0x%"PRIx32"):", pkt->name, oh->xid);
1472 if (ntohs(oh->length) > len)
1473 ds_put_format(&string, " (***truncated to %zu bytes from %"PRIu16"***)",
1474 len, ntohs(oh->length));
1475 else if (ntohs(oh->length) < len) {
1476 ds_put_format(&string, " (***only uses %"PRIu16" bytes out of %zu***)\n",
1477 ntohs(oh->length), len);
1478 len = ntohs(oh->length);
1481 if (len < pkt->min_size) {
1482 ds_put_format(&string, " (***length=%zu < min_size=%zu***)\n",
1483 len, pkt->min_size);
1484 } else if (!pkt->printer) {
1485 if (len > sizeof *oh) {
1486 ds_put_format(&string, " length=%"PRIu16" (decoder not implemented)\n",
1490 pkt->printer(&string, oh, len, verbosity);
1492 if (verbosity >= 3) {
1493 ds_put_hex_dump(&string, oh, len, 0, true);
1495 if (string.string[string.length - 1] != '\n') {
1496 ds_put_char(&string, '\n');
1498 return ds_cstr(&string);
1501 /* Returns the name for the specified OpenFlow message type as a string,
1502 * e.g. "OFPT_FEATURES_REPLY". If no name is known, the string returned is a
1503 * hex number, e.g. "0x55".
1505 * The caller must free the returned string when it is no longer needed. */
1507 ofp_message_type_to_string(uint8_t type)
1509 struct ds s = DS_EMPTY_INITIALIZER;
1510 const struct openflow_packet *pkt;
1511 for (pkt = packets; ; pkt++) {
1512 if (pkt >= &packets[ARRAY_SIZE(packets)]) {
1513 ds_put_format(&s, "0x%02"PRIx8, type);
1515 } else if (type == pkt->type) {
1518 ds_put_cstr(&s, "OFPT_");
1519 for (p = pkt->name; *p; p++) {
1520 ds_put_char(&s, toupper((unsigned char) *p));
1529 print_and_free(FILE *stream, char *string)
1531 fputs(string, stream);
1535 /* Pretty-print the OpenFlow packet of 'len' bytes at 'oh' to 'stream' at the
1536 * given 'verbosity' level. 0 is a minimal amount of verbosity and higher
1537 * numbers increase verbosity. */
1539 ofp_print(FILE *stream, const void *oh, size_t len, int verbosity)
1541 print_and_free(stream, ofp_to_string(oh, len, verbosity));
1544 /* Dumps the contents of the Ethernet frame in the 'len' bytes starting at
1545 * 'data' to 'stream' using tcpdump. 'total_len' specifies the full length of
1546 * the Ethernet frame (of which 'len' bytes were captured).
1548 * This starts and kills a tcpdump subprocess so it's quite expensive. */
1550 ofp_print_packet(FILE *stream, const void *data, size_t len, size_t total_len)
1552 print_and_free(stream, ofp_packet_to_string(data, len, total_len));