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Merge branch 'master' into iproute2-next
[mirror_iproute2.git] / tc / f_flower.c
1 /*
2 * f_flower.c Flower Classifier
3 *
4 * This program is free software; you can distribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Jiri Pirko <jiri@resnulli.us>
10 */
11
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <unistd.h>
15 #include <string.h>
16 #include <net/if.h>
17 #include <linux/if_arp.h>
18 #include <linux/if_ether.h>
19 #include <linux/ip.h>
20 #include <linux/tc_act/tc_vlan.h>
21 #include <linux/mpls.h>
22
23 #include "utils.h"
24 #include "tc_util.h"
25 #include "rt_names.h"
26
27 enum flower_matching_flags {
28 FLOWER_IP_FLAGS,
29 };
30
31 enum flower_endpoint {
32 FLOWER_ENDPOINT_SRC,
33 FLOWER_ENDPOINT_DST
34 };
35
36 enum flower_icmp_field {
37 FLOWER_ICMP_FIELD_TYPE,
38 FLOWER_ICMP_FIELD_CODE
39 };
40
41 static void explain(void)
42 {
43 fprintf(stderr,
44 "Usage: ... flower [ MATCH-LIST ]\n"
45 " [ skip_sw | skip_hw ]\n"
46 " [ action ACTION-SPEC ] [ classid CLASSID ]\n"
47 "\n"
48 "Where: MATCH-LIST := [ MATCH-LIST ] MATCH\n"
49 " MATCH := { indev DEV-NAME |\n"
50 " vlan_id VID |\n"
51 " vlan_prio PRIORITY |\n"
52 " vlan_ethtype [ ipv4 | ipv6 | ETH-TYPE ] |\n"
53 " dst_mac MASKED-LLADDR |\n"
54 " src_mac MASKED-LLADDR |\n"
55 " ip_proto [tcp | udp | sctp | icmp | icmpv6 | IP-PROTO ] |\n"
56 " ip_tos MASKED-IP_TOS |\n"
57 " ip_ttl MASKED-IP_TTL |\n"
58 " mpls_label LABEL |\n"
59 " mpls_tc TC |\n"
60 " mpls_bos BOS |\n"
61 " mpls_ttl TTL |\n"
62 " dst_ip PREFIX |\n"
63 " src_ip PREFIX |\n"
64 " dst_port PORT-NUMBER |\n"
65 " src_port PORT-NUMBER |\n"
66 " tcp_flags MASKED-TCP_FLAGS |\n"
67 " type MASKED-ICMP-TYPE |\n"
68 " code MASKED-ICMP-CODE |\n"
69 " arp_tip IPV4-PREFIX |\n"
70 " arp_sip IPV4-PREFIX |\n"
71 " arp_op [ request | reply | OP ] |\n"
72 " arp_tha MASKED-LLADDR |\n"
73 " arp_sha MASKED-LLADDR |\n"
74 " enc_dst_ip [ IPV4-ADDR | IPV6-ADDR ] |\n"
75 " enc_src_ip [ IPV4-ADDR | IPV6-ADDR ] |\n"
76 " enc_key_id [ KEY-ID ] |\n"
77 " ip_flags IP-FLAGS | \n"
78 " enc_dst_port [ port_number ] }\n"
79 " FILTERID := X:Y:Z\n"
80 " MASKED_LLADDR := { LLADDR | LLADDR/MASK | LLADDR/BITS }\n"
81 " ACTION-SPEC := ... look at individual actions\n"
82 "\n"
83 "NOTE: CLASSID, IP-PROTO are parsed as hexadecimal input.\n"
84 "NOTE: There can be only used one mask per one prio. If user needs\n"
85 " to specify different mask, he has to use different prio.\n");
86 }
87
88 static int flower_parse_eth_addr(char *str, int addr_type, int mask_type,
89 struct nlmsghdr *n)
90 {
91 int ret, err = -1;
92 char addr[ETH_ALEN], *slash;
93
94 slash = strchr(str, '/');
95 if (slash)
96 *slash = '\0';
97
98 ret = ll_addr_a2n(addr, sizeof(addr), str);
99 if (ret < 0)
100 goto err;
101 addattr_l(n, MAX_MSG, addr_type, addr, sizeof(addr));
102
103 if (slash) {
104 unsigned bits;
105
106 if (!get_unsigned(&bits, slash + 1, 10)) {
107 uint64_t mask;
108
109 /* Extra 16 bit shift to push mac address into
110 * high bits of uint64_t
111 */
112 mask = htonll(0xffffffffffffULL << (16 + 48 - bits));
113 memcpy(addr, &mask, ETH_ALEN);
114 } else {
115 ret = ll_addr_a2n(addr, sizeof(addr), slash + 1);
116 if (ret < 0)
117 goto err;
118 }
119 } else {
120 memset(addr, 0xff, ETH_ALEN);
121 }
122 addattr_l(n, MAX_MSG, mask_type, addr, sizeof(addr));
123
124 err = 0;
125 err:
126 if (slash)
127 *slash = '/';
128 return err;
129 }
130
131 static int flower_parse_vlan_eth_type(char *str, __be16 eth_type, int type,
132 __be16 *p_vlan_eth_type,
133 struct nlmsghdr *n)
134 {
135 __be16 vlan_eth_type;
136
137 if (eth_type != htons(ETH_P_8021Q)) {
138 fprintf(stderr,
139 "Can't set \"vlan_ethtype\" if ethertype isn't 802.1Q\n");
140 return -1;
141 }
142
143 if (ll_proto_a2n(&vlan_eth_type, str))
144 invarg("invalid vlan_ethtype", str);
145 addattr16(n, MAX_MSG, type, vlan_eth_type);
146 *p_vlan_eth_type = vlan_eth_type;
147 return 0;
148 }
149
150 struct flag_to_string {
151 int flag;
152 enum flower_matching_flags type;
153 char *string;
154 };
155
156 static struct flag_to_string flags_str[] = {
157 { TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOWER_IP_FLAGS, "frag" },
158 { TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST, FLOWER_IP_FLAGS, "firstfrag" },
159 };
160
161 static int flower_parse_matching_flags(char *str,
162 enum flower_matching_flags type,
163 __u32 *mtf, __u32 *mtf_mask)
164 {
165 char *token;
166 bool no;
167 bool found;
168 int i;
169
170 token = strtok(str, "/");
171
172 while (token) {
173 if (!strncmp(token, "no", 2)) {
174 no = true;
175 token += 2;
176 } else
177 no = false;
178
179 found = false;
180 for (i = 0; i < ARRAY_SIZE(flags_str); i++) {
181 if (type != flags_str[i].type)
182 continue;
183
184 if (!strcmp(token, flags_str[i].string)) {
185 if (no)
186 *mtf &= ~flags_str[i].flag;
187 else
188 *mtf |= flags_str[i].flag;
189
190 *mtf_mask |= flags_str[i].flag;
191 found = true;
192 break;
193 }
194 }
195 if (!found)
196 return -1;
197
198 token = strtok(NULL, "/");
199 }
200
201 return 0;
202 }
203
204 static int flower_parse_ip_proto(char *str, __be16 eth_type, int type,
205 __u8 *p_ip_proto, struct nlmsghdr *n)
206 {
207 int ret;
208 __u8 ip_proto;
209
210 if (eth_type != htons(ETH_P_IP) && eth_type != htons(ETH_P_IPV6))
211 goto err;
212
213 if (matches(str, "tcp") == 0) {
214 ip_proto = IPPROTO_TCP;
215 } else if (matches(str, "udp") == 0) {
216 ip_proto = IPPROTO_UDP;
217 } else if (matches(str, "sctp") == 0) {
218 ip_proto = IPPROTO_SCTP;
219 } else if (matches(str, "icmp") == 0) {
220 if (eth_type != htons(ETH_P_IP))
221 goto err;
222 ip_proto = IPPROTO_ICMP;
223 } else if (matches(str, "icmpv6") == 0) {
224 if (eth_type != htons(ETH_P_IPV6))
225 goto err;
226 ip_proto = IPPROTO_ICMPV6;
227 } else {
228 ret = get_u8(&ip_proto, str, 16);
229 if (ret)
230 return -1;
231 }
232 addattr8(n, MAX_MSG, type, ip_proto);
233 *p_ip_proto = ip_proto;
234 return 0;
235
236 err:
237 fprintf(stderr, "Illegal \"eth_type\" for ip proto\n");
238 return -1;
239 }
240
241 static int __flower_parse_ip_addr(char *str, int family,
242 int addr4_type, int mask4_type,
243 int addr6_type, int mask6_type,
244 struct nlmsghdr *n)
245 {
246 int ret;
247 inet_prefix addr;
248 int bits;
249 int i;
250
251 ret = get_prefix(&addr, str, family);
252 if (ret)
253 return -1;
254
255 if (family && (addr.family != family)) {
256 fprintf(stderr, "Illegal \"eth_type\" for ip address\n");
257 return -1;
258 }
259
260 addattr_l(n, MAX_MSG, addr.family == AF_INET ? addr4_type : addr6_type,
261 addr.data, addr.bytelen);
262
263 memset(addr.data, 0xff, addr.bytelen);
264 bits = addr.bitlen;
265 for (i = 0; i < addr.bytelen / 4; i++) {
266 if (!bits) {
267 addr.data[i] = 0;
268 } else if (bits / 32 >= 1) {
269 bits -= 32;
270 } else {
271 addr.data[i] <<= 32 - bits;
272 addr.data[i] = htonl(addr.data[i]);
273 bits = 0;
274 }
275 }
276
277 addattr_l(n, MAX_MSG, addr.family == AF_INET ? mask4_type : mask6_type,
278 addr.data, addr.bytelen);
279
280 return 0;
281 }
282
283 static int flower_parse_ip_addr(char *str, __be16 eth_type,
284 int addr4_type, int mask4_type,
285 int addr6_type, int mask6_type,
286 struct nlmsghdr *n)
287 {
288 int family;
289
290 if (eth_type == htons(ETH_P_IP)) {
291 family = AF_INET;
292 } else if (eth_type == htons(ETH_P_IPV6)) {
293 family = AF_INET6;
294 } else if (!eth_type) {
295 family = AF_UNSPEC;
296 } else {
297 return -1;
298 }
299
300 return __flower_parse_ip_addr(str, family, addr4_type, mask4_type,
301 addr6_type, mask6_type, n);
302 }
303
304 static bool flower_eth_type_arp(__be16 eth_type)
305 {
306 return eth_type == htons(ETH_P_ARP) || eth_type == htons(ETH_P_RARP);
307 }
308
309 static int flower_parse_arp_ip_addr(char *str, __be16 eth_type,
310 int addr_type, int mask_type,
311 struct nlmsghdr *n)
312 {
313 if (!flower_eth_type_arp(eth_type))
314 return -1;
315
316 return __flower_parse_ip_addr(str, AF_INET, addr_type, mask_type,
317 TCA_FLOWER_UNSPEC, TCA_FLOWER_UNSPEC, n);
318 }
319
320 static int flower_parse_u8(char *str, int value_type, int mask_type,
321 int (*value_from_name)(const char *str,
322 __u8 *value),
323 bool (*value_validate)(__u8 value),
324 struct nlmsghdr *n)
325 {
326 char *slash;
327 int ret, err = -1;
328 __u8 value, mask;
329
330 slash = strchr(str, '/');
331 if (slash)
332 *slash = '\0';
333
334 ret = value_from_name ? value_from_name(str, &value) : -1;
335 if (ret < 0) {
336 ret = get_u8(&value, str, 10);
337 if (ret)
338 goto err;
339 }
340
341 if (value_validate && !value_validate(value))
342 goto err;
343
344 if (slash) {
345 ret = get_u8(&mask, slash + 1, 10);
346 if (ret)
347 goto err;
348 }
349 else {
350 mask = UINT8_MAX;
351 }
352
353 addattr8(n, MAX_MSG, value_type, value);
354 addattr8(n, MAX_MSG, mask_type, mask);
355
356 err = 0;
357 err:
358 if (slash)
359 *slash = '/';
360 return err;
361 }
362
363 static const char *flower_print_arp_op_to_name(__u8 op)
364 {
365 switch (op) {
366 case ARPOP_REQUEST:
367 return "request";
368 case ARPOP_REPLY:
369 return "reply";
370 default:
371 return NULL;
372 }
373 }
374
375 static int flower_arp_op_from_name(const char *name, __u8 *op)
376 {
377 if (!strcmp(name, "request"))
378 *op = ARPOP_REQUEST;
379 else if (!strcmp(name, "reply"))
380 *op = ARPOP_REPLY;
381 else
382 return -1;
383
384 return 0;
385 }
386
387 static bool flow_arp_op_validate(__u8 op)
388 {
389 return !op || op == ARPOP_REQUEST || op == ARPOP_REPLY;
390 }
391
392 static int flower_parse_arp_op(char *str, __be16 eth_type,
393 int op_type, int mask_type,
394 struct nlmsghdr *n)
395 {
396 if (!flower_eth_type_arp(eth_type))
397 return -1;
398
399 return flower_parse_u8(str, op_type, mask_type, flower_arp_op_from_name,
400 flow_arp_op_validate, n);
401 }
402
403 static int flower_icmp_attr_type(__be16 eth_type, __u8 ip_proto,
404 enum flower_icmp_field field)
405 {
406 if (eth_type == htons(ETH_P_IP) && ip_proto == IPPROTO_ICMP)
407 return field == FLOWER_ICMP_FIELD_CODE ?
408 TCA_FLOWER_KEY_ICMPV4_CODE :
409 TCA_FLOWER_KEY_ICMPV4_TYPE;
410 else if (eth_type == htons(ETH_P_IPV6) && ip_proto == IPPROTO_ICMPV6)
411 return field == FLOWER_ICMP_FIELD_CODE ?
412 TCA_FLOWER_KEY_ICMPV6_CODE :
413 TCA_FLOWER_KEY_ICMPV6_TYPE;
414
415 return -1;
416 }
417
418 static int flower_icmp_attr_mask_type(__be16 eth_type, __u8 ip_proto,
419 enum flower_icmp_field field)
420 {
421 if (eth_type == htons(ETH_P_IP) && ip_proto == IPPROTO_ICMP)
422 return field == FLOWER_ICMP_FIELD_CODE ?
423 TCA_FLOWER_KEY_ICMPV4_CODE_MASK :
424 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK;
425 else if (eth_type == htons(ETH_P_IPV6) && ip_proto == IPPROTO_ICMPV6)
426 return field == FLOWER_ICMP_FIELD_CODE ?
427 TCA_FLOWER_KEY_ICMPV6_CODE_MASK :
428 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK;
429
430 return -1;
431 }
432
433 static int flower_parse_icmp(char *str, __u16 eth_type, __u8 ip_proto,
434 enum flower_icmp_field field, struct nlmsghdr *n)
435 {
436 int value_type, mask_type;
437
438 value_type = flower_icmp_attr_type(eth_type, ip_proto, field);
439 mask_type = flower_icmp_attr_mask_type(eth_type, ip_proto, field);
440 if (value_type < 0 || mask_type < 0)
441 return -1;
442
443 return flower_parse_u8(str, value_type, mask_type, NULL, NULL, n);
444 }
445
446 static int flower_port_attr_type(__u8 ip_proto, enum flower_endpoint endpoint)
447 {
448 if (ip_proto == IPPROTO_TCP)
449 return endpoint == FLOWER_ENDPOINT_SRC ?
450 TCA_FLOWER_KEY_TCP_SRC :
451 TCA_FLOWER_KEY_TCP_DST;
452 else if (ip_proto == IPPROTO_UDP)
453 return endpoint == FLOWER_ENDPOINT_SRC ?
454 TCA_FLOWER_KEY_UDP_SRC :
455 TCA_FLOWER_KEY_UDP_DST;
456 else if (ip_proto == IPPROTO_SCTP)
457 return endpoint == FLOWER_ENDPOINT_SRC ?
458 TCA_FLOWER_KEY_SCTP_SRC :
459 TCA_FLOWER_KEY_SCTP_DST;
460 else
461 return -1;
462 }
463
464 static int flower_parse_port(char *str, __u8 ip_proto,
465 enum flower_endpoint endpoint,
466 struct nlmsghdr *n)
467 {
468 int ret;
469 int type;
470 __be16 port;
471
472 type = flower_port_attr_type(ip_proto, endpoint);
473 if (type < 0)
474 return -1;
475
476 ret = get_be16(&port, str, 10);
477 if (ret)
478 return -1;
479
480 addattr16(n, MAX_MSG, type, port);
481
482 return 0;
483 }
484
485 #define TCP_FLAGS_MAX_MASK 0xfff
486
487 static int flower_parse_tcp_flags(char *str, int flags_type, int mask_type,
488 struct nlmsghdr *n)
489 {
490 char *slash;
491 int ret, err = -1;
492 __u16 flags;
493
494 slash = strchr(str, '/');
495 if (slash)
496 *slash = '\0';
497
498 ret = get_u16(&flags, str, 16);
499 if (ret < 0 || flags & ~TCP_FLAGS_MAX_MASK)
500 goto err;
501
502 addattr16(n, MAX_MSG, flags_type, htons(flags));
503
504 if (slash) {
505 ret = get_u16(&flags, slash + 1, 16);
506 if (ret < 0 || flags & ~TCP_FLAGS_MAX_MASK)
507 goto err;
508 } else {
509 flags = TCP_FLAGS_MAX_MASK;
510 }
511 addattr16(n, MAX_MSG, mask_type, htons(flags));
512
513 err = 0;
514 err:
515 if (slash)
516 *slash = '/';
517 return err;
518 }
519
520 static int flower_parse_ip_tos_ttl(char *str, int key_type, int mask_type,
521 struct nlmsghdr *n)
522 {
523 char *slash;
524 int ret, err = -1;
525 __u8 tos_ttl;
526
527 slash = strchr(str, '/');
528 if (slash)
529 *slash = '\0';
530
531 ret = get_u8(&tos_ttl, str, 10);
532 if (ret < 0)
533 ret = get_u8(&tos_ttl, str, 16);
534 if (ret < 0)
535 goto err;
536
537 addattr8(n, MAX_MSG, key_type, tos_ttl);
538
539 if (slash) {
540 ret = get_u8(&tos_ttl, slash + 1, 16);
541 if (ret < 0)
542 goto err;
543 } else {
544 tos_ttl = 0xff;
545 }
546 addattr8(n, MAX_MSG, mask_type, tos_ttl);
547
548 err = 0;
549 err:
550 if (slash)
551 *slash = '/';
552 return err;
553 }
554
555 static int flower_parse_key_id(const char *str, int type, struct nlmsghdr *n)
556 {
557 int ret;
558 __be32 key_id;
559
560 ret = get_be32(&key_id, str, 10);
561 if (!ret)
562 addattr32(n, MAX_MSG, type, key_id);
563
564 return ret;
565 }
566
567 static int flower_parse_enc_port(char *str, int type, struct nlmsghdr *n)
568 {
569 int ret;
570 __be16 port;
571
572 ret = get_be16(&port, str, 10);
573 if (ret)
574 return -1;
575
576 addattr16(n, MAX_MSG, type, port);
577
578 return 0;
579 }
580
581 static int flower_parse_opt(struct filter_util *qu, char *handle,
582 int argc, char **argv, struct nlmsghdr *n)
583 {
584 int ret;
585 struct tcmsg *t = NLMSG_DATA(n);
586 struct rtattr *tail;
587 __be16 eth_type = TC_H_MIN(t->tcm_info);
588 __be16 vlan_ethtype = 0;
589 __u8 ip_proto = 0xff;
590 __u32 flags = 0;
591 __u32 mtf = 0;
592 __u32 mtf_mask = 0;
593
594 if (handle) {
595 ret = get_u32(&t->tcm_handle, handle, 0);
596 if (ret) {
597 fprintf(stderr, "Illegal \"handle\"\n");
598 return -1;
599 }
600 }
601
602 tail = (struct rtattr *) (((void *) n) + NLMSG_ALIGN(n->nlmsg_len));
603 addattr_l(n, MAX_MSG, TCA_OPTIONS, NULL, 0);
604
605 if (argc == 0) {
606 /*at minimal we will match all ethertype packets */
607 goto parse_done;
608 }
609
610 while (argc > 0) {
611 if (matches(*argv, "classid") == 0 ||
612 matches(*argv, "flowid") == 0) {
613 unsigned int handle;
614
615 NEXT_ARG();
616 ret = get_tc_classid(&handle, *argv);
617 if (ret) {
618 fprintf(stderr, "Illegal \"classid\"\n");
619 return -1;
620 }
621 addattr_l(n, MAX_MSG, TCA_FLOWER_CLASSID, &handle, 4);
622 } else if (matches(*argv, "hw_tc") == 0) {
623 unsigned int handle;
624 __u32 tc;
625 char *end;
626
627 NEXT_ARG();
628 tc = strtoul(*argv, &end, 0);
629 if (*end) {
630 fprintf(stderr, "Illegal TC index\n");
631 return -1;
632 }
633 if (tc >= TC_QOPT_MAX_QUEUE) {
634 fprintf(stderr, "TC index exceeds max range\n");
635 return -1;
636 }
637 handle = TC_H_MAKE(TC_H_MAJ(t->tcm_parent),
638 TC_H_MIN(tc + TC_H_MIN_PRIORITY));
639 addattr_l(n, MAX_MSG, TCA_FLOWER_CLASSID, &handle,
640 sizeof(handle));
641 } else if (matches(*argv, "ip_flags") == 0) {
642 NEXT_ARG();
643 ret = flower_parse_matching_flags(*argv,
644 FLOWER_IP_FLAGS,
645 &mtf,
646 &mtf_mask);
647 if (ret < 0) {
648 fprintf(stderr, "Illegal \"ip_flags\"\n");
649 return -1;
650 }
651 } else if (matches(*argv, "skip_hw") == 0) {
652 flags |= TCA_CLS_FLAGS_SKIP_HW;
653 } else if (matches(*argv, "skip_sw") == 0) {
654 flags |= TCA_CLS_FLAGS_SKIP_SW;
655 } else if (matches(*argv, "indev") == 0) {
656 NEXT_ARG();
657 if (check_ifname(*argv))
658 invarg("\"indev\" not a valid ifname", *argv);
659 addattrstrz(n, MAX_MSG, TCA_FLOWER_INDEV, *argv);
660 } else if (matches(*argv, "vlan_id") == 0) {
661 __u16 vid;
662
663 NEXT_ARG();
664 if (eth_type != htons(ETH_P_8021Q)) {
665 fprintf(stderr,
666 "Can't set \"vlan_id\" if ethertype isn't 802.1Q\n");
667 return -1;
668 }
669 ret = get_u16(&vid, *argv, 10);
670 if (ret < 0 || vid & ~0xfff) {
671 fprintf(stderr, "Illegal \"vlan_id\"\n");
672 return -1;
673 }
674 addattr16(n, MAX_MSG, TCA_FLOWER_KEY_VLAN_ID, vid);
675 } else if (matches(*argv, "vlan_prio") == 0) {
676 __u8 vlan_prio;
677
678 NEXT_ARG();
679 if (eth_type != htons(ETH_P_8021Q)) {
680 fprintf(stderr,
681 "Can't set \"vlan_prio\" if ethertype isn't 802.1Q\n");
682 return -1;
683 }
684 ret = get_u8(&vlan_prio, *argv, 10);
685 if (ret < 0 || vlan_prio & ~0x7) {
686 fprintf(stderr, "Illegal \"vlan_prio\"\n");
687 return -1;
688 }
689 addattr8(n, MAX_MSG,
690 TCA_FLOWER_KEY_VLAN_PRIO, vlan_prio);
691 } else if (matches(*argv, "vlan_ethtype") == 0) {
692 NEXT_ARG();
693 ret = flower_parse_vlan_eth_type(*argv, eth_type,
694 TCA_FLOWER_KEY_VLAN_ETH_TYPE,
695 &vlan_ethtype, n);
696 if (ret < 0)
697 return -1;
698 } else if (matches(*argv, "mpls_label") == 0) {
699 __u32 label;
700
701 NEXT_ARG();
702 if (eth_type != htons(ETH_P_MPLS_UC) &&
703 eth_type != htons(ETH_P_MPLS_MC)) {
704 fprintf(stderr,
705 "Can't set \"mpls_label\" if ethertype isn't MPLS\n");
706 return -1;
707 }
708 ret = get_u32(&label, *argv, 10);
709 if (ret < 0 || label & ~(MPLS_LS_LABEL_MASK >> MPLS_LS_LABEL_SHIFT)) {
710 fprintf(stderr, "Illegal \"mpls_label\"\n");
711 return -1;
712 }
713 addattr32(n, MAX_MSG, TCA_FLOWER_KEY_MPLS_LABEL, label);
714 } else if (matches(*argv, "mpls_tc") == 0) {
715 __u8 tc;
716
717 NEXT_ARG();
718 if (eth_type != htons(ETH_P_MPLS_UC) &&
719 eth_type != htons(ETH_P_MPLS_MC)) {
720 fprintf(stderr,
721 "Can't set \"mpls_tc\" if ethertype isn't MPLS\n");
722 return -1;
723 }
724 ret = get_u8(&tc, *argv, 10);
725 if (ret < 0 || tc & ~(MPLS_LS_TC_MASK >> MPLS_LS_TC_SHIFT)) {
726 fprintf(stderr, "Illegal \"mpls_tc\"\n");
727 return -1;
728 }
729 addattr8(n, MAX_MSG, TCA_FLOWER_KEY_MPLS_TC, tc);
730 } else if (matches(*argv, "mpls_bos") == 0) {
731 __u8 bos;
732
733 NEXT_ARG();
734 if (eth_type != htons(ETH_P_MPLS_UC) &&
735 eth_type != htons(ETH_P_MPLS_MC)) {
736 fprintf(stderr,
737 "Can't set \"mpls_bos\" if ethertype isn't MPLS\n");
738 return -1;
739 }
740 ret = get_u8(&bos, *argv, 10);
741 if (ret < 0 || bos & ~(MPLS_LS_S_MASK >> MPLS_LS_S_SHIFT)) {
742 fprintf(stderr, "Illegal \"mpls_bos\"\n");
743 return -1;
744 }
745 addattr8(n, MAX_MSG, TCA_FLOWER_KEY_MPLS_BOS, bos);
746 } else if (matches(*argv, "mpls_ttl") == 0) {
747 __u8 ttl;
748
749 NEXT_ARG();
750 if (eth_type != htons(ETH_P_MPLS_UC) &&
751 eth_type != htons(ETH_P_MPLS_MC)) {
752 fprintf(stderr,
753 "Can't set \"mpls_ttl\" if ethertype isn't MPLS\n");
754 return -1;
755 }
756 ret = get_u8(&ttl, *argv, 10);
757 if (ret < 0 || ttl & ~(MPLS_LS_TTL_MASK >> MPLS_LS_TTL_SHIFT)) {
758 fprintf(stderr, "Illegal \"mpls_ttl\"\n");
759 return -1;
760 }
761 addattr8(n, MAX_MSG, TCA_FLOWER_KEY_MPLS_TTL, ttl);
762 } else if (matches(*argv, "dst_mac") == 0) {
763 NEXT_ARG();
764 ret = flower_parse_eth_addr(*argv,
765 TCA_FLOWER_KEY_ETH_DST,
766 TCA_FLOWER_KEY_ETH_DST_MASK,
767 n);
768 if (ret < 0) {
769 fprintf(stderr, "Illegal \"dst_mac\"\n");
770 return -1;
771 }
772 } else if (matches(*argv, "src_mac") == 0) {
773 NEXT_ARG();
774 ret = flower_parse_eth_addr(*argv,
775 TCA_FLOWER_KEY_ETH_SRC,
776 TCA_FLOWER_KEY_ETH_SRC_MASK,
777 n);
778 if (ret < 0) {
779 fprintf(stderr, "Illegal \"src_mac\"\n");
780 return -1;
781 }
782 } else if (matches(*argv, "ip_proto") == 0) {
783 NEXT_ARG();
784 ret = flower_parse_ip_proto(*argv, vlan_ethtype ?
785 vlan_ethtype : eth_type,
786 TCA_FLOWER_KEY_IP_PROTO,
787 &ip_proto, n);
788 if (ret < 0) {
789 fprintf(stderr, "Illegal \"ip_proto\"\n");
790 return -1;
791 }
792 } else if (matches(*argv, "ip_tos") == 0) {
793 NEXT_ARG();
794 ret = flower_parse_ip_tos_ttl(*argv,
795 TCA_FLOWER_KEY_IP_TOS,
796 TCA_FLOWER_KEY_IP_TOS_MASK,
797 n);
798 if (ret < 0) {
799 fprintf(stderr, "Illegal \"ip_tos\"\n");
800 return -1;
801 }
802 } else if (matches(*argv, "ip_ttl") == 0) {
803 NEXT_ARG();
804 ret = flower_parse_ip_tos_ttl(*argv,
805 TCA_FLOWER_KEY_IP_TTL,
806 TCA_FLOWER_KEY_IP_TTL_MASK,
807 n);
808 if (ret < 0) {
809 fprintf(stderr, "Illegal \"ip_ttl\"\n");
810 return -1;
811 }
812 } else if (matches(*argv, "dst_ip") == 0) {
813 NEXT_ARG();
814 ret = flower_parse_ip_addr(*argv, vlan_ethtype ?
815 vlan_ethtype : eth_type,
816 TCA_FLOWER_KEY_IPV4_DST,
817 TCA_FLOWER_KEY_IPV4_DST_MASK,
818 TCA_FLOWER_KEY_IPV6_DST,
819 TCA_FLOWER_KEY_IPV6_DST_MASK,
820 n);
821 if (ret < 0) {
822 fprintf(stderr, "Illegal \"dst_ip\"\n");
823 return -1;
824 }
825 } else if (matches(*argv, "src_ip") == 0) {
826 NEXT_ARG();
827 ret = flower_parse_ip_addr(*argv, vlan_ethtype ?
828 vlan_ethtype : eth_type,
829 TCA_FLOWER_KEY_IPV4_SRC,
830 TCA_FLOWER_KEY_IPV4_SRC_MASK,
831 TCA_FLOWER_KEY_IPV6_SRC,
832 TCA_FLOWER_KEY_IPV6_SRC_MASK,
833 n);
834 if (ret < 0) {
835 fprintf(stderr, "Illegal \"src_ip\"\n");
836 return -1;
837 }
838 } else if (matches(*argv, "dst_port") == 0) {
839 NEXT_ARG();
840 ret = flower_parse_port(*argv, ip_proto,
841 FLOWER_ENDPOINT_DST, n);
842 if (ret < 0) {
843 fprintf(stderr, "Illegal \"dst_port\"\n");
844 return -1;
845 }
846 } else if (matches(*argv, "src_port") == 0) {
847 NEXT_ARG();
848 ret = flower_parse_port(*argv, ip_proto,
849 FLOWER_ENDPOINT_SRC, n);
850 if (ret < 0) {
851 fprintf(stderr, "Illegal \"src_port\"\n");
852 return -1;
853 }
854 } else if (matches(*argv, "tcp_flags") == 0) {
855 NEXT_ARG();
856 ret = flower_parse_tcp_flags(*argv,
857 TCA_FLOWER_KEY_TCP_FLAGS,
858 TCA_FLOWER_KEY_TCP_FLAGS_MASK,
859 n);
860 if (ret < 0) {
861 fprintf(stderr, "Illegal \"tcp_flags\"\n");
862 return -1;
863 }
864 } else if (matches(*argv, "type") == 0) {
865 NEXT_ARG();
866 ret = flower_parse_icmp(*argv, eth_type, ip_proto,
867 FLOWER_ICMP_FIELD_TYPE, n);
868 if (ret < 0) {
869 fprintf(stderr, "Illegal \"icmp type\"\n");
870 return -1;
871 }
872 } else if (matches(*argv, "code") == 0) {
873 NEXT_ARG();
874 ret = flower_parse_icmp(*argv, eth_type, ip_proto,
875 FLOWER_ICMP_FIELD_CODE, n);
876 if (ret < 0) {
877 fprintf(stderr, "Illegal \"icmp code\"\n");
878 return -1;
879 }
880 } else if (matches(*argv, "arp_tip") == 0) {
881 NEXT_ARG();
882 ret = flower_parse_arp_ip_addr(*argv, vlan_ethtype ?
883 vlan_ethtype : eth_type,
884 TCA_FLOWER_KEY_ARP_TIP,
885 TCA_FLOWER_KEY_ARP_TIP_MASK,
886 n);
887 if (ret < 0) {
888 fprintf(stderr, "Illegal \"arp_tip\"\n");
889 return -1;
890 }
891 } else if (matches(*argv, "arp_sip") == 0) {
892 NEXT_ARG();
893 ret = flower_parse_arp_ip_addr(*argv, vlan_ethtype ?
894 vlan_ethtype : eth_type,
895 TCA_FLOWER_KEY_ARP_SIP,
896 TCA_FLOWER_KEY_ARP_SIP_MASK,
897 n);
898 if (ret < 0) {
899 fprintf(stderr, "Illegal \"arp_sip\"\n");
900 return -1;
901 }
902 } else if (matches(*argv, "arp_op") == 0) {
903 NEXT_ARG();
904 ret = flower_parse_arp_op(*argv, vlan_ethtype ?
905 vlan_ethtype : eth_type,
906 TCA_FLOWER_KEY_ARP_OP,
907 TCA_FLOWER_KEY_ARP_OP_MASK,
908 n);
909 if (ret < 0) {
910 fprintf(stderr, "Illegal \"arp_op\"\n");
911 return -1;
912 }
913 } else if (matches(*argv, "arp_tha") == 0) {
914 NEXT_ARG();
915 ret = flower_parse_eth_addr(*argv,
916 TCA_FLOWER_KEY_ARP_THA,
917 TCA_FLOWER_KEY_ARP_THA_MASK,
918 n);
919 if (ret < 0) {
920 fprintf(stderr, "Illegal \"arp_tha\"\n");
921 return -1;
922 }
923 } else if (matches(*argv, "arp_sha") == 0) {
924 NEXT_ARG();
925 ret = flower_parse_eth_addr(*argv,
926 TCA_FLOWER_KEY_ARP_SHA,
927 TCA_FLOWER_KEY_ARP_SHA_MASK,
928 n);
929 if (ret < 0) {
930 fprintf(stderr, "Illegal \"arp_sha\"\n");
931 return -1;
932 }
933 } else if (matches(*argv, "enc_dst_ip") == 0) {
934 NEXT_ARG();
935 ret = flower_parse_ip_addr(*argv, 0,
936 TCA_FLOWER_KEY_ENC_IPV4_DST,
937 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK,
938 TCA_FLOWER_KEY_ENC_IPV6_DST,
939 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK,
940 n);
941 if (ret < 0) {
942 fprintf(stderr, "Illegal \"enc_dst_ip\"\n");
943 return -1;
944 }
945 } else if (matches(*argv, "enc_src_ip") == 0) {
946 NEXT_ARG();
947 ret = flower_parse_ip_addr(*argv, 0,
948 TCA_FLOWER_KEY_ENC_IPV4_SRC,
949 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK,
950 TCA_FLOWER_KEY_ENC_IPV6_SRC,
951 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK,
952 n);
953 if (ret < 0) {
954 fprintf(stderr, "Illegal \"enc_src_ip\"\n");
955 return -1;
956 }
957 } else if (matches(*argv, "enc_key_id") == 0) {
958 NEXT_ARG();
959 ret = flower_parse_key_id(*argv,
960 TCA_FLOWER_KEY_ENC_KEY_ID, n);
961 if (ret < 0) {
962 fprintf(stderr, "Illegal \"enc_key_id\"\n");
963 return -1;
964 }
965 } else if (matches(*argv, "enc_dst_port") == 0) {
966 NEXT_ARG();
967 ret = flower_parse_enc_port(*argv,
968 TCA_FLOWER_KEY_ENC_UDP_DST_PORT, n);
969 if (ret < 0) {
970 fprintf(stderr, "Illegal \"enc_dst_port\"\n");
971 return -1;
972 }
973 } else if (matches(*argv, "action") == 0) {
974 NEXT_ARG();
975 ret = parse_action(&argc, &argv, TCA_FLOWER_ACT, n);
976 if (ret) {
977 fprintf(stderr, "Illegal \"action\"\n");
978 return -1;
979 }
980 continue;
981 } else if (strcmp(*argv, "help") == 0) {
982 explain();
983 return -1;
984 } else {
985 fprintf(stderr, "What is \"%s\"?\n", *argv);
986 explain();
987 return -1;
988 }
989 argc--; argv++;
990 }
991
992 parse_done:
993 ret = addattr32(n, MAX_MSG, TCA_FLOWER_FLAGS, flags);
994 if (ret)
995 return ret;
996
997 if (mtf_mask) {
998 ret = addattr32(n, MAX_MSG, TCA_FLOWER_KEY_FLAGS, htonl(mtf));
999 if (ret)
1000 return ret;
1001
1002 ret = addattr32(n, MAX_MSG, TCA_FLOWER_KEY_FLAGS_MASK, htonl(mtf_mask));
1003 if (ret)
1004 return ret;
1005 }
1006
1007 if (eth_type != htons(ETH_P_ALL)) {
1008 ret = addattr16(n, MAX_MSG, TCA_FLOWER_KEY_ETH_TYPE, eth_type);
1009 if (ret)
1010 return ret;
1011 }
1012
1013 tail->rta_len = (((void *)n)+n->nlmsg_len) - (void *)tail;
1014
1015 return 0;
1016 }
1017
1018 static int __mask_bits(char *addr, size_t len)
1019 {
1020 int bits = 0;
1021 bool hole = false;
1022 int i;
1023 int j;
1024
1025 for (i = 0; i < len; i++, addr++) {
1026 for (j = 7; j >= 0; j--) {
1027 if (((*addr) >> j) & 0x1) {
1028 if (hole)
1029 return -1;
1030 bits++;
1031 } else if (bits) {
1032 hole = true;
1033 } else{
1034 return -1;
1035 }
1036 }
1037 }
1038 return bits;
1039 }
1040
1041 static void flower_print_eth_addr(char *name, struct rtattr *addr_attr,
1042 struct rtattr *mask_attr)
1043 {
1044 SPRINT_BUF(namefrm);
1045 SPRINT_BUF(out);
1046 SPRINT_BUF(b1);
1047 size_t done;
1048 int bits;
1049
1050 if (!addr_attr || RTA_PAYLOAD(addr_attr) != ETH_ALEN)
1051 return;
1052 done = sprintf(out, "%s",
1053 ll_addr_n2a(RTA_DATA(addr_attr), ETH_ALEN,
1054 0, b1, sizeof(b1)));
1055 if (mask_attr && RTA_PAYLOAD(mask_attr) == ETH_ALEN) {
1056 bits = __mask_bits(RTA_DATA(mask_attr), ETH_ALEN);
1057 if (bits < 0)
1058 sprintf(out + done, "/%s",
1059 ll_addr_n2a(RTA_DATA(mask_attr), ETH_ALEN,
1060 0, b1, sizeof(b1)));
1061 else if (bits < ETH_ALEN * 8)
1062 sprintf(out + done, "/%d", bits);
1063 }
1064
1065 sprintf(namefrm, "\n %s %%s", name);
1066 print_string(PRINT_ANY, name, namefrm, out);
1067 }
1068
1069 static void flower_print_eth_type(__be16 *p_eth_type,
1070 struct rtattr *eth_type_attr)
1071 {
1072 SPRINT_BUF(out);
1073 __be16 eth_type;
1074
1075 if (!eth_type_attr)
1076 return;
1077
1078 eth_type = rta_getattr_u16(eth_type_attr);
1079 if (eth_type == htons(ETH_P_IP))
1080 sprintf(out, "ipv4");
1081 else if (eth_type == htons(ETH_P_IPV6))
1082 sprintf(out, "ipv6");
1083 else if (eth_type == htons(ETH_P_ARP))
1084 sprintf(out, "arp");
1085 else if (eth_type == htons(ETH_P_RARP))
1086 sprintf(out, "rarp");
1087 else
1088 sprintf(out, "%04x", ntohs(eth_type));
1089
1090 print_string(PRINT_ANY, "eth_type", "\n eth_type %s", out);
1091 *p_eth_type = eth_type;
1092 }
1093
1094 static void flower_print_ip_proto(__u8 *p_ip_proto,
1095 struct rtattr *ip_proto_attr)
1096 {
1097 SPRINT_BUF(out);
1098 __u8 ip_proto;
1099
1100 if (!ip_proto_attr)
1101 return;
1102
1103 ip_proto = rta_getattr_u8(ip_proto_attr);
1104 if (ip_proto == IPPROTO_TCP)
1105 sprintf(out, "tcp");
1106 else if (ip_proto == IPPROTO_UDP)
1107 sprintf(out, "udp");
1108 else if (ip_proto == IPPROTO_SCTP)
1109 sprintf(out, "sctp");
1110 else if (ip_proto == IPPROTO_ICMP)
1111 sprintf(out, "icmp");
1112 else if (ip_proto == IPPROTO_ICMPV6)
1113 sprintf(out, "icmpv6");
1114 else
1115 sprintf(out, "%02x", ip_proto);
1116
1117 print_string(PRINT_ANY, "ip_proto", "\n ip_proto %s", out);
1118 *p_ip_proto = ip_proto;
1119 }
1120
1121 static void flower_print_ip_attr(char *name, struct rtattr *key_attr,
1122 struct rtattr *mask_attr)
1123 {
1124 SPRINT_BUF(namefrm);
1125 SPRINT_BUF(out);
1126 size_t done;
1127
1128 if (!key_attr)
1129 return;
1130
1131 done = sprintf(out, "%x", rta_getattr_u8(key_attr));
1132 if (mask_attr)
1133 sprintf(out + done, "/%x", rta_getattr_u8(mask_attr));
1134
1135 sprintf(namefrm, "\n %s %%x", name);
1136 print_string(PRINT_ANY, name, namefrm, out);
1137 }
1138
1139 static void flower_print_matching_flags(char *name,
1140 enum flower_matching_flags type,
1141 struct rtattr *attr,
1142 struct rtattr *mask_attr)
1143 {
1144 int i;
1145 int count = 0;
1146 __u32 mtf;
1147 __u32 mtf_mask;
1148
1149 if (!mask_attr || RTA_PAYLOAD(mask_attr) != 4)
1150 return;
1151
1152 mtf = ntohl(rta_getattr_u32(attr));
1153 mtf_mask = ntohl(rta_getattr_u32(mask_attr));
1154
1155 for (i = 0; i < ARRAY_SIZE(flags_str); i++) {
1156 if (type != flags_str[i].type)
1157 continue;
1158 if (mtf_mask & flags_str[i].flag) {
1159 if (++count == 1) {
1160 print_string(PRINT_FP, NULL, "\n %s ", name);
1161 open_json_object(name);
1162 } else {
1163 print_string(PRINT_FP, NULL, "/", NULL);
1164 }
1165
1166 print_bool(PRINT_JSON, flags_str[i].string, NULL,
1167 mtf & flags_str[i].flag);
1168 if (mtf & flags_str[i].flag)
1169 print_string(PRINT_FP, NULL, "%s",
1170 flags_str[i].string);
1171 else
1172 print_string(PRINT_FP, NULL, "no%s",
1173 flags_str[i].string);
1174 }
1175 }
1176 if (count)
1177 close_json_object();
1178 }
1179
1180 static void flower_print_ip_addr(char *name, __be16 eth_type,
1181 struct rtattr *addr4_attr,
1182 struct rtattr *mask4_attr,
1183 struct rtattr *addr6_attr,
1184 struct rtattr *mask6_attr)
1185 {
1186 struct rtattr *addr_attr;
1187 struct rtattr *mask_attr;
1188 SPRINT_BUF(namefrm);
1189 SPRINT_BUF(out);
1190 size_t done;
1191 int family;
1192 size_t len;
1193 int bits;
1194
1195 if (eth_type == htons(ETH_P_IP)) {
1196 family = AF_INET;
1197 addr_attr = addr4_attr;
1198 mask_attr = mask4_attr;
1199 len = 4;
1200 } else if (eth_type == htons(ETH_P_IPV6)) {
1201 family = AF_INET6;
1202 addr_attr = addr6_attr;
1203 mask_attr = mask6_attr;
1204 len = 16;
1205 } else {
1206 return;
1207 }
1208 if (!addr_attr || RTA_PAYLOAD(addr_attr) != len)
1209 return;
1210 if (!mask_attr || RTA_PAYLOAD(mask_attr) != len)
1211 return;
1212 done = sprintf(out, "%s", rt_addr_n2a_rta(family, addr_attr));
1213 bits = __mask_bits(RTA_DATA(mask_attr), len);
1214 if (bits < 0)
1215 sprintf(out + done, "/%s", rt_addr_n2a_rta(family, mask_attr));
1216 else if (bits < len * 8)
1217 sprintf(out + done, "/%d", bits);
1218
1219 sprintf(namefrm, "\n %s %%s", name);
1220 print_string(PRINT_ANY, name, namefrm, out);
1221 }
1222 static void flower_print_ip4_addr(char *name, struct rtattr *addr_attr,
1223 struct rtattr *mask_attr)
1224 {
1225 return flower_print_ip_addr(name, htons(ETH_P_IP),
1226 addr_attr, mask_attr, 0, 0);
1227 }
1228
1229 static void flower_print_port(char *name, struct rtattr *attr)
1230 {
1231 SPRINT_BUF(namefrm);
1232
1233 if (!attr)
1234 return;
1235
1236 sprintf(namefrm,"\n %s %%u", name);
1237 print_hu(PRINT_ANY, name, namefrm, rta_getattr_be16(attr));
1238 }
1239
1240 static void flower_print_tcp_flags(char *name, struct rtattr *flags_attr,
1241 struct rtattr *mask_attr)
1242 {
1243 SPRINT_BUF(namefrm);
1244 SPRINT_BUF(out);
1245 size_t done;
1246
1247 if (!flags_attr)
1248 return;
1249
1250 done = sprintf(out, "%x", rta_getattr_be16(flags_attr));
1251 if (mask_attr)
1252 sprintf(out + done, "%x", rta_getattr_be16(flags_attr));
1253
1254 sprintf(namefrm, "\n %s %%s", name);
1255 print_string(PRINT_ANY, name, namefrm, out);
1256 }
1257
1258
1259 static void flower_print_key_id(const char *name, struct rtattr *attr)
1260 {
1261 SPRINT_BUF(namefrm);
1262
1263 if (!attr)
1264 return;
1265
1266 sprintf(namefrm,"\n %s %%u", name);
1267 print_uint(PRINT_ANY, name, namefrm, rta_getattr_be32(attr));
1268 }
1269
1270 static void flower_print_masked_u8(const char *name, struct rtattr *attr,
1271 struct rtattr *mask_attr,
1272 const char *(*value_to_str)(__u8 value))
1273 {
1274 const char *value_str = NULL;
1275 __u8 value, mask;
1276 SPRINT_BUF(namefrm);
1277 SPRINT_BUF(out);
1278 size_t done;
1279
1280 if (!attr)
1281 return;
1282
1283 value = rta_getattr_u8(attr);
1284 mask = mask_attr ? rta_getattr_u8(mask_attr) : UINT8_MAX;
1285 if (mask == UINT8_MAX && value_to_str)
1286 value_str = value_to_str(value);
1287
1288 if (value_str)
1289 done = sprintf(out, "%s", value_str);
1290 else
1291 done = sprintf(out, "%d", value);
1292
1293 if (mask != UINT8_MAX)
1294 sprintf(out + done, "/%d", mask);
1295
1296 sprintf(namefrm,"\n %s %%s", name);
1297 print_string(PRINT_ANY, name, namefrm, out);
1298 }
1299
1300 static void flower_print_u8(const char *name, struct rtattr *attr)
1301 {
1302 flower_print_masked_u8(name, attr, NULL, NULL);
1303 }
1304
1305 static void flower_print_u32(const char *name, struct rtattr *attr)
1306 {
1307 SPRINT_BUF(namefrm);
1308
1309 if (!attr)
1310 return;
1311
1312 sprintf(namefrm,"\n %s %%u", name);
1313 print_uint(PRINT_ANY, name, namefrm, rta_getattr_u32(attr));
1314 }
1315
1316 static void flower_print_arp_op(const char *name,
1317 struct rtattr *op_attr,
1318 struct rtattr *mask_attr)
1319 {
1320 flower_print_masked_u8(name, op_attr, mask_attr,
1321 flower_print_arp_op_to_name);
1322 }
1323
1324 static int flower_print_opt(struct filter_util *qu, FILE *f,
1325 struct rtattr *opt, __u32 handle)
1326 {
1327 struct rtattr *tb[TCA_FLOWER_MAX + 1];
1328 int nl_type, nl_mask_type;
1329 __be16 eth_type = 0;
1330 __u8 ip_proto = 0xff;
1331
1332 if (!opt)
1333 return 0;
1334
1335 parse_rtattr_nested(tb, TCA_FLOWER_MAX, opt);
1336
1337 if (handle)
1338 print_uint(PRINT_ANY, "handle", "handle 0x%x ", handle);
1339
1340 if (tb[TCA_FLOWER_CLASSID]) {
1341 __u32 h = rta_getattr_u32(tb[TCA_FLOWER_CLASSID]);
1342
1343 if (TC_H_MIN(h) < TC_H_MIN_PRIORITY ||
1344 TC_H_MIN(h) > (TC_H_MIN_PRIORITY + TC_QOPT_MAX_QUEUE - 1)) {
1345 SPRINT_BUF(b1);
1346 print_string(PRINT_ANY, "classid", "classid %s ",
1347 sprint_tc_classid(h, b1));
1348 } else {
1349 print_uint(PRINT_ANY, "hw_tc", "hw_tc %u ",
1350 TC_H_MIN(h) - TC_H_MIN_PRIORITY);
1351 }
1352 }
1353
1354 if (tb[TCA_FLOWER_INDEV]) {
1355 struct rtattr *attr = tb[TCA_FLOWER_INDEV];
1356
1357 print_string(PRINT_ANY, "indev", "\n indev %s",
1358 rta_getattr_str(attr));
1359 }
1360
1361 open_json_object("keys");
1362
1363 if (tb[TCA_FLOWER_KEY_VLAN_ID]) {
1364 struct rtattr *attr = tb[TCA_FLOWER_KEY_VLAN_ID];
1365
1366 print_uint(PRINT_ANY, "vlan_id", "\n vlan_id %u",
1367 rta_getattr_u16(attr));
1368 }
1369
1370 if (tb[TCA_FLOWER_KEY_VLAN_PRIO]) {
1371 struct rtattr *attr = tb[TCA_FLOWER_KEY_VLAN_PRIO];
1372
1373 print_uint(PRINT_ANY, "vlan_prio", "\n vlan_prio %d",
1374 rta_getattr_u8(attr));
1375 }
1376
1377 flower_print_eth_addr("dst_mac", tb[TCA_FLOWER_KEY_ETH_DST],
1378 tb[TCA_FLOWER_KEY_ETH_DST_MASK]);
1379 flower_print_eth_addr("src_mac", tb[TCA_FLOWER_KEY_ETH_SRC],
1380 tb[TCA_FLOWER_KEY_ETH_SRC_MASK]);
1381
1382 flower_print_eth_type(&eth_type, tb[TCA_FLOWER_KEY_ETH_TYPE]);
1383 flower_print_ip_proto(&ip_proto, tb[TCA_FLOWER_KEY_IP_PROTO]);
1384
1385 flower_print_ip_attr("ip_tos", tb[TCA_FLOWER_KEY_IP_TOS],
1386 tb[TCA_FLOWER_KEY_IP_TOS_MASK]);
1387 flower_print_ip_attr("ip_ttl", tb[TCA_FLOWER_KEY_IP_TTL],
1388 tb[TCA_FLOWER_KEY_IP_TTL_MASK]);
1389
1390 flower_print_u32("mpls_label", tb[TCA_FLOWER_KEY_MPLS_LABEL]);
1391 flower_print_u8("mpls_tc", tb[TCA_FLOWER_KEY_MPLS_TC]);
1392 flower_print_u8("mpls_bos", tb[TCA_FLOWER_KEY_MPLS_BOS]);
1393 flower_print_u8("mpls_ttl", tb[TCA_FLOWER_KEY_MPLS_TTL]);
1394
1395 flower_print_ip_addr("dst_ip", eth_type,
1396 tb[TCA_FLOWER_KEY_IPV4_DST],
1397 tb[TCA_FLOWER_KEY_IPV4_DST_MASK],
1398 tb[TCA_FLOWER_KEY_IPV6_DST],
1399 tb[TCA_FLOWER_KEY_IPV6_DST_MASK]);
1400
1401 flower_print_ip_addr("src_ip", eth_type,
1402 tb[TCA_FLOWER_KEY_IPV4_SRC],
1403 tb[TCA_FLOWER_KEY_IPV4_SRC_MASK],
1404 tb[TCA_FLOWER_KEY_IPV6_SRC],
1405 tb[TCA_FLOWER_KEY_IPV6_SRC_MASK]);
1406
1407 nl_type = flower_port_attr_type(ip_proto, FLOWER_ENDPOINT_DST);
1408 if (nl_type >= 0)
1409 flower_print_port("dst_port", tb[nl_type]);
1410 nl_type = flower_port_attr_type(ip_proto, FLOWER_ENDPOINT_SRC);
1411 if (nl_type >= 0)
1412 flower_print_port("src_port", tb[nl_type]);
1413
1414 flower_print_tcp_flags("tcp_flags", tb[TCA_FLOWER_KEY_TCP_FLAGS],
1415 tb[TCA_FLOWER_KEY_TCP_FLAGS_MASK]);
1416
1417 nl_type = flower_icmp_attr_type(eth_type, ip_proto,
1418 FLOWER_ICMP_FIELD_TYPE);
1419 nl_mask_type = flower_icmp_attr_mask_type(eth_type, ip_proto,
1420 FLOWER_ICMP_FIELD_TYPE);
1421 if (nl_type >= 0 && nl_mask_type >= 0)
1422 flower_print_masked_u8("icmp_type", tb[nl_type],
1423 tb[nl_mask_type], NULL);
1424
1425 nl_type = flower_icmp_attr_type(eth_type, ip_proto,
1426 FLOWER_ICMP_FIELD_CODE);
1427 nl_mask_type = flower_icmp_attr_mask_type(eth_type, ip_proto,
1428 FLOWER_ICMP_FIELD_CODE);
1429 if (nl_type >= 0 && nl_mask_type >= 0)
1430 flower_print_masked_u8("icmp_code", tb[nl_type],
1431 tb[nl_mask_type], NULL);
1432
1433 flower_print_ip4_addr("arp_sip", tb[TCA_FLOWER_KEY_ARP_SIP],
1434 tb[TCA_FLOWER_KEY_ARP_SIP_MASK]);
1435 flower_print_ip4_addr("arp_tip", tb[TCA_FLOWER_KEY_ARP_TIP],
1436 tb[TCA_FLOWER_KEY_ARP_TIP_MASK]);
1437 flower_print_arp_op("arp_op", tb[TCA_FLOWER_KEY_ARP_OP],
1438 tb[TCA_FLOWER_KEY_ARP_OP_MASK]);
1439 flower_print_eth_addr("arp_sha", tb[TCA_FLOWER_KEY_ARP_SHA],
1440 tb[TCA_FLOWER_KEY_ARP_SHA_MASK]);
1441 flower_print_eth_addr("arp_tha", tb[TCA_FLOWER_KEY_ARP_THA],
1442 tb[TCA_FLOWER_KEY_ARP_THA_MASK]);
1443
1444 flower_print_ip_addr("enc_dst_ip",
1445 tb[TCA_FLOWER_KEY_ENC_IPV4_DST_MASK] ?
1446 htons(ETH_P_IP) : htons(ETH_P_IPV6),
1447 tb[TCA_FLOWER_KEY_ENC_IPV4_DST],
1448 tb[TCA_FLOWER_KEY_ENC_IPV4_DST_MASK],
1449 tb[TCA_FLOWER_KEY_ENC_IPV6_DST],
1450 tb[TCA_FLOWER_KEY_ENC_IPV6_DST_MASK]);
1451
1452 flower_print_ip_addr("enc_src_ip",
1453 tb[TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK] ?
1454 htons(ETH_P_IP) : htons(ETH_P_IPV6),
1455 tb[TCA_FLOWER_KEY_ENC_IPV4_SRC],
1456 tb[TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK],
1457 tb[TCA_FLOWER_KEY_ENC_IPV6_SRC],
1458 tb[TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK]);
1459
1460 flower_print_key_id("enc_key_id", tb[TCA_FLOWER_KEY_ENC_KEY_ID]);
1461
1462 flower_print_port("enc_dst_port", tb[TCA_FLOWER_KEY_ENC_UDP_DST_PORT]);
1463
1464 flower_print_matching_flags("ip_flags", FLOWER_IP_FLAGS,
1465 tb[TCA_FLOWER_KEY_FLAGS],
1466 tb[TCA_FLOWER_KEY_FLAGS_MASK]);
1467
1468 close_json_object();
1469
1470 if (tb[TCA_FLOWER_FLAGS]) {
1471 __u32 flags = rta_getattr_u32(tb[TCA_FLOWER_FLAGS]);
1472
1473 if (flags & TCA_CLS_FLAGS_SKIP_HW)
1474 print_bool(PRINT_ANY, "skip_hw", "\n skip_hw", true);
1475 if (flags & TCA_CLS_FLAGS_SKIP_SW)
1476 print_bool(PRINT_ANY, "skip_sw", "\n skip_sw", true);
1477
1478 if (flags & TCA_CLS_FLAGS_IN_HW)
1479 print_bool(PRINT_ANY, "in_hw", "\n in_hw", true);
1480 else if (flags & TCA_CLS_FLAGS_NOT_IN_HW)
1481 print_bool(PRINT_ANY, "not_in_hw", "\n not_in_hw", true);
1482 }
1483
1484 if (tb[TCA_FLOWER_ACT])
1485 tc_print_action(f, tb[TCA_FLOWER_ACT], 0);
1486
1487 return 0;
1488 }
1489
1490 struct filter_util flower_filter_util = {
1491 .id = "flower",
1492 .parse_fopt = flower_parse_opt,
1493 .print_fopt = flower_print_opt,
1494 };
Upstream mirror of iproute2