Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 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 <syslog.h> |
| 16 | #include <string.h> |
| 17 | #include <net/if.h> |
| 18 | #include <linux/if_ether.h> |
| 19 | #include <linux/ip.h> |
| 20 | |
| 21 | #include "utils.h" |
| 22 | #include "tc_util.h" |
| 23 | #include "rt_names.h" |
| 24 | |
| 25 | static void explain(void) |
| 26 | { |
| 27 | fprintf(stderr, "Usage: ... flower [ MATCH-LIST ]\n"); |
Amir Vadai | cfcabf1 | 2016-07-04 10:34:11 +0300 | [diff] [blame] | 28 | fprintf(stderr, " [ skip_sw | skip_hw ]\n"); |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 29 | fprintf(stderr, " [ action ACTION-SPEC ] [ classid CLASSID ]\n"); |
| 30 | fprintf(stderr, "\n"); |
| 31 | fprintf(stderr, "Where: MATCH-LIST := [ MATCH-LIST ] MATCH\n"); |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 32 | fprintf(stderr, " MATCH := { indev DEV-NAME |\n"); |
| 33 | fprintf(stderr, " dst_mac MAC-ADDR |\n"); |
| 34 | fprintf(stderr, " src_mac MAC-ADDR |\n"); |
| 35 | fprintf(stderr, " [ipv4 | ipv6 ] |\n"); |
| 36 | fprintf(stderr, " ip_proto [tcp | udp | IP-PROTO ] |\n"); |
| 37 | fprintf(stderr, " dst_ip [ IPV4-ADDR | IPV6-ADDR ] |\n"); |
| 38 | fprintf(stderr, " src_ip [ IPV4-ADDR | IPV6-ADDR ] |\n"); |
| 39 | fprintf(stderr, " dst_port PORT-NUMBER |\n"); |
Phil Sutter | 0a83e1e | 2015-10-23 19:21:17 +0200 | [diff] [blame] | 40 | fprintf(stderr, " src_port PORT-NUMBER }\n"); |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 41 | fprintf(stderr, " FILTERID := X:Y:Z\n"); |
| 42 | fprintf(stderr, " ACTION-SPEC := ... look at individual actions\n"); |
| 43 | fprintf(stderr, "\n"); |
| 44 | fprintf(stderr, "NOTE: CLASSID, ETH-TYPE, IP-PROTO are parsed as hexadecimal input.\n"); |
| 45 | fprintf(stderr, "NOTE: There can be only used one mask per one prio. If user needs\n"); |
| 46 | fprintf(stderr, " to specify different mask, he has to use different prio.\n"); |
| 47 | } |
| 48 | |
| 49 | static int flower_parse_eth_addr(char *str, int addr_type, int mask_type, |
| 50 | struct nlmsghdr *n) |
| 51 | { |
| 52 | int ret; |
| 53 | char addr[ETH_ALEN]; |
| 54 | |
| 55 | ret = ll_addr_a2n(addr, sizeof(addr), str); |
| 56 | if (ret < 0) |
| 57 | return -1; |
| 58 | addattr_l(n, MAX_MSG, addr_type, addr, sizeof(addr)); |
| 59 | memset(addr, 0xff, ETH_ALEN); |
| 60 | addattr_l(n, MAX_MSG, mask_type, addr, sizeof(addr)); |
| 61 | return 0; |
| 62 | } |
| 63 | |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 64 | static int flower_parse_ip_proto(char *str, __be16 eth_type, int type, |
| 65 | __u8 *p_ip_proto, struct nlmsghdr *n) |
| 66 | { |
| 67 | int ret; |
| 68 | __u8 ip_proto; |
| 69 | |
| 70 | if (eth_type != htons(ETH_P_IP) && eth_type != htons(ETH_P_IPV6)) { |
| 71 | fprintf(stderr, "Illegal \"eth_type\" for ip proto\n"); |
| 72 | return -1; |
| 73 | } |
| 74 | if (matches(str, "tcp") == 0) { |
| 75 | ip_proto = IPPROTO_TCP; |
| 76 | } else if (matches(str, "udp") == 0) { |
| 77 | ip_proto = IPPROTO_UDP; |
| 78 | } else { |
| 79 | ret = get_u8(&ip_proto, str, 16); |
| 80 | if (ret) |
| 81 | return -1; |
| 82 | } |
| 83 | addattr8(n, MAX_MSG, type, ip_proto); |
| 84 | *p_ip_proto = ip_proto; |
| 85 | return 0; |
| 86 | } |
| 87 | |
| 88 | static int flower_parse_ip_addr(char *str, __be16 eth_type, |
| 89 | int addr4_type, int mask4_type, |
| 90 | int addr6_type, int mask6_type, |
| 91 | struct nlmsghdr *n) |
| 92 | { |
| 93 | int ret; |
| 94 | inet_prefix addr; |
| 95 | int family; |
| 96 | int bits; |
| 97 | int i; |
| 98 | |
| 99 | if (eth_type == htons(ETH_P_IP)) { |
| 100 | family = AF_INET; |
| 101 | } else if (eth_type == htons(ETH_P_IPV6)) { |
| 102 | family = AF_INET6; |
| 103 | } else { |
| 104 | fprintf(stderr, "Illegal \"eth_type\" for ip address\n"); |
| 105 | return -1; |
| 106 | } |
| 107 | |
| 108 | ret = get_prefix(&addr, str, family); |
| 109 | if (ret) |
| 110 | return -1; |
| 111 | |
| 112 | if (addr.family != family) |
| 113 | return -1; |
| 114 | |
| 115 | addattr_l(n, MAX_MSG, addr.family == AF_INET ? addr4_type : addr6_type, |
| 116 | addr.data, addr.bytelen); |
| 117 | |
| 118 | memset(addr.data, 0xff, addr.bytelen); |
| 119 | bits = addr.bitlen; |
| 120 | for (i = 0; i < addr.bytelen / 4; i++) { |
| 121 | if (!bits) { |
| 122 | addr.data[i] = 0; |
| 123 | } else if (bits / 32 >= 1) { |
| 124 | bits -= 32; |
| 125 | } else { |
| 126 | addr.data[i] <<= 32 - bits; |
| 127 | addr.data[i] = htonl(addr.data[i]); |
| 128 | bits = 0; |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | addattr_l(n, MAX_MSG, addr.family == AF_INET ? mask4_type : mask6_type, |
| 133 | addr.data, addr.bytelen); |
| 134 | |
| 135 | return 0; |
| 136 | } |
| 137 | |
| 138 | static int flower_parse_port(char *str, __u8 ip_port, |
| 139 | int tcp_type, int udp_type, struct nlmsghdr *n) |
| 140 | { |
| 141 | int ret; |
| 142 | int type; |
| 143 | __be16 port; |
| 144 | |
| 145 | if (ip_port == IPPROTO_TCP) { |
| 146 | type = tcp_type; |
| 147 | } else if (ip_port == IPPROTO_UDP) { |
| 148 | type = udp_type; |
| 149 | } else { |
| 150 | fprintf(stderr, "Illegal \"ip_proto\" for port\n"); |
| 151 | return -1; |
| 152 | } |
| 153 | |
Sabrina Dubroca | 9f7401f | 2016-06-03 16:45:46 +0200 | [diff] [blame] | 154 | ret = get_be16(&port, str, 10); |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 155 | if (ret) |
| 156 | return -1; |
| 157 | |
Sabrina Dubroca | 9f7401f | 2016-06-03 16:45:46 +0200 | [diff] [blame] | 158 | addattr16(n, MAX_MSG, type, port); |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 159 | |
| 160 | return 0; |
| 161 | } |
| 162 | |
| 163 | static int flower_parse_opt(struct filter_util *qu, char *handle, |
| 164 | int argc, char **argv, struct nlmsghdr *n) |
| 165 | { |
| 166 | int ret; |
| 167 | struct tcmsg *t = NLMSG_DATA(n); |
| 168 | struct rtattr *tail; |
Jamal Hadi Salim | 488b41d | 2016-01-10 14:56:31 -0500 | [diff] [blame] | 169 | __be16 eth_type = TC_H_MIN(t->tcm_info); |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 170 | __u8 ip_proto = 0xff; |
Amir Vadai | cfcabf1 | 2016-07-04 10:34:11 +0300 | [diff] [blame] | 171 | __u32 flags = 0; |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 172 | |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 173 | if (handle) { |
| 174 | ret = get_u32(&t->tcm_handle, handle, 0); |
| 175 | if (ret) { |
| 176 | fprintf(stderr, "Illegal \"handle\"\n"); |
| 177 | return -1; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | tail = (struct rtattr *) (((void *) n) + NLMSG_ALIGN(n->nlmsg_len)); |
| 182 | addattr_l(n, MAX_MSG, TCA_OPTIONS, NULL, 0); |
| 183 | |
Jamal Hadi Salim | 488b41d | 2016-01-10 14:56:31 -0500 | [diff] [blame] | 184 | if (argc == 0) { |
| 185 | /*at minimal we will match all ethertype packets */ |
| 186 | goto parse_done; |
| 187 | } |
| 188 | |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 189 | while (argc > 0) { |
| 190 | if (matches(*argv, "classid") == 0 || |
| 191 | matches(*argv, "flowid") == 0) { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 192 | unsigned int handle; |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 193 | |
| 194 | NEXT_ARG(); |
| 195 | ret = get_tc_classid(&handle, *argv); |
| 196 | if (ret) { |
| 197 | fprintf(stderr, "Illegal \"classid\"\n"); |
| 198 | return -1; |
| 199 | } |
| 200 | addattr_l(n, MAX_MSG, TCA_FLOWER_CLASSID, &handle, 4); |
Amir Vadai | cfcabf1 | 2016-07-04 10:34:11 +0300 | [diff] [blame] | 201 | } else if (matches(*argv, "skip_hw") == 0) { |
| 202 | flags |= TCA_CLS_FLAGS_SKIP_HW; |
| 203 | } else if (matches(*argv, "skip_sw") == 0) { |
| 204 | flags |= TCA_CLS_FLAGS_SKIP_SW; |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 205 | } else if (matches(*argv, "indev") == 0) { |
Phil Sutter | d17b136 | 2016-07-18 16:48:42 +0200 | [diff] [blame^] | 206 | char ifname[IFNAMSIZ] = {}; |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 207 | |
| 208 | NEXT_ARG(); |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 209 | strncpy(ifname, *argv, sizeof(ifname) - 1); |
| 210 | addattrstrz(n, MAX_MSG, TCA_FLOWER_INDEV, ifname); |
| 211 | } else if (matches(*argv, "dst_mac") == 0) { |
| 212 | NEXT_ARG(); |
| 213 | ret = flower_parse_eth_addr(*argv, |
| 214 | TCA_FLOWER_KEY_ETH_DST, |
| 215 | TCA_FLOWER_KEY_ETH_DST_MASK, |
| 216 | n); |
| 217 | if (ret < 0) { |
| 218 | fprintf(stderr, "Illegal \"dst_mac\"\n"); |
| 219 | return -1; |
| 220 | } |
| 221 | } else if (matches(*argv, "src_mac") == 0) { |
| 222 | NEXT_ARG(); |
| 223 | ret = flower_parse_eth_addr(*argv, |
| 224 | TCA_FLOWER_KEY_ETH_SRC, |
| 225 | TCA_FLOWER_KEY_ETH_SRC_MASK, |
| 226 | n); |
| 227 | if (ret < 0) { |
| 228 | fprintf(stderr, "Illegal \"src_mac\"\n"); |
| 229 | return -1; |
| 230 | } |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 231 | } else if (matches(*argv, "ip_proto") == 0) { |
| 232 | NEXT_ARG(); |
| 233 | ret = flower_parse_ip_proto(*argv, eth_type, |
| 234 | TCA_FLOWER_KEY_IP_PROTO, |
| 235 | &ip_proto, n); |
| 236 | if (ret < 0) { |
| 237 | fprintf(stderr, "Illegal \"ip_proto\"\n"); |
| 238 | return -1; |
| 239 | } |
| 240 | } else if (matches(*argv, "dst_ip") == 0) { |
| 241 | NEXT_ARG(); |
| 242 | ret = flower_parse_ip_addr(*argv, eth_type, |
| 243 | TCA_FLOWER_KEY_IPV4_DST, |
| 244 | TCA_FLOWER_KEY_IPV4_DST_MASK, |
| 245 | TCA_FLOWER_KEY_IPV6_DST, |
| 246 | TCA_FLOWER_KEY_IPV6_DST_MASK, |
| 247 | n); |
| 248 | if (ret < 0) { |
| 249 | fprintf(stderr, "Illegal \"dst_ip\"\n"); |
| 250 | return -1; |
| 251 | } |
| 252 | } else if (matches(*argv, "src_ip") == 0) { |
| 253 | NEXT_ARG(); |
| 254 | ret = flower_parse_ip_addr(*argv, eth_type, |
| 255 | TCA_FLOWER_KEY_IPV4_SRC, |
| 256 | TCA_FLOWER_KEY_IPV4_SRC_MASK, |
| 257 | TCA_FLOWER_KEY_IPV6_SRC, |
| 258 | TCA_FLOWER_KEY_IPV6_SRC_MASK, |
| 259 | n); |
| 260 | if (ret < 0) { |
| 261 | fprintf(stderr, "Illegal \"src_ip\"\n"); |
| 262 | return -1; |
| 263 | } |
| 264 | } else if (matches(*argv, "dst_port") == 0) { |
| 265 | NEXT_ARG(); |
| 266 | ret = flower_parse_port(*argv, ip_proto, |
| 267 | TCA_FLOWER_KEY_TCP_DST, |
| 268 | TCA_FLOWER_KEY_UDP_DST, n); |
| 269 | if (ret < 0) { |
| 270 | fprintf(stderr, "Illegal \"dst_port\"\n"); |
| 271 | return -1; |
| 272 | } |
| 273 | } else if (matches(*argv, "src_port") == 0) { |
| 274 | NEXT_ARG(); |
| 275 | ret = flower_parse_port(*argv, ip_proto, |
| 276 | TCA_FLOWER_KEY_TCP_SRC, |
| 277 | TCA_FLOWER_KEY_UDP_SRC, n); |
| 278 | if (ret < 0) { |
| 279 | fprintf(stderr, "Illegal \"src_port\"\n"); |
| 280 | return -1; |
| 281 | } |
| 282 | } else if (matches(*argv, "action") == 0) { |
| 283 | NEXT_ARG(); |
| 284 | ret = parse_action(&argc, &argv, TCA_FLOWER_ACT, n); |
| 285 | if (ret) { |
| 286 | fprintf(stderr, "Illegal \"action\"\n"); |
| 287 | return -1; |
| 288 | } |
| 289 | continue; |
| 290 | } else if (strcmp(*argv, "help") == 0) { |
| 291 | explain(); |
| 292 | return -1; |
| 293 | } else { |
| 294 | fprintf(stderr, "What is \"%s\"?\n", *argv); |
| 295 | explain(); |
| 296 | return -1; |
| 297 | } |
| 298 | argc--; argv++; |
| 299 | } |
| 300 | |
Jamal Hadi Salim | 488b41d | 2016-01-10 14:56:31 -0500 | [diff] [blame] | 301 | parse_done: |
Amir Vadai | cfcabf1 | 2016-07-04 10:34:11 +0300 | [diff] [blame] | 302 | addattr32(n, MAX_MSG, TCA_FLOWER_FLAGS, flags); |
| 303 | |
Jamal Hadi Salim | 488b41d | 2016-01-10 14:56:31 -0500 | [diff] [blame] | 304 | ret = addattr16(n, MAX_MSG, TCA_FLOWER_KEY_ETH_TYPE, eth_type); |
| 305 | if (ret) { |
| 306 | fprintf(stderr, "Illegal \"eth_type\"(0x%x)\n", |
| 307 | ntohs(eth_type)); |
| 308 | return -1; |
| 309 | } |
| 310 | |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 311 | tail->rta_len = (((void *)n)+n->nlmsg_len) - (void *)tail; |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 312 | |
| 313 | return 0; |
| 314 | } |
| 315 | |
| 316 | static int __mask_bits(char *addr, size_t len) |
| 317 | { |
| 318 | int bits = 0; |
| 319 | bool hole = false; |
| 320 | int i; |
| 321 | int j; |
| 322 | |
| 323 | for (i = 0; i < len; i++, addr++) { |
| 324 | for (j = 7; j >= 0; j--) { |
| 325 | if (((*addr) >> j) & 0x1) { |
| 326 | if (hole) |
| 327 | return -1; |
| 328 | bits++; |
| 329 | } else if (bits) { |
| 330 | hole = true; |
| 331 | } else{ |
| 332 | return -1; |
| 333 | } |
| 334 | } |
| 335 | } |
| 336 | return bits; |
| 337 | } |
| 338 | |
| 339 | static void flower_print_eth_addr(FILE *f, char *name, |
| 340 | struct rtattr *addr_attr, |
| 341 | struct rtattr *mask_attr) |
| 342 | { |
| 343 | SPRINT_BUF(b1); |
| 344 | int bits; |
| 345 | |
| 346 | if (!addr_attr || RTA_PAYLOAD(addr_attr) != ETH_ALEN) |
| 347 | return; |
| 348 | fprintf(f, "\n %s %s", name, ll_addr_n2a(RTA_DATA(addr_attr), ETH_ALEN, |
| 349 | 0, b1, sizeof(b1))); |
| 350 | if (!mask_attr || RTA_PAYLOAD(mask_attr) != ETH_ALEN) |
| 351 | return; |
| 352 | bits = __mask_bits(RTA_DATA(mask_attr), ETH_ALEN); |
| 353 | if (bits < 0) |
| 354 | fprintf(f, "/%s", ll_addr_n2a(RTA_DATA(mask_attr), ETH_ALEN, |
| 355 | 0, b1, sizeof(b1))); |
| 356 | else if (bits < ETH_ALEN * 8) |
| 357 | fprintf(f, "/%d", bits); |
| 358 | } |
| 359 | |
| 360 | static void flower_print_eth_type(FILE *f, __be16 *p_eth_type, |
| 361 | struct rtattr *eth_type_attr) |
| 362 | { |
| 363 | __be16 eth_type; |
| 364 | |
| 365 | if (!eth_type_attr) |
| 366 | return; |
| 367 | |
| 368 | eth_type = rta_getattr_u16(eth_type_attr); |
| 369 | fprintf(f, "\n eth_type "); |
| 370 | if (eth_type == htons(ETH_P_IP)) |
| 371 | fprintf(f, "ipv4"); |
| 372 | else if (eth_type == htons(ETH_P_IPV6)) |
| 373 | fprintf(f, "ipv6"); |
| 374 | else |
| 375 | fprintf(f, "%04x", ntohs(eth_type)); |
| 376 | *p_eth_type = eth_type; |
| 377 | } |
| 378 | |
| 379 | static void flower_print_ip_proto(FILE *f, __u8 *p_ip_proto, |
| 380 | struct rtattr *ip_proto_attr) |
| 381 | { |
| 382 | __u8 ip_proto; |
| 383 | |
| 384 | if (!ip_proto_attr) |
| 385 | return; |
| 386 | |
| 387 | ip_proto = rta_getattr_u8(ip_proto_attr); |
| 388 | fprintf(f, "\n ip_proto "); |
| 389 | if (ip_proto == IPPROTO_TCP) |
| 390 | fprintf(f, "tcp"); |
| 391 | else if (ip_proto == IPPROTO_UDP) |
| 392 | fprintf(f, "udp"); |
| 393 | else |
| 394 | fprintf(f, "%02x", ip_proto); |
| 395 | *p_ip_proto = ip_proto; |
| 396 | } |
| 397 | |
| 398 | static void flower_print_ip_addr(FILE *f, char *name, __be16 eth_type, |
| 399 | struct rtattr *addr4_attr, |
| 400 | struct rtattr *mask4_attr, |
| 401 | struct rtattr *addr6_attr, |
| 402 | struct rtattr *mask6_attr) |
| 403 | { |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 404 | struct rtattr *addr_attr; |
| 405 | struct rtattr *mask_attr; |
| 406 | int family; |
| 407 | size_t len; |
| 408 | int bits; |
| 409 | |
| 410 | if (eth_type == htons(ETH_P_IP)) { |
| 411 | family = AF_INET; |
| 412 | addr_attr = addr4_attr; |
| 413 | mask_attr = mask4_attr; |
| 414 | len = 4; |
| 415 | } else if (eth_type == htons(ETH_P_IPV6)) { |
| 416 | family = AF_INET6; |
| 417 | addr_attr = addr6_attr; |
| 418 | mask_attr = mask6_attr; |
| 419 | len = 16; |
| 420 | } else { |
| 421 | return; |
| 422 | } |
| 423 | if (!addr_attr || RTA_PAYLOAD(addr_attr) != len) |
| 424 | return; |
Phil Sutter | 7faf158 | 2016-03-22 19:35:18 +0100 | [diff] [blame] | 425 | fprintf(f, "\n %s %s", name, rt_addr_n2a_rta(family, addr_attr)); |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 426 | if (!mask_attr || RTA_PAYLOAD(mask_attr) != len) |
| 427 | return; |
| 428 | bits = __mask_bits(RTA_DATA(mask_attr), len); |
| 429 | if (bits < 0) |
Phil Sutter | 7faf158 | 2016-03-22 19:35:18 +0100 | [diff] [blame] | 430 | fprintf(f, "/%s", rt_addr_n2a_rta(family, mask_attr)); |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 431 | else if (bits < len * 8) |
| 432 | fprintf(f, "/%d", bits); |
| 433 | } |
| 434 | |
| 435 | static void flower_print_port(FILE *f, char *name, __u8 ip_proto, |
| 436 | struct rtattr *tcp_attr, |
| 437 | struct rtattr *udp_attr) |
| 438 | { |
| 439 | struct rtattr *attr; |
| 440 | |
| 441 | if (ip_proto == IPPROTO_TCP) |
| 442 | attr = tcp_attr; |
| 443 | else if (ip_proto == IPPROTO_UDP) |
| 444 | attr = udp_attr; |
| 445 | else |
| 446 | return; |
| 447 | if (!attr) |
| 448 | return; |
| 449 | fprintf(f, "\n %s %d", name, ntohs(rta_getattr_u16(attr))); |
| 450 | } |
| 451 | |
| 452 | static int flower_print_opt(struct filter_util *qu, FILE *f, |
| 453 | struct rtattr *opt, __u32 handle) |
| 454 | { |
| 455 | struct rtattr *tb[TCA_FLOWER_MAX + 1]; |
| 456 | __be16 eth_type = 0; |
| 457 | __u8 ip_proto = 0xff; |
| 458 | |
| 459 | if (!opt) |
| 460 | return 0; |
| 461 | |
| 462 | parse_rtattr_nested(tb, TCA_FLOWER_MAX, opt); |
| 463 | |
| 464 | if (handle) |
| 465 | fprintf(f, "handle 0x%x ", handle); |
| 466 | |
| 467 | if (tb[TCA_FLOWER_CLASSID]) { |
| 468 | SPRINT_BUF(b1); |
| 469 | fprintf(f, "classid %s ", |
Jamal Hadi Salim | 488b41d | 2016-01-10 14:56:31 -0500 | [diff] [blame] | 470 | sprint_tc_classid(rta_getattr_u32(tb[TCA_FLOWER_CLASSID]), |
| 471 | b1)); |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | if (tb[TCA_FLOWER_INDEV]) { |
| 475 | struct rtattr *attr = tb[TCA_FLOWER_INDEV]; |
| 476 | |
| 477 | fprintf(f, "\n indev %s", rta_getattr_str(attr)); |
| 478 | } |
| 479 | |
| 480 | flower_print_eth_addr(f, "dst_mac", tb[TCA_FLOWER_KEY_ETH_DST], |
| 481 | tb[TCA_FLOWER_KEY_ETH_DST_MASK]); |
| 482 | flower_print_eth_addr(f, "src_mac", tb[TCA_FLOWER_KEY_ETH_SRC], |
| 483 | tb[TCA_FLOWER_KEY_ETH_SRC_MASK]); |
| 484 | |
| 485 | flower_print_eth_type(f, ð_type, tb[TCA_FLOWER_KEY_ETH_TYPE]); |
| 486 | flower_print_ip_proto(f, &ip_proto, tb[TCA_FLOWER_KEY_IP_PROTO]); |
| 487 | |
| 488 | flower_print_ip_addr(f, "dst_ip", eth_type, |
| 489 | tb[TCA_FLOWER_KEY_IPV4_DST], |
| 490 | tb[TCA_FLOWER_KEY_IPV4_DST_MASK], |
| 491 | tb[TCA_FLOWER_KEY_IPV6_DST], |
| 492 | tb[TCA_FLOWER_KEY_IPV6_DST_MASK]); |
| 493 | |
| 494 | flower_print_ip_addr(f, "src_ip", eth_type, |
| 495 | tb[TCA_FLOWER_KEY_IPV4_SRC], |
| 496 | tb[TCA_FLOWER_KEY_IPV4_SRC_MASK], |
| 497 | tb[TCA_FLOWER_KEY_IPV6_SRC], |
| 498 | tb[TCA_FLOWER_KEY_IPV6_SRC_MASK]); |
| 499 | |
| 500 | flower_print_port(f, "dst_port", ip_proto, |
| 501 | tb[TCA_FLOWER_KEY_TCP_DST], |
| 502 | tb[TCA_FLOWER_KEY_UDP_DST]); |
| 503 | |
| 504 | flower_print_port(f, "src_port", ip_proto, |
| 505 | tb[TCA_FLOWER_KEY_TCP_SRC], |
| 506 | tb[TCA_FLOWER_KEY_UDP_SRC]); |
| 507 | |
Amir Vadai | cfcabf1 | 2016-07-04 10:34:11 +0300 | [diff] [blame] | 508 | if (tb[TCA_FLOWER_FLAGS]) { |
| 509 | __u32 flags = rta_getattr_u32(tb[TCA_FLOWER_FLAGS]); |
| 510 | |
| 511 | if (flags & TCA_CLS_FLAGS_SKIP_HW) |
| 512 | fprintf(f, "\n skip_hw"); |
| 513 | if (flags & TCA_CLS_FLAGS_SKIP_SW) |
| 514 | fprintf(f, "\n skip_sw"); |
| 515 | } |
| 516 | |
Jiri Pirko | 30eb304 | 2015-05-15 13:34:04 +0200 | [diff] [blame] | 517 | if (tb[TCA_FLOWER_ACT]) { |
| 518 | tc_print_action(f, tb[TCA_FLOWER_ACT]); |
| 519 | } |
| 520 | |
| 521 | return 0; |
| 522 | } |
| 523 | |
| 524 | struct filter_util flower_filter_util = { |
| 525 | .id = "flower", |
| 526 | .parse_fopt = flower_parse_opt, |
| 527 | .print_fopt = flower_print_opt, |
| 528 | }; |