net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 1 | /* $USAGI: $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (C)2004 USAGI/WIDE Project |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | /* |
| 21 | * based on iproute.c |
| 22 | */ |
| 23 | /* |
| 24 | * Authors: |
| 25 | * Masahide NAKAMURA @USAGI |
| 26 | */ |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <string.h> |
| 31 | #include <netdb.h> |
| 32 | #include <linux/xfrm.h> |
| 33 | #include "utils.h" |
| 34 | #include "xfrm.h" |
| 35 | #include "ip_common.h" |
| 36 | |
| 37 | //#define NLMSG_FLUSH_BUF_SIZE (4096-512) |
| 38 | #define NLMSG_FLUSH_BUF_SIZE 8192 |
| 39 | |
| 40 | /* |
| 41 | * Receiving buffer defines: |
| 42 | * nlmsg |
| 43 | * data = struct xfrm_usersa_info |
| 44 | * rtattr |
| 45 | * rtattr |
| 46 | * ... (max count of rtattr is XFRM_MAX_DEPTH) |
| 47 | * |
| 48 | * each rtattr data = struct xfrm_algo(dynamic size) or xfrm_address_t |
| 49 | */ |
| 50 | #define NLMSG_BUF_SIZE 4096 |
| 51 | #define RTA_BUF_SIZE 2048 |
| 52 | #define XFRM_ALGO_KEY_BUF_SIZE 512 |
| 53 | |
| 54 | static void usage(void) __attribute__((noreturn)); |
| 55 | |
| 56 | static void usage(void) |
| 57 | { |
| 58 | fprintf(stderr, "Usage: ip xfrm state { add | update } ID [ ALGO-LIST ] [ mode MODE ]\n"); |
| 59 | fprintf(stderr, " [ reqid REQID ] [ FLAG-LIST ] [ sel SELECTOR ] [ LIMIT-LIST ]\n"); |
| 60 | |
| 61 | fprintf(stderr, "Usage: ip xfrm state { delete | get } ID\n"); |
| 62 | fprintf(stderr, "Usage: ip xfrm state { flush | list } [ ID ] [ mode MODE ] [ reqid REQID ]\n"); |
| 63 | fprintf(stderr, " [ FLAG_LIST ]\n"); |
| 64 | |
| 65 | fprintf(stderr, "ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM_PROTO ] [ spi SPI ]\n"); |
org[shemminger]!nakam | 29aa4dd | 2004-09-28 18:40:49 +0000 | [diff] [blame^] | 66 | //fprintf(stderr, "XFRM_PROTO := [ esp | ah | comp ]\n"); |
net[shemminger]!shemminger | 9e566a4 | 2004-07-30 20:26:15 +0000 | [diff] [blame] | 67 | fprintf(stderr, "XFRM_PROTO := [ "); |
org[shemminger]!nakam | 29aa4dd | 2004-09-28 18:40:49 +0000 | [diff] [blame^] | 68 | fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_ESP)); |
| 69 | fprintf(stderr, "%s | ", strxf_xfrmproto(IPPROTO_AH)); |
| 70 | fprintf(stderr, "%s ", strxf_xfrmproto(IPPROTO_COMP)); |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 71 | fprintf(stderr, "]\n"); |
net[shemminger]!shemminger | 9e566a4 | 2004-07-30 20:26:15 +0000 | [diff] [blame] | 72 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 73 | //fprintf(stderr, "SPI - security parameter index(default=0)\n"); |
| 74 | |
| 75 | fprintf(stderr, "MODE := [ transport | tunnel ](default=transport)\n"); |
| 76 | //fprintf(stderr, "REQID - number(default=0)\n"); |
| 77 | |
| 78 | fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] [ flag FLAG ]\n"); |
| 79 | fprintf(stderr, "FLAG := [ noecn ]\n"); |
| 80 | |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 81 | fprintf(stderr, "ALGO-LIST := [ ALGO-LIST ] | [ ALGO ]\n"); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 82 | fprintf(stderr, "ALGO := ALGO_TYPE ALGO_NAME ALGO_KEY\n"); |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 83 | fprintf(stderr, "ALGO_TYPE := [ "); |
| 84 | fprintf(stderr, "%s | ", strxf_algotype(XFRMA_ALG_CRYPT)); |
| 85 | fprintf(stderr, "%s | ", strxf_algotype(XFRMA_ALG_AUTH)); |
| 86 | fprintf(stderr, "%s ", strxf_algotype(XFRMA_ALG_COMP)); |
| 87 | fprintf(stderr, "]\n"); |
| 88 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 89 | //fprintf(stderr, "ALGO_NAME - algorithm name\n"); |
| 90 | //fprintf(stderr, "ALGO_KEY - algorithm key\n"); |
| 91 | |
| 92 | fprintf(stderr, "SELECTOR := src ADDR[/PLEN] dst ADDR[/PLEN] [ upspec UPSPEC ] [ dev DEV ]\n"); |
| 93 | |
| 94 | fprintf(stderr, "UPSPEC := proto PROTO [ sport PORT ] [ dport PORT ]\n"); |
| 95 | |
| 96 | //fprintf(stderr, "DEV - device name(default=none)\n"); |
| 97 | fprintf(stderr, "LIMIT-LIST := [ LIMIT-LIST ] | [ limit LIMIT ]\n"); |
| 98 | fprintf(stderr, "LIMIT := [ [time-soft|time-hard|time-use-soft|time-use-hard] SECONDS ] |\n"); |
| 99 | fprintf(stderr, " [ [byte-soft|byte-hard] SIZE ] | [ [packet-soft|packet-hard] COUNT ]\n"); |
| 100 | exit(-1); |
| 101 | } |
| 102 | |
| 103 | static int xfrm_algo_parse(struct xfrm_algo *alg, enum xfrm_attr_type_t type, |
| 104 | char *name, char *key, int max) |
| 105 | { |
| 106 | int len; |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 107 | int slen = strlen(key); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 108 | |
| 109 | #if 1 |
| 110 | /* XXX: verifying both name and key is required! */ |
| 111 | fprintf(stderr, "warning: ALGONAME/ALGOKEY will send to kernel promiscuously!(verifying them isn't implemented yet)\n"); |
| 112 | #endif |
| 113 | |
| 114 | strncpy(alg->alg_name, name, sizeof(alg->alg_name)); |
| 115 | |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 116 | if (slen > 2 && strncmp(key, "0x", 2) == 0) { |
org[shemminger]!nakam | 54f7328 | 2004-09-28 18:36:52 +0000 | [diff] [blame] | 117 | /* split two chars "0x" from the top */ |
| 118 | char *p = key + 2; |
| 119 | int plen = slen - 2; |
| 120 | int i; |
| 121 | int j; |
| 122 | |
| 123 | /* Converting hexadecimal numbered string into real key; |
| 124 | * Convert each two chars into one char(value). If number |
| 125 | * of the length is odd, add zero on the top for rounding. |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 126 | */ |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 127 | |
org[shemminger]!nakam | 54f7328 | 2004-09-28 18:36:52 +0000 | [diff] [blame] | 128 | /* calculate length of the converted values(real key) */ |
| 129 | len = (plen + 1) / 2; |
| 130 | if (len > max) |
| 131 | invarg("\"ALGOKEY\" makes buffer overflow\n", key); |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 132 | |
org[shemminger]!nakam | 54f7328 | 2004-09-28 18:36:52 +0000 | [diff] [blame] | 133 | for (i = - (plen % 2), j = 0; j < len; i += 2, j++) { |
| 134 | char vbuf[3]; |
| 135 | char val; |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 136 | |
org[shemminger]!nakam | 54f7328 | 2004-09-28 18:36:52 +0000 | [diff] [blame] | 137 | vbuf[0] = i >= 0 ? p[i] : '0'; |
| 138 | vbuf[1] = p[i + 1]; |
| 139 | vbuf[2] = '\0'; |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 140 | |
org[shemminger]!nakam | 54f7328 | 2004-09-28 18:36:52 +0000 | [diff] [blame] | 141 | if (get_u8(&val, vbuf, 16)) |
| 142 | invarg("\"ALGOKEY\" is invalid", key); |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 143 | |
org[shemminger]!nakam | 54f7328 | 2004-09-28 18:36:52 +0000 | [diff] [blame] | 144 | alg->alg_key[j] = val; |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 145 | } |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 146 | } else { |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 147 | len = slen; |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 148 | if (len > 0) { |
| 149 | if (len > max) |
| 150 | invarg("\"ALGOKEY\" makes buffer overflow\n", key); |
| 151 | |
| 152 | strncpy(alg->alg_key, key, len); |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | alg->alg_key_len = len * 8; |
| 157 | |
| 158 | return 0; |
| 159 | } |
| 160 | |
| 161 | static int xfrm_state_flag_parse(__u8 *flags, int *argcp, char ***argvp) |
| 162 | { |
| 163 | int argc = *argcp; |
| 164 | char **argv = *argvp; |
net[shemminger]!shemminger | 9e566a4 | 2004-07-30 20:26:15 +0000 | [diff] [blame] | 165 | int len = strlen(*argv); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 166 | |
net[shemminger]!shemminger | 9e566a4 | 2004-07-30 20:26:15 +0000 | [diff] [blame] | 167 | if (len > 2 && strncmp(*argv, "0x", 2) == 0) { |
| 168 | __u8 val = 0; |
| 169 | |
| 170 | if (get_u8(&val, *argv, 16)) |
| 171 | invarg("\"FLAG\" is invalid", *argv); |
| 172 | *flags = val; |
| 173 | } else { |
| 174 | if (strcmp(*argv, "noecn") == 0) |
| 175 | *flags |= XFRM_STATE_NOECN; |
| 176 | else |
| 177 | invarg("\"FLAG\" is invalid", *argv); |
| 178 | } |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 179 | |
| 180 | filter.state_flags_mask = XFRM_FILTER_MASK_FULL; |
| 181 | |
| 182 | *argcp = argc; |
| 183 | *argvp = argv; |
| 184 | |
| 185 | return 0; |
| 186 | } |
| 187 | |
| 188 | static int xfrm_state_modify(int cmd, unsigned flags, int argc, char **argv) |
| 189 | { |
| 190 | struct rtnl_handle rth; |
| 191 | struct { |
| 192 | struct nlmsghdr n; |
| 193 | struct xfrm_usersa_info xsinfo; |
| 194 | char buf[RTA_BUF_SIZE]; |
| 195 | } req; |
| 196 | char *idp = NULL; |
| 197 | char *ealgop = NULL; |
| 198 | char *aalgop = NULL; |
| 199 | char *calgop = NULL; |
| 200 | |
| 201 | memset(&req, 0, sizeof(req)); |
| 202 | |
| 203 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsinfo)); |
| 204 | req.n.nlmsg_flags = NLM_F_REQUEST|flags; |
| 205 | req.n.nlmsg_type = cmd; |
| 206 | req.xsinfo.family = preferred_family; |
| 207 | |
| 208 | req.xsinfo.lft.soft_byte_limit = XFRM_INF; |
| 209 | req.xsinfo.lft.hard_byte_limit = XFRM_INF; |
| 210 | req.xsinfo.lft.soft_packet_limit = XFRM_INF; |
| 211 | req.xsinfo.lft.hard_packet_limit = XFRM_INF; |
| 212 | |
| 213 | while (argc > 0) { |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 214 | if (strcmp(*argv, "mode") == 0) { |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 215 | NEXT_ARG(); |
| 216 | xfrm_mode_parse(&req.xsinfo.mode, &argc, &argv); |
| 217 | } else if (strcmp(*argv, "reqid") == 0) { |
| 218 | NEXT_ARG(); |
| 219 | xfrm_reqid_parse(&req.xsinfo.reqid, &argc, &argv); |
| 220 | } else if (strcmp(*argv, "flag") == 0) { |
| 221 | NEXT_ARG(); |
| 222 | xfrm_state_flag_parse(&req.xsinfo.flags, &argc, &argv); |
| 223 | } else if (strcmp(*argv, "sel") == 0) { |
| 224 | NEXT_ARG(); |
| 225 | xfrm_selector_parse(&req.xsinfo.sel, &argc, &argv); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 226 | } else if (strcmp(*argv, "limit") == 0) { |
| 227 | NEXT_ARG(); |
| 228 | xfrm_lifetime_cfg_parse(&req.xsinfo.lft, &argc, &argv); |
| 229 | } else { |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 230 | /* try to assume ALGO */ |
| 231 | int type = xfrm_algotype_getbyname(*argv); |
| 232 | switch (type) { |
| 233 | case XFRMA_ALG_CRYPT: |
| 234 | case XFRMA_ALG_AUTH: |
| 235 | case XFRMA_ALG_COMP: |
| 236 | { |
| 237 | /* ALGO */ |
| 238 | struct { |
| 239 | struct xfrm_algo alg; |
| 240 | char buf[XFRM_ALGO_KEY_BUF_SIZE]; |
| 241 | } alg; |
| 242 | int len; |
| 243 | char *name; |
| 244 | char *key; |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 245 | |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 246 | switch (type) { |
| 247 | case XFRMA_ALG_CRYPT: |
| 248 | if (ealgop) |
| 249 | duparg("ALGOTYPE", *argv); |
| 250 | ealgop = *argv; |
| 251 | break; |
| 252 | case XFRMA_ALG_AUTH: |
| 253 | if (aalgop) |
| 254 | duparg("ALGOTYPE", *argv); |
| 255 | aalgop = *argv; |
| 256 | break; |
| 257 | case XFRMA_ALG_COMP: |
| 258 | if (calgop) |
| 259 | duparg("ALGOTYPE", *argv); |
| 260 | calgop = *argv; |
| 261 | break; |
| 262 | default: |
| 263 | /* not reached */ |
| 264 | invarg("\"ALGOTYPE\" is invalid\n", *argv); |
| 265 | } |
| 266 | |
| 267 | if (!NEXT_ARG_OK()) |
| 268 | missarg("ALGONAME"); |
| 269 | NEXT_ARG(); |
| 270 | name = *argv; |
| 271 | |
| 272 | if (!NEXT_ARG_OK()) |
| 273 | missarg("ALGOKEY"); |
| 274 | NEXT_ARG(); |
| 275 | key = *argv; |
| 276 | |
| 277 | memset(&alg, 0, sizeof(alg)); |
| 278 | |
| 279 | xfrm_algo_parse((void *)&alg, type, name, key, |
| 280 | sizeof(alg.buf)); |
| 281 | len = sizeof(struct xfrm_algo) + alg.alg.alg_key_len; |
| 282 | |
| 283 | addattr_l(&req.n, sizeof(req.buf), type, |
| 284 | (void *)&alg, len); |
| 285 | break; |
| 286 | } |
| 287 | default: |
| 288 | /* try to assume ID */ |
| 289 | if (idp) |
| 290 | invarg("unknown", *argv); |
| 291 | idp = *argv; |
| 292 | |
| 293 | /* ID */ |
| 294 | xfrm_id_parse(&req.xsinfo.saddr, &req.xsinfo.id, |
| 295 | &req.xsinfo.family, 0, &argc, &argv); |
| 296 | if (preferred_family == AF_UNSPEC) |
| 297 | preferred_family = req.xsinfo.family; |
| 298 | } |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 299 | } |
| 300 | argc--; argv++; |
| 301 | } |
| 302 | |
| 303 | if (!idp) { |
| 304 | fprintf(stderr, "Not enough information: \"ID\" is required\n"); |
| 305 | exit(1); |
| 306 | } |
| 307 | |
| 308 | if (ealgop || aalgop || calgop) { |
| 309 | if (req.xsinfo.id.proto != IPPROTO_ESP && |
| 310 | req.xsinfo.id.proto != IPPROTO_AH && |
| 311 | req.xsinfo.id.proto != IPPROTO_COMP) { |
org[shemminger]!nakam | 29aa4dd | 2004-09-28 18:40:49 +0000 | [diff] [blame^] | 312 | fprintf(stderr, "\"ALGO\" is invalid with proto=%s\n", strxf_xfrmproto(req.xsinfo.id.proto)); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 313 | exit(1); |
| 314 | } |
| 315 | } else { |
| 316 | if (req.xsinfo.id.proto == IPPROTO_ESP || |
| 317 | req.xsinfo.id.proto == IPPROTO_AH || |
| 318 | req.xsinfo.id.proto == IPPROTO_COMP) { |
org[shemminger]!nakam | 29aa4dd | 2004-09-28 18:40:49 +0000 | [diff] [blame^] | 319 | fprintf(stderr, "\"ALGO\" is required with proto=%s\n", strxf_xfrmproto(req.xsinfo.id.proto)); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 320 | exit (1); |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0) |
| 325 | exit(1); |
| 326 | |
| 327 | if (req.xsinfo.family == AF_UNSPEC) |
| 328 | req.xsinfo.family = AF_INET; |
| 329 | |
| 330 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) |
| 331 | exit(2); |
| 332 | |
| 333 | rtnl_close(&rth); |
| 334 | |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | static int xfrm_state_filter_match(struct xfrm_usersa_info *xsinfo) |
| 339 | { |
| 340 | if (!filter.use) |
| 341 | return 1; |
| 342 | |
| 343 | if (filter.id_src_mask) |
| 344 | if (memcmp(&xsinfo->saddr, &filter.xsinfo.saddr, |
| 345 | filter.id_src_mask) != 0) |
| 346 | return 0; |
| 347 | if (filter.id_dst_mask) |
| 348 | if (memcmp(&xsinfo->id.daddr, &filter.xsinfo.id.daddr, |
| 349 | filter.id_dst_mask) != 0) |
| 350 | return 0; |
| 351 | if ((xsinfo->id.proto^filter.xsinfo.id.proto)&filter.id_proto_mask) |
| 352 | return 0; |
| 353 | if ((xsinfo->id.spi^filter.xsinfo.id.spi)&filter.id_spi_mask) |
| 354 | return 0; |
| 355 | if ((xsinfo->mode^filter.xsinfo.mode)&filter.mode_mask) |
| 356 | return 0; |
| 357 | if ((xsinfo->reqid^filter.xsinfo.reqid)&filter.reqid_mask) |
| 358 | return 0; |
| 359 | if (filter.state_flags_mask) |
| 360 | if ((xsinfo->flags & filter.xsinfo.flags) == 0) |
| 361 | return 0; |
| 362 | |
| 363 | return 1; |
| 364 | } |
| 365 | |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 366 | static int xfrm_selector_iszero(struct xfrm_selector *s) |
| 367 | { |
| 368 | struct xfrm_selector s0; |
| 369 | |
| 370 | memset(&s0, 0, sizeof(s0)); |
| 371 | |
| 372 | return (memcmp(&s0, s, sizeof(s0)) == 0); |
| 373 | } |
| 374 | |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 375 | static int xfrm_state_print(const struct sockaddr_nl *who, |
| 376 | const struct nlmsghdr *n, |
| 377 | void *arg) |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 378 | { |
| 379 | FILE *fp = (FILE*)arg; |
| 380 | struct xfrm_usersa_info *xsinfo = NLMSG_DATA(n); |
| 381 | int len = n->nlmsg_len; |
| 382 | struct rtattr * tb[XFRMA_MAX+1]; |
| 383 | int ntb; |
| 384 | |
| 385 | if (n->nlmsg_type != XFRM_MSG_NEWSA && |
| 386 | n->nlmsg_type != XFRM_MSG_DELSA) { |
| 387 | fprintf(stderr, "Not a state: %08x %08x %08x\n", |
| 388 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | len -= NLMSG_LENGTH(sizeof(*xsinfo)); |
| 393 | if (len < 0) { |
| 394 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); |
| 395 | return -1; |
| 396 | } |
| 397 | |
| 398 | if (!xfrm_state_filter_match(xsinfo)) |
| 399 | return 0; |
| 400 | |
| 401 | memset(tb, 0, sizeof(tb)); |
| 402 | ntb = parse_rtattr_byindex(tb, XFRM_MAX_DEPTH, XFRMS_RTA(xsinfo), len); |
| 403 | |
| 404 | if (n->nlmsg_type == XFRM_MSG_DELSA) |
| 405 | fprintf(fp, "Deleted "); |
| 406 | |
| 407 | xfrm_id_info_print(&xsinfo->saddr, &xsinfo->id, xsinfo->mode, |
| 408 | xsinfo->reqid, xsinfo->family, fp, NULL); |
| 409 | |
net[shemminger]!shemminger | 9e566a4 | 2004-07-30 20:26:15 +0000 | [diff] [blame] | 410 | fprintf(fp, "\t"); |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 411 | fprintf(fp, "replay-window %d ", xsinfo->replay_window); |
| 412 | if (show_stats > 0) |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 413 | fprintf(fp, "seq 0x%08u ", xsinfo->seq); |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 414 | if (xsinfo->flags) { |
| 415 | fprintf(fp, "flag 0x%s", strxf_flags(xsinfo->flags)); |
| 416 | if (show_stats > 0) { |
| 417 | if (xsinfo->flags) { |
| 418 | fprintf(fp, "("); |
| 419 | if (xsinfo->flags & XFRM_STATE_NOECN) |
| 420 | fprintf(fp, "noecn"); |
| 421 | fprintf(fp, ")"); |
| 422 | } |
net[shemminger]!shemminger | 9e566a4 | 2004-07-30 20:26:15 +0000 | [diff] [blame] | 423 | } |
| 424 | } |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 425 | fprintf(fp, "%s", _SL_); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 426 | |
| 427 | xfrm_xfrma_print(tb, ntb, xsinfo->family, fp, "\t"); |
| 428 | |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 429 | if (!xfrm_selector_iszero(&xsinfo->sel)) |
| 430 | xfrm_selector_print(&xsinfo->sel, xsinfo->family, fp, "\tsel "); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 431 | |
| 432 | if (show_stats > 0) { |
| 433 | xfrm_lifetime_print(&xsinfo->lft, &xsinfo->curlft, fp, "\t"); |
| 434 | xfrm_stats_print(&xsinfo->stats, fp, "\t"); |
| 435 | } |
| 436 | |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 437 | if (oneline) |
| 438 | fprintf(fp, "\n"); |
| 439 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 440 | return 0; |
| 441 | } |
| 442 | |
| 443 | static int xfrm_state_get_or_delete(int argc, char **argv, int delete) |
| 444 | { |
| 445 | struct rtnl_handle rth; |
| 446 | struct { |
| 447 | struct nlmsghdr n; |
| 448 | struct xfrm_usersa_id xsid; |
| 449 | } req; |
| 450 | struct xfrm_id id; |
| 451 | char *idp = NULL; |
| 452 | |
| 453 | memset(&req, 0, sizeof(req)); |
| 454 | |
| 455 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsid)); |
| 456 | req.n.nlmsg_flags = NLM_F_REQUEST; |
| 457 | req.n.nlmsg_type = delete ? XFRM_MSG_DELSA : XFRM_MSG_GETSA; |
| 458 | req.xsid.family = preferred_family; |
| 459 | |
| 460 | while (argc > 0) { |
| 461 | /* |
| 462 | * XXX: Source address is not used and ignore it to follow |
| 463 | * XXX: a manner of setkey e.g. in the case of deleting/getting |
| 464 | * XXX: message of IPsec SA. |
| 465 | */ |
| 466 | xfrm_address_t ignore_saddr; |
| 467 | |
| 468 | if (idp) |
| 469 | invarg("unknown", *argv); |
| 470 | idp = *argv; |
| 471 | |
| 472 | /* ID */ |
| 473 | memset(&id, 0, sizeof(id)); |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 474 | xfrm_id_parse(&ignore_saddr, &id, &req.xsid.family, 0, |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 475 | &argc, &argv); |
| 476 | |
| 477 | memcpy(&req.xsid.daddr, &id.daddr, sizeof(req.xsid.daddr)); |
| 478 | req.xsid.spi = id.spi; |
| 479 | req.xsid.proto = id.proto; |
| 480 | |
| 481 | argc--; argv++; |
| 482 | } |
| 483 | |
| 484 | if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0) |
| 485 | exit(1); |
| 486 | |
| 487 | if (req.xsid.family == AF_UNSPEC) |
| 488 | req.xsid.family = AF_INET; |
| 489 | |
| 490 | if (delete) { |
| 491 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) |
| 492 | exit(2); |
| 493 | } else { |
| 494 | char buf[NLMSG_BUF_SIZE]; |
| 495 | struct nlmsghdr *res_n = (struct nlmsghdr *)buf; |
| 496 | |
| 497 | memset(buf, 0, sizeof(buf)); |
| 498 | |
| 499 | if (rtnl_talk(&rth, &req.n, 0, 0, res_n, NULL, NULL) < 0) |
| 500 | exit(2); |
| 501 | |
| 502 | if (xfrm_state_print(NULL, res_n, (void*)stdout) < 0) { |
| 503 | fprintf(stderr, "An error :-)\n"); |
| 504 | exit(1); |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | rtnl_close(&rth); |
| 509 | |
| 510 | return 0; |
| 511 | } |
| 512 | |
| 513 | /* |
| 514 | * With an existing state of nlmsg, make new nlmsg for deleting the state |
| 515 | * and store it to buffer. |
| 516 | */ |
osdl.net!shemminger | 6dc9f01 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 517 | static int xfrm_state_keep(const struct sockaddr_nl *who, |
| 518 | const struct nlmsghdr *n, |
| 519 | void *arg) |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 520 | { |
| 521 | struct xfrm_buffer *xb = (struct xfrm_buffer *)arg; |
| 522 | struct rtnl_handle *rth = xb->rth; |
| 523 | struct xfrm_usersa_info *xsinfo = NLMSG_DATA(n); |
| 524 | int len = n->nlmsg_len; |
| 525 | struct nlmsghdr *new_n; |
| 526 | struct xfrm_usersa_id *xsid; |
| 527 | |
| 528 | if (n->nlmsg_type != XFRM_MSG_NEWSA) { |
| 529 | fprintf(stderr, "Not a state: %08x %08x %08x\n", |
| 530 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); |
| 531 | return 0; |
| 532 | } |
| 533 | |
| 534 | len -= NLMSG_LENGTH(sizeof(*xsinfo)); |
| 535 | if (len < 0) { |
| 536 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); |
| 537 | return -1; |
| 538 | } |
| 539 | |
| 540 | if (!xfrm_state_filter_match(xsinfo)) |
| 541 | return 0; |
| 542 | |
| 543 | if (xb->offset > xb->size) { |
| 544 | fprintf(stderr, "Flush buffer overflow\n"); |
| 545 | return -1; |
| 546 | } |
| 547 | |
| 548 | new_n = (struct nlmsghdr *)(xb->buf + xb->offset); |
| 549 | new_n->nlmsg_len = NLMSG_LENGTH(sizeof(*xsid)); |
| 550 | new_n->nlmsg_flags = NLM_F_REQUEST; |
| 551 | new_n->nlmsg_type = XFRM_MSG_DELSA; |
| 552 | new_n->nlmsg_seq = ++rth->seq; |
| 553 | |
| 554 | xsid = NLMSG_DATA(new_n); |
| 555 | xsid->family = xsinfo->family; |
| 556 | memcpy(&xsid->daddr, &xsinfo->id.daddr, sizeof(xsid->daddr)); |
| 557 | xsid->spi = xsinfo->id.spi; |
| 558 | xsid->proto = xsinfo->id.proto; |
| 559 | |
| 560 | xb->offset += new_n->nlmsg_len; |
| 561 | xb->nlmsg_count ++; |
| 562 | |
| 563 | return 0; |
| 564 | } |
| 565 | |
| 566 | static int xfrm_state_list_or_flush(int argc, char **argv, int flush) |
| 567 | { |
| 568 | char *idp = NULL; |
| 569 | struct rtnl_handle rth; |
| 570 | |
org[shemminger]!nakam | bd641cd | 2004-09-28 18:38:35 +0000 | [diff] [blame] | 571 | if(argc > 0) |
| 572 | filter.use = 1; |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 573 | filter.xsinfo.family = preferred_family; |
| 574 | |
| 575 | while (argc > 0) { |
| 576 | if (strcmp(*argv, "mode") == 0) { |
| 577 | NEXT_ARG(); |
| 578 | xfrm_mode_parse(&filter.xsinfo.mode, &argc, &argv); |
| 579 | |
| 580 | filter.mode_mask = XFRM_FILTER_MASK_FULL; |
| 581 | |
| 582 | } else if (strcmp(*argv, "reqid") == 0) { |
| 583 | NEXT_ARG(); |
| 584 | xfrm_reqid_parse(&filter.xsinfo.reqid, &argc, &argv); |
| 585 | |
| 586 | filter.reqid_mask = XFRM_FILTER_MASK_FULL; |
| 587 | |
| 588 | } else if (strcmp(*argv, "flag") == 0) { |
| 589 | NEXT_ARG(); |
| 590 | xfrm_state_flag_parse(&filter.xsinfo.flags, &argc, &argv); |
| 591 | |
| 592 | filter.state_flags_mask = XFRM_FILTER_MASK_FULL; |
| 593 | |
| 594 | } else { |
| 595 | if (idp) |
| 596 | invarg("unknown", *argv); |
| 597 | idp = *argv; |
| 598 | |
| 599 | /* ID */ |
net[shemminger]!shemminger | 7809c61 | 2004-08-11 23:41:38 +0000 | [diff] [blame] | 600 | xfrm_id_parse(&filter.xsinfo.saddr, &filter.xsinfo.id, |
| 601 | &filter.xsinfo.family, 1, &argc, &argv); |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 602 | if (preferred_family == AF_UNSPEC) |
| 603 | preferred_family = filter.xsinfo.family; |
| 604 | } |
| 605 | argc--; argv++; |
| 606 | } |
| 607 | |
| 608 | if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0) |
| 609 | exit(1); |
| 610 | |
| 611 | if (flush) { |
| 612 | struct xfrm_buffer xb; |
| 613 | char buf[NLMSG_FLUSH_BUF_SIZE]; |
| 614 | int i; |
| 615 | |
| 616 | xb.buf = buf; |
| 617 | xb.size = sizeof(buf); |
| 618 | xb.rth = &rth; |
| 619 | |
| 620 | for (i = 0; ; i++) { |
| 621 | xb.offset = 0; |
| 622 | xb.nlmsg_count = 0; |
| 623 | |
| 624 | if (show_stats > 1) |
| 625 | fprintf(stderr, "Flush round = %d\n", i); |
| 626 | |
| 627 | if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) { |
| 628 | perror("Cannot send dump request"); |
| 629 | exit(1); |
| 630 | } |
| 631 | |
| 632 | if (rtnl_dump_filter(&rth, xfrm_state_keep, &xb, NULL, NULL) < 0) { |
| 633 | fprintf(stderr, "Flush terminated\n"); |
| 634 | exit(1); |
| 635 | } |
| 636 | if (xb.nlmsg_count == 0) { |
| 637 | if (show_stats > 1) |
| 638 | fprintf(stderr, "Flush completed\n"); |
| 639 | break; |
| 640 | } |
| 641 | |
| 642 | if (rtnl_send(&rth, xb.buf, xb.offset) < 0) { |
| 643 | perror("Failed to send flush request\n"); |
| 644 | exit(1); |
| 645 | } |
| 646 | if (show_stats > 1) |
| 647 | fprintf(stderr, "Flushed nlmsg count = %d\n", xb.nlmsg_count); |
| 648 | |
| 649 | xb.offset = 0; |
| 650 | xb.nlmsg_count = 0; |
| 651 | } |
| 652 | |
| 653 | } else { |
| 654 | if (rtnl_wilddump_request(&rth, preferred_family, XFRM_MSG_GETSA) < 0) { |
| 655 | perror("Cannot send dump request"); |
| 656 | exit(1); |
| 657 | } |
| 658 | |
| 659 | if (rtnl_dump_filter(&rth, xfrm_state_print, stdout, NULL, NULL) < 0) { |
| 660 | fprintf(stderr, "Dump terminated\n"); |
| 661 | exit(1); |
| 662 | } |
| 663 | } |
| 664 | |
| 665 | rtnl_close(&rth); |
| 666 | |
| 667 | exit(0); |
| 668 | } |
| 669 | |
org[shemminger]!nakam | bd641cd | 2004-09-28 18:38:35 +0000 | [diff] [blame] | 670 | static int xfrm_state_flush_all(void) |
| 671 | { |
| 672 | struct rtnl_handle rth; |
| 673 | struct { |
| 674 | struct nlmsghdr n; |
| 675 | struct xfrm_usersa_flush xsf; |
| 676 | } req; |
| 677 | |
| 678 | memset(&req, 0, sizeof(req)); |
| 679 | |
| 680 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xsf)); |
| 681 | req.n.nlmsg_flags = NLM_F_REQUEST; |
| 682 | req.n.nlmsg_type = XFRM_MSG_FLUSHSA; |
| 683 | req.xsf.proto = IPSEC_PROTO_ANY; |
| 684 | |
| 685 | if (rtnl_open_byproto(&rth, 0, NETLINK_XFRM) < 0) |
| 686 | exit(1); |
| 687 | |
| 688 | if (show_stats > 1) |
| 689 | fprintf(stderr, "Flush all\n"); |
| 690 | |
| 691 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) |
| 692 | exit(2); |
| 693 | |
| 694 | rtnl_close(&rth); |
| 695 | |
| 696 | return 0; |
| 697 | } |
| 698 | |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 699 | int do_xfrm_state(int argc, char **argv) |
| 700 | { |
| 701 | if (argc < 1) |
| 702 | return xfrm_state_list_or_flush(0, NULL, 0); |
| 703 | |
| 704 | if (matches(*argv, "add") == 0) |
| 705 | return xfrm_state_modify(XFRM_MSG_NEWSA, 0, |
| 706 | argc-1, argv+1); |
| 707 | if (matches(*argv, "update") == 0) |
| 708 | return xfrm_state_modify(XFRM_MSG_UPDSA, 0, |
| 709 | argc-1, argv+1); |
| 710 | if (matches(*argv, "delete") == 0 || matches(*argv, "del") == 0) |
| 711 | return xfrm_state_get_or_delete(argc-1, argv+1, 1); |
| 712 | if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0 |
| 713 | || matches(*argv, "lst") == 0) |
| 714 | return xfrm_state_list_or_flush(argc-1, argv+1, 0); |
| 715 | if (matches(*argv, "get") == 0) |
| 716 | return xfrm_state_get_or_delete(argc-1, argv+1, 0); |
org[shemminger]!nakam | bd641cd | 2004-09-28 18:38:35 +0000 | [diff] [blame] | 717 | if (matches(*argv, "flush") == 0) { |
| 718 | if (argc-1 < 1) |
| 719 | return xfrm_state_flush_all(); |
| 720 | else |
| 721 | return xfrm_state_list_or_flush(argc-1, argv+1, 1); |
| 722 | } |
net[shemminger]!shemminger | c769987 | 2004-07-07 17:05:56 +0000 | [diff] [blame] | 723 | if (matches(*argv, "help") == 0) |
| 724 | usage(); |
| 725 | fprintf(stderr, "Command \"%s\" is unknown, try \"ip xfrm state help\".\n", *argv); |
| 726 | exit(-1); |
| 727 | } |