1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2016 Intel Corporation. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Security Policies 36 */ 37 #include <sys/types.h> 38 #include <netinet/in.h> 39 #include <netinet/ip6.h> 40 41 #include <rte_acl.h> 42 #include <rte_ip.h> 43 44 #include "ipsec.h" 45 46 #define MAX_ACL_RULE_NUM 1000 47 48 enum { 49 IP6_PROTO, 50 IP6_SRC0, 51 IP6_SRC1, 52 IP6_SRC2, 53 IP6_SRC3, 54 IP6_DST0, 55 IP6_DST1, 56 IP6_DST2, 57 IP6_DST3, 58 IP6_SRCP, 59 IP6_DSTP, 60 IP6_NUM 61 }; 62 63 #define IP6_ADDR_SIZE 16 64 65 struct rte_acl_field_def ip6_defs[IP6_NUM] = { 66 { 67 .type = RTE_ACL_FIELD_TYPE_BITMASK, 68 .size = sizeof(uint8_t), 69 .field_index = IP6_PROTO, 70 .input_index = IP6_PROTO, 71 .offset = 0, 72 }, 73 { 74 .type = RTE_ACL_FIELD_TYPE_MASK, 75 .size = 4, 76 .field_index = IP6_SRC0, 77 .input_index = IP6_SRC0, 78 .offset = 2 79 }, 80 { 81 .type = RTE_ACL_FIELD_TYPE_MASK, 82 .size = 4, 83 .field_index = IP6_SRC1, 84 .input_index = IP6_SRC1, 85 .offset = 6 86 }, 87 { 88 .type = RTE_ACL_FIELD_TYPE_MASK, 89 .size = 4, 90 .field_index = IP6_SRC2, 91 .input_index = IP6_SRC2, 92 .offset = 10 93 }, 94 { 95 .type = RTE_ACL_FIELD_TYPE_MASK, 96 .size = 4, 97 .field_index = IP6_SRC3, 98 .input_index = IP6_SRC3, 99 .offset = 14 100 }, 101 { 102 .type = RTE_ACL_FIELD_TYPE_MASK, 103 .size = 4, 104 .field_index = IP6_DST0, 105 .input_index = IP6_DST0, 106 .offset = 18 107 }, 108 { 109 .type = RTE_ACL_FIELD_TYPE_MASK, 110 .size = 4, 111 .field_index = IP6_DST1, 112 .input_index = IP6_DST1, 113 .offset = 22 114 }, 115 { 116 .type = RTE_ACL_FIELD_TYPE_MASK, 117 .size = 4, 118 .field_index = IP6_DST2, 119 .input_index = IP6_DST2, 120 .offset = 26 121 }, 122 { 123 .type = RTE_ACL_FIELD_TYPE_MASK, 124 .size = 4, 125 .field_index = IP6_DST3, 126 .input_index = IP6_DST3, 127 .offset = 30 128 }, 129 { 130 .type = RTE_ACL_FIELD_TYPE_RANGE, 131 .size = sizeof(uint16_t), 132 .field_index = IP6_SRCP, 133 .input_index = IP6_SRCP, 134 .offset = 34 135 }, 136 { 137 .type = RTE_ACL_FIELD_TYPE_RANGE, 138 .size = sizeof(uint16_t), 139 .field_index = IP6_DSTP, 140 .input_index = IP6_SRCP, 141 .offset = 36 142 } 143 }; 144 145 RTE_ACL_RULE_DEF(acl6_rules, RTE_DIM(ip6_defs)); 146 147 const struct acl6_rules acl6_rules_out[] = { 148 { 149 .data = {.userdata = PROTECT(5), .category_mask = 1, .priority = 1}, 150 /* destination IPv6 */ 151 .field[5] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 152 .field[6] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 153 .field[7] = {.value.u32 = 0x55555555, .mask_range.u32 = 32,}, 154 .field[8] = {.value.u32 = 0x0, .mask_range.u32 = 0,}, 155 /* source port */ 156 .field[9] = {.value.u16 = 0, .mask_range.u16 = 0xffff,}, 157 /* destination port */ 158 .field[10] = {.value.u16 = 0, .mask_range.u16 = 0xffff,} 159 }, 160 { 161 .data = {.userdata = PROTECT(6), .category_mask = 1, .priority = 1}, 162 /* destination IPv6 */ 163 .field[5] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 164 .field[6] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 165 .field[7] = {.value.u32 = 0x66666666, .mask_range.u32 = 32,}, 166 .field[8] = {.value.u32 = 0x0, .mask_range.u32 = 0,}, 167 /* source port */ 168 .field[9] = {.value.u16 = 0, .mask_range.u16 = 0xffff,}, 169 /* destination port */ 170 .field[10] = {.value.u16 = 0, .mask_range.u16 = 0xffff,} 171 }, 172 { 173 .data = {.userdata = PROTECT(25), .category_mask = 1, .priority = 1}, 174 /* destination IPv6 */ 175 .field[5] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 176 .field[6] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 177 .field[7] = {.value.u32 = 0xaaaaaaaa, .mask_range.u32 = 32,}, 178 .field[8] = {.value.u32 = 0x0, .mask_range.u32 = 0,}, 179 /* source port */ 180 .field[9] = {.value.u16 = 0, .mask_range.u16 = 0xffff,}, 181 /* destination port */ 182 .field[10] = {.value.u16 = 0, .mask_range.u16 = 0xffff,} 183 }, 184 { 185 .data = {.userdata = PROTECT(26), .category_mask = 1, .priority = 1}, 186 /* destination IPv6 */ 187 .field[5] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 188 .field[6] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 189 .field[7] = {.value.u32 = 0xbbbbbbbb, .mask_range.u32 = 32,}, 190 .field[8] = {.value.u32 = 0x0, .mask_range.u32 = 0,}, 191 /* source port */ 192 .field[9] = {.value.u16 = 0, .mask_range.u16 = 0xffff,}, 193 /* destination port */ 194 .field[10] = {.value.u16 = 0, .mask_range.u16 = 0xffff,} 195 } 196 }; 197 198 const struct acl6_rules acl6_rules_in[] = { 199 { 200 .data = {.userdata = PROTECT(15), .category_mask = 1, .priority = 1}, 201 /* destination IPv6 */ 202 .field[5] = {.value.u32 = 0xffff0000, .mask_range.u32 = 32,}, 203 .field[6] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 204 .field[7] = {.value.u32 = 0x55555555, .mask_range.u32 = 32,}, 205 .field[8] = {.value.u32 = 0x0, .mask_range.u32 = 0,}, 206 /* source port */ 207 .field[9] = {.value.u16 = 0, .mask_range.u16 = 0xffff,}, 208 /* destination port */ 209 .field[10] = {.value.u16 = 0, .mask_range.u16 = 0xffff,} 210 }, 211 { 212 .data = {.userdata = PROTECT(16), .category_mask = 1, .priority = 1}, 213 /* destination IPv6 */ 214 .field[5] = {.value.u32 = 0xffff0000, .mask_range.u32 = 32,}, 215 .field[6] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 216 .field[7] = {.value.u32 = 0x66666666, .mask_range.u32 = 32,}, 217 .field[8] = {.value.u32 = 0x0, .mask_range.u32 = 0,}, 218 /* source port */ 219 .field[9] = {.value.u16 = 0, .mask_range.u16 = 0xffff,}, 220 /* destination port */ 221 .field[10] = {.value.u16 = 0, .mask_range.u16 = 0xffff,} 222 }, 223 { 224 .data = {.userdata = PROTECT(125), .category_mask = 1, .priority = 1}, 225 /* destination IPv6 */ 226 .field[5] = {.value.u32 = 0xffff0000, .mask_range.u32 = 32,}, 227 .field[6] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 228 .field[7] = {.value.u32 = 0xaaaaaaaa, .mask_range.u32 = 32,}, 229 .field[8] = {.value.u32 = 0x0, .mask_range.u32 = 0,}, 230 /* source port */ 231 .field[9] = {.value.u16 = 0, .mask_range.u16 = 0xffff,}, 232 /* destination port */ 233 .field[10] = {.value.u16 = 0, .mask_range.u16 = 0xffff,} 234 }, 235 { 236 .data = {.userdata = PROTECT(126), .category_mask = 1, .priority = 1}, 237 /* destination IPv6 */ 238 .field[5] = {.value.u32 = 0xffff0000, .mask_range.u32 = 32,}, 239 .field[6] = {.value.u32 = 0x0, .mask_range.u32 = 32,}, 240 .field[7] = {.value.u32 = 0xbbbbbbbb, .mask_range.u32 = 32,}, 241 .field[8] = {.value.u32 = 0x0, .mask_range.u32 = 0,}, 242 /* source port */ 243 .field[9] = {.value.u16 = 0, .mask_range.u16 = 0xffff,}, 244 /* destination port */ 245 .field[10] = {.value.u16 = 0, .mask_range.u16 = 0xffff,} 246 } 247 }; 248 249 static inline void 250 print_one_ip6_rule(const struct acl6_rules *rule, int32_t extra) 251 { 252 uint8_t a, b, c, d; 253 254 uint32_t_to_char(rule->field[IP6_SRC0].value.u32, 255 &a, &b, &c, &d); 256 printf("%.2x%.2x:%.2x%.2x", a, b, c, d); 257 uint32_t_to_char(rule->field[IP6_SRC1].value.u32, 258 &a, &b, &c, &d); 259 printf(":%.2x%.2x:%.2x%.2x", a, b, c, d); 260 uint32_t_to_char(rule->field[IP6_SRC2].value.u32, 261 &a, &b, &c, &d); 262 printf(":%.2x%.2x:%.2x%.2x", a, b, c, d); 263 uint32_t_to_char(rule->field[IP6_SRC3].value.u32, 264 &a, &b, &c, &d); 265 printf(":%.2x%.2x:%.2x%.2x/%u ", a, b, c, d, 266 rule->field[IP6_SRC0].mask_range.u32 267 + rule->field[IP6_SRC1].mask_range.u32 268 + rule->field[IP6_SRC2].mask_range.u32 269 + rule->field[IP6_SRC3].mask_range.u32); 270 271 uint32_t_to_char(rule->field[IP6_DST0].value.u32, 272 &a, &b, &c, &d); 273 printf("%.2x%.2x:%.2x%.2x", a, b, c, d); 274 uint32_t_to_char(rule->field[IP6_DST1].value.u32, 275 &a, &b, &c, &d); 276 printf(":%.2x%.2x:%.2x%.2x", a, b, c, d); 277 uint32_t_to_char(rule->field[IP6_DST2].value.u32, 278 &a, &b, &c, &d); 279 printf(":%.2x%.2x:%.2x%.2x", a, b, c, d); 280 uint32_t_to_char(rule->field[IP6_DST3].value.u32, 281 &a, &b, &c, &d); 282 printf(":%.2x%.2x:%.2x%.2x/%u ", a, b, c, d, 283 rule->field[IP6_DST0].mask_range.u32 284 + rule->field[IP6_DST1].mask_range.u32 285 + rule->field[IP6_DST2].mask_range.u32 286 + rule->field[IP6_DST3].mask_range.u32); 287 288 printf("%hu : %hu %hu : %hu 0x%hhx/0x%hhx ", 289 rule->field[IP6_SRCP].value.u16, 290 rule->field[IP6_SRCP].mask_range.u16, 291 rule->field[IP6_DSTP].value.u16, 292 rule->field[IP6_DSTP].mask_range.u16, 293 rule->field[IP6_PROTO].value.u8, 294 rule->field[IP6_PROTO].mask_range.u8); 295 if (extra) 296 printf("0x%x-0x%x-0x%x ", 297 rule->data.category_mask, 298 rule->data.priority, 299 rule->data.userdata); 300 } 301 302 static inline void 303 dump_ip6_rules(const struct acl6_rules *rule, int32_t num, int32_t extra) 304 { 305 int32_t i; 306 307 for (i = 0; i < num; i++, rule++) { 308 printf("\t%d:", i + 1); 309 print_one_ip6_rule(rule, extra); 310 printf("\n"); 311 } 312 } 313 314 static struct rte_acl_ctx * 315 acl6_init(const char *name, int32_t socketid, const struct acl6_rules *rules, 316 uint32_t rules_nb) 317 { 318 char s[PATH_MAX]; 319 struct rte_acl_param acl_param; 320 struct rte_acl_config acl_build_param; 321 struct rte_acl_ctx *ctx; 322 323 printf("Creating SP context with %u max rules\n", MAX_ACL_RULE_NUM); 324 325 memset(&acl_param, 0, sizeof(acl_param)); 326 327 /* Create ACL contexts */ 328 snprintf(s, sizeof(s), "%s_%d", name, socketid); 329 330 printf("IPv4 %s entries [%u]:\n", s, rules_nb); 331 dump_ip6_rules(rules, rules_nb, 1); 332 333 acl_param.name = s; 334 acl_param.socket_id = socketid; 335 acl_param.rule_size = RTE_ACL_RULE_SZ(RTE_DIM(ip6_defs)); 336 acl_param.max_rule_num = MAX_ACL_RULE_NUM; 337 338 ctx = rte_acl_create(&acl_param); 339 if (ctx == NULL) 340 rte_exit(EXIT_FAILURE, "Failed to create ACL context\n"); 341 342 if (rte_acl_add_rules(ctx, (const struct rte_acl_rule *)rules, 343 rules_nb) < 0) 344 rte_exit(EXIT_FAILURE, "add rules failed\n"); 345 346 /* Perform builds */ 347 memset(&acl_build_param, 0, sizeof(acl_build_param)); 348 349 acl_build_param.num_categories = DEFAULT_MAX_CATEGORIES; 350 acl_build_param.num_fields = RTE_DIM(ip6_defs); 351 memcpy(&acl_build_param.defs, ip6_defs, sizeof(ip6_defs)); 352 353 if (rte_acl_build(ctx, &acl_build_param) != 0) 354 rte_exit(EXIT_FAILURE, "Failed to build ACL trie\n"); 355 356 rte_acl_dump(ctx); 357 358 return ctx; 359 } 360 361 void 362 sp6_init(struct socket_ctx *ctx, int32_t socket_id, uint32_t ep) 363 { 364 const char *name; 365 const struct acl6_rules *rules_out, *rules_in; 366 uint32_t nb_out_rules, nb_in_rules; 367 368 if (ctx == NULL) 369 rte_exit(EXIT_FAILURE, "NULL context.\n"); 370 371 if (ctx->sp_ip6_in != NULL) 372 rte_exit(EXIT_FAILURE, "Inbound IPv6 SP DB for socket %u " 373 "already initialized\n", socket_id); 374 375 if (ctx->sp_ip6_out != NULL) 376 rte_exit(EXIT_FAILURE, "Outbound IPv6 SP DB for socket %u " 377 "already initialized\n", socket_id); 378 379 if (ep == 0) { 380 rules_out = acl6_rules_out; 381 nb_out_rules = RTE_DIM(acl6_rules_out); 382 rules_in = acl6_rules_in; 383 nb_in_rules = RTE_DIM(acl6_rules_in); 384 } else if (ep == 1) { 385 rules_out = acl6_rules_in; 386 nb_out_rules = RTE_DIM(acl6_rules_in); 387 rules_in = acl6_rules_out; 388 nb_in_rules = RTE_DIM(acl6_rules_out); 389 } else 390 rte_exit(EXIT_FAILURE, "Invalid EP value %u. " 391 "Only 0 or 1 supported.\n", ep); 392 393 name = "sp_ip6_in"; 394 ctx->sp_ip6_in = (struct sp_ctx *)acl6_init(name, socket_id, 395 rules_in, nb_in_rules); 396 397 name = "sp_ip6_out"; 398 ctx->sp_ip6_out = (struct sp_ctx *)acl6_init(name, socket_id, 399 rules_out, nb_out_rules); 400 } 401