1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _BPF_CGROUP_H 3 #define _BPF_CGROUP_H 4 5 #include <linux/bpf.h> 6 #include <linux/bpf-cgroup-defs.h> 7 #include <linux/errno.h> 8 #include <linux/jump_label.h> 9 #include <linux/percpu.h> 10 #include <linux/rbtree.h> 11 #include <net/sock.h> 12 #include <uapi/linux/bpf.h> 13 14 struct sock; 15 struct sockaddr; 16 struct cgroup; 17 struct sk_buff; 18 struct bpf_map; 19 struct bpf_prog; 20 struct bpf_sock_ops_kern; 21 struct bpf_cgroup_storage; 22 struct ctl_table; 23 struct ctl_table_header; 24 struct task_struct; 25 26 unsigned int __cgroup_bpf_run_lsm_sock(const void *ctx, 27 const struct bpf_insn *insn); 28 unsigned int __cgroup_bpf_run_lsm_socket(const void *ctx, 29 const struct bpf_insn *insn); 30 unsigned int __cgroup_bpf_run_lsm_current(const void *ctx, 31 const struct bpf_insn *insn); 32 33 #ifdef CONFIG_CGROUP_BPF 34 35 #define CGROUP_ATYPE(type) \ 36 case BPF_##type: return type 37 38 static inline enum cgroup_bpf_attach_type 39 to_cgroup_bpf_attach_type(enum bpf_attach_type attach_type) 40 { 41 switch (attach_type) { 42 CGROUP_ATYPE(CGROUP_INET_INGRESS); 43 CGROUP_ATYPE(CGROUP_INET_EGRESS); 44 CGROUP_ATYPE(CGROUP_INET_SOCK_CREATE); 45 CGROUP_ATYPE(CGROUP_SOCK_OPS); 46 CGROUP_ATYPE(CGROUP_DEVICE); 47 CGROUP_ATYPE(CGROUP_INET4_BIND); 48 CGROUP_ATYPE(CGROUP_INET6_BIND); 49 CGROUP_ATYPE(CGROUP_INET4_CONNECT); 50 CGROUP_ATYPE(CGROUP_INET6_CONNECT); 51 CGROUP_ATYPE(CGROUP_UNIX_CONNECT); 52 CGROUP_ATYPE(CGROUP_INET4_POST_BIND); 53 CGROUP_ATYPE(CGROUP_INET6_POST_BIND); 54 CGROUP_ATYPE(CGROUP_UDP4_SENDMSG); 55 CGROUP_ATYPE(CGROUP_UDP6_SENDMSG); 56 CGROUP_ATYPE(CGROUP_UNIX_SENDMSG); 57 CGROUP_ATYPE(CGROUP_SYSCTL); 58 CGROUP_ATYPE(CGROUP_UDP4_RECVMSG); 59 CGROUP_ATYPE(CGROUP_UDP6_RECVMSG); 60 CGROUP_ATYPE(CGROUP_UNIX_RECVMSG); 61 CGROUP_ATYPE(CGROUP_GETSOCKOPT); 62 CGROUP_ATYPE(CGROUP_SETSOCKOPT); 63 CGROUP_ATYPE(CGROUP_INET4_GETPEERNAME); 64 CGROUP_ATYPE(CGROUP_INET6_GETPEERNAME); 65 CGROUP_ATYPE(CGROUP_UNIX_GETPEERNAME); 66 CGROUP_ATYPE(CGROUP_INET4_GETSOCKNAME); 67 CGROUP_ATYPE(CGROUP_INET6_GETSOCKNAME); 68 CGROUP_ATYPE(CGROUP_UNIX_GETSOCKNAME); 69 CGROUP_ATYPE(CGROUP_INET_SOCK_RELEASE); 70 default: 71 return CGROUP_BPF_ATTACH_TYPE_INVALID; 72 } 73 } 74 75 #undef CGROUP_ATYPE 76 77 extern struct static_key_false cgroup_bpf_enabled_key[MAX_CGROUP_BPF_ATTACH_TYPE]; 78 #define cgroup_bpf_enabled(atype) static_branch_unlikely(&cgroup_bpf_enabled_key[atype]) 79 80 #define for_each_cgroup_storage_type(stype) \ 81 for (stype = 0; stype < MAX_BPF_CGROUP_STORAGE_TYPE; stype++) 82 83 struct bpf_cgroup_storage_map; 84 85 struct bpf_storage_buffer { 86 struct rcu_head rcu; 87 char data[]; 88 }; 89 90 struct bpf_cgroup_storage { 91 union { 92 struct bpf_storage_buffer *buf; 93 void __percpu *percpu_buf; 94 }; 95 struct bpf_cgroup_storage_map *map; 96 struct bpf_cgroup_storage_key key; 97 struct list_head list_map; 98 struct list_head list_cg; 99 struct rb_node node; 100 struct rcu_head rcu; 101 }; 102 103 struct bpf_cgroup_link { 104 struct bpf_link link; 105 struct cgroup *cgroup; 106 enum bpf_attach_type type; 107 }; 108 109 struct bpf_prog_list { 110 struct hlist_node node; 111 struct bpf_prog *prog; 112 struct bpf_cgroup_link *link; 113 struct bpf_cgroup_storage *storage[MAX_BPF_CGROUP_STORAGE_TYPE]; 114 u32 flags; 115 }; 116 117 int cgroup_bpf_inherit(struct cgroup *cgrp); 118 void cgroup_bpf_offline(struct cgroup *cgrp); 119 120 int __cgroup_bpf_run_filter_skb(struct sock *sk, 121 struct sk_buff *skb, 122 enum cgroup_bpf_attach_type atype); 123 124 int __cgroup_bpf_run_filter_sk(struct sock *sk, 125 enum cgroup_bpf_attach_type atype); 126 127 int __cgroup_bpf_run_filter_sock_addr(struct sock *sk, 128 struct sockaddr *uaddr, 129 int *uaddrlen, 130 enum cgroup_bpf_attach_type atype, 131 void *t_ctx, 132 u32 *flags); 133 134 int __cgroup_bpf_run_filter_sock_ops(struct sock *sk, 135 struct bpf_sock_ops_kern *sock_ops, 136 enum cgroup_bpf_attach_type atype); 137 138 int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor, 139 short access, enum cgroup_bpf_attach_type atype); 140 141 int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head, 142 const struct ctl_table *table, int write, 143 char **buf, size_t *pcount, loff_t *ppos, 144 enum cgroup_bpf_attach_type atype); 145 146 int __cgroup_bpf_run_filter_setsockopt(struct sock *sock, int *level, 147 int *optname, sockptr_t optval, 148 int *optlen, char **kernel_optval); 149 150 int __cgroup_bpf_run_filter_getsockopt(struct sock *sk, int level, 151 int optname, sockptr_t optval, 152 sockptr_t optlen, int max_optlen, 153 int retval); 154 155 int __cgroup_bpf_run_filter_getsockopt_kern(struct sock *sk, int level, 156 int optname, void *optval, 157 int *optlen, int retval); 158 159 static inline enum bpf_cgroup_storage_type cgroup_storage_type( 160 struct bpf_map *map) 161 { 162 if (map->map_type == BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE) 163 return BPF_CGROUP_STORAGE_PERCPU; 164 165 return BPF_CGROUP_STORAGE_SHARED; 166 } 167 168 struct bpf_cgroup_storage * 169 cgroup_storage_lookup(struct bpf_cgroup_storage_map *map, 170 void *key, bool locked); 171 struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(struct bpf_prog *prog, 172 enum bpf_cgroup_storage_type stype); 173 void bpf_cgroup_storage_free(struct bpf_cgroup_storage *storage); 174 void bpf_cgroup_storage_link(struct bpf_cgroup_storage *storage, 175 struct cgroup *cgroup, 176 enum bpf_attach_type type); 177 void bpf_cgroup_storage_unlink(struct bpf_cgroup_storage *storage); 178 int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux, struct bpf_map *map); 179 180 int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key, void *value); 181 int bpf_percpu_cgroup_storage_update(struct bpf_map *map, void *key, 182 void *value, u64 flags); 183 184 /* Opportunistic check to see whether we have any BPF program attached*/ 185 static inline bool cgroup_bpf_sock_enabled(struct sock *sk, 186 enum cgroup_bpf_attach_type type) 187 { 188 struct cgroup *cgrp = sock_cgroup_ptr(&sk->sk_cgrp_data); 189 struct bpf_prog_array *array; 190 191 array = rcu_access_pointer(cgrp->bpf.effective[type]); 192 return array != &bpf_empty_prog_array.hdr; 193 } 194 195 /* Wrappers for __cgroup_bpf_run_filter_skb() guarded by cgroup_bpf_enabled. */ 196 #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk, skb) \ 197 ({ \ 198 int __ret = 0; \ 199 if (cgroup_bpf_enabled(CGROUP_INET_INGRESS) && \ 200 cgroup_bpf_sock_enabled(sk, CGROUP_INET_INGRESS) && sk && \ 201 sk_fullsock(sk)) \ 202 __ret = __cgroup_bpf_run_filter_skb(sk, skb, \ 203 CGROUP_INET_INGRESS); \ 204 \ 205 __ret; \ 206 }) 207 208 #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk, skb) \ 209 ({ \ 210 int __ret = 0; \ 211 if (cgroup_bpf_enabled(CGROUP_INET_EGRESS) && sk) { \ 212 typeof(sk) __sk = sk_to_full_sk(sk); \ 213 if (__sk && __sk == skb_to_full_sk(skb) && \ 214 cgroup_bpf_sock_enabled(__sk, CGROUP_INET_EGRESS)) \ 215 __ret = __cgroup_bpf_run_filter_skb(__sk, skb, \ 216 CGROUP_INET_EGRESS); \ 217 } \ 218 __ret; \ 219 }) 220 221 #define BPF_CGROUP_RUN_SK_PROG(sk, atype) \ 222 ({ \ 223 int __ret = 0; \ 224 if (cgroup_bpf_enabled(atype)) { \ 225 __ret = __cgroup_bpf_run_filter_sk(sk, atype); \ 226 } \ 227 __ret; \ 228 }) 229 230 #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) \ 231 BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET_SOCK_CREATE) 232 233 #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) \ 234 BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET_SOCK_RELEASE) 235 236 #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) \ 237 BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET4_POST_BIND) 238 239 #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) \ 240 BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET6_POST_BIND) 241 242 #define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, uaddrlen, atype) \ 243 ({ \ 244 int __ret = 0; \ 245 if (cgroup_bpf_enabled(atype)) \ 246 __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, uaddrlen, \ 247 atype, NULL, NULL); \ 248 __ret; \ 249 }) 250 251 #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, atype, t_ctx) \ 252 ({ \ 253 int __ret = 0; \ 254 if (cgroup_bpf_enabled(atype)) { \ 255 lock_sock(sk); \ 256 __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, uaddrlen, \ 257 atype, t_ctx, NULL); \ 258 release_sock(sk); \ 259 } \ 260 __ret; \ 261 }) 262 263 /* BPF_CGROUP_INET4_BIND and BPF_CGROUP_INET6_BIND can return extra flags 264 * via upper bits of return code. The only flag that is supported 265 * (at bit position 0) is to indicate CAP_NET_BIND_SERVICE capability check 266 * should be bypassed (BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE). 267 */ 268 #define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, uaddrlen, atype, bind_flags) \ 269 ({ \ 270 u32 __flags = 0; \ 271 int __ret = 0; \ 272 if (cgroup_bpf_enabled(atype)) { \ 273 lock_sock(sk); \ 274 __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, uaddrlen, \ 275 atype, NULL, &__flags); \ 276 release_sock(sk); \ 277 if (__flags & BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE) \ 278 *bind_flags |= BIND_NO_CAP_NET_BIND_SERVICE; \ 279 } \ 280 __ret; \ 281 }) 282 283 #define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) \ 284 ((cgroup_bpf_enabled(CGROUP_INET4_CONNECT) || \ 285 cgroup_bpf_enabled(CGROUP_INET6_CONNECT)) && \ 286 (sk)->sk_prot->pre_connect) 287 288 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr, uaddrlen) \ 289 BPF_CGROUP_RUN_SA_PROG(sk, uaddr, uaddrlen, CGROUP_INET4_CONNECT) 290 291 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr, uaddrlen) \ 292 BPF_CGROUP_RUN_SA_PROG(sk, uaddr, uaddrlen, CGROUP_INET6_CONNECT) 293 294 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr, uaddrlen) \ 295 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_INET4_CONNECT, NULL) 296 297 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr, uaddrlen) \ 298 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_INET6_CONNECT, NULL) 299 300 #define BPF_CGROUP_RUN_PROG_UNIX_CONNECT_LOCK(sk, uaddr, uaddrlen) \ 301 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UNIX_CONNECT, NULL) 302 303 #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) \ 304 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UDP4_SENDMSG, t_ctx) 305 306 #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) \ 307 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UDP6_SENDMSG, t_ctx) 308 309 #define BPF_CGROUP_RUN_PROG_UNIX_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) \ 310 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UNIX_SENDMSG, t_ctx) 311 312 #define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr, uaddrlen) \ 313 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UDP4_RECVMSG, NULL) 314 315 #define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr, uaddrlen) \ 316 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UDP6_RECVMSG, NULL) 317 318 #define BPF_CGROUP_RUN_PROG_UNIX_RECVMSG_LOCK(sk, uaddr, uaddrlen) \ 319 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UNIX_RECVMSG, NULL) 320 321 /* The SOCK_OPS"_SK" macro should be used when sock_ops->sk is not a 322 * fullsock and its parent fullsock cannot be traced by 323 * sk_to_full_sk(). 324 * 325 * e.g. sock_ops->sk is a request_sock and it is under syncookie mode. 326 * Its listener-sk is not attached to the rsk_listener. 327 * In this case, the caller holds the listener-sk (unlocked), 328 * set its sock_ops->sk to req_sk, and call this SOCK_OPS"_SK" with 329 * the listener-sk such that the cgroup-bpf-progs of the 330 * listener-sk will be run. 331 * 332 * Regardless of syncookie mode or not, 333 * calling bpf_setsockopt on listener-sk will not make sense anyway, 334 * so passing 'sock_ops->sk == req_sk' to the bpf prog is appropriate here. 335 */ 336 #define BPF_CGROUP_RUN_PROG_SOCK_OPS_SK(sock_ops, sk) \ 337 ({ \ 338 int __ret = 0; \ 339 if (cgroup_bpf_enabled(CGROUP_SOCK_OPS)) \ 340 __ret = __cgroup_bpf_run_filter_sock_ops(sk, \ 341 sock_ops, \ 342 CGROUP_SOCK_OPS); \ 343 __ret; \ 344 }) 345 346 #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) \ 347 ({ \ 348 int __ret = 0; \ 349 if (cgroup_bpf_enabled(CGROUP_SOCK_OPS) && (sock_ops)->sk) { \ 350 typeof(sk) __sk = sk_to_full_sk((sock_ops)->sk); \ 351 if (__sk && sk_fullsock(__sk)) \ 352 __ret = __cgroup_bpf_run_filter_sock_ops(__sk, \ 353 sock_ops, \ 354 CGROUP_SOCK_OPS); \ 355 } \ 356 __ret; \ 357 }) 358 359 #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(atype, major, minor, access) \ 360 ({ \ 361 int __ret = 0; \ 362 if (cgroup_bpf_enabled(CGROUP_DEVICE)) \ 363 __ret = __cgroup_bpf_check_dev_permission(atype, major, minor, \ 364 access, \ 365 CGROUP_DEVICE); \ 366 \ 367 __ret; \ 368 }) 369 370 371 #define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write, buf, count, pos) \ 372 ({ \ 373 int __ret = 0; \ 374 if (cgroup_bpf_enabled(CGROUP_SYSCTL)) \ 375 __ret = __cgroup_bpf_run_filter_sysctl(head, table, write, \ 376 buf, count, pos, \ 377 CGROUP_SYSCTL); \ 378 __ret; \ 379 }) 380 381 #define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \ 382 kernel_optval) \ 383 ({ \ 384 int __ret = 0; \ 385 if (cgroup_bpf_enabled(CGROUP_SETSOCKOPT) && \ 386 cgroup_bpf_sock_enabled(sock, CGROUP_SETSOCKOPT)) \ 387 __ret = __cgroup_bpf_run_filter_setsockopt(sock, level, \ 388 optname, optval, \ 389 optlen, \ 390 kernel_optval); \ 391 __ret; \ 392 }) 393 394 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, optlen, \ 395 max_optlen, retval) \ 396 ({ \ 397 int __ret = retval; \ 398 if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT) && \ 399 cgroup_bpf_sock_enabled(sock, CGROUP_GETSOCKOPT)) \ 400 if (!(sock)->sk_prot->bpf_bypass_getsockopt || \ 401 !INDIRECT_CALL_INET_1((sock)->sk_prot->bpf_bypass_getsockopt, \ 402 tcp_bpf_bypass_getsockopt, \ 403 level, optname)) \ 404 __ret = __cgroup_bpf_run_filter_getsockopt( \ 405 sock, level, optname, optval, optlen, \ 406 max_optlen, retval); \ 407 __ret; \ 408 }) 409 410 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \ 411 optlen, retval) \ 412 ({ \ 413 int __ret = retval; \ 414 if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT)) \ 415 __ret = __cgroup_bpf_run_filter_getsockopt_kern( \ 416 sock, level, optname, optval, optlen, retval); \ 417 __ret; \ 418 }) 419 420 int cgroup_bpf_prog_attach(const union bpf_attr *attr, 421 enum bpf_prog_type ptype, struct bpf_prog *prog); 422 int cgroup_bpf_prog_detach(const union bpf_attr *attr, 423 enum bpf_prog_type ptype); 424 int cgroup_bpf_link_attach(const union bpf_attr *attr, struct bpf_prog *prog); 425 int cgroup_bpf_prog_query(const union bpf_attr *attr, 426 union bpf_attr __user *uattr); 427 428 const struct bpf_func_proto * 429 cgroup_common_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog); 430 const struct bpf_func_proto * 431 cgroup_current_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog); 432 #else 433 434 static inline int cgroup_bpf_inherit(struct cgroup *cgrp) { return 0; } 435 static inline void cgroup_bpf_offline(struct cgroup *cgrp) {} 436 437 static inline int cgroup_bpf_prog_attach(const union bpf_attr *attr, 438 enum bpf_prog_type ptype, 439 struct bpf_prog *prog) 440 { 441 return -EINVAL; 442 } 443 444 static inline int cgroup_bpf_prog_detach(const union bpf_attr *attr, 445 enum bpf_prog_type ptype) 446 { 447 return -EINVAL; 448 } 449 450 static inline int cgroup_bpf_link_attach(const union bpf_attr *attr, 451 struct bpf_prog *prog) 452 { 453 return -EINVAL; 454 } 455 456 static inline int cgroup_bpf_prog_query(const union bpf_attr *attr, 457 union bpf_attr __user *uattr) 458 { 459 return -EINVAL; 460 } 461 462 static inline const struct bpf_func_proto * 463 cgroup_common_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) 464 { 465 return NULL; 466 } 467 468 static inline const struct bpf_func_proto * 469 cgroup_current_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) 470 { 471 return NULL; 472 } 473 474 static inline int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux, 475 struct bpf_map *map) { return 0; } 476 static inline struct bpf_cgroup_storage *bpf_cgroup_storage_alloc( 477 struct bpf_prog *prog, enum bpf_cgroup_storage_type stype) { return NULL; } 478 static inline void bpf_cgroup_storage_free( 479 struct bpf_cgroup_storage *storage) {} 480 static inline int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key, 481 void *value) { 482 return 0; 483 } 484 static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map, 485 void *key, void *value, u64 flags) { 486 return 0; 487 } 488 489 #define cgroup_bpf_enabled(atype) (0) 490 #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, atype, t_ctx) ({ 0; }) 491 #define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, uaddrlen, atype) ({ 0; }) 492 #define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) (0) 493 #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; }) 494 #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; }) 495 #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; }) 496 #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; }) 497 #define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, uaddrlen, atype, flags) ({ 0; }) 498 #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; }) 499 #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) ({ 0; }) 500 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr, uaddrlen) ({ 0; }) 501 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 502 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr, uaddrlen) ({ 0; }) 503 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 504 #define BPF_CGROUP_RUN_PROG_UNIX_CONNECT_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 505 #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) ({ 0; }) 506 #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) ({ 0; }) 507 #define BPF_CGROUP_RUN_PROG_UNIX_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) ({ 0; }) 508 #define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 509 #define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 510 #define BPF_CGROUP_RUN_PROG_UNIX_RECVMSG_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 511 #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; }) 512 #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(atype, major, minor, access) ({ 0; }) 513 #define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,pos) ({ 0; }) 514 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, \ 515 optlen, max_optlen, retval) ({ retval; }) 516 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \ 517 optlen, retval) ({ retval; }) 518 #define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \ 519 kernel_optval) ({ 0; }) 520 521 #define for_each_cgroup_storage_type(stype) for (; false; ) 522 523 #endif /* CONFIG_CGROUP_BPF */ 524 525 #endif /* _BPF_CGROUP_H */ 526