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 }; 115 116 int cgroup_bpf_inherit(struct cgroup *cgrp); 117 void cgroup_bpf_offline(struct cgroup *cgrp); 118 119 int __cgroup_bpf_run_filter_skb(struct sock *sk, 120 struct sk_buff *skb, 121 enum cgroup_bpf_attach_type atype); 122 123 int __cgroup_bpf_run_filter_sk(struct sock *sk, 124 enum cgroup_bpf_attach_type atype); 125 126 int __cgroup_bpf_run_filter_sock_addr(struct sock *sk, 127 struct sockaddr *uaddr, 128 int *uaddrlen, 129 enum cgroup_bpf_attach_type atype, 130 void *t_ctx, 131 u32 *flags); 132 133 int __cgroup_bpf_run_filter_sock_ops(struct sock *sk, 134 struct bpf_sock_ops_kern *sock_ops, 135 enum cgroup_bpf_attach_type atype); 136 137 int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor, 138 short access, enum cgroup_bpf_attach_type atype); 139 140 int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head, 141 const struct ctl_table *table, int write, 142 char **buf, size_t *pcount, loff_t *ppos, 143 enum cgroup_bpf_attach_type atype); 144 145 int __cgroup_bpf_run_filter_setsockopt(struct sock *sock, int *level, 146 int *optname, sockptr_t optval, 147 int *optlen, char **kernel_optval); 148 149 int __cgroup_bpf_run_filter_getsockopt(struct sock *sk, int level, 150 int optname, sockptr_t optval, 151 sockptr_t optlen, int max_optlen, 152 int retval); 153 154 int __cgroup_bpf_run_filter_getsockopt_kern(struct sock *sk, int level, 155 int optname, void *optval, 156 int *optlen, int retval); 157 158 static inline enum bpf_cgroup_storage_type cgroup_storage_type( 159 struct bpf_map *map) 160 { 161 if (map->map_type == BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE) 162 return BPF_CGROUP_STORAGE_PERCPU; 163 164 return BPF_CGROUP_STORAGE_SHARED; 165 } 166 167 struct bpf_cgroup_storage * 168 cgroup_storage_lookup(struct bpf_cgroup_storage_map *map, 169 void *key, bool locked); 170 struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(struct bpf_prog *prog, 171 enum bpf_cgroup_storage_type stype); 172 void bpf_cgroup_storage_free(struct bpf_cgroup_storage *storage); 173 void bpf_cgroup_storage_link(struct bpf_cgroup_storage *storage, 174 struct cgroup *cgroup, 175 enum bpf_attach_type type); 176 void bpf_cgroup_storage_unlink(struct bpf_cgroup_storage *storage); 177 int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux, struct bpf_map *map); 178 179 int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key, void *value); 180 int bpf_percpu_cgroup_storage_update(struct bpf_map *map, void *key, 181 void *value, u64 flags); 182 183 /* Opportunistic check to see whether we have any BPF program attached*/ 184 static inline bool cgroup_bpf_sock_enabled(struct sock *sk, 185 enum cgroup_bpf_attach_type type) 186 { 187 struct cgroup *cgrp = sock_cgroup_ptr(&sk->sk_cgrp_data); 188 struct bpf_prog_array *array; 189 190 array = rcu_access_pointer(cgrp->bpf.effective[type]); 191 return array != &bpf_empty_prog_array.hdr; 192 } 193 194 /* Wrappers for __cgroup_bpf_run_filter_skb() guarded by cgroup_bpf_enabled. */ 195 #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk, skb) \ 196 ({ \ 197 int __ret = 0; \ 198 if (cgroup_bpf_enabled(CGROUP_INET_INGRESS) && \ 199 cgroup_bpf_sock_enabled(sk, CGROUP_INET_INGRESS) && sk && \ 200 sk_fullsock(sk)) \ 201 __ret = __cgroup_bpf_run_filter_skb(sk, skb, \ 202 CGROUP_INET_INGRESS); \ 203 \ 204 __ret; \ 205 }) 206 207 #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk, skb) \ 208 ({ \ 209 int __ret = 0; \ 210 if (cgroup_bpf_enabled(CGROUP_INET_EGRESS) && sk) { \ 211 typeof(sk) __sk = sk_to_full_sk(sk); \ 212 if (__sk && __sk == skb_to_full_sk(skb) && \ 213 cgroup_bpf_sock_enabled(__sk, CGROUP_INET_EGRESS)) \ 214 __ret = __cgroup_bpf_run_filter_skb(__sk, skb, \ 215 CGROUP_INET_EGRESS); \ 216 } \ 217 __ret; \ 218 }) 219 220 #define BPF_CGROUP_RUN_SK_PROG(sk, atype) \ 221 ({ \ 222 int __ret = 0; \ 223 if (cgroup_bpf_enabled(atype)) { \ 224 __ret = __cgroup_bpf_run_filter_sk(sk, atype); \ 225 } \ 226 __ret; \ 227 }) 228 229 #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) \ 230 BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET_SOCK_CREATE) 231 232 #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) \ 233 BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET_SOCK_RELEASE) 234 235 #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) \ 236 BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET4_POST_BIND) 237 238 #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) \ 239 BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET6_POST_BIND) 240 241 #define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, uaddrlen, atype) \ 242 ({ \ 243 int __ret = 0; \ 244 if (cgroup_bpf_enabled(atype)) \ 245 __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, uaddrlen, \ 246 atype, NULL, NULL); \ 247 __ret; \ 248 }) 249 250 #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, atype, t_ctx) \ 251 ({ \ 252 int __ret = 0; \ 253 if (cgroup_bpf_enabled(atype)) { \ 254 lock_sock(sk); \ 255 __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, uaddrlen, \ 256 atype, t_ctx, NULL); \ 257 release_sock(sk); \ 258 } \ 259 __ret; \ 260 }) 261 262 /* BPF_CGROUP_INET4_BIND and BPF_CGROUP_INET6_BIND can return extra flags 263 * via upper bits of return code. The only flag that is supported 264 * (at bit position 0) is to indicate CAP_NET_BIND_SERVICE capability check 265 * should be bypassed (BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE). 266 */ 267 #define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, uaddrlen, atype, bind_flags) \ 268 ({ \ 269 u32 __flags = 0; \ 270 int __ret = 0; \ 271 if (cgroup_bpf_enabled(atype)) { \ 272 lock_sock(sk); \ 273 __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, uaddrlen, \ 274 atype, NULL, &__flags); \ 275 release_sock(sk); \ 276 if (__flags & BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE) \ 277 *bind_flags |= BIND_NO_CAP_NET_BIND_SERVICE; \ 278 } \ 279 __ret; \ 280 }) 281 282 #define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) \ 283 ((cgroup_bpf_enabled(CGROUP_INET4_CONNECT) || \ 284 cgroup_bpf_enabled(CGROUP_INET6_CONNECT)) && \ 285 (sk)->sk_prot->pre_connect) 286 287 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr, uaddrlen) \ 288 BPF_CGROUP_RUN_SA_PROG(sk, uaddr, uaddrlen, CGROUP_INET4_CONNECT) 289 290 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr, uaddrlen) \ 291 BPF_CGROUP_RUN_SA_PROG(sk, uaddr, uaddrlen, CGROUP_INET6_CONNECT) 292 293 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr, uaddrlen) \ 294 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_INET4_CONNECT, NULL) 295 296 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr, uaddrlen) \ 297 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_INET6_CONNECT, NULL) 298 299 #define BPF_CGROUP_RUN_PROG_UNIX_CONNECT_LOCK(sk, uaddr, uaddrlen) \ 300 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UNIX_CONNECT, NULL) 301 302 #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) \ 303 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UDP4_SENDMSG, t_ctx) 304 305 #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) \ 306 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UDP6_SENDMSG, t_ctx) 307 308 #define BPF_CGROUP_RUN_PROG_UNIX_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) \ 309 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UNIX_SENDMSG, t_ctx) 310 311 #define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr, uaddrlen) \ 312 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UDP4_RECVMSG, NULL) 313 314 #define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr, uaddrlen) \ 315 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UDP6_RECVMSG, NULL) 316 317 #define BPF_CGROUP_RUN_PROG_UNIX_RECVMSG_LOCK(sk, uaddr, uaddrlen) \ 318 BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, CGROUP_UNIX_RECVMSG, NULL) 319 320 /* The SOCK_OPS"_SK" macro should be used when sock_ops->sk is not a 321 * fullsock and its parent fullsock cannot be traced by 322 * sk_to_full_sk(). 323 * 324 * e.g. sock_ops->sk is a request_sock and it is under syncookie mode. 325 * Its listener-sk is not attached to the rsk_listener. 326 * In this case, the caller holds the listener-sk (unlocked), 327 * set its sock_ops->sk to req_sk, and call this SOCK_OPS"_SK" with 328 * the listener-sk such that the cgroup-bpf-progs of the 329 * listener-sk will be run. 330 * 331 * Regardless of syncookie mode or not, 332 * calling bpf_setsockopt on listener-sk will not make sense anyway, 333 * so passing 'sock_ops->sk == req_sk' to the bpf prog is appropriate here. 334 */ 335 #define BPF_CGROUP_RUN_PROG_SOCK_OPS_SK(sock_ops, sk) \ 336 ({ \ 337 int __ret = 0; \ 338 if (cgroup_bpf_enabled(CGROUP_SOCK_OPS)) \ 339 __ret = __cgroup_bpf_run_filter_sock_ops(sk, \ 340 sock_ops, \ 341 CGROUP_SOCK_OPS); \ 342 __ret; \ 343 }) 344 345 #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) \ 346 ({ \ 347 int __ret = 0; \ 348 if (cgroup_bpf_enabled(CGROUP_SOCK_OPS) && (sock_ops)->sk) { \ 349 typeof(sk) __sk = sk_to_full_sk((sock_ops)->sk); \ 350 if (__sk && sk_fullsock(__sk)) \ 351 __ret = __cgroup_bpf_run_filter_sock_ops(__sk, \ 352 sock_ops, \ 353 CGROUP_SOCK_OPS); \ 354 } \ 355 __ret; \ 356 }) 357 358 #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(atype, major, minor, access) \ 359 ({ \ 360 int __ret = 0; \ 361 if (cgroup_bpf_enabled(CGROUP_DEVICE)) \ 362 __ret = __cgroup_bpf_check_dev_permission(atype, major, minor, \ 363 access, \ 364 CGROUP_DEVICE); \ 365 \ 366 __ret; \ 367 }) 368 369 370 #define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write, buf, count, pos) \ 371 ({ \ 372 int __ret = 0; \ 373 if (cgroup_bpf_enabled(CGROUP_SYSCTL)) \ 374 __ret = __cgroup_bpf_run_filter_sysctl(head, table, write, \ 375 buf, count, pos, \ 376 CGROUP_SYSCTL); \ 377 __ret; \ 378 }) 379 380 #define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \ 381 kernel_optval) \ 382 ({ \ 383 int __ret = 0; \ 384 if (cgroup_bpf_enabled(CGROUP_SETSOCKOPT) && \ 385 cgroup_bpf_sock_enabled(sock, CGROUP_SETSOCKOPT)) \ 386 __ret = __cgroup_bpf_run_filter_setsockopt(sock, level, \ 387 optname, optval, \ 388 optlen, \ 389 kernel_optval); \ 390 __ret; \ 391 }) 392 393 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, optlen, \ 394 max_optlen, retval) \ 395 ({ \ 396 int __ret = retval; \ 397 if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT) && \ 398 cgroup_bpf_sock_enabled(sock, CGROUP_GETSOCKOPT)) \ 399 if (!(sock)->sk_prot->bpf_bypass_getsockopt || \ 400 !INDIRECT_CALL_INET_1((sock)->sk_prot->bpf_bypass_getsockopt, \ 401 tcp_bpf_bypass_getsockopt, \ 402 level, optname)) \ 403 __ret = __cgroup_bpf_run_filter_getsockopt( \ 404 sock, level, optname, optval, optlen, \ 405 max_optlen, retval); \ 406 __ret; \ 407 }) 408 409 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \ 410 optlen, retval) \ 411 ({ \ 412 int __ret = retval; \ 413 if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT)) \ 414 __ret = __cgroup_bpf_run_filter_getsockopt_kern( \ 415 sock, level, optname, optval, optlen, retval); \ 416 __ret; \ 417 }) 418 419 int cgroup_bpf_prog_attach(const union bpf_attr *attr, 420 enum bpf_prog_type ptype, struct bpf_prog *prog); 421 int cgroup_bpf_prog_detach(const union bpf_attr *attr, 422 enum bpf_prog_type ptype); 423 int cgroup_bpf_link_attach(const union bpf_attr *attr, struct bpf_prog *prog); 424 int cgroup_bpf_prog_query(const union bpf_attr *attr, 425 union bpf_attr __user *uattr); 426 427 const struct bpf_func_proto * 428 cgroup_common_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog); 429 const struct bpf_func_proto * 430 cgroup_current_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog); 431 #else 432 433 static inline int cgroup_bpf_inherit(struct cgroup *cgrp) { return 0; } 434 static inline void cgroup_bpf_offline(struct cgroup *cgrp) {} 435 436 static inline int cgroup_bpf_prog_attach(const union bpf_attr *attr, 437 enum bpf_prog_type ptype, 438 struct bpf_prog *prog) 439 { 440 return -EINVAL; 441 } 442 443 static inline int cgroup_bpf_prog_detach(const union bpf_attr *attr, 444 enum bpf_prog_type ptype) 445 { 446 return -EINVAL; 447 } 448 449 static inline int cgroup_bpf_link_attach(const union bpf_attr *attr, 450 struct bpf_prog *prog) 451 { 452 return -EINVAL; 453 } 454 455 static inline int cgroup_bpf_prog_query(const union bpf_attr *attr, 456 union bpf_attr __user *uattr) 457 { 458 return -EINVAL; 459 } 460 461 static inline const struct bpf_func_proto * 462 cgroup_common_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) 463 { 464 return NULL; 465 } 466 467 static inline const struct bpf_func_proto * 468 cgroup_current_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) 469 { 470 return NULL; 471 } 472 473 static inline int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux, 474 struct bpf_map *map) { return 0; } 475 static inline struct bpf_cgroup_storage *bpf_cgroup_storage_alloc( 476 struct bpf_prog *prog, enum bpf_cgroup_storage_type stype) { return NULL; } 477 static inline void bpf_cgroup_storage_free( 478 struct bpf_cgroup_storage *storage) {} 479 static inline int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key, 480 void *value) { 481 return 0; 482 } 483 static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map, 484 void *key, void *value, u64 flags) { 485 return 0; 486 } 487 488 #define cgroup_bpf_enabled(atype) (0) 489 #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, uaddrlen, atype, t_ctx) ({ 0; }) 490 #define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, uaddrlen, atype) ({ 0; }) 491 #define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) (0) 492 #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; }) 493 #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; }) 494 #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; }) 495 #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; }) 496 #define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, uaddrlen, atype, flags) ({ 0; }) 497 #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; }) 498 #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) ({ 0; }) 499 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr, uaddrlen) ({ 0; }) 500 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 501 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr, uaddrlen) ({ 0; }) 502 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 503 #define BPF_CGROUP_RUN_PROG_UNIX_CONNECT_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 504 #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) ({ 0; }) 505 #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) ({ 0; }) 506 #define BPF_CGROUP_RUN_PROG_UNIX_SENDMSG_LOCK(sk, uaddr, uaddrlen, t_ctx) ({ 0; }) 507 #define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 508 #define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 509 #define BPF_CGROUP_RUN_PROG_UNIX_RECVMSG_LOCK(sk, uaddr, uaddrlen) ({ 0; }) 510 #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; }) 511 #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(atype, major, minor, access) ({ 0; }) 512 #define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,pos) ({ 0; }) 513 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, \ 514 optlen, max_optlen, retval) ({ retval; }) 515 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \ 516 optlen, retval) ({ retval; }) 517 #define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \ 518 kernel_optval) ({ 0; }) 519 520 #define for_each_cgroup_storage_type(stype) for (; false; ) 521 522 #endif /* CONFIG_CGROUP_BPF */ 523 524 #endif /* _BPF_CGROUP_H */ 525