include/linux/bpf-cgroup.h

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