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/errno.h>
   7 #include <linux/jump_label.h>
   8 #include <linux/percpu.h>
   9 #include <linux/percpu-refcount.h>
  10 #include <linux/rbtree.h>
  11 #include <uapi/linux/bpf.h>
  12
  13 struct sock;
  14 struct sockaddr;
  15 struct cgroup;
  16 struct sk_buff;
  17 struct bpf_map;
  18 struct bpf_prog;
  19 struct bpf_sock_ops_kern;
  20 struct bpf_cgroup_storage;
  21 struct ctl_table;
  22 struct ctl_table_header;
  23 struct task_struct;
  24
  25 #ifdef CONFIG_CGROUP_BPF
  26
  27 extern struct static_key_false cgroup_bpf_enabled_key[MAX_BPF_ATTACH_TYPE];
  28 #define cgroup_bpf_enabled(type) static_branch_unlikely(&cgroup_bpf_enabled_key[type])
  29
  30 #define for_each_cgroup_storage_type(stype) \
  31         for (stype = 0; stype < MAX_BPF_CGROUP_STORAGE_TYPE; stype++)
  32
  33 struct bpf_cgroup_storage_map;
  34
  35 struct bpf_storage_buffer {
  36         struct rcu_head rcu;
  37         char data[];
  38 };
  39
  40 struct bpf_cgroup_storage {
  41         union {
  42                 struct bpf_storage_buffer *buf;
  43                 void __percpu *percpu_buf;
  44         };
  45         struct bpf_cgroup_storage_map *map;
  46         struct bpf_cgroup_storage_key key;
  47         struct list_head list_map;
  48         struct list_head list_cg;
  49         struct rb_node node;
  50         struct rcu_head rcu;
  51 };
  52
  53 struct bpf_cgroup_link {
  54         struct bpf_link link;
  55         struct cgroup *cgroup;
  56         enum bpf_attach_type type;
  57 };
  58
  59 struct bpf_prog_list {
  60         struct list_head node;
  61         struct bpf_prog *prog;
  62         struct bpf_cgroup_link *link;
  63         struct bpf_cgroup_storage *storage[MAX_BPF_CGROUP_STORAGE_TYPE];
  64 };
  65
  66 struct bpf_prog_array;
  67
  68 struct cgroup_bpf {
  69         /* array of effective progs in this cgroup */
  70         struct bpf_prog_array __rcu *effective[MAX_BPF_ATTACH_TYPE];
  71
  72         /* attached progs to this cgroup and attach flags
  73          * when flags == 0 or BPF_F_ALLOW_OVERRIDE the progs list will
  74          * have either zero or one element
  75          * when BPF_F_ALLOW_MULTI the list can have up to BPF_CGROUP_MAX_PROGS
  76          */
  77         struct list_head progs[MAX_BPF_ATTACH_TYPE];
  78         u32 flags[MAX_BPF_ATTACH_TYPE];
  79
  80         /* list of cgroup shared storages */
  81         struct list_head storages;
  82
  83         /* temp storage for effective prog array used by prog_attach/detach */
  84         struct bpf_prog_array *inactive;
  85
  86         /* reference counter used to detach bpf programs after cgroup removal */
  87         struct percpu_ref refcnt;
  88
  89         /* cgroup_bpf is released using a work queue */
  90         struct work_struct release_work;
  91 };
  92
  93 int cgroup_bpf_inherit(struct cgroup *cgrp);
  94 void cgroup_bpf_offline(struct cgroup *cgrp);
  95
  96 int __cgroup_bpf_attach(struct cgroup *cgrp,
  97                         struct bpf_prog *prog, struct bpf_prog *replace_prog,
  98                         struct bpf_cgroup_link *link,
  99                         enum bpf_attach_type type, u32 flags);
 100 int __cgroup_bpf_detach(struct cgroup *cgrp, struct bpf_prog *prog,
 101                         struct bpf_cgroup_link *link,
 102                         enum bpf_attach_type type);
 103 int __cgroup_bpf_query(struct cgroup *cgrp, const union bpf_attr *attr,
 104                        union bpf_attr __user *uattr);
 105
 106 /* Wrapper for __cgroup_bpf_*() protected by cgroup_mutex */
 107 int cgroup_bpf_attach(struct cgroup *cgrp,
 108                       struct bpf_prog *prog, struct bpf_prog *replace_prog,
 109                       struct bpf_cgroup_link *link, enum bpf_attach_type type,
 110                       u32 flags);
 111 int cgroup_bpf_detach(struct cgroup *cgrp, struct bpf_prog *prog,
 112                       enum bpf_attach_type type);
 113 int cgroup_bpf_query(struct cgroup *cgrp, const union bpf_attr *attr,
 114                      union bpf_attr __user *uattr);
 115
 116 int __cgroup_bpf_run_filter_skb(struct sock *sk,
 117                                 struct sk_buff *skb,
 118                                 enum bpf_attach_type type);
 119
 120 int __cgroup_bpf_run_filter_sk(struct sock *sk,
 121                                enum bpf_attach_type type);
 122
 123 int __cgroup_bpf_run_filter_sock_addr(struct sock *sk,
 124                                       struct sockaddr *uaddr,
 125                                       enum bpf_attach_type type,
 126                                       void *t_ctx,
 127                                       u32 *flags);
 128
 129 int __cgroup_bpf_run_filter_sock_ops(struct sock *sk,
 130                                      struct bpf_sock_ops_kern *sock_ops,
 131                                      enum bpf_attach_type type);
 132
 133 int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor,
 134                                       short access, enum bpf_attach_type type);
 135
 136 int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
 137                                    struct ctl_table *table, int write,
 138                                    char **buf, size_t *pcount, loff_t *ppos,
 139                                    enum bpf_attach_type type);
 140
 141 int __cgroup_bpf_run_filter_setsockopt(struct sock *sock, int *level,
 142                                        int *optname, char __user *optval,
 143                                        int *optlen, char **kernel_optval);
 144 int __cgroup_bpf_run_filter_getsockopt(struct sock *sk, int level,
 145                                        int optname, char __user *optval,
 146                                        int __user *optlen, int max_optlen,
 147                                        int retval);
 148
 149 int __cgroup_bpf_run_filter_getsockopt_kern(struct sock *sk, int level,
 150                                             int optname, void *optval,
 151                                             int *optlen, int retval);
 152
 153 static inline enum bpf_cgroup_storage_type cgroup_storage_type(
 154         struct bpf_map *map)
 155 {
 156         if (map->map_type == BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE)
 157                 return BPF_CGROUP_STORAGE_PERCPU;
 158
 159         return BPF_CGROUP_STORAGE_SHARED;
 160 }
 161
 162 struct bpf_cgroup_storage *
 163 cgroup_storage_lookup(struct bpf_cgroup_storage_map *map,
 164                       void *key, bool locked);
 165 struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(struct bpf_prog *prog,
 166                                         enum bpf_cgroup_storage_type stype);
 167 void bpf_cgroup_storage_free(struct bpf_cgroup_storage *storage);
 168 void bpf_cgroup_storage_link(struct bpf_cgroup_storage *storage,
 169                              struct cgroup *cgroup,
 170                              enum bpf_attach_type type);
 171 void bpf_cgroup_storage_unlink(struct bpf_cgroup_storage *storage);
 172 int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux, struct bpf_map *map);
 173
 174 int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key, void *value);
 175 int bpf_percpu_cgroup_storage_update(struct bpf_map *map, void *key,
 176                                      void *value, u64 flags);
 177
 178 /* Wrappers for __cgroup_bpf_run_filter_skb() guarded by cgroup_bpf_enabled. */
 179 #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk, skb)                             \
 180 ({                                                                            \
 181         int __ret = 0;                                                        \
 182         if (cgroup_bpf_enabled(BPF_CGROUP_INET_INGRESS))                      \
 183                 __ret = __cgroup_bpf_run_filter_skb(sk, skb,                  \
 184                                                     BPF_CGROUP_INET_INGRESS); \
 185                                                                               \
 186         __ret;                                                                \
 187 })
 188
 189 #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk, skb)                               \
 190 ({                                                                             \
 191         int __ret = 0;                                                         \
 192         if (cgroup_bpf_enabled(BPF_CGROUP_INET_EGRESS) && sk && sk == skb->sk) { \
 193                 typeof(sk) __sk = sk_to_full_sk(sk);                           \
 194                 if (sk_fullsock(__sk))                                         \
 195                         __ret = __cgroup_bpf_run_filter_skb(__sk, skb,         \
 196                                                       BPF_CGROUP_INET_EGRESS); \
 197         }                                                                      \
 198         __ret;                                                                 \
 199 })
 200
 201 #define BPF_CGROUP_RUN_SK_PROG(sk, type)                                       \
 202 ({                                                                             \
 203         int __ret = 0;                                                         \
 204         if (cgroup_bpf_enabled(type)) {                                        \
 205                 __ret = __cgroup_bpf_run_filter_sk(sk, type);                  \
 206         }                                                                      \
 207         __ret;                                                                 \
 208 })
 209
 210 #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk)                                      \
 211         BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_CREATE)
 212
 213 #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk)                              \
 214         BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_RELEASE)
 215
 216 #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk)                                \
 217         BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET4_POST_BIND)
 218
 219 #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk)                                \
 220         BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET6_POST_BIND)
 221
 222 #define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, type)                                \
 223 ({                                                                             \
 224         u32 __unused_flags;                                                    \
 225         int __ret = 0;                                                         \
 226         if (cgroup_bpf_enabled(type))                                          \
 227                 __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, type,     \
 228                                                           NULL,                \
 229                                                           &__unused_flags);    \
 230         __ret;                                                                 \
 231 })
 232
 233 #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, type, t_ctx)                    \
 234 ({                                                                             \
 235         u32 __unused_flags;                                                    \
 236         int __ret = 0;                                                         \
 237         if (cgroup_bpf_enabled(type))   {                                      \
 238                 lock_sock(sk);                                                 \
 239                 __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, type,     \
 240                                                           t_ctx,               \
 241                                                           &__unused_flags);    \
 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, type, bind_flags)        \
 253 ({                                                                             \
 254         u32 __flags = 0;                                                       \
 255         int __ret = 0;                                                         \
 256         if (cgroup_bpf_enabled(type))   {                                      \
 257                 lock_sock(sk);                                                 \
 258                 __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, type,     \
 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(BPF_CGROUP_INET4_CONNECT) ||                      \
 269           cgroup_bpf_enabled(BPF_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, BPF_CGROUP_INET4_CONNECT)
 274
 275 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr)                           \
 276         BPF_CGROUP_RUN_SA_PROG(sk, uaddr, BPF_CGROUP_INET6_CONNECT)
 277
 278 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr)                      \
 279         BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_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, BPF_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, BPF_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, BPF_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, BPF_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, BPF_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(BPF_CGROUP_SOCK_OPS))                    \
 315                 __ret = __cgroup_bpf_run_filter_sock_ops(sk,            \
 316                                                          sock_ops,      \
 317                                                          BPF_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(BPF_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                                                          BPF_CGROUP_SOCK_OPS); \
 330         }                                                                      \
 331         __ret;                                                                 \
 332 })
 333
 334 #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(type, major, minor, access)         \
 335 ({                                                                            \
 336         int __ret = 0;                                                        \
 337         if (cgroup_bpf_enabled(BPF_CGROUP_DEVICE))                            \
 338                 __ret = __cgroup_bpf_check_dev_permission(type, major, minor, \
 339                                                           access,             \
 340                                                           BPF_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(BPF_CGROUP_SYSCTL))                             \
 350                 __ret = __cgroup_bpf_run_filter_sysctl(head, table, write,     \
 351                                                        buf, count, pos,        \
 352                                                        BPF_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(BPF_CGROUP_SETSOCKOPT))                         \
 361                 __ret = __cgroup_bpf_run_filter_setsockopt(sock, level,        \
 362                                                            optname, optval,    \
 363                                                            optlen,             \
 364                                                            kernel_optval);     \
 365         __ret;                                                                 \
 366 })
 367
 368 #define BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen)                               \
 369 ({                                                                             \
 370         int __ret = 0;                                                         \
 371         if (cgroup_bpf_enabled(BPF_CGROUP_GETSOCKOPT))                         \
 372                 get_user(__ret, optlen);                                       \
 373         __ret;                                                                 \
 374 })
 375
 376 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, optlen,   \
 377                                        max_optlen, retval)                     \
 378 ({                                                                             \
 379         int __ret = retval;                                                    \
 380         if (cgroup_bpf_enabled(BPF_CGROUP_GETSOCKOPT))                         \
 381                 if (!(sock)->sk_prot->bpf_bypass_getsockopt ||                 \
 382                     !INDIRECT_CALL_INET_1((sock)->sk_prot->bpf_bypass_getsockopt, \
 383                                         tcp_bpf_bypass_getsockopt,             \
 384                                         level, optname))                       \
 385                         __ret = __cgroup_bpf_run_filter_getsockopt(            \
 386                                 sock, level, optname, optval, optlen,          \
 387                                 max_optlen, retval);                           \
 388         __ret;                                                                 \
 389 })
 390
 391 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval,      \
 392                                             optlen, retval)                    \
 393 ({                                                                             \
 394         int __ret = retval;                                                    \
 395         if (cgroup_bpf_enabled(BPF_CGROUP_GETSOCKOPT))                         \
 396                 __ret = __cgroup_bpf_run_filter_getsockopt_kern(               \
 397                         sock, level, optname, optval, optlen, retval);         \
 398         __ret;                                                                 \
 399 })
 400
 401 int cgroup_bpf_prog_attach(const union bpf_attr *attr,
 402                            enum bpf_prog_type ptype, struct bpf_prog *prog);
 403 int cgroup_bpf_prog_detach(const union bpf_attr *attr,
 404                            enum bpf_prog_type ptype);
 405 int cgroup_bpf_link_attach(const union bpf_attr *attr, struct bpf_prog *prog);
 406 int cgroup_bpf_prog_query(const union bpf_attr *attr,
 407                           union bpf_attr __user *uattr);
 408 #else
 409
 410 struct cgroup_bpf {};
 411 static inline int cgroup_bpf_inherit(struct cgroup *cgrp) { return 0; }
 412 static inline void cgroup_bpf_offline(struct cgroup *cgrp) {}
 413
 414 static inline int cgroup_bpf_prog_attach(const union bpf_attr *attr,
 415                                          enum bpf_prog_type ptype,
 416                                          struct bpf_prog *prog)
 417 {
 418         return -EINVAL;
 419 }
 420
 421 static inline int cgroup_bpf_prog_detach(const union bpf_attr *attr,
 422                                          enum bpf_prog_type ptype)
 423 {
 424         return -EINVAL;
 425 }
 426
 427 static inline int cgroup_bpf_link_attach(const union bpf_attr *attr,
 428                                          struct bpf_prog *prog)
 429 {
 430         return -EINVAL;
 431 }
 432
 433 static inline int cgroup_bpf_prog_query(const union bpf_attr *attr,
 434                                         union bpf_attr __user *uattr)
 435 {
 436         return -EINVAL;
 437 }
 438
 439 static inline int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux,
 440                                             struct bpf_map *map) { return 0; }
 441 static inline struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(
 442         struct bpf_prog *prog, enum bpf_cgroup_storage_type stype) { return NULL; }
 443 static inline void bpf_cgroup_storage_free(
 444         struct bpf_cgroup_storage *storage) {}
 445 static inline int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key,
 446                                                  void *value) {
 447         return 0;
 448 }
 449 static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map,
 450                                         void *key, void *value, u64 flags) {
 451         return 0;
 452 }
 453
 454 #define cgroup_bpf_enabled(type) (0)
 455 #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, type, t_ctx) ({ 0; })
 456 #define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) (0)
 457 #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; })
 458 #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; })
 459 #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; })
 460 #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; })
 461 #define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, type, flags) ({ 0; })
 462 #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; })
 463 #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) ({ 0; })
 464 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr) ({ 0; })
 465 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr) ({ 0; })
 466 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr) ({ 0; })
 467 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr) ({ 0; })
 468 #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
 469 #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
 470 #define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr) ({ 0; })
 471 #define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr) ({ 0; })
 472 #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; })
 473 #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(type,major,minor,access) ({ 0; })
 474 #define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,pos) ({ 0; })
 475 #define BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen) ({ 0; })
 476 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, \
 477                                        optlen, max_optlen, retval) ({ retval; })
 478 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \
 479                                             optlen, retval) ({ retval; })
 480 #define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \
 481                                        kernel_optval) ({ 0; })
 482
 483 #define for_each_cgroup_storage_type(stype) for (; false; )
 484
 485 #endif /* CONFIG_CGROUP_BPF */
 486
 487 #endif /* _BPF_CGROUP_H */