Line data Source code
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 :
24 : #ifdef CONFIG_CGROUP_BPF
25 :
26 : extern struct static_key_false cgroup_bpf_enabled_key[MAX_BPF_ATTACH_TYPE];
27 : #define cgroup_bpf_enabled(type) static_branch_unlikely(&cgroup_bpf_enabled_key[type])
28 :
29 : DECLARE_PER_CPU(struct bpf_cgroup_storage*,
30 : bpf_cgroup_storage[MAX_BPF_CGROUP_STORAGE_TYPE]);
31 :
32 : #define for_each_cgroup_storage_type(stype) \
33 : for (stype = 0; stype < MAX_BPF_CGROUP_STORAGE_TYPE; stype++)
34 :
35 : struct bpf_cgroup_storage_map;
36 :
37 : struct bpf_storage_buffer {
38 : struct rcu_head rcu;
39 : char data[];
40 : };
41 :
42 : struct bpf_cgroup_storage {
43 : union {
44 : struct bpf_storage_buffer *buf;
45 : void __percpu *percpu_buf;
46 : };
47 : struct bpf_cgroup_storage_map *map;
48 : struct bpf_cgroup_storage_key key;
49 : struct list_head list_map;
50 : struct list_head list_cg;
51 : struct rb_node node;
52 : struct rcu_head rcu;
53 : };
54 :
55 : struct bpf_cgroup_link {
56 : struct bpf_link link;
57 : struct cgroup *cgroup;
58 : enum bpf_attach_type type;
59 : };
60 :
61 : struct bpf_prog_list {
62 : struct list_head node;
63 : struct bpf_prog *prog;
64 : struct bpf_cgroup_link *link;
65 : struct bpf_cgroup_storage *storage[MAX_BPF_CGROUP_STORAGE_TYPE];
66 : };
67 :
68 : struct bpf_prog_array;
69 :
70 : struct cgroup_bpf {
71 : /* array of effective progs in this cgroup */
72 : struct bpf_prog_array __rcu *effective[MAX_BPF_ATTACH_TYPE];
73 :
74 : /* attached progs to this cgroup and attach flags
75 : * when flags == 0 or BPF_F_ALLOW_OVERRIDE the progs list will
76 : * have either zero or one element
77 : * when BPF_F_ALLOW_MULTI the list can have up to BPF_CGROUP_MAX_PROGS
78 : */
79 : struct list_head progs[MAX_BPF_ATTACH_TYPE];
80 : u32 flags[MAX_BPF_ATTACH_TYPE];
81 :
82 : /* list of cgroup shared storages */
83 : struct list_head storages;
84 :
85 : /* temp storage for effective prog array used by prog_attach/detach */
86 : struct bpf_prog_array *inactive;
87 :
88 : /* reference counter used to detach bpf programs after cgroup removal */
89 : struct percpu_ref refcnt;
90 :
91 : /* cgroup_bpf is released using a work queue */
92 : struct work_struct release_work;
93 : };
94 :
95 : int cgroup_bpf_inherit(struct cgroup *cgrp);
96 : void cgroup_bpf_offline(struct cgroup *cgrp);
97 :
98 : int __cgroup_bpf_attach(struct cgroup *cgrp,
99 : struct bpf_prog *prog, struct bpf_prog *replace_prog,
100 : struct bpf_cgroup_link *link,
101 : enum bpf_attach_type type, u32 flags);
102 : int __cgroup_bpf_detach(struct cgroup *cgrp, struct bpf_prog *prog,
103 : struct bpf_cgroup_link *link,
104 : enum bpf_attach_type type);
105 : int __cgroup_bpf_query(struct cgroup *cgrp, const union bpf_attr *attr,
106 : union bpf_attr __user *uattr);
107 :
108 : /* Wrapper for __cgroup_bpf_*() protected by cgroup_mutex */
109 : int cgroup_bpf_attach(struct cgroup *cgrp,
110 : struct bpf_prog *prog, struct bpf_prog *replace_prog,
111 : struct bpf_cgroup_link *link, enum bpf_attach_type type,
112 : u32 flags);
113 : int cgroup_bpf_detach(struct cgroup *cgrp, struct bpf_prog *prog,
114 : enum bpf_attach_type type);
115 : int cgroup_bpf_query(struct cgroup *cgrp, const union bpf_attr *attr,
116 : union bpf_attr __user *uattr);
117 :
118 : int __cgroup_bpf_run_filter_skb(struct sock *sk,
119 : struct sk_buff *skb,
120 : enum bpf_attach_type type);
121 :
122 : int __cgroup_bpf_run_filter_sk(struct sock *sk,
123 : enum bpf_attach_type type);
124 :
125 : int __cgroup_bpf_run_filter_sock_addr(struct sock *sk,
126 : struct sockaddr *uaddr,
127 : enum bpf_attach_type type,
128 : void *t_ctx,
129 : u32 *flags);
130 :
131 : int __cgroup_bpf_run_filter_sock_ops(struct sock *sk,
132 : struct bpf_sock_ops_kern *sock_ops,
133 : enum bpf_attach_type type);
134 :
135 : int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor,
136 : short access, enum bpf_attach_type type);
137 :
138 : int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
139 : struct ctl_table *table, int write,
140 : char **buf, size_t *pcount, loff_t *ppos,
141 : enum bpf_attach_type type);
142 :
143 : int __cgroup_bpf_run_filter_setsockopt(struct sock *sock, int *level,
144 : int *optname, char __user *optval,
145 : int *optlen, char **kernel_optval);
146 : int __cgroup_bpf_run_filter_getsockopt(struct sock *sk, int level,
147 : int optname, char __user *optval,
148 : int __user *optlen, int max_optlen,
149 : int retval);
150 :
151 : int __cgroup_bpf_run_filter_getsockopt_kern(struct sock *sk, int level,
152 : int optname, void *optval,
153 : int *optlen, int retval);
154 :
155 : static inline enum bpf_cgroup_storage_type cgroup_storage_type(
156 : struct bpf_map *map)
157 : {
158 : if (map->map_type == BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE)
159 : return BPF_CGROUP_STORAGE_PERCPU;
160 :
161 : return BPF_CGROUP_STORAGE_SHARED;
162 : }
163 :
164 : static inline void bpf_cgroup_storage_set(struct bpf_cgroup_storage
165 : *storage[MAX_BPF_CGROUP_STORAGE_TYPE])
166 : {
167 : enum bpf_cgroup_storage_type stype;
168 :
169 : for_each_cgroup_storage_type(stype)
170 : this_cpu_write(bpf_cgroup_storage[stype], storage[stype]);
171 : }
172 :
173 : struct bpf_cgroup_storage *
174 : cgroup_storage_lookup(struct bpf_cgroup_storage_map *map,
175 : void *key, bool locked);
176 : struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(struct bpf_prog *prog,
177 : enum bpf_cgroup_storage_type stype);
178 : void bpf_cgroup_storage_free(struct bpf_cgroup_storage *storage);
179 : void bpf_cgroup_storage_link(struct bpf_cgroup_storage *storage,
180 : struct cgroup *cgroup,
181 : enum bpf_attach_type type);
182 : void bpf_cgroup_storage_unlink(struct bpf_cgroup_storage *storage);
183 : int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux, struct bpf_map *map);
184 :
185 : int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key, void *value);
186 : int bpf_percpu_cgroup_storage_update(struct bpf_map *map, void *key,
187 : void *value, u64 flags);
188 :
189 : /* Wrappers for __cgroup_bpf_run_filter_skb() guarded by cgroup_bpf_enabled. */
190 : #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk, skb) \
191 : ({ \
192 : int __ret = 0; \
193 : if (cgroup_bpf_enabled(BPF_CGROUP_INET_INGRESS)) \
194 : __ret = __cgroup_bpf_run_filter_skb(sk, skb, \
195 : BPF_CGROUP_INET_INGRESS); \
196 : \
197 : __ret; \
198 : })
199 :
200 : #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk, skb) \
201 : ({ \
202 : int __ret = 0; \
203 : if (cgroup_bpf_enabled(BPF_CGROUP_INET_EGRESS) && sk && sk == skb->sk) { \
204 : typeof(sk) __sk = sk_to_full_sk(sk); \
205 : if (sk_fullsock(__sk)) \
206 : __ret = __cgroup_bpf_run_filter_skb(__sk, skb, \
207 : BPF_CGROUP_INET_EGRESS); \
208 : } \
209 : __ret; \
210 : })
211 :
212 : #define BPF_CGROUP_RUN_SK_PROG(sk, type) \
213 : ({ \
214 : int __ret = 0; \
215 : if (cgroup_bpf_enabled(type)) { \
216 : __ret = __cgroup_bpf_run_filter_sk(sk, type); \
217 : } \
218 : __ret; \
219 : })
220 :
221 : #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) \
222 : BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_CREATE)
223 :
224 : #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) \
225 : BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_RELEASE)
226 :
227 : #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) \
228 : BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET4_POST_BIND)
229 :
230 : #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) \
231 : BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET6_POST_BIND)
232 :
233 : #define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, type) \
234 : ({ \
235 : u32 __unused_flags; \
236 : int __ret = 0; \
237 : if (cgroup_bpf_enabled(type)) \
238 : __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, type, \
239 : NULL, \
240 : &__unused_flags); \
241 : __ret; \
242 : })
243 :
244 : #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, type, t_ctx) \
245 : ({ \
246 : u32 __unused_flags; \
247 : int __ret = 0; \
248 : if (cgroup_bpf_enabled(type)) { \
249 : lock_sock(sk); \
250 : __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, type, \
251 : t_ctx, \
252 : &__unused_flags); \
253 : release_sock(sk); \
254 : } \
255 : __ret; \
256 : })
257 :
258 : /* BPF_CGROUP_INET4_BIND and BPF_CGROUP_INET6_BIND can return extra flags
259 : * via upper bits of return code. The only flag that is supported
260 : * (at bit position 0) is to indicate CAP_NET_BIND_SERVICE capability check
261 : * should be bypassed (BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE).
262 : */
263 : #define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, type, bind_flags) \
264 : ({ \
265 : u32 __flags = 0; \
266 : int __ret = 0; \
267 : if (cgroup_bpf_enabled(type)) { \
268 : lock_sock(sk); \
269 : __ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, type, \
270 : NULL, &__flags); \
271 : release_sock(sk); \
272 : if (__flags & BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE) \
273 : *bind_flags |= BIND_NO_CAP_NET_BIND_SERVICE; \
274 : } \
275 : __ret; \
276 : })
277 :
278 : #define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) \
279 : ((cgroup_bpf_enabled(BPF_CGROUP_INET4_CONNECT) || \
280 : cgroup_bpf_enabled(BPF_CGROUP_INET6_CONNECT)) && \
281 : (sk)->sk_prot->pre_connect)
282 :
283 : #define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr) \
284 : BPF_CGROUP_RUN_SA_PROG(sk, uaddr, BPF_CGROUP_INET4_CONNECT)
285 :
286 : #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr) \
287 : BPF_CGROUP_RUN_SA_PROG(sk, uaddr, BPF_CGROUP_INET6_CONNECT)
288 :
289 : #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr) \
290 : BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_INET4_CONNECT, NULL)
291 :
292 : #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr) \
293 : BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_INET6_CONNECT, NULL)
294 :
295 : #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, t_ctx) \
296 : BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP4_SENDMSG, t_ctx)
297 :
298 : #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) \
299 : BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP6_SENDMSG, t_ctx)
300 :
301 : #define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr) \
302 : BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP4_RECVMSG, NULL)
303 :
304 : #define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr) \
305 : BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, BPF_CGROUP_UDP6_RECVMSG, NULL)
306 :
307 : /* The SOCK_OPS"_SK" macro should be used when sock_ops->sk is not a
308 : * fullsock and its parent fullsock cannot be traced by
309 : * sk_to_full_sk().
310 : *
311 : * e.g. sock_ops->sk is a request_sock and it is under syncookie mode.
312 : * Its listener-sk is not attached to the rsk_listener.
313 : * In this case, the caller holds the listener-sk (unlocked),
314 : * set its sock_ops->sk to req_sk, and call this SOCK_OPS"_SK" with
315 : * the listener-sk such that the cgroup-bpf-progs of the
316 : * listener-sk will be run.
317 : *
318 : * Regardless of syncookie mode or not,
319 : * calling bpf_setsockopt on listener-sk will not make sense anyway,
320 : * so passing 'sock_ops->sk == req_sk' to the bpf prog is appropriate here.
321 : */
322 : #define BPF_CGROUP_RUN_PROG_SOCK_OPS_SK(sock_ops, sk) \
323 : ({ \
324 : int __ret = 0; \
325 : if (cgroup_bpf_enabled(BPF_CGROUP_SOCK_OPS)) \
326 : __ret = __cgroup_bpf_run_filter_sock_ops(sk, \
327 : sock_ops, \
328 : BPF_CGROUP_SOCK_OPS); \
329 : __ret; \
330 : })
331 :
332 : #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) \
333 : ({ \
334 : int __ret = 0; \
335 : if (cgroup_bpf_enabled(BPF_CGROUP_SOCK_OPS) && (sock_ops)->sk) { \
336 : typeof(sk) __sk = sk_to_full_sk((sock_ops)->sk); \
337 : if (__sk && sk_fullsock(__sk)) \
338 : __ret = __cgroup_bpf_run_filter_sock_ops(__sk, \
339 : sock_ops, \
340 : BPF_CGROUP_SOCK_OPS); \
341 : } \
342 : __ret; \
343 : })
344 :
345 : #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(type, major, minor, access) \
346 : ({ \
347 : int __ret = 0; \
348 : if (cgroup_bpf_enabled(BPF_CGROUP_DEVICE)) \
349 : __ret = __cgroup_bpf_check_dev_permission(type, major, minor, \
350 : access, \
351 : BPF_CGROUP_DEVICE); \
352 : \
353 : __ret; \
354 : })
355 :
356 :
357 : #define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write, buf, count, pos) \
358 : ({ \
359 : int __ret = 0; \
360 : if (cgroup_bpf_enabled(BPF_CGROUP_SYSCTL)) \
361 : __ret = __cgroup_bpf_run_filter_sysctl(head, table, write, \
362 : buf, count, pos, \
363 : BPF_CGROUP_SYSCTL); \
364 : __ret; \
365 : })
366 :
367 : #define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \
368 : kernel_optval) \
369 : ({ \
370 : int __ret = 0; \
371 : if (cgroup_bpf_enabled(BPF_CGROUP_SETSOCKOPT)) \
372 : __ret = __cgroup_bpf_run_filter_setsockopt(sock, level, \
373 : optname, optval, \
374 : optlen, \
375 : kernel_optval); \
376 : __ret; \
377 : })
378 :
379 : #define BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen) \
380 : ({ \
381 : int __ret = 0; \
382 : if (cgroup_bpf_enabled(BPF_CGROUP_GETSOCKOPT)) \
383 : get_user(__ret, optlen); \
384 : __ret; \
385 : })
386 :
387 : #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, optlen, \
388 : max_optlen, retval) \
389 : ({ \
390 : int __ret = retval; \
391 : if (cgroup_bpf_enabled(BPF_CGROUP_GETSOCKOPT)) \
392 : if (!(sock)->sk_prot->bpf_bypass_getsockopt || \
393 : !INDIRECT_CALL_INET_1((sock)->sk_prot->bpf_bypass_getsockopt, \
394 : tcp_bpf_bypass_getsockopt, \
395 : level, optname)) \
396 : __ret = __cgroup_bpf_run_filter_getsockopt( \
397 : sock, level, optname, optval, optlen, \
398 : max_optlen, retval); \
399 : __ret; \
400 : })
401 :
402 : #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \
403 : optlen, retval) \
404 : ({ \
405 : int __ret = retval; \
406 : if (cgroup_bpf_enabled(BPF_CGROUP_GETSOCKOPT)) \
407 : __ret = __cgroup_bpf_run_filter_getsockopt_kern( \
408 : sock, level, optname, optval, optlen, retval); \
409 : __ret; \
410 : })
411 :
412 : int cgroup_bpf_prog_attach(const union bpf_attr *attr,
413 : enum bpf_prog_type ptype, struct bpf_prog *prog);
414 : int cgroup_bpf_prog_detach(const union bpf_attr *attr,
415 : enum bpf_prog_type ptype);
416 : int cgroup_bpf_link_attach(const union bpf_attr *attr, struct bpf_prog *prog);
417 : int cgroup_bpf_prog_query(const union bpf_attr *attr,
418 : union bpf_attr __user *uattr);
419 : #else
420 :
421 : struct bpf_prog;
422 : struct cgroup_bpf {};
423 100 : static inline int cgroup_bpf_inherit(struct cgroup *cgrp) { return 0; }
424 50 : static inline void cgroup_bpf_offline(struct cgroup *cgrp) {}
425 :
426 : static inline int cgroup_bpf_prog_attach(const union bpf_attr *attr,
427 : enum bpf_prog_type ptype,
428 : struct bpf_prog *prog)
429 : {
430 : return -EINVAL;
431 : }
432 :
433 : static inline int cgroup_bpf_prog_detach(const union bpf_attr *attr,
434 : enum bpf_prog_type ptype)
435 : {
436 : return -EINVAL;
437 : }
438 :
439 : static inline int cgroup_bpf_link_attach(const union bpf_attr *attr,
440 : struct bpf_prog *prog)
441 : {
442 : return -EINVAL;
443 : }
444 :
445 : static inline int cgroup_bpf_prog_query(const union bpf_attr *attr,
446 : union bpf_attr __user *uattr)
447 : {
448 : return -EINVAL;
449 : }
450 :
451 : static inline void bpf_cgroup_storage_set(
452 : struct bpf_cgroup_storage *storage[MAX_BPF_CGROUP_STORAGE_TYPE]) {}
453 : static inline int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux,
454 : struct bpf_map *map) { return 0; }
455 : static inline struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(
456 : struct bpf_prog *prog, enum bpf_cgroup_storage_type stype) { return NULL; }
457 : static inline void bpf_cgroup_storage_free(
458 : struct bpf_cgroup_storage *storage) {}
459 : static inline int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key,
460 : void *value) {
461 : return 0;
462 : }
463 : static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map,
464 : void *key, void *value, u64 flags) {
465 : return 0;
466 : }
467 :
468 : #define cgroup_bpf_enabled(type) (0)
469 : #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, type, t_ctx) ({ 0; })
470 : #define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) (0)
471 : #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; })
472 : #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; })
473 : #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; })
474 : #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; })
475 : #define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, type, flags) ({ 0; })
476 : #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; })
477 : #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) ({ 0; })
478 : #define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr) ({ 0; })
479 : #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr) ({ 0; })
480 : #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr) ({ 0; })
481 : #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr) ({ 0; })
482 : #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
483 : #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
484 : #define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr) ({ 0; })
485 : #define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr) ({ 0; })
486 : #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; })
487 : #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(type,major,minor,access) ({ 0; })
488 : #define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,pos) ({ 0; })
489 : #define BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen) ({ 0; })
490 : #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, \
491 : optlen, max_optlen, retval) ({ retval; })
492 : #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \
493 : optlen, retval) ({ retval; })
494 : #define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \
495 : kernel_optval) ({ 0; })
496 :
497 : #define for_each_cgroup_storage_type(stype) for (; false; )
498 :
499 : #endif /* CONFIG_CGROUP_BPF */
500 :
501 : #endif /* _BPF_CGROUP_H */
|
