include/linux/bpf-cgroup.h - linux - Git at Google

 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BPF_CGROUP_H
 #define _BPF_CGROUP_H

 #include <linux/bpf.h>
 #include <linux/errno.h>
 #include <linux/jump_label.h>
 #include <linux/percpu.h>
 #include <linux/percpu-refcount.h>
 #include <linux/rbtree.h>
 #include <uapi/linux/bpf.h>

 struct sock;
 struct sockaddr;
 struct cgroup;
 struct sk_buff;
 struct bpf_map;
 struct bpf_prog;
 struct bpf_sock_ops_kern;
 struct bpf_cgroup_storage;
 struct ctl_table;
 struct ctl_table_header;
 struct task_struct;

 #ifdef CONFIG_CGROUP_BPF
 enum cgroup_bpf_attach_type {
 	CGROUP_BPF_ATTACH_TYPE_INVALID = -1,
 	CGROUP_INET_INGRESS = 0,
 	CGROUP_INET_EGRESS,
 	CGROUP_INET_SOCK_CREATE,
 	CGROUP_SOCK_OPS,
 	CGROUP_DEVICE,
 	CGROUP_INET4_BIND,
 	CGROUP_INET6_BIND,
 	CGROUP_INET4_CONNECT,
 	CGROUP_INET6_CONNECT,
 	CGROUP_INET4_POST_BIND,
 	CGROUP_INET6_POST_BIND,
 	CGROUP_UDP4_SENDMSG,
 	CGROUP_UDP6_SENDMSG,
 	CGROUP_SYSCTL,
 	CGROUP_UDP4_RECVMSG,
 	CGROUP_UDP6_RECVMSG,
 	CGROUP_GETSOCKOPT,
 	CGROUP_SETSOCKOPT,
 	CGROUP_INET4_GETPEERNAME,
 	CGROUP_INET6_GETPEERNAME,
 	CGROUP_INET4_GETSOCKNAME,
 	CGROUP_INET6_GETSOCKNAME,
 	CGROUP_INET_SOCK_RELEASE,
 	MAX_CGROUP_BPF_ATTACH_TYPE
 };

 #define CGROUP_ATYPE(type) \
 	case BPF_##type: return type

 static inline enum cgroup_bpf_attach_type
 to_cgroup_bpf_attach_type(enum bpf_attach_type attach_type)
 {
 	switch (attach_type) {
 	CGROUP_ATYPE(CGROUP_INET_INGRESS);
 	CGROUP_ATYPE(CGROUP_INET_EGRESS);
 	CGROUP_ATYPE(CGROUP_INET_SOCK_CREATE);
 	CGROUP_ATYPE(CGROUP_SOCK_OPS);
 	CGROUP_ATYPE(CGROUP_DEVICE);
 	CGROUP_ATYPE(CGROUP_INET4_BIND);
 	CGROUP_ATYPE(CGROUP_INET6_BIND);
 	CGROUP_ATYPE(CGROUP_INET4_CONNECT);
 	CGROUP_ATYPE(CGROUP_INET6_CONNECT);
 	CGROUP_ATYPE(CGROUP_INET4_POST_BIND);
 	CGROUP_ATYPE(CGROUP_INET6_POST_BIND);
 	CGROUP_ATYPE(CGROUP_UDP4_SENDMSG);
 	CGROUP_ATYPE(CGROUP_UDP6_SENDMSG);
 	CGROUP_ATYPE(CGROUP_SYSCTL);
 	CGROUP_ATYPE(CGROUP_UDP4_RECVMSG);
 	CGROUP_ATYPE(CGROUP_UDP6_RECVMSG);
 	CGROUP_ATYPE(CGROUP_GETSOCKOPT);
 	CGROUP_ATYPE(CGROUP_SETSOCKOPT);
 	CGROUP_ATYPE(CGROUP_INET4_GETPEERNAME);
 	CGROUP_ATYPE(CGROUP_INET6_GETPEERNAME);
 	CGROUP_ATYPE(CGROUP_INET4_GETSOCKNAME);
 	CGROUP_ATYPE(CGROUP_INET6_GETSOCKNAME);
 	CGROUP_ATYPE(CGROUP_INET_SOCK_RELEASE);
 	default:
 		return CGROUP_BPF_ATTACH_TYPE_INVALID;
 	}
 }

 #undef CGROUP_ATYPE

 extern struct static_key_false cgroup_bpf_enabled_key[MAX_CGROUP_BPF_ATTACH_TYPE];
 #define cgroup_bpf_enabled(atype) static_branch_unlikely(&cgroup_bpf_enabled_key[atype])

 #define for_each_cgroup_storage_type(stype) \
 	for (stype = 0; stype < MAX_BPF_CGROUP_STORAGE_TYPE; stype++)

 struct bpf_cgroup_storage_map;

 struct bpf_storage_buffer {
 	struct rcu_head rcu;
 	char data[];
 };

 struct bpf_cgroup_storage {
 	union {
 		struct bpf_storage_buffer *buf;
 		void __percpu *percpu_buf;
 	};
 	struct bpf_cgroup_storage_map *map;
 	struct bpf_cgroup_storage_key key;
 	struct list_head list_map;
 	struct list_head list_cg;
 	struct rb_node node;
 	struct rcu_head rcu;
 };

 struct bpf_cgroup_link {
 	struct bpf_link link;
 	struct cgroup *cgroup;
 	enum bpf_attach_type type;
 };

 struct bpf_prog_list {
 	struct list_head node;
 	struct bpf_prog *prog;
 	struct bpf_cgroup_link *link;
 	struct bpf_cgroup_storage *storage[MAX_BPF_CGROUP_STORAGE_TYPE];
 };

 struct bpf_prog_array;

 struct cgroup_bpf {
 	/* array of effective progs in this cgroup */
 	struct bpf_prog_array __rcu *effective[MAX_CGROUP_BPF_ATTACH_TYPE];

 	/* attached progs to this cgroup and attach flags
 	 * when flags == 0 or BPF_F_ALLOW_OVERRIDE the progs list will
 	 * have either zero or one element
 	 * when BPF_F_ALLOW_MULTI the list can have up to BPF_CGROUP_MAX_PROGS
 	 */
 	struct list_head progs[MAX_CGROUP_BPF_ATTACH_TYPE];
 	u32 flags[MAX_CGROUP_BPF_ATTACH_TYPE];

 	/* list of cgroup shared storages */
 	struct list_head storages;

 	/* temp storage for effective prog array used by prog_attach/detach */
 	struct bpf_prog_array *inactive;

 	/* reference counter used to detach bpf programs after cgroup removal */
 	struct percpu_ref refcnt;

 	/* cgroup_bpf is released using a work queue */
 	struct work_struct release_work;
 };

 int cgroup_bpf_inherit(struct cgroup *cgrp);
 void cgroup_bpf_offline(struct cgroup *cgrp);

 int __cgroup_bpf_run_filter_skb(struct sock *sk,
 				struct sk_buff *skb,
 				enum cgroup_bpf_attach_type atype);

 int __cgroup_bpf_run_filter_sk(struct sock *sk,
 			       enum cgroup_bpf_attach_type atype);

 int __cgroup_bpf_run_filter_sock_addr(struct sock *sk,
 				      struct sockaddr *uaddr,
 				      enum cgroup_bpf_attach_type atype,
 				      void *t_ctx,
 				      u32 *flags);

 int __cgroup_bpf_run_filter_sock_ops(struct sock *sk,
 				     struct bpf_sock_ops_kern *sock_ops,
 				     enum cgroup_bpf_attach_type atype);

 int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor,
 				      short access, enum cgroup_bpf_attach_type atype);

 int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
 				   struct ctl_table *table, int write,
 				   char **buf, size_t *pcount, loff_t *ppos,
 				   enum cgroup_bpf_attach_type atype);

 int __cgroup_bpf_run_filter_setsockopt(struct sock *sock, int *level,
 				       int *optname, char __user *optval,
 				       int *optlen, char **kernel_optval);
 int __cgroup_bpf_run_filter_getsockopt(struct sock *sk, int level,
 				       int optname, char __user *optval,
 				       int __user *optlen, int max_optlen,
 				       int retval);

 int __cgroup_bpf_run_filter_getsockopt_kern(struct sock *sk, int level,
 					    int optname, void *optval,
 					    int *optlen, int retval);

 static inline enum bpf_cgroup_storage_type cgroup_storage_type(
 	struct bpf_map *map)
 {
 	if (map->map_type == BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE)
 		return BPF_CGROUP_STORAGE_PERCPU;

 	return BPF_CGROUP_STORAGE_SHARED;
 }

 struct bpf_cgroup_storage *
 cgroup_storage_lookup(struct bpf_cgroup_storage_map *map,
 		      void *key, bool locked);
 struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(struct bpf_prog *prog,
 					enum bpf_cgroup_storage_type stype);
 void bpf_cgroup_storage_free(struct bpf_cgroup_storage *storage);
 void bpf_cgroup_storage_link(struct bpf_cgroup_storage *storage,
 			     struct cgroup *cgroup,
 			     enum bpf_attach_type type);
 void bpf_cgroup_storage_unlink(struct bpf_cgroup_storage *storage);
 int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux, struct bpf_map *map);

 int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key, void *value);
 int bpf_percpu_cgroup_storage_update(struct bpf_map *map, void *key,
 				     void *value, u64 flags);

 /* Wrappers for __cgroup_bpf_run_filter_skb() guarded by cgroup_bpf_enabled. */
 #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk, skb)			      \
 ({									      \
 	int __ret = 0;							      \
 	if (cgroup_bpf_enabled(CGROUP_INET_INGRESS))		      \
 		__ret = __cgroup_bpf_run_filter_skb(sk, skb,		      \
 						    CGROUP_INET_INGRESS); \
 									      \
 	__ret;								      \
 })

 #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk, skb)			       \
 ({									       \
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled(CGROUP_INET_EGRESS) && sk && sk == skb->sk) { \
 		typeof(sk) __sk = sk_to_full_sk(sk);			       \
 		if (sk_fullsock(__sk))					       \
 			__ret = __cgroup_bpf_run_filter_skb(__sk, skb,	       \
 						      CGROUP_INET_EGRESS); \
 	}								       \
 	__ret;								       \
 })

 #define BPF_CGROUP_RUN_SK_PROG(sk, atype)				       \
 ({									       \
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled(atype)) {					       \
 		__ret = __cgroup_bpf_run_filter_sk(sk, atype);		       \
 	}								       \
 	__ret;								       \
 })

 #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk)				       \
 	BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET_SOCK_CREATE)

 #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk)			       \
 	BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET_SOCK_RELEASE)

 #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk)				       \
 	BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET4_POST_BIND)

 #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk)				       \
 	BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET6_POST_BIND)

 #define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, atype)				       \
 ({									       \
 	u32 __unused_flags;						       \
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled(atype))					       \
 		__ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, atype,     \
 							  NULL,		       \
 							  &__unused_flags);    \
 	__ret;								       \
 })

 #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, atype, t_ctx)		       \
 ({									       \
 	u32 __unused_flags;						       \
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled(atype))	{				       \
 		lock_sock(sk);						       \
 		__ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, atype,     \
 							  t_ctx,	       \
 							  &__unused_flags);    \
 		release_sock(sk);					       \
 	}								       \
 	__ret;								       \
 })

 /* BPF_CGROUP_INET4_BIND and BPF_CGROUP_INET6_BIND can return extra flags
  * via upper bits of return code. The only flag that is supported
  * (at bit position 0) is to indicate CAP_NET_BIND_SERVICE capability check
  * should be bypassed (BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE).
  */
 #define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, atype, bind_flags)	       \
 ({									       \
 	u32 __flags = 0;						       \
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled(atype))	{				       \
 		lock_sock(sk);						       \
 		__ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, atype,     \
 							  NULL, &__flags);     \
 		release_sock(sk);					       \
 		if (__flags & BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE)	       \
 			*bind_flags |= BIND_NO_CAP_NET_BIND_SERVICE;	       \
 	}								       \
 	__ret;								       \
 })

 #define BPF_CGROUP_PRE_CONNECT_ENABLED(sk)				       \
 	((cgroup_bpf_enabled(CGROUP_INET4_CONNECT) ||		       \
 	  cgroup_bpf_enabled(CGROUP_INET6_CONNECT)) &&		       \
 	 (sk)->sk_prot->pre_connect)

 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr)			       \
 	BPF_CGROUP_RUN_SA_PROG(sk, uaddr, CGROUP_INET4_CONNECT)

 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr)			       \
 	BPF_CGROUP_RUN_SA_PROG(sk, uaddr, CGROUP_INET6_CONNECT)

 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr)		       \
 	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_INET4_CONNECT, NULL)

 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr)		       \
 	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_INET6_CONNECT, NULL)

 #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, t_ctx)		       \
 	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_UDP4_SENDMSG, t_ctx)

 #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx)		       \
 	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_UDP6_SENDMSG, t_ctx)

 #define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr)			\
 	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_UDP4_RECVMSG, NULL)

 #define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr)			\
 	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_UDP6_RECVMSG, NULL)

 /* The SOCK_OPS"_SK" macro should be used when sock_ops->sk is not a
  * fullsock and its parent fullsock cannot be traced by
  * sk_to_full_sk().
  *
  * e.g. sock_ops->sk is a request_sock and it is under syncookie mode.
  * Its listener-sk is not attached to the rsk_listener.
  * In this case, the caller holds the listener-sk (unlocked),
  * set its sock_ops->sk to req_sk, and call this SOCK_OPS"_SK" with
  * the listener-sk such that the cgroup-bpf-progs of the
  * listener-sk will be run.
  *
  * Regardless of syncookie mode or not,
  * calling bpf_setsockopt on listener-sk will not make sense anyway,
  * so passing 'sock_ops->sk == req_sk' to the bpf prog is appropriate here.
  */
 #define BPF_CGROUP_RUN_PROG_SOCK_OPS_SK(sock_ops, sk)			\
 ({									\
 	int __ret = 0;							\
 	if (cgroup_bpf_enabled(CGROUP_SOCK_OPS))			\
 		__ret = __cgroup_bpf_run_filter_sock_ops(sk,		\
 							 sock_ops,	\
 							 CGROUP_SOCK_OPS); \
 	__ret;								\
 })

 #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops)				       \
 ({									       \
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled(CGROUP_SOCK_OPS) && (sock_ops)->sk) {       \
 		typeof(sk) __sk = sk_to_full_sk((sock_ops)->sk);	       \
 		if (__sk && sk_fullsock(__sk))				       \
 			__ret = __cgroup_bpf_run_filter_sock_ops(__sk,	       \
 								 sock_ops,     \
 							 CGROUP_SOCK_OPS); \
 	}								       \
 	__ret;								       \
 })

 #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(atype, major, minor, access)	      \
 ({									      \
 	int __ret = 0;							      \
 	if (cgroup_bpf_enabled(CGROUP_DEVICE))			      \
 		__ret = __cgroup_bpf_check_dev_permission(atype, major, minor, \
 							  access,	      \
 							  CGROUP_DEVICE); \
 									      \
 	__ret;								      \
 })


 #define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write, buf, count, pos)  \
 ({									       \
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled(CGROUP_SYSCTL))			       \
 		__ret = __cgroup_bpf_run_filter_sysctl(head, table, write,     \
 						       buf, count, pos,        \
 						       CGROUP_SYSCTL);     \
 	__ret;								       \
 })

 #define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen,   \
 				       kernel_optval)			       \
 ({									       \
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled(CGROUP_SETSOCKOPT))			       \
 		__ret = __cgroup_bpf_run_filter_setsockopt(sock, level,	       \
 							   optname, optval,    \
 							   optlen,	       \
 							   kernel_optval);     \
 	__ret;								       \
 })

 #define BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen)			       \
 ({									       \
 	int __ret = 0;							       \
 	if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT))			       \
 		get_user(__ret, optlen);				       \
 	__ret;								       \
 })

 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, optlen,   \
 				       max_optlen, retval)		       \
 ({									       \
 	int __ret = retval;						       \
 	if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT))			       \
 		if (!(sock)->sk_prot->bpf_bypass_getsockopt ||		       \
 		    !INDIRECT_CALL_INET_1((sock)->sk_prot->bpf_bypass_getsockopt, \
 					tcp_bpf_bypass_getsockopt,	       \
 					level, optname))		       \
 			__ret = __cgroup_bpf_run_filter_getsockopt(	       \
 				sock, level, optname, optval, optlen,	       \
 				max_optlen, retval);			       \
 	__ret;								       \
 })

 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval,      \
 					    optlen, retval)		       \
 ({									       \
 	int __ret = retval;						       \
 	if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT))			       \
 		__ret = __cgroup_bpf_run_filter_getsockopt_kern(	       \
 			sock, level, optname, optval, optlen, retval);	       \
 	__ret;								       \
 })

 int cgroup_bpf_prog_attach(const union bpf_attr *attr,
 			   enum bpf_prog_type ptype, struct bpf_prog *prog);
 int cgroup_bpf_prog_detach(const union bpf_attr *attr,
 			   enum bpf_prog_type ptype);
 int cgroup_bpf_link_attach(const union bpf_attr *attr, struct bpf_prog *prog);
 int cgroup_bpf_prog_query(const union bpf_attr *attr,
 			  union bpf_attr __user *uattr);
 #else

 struct cgroup_bpf {};
 static inline int cgroup_bpf_inherit(struct cgroup *cgrp) { return 0; }
 static inline void cgroup_bpf_offline(struct cgroup *cgrp) {}

 static inline int cgroup_bpf_prog_attach(const union bpf_attr *attr,
 					 enum bpf_prog_type ptype,
 					 struct bpf_prog *prog)
 {
 	return -EINVAL;
 }

 static inline int cgroup_bpf_prog_detach(const union bpf_attr *attr,
 					 enum bpf_prog_type ptype)
 {
 	return -EINVAL;
 }

 static inline int cgroup_bpf_link_attach(const union bpf_attr *attr,
 					 struct bpf_prog *prog)
 {
 	return -EINVAL;
 }

 static inline int cgroup_bpf_prog_query(const union bpf_attr *attr,
 					union bpf_attr __user *uattr)
 {
 	return -EINVAL;
 }

 static inline int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux,
 					    struct bpf_map *map) { return 0; }
 static inline struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(
 	struct bpf_prog *prog, enum bpf_cgroup_storage_type stype) { return NULL; }
 static inline void bpf_cgroup_storage_free(
 	struct bpf_cgroup_storage *storage) {}
 static inline int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key,
 						 void *value) {
 	return 0;
 }
 static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map,
 					void *key, void *value, u64 flags) {
 	return 0;
 }

 #define cgroup_bpf_enabled(atype) (0)
 #define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, atype, t_ctx) ({ 0; })
 #define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, atype) ({ 0; })
 #define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) (0)
 #define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, atype, flags) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(atype, major, minor, access) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,pos) ({ 0; })
 #define BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen) ({ 0; })
 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, \
 				       optlen, max_optlen, retval) ({ retval; })
 #define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \
 					    optlen, retval) ({ retval; })
 #define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \
 				       kernel_optval) ({ 0; })

 #define for_each_cgroup_storage_type(stype) for (; false; )

 #endif /* CONFIG_CGROUP_BPF */

 #endif /* _BPF_CGROUP_H */
	/* SPDX-License-Identifier: GPL-2.0 */
	#ifndef _BPF_CGROUP_H
	#define _BPF_CGROUP_H

	#include <linux/bpf.h>
	#include <linux/errno.h>
	#include <linux/jump_label.h>
	#include <linux/percpu.h>
	#include <linux/percpu-refcount.h>
	#include <linux/rbtree.h>
	#include <uapi/linux/bpf.h>

	struct sock;
	struct sockaddr;
	struct cgroup;
	struct sk_buff;
	struct bpf_map;
	struct bpf_prog;
	struct bpf_sock_ops_kern;
	struct bpf_cgroup_storage;
	struct ctl_table;
	struct ctl_table_header;
	struct task_struct;

	#ifdef CONFIG_CGROUP_BPF
	enum cgroup_bpf_attach_type {
	CGROUP_BPF_ATTACH_TYPE_INVALID = -1,
	CGROUP_INET_INGRESS = 0,
	CGROUP_INET_EGRESS,
	CGROUP_INET_SOCK_CREATE,
	CGROUP_SOCK_OPS,
	CGROUP_DEVICE,
	CGROUP_INET4_BIND,
	CGROUP_INET6_BIND,
	CGROUP_INET4_CONNECT,
	CGROUP_INET6_CONNECT,
	CGROUP_INET4_POST_BIND,
	CGROUP_INET6_POST_BIND,
	CGROUP_UDP4_SENDMSG,
	CGROUP_UDP6_SENDMSG,
	CGROUP_SYSCTL,
	CGROUP_UDP4_RECVMSG,
	CGROUP_UDP6_RECVMSG,
	CGROUP_GETSOCKOPT,
	CGROUP_SETSOCKOPT,
	CGROUP_INET4_GETPEERNAME,
	CGROUP_INET6_GETPEERNAME,
	CGROUP_INET4_GETSOCKNAME,
	CGROUP_INET6_GETSOCKNAME,
	CGROUP_INET_SOCK_RELEASE,
	MAX_CGROUP_BPF_ATTACH_TYPE
	};

	#define CGROUP_ATYPE(type) \
	case BPF_##type: return type

	static inline enum cgroup_bpf_attach_type
	to_cgroup_bpf_attach_type(enum bpf_attach_type attach_type)
	{
	switch (attach_type) {
	CGROUP_ATYPE(CGROUP_INET_INGRESS);
	CGROUP_ATYPE(CGROUP_INET_EGRESS);
	CGROUP_ATYPE(CGROUP_INET_SOCK_CREATE);
	CGROUP_ATYPE(CGROUP_SOCK_OPS);
	CGROUP_ATYPE(CGROUP_DEVICE);
	CGROUP_ATYPE(CGROUP_INET4_BIND);
	CGROUP_ATYPE(CGROUP_INET6_BIND);
	CGROUP_ATYPE(CGROUP_INET4_CONNECT);
	CGROUP_ATYPE(CGROUP_INET6_CONNECT);
	CGROUP_ATYPE(CGROUP_INET4_POST_BIND);
	CGROUP_ATYPE(CGROUP_INET6_POST_BIND);
	CGROUP_ATYPE(CGROUP_UDP4_SENDMSG);
	CGROUP_ATYPE(CGROUP_UDP6_SENDMSG);
	CGROUP_ATYPE(CGROUP_SYSCTL);
	CGROUP_ATYPE(CGROUP_UDP4_RECVMSG);
	CGROUP_ATYPE(CGROUP_UDP6_RECVMSG);
	CGROUP_ATYPE(CGROUP_GETSOCKOPT);
	CGROUP_ATYPE(CGROUP_SETSOCKOPT);
	CGROUP_ATYPE(CGROUP_INET4_GETPEERNAME);
	CGROUP_ATYPE(CGROUP_INET6_GETPEERNAME);
	CGROUP_ATYPE(CGROUP_INET4_GETSOCKNAME);
	CGROUP_ATYPE(CGROUP_INET6_GETSOCKNAME);
	CGROUP_ATYPE(CGROUP_INET_SOCK_RELEASE);
	default:
	return CGROUP_BPF_ATTACH_TYPE_INVALID;
	}
	}

	#undef CGROUP_ATYPE

	extern struct static_key_false cgroup_bpf_enabled_key[MAX_CGROUP_BPF_ATTACH_TYPE];
	#define cgroup_bpf_enabled(atype) static_branch_unlikely(&cgroup_bpf_enabled_key[atype])

	#define for_each_cgroup_storage_type(stype) \
	for (stype = 0; stype < MAX_BPF_CGROUP_STORAGE_TYPE; stype++)

	struct bpf_cgroup_storage_map;

	struct bpf_storage_buffer {
	struct rcu_head rcu;
	char data[];
	};

	struct bpf_cgroup_storage {
	union {
	struct bpf_storage_buffer *buf;
	void __percpu *percpu_buf;
	};
	struct bpf_cgroup_storage_map *map;
	struct bpf_cgroup_storage_key key;
	struct list_head list_map;
	struct list_head list_cg;
	struct rb_node node;
	struct rcu_head rcu;
	};

	struct bpf_cgroup_link {
	struct bpf_link link;
	struct cgroup *cgroup;
	enum bpf_attach_type type;
	};

	struct bpf_prog_list {
	struct list_head node;
	struct bpf_prog *prog;
	struct bpf_cgroup_link *link;
	struct bpf_cgroup_storage *storage[MAX_BPF_CGROUP_STORAGE_TYPE];
	};

	struct bpf_prog_array;

	struct cgroup_bpf {
	/* array of effective progs in this cgroup */
	struct bpf_prog_array __rcu *effective[MAX_CGROUP_BPF_ATTACH_TYPE];

	/* attached progs to this cgroup and attach flags
	* when flags == 0 or BPF_F_ALLOW_OVERRIDE the progs list will
	* have either zero or one element
	* when BPF_F_ALLOW_MULTI the list can have up to BPF_CGROUP_MAX_PROGS
	*/
	struct list_head progs[MAX_CGROUP_BPF_ATTACH_TYPE];
	u32 flags[MAX_CGROUP_BPF_ATTACH_TYPE];

	/* list of cgroup shared storages */
	struct list_head storages;

	/* temp storage for effective prog array used by prog_attach/detach */
	struct bpf_prog_array *inactive;

	/* reference counter used to detach bpf programs after cgroup removal */
	struct percpu_ref refcnt;

	/* cgroup_bpf is released using a work queue */
	struct work_struct release_work;
	};

	int cgroup_bpf_inherit(struct cgroup *cgrp);
	void cgroup_bpf_offline(struct cgroup *cgrp);

	int __cgroup_bpf_run_filter_skb(struct sock *sk,
	struct sk_buff *skb,
	enum cgroup_bpf_attach_type atype);

	int __cgroup_bpf_run_filter_sk(struct sock *sk,
	enum cgroup_bpf_attach_type atype);

	int __cgroup_bpf_run_filter_sock_addr(struct sock *sk,
	struct sockaddr *uaddr,
	enum cgroup_bpf_attach_type atype,
	void *t_ctx,
	u32 *flags);

	int __cgroup_bpf_run_filter_sock_ops(struct sock *sk,
	struct bpf_sock_ops_kern *sock_ops,
	enum cgroup_bpf_attach_type atype);

	int __cgroup_bpf_check_dev_permission(short dev_type, u32 major, u32 minor,
	short access, enum cgroup_bpf_attach_type atype);

	int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
	struct ctl_table *table, int write,
	char *buf, size_t pcount, loff_t *ppos,
	enum cgroup_bpf_attach_type atype);

	int __cgroup_bpf_run_filter_setsockopt(struct sock sock, int level,
	int optname, char __user optval,
	int optlen, char *kernel_optval);
	int __cgroup_bpf_run_filter_getsockopt(struct sock *sk, int level,
	int optname, char __user *optval,
	int __user *optlen, int max_optlen,
	int retval);

	int __cgroup_bpf_run_filter_getsockopt_kern(struct sock *sk, int level,
	int optname, void *optval,
	int *optlen, int retval);

	static inline enum bpf_cgroup_storage_type cgroup_storage_type(
	struct bpf_map *map)
	{
	if (map->map_type == BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE)
	return BPF_CGROUP_STORAGE_PERCPU;

	return BPF_CGROUP_STORAGE_SHARED;
	}

	struct bpf_cgroup_storage *
	cgroup_storage_lookup(struct bpf_cgroup_storage_map *map,
	void *key, bool locked);
	struct bpf_cgroup_storage bpf_cgroup_storage_alloc(struct bpf_prog prog,
	enum bpf_cgroup_storage_type stype);
	void bpf_cgroup_storage_free(struct bpf_cgroup_storage *storage);
	void bpf_cgroup_storage_link(struct bpf_cgroup_storage *storage,
	struct cgroup *cgroup,
	enum bpf_attach_type type);
	void bpf_cgroup_storage_unlink(struct bpf_cgroup_storage *storage);
	int bpf_cgroup_storage_assign(struct bpf_prog_aux aux, struct bpf_map map);

	int bpf_percpu_cgroup_storage_copy(struct bpf_map map, void key, void *value);
	int bpf_percpu_cgroup_storage_update(struct bpf_map map, void key,
	void *value, u64 flags);

	/* Wrappers for __cgroup_bpf_run_filter_skb() guarded by cgroup_bpf_enabled. */
	#define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk, skb) \
	({ \
	int __ret = 0; \
	if (cgroup_bpf_enabled(CGROUP_INET_INGRESS)) \
	__ret = __cgroup_bpf_run_filter_skb(sk, skb, \
	CGROUP_INET_INGRESS); \
	\
	__ret; \
	})

	#define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk, skb) \
	({ \
	int __ret = 0; \
	if (cgroup_bpf_enabled(CGROUP_INET_EGRESS) && sk && sk == skb->sk) { \
	typeof(sk) __sk = sk_to_full_sk(sk); \
	if (sk_fullsock(__sk)) \
	__ret = __cgroup_bpf_run_filter_skb(__sk, skb, \
	CGROUP_INET_EGRESS); \
	} \
	__ret; \
	})

	#define BPF_CGROUP_RUN_SK_PROG(sk, atype) \
	({ \
	int __ret = 0; \
	if (cgroup_bpf_enabled(atype)) { \
	__ret = __cgroup_bpf_run_filter_sk(sk, atype); \
	} \
	__ret; \
	})

	#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) \
	BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET_SOCK_CREATE)

	#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) \
	BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET_SOCK_RELEASE)

	#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) \
	BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET4_POST_BIND)

	#define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) \
	BPF_CGROUP_RUN_SK_PROG(sk, CGROUP_INET6_POST_BIND)

	#define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, atype) \
	({ \
	u32 __unused_flags; \
	int __ret = 0; \
	if (cgroup_bpf_enabled(atype)) \
	__ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, atype, \
	NULL, \
	&__unused_flags); \
	__ret; \
	})

	#define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, atype, t_ctx) \
	({ \
	u32 __unused_flags; \
	int __ret = 0; \
	if (cgroup_bpf_enabled(atype)) { \
	lock_sock(sk); \
	__ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, atype, \
	t_ctx, \
	&__unused_flags); \
	release_sock(sk); \
	} \
	__ret; \
	})

	/* BPF_CGROUP_INET4_BIND and BPF_CGROUP_INET6_BIND can return extra flags
	* via upper bits of return code. The only flag that is supported
	* (at bit position 0) is to indicate CAP_NET_BIND_SERVICE capability check
	* should be bypassed (BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE).
	*/
	#define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, atype, bind_flags) \
	({ \
	u32 __flags = 0; \
	int __ret = 0; \
	if (cgroup_bpf_enabled(atype)) { \
	lock_sock(sk); \
	__ret = __cgroup_bpf_run_filter_sock_addr(sk, uaddr, atype, \
	NULL, &__flags); \
	release_sock(sk); \
	if (__flags & BPF_RET_BIND_NO_CAP_NET_BIND_SERVICE) \
	*bind_flags \|= BIND_NO_CAP_NET_BIND_SERVICE; \
	} \
	__ret; \
	})

	#define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) \
	((cgroup_bpf_enabled(CGROUP_INET4_CONNECT) \|\| \
	cgroup_bpf_enabled(CGROUP_INET6_CONNECT)) && \
	(sk)->sk_prot->pre_connect)

	#define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr) \
	BPF_CGROUP_RUN_SA_PROG(sk, uaddr, CGROUP_INET4_CONNECT)

	#define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr) \
	BPF_CGROUP_RUN_SA_PROG(sk, uaddr, CGROUP_INET6_CONNECT)

	#define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr) \
	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_INET4_CONNECT, NULL)

	#define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr) \
	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_INET6_CONNECT, NULL)

	#define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, t_ctx) \
	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_UDP4_SENDMSG, t_ctx)

	#define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) \
	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_UDP6_SENDMSG, t_ctx)

	#define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr) \
	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_UDP4_RECVMSG, NULL)

	#define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr) \
	BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, CGROUP_UDP6_RECVMSG, NULL)

	/* The SOCK_OPS"_SK" macro should be used when sock_ops->sk is not a
	* fullsock and its parent fullsock cannot be traced by
	* sk_to_full_sk().
	*
	* e.g. sock_ops->sk is a request_sock and it is under syncookie mode.
	* Its listener-sk is not attached to the rsk_listener.
	* In this case, the caller holds the listener-sk (unlocked),
	* set its sock_ops->sk to req_sk, and call this SOCK_OPS"_SK" with
	* the listener-sk such that the cgroup-bpf-progs of the
	* listener-sk will be run.
	*
	* Regardless of syncookie mode or not,
	* calling bpf_setsockopt on listener-sk will not make sense anyway,
	* so passing 'sock_ops->sk == req_sk' to the bpf prog is appropriate here.
	*/
	#define BPF_CGROUP_RUN_PROG_SOCK_OPS_SK(sock_ops, sk) \
	({ \
	int __ret = 0; \
	if (cgroup_bpf_enabled(CGROUP_SOCK_OPS)) \
	__ret = __cgroup_bpf_run_filter_sock_ops(sk, \
	sock_ops, \
	CGROUP_SOCK_OPS); \
	__ret; \
	})

	#define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) \
	({ \
	int __ret = 0; \
	if (cgroup_bpf_enabled(CGROUP_SOCK_OPS) && (sock_ops)->sk) { \
	typeof(sk) __sk = sk_to_full_sk((sock_ops)->sk); \
	if (__sk && sk_fullsock(__sk)) \
	__ret = __cgroup_bpf_run_filter_sock_ops(__sk, \
	sock_ops, \
	CGROUP_SOCK_OPS); \
	} \
	__ret; \
	})

	#define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(atype, major, minor, access) \
	({ \
	int __ret = 0; \
	if (cgroup_bpf_enabled(CGROUP_DEVICE)) \
	__ret = __cgroup_bpf_check_dev_permission(atype, major, minor, \
	access, \
	CGROUP_DEVICE); \
	\
	__ret; \
	})


	#define BPF_CGROUP_RUN_PROG_SYSCTL(head, table, write, buf, count, pos) \
	({ \
	int __ret = 0; \
	if (cgroup_bpf_enabled(CGROUP_SYSCTL)) \
	__ret = __cgroup_bpf_run_filter_sysctl(head, table, write, \
	buf, count, pos, \
	CGROUP_SYSCTL); \
	__ret; \
	})

	#define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \
	kernel_optval) \
	({ \
	int __ret = 0; \
	if (cgroup_bpf_enabled(CGROUP_SETSOCKOPT)) \
	__ret = __cgroup_bpf_run_filter_setsockopt(sock, level, \
	optname, optval, \
	optlen, \
	kernel_optval); \
	__ret; \
	})

	#define BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen) \
	({ \
	int __ret = 0; \
	if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT)) \
	get_user(__ret, optlen); \
	__ret; \
	})

	#define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, optlen, \
	max_optlen, retval) \
	({ \
	int __ret = retval; \
	if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT)) \
	if (!(sock)->sk_prot->bpf_bypass_getsockopt \|\| \
	!INDIRECT_CALL_INET_1((sock)->sk_prot->bpf_bypass_getsockopt, \
	tcp_bpf_bypass_getsockopt, \
	level, optname)) \
	__ret = __cgroup_bpf_run_filter_getsockopt( \
	sock, level, optname, optval, optlen, \
	max_optlen, retval); \
	__ret; \
	})

	#define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \
	optlen, retval) \
	({ \
	int __ret = retval; \
	if (cgroup_bpf_enabled(CGROUP_GETSOCKOPT)) \
	__ret = __cgroup_bpf_run_filter_getsockopt_kern( \
	sock, level, optname, optval, optlen, retval); \
	__ret; \
	})

	int cgroup_bpf_prog_attach(const union bpf_attr *attr,
	enum bpf_prog_type ptype, struct bpf_prog *prog);
	int cgroup_bpf_prog_detach(const union bpf_attr *attr,
	enum bpf_prog_type ptype);
	int cgroup_bpf_link_attach(const union bpf_attr attr, struct bpf_prog prog);
	int cgroup_bpf_prog_query(const union bpf_attr *attr,
	union bpf_attr __user *uattr);
	#else

	struct cgroup_bpf {};
	static inline int cgroup_bpf_inherit(struct cgroup *cgrp) { return 0; }
	static inline void cgroup_bpf_offline(struct cgroup *cgrp) {}

	static inline int cgroup_bpf_prog_attach(const union bpf_attr *attr,
	enum bpf_prog_type ptype,
	struct bpf_prog *prog)
	{
	return -EINVAL;
	}

	static inline int cgroup_bpf_prog_detach(const union bpf_attr *attr,
	enum bpf_prog_type ptype)
	{
	return -EINVAL;
	}

	static inline int cgroup_bpf_link_attach(const union bpf_attr *attr,
	struct bpf_prog *prog)
	{
	return -EINVAL;
	}

	static inline int cgroup_bpf_prog_query(const union bpf_attr *attr,
	union bpf_attr __user *uattr)
	{
	return -EINVAL;
	}

	static inline int bpf_cgroup_storage_assign(struct bpf_prog_aux *aux,
	struct bpf_map *map) { return 0; }
	static inline struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(
	struct bpf_prog *prog, enum bpf_cgroup_storage_type stype) { return NULL; }
	static inline void bpf_cgroup_storage_free(
	struct bpf_cgroup_storage *storage) {}
	static inline int bpf_percpu_cgroup_storage_copy(struct bpf_map map, void key,
	void *value) {
	return 0;
	}
	static inline int bpf_percpu_cgroup_storage_update(struct bpf_map *map,
	void key, void value, u64 flags) {
	return 0;
	}

	#define cgroup_bpf_enabled(atype) (0)
	#define BPF_CGROUP_RUN_SA_PROG_LOCK(sk, uaddr, atype, t_ctx) ({ 0; })
	#define BPF_CGROUP_RUN_SA_PROG(sk, uaddr, atype) ({ 0; })
	#define BPF_CGROUP_PRE_CONNECT_ENABLED(sk) (0)
	#define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET_BIND_LOCK(sk, uaddr, atype, flags) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET6_POST_BIND(sk) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET4_CONNECT(sk, uaddr) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET6_CONNECT(sk, uaddr) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_INET6_CONNECT_LOCK(sk, uaddr) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_UDP4_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_UDP6_SENDMSG_LOCK(sk, uaddr, t_ctx) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_UDP4_RECVMSG_LOCK(sk, uaddr) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_UDP6_RECVMSG_LOCK(sk, uaddr) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_SOCK_OPS(sock_ops) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_DEVICE_CGROUP(atype, major, minor, access) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_SYSCTL(head,table,write,buf,count,pos) ({ 0; })
	#define BPF_CGROUP_GETSOCKOPT_MAX_OPTLEN(optlen) ({ 0; })
	#define BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock, level, optname, optval, \
	optlen, max_optlen, retval) ({ retval; })
	#define BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sock, level, optname, optval, \
	optlen, retval) ({ retval; })
	#define BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock, level, optname, optval, optlen, \
	kernel_optval) ({ 0; })

	#define for_each_cgroup_storage_type(stype) for (; false; )

	#endif /* CONFIG_CGROUP_BPF */

	#endif /* _BPF_CGROUP_H */