1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _BPF_CGROUP_DEFS_H 3 #define _BPF_CGROUP_DEFS_H 4 5 #ifdef CONFIG_CGROUP_BPF 6 7 #include <linux/list.h> 8 #include <linux/percpu-refcount.h> 9 #include <linux/workqueue.h> 10 11 struct bpf_prog_array; 12 13 enum cgroup_bpf_attach_type { 14 CGROUP_BPF_ATTACH_TYPE_INVALID = -1, 15 CGROUP_INET_INGRESS = 0, 16 CGROUP_INET_EGRESS, 17 CGROUP_INET_SOCK_CREATE, 18 CGROUP_SOCK_OPS, 19 CGROUP_DEVICE, 20 CGROUP_INET4_BIND, 21 CGROUP_INET6_BIND, 22 CGROUP_INET4_CONNECT, 23 CGROUP_INET6_CONNECT, 24 CGROUP_INET4_POST_BIND, 25 CGROUP_INET6_POST_BIND, 26 CGROUP_UDP4_SENDMSG, 27 CGROUP_UDP6_SENDMSG, 28 CGROUP_SYSCTL, 29 CGROUP_UDP4_RECVMSG, 30 CGROUP_UDP6_RECVMSG, 31 CGROUP_GETSOCKOPT, 32 CGROUP_SETSOCKOPT, 33 CGROUP_INET4_GETPEERNAME, 34 CGROUP_INET6_GETPEERNAME, 35 CGROUP_INET4_GETSOCKNAME, 36 CGROUP_INET6_GETSOCKNAME, 37 CGROUP_INET_SOCK_RELEASE, 38 MAX_CGROUP_BPF_ATTACH_TYPE 39 }; 40 41 struct cgroup_bpf { 42 /* array of effective progs in this cgroup */ 43 struct bpf_prog_array __rcu *effective[MAX_CGROUP_BPF_ATTACH_TYPE]; 44 45 /* attached progs to this cgroup and attach flags 46 * when flags == 0 or BPF_F_ALLOW_OVERRIDE the progs list will 47 * have either zero or one element 48 * when BPF_F_ALLOW_MULTI the list can have up to BPF_CGROUP_MAX_PROGS 49 */ 50 struct list_head progs[MAX_CGROUP_BPF_ATTACH_TYPE]; 51 u32 flags[MAX_CGROUP_BPF_ATTACH_TYPE]; 52 53 /* list of cgroup shared storages */ 54 struct list_head storages; 55 56 /* temp storage for effective prog array used by prog_attach/detach */ 57 struct bpf_prog_array *inactive; 58 59 /* reference counter used to detach bpf programs after cgroup removal */ 60 struct percpu_ref refcnt; 61 62 /* cgroup_bpf is released using a work queue */ 63 struct work_struct release_work; 64 }; 65 66 #else /* CONFIG_CGROUP_BPF */ 67 struct cgroup_bpf {}; 68 #endif /* CONFIG_CGROUP_BPF */ 69 70 #endif 71