name : bpf-cgroup-defs.h /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _BPF_CGROUP_DEFS_H #define _BPF_CGROUP_DEFS_H #ifdef CONFIG_CGROUP_BPF #include <linux/list.h> #include <linux/percpu-refcount.h> #include <linux/workqueue.h> struct bpf_prog_array; #ifdef CONFIG_BPF_LSM /* Maximum number of concurrently attachable per-cgroup LSM hooks. */ #define CGROUP_LSM_NUM 10 #else #define CGROUP_LSM_NUM 0 #endif 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_UNIX_CONNECT, CGROUP_INET4_POST_BIND, CGROUP_INET6_POST_BIND, CGROUP_UDP4_SENDMSG, CGROUP_UDP6_SENDMSG, CGROUP_UNIX_SENDMSG, CGROUP_SYSCTL, CGROUP_UDP4_RECVMSG, CGROUP_UDP6_RECVMSG, CGROUP_UNIX_RECVMSG, CGROUP_GETSOCKOPT, CGROUP_SETSOCKOPT, CGROUP_INET4_GETPEERNAME, CGROUP_INET6_GETPEERNAME, CGROUP_UNIX_GETPEERNAME, CGROUP_INET4_GETSOCKNAME, CGROUP_INET6_GETSOCKNAME, CGROUP_UNIX_GETSOCKNAME, CGROUP_INET_SOCK_RELEASE, CGROUP_LSM_START, CGROUP_LSM_END = CGROUP_LSM_START + CGROUP_LSM_NUM - 1, MAX_CGROUP_BPF_ATTACH_TYPE }; 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 hlist_head progs[MAX_CGROUP_BPF_ATTACH_TYPE]; u8 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; }; #else /* CONFIG_CGROUP_BPF */ struct cgroup_bpf {}; #endif /* CONFIG_CGROUP_BPF */ #endif