Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\bpf\syscall.c Create Date:2022-07-28 12:53:28
Last Modify:2022-05-19 18:06:12 Copyright©Brick
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Name:bpf_prog_load_check_attach

Proto:static int bpf_prog_load_check_attach(enum bpf_prog_type prog_type, enum bpf_attach_type expected_attach_type, u32 btf_id, u32 prog_fd)

Type:int

Parameter:

TypeParameterName
enum bpf_prog_typeprog_type
enum bpf_attach_typeexpected_attach_type
u32btf_id
u32prog_fd
1644  Case prog_type == BPF_PROG_TYPE_TRACING
1645  If btf_id > Max # of type identifier Then Return -EINVAL
1647  Break
1648  Default
1649  If btf_id || prog_fd Then Return -EINVAL
1651  Break
1655  Case prog_type == BPF_PROG_TYPE_CGROUP_SOCK
1657  Case expected_attach_type == BPF_CGROUP_INET_SOCK_CREATE
1658  Case expected_attach_type == BPF_CGROUP_INET4_POST_BIND
1659  Case expected_attach_type == BPF_CGROUP_INET6_POST_BIND
1660  Return 0
1661  Default
1662  Return -EINVAL
1664  Case prog_type == BPF_PROG_TYPE_CGROUP_SOCK_ADDR
1666  Case expected_attach_type == BPF_CGROUP_INET4_BIND
1667  Case expected_attach_type == BPF_CGROUP_INET6_BIND
1668  Case expected_attach_type == BPF_CGROUP_INET4_CONNECT
1669  Case expected_attach_type == BPF_CGROUP_INET6_CONNECT
1670  Case expected_attach_type == BPF_CGROUP_UDP4_SENDMSG
1671  Case expected_attach_type == BPF_CGROUP_UDP6_SENDMSG
1672  Case expected_attach_type == BPF_CGROUP_UDP4_RECVMSG
1673  Case expected_attach_type == BPF_CGROUP_UDP6_RECVMSG
1674  Return 0
1675  Default
1676  Return -EINVAL
1678  Case prog_type == BPF_PROG_TYPE_CGROUP_SKB
1680  Case expected_attach_type == BPF_CGROUP_INET_INGRESS
1681  Case expected_attach_type == BPF_CGROUP_INET_EGRESS
1682  Return 0
1683  Default
1684  Return -EINVAL
1686  Case prog_type == BPF_PROG_TYPE_CGROUP_SOCKOPT
1688  Case expected_attach_type == BPF_CGROUP_SETSOCKOPT
1689  Case expected_attach_type == BPF_CGROUP_GETSOCKOPT
1690  Return 0
1691  Default
1692  Return -EINVAL
1694  Default
1695  Return 0
Caller
NameDescribe
bpf_prog_load