diff options
Diffstat (limited to 'kernel/bpf/syscall.c')
| -rw-r--r-- | kernel/bpf/syscall.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 4caa18e6860a..5518a6839ab1 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -856,6 +856,7 @@ static int bpf_prog_attach(const union bpf_attr *attr) { struct bpf_prog *prog; struct cgroup *cgrp; + enum bpf_prog_type ptype; if (!capable(CAP_NET_ADMIN)) return -EPERM; @@ -866,25 +867,26 @@ static int bpf_prog_attach(const union bpf_attr *attr) switch (attr->attach_type) { case BPF_CGROUP_INET_INGRESS: case BPF_CGROUP_INET_EGRESS: - prog = bpf_prog_get_type(attr->attach_bpf_fd, - BPF_PROG_TYPE_CGROUP_SKB); - if (IS_ERR(prog)) - return PTR_ERR(prog); - - cgrp = cgroup_get_from_fd(attr->target_fd); - if (IS_ERR(cgrp)) { - bpf_prog_put(prog); - return PTR_ERR(cgrp); - } - - cgroup_bpf_update(cgrp, prog, attr->attach_type); - cgroup_put(cgrp); + ptype = BPF_PROG_TYPE_CGROUP_SKB; break; default: return -EINVAL; } + prog = bpf_prog_get_type(attr->attach_bpf_fd, ptype); + if (IS_ERR(prog)) + return PTR_ERR(prog); + + cgrp = cgroup_get_from_fd(attr->target_fd); + if (IS_ERR(cgrp)) { + bpf_prog_put(prog); + return PTR_ERR(cgrp); + } + + cgroup_bpf_update(cgrp, prog, attr->attach_type); + cgroup_put(cgrp); + return 0; } |