@@ -4159,8 +4159,8 @@ static const struct bpf_func_proto bpf_get_socket_uid_proto = {
.arg1_type = ARG_PTR_TO_CTX,
};
-BPF_CALL_5(bpf_sockopt_event_output, struct bpf_sock_ops_kern *, bpf_sock,
- struct bpf_map *, map, u64, flags, void *, data, u64, size)
+BPF_CALL_5(bpf_event_output_data, void *, ctx, struct bpf_map *, map, u64, flags,
+ void *, data, u64, size)
{
if (unlikely(flags & ~(BPF_F_INDEX_MASK)))
return -EINVAL;
@@ -4168,8 +4168,8 @@ BPF_CALL_5(bpf_sockopt_event_output, struct bpf_sock_ops_kern *, bpf_sock,
return bpf_event_output(map, flags, data, size, NULL, 0, NULL);
}
-static const struct bpf_func_proto bpf_sockopt_event_output_proto = {
- .func = bpf_sockopt_event_output,
+static const struct bpf_func_proto bpf_event_output_data_proto = {
+ .func = bpf_event_output_data,
.gpl_only = true,
.ret_type = RET_INTEGER,
.arg1_type = ARG_PTR_TO_CTX,
@@ -5968,6 +5968,8 @@ sock_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
return &bpf_get_local_storage_proto;
case BPF_FUNC_get_socket_cookie:
return &bpf_get_socket_cookie_sock_proto;
+ case BPF_FUNC_perf_event_output:
+ return &bpf_event_output_data_proto;
default:
return bpf_base_func_proto(func_id);
}
@@ -5994,6 +5996,8 @@ sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
return &bpf_get_socket_cookie_sock_addr_proto;
case BPF_FUNC_get_local_storage:
return &bpf_get_local_storage_proto;
+ case BPF_FUNC_perf_event_output:
+ return &bpf_event_output_data_proto;
#ifdef CONFIG_INET
case BPF_FUNC_sk_lookup_tcp:
return &bpf_sock_addr_sk_lookup_tcp_proto;
@@ -6236,7 +6240,7 @@ sock_ops_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
case BPF_FUNC_get_local_storage:
return &bpf_get_local_storage_proto;
case BPF_FUNC_perf_event_output:
- return &bpf_sockopt_event_output_proto;
+ return &bpf_event_output_data_proto;
case BPF_FUNC_sk_storage_get:
return &bpf_sk_storage_get_proto;
case BPF_FUNC_sk_storage_delete:
Currently, connect(), sendmsg(), recvmsg() and bind-related hooks are all lacking perf event rb output in order to push notifications or monitoring events up to user space. Back in commit a5a3a828cd00 ("bpf: add perf event notificaton support for sock_ops"), I've worked with Sowmini to enable them for sock_ops where the context part is not used (as opposed to skbs for example where the packet data can be appended). Make the bpf_sockopt_event_output() helper generic and enable it for mentioned hooks. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> --- net/core/filter.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)