Re: [PATCH v4 bpf-next/net 2/5] bpf: Support bpf_setsockopt() for BPF_CGROUP_INET_SOCK_CREATE.
From: Martin KaFai Lau <martin.lau@linux.dev>
Date: 2025-09-02 19:11:05
Also in:
bpf
On 8/28/25 6:00 PM, Kuniyuki Iwashima wrote:
+BPF_CALL_5(bpf_unlocked_sock_setsockopt, struct sock *, sk, int, level,
+ int, optname, char *, optval, int, optlen)
+{
+ return __bpf_setsockopt(sk, level, optname, optval, optlen);
+}
+
+static const struct bpf_func_proto bpf_unlocked_sock_setsockopt_proto = {
nit. There is a bpf_unlocked_"sk"_{get,set}sockopt_proto which its .func is also
taking "struct sock *". This one is sock_create specific, how about renaming it
to bpf_sock_create_{get,set}sockopt_proto. The same for the its .func.
+ .func = bpf_unlocked_sock_setsockopt,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+ .arg1_type = ARG_PTR_TO_CTX,
+ .arg2_type = ARG_ANYTHING,
+ .arg3_type = ARG_ANYTHING,
+ .arg4_type = ARG_PTR_TO_MEM | MEM_RDONLY,
+ .arg5_type = ARG_CONST_SIZE,
+};
+
+BPF_CALL_5(bpf_unlocked_sock_getsockopt, struct sock *, sk, int, level,
+ int, optname, char *, optval, int, optlen)
+{
+ return __bpf_getsockopt(sk, level, optname, optval, optlen);
+}
+
+static const struct bpf_func_proto bpf_unlocked_sock_getsockopt_proto = {
+ .func = bpf_unlocked_sock_getsockopt,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+ .arg1_type = ARG_PTR_TO_CTX,
+ .arg2_type = ARG_ANYTHING,
+ .arg3_type = ARG_ANYTHING,
+ .arg4_type = ARG_PTR_TO_UNINIT_MEM,
+ .arg5_type = ARG_CONST_SIZE,
+};