Commit eb7d8f1d authored by Kuniyuki Iwashima's avatar Kuniyuki Iwashima Committed by Alexei Starovoitov
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bpf: Support bpf_(get|set)sockopt() in bpf unix iter. 



This patch makes bpf_(get|set)sockopt() available when iterating AF_UNIX
sockets.

Signed-off-by: default avatarKuniyuki Iwashima <kuniyu@amazon.co.jp>
Link: https://lore.kernel.org/r/20220113002849.4384-4-kuniyu@amazon.co.jp


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 855d8e77

net/unix/af_unix.c

+15 −0
Original line number Diff line number Diff line
@@ -3633,6 +3633,20 @@ static const struct bpf_iter_seq_info unix_seq_info = { 
	.seq_priv_size		= sizeof(struct bpf_unix_iter_state),

};



static const struct bpf_func_proto *

bpf_iter_unix_get_func_proto(enum bpf_func_id func_id,

			     const struct bpf_prog *prog)

{

	switch (func_id) {

	case BPF_FUNC_setsockopt:

		return &bpf_sk_setsockopt_proto;

	case BPF_FUNC_getsockopt:

		return &bpf_sk_getsockopt_proto;

	default:

		return NULL;

	}

}



static struct bpf_iter_reg unix_reg_info = {

	.target			= "unix",

	.ctx_arg_info_size	= 1,
@@ -3640,6 +3654,7 @@ static struct bpf_iter_reg unix_reg_info = { 
		{ offsetof(struct bpf_iter__unix, unix_sk),

		  PTR_TO_BTF_ID_OR_NULL },

	},

	.get_func_proto         = bpf_iter_unix_get_func_proto,

	.seq_info		= &unix_seq_info,

};