bc467e953e
This expands coverage for getsockname and getpeername hooks to include getsockname4, getsockname6, getpeername4, and getpeername6. Signed-off-by: Jordan Rife <jrife@google.com> Link: https://lore.kernel.org/r/20240510190246.3247730-17-jrife@google.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
24 lines
558 B
C
24 lines
558 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2024 Google LLC */
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#include "vmlinux.h"
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#include <string.h>
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_endian.h>
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#include <bpf/bpf_core_read.h>
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#include "bpf_kfuncs.h"
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#define REWRITE_ADDRESS_IP4 0xc0a801fe // 192.168.1.254
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#define REWRITE_ADDRESS_PORT4 4040
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SEC("cgroup/getsockname4")
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int getsockname_v4_prog(struct bpf_sock_addr *ctx)
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{
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ctx->user_ip4 = bpf_htonl(REWRITE_ADDRESS_IP4);
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ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT4);
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return 1;
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}
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char _license[] SEC("license") = "GPL";
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