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>
32 lines
832 B
C
32 lines
832 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_IP6_0 0xfaceb00c
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#define REWRITE_ADDRESS_IP6_1 0x12345678
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#define REWRITE_ADDRESS_IP6_2 0x00000000
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#define REWRITE_ADDRESS_IP6_3 0x0000abcd
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#define REWRITE_ADDRESS_PORT6 6060
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SEC("cgroup/getpeername6")
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int getpeername_v6_prog(struct bpf_sock_addr *ctx)
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{
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ctx->user_ip6[0] = bpf_htonl(REWRITE_ADDRESS_IP6_0);
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ctx->user_ip6[1] = bpf_htonl(REWRITE_ADDRESS_IP6_1);
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ctx->user_ip6[2] = bpf_htonl(REWRITE_ADDRESS_IP6_2);
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ctx->user_ip6[3] = bpf_htonl(REWRITE_ADDRESS_IP6_3);
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ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT6);
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return 1;
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}
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char _license[] SEC("license") = "GPL";
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