Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
25 lines
558 B
C
25 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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