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
538 B
C
25 lines
538 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2023, SUSE. */
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#include "vmlinux.h"
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#include <bpf/bpf_tracing.h>
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#include "bpf_tracing_net.h"
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char _license[] SEC("license") = "GPL";
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int pid;
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SEC("fmod_ret/update_socket_protocol")
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int BPF_PROG(mptcpify, int family, int type, int protocol)
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{
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if (bpf_get_current_pid_tgid() >> 32 != pid)
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return protocol;
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if ((family == AF_INET || family == AF_INET6) &&
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type == SOCK_STREAM &&
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(!protocol || protocol == IPPROTO_TCP)) {
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return IPPROTO_MPTCP;
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}
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return protocol;
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}
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