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e626a13f6f
Drop bpf_iter.h header which uses vmlinux.h but re-defines a bunch of iterator structures and some of BPF constants for use in BPF iterator selftests. None of that is necessary when fresh vmlinux.h header is generated for vmlinux image that matches latest selftests. So drop ugly hacks and have a nice plain vmlinux.h usage everywhere. We could do the same with all the kfunc __ksym redefinitions, but that has dependency on very fresh pahole, so I'm not addressing that here. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20241029203919.1948941-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright Amazon.com Inc. or its affiliates. */
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#include <vmlinux.h>
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#include "bpf_tracing_net.h"
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#include <bpf/bpf_helpers.h>
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#include <limits.h>
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#define AUTOBIND_LEN 6
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char sun_path[AUTOBIND_LEN];
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#define NR_CASES 5
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int sndbuf_setsockopt[NR_CASES] = {-1, 0, 8192, INT_MAX / 2, INT_MAX};
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int sndbuf_getsockopt[NR_CASES] = {-1, -1, -1, -1, -1};
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int sndbuf_getsockopt_expected[NR_CASES];
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static inline int cmpname(struct unix_sock *unix_sk)
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{
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int i;
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for (i = 0; i < AUTOBIND_LEN; i++) {
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if (unix_sk->addr->name->sun_path[i] != sun_path[i])
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return -1;
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}
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return 0;
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}
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SEC("iter/unix")
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int change_sndbuf(struct bpf_iter__unix *ctx)
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{
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struct unix_sock *unix_sk = ctx->unix_sk;
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int i, err;
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if (!unix_sk || !unix_sk->addr)
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return 0;
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if (unix_sk->addr->name->sun_path[0])
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return 0;
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if (cmpname(unix_sk))
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return 0;
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for (i = 0; i < NR_CASES; i++) {
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err = bpf_setsockopt(unix_sk, SOL_SOCKET, SO_SNDBUF,
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&sndbuf_setsockopt[i],
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sizeof(sndbuf_setsockopt[i]));
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if (err)
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break;
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err = bpf_getsockopt(unix_sk, SOL_SOCKET, SO_SNDBUF,
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&sndbuf_getsockopt[i],
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sizeof(sndbuf_getsockopt[i]));
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if (err)
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break;
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}
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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