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22 lines
410 B
C
22 lines
410 B
C
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// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
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/* Copyright (c) 2020 Facebook */
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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char LICENSE[] SEC("license") = "Dual BSD/GPL";
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int my_pid = 0;
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SEC("tp/syscalls/sys_enter_write")
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int handle_tp(void *ctx)
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{
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int pid = bpf_get_current_pid_tgid() >> 32;
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if (pid != my_pid)
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return 0;
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bpf_printk("BPF triggered from PID %d.\n", pid);
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return 0;
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}
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