27 lines
547 B
C
27 lines
547 B
C
// SPDX-License-Identifier: GPL-2.0
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#include "vmlinux.h"
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#include <bpf/bpf_helpers.h>
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__u32 set_pid = 0;
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__u64 set_key = 0;
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__u64 set_value = 0;
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struct {
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__uint(type, BPF_MAP_TYPE_HASH);
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__uint(max_entries, 2);
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__type(key, __u64);
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__type(value, __u64);
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} hash_map SEC(".maps");
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SEC("tp/syscalls/sys_enter_getpgid")
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int bpf_lookup_and_delete_test(const void *ctx)
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{
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if (set_pid == bpf_get_current_pid_tgid() >> 32)
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bpf_map_update_elem(&hash_map, &set_key, &set_value, BPF_NOEXIST);
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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