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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
char _license[] SEC("license") = "GPL";
int my_pid;
bool reject_capable;
bool reject_cmd;
SEC("lsm/bpf_token_capable")
int BPF_PROG(token_capable, struct bpf_token *token, int cap)
{
if (my_pid == 0 || my_pid != (bpf_get_current_pid_tgid() >> 32))
return 0;
if (reject_capable)
return -1;
return 0;
}
SEC("lsm/bpf_token_cmd")
int BPF_PROG(token_cmd, struct bpf_token *token, enum bpf_cmd cmd)
{
if (my_pid == 0 || my_pid != (bpf_get_current_pid_tgid() >> 32))
return 0;
if (reject_cmd)
return -1;
return 0;
}
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