41 lines
879 B
C
41 lines
879 B
C
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// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2020 Facebook */
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#include "bpf_iter.h"
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#include <bpf/bpf_helpers.h>
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char _license[] SEC("license") = "GPL";
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int count = 0;
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int tgid = 0;
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int last_tgid = 0;
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int unique_tgid_count = 0;
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SEC("iter/task_file")
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int dump_task_file(struct bpf_iter__task_file *ctx)
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{
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struct seq_file *seq = ctx->meta->seq;
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struct task_struct *task = ctx->task;
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struct file *file = ctx->file;
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__u32 fd = ctx->fd;
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if (task == (void *)0 || file == (void *)0)
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return 0;
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if (ctx->meta->seq_num == 0) {
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count = 0;
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BPF_SEQ_PRINTF(seq, " tgid gid fd file\n");
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}
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if (tgid == task->tgid && task->tgid != task->pid)
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count++;
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if (last_tgid != task->tgid) {
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last_tgid = task->tgid;
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unique_tgid_count++;
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}
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BPF_SEQ_PRINTF(seq, "%8d %8d %8d %lx\n", task->tgid, task->pid, fd,
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(long)file->f_op);
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return 0;
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}
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