ee103e9f15
Lets test using probe* in SCHED_CLS network programs as well just to be sure these keep working. Its cheap to add the extra test and provides a second context to test outside of sk_msg after we generalized probe* helpers to all networking types. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/159033911685.12355.15951980509828906214.stgit@john-Precision-5820-Tower Signed-off-by: Alexei Starovoitov <ast@kernel.org>
29 lines
668 B
C
29 lines
668 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include "vmlinux.h"
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_endian.h>
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#define TEST_COMM_LEN 16
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struct {
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__uint(type, BPF_MAP_TYPE_CGROUP_ARRAY);
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__uint(max_entries, 1);
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__type(key, u32);
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__type(value, u32);
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} cgroup_map SEC(".maps");
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char _license[] SEC("license") = "GPL";
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SEC("classifier/test_skb_helpers")
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int test_skb_helpers(struct __sk_buff *skb)
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{
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struct task_struct *task;
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char comm[TEST_COMM_LEN];
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__u32 tpid;
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task = (struct task_struct *)bpf_get_current_task();
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bpf_probe_read_kernel(&tpid , sizeof(tpid), &task->tgid);
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bpf_probe_read_kernel_str(&comm, sizeof(comm), &task->comm);
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return 0;
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}
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