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bpftool: Show also the name of type BPF_OBJ_LINK

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For example, /sys/fs/bpf/maps.debug is a BPF link. When you run `bpftool map show`
to show it:

Before:

  $ bpftool map show pinned /sys/fs/bpf/maps.debug
  Error: incorrect object type: unknown

After:

  $ bpftool map show pinned /sys/fs/bpf/maps.debug
  Error: incorrect object type: link

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20220629154832.56986-5-laoar.shao@gmail.com
This commit is contained in:
Yafang Shao 2022-06-29 15:48:32 +00:00 • committed by Daniel Borkmann
parent 39e940d4ab
commit 7a255ae772
1 changed files with 1 additions and 0 deletions
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1
tools/bpf/bpftool/common.c
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@ -316,6 +316,7 @@ const char *get_fd_type_name(enum bpf_obj_type type)
[BPF_OBJ_UNKNOWN] = "unknown", [BPF_OBJ_UNKNOWN] = "unknown",
[BPF_OBJ_PROG] = "prog", [BPF_OBJ_PROG] = "prog",
[BPF_OBJ_MAP] = "map", [BPF_OBJ_MAP] = "map",
[BPF_OBJ_LINK] = "link",
}; };
if (type < 0 || type >= ARRAY_SIZE(names) || !names[type]) if (type < 0 || type >= ARRAY_SIZE(names) || !names[type])