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tools: bpftool: use more common tag format

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Program tag is usually displayed as string of bytes without
any separators (e.g. as "aa5520b1090cfeb6" vs MAC addr-like
format bpftool uses currently: "aa:55:20:b1:09:0c:fe:b6").
Make bptfool use the more common format both for displaying
the tag and selecting the program by tag.

This was pointed out in review but I misunderstood the comment.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2017-10-16 10:12:54 -07:00 committed by David S. Miller
parent 2af55f4607
commit 2dc7c1fef9
3 changed files with 3 additions and 4 deletions
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2
tools/bpf/bpftool/Documentation/bpftool-prog.rst
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@ -55,7 +55,7 @@ EXAMPLES
**# bpftool prog show**
::
10: xdp name some_prog tag 00:5a:3d:21:23:62:0c:8b
10: xdp name some_prog tag 005a3d2123620c8b
loaded_at Sep 29/20:11 uid 0
xlated 528B jited 370B memlock 4096B map_ids 10

3
tools/bpf/bpftool/main.h
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@ -53,8 +53,7 @@
#define NEXT_ARGP() ({ (*argc)--; (*argv)++; if (*argc < 0) usage(); })
#define BAD_ARG() ({ err("what is '%s'?\n", *argv); -1; })
#define BPF_TAG_FMT "%02hhx:%02hhx:%02hhx:%02hhx:" \
"%02hhx:%02hhx:%02hhx:%02hhx"
#define BPF_TAG_FMT "%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx"
#define HELP_SPEC_PROGRAM \
"PROG := { id PROG_ID | pinned FILE | tag PROG_TAG }"

2
tools/bpf/bpftool/prog.c
View File

@ -224,7 +224,7 @@ static int show_prog(int fd)
printf("name %s ", info.name);
printf("tag ");
print_hex(info.tag, BPF_TAG_SIZE, ":");
print_hex(info.tag, BPF_TAG_SIZE, "");
printf("\n");
if (info.load_time) {