README
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bpf-map
Archived: This tool has been superseded by bpftool.
A small tool to generically introspect BPF maps without requiring to be aware of the specific data structures stored inside. Can print the metadata of the map or its contents in hexadecimal form.
Install
Install from source via go get:
go get github.com/cilium/bpf-map
Download the binary release:
curl -SsL https://github.com/cilium/bpf-map/releases/download/v1.0/bpf-map -o bpf-map
chmod +x bpf-map
Usage
$ bpf-map dump /sys/fs/bpf/tc/globals/path/map
Example
$ sudo bpf-map info /sys/fs/bpf/tc/globals/cilium_lxc
Type: Hash
Key size: 4
Value size: 104
Max entries: 1024
Flags: 0x0
$ sudo bpf-map dump /sys/fs/bpf/tc/globals/cilium_lxc
Key:
00000000 e8 f7 01 00 |....|
Value:
00000000 11 00 00 00 01 02 ca 74 0e c4 d8 25 33 18 00 00 |.......t...%3...|
00000010 1a 19 4b e1 ed 4b 00 00 f0 0d 00 00 00 00 00 00 |..K..K..........|
00000020 c0 a8 21 0b 00 00 74 ca 00 00 00 00 00 00 00 00 |..!...t.........|
00000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000060 00 00 00 00 00 00 00 00 |........|
Key:
00000000 ee 1c 01 00 |....|
Value:
00000000 0f 00 00 00 01 01 d6 8a 4e 9b 9d a5 57 d5 00 00 |........N...W...|
00000010 ba 58 00 80 b9 c1 00 00 f0 0d 00 00 00 00 00 00 |.X..............|
00000020 c0 a8 21 0b 00 00 8a d6 00 00 00 00 00 00 00 00 |..!.............|
00000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000060 00 00 00 00 00 00 00 00 |........|
[...]
Documentation
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Overview ¶
Copyright 2016 Authors of Cilium
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Source Files