Bug 1648667 - Add magic for eBPF objects
Summary: Add magic for eBPF objects
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: file
Version: 28
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Kamil Dudka
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: 1652993
TreeView+ depends on / blocked
 
Reported: 2018-11-11 13:31 UTC by Matteo Croce
Modified: 2020-03-25 10:16 UTC (History)
3 users (show)

Fixed In Version: file-5.34-4.fc30 file-5.34-4.fc29 file-5.33-9.fc28
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1652993 (view as bug list)
Environment:
Last Closed: 2018-11-14 03:12:28 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)
example eBPF object file (1.02 KB, application/x-object)
2018-11-11 13:31 UTC, Matteo Croce 		no flags Details
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Description Matteo Croce 2018-11-11 13:31:23 UTC 
Created attachment 1504385 [details]
example eBPF object file

Description of problem:

The file utility recently gained support to detect ELF binaries containing eBPF bytecode.
Before this addition, file detects the binary as "unknown arch"

Version-Release number of selected component (if applicable):

file-5.34-3.fc29.x86_64

How reproducible:

100%

Steps to Reproduce:
1. Compile a C code as eBPF, like:
   clang -target bpf -c test.c -o test.o
2. run file on the binary

Actual results:

$ file test.o 
test.o: ELF 64-bit LSB relocatable, *unknown arch 0xf7* version 1 (SYSV), not stripped

Expected results:

$ file test.o
test.o: ELF 64-bit LSB relocatable, eBPF, version 1 (SYSV), not stripped


Additional info:

Upstream commit:

https://github.com/file/file/commit/4cf4e817457ce6ca32452a7c80b27e96be6441dc
Comment 1 Kamil Dudka 2018-11-11 16:12:57 UTC 
This should be easy to backport.  Thanks!
Comment 2 Kamil Dudka 2018-11-12 15:19:46 UTC 
downstream commits:

https://src.fedoraproject.org/cgit/rpms/file.git/commit/?id=554e8b4b
https://src.fedoraproject.org/cgit/rpms/file.git/commit/?id=0c6585f6
Comment 3 Fedora Update System 2018-11-12 15:40:26 UTC 
file-5.34-4.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2018-4222a53d59
Comment 4 Fedora Update System 2018-11-12 15:40:31 UTC 
file-5.33-9.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-c7f670fe4f
Comment 5 Fedora Update System 2018-11-13 04:07:16 UTC 
file-5.33-9.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-c7f670fe4f
Comment 6 Fedora Update System 2018-11-13 04:49:19 UTC 
file-5.34-4.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-4222a53d59
Comment 7 Fedora Update System 2018-11-14 03:12:28 UTC 
file-5.34-4.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.
Comment 8 Fedora Update System 2018-11-21 03:11:33 UTC 
file-5.33-9.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.
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