tcpdump mailing list archives

Re: Request for DLT for Linux Kernel Messages


From: Michal Labedzki <michal.labedzki () tieto com>
Date: Mon, 30 Dec 2013 09:00:39 +0100

On 30 December 2013 00:20, Guy Harris <guy () alum mit edu> wrote:
...and the packet format is just a line containing text, so that the packet data is just N bytes of text (presumably 
without an NL at the end), with a bunch of comma-separated fields giving priority/sequence number/time stamp/text?  
Where are the fields documented?


Documentation is provided by Linux Kernel:
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/Documentation/ABI/testing/dev-kmsg?id=refs/tags/v3.12

priority/sequence number/time stamp/text?

And "text" can be dissected too, because there can be more then one
line, first line seems to be always "human readable text", next are
similar (the same) as "udev" events (SUBSYSTEM=*; DEVICE=*)
My idea is:
libpcap goal: capture kernel logs, it is important context info
Wireshark goal: filterable kernel logs, for example timestamp delta
0.4s and character device with major < 196.
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Pozdrawiam / Best regards
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Michał Łabędzki, Software Engineer
Tieto Corporation

Product Development Services

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