rtnetlink -- definition wanted

Mark Haney mhaney at ercbroadband.org
Tue Dec 30 13:36:25 UTC 2008

Detlef Lechner wrote:
> Hi,
> who can explain to me the sentence
> "NAME: rtnetlink - macros to manipulate rtnetlink messages" 
> from man 3 rtnetlink?
> And the sentence " Rtnetlink  allows the kernel’s routing tables to be
> read and altered." from man 7 rtnetlink?
> What is 'rtnetlink'?
> Regards,
> Detlef Lechner 

Are you asking for where rtnetlink comes from?  IIRC it's short for 
'routing network link(ing)'.  I recall a function in early kernel code 
that had a similar name that allowed the kernel to (as you say above) 
edit routing tables.

Although, I could be wrong.  It's been a while since I dug that deep 
into a kernel.

Frustra laborant quotquot se calculationibus fatigant pro inventione 
quadraturae circuli

Mark Haney
Sr. Systems Administrator
ERC Broadband
(828) 350-2415

Call (866) ERC-7110 for after hours support

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