AW: [mpls-linux-general] where is mpls head inserted in packet?

[Georg K. <gk...@gi...>]

Hi roro,

> hi,all
>    I'm reading mpls-linux source code ,but can you tell me where(in 
> which function) is mpls head inserted in packet head ?
>    Thanks in advance.

Well, in function mpls_output2() all the output instructions are called 
in their configured order. There the packets are changed. (see the individual
output instructions configured in mpls_out_ops[] which is initialized in 
mpls_opcode.c). The final changes of the skb pointer are done in mpls_finish
...

Georg