[iovisor-dev] reminder: IO Visor TSC/Dev Meeting

2017-01-10 Thread Brenden Blanco via iovisor-dev
Happy New Year All! Please join us for our first bi-weekly call of the year. As usual, this meeting is open to everybody and completely optional. You might be interested to join if: You want to know what is going on in BPF land You are doing something interesting yourself with BPF and would like

Re: [iovisor-dev] How to update the csum of a trimmed UDP packet?

2017-01-10 Thread Daniel Borkmann via iovisor-dev
On 01/09/2017 04:48 PM, Mauricio Vasquez via iovisor-dev wrote: Hello, I am trying to implement an eBPF program that trims an UDP packet to a predefined length. I am able to trim the packet (using the bpf_change_tail helper) and also to update the ip->len and udp->length fields. After