* [9front] [patch] fix gre retunnel logic
@ 2023-01-05 20:28 Arne Meyer
2023-01-06 13:35 ` cinap_lenrek
2023-01-07 2:23 ` cinap_lenrek
0 siblings, 2 replies; 4+ messages in thread
From: Arne Meyer @ 2023-01-05 20:28 UTC (permalink / raw)
To: 9front
[-- Attachment #1: Type: text/plain, Size: 242 bytes --]
Hello,
the retunnel logic in the gre code is wrong. It gets applied to any protocol type that is not pptp but should only process encapsulated ip4 packets. With this patch I got my userspace ethernet over gre tunnel to work.
Greetings,
Arne
[-- Attachment #2: gre.patch --]
[-- Type: application/octet-stream, Size: 319 bytes --]
diff c10be29c773737c4159b613f4f6c3b5a90d732f6 uncommitted
--- a/sys/src/9/ip/gre.c
+++ b/sys/src/9/ip/gre.c
@@ -560,7 +560,7 @@
qlock(proto);
- if(eproto != 0x880B && BLEN(bp) - hdrlen >= sizeof(Ip4hdr)){
+ if(eproto == 0x0800 && BLEN(bp) - hdrlen >= sizeof(Ip4hdr)){
ip = (Ip4hdr *)(bp->rp + hdrlen);
/*
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [9front] [patch] fix gre retunnel logic 2023-01-05 20:28 [9front] [patch] fix gre retunnel logic Arne Meyer @ 2023-01-06 13:35 ` cinap_lenrek 2023-01-07 2:23 ` cinap_lenrek 1 sibling, 0 replies; 4+ messages in thread From: cinap_lenrek @ 2023-01-06 13:35 UTC (permalink / raw) To: 9front applied. -- cinap ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9front] [patch] fix gre retunnel logic 2023-01-05 20:28 [9front] [patch] fix gre retunnel logic Arne Meyer 2023-01-06 13:35 ` cinap_lenrek @ 2023-01-07 2:23 ` cinap_lenrek 2023-01-13 16:56 ` Arne Meyer 1 sibling, 1 reply; 4+ messages in thread From: cinap_lenrek @ 2023-01-07 2:23 UTC (permalink / raw) To: 9front by the way, arne. would you like to share your setup and program for ethernet over gre? are you using devbridge to terminate the ethernet payload? sounds like fun. -- cinap ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9front] [patch] fix gre retunnel logic 2023-01-07 2:23 ` cinap_lenrek @ 2023-01-13 16:56 ` Arne Meyer 0 siblings, 0 replies; 4+ messages in thread From: Arne Meyer @ 2023-01-13 16:56 UTC (permalink / raw) To: 9front Moin cinap, I gutted nusb/ether and replaced the usb stuff with gre code. with this i end up with an etherG* interface in /net. I tested it against OpenBSD and it works. I'm still working out some details (use /shr or /srv, multicast and ipv6). As soon as I'm ready I'll post something to the list. > cinap_lenrek@felloff.net hat am 07.01.2023 02:23 GMT geschrieben: > > > by the way, arne. > would you like to share your setup and program for ethernet over gre? > are you using devbridge to terminate the ethernet payload? > sounds like fun. > > -- > cinap ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-01-13 16:57 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-01-05 20:28 [9front] [patch] fix gre retunnel logic Arne Meyer 2023-01-06 13:35 ` cinap_lenrek 2023-01-07 2:23 ` cinap_lenrek 2023-01-13 16:56 ` Arne Meyer
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).