| Summary: | ASTERISK-02040: bad checksum udp packets on linux | ||
| Reporter: | cherso (cherso) | Labels: | |
| Date Opened: | 2004-07-17 09:53:30 | Date Closed: | 2008-01-15 15:02:52.000-0600 |
| Priority: | Major | Regression? | No |
| Status: | Closed/Complete | Components: | Core/General |
| Versions: | Frequency of Occurrence | ||
| Related Issues: | |||
| Environment: | Attachments: | ||
| Description: | alot of bad checksum udp packet in sip reply and rtp packets on linux 2.6.7, slackware 9.1 with different nic cards sendto function is not working good and so packet are dropped by the router. My vigor 2600 always crash receiving bad udp packets so I changed the setsocketopt option adding no checksum. I will try to write ast_sendto function with SOCK_DGRAM and checksum calculation function rtp.c static int rtp_socket(void) { int s; int cksum_flag = 1; /* turn off UDP checksums */ long flags; s = socket(AF_INET, SOCK_DGRAM, 0); if (s > -1) { flags = fcntl(s, F_GETFL); fcntl(s, F_SETFL, flags | O_NONBLOCK); setsockopt(s, SOL_SOCKET, SO_NO_CHECK, &cksum_flag,sizeof(cksum_flag)); } return s; } | ||
| Comments: | By: cherso (cherso) 2004-07-17 09:59:08 well ast_sendto should be a SOCK_RAW function By: Mark Spencer (markster) 2004-07-17 15:40:07 That will require root priviledge. This seems to be a linux issue, not an asterisk issue, or am I missing something? By: Mark Spencer (markster) 2004-07-17 17:22:24 I added a "rtpchecksum" option to rtp.conf to enable you to disable them By: Digium Subversion (svnbot) 2008-01-15 15:02:52.000-0600 Repository: asterisk Revision: 3464 U trunk/configs/rtp.conf.sample U trunk/rtp.c ------------------------------------------------------------------------ r3464 | markster | 2008-01-15 15:02:51 -0600 (Tue, 15 Jan 2008) | 2 lines Add option to disable checksums on RTP UDP ports (bug ASTERISK-2040) ------------------------------------------------------------------------ http://svn.digium.com/view/asterisk?view=rev&revision=3464 | ||