Date: Thu, 16 Dec 2004 09:49:17 +0500 From: =?ISO-8859-1?B?xOzo8vDo6SDE4u7p7ejq7uI=?= <dvoinikov@kazna.ru> To: freebsd-net@freebsd.org Subject: Divert sockets no longer behave like connected (SS_ISCONNECTED is removed from so->so_state) Message-ID: <1716213283.20041216094917@kazna.ru>
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Hello, I'm having this application (VPN daemon) which uses divert sockets for sending stuff http://www.targeted.org/nest/ It worked fine under 5.3-RELEASE but broke after recent upgrade to FreeBSD 5.3-STABLE. An attempt to send() via divert socket now returns EDESTADDRREQ "Destination address required". Digging up the CVS revealed this: http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet/ip_divert.c Quote: > Revision 1.98.2.1 / (download) - annotate - [select for diffs], Tue Nov 23 15:30:02 2004 UTC (3 weeks ago) by glebius > Branch: RELENG_5 > - Since divert protocol is not connection oriented, remove SS_ISCONNECTED flag > from divert sockets. Also relevant is this message by Gleb Smirnoff: http://www.freebsd.org/cgi/getmsg.cgi?fetch=50544+0+/usr/local/www/db/text/2004/freebsd-net/20041121.freebsd-net Quote: > So, the real change suggested is to remove SS_ISCONNECTED from so->so_state. All > other changes are its logical consequences. > What was idea of that SS_ISCONNECTED flag always set? I can't find any problems we > can get by removing this code. Well, I'm having one - my application stopped working. Also, quote from man divert: > Packets are written as either incom- > ing or outgoing: if write(2) or send(2) is used to deliver the packet > ... skip ... > then the packet is treated as if it were outgoing My case exactly, but this no longer holds. What am I supposed to do now ? Modify my application ? Actually I already did that, by switching to sendto(), but just wanted to make sure this divert sockets semantics change is intented and not spontaneous. Sincerely, Dmitry Dvoinikov http://www.targeted.org/
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