Date: Sun, 02 Nov 2014 14:59:30 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 194758] New: Need an API to obtain original destination port of locally forwarded UDP packet Message-ID: <bug-194758-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194758 Bug ID: 194758 Summary: Need an API to obtain original destination port of locally forwarded UDP packet Product: Base System Version: 10.0-RELEASE Hardware: Any OS: Any Status: Needs Triage Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: hoomanfazaeli@gmail.com For UDP packets forwarded to a local daemon with a rule like below: ipfw add 10 fwd localhost,7000 udp from any to any in recv em1 The daemon may obtain the original destination address of forwarded packets using recvmsg(2) and IP_RECVDSTADDR socket option. However, there is no API to obtain the original destination _port_. One possible solution is to add a new socket option, say IP_RECVDSTSOADDR. If set on a datagram socket, ip_savecontorl/ip6_savecontrol_v4 would record the datagram's destination address and port as a 'sockaddr_in[6]' structure. -- You are receiving this mail because: You are the assignee for the bug.
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