Date: Wed, 12 Nov 1997 15:05:50 -0500 From: Feiyi Wang <fwang2@eos.ncsu.edu> To: questions@FreeBSD.ORG Subject: divert socket problem Message-ID: <346A0C1E.687@eos.ncsu.edu>
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Hi, there I am playing with DIVERT socket. Basically, I want to divert a particular protocol stream to another port, and read it from my program. The firewall rules I am using is pretty simple. 89 is the protocol number. /sbin/ipfw -f flush /sbin/ipfw divert 50000 89 from any to any /sbin/ipfw pass all from any to any >From /sbin/ipfw show, I can see there ARE packets which match the rule 2 and diverted. But I can't read anything, recvfrom() blocks. Am I missing something here? Anybody can help me out? sockfd = socket(AF_INET,SOCK_RAW, IPPROTO_DIVERT) addr.sin_family = AF_INET addr.sin_addr.s_addr=INADDR_ANY addr.sin_port=50000 bind(sockfd, (struct sockaddr *)&addr, sizeof addr) readfrom(sockfd, ....) Thanks /Feiyi
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