Date: Thu, 23 Oct 2003 09:08:55 -0700 From: Jerry Toung <jtoung@arc.nasa.gov> To: freebsd-hackers@freebsd.org Subject: pseudo-driver (*pr_input) Message-ID: <200310230908.55464.jtoung@arc.nasa.gov>
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Good morning hackers, I am writing a pseudo driver for a routing protocol that insert its heade= r=20 after the ip header. I call it TTT. On the output after ip_output, for=20 packets destined to a particular subnet I go through the ttt0 virtual=20 interface calling ttt_output. In ttt_input all I have is a printf statement to make sure that it is bei= ng=20 called. tcpdump on the physical interface shows those packets getting in = as a=20 result of a ping from 243.10.1.1, but I don't see in the /var/log/message= s=20 what should be printed by ttt_input. I use 2 machines connected back to b= ack=20 with a crossover cable. tcpdump: listening on fxp0 16:11:15.398205 243.10.1.1 > 243.10.1.2: ip-proto-110 91 16:11:16.408227 243.10.1.1 > 243.10.1.2: ip-proto-110 91 =2E........................................ in if_ttt.c I have this to support calls to ttt_input extern struct domain inetdomain; static const struct protosw in_ttt_protosw =3D { SOCK_RAW, &inetdomain, IPPROTO_TTT, PR_ATOMIC|PR_ADDR,=20 (pr_input_t*)ttt_input, (pr_output_t*)rip_output, rip_ctlinput,=20 rip_ctloutput, 0, 0, 0, 0, 0, &rip_usrreqs, }; and in=20 static int ttt_clone_create(struct if_clone *ifc, int unit)=20 { =2E........... sc->encap_cookie =3D encap_attach_func(AF_INET, IPPROTO_TTT, ttt_encapcheck, &in_ttt_protosw, sc); =2E........... } sorry for the long post, but if somebody can tell me what I am missing I'= ll=20 appreciate. thank you, Jerry.
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