Date: Sun, 17 Feb 2013 23:51:35 +0800 From: Ihsan Junaidi Ibrahim <ihsan@grep.my> To: freebsd-net@freebsd.org Subject: getifaddrs() gif tunnel src/dst address Message-ID: <B471D580-B1BE-48A1-9EA0-66C3615E018C@grep.my>
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Hi, I've been trying to obtain gif tunnel addresses via getifaddrs() but I've not been able to. The tunnel addresses can be inet/inet6 depending on the scenario. I can however get the inet/inet6 address of the interface. Is there a way to get them? Also looking at if_gif.c, I notice that there's the following ioctl flags: - SIOCGLIFPHYADDR - SIOCGIFPSRCADDR(_IN6)/SIOCGIFPDSTADDR(_IN6) - SIOCGIFPHYADDR/SIOCIFPHYADDR_IN6 that I can use to get the addresses however due to my limited knowledge, I can't seem to figure them out. I believe getifaddrs() invoke one of these flags to return the inet/inet6 address of the interface when the sa_family refers to AF_INET/AF_INET6. I've tried matching AF_LINK and managed to match sockaddr_dl.sdl_type with IFT_GIF but I'm not sure where the tunnel addresses are stored on that structure. I'm hoping for the collective wisdom to assist me here. Thanks.home | help
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