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>
next in thread | raw e-mail | index | archive | help
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.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?B471D580-B1BE-48A1-9EA0-66C3615E018C>