diff options
| author | Tom Goff <thomas.goff@boeing.com> | 2009-11-25 20:36:06 +0000 |
|---|---|---|
| committer | Denis Ovsienko <infrastation@yandex.ru> | 2011-11-21 18:23:58 +0400 |
| commit | 337cdd69d9d5b5ef842d1be2e67126fdc6840181 (patch) | |
| tree | 160131e7469a16c578885f1959f39e1a40c7062a /zebra/kernel_socket.c | |
| parent | d9ddd5731d31a7bc1f0a39b7e4b0944dec7a2bdc (diff) | |
zebra: set the interface link-layer socket address
* kernel_socket.c: (ifm_read) The reorganization from commit
6fe70d1b35c189cb1e488b2c26551ba7baac6148 removed setting the
interface link-layer socket address structure on routing socket
platforms. This restores saving the link-layer information because
it might be used elsewhere: rtm_write() when no gateway is given,
if_dump_vty() and rtadv_send_packet().
Diffstat (limited to 'zebra/kernel_socket.c')
| -rw-r--r-- | zebra/kernel_socket.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/zebra/kernel_socket.c b/zebra/kernel_socket.c index feeaf5d0..bd129dc2 100644 --- a/zebra/kernel_socket.c +++ b/zebra/kernel_socket.c @@ -319,6 +319,7 @@ int ifm_read (struct if_msghdr *ifm) { struct interface *ifp = NULL; + struct sockaddr_dl *sdl; char ifname[IFNAMSIZ]; short ifnlen = 0; caddr_t *cp; @@ -356,6 +357,7 @@ ifm_read (struct if_msghdr *ifm) RTA_ADDR_GET (NULL, RTA_GATEWAY, ifm->ifm_addrs, cp); RTA_ATTR_GET (NULL, RTA_NETMASK, ifm->ifm_addrs, cp); RTA_ADDR_GET (NULL, RTA_GENMASK, ifm->ifm_addrs, cp); + sdl = (struct sockaddr_dl *)cp; RTA_NAME_GET (ifname, RTA_IFP, ifm->ifm_addrs, cp, ifnlen); RTA_ADDR_GET (NULL, RTA_IFA, ifm->ifm_addrs, cp); RTA_ADDR_GET (NULL, RTA_AUTHOR, ifm->ifm_addrs, cp); @@ -454,6 +456,16 @@ ifm_read (struct if_msghdr *ifm) #endif /* __bsdi__ */ if_get_metric (ifp); + /* + * XXX sockaddr_dl contents can be larger than the structure + * definition, so the user of the stored structure must be + * careful not to read off the end. + * + * a nonzero ifnlen from RTA_NAME_GET() means sdl is valid + */ + if (ifnlen) + memcpy (&ifp->sdl, sdl, sizeof (struct sockaddr_dl)); + if_add_update (ifp); } else |