diff options
Diffstat (limited to 'sys/net/if_ethersubr.c')
| -rw-r--r-- | sys/net/if_ethersubr.c | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c index 3aefabe..38d4911 100644 --- a/sys/net/if_ethersubr.c +++ b/sys/net/if_ethersubr.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)if_ethersubr.c 8.1 (Berkeley) 6/10/93 - * $Id: if_ethersubr.c,v 1.28 1996/12/10 07:29:48 davidg Exp $ + * $Id: if_ethersubr.c,v 1.29 1996/12/13 21:28:38 wollman Exp $ */ #include <sys/param.h> @@ -101,6 +101,8 @@ extern u_char at_org_code[ 3 ]; extern u_char aarp_org_code[ 3 ]; #endif NETATALK +static int ether_resolvemulti __P((struct ifnet *, struct sockaddr **, + struct sockaddr *)); u_char etherbroadcastaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; #define senderr(e) { error = (e); goto bad;} @@ -651,6 +653,7 @@ ether_ifattach(ifp) ifp->if_addrlen = 6; ifp->if_hdrlen = 14; ifp->if_mtu = ETHERMTU; + ifp->if_resolvemulti = ether_resolvemulti; if (ifp->if_baudrate == 0) ifp->if_baudrate = 10000000; ifa = ifnet_addrs[ifp->if_index - 1]; @@ -946,3 +949,51 @@ ether_ioctl(struct ifnet *ifp, int command, caddr_t data) } return (error); } + +int +ether_resolvemulti(ifp, llsa, sa) + struct ifnet *ifp; + struct sockaddr **llsa; + struct sockaddr *sa; +{ + struct sockaddr_dl *sdl; + struct sockaddr_in *sin; + u_char *e_addr; + + switch(sa->sa_family) { + case AF_LINK: + sdl = (struct sockaddr_dl *)sa; + e_addr = LLADDR(sdl); + if ((e_addr[0] & 1) != 1) + return EADDRNOTAVAIL; + *llsa = 0; + return 0; + +#ifdef INET + case AF_INET: + sin = (struct sockaddr_in *)sa; + if (!IN_MULTICAST(ntohl(sin->sin_addr.s_addr))) + return EADDRNOTAVAIL; + MALLOC(sdl, struct sockaddr_dl *, sizeof *sdl, M_IFMADDR, + M_WAITOK); + sdl->sdl_len = sizeof *sdl; + sdl->sdl_family = AF_LINK; + sdl->sdl_index = ifp->if_index; + sdl->sdl_type = IFT_ETHER; + sdl->sdl_nlen = 0; + sdl->sdl_alen = ETHER_ADDR_LEN; + sdl->sdl_slen = 0; + e_addr = LLADDR(sdl); + ETHER_MAP_IP_MULTICAST(&sin->sin_addr, e_addr); + *llsa = (struct sockaddr *)sdl; + return 0; +#endif + + default: + /* + * Well, the text isn't quite right, but it's the name + * that counts... + */ + return EAFNOSUPPORT; + } +} |
