X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/43866e378188c25dd1e2208016ab3cbeb086ae6c..5eebf7385fedb1517b66b53c28e5aa6bb0a2be50:/bsd/net/if_loop.c diff --git a/bsd/net/if_loop.c b/bsd/net/if_loop.c index ca5e52385..33255ecb1 100644 --- a/bsd/net/if_loop.c +++ b/bsd/net/if_loop.c @@ -3,22 +3,19 @@ * * @APPLE_LICENSE_HEADER_START@ * - * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. + * The contents of this file constitute Original Code as defined in and + * are subject to the Apple Public Source License Version 1.1 (the + * "License"). You may not use this file except in compliance with the + * License. Please obtain a copy of the License at + * http://www.apple.com/publicsource and read it before using this file. * - * This file contains Original Code and/or Modifications of Original Code - * as defined in and that are subject to the Apple Public Source License - * Version 2.0 (the 'License'). You may not use this file except in - * compliance with the License. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. - * - * The Original Code and all software distributed under the License are - * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * This Original Code and all software distributed under the License are + * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and - * limitations under the License. + * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the + * License for the specific language governing rights and limitations + * under the License. * * @APPLE_LICENSE_HEADER_END@ */ @@ -353,7 +350,7 @@ lo_pre_output(ifp, m, dst, route, frame_type, dst_addr, dl_tag) ifq = &atalkintrq; isr = NETISR_APPLETALK; break; -#endif NETAT +#endif /* NETAT */ default: return (EAFNOSUPPORT); } @@ -432,13 +429,8 @@ lortrequest(cmd, rt, sa) /* * Process an ioctl request. */ -/* ARGSUSED */ static int -loioctl(dl_tag, ifp, cmd, data) - u_long dl_tag; - register struct ifnet *ifp; - u_long cmd; - void *data; +lo_if_ioctl(struct ifnet *ifp, u_long cmd, void * data) { register struct ifaddr *ifa; register struct ifreq *ifr = (struct ifreq *)data; @@ -487,48 +479,39 @@ loioctl(dl_tag, ifp, cmd, data) default: error = EOPNOTSUPP; + break; } return (error); } -#endif /* NLOOP > 0 */ - -int lo_shutdown() +static int +loioctl(u_long dl_tag, struct ifnet *ifp, u_long cmd, caddr_t data) { - return 0; + return (lo_if_ioctl(ifp, cmd, data)); } +#endif /* NLOOP > 0 */ -void lo_reg_if_mods() -{ - struct dlil_ifmod_reg_str lo_ifmod; - - bzero(&lo_ifmod, sizeof(lo_ifmod)); - lo_ifmod.add_if = lo_add_if; - lo_ifmod.del_if = lo_del_if; - lo_ifmod.add_proto = lo_add_proto; - lo_ifmod.del_proto = lo_del_proto; - lo_ifmod.ifmod_ioctl = 0; - lo_ifmod.shutdown = lo_shutdown; - if (dlil_reg_if_modules(APPLE_IF_FAM_LOOPBACK, &lo_ifmod)) - panic("Couldn't register lo modules\n"); +int lo_shutdown() +{ + return 0; } - -u_long lo_attach_inet(struct ifnet *ifp) +int lo_attach_inet(struct ifnet *ifp, u_long *dl_tag) { struct dlil_proto_reg_str reg; struct dlil_demux_desc desc; - u_long dl_tag=0; short native=0; - int stat; + int stat =0 ; int i; for (i=0; i < lo_count; i++) { if ((lo_array[i]) && (lo_array[i]->ifp == ifp)) { - if (lo_array[i]->protocol_family == PF_INET) - return lo_array[i]->dl_tag; + if (lo_array[i]->protocol_family == PF_INET) { + *dl_tag = lo_array[i]->dl_tag; + return (0); + } } } @@ -549,27 +532,28 @@ u_long lo_attach_inet(struct ifnet *ifp) reg.default_proto = 0; reg.protocol_family = PF_INET; - stat = dlil_attach_protocol(®, &dl_tag); - if (stat) { - panic("lo_attach_inet can't attach interface\n"); - } + stat = dlil_attach_protocol(®, dl_tag); + + if (stat) + printf("lo_attach_inet: dlil_attach_protocol returned=%d\n", stat); - return dl_tag; + return stat; } -u_long lo_attach_inet6(struct ifnet *ifp) +int lo_attach_inet6(struct ifnet *ifp, u_long *dl_tag) { struct dlil_proto_reg_str reg; struct dlil_demux_desc desc; - u_long dl_tag=0; short native=0; int stat; int i; for (i=0; i < lo_count; i++) { if ((lo_array[i]) && (lo_array[i]->ifp == ifp)) { - if (lo_array[i]->protocol_family == PF_INET6) - return lo_array[i]->dl_tag; + if (lo_array[i]->protocol_family == PF_INET6) { + *dl_tag = lo_array[i]->dl_tag; + return (0); + } } } @@ -590,14 +574,47 @@ u_long lo_attach_inet6(struct ifnet *ifp) reg.default_proto = 0; reg.protocol_family = PF_INET6; - stat = dlil_attach_protocol(®, &dl_tag); - if (stat) { - panic("lo_attach_inet6 can't attach interface\n"); - } + stat = dlil_attach_protocol(®, dl_tag); + + if (stat) + printf("lo_attach_inet6: dlil_attach_protocol returned=%d\n", stat); - return dl_tag; + return stat; } +void lo_reg_if_mods() +{ + struct dlil_ifmod_reg_str lo_ifmod; + struct dlil_protomod_reg_str lo_protoreg; + int error; + + bzero(&lo_ifmod, sizeof(lo_ifmod)); + lo_ifmod.add_if = lo_add_if; + lo_ifmod.del_if = lo_del_if; + lo_ifmod.add_proto = lo_add_proto; + lo_ifmod.del_proto = lo_del_proto; + lo_ifmod.ifmod_ioctl = 0; + lo_ifmod.shutdown = lo_shutdown; + + if (dlil_reg_if_modules(APPLE_IF_FAM_LOOPBACK, &lo_ifmod)) + panic("Couldn't register lo modules\n"); + + /* Register protocol registration functions */ + + bzero(&lo_protoreg, sizeof(lo_protoreg)); + lo_protoreg.attach_proto = lo_attach_inet; + lo_protoreg.detach_proto = NULL; /* no detach function for loopback */ + + if ( error = dlil_reg_proto_module(PF_INET, APPLE_IF_FAM_LOOPBACK, &lo_protoreg) != 0) + printf("dlil_reg_proto_module failed for AF_INET error=%d\n", error); + + lo_protoreg.attach_proto = lo_attach_inet6; + lo_protoreg.detach_proto = NULL; + + if ( error = dlil_reg_proto_module(PF_INET6, APPLE_IF_FAM_LOOPBACK, &lo_protoreg) != 0) + printf("dlil_reg_proto_module failed for AF_INET6 error=%d\n", error); + +} int lo_set_bpf_tap(struct ifnet *ifp, int mode, int (*bpf_callback)(struct ifnet *, struct mbuf *)) { @@ -637,7 +654,7 @@ loopattach(dummy) ifp->if_unit = i++; ifp->if_mtu = LOMTU; ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST; - ifp->if_ioctl = loioctl; + ifp->if_ioctl = lo_if_ioctl; ifp->if_set_bpf_tap = lo_set_bpf_tap; ifp->if_output = lo_output; ifp->if_type = IFT_LOOP;