/* $NetBSD: device.c,v 1.13 2016/06/08 01:11:49 christos Exp $ */ /* * Copyright (c) 1993-95 Mats O Jansson. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "port.h" #ifndef lint __RCSID("$NetBSD: device.c,v 1.13 2016/06/08 01:11:49 christos Exp $"); #endif #include "os.h" #include "common.h" #include "device.h" #include "mopdef.h" #include "pf.h" #include "log.h" struct if_info *iflist; /* Interface List */ void deviceOpen(const char *, u_short, int); /* * Return ethernet address for interface */ void deviceEthAddr(const char *ifname, u_char *eaddr) { #ifndef AF_LINK int fd; struct ifreq ifr; /* Use datagram socket to get Ethernet address. */ if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) mopLogErr("deviceEthAddr: socket"); strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); if (ioctl(fd, SIOCGIFHWADDR, &ifr) == -1) mopLogErr("deviceEthAddr: SIOGIFHWADDR"); memcpy(eaddr, ifr.ifr_hwaddr.sa_data, 6); close(fd); #else struct sockaddr_dl *sdl; struct ifaddrs *ifap, *ifa; if (getifaddrs(&ifap) != 0) mopLogErr("deviceEthAddr: getifaddrs"); for (ifa = ifap; ifa; ifa = ifa->ifa_next) { sdl = (struct sockaddr_dl *)ifa->ifa_addr; if (sdl->sdl_family != AF_LINK || sdl->sdl_type != IFT_ETHER || sdl->sdl_alen != 6) continue; if (!strcmp(ifa->ifa_name, ifname)) { memmove((caddr_t)eaddr, (caddr_t)LLADDR(sdl), 6); freeifaddrs(ifap); return; } } freeifaddrs(ifap); mopLogErrX("deviceEthAddr: Never saw interface `%s'!", ifname); #endif } void deviceOpen(const char *ifname, u_short proto, int trans) { struct if_info *p, tmp; strlcpy(tmp.if_name, ifname, sizeof(tmp.if_name)); tmp.iopen = pfInit; switch (proto) { case MOP_K_PROTO_RC: tmp.read = mopReadRC; tmp.fd = mopOpenRC(&tmp, trans); break; case MOP_K_PROTO_DL: tmp.read = mopReadDL; tmp.fd = mopOpenDL(&tmp, trans); break; default: break; } if (tmp.fd != -1) { p = malloc(sizeof(*p)); if (p == 0) mopLogErr("deviceOpen: malloc"); p->next = iflist; iflist = p; strlcpy(p->if_name, tmp.if_name, sizeof(p->if_name)); p->iopen = tmp.iopen; p->write = pfWrite; p->read = tmp.read; memset((char *)p->eaddr, 0, sizeof(p->eaddr)); p->fd = tmp.fd; #ifdef DEV_NEW_CONF deviceEthAddr(p->if_name,&p->eaddr[0]); #else p->eaddr[0]= tmp.eaddr[0]; p->eaddr[1]= tmp.eaddr[1]; p->eaddr[2]= tmp.eaddr[2]; p->eaddr[3]= tmp.eaddr[3]; p->eaddr[4]= tmp.eaddr[4]; p->eaddr[5]= tmp.eaddr[5]; #endif /* DEV_NEW_CONF */ } } void deviceInitOne(const char *ifname) { char interface[IFNAME_SIZE]; struct if_info *p; int trans; #ifdef _AIX char dev[IFNAME_SIZE]; int unit,j; unit = 0; for (j = 0; j < strlen(ifname); j++) { if (isalpha(ifname[j])) { dev[j] = ifname[j]; } else { if (isdigit(ifname[j])) { unit = unit*10 + ifname[j] - '0'; dev[j] = '\0'; } } } if ((strlen(dev) == 2) && (dev[0] == 'e') && ((dev[1] == 'n') || (dev[1] == 't'))) { snprintf(interface, sizeof(interface), "ent%d\0", unit); } else { snprintf(interface, sizeof(interface), "%s%d\0", dev, unit); } #else snprintf(interface, sizeof(interface), "%s", ifname); #endif /* _AIX */ /* Ok, init it just once */ p = iflist; for (p = iflist; p; p = p->next) { if (strcmp(p->if_name,interface) == 0) { return; } } if (!mopInteractive) syslog(LOG_INFO, "Initialized %s", interface); /* Ok, get transport information */ trans = pfTrans(interface); #ifndef NORC /* Start with MOP Remote Console */ switch (trans) { case TRANS_ETHER: deviceOpen(interface,MOP_K_PROTO_RC,TRANS_ETHER); break; case TRANS_8023: deviceOpen(interface,MOP_K_PROTO_RC,TRANS_8023); break; case TRANS_ETHER+TRANS_8023: deviceOpen(interface,MOP_K_PROTO_RC,TRANS_ETHER); deviceOpen(interface,MOP_K_PROTO_RC,TRANS_8023); break; case TRANS_ETHER+TRANS_8023+TRANS_AND: deviceOpen(interface,MOP_K_PROTO_RC,TRANS_ETHER+TRANS_8023); break; } #endif #ifndef NODL /* and next MOP Dump/Load */ switch (trans) { case TRANS_ETHER: deviceOpen(interface,MOP_K_PROTO_DL,TRANS_ETHER); break; case TRANS_8023: deviceOpen(interface,MOP_K_PROTO_DL,TRANS_8023); break; case TRANS_ETHER+TRANS_8023: deviceOpen(interface,MOP_K_PROTO_DL,TRANS_ETHER); deviceOpen(interface,MOP_K_PROTO_DL,TRANS_8023); break; case TRANS_ETHER+TRANS_8023+TRANS_AND: deviceOpen(interface,MOP_K_PROTO_DL,TRANS_ETHER+TRANS_8023); break; } #endif } /* * Initialize all "candidate" interfaces that are in the system * configuration list. A "candidate" is up, not loopback and not * point to point. */ void deviceInitAll(void) { struct ifaddrs *ifap, *ifa; if (getifaddrs(&ifap) != 0) mopLogErr("deviceInitAll: socket"); for (ifa = ifap; ifa; ifa = ifa->ifa_next) { #ifdef AF_LINK struct sockaddr_dl *sdl; sdl = (struct sockaddr_dl *)ifa->ifa_addr; if (sdl->sdl_family != AF_LINK || sdl->sdl_type != IFT_ETHER || sdl->sdl_alen != 6) continue; #endif if ((ifa->ifa_flags & (IFF_UP | IFF_LOOPBACK | IFF_POINTOPOINT)) != IFF_UP) continue; deviceInitOne(ifa->ifa_name); } freeifaddrs(ifap); }