--- /dev/null
+/*
+ * $Id$
+ *
+ * Authors:
+ * Craig Metz <cmetz@inner.net>
+ *
+ * This software is Copyright 1996,1997 by the above mentioned author(s),
+ * All Rights Reserved.
+ *
+ * The license which is distributed with this software in the file COPYRIGHT
+ * applies to this software. If your distribution is missing this file, you
+ * may request it from <pekkas@netcore.fi>.
+ *
+ */
+
+#include <config.h>
+#include <includes.h>
+#include <radvd.h>
+#include <defaults.h>
+#include <pathnames.h> /* for PATH_PROC_NET_IF_INET6 */
+
+static uint8_t ll_prefix[] = { 0xfe, 0x80 };
+
+/*
+ * this function gets the hardware type and address of an interface,
+ * determines the link layer token length and checks it against
+ * the defined prefixes
+ */
+int
+setup_deviceinfo(int sock, struct Interface *iface)
+{
+ struct ifconf ifconf;
+ struct ifreq ifr;
+ unsigned int nlen;
+ uint8_t *p, *end;
+ struct AdvPrefix *prefix;
+ char zero[sizeof(iface->if_addr)];
+
+ /* just allocate 8192 bytes, should be more than enough.. */
+ if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len = (32 << 8))))
+ {
+ flog(LOG_CRIT, "malloc failed: %s", strerror(errno));
+ goto ret;
+ }
+
+ if (ioctl(sock, SIOCGIFCONF, &ifconf) < 0)
+ {
+ flog(LOG_ERR, "ioctl(SIOCGIFCONF) failed: %s(%d)", strerror(errno), errno);
+ goto ret;
+ }
+
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, iface->Name, IFNAMSIZ-1);
+ ifr.ifr_name[IFNAMSIZ-1] = '\0';
+
+ if (ioctl(sock, SIOCGIFMTU, &ifr) < 0) {
+ flog(LOG_ERR, "ioctl(SIOCGIFMTU) failed for %s: %s", iface->Name, strerror(errno));
+ goto ret;
+ }
+
+ dlog(LOG_DEBUG, 3, "mtu for %s is %d", iface->Name, ifr.ifr_mtu);
+ iface->if_maxmtu = ifr.ifr_mtu;
+
+ p = (uint8_t *)ifconf.ifc_buf;
+ end = p + ifconf.ifc_len;
+ nlen = strlen(iface->Name);
+
+ while(p < end)
+ {
+ p += IFNAMSIZ;
+
+ if ((p + 2) >= end)
+ break;
+
+ if ((p + *p) >= end)
+ break;
+
+ if ((*(p + 1) == AF_LINK) &&
+ (((struct sockaddr_dl *)p)->sdl_nlen == nlen) &&
+ (!memcmp(iface->Name, ((struct sockaddr_dl *)p)->sdl_data, nlen)))
+ {
+
+ if (((struct sockaddr_dl *)p)->sdl_alen > sizeof(iface->if_addr))
+ {
+ flog(LOG_ERR, "address length %d too big for",
+ ((struct sockaddr_dl *)p)->sdl_alen,
+ iface->Name);
+ goto ret;
+ }
+
+ memcpy(iface->if_hwaddr, LLADDR((struct sockaddr_dl *)p), ((struct sockaddr_dl *)p)->sdl_alen);
+ iface->if_hwaddr_len = ((struct sockaddr_dl *)p)->sdl_alen << 3;
+
+ switch(((struct sockaddr_dl *)p)->sdl_type) {
+ case IFT_ETHER:
+ case IFT_ISO88023:
+ iface->if_prefix_len = 64;
+ break;
+ case IFT_FDDI:
+ iface->if_prefix_len = 64;
+ break;
+ default:
+ iface->if_prefix_len = -1;
+ iface->if_maxmtu = -1;
+ break;
+ }
+
+ dlog(LOG_DEBUG, 3, "link layer token length for %s is %d", iface->Name,
+ iface->if_hwaddr_len);
+
+ dlog(LOG_DEBUG, 3, "prefix length for %s is %d", iface->Name,
+ iface->if_prefix_len);
+
+ if (iface->if_prefix_len != -1) {
+ memset(zero, 0, ((struct sockaddr_dl *)p)->sdl_alen);
+ if (!memcmp(iface->if_hwaddr, zero, ((struct sockaddr_dl *)p)->sdl_alen))
+ flog(LOG_WARNING, "WARNING, MAC address on %s is all zero!",
+ iface->Name);
+ }
+
+ prefix = iface->AdvPrefixList;
+ while (prefix)
+ {
+ if ((iface->if_prefix_len != -1) &&
+ (iface->if_prefix_len != prefix->PrefixLen))
+ {
+ flog(LOG_WARNING, "prefix length should be %d for %s",
+ iface->if_prefix_len, iface->Name);
+ }
+
+ prefix = prefix->next;
+ }
+
+ free(ifconf.ifc_buf);
+ return 0;
+ }
+
+ p += *p;
+ }
+
+ret:
+ iface->if_maxmtu = -1;
+ iface->if_hwaddr_len = -1;
+ iface->if_prefix_len = -1;
+ free(ifconf.ifc_buf);
+ return -1;
+}
+
+int setup_linklocal_addr(int sock, struct Interface *iface)
+{
+ struct ifconf ifconf;
+ unsigned int nlen;
+ uint8_t *p, *end;
+ int index = 0;
+
+ /* just allocate 8192 bytes, should be more than enough.. */
+ if (!(ifconf.ifc_buf = malloc(ifconf.ifc_len = (32 << 8))))
+ {
+ flog(LOG_CRIT, "malloc failed: %s", strerror(errno));
+ goto ret;
+ }
+
+ if (ioctl(sock, SIOCGIFCONF, &ifconf) < 0)
+ {
+ flog(LOG_ERR, "ioctl(SIOCGIFCONF) failed: %s(%d)", strerror(errno), errno);
+ goto ret;
+ }
+
+ p = (uint8_t *)ifconf.ifc_buf;
+ end = p + ifconf.ifc_len;
+ nlen = strlen(iface->Name);
+
+ while(p < end)
+ {
+ p += IFNAMSIZ;
+
+ if ((p + 2) >= end)
+ break;
+
+ if ((p + *p) >= end)
+ break;
+
+ if ((*(p + 1) == AF_LINK) &&
+ (((struct sockaddr_dl *)p)->sdl_nlen == nlen) &&
+ (!memcmp(iface->Name, ((struct sockaddr_dl *)p)->sdl_data, nlen)))
+ {
+ index = ((struct sockaddr_dl *)p)->sdl_index;
+ }
+
+ if (index && (*(p + 1) == AF_INET6))
+ if (!memcmp(&((struct sockaddr_in6 *)p)->sin6_addr, ll_prefix, sizeof(ll_prefix)))
+ {
+ memcpy(&iface->if_addr, &((struct sockaddr_in6 *)p)->sin6_addr, sizeof(struct in6_addr));
+ iface->if_index = index;
+
+ free(ifconf.ifc_buf);
+ return 0;
+ }
+
+ p += *p;
+
+ }
+
+ret:
+ flog(LOG_ERR, "no linklocal address configured for %s", iface->Name);
+ free(ifconf.ifc_buf);
+ return -1;
+}
+
+int setup_allrouters_membership(int sock, struct Interface *iface)
+{
+ return (0);
+}
+
+int check_allrouters_membership(int sock, struct Interface *iface)
+{
+ return (0);
+}
+
+int
+set_interface_linkmtu(const char *iface, uint32_t mtu)
+{
+ dlog(LOG_DEBUG, 4, "setting LinkMTU (%u) for %s is not supported",
+ mtu, iface);
+ return -1;
+}
+
+int
+set_interface_curhlim(const char *iface, uint8_t hlim)
+{
+ dlog(LOG_DEBUG, 4, "setting CurHopLimit (%u) for %s is not supported",
+ hlim, iface);
+ return -1;
+}
+
+int
+set_interface_reachtime(const char *iface, uint32_t rtime)
+{
+ dlog(LOG_DEBUG, 4, "setting BaseReachableTime (%u) for %s is not supported",
+ rtime, iface);
+ return -1;
+}
+
+int
+set_interface_retranstimer(const char *iface, uint32_t rettimer)
+{
+ dlog(LOG_DEBUG, 4, "setting RetransTimer (%u) for %s is not supported",
+ rettimer, iface);
+ return -1;
+}
+
projects / tinyos-2.x.git / blobdiff