2 This file is part of catta.
4 catta is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 2.1 of the
7 License, or (at your option) any later version.
9 catta is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
12 Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with catta; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 #include "iface-windows.h"
23 #include <stdlib.h> // wcstombs
24 #include <catta/malloc.h>
25 #include <catta/log.h>
28 #include "util.h" // catta_format_mac_address
31 // for the luid-to-idx hashmap
32 static unsigned luid_hash(const void *data)
34 return ((NET_LUID *)data)->Info.NetLuidIndex;
36 static int luid_equal(const void *a, const void *b)
38 return (((NET_LUID *)a)->Value == ((NET_LUID *)b)->Value);
41 static CattaIfIndex find_ifindex(CattaInterfaceMonitor *m, NET_LUID luid)
43 CattaIfIndex *pi = NULL;
46 if((pi = catta_hashmap_lookup(m->osdep.idxmap, &luid)) == NULL) {
47 // allocate memory for the hashmap key and value
48 key = catta_malloc(sizeof(luid));
49 pi = catta_malloc(sizeof(CattaIfIndex));
55 // find an index for this luid
57 if(*pi < 0) // overflow
61 if(catta_hashmap_replace(m->osdep.idxmap, key, pi) < 0)
74 // integrate the information from an IP_ADAPTER_UNICAST_ADDRESS structure for
75 // given CattaHwInterface into the CattaInterfaceMonitor
76 static void ip_adapter_unicast_address(CattaInterfaceMonitor *m,
78 IP_ADAPTER_UNICAST_ADDRESS *a)
80 CattaInterface *iface;
82 CattaInterfaceAddress *ifaddr;
83 struct sockaddr *sa = a->Address.lpSockaddr;
85 // fill addr struct for address lookup
86 switch(sa->sa_family) {
88 memcpy(addr.data.data, &((struct sockaddr_in *)sa)->sin_addr, sizeof(struct in_addr));
91 memcpy(addr.data.data, &((struct sockaddr_in6 *)sa)->sin6_addr, sizeof(struct in6_addr));
94 catta_log_debug("unexpected address family on interface %d: %u", hw->index, sa->sa_family);
97 addr.proto = catta_af_to_proto(sa->sa_family);
99 // get protocol-specific CattaInterface object
100 if(!(iface = catta_interface_monitor_get_interface(m, hw->index, addr.proto))) {
101 catta_log_error("CattaInterface (index %d, proto %d) not found", hw->index, addr.proto);
105 // find or allocate a CattaInterfaceAddress struct for this address
106 if(!(ifaddr = catta_interface_monitor_get_address(m, iface, &addr))) {
107 if(!(ifaddr = catta_interface_address_new(m, iface, &addr, a->OnLinkPrefixLength))) {
108 catta_log_error("out of memory in ip_adapter_unicast_address");
113 // set global scope flag
114 if(addr.proto == CATTA_PROTO_INET6)
115 ifaddr->global_scope = !(IN6_IS_ADDR_LINKLOCAL((struct in6_addr *)addr.data.data)
116 || IN6_IS_ADDR_MULTICAST((struct in6_addr *)addr.data.data));
118 ifaddr->global_scope = 1;
120 // XXX debugging, remove
122 char s[CATTA_ADDRESS_STR_MAX];
123 catta_log_debug(" address: %s\n"
125 catta_address_snprint(s, sizeof(s), &addr),
126 ifaddr->global_scope);
130 // integrate the information from an IP_ADAPTER_ADDRESSES structure
131 // as returned by GetAdaptersAddresses into the CattaInterfaceMonitor
132 static void ip_adapter(CattaInterfaceMonitor *m, IP_ADAPTER_ADDRESSES *p)
134 IP_ADAPTER_UNICAST_ADDRESS *a;
136 CattaHwInterface *hw;
139 // look up the interface index by LUID
140 if((idx = find_ifindex(m, p->Luid)) < 0) {
141 catta_log_error("could not allocate index ip_adapter_address");
145 // find the CattaHwInterface by index or allocate a new one
146 if((hw = catta_interface_monitor_get_hw_interface(m, idx)) == NULL) {
147 if((hw = catta_hw_interface_new(m, idx)) == NULL) {
148 catta_log_error("catta_hw_interface_new failed in ip_adapter_address");
153 // fill the CattaHwInterface struct with data
155 (p->OperStatus == IfOperStatusUp) &&
156 !(p->IfType == IF_TYPE_SOFTWARE_LOOPBACK) &&
157 !(p->Flags & IP_ADAPTER_NO_MULTICAST) &&
158 (m->server->config.allow_point_to_point || !(p->IfType == IF_TYPE_PPP));
159 // XXX what about IF_TYPE_TUNNEL?
161 n = wcstombs(NULL, p->FriendlyName, 0) + 1;
162 catta_free(hw->name);
163 hw->name = catta_new(char, n);
164 wcstombs(hw->name, p->FriendlyName, n);
168 hw->mac_address_size = p->PhysicalAddressLength;
169 if(hw->mac_address_size > CATTA_MAC_ADDRESS_MAX)
170 hw->mac_address_size = CATTA_MAC_ADDRESS_MAX;
171 memcpy(hw->mac_address, p->PhysicalAddress, hw->mac_address_size);
173 // XXX debugging, remove
176 catta_log_debug(" name: %s\n"
187 catta_format_mac_address(mac, sizeof(mac), hw->mac_address, hw->mac_address_size),
189 (unsigned int)p->IfType,
190 (unsigned int)p->OperStatus,
191 !(p->Flags & IP_ADAPTER_NO_MULTICAST),
192 (unsigned int)p->Flags);
196 // XXX remove addresses that are no longer in the list
197 for(a=p->FirstUnicastAddress; a; a=a->Next)
198 ip_adapter_unicast_address(m, hw, a);
199 catta_log_debug("=====");
203 int catta_interface_monitor_init_osdep(CattaInterfaceMonitor *m)
206 m->osdep.idxmap = catta_hashmap_new(luid_hash, luid_equal, catta_free, catta_free);
207 if(m->osdep.idxmap == NULL) {
208 catta_log_error("out of memory in catta_interface_monitor_init_osdep");
212 // XXX register callbacks to get notified of interface/address changes
217 void catta_interface_monitor_free_osdep(CattaInterfaceMonitor *m)
219 catta_hashmap_free(m->osdep.idxmap);
222 void catta_interface_monitor_sync(CattaInterfaceMonitor *m)
224 IP_ADAPTER_ADDRESSES *buf = NULL;
225 IP_ADAPTER_ADDRESSES *p;
226 ULONG bufsize = 15000;
229 // allocate a buffer and call GetAdaptersAddresses
230 // retry with the correct size if the buffer was too small
232 catta_free(buf); // no-op on first iteration
233 if((buf = catta_malloc(bufsize)) == NULL) {
234 catta_log_error("malloc failed in catta_interface_monitor_sync");
238 r = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, buf, &bufsize);
239 } while(r == ERROR_BUFFER_OVERFLOW);
242 catta_log_error("GetAdaptersAddresses failed: %u", (unsigned int)r);
246 // XXX remove interfaces for adapters that are no longer in the list
248 // create 'CattaInterface's for every adapter
249 for(p=buf; p; p=p->Next)
254 m->list_complete = 1;
255 catta_interface_monitor_check_relevant(m);
256 catta_interface_monitor_update_rrs(m, 0);
257 catta_log_info("Network interface enumeration completed.");