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 // integrate the information from an IP_ADAPTER_UNICAST_ADDRESS structure for
32 // given CattaHwInterface into the CattaInterfaceMonitor
33 static void ip_adapter_unicast_address(CattaInterfaceMonitor *m,
35 IP_ADAPTER_UNICAST_ADDRESS *a)
37 CattaInterface *iface;
39 CattaInterfaceAddress *ifaddr;
40 struct sockaddr *sa = a->Address.lpSockaddr;
42 // fill addr struct for address lookup
43 switch(sa->sa_family) {
45 memcpy(addr.data.data, &((struct sockaddr_in *)sa)->sin_addr, sizeof(struct in_addr));
48 memcpy(addr.data.data, &((struct sockaddr_in6 *)sa)->sin6_addr, sizeof(struct in6_addr));
51 catta_log_debug("unexpected address family on interface %d: %u", hw->index, sa->sa_family);
54 addr.proto = catta_af_to_proto(sa->sa_family);
56 // get protocol-specific CattaInterface object
57 if(!(iface = catta_interface_monitor_get_interface(m, hw->index, addr.proto))) {
58 catta_log_error("CattaInterface (index %d, proto %d) not found", hw->index, addr.proto);
62 // find or allocate a CattaInterfaceAddress struct for this address
63 if(!(ifaddr = catta_interface_monitor_get_address(m, iface, &addr))) {
64 if(!(ifaddr = catta_interface_address_new(m, iface, &addr, a->OnLinkPrefixLength))) {
65 catta_log_error("out of memory in ip_adapter_unicast_address");
70 // set global scope flag
71 if(addr.proto == CATTA_PROTO_INET6)
72 ifaddr->global_scope = !(IN6_IS_ADDR_LINKLOCAL((struct in6_addr *)addr.data.data)
73 || IN6_IS_ADDR_MULTICAST((struct in6_addr *)addr.data.data));
75 ifaddr->global_scope = 1;
77 // XXX debugging, remove
79 char s[CATTA_ADDRESS_STR_MAX];
80 catta_log_debug(" address: %s\n"
82 catta_address_snprint(s, sizeof(s), &addr),
83 ifaddr->global_scope);
87 // integrate the information from an IP_ADAPTER_ADDRESSES structure
88 // as returned by GetAdaptersAddresses into the CattaInterfaceMonitor
89 static void ip_adapter(CattaInterfaceMonitor *m, IP_ADAPTER_ADDRESSES *p)
91 IP_ADAPTER_UNICAST_ADDRESS *a;
96 // we want an index specific to the hardware interface, but Windows
97 // has one for IPv4 and one for IPv6. it seems like these are always the
98 // same unless one of the protocols is not available. let's have a bunch of
100 if(!p->IfIndex && !p->Ipv6IfIndex) {
101 return; // no usable protocols
102 } else if(!p->IfIndex) {
103 idx = p->Ipv6IfIndex; // IPv6 but no IPv4 (huh!)
104 } else if(!p->Ipv6IfIndex) {
105 idx = p->IfIndex; // IPv4 but no IPv6
106 } else if(p->IfIndex == p->Ipv6IfIndex) {
107 idx = p->IfIndex; // same index for both protocols
109 // both indexes valid but not equal
110 catta_log_error("unsupported interface: %ls (IfIndex and Ipv6IfIndex differ: %u/%u)",
111 p->FriendlyName, (unsigned int)p->IfIndex, (unsigned int)p->Ipv6IfIndex);
115 // find the CattaHwInterface by index or allocate a new one
116 if((hw = catta_interface_monitor_get_hw_interface(m, idx)) == NULL) {
117 if((hw = catta_hw_interface_new(m, idx)) == NULL) {
118 catta_log_error("catta_hw_interface_new failed in ip_adapter_address");
123 // fill the CattaHwInterface struct with data
125 (p->OperStatus == IfOperStatusUp) &&
126 !(p->IfType == IF_TYPE_SOFTWARE_LOOPBACK) &&
127 !(p->Flags & IP_ADAPTER_NO_MULTICAST) &&
128 (m->server->config.allow_point_to_point || !(p->IfType == IF_TYPE_PPP));
129 // XXX what about IF_TYPE_TUNNEL?
131 n = wcstombs(NULL, p->FriendlyName, 0) + 1;
132 catta_free(hw->name);
133 hw->name = catta_new(char, n);
134 wcstombs(hw->name, p->FriendlyName, n);
138 hw->mac_address_size = p->PhysicalAddressLength;
139 if(hw->mac_address_size > CATTA_MAC_ADDRESS_MAX)
140 hw->mac_address_size = CATTA_MAC_ADDRESS_MAX;
141 memcpy(hw->mac_address, p->PhysicalAddress, hw->mac_address_size);
143 // XXX debugging, remove
146 catta_log_debug(" name: %s\n"
158 (unsigned int)p->IfIndex, (unsigned int)p->Ipv6IfIndex,
160 catta_format_mac_address(mac, sizeof(mac), hw->mac_address, hw->mac_address_size),
162 (unsigned int)p->IfType,
163 (unsigned int)p->OperStatus,
164 !(p->Flags & IP_ADAPTER_NO_MULTICAST),
165 (unsigned int)p->Flags);
169 // XXX remove addresses that are no longer in the list
170 for(a=p->FirstUnicastAddress; a; a=a->Next)
171 ip_adapter_unicast_address(m, hw, a);
172 catta_log_debug("=====");
176 int catta_interface_monitor_init_osdep(CattaInterfaceMonitor *m)
178 (void)*m; // silence "unused paramter" warning
180 // XXX register callbacks to get notified of interface/address changes
185 void catta_interface_monitor_free_osdep(CattaInterfaceMonitor *m)
187 (void)*m; // silence "unused paramter" warning
190 void catta_interface_monitor_sync(CattaInterfaceMonitor *m)
192 IP_ADAPTER_ADDRESSES *buf = NULL;
193 IP_ADAPTER_ADDRESSES *p;
194 ULONG bufsize = 15000;
197 // allocate a buffer and call GetAdaptersAddresses
198 // retry with the correct size if the buffer was too small
200 catta_free(buf); // no-op on first iteration
201 if((buf = catta_malloc(bufsize)) == NULL) {
202 catta_log_error("malloc failed in catta_interface_monitor_sync");
206 r = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, buf, &bufsize);
207 } while(r == ERROR_BUFFER_OVERFLOW);
210 catta_log_error("GetAdaptersAddresses failed: %u", (unsigned int)r);
214 // XXX remove interfaces for adapters that are no longer in the list
216 // create 'CattaInterface's for every adapter
217 for(p=buf; p; p=p->Next)
222 m->list_complete = 1;
223 catta_interface_monitor_check_relevant(m);
224 catta_interface_monitor_update_rrs(m, 0);
225 catta_log_info("Network interface enumeration completed.");