An Overlay-based
Virtual Network Substrate
SpoVNet

source: source/ariba/communication/networkinfo/AddressDiscovery.cpp @ 10653

Last change on this file since 10653 was 10653, checked in by Michael Tänzer, 7 years ago

Merge the ASIO branch back into trunk

File size: 4.5 KB
Line 
1// [License]
2// The Ariba-Underlay Copyright
3//
4// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
5//
6// Institute of Telematics
7// UniversitÀt Karlsruhe (TH)
8// Zirkel 2, 76128 Karlsruhe
9// Germany
10//
11// Redistribution and use in source and binary forms, with or without
12// modification, are permitted provided that the following conditions are
13// met:
14//
15// 1. Redistributions of source code must retain the above copyright
16// notice, this list of conditions and the following disclaimer.
17// 2. Redistributions in binary form must reproduce the above copyright
18// notice, this list of conditions and the following disclaimer in the
19// documentation and/or other materials provided with the distribution.
20//
21// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
22// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR
25// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32//
33// The views and conclusions contained in the software and documentation
34// are those of the authors and should not be interpreted as representing
35// official policies, either expressed or implied, of the Institute of
36// Telematics.
37// [License]
38
39#include "AddressDiscovery.h"
40#include "ariba/config.h"
41
42#include <sys/types.h>
43#include <sys/socket.h>
44#include <sys/ioctl.h>
45#include <sys/socket.h>
46#include <arpa/inet.h>
47#include <netinet/in.h>
48#include <net/if.h>
49#include <ifaddrs.h>
50
51#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
52  #include <bluetooth/bluetooth.h>
53  #include <bluetooth/hci.h>
54  #include <bluetooth/hci_lib.h>
55#endif
56
57namespace ariba {
58namespace communication {
59
60mac_address AddressDiscovery::getMacFromIF( const char* name ) {
61        mac_address addr;
62#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
63        int s;
64        struct ifreq buffer;
65        s = socket(PF_INET, SOCK_DGRAM, 0);
66        memset(&buffer, 0x00, sizeof(buffer));
67        strcpy(buffer.ifr_name, name);
68        ioctl(s, SIOCGIFHWADDR, &buffer);
69        close(s);
70        addr.assign( (uint8_t*)buffer.ifr_hwaddr.sa_data, 6 );
71#endif
72        return addr;
73}
74
75int AddressDiscovery::dev_info(int s, int dev_id, long arg) {
76#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
77        endpoint_set* set = (endpoint_set*)arg;
78        struct hci_dev_info di;
79        memset(&di, 0, sizeof(struct hci_dev_info));
80        di.dev_id = dev_id;
81        if (ioctl(s, HCIGETDEVINFO, (void *) &di)) return 0;
82        mac_address mac;
83        mac.bluetooth( di.bdaddr );
84        address_vf vf = mac;
85        set->add(vf);
86#endif
87        return 0;
88}
89
90void AddressDiscovery::discover_bluetooth( endpoint_set& endpoints ) {
91#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
92        hci_for_each_dev(HCI_UP, &AddressDiscovery::dev_info, (long)&endpoints );
93#endif
94}
95
96void AddressDiscovery::discover_ip_addresses( endpoint_set& endpoints ) {
97        struct ifaddrs* ifaceBuffer = NULL;
98        void*           tmpAddrPtr  = NULL;
99
100        int ret = getifaddrs( &ifaceBuffer );
101        if( ret != 0 ) return;
102
103        for( struct ifaddrs* i=ifaceBuffer; i != NULL; i=i->ifa_next ) {
104
105                // ignore devices that are disabled or have no ip
106                if(i == NULL) continue;
107                struct sockaddr* addr = i->ifa_addr;
108                if (addr==NULL) continue;
109
110                // ignore tun devices
111                string device = string(i->ifa_name);
112                if(device.find_first_of("tun") == 0) continue;
113
114                if (addr->sa_family == AF_INET) {
115                        // look for ipv4
116                        char straddr[INET_ADDRSTRLEN];
117                        tmpAddrPtr= &((struct sockaddr_in*)addr)->sin_addr;
118                        inet_ntop( i->ifa_addr->sa_family, tmpAddrPtr, straddr, sizeof(straddr) );
119                        ip_address ip = straddr;
120                        if (ip.is_loopback()) continue;
121                        address_vf vf = ip;
122                        endpoints.add( vf );
123                } else
124                if (addr->sa_family == AF_INET6) {
125                        // look for ipv6
126                        char straddr[INET6_ADDRSTRLEN];
127                        tmpAddrPtr= &((struct sockaddr_in6*)addr)->sin6_addr;
128                        inet_ntop( i->ifa_addr->sa_family, tmpAddrPtr, straddr, sizeof(straddr) );
129                        ip_address ip = straddr;
130                        if (ip.is_loopback()) continue;
131//                      if (ip.is_link_local()) continue;
132                        address_vf vf = ip;
133                        endpoints.add( vf );
134                }
135        }
136
137        freeifaddrs(ifaceBuffer);
138}
139
140void AddressDiscovery::discover_endpoints( endpoint_set& endpoints ) {
141        discover_ip_addresses( endpoints );
142        discover_bluetooth( endpoints );
143}
144
145}} // namespace ariba, communication
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