source: source/ariba/communication/networkinfo/AddressDiscovery.hpp@ 5316

Last change on this file since 5316 was 5284, checked in by mies, 15 years ago

+ added new transport modules and adapted ariba to them
+ exchange endpoint descriptors an link establishment
+ clean up of base communication
+ link establishment with in the presence of multiple endpoints
+ local discovery for ipv6, ipv4 and bluetooth mac addresses

File size: 1.9 KB
RevLine 
[5284]1#ifndef ADDRESSDISCOVERY_HPP_
2#define ADDRESSDISCOVERY_HPP_
3
4#include "ariba/utility/addressing/addressing.hpp"
5
6#include <sys/types.h>
7#include <sys/socket.h>
8#include <arpa/inet.h>
9#include <netinet/in.h>
10#include <net/if.h>
11#include <ifaddrs.h>
12
13using namespace ariba::addressing;
14
15mac_address getMacFromIF( const char* name ) {
16 int s;
17 struct ifreq buffer;
18 s = socket(PF_INET, SOCK_DGRAM, 0);
19 memset(&buffer, 0x00, sizeof(buffer));
20 strcpy(buffer.ifr_name, name);
21 ioctl(s, SIOCGIFHWADDR, &buffer);
22 close(s);
23 mac_address addr;
24 addr.assign( (uint8_t*)buffer.ifr_hwaddr.sa_data, 6 );
25 return addr;
26}
27
28void discoverEndpoints( endpoint_set& endpoints ) {
29 struct ifaddrs* ifaceBuffer = NULL;
30 struct ifaddrs* tmpAddr = NULL;
31 void* tmpAddrPtr = NULL;
32 char straddr [INET_ADDRSTRLEN];
33
34 int ret = getifaddrs( &ifaceBuffer );
35 if( ret != 0 ) return;
36
37 for( struct ifaddrs* i=ifaceBuffer; i != NULL; i=i->ifa_next ) {
38
39 // ignore devices that are disabled or have no ip
40 if(i == NULL) continue;
41 struct sockaddr* addr = i->ifa_addr;
42
43 // only look at IPv4, not IPv6 addresses
44 if (addr->sa_family == AF_INET) {
45 if (addr==NULL) continue;
46 tmpAddrPtr= &((struct sockaddr_in*)addr)->sin_addr;
47 inet_ntop( i->ifa_addr->sa_family, tmpAddrPtr, straddr, sizeof(straddr) );
48 ip_address ip = straddr;
49 if (ip.is_loopback()) continue;
50 address_vf vf = ip;
51 endpoints.add( vf );
52 } else
53 if (addr->sa_family == AF_INET6) {
54 if (addr==NULL) continue;
55 tmpAddrPtr= &((struct sockaddr_in6*)addr)->sin6_addr;
56 inet_ntop( i->ifa_addr->sa_family, tmpAddrPtr, straddr, sizeof(straddr) );
57 ip_address ip = straddr;
58 if (ip.is_loopback()) continue;
59 address_vf vf = ip;
60 endpoints.add( vf );
61 } else
62 if (i->ifa_name[0]=='p' && i->ifa_name[1]=='a' && i->ifa_name[2]=='n') {
63 mac_address mac = getMacFromIF(i->ifa_name);
64 address_vf vf = mac;
65 endpoints.add( vf );
66 }
67 }
68}
69
70#endif /* ADDRESSDISCOVERY_HPP_ */
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