1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/* interface.c
* Utility functions to get infos from interfaces
*
* Copyright 2016, Dario Lombardo
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include "interface.h"
#include <string.h>
#include <wsutil/inet_addr.h>
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_IFADDRS_H
#include <ifaddrs.h>
#endif
#ifdef _WIN32
#include <winsock2.h>
#include <iphlpapi.h>
#include <ws2tcpip.h>
#endif
#define WORKING_BUFFER_SIZE 15000
#ifdef HAVE_GETIFADDRS
static GSList* local_interfaces_to_list_nix(void)
{
GSList *interfaces = NULL;
struct ifaddrs *ifap;
struct ifaddrs *ifa;
int family;
char ip[WS_INET6_ADDRSTRLEN];
if (getifaddrs(&ifap)) {
goto end;
}
for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
if (ifa->ifa_addr == NULL)
continue;
family = ifa->ifa_addr->sa_family;
memset(ip, 0x0, WS_INET6_ADDRSTRLEN);
switch (family) {
case AF_INET:
{
struct sockaddr_in *addr4 = (struct sockaddr_in *)ifa->ifa_addr;
ws_inet_ntop4(&addr4->sin_addr, ip, sizeof(ip));
break;
}
case AF_INET6:
{
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)ifa->ifa_addr;
ws_inet_ntop6(&addr6->sin6_addr, ip, sizeof(ip));
break;
}
default:
break;
}
/* skip loopback addresses */
if (!g_strcmp0(ip, "127.0.0.1") || !g_strcmp0(ip, "::1"))
continue;
if (*ip) {
interfaces = g_slist_prepend(interfaces, g_strdup(ip));
}
}
freeifaddrs(ifap);
end:
return interfaces;
}
#endif /* HAVE_GETIFADDRS */
#ifdef _WIN32
static GSList* local_interfaces_to_list_win(void)
{
GSList *interfaces = NULL;
PIP_ADAPTER_ADDRESSES pAddresses = NULL;
ULONG outBufLen = WORKING_BUFFER_SIZE;
ULONG family = AF_UNSPEC;
PIP_ADAPTER_ADDRESSES pCurrAddresses = NULL;
PIP_ADAPTER_UNICAST_ADDRESS pUnicast = NULL;
char ip[100];
unsigned iplen = 100;
pAddresses = (IP_ADAPTER_ADDRESSES *)g_malloc0(outBufLen);
if (pAddresses == NULL)
return NULL;
if (GetAdaptersAddresses(family, 0, NULL, pAddresses, &outBufLen) != NO_ERROR)
goto end;
pCurrAddresses = pAddresses;
while (pCurrAddresses) {
for (pUnicast = pCurrAddresses->FirstUnicastAddress; pUnicast != NULL; pUnicast = pUnicast->Next) {
if (pUnicast->Address.lpSockaddr->sa_family == AF_INET) {
SOCKADDR_IN* sa_in = (SOCKADDR_IN *)pUnicast->Address.lpSockaddr;
ws_inet_ntop4(&(sa_in->sin_addr), ip, iplen);
if (!g_strcmp0(ip, "127.0.0.1"))
continue;
if (*ip)
interfaces = g_slist_prepend(interfaces, g_strdup(ip));
}
if (pUnicast->Address.lpSockaddr->sa_family == AF_INET6) {
SOCKADDR_IN6* sa_in6 = (SOCKADDR_IN6 *)pUnicast->Address.lpSockaddr;
ws_inet_ntop6(&(sa_in6->sin6_addr), ip, iplen);
if (!g_strcmp0(ip, "::1"))
continue;
if (*ip)
interfaces = g_slist_prepend(interfaces, g_strdup(ip));
}
}
pCurrAddresses = pCurrAddresses->Next;
}
end:
g_free(pAddresses);
return interfaces;
}
#endif /* _WIN32 */
GSList* local_interfaces_to_list(void)
{
#if defined(_WIN32)
return local_interfaces_to_list_win();
#elif defined(HAVE_GETIFADDRS)
return local_interfaces_to_list_nix();
#else
return NULL;
#endif
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=4 tabstop=8 noexpandtab:
* :indentSize=4:tabSize=8:noTabs=false:
*/
|
