1 /*
2 * win_if_list - Display network interfaces with description (for Windows)
3 * Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 *
8 * This small tool is for the Windows build to provide an easy way of fetching
9 * a list of available network interfaces.
10 */
11
12 #include "includes.h"
13 #include <stdio.h>
14 #ifdef CONFIG_USE_NDISUIO
15 #include <winsock2.h>
16 #include <ntddndis.h>
17 #else /* CONFIG_USE_NDISUIO */
18 #include "pcap.h"
19 #include <winsock.h>
20 #endif /* CONFIG_USE_NDISUIO */
21
22 #ifdef CONFIG_USE_NDISUIO
23
24 /* from nuiouser.h */
25 #define FSCTL_NDISUIO_BASE FILE_DEVICE_NETWORK
26
27 #define _NDISUIO_CTL_CODE(_Function, _Method, _Access) \
28 CTL_CODE(FSCTL_NDISUIO_BASE, _Function, _Method, _Access)
29
30 #define IOCTL_NDISUIO_QUERY_BINDING \
31 _NDISUIO_CTL_CODE(0x203, METHOD_BUFFERED, \
32 FILE_READ_ACCESS | FILE_WRITE_ACCESS)
33
34 #define IOCTL_NDISUIO_BIND_WAIT \
35 _NDISUIO_CTL_CODE(0x204, METHOD_BUFFERED, \
36 FILE_READ_ACCESS | FILE_WRITE_ACCESS)
37
38 typedef struct _NDISUIO_QUERY_BINDING
39 {
40 ULONG BindingIndex;
41 ULONG DeviceNameOffset;
42 ULONG DeviceNameLength;
43 ULONG DeviceDescrOffset;
44 ULONG DeviceDescrLength;
45 } NDISUIO_QUERY_BINDING, *PNDISUIO_QUERY_BINDING;
46
47
ndisuio_open(void)48 static HANDLE ndisuio_open(void)
49 {
50 DWORD written;
51 HANDLE h;
52
53 h = CreateFile(TEXT("\\\\.\\\\Ndisuio"),
54 GENERIC_READ | GENERIC_WRITE, 0, NULL,
55 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
56 INVALID_HANDLE_VALUE);
57 if (h == INVALID_HANDLE_VALUE)
58 return h;
59
60 #ifndef _WIN32_WCE
61 if (!DeviceIoControl(h, IOCTL_NDISUIO_BIND_WAIT, NULL, 0, NULL, 0,
62 &written, NULL)) {
63 printf("IOCTL_NDISUIO_BIND_WAIT failed: %d",
64 (int) GetLastError());
65 CloseHandle(h);
66 return INVALID_HANDLE_VALUE;
67 }
68 #endif /* _WIN32_WCE */
69
70 return h;
71 }
72
73
ndisuio_query_bindings(HANDLE ndisuio)74 static void ndisuio_query_bindings(HANDLE ndisuio)
75 {
76 NDISUIO_QUERY_BINDING *b;
77 size_t blen = sizeof(*b) + 1024;
78 int i, error;
79 DWORD written;
80 char name[256], desc[256];
81 WCHAR *pos;
82 size_t j, len;
83
84 b = malloc(blen);
85 if (b == NULL)
86 return;
87
88 for (i = 0; ; i++) {
89 memset(b, 0, blen);
90 b->BindingIndex = i;
91 if (!DeviceIoControl(ndisuio, IOCTL_NDISUIO_QUERY_BINDING,
92 b, sizeof(NDISUIO_QUERY_BINDING), b,
93 (DWORD) blen, &written, NULL)) {
94 error = (int) GetLastError();
95 if (error == ERROR_NO_MORE_ITEMS)
96 break;
97 printf("IOCTL_NDISUIO_QUERY_BINDING failed: %d",
98 error);
99 break;
100 }
101
102 pos = (WCHAR *) ((char *) b + b->DeviceNameOffset);
103 len = b->DeviceNameLength;
104 if (len >= sizeof(name))
105 len = sizeof(name) - 1;
106 for (j = 0; j < len; j++)
107 name[j] = (char) pos[j];
108 name[len] = '\0';
109
110 pos = (WCHAR *) ((char *) b + b->DeviceDescrOffset);
111 len = b->DeviceDescrLength;
112 if (len >= sizeof(desc))
113 len = sizeof(desc) - 1;
114 for (j = 0; j < len; j++)
115 desc[j] = (char) pos[j];
116 desc[len] = '\0';
117
118 printf("ifname: %s\ndescription: %s\n\n", name, desc);
119 }
120
121 free(b);
122 }
123
124
ndisuio_enum_bindings(void)125 static void ndisuio_enum_bindings(void)
126 {
127 HANDLE ndisuio = ndisuio_open();
128 if (ndisuio == INVALID_HANDLE_VALUE)
129 return;
130
131 ndisuio_query_bindings(ndisuio);
132 CloseHandle(ndisuio);
133 }
134
135 #else /* CONFIG_USE_NDISUIO */
136
show_dev(pcap_if_t * dev)137 static void show_dev(pcap_if_t *dev)
138 {
139 printf("ifname: %s\ndescription: %s\n\n",
140 dev->name, dev->description);
141 }
142
143
pcap_enum_devs(void)144 static void pcap_enum_devs(void)
145 {
146 pcap_if_t *devs, *dev;
147 char err[PCAP_ERRBUF_SIZE + 1];
148
149 if (pcap_findalldevs(&devs, err) < 0) {
150 fprintf(stderr, "Error - pcap_findalldevs: %s\n", err);
151 return;
152 }
153
154 for (dev = devs; dev; dev = dev->next) {
155 show_dev(dev);
156 }
157
158 pcap_freealldevs(devs);
159 }
160
161 #endif /* CONFIG_USE_NDISUIO */
162
163
main(int argc,char * argv[])164 int main(int argc, char *argv[])
165 {
166 #ifdef CONFIG_USE_NDISUIO
167 ndisuio_enum_bindings();
168 #else /* CONFIG_USE_NDISUIO */
169 pcap_enum_devs();
170 #endif /* CONFIG_USE_NDISUIO */
171
172 return 0;
173 }
174
