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6fc6879b JM |
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 program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * Alternatively, this software may be distributed under the terms of BSD | |
10 | * license. | |
11 | * | |
12 | * See README and COPYING for more details. | |
13 | * | |
14 | * This small tool is for the Windows build to provide an easy way of fetching | |
15 | * a list of available network interfaces. | |
16 | */ | |
17 | ||
18 | #include "includes.h" | |
19 | #include <stdio.h> | |
20 | #ifdef CONFIG_USE_NDISUIO | |
21 | #include <winsock2.h> | |
22 | #include <ntddndis.h> | |
23 | #else /* CONFIG_USE_NDISUIO */ | |
24 | #include "pcap.h" | |
25 | #include <winsock.h> | |
26 | #endif /* CONFIG_USE_NDISUIO */ | |
27 | ||
28 | #ifdef CONFIG_USE_NDISUIO | |
29 | ||
30 | /* from nuiouser.h */ | |
31 | #define FSCTL_NDISUIO_BASE FILE_DEVICE_NETWORK | |
32 | ||
33 | #define _NDISUIO_CTL_CODE(_Function, _Method, _Access) \ | |
34 | CTL_CODE(FSCTL_NDISUIO_BASE, _Function, _Method, _Access) | |
35 | ||
36 | #define IOCTL_NDISUIO_QUERY_BINDING \ | |
37 | _NDISUIO_CTL_CODE(0x203, METHOD_BUFFERED, \ | |
38 | FILE_READ_ACCESS | FILE_WRITE_ACCESS) | |
39 | ||
40 | #define IOCTL_NDISUIO_BIND_WAIT \ | |
41 | _NDISUIO_CTL_CODE(0x204, METHOD_BUFFERED, \ | |
42 | FILE_READ_ACCESS | FILE_WRITE_ACCESS) | |
43 | ||
44 | typedef struct _NDISUIO_QUERY_BINDING | |
45 | { | |
46 | ULONG BindingIndex; | |
47 | ULONG DeviceNameOffset; | |
48 | ULONG DeviceNameLength; | |
49 | ULONG DeviceDescrOffset; | |
50 | ULONG DeviceDescrLength; | |
51 | } NDISUIO_QUERY_BINDING, *PNDISUIO_QUERY_BINDING; | |
52 | ||
53 | ||
54 | static HANDLE ndisuio_open(void) | |
55 | { | |
56 | DWORD written; | |
57 | HANDLE h; | |
58 | ||
59 | h = CreateFile(TEXT("\\\\.\\\\Ndisuio"), | |
60 | GENERIC_READ | GENERIC_WRITE, 0, NULL, | |
61 | OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, | |
62 | INVALID_HANDLE_VALUE); | |
63 | if (h == INVALID_HANDLE_VALUE) | |
64 | return h; | |
65 | ||
66 | #ifndef _WIN32_WCE | |
67 | if (!DeviceIoControl(h, IOCTL_NDISUIO_BIND_WAIT, NULL, 0, NULL, 0, | |
68 | &written, NULL)) { | |
69 | printf("IOCTL_NDISUIO_BIND_WAIT failed: %d", | |
70 | (int) GetLastError()); | |
71 | CloseHandle(h); | |
72 | return INVALID_HANDLE_VALUE; | |
73 | } | |
74 | #endif /* _WIN32_WCE */ | |
75 | ||
76 | return h; | |
77 | } | |
78 | ||
79 | ||
80 | static void ndisuio_query_bindings(HANDLE ndisuio) | |
81 | { | |
82 | NDISUIO_QUERY_BINDING *b; | |
83 | size_t blen = sizeof(*b) + 1024; | |
84 | int i, error; | |
85 | DWORD written; | |
86 | char name[256], desc[256]; | |
87 | WCHAR *pos; | |
88 | size_t j, len; | |
89 | ||
90 | b = malloc(blen); | |
91 | if (b == NULL) | |
92 | return; | |
93 | ||
94 | for (i = 0; ; i++) { | |
95 | memset(b, 0, blen); | |
96 | b->BindingIndex = i; | |
97 | if (!DeviceIoControl(ndisuio, IOCTL_NDISUIO_QUERY_BINDING, | |
98 | b, sizeof(NDISUIO_QUERY_BINDING), b, | |
99 | (DWORD) blen, &written, NULL)) { | |
100 | error = (int) GetLastError(); | |
101 | if (error == ERROR_NO_MORE_ITEMS) | |
102 | break; | |
103 | printf("IOCTL_NDISUIO_QUERY_BINDING failed: %d", | |
104 | error); | |
105 | break; | |
106 | } | |
107 | ||
108 | pos = (WCHAR *) ((char *) b + b->DeviceNameOffset); | |
109 | len = b->DeviceNameLength; | |
110 | if (len >= sizeof(name)) | |
111 | len = sizeof(name) - 1; | |
112 | for (j = 0; j < len; j++) | |
113 | name[j] = (char) pos[j]; | |
114 | name[len] = '\0'; | |
115 | ||
116 | pos = (WCHAR *) ((char *) b + b->DeviceDescrOffset); | |
117 | len = b->DeviceDescrLength; | |
118 | if (len >= sizeof(desc)) | |
119 | len = sizeof(desc) - 1; | |
120 | for (j = 0; j < len; j++) | |
121 | desc[j] = (char) pos[j]; | |
122 | desc[len] = '\0'; | |
123 | ||
124 | printf("ifname: %s\ndescription: %s\n\n", name, desc); | |
125 | } | |
126 | ||
127 | free(b); | |
128 | } | |
129 | ||
130 | ||
131 | static void ndisuio_enum_bindings(void) | |
132 | { | |
133 | HANDLE ndisuio = ndisuio_open(); | |
134 | if (ndisuio == INVALID_HANDLE_VALUE) | |
135 | return; | |
136 | ||
137 | ndisuio_query_bindings(ndisuio); | |
138 | CloseHandle(ndisuio); | |
139 | } | |
140 | ||
141 | #else /* CONFIG_USE_NDISUIO */ | |
142 | ||
143 | static void show_dev(pcap_if_t *dev) | |
144 | { | |
145 | printf("ifname: %s\ndescription: %s\n\n", | |
146 | dev->name, dev->description); | |
147 | } | |
148 | ||
149 | ||
150 | static void pcap_enum_devs(void) | |
151 | { | |
152 | pcap_if_t *devs, *dev; | |
153 | char err[PCAP_ERRBUF_SIZE + 1]; | |
154 | ||
155 | if (pcap_findalldevs(&devs, err) < 0) { | |
156 | fprintf(stderr, "Error - pcap_findalldevs: %s\n", err); | |
157 | return; | |
158 | } | |
159 | ||
160 | for (dev = devs; dev; dev = dev->next) { | |
161 | show_dev(dev); | |
162 | } | |
163 | ||
164 | pcap_freealldevs(devs); | |
165 | } | |
166 | ||
167 | #endif /* CONFIG_USE_NDISUIO */ | |
168 | ||
169 | ||
170 | int main(int argc, char *argv[]) | |
171 | { | |
172 | #ifdef CONFIG_USE_NDISUIO | |
173 | ndisuio_enum_bindings(); | |
174 | #else /* CONFIG_USE_NDISUIO */ | |
175 | pcap_enum_devs(); | |
176 | #endif /* CONFIG_USE_NDISUIO */ | |
177 | ||
178 | return 0; | |
179 | } |