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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 | * | |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
6fc6879b JM |
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 | ||
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 | ||
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 | ||
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 | ||
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 | ||
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 | ||
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 | } |