1 /*
2 * hccontrol.c
3 *
4 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $Id: hccontrol.c,v 1.5 2003/09/05 00:38:24 max Exp $
29 * $FreeBSD$
30 */
31
32 #include <bluetooth.h>
33 #include <sys/ioctl.h>
34 #include <sys/sysctl.h>
35 #include <assert.h>
36 #include <err.h>
37 #include <errno.h>
38 #include <netgraph/ng_message.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <unistd.h>
43 #include "hccontrol.h"
44
45 /* Prototypes */
46 static int do_hci_command (char const *, int, char **);
47 static struct hci_command * find_hci_command (char const *, struct hci_command *);
48 static int find_hci_nodes (struct nodeinfo **);
49 static void print_hci_command (struct hci_command *);
50 static void usage (void);
51
52 /* Globals */
53 int verbose = 0;
54 int timeout;
55 int numeric_bdaddr = 0;
56
57 /* Main */
58 int
main(int argc,char * argv[])59 main(int argc, char *argv[])
60 {
61 char *node = NULL;
62 int n;
63
64 /* Process command line arguments */
65 while ((n = getopt(argc, argv, "n:Nvh")) != -1) {
66 switch (n) {
67 case 'n':
68 node = optarg;
69 break;
70
71 case 'N':
72 numeric_bdaddr = 1;
73 break;
74
75 case 'v':
76 verbose = 1;
77 break;
78
79 case 'h':
80 default:
81 usage();
82 }
83 }
84
85 argc -= optind;
86 argv += optind;
87
88 if (*argv == NULL)
89 usage();
90
91 n = do_hci_command(node, argc, argv);
92
93 return (n);
94 } /* main */
95
96 /* Create socket and bind it */
97 static int
socket_open(char const * node)98 socket_open(char const *node)
99 {
100 struct sockaddr_hci addr;
101 struct ng_btsocket_hci_raw_filter filter;
102 int s, mib[4], num;
103 size_t size;
104 struct nodeinfo *nodes;
105
106 num = find_hci_nodes(&nodes);
107 if (num == 0)
108 errx(7, "Could not find HCI nodes");
109
110 if (node == NULL) {
111 node = strdup(nodes[0].name);
112 if (num > 1)
113 fprintf(stdout, "Using HCI node: %s\n", node);
114 }
115
116 free(nodes);
117
118 s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_HCI);
119 if (s < 0)
120 err(1, "Could not create socket");
121
122 memset(&addr, 0, sizeof(addr));
123 addr.hci_len = sizeof(addr);
124 addr.hci_family = AF_BLUETOOTH;
125 strncpy(addr.hci_node, node, sizeof(addr.hci_node));
126 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0)
127 err(2, "Could not bind socket, node=%s", node);
128
129 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0)
130 err(3, "Could not connect socket, node=%s", node);
131
132 memset(&filter, 0, sizeof(filter));
133 bit_set(filter.event_mask, NG_HCI_EVENT_COMMAND_COMPL - 1);
134 bit_set(filter.event_mask, NG_HCI_EVENT_COMMAND_STATUS - 1);
135 bit_set(filter.event_mask, NG_HCI_EVENT_INQUIRY_COMPL - 1);
136 bit_set(filter.event_mask, NG_HCI_EVENT_INQUIRY_RESULT - 1);
137 bit_set(filter.event_mask, NG_HCI_EVENT_CON_COMPL - 1);
138 bit_set(filter.event_mask, NG_HCI_EVENT_DISCON_COMPL - 1);
139 bit_set(filter.event_mask, NG_HCI_EVENT_REMOTE_NAME_REQ_COMPL - 1);
140 bit_set(filter.event_mask, NG_HCI_EVENT_READ_REMOTE_FEATURES_COMPL - 1);
141 bit_set(filter.event_mask, NG_HCI_EVENT_READ_REMOTE_VER_INFO_COMPL - 1);
142 bit_set(filter.event_mask, NG_HCI_EVENT_RETURN_LINK_KEYS - 1);
143 bit_set(filter.event_mask, NG_HCI_EVENT_READ_CLOCK_OFFSET_COMPL - 1);
144 bit_set(filter.event_mask, NG_HCI_EVENT_CON_PKT_TYPE_CHANGED - 1);
145 bit_set(filter.event_mask, NG_HCI_EVENT_ROLE_CHANGE - 1);
146
147 if (setsockopt(s, SOL_HCI_RAW, SO_HCI_RAW_FILTER,
148 (void * const) &filter, sizeof(filter)) < 0)
149 err(4, "Could not setsockopt()");
150
151 size = (sizeof(mib)/sizeof(mib[0]));
152 if (sysctlnametomib("net.bluetooth.hci.command_timeout",mib,&size) < 0)
153 err(5, "Could not sysctlnametomib()");
154
155 if (sysctl(mib, sizeof(mib)/sizeof(mib[0]),
156 (void *) &timeout, &size, NULL, 0) < 0)
157 err(6, "Could not sysctl()");
158
159 timeout ++;
160
161 return (s);
162 } /* socket_open */
163
164 /* Execute commands */
165 static int
do_hci_command(char const * node,int argc,char ** argv)166 do_hci_command(char const *node, int argc, char **argv)
167 {
168 char *cmd = argv[0];
169 struct hci_command *c = NULL;
170 int s, e, help;
171
172 help = 0;
173 if (strcasecmp(cmd, "help") == 0) {
174 argc --;
175 argv ++;
176
177 if (argc <= 0) {
178 fprintf(stdout, "Supported commands:\n");
179 print_hci_command(link_control_commands);
180 print_hci_command(link_policy_commands);
181 print_hci_command(host_controller_baseband_commands);
182 print_hci_command(info_commands);
183 print_hci_command(status_commands);
184 print_hci_command(node_commands);
185 fprintf(stdout, "\nFor more information use " \
186 "'help command'\n");
187
188 return (OK);
189 }
190
191 help = 1;
192 cmd = argv[0];
193 }
194
195 c = find_hci_command(cmd, link_control_commands);
196 if (c != NULL)
197 goto execute;
198
199 c = find_hci_command(cmd, link_policy_commands);
200 if (c != NULL)
201 goto execute;
202
203 c = find_hci_command(cmd, host_controller_baseband_commands);
204 if (c != NULL)
205 goto execute;
206
207 c = find_hci_command(cmd, info_commands);
208 if (c != NULL)
209 goto execute;
210
211 c = find_hci_command(cmd, status_commands);
212 if (c != NULL)
213 goto execute;
214
215 c = find_hci_command(cmd, node_commands);
216 if (c == NULL) {
217 fprintf(stdout, "Unknown command: \"%s\"\n", cmd);
218 return (ERROR);
219 }
220 execute:
221 if (!help) {
222 s = socket_open(node);
223 e = (c->handler)(s, -- argc, ++ argv);
224 close(s);
225 } else
226 e = USAGE;
227
228 switch (e) {
229 case OK:
230 case FAILED:
231 break;
232
233 case ERROR:
234 fprintf(stdout, "Could not execute command \"%s\". %s\n",
235 cmd, strerror(errno));
236 break;
237
238 case USAGE:
239 fprintf(stdout, "Usage: %s\n%s\n", c->command, c->description);
240 break;
241
242 default: assert(0); break;
243 }
244
245
246 return (e);
247 } /* do_hci_command */
248
249 /* Try to find command in specified category */
250 static struct hci_command *
find_hci_command(char const * command,struct hci_command * category)251 find_hci_command(char const *command, struct hci_command *category)
252 {
253 struct hci_command *c = NULL;
254
255 for (c = category; c->command != NULL; c++) {
256 char *c_end = strchr(c->command, ' ');
257
258 if (c_end != NULL) {
259 int len = c_end - c->command;
260
261 if (strncasecmp(command, c->command, len) == 0)
262 return (c);
263 } else if (strcasecmp(command, c->command) == 0)
264 return (c);
265 }
266
267 return (NULL);
268 } /* find_hci_command */
269
270 /* Find all HCI nodes */
271 static int
find_hci_nodes(struct nodeinfo ** nodes)272 find_hci_nodes(struct nodeinfo** nodes)
273 {
274 struct ng_btsocket_hci_raw_node_list_names r;
275 struct sockaddr_hci addr;
276 int s;
277 const char * node = "ubt0hci";
278
279 r.num_names = MAX_NODE_NUM;
280 r.names = (struct nodeinfo*)calloc(MAX_NODE_NUM, sizeof(struct nodeinfo));
281 if (r.names == NULL)
282 err(8, "Could not allocate memory");
283
284 s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_HCI);
285 if (s < 0)
286 err(9, "Could not create socket");
287
288 memset(&addr, 0, sizeof(addr));
289 addr.hci_len = sizeof(addr);
290 addr.hci_family = AF_BLUETOOTH;
291 strncpy(addr.hci_node, node, sizeof(addr.hci_node));
292 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0)
293 err(10, "Could not bind socket");
294
295 if (ioctl(s, SIOC_HCI_RAW_NODE_LIST_NAMES, &r, sizeof(r)) < 0)
296 err(11, "Could not get list of HCI nodes");
297
298 close(s);
299
300 *nodes = r.names;
301
302 return (r.num_names);
303 } /* find_hci_nodes */
304
305 /* Print commands in specified category */
306 static void
print_hci_command(struct hci_command * category)307 print_hci_command(struct hci_command *category)
308 {
309 struct hci_command *c = NULL;
310
311 for (c = category; c->command != NULL; c++)
312 fprintf(stdout, "\t%s\n", c->command);
313 } /* print_hci_command */
314
315 /* Usage */
316 static void
usage(void)317 usage(void)
318 {
319 fprintf(stdout, "Usage: hccontrol [-hN] [-n HCI_node_name] cmd [p1] [..]\n");
320 exit(255);
321 } /* usage */
322
323