1/*- 2 * hccontrol.c 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $Id: hccontrol.c,v 1.5 2003/09/05 00:38:24 max Exp $ 31 */ 32 33#define L2CAP_SOCKET_CHECKED 34#include <bluetooth.h> 35#include <sys/ioctl.h> 36#include <sys/param.h> 37#include <sys/sysctl.h> 38#include <assert.h> 39#include <err.h> 40#include <errno.h> 41#include <netgraph/ng_message.h> 42#include <stdio.h> 43#include <stdlib.h> 44#include <string.h> 45#include <unistd.h> 46#include "hccontrol.h" 47 48/* Prototypes */ 49static int do_hci_command (char const *, int, char **); 50static struct hci_command * find_hci_command (char const *, struct hci_command *); 51static int find_hci_nodes (struct nodeinfo **); 52static void print_hci_command (struct hci_command *); 53static void usage (void); 54 55/* Globals */ 56int verbose = 0; 57int timeout; 58int numeric_bdaddr = 0; 59 60/* Main */ 61int 62main(int argc, char *argv[]) 63{ 64 char *node = NULL; 65 int n; 66 67 /* Process command line arguments */ 68 while ((n = getopt(argc, argv, "n:Nvh")) != -1) { 69 switch (n) { 70 case 'n': 71 node = optarg; 72 break; 73 74 case 'N': 75 numeric_bdaddr = 1; 76 break; 77 78 case 'v': 79 verbose = 1; 80 break; 81 82 case 'h': 83 default: 84 usage(); 85 } 86 } 87 88 argc -= optind; 89 argv += optind; 90 91 if (*argv == NULL) 92 usage(); 93 94 n = do_hci_command(node, argc, argv); 95 96 return (n); 97} /* main */ 98 99/* Create socket and bind it */ 100static int 101socket_open(char const *node) 102{ 103 struct sockaddr_hci addr; 104 struct ng_btsocket_hci_raw_filter filter; 105 int s, mib[4], num; 106 size_t size; 107 struct nodeinfo *nodes; 108 char *lnode = NULL; 109 110 num = find_hci_nodes(&nodes); 111 if (num == 0) 112 errx(7, "Could not find HCI nodes"); 113 114 if (node == NULL) { 115 node = lnode = strdup(nodes[0].name); 116 if (num > 1) 117 fprintf(stdout, "Using HCI node: %s\n", node); 118 } 119 120 free(nodes); 121 122 s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_HCI); 123 if (s < 0) 124 err(1, "Could not create socket"); 125 126 memset(&addr, 0, sizeof(addr)); 127 addr.hci_len = sizeof(addr); 128 addr.hci_family = AF_BLUETOOTH; 129 strncpy(addr.hci_node, node, sizeof(addr.hci_node)); 130 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) 131 err(2, "Could not bind socket, node=%s", node); 132 133 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) 134 err(3, "Could not connect socket, node=%s", node); 135 136 free(lnode); 137 memset(&filter, 0, sizeof(filter)); 138 bit_set(filter.event_mask, NG_HCI_EVENT_COMMAND_COMPL - 1); 139 bit_set(filter.event_mask, NG_HCI_EVENT_COMMAND_STATUS - 1); 140 bit_set(filter.event_mask, NG_HCI_EVENT_INQUIRY_COMPL - 1); 141 bit_set(filter.event_mask, NG_HCI_EVENT_INQUIRY_RESULT - 1); 142 bit_set(filter.event_mask, NG_HCI_EVENT_CON_COMPL - 1); 143 bit_set(filter.event_mask, NG_HCI_EVENT_DISCON_COMPL - 1); 144 bit_set(filter.event_mask, NG_HCI_EVENT_REMOTE_NAME_REQ_COMPL - 1); 145 bit_set(filter.event_mask, NG_HCI_EVENT_READ_REMOTE_FEATURES_COMPL - 1); 146 bit_set(filter.event_mask, NG_HCI_EVENT_READ_REMOTE_VER_INFO_COMPL - 1); 147 bit_set(filter.event_mask, NG_HCI_EVENT_RETURN_LINK_KEYS - 1); 148 bit_set(filter.event_mask, NG_HCI_EVENT_READ_CLOCK_OFFSET_COMPL - 1); 149 bit_set(filter.event_mask, NG_HCI_EVENT_CON_PKT_TYPE_CHANGED - 1); 150 bit_set(filter.event_mask, NG_HCI_EVENT_ROLE_CHANGE - 1); 151 bit_set(filter.event_mask, NG_HCI_EVENT_LE -1); 152 153 if (setsockopt(s, SOL_HCI_RAW, SO_HCI_RAW_FILTER, 154 (void * const) &filter, sizeof(filter)) < 0) 155 err(4, "Could not setsockopt()"); 156 157 size = nitems(mib); 158 if (sysctlnametomib("net.bluetooth.hci.command_timeout",mib,&size) < 0) 159 err(5, "Could not sysctlnametomib()"); 160 161 if (sysctl(mib, nitems(mib), 162 (void *) &timeout, &size, NULL, 0) < 0) 163 err(6, "Could not sysctl()"); 164 165 timeout ++; 166 167 return (s); 168} /* socket_open */ 169 170/* Execute commands */ 171static int 172do_hci_command(char const *node, int argc, char **argv) 173{ 174 char *cmd = argv[0]; 175 struct hci_command *c = NULL; 176 int s, e, help; 177 178 help = 0; 179 if (strcasecmp(cmd, "help") == 0) { 180 argc --; 181 argv ++; 182 183 if (argc <= 0) { 184 fprintf(stdout, "Supported commands:\n"); 185 print_hci_command(link_control_commands); 186 print_hci_command(link_policy_commands); 187 print_hci_command(host_controller_baseband_commands); 188 print_hci_command(info_commands); 189 print_hci_command(status_commands); 190 print_hci_command(le_commands); 191 print_hci_command(node_commands); 192 fprintf(stdout, "\nFor more information use " \ 193 "'help command'\n"); 194 195 return (OK); 196 } 197 198 help = 1; 199 cmd = argv[0]; 200 } 201 202 c = find_hci_command(cmd, link_control_commands); 203 if (c != NULL) 204 goto execute; 205 206 c = find_hci_command(cmd, link_policy_commands); 207 if (c != NULL) 208 goto execute; 209 210 c = find_hci_command(cmd, host_controller_baseband_commands); 211 if (c != NULL) 212 goto execute; 213 214 c = find_hci_command(cmd, info_commands); 215 if (c != NULL) 216 goto execute; 217 218 c = find_hci_command(cmd, status_commands); 219 if (c != NULL) 220 goto execute; 221 222 c = find_hci_command(cmd, le_commands); 223 if (c != NULL) 224 goto execute; 225 226 227 c = find_hci_command(cmd, node_commands); 228 if (c == NULL) { 229 fprintf(stdout, "Unknown command: \"%s\"\n", cmd); 230 return (ERROR); 231 } 232execute: 233 if (!help) { 234 s = socket_open(node); 235 e = (c->handler)(s, -- argc, ++ argv); 236 close(s); 237 } else 238 e = USAGE; 239 240 switch (e) { 241 case OK: 242 case FAILED: 243 break; 244 245 case ERROR: 246 fprintf(stdout, "Could not execute command \"%s\". %s\n", 247 cmd, strerror(errno)); 248 break; 249 250 case USAGE: 251 fprintf(stdout, "Usage: %s\n%s\n", c->command, c->description); 252 break; 253 254 default: assert(0); break; 255 } 256 257 258 return (e); 259} /* do_hci_command */ 260 261/* Try to find command in specified category */ 262static struct hci_command * 263find_hci_command(char const *command, struct hci_command *category) 264{ 265 struct hci_command *c = NULL; 266 267 for (c = category; c->command != NULL; c++) { 268 char *c_end = strchr(c->command, ' '); 269 270 if (c_end != NULL) { 271 int len = c_end - c->command; 272 273 if (strncasecmp(command, c->command, len) == 0) 274 return (c); 275 } else if (strcasecmp(command, c->command) == 0) 276 return (c); 277 } 278 279 return (NULL); 280} /* find_hci_command */ 281 282/* Find all HCI nodes */ 283static int 284find_hci_nodes(struct nodeinfo** nodes) 285{ 286 struct ng_btsocket_hci_raw_node_list_names r; 287 struct sockaddr_hci addr; 288 int s; 289 const char * node = "ubt0hci"; 290 291 r.num_names = MAX_NODE_NUM; 292 r.names = (struct nodeinfo*)calloc(MAX_NODE_NUM, sizeof(struct nodeinfo)); 293 if (r.names == NULL) 294 err(8, "Could not allocate memory"); 295 296 s = socket(PF_BLUETOOTH, SOCK_RAW, BLUETOOTH_PROTO_HCI); 297 if (s < 0) 298 err(9, "Could not create socket"); 299 300 memset(&addr, 0, sizeof(addr)); 301 addr.hci_len = sizeof(addr); 302 addr.hci_family = AF_BLUETOOTH; 303 strncpy(addr.hci_node, node, sizeof(addr.hci_node)); 304 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) 305 err(10, "Could not bind socket"); 306 307 if (ioctl(s, SIOC_HCI_RAW_NODE_LIST_NAMES, &r, sizeof(r)) < 0) 308 err(11, "Could not get list of HCI nodes"); 309 310 close(s); 311 312 *nodes = r.names; 313 314 return (r.num_names); 315} /* find_hci_nodes */ 316 317/* Print commands in specified category */ 318static void 319print_hci_command(struct hci_command *category) 320{ 321 struct hci_command *c = NULL; 322 323 for (c = category; c->command != NULL; c++) 324 fprintf(stdout, "\t%s\n", c->command); 325} /* print_hci_command */ 326 327/* Usage */ 328static void 329usage(void) 330{ 331 fprintf(stdout, "Usage: hccontrol [-hN] [-n HCI_node_name] cmd [p1] [..]\n"); 332 exit(255); 333} /* usage */ 334 335