diff options
Diffstat (limited to 'hcid/main.c')
| -rw-r--r-- | hcid/main.c | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/hcid/main.c b/hcid/main.c new file mode 100644 index 00000000..5b3c3d30 --- /dev/null +++ b/hcid/main.c @@ -0,0 +1,430 @@ +/* + BlueZ - Bluetooth protocol stack for Linux + Copyright (C) 2000-2001 Qualcomm Incorporated + + Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation; + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. + IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM, + OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER + RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE + USE OR PERFORMANCE OF THIS SOFTWARE. + + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS, + TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. +*/ +/* + * $Id$ + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <signal.h> +#include <fcntl.h> +#include <syslog.h> +#include <errno.h> +#include <time.h> +#include <fcntl.h> + +#include <sys/ioctl.h> +#include <sys/socket.h> +#include <sys/time.h> +#include <asm/types.h> + +#include <bluetooth.h> +#include <hci.h> +#include <hci_lib.h> + +#include <glib.h> + +#include "hcid.h" +#include "lib.h" + +#define VERSION "1.1" + +struct hcid_opts hcid; +struct device_opts devi; + +static GMainLoop *event_loop; + +gboolean io_stack_event(GIOChannel *chan, GIOCondition cond, gpointer data); +gboolean io_security_event(GIOChannel *chan, GIOCondition cond, gpointer data); + +static void usage(void) +{ + printf("hcid - HCI daemon ver %s\n", VERSION); + printf("Usage: \n"); + printf("\thcid [-n not_daemon] [-f config file]\n"); +} + +static void init_device(int hdev) +{ + struct hci_dev_req dr; + int s; + + /* Do initialization in the separate process */ + switch (fork()) { + case 0: + break; + case -1: + syslog(LOG_ERR, "Fork failed. Can't init device hci%d. %s(%d)\n", + hdev, strerror(errno), errno); + default: + return; + } + + set_title("hci%d init", hdev); + + if ((s = hci_open_dev(hdev)) < 0) { + syslog(LOG_ERR, "Can't open device hci%d. %s(%d)\n", hdev, strerror(errno), errno); + exit(1); + } + + /* Start HCI device */ + if (ioctl(s, HCIDEVUP, hdev) < 0 && errno != EALREADY) { + syslog(LOG_ERR, "Can't init device hci%d. %s(%d)\n", hdev, + strerror(errno), errno); + exit(1); + } + + dr.dev_id = hdev; + + /* Set packet type */ + if (devi.pkt_type) { + dr.dev_opt = devi.pkt_type; + if (ioctl(s, HCISETPTYPE, (unsigned long)&dr) < 0) { + syslog(LOG_ERR, "Can't set packet type on hci%d. %s(%d)\n", + hdev, strerror(errno), errno); + } + } + + /* Set link mode */ + if (devi.link_mode) { + dr.dev_opt = devi.link_mode; + if (ioctl(s, HCISETLINKMODE, (unsigned long)&dr) < 0) { + syslog(LOG_ERR, "Can't set link mode on hci%d. %s(%d)\n", + hdev, strerror(errno), errno); + } + } + + /* Set link policy */ + if (devi.link_policy) { + dr.dev_opt = devi.link_policy; + if (ioctl(s, HCISETLINKPOL, (unsigned long)&dr) < 0) { + syslog(LOG_ERR, "Can't set link policy on hci%d. %s(%d)\n", + hdev, strerror(errno), errno); + } + } + + /* Set scan mode */ + dr.dev_opt = devi.scan; + if (ioctl(s, HCISETSCAN, (unsigned long)&dr) < 0) { + syslog(LOG_ERR, "Can't set scan mode on hci%d. %s(%d)\n", + hdev, strerror(errno), errno); + } + + /* Set authentication */ + if (devi.auth) + dr.dev_opt = AUTH_ENABLED; + else + dr.dev_opt = AUTH_DISABLED; + + if (ioctl(s, HCISETAUTH, (unsigned long)&dr) < 0) { + syslog(LOG_ERR, "Can't set auth on hci%d. %s(%d)\n", + hdev, strerror(errno), errno); + } + + /* Set encryption */ + if (devi.encrypt) + dr.dev_opt = ENCRYPT_P2P; + else + dr.dev_opt = ENCRYPT_DISABLED; + + if (ioctl(s, HCISETENCRYPT, (unsigned long)&dr) < 0) { + syslog(LOG_ERR, "Can't set encrypt on hci%d. %s(%d)\n", + hdev, strerror(errno), errno); + } + + /* Set device class */ + if (devi.class) { + uint32_t class = htobl(devi.class); + write_class_of_dev_cp cp; + + memcpy(cp.dev_class, &class, 3); + hci_send_cmd(s, OGF_HOST_CTL, OCF_WRITE_CLASS_OF_DEV, + WRITE_CLASS_OF_DEV_CP_SIZE, (void *) &cp); + } + + /* Set device name */ + if (devi.name) { + change_local_name_cp cp; + expand_name(cp.name, devi.name, hdev); + + hci_send_cmd(s, OGF_HOST_CTL, OCF_CHANGE_LOCAL_NAME, + CHANGE_LOCAL_NAME_CP_SIZE, (void *) &cp); + } + + exit(0); +} + +static void init_all_devices(int ctl) +{ + struct hci_dev_list_req *dl; + struct hci_dev_req *dr; + int i; + + if (!(dl = malloc(HCI_MAX_DEV * sizeof(struct hci_dev_req) + sizeof(uint16_t)))) { + syslog(LOG_INFO, "Can't allocate devlist buffer. %s(%d)", + strerror(errno), errno); + exit(1); + } + dl->dev_num = HCI_MAX_DEV; + dr = dl->dev_req; + + if (ioctl(ctl, HCIGETDEVLIST, (void*)dl)) { + syslog(LOG_INFO, "Can't get device list. %s(%d)", + strerror(errno), errno); + exit(1); + } + + for (i=0; i < dl->dev_num; i++, dr++) { + if (hcid.auto_init) + init_device(dr->dev_id); + + if (hcid.security && (dr->dev_opt & (1<<HCI_UP))) + start_security_manager(dr->dev_id); + } + + free(dl); +} + +static void init_defaults(void) +{ + hcid.auto_init = 0; + hcid.security = 0; + + devi.pkt_type = 0; + devi.scan = SCAN_PAGE | SCAN_INQUIRY; + devi.auth = 0; + devi.encrypt = 0; +} + +static void sig_usr1(int sig) +{ + syslog(LOG_INFO, "Flushing link keys"); + flush_link_keys(); +} + +static void sig_term(int sig) +{ + syslog(LOG_INFO, "Terminating"); + g_main_quit(event_loop); + save_link_keys(); +} + +static void sig_hup(int sig) +{ + syslog(LOG_INFO, "Reloading config file"); + init_defaults(); + if (read_config(hcid.config_file) < 0) + syslog(LOG_ERR, "Config reload failed"); + + init_all_devices(hcid.sock); +} + +static inline void device_event(GIOChannel *chan, evt_stack_internal *si) +{ + evt_si_device *sd = (void *) &si->data; + + switch (sd->event) { + case HCI_DEV_REG: + syslog(LOG_INFO, "HCI dev %d registered", sd->dev_id); + if (hcid.auto_init) + init_device(sd->dev_id); + break; + + case HCI_DEV_UNREG: + syslog(LOG_INFO, "HCI dev %d unregistered", sd->dev_id); + break; + + case HCI_DEV_UP: + syslog(LOG_INFO, "HCI dev %d up", sd->dev_id); + if (hcid.security) + start_security_manager(sd->dev_id); + break; + + case HCI_DEV_DOWN: + syslog(LOG_INFO, "HCI dev %d down", sd->dev_id); + if (hcid.security) + stop_security_manager(sd->dev_id); + break; + } +} + +gboolean io_stack_event(GIOChannel *chan, GIOCondition cond, gpointer data) +{ + char buf[HCI_MAX_FRAME_SIZE], *ptr; + evt_stack_internal *si; + hci_event_hdr *eh; + int len, type; + GIOError err; + + ptr = buf; + + if ((err = g_io_channel_read(chan, buf, sizeof(buf), &len))) { + if (err == G_IO_ERROR_AGAIN) + return TRUE; + + syslog(LOG_ERR, "Read from control socket failed. %s(%d)", + strerror(errno), errno); + g_main_quit(event_loop); + return FALSE; + } + + type = *ptr++; + + if (type != HCI_EVENT_PKT) + return TRUE; + + eh = (hci_event_hdr *) ptr; + if (eh->evt != EVT_STACK_INTERNAL) + return TRUE; + + ptr += HCI_EVENT_HDR_SIZE; + + si = (evt_stack_internal *) ptr; + switch (si->type) { + case EVT_SI_DEVICE: + device_event(chan, si); + break; + } + + return TRUE; +} + +extern int optind,opterr,optopt; +extern char *optarg; + +int main(int argc, char *argv[], char *env[]) +{ + int daemon, dofork, opt, fd; + struct sockaddr_hci addr; + struct hci_filter flt; + struct sigaction sa; + GIOChannel *ctl_io; + + daemon = 1; dofork = 1; + + /* Default HCId settings */ + hcid.config_file = HCID_CONFIG_FILE; + hcid.host_name = get_host_name(); + + hcid.pin_file = strdup(HCID_PIN_FILE); + hcid.pin_helper = strdup(HCID_PIN_HELPER); + hcid.key_file = strdup(HCID_KEY_FILE); + hcid.key_num = HCID_KEY_NUM; + + init_defaults(); + + while ((opt=getopt(argc,argv,"f:n")) != EOF) { + switch(opt) { + case 'n': + daemon = 0; + break; + + case 'f': + hcid.config_file = strdup(optarg); + break; + + default: + usage(); + exit(1); + } + } + + if (daemon) { + if (dofork && fork()) + exit(0); + + /* Direct stdin,stdout,stderr to '/dev/null' */ + fd = open("/dev/null", O_RDWR); + dup2(fd, 0); dup2(fd, 1); dup2(fd, 2); + close(fd); + + setsid(); + + chdir("/"); + } + + init_title(argc, argv, env, "hcid: "); + set_title("initializing"); + + /* Start logging to syslog and stderr */ + openlog("hcid", LOG_PID | LOG_NDELAY | LOG_PERROR, LOG_DAEMON); + syslog(LOG_INFO, "HCI daemon ver %s started", VERSION); + + memset(&sa, 0, sizeof(sa)); + sa.sa_flags = SA_NOCLDSTOP; + sa.sa_handler = sig_term; + sigaction(SIGTERM, &sa, NULL); + sigaction(SIGINT, &sa, NULL); + sa.sa_handler = sig_hup; + sigaction(SIGHUP, &sa, NULL); + sa.sa_handler = sig_usr1; + sigaction(SIGUSR1, &sa, NULL); + + sa.sa_handler = SIG_IGN; + sigaction(SIGCHLD, &sa, NULL); + sigaction(SIGPIPE, &sa, NULL); + + /* Create and bind HCI socket */ + if ((hcid.sock = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI)) < 0) { + syslog(LOG_ERR, "Can't open HCI socket. %s(%d)", strerror(errno), errno); + exit(1); + } + + /* Set filter */ + hci_filter_clear(&flt); + hci_filter_set_ptype(HCI_EVENT_PKT, &flt); + hci_filter_set_event(EVT_STACK_INTERNAL, &flt); + if (setsockopt(hcid.sock, SOL_HCI, HCI_FILTER, &flt, sizeof(flt)) < 0) { + syslog(LOG_ERR, "Can't set filter. %s(%d)", strerror(errno), errno); + exit(1); + } + + addr.hci_family = AF_BLUETOOTH; + addr.hci_dev = HCI_DEV_NONE; + if (bind(hcid.sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) { + syslog(LOG_ERR, "Can't bind HCI socket. %s(%d)\n", strerror(errno), errno); + exit(1); + } + + if (read_config(hcid.config_file) < 0) + syslog(LOG_ERR, "Config load failed"); + + /* Create event loop */ + event_loop = g_main_new(FALSE); + + /* Initialize already connected devices */ + init_all_devices(hcid.sock); + + set_title("processing events"); + + ctl_io = g_io_channel_unix_new(hcid.sock); + g_io_add_watch(ctl_io, G_IO_IN, io_stack_event, NULL); + + /* Start event processor */ + g_main_run(event_loop); + + syslog(LOG_INFO, "Exit."); + return 0; +} |