/* Internal functions */
static void *
WlanEventThread(void *arg)
{
int left, ret, sd;
struct timeval tv;
socklen_t fromlen;
struct nlmsghdr *h;
fd_set readfds, tempfds;
char buf[WLAN_EVENT_SIZE_MAX];
struct sockaddr_nl from, local;
ABF_WLAN_INFO *pAbfWlanInfo = (ABF_WLAN_INFO *)arg;
ATHBT_FILTER_INFO *pInfo = pAbfWlanInfo->pInfo;
ATH_BT_FILTER_INSTANCE *pInstance = pInfo->pInstance;
A_STATUS status;
A_INFO("Starting the WLAN Event Handler task\n");
A_INFO("Checking WLAN adapter on startup .. \n");
if (!pInstance->pWlanAdapterName) {
Abf_WlanCheckSettings(pAbfWlanInfo->IfName, NULL);
if (pAbfWlanInfo->IfName[0]) {
pAbfWlanInfo->IfIndex = if_nametoindex(pAbfWlanInfo->IfName);
}
}
status = AcquireWlanAdapter(pAbfWlanInfo);
if (A_FAILED(status)) {
A_INFO("No WLAN adapter on startup (OKAY) \n");
}else {
/* Communicate this to the Filter task */
HandleAdapterEvent(pInfo, ATH_ADAPTER_ARRIVED);
A_INFO("WLAN Adapter Added\n");
}
do {
sd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sd < 0) {
A_ERR("[%s] socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE): %d\n",
__FUNCTION__, sd);
break;
}
A_MEMZERO(&local, sizeof(struct sockaddr_nl));
local.nl_family = AF_NETLINK;
local.nl_groups = RTMGRP_LINK;
if ((ret = bind(sd, (struct sockaddr *) &local, sizeof(local))) < 0) {
A_ERR("[%s] bind(netlink): %d\n", __FUNCTION__, ret);
close(sd);
break;
}
FD_ZERO(&readfds);
FD_SET(sd, &readfds);
while (pAbfWlanInfo->Loop) {
A_MEMCPY(&tempfds, &readfds, sizeof(fd_set));
tv.tv_sec = 1;
tv.tv_usec = 0;
ret = select(sd+1, &tempfds, NULL, NULL, &tv);
if ((ret < 0) && (errno != EINTR)) {
A_ERR("[%s] select failed: %d\n", __FUNCTION__, ret);
break;
} else if ((ret > 0) && (FD_ISSET(sd, &tempfds))) {
fromlen = sizeof(from);
do {
left = recvfrom(sd, buf, sizeof(buf), 0,
(struct sockaddr *) &from, &fromlen);
} while (left == -1 && errno == EINTR);
if (left < 0) {
A_ERR("[%s] recvfrom(netlink)\n", __FUNCTION__);
continue;
// break;
}
h = (struct nlmsghdr *) buf;
while (left >= sizeof(*h)) {
int len, plen;
len = h->nlmsg_len;
plen = len - sizeof(*h);
if (len > left || plen < 0) {
A_ERR("[%s] malformed netlink message\n", __FUNCTION__);
continue;
}
//A_DEBUG("RTM Message Type: %s\n",
// ((h->nlmsg_type == RTM_NEWLINK) ?
// "RTM_NEWLINK" : ((h->nlmsg_type == RTM_DELLINK) ?
// "RTM_DELLINK" : "RTM_OTHER")));
switch (h->nlmsg_type) {
case RTM_NEWLINK:
NewLinkEvent(pInstance, h, plen);
break;
case RTM_DELLINK:
DelLinkEvent(pInstance, h, plen);
break;
default:
break;
}
len = NLMSG_ALIGN(len);
left -= len;
h = (struct nlmsghdr *) ((char *) h + len);
}
}
}
close(sd);
} while (FALSE);
/* Clean up the resources allocated in this task */
A_INFO("Terminating the WLAN Event Handler task\n");
A_MUTEX_LOCK(&pAbfWlanInfo->hWaitEventLock);
pAbfWlanInfo->Loop = FALSE;
A_COND_SIGNAL(&pAbfWlanInfo->hWaitEvent);
A_MUTEX_UNLOCK(&pAbfWlanInfo->hWaitEventLock);
return NULL;
}
int
main(int argc, char *argv[])
{
int ret;
char *config_file = NULL;
int opt = 0, daemonize = 1, debug = 0, console_output=0;
progname = argv[0];
A_STATUS status;
struct sigaction sa;
ATHBT_FILTER_INFO *pInfo;
A_UINT32 btfiltFlags = 0;
A_MEMZERO(&g_AthBtFilterInstance, sizeof(ATH_BT_FILTER_INSTANCE));
/*
* Keep an option to specify the wireless extension. By default,
* assume it to be equal to WIRELESS_EXT TODO
*/
/* Get user specified options */
while ((opt = getopt(argc, argv, "bsvandczxf:w:")) != EOF) {
switch (opt) {
case 'n':
daemonize = 0;
break;
case 'd':
debug = 1;
break;
case 'f':
if (optarg) {
config_file = strdup(optarg);
}
break;
case 'c':
console_output = 1;
break;
case 'a':
btfiltFlags |= ABF_ENABLE_AFH_CHANNEL_CLASSIFICATION;
break;
case 'z':
btfiltFlags |= ABF_USE_HCI_FILTER_FOR_HEADSET_PROFILE;
break;
case 'v':
btfiltFlags |= ABF_WIFI_CHIP_IS_VENUS ;
A_DEBUG("wifi chip is venus\n");
break;
case 'x':
btfiltFlags |= ABF_BT_CHIP_IS_ATHEROS ;
A_DEBUG("bt chip is atheros\n");
break;
case 's':
btfiltFlags |= ABF_FE_ANT_IS_SA ;
A_DEBUG("Front End Antenna Configuration is single antenna \n");
break;
case 'w':
memset(wifname, '\0', IFNAMSIZ);
strcpy(wifname, optarg);
g_AthBtFilterInstance.pWlanAdapterName = (A_CHAR *)&wifname;
break;
case 'b':
btfiltFlags |= ABF_USE_ONLY_DBUS_FILTERING;
break;
default:
usage();
exit(1);
}
}
/* Launch the daemon if desired */
if (daemonize && daemon(0, console_output ? 1 : 0)) {
printf("Can't daemonize: %s\n", strerror(errno));
exit(1);
}
/* Initialize the debug infrastructure */
A_DBG_INIT("ATHBT", "Ath BT Filter Daemon");
if (debug) {
if (console_output) {
A_DBG_SET_OUTPUT_TO_CONSOLE();
}
// setlogmask(LOG_INFO | LOG_DEBUG | LOG_ERR);
A_INFO("Enabling Debug Information\n");
A_SET_DEBUG(1);
}
if (config_file) {
A_DEBUG("Config file: %s\n", config_file);
if (!(gConfigFile = fopen(config_file, "r")))
{
A_ERR("[%s] fopen failed\n", __FUNCTION__);
}
}
A_MEMZERO(&sa, sizeof(struct sigaction));
sa.sa_flags = SA_NOCLDSTOP;
sa.sa_handler = Abf_SigTerm;
sigaction(SIGTERM, &sa, NULL);
sigaction(SIGINT, &sa, NULL);
sa.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &sa, NULL);
Abf_HciLibInit(&btfiltFlags);
/* Initialize the Filter core */
do {
Abf_WlanCheckSettings(wifname, &btfiltFlags);
ret = AthBtFilter_Attach(&g_AthBtFilterInstance, btfiltFlags );
if (ret) {
A_ERR("Filter initialization failed\n");
break;
}
/* Initialize the WLAN notification mechanism */
status = Abf_WlanStackNotificationInit(&g_AthBtFilterInstance, btfiltFlags );
if (A_FAILED(status)) {
AthBtFilter_Detach(&g_AthBtFilterInstance);
A_ERR("WLAN stack notification init failed\n");
break;
}
/* Initialize the BT notification mechanism */
status = Abf_BtStackNotificationInit(&g_AthBtFilterInstance,btfiltFlags);
if (A_FAILED(status)) {
Abf_WlanStackNotificationDeInit(&g_AthBtFilterInstance);
AthBtFilter_Detach(&g_AthBtFilterInstance);
A_ERR("BT stack notification init failed\n");
break;
}
/* Check for errors on the return value TODO */
pInfo = g_AthBtFilterInstance.pContext;
GpInfo = pInfo;
A_DEBUG("Service running, waiting for termination .... \n");
/* wait for termination signal */
while (!terminated) {
sleep(1);
}
} while(FALSE);
/* Initiate the shutdown sequence */
if(GpInfo != NULL) {
AthBtFilter_State_Off(GpInfo);
}
Abf_ShutDown();
Abf_HciLibDeInit();
/* Shutdown */
if (gConfigFile) {
fclose(gConfigFile);
}
if (config_file) {
A_FREE(config_file);
}
A_DEBUG("Service terminated \n");
A_MEMZERO(&g_AthBtFilterInstance, sizeof(ATH_BT_FILTER_INSTANCE));
A_DBG_DEINIT();
return 0;
}
