void at_cmd(hd_data_t *hd_data, char *at, int raw, int log_it)
{
static unsigned u = 1;
char *s, *s0;
ser_device_t *sm;
str_list_t *sl;
int modems = 0;
for(sm = hd_data->ser_modem; sm; sm = sm->next) {
if(sm->do_io) {
sm->buf_len = 0;
modems++;
}
}
if(modems == 0) return;
PROGRESS(9, u, "write at cmd");
write_modem(hd_data, at);
PROGRESS(9, u, "read at resp");
usleep (200000);
read_modem(hd_data);
PROGRESS(9, u, "read ok");
u++;
for(sm = hd_data->ser_modem; sm; sm = sm->next) {
if(sm->do_io) {
sm->at_resp = free_str_list(sm->at_resp);
if(sm->buf_len == 0 || raw) continue;
s0 = sm->buf;
while((s = strsep(&s0, "\r\n"))) {
if(*s) add_str_list(&sm->at_resp, s);
}
}
}
if(!(hd_data->debug & HD_DEB_MODEM) || !log_it) return;
for(sm = hd_data->ser_modem; sm; sm = sm->next) {
if(sm->do_io) {
ADD2LOG("%s@%u: %s\n", sm->dev_name, sm->cur_baud, at);
if(raw) {
ADD2LOG(" ");
hexdump(&hd_data->log, 1, sm->buf_len, sm->buf);
ADD2LOG("\n");
}
else {
for(sl = sm->at_resp; sl; sl = sl->next) ADD2LOG(" %s\n", sl->str);
}
}
}
}
void* pppd_thread(void *param)
{
LOGD("%s: pppd_thread enter", logtime());
requestsWaitComplete("pppd_thread");
pppd_pid = fork();
if(pppd_pid == 0) {
char buff[256];
kill(getppid(), SIGSTOP); //stop stealing my mojo
int act=0;
send_modem("AT+CGACT?");
do {
read_modem(buff, sizeof(buff));
char* actpos=strstr(buff, "+CGACT: 1,");
if(actpos!=NULL) act=atoi(actpos+10);
}while(buff[0]!='0');
if(act!=0) {
kill(getppid(), SIGCONT);
exit(202);
}
sprintf(buff, "AT+CGDCONT=1,\"IP\",\"%s\",,0,0", current_apn);
send_modem(buff);
read_modem(buff, sizeof(buff));
send_modem("ATD*99***1#");
//send_modem("AT+CGDATA=\"PPP\",1");
while(read_modem(buff, sizeof(buff))>0 && buff[0]=='+');
//read_modem(buff, sizeof(buff));
kill(getppid(), SIGCONT);
int atd=atoi(buff);
if(atd!=1 && atd!=3) exit(201);
sleep(1);
close_modem(); //close modem handle before we transform to pppd
int err = execl("/system/bin/pppd", "pppd", "/dev/smd1", "local","nodetach", "defaultroute", "noipdefault", "usepeerdns", "user", current_user, "debug", NULL);
LOGE("%s: PPPD EXEC FAILED (%d)", logtime(),err);
exit(200);
} else {
LOGD("%s: pppd pid is %d", logtime(),pppd_pid);
int status=0;
time_t start = time(NULL);
waitpid(pppd_pid, &status, 0);
pppd_pid=0;
int runTime = time(NULL)-start;
LOGD("%s: PPPD DIED after %d seconds with status %d", logtime(), runTime, status);
if(lastDataError==PDP_FAIL_ERROR_UNSPECIFIED && WIFEXITED(status)){
switch(WEXITSTATUS(status))
{
case 1: lastDataError=PDP_FAIL_INSUFFICIENT_RESOURCES; break;
case 2: lastDataError=PDP_FAIL_SERVICE_OPTION_NOT_SUPPORTED; break;
case 3:
case 4:
lastDataError=PDP_FAIL_PROTOCOL_ERRORS; break;
case 19: lastDataError=PDP_FAIL_USER_AUTHENTICATION; break;
}
}
requestsWaitComplete("pppd_thread");
send_modem("AT+CGACT=0,1");
if(dataConnectionState==DATA_STATE_CONNECTED || dataConnectionState==DATA_STATE_CONNECTION_KILL) {
dataConnectionState=DATA_STATE_DISCONNECTED;
RIL_Data_Call_Response dataCall={ .cid=1, .active=0, .type="IP", .apn=current_apn, .address=current_addr };
s_rilenv->OnUnsolicitedResponse(RIL_UNSOL_DATA_CALL_LIST_CHANGED, &dataCall, sizeof(RIL_Data_Call_Response));
}
}
LOGD("%s: pppd_thread exit", logtime());
return NULL;
}
