static void requestRadioPower(void *data, size_t datalen, RIL_Token t)
{
int onOff;
int err=0;
ATResponse *p_response = NULL;
assert (datalen >= sizeof(int *));
onOff = ((int *)data)[0];
if (onOff == 0 && sState != RADIO_STATE_OFF) {
if (first_cfun == 0) {
stop_pppd();
wait_for_pppd_down();
err = at_send_command("AT+CFUN=0", &p_response);
if (err < 0)
goto error;
} else {
first_cfun = 0;
}
setRadioState(RADIO_STATE_OFF);
} else if (onOff > 0 && sState == RADIO_STATE_OFF) {
err = at_send_command("AT+CFUN=1", &p_response);
if (err < 0|| p_response->success == 0) {
// Some stacks return an error when there is no SIM,
// but they really turn the RF portion on
// So, if we get an error, let's check to see if it
// turned on anyway
if (getRadioPower() != 1) {
goto error;
}
}
setRadioState(RADIO_STATE_SIM_NOT_READY);
}
at_response_free(p_response);
RIL_onRequestComplete(t, RIL_E_SUCCESS, NULL, 0);
return;
error:
at_response_free(p_response);
RIL_onRequestComplete(t, RIL_E_GENERIC_FAILURE, NULL, 0);
}
int
start_pppd(int unit)
{
FILE *fp;
char options[80];
char *pppd_argv[] = { "/usr/sbin/pppd", "file", options, NULL};
char tmp[100], prefix[] = "wanXXXXXXXXXX_";
char buf[256]; /* although maximum length of pppoe_username/pppoe_passwd is 64. pppd accepts up to 256 characters. */
mode_t mask;
int ret = 0;
_dprintf("%s: unit=%d.\n", __FUNCTION__, unit);
snprintf(prefix, sizeof(prefix), "wan%d_", unit);
sprintf(options, "/tmp/ppp/options.wan%d", unit);
mask = umask(0000);
/* Generate options file */
if (!(fp = fopen(options, "w"))) {
perror(options);
umask(mask);
return -1;
}
umask(mask);
/* do not authenticate peer and do not use eap */
fprintf(fp, "noauth\n");
fprintf(fp, "refuse-eap\n");
handle_special_char_for_pppd(buf, sizeof(buf), nvram_safe_get(strcat_r(prefix, "pppoe_username", tmp)));
fprintf(fp, "user '%s'\n", buf);
handle_special_char_for_pppd(buf, sizeof(buf), nvram_safe_get(strcat_r(prefix, "pppoe_passwd", tmp)));
fprintf(fp, "password '%s'\n", buf);
if (nvram_match(strcat_r(prefix, "proto", tmp), "pptp")) {
fprintf(fp, "plugin pptp.so\n");
fprintf(fp, "pptp_server '%s'\n",
nvram_invmatch(strcat_r(prefix, "heartbeat_x", tmp), "") ?
nvram_safe_get(strcat_r(prefix, "heartbeat_x", tmp)) :
nvram_safe_get(strcat_r(prefix, "gateway_x", tmp)));
/* see KB Q189595 -- historyless & mtu */
fprintf(fp, "nomppe-stateful mtu 1400\n");
if (nvram_match(strcat_r(prefix, "pptp_options_x", tmp), "-mppc")) {
fprintf(fp, "nomppe nomppc\n");
} else
if (nvram_match(strcat_r(prefix, "pptp_options_x", tmp), "+mppe-40")) {
fprintf(fp, "require-mppe\n");
fprintf(fp, "require-mppe-40\n");
} else
if (nvram_match(strcat_r(prefix, "pptp_options_x", tmp), "+mppe-56")) {
fprintf(fp, "nomppe-40\n"
"require-mppe\n"
"require-mppe-56\n");
} else
if (nvram_match(strcat_r(prefix, "pptp_options_x", tmp), "+mppe-128")) {
fprintf(fp, "nomppe-40\n"
"nomppe-56\n"
"require-mppe\n"
"require-mppe-128\n");
}
} else {
fprintf(fp, "nomppe nomppc\n");
}
if (nvram_match(strcat_r(prefix, "proto", tmp), "pppoe")) {
fprintf(fp, "plugin rp-pppoe.so nic-%s\n",
nvram_safe_get(strcat_r(prefix, "ifname", tmp)));
if (nvram_invmatch(strcat_r(prefix, "pppoe_service", tmp), "")) {
fprintf(fp, "rp_pppoe_service '%s'\n",
nvram_safe_get(strcat_r(prefix, "pppoe_service", tmp)));
}
if (nvram_invmatch(strcat_r(prefix, "pppoe_ac", tmp), "")) {
fprintf(fp, "rp_pppoe_ac '%s'\n",
nvram_safe_get(strcat_r(prefix, "pppoe_ac", tmp)));
}
#ifdef RTCONFIG_DSL
if (nvram_match("dsl0_proto", "pppoa")) {
FILE *fp_dsl_mac;
char *dsl_mac = NULL;
int timeout = 10; /* wait up to 10 seconds */
while (timeout--) {
fp_dsl_mac = fopen("/tmp/adsl/tc_mac.txt","r");
if (fp_dsl_mac != NULL) {
dsl_mac = fgets(tmp, sizeof(tmp), fp_dsl_mac);
dsl_mac = strsep(&dsl_mac, "\r\n");
fclose(fp_dsl_mac);
break;
}
usleep(1000*1000);
}
fprintf(fp, "rp_pppoe_sess %d:%s\n", 154,
(dsl_mac && *dsl_mac) ? dsl_mac : "00:11:22:33:44:55");
}
#endif
fprintf(fp, "mru %s mtu %s\n",
nvram_safe_get(strcat_r(prefix, "pppoe_mru", tmp)),
nvram_safe_get(strcat_r(prefix, "pppoe_mtu", tmp)));
}
if (nvram_invmatch(strcat_r(prefix, "proto", tmp), "l2tp")) {
ret = nvram_get_int(strcat_r(prefix, "pppoe_idletime", tmp));
if (ret && nvram_get_int(strcat_r(prefix, "pppoe_demand", tmp))) {
fprintf(fp, "idle %d ", ret);
if (nvram_invmatch(strcat_r(prefix, "pppoe_txonly_x", tmp), "0"))
fprintf(fp, "tx_only ");
fprintf(fp, "demand\n");
}
fprintf(fp, "persist\n");
}
fprintf(fp, "holdoff %d\n", nvram_get_int(strcat_r(prefix, "pppoe_holdoff", tmp)) ? : 10);
fprintf(fp, "maxfail %d\n", nvram_get_int(strcat_r(prefix, "pppoe_maxfail", tmp)));
if (nvram_get_int(strcat_r(prefix, "dnsenable_x", tmp)))
fprintf(fp, "usepeerdns\n");
fprintf(fp, "ipcp-accept-remote ipcp-accept-local noipdefault\n");
fprintf(fp, "ktune\n");
/* pppoe set these options automatically */
/* looks like pptp also likes them */
fprintf(fp, "default-asyncmap nopcomp noaccomp\n");
/* pppoe disables "vj bsdcomp deflate" automagically */
/* ccp should still be enabled - mppe/mppc requires this */
fprintf(fp, "novj nobsdcomp nodeflate\n");
/* echo failures */
fprintf(fp, "lcp-echo-interval 6\n");
fprintf(fp, "lcp-echo-failure 10\n");
/* pptp has Echo Request/Reply, l2tp has Hello packets */
if (nvram_match(strcat_r(prefix, "proto", tmp), "pptp") ||
nvram_match(strcat_r(prefix, "proto", tmp), "l2tp"))
fprintf(fp, "lcp-echo-adaptive\n");
fprintf(fp, "unit %d\n", unit);
fprintf(fp, "linkname wan%d\n", unit);
#ifdef RTCONFIG_IPV6
switch (get_ipv6_service()) {
case IPV6_NATIVE_DHCP:
case IPV6_MANUAL:
if (nvram_match("ipv6_ifdev", "ppp"))
fprintf(fp, "+ipv6\n");
break;
}
#endif
/* user specific options */
fprintf(fp, "%s\n",
nvram_safe_get(strcat_r(prefix, "pppoe_options_x", tmp)));
fclose(fp);
/* shut down previous instance if any */
stop_pppd(unit);
nvram_set(strcat_r(prefix, "pppoe_ifname", tmp), "");
if (nvram_match(strcat_r(prefix, "proto", tmp), "l2tp"))
{
if (!(fp = fopen("/tmp/l2tp.conf", "w"))) {
perror(options);
return -1;
}
fprintf(fp, "# automagically generated\n"
"global\n\n"
"load-handler \"sync-pppd.so\"\n"
"load-handler \"cmd.so\"\n\n"
"section sync-pppd\n\n"
"lac-pppd-opts \"file %s\"\n\n"
"section peer\n"
"port 1701\n"
"peername %s\n"
"hostname %s\n"
"lac-handler sync-pppd\n"
"persist yes\n"
"maxfail %d\n"
"holdoff %d\n"
"hide-avps no\n"
"section cmd\n\n",
options,
nvram_invmatch(strcat_r(prefix, "heartbeat_x", tmp), "") ?
nvram_safe_get(strcat_r(prefix, "heartbeat_x", tmp)) :
nvram_safe_get(strcat_r(prefix, "gateway_x", tmp)),
nvram_invmatch(strcat_r(prefix, "hostname", tmp), "") ?
nvram_safe_get(strcat_r(prefix, "hostname", tmp)) : "localhost",
nvram_get_int(strcat_r(prefix, "pppoe_maxfail", tmp)) ? : 32767,
nvram_get_int(strcat_r(prefix, "pppoe_holdoff", tmp)) ? : 10);
fclose(fp);
/* launch l2tp */
eval("/usr/sbin/l2tpd");
ret = 3;
do {
_dprintf("%s: wait l2tpd up at %d seconds...\n", __FUNCTION__, ret);
usleep(1000*1000);
} while (!pids("l2tpd") && ret--);
/* start-session */
ret = eval("/usr/sbin/l2tp-control", "start-session 0.0.0.0");
/* pppd sync nodetach noaccomp nobsdcomp nodeflate */
/* nopcomp novj novjccomp file /tmp/ppp/options.l2tp */
} else
int main(int argc, char **argv)
{
struct pollfd pollfds[3];
int control = -1;
int timeout;
int status;
#ifdef ANDROID_CHANGES
control = android_get_control_and_arguments(&argc, &argv);
shutdown(control, SHUT_WR);
#endif
srandom(time(NULL));
if (pipe(signals) == -1) {
log_print(FATAL, "Pipe() %s", strerror(errno));
exit(SYSTEM_ERROR);
}
fcntl(signals[0], F_SETFD, FD_CLOEXEC);
fcntl(signals[1], F_SETFD, FD_CLOEXEC);
timeout = initialize(argc, argv);
signal(SIGHUP, interrupt);
signal(SIGINT, interrupt);
signal(SIGTERM, interrupt);
signal(SIGCHLD, interrupt);
signal(SIGPIPE, SIG_IGN);
atexit(stop_pppd);
pollfds[0].fd = the_socket;
pollfds[0].events = POLLIN;
pollfds[1].fd = signals[0];
pollfds[1].events = POLLIN;
pollfds[2].fd = control;
pollfds[2].events = 0;
while (timeout >= 0) {
if (poll(pollfds, 3, timeout ? timeout : -1) == -1 && errno != EINTR) {
log_print(FATAL, "Poll() %s", strerror(errno));
exit(SYSTEM_ERROR);
}
if (pollfds[1].revents) {
break;
}
if (pollfds[2].revents) {
interrupt(SIGTERM);
}
timeout = pollfds[0].revents ?
the_protocol->process() : the_protocol->timeout();
#ifdef ANDROID_CHANGES
if (!access("/data/misc/vpn/abort", F_OK)) {
interrupt(SIGTERM);
}
if (!timeout) {
timeout = 5000;
}
#endif
}
if (timeout < 0) {
status = -timeout;
} else {
int signal;
read(signals[0], &signal, sizeof(int));
log_print(INFO, "Received signal %d", signal);
if (signal == SIGCHLD && waitpid(pppd_pid, &status, WNOHANG) == pppd_pid
&& WIFEXITED(status)) {
status = WEXITSTATUS(status);
log_print(INFO, "Pppd is terminated (status = %d)", status);
status += PPPD_EXITED;
pppd_pid = 0;
} else {
status = USER_REQUESTED;
}
}
stop_pppd();
the_protocol->shutdown();
log_print(INFO, "Mtpd is terminated (status = %d)", status);
return status;
}
