static int at_gprs_context_probe(struct ofono_gprs_context *gc,
unsigned int vendor, void *data)
{
GAtChat *chat = data;
struct gprs_context_data *gcd;
struct stat st;
DBG("");
if (stat(TUN_SYSFS_DIR, &st) < 0) {
ofono_error("Missing support for TUN/TAP devices");
return -ENODEV;
}
gcd = g_try_new0(struct gprs_context_data, 1);
if (gcd == NULL)
return -ENOMEM;
gcd->chat = g_at_chat_clone(chat);
gcd->vendor = vendor;
ofono_gprs_context_set_data(gc, gcd);
chat = g_at_chat_get_slave(gcd->chat);
if (chat == NULL)
return 0;
g_at_chat_register(chat, "+CGEV:", cgev_notify, FALSE, gc, NULL);
return 0;
}
static void at_gprs_activate_primary(struct ofono_gprs_context *gc,
const struct ofono_gprs_primary_context *ctx,
ofono_gprs_context_cb_t cb, void *data)
{
struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
char buf[OFONO_GPRS_MAX_APN_LENGTH + 128];
int len;
/* IPv6 support not implemented */
if (ctx->proto != OFONO_GPRS_PROTO_IP)
goto error;
DBG("cid %u", ctx->cid);
gcd->active_context = ctx->cid;
gcd->cb = cb;
gcd->cb_data = data;
memcpy(gcd->username, ctx->username, sizeof(ctx->username));
memcpy(gcd->password, ctx->password, sizeof(ctx->password));
gcd->state = STATE_ENABLING;
if (gcd->vendor == OFONO_VENDOR_ZTE) {
GAtChat *chat = g_at_chat_get_slave(gcd->chat);
/*
* The modem port of ZTE devices with certain firmware
* versions ends up getting suspended. It will no longer
* signal POLLOUT and becomes pretty unresponsive.
*
* To wake up the modem port, the only reliable method
* found so far is AT+ZOPRT power mode command. It is
* enough to ask for the current mode and the modem
* port wakes up and accepts commands again.
*
* And since the modem port is suspended, this command
* needs to be send on the control port of course.
*
*/
g_at_chat_send(chat, "AT+ZOPRT?", none_prefix,
NULL, NULL, NULL);
}
len = snprintf(buf, sizeof(buf), "AT+CGDCONT=%u,\"IP\"", ctx->cid);
if (ctx->apn)
snprintf(buf + len, sizeof(buf) - len - 3, ",\"%s\"",
ctx->apn);
if (g_at_chat_send(gcd->chat, buf, none_prefix,
at_cgdcont_cb, gc, NULL) > 0)
return;
error:
CALLBACK_WITH_FAILURE(cb, data);
}
static void at_gprs_activate_primary(struct ofono_gprs_context *gc,
const struct ofono_gprs_primary_context *ctx,
ofono_gprs_context_cb_t cb, void *data)
{
struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
char buf[OFONO_GPRS_MAX_APN_LENGTH + 128];
int len;
/* IPv6 support not implemented */
if (ctx->proto != OFONO_GPRS_PROTO_IP)
goto error;
DBG("cid %u", ctx->cid);
gcd->active_context = ctx->cid;
gcd->cb = cb;
gcd->cb_data = data;
memcpy(gcd->username, ctx->username, sizeof(ctx->username));
memcpy(gcd->password, ctx->password, sizeof(ctx->password));
/* We only support CHAP and PAP */
switch (ctx->auth_method) {
case OFONO_GPRS_AUTH_METHOD_CHAP:
gcd->auth_method = G_AT_PPP_AUTH_METHOD_CHAP;
break;
case OFONO_GPRS_AUTH_METHOD_PAP:
gcd->auth_method = G_AT_PPP_AUTH_METHOD_PAP;
break;
default:
goto error;
}
gcd->state = STATE_ENABLING;
if (gcd->vendor == OFONO_VENDOR_ZTE) {
GAtChat *chat = g_at_chat_get_slave(gcd->chat);
/*
* The modem port of ZTE devices with certain firmware
* versions ends up getting suspended. It will no longer
* signal POLLOUT and becomes pretty unresponsive.
*
* To wake up the modem port, the only reliable method
* found so far is AT+ZOPRT power mode command. It is
* enough to ask for the current mode and the modem
* port wakes up and accepts commands again.
*
* And since the modem port is suspended, this command
* needs to be send on the control port of course.
*
*/
g_at_chat_send(chat, "AT+ZOPRT?", none_prefix,
NULL, NULL, NULL);
}
len = snprintf(buf, sizeof(buf), "AT+CGDCONT=%u,\"IP\"", ctx->cid);
if (ctx->apn) {
switch (gcd->vendor) {
case OFONO_VENDOR_UBLOX:
/*
* U-blox modems require a magic prefix to the APN to
* specify the authentication method to use in the
* network. See UBX-13002752 - R21.
*
* As the response of the read command omits this magic
* prefix, this is the least invasive place to set it.
*/
switch (ctx->auth_method) {
case OFONO_GPRS_AUTH_METHOD_CHAP:
snprintf(buf + len, sizeof(buf) - len - 3,
",\"CHAP:%s\"", ctx->apn);
break;
case OFONO_GPRS_AUTH_METHOD_PAP:
snprintf(buf + len, sizeof(buf) - len - 3,
",\"PAP:%s\"", ctx->apn);
break;
}
break;
default:
snprintf(buf + len, sizeof(buf) - len - 3, ",\"%s\"",
ctx->apn);
break;
}
}
if (g_at_chat_send(gcd->chat, buf, none_prefix,
at_cgdcont_cb, gc, NULL) > 0)
return;
error:
CALLBACK_WITH_FAILURE(cb, data);
}
