---
drivers/atmodem/gprs-context.c | 31 ++++++++++++++++++++++++++++---
1 file changed, 28 insertions(+), 3 deletions(-)
diff --git a/drivers/atmodem/gprs-context.c b/drivers/atmodem/gprs-context.c
index be44443..f6e6c2e 100644
--- a/drivers/atmodem/gprs-context.c
+++ b/drivers/atmodem/gprs-context.c
@@ -282,9 +282,34 @@ static void at_gprs_activate_primary(struct
ofono_gprs_context *gc,
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 (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)
--
1.7.10.4
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