From 0208c10e9bebaa0acb2d4db25267c67f779dbf2a Mon Sep 17 00:00:00 2001
From: Giacinto Cifelli <gciofono@gmail.com>
Date: Mon, 22 Oct 2018 20:56:07 +0200
Subject: [PATCH] atmodem: Add at_util_gprs_auth_method_to_auth_proto

This function converts the ofono enum ofono_gprs_auth_method
into the value of the 3GPP 27.007 'auth_proto' variable of +CGAUTH so
that it can be passed directly to the AT command.
---
 drivers/atmodem/atutil.c | 16 ++++++++++++++++
 drivers/atmodem/atutil.h |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/atmodem/atutil.c b/drivers/atmodem/atutil.c
index 6f4e8a20..661ba205 100644
--- a/drivers/atmodem/atutil.c
+++ b/drivers/atmodem/atutil.c
@@ -3,6 +3,7 @@
  *  oFono - Open Source Telephony
  *
  *  Copyright (C) 2008-2011  Intel Corporation. All rights reserved.
+ *  Copyright (C) 2018 Gemalto M2M
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
@@ -654,3 +655,18 @@ int at_util_get_ipv4_address_and_netmask(const char *addrnetmask,
 
 	return ret;
 }
+
+int at_util_gprs_auth_method_to_auth_prot(
+					enum ofono_gprs_auth_method auth_method)
+{
+	switch (auth_method) {
+	case OFONO_GPRS_AUTH_METHOD_PAP:
+		return 1;
+	case OFONO_GPRS_AUTH_METHOD_CHAP:
+		return 2;
+	case OFONO_GPRS_AUTH_METHOD_NONE:
+		return 0;
+	}
+
+	return 0;
+}
diff --git a/drivers/atmodem/atutil.h b/drivers/atmodem/atutil.h
index 7113a4cd..aa6b8d4d 100644
--- a/drivers/atmodem/atutil.h
+++ b/drivers/atmodem/atutil.h
@@ -3,6 +3,7 @@
  *  oFono - Open Source Telephony
  *
  *  Copyright (C) 2008-2011  Intel Corporation. All rights reserved.
+ *  Copyright (C) 2018 Gemalto M2M
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
@@ -86,6 +87,9 @@ void at_util_sim_state_query_free(struct at_util_sim_state_query *req);
 int at_util_get_ipv4_address_and_netmask(const char *addrnetmask,
 						char *address, char *netmask);
 
+int at_util_gprs_auth_method_to_auth_prot(
+				enum ofono_gprs_auth_method auth_method);
+
 struct cb_data {
 	void *cb;
 	void *data;