applications: serial_lte_modem: remove deprecated RAI

Remove deprecated RAI socket options.

Signed-off-by: Mirko Covizzi <[email protected]>

Author: MirkoCovizzi

applications/serial_lte_modem/src/slm_at_socket.c

@@ -354,26 +354,6 @@ static int at_sockopt_to_sockopt(enum at_sockopt at_option, int *level, int *opt
 		*level = SOL_SOCKET;
 		*option = SO_RAI;
 		break;
-	case AT_SO_RAI_NO_DATA:
-		*level = SOL_SOCKET;
-		*option = SO_RAI_NO_DATA;
-		break;
-	case AT_SO_RAI_LAST:
-		*level = SOL_SOCKET;
-		*option = SO_RAI_LAST;
-		break;
-	case AT_SO_RAI_ONE_RESP:
-		*level = SOL_SOCKET;
-		*option = SO_RAI_ONE_RESP;
-		break;
-	case AT_SO_RAI_ONGOING:
-		*level = SOL_SOCKET;
-		*option = SO_RAI_ONGOING;
-		break;
-	case AT_SO_RAI_WAIT_MORE:
-		*level = SOL_SOCKET;
-		*option = SO_RAI_WAIT_MORE;
-		break;
 	case AT_SO_TCP_SRV_SESSTIMEO:
 		*level = IPPROTO_TCP;
 		*option = SO_TCP_SRV_SESSTIMEO;
@@ -404,11 +384,6 @@ static int sockopt_set(enum at_sockopt at_option, int at_value)
 		tmo.tv_sec = at_value;
 		value = &tmo;
 		len = sizeof(tmo);
-	} else if (level == SOL_SOCKET && (option == SO_RAI_LAST || option == SO_RAI_NO_DATA ||
-					   option == SO_RAI_ONE_RESP || option == SO_RAI_ONGOING ||
-					   option == SO_RAI_WAIT_MORE)) {
-		value = NULL;
-		len = 0;
 	}
 
 	ret = setsockopt(sock.fd, level, option, value, len);

applications/serial_lte_modem/src/slm_sockopt.h

@@ -24,11 +24,6 @@ enum at_sockopt {
 	AT_SO_IP_ECHO_REPLY = 31,
 	AT_SO_IPV6_ECHO_REPLY = 32,
 	AT_SO_BINDTOPDN = 40,
-	AT_SO_RAI_NO_DATA = 50,
-	AT_SO_RAI_LAST = 51,
-	AT_SO_RAI_ONE_RESP = 52,
-	AT_SO_RAI_ONGOING = 53,
-	AT_SO_RAI_WAIT_MORE = 54,
 	AT_SO_TCP_SRV_SESSTIMEO = 55,
 	AT_SO_RAI = 61,
 };

doc/nrf/releases_and_maturity/migration/migration_guide_2.8.rst

@@ -33,7 +33,25 @@ Samples and applications
 
 This section describes the changes related to samples and applications.
 
-|no_changes_yet_note|
+Serial LTE Modem (SLM)
+----------------------
+
+.. toggle::
+
+  * The handling of Release Assistance Indication (RAI) socket options has been updated in the ``#XSOCKETOPT`` command.
+    The individual RAI-related socket options have been consolidated into a single ``SO_RAI`` option.
+    You must modify your application to use the new ``SO_RAI`` option with the corresponding value to specify the RAI behavior.
+    The changes are as follows:
+
+    The ``SO_RAI_NO_DATA``, ``SO_RAI_LAST``, ``SO_RAI_ONE_RESP``, ``SO_RAI_ONGOING``, and ``SO_RAI_WAIT_MORE`` options have been replaced by the ``SO_RAI`` option with values from ``1`` to ``5``.
+
+    Replace the following commands in your application code if they were used previously:
+
+    * ``AT#XSOCKETOPT=1,50,`` with ``AT#XSOCKETOPT=1,61,1`` to indicate ``RAI_NO_DATA``.
+    * ``AT#XSOCKETOPT=1,51,`` with ``AT#XSOCKETOPT=1,61,2`` to indicate ``RAI_LAST``.
+    * ``AT#XSOCKETOPT=1,52,`` with ``AT#XSOCKETOPT=1,61,3`` to indicate ``RAI_ONE_RESP``.
+    * ``AT#XSOCKETOPT=1,53,`` with ``AT#XSOCKETOPT=1,61,4`` to indicate ``RAI_ONGOING``.
+    * ``AT#XSOCKETOPT=1,54,`` with ``AT#XSOCKETOPT=1,61,5`` to indicate ``RAI_WAIT_MORE``.
 
 Libraries
 =========

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -241,6 +241,7 @@ Serial LTE modem
 * Removed:
 
   * Support for the :file:`overlay-native_tls.conf` configuration file with the ``thingy91/nrf9160/ns`` board target.
+  * Support for deprecated RAI socket options ``AT_SO_RAI_LAST``, ``AT_SO_RAI_NO_DATA``, ``AT_SO_RAI_ONE_RESP``, ``AT_SO_RAI_ONGOING``, and ``AT_SO_RAI_WAIT_MORE``.
 
 * Updated: