--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/g23m-gprs/sm/sm_network_control.c	Fri Oct 16 06:25:50 2020 +0000
@@ -0,0 +1,2319 @@
+/*----------------------------------------------------------------------------
+|  Project :  3G PS
+|  Module  :  SM
++-----------------------------------------------------------------------------
+|             Copyright 2003 Texas Instruments.
+|             All rights reserved. 
+| 
+|             This file is confidential and a trade secret of Texas 
+|             Instruments .
+|             The receipt of or possession of this file does not convey 
+|             any rights to reproduce or disclose its contents or to 
+|             manufacture, use, or sell anything it may describe, in 
+|             whole, or in part, without the specific written consent of 
+|             Texas Instruments. 
++-----------------------------------------------------------------------------
+| Purpose:    Network Control state machine implementation in the SM entity.
+|             For design details, see:
+|             8010.908 SM Detailed Specification
++---------------------------------------------------------------------------*/
+
+/*==== DECLARATION CONTROL =================================================*/
+
+/*==== INCLUDES =============================================================*/
+
+#include "sm.h"
+
+#include "sm_network_control.h"
+#include "sm_context_control.h"
+
+#include "sm_mm_output_handler.h"
+
+#include "sm_qos.h"
+#include "sm_tft.h"
+#include "sm_timer_handler.h"
+
+/*==== CONSTS ===============================================================*/
+
+/*==== TYPES ================================================================*/
+
+typedef void (*T_SM_NETWORK_CONTROL_TRANSITION_FUNC)(struct T_SM_CONTEXT_DATA *ptr_context_data, /*@null@*/ void *data);
+
+typedef struct {
+#ifdef DEBUG
+  T_SM_NETWORK_CONTROL_EVENT            event;
+#endif /* DEBUG */
+  T_SM_NETWORK_CONTROL_TRANSITION_FUNC  func;
+} T_SM_NETWORK_CONTROL_TRANSITION;
+
+/*==== LOCALS ===============================================================*/
+
+static void state_event_error(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void ignored          (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void message_incompatible_with_state(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void message_for_invalid_ti(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+
+/* Handler functions for internal events */
+static void handle_activate_primary(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_activate_secondary(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_request_activation_reject(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_in_S4(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_deactivate_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_deactivate_during_activation(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_deactivate_during_modification(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_deactivate_in_S4(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_deactivate_local(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+
+/* Handler functions for incoming air interface messages */
+static void handle_activate_pdp_context_accept(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_activate_pdp_context_reject(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_activate_secondary_pdp_context_accept(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_activate_secondary_pdp_context_reject(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_request_pdp_context_activation_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_request_pdp_context_activation_in_S1(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_request_pdp_context_activation_in_S4(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_request_in_S3(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_request_in_S4(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_request_in_S5(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_request_in_S6(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_accept_in_S3(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_accept_in_S5(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_accept_in_S6(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_reject_in_S3(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_reject_in_S5(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_modify_pdp_context_reject_in_S6(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_deactivate_pdp_context_request_while_active(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_deactivate_pdp_context_request_while_deactivating(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_deactivate_pdp_context_accept(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+/* Handler functions for timer timeouts */
+static void handle_T3380(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_T3380_max  (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_T3381      (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_T3381_max_in_S3(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_T3381_max_in_S5(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_T3381_max_in_S6(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_T3390      (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_T3390_max  (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+/* Handler functions for incoming primitives */
+static void handle_mmpm_suspend_ind(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+static void handle_mmpm_resume_ind(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
+
+/***********************************************************************
+ * State/Transition Table
+ */
+static const T_SM_NETWORK_CONTROL_TRANSITION
+transition[SM_NETWORK_CONTROL_NUMBER_OF_STATES][SM_NETWORK_CONTROL_NUMBER_OF_EVENTS] =
+{
+  {  /* S0: SM NETWORK DEACTIVATED */
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT,           message_for_invalid_ti),
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_REJECT,           message_for_invalid_ti),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT, message_for_invalid_ti),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT, message_for_invalid_ti),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST,        state_event_error),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT,         state_event_error),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REQUEST,            message_for_invalid_ti),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_ACCEPT,             message_for_invalid_ti),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REJECT,             message_for_invalid_ti),
+    M_TRANSITION(SM_M_REQUEST_PDP_CONTEXT_ACTIVATION,        handle_request_pdp_context_activation_in_S0),
+    M_TRANSITION(SM_M_SM_STATUS,                             state_event_error),
+    M_TRANSITION(SM_P_MMPM_RESUME_IND,                       ignored),
+    M_TRANSITION(SM_P_MMPM_SUSPEND_IND,                      handle_mmpm_suspend_ind),
+    M_TRANSITION(SM_T_T3380,                                 state_event_error),
+    M_TRANSITION(SM_T_T3380_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3381,                                 state_event_error),
+    M_TRANSITION(SM_T_T3381_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3390,                                 state_event_error),
+    M_TRANSITION(SM_T_T3390_MAX,                             state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_PRIMARY,              handle_activate_primary),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_SECONDARY,            handle_activate_secondary),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE_LOCAL,              handle_deactivate_local),
+    M_TRANSITION(SM_I_NETWORK_MODIFY,                        state_event_error),
+    M_TRANSITION(SM_I_NETWORK_REQUEST_ACTIVATION_REJECT,     handle_request_activation_reject),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE,                    handle_deactivate_in_S0)
+  },
+  {  /* S1: SM NETWORK ACTIVATING PRIMARY */
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT,           handle_activate_pdp_context_accept),
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_REJECT,           handle_activate_pdp_context_reject),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST,        handle_deactivate_pdp_context_request_while_active),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT,         message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REQUEST,            message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_ACCEPT,             message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REJECT,             message_incompatible_with_state),
+    M_TRANSITION(SM_M_REQUEST_PDP_CONTEXT_ACTIVATION,        handle_request_pdp_context_activation_in_S1),
+    M_TRANSITION(SM_M_SM_STATUS,                             state_event_error),
+    M_TRANSITION(SM_P_MMPM_RESUME_IND,                       handle_mmpm_resume_ind),
+    M_TRANSITION(SM_P_MMPM_SUSPEND_IND,                      handle_mmpm_suspend_ind),
+    M_TRANSITION(SM_T_T3380,                                 handle_T3380),
+    M_TRANSITION(SM_T_T3380_MAX,                             handle_T3380_max),
+    M_TRANSITION(SM_T_T3381,                                 state_event_error),
+    M_TRANSITION(SM_T_T3381_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3390,                                 state_event_error),
+    M_TRANSITION(SM_T_T3390_MAX,                             state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_PRIMARY,              state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_SECONDARY,            state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE_LOCAL,              handle_deactivate_local),
+    M_TRANSITION(SM_I_NETWORK_MODIFY,                        state_event_error),
+    M_TRANSITION(SM_I_NETWORK_REQUEST_ACTIVATION_REJECT,     state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE,                    handle_deactivate_during_activation)
+  },
+  {  /* S2: SM NETWORK ACTIVATING SECONDARY */
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_REJECT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT, handle_activate_secondary_pdp_context_accept),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT, handle_activate_secondary_pdp_context_reject),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST,        handle_deactivate_pdp_context_request_while_active),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT,         message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REQUEST,            message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_ACCEPT,             message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REJECT,             message_incompatible_with_state),
+    M_TRANSITION(SM_M_REQUEST_PDP_CONTEXT_ACTIVATION,        message_incompatible_with_state),
+    M_TRANSITION(SM_M_SM_STATUS,                             state_event_error),
+    M_TRANSITION(SM_P_MMPM_RESUME_IND,                       handle_mmpm_resume_ind),
+    M_TRANSITION(SM_P_MMPM_SUSPEND_IND,                      handle_mmpm_suspend_ind),
+    M_TRANSITION(SM_T_T3380,                                 handle_T3380),
+    M_TRANSITION(SM_T_T3380_MAX,                             handle_T3380_max),
+    M_TRANSITION(SM_T_T3381,                                 state_event_error),
+    M_TRANSITION(SM_T_T3381_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3390,                                 state_event_error),
+    M_TRANSITION(SM_T_T3390_MAX,                             state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_PRIMARY,              state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_SECONDARY,            state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE_LOCAL,              handle_deactivate_local),
+    M_TRANSITION(SM_I_NETWORK_MODIFY,                        state_event_error),
+    M_TRANSITION(SM_I_NETWORK_REQUEST_ACTIVATION_REJECT,     state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE,                    handle_deactivate_during_activation)
+  },
+  {  /* S3: SM NETWORK ACTIVATING ADDING TFTS */
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_REJECT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST,        handle_deactivate_pdp_context_request_while_active),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT,         message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REQUEST,            handle_modify_pdp_context_request_in_S3),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_ACCEPT,             handle_modify_pdp_context_accept_in_S3),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REJECT,             handle_modify_pdp_context_reject_in_S3),
+    M_TRANSITION(SM_M_REQUEST_PDP_CONTEXT_ACTIVATION,        message_incompatible_with_state),
+    M_TRANSITION(SM_M_SM_STATUS,                             state_event_error),
+    M_TRANSITION(SM_P_MMPM_RESUME_IND,                       handle_mmpm_resume_ind),
+    M_TRANSITION(SM_P_MMPM_SUSPEND_IND,                      handle_mmpm_suspend_ind),
+    M_TRANSITION(SM_T_T3380,                                 state_event_error),
+    M_TRANSITION(SM_T_T3380_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3381,                                 handle_T3381),
+    M_TRANSITION(SM_T_T3381_MAX,                             handle_T3381_max_in_S3),
+    M_TRANSITION(SM_T_T3390,                                 state_event_error),
+    M_TRANSITION(SM_T_T3390_MAX,                             state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_PRIMARY,              state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_SECONDARY,            state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE_LOCAL,              handle_deactivate_local),
+    M_TRANSITION(SM_I_NETWORK_MODIFY,                        state_event_error),
+    M_TRANSITION(SM_I_NETWORK_REQUEST_ACTIVATION_REJECT,     state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE,                    handle_deactivate_during_modification)
+  },
+  {  /* S4: SM NETWORK ACTIVATED */
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_REJECT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST,        handle_deactivate_pdp_context_request_while_active),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT,         message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REQUEST,            handle_modify_pdp_context_request_in_S4),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_ACCEPT,             message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REJECT,             message_incompatible_with_state),
+    M_TRANSITION(SM_M_REQUEST_PDP_CONTEXT_ACTIVATION,        handle_request_pdp_context_activation_in_S4),
+    M_TRANSITION(SM_M_SM_STATUS,                             state_event_error),
+    M_TRANSITION(SM_P_MMPM_RESUME_IND,                       ignored),
+    M_TRANSITION(SM_P_MMPM_SUSPEND_IND,                      handle_mmpm_suspend_ind),
+    M_TRANSITION(SM_T_T3380,                                 state_event_error),
+    M_TRANSITION(SM_T_T3380_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3381,                                 state_event_error),
+    M_TRANSITION(SM_T_T3381_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3390,                                 state_event_error),
+    M_TRANSITION(SM_T_T3390_MAX,                             state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_PRIMARY,              state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_SECONDARY,            state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE_LOCAL,              handle_deactivate_local),
+    M_TRANSITION(SM_I_NETWORK_MODIFY,                        handle_modify_in_S4),
+    M_TRANSITION(SM_I_NETWORK_REQUEST_ACTIVATION_REJECT,     state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE,                    handle_deactivate_in_S4)
+  },
+  {  /* S5: SM NETWORK MODIFYING */
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_REJECT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST,        handle_deactivate_pdp_context_request_while_active),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT,         message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REQUEST,            handle_modify_pdp_context_request_in_S5),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_ACCEPT,             handle_modify_pdp_context_accept_in_S5),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REJECT,             handle_modify_pdp_context_reject_in_S5),
+    M_TRANSITION(SM_M_REQUEST_PDP_CONTEXT_ACTIVATION,        message_incompatible_with_state),
+    M_TRANSITION(SM_M_SM_STATUS,                             state_event_error),
+    M_TRANSITION(SM_P_MMPM_RESUME_IND,                       handle_mmpm_resume_ind),
+    M_TRANSITION(SM_P_MMPM_SUSPEND_IND,                      handle_mmpm_suspend_ind),
+    M_TRANSITION(SM_T_T3380,                                 state_event_error),
+    M_TRANSITION(SM_T_T3380_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3381,                                 handle_T3381),
+    M_TRANSITION(SM_T_T3381_MAX,                             handle_T3381_max_in_S5),
+    M_TRANSITION(SM_T_T3390,                                 state_event_error),
+    M_TRANSITION(SM_T_T3390_MAX,                             state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_PRIMARY,              state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_SECONDARY,            state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE_LOCAL,              handle_deactivate_local),
+    M_TRANSITION(SM_I_NETWORK_MODIFY,                        state_event_error),
+    M_TRANSITION(SM_I_NETWORK_REQUEST_ACTIVATION_REJECT,     state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE,                    handle_deactivate_during_modification)
+  },
+  {  /* S6: SM NETWORK MODIFYING ADDITIONAL TFTS */
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_REJECT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST,        handle_deactivate_pdp_context_request_while_active),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT,         message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REQUEST,            handle_modify_pdp_context_request_in_S6),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_ACCEPT,             handle_modify_pdp_context_accept_in_S6),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REJECT,             handle_modify_pdp_context_reject_in_S6),
+    M_TRANSITION(SM_M_REQUEST_PDP_CONTEXT_ACTIVATION,        message_incompatible_with_state),
+    M_TRANSITION(SM_M_SM_STATUS,                             state_event_error),
+    M_TRANSITION(SM_P_MMPM_RESUME_IND,                       handle_mmpm_resume_ind),
+    M_TRANSITION(SM_P_MMPM_SUSPEND_IND,                      handle_mmpm_suspend_ind),
+    M_TRANSITION(SM_T_T3380,                                 state_event_error),
+    M_TRANSITION(SM_T_T3380_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3381,                                 handle_T3381),
+    M_TRANSITION(SM_T_T3381_MAX,                             handle_T3381_max_in_S6),
+    M_TRANSITION(SM_T_T3390,                                 state_event_error),
+    M_TRANSITION(SM_T_T3390_MAX,                             state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_PRIMARY,              state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_SECONDARY,            state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE_LOCAL,              handle_deactivate_local),
+    M_TRANSITION(SM_I_NETWORK_MODIFY,                        state_event_error),
+    M_TRANSITION(SM_I_NETWORK_REQUEST_ACTIVATION_REJECT,     state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE,                    handle_deactivate_during_modification)
+  },
+  {  /* S7: SM NETWORK DEACTIVATING */
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_PDP_CONTEXT_REJECT,           message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT, message_incompatible_with_state),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST,        handle_deactivate_pdp_context_request_while_deactivating),
+    M_TRANSITION(SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT,         handle_deactivate_pdp_context_accept),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REQUEST,            message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_ACCEPT,             message_incompatible_with_state),
+    M_TRANSITION(SM_M_MODIFY_PDP_CONTEXT_REJECT,             message_incompatible_with_state),
+    M_TRANSITION(SM_M_REQUEST_PDP_CONTEXT_ACTIVATION,        message_incompatible_with_state),
+    M_TRANSITION(SM_M_SM_STATUS,                             state_event_error),
+    M_TRANSITION(SM_P_MMPM_RESUME_IND,                       handle_mmpm_resume_ind),
+    M_TRANSITION(SM_P_MMPM_SUSPEND_IND,                      handle_mmpm_suspend_ind),
+    M_TRANSITION(SM_T_T3380,                                 state_event_error),
+    M_TRANSITION(SM_T_T3380_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3381,                                 state_event_error),
+    M_TRANSITION(SM_T_T3381_MAX,                             state_event_error),
+    M_TRANSITION(SM_T_T3390,                                 handle_T3390),
+    M_TRANSITION(SM_T_T3390_MAX,                             handle_T3390_max),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_PRIMARY,              state_event_error),
+    M_TRANSITION(SM_I_NETWORK_ACTIVATE_SECONDARY,            state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE_LOCAL,              handle_deactivate_local),
+    M_TRANSITION(SM_I_NETWORK_MODIFY,                        state_event_error),
+    M_TRANSITION(SM_I_NETWORK_REQUEST_ACTIVATION_REJECT,     state_event_error),
+    M_TRANSITION(SM_I_NETWORK_DEACTIVATE,                    ignored)
+  }
+};
+
+/*==== PRIVATE FUNCTIONS ====================================================*/
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_nw_mark_context_active
++------------------------------------------------------------------------------
+| Description : Mark context in network state ACTIVE
+|
+| Parameters  : nsapi              - context index
++------------------------------------------------------------------------------
+*/
+static void sm_nw_mark_context_active(int /*@alt U8@*/ nsapi)
+{
+  sm_data.sm_context_activation_status
+    = sm_add_nsapi_to_nsapi_set(nsapi, sm_data.sm_context_activation_status);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_nw_mark_context_inactive
++------------------------------------------------------------------------------
+| Description : Mark context in network state INACTIVE
+|
+| Parameters  : nsapi              - context index
++------------------------------------------------------------------------------
+*/
+static void sm_nw_mark_context_inactive(int /*@alt U8@*/ nsapi)
+{
+  sm_data.sm_context_activation_status
+    = sm_remove_nsapi_from_nsapi_set(nsapi, sm_data.sm_context_activation_status);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_nw_mark_nsapi_set_inactive
++------------------------------------------------------------------------------
+| Description : Mark a set of contexts in network state INACTIVE
+|
+| Parameters  : nsapi_set          - Set of NSAPIs to mark inactive
++------------------------------------------------------------------------------
+*/
+static void sm_nw_mark_nsapi_set_inactive(U16 nsapi_set)
+{
+  sm_data.sm_context_activation_status &= 0xffff ^ nsapi_set;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_nw_get_next_free_ti
++------------------------------------------------------------------------------
+| Description : Traverse sm_context_array and find the lowest unused TI.
+|
+| Parameters  : context             - context that needs TI
++------------------------------------------------------------------------------
+*/
+static U8 sm_nw_get_next_free_ti(struct T_SM_CONTEXT_DATA *context_to_get_ti)
+{
+  int nsapi;
+  U16 ti_mask = (U16)0x07ff;
+
+  /* Iterate through sm_context_array and find the lowest available TI */
+  for (nsapi = (int)NAS_NSAPI_5; nsapi < NAS_SIZE_NSAPI; nsapi++)
+  {
+    struct T_SM_CONTEXT_DATA *context;
+
+    context = sm_get_context_data_from_nsapi(nsapi);
+    if (context != NULL && context != context_to_get_ti
+        && (context->ti & (U8)SM_TI_FLAG) == (U8)0 )
+    {
+      ti_mask &= 0x7ff ^ (1 << context->ti);
+    }
+  }
+
+  if (ti_mask != 0)
+  {
+    int index;
+    for (index = 0;
+         index < SM_MAX_NSAPI_OFFSET && (ti_mask & (1UL << (U16)index)) == 0;
+         index++)
+      {};
+    return (U8)index;
+  } else {
+    /* No TIs available */
+    return (U8)0;
+  }
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_nw_initiate_deactivation
++------------------------------------------------------------------------------
+| Description : General function for aborting a procedure and deactivating
+|
+| Parameters  : context          - context data
++------------------------------------------------------------------------------
+*/
+static void sm_nw_initiate_deactivation(struct T_SM_CONTEXT_DATA *context,
+                                        T_CAUSE_ps_cause *ps_cause)
+{
+  /* Stop any active timer and start T3390 in stead */
+  sm_timer_stop(context);
+  sm_timer_start(context, SM_TIMER_T3390);
+
+  /* Send message DEACTIVATE PDP CONTEXT REQUEST */
+  send_msg_deactivate_pdp_context_request(context, ps_cause, FALSE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_nw_store_mt_modify_parameters
++------------------------------------------------------------------------------
+| Description : Examines a T_D_MODIFY_PDP_CONTEXT_REQUEST message and stores
+|               the parameters included.  Returns flags which indicate the
+|               parameters that were updated.
+|
+| Parameters  : context          - context data
+|               msg              - T_D_MODIFY_PDP_CONTEXT_REQUEST
++------------------------------------------------------------------------------
+*/
+static T_SM_UPDATE_FLAGS
+sm_nw_store_mt_modify_parameters(struct T_SM_CONTEXT_DATA *context,
+                                 T_D_MODIFY_PDP_CONTEXT_REQUEST *msg)
+{
+  T_SM_UPDATE_FLAGS  update_flags;
+  sm_qos_assign_from_aim(&context->accepted_qos, &msg->qos);
+
+  update_flags             = SM_UPDATE_QOS;
+
+  /* Store GSM RAT parameters, if present */
+  if (context->radio_prio != msg->radio_prio.radio_prio_val ||
+      context->sapi       != msg->llc_sapi.sapi)
+  {
+    context->radio_prio    = msg->radio_prio.radio_prio_val;
+    context->sapi          = msg->llc_sapi.sapi;
+    update_flags          |= SM_UPDATE_SAPI_RADIO_PRIO_PFI;
+  }
+
+  /* Store PFI, if present */
+  if (msg->v_pfi != (U8)FALSE && msg->pfi.pfi_val != context->pfi)
+  {
+    sm_set_pfi_included(context, TRUE);
+    context->pfi           = msg->pfi.pfi_val;
+    update_flags          |= SM_UPDATE_SAPI_RADIO_PRIO_PFI;
+  }
+
+  /* IP address "modified" (== assigned late)? Store, if so. */
+  if (msg->v_address != (U8)FALSE)
+  {
+    sm_nw_store_negotiated_address(context, &msg->address, msg->v_address);
+    update_flags          |= SM_UPDATE_ADDRESS;
+  }
+
+  return update_flags;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_nw_store_modify_accept_parameters
++------------------------------------------------------------------------------
+| Description : Examines a T_D_MODIFY_PDP_CONTEXT_ACCEPT message and stores
+|               the parameters included.  Returns flags which indicate the
+|               parameters that were updated.
+|
+| Parameters  : context          - context data
+|               msg              - T_D_MODIFY_PDP_CONTEXT_REQUEST
++------------------------------------------------------------------------------
+*/
+static T_SM_UPDATE_FLAGS
+sm_nw_store_modify_accept_parameters(struct T_SM_CONTEXT_DATA *context,
+                                     T_D_MODIFY_PDP_CONTEXT_ACCEPT *msg)
+{
+  T_SM_UPDATE_FLAGS  update_flags = (T_SM_UPDATE_FLAGS)0;
+
+  /* Store GSM RAT parameters, if present */
+  if (msg->v_llc_sapi != (U8)FALSE)
+  {
+    context->sapi       = msg->llc_sapi.sapi;
+    update_flags        = SM_UPDATE_SAPI_RADIO_PRIO_PFI;
+  }
+
+  if (msg->v_radio_prio != (U8)FALSE &&
+      msg->radio_prio.radio_prio_val != context->radio_prio)
+  {
+    context->radio_prio = msg->radio_prio.radio_prio_val;
+    update_flags        = SM_UPDATE_SAPI_RADIO_PRIO_PFI;
+  }
+
+  /* Store PFI, if present */
+  if (msg->v_pfi != (U8)FALSE &&
+      msg->pfi.pfi_val != context->pfi)
+  {
+    sm_set_pfi_included(context, TRUE);
+    context->pfi         = msg->pfi.pfi_val;
+    update_flags         = SM_UPDATE_SAPI_RADIO_PRIO_PFI;
+  }
+
+  return update_flags;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : state_event_error
++------------------------------------------------------------------------------
+| Description : General function used to report state event errors.
+|
+| Parameters  : context          - Not used
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void state_event_error(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
+{
+  (void)TRACE_ERROR("SM Network Control: STATE EVENT ERROR!");
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : ignored
++------------------------------------------------------------------------------
+| Description : General function used for transitions that shall be ignored
+|
+| Parameters  : context          - Not used
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void ignored(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
+{
+  (void)TRACE_FUNCTION("SM Network Control: Event ignored.");
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : message_incompatible_with_state
++------------------------------------------------------------------------------
+| Description : General function used for reporting illegal air interface
+|               messages in the current state
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void message_incompatible_with_state(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
+{
+  (void)TRACE_FUNCTION("message_incompatible_with_state");
+
+  sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_MSG_TYPE_INCOMPATIBLE_WITH_STATE);
+  send_msg_sm_status(context->ti, sm_get_nw_cause(context));
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : message_for_invalid_ti
++------------------------------------------------------------------------------
+| Description : General function used for replying to network messages
+|               received for a context in state S0 (invalid TI)
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void message_for_invalid_ti(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
+{
+  (void)TRACE_FUNCTION("message_for_invalid_ti");
+
+  sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_INVALID_TI);
+  send_msg_sm_status(context->ti, sm_get_nw_cause(context));
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_activate_primary
++------------------------------------------------------------------------------
+| Description : Handle event SM_I_NETWORK_ACTIVATE_PRIMARY in S0
+|
+| Parameters  : context          - Context data
+|               data             - SMREG_PDP_ACTIVATE_REQ *
++------------------------------------------------------------------------------
+*/
+static void handle_activate_primary(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_SMREG_PDP_ACTIVATE_REQ *prim = (T_SMREG_PDP_ACTIVATE_REQ *)data;
+
+  (void)TRACE_FUNCTION("handle_activate_primary");
+
+  if (prim != NULL)
+  {
+    memcpy(&context->comp_params, &prim->comp_params, sizeof(T_NAS_comp_params));
+
+    sm_qos_copy_to_sm(&context->requested_qos, &prim->qos, prim->ctrl_qos);
+    sm_qos_copy_to_sm(&context->minimum_qos, (T_PS_qos *)&prim->min_qos,
+                      (T_PS_ctrl_qos)prim->ctrl_min_qos);
+
+    sm_nw_store_requested_address(context, prim->pdp_type,
+                                  prim->ctrl_ip_address, &prim->ip_address);
+
+    /* Free APN (necessary if this is a network requested activation) */
+    sm_nw_free_apn(context);
+
+    /* Store APN for negotiation, if present */
+    if (prim->apn.c_apn_buf > (U8)0)
+    {
+      sm_nw_allocate_and_copy_apn(context, prim->apn.c_apn_buf, prim->apn.apn_buf);
+    }
+
+    /* Store TFT for later addition, if present */
+    TRACE_ASSERT(context->requested_tft.ptr_tft_pf == NULL);
+    if (prim->v_tft != (U8)FALSE && prim->tft.c_tft_pf > (U8)0)
+    {
+      sm_nw_allocate_and_copy_requested_tft(context, &prim->tft);
+    } else {
+      context->requested_tft.c_tft_pf = (U8)0;
+    }
+
+    /* Store PCO for negotiation, if present */
+    sm_nw_free_requested_pco(context);
+    if (prim->sdu.l_buf > 0)
+    {
+      U16 pco_len = prim->sdu.l_buf >> 3;
+      sm_nw_allocate_and_copy_requested_pco(context, pco_len,
+                                            &prim->sdu.buf[(prim->sdu.o_buf >> 3)]);
+    }
+
+    /* Allocate TI for context unless this was a NW initiated activation */
+    if ((context->ti & SM_TI_FLAG) == (U8)0)
+    {
+      context->ti = sm_nw_get_next_free_ti(context);
+    }
+  } else {
+    /* No SMREG primitive: This is a re-activation.  Use current parameters. */ 
+    /* The following function call can cause problems in reactivation cases 
+     * where the first pdp context uses dynamic addressing. When the following
+     * function is called the 'reactivated' context uses address issued by the 
+     * network for the first pdp activation. This will result in static addressing
+     * and may cause pdp activation reject from networks that doesn't support 
+     * static addressing.
+     */
+    /*sm_nw_copy_negotiated_address_to_requested(context);*/
+  }
+
+  /* Mark context as active */
+  sm_nw_mark_context_active(context->nsapi);
+
+  /* Start timer T3380 for this NSAPI/context */
+  sm_timer_start(context, SM_TIMER_T3380);
+
+  /* Send ACTIVATE PDP CONTEXT REQUEST message */
+  send_msg_activate_pdp_context_request(context);
+
+  /* Go to state SM NETWORK ACTIVATING PRIMARY */
+  context->network_control_state = SM_NETWORK_ACTIVATING_PRIMARY;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_activate_secondary
++------------------------------------------------------------------------------
+| Description : Handle event SM_I_NETWORK_ACTIVATE_SECONDARY in S0
+|
+| Parameters  : context          - Context data
+|               data             - T_SMREG_PDP_ACTIVATE_SEC_REQ *
++------------------------------------------------------------------------------
+*/
+static void handle_activate_secondary(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_SMREG_PDP_ACTIVATE_SEC_REQ *prim = (T_SMREG_PDP_ACTIVATE_SEC_REQ *)data;
+
+  (void)TRACE_FUNCTION("handle_activate_secondary");
+
+  if (prim != NULL)
+  {
+    memcpy(&context->comp_params, &prim->comp_params, sizeof(T_NAS_comp_params));
+
+    sm_qos_copy_to_sm(&context->requested_qos, &prim->qos, prim->ctrl_qos);
+    sm_qos_copy_to_sm(&context->minimum_qos, (T_PS_qos *)&prim->min_qos,
+                      (T_PS_ctrl_qos)prim->ctrl_min_qos);
+
+    /* Store TFT for later addition, if present */
+    sm_nw_free_requested_tft(context);
+    if (prim->v_tft != (U8)FALSE && prim->tft.c_tft_pf > (U8)0)
+    {
+      sm_nw_allocate_and_copy_requested_tft(context, &prim->tft);
+    } else {
+      context->requested_tft.c_tft_pf = (U8)0;
+    }
+    /* Allocate TI for context */
+    context->ti = sm_nw_get_next_free_ti(context);
+  } else {
+    /* No SMREG primitive: This is a re-activation.  Use current parameters. */
+  }
+
+  /* Mark context as active */
+  sm_nw_mark_context_active(context->nsapi);
+
+  /* Start timer T3380 for this NSAPI/context */
+  sm_timer_start(context, SM_TIMER_T3380);
+
+  /* Send ACTIVATE SECONDARY PDP CONTEXT REQUEST message */
+  send_msg_activate_secondary_pdp_context_request(context);
+
+  /* Go to state SM NETWORK ACTIVATING SECONDARY */
+  context->network_control_state = SM_NETWORK_ACTIVATING_SECONDARY;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_request_activation_reject
++------------------------------------------------------------------------------
+| Description : Handle event SM_I_NETWORK_REQUEST_ACTIVATION_REJECT in S0
+|
+| Parameters  : context          - Context data
+|               data             - Not used (cause set in context data)
++------------------------------------------------------------------------------
+*/
+static void handle_request_activation_reject(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/ void *data)
+{
+  (void)TRACE_FUNCTION("handle_request_activation_reject");
+
+  /* Send REQUEST PDP CONTEXT ACTIVATION REJECT message */
+  send_msg_request_pdp_context_activation_reject(context, sm_get_nw_cause(context));
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_in_S4
++------------------------------------------------------------------------------
+| Description : Handle event SM_I_NETWORK_MODIFY in S4
+|
+| Parameters  : context          - Context data
+|               data             - T_SMREG_PDP_MODIFY_REQ *
++------------------------------------------------------------------------------
+*/
+static void handle_modify_in_S4(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_SMREG_PDP_MODIFY_REQ *prim = (T_SMREG_PDP_MODIFY_REQ *)data;
+  BOOL                    start_modification = FALSE;
+
+  (void)TRACE_FUNCTION("handle_modify_in_S4");
+
+  /* If prim == NULL this is a context upgrade (RAB re-establishment) */
+  if (prim != NULL)
+  {
+    if (prim->ctrl_qos != PS_is_qos_not_present)
+    {
+      sm_qos_copy_to_sm(&context->requested_qos, &prim->qos, prim->ctrl_qos);
+      start_modification          = TRUE;
+    }
+
+    if (prim->ctrl_min_qos != PS_is_min_qos_not_present)
+    {
+      sm_qos_copy_to_sm(&context->minimum_qos, (T_PS_qos *)&prim->min_qos,
+                        (T_PS_ctrl_qos)prim->ctrl_min_qos);
+      if (!sm_qos_is_minimum_satisfied_by_sm(context, &context->accepted_qos))
+      {
+        start_modification        = TRUE;
+      }
+    }
+
+    /* Store TFT for later addition, if present */
+    if (prim->v_tft != (U8)FALSE)
+    {
+      if (prim->tft.c_tft_pf > (U8)0)
+      {
+        sm_nw_allocate_and_copy_requested_tft(context, &prim->tft);
+      } else {
+        context->requested_tft.c_tft_pf = (U8)0;
+      }
+      if (sm_tft_more_to_modify(context))
+      {
+        start_modification        = TRUE;
+      }
+    }
+  } else {
+    /* Prim == NULL: context upgrade (RAB re-establishment) */
+    /* Start modification with originally requested parameters */
+    start_modification            = TRUE;
+  }
+
+  if (start_modification)
+  {
+    /* Start timer T3381 for this NSAPI/context */
+    sm_timer_start(context, SM_TIMER_T3381);
+
+    /* Send MODIFY PDP CONTEXT REQUEST message */
+    send_msg_modify_pdp_context_request(context);
+
+    /* Go to state SM NETWORK MODIFYING */
+    context->network_control_state = SM_NETWORK_MODIFYING;
+  }
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_deactivate_in_S0
++------------------------------------------------------------------------------
+| Description : Handle event SM_I_NETWORK_DEACTIVATE in S0
+|
+| Parameters  : context          - Context data
+|               data             - rel_ind flag
++------------------------------------------------------------------------------
+*/
+static void handle_deactivate_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  (void)TRACE_FUNCTION("handle_deactivate_in_S0");
+
+  /* Report success deactivation to Context Control (already inactive) */
+  sm_context_control(context, SM_I_NETWORK_DEACTIVATE_COMPLETED, data);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_deactivate_during_activation
++------------------------------------------------------------------------------
+| Description : Handle event SM_I_NETWORK_DEACTIVATE in S1 or S2
+|
+| Parameters  : context          - Context data
+|               data             - Cause (T_CAUSE_ps_cause *)
++------------------------------------------------------------------------------
+*/
+static void handle_deactivate_during_activation(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  (void)TRACE_FUNCTION("handle_deactivate_during_activation");
+
+  TRACE_ASSERT(data != NULL);
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Stop T3380, and start deactivation */
+  sm_nw_initiate_deactivation(context, (T_CAUSE_ps_cause *)data);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_deactivate_in_S4
++------------------------------------------------------------------------------
+| Description : Handle event SM_I_NETWORK_DEACTIVATE in S4
+|
+| Parameters  : context          - Context data
+|               data             - Cause (T_CAUSE_ps_cause *)
++------------------------------------------------------------------------------
+*/
+static void handle_deactivate_in_S4(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  (void)TRACE_FUNCTION("handle_deactivate_in_S4");
+
+  TRACE_ASSERT(data != NULL);
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Initiate deactivation; data contains cause */
+  sm_nw_initiate_deactivation(context, (T_CAUSE_ps_cause *)data);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_deactivate_during_modification
++------------------------------------------------------------------------------
+| Description : Handle event SM_I_NETWORK_DEACTIVATE in S3, S5, or S6
+|
+| Parameters  : context          - Context data
+|               data             - Cause (T_CAUSE_ps_cause *)
++------------------------------------------------------------------------------
+*/
+static void handle_deactivate_during_modification(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  (void)TRACE_FUNCTION("handle_deactivate_during_modification");
+
+  TRACE_ASSERT(data != NULL);
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Initiate deactivation; data contains cause */
+  sm_nw_initiate_deactivation(context, (T_CAUSE_ps_cause *)data);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_deactivate_local
++------------------------------------------------------------------------------
+| Description : Handle SM_I_NETWORK_DEACTIVATE_LOCAL
+|
+| Parameters  : context          - context data
+|               data             - unused
++------------------------------------------------------------------------------
+*/
+static void handle_deactivate_local(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
+{
+  /* Remove active TFT - this is necessary in case of reactivations */
+  sm_nw_free_active_tft(context);
+
+  /* Free stored coded message - if any */
+  sm_free_coded_msg(context);
+
+  /* Mark context as inactive */
+  sm_nw_mark_context_inactive(context->nsapi);
+
+  context->network_control_state = SM_NETWORK_DEACTIVATED;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_activate_pdp_context_accept
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT in S1
+|
+| Parameters  : context          - Context data
+|               data             - T_ACTIVATE_PDP_CONTEXT_ACCEPT *
++------------------------------------------------------------------------------
+*/
+static void handle_activate_pdp_context_accept(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_ACTIVATE_PDP_CONTEXT_ACCEPT *msg = (T_ACTIVATE_PDP_CONTEXT_ACCEPT *)data;
+  T_SM_UPDATE_FLAGS     update_flags = (T_SM_UPDATE_FLAGS)0; 
+  BOOL  is_address_changed = FALSE;
+
+  (void)TRACE_FUNCTION("handle_activate_pdp_context_accept");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Stop timer T3380 */
+  sm_timer_stop(context);
+
+  if (!sm_is_llc_sapi_valid(msg->llc_sapi.sapi, context->ti))
+  {
+    return;
+  }
+   
+  is_address_changed = sm_is_address_changed_with_reactivation(context, 
+                                               &msg->address, msg->v_address);
+  /* Check whether negotiated QoS satisfies minimum QoS */
+  if ( sm_qos_is_minimum_satisfied_by_aim(context, &msg->qos) && 
+                                         !(is_address_changed) )
+  {
+    if (context->accepted_qos.ctrl_qos != PS_is_qos_not_present)
+    {
+      update_flags |= SM_UPDATE_QOS;
+    }
+
+    /* QoS >= minimum QoS: Store negotiated parameters */
+    sm_qos_assign_from_aim(&context->accepted_qos, &msg->qos);
+
+    /* Store GSM RAT parameters */
+    context->radio_prio        = msg->radio_prio.radio_prio_val;
+    context->sapi              = msg->llc_sapi.sapi;
+
+    /* Store PFI, if present */
+    if (msg->v_pfi != (U8)FALSE)
+    {
+      sm_set_pfi_included(context, TRUE);
+      context->pfi             = msg->pfi.pfi_val;
+    } else {
+      sm_set_pfi_included(context, FALSE);
+    }
+
+    /* Store negotiated IP address, if any */
+    sm_nw_store_negotiated_address(context, &msg->address, msg->v_address);
+
+    /* Store negotiated PCO, if any */
+    if (msg->v_pco != (U8)FALSE && msg->pco.c_pco_value > (U8)0)
+    {
+      sm_nw_allocate_and_copy_negotiated_pco(context, msg->pco.c_pco_value,
+                                             msg->pco.pco_value);
+    } else {
+      context->negotiated_pco     = NULL;
+    }
+
+    /* Check whether to add TFT */
+    if (sm_tft_more_to_modify(context))
+    {
+      /* Start T3381 */
+      sm_timer_start(context, SM_TIMER_T3381);
+      /* Send MODIFY PDP CONTEXT REQUEST with remaining TFTs */
+      send_msg_modify_pdp_context_request(context);
+      /* Go to state SM NETWORK ACTIVATING ADDING TFTS */
+      context->network_control_state = SM_NETWORK_ACTIVATING_ADDING_TFTS;
+    } else {
+      /* No TFT: go to state SM NETWORK ACTIVATED, and inform Context Control */
+      context->network_control_state = SM_NETWORK_ACTIVATED;
+
+      sm_context_control(context, SM_I_NETWORK_ACTIVATE_COMPLETED,
+                         (void *)update_flags);
+    }
+  } else {  /* if (sm_qos_is_minimum_satisfied_by_aim()) */
+    /* Minimum QoS not satisfied - Start deactivation, T3390 */
+    sm_timer_start(context, SM_TIMER_T3390);
+
+    /* Send DEACTIVATE PDP CONTEXT REQUEST message */
+    if (is_address_changed) {
+      sm_set_nw_cause(context, CAUSE_is_from_nwsm, 
+                               (U16)CAUSE_NWSM_REGULAR_DEACTIVATION);
+      sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_REGULAR_DEACTIVATION);
+    }
+    else {
+      sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+      sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+    }
+    send_msg_deactivate_pdp_context_request(context, sm_get_nw_cause(context), FALSE);
+
+    /* Go to state SM NETWORK DEACTIVATING */
+    context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+    /* Report failed activation to Context Control (with network deactivation) */
+     
+    sm_context_control(context, SM_I_NETWORK_ACTIVATE_REJECTED, (void *)TRUE);
+  } /* if */
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_activate_pdp_context_reject
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_ACTIVATE_PDP_CONTEXT_REJECT in S1
+|
+| Parameters  : context          - Context data
+|               data             - T_ACTIVATE_PDP_CONTEXT_REJECT *
++------------------------------------------------------------------------------
+*/
+static void handle_activate_pdp_context_reject(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_ACTIVATE_PDP_CONTEXT_REJECT *msg = (T_ACTIVATE_PDP_CONTEXT_REJECT *)data;
+  (void)TRACE_FUNCTION("handle_activate_pdp_context_reject");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Store erroneous PCO, if any */
+  if (msg->v_pco != (U8)FALSE && msg->pco.c_pco_value > (U8)0)
+  {
+    sm_nw_allocate_and_copy_negotiated_pco(context, msg->pco.c_pco_value,
+                                           msg->pco.pco_value);
+  } else {
+    context->negotiated_pco     = NULL;
+  }
+
+  /* Stop timer T3380 */
+  sm_timer_stop(context);
+
+  /* Go to state SM NETWORK DEACTIVATED */
+  context->network_control_state = SM_NETWORK_DEACTIVATED;
+
+  /* Mark context as inactive */
+  sm_nw_mark_context_inactive(context->nsapi);
+
+  /* Build cause structure */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)msg->sm_cause.sm_cause_val);
+
+  /* Re-synchronise MMs PDP context status */
+  send_mmpm_pdp_context_status_req();
+
+  /* Report failed activation to Context Control (no network deactivation) */
+  sm_context_control(context, SM_I_NETWORK_ACTIVATE_REJECTED, (void *)FALSE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_activate_secondary_pdp_context_accept
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT
+|
+| Parameters  : context          - Context data
+|               data             - T_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT *
++------------------------------------------------------------------------------
+*/
+static void handle_activate_secondary_pdp_context_accept(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT *msg = (T_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT *)data;
+
+  (void)TRACE_FUNCTION("handle_activate_secondary_pdp_context_accept");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+	  
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Stop timer T3380 */
+  sm_timer_stop(context);
+
+  if (!sm_is_llc_sapi_valid(msg->llc_sapi.sapi, context->ti))
+  {
+    return;
+  }
+
+  /* Check whether negotiated QoS satisfies minimum QoS */
+  if (sm_qos_is_minimum_satisfied_by_aim(context, &msg->qos))
+  {
+    /* QoS >= minimum QoS: Store negotiated parameters */
+    sm_qos_assign_from_aim(&context->accepted_qos, &msg->qos);
+
+    /* Store GSM RAT parameters */
+    context->radio_prio        = msg->radio_prio.radio_prio_val;
+    context->sapi              = msg->llc_sapi.sapi;
+
+    /* Store PFI, if present */
+    if (msg->v_pfi != (U8)FALSE)
+    {
+      sm_set_pfi_included(context, TRUE);
+      context->pfi             = msg->pfi.pfi_val;
+    } else {
+      sm_set_pfi_included(context, FALSE);
+    }
+
+    /* Check whether to add TFT */
+    if (sm_tft_more_to_modify(context))
+    {
+      /* Start T3381 */
+      sm_timer_start(context, SM_TIMER_T3381);
+      /* Send MODIFY PDP CONTEXT REQUEST with remaining TFTs */
+      send_msg_modify_pdp_context_request(context);
+      /* Go to state SM NETWORK ACTIVATING ADDING TFTS */
+      context->network_control_state = SM_NETWORK_ACTIVATING_ADDING_TFTS;
+    } else {
+      /* No TFT: go to state SM NETWORK ACTIVATED, and inform Context Control */
+      context->network_control_state = SM_NETWORK_ACTIVATED;
+
+      sm_context_control(context, SM_I_NETWORK_ACTIVATE_COMPLETED, NULL);
+    }
+  } else {  /* if (sm_qos_is_minimum_satisfied_by_aim()) */
+    /* Minimum QoS not satisfied - go to state SM NETWORK DEACTIVATING */
+    context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+    /* Start deactivation, T3390 */
+    sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+    sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+    /* Report failed activation to Context Control (with network deactivation) */
+    sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+    sm_context_control(context, SM_I_NETWORK_ACTIVATE_REJECTED, (void *)TRUE);
+  } /* if */
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_activate_secondary_pdp_context_reject
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT
+|
+| Parameters  : context          - Context data
+|               data             - T_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT *
++------------------------------------------------------------------------------
+*/
+static void handle_activate_secondary_pdp_context_reject(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT *msg = (T_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT *)data;
+  (void)TRACE_FUNCTION("handle_activate_secondary_pdp_context_reject");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Stop timer T3380 */
+  sm_timer_stop(context);
+
+  /* Go to state SM NETWORK DEACTIVATED */
+  context->network_control_state = SM_NETWORK_DEACTIVATED;
+
+  /* Mark context as inactive */
+  sm_nw_mark_context_inactive(context->nsapi);
+
+  /* Build cause structure */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)msg->sm_cause.sm_cause_val);
+
+  /* Re-synchronise MMs PDP context status */
+  send_mmpm_pdp_context_status_req();
+
+  /* Report failed activation to Context Control (no network deactivation) */
+  sm_context_control(context, SM_I_NETWORK_ACTIVATE_REJECTED, (void *)FALSE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_request_pdp_context_activation_in_S0
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_REQUEST_PDP_CONTEXT_ACTIVATION in S0
+|
+| Parameters  : context          - Context data
+|               data             - T_REQUEST_PDP_CONTEXT_ACTIVATION *
++------------------------------------------------------------------------------
+*/
+static void handle_request_pdp_context_activation_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_REQUEST_PDP_CONTEXT_ACTIVATION *msg = (T_REQUEST_PDP_CONTEXT_ACTIVATION *)data;
+
+  (void)TRACE_FUNCTION("handle_request_pdp_context_activation_in_S0");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  context->pdp_type         = msg->address.pdp_type_no;
+
+  sm_nw_store_negotiated_address(context, &msg->address, (U8)TRUE);
+
+  if (msg->v_apn != (U8)FALSE)
+  {
+    sm_nw_allocate_and_copy_apn(context, msg->apn.c_apn_value, msg->apn.apn_value);
+  } else {
+    context->apn            = NULL;
+  }
+
+  /* Inform Context Control of activation request */
+  sm_context_control(context, SM_I_NETWORK_REQUEST_ACTIVATION, msg);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_request_pdp_context_activation_in_S1
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_REQUEST_PDP_CONTEXT_ACTIVATION in S1
+|
+| Parameters  : context          - Context data
+|               data             - T_REQUEST_PDP_CONTEXT_ACTIVATION *
++------------------------------------------------------------------------------
+*/
+static void handle_request_pdp_context_activation_in_S1(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_REQUEST_PDP_CONTEXT_ACTIVATION *msg = (T_REQUEST_PDP_CONTEXT_ACTIVATION *)data;
+  (void)TRACE_FUNCTION("handle_request_pdp_context_activation_in_S1");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /*lint !e613 (Warning -- Possible use of null pointer) */
+  if (sm_nw_is_address_and_apn_equal(context, &context->requested_address,
+                                     &msg->address, msg->v_apn, &msg->apn))
+  {
+    /* Do nothing */
+  } else {
+    /* Reject incoming context activation */
+    sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_INSUFFICIENT_RESOURCES);
+
+    send_msg_request_pdp_context_activation_reject(context,
+                                                   sm_get_nw_cause(context));
+  } /* if */
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_request_pdp_context_activation_in_S4
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_REQUEST_PDP_CONTEXT_ACTIVATION in S4
+|
+| Parameters  : context          - Context data
+|               data             - T_REQUEST_PDP_CONTEXT_ACTIVATION *
++------------------------------------------------------------------------------
+*/
+static void handle_request_pdp_context_activation_in_S4(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_REQUEST_PDP_CONTEXT_ACTIVATION *msg = (T_REQUEST_PDP_CONTEXT_ACTIVATION *)data;
+  (void)TRACE_FUNCTION("handle_request_pdp_context_activation_in_S4");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  if (sm_nw_is_address_and_apn_equal(context, &context->negotiated_address,
+                                     &msg->address, msg->v_apn, &msg->apn))
+  {
+    /* Go to state SM NETWORK ACTIVATING PRIMARY */
+    context->network_control_state = SM_NETWORK_ACTIVATING_PRIMARY;
+
+    /* Inform Context Control of the activation override
+     * NOTE!  Normally other state machines are informed last, but in this
+     * case we need to update sm_data.sm_context_activation_status _before_
+     * sending ACTIVATE PDP CONTEXT REQUEST through MM. */
+    sm_context_control(context, SM_I_NETWORK_REQUEST_ACTIVATION_OVERRIDE, NULL);
+
+    /* Context activation override - start context activation procedure */
+    sm_timer_start(context, SM_TIMER_T3380);
+
+    /* This is akin to a context reactivation: Use currently negotiated IP address */
+    sm_nw_copy_negotiated_address_to_requested(context);
+
+    send_msg_activate_pdp_context_request(context);
+  } else {
+    /* Reject incoming context activation */
+    sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_INSUFFICIENT_RESOURCES);
+    send_msg_request_pdp_context_activation_reject(context, sm_get_nw_cause(context));
+  } /* if */
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_request_in_S3
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_REQUEST in S3
+|
+| Parameters  : context          - Context data
+|               data             - T_MODIFY_PDP_CONTEXT_REQUEST * (unused)
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_request_in_S3(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/void *data)
+{
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_request_in_S3");
+
+  /* Free coded message */
+  sm_free_coded_msg(context);
+
+  /* Stop T3381, start T3390, and send DEACTIVATE PDP CONTEXT REQUEST message */
+  sm_set_nw_cause(context, CAUSE_is_from_nwsm,
+                  (U16)CAUSE_NWSM_MSG_INCOMPATIBLE_WITH_STATE);
+  sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Inform Context Control of the failed activation (with network deactivation) */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm,
+                   (U16)CAUSE_NWSM_MSG_INCOMPATIBLE_WITH_STATE);
+  sm_context_control(context, SM_I_NETWORK_ACTIVATE_REJECTED, (void *)TRUE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_request_in_S4
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_REQUEST in S4
+|
+| Parameters  : context          - Context data
+|               data             - T_D_MODIFY_PDP_CONTEXT_REQUEST *
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_request_in_S4(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_D_MODIFY_PDP_CONTEXT_REQUEST *msg = (T_D_MODIFY_PDP_CONTEXT_REQUEST *)data;
+  T_SM_UPDATE_FLAGS      update_flags;
+
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_request_in_S4");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  if (!sm_is_llc_sapi_valid(msg->llc_sapi.sapi, context->ti))
+  {
+    return;
+  }
+
+  if (sm_qos_is_minimum_satisfied_by_aim(context, &msg->qos))
+  {
+    /* QoS >= minimum QoS: Store negotiated parameters */
+    update_flags = sm_nw_store_mt_modify_parameters(context, msg);
+
+    /* Go to state SM NETWORK ACTIVATED */
+    context->network_control_state = SM_NETWORK_ACTIVATED;
+
+    /* Reply to network: MODIFY PDP CONTEXT ACCEPT */
+    send_msg_modify_pdp_context_accept(context);
+
+    /* Report successful NW initiated context modification */
+    sm_context_control(context, SM_I_NETWORK_REQUEST_MODIFY,
+                       (void *)update_flags);
+  } else {
+    /* Minimum QoS not satisfied - go to state SM NETWORK DEACTIVATING */
+    context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+    /* Start deactivation, T3390 */
+    sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+    sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+    /* Report failed activation to Context Control */
+    sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+    sm_context_control(context, SM_I_NETWORK_REQUEST_MODIFY_FAILED, NULL);
+  } /* if (sm_qos_is_minimum_satisfied_by_aim()) */
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_request_in_S5
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_REQUEST in S5
+|
+| Parameters  : context          - Context data
+|               data             - T_D_MODIFY_PDP_CONTEXT_REQUEST *
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_request_in_S5(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_D_MODIFY_PDP_CONTEXT_REQUEST *msg = (T_D_MODIFY_PDP_CONTEXT_REQUEST *)data;
+  T_SM_UPDATE_FLAGS      update_flags;
+
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_request_in_S5");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free coded message */
+  sm_free_coded_msg(context);
+
+  /* Reject currently active UE initiated modification */
+  sm_set_aci_cause(context, CAUSE_is_from_sm, (U16)CAUSE_SM_MODIFY_COLLISION);
+  sm_context_control(context, SM_I_NETWORK_MODIFY_REJECTED, (void *)FALSE);
+
+  if (!sm_is_llc_sapi_valid(msg->llc_sapi.sapi, context->ti))
+  {
+    return;
+  }
+
+  if (sm_qos_is_minimum_satisfied_by_aim(context, &msg->qos))
+  {
+    /* QoS >= minimum QoS: Store negotiated parameters */
+    update_flags = sm_nw_store_mt_modify_parameters(context, msg);
+
+    /* Go to state SM NETWORK ACTIVATED */
+    context->network_control_state = SM_NETWORK_ACTIVATED;
+
+    /* Reply to network: MODIFY PDP CONTEXT ACCEPT */
+    send_msg_modify_pdp_context_accept(context);
+
+    /* Report successful NW initiated context modification */
+    sm_context_control(context, SM_I_NETWORK_REQUEST_MODIFY,
+                       (void *)update_flags);
+  } else {
+    /* Minimum QoS not satisfied - go to state SM NETWORK DEACTIVATING */
+    context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+    /* Start deactivation, T3390 */
+    sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+    sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+    /* Report failed activation to Context Control */
+    sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+    sm_context_control(context, SM_I_NETWORK_REQUEST_MODIFY_FAILED, NULL);
+  } /* if (sm_qos_is_minimum_satisfied_by_aim()) */
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_request_in_S6
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_REQUEST in S6
+|
+| Parameters  : context          - Context data
+|               data             - T_MODIFY_PDP_CONTEXT_REQUEST * (unused)
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_request_in_S6(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/ void *data)
+{
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_request_in_S6");
+
+  /* Free coded message */
+  sm_free_coded_msg(context);
+
+  /* Reject currently active UE initiated modification */
+  sm_set_aci_cause(context, CAUSE_is_from_sm, (U16)CAUSE_SM_MODIFY_COLLISION);
+  sm_context_control(context, SM_I_NETWORK_MODIFY_REJECTED, (void *)FALSE);
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Stop T3381, start T3390, and send DEACTIVATE PDP CONTEXT REQUEST message */
+  sm_set_nw_cause(context, CAUSE_is_from_nwsm,
+                  (U16)CAUSE_NWSM_MSG_INCOMPATIBLE_WITH_STATE);
+  sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+  /* Inform Context Control of the failed modification */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm,
+                   (U16)CAUSE_NWSM_MSG_INCOMPATIBLE_WITH_STATE);
+  sm_context_control(context, SM_I_NETWORK_REQUEST_MODIFY_FAILED, NULL);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_accept_in_S3
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_ACCEPT in S3
+|
+| Parameters  : context          - Context data
+|               data             - T_D_MODIFY_PDP_CONTEXT_ACCEPT *
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_accept_in_S3(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_D_MODIFY_PDP_CONTEXT_ACCEPT *msg = (T_D_MODIFY_PDP_CONTEXT_ACCEPT *)data;
+  T_SM_UPDATE_FLAGS     update_flags;
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_accept_in_S3");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Stop timer T3381 */
+  sm_timer_stop(context);
+
+  /* Store GSM RAT parameters, if present */
+  update_flags = sm_nw_store_modify_accept_parameters(context, msg);
+
+  if (msg->v_qos != (U8)FALSE)
+  {
+    update_flags       |= SM_UPDATE_QOS;
+    /* We requested no new QoS, but received one nontheless. */
+    if (sm_qos_is_minimum_satisfied_by_aim(context, &msg->qos))
+    {
+      /* QoS >= minimum QoS: Store negotiated parameters */
+      sm_qos_assign_from_aim(&context->accepted_qos, &msg->qos);
+    } else {
+      /* Minimum QoS no longer satisfied: Abort activation */
+      sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+      sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+      context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+      sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+      /* Report failed activation to Context Control (with network deactivation) */
+      sm_context_control(context, SM_I_NETWORK_ACTIVATE_REJECTED, (void *)TRUE);
+      return;
+    } /* if (sm_qos_is_minimum_satisfied_by_aim) */
+  }
+
+  if (sm_tft_more_to_modify(context))
+  {
+    /* Start T3381 */
+    sm_timer_start(context, SM_TIMER_T3381);
+    /* Send MODIFY PDP CONTEXT REQUEST with remaining TFTs */
+    send_msg_modify_pdp_context_request(context);
+  } else {
+    /* No more TFTs to add: go to state SM NETWORK ACTIVATED, and inform Context Control */
+    context->network_control_state = SM_NETWORK_ACTIVATED;
+
+    sm_context_control(context, SM_I_NETWORK_ACTIVATE_COMPLETED,
+                       (void *)update_flags);
+  }
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_accept_in_S5
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_ACCEPT in S5
+|
+| Parameters  : context          - Context data
+|               data             - T_D_MODIFY_PDP_CONTEXT_ACCEPT *
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_accept_in_S5(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_D_MODIFY_PDP_CONTEXT_ACCEPT *msg = (T_D_MODIFY_PDP_CONTEXT_ACCEPT *)data;
+  T_SM_UPDATE_FLAGS     update_flags = (T_SM_UPDATE_FLAGS)0;
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_accept_in_S5");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Stop timer T3381 */
+  sm_timer_stop(context);
+
+  /* Store GSM RAT parameters, if present */
+  update_flags = sm_nw_store_modify_accept_parameters(context, msg);
+
+  if (msg->v_qos != (U8)FALSE)
+  {
+    /* QoS updated */
+    if (sm_qos_is_minimum_satisfied_by_aim(context, &msg->qos))
+    {
+      /* QoS >= minimum QoS: Store negotiated parameters */
+      sm_qos_assign_from_aim(&context->accepted_qos, &msg->qos);
+      update_flags     |= SM_UPDATE_QOS;
+    } else {
+      /* Minimum QoS no longer satisfied: Deactivate */
+      sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+      sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+      context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+      sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+      sm_context_control(context, SM_I_NETWORK_MODIFY_REJECTED, (void *)FALSE);
+      return;
+    } /* if (sm_qos_is_minimum_satisfied_by_aim) */
+  } else {
+    /* Check that minimum QoS is still satisfied by current QoS */
+    if (!sm_qos_is_minimum_satisfied_by_sm(context, &context->accepted_qos))
+    {
+      /* Minimum QoS no longer satisfied: Deactivate */
+      sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+      sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+      context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+      sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+      sm_context_control(context, SM_I_NETWORK_MODIFY_REJECTED, (void *)TRUE);
+
+      return;
+    }
+  }
+
+  if (sm_tft_more_to_modify(context))
+  {
+    /* Start T3381 */
+    sm_timer_start(context, SM_TIMER_T3381);
+    /* Send MODIFY PDP CONTEXT REQUEST with more TFTs */
+    send_msg_modify_pdp_context_request(context);
+
+    context->network_control_state = SM_NETWORK_MODIFYING_ADDITIONAL_TFTS;
+  } else {
+    /* No more TFTs to add: Modification completed. */
+    /* Go to state SM NETWORK ACTIVATED, and inform Context Control */
+    context->network_control_state = SM_NETWORK_ACTIVATED;
+
+    sm_context_control(context, SM_I_NETWORK_MODIFY_COMPLETED,
+                       (void *)update_flags);
+  }
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_accept_in_S6
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_ACCEPT in S6
+|
+| Parameters  : context          - Context data
+|               data             - T_D_MODIFY_PDP_CONTEXT_ACCEPT *
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_accept_in_S6(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_D_MODIFY_PDP_CONTEXT_ACCEPT *msg = (T_D_MODIFY_PDP_CONTEXT_ACCEPT *)data;
+  T_SM_UPDATE_FLAGS     update_flags = (T_SM_UPDATE_FLAGS)0;
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_accept_in_S6");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Stop timer T3381 */
+  sm_timer_stop(context);
+
+  /* Store GSM RAT parameters, if present */
+  update_flags = sm_nw_store_modify_accept_parameters(context, msg);
+
+  if (msg->v_qos != (U8)FALSE)
+  {
+    /* We requested no new QoS, but received one nontheless. */
+    if (sm_qos_is_minimum_satisfied_by_aim(context, &msg->qos))
+    {
+      /* QoS >= minimum QoS: Store negotiated parameters */
+      sm_qos_assign_from_aim(&context->accepted_qos, &msg->qos);
+      update_flags     |= SM_UPDATE_QOS;
+    } else {
+      /* Minimum QoS no longer satisfied: Deactivate */
+      sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+      sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+      context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+      sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_QOS_NOT_ACCEPTED);
+      sm_context_control(context, SM_I_NETWORK_MODIFY_REJECTED, (void *)TRUE);
+
+      return;
+    } /* if (sm_qos_is_minimum_satisfied_by_aim) */
+  }
+
+  if (sm_tft_more_to_modify(context))
+  {
+    /* Start T3381 */
+    sm_timer_start(context, SM_TIMER_T3381);
+    /* Send MODIFY PDP CONTEXT REQUEST with remaining TFTs */
+    send_msg_modify_pdp_context_request(context);
+  } else {
+    /* No more TFTs to add: Modification completed. */
+    /* Go to state SM NETWORK ACTIVATED, and inform Context Control */
+    context->network_control_state = SM_NETWORK_ACTIVATED;
+
+    sm_context_control(context, SM_I_NETWORK_MODIFY_COMPLETED,
+                       (void *)update_flags);
+  }
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_reject_in_S3
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_REJECT in S3
+|
+| Parameters  : context          - Context data
+|               data             - T_MODIFY_PDP_CONTEXT_REJECT *
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_reject_in_S3(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_MODIFY_PDP_CONTEXT_REJECT *msg = (T_MODIFY_PDP_CONTEXT_REJECT *)data;
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_reject_in_S3");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Save cause value for ACI */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)msg->sm_cause.sm_cause_val);
+
+  /* Stop T3381, start T3390, and send DEACTIVATE PDP CONTEXT REQUEST message */
+  sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_REGULAR_DEACTIVATION);
+  sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+  /* Inform Context Control of the failed activation (with network deactivation) */
+  sm_context_control(context, SM_I_NETWORK_ACTIVATE_REJECTED, (void *)TRUE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_reject_in_S5
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_REJECT in S5
+|
+| Parameters  : context          - Context data
+|               data             - T_MODIFY_PDP_CONTEXT_REJECT *
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_reject_in_S5(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_MODIFY_PDP_CONTEXT_REJECT *msg = (T_MODIFY_PDP_CONTEXT_REJECT *)data;
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_reject_in_S5");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Save cause value for ACI */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)msg->sm_cause.sm_cause_val);
+
+  /* Stop T3381, start T3390, and send DEACTIVATE PDP CONTEXT REQUEST message */
+  sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_REGULAR_DEACTIVATION);
+  sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+  /* Inform Context Control of the failed modification */
+  sm_context_control(context, SM_I_NETWORK_MODIFY_REJECTED, (void *)TRUE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_modify_pdp_context_reject_in_S6
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_MODIFY_PDP_CONTEXT_REJECT in S6
+|
+| Parameters  : context          - Context data
+|               data             - T_MODIFY_PDP_CONTEXT_REJECT *
++------------------------------------------------------------------------------
+*/
+static void handle_modify_pdp_context_reject_in_S6(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_MODIFY_PDP_CONTEXT_REJECT *msg = (T_MODIFY_PDP_CONTEXT_REJECT *)data;
+  (void)TRACE_FUNCTION("handle_modify_pdp_context_reject_in_S6");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Save cause value for ACI */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)msg->sm_cause.sm_cause_val);
+
+  /* Stop T3381, start T3390, and send DEACTIVATE PDP CONTEXT REQUEST message */
+  sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_REGULAR_DEACTIVATION);
+  sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+  /* Inform Context Control of the failed modification */
+  sm_context_control(context, SM_I_NETWORK_MODIFY_REJECTED, (void *)TRUE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_deactivate_pdp_context_request_while_active
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST in S1 - S6
+|
+| Parameters  : context          - Context data
+|               data             - T_DEACTIVATE_PDP_CONTEXT_REQUEST *
++------------------------------------------------------------------------------
+*/
+static void handle_deactivate_pdp_context_request_while_active(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  BOOL tear_down;
+  T_DEACTIVATE_PDP_CONTEXT_REQUEST *msg = (T_DEACTIVATE_PDP_CONTEXT_REQUEST *)data;
+  (void)TRACE_FUNCTION("handle_deactivate_pdp_context_request_while_active");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Stop any active timers */
+  sm_timer_stop(context);
+
+  /* Free stored coded message - if any */
+  sm_free_coded_msg(context);
+
+  if (msg->v_tear_down != (U8)FALSE && msg->tear_down.tear_down_flag == (U8)1)
+  {
+    tear_down = TRUE;
+    /* Mark linked contexts as inactive */
+    sm_nw_mark_nsapi_set_inactive(sm_linked_nsapis(context->ti));
+  } else {
+    tear_down = FALSE;
+  };
+
+  /* Mark context as inactive */
+  sm_nw_mark_context_inactive(context->nsapi);
+
+  /* Save cause for ACI */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)msg->sm_cause.sm_cause_val);
+
+  /* Send DEACTIVATE PDP CONTEXT ACCEPT message */
+  send_msg_deactivate_pdp_context_accept(context);
+
+  /* Go to state SM NETWORK DEACTIVATED */
+  context->network_control_state = SM_NETWORK_DEACTIVATED;
+
+  /* Report deactivation to Context Control */
+  sm_context_control(context, SM_I_NETWORK_REQUEST_DEACTIVATE, (void *)tear_down);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_deactivate_pdp_context_request_while_deactivating
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST in S7
+|
+| Parameters  : context          - Context data
+|               data             - T_DEACTIVATE_PDP_CONTEXT_REQUEST *
++------------------------------------------------------------------------------
+*/
+static void handle_deactivate_pdp_context_request_while_deactivating(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
+{
+  T_DEACTIVATE_PDP_CONTEXT_REQUEST *msg = (T_DEACTIVATE_PDP_CONTEXT_REQUEST *)data;
+  (void)TRACE_FUNCTION("handle_deactivate_pdp_context_request_while_deactivating");
+
+  TRACE_ASSERT(msg != NULL);
+
+  if (msg EQ NULL)
+    return;
+
+  /* Save cause for ACI */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)msg->sm_cause.sm_cause_val);
+
+  /* Send DEACTIVATE PDP CONTEXT ACCEPT message */
+  send_msg_deactivate_pdp_context_accept(context);
+
+  /* Report deactivation to Context Control iff tear_down == TRUE */
+  if (msg->v_tear_down != (U8)FALSE && msg->tear_down.tear_down_flag == (U8)1)
+  {
+    sm_context_control(context, SM_I_NETWORK_REQUEST_DEACTIVATE, (void *)TRUE);
+  }
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_deactivate_pdp_context_accept
++------------------------------------------------------------------------------
+| Description : Handle event SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT in S7
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void handle_deactivate_pdp_context_accept(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/ void *data)
+{
+  (void)TRACE_FUNCTION("handle_deactivate_pdp_context_accept");
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Stop T3390 */
+  sm_timer_stop(context);
+
+  /* Go to state SM NETWORK DEACTIVATED */
+  context->network_control_state = SM_NETWORK_DEACTIVATED;
+
+  /* Mark context as inactive */
+  sm_nw_mark_context_inactive(context->nsapi);
+
+  /* Report deactivate complete to Context Control */
+  sm_context_control(context, SM_I_NETWORK_DEACTIVATE_COMPLETED, NULL);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_T3380
++------------------------------------------------------------------------------
+| Description : Handle event SM_T_T3380
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void handle_T3380(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/void *data)
+{
+  (void)TRACE_FUNCTION("handle_T3380");
+
+  /* If SM is not suspended, resend ACTIVATE (SECONDARY) PDP CONTEXT REQUEST */
+  resend_msg(context);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_T3380_max
++------------------------------------------------------------------------------
+| Description : Handle event SM_T_T3380_MAX
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void handle_T3380_max(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/void *data)
+{
+  (void)TRACE_FUNCTION("handle_T3380_max");
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Go to state SM NETWORK DEACTIVATED */
+  context->network_control_state = SM_NETWORK_DEACTIVATED;
+
+  /* Inform Context Control of the failed activation (no network deactivation) */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_NETWORK_FAILURE);
+  sm_context_control(context, SM_I_NETWORK_ACTIVATE_REJECTED, (void *)FALSE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_T3381
++------------------------------------------------------------------------------
+| Description : Handle event SM_T_T3381
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void handle_T3381(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/void *data)
+{
+  (void)TRACE_FUNCTION("handle_T3381");
+
+  /* If SM is not suspended, resend MODIFY PDP CONTEXT REQUEST */
+  resend_msg(context);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_T3381_max_in_S3
++------------------------------------------------------------------------------
+| Description : Handle event SM_T_T3381_MAX in S3
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void handle_T3381_max_in_S3(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/void *data)
+{
+  (void)TRACE_FUNCTION("handle_T3381_max_in_S3");
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Initiate deactivation */
+  sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_REGULAR_DEACTIVATION);
+  sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+  /* Inform Context Control of the failed activation */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_NETWORK_FAILURE);
+  sm_context_control(context, SM_I_NETWORK_ACTIVATE_REJECTED, (void *)TRUE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_T3381_max_in_S5
++------------------------------------------------------------------------------
+| Description : Handle event SM_T_T3381_MAX in S5
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void handle_T3381_max_in_S5(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/void *data)
+{
+  (void)TRACE_FUNCTION("handle_T3381_max_in_S5");
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Modify procedure has failed, but the context remains active. */
+  /* Go to state SM NETWORK ACTIVATED */
+  context->network_control_state = SM_NETWORK_ACTIVATED;
+
+  /* Inform Context Control of the failed activation */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_NETWORK_FAILURE);
+  sm_context_control(context, SM_I_NETWORK_MODIFY_REJECTED, (void *)FALSE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_T3381_max_in_S6
++------------------------------------------------------------------------------
+| Description : Handle event SM_T_T3381_MAX in S6
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void handle_T3381_max_in_S6(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/void *data)
+{
+  (void)TRACE_FUNCTION("handle_T3381_max_in_S6");
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Go to state SM NETWORK DEACTIVATING */
+  context->network_control_state = SM_NETWORK_DEACTIVATING;
+
+  /* Initiate deactivation */
+  sm_set_nw_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_REGULAR_DEACTIVATION);
+  sm_nw_initiate_deactivation(context, sm_get_nw_cause(context));
+
+  /* Inform Context Control of the failed activation */
+  sm_set_aci_cause(context, CAUSE_is_from_nwsm, (U16)CAUSE_NWSM_NETWORK_FAILURE);
+  sm_context_control(context, SM_I_NETWORK_MODIFY_REJECTED, (void *)TRUE);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_T3390
++------------------------------------------------------------------------------
+| Description : Handle event SM_T_T3390
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void handle_T3390(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/void *data)
+{
+  (void)TRACE_FUNCTION("handle_T3390");
+
+  /* If SM is not suspended, resend DEACTIVATE PDP CONTEXT REQUEST */
+  resend_msg(context);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_T3390_max
++------------------------------------------------------------------------------
+| Description : Handle event SM_T_T3390_MAX
+|
+| Parameters  : context          - Context data
+|               data             - Not used
++------------------------------------------------------------------------------
+*/
+static void handle_T3390_max(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/void *data)
+{
+  (void)TRACE_FUNCTION("handle_T3390_max");
+
+  /* Free stored coded message */
+  sm_free_coded_msg(context);
+
+  /* Go to state SM NETWORK DEACTIVATED */
+  context->network_control_state = SM_NETWORK_DEACTIVATED;
+
+  /* Context is considered deactivated.  Inform Context Control. */
+  sm_context_control(context, SM_I_NETWORK_DEACTIVATE_COMPLETED, NULL);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_mmpm_suspend_ind
++------------------------------------------------------------------------------
+| Description : Handle incoming MMPM_SUSPEND_IND primitive
+|
+| Parameters  : context         - Context data
+|               data            - Unused
++------------------------------------------------------------------------------
+*/
+static void handle_mmpm_suspend_ind(/*@unused@*/struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/ void *data)
+{
+  (void)TRACE_FUNCTION("handle_mmpm_suspend_ind");
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : handle_mmpm_resume_ind
++------------------------------------------------------------------------------
+| Description : Handle incoming MMPM_RESUME_IND primitive
+|
+| Parameters  : context         - Context data
+|               data            - Unused
++------------------------------------------------------------------------------
+*/
+static void handle_mmpm_resume_ind(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/ void *data)
+{
+  (void)TRACE_FUNCTION("handle_mmpm_resume_ind");
+
+  if (sm_is_started_during_suspend(context))
+  {
+    resend_msg(context);
+    sm_clear_started_during_suspend(context);
+  }
+}
+
+/*==== PUBLIC FUNCTIONS =====================================================*/
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_network_control_init
++------------------------------------------------------------------------------
+| Description : Network Control state machine initialization function
+
+| Parameters  : context  - Context data
++------------------------------------------------------------------------------
+*/
+void sm_network_control_init(struct T_SM_CONTEXT_DATA *context)
+{
+  (void)TRACE_FUNCTION("sm_network_control_init");
+
+  context->network_control_state = SM_NETWORK_DEACTIVATED;
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_network_control_exit
++------------------------------------------------------------------------------
+| Description : Network Control state machine exit function
+
+| Parameters  : context  - Context data
++------------------------------------------------------------------------------
+*/
+void sm_network_control_exit(struct T_SM_CONTEXT_DATA *context)
+{
+  (void)TRACE_FUNCTION("sm_network_control_exit");
+
+  context->network_control_state = SM_NETWORK_DEACTIVATED;
+
+  /* Free any memory allocated to this context (fields managed by Network Control) */
+  sm_free_coded_msg(context);
+  sm_nw_free_apn(context);
+  sm_nw_free_requested_tft(context);
+  sm_nw_free_active_tft(context);
+  sm_nw_free_requested_pco(context);
+  sm_nw_free_negotiated_pco(context);
+}
+
+/*
++------------------------------------------------------------------------------
+| Function    : sm_network_control_state
++------------------------------------------------------------------------------
+| Description : Returns a read-only string with the name of the active state.
+
+| Parameters  : context  - Context data
++------------------------------------------------------------------------------
+*/
+#ifdef DEBUG
+/*@observer@*/const char *
+sm_network_control_state(struct T_SM_CONTEXT_DATA *context)
+{
+  /*@observer@*/
+  static const char *state_name[SM_NETWORK_CONTROL_NUMBER_OF_STATES] = {
+    "S0_SM_NETWORK_DEACTIVATED",
+    "S1_SM_NETWORK_ACTIVATING_PRIMARY",
+    "S2_SM_NETWORK_ACTIVATING_SECONDARY",
+    "S3_SM_NETWORK_ACTIVATING_ADDING_TFTS",
+    "S4_SM_NETWORK_ACTIVATED",
+    "S5_SM_NETWORK_MODIFYING",
+    "S6_SM_NETWORK_MODIFYING_ADDITIONAL_TFTS",
+    "S7_SM_NETWORK_DEACTIVATING"
+  };
+
+  TRACE_ASSERT(context->network_control_state < SM_NETWORK_CONTROL_NUMBER_OF_STATES);
+
+  return state_name[(U16)context->network_control_state];
+}
+#endif
+/*
++------------------------------------------------------------------------------
+| Function    : sm_network_control
++------------------------------------------------------------------------------
+| Description : User Plane Control state machine
+|
+| Parameters  : context          - Context data
+|               event            - Internal event (see sm_network_control.h)
+|               data             - Event dependent parameter
++------------------------------------------------------------------------------
+*/
+void sm_network_control(struct T_SM_CONTEXT_DATA *context,
+                        T_SM_NETWORK_CONTROL_EVENT event,
+                        /*@null@*/ void *data)
+{
+#ifdef DEBUG
+  const char *old_state_name, *new_state_name;
+  T_SM_NETWORK_CONTROL_STATE old_state;
+  /*@observer@*/
+  static const char *event_name[SM_NETWORK_CONTROL_NUMBER_OF_EVENTS] = {
+    "SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT",
+    "SM_M_ACTIVATE_PDP_CONTEXT_REJECT",
+    "SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT",
+    "SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT",
+    "SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST",
+    "SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT",
+    "SM_M_MODIFY_PDP_CONTEXT_REQUEST",
+    "SM_M_MODIFY_PDP_CONTEXT_ACCEPT",
+    "SM_M_MODIFY_PDP_CONTEXT_REJECT",
+    "SM_M_REQUEST_PDP_CONTEXT_ACTIVATION",
+    "SM_M_SM_STATUS",
+    "SM_P_MMPM_RESUME_IND",
+    "SM_P_MMPM_SUSPEND_IND",
+    "SM_T_T3380",
+    "SM_T_T3380_MAX",
+    "SM_T_T3381",
+    "SM_T_T3381_MAX",
+    "SM_T_T3390",
+    "SM_T_T3390_MAX",
+    "SM_I_NETWORK_ACTIVATE_PRIMARY",
+    "SM_I_NETWORK_ACTIVATE_SECONDARY",
+    "SM_I_NETWORK_DEACTIVATE_LOCAL",
+    "SM_I_NETWORK_MODIFY",
+    "SM_I_NETWORK_REQUEST_ACTIVATION_REJECT",
+    "SM_I_NETWORK_DEACTIVATE"
+  };
+
+  TRACE_ASSERT(event < SM_NETWORK_CONTROL_NUMBER_OF_EVENTS);
+
+  old_state = context->network_control_state;
+  old_state_name = sm_network_control_state(context);
+
+  if (transition[(U16)old_state][(U16)event].event != event)
+  {
+    (void)TRACE_ERROR("Event table error in sm_network_control!");
+  }
+#endif /* DEBUG */
+
+  transition[(U16)context->network_control_state][(U16)event].func(context, data);
+
+#ifdef DEBUG
+  new_state_name = sm_network_control_state(context);
+
+  (void)TRACE_EVENT_P4("SM NETWORK #%d: %s => %s to %s", context->nsapi,
+                       event_name[(U16)event], old_state_name, new_state_name);
+#endif /* DEBUG */
+}
+
+/*==== END OF FILE ==========================================================*/