--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/g23m-gsm/sim/sim_gprs.c	Fri Oct 16 06:25:50 2020 +0000
@@ -0,0 +1,307 @@
+/* 
++----------------------------------------------------------------------------- 
+|  Project :  GSM-F&D (8411)
+|  Modul   :  SIM_GPRS
++----------------------------------------------------------------------------- 
+|  Copyright 2002 Texas Instruments Berlin, AG 
+|                 All rights reserved. 
+| 
+|                 This file is confidential and a trade secret of Texas 
+|                 Instruments Berlin, AG 
+|                 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 Berlin, AG. 
++----------------------------------------------------------------------------- 
+|  Purpose :  This modul defines the GPRS Upgrade.
++----------------------------------------------------------------------------- 
+*/ 
+
+#ifndef SIM_GPRS_C
+#define SIM_GPRS_C
+
+#define ENTITY_SIM
+
+/*==== INCLUDES ===================================================*/
+
+#include <string.h>
+#include "typedefs.h"
+#include "pcm.h"
+#include "pconst.cdg"
+#include "message.h"
+#include "ccdapi.h"
+#include "vsi.h"
+#include "custom.h"
+#include "gsm.h"
+#include "cnf_sim.h"
+#include "mon_sim.h"
+#include "prim.h"
+#include "pei.h"
+#include "tok.h"
+#include "sim.h"
+
+/*==== EXPORT =====================================================*/
+
+/*==== PRIVAT =====================================================*/
+
+/*==== TYPES ======================================================*/
+
+/*==== CONSTANTS ==================================================*/
+
+/*==== VARIABLES ==================================================*/
+
+/*==== FUNCTIONS ==================================================*/
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (8419)     MODULE  : SIM_GPRS                     |
+| STATE   : code              ROUTINE : gprs_check_pcm_data          |
++--------------------------------------------------------------------+
+
+  PURPOSE : Checks the validation of GPRS data stored in PCM.
+
+*/
+
+GLOBAL BOOL gprs_check_pcm_data (T_imsi_field *sim_imsi)
+{
+  EF_IMSIGPRS imsi;
+  UBYTE       version;
+
+
+  return pcm_ReadFile((UBYTE *)EF_IMSIGPRS_ID, SIZE_EF_IMSIGPRS,
+                      (UBYTE *)&imsi, &version) EQ PCM_OK
+                       AND
+                      (sim_imsi->c_field EQ imsi.len)
+                       AND
+                       !memcmp(imsi.IMSI, sim_imsi->field, sim_imsi->c_field);
+}
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (8419)     MODULE  : SIM_GPRS                     |
+| STATE   : code              ROUTINE : gprs_gmm_insert_ind          |
++--------------------------------------------------------------------+
+
+  PURPOSE : Collects the initial data for GMM.
+
+*/
+
+GLOBAL void gprs_gmm_insert_ind (T_SIM_MM_INSERT_IND * sim_mm_insert_ind)
+{
+  UBYTE  kc_n[MAX_KC_N];
+  int    i;
+  /*
+   * Read Parameters for GPRS mobility management
+   */
+  PALLOC (sim_gmm_insert_ind, SIM_GMM_INSERT_IND);
+
+  TRACE_FUNCTION ("gprs_sim_gmm_insert_ind()");
+
+  /*
+   * administrative data
+   */
+  sim_gmm_insert_ind->op_mode = sim_mm_insert_ind->ad[0];
+
+  /*
+   * IMSI
+   */
+  memcpy (&sim_gmm_insert_ind->imsi_field, &sim_mm_insert_ind->imsi_field,
+          sizeof (T_imsi_field));
+  /*
+   * Location Information
+   */
+  memcpy (&sim_gmm_insert_ind->loc_info, &sim_mm_insert_ind->loc_info,
+          sizeof (T_loc_info));
+  /*
+   * access control classes
+   */
+  memcpy (&sim_gmm_insert_ind->acc_ctrl, &sim_mm_insert_ind->acc_ctrl,
+          sizeof (T_acc_ctrl));
+   /*
+    * phase
+    */
+  sim_gmm_insert_ind->phase = sim_data.sim_phase;
+
+  if (SIM_IS_FLAG_SET (SERVICE_38_SUPPORT))
+  {
+    /*
+     * SIM card supports GPRS
+     *
+     * Read GPRS Location Information
+     */
+    TRACE_EVENT ("SIM supports GPRS");
+  
+    if (FKT_Select (SIM_LOCGPRS, FALSE, NULL, NULL, 0) EQ SIM_NO_ERROR)
+    {
+      sim_gmm_insert_ind->gprs_loc_info.c_loc = MAX_LOCIGPRS;
+      if (FKT_ReadBinary ((UBYTE *)&sim_gmm_insert_ind->gprs_loc_info.loc,
+                          0, MAX_LOCIGPRS) NEQ SIM_NO_ERROR)
+      {
+        PFREE (sim_gmm_insert_ind);
+        return;
+      }
+    }
+    /*
+     * Read GPRS KC
+     */
+    if (FKT_Select (SIM_KCGPRS, FALSE, NULL, NULL, 0) EQ SIM_NO_ERROR)
+    {
+      if (FKT_ReadBinary ((UBYTE *)kc_n, 0, MAX_KC_N) NEQ
+          SIM_NO_ERROR)
+      {
+        PFREE (sim_gmm_insert_ind);
+        return;
+      }
+      else
+      {
+        sim_gmm_insert_ind->kc_n.c_kc = MAX_KC_N;
+        /*
+         * Store KC in opposite order
+         */
+        for (i = 0; i < MAX_KC; i++)
+          sim_gmm_insert_ind->kc_n.kc[(MAX_KC-1)-i] = kc_n[i];
+        /*
+         * Store cipher key sequence number
+         */
+        sim_gmm_insert_ind->kc_n.kc[MAX_KC] = kc_n[MAX_KC];
+      }
+    }
+  }
+  else
+  {
+    /*
+     * Use PCM instead
+     */
+    TRACE_EVENT ("SIM does not support GPRS");
+
+    /*
+     * Only use ME data, when it is marked with IMSI
+     * Note : No storage of the changed IMSI here!
+     */
+    if (gprs_check_pcm_data (&sim_mm_insert_ind->imsi_field))
+    {
+      UBYTE version;
+      /*
+       * then read the fields
+       */
+      pcm_ReadFile((UBYTE *) EF_LOCGPRS_ID,SIZE_EF_LOCGPRS,
+                   (UBYTE *) &sim_gmm_insert_ind->gprs_loc_info.loc, &version);
+      sim_gmm_insert_ind->gprs_loc_info.c_loc = MAX_LOCIGPRS;
+      pcm_ReadFile((UBYTE *) EF_KCGPRS_ID,SIZE_EF_KCGPRS,
+                   (UBYTE *) &sim_gmm_insert_ind->kc_n, &version);
+    }
+    else
+    {
+      /*
+       * reading of IMSI failed, set values to defaults
+       */
+      memset (&sim_gmm_insert_ind->gprs_loc_info.loc, 0xFF, MAX_LOCIGPRS);
+      sim_gmm_insert_ind->gprs_loc_info.loc[11] = 0xFE;
+      sim_gmm_insert_ind->gprs_loc_info.c_loc = 0;
+      memset (&sim_gmm_insert_ind->kc_n, 0xFF, 9);
+    }
+  }
+
+  /*
+   * send information to GPRS mobility management
+   */
+  PSENDX (GMM, sim_gmm_insert_ind);
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6302)       MODULE  : SIM_GPRS                   |
+| STATE   : code                ROUTINE : gprs_gmm_update_req        |
++--------------------------------------------------------------------+
+
+  PURPOSE : Process of the primitive SIM_GMM_UPDATE_REQ.
+
+*/
+
+GLOBAL void gprs_sim_gmm_update_req (T_SIM_GMM_UPDATE_REQ * sim_gmm_update_req)
+{
+  int    i;
+  T_kc_n kc_n;
+
+  TRACE_FUNCTION ("gprs_sim_gmm_update_req()");
+
+  /*
+   * prepare kc and cksn for storing
+   */
+  kc_n.c_kc = MAX_KC_N;
+  kc_n.kc[MAX_KC] = sim_gmm_update_req->cksn;
+  for (i = 0; i < MAX_KC; i++)
+    kc_n.kc[(MAX_KC-1)-i] = sim_gmm_update_req->kc[i];
+
+  /*
+   * SIM with GPRS service activated?
+   */
+  if (SIM_IS_FLAG_SET (SERVICE_38_SUPPORT))
+  {
+  /*
+   * check location information
+   */
+    if (sim_gmm_update_req->gprs_loc_info.c_loc > 0)
+    {
+      if (FKT_Select (SIM_LOCGPRS, FALSE, NULL, NULL, 0) EQ SIM_NO_ERROR)
+        FKT_UpdateBinary (sim_gmm_update_req->gprs_loc_info.loc,
+                          MAX_LOCIGPRS, 0);
+    }
+  /*
+   * store kc and cksn
+   */
+    if (FKT_Select (SIM_KCGPRS, FALSE, NULL, NULL, 0) EQ SIM_NO_ERROR)
+    {
+      FKT_UpdateBinary (kc_n.kc, kc_n.c_kc, 0);
+    }
+  }
+  else
+  {
+    /*
+     * SIM with no GPRS service: store in ME memory
+     */
+    T_imsi_field sim_imsi;
+  
+    if (FKT_Select (SIM_IMSI, FALSE, NULL, NULL, 0) EQ SIM_NO_ERROR AND
+        FKT_ReadBinary ((UBYTE *)&sim_imsi, 0, MAX_IMSI)
+         EQ SIM_NO_ERROR)
+    {
+      /*
+       * Compare IMSI on SIM with IMSI in ME memory
+       */
+      if (!gprs_check_pcm_data (&sim_imsi))
+      {
+        /*
+         * Check GPRS attach status of current IMSI (from SIM)
+         */
+        if (sim_gmm_update_req->att_status)
+          /*
+           * Update IMSI in ME memory, when attached
+           */
+          pcm_WriteFile((UBYTE *)EF_IMSIGPRS_ID, SIZE_EF_IMSIGPRS,
+                        (UBYTE *)&sim_imsi);
+        else
+        {
+          /*
+           * do not update GPRS data
+           */
+          PFREE (sim_gmm_update_req);
+          return;
+        }
+      }
+      /*
+       * Update GPRS data in ME memory
+       */
+      if (sim_gmm_update_req->gprs_loc_info.c_loc > 0)
+      {
+        pcm_WriteFile((UBYTE *)EF_LOCGPRS_ID,SIZE_EF_LOCGPRS,
+                      (UBYTE *)&sim_gmm_update_req->gprs_loc_info.loc);
+      }
+      pcm_WriteFile((UBYTE *)EF_KCGPRS_ID,SIZE_EF_KCGPRS,
+                    (UBYTE *)kc_n.kc);
+    }
+  }
+  PFREE (sim_gmm_update_req);
+}
+
+#endif