FreeCalypso > hg > fc-magnetite
annotate src/g23m-gprs/sm/sm_dispatch_message.c @ 405:909fe8b92b26
components/tpudrv: support RF 10 or 12
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 18 Jan 2018 02:53:31 +0000 |
parents | 219afcfc6250 |
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rev | line source |
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1 /*---------------------------------------------------------------------------- |
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2 | Project : 3G PS |
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3 | Module : SM |
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4 +----------------------------------------------------------------------------- |
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5 | Copyright 2003 Texas Instruments. |
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6 | All rights reserved. |
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7 | |
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8 | This file is confidential and a trade secret of Texas |
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9 | Instruments . |
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10 | The receipt of or possession of this file does not convey |
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11 | any rights to reproduce or disclose its contents or to |
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12 | manufacture, use, or sell anything it may describe, in |
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13 | whole, or in part, without the specific written consent of |
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14 | Texas Instruments. |
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15 +----------------------------------------------------------------------------- |
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16 | Purpose: This module implements the process dispatcher for incoming |
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17 | air interface messages in the Session Management (SM) entity. |
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18 | For design details, see: |
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19 | 8010.908 SM Detailed Specification |
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20 +---------------------------------------------------------------------------*/ |
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21 |
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22 /*==== DECLARATION CONTROL =================================================*/ |
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23 |
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24 /*==== INCLUDES =============================================================*/ |
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25 |
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26 #include "sm.h" |
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27 #include "ccdapi.h" |
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28 |
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29 #include "sm_network_control.h" |
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30 #include "sm_aci_output_handler.h" |
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31 #include "sm_mm_output_handler.h" |
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32 |
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33 /*==== CONSTS ===============================================================*/ |
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34 |
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35 /*==== TYPES ================================================================*/ |
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36 |
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37 /*==== LOCALS ===============================================================*/ |
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38 |
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39 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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40 |
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41 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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42 |
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43 /* |
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44 +------------------------------------------------------------------------------ |
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45 | Function : sm_disp_mmpm_unitdata_ind |
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46 +------------------------------------------------------------------------------ |
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47 | Description : Dispatch MMPM_UNITDATA_IND |
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48 | |
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49 | Parameters : prim - received primitive |
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50 +------------------------------------------------------------------------------ |
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51 */ |
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52 void sm_disp_mmpm_unitdata_ind(T_MMPM_UNITDATA_IND *prim) |
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53 { |
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54 U8 ti, ti_flag, msg_type, *msg, ccdResult; |
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55 U16 offset; |
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56 struct T_SM_CONTEXT_DATA *context; |
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57 T_CAUSE_ps_cause cause; |
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58 |
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59 (void)TRACE_FUNCTION("sm_disp_mmpm_unitdata_ind"); |
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60 |
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61 offset = (U16)(prim->sdu.o_buf + 7) >> 3; /* Offset in octets/bytes in message buffer */ |
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62 msg = &prim->sdu.buf[offset]; |
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63 |
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64 /* Read L3 header: First TI/PD octet */ |
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65 ti_flag = (msg[0] & SM_TI_FLAG) == (U8)0 ? (U8)SM_TI_FLAG : (U8)0; |
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66 ti = (msg[0] >> 4) & SM_TI_NON_EXT_MASK; |
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67 |
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68 /* Check for extended TI: If TI == 7, read next octet for real TI */ |
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69 if (ti == (U8)SM_TI_EXTEND_VALUE) { |
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70 ti = msg[1]; /* Read real TI from next octet in message */ |
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71 |
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72 if ((ti & (U8)SM_TI_FLAG) == (U8)0) { |
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73 /* Messages with TI EXT bit = 0 shall be ignored: [3G 24.008, 8.3.2] */ |
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74 (void)TRACE_ERROR("Warning: TI EXT bit = 0 in message - message ignored!"); |
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75 return; |
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76 } else { |
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77 ti &= SM_TI_MASK; |
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78 } |
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79 offset = (U16)16; /* # bits to advance message pointer to reach message type */ |
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80 msg_type = msg[2]; /* Get message type octet after TI */ |
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81 (void)TRACE_EVENT_P1(" Extended TI found: 0x%02x", ti); |
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82 } else { |
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83 offset = (U16)8; /* # bits to advance message pointer to reach message type */ |
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84 (void)TRACE_EVENT_P1(" Non-extended TI found: 0x%02x", ti); |
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85 msg_type = msg[1]; /* Get message type octet after TI */ |
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86 } |
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87 /* Set highest bit iff the direction flag bit was set above */ |
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88 ti |= ti_flag; |
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89 /* Advance message pointer past TI/PD octet(s) */ |
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90 prim->sdu.l_buf -= offset; |
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91 prim->sdu.o_buf += offset; |
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92 |
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93 /* Check for message too short: [3G 24.008, 8.2] */ |
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94 if (prim->sdu.l_buf < (U16)8) { |
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95 (void)TRACE_ERROR("Warning! Message too short - discarded..."); |
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96 return; |
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97 } |
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98 |
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99 /* Find context with TI = ti, if already active/being activated */ |
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100 context = sm_get_context_data_from_ti(ti); |
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101 |
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102 switch (msg_type) { |
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103 case ACTIVATE_PDP_CONTEXT_ACCEPT: |
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104 case ACTIVATE_PDP_CONTEXT_REJECT: |
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105 case ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT: |
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106 case ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT: |
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107 case D_MODIFY_PDP_CONTEXT_REQUEST: |
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108 case D_MODIFY_PDP_CONTEXT_ACCEPT: |
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109 case MODIFY_PDP_CONTEXT_REJECT: |
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110 case DEACTIVATE_PDP_CONTEXT_REQUEST: |
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111 case DEACTIVATE_PDP_CONTEXT_ACCEPT: |
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112 if (context == NULL) { |
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113 /* Message received on TI not relating to an active context, or context |
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114 * being activated/deactivated: [3G 24.008, 8.3.2 b)]*/ |
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115 (void)TRACE_ERROR("Message received on TI not relating to an active context, or context being activated/deactivated"); |
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116 cause.ctrl_value = CAUSE_is_from_nwsm; |
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117 cause.value.nwsm_cause = (U16)CAUSE_NWSM_INVALID_TI; |
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118 send_msg_sm_status(ti, &cause); |
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119 return; |
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120 } |
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121 break; |
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122 case REQUEST_PDP_CONTEXT_ACTIVATION: |
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123 if (ti_flag == (U8)0) { |
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124 /* Ignore REQUEST PDP CONTEXT ACTIVATION msg with TI flag = 1 [3G 24.008, 8.3.2 c)] */ |
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125 /* Note: flag bit is inverted above! */ |
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126 (void)TRACE_EVENT("REQUEST PDP CONTEXT ACTIVATION msg with TI flag = 1 ignored..."); |
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127 return; |
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128 } |
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129 if (context == NULL) { |
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130 /* If no context exists for the TI, create one. */ |
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131 context = sm_insert_mt_context_data(ti); |
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132 } |
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133 break; |
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134 case SM_STATUS: |
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135 if (context == NULL) { |
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136 /* Silently ignore message */ |
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137 return; |
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138 } |
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139 break; |
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140 case ACTIVATE_PDP_CONTEXT_REQUEST: /* FALL-THROUGH */ |
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141 case ACTIVATE_SECONDARY_PDP_CONTEXT_REQUEST: /* FALL-THROUGH */ |
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142 case REQUEST_PDP_CONTEXT_ACTIVATION_REJECT: /* FALL-THROUGH */ |
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143 case U_MODIFY_PDP_CONTEXT_REQUEST: /* FALL-THROUGH */ |
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144 case U_MODIFY_PDP_CONTEXT_ACCEPT: /* FALL-THROUGH */ |
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145 default: |
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146 /* Message type not defined for the PD in the given direction: [3G 24.008, 8.4] */ |
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147 (void)TRACE_ERROR("Message type not defined for the PD in the given direction"); |
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148 cause.ctrl_value = CAUSE_is_from_nwsm; |
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149 cause.value.nwsm_cause = (U16)CAUSE_NWSM_MSG_TYPE_NOT_IMPLEMENTED; |
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150 send_msg_sm_status(ti, &cause); |
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151 return; |
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152 } /* switch */ |
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153 |
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154 TRACE_ASSERT(context != NULL); |
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155 |
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156 /* Decode message */ |
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157 ccdResult = ccd_decodeMsg((U8)CCDENT_SM, |
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158 (U8)DOWNLINK, |
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159 (T_MSGBUF *)&prim->sdu, |
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160 (UBYTE *) _decodedMsg, |
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161 (U8)NOT_PRESENT_8BIT); |
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162 |
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163 if (ccdResult != (U8)ccdOK) { |
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164 /* Error Handling */ |
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165 U16 parlist[6]; |
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166 U8 first_err; |
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167 U8 ccd_err; |
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168 |
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169 /* clear parlist */ |
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170 memset (parlist, 0, sizeof (parlist)); |
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171 first_err = ccd_getFirstError((U8)CCDENT_SM, parlist); |
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172 |
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173 ccd_err = first_err; |
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174 /* Loop over errors in parlist. Fix inherited from TI Berlin. */ |
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175 do |
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176 { |
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177 /* Error Handling */ |
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178 switch (ccd_err) { |
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|
179 case ERR_COMPREH_REQUIRED: /* Comprehension required */ |
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180 case ERR_MAND_ELEM_MISS: { /* Mandatory elements missing */ |
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|
181 (void)TRACE_ERROR("CCD ERROR: Mandatory elements missing"); |
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182 if (msg_type == (U8)DEACTIVATE_PDP_CONTEXT_REQUEST) { |
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|
183 /* [3G 24.008, 8.5.5]: If msg_type is DEACTIVATE PDP CONTEXT REQUEST, |
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|
184 * respond with DEACTIVATE PDP CONTEXT ACCEPT and release context. */ |
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|
185 send_msg_deactivate_pdp_context_accept(context); |
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186 } else if (msg_type == (U8)REQUEST_PDP_CONTEXT_ACTIVATION) { |
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|
187 /* [3G 24.008, 8.5.5]: If msg_type is REQUEST PDP CONTEXT ACTIVATION, |
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|
188 * respond with SM STATUS, cause #96 "invalid mandatory information". */ |
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189 cause.ctrl_value = CAUSE_is_from_nwsm; |
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190 cause.value.nwsm_cause = (U16)CAUSE_NWSM_INVALID_MANDATORY_ELEMENT; |
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|
191 send_msg_sm_status(ti, &cause); |
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192 return; |
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193 } else { |
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194 cause.ctrl_value = CAUSE_is_from_nwsm; |
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195 cause.value.nwsm_cause = (U16)CAUSE_NWSM_INVALID_MANDATORY_ELEMENT; |
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196 send_msg_sm_status(ti, &cause); |
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197 return; |
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198 } |
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199 /*@switchbreak@*/ |
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200 break; |
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201 } |
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202 } /* switch */ |
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203 ccd_err = ccd_getNextError ((U8)CCDENT_SM, parlist); |
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parents:
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204 } while (ccd_err != (U8)ERR_NO_MORE_ERROR); |
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205 } /* if (ccdResult...) */ |
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206 |
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207 switch (msg_type) { |
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208 case ACTIVATE_PDP_CONTEXT_ACCEPT: |
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209 /* Forward to Network Control */ |
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210 sm_network_control(context, SM_M_ACTIVATE_PDP_CONTEXT_ACCEPT, _decodedMsg); |
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211 break; |
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212 case ACTIVATE_PDP_CONTEXT_REJECT: |
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213 /* Forward to Network Control */ |
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214 sm_network_control(context, SM_M_ACTIVATE_PDP_CONTEXT_REJECT, _decodedMsg); |
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215 break; |
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216 case ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT: |
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217 /* Forward to Network Control */ |
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218 sm_network_control(context, SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_ACCEPT, _decodedMsg); |
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219 break; |
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220 case ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT: |
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221 /* Forward to Network Control */ |
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222 sm_network_control(context, SM_M_ACTIVATE_SECONDARY_PDP_CONTEXT_REJECT, _decodedMsg); |
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223 break; |
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224 case REQUEST_PDP_CONTEXT_ACTIVATION: |
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225 /* Forward to Network Control */ |
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226 sm_network_control(context, SM_M_REQUEST_PDP_CONTEXT_ACTIVATION, _decodedMsg); |
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227 break; |
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228 case D_MODIFY_PDP_CONTEXT_REQUEST: |
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229 /* Forward to Network Control */ |
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230 sm_network_control(context, SM_M_MODIFY_PDP_CONTEXT_REQUEST, _decodedMsg); |
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231 break; |
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232 case D_MODIFY_PDP_CONTEXT_ACCEPT: |
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233 /* Forward to Network Control */ |
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234 sm_network_control(context, SM_M_MODIFY_PDP_CONTEXT_ACCEPT, _decodedMsg); |
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235 break; |
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236 case MODIFY_PDP_CONTEXT_REJECT: |
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237 /* Forward to Network Control */ |
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238 sm_network_control(context, SM_M_MODIFY_PDP_CONTEXT_REJECT, _decodedMsg); |
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239 break; |
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240 case DEACTIVATE_PDP_CONTEXT_REQUEST: |
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241 /* Forward to Network Control */ |
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242 sm_network_control(context, SM_M_DEACTIVATE_PDP_CONTEXT_REQUEST, _decodedMsg); |
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243 break; |
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244 case DEACTIVATE_PDP_CONTEXT_ACCEPT: |
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245 /* Forward to Network Control */ |
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246 sm_network_control(context, SM_M_DEACTIVATE_PDP_CONTEXT_ACCEPT, _decodedMsg); |
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247 break; |
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248 case SM_STATUS: |
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249 /* Forward to Network Control */ |
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250 sm_network_control(context, SM_M_SM_STATUS, _decodedMsg); |
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251 break; |
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252 } /* switch */ |
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253 |
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254 /* Deallocate context if it was marked for deactivation by the above operation */ |
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255 /*lint -e613 (Possible use of null pointer 'context' in left argument to operator '->') */ |
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256 if (sm_is_context_pending_deallocation(context)) { |
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257 sm_free_context_data_by_nsapi(context->nsapi); |
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258 } |
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259 } |
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260 |
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261 /*==== END OF FILE ==========================================================*/ |