FreeCalypso > hg > fc-magnetite

annotate src/gpf3/ccd/asn1_choice.c @ 662:8cd8fd15a095

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SIM speed enhancement re-enabled and made configurable TI's original code supported SIM speed enhancement, but Openmoko had it disabled, and OM's disabling of speed enhancement somehow caused certain SIM cards to start working which didn't work before (OM's bug #666). Because our FC community is much smaller in year 2020 than OM's community was in their day, we are not able to find one of those #666-affected SIMs, thus the real issue they had encountered remains elusive. Thus our solution is to re-enable SIM speed enhancement and simply wait for if and when someone runs into a #666-affected SIM once again. We provide a SIM_allow_speed_enhancement global variable that allows SIM speed enhancement to be enabled or disabled per session, and an /etc/SIM_spenh file in FFS that allows it to enabled or disabled on a non-volatile basis. SIM speed enhancement is now enabled by default.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 24 May 2020 05:02:28 +0000
parents c41a534f33c6
children
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project :
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4 | Modul : asn1_choice.c
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2002 Texas Instruments Berlin, AG
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7 | All rights reserved.
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8 |
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9 | This file is confidential and a trade secret of Texas
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10 | Instruments Berlin, AG
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11 | The receipt of or possession of this file does not convey
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12 | any rights to reproduce or disclose its contents or to
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13 | manufacture, use, or sell anything it may describe, in
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14 | whole, or in part, without the specific written consent of
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15 | Texas Instruments Berlin, AG.
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16 +-----------------------------------------------------------------------------
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17 | Purpose : Definition of encoding and decoding functions for ASN1_CHOICE
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18 | elements
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19 +-----------------------------------------------------------------------------
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20 */
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21
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22 /*
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23 * Standard definitions like UCHAR, ERROR etc.
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24 */
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25 #include "typedefs.h"
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26 #include "header.h"
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27
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28 /*
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29 * Prototypes of ccd (USE_DRIVER EQ undef) for prototypes only
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30 * look at ccdapi.h
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31 */
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32 #undef USE_DRIVER
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33 #include "ccdapi.h"
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34
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35 /*
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36 * Types and functions for bit access and manipulation
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37 */
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38 #include "ccd_globs.h"
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39 #include "bitfun.h"
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40
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41 /*
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42 * Prototypes and constants in the common part of ccd
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43 */
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44 #include "ccd.h"
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45 #include "ccd_codingtypes.h"
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46
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47 /*
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48 * Declaration of coder/decoder tables
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49 */
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50 #include "ccdtable.h"
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51 #include "ccddata.h"
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52
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53 EXTERN T_FUNC_POINTER codec[MAX_CODEC_ID+1][2];
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54
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55 #ifndef RUN_INT_RAM
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56 const UBYTE bitSize[] = {0, 1, 1, 2, 2, 3, 3, 3, 3,
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57 4, 4, 4, 4, 4, 4, 4, 4,
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58 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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59 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
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60 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6};
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61 #endif /* !RUN_INT_RAM */
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62
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63 #ifndef RUN_INT_RAM
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64 /*
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65 +--------------------------------------------------------------------+
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66 | PROJECT : CCD (6144) MODULE : asn1_choice |
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67 | STATE : code ROUTINE : PER_Decode_ASN1_CHOICE_altervative |
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68 +--------------------------------------------------------------------+
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69
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70 PURPOSE : Decode a chosen alternative of an ASN.1 CHOICE type
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71 Use the parameter union tag bit-size to read the CHOICE
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72 index. Because of the ascending enumeration of union tags
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73 it is easy to calculate the e_ref for the chosen element
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74 which is to be decoded. Then the appropriate decoding
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75 function for the chosen element is called.
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76
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77 No actions for pointer types (dynamic arrays), as CHOICE
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78 clauses contain no information in themselves. Memory is
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79 allocated in the containing SEQUENCE instead.
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80 */
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81 void PER_Decode_ASN1_CHOICE_alterative (const ULONG e_ref, T_ENUM UnionTag, T_CCD_Globs *globs)
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82 {
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83 UBYTE *old_pstruct;
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84 ULONG elem_ref, c_ref;
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85
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86 c_ref = (ULONG) melem[e_ref].elemRef;
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87
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88 /*
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89 * Calculate the elem_ref for the chosen element.
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90 * Write the CHOICE tag value in the C-structure.
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91 */
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92 elem_ref = mcomp[c_ref].componentRef + (ULONG) UnionTag;
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93 *(T_ENUM *) (globs->pstruct+globs->pstructOffs) = (T_ENUM) UnionTag;
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94
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95 /*
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96 * Prepare for decoding next element.
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97 * Store the current value of the C-structure pointer. After decoding the CHOICE component
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98 * we will set the pointer to this stored value. Then we will use pstructOffs for pointing
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99 * to the next element.
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100 */
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101 old_pstruct = globs->pstruct;
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102 globs->pstruct += (globs->pstructOffs + sizeof(T_ENUM));
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103
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104 #ifdef DYNAMIC_ARRAYS
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105 /*
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106 * Allocate memory for this whole composition, if elemType is
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107 * one of the pointer types.
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108 */
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109 if ( is_pointer_type(e_ref) AND
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110 PER_allocmem_and_update(e_ref, 1, globs) NEQ ccdOK ) {
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111 return;
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112 } else
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113 #endif
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114
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115 /*
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116 * Call the decode function for the chosen element.
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parents:
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117 */
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parents:
diff changeset
118 (void) codec[melem[elem_ref].codingType][DECODE_FUN]
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parents:
diff changeset
119 (c_ref, elem_ref, globs);
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parents:
diff changeset
120 /*
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parents:
diff changeset
121 * Prepare for decoding the next element.
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parents:
diff changeset
122 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 globs->pstruct = old_pstruct;
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parents:
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124 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 #endif /* !RUN_INT_RAM */
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parents:
diff changeset
126
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parents:
diff changeset
127 #ifndef RUN_INT_RAM
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parents:
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128 /*
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parents:
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129 +--------------------------------------------------------------------+
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parents:
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130 | PROJECT : CCD (6144) MODULE : asn1_choice |
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parents:
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131 | STATE : code ROUTINE : cdc_asn1_choice_decode |
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parents:
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132 +--------------------------------------------------------------------+
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parents:
diff changeset
133
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parents:
diff changeset
134 PURPOSE : Decode ASN.1 CHOICE type according to PER
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parents:
diff changeset
135 CHOICE index is read from the message bit string. Its
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parents:
diff changeset
136 bit-size can be extracted from the number of CHOICE
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 alternatives.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 For decoding the CHOICE alternative itself, call the same
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 function as for extensible CHOICE types.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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140 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 SHORT cdc_asn1_choice_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
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parents:
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142 {
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parents:
diff changeset
143 T_ENUM UnionTag=0; /* default: only one alternative */
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parents:
diff changeset
144 ULONG num_of_comps, mcomp_ref;
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parents:
diff changeset
145
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parents:
diff changeset
146 mcomp_ref = (ULONG) melem[e_ref].elemRef;
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parents:
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147
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parents:
diff changeset
148 #ifdef DEBUG_CCD
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parents:
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149 #ifndef CCD_SYMBOLS
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parents:
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150 TRACE_CCD (globs, "cdc_asn1_choice_decode()");
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parents:
diff changeset
151 #else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 TRACE_CCD (globs, "cdc_asn1_choice_decode() %s", mcomp[mcomp_ref].name);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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153 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 /* Don't do anything for empty choices */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 if (mcomp[mcomp_ref].numOfComponents == 0)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161
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parents:
diff changeset
162 globs->pstructOffs = melem[e_ref].structOffs;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 /* For optional elements we have already set the valid flag in the
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 * C-structure. We have done it while processing ASN1_SEQ.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 if ( ! cdc_isPresent(e_ref, globs) ) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 * Get the bit size of the CHOICE index.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 * Then read the bits representing the index in the air message.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 num_of_comps = (ULONG) mcomp[mcomp_ref].numOfComponents;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 /* CHOICE index is encoded only if there are more than one alternatives. */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 if (num_of_comps NEQ 1)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 UnionTag = bf_getBits ((U32)bitSize[num_of_comps], globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 * Check correctness of the read CHOICE index.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 if ((ULONG)UnionTag >= num_of_comps)
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parents:
diff changeset
184 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 ccd_recordFault (globs, ERR_ASN1_ENCODING, BREAK, (USHORT) e_ref, globs->pstruct+globs->pstructOffs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 PER_Decode_ASN1_CHOICE_alterative (e_ref, UnionTag, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 #endif /* !RUN_INT_RAM */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 #ifndef RUN_INT_RAM
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parents:
diff changeset
194 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 +--------------------------------------------------------------------+
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parents:
diff changeset
196 | PROJECT : CCD (6144) MODULE : asn1_choice |
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parents:
diff changeset
197 | STATE : code ROUTINE : PER_Encode_ASN1_CHOICE_altervative |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 +--------------------------------------------------------------------+
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 PURPOSE : Encode a chosen alternative of an ASN.1 CHOICE type.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 Because of ascending enumeration of union tags it is
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 easy to calculate the e_ref for the chosen element to be
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 encoded. Then the appropriate encoding function for the
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 chosen element is called.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 No actions for pointer types (dynamic arrays), as CHOICE
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 clauses contain no information in themselves. Memory is
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 allocated in the containing SEQUENCE instead.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 void PER_Encode_ASN1_CHOICE_alterative (const ULONG e_ref, T_ENUM UnionTag, T_CCD_Globs *globs)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 UBYTE *old_pstruct;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 ULONG elem_ref, c_ref;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 c_ref = (ULONG) melem[e_ref].elemRef;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 * Prepare for encoding next element.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 * Store the current value of the C-structure pointer. After encoding
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 * the CHOICE component we will set the pointer to this stored value.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 * Then we will use pstructOffs for pointing to the next element.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 old_pstruct = globs->pstruct;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 globs->pstruct += (globs->pstructOffs + sizeof(T_ENUM));
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 #ifdef DYNAMIC_ARRAYS
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 * Dereference pointer if this is a pointer types (dynamic arrays)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 * globs->pstruct was saved above, so no need to do it again.
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 if ( is_pointer_type(e_ref) ) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 if (ccd_check_pointer(*(U8 **)(globs->pstruct)) == ccdOK)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 globs->pstruct = *(U8 **)(globs->pstruct);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 else {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 ccd_recordFault (globs, ERR_INVALID_PTR, BREAK, (USHORT) e_ref,
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237 &globs->pstruct[globs->pstructOffs]);
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238 return;
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239 }
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240 }
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241 #endif
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242
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243 elem_ref = mcomp[c_ref].componentRef + (USHORT) UnionTag;
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244
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245 /*
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246 * Call the decode function for the chosen element.
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247 */
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248 (void) codec[melem[elem_ref].codingType][ENCODE_FUN]
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249 (c_ref, elem_ref, globs);
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250 /*
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251 * Prepare for encoding the next element.
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252 */
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253 globs->pstruct = old_pstruct;
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254 }
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255 #endif /* !RUN_INT_RAM */
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256
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257 #ifndef RUN_INT_RAM
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258 /*
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259 +--------------------------------------------------------------------+
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260 | PROJECT : CCD (6144) MODULE : asn1_choice |
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261 | STATE : code ROUTINE : cdc_asn1_choice_encode |
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262 +--------------------------------------------------------------------+
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263
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264 PURPOSE : Encoding of CHOICE type for UMTS
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265 The size of the union tag must be calculated. Then its value
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266 is written in the air message.
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267 For encoding the CHOICE alternative itself, call the same
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268 function as for extensible CHOICE types.
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269 */
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270 SHORT cdc_asn1_choice_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
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271 {
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272 T_ENUM UnionTag=0; /* default: only one alternative */
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273 ULONG num_of_comps, mcomp_ref;
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274
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275 mcomp_ref = (ULONG) melem[e_ref].elemRef;
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276
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277 #ifdef DEBUG_CCD
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278 #ifndef CCD_SYMBOLS
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279 TRACE_CCD (globs, "cdc_asn1_choice_encode()");
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280 #else
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281 TRACE_CCD (globs, "cdc_asn1_choice_encode() %s", mcomp[mcomp_ref].name);
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282 #endif
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parents:
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283 #endif
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284
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285 /* Don't do anything for empty choices */
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286 if (mcomp[mcomp_ref].numOfComponents == 0)
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parents:
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287 {
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parents:
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288 return 1;
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parents:
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289 }
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parents:
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290
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291 globs->pstructOffs = melem[e_ref].structOffs;
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292
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293 /* For optional elements we have already set the valid flag in the
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294 * C-structure. We have done it while processing ASN1_SEQ.
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parents:
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295 */
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296 if ( ! cdc_isPresent(e_ref, globs) )
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297 return 1;
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parents:
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298
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299 /*
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300 * Get the value of CHOICE index (= union controller) from the C-structure.
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parents:
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301 * Check its correctness. Write it in the air message.
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302 * Afterwards encode the chosen CHOICE altervative.
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parents:
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303 */
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304 num_of_comps = mcomp[mcomp_ref].numOfComponents;
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parents:
diff changeset
305 /* CHOICE index is encoded only if there are more than one alternatives. */
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parents:
diff changeset
306 if (num_of_comps NEQ 1)
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parents:
diff changeset
307 {
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parents:
diff changeset
308 UnionTag = *(T_ENUM *) (globs->pstruct+globs->pstructOffs);
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parents:
diff changeset
309 if (UnionTag >= (T_ENUM)num_of_comps)
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parents:
diff changeset
310 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311 ccd_recordFault (globs, ERR_ASN1_ENCODING, BREAK, (USHORT) e_ref,
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parents:
diff changeset
312 globs->pstruct+globs->pstructOffs);
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parents:
diff changeset
313 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314 bf_writeVal ((ULONG) UnionTag, (ULONG) bitSize[num_of_comps], globs);
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parents:
diff changeset
315 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316 PER_Encode_ASN1_CHOICE_alterative (e_ref, UnionTag, globs);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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318 return 1;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
319 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
320 #endif /* !RUN_INT_RAM */