annotate nss/lib/libpkix/pkix/checker/pkix_nameconstraintschecker.c @ 0:1e5118fa0cb1

This is NSS with a Cmake Buildsyste To compile a static NSS library for Windows we've used the Chromium-NSS fork and added a Cmake buildsystem to compile it statically for Windows. See README.chromium for chromium changes and README.trustbridge for our modifications.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 28 Jul 2014 10:47:06 +0200
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rev   line source
0
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1 /* This Source Code Form is subject to the terms of the Mozilla Public
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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4 /*
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5 * pkix_nameconstraintschecker.c
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6 *
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7 * Functions for Name Constraints Checkers
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8 *
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9 */
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10
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11 #include "pkix_nameconstraintschecker.h"
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12
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13 /* --Private-NameConstraintsCheckerState-Functions---------------------- */
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14
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15 /*
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16 * FUNCTION: pkix_NameConstraintsCheckerstate_Destroy
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17 * (see comments for PKIX_PL_DestructorCallback in pkix_pl_system.h)
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18 */
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19 static PKIX_Error *
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20 pkix_NameConstraintsCheckerState_Destroy(
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21 PKIX_PL_Object *object,
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22 void *plContext)
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23 {
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24 pkix_NameConstraintsCheckerState *state = NULL;
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25
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26 PKIX_ENTER(CERTNAMECONSTRAINTSCHECKERSTATE,
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27 "pkix_NameConstraintsCheckerState_Destroy");
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28 PKIX_NULLCHECK_ONE(object);
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29
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30 /* Check that object type */
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31 PKIX_CHECK(pkix_CheckType
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32 (object, PKIX_CERTNAMECONSTRAINTSCHECKERSTATE_TYPE, plContext),
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33 PKIX_OBJECTNOTNAMECONSTRAINTSCHECKERSTATE);
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34
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35 state = (pkix_NameConstraintsCheckerState *)object;
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36
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37 PKIX_DECREF(state->nameConstraints);
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38 PKIX_DECREF(state->nameConstraintsOID);
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39
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40 cleanup:
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41
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42 PKIX_RETURN(CERTNAMECONSTRAINTSCHECKERSTATE);
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43 }
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44
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45 /*
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46 * FUNCTION: pkix_NameConstraintsCheckerState_RegisterSelf
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47 *
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48 * DESCRIPTION:
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49 * Registers PKIX_CERTNAMECONSTRAINTSCHECKERSTATE_TYPE and its related
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50 * functions with systemClasses[]
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51 *
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52 * THREAD SAFETY:
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53 * Not Thread Safe - for performance and complexity reasons
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54 *
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55 * Since this function is only called by PKIX_PL_Initialize, which should
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56 * only be called once, it is acceptable that this function is not
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57 * thread-safe.
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58 */
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59 PKIX_Error *
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60 pkix_NameConstraintsCheckerState_RegisterSelf(void *plContext)
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61 {
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62 extern pkix_ClassTable_Entry systemClasses[PKIX_NUMTYPES];
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63 pkix_ClassTable_Entry entry;
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64
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65 PKIX_ENTER(CERTNAMECONSTRAINTSCHECKERSTATE,
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66 "pkix_NameConstraintsCheckerState_RegisterSelf");
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67
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68 entry.description = "NameConstraintsCheckerState";
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69 entry.objCounter = 0;
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70 entry.typeObjectSize = sizeof(pkix_NameConstraintsCheckerState);
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71 entry.destructor = pkix_NameConstraintsCheckerState_Destroy;
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72 entry.equalsFunction = NULL;
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73 entry.hashcodeFunction = NULL;
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74 entry.toStringFunction = NULL;
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75 entry.comparator = NULL;
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76 entry.duplicateFunction = NULL;
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77
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78 systemClasses[PKIX_CERTNAMECONSTRAINTSCHECKERSTATE_TYPE] = entry;
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79
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80 PKIX_RETURN(CERTNAMECONSTRAINTSCHECKERSTATE);
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81 }
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82
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83 /*
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84 * FUNCTION: pkix_NameConstraintsCheckerState_Create
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85 *
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86 * DESCRIPTION:
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87 * Allocate and initialize NameConstraintsChecker state data.
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88 *
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89 * PARAMETERS
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90 * "nameConstraints"
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91 * Address of NameConstraints to be stored in state. May be NULL.
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92 * "numCerts"
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93 * Number of certificates in the validation chain. This data is used
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94 * to identify end-entity.
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95 * "pCheckerState"
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96 * Address of NameConstraintsCheckerState that is returned. Must be
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97 * non-NULL.
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98 * "plContext" - Platform-specific context pointer.
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99 *
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100 * THREAD SAFETY:
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101 * Thread Safe (see Thread Safety Definitions in Programmer's Guide)
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102 *
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103 * RETURNS:
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104 * Returns NULL if the function succeeds.
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105 * Returns a CERTNAMECONSTRAINTSCHECKERSTATE Error if the function fails in
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106 * a non-fatal way.
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107 * Returns a Fatal Error
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108 */
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109 static PKIX_Error *
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110 pkix_NameConstraintsCheckerState_Create(
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111 PKIX_PL_CertNameConstraints *nameConstraints,
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112 PKIX_UInt32 numCerts,
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113 pkix_NameConstraintsCheckerState **pCheckerState,
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114 void *plContext)
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115 {
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116 pkix_NameConstraintsCheckerState *state = NULL;
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117
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118 PKIX_ENTER(CERTNAMECONSTRAINTSCHECKERSTATE,
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119 "pkix_NameConstraintsCheckerState_Create");
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120 PKIX_NULLCHECK_ONE(pCheckerState);
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121
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122 PKIX_CHECK(PKIX_PL_Object_Alloc
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123 (PKIX_CERTNAMECONSTRAINTSCHECKERSTATE_TYPE,
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124 sizeof (pkix_NameConstraintsCheckerState),
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125 (PKIX_PL_Object **)&state,
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126 plContext),
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127 PKIX_COULDNOTCREATENAMECONSTRAINTSCHECKERSTATEOBJECT);
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128
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129 /* Initialize fields */
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130
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131 PKIX_CHECK(PKIX_PL_OID_Create
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diff changeset
132 (PKIX_NAMECONSTRAINTS_OID,
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
133 &state->nameConstraintsOID,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
134 plContext),
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
135 PKIX_OIDCREATEFAILED);
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
136
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
137 PKIX_INCREF(nameConstraints);
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
138
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
139 state->nameConstraints = nameConstraints;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
140 state->certsRemaining = numCerts;
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
141
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
142 *pCheckerState = state;
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
143 state = NULL;
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parents:
diff changeset
144
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
145 cleanup:
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
146
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
147 PKIX_DECREF(state);
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diff changeset
148
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
149 PKIX_RETURN(CERTNAMECONSTRAINTSCHECKERSTATE);
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150 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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151
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diff changeset
152 /* --Private-NameConstraintsChecker-Functions------------------------- */
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153
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154 /*
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155 * FUNCTION: pkix_NameConstraintsChecker_Check
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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156 * (see comments for PKIX_CertChainChecker_CheckCallback in pkix_checker.h)
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157 */
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158 static PKIX_Error *
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159 pkix_NameConstraintsChecker_Check(
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diff changeset
160 PKIX_CertChainChecker *checker,
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
161 PKIX_PL_Cert *cert,
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diff changeset
162 PKIX_List *unresolvedCriticalExtensions,
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
163 void **pNBIOContext,
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
164 void *plContext)
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165 {
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166 pkix_NameConstraintsCheckerState *state = NULL;
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167 PKIX_PL_CertNameConstraints *nameConstraints = NULL;
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168 PKIX_PL_CertNameConstraints *mergedNameConstraints = NULL;
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169 PKIX_Boolean selfIssued = PKIX_FALSE;
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170 PKIX_Boolean lastCert = PKIX_FALSE;
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171
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172 PKIX_ENTER(CERTCHAINCHECKER, "pkix_NameConstraintsChecker_Check");
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173 PKIX_NULLCHECK_THREE(checker, cert, pNBIOContext);
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174
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175 *pNBIOContext = NULL; /* we never block on pending I/O */
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diff changeset
176
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177 PKIX_CHECK(PKIX_CertChainChecker_GetCertChainCheckerState
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178 (checker, (PKIX_PL_Object **)&state, plContext),
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179 PKIX_CERTCHAINCHECKERGETCERTCHAINCHECKERSTATEFAILED);
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diff changeset
180
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181 state->certsRemaining--;
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diff changeset
182 lastCert = state->certsRemaining == 0;
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diff changeset
183
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diff changeset
184 /* Get status of self issued */
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diff changeset
185 PKIX_CHECK(pkix_IsCertSelfIssued(cert, &selfIssued, plContext),
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
186 PKIX_ISCERTSELFISSUEDFAILED);
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diff changeset
187
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diff changeset
188 /* Check on non self-issued and if so only for last cert */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
189 if (selfIssued == PKIX_FALSE ||
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
190 (selfIssued == PKIX_TRUE && lastCert)) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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diff changeset
191 PKIX_CHECK(PKIX_PL_Cert_CheckNameConstraints
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
192 (cert, state->nameConstraints, lastCert,
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
193 plContext),
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diff changeset
194 PKIX_CERTCHECKNAMECONSTRAINTSFAILED);
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195 }
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diff changeset
196
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diff changeset
197 if (!lastCert) {
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diff changeset
198
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diff changeset
199 PKIX_CHECK(PKIX_PL_Cert_GetNameConstraints
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
200 (cert, &nameConstraints, plContext),
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
201 PKIX_CERTGETNAMECONSTRAINTSFAILED);
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
202
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
203 /* Merge with previous name constraints kept in state */
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parents:
diff changeset
204
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
205 if (nameConstraints != NULL) {
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parents:
diff changeset
206
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
207 if (state->nameConstraints == NULL) {
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diff changeset
208
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
209 state->nameConstraints = nameConstraints;
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parents:
diff changeset
210
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diff changeset
211 } else {
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diff changeset
212
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
213 PKIX_CHECK(PKIX_PL_Cert_MergeNameConstraints
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
214 (nameConstraints,
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
215 state->nameConstraints,
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
216 &mergedNameConstraints,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
217 plContext),
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
218 PKIX_CERTMERGENAMECONSTRAINTSFAILED);
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
219
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parents:
diff changeset
220 PKIX_DECREF(nameConstraints);
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
221 PKIX_DECREF(state->nameConstraints);
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
222
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
223 state->nameConstraints = mergedNameConstraints;
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
224 }
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
225
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
226 /* Remove Name Constraints Extension OID from list */
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
227 if (unresolvedCriticalExtensions != NULL) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
228 PKIX_CHECK(pkix_List_Remove
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
229 (unresolvedCriticalExtensions,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
230 (PKIX_PL_Object *)state->nameConstraintsOID,
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
231 plContext),
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
232 PKIX_LISTREMOVEFAILED);
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
233 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
234 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
235 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
236
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
237 PKIX_CHECK(PKIX_CertChainChecker_SetCertChainCheckerState
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
238 (checker, (PKIX_PL_Object *)state, plContext),
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
239 PKIX_CERTCHAINCHECKERSETCERTCHAINCHECKERSTATEFAILED);
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
240
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
241 cleanup:
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
242
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
243 PKIX_DECREF(state);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
244
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
245 PKIX_RETURN(CERTCHAINCHECKER);
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
246 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
247
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
248 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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parents:
diff changeset
249 * FUNCTION: pkix_NameConstraintsChecker_Initialize
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
250 *
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
251 * DESCRIPTION:
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parents:
diff changeset
252 * Create a CertChainChecker with a NameConstraintsCheckerState. The
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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parents:
diff changeset
253 * NameConstraintsCheckerState is created with "trustedNC" and "numCerts"
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parents:
diff changeset
254 * as its initial state. The CertChainChecker for the NameConstraints is
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
255 * returned at address of "pChecker".
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
256 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
257 * PARAMETERS
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parents:
diff changeset
258 * "trustedNC"
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parents:
diff changeset
259 * The NameConstraints from trusted anchor Cert is stored at "trustedNC"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
260 * for initialization. May be NULL.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
261 * "numCerts"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
262 * Number of certificates in the validation chain. This data is used
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
263 * to identify end-entity.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
264 * "pChecker"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
265 * Address of CertChainChecker to bo created and returned.
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266 * Must be non-NULL.
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267 * "plContext" - Platform-specific context pointer.
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268 *
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269 * THREAD SAFETY:
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270 * Thread Safe (see Thread Safety Definitions in Programmer's Guide)
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271 *
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272 * RETURNS:
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273 * Returns NULL if the function succeeds.
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274 * Returns a CERTCHAINCHECKER Error if the function fails in a non-fatal way.
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275 * Returns a Fatal Error
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276 */
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277 PKIX_Error *
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278 pkix_NameConstraintsChecker_Initialize(
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279 PKIX_PL_CertNameConstraints *trustedNC,
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280 PKIX_UInt32 numCerts,
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281 PKIX_CertChainChecker **pChecker,
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282 void *plContext)
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283 {
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284 pkix_NameConstraintsCheckerState *state = NULL;
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285
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286 PKIX_ENTER(CERTCHAINCHECKER, "pkix_NameConstraintsChecker_Initialize");
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287 PKIX_NULLCHECK_ONE(pChecker);
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288
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289 PKIX_CHECK(pkix_NameConstraintsCheckerState_Create
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290 (trustedNC, numCerts, &state, plContext),
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291 PKIX_NAMECONSTRAINTSCHECKERSTATECREATEFAILED);
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292
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293 PKIX_CHECK(PKIX_CertChainChecker_Create
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294 (pkix_NameConstraintsChecker_Check,
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295 PKIX_FALSE,
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296 PKIX_FALSE,
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297 NULL,
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298 (PKIX_PL_Object *) state,
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299 pChecker,
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300 plContext),
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301 PKIX_CERTCHAINCHECKERCREATEFAILED);
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302
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303 cleanup:
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304
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305 PKIX_DECREF(state);
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306
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307 PKIX_RETURN(CERTCHAINCHECKER);
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308 }
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