Add m-esr52 at 52.6.0

1 files changed, 1793 insertions, 0 deletions

diff --git a/security/nss/lib/libpkix/include/pkix_params.h b/security/nss/lib/libpkix/include/pkix_params.h
new file mode 100755
index 000000000..a4d8e485c
--- /dev/null
+++ b/security/nss/lib/libpkix/include/pkix_params.h
@@ -0,0 +1,1793 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/*
+ * This file defines functions associated with the various parameters used
+ * by the top-level functions.
+ *
+ */
+
+#ifndef _PKIX_PARAMS_H
+#define _PKIX_PARAMS_H
+
+#include "pkixt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* General
+ *
+ * Please refer to the libpkix Programmer's Guide for detailed information
+ * about how to use the libpkix library. Certain key warnings and notices from
+ * that document are repeated here for emphasis.
+ *
+ * All identifiers in this file (and all public identifiers defined in
+ * libpkix) begin with "PKIX_". Private identifiers only intended for use
+ * within the library begin with "pkix_".
+ *
+ * A function returns NULL upon success, and a PKIX_Error pointer upon failure.
+ *
+ * Unless otherwise noted, for all accessor (gettor) functions that return a
+ * PKIX_PL_Object pointer, callers should assume that this pointer refers to a
+ * shared object. Therefore, the caller should treat this shared object as
+ * read-only and should not modify this shared object. When done using the
+ * shared object, the caller should release the reference to the object by
+ * using the PKIX_PL_Object_DecRef function.
+ *
+ * While a function is executing, if its arguments (or anything referred to by
+ * its arguments) are modified, free'd, or destroyed, the function's behavior
+ * is undefined.
+ *
+ */
+
+/* PKIX_ProcessingParams
+ *
+ * PKIX_ProcessingParams are parameters used when validating or building a
+ * chain of certificates. Using the parameters, the caller can specify several
+ * things, including the various inputs to the PKIX chain validation
+ * algorithm (such as trust anchors, initial policies, etc), any customized
+ * functionality (such as CertChainCheckers, RevocationCheckers, CertStores),
+ * and whether revocation checking should be disabled.
+ *
+ * Once the caller has created the ProcessingParams object, the caller then
+ * passes it to PKIX_ValidateChain or PKIX_BuildChain, which uses it to call
+ * the user's callback functions as needed during the validation or building
+ * process.
+ *
+ * If a parameter is not set (or is set to NULL), it will be set to the
+ * default value for that parameter. The default value for the Date parameter
+ * is NULL, which indicates the current time when the path is validated. The
+ * default for the remaining parameters is the least constrained.
+ */
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_Create
+ * DESCRIPTION:
+ *
+ *  Creates a new ProcessingParams object. Trust anchor list is set to
+ *  newly created empty list of trust. In this case trust anchors will
+ *  be taken from provided cert store. Pointed to the created
+ *  ProcessingParams object is stored in "pParams".
+ *
+ * PARAMETERS:
+ *  "anchors"
+ *      Address of List of (non-empty) TrustAnchors to be used.
+ *      Must be non-NULL.
+ *  "pParams"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_Create(
+        PKIX_ProcessingParams **pParams,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetCertChainCheckers
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the List of CertChainCheckers (if any) that are set
+ *  in the ProcessingParams pointed to by "params" and stores it at
+ *  "pCheckers". Each CertChainChecker represents a custom certificate
+ *  validation check used by PKIX_ValidateChain or PKIX_BuildChain as needed
+ *  during the validation or building process. If "params" does not have any
+ *  CertChainCheckers, this function stores an empty List at "pCheckers".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of CertChainCheckers (if any)
+ *      are to be stored. Must be non-NULL.
+ *  "pCheckers"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetCertChainCheckers(
+        PKIX_ProcessingParams *params,
+        PKIX_List **pCheckers, /* list of PKIX_CertChainChecker */
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetCertChainCheckers
+ * DESCRIPTION:
+ *
+ *  Sets the ProcessingParams pointed to by "params" with a List of
+ *  CertChainCheckers pointed to by "checkers". Each CertChainChecker
+ *  represents a custom certificate validation check used by
+ *  PKIX_ValidateChain or PKIX_BuildChain as needed during the validation or
+ *  building process. If "checkers" is NULL, no CertChainCheckers will be used.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of CertChainCheckers is to be
+ *      set. Must be non-NULL.
+ *  "checkers"
+ *      Address of List of CertChainCheckers to be set. If NULL, no
+ *      CertChainCheckers will be used.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params" and "checkers"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetCertChainCheckers(
+        PKIX_ProcessingParams *params,
+        PKIX_List *checkers,  /* list of PKIX_CertChainChecker */
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_AddCertChainChecker
+ * DESCRIPTION:
+ *
+ *  Adds the CertChainChecker pointed to by "checker" to the ProcessingParams
+ *  pointed to by "params". The CertChainChecker represents a custom
+ *  certificate validation check used by PKIX_ValidateChain or PKIX_BuildChain
+ *  as needed during the validation or building process.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams to be added to. Must be non-NULL.
+ *  "checker"
+ *      Address of CertChainChecker to be added. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_AddCertChainChecker(
+        PKIX_ProcessingParams *params,
+        PKIX_CertChainChecker *checker,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetRevocationChecker
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the RevocationChecker that are set
+ *  in the ProcessingParams pointed to by "params" and stores it at
+ *  "pRevChecker". Each RevocationChecker represents a revocation
+ *  check used by PKIX_ValidateChain or PKIX_BuildChain as needed during the
+ *  validation or building process. If "params" does not have any
+ *  RevocationCheckers, this function stores an empty List at "pRevChecker".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of RevocationCheckers
+ *      is to be stored. Must be non-NULL.
+ *  "pRevChecker"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetRevocationChecker(
+        PKIX_ProcessingParams *params,
+        PKIX_RevocationChecker **pChecker,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetRevocationChecker
+ * DESCRIPTION:
+ *
+ *  Sets the ProcessingParams pointed to by "params" with a 
+ *  RevocationChecker pointed to by "revChecker". Revocation
+ *  checker object should be created and assigned to processing
+ *  parameters before chain build or validation can begin.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of RevocationCheckers is to be
+ *      set. Must be non-NULL.
+ *  "revChecker"
+ *      Address of RevocationChecker to be set. Must be set before chain
+ *      building or validation.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetRevocationChecker(
+        PKIX_ProcessingParams *params,
+        PKIX_RevocationChecker *revChecker,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetCertStores
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the List of CertStores (if any) that are set in the
+ *  ProcessingParams pointed to by "params" and stores it at "pStores". Each
+ *  CertStore represents a particular repository from which certificates and
+ *  CRLs can be retrieved by PKIX_ValidateChain or PKIX_BuildChain as needed
+ *  during the validation or building process. If "params" does not have any
+ *  CertStores, this function stores an empty List at "pStores".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of CertStores (if any) are to
+ *      be stored. Must be non-NULL.
+ *  "pStores"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetCertStores(
+        PKIX_ProcessingParams *params,
+        PKIX_List **pStores,  /* list of PKIX_CertStore */
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetCertStores
+ * DESCRIPTION:
+ *
+ *  Sets the ProcessingParams pointed to by "params" with a List of CertStores
+ *  pointed to by "stores". Each CertStore represents a particular repository
+ *  from which certificates and CRLs can be retrieved by PKIX_ValidateChain or
+ *  PKIX_BuildChain as needed during the validation or building process. If
+ *  "stores" is NULL, no CertStores will be used.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of CertStores is to be set.
+ *      Must be non-NULL.
+ *  "stores"
+ *      Address of List of CertStores to be set. If NULL, no CertStores will
+ *      be used.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetCertStores(
+        PKIX_ProcessingParams *params,
+        PKIX_List *stores,  /* list of PKIX_CertStore */
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_AddCertStore
+ * DESCRIPTION:
+ *
+ *  Adds the CertStore pointed to by "store" to the ProcessingParams pointed
+ *  to by "params". The CertStore represents a particular repository from
+ *  which certificates and CRLs can be retrieved by PKIX_ValidateChain or
+ *  PKIX_BuildChain as needed during the validation or building process.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams to be added to. Must be non-NULL.
+ *  "store"
+ *      Address of CertStore to be added.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_AddCertStore(
+        PKIX_ProcessingParams *params,
+        PKIX_CertStore *store,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetDate
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the Date (if any) that is set in the
+ *  ProcessingParams pointed to by "params" and stores it at "pDate". The
+ *  Date represents the time for which the validation of the certificate chain
+ *  should be determined. If "params" does not have any Date set, this function
+ *  stores NULL at "pDate".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose Date (if any) is to be stored.
+ *      Must be non-NULL.
+ *  "pDate"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetDate(
+        PKIX_ProcessingParams *params,
+        PKIX_PL_Date **pDate,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetDate
+ * DESCRIPTION:
+ *
+ *  Sets the ProcessingParams pointed to by "params" with a Date pointed to by
+ *  "date". The Date represents the time for which the validation of the
+ *  certificate chain should be determined. If "date" is NULL, the current
+ *  time is used during validation.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose Date is to be set. Must be non-NULL.
+ *  "date"
+ *      Address of Date to be set. If NULL, current time is used.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetDate(
+        PKIX_ProcessingParams *params,
+        PKIX_PL_Date *date,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetInitialPolicies
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the List of OIDs (if any) that are set in the
+ *  ProcessingParams pointed to by "params" and stores it at "pInitPolicies".
+ *  Each OID represents an initial policy identifier, indicating that any
+ *  one of these policies would be acceptable to the certificate user for
+ *  the purposes of certification path processing. If "params" does not have
+ *  any initial policies, this function stores an empty List at
+ *  "pInitPolicies".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of OIDs (if any) are to be
+ *      stored. Must be non-NULL.
+ *  "pInitPolicies"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetInitialPolicies(
+        PKIX_ProcessingParams *params,
+        PKIX_List **pInitPolicies,    /* list of PKIX_PL_OID */
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetInitialPolicies
+ * DESCRIPTION:
+ *
+ *  Sets the ProcessingParams pointed to by "params" with a List of OIDs
+ *  pointed to by "initPolicies".
+ *
+ *  Each OID represents an initial policy identifier, indicating that any
+ *  one of these policies would be acceptable to the certificate user for
+ *  the purposes of certification path processing. By default, any policy
+ *  is acceptable (i.e. all policies), so a user that wants to allow any
+ *  policy as acceptable does not need to call this method. Similarly, if
+ *  initPolicies is NULL or points to an empty List, all policies are
+ *  acceptable.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of OIDs is to be set.
+ *      Must be non-NULL.
+ *  "initPolicies"
+ *      Address of List of OIDs to be set. If NULL or if pointing to an empty
+ *      List, all policies are acceptable.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetInitialPolicies(
+        PKIX_ProcessingParams *params,
+        PKIX_List *initPolicies,    /* list of PKIX_PL_OID */
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetPolicyQualifiersRejected
+ * DESCRIPTION:
+ *
+ *  Checks whether the ProcessingParams pointed to by "params" indicate that
+ *  policy qualifiers should be rejected and stores the Boolean result at
+ *  "pRejected".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams used to determine whether or not policy
+ *      qualifiers should be rejected. Must be non-NULL.
+ *  "pRejected"
+ *      Address where Boolean will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetPolicyQualifiersRejected(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean *pRejected,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetPolicyQualifiersRejected
+ * DESCRIPTION:
+ *
+ *  Specifies in the ProcessingParams pointed to by "params" whether policy
+ *  qualifiers are rejected using the Boolean value of "rejected".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams to be set. Must be non-NULL.
+ *  "rejected"
+ *      Boolean value indicating whether policy qualifiers are to be rejected.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetPolicyQualifiersRejected(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean rejected,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetTargetCertConstraints
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the CertSelector (if any) that is set in the
+ *  ProcessingParams pointed to by "params" and stores it at "pConstraints".
+ *  The CertSelector represents the constraints to be placed on the target
+ *  certificate. If "params" does not have any CertSelector set, this function
+ *  stores NULL at "pConstraints".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose CertSelector (if any) is to be
+ *      stored. Must be non-NULL.
+ *  "pConstraints"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetTargetCertConstraints(
+        PKIX_ProcessingParams *params,
+        PKIX_CertSelector **pConstraints,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetTargetCertConstraints
+ * DESCRIPTION:
+ *
+ *  Sets the ProcessingParams pointed to by "params" with a CertSelector
+ *  pointed to by "constraints". The CertSelector represents the constraints
+ *  to be placed on the target certificate. If "constraints" is NULL, no
+ *  constraints are defined.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose CertSelector is to be set.
+ *      Must be non-NULL.
+ *  "constraints"
+ *      Address of CertSelector to be set. If NULL, no constraints are defined.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetTargetCertConstraints(
+        PKIX_ProcessingParams *params,
+        PKIX_CertSelector *constraints,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetTrustAnchors
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the List of TrustAnchors that are set in
+ *  the ProcessingParams pointed to by "params" and stores it at "pAnchors".
+ *  If the function succeeds, the pointer to the List is guaranteed to be
+ *  non-NULL and the List is guaranteed to be non-empty.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of TrustAnchors are to
+ *      be stored. Must be non-NULL.
+ *  "pAnchors"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetTrustAnchors(
+        PKIX_ProcessingParams *params,
+        PKIX_List **pAnchors,  /* list of TrustAnchor */
+        void *plContext);
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetTrustAnchors
+ * DESCRIPTION:
+ *
+ * Sets user defined set of trust anchors. The handling of the trust anchors
+ * may be furthered alter via PKIX_ProcessingParams_SetUseOnlyTrustAnchors.
+ * By default, a certificate will be considered invalid if it does not chain
+ * to a trusted anchor from this list.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of TrustAnchors are to
+ *      be stored. Must be non-NULL.
+ *  "anchors"
+ *      Address of the trust anchors list object. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetTrustAnchors(
+        PKIX_ProcessingParams *params,
+        PKIX_List *pAnchors,  /* list of TrustAnchor */
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetUseOnlyTrustAnchors
+ * DESCRIPTION:
+ *
+ * Retrieves a pointer to the Boolean. The boolean value represents
+ * the switch value that is used to identify whether trust anchors, if
+ * specified, should be the exclusive source of trust information.
+ * If the function succeeds, the pointer to the Boolean is guaranteed to be
+ * non-NULL.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams. Must be non-NULL.
+ *  "pUseOnlyTrustAnchors"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetUseOnlyTrustAnchors(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean *pUseOnlyTrustAnchors,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetUseOnlyTrustAnchors
+ * DESCRIPTION:
+ *
+ * Configures whether trust anchors are used as the exclusive source of trust.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams. Must be non-NULL.
+ *  "useOnlyTrustAnchors"
+ *      If true, indicates that trust anchors should be used exclusively when
+ *      they have been specified via PKIX_ProcessingParams_SetTrustAnchors. A
+ *      certificate will be considered invalid if it does not chain to a
+ *      trusted anchor from that list.
+ *      If false, indicates that the trust anchors are additive to whatever
+ *      existing trust stores are configured. A certificate is considered
+ *      valid if it chains to EITHER a trusted anchor from that list OR a
+ *      certificate marked trusted in a trust store.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetUseOnlyTrustAnchors(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean useOnlyTrustAnchors,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetUseAIAForCertFetching
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the Boolean. The boolean value represents
+ *  the switch value that is used to identify if url in cert AIA extension
+ *  may be used for cert fetching.
+ *  If the function succeeds, the pointer to the Boolean is guaranteed to be
+ *  non-NULL.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams. Must be non-NULL.
+ *  "pUseAIA"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetUseAIAForCertFetching(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean *pUseAIA,  /* list of TrustAnchor */
+        void *plContext);
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetTrustAnchors
+ * DESCRIPTION:
+ *
+ * Sets switch value that defines if url in cert AIA extension
+ * may be used for cert fetching.
+ * 
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams.
+ *  "useAIA"
+ *      Address of the trust anchors list object. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetUseAIAForCertFetching(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean useAIA,  
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetQualifyTargetCert
+ * DESCRIPTION:
+ *
+ * Sets a boolean value that tells if libpkix needs to check that
+ * the target certificate satisfies the conditions set in processing
+ * parameters. Includes but not limited to date, ku and eku checks.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of TrustAnchors are to
+ *      be stored. Must be non-NULL.
+ *  "qualifyTargetCert"
+ *      boolean value if set to true will trigger qualification of the
+ *      target certificate.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetQualifyTargetCert(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean qualifyTargetCert,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetHintCerts
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to a List of Certs supplied by the user as a suggested
+ *  partial CertChain (subject to verification), that are set in the
+ *  ProcessingParams pointed to by "params", and stores it at "pHintCerts".
+ *  The List returned may be empty or NULL.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of TrustAnchors are to
+ *      be stored. Must be non-NULL.
+ *  "pHintCerts"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetHintCerts(
+        PKIX_ProcessingParams *params,
+        PKIX_List **pHintCerts,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetHintCerts
+ * DESCRIPTION:
+ *
+ *  Stores a pointer to a List of Certs supplied by the user as a suggested
+ *  partial CertChain (subject to verification), as an element in the
+ *  ProcessingParams pointed to by "params". The List may be empty or NULL.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose List of HintCerts is to be stored.
+ *      Must be non-NULL.
+ *  "hintCerts"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetHintCerts(
+        PKIX_ProcessingParams *params,
+        PKIX_List *hintCerts,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_GetResourceLimits
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the ResourceLimits (if any) that is set in the
+ *  ProcessingParams pointed to by "params" and stores it at "pResourceLimits".
+ *  The ResourceLimits represent the maximum resource usage that the caller 
+ *  desires (such as MaxTime). The ValidateChain or BuildChain call will not
+ *  exceed these maximum limits. If "params" does not have any ResourceLimits
+ *  set, this function stores NULL at "pResourceLimits".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose ResourceLimits (if any) are to be
+ *      stored. Must be non-NULL.
+ *  "pResourceLimits"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_GetResourceLimits(
+        PKIX_ProcessingParams *params,
+        PKIX_ResourceLimits **pResourceLimits,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetResourceLimits
+ * DESCRIPTION:
+ *
+ *  Sets the ProcessingParams pointed to by "params" with a ResourceLimits
+ *  object pointed to by "resourceLimits". The ResourceLimits represent the
+ *  maximum resource usage that the caller desires (such as MaxTime). The
+ *  ValidateChain or BuildChain call will not exceed these maximum limits.
+ *  If "resourceLimits" is NULL, no ResourceLimits are defined.
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams whose ResourceLimits are to be set.
+ *      Must be non-NULL.
+ *  "resourceLimits"
+ *      Address of ResourceLimits to be set. If NULL, no limits are defined.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetResourceLimits(
+        PKIX_ProcessingParams *params,
+        PKIX_ResourceLimits *resourceLimits,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_IsAnyPolicyInhibited
+ * DESCRIPTION:
+ *
+ *  Checks whether the ProcessingParams pointed to by "params" indicate that
+ *  anyPolicy is inhibited and stores the Boolean result at "pInhibited".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams used to determine whether or not anyPolicy
+ *      inhibited. Must be non-NULL.
+ *  "pInhibited"
+ *      Address where Boolean will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_IsAnyPolicyInhibited(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean *pInhibited,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetAnyPolicyInhibited
+ * DESCRIPTION:
+ *
+ *  Specifies in the ProcessingParams pointed to by "params" whether anyPolicy
+ *  is inhibited using the Boolean value of "inhibited".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams to be set. Must be non-NULL.
+ *  "inhibited"
+ *      Boolean value indicating whether anyPolicy is to be inhibited.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetAnyPolicyInhibited(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean inhibited,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_IsExplicitPolicyRequired
+ * DESCRIPTION:
+ *
+ *  Checks whether the ProcessingParams pointed to by "params" indicate that
+ *  explicit policies are required and stores the Boolean result at
+ *  "pRequired".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams used to determine whether or not explicit
+ *      policies are required. Must be non-NULL.
+ *  "pRequired"
+ *      Address where Boolean will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_IsExplicitPolicyRequired(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean *pRequired,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetExplicitPolicyRequired
+ * DESCRIPTION:
+ *
+ *  Specifies in the ProcessingParams pointed to by "params" whether explicit
+ *  policies are required using the Boolean value of "required".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams to be set. Must be non-NULL.
+ *  "required"
+ *      Boolean value indicating whether explicit policies are to be required.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetExplicitPolicyRequired(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean required,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_IsPolicyMappingInhibited
+ * DESCRIPTION:
+ *
+ *  Checks whether the ProcessingParams pointed to by "params" indicate that
+ *  policyMapping is inhibited and stores the Boolean result at "pInhibited".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams used to determine whether or not policy
+ *      mappings are inhibited. Must be non-NULL.
+ *  "pInhibited"
+ *      Address where Boolean will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_IsPolicyMappingInhibited(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean *pInhibited,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ProcessingParams_SetPolicyMappingInhibited
+ * DESCRIPTION:
+ *
+ *  Specifies in the ProcessingParams pointed to by "params" whether policy
+ *  mapping is inhibited using the Boolean value of "inhibited".
+ *
+ * PARAMETERS:
+ *  "params"
+ *      Address of ProcessingParams to be set. Must be non-NULL.
+ *  "inhibited"
+ *      Boolean value indicating whether policy mapping is to be inhibited.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ProcessingParams_SetPolicyMappingInhibited(
+        PKIX_ProcessingParams *params,
+        PKIX_Boolean inhibited,
+        void *plContext);
+
+
+/* PKIX_ValidateParams
+ *
+ * PKIX_ValidateParams consists of a ProcessingParams object as well as the
+ * List of Certs (certChain) that the caller is trying to validate.
+ */
+
+/*
+ * FUNCTION: PKIX_ValidateParams_Create
+ * DESCRIPTION:
+ *
+ *  Creates a new ValidateParams object and stores it at "pParams".
+ *
+ * PARAMETERS:
+ *  "procParams"
+ *      Address of ProcessingParams to be used. Must be non-NULL.
+ *  "chain"
+ *      Address of List of Certs (certChain) to be validated. Must be non-NULL.
+ *  "pParams"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ValidateParams_Create(
+        PKIX_ProcessingParams *procParams,
+        PKIX_List *chain,
+        PKIX_ValidateParams **pParams,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ValidateParams_GetProcessingParams
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the ProcessingParams that represent the basic
+ *  certificate processing parameters used during chain validation and chain
+ *  building from the ValidateParams pointed to by "valParams" and stores it
+ *  at "pProcParams". If the function succeeds, the pointer to the
+ *  ProcessingParams is guaranteed to be non-NULL.
+ *
+ * PARAMETERS:
+ *  "valParams"
+ *      Address of ValidateParams whose ProcessingParams are to be stored.
+ *      Must be non-NULL.
+ *  "pProcParams"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ValidateParams_GetProcessingParams(
+        PKIX_ValidateParams *valParams,
+        PKIX_ProcessingParams **pProcParams,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ValidateParams_GetCertChain
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the List of Certs (certChain) that is set in the
+ *  ValidateParams pointed to by "valParams" and stores it at "pChain". If the
+ *  function succeeds, the pointer to the CertChain is guaranteed to be
+ *  non-NULL.
+ *
+ * PARAMETERS:
+ *  "valParams"
+ *      Address of ValidateParams whose CertChain is to be stored.
+ *      Must be non-NULL.
+ *  "pChain"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ValidateParams_GetCertChain(
+        PKIX_ValidateParams *valParams,
+        PKIX_List **pChain,
+        void *plContext);
+
+/* PKIX_TrustAnchor
+ *
+ * A PKIX_TrustAnchor represents a trusted entity and can be specified using a
+ * self-signed certificate or using the trusted CA's name and public key. In
+ * order to limit the trust in the trusted entity, name constraints can also
+ * be imposed on the trust anchor.
+ */
+
+/*
+ * FUNCTION: PKIX_TrustAnchor_CreateWithCert
+ * DESCRIPTION:
+ *
+ *  Creates a new TrustAnchor object using the Cert pointed to by "cert" as
+ *  the trusted certificate and stores it at "pAnchor". Once created, a
+ *  TrustAnchor is immutable.
+ *
+ * PARAMETERS:
+ *  "cert"
+ *      Address of Cert to use as trusted certificate. Must be non-NULL.
+ *  "pAnchor"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_TrustAnchor_CreateWithCert(
+        PKIX_PL_Cert *cert,
+        PKIX_TrustAnchor **pAnchor,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_TrustAnchor_CreateWithNameKeyPair
+ * DESCRIPTION:
+ *
+ *  Creates a new TrustAnchor object using the X500Name pointed to by "name",
+ *  and the PublicKey pointed to by "pubKey" and stores it at "pAnchor". The
+ *  CertNameConstraints pointed to by "nameConstraints" (if any) are used to
+ *  limit the trust placed in this trust anchor. To indicate that name
+ *  constraints don't apply, set "nameConstraints" to NULL. Once created, a
+ *  TrustAnchor is immutable.
+ *
+ * PARAMETERS:
+ *  "name"
+ *      Address of X500Name to use as name of trusted CA. Must be non-NULL.
+ *  "pubKey"
+ *      Address of PublicKey to use as trusted public key. Must be non-NULL.
+ *  "nameConstraints"
+ *      Address of CertNameConstraints to use as initial name constraints.
+ *      If NULL, no name constraints are applied.
+ *  "pAnchor"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_TrustAnchor_CreateWithNameKeyPair(
+        PKIX_PL_X500Name *name,
+        PKIX_PL_PublicKey *pubKey,
+        PKIX_PL_CertNameConstraints *nameConstraints,
+        PKIX_TrustAnchor **pAnchor,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_TrustAnchor_GetTrustedCert
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the Cert that is set in the TrustAnchor pointed to
+ *  by "anchor" and stores it at "pCert". If "anchor" does not have a Cert
+ *  set, this function stores NULL at "pCert".
+ *
+ * PARAMETERS:
+ *  "anchor"
+ *      Address of TrustAnchor whose Cert is to be stored. Must be non-NULL.
+ *  "pChain"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_TrustAnchor_GetTrustedCert(
+        PKIX_TrustAnchor *anchor,
+        PKIX_PL_Cert **pCert,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_TrustAnchor_GetCAName
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the CA's X500Name (if any) that is set in the
+ *  TrustAnchor pointed to by "anchor" and stores it at "pCAName". If "anchor"
+ *  does not have an X500Name set, this function stores NULL at "pCAName".
+ *
+ * PARAMETERS:
+ *  "anchor"
+ *      Address of TrustAnchor whose CA Name is to be stored. Must be non-NULL.
+ *  "pCAName"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_TrustAnchor_GetCAName(
+        PKIX_TrustAnchor *anchor,
+        PKIX_PL_X500Name **pCAName,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_TrustAnchor_GetCAPublicKey
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the CA's PublicKey (if any) that is set in the
+ *  TrustAnchor pointed to by "anchor" and stores it at "pPubKey". If "anchor"
+ *  does not have a PublicKey set, this function stores NULL at "pPubKey".
+ *
+ * PARAMETERS:
+ *  "anchor"
+ *      Address of TrustAnchor whose CA PublicKey is to be stored.
+ *      Must be non-NULL.
+ *  "pPubKey"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_TrustAnchor_GetCAPublicKey(
+        PKIX_TrustAnchor *anchor,
+        PKIX_PL_PublicKey **pPubKey,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_TrustAnchor_GetNameConstraints
+ * DESCRIPTION:
+ *
+ *  Retrieves a pointer to the CertNameConstraints (if any) set in the
+ *  TrustAnchor pointed to by "anchor" and stores it at "pConstraints". If
+ *  "anchor" does not have any CertNameConstraints set, this function stores
+ *  NULL at "pConstraints".
+ *
+ * PARAMETERS:
+ *  "anchor"
+ *      Address of TrustAnchor whose CertNameConstraints are to be stored.
+ *      Must be non-NULL.
+ *  "pConstraints"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a Params Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_TrustAnchor_GetNameConstraints(
+        PKIX_TrustAnchor *anchor,
+        PKIX_PL_CertNameConstraints **pNameConstraints,
+        void *plContext);
+
+/* PKIX_ResourceLimits
+ *
+ *  A PKIX_ResourceLimits object represents the maximum resource usage that
+ *  the caller desires. The ValidateChain or BuildChain call
+ *  will not exceed these maximum limits. For example, the caller may want
+ *  a timeout value of 1 minute, meaning that if the ValidateChain or
+ *  BuildChain function is unable to finish in 1 minute, it should abort
+ *  with an Error.
+ */
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_Create
+ * DESCRIPTION:
+ *
+ *  Creates a new ResourceLimits object and stores it at "pResourceLimits".
+ *
+ * PARAMETERS:
+ *  "pResourceLimits"
+ *      Address where object pointer will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_Create(
+        PKIX_ResourceLimits **pResourceLimits,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_GetMaxTime
+ * DESCRIPTION:
+ *
+ *  Retrieves a PKIX_UInt32 (if any) representing the maximum time that is
+ *  set in the ResourceLimits object pointed to by "resourceLimits" and stores
+ *  it at "pMaxTime". This maximum time (in seconds) should not be exceeded
+ *  by the function whose ProcessingParams contain this ResourceLimits object
+ *  (typically ValidateChain or BuildChain). It essentially functions as a
+ *  time-out value and is only appropriate if blocking I/O is being used.
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum time (in seconds) is
+ *      to be stored. Must be non-NULL.
+ *  "pMaxTime"
+ *      Address where PKIX_UInt32 will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_GetMaxTime(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 *pMaxTime,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_SetMaxTime
+ * DESCRIPTION:
+ *
+ *  Sets the maximum time of the ResourceLimits object pointed to by
+ *  "resourceLimits" using the PKIX_UInt32 value of "maxTime". This
+ *  maximum time (in seconds) should not be exceeded by the function
+ *  whose ProcessingParams contain this ResourceLimits object
+ *  (typically ValidateChain or BuildChain). It essentially functions as a
+ *  time-out value and is only appropriate if blocking I/O is being used.
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum time (in seconds) is
+ *      to be set. Must be non-NULL.
+ *  "maxTime"
+ *      Value of PKIX_UInt32 representing the maximum time (in seconds)
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_SetMaxTime(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 maxTime,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_GetMaxFanout
+ * DESCRIPTION:
+ *
+ *  Retrieves a PKIX_UInt32 (if any) representing the maximum fanout that is
+ *  set in the ResourceLimits object pointed to by "resourceLimits" and stores
+ *  it at "pMaxFanout". This maximum fanout (number of certs) should not be
+ *  exceeded by the function whose ProcessingParams contain this ResourceLimits
+ *  object (typically ValidateChain or BuildChain). If the builder encounters
+ *  more than this maximum number of certificates when searching for the next
+ *  candidate certificate, it should abort and return an error. This
+ *  parameter is only relevant for ValidateChain if it needs to internally call
+ *  BuildChain (e.g. in order to build the chain to a CRL's issuer).
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum fanout (number of certs)
+ *      is to be stored. Must be non-NULL.
+ *  "pMaxFanout"
+ *      Address where PKIX_UInt32 will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_GetMaxFanout(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 *pMaxFanout,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_SetMaxFanout
+ * DESCRIPTION:
+ *
+ *  Sets the maximum fanout of the ResourceLimits object pointed to by
+ *  "resourceLimits" using the PKIX_UInt32 value of "maxFanout". This maximum
+ *  fanout (number of certs) should not be exceeded by the function whose
+ *  ProcessingParams contain this ResourceLimits object (typically ValidateChain
+ *  or BuildChain). If the builder encounters more than this maximum number of
+ *  certificates when searching for the next candidate certificate, it should
+ *  abort and return an Error. This parameter is only relevant for ValidateChain
+ *  if it needs to internally call BuildChain (e.g. in order to build the
+ *  chain to a CRL's issuer).
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum fanout (number of certs)
+ *      is to be set. Must be non-NULL.
+ *  "maxFanout"
+ *      Value of PKIX_UInt32 representing the maximum fanout (number of certs)
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_SetMaxFanout(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 maxFanout,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_GetMaxDepth
+ * DESCRIPTION:
+ *
+ *  Retrieves a PKIX_UInt32 (if any) representing the maximum depth that is
+ *  set in the ResourceLimits object pointed to by "resourceLimits" and stores
+ *  it at "pMaxDepth". This maximum depth (number of certs) should not be
+ *  exceeded by the function whose ProcessingParams contain this ResourceLimits
+ *  object (typically ValidateChain or BuildChain). If the builder encounters
+ *  more than this maximum number of certificates when searching for the next
+ *  candidate certificate, it should abort and return an error. This
+ *  parameter is only relevant for ValidateChain if it needs to internally call
+ *  BuildChain (e.g. in order to build the chain to a CRL's issuer).
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum depth (number of certs)
+ *      is to be stored. Must be non-NULL.
+ *  "pMaxDepth"
+ *      Address where PKIX_UInt32 will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_GetMaxDepth(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 *pMaxDepth,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_SetMaxDepth
+ * DESCRIPTION:
+ *
+ *  Sets the maximum depth of the ResourceLimits object pointed to by
+ *  "resourceLimits" using the PKIX_UInt32 value of "maxDepth". This maximum
+ *  depth (number of certs) should not be exceeded by the function whose
+ *  ProcessingParams contain this ResourceLimits object (typically ValidateChain
+ *  or BuildChain). If the builder encounters more than this maximum number of
+ *  certificates when searching for the next candidate certificate, it should
+ *  abort and return an Error. This parameter is only relevant for ValidateChain
+ *  if it needs to internally call BuildChain (e.g. in order to build the
+ *  chain to a CRL's issuer).
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum depth (number of certs)
+ *      is to be set. Must be non-NULL.
+ *  "maxDepth"
+ *      Value of PKIX_UInt32 representing the maximum depth (number of certs)
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_SetMaxDepth(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 maxDepth,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_GetMaxNumberOfCerts
+ * DESCRIPTION:
+ *
+ *  Retrieves a PKIX_UInt32 (if any) representing the maximum number of traversed
+ *  certs that is set in the ResourceLimits object pointed to by "resourceLimits"
+ *  and stores it at "pMaxNumber". This maximum number of traversed certs should
+ *  not be exceeded by the function whose ProcessingParams contain this ResourceLimits
+ *  object (typically ValidateChain or BuildChain). If the builder traverses more
+ *  than this number of certs during the build process, it should abort and
+ *  return an Error. This parameter is only relevant for ValidateChain if it
+ *  needs to internally call BuildChain (e.g. in order to build the chain to a
+ *  CRL's issuer).
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum number of traversed certs
+ *      is to be stored. Must be non-NULL.
+ *  "pMaxNumber"
+ *      Address where PKIX_UInt32 will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_GetMaxNumberOfCerts(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 *pMaxNumber,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_SetMaxNumberOfCerts
+ * DESCRIPTION:
+ *
+ *  Sets the maximum number of traversed certs of the ResourceLimits object
+ *  pointed to by "resourceLimits" using the PKIX_UInt32 value of "maxNumber".
+ *  This maximum number of traversed certs should not be exceeded by the function 
+ *  whose ProcessingParams contain this ResourceLimits object (typically ValidateChain
+ *  or BuildChain). If the builder traverses more than this number of certs
+ *  during the build process, it should abort and return an Error. This parameter
+ *  is only relevant for ValidateChain if it needs to internally call BuildChain
+ *  (e.g. in order to build the chain to a CRL's issuer).
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum number of traversed certs
+ *      is to be set. Must be non-NULL.
+ *  "maxNumber"
+ *      Value of PKIX_UInt32 representing the maximum number of traversed certs
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_SetMaxNumberOfCerts(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 maxNumber,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_GetMaxNumberOfCRLs
+ * DESCRIPTION:
+ *
+ *  Retrieves a PKIX_UInt32 (if any) representing the maximum number of traversed
+ *  CRLs that is set in the ResourceLimits object pointed to by "resourceLimits"
+ *  and stores it at "pMaxNumber". This maximum number of traversed CRLs should
+ *  not be exceeded by the function whose ProcessingParams contain this ResourceLimits
+ *  object (typically ValidateChain or BuildChain). If the builder traverses more
+ *  than this number of CRLs during the build process, it should abort and
+ *  return an Error. This parameter is only relevant for ValidateChain if it
+ *  needs to internally call BuildChain (e.g. in order to build the chain to a
+ *  CRL's issuer).
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum number of traversed CRLs
+ *      is to be stored. Must be non-NULL.
+ *  "pMaxNumber"
+ *      Address where PKIX_UInt32 will be stored. Must be non-NULL.
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Conditionally Thread Safe
+ *      (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_GetMaxNumberOfCRLs(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 *pMaxNumber,
+        void *plContext);
+
+/*
+ * FUNCTION: PKIX_ResourceLimits_SetMaxNumberOfCRLs
+ * DESCRIPTION:
+ *
+ *  Sets the maximum number of traversed CRLs of the ResourceLimits object
+ *  pointed to by "resourceLimits" using the PKIX_UInt32 value of "maxNumber".
+ *  This maximum number of traversed CRLs should not be exceeded by the function 
+ *  whose ProcessingParams contain this ResourceLimits object (typically ValidateChain
+ *  or BuildChain). If the builder traverses more than this number of CRLs
+ *  during the build process, it should abort and return an Error. This parameter
+ *  is only relevant for ValidateChain if it needs to internally call BuildChain
+ *  (e.g. in order to build the chain to a CRL's issuer).
+ *
+ * PARAMETERS:
+ *  "resourceLimits"
+ *      Address of ResourceLimits object whose maximum number of traversed CRLs
+ *      is to be set. Must be non-NULL.
+ *  "maxNumber"
+ *      Value of PKIX_UInt32 representing the maximum number of traversed CRLs
+ *  "plContext"
+ *      Platform-specific context pointer.
+ * THREAD SAFETY:
+ *  Not Thread Safe - assumes exclusive access to "params"
+ *  (see Thread Safety Definitions in Programmer's Guide)
+ * RETURNS:
+ *  Returns NULL if the function succeeds.
+ *  Returns a ResourceLimits Error if the function fails in a non-fatal way.
+ *  Returns a Fatal Error if the function fails in an unrecoverable way.
+ */
+PKIX_Error *
+PKIX_ResourceLimits_SetMaxNumberOfCRLs(
+        PKIX_ResourceLimits *resourceLimits,
+        PKIX_UInt32 maxNumber,
+        void *plContext);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PKIX_PARAMS_H */