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-rw-r--r--security/nss/lib/certdb/certi.h407
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diff --git a/security/nss/lib/certdb/certi.h b/security/nss/lib/certdb/certi.h
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+/* 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/. */
+/*
+ * certi.h - private data structures for the certificate library
+ */
+#ifndef _CERTI_H_
+#define _CERTI_H_
+
+#include "certt.h"
+#include "nssrwlkt.h"
+
+/*
+#define GLOBAL_RWLOCK 1
+*/
+
+#define DPC_RWLOCK 1
+
+/* all definitions in this file are subject to change */
+
+typedef struct OpaqueCRLFieldsStr OpaqueCRLFields;
+typedef struct CRLEntryCacheStr CRLEntryCache;
+typedef struct CRLDPCacheStr CRLDPCache;
+typedef struct CRLIssuerCacheStr CRLIssuerCache;
+typedef struct CRLCacheStr CRLCache;
+typedef struct CachedCrlStr CachedCrl;
+typedef struct NamedCRLCacheStr NamedCRLCache;
+typedef struct NamedCRLCacheEntryStr NamedCRLCacheEntry;
+
+struct OpaqueCRLFieldsStr {
+ PRBool partial;
+ PRBool decodingError;
+ PRBool badEntries;
+ PRBool badDER;
+ PRBool badExtensions;
+ PRBool heapDER;
+};
+
+typedef struct PreAllocatorStr PreAllocator;
+
+struct PreAllocatorStr {
+ PRSize len;
+ void* data;
+ PRSize used;
+ PLArenaPool* arena;
+ PRSize extra;
+};
+
+/* CRL entry cache.
+ This is the same as an entry plus the next/prev pointers for the hash table
+*/
+
+struct CRLEntryCacheStr {
+ CERTCrlEntry entry;
+ CRLEntryCache *prev, *next;
+};
+
+#define CRL_CACHE_INVALID_CRLS 0x0001 /* this state will be set \
+ if we have CRL objects with an invalid DER or signature. Can be \
+ cleared if the invalid objects are deleted from the token */
+#define CRL_CACHE_LAST_FETCH_FAILED 0x0002 /* this state will be set \
+ if the last CRL fetch encountered an error. Can be cleared if a \
+ new fetch succeeds */
+
+#define CRL_CACHE_OUT_OF_MEMORY 0x0004 /* this state will be set \
+ if we don't have enough memory to build the hash table of entries */
+
+typedef enum {
+ CRL_OriginToken = 0, /* CRL came from PKCS#11 token */
+ CRL_OriginExplicit = 1 /* CRL was explicitly added to the cache, from RAM */
+} CRLOrigin;
+
+typedef enum {
+ dpcacheNoEntry = 0, /* no entry found for this SN */
+ dpcacheFoundEntry = 1, /* entry found for this SN */
+ dpcacheCallerError = 2, /* invalid args */
+ dpcacheInvalidCacheError = 3, /* CRL in cache may be bad DER */
+ /* or unverified */
+ dpcacheEmpty = 4, /* no CRL in cache */
+ dpcacheLookupError = 5 /* internal error */
+} dpcacheStatus;
+
+struct CachedCrlStr {
+ CERTSignedCrl* crl;
+ CRLOrigin origin;
+ /* hash table of entries. We use a PLHashTable and pre-allocate the
+ required amount of memory in one shot, so that our allocator can
+ simply pass offsets into it when hashing.
+
+ This won't work anymore when we support delta CRLs and iCRLs, because
+ the size of the hash table will vary over time. At that point, the best
+ solution will be to allocate large CRLEntry structures by modifying
+ the DER decoding template. The extra space would be for next/prev
+ pointers. This would allow entries from different CRLs to be mixed in
+ the same hash table.
+ */
+ PLHashTable* entries;
+ PreAllocator* prebuffer; /* big pre-allocated buffer mentioned above */
+ PRBool sigChecked; /* this CRL signature has already been checked */
+ PRBool sigValid; /* signature verification status .
+ Only meaningful if checked is PR_TRUE . */
+ PRBool unbuildable; /* Avoid using assosiated CRL is it fails
+ * a decoding step */
+};
+
+/* CRL distribution point cache object
+ This is a cache of CRL entries for a given distribution point of an issuer
+ It is built from a collection of one full and 0 or more delta CRLs.
+*/
+
+struct CRLDPCacheStr {
+#ifdef DPC_RWLOCK
+ NSSRWLock* lock;
+#else
+ PRLock* lock;
+#endif
+ SECItem* issuerDERCert; /* issuer DER cert. Don't hold a reference
+ to the actual cert so the trust can be
+ updated on the cert automatically.
+ XXX there may be multiple issuer certs,
+ with different validity dates. Also
+ need to deal with SKID/AKID . See
+ bugzilla 217387, 233118 */
+
+ CERTCertDBHandle* dbHandle;
+
+ SECItem* subject; /* DER of issuer subject */
+ SECItem* distributionPoint; /* DER of distribution point. This may be
+ NULL when distribution points aren't
+ in use (ie. the CA has a single CRL).
+ Currently not used. */
+
+ /* array of full CRLs matching this distribution point */
+ PRUint32 ncrls; /* total number of CRLs in crls */
+ CachedCrl** crls; /* array of all matching CRLs */
+ /* XCRL With iCRLs and multiple DPs, the CRL can be shared accross several
+ issuers. In the future, we'll need to globally recycle the CRL in a
+ separate list in order to avoid extra lookups, decodes, and copies */
+
+ /* pointers to good decoded CRLs used to build the cache */
+ CachedCrl* selected; /* full CRL selected for use in the cache */
+#if 0
+ /* for future use */
+ PRInt32 numdeltas; /* number of delta CRLs used for the cache */
+ CachedCrl** deltas; /* delta CRLs used for the cache */
+#endif
+ /* cache invalidity bitflag */
+ PRUint16 invalid; /* this state will be set if either
+ CRL_CACHE_INVALID_CRLS or CRL_CACHE_LAST_FETCH_FAILED is set.
+ In those cases, all certs are considered to have unknown status.
+ The invalid state can only be cleared during an update if all
+ error states are cleared */
+ PRBool refresh; /* manual refresh from tokens has been forced */
+ PRBool mustchoose; /* trigger reselection algorithm, for case when
+ RAM CRL objects are dropped from the cache */
+ PRTime lastfetch; /* time a CRL token fetch was last performed */
+ PRTime lastcheck; /* time CRL token objects were last checked for
+ existence */
+};
+
+/* CRL issuer cache object
+ This object tracks all the distribution point caches for a given issuer.
+ XCRL once we support multiple issuing distribution points, this object
+ will be a hash table. For now, it just holds the single CRL distribution
+ point cache structure.
+*/
+
+struct CRLIssuerCacheStr {
+ SECItem* subject; /* DER of issuer subject */
+ CRLDPCache* dpp;
+};
+
+/* CRL revocation cache object
+ This object tracks all the issuer caches
+*/
+
+struct CRLCacheStr {
+#ifdef GLOBAL_RWLOCK
+ NSSRWLock* lock;
+#else
+ PRLock* lock;
+#endif
+ /* hash table of issuer to CRLIssuerCacheStr,
+ indexed by issuer DER subject */
+ PLHashTable* issuers;
+};
+
+SECStatus InitCRLCache(void);
+SECStatus ShutdownCRLCache(void);
+
+/* Returns a pointer to an environment-like string, a series of
+** null-terminated strings, terminated by a zero-length string.
+** This function is intended to be internal to NSS.
+*/
+extern char* cert_GetCertificateEmailAddresses(CERTCertificate* cert);
+
+/*
+ * These functions are used to map subjectKeyID extension values to certs
+ * and to keep track of the checks for user certificates in each slot
+ */
+SECStatus cert_CreateSubjectKeyIDHashTable(void);
+
+SECStatus cert_AddSubjectKeyIDMapping(SECItem* subjKeyID,
+ CERTCertificate* cert);
+
+SECStatus cert_UpdateSubjectKeyIDSlotCheck(SECItem* slotid, int series);
+
+int cert_SubjectKeyIDSlotCheckSeries(SECItem* slotid);
+
+/*
+ * Call this function to remove an entry from the mapping table.
+ */
+SECStatus cert_RemoveSubjectKeyIDMapping(SECItem* subjKeyID);
+
+SECStatus cert_DestroySubjectKeyIDHashTable(void);
+
+SECItem* cert_FindDERCertBySubjectKeyID(SECItem* subjKeyID);
+
+/* return maximum length of AVA value based on its type OID tag. */
+extern int cert_AVAOidTagToMaxLen(SECOidTag tag);
+
+/* Make an AVA, allocated from pool, from OID and DER encoded value */
+extern CERTAVA* CERT_CreateAVAFromRaw(PLArenaPool* pool, const SECItem* OID,
+ const SECItem* value);
+
+/* Make an AVA from binary input specified by SECItem */
+extern CERTAVA* CERT_CreateAVAFromSECItem(PLArenaPool* arena, SECOidTag kind,
+ int valueType, SECItem* value);
+
+/*
+ * get a DPCache object for the given issuer subject and dp
+ * Automatically creates the cache object if it doesn't exist yet.
+ */
+SECStatus AcquireDPCache(CERTCertificate* issuer, const SECItem* subject,
+ const SECItem* dp, PRTime t, void* wincx,
+ CRLDPCache** dpcache, PRBool* writeLocked);
+
+/* check if a particular SN is in the CRL cache and return its entry */
+dpcacheStatus DPCache_Lookup(CRLDPCache* cache, const SECItem* sn,
+ CERTCrlEntry** returned);
+
+/* release a DPCache object that was previously acquired */
+void ReleaseDPCache(CRLDPCache* dpcache, PRBool writeLocked);
+
+/*
+ * map Stan errors into NSS errors
+ * This function examines the stan error stack and automatically sets
+ * PORT_SetError(); to the appropriate SEC_ERROR value.
+ */
+void CERT_MapStanError();
+
+/* Like CERT_VerifyCert, except with an additional argument, flags. The
+ * flags are defined immediately below.
+ */
+SECStatus cert_VerifyCertWithFlags(CERTCertDBHandle* handle,
+ CERTCertificate* cert, PRBool checkSig,
+ SECCertUsage certUsage, PRTime t,
+ PRUint32 flags, void* wincx,
+ CERTVerifyLog* log);
+
+/* Use the default settings.
+ * cert_VerifyCertWithFlags(..., CERT_VERIFYCERT_USE_DEFAULTS, ...) is
+ * equivalent to CERT_VerifyCert(...);
+ */
+#define CERT_VERIFYCERT_USE_DEFAULTS 0
+
+/* Skip all the OCSP checks during certificate verification, regardless of
+ * the global OCSP settings. By default, certificate |cert| will have its
+ * revocation status checked via OCSP according to the global OCSP settings.
+ *
+ * OCSP checking is always skipped when certUsage is certUsageStatusResponder.
+ */
+#define CERT_VERIFYCERT_SKIP_OCSP 1
+
+/* Interface function for libpkix cert validation engine:
+ * cert_verify wrapper. */
+SECStatus cert_VerifyCertChainPkix(CERTCertificate* cert, PRBool checkSig,
+ SECCertUsage requiredUsage, PRTime time,
+ void* wincx, CERTVerifyLog* log,
+ PRBool* sigError, PRBool* revoked);
+
+SECStatus cert_InitLocks(void);
+
+SECStatus cert_DestroyLocks(void);
+
+/*
+ * fill in nsCertType field of the cert based on the cert extension
+ */
+extern SECStatus cert_GetCertType(CERTCertificate* cert);
+
+/*
+ * compute and return the value of nsCertType for cert, but do not
+ * update the CERTCertificate.
+ */
+extern PRUint32 cert_ComputeCertType(CERTCertificate* cert);
+
+extern PRBool cert_EKUAllowsIPsecIKE(CERTCertificate* cert,
+ PRBool* isCritical);
+
+void cert_AddToVerifyLog(CERTVerifyLog* log, CERTCertificate* cert,
+ long errorCode, unsigned int depth, void* arg);
+
+/* Insert a DER CRL into the CRL cache, and take ownership of it.
+ *
+ * cert_CacheCRLByGeneralName takes ownership of the memory in crl argument
+ * completely. crl must be freeable by SECITEM_FreeItem. It will be freed
+ * immediately if it is rejected from the CRL cache, or later during cache
+ * updates when a new crl is available, or at shutdown time.
+ *
+ * canonicalizedName represents the source of the CRL, a GeneralName.
+ * The format of the encoding is not restricted, but all callers of
+ * cert_CacheCRLByGeneralName and cert_FindCRLByGeneralName must use
+ * the same encoding. To facilitate X.500 name matching, a canonicalized
+ * encoding of the GeneralName should be used, if available.
+ */
+
+SECStatus cert_CacheCRLByGeneralName(CERTCertDBHandle* dbhandle, SECItem* crl,
+ const SECItem* canonicalizedName);
+
+struct NamedCRLCacheStr {
+ PRLock* lock;
+ PLHashTable* entries;
+};
+
+/* NamedCRLCacheEntryStr is filled in by cert_CacheCRLByGeneralName,
+ * and read by cert_FindCRLByGeneralName */
+struct NamedCRLCacheEntryStr {
+ SECItem* canonicalizedName;
+ SECItem* crl; /* DER, kept only if CRL
+ * is successfully cached */
+ PRBool inCRLCache;
+ PRTime successfulInsertionTime; /* insertion time */
+ PRTime lastAttemptTime; /* time of last call to
+ cert_CacheCRLByGeneralName with this name */
+ PRBool badDER; /* ASN.1 error */
+ PRBool dupe; /* matching DER CRL already in CRL cache */
+ PRBool unsupported; /* IDP, delta, any other reason */
+};
+
+typedef enum {
+ certRevocationStatusRevoked = 0,
+ certRevocationStatusValid = 1,
+ certRevocationStatusUnknown = 2
+} CERTRevocationStatus;
+
+/* Returns detailed status of the cert(revStatus variable). Tells if
+ * issuer cache has OriginFetchedWithTimeout crl in it. */
+SECStatus cert_CheckCertRevocationStatus(CERTCertificate* cert,
+ CERTCertificate* issuer,
+ const SECItem* dp, PRTime t,
+ void* wincx,
+ CERTRevocationStatus* revStatus,
+ CERTCRLEntryReasonCode* revReason);
+
+SECStatus cert_AcquireNamedCRLCache(NamedCRLCache** returned);
+
+/* cert_FindCRLByGeneralName must be called only while the named cache is
+ * acquired, and the entry is only valid until cache is released.
+ */
+SECStatus cert_FindCRLByGeneralName(NamedCRLCache* ncc,
+ const SECItem* canonicalizedName,
+ NamedCRLCacheEntry** retEntry);
+
+SECStatus cert_ReleaseNamedCRLCache(NamedCRLCache* ncc);
+
+/* This is private for now. Maybe shoule be public. */
+CERTGeneralName* cert_GetSubjectAltNameList(const CERTCertificate* cert,
+ PLArenaPool* arena);
+
+/* Count DNS names and IP addresses in a list of GeneralNames */
+PRUint32 cert_CountDNSPatterns(CERTGeneralName* firstName);
+
+/*
+ * returns the trust status of the leaf certificate based on usage.
+ * If the leaf is explicitly untrusted, this function will fail and
+ * failedFlags will be set to the trust bit value that lead to the failure.
+ * If the leaf is trusted, isTrusted is set to true and the function returns
+ * SECSuccess. This function does not check if the cert is fit for a
+ * particular usage.
+ */
+SECStatus cert_CheckLeafTrust(CERTCertificate* cert, SECCertUsage usage,
+ unsigned int* failedFlags, PRBool* isTrusted);
+
+/*
+ * Acquire the cert temp/perm lock
+ */
+void CERT_LockCertTempPerm(const CERTCertificate* cert);
+
+/*
+ * Release the temp/perm lock
+ */
+void CERT_UnlockCertTempPerm(const CERTCertificate* cert);
+
+/*
+ * Acquire the cert trust lock
+ * There is currently one global lock for all certs, but I'm putting a cert
+ * arg here so that it will be easy to make it per-cert in the future if
+ * that turns out to be necessary.
+ */
+void CERT_LockCertTrust(const CERTCertificate* cert);
+
+/*
+ * Release the cert trust lock
+ */
+void CERT_UnlockCertTrust(const CERTCertificate* cert);
+
+#endif /* _CERTI_H_ */