diff options
Diffstat (limited to 'security/nss/lib/softoken/legacydb/pcertdb.c')
| -rw-r--r-- | security/nss/lib/softoken/legacydb/pcertdb.c | 5366 |
1 files changed, 5366 insertions, 0 deletions
diff --git a/security/nss/lib/softoken/legacydb/pcertdb.c b/security/nss/lib/softoken/legacydb/pcertdb.c new file mode 100644 index 000000000..966164db1 --- /dev/null +++ b/security/nss/lib/softoken/legacydb/pcertdb.c @@ -0,0 +1,5366 @@ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape security libraries. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1994-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * Permanent Certificate database handling code + * + * $Id$ + */ +#include "lowkeyti.h" +#include "pcert.h" +#include "mcom_db.h" +#include "pcert.h" +#include "secitem.h" +#include "secder.h" + +#include "secerr.h" +#include "lgdb.h" + +/* forward declaration */ +NSSLOWCERTCertificate * +nsslowcert_FindCertByDERCertNoLocking(NSSLOWCERTCertDBHandle *handle, SECItem *derCert); +static SECStatus +nsslowcert_UpdateSMimeProfile(NSSLOWCERTCertDBHandle *dbhandle, + char *emailAddr, SECItem *derSubject, SECItem *emailProfile, + SECItem *profileTime); +static SECStatus +nsslowcert_UpdatePermCert(NSSLOWCERTCertDBHandle *dbhandle, + NSSLOWCERTCertificate *cert, char *nickname, NSSLOWCERTCertTrust *trust); +static SECStatus +nsslowcert_UpdateCrl(NSSLOWCERTCertDBHandle *handle, SECItem *derCrl, + SECItem *crlKey, char *url, PRBool isKRL); + +static NSSLOWCERTCertificate *certListHead = NULL; +static NSSLOWCERTTrust *trustListHead = NULL; +static certDBEntryCert *entryListHead = NULL; +static int certListCount = 0; +static int trustListCount = 0; +static int entryListCount = 0; +#define MAX_CERT_LIST_COUNT 10 +#define MAX_TRUST_LIST_COUNT 10 +#define MAX_ENTRY_LIST_COUNT 10 + +/* + * the following functions are wrappers for the db library that implement + * a global lock to make the database thread safe. + */ +static PZLock *dbLock = NULL; +static PZLock *certRefCountLock = NULL; +static PZLock *certTrustLock = NULL; +static PZLock *freeListLock = NULL; + +void +certdb_InitDBLock(NSSLOWCERTCertDBHandle *handle) +{ + if (dbLock == NULL) { + dbLock = PZ_NewLock(nssILockCertDB); + PORT_Assert(dbLock != NULL); + } +} + +SECStatus +nsslowcert_InitLocks(void) +{ + if (freeListLock == NULL) { + freeListLock = PZ_NewLock(nssILockRefLock); + if (freeListLock == NULL) { + return SECFailure; + } + } + if (certRefCountLock == NULL) { + certRefCountLock = PZ_NewLock(nssILockRefLock); + if (certRefCountLock == NULL) { + return SECFailure; + } + } + if (certTrustLock == NULL ) { + certTrustLock = PZ_NewLock(nssILockCertDB); + if (certTrustLock == NULL) { + return SECFailure; + } + } + + return SECSuccess; +} + +/* + * Acquire the global lock on the cert database. + * This lock is currently used for the following operations: + * adding or deleting a cert to either the temp or perm databases + * converting a temp to perm or perm to temp + * changing (maybe just adding!?) the trust of a cert + * chaning the DB status checking Configuration + */ +static void +nsslowcert_LockDB(NSSLOWCERTCertDBHandle *handle) +{ + PZ_EnterMonitor(handle->dbMon); + return; +} + +/* + * Free the global cert database lock. + */ +static void +nsslowcert_UnlockDB(NSSLOWCERTCertDBHandle *handle) +{ + PRStatus prstat; + + prstat = PZ_ExitMonitor(handle->dbMon); + + PORT_Assert(prstat == PR_SUCCESS); + + return; +} + + +/* + * Acquire the cert reference count 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. + */ +static void +nsslowcert_LockCertRefCount(NSSLOWCERTCertificate *cert) +{ + PORT_Assert(certRefCountLock != NULL); + + PZ_Lock(certRefCountLock); + return; +} + +/* + * Free the cert reference count lock + */ +static void +nsslowcert_UnlockCertRefCount(NSSLOWCERTCertificate *cert) +{ + PRStatus prstat; + + PORT_Assert(certRefCountLock != NULL); + + prstat = PZ_Unlock(certRefCountLock); + + PORT_Assert(prstat == PR_SUCCESS); + + return; +} + +/* + * 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. + */ +static void +nsslowcert_LockCertTrust(NSSLOWCERTCertificate *cert) +{ + PORT_Assert(certTrustLock != NULL); + + PZ_Lock(certTrustLock); + return; +} + +/* + * Free the cert trust lock + */ +static void +nsslowcert_UnlockCertTrust(NSSLOWCERTCertificate *cert) +{ + PRStatus prstat; + + PORT_Assert(certTrustLock != NULL); + + prstat = PZ_Unlock(certTrustLock); + + PORT_Assert(prstat == PR_SUCCESS); + + return; +} + + +/* + * Acquire the cert reference count 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. + */ +static void +nsslowcert_LockFreeList(void) +{ + PORT_Assert(freeListLock != NULL); + + PZ_Lock(freeListLock); + return; +} + +/* + * Free the cert reference count lock + */ +static void +nsslowcert_UnlockFreeList(void) +{ + PRStatus prstat; + + PORT_Assert(freeListLock != NULL); + + prstat = PZ_Unlock(freeListLock); + + PORT_Assert(prstat == PR_SUCCESS); + + return; +} + +NSSLOWCERTCertificate * +nsslowcert_DupCertificate(NSSLOWCERTCertificate *c) +{ + if (c) { + nsslowcert_LockCertRefCount(c); + ++c->referenceCount; + nsslowcert_UnlockCertRefCount(c); + } + return c; +} + +static int +certdb_Get(DB *db, DBT *key, DBT *data, unsigned int flags) +{ + PRStatus prstat; + int ret; + + PORT_Assert(dbLock != NULL); + PZ_Lock(dbLock); + + ret = (* db->get)(db, key, data, flags); + + prstat = PZ_Unlock(dbLock); + + return(ret); +} + +static int +certdb_Put(DB *db, DBT *key, DBT *data, unsigned int flags) +{ + PRStatus prstat; + int ret = 0; + + PORT_Assert(dbLock != NULL); + PZ_Lock(dbLock); + + ret = (* db->put)(db, key, data, flags); + + prstat = PZ_Unlock(dbLock); + + return(ret); +} + +static int +certdb_Sync(DB *db, unsigned int flags) +{ + PRStatus prstat; + int ret; + + PORT_Assert(dbLock != NULL); + PZ_Lock(dbLock); + + ret = (* db->sync)(db, flags); + + prstat = PZ_Unlock(dbLock); + + return(ret); +} + +#define DB_NOT_FOUND -30991 /* from DBM 3.2 */ +static int +certdb_Del(DB *db, DBT *key, unsigned int flags) +{ + PRStatus prstat; + int ret; + + PORT_Assert(dbLock != NULL); + PZ_Lock(dbLock); + + ret = (* db->del)(db, key, flags); + + prstat = PZ_Unlock(dbLock); + + /* don't fail if the record is already deleted */ + if (ret == DB_NOT_FOUND) { + ret = 0; + } + + return(ret); +} + +static int +certdb_Seq(DB *db, DBT *key, DBT *data, unsigned int flags) +{ + PRStatus prstat; + int ret; + + PORT_Assert(dbLock != NULL); + PZ_Lock(dbLock); + + ret = (* db->seq)(db, key, data, flags); + + prstat = PZ_Unlock(dbLock); + + return(ret); +} + +static void +certdb_Close(DB *db) +{ + PRStatus prstat; + + PORT_Assert(dbLock != NULL); + PZ_Lock(dbLock); + + (* db->close)(db); + + prstat = PZ_Unlock(dbLock); + + return; +} + +void +pkcs11_freeNickname(char *nickname, char *space) +{ + if (nickname && nickname != space) { + PORT_Free(nickname); + } +} + +char * +pkcs11_copyNickname(char *nickname,char *space, int spaceLen) +{ + int len; + char *copy = NULL; + + len = PORT_Strlen(nickname)+1; + if (len <= spaceLen) { + copy = space; + PORT_Memcpy(copy,nickname,len); + } else { + copy = PORT_Strdup(nickname); + } + + return copy; +} + +void +pkcs11_freeStaticData (unsigned char *data, unsigned char *space) +{ + if (data && data != space) { + PORT_Free(data); + } +} + +unsigned char * +pkcs11_allocStaticData(int len, unsigned char *space, int spaceLen) +{ + unsigned char *data = NULL; + + if (len <= spaceLen) { + data = space; + } else { + data = (unsigned char *) PORT_Alloc(len); + } + + return data; +} + +unsigned char * +pkcs11_copyStaticData(unsigned char *data, int len, + unsigned char *space, int spaceLen) +{ + unsigned char *copy = pkcs11_allocStaticData(len, space, spaceLen); + if (copy) { + PORT_Memcpy(copy,data,len); + } + + return copy; +} + +/* + * destroy a database entry + */ +static void +DestroyDBEntry(certDBEntry *entry) +{ + PRArenaPool *arena = entry->common.arena; + + /* must be one of our certDBEntry from the free list */ + if (arena == NULL) { + certDBEntryCert *certEntry; + if ( entry->common.type != certDBEntryTypeCert) { + return; + } + certEntry = (certDBEntryCert *)entry; + + pkcs11_freeStaticData(certEntry->derCert.data, certEntry->derCertSpace); + pkcs11_freeNickname(certEntry->nickname, certEntry->nicknameSpace); + + nsslowcert_LockFreeList(); + if (entryListCount > MAX_ENTRY_LIST_COUNT) { + PORT_Free(certEntry); + } else { + entryListCount++; + PORT_Memset(certEntry, 0, sizeof( *certEntry)); + certEntry->next = entryListHead; + entryListHead = certEntry; + } + nsslowcert_UnlockFreeList(); + return; + } + + + /* Zero out the entry struct, so that any further attempts to use it + * will cause an exception (e.g. null pointer reference). */ + PORT_Memset(&entry->common, 0, sizeof entry->common); + PORT_FreeArena(arena, PR_FALSE); + + return; +} + +/* forward references */ +static void nsslowcert_DestroyCertificateNoLocking(NSSLOWCERTCertificate *cert); + +static SECStatus +DeleteDBEntry(NSSLOWCERTCertDBHandle *handle, certDBEntryType type, SECItem *dbkey) +{ + DBT key; + int ret; + + /* init the database key */ + key.data = dbkey->data; + key.size = dbkey->len; + + dbkey->data[0] = (unsigned char)type; + + /* delete entry from database */ + ret = certdb_Del(handle->permCertDB, &key, 0 ); + if ( ret != 0 ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + ret = certdb_Sync(handle->permCertDB, 0); + if ( ret ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + return(SECSuccess); + +loser: + return(SECFailure); +} + +static SECStatus +ReadDBEntry(NSSLOWCERTCertDBHandle *handle, certDBEntryCommon *entry, + SECItem *dbkey, SECItem *dbentry, PRArenaPool *arena) +{ + DBT data, key; + int ret; + unsigned char *buf; + + /* init the database key */ + key.data = dbkey->data; + key.size = dbkey->len; + + dbkey->data[0] = (unsigned char)entry->type; + + /* read entry from database */ + ret = certdb_Get(handle->permCertDB, &key, &data, 0 ); + if ( ret != 0 ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + /* validate the entry */ + if ( data.size < SEC_DB_ENTRY_HEADER_LEN ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + buf = (unsigned char *)data.data; + /* version 7 has the same schema, we may be using a v7 db if we openned + * the databases readonly. */ + if (!((buf[0] == (unsigned char)CERT_DB_FILE_VERSION) + || (buf[0] == (unsigned char) CERT_DB_V7_FILE_VERSION))) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + if ( buf[1] != (unsigned char)entry->type ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + /* copy out header information */ + entry->version = (unsigned int)buf[0]; + entry->type = (certDBEntryType)buf[1]; + entry->flags = (unsigned int)buf[2]; + + /* format body of entry for return to caller */ + dbentry->len = data.size - SEC_DB_ENTRY_HEADER_LEN; + if ( dbentry->len ) { + if (arena) { + dbentry->data = (unsigned char *) + PORT_ArenaAlloc(arena, dbentry->len); + if ( dbentry->data == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + PORT_Memcpy(dbentry->data, &buf[SEC_DB_ENTRY_HEADER_LEN], + dbentry->len); + } else { + dbentry->data = &buf[SEC_DB_ENTRY_HEADER_LEN]; + } + } else { + dbentry->data = NULL; + } + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/** + ** Implement low level database access + **/ +static SECStatus +WriteDBEntry(NSSLOWCERTCertDBHandle *handle, certDBEntryCommon *entry, + SECItem *dbkey, SECItem *dbentry) +{ + int ret; + DBT data, key; + unsigned char *buf; + + data.data = dbentry->data; + data.size = dbentry->len; + + buf = (unsigned char*)data.data; + + buf[0] = (unsigned char)entry->version; + buf[1] = (unsigned char)entry->type; + buf[2] = (unsigned char)entry->flags; + + key.data = dbkey->data; + key.size = dbkey->len; + + dbkey->data[0] = (unsigned char)entry->type; + + /* put the record into the database now */ + ret = certdb_Put(handle->permCertDB, &key, &data, 0); + + if ( ret != 0 ) { + goto loser; + } + + ret = certdb_Sync( handle->permCertDB, 0 ); + + if ( ret ) { + goto loser; + } + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * encode a database cert record + */ +static SECStatus +EncodeDBCertEntry(certDBEntryCert *entry, PRArenaPool *arena, SECItem *dbitem) +{ + unsigned int nnlen; + unsigned char *buf; + char *nn; + char zbuf = 0; + + if ( entry->nickname ) { + nn = entry->nickname; + } else { + nn = &zbuf; + } + nnlen = PORT_Strlen(nn) + 1; + + /* allocate space for encoded database record, including space + * for low level header + */ + dbitem->len = entry->derCert.len + nnlen + DB_CERT_ENTRY_HEADER_LEN + + SEC_DB_ENTRY_HEADER_LEN; + + dbitem->data = (unsigned char *)PORT_ArenaAlloc(arena, dbitem->len); + if ( dbitem->data == NULL) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + /* fill in database record */ + buf = &dbitem->data[SEC_DB_ENTRY_HEADER_LEN]; + + buf[0] = ( entry->trust.sslFlags >> 8 ) & 0xff; + buf[1] = entry->trust.sslFlags & 0xff; + buf[2] = ( entry->trust.emailFlags >> 8 ) & 0xff; + buf[3] = entry->trust.emailFlags & 0xff; + buf[4] = ( entry->trust.objectSigningFlags >> 8 ) & 0xff; + buf[5] = entry->trust.objectSigningFlags & 0xff; + buf[6] = ( entry->derCert.len >> 8 ) & 0xff; + buf[7] = entry->derCert.len & 0xff; + buf[8] = ( nnlen >> 8 ) & 0xff; + buf[9] = nnlen & 0xff; + + PORT_Memcpy(&buf[DB_CERT_ENTRY_HEADER_LEN], entry->derCert.data, + entry->derCert.len); + + PORT_Memcpy(&buf[DB_CERT_ENTRY_HEADER_LEN + entry->derCert.len], + nn, nnlen); + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * encode a database key for a cert record + */ +static SECStatus +EncodeDBCertKey(const SECItem *certKey, PRArenaPool *arena, SECItem *dbkey) +{ + unsigned int len = certKey->len + SEC_DB_KEY_HEADER_LEN; + if (arena) { + dbkey->data = (unsigned char *)PORT_ArenaAlloc(arena, len); + } else { + if (dbkey->len < len) { + dbkey->data = (unsigned char *)PORT_Alloc(len); + } + } + dbkey->len = len; + if ( dbkey->data == NULL ) { + goto loser; + } + PORT_Memcpy(&dbkey->data[SEC_DB_KEY_HEADER_LEN], + certKey->data, certKey->len); + dbkey->data[0] = certDBEntryTypeCert; + + return(SECSuccess); +loser: + return(SECFailure); +} + +static SECStatus +EncodeDBGenericKey(const SECItem *certKey, PRArenaPool *arena, SECItem *dbkey, + certDBEntryType entryType) +{ + /* + * we only allow _one_ KRL key! + */ + if (entryType == certDBEntryTypeKeyRevocation) { + dbkey->len = SEC_DB_KEY_HEADER_LEN; + dbkey->data = (unsigned char *)PORT_ArenaAlloc(arena, dbkey->len); + if ( dbkey->data == NULL ) { + goto loser; + } + dbkey->data[0] = (unsigned char) entryType; + return(SECSuccess); + } + + + dbkey->len = certKey->len + SEC_DB_KEY_HEADER_LEN; + dbkey->data = (unsigned char *)PORT_ArenaAlloc(arena, dbkey->len); + if ( dbkey->data == NULL ) { + goto loser; + } + PORT_Memcpy(&dbkey->data[SEC_DB_KEY_HEADER_LEN], + certKey->data, certKey->len); + dbkey->data[0] = (unsigned char) entryType; + + return(SECSuccess); +loser: + return(SECFailure); +} + +static SECStatus +DecodeDBCertEntry(certDBEntryCert *entry, SECItem *dbentry) +{ + unsigned int nnlen; + unsigned int headerlen; + int lenoff; + + /* allow updates of old versions of the database */ + switch ( entry->common.version ) { + case 5: + headerlen = DB_CERT_V5_ENTRY_HEADER_LEN; + lenoff = 3; + break; + case 6: + /* should not get here */ + PORT_Assert(0); + headerlen = DB_CERT_V6_ENTRY_HEADER_LEN; + lenoff = 3; + break; + case 7: + case 8: + headerlen = DB_CERT_ENTRY_HEADER_LEN; + lenoff = 6; + break; + default: + /* better not get here */ + PORT_Assert(0); + headerlen = DB_CERT_V5_ENTRY_HEADER_LEN; + lenoff = 3; + break; + } + + /* is record long enough for header? */ + if ( dbentry->len < headerlen ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + /* is database entry correct length? */ + entry->derCert.len = ( ( dbentry->data[lenoff] << 8 ) | + dbentry->data[lenoff+1] ); + nnlen = ( ( dbentry->data[lenoff+2] << 8 ) | dbentry->data[lenoff+3] ); + if ( ( entry->derCert.len + nnlen + headerlen ) + != dbentry->len) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + /* copy the dercert */ + + entry->derCert.data = pkcs11_copyStaticData(&dbentry->data[headerlen], + entry->derCert.len,entry->derCertSpace,sizeof(entry->derCertSpace)); + if ( entry->derCert.data == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + /* copy the nickname */ + if ( nnlen > 1 ) { + entry->nickname = (char *)pkcs11_copyStaticData( + &dbentry->data[headerlen+entry->derCert.len], nnlen, + (unsigned char *)entry->nicknameSpace, + sizeof(entry->nicknameSpace)); + if ( entry->nickname == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + } else { + entry->nickname = NULL; + } + + if ( entry->common.version < 7 ) { + /* allow updates of v5 db */ + entry->trust.sslFlags = dbentry->data[0]; + entry->trust.emailFlags = dbentry->data[1]; + entry->trust.objectSigningFlags = dbentry->data[2]; + } else { + entry->trust.sslFlags = ( dbentry->data[0] << 8 ) | dbentry->data[1]; + entry->trust.emailFlags = ( dbentry->data[2] << 8 ) | dbentry->data[3]; + entry->trust.objectSigningFlags = + ( dbentry->data[4] << 8 ) | dbentry->data[5]; + } + + return(SECSuccess); +loser: + return(SECFailure); +} + + +/* + * Create a new certDBEntryCert from existing data + */ +static certDBEntryCert * +NewDBCertEntry(SECItem *derCert, char *nickname, + NSSLOWCERTCertTrust *trust, int flags) +{ + certDBEntryCert *entry; + PRArenaPool *arena = NULL; + int nnlen; + + arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE ); + + if ( !arena ) { + goto loser; + } + + entry = PORT_ArenaZNew(arena, certDBEntryCert); + if ( entry == NULL ) { + goto loser; + } + + /* fill in the dbCert */ + entry->common.arena = arena; + entry->common.type = certDBEntryTypeCert; + entry->common.version = CERT_DB_FILE_VERSION; + entry->common.flags = flags; + + if ( trust ) { + entry->trust = *trust; + } + + entry->derCert.data = (unsigned char *)PORT_ArenaAlloc(arena, derCert->len); + if ( !entry->derCert.data ) { + goto loser; + } + entry->derCert.len = derCert->len; + PORT_Memcpy(entry->derCert.data, derCert->data, derCert->len); + + nnlen = ( nickname ? strlen(nickname) + 1 : 0 ); + + if ( nnlen ) { + entry->nickname = (char *)PORT_ArenaAlloc(arena, nnlen); + if ( !entry->nickname ) { + goto loser; + } + PORT_Memcpy(entry->nickname, nickname, nnlen); + + } else { + entry->nickname = 0; + } + + return(entry); + +loser: + + /* allocation error, free arena and return */ + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + PORT_SetError(SEC_ERROR_NO_MEMORY); + return(0); +} + +/* + * Decode a version 4 DBCert from the byte stream database format + * and construct a current database entry struct + */ +static certDBEntryCert * +DecodeV4DBCertEntry(unsigned char *buf, int len) +{ + certDBEntryCert *entry; + int certlen; + int nnlen; + PRArenaPool *arena; + + /* make sure length is at least long enough for the header */ + if ( len < DBCERT_V4_HEADER_LEN ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + return(0); + } + + /* get other lengths */ + certlen = buf[3] << 8 | buf[4]; + nnlen = buf[5] << 8 | buf[6]; + + /* make sure DB entry is the right size */ + if ( ( certlen + nnlen + DBCERT_V4_HEADER_LEN ) != len ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + return(0); + } + + /* allocate arena */ + arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE ); + + if ( !arena ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + return(0); + } + + /* allocate structure and members */ + entry = (certDBEntryCert *) PORT_ArenaAlloc(arena, sizeof(certDBEntryCert)); + + if ( !entry ) { + goto loser; + } + + entry->common.arena = arena; + entry->common.version = CERT_DB_FILE_VERSION; + entry->common.type = certDBEntryTypeCert; + entry->common.flags = 0; + entry->trust.sslFlags = buf[0]; + entry->trust.emailFlags = buf[1]; + entry->trust.objectSigningFlags = buf[2]; + + entry->derCert.data = (unsigned char *)PORT_ArenaAlloc(arena, certlen); + if ( !entry->derCert.data ) { + goto loser; + } + entry->derCert.len = certlen; + PORT_Memcpy(entry->derCert.data, &buf[DBCERT_V4_HEADER_LEN], certlen); + + if ( nnlen ) { + entry->nickname = (char *) PORT_ArenaAlloc(arena, nnlen); + if ( !entry->nickname ) { + goto loser; + } + PORT_Memcpy(entry->nickname, &buf[DBCERT_V4_HEADER_LEN + certlen], nnlen); + + if (PORT_Strcmp(entry->nickname, "Server-Cert") == 0) { + entry->trust.sslFlags |= CERTDB_USER; + } + } else { + entry->nickname = 0; + } + + return(entry); + +loser: + PORT_FreeArena(arena, PR_FALSE); + PORT_SetError(SEC_ERROR_NO_MEMORY); + return(0); +} + +/* + * Encode a Certificate database entry into byte stream suitable for + * the database + */ +static SECStatus +WriteDBCertEntry(NSSLOWCERTCertDBHandle *handle, certDBEntryCert *entry) +{ + SECItem dbitem, dbkey; + PRArenaPool *tmparena = NULL; + SECItem tmpitem; + SECStatus rv; + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + goto loser; + } + + rv = EncodeDBCertEntry(entry, tmparena, &dbitem); + if ( rv != SECSuccess ) { + goto loser; + } + + /* get the database key and format it */ + rv = nsslowcert_KeyFromDERCert(tmparena, &entry->derCert, &tmpitem); + if ( rv == SECFailure ) { + goto loser; + } + + rv = EncodeDBCertKey(&tmpitem, tmparena, &dbkey); + if ( rv == SECFailure ) { + goto loser; + } + + /* now write it to the database */ + rv = WriteDBEntry(handle, &entry->common, &dbkey, &dbitem); + if ( rv != SECSuccess ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(SECSuccess); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + return(SECFailure); +} + + +/* + * delete a certificate entry + */ +static SECStatus +DeleteDBCertEntry(NSSLOWCERTCertDBHandle *handle, SECItem *certKey) +{ + SECItem dbkey; + SECStatus rv; + + dbkey.data= NULL; + dbkey.len = 0; + + rv = EncodeDBCertKey(certKey, NULL, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = DeleteDBEntry(handle, certDBEntryTypeCert, &dbkey); + if ( rv == SECFailure ) { + goto loser; + } + + if (dbkey.data) { + PORT_Free(dbkey.data); + } + return(SECSuccess); + +loser: + if (dbkey.data) { + PORT_Free(dbkey.data); + } + return(SECFailure); +} + +static certDBEntryCert * +CreateCertEntry(void) +{ + certDBEntryCert *entry; + + nsslowcert_LockFreeList(); + entry = entryListHead; + if (entry) { + entryListCount--; + entryListHead = entry->next; + } + PORT_Assert(entryListCount >= 0); + nsslowcert_UnlockFreeList(); + if (entry) { + return entry; + } + + return PORT_ZNew(certDBEntryCert); +} + +static void +DestroyCertEntryFreeList(void) +{ + certDBEntryCert *entry; + + nsslowcert_LockFreeList(); + while (NULL != (entry = entryListHead)) { + entryListCount--; + entryListHead = entry->next; + PORT_Free(entry); + } + PORT_Assert(!entryListCount); + entryListCount = 0; + nsslowcert_UnlockFreeList(); +} + +/* + * Read a certificate entry + */ +static certDBEntryCert * +ReadDBCertEntry(NSSLOWCERTCertDBHandle *handle, const SECItem *certKey) +{ + certDBEntryCert *entry; + SECItem dbkey; + SECItem dbentry; + SECStatus rv; + unsigned char buf[512]; + + dbkey.data = buf; + dbkey.len = sizeof(buf); + + entry = CreateCertEntry(); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + entry->common.arena = NULL; + entry->common.type = certDBEntryTypeCert; + + rv = EncodeDBCertKey(certKey, NULL, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = ReadDBEntry(handle, &entry->common, &dbkey, &dbentry, NULL); + if ( rv == SECFailure ) { + goto loser; + } + + rv = DecodeDBCertEntry(entry, &dbentry); + if ( rv != SECSuccess ) { + goto loser; + } + + pkcs11_freeStaticData(dbkey.data,buf); + dbkey.data = NULL; + return(entry); + +loser: + pkcs11_freeStaticData(dbkey.data,buf); + dbkey.data = NULL; + if ( entry ) { + DestroyDBEntry((certDBEntry *)entry); + } + + return(NULL); +} + +/* + * encode a database cert record + */ +static SECStatus +EncodeDBCrlEntry(certDBEntryRevocation *entry, PRArenaPool *arena, SECItem *dbitem) +{ + unsigned int nnlen = 0; + unsigned char *buf; + + if (entry->url) { + nnlen = PORT_Strlen(entry->url) + 1; + } + + /* allocate space for encoded database record, including space + * for low level header + */ + dbitem->len = entry->derCrl.len + nnlen + + SEC_DB_ENTRY_HEADER_LEN + DB_CRL_ENTRY_HEADER_LEN; + + dbitem->data = (unsigned char *)PORT_ArenaAlloc(arena, dbitem->len); + if ( dbitem->data == NULL) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + /* fill in database record */ + buf = &dbitem->data[SEC_DB_ENTRY_HEADER_LEN]; + + buf[0] = ( entry->derCrl.len >> 8 ) & 0xff; + buf[1] = entry->derCrl.len & 0xff; + buf[2] = ( nnlen >> 8 ) & 0xff; + buf[3] = nnlen & 0xff; + + PORT_Memcpy(&buf[DB_CRL_ENTRY_HEADER_LEN], entry->derCrl.data, + entry->derCrl.len); + + if (nnlen != 0) { + PORT_Memcpy(&buf[DB_CRL_ENTRY_HEADER_LEN + entry->derCrl.len], + entry->url, nnlen); + } + + return(SECSuccess); + +loser: + return(SECFailure); +} + +static SECStatus +DecodeDBCrlEntry(certDBEntryRevocation *entry, SECItem *dbentry) +{ + unsigned int nnlen; + + /* is record long enough for header? */ + if ( dbentry->len < DB_CRL_ENTRY_HEADER_LEN ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + /* is database entry correct length? */ + entry->derCrl.len = ( ( dbentry->data[0] << 8 ) | dbentry->data[1] ); + nnlen = ( ( dbentry->data[2] << 8 ) | dbentry->data[3] ); + if ( ( entry->derCrl.len + nnlen + DB_CRL_ENTRY_HEADER_LEN ) + != dbentry->len) { + /* CRL entry is greater than 64 K. Hack to make this continue to work */ + if (dbentry->len >= (0xffff - DB_CRL_ENTRY_HEADER_LEN) - nnlen) { + entry->derCrl.len = + (dbentry->len - DB_CRL_ENTRY_HEADER_LEN) - nnlen; + } else { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + } + + /* copy the dercert */ + entry->derCrl.data = (unsigned char *)PORT_ArenaAlloc(entry->common.arena, + entry->derCrl.len); + if ( entry->derCrl.data == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->derCrl.data, &dbentry->data[DB_CRL_ENTRY_HEADER_LEN], + entry->derCrl.len); + + /* copy the url */ + entry->url = NULL; + if (nnlen != 0) { + entry->url = (char *)PORT_ArenaAlloc(entry->common.arena, nnlen); + if ( entry->url == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->url, + &dbentry->data[DB_CRL_ENTRY_HEADER_LEN + entry->derCrl.len], + nnlen); + } + + return(SECSuccess); +loser: + return(SECFailure); +} + +/* + * Create a new certDBEntryRevocation from existing data + */ +static certDBEntryRevocation * +NewDBCrlEntry(SECItem *derCrl, char * url, certDBEntryType crlType, int flags) +{ + certDBEntryRevocation *entry; + PRArenaPool *arena = NULL; + int nnlen; + + arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE ); + + if ( !arena ) { + goto loser; + } + + entry = PORT_ArenaZNew(arena, certDBEntryRevocation); + if ( entry == NULL ) { + goto loser; + } + + /* fill in the dbRevolcation */ + entry->common.arena = arena; + entry->common.type = crlType; + entry->common.version = CERT_DB_FILE_VERSION; + entry->common.flags = flags; + + + entry->derCrl.data = (unsigned char *)PORT_ArenaAlloc(arena, derCrl->len); + if ( !entry->derCrl.data ) { + goto loser; + } + + if (url) { + nnlen = PORT_Strlen(url) + 1; + entry->url = (char *)PORT_ArenaAlloc(arena, nnlen); + if ( !entry->url ) { + goto loser; + } + PORT_Memcpy(entry->url, url, nnlen); + } else { + entry->url = NULL; + } + + + entry->derCrl.len = derCrl->len; + PORT_Memcpy(entry->derCrl.data, derCrl->data, derCrl->len); + + return(entry); + +loser: + + /* allocation error, free arena and return */ + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + PORT_SetError(SEC_ERROR_NO_MEMORY); + return(0); +} + + +static SECStatus +WriteDBCrlEntry(NSSLOWCERTCertDBHandle *handle, certDBEntryRevocation *entry, + SECItem *crlKey ) +{ + SECItem dbkey; + PRArenaPool *tmparena = NULL; + SECItem encodedEntry; + SECStatus rv; + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + goto loser; + } + + rv = EncodeDBCrlEntry(entry, tmparena, &encodedEntry); + if ( rv == SECFailure ) { + goto loser; + } + + rv = EncodeDBGenericKey(crlKey, tmparena, &dbkey, entry->common.type); + if ( rv == SECFailure ) { + goto loser; + } + + /* now write it to the database */ + rv = WriteDBEntry(handle, &entry->common, &dbkey, &encodedEntry); + if ( rv != SECSuccess ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(SECSuccess); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + return(SECFailure); +} +/* + * delete a crl entry + */ +static SECStatus +DeleteDBCrlEntry(NSSLOWCERTCertDBHandle *handle, const SECItem *crlKey, + certDBEntryType crlType) +{ + SECItem dbkey; + PRArenaPool *arena = NULL; + SECStatus rv; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + goto loser; + } + + rv = EncodeDBGenericKey(crlKey, arena, &dbkey, crlType); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = DeleteDBEntry(handle, crlType, &dbkey); + if ( rv == SECFailure ) { + goto loser; + } + + PORT_FreeArena(arena, PR_FALSE); + return(SECSuccess); + +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(SECFailure); +} + +/* + * Read a certificate entry + */ +static certDBEntryRevocation * +ReadDBCrlEntry(NSSLOWCERTCertDBHandle *handle, SECItem *certKey, + certDBEntryType crlType) +{ + PRArenaPool *arena = NULL; + PRArenaPool *tmparena = NULL; + certDBEntryRevocation *entry; + SECItem dbkey; + SECItem dbentry; + SECStatus rv; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + entry = (certDBEntryRevocation *) + PORT_ArenaAlloc(arena, sizeof(certDBEntryRevocation)); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + entry->common.arena = arena; + entry->common.type = crlType; + + rv = EncodeDBGenericKey(certKey, tmparena, &dbkey, crlType); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = ReadDBEntry(handle, &entry->common, &dbkey, &dbentry, NULL); + if ( rv == SECFailure ) { + goto loser; + } + + rv = DecodeDBCrlEntry(entry, &dbentry); + if ( rv != SECSuccess ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(entry); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(NULL); +} + +void +nsslowcert_DestroyDBEntry(certDBEntry *entry) +{ + DestroyDBEntry(entry); + return; +} + +/* + * Encode a database nickname record + */ +static SECStatus +EncodeDBNicknameEntry(certDBEntryNickname *entry, PRArenaPool *arena, + SECItem *dbitem) +{ + unsigned char *buf; + + /* allocate space for encoded database record, including space + * for low level header + */ + dbitem->len = entry->subjectName.len + DB_NICKNAME_ENTRY_HEADER_LEN + + SEC_DB_ENTRY_HEADER_LEN; + + dbitem->data = (unsigned char *)PORT_ArenaAlloc(arena, dbitem->len); + if ( dbitem->data == NULL) { + goto loser; + } + + /* fill in database record */ + buf = &dbitem->data[SEC_DB_ENTRY_HEADER_LEN]; + + buf[0] = ( entry->subjectName.len >> 8 ) & 0xff; + buf[1] = entry->subjectName.len & 0xff; + + PORT_Memcpy(&buf[DB_NICKNAME_ENTRY_HEADER_LEN], entry->subjectName.data, + entry->subjectName.len); + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * Encode a database key for a nickname record + */ +static SECStatus +EncodeDBNicknameKey(char *nickname, PRArenaPool *arena, + SECItem *dbkey) +{ + unsigned int nnlen; + + nnlen = PORT_Strlen(nickname) + 1; /* includes null */ + + /* now get the database key and format it */ + dbkey->len = nnlen + SEC_DB_KEY_HEADER_LEN; + dbkey->data = (unsigned char *)PORT_ArenaAlloc(arena, dbkey->len); + if ( dbkey->data == NULL ) { + goto loser; + } + PORT_Memcpy(&dbkey->data[SEC_DB_KEY_HEADER_LEN], nickname, nnlen); + dbkey->data[0] = certDBEntryTypeNickname; + + return(SECSuccess); + +loser: + return(SECFailure); +} + +static SECStatus +DecodeDBNicknameEntry(certDBEntryNickname *entry, SECItem *dbentry, + char *nickname) +{ + /* is record long enough for header? */ + if ( dbentry->len < DB_NICKNAME_ENTRY_HEADER_LEN ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + /* is database entry correct length? */ + entry->subjectName.len = ( ( dbentry->data[0] << 8 ) | dbentry->data[1] ); + if (( entry->subjectName.len + DB_NICKNAME_ENTRY_HEADER_LEN ) != + dbentry->len ){ + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + /* copy the certkey */ + entry->subjectName.data = + (unsigned char *)PORT_ArenaAlloc(entry->common.arena, + entry->subjectName.len); + if ( entry->subjectName.data == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->subjectName.data, + &dbentry->data[DB_NICKNAME_ENTRY_HEADER_LEN], + entry->subjectName.len); + entry->subjectName.type = siBuffer; + + entry->nickname = (char *)PORT_ArenaAlloc(entry->common.arena, + PORT_Strlen(nickname)+1); + if ( entry->nickname ) { + PORT_Strcpy(entry->nickname, nickname); + } + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * create a new nickname entry + */ +static certDBEntryNickname * +NewDBNicknameEntry(char *nickname, SECItem *subjectName, unsigned int flags) +{ + PRArenaPool *arena = NULL; + certDBEntryNickname *entry; + int nnlen; + SECStatus rv; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + entry = (certDBEntryNickname *)PORT_ArenaAlloc(arena, + sizeof(certDBEntryNickname)); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + /* init common fields */ + entry->common.arena = arena; + entry->common.type = certDBEntryTypeNickname; + entry->common.version = CERT_DB_FILE_VERSION; + entry->common.flags = flags; + + /* copy the nickname */ + nnlen = PORT_Strlen(nickname) + 1; + + entry->nickname = (char*)PORT_ArenaAlloc(arena, nnlen); + if ( entry->nickname == NULL ) { + goto loser; + } + + PORT_Memcpy(entry->nickname, nickname, nnlen); + + rv = SECITEM_CopyItem(arena, &entry->subjectName, subjectName); + if ( rv != SECSuccess ) { + goto loser; + } + + return(entry); +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(NULL); +} + +/* + * delete a nickname entry + */ +static SECStatus +DeleteDBNicknameEntry(NSSLOWCERTCertDBHandle *handle, char *nickname) +{ + PRArenaPool *arena = NULL; + SECStatus rv; + SECItem dbkey; + + if ( nickname == NULL ) { + return(SECSuccess); + } + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + goto loser; + } + + rv = EncodeDBNicknameKey(nickname, arena, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = DeleteDBEntry(handle, certDBEntryTypeNickname, &dbkey); + if ( rv == SECFailure ) { + goto loser; + } + + PORT_FreeArena(arena, PR_FALSE); + return(SECSuccess); + +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(SECFailure); +} + +/* + * Read a nickname entry + */ +static certDBEntryNickname * +ReadDBNicknameEntry(NSSLOWCERTCertDBHandle *handle, char *nickname) +{ + PRArenaPool *arena = NULL; + PRArenaPool *tmparena = NULL; + certDBEntryNickname *entry; + SECItem dbkey; + SECItem dbentry; + SECStatus rv; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + entry = (certDBEntryNickname *)PORT_ArenaAlloc(arena, + sizeof(certDBEntryNickname)); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + entry->common.arena = arena; + entry->common.type = certDBEntryTypeNickname; + + rv = EncodeDBNicknameKey(nickname, tmparena, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = ReadDBEntry(handle, &entry->common, &dbkey, &dbentry, tmparena); + if ( rv == SECFailure ) { + goto loser; + } + + /* is record long enough for header? */ + if ( dbentry.len < DB_NICKNAME_ENTRY_HEADER_LEN ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + rv = DecodeDBNicknameEntry(entry, &dbentry, nickname); + if ( rv != SECSuccess ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(entry); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(NULL); +} + +/* + * Encode a nickname entry into byte stream suitable for + * the database + */ +static SECStatus +WriteDBNicknameEntry(NSSLOWCERTCertDBHandle *handle, certDBEntryNickname *entry) +{ + SECItem dbitem, dbkey; + PRArenaPool *tmparena = NULL; + SECStatus rv; + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + goto loser; + } + + rv = EncodeDBNicknameEntry(entry, tmparena, &dbitem); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = EncodeDBNicknameKey(entry->nickname, tmparena, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + /* now write it to the database */ + rv = WriteDBEntry(handle, &entry->common, &dbkey, &dbitem); + if ( rv != SECSuccess ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(SECSuccess); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + return(SECFailure); + +} + +static SECStatus +EncodeDBSMimeEntry(certDBEntrySMime *entry, PRArenaPool *arena, + SECItem *dbitem) +{ + unsigned char *buf; + + /* allocate space for encoded database record, including space + * for low level header + */ + dbitem->len = entry->subjectName.len + entry->smimeOptions.len + + entry->optionsDate.len + + DB_SMIME_ENTRY_HEADER_LEN + SEC_DB_ENTRY_HEADER_LEN; + + dbitem->data = (unsigned char *)PORT_ArenaAlloc(arena, dbitem->len); + if ( dbitem->data == NULL) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + /* fill in database record */ + buf = &dbitem->data[SEC_DB_ENTRY_HEADER_LEN]; + + buf[0] = ( entry->subjectName.len >> 8 ) & 0xff; + buf[1] = entry->subjectName.len & 0xff; + buf[2] = ( entry->smimeOptions.len >> 8 ) & 0xff; + buf[3] = entry->smimeOptions.len & 0xff; + buf[4] = ( entry->optionsDate.len >> 8 ) & 0xff; + buf[5] = entry->optionsDate.len & 0xff; + + /* if no smime options, then there should not be an options date either */ + PORT_Assert( ! ( ( entry->smimeOptions.len == 0 ) && + ( entry->optionsDate.len != 0 ) ) ); + + PORT_Memcpy(&buf[DB_SMIME_ENTRY_HEADER_LEN], entry->subjectName.data, + entry->subjectName.len); + if ( entry->smimeOptions.len ) { + PORT_Memcpy(&buf[DB_SMIME_ENTRY_HEADER_LEN+entry->subjectName.len], + entry->smimeOptions.data, + entry->smimeOptions.len); + PORT_Memcpy(&buf[DB_SMIME_ENTRY_HEADER_LEN + entry->subjectName.len + + entry->smimeOptions.len], + entry->optionsDate.data, + entry->optionsDate.len); + } + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * Encode a database key for a SMIME record + */ +static SECStatus +EncodeDBSMimeKey(char *emailAddr, PRArenaPool *arena, + SECItem *dbkey) +{ + unsigned int addrlen; + + addrlen = PORT_Strlen(emailAddr) + 1; /* includes null */ + + /* now get the database key and format it */ + dbkey->len = addrlen + SEC_DB_KEY_HEADER_LEN; + dbkey->data = (unsigned char *)PORT_ArenaAlloc(arena, dbkey->len); + if ( dbkey->data == NULL ) { + goto loser; + } + PORT_Memcpy(&dbkey->data[SEC_DB_KEY_HEADER_LEN], emailAddr, addrlen); + dbkey->data[0] = certDBEntryTypeSMimeProfile; + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * Decode a database SMIME record + */ +static SECStatus +DecodeDBSMimeEntry(certDBEntrySMime *entry, SECItem *dbentry, char *emailAddr) +{ + /* is record long enough for header? */ + if ( dbentry->len < DB_SMIME_ENTRY_HEADER_LEN ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + /* is database entry correct length? */ + entry->subjectName.len = ( ( dbentry->data[0] << 8 ) | dbentry->data[1] ); + entry->smimeOptions.len = ( ( dbentry->data[2] << 8 ) | dbentry->data[3] ); + entry->optionsDate.len = ( ( dbentry->data[4] << 8 ) | dbentry->data[5] ); + if (( entry->subjectName.len + entry->smimeOptions.len + + entry->optionsDate.len + DB_SMIME_ENTRY_HEADER_LEN ) != dbentry->len){ + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + /* copy the subject name */ + entry->subjectName.data = + (unsigned char *)PORT_ArenaAlloc(entry->common.arena, + entry->subjectName.len); + if ( entry->subjectName.data == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->subjectName.data, + &dbentry->data[DB_SMIME_ENTRY_HEADER_LEN], + entry->subjectName.len); + + /* copy the smime options */ + if ( entry->smimeOptions.len ) { + entry->smimeOptions.data = + (unsigned char *)PORT_ArenaAlloc(entry->common.arena, + entry->smimeOptions.len); + if ( entry->smimeOptions.data == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->smimeOptions.data, + &dbentry->data[DB_SMIME_ENTRY_HEADER_LEN + + entry->subjectName.len], + entry->smimeOptions.len); + } + if ( entry->optionsDate.len ) { + entry->optionsDate.data = + (unsigned char *)PORT_ArenaAlloc(entry->common.arena, + entry->optionsDate.len); + if ( entry->optionsDate.data == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->optionsDate.data, + &dbentry->data[DB_SMIME_ENTRY_HEADER_LEN + + entry->subjectName.len + + entry->smimeOptions.len], + entry->optionsDate.len); + } + + /* both options and options date must either exist or not exist */ + if ( ( ( entry->optionsDate.len == 0 ) || + ( entry->smimeOptions.len == 0 ) ) && + entry->smimeOptions.len != entry->optionsDate.len ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + entry->emailAddr = (char *)PORT_ArenaAlloc(entry->common.arena, + PORT_Strlen(emailAddr)+1); + if ( entry->emailAddr ) { + PORT_Strcpy(entry->emailAddr, emailAddr); + } + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * create a new SMIME entry + */ +static certDBEntrySMime * +NewDBSMimeEntry(char *emailAddr, SECItem *subjectName, SECItem *smimeOptions, + SECItem *optionsDate, unsigned int flags) +{ + PRArenaPool *arena = NULL; + certDBEntrySMime *entry; + int addrlen; + SECStatus rv; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + entry = (certDBEntrySMime *)PORT_ArenaAlloc(arena, + sizeof(certDBEntrySMime)); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + /* init common fields */ + entry->common.arena = arena; + entry->common.type = certDBEntryTypeSMimeProfile; + entry->common.version = CERT_DB_FILE_VERSION; + entry->common.flags = flags; + + /* copy the email addr */ + addrlen = PORT_Strlen(emailAddr) + 1; + + entry->emailAddr = (char*)PORT_ArenaAlloc(arena, addrlen); + if ( entry->emailAddr == NULL ) { + goto loser; + } + + PORT_Memcpy(entry->emailAddr, emailAddr, addrlen); + + /* copy the subject name */ + rv = SECITEM_CopyItem(arena, &entry->subjectName, subjectName); + if ( rv != SECSuccess ) { + goto loser; + } + + /* copy the smime options */ + if ( smimeOptions ) { + rv = SECITEM_CopyItem(arena, &entry->smimeOptions, smimeOptions); + if ( rv != SECSuccess ) { + goto loser; + } + } else { + PORT_Assert(optionsDate == NULL); + entry->smimeOptions.data = NULL; + entry->smimeOptions.len = 0; + } + + /* copy the options date */ + if ( optionsDate ) { + rv = SECITEM_CopyItem(arena, &entry->optionsDate, optionsDate); + if ( rv != SECSuccess ) { + goto loser; + } + } else { + PORT_Assert(smimeOptions == NULL); + entry->optionsDate.data = NULL; + entry->optionsDate.len = 0; + } + + return(entry); +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(NULL); +} + +/* + * delete a SMIME entry + */ +static SECStatus +DeleteDBSMimeEntry(NSSLOWCERTCertDBHandle *handle, char *emailAddr) +{ + PRArenaPool *arena = NULL; + SECStatus rv; + SECItem dbkey; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + goto loser; + } + + rv = EncodeDBSMimeKey(emailAddr, arena, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = DeleteDBEntry(handle, certDBEntryTypeSMimeProfile, &dbkey); + if ( rv == SECFailure ) { + goto loser; + } + + PORT_FreeArena(arena, PR_FALSE); + return(SECSuccess); + +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(SECFailure); +} + +/* + * Read a SMIME entry + */ +certDBEntrySMime * +nsslowcert_ReadDBSMimeEntry(NSSLOWCERTCertDBHandle *handle, char *emailAddr) +{ + PRArenaPool *arena = NULL; + PRArenaPool *tmparena = NULL; + certDBEntrySMime *entry; + SECItem dbkey; + SECItem dbentry; + SECStatus rv; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + entry = (certDBEntrySMime *)PORT_ArenaAlloc(arena, + sizeof(certDBEntrySMime)); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + entry->common.arena = arena; + entry->common.type = certDBEntryTypeSMimeProfile; + + rv = EncodeDBSMimeKey(emailAddr, tmparena, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = ReadDBEntry(handle, &entry->common, &dbkey, &dbentry, tmparena); + if ( rv == SECFailure ) { + goto loser; + } + + /* is record long enough for header? */ + if ( dbentry.len < DB_SMIME_ENTRY_HEADER_LEN ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + rv = DecodeDBSMimeEntry(entry, &dbentry, emailAddr); + if ( rv != SECSuccess ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(entry); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(NULL); +} + +/* + * Encode a SMIME entry into byte stream suitable for + * the database + */ +static SECStatus +WriteDBSMimeEntry(NSSLOWCERTCertDBHandle *handle, certDBEntrySMime *entry) +{ + SECItem dbitem, dbkey; + PRArenaPool *tmparena = NULL; + SECStatus rv; + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + goto loser; + } + + rv = EncodeDBSMimeEntry(entry, tmparena, &dbitem); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = EncodeDBSMimeKey(entry->emailAddr, tmparena, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + /* now write it to the database */ + rv = WriteDBEntry(handle, &entry->common, &dbkey, &dbitem); + if ( rv != SECSuccess ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(SECSuccess); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + return(SECFailure); + +} + +/* + * Encode a database subject record + */ +static SECStatus +EncodeDBSubjectEntry(certDBEntrySubject *entry, PRArenaPool *arena, + SECItem *dbitem) +{ + unsigned char *buf; + int len; + unsigned int ncerts; + unsigned int i; + unsigned char *tmpbuf; + unsigned int nnlen = 0; + unsigned int eaddrslen = 0; + int keyidoff; + SECItem *certKeys; + SECItem *keyIDs; + + if ( entry->nickname ) { + nnlen = PORT_Strlen(entry->nickname) + 1; + } + if ( entry->emailAddrs ) { + eaddrslen = 2; + for (i=0; i < entry->nemailAddrs; i++) { + eaddrslen += PORT_Strlen(entry->emailAddrs[i]) + 1 + 2; + } + } + + ncerts = entry->ncerts; + + /* compute the length of the entry */ + keyidoff = DB_SUBJECT_ENTRY_HEADER_LEN + nnlen ; + len = keyidoff + 4 * ncerts + eaddrslen; + for ( i = 0; i < ncerts; i++ ) { + len += entry->certKeys[i].len; + len += entry->keyIDs[i].len; + } + + /* allocate space for encoded database record, including space + * for low level header + */ + dbitem->len = len + SEC_DB_ENTRY_HEADER_LEN; + + dbitem->data = (unsigned char *)PORT_ArenaAlloc(arena, dbitem->len); + if ( dbitem->data == NULL) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + /* fill in database record */ + buf = &dbitem->data[SEC_DB_ENTRY_HEADER_LEN]; + + buf[0] = ( ncerts >> 8 ) & 0xff; + buf[1] = ncerts & 0xff; + buf[2] = ( nnlen >> 8 ) & 0xff; + buf[3] = nnlen & 0xff; + /* v7 email field is NULL in v8 */ + buf[4] = 0; + buf[5] = 0; + + PORT_Memcpy(&buf[DB_SUBJECT_ENTRY_HEADER_LEN], entry->nickname, nnlen); + + for ( i = 0; i < ncerts; i++ ) { + + certKeys = entry->certKeys; + keyIDs = entry->keyIDs; + + buf[keyidoff+i*2] = ( certKeys[i].len >> 8 ) & 0xff; + buf[keyidoff+1+i*2] = certKeys[i].len & 0xff; + buf[keyidoff+ncerts*2+i*2] = ( keyIDs[i].len >> 8 ) & 0xff; + buf[keyidoff+1+ncerts*2+i*2] = keyIDs[i].len & 0xff; + } + + /* temp pointer used to stuff certkeys and keyids into the buffer */ + tmpbuf = &buf[keyidoff+ncerts*4]; + + for ( i = 0; i < ncerts; i++ ) { + certKeys = entry->certKeys; + PORT_Memcpy(tmpbuf, certKeys[i].data, certKeys[i].len); + tmpbuf = tmpbuf + certKeys[i].len; + } + + for ( i = 0; i < ncerts; i++ ) { + keyIDs = entry->keyIDs; + PORT_Memcpy(tmpbuf, keyIDs[i].data, keyIDs[i].len); + tmpbuf = tmpbuf + keyIDs[i].len; + } + + if (entry->emailAddrs) { + tmpbuf[0] = (entry->nemailAddrs >> 8) & 0xff; + tmpbuf[1] = entry->nemailAddrs & 0xff; + tmpbuf += 2; + for (i=0; i < entry->nemailAddrs; i++) { + int nameLen = PORT_Strlen(entry->emailAddrs[i]) + 1; + tmpbuf[0] = (nameLen >> 8) & 0xff; + tmpbuf[1] = nameLen & 0xff; + tmpbuf += 2; + PORT_Memcpy(tmpbuf,entry->emailAddrs[i],nameLen); + tmpbuf +=nameLen; + } + } + + PORT_Assert(tmpbuf == &buf[len]); + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * Encode a database key for a subject record + */ +static SECStatus +EncodeDBSubjectKey(SECItem *derSubject, PRArenaPool *arena, + SECItem *dbkey) +{ + dbkey->len = derSubject->len + SEC_DB_KEY_HEADER_LEN; + dbkey->data = (unsigned char *)PORT_ArenaAlloc(arena, dbkey->len); + if ( dbkey->data == NULL ) { + goto loser; + } + PORT_Memcpy(&dbkey->data[SEC_DB_KEY_HEADER_LEN], derSubject->data, + derSubject->len); + dbkey->data[0] = certDBEntryTypeSubject; + + return(SECSuccess); + +loser: + return(SECFailure); +} + +static SECStatus +DecodeDBSubjectEntry(certDBEntrySubject *entry, SECItem *dbentry, + const SECItem *derSubject) +{ + unsigned int ncerts; + PRArenaPool *arena; + unsigned int len, itemlen; + unsigned char *tmpbuf; + unsigned char *end; + unsigned int i; + SECStatus rv; + unsigned int keyidoff; + unsigned int nnlen, eaddrlen; + unsigned int stdlen; + + arena = entry->common.arena; + + rv = SECITEM_CopyItem(arena, &entry->derSubject, derSubject); + if ( rv != SECSuccess ) { + goto loser; + } + + /* is record long enough for header? */ + if ( dbentry->len < DB_SUBJECT_ENTRY_HEADER_LEN ) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + entry->ncerts = ncerts = ( ( dbentry->data[0] << 8 ) | dbentry->data[1] ); + nnlen = ( ( dbentry->data[2] << 8 ) | dbentry->data[3] ); + eaddrlen = ( ( dbentry->data[4] << 8 ) | dbentry->data[5] ); + stdlen = ncerts * 4 + DB_SUBJECT_ENTRY_HEADER_LEN + nnlen + eaddrlen; + if ( dbentry->len < stdlen) { + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + entry->certKeys = (SECItem *)PORT_ArenaAlloc(arena, + sizeof(SECItem) * ncerts); + entry->keyIDs = (SECItem *)PORT_ArenaAlloc(arena, + sizeof(SECItem) * ncerts); + + if ( ( entry->certKeys == NULL ) || ( entry->keyIDs == NULL ) ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + if ( nnlen > 1 ) { /* null terminator is stored */ + entry->nickname = (char *)PORT_ArenaAlloc(arena, nnlen); + if ( entry->nickname == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->nickname, + &dbentry->data[DB_SUBJECT_ENTRY_HEADER_LEN], + nnlen); + } else { + entry->nickname = NULL; + } + + /* if we have an old style email entry, there is only one */ + entry->nemailAddrs = 0; + if ( eaddrlen > 1 ) { /* null terminator is stored */ + entry->emailAddrs = (char **)PORT_ArenaAlloc(arena, sizeof(char *)); + if ( entry->emailAddrs == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + entry->emailAddrs[0] = (char *)PORT_ArenaAlloc(arena, eaddrlen); + if ( entry->emailAddrs[0] == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->emailAddrs[0], + &dbentry->data[DB_SUBJECT_ENTRY_HEADER_LEN+nnlen], + eaddrlen); + entry->nemailAddrs = 1; + } else { + entry->emailAddrs = NULL; + } + + /* collect the lengths of the certKeys and keyIDs, and total the + * overall length. + */ + keyidoff = DB_SUBJECT_ENTRY_HEADER_LEN + nnlen + eaddrlen; + len = keyidoff + 4 * ncerts; + + tmpbuf = &dbentry->data[0]; + + for ( i = 0; i < ncerts; i++ ) { + + itemlen = ( tmpbuf[keyidoff + 2*i] << 8 ) | tmpbuf[keyidoff + 1 + 2*i] ; + len += itemlen; + entry->certKeys[i].len = itemlen; + + itemlen = ( tmpbuf[keyidoff + 2*ncerts + 2*i] << 8 ) | + tmpbuf[keyidoff + 1 + 2*ncerts + 2*i] ; + len += itemlen; + entry->keyIDs[i].len = itemlen; + } + + /* is database entry correct length? */ + if ( len > dbentry->len ){ + PORT_SetError(SEC_ERROR_BAD_DATABASE); + goto loser; + } + + tmpbuf = &tmpbuf[keyidoff + 4*ncerts]; + for ( i = 0; i < ncerts; i++ ) { + entry->certKeys[i].data = + (unsigned char *)PORT_ArenaAlloc(arena, entry->certKeys[i].len); + if ( entry->certKeys[i].data == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->certKeys[i].data, tmpbuf, entry->certKeys[i].len); + tmpbuf = &tmpbuf[entry->certKeys[i].len]; + } + + for ( i = 0; i < ncerts; i++ ) { + entry->keyIDs[i].data = + (unsigned char *)PORT_ArenaAlloc(arena, entry->keyIDs[i].len); + if ( entry->keyIDs[i].data == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + PORT_Memcpy(entry->keyIDs[i].data, tmpbuf, entry->keyIDs[i].len); + tmpbuf = &tmpbuf[entry->keyIDs[i].len]; + } + + end = &dbentry->data[dbentry->len]; + if ((eaddrlen == 0) && (tmpbuf+1 < end)) { + /* read in the additional email addresses */ + entry->nemailAddrs = tmpbuf[0] << 8 | tmpbuf[1]; + tmpbuf += 2; + entry->emailAddrs = (char **) + PORT_ArenaAlloc(arena, entry->nemailAddrs * sizeof(char *)); + if (entry->emailAddrs == NULL) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + for (i=0; i < entry->nemailAddrs; i++) { + int nameLen; + if (tmpbuf + 2 > end) { + goto loser; + } + + nameLen = tmpbuf[0] << 8 | tmpbuf[1]; + entry->emailAddrs[i] = PORT_ArenaAlloc(arena,nameLen); + if (entry->emailAddrs == NULL) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + if (tmpbuf + (nameLen+2) > end) { + goto loser; + } + PORT_Memcpy(entry->emailAddrs[i],&tmpbuf[2],nameLen); + tmpbuf += 2 + nameLen; + } + } + + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * create a new subject entry with a single cert + */ +static certDBEntrySubject * +NewDBSubjectEntry(SECItem *derSubject, SECItem *certKey, + SECItem *keyID, char *nickname, char *emailAddr, + unsigned int flags) +{ + PRArenaPool *arena = NULL; + certDBEntrySubject *entry; + SECStatus rv; + unsigned int nnlen; + unsigned int eaddrlen; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + entry = (certDBEntrySubject *)PORT_ArenaAlloc(arena, + sizeof(certDBEntrySubject)); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + /* init common fields */ + entry->common.arena = arena; + entry->common.type = certDBEntryTypeSubject; + entry->common.version = CERT_DB_FILE_VERSION; + entry->common.flags = flags; + + /* copy the subject */ + rv = SECITEM_CopyItem(arena, &entry->derSubject, derSubject); + if ( rv != SECSuccess ) { + goto loser; + } + + entry->ncerts = 1; + entry->nemailAddrs = 0; + /* copy nickname */ + if ( nickname && ( *nickname != '\0' ) ) { + nnlen = PORT_Strlen(nickname) + 1; + entry->nickname = (char *)PORT_ArenaAlloc(arena, nnlen); + if ( entry->nickname == NULL ) { + goto loser; + } + + PORT_Memcpy(entry->nickname, nickname, nnlen); + } else { + entry->nickname = NULL; + } + + /* copy email addr */ + if ( emailAddr && ( *emailAddr != '\0' ) ) { + emailAddr = nsslowcert_FixupEmailAddr(emailAddr); + if ( emailAddr == NULL ) { + entry->emailAddrs = NULL; + goto loser; + } + + eaddrlen = PORT_Strlen(emailAddr) + 1; + entry->emailAddrs = (char **)PORT_ArenaAlloc(arena, sizeof(char *)); + if ( entry->emailAddrs == NULL ) { + PORT_Free(emailAddr); + goto loser; + } + entry->emailAddrs[0] = PORT_ArenaStrdup(arena,emailAddr); + if (entry->emailAddrs[0]) { + entry->nemailAddrs = 1; + } + + PORT_Free(emailAddr); + } else { + entry->emailAddrs = NULL; + } + + /* allocate space for certKeys and keyIDs */ + entry->certKeys = (SECItem *)PORT_ArenaAlloc(arena, sizeof(SECItem)); + entry->keyIDs = (SECItem *)PORT_ArenaAlloc(arena, sizeof(SECItem)); + if ( ( entry->certKeys == NULL ) || ( entry->keyIDs == NULL ) ) { + goto loser; + } + + /* copy the certKey and keyID */ + rv = SECITEM_CopyItem(arena, &entry->certKeys[0], certKey); + if ( rv != SECSuccess ) { + goto loser; + } + rv = SECITEM_CopyItem(arena, &entry->keyIDs[0], keyID); + if ( rv != SECSuccess ) { + goto loser; + } + + return(entry); +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(NULL); +} + +/* + * delete a subject entry + */ +static SECStatus +DeleteDBSubjectEntry(NSSLOWCERTCertDBHandle *handle, SECItem *derSubject) +{ + SECItem dbkey; + PRArenaPool *arena = NULL; + SECStatus rv; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + goto loser; + } + + rv = EncodeDBSubjectKey(derSubject, arena, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = DeleteDBEntry(handle, certDBEntryTypeSubject, &dbkey); + if ( rv == SECFailure ) { + goto loser; + } + + PORT_FreeArena(arena, PR_FALSE); + return(SECSuccess); + +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(SECFailure); +} + +/* + * Read the subject entry + */ +static certDBEntrySubject * +ReadDBSubjectEntry(NSSLOWCERTCertDBHandle *handle, SECItem *derSubject) +{ + PRArenaPool *arena = NULL; + PRArenaPool *tmparena = NULL; + certDBEntrySubject *entry; + SECItem dbkey; + SECItem dbentry; + SECStatus rv; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + entry = (certDBEntrySubject *)PORT_ArenaAlloc(arena, + sizeof(certDBEntrySubject)); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + entry->common.arena = arena; + entry->common.type = certDBEntryTypeSubject; + + rv = EncodeDBSubjectKey(derSubject, tmparena, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = ReadDBEntry(handle, &entry->common, &dbkey, &dbentry, tmparena); + if ( rv == SECFailure ) { + goto loser; + } + + rv = DecodeDBSubjectEntry(entry, &dbentry, derSubject); + if ( rv == SECFailure ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(entry); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(NULL); +} + +/* + * Encode a subject name entry into byte stream suitable for + * the database + */ +static SECStatus +WriteDBSubjectEntry(NSSLOWCERTCertDBHandle *handle, certDBEntrySubject *entry) +{ + SECItem dbitem, dbkey; + PRArenaPool *tmparena = NULL; + SECStatus rv; + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + goto loser; + } + + rv = EncodeDBSubjectEntry(entry, tmparena, &dbitem); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = EncodeDBSubjectKey(&entry->derSubject, tmparena, &dbkey); + if ( rv != SECSuccess ) { + goto loser; + } + + /* now write it to the database */ + rv = WriteDBEntry(handle, &entry->common, &dbkey, &dbitem); + if ( rv != SECSuccess ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(SECSuccess); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + return(SECFailure); + +} + +typedef enum { nsslowcert_remove, nsslowcert_add } nsslowcertUpdateType; + +static SECStatus +nsslowcert_UpdateSubjectEmailAddr(NSSLOWCERTCertDBHandle *dbhandle, + SECItem *derSubject, char *emailAddr, nsslowcertUpdateType updateType) +{ + certDBEntrySubject *entry = NULL; + int index = -1, i; + SECStatus rv; + + if (emailAddr) { + emailAddr = nsslowcert_FixupEmailAddr(emailAddr); + if (emailAddr == NULL) { + return SECFailure; + } + } else { + return SECSuccess; + } + + entry = ReadDBSubjectEntry(dbhandle,derSubject); + if (entry == NULL) { + rv = SECFailure; + goto done; + } + + for (i=0; i < (int)(entry->nemailAddrs); i++) { + if (PORT_Strcmp(entry->emailAddrs[i],emailAddr) == 0) { + index = i; + } + } + + if (updateType == nsslowcert_remove) { + if (index == -1) { + rv = SECSuccess; + goto done; + } + entry->nemailAddrs--; + for (i=index; i < (int)(entry->nemailAddrs); i++) { + entry->emailAddrs[i] = entry->emailAddrs[i+1]; + } + } else { + char **newAddrs = NULL; + + if (index != -1) { + rv = SECSuccess; + goto done; + } + newAddrs = (char **)PORT_ArenaAlloc(entry->common.arena, + (entry->nemailAddrs+1)* sizeof(char *)); + if (!newAddrs) { + rv = SECFailure; + goto done; + } + for (i=0; i < (int)(entry->nemailAddrs); i++) { + newAddrs[i] = entry->emailAddrs[i]; + } + newAddrs[entry->nemailAddrs] = + PORT_ArenaStrdup(entry->common.arena,emailAddr); + if (!newAddrs[entry->nemailAddrs]) { + rv = SECFailure; + goto done; + } + entry->emailAddrs = newAddrs; + entry->nemailAddrs++; + } + + /* delete the subject entry */ + DeleteDBSubjectEntry(dbhandle, derSubject); + + /* write the new one */ + rv = WriteDBSubjectEntry(dbhandle, entry); + + done: + if (entry) DestroyDBEntry((certDBEntry *)entry); + if (emailAddr) PORT_Free(emailAddr); + return rv; +} + +/* + * writes a nickname to an existing subject entry that does not currently + * have one + */ +static SECStatus +AddNicknameToSubject(NSSLOWCERTCertDBHandle *dbhandle, + NSSLOWCERTCertificate *cert, char *nickname) +{ + certDBEntrySubject *entry; + SECStatus rv; + + if ( nickname == NULL ) { + return(SECFailure); + } + + entry = ReadDBSubjectEntry(dbhandle,&cert->derSubject); + PORT_Assert(entry != NULL); + if ( entry == NULL ) { + goto loser; + } + + PORT_Assert(entry->nickname == NULL); + if ( entry->nickname != NULL ) { + goto loser; + } + + entry->nickname = PORT_ArenaStrdup(entry->common.arena, nickname); + + if ( entry->nickname == NULL ) { + goto loser; + } + + /* delete the subject entry */ + DeleteDBSubjectEntry(dbhandle, &cert->derSubject); + + /* write the new one */ + rv = WriteDBSubjectEntry(dbhandle, entry); + if ( rv != SECSuccess ) { + goto loser; + } + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * create a new version entry + */ +static certDBEntryVersion * +NewDBVersionEntry(unsigned int flags) +{ + PRArenaPool *arena = NULL; + certDBEntryVersion *entry; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + entry = (certDBEntryVersion *)PORT_ArenaAlloc(arena, + sizeof(certDBEntryVersion)); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + entry->common.arena = arena; + entry->common.type = certDBEntryTypeVersion; + entry->common.version = CERT_DB_FILE_VERSION; + entry->common.flags = flags; + + return(entry); +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(NULL); +} + +/* + * Read the version entry + */ +static certDBEntryVersion * +ReadDBVersionEntry(NSSLOWCERTCertDBHandle *handle) +{ + PRArenaPool *arena = NULL; + PRArenaPool *tmparena = NULL; + certDBEntryVersion *entry; + SECItem dbkey; + SECItem dbentry; + SECStatus rv; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + entry = PORT_ArenaZNew(arena, certDBEntryVersion); + if ( entry == NULL ) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + entry->common.arena = arena; + entry->common.type = certDBEntryTypeVersion; + + /* now get the database key and format it */ + dbkey.len = SEC_DB_VERSION_KEY_LEN + SEC_DB_KEY_HEADER_LEN; + dbkey.data = (unsigned char *)PORT_ArenaAlloc(tmparena, dbkey.len); + if ( dbkey.data == NULL ) { + goto loser; + } + PORT_Memcpy(&dbkey.data[SEC_DB_KEY_HEADER_LEN], SEC_DB_VERSION_KEY, + SEC_DB_VERSION_KEY_LEN); + + rv = ReadDBEntry(handle, &entry->common, &dbkey, &dbentry, tmparena); + if (rv != SECSuccess) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(entry); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(NULL); +} + + +/* + * Encode a version entry into byte stream suitable for + * the database + */ +static SECStatus +WriteDBVersionEntry(NSSLOWCERTCertDBHandle *handle, certDBEntryVersion *entry) +{ + SECItem dbitem, dbkey; + PRArenaPool *tmparena = NULL; + SECStatus rv; + + tmparena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( tmparena == NULL ) { + goto loser; + } + + /* allocate space for encoded database record, including space + * for low level header + */ + dbitem.len = SEC_DB_ENTRY_HEADER_LEN; + + dbitem.data = (unsigned char *)PORT_ArenaAlloc(tmparena, dbitem.len); + if ( dbitem.data == NULL) { + PORT_SetError(SEC_ERROR_NO_MEMORY); + goto loser; + } + + /* now get the database key and format it */ + dbkey.len = SEC_DB_VERSION_KEY_LEN + SEC_DB_KEY_HEADER_LEN; + dbkey.data = (unsigned char *)PORT_ArenaAlloc(tmparena, dbkey.len); + if ( dbkey.data == NULL ) { + goto loser; + } + PORT_Memcpy(&dbkey.data[SEC_DB_KEY_HEADER_LEN], SEC_DB_VERSION_KEY, + SEC_DB_VERSION_KEY_LEN); + + /* now write it to the database */ + rv = WriteDBEntry(handle, &entry->common, &dbkey, &dbitem); + if ( rv != SECSuccess ) { + goto loser; + } + + PORT_FreeArena(tmparena, PR_FALSE); + return(SECSuccess); + +loser: + if ( tmparena ) { + PORT_FreeArena(tmparena, PR_FALSE); + } + return(SECFailure); +} + +/* + * cert is no longer a perm cert, but will remain a temp cert + */ +static SECStatus +RemovePermSubjectNode(NSSLOWCERTCertificate *cert) +{ + certDBEntrySubject *entry; + unsigned int i; + SECStatus rv; + + entry = ReadDBSubjectEntry(cert->dbhandle,&cert->derSubject); + if ( entry == NULL ) { + return(SECFailure); + } + + PORT_Assert(entry->ncerts); + rv = SECFailure; + + if ( entry->ncerts > 1 ) { + for ( i = 0; i < entry->ncerts; i++ ) { + if ( SECITEM_CompareItem(&entry->certKeys[i], &cert->certKey) == + SECEqual ) { + /* copy rest of list forward one entry */ + for ( i = i + 1; i < entry->ncerts; i++ ) { + entry->certKeys[i-1] = entry->certKeys[i]; + entry->keyIDs[i-1] = entry->keyIDs[i]; + } + entry->ncerts--; + DeleteDBSubjectEntry(cert->dbhandle, &cert->derSubject); + rv = WriteDBSubjectEntry(cert->dbhandle, entry); + break; + } + } + } else { + /* no entries left, delete the perm entry in the DB */ + if ( entry->emailAddrs ) { + /* if the subject had an email record, then delete it too */ + for (i=0; i < entry->nemailAddrs; i++) { + DeleteDBSMimeEntry(cert->dbhandle, entry->emailAddrs[i]); + } + } + if ( entry->nickname ) { + DeleteDBNicknameEntry(cert->dbhandle, entry->nickname); + } + + DeleteDBSubjectEntry(cert->dbhandle, &cert->derSubject); + } + DestroyDBEntry((certDBEntry *)entry); + + return(rv); +} + +/* + * add a cert to the perm subject list + */ +static SECStatus +AddPermSubjectNode(certDBEntrySubject *entry, NSSLOWCERTCertificate *cert, + char *nickname) +{ + SECItem *newCertKeys, *newKeyIDs; + unsigned int i, new_i; + SECStatus rv; + unsigned int ncerts; + + PORT_Assert(entry); + ncerts = entry->ncerts; + + if ( nickname && entry->nickname ) { + /* nicknames must be the same */ + PORT_Assert(PORT_Strcmp(nickname, entry->nickname) == 0); + } + + if ( ( entry->nickname == NULL ) && ( nickname != NULL ) ) { + /* copy nickname into the entry */ + entry->nickname = PORT_ArenaStrdup(entry->common.arena, nickname); + if ( entry->nickname == NULL ) { + return(SECFailure); + } + } + + /* a DB entry already exists, so add this cert */ + newCertKeys = PORT_ArenaZNewArray(entry->common.arena, SECItem, ncerts + 1); + newKeyIDs = PORT_ArenaZNewArray(entry->common.arena, SECItem, ncerts + 1); + + if ( ( newCertKeys == NULL ) || ( newKeyIDs == NULL ) ) { + return(SECFailure); + } + + /* Step 1: copy certs older than "cert" into new entry. */ + for ( i = 0, new_i=0; i < ncerts; i++ ) { + NSSLOWCERTCertificate *cmpcert; + PRBool isNewer; + cmpcert = nsslowcert_FindCertByKey(cert->dbhandle, + &entry->certKeys[i]); + /* The entry has been corrupted, remove it from the list */ + if (!cmpcert) { + continue; + } + + isNewer = nsslowcert_IsNewer(cert, cmpcert); + nsslowcert_DestroyCertificate(cmpcert); + if ( isNewer ) + break; + /* copy this cert entry */ + newCertKeys[new_i] = entry->certKeys[i]; + newKeyIDs[new_i] = entry->keyIDs[i]; + new_i++; + } + + /* Step 2: Add "cert" to the entry. */ + rv = SECITEM_CopyItem(entry->common.arena, &newCertKeys[new_i], + &cert->certKey); + if ( rv != SECSuccess ) { + return(SECFailure); + } + rv = SECITEM_CopyItem(entry->common.arena, &newKeyIDs[new_i], + &cert->subjectKeyID); + if ( rv != SECSuccess ) { + return(SECFailure); + } + new_i++; + + /* Step 3: copy remaining certs (if any) from old entry to new. */ + for ( ; i < ncerts; i++ ,new_i++) { + newCertKeys[new_i] = entry->certKeys[i]; + newKeyIDs[new_i] = entry->keyIDs[i]; + } + + /* update certKeys and keyIDs */ + entry->certKeys = newCertKeys; + entry->keyIDs = newKeyIDs; + + /* set new count value */ + entry->ncerts = new_i; + + DeleteDBSubjectEntry(cert->dbhandle, &cert->derSubject); + rv = WriteDBSubjectEntry(cert->dbhandle, entry); + return(rv); +} + + +SECStatus +nsslowcert_TraversePermCertsForSubject(NSSLOWCERTCertDBHandle *handle, + SECItem *derSubject, + NSSLOWCERTCertCallback cb, void *cbarg) +{ + certDBEntrySubject *entry; + unsigned int i; + NSSLOWCERTCertificate *cert; + SECStatus rv = SECSuccess; + + entry = ReadDBSubjectEntry(handle, derSubject); + + if ( entry == NULL ) { + return(SECFailure); + } + + for( i = 0; i < entry->ncerts; i++ ) { + cert = nsslowcert_FindCertByKey(handle, &entry->certKeys[i]); + if (!cert) { + continue; + } + rv = (* cb)(cert, cbarg); + nsslowcert_DestroyCertificate(cert); + if ( rv == SECFailure ) { + break; + } + } + + DestroyDBEntry((certDBEntry *)entry); + + return(rv); +} + +int +nsslowcert_NumPermCertsForSubject(NSSLOWCERTCertDBHandle *handle, + SECItem *derSubject) +{ + certDBEntrySubject *entry; + int ret; + + entry = ReadDBSubjectEntry(handle, derSubject); + + if ( entry == NULL ) { + return(SECFailure); + } + + ret = entry->ncerts; + + DestroyDBEntry((certDBEntry *)entry); + + return(ret); +} + +SECStatus +nsslowcert_TraversePermCertsForNickname(NSSLOWCERTCertDBHandle *handle, + char *nickname, NSSLOWCERTCertCallback cb, void *cbarg) +{ + certDBEntryNickname *nnentry = NULL; + certDBEntrySMime *smentry = NULL; + SECStatus rv; + SECItem *derSubject = NULL; + + nnentry = ReadDBNicknameEntry(handle, nickname); + if ( nnentry ) { + derSubject = &nnentry->subjectName; + } else { + smentry = nsslowcert_ReadDBSMimeEntry(handle, nickname); + if ( smentry ) { + derSubject = &smentry->subjectName; + } + } + + if ( derSubject ) { + rv = nsslowcert_TraversePermCertsForSubject(handle, derSubject, + cb, cbarg); + } else { + rv = SECFailure; + } + + if ( nnentry ) { + DestroyDBEntry((certDBEntry *)nnentry); + } + if ( smentry ) { + DestroyDBEntry((certDBEntry *)smentry); + } + + return(rv); +} + +int +nsslowcert_NumPermCertsForNickname(NSSLOWCERTCertDBHandle *handle, + char *nickname) +{ + certDBEntryNickname *entry; + int ret; + + entry = ReadDBNicknameEntry(handle, nickname); + + if ( entry ) { + ret = nsslowcert_NumPermCertsForSubject(handle, &entry->subjectName); + DestroyDBEntry((certDBEntry *)entry); + } else { + ret = 0; + } + return(ret); +} + +/* + * add a nickname to a cert that doesn't have one + */ +static SECStatus +AddNicknameToPermCert(NSSLOWCERTCertDBHandle *dbhandle, + NSSLOWCERTCertificate *cert, char *nickname) +{ + certDBEntryCert *entry; + int rv; + + entry = cert->dbEntry; + PORT_Assert(entry != NULL); + if ( entry == NULL ) { + goto loser; + } + + pkcs11_freeNickname(entry->nickname,entry->nicknameSpace); + entry->nickname = NULL; + entry->nickname = pkcs11_copyNickname(nickname,entry->nicknameSpace, + sizeof(entry->nicknameSpace)); + + rv = WriteDBCertEntry(dbhandle, entry); + if ( rv ) { + goto loser; + } + + pkcs11_freeNickname(cert->nickname,cert->nicknameSpace); + cert->nickname = NULL; + cert->nickname = pkcs11_copyNickname(nickname,cert->nicknameSpace, + sizeof(cert->nicknameSpace)); + + return(SECSuccess); + +loser: + return(SECFailure); +} + +/* + * add a nickname to a cert that is already in the perm database, but doesn't + * have one yet (it is probably an e-mail cert). + */ +SECStatus +nsslowcert_AddPermNickname(NSSLOWCERTCertDBHandle *dbhandle, + NSSLOWCERTCertificate *cert, char *nickname) +{ + SECStatus rv = SECFailure; + certDBEntrySubject *entry = NULL; + certDBEntryNickname *nicknameEntry = NULL; + + nsslowcert_LockDB(dbhandle); + + entry = ReadDBSubjectEntry(dbhandle, &cert->derSubject); + if (entry == NULL) goto loser; + + if ( entry->nickname == NULL ) { + + /* no nickname for subject */ + rv = AddNicknameToSubject(dbhandle, cert, nickname); + if ( rv != SECSuccess ) { + goto loser; + } + rv = AddNicknameToPermCert(dbhandle, cert, nickname); + if ( rv != SECSuccess ) { + goto loser; + } + nicknameEntry = NewDBNicknameEntry(nickname, &cert->derSubject, 0); + if ( nicknameEntry == NULL ) { + goto loser; + } + + rv = WriteDBNicknameEntry(dbhandle, nicknameEntry); + if ( rv != SECSuccess ) { + goto loser; + } + } else { + /* subject already has a nickname */ + rv = AddNicknameToPermCert(dbhandle, cert, entry->nickname); + if ( rv != SECSuccess ) { + goto loser; + } + /* make sure nickname entry exists. If the database was corrupted, + * we may have lost the nickname entry. Add it back now */ + nicknameEntry = ReadDBNicknameEntry(dbhandle, entry->nickname); + if (nicknameEntry == NULL ) { + nicknameEntry = NewDBNicknameEntry(entry->nickname, + &cert->derSubject, 0); + if ( nicknameEntry == NULL ) { + goto loser; + } + + rv = WriteDBNicknameEntry(dbhandle, nicknameEntry); + if ( rv != SECSuccess ) { + goto loser; + } + } + } + rv = SECSuccess; + +loser: + if (entry) { + DestroyDBEntry((certDBEntry *)entry); + } + if (nicknameEntry) { + DestroyDBEntry((certDBEntry *)nicknameEntry); + } + nsslowcert_UnlockDB(dbhandle); + return(rv); +} + +static certDBEntryCert * +AddCertToPermDB(NSSLOWCERTCertDBHandle *handle, NSSLOWCERTCertificate *cert, + char *nickname, NSSLOWCERTCertTrust *trust) +{ + certDBEntryCert *certEntry = NULL; + certDBEntryNickname *nicknameEntry = NULL; + certDBEntrySubject *subjectEntry = NULL; + int state = 0; + SECStatus rv; + PRBool donnentry = PR_FALSE; + + if ( nickname ) { + donnentry = PR_TRUE; + } + + subjectEntry = ReadDBSubjectEntry(handle, &cert->derSubject); + + if ( subjectEntry && subjectEntry->nickname ) { + donnentry = PR_FALSE; + nickname = subjectEntry->nickname; + } + + certEntry = NewDBCertEntry(&cert->derCert, nickname, trust, 0); + if ( certEntry == NULL ) { + goto loser; + } + + if ( donnentry ) { + nicknameEntry = NewDBNicknameEntry(nickname, &cert->derSubject, 0); + if ( nicknameEntry == NULL ) { + goto loser; + } + } + + rv = WriteDBCertEntry(handle, certEntry); + if ( rv != SECSuccess ) { + goto loser; + } + state = 1; + + if ( nicknameEntry ) { + rv = WriteDBNicknameEntry(handle, nicknameEntry); + if ( rv != SECSuccess ) { + goto loser; + } + } + + state = 2; + + /* "Change" handles if necessary */ + cert->dbhandle = handle; + + /* add to or create new subject entry */ + if ( subjectEntry ) { + /* REWRITE BASED ON SUBJECT ENTRY */ + rv = AddPermSubjectNode(subjectEntry, cert, nickname); + if ( rv != SECSuccess ) { + goto loser; + } + } else { + /* make a new subject entry - this case is only used when updating + * an old version of the database. This is OK because the oldnickname + * db format didn't allow multiple certs with the same subject. + */ + /* where does subjectKeyID and certKey come from? */ + subjectEntry = NewDBSubjectEntry(&cert->derSubject, &cert->certKey, + &cert->subjectKeyID, nickname, + NULL, 0); + if ( subjectEntry == NULL ) { + goto loser; + } + rv = WriteDBSubjectEntry(handle, subjectEntry); + if ( rv != SECSuccess ) { + goto loser; + } + } + + state = 3; + + if ( nicknameEntry ) { + DestroyDBEntry((certDBEntry *)nicknameEntry); + } + + if ( subjectEntry ) { + DestroyDBEntry((certDBEntry *)subjectEntry); + } + + return(certEntry); + +loser: + /* don't leave partial entry in the database */ + if ( state > 0 ) { + rv = DeleteDBCertEntry(handle, &cert->certKey); + } + if ( ( state > 1 ) && donnentry ) { + rv = DeleteDBNicknameEntry(handle, nickname); + } + if ( state > 2 ) { + rv = DeleteDBSubjectEntry(handle, &cert->derSubject); + } + if ( certEntry ) { + DestroyDBEntry((certDBEntry *)certEntry); + } + if ( nicknameEntry ) { + DestroyDBEntry((certDBEntry *)nicknameEntry); + } + if ( subjectEntry ) { + DestroyDBEntry((certDBEntry *)subjectEntry); + } + + return(NULL); +} + +/* forward declaration */ +static SECStatus +UpdateV7DB(NSSLOWCERTCertDBHandle *handle, DB *updatedb); + +/* + * version 8 uses the same schema as version 7. The only differences are + * 1) version 8 db uses the blob shim to store data entries > 32k. + * 2) version 8 db sets the db block size to 32k. + * both of these are dealt with by the handle. + */ + +static SECStatus +UpdateV8DB(NSSLOWCERTCertDBHandle *handle, DB *updatedb) +{ + return UpdateV7DB(handle,updatedb); +} + + +/* + * we could just blindly sequence through reading key data pairs and writing + * them back out, but some cert.db's have gotten quite large and may have some + * subtle corruption problems, so instead we cycle through the certs and + * CRL's and S/MIME profiles and rebuild our subject lists from those records. + */ +static SECStatus +UpdateV7DB(NSSLOWCERTCertDBHandle *handle, DB *updatedb) +{ + DBT key, data; + int ret; + NSSLOWCERTCertificate *cert; + PRBool isKRL = PR_FALSE; + certDBEntryType entryType; + SECItem dbEntry, dbKey; + certDBEntryRevocation crlEntry; + certDBEntryCert certEntry; + certDBEntrySMime smimeEntry; + SECStatus rv; + + ret = (* updatedb->seq)(updatedb, &key, &data, R_FIRST); + + if ( ret ) { + return(SECFailure); + } + + do { + unsigned char *dataBuf = (unsigned char *)data.data; + unsigned char *keyBuf = (unsigned char *)key.data; + dbEntry.data = &dataBuf[SEC_DB_ENTRY_HEADER_LEN]; + dbEntry.len = data.size - SEC_DB_ENTRY_HEADER_LEN; + entryType = (certDBEntryType) keyBuf[0]; + dbKey.data = &keyBuf[SEC_DB_KEY_HEADER_LEN]; + dbKey.len = key.size - SEC_DB_KEY_HEADER_LEN; + if ((dbEntry.len <= 0) || (dbKey.len <= 0)) { + continue; + } + + switch (entryType) { + /* these entries will get regenerated as we read the + * rest of the data from the database */ + case certDBEntryTypeVersion: + case certDBEntryTypeSubject: + case certDBEntryTypeContentVersion: + case certDBEntryTypeNickname: + /* smime profiles need entries created after the certs have + * been imported, loop over them in a second run */ + case certDBEntryTypeSMimeProfile: + break; + + case certDBEntryTypeCert: + /* decode Entry */ + certEntry.common.version = (unsigned int)dataBuf[0]; + certEntry.common.type = entryType; + certEntry.common.flags = (unsigned int)dataBuf[2]; + rv = DecodeDBCertEntry(&certEntry,&dbEntry); + if (rv != SECSuccess) { + break; + } + /* should we check for existing duplicates? */ + cert = nsslowcert_DecodeDERCertificate(&certEntry.derCert, + certEntry.nickname); + if (cert) { + nsslowcert_UpdatePermCert(handle, cert, certEntry.nickname, + &certEntry.trust); + nsslowcert_DestroyCertificate(cert); + } + /* free any data the decode may have allocated. */ + pkcs11_freeStaticData(certEntry.derCert.data, + certEntry.derCertSpace); + pkcs11_freeNickname(certEntry.nickname, certEntry.nicknameSpace); + break; + + case certDBEntryTypeKeyRevocation: + isKRL = PR_TRUE; + /* fall through */ + case certDBEntryTypeRevocation: + crlEntry.common.version = (unsigned int)dataBuf[0]; + crlEntry.common.type = entryType; + crlEntry.common.flags = (unsigned int)dataBuf[2]; + crlEntry.common.arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if (crlEntry.common.arena == NULL) { + break; + } + rv = DecodeDBCrlEntry(&crlEntry,&dbEntry); + if (rv != SECSuccess) { + break; + } + nsslowcert_UpdateCrl(handle, &crlEntry.derCrl, &dbKey, + crlEntry.url, isKRL); + /* free data allocated by the decode */ + PORT_FreeArena(crlEntry.common.arena, PR_FALSE); + crlEntry.common.arena = NULL; + break; + + default: + break; + } + } while ( (* updatedb->seq)(updatedb, &key, &data, R_NEXT) == 0 ); + + /* now loop again updating just the SMimeProfile. */ + ret = (* updatedb->seq)(updatedb, &key, &data, R_FIRST); + + if ( ret ) { + return(SECFailure); + } + + do { + unsigned char *dataBuf = (unsigned char *)data.data; + unsigned char *keyBuf = (unsigned char *)key.data; + dbEntry.data = &dataBuf[SEC_DB_ENTRY_HEADER_LEN]; + dbEntry.len = data.size - SEC_DB_ENTRY_HEADER_LEN; + entryType = (certDBEntryType) keyBuf[0]; + if (entryType != certDBEntryTypeSMimeProfile) { + continue; + } + dbKey.data = &keyBuf[SEC_DB_KEY_HEADER_LEN]; + dbKey.len = key.size - SEC_DB_KEY_HEADER_LEN; + if ((dbEntry.len <= 0) || (dbKey.len <= 0)) { + continue; + } + smimeEntry.common.version = (unsigned int)dataBuf[0]; + smimeEntry.common.type = entryType; + smimeEntry.common.flags = (unsigned int)dataBuf[2]; + smimeEntry.common.arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + /* decode entry */ + rv = DecodeDBSMimeEntry(&smimeEntry,&dbEntry,(char *)dbKey.data); + if (rv == SECSuccess) { + nsslowcert_UpdateSMimeProfile(handle, smimeEntry.emailAddr, + &smimeEntry.subjectName, &smimeEntry.smimeOptions, + &smimeEntry.optionsDate); + } + PORT_FreeArena(smimeEntry.common.arena, PR_FALSE); + smimeEntry.common.arena = NULL; + } while ( (* updatedb->seq)(updatedb, &key, &data, R_NEXT) == 0 ); + + (* updatedb->close)(updatedb); + + /* a database update is a good time to go back and verify the integrity of + * the keys and certs */ + handle->dbVerify = PR_TRUE; + return(SECSuccess); +} + +/* + * NOTE - Version 6 DB did not go out to the real world in a release, + * so we can remove this function in a later release. + */ +static SECStatus +UpdateV6DB(NSSLOWCERTCertDBHandle *handle, DB *updatedb) +{ + int ret; + DBT key, data; + unsigned char *buf, *tmpbuf = NULL; + certDBEntryType type; + certDBEntryNickname *nnEntry = NULL; + certDBEntrySubject *subjectEntry = NULL; + certDBEntrySMime *emailEntry = NULL; + char *nickname; + char *emailAddr; + SECStatus rv; + + /* + * Sequence through the old database and copy all of the entries + * to the new database. Subject name entries will have the new + * fields inserted into them (with zero length). + */ + ret = (* updatedb->seq)(updatedb, &key, &data, R_FIRST); + if ( ret ) { + return(SECFailure); + } + + do { + buf = (unsigned char *)data.data; + + if ( data.size >= 3 ) { + if ( buf[0] == 6 ) { /* version number */ + type = (certDBEntryType)buf[1]; + if ( type == certDBEntryTypeSubject ) { + /* expando subjecto entrieo */ + tmpbuf = (unsigned char *)PORT_Alloc(data.size + 4); + if ( tmpbuf ) { + /* copy header stuff */ + PORT_Memcpy(tmpbuf, buf, SEC_DB_ENTRY_HEADER_LEN + 2); + /* insert 4 more bytes of zero'd header */ + PORT_Memset(&tmpbuf[SEC_DB_ENTRY_HEADER_LEN + 2], + 0, 4); + /* copy rest of the data */ + PORT_Memcpy(&tmpbuf[SEC_DB_ENTRY_HEADER_LEN + 6], + &buf[SEC_DB_ENTRY_HEADER_LEN + 2], + data.size - (SEC_DB_ENTRY_HEADER_LEN + 2)); + + data.data = (void *)tmpbuf; + data.size += 4; + buf = tmpbuf; + } + } else if ( type == certDBEntryTypeCert ) { + /* expando certo entrieo */ + tmpbuf = (unsigned char *)PORT_Alloc(data.size + 3); + if ( tmpbuf ) { + /* copy header stuff */ + PORT_Memcpy(tmpbuf, buf, SEC_DB_ENTRY_HEADER_LEN); + + /* copy trust flage, setting msb's to 0 */ + tmpbuf[SEC_DB_ENTRY_HEADER_LEN] = 0; + tmpbuf[SEC_DB_ENTRY_HEADER_LEN+1] = + buf[SEC_DB_ENTRY_HEADER_LEN]; + tmpbuf[SEC_DB_ENTRY_HEADER_LEN+2] = 0; + tmpbuf[SEC_DB_ENTRY_HEADER_LEN+3] = + buf[SEC_DB_ENTRY_HEADER_LEN+1]; + tmpbuf[SEC_DB_ENTRY_HEADER_LEN+4] = 0; + tmpbuf[SEC_DB_ENTRY_HEADER_LEN+5] = + buf[SEC_DB_ENTRY_HEADER_LEN+2]; + + /* copy rest of the data */ + PORT_Memcpy(&tmpbuf[SEC_DB_ENTRY_HEADER_LEN + 6], + &buf[SEC_DB_ENTRY_HEADER_LEN + 3], + data.size - (SEC_DB_ENTRY_HEADER_LEN + 3)); + + data.data = (void *)tmpbuf; + data.size += 3; + buf = tmpbuf; + } + + } + + /* update the record version number */ + buf[0] = CERT_DB_FILE_VERSION; + + /* copy to the new database */ + ret = certdb_Put(handle->permCertDB, &key, &data, 0); + if ( tmpbuf ) { + PORT_Free(tmpbuf); + tmpbuf = NULL; + } + } + } + } while ( (* updatedb->seq)(updatedb, &key, &data, R_NEXT) == 0 ); + + ret = certdb_Sync(handle->permCertDB, 0); + + ret = (* updatedb->seq)(updatedb, &key, &data, R_FIRST); + if ( ret ) { + return(SECFailure); + } + + do { + buf = (unsigned char *)data.data; + + if ( data.size >= 3 ) { + if ( buf[0] == CERT_DB_FILE_VERSION ) { /* version number */ + type = (certDBEntryType)buf[1]; + if ( type == certDBEntryTypeNickname ) { + nickname = &((char *)key.data)[1]; + + /* get the matching nickname entry in the new DB */ + nnEntry = ReadDBNicknameEntry(handle, nickname); + if ( nnEntry == NULL ) { + goto endloop; + } + + /* find the subject entry pointed to by nickname */ + subjectEntry = ReadDBSubjectEntry(handle, + &nnEntry->subjectName); + if ( subjectEntry == NULL ) { + goto endloop; + } + + subjectEntry->nickname = + (char *)PORT_ArenaAlloc(subjectEntry->common.arena, + key.size - 1); + if ( subjectEntry->nickname ) { + PORT_Memcpy(subjectEntry->nickname, nickname, + key.size - 1); + rv = WriteDBSubjectEntry(handle, subjectEntry); + } + } else if ( type == certDBEntryTypeSMimeProfile ) { + emailAddr = &((char *)key.data)[1]; + + /* get the matching smime entry in the new DB */ + emailEntry = nsslowcert_ReadDBSMimeEntry(handle, emailAddr); + if ( emailEntry == NULL ) { + goto endloop; + } + + /* find the subject entry pointed to by nickname */ + subjectEntry = ReadDBSubjectEntry(handle, + &emailEntry->subjectName); + if ( subjectEntry == NULL ) { + goto endloop; + } + + subjectEntry->emailAddrs = (char **) + PORT_ArenaAlloc(subjectEntry->common.arena, + sizeof(char *)); + if ( subjectEntry->emailAddrs ) { + subjectEntry->emailAddrs[0] = + (char *)PORT_ArenaAlloc(subjectEntry->common.arena, + key.size - 1); + if ( subjectEntry->emailAddrs[0] ) { + PORT_Memcpy(subjectEntry->emailAddrs[0], emailAddr, + key.size - 1); + subjectEntry->nemailAddrs = 1; + rv = WriteDBSubjectEntry(handle, subjectEntry); + } + } + } + +endloop: + if ( subjectEntry ) { + DestroyDBEntry((certDBEntry *)subjectEntry); + subjectEntry = NULL; + } + if ( nnEntry ) { + DestroyDBEntry((certDBEntry *)nnEntry); + nnEntry = NULL; + } + if ( emailEntry ) { + DestroyDBEntry((certDBEntry *)emailEntry); + emailEntry = NULL; + } + } + } + } while ( (* updatedb->seq)(updatedb, &key, &data, R_NEXT) == 0 ); + + ret = certdb_Sync(handle->permCertDB, 0); + + (* updatedb->close)(updatedb); + return(SECSuccess); +} + + +static SECStatus +updateV5Callback(NSSLOWCERTCertificate *cert, SECItem *k, void *pdata) +{ + NSSLOWCERTCertDBHandle *handle; + certDBEntryCert *entry; + NSSLOWCERTCertTrust *trust; + + handle = (NSSLOWCERTCertDBHandle *)pdata; + trust = &cert->dbEntry->trust; + + /* SSL user certs can be used for email if they have an email addr */ + if ( cert->emailAddr && ( trust->sslFlags & CERTDB_USER ) && + ( trust->emailFlags == 0 ) ) { + trust->emailFlags = CERTDB_USER; + } + /* servers didn't set the user flags on the server cert.. */ + if (PORT_Strcmp(cert->dbEntry->nickname,"Server-Cert") == 0) { + trust->sslFlags |= CERTDB_USER; + } + + entry = AddCertToPermDB(handle, cert, cert->dbEntry->nickname, + &cert->dbEntry->trust); + if ( entry ) { + DestroyDBEntry((certDBEntry *)entry); + } + + return(SECSuccess); +} + +static SECStatus +UpdateV5DB(NSSLOWCERTCertDBHandle *handle, DB *updatedb) +{ + NSSLOWCERTCertDBHandle updatehandle; + SECStatus rv; + + updatehandle.permCertDB = updatedb; + updatehandle.dbMon = PZ_NewMonitor(nssILockCertDB); + updatehandle.dbVerify = 0; + updatehandle.ref = 1; /* prevent premature close */ + + rv = nsslowcert_TraversePermCerts(&updatehandle, updateV5Callback, + (void *)handle); + + PZ_DestroyMonitor(updatehandle.dbMon); + + (* updatedb->close)(updatedb); + return(SECSuccess); +} + +static PRBool +isV4DB(DB *db) { + DBT key,data; + int ret; + + key.data = "Version"; + key.size = 7; + + ret = (*db->get)(db, &key, &data, 0); + if (ret) { + return PR_FALSE; + } + + if ((data.size == 1) && (*(unsigned char *)data.data <= 4)) { + return PR_TRUE; + } + + return PR_FALSE; +} + +static SECStatus +UpdateV4DB(NSSLOWCERTCertDBHandle *handle, DB *updatedb) +{ + DBT key, data; + certDBEntryCert *entry, *entry2; + int ret; + PRArenaPool *arena = NULL; + NSSLOWCERTCertificate *cert; + + ret = (* updatedb->seq)(updatedb, &key, &data, R_FIRST); + + if ( ret ) { + return(SECFailure); + } + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if (arena == NULL) { + return(SECFailure); + } + + do { + if ( data.size != 1 ) { /* skip version number */ + + /* decode the old DB entry */ + entry = (certDBEntryCert *) + DecodeV4DBCertEntry((unsigned char*)data.data, data.size); + + if ( entry ) { + cert = nsslowcert_DecodeDERCertificate(&entry->derCert, + entry->nickname); + + if ( cert != NULL ) { + /* add to new database */ + entry2 = AddCertToPermDB(handle, cert, entry->nickname, + &entry->trust); + + nsslowcert_DestroyCertificate(cert); + if ( entry2 ) { + DestroyDBEntry((certDBEntry *)entry2); + } + } + DestroyDBEntry((certDBEntry *)entry); + } + } + } while ( (* updatedb->seq)(updatedb, &key, &data, R_NEXT) == 0 ); + + PORT_FreeArena(arena, PR_FALSE); + (* updatedb->close)(updatedb); + return(SECSuccess); +} + + +/* + * return true if a database key conflict exists + */ +PRBool +nsslowcert_CertDBKeyConflict(SECItem *derCert, NSSLOWCERTCertDBHandle *handle) +{ + SECStatus rv; + DBT tmpdata; + DBT namekey; + int ret; + SECItem keyitem; + PRArenaPool *arena = NULL; + SECItem derKey; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + goto loser; + } + + /* get the db key of the cert */ + rv = nsslowcert_KeyFromDERCert(arena, derCert, &derKey); + if ( rv != SECSuccess ) { + goto loser; + } + + rv = EncodeDBCertKey(&derKey, arena, &keyitem); + if ( rv != SECSuccess ) { + goto loser; + } + + namekey.data = keyitem.data; + namekey.size = keyitem.len; + + ret = certdb_Get(handle->permCertDB, &namekey, &tmpdata, 0); + if ( ret == 0 ) { + goto loser; + } + + PORT_FreeArena(arena, PR_FALSE); + + return(PR_FALSE); +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return(PR_TRUE); +} + +/* + * return true if a nickname conflict exists + * NOTE: caller must have already made sure that this exact cert + * doesn't exist in the DB + */ +static PRBool +nsslowcert_CertNicknameConflict(char *nickname, SECItem *derSubject, + NSSLOWCERTCertDBHandle *handle) +{ + PRBool rv; + certDBEntryNickname *entry; + + if ( nickname == NULL ) { + return(PR_FALSE); + } + + entry = ReadDBNicknameEntry(handle, nickname); + + if ( entry == NULL ) { + /* no entry for this nickname, so no conflict */ + return(PR_FALSE); + } + + rv = PR_TRUE; + if ( SECITEM_CompareItem(derSubject, &entry->subjectName) == SECEqual ) { + /* if subject names are the same, then no conflict */ + rv = PR_FALSE; + } + + DestroyDBEntry((certDBEntry *)entry); + return(rv); +} + +#ifdef DBM_USING_NSPR +#define NO_RDONLY PR_RDONLY +#define NO_RDWR PR_RDWR +#define NO_CREATE (PR_RDWR | PR_CREATE_FILE | PR_TRUNCATE) +#else +#define NO_RDONLY O_RDONLY +#define NO_RDWR O_RDWR +#define NO_CREATE (O_RDWR | O_CREAT | O_TRUNC) +#endif + +/* + * open an old database that needs to be updated + */ +static DB * +nsslowcert_openolddb(NSSLOWCERTDBNameFunc namecb, void *cbarg, int version) +{ + char * tmpname; + DB *updatedb = NULL; + + tmpname = (* namecb)(cbarg, version); /* get v6 db name */ + if ( tmpname ) { + updatedb = dbopen( tmpname, NO_RDONLY, 0600, DB_HASH, 0 ); + PORT_Free(tmpname); + } + return updatedb; +} + +static SECStatus +openNewCertDB(const char *appName, const char *prefix, const char *certdbname, + NSSLOWCERTCertDBHandle *handle, NSSLOWCERTDBNameFunc namecb, void *cbarg) +{ + SECStatus rv; + certDBEntryVersion *versionEntry = NULL; + DB *updatedb = NULL; + int status = RDB_FAIL; + + if (appName) { + handle->permCertDB=rdbopen( appName, prefix, "cert", NO_CREATE, &status); + } else { + handle->permCertDB=dbsopen(certdbname, NO_CREATE, 0600, DB_HASH, 0); + } + + /* if create fails then we lose */ + if ( handle->permCertDB == 0 ) { + return status == RDB_RETRY ? SECWouldBlock : SECFailure; + } + + /* Verify version number; */ + versionEntry = NewDBVersionEntry(0); + if ( versionEntry == NULL ) { + rv = SECFailure; + goto loser; + } + + rv = WriteDBVersionEntry(handle, versionEntry); + + DestroyDBEntry((certDBEntry *)versionEntry); + + if ( rv != SECSuccess ) { + goto loser; + } + + /* rv must already be Success here because of previous if statement */ + /* try to upgrade old db here */ + if (appName && + (updatedb = dbsopen(certdbname, NO_RDONLY, 0600, DB_HASH, 0)) != NULL) { + rv = UpdateV8DB(handle, updatedb); + } else if ((updatedb = nsslowcert_openolddb(namecb,cbarg,7)) != NULL) { + rv = UpdateV7DB(handle, updatedb); + } else if ((updatedb = nsslowcert_openolddb(namecb,cbarg,6)) != NULL) { + rv = UpdateV6DB(handle, updatedb); + } else if ((updatedb = nsslowcert_openolddb(namecb,cbarg,5)) != NULL) { + rv = UpdateV5DB(handle, updatedb); + } else if ((updatedb = nsslowcert_openolddb(namecb,cbarg,4)) != NULL) { + /* NES has v5 format db's with v4 db names! */ + if (isV4DB(updatedb)) { + rv = UpdateV4DB(handle,updatedb); + } else { + rv = UpdateV5DB(handle,updatedb); + } + } + + +loser: + db_InitComplete(handle->permCertDB); + return rv; +} + +static int +nsslowcert_GetVersionNumber( NSSLOWCERTCertDBHandle *handle) +{ + certDBEntryVersion *versionEntry = NULL; + int version = 0; + + versionEntry = ReadDBVersionEntry(handle); + if ( versionEntry == NULL ) { + return 0; + } + version = versionEntry->common.version; + DestroyDBEntry((certDBEntry *)versionEntry); + return version; +} + +/* + * Open the certificate database and index databases. Create them if + * they are not there or bad. + */ +static SECStatus +nsslowcert_OpenPermCertDB(NSSLOWCERTCertDBHandle *handle, PRBool readOnly, + const char *appName, const char *prefix, + NSSLOWCERTDBNameFunc namecb, void *cbarg) +{ + SECStatus rv; + int openflags; + char *certdbname; + int version = 0; + + certdbname = (* namecb)(cbarg, CERT_DB_FILE_VERSION); + if ( certdbname == NULL ) { + return(SECFailure); + } + + openflags = readOnly ? NO_RDONLY : NO_RDWR; + + /* + * first open the permanent file based database. + */ + if (appName) { + handle->permCertDB = rdbopen( appName, prefix, "cert", openflags, NULL); + } else { + handle->permCertDB = dbsopen( certdbname, openflags, 0600, DB_HASH, 0 ); + } + + /* check for correct version number */ + if ( handle->permCertDB ) { + version = nsslowcert_GetVersionNumber(handle); + if ((version != CERT_DB_FILE_VERSION) && + !(appName && version == CERT_DB_V7_FILE_VERSION)) { + goto loser; + } + } else if ( readOnly ) { + /* don't create if readonly */ + /* Try openning a version 7 database */ + handle->permCertDB = nsslowcert_openolddb(namecb,cbarg, 7); + if (!handle->permCertDB) { + goto loser; + } + if (nsslowcert_GetVersionNumber(handle) != 7) { + goto loser; + } + } else { + /* if first open fails, try to create a new DB */ + rv = openNewCertDB(appName,prefix,certdbname,handle,namecb,cbarg); + if (rv == SECWouldBlock) { + /* only the rdb version can fail with wouldblock */ + handle->permCertDB = + rdbopen( appName, prefix, "cert", openflags, NULL); + + /* check for correct version number */ + if ( !handle->permCertDB ) { + goto loser; + } + version = nsslowcert_GetVersionNumber(handle); + if ((version != CERT_DB_FILE_VERSION) && + !(appName && version == CERT_DB_V7_FILE_VERSION)) { + goto loser; + } + } else if (rv != SECSuccess) { + goto loser; + } + } + + PORT_Free(certdbname); + + return (SECSuccess); + +loser: + + PORT_SetError(SEC_ERROR_BAD_DATABASE); + + if ( handle->permCertDB ) { + certdb_Close(handle->permCertDB); + handle->permCertDB = 0; + } + + PORT_Free(certdbname); + + return(SECFailure); +} + +/* + * delete all DB records associated with a particular certificate + */ +static SECStatus +DeletePermCert(NSSLOWCERTCertificate *cert) +{ + SECStatus rv; + SECStatus ret; + + ret = SECSuccess; + + rv = DeleteDBCertEntry(cert->dbhandle, &cert->certKey); + if ( rv != SECSuccess ) { + ret = SECFailure; + } + + rv = RemovePermSubjectNode(cert); + + + return(ret); +} + +/* + * Delete a certificate from the permanent database. + */ +SECStatus +nsslowcert_DeletePermCertificate(NSSLOWCERTCertificate *cert) +{ + SECStatus rv; + + nsslowcert_LockDB(cert->dbhandle); + + /* delete the records from the permanent database */ + rv = DeletePermCert(cert); + + /* get rid of dbcert and stuff pointing to it */ + DestroyDBEntry((certDBEntry *)cert->dbEntry); + cert->dbEntry = NULL; + cert->trust = NULL; + + nsslowcert_UnlockDB(cert->dbhandle); + return(rv); +} + +/* + * Traverse all of the entries in the database of a particular type + * call the given function for each one. + */ +SECStatus +nsslowcert_TraverseDBEntries(NSSLOWCERTCertDBHandle *handle, + certDBEntryType type, + SECStatus (* callback)(SECItem *data, SECItem *key, + certDBEntryType type, void *pdata), + void *udata ) +{ + DBT data; + DBT key; + SECStatus rv; + int ret; + SECItem dataitem; + SECItem keyitem; + unsigned char *buf; + unsigned char *keybuf; + + ret = certdb_Seq(handle->permCertDB, &key, &data, R_FIRST); + + if ( ret ) { + return(SECFailure); + } + + do { + buf = (unsigned char *)data.data; + + if ( buf[1] == (unsigned char)type ) { + dataitem.len = data.size; + dataitem.data = buf; + dataitem.type = siBuffer; + keyitem.len = key.size - SEC_DB_KEY_HEADER_LEN; + keybuf = (unsigned char *)key.data; + keyitem.data = &keybuf[SEC_DB_KEY_HEADER_LEN]; + keyitem.type = siBuffer; + /* type should equal keybuf[0]. */ + + rv = (* callback)(&dataitem, &keyitem, type, udata); + if ( rv != SECSuccess ) { + return(rv); + } + } + } while ( certdb_Seq(handle->permCertDB, &key, &data, R_NEXT) == 0 ); + + return(SECSuccess); +} +/* + * Decode a certificate and enter it into the temporary certificate database. + * Deal with nicknames correctly + * + * This is the private entry point. + */ +static NSSLOWCERTCertificate * +DecodeACert(NSSLOWCERTCertDBHandle *handle, certDBEntryCert *entry) +{ + NSSLOWCERTCertificate *cert = NULL; + + cert = nsslowcert_DecodeDERCertificate(&entry->derCert, entry->nickname ); + + if ( cert == NULL ) { + goto loser; + } + + cert->dbhandle = handle; + cert->dbEntry = entry; + cert->trust = &entry->trust; + + return(cert); + +loser: + return(0); +} + +static NSSLOWCERTTrust * +CreateTrust(void) +{ + NSSLOWCERTTrust *trust = NULL; + + nsslowcert_LockFreeList(); + trust = trustListHead; + if (trust) { + trustListCount--; + trustListHead = trust->next; + } + PORT_Assert(trustListCount >= 0); + nsslowcert_UnlockFreeList(); + if (trust) { + return trust; + } + + return PORT_ZNew(NSSLOWCERTTrust); +} + +static void +DestroyTrustFreeList(void) +{ + NSSLOWCERTTrust *trust; + + nsslowcert_LockFreeList(); + while (NULL != (trust = trustListHead)) { + trustListCount--; + trustListHead = trust->next; + PORT_Free(trust); + } + PORT_Assert(!trustListCount); + trustListCount = 0; + nsslowcert_UnlockFreeList(); +} + +static NSSLOWCERTTrust * +DecodeTrustEntry(NSSLOWCERTCertDBHandle *handle, certDBEntryCert *entry, + const SECItem *dbKey) +{ + NSSLOWCERTTrust *trust = CreateTrust(); + if (trust == NULL) { + return trust; + } + trust->dbhandle = handle; + trust->dbEntry = entry; + trust->dbKey.data = pkcs11_copyStaticData(dbKey->data,dbKey->len, + trust->dbKeySpace, sizeof(trust->dbKeySpace)); + if (!trust->dbKey.data) { + PORT_Free(trust); + return NULL; + } + trust->dbKey.len = dbKey->len; + + trust->trust = &entry->trust; + trust->derCert = &entry->derCert; + + return(trust); +} + +typedef struct { + PermCertCallback certfunc; + NSSLOWCERTCertDBHandle *handle; + void *data; +} PermCertCallbackState; + +/* + * traversal callback to decode certs and call callers callback + */ +static SECStatus +certcallback(SECItem *dbdata, SECItem *dbkey, certDBEntryType type, void *data) +{ + PermCertCallbackState *mystate; + SECStatus rv; + certDBEntryCert *entry; + SECItem entryitem; + NSSLOWCERTCertificate *cert; + PRArenaPool *arena = NULL; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + goto loser; + } + + entry = (certDBEntryCert *)PORT_ArenaAlloc(arena, sizeof(certDBEntryCert)); + mystate = (PermCertCallbackState *)data; + entry->common.version = (unsigned int)dbdata->data[0]; + entry->common.type = (certDBEntryType)dbdata->data[1]; + entry->common.flags = (unsigned int)dbdata->data[2]; + entry->common.arena = arena; + + entryitem.len = dbdata->len - SEC_DB_ENTRY_HEADER_LEN; + entryitem.data = &dbdata->data[SEC_DB_ENTRY_HEADER_LEN]; + + rv = DecodeDBCertEntry(entry, &entryitem); + if (rv != SECSuccess ) { + goto loser; + } + entry->derCert.type = siBuffer; + + /* note: Entry is 'inheritted'. */ + cert = DecodeACert(mystate->handle, entry); + + rv = (* mystate->certfunc)(cert, dbkey, mystate->data); + + /* arena stored in entry destroyed by nsslowcert_DestroyCertificate */ + nsslowcert_DestroyCertificateNoLocking(cert); + + return(rv); + +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + return(SECFailure); +} + +/* + * Traverse all of the certificates in the permanent database and + * call the given function for each one; expect the caller to have lock. + */ +static SECStatus +TraversePermCertsNoLocking(NSSLOWCERTCertDBHandle *handle, + SECStatus (* certfunc)(NSSLOWCERTCertificate *cert, + SECItem *k, + void *pdata), + void *udata ) +{ + SECStatus rv; + PermCertCallbackState mystate; + + mystate.certfunc = certfunc; + mystate.handle = handle; + mystate.data = udata; + rv = nsslowcert_TraverseDBEntries(handle, certDBEntryTypeCert, certcallback, + (void *)&mystate); + + return(rv); +} + +/* + * Traverse all of the certificates in the permanent database and + * call the given function for each one. + */ +SECStatus +nsslowcert_TraversePermCerts(NSSLOWCERTCertDBHandle *handle, + SECStatus (* certfunc)(NSSLOWCERTCertificate *cert, SECItem *k, + void *pdata), + void *udata ) +{ + SECStatus rv; + + nsslowcert_LockDB(handle); + rv = TraversePermCertsNoLocking(handle, certfunc, udata); + nsslowcert_UnlockDB(handle); + + return(rv); +} + + + +/* + * Close the database + */ +void +nsslowcert_ClosePermCertDB(NSSLOWCERTCertDBHandle *handle) +{ + if ( handle ) { + if ( handle->permCertDB ) { + certdb_Close( handle->permCertDB ); + handle->permCertDB = NULL; + } + if (handle->dbMon) { + PZ_DestroyMonitor(handle->dbMon); + handle->dbMon = NULL; + } + PORT_Free(handle); + } + return; +} + +/* + * Get the trust attributes from a certificate + */ +SECStatus +nsslowcert_GetCertTrust(NSSLOWCERTCertificate *cert, NSSLOWCERTCertTrust *trust) +{ + SECStatus rv; + + nsslowcert_LockCertTrust(cert); + + if ( cert->trust == NULL ) { + rv = SECFailure; + } else { + *trust = *cert->trust; + rv = SECSuccess; + } + + nsslowcert_UnlockCertTrust(cert); + return(rv); +} + +/* + * Change the trust attributes of a certificate and make them permanent + * in the database. + */ +SECStatus +nsslowcert_ChangeCertTrust(NSSLOWCERTCertDBHandle *handle, + NSSLOWCERTCertificate *cert, NSSLOWCERTCertTrust *trust) +{ + certDBEntryCert *entry; + int rv; + SECStatus ret; + + nsslowcert_LockDB(handle); + nsslowcert_LockCertTrust(cert); + /* only set the trust on permanent certs */ + if ( cert->trust == NULL ) { + ret = SECFailure; + goto done; + } + + *cert->trust = *trust; + if ( cert->dbEntry == NULL ) { + ret = SECSuccess; /* not in permanent database */ + goto done; + } + + entry = cert->dbEntry; + entry->trust = *trust; + + rv = WriteDBCertEntry(handle, entry); + if ( rv ) { + ret = SECFailure; + goto done; + } + + ret = SECSuccess; + +done: + nsslowcert_UnlockCertTrust(cert); + nsslowcert_UnlockDB(handle); + return(ret); +} + + +static SECStatus +nsslowcert_UpdatePermCert(NSSLOWCERTCertDBHandle *dbhandle, + NSSLOWCERTCertificate *cert, char *nickname, NSSLOWCERTCertTrust *trust) +{ + char *oldnn; + certDBEntryCert *entry; + PRBool conflict; + SECStatus ret; + + PORT_Assert(!cert->dbEntry); + + /* don't add a conflicting nickname */ + conflict = nsslowcert_CertNicknameConflict(nickname, &cert->derSubject, + dbhandle); + if ( conflict ) { + ret = SECFailure; + goto done; + } + + /* save old nickname so that we can delete it */ + oldnn = cert->nickname; + + entry = AddCertToPermDB(dbhandle, cert, nickname, trust); + + if ( entry == NULL ) { + ret = SECFailure; + goto done; + } + + pkcs11_freeNickname(oldnn,cert->nicknameSpace); + + cert->nickname = (entry->nickname) ? pkcs11_copyNickname(entry->nickname, + cert->nicknameSpace, sizeof(cert->nicknameSpace)) : NULL; + cert->trust = &entry->trust; + cert->dbEntry = entry; + + ret = SECSuccess; +done: + return(ret); +} + +SECStatus +nsslowcert_AddPermCert(NSSLOWCERTCertDBHandle *dbhandle, + NSSLOWCERTCertificate *cert, char *nickname, NSSLOWCERTCertTrust *trust) +{ + SECStatus ret; + + nsslowcert_LockDB(dbhandle); + + ret = nsslowcert_UpdatePermCert(dbhandle, cert, nickname, trust); + + nsslowcert_UnlockDB(dbhandle); + return(ret); +} + +/* + * Open the certificate database and index databases. Create them if + * they are not there or bad. + */ +SECStatus +nsslowcert_OpenCertDB(NSSLOWCERTCertDBHandle *handle, PRBool readOnly, + const char *appName, const char *prefix, + NSSLOWCERTDBNameFunc namecb, void *cbarg, PRBool openVolatile) +{ + int rv; + + certdb_InitDBLock(handle); + + handle->dbMon = PZ_NewMonitor(nssILockCertDB); + PORT_Assert(handle->dbMon != NULL); + handle->dbVerify = PR_FALSE; + + rv = nsslowcert_OpenPermCertDB(handle, readOnly, appName, prefix, + namecb, cbarg); + if ( rv ) { + goto loser; + } + + return (SECSuccess); + +loser: + + PORT_SetError(SEC_ERROR_BAD_DATABASE); + return(SECFailure); +} + +PRBool +nsslowcert_needDBVerify(NSSLOWCERTCertDBHandle *handle) +{ + if (!handle) return PR_FALSE; + return handle->dbVerify; +} + +void +nsslowcert_setDBVerify(NSSLOWCERTCertDBHandle *handle, PRBool value) +{ + handle->dbVerify = value; +} + + +/* + * Lookup a certificate in the databases. + */ +static NSSLOWCERTCertificate * +FindCertByKey(NSSLOWCERTCertDBHandle *handle, const SECItem *certKey, PRBool lockdb) +{ + NSSLOWCERTCertificate *cert = NULL; + certDBEntryCert *entry; + PRBool locked = PR_FALSE; + + if ( lockdb ) { + locked = PR_TRUE; + nsslowcert_LockDB(handle); + } + + /* find in perm database */ + entry = ReadDBCertEntry(handle, certKey); + + if ( entry == NULL ) { + goto loser; + } + + /* inherit entry */ + cert = DecodeACert(handle, entry); + +loser: + if (cert == NULL) { + if (entry) { + DestroyDBEntry((certDBEntry *)entry); + } + } + + if ( locked ) { + nsslowcert_UnlockDB(handle); + } + + return(cert); +} + +/* + * Lookup a certificate in the databases. + */ +static NSSLOWCERTTrust * +FindTrustByKey(NSSLOWCERTCertDBHandle *handle, const SECItem *certKey, PRBool lockdb) +{ + NSSLOWCERTTrust *trust = NULL; + certDBEntryCert *entry; + PRBool locked = PR_FALSE; + + if ( lockdb ) { + locked = PR_TRUE; + nsslowcert_LockDB(handle); + } + + /* find in perm database */ + entry = ReadDBCertEntry(handle, certKey); + + if ( entry == NULL ) { + goto loser; + } + + if (!nsslowcert_hasTrust(&entry->trust)) { + goto loser; + } + + /* inherit entry */ + trust = DecodeTrustEntry(handle, entry, certKey); + +loser: + if (trust == NULL) { + if (entry) { + DestroyDBEntry((certDBEntry *)entry); + } + } + + if ( locked ) { + nsslowcert_UnlockDB(handle); + } + + return(trust); +} + +/* + * Lookup a certificate in the databases without locking + */ +NSSLOWCERTCertificate * +nsslowcert_FindCertByKey(NSSLOWCERTCertDBHandle *handle, const SECItem *certKey) +{ + return(FindCertByKey(handle, certKey, PR_FALSE)); +} + +/* + * Lookup a trust object in the databases without locking + */ +NSSLOWCERTTrust * +nsslowcert_FindTrustByKey(NSSLOWCERTCertDBHandle *handle, const SECItem *certKey) +{ + return(FindTrustByKey(handle, certKey, PR_FALSE)); +} + +/* + * Generate a key from an issuerAndSerialNumber, and find the + * associated cert in the database. + */ +NSSLOWCERTCertificate * +nsslowcert_FindCertByIssuerAndSN(NSSLOWCERTCertDBHandle *handle, NSSLOWCERTIssuerAndSN *issuerAndSN) +{ + SECItem certKey; + SECItem *sn = &issuerAndSN->serialNumber; + SECItem *issuer = &issuerAndSN->derIssuer; + NSSLOWCERTCertificate *cert; + int data_left = sn->len-1; + int data_len = sn->len; + int index = 0; + + /* automatically detect DER encoded serial numbers and remove the der + * encoding since the database expects unencoded data. + * if it's DER encoded, there must be at least 3 bytes, tag, len, data */ + if ((sn->len >= 3) && (sn->data[0] == 0x2)) { + /* remove the der encoding of the serial number before generating the + * key.. */ + data_left = sn->len-2; + data_len = sn->data[1]; + index = 2; + + /* extended length ? (not very likely for a serial number) */ + if (data_len & 0x80) { + int len_count = data_len & 0x7f; + + data_len = 0; + data_left -= len_count; + if (data_left > 0) { + while (len_count --) { + data_len = (data_len << 8) | sn->data[index++]; + } + } + } + /* XXX leaving any leading zeros on the serial number for backwards + * compatibility + */ + /* not a valid der, must be just an unlucky serial number value */ + if (data_len != data_left) { + data_len = sn->len; + index = 0; + } + } + + certKey.type = 0; + certKey.data = (unsigned char*)PORT_Alloc(sn->len + issuer->len); + certKey.len = data_len + issuer->len; + + if ( certKey.data == NULL ) { + return(0); + } + + /* first try the serial number as hand-decoded above*/ + /* copy the serialNumber */ + PORT_Memcpy(certKey.data, &sn->data[index], data_len); + + /* copy the issuer */ + PORT_Memcpy( &certKey.data[data_len],issuer->data,issuer->len); + + cert = nsslowcert_FindCertByKey(handle, &certKey); + if (cert) { + PORT_Free(certKey.data); + return (cert); + } + + /* didn't find it, try by der encoded serial number */ + /* copy the serialNumber */ + PORT_Memcpy(certKey.data, sn->data, sn->len); + + /* copy the issuer */ + PORT_Memcpy( &certKey.data[sn->len], issuer->data, issuer->len); + certKey.len = sn->len + issuer->len; + + cert = nsslowcert_FindCertByKey(handle, &certKey); + + PORT_Free(certKey.data); + + return(cert); +} + +/* + * Generate a key from an issuerAndSerialNumber, and find the + * associated cert in the database. + */ +NSSLOWCERTTrust * +nsslowcert_FindTrustByIssuerAndSN(NSSLOWCERTCertDBHandle *handle, + NSSLOWCERTIssuerAndSN *issuerAndSN) +{ + SECItem certKey; + SECItem *sn = &issuerAndSN->serialNumber; + SECItem *issuer = &issuerAndSN->derIssuer; + NSSLOWCERTTrust *trust; + unsigned char keyBuf[512]; + int data_left = sn->len-1; + int data_len = sn->len; + int index = 0; + int len; + + /* automatically detect DER encoded serial numbers and remove the der + * encoding since the database expects unencoded data. + * if it's DER encoded, there must be at least 3 bytes, tag, len, data */ + if ((sn->len >= 3) && (sn->data[0] == 0x2)) { + /* remove the der encoding of the serial number before generating the + * key.. */ + data_left = sn->len-2; + data_len = sn->data[1]; + index = 2; + + /* extended length ? (not very likely for a serial number) */ + if (data_len & 0x80) { + int len_count = data_len & 0x7f; + + data_len = 0; + data_left -= len_count; + if (data_left > 0) { + while (len_count --) { + data_len = (data_len << 8) | sn->data[index++]; + } + } + } + /* XXX leaving any leading zeros on the serial number for backwards + * compatibility + */ + /* not a valid der, must be just an unlucky serial number value */ + if (data_len != data_left) { + data_len = sn->len; + index = 0; + } + } + + certKey.type = 0; + certKey.len = data_len + issuer->len; + len = sn->len + issuer->len; + if (len > sizeof (keyBuf)) { + certKey.data = (unsigned char*)PORT_Alloc(len); + } else { + certKey.data = keyBuf; + } + + if ( certKey.data == NULL ) { + return(0); + } + + /* first try the serial number as hand-decoded above*/ + /* copy the serialNumber */ + PORT_Memcpy(certKey.data, &sn->data[index], data_len); + + /* copy the issuer */ + PORT_Memcpy( &certKey.data[data_len],issuer->data,issuer->len); + + trust = nsslowcert_FindTrustByKey(handle, &certKey); + if (trust) { + pkcs11_freeStaticData(certKey.data, keyBuf); + return (trust); + } + + if (index == 0) { + pkcs11_freeStaticData(certKey.data, keyBuf); + return NULL; + } + + /* didn't find it, try by der encoded serial number */ + /* copy the serialNumber */ + PORT_Memcpy(certKey.data, sn->data, sn->len); + + /* copy the issuer */ + PORT_Memcpy( &certKey.data[sn->len], issuer->data, issuer->len); + certKey.len = sn->len + issuer->len; + + trust = nsslowcert_FindTrustByKey(handle, &certKey); + + pkcs11_freeStaticData(certKey.data, keyBuf); + + return(trust); +} + +/* + * look for the given DER certificate in the database + */ +NSSLOWCERTCertificate * +nsslowcert_FindCertByDERCert(NSSLOWCERTCertDBHandle *handle, SECItem *derCert) +{ + PRArenaPool *arena; + SECItem certKey; + SECStatus rv; + NSSLOWCERTCertificate *cert = NULL; + + /* create a scratch arena */ + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + return(NULL); + } + + /* extract the database key from the cert */ + rv = nsslowcert_KeyFromDERCert(arena, derCert, &certKey); + if ( rv != SECSuccess ) { + goto loser; + } + + /* find the certificate */ + cert = nsslowcert_FindCertByKey(handle, &certKey); + +loser: + PORT_FreeArena(arena, PR_FALSE); + return(cert); +} + +static void +DestroyCertificate(NSSLOWCERTCertificate *cert, PRBool lockdb) +{ + int refCount; + NSSLOWCERTCertDBHandle *handle; + + if ( cert ) { + + handle = cert->dbhandle; + + /* + * handle may be NULL, for example if the cert was created with + * nsslowcert_DecodeDERCertificate. + */ + if ( lockdb && handle ) { + nsslowcert_LockDB(handle); + } + + nsslowcert_LockCertRefCount(cert); + PORT_Assert(cert->referenceCount > 0); + refCount = --cert->referenceCount; + nsslowcert_UnlockCertRefCount(cert); + + if ( ( refCount == 0 ) ) { + certDBEntryCert *entry = cert->dbEntry; + + if ( entry ) { + DestroyDBEntry((certDBEntry *)entry); + } + + pkcs11_freeNickname(cert->nickname,cert->nicknameSpace); + pkcs11_freeNickname(cert->emailAddr,cert->emailAddrSpace); + pkcs11_freeStaticData(cert->certKey.data,cert->certKeySpace); + cert->certKey.data = NULL; + cert->nickname = NULL; + + /* zero cert before freeing. Any stale references to this cert + * after this point will probably cause an exception. */ + PORT_Memset(cert, 0, sizeof *cert); + + /* use reflock to protect the free list */ + nsslowcert_LockFreeList(); + if (certListCount > MAX_CERT_LIST_COUNT) { + PORT_Free(cert); + } else { + certListCount++; + cert->next = certListHead; + certListHead = cert; + } + nsslowcert_UnlockFreeList(); + cert = NULL; + } + if ( lockdb && handle ) { + nsslowcert_UnlockDB(handle); + } + } + + return; +} + +NSSLOWCERTCertificate * +nsslowcert_CreateCert(void) +{ + NSSLOWCERTCertificate *cert; + nsslowcert_LockFreeList(); + cert = certListHead; + if (cert) { + certListHead = cert->next; + certListCount--; + } + PORT_Assert(certListCount >= 0); + nsslowcert_UnlockFreeList(); + if (cert) { + return cert; + } + return PORT_ZNew(NSSLOWCERTCertificate); +} + +static void +DestroyCertFreeList(void) +{ + NSSLOWCERTCertificate *cert; + + nsslowcert_LockFreeList(); + while (NULL != (cert = certListHead)) { + certListCount--; + certListHead = cert->next; + PORT_Free(cert); + } + PORT_Assert(!certListCount); + certListCount = 0; + nsslowcert_UnlockFreeList(); +} + +void +nsslowcert_DestroyTrust(NSSLOWCERTTrust *trust) +{ + certDBEntryCert *entry = trust->dbEntry; + + if ( entry ) { + DestroyDBEntry((certDBEntry *)entry); + } + pkcs11_freeStaticData(trust->dbKey.data,trust->dbKeySpace); + PORT_Memset(trust, 0, sizeof(*trust)); + + nsslowcert_LockFreeList(); + if (trustListCount > MAX_TRUST_LIST_COUNT) { + PORT_Free(trust); + } else { + trustListCount++; + trust->next = trustListHead; + trustListHead = trust; + } + nsslowcert_UnlockFreeList(); + + return; +} + +void +nsslowcert_DestroyCertificate(NSSLOWCERTCertificate *cert) +{ + DestroyCertificate(cert, PR_TRUE); + return; +} + +static void +nsslowcert_DestroyCertificateNoLocking(NSSLOWCERTCertificate *cert) +{ + DestroyCertificate(cert, PR_FALSE); + return; +} + +/* + * Lookup a CRL in the databases. We mirror the same fast caching data base + * caching stuff used by certificates....? + */ +certDBEntryRevocation * +nsslowcert_FindCrlByKey(NSSLOWCERTCertDBHandle *handle, + SECItem *crlKey, PRBool isKRL) +{ + SECItem keyitem; + DBT key; + SECStatus rv; + PRArenaPool *arena = NULL; + certDBEntryRevocation *entry = NULL; + certDBEntryType crlType = isKRL ? certDBEntryTypeKeyRevocation + : certDBEntryTypeRevocation; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if ( arena == NULL ) { + goto loser; + } + + rv = EncodeDBGenericKey(crlKey, arena, &keyitem, crlType); + if ( rv != SECSuccess ) { + goto loser; + } + + key.data = keyitem.data; + key.size = keyitem.len; + + /* find in perm database */ + entry = ReadDBCrlEntry(handle, crlKey, crlType); + + if ( entry == NULL ) { + goto loser; + } + +loser: + if ( arena ) { + PORT_FreeArena(arena, PR_FALSE); + } + + return entry; +} + +/* + * replace the existing URL in the data base with a new one + */ +static SECStatus +nsslowcert_UpdateCrl(NSSLOWCERTCertDBHandle *handle, SECItem *derCrl, + SECItem *crlKey, char *url, PRBool isKRL) +{ + SECStatus rv = SECFailure; + certDBEntryRevocation *entry = NULL; + certDBEntryType crlType = isKRL ? certDBEntryTypeKeyRevocation + : certDBEntryTypeRevocation; + DeleteDBCrlEntry(handle, crlKey, crlType); + + /* Write the new entry into the data base */ + entry = NewDBCrlEntry(derCrl, url, crlType, 0); + if (entry == NULL) goto done; + + rv = WriteDBCrlEntry(handle, entry, crlKey); + if (rv != SECSuccess) goto done; + +done: + if (entry) { + DestroyDBEntry((certDBEntry *)entry); + } + return rv; +} + +SECStatus +nsslowcert_AddCrl(NSSLOWCERTCertDBHandle *handle, SECItem *derCrl, + SECItem *crlKey, char *url, PRBool isKRL) +{ + SECStatus rv; + + rv = nsslowcert_UpdateCrl(handle, derCrl, crlKey, url, isKRL); + + return rv; +} + +SECStatus +nsslowcert_DeletePermCRL(NSSLOWCERTCertDBHandle *handle, const SECItem *derName, + PRBool isKRL) +{ + SECStatus rv; + certDBEntryType crlType = isKRL ? certDBEntryTypeKeyRevocation + : certDBEntryTypeRevocation; + + rv = DeleteDBCrlEntry(handle, derName, crlType); + if (rv != SECSuccess) goto done; + +done: + return rv; +} + + +PRBool +nsslowcert_hasTrust(NSSLOWCERTCertTrust *trust) +{ + if (trust == NULL) { + return PR_FALSE; + } + return !((trust->sslFlags & CERTDB_TRUSTED_UNKNOWN) && + (trust->emailFlags & CERTDB_TRUSTED_UNKNOWN) && + (trust->objectSigningFlags & CERTDB_TRUSTED_UNKNOWN)); +} + +/* + * This function has the logic that decides if another person's cert and + * email profile from an S/MIME message should be saved. It can deal with + * the case when there is no profile. + */ +static SECStatus +nsslowcert_UpdateSMimeProfile(NSSLOWCERTCertDBHandle *dbhandle, + char *emailAddr, SECItem *derSubject, SECItem *emailProfile, + SECItem *profileTime) +{ + certDBEntrySMime *entry = NULL; + SECStatus rv = SECFailure;; + + + /* find our existing entry */ + entry = nsslowcert_ReadDBSMimeEntry(dbhandle, emailAddr); + + if ( entry ) { + /* keep our old db entry consistant for old applications. */ + if (!SECITEM_ItemsAreEqual(derSubject, &entry->subjectName)) { + nsslowcert_UpdateSubjectEmailAddr(dbhandle, &entry->subjectName, + emailAddr, nsslowcert_remove); + } + DestroyDBEntry((certDBEntry *)entry); + entry = NULL; + } + + /* now save the entry */ + entry = NewDBSMimeEntry(emailAddr, derSubject, emailProfile, + profileTime, 0); + if ( entry == NULL ) { + rv = SECFailure; + goto loser; + } + + nsslowcert_LockDB(dbhandle); + + rv = DeleteDBSMimeEntry(dbhandle, emailAddr); + /* if delete fails, try to write new entry anyway... */ + + /* link subject entry back here */ + rv = nsslowcert_UpdateSubjectEmailAddr(dbhandle, derSubject, emailAddr, + nsslowcert_add); + if ( rv != SECSuccess ) { + nsslowcert_UnlockDB(dbhandle); + goto loser; + } + + rv = WriteDBSMimeEntry(dbhandle, entry); + if ( rv != SECSuccess ) { + nsslowcert_UnlockDB(dbhandle); + goto loser; + } + + nsslowcert_UnlockDB(dbhandle); + + rv = SECSuccess; + +loser: + if ( entry ) { + DestroyDBEntry((certDBEntry *)entry); + } + return(rv); +} + +SECStatus +nsslowcert_SaveSMimeProfile(NSSLOWCERTCertDBHandle *dbhandle, char *emailAddr, + SECItem *derSubject, SECItem *emailProfile, SECItem *profileTime) +{ + SECStatus rv = SECFailure;; + + + rv = nsslowcert_UpdateSMimeProfile(dbhandle, emailAddr, + derSubject, emailProfile, profileTime); + + return(rv); +} + +void +nsslowcert_DestroyFreeLists(void) +{ + if (freeListLock == NULL) { + return; + } + DestroyCertEntryFreeList(); + DestroyTrustFreeList(); + DestroyCertFreeList(); + PZ_DestroyLock(freeListLock); + freeListLock = NULL; +} + +void +nsslowcert_DestroyGlobalLocks(void) +{ + if (dbLock) { + PZ_DestroyLock(dbLock); + dbLock = NULL; + } + if (certRefCountLock) { + PZ_DestroyLock(certRefCountLock); + certRefCountLock = NULL; + } + if (certTrustLock) { + PZ_DestroyLock(certTrustLock); + certTrustLock = NULL; + } +} + +certDBEntry * +nsslowcert_DecodeAnyDBEntry(SECItem *dbData, const SECItem *dbKey, + certDBEntryType entryType, void *pdata) +{ + PLArenaPool *arena = NULL; + certDBEntry *entry; + SECStatus rv; + SECItem dbEntry; + + + if ((dbData->len < SEC_DB_ENTRY_HEADER_LEN) || (dbKey->len == 0)) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + goto loser; + } + dbEntry.data = &dbData->data[SEC_DB_ENTRY_HEADER_LEN]; + dbEntry.len = dbData->len - SEC_DB_ENTRY_HEADER_LEN; + + arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); + if (arena == NULL) { + goto loser; + } + entry = PORT_ArenaZNew(arena, certDBEntry); + if (!entry) + goto loser; + + entry->common.version = (unsigned int)dbData->data[0]; + entry->common.flags = (unsigned int)dbData->data[2]; + entry->common.type = entryType; + entry->common.arena = arena; + + switch (entryType) { + case certDBEntryTypeContentVersion: /* This type appears to be unused */ + case certDBEntryTypeVersion: /* This type has only the common hdr */ + rv = SECSuccess; + break; + + case certDBEntryTypeSubject: + rv = DecodeDBSubjectEntry(&entry->subject, &dbEntry, dbKey); + break; + + case certDBEntryTypeNickname: + rv = DecodeDBNicknameEntry(&entry->nickname, &dbEntry, + (char *)dbKey->data); + break; + + /* smime profiles need entries created after the certs have + * been imported, loop over them in a second run */ + case certDBEntryTypeSMimeProfile: + rv = DecodeDBSMimeEntry(&entry->smime, &dbEntry, (char *)dbKey->data); + break; + + case certDBEntryTypeCert: + rv = DecodeDBCertEntry(&entry->cert, &dbEntry); + break; + + case certDBEntryTypeKeyRevocation: + case certDBEntryTypeRevocation: + rv = DecodeDBCrlEntry(&entry->revocation, &dbEntry); + break; + + default: + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; + } + + if (rv == SECSuccess) + return entry; + +loser: + if (arena) + PORT_FreeArena(arena, PR_FALSE); + return NULL; +} + |