Add m-esr52 at 52.6.0

1 files changed, 912 insertions, 0 deletions

diff --git a/security/nss/lib/softoken/legacydb/lgfind.c b/security/nss/lib/softoken/legacydb/lgfind.c
new file mode 100644
index 000000000..288e56cac
--- /dev/null
+++ b/security/nss/lib/softoken/legacydb/lgfind.c
@@ -0,0 +1,912 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "secitem.h"
+#include "pkcs11.h"
+#include "lgdb.h"
+#include "lowkeyi.h"
+#include "pcert.h"
+#include "blapi.h"
+
+#include "keydbi.h"
+
+/*
+ * This code maps PKCS #11 Finds to legacy database searches. This code
+ * was orginally in pkcs11.c in previous versions of NSS.
+ */
+
+struct SDBFindStr {
+    CK_OBJECT_HANDLE *handles;
+    int size;
+    int index;
+    int array_size;
+};
+
+/*
+ * free a search structure
+ */
+void
+lg_FreeSearch(SDBFind *search)
+{
+    if (search->handles) {
+        PORT_Free(search->handles);
+    }
+    PORT_Free(search);
+}
+
+void
+lg_addHandle(SDBFind *search, CK_OBJECT_HANDLE handle)
+{
+    if (search->handles == NULL) {
+        return;
+    }
+    if (search->size >= search->array_size) {
+        search->array_size += LG_SEARCH_BLOCK_SIZE;
+        search->handles = (CK_OBJECT_HANDLE *)PORT_Realloc(search->handles,
+                                                           sizeof(CK_OBJECT_HANDLE) * search->array_size);
+        if (search->handles == NULL) {
+            return;
+        }
+    }
+    search->handles[search->size] = handle;
+    search->size++;
+}
+
+/*
+ * find any certs that may match the template and load them.
+ */
+#define LG_CERT 0x00000001
+#define LG_TRUST 0x00000002
+#define LG_CRL 0x00000004
+#define LG_SMIME 0x00000008
+#define LG_PRIVATE 0x00000010
+#define LG_PUBLIC 0x00000020
+#define LG_KEY 0x00000040
+
+/*
+ * structure to collect key handles.
+ */
+typedef struct lgEntryDataStr {
+    SDB *sdb;
+    SDBFind *searchHandles;
+    const CK_ATTRIBUTE *template;
+    CK_ULONG templ_count;
+} lgEntryData;
+
+static SECStatus
+lg_crl_collect(SECItem *data, SECItem *key, certDBEntryType type, void *arg)
+{
+    lgEntryData *crlData;
+    CK_OBJECT_HANDLE class_handle;
+    SDB *sdb;
+
+    crlData = (lgEntryData *)arg;
+    sdb = crlData->sdb;
+
+    class_handle = (type == certDBEntryTypeRevocation) ? LG_TOKEN_TYPE_CRL : LG_TOKEN_KRL_HANDLE;
+    if (lg_tokenMatch(sdb, key, class_handle,
+                      crlData->template, crlData->templ_count)) {
+        lg_addHandle(crlData->searchHandles,
+                     lg_mkHandle(sdb, key, class_handle));
+    }
+    return (SECSuccess);
+}
+
+static void
+lg_searchCrls(SDB *sdb, SECItem *derSubject, PRBool isKrl,
+              unsigned long classFlags, SDBFind *search,
+              const CK_ATTRIBUTE *pTemplate, CK_ULONG ulCount)
+{
+    NSSLOWCERTCertDBHandle *certHandle = NULL;
+
+    certHandle = lg_getCertDB(sdb);
+    if (certHandle == NULL) {
+        return;
+    }
+    if (derSubject->data != NULL) {
+        certDBEntryRevocation *crl =
+            nsslowcert_FindCrlByKey(certHandle, derSubject, isKrl);
+
+        if (crl != NULL) {
+            lg_addHandle(search, lg_mkHandle(sdb, derSubject,
+                                             isKrl ? LG_TOKEN_KRL_HANDLE : LG_TOKEN_TYPE_CRL));
+            nsslowcert_DestroyDBEntry((certDBEntry *)crl);
+        }
+    } else {
+        lgEntryData crlData;
+
+        /* traverse */
+        crlData.sdb = sdb;
+        crlData.searchHandles = search;
+        crlData.template = pTemplate;
+        crlData.templ_count = ulCount;
+        nsslowcert_TraverseDBEntries(certHandle, certDBEntryTypeRevocation,
+                                     lg_crl_collect, (void *)&crlData);
+        nsslowcert_TraverseDBEntries(certHandle, certDBEntryTypeKeyRevocation,
+                                     lg_crl_collect, (void *)&crlData);
+    }
+}
+
+/*
+ * structure to collect key handles.
+ */
+typedef struct lgKeyDataStr {
+    SDB *sdb;
+    NSSLOWKEYDBHandle *keyHandle;
+    SDBFind *searchHandles;
+    SECItem *id;
+    const CK_ATTRIBUTE *template;
+    CK_ULONG templ_count;
+    unsigned long classFlags;
+    PRBool strict;
+} lgKeyData;
+
+static PRBool
+isSecretKey(NSSLOWKEYPrivateKey *privKey)
+{
+    if (privKey->keyType == NSSLOWKEYRSAKey &&
+        privKey->u.rsa.publicExponent.len == 1 &&
+        privKey->u.rsa.publicExponent.data[0] == 0)
+        return PR_TRUE;
+
+    return PR_FALSE;
+}
+
+static SECStatus
+lg_key_collect(DBT *key, DBT *data, void *arg)
+{
+    lgKeyData *keyData;
+    NSSLOWKEYPrivateKey *privKey = NULL;
+    SECItem tmpDBKey;
+    SDB *sdb;
+    unsigned long classFlags;
+
+    keyData = (lgKeyData *)arg;
+    sdb = keyData->sdb;
+    classFlags = keyData->classFlags;
+
+    tmpDBKey.data = key->data;
+    tmpDBKey.len = key->size;
+    tmpDBKey.type = siBuffer;
+
+    PORT_Assert(keyData->keyHandle);
+    if (!keyData->strict && keyData->id && keyData->id->data) {
+        SECItem result;
+        PRBool haveMatch = PR_FALSE;
+        unsigned char hashKey[SHA1_LENGTH];
+        result.data = hashKey;
+        result.len = sizeof(hashKey);
+
+        if (keyData->id->len == 0) {
+            /* Make sure this isn't a LG_KEY */
+            privKey = nsslowkey_FindKeyByPublicKey(keyData->keyHandle,
+                                                   &tmpDBKey, keyData->sdb /*->password*/);
+            if (privKey) {
+                /* turn off the unneeded class flags */
+                classFlags &= isSecretKey(privKey) ? ~(LG_PRIVATE | LG_PUBLIC) : ~LG_KEY;
+                haveMatch = (PRBool)((classFlags & (LG_KEY | LG_PRIVATE | LG_PUBLIC)) != 0);
+                lg_nsslowkey_DestroyPrivateKey(privKey);
+            }
+        } else {
+            SHA1_HashBuf(hashKey, key->data, key->size); /* match id */
+            haveMatch = SECITEM_ItemsAreEqual(keyData->id, &result);
+            if (!haveMatch && ((unsigned char *)key->data)[0] == 0) {
+                /* This is a fix for backwards compatibility.  The key
+                 * database indexes private keys by the public key, and
+                 * versions of NSS prior to 3.4 stored the public key as
+                 * a signed integer.  The public key is now treated as an
+                 * unsigned integer, with no leading zero.  In order to
+                 * correctly compute the hash of an old key, it is necessary
+                 * to fallback and detect the leading zero.
+                 */
+                SHA1_HashBuf(hashKey,
+                             (unsigned char *)key->data + 1, key->size - 1);
+                haveMatch = SECITEM_ItemsAreEqual(keyData->id, &result);
+            }
+        }
+        if (haveMatch) {
+            if (classFlags & LG_PRIVATE) {
+                lg_addHandle(keyData->searchHandles,
+                             lg_mkHandle(sdb, &tmpDBKey, LG_TOKEN_TYPE_PRIV));
+            }
+            if (classFlags & LG_PUBLIC) {
+                lg_addHandle(keyData->searchHandles,
+                             lg_mkHandle(sdb, &tmpDBKey, LG_TOKEN_TYPE_PUB));
+            }
+            if (classFlags & LG_KEY) {
+                lg_addHandle(keyData->searchHandles,
+                             lg_mkHandle(sdb, &tmpDBKey, LG_TOKEN_TYPE_KEY));
+            }
+        }
+        return SECSuccess;
+    }
+
+    privKey = nsslowkey_FindKeyByPublicKey(keyData->keyHandle, &tmpDBKey,
+                                           keyData->sdb /*->password*/);
+    if (privKey == NULL) {
+        goto loser;
+    }
+
+    if (isSecretKey(privKey)) {
+        if ((classFlags & LG_KEY) &&
+            lg_tokenMatch(keyData->sdb, &tmpDBKey, LG_TOKEN_TYPE_KEY,
+                          keyData->template, keyData->templ_count)) {
+            lg_addHandle(keyData->searchHandles,
+                         lg_mkHandle(keyData->sdb, &tmpDBKey, LG_TOKEN_TYPE_KEY));
+        }
+    } else {
+        if ((classFlags & LG_PRIVATE) &&
+            lg_tokenMatch(keyData->sdb, &tmpDBKey, LG_TOKEN_TYPE_PRIV,
+                          keyData->template, keyData->templ_count)) {
+            lg_addHandle(keyData->searchHandles,
+                         lg_mkHandle(keyData->sdb, &tmpDBKey, LG_TOKEN_TYPE_PRIV));
+        }
+        if ((classFlags & LG_PUBLIC) &&
+            lg_tokenMatch(keyData->sdb, &tmpDBKey, LG_TOKEN_TYPE_PUB,
+                          keyData->template, keyData->templ_count)) {
+            lg_addHandle(keyData->searchHandles,
+                         lg_mkHandle(keyData->sdb, &tmpDBKey, LG_TOKEN_TYPE_PUB));
+        }
+    }
+
+loser:
+    if (privKey) {
+        lg_nsslowkey_DestroyPrivateKey(privKey);
+    }
+    return (SECSuccess);
+}
+
+static void
+lg_searchKeys(SDB *sdb, SECItem *key_id,
+              unsigned long classFlags, SDBFind *search, PRBool mustStrict,
+              const CK_ATTRIBUTE *pTemplate, CK_ULONG ulCount)
+{
+    NSSLOWKEYDBHandle *keyHandle = NULL;
+    NSSLOWKEYPrivateKey *privKey;
+    lgKeyData keyData;
+    PRBool found = PR_FALSE;
+
+    keyHandle = lg_getKeyDB(sdb);
+    if (keyHandle == NULL) {
+        return;
+    }
+
+    if (key_id->data) {
+        privKey = nsslowkey_FindKeyByPublicKey(keyHandle, key_id, sdb);
+        if (privKey) {
+            if ((classFlags & LG_KEY) && isSecretKey(privKey)) {
+                lg_addHandle(search,
+                             lg_mkHandle(sdb, key_id, LG_TOKEN_TYPE_KEY));
+                found = PR_TRUE;
+            }
+            if ((classFlags & LG_PRIVATE) && !isSecretKey(privKey)) {
+                lg_addHandle(search,
+                             lg_mkHandle(sdb, key_id, LG_TOKEN_TYPE_PRIV));
+                found = PR_TRUE;
+            }
+            if ((classFlags & LG_PUBLIC) && !isSecretKey(privKey)) {
+                lg_addHandle(search,
+                             lg_mkHandle(sdb, key_id, LG_TOKEN_TYPE_PUB));
+                found = PR_TRUE;
+            }
+            lg_nsslowkey_DestroyPrivateKey(privKey);
+        }
+        /* don't do the traversal if we have an up to date db */
+        if (keyHandle->version != 3) {
+            goto loser;
+        }
+        /* don't do the traversal if it can't possibly be the correct id */
+        /* all soft token id's are SHA1_HASH_LEN's */
+        if (key_id->len != SHA1_LENGTH) {
+            goto loser;
+        }
+        if (found) {
+            /* if we already found some keys, don't do the traversal */
+            goto loser;
+        }
+    }
+    keyData.sdb = sdb;
+    keyData.keyHandle = keyHandle;
+    keyData.searchHandles = search;
+    keyData.id = key_id;
+    keyData.template = pTemplate;
+    keyData.templ_count = ulCount;
+    keyData.classFlags = classFlags;
+    keyData.strict = mustStrict ? mustStrict : LG_STRICT;
+
+    nsslowkey_TraverseKeys(keyHandle, lg_key_collect, &keyData);
+
+loser:
+    return;
+}
+
+/*
+ * structure to collect certs into
+ */
+typedef struct lgCertDataStr {
+    SDB *sdb;
+    int cert_count;
+    int max_cert_count;
+    NSSLOWCERTCertificate **certs;
+    const CK_ATTRIBUTE *template;
+    CK_ULONG templ_count;
+    unsigned long classFlags;
+    PRBool strict;
+} lgCertData;
+
+/*
+ * collect all the certs from the traverse call.
+ */
+static SECStatus
+lg_cert_collect(NSSLOWCERTCertificate *cert, void *arg)
+{
+    lgCertData *cd = (lgCertData *)arg;
+
+    if (cert == NULL) {
+        return SECSuccess;
+    }
+
+    if (cd->certs == NULL) {
+        return SECFailure;
+    }
+
+    if (cd->strict) {
+        if ((cd->classFlags & LG_CERT) &&
+            !lg_tokenMatch(cd->sdb, &cert->certKey, LG_TOKEN_TYPE_CERT, cd->template, cd->templ_count)) {
+            return SECSuccess;
+        }
+        if ((cd->classFlags & LG_TRUST) &&
+            !lg_tokenMatch(cd->sdb, &cert->certKey, LG_TOKEN_TYPE_TRUST, cd->template, cd->templ_count)) {
+            return SECSuccess;
+        }
+    }
+
+    /* allocate more space if we need it. This should only happen in
+     * the general traversal case */
+    if (cd->cert_count >= cd->max_cert_count) {
+        int size;
+        cd->max_cert_count += LG_SEARCH_BLOCK_SIZE;
+        size = cd->max_cert_count * sizeof(NSSLOWCERTCertificate *);
+        cd->certs = (NSSLOWCERTCertificate **)PORT_Realloc(cd->certs, size);
+        if (cd->certs == NULL) {
+            return SECFailure;
+        }
+    }
+
+    cd->certs[cd->cert_count++] = nsslowcert_DupCertificate(cert);
+    return SECSuccess;
+}
+
+/* provide impedence matching ... */
+static SECStatus
+lg_cert_collect2(NSSLOWCERTCertificate *cert, SECItem *dymmy, void *arg)
+{
+    return lg_cert_collect(cert, arg);
+}
+
+static void
+lg_searchSingleCert(lgCertData *certData, NSSLOWCERTCertificate *cert)
+{
+    if (cert == NULL) {
+        return;
+    }
+    if (certData->strict &&
+        !lg_tokenMatch(certData->sdb, &cert->certKey, LG_TOKEN_TYPE_CERT,
+                       certData->template, certData->templ_count)) {
+        nsslowcert_DestroyCertificate(cert);
+        return;
+    }
+    certData->certs = (NSSLOWCERTCertificate **)
+        PORT_Alloc(sizeof(NSSLOWCERTCertificate *));
+    if (certData->certs == NULL) {
+        nsslowcert_DestroyCertificate(cert);
+        return;
+    }
+    certData->certs[0] = cert;
+    certData->cert_count = 1;
+}
+
+static void
+lg_CertSetupData(lgCertData *certData, int count)
+{
+    certData->max_cert_count = count;
+
+    if (certData->max_cert_count <= 0) {
+        return;
+    }
+    certData->certs = (NSSLOWCERTCertificate **)
+        PORT_Alloc(count * sizeof(NSSLOWCERTCertificate *));
+    return;
+}
+
+static void
+lg_searchCertsAndTrust(SDB *sdb, SECItem *derCert, SECItem *name,
+                       SECItem *derSubject, NSSLOWCERTIssuerAndSN *issuerSN,
+                       SECItem *email,
+                       unsigned long classFlags, SDBFind *handles,
+                       const CK_ATTRIBUTE *pTemplate, CK_LONG ulCount)
+{
+    NSSLOWCERTCertDBHandle *certHandle = NULL;
+    lgCertData certData;
+    int i;
+
+    certHandle = lg_getCertDB(sdb);
+    if (certHandle == NULL)
+        return;
+
+    certData.sdb = sdb;
+    certData.max_cert_count = 0;
+    certData.certs = NULL;
+    certData.cert_count = 0;
+    certData.template = pTemplate;
+    certData.templ_count = ulCount;
+    certData.classFlags = classFlags;
+    certData.strict = LG_STRICT;
+
+    /*
+     * Find the Cert.
+     */
+    if (derCert->data != NULL) {
+        NSSLOWCERTCertificate *cert =
+            nsslowcert_FindCertByDERCert(certHandle, derCert);
+        lg_searchSingleCert(&certData, cert);
+    } else if (name->data != NULL) {
+        char *tmp_name = (char *)PORT_Alloc(name->len + 1);
+        int count;
+
+        if (tmp_name == NULL) {
+            return;
+        }
+        PORT_Memcpy(tmp_name, name->data, name->len);
+        tmp_name[name->len] = 0;
+
+        count = nsslowcert_NumPermCertsForNickname(certHandle, tmp_name);
+        lg_CertSetupData(&certData, count);
+        nsslowcert_TraversePermCertsForNickname(certHandle, tmp_name,
+                                                lg_cert_collect, &certData);
+        PORT_Free(tmp_name);
+    } else if (derSubject->data != NULL) {
+        int count;
+
+        count = nsslowcert_NumPermCertsForSubject(certHandle, derSubject);
+        lg_CertSetupData(&certData, count);
+        nsslowcert_TraversePermCertsForSubject(certHandle, derSubject,
+                                               lg_cert_collect, &certData);
+    } else if ((issuerSN->derIssuer.data != NULL) &&
+               (issuerSN->serialNumber.data != NULL)) {
+        if (classFlags & LG_CERT) {
+            NSSLOWCERTCertificate *cert =
+                nsslowcert_FindCertByIssuerAndSN(certHandle, issuerSN);
+
+            lg_searchSingleCert(&certData, cert);
+        }
+        if (classFlags & LG_TRUST) {
+            NSSLOWCERTTrust *trust =
+                nsslowcert_FindTrustByIssuerAndSN(certHandle, issuerSN);
+
+            if (trust) {
+                lg_addHandle(handles,
+                             lg_mkHandle(sdb, &trust->dbKey, LG_TOKEN_TYPE_TRUST));
+                nsslowcert_DestroyTrust(trust);
+            }
+        }
+    } else if (email->data != NULL) {
+        char *tmp_name = (char *)PORT_Alloc(email->len + 1);
+        certDBEntrySMime *entry = NULL;
+
+        if (tmp_name == NULL) {
+            return;
+        }
+        PORT_Memcpy(tmp_name, email->data, email->len);
+        tmp_name[email->len] = 0;
+
+        entry = nsslowcert_ReadDBSMimeEntry(certHandle, tmp_name);
+        if (entry) {
+            int count;
+            SECItem *subjectName = &entry->subjectName;
+
+            count = nsslowcert_NumPermCertsForSubject(certHandle, subjectName);
+            lg_CertSetupData(&certData, count);
+            nsslowcert_TraversePermCertsForSubject(certHandle, subjectName,
+                                                   lg_cert_collect, &certData);
+
+            nsslowcert_DestroyDBEntry((certDBEntry *)entry);
+        }
+        PORT_Free(tmp_name);
+    } else {
+        /* we aren't filtering the certs, we are working on all, so turn
+         * on the strict filters. */
+        certData.strict = PR_TRUE;
+        lg_CertSetupData(&certData, LG_SEARCH_BLOCK_SIZE);
+        nsslowcert_TraversePermCerts(certHandle, lg_cert_collect2, &certData);
+    }
+
+    /*
+     * build the handles
+     */
+    for (i = 0; i < certData.cert_count; i++) {
+        NSSLOWCERTCertificate *cert = certData.certs[i];
+
+        /* if we filtered it would have been on the stuff above */
+        if (classFlags & LG_CERT) {
+            lg_addHandle(handles,
+                         lg_mkHandle(sdb, &cert->certKey, LG_TOKEN_TYPE_CERT));
+        }
+        if ((classFlags & LG_TRUST) && nsslowcert_hasTrust(cert->trust)) {
+            lg_addHandle(handles,
+                         lg_mkHandle(sdb, &cert->certKey, LG_TOKEN_TYPE_TRUST));
+        }
+        nsslowcert_DestroyCertificate(cert);
+    }
+
+    if (certData.certs)
+        PORT_Free(certData.certs);
+    return;
+}
+
+static SECStatus
+lg_smime_collect(SECItem *data, SECItem *key, certDBEntryType type, void *arg)
+{
+    lgEntryData *smimeData;
+    SDB *sdb;
+
+    smimeData = (lgEntryData *)arg;
+    sdb = smimeData->sdb;
+
+    if (lg_tokenMatch(sdb, key, LG_TOKEN_TYPE_SMIME,
+                      smimeData->template, smimeData->templ_count)) {
+        lg_addHandle(smimeData->searchHandles,
+                     lg_mkHandle(sdb, key, LG_TOKEN_TYPE_SMIME));
+    }
+    return (SECSuccess);
+}
+
+static void
+lg_searchSMime(SDB *sdb, SECItem *email, SDBFind *handles,
+               const CK_ATTRIBUTE *pTemplate, CK_LONG ulCount)
+{
+    NSSLOWCERTCertDBHandle *certHandle = NULL;
+    certDBEntrySMime *entry;
+
+    certHandle = lg_getCertDB(sdb);
+    if (certHandle == NULL)
+        return;
+
+    if (email->data != NULL) {
+        char *tmp_name = (char *)PORT_Alloc(email->len + 1);
+
+        if (tmp_name == NULL) {
+            return;
+        }
+        PORT_Memcpy(tmp_name, email->data, email->len);
+        tmp_name[email->len] = 0;
+
+        entry = nsslowcert_ReadDBSMimeEntry(certHandle, tmp_name);
+        if (entry) {
+            SECItem emailKey;
+
+            emailKey.data = (unsigned char *)tmp_name;
+            emailKey.len = PORT_Strlen(tmp_name) + 1;
+            emailKey.type = 0;
+            lg_addHandle(handles,
+                         lg_mkHandle(sdb, &emailKey, LG_TOKEN_TYPE_SMIME));
+            nsslowcert_DestroyDBEntry((certDBEntry *)entry);
+        }
+        PORT_Free(tmp_name);
+    } else {
+        /* traverse */
+        lgEntryData smimeData;
+
+        /* traverse */
+        smimeData.sdb = sdb;
+        smimeData.searchHandles = handles;
+        smimeData.template = pTemplate;
+        smimeData.templ_count = ulCount;
+        nsslowcert_TraverseDBEntries(certHandle, certDBEntryTypeSMimeProfile,
+                                     lg_smime_collect, (void *)&smimeData);
+    }
+    return;
+}
+
+static CK_RV
+lg_searchTokenList(SDB *sdb, SDBFind *search,
+                   const CK_ATTRIBUTE *pTemplate, CK_LONG ulCount)
+{
+    int i;
+    PRBool isKrl = PR_FALSE;
+    SECItem derCert = { siBuffer, NULL, 0 };
+    SECItem derSubject = { siBuffer, NULL, 0 };
+    SECItem name = { siBuffer, NULL, 0 };
+    SECItem email = { siBuffer, NULL, 0 };
+    SECItem key_id = { siBuffer, NULL, 0 };
+    SECItem cert_sha1_hash = { siBuffer, NULL, 0 };
+    SECItem cert_md5_hash = { siBuffer, NULL, 0 };
+    NSSLOWCERTIssuerAndSN issuerSN = {
+        { siBuffer, NULL, 0 },
+        { siBuffer, NULL, 0 }
+    };
+    SECItem *copy = NULL;
+    CK_CERTIFICATE_TYPE certType;
+    CK_OBJECT_CLASS objectClass;
+    CK_RV crv;
+    unsigned long classFlags;
+
+    if (lg_getCertDB(sdb) == NULL) {
+        classFlags = LG_PRIVATE | LG_KEY;
+    } else {
+        classFlags = LG_CERT | LG_TRUST | LG_PUBLIC | LG_SMIME | LG_CRL;
+    }
+
+    /*
+     * look for things to search on token objects for. If the right options
+     * are specified, we can use them as direct indeces into the database
+     * (rather than using linear searches. We can also use the attributes to
+     * limit the kinds of objects we are searching for. Later we can use this
+     * array to filter the remaining objects more finely.
+     */
+    for (i = 0; classFlags && i < (int)ulCount; i++) {
+
+        switch (pTemplate[i].type) {
+            case CKA_SUBJECT:
+                copy = &derSubject;
+                classFlags &= (LG_CERT | LG_PRIVATE | LG_PUBLIC | LG_SMIME | LG_CRL);
+                break;
+            case CKA_ISSUER:
+                copy = &issuerSN.derIssuer;
+                classFlags &= (LG_CERT | LG_TRUST);
+                break;
+            case CKA_SERIAL_NUMBER:
+                copy = &issuerSN.serialNumber;
+                classFlags &= (LG_CERT | LG_TRUST);
+                break;
+            case CKA_VALUE:
+                copy = &derCert;
+                classFlags &= (LG_CERT | LG_CRL | LG_SMIME);
+                break;
+            case CKA_LABEL:
+                copy = &name;
+                break;
+            case CKA_NETSCAPE_EMAIL:
+                copy = &email;
+                classFlags &= LG_SMIME | LG_CERT;
+                break;
+            case CKA_NETSCAPE_SMIME_TIMESTAMP:
+                classFlags &= LG_SMIME;
+                break;
+            case CKA_CLASS:
+                crv = lg_GetULongAttribute(CKA_CLASS, &pTemplate[i], 1, &objectClass);
+                if (crv != CKR_OK) {
+                    classFlags = 0;
+                    break;
+                }
+                switch (objectClass) {
+                    case CKO_CERTIFICATE:
+                        classFlags &= LG_CERT;
+                        break;
+                    case CKO_NETSCAPE_TRUST:
+                        classFlags &= LG_TRUST;
+                        break;
+                    case CKO_NETSCAPE_CRL:
+                        classFlags &= LG_CRL;
+                        break;
+                    case CKO_NETSCAPE_SMIME:
+                        classFlags &= LG_SMIME;
+                        break;
+                    case CKO_PRIVATE_KEY:
+                        classFlags &= LG_PRIVATE;
+                        break;
+                    case CKO_PUBLIC_KEY:
+                        classFlags &= LG_PUBLIC;
+                        break;
+                    case CKO_SECRET_KEY:
+                        classFlags &= LG_KEY;
+                        break;
+                    default:
+                        classFlags = 0;
+                        break;
+                }
+                break;
+            case CKA_PRIVATE:
+                if (pTemplate[i].ulValueLen != sizeof(CK_BBOOL)) {
+                    classFlags = 0;
+                    break;
+                }
+                if (*((CK_BBOOL *)pTemplate[i].pValue) == CK_TRUE) {
+                    classFlags &= (LG_PRIVATE | LG_KEY);
+                } else {
+                    classFlags &= ~(LG_PRIVATE | LG_KEY);
+                }
+                break;
+            case CKA_SENSITIVE:
+                if (pTemplate[i].ulValueLen != sizeof(CK_BBOOL)) {
+                    classFlags = 0;
+                    break;
+                }
+                if (*((CK_BBOOL *)pTemplate[i].pValue) == CK_TRUE) {
+                    classFlags &= (LG_PRIVATE | LG_KEY);
+                } else {
+                    classFlags = 0;
+                }
+                break;
+            case CKA_TOKEN:
+                if (pTemplate[i].ulValueLen != sizeof(CK_BBOOL)) {
+                    classFlags = 0;
+                    break;
+                }
+                if (*((CK_BBOOL *)pTemplate[i].pValue) != CK_TRUE) {
+                    classFlags = 0;
+                }
+                break;
+            case CKA_CERT_SHA1_HASH:
+                classFlags &= LG_TRUST;
+                copy = &cert_sha1_hash;
+                break;
+            case CKA_CERT_MD5_HASH:
+                classFlags &= LG_TRUST;
+                copy = &cert_md5_hash;
+                break;
+            case CKA_CERTIFICATE_TYPE:
+                crv = lg_GetULongAttribute(CKA_CERTIFICATE_TYPE, &pTemplate[i],
+                                           1, &certType);
+                if (crv != CKR_OK) {
+                    classFlags = 0;
+                    break;
+                }
+                classFlags &= LG_CERT;
+                if (certType != CKC_X_509) {
+                    classFlags = 0;
+                }
+                break;
+            case CKA_ID:
+                copy = &key_id;
+                classFlags &= (LG_CERT | LG_PRIVATE | LG_KEY | LG_PUBLIC);
+                break;
+            case CKA_NETSCAPE_KRL:
+                if (pTemplate[i].ulValueLen != sizeof(CK_BBOOL)) {
+                    classFlags = 0;
+                    break;
+                }
+                classFlags &= LG_CRL;
+                isKrl = (PRBool)(*((CK_BBOOL *)pTemplate[i].pValue) == CK_TRUE);
+                break;
+            case CKA_MODIFIABLE:
+                break;
+            case CKA_KEY_TYPE:
+            case CKA_DERIVE:
+                classFlags &= LG_PUBLIC | LG_PRIVATE | LG_KEY;
+                break;
+            case CKA_VERIFY_RECOVER:
+                classFlags &= LG_PUBLIC;
+                break;
+            case CKA_SIGN_RECOVER:
+                classFlags &= LG_PRIVATE;
+                break;
+            case CKA_ENCRYPT:
+            case CKA_VERIFY:
+            case CKA_WRAP:
+                classFlags &= LG_PUBLIC | LG_KEY;
+                break;
+            case CKA_DECRYPT:
+            case CKA_SIGN:
+            case CKA_UNWRAP:
+            case CKA_ALWAYS_SENSITIVE:
+            case CKA_EXTRACTABLE:
+            case CKA_NEVER_EXTRACTABLE:
+                classFlags &= LG_PRIVATE | LG_KEY;
+                break;
+            /* can't be a certificate if it doesn't match one of the above
+             * attributes */
+            default:
+                classFlags = 0;
+                break;
+        }
+        if (copy) {
+            copy->data = (unsigned char *)pTemplate[i].pValue;
+            copy->len = pTemplate[i].ulValueLen;
+        }
+        copy = NULL;
+    }
+
+    /* certs */
+    if (classFlags & (LG_CERT | LG_TRUST)) {
+        lg_searchCertsAndTrust(sdb, &derCert, &name, &derSubject,
+                               &issuerSN, &email, classFlags, search,
+                               pTemplate, ulCount);
+    }
+
+    /* keys */
+    if (classFlags & (LG_PRIVATE | LG_PUBLIC | LG_KEY)) {
+        PRBool mustStrict = (name.len != 0);
+        lg_searchKeys(sdb, &key_id, classFlags, search,
+                      mustStrict, pTemplate, ulCount);
+    }
+
+    /* crl's */
+    if (classFlags & LG_CRL) {
+        lg_searchCrls(sdb, &derSubject, isKrl, classFlags, search,
+                      pTemplate, ulCount);
+    }
+    /* Add S/MIME entry stuff */
+    if (classFlags & LG_SMIME) {
+        lg_searchSMime(sdb, &email, search, pTemplate, ulCount);
+    }
+    return CKR_OK;
+}
+
+/* lg_FindObjectsInit initializes a search for token and session objects
+ * that match a template. */
+CK_RV
+lg_FindObjectsInit(SDB *sdb, const CK_ATTRIBUTE *pTemplate,
+                   CK_ULONG ulCount, SDBFind **retSearch)
+{
+    SDBFind *search;
+    CK_RV crv = CKR_OK;
+
+    *retSearch = NULL;
+
+    search = (SDBFind *)PORT_Alloc(sizeof(SDBFind));
+    if (search == NULL) {
+        crv = CKR_HOST_MEMORY;
+        goto loser;
+    }
+    search->handles = (CK_OBJECT_HANDLE *)
+        PORT_Alloc(sizeof(CK_OBJECT_HANDLE) * LG_SEARCH_BLOCK_SIZE);
+    if (search->handles == NULL) {
+        crv = CKR_HOST_MEMORY;
+        goto loser;
+    }
+    search->index = 0;
+    search->size = 0;
+    search->array_size = LG_SEARCH_BLOCK_SIZE;
+    /* FIXME - do we still need to get Login state? */
+
+    crv = lg_searchTokenList(sdb, search, pTemplate, ulCount);
+    if (crv != CKR_OK) {
+        goto loser;
+    }
+
+    *retSearch = search;
+    return CKR_OK;
+
+loser:
+    if (search) {
+        lg_FreeSearch(search);
+    }
+    return crv;
+}
+
+/* lg_FindObjects continues a search for token and session objects
+ * that match a template, obtaining additional object handles. */
+CK_RV
+lg_FindObjects(SDB *sdb, SDBFind *search,
+               CK_OBJECT_HANDLE *phObject, CK_ULONG ulMaxObjectCount,
+               CK_ULONG *pulObjectCount)
+{
+    int transfer;
+    int left;
+
+    *pulObjectCount = 0;
+    left = search->size - search->index;
+    transfer = ((int)ulMaxObjectCount > left) ? left : ulMaxObjectCount;
+    if (transfer > 0) {
+        PORT_Memcpy(phObject, &search->handles[search->index],
+                    transfer * sizeof(CK_OBJECT_HANDLE));
+    } else {
+        *phObject = CK_INVALID_HANDLE;
+    }
+
+    search->index += transfer;
+    *pulObjectCount = transfer;
+    return CKR_OK;
+}
+
+/* lg_FindObjectsFinal finishes a search for token and session objects. */
+CK_RV
+lg_FindObjectsFinal(SDB *lgdb, SDBFind *search)
+{
+
+    if (search != NULL) {
+        lg_FreeSearch(search);
+    }
+    return CKR_OK;
+}