| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) 1998 - 2007, Daniel Stenberg, <daniel@haxx.se>, et al. |
| * |
| * This software is licensed as described in the file COPYING, which |
| * you should have received as part of this distribution. The terms |
| * are also available at http://curl.haxx.se/docs/copyright.html. |
| * |
| * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| * copies of the Software, and permit persons to whom the Software is |
| * furnished to do so, under the terms of the COPYING file. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| * $Id$ |
| ***************************************************************************/ |
| |
| /* |
| * Source file for all NSS-specific code for the TLS/SSL layer. No code |
| * but sslgen.c should ever call or use these functions. |
| */ |
| |
| #include "setup.h" |
| |
| #include <string.h> |
| #include <stdlib.h> |
| #include <ctype.h> |
| #ifdef HAVE_SYS_SOCKET_H |
| #include <sys/socket.h> |
| #endif |
| |
| #include "urldata.h" |
| #include "sendf.h" |
| #include "formdata.h" /* for the boundary function */ |
| #include "url.h" /* for the ssl config check function */ |
| #include "connect.h" |
| #include "strequal.h" |
| #include "select.h" |
| #include "sslgen.h" |
| |
| #define _MPRINTF_REPLACE /* use the internal *printf() functions */ |
| #include <curl/mprintf.h> |
| |
| #ifdef USE_NSS |
| |
| #include "nssg.h" |
| #include <nspr.h> |
| #include <nss.h> |
| #include <ssl.h> |
| #include <sslerr.h> |
| #include <secerr.h> |
| #include <sslproto.h> |
| #include <prtypes.h> |
| #include <pk11pub.h> |
| |
| #include "memory.h" |
| #include "easyif.h" /* for Curl_convert_from_utf8 prototype */ |
| |
| /* The last #include file should be: */ |
| #include "memdebug.h" |
| |
| #ifndef min |
| #define min(a, b) ((a) < (b) ? (a) : (b)) |
| #endif |
| |
| PRFileDesc *PR_ImportTCPSocket(PRInt32 osfd); |
| |
| static int initialized = 0; |
| static int noverify = 0; |
| |
| #define HANDSHAKE_TIMEOUT 30 |
| |
| typedef struct { |
| PRInt32 retryCount; |
| struct SessionHandle *data; |
| } pphrase_arg_t; |
| |
| typedef struct { |
| const char *name; |
| int num; |
| PRInt32 version; /* protocol version valid for this cipher */ |
| } cipher_s; |
| |
| /* the table itself is defined in nss_engine_init.c */ |
| #ifdef NSS_ENABLE_ECC |
| #define ciphernum 48 |
| #else |
| #define ciphernum 23 |
| #endif |
| |
| enum sslversion { SSL2 = 1, SSL3 = 2, TLS = 4 }; |
| |
| cipher_s cipherlist[ciphernum] = { |
| /* SSL2 cipher suites */ |
| {"rc4", SSL_EN_RC4_128_WITH_MD5, SSL2}, |
| {"rc4export", SSL_EN_RC4_128_EXPORT40_WITH_MD5, SSL2}, |
| {"rc2", SSL_EN_RC2_128_CBC_WITH_MD5, SSL2}, |
| {"rc2export", SSL_EN_RC2_128_CBC_EXPORT40_WITH_MD5, SSL2}, |
| {"des", SSL_EN_DES_64_CBC_WITH_MD5, SSL2}, |
| {"desede3", SSL_EN_DES_192_EDE3_CBC_WITH_MD5, SSL2}, |
| /* SSL3/TLS cipher suites */ |
| {"rsa_rc4_128_md5", SSL_RSA_WITH_RC4_128_MD5, SSL3 | TLS}, |
| {"rsa_rc4_128_sha", SSL_RSA_WITH_RC4_128_SHA, SSL3 | TLS}, |
| {"rsa_3des_sha", SSL_RSA_WITH_3DES_EDE_CBC_SHA, SSL3 | TLS}, |
| {"rsa_des_sha", SSL_RSA_WITH_DES_CBC_SHA, SSL3 | TLS}, |
| {"rsa_rc4_40_md5", SSL_RSA_EXPORT_WITH_RC4_40_MD5, SSL3 | TLS}, |
| {"rsa_rc2_40_md5", SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5, SSL3 | TLS}, |
| {"rsa_null_md5", SSL_RSA_WITH_NULL_MD5, SSL3 | TLS}, |
| {"rsa_null_sha", SSL_RSA_WITH_NULL_SHA, SSL3 | TLS}, |
| {"fips_3des_sha", SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA, SSL3 | TLS}, |
| {"fips_des_sha", SSL_RSA_FIPS_WITH_DES_CBC_SHA, SSL3 | TLS}, |
| {"fortezza", SSL_FORTEZZA_DMS_WITH_FORTEZZA_CBC_SHA, SSL3 | TLS}, |
| {"fortezza_rc4_128_sha", SSL_FORTEZZA_DMS_WITH_RC4_128_SHA, SSL3 | TLS}, |
| {"fortezza_null", SSL_FORTEZZA_DMS_WITH_NULL_SHA, SSL3 | TLS}, |
| /* TLS 1.0: Exportable 56-bit Cipher Suites. */ |
| {"rsa_des_56_sha", TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA, SSL3 | TLS}, |
| {"rsa_rc4_56_sha", TLS_RSA_EXPORT1024_WITH_RC4_56_SHA, SSL3 | TLS}, |
| /* AES ciphers. */ |
| {"rsa_aes_128_sha", TLS_RSA_WITH_AES_128_CBC_SHA, SSL3 | TLS}, |
| {"rsa_aes_256_sha", TLS_RSA_WITH_AES_256_CBC_SHA, SSL3 | TLS}, |
| #ifdef NSS_ENABLE_ECC |
| /* ECC ciphers. */ |
| {"ecdh_ecdsa_null_sha", TLS_ECDH_ECDSA_WITH_NULL_SHA, TLS}, |
| {"ecdh_ecdsa_rc4_128_sha", TLS_ECDH_ECDSA_WITH_RC4_128_SHA, TLS}, |
| {"ecdh_ecdsa_3des_sha", TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS}, |
| {"ecdh_ecdsa_aes_128_sha", TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, TLS}, |
| {"ecdh_ecdsa_aes_256_sha", TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, TLS}, |
| {"ecdhe_ecdsa_null_sha", TLS_ECDHE_ECDSA_WITH_NULL_SHA, TLS}, |
| {"ecdhe_ecdsa_rc4_128_sha", TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS}, |
| {"ecdhe_ecdsa_3des_sha", TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS}, |
| {"ecdhe_ecdsa_aes_128_sha", TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS}, |
| {"ecdhe_ecdsa_aes_256_sha", TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS}, |
| {"ecdh_rsa_null_sha", TLS_ECDH_RSA_WITH_NULL_SHA, TLS}, |
| {"ecdh_rsa_128_sha", TLS_ECDH_RSA_WITH_RC4_128_SHA, TLS}, |
| {"ecdh_rsa_3des_sha", TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, TLS}, |
| {"ecdh_rsa_aes_128_sha", TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS}, |
| {"ecdh_rsa_aes_256_sha", TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, TLS}, |
| {"echde_rsa_null", TLS_ECDHE_RSA_WITH_NULL_SHA, TLS}, |
| {"ecdhe_rsa_rc4_128_sha", TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS}, |
| {"ecdhe_rsa_3des_sha", TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, TLS}, |
| {"ecdhe_rsa_aes_128_sha", TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS}, |
| {"ecdhe_rsa_aes_256_sha", TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS}, |
| {"ecdh_anon_null_sha", TLS_ECDH_anon_WITH_NULL_SHA, TLS}, |
| {"ecdh_anon_rc4_128sha", TLS_ECDH_anon_WITH_RC4_128_SHA, TLS}, |
| {"ecdh_anon_3des_sha", TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA, TLS}, |
| {"ecdh_anon_aes_128_sha", TLS_ECDH_anon_WITH_AES_128_CBC_SHA, TLS}, |
| {"ecdh_anon_aes_256_sha", TLS_ECDH_anon_WITH_AES_256_CBC_SHA, TLS}, |
| #endif |
| }; |
| |
| static SECStatus set_ciphers(struct SessionHandle *data, PRFileDesc * model, |
| char *cipher_list) |
| { |
| int i; |
| PRBool cipher_state[ciphernum]; |
| PRBool found; |
| char *cipher; |
| SECStatus rv; |
| |
| /* First disable all ciphers. This uses a different max value in case |
| * NSS adds more ciphers later we don't want them available by |
| * accident |
| */ |
| for(i=0; i<SSL_NumImplementedCiphers; i++) { |
| SSL_CipherPrefSet(model, SSL_ImplementedCiphers[i], SSL_NOT_ALLOWED); |
| } |
| |
| /* Set every entry in our list to false */ |
| for(i=0; i<ciphernum; i++) { |
| cipher_state[i] = PR_FALSE; |
| } |
| |
| cipher = cipher_list; |
| |
| while(cipher_list && (cipher_list[0])) { |
| while((*cipher) && (ISSPACE(*cipher))) |
| ++cipher; |
| |
| if((cipher_list = strchr(cipher, ','))) { |
| *cipher_list++ = '\0'; |
| } |
| |
| found = PR_FALSE; |
| |
| for(i=0; i<ciphernum; i++) { |
| if(!strcasecmp(cipher, cipherlist[i].name)) { |
| cipher_state[i] = PR_TRUE; |
| found = PR_TRUE; |
| break; |
| } |
| } |
| |
| if(found == PR_FALSE) { |
| char buf[1024]; |
| snprintf(buf, 1024, "Unknown cipher in list: %s", cipher); |
| failf(data, buf); |
| return SECFailure; |
| } |
| |
| if(cipher_list) { |
| cipher = cipher_list; |
| } |
| } |
| |
| /* Finally actually enable the selected ciphers */ |
| for(i=0; i<ciphernum; i++) { |
| rv = SSL_CipherPrefSet(model, cipherlist[i].num, cipher_state[i]); |
| if(rv != SECSuccess) { |
| failf(data, "Unknown cipher in cipher list"); |
| return SECFailure; |
| } |
| } |
| |
| return SECSuccess; |
| } |
| |
| static char * nss_get_password(PK11SlotInfo * slot, PRBool retry, void *arg) |
| { |
| pphrase_arg_t *parg = (pphrase_arg_t *) arg; |
| (void)slot; /* unused */ |
| (void)retry; /* unused */ |
| if(parg->data->set.key_passwd) |
| return (char *)PORT_Strdup((char *)parg->data->set.key_passwd); |
| else |
| return NULL; |
| } |
| |
| static SECStatus nss_Init_Tokens(struct connectdata * conn) |
| { |
| PK11SlotList *slotList; |
| PK11SlotListElement *listEntry; |
| SECStatus ret, status = SECSuccess; |
| pphrase_arg_t *parg; |
| |
| parg = (pphrase_arg_t *) malloc(sizeof(*parg)); |
| parg->retryCount = 0; |
| parg->data = conn->data; |
| |
| PK11_SetPasswordFunc(nss_get_password); |
| |
| slotList = |
| PK11_GetAllTokens(CKM_INVALID_MECHANISM, PR_FALSE, PR_TRUE, NULL); |
| |
| for(listEntry = PK11_GetFirstSafe(slotList); |
| listEntry; listEntry = listEntry->next) { |
| PK11SlotInfo *slot = listEntry->slot; |
| |
| if(PK11_NeedLogin(slot) && PK11_NeedUserInit(slot)) { |
| if(slot == PK11_GetInternalKeySlot()) { |
| failf(conn->data, "The NSS database has not been initialized.\n"); |
| } |
| else { |
| failf(conn->data, "The token %s has not been initialized.", |
| PK11_GetTokenName(slot)); |
| } |
| PK11_FreeSlot(slot); |
| continue; |
| } |
| |
| ret = PK11_Authenticate(slot, PR_TRUE, parg); |
| if(SECSuccess != ret) { |
| status = SECFailure; |
| break; |
| } |
| parg->retryCount = 0; /* reset counter to 0 for the next token */ |
| PK11_FreeSlot(slot); |
| } |
| |
| free(parg); |
| return status; |
| } |
| |
| static SECStatus BadCertHandler(void *arg, PRFileDesc * socket) |
| { |
| SECStatus success = SECSuccess; |
| (void)arg; |
| (void)socket; |
| |
| return success; |
| } |
| |
| /** |
| * Inform the application that the handshake is complete. |
| */ |
| static SECStatus HandshakeCallback(PRFileDesc * socket, void *arg) |
| { |
| (void)socket; |
| (void)arg; |
| return SECSuccess; |
| } |
| |
| /** |
| * |
| * Callback to pick the SSL client certificate. |
| */ |
| static SECStatus SelectClientCert(void *arg, PRFileDesc * socket, |
| struct CERTDistNamesStr * caNames, |
| struct CERTCertificateStr ** pRetCert, |
| struct SECKEYPrivateKeyStr ** pRetKey) |
| { |
| CERTCertificate *cert; |
| SECKEYPrivateKey *privKey; |
| char *nickname = (char *)arg; |
| void *proto_win = NULL; |
| SECStatus secStatus = SECFailure; |
| (void)caNames; |
| |
| proto_win = SSL_RevealPinArg(socket); |
| |
| cert = PK11_FindCertFromNickname(nickname, proto_win); |
| if(cert) { |
| privKey = PK11_FindKeyByAnyCert(cert, proto_win); |
| if(privKey) { |
| secStatus = SECSuccess; |
| } |
| else { |
| CERT_DestroyCertificate(cert); |
| } |
| } |
| |
| if(secStatus == SECSuccess) { |
| *pRetCert = cert; |
| *pRetKey = privKey; |
| } |
| |
| return secStatus; |
| } |
| |
| /** |
| * Global SSL init |
| * |
| * @retval 0 error initializing SSL |
| * @retval 1 SSL initialized successfully |
| */ |
| int Curl_nss_init(void) |
| { |
| if(!initialized) |
| PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 256); |
| |
| /* We will actually initialize NSS later */ |
| |
| return 1; |
| } |
| |
| /* Global cleanup */ |
| void Curl_nss_cleanup(void) |
| { |
| NSS_Shutdown(); |
| initialized = 0; |
| } |
| |
| /* |
| * This function uses SSL_peek to determine connection status. |
| * |
| * Return codes: |
| * 1 means the connection is still in place |
| * 0 means the connection has been closed |
| * -1 means the connection status is unknown |
| */ |
| int |
| Curl_nss_check_cxn(struct connectdata *conn) |
| { |
| int rc; |
| char buf; |
| |
| rc = |
| PR_Recv(conn->ssl[FIRSTSOCKET].handle, (void *)&buf, 1, PR_MSG_PEEK, |
| PR_SecondsToInterval(1)); |
| if(rc > 0) |
| return 1; /* connection still in place */ |
| |
| if(rc == 0) |
| return 0; /* connection has been closed */ |
| |
| return -1; /* connection status unknown */ |
| } |
| |
| /* |
| * This function is called when an SSL connection is closed. |
| */ |
| void Curl_nss_close(struct connectdata *conn) |
| { |
| int i; |
| |
| for(i=0; i<2; i++) { |
| struct ssl_connect_data *connssl = &conn->ssl[i]; |
| |
| if(connssl->handle) { |
| PR_Close(connssl->handle); |
| connssl->handle = NULL; |
| } |
| connssl->use = FALSE; /* get back to ordinary socket usage */ |
| } |
| } |
| |
| /* |
| * This function is called when the 'data' struct is going away. Close |
| * down everything and free all resources! |
| */ |
| int Curl_nss_close_all(struct SessionHandle *data) |
| { |
| (void)data; |
| return 0; |
| } |
| |
| CURLcode Curl_nss_connect(struct connectdata * conn, int sockindex) |
| { |
| PRInt32 err; |
| PRFileDesc *model = NULL; |
| PRBool ssl2, ssl3, tlsv1; |
| struct SessionHandle *data = conn->data; |
| curl_socket_t sockfd = conn->sock[sockindex]; |
| struct ssl_connect_data *connssl = &conn->ssl[sockindex]; |
| SECStatus rv; |
| int curlerr = CURLE_SSL_CONNECT_ERROR; |
| |
| /* FIXME. NSS doesn't support multiple databases open at the same time. */ |
| if(!initialized) { |
| if(!data->set.ssl.CAfile) { |
| if(data->set.ssl.verifypeer) { |
| failf(data, "No NSS cacert database specified."); |
| return CURLE_SSL_CACERT_BADFILE; |
| } |
| else { |
| rv = NSS_NoDB_Init(NULL); |
| noverify = 1; |
| } |
| } |
| else { |
| rv = NSS_Initialize(data->set.ssl.CAfile, NULL, NULL, "secmod.db", |
| NSS_INIT_READONLY); |
| } |
| if(rv != SECSuccess) { |
| curlerr = CURLE_SSL_CACERT_BADFILE; |
| goto error; |
| } |
| } |
| |
| NSS_SetDomesticPolicy(); |
| |
| model = PR_NewTCPSocket(); |
| if(!model) |
| goto error; |
| model = SSL_ImportFD(NULL, model); |
| |
| if(SSL_OptionSet(model, SSL_SECURITY, PR_TRUE) != SECSuccess) |
| goto error; |
| if(SSL_OptionSet(model, SSL_HANDSHAKE_AS_SERVER, PR_FALSE) != SECSuccess) |
| goto error; |
| if(SSL_OptionSet(model, SSL_HANDSHAKE_AS_CLIENT, PR_TRUE) != SECSuccess) |
| goto error; |
| |
| ssl2 = ssl3 = tlsv1 = PR_FALSE; |
| |
| switch (data->set.ssl.version) { |
| default: |
| case CURL_SSLVERSION_DEFAULT: |
| ssl2 = ssl3 = tlsv1 = PR_TRUE; |
| break; |
| case CURL_SSLVERSION_TLSv1: |
| tlsv1 = PR_TRUE; |
| break; |
| case CURL_SSLVERSION_SSLv2: |
| ssl2 = PR_TRUE; |
| break; |
| case CURL_SSLVERSION_SSLv3: |
| ssl3 = PR_TRUE; |
| break; |
| } |
| |
| if(SSL_OptionSet(model, SSL_ENABLE_SSL2, ssl2) != SECSuccess) |
| goto error; |
| if(SSL_OptionSet(model, SSL_ENABLE_SSL3, ssl3) != SECSuccess) |
| goto error; |
| if(SSL_OptionSet(model, SSL_ENABLE_TLS, tlsv1) != SECSuccess) |
| goto error; |
| |
| if(data->set.ssl.cipher_list) { |
| if(set_ciphers(data, model, data->set.ssl.cipher_list) != SECSuccess) |
| goto error; |
| } |
| |
| if(SSL_BadCertHook(model, (SSLBadCertHandler) BadCertHandler, NULL) |
| != SECSuccess) |
| goto error; |
| if(SSL_HandshakeCallback(model, (SSLHandshakeCallback) HandshakeCallback, |
| NULL) != SECSuccess) |
| goto error; |
| |
| if(data->set.cert) { |
| if(SSL_GetClientAuthDataHook(model, |
| (SSLGetClientAuthData) SelectClientCert, |
| (void *)data->set.cert) != SECSuccess) { |
| curlerr = CURLE_SSL_CERTPROBLEM; |
| goto error; |
| } |
| if(nss_Init_Tokens(conn) != SECSuccess) |
| goto error; |
| } |
| |
| /* Import our model socket onto the existing file descriptor */ |
| connssl->handle = PR_ImportTCPSocket(sockfd); |
| connssl->handle = SSL_ImportFD(model, connssl->handle); |
| if(!connssl->handle) |
| goto error; |
| |
| /* Force handshake on next I/O */ |
| SSL_ResetHandshake(connssl->handle, /* asServer */ PR_FALSE); |
| |
| SSL_SetURL(connssl->handle, conn->host.name); |
| |
| /* Force the handshake now */ |
| if (SSL_ForceHandshakeWithTimeout(connssl->handle, |
| PR_SecondsToInterval(HANDSHAKE_TIMEOUT)) |
| != SECSuccess) |
| goto error; |
| |
| return CURLE_OK; |
| |
| error: |
| err = PR_GetError(); |
| failf(data, "NSS error %d", err); |
| if(model) |
| PR_Close(model); |
| return curlerr; |
| } |
| |
| /* return number of sent (non-SSL) bytes */ |
| int Curl_nss_send(struct connectdata *conn, /* connection data */ |
| int sockindex, /* socketindex */ |
| void *mem, /* send this data */ |
| size_t len) /* amount to write */ |
| { |
| PRInt32 err; |
| struct SessionHandle *data = conn->data; |
| PRInt32 timeout; |
| int rc; |
| |
| if(data->set.timeout) |
| timeout = PR_MillisecondsToInterval(data->set.timeout); |
| else |
| timeout = PR_MillisecondsToInterval(DEFAULT_CONNECT_TIMEOUT); |
| |
| rc = PR_Send(conn->ssl[sockindex].handle, mem, (int)len, 0, timeout); |
| |
| if(rc < 0) { |
| err = PR_GetError(); |
| |
| if(err == PR_IO_TIMEOUT_ERROR) { |
| failf(data, "SSL connection timeout"); |
| return CURLE_OPERATION_TIMEOUTED; |
| } |
| |
| failf(conn->data, "SSL write: error %d\n", err); |
| return -1; |
| } |
| return rc; /* number of bytes */ |
| } |
| |
| /* |
| * If the read would block we return -1 and set 'wouldblock' to TRUE. |
| * Otherwise we return the amount of data read. Other errors should return -1 |
| * and set 'wouldblock' to FALSE. |
| */ |
| ssize_t Curl_nss_recv(struct connectdata * conn, /* connection data */ |
| int num, /* socketindex */ |
| char *buf, /* store read data here */ |
| size_t buffersize, /* max amount to read */ |
| bool * wouldblock) |
| { |
| ssize_t nread; |
| struct SessionHandle *data = conn->data; |
| PRInt32 timeout; |
| |
| if(data->set.timeout) |
| timeout = PR_SecondsToInterval(data->set.timeout); |
| else |
| timeout = PR_MillisecondsToInterval(DEFAULT_CONNECT_TIMEOUT); |
| |
| nread = PR_Recv(conn->ssl[num].handle, buf, (int)buffersize, 0, timeout); |
| *wouldblock = FALSE; |
| if(nread < 0) { |
| /* failed SSL read */ |
| PRInt32 err = PR_GetError(); |
| |
| if(err == PR_WOULD_BLOCK_ERROR) { |
| *wouldblock = TRUE; |
| return -1; /* basically EWOULDBLOCK */ |
| } |
| if(err == PR_IO_TIMEOUT_ERROR) { |
| failf(data, "SSL connection timeout"); |
| return CURLE_OPERATION_TIMEOUTED; |
| } |
| failf(conn->data, "SSL read: errno %d", err); |
| return -1; |
| } |
| return nread; |
| } |
| |
| size_t Curl_nss_version(char *buffer, size_t size) |
| { |
| return snprintf(buffer, size, " NSS/%s", NSS_VERSION); |
| } |
| #endif /* USE_NSS */ |