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@@ -1,2551 +0,0 @@
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-/***************************************************************************
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- * _ _ ____ _
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- * Project ___| | | | _ \| |
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- * / __| | | | |_) | |
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- * | (__| |_| | _ <| |___
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- * \___|\___/|_| \_\_____|
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- *
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- * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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- *
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- * This software is licensed as described in the file COPYING, which
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- * you should have received as part of this distribution. The terms
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- * are also available at https://curl.se/docs/copyright.html.
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- *
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- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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- * copies of the Software, and permit persons to whom the Software is
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- * furnished to do so, under the terms of the COPYING file.
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- *
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- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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- * KIND, either express or implied.
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- *
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- * SPDX-License-Identifier: curl
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- *
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- ***************************************************************************/
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-
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-/*
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- * Source file for all NSS-specific code for the TLS/SSL layer. No code
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- * but vtls.c should ever call or use these functions.
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- */
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-
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-#include "curl_setup.h"
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-
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-#ifdef USE_NSS
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-
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-#include "urldata.h"
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-#include "sendf.h"
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-#include "formdata.h" /* for the boundary function */
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-#include "url.h" /* for the ssl config check function */
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-#include "connect.h"
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-#include "strcase.h"
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-#include "select.h"
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-#include "vtls.h"
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-#include "vtls_int.h"
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-#include "llist.h"
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-#include "multiif.h"
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-#include "curl_printf.h"
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-#include "nssg.h"
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-#include <nspr.h>
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-#include <nss.h>
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-#include <ssl.h>
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-#include <sslerr.h>
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-#include <secerr.h>
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-#include <secmod.h>
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-#include <sslproto.h>
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-#include <prtypes.h>
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-#include <pk11pub.h>
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-#include <prio.h>
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-#include <secitem.h>
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-#include <secport.h>
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-#include <certdb.h>
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-#include <base64.h>
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-#include <cert.h>
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-#include <prerror.h>
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-#include <keyhi.h> /* for SECKEY_DestroyPublicKey() */
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-#include <private/pprio.h> /* for PR_ImportTCPSocket */
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-
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-#define NSSVERNUM ((NSS_VMAJOR<<16)|(NSS_VMINOR<<8)|NSS_VPATCH)
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-
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-#if NSSVERNUM >= 0x030f00 /* 3.15.0 */
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-#include <ocsp.h>
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-#endif
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-
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-#include "warnless.h"
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-#include "x509asn1.h"
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-
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-/* The last #include files should be: */
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-#include "curl_memory.h"
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-#include "memdebug.h"
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-
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-#define SSL_DIR "/etc/pki/nssdb"
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-
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-/* enough to fit the string "PEM Token #[0|1]" */
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-#define SLOTSIZE 13
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-
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-struct nss_ssl_backend_data {
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- PRFileDesc *handle;
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- char *client_nickname;
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- struct Curl_easy *data;
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- struct Curl_llist obj_list;
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- PK11GenericObject *obj_clicert;
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-};
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-
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-static PRLock *nss_initlock = NULL;
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-static PRLock *nss_crllock = NULL;
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-static PRLock *nss_findslot_lock = NULL;
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-static PRLock *nss_trustload_lock = NULL;
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-static struct Curl_llist nss_crl_list;
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-static NSSInitContext *nss_context = NULL;
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-static volatile int initialized = 0;
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-
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-/* type used to wrap pointers as list nodes */
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-struct ptr_list_wrap {
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- void *ptr;
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- struct Curl_llist_element node;
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-};
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-
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-struct cipher_s {
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- const char *name;
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- int num;
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-};
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-
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-#define PK11_SETATTRS(_attr, _idx, _type, _val, _len) do { \
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- CK_ATTRIBUTE *ptr = (_attr) + ((_idx)++); \
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- ptr->type = (_type); \
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- ptr->pValue = (_val); \
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- ptr->ulValueLen = (_len); \
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-} while(0)
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-
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-#define CERT_NewTempCertificate __CERT_NewTempCertificate
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-
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-#define NUM_OF_CIPHERS sizeof(cipherlist)/sizeof(cipherlist[0])
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-static const struct cipher_s cipherlist[] = {
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- /* SSL2 cipher suites */
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- {"rc4", SSL_EN_RC4_128_WITH_MD5},
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- {"rc4-md5", SSL_EN_RC4_128_WITH_MD5},
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- {"rc4export", SSL_EN_RC4_128_EXPORT40_WITH_MD5},
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- {"rc2", SSL_EN_RC2_128_CBC_WITH_MD5},
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- {"rc2export", SSL_EN_RC2_128_CBC_EXPORT40_WITH_MD5},
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- {"des", SSL_EN_DES_64_CBC_WITH_MD5},
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- {"desede3", SSL_EN_DES_192_EDE3_CBC_WITH_MD5},
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- /* SSL3/TLS cipher suites */
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- {"rsa_rc4_128_md5", SSL_RSA_WITH_RC4_128_MD5},
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- {"rsa_rc4_128_sha", SSL_RSA_WITH_RC4_128_SHA},
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- {"rsa_3des_sha", SSL_RSA_WITH_3DES_EDE_CBC_SHA},
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- {"rsa_des_sha", SSL_RSA_WITH_DES_CBC_SHA},
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- {"rsa_rc4_40_md5", SSL_RSA_EXPORT_WITH_RC4_40_MD5},
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- {"rsa_rc2_40_md5", SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5},
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- {"rsa_null_md5", SSL_RSA_WITH_NULL_MD5},
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- {"rsa_null_sha", SSL_RSA_WITH_NULL_SHA},
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- {"fips_3des_sha", SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA},
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- {"fips_des_sha", SSL_RSA_FIPS_WITH_DES_CBC_SHA},
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- {"fortezza", SSL_FORTEZZA_DMS_WITH_FORTEZZA_CBC_SHA},
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- {"fortezza_rc4_128_sha", SSL_FORTEZZA_DMS_WITH_RC4_128_SHA},
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- {"fortezza_null", SSL_FORTEZZA_DMS_WITH_NULL_SHA},
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- {"dhe_rsa_3des_sha", SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA},
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- {"dhe_dss_3des_sha", SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA},
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- {"dhe_rsa_des_sha", SSL_DHE_RSA_WITH_DES_CBC_SHA},
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- {"dhe_dss_des_sha", SSL_DHE_DSS_WITH_DES_CBC_SHA},
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- /* TLS 1.0: Exportable 56-bit Cipher Suites. */
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- {"rsa_des_56_sha", TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA},
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- {"rsa_rc4_56_sha", TLS_RSA_EXPORT1024_WITH_RC4_56_SHA},
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- /* Ephemeral DH with RC4 bulk encryption */
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- {"dhe_dss_rc4_128_sha", TLS_DHE_DSS_WITH_RC4_128_SHA},
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- /* AES ciphers. */
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- {"dhe_dss_aes_128_cbc_sha", TLS_DHE_DSS_WITH_AES_128_CBC_SHA},
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- {"dhe_dss_aes_256_cbc_sha", TLS_DHE_DSS_WITH_AES_256_CBC_SHA},
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- {"dhe_rsa_aes_128_cbc_sha", TLS_DHE_RSA_WITH_AES_128_CBC_SHA},
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- {"dhe_rsa_aes_256_cbc_sha", TLS_DHE_RSA_WITH_AES_256_CBC_SHA},
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- {"rsa_aes_128_sha", TLS_RSA_WITH_AES_128_CBC_SHA},
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- {"rsa_aes_256_sha", TLS_RSA_WITH_AES_256_CBC_SHA},
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- /* ECC ciphers. */
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- {"ecdh_ecdsa_null_sha", TLS_ECDH_ECDSA_WITH_NULL_SHA},
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- {"ecdh_ecdsa_rc4_128_sha", TLS_ECDH_ECDSA_WITH_RC4_128_SHA},
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- {"ecdh_ecdsa_3des_sha", TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA},
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- {"ecdh_ecdsa_aes_128_sha", TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA},
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- {"ecdh_ecdsa_aes_256_sha", TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA},
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- {"ecdhe_ecdsa_null_sha", TLS_ECDHE_ECDSA_WITH_NULL_SHA},
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- {"ecdhe_ecdsa_rc4_128_sha", TLS_ECDHE_ECDSA_WITH_RC4_128_SHA},
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- {"ecdhe_ecdsa_3des_sha", TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA},
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- {"ecdhe_ecdsa_aes_128_sha", TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA},
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- {"ecdhe_ecdsa_aes_256_sha", TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA},
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- {"ecdh_rsa_null_sha", TLS_ECDH_RSA_WITH_NULL_SHA},
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- {"ecdh_rsa_128_sha", TLS_ECDH_RSA_WITH_RC4_128_SHA},
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- {"ecdh_rsa_3des_sha", TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA},
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- {"ecdh_rsa_aes_128_sha", TLS_ECDH_RSA_WITH_AES_128_CBC_SHA},
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- {"ecdh_rsa_aes_256_sha", TLS_ECDH_RSA_WITH_AES_256_CBC_SHA},
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- {"ecdhe_rsa_null", TLS_ECDHE_RSA_WITH_NULL_SHA},
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- {"ecdhe_rsa_rc4_128_sha", TLS_ECDHE_RSA_WITH_RC4_128_SHA},
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- {"ecdhe_rsa_3des_sha", TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA},
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- {"ecdhe_rsa_aes_128_sha", TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA},
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- {"ecdhe_rsa_aes_256_sha", TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA},
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- {"ecdh_anon_null_sha", TLS_ECDH_anon_WITH_NULL_SHA},
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- {"ecdh_anon_rc4_128sha", TLS_ECDH_anon_WITH_RC4_128_SHA},
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- {"ecdh_anon_3des_sha", TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA},
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- {"ecdh_anon_aes_128_sha", TLS_ECDH_anon_WITH_AES_128_CBC_SHA},
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- {"ecdh_anon_aes_256_sha", TLS_ECDH_anon_WITH_AES_256_CBC_SHA},
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-#ifdef TLS_RSA_WITH_NULL_SHA256
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- /* new HMAC-SHA256 cipher suites specified in RFC */
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- {"rsa_null_sha_256", TLS_RSA_WITH_NULL_SHA256},
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- {"rsa_aes_128_cbc_sha_256", TLS_RSA_WITH_AES_128_CBC_SHA256},
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- {"rsa_aes_256_cbc_sha_256", TLS_RSA_WITH_AES_256_CBC_SHA256},
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- {"dhe_rsa_aes_128_cbc_sha_256", TLS_DHE_RSA_WITH_AES_128_CBC_SHA256},
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- {"dhe_rsa_aes_256_cbc_sha_256", TLS_DHE_RSA_WITH_AES_256_CBC_SHA256},
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- {"ecdhe_ecdsa_aes_128_cbc_sha_256", TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256},
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- {"ecdhe_rsa_aes_128_cbc_sha_256", TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256},
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-#endif
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-#ifdef TLS_RSA_WITH_AES_128_GCM_SHA256
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- /* AES GCM cipher suites in RFC 5288 and RFC 5289 */
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- {"rsa_aes_128_gcm_sha_256", TLS_RSA_WITH_AES_128_GCM_SHA256},
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- {"dhe_rsa_aes_128_gcm_sha_256", TLS_DHE_RSA_WITH_AES_128_GCM_SHA256},
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- {"dhe_dss_aes_128_gcm_sha_256", TLS_DHE_DSS_WITH_AES_128_GCM_SHA256},
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- {"ecdhe_ecdsa_aes_128_gcm_sha_256", TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
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- {"ecdh_ecdsa_aes_128_gcm_sha_256", TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256},
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- {"ecdhe_rsa_aes_128_gcm_sha_256", TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256},
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- {"ecdh_rsa_aes_128_gcm_sha_256", TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256},
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-#endif
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-#ifdef TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
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- /* cipher suites using SHA384 */
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- {"rsa_aes_256_gcm_sha_384", TLS_RSA_WITH_AES_256_GCM_SHA384},
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- {"dhe_rsa_aes_256_gcm_sha_384", TLS_DHE_RSA_WITH_AES_256_GCM_SHA384},
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- {"dhe_dss_aes_256_gcm_sha_384", TLS_DHE_DSS_WITH_AES_256_GCM_SHA384},
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- {"ecdhe_ecdsa_aes_256_sha_384", TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384},
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- {"ecdhe_rsa_aes_256_sha_384", TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384},
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- {"ecdhe_ecdsa_aes_256_gcm_sha_384", TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384},
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- {"ecdhe_rsa_aes_256_gcm_sha_384", TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384},
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-#endif
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-#ifdef TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256
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- /* chacha20-poly1305 cipher suites */
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- {"ecdhe_rsa_chacha20_poly1305_sha_256",
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- TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256},
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- {"ecdhe_ecdsa_chacha20_poly1305_sha_256",
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- TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256},
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- {"dhe_rsa_chacha20_poly1305_sha_256",
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- TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256},
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-#endif
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-#ifdef TLS_AES_256_GCM_SHA384
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- {"aes_128_gcm_sha_256", TLS_AES_128_GCM_SHA256},
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- {"aes_256_gcm_sha_384", TLS_AES_256_GCM_SHA384},
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- {"chacha20_poly1305_sha_256", TLS_CHACHA20_POLY1305_SHA256},
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-#endif
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-#ifdef TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
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- /* AES CBC cipher suites in RFC 5246. Introduced in NSS release 3.20 */
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- {"dhe_dss_aes_128_sha_256", TLS_DHE_DSS_WITH_AES_128_CBC_SHA256},
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- {"dhe_dss_aes_256_sha_256", TLS_DHE_DSS_WITH_AES_256_CBC_SHA256},
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-#endif
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-#ifdef TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
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- /* Camellia cipher suites in RFC 4132/5932.
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- Introduced in NSS release 3.12 */
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- {"dhe_rsa_camellia_128_sha", TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA},
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- {"dhe_dss_camellia_128_sha", TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA},
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- {"dhe_rsa_camellia_256_sha", TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA},
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- {"dhe_dss_camellia_256_sha", TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA},
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- {"rsa_camellia_128_sha", TLS_RSA_WITH_CAMELLIA_128_CBC_SHA},
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- {"rsa_camellia_256_sha", TLS_RSA_WITH_CAMELLIA_256_CBC_SHA},
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-#endif
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-#ifdef TLS_RSA_WITH_SEED_CBC_SHA
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- /* SEED cipher suite in RFC 4162. Introduced in NSS release 3.12.3 */
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- {"rsa_seed_sha", TLS_RSA_WITH_SEED_CBC_SHA},
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-#endif
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-};
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-
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-#if defined(WIN32)
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-static const char *pem_library = "nsspem.dll";
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-static const char *trust_library = "nssckbi.dll";
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-#elif defined(__APPLE__)
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-static const char *pem_library = "libnsspem.dylib";
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-static const char *trust_library = "libnssckbi.dylib";
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-#else
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-static const char *pem_library = "libnsspem.so";
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-static const char *trust_library = "libnssckbi.so";
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-#endif
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-
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-static SECMODModule *pem_module = NULL;
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-static SECMODModule *trust_module = NULL;
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-
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-/* NSPR I/O layer we use to detect blocking direction during SSL handshake */
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-static PRDescIdentity nspr_io_identity = PR_INVALID_IO_LAYER;
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-static PRIOMethods nspr_io_methods;
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-
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-static const char *nss_error_to_name(PRErrorCode code)
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-{
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- const char *name = PR_ErrorToName(code);
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- if(name)
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- return name;
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-
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- return "unknown error";
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-}
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-
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-static void nss_print_error_message(struct Curl_easy *data, PRUint32 err)
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-{
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- failf(data, "%s", PR_ErrorToString(err, PR_LANGUAGE_I_DEFAULT));
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-}
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-
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-static char *nss_sslver_to_name(PRUint16 nssver)
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-{
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- switch(nssver) {
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- case SSL_LIBRARY_VERSION_2:
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- return strdup("SSLv2");
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- case SSL_LIBRARY_VERSION_3_0:
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- return strdup("SSLv3");
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- case SSL_LIBRARY_VERSION_TLS_1_0:
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- return strdup("TLSv1.0");
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-#ifdef SSL_LIBRARY_VERSION_TLS_1_1
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- case SSL_LIBRARY_VERSION_TLS_1_1:
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- return strdup("TLSv1.1");
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-#endif
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-#ifdef SSL_LIBRARY_VERSION_TLS_1_2
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|
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- case SSL_LIBRARY_VERSION_TLS_1_2:
|
|
|
- return strdup("TLSv1.2");
|
|
|
-#endif
|
|
|
-#ifdef SSL_LIBRARY_VERSION_TLS_1_3
|
|
|
- case SSL_LIBRARY_VERSION_TLS_1_3:
|
|
|
- return strdup("TLSv1.3");
|
|
|
-#endif
|
|
|
- default:
|
|
|
- return curl_maprintf("0x%04x", nssver);
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-/* the longest cipher name this supports */
|
|
|
-#define MAX_CIPHER_LENGTH 128
|
|
|
-
|
|
|
-static SECStatus set_ciphers(struct Curl_easy *data, PRFileDesc *model,
|
|
|
- const char *cipher_list)
|
|
|
-{
|
|
|
- unsigned int i;
|
|
|
- const char *cipher;
|
|
|
-
|
|
|
- /* use accessors to avoid dynamic linking issues after an update of NSS */
|
|
|
- const PRUint16 num_implemented_ciphers = SSL_GetNumImplementedCiphers();
|
|
|
- const PRUint16 *implemented_ciphers = SSL_GetImplementedCiphers();
|
|
|
- if(!implemented_ciphers)
|
|
|
- return SECFailure;
|
|
|
-
|
|
|
- /* 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 < num_implemented_ciphers; i++) {
|
|
|
- SSL_CipherPrefSet(model, implemented_ciphers[i], PR_FALSE);
|
|
|
- }
|
|
|
-
|
|
|
- cipher = cipher_list;
|
|
|
-
|
|
|
- while(cipher && cipher[0]) {
|
|
|
- const char *end;
|
|
|
- char name[MAX_CIPHER_LENGTH + 1];
|
|
|
- size_t len;
|
|
|
- bool found = FALSE;
|
|
|
- while((*cipher) && (ISBLANK(*cipher)))
|
|
|
- ++cipher;
|
|
|
-
|
|
|
- end = strpbrk(cipher, ":, ");
|
|
|
- if(end)
|
|
|
- len = end - cipher;
|
|
|
- else
|
|
|
- len = strlen(cipher);
|
|
|
-
|
|
|
- if(len > MAX_CIPHER_LENGTH) {
|
|
|
- failf(data, "Bad cipher list");
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
- else if(len) {
|
|
|
- memcpy(name, cipher, len);
|
|
|
- name[len] = 0;
|
|
|
-
|
|
|
- for(i = 0; i<NUM_OF_CIPHERS; i++) {
|
|
|
- if(strcasecompare(name, cipherlist[i].name)) {
|
|
|
- /* Enable the selected cipher */
|
|
|
- if(SSL_CipherPrefSet(model, cipherlist[i].num, PR_TRUE) !=
|
|
|
- SECSuccess) {
|
|
|
- failf(data, "cipher-suite not supported by NSS: %s", name);
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
- found = TRUE;
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if(!found && len) {
|
|
|
- failf(data, "Unknown cipher: %s", name);
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
- if(end)
|
|
|
- cipher = ++end;
|
|
|
- else
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- return SECSuccess;
|
|
|
-}
|
|
|
-
|
|
|
-/*
|
|
|
- * Return true if at least one cipher-suite is enabled. Used to determine
|
|
|
- * if we need to call NSS_SetDomesticPolicy() to enable the default ciphers.
|
|
|
- */
|
|
|
-static bool any_cipher_enabled(void)
|
|
|
-{
|
|
|
- unsigned int i;
|
|
|
-
|
|
|
- for(i = 0; i<NUM_OF_CIPHERS; i++) {
|
|
|
- PRInt32 policy = 0;
|
|
|
- SSL_CipherPolicyGet(cipherlist[i].num, &policy);
|
|
|
- if(policy)
|
|
|
- return TRUE;
|
|
|
- }
|
|
|
-
|
|
|
- return FALSE;
|
|
|
-}
|
|
|
-
|
|
|
-/*
|
|
|
- * Determine whether the nickname passed in is a filename that needs to
|
|
|
- * be loaded as a PEM or a regular NSS nickname.
|
|
|
- *
|
|
|
- * returns 1 for a file
|
|
|
- * returns 0 for not a file (NSS nickname)
|
|
|
- */
|
|
|
-static int is_file(const char *filename)
|
|
|
-{
|
|
|
- struct_stat st;
|
|
|
-
|
|
|
- if(!filename)
|
|
|
- return 0;
|
|
|
-
|
|
|
- if(stat(filename, &st) == 0)
|
|
|
- if(S_ISREG(st.st_mode) || S_ISFIFO(st.st_mode) || S_ISCHR(st.st_mode))
|
|
|
- return 1;
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-/* Check if the given string is filename or nickname of a certificate. If the
|
|
|
- * given string is recognized as filename, return NULL. If the given string is
|
|
|
- * recognized as nickname, return a duplicated string. The returned string
|
|
|
- * should be later deallocated using free(). If the OOM failure occurs, we
|
|
|
- * return NULL, too.
|
|
|
- */
|
|
|
-static char *dup_nickname(struct Curl_easy *data, const char *str)
|
|
|
-{
|
|
|
- const char *n;
|
|
|
-
|
|
|
- if(!is_file(str))
|
|
|
- /* no such file exists, use the string as nickname */
|
|
|
- return strdup(str);
|
|
|
-
|
|
|
- /* search the first slash; we require at least one slash in a file name */
|
|
|
- n = strchr(str, '/');
|
|
|
- if(!n) {
|
|
|
- infof(data, "WARNING: certificate file name \"%s\" handled as nickname; "
|
|
|
- "please use \"./%s\" to force file name", str, str);
|
|
|
- return strdup(str);
|
|
|
- }
|
|
|
-
|
|
|
- /* we'll use the PEM reader to read the certificate from file */
|
|
|
- return NULL;
|
|
|
-}
|
|
|
-
|
|
|
-/* Lock/unlock wrapper for PK11_FindSlotByName() to work around race condition
|
|
|
- * in nssSlot_IsTokenPresent() causing spurious SEC_ERROR_NO_TOKEN. For more
|
|
|
- * details, go to <https://bugzilla.mozilla.org/1297397>.
|
|
|
- */
|
|
|
-static PK11SlotInfo* nss_find_slot_by_name(const char *slot_name)
|
|
|
-{
|
|
|
- PK11SlotInfo *slot;
|
|
|
- PR_Lock(nss_findslot_lock);
|
|
|
- slot = PK11_FindSlotByName(slot_name);
|
|
|
- PR_Unlock(nss_findslot_lock);
|
|
|
- return slot;
|
|
|
-}
|
|
|
-
|
|
|
-/* wrap 'ptr' as list node and tail-insert into 'list' */
|
|
|
-static CURLcode insert_wrapped_ptr(struct Curl_llist *list, void *ptr)
|
|
|
-{
|
|
|
- struct ptr_list_wrap *wrap = malloc(sizeof(*wrap));
|
|
|
- if(!wrap)
|
|
|
- return CURLE_OUT_OF_MEMORY;
|
|
|
-
|
|
|
- wrap->ptr = ptr;
|
|
|
- Curl_llist_insert_next(list, list->tail, wrap, &wrap->node);
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-/* Call PK11_CreateGenericObject() with the given obj_class and filename. If
|
|
|
- * the call succeeds, append the object handle to the list of objects so that
|
|
|
- * the object can be destroyed in nss_close(). */
|
|
|
-static CURLcode nss_create_object(struct ssl_connect_data *connssl,
|
|
|
- CK_OBJECT_CLASS obj_class,
|
|
|
- const char *filename, bool cacert)
|
|
|
-{
|
|
|
- PK11SlotInfo *slot;
|
|
|
- PK11GenericObject *obj;
|
|
|
- CK_BBOOL cktrue = CK_TRUE;
|
|
|
- CK_BBOOL ckfalse = CK_FALSE;
|
|
|
- CK_ATTRIBUTE attrs[/* max count of attributes */ 4];
|
|
|
- int attr_cnt = 0;
|
|
|
- CURLcode result = (cacert)
|
|
|
- ? CURLE_SSL_CACERT_BADFILE
|
|
|
- : CURLE_SSL_CERTPROBLEM;
|
|
|
-
|
|
|
- const int slot_id = (cacert) ? 0 : 1;
|
|
|
- char *slot_name = aprintf("PEM Token #%d", slot_id);
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
-
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- if(!slot_name)
|
|
|
- return CURLE_OUT_OF_MEMORY;
|
|
|
-
|
|
|
- slot = nss_find_slot_by_name(slot_name);
|
|
|
- free(slot_name);
|
|
|
- if(!slot)
|
|
|
- return result;
|
|
|
-
|
|
|
- PK11_SETATTRS(attrs, attr_cnt, CKA_CLASS, &obj_class, sizeof(obj_class));
|
|
|
- PK11_SETATTRS(attrs, attr_cnt, CKA_TOKEN, &cktrue, sizeof(CK_BBOOL));
|
|
|
- PK11_SETATTRS(attrs, attr_cnt, CKA_LABEL, (unsigned char *)filename,
|
|
|
- (CK_ULONG)strlen(filename) + 1);
|
|
|
-
|
|
|
- if(CKO_CERTIFICATE == obj_class) {
|
|
|
- CK_BBOOL *pval = (cacert) ? (&cktrue) : (&ckfalse);
|
|
|
- PK11_SETATTRS(attrs, attr_cnt, CKA_TRUST, pval, sizeof(*pval));
|
|
|
- }
|
|
|
-
|
|
|
- /* PK11_CreateManagedGenericObject() was introduced in NSS 3.34 because
|
|
|
- * PK11_DestroyGenericObject() does not release resources allocated by
|
|
|
- * PK11_CreateGenericObject() early enough. */
|
|
|
- obj =
|
|
|
-#ifdef HAVE_PK11_CREATEMANAGEDGENERICOBJECT
|
|
|
- PK11_CreateManagedGenericObject
|
|
|
-#else
|
|
|
- PK11_CreateGenericObject
|
|
|
-#endif
|
|
|
- (slot, attrs, attr_cnt, PR_FALSE);
|
|
|
-
|
|
|
- PK11_FreeSlot(slot);
|
|
|
- if(!obj)
|
|
|
- return result;
|
|
|
-
|
|
|
- if(insert_wrapped_ptr(&backend->obj_list, obj) != CURLE_OK) {
|
|
|
- PK11_DestroyGenericObject(obj);
|
|
|
- return CURLE_OUT_OF_MEMORY;
|
|
|
- }
|
|
|
-
|
|
|
- if(!cacert && CKO_CERTIFICATE == obj_class)
|
|
|
- /* store reference to a client certificate */
|
|
|
- backend->obj_clicert = obj;
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-/* Destroy the NSS object whose handle is given by ptr. This function is
|
|
|
- * a callback of Curl_llist_alloc() used by Curl_llist_destroy() to destroy
|
|
|
- * NSS objects in nss_close() */
|
|
|
-static void nss_destroy_object(void *user, void *ptr)
|
|
|
-{
|
|
|
- struct ptr_list_wrap *wrap = (struct ptr_list_wrap *) ptr;
|
|
|
- PK11GenericObject *obj = (PK11GenericObject *) wrap->ptr;
|
|
|
- (void) user;
|
|
|
- PK11_DestroyGenericObject(obj);
|
|
|
- free(wrap);
|
|
|
-}
|
|
|
-
|
|
|
-/* same as nss_destroy_object() but for CRL items */
|
|
|
-static void nss_destroy_crl_item(void *user, void *ptr)
|
|
|
-{
|
|
|
- struct ptr_list_wrap *wrap = (struct ptr_list_wrap *) ptr;
|
|
|
- SECItem *crl_der = (SECItem *) wrap->ptr;
|
|
|
- (void) user;
|
|
|
- SECITEM_FreeItem(crl_der, PR_TRUE);
|
|
|
- free(wrap);
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_load_cert(struct ssl_connect_data *ssl,
|
|
|
- const char *filename, PRBool cacert)
|
|
|
-{
|
|
|
- CURLcode result = (cacert)
|
|
|
- ? CURLE_SSL_CACERT_BADFILE
|
|
|
- : CURLE_SSL_CERTPROBLEM;
|
|
|
-
|
|
|
- /* libnsspem.so leaks memory if the requested file does not exist. For more
|
|
|
- * details, go to <https://bugzilla.redhat.com/734760>. */
|
|
|
- if(is_file(filename))
|
|
|
- result = nss_create_object(ssl, CKO_CERTIFICATE, filename, cacert);
|
|
|
-
|
|
|
- if(!result && !cacert) {
|
|
|
- /* we have successfully loaded a client certificate */
|
|
|
- char *nickname = NULL;
|
|
|
- char *n = strrchr(filename, '/');
|
|
|
- if(n)
|
|
|
- n++;
|
|
|
-
|
|
|
- /* The following undocumented magic helps to avoid a SIGSEGV on call
|
|
|
- * of PK11_ReadRawAttribute() from SelectClientCert() when using an
|
|
|
- * immature version of libnsspem.so. For more details, go to
|
|
|
- * <https://bugzilla.redhat.com/733685>. */
|
|
|
- nickname = aprintf("PEM Token #1:%s", n);
|
|
|
- if(nickname) {
|
|
|
- CERTCertificate *cert = PK11_FindCertFromNickname(nickname, NULL);
|
|
|
- if(cert)
|
|
|
- CERT_DestroyCertificate(cert);
|
|
|
-
|
|
|
- free(nickname);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return result;
|
|
|
-}
|
|
|
-
|
|
|
-/* add given CRL to cache if it is not already there */
|
|
|
-static CURLcode nss_cache_crl(SECItem *crl_der)
|
|
|
-{
|
|
|
- CERTCertDBHandle *db = CERT_GetDefaultCertDB();
|
|
|
- CERTSignedCrl *crl = SEC_FindCrlByDERCert(db, crl_der, 0);
|
|
|
- if(crl) {
|
|
|
- /* CRL already cached */
|
|
|
- SEC_DestroyCrl(crl);
|
|
|
- SECITEM_FreeItem(crl_der, PR_TRUE);
|
|
|
- return CURLE_OK;
|
|
|
- }
|
|
|
-
|
|
|
- /* acquire lock before call of CERT_CacheCRL() and accessing nss_crl_list */
|
|
|
- PR_Lock(nss_crllock);
|
|
|
-
|
|
|
- if(SECSuccess != CERT_CacheCRL(db, crl_der)) {
|
|
|
- /* unable to cache CRL */
|
|
|
- SECITEM_FreeItem(crl_der, PR_TRUE);
|
|
|
- PR_Unlock(nss_crllock);
|
|
|
- return CURLE_SSL_CRL_BADFILE;
|
|
|
- }
|
|
|
-
|
|
|
- /* store the CRL item so that we can free it in nss_cleanup() */
|
|
|
- if(insert_wrapped_ptr(&nss_crl_list, crl_der) != CURLE_OK) {
|
|
|
- if(SECSuccess == CERT_UncacheCRL(db, crl_der))
|
|
|
- SECITEM_FreeItem(crl_der, PR_TRUE);
|
|
|
- PR_Unlock(nss_crllock);
|
|
|
- return CURLE_OUT_OF_MEMORY;
|
|
|
- }
|
|
|
-
|
|
|
- /* we need to clear session cache, so that the CRL could take effect */
|
|
|
- SSL_ClearSessionCache();
|
|
|
- PR_Unlock(nss_crllock);
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_load_crl(const char *crlfilename)
|
|
|
-{
|
|
|
- PRFileDesc *infile;
|
|
|
- PRFileInfo info;
|
|
|
- SECItem filedata = { 0, NULL, 0 };
|
|
|
- SECItem *crl_der = NULL;
|
|
|
- char *body;
|
|
|
-
|
|
|
- infile = PR_Open(crlfilename, PR_RDONLY, 0);
|
|
|
- if(!infile)
|
|
|
- return CURLE_SSL_CRL_BADFILE;
|
|
|
-
|
|
|
- if(PR_SUCCESS != PR_GetOpenFileInfo(infile, &info))
|
|
|
- goto fail;
|
|
|
-
|
|
|
- if(!SECITEM_AllocItem(NULL, &filedata, info.size + /* zero ended */ 1))
|
|
|
- goto fail;
|
|
|
-
|
|
|
- if(info.size != PR_Read(infile, filedata.data, info.size))
|
|
|
- goto fail;
|
|
|
-
|
|
|
- crl_der = SECITEM_AllocItem(NULL, NULL, 0U);
|
|
|
- if(!crl_der)
|
|
|
- goto fail;
|
|
|
-
|
|
|
- /* place a trailing zero right after the visible data */
|
|
|
- body = (char *)filedata.data;
|
|
|
- body[--filedata.len] = '\0';
|
|
|
-
|
|
|
- body = strstr(body, "-----BEGIN");
|
|
|
- if(body) {
|
|
|
- /* assume ASCII */
|
|
|
- char *trailer;
|
|
|
- char *begin = PORT_Strchr(body, '\n');
|
|
|
- if(!begin)
|
|
|
- begin = PORT_Strchr(body, '\r');
|
|
|
- if(!begin)
|
|
|
- goto fail;
|
|
|
-
|
|
|
- trailer = strstr(++begin, "-----END");
|
|
|
- if(!trailer)
|
|
|
- goto fail;
|
|
|
-
|
|
|
- /* retrieve DER from ASCII */
|
|
|
- *trailer = '\0';
|
|
|
- if(ATOB_ConvertAsciiToItem(crl_der, begin))
|
|
|
- goto fail;
|
|
|
-
|
|
|
- SECITEM_FreeItem(&filedata, PR_FALSE);
|
|
|
- }
|
|
|
- else
|
|
|
- /* assume DER */
|
|
|
- *crl_der = filedata;
|
|
|
-
|
|
|
- PR_Close(infile);
|
|
|
- return nss_cache_crl(crl_der);
|
|
|
-
|
|
|
-fail:
|
|
|
- PR_Close(infile);
|
|
|
- SECITEM_FreeItem(crl_der, PR_TRUE);
|
|
|
- SECITEM_FreeItem(&filedata, PR_FALSE);
|
|
|
- return CURLE_SSL_CRL_BADFILE;
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_load_key(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data,
|
|
|
- char *key_file)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct ssl_config_data *ssl_config = Curl_ssl_cf_get_config(cf, data);
|
|
|
- PK11SlotInfo *slot, *tmp;
|
|
|
- SECStatus status;
|
|
|
- CURLcode result;
|
|
|
-
|
|
|
- (void)data;
|
|
|
- result = nss_create_object(connssl, CKO_PRIVATE_KEY, key_file, FALSE);
|
|
|
- if(result) {
|
|
|
- PR_SetError(SEC_ERROR_BAD_KEY, 0);
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
- slot = nss_find_slot_by_name("PEM Token #1");
|
|
|
- if(!slot)
|
|
|
- return CURLE_SSL_CERTPROBLEM;
|
|
|
-
|
|
|
- /* This will force the token to be seen as re-inserted */
|
|
|
- tmp = SECMOD_WaitForAnyTokenEvent(pem_module, 0, 0);
|
|
|
- if(tmp)
|
|
|
- PK11_FreeSlot(tmp);
|
|
|
- if(!PK11_IsPresent(slot)) {
|
|
|
- PK11_FreeSlot(slot);
|
|
|
- return CURLE_SSL_CERTPROBLEM;
|
|
|
- }
|
|
|
-
|
|
|
- status = PK11_Authenticate(slot, PR_TRUE, ssl_config->key_passwd);
|
|
|
- PK11_FreeSlot(slot);
|
|
|
-
|
|
|
- return (SECSuccess == status) ? CURLE_OK : CURLE_SSL_CERTPROBLEM;
|
|
|
-}
|
|
|
-
|
|
|
-static int display_error(struct Curl_easy *data, PRInt32 err,
|
|
|
- const char *filename)
|
|
|
-{
|
|
|
- switch(err) {
|
|
|
- case SEC_ERROR_BAD_PASSWORD:
|
|
|
- failf(data, "Unable to load client key: Incorrect password");
|
|
|
- return 1;
|
|
|
- case SEC_ERROR_UNKNOWN_CERT:
|
|
|
- failf(data, "Unable to load certificate %s", filename);
|
|
|
- return 1;
|
|
|
- default:
|
|
|
- break;
|
|
|
- }
|
|
|
- return 0; /* The caller will print a generic error */
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode cert_stuff(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data,
|
|
|
- char *cert_file, char *key_file)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- CURLcode result;
|
|
|
-
|
|
|
- if(cert_file) {
|
|
|
- result = nss_load_cert(connssl, cert_file, PR_FALSE);
|
|
|
- if(result) {
|
|
|
- const PRErrorCode err = PR_GetError();
|
|
|
- if(!display_error(data, err, cert_file)) {
|
|
|
- const char *err_name = nss_error_to_name(err);
|
|
|
- failf(data, "unable to load client cert: %d (%s)", err, err_name);
|
|
|
- }
|
|
|
-
|
|
|
- return result;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if(key_file || (is_file(cert_file))) {
|
|
|
- if(key_file)
|
|
|
- result = nss_load_key(cf, data, key_file);
|
|
|
- else
|
|
|
- /* In case the cert file also has the key */
|
|
|
- result = nss_load_key(cf, data, cert_file);
|
|
|
- if(result) {
|
|
|
- const PRErrorCode err = PR_GetError();
|
|
|
- if(!display_error(data, err, key_file)) {
|
|
|
- const char *err_name = nss_error_to_name(err);
|
|
|
- failf(data, "unable to load client key: %d (%s)", err, err_name);
|
|
|
- }
|
|
|
-
|
|
|
- return result;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-static char *nss_get_password(PK11SlotInfo *slot, PRBool retry, void *arg)
|
|
|
-{
|
|
|
- (void)slot; /* unused */
|
|
|
-
|
|
|
- if(retry || !arg)
|
|
|
- return NULL;
|
|
|
- else
|
|
|
- return (char *)PORT_Strdup((char *)arg);
|
|
|
-}
|
|
|
-
|
|
|
-/* bypass the default SSL_AuthCertificate() hook in case we do not want to
|
|
|
- * verify peer */
|
|
|
-static SECStatus nss_auth_cert_hook(void *arg, PRFileDesc *fd, PRBool checksig,
|
|
|
- PRBool isServer)
|
|
|
-{
|
|
|
- struct Curl_cfilter *cf = (struct Curl_cfilter *)arg;
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct ssl_primary_config *conn_config = Curl_ssl_cf_get_primary_config(cf);
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- struct Curl_easy *data = backend->data;
|
|
|
-
|
|
|
- DEBUGASSERT(data);
|
|
|
-#ifdef SSL_ENABLE_OCSP_STAPLING
|
|
|
- if(conn_config->verifystatus) {
|
|
|
- SECStatus cacheResult;
|
|
|
-
|
|
|
- const SECItemArray *csa = SSL_PeerStapledOCSPResponses(fd);
|
|
|
- if(!csa) {
|
|
|
- failf(data, "Invalid OCSP response");
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
-
|
|
|
- if(csa->len == 0) {
|
|
|
- failf(data, "No OCSP response received");
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
-
|
|
|
- cacheResult = CERT_CacheOCSPResponseFromSideChannel(
|
|
|
- CERT_GetDefaultCertDB(), SSL_PeerCertificate(fd),
|
|
|
- PR_Now(), &csa->items[0], arg
|
|
|
- );
|
|
|
-
|
|
|
- if(cacheResult != SECSuccess) {
|
|
|
- failf(data, "Invalid OCSP response");
|
|
|
- return cacheResult;
|
|
|
- }
|
|
|
- }
|
|
|
-#endif
|
|
|
-
|
|
|
- if(!conn_config->verifypeer) {
|
|
|
- infof(data, "skipping SSL peer certificate verification");
|
|
|
- return SECSuccess;
|
|
|
- }
|
|
|
-
|
|
|
- return SSL_AuthCertificate(CERT_GetDefaultCertDB(), fd, checksig, isServer);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * Inform the application that the handshake is complete.
|
|
|
- */
|
|
|
-static void HandshakeCallback(PRFileDesc *sock, void *arg)
|
|
|
-{
|
|
|
- struct Curl_cfilter *cf = (struct Curl_cfilter *)arg;
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- struct Curl_easy *data = backend->data;
|
|
|
- unsigned int buflenmax = 50;
|
|
|
- unsigned char buf[50];
|
|
|
- unsigned int buflen;
|
|
|
- SSLNextProtoState state;
|
|
|
-
|
|
|
- DEBUGASSERT(data);
|
|
|
- if(!connssl->alpn) {
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- if(SSL_GetNextProto(sock, &state, buf, &buflen, buflenmax) == SECSuccess) {
|
|
|
-
|
|
|
- switch(state) {
|
|
|
-#if NSSVERNUM >= 0x031a00 /* 3.26.0 */
|
|
|
- /* used by NSS internally to implement 0-RTT */
|
|
|
- case SSL_NEXT_PROTO_EARLY_VALUE:
|
|
|
- /* fall through! */
|
|
|
-#endif
|
|
|
- case SSL_NEXT_PROTO_NO_SUPPORT:
|
|
|
- case SSL_NEXT_PROTO_NO_OVERLAP:
|
|
|
- Curl_alpn_set_negotiated(cf, data, NULL, 0);
|
|
|
- return;
|
|
|
-#ifdef SSL_ENABLE_ALPN
|
|
|
- case SSL_NEXT_PROTO_SELECTED:
|
|
|
- Curl_alpn_set_negotiated(cf, data, buf, buflen);
|
|
|
- break;
|
|
|
-#endif
|
|
|
- default:
|
|
|
- /* ignore SSL_NEXT_PROTO_NEGOTIATED */
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-#if NSSVERNUM >= 0x030f04 /* 3.15.4 */
|
|
|
-static SECStatus CanFalseStartCallback(PRFileDesc *sock, void *client_data,
|
|
|
- PRBool *canFalseStart)
|
|
|
-{
|
|
|
- struct Curl_easy *data = (struct Curl_easy *)client_data;
|
|
|
-
|
|
|
- SSLChannelInfo channelInfo;
|
|
|
- SSLCipherSuiteInfo cipherInfo;
|
|
|
-
|
|
|
- SECStatus rv;
|
|
|
- PRBool negotiatedExtension;
|
|
|
-
|
|
|
- *canFalseStart = PR_FALSE;
|
|
|
-
|
|
|
- if(SSL_GetChannelInfo(sock, &channelInfo, sizeof(channelInfo)) != SECSuccess)
|
|
|
- return SECFailure;
|
|
|
-
|
|
|
- if(SSL_GetCipherSuiteInfo(channelInfo.cipherSuite, &cipherInfo,
|
|
|
- sizeof(cipherInfo)) != SECSuccess)
|
|
|
- return SECFailure;
|
|
|
-
|
|
|
- /* Prevent version downgrade attacks from TLS 1.2, and avoid False Start for
|
|
|
- * TLS 1.3 and later. See https://bugzilla.mozilla.org/show_bug.cgi?id=861310
|
|
|
- */
|
|
|
- if(channelInfo.protocolVersion != SSL_LIBRARY_VERSION_TLS_1_2)
|
|
|
- goto end;
|
|
|
-
|
|
|
- /* Only allow ECDHE key exchange algorithm.
|
|
|
- * See https://bugzilla.mozilla.org/show_bug.cgi?id=952863 */
|
|
|
- if(cipherInfo.keaType != ssl_kea_ecdh)
|
|
|
- goto end;
|
|
|
-
|
|
|
- /* Prevent downgrade attacks on the symmetric cipher. We do not allow CBC
|
|
|
- * mode due to BEAST, POODLE, and other attacks on the MAC-then-Encrypt
|
|
|
- * design. See https://bugzilla.mozilla.org/show_bug.cgi?id=1109766 */
|
|
|
- if(cipherInfo.symCipher != ssl_calg_aes_gcm)
|
|
|
- goto end;
|
|
|
-
|
|
|
- /* Enforce ALPN to do False Start, as an indicator of server
|
|
|
- compatibility. */
|
|
|
- rv = SSL_HandshakeNegotiatedExtension(sock, ssl_app_layer_protocol_xtn,
|
|
|
- &negotiatedExtension);
|
|
|
- if(rv != SECSuccess || !negotiatedExtension) {
|
|
|
- rv = SSL_HandshakeNegotiatedExtension(sock, ssl_next_proto_nego_xtn,
|
|
|
- &negotiatedExtension);
|
|
|
- }
|
|
|
-
|
|
|
- if(rv != SECSuccess || !negotiatedExtension)
|
|
|
- goto end;
|
|
|
-
|
|
|
- *canFalseStart = PR_TRUE;
|
|
|
-
|
|
|
- infof(data, "Trying TLS False Start");
|
|
|
-
|
|
|
-end:
|
|
|
- return SECSuccess;
|
|
|
-}
|
|
|
-#endif
|
|
|
-
|
|
|
-static void display_cert_info(struct Curl_easy *data,
|
|
|
- CERTCertificate *cert)
|
|
|
-{
|
|
|
- char *subject, *issuer, *common_name;
|
|
|
- PRExplodedTime printableTime;
|
|
|
- char timeString[256];
|
|
|
- PRTime notBefore, notAfter;
|
|
|
-
|
|
|
- subject = CERT_NameToAscii(&cert->subject);
|
|
|
- issuer = CERT_NameToAscii(&cert->issuer);
|
|
|
- common_name = CERT_GetCommonName(&cert->subject);
|
|
|
- infof(data, "subject: %s", subject);
|
|
|
-
|
|
|
- CERT_GetCertTimes(cert, ¬Before, ¬After);
|
|
|
- PR_ExplodeTime(notBefore, PR_GMTParameters, &printableTime);
|
|
|
- PR_FormatTime(timeString, 256, "%b %d %H:%M:%S %Y GMT", &printableTime);
|
|
|
- infof(data, " start date: %s", timeString);
|
|
|
- PR_ExplodeTime(notAfter, PR_GMTParameters, &printableTime);
|
|
|
- PR_FormatTime(timeString, 256, "%b %d %H:%M:%S %Y GMT", &printableTime);
|
|
|
- infof(data, " expire date: %s", timeString);
|
|
|
- infof(data, " common name: %s", common_name);
|
|
|
- infof(data, " issuer: %s", issuer);
|
|
|
-
|
|
|
- PR_Free(subject);
|
|
|
- PR_Free(issuer);
|
|
|
- PR_Free(common_name);
|
|
|
-}
|
|
|
-
|
|
|
-/* A number of certs that will never occur in a real server handshake */
|
|
|
-#define TOO_MANY_CERTS 300
|
|
|
-
|
|
|
-static CURLcode display_conn_info(struct Curl_easy *data, PRFileDesc *sock)
|
|
|
-{
|
|
|
- CURLcode result = CURLE_OK;
|
|
|
- SSLChannelInfo channel;
|
|
|
- SSLCipherSuiteInfo suite;
|
|
|
- CERTCertificate *cert;
|
|
|
- CERTCertificate *cert2;
|
|
|
- CERTCertificate *cert3;
|
|
|
- PRTime now;
|
|
|
-
|
|
|
- if(SSL_GetChannelInfo(sock, &channel, sizeof(channel)) ==
|
|
|
- SECSuccess && channel.length == sizeof(channel) &&
|
|
|
- channel.cipherSuite) {
|
|
|
- if(SSL_GetCipherSuiteInfo(channel.cipherSuite,
|
|
|
- &suite, sizeof(suite)) == SECSuccess) {
|
|
|
- infof(data, "SSL connection using %s", suite.cipherSuiteName);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- cert = SSL_PeerCertificate(sock);
|
|
|
- if(cert) {
|
|
|
- infof(data, "Server certificate:");
|
|
|
-
|
|
|
- if(!data->set.ssl.certinfo) {
|
|
|
- display_cert_info(data, cert);
|
|
|
- CERT_DestroyCertificate(cert);
|
|
|
- }
|
|
|
- else {
|
|
|
- /* Count certificates in chain. */
|
|
|
- int i = 1;
|
|
|
- now = PR_Now();
|
|
|
- if(!cert->isRoot) {
|
|
|
- cert2 = CERT_FindCertIssuer(cert, now, certUsageSSLCA);
|
|
|
- while(cert2) {
|
|
|
- i++;
|
|
|
- if(i >= TOO_MANY_CERTS) {
|
|
|
- CERT_DestroyCertificate(cert2);
|
|
|
- failf(data, "certificate loop");
|
|
|
- return CURLE_SSL_CERTPROBLEM;
|
|
|
- }
|
|
|
- if(cert2->isRoot) {
|
|
|
- CERT_DestroyCertificate(cert2);
|
|
|
- break;
|
|
|
- }
|
|
|
- cert3 = CERT_FindCertIssuer(cert2, now, certUsageSSLCA);
|
|
|
- CERT_DestroyCertificate(cert2);
|
|
|
- cert2 = cert3;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- result = Curl_ssl_init_certinfo(data, i);
|
|
|
- if(!result) {
|
|
|
- for(i = 0; cert; cert = cert2) {
|
|
|
- result = Curl_extract_certinfo(data, i++, (char *)cert->derCert.data,
|
|
|
- (char *)cert->derCert.data +
|
|
|
- cert->derCert.len);
|
|
|
- if(result)
|
|
|
- break;
|
|
|
-
|
|
|
- if(cert->isRoot) {
|
|
|
- CERT_DestroyCertificate(cert);
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- cert2 = CERT_FindCertIssuer(cert, now, certUsageSSLCA);
|
|
|
- CERT_DestroyCertificate(cert);
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return result;
|
|
|
-}
|
|
|
-
|
|
|
-static SECStatus BadCertHandler(void *arg, PRFileDesc *sock)
|
|
|
-{
|
|
|
- struct Curl_cfilter *cf = (struct Curl_cfilter *)arg;
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- struct Curl_easy *data = backend->data;
|
|
|
- struct ssl_primary_config *conn_config = Curl_ssl_cf_get_primary_config(cf);
|
|
|
- struct ssl_config_data *ssl_config;
|
|
|
- PRErrorCode err = PR_GetError();
|
|
|
- CERTCertificate *cert;
|
|
|
-
|
|
|
- DEBUGASSERT(data);
|
|
|
- ssl_config = Curl_ssl_cf_get_config(cf, data);
|
|
|
- /* remember the cert verification result */
|
|
|
- ssl_config->certverifyresult = err;
|
|
|
-
|
|
|
- if(err == SSL_ERROR_BAD_CERT_DOMAIN && !conn_config->verifyhost)
|
|
|
- /* we are asked not to verify the host name */
|
|
|
- return SECSuccess;
|
|
|
-
|
|
|
- /* print only info about the cert, the error is printed off the callback */
|
|
|
- cert = SSL_PeerCertificate(sock);
|
|
|
- if(cert) {
|
|
|
- infof(data, "Server certificate:");
|
|
|
- display_cert_info(data, cert);
|
|
|
- CERT_DestroyCertificate(cert);
|
|
|
- }
|
|
|
-
|
|
|
- return SECFailure;
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- *
|
|
|
- * Check that the Peer certificate's issuer certificate matches the one found
|
|
|
- * by issuer_nickname. This is not exactly the way OpenSSL and GNU TLS do the
|
|
|
- * issuer check, so we provide comments that mimic the OpenSSL
|
|
|
- * X509_check_issued function (in x509v3/v3_purp.c)
|
|
|
- */
|
|
|
-static SECStatus check_issuer_cert(PRFileDesc *sock,
|
|
|
- char *issuer_nickname)
|
|
|
-{
|
|
|
- CERTCertificate *cert, *cert_issuer, *issuer;
|
|
|
- SECStatus res = SECSuccess;
|
|
|
- void *proto_win = NULL;
|
|
|
-
|
|
|
- cert = SSL_PeerCertificate(sock);
|
|
|
- cert_issuer = CERT_FindCertIssuer(cert, PR_Now(), certUsageObjectSigner);
|
|
|
-
|
|
|
- proto_win = SSL_RevealPinArg(sock);
|
|
|
- issuer = PK11_FindCertFromNickname(issuer_nickname, proto_win);
|
|
|
-
|
|
|
- if((!cert_issuer) || (!issuer))
|
|
|
- res = SECFailure;
|
|
|
- else if(SECITEM_CompareItem(&cert_issuer->derCert,
|
|
|
- &issuer->derCert) != SECEqual)
|
|
|
- res = SECFailure;
|
|
|
-
|
|
|
- CERT_DestroyCertificate(cert);
|
|
|
- CERT_DestroyCertificate(issuer);
|
|
|
- CERT_DestroyCertificate(cert_issuer);
|
|
|
- return res;
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode cmp_peer_pubkey(struct ssl_connect_data *connssl,
|
|
|
- const char *pinnedpubkey)
|
|
|
-{
|
|
|
- CURLcode result = CURLE_SSL_PINNEDPUBKEYNOTMATCH;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- struct Curl_easy *data = NULL;
|
|
|
- CERTCertificate *cert;
|
|
|
-
|
|
|
- DEBUGASSERT(backend);
|
|
|
- data = backend->data;
|
|
|
-
|
|
|
- if(!pinnedpubkey)
|
|
|
- /* no pinned public key specified */
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
- /* get peer certificate */
|
|
|
- cert = SSL_PeerCertificate(backend->handle);
|
|
|
- if(cert) {
|
|
|
- /* extract public key from peer certificate */
|
|
|
- SECKEYPublicKey *pubkey = CERT_ExtractPublicKey(cert);
|
|
|
- if(pubkey) {
|
|
|
- /* encode the public key as DER */
|
|
|
- SECItem *cert_der = PK11_DEREncodePublicKey(pubkey);
|
|
|
- if(cert_der) {
|
|
|
- /* compare the public key with the pinned public key */
|
|
|
- result = Curl_pin_peer_pubkey(data, pinnedpubkey, cert_der->data,
|
|
|
- cert_der->len);
|
|
|
- SECITEM_FreeItem(cert_der, PR_TRUE);
|
|
|
- }
|
|
|
- SECKEY_DestroyPublicKey(pubkey);
|
|
|
- }
|
|
|
- CERT_DestroyCertificate(cert);
|
|
|
- }
|
|
|
-
|
|
|
- /* report the resulting status */
|
|
|
- switch(result) {
|
|
|
- case CURLE_OK:
|
|
|
- infof(data, "pinned public key verified successfully");
|
|
|
- break;
|
|
|
- case CURLE_SSL_PINNEDPUBKEYNOTMATCH:
|
|
|
- failf(data, "failed to verify pinned public key");
|
|
|
- break;
|
|
|
- default:
|
|
|
- /* OOM, etc. */
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- return result;
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- *
|
|
|
- * Callback to pick the SSL client certificate.
|
|
|
- */
|
|
|
-static SECStatus SelectClientCert(void *arg, PRFileDesc *sock,
|
|
|
- struct CERTDistNamesStr *caNames,
|
|
|
- struct CERTCertificateStr **pRetCert,
|
|
|
- struct SECKEYPrivateKeyStr **pRetKey)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = (struct ssl_connect_data *)arg;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- struct Curl_easy *data = NULL;
|
|
|
- const char *nickname = NULL;
|
|
|
- static const char pem_slotname[] = "PEM Token #1";
|
|
|
-
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- data = backend->data;
|
|
|
- nickname = backend->client_nickname;
|
|
|
-
|
|
|
- if(backend->obj_clicert) {
|
|
|
- /* use the cert/key provided by PEM reader */
|
|
|
- SECItem cert_der = { 0, NULL, 0 };
|
|
|
- void *proto_win = SSL_RevealPinArg(sock);
|
|
|
- struct CERTCertificateStr *cert;
|
|
|
- struct SECKEYPrivateKeyStr *key;
|
|
|
-
|
|
|
- PK11SlotInfo *slot = nss_find_slot_by_name(pem_slotname);
|
|
|
- if(!slot) {
|
|
|
- failf(data, "NSS: PK11 slot not found: %s", pem_slotname);
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
-
|
|
|
- if(PK11_ReadRawAttribute(PK11_TypeGeneric, backend->obj_clicert, CKA_VALUE,
|
|
|
- &cert_der) != SECSuccess) {
|
|
|
- failf(data, "NSS: CKA_VALUE not found in PK11 generic object");
|
|
|
- PK11_FreeSlot(slot);
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
-
|
|
|
- cert = PK11_FindCertFromDERCertItem(slot, &cert_der, proto_win);
|
|
|
- SECITEM_FreeItem(&cert_der, PR_FALSE);
|
|
|
- if(!cert) {
|
|
|
- failf(data, "NSS: client certificate from file not found");
|
|
|
- PK11_FreeSlot(slot);
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
-
|
|
|
- key = PK11_FindPrivateKeyFromCert(slot, cert, NULL);
|
|
|
- PK11_FreeSlot(slot);
|
|
|
- if(!key) {
|
|
|
- failf(data, "NSS: private key from file not found");
|
|
|
- CERT_DestroyCertificate(cert);
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
-
|
|
|
- infof(data, "NSS: client certificate from file");
|
|
|
- display_cert_info(data, cert);
|
|
|
-
|
|
|
- *pRetCert = cert;
|
|
|
- *pRetKey = key;
|
|
|
- return SECSuccess;
|
|
|
- }
|
|
|
-
|
|
|
- /* use the default NSS hook */
|
|
|
- if(SECSuccess != NSS_GetClientAuthData((void *)nickname, sock, caNames,
|
|
|
- pRetCert, pRetKey)
|
|
|
- || !*pRetCert) {
|
|
|
-
|
|
|
- if(!nickname)
|
|
|
- failf(data, "NSS: client certificate not found (nickname not "
|
|
|
- "specified)");
|
|
|
- else
|
|
|
- failf(data, "NSS: client certificate not found: %s", nickname);
|
|
|
-
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
-
|
|
|
- /* get certificate nickname if any */
|
|
|
- nickname = (*pRetCert)->nickname;
|
|
|
- if(!nickname)
|
|
|
- nickname = "[unknown]";
|
|
|
-
|
|
|
- if(!strncmp(nickname, pem_slotname, sizeof(pem_slotname) - 1U)) {
|
|
|
- failf(data, "NSS: refusing previously loaded certificate from file: %s",
|
|
|
- nickname);
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
-
|
|
|
- if(!*pRetKey) {
|
|
|
- failf(data, "NSS: private key not found for certificate: %s", nickname);
|
|
|
- return SECFailure;
|
|
|
- }
|
|
|
-
|
|
|
- infof(data, "NSS: using client certificate: %s", nickname);
|
|
|
- display_cert_info(data, *pRetCert);
|
|
|
- return SECSuccess;
|
|
|
-}
|
|
|
-
|
|
|
-/* update blocking direction in case of PR_WOULD_BLOCK_ERROR */
|
|
|
-static void nss_update_connecting_state(ssl_connect_state state, void *secret)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = (struct ssl_connect_data *)secret;
|
|
|
- if(PR_GetError() != PR_WOULD_BLOCK_ERROR)
|
|
|
- /* an unrelated error is passing by */
|
|
|
- return;
|
|
|
-
|
|
|
- switch(connssl->connecting_state) {
|
|
|
- case ssl_connect_2:
|
|
|
- case ssl_connect_2_reading:
|
|
|
- case ssl_connect_2_writing:
|
|
|
- break;
|
|
|
- default:
|
|
|
- /* we are not called from an SSL handshake */
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- /* update the state accordingly */
|
|
|
- connssl->connecting_state = state;
|
|
|
-}
|
|
|
-
|
|
|
-/* recv() wrapper we use to detect blocking direction during SSL handshake */
|
|
|
-static PRInt32 nspr_io_recv(PRFileDesc *fd, void *buf, PRInt32 amount,
|
|
|
- PRIntn flags, PRIntervalTime timeout)
|
|
|
-{
|
|
|
- const PRRecvFN recv_fn = fd->lower->methods->recv;
|
|
|
- const PRInt32 rv = recv_fn(fd->lower, buf, amount, flags, timeout);
|
|
|
- if(rv < 0)
|
|
|
- /* check for PR_WOULD_BLOCK_ERROR and update blocking direction */
|
|
|
- nss_update_connecting_state(ssl_connect_2_reading, fd->secret);
|
|
|
- return rv;
|
|
|
-}
|
|
|
-
|
|
|
-/* send() wrapper we use to detect blocking direction during SSL handshake */
|
|
|
-static PRInt32 nspr_io_send(PRFileDesc *fd, const void *buf, PRInt32 amount,
|
|
|
- PRIntn flags, PRIntervalTime timeout)
|
|
|
-{
|
|
|
- const PRSendFN send_fn = fd->lower->methods->send;
|
|
|
- const PRInt32 rv = send_fn(fd->lower, buf, amount, flags, timeout);
|
|
|
- if(rv < 0)
|
|
|
- /* check for PR_WOULD_BLOCK_ERROR and update blocking direction */
|
|
|
- nss_update_connecting_state(ssl_connect_2_writing, fd->secret);
|
|
|
- return rv;
|
|
|
-}
|
|
|
-
|
|
|
-/* close() wrapper to avoid assertion failure due to fd->secret != NULL */
|
|
|
-static PRStatus nspr_io_close(PRFileDesc *fd)
|
|
|
-{
|
|
|
- const PRCloseFN close_fn = PR_GetDefaultIOMethods()->close;
|
|
|
- fd->secret = NULL;
|
|
|
- return close_fn(fd);
|
|
|
-}
|
|
|
-
|
|
|
-/* load a PKCS #11 module */
|
|
|
-static CURLcode nss_load_module(SECMODModule **pmod, const char *library,
|
|
|
- const char *name)
|
|
|
-{
|
|
|
- char *config_string;
|
|
|
- SECMODModule *module = *pmod;
|
|
|
- if(module)
|
|
|
- /* already loaded */
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
- config_string = aprintf("library=%s name=%s", library, name);
|
|
|
- if(!config_string)
|
|
|
- return CURLE_OUT_OF_MEMORY;
|
|
|
-
|
|
|
- module = SECMOD_LoadUserModule(config_string, NULL, PR_FALSE);
|
|
|
- free(config_string);
|
|
|
-
|
|
|
- if(module && module->loaded) {
|
|
|
- /* loaded successfully */
|
|
|
- *pmod = module;
|
|
|
- return CURLE_OK;
|
|
|
- }
|
|
|
-
|
|
|
- if(module)
|
|
|
- SECMOD_DestroyModule(module);
|
|
|
- return CURLE_FAILED_INIT;
|
|
|
-}
|
|
|
-
|
|
|
-/* unload a PKCS #11 module */
|
|
|
-static void nss_unload_module(SECMODModule **pmod)
|
|
|
-{
|
|
|
- SECMODModule *module = *pmod;
|
|
|
- if(!module)
|
|
|
- /* not loaded */
|
|
|
- return;
|
|
|
-
|
|
|
- if(SECMOD_UnloadUserModule(module) != SECSuccess)
|
|
|
- /* unload failed */
|
|
|
- return;
|
|
|
-
|
|
|
- SECMOD_DestroyModule(module);
|
|
|
- *pmod = NULL;
|
|
|
-}
|
|
|
-
|
|
|
-/* data might be NULL */
|
|
|
-static CURLcode nss_init_core(struct Curl_easy *data, const char *cert_dir)
|
|
|
-{
|
|
|
- NSSInitParameters initparams;
|
|
|
- PRErrorCode err;
|
|
|
- const char *err_name;
|
|
|
-
|
|
|
- if(nss_context)
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
- memset((void *) &initparams, '\0', sizeof(initparams));
|
|
|
- initparams.length = sizeof(initparams);
|
|
|
-
|
|
|
- if(cert_dir) {
|
|
|
- char *certpath = aprintf("sql:%s", cert_dir);
|
|
|
- if(!certpath)
|
|
|
- return CURLE_OUT_OF_MEMORY;
|
|
|
-
|
|
|
- infof(data, "Initializing NSS with certpath: %s", certpath);
|
|
|
- nss_context = NSS_InitContext(certpath, "", "", "", &initparams,
|
|
|
- NSS_INIT_READONLY | NSS_INIT_PK11RELOAD);
|
|
|
- free(certpath);
|
|
|
-
|
|
|
- if(nss_context)
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
- err = PR_GetError();
|
|
|
- err_name = nss_error_to_name(err);
|
|
|
- infof(data, "Unable to initialize NSS database: %d (%s)", err, err_name);
|
|
|
- }
|
|
|
-
|
|
|
- infof(data, "Initializing NSS with certpath: none");
|
|
|
- nss_context = NSS_InitContext("", "", "", "", &initparams, NSS_INIT_READONLY
|
|
|
- | NSS_INIT_NOCERTDB | NSS_INIT_NOMODDB | NSS_INIT_FORCEOPEN
|
|
|
- | NSS_INIT_NOROOTINIT | NSS_INIT_OPTIMIZESPACE | NSS_INIT_PK11RELOAD);
|
|
|
- if(nss_context)
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
- err = PR_GetError();
|
|
|
- err_name = nss_error_to_name(err);
|
|
|
- failf(data, "Unable to initialize NSS: %d (%s)", err, err_name);
|
|
|
- return CURLE_SSL_CACERT_BADFILE;
|
|
|
-}
|
|
|
-
|
|
|
-/* data might be NULL */
|
|
|
-static CURLcode nss_setup(struct Curl_easy *data)
|
|
|
-{
|
|
|
- char *cert_dir;
|
|
|
- struct_stat st;
|
|
|
- CURLcode result;
|
|
|
-
|
|
|
- if(initialized)
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
- /* list of all CRL items we need to destroy in nss_cleanup() */
|
|
|
- Curl_llist_init(&nss_crl_list, nss_destroy_crl_item);
|
|
|
-
|
|
|
- /* First we check if $SSL_DIR points to a valid dir */
|
|
|
- cert_dir = getenv("SSL_DIR");
|
|
|
- if(cert_dir) {
|
|
|
- if((stat(cert_dir, &st) != 0) ||
|
|
|
- (!S_ISDIR(st.st_mode))) {
|
|
|
- cert_dir = NULL;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* Now we check if the default location is a valid dir */
|
|
|
- if(!cert_dir) {
|
|
|
- if((stat(SSL_DIR, &st) == 0) &&
|
|
|
- (S_ISDIR(st.st_mode))) {
|
|
|
- cert_dir = (char *)SSL_DIR;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if(nspr_io_identity == PR_INVALID_IO_LAYER) {
|
|
|
- /* allocate an identity for our own NSPR I/O layer */
|
|
|
- nspr_io_identity = PR_GetUniqueIdentity("libcurl");
|
|
|
- if(nspr_io_identity == PR_INVALID_IO_LAYER)
|
|
|
- return CURLE_OUT_OF_MEMORY;
|
|
|
-
|
|
|
- /* the default methods just call down to the lower I/O layer */
|
|
|
- memcpy(&nspr_io_methods, PR_GetDefaultIOMethods(),
|
|
|
- sizeof(nspr_io_methods));
|
|
|
-
|
|
|
- /* override certain methods in the table by our wrappers */
|
|
|
- nspr_io_methods.recv = nspr_io_recv;
|
|
|
- nspr_io_methods.send = nspr_io_send;
|
|
|
- nspr_io_methods.close = nspr_io_close;
|
|
|
- }
|
|
|
-
|
|
|
- result = nss_init_core(data, cert_dir);
|
|
|
- if(result)
|
|
|
- return result;
|
|
|
-
|
|
|
- if(!any_cipher_enabled())
|
|
|
- NSS_SetDomesticPolicy();
|
|
|
-
|
|
|
- initialized = 1;
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * Global SSL init
|
|
|
- *
|
|
|
- * @retval 0 error initializing SSL
|
|
|
- * @retval 1 SSL initialized successfully
|
|
|
- */
|
|
|
-static int nss_init(void)
|
|
|
-{
|
|
|
- /* curl_global_init() is not thread-safe so this test is ok */
|
|
|
- if(!nss_initlock) {
|
|
|
- PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
|
|
|
- nss_initlock = PR_NewLock();
|
|
|
- nss_crllock = PR_NewLock();
|
|
|
- nss_findslot_lock = PR_NewLock();
|
|
|
- nss_trustload_lock = PR_NewLock();
|
|
|
- }
|
|
|
-
|
|
|
- /* We will actually initialize NSS later */
|
|
|
-
|
|
|
- return 1;
|
|
|
-}
|
|
|
-
|
|
|
-/* data might be NULL */
|
|
|
-CURLcode Curl_nss_force_init(struct Curl_easy *data)
|
|
|
-{
|
|
|
- CURLcode result;
|
|
|
- if(!nss_initlock) {
|
|
|
- if(data)
|
|
|
- failf(data, "unable to initialize NSS, curl_global_init() should have "
|
|
|
- "been called with CURL_GLOBAL_SSL or CURL_GLOBAL_ALL");
|
|
|
- return CURLE_FAILED_INIT;
|
|
|
- }
|
|
|
-
|
|
|
- PR_Lock(nss_initlock);
|
|
|
- result = nss_setup(data);
|
|
|
- PR_Unlock(nss_initlock);
|
|
|
-
|
|
|
- return result;
|
|
|
-}
|
|
|
-
|
|
|
-/* Global cleanup */
|
|
|
-static void nss_cleanup(void)
|
|
|
-{
|
|
|
- /* This function isn't required to be threadsafe and this is only done
|
|
|
- * as a safety feature.
|
|
|
- */
|
|
|
- PR_Lock(nss_initlock);
|
|
|
- if(initialized) {
|
|
|
- /* Free references to client certificates held in the SSL session cache.
|
|
|
- * Omitting this hampers destruction of the security module owning
|
|
|
- * the certificates. */
|
|
|
- SSL_ClearSessionCache();
|
|
|
-
|
|
|
- nss_unload_module(&pem_module);
|
|
|
- nss_unload_module(&trust_module);
|
|
|
- NSS_ShutdownContext(nss_context);
|
|
|
- nss_context = NULL;
|
|
|
- }
|
|
|
-
|
|
|
- /* destroy all CRL items */
|
|
|
- Curl_llist_destroy(&nss_crl_list, NULL);
|
|
|
-
|
|
|
- PR_Unlock(nss_initlock);
|
|
|
-
|
|
|
- PR_DestroyLock(nss_initlock);
|
|
|
- PR_DestroyLock(nss_crllock);
|
|
|
- PR_DestroyLock(nss_findslot_lock);
|
|
|
- PR_DestroyLock(nss_trustload_lock);
|
|
|
- nss_initlock = NULL;
|
|
|
-
|
|
|
- initialized = 0;
|
|
|
-}
|
|
|
-
|
|
|
-static void close_one(struct ssl_connect_data *connssl)
|
|
|
-{
|
|
|
- /* before the cleanup, check whether we are using a client certificate */
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- bool client_cert = true;
|
|
|
-
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- client_cert = (backend->client_nickname != NULL)
|
|
|
- || (backend->obj_clicert != NULL);
|
|
|
-
|
|
|
- if(backend->handle) {
|
|
|
- char buf[32];
|
|
|
- /* Maybe the server has already sent a close notify alert.
|
|
|
- Read it to avoid an RST on the TCP connection. */
|
|
|
- (void)PR_Recv(backend->handle, buf, (int)sizeof(buf), 0,
|
|
|
- PR_INTERVAL_NO_WAIT);
|
|
|
- }
|
|
|
-
|
|
|
- free(backend->client_nickname);
|
|
|
- backend->client_nickname = NULL;
|
|
|
-
|
|
|
- /* destroy all NSS objects in order to avoid failure of NSS shutdown */
|
|
|
- Curl_llist_destroy(&backend->obj_list, NULL);
|
|
|
- backend->obj_clicert = NULL;
|
|
|
-
|
|
|
- if(backend->handle) {
|
|
|
- if(client_cert)
|
|
|
- /* A server might require different authentication based on the
|
|
|
- * particular path being requested by the client. To support this
|
|
|
- * scenario, we must ensure that a connection will never reuse the
|
|
|
- * authentication data from a previous connection. */
|
|
|
- SSL_InvalidateSession(backend->handle);
|
|
|
-
|
|
|
- PR_Close(backend->handle);
|
|
|
- backend->handle = NULL;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-/*
|
|
|
- * This function is called when an SSL connection is closed.
|
|
|
- */
|
|
|
-static void nss_close(struct Curl_cfilter *cf, struct Curl_easy *data)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- (void)data;
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- if(backend->handle) {
|
|
|
- /* NSS closes the socket we previously handed to it, so we must mark it
|
|
|
- as closed to avoid double close */
|
|
|
- fake_sclose(cf->conn->sock[cf->sockindex]);
|
|
|
- cf->conn->sock[cf->sockindex] = CURL_SOCKET_BAD;
|
|
|
- }
|
|
|
-
|
|
|
- close_one(connssl);
|
|
|
-}
|
|
|
-
|
|
|
-/* return true if NSS can provide error code (and possibly msg) for the
|
|
|
- error */
|
|
|
-static bool is_nss_error(CURLcode err)
|
|
|
-{
|
|
|
- switch(err) {
|
|
|
- case CURLE_PEER_FAILED_VERIFICATION:
|
|
|
- case CURLE_SSL_CERTPROBLEM:
|
|
|
- case CURLE_SSL_CONNECT_ERROR:
|
|
|
- case CURLE_SSL_ISSUER_ERROR:
|
|
|
- return true;
|
|
|
-
|
|
|
- default:
|
|
|
- return false;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-/* return true if the given error code is related to a client certificate */
|
|
|
-static bool is_cc_error(PRInt32 err)
|
|
|
-{
|
|
|
- switch(err) {
|
|
|
- case SSL_ERROR_BAD_CERT_ALERT:
|
|
|
- case SSL_ERROR_EXPIRED_CERT_ALERT:
|
|
|
- case SSL_ERROR_REVOKED_CERT_ALERT:
|
|
|
- return true;
|
|
|
-
|
|
|
- default:
|
|
|
- return false;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_load_ca_certificates(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct ssl_primary_config *conn_config = Curl_ssl_cf_get_primary_config(cf);
|
|
|
- const char *cafile = conn_config->CAfile;
|
|
|
- const char *capath = conn_config->CApath;
|
|
|
- bool use_trust_module;
|
|
|
- CURLcode result = CURLE_OK;
|
|
|
-
|
|
|
- /* treat empty string as unset */
|
|
|
- if(cafile && !cafile[0])
|
|
|
- cafile = NULL;
|
|
|
- if(capath && !capath[0])
|
|
|
- capath = NULL;
|
|
|
-
|
|
|
- infof(data, " CAfile: %s", cafile ? cafile : "none");
|
|
|
- infof(data, " CApath: %s", capath ? capath : "none");
|
|
|
-
|
|
|
- /* load libnssckbi.so if no other trust roots were specified */
|
|
|
- use_trust_module = !cafile && !capath;
|
|
|
-
|
|
|
- PR_Lock(nss_trustload_lock);
|
|
|
- if(use_trust_module && !trust_module) {
|
|
|
- /* libnssckbi.so needed but not yet loaded --> load it! */
|
|
|
- result = nss_load_module(&trust_module, trust_library, "trust");
|
|
|
- infof(data, "%s %s", (result) ? "failed to load" : "loaded",
|
|
|
- trust_library);
|
|
|
- if(result == CURLE_FAILED_INIT)
|
|
|
- /* If libnssckbi.so is not available (or fails to load), one can still
|
|
|
- use CA certificates stored in NSS database. Ignore the failure. */
|
|
|
- result = CURLE_OK;
|
|
|
- }
|
|
|
- else if(!use_trust_module && trust_module) {
|
|
|
- /* libnssckbi.so not needed but already loaded --> unload it! */
|
|
|
- infof(data, "unloading %s", trust_library);
|
|
|
- nss_unload_module(&trust_module);
|
|
|
- }
|
|
|
- PR_Unlock(nss_trustload_lock);
|
|
|
-
|
|
|
- if(cafile)
|
|
|
- result = nss_load_cert(connssl, cafile, PR_TRUE);
|
|
|
-
|
|
|
- if(result)
|
|
|
- return result;
|
|
|
-
|
|
|
- if(capath) {
|
|
|
- struct_stat st;
|
|
|
- if(stat(capath, &st) == -1)
|
|
|
- return CURLE_SSL_CACERT_BADFILE;
|
|
|
-
|
|
|
- if(S_ISDIR(st.st_mode)) {
|
|
|
- PRDirEntry *entry;
|
|
|
- PRDir *dir = PR_OpenDir(capath);
|
|
|
- if(!dir)
|
|
|
- return CURLE_SSL_CACERT_BADFILE;
|
|
|
-
|
|
|
- while((entry =
|
|
|
- PR_ReadDir(dir, (PRDirFlags)(PR_SKIP_BOTH | PR_SKIP_HIDDEN)))) {
|
|
|
- char *fullpath = aprintf("%s/%s", capath, entry->name);
|
|
|
- if(!fullpath) {
|
|
|
- PR_CloseDir(dir);
|
|
|
- return CURLE_OUT_OF_MEMORY;
|
|
|
- }
|
|
|
-
|
|
|
- if(CURLE_OK != nss_load_cert(connssl, fullpath, PR_TRUE))
|
|
|
- /* This is purposefully tolerant of errors so non-PEM files can
|
|
|
- * be in the same directory */
|
|
|
- infof(data, "failed to load '%s' from CURLOPT_CAPATH", fullpath);
|
|
|
-
|
|
|
- free(fullpath);
|
|
|
- }
|
|
|
-
|
|
|
- PR_CloseDir(dir);
|
|
|
- }
|
|
|
- else
|
|
|
- infof(data, "WARNING: CURLOPT_CAPATH not a directory (%s)", capath);
|
|
|
- }
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_sslver_from_curl(PRUint16 *nssver, long version)
|
|
|
-{
|
|
|
- switch(version) {
|
|
|
- case CURL_SSLVERSION_SSLv2:
|
|
|
- *nssver = SSL_LIBRARY_VERSION_2;
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
- case CURL_SSLVERSION_SSLv3:
|
|
|
- return CURLE_NOT_BUILT_IN;
|
|
|
-
|
|
|
- case CURL_SSLVERSION_TLSv1_0:
|
|
|
- *nssver = SSL_LIBRARY_VERSION_TLS_1_0;
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
- case CURL_SSLVERSION_TLSv1_1:
|
|
|
-#ifdef SSL_LIBRARY_VERSION_TLS_1_1
|
|
|
- *nssver = SSL_LIBRARY_VERSION_TLS_1_1;
|
|
|
- return CURLE_OK;
|
|
|
-#else
|
|
|
- return CURLE_SSL_CONNECT_ERROR;
|
|
|
-#endif
|
|
|
-
|
|
|
- case CURL_SSLVERSION_TLSv1_2:
|
|
|
-#ifdef SSL_LIBRARY_VERSION_TLS_1_2
|
|
|
- *nssver = SSL_LIBRARY_VERSION_TLS_1_2;
|
|
|
- return CURLE_OK;
|
|
|
-#else
|
|
|
- return CURLE_SSL_CONNECT_ERROR;
|
|
|
-#endif
|
|
|
-
|
|
|
- case CURL_SSLVERSION_TLSv1_3:
|
|
|
-#ifdef SSL_LIBRARY_VERSION_TLS_1_3
|
|
|
- *nssver = SSL_LIBRARY_VERSION_TLS_1_3;
|
|
|
- return CURLE_OK;
|
|
|
-#else
|
|
|
- return CURLE_SSL_CONNECT_ERROR;
|
|
|
-#endif
|
|
|
-
|
|
|
- default:
|
|
|
- return CURLE_SSL_CONNECT_ERROR;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_init_sslver(SSLVersionRange *sslver,
|
|
|
- struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data)
|
|
|
-{
|
|
|
- struct ssl_primary_config *conn_config = Curl_ssl_cf_get_primary_config(cf);
|
|
|
- CURLcode result;
|
|
|
- const long min = conn_config->version;
|
|
|
- const long max = conn_config->version_max;
|
|
|
- SSLVersionRange vrange;
|
|
|
-
|
|
|
- switch(min) {
|
|
|
- case CURL_SSLVERSION_TLSv1:
|
|
|
- case CURL_SSLVERSION_DEFAULT:
|
|
|
- /* Bump our minimum TLS version if NSS has stricter requirements. */
|
|
|
- if(SSL_VersionRangeGetDefault(ssl_variant_stream, &vrange) != SECSuccess)
|
|
|
- return CURLE_SSL_CONNECT_ERROR;
|
|
|
- if(sslver->min < vrange.min)
|
|
|
- sslver->min = vrange.min;
|
|
|
- break;
|
|
|
- default:
|
|
|
- result = nss_sslver_from_curl(&sslver->min, min);
|
|
|
- if(result) {
|
|
|
- failf(data, "unsupported min version passed via CURLOPT_SSLVERSION");
|
|
|
- return result;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- switch(max) {
|
|
|
- case CURL_SSLVERSION_MAX_NONE:
|
|
|
- case CURL_SSLVERSION_MAX_DEFAULT:
|
|
|
- break;
|
|
|
- default:
|
|
|
- result = nss_sslver_from_curl(&sslver->max, max >> 16);
|
|
|
- if(result) {
|
|
|
- failf(data, "unsupported max version passed via CURLOPT_SSLVERSION");
|
|
|
- return result;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_fail_connect(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data,
|
|
|
- CURLcode curlerr)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
-
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- if(is_nss_error(curlerr)) {
|
|
|
- /* read NSPR error code */
|
|
|
- PRErrorCode err = PR_GetError();
|
|
|
- if(is_cc_error(err))
|
|
|
- curlerr = CURLE_SSL_CERTPROBLEM;
|
|
|
-
|
|
|
- /* print the error number and error string */
|
|
|
- infof(data, "NSS error %d (%s)", err, nss_error_to_name(err));
|
|
|
-
|
|
|
- /* print a human-readable message describing the error if available */
|
|
|
- nss_print_error_message(data, err);
|
|
|
- }
|
|
|
-
|
|
|
- /* cleanup on connection failure */
|
|
|
- Curl_llist_destroy(&backend->obj_list, NULL);
|
|
|
-
|
|
|
- return curlerr;
|
|
|
-}
|
|
|
-
|
|
|
-/* Switch the SSL socket into blocking or non-blocking mode. */
|
|
|
-static CURLcode nss_set_blocking(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data,
|
|
|
- bool blocking)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- PRSocketOptionData sock_opt;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
-
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- sock_opt.option = PR_SockOpt_Nonblocking;
|
|
|
- sock_opt.value.non_blocking = !blocking;
|
|
|
-
|
|
|
- if(PR_SetSocketOption(backend->handle, &sock_opt) != PR_SUCCESS)
|
|
|
- return nss_fail_connect(cf, data, CURLE_SSL_CONNECT_ERROR);
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_setup_connect(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data)
|
|
|
-{
|
|
|
- PRFileDesc *model = NULL;
|
|
|
- PRFileDesc *nspr_io = NULL;
|
|
|
- PRFileDesc *nspr_io_stub = NULL;
|
|
|
- PRBool ssl_no_cache;
|
|
|
- PRBool ssl_cbc_random_iv;
|
|
|
- curl_socket_t sockfd = Curl_conn_cf_get_socket(cf, data);
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- struct ssl_primary_config *conn_config = Curl_ssl_cf_get_primary_config(cf);
|
|
|
- struct ssl_config_data *ssl_config = Curl_ssl_cf_get_config(cf, data);
|
|
|
- struct Curl_cfilter *cf_ssl_next = Curl_ssl_cf_get_ssl(cf->next);
|
|
|
- struct ssl_connect_data *connssl_next = cf_ssl_next?
|
|
|
- cf_ssl_next->ctx : NULL;
|
|
|
- CURLcode result;
|
|
|
- bool second_layer = FALSE;
|
|
|
- SSLVersionRange sslver_supported;
|
|
|
- SSLVersionRange sslver = {
|
|
|
- SSL_LIBRARY_VERSION_TLS_1_0, /* min */
|
|
|
-#ifdef SSL_LIBRARY_VERSION_TLS_1_3
|
|
|
- SSL_LIBRARY_VERSION_TLS_1_3 /* max */
|
|
|
-#elif defined SSL_LIBRARY_VERSION_TLS_1_2
|
|
|
- SSL_LIBRARY_VERSION_TLS_1_2
|
|
|
-#elif defined SSL_LIBRARY_VERSION_TLS_1_1
|
|
|
- SSL_LIBRARY_VERSION_TLS_1_1
|
|
|
-#else
|
|
|
- SSL_LIBRARY_VERSION_TLS_1_0
|
|
|
-#endif
|
|
|
- };
|
|
|
- const char *hostname = connssl->hostname;
|
|
|
- char *snihost;
|
|
|
-
|
|
|
- snihost = Curl_ssl_snihost(data, hostname, NULL);
|
|
|
- if(!snihost) {
|
|
|
- failf(data, "Failed to set SNI");
|
|
|
- return CURLE_SSL_CONNECT_ERROR;
|
|
|
- }
|
|
|
-
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- backend->data = data;
|
|
|
-
|
|
|
- /* list of all NSS objects we need to destroy in nss_do_close() */
|
|
|
- Curl_llist_init(&backend->obj_list, nss_destroy_object);
|
|
|
-
|
|
|
- PR_Lock(nss_initlock);
|
|
|
- result = nss_setup(data);
|
|
|
- if(result) {
|
|
|
- PR_Unlock(nss_initlock);
|
|
|
- goto error;
|
|
|
- }
|
|
|
-
|
|
|
- PK11_SetPasswordFunc(nss_get_password);
|
|
|
-
|
|
|
- result = nss_load_module(&pem_module, pem_library, "PEM");
|
|
|
- PR_Unlock(nss_initlock);
|
|
|
- if(result == CURLE_FAILED_INIT)
|
|
|
- infof(data, "WARNING: failed to load NSS PEM library %s. Using "
|
|
|
- "OpenSSL PEM certificates will not work.", pem_library);
|
|
|
- else if(result)
|
|
|
- goto error;
|
|
|
-
|
|
|
- result = CURLE_SSL_CONNECT_ERROR;
|
|
|
-
|
|
|
- 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;
|
|
|
-
|
|
|
- /* do not use SSL cache if disabled or we are not going to verify peer */
|
|
|
- ssl_no_cache = (ssl_config->primary.sessionid
|
|
|
- && conn_config->verifypeer) ? PR_FALSE : PR_TRUE;
|
|
|
- if(SSL_OptionSet(model, SSL_NO_CACHE, ssl_no_cache) != SECSuccess)
|
|
|
- goto error;
|
|
|
-
|
|
|
- /* enable/disable the requested SSL version(s) */
|
|
|
- if(nss_init_sslver(&sslver, cf, data) != CURLE_OK)
|
|
|
- goto error;
|
|
|
- if(SSL_VersionRangeGetSupported(ssl_variant_stream,
|
|
|
- &sslver_supported) != SECSuccess)
|
|
|
- goto error;
|
|
|
- if(sslver_supported.max < sslver.max && sslver_supported.max >= sslver.min) {
|
|
|
- char *sslver_req_str, *sslver_supp_str;
|
|
|
- sslver_req_str = nss_sslver_to_name(sslver.max);
|
|
|
- sslver_supp_str = nss_sslver_to_name(sslver_supported.max);
|
|
|
- if(sslver_req_str && sslver_supp_str)
|
|
|
- infof(data, "Falling back from %s to max supported SSL version (%s)",
|
|
|
- sslver_req_str, sslver_supp_str);
|
|
|
- free(sslver_req_str);
|
|
|
- free(sslver_supp_str);
|
|
|
- sslver.max = sslver_supported.max;
|
|
|
- }
|
|
|
- if(SSL_VersionRangeSet(model, &sslver) != SECSuccess)
|
|
|
- goto error;
|
|
|
-
|
|
|
- ssl_cbc_random_iv = !ssl_config->enable_beast;
|
|
|
-#ifdef SSL_CBC_RANDOM_IV
|
|
|
- /* unless the user explicitly asks to allow the protocol vulnerability, we
|
|
|
- use the work-around */
|
|
|
- if(SSL_OptionSet(model, SSL_CBC_RANDOM_IV, ssl_cbc_random_iv) != SECSuccess)
|
|
|
- infof(data, "WARNING: failed to set SSL_CBC_RANDOM_IV = %d",
|
|
|
- ssl_cbc_random_iv);
|
|
|
-#else
|
|
|
- if(ssl_cbc_random_iv)
|
|
|
- infof(data, "WARNING: support for SSL_CBC_RANDOM_IV not compiled in");
|
|
|
-#endif
|
|
|
-
|
|
|
- if(conn_config->cipher_list) {
|
|
|
- if(set_ciphers(data, model, conn_config->cipher_list) != SECSuccess) {
|
|
|
- result = CURLE_SSL_CIPHER;
|
|
|
- goto error;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if(!conn_config->verifypeer && conn_config->verifyhost)
|
|
|
- infof(data, "WARNING: ignoring value of ssl.verifyhost");
|
|
|
-
|
|
|
- /* bypass the default SSL_AuthCertificate() hook in case we do not want to
|
|
|
- * verify peer */
|
|
|
- if(SSL_AuthCertificateHook(model, nss_auth_cert_hook, cf) != SECSuccess)
|
|
|
- goto error;
|
|
|
-
|
|
|
- /* not checked yet */
|
|
|
- ssl_config->certverifyresult = 0;
|
|
|
-
|
|
|
- if(SSL_BadCertHook(model, BadCertHandler, cf) != SECSuccess)
|
|
|
- goto error;
|
|
|
-
|
|
|
- if(SSL_HandshakeCallback(model, HandshakeCallback, cf) != SECSuccess)
|
|
|
- goto error;
|
|
|
-
|
|
|
- {
|
|
|
- const CURLcode rv = nss_load_ca_certificates(cf, data);
|
|
|
- if((rv == CURLE_SSL_CACERT_BADFILE) && !conn_config->verifypeer)
|
|
|
- /* not a fatal error because we are not going to verify the peer */
|
|
|
- infof(data, "WARNING: CA certificates failed to load");
|
|
|
- else if(rv) {
|
|
|
- result = rv;
|
|
|
- goto error;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if(ssl_config->primary.CRLfile) {
|
|
|
- const CURLcode rv = nss_load_crl(ssl_config->primary.CRLfile);
|
|
|
- if(rv) {
|
|
|
- result = rv;
|
|
|
- goto error;
|
|
|
- }
|
|
|
- infof(data, " CRLfile: %s", ssl_config->primary.CRLfile);
|
|
|
- }
|
|
|
-
|
|
|
- if(ssl_config->primary.clientcert) {
|
|
|
- char *nickname = dup_nickname(data, ssl_config->primary.clientcert);
|
|
|
- if(nickname) {
|
|
|
- /* we are not going to use libnsspem.so to read the client cert */
|
|
|
- backend->obj_clicert = NULL;
|
|
|
- }
|
|
|
- else {
|
|
|
- CURLcode rv = cert_stuff(cf, data,
|
|
|
- ssl_config->primary.clientcert,
|
|
|
- ssl_config->key);
|
|
|
- if(rv) {
|
|
|
- /* failf() is already done in cert_stuff() */
|
|
|
- result = rv;
|
|
|
- goto error;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* store the nickname for SelectClientCert() called during handshake */
|
|
|
- backend->client_nickname = nickname;
|
|
|
- }
|
|
|
- else
|
|
|
- backend->client_nickname = NULL;
|
|
|
-
|
|
|
- if(SSL_GetClientAuthDataHook(model, SelectClientCert,
|
|
|
- (void *)connssl) != SECSuccess) {
|
|
|
- result = CURLE_SSL_CERTPROBLEM;
|
|
|
- goto error;
|
|
|
- }
|
|
|
-
|
|
|
- /* Is there an SSL filter "in front" of us or are we writing directly
|
|
|
- * to the socket? */
|
|
|
- if(connssl_next) {
|
|
|
- struct nss_ssl_backend_data *backend_next =
|
|
|
- (struct nss_ssl_backend_data *)connssl_next->backend;
|
|
|
- /* The filter should be connected by now, with full handshake */
|
|
|
- DEBUGASSERT(backend_next->handle);
|
|
|
- DEBUGASSERT(ssl_connection_complete == connssl_next->state);
|
|
|
- /* We tell our NSS instance to use do IO with the 'next' NSS
|
|
|
- * instance. This NSS instance will take ownership of the next
|
|
|
- * one, including its destruction. We therefore need to `disown`
|
|
|
- * the next filter's handle, once import succeeds. */
|
|
|
- nspr_io = backend->handle;
|
|
|
- second_layer = TRUE;
|
|
|
- }
|
|
|
- else {
|
|
|
- /* wrap OS file descriptor by NSPR's file descriptor abstraction */
|
|
|
- nspr_io = PR_ImportTCPSocket(sockfd);
|
|
|
- if(!nspr_io)
|
|
|
- goto error;
|
|
|
- }
|
|
|
-
|
|
|
- /* create our own NSPR I/O layer */
|
|
|
- nspr_io_stub = PR_CreateIOLayerStub(nspr_io_identity, &nspr_io_methods);
|
|
|
- if(!nspr_io_stub) {
|
|
|
- if(!second_layer)
|
|
|
- PR_Close(nspr_io);
|
|
|
- goto error;
|
|
|
- }
|
|
|
-
|
|
|
- /* make the per-connection data accessible from NSPR I/O callbacks */
|
|
|
- nspr_io_stub->secret = (void *)connssl;
|
|
|
-
|
|
|
- /* push our new layer to the NSPR I/O stack */
|
|
|
- if(PR_PushIOLayer(nspr_io, PR_TOP_IO_LAYER, nspr_io_stub) != PR_SUCCESS) {
|
|
|
- if(!second_layer)
|
|
|
- PR_Close(nspr_io);
|
|
|
- PR_Close(nspr_io_stub);
|
|
|
- goto error;
|
|
|
- }
|
|
|
-
|
|
|
- /* import our model socket onto the current I/O stack */
|
|
|
- backend->handle = SSL_ImportFD(model, nspr_io);
|
|
|
- if(!backend->handle) {
|
|
|
- if(!second_layer)
|
|
|
- PR_Close(nspr_io);
|
|
|
- goto error;
|
|
|
- }
|
|
|
-
|
|
|
- PR_Close(model); /* We don't need this any more */
|
|
|
- model = NULL;
|
|
|
- if(connssl_next) { /* steal the NSS handle we just imported successfully */
|
|
|
- struct nss_ssl_backend_data *backend_next =
|
|
|
- (struct nss_ssl_backend_data *)connssl_next->backend;
|
|
|
- backend_next->handle = NULL;
|
|
|
- }
|
|
|
-
|
|
|
- /* This is the password associated with the cert that we're using */
|
|
|
- if(ssl_config->key_passwd) {
|
|
|
- SSL_SetPKCS11PinArg(backend->handle, ssl_config->key_passwd);
|
|
|
- }
|
|
|
-
|
|
|
-#ifdef SSL_ENABLE_OCSP_STAPLING
|
|
|
- if(conn_config->verifystatus) {
|
|
|
- if(SSL_OptionSet(backend->handle, SSL_ENABLE_OCSP_STAPLING, PR_TRUE)
|
|
|
- != SECSuccess)
|
|
|
- goto error;
|
|
|
- }
|
|
|
-#endif
|
|
|
-
|
|
|
-#ifdef SSL_ENABLE_ALPN
|
|
|
- if(SSL_OptionSet(backend->handle, SSL_ENABLE_ALPN,
|
|
|
- connssl->alpn ? PR_TRUE : PR_FALSE)
|
|
|
- != SECSuccess)
|
|
|
- goto error;
|
|
|
-#endif
|
|
|
-
|
|
|
-#if NSSVERNUM >= 0x030f04 /* 3.15.4 */
|
|
|
- if(data->set.ssl.falsestart) {
|
|
|
- if(SSL_OptionSet(backend->handle, SSL_ENABLE_FALSE_START, PR_TRUE)
|
|
|
- != SECSuccess)
|
|
|
- goto error;
|
|
|
-
|
|
|
- if(SSL_SetCanFalseStartCallback(backend->handle, CanFalseStartCallback,
|
|
|
- data) != SECSuccess)
|
|
|
- goto error;
|
|
|
- }
|
|
|
-#endif
|
|
|
-
|
|
|
-#if defined(SSL_ENABLE_ALPN)
|
|
|
- if(connssl->alpn) {
|
|
|
- struct alpn_proto_buf proto;
|
|
|
-
|
|
|
- result = Curl_alpn_to_proto_buf(&proto, connssl->alpn);
|
|
|
- if(result || SSL_SetNextProtoNego(backend->handle, proto.data, proto.len)
|
|
|
- != SECSuccess) {
|
|
|
- failf(data, "Error setting ALPN");
|
|
|
- goto error;
|
|
|
- }
|
|
|
- Curl_alpn_to_proto_str(&proto, connssl->alpn);
|
|
|
- infof(data, VTLS_INFOF_ALPN_OFFER_1STR, proto.data);
|
|
|
- }
|
|
|
-#endif
|
|
|
-
|
|
|
-
|
|
|
- /* Force handshake on next I/O */
|
|
|
- if(SSL_ResetHandshake(backend->handle, /* asServer */ PR_FALSE)
|
|
|
- != SECSuccess)
|
|
|
- goto error;
|
|
|
-
|
|
|
- /* propagate hostname to the TLS layer */
|
|
|
- if(SSL_SetURL(backend->handle, snihost) != SECSuccess)
|
|
|
- goto error;
|
|
|
-
|
|
|
- /* prevent NSS from re-using the session for a different hostname */
|
|
|
- if(SSL_SetSockPeerID(backend->handle, snihost) != SECSuccess)
|
|
|
- goto error;
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
-error:
|
|
|
- if(model)
|
|
|
- PR_Close(model);
|
|
|
-
|
|
|
- return nss_fail_connect(cf, data, result);
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_do_connect(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- struct ssl_primary_config *conn_config = Curl_ssl_cf_get_primary_config(cf);
|
|
|
- struct ssl_config_data *ssl_config = Curl_ssl_cf_get_config(cf, data);
|
|
|
- CURLcode result = CURLE_SSL_CONNECT_ERROR;
|
|
|
- PRUint32 timeout;
|
|
|
-
|
|
|
- /* check timeout situation */
|
|
|
- const timediff_t time_left = Curl_timeleft(data, NULL, TRUE);
|
|
|
- if(time_left < 0) {
|
|
|
- failf(data, "timed out before SSL handshake");
|
|
|
- result = CURLE_OPERATION_TIMEDOUT;
|
|
|
- goto error;
|
|
|
- }
|
|
|
-
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- /* Force the handshake now */
|
|
|
- timeout = PR_MillisecondsToInterval((PRUint32) time_left);
|
|
|
- if(SSL_ForceHandshakeWithTimeout(backend->handle, timeout) != SECSuccess) {
|
|
|
- if(PR_GetError() == PR_WOULD_BLOCK_ERROR)
|
|
|
- /* blocking direction is updated by nss_update_connecting_state() */
|
|
|
- return CURLE_AGAIN;
|
|
|
- else if(ssl_config->certverifyresult == SSL_ERROR_BAD_CERT_DOMAIN)
|
|
|
- result = CURLE_PEER_FAILED_VERIFICATION;
|
|
|
- else if(ssl_config->certverifyresult)
|
|
|
- result = CURLE_PEER_FAILED_VERIFICATION;
|
|
|
- goto error;
|
|
|
- }
|
|
|
-
|
|
|
- result = display_conn_info(data, backend->handle);
|
|
|
- if(result)
|
|
|
- goto error;
|
|
|
-
|
|
|
- if(conn_config->issuercert) {
|
|
|
- SECStatus ret = SECFailure;
|
|
|
- char *nickname = dup_nickname(data, conn_config->issuercert);
|
|
|
- if(nickname) {
|
|
|
- /* we support only nicknames in case of issuercert for now */
|
|
|
- ret = check_issuer_cert(backend->handle, nickname);
|
|
|
- free(nickname);
|
|
|
- }
|
|
|
-
|
|
|
- if(SECFailure == ret) {
|
|
|
- infof(data, "SSL certificate issuer check failed");
|
|
|
- result = CURLE_SSL_ISSUER_ERROR;
|
|
|
- goto error;
|
|
|
- }
|
|
|
- else {
|
|
|
- infof(data, "SSL certificate issuer check ok");
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- result = cmp_peer_pubkey(connssl, Curl_ssl_cf_is_proxy(cf)?
|
|
|
- data->set.str[STRING_SSL_PINNEDPUBLICKEY_PROXY]:
|
|
|
- data->set.str[STRING_SSL_PINNEDPUBLICKEY]);
|
|
|
- if(result)
|
|
|
- /* status already printed */
|
|
|
- goto error;
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-
|
|
|
-error:
|
|
|
- return nss_fail_connect(cf, data, result);
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_connect_common(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data,
|
|
|
- bool *done)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- const bool blocking = (done == NULL);
|
|
|
- CURLcode result;
|
|
|
-
|
|
|
- if(connssl->state == ssl_connection_complete) {
|
|
|
- if(!blocking)
|
|
|
- *done = TRUE;
|
|
|
- return CURLE_OK;
|
|
|
- }
|
|
|
-
|
|
|
- if(connssl->connecting_state == ssl_connect_1) {
|
|
|
- result = nss_setup_connect(cf, data);
|
|
|
- if(result)
|
|
|
- /* we do not expect CURLE_AGAIN from nss_setup_connect() */
|
|
|
- return result;
|
|
|
-
|
|
|
- connssl->connecting_state = ssl_connect_2;
|
|
|
- }
|
|
|
-
|
|
|
- /* enable/disable blocking mode before handshake */
|
|
|
- result = nss_set_blocking(cf, data, blocking);
|
|
|
- if(result)
|
|
|
- return result;
|
|
|
-
|
|
|
- result = nss_do_connect(cf, data);
|
|
|
- switch(result) {
|
|
|
- case CURLE_OK:
|
|
|
- break;
|
|
|
- case CURLE_AGAIN:
|
|
|
- /* CURLE_AGAIN in non-blocking mode is not an error */
|
|
|
- if(!blocking)
|
|
|
- return CURLE_OK;
|
|
|
- else
|
|
|
- return result;
|
|
|
- default:
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
- if(blocking) {
|
|
|
- /* in blocking mode, set NSS non-blocking mode _after_ SSL handshake */
|
|
|
- result = nss_set_blocking(cf, data, /* blocking */ FALSE);
|
|
|
- if(result)
|
|
|
- return result;
|
|
|
- }
|
|
|
- else
|
|
|
- /* signal completed SSL handshake */
|
|
|
- *done = TRUE;
|
|
|
-
|
|
|
- connssl->state = ssl_connection_complete;
|
|
|
-
|
|
|
- /* ssl_connect_done is never used outside, go back to the initial state */
|
|
|
- connssl->connecting_state = ssl_connect_1;
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_connect(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data)
|
|
|
-{
|
|
|
- return nss_connect_common(cf, data, /* blocking */ NULL);
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_connect_nonblocking(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data,
|
|
|
- bool *done)
|
|
|
-{
|
|
|
- return nss_connect_common(cf, data, done);
|
|
|
-}
|
|
|
-
|
|
|
-static ssize_t nss_send(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data, /* transfer */
|
|
|
- const void *mem, /* send this data */
|
|
|
- size_t len, /* amount to write */
|
|
|
- CURLcode *curlcode)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- ssize_t rc;
|
|
|
-
|
|
|
- (void)data;
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- /* The SelectClientCert() hook uses this for infof() and failf() but the
|
|
|
- handle stored in nss_setup_connect() could have already been freed. */
|
|
|
- backend->data = data;
|
|
|
-
|
|
|
- rc = PR_Send(backend->handle, mem, (int)len, 0, PR_INTERVAL_NO_WAIT);
|
|
|
- if(rc < 0) {
|
|
|
- PRInt32 err = PR_GetError();
|
|
|
- if(err == PR_WOULD_BLOCK_ERROR)
|
|
|
- *curlcode = CURLE_AGAIN;
|
|
|
- else {
|
|
|
- /* print the error number and error string */
|
|
|
- const char *err_name = nss_error_to_name(err);
|
|
|
- infof(data, "SSL write: error %d (%s)", err, err_name);
|
|
|
-
|
|
|
- /* print a human-readable message describing the error if available */
|
|
|
- nss_print_error_message(data, err);
|
|
|
-
|
|
|
- *curlcode = (is_cc_error(err))
|
|
|
- ? CURLE_SSL_CERTPROBLEM
|
|
|
- : CURLE_SEND_ERROR;
|
|
|
- }
|
|
|
-
|
|
|
- return -1;
|
|
|
- }
|
|
|
-
|
|
|
- return rc; /* number of bytes */
|
|
|
-}
|
|
|
-
|
|
|
-static bool
|
|
|
-nss_data_pending(struct Curl_cfilter *cf, const struct Curl_easy *data)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- PRFileDesc *fd = backend->handle->lower;
|
|
|
- char buf;
|
|
|
-
|
|
|
- (void) data;
|
|
|
-
|
|
|
- /* Returns true in case of error to force reading. */
|
|
|
- return PR_Recv(fd, (void *) &buf, 1, PR_MSG_PEEK, PR_INTERVAL_NO_WAIT) != 0;
|
|
|
-}
|
|
|
-
|
|
|
-static ssize_t nss_recv(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data, /* transfer */
|
|
|
- char *buf, /* store read data here */
|
|
|
- size_t buffersize, /* max amount to read */
|
|
|
- CURLcode *curlcode)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- ssize_t nread;
|
|
|
-
|
|
|
- (void)data;
|
|
|
- DEBUGASSERT(backend);
|
|
|
-
|
|
|
- /* The SelectClientCert() hook uses this for infof() and failf() but the
|
|
|
- handle stored in nss_setup_connect() could have already been freed. */
|
|
|
- backend->data = data;
|
|
|
-
|
|
|
- nread = PR_Recv(backend->handle, buf, (int)buffersize, 0,
|
|
|
- PR_INTERVAL_NO_WAIT);
|
|
|
- if(nread < 0) {
|
|
|
- /* failed SSL read */
|
|
|
- PRInt32 err = PR_GetError();
|
|
|
-
|
|
|
- if(err == PR_WOULD_BLOCK_ERROR)
|
|
|
- *curlcode = CURLE_AGAIN;
|
|
|
- else {
|
|
|
- /* print the error number and error string */
|
|
|
- const char *err_name = nss_error_to_name(err);
|
|
|
- infof(data, "SSL read: errno %d (%s)", err, err_name);
|
|
|
-
|
|
|
- /* print a human-readable message describing the error if available */
|
|
|
- nss_print_error_message(data, err);
|
|
|
-
|
|
|
- *curlcode = (is_cc_error(err))
|
|
|
- ? CURLE_SSL_CERTPROBLEM
|
|
|
- : CURLE_RECV_ERROR;
|
|
|
- }
|
|
|
-
|
|
|
- return -1;
|
|
|
- }
|
|
|
-
|
|
|
- return nread;
|
|
|
-}
|
|
|
-
|
|
|
-static size_t nss_version(char *buffer, size_t size)
|
|
|
-{
|
|
|
- return msnprintf(buffer, size, "NSS/%s", NSS_GetVersion());
|
|
|
-}
|
|
|
-
|
|
|
-/* data might be NULL */
|
|
|
-static int Curl_nss_seed(struct Curl_easy *data)
|
|
|
-{
|
|
|
- /* make sure that NSS is initialized */
|
|
|
- return !!Curl_nss_force_init(data);
|
|
|
-}
|
|
|
-
|
|
|
-/* data might be NULL */
|
|
|
-static CURLcode nss_random(struct Curl_easy *data,
|
|
|
- unsigned char *entropy,
|
|
|
- size_t length)
|
|
|
-{
|
|
|
- Curl_nss_seed(data); /* Initiate the seed if not already done */
|
|
|
-
|
|
|
- if(SECSuccess != PK11_GenerateRandom(entropy, curlx_uztosi(length)))
|
|
|
- /* signal a failure */
|
|
|
- return CURLE_FAILED_INIT;
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-static CURLcode nss_sha256sum(const unsigned char *tmp, /* input */
|
|
|
- size_t tmplen,
|
|
|
- unsigned char *sha256sum, /* output */
|
|
|
- size_t sha256len)
|
|
|
-{
|
|
|
- PK11Context *SHA256pw = PK11_CreateDigestContext(SEC_OID_SHA256);
|
|
|
- unsigned int SHA256out;
|
|
|
-
|
|
|
- if(!SHA256pw)
|
|
|
- return CURLE_NOT_BUILT_IN;
|
|
|
-
|
|
|
- PK11_DigestOp(SHA256pw, tmp, curlx_uztoui(tmplen));
|
|
|
- PK11_DigestFinal(SHA256pw, sha256sum, &SHA256out, curlx_uztoui(sha256len));
|
|
|
- PK11_DestroyContext(SHA256pw, PR_TRUE);
|
|
|
-
|
|
|
- return CURLE_OK;
|
|
|
-}
|
|
|
-
|
|
|
-static bool nss_cert_status_request(void)
|
|
|
-{
|
|
|
-#ifdef SSL_ENABLE_OCSP_STAPLING
|
|
|
- return TRUE;
|
|
|
-#else
|
|
|
- return FALSE;
|
|
|
-#endif
|
|
|
-}
|
|
|
-
|
|
|
-static bool nss_false_start(void)
|
|
|
-{
|
|
|
-#if NSSVERNUM >= 0x030f04 /* 3.15.4 */
|
|
|
- return TRUE;
|
|
|
-#else
|
|
|
- return FALSE;
|
|
|
-#endif
|
|
|
-}
|
|
|
-
|
|
|
-static void *nss_get_internals(struct ssl_connect_data *connssl,
|
|
|
- CURLINFO info UNUSED_PARAM)
|
|
|
-{
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
- (void)info;
|
|
|
- DEBUGASSERT(backend);
|
|
|
- return backend->handle;
|
|
|
-}
|
|
|
-
|
|
|
-static bool nss_attach_data(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
-
|
|
|
- if(!backend->data)
|
|
|
- backend->data = data;
|
|
|
- return TRUE;
|
|
|
-}
|
|
|
-
|
|
|
-static void nss_detach_data(struct Curl_cfilter *cf,
|
|
|
- struct Curl_easy *data)
|
|
|
-{
|
|
|
- struct ssl_connect_data *connssl = cf->ctx;
|
|
|
- struct nss_ssl_backend_data *backend =
|
|
|
- (struct nss_ssl_backend_data *)connssl->backend;
|
|
|
-
|
|
|
- if(backend->data == data)
|
|
|
- backend->data = NULL;
|
|
|
-}
|
|
|
-
|
|
|
-const struct Curl_ssl Curl_ssl_nss = {
|
|
|
- { CURLSSLBACKEND_NSS, "nss" }, /* info */
|
|
|
-
|
|
|
- SSLSUPP_CA_PATH |
|
|
|
- SSLSUPP_CERTINFO |
|
|
|
- SSLSUPP_PINNEDPUBKEY |
|
|
|
- SSLSUPP_HTTPS_PROXY,
|
|
|
-
|
|
|
- sizeof(struct nss_ssl_backend_data),
|
|
|
-
|
|
|
- nss_init, /* init */
|
|
|
- nss_cleanup, /* cleanup */
|
|
|
- nss_version, /* version */
|
|
|
- Curl_none_check_cxn, /* check_cxn */
|
|
|
- /* NSS has no shutdown function provided and thus always fail */
|
|
|
- Curl_none_shutdown, /* shutdown */
|
|
|
- nss_data_pending, /* data_pending */
|
|
|
- nss_random, /* random */
|
|
|
- nss_cert_status_request, /* cert_status_request */
|
|
|
- nss_connect, /* connect */
|
|
|
- nss_connect_nonblocking, /* connect_nonblocking */
|
|
|
- Curl_ssl_get_select_socks, /* getsock */
|
|
|
- nss_get_internals, /* get_internals */
|
|
|
- nss_close, /* close_one */
|
|
|
- Curl_none_close_all, /* close_all */
|
|
|
- /* NSS has its own session ID cache */
|
|
|
- Curl_none_session_free, /* session_free */
|
|
|
- Curl_none_set_engine, /* set_engine */
|
|
|
- Curl_none_set_engine_default, /* set_engine_default */
|
|
|
- Curl_none_engines_list, /* engines_list */
|
|
|
- nss_false_start, /* false_start */
|
|
|
- nss_sha256sum, /* sha256sum */
|
|
|
- nss_attach_data, /* associate_connection */
|
|
|
- nss_detach_data, /* disassociate_connection */
|
|
|
- NULL, /* free_multi_ssl_backend_data */
|
|
|
- nss_recv, /* recv decrypted data */
|
|
|
- nss_send, /* send data to encrypt */
|
|
|
-};
|
|
|
-
|
|
|
-#endif /* USE_NSS */
|
Daniel Stenberg