| /* ssl.c |
| * |
| * Copyright (C) 2006-2012 Sawtooth Consulting Ltd. |
| * |
| * This file is part of CyaSSL. |
| * |
| * CyaSSL is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * CyaSSL is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #ifdef HAVE_ERRNO_H |
| #include <errno.h> |
| #endif |
| |
| #define TRUE 1 |
| #define FALSE 0 |
| |
| #include <cyassl/ssl.h> |
| #include <cyassl/internal.h> |
| #include <cyassl/error.h> |
| #include <cyassl/ctaocrypt/coding.h> |
| |
| #if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER) |
| #include <cyassl/openssl/evp.h> |
| #endif |
| |
| #ifdef OPENSSL_EXTRA |
| /* openssl headers begin */ |
| #include <cyassl/openssl/hmac.h> |
| #include <cyassl/openssl/crypto.h> |
| #include <cyassl/openssl/des.h> |
| #include <cyassl/openssl/bn.h> |
| #include <cyassl/openssl/dh.h> |
| #include <cyassl/openssl/rsa.h> |
| #include <cyassl/openssl/pem.h> |
| /* openssl headers end, cyassl internal headers next */ |
| #include <cyassl/ctaocrypt/hmac.h> |
| #include <cyassl/ctaocrypt/random.h> |
| #include <cyassl/ctaocrypt/des3.h> |
| #include <cyassl/ctaocrypt/md4.h> |
| #include <cyassl/ctaocrypt/md5.h> |
| #include <cyassl/ctaocrypt/arc4.h> |
| #ifdef CYASSL_SHA512 |
| #include <cyassl/ctaocrypt/sha512.h> |
| #endif |
| #endif |
| |
| #ifndef NO_FILESYSTEM |
| #if !defined(USE_WINDOWS_API) && !defined(NO_CYASSL_DIR) |
| #include <dirent.h> |
| #endif |
| #endif /* NO_FILESYSTEM */ |
| |
| |
| #ifndef min |
| |
| static INLINE word32 min(word32 a, word32 b) |
| { |
| return a > b ? b : a; |
| } |
| |
| #endif /* min */ |
| |
| |
| char* mystrnstr(const char* s1, const char* s2, unsigned int n) |
| { |
| unsigned int s2_len = XSTRLEN(s2); |
| |
| if (s2_len == 0) |
| return (char*)s1; |
| |
| while (n >= s2_len && s1[0]) { |
| if (s1[0] == s2[0]) |
| if (XMEMCMP(s1, s2, s2_len) == 0) |
| return (char*)s1; |
| s1++; |
| n--; |
| } |
| |
| return NULL; |
| } |
| |
| |
| CYASSL_CTX* CyaSSL_CTX_new(CYASSL_METHOD* method) |
| { |
| CYASSL_CTX* ctx = NULL; |
| |
| CYASSL_ENTER("CYASSL_CTX_new"); |
| |
| if (method == NULL) |
| return ctx; |
| |
| ctx = (CYASSL_CTX*) XMALLOC(sizeof(CYASSL_CTX), 0, DYNAMIC_TYPE_CTX); |
| if (ctx) { |
| if (InitSSL_Ctx(ctx, method) < 0) { |
| CYASSL_MSG("Init CTX failed"); |
| CyaSSL_CTX_free(ctx); |
| ctx = NULL; |
| } |
| } |
| |
| CYASSL_LEAVE("CYASSL_CTX_new", 0); |
| return ctx; |
| } |
| |
| |
| void CyaSSL_CTX_free(CYASSL_CTX* ctx) |
| { |
| CYASSL_ENTER("SSL_CTX_free"); |
| if (ctx) |
| FreeSSL_Ctx(ctx); |
| CYASSL_LEAVE("SSL_CTX_free", 0); |
| } |
| |
| |
| CYASSL* CyaSSL_new(CYASSL_CTX* ctx) |
| { |
| CYASSL* ssl = NULL; |
| |
| CYASSL_ENTER("SSL_new"); |
| |
| if (ctx == NULL) |
| return ssl; |
| |
| ssl = (CYASSL*) XMALLOC(sizeof(CYASSL), ctx->heap,DYNAMIC_TYPE_SSL); |
| if (ssl) |
| if (InitSSL(ssl, ctx) < 0) { |
| FreeSSL(ssl); |
| ssl = 0; |
| } |
| |
| CYASSL_LEAVE("SSL_new", 0); |
| return ssl; |
| } |
| |
| |
| void CyaSSL_free(CYASSL* ssl) |
| { |
| CYASSL_ENTER("SSL_free"); |
| if (ssl) |
| FreeSSL(ssl); |
| CYASSL_LEAVE("SSL_free", 0); |
| } |
| |
| |
| int CyaSSL_set_fd(CYASSL* ssl, int fd) |
| { |
| CYASSL_ENTER("SSL_set_fd"); |
| ssl->rfd = fd; /* not used directly to allow IO callbacks */ |
| ssl->wfd = fd; |
| |
| ssl->IOCB_ReadCtx = &ssl->rfd; |
| ssl->IOCB_WriteCtx = &ssl->wfd; |
| |
| CYASSL_LEAVE("SSL_set_fd", SSL_SUCCESS); |
| return SSL_SUCCESS; |
| } |
| |
| |
| int CyaSSL_get_fd(const CYASSL* ssl) |
| { |
| CYASSL_ENTER("SSL_get_fd"); |
| CYASSL_LEAVE("SSL_get_fd", ssl->rfd); |
| return ssl->rfd; |
| } |
| |
| |
| int CyaSSL_negotiate(CYASSL* ssl) |
| { |
| int err = SSL_FATAL_ERROR; |
| |
| CYASSL_ENTER("CyaSSL_negotiate"); |
| #ifndef NO_CYASSL_SERVER |
| if (ssl->options.side == SERVER_END) |
| err = CyaSSL_accept(ssl); |
| #endif |
| |
| #ifndef NO_CYASSL_CLIENT |
| if (ssl->options.side == CLIENT_END) |
| err = CyaSSL_connect(ssl); |
| #endif |
| |
| CYASSL_LEAVE("CyaSSL_negotiate", err); |
| |
| if (err == SSL_SUCCESS) |
| return 0; |
| else |
| return err; |
| } |
| |
| |
| /* server Diffie-Hellman parameters */ |
| int CyaSSL_SetTmpDH(CYASSL* ssl, const unsigned char* p, int pSz, |
| const unsigned char* g, int gSz) |
| { |
| byte havePSK = 0; |
| |
| CYASSL_ENTER("CyaSSL_SetTmpDH"); |
| if (ssl == NULL || p == NULL || g == NULL) return BAD_FUNC_ARG; |
| |
| if (ssl->options.side != SERVER_END) |
| return SIDE_ERROR; |
| |
| if (ssl->buffers.serverDH_P.buffer && ssl->buffers.weOwnDH) |
| XFREE(ssl->buffers.serverDH_P.buffer, ssl->ctx->heap, DYNAMIC_TYPE_DH); |
| if (ssl->buffers.serverDH_G.buffer && ssl->buffers.weOwnDH) |
| XFREE(ssl->buffers.serverDH_G.buffer, ssl->ctx->heap, DYNAMIC_TYPE_DH); |
| |
| ssl->buffers.weOwnDH = 1; /* SSL owns now */ |
| ssl->buffers.serverDH_P.buffer = (byte*)XMALLOC(pSz, ssl->ctx->heap, |
| DYNAMIC_TYPE_DH); |
| if (ssl->buffers.serverDH_P.buffer == NULL) |
| return MEMORY_E; |
| |
| ssl->buffers.serverDH_G.buffer = (byte*)XMALLOC(gSz, ssl->ctx->heap, |
| DYNAMIC_TYPE_DH); |
| if (ssl->buffers.serverDH_G.buffer == NULL) { |
| XFREE(ssl->buffers.serverDH_P.buffer, ssl->ctx->heap, DYNAMIC_TYPE_DH); |
| return MEMORY_E; |
| } |
| |
| ssl->buffers.serverDH_P.length = pSz; |
| ssl->buffers.serverDH_G.length = gSz; |
| |
| XMEMCPY(ssl->buffers.serverDH_P.buffer, p, pSz); |
| XMEMCPY(ssl->buffers.serverDH_G.buffer, g, gSz); |
| |
| ssl->options.haveDH = 1; |
| #ifndef NO_PSK |
| havePSK = ssl->options.havePSK; |
| #endif |
| InitSuites(&ssl->suites, ssl->version, ssl->options.haveDH, |
| havePSK, ssl->options.haveNTRU, ssl->options.haveECDSAsig, |
| ssl->options.haveStaticECC, ssl->options.side); |
| |
| CYASSL_LEAVE("CyaSSL_SetTmpDH", 0); |
| return 0; |
| } |
| |
| |
| int CyaSSL_write(CYASSL* ssl, const void* data, int sz) |
| { |
| int ret; |
| |
| CYASSL_ENTER("SSL_write()"); |
| |
| #ifdef HAVE_ERRNO_H |
| errno = 0; |
| #endif |
| |
| ret = SendData(ssl, data, sz); |
| |
| CYASSL_LEAVE("SSL_write()", ret); |
| |
| if (ret < 0) |
| return SSL_FATAL_ERROR; |
| else |
| return ret; |
| } |
| |
| |
| int CyaSSL_read(CYASSL* ssl, void* data, int sz) |
| { |
| int ret; |
| |
| CYASSL_ENTER("SSL_read()"); |
| |
| #ifdef HAVE_ERRNO_H |
| errno = 0; |
| #endif |
| |
| ret = ReceiveData(ssl, (byte*)data, min(sz, OUTPUT_RECORD_SIZE)); |
| |
| CYASSL_LEAVE("SSL_read()", ret); |
| |
| if (ret < 0) |
| return SSL_FATAL_ERROR; |
| else |
| return ret; |
| } |
| |
| |
| int CyaSSL_shutdown(CYASSL* ssl) |
| { |
| CYASSL_ENTER("SSL_shutdown()"); |
| |
| if (ssl->options.quietShutdown) { |
| CYASSL_MSG("quiet shutdown, no close notify sent"); |
| return 0; |
| } |
| |
| /* try to send close notify, not an error if can't */ |
| if (!ssl->options.isClosed && !ssl->options.connReset && |
| !ssl->options.sentNotify) { |
| ssl->error = SendAlert(ssl, alert_warning, close_notify); |
| if (ssl->error < 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.sentNotify = 1; /* don't send close_notify twice */ |
| } |
| |
| CYASSL_LEAVE("SSL_shutdown()", ssl->error); |
| |
| ssl->error = SSL_ERROR_SYSCALL; /* simulate OpenSSL behavior */ |
| |
| return 0; |
| } |
| |
| |
| int CyaSSL_get_error(CYASSL* ssl, int ret) |
| { |
| CYASSL_ENTER("SSL_get_error"); |
| CYASSL_LEAVE("SSL_get_error", ssl->error); |
| if (ret > 0) |
| return SSL_ERROR_NONE; |
| |
| if (ssl->error == WANT_READ) |
| return SSL_ERROR_WANT_READ; /* convert to OpenSSL type */ |
| else if (ssl->error == WANT_WRITE) |
| return SSL_ERROR_WANT_WRITE; /* convert to OpenSSL type */ |
| else if (ssl->error == ZERO_RETURN) |
| return SSL_ERROR_ZERO_RETURN; /* convert to OpenSSL type */ |
| return ssl->error; |
| } |
| |
| |
| int CyaSSL_want_read(CYASSL* ssl) |
| { |
| CYASSL_ENTER("SSL_want_read"); |
| if (ssl->error == WANT_READ) |
| return 1; |
| |
| return 0; |
| } |
| |
| |
| int CyaSSL_want_write(CYASSL* ssl) |
| { |
| CYASSL_ENTER("SSL_want_write"); |
| if (ssl->error == WANT_WRITE) |
| return 1; |
| |
| return 0; |
| } |
| |
| |
| char* CyaSSL_ERR_error_string(unsigned long errNumber, char* data) |
| { |
| static const char* msg = "Please supply a buffer for error string"; |
| |
| CYASSL_ENTER("ERR_error_string"); |
| if (data) { |
| SetErrorString(errNumber, data); |
| return data; |
| } |
| |
| return (char*)msg; |
| } |
| |
| |
| void CyaSSL_ERR_error_string_n(unsigned long e, char* buf, unsigned long len) |
| { |
| CYASSL_ENTER("CyaSSL_ERR_error_string_n"); |
| if (len) CyaSSL_ERR_error_string(e, buf); |
| } |
| |
| |
| CYASSL_CERT_MANAGER* CyaSSL_CertManagerNew(void) |
| { |
| CYASSL_CERT_MANAGER* cm = NULL; |
| |
| CYASSL_ENTER("CyaSSL_CertManagerNew"); |
| |
| cm = (CYASSL_CERT_MANAGER*) XMALLOC(sizeof(CYASSL_CERT_MANAGER), 0, |
| DYNAMIC_TYPE_CERT_MANAGER); |
| if (cm) { |
| cm->caList = NULL; |
| cm->heap = NULL; |
| cm->caCacheCallback = NULL; |
| cm->crl = NULL; |
| cm->crlEnabled = 0; |
| cm->crlCheckAll = 0; |
| cm->cbMissingCRL = NULL; |
| |
| if (InitMutex(&cm->caLock) != 0) { |
| CYASSL_MSG("Bad mutex init"); |
| CyaSSL_CertManagerFree(cm); |
| return NULL; |
| } |
| } |
| |
| return cm; |
| } |
| |
| |
| void CyaSSL_CertManagerFree(CYASSL_CERT_MANAGER* cm) |
| { |
| CYASSL_ENTER("CyaSSL_CertManagerFree"); |
| |
| if (cm) { |
| #ifdef HAVE_CRL |
| if (cm->crl) |
| FreeCRL(cm->crl); |
| #endif |
| FreeSigners(cm->caList, NULL); |
| FreeMutex(&cm->caLock); |
| XFREE(cm, NULL, DYNAMIC_TYPE_CERT_MANAGER); |
| } |
| |
| } |
| |
| |
| |
| |
| #ifndef NO_FILESYSTEM |
| |
| void CyaSSL_ERR_print_errors_fp(FILE* fp, int err) |
| { |
| char data[MAX_ERROR_SZ + 1]; |
| |
| CYASSL_ENTER("CyaSSL_ERR_print_errors_fp"); |
| SetErrorString(err, data); |
| fprintf(fp, "%s", data); |
| } |
| |
| #endif |
| |
| |
| int CyaSSL_pending(CYASSL* ssl) |
| { |
| CYASSL_ENTER("SSL_pending"); |
| return ssl->buffers.clearOutputBuffer.length; |
| } |
| |
| |
| /* trun on handshake group messages for context */ |
| int CyaSSL_CTX_set_group_messages(CYASSL_CTX* ctx) |
| { |
| if (ctx == NULL) |
| return BAD_FUNC_ARG; |
| |
| ctx->groupMessages = 1; |
| |
| return SSL_SUCCESS; |
| } |
| |
| |
| #ifndef NO_CYASSL_CLIENT |
| /* connect enough to get peer cert chain */ |
| int CyaSSL_connect_cert(CYASSL* ssl) |
| { |
| int ret; |
| |
| if (ssl == NULL) |
| return SSL_FAILURE; |
| |
| ssl->options.certOnly = 1; |
| ret = CyaSSL_connect(ssl); |
| ssl->options.certOnly = 0; |
| |
| return ret; |
| } |
| #endif |
| |
| |
| /* trun on handshake group messages for ssl object */ |
| int CyaSSL_set_group_messages(CYASSL* ssl) |
| { |
| if (ssl == NULL) |
| return BAD_FUNC_ARG; |
| |
| ssl->options.groupMessages = 1; |
| |
| return SSL_SUCCESS; |
| } |
| |
| |
| int CyaSSL_SetVersion(CYASSL* ssl, int version) |
| { |
| byte havePSK = 0; |
| |
| CYASSL_ENTER("CyaSSL_SetVersion"); |
| |
| if (ssl == NULL) { |
| CYASSL_MSG("Bad function argument"); |
| return BAD_FUNC_ARG; |
| } |
| |
| switch (version) { |
| case CYASSL_SSLV3: |
| ssl->version = MakeSSLv3(); |
| break; |
| |
| #ifndef NO_TLS |
| case CYASSL_TLSV1: |
| ssl->version = MakeTLSv1(); |
| break; |
| |
| case CYASSL_TLSV1_1: |
| ssl->version = MakeTLSv1_1(); |
| break; |
| |
| case CYASSL_TLSV1_2: |
| ssl->version = MakeTLSv1_2(); |
| break; |
| #endif |
| |
| default: |
| CYASSL_MSG("Bad function argument"); |
| return BAD_FUNC_ARG; |
| } |
| |
| #ifndef NO_PSK |
| havePSK = ssl->options.havePSK; |
| #endif |
| |
| InitSuites(&ssl->suites, ssl->version, ssl->options.haveDH, havePSK, |
| ssl->options.haveNTRU, ssl->options.haveECDSAsig, |
| ssl->options.haveStaticECC, ssl->options.side); |
| |
| return SSL_SUCCESS; |
| } |
| |
| |
| /* does CA already exist on signer list */ |
| int AlreadySigner(CYASSL_CERT_MANAGER* cm, byte* hash) |
| { |
| Signer* signers; |
| int ret = 0; |
| |
| if (LockMutex(&cm->caLock) != 0) |
| return ret; |
| signers = cm->caList; |
| while (signers) { |
| if (XMEMCMP(hash, signers->hash, SHA_DIGEST_SIZE) == 0) { |
| ret = 1; |
| break; |
| } |
| signers = signers->next; |
| } |
| UnLockMutex(&cm->caLock); |
| |
| return ret; |
| } |
| |
| |
| /* return CA if found, otherwise NULL */ |
| Signer* GetCA(void* vp, byte* hash) |
| { |
| CYASSL_CERT_MANAGER* cm = (CYASSL_CERT_MANAGER*)vp; |
| Signer* ret = NULL; |
| Signer* signers; |
| |
| if (cm == NULL) |
| return NULL; |
| |
| signers = cm->caList; |
| |
| if (LockMutex(&cm->caLock) != 0) |
| return ret; |
| while (signers) { |
| if (XMEMCMP(hash, signers->hash, SHA_DIGEST_SIZE) == 0) { |
| ret = signers; |
| break; |
| } |
| signers = signers->next; |
| } |
| UnLockMutex(&cm->caLock); |
| |
| return ret; |
| } |
| |
| |
| /* owns der, internal now uses too */ |
| /* type flag ids from user or from chain received during verify |
| don't allow chain ones to be added w/o isCA extension */ |
| int AddCA(CYASSL_CERT_MANAGER* cm, buffer der, int type, int verify) |
| { |
| int ret; |
| DecodedCert cert; |
| Signer* signer = 0; |
| |
| CYASSL_MSG("Adding a CA"); |
| InitDecodedCert(&cert, der.buffer, der.length, cm->heap); |
| ret = ParseCert(&cert, CA_TYPE, verify, cm); |
| CYASSL_MSG(" Parsed new CA"); |
| |
| if (ret == 0 && cert.isCA == 0 && type != CYASSL_USER_CA) { |
| CYASSL_MSG(" Can't add as CA if not actually one"); |
| ret = NOT_CA_ERROR; |
| } |
| else if (ret == 0 && AlreadySigner(cm, cert.subjectHash)) { |
| CYASSL_MSG(" Already have this CA, not adding again"); |
| (void)ret; |
| } |
| else if (ret == 0) { |
| /* take over signer parts */ |
| signer = MakeSigner(cm->heap); |
| if (!signer) |
| ret = MEMORY_ERROR; |
| else { |
| signer->keyOID = cert.keyOID; |
| signer->publicKey = cert.publicKey; |
| signer->pubKeySize = cert.pubKeySize; |
| signer->name = cert.subjectCN; |
| XMEMCPY(signer->hash, cert.subjectHash, SHA_DIGEST_SIZE); |
| signer->next = NULL; /* in case lock fails */ |
| |
| cert.publicKey = 0; /* don't free here */ |
| cert.subjectCN = 0; |
| |
| if (LockMutex(&cm->caLock) == 0) { |
| signer->next = cm->caList; |
| cm->caList = signer; /* takes ownership */ |
| UnLockMutex(&cm->caLock); |
| if (cm->caCacheCallback) |
| cm->caCacheCallback(der.buffer, (int)der.length, type); |
| } |
| else { |
| CYASSL_MSG(" CA Mutex Lock failed"); |
| ret = BAD_MUTEX_ERROR; |
| FreeSigners(signer, cm->heap); |
| } |
| } |
| } |
| |
| CYASSL_MSG(" Freeing Parsed CA"); |
| FreeDecodedCert(&cert); |
| CYASSL_MSG(" Freeing der CA"); |
| XFREE(der.buffer, ctx->heap, DYNAMIC_TYPE_CA); |
| CYASSL_MSG(" OK Freeing der CA"); |
| |
| CYASSL_LEAVE("AddCA", ret); |
| if (ret == 0) return SSL_SUCCESS; |
| return ret; |
| } |
| |
| |
| #ifndef NO_SESSION_CACHE |
| |
| /* basic config gives a cache with 33 sessions, adequate for clients and |
| embedded servers |
| |
| MEDIUM_SESSION_CACHE allows 1055 sessions, adequate for servers that |
| aren't under heavy load, basically allows 200 new sessions per minute |
| |
| BIG_SESSION_CACHE yields 20,0027 sessions |
| |
| HUGE_SESSION_CACHE yields 65,791 sessions, for servers under heavy load, |
| allows over 13,000 new sessions per minute or over 200 new sessions per |
| second |
| |
| SMALL_SESSION_CACHE only stores 6 sessions, good for embedded clients |
| or systems where the default of nearly 3kB is too much RAM, this define |
| uses less than 500 bytes RAM |
| */ |
| #ifdef HUGE_SESSION_CACHE |
| #define SESSIONS_PER_ROW 11 |
| #define SESSION_ROWS 5981 |
| #elif defined(BIG_SESSION_CACHE) |
| #define SESSIONS_PER_ROW 7 |
| #define SESSION_ROWS 2861 |
| #elif defined(MEDIUM_SESSION_CACHE) |
| #define SESSIONS_PER_ROW 5 |
| #define SESSION_ROWS 211 |
| #elif defined(SMALL_SESSION_CACHE) |
| #define SESSIONS_PER_ROW 2 |
| #define SESSION_ROWS 3 |
| #else |
| #define SESSIONS_PER_ROW 3 |
| #define SESSION_ROWS 11 |
| #endif |
| |
| typedef struct SessionRow { |
| int nextIdx; /* where to place next one */ |
| int totalCount; /* sessions ever on this row */ |
| CYASSL_SESSION Sessions[SESSIONS_PER_ROW]; |
| } SessionRow; |
| |
| static SessionRow SessionCache[SESSION_ROWS]; |
| |
| static CyaSSL_Mutex session_mutex; /* SessionCache mutex */ |
| |
| #endif /* NO_SESSION_CACHE */ |
| |
| |
| /* Remove PEM header/footer, convert to ASN1, store any encrypted data |
| info->consumed tracks of PEM bytes consumed in case multiple parts */ |
| int PemToDer(const unsigned char* buff, long sz, int type, |
| buffer* der, void* heap, EncryptedInfo* info, int* eccKey) |
| { |
| char header[PEM_LINE_LEN]; |
| char footer[PEM_LINE_LEN]; |
| char* headerEnd; |
| char* footerEnd; |
| char* consumedEnd; |
| long neededSz; |
| int pkcs8 = 0; |
| int pkcs8Enc = 0; |
| int dynamicType = 0; |
| |
| (void)heap; |
| (void)dynamicType; |
| (void)pkcs8Enc; |
| |
| if (type == CERT_TYPE || type == CA_TYPE) { |
| XSTRNCPY(header, "-----BEGIN CERTIFICATE-----", sizeof(header)); |
| XSTRNCPY(footer, "-----END CERTIFICATE-----", sizeof(footer)); |
| dynamicType = (type == CA_TYPE) ? DYNAMIC_TYPE_CA : |
| DYNAMIC_TYPE_CERT; |
| } else if (type == DH_PARAM_TYPE) { |
| XSTRNCPY(header, "-----BEGIN DH PARAMETERS-----", sizeof(header)); |
| XSTRNCPY(footer, "-----END DH PARAMETERS-----", sizeof(footer)); |
| dynamicType = DYNAMIC_TYPE_KEY; |
| } else if (type == CRL_TYPE) { |
| XSTRNCPY(header, "-----BEGIN X509 CRL-----", sizeof(header)); |
| XSTRNCPY(footer, "-----END X509 CRL-----", sizeof(footer)); |
| dynamicType = DYNAMIC_TYPE_CRL; |
| } else { |
| XSTRNCPY(header, "-----BEGIN RSA PRIVATE KEY-----", sizeof(header)); |
| XSTRNCPY(footer, "-----END RSA PRIVATE KEY-----", sizeof(footer)); |
| dynamicType = DYNAMIC_TYPE_KEY; |
| } |
| |
| /* find header */ |
| headerEnd = XSTRNSTR((char*)buff, header, sz); |
| if (!headerEnd && type == PRIVATEKEY_TYPE) { /* may be pkcs8 */ |
| XSTRNCPY(header, "-----BEGIN PRIVATE KEY-----", sizeof(header)); |
| XSTRNCPY(footer, "-----END PRIVATE KEY-----", sizeof(footer)); |
| |
| headerEnd = XSTRNSTR((char*)buff, header, sz); |
| if (headerEnd) |
| pkcs8 = 1; |
| else { |
| XSTRNCPY(header, "-----BEGIN ENCRYPTED PRIVATE KEY-----", |
| sizeof(header)); |
| XSTRNCPY(footer, "-----END ENCRYPTED PRIVATE KEY-----", |
| sizeof(footer)); |
| |
| headerEnd = XSTRNSTR((char*)buff, header, sz); |
| if (headerEnd) |
| pkcs8Enc = 1; |
| } |
| } |
| if (!headerEnd && type == PRIVATEKEY_TYPE) { /* may be ecc */ |
| XSTRNCPY(header, "-----BEGIN EC PRIVATE KEY-----", sizeof(header)); |
| XSTRNCPY(footer, "-----END EC PRIVATE KEY-----", sizeof(footer)); |
| |
| headerEnd = XSTRNSTR((char*)buff, header, sz); |
| if (headerEnd) |
| *eccKey = 1; |
| } |
| if (!headerEnd && type == PRIVATEKEY_TYPE) { /* may be dsa */ |
| XSTRNCPY(header, "-----BEGIN DSA PRIVATE KEY-----", sizeof(header)); |
| XSTRNCPY(footer, "-----END DSA PRIVATE KEY-----", sizeof(footer)); |
| |
| headerEnd = XSTRNSTR((char*)buff, header, sz); |
| } |
| if (!headerEnd) |
| return SSL_BAD_FILE; |
| headerEnd += XSTRLEN(header); |
| |
| /* get next line */ |
| if (headerEnd[0] == '\n') |
| headerEnd++; |
| else if (headerEnd[1] == '\n') |
| headerEnd += 2; |
| else |
| return SSL_BAD_FILE; |
| |
| #if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER) |
| { |
| /* remove encrypted header if there */ |
| char encHeader[] = "Proc-Type"; |
| char* line = XSTRNSTR((char*)buff, encHeader, PEM_LINE_LEN); |
| if (line) { |
| char* newline; |
| char* finish; |
| char* start = XSTRNSTR(line, "DES", PEM_LINE_LEN); |
| |
| if (!start) |
| start = XSTRNSTR(line, "AES", PEM_LINE_LEN); |
| |
| if (!start) return SSL_BAD_FILE; |
| if (!info) return SSL_BAD_FILE; |
| |
| finish = XSTRNSTR(start, ",", PEM_LINE_LEN); |
| |
| if (start && finish && (start < finish)) { |
| newline = XSTRNSTR(finish, "\r", PEM_LINE_LEN); |
| |
| XMEMCPY(info->name, start, finish - start); |
| info->name[finish - start] = 0; |
| XMEMCPY(info->iv, finish + 1, sizeof(info->iv)); |
| |
| if (!newline) newline = XSTRNSTR(finish, "\n", PEM_LINE_LEN); |
| if (newline && (newline > finish)) { |
| info->ivSz = (word32)(newline - (finish + 1)); |
| info->set = 1; |
| } |
| else |
| return SSL_BAD_FILE; |
| } |
| else |
| return SSL_BAD_FILE; |
| |
| /* eat blank line */ |
| while (*newline == '\r' || *newline == '\n') |
| newline++; |
| headerEnd = newline; |
| } |
| } |
| #endif /* OPENSSL_EXTRA || HAVE_WEBSERVER */ |
| |
| /* find footer */ |
| footerEnd = XSTRNSTR((char*)buff, footer, sz); |
| if (!footerEnd) return SSL_BAD_FILE; |
| |
| consumedEnd = footerEnd + XSTRLEN(footer); |
| |
| /* get next line */ |
| if (consumedEnd[0] == '\n') |
| consumedEnd++; |
| else if (consumedEnd[1] == '\n') |
| consumedEnd += 2; |
| else |
| return SSL_BAD_FILE; |
| |
| if (info) |
| info->consumed = (long)(consumedEnd - (char*)buff); |
| |
| /* set up der buffer */ |
| neededSz = (long)(footerEnd - headerEnd); |
| if (neededSz > sz || neededSz < 0) return SSL_BAD_FILE; |
| der->buffer = (byte*) XMALLOC(neededSz, heap, dynamicType); |
| if (!der->buffer) return MEMORY_ERROR; |
| der->length = neededSz; |
| |
| if (Base64_Decode((byte*)headerEnd, neededSz, der->buffer, |
| &der->length) < 0) |
| return SSL_BAD_FILE; |
| |
| if (pkcs8) |
| return ToTraditional(der->buffer, der->length); |
| |
| #ifdef OPENSSL_EXTRA |
| if (pkcs8Enc) { |
| int passwordSz; |
| char password[80]; |
| |
| if (!info->ctx || !info->ctx->passwd_cb) |
| return SSL_BAD_FILE; /* no callback error */ |
| passwordSz = info->ctx->passwd_cb(password, sizeof(password), 0, |
| info->ctx->userdata); |
| return ToTraditionalEnc(der->buffer, der->length, password, |
| passwordSz); |
| } |
| #endif |
| |
| return 0; |
| } |
| |
| |
| /* process the buffer buff, legnth sz, into ctx of format and type |
| used tracks bytes consumed, userChain specifies a user cert chain |
| to pass during the handshake */ |
| static int ProcessBuffer(CYASSL_CTX* ctx, const unsigned char* buff, |
| long sz, int format, int type, CYASSL* ssl, |
| long* used, int userChain) |
| { |
| EncryptedInfo info; |
| buffer der; /* holds DER or RAW (for NTRU) */ |
| int dynamicType = 0; |
| int eccKey = 0; |
| |
| info.set = 0; |
| info.ctx = ctx; |
| info.consumed = 0; |
| der.buffer = 0; |
| |
| (void)dynamicType; |
| |
| if (used) |
| *used = sz; /* used bytes default to sz, PEM chain may shorten*/ |
| |
| if (format != SSL_FILETYPE_ASN1 && format != SSL_FILETYPE_PEM |
| && format != SSL_FILETYPE_RAW) |
| return SSL_BAD_FILETYPE; |
| |
| if (type == CA_TYPE) |
| dynamicType = DYNAMIC_TYPE_CA; |
| else if (type == CERT_TYPE) |
| dynamicType = DYNAMIC_TYPE_CERT; |
| else |
| dynamicType = DYNAMIC_TYPE_KEY; |
| |
| if (format == SSL_FILETYPE_PEM) { |
| int ret = PemToDer(buff, sz, type, &der, ctx->heap, &info, &eccKey); |
| if (ret < 0) { |
| XFREE(der.buffer, ctx->heap, dynamicType); |
| return ret; |
| } |
| if (used) |
| *used = info.consumed; |
| /* we may have a user cert chain, try to consume */ |
| if (userChain && type == CERT_TYPE && info.consumed < sz) { |
| byte staticBuffer[FILE_BUFFER_SIZE]; /* tmp chain buffer */ |
| byte* chainBuffer = staticBuffer; |
| int dynamicBuffer = 0; |
| word32 bufferSz = sizeof(staticBuffer); |
| long consumed = info.consumed; |
| word32 idx = 0; |
| |
| if ( (sz - consumed) > (int)bufferSz) { |
| CYASSL_MSG("Growing Tmp Chain Buffer"); |
| bufferSz = sz - consumed; /* will shrink to actual size */ |
| chainBuffer = (byte*)XMALLOC(bufferSz, ctx->heap, |
| DYNAMIC_FILE_TYPE); |
| if (chainBuffer == NULL) { |
| XFREE(der.buffer, ctx->heap, dynamicType); |
| return MEMORY_E; |
| } |
| dynamicBuffer = 1; |
| } |
| |
| CYASSL_MSG("Processing Cert Chain"); |
| while (consumed < sz) { |
| long left; |
| buffer part; |
| info.consumed = 0; |
| part.buffer = 0; |
| |
| ret = PemToDer(buff + consumed, sz - consumed, type, &part, |
| ctx->heap, &info, &eccKey); |
| if (ret == 0) { |
| if ( (idx + part.length) > bufferSz) { |
| CYASSL_MSG(" Cert Chain bigger than buffer"); |
| ret = BUFFER_E; |
| } |
| else { |
| c32to24(part.length, &chainBuffer[idx]); |
| idx += CERT_HEADER_SZ; |
| XMEMCPY(&chainBuffer[idx], part.buffer,part.length); |
| idx += part.length; |
| consumed += info.consumed; |
| if (used) |
| *used += info.consumed; |
| } |
| } |
| |
| XFREE(part.buffer, ctx->heap, dynamicType); |
| if (ret < 0) { |
| CYASSL_MSG(" Error in Cert in Chain"); |
| XFREE(der.buffer, ctx->heap, dynamicType); |
| return ret; |
| } |
| CYASSL_MSG(" Consumed another Cert in Chain"); |
| |
| left = sz - consumed; |
| if (left > 0 && left < CERT_MIN_SIZE) { |
| CYASSL_MSG(" Non Cert at end of file"); |
| break; |
| } |
| } |
| CYASSL_MSG("Finished Processing Cert Chain"); |
| ctx->certChain.buffer = (byte*)XMALLOC(idx, ctx->heap, |
| dynamicType); |
| if (ctx->certChain.buffer) { |
| ctx->certChain.length = idx; |
| XMEMCPY(ctx->certChain.buffer, chainBuffer, idx); |
| } |
| if (dynamicBuffer) |
| XFREE(chainBuffer, ctx->heap, DYNAMIC_FILE_TYPE); |
| if (ctx->certChain.buffer == NULL) { |
| XFREE(der.buffer, ctx->heap, dynamicType); |
| return MEMORY_E; |
| } |
| } |
| } |
| else { /* ASN1 (DER) or RAW (NTRU) */ |
| der.buffer = (byte*) XMALLOC(sz, ctx->heap, dynamicType); |
| if (!der.buffer) return MEMORY_ERROR; |
| XMEMCPY(der.buffer, buff, sz); |
| der.length = sz; |
| } |
| |
| #if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER) |
| if (info.set) { |
| /* decrypt */ |
| char password[80]; |
| int passwordSz; |
| int ret; |
| |
| byte key[AES_256_KEY_SIZE]; |
| byte iv[AES_IV_SIZE]; |
| |
| if (!ctx->passwd_cb) { |
| XFREE(der.buffer, ctx->heap, dynamicType); |
| return NO_PASSWORD; |
| } |
| |
| /* use file's salt for key derivation, hex decode first */ |
| if (Base16_Decode(info.iv, info.ivSz, info.iv, &info.ivSz) != 0) { |
| XFREE(der.buffer, ctx->heap, dynamicType); |
| return ASN_INPUT_E; |
| } |
| |
| passwordSz = ctx->passwd_cb(password, sizeof(password), 0, |
| ctx->userdata); |
| if ( (ret = EVP_BytesToKey(info.name, "MD5", info.iv, |
| (byte*)password, passwordSz, 1, key, iv)) <= 0) { |
| XFREE(der.buffer, ctx->heap, dynamicType); |
| return ret; |
| } |
| |
| if (XSTRNCMP(info.name, "DES-CBC", 7) == 0) { |
| Des enc; |
| Des_SetKey(&enc, key, info.iv, DES_DECRYPTION); |
| Des_CbcDecrypt(&enc, der.buffer, der.buffer, der.length); |
| } |
| else if (XSTRNCMP(info.name, "DES-EDE3-CBC", 13) == 0) { |
| Des3 enc; |
| Des3_SetKey(&enc, key, info.iv, DES_DECRYPTION); |
| Des3_CbcDecrypt(&enc, der.buffer, der.buffer, der.length); |
| } |
| else if (XSTRNCMP(info.name, "AES-128-CBC", 13) == 0) { |
| Aes enc; |
| AesSetKey(&enc, key, AES_128_KEY_SIZE, info.iv, AES_DECRYPTION); |
| AesCbcDecrypt(&enc, der.buffer, der.buffer, der.length); |
| } |
| else if (XSTRNCMP(info.name, "AES-192-CBC", 13) == 0) { |
| Aes enc; |
| AesSetKey(&enc, key, AES_192_KEY_SIZE, info.iv, AES_DECRYPTION); |
| AesCbcDecrypt(&enc, der.buffer, der.buffer, der.length); |
| } |
| else if (XSTRNCMP(info.name, "AES-256-CBC", 13) == 0) { |
| Aes enc; |
| AesSetKey(&enc, key, AES_256_KEY_SIZE, info.iv, AES_DECRYPTION); |
| AesCbcDecrypt(&enc, der.buffer, der.buffer, der.length); |
| } |
| else { |
| XFREE(der.buffer, ctx->heap, dynamicType); |
| return SSL_BAD_FILE; |
| } |
| } |
| #endif /* OPENSSL_EXTRA || HAVE_WEBSERVER */ |
| |
| if (type == CA_TYPE) |
| return AddCA(ctx->cm, der, CYASSL_USER_CA, ctx->verifyPeer); |
| /* takes der over */ |
| else if (type == CERT_TYPE) { |
| if (ssl) { |
| if (ssl->buffers.weOwnCert && ssl->buffers.certificate.buffer) |
| XFREE(ssl->buffers.certificate.buffer, ctx->heap, |
| dynamicType); |
| ssl->buffers.certificate = der; |
| ssl->buffers.weOwnCert = 1; |
| } |
| else { |
| if (ctx->certificate.buffer) |
| XFREE(ctx->certificate.buffer, ctx->heap, dynamicType); |
| ctx->certificate = der; /* takes der over */ |
| } |
| } |
| else if (type == PRIVATEKEY_TYPE) { |
| if (ssl) { |
| if (ssl->buffers.weOwnKey && ssl->buffers.key.buffer) |
| XFREE(ssl->buffers.key.buffer, ctx->heap, dynamicType); |
| ssl->buffers.key = der; |
| ssl->buffers.weOwnKey = 1; |
| } |
| else { |
| if (ctx->privateKey.buffer) |
| XFREE(ctx->privateKey.buffer, ctx->heap, dynamicType); |
| ctx->privateKey = der; /* takes der over */ |
| } |
| } |
| else { |
| XFREE(der.buffer, ctx->heap, dynamicType); |
| return SSL_BAD_CERTTYPE; |
| } |
| |
| if (type == PRIVATEKEY_TYPE && format != SSL_FILETYPE_RAW) { |
| if (!eccKey) { |
| /* make sure RSA key can be used */ |
| RsaKey key; |
| word32 idx = 0; |
| |
| InitRsaKey(&key, 0); |
| if (RsaPrivateKeyDecode(der.buffer,&idx,&key,der.length) != 0) { |
| #ifdef HAVE_ECC |
| /* could have DER ECC (or pkcs8 ecc), no easy way to tell */ |
| eccKey = 1; /* so try it out */ |
| #endif |
| if (!eccKey) { |
| FreeRsaKey(&key); |
| return SSL_BAD_FILE; |
| } |
| } |
| FreeRsaKey(&key); |
| } |
| #ifdef HAVE_ECC |
| if (eccKey ) { |
| /* make sure ECC key can be used */ |
| word32 idx = 0; |
| ecc_key key; |
| |
| ecc_init(&key); |
| if (EccPrivateKeyDecode(der.buffer,&idx,&key,der.length) != 0) { |
| ecc_free(&key); |
| return SSL_BAD_FILE; |
| } |
| ecc_free(&key); |
| ctx->haveStaticECC = 1; |
| if (ssl) |
| ssl->options.haveStaticECC = 1; |
| } |
| #endif /* HAVE_ECC */ |
| } |
| else if (type == CERT_TYPE) { |
| int ret; |
| DecodedCert cert; |
| |
| CYASSL_MSG("Checking cert signature type"); |
| InitDecodedCert(&cert, der.buffer, der.length, ctx->heap); |
| |
| if ((ret = DecodeToKey(&cert, 0)) < 0) { |
| CYASSL_MSG("Decode to key failed"); |
| return SSL_BAD_FILE; |
| } |
| switch (cert.signatureOID) { |
| case CTC_SHAwECDSA: |
| case CTC_SHA256wECDSA: |
| case CTC_SHA384wECDSA: |
| case CTC_SHA512wECDSA: |
| CYASSL_MSG("ECDSA cert signature"); |
| ctx->haveECDSAsig = 1; |
| if (ssl) |
| ssl->options.haveECDSAsig = 1; |
| break; |
| default: |
| CYASSL_MSG("Not ECDSA cert signature"); |
| break; |
| } |
| |
| FreeDecodedCert(&cert); |
| } |
| |
| return SSL_SUCCESS; |
| } |
| |
| |
| |
| |
| /* CA PEM file for verification, may have multiple/chain certs to process */ |
| static int ProcessChainBuffer(CYASSL_CTX* ctx, const unsigned char* buff, |
| long sz, int format, int type, CYASSL* ssl) |
| { |
| long used = 0; |
| int ret = 0; |
| |
| CYASSL_MSG("Processing CA PEM file"); |
| while (used < sz) { |
| long consumed = 0; |
| long left; |
| |
| ret = ProcessBuffer(ctx, buff + used, sz - used, format, type, ssl, |
| &consumed, 0); |
| if (ret < 0) |
| break; |
| |
| CYASSL_MSG(" Processed a CA"); |
| used += consumed; |
| |
| left = sz - used; |
| if (left > 0 && left < CERT_MIN_SIZE) { /* non cert stuff at eof */ |
| CYASSL_MSG(" Non CA cert at eof"); |
| break; |
| } |
| } |
| return ret; |
| } |
| |
| |
| #ifndef NO_FILESYSTEM |
| |
| #ifndef MICRIUM |
| #define XFILE FILE |
| #define XFOPEN fopen |
| #define XFSEEK fseek |
| #define XFTELL ftell |
| #define XREWIND rewind |
| #define XFREAD fread |
| #define XFCLOSE fclose |
| #define XSEEK_END SEEK_END |
| #else |
| #include <fs.h> |
| #define XFILE FS_FILE |
| #define XFOPEN fs_fopen |
| #define XFSEEK fs_fseek |
| #define XFTELL fs_ftell |
| #define XREWIND fs_rewind |
| #define XFREAD fs_fread |
| #define XFCLOSE fs_fclose |
| #define XSEEK_END FS_SEEK_END |
| #endif |
| |
| |
| /* process a file with name fname into ctx of format and type |
| userChain specifies a user certificate chain to pass during handshake */ |
| int ProcessFile(CYASSL_CTX* ctx, const char* fname, int format, int type, |
| CYASSL* ssl, int userChain, CYASSL_CRL* crl) |
| { |
| byte staticBuffer[FILE_BUFFER_SIZE]; |
| byte* myBuffer = staticBuffer; |
| int dynamic = 0; |
| int ret; |
| long sz = 0; |
| XFILE* file = XFOPEN(fname, "rb"); |
| |
| (void)crl; |
| |
| if (!file) return SSL_BAD_FILE; |
| XFSEEK(file, 0, XSEEK_END); |
| sz = XFTELL(file); |
| XREWIND(file); |
| |
| if (sz > (long)sizeof(staticBuffer)) { |
| CYASSL_MSG("Getting dynamic buffer"); |
| myBuffer = (byte*) XMALLOC(sz, ctx->heap, DYNAMIC_TYPE_FILE); |
| if (myBuffer == NULL) { |
| XFCLOSE(file); |
| return SSL_BAD_FILE; |
| } |
| dynamic = 1; |
| } |
| |
| if ( (ret = XFREAD(myBuffer, sz, 1, file)) < 0) |
| ret = SSL_BAD_FILE; |
| else { |
| if (type == CA_TYPE && format == SSL_FILETYPE_PEM) |
| ret = ProcessChainBuffer(ctx, myBuffer, sz, format, type, ssl); |
| #ifdef HAVE_CRL |
| else if (type == CRL_TYPE) |
| ret = BufferLoadCRL(crl, myBuffer, sz, format); |
| #endif |
| else |
| ret = ProcessBuffer(ctx, myBuffer, sz, format, type, ssl, NULL, |
| userChain); |
| } |
| |
| XFCLOSE(file); |
| if (dynamic) XFREE(myBuffer, ctx->heap, DYNAMIC_TYPE_FILE); |
| |
| return ret; |
| } |
| |
| |
| /* loads file then loads each file in path, no c_rehash */ |
| int CyaSSL_CTX_load_verify_locations(CYASSL_CTX* ctx, const char* file, |
| const char* path) |
| { |
| int ret = SSL_SUCCESS; |
| |
| CYASSL_ENTER("CyaSSL_CTX_load_verify_locations"); |
| (void)path; |
| |
| if (ctx == NULL || (file == NULL && path == NULL) ) |
| return SSL_FAILURE; |
| |
| if (file) |
| ret = ProcessFile(ctx, file, SSL_FILETYPE_PEM, CA_TYPE, NULL, 0, NULL); |
| |
| if (ret == SSL_SUCCESS && path) { |
| /* try to load each regular file in path */ |
| #ifdef USE_WINDOWS_API |
| WIN32_FIND_DATAA FindFileData; |
| HANDLE hFind; |
| char name[MAX_FILENAME_SZ]; |
| |
| XMEMSET(name, 0, sizeof(name)); |
| XSTRNCPY(name, path, MAX_FILENAME_SZ - 4); |
| XSTRNCAT(name, "\\*", 3); |
| |
| hFind = FindFirstFileA(name, &FindFileData); |
| if (hFind == INVALID_HANDLE_VALUE) { |
| CYASSL_MSG("FindFirstFile for path verify locations failed"); |
| return BAD_PATH_ERROR; |
| } |
| |
| do { |
| if (FindFileData.dwFileAttributes != FILE_ATTRIBUTE_DIRECTORY) { |
| XSTRNCPY(name, path, MAX_FILENAME_SZ/2 - 3); |
| XSTRNCAT(name, "\\", 2); |
| XSTRNCAT(name, FindFileData.cFileName, MAX_FILENAME_SZ/2); |
| |
| ret = ProcessFile(ctx, name, SSL_FILETYPE_PEM, CA_TYPE, NULL,0, |
| NULL); |
| } |
| } while (ret == SSL_SUCCESS && FindNextFileA(hFind, &FindFileData)); |
| |
| FindClose(hFind); |
| #elif !defined(NO_CYASSL_DIR) |
| struct dirent* entry; |
| DIR* dir = opendir(path); |
| |
| if (dir == NULL) { |
| CYASSL_MSG("opendir path verify locations failed"); |
| return BAD_PATH_ERROR; |
| } |
| while ( ret == SSL_SUCCESS && (entry = readdir(dir)) != NULL) { |
| if (entry->d_type & DT_REG) { |
| char name[MAX_FILENAME_SZ]; |
| |
| XMEMSET(name, 0, sizeof(name)); |
| XSTRNCPY(name, path, MAX_FILENAME_SZ/2 - 2); |
| XSTRNCAT(name, "/", 1); |
| XSTRNCAT(name, entry->d_name, MAX_FILENAME_SZ/2); |
| |
| ret = ProcessFile(ctx, name, SSL_FILETYPE_PEM, CA_TYPE, NULL,0, |
| NULL); |
| } |
| } |
| closedir(dir); |
| #endif |
| } |
| |
| return ret; |
| } |
| |
| |
| /* Verify the ceritficate, 1 for success, < 0 for error */ |
| int CyaSSL_CertManagerVerifyBuffer(CYASSL_CERT_MANAGER* cm, const byte* buff, |
| int sz, int format) |
| { |
| int ret = 0; |
| int eccKey = 0; /* not used */ |
| |
| DecodedCert cert; |
| buffer der; |
| |
| CYASSL_ENTER("CyaSSL_CertManagerVerifyBuffer"); |
| |
| der.buffer = NULL; |
| |
| if (format == SSL_FILETYPE_PEM) { |
| EncryptedInfo info; |
| |
| info.set = 0; |
| info.ctx = NULL; |
| info.consumed = 0; |
| ret = PemToDer(buff, sz, CERT_TYPE, &der, cm->heap, &info, &eccKey); |
| InitDecodedCert(&cert, der.buffer, der.length, cm->heap); |
| } |
| else |
| InitDecodedCert(&cert, (byte*)buff, sz, cm->heap); |
| |
| if (ret == 0) |
| ret = ParseCertRelative(&cert, CERT_TYPE, 1, cm); |
| #ifdef HAVE_CRL |
| if (ret == 0 && cm->crlEnabled) |
| ret = CheckCertCRL(cm->crl, &cert); |
| #endif |
| |
| FreeDecodedCert(&cert); |
| XFREE(der.buffer, cm->heap, DYNAMIC_TYPE_CERT); |
| |
| return ret; |
| } |
| |
| |
| /* Verify the ceritficate, 1 for success, < 0 for error */ |
| int CyaSSL_CertManagerVerify(CYASSL_CERT_MANAGER* cm, const char* fname, |
| int format) |
| { |
| int ret = SSL_FATAL_ERROR; |
| byte staticBuffer[FILE_BUFFER_SIZE]; |
| byte* myBuffer = staticBuffer; |
| int dynamic = 0; |
| long sz = 0; |
| XFILE* file = XFOPEN(fname, "rb"); |
| |
| CYASSL_ENTER("CyaSSL_CertManagerVerify"); |
| |
| if (!file) return SSL_BAD_FILE; |
| XFSEEK(file, 0, XSEEK_END); |
| sz = XFTELL(file); |
| XREWIND(file); |
| |
| if (sz > (long)sizeof(staticBuffer)) { |
| CYASSL_MSG("Getting dynamic buffer"); |
| myBuffer = (byte*) XMALLOC(sz, cm->heap, DYNAMIC_TYPE_FILE); |
| if (myBuffer == NULL) { |
| XFCLOSE(file); |
| return SSL_BAD_FILE; |
| } |
| dynamic = 1; |
| } |
| |
| if ( (ret = XFREAD(myBuffer, sz, 1, file)) < 0) |
| ret = SSL_BAD_FILE; |
| else |
| ret = CyaSSL_CertManagerVerifyBuffer(cm, myBuffer, sz, format); |
| |
| XFCLOSE(file); |
| if (dynamic) XFREE(myBuffer, cm->heap, DYNAMIC_TYPE_FILE); |
| |
| if (ret == 0) |
| return SSL_SUCCESS; |
| return ret; |
| } |
| |
| |
| /* like load verify locations, 1 for success, < 0 for error */ |
| int CyaSSL_CertManagerLoadCA(CYASSL_CERT_MANAGER* cm, const char* file, |
| const char* path) |
| { |
| int ret = SSL_FATAL_ERROR; |
| CYASSL_CTX* tmp; |
| |
| CYASSL_ENTER("CyaSSL_CertManagerLoadCA"); |
| |
| if (cm == NULL) { |
| CYASSL_MSG("No CertManager error"); |
| return ret; |
| } |
| tmp = CyaSSL_CTX_new(CyaSSLv3_client_method()); |
| |
| if (tmp == NULL) { |
| CYASSL_MSG("CTX new failed"); |
| return ret; |
| } |
| |
| /* for tmp use */ |
| CyaSSL_CertManagerFree(tmp->cm); |
| tmp->cm = cm; |
| |
| ret = CyaSSL_CTX_load_verify_locations(tmp, file, path); |
| |
| /* don't loose our good one */ |
| tmp->cm = NULL; |
| CyaSSL_CTX_free(tmp); |
| |
| return ret; |
| } |
| |
| |
| |
| /* turn on CRL if off and compiled in, set options */ |
| int CyaSSL_CertManagerEnableCRL(CYASSL_CERT_MANAGER* cm, int options) |
| { |
| int ret = SSL_SUCCESS; |
| |
| (void)options; |
| |
| CYASSL_ENTER("CyaSSL_CertManagerEnableCRL"); |
| if (cm == NULL) |
| return BAD_FUNC_ARG; |
| |
| #ifdef HAVE_CRL |
| if (cm->crl == NULL) { |
| cm->crl = (CYASSL_CRL*)XMALLOC(sizeof(CYASSL_CRL), cm->heap, |
| DYNAMIC_TYPE_CRL); |
| if (cm->crl == NULL) |
| return MEMORY_E; |
| |
| if (InitCRL(cm->crl, cm) != 0) { |
| CYASSL_MSG("Init CRL failed"); |
| FreeCRL(cm->crl); |
| cm->crl = NULL; |
| return SSL_FAILURE; |
| } |
| } |
| cm->crlEnabled = 1; |
| if (options & CYASSL_CRL_CHECKALL) |
| cm->crlCheckAll = 1; |
| #else |
| ret = NOT_COMPILED_IN; |
| #endif |
| |
| return ret; |
| } |
| |
| |
| int CyaSSL_CertManagerDisableCRL(CYASSL_CERT_MANAGER* cm) |
| { |
| CYASSL_ENTER("CyaSSL_CertManagerDisableCRL"); |
| if (cm == NULL) |
| return BAD_FUNC_ARG; |
| |
| cm->crlEnabled = 0; |
| |
| return SSL_SUCCESS; |
| } |
| |
| |
| int CyaSSL_CTX_check_private_key(CYASSL_CTX* ctx) |
| { |
| /* TODO: check private against public for RSA match */ |
| (void)ctx; |
| CYASSL_ENTER("SSL_CTX_check_private_key"); |
| return SSL_SUCCESS; |
| } |
| |
| |
| #ifdef HAVE_CRL |
| |
| |
| /* check CRL if enabled, SSL_SUCCESS */ |
| int CyaSSL_CertManagerCheckCRL(CYASSL_CERT_MANAGER* cm, byte* der, int sz) |
| { |
| int ret; |
| DecodedCert cert; |
| |
| CYASSL_ENTER("CyaSSL_CertManagerCheckCRL"); |
| |
| if (cm == NULL) |
| return BAD_FUNC_ARG; |
| |
| if (cm->crlEnabled == 0) |
| return SSL_SUCCESS; |
| |
| InitDecodedCert(&cert, der, sz, NULL); |
| |
| ret = ParseCertRelative(&cert, CERT_TYPE, NO_VERIFY, cm); |
| if (ret != 0) { |
| CYASSL_MSG("ParseCert failed"); |
| return ret; |
| } |
| else { |
| ret = CheckCertCRL(cm->crl, &cert); |
| if (ret != 0) { |
| CYASSL_MSG("CheckCertCRL failed"); |
| } |
| } |
| |
| FreeDecodedCert(&cert); |
| |
| if (ret == 0) |
| return SSL_SUCCESS; /* convert */ |
| |
| return ret; |
| } |
| |
| |
| int CyaSSL_CertManagerSetCRL_Cb(CYASSL_CERT_MANAGER* cm, CbMissingCRL cb) |
| { |
| CYASSL_ENTER("CyaSSL_CertManagerSetCRL_Cb"); |
| if (cm == NULL) |
| return BAD_FUNC_ARG; |
| |
| cm->cbMissingCRL = cb; |
| |
| return SSL_SUCCESS; |
| } |
| |
| |
| int CyaSSL_CertManagerLoadCRL(CYASSL_CERT_MANAGER* cm, const char* path, |
| int type, int monitor) |
| { |
| CYASSL_ENTER("CyaSSL_CertManagerLoadCRL"); |
| if (cm == NULL) |
| return BAD_FUNC_ARG; |
| |
| if (cm->crl == NULL) { |
| if (CyaSSL_CertManagerEnableCRL(cm, 0) != SSL_SUCCESS) { |
| CYASSL_MSG("Enable CRL failed"); |
| return -1; |
| } |
| } |
| |
| return LoadCRL(cm->crl, path, type, monitor); |
| } |
| |
| |
| int CyaSSL_EnableCRL(CYASSL* ssl, int options) |
| { |
| CYASSL_ENTER("CyaSSL_EnableCRL"); |
| if (ssl) |
| return CyaSSL_CertManagerEnableCRL(ssl->ctx->cm, options); |
| else |
| return BAD_FUNC_ARG; |
| } |
| |
| |
| int CyaSSL_DisableCRL(CYASSL* ssl) |
| { |
| CYASSL_ENTER("CyaSSL_DisableCRL"); |
| if (ssl) |
| return CyaSSL_CertManagerDisableCRL(ssl->ctx->cm); |
| else |
| return BAD_FUNC_ARG; |
| } |
| |
| |
| int CyaSSL_LoadCRL(CYASSL* ssl, const char* path, int type, int monitor) |
| { |
| CYASSL_ENTER("CyaSSL_LoadCRL"); |
| if (ssl) |
| return CyaSSL_CertManagerLoadCRL(ssl->ctx->cm, path, type, monitor); |
| else |
| return BAD_FUNC_ARG; |
| } |
| |
| |
| int CyaSSL_SetCRL_Cb(CYASSL* ssl, CbMissingCRL cb) |
| { |
| CYASSL_ENTER("CyaSSL_SetCRL_Cb"); |
| if (ssl) |
| return CyaSSL_CertManagerSetCRL_Cb(ssl->ctx->cm, cb); |
| else |
| return BAD_FUNC_ARG; |
| } |
| |
| |
| int CyaSSL_CTX_EnableCRL(CYASSL_CTX* ctx, int options) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_EnableCRL"); |
| if (ctx) |
| return CyaSSL_CertManagerEnableCRL(ctx->cm, options); |
| else |
| return BAD_FUNC_ARG; |
| } |
| |
| |
| int CyaSSL_CTX_DisableCRL(CYASSL_CTX* ctx) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_DisableCRL"); |
| if (ctx) |
| return CyaSSL_CertManagerDisableCRL(ctx->cm); |
| else |
| return BAD_FUNC_ARG; |
| } |
| |
| |
| int CyaSSL_CTX_LoadCRL(CYASSL_CTX* ctx, const char* path, int type, int monitor) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_LoadCRL"); |
| if (ctx) |
| return CyaSSL_CertManagerLoadCRL(ctx->cm, path, type, monitor); |
| else |
| return BAD_FUNC_ARG; |
| } |
| |
| |
| int CyaSSL_CTX_SetCRL_Cb(CYASSL_CTX* ctx, CbMissingCRL cb) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_SetCRL_Cb"); |
| if (ctx) |
| return CyaSSL_CertManagerSetCRL_Cb(ctx->cm, cb); |
| else |
| return BAD_FUNC_ARG; |
| } |
| |
| |
| #endif /* HAVE_CRL */ |
| |
| |
| #ifdef CYASSL_DER_LOAD |
| |
| /* Add format parameter to allow DER load of CA files */ |
| int CyaSSL_CTX_der_load_verify_locations(CYASSL_CTX* ctx, const char* file, |
| int format) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_der_load_verify_locations"); |
| if (ctx == NULL || file == NULL) |
| return SSL_FAILURE; |
| |
| if (ProcessFile(ctx, file, format, CA_TYPE, NULL, 0, NULL) == SSL_SUCCESS) |
| return SSL_SUCCESS; |
| |
| return SSL_FAILURE; |
| } |
| |
| #endif /* CYASSL_DER_LOAD */ |
| |
| |
| #ifdef CYASSL_CERT_GEN |
| |
| /* load pem cert from file into der buffer, return der size or error */ |
| int CyaSSL_PemCertToDer(const char* fileName, unsigned char* derBuf, int derSz) |
| { |
| byte staticBuffer[FILE_BUFFER_SIZE]; |
| byte* fileBuf = staticBuffer; |
| int dynamic = 0; |
| int ret; |
| int ecc = 0; |
| long sz = 0; |
| XFILE* file = XFOPEN(fileName, "rb"); |
| EncryptedInfo info; |
| buffer converted; |
| |
| CYASSL_ENTER("CyaSSL_PemCertToDer"); |
| converted.buffer = 0; |
| |
| if (!file) return SSL_BAD_FILE; |
| XFSEEK(file, 0, XSEEK_END); |
| sz = XFTELL(file); |
| XREWIND(file); |
| |
| if (sz > (long)sizeof(staticBuffer)) { |
| fileBuf = (byte*) XMALLOC(sz, 0, DYNAMIC_TYPE_FILE); |
| if (fileBuf == NULL) { |
| XFCLOSE(file); |
| return SSL_BAD_FILE; |
| } |
| dynamic = 1; |
| } |
| |
| if ( (ret = XFREAD(fileBuf, sz, 1, file)) < 0) |
| ret = SSL_BAD_FILE; |
| else |
| ret = PemToDer(fileBuf, sz, CA_TYPE, &converted, 0, &info, &ecc); |
| |
| if (ret == 0) { |
| if (converted.length < (word32)derSz) { |
| XMEMCPY(derBuf, converted.buffer, converted.length); |
| ret = converted.length; |
| } |
| else |
| ret = BUFFER_E; |
| } |
| |
| XFREE(converted.buffer, 0, DYNAMIC_TYPE_CA); |
| if (dynamic) |
| XFREE(fileBuf, 0, DYNAMIC_TYPE_FILE); |
| XFCLOSE(file); |
| |
| return ret; |
| } |
| |
| #endif /* CYASSL_CERT_GEN */ |
| |
| |
| int CyaSSL_CTX_use_certificate_file(CYASSL_CTX* ctx, const char* file, |
| int format) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_use_certificate_file"); |
| if (ProcessFile(ctx, file, format, CERT_TYPE, NULL, 0, NULL) == SSL_SUCCESS) |
| return SSL_SUCCESS; |
| |
| return SSL_FAILURE; |
| } |
| |
| |
| int CyaSSL_CTX_use_PrivateKey_file(CYASSL_CTX* ctx, const char* file,int format) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_use_PrivateKey_file"); |
| if (ProcessFile(ctx, file, format, PRIVATEKEY_TYPE, NULL, 0, NULL) |
| == SSL_SUCCESS) |
| return SSL_SUCCESS; |
| |
| return SSL_FAILURE; |
| } |
| |
| |
| int CyaSSL_CTX_use_certificate_chain_file(CYASSL_CTX* ctx, const char* file) |
| { |
| /* procces up to MAX_CHAIN_DEPTH plus subject cert */ |
| CYASSL_ENTER("CyaSSL_CTX_use_certificate_chain_file"); |
| if (ProcessFile(ctx, file, SSL_FILETYPE_PEM,CERT_TYPE,NULL,1, NULL) |
| == SSL_SUCCESS) |
| return SSL_SUCCESS; |
| |
| return SSL_FAILURE; |
| } |
| |
| |
| #ifdef OPENSSL_EXTRA |
| /* put SSL type in extra for now, not very common */ |
| |
| int CyaSSL_use_certificate_file(CYASSL* ssl, const char* file, int format) |
| { |
| CYASSL_ENTER("CyaSSL_use_certificate_file"); |
| if (ProcessFile(ssl->ctx, file, format, CERT_TYPE, ssl, 0, NULL) |
| == SSL_SUCCESS) |
| return SSL_SUCCESS; |
| |
| return SSL_FAILURE; |
| } |
| |
| |
| int CyaSSL_use_PrivateKey_file(CYASSL* ssl, const char* file, int format) |
| { |
| CYASSL_ENTER("CyaSSL_use_PrivateKey_file"); |
| if (ProcessFile(ssl->ctx, file, format, PRIVATEKEY_TYPE, ssl, 0, NULL) |
| == SSL_SUCCESS) |
| return SSL_SUCCESS; |
| |
| return SSL_FAILURE; |
| } |
| |
| |
| int CyaSSL_use_certificate_chain_file(CYASSL* ssl, const char* file) |
| { |
| /* procces up to MAX_CHAIN_DEPTH plus subject cert */ |
| CYASSL_ENTER("CyaSSL_use_certificate_chain_file"); |
| if (ProcessFile(ssl->ctx, file, SSL_FILETYPE_PEM, CERT_TYPE, ssl, 1, NULL) |
| == SSL_SUCCESS) |
| return SSL_SUCCESS; |
| |
| return SSL_FAILURE; |
| } |
| |
| |
| /* server wrapper for ctx or ssl Diffie-Hellman parameters */ |
| static int CyaSSL_SetTmpDH_buffer_wrapper(CYASSL_CTX* ctx, CYASSL* ssl, |
| const unsigned char* buf, long sz, int format) |
| { |
| buffer der; |
| int ret; |
| int weOwnDer = 0; |
| byte p[MAX_DH_SIZE]; |
| byte g[MAX_DH_SIZE]; |
| word32 pSz = sizeof(p); |
| word32 gSz = sizeof(g); |
| |
| der.buffer = (byte*)buf; |
| der.length = sz; |
| |
| if (format != SSL_FILETYPE_ASN1 && format != SSL_FILETYPE_PEM) |
| return SSL_BAD_FILETYPE; |
| |
| if (format == SSL_FILETYPE_PEM) { |
| der.buffer = NULL; |
| ret = PemToDer(buf, sz, DH_PARAM_TYPE, &der, ctx->heap, NULL,NULL); |
| if (ret < 0) { |
| XFREE(der.buffer, ctx->heap, DYNAMIC_TYPE_KEY); |
| return ret; |
| } |
| weOwnDer = 1; |
| } |
| |
| if (DhParamsLoad(der.buffer, der.length, p, &pSz, g, &gSz) < 0) |
| ret = SSL_BAD_FILETYPE; |
| else { |
| if (ssl) |
| ret = CyaSSL_SetTmpDH(ssl, p, pSz, g, gSz); |
| else |
| ret = CyaSSL_CTX_SetTmpDH(ctx, p, pSz, g, gSz); |
| } |
| |
| if (weOwnDer) |
| XFREE(der.buffer, ctx->heap, DYNAMIC_TYPE_KEY); |
| |
| return ret; |
| } |
| |
| /* server Diffie-Hellman parameters */ |
| int CyaSSL_SetTmpDH_buffer(CYASSL* ssl, const unsigned char* buf, long sz, |
| int format) |
| { |
| return CyaSSL_SetTmpDH_buffer_wrapper(ssl->ctx, ssl, buf, sz, format); |
| } |
| |
| |
| /* server ctx Diffie-Hellman parameters */ |
| int CyaSSL_CTX_SetTmpDH_buffer(CYASSL_CTX* ctx, const unsigned char* buf, |
| long sz, int format) |
| { |
| return CyaSSL_SetTmpDH_buffer_wrapper(ctx, NULL, buf, sz, format); |
| } |
| |
| |
| #ifdef HAVE_ECC |
| |
| /* Set Temp CTX EC-DHE size in octets, should be 20 - 66 for 160 - 521 bit */ |
| int CyaSSL_CTX_SetTmpEC_DHE_Sz(CYASSL_CTX* ctx, word16 sz) |
| { |
| if (ctx == NULL || sz < ECC_MINSIZE || sz > ECC_MAXSIZE) |
| return BAD_FUNC_ARG; |
| |
| ctx->eccTempKeySz = sz; |
| |
| return SSL_SUCCESS; |
| } |
| |
| |
| /* Set Temp SSL EC-DHE size in octets, should be 20 - 66 for 160 - 521 bit */ |
| int CyaSSL_SetTmpEC_DHE_Sz(CYASSL* ssl, word16 sz) |
| { |
| if (ssl == NULL || sz < ECC_MINSIZE || sz > ECC_MAXSIZE) |
| return BAD_FUNC_ARG; |
| |
| ssl->eccTempKeySz = sz; |
| |
| return SSL_SUCCESS; |
| } |
| |
| #endif /* HAVE_ECC */ |
| |
| |
| #if !defined(NO_FILESYSTEM) |
| |
| /* server Diffie-Hellman parameters */ |
| static int CyaSSL_SetTmpDH_file_wrapper(CYASSL_CTX* ctx, CYASSL* ssl, |
| const char* fname, int format) |
| { |
| byte staticBuffer[FILE_BUFFER_SIZE]; |
| byte* myBuffer = staticBuffer; |
| int dynamic = 0; |
| int ret; |
| long sz = 0; |
| XFILE* file = XFOPEN(fname, "rb"); |
| |
| if (!file) return SSL_BAD_FILE; |
| XFSEEK(file, 0, XSEEK_END); |
| sz = XFTELL(file); |
| XREWIND(file); |
| |
| if (sz > (long)sizeof(staticBuffer)) { |
| CYASSL_MSG("Getting dynamic buffer"); |
| myBuffer = (byte*) XMALLOC(sz, ctx->heap, DYNAMIC_TYPE_FILE); |
| if (myBuffer == NULL) { |
| XFCLOSE(file); |
| return SSL_BAD_FILE; |
| } |
| dynamic = 1; |
| } |
| |
| if ( (ret = XFREAD(myBuffer, sz, 1, file)) < 0) |
| ret = SSL_BAD_FILE; |
| else { |
| if (ssl) |
| ret = CyaSSL_SetTmpDH_buffer(ssl, myBuffer, sz, format); |
| else |
| ret = CyaSSL_CTX_SetTmpDH_buffer(ctx, myBuffer, sz, format); |
| } |
| |
| XFCLOSE(file); |
| if (dynamic) XFREE(myBuffer, ctx->heap, DYNAMIC_TYPE_FILE); |
| |
| return ret; |
| } |
| |
| /* server Diffie-Hellman parameters */ |
| int CyaSSL_SetTmpDH_file(CYASSL* ssl, const char* fname, int format) |
| { |
| return CyaSSL_SetTmpDH_file_wrapper(ssl->ctx, ssl, fname, format); |
| } |
| |
| |
| /* server Diffie-Hellman parameters */ |
| int CyaSSL_CTX_SetTmpDH_file(CYASSL_CTX* ctx, const char* fname, int format) |
| { |
| return CyaSSL_SetTmpDH_file_wrapper(ctx, NULL, fname, format); |
| } |
| |
| |
| #endif /* !NO_FILESYSTEM */ |
| #endif /* OPENSSL_EXTRA */ |
| |
| #ifdef HAVE_NTRU |
| |
| int CyaSSL_CTX_use_NTRUPrivateKey_file(CYASSL_CTX* ctx, const char* file) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_use_NTRUPrivateKey_file"); |
| if (ProcessFile(ctx, file, SSL_FILETYPE_RAW, PRIVATEKEY_TYPE, NULL, 0, NULL) |
| == SSL_SUCCESS) { |
| ctx->haveNTRU = 1; |
| return SSL_SUCCESS; |
| } |
| |
| return SSL_FAILURE; |
| } |
| |
| #endif /* HAVE_NTRU */ |
| |
| |
| |
| #ifdef OPENSSL_EXTRA |
| |
| int CyaSSL_CTX_use_RSAPrivateKey_file(CYASSL_CTX* ctx,const char* file, |
| int format) |
| { |
| CYASSL_ENTER("SSL_CTX_use_RSAPrivateKey_file"); |
| if (ProcessFile(ctx, file,format,PRIVATEKEY_TYPE,NULL,0, NULL) |
| == SSL_SUCCESS) |
| return SSL_SUCCESS; |
| |
| return SSL_FAILURE; |
| } |
| |
| int CyaSSL_use_RSAPrivateKey_file(CYASSL* ssl, const char* file, int format) |
| { |
| CYASSL_ENTER("CyaSSL_use_RSAPrivateKey_file"); |
| if (ProcessFile(ssl->ctx, file, format, PRIVATEKEY_TYPE, ssl, 0, NULL) |
| == SSL_SUCCESS) |
| return SSL_SUCCESS; |
| |
| return SSL_FAILURE; |
| } |
| |
| #endif /* OPENSSL_EXTRA */ |
| |
| #endif /* NO_FILESYSTEM */ |
| |
| |
| void CyaSSL_CTX_set_verify(CYASSL_CTX* ctx, int mode, VerifyCallback vc) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_set_verify"); |
| if (mode & SSL_VERIFY_PEER) { |
| ctx->verifyPeer = 1; |
| ctx->verifyNone = 0; /* in case perviously set */ |
| } |
| |
| if (mode == SSL_VERIFY_NONE) { |
| ctx->verifyNone = 1; |
| ctx->verifyPeer = 0; /* in case previously set */ |
| } |
| |
| if (mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT) |
| ctx->failNoCert = 1; |
| |
| ctx->verifyCallback = vc; |
| } |
| |
| |
| void CyaSSL_set_verify(CYASSL* ssl, int mode, VerifyCallback vc) |
| { |
| CYASSL_ENTER("CyaSSL_set_verify"); |
| if (mode & SSL_VERIFY_PEER) { |
| ssl->options.verifyPeer = 1; |
| ssl->options.verifyNone = 0; /* in case perviously set */ |
| } |
| |
| if (mode == SSL_VERIFY_NONE) { |
| ssl->options.verifyNone = 1; |
| ssl->options.verifyPeer = 0; /* in case previously set */ |
| } |
| |
| if (mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT) |
| ssl->options.failNoCert = 1; |
| |
| ssl->verifyCallback = vc; |
| } |
| |
| |
| /* store context CA Cache addition callback */ |
| void CyaSSL_CTX_SetCACb(CYASSL_CTX* ctx, CallbackCACache cb) |
| { |
| if (ctx && ctx->cm) |
| ctx->cm->caCacheCallback = cb; |
| } |
| |
| |
| #ifndef NO_SESSION_CACHE |
| |
| CYASSL_SESSION* CyaSSL_get_session(CYASSL* ssl) |
| { |
| CYASSL_ENTER("SSL_get_session"); |
| if (ssl) |
| return GetSession(ssl, 0); |
| |
| return NULL; |
| } |
| |
| |
| int CyaSSL_set_session(CYASSL* ssl, CYASSL_SESSION* session) |
| { |
| CYASSL_ENTER("SSL_set_session"); |
| if (session) |
| return SetSession(ssl, session); |
| |
| return SSL_FAILURE; |
| } |
| |
| #endif /* NO_SESSION_CACHE */ |
| |
| |
| void CyaSSL_load_error_strings(void) /* compatibility only */ |
| {} |
| |
| |
| int CyaSSL_library_init(void) |
| { |
| CYASSL_ENTER("SSL_library_init"); |
| if (CyaSSL_Init() == 0) |
| return SSL_SUCCESS; |
| else |
| return SSL_FATAL_ERROR; |
| } |
| |
| |
| #ifndef NO_SESSION_CACHE |
| |
| /* on by default if built in but allow user to turn off */ |
| long CyaSSL_CTX_set_session_cache_mode(CYASSL_CTX* ctx, long mode) |
| { |
| CYASSL_ENTER("SSL_CTX_set_session_cache_mode"); |
| if (mode == SSL_SESS_CACHE_OFF) |
| ctx->sessionCacheOff = 1; |
| |
| if (mode == SSL_SESS_CACHE_NO_AUTO_CLEAR) |
| ctx->sessionCacheFlushOff = 1; |
| |
| return SSL_SUCCESS; |
| } |
| |
| #endif /* NO_SESSION_CACHE */ |
| |
| |
| int CyaSSL_CTX_set_cipher_list(CYASSL_CTX* ctx, const char* list) |
| { |
| CYASSL_ENTER("CyaSSL_CTX_set_cipher_list"); |
| if (SetCipherList(&ctx->suites, list)) |
| return SSL_SUCCESS; |
| else |
| return SSL_FAILURE; |
| } |
| |
| |
| int CyaSSL_set_cipher_list(CYASSL* ssl, const char* list) |
| { |
| CYASSL_ENTER("CyaSSL_set_cipher_list"); |
| if (SetCipherList(&ssl->suites, list)) { |
| byte havePSK = 0; |
| |
| #ifndef NO_PSK |
| havePSK = ssl->options.havePSK; |
| #endif |
| |
| InitSuites(&ssl->suites, ssl->version, ssl->options.haveDH, havePSK, |
| ssl->options.haveNTRU, ssl->options.haveECDSAsig, |
| ssl->options.haveStaticECC, ssl->options.side); |
| |
| return SSL_SUCCESS; |
| } |
| else |
| return SSL_FAILURE; |
| } |
| |
| |
| /* client only parts */ |
| #ifndef NO_CYASSL_CLIENT |
| |
| CYASSL_METHOD* CyaSSLv3_client_method(void) |
| { |
| CYASSL_METHOD* method = |
| (CYASSL_METHOD*) XMALLOC(sizeof(CYASSL_METHOD), 0, |
| DYNAMIC_TYPE_METHOD); |
| CYASSL_ENTER("SSLv3_client_method"); |
| if (method) |
| InitSSL_Method(method, MakeSSLv3()); |
| return method; |
| } |
| |
| #ifdef CYASSL_DTLS |
| CYASSL_METHOD* CyaDTLSv1_client_method(void) |
| { |
| CYASSL_METHOD* method = |
| (CYASSL_METHOD*) XMALLOC(sizeof(CYASSL_METHOD), 0, |
| DYNAMIC_TYPE_METHOD); |
| CYASSL_ENTER("DTLSv1_client_method"); |
| if (method) |
| InitSSL_Method(method, MakeDTLSv1()); |
| return method; |
| } |
| #endif |
| |
| |
| /* please see note at top of README if you get an error from connect */ |
| int CyaSSL_connect(CYASSL* ssl) |
| { |
| int neededState; |
| |
| CYASSL_ENTER("SSL_connect()"); |
| |
| #ifdef HAVE_ERRNO_H |
| errno = 0; |
| #endif |
| |
| if (ssl->options.side != CLIENT_END) { |
| CYASSL_ERROR(ssl->error = SIDE_ERROR); |
| return SSL_FATAL_ERROR; |
| } |
| |
| #ifdef CYASSL_DTLS |
| if (ssl->version.major == DTLS_MAJOR && |
| ssl->version.minor == DTLS_MINOR) { |
| ssl->options.dtls = 1; |
| ssl->options.tls = 1; |
| ssl->options.tls1_1 = 1; |
| } |
| #endif |
| |
| if (ssl->buffers.outputBuffer.length > 0) { |
| if ( (ssl->error = SendBuffered(ssl)) == 0) { |
| ssl->options.connectState++; |
| CYASSL_MSG("connect state: Advanced from buffered send"); |
| } |
| else { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| } |
| |
| switch (ssl->options.connectState) { |
| |
| case CONNECT_BEGIN : |
| /* always send client hello first */ |
| if ( (ssl->error = SendClientHello(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.connectState = CLIENT_HELLO_SENT; |
| CYASSL_MSG("connect state: CLIENT_HELLO_SENT"); |
| |
| case CLIENT_HELLO_SENT : |
| neededState = ssl->options.resuming ? SERVER_FINISHED_COMPLETE : |
| SERVER_HELLODONE_COMPLETE; |
| #ifdef CYASSL_DTLS |
| if (ssl->options.dtls && !ssl->options.resuming) |
| neededState = SERVER_HELLOVERIFYREQUEST_COMPLETE; |
| #endif |
| /* get response */ |
| while (ssl->options.serverState < neededState) { |
| if ( (ssl->error = ProcessReply(ssl)) < 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| /* if resumption failed, reset needed state */ |
| else if (neededState == SERVER_FINISHED_COMPLETE) |
| if (!ssl->options.resuming) { |
| if (!ssl->options.dtls) |
| neededState = SERVER_HELLODONE_COMPLETE; |
| else |
| neededState = SERVER_HELLOVERIFYREQUEST_COMPLETE; |
| } |
| } |
| |
| ssl->options.connectState = HELLO_AGAIN; |
| CYASSL_MSG("connect state: HELLO_AGAIN"); |
| |
| case HELLO_AGAIN : |
| if (ssl->options.certOnly) |
| return SSL_SUCCESS; |
| |
| #ifdef CYASSL_DTLS |
| if (ssl->options.dtls && !ssl->options.resuming) { |
| /* re-init hashes, exclude first hello and verify request */ |
| InitMd5(&ssl->hashMd5); |
| InitSha(&ssl->hashSha); |
| #ifndef NO_SHA256 |
| if (IsAtLeastTLSv1_2(ssl)) |
| InitSha256(&ssl->hashSha256); |
| #endif |
| if ( (ssl->error = SendClientHello(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| } |
| #endif |
| |
| ssl->options.connectState = HELLO_AGAIN_REPLY; |
| CYASSL_MSG("connect state: HELLO_AGAIN_REPLY"); |
| |
| case HELLO_AGAIN_REPLY : |
| #ifdef CYASSL_DTLS |
| if (ssl->options.dtls) { |
| neededState = ssl->options.resuming ? |
| SERVER_FINISHED_COMPLETE : SERVER_HELLODONE_COMPLETE; |
| |
| /* get response */ |
| while (ssl->options.serverState < neededState) { |
| if ( (ssl->error = ProcessReply(ssl)) < 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| /* if resumption failed, reset needed state */ |
| else if (neededState == SERVER_FINISHED_COMPLETE) |
| if (!ssl->options.resuming) |
| neededState = SERVER_HELLODONE_COMPLETE; |
| } |
| } |
| #endif |
| |
| ssl->options.connectState = FIRST_REPLY_DONE; |
| CYASSL_MSG("connect state: FIRST_REPLY_DONE"); |
| |
| case FIRST_REPLY_DONE : |
| if (ssl->options.sendVerify) |
| if ( (ssl->error = SendCertificate(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| |
| ssl->options.connectState = FIRST_REPLY_FIRST; |
| CYASSL_MSG("connect state: FIRST_REPLY_FIRST"); |
| |
| case FIRST_REPLY_FIRST : |
| if (!ssl->options.resuming) |
| if ( (ssl->error = SendClientKeyExchange(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| |
| ssl->options.connectState = FIRST_REPLY_SECOND; |
| CYASSL_MSG("connect state: FIRST_REPLY_SECOND"); |
| |
| case FIRST_REPLY_SECOND : |
| if (ssl->options.sendVerify) |
| if ( (ssl->error = SendCertificateVerify(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.connectState = FIRST_REPLY_THIRD; |
| CYASSL_MSG("connect state: FIRST_REPLY_THIRD"); |
| |
| case FIRST_REPLY_THIRD : |
| if ( (ssl->error = SendChangeCipher(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.connectState = FIRST_REPLY_FOURTH; |
| CYASSL_MSG("connect state: FIRST_REPLY_FOURTH"); |
| |
| case FIRST_REPLY_FOURTH : |
| if ( (ssl->error = SendFinished(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| |
| ssl->options.connectState = FINISHED_DONE; |
| CYASSL_MSG("connect state: FINISHED_DONE"); |
| |
| case FINISHED_DONE : |
| /* get response */ |
| while (ssl->options.serverState < SERVER_FINISHED_COMPLETE) |
| if ( (ssl->error = ProcessReply(ssl)) < 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| |
| ssl->options.connectState = SECOND_REPLY_DONE; |
| CYASSL_MSG("connect state: SECOND_REPLY_DONE"); |
| |
| case SECOND_REPLY_DONE: |
| if (ssl->buffers.inputBuffer.dynamicFlag) |
| ShrinkInputBuffer(ssl, NO_FORCED_FREE); |
| CYASSL_LEAVE("SSL_connect()", SSL_SUCCESS); |
| return SSL_SUCCESS; |
| |
| default: |
| CYASSL_MSG("Unknown connect state ERROR"); |
| return SSL_FATAL_ERROR; /* unknown connect state */ |
| } |
| } |
| |
| #endif /* NO_CYASSL_CLIENT */ |
| |
| |
| /* server only parts */ |
| #ifndef NO_CYASSL_SERVER |
| |
| CYASSL_METHOD* CyaSSLv3_server_method(void) |
| { |
| CYASSL_METHOD* method = |
| (CYASSL_METHOD*) XMALLOC(sizeof(CYASSL_METHOD), 0, |
| DYNAMIC_TYPE_METHOD); |
| CYASSL_ENTER("SSLv3_server_method"); |
| if (method) { |
| InitSSL_Method(method, MakeSSLv3()); |
| method->side = SERVER_END; |
| } |
| return method; |
| } |
| |
| |
| #ifdef CYASSL_DTLS |
| CYASSL_METHOD* CyaDTLSv1_server_method(void) |
| { |
| CYASSL_METHOD* method = |
| (CYASSL_METHOD*) XMALLOC(sizeof(CYASSL_METHOD), 0, |
| DYNAMIC_TYPE_METHOD); |
| CYASSL_ENTER("DTLSv1_server_method"); |
| if (method) { |
| InitSSL_Method(method, MakeDTLSv1()); |
| method->side = SERVER_END; |
| } |
| return method; |
| } |
| #endif |
| |
| |
| int CyaSSL_accept(CYASSL* ssl) |
| { |
| byte havePSK = 0; |
| CYASSL_ENTER("SSL_accept()"); |
| |
| #ifdef HAVE_ERRNO_H |
| errno = 0; |
| #endif |
| |
| #ifndef NO_PSK |
| havePSK = ssl->options.havePSK; |
| #endif |
| |
| if (ssl->options.side != SERVER_END) { |
| CYASSL_ERROR(ssl->error = SIDE_ERROR); |
| return SSL_FATAL_ERROR; |
| } |
| |
| /* in case used set_accept_state after init */ |
| if (!havePSK && (ssl->buffers.certificate.buffer == NULL || |
| ssl->buffers.key.buffer == NULL)) { |
| CYASSL_MSG("accept error: don't have server cert and key"); |
| ssl->error = NO_PRIVATE_KEY; |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| |
| #ifdef HAVE_ECC |
| /* in case used set_accept_state after init */ |
| if (ssl->eccTempKeyPresent == 0) { |
| if (ecc_make_key(&ssl->rng, ssl->eccTempKeySz, |
| &ssl->eccTempKey) != 0) { |
| ssl->error = ECC_MAKEKEY_ERROR; |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->eccTempKeyPresent = 1; |
| } |
| #endif |
| |
| #ifdef CYASSL_DTLS |
| if (ssl->version.major == DTLS_MAJOR && |
| ssl->version.minor == DTLS_MINOR) { |
| ssl->options.dtls = 1; |
| ssl->options.tls = 1; |
| ssl->options.tls1_1 = 1; |
| } |
| #endif |
| |
| if (ssl->buffers.outputBuffer.length > 0) { |
| if ( (ssl->error = SendBuffered(ssl)) == 0) { |
| ssl->options.acceptState++; |
| CYASSL_MSG("accept state: Advanced from buffered send"); |
| } |
| else { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| } |
| |
| switch (ssl->options.acceptState) { |
| |
| case ACCEPT_BEGIN : |
| /* get response */ |
| while (ssl->options.clientState < CLIENT_HELLO_COMPLETE) |
| if ( (ssl->error = ProcessReply(ssl)) < 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.acceptState = ACCEPT_CLIENT_HELLO_DONE; |
| CYASSL_MSG("accept state ACCEPT_CLIENT_HELLO_DONE"); |
| |
| case ACCEPT_CLIENT_HELLO_DONE : |
| #ifdef CYASSL_DTLS |
| if (ssl->options.dtls && !ssl->options.resuming) |
| if ( (ssl->error = SendHelloVerifyRequest(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| #endif |
| ssl->options.acceptState = HELLO_VERIFY_SENT; |
| CYASSL_MSG("accept state HELLO_VERIFY_SENT"); |
| |
| case HELLO_VERIFY_SENT: |
| #ifdef CYASSL_DTLS |
| if (ssl->options.dtls && !ssl->options.resuming) { |
| ssl->options.clientState = NULL_STATE; /* get again */ |
| /* re-init hashes, exclude first hello and verify request */ |
| InitMd5(&ssl->hashMd5); |
| InitSha(&ssl->hashSha); |
| #ifndef NO_SHA256 |
| if (IsAtLeastTLSv1_2(ssl)) |
| InitSha256(&ssl->hashSha256); |
| #endif |
| |
| while (ssl->options.clientState < CLIENT_HELLO_COMPLETE) |
| if ( (ssl->error = ProcessReply(ssl)) < 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| } |
| #endif |
| ssl->options.acceptState = ACCEPT_FIRST_REPLY_DONE; |
| CYASSL_MSG("accept state ACCEPT_FIRST_REPLY_DONE"); |
| |
| case ACCEPT_FIRST_REPLY_DONE : |
| if ( (ssl->error = SendServerHello(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.acceptState = SERVER_HELLO_SENT; |
| CYASSL_MSG("accept state SERVER_HELLO_SENT"); |
| |
| case SERVER_HELLO_SENT : |
| if (!ssl->options.resuming) |
| if ( (ssl->error = SendCertificate(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.acceptState = CERT_SENT; |
| CYASSL_MSG("accept state CERT_SENT"); |
| |
| case CERT_SENT : |
| if (!ssl->options.resuming) |
| if ( (ssl->error = SendServerKeyExchange(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.acceptState = KEY_EXCHANGE_SENT; |
| CYASSL_MSG("accept state KEY_EXCHANGE_SENT"); |
| |
| case KEY_EXCHANGE_SENT : |
| if (!ssl->options.resuming) |
| if (ssl->options.verifyPeer) |
| if ( (ssl->error = SendCertificateRequest(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.acceptState = CERT_REQ_SENT; |
| CYASSL_MSG("accept state CERT_REQ_SENT"); |
| |
| case CERT_REQ_SENT : |
| if (!ssl->options.resuming) |
| if ( (ssl->error = SendServerHelloDone(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.acceptState = SERVER_HELLO_DONE; |
| CYASSL_MSG("accept state SERVER_HELLO_DONE"); |
| |
| case SERVER_HELLO_DONE : |
| if (!ssl->options.resuming) { |
| while (ssl->options.clientState < CLIENT_FINISHED_COMPLETE) |
| if ( (ssl->error = ProcessReply(ssl)) < 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| } |
| ssl->options.acceptState = ACCEPT_SECOND_REPLY_DONE; |
| CYASSL_MSG("accept state ACCEPT_SECOND_REPLY_DONE"); |
| |
| case ACCEPT_SECOND_REPLY_DONE : |
| if ( (ssl->error = SendChangeCipher(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| ssl->options.acceptState = CHANGE_CIPHER_SENT; |
| CYASSL_MSG("accept state CHANGE_CIPHER_SENT"); |
| |
| case CHANGE_CIPHER_SENT : |
| if ( (ssl->error = SendFinished(ssl)) != 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| |
| ssl->options.acceptState = ACCEPT_FINISHED_DONE; |
| CYASSL_MSG("accept state ACCEPT_FINISHED_DONE"); |
| |
| case ACCEPT_FINISHED_DONE : |
| if (ssl->options.resuming) |
| while (ssl->options.clientState < CLIENT_FINISHED_COMPLETE) |
| if ( (ssl->error = ProcessReply(ssl)) < 0) { |
| CYASSL_ERROR(ssl->error); |
| return SSL_FATAL_ERROR; |
| } |
| |
| ssl->options.acceptState = ACCEPT_THIRD_REPLY_DONE; |
| CYASSL_MSG("accept state ACCEPT_THIRD_REPLY_DONE"); |
| |
| case ACCEPT_THIRD_REPLY_DONE : |
| if (ssl->buffers.inputBuffer.dynamicFlag) |
| ShrinkInputBuffer(ssl, NO_FORCED_FREE); |
| CYASSL_LEAVE("SSL_accept()", SSL_SUCCESS); |
| return SSL_SUCCESS; |
| |
| default : |
| CYASSL_MSG("Unknown accept state ERROR"); |
| return SSL_FATAL_ERROR; |
| } |
| } |
| |
| #endif /* NO_CYASSL_SERVER */ |
| |
| /* prevent multiple mutex initializations */ |
| static volatile int initRefCount = 0; |
| static CyaSSL_Mutex count_mutex; /* init ref count mutex */ |
| |
| int CyaSSL_Init(void) |
| { |
| int ret = 0; |
| |
| CYASSL_ENTER("CyaSSL_Init"); |
| |
| if (initRefCount == 0) { |
| #ifndef NO_SESSION_CACHE |
| if (InitMutex(&session_mutex) != 0) |
| ret = BAD_MUTEX_ERROR; |
| #endif |
| if (InitMutex(&count_mutex) != 0) |
| ret = BAD_MUTEX_ERROR; |
| } |
| if (ret == 0) { |
| LockMutex(&count_mutex); |
| initRefCount++; |
| UnLockMutex(&count_mutex); |
| } |
| |
| return ret; |
| } |
| |
| |
| int CyaSSL_Cleanup(void) |
| { |
| int ret = 0; |
| int release = 0; |
| |
| CYASSL_ENTER("CyaSSL_Cleanup"); |
| |
| LockMutex(&count_mutex); |
| |
| release = initRefCount-- == 1; |
| if (initRefCount < 0) |
| initRefCount = 0; |
| |
| UnLockMutex(&count_mutex); |
| |
| if (!release) |
| return ret; |
| |
| #ifndef NO_SESSION_CACHE |
| if (FreeMutex(&session_mutex) != 0) |
| ret = BAD_MUTEX_ERROR; |
| #endif |
| if (FreeMutex(&count_mutex) != 0) |
| ret = BAD_MUTEX_ERROR; |
| |
| return ret; |
| } |
| |
| |
| #ifndef NO_SESSION_CACHE |
| |
| |
| static INLINE word32 HashSession(const byte* sessionID) |
| { |
| /* id is random, just make 32 bit number from first 4 bytes for now */ |
| return (sessionID[0] << 24) | (sessionID[1] << 16) | (sessionID[2] << 8) | |
| sessionID[3]; |
| } |
| |
| |
| void CyaSSL_flush_sessions(CYASSL_CTX* ctx, long tm) |
| { |
| /* static table now, no flusing needed */ |
| (void)ctx; |
| (void)tm; |
| } |
| |
| |
| /* set ssl session timeout in seconds */ |
| int CyaSSL_set_timeout(CYASSL* ssl, unsigned int to) |
| { |
| if (ssl == NULL) |
| return BAD_FUNC_ARG; |
| |
| ssl->timeout = to; |
| |
| return SSL_SUCCESS; |
| } |
| |
| |
| /* set ctx session timeout in seconds */ |
| int CyaSSL_CTX_set_timeout(CYASSL_CTX* ctx, unsigned int to) |
| { |
| if (ctx == NULL) |
| return BAD_FUNC_ARG; |
| |
| ctx->timeout = to; |
| |
| return SSL_SUCCESS; |
| } |
| |
| |
| CYASSL_SESSION* GetSession(CYASSL* ssl, byte* masterSecret) |
| { |
| CYASSL_SESSION* ret = 0; |
| const byte* id = ssl->arrays.sessionID; |
| word32 row; |
| int idx; |
| |
| if (ssl->options.sessionCacheOff) |
| return NULL; |
| |
| if (ssl->options.haveSessionId == 0) |
| return NULL; |
| |
| row = HashSession(id) % SESSION_ROWS; |
| |
| if (LockMutex(&session_mutex) != 0) |
| return 0; |
| |
| if (SessionCache[row].totalCount >= SESSIONS_PER_ROW) |
| idx = SESSIONS_PER_ROW - 1; |
| else |
| idx = SessionCache[row].nextIdx - 1; |
| |
| for (; idx >= 0; idx--) { |
| CYASSL_SESSION* current; |
| |
| if (idx >= SESSIONS_PER_ROW) /* server could have restarted, idx */ |
| break; /* would be word32(-1) and seg fault */ |
| |
| current = &SessionCache[row].Sessions[idx]; |
| if (XMEMCMP(current->sessionID, id, ID_LEN) == 0) { |
| if (LowResTimer() < (current->bornOn + current->timeout)) { |
| ret = current; |
| if (masterSecret) |
| XMEMCPY(masterSecret, current->masterSecret, SECRET_LEN); |
| } |
| break; |
| } |
| } |
| |
| UnLockMutex(&session_mutex); |
| |
| return ret; |
| } |
| |
| |
| int SetSession(CYASSL* ssl, CYASSL_SESSION* session) |
| { |
| if (ssl->options.sessionCacheOff) |
| return SSL_FAILURE; |
| |
| if (LowResTimer() < (session->bornOn + session->timeout)) { |
| ssl->session = *session; |
| ssl->options.resuming = 1; |
| |
| #ifdef SESSION_CERTS |
| ssl->version = session->version; |
| ssl->options.cipherSuite0 = session->cipherSuite0; |
| ssl->options.cipherSuite = session->cipherSuite; |
| #endif |
| |
| return SSL_SUCCESS; |
| } |
| return SSL_FAILURE; /* session timed out */ |
| } |
| |
| |
| int AddSession(CYASSL* ssl) |
| { |
| word32 row, idx; |
| |
| if (ssl->options.sessionCacheOff) |
| return 0; |
| |
| if (ssl->options.haveSessionId == 0) |
| return 0; |
| |
| row = HashSession(ssl->arrays.sessionID) % SESSION_ROWS; |
| |
| if (LockMutex(&session_mutex) != 0) |
| return BAD_MUTEX_ERROR; |
| |
| idx = SessionCache[row].nextIdx++; |
| |
| XMEMCPY(SessionCache[row].Sessions[idx].masterSecret, |
| ssl->arrays.masterSecret, SECRET_LEN); |
| XMEMCPY(SessionCache[row].Sessions[idx].sessionID, ssl->arrays.sessionID, |
| ID_LEN); |
| |
| SessionCache[row].Sessions[idx].timeout = ssl->timeout; |
| SessionCache[row].Sessions[idx].bornOn = LowResTimer(); |
| |
| #ifdef SESSION_CERTS |
| SessionCache[row].Sessions[idx].chain.count = ssl->session.chain.count; |
| XMEMCPY(SessionCache[row].Sessions[idx].chain.certs, |
| ssl->session.chain.certs, sizeof(x509_buffer) * MAX_CHAIN_DEPTH); |
| |
| SessionCache[row].Sessions[idx].version = ssl->version; |
| SessionCache[row].Sessions[idx].cipherSuite0 = ssl->options.cipherSuite0; |
| SessionCache[row].Sessions[idx].cipherSuite = ssl->options.cipherSuite; |
| #endif |
| |
| SessionCache[row].totalCount++; |
| if (SessionCache[row].nextIdx == SESSIONS_PER_ROW) |
| SessionCache[row].nextIdx = 0; |
| |
| if (UnLockMutex(&session_mutex) != 0) |
| return BAD_MUTEX_ERROR; |
| |
| return 0; |
| } |
| |
| |
| #ifdef SESSION_STATS |
| |
| CYASSL_API |
| void PrintSessionStats(void) |
| { |
| word32 totalSessionsSeen = 0; |
| word32 totalSessionsNow = 0; |
| word32 rowNow; |
| int i; |
| double E; /* expected freq */ |
| double chiSquare = 0; |
| |
| for (i = 0; i < SESSION_ROWS; i++) { |
| totalSessionsSeen += SessionCache[i].totalCount; |
| |
| if (SessionCache[i].totalCount >= SESSIONS_PER_ROW) |
| rowNow = SESSIONS_PER_ROW; |
| else if (SessionCache[i].nextIdx == 0) |
| rowNow = 0; |
| else |
| rowNow = SessionCache[i].nextIdx; |
| |
| totalSessionsNow += rowNow; |
| } |
| |
| printf("Total Sessions Seen = %d\n", totalSessionsSeen); |
| printf("Total Sessions Now = %d\n", totalSessionsNow); |
| |
| E = (double)totalSessionsSeen / SESSION_ROWS; |
| |
| for (i = 0; i < SESSION_ROWS; i++) { |
| double diff = SessionCache[i].totalCount - E; |
| diff *= diff; /* square */ |
| diff /= E; /* normalize */ |
| |
| chiSquare += diff; |
| } |
| printf(" chi-square = %5.1f, d.f. = %d\n", chiSquare, |
| SESSION_ROWS - 1); |
| if (SESSION_ROWS == 11) |
| printf(" .05 p value = 18.3, chi-square should be less\n"); |
| else if (SESSION_ROWS == 211) |
| printf(".05 p value = 244.8, chi-square should be less\n"); |
| else if (SESSION_ROWS == 5981) |
| printf(".05 p value = 6161.0, chi-square should be less\n"); |
| else if (SESSION_ROWS == 3) |
| printf(".05 p value = 6.0, chi-square should be less\n"); |
| else if (SESSION_ROWS == 2861) |
| printf(".05 p value = 2985.5, chi-square should be less\n"); |
| printf("\n"); |
| } |
| |
| #endif /* SESSION_STATS */ |
| |
| #else /* NO_SESSION_CACHE */ |
| |
| /* No session cache version */ |
| CYASSL_SESSION* GetSession(CYASSL* ssl, byte* masterSecret) |
| { |
| return NULL; |
| } |
| |
| #endif /* NO_SESSION_CACHE */ |
| |
| |
| /* call before SSL_connect, if verifying will add name check to |
| date check and signature check */ |
| int CyaSSL_check_domain_name(CYASSL* ssl, const char* dn) |
| { |
| CYASSL_ENTER("CyaSSL_check_domain_name"); |
| if (ssl->buffers.domainName.buffer) |
| XFREE(ssl->buffers.domainName.buffer, ssl->heap, DYNAMIC_TYPE_DOMAIN); |
| |
| ssl->buffers.domainName.length = (word32)XSTRLEN(dn) + 1; |
| ssl->buffers.domainName.buffer = (byte*) XMALLOC( |
| ssl->buffers.domainName.length, ssl->heap, DYNAMIC_TYPE_DOMAIN); |
| |
| if (ssl->buffers.domainName.buffer) { |
| XSTRNCPY((char*)ssl->buffers.domainName.buffer, dn, |
| ssl->buffers.domainName.length); |
| return SSL_SUCCESS; |
| } |
| else { |
| ssl->error = MEMORY_ERROR; |
| return SSL_FAILURE; |
| } |
| } |
| |
| |
| /* turn on CyaSSL zlib compression |
| returns 0 for success, else error (not built in) |
| */ |
| int CyaSSL_set_compression(CYASSL* ssl) |
| { |
| CYASSL_ENTER("CyaSSL_set_compression"); |
| (void)ssl; |
| #ifdef HAVE_LIBZ |
| ssl->options.usingCompression = 1; |
| return 0; |
| #else |
| return NOT_COMPILED_IN; |
| #endif |
| } |
| |
| |
| #ifndef USE_WINDOWS_API |
| #ifndef NO_WRITEV |
| |
| /* simulate writev semantics, doesn't actually do block at a time though |
| because of SSL_write behavior and because front adds may be small */ |
| int CyaSSL_writev(CYASSL* ssl, const struct iovec* iov, int iovcnt) |
| { |
| byte tmp[OUTPUT_RECORD_SIZE]; |
| byte* myBuffer = tmp; |
| int send = 0; |
| int newBuffer = 0; |
| int idx = 0; |
| int i; |
| int ret; |
| |
| CYASSL_ENTER("CyaSSL_writev"); |
| |
| for (i = 0; i < iovcnt; i++) |
| send += iov[i].iov_len; |
| |
| if (send > (int)sizeof(tmp)) { |
| byte* tmp2 = (byte*) XMALLOC(send, ssl->heap, |
| DYNAMIC_TYPE_WRITEV); |
| if (!tmp2) |
| return MEMORY_ERROR; |
| myBuffer = tmp2; |
| newBuffer = 1; |
| } |
| |
| for (i = 0; i < iovcnt; i++) { |
| XMEMCPY(&myBuffer[idx], iov[i].iov_base, iov[i].iov_len); |
| idx += iov[i].iov_len; |
| } |
| |
| ret = CyaSSL_write(ssl, myBuffer, send); |
| |
| if (newBuffer) XFREE(myBuffer, ssl->heap, DYNAMIC_TYPE_WRITEV); |
| |
| return ret; |
| } |
| #endif |
| #endif |
| |
| |
| #ifdef CYASSL_CALLBACKS |
| |
| typedef struct itimerval Itimerval; |
| |
| /* don't keep calling simple functions while setting up timer and singals |
| if no inlining these are the next best */ |
| |
| #define AddTimes(a, b, c) \ |
| do { \ |
| c.tv_sec = a.tv_sec + b.tv_sec; \ |
| c.tv_usec = a.tv_usec + b.tv_usec; \ |
| if (c.tv_sec >= 1000000) { \ |
| c.tv_sec++; \ |
| c.tv_usec -= 1000000; \ |
| } \ |
| } while (0) |
| |
| |
| #define SubtractTimes(a, b, c) \ |
| do { \ |
| c.tv_sec = a.tv_sec - b.tv_sec; \ |
| c.tv_usec = a.tv_usec - b.tv_usec; \ |
| if (c.tv_sec < 0) { \ |
| c.tv_sec--; \ |
| c.tv_usec += 1000000; \ |
| } \ |
| } while (0) |
| |
| #define CmpTimes(a, b, cmp) \ |
| ((a.tv_sec == b.tv_sec) ? \ |
| (a.tv_usec cmp b.tv_usec) : \ |
| (a.tv_sec cmp b.tv_sec)) \ |
| |
| |
| /* do nothing handler */ |
| static void myHandler(int signo) |
| { |
| return; |
| } |
| |
| |
| static int CyaSSL_ex_wrapper(CYASSL* ssl, HandShakeCallBack hsCb, |
| TimeoutCallBack toCb, Timeval timeout) |
| { |
| int
|
