diff options
Diffstat (limited to 'ssl/ssl_asn1.c')
| -rw-r--r-- | ssl/ssl_asn1.c | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/ssl/ssl_asn1.c b/ssl/ssl_asn1.c new file mode 100644 index 0000000000..873497a877 --- /dev/null +++ b/ssl/ssl_asn1.c @@ -0,0 +1,313 @@ +/* ssl/ssl_asn1.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <stdlib.h> +#include "asn1_mac.h" +#include "objects.h" +#include "ssl_locl.h" + +typedef struct ssl_session_asn1_st + { + ASN1_INTEGER version; + ASN1_INTEGER ssl_version; + ASN1_OCTET_STRING cipher; + ASN1_OCTET_STRING master_key; + ASN1_OCTET_STRING session_id; + ASN1_OCTET_STRING key_arg; + ASN1_INTEGER time; + ASN1_INTEGER timeout; + } SSL_SESSION_ASN1; + +/* + * SSLerr(SSL_F_I2D_SSL_SESSION,SSL_R_CIPHER_CODE_WRONG_LENGTH); + * SSLerr(SSL_F_D2I_SSL_SESSION,SSL_R_UNSUPPORTED_CIPHER); + */ + +int i2d_SSL_SESSION(in,pp) +SSL_SESSION *in; +unsigned char **pp; + { +#define LSIZE2 (sizeof(long)*2) + int v1=0,v2=0,v3=0; + unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2]; + unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2]; + long l; + SSL_SESSION_ASN1 a; + M_ASN1_I2D_vars(in); + + if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0))) + return(0); + + /* Note that I cheat in the following 2 assignments. I know + * that if the ASN1_INTERGER passed to ASN1_INTEGER_set + * is > sizeof(long)+1, the buffer will not be re-Malloc()ed. + * This is a bit evil but makes things simple, no dynamic allocation + * to clean up :-) */ + a.version.length=LSIZE2; + a.version.type=V_ASN1_INTEGER; + a.version.data=ibuf1; + ASN1_INTEGER_set(&(a.version),SSL_SESSION_ASN1_VERSION); + + a.ssl_version.length=LSIZE2; + a.ssl_version.type=V_ASN1_INTEGER; + a.ssl_version.data=ibuf2; + ASN1_INTEGER_set(&(a.ssl_version),in->ssl_version); + + a.cipher.type=V_ASN1_OCTET_STRING; + a.cipher.data=buf; + + if (in->cipher == NULL) + l=in->cipher_id; + else + l=in->cipher->id; + if (in->ssl_version == 2) + { + a.cipher.length=3; + buf[0]=((unsigned char)(l>>16L))&0xff; + buf[1]=((unsigned char)(l>> 8L))&0xff; + buf[2]=((unsigned char)(l ))&0xff; + } + else + { + a.cipher.length=2; + buf[0]=((unsigned char)(l>>8L))&0xff; + buf[1]=((unsigned char)(l ))&0xff; + } + + a.master_key.length=in->master_key_length; + a.master_key.type=V_ASN1_OCTET_STRING; + a.master_key.data=in->master_key; + + a.session_id.length=in->session_id_length; + a.session_id.type=V_ASN1_OCTET_STRING; + a.session_id.data=in->session_id; + + a.key_arg.length=in->key_arg_length; + a.key_arg.type=V_ASN1_OCTET_STRING; + a.key_arg.data=in->key_arg; + + if (in->time != 0L) + { + a.time.length=LSIZE2; + a.time.type=V_ASN1_INTEGER; + a.time.data=ibuf3; + ASN1_INTEGER_set(&(a.time),in->time); + } + + if (in->timeout != 0L) + { + a.timeout.length=LSIZE2; + a.timeout.type=V_ASN1_INTEGER; + a.timeout.data=ibuf4; + ASN1_INTEGER_set(&(a.timeout),in->timeout); + } + + M_ASN1_I2D_len(&(a.version), i2d_ASN1_INTEGER); + M_ASN1_I2D_len(&(a.ssl_version), i2d_ASN1_INTEGER); + M_ASN1_I2D_len(&(a.cipher), i2d_ASN1_OCTET_STRING); + M_ASN1_I2D_len(&(a.session_id), i2d_ASN1_OCTET_STRING); + M_ASN1_I2D_len(&(a.master_key), i2d_ASN1_OCTET_STRING); + if (in->key_arg_length > 0) + M_ASN1_I2D_len_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING); + if (in->time != 0L) + M_ASN1_I2D_len_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1); + if (in->timeout != 0L) + M_ASN1_I2D_len_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2); + if (in->peer != NULL) + M_ASN1_I2D_len_EXP_opt(in->peer,i2d_X509,3,v3); + + M_ASN1_I2D_seq_total(); + + M_ASN1_I2D_put(&(a.version), i2d_ASN1_INTEGER); + M_ASN1_I2D_put(&(a.ssl_version), i2d_ASN1_INTEGER); + M_ASN1_I2D_put(&(a.cipher), i2d_ASN1_OCTET_STRING); + M_ASN1_I2D_put(&(a.session_id), i2d_ASN1_OCTET_STRING); + M_ASN1_I2D_put(&(a.master_key), i2d_ASN1_OCTET_STRING); + if (in->key_arg_length > 0) + M_ASN1_I2D_put_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING,0); + if (in->time != 0L) + M_ASN1_I2D_put_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1); + if (in->timeout != 0L) + M_ASN1_I2D_put_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2); + if (in->peer != NULL) + M_ASN1_I2D_put_EXP_opt(in->peer,i2d_X509,3,v3); + + M_ASN1_I2D_finish(); + } + +SSL_SESSION *d2i_SSL_SESSION(a,pp,length) +SSL_SESSION **a; +unsigned char **pp; +long length; + { + int version,ssl_version=0,i; + long id; + ASN1_INTEGER ai,*aip; + ASN1_OCTET_STRING os,*osp; + M_ASN1_D2I_vars(a,SSL_SESSION *,SSL_SESSION_new); + + aip= &ai; + osp= &os; + + M_ASN1_D2I_Init(); + M_ASN1_D2I_start_sequence(); + + ai.data=NULL; ai.length=0; + M_ASN1_D2I_get(aip,d2i_ASN1_INTEGER); + version=(int)ASN1_INTEGER_get(aip); + if (ai.data != NULL) { Free(ai.data); ai.data=NULL; ai.length=0; } + + /* we don't care about the version right now :-) */ + M_ASN1_D2I_get(aip,d2i_ASN1_INTEGER); + ssl_version=(int)ASN1_INTEGER_get(aip); + ret->ssl_version=ssl_version; + if (ai.data != NULL) { Free(ai.data); ai.data=NULL; ai.length=0; } + + os.data=NULL; os.length=0; + M_ASN1_D2I_get(osp,d2i_ASN1_OCTET_STRING); + if (ssl_version == 2) + { + if (os.length != 3) + { + c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH; + goto err; + } + id=0x02000000L| + ((unsigned long)os.data[0]<<16L)| + ((unsigned long)os.data[1]<< 8L)| + (unsigned long)os.data[2]; + } + else if (ssl_version == 3) + { + if (os.length != 2) + { + c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH; + goto err; + } + id=0x03000000L| + ((unsigned long)os.data[0]<<8L)| + (unsigned long)os.data[1]; + } + else + { + SSLerr(SSL_F_D2I_SSL_SESSION,SSL_R_UNKNOWN_SSL_VERSION); + return(NULL); + } + + ret->cipher=NULL; + ret->cipher_id=id; + + M_ASN1_D2I_get(osp,d2i_ASN1_OCTET_STRING); + if (ssl_version == 3) + i=SSL3_MAX_SSL_SESSION_ID_LENGTH; + else /* if (ssl_version == 2) */ + i=SSL2_MAX_SSL_SESSION_ID_LENGTH; + + if (os.length > i) + os.length=i; + + ret->session_id_length=os.length; + memcpy(ret->session_id,os.data,os.length); + + M_ASN1_D2I_get(osp,d2i_ASN1_OCTET_STRING); + if (ret->master_key_length > SSL_MAX_MASTER_KEY_LENGTH) + ret->master_key_length=SSL_MAX_MASTER_KEY_LENGTH; + else + ret->master_key_length=os.length; + memcpy(ret->master_key,os.data,ret->master_key_length); + + os.length=0; + M_ASN1_D2I_get_IMP_opt(osp,d2i_ASN1_OCTET_STRING,0,V_ASN1_OCTET_STRING); + if (os.length > SSL_MAX_KEY_ARG_LENGTH) + ret->key_arg_length=SSL_MAX_KEY_ARG_LENGTH; + else + ret->key_arg_length=os.length; + memcpy(ret->key_arg,os.data,ret->key_arg_length); + if (os.data != NULL) Free(os.data); + + ai.length=0; + M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,1); + if (ai.data != NULL) + { + ret->time=ASN1_INTEGER_get(aip); + Free(ai.data); ai.data=NULL; ai.length=0; + } + else + ret->time=time(NULL); + + ai.length=0; + M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,2); + if (ai.data != NULL) + { + ret->timeout=ASN1_INTEGER_get(aip); + Free(ai.data); ai.data=NULL; ai.length=0; + } + else + ret->timeout=3; + + if (ret->peer != NULL) + { + X509_free(ret->peer); + ret->peer=NULL; + } + M_ASN1_D2I_get_EXP_opt(ret->peer,d2i_X509,3); + + M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION); + } + |