diff options
Diffstat (limited to 'openssl/ssl/s2_srvr.c')
| -rw-r--r-- | openssl/ssl/s2_srvr.c | 2021 |
1 files changed, 1011 insertions, 1010 deletions
diff --git a/openssl/ssl/s2_srvr.c b/openssl/ssl/s2_srvr.c index 59ced3f30..19bb48c9c 100644 --- a/openssl/ssl/s2_srvr.c +++ b/openssl/ssl/s2_srvr.c @@ -5,21 +5,21 @@ * 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: @@ -34,10 +34,10 @@ * 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 + * 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 @@ -49,7 +49,7 @@ * 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 @@ -63,7 +63,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * 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 @@ -111,1046 +111,1047 @@ #include "ssl_locl.h" #ifndef OPENSSL_NO_SSL2 -#include <stdio.h> -#include <openssl/bio.h> -#include <openssl/rand.h> -#include <openssl/objects.h> -#include <openssl/evp.h> +# include <stdio.h> +# include <openssl/bio.h> +# include <openssl/rand.h> +# include <openssl/objects.h> +# include <openssl/evp.h> static const SSL_METHOD *ssl2_get_server_method(int ver); static int get_client_master_key(SSL *s); static int get_client_hello(SSL *s); -static int server_hello(SSL *s); +static int server_hello(SSL *s); static int get_client_finished(SSL *s); static int server_verify(SSL *s); static int server_finish(SSL *s); static int request_certificate(SSL *s); static int ssl_rsa_private_decrypt(CERT *c, int len, unsigned char *from, - unsigned char *to,int padding); -#define BREAK break + unsigned char *to, int padding); +# define BREAK break static const SSL_METHOD *ssl2_get_server_method(int ver) - { - if (ver == SSL2_VERSION) - return(SSLv2_server_method()); - else - return(NULL); - } +{ + if (ver == SSL2_VERSION) + return (SSLv2_server_method()); + else + return (NULL); +} IMPLEMENT_ssl2_meth_func(SSLv2_server_method, - ssl2_accept, - ssl_undefined_function, - ssl2_get_server_method) + ssl2_accept, + ssl_undefined_function, ssl2_get_server_method) int ssl2_accept(SSL *s) - { - unsigned long l=(unsigned long)time(NULL); - BUF_MEM *buf=NULL; - int ret= -1; - long num1; - void (*cb)(const SSL *ssl,int type,int val)=NULL; - int new_state,state; - - RAND_add(&l,sizeof(l),0); - ERR_clear_error(); - clear_sys_error(); - - if (s->info_callback != NULL) - cb=s->info_callback; - else if (s->ctx->info_callback != NULL) - cb=s->ctx->info_callback; - - /* init things to blank */ - s->in_handshake++; - if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); - - if (s->cert == NULL) - { - SSLerr(SSL_F_SSL2_ACCEPT,SSL_R_NO_CERTIFICATE_SET); - return(-1); - } - - clear_sys_error(); - for (;;) - { - state=s->state; - - switch (s->state) - { - case SSL_ST_BEFORE: - case SSL_ST_ACCEPT: - case SSL_ST_BEFORE|SSL_ST_ACCEPT: - case SSL_ST_OK|SSL_ST_ACCEPT: - - s->server=1; - if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1); - - s->version=SSL2_VERSION; - s->type=SSL_ST_ACCEPT; - - if(s->init_buf == NULL) - { - if ((buf=BUF_MEM_new()) == NULL) - { - ret= -1; - goto end; - } - if (!BUF_MEM_grow(buf,(int) SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) - { - BUF_MEM_free(buf); - ret= -1; - goto end; - } - s->init_buf=buf; - } - s->init_num=0; - s->ctx->stats.sess_accept++; - s->handshake_func=ssl2_accept; - s->state=SSL2_ST_GET_CLIENT_HELLO_A; - BREAK; - - case SSL2_ST_GET_CLIENT_HELLO_A: - case SSL2_ST_GET_CLIENT_HELLO_B: - case SSL2_ST_GET_CLIENT_HELLO_C: - s->shutdown=0; - ret=get_client_hello(s); - if (ret <= 0) goto end; - s->init_num=0; - s->state=SSL2_ST_SEND_SERVER_HELLO_A; - BREAK; - - case SSL2_ST_SEND_SERVER_HELLO_A: - case SSL2_ST_SEND_SERVER_HELLO_B: - ret=server_hello(s); - if (ret <= 0) goto end; - s->init_num=0; - if (!s->hit) - { - s->state=SSL2_ST_GET_CLIENT_MASTER_KEY_A; - BREAK; - } - else - { - s->state=SSL2_ST_SERVER_START_ENCRYPTION; - BREAK; - } - case SSL2_ST_GET_CLIENT_MASTER_KEY_A: - case SSL2_ST_GET_CLIENT_MASTER_KEY_B: - ret=get_client_master_key(s); - if (ret <= 0) goto end; - s->init_num=0; - s->state=SSL2_ST_SERVER_START_ENCRYPTION; - BREAK; - - case SSL2_ST_SERVER_START_ENCRYPTION: - /* Ok we how have sent all the stuff needed to - * start encrypting, the next packet back will - * be encrypted. */ - if (!ssl2_enc_init(s,0)) - { ret= -1; goto end; } - s->s2->clear_text=0; - s->state=SSL2_ST_SEND_SERVER_VERIFY_A; - BREAK; - - case SSL2_ST_SEND_SERVER_VERIFY_A: - case SSL2_ST_SEND_SERVER_VERIFY_B: - ret=server_verify(s); - if (ret <= 0) goto end; - s->init_num=0; - if (s->hit) - { - /* If we are in here, we have been - * buffering the output, so we need to - * flush it and remove buffering from - * future traffic */ - s->state=SSL2_ST_SEND_SERVER_VERIFY_C; - BREAK; - } - else - { - s->state=SSL2_ST_GET_CLIENT_FINISHED_A; - break; - } - - case SSL2_ST_SEND_SERVER_VERIFY_C: - /* get the number of bytes to write */ - num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL); - if (num1 > 0) - { - s->rwstate=SSL_WRITING; - num1=BIO_flush(s->wbio); - if (num1 <= 0) { ret= -1; goto end; } - s->rwstate=SSL_NOTHING; - } - - /* flushed and now remove buffering */ - s->wbio=BIO_pop(s->wbio); - - s->state=SSL2_ST_GET_CLIENT_FINISHED_A; - BREAK; - - case SSL2_ST_GET_CLIENT_FINISHED_A: - case SSL2_ST_GET_CLIENT_FINISHED_B: - ret=get_client_finished(s); - if (ret <= 0) - goto end; - s->init_num=0; - s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_A; - BREAK; - - case SSL2_ST_SEND_REQUEST_CERTIFICATE_A: - case SSL2_ST_SEND_REQUEST_CERTIFICATE_B: - case SSL2_ST_SEND_REQUEST_CERTIFICATE_C: - case SSL2_ST_SEND_REQUEST_CERTIFICATE_D: - /* don't do a 'request certificate' if we - * don't want to, or we already have one, and - * we only want to do it once. */ - if (!(s->verify_mode & SSL_VERIFY_PEER) || - ((s->session->peer != NULL) && - (s->verify_mode & SSL_VERIFY_CLIENT_ONCE))) - { - s->state=SSL2_ST_SEND_SERVER_FINISHED_A; - break; - } - else - { - ret=request_certificate(s); - if (ret <= 0) goto end; - s->init_num=0; - s->state=SSL2_ST_SEND_SERVER_FINISHED_A; - } - BREAK; - - case SSL2_ST_SEND_SERVER_FINISHED_A: - case SSL2_ST_SEND_SERVER_FINISHED_B: - ret=server_finish(s); - if (ret <= 0) goto end; - s->init_num=0; - s->state=SSL_ST_OK; - break; - - case SSL_ST_OK: - BUF_MEM_free(s->init_buf); - ssl_free_wbio_buffer(s); - s->init_buf=NULL; - s->init_num=0; - /* ERR_clear_error();*/ - - ssl_update_cache(s,SSL_SESS_CACHE_SERVER); - - s->ctx->stats.sess_accept_good++; - /* s->server=1; */ - ret=1; - - if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1); - - goto end; - /* BREAK; */ - - default: - SSLerr(SSL_F_SSL2_ACCEPT,SSL_R_UNKNOWN_STATE); - ret= -1; - goto end; - /* BREAK; */ - } - - if ((cb != NULL) && (s->state != state)) - { - new_state=s->state; - s->state=state; - cb(s,SSL_CB_ACCEPT_LOOP,1); - s->state=new_state; - } - } -end: - s->in_handshake--; - if (cb != NULL) - cb(s,SSL_CB_ACCEPT_EXIT,ret); - return(ret); - } +{ + unsigned long l = (unsigned long)time(NULL); + BUF_MEM *buf = NULL; + int ret = -1; + long num1; + void (*cb) (const SSL *ssl, int type, int val) = NULL; + int new_state, state; + + RAND_add(&l, sizeof(l), 0); + ERR_clear_error(); + clear_sys_error(); + + if (s->info_callback != NULL) + cb = s->info_callback; + else if (s->ctx->info_callback != NULL) + cb = s->ctx->info_callback; + + /* init things to blank */ + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) + SSL_clear(s); + + if (s->cert == NULL) { + SSLerr(SSL_F_SSL2_ACCEPT, SSL_R_NO_CERTIFICATE_SET); + return (-1); + } + + clear_sys_error(); + for (;;) { + state = s->state; + + switch (s->state) { + case SSL_ST_BEFORE: + case SSL_ST_ACCEPT: + case SSL_ST_BEFORE | SSL_ST_ACCEPT: + case SSL_ST_OK | SSL_ST_ACCEPT: + + s->server = 1; + if (cb != NULL) + cb(s, SSL_CB_HANDSHAKE_START, 1); + + s->version = SSL2_VERSION; + s->type = SSL_ST_ACCEPT; + + if (s->init_buf == NULL) { + if ((buf = BUF_MEM_new()) == NULL) { + ret = -1; + goto end; + } + if (!BUF_MEM_grow + (buf, (int)SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) { + BUF_MEM_free(buf); + ret = -1; + goto end; + } + s->init_buf = buf; + } + s->init_num = 0; + s->ctx->stats.sess_accept++; + s->handshake_func = ssl2_accept; + s->state = SSL2_ST_GET_CLIENT_HELLO_A; + BREAK; + + case SSL2_ST_GET_CLIENT_HELLO_A: + case SSL2_ST_GET_CLIENT_HELLO_B: + case SSL2_ST_GET_CLIENT_HELLO_C: + s->shutdown = 0; + ret = get_client_hello(s); + if (ret <= 0) + goto end; + s->init_num = 0; + s->state = SSL2_ST_SEND_SERVER_HELLO_A; + BREAK; + + case SSL2_ST_SEND_SERVER_HELLO_A: + case SSL2_ST_SEND_SERVER_HELLO_B: + ret = server_hello(s); + if (ret <= 0) + goto end; + s->init_num = 0; + if (!s->hit) { + s->state = SSL2_ST_GET_CLIENT_MASTER_KEY_A; + BREAK; + } else { + s->state = SSL2_ST_SERVER_START_ENCRYPTION; + BREAK; + } + case SSL2_ST_GET_CLIENT_MASTER_KEY_A: + case SSL2_ST_GET_CLIENT_MASTER_KEY_B: + ret = get_client_master_key(s); + if (ret <= 0) + goto end; + s->init_num = 0; + s->state = SSL2_ST_SERVER_START_ENCRYPTION; + BREAK; + + case SSL2_ST_SERVER_START_ENCRYPTION: + /* + * Ok we how have sent all the stuff needed to start encrypting, + * the next packet back will be encrypted. + */ + if (!ssl2_enc_init(s, 0)) { + ret = -1; + goto end; + } + s->s2->clear_text = 0; + s->state = SSL2_ST_SEND_SERVER_VERIFY_A; + BREAK; + + case SSL2_ST_SEND_SERVER_VERIFY_A: + case SSL2_ST_SEND_SERVER_VERIFY_B: + ret = server_verify(s); + if (ret <= 0) + goto end; + s->init_num = 0; + if (s->hit) { + /* + * If we are in here, we have been buffering the output, so + * we need to flush it and remove buffering from future + * traffic + */ + s->state = SSL2_ST_SEND_SERVER_VERIFY_C; + BREAK; + } else { + s->state = SSL2_ST_GET_CLIENT_FINISHED_A; + break; + } + + case SSL2_ST_SEND_SERVER_VERIFY_C: + /* get the number of bytes to write */ + num1 = BIO_ctrl(s->wbio, BIO_CTRL_INFO, 0, NULL); + if (num1 > 0) { + s->rwstate = SSL_WRITING; + num1 = BIO_flush(s->wbio); + if (num1 <= 0) { + ret = -1; + goto end; + } + s->rwstate = SSL_NOTHING; + } + + /* flushed and now remove buffering */ + s->wbio = BIO_pop(s->wbio); + + s->state = SSL2_ST_GET_CLIENT_FINISHED_A; + BREAK; + + case SSL2_ST_GET_CLIENT_FINISHED_A: + case SSL2_ST_GET_CLIENT_FINISHED_B: + ret = get_client_finished(s); + if (ret <= 0) + goto end; + s->init_num = 0; + s->state = SSL2_ST_SEND_REQUEST_CERTIFICATE_A; + BREAK; + + case SSL2_ST_SEND_REQUEST_CERTIFICATE_A: + case SSL2_ST_SEND_REQUEST_CERTIFICATE_B: + case SSL2_ST_SEND_REQUEST_CERTIFICATE_C: + case SSL2_ST_SEND_REQUEST_CERTIFICATE_D: + /* + * don't do a 'request certificate' if we don't want to, or we + * already have one, and we only want to do it once. + */ + if (!(s->verify_mode & SSL_VERIFY_PEER) || + ((s->session->peer != NULL) && + (s->verify_mode & SSL_VERIFY_CLIENT_ONCE))) { + s->state = SSL2_ST_SEND_SERVER_FINISHED_A; + break; + } else { + ret = request_certificate(s); + if (ret <= 0) + goto end; + s->init_num = 0; + s->state = SSL2_ST_SEND_SERVER_FINISHED_A; + } + BREAK; + + case SSL2_ST_SEND_SERVER_FINISHED_A: + case SSL2_ST_SEND_SERVER_FINISHED_B: + ret = server_finish(s); + if (ret <= 0) + goto end; + s->init_num = 0; + s->state = SSL_ST_OK; + break; + + case SSL_ST_OK: + BUF_MEM_free(s->init_buf); + ssl_free_wbio_buffer(s); + s->init_buf = NULL; + s->init_num = 0; + /* ERR_clear_error(); */ + + ssl_update_cache(s, SSL_SESS_CACHE_SERVER); + + s->ctx->stats.sess_accept_good++; + /* s->server=1; */ + ret = 1; + + if (cb != NULL) + cb(s, SSL_CB_HANDSHAKE_DONE, 1); + + goto end; + /* BREAK; */ + + default: + SSLerr(SSL_F_SSL2_ACCEPT, SSL_R_UNKNOWN_STATE); + ret = -1; + goto end; + /* BREAK; */ + } + + if ((cb != NULL) && (s->state != state)) { + new_state = s->state; + s->state = state; + cb(s, SSL_CB_ACCEPT_LOOP, 1); + s->state = new_state; + } + } + end: + s->in_handshake--; + if (cb != NULL) + cb(s, SSL_CB_ACCEPT_EXIT, ret); + return (ret); +} static int get_client_master_key(SSL *s) - { - int is_export,i,n,keya,ek; - unsigned long len; - unsigned char *p; - const SSL_CIPHER *cp; - const EVP_CIPHER *c; - const EVP_MD *md; - - p=(unsigned char *)s->init_buf->data; - if (s->state == SSL2_ST_GET_CLIENT_MASTER_KEY_A) - { - i=ssl2_read(s,(char *)&(p[s->init_num]),10-s->init_num); - - if (i < (10-s->init_num)) - return(ssl2_part_read(s,SSL_F_GET_CLIENT_MASTER_KEY,i)); - s->init_num = 10; - - if (*(p++) != SSL2_MT_CLIENT_MASTER_KEY) - { - if (p[-1] != SSL2_MT_ERROR) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_READ_WRONG_PACKET_TYPE); - } - else - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_PEER_ERROR); - return(-1); - } - - cp=ssl2_get_cipher_by_char(p); - if (cp == NULL) - { - ssl2_return_error(s,SSL2_PE_NO_CIPHER); - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_NO_CIPHER_MATCH); - return(-1); - } - s->session->cipher= cp; - - p+=3; - n2s(p,i); s->s2->tmp.clear=i; - n2s(p,i); s->s2->tmp.enc=i; - n2s(p,i); - if(i > SSL_MAX_KEY_ARG_LENGTH) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_KEY_ARG_TOO_LONG); - return -1; - } - s->session->key_arg_length=i; - s->state=SSL2_ST_GET_CLIENT_MASTER_KEY_B; - } - - /* SSL2_ST_GET_CLIENT_MASTER_KEY_B */ - p=(unsigned char *)s->init_buf->data; - if (s->init_buf->length < SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR); - return -1; - } - keya=s->session->key_arg_length; - len = 10 + (unsigned long)s->s2->tmp.clear + (unsigned long)s->s2->tmp.enc + (unsigned long)keya; - if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_MESSAGE_TOO_LONG); - return -1; - } - n = (int)len - s->init_num; - i = ssl2_read(s,(char *)&(p[s->init_num]),n); - if (i != n) return(ssl2_part_read(s,SSL_F_GET_CLIENT_MASTER_KEY,i)); - if (s->msg_callback) - s->msg_callback(0, s->version, 0, p, (size_t)len, s, s->msg_callback_arg); /* CLIENT-MASTER-KEY */ - p += 10; - - memcpy(s->session->key_arg,&(p[s->s2->tmp.clear+s->s2->tmp.enc]), - (unsigned int)keya); - - if (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_NO_PRIVATEKEY); - return(-1); - } - i=ssl_rsa_private_decrypt(s->cert,s->s2->tmp.enc, - &(p[s->s2->tmp.clear]),&(p[s->s2->tmp.clear]), - (s->s2->ssl2_rollback)?RSA_SSLV23_PADDING:RSA_PKCS1_PADDING); - - is_export=SSL_C_IS_EXPORT(s->session->cipher); - - if (!ssl_cipher_get_evp(s->session,&c,&md,NULL,NULL,NULL)) - { - ssl2_return_error(s,SSL2_PE_NO_CIPHER); - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS); - return(0); - } - - if (s->session->cipher->algorithm2 & SSL2_CF_8_BYTE_ENC) - { - is_export=1; - ek=8; - } - else - ek=5; - - /* bad decrypt */ -#if 1 - /* If a bad decrypt, continue with protocol but with a - * random master secret (Bleichenbacher attack) */ - if ((i < 0) || - ((!is_export && (i != EVP_CIPHER_key_length(c))) - || (is_export && ((i != ek) || (s->s2->tmp.clear+(unsigned int)i != - (unsigned int)EVP_CIPHER_key_length(c)))))) - { - ERR_clear_error(); - if (is_export) - i=ek; - else - i=EVP_CIPHER_key_length(c); - if (RAND_pseudo_bytes(p,i) <= 0) - return 0; - } -#else - if (i < 0) - { - error=1; - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_BAD_RSA_DECRYPT); - } - /* incorrect number of key bytes for non export cipher */ - else if ((!is_export && (i != EVP_CIPHER_key_length(c))) - || (is_export && ((i != ek) || (s->s2->tmp.clear+i != - EVP_CIPHER_key_length(c))))) - { - error=1; - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_WRONG_NUMBER_OF_KEY_BITS); - } - if (error) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - return(-1); - } -#endif +{ + int is_export, i, n, keya; + unsigned int ek; + unsigned long len; + unsigned char *p; + const SSL_CIPHER *cp; + const EVP_CIPHER *c; + const EVP_MD *md; + + p = (unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_GET_CLIENT_MASTER_KEY_A) { + i = ssl2_read(s, (char *)&(p[s->init_num]), 10 - s->init_num); + + if (i < (10 - s->init_num)) + return (ssl2_part_read(s, SSL_F_GET_CLIENT_MASTER_KEY, i)); + s->init_num = 10; + + if (*(p++) != SSL2_MT_CLIENT_MASTER_KEY) { + if (p[-1] != SSL2_MT_ERROR) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, + SSL_R_READ_WRONG_PACKET_TYPE); + } else + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_PEER_ERROR); + return (-1); + } + + cp = ssl2_get_cipher_by_char(p); + if (cp == NULL) { + ssl2_return_error(s, SSL2_PE_NO_CIPHER); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_NO_CIPHER_MATCH); + return (-1); + } + s->session->cipher = cp; + + p += 3; + n2s(p, i); + s->s2->tmp.clear = i; + n2s(p, i); + s->s2->tmp.enc = i; + n2s(p, i); + if (i > SSL_MAX_KEY_ARG_LENGTH) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_KEY_ARG_TOO_LONG); + return -1; + } + s->session->key_arg_length = i; + s->state = SSL2_ST_GET_CLIENT_MASTER_KEY_B; + } + + /* SSL2_ST_GET_CLIENT_MASTER_KEY_B */ + p = (unsigned char *)s->init_buf->data; + if (s->init_buf->length < SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR); + return -1; + } + keya = s->session->key_arg_length; + len = + 10 + (unsigned long)s->s2->tmp.clear + (unsigned long)s->s2->tmp.enc + + (unsigned long)keya; + if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_MESSAGE_TOO_LONG); + return -1; + } + n = (int)len - s->init_num; + i = ssl2_read(s, (char *)&(p[s->init_num]), n); + if (i != n) + return (ssl2_part_read(s, SSL_F_GET_CLIENT_MASTER_KEY, i)); + if (s->msg_callback) { + /* CLIENT-MASTER-KEY */ + s->msg_callback(0, s->version, 0, p, (size_t)len, s, + s->msg_callback_arg); + } + p += 10; + + memcpy(s->session->key_arg, &(p[s->s2->tmp.clear + s->s2->tmp.enc]), + (unsigned int)keya); + + if (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_NO_PRIVATEKEY); + return (-1); + } + + is_export = SSL_C_IS_EXPORT(s->session->cipher); + + if (!ssl_cipher_get_evp(s->session, &c, &md, NULL, NULL, NULL)) { + ssl2_return_error(s, SSL2_PE_NO_CIPHER); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, + SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS); + return (0); + } + + if (s->session->cipher->algorithm2 & SSL2_CF_8_BYTE_ENC) { + is_export = 1; + ek = 8; + } else + ek = 5; + + /* + * The format of the CLIENT-MASTER-KEY message is + * 1 byte message type + * 3 bytes cipher + * 2-byte clear key length (stored in s->s2->tmp.clear) + * 2-byte encrypted key length (stored in s->s2->tmp.enc) + * 2-byte key args length (IV etc) + * clear key + * encrypted key + * key args + * + * If the cipher is an export cipher, then the encrypted key bytes + * are a fixed portion of the total key (5 or 8 bytes). The size of + * this portion is in |ek|. If the cipher is not an export cipher, + * then the entire key material is encrypted (i.e., clear key length + * must be zero). + */ + if ((!is_export && s->s2->tmp.clear != 0) || + (is_export && s->s2->tmp.clear + ek != (unsigned int)EVP_CIPHER_key_length(c))) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_BAD_LENGTH); + return -1; + } + /* + * The encrypted blob must decrypt to the encrypted portion of the key. + * Decryption can't be expanding, so if we don't have enough encrypted + * bytes to fit the key in the buffer, stop now. + */ + if ((is_export && s->s2->tmp.enc < ek) || + (!is_export && s->s2->tmp.enc < (unsigned int)EVP_CIPHER_key_length(c))) { + ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY,SSL_R_LENGTH_TOO_SHORT); + return -1; + } + + i = ssl_rsa_private_decrypt(s->cert, s->s2->tmp.enc, + &(p[s->s2->tmp.clear]), + &(p[s->s2->tmp.clear]), + (s->s2->ssl2_rollback) ? RSA_SSLV23_PADDING : + RSA_PKCS1_PADDING); + + /* bad decrypt */ +# if 1 + /* + * If a bad decrypt, continue with protocol but with a random master + * secret (Bleichenbacher attack) + */ + if ((i < 0) || ((!is_export && i != EVP_CIPHER_key_length(c)) + || (is_export && i != (int)ek))) { + ERR_clear_error(); + if (is_export) + i = ek; + else + i = EVP_CIPHER_key_length(c); + if (RAND_pseudo_bytes(&p[s->s2->tmp.clear], i) <= 0) + return 0; + } +# else + if (i < 0) { + error = 1; + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_BAD_RSA_DECRYPT); + } + /* incorrect number of key bytes for non export cipher */ + else if ((!is_export && (i != EVP_CIPHER_key_length(c))) + || (is_export && ((i != ek) || (s->s2->tmp.clear + i != + EVP_CIPHER_key_length(c))))) { + error = 1; + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_WRONG_NUMBER_OF_KEY_BITS); + } + if (error) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + return (-1); + } +# endif - if (is_export) i+=s->s2->tmp.clear; + if (is_export) + i = EVP_CIPHER_key_length(c); - if (i > SSL_MAX_MASTER_KEY_LENGTH) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR); - return -1; - } - s->session->master_key_length=i; - memcpy(s->session->master_key,p,(unsigned int)i); - return(1); - } + if (i > SSL_MAX_MASTER_KEY_LENGTH) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR); + return -1; + } + s->session->master_key_length = i; + memcpy(s->session->master_key, p, (unsigned int)i); + return (1); +} static int get_client_hello(SSL *s) - { - int i,n; - unsigned long len; - unsigned char *p; - STACK_OF(SSL_CIPHER) *cs; /* a stack of SSL_CIPHERS */ - STACK_OF(SSL_CIPHER) *cl; /* the ones we want to use */ - STACK_OF(SSL_CIPHER) *prio, *allow; - int z; - - /* This is a bit of a hack to check for the correct packet - * type the first time round. */ - if (s->state == SSL2_ST_GET_CLIENT_HELLO_A) - { - s->first_packet=1; - s->state=SSL2_ST_GET_CLIENT_HELLO_B; - } - - p=(unsigned char *)s->init_buf->data; - if (s->state == SSL2_ST_GET_CLIENT_HELLO_B) - { - i=ssl2_read(s,(char *)&(p[s->init_num]),9-s->init_num); - if (i < (9-s->init_num)) - return(ssl2_part_read(s,SSL_F_GET_CLIENT_HELLO,i)); - s->init_num = 9; - - if (*(p++) != SSL2_MT_CLIENT_HELLO) - { - if (p[-1] != SSL2_MT_ERROR) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_READ_WRONG_PACKET_TYPE); - } - else - SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_PEER_ERROR); - return(-1); - } - n2s(p,i); - if (i < s->version) s->version=i; - n2s(p,i); s->s2->tmp.cipher_spec_length=i; - n2s(p,i); s->s2->tmp.session_id_length=i; - n2s(p,i); s->s2->challenge_length=i; - if ( (i < SSL2_MIN_CHALLENGE_LENGTH) || - (i > SSL2_MAX_CHALLENGE_LENGTH)) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_INVALID_CHALLENGE_LENGTH); - return(-1); - } - s->state=SSL2_ST_GET_CLIENT_HELLO_C; - } - - /* SSL2_ST_GET_CLIENT_HELLO_C */ - p=(unsigned char *)s->init_buf->data; - len = 9 + (unsigned long)s->s2->tmp.cipher_spec_length + (unsigned long)s->s2->challenge_length + (unsigned long)s->s2->tmp.session_id_length; - if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_MESSAGE_TOO_LONG); - return -1; - } - n = (int)len - s->init_num; - i = ssl2_read(s,(char *)&(p[s->init_num]),n); - if (i != n) return(ssl2_part_read(s,SSL_F_GET_CLIENT_HELLO,i)); - if (s->msg_callback) - s->msg_callback(0, s->version, 0, p, (size_t)len, s, s->msg_callback_arg); /* CLIENT-HELLO */ - p += 9; - - /* get session-id before cipher stuff so we can get out session - * structure if it is cached */ - /* session-id */ - if ((s->s2->tmp.session_id_length != 0) && - (s->s2->tmp.session_id_length != SSL2_SSL_SESSION_ID_LENGTH)) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_BAD_SSL_SESSION_ID_LENGTH); - return(-1); - } - - if (s->s2->tmp.session_id_length == 0) - { - if (!ssl_get_new_session(s,1)) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - return(-1); - } - } - else - { - i=ssl_get_prev_session(s,&(p[s->s2->tmp.cipher_spec_length]), - s->s2->tmp.session_id_length, NULL); - if (i == 1) - { /* previous session */ - s->hit=1; - } - else if (i == -1) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - return(-1); - } - else - { - if (s->cert == NULL) - { - ssl2_return_error(s,SSL2_PE_NO_CERTIFICATE); - SSLerr(SSL_F_GET_CLIENT_HELLO,SSL_R_NO_CERTIFICATE_SET); - return(-1); - } - - if (!ssl_get_new_session(s,1)) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - return(-1); - } - } - } - - if (!s->hit) - { - cs=ssl_bytes_to_cipher_list(s,p,s->s2->tmp.cipher_spec_length, - &s->session->ciphers); - if (cs == NULL) goto mem_err; - - cl=SSL_get_ciphers(s); - - if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) - { - prio=sk_SSL_CIPHER_dup(cl); - if (prio == NULL) goto mem_err; - allow = cs; - } - else - { - prio = cs; - allow = cl; - } - for (z=0; z<sk_SSL_CIPHER_num(prio); z++) - { - if (sk_SSL_CIPHER_find(allow,sk_SSL_CIPHER_value(prio,z)) < 0) - { - (void)sk_SSL_CIPHER_delete(prio,z); - z--; - } - } - if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) - { - sk_SSL_CIPHER_free(s->session->ciphers); - s->session->ciphers = prio; - } - /* s->session->ciphers should now have a list of - * ciphers that are on both the client and server. - * This list is ordered by the order the client sent - * the ciphers or in the order of the server's preference - * if SSL_OP_CIPHER_SERVER_PREFERENCE was set. - */ - } - p+=s->s2->tmp.cipher_spec_length; - /* done cipher selection */ - - /* session id extracted already */ - p+=s->s2->tmp.session_id_length; - - /* challenge */ - if (s->s2->challenge_length > sizeof s->s2->challenge) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_HELLO, ERR_R_INTERNAL_ERROR); - return -1; - } - memcpy(s->s2->challenge,p,(unsigned int)s->s2->challenge_length); - return(1); -mem_err: - SSLerr(SSL_F_GET_CLIENT_HELLO,ERR_R_MALLOC_FAILURE); - return(0); - } +{ + int i, n; + unsigned long len; + unsigned char *p; + STACK_OF(SSL_CIPHER) *cs; /* a stack of SSL_CIPHERS */ + STACK_OF(SSL_CIPHER) *cl; /* the ones we want to use */ + STACK_OF(SSL_CIPHER) *prio, *allow; + int z; + + /* + * This is a bit of a hack to check for the correct packet type the first + * time round. + */ + if (s->state == SSL2_ST_GET_CLIENT_HELLO_A) { + s->first_packet = 1; + s->state = SSL2_ST_GET_CLIENT_HELLO_B; + } + + p = (unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_GET_CLIENT_HELLO_B) { + i = ssl2_read(s, (char *)&(p[s->init_num]), 9 - s->init_num); + if (i < (9 - s->init_num)) + return (ssl2_part_read(s, SSL_F_GET_CLIENT_HELLO, i)); + s->init_num = 9; + + if (*(p++) != SSL2_MT_CLIENT_HELLO) { + if (p[-1] != SSL2_MT_ERROR) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO, SSL_R_READ_WRONG_PACKET_TYPE); + } else + SSLerr(SSL_F_GET_CLIENT_HELLO, SSL_R_PEER_ERROR); + return (-1); + } + n2s(p, i); + if (i < s->version) + s->version = i; + n2s(p, i); + s->s2->tmp.cipher_spec_length = i; + n2s(p, i); + s->s2->tmp.session_id_length = i; + n2s(p, i); + s->s2->challenge_length = i; + if ((i < SSL2_MIN_CHALLENGE_LENGTH) || + (i > SSL2_MAX_CHALLENGE_LENGTH)) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO, SSL_R_INVALID_CHALLENGE_LENGTH); + return (-1); + } + s->state = SSL2_ST_GET_CLIENT_HELLO_C; + } + + /* SSL2_ST_GET_CLIENT_HELLO_C */ + p = (unsigned char *)s->init_buf->data; + len = + 9 + (unsigned long)s->s2->tmp.cipher_spec_length + + (unsigned long)s->s2->challenge_length + + (unsigned long)s->s2->tmp.session_id_length; + if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO, SSL_R_MESSAGE_TOO_LONG); + return -1; + } + n = (int)len - s->init_num; + i = ssl2_read(s, (char *)&(p[s->init_num]), n); + if (i != n) + return (ssl2_part_read(s, SSL_F_GET_CLIENT_HELLO, i)); + if (s->msg_callback) { + /* CLIENT-HELLO */ + s->msg_callback(0, s->version, 0, p, (size_t)len, s, + s->msg_callback_arg); + } + p += 9; + + /* + * get session-id before cipher stuff so we can get out session structure + * if it is cached + */ + /* session-id */ + if ((s->s2->tmp.session_id_length != 0) && + (s->s2->tmp.session_id_length != SSL2_SSL_SESSION_ID_LENGTH)) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO, SSL_R_BAD_SSL_SESSION_ID_LENGTH); + return (-1); + } + + if (s->s2->tmp.session_id_length == 0) { + if (!ssl_get_new_session(s, 1)) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + return (-1); + } + } else { + i = ssl_get_prev_session(s, &(p[s->s2->tmp.cipher_spec_length]), + s->s2->tmp.session_id_length, NULL); + if (i == 1) { /* previous session */ + s->hit = 1; + } else if (i == -1) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + return (-1); + } else { + if (s->cert == NULL) { + ssl2_return_error(s, SSL2_PE_NO_CERTIFICATE); + SSLerr(SSL_F_GET_CLIENT_HELLO, SSL_R_NO_CERTIFICATE_SET); + return (-1); + } + + if (!ssl_get_new_session(s, 1)) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + return (-1); + } + } + } + + if (!s->hit) { + cs = ssl_bytes_to_cipher_list(s, p, s->s2->tmp.cipher_spec_length, + &s->session->ciphers); + if (cs == NULL) + goto mem_err; + + cl = SSL_get_ciphers(s); + + if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) { + prio = sk_SSL_CIPHER_dup(cl); + if (prio == NULL) + goto mem_err; + allow = cs; + } else { + prio = cs; + allow = cl; + } + for (z = 0; z < sk_SSL_CIPHER_num(prio); z++) { + if (sk_SSL_CIPHER_find(allow, sk_SSL_CIPHER_value(prio, z)) < 0) { + (void)sk_SSL_CIPHER_delete(prio, z); + z--; + } + } + if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE) { + sk_SSL_CIPHER_free(s->session->ciphers); + s->session->ciphers = prio; + } + /* + * s->session->ciphers should now have a list of ciphers that are on + * both the client and server. This list is ordered by the order the + * client sent the ciphers or in the order of the server's preference + * if SSL_OP_CIPHER_SERVER_PREFERENCE was set. + */ + } + p += s->s2->tmp.cipher_spec_length; + /* done cipher selection */ + + /* session id extracted already */ + p += s->s2->tmp.session_id_length; + + /* challenge */ + if (s->s2->challenge_length > sizeof s->s2->challenge) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_HELLO, ERR_R_INTERNAL_ERROR); + return -1; + } + memcpy(s->s2->challenge, p, (unsigned int)s->s2->challenge_length); + return (1); + mem_err: + SSLerr(SSL_F_GET_CLIENT_HELLO, ERR_R_MALLOC_FAILURE); + return (0); +} static int server_hello(SSL *s) - { - unsigned char *p,*d; - int n,hit; - - p=(unsigned char *)s->init_buf->data; - if (s->state == SSL2_ST_SEND_SERVER_HELLO_A) - { - d=p+11; - *(p++)=SSL2_MT_SERVER_HELLO; /* type */ - hit=s->hit; - *(p++)=(unsigned char)hit; -#if 1 - if (!hit) - { - if (s->session->sess_cert != NULL) - /* This can't really happen because get_client_hello - * has called ssl_get_new_session, which does not set - * sess_cert. */ - ssl_sess_cert_free(s->session->sess_cert); - s->session->sess_cert = ssl_sess_cert_new(); - if (s->session->sess_cert == NULL) - { - SSLerr(SSL_F_SERVER_HELLO, ERR_R_MALLOC_FAILURE); - return(-1); - } - } - /* If 'hit' is set, then s->sess_cert may be non-NULL or NULL, - * depending on whether it survived in the internal cache - * or was retrieved from an external cache. - * If it is NULL, we cannot put any useful data in it anyway, - * so we don't touch it. - */ - -#else /* That's what used to be done when cert_st and sess_cert_st were - * the same. */ - if (!hit) - { /* else add cert to session */ - CRYPTO_add(&s->cert->references,1,CRYPTO_LOCK_SSL_CERT); - if (s->session->sess_cert != NULL) - ssl_cert_free(s->session->sess_cert); - s->session->sess_cert=s->cert; - } - else /* We have a session id-cache hit, if the - * session-id has no certificate listed against - * the 'cert' structure, grab the 'old' one - * listed against the SSL connection */ - { - if (s->session->sess_cert == NULL) - { - CRYPTO_add(&s->cert->references,1, - CRYPTO_LOCK_SSL_CERT); - s->session->sess_cert=s->cert; - } - } -#endif +{ + unsigned char *p, *d; + int n, hit; + + p = (unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_SEND_SERVER_HELLO_A) { + d = p + 11; + *(p++) = SSL2_MT_SERVER_HELLO; /* type */ + hit = s->hit; + *(p++) = (unsigned char)hit; +# if 1 + if (!hit) { + if (s->session->sess_cert != NULL) + /* + * This can't really happen because get_client_hello has + * called ssl_get_new_session, which does not set sess_cert. + */ + ssl_sess_cert_free(s->session->sess_cert); + s->session->sess_cert = ssl_sess_cert_new(); + if (s->session->sess_cert == NULL) { + SSLerr(SSL_F_SERVER_HELLO, ERR_R_MALLOC_FAILURE); + return (-1); + } + } + /* + * If 'hit' is set, then s->sess_cert may be non-NULL or NULL, + * depending on whether it survived in the internal cache or was + * retrieved from an external cache. If it is NULL, we cannot put any + * useful data in it anyway, so we don't touch it. + */ + +# else /* That's what used to be done when cert_st + * and sess_cert_st were * the same. */ + if (!hit) { /* else add cert to session */ + CRYPTO_add(&s->cert->references, 1, CRYPTO_LOCK_SSL_CERT); + if (s->session->sess_cert != NULL) + ssl_cert_free(s->session->sess_cert); + s->session->sess_cert = s->cert; + } else { /* We have a session id-cache hit, if the * + * session-id has no certificate listed + * against * the 'cert' structure, grab the + * 'old' one * listed against the SSL + * connection */ + if (s->session->sess_cert == NULL) { + CRYPTO_add(&s->cert->references, 1, CRYPTO_LOCK_SSL_CERT); + s->session->sess_cert = s->cert; + } + } +# endif - if (s->cert == NULL) - { - ssl2_return_error(s,SSL2_PE_NO_CERTIFICATE); - SSLerr(SSL_F_SERVER_HELLO,SSL_R_NO_CERTIFICATE_SPECIFIED); - return(-1); - } - - if (hit) - { - *(p++)=0; /* no certificate type */ - s2n(s->version,p); /* version */ - s2n(0,p); /* cert len */ - s2n(0,p); /* ciphers len */ - } - else - { - /* EAY EAY */ - /* put certificate type */ - *(p++)=SSL2_CT_X509_CERTIFICATE; - s2n(s->version,p); /* version */ - n=i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,NULL); - s2n(n,p); /* certificate length */ - i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,&d); - n=0; - - /* lets send out the ciphers we like in the - * prefered order */ - n=ssl_cipher_list_to_bytes(s,s->session->ciphers,d,0); - d+=n; - s2n(n,p); /* add cipher length */ - } - - /* make and send conn_id */ - s2n(SSL2_CONNECTION_ID_LENGTH,p); /* add conn_id length */ - s->s2->conn_id_length=SSL2_CONNECTION_ID_LENGTH; - if (RAND_pseudo_bytes(s->s2->conn_id,(int)s->s2->conn_id_length) <= 0) - return -1; - memcpy(d,s->s2->conn_id,SSL2_CONNECTION_ID_LENGTH); - d+=SSL2_CONNECTION_ID_LENGTH; - - s->state=SSL2_ST_SEND_SERVER_HELLO_B; - s->init_num=d-(unsigned char *)s->init_buf->data; - s->init_off=0; - } - /* SSL2_ST_SEND_SERVER_HELLO_B */ - /* If we are using TCP/IP, the performance is bad if we do 2 - * writes without a read between them. This occurs when - * Session-id reuse is used, so I will put in a buffering module - */ - if (s->hit) - { - if (!ssl_init_wbio_buffer(s,1)) return(-1); - } - - return(ssl2_do_write(s)); - } + if (s->cert == NULL) { + ssl2_return_error(s, SSL2_PE_NO_CERTIFICATE); + SSLerr(SSL_F_SERVER_HELLO, SSL_R_NO_CERTIFICATE_SPECIFIED); + return (-1); + } + + if (hit) { + *(p++) = 0; /* no certificate type */ + s2n(s->version, p); /* version */ + s2n(0, p); /* cert len */ + s2n(0, p); /* ciphers len */ + } else { + /* EAY EAY */ + /* put certificate type */ + *(p++) = SSL2_CT_X509_CERTIFICATE; + s2n(s->version, p); /* version */ + n = i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509, NULL); + s2n(n, p); /* certificate length */ + i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509, &d); + n = 0; + + /* + * lets send out the ciphers we like in the prefered order + */ + n = ssl_cipher_list_to_bytes(s, s->session->ciphers, d, 0); + d += n; + s2n(n, p); /* add cipher length */ + } + + /* make and send conn_id */ + s2n(SSL2_CONNECTION_ID_LENGTH, p); /* add conn_id length */ + s->s2->conn_id_length = SSL2_CONNECTION_ID_LENGTH; + if (RAND_pseudo_bytes(s->s2->conn_id, (int)s->s2->conn_id_length) <= + 0) + return -1; + memcpy(d, s->s2->conn_id, SSL2_CONNECTION_ID_LENGTH); + d += SSL2_CONNECTION_ID_LENGTH; + + s->state = SSL2_ST_SEND_SERVER_HELLO_B; + s->init_num = d - (unsigned char *)s->init_buf->data; + s->init_off = 0; + } + /* SSL2_ST_SEND_SERVER_HELLO_B */ + /* + * If we are using TCP/IP, the performance is bad if we do 2 writes + * without a read between them. This occurs when Session-id reuse is + * used, so I will put in a buffering module + */ + if (s->hit) { + if (!ssl_init_wbio_buffer(s, 1)) + return (-1); + } + + return (ssl2_do_write(s)); +} static int get_client_finished(SSL *s) - { - unsigned char *p; - int i, n; - unsigned long len; - - p=(unsigned char *)s->init_buf->data; - if (s->state == SSL2_ST_GET_CLIENT_FINISHED_A) - { - i=ssl2_read(s,(char *)&(p[s->init_num]),1-s->init_num); - if (i < 1-s->init_num) - return(ssl2_part_read(s,SSL_F_GET_CLIENT_FINISHED,i)); - s->init_num += i; - - if (*p != SSL2_MT_CLIENT_FINISHED) - { - if (*p != SSL2_MT_ERROR) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_FINISHED,SSL_R_READ_WRONG_PACKET_TYPE); - } - else - { - SSLerr(SSL_F_GET_CLIENT_FINISHED,SSL_R_PEER_ERROR); - /* try to read the error message */ - i=ssl2_read(s,(char *)&(p[s->init_num]),3-s->init_num); - return ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i); - } - return(-1); - } - s->state=SSL2_ST_GET_CLIENT_FINISHED_B; - } - - /* SSL2_ST_GET_CLIENT_FINISHED_B */ - if (s->s2->conn_id_length > sizeof s->s2->conn_id) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_FINISHED, ERR_R_INTERNAL_ERROR); - return -1; - } - len = 1 + (unsigned long)s->s2->conn_id_length; - n = (int)len - s->init_num; - i = ssl2_read(s,(char *)&(p[s->init_num]),n); - if (i < n) - { - return(ssl2_part_read(s,SSL_F_GET_CLIENT_FINISHED,i)); - } - if (s->msg_callback) - s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); /* CLIENT-FINISHED */ - p += 1; - if (memcmp(p,s->s2->conn_id,s->s2->conn_id_length) != 0) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_GET_CLIENT_FINISHED,SSL_R_CONNECTION_ID_IS_DIFFERENT); - return(-1); - } - return(1); - } +{ + unsigned char *p; + int i, n; + unsigned long len; + + p = (unsigned char *)s->init_buf->data; + if (s->state == SSL2_ST_GET_CLIENT_FINISHED_A) { + i = ssl2_read(s, (char *)&(p[s->init_num]), 1 - s->init_num); + if (i < 1 - s->init_num) + return (ssl2_part_read(s, SSL_F_GET_CLIENT_FINISHED, i)); + s->init_num += i; + + if (*p != SSL2_MT_CLIENT_FINISHED) { + if (*p != SSL2_MT_ERROR) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_FINISHED, + SSL_R_READ_WRONG_PACKET_TYPE); + } else { + SSLerr(SSL_F_GET_CLIENT_FINISHED, SSL_R_PEER_ERROR); + /* try to read the error message */ + i = ssl2_read(s, (char *)&(p[s->init_num]), 3 - s->init_num); + return ssl2_part_read(s, SSL_F_GET_SERVER_VERIFY, i); + } + return (-1); + } + s->state = SSL2_ST_GET_CLIENT_FINISHED_B; + } + + /* SSL2_ST_GET_CLIENT_FINISHED_B */ + if (s->s2->conn_id_length > sizeof s->s2->conn_id) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_FINISHED, ERR_R_INTERNAL_ERROR); + return -1; + } + len = 1 + (unsigned long)s->s2->conn_id_length; + n = (int)len - s->init_num; + i = ssl2_read(s, (char *)&(p[s->init_num]), n); + if (i < n) { + return (ssl2_part_read(s, SSL_F_GET_CLIENT_FINISHED, i)); + } + if (s->msg_callback) { + /* CLIENT-FINISHED */ + s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); + } + p += 1; + if (memcmp(p, s->s2->conn_id, s->s2->conn_id_length) != 0) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_GET_CLIENT_FINISHED, SSL_R_CONNECTION_ID_IS_DIFFERENT); + return (-1); + } + return (1); +} static int server_verify(SSL *s) - { - unsigned char *p; - - if (s->state == SSL2_ST_SEND_SERVER_VERIFY_A) - { - p=(unsigned char *)s->init_buf->data; - *(p++)=SSL2_MT_SERVER_VERIFY; - if (s->s2->challenge_length > sizeof s->s2->challenge) - { - SSLerr(SSL_F_SERVER_VERIFY, ERR_R_INTERNAL_ERROR); - return -1; - } - memcpy(p,s->s2->challenge,(unsigned int)s->s2->challenge_length); - /* p+=s->s2->challenge_length; */ - - s->state=SSL2_ST_SEND_SERVER_VERIFY_B; - s->init_num=s->s2->challenge_length+1; - s->init_off=0; - } - return(ssl2_do_write(s)); - } +{ + unsigned char *p; + + if (s->state == SSL2_ST_SEND_SERVER_VERIFY_A) { + p = (unsigned char *)s->init_buf->data; + *(p++) = SSL2_MT_SERVER_VERIFY; + if (s->s2->challenge_length > sizeof s->s2->challenge) { + SSLerr(SSL_F_SERVER_VERIFY, ERR_R_INTERNAL_ERROR); + return -1; + } + memcpy(p, s->s2->challenge, (unsigned int)s->s2->challenge_length); + /* p+=s->s2->challenge_length; */ + + s->state = SSL2_ST_SEND_SERVER_VERIFY_B; + s->init_num = s->s2->challenge_length + 1; + s->init_off = 0; + } + return (ssl2_do_write(s)); +} static int server_finish(SSL *s) - { - unsigned char *p; - - if (s->state == SSL2_ST_SEND_SERVER_FINISHED_A) - { - p=(unsigned char *)s->init_buf->data; - *(p++)=SSL2_MT_SERVER_FINISHED; - - if (s->session->session_id_length > sizeof s->session->session_id) - { - SSLerr(SSL_F_SERVER_FINISH, ERR_R_INTERNAL_ERROR); - return -1; - } - memcpy(p,s->session->session_id, (unsigned int)s->session->session_id_length); - /* p+=s->session->session_id_length; */ - - s->state=SSL2_ST_SEND_SERVER_FINISHED_B; - s->init_num=s->session->session_id_length+1; - s->init_off=0; - } - - /* SSL2_ST_SEND_SERVER_FINISHED_B */ - return(ssl2_do_write(s)); - } +{ + unsigned char *p; + + if (s->state == SSL2_ST_SEND_SERVER_FINISHED_A) { + p = (unsigned char *)s->init_buf->data; + *(p++) = SSL2_MT_SERVER_FINISHED; + + if (s->session->session_id_length > sizeof s->session->session_id) { + SSLerr(SSL_F_SERVER_FINISH, ERR_R_INTERNAL_ERROR); + return -1; + } + memcpy(p, s->session->session_id, + (unsigned int)s->session->session_id_length); + /* p+=s->session->session_id_length; */ + + s->state = SSL2_ST_SEND_SERVER_FINISHED_B; + s->init_num = s->session->session_id_length + 1; + s->init_off = 0; + } + + /* SSL2_ST_SEND_SERVER_FINISHED_B */ + return (ssl2_do_write(s)); +} /* send the request and check the response */ static int request_certificate(SSL *s) - { - const unsigned char *cp; - unsigned char *p,*p2,*buf2; - unsigned char *ccd; - int i,j,ctype,ret= -1; - unsigned long len; - X509 *x509=NULL; - STACK_OF(X509) *sk=NULL; - - ccd=s->s2->tmp.ccl; - if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_A) - { - p=(unsigned char *)s->init_buf->data; - *(p++)=SSL2_MT_REQUEST_CERTIFICATE; - *(p++)=SSL2_AT_MD5_WITH_RSA_ENCRYPTION; - if (RAND_pseudo_bytes(ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH) <= 0) - return -1; - memcpy(p,ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH); - - s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_B; - s->init_num=SSL2_MIN_CERT_CHALLENGE_LENGTH+2; - s->init_off=0; - } - - if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_B) - { - i=ssl2_do_write(s); - if (i <= 0) - { - ret=i; - goto end; - } - - s->init_num=0; - s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_C; - } - - if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_C) - { - p=(unsigned char *)s->init_buf->data; - i=ssl2_read(s,(char *)&(p[s->init_num]),6-s->init_num); /* try to read 6 octets ... */ - if (i < 3-s->init_num) /* ... but don't call ssl2_part_read now if we got at least 3 - * (probably NO-CERTIFICATE-ERROR) */ - { - ret=ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE,i); - goto end; - } - s->init_num += i; - - if ((s->init_num >= 3) && (p[0] == SSL2_MT_ERROR)) - { - n2s(p,i); - if (i != SSL2_PE_NO_CERTIFICATE) - { - /* not the error message we expected -- let ssl2_part_read handle it */ - s->init_num -= 3; - ret = ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE, 3); - goto end; - } - - if (s->msg_callback) - s->msg_callback(0, s->version, 0, p, 3, s, s->msg_callback_arg); /* ERROR */ - - /* this is the one place where we can recover from an SSL 2.0 error */ - - if (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT) - { - ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE); - SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE); - goto end; - } - ret=1; - goto end; - } - if ((*(p++) != SSL2_MT_CLIENT_CERTIFICATE) || (s->init_num < 6)) - { - ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR); - SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_SHORT_READ); - goto end; - } - if (s->init_num != 6) - { - SSLerr(SSL_F_REQUEST_CERTIFICATE, ERR_R_INTERNAL_ERROR); - goto end; - } - - /* ok we have a response */ - /* certificate type, there is only one right now. */ - ctype= *(p++); - if (ctype != SSL2_AT_MD5_WITH_RSA_ENCRYPTION) - { - ssl2_return_error(s,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE); - SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_BAD_RESPONSE_ARGUMENT); - goto end; - } - n2s(p,i); s->s2->tmp.clen=i; - n2s(p,i); s->s2->tmp.rlen=i; - s->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_D; - } - - /* SSL2_ST_SEND_REQUEST_CERTIFICATE_D */ - p=(unsigned char *)s->init_buf->data; - len = 6 + (unsigned long)s->s2->tmp.clen + (unsigned long)s->s2->tmp.rlen; - if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) - { - SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_MESSAGE_TOO_LONG); - goto end; - } - j = (int)len - s->init_num; - i = ssl2_read(s,(char *)&(p[s->init_num]),j); - if (i < j) - { - ret=ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE,i); - goto end; - } - if (s->msg_callback) - s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); /* CLIENT-CERTIFICATE */ - p += 6; - - cp = p; - x509=(X509 *)d2i_X509(NULL,&cp,(long)s->s2->tmp.clen); - if (x509 == NULL) - { - SSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_X509_LIB); - goto msg_end; - } - - if (((sk=sk_X509_new_null()) == NULL) || (!sk_X509_push(sk,x509))) - { - SSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_MALLOC_FAILURE); - goto msg_end; - } - - i=ssl_verify_cert_chain(s,sk); - - if (i > 0) /* we like the packet, now check the chksum */ - { - EVP_MD_CTX ctx; - EVP_PKEY *pkey=NULL; - - EVP_MD_CTX_init(&ctx); - if (!EVP_VerifyInit_ex(&ctx,s->ctx->rsa_md5, NULL) - || !EVP_VerifyUpdate(&ctx,s->s2->key_material, - s->s2->key_material_length) - || !EVP_VerifyUpdate(&ctx,ccd, - SSL2_MIN_CERT_CHALLENGE_LENGTH)) - goto msg_end; - - i=i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,NULL); - buf2=OPENSSL_malloc((unsigned int)i); - if (buf2 == NULL) - { - SSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_MALLOC_FAILURE); - goto msg_end; - } - p2=buf2; - i=i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509,&p2); - if (!EVP_VerifyUpdate(&ctx,buf2,(unsigned int)i)) - { - OPENSSL_free(buf2); - goto msg_end; - } - OPENSSL_free(buf2); - - pkey=X509_get_pubkey(x509); - if (pkey == NULL) goto end; - i=EVP_VerifyFinal(&ctx,cp,s->s2->tmp.rlen,pkey); - EVP_PKEY_free(pkey); - EVP_MD_CTX_cleanup(&ctx); - - if (i > 0) - { - if (s->session->peer != NULL) - X509_free(s->session->peer); - s->session->peer=x509; - CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509); - s->session->verify_result = s->verify_result; - ret=1; - goto end; - } - else - { - SSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_BAD_CHECKSUM); - goto msg_end; - } - } - else - { -msg_end: - ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE); - } -end: - sk_X509_free(sk); - X509_free(x509); - return(ret); - } +{ + const unsigned char *cp; + unsigned char *p, *p2, *buf2; + unsigned char *ccd; + int i, j, ctype, ret = -1; + unsigned long len; + X509 *x509 = NULL; + STACK_OF(X509) *sk = NULL; + + ccd = s->s2->tmp.ccl; + if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_A) { + p = (unsigned char *)s->init_buf->data; + *(p++) = SSL2_MT_REQUEST_CERTIFICATE; + *(p++) = SSL2_AT_MD5_WITH_RSA_ENCRYPTION; + if (RAND_pseudo_bytes(ccd, SSL2_MIN_CERT_CHALLENGE_LENGTH) <= 0) + return -1; + memcpy(p, ccd, SSL2_MIN_CERT_CHALLENGE_LENGTH); + + s->state = SSL2_ST_SEND_REQUEST_CERTIFICATE_B; + s->init_num = SSL2_MIN_CERT_CHALLENGE_LENGTH + 2; + s->init_off = 0; + } + + if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_B) { + i = ssl2_do_write(s); + if (i <= 0) { + ret = i; + goto end; + } + + s->init_num = 0; + s->state = SSL2_ST_SEND_REQUEST_CERTIFICATE_C; + } + + if (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_C) { + p = (unsigned char *)s->init_buf->data; + /* try to read 6 octets ... */ + i = ssl2_read(s, (char *)&(p[s->init_num]), 6 - s->init_num); + /* + * ... but don't call ssl2_part_read now if we got at least 3 + * (probably NO-CERTIFICATE-ERROR) + */ + if (i < 3 - s->init_num) { + ret = ssl2_part_read(s, SSL_F_REQUEST_CERTIFICATE, i); + goto end; + } + s->init_num += i; + + if ((s->init_num >= 3) && (p[0] == SSL2_MT_ERROR)) { + n2s(p, i); + if (i != SSL2_PE_NO_CERTIFICATE) { + /* + * not the error message we expected -- let ssl2_part_read + * handle it + */ + s->init_num -= 3; + ret = ssl2_part_read(s, SSL_F_REQUEST_CERTIFICATE, 3); + goto end; + } + + if (s->msg_callback) { + /* ERROR */ + s->msg_callback(0, s->version, 0, p, 3, s, + s->msg_callback_arg); + } + + /* + * this is the one place where we can recover from an SSL 2.0 + * error + */ + + if (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT) { + ssl2_return_error(s, SSL2_PE_BAD_CERTIFICATE); + SSLerr(SSL_F_REQUEST_CERTIFICATE, + SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE); + goto end; + } + ret = 1; + goto end; + } + if ((*(p++) != SSL2_MT_CLIENT_CERTIFICATE) || (s->init_num < 6)) { + ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR); + SSLerr(SSL_F_REQUEST_CERTIFICATE, SSL_R_SHORT_READ); + goto end; + } + if (s->init_num != 6) { + SSLerr(SSL_F_REQUEST_CERTIFICATE, ERR_R_INTERNAL_ERROR); + goto end; + } + + /* ok we have a response */ + /* certificate type, there is only one right now. */ + ctype = *(p++); + if (ctype != SSL2_AT_MD5_WITH_RSA_ENCRYPTION) { + ssl2_return_error(s, SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE); + SSLerr(SSL_F_REQUEST_CERTIFICATE, SSL_R_BAD_RESPONSE_ARGUMENT); + goto end; + } + n2s(p, i); + s->s2->tmp.clen = i; + n2s(p, i); + s->s2->tmp.rlen = i; + s->state = SSL2_ST_SEND_REQUEST_CERTIFICATE_D; + } + + /* SSL2_ST_SEND_REQUEST_CERTIFICATE_D */ + p = (unsigned char *)s->init_buf->data; + len = 6 + (unsigned long)s->s2->tmp.clen + (unsigned long)s->s2->tmp.rlen; + if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER) { + SSLerr(SSL_F_REQUEST_CERTIFICATE, SSL_R_MESSAGE_TOO_LONG); + goto end; + } + j = (int)len - s->init_num; + i = ssl2_read(s, (char *)&(p[s->init_num]), j); + if (i < j) { + ret = ssl2_part_read(s, SSL_F_REQUEST_CERTIFICATE, i); + goto end; + } + if (s->msg_callback) { + /* CLIENT-CERTIFICATE */ + s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); + } + p += 6; + + cp = p; + x509 = (X509 *)d2i_X509(NULL, &cp, (long)s->s2->tmp.clen); + if (x509 == NULL) { + SSLerr(SSL_F_REQUEST_CERTIFICATE, ERR_R_X509_LIB); + goto msg_end; + } + + if (((sk = sk_X509_new_null()) == NULL) || (!sk_X509_push(sk, x509))) { + SSLerr(SSL_F_REQUEST_CERTIFICATE, ERR_R_MALLOC_FAILURE); + goto msg_end; + } + + i = ssl_verify_cert_chain(s, sk); + + if (i > 0) { /* we like the packet, now check the chksum */ + EVP_MD_CTX ctx; + EVP_PKEY *pkey = NULL; + + EVP_MD_CTX_init(&ctx); + if (!EVP_VerifyInit_ex(&ctx, s->ctx->rsa_md5, NULL) + || !EVP_VerifyUpdate(&ctx, s->s2->key_material, + s->s2->key_material_length) + || !EVP_VerifyUpdate(&ctx, ccd, SSL2_MIN_CERT_CHALLENGE_LENGTH)) + goto msg_end; + + i = i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509, NULL); + buf2 = OPENSSL_malloc((unsigned int)i); + if (buf2 == NULL) { + SSLerr(SSL_F_REQUEST_CERTIFICATE, ERR_R_MALLOC_FAILURE); + goto msg_end; + } + p2 = buf2; + i = i2d_X509(s->cert->pkeys[SSL_PKEY_RSA_ENC].x509, &p2); + if (!EVP_VerifyUpdate(&ctx, buf2, (unsigned int)i)) { + OPENSSL_free(buf2); + goto msg_end; + } + OPENSSL_free(buf2); + + pkey = X509_get_pubkey(x509); + if (pkey == NULL) + goto end; + i = EVP_VerifyFinal(&ctx, cp, s->s2->tmp.rlen, pkey); + EVP_PKEY_free(pkey); + EVP_MD_CTX_cleanup(&ctx); + + if (i > 0) { + if (s->session->peer != NULL) + X509_free(s->session->peer); + s->session->peer = x509; + CRYPTO_add(&x509->references, 1, CRYPTO_LOCK_X509); + s->session->verify_result = s->verify_result; + ret = 1; + goto end; + } else { + SSLerr(SSL_F_REQUEST_CERTIFICATE, SSL_R_BAD_CHECKSUM); + goto msg_end; + } + } else { + msg_end: + ssl2_return_error(s, SSL2_PE_BAD_CERTIFICATE); + } + end: + sk_X509_free(sk); + X509_free(x509); + return (ret); +} static int ssl_rsa_private_decrypt(CERT *c, int len, unsigned char *from, - unsigned char *to, int padding) - { - RSA *rsa; - int i; - - if ((c == NULL) || (c->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL)) - { - SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT,SSL_R_NO_PRIVATEKEY); - return(-1); - } - if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey->type != EVP_PKEY_RSA) - { - SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT,SSL_R_PUBLIC_KEY_IS_NOT_RSA); - return(-1); - } - rsa=c->pkeys[SSL_PKEY_RSA_ENC].privatekey->pkey.rsa; - - /* we have the public key */ - i=RSA_private_decrypt(len,from,to,rsa,padding); - if (i < 0) - SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT,ERR_R_RSA_LIB); - return(i); - } -#else /* !OPENSSL_NO_SSL2 */ + unsigned char *to, int padding) +{ + RSA *rsa; + int i; + + if ((c == NULL) || (c->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL)) { + SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT, SSL_R_NO_PRIVATEKEY); + return (-1); + } + if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey->type != EVP_PKEY_RSA) { + SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT, SSL_R_PUBLIC_KEY_IS_NOT_RSA); + return (-1); + } + rsa = c->pkeys[SSL_PKEY_RSA_ENC].privatekey->pkey.rsa; + + /* we have the public key */ + i = RSA_private_decrypt(len, from, to, rsa, padding); + if (i < 0) + SSLerr(SSL_F_SSL_RSA_PRIVATE_DECRYPT, ERR_R_RSA_LIB); + return (i); +} +#else /* !OPENSSL_NO_SSL2 */ # if PEDANTIC -static void *dummy=&dummy; +static void *dummy = &dummy; # endif #endif |