From 5fc5d37330d3535a0f421632694d1e7918fc22d7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Tue, 8 Apr 2014 11:38:09 +0200 Subject: Compiles correctly: app/build-native + gradle. --- app/openssl/ssl/s23_srvr.c | 599 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 599 insertions(+) create mode 100644 app/openssl/ssl/s23_srvr.c (limited to 'app/openssl/ssl/s23_srvr.c') diff --git a/app/openssl/ssl/s23_srvr.c b/app/openssl/ssl/s23_srvr.c new file mode 100644 index 00000000..e22879c8 --- /dev/null +++ b/app/openssl/ssl/s23_srvr.c @@ -0,0 +1,599 @@ +/* ssl/s23_srvr.c */ +/* Copyright (C) 1995-1998 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.] + */ +/* ==================================================================== + * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. + * + * 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 above 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 acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED 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 OpenSSL PROJECT OR + * ITS 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. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include +#include "ssl_locl.h" +#include +#include +#include +#include + +static const SSL_METHOD *ssl23_get_server_method(int ver); +int ssl23_get_client_hello(SSL *s); +static const SSL_METHOD *ssl23_get_server_method(int ver) + { +#ifndef OPENSSL_NO_SSL2 + if (ver == SSL2_VERSION) + return(SSLv2_server_method()); +#endif + if (ver == SSL3_VERSION) + return(SSLv3_server_method()); + else if (ver == TLS1_VERSION) + return(TLSv1_server_method()); + else + return(NULL); + } + +IMPLEMENT_ssl23_meth_func(SSLv23_server_method, + ssl23_accept, + ssl_undefined_function, + ssl23_get_server_method) + +int ssl23_accept(SSL *s) + { + BUF_MEM *buf; + unsigned long Time=(unsigned long)time(NULL); + void (*cb)(const SSL *ssl,int type,int val)=NULL; + int ret= -1; + int new_state,state; + + RAND_add(&Time,sizeof(Time),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; + + s->in_handshake++; + if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); + + 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=SSL3_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,SSL3_RT_MAX_PLAIN_LENGTH)) + { + ret= -1; + goto end; + } + s->init_buf=buf; + } + + ssl3_init_finished_mac(s); + + s->state=SSL23_ST_SR_CLNT_HELLO_A; + s->ctx->stats.sess_accept++; + s->init_num=0; + break; + + case SSL23_ST_SR_CLNT_HELLO_A: + case SSL23_ST_SR_CLNT_HELLO_B: + + s->shutdown=0; + ret=ssl23_get_client_hello(s); + if (ret >= 0) cb=NULL; + goto end; + /* break; */ + + default: + SSLerr(SSL_F_SSL23_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); + } + + +int ssl23_get_client_hello(SSL *s) + { + char buf_space[11]; /* Request this many bytes in initial read. + * We can detect SSL 3.0/TLS 1.0 Client Hellos + * ('type == 3') correctly only when the following + * is in a single record, which is not guaranteed by + * the protocol specification: + * Byte Content + * 0 type \ + * 1/2 version > record header + * 3/4 length / + * 5 msg_type \ + * 6-8 length > Client Hello message + * 9/10 client_version / + */ + char *buf= &(buf_space[0]); + unsigned char *p,*d,*d_len,*dd; + unsigned int i; + unsigned int csl,sil,cl; + int n=0,j; + int type=0; + int v[2]; + + if (s->state == SSL23_ST_SR_CLNT_HELLO_A) + { + /* read the initial header */ + v[0]=v[1]=0; + + if (!ssl3_setup_buffers(s)) goto err; + + n=ssl23_read_bytes(s, sizeof buf_space); + if (n != sizeof buf_space) return(n); /* n == -1 || n == 0 */ + + p=s->packet; + + memcpy(buf,p,n); + + if ((p[0] & 0x80) && (p[2] == SSL2_MT_CLIENT_HELLO)) + { + /* + * SSLv2 header + */ + if ((p[3] == 0x00) && (p[4] == 0x02)) + { + v[0]=p[3]; v[1]=p[4]; + /* SSLv2 */ + if (!(s->options & SSL_OP_NO_SSLv2)) + type=1; + } + else if (p[3] == SSL3_VERSION_MAJOR) + { + v[0]=p[3]; v[1]=p[4]; + /* SSLv3/TLSv1 */ + if (p[4] >= TLS1_VERSION_MINOR) + { + if (!(s->options & SSL_OP_NO_TLSv1)) + { + s->version=TLS1_VERSION; + /* type=2; */ /* done later to survive restarts */ + s->state=SSL23_ST_SR_CLNT_HELLO_B; + } + else if (!(s->options & SSL_OP_NO_SSLv3)) + { + s->version=SSL3_VERSION; + /* type=2; */ + s->state=SSL23_ST_SR_CLNT_HELLO_B; + } + else if (!(s->options & SSL_OP_NO_SSLv2)) + { + type=1; + } + } + else if (!(s->options & SSL_OP_NO_SSLv3)) + { + s->version=SSL3_VERSION; + /* type=2; */ + s->state=SSL23_ST_SR_CLNT_HELLO_B; + } + else if (!(s->options & SSL_OP_NO_SSLv2)) + type=1; + + } + } + else if ((p[0] == SSL3_RT_HANDSHAKE) && + (p[1] == SSL3_VERSION_MAJOR) && + (p[5] == SSL3_MT_CLIENT_HELLO) && + ((p[3] == 0 && p[4] < 5 /* silly record length? */) + || (p[9] >= p[1]))) + { + /* + * SSLv3 or tls1 header + */ + + v[0]=p[1]; /* major version (= SSL3_VERSION_MAJOR) */ + /* We must look at client_version inside the Client Hello message + * to get the correct minor version. + * However if we have only a pathologically small fragment of the + * Client Hello message, this would be difficult, and we'd have + * to read more records to find out. + * No known SSL 3.0 client fragments ClientHello like this, + * so we simply assume TLS 1.0 to avoid protocol version downgrade + * attacks. */ + if (p[3] == 0 && p[4] < 6) + { +#if 0 + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_RECORD_TOO_SMALL); + goto err; +#else + v[1] = TLS1_VERSION_MINOR; +#endif + } + /* if major version number > 3 set minor to a value + * which will use the highest version 3 we support. + * If TLS 2.0 ever appears we will need to revise + * this.... + */ + else if (p[9] > SSL3_VERSION_MAJOR) + v[1]=0xff; + else + v[1]=p[10]; /* minor version according to client_version */ + if (v[1] >= TLS1_VERSION_MINOR) + { + if (!(s->options & SSL_OP_NO_TLSv1)) + { + s->version=TLS1_VERSION; + type=3; + } + else if (!(s->options & SSL_OP_NO_SSLv3)) + { + s->version=SSL3_VERSION; + type=3; + } + } + else + { + /* client requests SSL 3.0 */ + if (!(s->options & SSL_OP_NO_SSLv3)) + { + s->version=SSL3_VERSION; + type=3; + } + else if (!(s->options & SSL_OP_NO_TLSv1)) + { + /* we won't be able to use TLS of course, + * but this will send an appropriate alert */ + s->version=TLS1_VERSION; + type=3; + } + } + } + else if ((strncmp("GET ", (char *)p,4) == 0) || + (strncmp("POST ",(char *)p,5) == 0) || + (strncmp("HEAD ",(char *)p,5) == 0) || + (strncmp("PUT ", (char *)p,4) == 0)) + { + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_HTTP_REQUEST); + goto err; + } + else if (strncmp("CONNECT",(char *)p,7) == 0) + { + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_HTTPS_PROXY_REQUEST); + goto err; + } + } + + if (s->state == SSL23_ST_SR_CLNT_HELLO_B) + { + /* we have SSLv3/TLSv1 in an SSLv2 header + * (other cases skip this state) */ + + type=2; + p=s->packet; + v[0] = p[3]; /* == SSL3_VERSION_MAJOR */ + v[1] = p[4]; + +/* The SSL2 protocol allows n to be larger, just pick + * a reasonable buffer size. */ +#if SSL3_RT_DEFAULT_PACKET_SIZE < 1024*4 - SSL3_RT_DEFAULT_WRITE_OVERHEAD +#error "SSL3_RT_DEFAULT_PACKET_SIZE is too small." +#endif + n=((p[0]&0x7f)<<8)|p[1]; + if (n > SSL3_RT_DEFAULT_PACKET_SIZE - 2) + { + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_RECORD_TOO_LARGE); + goto err; + } + + j=ssl23_read_bytes(s,n+2); + if (j <= 0) return(j); + + ssl3_finish_mac(s, s->packet+2, s->packet_length-2); + if (s->msg_callback) + s->msg_callback(0, SSL2_VERSION, 0, s->packet+2, s->packet_length-2, s, s->msg_callback_arg); /* CLIENT-HELLO */ + + p=s->packet; + p+=5; + n2s(p,csl); + n2s(p,sil); + n2s(p,cl); + d=(unsigned char *)s->init_buf->data; + if ((csl+sil+cl+11) != s->packet_length) /* We can't have TLS extensions in SSL 2.0 format + * Client Hello, can we? Error condition should be + * '>' otherweise */ + { + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_RECORD_LENGTH_MISMATCH); + goto err; + } + + /* record header: msg_type ... */ + *(d++) = SSL3_MT_CLIENT_HELLO; + /* ... and length (actual value will be written later) */ + d_len = d; + d += 3; + + /* client_version */ + *(d++) = SSL3_VERSION_MAJOR; /* == v[0] */ + *(d++) = v[1]; + + /* lets populate the random area */ + /* get the challenge_length */ + i=(cl > SSL3_RANDOM_SIZE)?SSL3_RANDOM_SIZE:cl; + memset(d,0,SSL3_RANDOM_SIZE); + memcpy(&(d[SSL3_RANDOM_SIZE-i]),&(p[csl+sil]),i); + d+=SSL3_RANDOM_SIZE; + + /* no session-id reuse */ + *(d++)=0; + + /* ciphers */ + j=0; + dd=d; + d+=2; + for (i=0; ipacket+s->packet_length) + { + *(d++)=*(p++); + } +#endif + + i = (d-(unsigned char *)s->init_buf->data) - 4; + l2n3((long)i, d_len); + + /* get the data reused from the init_buf */ + s->s3->tmp.reuse_message=1; + s->s3->tmp.message_type=SSL3_MT_CLIENT_HELLO; + s->s3->tmp.message_size=i; + } + + /* imaginary new state (for program structure): */ + /* s->state = SSL23_SR_CLNT_HELLO_C */ + + if (type == 1) + { +#ifdef OPENSSL_NO_SSL2 + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_UNSUPPORTED_PROTOCOL); + goto err; +#else + /* we are talking sslv2 */ + /* we need to clean up the SSLv3/TLSv1 setup and put in the + * sslv2 stuff. */ + + if (s->s2 == NULL) + { + if (!ssl2_new(s)) + goto err; + } + else + ssl2_clear(s); + + if (s->s3 != NULL) ssl3_free(s); + + if (!BUF_MEM_grow_clean(s->init_buf, + SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)) + { + goto err; + } + + s->state=SSL2_ST_GET_CLIENT_HELLO_A; + if (s->options & SSL_OP_NO_TLSv1 && s->options & SSL_OP_NO_SSLv3) + s->s2->ssl2_rollback=0; + else + /* reject SSL 2.0 session if client supports SSL 3.0 or TLS 1.0 + * (SSL 3.0 draft/RFC 2246, App. E.2) */ + s->s2->ssl2_rollback=1; + + /* setup the n bytes we have read so we get them from + * the sslv2 buffer */ + s->rstate=SSL_ST_READ_HEADER; + s->packet_length=n; + s->packet= &(s->s2->rbuf[0]); + memcpy(s->packet,buf,n); + s->s2->rbuf_left=n; + s->s2->rbuf_offs=0; + + s->method=SSLv2_server_method(); + s->handshake_func=s->method->ssl_accept; +#endif + } + + if ((type == 2) || (type == 3)) + { + /* we have SSLv3/TLSv1 (type 2: SSL2 style, type 3: SSL3/TLS style) */ + + if (!ssl_init_wbio_buffer(s,1)) goto err; + + /* we are in this state */ + s->state=SSL3_ST_SR_CLNT_HELLO_A; + + if (type == 3) + { + /* put the 'n' bytes we have read into the input buffer + * for SSLv3 */ + s->rstate=SSL_ST_READ_HEADER; + s->packet_length=n; + if (s->s3->rbuf.buf == NULL) + if (!ssl3_setup_read_buffer(s)) + goto err; + + s->packet= &(s->s3->rbuf.buf[0]); + memcpy(s->packet,buf,n); + s->s3->rbuf.left=n; + s->s3->rbuf.offset=0; + } + else + { + s->packet_length=0; + s->s3->rbuf.left=0; + s->s3->rbuf.offset=0; + } + + if (s->version == TLS1_VERSION) + s->method = TLSv1_server_method(); + else + s->method = SSLv3_server_method(); +#if 0 /* ssl3_get_client_hello does this */ + s->client_version=(v[0]<<8)|v[1]; +#endif + s->handshake_func=s->method->ssl_accept; + } + + if ((type < 1) || (type > 3)) + { + /* bad, very bad */ + SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,SSL_R_UNKNOWN_PROTOCOL); + goto err; + } + s->init_num=0; + + if (buf != buf_space) OPENSSL_free(buf); + return(SSL_accept(s)); +err: + if (buf != buf_space) OPENSSL_free(buf); + return(-1); + } -- cgit v1.2.3