diff options
Diffstat (limited to 'apps/sc.c')
| -rw-r--r-- | apps/sc.c | 780 |
1 files changed, 780 insertions, 0 deletions
diff --git a/apps/sc.c b/apps/sc.c new file mode 100644 index 0000000000..0c00c37fc6 --- /dev/null +++ b/apps/sc.c @@ -0,0 +1,780 @@ +/* apps/s_client.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.] + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#define USE_SOCKETS +#ifdef NO_STDIO +#define APPS_WIN16 +#endif +#include "apps.h" +#include "x509.h" +#include "ssl.h" +#include "err.h" +#include "pem.h" +#include "s_apps.h" + +#ifdef WINDOWS +/* Most of the #if(n)def WINDOWS put in by Gerrit van Niekerk + <gerritvn@osi.co.za> to support the keyboard under Windows. + Tested using Win95, *should* work with NT and Win3.x +*/ +#include <conio.h> +#endif + +#undef PROG +#define PROG s_client_main + +/*#define SSL_HOST_NAME "www.netscape.com" */ +/*#define SSL_HOST_NAME "193.118.187.102" */ +#define SSL_HOST_NAME "localhost" + +/*#define TEST_CERT "client.pem" */ /* no default cert. */ + +#undef BUFSIZZ +#define BUFSIZZ 1024*8 + +extern int verify_depth; +extern int verify_error; + +#ifdef FIONBIO +static int c_nbio=0; +#endif +static int c_Pause=0; +static int c_debug=0; + +#ifndef NOPROTO +static void sc_usage(void); +static void print_stuff(BIO *berr,SSL *con,int full); +#else +static void sc_usage(); +static void print_stuff(); +#endif + +static BIO *bio_c_out=NULL; +static int c_quiet=0; + +static void sc_usage() + { + BIO_printf(bio_err,"usage: client args\n"); + BIO_printf(bio_err,"\n"); + BIO_printf(bio_err," -host host - use -connect instead\n"); + BIO_printf(bio_err," -port port - use -connect instead\n"); + BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR); + + BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n"); + BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n"); + BIO_printf(bio_err," -key arg - Private key file to use, PEM format assumed, in cert file if\n"); + BIO_printf(bio_err," not specified but cert file is.\n"); + BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n"); + BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n"); + BIO_printf(bio_err," -reconnect - Drop and re-make the connection with the same Session-ID\n"); + BIO_printf(bio_err," -pause - sleep(1) after each read(2) and write(2) system call\n"); + BIO_printf(bio_err," -debug - extra output\n"); + BIO_printf(bio_err," -nbio_test - more ssl protocol testing\n"); + BIO_printf(bio_err," -state - print the 'ssl' states\n"); +#ifdef FIONBIO + BIO_printf(bio_err," -nbio - Run with non-blocking IO\n"); +#endif + BIO_printf(bio_err," -quiet - no s_client output\n"); + BIO_printf(bio_err," -ssl2 - just use SSLv2\n"); + BIO_printf(bio_err," -ssl3 - just use SSLv3\n"); + BIO_printf(bio_err," -tls1 - just use TLSv1\n"); + BIO_printf(bio_err," -no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n"); + BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n"); + BIO_printf(bio_err," -cipher - prefered cipher to use, use the 'ssleay ciphers'\n"); + BIO_printf(bio_err," command to see what is available\n"); + + } + +int MAIN(argc, argv) +int argc; +char **argv; + { + int off=0; + SSL *con=NULL,*con2=NULL; + int s,k,width,state=0; + char *cbuf=NULL,*sbuf=NULL; + int cbuf_len,cbuf_off; + int sbuf_len,sbuf_off; + fd_set readfds,writefds; + short port=PORT; + int full_log=1; + char *host=SSL_HOST_NAME; + char *cert_file=NULL,*key_file=NULL; + char *CApath=NULL,*CAfile=NULL,*cipher=NULL; + int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0; + int write_tty,read_tty,write_ssl,read_ssl,tty_on; + SSL_CTX *ctx=NULL; + int ret=1,in_init=1,i,nbio_test=0; + SSL_METHOD *meth=NULL; + BIO *sbio; + /*static struct timeval timeout={10,0};*/ + +#if !defined(NO_SSL2) && !defined(NO_SSL3) + meth=SSLv23_client_method(); +#elif !defined(NO_SSL3) + meth=SSLv3_client_method(); +#elif !defined(NO_SSL2) + meth=SSLv2_client_method(); +#endif + + apps_startup(); + c_Pause=0; + c_quiet=0; + c_debug=0; + + if (bio_err == NULL) + bio_err=BIO_new_fp(stderr,BIO_NOCLOSE); + + if ( ((cbuf=Malloc(BUFSIZZ)) == NULL) || + ((sbuf=Malloc(BUFSIZZ)) == NULL)) + { + BIO_printf(bio_err,"out of memory\n"); + goto end; + } + + verify_depth=0; + verify_error=X509_V_OK; +#ifdef FIONBIO + c_nbio=0; +#endif +#ifdef WINDOWS + c_nbio = 1; +#endif + + argc--; + argv++; + while (argc >= 1) + { + if (strcmp(*argv,"-host") == 0) + { + if (--argc < 1) goto bad; + host= *(++argv); + } + else if (strcmp(*argv,"-port") == 0) + { + if (--argc < 1) goto bad; + port=atoi(*(++argv)); + if (port == 0) goto bad; + } + else if (strcmp(*argv,"-connect") == 0) + { + if (--argc < 1) goto bad; + if (!extract_host_port(*(++argv),&host,NULL,&port)) + goto bad; + } + else if (strcmp(*argv,"-verify") == 0) + { + verify=SSL_VERIFY_PEER; + if (--argc < 1) goto bad; + verify_depth=atoi(*(++argv)); + BIO_printf(bio_err,"verify depth is %d\n",verify_depth); + } + else if (strcmp(*argv,"-cert") == 0) + { + if (--argc < 1) goto bad; + cert_file= *(++argv); + } + else if (strcmp(*argv,"-quiet") == 0) + c_quiet=1; + else if (strcmp(*argv,"-pause") == 0) + c_Pause=1; + else if (strcmp(*argv,"-debug") == 0) + c_debug=1; + else if (strcmp(*argv,"-nbio_test") == 0) + nbio_test=1; + else if (strcmp(*argv,"-state") == 0) + state=1; +#ifndef NO_SSL2 + else if (strcmp(*argv,"-ssl2") == 0) + meth=SSLv2_client_method(); +#endif +#ifndef NO_SSL3 + else if (strcmp(*argv,"-ssl3") == 0) + meth=SSLv3_client_method(); +#endif +#ifndef NO_TLS1 + else if (strcmp(*argv,"-tls1") == 0) + meth=TLSv1_client_method(); +#endif + else if (strcmp(*argv,"-bugs") == 0) + bugs=1; + else if (strcmp(*argv,"-key") == 0) + { + if (--argc < 1) goto bad; + key_file= *(++argv); + } + else if (strcmp(*argv,"-reconnect") == 0) + { + reconnect=5; + } + else if (strcmp(*argv,"-CApath") == 0) + { + if (--argc < 1) goto bad; + CApath= *(++argv); + } + else if (strcmp(*argv,"-CAfile") == 0) + { + if (--argc < 1) goto bad; + CAfile= *(++argv); + } + else if (strcmp(*argv,"-no_tls1") == 0) + off|=SSL_OP_NO_TLSv1; + else if (strcmp(*argv,"-no_ssl3") == 0) + off|=SSL_OP_NO_SSLv3; + else if (strcmp(*argv,"-no_ssl2") == 0) + off|=SSL_OP_NO_SSLv2; + else if (strcmp(*argv,"-cipher") == 0) + { + if (--argc < 1) goto bad; + cipher= *(++argv); + } +#ifdef FIONBIO + else if (strcmp(*argv,"-nbio") == 0) + { c_nbio=1; } +#endif + else + { + BIO_printf(bio_err,"unknown option %s\n",*argv); + badop=1; + break; + } + argc--; + argv++; + } + if (badop) + { +bad: + sc_usage(); + goto end; + } + + if (bio_c_out == NULL) + { + if (c_quiet) + { + bio_c_out=BIO_new(BIO_s_null()); + } + else + { + if (bio_c_out == NULL) + bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE); + } + } + + SSLeay_add_ssl_algorithms(); + ctx=SSL_CTX_new(meth); + if (ctx == NULL) + { + ERR_print_errors(bio_err); + goto end; + } + + if (bugs) + SSL_CTX_set_options(ctx,SSL_OP_ALL|off); + else + SSL_CTX_set_options(ctx,off); + + if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback); + if (cipher != NULL) + SSL_CTX_set_cipher_list(ctx,cipher); +#if 0 + else + SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER")); +#endif + + SSL_CTX_set_verify(ctx,verify,verify_callback); + if (!set_cert_stuff(ctx,cert_file,key_file)) + goto end; + + if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) || + (!SSL_CTX_set_default_verify_paths(ctx))) + { + /* BIO_printf(bio_err,"error seting default verify locations\n"); */ + ERR_print_errors(bio_err); + /* goto end; */ + } + + SSL_load_error_strings(); + + con=(SSL *)SSL_new(ctx); +/* SSL_set_cipher_list(con,"RC4-MD5"); */ + +re_start: + + if (init_client(&s,host,port) == 0) + { + BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error()); + SHUTDOWN(s); + goto end; + } + BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s); + +#ifdef FIONBIO + if (c_nbio) + { + unsigned long l=1; + BIO_printf(bio_c_out,"turning on non blocking io\n"); + if (BIO_socket_ioctl(s,FIONBIO,&l) < 0) + { + ERR_print_errors(bio_err); + goto end; + } + } +#endif + if (c_Pause & 0x01) con->debug=1; + sbio=BIO_new_socket(s,BIO_NOCLOSE); + + if (nbio_test) + { + BIO *test; + + test=BIO_new(BIO_f_nbio_test()); + sbio=BIO_push(test,sbio); + } + + if (c_debug) + { + con->debug=1; + BIO_set_callback(sbio,bio_dump_cb); + BIO_set_callback_arg(sbio,bio_c_out); + } + + SSL_set_bio(con,sbio,sbio); + SSL_set_connect_state(con); + + /* ok, lets connect */ + width=SSL_get_fd(con)+1; + + read_tty=1; + write_tty=0; + tty_on=0; + read_ssl=1; + write_ssl=1; + + cbuf_len=0; + cbuf_off=0; + sbuf_len=0; + sbuf_off=0; + + for (;;) + { + FD_ZERO(&readfds); + FD_ZERO(&writefds); + + if (SSL_in_init(con) && !SSL_total_renegotiations(con)) + { + in_init=1; + tty_on=0; + } + else + { + tty_on=1; + if (in_init) + { + in_init=0; + print_stuff(bio_c_out,con,full_log); + if (full_log > 0) full_log--; + + if (reconnect) + { + reconnect--; + BIO_printf(bio_c_out,"drop connection and then reconnect\n"); + SSL_shutdown(con); + SSL_set_connect_state(con); + SHUTDOWN(SSL_get_fd(con)); + goto re_start; + } + } + } + +#ifndef WINDOWS + if (tty_on) + { + if (read_tty) FD_SET(fileno(stdin),&readfds); + if (write_tty) FD_SET(fileno(stdout),&writefds); + } +#endif + if (read_ssl) + FD_SET(SSL_get_fd(con),&readfds); + if (write_ssl) + FD_SET(SSL_get_fd(con),&writefds); + +/* printf("mode tty(%d %d%d) ssl(%d%d)\n", + tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ + +#ifndef WINDOWS + i=select(width,&readfds,&writefds,NULL,NULL); + if ( i < 0) + { + BIO_printf(bio_err,"bad select %d\n", + get_last_socket_error()); + goto shut; + /* goto end; */ + } + + if (FD_ISSET(SSL_get_fd(con),&writefds)) +#else + if (write_ssl) +#endif + { + k=SSL_write(con,&(cbuf[cbuf_off]), + (unsigned int)cbuf_len); + switch (SSL_get_error(con,k)) + { + case SSL_ERROR_NONE: + cbuf_off+=k; + cbuf_len-=k; + if (k <= 0) goto end; + /* we have done a write(con,NULL,0); */ + if (cbuf_len <= 0) + { + read_tty=1; + write_ssl=0; + } + else /* if (cbuf_len > 0) */ + { + read_tty=0; + write_ssl=1; + } + break; + case SSL_ERROR_WANT_WRITE: +#ifndef WINDOWS + BIO_printf(bio_c_out,"write W BLOCK\n"); +#endif + write_ssl=1; + read_tty=0; + break; + case SSL_ERROR_WANT_READ: +#ifndef WINDOWS + BIO_printf(bio_c_out,"write R BLOCK\n"); +#endif + write_tty=0; + read_ssl=1; + write_ssl=0; + break; + case SSL_ERROR_WANT_X509_LOOKUP: + BIO_printf(bio_c_out,"write X BLOCK\n"); + break; + case SSL_ERROR_ZERO_RETURN: + if (cbuf_len != 0) + { + BIO_printf(bio_c_out,"shutdown\n"); + goto shut; + } + else + { + read_tty=1; + write_ssl=0; + break; + } + + case SSL_ERROR_SYSCALL: + if ((k != 0) || (cbuf_len != 0)) + { + BIO_printf(bio_err,"write:errno=%d\n", + get_last_socket_error()); + goto shut; + } + else + { + read_tty=1; + write_ssl=0; + } + break; + case SSL_ERROR_SSL: + ERR_print_errors(bio_err); + goto shut; + } + } +#ifndef WINDOWS + else if (FD_ISSET(fileno(stdout),&writefds)) +#else + else if (tty_on && write_tty) +#endif + { + i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len); + + if (i <= 0) + { + BIO_printf(bio_c_out,"DONE\n"); + goto shut; + /* goto end; */ + } + + sbuf_len-=i;; + sbuf_off+=i; + if (sbuf_len <= 0) + { + read_ssl=1; + write_tty=0; + } + } +#ifndef WINDOWS + else if (FD_ISSET(SSL_get_fd(con),&readfds)) +#else + if (read_ssl) +#endif + { +#ifdef RENEG +{ static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } } +#endif + k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ ); + + switch (SSL_get_error(con,k)) + { + case SSL_ERROR_NONE: + if (k <= 0) + goto end; + sbuf_off=0; + sbuf_len=k; + + read_ssl=0; + write_tty=1; + break; + case SSL_ERROR_WANT_WRITE: +#ifndef WINDOWS + BIO_printf(bio_c_out,"read W BLOCK\n"); +#endif + write_ssl=1; + read_tty=0; + break; + case SSL_ERROR_WANT_READ: +#ifndef WINDOWS + BIO_printf(bio_c_out,"read R BLOCK\n"); +#endif + write_tty=0; + read_ssl=1; + if ((read_tty == 0) && (write_ssl == 0)) + write_ssl=1; + break; + case SSL_ERROR_WANT_X509_LOOKUP: + BIO_printf(bio_c_out,"read X BLOCK\n"); + break; + case SSL_ERROR_SYSCALL: + BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error()); + goto shut; + case SSL_ERROR_ZERO_RETURN: + BIO_printf(bio_c_out,"closed\n"); + goto shut; + case SSL_ERROR_SSL: + ERR_print_errors(bio_err); + goto shut; + break; + } + } + +#ifndef WINDOWS + else if (FD_ISSET(fileno(stdin),&readfds)) + { + i=read(fileno(stdin),cbuf,BUFSIZZ); +#else + if (tty_on && read_tty && _kbhit()) + { + i = 1; + cbuf[0] = _getch(); +#endif + + if ((!c_quiet) && ((i <= 0) || (cbuf[0] == 'Q'))) + { + BIO_printf(bio_err,"DONE\n"); + goto shut; + } + + if ((!c_quiet) && (cbuf[0] == 'R')) + { + SSL_renegotiate(con); + read_tty=0; + write_ssl=1; + } + else + { + cbuf_len=i; + cbuf_off=0; + } + + read_tty=0; + write_ssl=1; + } + } +shut: + SSL_shutdown(con); + SHUTDOWN(SSL_get_fd(con)); + ret=0; +end: + if (con != NULL) SSL_free(con); + if (con2 != NULL) SSL_free(con2); + if (ctx != NULL) SSL_CTX_free(ctx); + if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); Free(cbuf); } + if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); Free(sbuf); } + if (bio_c_out != NULL) + { + BIO_free(bio_c_out); + bio_c_out=NULL; + } + EXIT(ret); + } + + +static void print_stuff(bio,s,full) +BIO *bio; +SSL *s; +int full; + { + X509 *peer=NULL; + char *p; + static char *space=" "; + char buf[BUFSIZ]; + STACK *sk; + SSL_CIPHER *c; + X509_NAME *xn; + int j,i; + + if (full) + { + sk=SSL_get_peer_cert_chain(s); + if (sk != NULL) + { + BIO_printf(bio,"---\nCertificate chain\n"); + for (i=0; i<sk_num(sk); i++) + { + X509_NAME_oneline(X509_get_subject_name((X509 *) + sk_value(sk,i)),buf,BUFSIZ); + BIO_printf(bio,"%2d s:%s\n",i,buf); + X509_NAME_oneline(X509_get_issuer_name((X509 *) + sk_value(sk,i)),buf,BUFSIZ); + BIO_printf(bio," i:%s\n",buf); + } + } + + BIO_printf(bio,"---\n"); + peer=SSL_get_peer_certificate(s); + if (peer != NULL) + { + BIO_printf(bio,"Server certificate\n"); + PEM_write_bio_X509(bio,peer); + X509_NAME_oneline(X509_get_subject_name(peer), + buf,BUFSIZ); + BIO_printf(bio,"subject=%s\n",buf); + X509_NAME_oneline(X509_get_issuer_name(peer), + buf,BUFSIZ); + BIO_printf(bio,"issuer=%s\n",buf); + } + else + BIO_printf(bio,"no peer certificate available\n"); + + sk=SSL_get_client_CA_list(s); + if ((sk != NULL) && (sk_num(sk) > 0)) + { + BIO_printf(bio,"---\nAcceptable client certificate CA names\n"); + for (i=0; i<sk_num(sk); i++) + { + xn=(X509_NAME *)sk_value(sk,i); + X509_NAME_oneline(xn,buf,sizeof(buf)); + BIO_write(bio,buf,strlen(buf)); + BIO_write(bio,"\n",1); + } + } + else + { + BIO_printf(bio,"---\nNo client certificate CA names sent\n"); + } + p=SSL_get_shared_ciphers(s,buf,BUFSIZ); + if (p != NULL) + { + BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n"); + j=i=0; + while (*p) + { + if (*p == ':') + { + BIO_write(bio,space,15-j%25); + i++; + j=0; + BIO_write(bio,((i%3)?" ":"\n"),1); + } + else + { + BIO_write(bio,p,1); + j++; + } + p++; + } + BIO_write(bio,"\n",1); + } + + BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n", + BIO_number_read(SSL_get_rbio(s)), + BIO_number_written(SSL_get_wbio(s))); + } + BIO_printf(bio,((s->hit)?"---\nReused, ":"---\nNew, ")); + c=SSL_get_current_cipher(s); + BIO_printf(bio,"%s, Cipher is %s\n", + SSL_CIPHER_get_version(c), + SSL_CIPHER_get_name(c)); + if (peer != NULL) + BIO_printf(bio,"Server public key is %d bit\n", + EVP_PKEY_bits(X509_get_pubkey(peer))); + SSL_SESSION_print(bio,SSL_get_session(s)); + BIO_printf(bio,"---\n"); + if (peer != NULL) + X509_free(peer); + } + |