1323 lines
41 KiB
C
1323 lines
41 KiB
C
/*
|
|
* SSL client with certificate authentication
|
|
*
|
|
* Copyright (C) 2006-2013, Brainspark B.V.
|
|
*
|
|
* This file is part of PolarSSL (http://www.polarssl.org)
|
|
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#if !defined(POLARSSL_CONFIG_FILE)
|
|
#include "polarssl/config.h"
|
|
#else
|
|
#include POLARSSL_CONFIG_FILE
|
|
#endif
|
|
|
|
#if !defined(POLARSSL_ENTROPY_C) || \
|
|
!defined(POLARSSL_SSL_TLS_C) || !defined(POLARSSL_SSL_CLI_C) || \
|
|
!defined(POLARSSL_NET_C) || !defined(POLARSSL_CTR_DRBG_C)
|
|
#include <stdio.h>
|
|
int main( int argc, char *argv[] )
|
|
{
|
|
((void) argc);
|
|
((void) argv);
|
|
|
|
printf("POLARSSL_ENTROPY_C and/or "
|
|
"POLARSSL_SSL_TLS_C and/or POLARSSL_SSL_CLI_C and/or "
|
|
"POLARSSL_NET_C and/or POLARSSL_CTR_DRBG_C not defined.\n");
|
|
return( 0 );
|
|
}
|
|
#else
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
|
|
#include "polarssl/net.h"
|
|
#include "polarssl/ssl.h"
|
|
#include "polarssl/entropy.h"
|
|
#include "polarssl/ctr_drbg.h"
|
|
#include "polarssl/certs.h"
|
|
#include "polarssl/x509.h"
|
|
#include "polarssl/error.h"
|
|
#include "polarssl/debug.h"
|
|
|
|
#if defined(POLARSSL_TIMING_C)
|
|
#include "polarssl/timing.h"
|
|
#endif
|
|
|
|
#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
|
|
#if !defined snprintf
|
|
#define snprintf _snprintf
|
|
#endif
|
|
#endif
|
|
|
|
#define DFL_SERVER_NAME "localhost"
|
|
#define DFL_SERVER_ADDR NULL
|
|
#define DFL_SERVER_PORT 4433
|
|
#define DFL_REQUEST_PAGE "/"
|
|
#define DFL_REQUEST_SIZE -1
|
|
#define DFL_DEBUG_LEVEL 0
|
|
#define DFL_NBIO 0
|
|
#define DFL_CA_FILE ""
|
|
#define DFL_CA_PATH ""
|
|
#define DFL_CRT_FILE ""
|
|
#define DFL_KEY_FILE ""
|
|
#define DFL_PSK ""
|
|
#define DFL_PSK_IDENTITY "Client_identity"
|
|
#define DFL_FORCE_CIPHER 0
|
|
#define DFL_RENEGOTIATION SSL_RENEGOTIATION_DISABLED
|
|
#define DFL_ALLOW_LEGACY SSL_LEGACY_NO_RENEGOTIATION
|
|
#define DFL_RENEGOTIATE 0
|
|
#define DFL_EXCHANGES 1
|
|
#define DFL_MIN_VERSION -1
|
|
#define DFL_MAX_VERSION -1
|
|
#define DFL_AUTH_MODE SSL_VERIFY_REQUIRED
|
|
#define DFL_MFL_CODE SSL_MAX_FRAG_LEN_NONE
|
|
#define DFL_TRUNC_HMAC 0
|
|
#define DFL_RECONNECT 0
|
|
#define DFL_RECO_DELAY 0
|
|
#define DFL_TICKETS SSL_SESSION_TICKETS_ENABLED
|
|
#define DFL_ALPN_STRING NULL
|
|
#define DFL_TRANSPORT SSL_TRANSPORT_STREAM
|
|
|
|
#define GET_REQUEST "GET %s HTTP/1.0\r\nExtra-header: "
|
|
#define GET_REQUEST_END "\r\n\r\n"
|
|
|
|
/*
|
|
* global options
|
|
*/
|
|
struct options
|
|
{
|
|
const char *server_name; /* hostname of the server (client only) */
|
|
const char *server_addr; /* address of the server (client only) */
|
|
int server_port; /* port on which the ssl service runs */
|
|
int debug_level; /* level of debugging */
|
|
int nbio; /* should I/O be blocking? */
|
|
const char *request_page; /* page on server to request */
|
|
int request_size; /* pad request with header to requested size */
|
|
const char *ca_file; /* the file with the CA certificate(s) */
|
|
const char *ca_path; /* the path with the CA certificate(s) reside */
|
|
const char *crt_file; /* the file with the client certificate */
|
|
const char *key_file; /* the file with the client key */
|
|
const char *psk; /* the pre-shared key */
|
|
const char *psk_identity; /* the pre-shared key identity */
|
|
int force_ciphersuite[2]; /* protocol/ciphersuite to use, or all */
|
|
int renegotiation; /* enable / disable renegotiation */
|
|
int allow_legacy; /* allow legacy renegotiation */
|
|
int renegotiate; /* attempt renegotiation? */
|
|
int renego_delay; /* delay before enforcing renegotiation */
|
|
int exchanges; /* number of data exchanges */
|
|
int min_version; /* minimum protocol version accepted */
|
|
int max_version; /* maximum protocol version accepted */
|
|
int auth_mode; /* verify mode for connection */
|
|
unsigned char mfl_code; /* code for maximum fragment length */
|
|
int trunc_hmac; /* negotiate truncated hmac or not */
|
|
int reconnect; /* attempt to resume session */
|
|
int reco_delay; /* delay in seconds before resuming session */
|
|
int tickets; /* enable / disable session tickets */
|
|
const char *alpn_string; /* ALPN supported protocols */
|
|
int transport; /* TLS or DTLS? */
|
|
} opt;
|
|
|
|
static void my_debug( void *ctx, int level, const char *str )
|
|
{
|
|
((void) level);
|
|
|
|
fprintf( (FILE *) ctx, "%s", str );
|
|
fflush( (FILE *) ctx );
|
|
}
|
|
|
|
/*
|
|
* Test recv/send functions that make sure each try returns
|
|
* WANT_READ/WANT_WRITE at least once before sucesseding
|
|
*/
|
|
static int my_recv( void *ctx, unsigned char *buf, size_t len )
|
|
{
|
|
static int first_try = 1;
|
|
int ret;
|
|
|
|
if( first_try )
|
|
{
|
|
first_try = 0;
|
|
return( POLARSSL_ERR_NET_WANT_READ );
|
|
}
|
|
|
|
ret = net_recv( ctx, buf, len );
|
|
if( ret != POLARSSL_ERR_NET_WANT_READ )
|
|
first_try = 1; /* Next call will be a new operation */
|
|
return( ret );
|
|
}
|
|
|
|
static int my_send( void *ctx, const unsigned char *buf, size_t len )
|
|
{
|
|
static int first_try = 1;
|
|
int ret;
|
|
|
|
if( first_try )
|
|
{
|
|
first_try = 0;
|
|
return( POLARSSL_ERR_NET_WANT_WRITE );
|
|
}
|
|
|
|
ret = net_send( ctx, buf, len );
|
|
if( ret != POLARSSL_ERR_NET_WANT_WRITE )
|
|
first_try = 1; /* Next call will be a new operation */
|
|
return( ret );
|
|
}
|
|
|
|
#if defined(POLARSSL_X509_CRT_PARSE_C)
|
|
/*
|
|
* Enabled if debug_level > 1 in code below
|
|
*/
|
|
static int my_verify( void *data, x509_crt *crt, int depth, int *flags )
|
|
{
|
|
char buf[1024];
|
|
((void) data);
|
|
|
|
printf( "\nVerify requested for (Depth %d):\n", depth );
|
|
x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
|
|
printf( "%s", buf );
|
|
|
|
if( ( (*flags) & BADCERT_EXPIRED ) != 0 )
|
|
printf( " ! server certificate has expired\n" );
|
|
|
|
if( ( (*flags) & BADCERT_REVOKED ) != 0 )
|
|
printf( " ! server certificate has been revoked\n" );
|
|
|
|
if( ( (*flags) & BADCERT_CN_MISMATCH ) != 0 )
|
|
printf( " ! CN mismatch\n" );
|
|
|
|
if( ( (*flags) & BADCERT_NOT_TRUSTED ) != 0 )
|
|
printf( " ! self-signed or not signed by a trusted CA\n" );
|
|
|
|
if( ( (*flags) & BADCRL_NOT_TRUSTED ) != 0 )
|
|
printf( " ! CRL not trusted\n" );
|
|
|
|
if( ( (*flags) & BADCRL_EXPIRED ) != 0 )
|
|
printf( " ! CRL expired\n" );
|
|
|
|
if( ( (*flags) & BADCERT_OTHER ) != 0 )
|
|
printf( " ! other (unknown) flag\n" );
|
|
|
|
if ( ( *flags ) == 0 )
|
|
printf( " This certificate has no flags\n" );
|
|
|
|
return( 0 );
|
|
}
|
|
#endif /* POLARSSL_X509_CRT_PARSE_C */
|
|
|
|
#if defined(POLARSSL_X509_CRT_PARSE_C)
|
|
#if defined(POLARSSL_FS_IO)
|
|
#define USAGE_IO \
|
|
" ca_file=%%s The single file containing the top-level CA(s) you fully trust\n" \
|
|
" default: \"\" (pre-loaded)\n" \
|
|
" ca_path=%%s The path containing the top-level CA(s) you fully trust\n" \
|
|
" default: \"\" (pre-loaded) (overrides ca_file)\n" \
|
|
" crt_file=%%s Your own cert and chain (in bottom to top order, top may be omitted)\n" \
|
|
" default: \"\" (pre-loaded)\n" \
|
|
" key_file=%%s default: \"\" (pre-loaded)\n"
|
|
#else
|
|
#define USAGE_IO \
|
|
" No file operations available (POLARSSL_FS_IO not defined)\n"
|
|
#endif /* POLARSSL_FS_IO */
|
|
#else
|
|
#define USAGE_IO ""
|
|
#endif /* POLARSSL_X509_CRT_PARSE_C */
|
|
|
|
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
|
|
#define USAGE_PSK \
|
|
" psk=%%s default: \"\" (in hex, without 0x)\n" \
|
|
" psk_identity=%%s default: \"Client_identity\"\n"
|
|
#else
|
|
#define USAGE_PSK ""
|
|
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
|
|
|
|
#if defined(POLARSSL_SSL_SESSION_TICKETS)
|
|
#define USAGE_TICKETS \
|
|
" tickets=%%d default: 1 (enabled)\n"
|
|
#else
|
|
#define USAGE_TICKETS ""
|
|
#endif /* POLARSSL_SSL_SESSION_TICKETS */
|
|
|
|
#if defined(POLARSSL_SSL_TRUNCATED_HMAC)
|
|
#define USAGE_TRUNC_HMAC \
|
|
" trunc_hmac=%%d default: 0 (disabled)\n"
|
|
#else
|
|
#define USAGE_TRUNC_HMAC ""
|
|
#endif /* POLARSSL_SSL_TRUNCATED_HMAC */
|
|
|
|
#if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
|
|
#define USAGE_MAX_FRAG_LEN \
|
|
" max_frag_len=%%d default: 16384 (tls default)\n" \
|
|
" options: 512, 1024, 2048, 4096\n"
|
|
#else
|
|
#define USAGE_MAX_FRAG_LEN ""
|
|
#endif /* POLARSSL_SSL_MAX_FRAGMENT_LENGTH */
|
|
|
|
#if defined(POLARSSL_TIMING_C)
|
|
#define USAGE_TIME \
|
|
" reco_delay=%%d default: 0 seconds\n"
|
|
#else
|
|
#define USAGE_TIME ""
|
|
#endif /* POLARSSL_TIMING_C */
|
|
|
|
#if defined(POLARSSL_SSL_ALPN)
|
|
#define USAGE_ALPN \
|
|
" alpn=%%s default: \"\" (disabled)\n" \
|
|
" example: spdy/1,http/1.1\n"
|
|
#else
|
|
#define USAGE_ALPN ""
|
|
#endif /* POLARSSL_SSL_ALPN */
|
|
|
|
#define USAGE \
|
|
"\n usage: ssl_client2 param=<>...\n" \
|
|
"\n acceptable parameters:\n" \
|
|
" server_name=%%s default: localhost\n" \
|
|
" server_addr=%%s default: given by name\n" \
|
|
" server_port=%%d default: 4433\n" \
|
|
" request_page=%%s default: \".\"\n" \
|
|
" request_size=%%d default: about 34 (basic request)\n" \
|
|
" (minimum: 0, max: 16384)\n" \
|
|
" dtls=%%d default: 0 (TLS)\n" \
|
|
" debug_level=%%d default: 0 (disabled)\n" \
|
|
" nbio=%%d default: 0 (blocking I/O)\n" \
|
|
" options: 1 (non-blocking), 2 (added delays)\n" \
|
|
"\n" \
|
|
" auth_mode=%%s default: \"optional\"\n" \
|
|
" options: none, optional, required\n" \
|
|
USAGE_IO \
|
|
"\n" \
|
|
USAGE_PSK \
|
|
"\n" \
|
|
" renegotiation=%%d default: 1 (enabled)\n" \
|
|
" allow_legacy=%%d default: 0 (disabled)\n" \
|
|
" renegotiate=%%d default: 0 (disabled)\n" \
|
|
" exchanges=%%d default: 1\n" \
|
|
" reconnect=%%d default: 0 (disabled)\n" \
|
|
USAGE_TIME \
|
|
USAGE_TICKETS \
|
|
USAGE_MAX_FRAG_LEN \
|
|
USAGE_TRUNC_HMAC \
|
|
USAGE_ALPN \
|
|
"\n" \
|
|
" min_version=%%s default: \"\" (ssl3)\n" \
|
|
" max_version=%%s default: \"\" (tls1_2)\n" \
|
|
" force_version=%%s default: \"\" (none)\n" \
|
|
" options: ssl3, tls1, tls1_1, tls1_2, dtls1, dtls1_2\n" \
|
|
" auth_mode=%%s default: \"required\"\n" \
|
|
" options: none, optional, required\n" \
|
|
"\n" \
|
|
" force_ciphersuite=<name> default: all enabled\n"\
|
|
" acceptable ciphersuite names:\n"
|
|
|
|
int main( int argc, char *argv[] )
|
|
{
|
|
int ret = 0, len, tail_len, server_fd, i, written, frags;
|
|
unsigned char buf[SSL_MAX_CONTENT_LEN + 1];
|
|
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
|
|
unsigned char psk[POLARSSL_PSK_MAX_LEN];
|
|
size_t psk_len = 0;
|
|
#endif
|
|
#if defined(POLARSSL_SSL_ALPN)
|
|
const char *alpn_list[10];
|
|
#endif
|
|
const char *pers = "ssl_client2";
|
|
|
|
entropy_context entropy;
|
|
ctr_drbg_context ctr_drbg;
|
|
ssl_context ssl;
|
|
ssl_session saved_session;
|
|
#if defined(POLARSSL_X509_CRT_PARSE_C)
|
|
x509_crt cacert;
|
|
x509_crt clicert;
|
|
pk_context pkey;
|
|
#endif
|
|
char *p, *q;
|
|
const int *list;
|
|
|
|
/*
|
|
* Make sure memory references are valid.
|
|
*/
|
|
server_fd = 0;
|
|
memset( &ssl, 0, sizeof( ssl_context ) );
|
|
memset( &saved_session, 0, sizeof( ssl_session ) );
|
|
#if defined(POLARSSL_X509_CRT_PARSE_C)
|
|
x509_crt_init( &cacert );
|
|
x509_crt_init( &clicert );
|
|
pk_init( &pkey );
|
|
#endif
|
|
#if defined(POLARSSL_SSL_ALPN)
|
|
memset( (void * ) alpn_list, 0, sizeof( alpn_list ) );
|
|
#endif
|
|
|
|
if( argc == 0 )
|
|
{
|
|
usage:
|
|
if( ret == 0 )
|
|
ret = 1;
|
|
|
|
printf( USAGE );
|
|
|
|
list = ssl_list_ciphersuites();
|
|
while( *list )
|
|
{
|
|
printf(" %-42s", ssl_get_ciphersuite_name( *list ) );
|
|
list++;
|
|
if( !*list )
|
|
break;
|
|
printf(" %s\n", ssl_get_ciphersuite_name( *list ) );
|
|
list++;
|
|
}
|
|
printf("\n");
|
|
goto exit;
|
|
}
|
|
|
|
opt.server_name = DFL_SERVER_NAME;
|
|
opt.server_addr = DFL_SERVER_ADDR;
|
|
opt.server_port = DFL_SERVER_PORT;
|
|
opt.debug_level = DFL_DEBUG_LEVEL;
|
|
opt.nbio = DFL_NBIO;
|
|
opt.request_page = DFL_REQUEST_PAGE;
|
|
opt.request_size = DFL_REQUEST_SIZE;
|
|
opt.ca_file = DFL_CA_FILE;
|
|
opt.ca_path = DFL_CA_PATH;
|
|
opt.crt_file = DFL_CRT_FILE;
|
|
opt.key_file = DFL_KEY_FILE;
|
|
opt.psk = DFL_PSK;
|
|
opt.psk_identity = DFL_PSK_IDENTITY;
|
|
opt.force_ciphersuite[0]= DFL_FORCE_CIPHER;
|
|
opt.renegotiation = DFL_RENEGOTIATION;
|
|
opt.allow_legacy = DFL_ALLOW_LEGACY;
|
|
opt.renegotiate = DFL_RENEGOTIATE;
|
|
opt.exchanges = DFL_EXCHANGES;
|
|
opt.min_version = DFL_MIN_VERSION;
|
|
opt.max_version = DFL_MAX_VERSION;
|
|
opt.auth_mode = DFL_AUTH_MODE;
|
|
opt.mfl_code = DFL_MFL_CODE;
|
|
opt.trunc_hmac = DFL_TRUNC_HMAC;
|
|
opt.reconnect = DFL_RECONNECT;
|
|
opt.reco_delay = DFL_RECO_DELAY;
|
|
opt.tickets = DFL_TICKETS;
|
|
opt.alpn_string = DFL_ALPN_STRING;
|
|
|
|
for( i = 1; i < argc; i++ )
|
|
{
|
|
p = argv[i];
|
|
if( ( q = strchr( p, '=' ) ) == NULL )
|
|
goto usage;
|
|
*q++ = '\0';
|
|
|
|
if( strcmp( p, "server_name" ) == 0 )
|
|
opt.server_name = q;
|
|
else if( strcmp( p, "server_addr" ) == 0 )
|
|
opt.server_addr = q;
|
|
else if( strcmp( p, "server_port" ) == 0 )
|
|
{
|
|
opt.server_port = atoi( q );
|
|
if( opt.server_port < 1 || opt.server_port > 65535 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "dtls" ) == 0 )
|
|
{
|
|
int t = atoi( q );
|
|
if( t == 0 )
|
|
opt.transport = SSL_TRANSPORT_STREAM;
|
|
else if( t == 1 )
|
|
opt.transport = SSL_TRANSPORT_DATAGRAM;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "debug_level" ) == 0 )
|
|
{
|
|
opt.debug_level = atoi( q );
|
|
if( opt.debug_level < 0 || opt.debug_level > 65535 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "nbio" ) == 0 )
|
|
{
|
|
opt.nbio = atoi( q );
|
|
if( opt.nbio < 0 || opt.nbio > 2 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "request_page" ) == 0 )
|
|
opt.request_page = q;
|
|
else if( strcmp( p, "request_size" ) == 0 )
|
|
{
|
|
opt.request_size = atoi( q );
|
|
if( opt.request_size < 0 || opt.request_size > SSL_MAX_CONTENT_LEN )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "ca_file" ) == 0 )
|
|
opt.ca_file = q;
|
|
else if( strcmp( p, "ca_path" ) == 0 )
|
|
opt.ca_path = q;
|
|
else if( strcmp( p, "crt_file" ) == 0 )
|
|
opt.crt_file = q;
|
|
else if( strcmp( p, "key_file" ) == 0 )
|
|
opt.key_file = q;
|
|
else if( strcmp( p, "psk" ) == 0 )
|
|
opt.psk = q;
|
|
else if( strcmp( p, "psk_identity" ) == 0 )
|
|
opt.psk_identity = q;
|
|
else if( strcmp( p, "force_ciphersuite" ) == 0 )
|
|
{
|
|
opt.force_ciphersuite[0] = ssl_get_ciphersuite_id( q );
|
|
|
|
if( opt.force_ciphersuite[0] == 0 )
|
|
{
|
|
ret = 2;
|
|
goto usage;
|
|
}
|
|
opt.force_ciphersuite[1] = 0;
|
|
}
|
|
else if( strcmp( p, "renegotiation" ) == 0 )
|
|
{
|
|
opt.renegotiation = (atoi( q )) ? SSL_RENEGOTIATION_ENABLED :
|
|
SSL_RENEGOTIATION_DISABLED;
|
|
}
|
|
else if( strcmp( p, "allow_legacy" ) == 0 )
|
|
{
|
|
opt.allow_legacy = atoi( q );
|
|
if( opt.allow_legacy < 0 || opt.allow_legacy > 1 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "renegotiate" ) == 0 )
|
|
{
|
|
opt.renegotiate = atoi( q );
|
|
if( opt.renegotiate < 0 || opt.renegotiate > 1 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "exchanges" ) == 0 )
|
|
{
|
|
opt.exchanges = atoi( q );
|
|
if( opt.exchanges < 1 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "reconnect" ) == 0 )
|
|
{
|
|
opt.reconnect = atoi( q );
|
|
if( opt.reconnect < 0 || opt.reconnect > 2 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "reco_delay" ) == 0 )
|
|
{
|
|
opt.reco_delay = atoi( q );
|
|
if( opt.reco_delay < 0 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "tickets" ) == 0 )
|
|
{
|
|
opt.tickets = atoi( q );
|
|
if( opt.tickets < 0 || opt.tickets > 2 )
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "alpn" ) == 0 )
|
|
{
|
|
opt.alpn_string = q;
|
|
}
|
|
else if( strcmp( p, "min_version" ) == 0 )
|
|
{
|
|
if( strcmp( q, "ssl3" ) == 0 )
|
|
opt.min_version = SSL_MINOR_VERSION_0;
|
|
else if( strcmp( q, "tls1" ) == 0 )
|
|
opt.min_version = SSL_MINOR_VERSION_1;
|
|
else if( strcmp( q, "tls1_1" ) == 0 ||
|
|
strcmp( q, "dtls1" ) == 0 )
|
|
opt.min_version = SSL_MINOR_VERSION_2;
|
|
else if( strcmp( q, "tls1_2" ) == 0 ||
|
|
strcmp( q, "dtls1_2" ) == 0 )
|
|
opt.min_version = SSL_MINOR_VERSION_3;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "max_version" ) == 0 )
|
|
{
|
|
if( strcmp( q, "ssl3" ) == 0 )
|
|
opt.max_version = SSL_MINOR_VERSION_0;
|
|
else if( strcmp( q, "tls1" ) == 0 )
|
|
opt.max_version = SSL_MINOR_VERSION_1;
|
|
else if( strcmp( q, "tls1_1" ) == 0 ||
|
|
strcmp( q, "dtls1" ) == 0 )
|
|
opt.max_version = SSL_MINOR_VERSION_2;
|
|
else if( strcmp( q, "tls1_2" ) == 0 ||
|
|
strcmp( q, "dtls1_2" ) == 0 )
|
|
opt.max_version = SSL_MINOR_VERSION_3;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "force_version" ) == 0 )
|
|
{
|
|
if( strcmp( q, "ssl3" ) == 0 )
|
|
{
|
|
opt.min_version = SSL_MINOR_VERSION_0;
|
|
opt.max_version = SSL_MINOR_VERSION_0;
|
|
}
|
|
else if( strcmp( q, "tls1" ) == 0 )
|
|
{
|
|
opt.min_version = SSL_MINOR_VERSION_1;
|
|
opt.max_version = SSL_MINOR_VERSION_1;
|
|
}
|
|
else if( strcmp( q, "tls1_1" ) == 0 ||
|
|
strcmp( q, "dtls1" ) == 0 )
|
|
{
|
|
opt.min_version = SSL_MINOR_VERSION_2;
|
|
opt.max_version = SSL_MINOR_VERSION_2;
|
|
}
|
|
else if( strcmp( q, "tls1_2" ) == 0 ||
|
|
strcmp( q, "dtls1_2" ) == 0 )
|
|
{
|
|
opt.min_version = SSL_MINOR_VERSION_3;
|
|
opt.max_version = SSL_MINOR_VERSION_3;
|
|
}
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "auth_mode" ) == 0 )
|
|
{
|
|
if( strcmp( q, "none" ) == 0 )
|
|
opt.auth_mode = SSL_VERIFY_NONE;
|
|
else if( strcmp( q, "optional" ) == 0 )
|
|
opt.auth_mode = SSL_VERIFY_OPTIONAL;
|
|
else if( strcmp( q, "required" ) == 0 )
|
|
opt.auth_mode = SSL_VERIFY_REQUIRED;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "max_frag_len" ) == 0 )
|
|
{
|
|
if( strcmp( q, "512" ) == 0 )
|
|
opt.mfl_code = SSL_MAX_FRAG_LEN_512;
|
|
else if( strcmp( q, "1024" ) == 0 )
|
|
opt.mfl_code = SSL_MAX_FRAG_LEN_1024;
|
|
else if( strcmp( q, "2048" ) == 0 )
|
|
opt.mfl_code = SSL_MAX_FRAG_LEN_2048;
|
|
else if( strcmp( q, "4096" ) == 0 )
|
|
opt.mfl_code = SSL_MAX_FRAG_LEN_4096;
|
|
else
|
|
goto usage;
|
|
}
|
|
else if( strcmp( p, "trunc_hmac" ) == 0 )
|
|
{
|
|
opt.trunc_hmac = atoi( q );
|
|
if( opt.trunc_hmac < 0 || opt.trunc_hmac > 1 )
|
|
goto usage;
|
|
}
|
|
else
|
|
goto usage;
|
|
}
|
|
|
|
#if defined(POLARSSL_DEBUG_C)
|
|
debug_set_threshold( opt.debug_level );
|
|
#endif
|
|
|
|
if( opt.force_ciphersuite[0] > 0 )
|
|
{
|
|
const ssl_ciphersuite_t *ciphersuite_info;
|
|
ciphersuite_info = ssl_ciphersuite_from_id( opt.force_ciphersuite[0] );
|
|
|
|
if( opt.max_version != -1 &&
|
|
ciphersuite_info->min_minor_ver > opt.max_version )
|
|
{
|
|
printf("forced ciphersuite not allowed with this protocol version\n");
|
|
ret = 2;
|
|
goto usage;
|
|
}
|
|
if( opt.min_version != -1 &&
|
|
ciphersuite_info->max_minor_ver < opt.min_version )
|
|
{
|
|
printf("forced ciphersuite not allowed with this protocol version\n");
|
|
ret = 2;
|
|
goto usage;
|
|
}
|
|
if( opt.max_version > ciphersuite_info->max_minor_ver )
|
|
opt.max_version = ciphersuite_info->max_minor_ver;
|
|
if( opt.min_version < ciphersuite_info->min_minor_ver )
|
|
opt.min_version = ciphersuite_info->min_minor_ver;
|
|
}
|
|
|
|
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
|
|
/*
|
|
* Unhexify the pre-shared key if any is given
|
|
*/
|
|
if( strlen( opt.psk ) )
|
|
{
|
|
unsigned char c;
|
|
size_t j;
|
|
|
|
if( strlen( opt.psk ) % 2 != 0 )
|
|
{
|
|
printf("pre-shared key not valid hex\n");
|
|
goto exit;
|
|
}
|
|
|
|
psk_len = strlen( opt.psk ) / 2;
|
|
|
|
for( j = 0; j < strlen( opt.psk ); j += 2 )
|
|
{
|
|
c = opt.psk[j];
|
|
if( c >= '0' && c <= '9' )
|
|
c -= '0';
|
|
else if( c >= 'a' && c <= 'f' )
|
|
c -= 'a' - 10;
|
|
else if( c >= 'A' && c <= 'F' )
|
|
c -= 'A' - 10;
|
|
else
|
|
{
|
|
printf("pre-shared key not valid hex\n");
|
|
goto exit;
|
|
}
|
|
psk[ j / 2 ] = c << 4;
|
|
|
|
c = opt.psk[j + 1];
|
|
if( c >= '0' && c <= '9' )
|
|
c -= '0';
|
|
else if( c >= 'a' && c <= 'f' )
|
|
c -= 'a' - 10;
|
|
else if( c >= 'A' && c <= 'F' )
|
|
c -= 'A' - 10;
|
|
else
|
|
{
|
|
printf("pre-shared key not valid hex\n");
|
|
goto exit;
|
|
}
|
|
psk[ j / 2 ] |= c;
|
|
}
|
|
}
|
|
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
|
|
|
|
#if defined(POLARSSL_SSL_ALPN)
|
|
if( opt.alpn_string != NULL )
|
|
{
|
|
p = (char *) opt.alpn_string;
|
|
i = 0;
|
|
|
|
/* Leave room for a final NULL in alpn_list */
|
|
while( i < (int) sizeof alpn_list - 1 && *p != '\0' )
|
|
{
|
|
alpn_list[i++] = p;
|
|
|
|
/* Terminate the current string and move on to next one */
|
|
while( *p != ',' && *p != '\0' )
|
|
p++;
|
|
if( *p == ',' )
|
|
*p++ = '\0';
|
|
}
|
|
}
|
|
#endif /* POLARSSL_SSL_ALPN */
|
|
|
|
/*
|
|
* 0. Initialize the RNG and the session data
|
|
*/
|
|
printf( "\n . Seeding the random number generator..." );
|
|
fflush( stdout );
|
|
|
|
entropy_init( &entropy );
|
|
if( ( ret = ctr_drbg_init( &ctr_drbg, entropy_func, &entropy,
|
|
(const unsigned char *) pers,
|
|
strlen( pers ) ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ctr_drbg_init returned -0x%x\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
|
|
#if defined(POLARSSL_X509_CRT_PARSE_C)
|
|
/*
|
|
* 1.1. Load the trusted CA
|
|
*/
|
|
printf( " . Loading the CA root certificate ..." );
|
|
fflush( stdout );
|
|
|
|
#if defined(POLARSSL_FS_IO)
|
|
if( strlen( opt.ca_path ) )
|
|
if( strcmp( opt.ca_path, "none" ) == 0 )
|
|
ret = 0;
|
|
else
|
|
ret = x509_crt_parse_path( &cacert, opt.ca_path );
|
|
else if( strlen( opt.ca_file ) )
|
|
if( strcmp( opt.ca_file, "none" ) == 0 )
|
|
ret = 0;
|
|
else
|
|
ret = x509_crt_parse_file( &cacert, opt.ca_file );
|
|
else
|
|
#endif
|
|
#if defined(POLARSSL_CERTS_C)
|
|
ret = x509_crt_parse( &cacert, (const unsigned char *) test_ca_list,
|
|
strlen( test_ca_list ) );
|
|
#else
|
|
{
|
|
ret = 1;
|
|
printf("POLARSSL_CERTS_C not defined.");
|
|
}
|
|
#endif
|
|
if( ret < 0 )
|
|
{
|
|
printf( " failed\n ! x509_crt_parse returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
printf( " ok (%d skipped)\n", ret );
|
|
|
|
/*
|
|
* 1.2. Load own certificate and private key
|
|
*
|
|
* (can be skipped if client authentication is not required)
|
|
*/
|
|
printf( " . Loading the client cert. and key..." );
|
|
fflush( stdout );
|
|
|
|
#if defined(POLARSSL_FS_IO)
|
|
if( strlen( opt.crt_file ) )
|
|
if( strcmp( opt.crt_file, "none" ) == 0 )
|
|
ret = 0;
|
|
else
|
|
ret = x509_crt_parse_file( &clicert, opt.crt_file );
|
|
else
|
|
#endif
|
|
#if defined(POLARSSL_CERTS_C)
|
|
ret = x509_crt_parse( &clicert, (const unsigned char *) test_cli_crt,
|
|
strlen( test_cli_crt ) );
|
|
#else
|
|
{
|
|
ret = 1;
|
|
printf("POLARSSL_CERTS_C not defined.");
|
|
}
|
|
#endif
|
|
if( ret != 0 )
|
|
{
|
|
printf( " failed\n ! x509_crt_parse returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
#if defined(POLARSSL_FS_IO)
|
|
if( strlen( opt.key_file ) )
|
|
if( strcmp( opt.key_file, "none" ) == 0 )
|
|
ret = 0;
|
|
else
|
|
ret = pk_parse_keyfile( &pkey, opt.key_file, "" );
|
|
else
|
|
#endif
|
|
#if defined(POLARSSL_CERTS_C)
|
|
ret = pk_parse_key( &pkey, (const unsigned char *) test_cli_key,
|
|
strlen( test_cli_key ), NULL, 0 );
|
|
#else
|
|
{
|
|
ret = 1;
|
|
printf("POLARSSL_CERTS_C not defined.");
|
|
}
|
|
#endif
|
|
if( ret != 0 )
|
|
{
|
|
printf( " failed\n ! pk_parse_key returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
#endif /* POLARSSL_X509_CRT_PARSE_C */
|
|
|
|
/*
|
|
* 2. Start the connection
|
|
*/
|
|
if( opt.server_addr == NULL)
|
|
opt.server_addr = opt.server_name;
|
|
|
|
printf( " . Connecting to tcp/%s/%-4d...", opt.server_addr,
|
|
opt.server_port );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = net_connect( &server_fd, opt.server_addr,
|
|
opt.server_port, NET_PROTO_TCP ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! net_connect returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
if( opt.nbio > 0 )
|
|
ret = net_set_nonblock( server_fd );
|
|
else
|
|
ret = net_set_block( server_fd );
|
|
if( ret != 0 )
|
|
{
|
|
printf( " failed\n ! net_set_(non)block() returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
|
|
/*
|
|
* 3. Setup stuff
|
|
*/
|
|
printf( " . Setting up the SSL/TLS structure..." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = ssl_init( &ssl ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_init returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
|
|
#if defined(POLARSSL_X509_CRT_PARSE_C)
|
|
if( opt.debug_level > 0 )
|
|
ssl_set_verify( &ssl, my_verify, NULL );
|
|
#endif
|
|
|
|
ssl_set_endpoint( &ssl, SSL_IS_CLIENT );
|
|
ssl_set_authmode( &ssl, opt.auth_mode );
|
|
|
|
if( ( ret = ssl_set_transport( &ssl, opt.transport ) ) != 0 )
|
|
{
|
|
printf( "selected transport is not available\n" );
|
|
goto exit;
|
|
}
|
|
|
|
#if defined(POLARSSL_SSL_MAX_FRAGMENT_LENGTH)
|
|
if( ( ret = ssl_set_max_frag_len( &ssl, opt.mfl_code ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_set_max_frag_len returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
#if defined(POLARSSL_SSL_TRUNCATED_HMAC)
|
|
if( opt.trunc_hmac != 0 )
|
|
if( ( ret = ssl_set_truncated_hmac( &ssl, SSL_TRUNC_HMAC_ENABLED ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_set_truncated_hmac returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
#if defined(POLARSSL_SSL_ALPN)
|
|
if( opt.alpn_string != NULL )
|
|
if( ( ret = ssl_set_alpn_protocols( &ssl, alpn_list ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_set_alpn_protocols returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
ssl_set_rng( &ssl, ctr_drbg_random, &ctr_drbg );
|
|
ssl_set_dbg( &ssl, my_debug, stdout );
|
|
|
|
if( opt.nbio == 2 )
|
|
ssl_set_bio( &ssl, my_recv, &server_fd, my_send, &server_fd );
|
|
else
|
|
ssl_set_bio( &ssl, net_recv, &server_fd, net_send, &server_fd );
|
|
|
|
#if defined(POLARSSL_SSL_SESSION_TICKETS)
|
|
if( ( ret = ssl_set_session_tickets( &ssl, opt.tickets ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_set_session_tickets returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
|
|
ssl_set_ciphersuites( &ssl, opt.force_ciphersuite );
|
|
|
|
ssl_set_renegotiation( &ssl, opt.renegotiation );
|
|
ssl_legacy_renegotiation( &ssl, opt.allow_legacy );
|
|
|
|
#if defined(POLARSSL_X509_CRT_PARSE_C)
|
|
if( strcmp( opt.ca_path, "none" ) != 0 &&
|
|
strcmp( opt.ca_file, "none" ) != 0 )
|
|
{
|
|
ssl_set_ca_chain( &ssl, &cacert, NULL, opt.server_name );
|
|
}
|
|
if( strcmp( opt.crt_file, "none" ) != 0 &&
|
|
strcmp( opt.key_file, "none" ) != 0 )
|
|
{
|
|
if( ( ret = ssl_set_own_cert( &ssl, &clicert, &pkey ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_set_own_cert returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
|
|
if( ( ret = ssl_set_psk( &ssl, psk, psk_len,
|
|
(const unsigned char *) opt.psk_identity,
|
|
strlen( opt.psk_identity ) ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_set_psk returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
#if defined(POLARSSL_SSL_SERVER_NAME_INDICATION)
|
|
if( ( ret = ssl_set_hostname( &ssl, opt.server_name ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_set_hostname returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
#endif
|
|
|
|
if( opt.min_version != -1 )
|
|
{
|
|
ret = ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, opt.min_version );
|
|
if( ret != 0 )
|
|
{
|
|
printf( " selected min_version is not available\n" );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
if( opt.max_version != -1 )
|
|
{
|
|
ret = ssl_set_max_version( &ssl, SSL_MAJOR_VERSION_3, opt.max_version );
|
|
if( ret != 0 )
|
|
{
|
|
printf( " selected max_version is not available\n" );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 4. Handshake
|
|
*/
|
|
printf( " . Performing the SSL/TLS handshake..." );
|
|
fflush( stdout );
|
|
|
|
while( ( ret = ssl_handshake( &ssl ) ) != 0 )
|
|
{
|
|
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
|
|
{
|
|
printf( " failed\n ! ssl_handshake returned -0x%x\n", -ret );
|
|
if( ret == POLARSSL_ERR_X509_CERT_VERIFY_FAILED )
|
|
printf(
|
|
" Unable to verify the server's certificate. "
|
|
"Either it is invalid,\n"
|
|
" or you didn't set ca_file or ca_path "
|
|
"to an appropriate value.\n"
|
|
" Alternatively, you may want to use "
|
|
"auth_mode=optional for testing purposes.\n" );
|
|
printf( "\n" );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
printf( " ok\n [ Protocol is %s ]\n [ Ciphersuite is %s ]\n",
|
|
ssl_get_version( &ssl ), ssl_get_ciphersuite( &ssl ) );
|
|
|
|
#if defined(POLARSSL_SSL_ALPN)
|
|
if( opt.alpn_string != NULL )
|
|
{
|
|
const char *alp = ssl_get_alpn_protocol( &ssl );
|
|
printf( " [ Application Layer Protocol is %s ]\n",
|
|
alp ? alp : "(none)" );
|
|
}
|
|
#endif
|
|
|
|
if( opt.reconnect != 0 )
|
|
{
|
|
printf(" . Saving session for reuse..." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = ssl_get_session( &ssl, &saved_session ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_get_session returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
}
|
|
|
|
#if defined(POLARSSL_X509_CRT_PARSE_C)
|
|
/*
|
|
* 5. Verify the server certificate
|
|
*/
|
|
printf( " . Verifying peer X.509 certificate..." );
|
|
|
|
if( ( ret = ssl_get_verify_result( &ssl ) ) != 0 )
|
|
{
|
|
printf( " failed\n" );
|
|
|
|
if( ( ret & BADCERT_EXPIRED ) != 0 )
|
|
printf( " ! server certificate has expired\n" );
|
|
|
|
if( ( ret & BADCERT_REVOKED ) != 0 )
|
|
printf( " ! server certificate has been revoked\n" );
|
|
|
|
if( ( ret & BADCERT_CN_MISMATCH ) != 0 )
|
|
printf( " ! CN mismatch (expected CN=%s)\n", opt.server_name );
|
|
|
|
if( ( ret & BADCERT_NOT_TRUSTED ) != 0 )
|
|
printf( " ! self-signed or not signed by a trusted CA\n" );
|
|
|
|
printf( "\n" );
|
|
}
|
|
else
|
|
printf( " ok\n" );
|
|
|
|
if( ssl_get_peer_cert( &ssl ) != NULL )
|
|
{
|
|
printf( " . Peer certificate information ...\n" );
|
|
x509_crt_info( (char *) buf, sizeof( buf ) - 1, " ",
|
|
ssl_get_peer_cert( &ssl ) );
|
|
printf( "%s\n", buf );
|
|
}
|
|
#endif /* POLARSSL_X509_CRT_PARSE_C */
|
|
|
|
if( opt.renegotiate )
|
|
{
|
|
/*
|
|
* Perform renegotiation (this must be done when the server is waiting
|
|
* for input from our side).
|
|
*/
|
|
printf( " . Performing renegotiation..." );
|
|
fflush( stdout );
|
|
while( ( ret = ssl_renegotiate( &ssl ) ) != 0 )
|
|
{
|
|
if( ret != POLARSSL_ERR_NET_WANT_READ &&
|
|
ret != POLARSSL_ERR_NET_WANT_WRITE )
|
|
{
|
|
printf( " failed\n ! ssl_renegotiate returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
printf( " ok\n" );
|
|
}
|
|
|
|
/*
|
|
* 6. Write the GET request
|
|
*/
|
|
send_request:
|
|
printf( " > Write to server:" );
|
|
fflush( stdout );
|
|
|
|
len = snprintf( (char *) buf, sizeof(buf) - 1, GET_REQUEST,
|
|
opt.request_page );
|
|
tail_len = strlen( GET_REQUEST_END );
|
|
|
|
/* Add padding to GET request to reach opt.request_size in length */
|
|
if( opt.request_size != DFL_REQUEST_SIZE &&
|
|
len + tail_len < opt.request_size )
|
|
{
|
|
memset( buf + len, 'A', opt.request_size - len - tail_len );
|
|
len += opt.request_size - len - tail_len;
|
|
}
|
|
|
|
strncpy( (char *) buf + len, GET_REQUEST_END, sizeof(buf) - len - 1 );
|
|
len += tail_len;
|
|
|
|
/* Truncate if request size is smaller than the "natural" size */
|
|
if( opt.request_size != DFL_REQUEST_SIZE &&
|
|
len > opt.request_size )
|
|
{
|
|
len = opt.request_size;
|
|
|
|
/* Still end with \r\n unless that's really not possible */
|
|
if( len >= 2 ) buf[len - 2] = '\r';
|
|
if( len >= 1 ) buf[len - 1] = '\n';
|
|
}
|
|
|
|
for( written = 0, frags = 0; written < len; written += ret, frags++ )
|
|
{
|
|
while( ( ret = ssl_write( &ssl, buf + written, len - written ) ) <= 0 )
|
|
{
|
|
if( ret != POLARSSL_ERR_NET_WANT_READ && ret != POLARSSL_ERR_NET_WANT_WRITE )
|
|
{
|
|
printf( " failed\n ! ssl_write returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
}
|
|
|
|
buf[written] = '\0';
|
|
printf( " %d bytes written in %d fragments\n\n%s\n", written, frags, (char *) buf );
|
|
|
|
/*
|
|
* 7. Read the HTTP response
|
|
*/
|
|
printf( " < Read from server:" );
|
|
fflush( stdout );
|
|
|
|
do
|
|
{
|
|
len = sizeof( buf ) - 1;
|
|
memset( buf, 0, sizeof( buf ) );
|
|
ret = ssl_read( &ssl, buf, len );
|
|
|
|
if( ret == POLARSSL_ERR_NET_WANT_READ ||
|
|
ret == POLARSSL_ERR_NET_WANT_WRITE )
|
|
continue;
|
|
|
|
if( ret <= 0 )
|
|
{
|
|
switch( ret )
|
|
{
|
|
case POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY:
|
|
printf( " connection was closed gracefully\n" );
|
|
ret = 0;
|
|
goto close_notify;
|
|
|
|
case 0:
|
|
case POLARSSL_ERR_NET_CONN_RESET:
|
|
printf( " connection was reset by peer\n" );
|
|
ret = 0;
|
|
goto reconnect;
|
|
|
|
default:
|
|
printf( " ssl_read returned -0x%x\n", -ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
len = ret;
|
|
buf[len] = '\0';
|
|
printf( " %d bytes read\n\n%s", len, (char *) buf );
|
|
|
|
/* End of message should be detected according to the syntax of the
|
|
* application protocol (eg HTTP), just use a dummy test here. */
|
|
if( ret > 0 && buf[len-1] == '\n' )
|
|
{
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
while( 1 );
|
|
|
|
/*
|
|
* 7b. Continue doing data exchanges?
|
|
*/
|
|
if( --opt.exchanges > 0 )
|
|
goto send_request;
|
|
|
|
/*
|
|
* 8. Done, cleanly close the connection
|
|
*/
|
|
close_notify:
|
|
printf( " . Closing the connection..." );
|
|
|
|
while( ( ret = ssl_close_notify( &ssl ) ) < 0 )
|
|
{
|
|
if( ret == POLARSSL_ERR_NET_CONN_RESET )
|
|
{
|
|
printf( " ok (already closed by peer)\n" );
|
|
ret = 0;
|
|
goto reconnect;
|
|
}
|
|
|
|
if( ret != POLARSSL_ERR_NET_WANT_READ &&
|
|
ret != POLARSSL_ERR_NET_WANT_WRITE )
|
|
{
|
|
printf( " failed\n ! ssl_close_notify returned %d\n\n", ret );
|
|
goto reconnect;
|
|
}
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
|
|
/*
|
|
* 9. Reconnect?
|
|
*/
|
|
reconnect:
|
|
if( opt.reconnect != 0 )
|
|
{
|
|
--opt.reconnect;
|
|
|
|
net_close( server_fd );
|
|
|
|
#if defined(POLARSSL_TIMING_C)
|
|
if( opt.reco_delay > 0 )
|
|
m_sleep( 1000 * opt.reco_delay );
|
|
#endif
|
|
|
|
printf( " . Reconnecting with saved session..." );
|
|
fflush( stdout );
|
|
|
|
if( ( ret = ssl_session_reset( &ssl ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_session_reset returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
if( ( ret = ssl_set_session( &ssl, &saved_session ) ) != 0 )
|
|
{
|
|
printf( " failed\n ! ssl_set_session returned %d\n\n", ret );
|
|
goto exit;
|
|
}
|
|
|
|
if( ( ret = net_connect( &server_fd, opt.server_name,
|
|
opt.server_port , NET_PROTO_TCP) ) != 0 )
|
|
{
|
|
printf( " failed\n ! net_connect returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
|
|
while( ( ret = ssl_handshake( &ssl ) ) != 0 )
|
|
{
|
|
if( ret != POLARSSL_ERR_NET_WANT_READ &&
|
|
ret != POLARSSL_ERR_NET_WANT_WRITE )
|
|
{
|
|
printf( " failed\n ! ssl_handshake returned -0x%x\n\n", -ret );
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
printf( " ok\n" );
|
|
|
|
goto send_request;
|
|
}
|
|
|
|
/*
|
|
* Cleanup and exit
|
|
*/
|
|
exit:
|
|
#ifdef POLARSSL_ERROR_C
|
|
if( ret != 0 )
|
|
{
|
|
char error_buf[100];
|
|
polarssl_strerror( ret, error_buf, 100 );
|
|
printf("Last error was: -0x%X - %s\n\n", -ret, error_buf );
|
|
}
|
|
#endif
|
|
|
|
if( server_fd )
|
|
net_close( server_fd );
|
|
|
|
#if defined(POLARSSL_X509_CRT_PARSE_C)
|
|
x509_crt_free( &clicert );
|
|
x509_crt_free( &cacert );
|
|
pk_free( &pkey );
|
|
#endif
|
|
ssl_session_free( &saved_session );
|
|
ssl_free( &ssl );
|
|
ctr_drbg_free( &ctr_drbg );
|
|
entropy_free( &entropy );
|
|
|
|
#if defined(_WIN32)
|
|
printf( " + Press Enter to exit this program.\n" );
|
|
fflush( stdout ); getchar();
|
|
#endif
|
|
|
|
// Shell can not handle large exit numbers -> 1 for errors
|
|
if( ret < 0 )
|
|
ret = 1;
|
|
|
|
return( ret );
|
|
}
|
|
#endif /* POLARSSL_BIGNUM_C && POLARSSL_ENTROPY_C && POLARSSL_SSL_TLS_C &&
|
|
POLARSSL_SSL_CLI_C && POLARSSL_NET_C && POLARSSL_RSA_C &&
|
|
POLARSSL_CTR_DRBG_C */
|