| /* |
| * SSL client with certificate authentication |
| * |
| * Copyright (C) 2006-2013, ARM Limited, All Rights Reserved |
| * |
| * This file is part of mbed TLS (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 -2 |
| #define DFL_RENEGOTIATE 0 |
| #define DFL_EXCHANGES 1 |
| #define DFL_MIN_VERSION SSL_MINOR_VERSION_1 |
| #define DFL_MAX_VERSION -1 |
| #define DFL_ARC4 SSL_ARC4_DISABLED |
| #define DFL_AUTH_MODE SSL_VERIFY_REQUIRED |
| #define DFL_MFL_CODE SSL_MAX_FRAG_LEN_NONE |
| #define DFL_TRUNC_HMAC -1 |
| #define DFL_RECSPLIT -1 |
| #define DFL_RECONNECT 0 |
| #define DFL_RECO_DELAY 0 |
| #define DFL_TICKETS SSL_SESSION_TICKETS_ENABLED |
| #define DFL_ALPN_STRING NULL |
| #define DFL_FALLBACK -1 |
| #define DFL_EXTENDED_MS -1 |
| #define DFL_ETM -1 |
| |
| #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 arc4; /* flag for arc4 suites support */ |
| 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 recsplit; /* enable record splitting? */ |
| 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 fallback; /* is this a fallback connection? */ |
| int extended_ms; /* negotiate extended master secret? */ |
| int etm; /* negotiate encrypt then mac? */ |
| } 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: library default\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_SSL_CBC_RECORD_SPLITTING) |
| #define USAGE_RECSPLIT \ |
| " recplit=%%d default: (library default)\n" |
| #else |
| #define USAGE_RECSPLIT |
| #endif |
| |
| #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 */ |
| |
| #if defined(POLARSSL_SSL_FALLBACK_SCSV) |
| #define USAGE_FALLBACK \ |
| " fallback=0/1 default: (library default: off)\n" |
| #else |
| #define USAGE_FALLBACK "" |
| #endif |
| |
| #if defined(POLARSSL_SSL_EXTENDED_MASTER_SECRET) |
| #define USAGE_EMS \ |
| " extended_ms=0/1 default: (library default: on)\n" |
| #else |
| #define USAGE_EMS "" |
| #endif |
| |
| #if defined(POLARSSL_SSL_ENCRYPT_THEN_MAC) |
| #define USAGE_ETM \ |
| " etm=0/1 default: (library default: on)\n" |
| #else |
| #define USAGE_ETM "" |
| #endif |
| |
| #if defined(POLARSSL_SSL_RENEGOTIATION) |
| #define USAGE_RENEGO \ |
| " renegotiation=%%d default: 0 (disabled)\n" \ |
| " renegotiate=%%d default: 0 (disabled)\n" |
| #else |
| #define USAGE_RENEGO "" |
| #endif |
| |
| #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" \ |
| " 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" \ |
| " allow_legacy=%%d default: (library default: no)\n" \ |
| USAGE_RENEGO \ |
| " exchanges=%%d default: 1\n" \ |
| " reconnect=%%d default: 0 (disabled)\n" \ |
| USAGE_TIME \ |
| USAGE_TICKETS \ |
| USAGE_MAX_FRAG_LEN \ |
| USAGE_TRUNC_HMAC \ |
| USAGE_ALPN \ |
| USAGE_FALLBACK \ |
| USAGE_EMS \ |
| USAGE_ETM \ |
| USAGE_RECSPLIT \ |
| "\n" \ |
| " min_version=%%s default: \"\" (ssl3)\n" \ |
| " max_version=%%s default: \"\" (tls1_2)\n" \ |
| " arc4=%%d default: 0 (disabled)\n" \ |
| " force_version=%%s default: \"\" (none)\n" \ |
| " options: ssl3, tls1, tls1_1, tls1_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.arc4 = DFL_ARC4; |
| opt.auth_mode = DFL_AUTH_MODE; |
| opt.mfl_code = DFL_MFL_CODE; |
| opt.trunc_hmac = DFL_TRUNC_HMAC; |
| opt.recsplit = DFL_RECSPLIT; |
| opt.reconnect = DFL_RECONNECT; |
| opt.reco_delay = DFL_RECO_DELAY; |
| opt.tickets = DFL_TICKETS; |
| opt.alpn_string = DFL_ALPN_STRING; |
| opt.fallback = DFL_FALLBACK; |
| opt.extended_ms = DFL_EXTENDED_MS; |
| opt.etm = DFL_ETM; |
| |
| 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, "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 ) |
| { |
| switch( atoi( q ) ) |
| { |
| case -1: opt.allow_legacy = SSL_LEGACY_BREAK_HANDSHAKE; break; |
| case 0: opt.allow_legacy = SSL_LEGACY_NO_RENEGOTIATION; break; |
| case 1: opt.allow_legacy = SSL_LEGACY_ALLOW_RENEGOTIATION; break; |
| default: 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, "fallback" ) == 0 ) |
| { |
| switch( atoi( q ) ) |
| { |
| case 0: opt.fallback = SSL_IS_NOT_FALLBACK; break; |
| case 1: opt.fallback = SSL_IS_FALLBACK; break; |
| default: goto usage; |
| } |
| } |
| else if( strcmp( p, "extended_ms" ) == 0 ) |
| { |
| switch( atoi( q ) ) |
| { |
| case 0: opt.extended_ms = SSL_EXTENDED_MS_DISABLED; break; |
| case 1: opt.extended_ms = SSL_EXTENDED_MS_ENABLED; break; |
| default: goto usage; |
| } |
| } |
| else if( strcmp( p, "etm" ) == 0 ) |
| { |
| switch( atoi( q ) ) |
| { |
| case 0: opt.etm = SSL_ETM_DISABLED; break; |
| case 1: opt.etm = SSL_ETM_ENABLED; break; |
| default: goto usage; |
| } |
| } |
| 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 ) |
| opt.min_version = SSL_MINOR_VERSION_2; |
| else if( strcmp( q, "tls1_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 ) |
| opt.max_version = SSL_MINOR_VERSION_2; |
| else if( strcmp( q, "tls1_2" ) == 0 ) |
| opt.max_version = SSL_MINOR_VERSION_3; |
| else |
| goto usage; |
| } |
| else if( strcmp( p, "arc4" ) == 0 ) |
| { |
| switch( atoi( q ) ) |
| { |
| case 0: opt.arc4 = SSL_ARC4_DISABLED; break; |
| case 1: opt.arc4 = SSL_ARC4_ENABLED; break; |
| default: 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 ) |
| { |
| opt.min_version = SSL_MINOR_VERSION_2; |
| opt.max_version = SSL_MINOR_VERSION_2; |
| } |
| else if( strcmp( q, "tls1_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 ) |
| { |
| switch( atoi( q ) ) |
| { |
| case 0: opt.trunc_hmac = SSL_TRUNC_HMAC_DISABLED; break; |
| case 1: opt.trunc_hmac = SSL_TRUNC_HMAC_ENABLED; break; |
| default: goto usage; |
| } |
| } |
| else if( strcmp( p, "recsplit" ) == 0 ) |
| { |
| opt.recsplit = atoi( q ); |
| if( opt.recsplit < 0 || opt.recsplit > 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 ) ) != 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 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 != DFL_TRUNC_HMAC ) |
| ssl_set_truncated_hmac( &ssl, opt.trunc_hmac ); |
| #endif |
| |
| #if defined(POLARSSL_SSL_EXTENDED_MASTER_SECRET) |
| if( opt.extended_ms != DFL_EXTENDED_MS ) |
| ssl_set_extended_master_secret( &ssl, opt.extended_ms ); |
| #endif |
| |
| #if defined(POLARSSL_SSL_ENCRYPT_THEN_MAC) |
| if( opt.etm != DFL_ETM ) |
| ssl_set_encrypt_then_mac( &ssl, opt.etm ); |
| #endif |
| |
| #if defined(POLARSSL_SSL_CBC_RECORD_SPLITTING) |
| if( opt.recsplit != DFL_RECSPLIT ) |
| ssl_set_cbc_record_splitting( &ssl, opt.recsplit |
| ? SSL_CBC_RECORD_SPLITTING_ENABLED |
| : SSL_CBC_RECORD_SPLITTING_DISABLED ); |
| #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 |
| |
| /* RC4 setting is redundant if we use only one ciphersuite */ |
| if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER ) |
| ssl_set_ciphersuites( &ssl, opt.force_ciphersuite ); |
| else |
| ssl_set_arc4_support( &ssl, opt.arc4 ); |
| |
| if( opt.allow_legacy != DFL_ALLOW_LEGACY ) |
| ssl_legacy_renegotiation( &ssl, opt.allow_legacy ); |
| #if defined(POLARSSL_SSL_RENEGOTIATION) |
| ssl_set_renegotiation( &ssl, opt.renegotiation ); |
| #endif |
| |
| #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 ) |
| ssl_set_min_version( &ssl, SSL_MAJOR_VERSION_3, opt.min_version ); |
| if( opt.max_version != -1 ) |
| ssl_set_max_version( &ssl, SSL_MAJOR_VERSION_3, opt.max_version ); |
| #if defined(POLARSSL_SSL_FALLBACK_SCSV) |
| if( opt.fallback != DFL_FALLBACK ) |
| ssl_set_fallback( &ssl, opt.fallback ); |
| #endif |
| |
| /* |
| * 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 defined(POLARSSL_SSL_RENEGOTIATION) |
| 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" ); |
| } |
| #endif /* POLARSSL_SSL_RENEGOTIATION */ |
| |
| /* |
| * 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..." ); |
| |
| /* No error checking, the connection might be closed already */ |
| do ret = ssl_close_notify( &ssl ); |
| while( ret == POLARSSL_ERR_NET_WANT_WRITE ); |
| ret = 0; |
| |
| printf( " done\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_addr, |
| opt.server_port ) ) != 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 */ |
