diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/external/mbedtls/programs/ssl/ssl_server2.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/external/mbedtls/programs/ssl/ssl_server2.c | 2361 |
1 files changed, 2361 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/mbedtls/programs/ssl/ssl_server2.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/mbedtls/programs/ssl/ssl_server2.c new file mode 100644 index 0000000..96bd35f --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/mbedtls/programs/ssl/ssl_server2.c @@ -0,0 +1,2361 @@ +/* + * SSL client with options + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include <stdio.h> +#include <stdlib.h> +#define mbedtls_free free +#define mbedtls_time time +#define mbedtls_time_t time_t +#define mbedtls_calloc calloc +#define mbedtls_fprintf fprintf +#define mbedtls_printf printf +#endif + +#if !defined(MBEDTLS_ENTROPY_C) || \ + !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_SRV_C) || \ + !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_CTR_DRBG_C) +int main( void ) +{ + mbedtls_printf("MBEDTLS_ENTROPY_C and/or " + "MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_SRV_C and/or " + "MBEDTLS_NET_C and/or MBEDTLS_CTR_DRBG_C and/or not defined.\n"); + return( 0 ); +} +#else + +#include "mbedtls/net_sockets.h" +#include "mbedtls/ssl.h" +#include "mbedtls/entropy.h" +#include "mbedtls/ctr_drbg.h" +#include "mbedtls/certs.h" +#include "mbedtls/x509.h" +#include "mbedtls/error.h" +#include "mbedtls/debug.h" +#include "mbedtls/timing.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdint.h> + +#if !defined(_MSC_VER) +#include <inttypes.h> +#endif + +#if !defined(_WIN32) +#include <signal.h> +#endif + +#if defined(MBEDTLS_SSL_CACHE_C) +#include "mbedtls/ssl_cache.h" +#endif + +#if defined(MBEDTLS_SSL_TICKET_C) +#include "mbedtls/ssl_ticket.h" +#endif + +#if defined(MBEDTLS_SSL_COOKIE_C) +#include "mbedtls/ssl_cookie.h" +#endif + +#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) +#include "mbedtls/memory_buffer_alloc.h" +#endif + +#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && defined(MBEDTLS_FS_IO) +#define SNI_OPTION +#endif + +#if defined(_WIN32) +#include <windows.h> +#endif + +#define DFL_SERVER_ADDR NULL +#define DFL_SERVER_PORT "4433" +#define DFL_DEBUG_LEVEL 0 +#define DFL_NBIO 0 +#define DFL_READ_TIMEOUT 0 +#define DFL_CA_FILE "" +#define DFL_CA_PATH "" +#define DFL_CRT_FILE "" +#define DFL_KEY_FILE "" +#define DFL_CRT_FILE2 "" +#define DFL_KEY_FILE2 "" +#define DFL_PSK "" +#define DFL_PSK_IDENTITY "Client_identity" +#define DFL_ECJPAKE_PW NULL +#define DFL_PSK_LIST NULL +#define DFL_FORCE_CIPHER 0 +#define DFL_VERSION_SUITES NULL +#define DFL_RENEGOTIATION MBEDTLS_SSL_RENEGOTIATION_DISABLED +#define DFL_ALLOW_LEGACY -2 +#define DFL_RENEGOTIATE 0 +#define DFL_RENEGO_DELAY -2 +#define DFL_RENEGO_PERIOD ( (uint64_t)-1 ) +#define DFL_EXCHANGES 1 +#define DFL_MIN_VERSION -1 +#define DFL_MAX_VERSION -1 +#define DFL_ARC4 -1 +#define DFL_AUTH_MODE -1 +#define DFL_MFL_CODE MBEDTLS_SSL_MAX_FRAG_LEN_NONE +#define DFL_TRUNC_HMAC -1 +#define DFL_TICKETS MBEDTLS_SSL_SESSION_TICKETS_ENABLED +#define DFL_TICKET_TIMEOUT 86400 +#define DFL_CACHE_MAX -1 +#define DFL_CACHE_TIMEOUT -1 +#define DFL_SNI NULL +#define DFL_ALPN_STRING NULL +#define DFL_DHM_FILE NULL +#define DFL_TRANSPORT MBEDTLS_SSL_TRANSPORT_STREAM +#define DFL_COOKIES 1 +#define DFL_ANTI_REPLAY -1 +#define DFL_HS_TO_MIN 0 +#define DFL_HS_TO_MAX 0 +#define DFL_BADMAC_LIMIT -1 +#define DFL_EXTENDED_MS -1 +#define DFL_ETM -1 + +#define LONG_RESPONSE "<p>01-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n" \ + "02-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n" \ + "03-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n" \ + "04-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n" \ + "05-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n" \ + "06-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah\r\n" \ + "07-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah</p>\r\n" + +/* Uncomment LONG_RESPONSE at the end of HTTP_RESPONSE to test sending longer + * packets (for fragmentation purposes) */ +#define HTTP_RESPONSE \ + "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n" \ + "<h2>mbed TLS Test Server</h2>\r\n" \ + "<p>Successful connection using: %s</p>\r\n" // LONG_RESPONSE + +/* + * Size of the basic I/O buffer. Able to hold our default response. + * + * You will need to adapt the mbedtls_ssl_get_bytes_avail() test in ssl-opt.sh + * if you change this value to something outside the range <= 100 or > 500 + */ +#define IO_BUF_LEN 200 + +#if defined(MBEDTLS_X509_CRT_PARSE_C) +#if defined(MBEDTLS_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: see note after key_file2\n" \ + " key_file=%%s default: see note after key_file2\n" \ + " crt_file2=%%s Your second cert and chain (in bottom to top order, top may be omitted)\n" \ + " default: see note after key_file2\n" \ + " key_file2=%%s default: see note below\n" \ + " note: if neither crt_file/key_file nor crt_file2/key_file2 are used,\n" \ + " preloaded certificate(s) and key(s) are used if available\n" \ + " dhm_file=%%s File containing Diffie-Hellman parameters\n" \ + " default: preloaded parameters\n" +#else +#define USAGE_IO \ + "\n" \ + " No file operations available (MBEDTLS_FS_IO not defined)\n" \ + "\n" +#endif /* MBEDTLS_FS_IO */ +#else +#define USAGE_IO "" +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_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 /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) +#define USAGE_TICKETS \ + " tickets=%%d default: 1 (enabled)\n" \ + " ticket_timeout=%%d default: 86400 (one day)\n" +#else +#define USAGE_TICKETS "" +#endif /* MBEDTLS_SSL_SESSION_TICKETS */ + +#if defined(MBEDTLS_SSL_CACHE_C) +#define USAGE_CACHE \ + " cache_max=%%d default: cache default (50)\n" \ + " cache_timeout=%%d default: cache default (1d)\n" +#else +#define USAGE_CACHE "" +#endif /* MBEDTLS_SSL_CACHE_C */ + +#if defined(SNI_OPTION) +#define USAGE_SNI \ + " sni=%%s name1,cert1,key1,ca1,crl1,auth1[,...]\n" \ + " default: disabled\n" +#else +#define USAGE_SNI "" +#endif /* SNI_OPTION */ + +#if defined(MBEDTLS_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 /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */ + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) +#define USAGE_TRUNC_HMAC \ + " trunc_hmac=%%d default: library default\n" +#else +#define USAGE_TRUNC_HMAC "" +#endif + +#if defined(MBEDTLS_SSL_ALPN) +#define USAGE_ALPN \ + " alpn=%%s default: \"\" (disabled)\n" \ + " example: spdy/1,http/1.1\n" +#else +#define USAGE_ALPN "" +#endif /* MBEDTLS_SSL_ALPN */ + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) +#define USAGE_COOKIES \ + " cookies=0/1/-1 default: 1 (enabled)\n" \ + " 0: disabled, -1: library default (broken)\n" +#else +#define USAGE_COOKIES "" +#endif + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) +#define USAGE_ANTI_REPLAY \ + " anti_replay=0/1 default: (library default: enabled)\n" +#else +#define USAGE_ANTI_REPLAY "" +#endif + +#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) +#define USAGE_BADMAC_LIMIT \ + " badmac_limit=%%d default: (library default: disabled)\n" +#else +#define USAGE_BADMAC_LIMIT "" +#endif + +#if defined(MBEDTLS_SSL_PROTO_DTLS) +#define USAGE_DTLS \ + " dtls=%%d default: 0 (TLS)\n" \ + " hs_timeout=%%d-%%d default: (library default: 1000-60000)\n" \ + " range of DTLS handshake timeouts in millisecs\n" +#else +#define USAGE_DTLS "" +#endif + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) +#define USAGE_EMS \ + " extended_ms=0/1 default: (library default: on)\n" +#else +#define USAGE_EMS "" +#endif + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) +#define USAGE_ETM \ + " etm=0/1 default: (library default: on)\n" +#else +#define USAGE_ETM "" +#endif + +#if defined(MBEDTLS_SSL_RENEGOTIATION) +#define USAGE_RENEGO \ + " renegotiation=%%d default: 0 (disabled)\n" \ + " renegotiate=%%d default: 0 (disabled)\n" \ + " renego_delay=%%d default: -2 (library default)\n" \ + " renego_period=%%d default: (2^64 - 1 for TLS, 2^48 - 1 for DTLS)\n" +#else +#define USAGE_RENEGO "" +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) +#define USAGE_ECJPAKE \ + " ecjpake_pw=%%s default: none (disabled)\n" +#else +#define USAGE_ECJPAKE "" +#endif + +#define USAGE \ + "\n usage: ssl_server2 param=<>...\n" \ + "\n acceptable parameters:\n" \ + " server_addr=%%d default: (all interfaces)\n" \ + " server_port=%%d default: 4433\n" \ + " debug_level=%%d default: 0 (disabled)\n" \ + " nbio=%%d default: 0 (blocking I/O)\n" \ + " options: 1 (non-blocking), 2 (added delays)\n" \ + " read_timeout=%%d default: 0 ms (no timeout)\n" \ + "\n" \ + USAGE_DTLS \ + USAGE_COOKIES \ + USAGE_ANTI_REPLAY \ + USAGE_BADMAC_LIMIT \ + "\n" \ + " auth_mode=%%s default: (library default: none)\n" \ + " options: none, optional, required\n" \ + USAGE_IO \ + USAGE_SNI \ + "\n" \ + USAGE_PSK \ + USAGE_ECJPAKE \ + "\n" \ + " allow_legacy=%%d default: (library default: no)\n" \ + USAGE_RENEGO \ + " exchanges=%%d default: 1\n" \ + "\n" \ + USAGE_TICKETS \ + USAGE_CACHE \ + USAGE_MAX_FRAG_LEN \ + USAGE_TRUNC_HMAC \ + USAGE_ALPN \ + USAGE_EMS \ + USAGE_ETM \ + "\n" \ + " arc4=%%d default: (library default: 0)\n" \ + " min_version=%%s default: (library default: tls1)\n" \ + " max_version=%%s default: (library default: tls1_2)\n" \ + " force_version=%%s default: \"\" (none)\n" \ + " options: ssl3, tls1, tls1_1, tls1_2, dtls1, dtls1_2\n" \ + "\n" \ + " version_suites=a,b,c,d per-version ciphersuites\n" \ + " in order from ssl3 to tls1_2\n" \ + " default: all enabled\n" \ + " force_ciphersuite=<name> default: all enabled\n" \ + " acceptable ciphersuite names:\n" + + +#define PUT_UINT64_BE(out_be,in_le,i) \ +{ \ + (out_be)[(i) + 0] = (unsigned char)( ( (in_le) >> 56 ) & 0xFF ); \ + (out_be)[(i) + 1] = (unsigned char)( ( (in_le) >> 48 ) & 0xFF ); \ + (out_be)[(i) + 2] = (unsigned char)( ( (in_le) >> 40 ) & 0xFF ); \ + (out_be)[(i) + 3] = (unsigned char)( ( (in_le) >> 32 ) & 0xFF ); \ + (out_be)[(i) + 4] = (unsigned char)( ( (in_le) >> 24 ) & 0xFF ); \ + (out_be)[(i) + 5] = (unsigned char)( ( (in_le) >> 16 ) & 0xFF ); \ + (out_be)[(i) + 6] = (unsigned char)( ( (in_le) >> 8 ) & 0xFF ); \ + (out_be)[(i) + 7] = (unsigned char)( ( (in_le) >> 0 ) & 0xFF ); \ +} + +/* + * global options + */ +struct options +{ + const char *server_addr; /* address on which the ssl service runs */ + const char *server_port; /* port on which the ssl service runs */ + int debug_level; /* level of debugging */ + int nbio; /* should I/O be blocking? */ + uint32_t read_timeout; /* timeout on mbedtls_ssl_read() in milliseconds */ + 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 server certificate */ + const char *key_file; /* the file with the server key */ + const char *crt_file2; /* the file with the 2nd server certificate */ + const char *key_file2; /* the file with the 2nd server key */ + const char *psk; /* the pre-shared key */ + const char *psk_identity; /* the pre-shared key identity */ + char *psk_list; /* list of PSK id/key pairs for callback */ + const char *ecjpake_pw; /* the EC J-PAKE password */ + int force_ciphersuite[2]; /* protocol/ciphersuite to use, or all */ + const char *version_suites; /* per-version ciphersuites */ + int renegotiation; /* enable / disable renegotiation */ + int allow_legacy; /* allow legacy renegotiation */ + int renegotiate; /* attempt renegotiation? */ + int renego_delay; /* delay before enforcing renegotiation */ + uint64_t renego_period; /* period for automatic 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; /* accept truncated hmac? */ + int tickets; /* enable / disable session tickets */ + int ticket_timeout; /* session ticket lifetime */ + int cache_max; /* max number of session cache entries */ + int cache_timeout; /* expiration delay of session cache entries */ + char *sni; /* string describing sni information */ + const char *alpn_string; /* ALPN supported protocols */ + const char *dhm_file; /* the file with the DH parameters */ + int extended_ms; /* allow negotiation of extended MS? */ + int etm; /* allow negotiation of encrypt-then-MAC? */ + int transport; /* TLS or DTLS? */ + int cookies; /* Use cookies for DTLS? -1 to break them */ + int anti_replay; /* Use anti-replay for DTLS? -1 for default */ + uint32_t hs_to_min; /* Initial value of DTLS handshake timer */ + uint32_t hs_to_max; /* Max value of DTLS handshake timer */ + int badmac_limit; /* Limit of records with bad MAC */ +} opt; + +static void my_debug( void *ctx, int level, + const char *file, int line, + const char *str ) +{ + const char *p, *basename; + + /* Extract basename from file */ + for( p = basename = file; *p != '\0'; p++ ) + if( *p == '/' || *p == '\\' ) + basename = p + 1; + + mbedtls_fprintf( (FILE *) ctx, "%s:%04d: |%d| %s", basename, line, level, 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( MBEDTLS_ERR_SSL_WANT_READ ); + } + + ret = mbedtls_net_recv( ctx, buf, len ); + if( ret != MBEDTLS_ERR_SSL_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( MBEDTLS_ERR_SSL_WANT_WRITE ); + } + + ret = mbedtls_net_send( ctx, buf, len ); + if( ret != MBEDTLS_ERR_SSL_WANT_WRITE ) + first_try = 1; /* Next call will be a new operation */ + return( ret ); +} + +/* + * Return authmode from string, or -1 on error + */ +static int get_auth_mode( const char *s ) +{ + if( strcmp( s, "none" ) == 0 ) + return( MBEDTLS_SSL_VERIFY_NONE ); + if( strcmp( s, "optional" ) == 0 ) + return( MBEDTLS_SSL_VERIFY_OPTIONAL ); + if( strcmp( s, "required" ) == 0 ) + return( MBEDTLS_SSL_VERIFY_REQUIRED ); + + return( -1 ); +} + +/* + * Used by sni_parse and psk_parse to handle coma-separated lists + */ +#define GET_ITEM( dst ) \ + dst = p; \ + while( *p != ',' ) \ + if( ++p > end ) \ + goto error; \ + *p++ = '\0'; + +#if defined(SNI_OPTION) +typedef struct _sni_entry sni_entry; + +struct _sni_entry { + const char *name; + mbedtls_x509_crt *cert; + mbedtls_pk_context *key; + mbedtls_x509_crt* ca; + mbedtls_x509_crl* crl; + int authmode; + sni_entry *next; +}; + +void sni_free( sni_entry *head ) +{ + sni_entry *cur = head, *next; + + while( cur != NULL ) + { + mbedtls_x509_crt_free( cur->cert ); + mbedtls_free( cur->cert ); + + mbedtls_pk_free( cur->key ); + mbedtls_free( cur->key ); + + mbedtls_x509_crt_free( cur->ca ); + mbedtls_free( cur->ca ); + + mbedtls_x509_crl_free( cur->crl ); + mbedtls_free( cur->crl ); + + next = cur->next; + mbedtls_free( cur ); + cur = next; + } +} + +/* + * Parse a string of sextuples name1,crt1,key1,ca1,crl1,auth1[,...] + * into a usable sni_entry list. For ca1, crl1, auth1, the special value + * '-' means unset. If ca1 is unset, then crl1 is ignored too. + * + * Modifies the input string! This is not production quality! + */ +sni_entry *sni_parse( char *sni_string ) +{ + sni_entry *cur = NULL, *new = NULL; + char *p = sni_string; + char *end = p; + char *crt_file, *key_file, *ca_file, *crl_file, *auth_str; + + while( *end != '\0' ) + ++end; + *end = ','; + + while( p <= end ) + { + if( ( new = mbedtls_calloc( 1, sizeof( sni_entry ) ) ) == NULL ) + { + sni_free( cur ); + return( NULL ); + } + + GET_ITEM( new->name ); + GET_ITEM( crt_file ); + GET_ITEM( key_file ); + GET_ITEM( ca_file ); + GET_ITEM( crl_file ); + GET_ITEM( auth_str ); + + if( ( new->cert = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ) ) == NULL || + ( new->key = mbedtls_calloc( 1, sizeof( mbedtls_pk_context ) ) ) == NULL ) + goto error; + + mbedtls_x509_crt_init( new->cert ); + mbedtls_pk_init( new->key ); + + if( mbedtls_x509_crt_parse_file( new->cert, crt_file ) != 0 || + mbedtls_pk_parse_keyfile( new->key, key_file, "" ) != 0 ) + goto error; + + if( strcmp( ca_file, "-" ) != 0 ) + { + if( ( new->ca = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) ) ) == NULL ) + goto error; + + mbedtls_x509_crt_init( new->ca ); + + if( mbedtls_x509_crt_parse_file( new->ca, ca_file ) != 0 ) + goto error; + } + + if( strcmp( crl_file, "-" ) != 0 ) + { + if( ( new->crl = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl ) ) ) == NULL ) + goto error; + + mbedtls_x509_crl_init( new->crl ); + + if( mbedtls_x509_crl_parse_file( new->crl, crl_file ) != 0 ) + goto error; + } + + if( strcmp( auth_str, "-" ) != 0 ) + { + if( ( new->authmode = get_auth_mode( auth_str ) ) < 0 ) + goto error; + } + else + new->authmode = DFL_AUTH_MODE; + + new->next = cur; + cur = new; + } + + return( cur ); + +error: + sni_free( new ); + sni_free( cur ); + return( NULL ); +} + +/* + * SNI callback. + */ +int sni_callback( void *p_info, mbedtls_ssl_context *ssl, + const unsigned char *name, size_t name_len ) +{ + const sni_entry *cur = (const sni_entry *) p_info; + + while( cur != NULL ) + { + if( name_len == strlen( cur->name ) && + memcmp( name, cur->name, name_len ) == 0 ) + { + if( cur->ca != NULL ) + mbedtls_ssl_set_hs_ca_chain( ssl, cur->ca, cur->crl ); + + if( cur->authmode != DFL_AUTH_MODE ) + mbedtls_ssl_set_hs_authmode( ssl, cur->authmode ); + + return( mbedtls_ssl_set_hs_own_cert( ssl, cur->cert, cur->key ) ); + } + + cur = cur->next; + } + + return( -1 ); +} + +#endif /* SNI_OPTION */ + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + +#define HEX2NUM( c ) \ + 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 \ + return( -1 ); + +/* + * Convert a hex string to bytes. + * Return 0 on success, -1 on error. + */ +int unhexify( unsigned char *output, const char *input, size_t *olen ) +{ + unsigned char c; + size_t j; + + *olen = strlen( input ); + if( *olen % 2 != 0 || *olen / 2 > MBEDTLS_PSK_MAX_LEN ) + return( -1 ); + *olen /= 2; + + for( j = 0; j < *olen * 2; j += 2 ) + { + c = input[j]; + HEX2NUM( c ); + output[ j / 2 ] = c << 4; + + c = input[j + 1]; + HEX2NUM( c ); + output[ j / 2 ] |= c; + } + + return( 0 ); +} + +typedef struct _psk_entry psk_entry; + +struct _psk_entry +{ + const char *name; + size_t key_len; + unsigned char key[MBEDTLS_PSK_MAX_LEN]; + psk_entry *next; +}; + +/* + * Free a list of psk_entry's + */ +void psk_free( psk_entry *head ) +{ + psk_entry *next; + + while( head != NULL ) + { + next = head->next; + mbedtls_free( head ); + head = next; + } +} + +/* + * Parse a string of pairs name1,key1[,name2,key2[,...]] + * into a usable psk_entry list. + * + * Modifies the input string! This is not production quality! + */ +psk_entry *psk_parse( char *psk_string ) +{ + psk_entry *cur = NULL, *new = NULL; + char *p = psk_string; + char *end = p; + char *key_hex; + + while( *end != '\0' ) + ++end; + *end = ','; + + while( p <= end ) + { + if( ( new = mbedtls_calloc( 1, sizeof( psk_entry ) ) ) == NULL ) + goto error; + + memset( new, 0, sizeof( psk_entry ) ); + + GET_ITEM( new->name ); + GET_ITEM( key_hex ); + + if( unhexify( new->key, key_hex, &new->key_len ) != 0 ) + goto error; + + new->next = cur; + cur = new; + } + + return( cur ); + +error: + psk_free( new ); + psk_free( cur ); + return( 0 ); +} + +/* + * PSK callback + */ +int psk_callback( void *p_info, mbedtls_ssl_context *ssl, + const unsigned char *name, size_t name_len ) +{ + psk_entry *cur = (psk_entry *) p_info; + + while( cur != NULL ) + { + if( name_len == strlen( cur->name ) && + memcmp( name, cur->name, name_len ) == 0 ) + { + return( mbedtls_ssl_set_hs_psk( ssl, cur->key, cur->key_len ) ); + } + + cur = cur->next; + } + + return( -1 ); +} +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +static mbedtls_net_context listen_fd, client_fd; + +/* Interruption handler to ensure clean exit (for valgrind testing) */ +#if !defined(_WIN32) +static int received_sigterm = 0; +void term_handler( int sig ) +{ + ((void) sig); + received_sigterm = 1; + mbedtls_net_free( &listen_fd ); /* causes mbedtls_net_accept() to abort */ + mbedtls_net_free( &client_fd ); /* causes net_read() to abort */ +} +#endif + +int main( int argc, char *argv[] ) +{ + int ret = 0, len, written, frags, exchanges_left; + int version_suites[4][2]; + unsigned char buf[IO_BUF_LEN]; +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + unsigned char psk[MBEDTLS_PSK_MAX_LEN]; + size_t psk_len = 0; + psk_entry *psk_info = NULL; +#endif + const char *pers = "ssl_server2"; + unsigned char client_ip[16] = { 0 }; + size_t cliip_len; +#if defined(MBEDTLS_SSL_COOKIE_C) + mbedtls_ssl_cookie_ctx cookie_ctx; +#endif + + mbedtls_entropy_context entropy; + mbedtls_ctr_drbg_context ctr_drbg; + mbedtls_ssl_context ssl; + mbedtls_ssl_config conf; +#if defined(MBEDTLS_TIMING_C) + mbedtls_timing_delay_context timer; +#endif +#if defined(MBEDTLS_SSL_RENEGOTIATION) + unsigned char renego_period[8] = { 0 }; +#endif +#if defined(MBEDTLS_X509_CRT_PARSE_C) + uint32_t flags; + mbedtls_x509_crt cacert; + mbedtls_x509_crt srvcert; + mbedtls_pk_context pkey; + mbedtls_x509_crt srvcert2; + mbedtls_pk_context pkey2; + int key_cert_init = 0, key_cert_init2 = 0; +#endif +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO) + mbedtls_dhm_context dhm; +#endif +#if defined(MBEDTLS_SSL_CACHE_C) + mbedtls_ssl_cache_context cache; +#endif +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + mbedtls_ssl_ticket_context ticket_ctx; +#endif +#if defined(SNI_OPTION) + sni_entry *sni_info = NULL; +#endif +#if defined(MBEDTLS_SSL_ALPN) + const char *alpn_list[10]; +#endif +#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) + unsigned char alloc_buf[100000]; +#endif + + int i; + char *p, *q; + const int *list; + +#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) + mbedtls_memory_buffer_alloc_init( alloc_buf, sizeof(alloc_buf) ); +#endif + + /* + * Make sure memory references are valid in case we exit early. + */ + mbedtls_net_init( &client_fd ); + mbedtls_net_init( &listen_fd ); + mbedtls_ssl_init( &ssl ); + mbedtls_ssl_config_init( &conf ); + mbedtls_ctr_drbg_init( &ctr_drbg ); +#if defined(MBEDTLS_X509_CRT_PARSE_C) + mbedtls_x509_crt_init( &cacert ); + mbedtls_x509_crt_init( &srvcert ); + mbedtls_pk_init( &pkey ); + mbedtls_x509_crt_init( &srvcert2 ); + mbedtls_pk_init( &pkey2 ); +#endif +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO) + mbedtls_dhm_init( &dhm ); +#endif +#if defined(MBEDTLS_SSL_CACHE_C) + mbedtls_ssl_cache_init( &cache ); +#endif +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + mbedtls_ssl_ticket_init( &ticket_ctx ); +#endif +#if defined(MBEDTLS_SSL_ALPN) + memset( (void *) alpn_list, 0, sizeof( alpn_list ) ); +#endif +#if defined(MBEDTLS_SSL_COOKIE_C) + mbedtls_ssl_cookie_init( &cookie_ctx ); +#endif + +#if !defined(_WIN32) + /* Abort cleanly on SIGTERM and SIGINT */ + signal( SIGTERM, term_handler ); + signal( SIGINT, term_handler ); +#endif + + if( argc == 0 ) + { + usage: + if( ret == 0 ) + ret = 1; + + mbedtls_printf( USAGE ); + + list = mbedtls_ssl_list_ciphersuites(); + while( *list ) + { + mbedtls_printf(" %-42s", mbedtls_ssl_get_ciphersuite_name( *list ) ); + list++; + if( !*list ) + break; + mbedtls_printf(" %s\n", mbedtls_ssl_get_ciphersuite_name( *list ) ); + list++; + } + mbedtls_printf("\n"); + goto exit; + } + + opt.server_addr = DFL_SERVER_ADDR; + opt.server_port = DFL_SERVER_PORT; + opt.debug_level = DFL_DEBUG_LEVEL; + opt.nbio = DFL_NBIO; + opt.read_timeout = DFL_READ_TIMEOUT; + 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.crt_file2 = DFL_CRT_FILE2; + opt.key_file2 = DFL_KEY_FILE2; + opt.psk = DFL_PSK; + opt.psk_identity = DFL_PSK_IDENTITY; + opt.psk_list = DFL_PSK_LIST; + opt.ecjpake_pw = DFL_ECJPAKE_PW; + opt.force_ciphersuite[0]= DFL_FORCE_CIPHER; + opt.version_suites = DFL_VERSION_SUITES; + opt.renegotiation = DFL_RENEGOTIATION; + opt.allow_legacy = DFL_ALLOW_LEGACY; + opt.renegotiate = DFL_RENEGOTIATE; + opt.renego_delay = DFL_RENEGO_DELAY; + opt.renego_period = DFL_RENEGO_PERIOD; + 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.tickets = DFL_TICKETS; + opt.ticket_timeout = DFL_TICKET_TIMEOUT; + opt.cache_max = DFL_CACHE_MAX; + opt.cache_timeout = DFL_CACHE_TIMEOUT; + opt.sni = DFL_SNI; + opt.alpn_string = DFL_ALPN_STRING; + opt.dhm_file = DFL_DHM_FILE; + opt.transport = DFL_TRANSPORT; + opt.cookies = DFL_COOKIES; + opt.anti_replay = DFL_ANTI_REPLAY; + opt.hs_to_min = DFL_HS_TO_MIN; + opt.hs_to_max = DFL_HS_TO_MAX; + opt.badmac_limit = DFL_BADMAC_LIMIT; + 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_port" ) == 0 ) + opt.server_port = q; + else if( strcmp( p, "server_addr" ) == 0 ) + opt.server_addr = q; + else if( strcmp( p, "dtls" ) == 0 ) + { + int t = atoi( q ); + if( t == 0 ) + opt.transport = MBEDTLS_SSL_TRANSPORT_STREAM; + else if( t == 1 ) + opt.transport = MBEDTLS_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, "read_timeout" ) == 0 ) + opt.read_timeout = atoi( q ); + 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, "crt_file2" ) == 0 ) + opt.crt_file2 = q; + else if( strcmp( p, "key_file2" ) == 0 ) + opt.key_file2 = q; + else if( strcmp( p, "dhm_file" ) == 0 ) + opt.dhm_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, "psk_list" ) == 0 ) + opt.psk_list = q; + else if( strcmp( p, "ecjpake_pw" ) == 0 ) + opt.ecjpake_pw = q; + else if( strcmp( p, "force_ciphersuite" ) == 0 ) + { + opt.force_ciphersuite[0] = mbedtls_ssl_get_ciphersuite_id( q ); + + if( opt.force_ciphersuite[0] == 0 ) + { + ret = 2; + goto usage; + } + opt.force_ciphersuite[1] = 0; + } + else if( strcmp( p, "version_suites" ) == 0 ) + opt.version_suites = q; + else if( strcmp( p, "renegotiation" ) == 0 ) + { + opt.renegotiation = (atoi( q )) ? MBEDTLS_SSL_RENEGOTIATION_ENABLED : + MBEDTLS_SSL_RENEGOTIATION_DISABLED; + } + else if( strcmp( p, "allow_legacy" ) == 0 ) + { + switch( atoi( q ) ) + { + case -1: opt.allow_legacy = MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE; break; + case 0: opt.allow_legacy = MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION; break; + case 1: opt.allow_legacy = MBEDTLS_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, "renego_delay" ) == 0 ) + { + opt.renego_delay = atoi( q ); + } + else if( strcmp( p, "renego_period" ) == 0 ) + { +#if defined(_MSC_VER) + opt.renego_period = _strtoui64( q, NULL, 10 ); +#else + if( sscanf( q, "%" SCNu64, &opt.renego_period ) != 1 ) + goto usage; +#endif /* _MSC_VER */ + if( opt.renego_period < 2 ) + goto usage; + } + else if( strcmp( p, "exchanges" ) == 0 ) + { + opt.exchanges = atoi( q ); + if( opt.exchanges < 0 ) + goto usage; + } + else if( strcmp( p, "min_version" ) == 0 ) + { + if( strcmp( q, "ssl3" ) == 0 ) + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0; + else if( strcmp( q, "tls1" ) == 0 ) + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1; + else if( strcmp( q, "tls1_1" ) == 0 || + strcmp( q, "dtls1" ) == 0 ) + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2; + else if( strcmp( q, "tls1_2" ) == 0 || + strcmp( q, "dtls1_2" ) == 0 ) + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3; + else + goto usage; + } + else if( strcmp( p, "max_version" ) == 0 ) + { + if( strcmp( q, "ssl3" ) == 0 ) + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0; + else if( strcmp( q, "tls1" ) == 0 ) + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1; + else if( strcmp( q, "tls1_1" ) == 0 || + strcmp( q, "dtls1" ) == 0 ) + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2; + else if( strcmp( q, "tls1_2" ) == 0 || + strcmp( q, "dtls1_2" ) == 0 ) + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3; + else + goto usage; + } + else if( strcmp( p, "arc4" ) == 0 ) + { + switch( atoi( q ) ) + { + case 0: opt.arc4 = MBEDTLS_SSL_ARC4_DISABLED; break; + case 1: opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED; break; + default: goto usage; + } + } + else if( strcmp( p, "force_version" ) == 0 ) + { + if( strcmp( q, "ssl3" ) == 0 ) + { + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_0; + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_0; + } + else if( strcmp( q, "tls1" ) == 0 ) + { + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_1; + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_1; + } + else if( strcmp( q, "tls1_1" ) == 0 ) + { + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2; + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2; + } + else if( strcmp( q, "tls1_2" ) == 0 ) + { + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3; + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3; + } + else if( strcmp( q, "dtls1" ) == 0 ) + { + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2; + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_2; + opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM; + } + else if( strcmp( q, "dtls1_2" ) == 0 ) + { + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_3; + opt.max_version = MBEDTLS_SSL_MINOR_VERSION_3; + opt.transport = MBEDTLS_SSL_TRANSPORT_DATAGRAM; + } + else + goto usage; + } + else if( strcmp( p, "auth_mode" ) == 0 ) + { + if( ( opt.auth_mode = get_auth_mode( q ) ) < 0 ) + goto usage; + } + else if( strcmp( p, "max_frag_len" ) == 0 ) + { + if( strcmp( q, "512" ) == 0 ) + opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_512; + else if( strcmp( q, "1024" ) == 0 ) + opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_1024; + else if( strcmp( q, "2048" ) == 0 ) + opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_2048; + else if( strcmp( q, "4096" ) == 0 ) + opt.mfl_code = MBEDTLS_SSL_MAX_FRAG_LEN_4096; + else + goto usage; + } + else if( strcmp( p, "alpn" ) == 0 ) + { + opt.alpn_string = q; + } + else if( strcmp( p, "trunc_hmac" ) == 0 ) + { + switch( atoi( q ) ) + { + case 0: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_DISABLED; break; + case 1: opt.trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED; break; + default: goto usage; + } + } + else if( strcmp( p, "extended_ms" ) == 0 ) + { + switch( atoi( q ) ) + { + case 0: opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_DISABLED; break; + case 1: opt.extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED; break; + default: goto usage; + } + } + else if( strcmp( p, "etm" ) == 0 ) + { + switch( atoi( q ) ) + { + case 0: opt.etm = MBEDTLS_SSL_ETM_DISABLED; break; + case 1: opt.etm = MBEDTLS_SSL_ETM_ENABLED; break; + default: goto usage; + } + } + else if( strcmp( p, "tickets" ) == 0 ) + { + opt.tickets = atoi( q ); + if( opt.tickets < 0 || opt.tickets > 1 ) + goto usage; + } + else if( strcmp( p, "ticket_timeout" ) == 0 ) + { + opt.ticket_timeout = atoi( q ); + if( opt.ticket_timeout < 0 ) + goto usage; + } + else if( strcmp( p, "cache_max" ) == 0 ) + { + opt.cache_max = atoi( q ); + if( opt.cache_max < 0 ) + goto usage; + } + else if( strcmp( p, "cache_timeout" ) == 0 ) + { + opt.cache_timeout = atoi( q ); + if( opt.cache_timeout < 0 ) + goto usage; + } + else if( strcmp( p, "cookies" ) == 0 ) + { + opt.cookies = atoi( q ); + if( opt.cookies < -1 || opt.cookies > 1) + goto usage; + } + else if( strcmp( p, "anti_replay" ) == 0 ) + { + opt.anti_replay = atoi( q ); + if( opt.anti_replay < 0 || opt.anti_replay > 1) + goto usage; + } + else if( strcmp( p, "badmac_limit" ) == 0 ) + { + opt.badmac_limit = atoi( q ); + if( opt.badmac_limit < 0 ) + goto usage; + } + else if( strcmp( p, "hs_timeout" ) == 0 ) + { + if( ( p = strchr( q, '-' ) ) == NULL ) + goto usage; + *p++ = '\0'; + opt.hs_to_min = atoi( q ); + opt.hs_to_max = atoi( p ); + if( opt.hs_to_min == 0 || opt.hs_to_max < opt.hs_to_min ) + goto usage; + } + else if( strcmp( p, "sni" ) == 0 ) + { + opt.sni = q; + } + else + goto usage; + } + +#if defined(MBEDTLS_DEBUG_C) + mbedtls_debug_set_threshold( opt.debug_level ); +#endif + + if( opt.force_ciphersuite[0] > 0 ) + { + const mbedtls_ssl_ciphersuite_t *ciphersuite_info; + ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( opt.force_ciphersuite[0] ); + + if( opt.max_version != -1 && + ciphersuite_info->min_minor_ver > opt.max_version ) + { + mbedtls_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 ) + { + mbedtls_printf("forced ciphersuite not allowed with this protocol version\n"); + ret = 2; + goto usage; + } + + /* If we select a version that's not supported by + * this suite, then there will be no common ciphersuite... */ + if( opt.max_version == -1 || + 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; + /* DTLS starts with TLS 1.1 */ + if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM && + opt.min_version < MBEDTLS_SSL_MINOR_VERSION_2 ) + opt.min_version = MBEDTLS_SSL_MINOR_VERSION_2; + } + + /* Enable RC4 if needed and not explicitly disabled */ + if( ciphersuite_info->cipher == MBEDTLS_CIPHER_ARC4_128 ) + { + if( opt.arc4 == MBEDTLS_SSL_ARC4_DISABLED ) + { + mbedtls_printf("forced RC4 ciphersuite with RC4 disabled\n"); + ret = 2; + goto usage; + } + + opt.arc4 = MBEDTLS_SSL_ARC4_ENABLED; + } + } + + if( opt.version_suites != NULL ) + { + const char *name[4] = { 0 }; + + /* Parse 4-element coma-separated list */ + for( i = 0, p = (char *) opt.version_suites; + i < 4 && *p != '\0'; + i++ ) + { + name[i] = p; + + /* Terminate the current string and move on to next one */ + while( *p != ',' && *p != '\0' ) + p++; + if( *p == ',' ) + *p++ = '\0'; + } + + if( i != 4 ) + { + mbedtls_printf( "too few values for version_suites\n" ); + ret = 1; + goto exit; + } + + memset( version_suites, 0, sizeof( version_suites ) ); + + /* Get the suites identifiers from their name */ + for( i = 0; i < 4; i++ ) + { + version_suites[i][0] = mbedtls_ssl_get_ciphersuite_id( name[i] ); + + if( version_suites[i][0] == 0 ) + { + mbedtls_printf( "unknown ciphersuite: '%s'\n", name[i] ); + ret = 2; + goto usage; + } + } + } + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + /* + * Unhexify the pre-shared key and parse the list if any given + */ + if( unhexify( psk, opt.psk, &psk_len ) != 0 ) + { + mbedtls_printf( "pre-shared key not valid hex\n" ); + goto exit; + } + + if( opt.psk_list != NULL ) + { + if( ( psk_info = psk_parse( opt.psk_list ) ) == NULL ) + { + mbedtls_printf( "psk_list invalid" ); + goto exit; + } + } +#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */ + +#if defined(MBEDTLS_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 /* MBEDTLS_SSL_ALPN */ + + /* + * 0. Initialize the RNG and the session data + */ + mbedtls_printf( "\n . Seeding the random number generator..." ); + fflush( stdout ); + + mbedtls_entropy_init( &entropy ); + if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy, + (const unsigned char *) pers, + strlen( pers ) ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%x\n", -ret ); + goto exit; + } + + mbedtls_printf( " ok\n" ); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + /* + * 1.1. Load the trusted CA + */ + mbedtls_printf( " . Loading the CA root certificate ..." ); + fflush( stdout ); + +#if defined(MBEDTLS_FS_IO) + if( strlen( opt.ca_path ) ) + if( strcmp( opt.ca_path, "none" ) == 0 ) + ret = 0; + else + ret = mbedtls_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 = mbedtls_x509_crt_parse_file( &cacert, opt.ca_file ); + else +#endif +#if defined(MBEDTLS_CERTS_C) + for( i = 0; mbedtls_test_cas[i] != NULL; i++ ) + { + ret = mbedtls_x509_crt_parse( &cacert, + (const unsigned char *) mbedtls_test_cas[i], + mbedtls_test_cas_len[i] ); + if( ret != 0 ) + break; + } +#else + { + ret = 1; + mbedtls_printf("MBEDTLS_CERTS_C not defined."); + } +#endif + if( ret < 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse returned -0x%x\n\n", -ret ); + goto exit; + } + + mbedtls_printf( " ok (%d skipped)\n", ret ); + + /* + * 1.2. Load own certificate and private key + */ + mbedtls_printf( " . Loading the server cert. and key..." ); + fflush( stdout ); + +#if defined(MBEDTLS_FS_IO) + if( strlen( opt.crt_file ) && strcmp( opt.crt_file, "none" ) != 0 ) + { + key_cert_init++; + if( ( ret = mbedtls_x509_crt_parse_file( &srvcert, opt.crt_file ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse_file returned -0x%x\n\n", + -ret ); + goto exit; + } + } + if( strlen( opt.key_file ) && strcmp( opt.key_file, "none" ) != 0 ) + { + key_cert_init++; + if( ( ret = mbedtls_pk_parse_keyfile( &pkey, opt.key_file, "" ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_pk_parse_keyfile returned -0x%x\n\n", -ret ); + goto exit; + } + } + if( key_cert_init == 1 ) + { + mbedtls_printf( " failed\n ! crt_file without key_file or vice-versa\n\n" ); + goto exit; + } + + if( strlen( opt.crt_file2 ) && strcmp( opt.crt_file2, "none" ) != 0 ) + { + key_cert_init2++; + if( ( ret = mbedtls_x509_crt_parse_file( &srvcert2, opt.crt_file2 ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse_file(2) returned -0x%x\n\n", + -ret ); + goto exit; + } + } + if( strlen( opt.key_file2 ) && strcmp( opt.key_file2, "none" ) != 0 ) + { + key_cert_init2++; + if( ( ret = mbedtls_pk_parse_keyfile( &pkey2, opt.key_file2, "" ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_pk_parse_keyfile(2) returned -0x%x\n\n", + -ret ); + goto exit; + } + } + if( key_cert_init2 == 1 ) + { + mbedtls_printf( " failed\n ! crt_file2 without key_file2 or vice-versa\n\n" ); + goto exit; + } +#endif + if( key_cert_init == 0 && + strcmp( opt.crt_file, "none" ) != 0 && + strcmp( opt.key_file, "none" ) != 0 && + key_cert_init2 == 0 && + strcmp( opt.crt_file2, "none" ) != 0 && + strcmp( opt.key_file2, "none" ) != 0 ) + { +#if !defined(MBEDTLS_CERTS_C) + mbedtls_printf( "Not certificated or key provided, and \n" + "MBEDTLS_CERTS_C not defined!\n" ); + goto exit; +#else +#if defined(MBEDTLS_RSA_C) + if( ( ret = mbedtls_x509_crt_parse( &srvcert, + (const unsigned char *) mbedtls_test_srv_crt_rsa, + mbedtls_test_srv_crt_rsa_len ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse returned -0x%x\n\n", -ret ); + goto exit; + } + if( ( ret = mbedtls_pk_parse_key( &pkey, + (const unsigned char *) mbedtls_test_srv_key_rsa, + mbedtls_test_srv_key_rsa_len, NULL, 0 ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_pk_parse_key returned -0x%x\n\n", -ret ); + goto exit; + } + key_cert_init = 2; +#endif /* MBEDTLS_RSA_C */ +#if defined(MBEDTLS_ECDSA_C) + if( ( ret = mbedtls_x509_crt_parse( &srvcert2, + (const unsigned char *) mbedtls_test_srv_crt_ec, + mbedtls_test_srv_crt_ec_len ) ) != 0 ) + { + mbedtls_printf( " failed\n ! x509_crt_parse2 returned -0x%x\n\n", -ret ); + goto exit; + } + if( ( ret = mbedtls_pk_parse_key( &pkey2, + (const unsigned char *) mbedtls_test_srv_key_ec, + mbedtls_test_srv_key_ec_len, NULL, 0 ) ) != 0 ) + { + mbedtls_printf( " failed\n ! pk_parse_key2 returned -0x%x\n\n", -ret ); + goto exit; + } + key_cert_init2 = 2; +#endif /* MBEDTLS_ECDSA_C */ +#endif /* MBEDTLS_CERTS_C */ + } + + mbedtls_printf( " ok\n" ); +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO) + if( opt.dhm_file != NULL ) + { + mbedtls_printf( " . Loading DHM parameters..." ); + fflush( stdout ); + + if( ( ret = mbedtls_dhm_parse_dhmfile( &dhm, opt.dhm_file ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_dhm_parse_dhmfile returned -0x%04X\n\n", + -ret ); + goto exit; + } + + mbedtls_printf( " ok\n" ); + } +#endif + +#if defined(SNI_OPTION) + if( opt.sni != NULL ) + { + mbedtls_printf( " . Setting up SNI information..." ); + fflush( stdout ); + + if( ( sni_info = sni_parse( opt.sni ) ) == NULL ) + { + mbedtls_printf( " failed\n" ); + goto exit; + } + + mbedtls_printf( " ok\n" ); + } +#endif /* SNI_OPTION */ + + /* + * 2. Setup the listening TCP socket + */ + mbedtls_printf( " . Bind on %s://%s:%s/ ...", + opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ? "tcp" : "udp", + opt.server_addr ? opt.server_addr : "*", + opt.server_port ); + fflush( stdout ); + + if( ( ret = mbedtls_net_bind( &listen_fd, opt.server_addr, opt.server_port, + opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ? + MBEDTLS_NET_PROTO_TCP : MBEDTLS_NET_PROTO_UDP ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_net_bind returned -0x%x\n\n", -ret ); + goto exit; + } + + mbedtls_printf( " ok\n" ); + + /* + * 3. Setup stuff + */ + mbedtls_printf( " . Setting up the SSL/TLS structure..." ); + fflush( stdout ); + + if( ( ret = mbedtls_ssl_config_defaults( &conf, + MBEDTLS_SSL_IS_SERVER, + opt.transport, + MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_config_defaults returned -0x%x\n\n", -ret ); + goto exit; + } + + if( opt.auth_mode != DFL_AUTH_MODE ) + mbedtls_ssl_conf_authmode( &conf, opt.auth_mode ); + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( opt.hs_to_min != DFL_HS_TO_MIN || opt.hs_to_max != DFL_HS_TO_MAX ) + mbedtls_ssl_conf_handshake_timeout( &conf, opt.hs_to_min, opt.hs_to_max ); +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + if( ( ret = mbedtls_ssl_conf_max_frag_len( &conf, opt.mfl_code ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_conf_max_frag_len returned %d\n\n", ret ); + goto exit; + }; +#endif + +#if defined(MBEDTLS_SSL_TRUNCATED_HMAC) + if( opt.trunc_hmac != DFL_TRUNC_HMAC ) + mbedtls_ssl_conf_truncated_hmac( &conf, opt.trunc_hmac ); +#endif + +#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) + if( opt.extended_ms != DFL_EXTENDED_MS ) + mbedtls_ssl_conf_extended_master_secret( &conf, opt.extended_ms ); +#endif + +#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) + if( opt.etm != DFL_ETM ) + mbedtls_ssl_conf_encrypt_then_mac( &conf, opt.etm ); +#endif + +#if defined(MBEDTLS_SSL_ALPN) + if( opt.alpn_string != NULL ) + if( ( ret = mbedtls_ssl_conf_alpn_protocols( &conf, alpn_list ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_conf_alpn_protocols returned %d\n\n", ret ); + goto exit; + } +#endif + + mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg ); + mbedtls_ssl_conf_dbg( &conf, my_debug, stdout ); + +#if defined(MBEDTLS_SSL_CACHE_C) + if( opt.cache_max != -1 ) + mbedtls_ssl_cache_set_max_entries( &cache, opt.cache_max ); + + if( opt.cache_timeout != -1 ) + mbedtls_ssl_cache_set_timeout( &cache, opt.cache_timeout ); + + mbedtls_ssl_conf_session_cache( &conf, &cache, + mbedtls_ssl_cache_get, + mbedtls_ssl_cache_set ); +#endif + +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + if( opt.tickets == MBEDTLS_SSL_SESSION_TICKETS_ENABLED ) + { + if( ( ret = mbedtls_ssl_ticket_setup( &ticket_ctx, + mbedtls_ctr_drbg_random, &ctr_drbg, + MBEDTLS_CIPHER_AES_256_GCM, + opt.ticket_timeout ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_ticket_setup returned %d\n\n", ret ); + goto exit; + } + + mbedtls_ssl_conf_session_tickets_cb( &conf, + mbedtls_ssl_ticket_write, + mbedtls_ssl_ticket_parse, + &ticket_ctx ); + } +#endif + +#if defined(MBEDTLS_SSL_PROTO_DTLS) + if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { +#if defined(MBEDTLS_SSL_COOKIE_C) + if( opt.cookies > 0 ) + { + if( ( ret = mbedtls_ssl_cookie_setup( &cookie_ctx, + mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_cookie_setup returned %d\n\n", ret ); + goto exit; + } + + mbedtls_ssl_conf_dtls_cookies( &conf, mbedtls_ssl_cookie_write, mbedtls_ssl_cookie_check, + &cookie_ctx ); + } + else +#endif /* MBEDTLS_SSL_COOKIE_C */ +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) + if( opt.cookies == 0 ) + { + mbedtls_ssl_conf_dtls_cookies( &conf, NULL, NULL, NULL ); + } + else +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ + { + ; /* Nothing to do */ + } + +#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) + if( opt.anti_replay != DFL_ANTI_REPLAY ) + mbedtls_ssl_conf_dtls_anti_replay( &conf, opt.anti_replay ); +#endif + +#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) + if( opt.badmac_limit != DFL_BADMAC_LIMIT ) + mbedtls_ssl_conf_dtls_badmac_limit( &conf, opt.badmac_limit ); +#endif + } +#endif /* MBEDTLS_SSL_PROTO_DTLS */ + + if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER ) + mbedtls_ssl_conf_ciphersuites( &conf, opt.force_ciphersuite ); + +#if defined(MBEDTLS_ARC4_C) + if( opt.arc4 != DFL_ARC4 ) + mbedtls_ssl_conf_arc4_support( &conf, opt.arc4 ); +#endif + + if( opt.version_suites != NULL ) + { + mbedtls_ssl_conf_ciphersuites_for_version( &conf, version_suites[0], + MBEDTLS_SSL_MAJOR_VERSION_3, + MBEDTLS_SSL_MINOR_VERSION_0 ); + mbedtls_ssl_conf_ciphersuites_for_version( &conf, version_suites[1], + MBEDTLS_SSL_MAJOR_VERSION_3, + MBEDTLS_SSL_MINOR_VERSION_1 ); + mbedtls_ssl_conf_ciphersuites_for_version( &conf, version_suites[2], + MBEDTLS_SSL_MAJOR_VERSION_3, + MBEDTLS_SSL_MINOR_VERSION_2 ); + mbedtls_ssl_conf_ciphersuites_for_version( &conf, version_suites[3], + MBEDTLS_SSL_MAJOR_VERSION_3, + MBEDTLS_SSL_MINOR_VERSION_3 ); + } + + if( opt.allow_legacy != DFL_ALLOW_LEGACY ) + mbedtls_ssl_conf_legacy_renegotiation( &conf, opt.allow_legacy ); +#if defined(MBEDTLS_SSL_RENEGOTIATION) + mbedtls_ssl_conf_renegotiation( &conf, opt.renegotiation ); + + if( opt.renego_delay != DFL_RENEGO_DELAY ) + mbedtls_ssl_conf_renegotiation_enforced( &conf, opt.renego_delay ); + + if( opt.renego_period != DFL_RENEGO_PERIOD ) + { + PUT_UINT64_BE( renego_period, opt.renego_period, 0 ); + mbedtls_ssl_conf_renegotiation_period( &conf, renego_period ); + } +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + if( strcmp( opt.ca_path, "none" ) != 0 && + strcmp( opt.ca_file, "none" ) != 0 ) + { + mbedtls_ssl_conf_ca_chain( &conf, &cacert, NULL ); + } + if( key_cert_init ) + if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret ); + goto exit; + } + if( key_cert_init2 ) + if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert2, &pkey2 ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret ); + goto exit; + } +#endif + +#if defined(SNI_OPTION) + if( opt.sni != NULL ) + mbedtls_ssl_conf_sni( &conf, sni_callback, sni_info ); +#endif + +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + if( strlen( opt.psk ) != 0 && strlen( opt.psk_identity ) != 0 ) + { + ret = mbedtls_ssl_conf_psk( &conf, psk, psk_len, + (const unsigned char *) opt.psk_identity, + strlen( opt.psk_identity ) ); + if( ret != 0 ) + { + mbedtls_printf( " failed\n mbedtls_ssl_conf_psk returned -0x%04X\n\n", - ret ); + goto exit; + } + } + + if( opt.psk_list != NULL ) + mbedtls_ssl_conf_psk_cb( &conf, psk_callback, psk_info ); +#endif + +#if defined(MBEDTLS_DHM_C) + /* + * Use different group than default DHM group + */ +#if defined(MBEDTLS_FS_IO) + if( opt.dhm_file != NULL ) + ret = mbedtls_ssl_conf_dh_param_ctx( &conf, &dhm ); +#endif + if( ret != 0 ) + { + mbedtls_printf( " failed\n mbedtls_ssl_conf_dh_param returned -0x%04X\n\n", - ret ); + goto exit; + } +#endif + + if( opt.min_version != DFL_MIN_VERSION ) + mbedtls_ssl_conf_min_version( &conf, MBEDTLS_SSL_MAJOR_VERSION_3, opt.min_version ); + + if( opt.max_version != DFL_MIN_VERSION ) + mbedtls_ssl_conf_max_version( &conf, MBEDTLS_SSL_MAJOR_VERSION_3, opt.max_version ); + + if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_setup returned -0x%x\n\n", -ret ); + goto exit; + } + + if( opt.nbio == 2 ) + mbedtls_ssl_set_bio( &ssl, &client_fd, my_send, my_recv, NULL ); + else + mbedtls_ssl_set_bio( &ssl, &client_fd, mbedtls_net_send, mbedtls_net_recv, + opt.nbio == 0 ? mbedtls_net_recv_timeout : NULL ); + +#if defined(MBEDTLS_TIMING_C) + mbedtls_ssl_set_timer_cb( &ssl, &timer, mbedtls_timing_set_delay, + mbedtls_timing_get_delay ); +#endif + + mbedtls_printf( " ok\n" ); + +reset: +#if !defined(_WIN32) + if( received_sigterm ) + { + mbedtls_printf( " interrupted by SIGTERM\n" ); + ret = 0; + goto exit; + } +#endif + + if( ret == MBEDTLS_ERR_SSL_CLIENT_RECONNECT ) + { + mbedtls_printf( " ! Client initiated reconnection from same port\n" ); + goto handshake; + } + +#ifdef MBEDTLS_ERROR_C + if( ret != 0 ) + { + char error_buf[100]; + mbedtls_strerror( ret, error_buf, 100 ); + mbedtls_printf("Last error was: %d - %s\n\n", ret, error_buf ); + } +#endif + + mbedtls_net_free( &client_fd ); + + mbedtls_ssl_session_reset( &ssl ); + + /* + * 3. Wait until a client connects + */ + mbedtls_printf( " . Waiting for a remote connection ..." ); + fflush( stdout ); + + if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd, + client_ip, sizeof( client_ip ), &cliip_len ) ) != 0 ) + { +#if !defined(_WIN32) + if( received_sigterm ) + { + mbedtls_printf( " interrupted by signal\n" ); + ret = 0; + goto exit; + } +#endif + + mbedtls_printf( " failed\n ! mbedtls_net_accept returned -0x%x\n\n", -ret ); + goto exit; + } + + if( opt.nbio > 0 ) + ret = mbedtls_net_set_nonblock( &client_fd ); + else + ret = mbedtls_net_set_block( &client_fd ); + if( ret != 0 ) + { + mbedtls_printf( " failed\n ! net_set_(non)block() returned -0x%x\n\n", -ret ); + goto exit; + } + + mbedtls_ssl_conf_read_timeout( &conf, opt.read_timeout ); + +#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) + if( opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM ) + { + if( ( ret = mbedtls_ssl_set_client_transport_id( &ssl, + client_ip, cliip_len ) ) != 0 ) + { + mbedtls_printf( " failed\n ! " + "mbedtls_ssl_set_client_transport_id() returned -0x%x\n\n", -ret ); + goto exit; + } + } +#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */ + +#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) + if( opt.ecjpake_pw != DFL_ECJPAKE_PW ) + { + if( ( ret = mbedtls_ssl_set_hs_ecjpake_password( &ssl, + (const unsigned char *) opt.ecjpake_pw, + strlen( opt.ecjpake_pw ) ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_set_hs_ecjpake_password returned %d\n\n", ret ); + goto exit; + } + } +#endif + + mbedtls_printf( " ok\n" ); + + /* + * 4. Handshake + */ +handshake: + mbedtls_printf( " . Performing the SSL/TLS handshake..." ); + fflush( stdout ); + + do ret = mbedtls_ssl_handshake( &ssl ); + while( ret == MBEDTLS_ERR_SSL_WANT_READ || + ret == MBEDTLS_ERR_SSL_WANT_WRITE ); + + if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED ) + { + mbedtls_printf( " hello verification requested\n" ); + ret = 0; + goto reset; + } + else if( ret != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_handshake returned -0x%x\n\n", -ret ); + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + if( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED ) + { + char vrfy_buf[512]; + flags = mbedtls_ssl_get_verify_result( &ssl ); + + mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), " ! ", flags ); + + mbedtls_printf( "%s\n", vrfy_buf ); + } +#endif + + goto reset; + } + else /* ret == 0 */ + { + mbedtls_printf( " ok\n [ Protocol is %s ]\n [ Ciphersuite is %s ]\n", + mbedtls_ssl_get_version( &ssl ), mbedtls_ssl_get_ciphersuite( &ssl ) ); + } + + if( ( ret = mbedtls_ssl_get_record_expansion( &ssl ) ) >= 0 ) + mbedtls_printf( " [ Record expansion is %d ]\n", ret ); + else + mbedtls_printf( " [ Record expansion is unknown (compression) ]\n" ); + +#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) + mbedtls_printf( " [ Maximum fragment length is %u ]\n", + (unsigned int) mbedtls_ssl_get_max_frag_len( &ssl ) ); +#endif + +#if defined(MBEDTLS_SSL_ALPN) + if( opt.alpn_string != NULL ) + { + const char *alp = mbedtls_ssl_get_alpn_protocol( &ssl ); + mbedtls_printf( " [ Application Layer Protocol is %s ]\n", + alp ? alp : "(none)" ); + } +#endif + +#if defined(MBEDTLS_X509_CRT_PARSE_C) + /* + * 5. Verify the server certificate + */ + mbedtls_printf( " . Verifying peer X.509 certificate..." ); + + if( ( flags = mbedtls_ssl_get_verify_result( &ssl ) ) != 0 ) + { + char vrfy_buf[512]; + + mbedtls_printf( " failed\n" ); + + mbedtls_x509_crt_verify_info( vrfy_buf, sizeof( vrfy_buf ), " ! ", flags ); + + mbedtls_printf( "%s\n", vrfy_buf ); + } + else + mbedtls_printf( " ok\n" ); + + if( mbedtls_ssl_get_peer_cert( &ssl ) != NULL ) + { + char crt_buf[512]; + + mbedtls_printf( " . Peer certificate information ...\n" ); + mbedtls_x509_crt_info( crt_buf, sizeof( crt_buf ), " ", + mbedtls_ssl_get_peer_cert( &ssl ) ); + mbedtls_printf( "%s\n", crt_buf ); + } +#endif /* MBEDTLS_X509_CRT_PARSE_C */ + + if( opt.exchanges == 0 ) + goto close_notify; + + exchanges_left = opt.exchanges; +data_exchange: + /* + * 6. Read the HTTP Request + */ + mbedtls_printf( " < Read from client:" ); + fflush( stdout ); + + /* + * TLS and DTLS need different reading styles (stream vs datagram) + */ + if( opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ) + { + do + { + int terminated = 0; + len = sizeof( buf ) - 1; + memset( buf, 0, sizeof( buf ) ); + ret = mbedtls_ssl_read( &ssl, buf, len ); + + if( ret == MBEDTLS_ERR_SSL_WANT_READ || + ret == MBEDTLS_ERR_SSL_WANT_WRITE ) + continue; + + if( ret <= 0 ) + { + switch( ret ) + { + case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY: + mbedtls_printf( " connection was closed gracefully\n" ); + goto close_notify; + + case 0: + case MBEDTLS_ERR_NET_CONN_RESET: + mbedtls_printf( " connection was reset by peer\n" ); + ret = MBEDTLS_ERR_NET_CONN_RESET; + goto reset; + + default: + mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n", -ret ); + goto reset; + } + } + + if( mbedtls_ssl_get_bytes_avail( &ssl ) == 0 ) + { + len = ret; + buf[len] = '\0'; + mbedtls_printf( " %d bytes read\n\n%s\n", 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( buf[len - 1] == '\n' ) + terminated = 1; + } + else + { + int extra_len, ori_len; + unsigned char *larger_buf; + + ori_len = ret; + extra_len = (int) mbedtls_ssl_get_bytes_avail( &ssl ); + + larger_buf = mbedtls_calloc( 1, ori_len + extra_len + 1 ); + if( larger_buf == NULL ) + { + mbedtls_printf( " ! memory allocation failed\n" ); + ret = 1; + goto reset; + } + + memset( larger_buf, 0, ori_len + extra_len ); + memcpy( larger_buf, buf, ori_len ); + + /* This read should never fail and get the whole cached data */ + ret = mbedtls_ssl_read( &ssl, larger_buf + ori_len, extra_len ); + if( ret != extra_len || + mbedtls_ssl_get_bytes_avail( &ssl ) != 0 ) + { + mbedtls_printf( " ! mbedtls_ssl_read failed on cached data\n" ); + ret = 1; + goto reset; + } + + larger_buf[ori_len + extra_len] = '\0'; + mbedtls_printf( " %u bytes read (%u + %u)\n\n%s\n", + ori_len + extra_len, ori_len, extra_len, + (char *) larger_buf ); + + /* End of message should be detected according to the syntax of the + * application protocol (eg HTTP), just use a dummy test here. */ + if( larger_buf[ori_len + extra_len - 1] == '\n' ) + terminated = 1; + + mbedtls_free( larger_buf ); + } + + if( terminated ) + { + ret = 0; + break; + } + } + while( 1 ); + } + else /* Not stream, so datagram */ + { + len = sizeof( buf ) - 1; + memset( buf, 0, sizeof( buf ) ); + + do ret = mbedtls_ssl_read( &ssl, buf, len ); + while( ret == MBEDTLS_ERR_SSL_WANT_READ || + ret == MBEDTLS_ERR_SSL_WANT_WRITE ); + + if( ret <= 0 ) + { + switch( ret ) + { + case MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY: + mbedtls_printf( " connection was closed gracefully\n" ); + ret = 0; + goto close_notify; + + default: + mbedtls_printf( " mbedtls_ssl_read returned -0x%x\n", -ret ); + goto reset; + } + } + + len = ret; + buf[len] = '\0'; + mbedtls_printf( " %d bytes read\n\n%s", len, (char *) buf ); + ret = 0; + } + + /* + * 7a. Request renegotiation while client is waiting for input from us. + * (only on the first exchange, to be able to test retransmission) + */ +#if defined(MBEDTLS_SSL_RENEGOTIATION) + if( opt.renegotiate && exchanges_left == opt.exchanges ) + { + mbedtls_printf( " . Requestion renegotiation..." ); + fflush( stdout ); + + while( ( ret = mbedtls_ssl_renegotiate( &ssl ) ) != 0 ) + { + if( ret != MBEDTLS_ERR_SSL_WANT_READ && + ret != MBEDTLS_ERR_SSL_WANT_WRITE ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_renegotiate returned %d\n\n", ret ); + goto reset; + } + } + + mbedtls_printf( " ok\n" ); + } +#endif /* MBEDTLS_SSL_RENEGOTIATION */ + + /* + * 7. Write the 200 Response + */ + mbedtls_printf( " > Write to client:" ); + fflush( stdout ); + + len = sprintf( (char *) buf, HTTP_RESPONSE, + mbedtls_ssl_get_ciphersuite( &ssl ) ); + + if( opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM ) + { + for( written = 0, frags = 0; written < len; written += ret, frags++ ) + { + while( ( ret = mbedtls_ssl_write( &ssl, buf + written, len - written ) ) + <= 0 ) + { + if( ret == MBEDTLS_ERR_NET_CONN_RESET ) + { + mbedtls_printf( " failed\n ! peer closed the connection\n\n" ); + goto reset; + } + + if( ret != MBEDTLS_ERR_SSL_WANT_READ && + ret != MBEDTLS_ERR_SSL_WANT_WRITE ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_write returned %d\n\n", ret ); + goto reset; + } + } + } + } + else /* Not stream, so datagram */ + { + do ret = mbedtls_ssl_write( &ssl, buf, len ); + while( ret == MBEDTLS_ERR_SSL_WANT_READ || + ret == MBEDTLS_ERR_SSL_WANT_WRITE ); + + if( ret < 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_write returned %d\n\n", ret ); + goto reset; + } + + frags = 1; + written = ret; + } + + buf[written] = '\0'; + mbedtls_printf( " %d bytes written in %d fragments\n\n%s\n", written, frags, (char *) buf ); + ret = 0; + + /* + * 7b. Continue doing data exchanges? + */ + if( --exchanges_left > 0 ) + goto data_exchange; + + /* + * 8. Done, cleanly close the connection + */ +close_notify: + mbedtls_printf( " . Closing the connection..." ); + + /* No error checking, the connection might be closed already */ + do ret = mbedtls_ssl_close_notify( &ssl ); + while( ret == MBEDTLS_ERR_SSL_WANT_WRITE ); + ret = 0; + + mbedtls_printf( " done\n" ); + + goto reset; + + /* + * Cleanup and exit + */ +exit: +#ifdef MBEDTLS_ERROR_C + if( ret != 0 ) + { + char error_buf[100]; + mbedtls_strerror( ret, error_buf, 100 ); + mbedtls_printf("Last error was: -0x%X - %s\n\n", -ret, error_buf ); + } +#endif + + mbedtls_printf( " . Cleaning up..." ); + fflush( stdout ); + + mbedtls_net_free( &client_fd ); + mbedtls_net_free( &listen_fd ); + +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO) + mbedtls_dhm_free( &dhm ); +#endif +#if defined(MBEDTLS_X509_CRT_PARSE_C) + mbedtls_x509_crt_free( &cacert ); + mbedtls_x509_crt_free( &srvcert ); + mbedtls_pk_free( &pkey ); + mbedtls_x509_crt_free( &srvcert2 ); + mbedtls_pk_free( &pkey2 ); +#endif +#if defined(SNI_OPTION) + sni_free( sni_info ); +#endif +#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) + psk_free( psk_info ); +#endif +#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO) + mbedtls_dhm_free( &dhm ); +#endif + + mbedtls_ssl_free( &ssl ); + mbedtls_ssl_config_free( &conf ); + mbedtls_ctr_drbg_free( &ctr_drbg ); + mbedtls_entropy_free( &entropy ); + +#if defined(MBEDTLS_SSL_CACHE_C) + mbedtls_ssl_cache_free( &cache ); +#endif +#if defined(MBEDTLS_SSL_SESSION_TICKETS) + mbedtls_ssl_ticket_free( &ticket_ctx ); +#endif +#if defined(MBEDTLS_SSL_COOKIE_C) + mbedtls_ssl_cookie_free( &cookie_ctx ); +#endif + +#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) +#if defined(MBEDTLS_MEMORY_DEBUG) + mbedtls_memory_buffer_alloc_status(); +#endif + mbedtls_memory_buffer_alloc_free(); +#endif + + mbedtls_printf( " done.\n" ); + +#if defined(_WIN32) + mbedtls_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 /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C && + MBEDTLS_SSL_SRV_C && MBEDTLS_NET_C && MBEDTLS_RSA_C && + MBEDTLS_CTR_DRBG_C */ |