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ssl_client2.c
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/*
* SSL client with certificate authentication
*
* 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_time time
#define mbedtls_time_t time_t
#define mbedtls_printf printf
#define mbedtls_fprintf fprintf
#define mbedtls_snprintf snprintf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif
#if !defined(MBEDTLS_ENTROPY_C) || \
!defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_CLI_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_CLI_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>
#define MAX_REQUEST_SIZE 20000
#define MAX_REQUEST_SIZE_STR "20000"
#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_EVENT 0
#define DFL_READ_TIMEOUT 0
#define DFL_MAX_RESEND 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_ECJPAKE_PW NULL
#define DFL_EC_MAX_OPS -1
#define DFL_FORCE_CIPHER 0
#define DFL_RENEGOTIATION MBEDTLS_SSL_RENEGOTIATION_DISABLED
#define DFL_ALLOW_LEGACY -2
#define DFL_RENEGOTIATE 0
#define DFL_EXCHANGES 1
#define DFL_MIN_VERSION -1
#define DFL_MAX_VERSION -1
#define DFL_ARC4 -1
#define DFL_SHA1 -1
#define DFL_AUTH_MODE -1
#define DFL_MFL_CODE MBEDTLS_SSL_MAX_FRAG_LEN_NONE
#define DFL_TRUNC_HMAC -1
#define DFL_RECSPLIT -1
#define DFL_DHMLEN -1
#define DFL_RECONNECT 0
#define DFL_RECO_DELAY 0
#define DFL_RECONNECT_HARD 0
#define DFL_TICKETS MBEDTLS_SSL_SESSION_TICKETS_ENABLED
#define DFL_ALPN_STRING NULL
#define DFL_CURVES NULL
#define DFL_TRANSPORT MBEDTLS_SSL_TRANSPORT_STREAM
#define DFL_HS_TO_MIN 0
#define DFL_HS_TO_MAX 0
#define DFL_DTLS_MTU -1
#define DFL_DGRAM_PACKING 1
#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"
#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" \
" use \"none\" to skip loading any top-level CAs.\n" \
" ca_path=%%s The path containing the top-level CA(s) you fully trust\n" \
" default: \"\" (pre-loaded) (overrides ca_file)\n" \
" use \"none\" to skip loading any top-level CAs.\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 (MBEDTLS_FS_IO not defined)\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"
#else
#define USAGE_TICKETS ""
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
#define USAGE_TRUNC_HMAC \
" trunc_hmac=%%d default: library default\n"
#else
#define USAGE_TRUNC_HMAC ""
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#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_CBC_RECORD_SPLITTING)
#define USAGE_RECSPLIT \
" recsplit=0/1 default: (library default: on)\n"
#else
#define USAGE_RECSPLIT
#endif
#if defined(MBEDTLS_DHM_C)
#define USAGE_DHMLEN \
" dhmlen=%%d default: (library default: 1024 bits)\n"
#else
#define USAGE_DHMLEN
#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_ECP_C)
#define USAGE_CURVES \
" curves=a,b,c,d default: \"default\" (library default)\n" \
" example: \"secp521r1,brainpoolP512r1\"\n" \
" - use \"none\" for empty list\n" \
" - see mbedtls_ecp_curve_list()\n" \
" for acceptable curve names\n"
#else
#define USAGE_CURVES ""
#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" \
" mtu=%%d default: (library default: unlimited)\n" \
" dgram_packing=%%d default: 1 (allowed)\n" \
" allow or forbid packing of multiple\n" \
" records within a single datgram.\n"
#else
#define USAGE_DTLS ""
#endif
#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
#define USAGE_FALLBACK \
" fallback=0/1 default: (library default: off)\n"
#else
#define USAGE_FALLBACK ""
#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"
#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
#if defined(MBEDTLS_ECP_RESTARTABLE)
#define USAGE_ECRESTART \
" ec_max_ops=%%s default: library default (restart disabled)\n"
#else
#define USAGE_ECRESTART ""
#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: " MAX_REQUEST_SIZE_STR ")\n" \
" If 0, in the first exchange only an empty\n" \
" application data message is sent followed by\n" \
" a second non-empty message before attempting\n" \
" to read a response from the server\n" \
" debug_level=%%d default: 0 (disabled)\n" \
" nbio=%%d default: 0 (blocking I/O)\n" \
" options: 1 (non-blocking), 2 (added delays)\n" \
" event=%%d default: 0 (loop)\n" \
" options: 1 (level-triggered, implies nbio=1),\n" \
" read_timeout=%%d default: 0 ms (no timeout)\n" \
" max_resend=%%d default: 0 (no resend on timeout)\n" \
"\n" \
USAGE_DTLS \
"\n" \
" auth_mode=%%s default: (library default: none)\n" \
" options: none, optional, required\n" \
USAGE_IO \
"\n" \
USAGE_PSK \
USAGE_ECJPAKE \
USAGE_ECRESTART \
"\n" \
" allow_legacy=%%d default: (library default: no)\n" \
USAGE_RENEGO \
" exchanges=%%d default: 1\n" \
" reconnect=%%d default: 0 (disabled)\n" \
" reco_delay=%%d default: 0 seconds\n" \
" reconnect_hard=%%d default: 0 (disabled)\n" \
USAGE_TICKETS \
USAGE_MAX_FRAG_LEN \
USAGE_TRUNC_HMAC \
USAGE_ALPN \
USAGE_FALLBACK \
USAGE_EMS \
USAGE_ETM \
USAGE_CURVES \
USAGE_RECSPLIT \
USAGE_DHMLEN \
"\n" \
" arc4=%%d default: (library default: 0)\n" \
" allow_sha1=%%d 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" \
" force_ciphersuite=<name> default: all enabled\n"\
" query_config=<name> return 0 if the specified\n" \
" configuration macro is defined and 1\n" \
" otherwise. The expansion of the macro\n" \
" is printed if it is defined\n" \
" acceptable ciphersuite names:\n"
#define ALPN_LIST_SIZE 10
#define CURVE_LIST_SIZE 20
/*
* global options
*/
struct options
{
const char *server_name; /* hostname of the server (client only) */
const char *server_addr; /* address of the server (client only) */
const char *server_port; /* port on which the ssl service runs */
int debug_level; /* level of debugging */
int nbio; /* should I/O be blocking? */
int event; /* loop or event-driven IO? level or edge triggered? */
uint32_t read_timeout; /* timeout on mbedtls_ssl_read() in milliseconds */
int max_resend; /* DTLS times to resend on read timeout */
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 */
const char *ecjpake_pw; /* the EC J-PAKE password */
int ec_max_ops; /* EC consecutive operations limit */
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 allow_sha1; /* flag for SHA-1 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 dhmlen; /* minimum DHM params len in bits */
int reconnect; /* attempt to resume session */
int reco_delay; /* delay in seconds before resuming session */
int reconnect_hard; /* unexpectedly reconnect from the same port */
int tickets; /* enable / disable session tickets */
const char *curves; /* list of supported elliptic curves */
const char *alpn_string; /* ALPN supported protocols */
int transport; /* TLS or DTLS? */
uint32_t hs_to_min; /* Initial value of DTLS handshake timer */
uint32_t hs_to_max; /* Max value of DTLS handshake timer */
int dtls_mtu; /* UDP Maximum tranport unit for DTLS */
int fallback; /* is this a fallback connection? */
int dgram_packing; /* allow/forbid datagram packing */
int extended_ms; /* negotiate extended master secret? */
int etm; /* negotiate encrypt then mac? */
} opt;
int query_config( const char *config );
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 );
}
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/*
* Enabled if debug_level > 1 in code below
*/
static int my_verify( void *data, mbedtls_x509_crt *crt,
int depth, uint32_t *flags )
{
char buf[1024];
((void) data);
mbedtls_printf( "\nVerify requested for (Depth %d):\n", depth );
mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
mbedtls_printf( "%s", buf );
if ( ( *flags ) == 0 )
mbedtls_printf( " This certificate has no flags\n" );
else
{
mbedtls_x509_crt_verify_info( buf, sizeof( buf ), " ! ", *flags );
mbedtls_printf( "%s\n", buf );
}
return( 0 );
}
static int ssl_sig_hashes_for_test[] = {
#if defined(MBEDTLS_SHA512_C)
MBEDTLS_MD_SHA512,
MBEDTLS_MD_SHA384,
#endif
#if defined(MBEDTLS_SHA256_C)
MBEDTLS_MD_SHA256,
MBEDTLS_MD_SHA224,
#endif
#if defined(MBEDTLS_SHA1_C)
/* Allow SHA-1 as we use it extensively in tests. */
MBEDTLS_MD_SHA1,
#endif
MBEDTLS_MD_NONE
};
#endif /* MBEDTLS_X509_CRT_PARSE_C */
/*
* Wait for an event from the underlying transport or the timer
* (Used in event-driven IO mode).
*/
#if !defined(MBEDTLS_TIMING_C)
int idle( mbedtls_net_context *fd,
int idle_reason )
#else
int idle( mbedtls_net_context *fd,
mbedtls_timing_delay_context *timer,
int idle_reason )
#endif
{
int ret;
int poll_type = 0;
if( idle_reason == MBEDTLS_ERR_SSL_WANT_WRITE )
poll_type = MBEDTLS_NET_POLL_WRITE;
else if( idle_reason == MBEDTLS_ERR_SSL_WANT_READ )
poll_type = MBEDTLS_NET_POLL_READ;
#if !defined(MBEDTLS_TIMING_C)
else
return( 0 );
#endif
while( 1 )
{
/* Check if timer has expired */
#if defined(MBEDTLS_TIMING_C)
if( timer != NULL &&
mbedtls_timing_get_delay( timer ) == 2 )
{
break;
}
#endif /* MBEDTLS_TIMING_C */
/* Check if underlying transport became available */
if( poll_type != 0 )
{
ret = mbedtls_net_poll( fd, poll_type, 0 );
if( ret < 0 )
return( ret );
if( ret == poll_type )
break;
}
}
return( 0 );
}
int main( int argc, char *argv[] )
{
int ret = 0, len, tail_len, i, written, frags, retry_left;
mbedtls_net_context server_fd;
unsigned char buf[MAX_REQUEST_SIZE + 1];
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
unsigned char psk[MBEDTLS_PSK_MAX_LEN];
size_t psk_len = 0;
#endif
#if defined(MBEDTLS_SSL_ALPN)
const char *alpn_list[ALPN_LIST_SIZE];
#endif
#if defined(MBEDTLS_ECP_C)
mbedtls_ecp_group_id curve_list[CURVE_LIST_SIZE];
const mbedtls_ecp_curve_info *curve_cur;
#endif
const char *pers = "ssl_client2";
#if defined(MBEDTLS_X509_CRT_PARSE_C)
mbedtls_x509_crt_profile crt_profile_for_test = mbedtls_x509_crt_profile_default;
#endif
mbedtls_entropy_context entropy;
mbedtls_ctr_drbg_context ctr_drbg;
mbedtls_ssl_context ssl;
mbedtls_ssl_config conf;
mbedtls_ssl_session saved_session;
#if defined(MBEDTLS_TIMING_C)
mbedtls_timing_delay_context timer;
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C)
uint32_t flags;
mbedtls_x509_crt cacert;
mbedtls_x509_crt clicert;
mbedtls_pk_context pkey;
#endif
char *p, *q;
const int *list;
/*
* Make sure memory references are valid.
*/
mbedtls_net_init( &server_fd );
mbedtls_ssl_init( &ssl );
mbedtls_ssl_config_init( &conf );
memset( &saved_session, 0, sizeof( mbedtls_ssl_session ) );
mbedtls_ctr_drbg_init( &ctr_drbg );
#if defined(MBEDTLS_X509_CRT_PARSE_C)
mbedtls_x509_crt_init( &cacert );
mbedtls_x509_crt_init( &clicert );
mbedtls_pk_init( &pkey );
#endif
#if defined(MBEDTLS_SSL_ALPN)
memset( (void * ) alpn_list, 0, sizeof( alpn_list ) );
#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_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.event = DFL_EVENT;
opt.read_timeout = DFL_READ_TIMEOUT;
opt.max_resend = DFL_MAX_RESEND;
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.ecjpake_pw = DFL_ECJPAKE_PW;
opt.ec_max_ops = DFL_EC_MAX_OPS;
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.allow_sha1 = DFL_SHA1;
opt.auth_mode = DFL_AUTH_MODE;
opt.mfl_code = DFL_MFL_CODE;
opt.trunc_hmac = DFL_TRUNC_HMAC;
opt.recsplit = DFL_RECSPLIT;
opt.dhmlen = DFL_DHMLEN;
opt.reconnect = DFL_RECONNECT;
opt.reco_delay = DFL_RECO_DELAY;
opt.reconnect_hard = DFL_RECONNECT_HARD;
opt.tickets = DFL_TICKETS;
opt.alpn_string = DFL_ALPN_STRING;
opt.curves = DFL_CURVES;
opt.transport = DFL_TRANSPORT;
opt.hs_to_min = DFL_HS_TO_MIN;
opt.hs_to_max = DFL_HS_TO_MAX;
opt.dtls_mtu = DFL_DTLS_MTU;
opt.fallback = DFL_FALLBACK;
opt.extended_ms = DFL_EXTENDED_MS;
opt.etm = DFL_ETM;
opt.dgram_packing = DFL_DGRAM_PACKING;
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 = 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, "event" ) == 0 )
{
opt.event = atoi( q );
if( opt.event < 0 || opt.event > 2 )
goto usage;
}
else if( strcmp( p, "read_timeout" ) == 0 )
opt.read_timeout = atoi( q );
else if( strcmp( p, "max_resend" ) == 0 )
{
opt.max_resend = atoi( q );
if( opt.max_resend < 0 )
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 > MAX_REQUEST_SIZE )
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, "ecjpake_pw" ) == 0 )
opt.ecjpake_pw = q;
else if( strcmp( p, "ec_max_ops" ) == 0 )
opt.ec_max_ops = atoi( 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, "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, "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, "reconnect_hard" ) == 0 )
{
opt.reconnect_hard = atoi( q );
if( opt.reconnect_hard < 0 || opt.reconnect_hard > 1 )
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 = MBEDTLS_SSL_IS_NOT_FALLBACK; break;
case 1: opt.fallback = MBEDTLS_SSL_IS_FALLBACK; 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, "curves" ) == 0 )
opt.curves = q;
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, "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, "allow_sha1" ) == 0 )
{
switch( atoi( q ) )
{
case 0: opt.allow_sha1 = 0; break;
case 1: opt.allow_sha1 = 1; 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( strcmp( q, "none" ) == 0 )
opt.auth_mode = MBEDTLS_SSL_VERIFY_NONE;
else if( strcmp( q, "optional" ) == 0 )
opt.auth_mode = MBEDTLS_SSL_VERIFY_OPTIONAL;
else if( strcmp( q, "required" ) == 0 )
opt.auth_mode = MBEDTLS_SSL_VERIFY_REQUIRED;
else
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, "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, "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, "mtu" ) == 0 )
{
opt.dtls_mtu = atoi( q );
if( opt.dtls_mtu < 0 )
goto usage;
}
else if( strcmp( p, "dgram_packing" ) == 0 )
{
opt.dgram_packing = atoi( q );
if( opt.dgram_packing != 0 &&
opt.dgram_packing != 1 )
{
goto usage;
}
}
else if( strcmp( p, "recsplit" ) == 0 )
{
opt.recsplit = atoi( q );
if( opt.recsplit < 0 || opt.recsplit > 1 )
goto usage;
}
else if( strcmp( p, "dhmlen" ) == 0 )
{
opt.dhmlen = atoi( q );
if( opt.dhmlen < 0 )
goto usage;
}
else if( strcmp( p, "query_config" ) == 0 )
{
return query_config( q );
}
else
goto usage;
}
/* Event-driven IO is incompatible with the above custom