diff options
Diffstat (limited to 'lib/mbedtls-2.27.0/programs/x509/cert_app.c')
| -rw-r--r-- | lib/mbedtls-2.27.0/programs/x509/cert_app.c | 502 |
1 files changed, 502 insertions, 0 deletions
diff --git a/lib/mbedtls-2.27.0/programs/x509/cert_app.c b/lib/mbedtls-2.27.0/programs/x509/cert_app.c new file mode 100644 index 0000000..89b25a8 --- /dev/null +++ b/lib/mbedtls-2.27.0/programs/x509/cert_app.c @@ -0,0 +1,502 @@ +/* + * Certificate reading application + * + * Copyright The Mbed TLS Contributors + * 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. + */ + +#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_fprintf fprintf +#define mbedtls_printf printf +#define mbedtls_exit exit +#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS +#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE +#endif /* MBEDTLS_PLATFORM_C */ + +#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_ENTROPY_C) || \ + !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_CLI_C) || \ + !defined(MBEDTLS_NET_C) || !defined(MBEDTLS_RSA_C) || \ + !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_FS_IO) || \ + !defined(MBEDTLS_CTR_DRBG_C) +int main( void ) +{ + mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_ENTROPY_C and/or " + "MBEDTLS_SSL_TLS_C and/or MBEDTLS_SSL_CLI_C and/or " + "MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or " + "MBEDTLS_X509_CRT_PARSE_C and/or MBEDTLS_FS_IO and/or " + "MBEDTLS_CTR_DRBG_C not defined.\n"); + mbedtls_exit( 0 ); +} +#else + +#include "mbedtls/entropy.h" +#include "mbedtls/ctr_drbg.h" +#include "mbedtls/net_sockets.h" +#include "mbedtls/ssl.h" +#include "mbedtls/x509.h" +#include "mbedtls/debug.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define MODE_NONE 0 +#define MODE_FILE 1 +#define MODE_SSL 2 + +#define DFL_MODE MODE_NONE +#define DFL_FILENAME "cert.crt" +#define DFL_CA_FILE "" +#define DFL_CRL_FILE "" +#define DFL_CA_PATH "" +#define DFL_SERVER_NAME "localhost" +#define DFL_SERVER_PORT "4433" +#define DFL_DEBUG_LEVEL 0 +#define DFL_PERMISSIVE 0 + +#define USAGE_IO \ + " ca_file=%%s The single file containing the top-level CA(s) you fully trust\n" \ + " default: \"\" (none)\n" \ + " crl_file=%%s The single CRL file you want to use\n" \ + " default: \"\" (none)\n" \ + " ca_path=%%s The path containing the top-level CA(s) you fully trust\n" \ + " default: \"\" (none) (overrides ca_file)\n" + +#define USAGE \ + "\n usage: cert_app param=<>...\n" \ + "\n acceptable parameters:\n" \ + " mode=file|ssl default: none\n" \ + " filename=%%s default: cert.crt\n" \ + USAGE_IO \ + " server_name=%%s default: localhost\n" \ + " server_port=%%d default: 4433\n" \ + " debug_level=%%d default: 0 (disabled)\n" \ + " permissive=%%d default: 0 (disabled)\n" \ + "\n" + + +/* + * global options + */ +struct options +{ + int mode; /* the mode to run the application in */ + const char *filename; /* filename of the certificate file */ + const char *ca_file; /* the file with the CA certificate(s) */ + const char *crl_file; /* the file with the CRL to use */ + const char *ca_path; /* the path with the CA certificate(s) reside */ + const char *server_name; /* hostname of the server (client only) */ + const char *server_port; /* port on which the ssl service runs */ + int debug_level; /* level of debugging */ + int permissive; /* permissive parsing */ +} opt; + +static void my_debug( void *ctx, int level, + const char *file, int line, + const char *str ) +{ + ((void) level); + + mbedtls_fprintf( (FILE *) ctx, "%s:%04d: %s", file, line, str ); + fflush( (FILE *) ctx ); +} + +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 ); +} + +int main( int argc, char *argv[] ) +{ + int ret = 1; + int exit_code = MBEDTLS_EXIT_FAILURE; + mbedtls_net_context server_fd; + unsigned char buf[1024]; + mbedtls_entropy_context entropy; + mbedtls_ctr_drbg_context ctr_drbg; + mbedtls_ssl_context ssl; + mbedtls_ssl_config conf; + mbedtls_x509_crt cacert; + mbedtls_x509_crl cacrl; + int i, j; + uint32_t flags; + int verify = 0; + char *p, *q; + const char *pers = "cert_app"; + + /* + * Set to sane values + */ + mbedtls_net_init( &server_fd ); + mbedtls_ctr_drbg_init( &ctr_drbg ); + mbedtls_ssl_init( &ssl ); + mbedtls_ssl_config_init( &conf ); + mbedtls_x509_crt_init( &cacert ); +#if defined(MBEDTLS_X509_CRL_PARSE_C) + mbedtls_x509_crl_init( &cacrl ); +#else + /* Zeroize structure as CRL parsing is not supported and we have to pass + it to the verify function */ + memset( &cacrl, 0, sizeof(mbedtls_x509_crl) ); +#endif + + if( argc == 0 ) + { + usage: + mbedtls_printf( USAGE ); + goto exit; + } + + opt.mode = DFL_MODE; + opt.filename = DFL_FILENAME; + opt.ca_file = DFL_CA_FILE; + opt.crl_file = DFL_CRL_FILE; + opt.ca_path = DFL_CA_PATH; + opt.server_name = DFL_SERVER_NAME; + opt.server_port = DFL_SERVER_PORT; + opt.debug_level = DFL_DEBUG_LEVEL; + opt.permissive = DFL_PERMISSIVE; + + for( i = 1; i < argc; i++ ) + { + p = argv[i]; + if( ( q = strchr( p, '=' ) ) == NULL ) + goto usage; + *q++ = '\0'; + + for( j = 0; p + j < q; j++ ) + { + if( argv[i][j] >= 'A' && argv[i][j] <= 'Z' ) + argv[i][j] |= 0x20; + } + + if( strcmp( p, "mode" ) == 0 ) + { + if( strcmp( q, "file" ) == 0 ) + opt.mode = MODE_FILE; + else if( strcmp( q, "ssl" ) == 0 ) + opt.mode = MODE_SSL; + else + goto usage; + } + else if( strcmp( p, "filename" ) == 0 ) + opt.filename = q; + else if( strcmp( p, "ca_file" ) == 0 ) + opt.ca_file = q; + else if( strcmp( p, "crl_file" ) == 0 ) + opt.crl_file = q; + else if( strcmp( p, "ca_path" ) == 0 ) + opt.ca_path = q; + else if( strcmp( p, "server_name" ) == 0 ) + opt.server_name = q; + else if( strcmp( p, "server_port" ) == 0 ) + opt.server_port = q; + 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, "permissive" ) == 0 ) + { + opt.permissive = atoi( q ); + if( opt.permissive < 0 || opt.permissive > 1 ) + goto usage; + } + else + goto usage; + } + + /* + * 1.1. Load the trusted CA + */ + mbedtls_printf( " . Loading the CA root certificate ..." ); + fflush( stdout ); + + if( strlen( opt.ca_path ) ) + { + if( ( ret = mbedtls_x509_crt_parse_path( &cacert, opt.ca_path ) ) < 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse_path returned -0x%x\n\n", (unsigned int) -ret ); + goto exit; + } + + verify = 1; + } + else if( strlen( opt.ca_file ) ) + { + if( ( ret = mbedtls_x509_crt_parse_file( &cacert, opt.ca_file ) ) < 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse_file returned -0x%x\n\n", (unsigned int) -ret ); + goto exit; + } + + verify = 1; + } + + mbedtls_printf( " ok (%d skipped)\n", ret ); + +#if defined(MBEDTLS_X509_CRL_PARSE_C) + if( strlen( opt.crl_file ) ) + { + if( ( ret = mbedtls_x509_crl_parse_file( &cacrl, opt.crl_file ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crl_parse returned -0x%x\n\n", (unsigned int) -ret ); + goto exit; + } + + verify = 1; + } +#endif + + if( opt.mode == MODE_FILE ) + { + mbedtls_x509_crt crt; + mbedtls_x509_crt *cur = &crt; + mbedtls_x509_crt_init( &crt ); + + /* + * 1.1. Load the certificate(s) + */ + mbedtls_printf( "\n . Loading the certificate(s) ..." ); + fflush( stdout ); + + ret = mbedtls_x509_crt_parse_file( &crt, opt.filename ); + + if( ret < 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse_file returned %d\n\n", ret ); + mbedtls_x509_crt_free( &crt ); + goto exit; + } + + if( opt.permissive == 0 && ret > 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_parse failed to parse %d certificates\n\n", ret ); + mbedtls_x509_crt_free( &crt ); + goto exit; + } + + mbedtls_printf( " ok\n" ); + + /* + * 1.2 Print the certificate(s) + */ + while( cur != NULL ) + { + mbedtls_printf( " . Peer certificate information ...\n" ); + ret = mbedtls_x509_crt_info( (char *) buf, sizeof( buf ) - 1, " ", + cur ); + if( ret == -1 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_info returned %d\n\n", ret ); + mbedtls_x509_crt_free( &crt ); + goto exit; + } + + mbedtls_printf( "%s\n", buf ); + + cur = cur->next; + } + + /* + * 1.3 Verify the certificate + */ + if( verify ) + { + mbedtls_printf( " . Verifying X.509 certificate..." ); + + if( ( ret = mbedtls_x509_crt_verify( &crt, &cacert, &cacrl, NULL, &flags, + my_verify, NULL ) ) != 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" ); + } + + mbedtls_x509_crt_free( &crt ); + } + else if( opt.mode == MODE_SSL ) + { + /* + * 1. 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 %d\n", ret ); + goto ssl_exit; + } + + mbedtls_printf( " ok\n" ); + +#if defined(MBEDTLS_DEBUG_C) + mbedtls_debug_set_threshold( opt.debug_level ); +#endif + + /* + * 2. Start the connection + */ + mbedtls_printf( " . SSL connection to tcp/%s/%s...", opt.server_name, + opt.server_port ); + fflush( stdout ); + + if( ( ret = mbedtls_net_connect( &server_fd, opt.server_name, + opt.server_port, MBEDTLS_NET_PROTO_TCP ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_net_connect returned %d\n\n", ret ); + goto ssl_exit; + } + + /* + * 3. Setup stuff + */ + if( ( ret = mbedtls_ssl_config_defaults( &conf, + MBEDTLS_SSL_IS_CLIENT, + MBEDTLS_SSL_TRANSPORT_STREAM, + MBEDTLS_SSL_PRESET_DEFAULT ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_config_defaults returned %d\n\n", ret ); + goto exit; + } + + if( verify ) + { + mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_REQUIRED ); + mbedtls_ssl_conf_ca_chain( &conf, &cacert, NULL ); + mbedtls_ssl_conf_verify( &conf, my_verify, NULL ); + } + else + mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_NONE ); + + mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg ); + mbedtls_ssl_conf_dbg( &conf, my_debug, stdout ); + + if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_setup returned %d\n\n", ret ); + goto ssl_exit; + } + + if( ( ret = mbedtls_ssl_set_hostname( &ssl, opt.server_name ) ) != 0 ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_set_hostname returned %d\n\n", ret ); + goto ssl_exit; + } + + mbedtls_ssl_set_bio( &ssl, &server_fd, mbedtls_net_send, mbedtls_net_recv, NULL ); + + /* + * 4. Handshake + */ + while( ( ret = mbedtls_ssl_handshake( &ssl ) ) != 0 ) + { + if( ret != MBEDTLS_ERR_SSL_WANT_READ && ret != MBEDTLS_ERR_SSL_WANT_WRITE ) + { + mbedtls_printf( " failed\n ! mbedtls_ssl_handshake returned %d\n\n", ret ); + goto ssl_exit; + } + } + + mbedtls_printf( " ok\n" ); + + /* + * 5. Print the certificate + */ +#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) + mbedtls_printf( " . Peer certificate information ... skipped\n" ); +#else + mbedtls_printf( " . Peer certificate information ...\n" ); + ret = mbedtls_x509_crt_info( (char *) buf, sizeof( buf ) - 1, " ", + mbedtls_ssl_get_peer_cert( &ssl ) ); + if( ret == -1 ) + { + mbedtls_printf( " failed\n ! mbedtls_x509_crt_info returned %d\n\n", ret ); + goto ssl_exit; + } + + mbedtls_printf( "%s\n", buf ); +#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */ + + mbedtls_ssl_close_notify( &ssl ); + +ssl_exit: + mbedtls_ssl_free( &ssl ); + mbedtls_ssl_config_free( &conf ); + } + else + goto usage; + + exit_code = MBEDTLS_EXIT_SUCCESS; + +exit: + + mbedtls_net_free( &server_fd ); + mbedtls_x509_crt_free( &cacert ); +#if defined(MBEDTLS_X509_CRL_PARSE_C) + mbedtls_x509_crl_free( &cacrl ); +#endif + mbedtls_ctr_drbg_free( &ctr_drbg ); + mbedtls_entropy_free( &entropy ); + +#if defined(_WIN32) + mbedtls_printf( " + Press Enter to exit this program.\n" ); + fflush( stdout ); getchar(); +#endif + + mbedtls_exit( exit_code ); +} +#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_SSL_TLS_C && + MBEDTLS_SSL_CLI_C && MBEDTLS_NET_C && MBEDTLS_RSA_C && + MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_FS_IO && MBEDTLS_CTR_DRBG_C */ |