Mark Radbourne / mbedtls

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Dependents:   Encrypt_Decrypt1 mbed_blink_tls encrypt encrypt

tests/suites/test_suite_asn1write.function@0:cdf462088d13, 2017-01-05 (annotated)

Committer:
markrad
Date:
Thu Jan 05 00:18:44 2017 +0000
Revision:
0:cdf462088d13
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
markrad 0:cdf462088d13 1 /* BEGIN_HEADER */
markrad 0:cdf462088d13 2 #include "mbedtls/asn1write.h"
markrad 0:cdf462088d13 3
markrad 0:cdf462088d13 4 #define GUARD_LEN 4
markrad 0:cdf462088d13 5 #define GUARD_VAL 0x2a
markrad 0:cdf462088d13 6 /* END_HEADER */
markrad 0:cdf462088d13 7
markrad 0:cdf462088d13 8 /* BEGIN_DEPENDENCIES
markrad 0:cdf462088d13 9 * depends_on:MBEDTLS_ASN1_WRITE_C
markrad 0:cdf462088d13 10 * END_DEPENDENCIES
markrad 0:cdf462088d13 11 */
markrad 0:cdf462088d13 12
markrad 0:cdf462088d13 13 /* BEGIN_CASE */
markrad 0:cdf462088d13 14 void mbedtls_asn1_write_octet_string( char *hex_str, char *hex_asn1,
markrad 0:cdf462088d13 15 int buf_len, int result )
markrad 0:cdf462088d13 16 {
markrad 0:cdf462088d13 17 int ret;
markrad 0:cdf462088d13 18 unsigned char buf[150];
markrad 0:cdf462088d13 19 unsigned char str[150] = { 0 };
markrad 0:cdf462088d13 20 unsigned char asn1[150] = { 0 };
markrad 0:cdf462088d13 21 size_t str_len, asn1_len, i;
markrad 0:cdf462088d13 22 unsigned char *p;
markrad 0:cdf462088d13 23
markrad 0:cdf462088d13 24 memset( buf, GUARD_VAL, sizeof( buf ) );
markrad 0:cdf462088d13 25
markrad 0:cdf462088d13 26 str_len = unhexify( str, hex_str );
markrad 0:cdf462088d13 27 asn1_len = unhexify( asn1, hex_asn1 );
markrad 0:cdf462088d13 28
markrad 0:cdf462088d13 29 p = buf + GUARD_LEN + buf_len;
markrad 0:cdf462088d13 30
markrad 0:cdf462088d13 31 ret = mbedtls_asn1_write_octet_string( &p, buf + GUARD_LEN, str, str_len );
markrad 0:cdf462088d13 32
markrad 0:cdf462088d13 33 /* Check for buffer overwrite on both sides */
markrad 0:cdf462088d13 34 for( i = 0; i < GUARD_LEN; i++ )
markrad 0:cdf462088d13 35 {
markrad 0:cdf462088d13 36 TEST_ASSERT( buf[i] == GUARD_VAL );
markrad 0:cdf462088d13 37 TEST_ASSERT( buf[GUARD_LEN + buf_len + i] == GUARD_VAL );
markrad 0:cdf462088d13 38 }
markrad 0:cdf462088d13 39
markrad 0:cdf462088d13 40 if( result >= 0 )
markrad 0:cdf462088d13 41 {
markrad 0:cdf462088d13 42 TEST_ASSERT( (size_t) ret == asn1_len );
markrad 0:cdf462088d13 43 TEST_ASSERT( p + asn1_len == buf + GUARD_LEN + buf_len );
markrad 0:cdf462088d13 44
markrad 0:cdf462088d13 45 TEST_ASSERT( memcmp( p, asn1, asn1_len ) == 0 );
markrad 0:cdf462088d13 46 }
markrad 0:cdf462088d13 47 }
markrad 0:cdf462088d13 48 /* END_CASE */
markrad 0:cdf462088d13 49
markrad 0:cdf462088d13 50 /* BEGIN_CASE */
markrad 0:cdf462088d13 51 void mbedtls_asn1_write_ia5_string( char *str, char *hex_asn1,
markrad 0:cdf462088d13 52 int buf_len, int result )
markrad 0:cdf462088d13 53 {
markrad 0:cdf462088d13 54 int ret;
markrad 0:cdf462088d13 55 unsigned char buf[150];
markrad 0:cdf462088d13 56 unsigned char asn1[150] = { 0 };
markrad 0:cdf462088d13 57 size_t str_len, asn1_len, i;
markrad 0:cdf462088d13 58 unsigned char *p;
markrad 0:cdf462088d13 59
markrad 0:cdf462088d13 60 memset( buf, GUARD_VAL, sizeof( buf ) );
markrad 0:cdf462088d13 61
markrad 0:cdf462088d13 62 str_len = strlen( str );
markrad 0:cdf462088d13 63 asn1_len = unhexify( asn1, hex_asn1 );
markrad 0:cdf462088d13 64
markrad 0:cdf462088d13 65 p = buf + GUARD_LEN + buf_len;
markrad 0:cdf462088d13 66
markrad 0:cdf462088d13 67 ret = mbedtls_asn1_write_ia5_string( &p, buf + GUARD_LEN, str, str_len );
markrad 0:cdf462088d13 68
markrad 0:cdf462088d13 69 /* Check for buffer overwrite on both sides */
markrad 0:cdf462088d13 70 for( i = 0; i < GUARD_LEN; i++ )
markrad 0:cdf462088d13 71 {
markrad 0:cdf462088d13 72 TEST_ASSERT( buf[i] == GUARD_VAL );
markrad 0:cdf462088d13 73 TEST_ASSERT( buf[GUARD_LEN + buf_len + i] == GUARD_VAL );
markrad 0:cdf462088d13 74 }
markrad 0:cdf462088d13 75
markrad 0:cdf462088d13 76 if( result >= 0 )
markrad 0:cdf462088d13 77 {
markrad 0:cdf462088d13 78 TEST_ASSERT( (size_t) ret == asn1_len );
markrad 0:cdf462088d13 79 TEST_ASSERT( p + asn1_len == buf + GUARD_LEN + buf_len );
markrad 0:cdf462088d13 80
markrad 0:cdf462088d13 81 TEST_ASSERT( memcmp( p, asn1, asn1_len ) == 0 );
markrad 0:cdf462088d13 82 }
markrad 0:cdf462088d13 83 }
markrad 0:cdf462088d13 84 /* END_CASE */
markrad 0:cdf462088d13 85
markrad 0:cdf462088d13 86 /* BEGIN_CASE */
markrad 0:cdf462088d13 87 void mbedtls_asn1_write_len( int len, char *check_str, int buf_len,
markrad 0:cdf462088d13 88 int result )
markrad 0:cdf462088d13 89 {
markrad 0:cdf462088d13 90 int ret;
markrad 0:cdf462088d13 91 unsigned char buf[150];
markrad 0:cdf462088d13 92 unsigned char asn1[150];
markrad 0:cdf462088d13 93 unsigned char *p;
markrad 0:cdf462088d13 94 size_t asn1_len, i, read_len;
markrad 0:cdf462088d13 95
markrad 0:cdf462088d13 96 memset( buf, GUARD_VAL, sizeof( buf ) );
markrad 0:cdf462088d13 97 memset( asn1, 0, sizeof( asn1 ) );
markrad 0:cdf462088d13 98 asn1_len = unhexify( asn1, check_str );
markrad 0:cdf462088d13 99
markrad 0:cdf462088d13 100 p = buf + GUARD_LEN + buf_len;
markrad 0:cdf462088d13 101
markrad 0:cdf462088d13 102 ret = mbedtls_asn1_write_len( &p, buf + GUARD_LEN, (size_t) len );
markrad 0:cdf462088d13 103
markrad 0:cdf462088d13 104 TEST_ASSERT( ret == result );
markrad 0:cdf462088d13 105
markrad 0:cdf462088d13 106 /* Check for buffer overwrite on both sides */
markrad 0:cdf462088d13 107 for( i = 0; i < GUARD_LEN; i++ )
markrad 0:cdf462088d13 108 {
markrad 0:cdf462088d13 109 TEST_ASSERT( buf[i] == GUARD_VAL );
markrad 0:cdf462088d13 110 TEST_ASSERT( buf[GUARD_LEN + buf_len + i] == GUARD_VAL );
markrad 0:cdf462088d13 111 }
markrad 0:cdf462088d13 112
markrad 0:cdf462088d13 113 if( result >= 0 )
markrad 0:cdf462088d13 114 {
markrad 0:cdf462088d13 115 TEST_ASSERT( (size_t) ret == asn1_len );
markrad 0:cdf462088d13 116 TEST_ASSERT( p + asn1_len == buf + GUARD_LEN + buf_len );
markrad 0:cdf462088d13 117
markrad 0:cdf462088d13 118 TEST_ASSERT( memcmp( p, asn1, asn1_len ) == 0 );
markrad 0:cdf462088d13 119
markrad 0:cdf462088d13 120 /* Read back with mbedtls_asn1_get_len() to check */
markrad 0:cdf462088d13 121 ret = mbedtls_asn1_get_len( &p, buf + GUARD_LEN + buf_len, &read_len );
markrad 0:cdf462088d13 122
markrad 0:cdf462088d13 123 if( len == 0 )
markrad 0:cdf462088d13 124 {
markrad 0:cdf462088d13 125 TEST_ASSERT( ret == 0 );
markrad 0:cdf462088d13 126 }
markrad 0:cdf462088d13 127 else
markrad 0:cdf462088d13 128 {
markrad 0:cdf462088d13 129 /* Return will be MBEDTLS_ERR_ASN1_OUT_OF_DATA because the rest of
markrad 0:cdf462088d13 130 * the buffer is missing
markrad 0:cdf462088d13 131 */
markrad 0:cdf462088d13 132 TEST_ASSERT( ret == MBEDTLS_ERR_ASN1_OUT_OF_DATA );
markrad 0:cdf462088d13 133 }
markrad 0:cdf462088d13 134 TEST_ASSERT( read_len == (size_t) len );
markrad 0:cdf462088d13 135 TEST_ASSERT( p == buf + GUARD_LEN + buf_len );
markrad 0:cdf462088d13 136 }
markrad 0:cdf462088d13 137 }
markrad 0:cdf462088d13 138 /* END_CASE */