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修改chello_parse函数,支持解析supported_versions, supported_groups,signature_algorithms,修改cipher_suites解析结果为原始报文

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This commit is contained in:
崔一鸣
2019-05-24 20:21:55 +08:00
parent 7a8561ae5a
commit 75208aad0f
4 changed files with 360 additions and 360 deletions
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38
platform/CMakeLists.txt
View File

@@ -1,5 +1,5 @@
add_executable(tfe src/key_keeper.cpp src/kni_acceptor.cpp src/ssl_stream.cpp add_executable(tfe src/key_keeper.cpp src/kni_acceptor.cpp src/ssl_stream.cpp
src/ssl_sess_cache.cpp src/ssl_sess_ticket.cpp src/ssl_service_cache.cpp src/ssl_sess_cache.cpp src/ssl_service_cache.cpp
src/ssl_trusted_cert_storage.cpp src/ev_root_ca_metadata.cpp src/ssl_utils.cpp src/ssl_trusted_cert_storage.cpp src/ev_root_ca_metadata.cpp src/ssl_utils.cpp
src/tcp_stream.cpp src/main.cpp src/proxy.cpp) src/tcp_stream.cpp src/main.cpp src/proxy.cpp)
@@ -34,15 +34,11 @@ if(ENABLE_PLUGIN_PANGU_HTTP)
target_link_libraries(tfe -Wl,--whole-archive pangu-http -Wl,--no-whole-archive) target_link_libraries(tfe -Wl,--whole-archive pangu-http -Wl,--no-whole-archive)
endif() endif()
if(ENABLE_PLUGIN_HTTP2)
target_link_libraries(tfe -Wl,--whole-archive http2 -Wl,--no-whole-archive)
endif()
if(ENABLE_PLUGIN_SSL_POLICY) if(ENABLE_PLUGIN_SSL_POLICY)
target_link_libraries(tfe -Wl,--whole-archive ssl-policy -Wl,--no-whole-archive) target_link_libraries(tfe -Wl,--whole-archive ssl-policy -Wl,--no-whole-archive)
endif() endif()
install(TARGETS tfe RUNTIME DESTINATION bin COMPONENT Program) install(TARGETS tfe RUNTIME DESTINATION bin COMPONENT Program)
#### test_key_keeper #### test_key_keeper
@@ -84,19 +80,19 @@ install(TARGETS tfe RUNTIME DESTINATION bin COMPONENT Program)
# MESA_field_stat) # MESA_field_stat)
# #
#### test_chello_parse #### test_chello_parse
#add_executable(test_chello_parse test/test_chello_parse.cpp src/ssl_utils.cpp) add_executable(test_chello_parse test/test_chello_parse.cpp src/ssl_utils.cpp)
#
#target_include_directories(test_chello_parse PRIVATE ${CMAKE_CURRENT_LIST_DIR}/include/internal) target_include_directories(test_chello_parse PRIVATE ${CMAKE_CURRENT_LIST_DIR}/include/internal)
#
#target_link_libraries(test_chello_parse common) target_link_libraries(test_chello_parse common)
#target_link_libraries(test_chello_parse pthread dl target_link_libraries(test_chello_parse pthread dl
# openssl-ssl-static openssl-ssl-static
# openssl-crypto-static openssl-crypto-static
# pthread libevent-static pthread libevent-static
# libevent-static-openssl libevent-static-openssl
# libevent-static-pthreads libevent-static-pthreads
# MESA_handle_logger MESA_handle_logger
# MESA_prof_load MESA_prof_load
# MESA_htable wiredcfg MESA_htable wiredcfg
# cjson cjson
# MESA_field_stat) MESA_field_stat)

14
platform/include/internal/ssl_utils.h
View File

@@ -191,7 +191,7 @@ enum chello_parse_result
struct ssl_version struct ssl_version
{ {
uint8_t minor; uint8_t minor;
uint8_t major; uint8_t major;
uint16_t ossl_format; uint16_t ossl_format;
}; };
@@ -201,10 +201,14 @@ struct ssl_chello
struct ssl_version min_version; struct ssl_version min_version;
struct ssl_version max_version; struct ssl_version max_version;
char* sni; char *sni;
char* alpn; char *alpn;
char* cipher_suites; char *sign_algos;
char* cipher_suites_tls13; uint16_t sign_algos_len;
char *supported_groups;
uint16_t supported_groups_len;
char *cipher_suites;
uint16_t cipher_suites_len;
}; };
struct ssl_chello* ssl_chello_parse(const unsigned char* buff, size_t buff_len, int parse_cipher, enum chello_parse_result* result); struct ssl_chello* ssl_chello_parse(const unsigned char* buff, size_t buff_len, int parse_cipher, enum chello_parse_result* result);

439
platform/src/ssl_utils.cpp
View File

@@ -1073,7 +1073,7 @@ char* ssl_X509_print_name(X509_NAME* name)
// Now, put the name line into the BIO. // Now, put the name line into the BIO.
X509_NAME_print_ex(name_Bio, name, 0, XN_FLAG_ONELINE); X509_NAME_print_ex(name_Bio, name, 0, XN_FLAG_ONELINE);
// Obtain a reference to the data and copy out // Obtain a reference to the data and copy out
// just the length of the data. // just the length of the data.
char *data_start = NULL; char *data_start = NULL;
char *name_string = NULL; char *name_string = NULL;
@@ -1723,241 +1723,190 @@ int ssl_is_ocspreq(const unsigned char * buf, size_t sz)
return 1; return 1;
} }
struct cipher_suite
{
int value;
const char* name;
};
struct cipher_suite cipher_suite_list[] =
{
{0xC030, "ECDHE-RSA-AES256-GCM-SHA384"},
{0xC02C, "ECDHE-ECDSA-AES256-GCM-SHA384"},
{0xC028, "ECDHE-RSA-AES256-SHA384"},
{0xC024, "ECDHE-ECDSA-AES256-SHA384"},
{0xC014, "ECDHE-RSA-AES256-SHA"},
{0xC00A, "ECDHE-ECDSA-AES256-SHA"},
{0x00A5, "DH-DSS-AES256-GCM-SHA384"},
{0x00A3, "DHE-DSS-AES256-GCM-SHA384"},
{0x00A1, "DH-RSA-AES256-GCM-SHA384"},
{0x009F, "DHE-RSA-AES256-GCM-SHA384"},
{0x006B, "DHE-RSA-AES256-SHA256"},
{0x006A, "DHE-DSS-AES256-SHA256"},
{0x0069, "DH-RSA-AES256-SHA256"},
{0x0068, "DH-DSS-AES256-SHA256"},
{0x0039, "DHE-RSA-AES256-SHA"},
{0x0038, "DHE-DSS-AES256-SHA"},
{0x0037, "DH-RSA-AES256-SHA"},
{0x0036, "DH-DSS-AES256-SHA"},
{0x0088, "DHE-RSA-CAMELLIA256-SHA"},
{0x0087, "DHE-DSS-CAMELLIA256-SHA"},
{0x0086, "DH-RSA-CAMELLIA256-SHA"},
{0x0085, "DH-DSS-CAMELLIA256-SHA"},
{0xC019, "AECDH-AES256-SHA"},
{0x00A7, "ADH-AES256-GCM-SHA384"},
{0x006D, "ADH-AES256-SHA256"},
{0x003A, "ADH-AES256-SHA"},
{0x0089, "ADH-CAMELLIA256-SHA"},
{0xC032, "ECDH-RSA-AES256-GCM-SHA384"},
{0xC02E, "ECDH-ECDSA-AES256-GCM-SHA384"},
{0xC02A, "ECDH-RSA-AES256-SHA384"},
{0xC026, "ECDH-ECDSA-AES256-SHA384"},
{0xC00F, "ECDH-RSA-AES256-SHA"},
{0xC005, "ECDH-ECDSA-AES256-SHA"},
{0x009D, "AES256-GCM-SHA384"},
{0x003D, "AES256-SHA256"},
{0x0035, "AES256-SHA"},
{0x0084, "CAMELLIA256-SHA"},
{0x008D, "PSK-AES256-CBC-SHA"},
{0xC02F, "ECDHE-RSA-AES128-GCM-SHA256"},
{0xC02B, "ECDHE-ECDSA-AES128-GCM-SHA256"},
{0xC027, "ECDHE-RSA-AES128-SHA256"},
{0xC023, "ECDHE-ECDSA-AES128-SHA256"},
{0xC013, "ECDHE-RSA-AES128-SHA"},
{0xC009, "ECDHE-ECDSA-AES128-SHA"},
{0x00A4, "DH-DSS-AES128-GCM-SHA256"},
{0x00A2, "DHE-DSS-AES128-GCM-SHA256"},
{0x00A0, "DH-RSA-AES128-GCM-SHA256"},
{0x009E, "DHE-RSA-AES128-GCM-SHA256"},
{0x0067, "DHE-RSA-AES128-SHA256"},
{0x0040, "DHE-DSS-AES128-SHA256"},
{0x003F, "DH-RSA-AES128-SHA256"},
{0x003E, "DH-DSS-AES128-SHA256"},
{0x0033, "DHE-RSA-AES128-SHA"},
{0x0032, "DHE-DSS-AES128-SHA"},
{0x0031, "DH-RSA-AES128-SHA"},
{0x0030, "DH-DSS-AES128-SHA"},
{0x009A, "DHE-RSA-SEED-SHA"},
{0x0099, "DHE-DSS-SEED-SHA"},
{0x0098, "DH-RSA-SEED-SHA"},
{0x0097, "DH-DSS-SEED-SHA"},
{0x0045, "DHE-RSA-CAMELLIA128-SHA"},
{0x0044, "DHE-DSS-CAMELLIA128-SHA"},
{0x0043, "DH-RSA-CAMELLIA128-SHA"},
{0x0042, "DH-DSS-CAMELLIA128-SHA"},
{0xC018, "AECDH-AES128-SHA"},
{0x00A6, "ADH-AES128-GCM-SHA256"},
{0x006C, "ADH-AES128-SHA256"},
{0x0034, "ADH-AES128-SHA"},
{0x009B, "ADH-SEED-SHA"},
{0x0046, "ADH-CAMELLIA128-SHA"},
{0xC031, "ECDH-RSA-AES128-GCM-SHA256"},
{0xC02D, "ECDH-ECDSA-AES128-GCM-SHA256"},
{0xC029, "ECDH-RSA-AES128-SHA256"},
{0xC025, "ECDH-ECDSA-AES128-SHA256"},
{0xC00E, "ECDH-RSA-AES128-SHA"},
{0xC004, "ECDH-ECDSA-AES128-SHA"},
{0x009C, "AES128-GCM-SHA256"},
{0x003C, "AES128-SHA256"},
{0x002F, "AES128-SHA"},
{0x0096, "SEED-SHA"},
{0x0041, "CAMELLIA128-SHA"},
{0x008C, "PSK-AES128-CBC-SHA"},
{0xC012, "ECDHE-RSA-DES-CBC3-SHA"},
{0xC008, "ECDHE-ECDSA-DES-CBC3-SHA"},
{0x0016, "EDH-RSA-DES-CBC3-SHA"},
{0x0013, "EDH-DSS-DES-CBC3-SHA"},
{0x0010, "DH-RSA-DES-CBC3-SHA"},
{0x000D, "DH-DSS-DES-CBC3-SHA"},
{0xC017, "AECDH-DES-CBC3-SHA"},
{0x001B, "ADH-DES-CBC3-SHA"},
{0xC00D, "ECDH-RSA-DES-CBC3-SHA"},
{0xC003, "ECDH-ECDSA-DES-CBC3-SHA"},
{0x000A, "DES-CBC3-SHA"},
{0x0007, "IDEA-CBC-SHA"},
{0x008B, "PSK-3DES-EDE-CBC-SHA"},
{0x0021, "KRB5-IDEA-CBC-SHA"},
{0x001F, "KRB5-DES-CBC3-SHA"},
{0x0025, "KRB5-IDEA-CBC-MD5"},
{0x0023, "KRB5-DES-CBC3-MD5"},
{0xC011, "ECDHE-RSA-RC4-SHA"},
{0xC007, "ECDHE-ECDSA-RC4-SHA"},
{0xC016, "AECDH-RC4-SHA"},
{0x0018, "ADH-RC4-MD5"},
{0xC00C, "ECDH-RSA-RC4-SHA"},
{0xC002, "ECDH-ECDSA-RC4-SHA"},
{0x0005, "RC4-SHA"},
{0x0004, "RC4-MD5"},
{0x008A, "PSK-RC4-SHA"},
{0x0020, "KRB5-RC4-SHA"},
{0x0024, "KRB5-RC4-MD5"},
{0xC010, "ECDHE-RSA-NULL-SHA"},
{0xC006, "ECDHE-ECDSA-NULL-SHA"},
{0xC015, "AECDH-NULL-SHA"},
{0xC00B, "ECDH-RSA-NULL-SHA"},
{0xC001, "ECDH-ECDSA-NULL-SHA"},
{0x003B, "NULL-SHA256"},
{0x0002, "NULL-SHA"},
{0x0001, "NULL-MD5"}
};
struct cipher_suite cipher_suite_list_tls13[] =
{
{0x1301, "TLS_AES_128_GCM_SHA256"},
{0x1302, "TLS_AES_256_GCM_SHA384"},
{0x1303, "TLS_CHACHA20_POLY1305_SHA256"},
{0x1304, "TLS_AES_128_CCM_SHA256"},
{0x1305, "TLS_AES_128_CCM_8_SHA256"}
};
void ssl_chello_free(struct ssl_chello* chello) void ssl_chello_free(struct ssl_chello* chello)
{ {
if(chello==NULL) if(chello == NULL)
{ {
return; return;
} }
free(chello->sni); FREE(&(chello->sni));
chello->sni = NULL; chello->sni = NULL;
free(chello->alpn); FREE(&(chello->alpn));
chello->alpn = NULL; chello->alpn = NULL;
free(chello->cipher_suites); FREE(&(chello->sign_algos));
chello->sign_algos = NULL;
FREE(&(chello->supported_groups));
chello->supported_groups = NULL;
FREE(&(chello->cipher_suites));
chello->cipher_suites = NULL; chello->cipher_suites = NULL;
free(chello->cipher_suites_tls13); FREE(&chello);
chello->cipher_suites_tls13 = NULL;
free(chello);
} }
static char* parse_alpn_extension(const unsigned char* buff, size_t buff_len, enum chello_parse_result* result) static int parse_server_name_extension(const unsigned char *buff, uint16_t buff_len, struct ssl_chello* chello)
{
size_t pos = 0;
size_t len = ((size_t)buff[pos] << 8) + (size_t)buff[pos + 1];
if(2 + len != buff_len)
{
*result = CHELLO_PARSE_INVALID_FORMAT;
return NULL;
}
char* alpn = ALLOC(char, len + 1);
strncpy((char*)alpn, (const char*)buff + 2, len);
alpn[len] = '\0';
*result = CHELLO_PARSE_SUCCESS;
return alpn;
}
static char* parse_server_name_extension(const unsigned char* buff, size_t buff_len, enum chello_parse_result* result)
{ {
size_t pos = 2; /* skip server name list length */ size_t pos = 2; /* skip server name list length */
size_t len; uint16_t len;
char* sni = NULL; char *sni = NULL;
while (pos + 3 < buff_len) while (pos + 3 < buff_len)
{ {
len = ((size_t)buff[pos + 1] << 8) + (size_t)buff[pos + 2]; len = (buff[pos + 1] << 8) | buff[pos + 2];
if (pos + 3 + len > buff_len) if (pos + 3 + len > buff_len)
{ {
*result = CHELLO_PARSE_INVALID_FORMAT; chello->sni = sni;
return NULL; return CHELLO_PARSE_INVALID_FORMAT;
} }
switch (buff[pos]) switch (buff[pos])
{ {
case 0x00: /* host_name */ case 0x00: /* host_name */
sni = (char*)malloc(len + 1); sni = ALLOC(char, len + 1);
strncpy(sni, (const char*)buff + pos + 3, len); strncpy(sni, (const char*)buff + pos + 3, len);
sni[len] = '\0'; sni[len] = '\0';
*result = CHELLO_PARSE_SUCCESS; chello->sni = sni;
return CHELLO_PARSE_SUCCESS;
} }
pos += 3 + len; pos += 3 + len;
} }
chello->sni = sni;
if (pos != buff_len) if (pos != buff_len)
{ {
*result = CHELLO_PARSE_INVALID_FORMAT; return CHELLO_PARSE_INVALID_FORMAT;
} }
return sni; return CHELLO_PARSE_SUCCESS;
} }
static enum chello_parse_result parse_extensions(const unsigned char* buff, size_t buff_len, struct ssl_chello* chello) { static int parse_alpn_extension(const unsigned char* buff, uint16_t buff_len, struct ssl_chello* chello)
size_t pos = 0; {
int pos = 0;
uint16_t len = (buff[pos] << 8) | buff[pos + 1];
char *alpn = NULL;
if(2 + len != buff_len)
{
chello->alpn = alpn;
return CHELLO_PARSE_INVALID_FORMAT;
}
alpn = ALLOC(char, len + 1);
strncpy((char*)alpn, (const char*)buff + 2, len);
alpn[len] = '\0';
chello->alpn = alpn;
return CHELLO_PARSE_SUCCESS;
}
static int parse_supported_versions_extension(const unsigned char* buff, uint16_t buff_len, struct ssl_chello* chello)
{
if(buff_len < 1)
{
return CHELLO_PARSE_INVALID_FORMAT;
}
uint8_t len = buff[0];
if(len + 1 > buff_len || len % 2 != 0)
{
return CHELLO_PARSE_INVALID_FORMAT;
}
uint16_t max_version = 0x0000, min_version = 0xffff;
for(int i = 1; i < len; i+=2)
{
uint16_t version = buff[i] << 8 | buff[i + 1];
//unknown version
if(version < 0x0300 || version > 0x0304)
{
continue;
}
if(version > max_version)
{
max_version = version;
}
if(version < min_version)
{
min_version = version;
}
}
if(max_version != 0x0000)
{
chello->max_version.ossl_format = max_version;
chello->max_version.major = (max_version >> 8);
chello->max_version.minor = max_version & 0x00ff;
chello->min_version.ossl_format = min_version;
chello->min_version.major = (min_version >> 8);
chello->min_version.minor = min_version & 0x00ff;
}
return CHELLO_PARSE_SUCCESS;
}
static int parse_sign_algos_extension(const unsigned char* buff, uint16_t buff_len, struct ssl_chello* chello)
{
if(buff_len < 2)
{
return CHELLO_PARSE_INVALID_FORMAT;
}
uint16_t len = (buff[0] << 8) | buff[1];
if(len + 2 > buff_len)
{
return CHELLO_PARSE_INVALID_FORMAT;
}
char *sign_algos = ALLOC(char, len);
memcpy(sign_algos, (void*)(buff + 2), len);
chello->sign_algos = sign_algos;
chello->sign_algos_len = len;
return CHELLO_PARSE_SUCCESS;
}
static int parse_supported_groups_extension(const unsigned char* buff, uint16_t buff_len, struct ssl_chello* chello)
{
if(buff_len < 2)
{
return CHELLO_PARSE_INVALID_FORMAT;
}
uint16_t len = (buff[0] << 8) | buff[1];
if(len + 2 > buff_len)
{
return CHELLO_PARSE_INVALID_FORMAT;
}
char *supported_groups = ALLOC(char, len);
memcpy(supported_groups, (void*)(buff + 2), len);
chello->supported_groups = supported_groups;
chello->supported_groups_len = len;
return CHELLO_PARSE_SUCCESS;
}
static int parse_extensions(const unsigned char *buff, uint16_t buff_len, struct ssl_chello *chello) {
uint16_t pos = 0;
/* Parse each 4 bytes for the extension header */ /* Parse each 4 bytes for the extension header */
while (pos + 4 <= buff_len) while (pos + 4 <= buff_len)
{ {
size_t len = ((size_t)buff[pos + 2] << 8) + (size_t)buff[pos + 3]; uint16_t len = (buff[pos + 2] << 8) | buff[pos + 3];
/* Check if it's a server name extension */ if (pos + 4 + len > buff_len)
if (buff[pos] == 0x00 && buff[pos + 1] == 0x00)
{ {
if (pos + 4 + len > buff_len) return CHELLO_PARSE_INVALID_FORMAT;
{ }
return CHELLO_PARSE_INVALID_FORMAT; uint16_t extension_type = (buff[pos] << 8) | buff[pos + 1];
} int result = CHELLO_PARSE_SUCCESS;
enum chello_parse_result result = CHELLO_PARSE_SUCCESS; switch(extension_type){
chello->sni = parse_server_name_extension(buff + pos + 4, len, &result); //server name extension
if(result != CHELLO_PARSE_SUCCESS) case 0x0000:
{ result = parse_server_name_extension(buff + pos + 4, len, chello);
return result; break;
} //alpn extension
} case 0x0010:
/* Check if it's a alpn extension */ result = parse_alpn_extension(buff + pos + 4, len, chello);
if (buff[pos] == 0x00 && buff[pos + 1] == 0x10) break;
//supported versions extension
case 0x002b:
result = parse_supported_versions_extension(buff + pos + 4, len, chello);
break;
//signature algorithms extension
case 0x000d:
result = parse_sign_algos_extension(buff + pos + 4, len, chello);
break;
//supported groups extensions
case 0x000a:
result = parse_supported_groups_extension(buff + pos + 4, len, chello);
break;
default:
break;
}
if(result != CHELLO_PARSE_SUCCESS)
{ {
if (pos + 4 + len > buff_len) return result;
{
return CHELLO_PARSE_INVALID_FORMAT;
}
enum chello_parse_result result = CHELLO_PARSE_SUCCESS;
chello->alpn = parse_alpn_extension(buff + pos + 4, len, &result);
if(result != CHELLO_PARSE_SUCCESS)
{
return result;
}
} }
pos += (4 + len); pos += (4 + len);
} }
@@ -1969,50 +1918,6 @@ static enum chello_parse_result parse_extensions(const unsigned char* buff, size
return CHELLO_PARSE_SUCCESS; return CHELLO_PARSE_SUCCESS;
} }
static char* parse_cipher_suites(struct cipher_suite* _cipher_suite_list, int n, const unsigned char* buff, size_t buff_len, enum chello_parse_result* result)
{
char* cipher_suites_str = (char* )malloc(TFE_STRING_MAX);
cipher_suites_str[0] = '\0';
size_t pos = 0;
int flag = 0;
while(pos < buff_len)
{
int i = 0;
for(i = 0;i < n; i++)
{
int val = (buff[pos] << 8) + buff[pos + 1];
if(_cipher_suite_list[i].value == val)
{
if(strnlen(_cipher_suite_list[i].name, TFE_STRING_MAX) + strnlen(cipher_suites_str, TFE_STRING_MAX) + 1 > TFE_STRING_MAX)
{
flag = 1;
break;
}
strncat(cipher_suites_str, _cipher_suite_list[i].name, TFE_STRING_MAX);
strncat(cipher_suites_str, ":", TFE_STRING_MAX);
}
}
pos += 2;
if(flag == 1)
{
break;
}
}
int len = strnlen(cipher_suites_str, TFE_STRING_MAX);
if(len > 0)
{
cipher_suites_str[len-1] = '\0';
}
if(pos != buff_len && flag == 0)
{
*result = CHELLO_PARSE_INVALID_FORMAT;
free(cipher_suites_str);
return NULL;
}
*result = CHELLO_PARSE_SUCCESS;
return cipher_suites_str;
}
struct ssl_chello* ssl_chello_parse(const unsigned char* buff, size_t buff_len, int parse_cipher, enum chello_parse_result* result) struct ssl_chello* ssl_chello_parse(const unsigned char* buff, size_t buff_len, int parse_cipher, enum chello_parse_result* result)
{ {
int n=0; int n=0;
@@ -2089,6 +1994,19 @@ struct ssl_chello* ssl_chello_parse(const unsigned char* buff, size_t buff_len,
*result = CHELLO_PARSE_INVALID_FORMAT; *result = CHELLO_PARSE_INVALID_FORMAT;
return NULL; return NULL;
} }
struct ssl_version min_version;
struct ssl_version max_version;
char *sni;
char *alpn;
char *sign_algos;
uint16_t sign_algos_len;
char *supported_groups;
uint16_t supported_groups_len;
char *cipher_suites;
uint16_t cipher_suites_len;
struct ssl_chello* _chello = (struct ssl_chello*)ALLOC(struct ssl_chello, 1); struct ssl_chello* _chello = (struct ssl_chello*)ALLOC(struct ssl_chello, 1);
_chello->min_version.major = buff[1]; _chello->min_version.major = buff[1];
_chello->min_version.minor = buff[2]; _chello->min_version.minor = buff[2];
@@ -2098,7 +2016,12 @@ struct ssl_chello* ssl_chello_parse(const unsigned char* buff, size_t buff_len,
_chello->sni = NULL; _chello->sni = NULL;
_chello->alpn = NULL; _chello->alpn = NULL;
_chello->cipher_suites = NULL; _chello->cipher_suites = NULL;
_chello->cipher_suites_tls13 = NULL; _chello->cipher_suites_len = 0;
_chello->sign_algos = NULL;
_chello->sign_algos_len = 0;
_chello->supported_groups = NULL;
_chello->supported_groups_len = 0;
/* TLS record length */ /* TLS record length */
size_t len = ((size_t)buff[3] << 8) + (size_t)buff[4] + 5; size_t len = ((size_t)buff[3] << 8) + (size_t)buff[4] + 5;
if (buff_len < len) if (buff_len < len)
@@ -2145,28 +2068,20 @@ struct ssl_chello* ssl_chello_parse(const unsigned char* buff, size_t buff_len,
} }
len = ((size_t)buff[pos] << 8) + (size_t)buff[pos + 1]; len = ((size_t)buff[pos] << 8) + (size_t)buff[pos + 1];
pos += 2; pos += 2;
if(pos + len > buff_len) if(pos + len > buff_len || len % 2 != 0)
{ {
*result = CHELLO_PARSE_INVALID_FORMAT; *result = CHELLO_PARSE_INVALID_FORMAT;
return _chello; return _chello;
} }
if(parse_cipher) if(parse_cipher)
{ {
n = sizeof(cipher_suite_list) / sizeof(struct cipher_suite); char* cipher_suites = ALLOC(char, len);
_chello->cipher_suites = parse_cipher_suites(cipher_suite_list, n, buff + pos, len, result); memcpy(cipher_suites, (void*)(buff + pos), len);
if(*result != CHELLO_PARSE_SUCCESS) _chello->cipher_suites = cipher_suites;
{ _chello->cipher_suites_len = len;
return _chello;
}
n = sizeof(cipher_suite_list_tls13) / sizeof(struct cipher_suite);
_chello->cipher_suites_tls13 = parse_cipher_suites(cipher_suite_list_tls13, n, buff + pos, len, result);
if(*result != CHELLO_PARSE_SUCCESS)
{
return _chello;
}
} }
pos += len; pos += len;
/* Compression Methods */ /* Compression Methods */
if (pos >= buff_len) if (pos >= buff_len)
{ {
@@ -2202,8 +2117,8 @@ struct ssl_chello* ssl_chello_parse(const unsigned char* buff, size_t buff_len,
*result = CHELLO_PARSE_INVALID_FORMAT; *result = CHELLO_PARSE_INVALID_FORMAT;
return _chello; return _chello;
} }
enum chello_parse_result rtn = parse_extensions(buff + pos, len, _chello); int ret = parse_extensions(buff + pos, len, _chello);
*result = rtn; *result = (enum chello_parse_result)ret;
return _chello; return _chello;
} }
} }

229
platform/test/test_chello_parse.cpp
View File

@@ -22,9 +22,8 @@ char* parse_alpn(const char* alpn)
result[size2] = '\0'; result[size2] = '\0';
return result; return result;
} }
int main()
{
int ssl2_test(){
//ssl2.0 //ssl2.0
unsigned char buff[] = unsigned char buff[] =
{ {
@@ -51,7 +50,9 @@ int main()
printf("\n\n"); printf("\n\n");
ssl_chello_free(chello); ssl_chello_free(chello);
chello = NULL; chello = NULL;
}
int ssl3_test(){
//ssl3.0, no extensions //ssl3.0, no extensions
unsigned char buff1[] = unsigned char buff1[] =
{ {
@@ -73,85 +74,169 @@ int main()
printf("min version is %d, %d\n", chello1->min_version.major, chello1->min_version.minor); printf("min version is %d, %d\n", chello1->min_version.major, chello1->min_version.minor);
printf("max version: %d, %d\n", chello1->max_version.major, chello1->max_version.minor); printf("max version: %d, %d\n", chello1->max_version.major, chello1->max_version.minor);
printf("cipher suites is %s\n", chello1->cipher_suites); printf("cipher suites is %s\n", chello1->cipher_suites);
if(chello1->cipher_suites_tls13)
{
printf("cipher suites for tls1.3 is %s\n", chello1->cipher_suites_tls13);
}
printf("\n\n"); printf("\n\n");
ssl_chello_free(chello1); ssl_chello_free(chello1);
chello1 = NULL; chello1 = NULL;
}
int tls12_test(){
//tls1.2 //tls1.2
unsigned char buff2[] = unsigned char buff[] =
{ {
0x16, 0x03, 0x01, 0x02, 0x00, 0x01, 0x00, 0x01, 0xfc, 0x03, 0x16, 0x03, 0x01, 0x00, 0xd7, 0x01, 0x00, 0x00, 0xd3, 0x03, 0x03, 0x5c, 0xe7, 0x91, 0x0d, 0x99,
0x03, 0x30, 0x6d, 0x1d, 0xd5, 0x0d, 0xa6, 0x1e, 0x0b, 0xe6, 0x76, 0x7d, 0x0c, 0xce, 0x84, 0xe0, 0x14, 0x91, 0x07, 0xe4, 0x71, 0x29, 0x97, 0x0a, 0x27, 0xae,
0xf7, 0xf0, 0xd3, 0xfa, 0x14, 0xdc, 0x80, 0x24, 0xe5, 0x34, 0xff, 0xe7, 0xde, 0x90, 0xd7, 0x01, 0x93, 0x8b, 0x53, 0x7f, 0x0a, 0x20, 0x45, 0x90, 0x72, 0xd8,
0x2d, 0x9c, 0x68, 0x6b, 0x0a, 0x40, 0x59, 0xc6, 0x2c, 0xbb, 0xfa, 0xcf, 0x55, 0x2d, 0x87, 0x84, 0x57, 0xb6, 0xfb, 0xff, 0x3a, 0x1c, 0x00, 0x8a, 0x81, 0x27,
0xf1, 0x04, 0xee, 0x20, 0xc4, 0x33, 0x03, 0x91, 0xa9, 0x0d, 0xe1, 0x75, 0x1f, 0x97, 0xfd, 0xb1, 0x51, 0x0b, 0x73, 0xa4, 0xe3, 0xff, 0x00, 0x3a, 0x00, 0xff,
0xfa, 0xae, 0x93, 0x9b, 0xbe, 0x22, 0x7c, 0x99, 0x5f, 0xaf, 0xc0, 0x2c, 0xc0, 0x2b, 0xc0, 0x24, 0xc0, 0x23, 0xc0, 0x0a, 0xc0, 0x09, 0xc0, 0x08, 0xc0, 0x30,
0xdc, 0xe1, 0x14, 0xab, 0xbc, 0x57, 0x1f, 0x7f, 0xe0, 0x5c, 0xc0, 0x2f, 0xc0, 0x28, 0xc0, 0x27, 0xc0, 0x14, 0xc0, 0x13, 0xc0, 0x12, 0x00, 0x9f, 0x00, 0x9e,
0x59, 0xe3, 0x8b, 0xaa, 0x70, 0xf8, 0x00, 0x22, 0x5a, 0x5a, 0x00, 0x6b, 0x00, 0x67, 0x00, 0x39, 0x00, 0x33, 0x00, 0x16, 0x00, 0x9d, 0x00, 0x9c, 0x00, 0x3d,
0x13, 0x01, 0x13, 0x02, 0x13, 0x03, 0xc0, 0x2b, 0xc0, 0x2f, 0x00, 0x3c, 0x00, 0x35, 0x00, 0x2f, 0x00, 0x0a, 0x01, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x13,
0xc0, 0x2c, 0xc0, 0x30, 0xcc, 0xa9, 0xcc, 0xa8, 0xc0, 0x13, 0x00, 0x11, 0x00, 0x00, 0x0e, 0x6d, 0x61, 0x69, 0x6c, 0x2e, 0x63, 0x73, 0x74, 0x6e, 0x65, 0x74,
0xc0, 0x14, 0x00, 0x9c, 0x00, 0x9d, 0x00, 0x2f, 0x00, 0x35, 0x2e, 0x63, 0x6e, 0x00, 0x0a, 0x00, 0x08, 0x00, 0x06, 0x00, 0x17, 0x00, 0x18, 0x00, 0x19, 0x00,
0x00, 0x0a, 0x01, 0x00, 0x01, 0x91, 0xea, 0xea, 0x00, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00, 0x00, 0x0d, 0x00, 0x12, 0x00, 0x10, 0x04, 0x01, 0x02, 0x01, 0x05,
0xff, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x01, 0x06, 0x01, 0x04, 0x03, 0x02, 0x03, 0x05, 0x03, 0x06, 0x03, 0x00, 0x05, 0x00, 0x05, 0x01,
0x10, 0x00, 0x00, 0x0d, 0x77, 0x77, 0x77, 0x2e, 0x62, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00, 0x17, 0x00, 0x00,
0x69, 0x64, 0x75, 0x2e, 0x63, 0x6f, 0x6d, 0x00, 0x17, 0x00,
0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x14, 0x00,
0x12, 0x04, 0x03, 0x08, 0x04, 0x04, 0x01, 0x05, 0x03, 0x08,
0x05, 0x05, 0x01, 0x08, 0x06, 0x06, 0x01, 0x02, 0x01, 0x00,
0x05, 0x00, 0x05, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12,
0x00, 0x00, 0x00, 0x10, 0x00, 0x0e, 0x00, 0x0c, 0x02, 0x68,
0x32, 0x08, 0x68, 0x74, 0x74, 0x70, 0x2f, 0x31, 0x2e, 0x31,
0x75, 0x50, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00,
0x00, 0x33, 0x00, 0x2b, 0x00, 0x29, 0xea, 0xea, 0x00, 0x01,
0x00, 0x00, 0x1d, 0x00, 0x20, 0x1b, 0xae, 0xc9, 0x4f, 0x17,
0x30, 0xf2, 0xec, 0x4c, 0xc1, 0xdb, 0xf7, 0xe4, 0x72, 0xad,
0x22, 0xa8, 0xe9, 0x2c, 0x67, 0x4d, 0x8a, 0x87, 0x22, 0xd1,
0x65, 0x2f, 0x08, 0xef, 0x01, 0xd9, 0x73, 0x00, 0x2d, 0x00,
0x02, 0x01, 0x01, 0x00, 0x2b, 0x00, 0x0b, 0x0a, 0x1a, 0x1a,
0x7f, 0x17, 0x03, 0x03, 0x03, 0x02, 0x03, 0x01, 0x00, 0x0a,
0x00, 0x0a, 0x00, 0x08, 0xea, 0xea, 0x00, 0x1d, 0x00, 0x17,
0x00, 0x18, 0x00, 0x1b, 0x00, 0x03, 0x02, 0x00, 0x02, 0xaa,
0xaa, 0x00, 0x01, 0x00, 0x00, 0x15, 0x00, 0xc7, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
}; };
size_t buff2_len = sizeof(buff2) / sizeof(char); int len = sizeof(buff);
enum chello_parse_result result2; enum chello_parse_result result;
struct ssl_chello* chello2 = ssl_chello_parse(buff2, buff2_len, 1, &result2); struct ssl_chello* chello = ssl_chello_parse(buff, len, 1, &result);
printf("---------------------------tls1.2 --------------------------------\n"); printf("---------------------------tls1.2 --------------------------------\n");
printf("result is %d\n", result2); printf("result is %d\n", result);
printf("min version: %d, %d, ossl format: %x\n", chello2->min_version.major, chello2->min_version.minor, chello2->min_version.ossl_format); printf("min version: %d, %d, ossl format: %x\n", chello->min_version.major, chello->min_version.minor, chello->min_version.ossl_format);
printf("max version: %d, %d, ossl format: %x\n", chello2->max_version.major, chello2->max_version.minor, chello2->max_version.ossl_format); printf("max version: %d, %d, ossl format: %x\n", chello->max_version.major, chello->max_version.minor, chello->max_version.ossl_format);
printf("cipher suites: %s\n", chello2->cipher_suites);
printf("cipher suites for tls1.3: %s\n", chello2->cipher_suites_tls13); unsigned char cipher_suites[1024];
printf("sni: %s\n", chello2->sni); memcpy(cipher_suites, chello->cipher_suites, chello->cipher_suites_len);
char* alpn = parse_alpn((char*)chello2->alpn); printf("cipher suites: \n", chello->cipher_suites);
for(int i = 0; i < chello->cipher_suites_len; i++){
printf("0x%02x ", cipher_suites[i]);
}
printf("\n");
printf("sni: %s\n", chello->sni);
if(chello->alpn == NULL){
printf("no alpn\n");
}
else{
char* alpn = parse_alpn((char*)chello->alpn);
printf("alpn: %s\n", alpn);
free(alpn);
alpn = NULL;
}
unsigned char sign_algos[1024];
if(chello->sign_algos == NULL){
printf("no signature algorithms\n");
}
else{
memcpy(sign_algos, chello->sign_algos, chello->sign_algos_len);
printf("signature algorithms is: \n");
for(int i = 0; i < chello->sign_algos_len; i++){
printf("0x%02x ", sign_algos[i]);
}
}
printf("\n");
unsigned char supported_groups[1024];
if(chello->supported_groups == NULL){
printf("no supported groups\n");
}
else{
memcpy(supported_groups, chello->supported_groups, chello->supported_groups_len);
printf("supported groups is \n", supported_groups);
for(int i = 0; i < chello->supported_groups_len; i++){
printf("0x%02x ", supported_groups[i]);
}
}
printf("\n\n");
ssl_chello_free(chello);
chello = NULL;
}
int tls13_test(){
unsigned char buff[] =
{
0x16, 0x03, 0x01, 0x02, 0x00, 0x01, 0x00, 0x01, 0xfc, 0x03, 0x03, 0x90, 0x44, 0x3f,
0xb1, 0x87, 0x73, 0x78, 0x0d, 0xa6, 0x41, 0x77, 0x4d, 0xee, 0xf4, 0xe0, 0x98, 0x2a, 0xbf, 0x8e,
0x61, 0x51, 0xe7, 0xde, 0xee, 0xc1, 0x4a, 0x24, 0x86, 0x93, 0x0c, 0xfd, 0x03, 0x20, 0xb8, 0xcb,
0x65, 0xb4, 0x5a, 0xd7, 0x70, 0x60, 0x60, 0x59, 0x97, 0xf8, 0x0b, 0x5f, 0xe4, 0x98, 0x0c, 0x05,
0xe2, 0xc1, 0x1c, 0xd5, 0x63, 0x05, 0x81, 0xcd, 0x6f, 0xfd, 0x1c, 0x35, 0x16, 0xde, 0x00, 0x22,
0x6a, 0x6a, 0x13, 0x01, 0x13, 0x02, 0x13, 0x03, 0xc0, 0x2b, 0xc0, 0x2f, 0xc0, 0x2c, 0xc0, 0x30,
0xcc, 0xa9, 0xcc, 0xa8, 0xc0, 0x13, 0xc0, 0x14, 0x00, 0x9c, 0x00, 0x9d, 0x00, 0x2f, 0x00, 0x35,
0x00, 0x0a, 0x01, 0x00, 0x01, 0x91, 0xaa, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x00, 0x1f,
0x00, 0x00, 0x1c, 0x73, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, 0x68, 0x6b, 0x67, 0x33,
0x2d, 0x32, 0x2e, 0x78, 0x78, 0x2e, 0x66, 0x62, 0x63, 0x64, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x00,
0x17, 0x00, 0x00, 0xff, 0x01, 0x00, 0x01, 0x00, 0x00, 0x0a, 0x00, 0x0a, 0x00, 0x08, 0xda, 0xda,
0x00, 0x1d, 0x00, 0x17, 0x00, 0x18, 0x00, 0x0b, 0x00, 0x02, 0x01, 0x00, 0x00, 0x23, 0x00, 0x00,
0x00, 0x10, 0x00, 0x0e, 0x00, 0x0c, 0x02, 0x68, 0x32, 0x08, 0x68, 0x74, 0x74, 0x70, 0x2f, 0x31,
0x2e, 0x31, 0x00, 0x05, 0x00, 0x05, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x14, 0x00,
0x12, 0x04, 0x03, 0x08, 0x04, 0x04, 0x01, 0x05, 0x03, 0x08, 0x05, 0x05, 0x01, 0x08, 0x06, 0x06,
0x01, 0x02, 0x01, 0x00, 0x12, 0x00, 0x00, 0x00, 0x33, 0x00, 0x2b, 0x00, 0x29, 0xda, 0xda, 0x00,
0x01, 0x00, 0x00, 0x1d, 0x00, 0x20, 0x9a, 0x7a, 0x5b, 0xbc, 0x80, 0x71, 0x71, 0xaa, 0x36, 0xf0,
0x74, 0x91, 0x5d, 0xaf, 0x8e, 0xda, 0xa3, 0x70, 0xbf, 0x14, 0xe4, 0xd4, 0x06, 0x2a, 0x54, 0x23,
0x5c, 0x91, 0xfb, 0x78, 0x04, 0x62, 0x00, 0x2d, 0x00, 0x02, 0x01, 0x01, 0x00, 0x2b, 0x00, 0x0b,
0x0a, 0x1a, 0x1a, 0x03, 0x04, 0x03, 0x03, 0x03, 0x02, 0x03, 0x01, 0x00, 0x1b, 0x00, 0x03, 0x02,
0x00, 0x02, 0x1a, 0x1a, 0x00, 0x01, 0x00, 0x00, 0x15, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x00, 0x99, 0x00, 0x74,
0x00, 0x6e, 0xe7, 0xa7, 0x7b, 0x46, 0xa1, 0x9a, 0x34, 0xb9, 0x5a, 0xf6, 0x90, 0x80, 0x1d, 0xa5,
0xb6, 0x8a, 0x5f, 0x01, 0x1a, 0x23, 0x17, 0x80, 0xe3, 0x2a, 0x93, 0x29, 0x2f, 0x74, 0x71, 0x9c,
0x74, 0x99, 0x00, 0x00, 0x00, 0x00, 0x84, 0x89, 0xb4, 0x19, 0x04, 0xf8, 0xee, 0xb1, 0x0d, 0xc5,
0xf6, 0x91, 0x4d, 0x8e, 0x2e, 0x90, 0x87, 0xb3, 0x7b, 0xce, 0xc1, 0x9b, 0xa0, 0xe3, 0x7b, 0xf7,
0x02, 0x19, 0xf0, 0xf0, 0xcd, 0xd5, 0x37, 0x96, 0xce, 0x22, 0x10, 0xbf, 0xae, 0x2b, 0x6e, 0x94,
0xa9, 0x68, 0x38, 0xd1, 0x8b, 0x17, 0x83, 0x8c, 0x14, 0xec, 0xb5, 0xcd, 0x0d, 0x4b, 0x6b, 0x8f,
0xb8, 0xc0, 0xd3, 0xf8, 0x71, 0xe8, 0xd1, 0xbc, 0xfa, 0xdf, 0x88, 0x12, 0xe8, 0x95, 0xdf, 0x93,
0x31, 0x7f, 0x35, 0x17, 0x00, 0x21, 0x20, 0xa1, 0xcd, 0x5f, 0xd3, 0xe4, 0xd5, 0xd1, 0xfa, 0x65,
0x8e, 0xed, 0x02, 0xa2, 0xc8, 0xd2, 0x12, 0xf4, 0xfd, 0x96, 0x42, 0x2c, 0xe0, 0x02, 0x52, 0x7e,
0xce, 0x90, 0x80, 0xf0, 0xc6, 0xc6, 0x42
};
int len = sizeof(buff);
enum chello_parse_result result;
struct ssl_chello* chello = ssl_chello_parse(buff, len, 1, &result);
printf("---------------------------tls1.3 --------------------------------\n");
printf("min version: %d, %d, ossl format: %x\n", chello->min_version.major, chello->min_version.minor, chello->min_version.ossl_format);
printf("max version: %d, %d, ossl format: %x\n", chello->max_version.major, chello->max_version.minor, chello->max_version.ossl_format);
unsigned char cipher_suites[1024];
memcpy(cipher_suites, chello->cipher_suites, chello->cipher_suites_len);
printf("cipher suites: \n", chello->cipher_suites);
for(int i = 0; i < chello->cipher_suites_len; i++){
printf("0x%02x ", cipher_suites[i]);
}
printf("\n");
printf("sni: %s\n", chello->sni);
char* alpn = parse_alpn((char*)chello->alpn);
printf("alpn: %s\n", alpn); printf("alpn: %s\n", alpn);
free(alpn); free(alpn);
alpn = NULL; alpn = NULL;
printf("\n\n");
ssl_chello_free(chello2); unsigned char sign_algos[1024];
chello2 = NULL; memcpy(sign_algos, chello->sign_algos, chello->sign_algos_len);
printf("signature algorithms is: \n");
for(int i = 0; i < chello->sign_algos_len; i++){
printf("0x%02x ", sign_algos[i]);
}
printf("\n");
unsigned char supported_groups[1024];
memcpy(supported_groups, chello->supported_groups, chello->supported_groups_len);
supported_groups[chello->supported_groups_len] = '\0';
printf("supported groups is \n", supported_groups);
for(int i = 0; i < chello->supported_groups_len; i++){
printf("0x%02x ", supported_groups[i]);
}
printf("\n");
ssl_chello_free(chello);
chello = NULL;
}
int main()
{
tls12_test();
tls13_test();
} }