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#include <gtest/gtest.h>
#include <unistd.h>
#include <stdio.h>
#include "stellar/dtls.h"
#include <pcap/pcap.h>
#ifdef __cplusplus
extern "C"
{
#endif
#include "dtls_parse.h"
extern int32_t dtls_parser_header(const char *payload, uint32_t payload_len, struct dtls_header *header, void *logger);
extern int32_t dtls_parser_handshake_header(const char *dtls_payload, uint32_t dtls_payload_len,
struct dtls_parse_ctx **parse_ctx, struct dtls_handshake *handshake_hs, void *logger);
extern int dtls_try_assemble_fragments(struct dtls_parse_ctx **parse_ctx, struct dtls_handshake *handshake_hs);
extern int32_t dtls_parser_hello(struct session *sess, struct dtls_handshake *handshake, struct dtls_message *dtls_msg, void *logger);
#ifdef __cplusplus
}
#endif
TEST(dtls_decoder, dtls_try_assemble_fragments)
{
const uint8_t packet_fragment1_bytes[]={
0x16, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x72, //DTLS HEAD
0x01, 0x00, 0x00, 0xcc, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x66, //HANDSHAKE HEAD msg_length=204 fragment_offset=0, fragment_length=102
0xfe, 0xfd, 0x68, 0xbb, 0xd5, 0x17, 0x52,
0x32, 0x94, 0x28, 0x59, 0x31, 0x9a, 0xa1, 0x7d,
0x80, 0xf1, 0x46, 0x4c, 0x52, 0x89, 0xb7, 0xb3,
0x19, 0xda, 0xce, 0xb4, 0x75, 0xae, 0x52, 0xde,
0x9e, 0xdc, 0x66, 0x00, 0x00, 0x00, 0x38, 0xc0,
0x2c, 0xc0, 0x30, 0x00, 0x9f, 0xcc, 0xa9, 0xcc,
0xa8, 0xcc, 0xaa, 0xc0, 0x2b, 0xc0, 0x2f, 0x00,
0x9e, 0xc0, 0x24, 0xc0, 0x28, 0x00, 0x6b, 0xc0,
0x23, 0xc0, 0x27, 0x00, 0x67, 0xc0, 0x0a, 0xc0,
0x14, 0x00, 0x39, 0xc0, 0x09, 0xc0, 0x13, 0x00,
0x33, 0x00, 0x9d, 0x00, 0x9c, 0x00, 0x3d, 0x00,
0x3c, 0x00, 0x35, 0x00, 0x2f, 0x00, 0xff, 0x01,
0x00, 0x00, 0x6a, 0x00, 0x00, 0x00, 0x0e,
};
uint32_t fragment1_len=127;
const uint8_t packet_fragment2_bytes[]={
0x16, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x4c, //DTLS HEAD
0x01, 0x00, 0x00, 0xcc, 0x00, 0x00, 0x00, 0x00,
0x66, 0x00, 0x00, 0x33, //HANDSHAKE HEAD msg_length=204 fragment_offset=102, fragment_length=51
0x00, 0x0c, 0x00, 0x00, 0x09, 0x6c, 0x6f, 0x63,
0x61, 0x6c, 0x68, 0x6f, 0x73, 0x74, 0x00, 0x0b,
0x00, 0x04, 0x03, 0x00, 0x01, 0x02, 0x00, 0x0a,
0x00, 0x0c, 0x00, 0x0a, 0x00, 0x1d, 0x00, 0x17,
0x00, 0x1e, 0x00, 0x19, 0x00, 0x18, 0x00, 0x23,
0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x17,
0x00, 0x00, 0x00,
};
uint32_t fragment2_len=76;
const uint8_t packet_fragment3_bytes[]={
0x16, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x4c, //DTLS HEAD
0x01, 0x00, 0x00, 0xcc, 0x00, 0x00, 0x00, 0x00,
0x99, 0x00, 0x00, 0x33, //HANDSHAKE HEAD msg_length=204 fragment_offset=153, fragment_length=51
0x0d, 0x00, 0x30, 0x00, 0x2e, 0x04, 0x03, 0x05,
0x03, 0x06, 0x03, 0x08, 0x07, 0x08, 0x08, 0x08,
0x1a, 0x08, 0x1b, 0x08, 0x1c, 0x08, 0x09, 0x08,
0x0a, 0x08, 0x0b, 0x08, 0x04, 0x08, 0x05, 0x08,
0x06, 0x04, 0x01, 0x05, 0x01, 0x06, 0x01, 0x03,
0x03, 0x03, 0x01, 0x03, 0x02, 0x04, 0x02, 0x05,
0x02, 0x06, 0x02
};
uint32_t fragment3_len=76;
struct dtls_parse_ctx *parse_ctx=NULL;
struct dtls_header header;
struct dtls_handshake handshake_hs;
//packet Out of order arrival
dtls_parser_header((const char *)packet_fragment3_bytes, fragment3_len, &header, NULL);
int ret=dtls_parser_handshake_header(header.dtls_payload, header.length, &parse_ctx, &handshake_hs, NULL);
EXPECT_EQ(ret , -1);
EXPECT_TRUE(parse_ctx!=NULL);
EXPECT_EQ(parse_ctx->fragments_head->msg_type , dtls_type_client_hello);
EXPECT_EQ(parse_ctx->fragments_head->message_seq , 0);
EXPECT_EQ(parse_ctx->fragments_head->fragment_content_length , 204);
EXPECT_EQ(parse_ctx->fragments_head->fragment_filled_size , 51);
dtls_parser_header((const char *)packet_fragment1_bytes, fragment1_len, &header, NULL);
ret=dtls_parser_handshake_header(header.dtls_payload, header.length, &parse_ctx, &handshake_hs, NULL);
EXPECT_EQ(ret , -1);
EXPECT_TRUE(parse_ctx!=NULL);
EXPECT_EQ(parse_ctx->fragments_head->msg_type , dtls_type_client_hello);
EXPECT_EQ(parse_ctx->fragments_head->message_seq , 0);
EXPECT_EQ(parse_ctx->fragments_head->fragment_content_length , 204);
EXPECT_EQ(parse_ctx->fragments_head->fragment_filled_size , 153);
// EXPECT_EQ(*parse_ctx->fragments_head->fragment_content , 254);
dtls_parser_header((const char *)packet_fragment2_bytes, fragment2_len, &header, NULL);
ret=dtls_parser_handshake_header(header.dtls_payload, header.length, &parse_ctx, &handshake_hs, NULL);
EXPECT_EQ(ret , 0);
EXPECT_TRUE(parse_ctx!=NULL);
EXPECT_EQ(parse_ctx->fragments_head->msg_type , dtls_type_client_hello);
EXPECT_EQ(parse_ctx->fragments_head->message_seq , 0);
EXPECT_EQ(parse_ctx->fragments_head->fragment_content_length , 204);
EXPECT_EQ(parse_ctx->fragments_head->fragment_filled_size , 204);
struct dtls_message dtls_msg;
memset(&dtls_msg, 0, sizeof(struct dtls_message));
dtls_parser_hello(NULL, &handshake_hs, &dtls_msg, NULL);
EXPECT_EQ(dtls_msg.msg_type , DTLS_MSG_TYPE_CLIENT_HELLO);
ASSERT_TRUE(dtls_msg.msg_content!=NULL);
struct dtls_handshake *dtls_hs=(struct dtls_handshake *)dtls_msg.msg_content;
char sni_str[512]={0};
memcpy(sni_str, dtls_hs->sni, dtls_hs->sni_sz);
sni_str[dtls_hs->sni_sz]='\0';
EXPECT_STREQ(sni_str, "localhost");
if(dtls_hs->extensions!=NULL) utarray_free(dtls_hs->extensions);
free(dtls_msg.msg_content);
free(parse_ctx->fragments_head->fragment_content);
free(parse_ctx->fragments_head);
free(parse_ctx);
return ;
}
TEST(dtls_decoder, stun_identify_api)
{
const uint8_t udp_payload[]={ 0x00, 0x01, 0x00, 0x50, 0x21, 0x12, 0xa4, 0x42,
0x2f, 0x33, 0x69, 0x73, 0x50, 0x5a, 0x79, 0x4c,
0x48, 0x30, 0x58, 0x41, 0x00, 0x06, 0x00, 0x09,
0x39, 0x47, 0x2f, 0x77, 0x3a, 0x75, 0x67, 0x64,
0x4e, 0x00, 0x00, 0x00, 0xc0, 0x57, 0x00, 0x04,
0x00, 0x00, 0x03, 0xe7, 0x80, 0x2a, 0x00, 0x08,
0x9e, 0x6c, 0x07, 0x60, 0x96, 0x03, 0xf8, 0x59,
0x00, 0x25, 0x00, 0x00, 0x00, 0x24, 0x00, 0x04,
0x6e, 0x00, 0x1e, 0xff, 0x00, 0x08, 0x00, 0x14,
0xfb, 0x01, 0xdf, 0x37, 0x58, 0x2d, 0x37, 0x8b,
0xe0, 0xeb, 0xf2, 0xc3, 0xbe, 0x36, 0xe4, 0x53,
0x7e, 0x03, 0xab, 0xe7, 0x80, 0x28, 0x00, 0x04,
0x3f, 0x4a, 0xd2, 0x71
};
uint32_t udp_payload_len=100;
int ret=stun_identify((const char *)udp_payload, udp_payload_len);
EXPECT_EQ(ret, 1);
return ;
}
TEST(dtls_decoder, dtls_identify_api)
{
const uint8_t udp_payload[187]={ 0x16, 0xfe, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xae, 0x01, 0x00, 0x00,
0xa2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xa2, 0xfe, 0xfd, 0xd6, 0xa5, 0x03, 0x59, 0xdf,
0x0d, 0x31, 0x80, 0xff, 0xd5, 0x30, 0xc7, 0xd4,
0x4d, 0x09, 0x4d, 0xb1, 0x2b, 0x46, 0x5f, 0x23,
0x3f, 0x5b, 0xf8, 0xc1, 0x33, 0x08, 0x9c, 0x0d,
0x57, 0x81, 0x24, 0x20, 0x8c, 0xba, 0x66, 0x7e,
0x10, 0x34, 0x63, 0x68, 0x7b, 0x30, 0x40, 0x4c,
0x20, 0x89, 0x35, 0x08, 0x2e, 0x41, 0x63, 0xd8,
0x7a, 0xe2, 0xa7, 0xb0, 0xff, 0x51, 0x27, 0x72,
0xff, 0xb5, 0xda, 0x61, 0x00, 0x00, 0x02, 0x00,
0x9c, 0x01, 0x00, 0x00, 0x56, 0x00, 0x00, 0x00,
0x1a, 0x00, 0x18, 0x00, 0x00, 0x15, 0x68, 0x61,
0x6e, 0x67, 0x7a, 0x68, 0x6f, 0x75, 0x2e, 0x63,
0x69, 0x73, 0x63, 0x6f, 0x76, 0x6e, 0x70, 0x2e,
0x63, 0x6f, 0x6d, 0x00, 0x16, 0x00, 0x00, 0x00,
0x0d, 0x00, 0x30, 0x00, 0x2e, 0x04, 0x03, 0x05,
0x03, 0x06, 0x03, 0x08, 0x07, 0x08, 0x08, 0x08,
0x09, 0x08, 0x0a, 0x08, 0x0b, 0x08, 0x04, 0x08,
0x05, 0x08, 0x06, 0x04, 0x01, 0x05, 0x01, 0x06,
0x01, 0x03, 0x03, 0x02, 0x03, 0x03, 0x01, 0x02,
0x01, 0x03, 0x02, 0x02, 0x02, 0x04, 0x02, 0x05,
0x02, 0x06, 0x02};
uint32_t udp_payload_len=187;
int32_t ret=dtls_identify((const char *)udp_payload, udp_payload_len);
EXPECT_EQ(ret, 1);
return ;
}
int main(int argc, char const *argv[])
{
::testing::InitGoogleTest(&argc, (char **)argv);
return RUN_ALL_TESTS();
}
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