X-Git-Url: https://git.sesse.net/?p=rdpsrv;a=blobdiff_plain;f=mcs.c;h=b0ddff7dc9a4bd91a76be110b33a6cb7ea173bbd;hp=ac8148b43e16690ede259522354f9bc398c557d6;hb=55a546ab6b5970438e6cca1a962ec4e7dd669d11;hpb=b3ae47054997c61d01087d17a3ab001b0a54324b diff --git a/mcs.c b/mcs.c index ac8148b..b0ddff7 100644 --- a/mcs.c +++ b/mcs.c @@ -19,10 +19,12 @@ */ #include "rdesktop.h" +#include uint16 g_mcs_userid; extern VCHANNEL g_channels[]; extern unsigned int g_num_channels; +extern RSA *privkey; /* Parse an ASN.1 BER header */ static BOOL @@ -89,19 +91,37 @@ ber_out_integer(STREAM s, int value) out_uint16_be(s, value); } +static void +ber_out_uint8(STREAM s, uint8 value) +{ + ber_out_header(s, BER_TAG_INTEGER, 1); + out_uint8(s, value); +} + +static void +ber_in_integer(STREAM s, int *value) +{ + int length; + ber_parse_header(s, BER_TAG_INTEGER, &length); + in_uint16_be(s, *value); +} + /* Output a DOMAIN_PARAMS structure (ASN.1 BER) */ static void mcs_out_domain_params(STREAM s, int max_channels, int max_users, int max_tokens, int max_pdusize) { - ber_out_header(s, MCS_TAG_DOMAIN_PARAMS, 32); - ber_out_integer(s, max_channels); - ber_out_integer(s, max_users); - ber_out_integer(s, max_tokens); - ber_out_integer(s, 1); /* num_priorities */ - ber_out_integer(s, 0); /* min_throughput */ - ber_out_integer(s, 1); /* max_height */ - ber_out_integer(s, max_pdusize); - ber_out_integer(s, 2); /* ver_protocol */ + ber_out_header(s, MCS_TAG_DOMAIN_PARAMS, 26); + ber_out_uint8(s, 34); // max_channels + ber_out_uint8(s, 3); // max_users + ber_out_uint8(s, 0); // max_tokens + ber_out_uint8(s, 1); // num_priorities + ber_out_uint8(s, 0); // min_throughput + ber_out_uint8(s, 1); // max_height + ber_out_header(s, BER_TAG_INTEGER, 3); // pdu size + out_uint8(s, 0x00); + out_uint8(s, 0xff); + out_uint8(s, 0xf8); + ber_out_uint8(s, 2); // ver_protocol } /* Parse a DOMAIN_PARAMS structure (ASN.1 BER) */ @@ -109,87 +129,282 @@ static BOOL mcs_parse_domain_params(STREAM s) { int length; + int max_channels, max_users, max_tokens, max_pdusize; + int num_priorities, min_throughput, max_height; + int ver_protocol; ber_parse_header(s, MCS_TAG_DOMAIN_PARAMS, &length); - in_uint8s(s, length); - + printf("MCS_TAG_DOMAIN_PARAMS, len %u (expected 32)\n", length); + if (length == 32) { + ber_in_integer(s, &max_channels); + ber_in_integer(s, &max_users); + ber_in_integer(s, &max_tokens); + ber_in_integer(s, &num_priorities); + ber_in_integer(s, &min_throughput); + ber_in_integer(s, &max_height); + ber_in_integer(s, &max_pdusize); + ber_in_integer(s, &ver_protocol); + + printf("max_channels=%u\n", max_channels); + printf("max_users=%u\n", max_users); + printf("max_tokens=%u\n", max_tokens); + printf("num_priorities=%u\n", num_priorities); + printf("min_throughput=%u\n", min_throughput); + printf("max_pdusize=%u\n", max_pdusize); + printf("ver_protocol=%u\n", ver_protocol); + } else { + hexdump(s->p, length); + in_uint8s(s, length); + } + return s_check(s); } -/* Send an MCS_CONNECT_INITIAL message (ASN.1 BER) */ -static void -mcs_send_connect_initial(STREAM mcs_data) -{ - int datalen = mcs_data->end - mcs_data->data; - int length = 9 + 3 * 34 + 4 + datalen; - STREAM s; - - s = iso_init(length + 5); - - ber_out_header(s, MCS_CONNECT_INITIAL, length); - ber_out_header(s, BER_TAG_OCTET_STRING, 1); /* calling domain */ - out_uint8(s, 1); - ber_out_header(s, BER_TAG_OCTET_STRING, 1); /* called domain */ - out_uint8(s, 1); - - ber_out_header(s, BER_TAG_BOOLEAN, 1); - out_uint8(s, 0xff); /* upward flag */ - - mcs_out_domain_params(s, 34, 2, 0, 0xffff); /* target params */ - mcs_out_domain_params(s, 1, 1, 1, 0x420); /* min params */ - mcs_out_domain_params(s, 0xffff, 0xfc17, 0xffff, 0xffff); /* max params */ - - ber_out_header(s, BER_TAG_OCTET_STRING, datalen); - out_uint8p(s, mcs_data->data, datalen); - - s_mark_end(s); - iso_send(s); -} - /* Expect a MCS_CONNECT_RESPONSE message (ASN.1 BER) */ -static BOOL -mcs_recv_connect_response(STREAM mcs_data) +BOOL +mcs_recv_connect_initial() { uint8 result; int length; STREAM s; + char *buf; s = iso_recv(); if (s == NULL) return False; - ber_parse_header(s, MCS_CONNECT_RESPONSE, &length); - - ber_parse_header(s, BER_TAG_RESULT, &length); + ber_parse_header(s, MCS_CONNECT_INITIAL, &length); + printf("parsing MCS_CONNECT_INITIAL (len=%u)\n", length); + ber_parse_header(s, BER_TAG_OCTET_STRING, &length); /* calling domain */ + in_uint8(s, result); + ber_parse_header(s, BER_TAG_OCTET_STRING, &length); /* called domain */ + in_uint8(s, result); + + ber_parse_header(s, BER_TAG_BOOLEAN, &length); in_uint8(s, result); - if (result != 0) - { - error("MCS connect: %d\n", result); - return False; - } - ber_parse_header(s, BER_TAG_INTEGER, &length); - in_uint8s(s, length); /* connect id */ + mcs_parse_domain_params(s); + mcs_parse_domain_params(s); mcs_parse_domain_params(s); ber_parse_header(s, BER_TAG_OCTET_STRING, &length); + in_uint8p(s, buf, length); - sec_process_mcs_data(s); - /* - if (length > mcs_data->size) - { - error("MCS data length %d, expected %d\n", length, - mcs_data->size); - length = mcs_data->size; - } - - in_uint8a(s, mcs_data->data, length); - mcs_data->p = mcs_data->data; - mcs_data->end = mcs_data->data + length; - */ + printf("Data from MCS connect: '%*s'\n", length, buf); + return s_check_end(s); } +/* keys grabbed from rdpproxy, look at http://www.cse.unsw.edu.au/~matthewc/rdesktop/rdpproxy/openssl/ */ +unsigned char cacert[] = { + 0x30, 0x82, 0x01, 0x6b, 0x30, 0x82, 0x01, 0x19, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x08, 0x01, + 0x9d, 0xfb, 0xeb, 0x46, 0x78, 0x5b, 0x00, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1d, + 0x05, 0x00, 0x30, 0x34, 0x31, 0x32, 0x30, 0x15, 0x06, 0x03, 0x55, 0x04, 0x03, 0x1e, 0x0e, 0x00, + 0x56, 0x00, 0x49, 0x00, 0x56, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x44, 0x00, 0x49, 0x30, 0x19, 0x06, + 0x03, 0x55, 0x04, 0x07, 0x1e, 0x12, 0x00, 0x57, 0x00, 0x4f, 0x00, 0x52, 0x00, 0x4b, 0x00, 0x47, + 0x00, 0x52, 0x00, 0x4f, 0x00, 0x55, 0x00, 0x50, 0x30, 0x1e, 0x17, 0x0d, 0x30, 0x32, 0x30, 0x36, + 0x33, 0x30, 0x31, 0x35, 0x31, 0x31, 0x31, 0x39, 0x5a, 0x17, 0x0d, 0x30, 0x33, 0x30, 0x36, 0x33, + 0x30, 0x31, 0x35, 0x31, 0x31, 0x31, 0x39, 0x5a, 0x30, 0x34, 0x31, 0x32, 0x30, 0x15, 0x06, 0x03, + 0x55, 0x04, 0x03, 0x1e, 0x0e, 0x00, 0x56, 0x00, 0x49, 0x00, 0x56, 0x00, 0x41, 0x00, 0x4c, 0x00, + 0x44, 0x00, 0x49, 0x30, 0x19, 0x06, 0x03, 0x55, 0x04, 0x07, 0x1e, 0x12, 0x00, 0x57, 0x00, 0x4f, + 0x00, 0x52, 0x00, 0x4b, 0x00, 0x47, 0x00, 0x52, 0x00, 0x4f, 0x00, 0x55, 0x00, 0x50, 0x30, 0x5c, + 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, + 0x4b, 0x00, 0x30, 0x48, 0x02, 0x41, 0x00, 0xc8, 0xc6, 0xb4, 0xd6, 0x31, 0x35, 0x5e, 0x6f, 0x01, + 0x06, 0x1a, 0x02, 0x1d, 0x55, 0x46, 0x91, 0xe6, 0xa0, 0x19, 0x28, 0x4d, 0x87, 0x28, 0x5d, 0x22, + 0xc8, 0xba, 0x8b, 0x6b, 0x93, 0x18, 0xbb, 0x93, 0x47, 0x14, 0xe5, 0x85, 0xe4, 0xfc, 0x49, 0x3d, + 0x94, 0xbd, 0x5b, 0x2f, 0x7d, 0x0e, 0xa4, 0xa8, 0xc2, 0x79, 0x7c, 0x74, 0x6e, 0x39, 0x5d, 0x8a, + 0xe4, 0x71, 0x22, 0xca, 0x37, 0x7e, 0x49, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x13, 0x30, 0x11, + 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x04, 0x08, 0x30, 0x06, 0x01, 0x01, 0xff, 0x02, 0x01, + 0x00, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1d, 0x05, 0x00, 0x03, 0x41, 0x00, 0x12, + 0x79, 0xdd, 0xf9, 0x90, 0xb0, 0x39, 0x24, 0x35, 0x4d, 0x0b, 0xc6, 0xff, 0x8a, 0x96, 0x10, 0x4b, + 0xac, 0xd0, 0x26, 0x5e, 0x44, 0xe1, 0x09, 0x72, 0x1b, 0xad, 0x4e, 0x34, 0x78, 0x32, 0xde, 0x29, + 0x11, 0x08, 0x31, 0xba, 0x6d, 0x1b, 0x42, 0x7a, 0xa7, 0x45, 0xc6, 0xb7, 0xd3, 0xd3, 0x0f, 0x8b, + 0xf3, 0xe5, 0x57, 0xde, 0x0d, 0x0c, 0xc1, 0x75, 0x60, 0x57, 0x1c, 0x0e, 0xf8, 0xf3, 0x0c +}; +unsigned char server_cert[] = { + 0x30, 0x82, 0x03, 0x79, 0x30, 0x82, 0x03, 0x27, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x05, 0x01, + 0x00, 0x00, 0x00, 0x03, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1d, 0x05, 0x00, 0x30, + 0x34, 0x31, 0x32, 0x30, 0x15, 0x06, 0x03, 0x55, 0x04, 0x03, 0x1e, 0x0e, 0x00, 0x56, 0x00, 0x49, + 0x00, 0x56, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x44, 0x00, 0x49, 0x30, 0x19, 0x06, 0x03, 0x55, 0x04, + 0x07, 0x1e, 0x12, 0x00, 0x57, 0x00, 0x4f, 0x00, 0x52, 0x00, 0x4b, 0x00, 0x47, 0x00, 0x52, 0x00, + 0x4f, 0x00, 0x55, 0x00, 0x50, 0x30, 0x1e, 0x17, 0x0d, 0x30, 0x32, 0x30, 0x36, 0x33, 0x30, 0x31, + 0x35, 0x31, 0x32, 0x30, 0x38, 0x5a, 0x17, 0x0d, 0x30, 0x33, 0x30, 0x36, 0x33, 0x30, 0x31, 0x35, + 0x31, 0x32, 0x30, 0x38, 0x5a, 0x30, 0x81, 0x92, 0x31, 0x81, 0x8f, 0x30, 0x25, 0x06, 0x03, 0x55, + 0x04, 0x03, 0x1e, 0x1e, 0x00, 0x6e, 0x00, 0x63, 0x00, 0x61, 0x00, 0x6c, 0x00, 0x72, 0x00, 0x70, + 0x00, 0x63, 0x00, 0x3a, 0x00, 0x56, 0x00, 0x49, 0x00, 0x56, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x44, + 0x00, 0x49, 0x30, 0x25, 0x06, 0x03, 0x55, 0x04, 0x07, 0x1e, 0x1e, 0x00, 0x6e, 0x00, 0x63, 0x00, + 0x61, 0x00, 0x6c, 0x00, 0x72, 0x00, 0x70, 0x00, 0x63, 0x00, 0x3a, 0x00, 0x56, 0x00, 0x49, 0x00, + 0x56, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x44, 0x00, 0x49, 0x30, 0x3f, 0x06, 0x03, 0x55, 0x04, 0x05, + 0x1e, 0x38, 0x00, 0x31, 0x00, 0x42, 0x00, 0x63, 0x00, 0x4b, 0x00, 0x65, 0x00, 0x57, 0x00, 0x39, + 0x00, 0x64, 0x00, 0x34, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x59, 0x00, 0x44, 0x00, 0x48, 0x00, 0x2f, + 0x00, 0x56, 0x00, 0x35, 0x00, 0x65, 0x00, 0x67, 0x00, 0x45, 0x00, 0x72, 0x00, 0x70, 0x00, 0x66, + 0x00, 0x55, 0x00, 0x55, 0x00, 0x4f, 0x00, 0x63, 0x00, 0x3d, 0x30, 0x5c, 0x30, 0x0d, 0x06, 0x09, + 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x4b, 0x00, 0x30, 0x48, + 0x02, 0x41, 0x00, 0xb6, 0x88, 0xff, 0x4a, 0x6d, 0x44, 0x59, 0x6c, 0x3a, 0xe8, 0x5b, 0x53, 0x72, + 0x2e, 0x0a, 0x3f, 0x0b, 0xbf, 0x33, 0x87, 0x25, 0x30, 0xeb, 0x82, 0xf7, 0xd4, 0x98, 0xf1, 0x60, + 0xee, 0x6e, 0x99, 0xdd, 0x6f, 0x07, 0xd9, 0xc0, 0xa1, 0x6c, 0x1c, 0x50, 0xd7, 0xc1, 0x18, 0xe1, + 0x5e, 0x70, 0x89, 0x3e, 0x6a, 0x98, 0x2c, 0x8b, 0xef, 0x76, 0x6d, 0x9b, 0x70, 0xb8, 0xd7, 0x41, + 0x25, 0xa1, 0x01, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x82, 0x01, 0xc3, 0x30, 0x82, 0x01, 0xbf, + 0x30, 0x14, 0x06, 0x09, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0x37, 0x12, 0x04, 0x01, 0x01, 0xff, + 0x04, 0x04, 0x01, 0x00, 0x05, 0x00, 0x30, 0x3c, 0x06, 0x09, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, + 0x37, 0x12, 0x02, 0x01, 0x01, 0xff, 0x04, 0x2c, 0x4d, 0x00, 0x69, 0x00, 0x63, 0x00, 0x72, 0x00, + 0x6f, 0x00, 0x73, 0x00, 0x6f, 0x00, 0x66, 0x00, 0x74, 0x00, 0x20, 0x00, 0x43, 0x00, 0x6f, 0x00, + 0x72, 0x00, 0x70, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x61, 0x00, 0x74, 0x00, 0x69, 0x00, 0x6f, 0x00, + 0x6e, 0x00, 0x00, 0x00, 0x30, 0x81, 0xcd, 0x06, 0x09, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0x37, + 0x12, 0x05, 0x01, 0x01, 0xff, 0x04, 0x81, 0xbc, 0x00, 0x30, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, + 0x02, 0x00, 0x00, 0x00, 0x09, 0x04, 0x00, 0x00, 0x1c, 0x00, 0x4a, 0x00, 0x66, 0x00, 0x4a, 0x00, + 0xb0, 0x00, 0x01, 0x00, 0x33, 0x00, 0x64, 0x00, 0x32, 0x00, 0x36, 0x00, 0x37, 0x00, 0x39, 0x00, + 0x35, 0x00, 0x34, 0x00, 0x2d, 0x00, 0x65, 0x00, 0x65, 0x00, 0x62, 0x00, 0x37, 0x00, 0x2d, 0x00, + 0x31, 0x00, 0x31, 0x00, 0x64, 0x00, 0x31, 0x00, 0x2d, 0x00, 0x62, 0x00, 0x39, 0x00, 0x34, 0x00, + 0x65, 0x00, 0x2d, 0x00, 0x30, 0x00, 0x30, 0x00, 0x63, 0x00, 0x30, 0x00, 0x34, 0x00, 0x66, 0x00, + 0x61, 0x00, 0x33, 0x00, 0x30, 0x00, 0x38, 0x00, 0x30, 0x00, 0x64, 0x00, 0x00, 0x00, 0x33, 0x00, + 0x64, 0x00, 0x32, 0x00, 0x36, 0x00, 0x37, 0x00, 0x39, 0x00, 0x35, 0x00, 0x34, 0x00, 0x2d, 0x00, + 0x65, 0x00, 0x65, 0x00, 0x62, 0x00, 0x37, 0x00, 0x2d, 0x00, 0x31, 0x00, 0x31, 0x00, 0x64, 0x00, + 0x31, 0x00, 0x2d, 0x00, 0x62, 0x00, 0x39, 0x00, 0x34, 0x00, 0x65, 0x00, 0x2d, 0x00, 0x30, 0x00, + 0x30, 0x00, 0x63, 0x00, 0x30, 0x00, 0x34, 0x00, 0x66, 0x00, 0x61, 0x00, 0x33, 0x00, 0x30, 0x00, + 0x38, 0x00, 0x30, 0x00, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0xd4, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x30, 0x70, 0x06, 0x09, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0x37, 0x12, + 0x06, 0x01, 0x01, 0xff, 0x04, 0x60, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x40, 0x00, + 0x56, 0x00, 0x49, 0x00, 0x56, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x44, 0x00, 0x49, 0x00, 0x00, 0x00, + 0x35, 0x00, 0x31, 0x00, 0x38, 0x00, 0x37, 0x00, 0x39, 0x00, 0x2d, 0x00, 0x33, 0x00, 0x33, 0x00, + 0x35, 0x00, 0x2d, 0x00, 0x38, 0x00, 0x33, 0x00, 0x39, 0x00, 0x31, 0x00, 0x30, 0x00, 0x30, 0x00, + 0x37, 0x00, 0x2d, 0x00, 0x35, 0x00, 0x39, 0x00, 0x33, 0x00, 0x37, 0x00, 0x38, 0x00, 0x00, 0x00, + 0x57, 0x00, 0x4f, 0x00, 0x52, 0x00, 0x4b, 0x00, 0x47, 0x00, 0x52, 0x00, 0x4f, 0x00, 0x55, 0x00, + 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x27, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x01, 0x01, 0xff, + 0x04, 0x1d, 0x30, 0x1b, 0xa1, 0x12, 0xa4, 0x10, 0x56, 0x00, 0x49, 0x00, 0x56, 0x00, 0x41, 0x00, + 0x4c, 0x00, 0x44, 0x00, 0x49, 0x00, 0x00, 0x00, 0x82, 0x05, 0x01, 0x00, 0x00, 0x00, 0x03, 0x30, + 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1d, 0x05, 0x00, 0x03, 0x41, 0x00, 0xa8, 0x61, 0x11, + 0x69, 0xab, 0x41, 0xee, 0x71, 0xd0, 0xa8, 0x4c, 0x8f, 0x65, 0x9d, 0x9d, 0xaf, 0xab, 0x4f, 0x43, + 0xaf, 0xa8, 0x21, 0xb7, 0xf2, 0x2c, 0x3a, 0xa5, 0xfe, 0x9e, 0x2c, 0xbc, 0xbb, 0x5c, 0x64, 0x31, + 0x15, 0x3c, 0xdc, 0x09, 0x4c, 0x36, 0x9a, 0x2b, 0x5e, 0xe0, 0xe6, 0x07, 0x79, 0xfd, 0xcd, 0x1d, + 0x06, 0x63, 0xfa, 0xb4, 0x2c, 0xcc, 0x00, 0x25, 0x43, 0x71, 0x65, 0xff, 0xf7 +}; +unsigned char private_key[] = { + 0x30, 0x82, 0x01, 0x3a, 0x02, 0x01, 0x00, 0x02, 0x41, 0x00, 0xb6, 0x88, 0xff, 0x4a, 0x6d, 0x44, + 0x59, 0x6c, 0x3a, 0xe8, 0x5b, 0x53, 0x72, 0x2e, 0x0a, 0x3f, 0x0b, 0xbf, 0x33, 0x87, 0x25, 0x30, + 0xeb, 0x82, 0xf7, 0xd4, 0x98, 0xf1, 0x60, 0xee, 0x6e, 0x99, 0xdd, 0x6f, 0x07, 0xd9, 0xc0, 0xa1, + 0x6c, 0x1c, 0x50, 0xd7, 0xc1, 0x18, 0xe1, 0x5e, 0x70, 0x89, 0x3e, 0x6a, 0x98, 0x2c, 0x8b, 0xef, + 0x76, 0x6d, 0x9b, 0x70, 0xb8, 0xd7, 0x41, 0x25, 0xa1, 0x01, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, + 0x40, 0x1f, 0xf8, 0x02, 0x6e, 0x30, 0x90, 0xe5, 0xf0, 0x74, 0xa8, 0xb9, 0x45, 0xf6, 0x1b, 0x66, + 0x24, 0x00, 0x94, 0xae, 0x1b, 0x9f, 0x41, 0xe0, 0x1d, 0x81, 0xf6, 0x34, 0x0b, 0x22, 0x64, 0xdf, + 0xed, 0xbb, 0x05, 0xfb, 0x56, 0xcb, 0xb7, 0xef, 0x14, 0xf6, 0xb7, 0x62, 0xb5, 0x5c, 0xaf, 0x98, + 0xf8, 0x90, 0x4d, 0x40, 0x4b, 0xc4, 0xf2, 0x1c, 0x79, 0xe5, 0x81, 0x4c, 0xae, 0xa9, 0x60, 0xf3, + 0x21, 0x02, 0x21, 0x00, 0xdb, 0x74, 0x23, 0x81, 0x46, 0xa4, 0x28, 0x97, 0xc1, 0x88, 0x3f, 0x07, + 0xbd, 0xdc, 0x39, 0xa7, 0x16, 0xff, 0x75, 0xaa, 0x5e, 0x61, 0xff, 0xe4, 0x5c, 0x0e, 0x3d, 0xbd, + 0x05, 0x90, 0xc8, 0xbd, 0x02, 0x21, 0x00, 0xd4, 0xee, 0xed, 0xdf, 0xca, 0x71, 0xb7, 0x07, 0xb5, + 0x87, 0xf2, 0xe7, 0xfa, 0xd9, 0xa6, 0xe3, 0x5f, 0xe5, 0x2a, 0x9a, 0xaf, 0x23, 0x88, 0xbc, 0x52, + 0xb7, 0xad, 0x1b, 0x9d, 0x3c, 0x27, 0x95, 0x02, 0x20, 0x74, 0x47, 0x3c, 0x4c, 0xd2, 0x46, 0x46, + 0xef, 0xe9, 0xee, 0xac, 0x1f, 0x08, 0xfd, 0x78, 0x5a, 0xcd, 0x77, 0xbc, 0x3b, 0xf2, 0x58, 0x90, + 0xc2, 0xc9, 0xf8, 0x0d, 0xc4, 0x6a, 0xff, 0x85, 0x2d, 0x02, 0x21, 0x00, 0xa2, 0x4e, 0x79, 0x8d, + 0x83, 0x3f, 0xc8, 0xb7, 0x1c, 0x9d, 0x42, 0xff, 0xa6, 0xcb, 0x6f, 0x15, 0x94, 0x0c, 0x17, 0xbc, + 0x8e, 0xd1, 0x74, 0x31, 0xb0, 0x8f, 0x87, 0x69, 0x2c, 0x22, 0x25, 0x3d, 0x02, 0x20, 0x24, 0x9e, + 0xf6, 0x03, 0x5f, 0x7e, 0x2d, 0xc7, 0x8c, 0x88, 0xf7, 0x43, 0x14, 0xb7, 0x75, 0x72, 0x1e, 0x16, + 0xae, 0x43, 0x71, 0x97, 0xcc, 0xc2, 0x0c, 0xde, 0x63, 0x35, 0x87, 0x50, 0xbf, 0xad +}; + +void +mcs_send_connect_response() +{ + STREAM s; + int i, length; + + s = iso_init(174 + sizeof(cacert) + sizeof(server_cert)); + printf("INITLEN: %u\n", s->p - s->iso_hdr); + + ber_out_header(s, MCS_CONNECT_RESPONSE, 169 + sizeof(cacert) + sizeof(server_cert) ); + ber_out_header(s, BER_TAG_RESULT, 1); + out_uint8(s, 0); + + ber_out_header(s, BER_TAG_INTEGER, 1); + out_uint8(s, 0); // connect id + + mcs_out_domain_params(s, 34, 2, 0, 0xffff); // dumdidum? + + ber_out_header(s, BER_TAG_OCTET_STRING, 131 + sizeof(cacert) + sizeof(server_cert)); + + // some unknown header of sorts + out_uint8(s, 0x00); + out_uint8(s, 0x05); + out_uint8(s, 0x00); + out_uint8(s, 0x14); + out_uint8(s, 0x7c); + out_uint8(s, 0x00); + out_uint8(s, 0x01); + out_uint8(s, 0x2a); + out_uint8(s, 0x14); + out_uint8(s, 0x76); + out_uint8(s, 0x0a); + out_uint8(s, 0x01); + out_uint8(s, 0x01); + out_uint8(s, 0x00); + out_uint8(s, 0x01); + out_uint8(s, 0xc0); + out_uint8(s, 0x00); + out_uint8(s, 0x4d); + out_uint8(s, 0x63); + out_uint8(s, 0x44); + out_uint8(s, 0x6e); + + length = 108 + sizeof(cacert) + sizeof(server_cert); + + // two bytes of length + out_uint8(s, 0x80 | (length >> 8)); + out_uint8(s, length & 0xff); + + // server info -- we claim to support RDP5 + out_uint16_le(s, SEC_TAG_SRV_INFO); + out_uint16_le(s, 8); // length + out_uint16_le(s, 4); // version + out_uint16_le(s, 8); // unknown + + // channel info -- open a few channels + out_uint16_le(s, SEC_TAG_SRV_CHANNELS); + out_uint16_le(s, 16); // length + out_uint16_le(s, 1003); + out_uint16_le(s, 3); + out_uint16_le(s, 1004); + out_uint16_le(s, 1005); + out_uint16_le(s, 1006); + out_uint16_le(s, 0); + + // crypto info + out_uint16_le(s, SEC_TAG_SRV_CRYPT); + out_uint16_le(s, 84 + sizeof(cacert) + sizeof(server_cert)); // length + out_uint32_le(s, 1); // 128-bit + out_uint32_le(s, 2); // medium + + out_uint32_le(s, SEC_RANDOM_SIZE); // random_len + out_uint32_le(s, 32 + sizeof(cacert) + sizeof(server_cert)); // rsa_info_len + out_uint8p(s, cacert, SEC_RANDOM_SIZE); // server_"random" + out_uint32_le(s, 0x80000002); // X.509 + out_uint32_le(s, 2); // number of certificates + + // CA certificate + out_uint32_le(s, sizeof(cacert)); + out_uint8p(s, cacert, sizeof(cacert)); + + // server certificate + out_uint32_le(s, sizeof(server_cert)); + out_uint8p(s, server_cert, sizeof(server_cert)); + + out_uint8s(s, 16); // padding + + s_mark_end(s); + iso_send(s); + + // this is a good time to load our private key :-) + { + unsigned char *buf = (unsigned char *)malloc(1024); + const unsigned char *ptr = buf; + memcpy(buf, private_key, sizeof(private_key)); + privkey = d2i_RSAPrivateKey(NULL, &ptr, sizeof(private_key)); + RSA_blinding_off(privkey); // fix Valgrind hits -- YES, I know it's evil + free(buf); + + printf("Loaded private key (%u bytes)\n", sizeof(private_key)); + } +} + /* Send an EDrq message (ASN.1 PER) */ static void mcs_send_edrq(void) @@ -220,35 +435,20 @@ mcs_send_aurq(void) iso_send(s); } -/* Expect a AUcf message (ASN.1 PER) */ -static BOOL -mcs_recv_aucf(uint16 * mcs_userid) +/* Send a AUcf message (ASN.1 PER) */ +static void +mcs_send_aucf(uint16 mcs_userid) { - uint8 opcode, result; STREAM s; - s = iso_recv(); - if (s == NULL) - return False; - - in_uint8(s, opcode); - if ((opcode >> 2) != MCS_AUCF) - { - error("expected AUcf, got %d\n", opcode); - return False; - } + s = iso_init(4); - in_uint8(s, result); - if (result != 0) - { - error("AUrq: %d\n", result); - return False; - } - - if (opcode & 2) - in_uint16_be(s, *mcs_userid); - - return s_check_end(s); + out_uint8(s, (MCS_AUCF << 2) | 2); // | 2 = send user ID + out_uint8(s, 0); // success + out_uint16_be(s, 6); + + s_mark_end(s); + iso_send(s); } /* Send a CJrq message (ASN.1 PER) */ @@ -270,35 +470,21 @@ mcs_send_cjrq(uint16 chanid) } /* Expect a CJcf message (ASN.1 PER) */ -static BOOL -mcs_recv_cjcf(void) +static void +mcs_send_cjcf(uint16 userid, uint16 chanid) { - uint8 opcode, result; STREAM s; - s = iso_recv(); - if (s == NULL) - return False; - - in_uint8(s, opcode); - if ((opcode >> 2) != MCS_CJCF) - { - error("expected CJcf, got %d\n", opcode); - return False; - } - - in_uint8(s, result); - if (result != 0) - { - error("CJrq: %d\n", result); - return False; - } + s = iso_init(8); - in_uint8s(s, 4); /* mcs_userid, req_chanid */ - if (opcode & 2) - in_uint8s(s, 2); /* join_chanid */ + out_uint8(s, (MCS_CJCF << 2) | 2); + out_uint8(s, 0); // success + out_uint16_be(s, 6); + out_uint16_be(s, chanid); + out_uint16_be(s, chanid); - return s_check_end(s); + s_mark_end(s); + iso_send(s); } /* Initialise an MCS transport data packet */ @@ -323,7 +509,7 @@ mcs_send_to_channel(STREAM s, uint16 channel) length = s->end - s->p - 8; length |= 0x8000; - out_uint8(s, (MCS_SDRQ << 2)); + out_uint8(s, (MCS_SDIN << 2)); out_uint16_be(s, g_mcs_userid); out_uint16_be(s, channel); out_uint8(s, 0x70); /* flags */ @@ -343,7 +529,7 @@ mcs_send(STREAM s) STREAM mcs_recv(uint16 * channel) { - uint8 opcode, appid, length; + uint8 opcode, appid, length, userid; STREAM s; s = iso_recv(); @@ -352,23 +538,41 @@ mcs_recv(uint16 * channel) in_uint8(s, opcode); appid = opcode >> 2; - if (appid != MCS_SDIN) - { - if (appid != MCS_DPUM) - { - error("expected data, got %d\n", opcode); - } + + switch (appid) { + case MCS_SDRQ: + in_uint8s(s, 2); /* userid */ + in_uint16_be(s, *channel); + in_uint8s(s, 1); /* flags */ + in_uint8(s, length); + if (length & 0x80) + in_uint8s(s, 1); /* second byte of length */ + + return s; + case MCS_DPUM: + printf("Received DPUM (?)\n"); + return NULL; + case MCS_EDRQ: + // Erect Domain (ignore) + printf("Received EDrq\n"); + return NULL; + case MCS_AURQ: + // Attach User Request, respond with AUcf (Attach User Confirm) + printf("Received AUrq, sending AUcf\n"); + mcs_send_aucf(0); + return NULL; + case MCS_CJRQ: + // Channel Join Request, respond with CJcf (Channel Join Confirm); + in_uint16_be(s, userid); + in_uint16_be(s, *channel); + printf("Received CJrq for channel %hu, sending CJcf\n", *channel); + mcs_send_cjcf(userid, *channel); + return NULL; + default: + error("expected data, got %d\n", opcode); return NULL; } - in_uint8s(s, 2); /* userid */ - in_uint16_be(s, *channel); - in_uint8s(s, 1); /* flags */ - in_uint8(s, length); - if (length & 0x80) - in_uint8s(s, 1); /* second byte of length */ - - return s; } /* Disconnect from the MCS layer */