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libfreerdp-core: document MS-RPCH connection establishment

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This commit is contained in:
Marc-André Moreau 2012-04-21 14:27:13 -04:00
parent 25efe0f20f
commit 2e5215ba3a
1 changed files with 44 additions and 5 deletions
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49
libfreerdp-core/rpc.c
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@ -227,9 +227,13 @@ boolean rpc_out_connect_http(rdpRpc* rpc)
s = rpc_ntlm_http_data(rpc, "RPC_OUT_DATA", &http_out_ntlm->outputBuffer, NULL, 0);
/* Send OUT Channel Request */
DEBUG_RPC("\n%s", s->data);
tls_write_all(tls_out, s->data, s->size);
/* Receive OUT Channel Response */
http_response = http_response_recv(tls_out);
crypto_base64_decode((uint8*) http_response->AuthParam, strlen(http_response->AuthParam),
@ -242,6 +246,8 @@ boolean rpc_out_connect_http(rdpRpc* rpc)
s = rpc_ntlm_http_data(rpc, "RPC_OUT_DATA", &http_out_ntlm->outputBuffer, NULL, 76);
/* Send OUT Channel Request */
DEBUG_RPC("\n%s", s->data);
tls_write_all(tls_out, s->data, s->size);
@ -267,9 +273,13 @@ boolean rpc_in_connect_http(rdpRpc* rpc)
http_stream = rpc_ntlm_http_data(rpc, "RPC_IN_DATA", &http_in_ntlm->outputBuffer, NULL, 0);
/* Send IN Channel Request */
DEBUG_RPC("\n%s", http_stream->data);
tls_write_all(tls_in, http_stream->data, http_stream->size);
/* Receive IN Channel Response */
http_response = http_response_recv(tls_in);
crypto_base64_decode((uint8*) http_response->AuthParam, strlen(http_response->AuthParam),
@ -282,6 +292,8 @@ boolean rpc_in_connect_http(rdpRpc* rpc)
http_stream = rpc_ntlm_http_data(rpc, "RPC_IN_DATA", &http_in_ntlm->outputBuffer, NULL, 0x40000000);
/* Send IN Channel Request */
DEBUG_RPC("\n%s", http_stream->data);
tls_write_all(tls_in, http_stream->data, http_stream->size);
@ -1006,12 +1018,37 @@ int rpc_read(rdpRpc* rpc, uint8* data, int length)
return read;
}
/**
* Connection Establishment\n
*
* Client Outbound Proxy Inbound Proxy Server\n
* | | | |\n
* |-----------------IN Channel Request--------------->| |\n
* |---OUT Channel Request-->| |<-Legacy Server Response-|\n
* | |<--------------Legacy Server Response--------------|\n
* | | | |\n
* |---------CONN_A1-------->| | |\n
* |----------------------CONN_B1--------------------->| |\n
* | |----------------------CONN_A2--------------------->|\n
* | | | |\n
* |<--OUT Channel Response--| |---------CONN_B2-------->|\n
* |<--------CONN_A3---------| | |\n
* | |<---------------------CONN_C1----------------------|\n
* | | |<--------CONN_B3---------|\n
* |<--------CONN_C2---------| | |\n
* | | | |\n
*
*/
boolean rpc_connect(rdpRpc* rpc)
{
int status;
uint8* pdu;
int pdu_length;
pdu_length = 0xFFFF;
pdu = xmalloc(pdu_length);
if (!rpc_out_connect_http(rpc))
{
printf("rpc_out_connect_http error!\n");
@ -1024,11 +1061,6 @@ boolean rpc_connect(rdpRpc* rpc)
return false;
}
pdu_length = 0xFFFF;
pdu = xmalloc(pdu_length);
status = rpc_out_read(rpc, pdu, pdu_length);
if (!rpc_in_connect_http(rpc))
{
printf("rpc_in_connect_http error!\n");
@ -1041,6 +1073,13 @@ boolean rpc_connect(rdpRpc* rpc)
return false;
}
/* Receive OUT Channel Response */
status = rpc_out_read(rpc, pdu, pdu_length);
/* Receive CONN_A3 RTS PDU */
status = rpc_out_read(rpc, pdu, pdu_length);
/* Receive CONN_C2 RTS PDU */
status = rpc_out_read(rpc, pdu, pdu_length);
/* [MS-RPCH] 3.2.1.5.3.1 Connection Establishment