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Make use of constants defined in specification instead of

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magic character numbers found in protocol stream for clarity.



git-svn-id: svn://svn.code.sf.net/p/rdesktop/code/rdesktop/trunk@1828 423420c4-83ab-492f-b58f-81f9feb106b5
This commit is contained in:
Henrik Andersson 2014-09-09 12:34:09 +00:00
parent 4707416314
commit 0440d0faca
2 changed files with 67 additions and 51 deletions
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18
constants.h
View File

@ -450,6 +450,24 @@ enum RDP_INPUT_DEVICE
#define TSSNDCAPS_VOLUME 0x00000002
/* RDPDR constants */
#define RDPDR_CTYP_CORE 0x4472
#define RDPDR_CTYP_PRN 0x5052
#define PAKID_CORE_SERVER_ANNOUNCE 0x496e
#define PAKID_CORE_CLIENTID_CONFIRM 0x4343
#define PAKID_CORE_CLIENT_NAME 0x434e
#define PAKID_CORE_DEVICE_LIST_ANNOUNCE 0x4441
#define PAKID_CORE_DEVICE_REPLY 0x6472
#define PAKID_CORE_DEVICE_IOREQUEST 0x4952
#define PAKID_CORE_DEVICE_IOCOMPLETION 0x4943
#define PAKID_CORE_SERVER_CAPABILITY 0x5350
#define PAKID_CORE_CLIENT_CAPABILITY 0x4350
#define PAKID_CORE_DEVICELIST_REMOVE 0x444d
#define PAKID_PRN_CACHE_DATA 0x5043
#define PAKID_CORE_USER_LOGGEDON 0x554c
#define PAKID_PRN_USING_XPS 0x5543
#define RDPDR_MAX_DEVICES 0x10
#define DEVICE_TYPE_SERIAL 0x01
#define DEVICE_TYPE_PARALLEL 0x02

100
rdpdr.c
View File

@ -2,7 +2,7 @@
rdesktop: A Remote Desktop Protocol client.
Copyright (C) Matthew Chapman <matthewc.unsw.edu.au> 1999-2008
Copyright 2004-2011 Peter Astrand <astrand@cendio.se> for Cendio AB
Copyright 2010-2013 Henrik Andersson <hean01@cendio.se> for Cendio AB
Copyright 2010-2014 Henrik Andersson <hean01@cendio.se> for Cendio AB
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -188,11 +188,10 @@ add_async_iorequest(uint32 device, uint32 file, uint32 id, uint32 major, uint32
static void
rdpdr_send_connect(void)
{
uint8 magic[4] = "rDCC";
STREAM s;
s = channel_init(rdpdr_channel, 12);
out_uint8a(s, magic, 4);
out_uint16_le(s, RDPDR_CTYP_CORE);
out_uint16_le(s, PAKID_CORE_CLIENTID_CONFIRM);
out_uint16_le(s, 1); /* unknown */
out_uint16_le(s, 5);
out_uint32_be(s, 0x815ed39d); /* IP address (use 127.0.0.1) 0x815ed39d */
@ -204,7 +203,6 @@ rdpdr_send_connect(void)
static void
rdpdr_send_name(void)
{
uint8 magic[4] = "rDNC";
STREAM s;
uint32 hostlen;
@ -215,7 +213,8 @@ rdpdr_send_name(void)
hostlen = (strlen(g_rdpdr_clientname) + 1) * 2;
s = channel_init(rdpdr_channel, 16 + hostlen);
out_uint8a(s, magic, 4);
out_uint16_le(s, RDPDR_CTYP_CORE);
out_uint16_le(s, PAKID_CORE_CLIENT_NAME);
out_uint16_le(s, 0x63); /* unknown */
out_uint16_le(s, 0x72);
out_uint32(s, 0);
@ -256,15 +255,15 @@ announcedata_size()
static void
rdpdr_send_available(void)
{
uint8 magic[4] = "rDAD";
uint32 driverlen, printerlen, bloblen;
int i;
STREAM s;
PRINTER *printerinfo;
s = channel_init(rdpdr_channel, announcedata_size());
out_uint8a(s, magic, 4);
out_uint16_le(s, RDPDR_CTYP_CORE);
out_uint16_le(s, PAKID_CORE_DEVICE_LIST_ANNOUNCE);
out_uint32_le(s, g_num_devices);
for (i = 0; i < g_num_devices; i++)
@ -317,14 +316,14 @@ void
rdpdr_send_completion(uint32 device, uint32 id, uint32 status, uint32 result, uint8 * buffer,
uint32 length)
{
uint8 magic[4] = "rDCI";
STREAM s;
#ifdef WITH_SCARD
scard_lock(SCARD_LOCK_RDPDR);
#endif
s = channel_init(rdpdr_channel, 20 + length);
out_uint8a(s, magic, 4);
out_uint16_le(s, RDPDR_CTYP_CORE);
out_uint16_le(s, PAKID_CORE_DEVICE_IOCOMPLETION);
out_uint32_le(s, device);
out_uint32_le(s, id);
out_uint32_le(s, status);
@ -756,11 +755,10 @@ rdpdr_process_irp(STREAM s)
static void
rdpdr_send_clientcapability(void)
{
uint8 magic[4] = "rDPC";
STREAM s;
s = channel_init(rdpdr_channel, 0x50);
out_uint8a(s, magic, 4);
out_uint16_le(s, RDPDR_CTYP_CORE);
out_uint16_le(s, PAKID_CORE_CLIENT_CAPABILITY);
out_uint32_le(s, 5); /* count */
out_uint16_le(s, 1); /* first */
out_uint16_le(s, 0x28); /* length */
@ -797,58 +795,58 @@ static void
rdpdr_process(STREAM s)
{
uint32 handle;
uint8 *magic;
uint16 component;
uint16 pakid;
#if WITH_DEBUG_RDP5
printf("--- rdpdr_process ---\n");
hexdump(s->p, s->end - s->p);
#endif
in_uint8p(s, magic, 4);
if ((magic[0] == 'r') && (magic[1] == 'D'))
in_uint16(s, component);
in_uint16(s, pakid);
if (component == RDPDR_CTYP_CORE)
{
if ((magic[2] == 'R') && (magic[3] == 'I'))
switch (pakid)
{
rdpdr_process_irp(s);
return;
}
if ((magic[2] == 'n') && (magic[3] == 'I'))
{
rdpdr_send_connect();
rdpdr_send_name();
return;
}
if ((magic[2] == 'C') && (magic[3] == 'C'))
{
/* connect from server */
rdpdr_send_clientcapability();
rdpdr_send_available();
return;
}
if ((magic[2] == 'r') && (magic[3] == 'd'))
{
/* connect to a specific resource */
in_uint32(s, handle);
case PAKID_CORE_DEVICE_IOREQUEST:
rdpdr_process_irp(s);
break;
case PAKID_CORE_SERVER_ANNOUNCE:
rdpdr_send_connect();
rdpdr_send_name();
break;
case PAKID_CORE_CLIENTID_CONFIRM:
rdpdr_send_clientcapability();
rdpdr_send_available();
break;
case PAKID_CORE_DEVICE_REPLY:
in_uint32(s, handle);
#if WITH_DEBUG_RDP5
DEBUG(("RDPDR: Server connected to resource %d\n", handle));
DEBUG(("RDPDR: Server connected to resource %d\n", handle));
#endif
return;
}
if ((magic[2] == 'P') && (magic[3] == 'S'))
{
/* server capability */
return;
break;
case PAKID_CORE_SERVER_CAPABILITY:
break;
default:
unimpl("RDPDR pakid 0x%x of component 0x%x\n", pakid, component);
break;
}
}
if ((magic[0] == 'R') && (magic[1] == 'P'))
else if (component == RDPDR_CTYP_PRN)
{
if ((magic[2] == 'C') && (magic[3] == 'P'))
{
if (pakid == PAKID_PRN_CACHE_DATA)
printercache_process(s);
return;
}
}
unimpl("RDPDR packet type %c%c%c%c\n", magic[0], magic[1], magic[2], magic[3]);
else
unimpl("RDPDR component 0x%x\n", component);
}
RD_BOOL