1 files changed, 494 insertions, 428 deletions

diff --git a/rdp/rdp_mcs.c b/rdp/rdp_mcs.c
index 4b8993da..3f5162f3 100644
--- a/rdp/rdp_mcs.c
+++ b/rdp/rdp_mcs.c
@@ -1,562 +1,628 @@
-/*
-   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
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-   xrdp: A Remote Desktop Protocol server.
-   Copyright (C) Jay Sorg 2005-2010
-
-   librdp mcs layer
-
-*/
+/**
+ * xrdp: A Remote Desktop Protocol server.
+ *
+ * Copyright (C) Jay Sorg 2004-2012
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * librdp mcs layer
+ */
 
 #include "rdp.h"
 
 /*****************************************************************************/
-struct rdp_mcs* APP_CC
-rdp_mcs_create(struct rdp_sec* owner,
-               struct stream* client_mcs_data,
-               struct stream* server_mcs_data)
+struct rdp_mcs *APP_CC
+rdp_mcs_create(struct rdp_sec *owner,
+               struct stream *client_mcs_data,
+               struct stream *server_mcs_data)
 {
-  struct rdp_mcs* self;
-
-  self = (struct rdp_mcs*)g_malloc(sizeof(struct rdp_mcs), 1);
-  self->sec_layer = owner;
-  self->userid = 1;
-  self->client_mcs_data = client_mcs_data;
-  self->server_mcs_data = server_mcs_data;
-  self->iso_layer = rdp_iso_create(self);
-  return self;
+    struct rdp_mcs *self;
+
+    self = (struct rdp_mcs *)g_malloc(sizeof(struct rdp_mcs), 1);
+    self->sec_layer = owner;
+    self->userid = 1;
+    self->client_mcs_data = client_mcs_data;
+    self->server_mcs_data = server_mcs_data;
+    self->iso_layer = rdp_iso_create(self);
+    return self;
 }
 
 /*****************************************************************************/
 void APP_CC
-rdp_mcs_delete(struct rdp_mcs* self)
+rdp_mcs_delete(struct rdp_mcs *self)
 {
-  if (self == 0)
-  {
-    return;
-  }
-  rdp_iso_delete(self->iso_layer);
-  g_free(self);
+    if (self == 0)
+    {
+        return;
+    }
+
+    rdp_iso_delete(self->iso_layer);
+    g_free(self);
 }
 
 /*****************************************************************************/
 /* returns error */
 int APP_CC
-rdp_mcs_recv(struct rdp_mcs* self, struct stream* s, int* chan)
+rdp_mcs_recv(struct rdp_mcs *self, struct stream *s, int *chan)
 {
-  int appid;
-  int opcode;
-  int len;
-
-  DEBUG(("  in rdp_mcs_recv"));
-  if (rdp_iso_recv(self->iso_layer, s) != 0)
-  {
-    return 1;
-  }
-  in_uint8(s, opcode);
-  appid = opcode >> 2;
-  if (appid != MCS_SDIN)
-  {
-    DEBUG(("  out rdp_mcs_recv error"));
-    return 1;
-  }
-  in_uint8s(s, 2);
-  in_uint16_be(s, *chan);
-  in_uint8s(s, 1);
-  in_uint8(s, len);
-  if (len & 0x80)
-  {
+    int appid;
+    int opcode;
+    int len;
+
+    DEBUG(("  in rdp_mcs_recv"));
+
+    if (rdp_iso_recv(self->iso_layer, s) != 0)
+    {
+        return 1;
+    }
+
+    in_uint8(s, opcode);
+    appid = opcode >> 2;
+
+    if (appid != MCS_SDIN)
+    {
+        DEBUG(("  out rdp_mcs_recv error"));
+        return 1;
+    }
+
+    in_uint8s(s, 2);
+    in_uint16_be(s, *chan);
     in_uint8s(s, 1);
-  }
-  DEBUG(("  out rdp_mcs_recv"));
-  return 0;
+    in_uint8(s, len);
+
+    if (len & 0x80)
+    {
+        in_uint8s(s, 1);
+    }
+
+    DEBUG(("  out rdp_mcs_recv"));
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_ber_out_header(struct rdp_mcs* self, struct stream* s,
-                        int tag_val, int len)
+rdp_mcs_ber_out_header(struct rdp_mcs *self, struct stream *s,
+                       int tag_val, int len)
 {
-  if (tag_val > 0xff)
-  {
-    out_uint16_be(s, tag_val);
-  }
-  else
-  {
-    out_uint8(s, tag_val);
-  }
-  if (len >= 0x80)
-  {
-    out_uint8(s, 0x82);
-    out_uint16_be(s, len);
-  }
-  else
-  {
-    out_uint8(s, len);
-  }
-  return 0;
+    if (tag_val > 0xff)
+    {
+        out_uint16_be(s, tag_val);
+    }
+    else
+    {
+        out_uint8(s, tag_val);
+    }
+
+    if (len >= 0x80)
+    {
+        out_uint8(s, 0x82);
+        out_uint16_be(s, len);
+    }
+    else
+    {
+        out_uint8(s, len);
+    }
+
+    return 0;
 }
 
 #if 0
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_ber_out_int8(struct rdp_mcs* self, struct stream* s, int value)
+rdp_mcs_ber_out_int8(struct rdp_mcs *self, struct stream *s, int value)
 {
-  rdp_mcs_ber_out_header(self, s, BER_TAG_INTEGER, 1);
-  out_uint8(s, value);
-  return 0;
+    rdp_mcs_ber_out_header(self, s, BER_TAG_INTEGER, 1);
+    out_uint8(s, value);
+    return 0;
 }
 #endif
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_ber_out_int16(struct rdp_mcs* self, struct stream* s, int value)
+rdp_mcs_ber_out_int16(struct rdp_mcs *self, struct stream *s, int value)
 {
-  rdp_mcs_ber_out_header(self, s, BER_TAG_INTEGER, 2);
-  out_uint8(s, (value >> 8));
-  out_uint8(s, value);
-  return 0;
+    rdp_mcs_ber_out_header(self, s, BER_TAG_INTEGER, 2);
+    out_uint8(s, (value >> 8));
+    out_uint8(s, value);
+    return 0;
 }
 
 #if 0
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_ber_out_int24(struct rdp_mcs* self, struct stream* s, int value)
+rdp_mcs_ber_out_int24(struct rdp_mcs *self, struct stream *s, int value)
 {
-  rdp_mcs_ber_out_header(self, s, BER_TAG_INTEGER, 3);
-  out_uint8(s, (value >> 16));
-  out_uint8(s, (value >> 8));
-  out_uint8(s, value);
-  return 0;
+    rdp_mcs_ber_out_header(self, s, BER_TAG_INTEGER, 3);
+    out_uint8(s, (value >> 16));
+    out_uint8(s, (value >> 8));
+    out_uint8(s, value);
+    return 0;
 }
 #endif
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_out_domain_params(struct rdp_mcs* self, struct stream* s,
-                           int max_channels,
-                           int max_users, int max_tokens,
-                           int max_pdu_size)
+rdp_mcs_out_domain_params(struct rdp_mcs *self, struct stream *s,
+                          int max_channels,
+                          int max_users, int max_tokens,
+                          int max_pdu_size)
 {
-  rdp_mcs_ber_out_header(self, s, MCS_TAG_DOMAIN_PARAMS, 32);
-  rdp_mcs_ber_out_int16(self, s, max_channels);
-  rdp_mcs_ber_out_int16(self, s, max_users);
-  rdp_mcs_ber_out_int16(self, s, max_tokens);
-  rdp_mcs_ber_out_int16(self, s, 1);
-  rdp_mcs_ber_out_int16(self, s, 0);
-  rdp_mcs_ber_out_int16(self, s, 1);
-  rdp_mcs_ber_out_int16(self, s, max_pdu_size);
-  rdp_mcs_ber_out_int16(self, s, 2);
-  return 0;
+    rdp_mcs_ber_out_header(self, s, MCS_TAG_DOMAIN_PARAMS, 32);
+    rdp_mcs_ber_out_int16(self, s, max_channels);
+    rdp_mcs_ber_out_int16(self, s, max_users);
+    rdp_mcs_ber_out_int16(self, s, max_tokens);
+    rdp_mcs_ber_out_int16(self, s, 1);
+    rdp_mcs_ber_out_int16(self, s, 0);
+    rdp_mcs_ber_out_int16(self, s, 1);
+    rdp_mcs_ber_out_int16(self, s, max_pdu_size);
+    rdp_mcs_ber_out_int16(self, s, 2);
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_send_connection_initial(struct rdp_mcs* self)
+rdp_mcs_send_connection_initial(struct rdp_mcs *self)
 {
-  int data_len;
-  int len;
-  struct stream* s;
-
-  make_stream(s);
-  init_stream(s, 8192);
-  data_len = self->client_mcs_data->end - self->client_mcs_data->data;
-  len = 7 + 3 * 34 + 4 + data_len;
-  if (rdp_iso_init(self->iso_layer, s) != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  rdp_mcs_ber_out_header(self, s, MCS_CONNECT_INITIAL, len);
-  rdp_mcs_ber_out_header(self, s, BER_TAG_OCTET_STRING, 0); /* calling domain */
-  rdp_mcs_ber_out_header(self, s, BER_TAG_OCTET_STRING, 0); /* called domain */
-  rdp_mcs_ber_out_header(self, s, BER_TAG_BOOLEAN, 1);
-  out_uint8(s, 0xff); /* upward flag */
-  rdp_mcs_out_domain_params(self, s, 2, 2, 0, 0xffff); /* target params */
-  rdp_mcs_out_domain_params(self, s, 1, 1, 1, 0x420); /* min params */
-  rdp_mcs_out_domain_params(self, s, 0xffff, 0xfc17, 0xffff, 0xffff); /* max params */
-  rdp_mcs_ber_out_header(self, s, BER_TAG_OCTET_STRING, data_len);
-  out_uint8p(s, self->client_mcs_data->data, data_len);
-  s_mark_end(s);
-  if (rdp_iso_send(self->iso_layer, s) != 0)
-  {
+    int data_len;
+    int len;
+    struct stream *s;
+
+    make_stream(s);
+    init_stream(s, 8192);
+    data_len = self->client_mcs_data->end - self->client_mcs_data->data;
+    len = 7 + 3 * 34 + 4 + data_len;
+
+    if (rdp_iso_init(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    rdp_mcs_ber_out_header(self, s, MCS_CONNECT_INITIAL, len);
+    rdp_mcs_ber_out_header(self, s, BER_TAG_OCTET_STRING, 0); /* calling domain */
+    rdp_mcs_ber_out_header(self, s, BER_TAG_OCTET_STRING, 0); /* called domain */
+    rdp_mcs_ber_out_header(self, s, BER_TAG_BOOLEAN, 1);
+    out_uint8(s, 0xff); /* upward flag */
+    rdp_mcs_out_domain_params(self, s, 2, 2, 0, 0xffff); /* target params */
+    rdp_mcs_out_domain_params(self, s, 1, 1, 1, 0x420); /* min params */
+    rdp_mcs_out_domain_params(self, s, 0xffff, 0xfc17, 0xffff, 0xffff); /* max params */
+    rdp_mcs_ber_out_header(self, s, BER_TAG_OCTET_STRING, data_len);
+    out_uint8p(s, self->client_mcs_data->data, data_len);
+    s_mark_end(s);
+
+    if (rdp_iso_send(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
     free_stream(s);
-    return 1;
-  }
-  free_stream(s);
-  return 0;
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_ber_parse_header(struct rdp_mcs* self, struct stream* s,
-                         int tag_val, int* len)
+rdp_mcs_ber_parse_header(struct rdp_mcs *self, struct stream *s,
+                         int tag_val, int *len)
 {
-  int tag;
-  int l;
-  int i;
-
-  if (tag_val > 0xff)
-  {
-    in_uint16_be(s, tag);
-  }
-  else
-  {
-    in_uint8(s, tag);
-  }
-  if (tag != tag_val)
-  {
-    return 1;
-  }
-  in_uint8(s, l);
-  if (l & 0x80)
-  {
-    l = l & ~0x80;
-    *len = 0;
-    while (l > 0)
-    {
-      in_uint8(s, i);
-      *len = (*len << 8) | i;
-      l--;
-    }
-  }
-  else
-  {
-    *len = l;
-  }
-  if (s_check(s))
-  {
-    return 0;
-  }
-  else
-  {
-    return 1;
-  }
+    int tag;
+    int l;
+    int i;
+
+    if (tag_val > 0xff)
+    {
+        in_uint16_be(s, tag);
+    }
+    else
+    {
+        in_uint8(s, tag);
+    }
+
+    if (tag != tag_val)
+    {
+        return 1;
+    }
+
+    in_uint8(s, l);
+
+    if (l & 0x80)
+    {
+        l = l & ~0x80;
+        *len = 0;
+
+        while (l > 0)
+        {
+            in_uint8(s, i);
+            *len = (*len << 8) | i;
+            l--;
+        }
+    }
+    else
+    {
+        *len = l;
+    }
+
+    if (s_check(s))
+    {
+        return 0;
+    }
+    else
+    {
+        return 1;
+    }
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_parse_domain_params(struct rdp_mcs* self, struct stream* s)
+rdp_mcs_parse_domain_params(struct rdp_mcs *self, struct stream *s)
 {
-  int len;
-
-  if (rdp_mcs_ber_parse_header(self, s, MCS_TAG_DOMAIN_PARAMS, &len) != 0)
-  {
-    return 1;
-  }
-  in_uint8s(s, len);
-  if (s_check(s))
-  {
-    return 0;
-  }
-  else
-  {
-    return 1;
-  }
+    int len;
+
+    if (rdp_mcs_ber_parse_header(self, s, MCS_TAG_DOMAIN_PARAMS, &len) != 0)
+    {
+        return 1;
+    }
+
+    in_uint8s(s, len);
+
+    if (s_check(s))
+    {
+        return 0;
+    }
+    else
+    {
+        return 1;
+    }
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_recv_connection_response(struct rdp_mcs* self)
+rdp_mcs_recv_connection_response(struct rdp_mcs *self)
 {
-  int len;
-  int res;
-  struct stream* s;
-
-  make_stream(s);
-  init_stream(s, 8192);
-  if (rdp_iso_recv(self->iso_layer, s) != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  rdp_mcs_ber_parse_header(self, s, MCS_CONNECT_RESPONSE, &len);
-  rdp_mcs_ber_parse_header(self, s, BER_TAG_RESULT, &len);
-  in_uint8(s, res);
-  if (res != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  rdp_mcs_ber_parse_header(self, s, BER_TAG_INTEGER, &len);
-  in_uint8s(s, len); /* connect id */
-  rdp_mcs_parse_domain_params(self, s);
-  rdp_mcs_ber_parse_header(self, s, BER_TAG_OCTET_STRING, &len);
-  if (len > self->server_mcs_data->size)
-  {
-    len = self->server_mcs_data->size;
-  }
-  in_uint8a(s, self->server_mcs_data->data, len);
-  self->server_mcs_data->p = self->server_mcs_data->data;
-  self->server_mcs_data->end = self->server_mcs_data->data + len;
-  if (s_check_end(s))
-  {
-    free_stream(s);
-    return 0;
-  }
-  else
-  {
-    free_stream(s);
-    return 1;
-  }
+    int len;
+    int res;
+    struct stream *s;
+
+    make_stream(s);
+    init_stream(s, 8192);
+
+    if (rdp_iso_recv(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    rdp_mcs_ber_parse_header(self, s, MCS_CONNECT_RESPONSE, &len);
+    rdp_mcs_ber_parse_header(self, s, BER_TAG_RESULT, &len);
+    in_uint8(s, res);
+
+    if (res != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    rdp_mcs_ber_parse_header(self, s, BER_TAG_INTEGER, &len);
+    in_uint8s(s, len); /* connect id */
+    rdp_mcs_parse_domain_params(self, s);
+    rdp_mcs_ber_parse_header(self, s, BER_TAG_OCTET_STRING, &len);
+
+    if (len > self->server_mcs_data->size)
+    {
+        len = self->server_mcs_data->size;
+    }
+
+    in_uint8a(s, self->server_mcs_data->data, len);
+    self->server_mcs_data->p = self->server_mcs_data->data;
+    self->server_mcs_data->end = self->server_mcs_data->data + len;
+
+    if (s_check_end(s))
+    {
+        free_stream(s);
+        return 0;
+    }
+    else
+    {
+        free_stream(s);
+        return 1;
+    }
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_send_edrq(struct rdp_mcs* self)
+rdp_mcs_send_edrq(struct rdp_mcs *self)
 {
-  struct stream* s;
+    struct stream *s;
+
+    make_stream(s);
+    init_stream(s, 8192);
+
+    if (rdp_iso_init(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    out_uint8(s, (MCS_EDRQ << 2));
+    out_uint16_be(s, 0x100); /* height */
+    out_uint16_be(s, 0x100); /* interval */
+    s_mark_end(s);
+
+    if (rdp_iso_send(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
 
-  make_stream(s);
-  init_stream(s, 8192);
-  if (rdp_iso_init(self->iso_layer, s) != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  out_uint8(s, (MCS_EDRQ << 2));
-  out_uint16_be(s, 0x100); /* height */
-  out_uint16_be(s, 0x100); /* interval */
-  s_mark_end(s);
-  if (rdp_iso_send(self->iso_layer, s) != 0)
-  {
     free_stream(s);
-    return 1;
-  }
-  free_stream(s);
-  return 0;
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_send_aurq(struct rdp_mcs* self)
+rdp_mcs_send_aurq(struct rdp_mcs *self)
 {
-  struct stream* s;
+    struct stream *s;
+
+    make_stream(s);
+    init_stream(s, 8192);
+
+    if (rdp_iso_init(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    out_uint8(s, (MCS_AURQ << 2));
+    s_mark_end(s);
+
+    if (rdp_iso_send(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
 
-  make_stream(s);
-  init_stream(s, 8192);
-  if (rdp_iso_init(self->iso_layer, s) != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  out_uint8(s, (MCS_AURQ << 2));
-  s_mark_end(s);
-  if (rdp_iso_send(self->iso_layer, s) != 0)
-  {
     free_stream(s);
-    return 1;
-  }
-  free_stream(s);
-  return 0;
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_recv_aucf(struct rdp_mcs* self)
+rdp_mcs_recv_aucf(struct rdp_mcs *self)
 {
-  int opcode;
-  int res;
-  struct stream* s;
-
-  make_stream(s);
-  init_stream(s, 8192);
-  if (rdp_iso_recv(self->iso_layer, s) != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  in_uint8(s, opcode);
-  if ((opcode >> 2) != MCS_AUCF)
-  {
-    free_stream(s);
-    return 1;
-  }
-  in_uint8(s, res);
-  if (res != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  if (opcode & 2)
-  {
-    in_uint16_be(s, self->userid);
-  }
-  if (!(s_check_end(s)))
-  {
+    int opcode;
+    int res;
+    struct stream *s;
+
+    make_stream(s);
+    init_stream(s, 8192);
+
+    if (rdp_iso_recv(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    in_uint8(s, opcode);
+
+    if ((opcode >> 2) != MCS_AUCF)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    in_uint8(s, res);
+
+    if (res != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    if (opcode & 2)
+    {
+        in_uint16_be(s, self->userid);
+    }
+
+    if (!(s_check_end(s)))
+    {
+        free_stream(s);
+        return 1;
+    }
+
     free_stream(s);
-    return 1;
-  }
-  free_stream(s);
-  return 0;
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_send_cjrq(struct rdp_mcs* self, int chanid)
+rdp_mcs_send_cjrq(struct rdp_mcs *self, int chanid)
 {
-  struct stream* s;
+    struct stream *s;
+
+    make_stream(s);
+    init_stream(s, 8192);
+
+    if (rdp_iso_init(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    out_uint8(s, (MCS_CJRQ << 2));
+    out_uint16_be(s, self->userid);
+    out_uint16_be(s, chanid);
+    s_mark_end(s);
+
+    if (rdp_iso_send(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
 
-  make_stream(s);
-  init_stream(s, 8192);
-  if (rdp_iso_init(self->iso_layer, s) != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  out_uint8(s, (MCS_CJRQ << 2));
-  out_uint16_be(s, self->userid);
-  out_uint16_be(s, chanid);
-  s_mark_end(s);
-  if (rdp_iso_send(self->iso_layer, s) != 0)
-  {
     free_stream(s);
-    return 1;
-  }
-  free_stream(s);
-  return 0;
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 static int APP_CC
-rdp_mcs_recv_cjcf(struct rdp_mcs* self)
+rdp_mcs_recv_cjcf(struct rdp_mcs *self)
 {
-  int opcode;
-  int res;
-  struct stream* s;
-
-  make_stream(s);
-  init_stream(s, 8192);
-  if (rdp_iso_recv(self->iso_layer, s) != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  in_uint8(s, opcode);
-  if ((opcode >> 2) != MCS_CJCF)
-  {
-    free_stream(s);
-    return 1;
-  }
-  in_uint8(s, res);
-  if (res != 0)
-  {
-    free_stream(s);
-    return 1;
-  }
-  in_uint8s(s, 4); /* mcs_userid, req_chanid */
-  if (opcode & 2)
-  {
-    in_uint8s(s, 2); /* join_chanid */
-  }
-  if (!(s_check_end(s)))
-  {
+    int opcode;
+    int res;
+    struct stream *s;
+
+    make_stream(s);
+    init_stream(s, 8192);
+
+    if (rdp_iso_recv(self->iso_layer, s) != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    in_uint8(s, opcode);
+
+    if ((opcode >> 2) != MCS_CJCF)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    in_uint8(s, res);
+
+    if (res != 0)
+    {
+        free_stream(s);
+        return 1;
+    }
+
+    in_uint8s(s, 4); /* mcs_userid, req_chanid */
+
+    if (opcode & 2)
+    {
+        in_uint8s(s, 2); /* join_chanid */
+    }
+
+    if (!(s_check_end(s)))
+    {
+        free_stream(s);
+        return 1;
+    }
+
     free_stream(s);
-    return 1;
-  }
-  free_stream(s);
-  return 0;
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 int APP_CC
-rdp_mcs_connect(struct rdp_mcs* self, char* ip, char* port)
+rdp_mcs_connect(struct rdp_mcs *self, char *ip, char *port)
 {
-  DEBUG(("  in rdp_mcs_connect"));
-  if (rdp_iso_connect(self->iso_layer, ip, port) != 0)
-  {
-    DEBUG(("  out rdp_mcs_connect error rdp_iso_connect failed"));
-    return 1;
-  }
-  rdp_mcs_send_connection_initial(self);
-  if (rdp_mcs_recv_connection_response(self) != 0)
-  {
-    rdp_iso_disconnect(self->iso_layer);
-    DEBUG(("  out rdp_mcs_connect error rdp_mcs_recv_connection_response \
+    DEBUG(("  in rdp_mcs_connect"));
+
+    if (rdp_iso_connect(self->iso_layer, ip, port) != 0)
+    {
+        DEBUG(("  out rdp_mcs_connect error rdp_iso_connect failed"));
+        return 1;
+    }
+
+    rdp_mcs_send_connection_initial(self);
+
+    if (rdp_mcs_recv_connection_response(self) != 0)
+    {
+        rdp_iso_disconnect(self->iso_layer);
+        DEBUG(("  out rdp_mcs_connect error rdp_mcs_recv_connection_response \
 failed"));
-    return 1;
-  }
-  rdp_mcs_send_edrq(self);
-  rdp_mcs_send_aurq(self);
-  if (rdp_mcs_recv_aucf(self) != 0)
-  {
-    rdp_iso_disconnect(self->iso_layer);
-    DEBUG(("  out rdp_mcs_connect error rdp_mcs_recv_aucf failed"));
-    return 1;
-  }
-  rdp_mcs_send_cjrq(self, self->userid + 1001);
-  if (rdp_mcs_recv_cjcf(self) != 0)
-  {
-    rdp_iso_disconnect(self->iso_layer);
-    DEBUG(("  out rdp_mcs_connect error rdp_mcs_recv_cjcf 1 failed"));
-    return 1;
-  }
-  rdp_mcs_send_cjrq(self, MCS_GLOBAL_CHANNEL);
-  if (rdp_mcs_recv_cjcf(self) != 0)
-  {
-    rdp_iso_disconnect(self->iso_layer);
-    DEBUG(("  out rdp_mcs_connect error rdp_mcs_recv_cjcf 2 failed"));
-    return 1;
-  }
-  DEBUG(("  out rdp_mcs_connect"));
-  return 0;
+        return 1;
+    }
+
+    rdp_mcs_send_edrq(self);
+    rdp_mcs_send_aurq(self);
+
+    if (rdp_mcs_recv_aucf(self) != 0)
+    {
+        rdp_iso_disconnect(self->iso_layer);
+        DEBUG(("  out rdp_mcs_connect error rdp_mcs_recv_aucf failed"));
+        return 1;
+    }
+
+    rdp_mcs_send_cjrq(self, self->userid + 1001);
+
+    if (rdp_mcs_recv_cjcf(self) != 0)
+    {
+        rdp_iso_disconnect(self->iso_layer);
+        DEBUG(("  out rdp_mcs_connect error rdp_mcs_recv_cjcf 1 failed"));
+        return 1;
+    }
+
+    rdp_mcs_send_cjrq(self, MCS_GLOBAL_CHANNEL);
+
+    if (rdp_mcs_recv_cjcf(self) != 0)
+    {
+        rdp_iso_disconnect(self->iso_layer);
+        DEBUG(("  out rdp_mcs_connect error rdp_mcs_recv_cjcf 2 failed"));
+        return 1;
+    }
+
+    DEBUG(("  out rdp_mcs_connect"));
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 int APP_CC
-rdp_mcs_init(struct rdp_mcs* self, struct stream* s)
+rdp_mcs_init(struct rdp_mcs *self, struct stream *s)
 {
-  rdp_iso_init(self->iso_layer, s);
-  s_push_layer(s, mcs_hdr, 8);
-  return 0;
+    rdp_iso_init(self->iso_layer, s);
+    s_push_layer(s, mcs_hdr, 8);
+    return 0;
 }
 
 /*****************************************************************************/
 /* returns error */
 int APP_CC
-rdp_mcs_send(struct rdp_mcs* self, struct stream* s)
+rdp_mcs_send(struct rdp_mcs *self, struct stream *s)
 {
-  int len;
-
-  s_pop_layer(s, mcs_hdr);
-  len = (s->end - s->p) - 8;
-  len = len | 0x8000;
-  out_uint8(s, MCS_SDRQ << 2);
-  out_uint16_be(s, self->userid);
-  out_uint16_be(s, MCS_GLOBAL_CHANNEL);
-  out_uint8(s, 0x70);
-  out_uint16_be(s, len);
-  if (rdp_iso_send(self->iso_layer, s) != 0)
-  {
-    return 1;
-  }
-  return 0;
+    int len;
+
+    s_pop_layer(s, mcs_hdr);
+    len = (s->end - s->p) - 8;
+    len = len | 0x8000;
+    out_uint8(s, MCS_SDRQ << 2);
+    out_uint16_be(s, self->userid);
+    out_uint16_be(s, MCS_GLOBAL_CHANNEL);
+    out_uint8(s, 0x70);
+    out_uint16_be(s, len);
+
+    if (rdp_iso_send(self->iso_layer, s) != 0)
+    {
+        return 1;
+    }
+
+    return 0;
 }