iso.c File Reference

#include "rdesktop.h"

Include dependency graph for iso.c:

Go to the source code of this file.

Functions
static BOOL	iso_send_msg (RDPCLIENT *This, uint8 code)
static BOOL	iso_send_connection_request (RDPCLIENT *This, char *cookie)
static STREAM	iso_recv_msg (RDPCLIENT *This, uint8 *code, uint8 *rdpver)
STREAM	iso_init (RDPCLIENT *This, int length)
BOOL	iso_send (RDPCLIENT *This, STREAM s)
STREAM	iso_recv (RDPCLIENT *This, uint8 *rdpver)
BOOL	iso_connect (RDPCLIENT *This, char *server, char *cookie)
BOOL	iso_reconnect (RDPCLIENT *This, char *server, char *cookie)
BOOL	iso_disconnect (RDPCLIENT *This)
void	iso_reset_state (RDPCLIENT *This)

Function Documentation

iso_connect()

BOOL iso_connect	(	RDPCLIENT *	This,
		char *	server,
		char *	cookie
	)

Definition at line 179 of file iso.c.

{
    uint8 code = 0;
 
    if (!tcp_connect(This, server))
        return False;
 
    if (!iso_send_connection_request(This, cookie))
        return False;
 
    if (iso_recv_msg(This, &code, NULL) == NULL)
        return False;
 
    if (code != ISO_PDU_CC)
    {
        error("expected CC, got 0x%x\n", code);
        tcp_disconnect(This);
        return False;
    }
 
    return True;
}

iso_disconnect()

BOOL iso_disconnect

(

RDPCLIENT *

This

)

Definition at line 229 of file iso.c.

{
    iso_send_msg(This, ISO_PDU_DR);
    return tcp_disconnect(This);
}

iso_init()

STREAM iso_init	(	RDPCLIENT *	This,
		int	length
	)

Definition at line 122 of file iso.c.

{
    STREAM s;
 
    s = tcp_init(This, length + 7);
 
    if(s == NULL)
        return NULL;
 
    s_push_layer(s, iso_hdr, 7);
 
    return s;
}

iso_reconnect()

BOOL iso_reconnect	(	RDPCLIENT *	This,
		char *	server,
		char *	cookie
	)

Definition at line 204 of file iso.c.

{
    uint8 code = 0;
 
    if (!tcp_connect(This, server))
        return False;
 
    if (!iso_send_connection_request(This, cookie)) // BUGBUG should we really pass the cookie here?
        return False;
 
    if (iso_recv_msg(This, &code, NULL) == NULL)
        return False;
 
    if (code != ISO_PDU_CC)
    {
        error("expected CC, got 0x%x\n", code);
        tcp_disconnect(This);
        return False;
    }
 
    return True;
}

Referenced by mcs_reconnect().

iso_recv()

STREAM iso_recv	(	RDPCLIENT *	This,
		uint8 *	rdpver
	)

Definition at line 158 of file iso.c.

{
    STREAM s;
    uint8 code = 0;
 
    s = iso_recv_msg(This, &code, rdpver);
    if (s == NULL)
        return NULL;
    if (rdpver != NULL)
        if (*rdpver != 3)
            return s;
    if (code != ISO_PDU_DT)
    {
        error("expected DT, got 0x%x\n", code);
        return NULL;
    }
    return s;
}

iso_recv_msg()

static STREAM iso_recv_msg ( RDPCLIENT *  This, uint8 *  code, uint8 *  rdpver  )

static

Definition at line 78 of file iso.c.

{
    STREAM s;
    uint16 length;
    uint8 version;
 
    s = tcp_recv(This, NULL, 4);
    if (s == NULL)
        return NULL;
    in_uint8(s, version);
    if (rdpver != NULL)
        *rdpver = version;
    if (version == 3)
    {
        in_uint8s(s, 1);    /* pad */
        in_uint16_be(s, length);
    }
    else
    {
        in_uint8(s, length);
        if (length & 0x80)
        {
            length &= ~0x80;
            next_be(s, length);
        }
    }
    s = tcp_recv(This, s, length - 4);
    if (s == NULL)
        return NULL;
    if (version != 3)
        return s;
    in_uint8s(s, 1);    /* hdrlen */
    in_uint8(s, *code);
    if (*code == ISO_PDU_DT)
    {
        in_uint8s(s, 1);    /* eot */
        return s;
    }
    in_uint8s(s, 5);    /* dst_ref, src_ref, class */
    return s;
}

iso_reset_state()

void iso_reset_state

(

RDPCLIENT *

This

)

Definition at line 237 of file iso.c.

{
    tcp_reset_state(This);
}

iso_send()

BOOL iso_send	(	RDPCLIENT *	This,
		STREAM	s
	)

Definition at line 138 of file iso.c.

{
    uint16 length;
 
    s_pop_layer(s, iso_hdr);
    length = (uint16)(s->end - s->p);
 
    out_uint8(s, 3);    /* version */
    out_uint8(s, 0);    /* reserved */
    out_uint16_be(s, length);
 
    out_uint8(s, 2);    /* hdrlen */
    out_uint8(s, ISO_PDU_DT);   /* code */
    out_uint8(s, 0x80); /* eot */
 
    return tcp_send(This, s);
}

iso_send_connection_request()

static BOOL iso_send_connection_request ( RDPCLIENT *  This, char *  cookie  )

static

Definition at line 49 of file iso.c.

{
    STREAM s;
    int cookielen = (int)strlen(cookie);
    int length = 11 + cookielen;
 
    s = tcp_init(This, length);
 
    if(s == NULL)
        return False;
 
    out_uint8(s, 3);    /* version */
    out_uint8(s, 0);    /* reserved */
    out_uint16_be(s, length);   /* length */
 
    out_uint8(s, length - 5);   /* hdrlen */
    out_uint8(s, ISO_PDU_CR);
    out_uint16(s, 0);   /* dst_ref */
    out_uint16(s, 0);   /* src_ref */
    out_uint8(s, 0);    /* class */
 
    out_uint8p(s, cookie, cookielen);
 
    s_mark_end(s);
    return tcp_send(This, s);
}

iso_send_msg()

static BOOL iso_send_msg ( RDPCLIENT *  This, uint8  code  )

static

Definition at line 25 of file iso.c.

{
    STREAM s;
 
    s = tcp_init(This, 11);
 
    if(s == NULL)
        return False;
 
    out_uint8(s, 3);    /* version */
    out_uint8(s, 0);    /* reserved */
    out_uint16_be(s, 11);   /* length */
 
    out_uint8(s, 6);    /* hdrlen */
    out_uint8(s, code);
    out_uint16(s, 0);   /* dst_ref */
    out_uint16(s, 0);   /* src_ref */
    out_uint8(s, 0);    /* class */
 
    s_mark_end(s);
    return tcp_send(This, s);
}