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/*
* routent.c
* Onion Router and related definitions.
*
* Matej Pfajfar <mp292@cam.ac.uk>
*/
/*
* Changes :
* $Log$
* Revision 1.1 2002/06/26 22:45:50 arma
* Initial revision
*
* Revision 1.6 2002/04/02 14:27:11 badbytes
* Final finishes.
*
* Revision 1.5 2002/03/12 23:38:54 mp292
* Being pedantic about some pointer conversions.
*
* Revision 1.4 2002/03/03 00:24:26 mp292
* Corrected paths to some #include files.
*
* Revision 1.3 2002/03/03 00:06:45 mp292
* Modifications to support re-transmission.
*
* Revision 1.2 2002/01/26 19:26:55 mp292
* Reviewed according to Secure-Programs-HOWTO.
*
* Revision 1.1 2002/01/10 08:28:33 badbytes
* routent and routentEX related routines
*
*/
#include "policies.h"
#include "routent.h"
routentEX_t *id_router(routentEX_t **routerarray, size_t rarray_len, uint32_t addr, uint16_t port)
{
routentEX_t *router;
int i;
if (!routerarray)
return NULL;
for(i=0;i<rarray_len;i++)
{
router = routerarray[i];
if ((router->addr == addr) && (router->port == port))
return router;
}
return NULL;
}
routentEX_t *id_routerbys(routentEX_t **routerarray, size_t rarray_len, int s)
{
routentEX_t *router;
int i;
if (!routerarray)
return NULL;
for(i=0;i<rarray_len;i++)
{
router = routerarray[i];
if (router->s == s)
return router;
}
return NULL;
}
conn_buf_t *new_conn_buf(uint16_t aci, int policy, conn_buf_t **conn_bufs, conn_buf_t **last_conn_buf)
{
conn_buf_t *conn_buf;
if ((!aci) || (!conn_bufs) || (!last_conn_buf)) /* invalid parameters */
return NULL;
conn_buf = (conn_buf_t *)malloc(sizeof(conn_buf_t));
if (!conn_buf)
return NULL;
memset((void *)conn_buf,0,sizeof(conn_buf_t));
conn_buf->win_size = DEFAULT_WINDOW_SIZE;
conn_buf->win_avail = DEFAULT_WINDOW_SIZE;
conn_buf->aci = aci;
conn_buf->policy = policy;
if (!*conn_bufs)
{
*conn_bufs = conn_buf;
}
else
{
(*last_conn_buf)->next=(void *)conn_buf;
conn_buf->prev = (void *)*last_conn_buf;
}
*last_conn_buf = conn_buf;
return conn_buf;
}
int remove_conn_buf(conn_buf_t *conn_buf, conn_buf_t **conn_bufs, conn_buf_t **last_conn_buf)
{
if ( (!conn_buf) || (!*conn_bufs) || (!*last_conn_buf) ) /* invalid parameters */
return -1;
if (conn_buf->next)
((conn_buf_t *)(conn_buf->next))->prev = conn_buf->prev;
if (conn_buf->prev)
((conn_buf_t *)(conn_buf->prev))->next = conn_buf->next;
if (conn_buf == *last_conn_buf)
*last_conn_buf = (conn_buf_t *)conn_buf->prev;
if (conn_buf == *conn_bufs)
*conn_bufs = (conn_buf_t *)conn_buf->next;
if (conn_buf->buf)
free((void *)conn_buf->buf);
free((void *)conn_buf);
return 0;
}
conn_buf_t *id_conn_buf(conn_buf_t *conn_bufs, uint16_t aci)
{
conn_buf_t *conn_buf;
if ( (!aci) || (!conn_bufs) )
return NULL;
conn_buf = conn_bufs;
while (conn_buf)
{
if (conn_buf->aci == aci)
return conn_buf;
conn_buf = conn_buf->next;
}
return NULL;
}
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