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/* $OpenBSD: pk_debug.c,v 1.2 1996/03/04 07:36:39 niklas Exp $ */
/* $NetBSD: pk_debug.c,v 1.6 1996/02/13 22:05:14 christos Exp $ */
/*
* Copyright (c) University of British Columbia, 1984
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Laboratory for Computation Vision and the Computer Science Department
* of the University of British Columbia.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)pk_debug.c 8.1 (Berkeley) 6/10/93
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/protosw.h>
#include <sys/socketvar.h>
#include <sys/errno.h>
#include <net/if.h>
#include <netccitt/x25.h>
#include <netccitt/pk.h>
#include <netccitt/pk_var.h>
#include <netccitt/pk_extern.h>
char *pk_state[] = {
"Listen", "Ready", "Received-Call",
"Sent-Call", "Data-Transfer","Received-Clear",
"Sent-Clear",
};
char *pk_name[] = {
"Call", "Call-Conf", "Clear",
"Clear-Conf", "Data", "Intr", "Intr-Conf",
"Rr", "Rnr", "Reset", "Reset-Conf",
"Restart", "Restart-Conf", "Reject", "Diagnostic",
"Invalid"
};
void
pk_trace (xcp, m, dir)
struct x25config *xcp;
register struct mbuf *m;
char *dir;
{
register char *s;
struct x25_packet *xp = mtod(m, struct x25_packet *);
register int i, len = 0, cnt = 0;
if (xcp -> xc_ptrace == 0)
return;
i = pk_decode (xp) / MAXSTATES;
for (; m; m = m -> m_next) {
len = len + m -> m_len;
++cnt;
}
printf ("LCN=%d %s: %s #=%d, len=%d ",
LCN(xp), dir, pk_name[i], cnt, len);
for (s = (char *) xp, i = 0; i < 5; ++i, ++s)
printf ("%x ", (int) * s & 0xff);
printf ("\n");
}
void
mbuf_cache(c, m)
register struct mbuf_cache *c;
struct mbuf *m;
{
register struct mbuf **mp;
if (c->mbc_size != c->mbc_oldsize) {
unsigned zero_size, copy_size;
unsigned new_size = c->mbc_size * sizeof(m);
caddr_t cache = (caddr_t)c->mbc_cache;
if (new_size) {
c->mbc_cache = (struct mbuf **)
malloc(new_size, M_MBUF, M_NOWAIT);
if (c->mbc_cache == 0) {
c->mbc_cache = (struct mbuf **)cache;
return;
}
c->mbc_num %= c->mbc_size;
} else
c->mbc_cache = 0;
if (c->mbc_size < c->mbc_oldsize) {
register struct mbuf **mplim;
mp = c->mbc_size + (struct mbuf **)cache;
mplim = c->mbc_oldsize + (struct mbuf **)cache;
while (mp < mplim)
m_freem(*mp++);
zero_size = 0;
} else
zero_size = (c->mbc_size - c->mbc_oldsize) * sizeof(m);
copy_size = new_size - zero_size;
c->mbc_oldsize = c->mbc_size;
if (copy_size)
bcopy(cache, (caddr_t)c->mbc_cache, copy_size);
if (cache)
free(cache, M_MBUF);
if (zero_size)
bzero(copy_size + (caddr_t)c->mbc_cache, zero_size);
}
if (c->mbc_size == 0)
return;
mp = c->mbc_cache + c->mbc_num;
c->mbc_num = (1 + c->mbc_num) % c->mbc_size;
if (*mp)
m_freem(*mp);
if ((*mp = m_copym(m, 0, M_COPYALL, M_DONTWAIT)) != NULL)
(*mp)->m_flags |= m->m_flags & 0x08;
}
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