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/*-
* Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $Id: log.c,v 1.5 1998/03/13 01:50:42 brian Exp $
*/
#include <sys/param.h>
#include <netinet/in.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include "command.h"
#include "mbuf.h"
#include "log.h"
#include "loadalias.h"
#include "defs.h"
#include "vars.h"
static const char *LogNames[] = {
"Async",
"Carrier",
"CCP",
"Chat",
"Command",
"Connect",
"Debug",
"HDLC",
"ID0",
"IPCP",
"LCP",
"Link",
"LQM",
"Phase",
"TCP/IP",
"Tun",
"Warning",
"Error",
"Alert"
};
#define MSK(n) (1<<((n)-1))
static u_long LogMask = MSK(LogLINK) | MSK(LogCARRIER) | MSK(LogPHASE);
static u_long LogMaskLocal = MSK(LogERROR) | MSK(LogALERT) | MSK(LogWARN);
static int LogTunno = -1;
static int
syslogLevel(int lev)
{
switch (lev) {
case LogDEBUG:return LOG_DEBUG;
case LogWARN:
return LOG_WARNING;
case LogERROR:
return LOG_ERR;
case LogALERT:
return LOG_ALERT;
}
return lev >= LogMIN && lev <= LogMAX ? LOG_INFO : 0;
}
const char *
LogName(int id)
{
return id < LogMIN || id > LogMAX ? "Unknown" : LogNames[id - 1];
}
void
LogKeep(int id)
{
if (id >= LogMIN && id <= LogMAXCONF)
LogMask |= MSK(id);
}
void
LogKeepLocal(int id)
{
if (id >= LogMIN && id <= LogMAXCONF)
LogMaskLocal |= MSK(id);
}
void
LogDiscard(int id)
{
if (id >= LogMIN && id <= LogMAXCONF)
LogMask &= ~MSK(id);
}
void
LogDiscardLocal(int id)
{
if (id >= LogMIN && id <= LogMAXCONF)
LogMaskLocal &= ~MSK(id);
}
void
LogDiscardAll()
{
LogMask = 0;
}
void
LogDiscardAllLocal()
{
LogMaskLocal = 0;
}
int
LogIsKept(int id)
{
if (id < LogMIN || id > LogMAX)
return 0;
if (id > LogMAXCONF)
return LOG_KEPT_LOCAL | LOG_KEPT_SYSLOG;
return ((LogMaskLocal & MSK(id)) ? LOG_KEPT_LOCAL : 0) |
((LogMask & MSK(id)) ? LOG_KEPT_SYSLOG : 0);
}
void
LogOpen(const char *Name)
{
openlog(Name, LOG_PID, LOG_DAEMON);
}
void
LogSetTun(int tunno)
{
LogTunno = tunno;
}
void
LogClose()
{
closelog();
LogTunno = -1;
}
void
LogPrintf(int lev, const char *fmt,...)
{
va_list ap;
va_start(ap, fmt);
if (LogIsKept(lev)) {
static char nfmt[200];
if ((LogIsKept(lev) & LOG_KEPT_LOCAL) && VarTerm) {
if ((LogIsKept(LogTUN) & LOG_KEPT_LOCAL) && LogTunno != -1)
snprintf(nfmt, sizeof nfmt, "tun%d: %s: %s",
LogTunno, LogName(lev), fmt);
else
snprintf(nfmt, sizeof nfmt, "%s: %s", LogName(lev), fmt);
vfprintf(VarTerm, nfmt, ap);
fflush(VarTerm);
}
if ((LogIsKept(lev) & LOG_KEPT_SYSLOG) && (lev != LogWARN || !VarTerm)) {
if ((LogIsKept(LogTUN) & LOG_KEPT_SYSLOG) && LogTunno != -1)
snprintf(nfmt, sizeof nfmt, "tun%d: %s: %s",
LogTunno, LogName(lev), fmt);
else
snprintf(nfmt, sizeof nfmt, "%s: %s", LogName(lev), fmt);
vsyslog(syslogLevel(lev), nfmt, ap);
}
}
va_end(ap);
}
void
LogDumpBp(int lev, const char *hdr, const struct mbuf * bp)
{
if (LogIsKept(lev)) {
char buf[50];
char *b;
u_char *ptr;
int f;
if (hdr && *hdr)
LogPrintf(lev, "%s\n", hdr);
b = buf;
do {
f = bp->cnt;
ptr = MBUF_CTOP(bp);
while (f--) {
sprintf(b, " %02x", (int) *ptr++);
b += 3;
if (b == buf + sizeof buf - 2) {
strcpy(b, "\n");
LogPrintf(lev, buf);
b = buf;
}
}
} while ((bp = bp->next) != NULL);
if (b > buf) {
strcpy(b, "\n");
LogPrintf(lev, buf);
}
}
}
void
LogDumpBuff(int lev, const char *hdr, const u_char * ptr, int n)
{
if (LogIsKept(lev)) {
char buf[50];
char *b;
if (hdr && *hdr)
LogPrintf(lev, "%s\n", hdr);
while (n > 0) {
b = buf;
for (b = buf; b != buf + sizeof buf - 2 && n--; b += 3)
sprintf(b, " %02x", (int) *ptr++);
strcpy(b, "\n");
LogPrintf(lev, buf);
}
}
}
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