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-rw-r--r--sys/netinet/ip_log.c483
1 files changed, 0 insertions, 483 deletions
diff --git a/sys/netinet/ip_log.c b/sys/netinet/ip_log.c
deleted file mode 100644
index 3f73a3e..0000000
--- a/sys/netinet/ip_log.c
+++ /dev/null
@@ -1,483 +0,0 @@
-/*
- * Copyright (C) 1997 by Darren Reed.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that this notice is preserved and due credit is given
- * to the original author and the contributors.
- *
- * $FreeBSD$
- */
-#include "opt_ipfilter.h"
-
-#ifdef IPFILTER_LOG
-# ifndef SOLARIS
-# define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
-# endif
-
-# if defined(KERNEL) && !defined(_KERNEL)
-# define _KERNEL
-# endif
-# ifdef __FreeBSD__
-# if defined(_KERNEL) && !defined(IPFILTER_LKM)
-# define __FreeBSD_version 300000 /* this will do as a hack */
-# else
-# include <osreldate.h>
-# endif
-# endif
-# ifndef _KERNEL
-# include <stdio.h>
-# include <string.h>
-# include <stdlib.h>
-# include <ctype.h>
-# endif
-# include <sys/errno.h>
-# include <sys/types.h>
-# include <sys/param.h>
-# include <sys/file.h>
-# if __FreeBSD_version >= 220000 && defined(_KERNEL)
-# include <sys/fcntl.h>
-# include <sys/filio.h>
-# else
-# include <sys/ioctl.h>
-# endif
-# include <sys/time.h>
-# if defined(_KERNEL) && !defined(linux)
-# include <sys/systm.h>
-# endif
-# include <sys/uio.h>
-# if !SOLARIS
-# if (NetBSD > 199609) || (OpenBSD > 199603) || defined(__FreeBSD__)
-# include <sys/dirent.h>
-# else
-# include <sys/dir.h>
-# endif
-# ifndef linux
-# include <sys/mbuf.h>
-# endif
-# else
-# include <sys/filio.h>
-# include <sys/cred.h>
-# include <sys/ddi.h>
-# include <sys/sunddi.h>
-# include <sys/ksynch.h>
-# include <sys/kmem.h>
-# include <sys/mkdev.h>
-# include <sys/dditypes.h>
-# include <sys/cmn_err.h>
-# endif
-# ifndef linux
-# include <sys/protosw.h>
-# endif
-# include <sys/socket.h>
-
-# include <net/if.h>
-# ifdef sun
-# include <net/af.h>
-# endif
-# if __FreeBSD_version >= 300000
-# include <sys/malloc.h>
-# include <machine/random.h>
-# endif
-# include <net/route.h>
-# include <netinet/in.h>
-# ifdef __sgi
-# include <sys/ddi.h>
-# ifdef IFF_DRVRLOCK /* IRIX6 */
-# include <sys/hashing.h>
-# endif
-# endif
-# if !defined(linux) && !(defined(__sgi) && !defined(IFF_DRVRLOCK)) /*IRIX<6*/
-# include <netinet/in_var.h>
-# endif
-# include <netinet/in_systm.h>
-# include <netinet/ip.h>
-# include <netinet/tcp.h>
-# include <netinet/udp.h>
-# include <netinet/ip_icmp.h>
-# ifndef linux
-# include <netinet/ip_var.h>
-# endif
-# ifndef _KERNEL
-# include <syslog.h>
-# endif
-# include "netinet/ip_compat.h"
-# include <netinet/tcpip.h>
-# include "netinet/ip_fil.h"
-# include "netinet/ip_proxy.h"
-# include "netinet/ip_nat.h"
-# include "netinet/ip_frag.h"
-# include "netinet/ip_state.h"
-# include "netinet/ip_auth.h"
-# ifndef MIN
-# define MIN(a,b) (((a)<(b))?(a):(b))
-# endif
-
-
-# if SOLARIS || defined(__sgi)
-extern kmutex_t ipl_mutex;
-# if SOLARIS
-extern kcondvar_t iplwait;
-# endif
-# endif
-
-iplog_t **iplh[IPL_LOGMAX+1], *iplt[IPL_LOGMAX+1];
-int iplused[IPL_LOGMAX+1];
-static u_long iplcrc[IPL_LOGMAX+1];
-static u_long iplcrcinit;
-#ifdef linux
-static struct wait_queue *iplwait[IPL_LOGMAX+1];
-#endif
-
-
-/*
- * Initialise log buffers & pointers. Also iniialised the CRC to a local
- * secret for use in calculating the "last log checksum".
- */
-void ipflog_init()
-{
- int i;
-
- for (i = IPL_LOGMAX; i >= 0; i--) {
- iplt[i] = NULL;
- iplh[i] = &iplt[i];
- iplused[i] = 0;
- }
-# if defined(__FreeBSD__) && __FreeBSD_version >= 300000
- read_random(&iplcrcinit, sizeof iplcrcinit);
-# else
- {
- struct timeval tv;
-
-#if BSD >= 199306 || defined(__FreeBSD__) || defined(__sgi)
- microtime(&tv);
-# else
- uniqtime(&tv);
-# endif
- iplcrcinit = tv.tv_sec ^ (tv.tv_usec << 8) ^ tv.tv_usec;
- }
-# endif
-}
-
-
-/*
- * ipflog
- * Create a log record for a packet given that it has been triggered by a
- * rule (or the default setting). Calculate the transport protocol header
- * size using predetermined size of a couple of popular protocols and thus
- * how much data to copy into the log, including part of the data body if
- * requested.
- */
-int ipflog(flags, ip, fin, m)
-u_int flags;
-ip_t *ip;
-fr_info_t *fin;
-mb_t *m;
-{
- ipflog_t ipfl;
- register int mlen, hlen;
- u_long crc;
- size_t sizes[2];
- void *ptrs[2];
- int types[2];
-# if SOLARIS
- ill_t *ifp = fin->fin_ifp;
-# else
- struct ifnet *ifp = fin->fin_ifp;
-# endif
-
- /*
- * calculate header size.
- */
- hlen = fin->fin_hlen;
- if (ip->ip_p == IPPROTO_TCP)
- hlen += MIN(sizeof(tcphdr_t), fin->fin_dlen);
- else if (ip->ip_p == IPPROTO_UDP)
- hlen += MIN(sizeof(udphdr_t), fin->fin_dlen);
- else if (ip->ip_p == IPPROTO_ICMP) {
- struct icmp *icmp = (struct icmp *)((char *)ip + hlen);
-
- /*
- * For ICMP, if the packet is an error packet, also include
- * the information about the packet which caused the error.
- */
- switch (icmp->icmp_type)
- {
- case ICMP_UNREACH :
- case ICMP_SOURCEQUENCH :
- case ICMP_REDIRECT :
- case ICMP_TIMXCEED :
- case ICMP_PARAMPROB :
- hlen += MIN(sizeof(struct icmp) + 8, fin->fin_dlen);
- break;
- default :
- hlen += MIN(sizeof(struct icmp), fin->fin_dlen);
- break;
- }
- }
- /*
- * Get the interface number and name to which this packet is
- * currently associated.
- */
-# if SOLARIS
- ipfl.fl_unit = (u_char)ifp->ill_ppa;
- bcopy(ifp->ill_name, ipfl.fl_ifname, MIN(ifp->ill_name_length, 4));
- mlen = (flags & FR_LOGBODY) ? MIN(msgdsize(m) - hlen, 128) : 0;
-# else
-# if (defined(NetBSD) && (NetBSD <= 1991011) && (NetBSD >= 199603)) || \
- (defined(OpenBSD) && (OpenBSD >= 199603))
- strncpy(ipfl.fl_ifname, ifp->if_xname, IFNAMSIZ);
-# else
-# ifndef linux
- ipfl.fl_unit = (u_char)ifp->if_unit;
-# endif
- if ((ipfl.fl_ifname[0] = ifp->if_name[0]))
- if ((ipfl.fl_ifname[1] = ifp->if_name[1]))
- if ((ipfl.fl_ifname[2] = ifp->if_name[2]))
- ipfl.fl_ifname[3] = ifp->if_name[3];
-# endif
- mlen = (flags & FR_LOGBODY) ? MIN(ip->ip_len - hlen, 128) : 0;
-# endif
- ipfl.fl_plen = (u_char)mlen;
- ipfl.fl_hlen = (u_char)hlen;
- ipfl.fl_rule = fin->fin_rule;
- ipfl.fl_group = fin->fin_group;
- ipfl.fl_flags = flags;
- ptrs[0] = (void *)&ipfl;
- sizes[0] = sizeof(ipfl);
- types[0] = 0;
-#if SOLARIS
- /*
- * Are we copied from the mblk or an aligned array ?
- */
- if (ip == (ip_t *)m->b_rptr) {
- ptrs[1] = m;
- sizes[1] = hlen + mlen;
- types[1] = 1;
- } else {
- ptrs[1] = ip;
- sizes[1] = hlen + mlen;
- types[1] = 0;
- }
-#else
- ptrs[1] = m;
- sizes[1] = hlen + mlen;
- types[1] = 1;
-#endif
- crc = (ipf_cksum((u_short *)fin, FI_CSIZE) << 8) + iplcrcinit;
- return ipllog(IPL_LOGIPF, crc, ptrs, sizes, types, 2);
-}
-
-
-/*
- * ipllog
- */
-int ipllog(dev, crc, items, itemsz, types, cnt)
-int dev;
-u_long crc;
-void **items;
-size_t *itemsz;
-int *types, cnt;
-{
- iplog_t *ipl;
- caddr_t buf, s;
- int len, i;
-
- /*
- * Check to see if this log record has a CRC which matches the last
- * record logged. If it does, just up the count on the previous one
- * rather than create a new one.
- */
- if (crc) {
- MUTEX_ENTER(&ipl_mutex);
- if ((iplcrc[dev] == crc) && *iplh[dev]) {
- (*iplh[dev])->ipl_count++;
- MUTEX_EXIT(&ipl_mutex);
- return 1;
- }
- iplcrc[dev] = crc;
- MUTEX_EXIT(&ipl_mutex);
- }
-
- /*
- * Get the total amount of data to be logged.
- */
- for (i = 0, len = sizeof(iplog_t); i < cnt; i++)
- len += itemsz[i];
-
- /*
- * check that we have space to record this information and can
- * allocate that much.
- */
- KMALLOC(buf, caddr_t, len);
- if (!buf)
- return 0;
- MUTEX_ENTER(&ipl_mutex);
- if ((iplused[dev] + len) > IPLLOGSIZE) {
- MUTEX_EXIT(&ipl_mutex);
- KFREES(buf, len);
- return 0;
- }
- iplused[dev] += len;
- MUTEX_EXIT(&ipl_mutex);
-
- /*
- * advance the log pointer to the next empty record and deduct the
- * amount of space we're going to use.
- */
- ipl = (iplog_t *)buf;
- ipl->ipl_magic = IPL_MAGIC;
- ipl->ipl_count = 1;
- ipl->ipl_next = NULL;
- ipl->ipl_dsize = len;
-# if SOLARIS || defined(sun) || defined(linux)
- uniqtime((struct timeval *)&ipl->ipl_sec);
-# else
-# if BSD >= 199306 || defined(__FreeBSD__) || defined(__sgi)
- microtime((struct timeval *)&ipl->ipl_sec);
-# endif
-# endif
-
- /*
- * Loop through all the items to be logged, copying each one to the
- * buffer. Use bcopy for normal data or the mb_t copyout routine.
- */
- for (i = 0, s = buf + sizeof(*ipl); i < cnt; i++) {
- if (types[i] == 0)
- bcopy(items[i], s, itemsz[i]);
- else if (types[i] == 1) {
-# if SOLARIS
- copyout_mblk(items[i], 0, itemsz[i], s);
-# else
- m_copydata(items[i], 0, itemsz[i], s);
-# endif
- }
- s += itemsz[i];
- }
- MUTEX_ENTER(&ipl_mutex);
- *iplh[dev] = ipl;
- iplh[dev] = &ipl->ipl_next;
-# if SOLARIS
- cv_signal(&iplwait);
- mutex_exit(&ipl_mutex);
-# else
- MUTEX_EXIT(&ipl_mutex);
-# ifdef linux
- wake_up_interruptible(&iplwait[dev]);
-# else
- wakeup(&iplh[dev]);
-# endif
-# endif
- return 1;
-}
-
-
-int ipflog_read(unit, uio)
-int unit;
-struct uio *uio;
-{
- iplog_t *ipl;
- int error = 0, dlen, copied;
-# if defined(_KERNEL) && !SOLARIS
- int s;
-# endif
-
- /*
- * Sanity checks. Make sure the minor # is valid and we're copying
- * a valid chunk of data.
- */
- if ((IPL_LOGMAX < unit) || (unit < 0))
- return ENXIO;
- if (!uio->uio_resid)
- return 0;
- if ((uio->uio_resid < sizeof(iplog_t)) ||
- (uio->uio_resid > IPLLOGSIZE))
- return EINVAL;
-
- /*
- * Lock the log so we can snapshot the variables. Wait for a signal
- * if the log is empty.
- */
- SPL_NET(s);
- MUTEX_ENTER(&ipl_mutex);
-
- while (!iplused[unit] || !iplt[unit]) {
-# if SOLARIS && defined(_KERNEL)
- if (!cv_wait_sig(&iplwait, &ipl_mutex)) {
- MUTEX_EXIT(&ipl_mutex);
- return EINTR;
- }
-# else
-# ifdef linux
- interruptible_sleep_on(&iplwait[unit]);
- if (current->signal & ~current->blocked)
- return -EINTR;
-# else
- MUTEX_EXIT(&ipl_mutex);
- SPL_X(s);
- error = SLEEP(&iplh[unit], "ipl sleep");
- if (error)
- return error;
- SPL_NET(s);
- MUTEX_ENTER(&ipl_mutex);
-# endif /* linux */
-# endif /* SOLARIS */
- }
-
-# if BSD >= 199306 || defined(__FreeBSD__)
- uio->uio_rw = UIO_READ;
-# endif
-
- for (copied = 0; (ipl = iplt[unit]); copied += dlen) {
- dlen = ipl->ipl_dsize;
- if (dlen + sizeof(iplog_t) > uio->uio_resid)
- break;
- /*
- * Don't hold the mutex over the uiomove call.
- */
- iplt[unit] = ipl->ipl_next;
- MUTEX_EXIT(&ipl_mutex);
- SPL_X(s);
- error = UIOMOVE((caddr_t)ipl, ipl->ipl_dsize, UIO_READ, uio);
- KFREES((caddr_t)ipl, ipl->ipl_dsize);
- if (error)
- break;
- SPL_NET(s);
- MUTEX_ENTER(&ipl_mutex);
- iplused[unit] -= dlen;
- }
- if (!ipl) {
- iplused[unit] = 0;
- iplh[unit] = &iplt[unit];
- }
-
- if (!error) {
- MUTEX_EXIT(&ipl_mutex);
- SPL_X(s);
- }
-#ifdef linux
- if (!error)
- return copied;
- return -error;
-#else
- return error;
-#endif
-}
-
-
-int ipflog_clear(unit)
-int unit;
-{
- iplog_t *ipl;
- int used;
-
- while ((ipl = iplt[unit])) {
- iplt[unit] = ipl->ipl_next;
- KFREES((caddr_t)ipl, ipl->ipl_dsize);
- }
- iplh[unit] = &iplt[unit];
- used = iplused[unit];
- iplused[unit] = 0;
- iplcrc[unit] = 0;
- return used;
-}
-#endif /* IPFILTER_LOG */
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