2 # NOTE: Quite a few patches and suggestions come from other sources, to whom
3 # I'm greatly indebted, even if no names are mentioned.
5 # Thanks to the Coombs Computing Unit at the ANU for their continued support
6 # in providing a very available location for the IP Filter home page and
9 # Thanks to Hewlett Packard for making it possible to port IP Filter to
12 # Thanks to Tel.Net Media for supplying me with equipment to ensure that
13 # IP Filter continues to work on Solaris/sparc64.
15 # Thanks to BSDI for providing object files for BSD/OS 3.1 and the means
16 # to further support development of IP Filter under BSDI.
18 # Thanks to Craig Bishop of connect.com.au and Sun Microsystems for the
19 # loan of a machine to work on a Solaris 2.x port of this software.
21 # Thanks also to all those who have contributed patches and other code,
22 # and especially those who have found the time to port IP Filter to new
25 3.4.25 13/03/2002 - Released
27 retain rule # in state information
29 log the direction of a packet so ipmon gets it right rather than incorrectly
30 deriving it from the rule flags
32 add #ifdef for IPFILTER_LOGSIZE (put options IPFILTER_LOGSIZE=16384 in BSD
33 kernel config files to increase that buffer size)
35 recognise return-* rules differently to block in ipftest
37 fix bug in ipmon output for solaris
39 add regression testing for skip rules, logging and using head/group
41 fix output of ipmon: was displaying large unsigned ints rather than -1
42 when no rules matched.
44 make logging code compile into ipftest and add -l command line option to
45 dump binary log file (read with ipmon -f) when it finishes.
47 protect rule # and group # from interference when checking accounting rules
49 add regression testing for log output (text) from ipmon.
51 document -b command line option for ipmon
53 fix double-quick in Solaris startup script
55 3.4.24 01/03/2002 - Released
57 fix how files are installed on SunOS5
59 fix some minor problems in SunOS5 ipfboot script
61 by default, compile all OpenBSD tools in 3.0 for IPv6
63 fix NULL-pointer dereference in NAT code
65 make a better attempt at replacing the appropriate binaries on BSD systems
67 always print IPv6 icmp-types as a number
69 impose some rules about what "skip" can be used with
71 fix parsing problems with "keep state" and "keep state-age"
73 Try to read as much data as is in the log device in ipmon
75 remove some redundant checks when searching for rdr/nat rules
77 fix bug in handling of ACCT with FTP proxy
79 increase array size for interface names, using LIFNAMSIZ
81 include H.323 proxy from QNX
83 3.4.23 16/01/2002 - Released
85 Include patches to install IPFilter into OpenBSD 3.0, both for just kernel
86 compiles and complete system builds.
88 Fix bug in automatic flushing of state table which would cause it to hang
89 in an infinite loop bug introduced in 3.4.20.
91 Modify the sample proxy (samples/proxy.c) so that it ads a NAT mapping for
92 the outgoing connection to make it look like it comes from the real source.
94 Only support ICMPv6 with IPv6.
96 Move ipnat.1 to ipnat.8
98 Enhance ipmon to print textual ICMP[v6] types and subtypes where possible.
100 Make it possible to do IPv6 regression testing with ipftest.
102 Use kvm library for kmem access, rather than trying to do it manually with
105 Fix diffs for ip_input.c on BSDOS so it doesn't crash with fastroute.
107 Remove Berkeley advertising licence clause. Reference:
108 ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
110 Add more regression tests: ICMPv6 neighbour discovery, ICMP time exceeded
111 and fragmentation required.
113 Fix ipfboot script on Solaris to deal with no nameservers or no route to
114 them in a clean manner.
116 Support per-rule set timeouts for non-TCP NAT and state
120 Add ICMPv6 stateful checking, including handling multicast destination
121 addresses for neighbour discovery.
123 Fix problems with internals of ICMP messages for MTU discovery and
124 unreachables not being correctly adjust on little endian boxes.
126 Add "in-via" and "out-via" to filtering rules grammar. It is now possible
127 to bind a rule to both incoming and outgoing interfaces, in both forward
128 and reverse directions (4 directions in total). allows for asymetric flows
131 Fix ipfstat and ipnat for working on crash dumps.
133 Don't let USE_INET6 stay defined for SunOS4
135 Count things we see for each interface on solaris.
137 Include <netinet/icmp6.h> when compiling with USE_INET6 defined and
138 also include a whole bunch of #define's to make sure the symbols expected
141 Fix up fastroute on BSD systems.
143 Make fastrouting work for IPv6 just a bit better. doesn't split up big
144 packets into fragments like the IPv4 one does. You can now do a
145 "to <if>:<ipv6_addr>"
147 Remove some of the differences between user-space and kernel-space code
148 that is internal to ipfilter.
150 Call ipfr_slowtimer() after each packet is processed in ipftest to artificially
151 create the illusion of passing time and include the expire functions in the
152 code compiled for user-space.
154 Fix issues with the IPSec proxy not working or leading to a system crash.
156 Junk all processing of SPIs and special handling for ESP.
158 Add "no-match" as a filter rule action (resets _LAST_ match)
160 Add hack to workaround problems with Cassini interface cards on
163 Add some protocols to etc/protocols
165 3.4.22 03/12/2001 - Released
167 various openbsd changes
169 sorting based on IP numbers for ipfstat top output
171 fix various IPv6 code & compile problems
173 modify ip_fil.c to be more netbsd friendly
175 fix fastroute bug where it modified a packet post-sending
177 fix get_unit() - don't understand why it was broken.
179 add FI_IGNOREPKT and don't count so marked packets when doing stats or
182 extend the interface name saved to log output
184 make proxies capable of extending the matching done on a packet with a
185 particular nat session
187 change interfaces inside NAT & state code to accomodate redesign to allow
190 fix bug when free'ing loaded rules that results in a memory leak
191 (only an issue with "ipf -rf -", not flush)
193 make ipftest capable of loading > 1 file or rules, making it now possible
194 to load both NAT & filter rules
196 fix hex input for ipftest to allow interface name & direction to work
198 show ipsec proxy details in ipnat output
200 if OPT_HEX is set in opts, print a packet out as hex
202 don't modify b_next or preseve it or preserve b_prev for solaris
204 fix up kinstall scripts to install all the files everywhere they need to
206 fix overflowing of bits in ip_off inside iptest
208 make userauth and proxy in samples directory compile
210 fix minimum size when doing a pullup for ESP & ICMPv6
212 3.4.21 24/10/2001 - Released
216 make state work for non-tcp/udp/icmp in a very simple way
218 include diffs for ipv6 firewall on openbsd-2.9
220 add compatibility filter wrapper for NetBSD-current
222 fix command line option problems with ipfs
224 if we fill the state table and a automated flush doesn't purge any
225 expiring entries, remove all entries idle for more than half a day
227 fix bug with sending resets/icmp errors where the pointer to the data
228 section of the packet was not being set (BSD only)
230 split out validating ftp commands and responses into different halves,
231 one for each of server & client.
233 do not compile in STATETOP support for specific architectures
235 fix INSTALL.FreeBSD to no longer provide directions and properly direct
236 people to the right file for the right version of FreeBSD.
238 3.4.20 24/07/2001 - Released
240 adjust NAT hashing to give a better spread across the table
242 show icmp code/type names in output, where known
244 fix bug in altering cached interface names in state when resync'ing
246 fix bug in real audio proxy that caused crashs
248 fix compiling using sunos4 cc
250 patch from casper to address weird exit problem for ipstat in top mode
252 patch from Greg Woods to produce names for icmp types/unreach codes,
255 fix bug where ipfr_fastroute() would use a mblk and it would also get
258 don't match fragments which would cause 64k length to be exceeded
260 ftp proxy fix for port numbers being setup for pasv ftp with state/nat
262 change hashing for NAT to include both IP#'s and ports.
264 Solaris fixes for IPv6
266 fix compiling iplang bits, under Solaris, for ipsend
268 3.4.19 29/06/2001 - Released
270 fix to support suspend/resume on solaris8 as well as ipv6
272 include group/group-head in match of filter rules
274 fix endian problem reading snoop files
276 make all licence comments point to the one place
278 fix ftp proxy to only advance state if a reply is received in response to
281 3.4.18 05/06/2001 - Released
283 fix up parsing of "from ! host" where '!' is separate
285 disable hardware checksums for NetBSD
287 put ipftest temporary files in . rather than /tmp
289 modify ftp proxy to be more intelligent about moving between states
290 and recognise new authentication commands
292 allow state/nat table sizes to be externally influenced
294 print out host mapping table for NAT with ipnat -l
296 fix handling of hardware checksum'ing on Solaris
298 fixup makefiles for Solaris
300 update regression tests
302 fix surrender of SPL's for failure cases
304 include patches for OpenBSD's new timeout mechanism
306 default ipl_unreach to ICMP_UNREACH_FILTER_PROHIB if defined, else make it
309 fix up handling of packets matching auth rules and interaction with state
311 add -q command line option to ipfstat on Solaris to list bound interfaces
313 add command line option to ipfstat/ipnat to select different core image
315 don't use ncurses on Solaris for STATETOP
317 fix includes to get FreeBSD version
319 do not byte swap ip_id
321 fix handling success for packets matching the auth rule
323 don't double-count short packets
325 add ICMP router discovery message size recognition
327 fix packet length calculation for IPv6
329 set CPUDIR when for install-sunos5 make target
331 SUNWspro -xF causes Solaris 2.5.1 kernel to crash
333 3.4.17 06/04/2001 - Released
335 fix fragment#0 handling bug where they could get in via cache information
336 created by state table entries
338 use ire_walk to look for ire cache entries with link layer headers cached
340 deal with bad SPL assumptions for log reading on BSD
342 fix ftp proxy to allow logins with passwords
344 some auth rule patches, fixing byte endian problems and returning as an error
346 support LOG_SECURITY, where available, in ipmon
348 don't return an error for packets which match auth rules
350 introduce fr_icmpacktimeout to timeout entries once an ICMP reply has
351 been seen separately to when created
353 3.4.16 15/01/2001 - Released
355 fix race condition in flushing of state entries that are timing out
359 log all NAT entries created, not just those via rules
361 3.4.15 17/12/2000 - Released
363 add minimum ttl filtering (to be replaced later by return-icmp-as-dest
364 for all ICMP packets matching state entries).
366 fix NAT'ing of fragments
368 fix sanity checks for ICMPV6
370 fix up compiling on IRIX 6.2 with IDF/IDL installed
372 3.4.14 02/11/2000 - Released
374 cause flushing NAT table to generate log records the same as state flush
377 fix ftp proxy port/pasv
379 fix problem where nat_{in,out}lookup() would release a write lock when it
382 add check for ipf6.conf in Solaris ipfboot
384 3.4.13 28/10/2000 - Released
386 fix introduced bug with ICMP packets being rejected when valid
388 fix bug with proxy's that don't set fin_dlen correctly when calling
391 3.4.12 26/10/2000 - Released
393 fix installing into FreeBSD-4.1
395 fix FTP proxy bug where it'd hang and make NAT slightly more efficient
397 fix general compiling errors/warnings on various platforms
399 don't access ICMP data fields that aren't there
401 3.4.11 09/10/2000 - Released
403 return NULL for IPv6 access control lists if it is disabled rather than
406 fix for getting protocol & packet length for IPv6 packets for pullup.
408 update plog script from version 0.8 to version 0.10
410 patch from Frank Volf adding fix_datacksum() to NAT code, enhancing the
411 capabilities for "fixing" checksums.
413 3.4.10 03/09/2000 - Released
415 merge patch from Frank Volf for ICMP nat handling of TCP/UDP data `errors'
417 getline() adjusts linenum now
419 add tcphalfclosed timeout
421 fill in icmp_nextmtu field if it is defined on the platform
423 RST generation fix from guido
425 force 32bit compile for gcc on solaris if it can't generate 64bit code
427 encase logging when fr_chksrc == 2 in #ifdef IPFILTER_LOG
429 fix up line wrap problems in plog script
431 fix ICMP packet handling to not drop valid ICMP errors
433 freebsd 5.0 compat changes
435 3.4.9 08/08/2000 - Released
437 implement new aging mechanism in fr_tcp_age()
439 fix icmp state checking bug
441 revamp buildsunos script and build both sparcv7/sparcv9 for Solaris
442 if on an Ultra with a 64bit system & compiler (Caseper Dik)
444 open ipfilter device read only if we know we can
446 print out better information for ICMP packets in ipmon
448 move checking for source spoofed packets to a point where we can generate
451 return EFAULT from ircopyptr/iwcopyptr
453 don't do ioctl(SIOCGETFS) for auth stats
455 fix up freeing mbufs for post-4.3BSD
457 fix returning of inc from ftp proxy
459 fix bugs with ipfs -R/-W (Caseper Dik)
461 3.4.8 19/07/2000 - Released
463 create fake opt_inet6.h for FreeBSD-4 compile as LKM
465 add #ifdef's for KLD_MODULE sanity
467 NAT fastroute'd packets which come out of return-*
469 fix upper/lower case crap in ftp proxy and get seq# checking fixed up.
471 3.4.7 08/07/2000 - Released
473 make "ipf -y" lookup NAT if's which are unknown
475 prepend line numbers to ioctl error messages in ipf/ipnat
477 don't apply patches to FreeBSD twice
479 allow for ip_len to be on an unaligned boundary early on in fr_precheck
481 fix printing of icmp code when it is 0
483 correct printing of port numbers in map rules with from/to
485 don't allow fr_func to be called at securelevel > 0 or rules to be added
486 if securelevel > 0 if they have a non-zero fr_func.
488 3.4.6 11/06/2000 - Released
490 add extra regression tests for new nat functionality
492 place restrictions on using '!' in map/rdr rules
494 fix up solaris compile problems
496 3.4.5 10/06/2000 - Released
498 mention -sl in ipfstat.8
500 fix/support '!' in from/to rules (rdr) for NAT
502 add from/to support to rdr NAT rules
504 don't send ICMP errors in response to ICMP errors
506 fix sunos5 compilation for "ipfstat-top" and cleanup ipfboot
508 input accounting list used for both outbound and inbound packets
510 3.4.4 23/05/2000 - Released
512 don't add TCP state if it is an RST packet and (attempt) to send out
513 RST/ICMP packets in a manner that bypasses IP Filter.
515 add patch to work with 4.0_STABLE delayed checksums
517 3.4.3 20/05/2000 - Released
521 don't truncate IPv6 packets on Solaris
523 fix keep state for ICMP ECHO
525 add some NAT stats and use def_nat_age rather than DEF_NAT_AGE
527 don't make ftp proxy drop packets
529 use MCLISREFERENCED() in tandem with M_EXT to check if IP fields need to be
532 fix up RST generation for non-Solaris
534 get "short" flag right for IPv6
536 3.4.2 - 10/5/2000 - Released
538 Fix bug in dealing with "hlen == 1 and opt > 1" - Itojun
540 ignore previous NAT mappings for 0/0 and 0/32 rules
542 bring in a completely new ftp proxy
544 allow NAT to cause packets to be dropped.
546 add NetBSD callout support for 1.4-current
548 3.4.1 - 30/4/2000 - Released
550 add ratoui() and fix parsing of group numbers to allow 0 - UINT_MAX
552 don't include opt_inet6.h for FreeBSD if KLD_MODULE is defined
554 Solaris must use copyin() for all types of ioctl() args
556 fix up screen/tty when leaving "top mode" of ipfstat
558 linked list for maptable not setup correctly in nat_hostmap()
560 check for maptable rather than nat_table[1] to see if malloc for maptable
561 succeeded in nat_init
563 fix handling of map NAT rules with "from/to" host specs
565 fix printout out of source address when using "from/to" with map rules
567 convert ip_len back to network byte order, not plen, for solaris as ip_len
568 may have been changed by NAT and plen won't reflect this
570 3.4 - 27/4/2000 - Released
572 source address spoofing can be turned on (fr_chksrc) without using
575 group numbers are now 32bits in size, up from 16bits
577 IPv6 filtering available
579 add frank volf's state-top patches
581 add load splitting and round-robin attribute to redirect rules
583 FreeBSD-4.0 support (including KLD)
585 add top-style operation mode for ipfstat (-t)
587 add save/restore of IP Filter state/NAT information (ipfs)
589 further ftp proxy security checks
591 support for adding and removing proxies at runtime
593 3.3.13 26/04/2000 - Released
595 Fix parsing of "range" with "portmap"
597 Relax checking of ftp replies, slightly.
599 Fix NAT timeouts for ICMP packets
601 SunOS4 patches for ICMP redirects from Jurgen Keil (jk@tools.de)
603 3.3.12 16/03/2000 - Released
605 tighten up ftp proxy behaviour. sigh. yuck. hate.
607 fix bug in range check for NAT where the last IP# was not used.
609 fix problem with icmp codes > 127 in filter rules caused bad things to
610 happen and in particular, where #18 caused the rule to be printed
613 fix bug with the spl level not being reset when returning EIO from
614 iplioctl due to ipfilter not being initialized yet.
616 3.3.11 04/03/2000 - Released
618 make "or-block" work with lines that start with "log"
620 fix up parsing and printing of rules with syslog levels in them
622 fix from Cy Schubert for calling of apr_fini only if non-null
625 3.3.10 24/02/2000 - Released
627 * fix back from guido for state tracking interfaces
629 * update for NetBSD pfil interface changes
631 * if attaching fails and we can abort, then cleanup when doing so.
634 * solaris.c (fr_precheck): After calling freemsg on mt, set it point to *mp.
635 * ipf.c (packetlogon): use flag to store the return value from get_flags.
636 * ipmon.c (init_tabs): General cleanup so we do not have to cast
637 an int s->s_port to u_int port and try to check if the u_int port
640 3.3.9 15/02/2000 - Released
642 fix scheduling of bad locking in fr_addstate() used when we attach onto
645 fix up ip_statesync() with storing interface names in ipstate_t
647 fix fr_running for LKM's - Eugene Polovnikov
649 junk using pullupmsg() for solaris - it's next to useless for what we
650 need to do here anyway - and implement what we require.
652 don't call fr_delstate() in fr_checkstate(), when compiled for a user
653 program, early but when we're finished with it (got fr & pass)
655 ipnat(5) fix from Guido
657 on solaris2, copy message and use that with filter if there is another
658 copy if it being used (db_ref > 1). bad for performance, but better
659 than causing a crash.
661 patch for solaris8-fcs compile from Casper Dik
663 3.3.8 01/02/2000 - Released
665 fix state handling of SYN packets.
667 add parsing recognition of extra icmp types/codes and fix handling of
668 icmp time stamps and mask requests - Frank volf
670 3.3.7 25/01/2000 - Released
672 sync on state information as well as NAT information when required
674 record nat protocol in all nat log records
676 don't reuse the IP# from an active NAT session if the IP# in the rule
677 has changed dynamically.
679 lookup the protocol for NAT log information in ipmon and pass that to
682 fix the bug with changing the outbound interface of a packet where it
683 would lead to a panic.
685 use fr_running instead of ipl_inited. (sysctl name change on freebsd)
687 return EIO if someone attempts an ioctl on state/nat if ipfilter is not
690 fix rule insertion bug
692 make state flushing clean anything that's not fully established (4/4)
694 call fr_state_flush() after we've released ipf_state so we don't generate
695 a recursive mutex acquisition panic
697 fix parsing of icmp code after return-icmp/return-icmp-as-dest and add
698 some patches to enhance parsing strength
700 3.3.6 28/12/1999 - Released
702 add in missing rwlock release in fr_checkicmpmatchingstate() and fix check
703 for ICMP_ECHO to only be for packet, not state entry which we don't have yet.
705 handle SIOCIPFFB in nat_ioctl() and fr_state_ioctl()
707 fix size of friostat for SunOS4
709 fix bug in running off the end of a buffer in real audio proxy
711 3.3.5 11/12/1999 - Released
713 fix parsing of "log level" and printing it back out too
715 <net/if_types.h> is only present on Solaris2.6/7/8
717 use send_icmp_err rather than icmp_error to send back a frag-needed error
720 do not use -b with add_drv on Solaris unless $BASEDIR is set.
722 fix problem where source address in icmp replies is reversed
724 fix yet another problem with real audio.
726 3.3.4 4/12/1999 - Released
728 fix up the real audio proxy to properly setup state information and NAT
729 entries, thanks to Laine Stump for testing/advice/fixes.
731 fix ipfr_fastroute to set dst->sin_addr (Sean Farley - appears to prevent
732 FreeBSD 3.3 from panic'ing) as this had been removed in prior hacks to this
735 fix kinstall for BSDI
737 support ICMP errors being allowed through for ICMP packets going out with
740 support hardware checksumming (gigabit ethernet cards) on Solaris thanks to
741 Tel.Net Media for providing hardware for testing.
743 patched from Frank Volf for ipmon (ICMP & fragmented packets) and allowing
744 ICMP responses to ICMP packets in the keep state table.
746 add in patches for hardware checksumming under solaris
748 Solaris install scripts now use $BASEDIR as appropriate.
752 fix "ipf -y" on solaris so that it rescans rules also for changes in
755 let ipmon become a daemon with -D if it is using syslog
757 fix parsing of return-icmp-as-dest(foo)
759 add reference to ipfstat -g to ipfstat.8
761 ipf_mutex needs to be declared for irix in ip_fil.c
763 3.3.3 22/10/1999 - Released
765 add -g command line option to ipfstat to show groups still define.
767 fix problem with fragment table not recording rule pointer when called
768 from state functions (fin_fr not set).
770 fixup fastroute problems with keep state rules.
772 load rules into inactive set first, so we don't disable things like NIS
773 lookups half way through processing - found by Kevin Littlejohn
775 fix handling of unaligned ip pointer for solaris
777 patch for fr_newauth from Rudi Sluijtman
779 fixed htons() bug in fr_tcpsum() where ip_p wasn't cast to u_short
781 3.3.2 23/09/1999 - Released
783 patches from Scott Presnell to fix rcmd proxy
785 patches from Greg to fix Solaris detachment of interfaces
787 add openbsd compatibility fixes
789 fix free'ing already freed memory in ipfr_slowtimer()
791 fix for deferencing invalid memory in cleaning up after a device disappears
793 3.3.1 14/8/1999 - Released
795 remove include file sys/user.h for irix
797 prevent people from running buildsunos directly
799 fix up some problems with the saving of rule pointers so that NAT saves
800 that information in case it should need to call fr_addstate() from a proxy.
802 fix up scanning for the end of FTP messages
804 don't remove /etc/opt/ipf in postremove
806 attempt to prevent people running buildsolaris script without doing a
809 fix timeout losing on freebsd3
811 3.3 7/8/1999 - Released
813 NAT: information (rules, mappings) are stored in hash tables; setup some
814 basic NAT regression testing.
816 display version name of installed kernel code when initializing.
818 add -V command line option to ipf, showing version (program and kernel
819 module) as well as the run-status of the kernel code.
821 fix problem with "log" rules actually affecting result of filtering.
823 automatically use SUNWspro if available and on a 64bit Solaris system for
826 add kernel proxies for rcmd(3) and RealAudio (PNA)
828 use timeout/untimeout on SunOS4/BSD platforms too rather than hijacking
831 fix IP headers generated through parsing of text information
833 fix NAT rules to be in the correct order again.
835 make keep-state work with to/fastroute keywords and enforce usage of those
838 update keep-state code with new algorithm from Guido
840 add FreeBSD-3 support
842 add return-icmp-as-dest option to retrun an ICMP packet using the original
843 destination as the source rather than a local IP address
845 add "level [facility.]<priority>" option to filter language
847 add changes from Guido to state code.
849 add code to return EPERM if the device is opened for writing and we're
850 in securelevel 2 or greater.
852 authentication code patches from Guido
856 fix ipmon rule printing of interfaces and add IN/OUT to the end of ipmon
859 fix bimap rules with hash tables
861 update addresses used in NAT mappings for 0/32 rules for any protocol but TCP
862 if it changes on the interface - check every ip_natexpire()
864 add redirect regression test
866 count buckets used in the state hash table.
868 fix sending of RST's with return-rst to use the ack number provided in
869 the packet being replied to in addition to the sequence number.
871 fix to compile as a 64bit application on solaris7-64bit
873 add NAT IP mapping to ranges of IP addresses that aren't CIDR specified
875 fix calculation of in_space parameter for NAT
877 fix `wrapping' when incrementing the next ip address for use in NAT
879 fix free'ing of kernel memory in ip_natunload on solaris
881 fix -l/-U command line options from interfering with each other
883 fix fastroute under solaris2 and cleanup compilation for solaris7
885 add install scripts and compile cleanly on BSD/OS 4.0
887 safely open files in /tmp for writing device output when testing.
889 fix uninitialized pointer bug in NAT
891 fix SIOCZRLST (zero list rule stats) bug with groups
893 change some usage of u_short to u_int in function calling
895 fix compilation for Solaris7 (SUNWspro)
897 change solaris makefiles to build for either sparc or i386 rather than
898 per-cpu (sun4u, etc).
902 add patches from George Michaelson for FreeBSD 3.0
904 add patch from Guido to provide ICMP checking for known state in the same
905 manner as is done for NAT.
907 enable FTP PASV proxying and enable wildcarding in NAT/state code for ports
908 for better PORT/PASV support with FTP.
910 bring into main tree static nat features: map-block and "auto" portmapping.
912 add in source host filtering for redirects (alan jones)
914 3.2.10 22/11/98 - Released
916 3.2.10beta9 17/11/98 - Released
918 fix fr_tcpsum problems in handling mbufs with an odd number of bytes
919 and/or split across an mbuf boundary
921 fix NAT list entry comparisons and allow multiple entries for the same
922 proxy (but on different ports).
924 don't create duplicate NAT entries for repeated PORT commands.
926 3.2.10beta8 14/11/98 - Released
928 always exit an rwlock before expecting to enter it again on solaris
930 fix loop in nat_new for pre-existing nat
932 don't setup state for an ftp connection if creating nat fails.
934 3.2.10beta7 05/11/98 - Released
936 set fake window in ipft_tx.c to ensure code passes tests.
938 cleaned up/enhanced ipnat -l/ipnat -lv output
940 fixed NAT handling of non-TCP/UDP packets, esp. for ICMP errors returned.
942 Solaris recusive mutex on icmp-error/tcp-reset - requires rwlock's rather
945 3.2.10beta6 03/11/98 - Released
947 fix mixed use of krwlock_t and kmutex_t on Solaris2
949 fix FTP proxy back up, splitting pasv code out of port code.
951 3.2.10beta5 02/11/98 - Released
953 fixed port translation in ICMP reply handling
955 3.2.10beta4 01/11/98 - Released
957 increase useful statistic collection on solaris
959 filter DL_UNITDATA_REQ as well as DL_UNITDATA_IND on solaris
961 disable PASV reply translation for now
963 fail with an error if we try to load a NAT rule with a non-existant
966 fix portmap usage with 0/0 and 0/32 map rules
968 remove ap_unload/ap_expire - automatically done when NAT is cleaned up
970 print "STATE:CLOSED" from ipmon if the connection progresses past established
971 rather than "STATE:EXPIRED"
973 3.2.10beta3 26/10/98 - Released
975 fixed traceroute/nat problem
977 rewrote nat/proxy interface
979 ipnat now lists associated proxy sessions for each NAT where applicable
981 3.2.10beta2 13/10/98 - Released
983 use KRWLOCK_T in place of krwlock_t for solaris as well as irix
985 disable use of read-write lock acquisition by default
987 add in mb_t for linux, non-kernel
989 some changes to progress compilation on linux with glibc
991 change PASV as well as PORT when passed through kernel ftp proxy.
993 don't allow window to become 0 in tcp state code
995 make ipmon compile cleaner
999 3.2.10beta 11/09/98 - Released
1001 stop fr_tcpsum() thinking it has run out of data when it hasn't.
1003 stop solaris panics due to fin_dp being something wild.
1005 revisit usage of ATOMIC_*()
1007 log closing state of TCP connection in "keep state"
1009 fix fake-arp table code for ipsend.
1011 ipmon now writes pid to a file.
1013 fix "ipmon -a" to actually activate all logging devices.
1015 add patches for BSDOS4.
1017 perl scripts for log analysis donated.
1019 3.2.9 22/06/98 - Released
1021 fix byte order for ICMP packets generated on Solaris
1023 fix some locking problems.
1025 fix malloc bug in NAT (introduced in 3.2.8).
1027 patch from guido for state connections that get fragmented
1029 3.2.8 08/06/98 - Released
1031 use readers/writers locks in Solaris2 in place of some mutexes.
1033 Solaris2 installation enhancements - Martin Forssen (maf@carlstedt.se)
1035 3.2.7 24/05/98 - Released
1037 u_long -> u_32_t conversions
1039 patches from Bernd Ernesti for NetBSD
1041 fixup ipmon to actually handle HUP's.
1043 Linux fixes from Michael H. Warfield (mhw@wittsend.com)
1045 update for keep state patch (not security related) - Guido
1047 dumphex() uses stdout rather than log
1049 3.2.6 18/05/98 - Released
1051 fix potential security loop hole in keep state code.
1055 3.2.5 09/05/98 - Released
1057 BSD/OS 3.1 .o files added for the kernel.
1059 fix sequence # skew vs window size check.
1061 fix minimum ICMP header size check.
1063 remove references to Cybersource.
1065 fix my email address.
1067 remove ntohl in ipnat - Thomas Tornblom
1069 3.2.4 09/04/98 - Released
1071 add script to make devices for /dev on BSD boxes
1073 fixup building into the kernel for FreeBSD 2.2.5
1075 add -D command line option to ipmon to make it a daemon and SIGHUP causes
1076 it to close and reopen the logfile
1078 fixup make clean and make package for SunOS5 - Marc Boucher
1080 postinstall keeps adding "minor=ipf ipl" - George Ross <gdmr@dcs.ed.ac.uk>
1082 protected by IP Filter gif - Sergey Solyanik <solik@atom.ru>
1084 3.2.3 10/11/97 - Released
1086 fix some iplang bugs
1088 fix tcp checksum data overrun, sgi #define changes,
1089 avoid infinite loop when nat'ing to single IP# - Marc Boucher
1091 fixup DEVFS usage for FreeBSD
1093 fix sunos5 "make clean" cleaning up too much
1095 3.2.2 28/11/97 - Released
1097 change packet matching to return actual error, if bad packet, to facilitate
1100 allow ip:netmask in grammar too now - Guido
1102 assume IRIX has u_int32_t in sys/types.h (needed for R10000)
1104 rewrite parts of command line options for ipmon
1106 fix TCP urgent packet & offset testing and add LAND attack test for iptest
1108 fix grammar error in yacc grammar for iplang
1110 redirect (rdr) destination port bytes-wapped when it shouldn't be.
1112 general: fr_check now returns error code, such as EHOSTUNREACH or
1113 ECONNRESET (attempt to make ECONNRESET work for locally outbound
1116 linux: enable return-rst, need to filter tcp retransmits which are sent
1117 separately from normal packets
1119 memory leak plugged in ip_proxy.c
1121 BSDI compatibility patches from Guido
1123 tcp checksum fix - Marc Boucher
1125 recursive mutex and ioctl param fix - Marc Boucher
1127 3.2.1 12/11/97 - Released
1131 port to Linux 2.0.31
1133 patches to make "map a/m -> 0/0" work with ftp proxying properly - Marc Boucher
1135 add "ipf -F s" and "ipf -F S" to flush state table entries.
1137 announce if logging is on or off when ip filter initializes.
1139 "ipf -F a" doesn't flush groups properly for Solaris.
1141 3.2 30/10/97 - Released
1143 ipnat doesn't successfully remove proxy mappings with "-rf" -
1146 use K&R C function style for solaris kernel code
1148 use m_adj() to decrease packet size in ftp proxy
1150 use mbufchainlen rather than msgdsize,
1151 IRIX update - Marc Boucher
1153 fix NetBSD modunload bug (pfil_add_hook done twice)
1155 patches for OpenBSD 2.1 - Craig Bevins <craigb@bitcom.net.au>
1157 3.2beta10 24/10/97 - Released
1159 fix fragment table entries allocated for NAT.
1161 fix tcp checksum calculations over mbuf/mblk boundaries
1163 fix panic for blen < 0 in ftp kernel proxy - marc boucher
1165 fix flushing of rules which have been grouped.
1167 3.2beta9 20/10/97 - Released
1169 some nit picking on solaris2 with SUNWspro - Michael Lyle <mrl@rpnet.net>
1171 ftp kernel proxy patches from Marc Boucher
1173 3.2beta8 13/10/97 - Released
1175 add support for passing ICMP errors back through NAT.
1177 IRIX port update - Marc Boucher
1179 calculate correct MIN size of packet to log for UDP - Marc Boucher
1181 need htons(ETHERTYPE_x) on little endian BSD boxes - Dave Huang
1183 copyright header fixups
1185 3.2beta7 23/09/97 - Released
1187 fickup problems introduced by prior merges & changes.
1189 3.2beta6 23/09/97 - Released
1191 patch for spin-reading race condition - Marc Boucher.
1193 IRIX port by Marc Boucher.
1195 compatibility updates for Linux to ipsend
1197 3.2beta5 13/09/97 - Released
1199 patches from Bernd Ernesti for NetBSD integration (mostly prototyping and
1200 compiler warning things)
1202 ipf -y will resync IP#'s allocated with 0/32 in NAT to match interface if it
1205 update manual pages and other documentation updates.
1207 3.2beta4 27/8/97 - Released
1209 enable setting IP and TCP options for iplang/
1211 Solaris2 patches from Marc Boucher.
1213 add groups for filter rules.
1215 3.2beta3 21/8/97 - Released
1217 patches for Solaris2 (interface panic solution ?): fix FIONREAD and
1218 replacing q_qinfo points - Marc Boucher <marc@CAM.ORG>
1220 change ipsend/* and ipsd/* copyright notices to be the same as ip filter's
1222 patch for SYN-ACK skew testing fix from Eric V. Smith <EricSmith@windsor.com>
1224 3.2beta2 6/8/97 - Released
1226 make it load on Solaris 2.3
1228 rewrote logging to remove solaris errors, introduced checking to see if the
1229 same packet is logged successively.
1231 fix filter cache to work when there are no rules loaded.
1233 add "raw" option to ipresend to send entire ethernet frames.
1235 nat list corruption bug - NetBSD - Klaus Klein
1237 3.2beta1 5/7/97 - Released
1239 patches from Jason Thorpe fixing: UNSIGNED_CHAR lossage, off_t being 64bits
1240 lossage, and other NetBSD bits.
1244 fixup fwtk patches and add protocol field for SIOCGNATL.
1246 rdr bugs reported by Alexander Romanyu (alexr@aix.krid.crimea.ua), with
1248 * rdr matched all packets of a given protocol (ignored ports).
1249 * severe bug in nat_delete which caused system crash/freeze.
1251 change Makefile so that CC isn't passed on for FreeBSD/NetBSD (will use
1252 the default CC - cc, not gcc)
1254 3.2alpha9 16/6/97 - Released
1256 added "skip" keyword.
1258 implement preauthentication of packets, as outlined by Guido.
1260 Make it compile as cleanly as possible with -Wall & general code cleanup
1262 getopt returns int, not char. Bernd Ernesti
1264 3.2alpha8 13/6/97 - Released
1266 code added to support "auth" rules which require a user program to allow them
1267 through. First revision and much of the code came from Guido.
1269 hex output from ipmon doesn't goto syslog when recovering from out of sync
1270 error. Luke Mewburn (lukem@connect.com.au)
1272 fix solaris2.6 lookup of destination ire's.
1274 ipnat doesn't throw away unused bits (after masking), causing it to
1275 behave incorrectly. Carson Gaspar
1277 NAT code doesn't include inteface name when matching - Alexey Mavrin
1280 replace old SunOS tcpip.h with new tcpip.h (from 4.4BSD) - Jason Thorpe.
1282 update install procedures to include ip_proxy.c
1284 mask out unused bits in NAT/RDR rules.
1286 use a generic type (u_32_t) for 32bit variables, rather than rely on
1287 u_long being such - Jason Thorpe.
1289 create a local "netinet" directory and include from ~netinet/*" rather than
1290 just "*" to make keeping the code working on ports easier.
1292 add an m_copydata and m_copyback for SunOS4 (based on 4.4BSD-Lite versions)
1294 documentation updates.
1296 NetBSD update from Jason Thorpe <thorpej@netbsd.org>
1298 allow RST's through with a matching SEQ # and 0 ACK. Guido Van Rooij
1300 ipmon uses excessive amounts of CPU on Solaris2 - Reinhard Bertram
1301 <Reinhard.Bertram@KOM.th-darmstadt.de>
1303 3.2alpha7 25/5/97 - Released
1305 add strlen for pre-2.2 kernels - Doug Kite <dkite@websgi.icomnet.com>
1307 setup bits and pieces for compiling into a FreeBSD-2.2 kernel.
1309 split up "bsd" targets. Now a separate netbsd/freebsd/bsd target.
1310 mln_ipl.c has been split up into itself and mlf_ipl.c (for freebsd).
1312 fix (negative) host matching in filtering.
1314 add sysctl interface for some variables when compiled into FreeBSD-2.2 kernels
1317 make all the candidates for kernel compiling include "netinet/..." and build
1318 a subdirectory "netinet" when compiling and symlink all .h files into this.
1320 add install make target to Makefile.ipsend
1322 3.2alpha6 8/5/97 - Released
1324 Add "!" (not) to hostname/ip matching.
1326 Automatically add packet info to the fragment cache if it is a fragment
1327 and we're translating addreses for.
1329 Automatically add packet info to the fragment cache if it is a fragment
1330 and we're "keeping state" for the packet.
1332 Solaris2 patches - Anthony Baxter (arb@connect.com.au)
1334 change install procedure for FreeBSD 2.2 to allow building to a kernel
1335 which is different to the running kernel.
1337 add FIONREAD for Solaris2!
1339 when expiring NAT table entries, if we would set a time to fr_tcpclosed
1340 (which is 1), make it fr_tcplaskack(20) so that the state tables have a
1345 add proxying skeleton support and sample ftp transparent proxy code.
1347 add printfs at startup to tell user what is happening.
1349 add packets & bytes for EXPIRE NAT log records.
1351 fix the "install-bsd" target in the root Makefile. Chris Williams
1354 Fixes for FreeBSD 2.2 (and later revs) to prevent panics. Julian Assange.
1356 3.2alpha4 2/4/97 - Released
1358 Some compiler warnings cleaned up.
1360 FreeBSD-2.2 patches for LKM completed.
1362 3.2alpha3 31/3/97 - Released
1364 ipmon changes: -N for reading NAT logfile, -S for reading state logfile.
1365 -a for reading all. -n now toggles hostname resolution.
1367 Add logging of new state entries and expiration of old state entries.
1368 count log successes and failures.
1370 Add logging of new NAT entries and expiration of old NAT entries.
1371 count log successes and failures.
1373 Use u_quad_t for records of bytes & packets where kept
1374 (IP Accounting: fr_hits, fr_bytes; IP state: is_pkts, is_bytes).
1376 Fixup use of CPU and DCPU in Makefiles.
1378 Fix broken 0/32 NAT mapping. Carl Makin <cmakin@nla.gov.au>
1382 Implement mapping to 0/32 as being an alias for automatically using the
1383 interface's first IP address.
1385 Implement separate minor devices for both NAT and IP state code.
1387 Fully prototype all functions.
1389 Fix Makefile problem due to attempt to fix Sun compiling problems.
1391 3.1.10 23/3/97 - Released
1393 ipfstat -a requires a -i or -o command line option too. Print an error
1394 when not present rather than attempt to do something.
1396 patch updates for SunOS4 for kernel compiling.
1397 patch for ipmon -s (flush's syslog file which isn't good). Andrew J. Schorr
1398 <schorr@ead.dsa.com>
1400 too many people hit their heads hard when compiling code into the kernel
1401 that doesn't let any packets through. (fil.c - IPF_NOMATCH)
1403 icmp-type parsing doesn't return any errors when it isn't constructed
1404 correctly. Neil Readwin
1406 Using "-conf" with modload on SunOS4 doesn't work.
1407 Timothy Demarest <demarest@arraycomm.com>
1409 Need to define ARCH in makefile for SunOS4 building. "make sunos4"
1410 in INSTALL.SunOS is incorrect. James R Grinter <jrg@blodwen.demon.co.uk>
1411 [all SunOS targets now run buildsunos]
1413 NAT lookups are still incorrect, matching non-TCP/UDP with TCP/UDP
1414 information. ArkanoiD <ark@paranoid.convey.ru>
1416 Need to check for __FreeBSD_version being 199511 rather than 199607
1417 in mln_ipl.c. Eric Feillant <Eric.Feillant@EUnet.fr>
1419 3.1.9 8/3/97 - Released
1421 fixed incorrect lookup of active NAT entries.
1423 patch for ip_deq() wrong for pre 2.1.6 FreeBSD.
1424 fyeung@fyeung8.netific.com (Francis Yeung)
1426 check for out with return-rst/return-icmp at wrong place - Erkki Ritoniemi
1429 text_readip returns the interface pointer pointing to text on stack -
1432 fix from Pradeep Krishnan for printout rules "with not opt sec".
1434 3.1.8 18/2/97 - Released
1436 Diffs for ip_output.c and ip_input.c updated to fix bug with fastroute and
1437 compiling warnings about reuse of m0.
1439 prevent use of return-rst and return-icmp with rules blocking packets going
1440 out, preventing panics in certain situations.
1442 loop forms in frag cache table - Yury Pshenychny <yura@rd.zgik.zaporizhzhe.ua>
1444 should use SPLNET/SPLX around expire routines in NAT/frag/state code.
1446 redeclared malloc in 44arp.c -
1448 3.1.7 8/2/97 - Released
1450 Macros used for ntohs/htons supplied with gcc don't always work very well
1451 when the assignment is the same variable being converted.
1453 Filter matching doesn't not match rule which checks tcp flags on packets
1454 which are fragments - David Wilson
1456 3.1.7beta 30/1/97 - Released
1458 Fix up NAT bugs introduced in last major change (now tested), including
1459 nat_delete(), nat_lookupredir(), checksum changes, etc.
1461 3.1.7alpha 30/1/97 - Released
1463 Many changes to NAT code, including contributions from Laurent Joncheray
1466 Use "NO_SLEEP" when allocating memory under SunOS.
1468 Make kernel printf's nicer for BSD/SunOS4
1470 Always do a checksum for packets being filtered going out and being
1471 processed by fastroute.
1473 Leave kernel to play with cdevsw on *BSD systems with LKM's.
1475 ipnat.1 man page fixes.
1477 3.1.6 21/1/97 - Released
1479 Allow NAT to work on BSD systems in conjunction with "pass .. to ifname"
1481 Memory leak introduced in 3.1.3 in NAT lists, clearing of NAT table tried
1482 to free memory twice.
1484 NAT recalculates IP header checksum based on difference between IP#'s and
1485 port numbers - should be just IP#'s (Solaris2 only)
1487 3.1.5 13/1/97 - Released
1489 fixed setting of NAT timeouts and use different timeouts for concurrent
1490 TCP sessions using the same IP# mapping (when port mapping isn't used)
1492 multiple loading/unloading of LKM's doesn't clean up cdevsw properly for
1495 3.1.4 10/1/97 - Released
1497 add command line options -C and -F to ipnat to flush NAT list and table
1499 ipnat -l loops on output - Neil Readwin (nreadwin@nysales.micrognosis.com)
1501 NetBSD/FreeBSD kernel malloc changes - Daniel Carosone
1503 3.1.3 10/1/97 - Released
1505 NAT chains not constructed correctly in hash tables - Antony Y.R Lu
1506 (antony@hawk.ee.ncku.edu.tw)
1508 Updated INSTALL.NetBSD, INSTALL.FreeBSD and INSTALL.Sol2
1510 man page update (ipf.5) from Daniel Carosone (dan@geek.com.au)
1512 ICMP header checksum update now included in NAT.
1514 Solaris2 needs to modify IP header checksums in ip_natin and ip_natout.
1516 3.1.2 4/12/96 - Released
1518 ipmon doesn't use syslog all the time when given -s option
1520 fixed mclput panic in ip_input.c and replace ntohs() with NTOHS() macro
1522 check the results of hostname resolution in ipnat
1524 "make *install" fixed for subdirectories.
1526 problems with "ARCH:=" and gnu make resolved
1528 parser reports an error for lines with whitespaces only rather than skipping
1529 them. D.Carosone@abm.com.au (Daniel Carosone)
1531 patches for integration into NetBSD-current (post 1.2).
1533 add an option to allow non-IP packets going up/down the stream on Solaris2
1534 to be dropped. John Bass.
1536 3.1.2beta 21/11/96 - Released
1538 make ipsend compile on Linux 2.0.24
1540 changes to TCP kept state algorithm, making it watch state on TCP
1541 connections in both directions. Also use the same algorithm for NAT TCP.
1543 -Wall cleanup - Bernd Ernesti
1545 added "or-block" for "pass .. log or-block" after a suggestion from
1546 David Oppenheim (davido@optimation.com.au)
1548 added subdirectories for building IP Filter in SunOS5/BSD for different
1551 Solaris2 fixes to logging and pre-filtering packet processing - 3.1.1p2
1553 mbuf logging not using mtod(), remove iplbusy - 3.1.1p1 1/11/96
1555 3.1.1 28/10/96 - Released
1557 Installation script fixes and deinstall scripts for IP Filter on:
1558 SunOS4/FreeBSD/NetBSD
1560 Man page fixes - Paul Dubois (dubois@primate.wisc.edu)
1562 Fix use of SOLARIS macro in ipmon, rewrote ipllog() (again!)
1564 parsing isn't completely case insensitive - David Wilson
1565 (davidw@optimation.com.au)
1567 Release ipl_mutex across uiomove() calls
1569 print entire rule entries out for "ipf -z" when zero'ing per-rule stats.
1571 ipfstat returns same output for "hits" in "ipfstat -aio" - Terletsky Slavik
1572 (ts@polynet.lviv.ua)
1574 New algorithm for setting timeouts for TCP connection (more closely follow
1575 TCP FSM) - Pradeep Krishnan (pkrishna@netcom.com)
1577 Track both window sizes for TCP connections through "keep state".
1579 Solaris2 doesn't like _KERNEL defined in stdargs.h - Jos van Wezel
1582 3.1.1-beta2 6/10/96 - Released
1584 Solaris2 fastroute/dup-to/to now works
1586 ipmon `record' reading rewritten
1588 Added post-NetBSD1.2 packet filter patches - Mathew Green (mrg@eterna.com.au)
1590 Attempt to use in_proto.c.diff, not "..diffs" for SunOS4 - David Wilson
1591 (davidw@optimation.com.au)
1593 Michael Ryan (mike@NetworX.ie) reports the following:
1594 * The Trumpet WinSock under Windows always sends its SYN packet with an ACK
1595 value of 1, unlike any other implementation I've seen, which would set it
1596 to zero. The "keep state" feature of IP Filter doesn't work when receiving
1597 non-zero ACK values on new connection requests.
1598 * */Makefile install rule doesn't install all the binaries/man pages
1599 * Make ipnat use "tcp/udp" instead of "tcpudp"
1600 * Print out "tcp/udp" properly
1601 * ipnat "portmap tcp" matches "portmap udp" when adding/removing
1602 * NAT dest. ip# increased by one on mask of 0xffffffff when it shouldn't
1604 3.1.1-beta 1/9/96 - Released
1606 add better detection of TCP connections closing to TCP state monitoring.
1608 fr_addstate() not called correctly for fragments. "keep state" and
1609 "keep frag" code don't work together 100% - Songqing Cai
1610 (songqing_cai@sterling.com)
1612 call to fr_addstate() incorrect for adding state in combination with keeping
1613 fragment information - Songqing Cai (songqing_cai@sterling.com)
1615 KFREE() passed fp (incorrect) and not fr (correct) in ip_frag.c - John Hood
1616 (cgull@smoke.marlboro.vt.us)
1618 make ipf parser recognise '\\' as a `continued line' marker - Dima Ruban
1621 3.1.1-alpha 23/8/96 - Released
1623 kernel panic's when ICMP packets go through NAT code
1625 stats aren't zero'd properly with ipf -Z
1627 ipnat doesn't show port numbers correctly all the time and also add the
1628 protocol (tcp/udp/tcpudp) to rdr output - Carson Gaspar (carson@lehman.com)
1630 fast checksum fixing not 100% - backout patch - Bill Dorsey (dorsey@lila.com)
1632 NetBSD-1.2 patches from - VaX#n8 <vax@linkdead.paranoia.com>
1634 Usage() call error in fils.c - Ajay Shekhawat (ajay@cedar.buffalo.edu)
1636 ip_optcopy() staticly defined in ip_output.c in SunOS4 - Nick Hall
1637 (nrh@tardis.ed.ac.uk)
1639 3.1.0 7/7/96 - Released
1641 Reformatted ipnat output to be compatible with it's input, so that
1642 "ipnat -l | ipnat -rf -" is possible.
1644 3.1.0beta 30/6/96 - Released
1646 NetBSD-1.2 patches from Greg Woods (woods@most.weird.com)
1648 kernel module must not be installed stripped (Solaris2), as created by
1649 "make package" for Solaris2 - Peter Heimann
1650 (peter@i3.informatik.rwth-aachen.de)
1652 3.1.0alpha 5/6/96 - Released
1654 include examples in package for solaris2
1656 patches for removing an extra ip header checksum (FreeBSD/NetBSD/SunOS)
1658 removed trailing space from printouts of rules in ipf.
1660 ipresend supports the same range of inputs that ipftest does.
1662 sending a duplicate copy of a packet to another network devices is now
1663 supported. ("dup-to")
1665 sending a packet to an arbitary interface is now supported, irrespective
1666 of its actual route, with no ttl decrement. Can also be routed without
1667 the ttl being decremented. ("to" and "fastroute").
1669 "call" option added to support calling a generic function if a packet is
1672 show all (upto 4) recorded bytes from the interface name in logging from
1675 support for using unix file permissions for read/write access on the device
1678 recursive mutex in nat_new() for Solaris 2.x - Per L. Hagen <per@stibo.dk>
1680 ipftest doesn't call initparse() for THISHOST - Catherine Allen
1681 (cla@connect.com.au)
1683 Man page corrections from Rex Bona (rex@pengo.comsmiths.com.au)
1685 3.0.4 10/4/96 - Released
1687 looop in `parsing' IP packets with optlen 0 for ip options.
1689 rule number not initialized and resulted in unexpected results for state
1692 option parsing and printing bugs - Pradeep Krishnan
1694 3.0.4beta 25/3/96 - Released
1696 wouldn't parse "keep flags keep state" correctly.
1698 SunOS4.1.x ip_input.c doesn't recognise all 1s broadcast address - Nigel Verdon
1700 patches for BSDI's BSD/OS 2.1 and libpcap reader on little endian systems
1701 from Thorsten Lockert <tholo@tetherless.com>
1703 b* functions in fil.c on Solaris 2.4
1705 3.0.3 17/3/96 - Released
1707 added patches to support IP Filter initialisation when compiled into the
1710 added -x option to ipmon to display hex dumps of logged packets.
1712 added -H option to ipftest to allow ascii-hex formatted input to specify
1713 arbitary IP packets.
1715 Sending TCP RSTs as a response now work for Solaris2 x86
1717 add patches to make IP Filter compile into NetBSD kernels properly.
1719 patch to stop SunOS 4.1.x kernels panicing with "data traps".
1721 ipfboot script unloads and reloads ipf module on Solaris2 if it is already
1722 loaded into the kernel.
1724 Installation of IP Filter as a Solaris2 package is now supported.
1726 Man pages for ipnat.4, ipnat.5 added.
1728 added some more regression tests and fixed up IP Filter to pass the new tests
1729 (previous versions failed some of the tests in set 12).
1731 IP option filter processing has changed so that saying "with opt lsrr" will
1732 check only for that one, but not mask out other options, so a packet with
1733 strict source routing, along with loose source routing will match all of
1734 "with opt lsrr", "with opt ssrr" and "with opt lsrr,ssrr".
1736 IPL_NAME needed in ipnat.c - Kelly (kelly@count04.mry.scruznet.com)
1738 patches for clean NetBSD compilation from Bernd Ernesti (bernd@arresum.inka.de)
1740 make install is incorrect - Julian Briggs (julian@lightwork.co.uk)
1742 strtol() returns 0x7fffffff for all negative numbers,
1743 printfr() generates incorrect output for "opt sec-class *",
1744 handling of "not opt xxx opt yyy" incorrect.
1745 - Minh Tonthat (minht@sbei.com)/Pradeep Krishnan (pradeepk@sbei.com)
1747 m_pullup() called only for input and not output; caused problems
1748 with filtering icmp - Nigel Verdon (verdenn@gb.swissbank.com)
1750 parsing problem for "port 1" and NetBSD patches incorrect -
1751 Andreas Gustafsson (gson@guava.araneus.fi)
1753 3.0.2 4/2/96 - Released
1755 Corrected bug where NAT recalculates checksums for fragments.
1757 make NAT recalculate UDP checksums (rather than setting them to 0),
1758 if they're non-zero.
1760 DNS patches - Real Page (Real.Page@Matrox.com)
1762 alteration of checksum recalculations in NAT code and addition of
1763 redirection with NAT - Mike Neuman
1765 core dump, if tcp/udp is used with a port number and not service name,
1766 in ipf - Mike Neuman (mcn@engarde.com)
1768 initparse() call, missing to prime "<thishost>" hook - Craig Bishop
1770 3.0.1 14/1/96 - Released
1772 miscellaneous patches for Solaris2
1774 3.0 14/1/96 - Released
1776 Patch included for FDDI, from Richard Ohnemus
1777 (Richard_Ohnemus@dallas.csd.sterling.com)
1779 Code cleanup for release.
1783 recursive mutex in ipfr_slowtimer fixed, reported by Craig Bishop
1785 recursive mutex in sending TCP RSTs fixed, reported by Tony Becker
1789 FIxup for Solaris2.5 install and interface name bug in ipftest from
1790 Julian Briggs (julian@lightwork.co.uk)
1792 Byte order patches for ipmon from Tony Becker (tony@mcrsys.com)
1796 Added the (somewhat warped) IP accounting as it exists in ipfw on FreeBSD.
1797 Note, this isn't really what one would call IP account, when compared to
1798 process accounting, sigh.
1800 Split up ipresend into iptest/ipresend/ipsend
1802 Added another m_pullup() inside fr_check() for BSD style kernels and
1803 added some checks to ipllog() to not log more than is present (for short
1806 Fixed bug where failed hostname/netname resolution goes undetecte and
1807 becomes 0.0.0.0 (any) (reported Guido van Rooij)
1809 3.0beta 11/11/95 - Released
1811 Rewrote the way rule testing is done, reducing the number of files needed and
1814 SIOCIPFFL was incorrectly affected by IPFILTER_LOG (Mathew Green)
1816 Patches from Guido van Rooij to fix sending back TCP RSTs on Net-2/Net-3
1817 BSD based Unixes (panic'd)
1819 Patches for FreeBSD/i86 ipmon from Riku Kalinen <riku@tequila.nixu.fi>
1820 (I think someone else already told me about these but they got lost :-/)
1822 Changed Makefile structure to build object files for different operating
1823 systems in separate directories by default.
1825 BSDI has ef0 for first ethernet interface
1827 Allow for a "not" operator before optional keywords.
1829 The "rule number" was being incorrectly incremented every time it went through
1830 the loop rather than when it matched a rule.
1832 2.8.2 24/10/95 - Released
1834 Fixed up problems with "textip" for doing lots of testing.
1836 Fixed bug in detection of "short" tcp/ip packets (all reported as being short).
1838 Solaris 2.4 port now works 100%.
1840 Man page errors reported and fixed.
1842 Removed duplicate entry in etc/services for login on port 49 (Craig Bishop).
1844 Fixed ipmon output to put a space after the log-letter.
1846 Patch from Guido van Rooij to fix parsing problem.
1848 2.8.1 15/10/95 - Released
1850 Added ttl and tos filtering.
1852 Patches for fixing up compilation and port problems (little endian)
1853 from Guido van Rooij <guido@IAEhv.nl>.
1855 Man page problems reported and fixed by Carson Gaspar <carson@lehman.com>.
1857 ipsend doesn't compile properly on Solaris2.4
1859 Lots of work done for Solaris2.4 to make it MT/MP safe and work.
1861 2.8 15/9/95 - Released
1863 ipmon can now send messages to syslogd (-s) and use names instead of
1866 IP packets are now "compiled" into a structure only containing filterable
1869 Added regression testing in the test/ subdirectory, using a new option
1870 (-b) with the ipftest program.
1872 Added "nomatch" return to filter results. These are counted and show
1873 up in reports from ipfstat.
1875 Moved filter code out of ip_fil.c and into fil.c - there is now only one
1876 instance of it in the package.
1878 Added Solaris 2.4 support.
1880 Added IPSO basic security option filtering.
1882 Added name support for filtering on all 19 named IP options.
1884 Patches from Ivan Brawley to log packet contents as well as packet headers.
1886 Update for sun/conf.c.diff from Ivan Brawley <ibrawley@awadi.com.AU>
1888 Added patches for FreeBSD 1, and added two new switches (-E, -D) to ipf,
1889 along with a new ioctl, SIOCFRENB.
1890 From: Dieter Dworkin Muller <dworkin@village.org>
1892 2.7.3 31/7.95 - Released
1894 Didn't compile cleanly without IPFILTER_LOG defined (Mathew Green).
1896 ipftest now deals with tcpdump3 binary output files (from libpcap) with -P.
1898 Brought ipftest program upto date with actual filter code.
1900 Filter would cause a match to occur when it wasn't meant to if the packet
1901 had short headers and was missing portions that should have been there.
1902 Err, it would rightly not match on them, but their absence caused a match
1903 when it shouldn't have been.
1905 2.7.2 26/7/95 - Released
1907 Problem with filtering just SYN flagged packets reported by
1908 Dieter Dworkin Muller <dworkin@village.org>. To solve this
1909 problem, added support for masking TCP flags for comparison "flags X/Y".
1911 2.7.1 9/7/95 - Released
1913 Added ip_dirbroadcast support for Sun ip_input.c
1915 Fixed up the install scripts for FreeBSD/NetBSD to recognise where they are
1918 2.7 7/7/95 - Released
1920 Added "return-rst" to return TCP RST's to TCP packets.
1922 Actually ported it to FreeBSD-i386 2.0.0, so it works there properly now.
1924 Added insertion of filter rules. Use "@<#>" at the beginning of a filter
1925 to insert a rule at row #.
1927 Filter keeps track of how many times each rule is matched.
1929 Changed compile time things to match kernel option (IPFILTER_LKM &
1932 Updated ip_input.c and ip_output.c with paches for 3.5 Multicast IP.
1933 (No change required for 3.6)
1935 Now includes TCP fragments which start inside the TCP header as being short.
1936 Added counting the number of times each rule is matched.
1939 2.6 11/5/95 - Released
1941 Added -n option to ipf: when supplied, no changes are made to the kernel.
1943 Added installation scripts for SunOS 4.1.x and NetBSD/FreeBSD/BSDI.
1945 Rewrote filtering to use a more generic mask & match procedure for
1946 checking if a packet matches a rule.
1948 2.5.2 27/4/95 - Released
1950 "tcp/udp" and a non-initialised pointer caused the "proto" to become
1951 a `random' value; added "ip#/dotted.mask" notation to the BNF.
1952 From Adam W. Feigin <feigin@iis.ee.ethz.ch>
1954 2.5.1 22/3/95 - Released
1956 "tcp/udp" had a strange effect (undesired) on getserv*() functions,
1957 causing protocol/service lookups to fail. Reported by Matthew Green.
1959 2.5 17/3/95 - Released
1961 Added a new keyword "all" to BNF and parsing of tcpdump/etherfind/snoop
1962 output through the ipftest program. Suggestions from:
1963 Michael Ciavarella (mikec@phyto.apana.org.au)
1965 Conflicts occur when "general" filter rules are used for ports and the
1966 lack of a "proto" when used with "port" matches other packets when only
1967 TCP/UDP are implied.
1968 Reported Matthew Green (mrg@fulcom.com.au);
1969 reported & fixed 6-8/3/95
1971 Added filtering of short TCP packets using "with short" 28/2/95
1972 (These can possibly slip by checks for the various flags). Short UDP
1973 or ICMP are dropped to the floor and logged.
1975 Added filtering of fragmented packets using "with frag" 24/2/95
1977 Port to NetBSD-current completed 20/2/95, using LKM.
1979 Added logging of the rule # which caused the logging to happen and the
1980 interface on which the packet is currently as suggested by
1981 Andreas Greulich (greulich@math-stat.unibe.ch) 10/2/95
1983 2.4 9/2/95 - Released
1984 Fixed saving of IP headers in ICMP packets.
1987 Added ipf -F [in|out|all] to flush filter rule sets (SIOCIPFFL).
1988 Fixed iplread() and iplsave() with help from Marc Huber.
1990 2.2 7/1/95 - Released
1991 Added code from Marc Huber <huber@fzi.de> to allow it to allocate
1992 its own major char number dynamically when modload'ing. Fixed up
1993 use of <, >, <=, >= and >< for ports.
1995 2.1 21/12/94 - Released
1996 repackaged to include the correct ip_output.c and ip_input.c *goof*
1998 2.0 18/12/94 - Released
1999 added code to check for port ranges - complete.
2000 rewrote to work as a loadable kernel module - complete.
2003 added code for ouput filtering as well as input filtering and added support for logging to a simple character device of packet headers.
2005 1.0 22/04/93 - Released