4 version history for ferm
6 Max Kellermann <max@foo-projects.org>
7 Auke Kok <sofar@foo-projects.org>
10 v2.1.1 - not yet released
14 - new functions @basename, @dirname, @ipfilter
15 - add automatic variables $FILENAME, $LINE
16 - updated netfilter modules:
17 * pkg-type: support negation
18 * set: "--match set" support for newer iptables
19 - updated ebtables support:
20 * use per-protocol options
21 * add support for -p ARP --arp-gratuitous
22 * support abbreviations in arguments
23 * add support for matching IPv6
24 * add support for "among" match
25 * add support for the "limit" match
26 - honor --noflush in fast mode
27 - discard previous specifications when @if fails
28 - use the --domain argument as the default domain
29 - keep track of line numbers within custom function calls
33 - updated netfilter modules:
34 * state: support negation
35 * icmp: translate "icmp-type" to "icmpv6-type" in domain "ip6"
36 - add functions @cat, @substr, @length
37 - subchain names can now be expanded
38 - import-ferm: support empty string parameters
42 - added automatic variable $DIRNAME
43 - implement confirmation/rollback for --shell --interactive
44 - added the "type" parameter to @resolve()
45 - new functions @eq, @ne, @not
46 - updated netfilter modules:
47 * ebtables/snat: support --snat-arp
48 - add parameter --timeout for rollback
52 - fix post and flush hooks with --lines
53 - always prefix the negation operator
54 - updated netfilter modules:
55 * addrtype: support negation and --limit-iface-{in,out}
56 * conntrack: support negation and --ctdir
57 * owner: support negation and --socket-exists
58 * policy: support negation
62 - support negation in mark/connmark
63 - support negation in set
64 - added automatic variable $FILENAME
65 - allow @subchain as the first keyword in a closure
66 - don't allow semicolon after empty rule
67 - enable @include to run a program
68 - removed superfluous tokens from error message
69 - create a new stack frame for @subchain (fixes $CHAIN)
73 - detect double negation
74 - improved detection of negated arrays
75 - ignore dpkg's backup/temporary files on @include
76 - renamed "hook" to "@hook"
77 - disable "pre" and "post" hooks with --flush
82 - enable policy-only domains (no rules, just policy declarations)
83 - don't list custom chains in --flush --fast mode
87 - create chains and subchains even if they are empty
88 - fix includes within a rule ("Missing semicolon...")
89 - fix subchain in include ("Died at [...] line 1493")
90 - "protocol" is an alias for "proto", to fix the keyword conflict with
95 - allow duplicate specification of "table" and "chain", for better
96 1.3.x compatibility. Support for this will be removed in a later
97 release. This does not apply to "domain".
101 - generate "COMMIT" lines when flushing in fast mode
102 - don't hard-code the path of iptables-save
103 - install manpages in PREFIX/share/man
107 - don't hard code built-in match modules
108 - support for arptables and ebtables
109 - removed support for deprecated ferm 1.1 syntax
110 - removed the "set" and the "option" keyword
111 - removed support for array-in-string
112 - cleared the deprecated keyword translation table
113 - removed TOS parameter shortcuts
114 - don't default to policy if no action is specified
115 - don't allow lower case built-in chain or policy names
116 - removed --automod, --use, --clearall, --flushall, --flushchains,
117 --createchains, --location, --debug, --verbose
118 - comma in array is forbidden
119 - removed "source" and "destination" as prefix for "addr" and "port"
120 - don't allow match rules before and after "policy"
121 - removed support for deprecated netfilter modules
125 - rewrote the internal rule storage
126 - honor the order of match modules
127 - import-ferm rewrite
128 - use module data from ferm
129 - write policy in chain block
130 - do not generate implicit protocol modules
131 - do not allow targets options after "jump"
132 - fixed rollback when there is no iptables-save
133 - enable fast mode by default, can be disabled with --slow
137 - don't ignore unknown keywords after target (reported by Kai
139 - don't include hidden files (reported by Florian Reitmeir)
143 - fixed single quote escaping
144 - escape empty strings
145 - reset module list after semicolon handler (reported by Ralph Oesker)
146 - import-ferm: ignore the position of the negation marker; this allows us
147 to parse invalid save files generated by iptables-save (reported by
149 - fixed REDIRECT example in the manual
153 - updated netfilter modules:
154 * recent: support --rsource, --rdest
155 * time: support --monthday, --weekdays, --utc, --localtz
156 * u32: suport negated --u3
157 * DNAT: support --random
158 * MARK: support --set-xmark, --and-mark, --or-mark, --xor-mark
159 * MASQUERADE: support --random
160 * REDIRECT: support --random
161 * SNAT: support --random
162 * TOS: support --and-tos, --or-tos, --xor-tos
163 - check if chain was specified before @subchain
164 - suppress "not declared" warnings on empty custom chains
168 - bugfix: emit "--proto" instead of "--protocol" for xt_policy "proto"
169 - bugfix: handle array after DNAT/to-destination correctly
170 - target options cannot have arrays by default
171 - support netfilter modules:
174 - support netfilter targets:
175 * CLASSIFY (documentation)
178 * SAME (--random, documentation)
182 - require IO::Handle, this fixes the interactive mode
183 - configure test mode properly when running on microperl
187 - reserve tokens starting with "@" as ferm keywords
188 - implemented conditionals with @if/@else
189 - added @include/@def/@subchain as alias to include/def/subchain
190 - redirect STDOUT into STDERR --shell mode; this way, iptables warnings
191 are separated from the ferm shell script output
192 - microperl compatiblity:
193 - don't require strict.pm / vars.pm
195 - added simple Getopt::Long emulation
196 - look for iptables in PATH
197 - added function @resolve which resolves host names to IPv4 addresses
198 - import-ferm supports ip6tables-save files
199 - support "proto icmp" in the ip6 domain
200 - make "goto" deprecated to remap it to "--goto" later
201 - implemented "--goto" support, keyword is "realgoto"
202 - don't default to policy if rule action is missing
203 - support protocol modules
205 * udplite (sport, dport, mod multiport)
206 - support netfilter modules:
210 - support netfilter targets:
213 - abort when there is an unrecognized command line option (reported by
215 - import-ferm: don't generate NOP action before a block
216 - import-ferm: quote array values
217 - quote the ampersand
221 - make --flush do something in fast mode (reported by Hans-Georg Bork)
222 - fix automatic protocol modules when used in an expanded array
223 (reported by Ralph Oesker)
227 - support netfilter modules:
229 * ipset (patch by Martin Schuster)
230 - ignore empty lines in backticks result (reported by Martin Klozik)
231 - the match module for protocol "icmpv6" is named "icmp6"
232 - implemented basic hooks (suggested by Joerg Jaspert)
238 - subchains may be named
239 - don't copy module references to subchain (patch by Alex Metelka)
240 - override variables on the command line with "--def"
241 - auto-load modules only when their parameters are used
243 * targets MIRROR, NETMAP, NFQUEUE, NOTRACK, QUEUE
248 * warn against using iptables 1.2 with import-ferm
249 * extended the transition section in the manpage
250 - support netfilter modules: account
251 - bugfix: don't clear variable value when used as parameter in
252 multiport/destination-ports (reported by Bill Goudie)
256 - bugfix: reset domains after all rules were parsed and don't forget to
257 reset a table; this bug only affects users who run ferm on a remote
259 - reset policy on all guessed built-in chains if no authoritative
260 information about built-in chains is available
261 - support netfilter modules: condition, fuzzy, hbh, hl, ipv6header, rt,
263 - extended module support
264 * ah now supports the IPv6 options
265 - added missing documentation
267 * match modules: dst, eui64, frag
268 - disabled array after ttl-lt, ttl-gt
269 - allow "length", "physdev", "tos" negation
270 - translate sports, dports to source-ports, destination-ports in import-ferm
271 - added the "--remote" option
275 - import-ferm runs iptables-save if no input file is provided
278 v1.2beta2 - 9 Sep 2006
280 - added --shell which generates a shell script
281 - don't check available netfilter modules
282 - read iptables-save in initialize_netfilter()
283 - option --location is deprecated, ferm now calls /sbin/iptables
284 - whitespace fix in import-ferm
285 - allow late chain/table specification again
286 - set a second alarm in the confirmation dialog
287 - enable rollback feature even in non-interactive mode
290 v1.2beta1 - 28 Aug 2006
292 - removed support for ipfwadm and ipchains
293 - get a list of netfilter table names from /proc/net/ip_tables_names
294 - error messages go to STDERR
295 - full support for the match extensions: recent, comment, conntrack,
296 addrtype, ah, owner, time, dscp, ecn, helper, iprange, iplimit, length,
297 multiport, physdev, policy, realm, tcpmss, dst, frag
298 - full support for the targets: BALANCE, CLASSIFY, CONNMARK, NETMAP, ROUTE,
299 SNAT, TARPIT, NFQUEUE, SAME, DSCP
300 - support the protocols: dccp, sctp
301 - implemented variables and functions with 'def'
302 * variables and functions are local to their containing block
303 - stricter syntax checks, e.g.:
304 * some built-in targets must be uppercase
305 * only one target is allowed
306 * target parameters are only recognized after the target name, protocol
307 parameters only after the protocol match etc.
308 * referenced variables must exist
309 * list item negation is not possible
310 * only ACCEPT and DROP are allowed as policy
311 * tables and chains must be specified first
313 * using a policy as default target for a rule
314 * target MASQ, use MASQUERADE instead
315 * lower-case built-in chain names and targets
316 * lists must be specified with parantheses and no commas (old syntax
317 is deprecated, but still supported)
318 * variables declared with 'set' and referenced with '%NAME'
319 * many shortcuts like 'mac' and 'tosrc'
320 * shortcuts without the dash like 'tcpflags' ('tcp-flags')
321 * "option iptables"; only iptables is supported
324 * policy within a rule declaration
325 - fixed the double-module bug
326 - show filename and line number in error message
327 - implemented the 'include' command
328 - more shortcuts for command line options
329 - better set-tos parameter parser
330 - reimplemented backticks
331 - reimplemented tokenizer and parser
332 - escape shell parameters
333 - warn about unused custom chains
335 - options --clearall, --createchains are implied and deprecated
336 - options --debug and --verbose are deprecated
337 - reset all policies to ACCEPT
338 - variables expansion happens within double quotes
339 - implemented automatic variables: $TABLE, $CHAIN
340 - IPv6/ip6tables support
342 - print line number when iptables reports an error
343 - write error messages to STDERR
344 - replaced the old samples with new ones
345 - check which match and target modules are available
346 - generate output iptables-save format when --fast is specified
347 - semi-automatic sub chains with the 'subchain' keyword
348 - support tcp-flags negation
349 - added interactive mode
353 - Removed 'mark' as possible target due to nameclash
354 - Fixed typo in tos values with missing space
355 - Added support for shell escapes
356 - Updated manual page
357 - Fixed bug with ! before variable lists
358 - Added support for multiple variables inside a value
359 - Changed variable character from '$' to '%' to allow system variables
360 - Split up the pod stuff from the ferm source
361 - Fixed word splitter to more a serious approach
362 - Removed internal proxy variable, replaced with 'to' and 'toports' for clearity
363 - Removed the 'relaxed' option, for it wasn't used at it's potential (once)
364 - Added location option for the meek
365 - Have ferm prescan input to look for the kernel program and location
366 - Modified $(DOCDIR) to /usr/share/doc/ferm
367 - Added debug (--debug or -d) parameter for even more output
368 - Added --length,ttl, ttl[set|inc|dec] and ttl-[eq|lt|gt],
369 --[every|counter|start|packet], --average, --pkt-type, --string
370 --time[start|stop] and --days, ip-limit-[above|mask]
371 --psd-[weight-threshold|delay-threshold|[lo|hi]-ports-weight]
372 --to-[source|ports|destination], --set-ftos
373 - Added BALANCE, FTOS, SAME, TCPMSS targets and more
374 - Fixed bug on log/goto combination (missing space) -debian bugs
375 - Allow lists in set statements -debian bugs
376 - Added several patches from misc sources (thanks everyone)
377 - Cleaned up order of builtin targets (now alphabetically ordered)
380 v1.0pl8 - 13 july 2001
381 - Fixed nonexistent parameter values for log-[ip|tcp]-...
382 - Made keyword pattern matching strict, better for finding typo's
383 - Added NOP action (for match-counting)
384 - Added option automodule for automaticly loading correct modules
385 - Fixed -m for mark in iptables mixo
386 - Fixed relaxed matching tos values, still relaxed now though
387 - Fixed mark missing as normal target
388 - Added variable support
389 - Updated manual page partly
392 v1.0pl7 - 21 may 2001
393 - Added support for multiple modules
396 v1.0pl6 - 19 may 2001
397 - Fixed wrongly flushing of chains
398 - Fixed bug which infected policies already set
399 - Updated manual to distinguish between 'log' and 'LOG'
400 - Fixed lower case mismatching targets due to faulty
401 substring expression matching
404 v1.0pl5 - 16 may 2001
405 - Fixed policy keyword bug
406 - Added consistency check for missing semicolons before
408 - Fixed flushall target for multiple tables
409 - Reworked policy system to allow multiple policy settings for
411 - Changed syntax to allow "--state A,B", adapted "--tcp-flags"
412 syntax to do exactly the same (see manual)
415 v1.0pl4 - 11 may 2001
416 - Fixed order of TOS targets/params for iptables
417 - Added correct flushing in combination with policy-setting only
418 - Stripped trailing spaces on rule
419 - Fixed a small grammar error in description
420 - Removed SNAT and DNAT as valid policy targets
421 - Added QUEUE, MARK, MIRROR and RETURN as valid (policy) targets
422 - Added PRE/POSTROUTING chains as valid for policy
423 - Added set-mark parameter, moved 'mark' in ipchains to 'setmark'
424 - Added MASQUERADE <port/range> syntax for iptables
428 - Fixed DENY rule appearing uncapitalized
432 - Added support for SNAT and DNAT targets
433 - Added support for the tcp-flags option
437 - Fixed redirection to host vs port in iptables section
438 - Fixed chain clearing in all tables
439 - Switched to Makefiles for install & uninstall script
443 - Fixed iptables addr/port combination errors (iptables lacks
444 ipchains shorthand method for this)
445 - Removed 'reverse' for iptables (misses capability)
446 - Added filter and nat cleaning for 'clearall' option
447 - Major update on chain-administration in iptables
450 v0.0.18 - 18 Apr 2001
451 - Fixed two minor bugs (typo/parm ordering)
452 - Added ttl-* options for iptables
453 - Fixed log-tcp-*, which don't want parameters
454 - Return of default kernel program, now checked for at first rule
455 generation moment. Default is ipchains (again)
456 - Added PRE- and POSTROUTING targets for iptables
459 v0.0.17 - 19 Feb 2001
460 - Added better literal string handling enclosed in quotes
461 - Added "module" parameter for iptables
462 - Added "LOG" target for iptables, the "log" option still works
463 the old way, so "proto tcp log ACCEPT;" works fine
464 - Fixed table parameter in clearing/policy/creation of chains
465 - Added a special iptables example
466 - Added support for "! syn" and "! fragment" syntax
467 - Fixed fragment parameter bug
470 v0.0.16 - 12 Feb 2001
471 - Fixed default ipchains option- removed the default kernel
473 - Fixed 5 iptables/ipchains copy-paste typo's
477 - Added possibility of "" parameters including spaces and special
478 characters, handy for 'log-prefix'
479 - Fixed minor 'rejectt' bug
480 - Added a realistic ferm config example
481 - Fixed iptables log error (Klaus Lichtenwalder)
484 v0.0.14 - 28 Jan 2001
485 - Fixed tos and set-tos parameter switches for iptables
486 - Added install script
487 - Updated manual page to reflect changes in 0.0.13
488 - Fixed flushing/clearing in iptables
491 v0.0.13 - 10 Jan 2001
492 - Improved iptables support: the following parameters:
493 * table, out-interface, tcp-option, mac-source, limit, limit-burst,
494 all owner-parameters, state, logging options, reject-with
495 - Changed 'tos' into 'settos' to allow 'tos' matching in iptables
496 - Implemented the ! operator, partly by John Auer
500 - Fixed an incredibly stupid bug created in 0.0.11
504 - Fixed a lot of silly bugs with the policy system (uc/lc, wrong
510 - Policy can now be specified as a single statement, like
511 "chain input policy ACCEPT;", allowing policies to be
512 shut down and opened in the process of loading
513 - Added the 'reverse' option
514 - Fixed fqdn specification (Yannick Le Briquer)
515 - Package contains man page in html
519 - REDIRECT option corrected, you can now specify the port number
520 that you are redirecting to (D. Bidwell)
521 - Added basic iptables support
522 - fixed typo error between 's' and 'd' for portspec
523 - Updated manual page
527 - initial release, features: