Michael Tremer
1b34f6cd64
firewall: Fix SNAT rules that use a default network as source
...
In the POSTROUTING chain using -i intf0 does not work at all.
We now only use the -s parameter to figure out if the rule applied.
The filter chain still uses -i and -o to match patches not only
by the network address, but also by the incoming/outgoing interface.
2015-01-22 16:06:25 +01:00
Michael Tremer
d840d02aee
firewall: Fix off-by-one error in configuration parser
...
The configuration parser determines how many comma-separated
values there are in a line. If new values are added we need
to check first if those are set in every line to avoid any
undefined behaviour. A wrong comparison parameter was used
which caused that the limit feature was never enabled in
the rule generation.
2015-01-02 12:27:16 +01:00
Arne Fitzenreiter
24d36c80a6
p2pblock: fix flush rules if all p2p's are allowed.
2014-10-05 15:12:44 +02:00
Arne Fitzenreiter
2a5b19c56f
p2pblock: ipp2p must run before CONNTRACK.
...
And can only used for blocking, not for accept conenections bacause connections must already established for detecting protocol types.
2014-10-04 17:39:51 +02:00
Michael Tremer
791c2b45d8
firewall: fix rules.pl for old rules without ratelimiting.
2014-10-04 13:52:15 +02:00
Michael Tremer
7e09a94a81
Merge remote-tracking branch 'amarx/BUG10620' into next
2014-09-26 13:03:22 +02:00
Michael Tremer
60bce6ba6a
Merge remote-tracking branch 'amarx/BUG10615' into next
2014-09-26 13:02:28 +02:00
Michael Tremer
df6649b0fe
Merge remote-tracking branch 'amarx/firewall-dnat' into next
...
Conflicts:
config/firewall/rules.pl
2014-09-26 12:55:55 +02:00
Alexander Marx
ca4259a758
BUG10620: reload firewall.local in rules.pl, no longer in initscript
2014-09-11 17:13:07 +02:00
Alexander Marx
d2793ea805
BUG10615 part3: adapt rules.pl to use connectionlimit and ratelimit
2014-09-11 15:06:26 +02:00
Michael Tremer
4e9a2b5732
general-functions.pl: Replace lots of broken network code.
...
The state of some code especially in general-functions.pl
is in such a bad shape and faulty.
This is a first step that replaces some of the network
functions with those who have been tested and work for
undefined inputs.
The old functions have been left in place as stubs
and must be removed at some time.
2014-07-27 22:46:20 +02:00
Alexander Marx
48f07c1957
Firewall: make DNAT only accessible from selected source network
...
We added RED to the standard networks and now portforwardings are only
useable from the selected source. If selected "all" the portforwarding
can be used from any internal network. Else the access is only grnated
from the selected source network.
2014-07-18 08:44:45 +02:00
Michael Tremer
ff7cb6d60f
firewall: Fix accessing port forwardings from internal networks.
...
When a different "external port" was used, false rules have
been created in the mangle table.
2014-04-20 18:13:35 +02:00
Michael Tremer
766c2f601d
rules.pl: Rewrite P2P protocol filter.
2014-04-12 15:40:14 +02:00
Michael Tremer
aa5f4b6568
firewall: Fix creation of automatic rules for the firewall.
...
If the firewall is part of a local network (e.g. GREEN),
we automatically add rules that grant/forbid access for the firewall,
too.
This has been broken for various default policies other than ALLOWED.
2014-04-12 15:16:08 +02:00
Michael Tremer
fcc68a4277
firewall: Fix rule generation for protocols without ports.
2014-04-09 14:06:32 +02:00
Michael Tremer
085a20ec8b
firewall: Fix using aliases.
...
Fix coding errors, actually read aliases configuration
and fall back to default RED IP address if no suitable
alias was found.
2014-04-05 17:09:56 +02:00
Michael Tremer
025741919a
firewall: Fix perl coding error.
...
Example:
my @as = (1, 2, 3);
foreach my $a (@as) {
$a += 1;
print "$a\n";
}
$a will be a reference to the number in the array and not
copied. Therefore $a += 1 will change the numbers in the
array as well, so that after the loop the content of @as
would be (2, 3, 4).
To avoid that, the number needs to be copied into a new
variable like: my $b = $a; and we are fine.
This caused that the content of the @sources and @destinations
array has been altered for the second run of the loop and
incorrect (i.e. no) rules were created.
2014-03-31 13:16:26 +02:00
Michael Tremer
51cf3f8be5
firewall: rules.pl: Honour time constraints for NAT rules as well.
2014-03-21 13:39:03 +01:00
Michael Tremer
f98bb538e5
firewall: rules.pl: Catch invalid configurations.
2014-03-21 13:33:08 +01:00
Michael Tremer
c0ce920610
firewall: rules.pl: Allow REDIRECT rules.
2014-03-21 13:28:00 +01:00
Alexander Marx
4e54e3c6f5
Firewall: Move some functions from rules.pl to firewall-lib.pl
2014-03-21 12:51:04 +01:00
Michael Tremer
d7a14d01e1
firewall: rules.pl: Fix rules with other NAT port.
2014-03-21 12:40:55 +01:00
Michael Tremer
b0d9fad3f9
firewall: rules.pl: Add support for auto selection of NAT addresses.
2014-03-18 23:49:23 +01:00
Michael Tremer
da7a2208d3
firewall: rules.pl: Code cleanup.
2014-03-17 18:03:00 +01:00
Michael Tremer
5cf8c8c123
firewall: Fix DNAT rules between internal zones.
2014-03-17 17:39:47 +01:00
Michael Tremer
c2a1af7545
firewall: rules.pl: Sanitise source and destination IP addresses.
...
Those variables are now empty if source or destination are
unspecified.
2014-03-17 16:24:23 +01:00
Michael Tremer
e9b5ba4179
firewall: Add auxiliary rules for firewall access.
...
Rules for accessing the firewall are added when access
to networks (GREEN, BLUE, ...) the firewall resides in is allowed.
2014-03-10 21:31:20 +01:00
Michael Tremer
0bda23f5a1
firewall: Add chain name to logged rules.
...
This helps us to debug faster where a packet has been dropped.
2014-03-04 12:38:13 +01:00
Michael Tremer
3bb4bb3fa1
firewall: Add rate limiting for LOG messages.
...
Fixes #10488 .
2014-03-04 12:36:52 +01:00
Michael Tremer
824dc93601
firewall: Add a trailing space to all log prefixes for better readability.
2014-03-02 22:50:29 +01:00
Michael Tremer
9f80e81072
firewall: rules.pl: Remove unused variable $time_constraints.
2014-03-02 22:46:17 +01:00
Michael Tremer
d98aa95a55
firewall: rules.pl: Replace some hardcoded chain names.
2014-03-02 22:44:26 +01:00
Michael Tremer
1c3044d72c
firewall: Resurrect port forwardings with different external ports.
2014-03-02 22:35:27 +01:00
Michael Tremer
6e87f0aa53
firewall: Allow accessing port forwardings from internal networks.
2014-03-02 20:37:44 +01:00
Michael Tremer
8f4f4634df
firewall: rules.pl: Refactored entire script.
2014-03-02 18:23:28 +01:00
Michael Tremer
b05ec50ac9
firewall: rules.pl: Cleanup time constraints generation.
2014-03-01 20:20:56 +01:00
Michael Tremer
6178953be5
firewall: rules.pl: Cleanup rule generation.
...
Various perl coding errors that have been suppressed by "no warnings uninitialized"
have been fixed and lots of helper variables have been introduced to make
it much more clearer what the code is actually doing.
2014-03-01 19:54:14 +01:00
Michael Tremer
1f9e7b53b7
firewall: rules.pl: Remove $command and introduce $IPTABLES.
2014-03-01 18:19:09 +01:00
Michael Tremer
8531b94ae0
firewall: rules.pl: Remove command line args parsing and rest from old debugging mode.
2014-03-01 18:07:39 +01:00
Michael Tremer
68d1eb1017
firewall: rules.pl: Introduce a more slink debugging mode.
2014-03-01 18:04:40 +01:00
Michael Tremer
97ab0569bd
firewall: rules.pl: Fix some coding style.
2014-03-01 17:54:22 +01:00
Michael Tremer
b57edbd8ec
firewall: rules.pl: Remove totally bloated debug mode.
2014-03-01 17:49:22 +01:00
Michael Tremer
60fb533157
firewall: rules.pl: Don't reload custom firewall rules here.
2014-03-01 15:01:58 +01:00
Alexander Marx
800077a689
Firewall: Skip rules on boot when red has no ip
2014-02-27 19:42:47 +01:00
Michael Tremer
a8d1d049c6
Revert "Firewall: Fix errormessages on rulecreation when red has no IP"
...
This reverts commit f942937c29
2014-02-26 20:02:24 +01:00
Alexander Marx
f942937c29
Firewall: Fix errormessages on rulecreation when red has no IP
2014-02-24 19:39:39 +01:00
Alexander Marx
97bf45e516
Firewall: delete -i red0 from DNAT rules
2014-02-24 19:38:57 +01:00
Alexander Marx
525204e00f
Firewall: modified DNAT and SNAT rulecreation
2014-02-24 11:54:27 +01:00
Michael Tremer
cc21b588df
firewall: Remove rule that allows access to everything.
2014-02-20 13:03:28 +01:00
