10f199d832
firewall: add DHCPv6 default rule ( #10381 )
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SVN-Revision: 28874
2011-11-09 11:10:37 +00:00
50a22f4f9e
firewall: relocate TCPMSS rules into mangle table, add code to selectively clear them out again
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SVN-Revision: 28669
2011-10-29 18:02:45 +00:00
c7ac1b5b0c
firewall: do not produce 0.0.0.0/0 if a symbolic masq_src or masq_dest is given but does not resolve to an ip
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SVN-Revision: 28628
2011-10-27 18:14:55 +00:00
204bf6e5fe
firewall: prevent ip6tables -t nat rules ( #10265 )
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SVN-Revision: 28535
2011-10-23 12:25:57 +00:00
69df551be3
firewall: fix another instance of unquoted "*"
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SVN-Revision: 28529
2011-10-22 21:38:10 +00:00
9a61d9e513
firewall: fix possible expansion of "*" when rules with "option src *" are processed
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SVN-Revision: 28527
2011-10-22 20:11:25 +00:00
e0e73928da
firewall: do not check for module availability, let iptables fail if a feature is not present ( #7610 )
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SVN-Revision: 28525
2011-10-22 19:50:35 +00:00
995face56d
firewall: make ESTABLISHED,RELATED rules match before INVALID, use conntrack instead of state match ( #10038 )
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SVN-Revision: 28148
2011-09-01 20:37:22 +00:00
f1e7045d30
firewall: further tune ICMPv6 default rules according to RFC4890 ( #9893 )
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SVN-Revision: 27979
2011-08-14 00:33:29 +00:00
7a206885df
firewall: prevent redundant rules if multiple ports and multiple icmp types are given in a rule block for both icmp and other protocols
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SVN-Revision: 27792
2011-07-26 22:21:39 +00:00
90ac92e8be
firewall: fix serious bug in state var handling ( #9746 )
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SVN-Revision: 27711
2011-07-20 15:29:10 +00:00
78fa88ca81
firewall: rework state variable handling, use uci_toggle_state() where applicable and properly handle duplicates in add and del state helpers ( #9152 , #9710 )
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SVN-Revision: 27618
2011-07-15 15:03:57 +00:00
a92ed1808c
firewall: make sure that -m mac is used with --mac-source, follow up to r27508
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SVN-Revision: 27519
2011-07-07 10:28:31 +00:00
ca7383e701
firewall: also correct another variable missed in previous commit
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SVN-Revision: 27508
2011-07-07 08:59:40 +00:00
c8531fca5d
firewall: fix wrong variable names for protocol command line parameter - were missed during r27500
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SVN-Revision: 27507
2011-07-07 08:54:29 +00:00
dd4934a943
firewall: - solve scoping issues when multiple values are used, thanks Daniel Dickinson - ignore src_port/dest_port for proto icmp rules, ignore icmp_type for non-icmp rules - properly handle icmp when proto is given in numerical form (1, 58) - support negated icmp types
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SVN-Revision: 27500
2011-07-06 22:10:46 +00:00
05c45f0f5e
firewall: fix udp rules for tcpudp proto rules using src_port and dest_port after modification by the parsing of the tcp rule
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SVN-Revision: 27469
2011-07-06 06:26:12 +00:00
600a8517ad
firewall: fix port range quirk in previous commit
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SVN-Revision: 27335
2011-07-01 11:50:48 +00:00
df14a48dc9
firewall: properly handle negated ports in nat reflection
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SVN-Revision: 27334
2011-07-01 11:48:14 +00:00
07abf4a81e
firewall: refine default ICMPv6 rules to better conform with RFC4890, do not forward link local ICMP message types, allow parameter problem
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SVN-Revision: 27321
2011-06-30 12:22:05 +00:00
8f0fb81dfe
firewall: restore local port relocation ability from r26617
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SVN-Revision: 27318
2011-06-30 01:36:09 +00:00
68a1c8e1e3
firewall: - allow multiple ports, protocols, macs, icmp types per rule - implement "limit" and "limit_burst" options for rules - implement "extra" option to rules and redirects for passing arbritary flags to iptables - implement negations for "src_port", "dest_port", "src_dport", "src_mac", "proto" and "icmp_type" options - allow wildcard (*) "src" and "dest" options in rules to allow specifying "any" source or destination - validate symbolic icmp-type names against the selected iptables binary - properly handle forwarded ICMPv6 traffic in the default configuration
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SVN-Revision: 27317
2011-06-30 01:31:23 +00:00
9f37422f2f
firewall: ensure that fw_get_subnet4() sets an empty value if no (valid) IPv4 addr was found
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SVN-Revision: 27198
2011-06-16 22:18:45 +00:00
c014101d73
firewall: allow symbolic names of interfaces and aliases in masq_src and masq_dest
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SVN-Revision: 27196
2011-06-16 21:54:59 +00:00
f2b7c81d46
firewall: explictely mention network in default configuration, makes it less confusing
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SVN-Revision: 26961
2011-05-20 13:45:40 +00:00
2e9e4c435f
firewall: revert accidential committed changes from r26805
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SVN-Revision: 26806
2011-05-02 12:55:36 +00:00
ad23dd94b6
firewall: provide examples of ssh port relocation on firewall and IPsec passthrough Two examples of potentially useful configurations (commented out, of course):
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(a) map the ssh service running on the firewall to 22001 externally, without modifying the configuration of the daemon itself. this allows port 22 on the WAN side to then be port-forwarded to a
LAN-based machine if desired, or if not, simply obscures the port from external attack.
(b) allow IPsec/ESP and ISAKMP (UDP-based key exchange) to happen by default. useful for most modern VPN clients you might have on your WAN.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
SVN-Revision: 26805
2011-05-02 12:54:31 +00:00
2a386cee99
firewall: prevent excessive uci state data aggregation ( #9152 )
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SVN-Revision: 26740
2011-04-20 11:49:09 +00:00
a9977eca91
firewall: allow local redirection of ports
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Allow a redirect like:
config redirect
option src 'wan'
option dest 'lan'
option src_dport '22001'
option dest_port '22'
option proto 'tcp'
note the absence of the "dest_ip" field, meaning to terminate the connection on the firewall itself.
This patch makes three changes:
(1) moves the conntrack module into the conntrack package (but not any of the conntrack_* helpers).
(2) fixes a bug where the wrong table is used when the "dest_ip" field is absent.
(3) accepts incoming connections on the destination port on the input_ZONE table, but only for DNATted
connections.
In the above example,
ssh -p 22 root@myrouter
would fail from the outside, but:
ssh -p 22001 root@myrouter
would succeed. This is handy if:
(1) you want to avoid ssh probes on your router, or
(2) you want to redirect incoming connections on port 22 to some machine inside your firewall, but
still want to allow firewall access from outside.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
SVN-Revision: 26617
2011-04-12 20:03:59 +00:00
af82471525
firewall: prevent duplicate values in interface state vars
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SVN-Revision: 26382
2011-03-30 20:29:17 +00:00
a2cd7b2883
Keep firewall.user during sysupgrades
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SVN-Revision: 26241
2011-03-20 00:57:47 +00:00
13333a6742
firewall: move include sourcing into a subshell, this makes the firewall init immune against exit in the include scripts
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SVN-Revision: 25835
2011-03-02 19:20:29 +00:00
1ca64678bb
firewall: fix rule generation for v4 or v6 only zones ( #8955 )
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SVN-Revision: 25813
2011-03-01 18:04:14 +00:00
04b20727d8
firewall: fix wrong rule order if multiple protocols are used
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SVN-Revision: 25179
2011-01-27 22:19:53 +00:00
a43f5b5038
firewall: insert SNAT and DNAT rules according to the order of the configuration file ( #8052 )
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SVN-Revision: 23318
2010-10-08 12:11:55 +00:00
7bf84dc4f8
firewall: also establish forward rules when setting up nat reflection, back out early if reflection is disabled
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SVN-Revision: 23201
2010-10-03 18:11:59 +00:00
1a0d7a3612
firewall: fix chain selection logic, option dest must be ignored for notrack targets
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SVN-Revision: 23143
2010-09-28 11:38:31 +00:00
a1a31f1831
firewall: don't setup nat reflection if negations are used
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SVN-Revision: 23142
2010-09-28 11:11:11 +00:00
6a335579b8
fireall: - support negations for src_ip, dest_ip, src_dip options in rules and redirects - add NOTRACK target to rule sections, allows to define fine grained notrack rules
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SVN-Revision: 23141
2010-09-28 10:42:56 +00:00
b07620df31
firewall: protect iptables invocations with locks in interface ops, it might run concurrently due to hotplug invocations on network restart
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SVN-Revision: 23090
2010-09-19 15:01:47 +00:00
f90328f26e
firewall: make invalid redirects and duplicate zones non-fatal, print a notice and discard them
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SVN-Revision: 23080
2010-09-16 11:47:35 +00:00
7557011cb1
firewall: run ifdown hotplug events synchronized, fixes a racecondition on "ifup iface" when ifdown and ifup events are delivered with a small dealy
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SVN-Revision: 23064
2010-09-15 01:53:36 +00:00
1fe50da4bb
firewall: deliver remove hotplug events for all active zones/networks when restarting the firewall
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SVN-Revision: 23062
2010-09-14 23:11:12 +00:00
f3dd8278bb
firewall: - simplify masquerade rule setup - remove various subshell invocations - speedup fw() by not relying on xargs and pipes - rework SNAT support - attach to dest zone, use src_dip/src_dport as snat source
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SVN-Revision: 23024
2010-09-11 20:04:34 +00:00
5ab58aa39c
firewall: - fix possible endless loop when the family option is used for forwardings - only generate forwarding rules in SNAT redirect sections if src_dip is specified
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SVN-Revision: 22938
2010-09-05 20:17:23 +00:00
eb79296cc1
firewall: introduce SNAT support for redirect sections
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SVN-Revision: 22937
2010-09-05 19:03:17 +00:00
f4ee14e1c3
firewall: add option to disable NAT reflection
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SVN-Revision: 22908
2010-09-04 17:49:14 +00:00
ca5bf9e291
firewall: - handle NAT reflection in firewall hotplug, solves synchronizing issues on boot - introduce masq_src and masq_dest options to limit zone masq to specific ip ranges, supports multiple subnets and negation
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SVN-Revision: 22888
2010-09-04 15:49:13 +00:00
ee4dd61b10
firewall: - fix processing of rules with an ip family option - append interface rules at the end of internal zone chains, simplifies injecting user or addon rules - support simple file logging (option log + option log_limit per zone)
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SVN-Revision: 22847
2010-08-31 01:54:08 +00:00
5b365822f3
firwall: fix nat reflection for zones covering multiple networks
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SVN-Revision: 22442
2010-07-31 13:25:56 +00:00
Jo-Philipp Wich
Daniel Dickinson
Travis Kemen