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
b0ca17ae6e
firewall: mark /etc/firewall.user as conffile
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SVN-Revision: 23231
2010-10-05 07:31:49 +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
1cb2abca8e
add maintainer information
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SVN-Revision: 23159
2010-09-30 10:48:37 +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
baf4782be6
firewall: clean up description ( #7875 )
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SVN-Revision: 22905
2010-09-04 17:39:00 +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
d68e09200e
firewall: add basic NAT reflection/NAT loopback support
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SVN-Revision: 22441
2010-07-31 13:06:14 +00:00
e62a9791ee
firewall: allow redirecting only destination port ( #7197 )
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SVN-Revision: 22227
2010-07-16 06:03:15 +00:00
d6d1dd47d3
firewall: fix another notrack related bug
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SVN-Revision: 22218
2010-07-15 23:24:01 +00:00
f8fa598bf4
firewall: - notrack support was broken in multiple ways, fix it - also consider a zone conntracked if any redirect references it ( #7196 )
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SVN-Revision: 22215
2010-07-15 22:01:48 +00:00
48c357ec01
firewall: - support alias ifnames different from parent ifname - properly handle multiple subnets per alias (v4+v6)
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SVN-Revision: 21656
2010-06-02 00:59:35 +00:00
07b571a239
firewall: Initial alias interface support. This allows to define zones covering alias interfaces and associated entries like rules and forwardings.
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SVN-Revision: 21653
2010-06-01 21:58:48 +00:00
a756114e59
firewall: change the order of IPv4/IPv6 address detection, fixes mixed notation v6 improperly detected as v4 address
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SVN-Revision: 21642
2010-05-31 01:34:47 +00:00
e25fbfccdf
firewall: fix support for netranges in redirect and rule sections
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SVN-Revision: 21640
2010-05-30 23:49:47 +00:00
409edb1b8e
firewall: count rules per chain and family, fix wrong order of ip6tables rules when ipv4 only or dual family rules are defined
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SVN-Revision: 21533
2010-05-22 02:01:19 +00:00
cc84e0672b
firewall: don't apply default udp/68 rule to ip6tables
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SVN-Revision: 21509
2010-05-19 21:37:12 +00:00
40ad9defcc
firewall: - fix ip6tables rules when icmp_type option is set - add "family" option to zones, forwardings, redirects and rules to selectively apply rules to iptables and/or ip6tables
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SVN-Revision: 21508
2010-05-19 21:35:23 +00:00
3875f85110
firewall: add commented disable_ipv6 option to default config
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SVN-Revision: 21505
2010-05-19 09:49:21 +00:00
3ffd27f905
firewall: implement disable_ipv6 uci option
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SVN-Revision: 21503
2010-05-19 01:55:46 +00:00
c6fdffd932
firewall ( #7355 ) - partially revert r21486, start firewall on init again - skip iface hotplug events if base fw is not up yet - get ifname and up state with uci_get_state() in iface setup since the values gathered by scan_interfaces() may be outdated when iface coldplugging happens (observed with pptp) - ignore up state when bringing down interfaces because ifdown reverts state vars before dispatching the iface event - bump package revision
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SVN-Revision: 21502
2010-05-19 00:50:14 +00:00
Jo-Philipp Wich
Travis Kemen