77dda8d67a
firewall: - introduce per-section "option enabled" which defaults to "1" - useful to disable rules or zones without having to delete them - annotate default traffic rules with names - bump version
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SVN-Revision: 29577
13 years ago
50a22f4f9e
firewall: relocate TCPMSS rules into mangle table, add code to selectively clear them out again
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SVN-Revision: 28669
13 years ago
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
13 years ago
204bf6e5fe
firewall: prevent ip6tables -t nat rules ( #10265 )
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SVN-Revision: 28535
13 years ago
69df551be3
firewall: fix another instance of unquoted "*"
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SVN-Revision: 28529
13 years ago
9a61d9e513
firewall: fix possible expansion of "*" when rules with "option src *" are processed
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SVN-Revision: 28527
13 years ago
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
13 years ago
995face56d
firewall: make ESTABLISHED,RELATED rules match before INVALID, use conntrack instead of state match ( #10038 )
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SVN-Revision: 28148
13 years ago
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
13 years ago
90ac92e8be
firewall: fix serious bug in state var handling ( #9746 )
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SVN-Revision: 27711
14 years ago
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
14 years ago
a92ed1808c
firewall: make sure that -m mac is used with --mac-source, follow up to r27508
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SVN-Revision: 27519
14 years ago
ca7383e701
firewall: also correct another variable missed in previous commit
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SVN-Revision: 27508
14 years ago
c8531fca5d
firewall: fix wrong variable names for protocol command line parameter - were missed during r27500
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SVN-Revision: 27507
14 years ago
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
14 years ago
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
14 years ago
8f0fb81dfe
firewall: restore local port relocation ability from r26617
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SVN-Revision: 27318
14 years ago
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
14 years ago
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
14 years ago
c014101d73
firewall: allow symbolic names of interfaces and aliases in masq_src and masq_dest
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SVN-Revision: 27196
14 years ago
2e9e4c435f
firewall: revert accidential committed changes from r26805
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SVN-Revision: 26806
14 years ago
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
14 years ago
2a386cee99
firewall: prevent excessive uci state data aggregation ( #9152 )
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SVN-Revision: 26740
14 years ago
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
14 years ago
af82471525
firewall: prevent duplicate values in interface state vars
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SVN-Revision: 26382
14 years ago
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
14 years ago
1ca64678bb
firewall: fix rule generation for v4 or v6 only zones ( #8955 )
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SVN-Revision: 25813
14 years ago
04b20727d8
firewall: fix wrong rule order if multiple protocols are used
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SVN-Revision: 25179
14 years ago
a43f5b5038
firewall: insert SNAT and DNAT rules according to the order of the configuration file ( #8052 )
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SVN-Revision: 23318
14 years ago
1a0d7a3612
firewall: fix chain selection logic, option dest must be ignored for notrack targets
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SVN-Revision: 23143
14 years ago
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
14 years ago
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
14 years ago
f90328f26e
firewall: make invalid redirects and duplicate zones non-fatal, print a notice and discard them
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SVN-Revision: 23080
14 years ago
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
14 years ago
1fe50da4bb
firewall: deliver remove hotplug events for all active zones/networks when restarting the firewall
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SVN-Revision: 23062
14 years ago
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
14 years ago
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
14 years ago
eb79296cc1
firewall: introduce SNAT support for redirect sections
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SVN-Revision: 22937
14 years ago
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
14 years ago
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
14 years ago
e62a9791ee
firewall: allow redirecting only destination port ( #7197 )
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SVN-Revision: 22227
15 years ago
d6d1dd47d3
firewall: fix another notrack related bug
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SVN-Revision: 22218
15 years ago
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
15 years ago
48c357ec01
firewall: - support alias ifnames different from parent ifname - properly handle multiple subnets per alias (v4+v6)
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SVN-Revision: 21656
15 years ago
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
15 years ago
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
15 years ago
e25fbfccdf
firewall: fix support for netranges in redirect and rule sections
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SVN-Revision: 21640
15 years ago
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
15 years ago
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
15 years ago
3ffd27f905
firewall: implement disable_ipv6 uci option
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SVN-Revision: 21503
15 years ago
Jo-Philipp Wich