diff options
Diffstat (limited to 'net/netfilter/Kconfig')
| -rw-r--r-- | net/netfilter/Kconfig | 51 |
1 files changed, 48 insertions, 3 deletions
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index 80107d4909c5..253fce3ad2d3 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -235,6 +235,19 @@ config NF_CONNTRACK_PPTP To compile it as a module, choose M here. If unsure, say N. +config NF_CONNTRACK_SANE + tristate "SANE protocol support (EXPERIMENTAL)" + depends on EXPERIMENTAL && NF_CONNTRACK + help + SANE is a protocol for remote access to scanners as implemented + by the 'saned' daemon. Like FTP, it uses separate control and + data connections. + + With this module you can support SANE on a connection tracking + firewall. + + To compile it as a module, choose M here. If unsure, say N. + config NF_CONNTRACK_SIP tristate "SIP protocol support (EXPERIMENTAL)" depends on EXPERIMENTAL && NF_CONNTRACK @@ -289,7 +302,9 @@ config NETFILTER_XT_TARGET_CONNMARK tristate '"CONNMARK" target support' depends on NETFILTER_XTABLES depends on IP_NF_MANGLE || IP6_NF_MANGLE - depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK) + depends on IP_NF_CONNTRACK || NF_CONNTRACK + select IP_NF_CONNTRACK_MARK if IP_NF_CONNTRACK + select NF_CONNTRACK_MARK if NF_CONNTRACK help This option adds a `CONNMARK' target, which allows one to manipulate the connection mark value. Similar to the MARK target, but @@ -382,6 +397,32 @@ config NETFILTER_XT_TARGET_CONNSECMARK To compile it as a module, choose M here. If unsure, say N. +config NETFILTER_XT_TARGET_TCPMSS + tristate '"TCPMSS" target support' + depends on NETFILTER_XTABLES && (IPV6 || IPV6=n) + ---help--- + This option adds a `TCPMSS' target, which allows you to alter the + MSS value of TCP SYN packets, to control the maximum size for that + connection (usually limiting it to your outgoing interface's MTU + minus 40). + + This is used to overcome criminally braindead ISPs or servers which + block ICMP Fragmentation Needed packets. The symptoms of this + problem are that everything works fine from your Linux + firewall/router, but machines behind it can never exchange large + packets: + 1) Web browsers connect, then hang with no data received. + 2) Small mail works fine, but large emails hang. + 3) ssh works fine, but scp hangs after initial handshaking. + + Workaround: activate this option and add a rule to your firewall + configuration like: + + iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN \ + -j TCPMSS --clamp-mss-to-pmtu + + To compile it as a module, choose M here. If unsure, say N. + config NETFILTER_XT_MATCH_COMMENT tristate '"comment" match support' depends on NETFILTER_XTABLES @@ -395,7 +436,9 @@ config NETFILTER_XT_MATCH_COMMENT config NETFILTER_XT_MATCH_CONNBYTES tristate '"connbytes" per-connection counter match support' depends on NETFILTER_XTABLES - depends on (IP_NF_CONNTRACK && IP_NF_CT_ACCT) || (NF_CT_ACCT && NF_CONNTRACK) + depends on IP_NF_CONNTRACK || NF_CONNTRACK + select IP_NF_CT_ACCT if IP_NF_CONNTRACK + select NF_CT_ACCT if NF_CONNTRACK help This option adds a `connbytes' match, which allows you to match the number of bytes and/or packets for each direction within a connection. @@ -406,7 +449,9 @@ config NETFILTER_XT_MATCH_CONNBYTES config NETFILTER_XT_MATCH_CONNMARK tristate '"connmark" connection mark match support' depends on NETFILTER_XTABLES - depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK) + depends on IP_NF_CONNTRACK || NF_CONNTRACK + select IP_NF_CONNTRACK_MARK if IP_NF_CONNTRACK + select NF_CONNTRACK_MARK if NF_CONNTRACK help This option adds a `connmark' match, which allows you to match the connection mark value previously set for the session by `CONNMARK'. |