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SubjectRe: [2.4 patch] netfilter Configure.help cleanup
On Wed, Jul 02, 2003 at 04:25:05PM -0300, Marcelo Tosatti wrote:
>
> Make that go through davem, please.

Hi Dave,

the patch below does the following changes to the netfilter entries in
Configure.help in 2.4.22-pre2:
- order similar to net/ipv4/netfilter/Config.in
- remove useless short descriptions above CONFIG_*
- added CONFIG_IP_NF_MATCH_RECENT entry (stolen from 2.5)

It still applies against 2.4.22-pre6.

Please apply
Adrian



--- linux-2.4.22-pre2-full/Documentation/Configure.help.old 2003-06-28 00:55:54.000000000 +0200
+++ linux-2.4.22-pre2-full/Documentation/Configure.help 2003-06-28 01:20:11.000000000 +0200
@@ -2511,7 +2511,6 @@
You can say Y here if you want to get additional messages useful in
debugging the netfilter code.

-Connection tracking (required for masq/NAT)
CONFIG_IP_NF_CONNTRACK
Connection tracking keeps a record of what packets have passed
through your machine, in order to figure out how they are related
@@ -2525,7 +2524,14 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-Amanda protocol support
+CONFIG_IP_NF_FTP
+ Tracking FTP connections is problematic: special helpers are
+ required for tracking them, and doing masquerading and other forms
+ of Network Address Translation on them.
+
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `Y'.
+
CONFIG_IP_NF_AMANDA
If you are running the Amanda backup package (http://www.amanda.org/)
on this machine or machines that will be MASQUERADED through this
@@ -2537,8 +2543,15 @@
If you want to compile it as a module, say M here and read
Documentation/modules.txt. If unsure, say `N'.

+CONFIG_IP_NF_TFTP
+ TFTP connection tracking helper, this is required depending
+ on how restrictive your ruleset is.
+ If you are using a tftp client behind -j SNAT or -j MASQUERADING
+ you will need this.
+
+ If you want to compile it as a module, say M here and read
+ Documentation/modules.txt. If unsure, say `Y'.

-IRC Send/Chat protocol support
CONFIG_IP_NF_IRC
There is a commonly-used extension to IRC called
Direct Client-to-Client Protocol (DCC). This enables users to send
@@ -2552,26 +2565,6 @@
If you want to compile it as a module, say 'M' here and read
Documentation/modules.txt. If unsure, say 'N'.

-TFTP protocol support
-CONFIG_IP_NF_TFTP
- TFTP connection tracking helper, this is required depending
- on how restrictive your ruleset is.
- If you are using a tftp client behind -j SNAT or -j MASQUERADING
- you will need this.
-
- If you want to compile it as a module, say M here and read
- Documentation/modules.txt. If unsure, say `Y'.
-
-FTP protocol support
-CONFIG_IP_NF_FTP
- Tracking FTP connections is problematic: special helpers are
- required for tracking them, and doing masquerading and other forms
- of Network Address Translation on them.
-
- If you want to compile it as a module, say M here and read
- <file:Documentation/modules.txt>. If unsure, say `Y'.
-
-User space queueing via NETLINK
CONFIG_IP_NF_QUEUE
Netfilter has the ability to queue packets to user space: the
netlink device can be used to access them using this driver.
@@ -2579,7 +2572,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-IP tables support (required for filtering/masq/NAT)
CONFIG_IP_NF_IPTABLES
iptables is a general, extensible packet identification framework.
The packet filtering and full NAT (masquerading, port forwarding,
@@ -2589,7 +2581,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-limit match support
CONFIG_IP_NF_MATCH_LIMIT
limit matching allows you to control the rate at which a rule can be
matched: mainly useful in combination with the LOG target ("LOG
@@ -2598,7 +2589,13 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-skb->pkt_type packet match support
+CONFIG_IP_NF_MATCH_MAC
+ MAC matching allows you to match packets based on the source
+ Ethernet address of the packet.
+
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.
+
CONFIG_IP_NF_MATCH_PKTTYPE
This patch allows you to match packet in accrodance
to its "class", eg. BROADCAST, MULTICAST, ...
@@ -2609,15 +2606,6 @@
If you want to compile it as a module, say M here and read
Documentation/modules.txt. If unsure, say `N'.

-MAC address match support
-CONFIG_IP_NF_MATCH_MAC
- MAC matching allows you to match packets based on the source
- Ethernet address of the packet.
-
- If you want to compile it as a module, say M here and read
- <file:Documentation/modules.txt>. If unsure, say `N'.
-
-Netfilter MARK match support
CONFIG_IP_NF_MATCH_MARK
Netfilter mark matching allows you to match packets based on the
`nfmark' value in the packet. This can be set by the MARK target
@@ -2626,7 +2614,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-Multiple port match support
CONFIG_IP_NF_MATCH_MULTIPORT
Multiport matching allows you to match TCP or UDP packets based on
a series of source or destination ports: normally a rule can only
@@ -2635,31 +2622,30 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-TTL match support
-CONFIG_IP_NF_MATCH_TTL
- This adds CONFIG_IP_NF_MATCH_TTL option, which enabled the user
- to match packets by their TTL value.
+CONFIG_IP_NF_MATCH_TOS
+ TOS matching allows you to match packets based on the Type Of
+ Service fields of the IP packet.

If you want to compile it as a module, say M here and read
- Documentation/modules.txt. If unsure, say `N'.
+ <file:Documentation/modules.txt>. If unsure, say `N'.

-LENGTH match support
-CONFIG_IP_NF_MATCH_LENGTH
- This option allows you to match the length of a packet against a
- specific value or range of values.
+CONFIG_IP_NF_MATCH_RECENT
+ This match is used for creating one or many lists of recently
+ used addresses and then matching against that/those list(s).
+
+ Short options are available by using 'iptables -m recent -h'
+ Official Website: <http://snowman.net/projects/ipt_recent/>

If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-AH/ESP match support
-CONFIG_IP_NF_MATCH_AH_ESP
- These two match extensions (`ah' and `esp') allow you to match a
- range of SPIs inside AH or ESP headers of IPSec packets.
+CONFIG_IP_NF_MATCH_ECN
+ This option adds a `ECN' match, which allows you to match against
+ the IPv4 and TCP header ECN fields.

If you want to compile it as a module, say M here and read
Documentation/modules.txt. If unsure, say `N'.

-DSCP match support
CONFIG_IP_NF_MATCH_DSCP
This option adds a `DSCP' match, which allows you to match against
the IPv4 header DSCP field (DSCP codepoint).
@@ -2669,39 +2655,42 @@
If you want to compile it as a module, say M here and read
Documentation/modules.txt. If unsure, say `N'.

-
-
-ECN match support
-CONFIG_IP_NF_MATCH_ECN
- This option adds a `ECN' match, which allows you to match against
- the IPv4 and TCP header ECN fields.
+CONFIG_IP_NF_MATCH_AH_ESP
+ These two match extensions (`ah' and `esp') allow you to match a
+ range of SPIs inside AH or ESP headers of IPSec packets.

If you want to compile it as a module, say M here and read
Documentation/modules.txt. If unsure, say `N'.

-
-
-TOS match support
-CONFIG_IP_NF_MATCH_TOS
- TOS matching allows you to match packets based on the Type Of
- Service fields of the IP packet.
+CONFIG_IP_NF_MATCH_LENGTH
+ This option allows you to match the length of a packet against a
+ specific value or range of values.

If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-conntrack match support
-CONFIG_IP_NF_MATCH_CONNTRACK
- This is a general conntrack match module, a superset of the state match.
-
- It allows matching on additional conntrack information, which is
- useful in complex configurations, such as NAT gateways with multiple
- internet links or tunnels.
+CONFIG_IP_NF_MATCH_TTL
+ This adds CONFIG_IP_NF_MATCH_TTL option, which enabled the user
+ to match packets by their TTL value.

If you want to compile it as a module, say M here and read
Documentation/modules.txt. If unsure, say `N'.

+CONFIG_IP_NF_MATCH_TCPMSS
+ This option adds a `tcpmss' match, which allows you to examine the
+ MSS value of TCP SYN packets, which control the maximum packet size
+ for that connection.
+
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.
+
+CONFIG_IP_NF_MATCH_HELPER
+ Helper matching allows you to match packets in dynamic connections
+ tracked by a conntrack-helper, ie. ip_conntrack_ftp
+
+ If you want to compile it as a module, say M here and read
+ Documentation/modules.txt. If unsure, say `Y'.

-Connection state match support
CONFIG_IP_NF_MATCH_STATE
Connection state matching allows you to match packets based on their
relationship to a tracked connection (ie. previous packets). This
@@ -2710,7 +2699,16 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-Unclean match support
+CONFIG_IP_NF_MATCH_CONNTRACK
+ This is a general conntrack match module, a superset of the state match.
+
+ It allows matching on additional conntrack information, which is
+ useful in complex configurations, such as NAT gateways with multiple
+ internet links or tunnels.
+
+ If you want to compile it as a module, say M here and read
+ Documentation/modules.txt. If unsure, say `N'.
+
CONFIG_IP_NF_MATCH_UNCLEAN
Unclean packet matching matches any strange or invalid packets, by
looking at a series of fields in the IP, TCP, UDP and ICMP headers.
@@ -2718,7 +2716,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-Owner match support
CONFIG_IP_NF_MATCH_OWNER
Packet owner matching allows you to match locally-generated packets
based on who created them: the user, group, process or session.
@@ -2726,7 +2723,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-Packet filtering
CONFIG_IP_NF_FILTER
Packet filtering defines a table `filter', which has a series of
rules for simple packet filtering at local input, forwarding and
@@ -2735,7 +2731,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-REJECT target support
CONFIG_IP_NF_TARGET_REJECT
The REJECT target allows a filtering rule to specify that an ICMP
error should be issued in response to an incoming packet, rather
@@ -2744,7 +2739,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-MIRROR target support
CONFIG_IP_NF_TARGET_MIRROR
The MIRROR target allows a filtering rule to specify that an
incoming packet should be bounced back to the sender.
@@ -2752,20 +2746,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-Local NAT support
-CONFIG_IP_NF_NAT_LOCAL
- This option enables support for NAT of locally originated connections.
- Enable this if you need to use destination NAT on connections
- originating from local processes on the nat box itself.
-
- Please note that you will need a recent version (>= 1.2.6a)
- of the iptables userspace program in order to use this feature.
- See <http://www.iptables.org/> for download instructions.
-
- If unsure, say 'N'.
-
-
-Full NAT (Network Address Translation)
CONFIG_IP_NF_NAT
The Full NAT option allows masquerading, port forwarding and other
forms of full Network Address Port Translation. It is controlled by
@@ -2774,7 +2754,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-MASQUERADE target support
CONFIG_IP_NF_TARGET_MASQUERADE
Masquerading is a special case of NAT: all outgoing connections are
changed to seem to come from a particular interface's address, and
@@ -2785,9 +2764,27 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-Basic SNMP-ALG support
-CONFIG_IP_NF_NAT_SNMP_BASIC
+CONFIG_IP_NF_TARGET_REDIRECT
+ REDIRECT is a special case of NAT: all incoming connections are
+ mapped onto the incoming interface's address, causing the packets to
+ come to the local machine instead of passing through. This is
+ useful for transparent proxies.
+
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.

+CONFIG_IP_NF_NAT_LOCAL
+ This option enables support for NAT of locally originated connections.
+ Enable this if you need to use destination NAT on connections
+ originating from local processes on the nat box itself.
+
+ Please note that you will need a recent version (>= 1.2.6a)
+ of the iptables userspace program in order to use this feature.
+ See <http://www.iptables.org/> for download instructions.
+
+ If unsure, say 'N'.
+
+CONFIG_IP_NF_NAT_SNMP_BASIC
This module implements an Application Layer Gateway (ALG) for
SNMP payloads. In conjunction with NAT, it allows a network
management system to access multiple private networks with
@@ -2799,17 +2796,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-REDIRECT target support
-CONFIG_IP_NF_TARGET_REDIRECT
- REDIRECT is a special case of NAT: all incoming connections are
- mapped onto the incoming interface's address, causing the packets to
- come to the local machine instead of passing through. This is
- useful for transparent proxies.
-
- If you want to compile it as a module, say M here and read
- <file:Documentation/modules.txt>. If unsure, say `N'.
-
-Packet mangling
CONFIG_IP_NF_MANGLE
This option adds a `mangle' table to iptables: see the man page for
iptables(8). This table is used for various packet alterations
@@ -2818,25 +2804,17 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-DSCP target support
-CONFIG_IP_NF_TARGET_DSCP
- This option adds a `DSCP' target, which allows you to create rules in
- the iptables mangle table. The selected packet has the DSCP field set
- to the hex value provided on the command line; unlike the TOS target
- which will only set the legal values within ip.h.
-
- The DSCP field can be set to any value between 0x0 and 0x4f. It does
- take into account that bits 6 and 7 are used by ECN.
+CONFIG_IP_NF_TARGET_TOS
+ This option adds a `TOS' target, which allows you to create rules in
+ the `mangle' table which alter the Type Of Service field of an IP
+ packet prior to routing.

If you want to compile it as a module, say M here and read
- Documentation/modules.txt. If unsure, say `N'.
-
-
+ <file:Documentation/modules.txt>. If unsure, say `N'.

-ECN target support
CONFIG_IP_NF_TARGET_ECN
This option adds a `ECN' target, which can be used in the iptables mangle
- table.
+ table.

You can use this target to remove the ECN bits from the IPv4 header of
an IP packet. This is particularly useful, if you need to work around
@@ -2846,18 +2824,18 @@
If you want to compile it as a module, say M here and read
Documentation/modules.txt. If unsure, say `N'.

-
+CONFIG_IP_NF_TARGET_DSCP
+ This option adds a `DSCP' target, which allows you to create rules in
+ the iptables mangle table. The selected packet has the DSCP field set
+ to the hex value provided on the command line; unlike the TOS target
+ which will only set the legal values within ip.h.

-TOS target support
-CONFIG_IP_NF_TARGET_TOS
- This option adds a `TOS' target, which allows you to create rules in
- the `mangle' table which alter the Type Of Service field of an IP
- packet prior to routing.
+ The DSCP field can be set to any value between 0x0 and 0x4f. It does
+ take into account that bits 6 and 7 are used by ECN.

If you want to compile it as a module, say M here and read
- <file:Documentation/modules.txt>. If unsure, say `N'.
+ Documentation/modules.txt. If unsure, say `N'.

-MARK target support
CONFIG_IP_NF_TARGET_MARK
This option adds a `MARK' target, which allows you to create rules
in the `mangle' table which alter the netfilter mark (nfmark) field
@@ -2869,7 +2847,25 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-TCPMSS target support
+CONFIG_IP_NF_TARGET_LOG
+ This option adds a `LOG' target, which allows you to create rules in
+ any iptables table which records the packet header to the syslog.
+
+ If you want to compile it as a module, say M here and read
+ <file:Documentation/modules.txt>. If unsure, say `N'.
+
+CONFIG_IP_NF_TARGET_ULOG
+ This option adds a `ULOG' target, which allows you to create rules in
+ any iptables table. The packet is passed to a userspace logging
+ daemon using netlink multicast sockets; unlike the LOG target
+ which can only be viewed through syslog.
+
+ The appropriate userspace logging daemon (ulogd) may be obtained from
+ <http://www.gnumonks.org/projects/ulogd>
+
+ If you want to compile it as a module, say M here and read
+ Documentation/modules.txt. If unsure, say `N'.
+
CONFIG_IP_NF_TARGET_TCPMSS
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
@@ -2894,45 +2890,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-Helper match support
-CONFIG_IP_NF_MATCH_HELPER
- Helper matching allows you to match packets in dynamic connections
- tracked by a conntrack-helper, ie. ip_conntrack_ftp
-
- If you want to compile it as a module, say M here and read
- Documentation/modules.txt. If unsure, say `Y'.
-
-TCPMSS match support
-CONFIG_IP_NF_MATCH_TCPMSS
- This option adds a `tcpmss' match, which allows you to examine the
- MSS value of TCP SYN packets, which control the maximum packet size
- for that connection.
-
- If you want to compile it as a module, say M here and read
- <file:Documentation/modules.txt>. If unsure, say `N'.
-
-ULOG target support
-CONFIG_IP_NF_TARGET_ULOG
- This option adds a `ULOG' target, which allows you to create rules in
- any iptables table. The packet is passed to a userspace logging
- daemon using netlink multicast sockets; unlike the LOG target
- which can only be viewed through syslog.
-
- The appropriate userspace logging daemon (ulogd) may be obtained from
- <http://www.gnumonks.org/projects/ulogd>
-
- If you want to compile it as a module, say M here and read
- Documentation/modules.txt. If unsure, say `N'.
-
-LOG target support
-CONFIG_IP_NF_TARGET_LOG
- This option adds a `LOG' target, which allows you to create rules in
- any iptables table which records the packet header to the syslog.
-
- If you want to compile it as a module, say M here and read
- <file:Documentation/modules.txt>. If unsure, say `N'.
-
-ipchains (2.2-style) support
CONFIG_IP_NF_COMPAT_IPCHAINS
This option places ipchains (with masquerading and redirection
support) back into the kernel, using the new netfilter
@@ -2943,7 +2900,6 @@
If you want to compile it as a module, say M here and read
<file:Documentation/modules.txt>. If unsure, say `N'.

-ipfwadm (2.0-style) support
CONFIG_IP_NF_COMPAT_IPFWADM
This option places ipfwadm (with masquerading and redirection
support) back into the kernel, using the new netfilter
-
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