History log of /net/netfilter/xt_dscp.c
Revision Date Author Comments
62fc8051083a334578c3f4b3488808f210b4565f 07-Jul-2009 Jan Engelhardt <jengelh@medozas.de> netfilter: xtables: deconstify struct xt_action_param for matches

In future, layer-3 matches will be an xt module of their own, and
need to set the fragoff and thoff fields. Adding more pointers would
needlessy increase memory requirements (esp. so for 64-bit, where
pointers are wider).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
4b560b447df83368df44bd3712c0c39b1d79ba04 05-Jul-2009 Jan Engelhardt <jengelh@medozas.de> netfilter: xtables: substitute temporary defines by final name

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
4a5a5c73b7cfee46a0b1411903cfa0dea532deec 19-Mar-2010 Jan Engelhardt <jengelh@medozas.de> netfilter: xtables: slightly better error reporting

When extended status codes are available, such as ENOMEM on failed
allocations, or subsequent functions (e.g. nf_ct_get_l3proto), passing
them up to userspace seems like a good idea compared to just always
EINVAL.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
bd414ee605ff3ac5fcd79f57269a897879ee4cde 23-Mar-2010 Jan Engelhardt <jengelh@medozas.de> netfilter: xtables: change matches to return error code

The following semantic patch does part of the transformation:
// <smpl>
@ rule1 @
struct xt_match ops;
identifier check;
@@
ops.checkentry = check;

@@
identifier rule1.check;
@@
check(...) { <...
-return true;
+return 0;
...> }

@@
identifier rule1.check;
@@
check(...) { <...
-return false;
+return -EINVAL;
...> }
// </smpl>

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
b0f38452ff73da7e9e0ddc68cd5c6b93c897ca0d 19-Mar-2010 Jan Engelhardt <jengelh@medozas.de> netfilter: xtables: change xt_match.checkentry return type

Restore function signatures from bool to int so that we can report
memory allocation failures or similar using -ENOMEM rather than
always having to pass -EINVAL back.

This semantic patch may not be too precise (checking for functions
that use xt_mtchk_param rather than functions referenced by
xt_match.checkentry), but reviewed, it produced the intended result.

// <smpl>
@@
type bool;
identifier check, par;
@@
-bool check
+int check
(struct xt_mtchk_param *par) { ... }
// </smpl>

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
8bee4bad03c5b601bd6cea123c31025680587ccc 17-Mar-2010 Jan Engelhardt <jengelh@medozas.de> netfilter: xt extensions: use pr_<level>

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
aa5fa3185791aac71c9172d4fda3e8729164b5d1 18-Mar-2010 Jan Engelhardt <jengelh@medozas.de> netfilter: xtables: make use of caller family rather than match family

The matches can have .family = NFPROTO_UNSPEC, and though that is not
the case for the touched modules, it seems better to just use the
nfproto from the caller.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
7cd1837b5d24417eca667d674a97bea936849785 12-Jun-2009 Jan Engelhardt <jengelh@medozas.de> netfilter: xtables: remove xt_TOS v0

Superseded by xt_TOS v1 (v2.6.24-2396-g5c350e5).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
9b4fce7a3508a9776534188b6065b206a9608ccf 08-Oct-2008 Jan Engelhardt <jengelh@medozas.de> netfilter: xtables: move extension arguments into compound structure (2/6)

This patch does this for match extensions' checkentry functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
f7108a20dee44e5bb037f9e48f6a207b42e6ae1c 08-Oct-2008 Jan Engelhardt <jengelh@medozas.de> netfilter: xtables: move extension arguments into compound structure (1/6)

The function signatures for Xtables extensions have grown over time.
It involves a lot of typing/replication, and also a bit of stack space
even if they are not used. Realize an NFWS2008 idea and pack them into
structs. The skb remains outside of the struct so gcc can continue to
apply its optimizations.

This patch does this for match extensions' match functions.

A few ambiguities have also been addressed. The "offset" parameter for
example has been renamed to "fragoff" (there are so many different
offsets already) and "protoff" to "thoff" (there is more than just one
protocol here, so clarify).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
ee999d8b9573df1b547aacdc6d79f86eb79c25cd 08-Oct-2008 Jan Engelhardt <jengelh@medozas.de> netfilter: x_tables: use NFPROTO_* in extensions

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
2ae15b64e6a1608c840c60df38e8e5eef7b2b8c3 15-Jan-2008 Jan Engelhardt <jengelh@computergmbh.de> [NETFILTER]: Update modules' descriptions

Updates the MODULE_DESCRIPTION() tags for all Netfilter modules,
actually describing what the module does and not just
"netfilter XYZ target".

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
f1095ab51d4297d4a84b64a65c71054183a73486 05-Dec-2007 Jan Engelhardt <jengelh@computergmbh.de> [NETFILTER]: IPv6 capable xt_tos v1 match

Extends the xt_dscp match by xt_tos v1 to add support for selectively
matching any bit in the IPv4 TOS and IPv6 Priority fields. (ipt_tos
and xt_dscp only accepted a limited range of possible values.)

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
c3b33e6a2cdefba38d83442ebae2ee42e853ea51 05-Dec-2007 Jan Engelhardt <jengelh@computergmbh.de> [NETFILTER]: Merge ipt_tos into xt_dscp

Merge ipt_tos into xt_dscp.

Merge ipt_tos (tos v0 match) into xt_dscp. They both match on the same
field in the IPv4 header, so it seems reasonable to keep them in one
piece. This is part one of the implicit 4-patch series to move tos to
xtables and extend it by IPv6.

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
d3c5ee6d545b5372fd525ebe16988a5b6efeceb0 05-Dec-2007 Jan Engelhardt <jengelh@computergmbh.de> [NETFILTER]: x_tables: consistent and unique symbol names

Give all Netfilter modules consistent and unique symbol names.

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
9f15c5302de4e8b0aac7ca24c36bf26a7fe1a513 08-Jul-2007 Patrick McHardy <kaber@trash.net> [NETFILTER]: x_tables: mark matches and targets __read_mostly

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
ccb79bdce71f2c04cfa9bfcbaf4d37e2f963d684 08-Jul-2007 Jan Engelhardt <jengelh@gmx.de> [NETFILTER]: x_tables: switch xt_match->checkentry to bool

Switch the return type of match functions to boolean

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
1d93a9cbad608f6398ba6c5b588c504ccd35a2ca 08-Jul-2007 Jan Engelhardt <jengelh@gmx.de> [NETFILTER]: x_tables: switch xt_match->match to bool

Switch the return type of match functions to boolean

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
cff533ac12494fa002e2c46acc94d670e5f636a2 08-Jul-2007 Jan Engelhardt <jengelh@gmx.de> [NETFILTER]: x_tables: switch hotdrop to bool

Switch the "hotdrop" variables to boolean

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
1b53d9042c04b8eb875d02e65792e9884efc3784 23-Mar-2007 Patrick McHardy <kaber@trash.net> [NETFILTER]: Remove changelogs and CVS IDs

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
0660e03f6b18f19b6bbafe7583265a51b90daf36 26-Apr-2007 Arnaldo Carvalho de Melo <acme@redhat.com> [SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h

Now the skb->nh union has just one member, .raw, i.e. it is just like the
skb->mac union, strange, no? I'm just leaving it like that till the transport
layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or
->mac_header_offset?), ditto for ->{h,nh}.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
eddc9ec53be2ecdbf4efe0efd4a83052594f0ac0 21-Apr-2007 Arnaldo Carvalho de Melo <acme@redhat.com> [SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
efa741656e9ebf5fd6e0432b0d1b3c7f156392d3 22-Aug-2006 Patrick McHardy <kaber@trash.net> [NETFILTER]: x_tables: remove unused size argument to check/destroy functions

The size is verified by x_tables and isn't needed by the modules anymore.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
4470bbc749e5551cce914529309456f631e25120 22-Aug-2006 Patrick McHardy <kaber@trash.net> [NETFILTER]: x_tables: make use of mass registation helpers

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
9ba1627617d396135a4d679542a3623d5819e628 22-Aug-2006 Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> [NETFILTER]: x_tables: replace IPv4 dscp match by address family independent version

This replaces IPv4 dscp match by address family independent version.
This also
- utilizes dsfield.h to get the DS field in IPv4/IPv6 header, and
- checks for the DSCP value from user space.
- fixes Kconfig help text.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>