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This warning has been there for quite some time, fix it by relaxing the
const type checking.
callback.c: In function `__expect_callback':
callback.c:30: warning: passing argument 2 of `__parse_expect' from incompatible pointer type
../../include/internal/prototypes.h:32: note: expected `const struct nfattr **' but argument is of type `struct nfattr **'
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add Patrick's zone support for libnetfilter_conntrack.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds the missing bits to support the modification of the
TCP window scale factor in a conntrack entry. The kernel support
has been already there since 2.6.23.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch the new expectation callback interface. This change is
like 20ed81b10714dfe78e31e9721e2d4f42b4beabb2 but related to
expectations. The netlink message contains the portID that is useful
to identify the origin of the message.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch renames the attribute constant to access the DCCP
handshake sequence number that was recently committed in
19f35b21dbe2bb4386eeced4e0d87f3b2e1dd8bf. No release with
the old name has been done, so no problems about backward
compatibility although it'd be better if I don't push changes
that I have to modify very soon afterwards.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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From: Pablo Neira Ayuso <pablo@netfilter.org>
This patch adds the support for the DCCP sequence number tracking
that is included in the upcoming Linux kernel 2.6.31.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds support to auto-generate BSF code for IPv6. It
requires a Linux kernel >= 2.6.29. The maximum number of addresses
is limited to 20 (12 BSF lines per IPv6 address comparison). I am
not sure that to remove this limit is useful given that oprofile
does not show very good numbers for very large (in terms of lines)
filters. This completes one feature that is available in IPv4 but
that was missing in IPv6.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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xt_helper uses a length size of 30 bytes. However, no helper name in
the tree has exceeded 16 bytes length so far. Since 2.6.29, the
maximum length accepted limited to 16 bytes, this limit is enforced
during module loading. With this patch we save bytes in the
conntrack objects.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds nfct_callback_register2() and nfct_callback_unregister2()
that allows to register a callback function with a new callback interface
that includes the Netlink message. This fixes an early design error.
This is not nice but it is the only way to resolve this problem without
breaking backward (I don't like function versioning, it is messy).
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds DCCP role attribute support. This needs Linux
kernel >= 2.6.30.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch merges duplicated protocol string definitions in the
snprintf infrastructure. I have also fixed the size of the string
array. This patch is a cleanup.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds initial DCCP support for libnetfilter_conntrack.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch removes the first API version which was scheduled in
2007. That API had several major limitations that the new one
solved. I don't know of any known existing client of this old
API.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch fixes a missing stack.h file in Makefile.am. Maintaining
a Makefile.am for the header files sucks a lot.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch reworks the BSF automatic generation code. This
feature needs more love and it has several limitations like
that the maximum number of IPs are 127 due to BSF code
restrictions. See this patch as a first step forward.
This patch also adds the stack data type, which is used to
resolve jump dynamically instead of the previous static
approach.
This patch also includes fixes in the limitations, previous
calculations were wrong.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This new API allows you to set and get some logical set of
attributes. This is not intended to replace the existing
per-attribute get/set API but to provide more efficient way
to get/set certain attributes. This change includes an example
file (conntrack_grp_create.c) of the use of the attribute group API.
See ATTR_GRP_* for more information on the existing groups.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch introduces likely() and unlikely() that use
__builtin_expect to assist the compiler in the branch decisions.
I am assuming that we have no clients of libnetfilter_conntrack
that use gcc < 2.96.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch replaces the use of switch by indirect function calls.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds support for explicit helper assignation. This support
will not be of any help without the appropriate kernel support that will
go into the Linux kernel 2.6.29 -sic-.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch cleanups the internal headers by splitting them into several
logical pieces.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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