| Commit message (Collapse) | Author | Age | Files | Lines |
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Move common code for XML parsing of data_reg to the new
nft_mxml_data_reg_parse function.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Before:
ip filter output 41
[ payload load 1b @ network header + 9 => reg 1 ]
[ cmp eq reg 1 ]
Now:
ip filter output 41
[ payload load 1b @ network header + 9 => reg 1 ]
[ cmp eq reg 1 0x00000006 ]
^^^^^^^^^^
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch improves default plain text output by mimicing the
default output of libnl-nft.
While at it, several %lu has been translated to use %"PRIu64"
for correctness.
[ I have added the policy to string translation --pablo ]
Signed-off-by: Giuseppe Longo <giuseppelng@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch reduces the XML code in 100 LOC.
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Move common code for XML parsing of expressions to the new
nft_mxml_expr_parse function.
This patch reduces the XML parsing code in 300 LOC.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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While at it, order possible switch cases of _snprintf.
Signed-off-by: Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch renames the <type> node in the exthdr expr to <exthdr_type>.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch renames the node <type> to a more explicit <nat_type>.
This will prevent in the future from confusing other <type> nodes from other exprs.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch fix the buffer offset necesary to print correctly the nat expr in a default output mode.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Use a string for <key> node instead of a number.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch implements using a string for the <type> node.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch implements using a string instead of a number for the <base> node.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The <rev> node is not printed/parsed anymore. It should not be exported,
this is negotiated with the kernel.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Display registers in big endian, so the output will be the same in
different endianness CPU.
<data>0xaabbccdd</data>
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Previous to this patch, the <len> node was 'how many <dataN> nodes we have'.
However, the <len> node means 'how many bytes are in <dataN> nodes'.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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According to net/netfilter/nft_exthdr.c: nft_exthdr_init(),
all of dreg, type, offset and len are mandatory:
if (tb[NFTA_EXTHDR_DREG] == NULL ||
tb[NFTA_EXTHDR_TYPE] == NULL ||
tb[NFTA_EXTHDR_OFFSET] == NULL ||
tb[NFTA_EXTHDR_LEN] == NULL)
return -EINVAL;
So the XML parser must make sure the equivalent nodes exists.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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ct expr uses a string instead of a numerical one in the <key> node.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds an extra dir check.
0 means original.
1 means a reply.
Pablo decided not to include nf_conntrack_tuple_common.h, instead internally
defined them.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch changes the name of XML nodes from <sreg_addr_min_v4> to
<sreg_addr_min>, and <sreg_addr_max_v4> to <sreg_addr_max>, as they
are register numbers, not addresses, so they are protocol independent.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch replaces the string NFT_NAT_{S|D}NAT with {s|d}nat in
the <type> node.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch translates family values to display a string:
* ip if AF_INET
* ip6 if AF_INET6
* bridge if AF_BRIDGE
* arp if 0
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch changes the numerical value of the XML byteorder's <op> node to a string representation.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
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With this patch, all expressions validate that registers are <= NFT_REG_MAX.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The mask and xor must use the same number of data registers.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This is binary layout of the iptables target/match, we can do nothing
with it at this moment. Let's get rid of it.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch fixes the buffer offset of the nat snprintf function
so elements are properly printed.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Introduced in (51370f0 src: add support for XML parsing)
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds the ct expression.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds support for the exthdr expression of nftables that
is implemented in linux/net/netfilter/nft_exthdr.c
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Similar to commit 414ac29.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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It should use 'utmp' instead of 'tmp'.
Signed-off-by: Arturo Borero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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XML printing is supported even if XML parsing is not enabled.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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A minor cosmetic change. Delete the space before '>'.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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These casting were useless.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds capabilities for parsing a XML table/chain/rule.
Some comments:
* The XML data is case sensitive
(so <chain>asd</chain> != <chain>ASD</chain> != <CHAIN>asd</CHAIN>)
* All exported functions receive XML and return an object (table|chain|rule).
* To compile the lib with XML parsing support, run './configure --with-xml-parsing'
* XML parsing is done with libmxml (http://minixml.org). XML parsing depends
on this external lib, this dependency is optional at compile time.
NOTE: expr/target and expr/match binary data are exported.
[ Fixed to compile without --with-xml-parsing --pablo ]
Signed-off-by: Arturo Borrero González <arturo.borrero.glez@gmail.com>
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The caller should add it in case it needs it.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Delete all \n and \t from XML output, any reasonable XML viewer
already does the nifty formatting for us.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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nft_data_reg now is printed in XML according to what it contains
<data> nodes have been also renamed.
Arturo Borrero Gonzalez says:
====================
cmp is using <cmpdata> <cmpdata> has <data_reg></data_reg> which
can also be redundant.
But all around the XML printing (including sets, an incoming patch)
i've been nesting the data_reg into another XML node, so you could
easily see (also the XML parser) the difference between (for example.
in set) nft_set_elem->key and nft_set_elem->data.
As I needed to nest in nft_set_elem I decided to follow a constant
line and do nest all data_reg.
====================
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Arturo Borrero <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Arturo Borrero <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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