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Instruct the python module to load the SONAME versioned shared object.
Normal end-user systems may only have available libnftables.so.1.0.0 and not
libnftables.so which is usually only present in developer systems.
In Debian systems, for example:
% dpkg -L libnftables1 | grep so.1
/usr/lib/x86_64-linux-gnu/libnftables.so.1.0.0
/usr/lib/x86_64-linux-gnu/libnftables.so.1
% dpkg -L libnftables-dev | grep so
/usr/lib/x86_64-linux-gnu/libnftables.so
The "1" is not a magic number, is the SONAME of libnftables in the current
version, as stated in Make_global.am.
Reported-by: Michael Biebl <biebl@debian.org>
Signed-off-by: Arturo Borrero Gonzalez <arturo@netfilter.org>
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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`terse` and `numeric_time` are missing from the `output_flags` dict.
Add them and getters and setters for them.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Phil Sutter <phil@nwl.cc>
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Using jsonschema it is possible to validate any JSON input to make sure
it formally conforms with libnftables JSON API requirements.
Implement a simple validator class for use within a new Nftables class
method 'json_validate' and ship a minimal schema definition along with
the package.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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When calling ffi functions, if the string is unicode we need to convert
to utf-8. Then convert back for any output we receive.
Fixes: 586ad210368b7 ("libnftables: Implement JSON parser")
Signed-off-by: Eric Garver <eric@garver.life>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Instead of guessing which object to update with retrieved handle,
introduce a list containing struct cmd <-> json_t associations. Upon
batch commit, allocated cmd objects are assigned a unique netlink
sequence number. Monitor events contain that number as well, so they may
be associated to the cmd object which triggered them. Using
json_cmd_assoc list the event may in turn be associated to the input's
JSON object which should receive the handle value.
This also fixes incorrect behaviour if JSON input contained "insert"
commands.
Fixes: bb32d8db9a125 ("JSON: Add support for echo option")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Introduce setter/getter methods for each introduced output flag. Ignore
NFT_CTX_OUTPUT_NUMERIC_ALL for now since it's main purpose is for
internal use.
Adjust the script in tests/py accordingly: Due to the good defaults,
only numeric proto output has to be selected - this is not a must, but
allows for the test cases to remain unchanged.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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It will be distributed separately so this worth setting things
correctly.
Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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setup.py is used to build and install the python binding. Call
to setup.py are done in Makefile to proceed to build and
installation.
Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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With libnftables documentation being upstream and one confirmed external
user (nftlb), time to break the API!
First of all, the command buffer passed to nft_run_cmd_from_buffer may
(and should) be const. One should consider it a bug if that function
ever changed it's content.
On the other hand, there is no point in passing the buffer's length as
separate argument: NULL bytes are not expected to occur in the input, so
it is safe to rely upon strlen(). Also, the actual parsers don't require
a buffer length passed to them, either. The only use-case for it is when
reallocating the buffer to append a final newline character, there
strlen() is perfectly sufficient.
Suggested-by: Harald Welte <laforge@gnumonks.org>
Cc: Laura Garcia Liebana <nevola@gmail.com>
Cc: Eric Leblond <eric@regit.org>
Cc: Arturo Borrero Gonzalez <arturo@netfilter.org>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This adds a simple nftables Python class in py/nftables.py which gives
access to libnftables API via ctypes module.
nft-test.py is extended to make use of the above class instead of
calling nft binary. Since command line formatting had to be touched
anyway, this patch also streamlines things a bit by introducing
__str__ methods to classes Table and Chain and making extensive use of
format strings instead of onerously adding all string parts together.
Since the called commands don't see a shell anymore, all shell meta
character escaping done in testcases is removed.
The visible effects of this change are:
* Four new warnings in ip/flowtable.t due to changing objref IDs (will
be addressed later in a patch to libnftnl).
* Reported command line in warning and error messages changed slightly
for obvious reasons.
* Reduction of a full test run's runtime by a factor of four. Status
diff after running with 'time':
< 83 test files, 77 files passed, 1724 unit tests, 0 error, 33 warning
< 87.23user 696.13system 15:11.82elapsed 85%CPU (0avgtext+0avgdata 9604maxresident)k
< 8inputs+36800outputs (0major+35171235minor)pagefaults 0swaps
> 83 test files, 77 files passed, 1724 unit tests, 4 error, 33 warning
> 6.80user 30.18system 3:45.86elapsed 16%CPU (0avgtext+0avgdata 14064maxresident)k
> 0inputs+35808outputs (0major+2874minor)pagefaults 0swaps
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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