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This patch enables the user to specify a comment when adding a chain.
Relies on kernel space supporting userdata for chains.
> nft add table ip filter
> nft add chain ip filter input { comment "test"\; type filter hook input priority 0\; policy accept\; }
> list ruleset
table ip filter {
chain input {
comment "test"
type filter hook input priority filter; policy accept;
}
}
Signed-off-by: Jose M. Guisado Gomez <guigom@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Before this patch grammar supported specifying multiple comments, and
only the last value would be assigned.
This patch adds a function to test if an attribute is already assigned
and, if so, calls erec_queue with this attribute location.
Use this function in order to check for duplication (or more) of comments
for actions that support it.
> nft add table inet filter { flags "dormant"\; comment "test"\; comment "another"\;}
Error: You can only specify this once. This statement is duplicated.
add table inet filter { flags dormant; comment test; comment another;}
^^^^^^^^^^^^^^^^
Signed-off-by: Jose M. Guisado Gomez <guigom@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Enables specifying an optional comment when declaring named objects. The
comment is to be specified inside the object's block ({} block)
Relies on libnftnl exporting nftnl_obj_get_data and kernel space support
to store the comments.
For consistency, this patch makes the comment be printed first when
listing objects.
Adds a testcase importing all commented named objects except for secmark,
although it's supported.
Example: Adding a quota with a comment
> add table inet filter
> nft add quota inet filter q { over 1200 bytes \; comment "test_comment"\; }
> list ruleset
table inet filter {
quota q {
comment "test_comment"
over 1200 bytes
}
}
Signed-off-by: Jose M. Guisado Gomez <guigom@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Adds userdata building logic if a comment is specified when creating a
new table. Adds netlink userdata parsing callback function.
Relies on kernel supporting userdata for nft_table.
Example:
> nft add table ip x { comment "test"\; }
> nft list ruleset
table ip x {
comment "test"
}
Signed-off-by: Jose M. Guisado Gomez <guigom@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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For example:
define test = "state"
define foo = "match"
table x {
chain y {
ct state invalid log prefix "invalid $test $foo:"
}
}
This patch scans for variables in the log prefix string. The log prefix
expression is a list of constant and variable expression that are
converted into a constant expression from the evaluation phase.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Instead of calling 'which diff' over and over again, just detect the
tool's presence in run-tests.sh and pass $DIFF to each testcase just
like with nft binary.
Fall back to using 'true' command to avoid the need for any conditional
calling in test cases.
While being at it, unify potential diff calls so that a string
comparison in shell happens irrespective of diff presence.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch turns on POSIXLY_CORRECT on the getopt parser to enforce
options before commands. Users get a hint in such a case:
# nft list ruleset -a
Error: syntax error, options must be specified before commands
nft list ruleset -a
^ ~~
This patch recovers 9fc71bc6b602 ("main: Fix for misleading error with
negative chain priority").
Tests have been updated.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The shell-based tests currently encode a return value in the
file name, i.e. foo_1 expects that the script should return '1'
for the test case to pass.
This is very error prone, and one test case is even broken (i.e.,
it returns 1, but because of a different, earlier error).
do_something || exit 1
or
'set -e'
are both pretty common patterns, in both cases tests should fail.
In those test-cases that deliberately test for an error,
nft something_should_fail || exit 0
nft something_should_fail && exit 1
or a similar constructs should be used.
This initial commit modififies all '_1' scripts to return 0 on
success, usually via 'nft wrong || exit 0'.
All tests pass, except the one broken test case that hasn't worked
before either, but where 'set -e' use made it pass (the failing command
is supposed to work, and the command that is supposed to fail is never
run).
Signed-off-by: Florian Westphal <fw@strlen.de>
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Default not to print the service name as we discussed during the NFWS.
# nft list ruleset
table ip x {
chain y {
tcp dport 22
ip saddr 1.1.1.1
}
}
# nft -l list ruleset
table ip x {
chain y {
tcp dport ssh
ip saddr 1.1.1.1
}
}
# nft -ll list ruleset
table ip x {
chain y {
tcp dport 22
ip saddr 1dot1dot1dot1.cloudflare-dns.com
}
}
Then, -ll displays FQDN. just like the (now deprecated) --ip2name (-N)
option.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Fetch object, chain and set handles and with '-a' option and then delete
them.
Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Complete the automated shell tests with the verification of
the test file dump, only for positive tests and if the test
execution was successful.
It's able to generate the dump file with the -g option.
Example:
# ./run-tests.sh -g testcases/chains/0001jumps_0
The dump files are generated in the same path in the folder named
dumps/ with .nft extension.
It has been avoided the dump verification code in every test
file.
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Delete objects with given object handle
Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Here some tests for optional things like rule handles and comments.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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