| Commit message (Collapse) | Author | Age | Files | Lines |
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Requires to use proper types for keys and data and using the key values for reverse
transformation.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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This fixes compilation with gcc-4.7
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Base chains with both a hook number and priority of zero are created
as regular chains. Fix by adding a BASECHAIN flag indicating that the
chain should be created as a base chain.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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# nft describe dccp type
payload expression, datatype dccp_pkttype (DCCP packet type) (basetype integer), 4 bits
pre-defined symbolic constants:
request 0x0
response 0x1
data 0x2
ack 0x3
dataack 0x4
closereq 0x5
close 0x6
reset 0x7
sync 0x8
syncack 0x9
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Add size and type information to non-basetype types and remove the now
redundant information from the symbol tables.
This will be used to determine size and byteorder of set members without
analyzing the ruleset for incremental update operations.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Add a table containing all available datatypes and registration/lookup functions.
This will be used to associate a stand-alone set in the kernel with the correct
type without parsing the entire ruleset.
Additionally it would now be possible to remove the global declarations for the
core types. Not done yet though.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Move the data related function to netlink.c as they're going to be needed
outside of rule context for set maintenance.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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Properly release the user-defined symbols.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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User-defined constants can be used like this:
define allowed_hosts = { 192.168.0.0/24, 10.0.0.20-10.0.0.30 }
define udp_services = domain
define tcp_services = { ssh, domain }
ip saddr $allowed_hosts udp dport $udp_services counter accept
ip saddr $allowed_hosts tcp dport $tcp_services counter accept
Recursive definitions are possible, but currently not fully handled.
Anything requiring transformations (sets using ranges) can not be
used more than once currently since the expressions need to be COW'ed
previously.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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As a first step towards stand-alone sets, add support for scoping and
binding symbols. This will be used for user-defined constants, as well
as declarations of modifiable (stand-alone) sets once the kernel side
is ready.
Scopes are currently limited to three nesting levels: the global scope,
table block scopes and chain block scopes.
Signed-off-by: Patrick McHardy <kaber@trash.net>
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Signed-off-by: Patrick McHardy <kaber@trash.net>
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