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Lexer expression for bytestring was too loose, accepting also
full-length IPv6 addresses. It should be restricted such that
colon is used between every byte or never.
Fix the regex and also add some test cases for it.
Thanks to Alexander Zubkov for the bugreport
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Add operators .min and .max to find minumum or maximum element in sets
of types: clist, eclist, lclist. Example usage:
bgp_community.min
bgp_ext_community.max
filter(bgp_large_community, [(as1, as2, *)]).min
Signed-off-by: Alexander Zubkov <green@qrator.net>
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Add operators that can be used to pick components from
pair (standard community) or lc (large community) types.
For example:
(10, 20).asn --> 10
(10, 20).data --> 20
(10, 20, 30).asn --> 10
(10, 20, 30).data1 --> 20
(10, 20, 30).data2 --> 30
Signed-off-by: Alexander Zubkov <green@qrator.net>
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For numeric operators, comma is used for disjunction in expressions like
"10, 20, 30..40". But for bitmask operators, comma is used for
conjunction in a way that does not really make much sense. Use always
explicit logical operators (&& and ||) to connect bitmask operators.
Thanks to Matt Corallo for the bugreport.
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Add support to set or read outgoing MPLS labels using filters. Currently
this supports the addition of one label per route for the first next hop.
Minor changes by committer.
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When a link-local address is set, use the existing iface for scope.
Thanks to Marcel Krüger for the bugreport.
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Add macros for recursive filter iteration that allows to examine
all instructions reachable from a filter.
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Broken detection of top-level case caused crash when return was called
from top-of-stack position. It should behave as reject/accept.
Thanks to Damian Zaremba for the bugreport.
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Add 'weight' route attribute that allows to get and set ECMP weight of
nexthops. Similar to 'gw' attribute, it is limited to the first nexthop,
but it is useful for handling BGP multipath, where an ECMP route is
merged from multiple regular routes.
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Also fixes some more failed asserts due to add_tail().
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Compare the content of PM_ASN_SET in path masks. A reconfiguration
was not properly triggering a reload of affected protocols when the
members of a set in a path mask change.
Also, update the printing code to so that it can display sets in a path
mask.
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Add a missing return statement. Path masks with the same length were all
considered the same. Comparing two with different length would cause
out-of-bounds memory access.
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Implement regex-like '+' operator in BGP path masks to match previous
path mask item multiple times. This is useful as ASNs may appear
multiple times in paths due to path prepending for traffic engineering
purposes.
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No need for this debug filter command and it can be abused from CLI.
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This is merely a const propagation. There was no problem in there.
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Use separate IPv4 and IPv6 implementation of prefix sets. Just this
change makes IPv4 prefix sets 60% smaller and 50% faster.
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Do not apply dynamic type check for second argument of AND/OR, as it is
not evaluated immediately like regular argument would be.
Thanks to Mikael for the bugreport.
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Initial parsing of test.conf must be done directly in filter_test main,
while reconfiguration is handled as a regular test. Also fix several
minor issues in test code.
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Check the SYM_FLAG_SAME in new symbols. The old code checked that
in old symbols (f2).
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We use constant promotion from IPv4 to Router-ID values, as they have
same literals. Instead of ad-hoc code in filter instructions, add
constant promotion code to parse-time typecheck code.
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Most expressions can be type-validated in parse time. It is not
strong enough to eliminate runtime checks, but at least one gets
errors immediately during reconfigure.
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We already had them defined on BGP level, but they are more general.
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Function bodies were compared in post-parse time, yet the result was not
used and the functions were incorrectly considered the same as before.
Now the result is used to reload affected protocols.
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The old 'where' code computed size value incorrectly, which leads
to invalid instruction lines and filter errors or crashes.
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Allow to not only use set literals in path masks, but also existing
set constants or set expressions.
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vars
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mq-filter-stack
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