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Flowspec: Documentation update

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Ondrej Zajicek (work) 2021-05-18 20:41:01 +02:00
parent abc9ccc5cb
commit c3c691e95c
2 changed files with 4 additions and 2 deletions
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2
doc/bird.sgml
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@ -5094,6 +5094,8 @@ Bitmask matching is written using <m/value/<cf>/</cf><m/mask/ or
<cf/!/<m/value/<cf>/</cf><m/mask/ pairs. It means that <cf/(/<m/data/ <cf/&/ <cf/!/<m/value/<cf>/</cf><m/mask/ pairs. It means that <cf/(/<m/data/ <cf/&/
<m/mask/<cf/)/ is or is not equal to <m/value/. It is also possible to use <m/mask/<cf/)/ is or is not equal to <m/value/. It is also possible to use
multiple value/mask pairs connected by logical operators <cf/&&/ or <cf/||/. multiple value/mask pairs connected by logical operators <cf/&&/ or <cf/||/.
Note that for negated matches, value must be either zero or equal to bitmask
(e.g. !0x0/0xf or !0xf/0xf, but not !0x3/0xf).
<sect2>IPv4 Flowspec <sect2>IPv4 Flowspec

4
lib/flowspec.c
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@ -815,8 +815,8 @@ flow_builder_add_op_val(struct flow_builder *fb, byte op, u32 value)
* @mask: bitmask * @mask: bitmask
* *
* It is required to set appropriate flowspec component type using function * It is required to set appropriate flowspec component type using function
* flow_builder_set_type(). This function should return 1 for successful adding, * flow_builder_set_type(). Note that for negation, value must be zero or equal
* otherwise returns 0. * to bitmask.
*/ */
int int
flow_builder_add_val_mask(struct flow_builder *fb, byte op, u32 value, u32 mask) flow_builder_add_val_mask(struct flow_builder *fb, byte op, u32 value, u32 mask)