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Commit Graph

32 Commits

Author SHA1 Message Date
Maria Matejka
da8a23277e CLI: Dumping internal data structures to files, not to debug output
All the 'dump something' CLI commands now have a new mandatory
argument -- name of the file where to dump the data. This allows
for more flexible dumping even for production deployments where
the debug output is by default off.

Also the dump commands are now restricted (they weren't before)
to assure that only the appropriate users can run these time consuming
commands.
2024-12-02 06:54:54 +01:00
katerina.kubecova
a0fb0eaa67 BGP: Setting and unsetting unknown attributes
All these must be declared as bytestring. Allows operators to delete
unwanted attributes breaking the Internet:

    https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling
2023-09-20 14:15:18 +02:00
Ondrej Zajicek
7395b97daf Filter: Minor updates to methods
Remove warning when function-like syntax is used for calling
add/remove/... methods.

Fix argument offset in error messages for function-like syntax.
2023-09-12 18:44:20 +02:00
Ondrej Zajicek
f0d1396073 Filter: Implement constant promotion for multiple dispatch methods 2023-09-12 16:33:59 +02:00
Ondrej Zajicek
cc1099a041 Filter: Implement multiple dispatch for methods
- Extend method descriptors with type signature
 - Daisy chain method descriptors for the same symbol
 - Dispatch methods for same symbol based on type signature
 - Split add/delete/filter operations to multiple methods
 - Replace ad-hoc dispatch of old-style syntax with scope-based dispatch
 - Also change method->arg_num to count initial arg

It still needs some improvements, like better handling of untyped
expressions and better error reporting when no dispatch can be done.

The multiple dispatch could also be extended to dispatch regular
function-like expressions in a uniform way.
2023-09-12 16:31:52 +02:00
Maria Matejka
fdd39c81bd Filter: Print instructions take only one value (simplification) 2023-09-12 16:30:08 +02:00
Maria Matejka
21faa54ec3 Filter: The for loop uses the method system for type dispatch 2023-09-12 16:20:25 +02:00
Maria Matejka
062ff65683 Filter: functions can and should have typed return values 2023-09-12 15:58:07 +02:00
Alexander Zubkov
fc3547880a Filter: Add bytestring type
- Rename BYTESTRING lexem to BYTETEXT, not to collide with 'bytestring' type name
 - Add bytestring type with id T_BYTESTRING (0x2c)
 - Add from_hex() filter function to create bytestring from hex string
 - Add filter test cases for bytestring type

Minor changes by committer.
2023-08-24 04:33:33 +02:00
Maria Matejka
2f080b5432 Config: Dropping filter instruction trees after linearization 2023-02-22 14:54:09 +01:00
Ondrej Zajicek (work)
a2527ee53d Filter: Improve handling of stack frames in filter bytecode
When f_line is done, we have to pop the stack frame. The old code just
removed nominal number of args/vars. Change it to use stored ventry value
modified by number of returned values. This allows to allocate variables
on a stack frame during execution of f_lines instead of just at start.

But we need to know the number of returned values for a f_line. It is 1
for term, 0 for cmd. Store that to f_line during linearization.
2022-06-27 21:13:32 +02:00
Ondrej Zajicek (work)
26bc4f9904 Filter: Implement direct recursion
Direct recursion almost worked, just crashed on function signature check.
Split function parsing such that function signature is saved before
function body is processed. Recursive calls are marked so they can be
avoided during f_same() and similar code walking.

Also, include tower of hanoi solver as a test case.
2022-06-27 21:13:31 +02:00
Ondrej Zajicek (work)
93d6096c87 Filter: Implement type checks for function calls
Keep list of function parameters in f_line and use it to verify
types of arguments for function calls. Only static type checks
are implemented.
2022-06-27 21:13:31 +02:00
Ondrej Zajicek (work)
d06a875b04 Filter: Recursive filter iteration code
Add macros for recursive filter iteration that allows to examine
all instructions reachable from a filter.
2021-02-07 19:21:42 +01:00
Ondrej Zajicek (work)
ff2ca10cba Filter: Add support for src/dst accessors for Flowspec and SADR 2019-12-09 04:23:01 +01:00
Ondrej Zajicek (work)
87512e9751 Filter: Improve typecheck error messages 2019-11-05 15:30:16 +01:00
Maria Matejka
0da06b7103 Filter: lots of documentation 2019-07-15 13:19:01 +02:00
Maria Matejka
78976974e7 Dynamic attributes definition split whether it is bitmask or not. 2019-07-03 00:00:11 +02:00
Maria Matejka
63f49457dc Filter: renaming pointers for consistency
The struct f_inst * is now always "what"
and the union member pointer is always "whati".
2019-06-28 11:26:36 +02:00
Maria Matejka
a84b8b6ebb Revert "Filter: Dropped the setter instructions in favor of direct result storage."
This reverts commit bd91338246.
2019-06-19 14:09:57 +02:00
Maria Matejka
bd91338246 Filter: Dropped the setter instructions in favor of direct result storage.
This should help filter performance a bit.
2019-06-03 10:41:35 +02:00
Jan Maria Matejka
23e3b1e665 Filter: Some people can't pronounce "postfixify" correctly. Let's try "linearize" instead.
This is just a naming change.
2019-05-22 15:20:02 +00:00
Jan Maria Matejka
96d757c13f Filter: Store variables and function arguments on stack 2019-05-21 16:33:37 +00:00
Maria Matejka
e1ac6f1e30 Faster filters: documentation on what is happening there 2019-03-06 15:01:39 +01:00
Maria Matejka
f249d0b84c Filters: comparison of functions and filters caching 2019-02-26 16:44:24 +01:00
Maria Matejka
ea4f55e3dc Filter: More cleanup -- customized structures also in struct f_line_item 2019-02-20 22:30:55 +01:00
Maria Matejka
0b39b1cbb7 Conf: Symbol implementation converted from void pointers to union
... and consted some declarations.
2019-02-20 22:30:55 +01:00
Maria Matejka
132529ce89 Filter: merged filter compare functions into common M4 file 2019-02-20 22:30:55 +01:00
Maria Matejka
87bd7cd7b0 Filter: split the constructors to a separate file 2019-02-20 22:30:54 +01:00
Maria Matejka
4f082dfa89 Filter: merged filter instruction constructors, counting line size on instruction construct 2019-02-20 22:30:54 +01:00
Maria Matejka
8bdb05edb2 Filters: split the large filter.h file to smaller files.
This should be revised, there are still ugly things in the filter API.
2019-02-20 22:30:54 +01:00
Maria Matejka
9b46748d5b Filter: refactoring of instruction constructors 2019-02-20 22:30:54 +01:00