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bird/filter/f-util.h

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Config: Make the parser and lexer reentrant. This is part of the multithreading journey. The parser and lexer were using loads of global variables and all of these are now packed into struct cf_context and others. Note that the config API has changed: * cfg_alloc[zu]?(size) is now cf_alloc[zu]?(ctx, size) * cf_error(msg, ...) is now cf_error(ctx, msg, ...) * config_parse() and cli_parse() are now called differently * there is a brand new CF_CTX section in *.Y files which participates in struct cf_context construction
2018-08-13 09:41:27 +00:00
/*
* BIRD Internet Routing Daemon -- Filters
*
* (c) 1999 Pavel Machek <pavel@ucw.cz>
* (c) 2018 Maria Matejka <mq@jmq.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_FILTER_UTIL_H_
#define _BIRD_FILTER_UTIL_H_
struct f_inst *f_new_inst(struct cf_context *ctx, enum f_instruction_code fi_code);
struct f_inst *f_new_inst_da(struct cf_context *ctx, enum f_instruction_code fi_code, struct f_dynamic_attr da);
struct f_inst *f_new_inst_sa(struct cf_context *ctx, enum f_instruction_code fi_code, struct f_static_attr sa);
static inline struct f_dynamic_attr f_new_dynamic_attr(int type, int f_type, int code) /* Type as core knows it, type as filters know it, and code of dynamic attribute */
{ return (struct f_dynamic_attr) { .type = type, .f_type = f_type, .ea_code = code }; } /* f_type currently unused; will be handy for static type checking */
static inline struct f_static_attr f_new_static_attr(int f_type, int code, int readonly)
{ return (struct f_static_attr) { .f_type = f_type, .sa_code = code, .readonly = readonly }; }
struct f_tree *f_new_tree(struct cf_context *ctx);
struct f_inst *f_generate_complex(struct cf_context *ctx, int operation, int operation_aux, struct f_dynamic_attr da, struct f_inst *argument);
struct f_inst *f_generate_roa_check(struct cf_context *ctx, struct rtable_config *table, struct f_inst *prefix, struct f_inst *asn);
uint f_eval_int(struct f_inst *expr, struct cf_context *ctx);
#endif
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