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/*
* Soft: Keepalived is a failover program for the LVS project
* <www.linuxvirtualserver.org>. It monitor & manipulate
* a loadbalanced server pool using multi-layer checks.
*
* Part: cfreader.c include file.
*
* Author: Alexandre Cassen, <acassen@linux-vs.org>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Copyright (C) 2001-2017 Alexandre Cassen, <acassen@gmail.com>
*/
#ifndef _PARSER_H
#define _PARSER_H
/* system includes */
#include <sys/types.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
/* local includes */
#include "vector.h"
#include "memory.h"
#include "warnings.h"
/* Global definitions */
/* Maximum config line length */
#define MAXBUF 1024
/* Maximum time read_timer can read - in micro-seconds */
#define TIMER_MAXIMUM (ULONG_MAX - 1)
/* Special values for parameters when we want to know they haven't been set */
#define TIME_T_PARAMETER_UNSET LONG_MAX
#define PARAMETER_UNSET UINT_MAX
/* Configuration test errors. These should be in decreasing order of severity */
typedef enum {
CONFIG_OK,
/* The following mean keepalived cannot run the config */
CONFIG_FILE_NOT_FOUND,
CONFIG_BAD_IF,
CONFIG_FATAL,
/* The following are configuration errors, but keepalived will still run */
CONFIG_MULTIPLE_FILES,
CONFIG_UNKNOWN_KEYWORD,
CONFIG_UNEXPECTED_BOB, /* '{' */
CONFIG_MISSING_BOB, /* '{' */
CONFIG_UNEXPECTED_EOB, /* '}' */
CONFIG_MISSING_EOB, /* '}' */
CONFIG_UNMATCHED_QUOTE,
CONFIG_MISSING_PARAMETER,
CONFIG_INVALID_NUMBER,
CONFIG_GENERAL_ERROR,
CONFIG_WARNING,
CONFIG_DEPRECATED,
/* The following is for script security not enabled when needed */
CONFIG_SECURITY_ERROR,
} config_err_t;
/* keyword definition */
typedef void **vpp_t;
#define VPP (vpp_t)
typedef struct _keyword {
const char *string;
void (*handler) (const vector_t *);
vector_t *sub;
void (*sub_close_handler) (void);
bool active;
bool allow_mismatched_quotes;
vpp_t ptr;
vpp_t sub_close_ptr;
} keyword_t;
/* global vars exported */
extern vector_t *keywords;
extern const char *config_id;
extern const char *WHITE_SPACE;
#ifdef _PARSER_DEBUG_
extern bool do_parser_debug;
#endif
#ifdef _DUMP_KEYWORDS_
extern bool do_dump_keywords;
#endif
#ifndef _ONE_PROCESS_DEBUG_
extern const char *config_save_dir;
#endif
static inline const char * __attribute__((malloc))
set_value_r(const vector_t *strvec)
{
return STRDUP(strvec_slot(strvec, 1));
}
#ifdef _MEM_CHECK_
#define alloc_strvec(str, keyw) (memcheck_log("alloc_strvec", str, (__FILE__), (__func__), (__LINE__)), \
alloc_strvec_r(str, keyw))
#define set_value(str) (memcheck_log("set_value", strvec_slot(str,1), (__FILE__), (__func__), (__LINE__)), \
set_value_r(str))
#else
#define alloc_strvec(str, keyw) (alloc_strvec_r(str, keyw))
#define set_value(str) (set_value_r(str))
#endif
/* Prototypes */
extern void set_string(const char **, const vector_t *, const char *);
extern void report_config_error(config_err_t, const char *format, ...)
__attribute__((format (printf, 2, 3)));
extern void use_disk_copy_for_config(const char *);
extern void clear_config_status(void);
extern config_err_t get_config_status(void) __attribute__ ((pure));
extern bool read_int(const char *, int *, int, int, bool);
extern bool read_unsigned(const char *, unsigned *, unsigned, unsigned, bool);
extern bool read_unsigned64(const char *, uint64_t *, uint64_t, uint64_t, bool);
extern bool read_decimal_unsigned(const char *, unsigned *, unsigned, unsigned, unsigned, bool);
extern bool read_int_strvec(const vector_t *, size_t, int *, int, int, bool);
extern bool read_unsigned_strvec(const vector_t *, size_t, unsigned *, unsigned, unsigned, bool);
extern bool read_unsigned64_strvec(const vector_t *, size_t, uint64_t *, uint64_t, uint64_t, bool);
extern bool read_unsigned_base_strvec(const vector_t *, size_t, int, unsigned *, unsigned, unsigned, bool);
extern bool read_decimal_unsigned_strvec(const vector_t *, size_t, unsigned *, unsigned, unsigned, unsigned, bool);
extern uint16_t read_hex_str(const char *, uint8_t **, uint8_t **);
extern void set_random_seed(unsigned int);
extern void install_keyword_root(const char *, void (*handler) (const vector_t *), bool, vpp_t);
extern vpp_t install_sublevel(vpp_t) WARN_UNUSED_RESULT;
extern void install_sublevel_end(vpp_t);
extern void install_level_end_handler(void (*handler) (void));
extern void install_keyword(const char *, void (*handler) (const vector_t *));
extern void install_keyword_quoted(const char *, void (*handler) (const vector_t *));
extern const vector_t *alloc_strvec_quoted_escaped(const char *);
extern const vector_t *alloc_strvec_quoted(const char *);
extern vector_t *alloc_strvec_r(const char *, const vector_t *);
extern bool check_conf_file(const char*);
extern const vector_t *read_value_block(const vector_t *);
extern void alloc_value_block(void (*alloc_func) (const vector_t *), const vector_t *);
extern bool read_timer(const vector_t *, size_t, unsigned long *, unsigned long, unsigned long, bool);
extern int check_true_false(const char *) __attribute__ ((pure));
extern void skip_block(bool);
extern void init_data(const char *, const vector_t * (*init_keywords) (void), bool);
extern int get_config_fd(void);
extern void set_config_fd(int);
void include_check_set(const vector_t *);
bool had_config_file_error(void) __attribute__((pure));
void separate_config_file(void);
#endif
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