serval-dna/conf.h
Andrew Bettison 71ed78e058 Make all 'config' tests pass
Change a test case: configuration options are now case sensitive.

Fix config file load and parse logic in conf.c, always copy 'debug' flags
from config.debug.

The config schema 'interfaces' option is no longer MANDATORY.

Introduce new CLIFLAG_PERMISSIVE_CONFIG to supress bad-config ERROR messages
from the 'config set' and 'config get' commands.

Refactor cli_execute() into cli_parse() and cli_invoke().  Use *const* struct
command_line_option everywhere.
2012-12-04 16:52:49 +10:30

559 lines
24 KiB
C

/*
Serval DNA configuration
Copyright (C) 2012 Serval Project Inc.
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.
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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/* This file defines the internal API to the configuration file. See "conf_schema.h" for the
* definition of the configuration schema, which is used to generate these API components.
*
* Each STRUCT(NAME, ...) schema declaration generates the following data declaration:
*
* struct config_NAME {
* ...
* };
*
* A C struct definition containing exactly one element per schema declaration inside the
* STRUCT..END_STRUCT block, in the defined order. The TYPE and NAME of each element depends
* on the schema declaration that produces it:
*
* ATOM(TYPE, bar, ...)
* NODE(TYPE, bar, ...)
*
* TYPE bar;
*
* STRING(SIZE, bar, ...)
*
* char bar[SIZE+1];
*
* SUB_STRUCT(NAME, bar, ...)
* NODE_STRUCT(NAME, bar, ...)
*
* struct config_NAME bar;
*
* Each ARRAY(NAME, ...) ... END_ARRAY(SIZE) schema declaration produces the following data
* declaration:
*
* struct config_NAME {
* unsigned ac;
* struct config_NAME__element {
* KEY-DECLARATION;
* VALUE-DECLARATION;
* } av[SIZE];
* };
*
* A C struct definition containing a count 'ac' of the number of array elements 0..SIZE-1,
* and 'av' an array of element values, each one consisting of a key and a value:
*
* KEY_ATOM(TYPE, ...)
*
* TYPE key;
*
* KEY_STRING(SIZE, ...)
*
* char key[SIZE+1];
*
* VALUE_ATOM(NAME, SIZE, LABELLEN, TYPE, ...)
* VALUE_NODE(NAME, SIZE, LABELLEN, TYPE, ...)
*
* TYPE value;
*
* VALUE_STRING(STRINGSIZE, ...)
*
* char value[STRINGSIZE+1];
*
* VALUE_SUB_STRUCT(STRUCTNAME)
* VALUE_NODE_STRUCT(STRUCTNAME, ...)
*
* struct config_STRUCTNAME value;
*
* Each STRUCT(NAME, ...) and ARRAY(NAME, ...) schema declaration generates the following API
* functions:
*
* - int cf_dfl_config_NAME(struct config_NAME *dest);
*
* A C function which sets the entire contents of the given C structure to its default values
* as defined in the schema. This will only return CFOK or CFERROR; see below.
*
* - int cf_opt_config_NAME(struct config_NAME *dest, const struct cf_om_node *node);
*
* A C function which parses the given COM (configuration object model) and assigns the parsed
* result into the given C structure. See below for the return value. For arrays, this
* function is used to parse each individual array element, and the parsed result is only
* appended to the array if it returns CFOK.
*
* If a STRUCT(NAME, VALIDATOR) or ARRAY(NAME, FLAGS, VALIDATOR) schema declaration is given a
* validator function, then the function must have the following signature:
*
* - int VALIDATOR(struct config_NAME *dest, int orig_result);
*
* A C function which validates the contents of the given C structure (struct or array) as
* defined in the schema. This function is invoked by the cf_opt_config_NAME() parser function
* just before it returns, so all the parse functions have already been called and the result
* is assembled. The validator function is passed a pointer to the (non-const) structure,
* which it may modify if desired, and the original CFxxx flags result code (not CFERROR) that
* would be returned by the cf_opt_config_NAME() parser function. It returns a new CFxxx flags
* result (which may simply be the same as was passed).
*
* In the case arrays, validator() is passed a *dest containing elements that were successfully
* parsed from the COM, omitting any that did not parse successfully (in which case the
* relevant CFxxx result flags will be set) and arbitrarily omitting others that did not fit
* (in which case the CFOVERFLOW flag is set). It is up to validator() to decide whether to
* return some, all or none of these elements (ie, alter dest->ac and/or dest->av), and whether
* to set or clear the CFARRAYOVERFLOW bit, or set other bits (like CFINVALID for example). If
* there is no validator function, then cf_opt_config_NAME() will return an empty array (dest->ac
* == 0) in the case of CFARRAYOVERFLOW.
*
* All parse functions assign the result of their parsing into the struct given in their 'dest'
* argument, and return a bitmask of the following flags:
*
* - CFERROR (all bits set, == -1) if an unrecoverable error occurs (eg, malloc() fails). The
* result in *dest is undefined and may be malformed or inconsistent.
*
* - CFEMPTY if no items were parsed from the COM. In the case of a struct, this means that no
* child nodes were found for any elements; if any child nodes were present but failed parsing
* then CFEMPTY is not set but other flags will be set. In the case of arrays, CFEMPTY means
* that the returned array has zero length for _any_ reason (overflow, element parsing failures,
* or no elements present in the COM).
*
* - CFUNSUPPORTED if the config item (array or struct) is not supported. This flag is not
* produced by the normal cf_opt_config_NAME() parse functions, but a validation function could set
* it to indicate that a given option is not yet implemented or has been deprecated. In that
* case, the validation function should also log a message to that effect. The CFUNSUPPORTED
* flag is mainly used in its CFSUB(CFUNSUPPORTED) form (see below) to indicate that the COM
* contains elements that are not defined in the STRUCT. This may indicate a typo in the name
* of a config option, resulting in the intended option not being set.
*
* - CFDUPLICATE if a duplicate array entry was found. The result may be an empty array (in which
* case CFEMPTY is also set), or an array that omits the duplicate element. It is not defined
* which of the two conflicting elements will get omitted. Normal array parsing without a
* validator function will return an empty array in the case of duplicate, but a validator
* function may change this behaviour.
*
* - CFARRAYOVERFLOW if the size of any array was exceeded. The result in *dest may be empty (in
* which case CFEMPTY is also set), or may contain elements parsed successfully from the COM (ie,
* returned CFOK), omitting any that did not parse successfully (in which case the relevant
* CFSUB() bits will be set) and arbitrarily omitting others that did not fit. It is not defined
* which elements get omitted from an overflowed array. Normal array parsing without a validator
* function will return an empty array in the case of overflow, but a validator function may
* change this behaviour.
*
* - CFSTRINGFOVERFLOW if the size of any string element was exceeded. The result in *dest may be
* unchanged or may contain a truncated string, depending on the parser that detected and
* reported the string overflow.
*
* - CFINCOMPLETE if any MANDATORY element is missing (no node in the COM) or empty (as indicated
* by the CFEMPTY bit in its parse result). The result in *dest is valid but the missing
* mandatory element(s) are unchanged (in the case of a struct) or zero-length (in the case of an
* array).
*
* - CFINVALID if any invalid configuration value was encountered, ie, any parse function returned
* CFINVALID in its return flags. The result in *dest is valid and the elements that failed
* to parse are unchanged.
*
* - CFSUB(CFxxx) if any element of a STRUCT or ARRAY produced a CFxxx result when being parsed, ie
* any element's parse function returned CFxxx. In the case of a STRUCT, the failed elements are
* usually left with their prior (default) values, but this depends on the parse functions'
* behaviours. In the case of an ARRAY, failed elements are omitted from the array
*
* The difference between CFSUB(CFxxx) and CFxxx needs explaining. To illustrate, CFSUB(CFINVALID)
* is different from CFINVALID because an element of a struct or array may have failed to parse, yet
* the whole struct or array itself may still be valid (in the case of a struct, the element's prior
* value may be retained, and in the case of an array, the failed element is simply omitted from the
* result). A validator function may wish to reflect any CFSUB() bit as a CFINVALID result, but the
* normal behaviour of cf_opt_config_NAME() is to not return CFINVALID unless the validator function
* sets it.
*
* The special value CFOK is zero (no bits set); in this case a valid result is produced and all of
* *dest is overwritten (except unused array elements).
*
* @author Andrew Bettison <andrew@servalproject.com>
*/
#ifndef __SERVALDNA_CONFIG_H
#define __SERVALDNA_CONFIG_H
#include <stdint.h>
#include <arpa/inet.h>
#include "constants.h"
#include "strbuf.h"
#include "serval.h"
#include "rhizome.h"
#define CONFIG_FILE_MAX_SIZE (32 * 1024)
#define INTERFACE_NAME_STRLEN 40
/* Return bit flags for config schema default cf_dfl_xxx() and parsing cf_opt_xxx() functions. */
#define CFERROR (~0) // all set
#define CFOK 0
#define CFEMPTY (1<<0)
#define CFDUPLICATE (1<<1)
#define CFARRAYOVERFLOW (1<<2)
#define CFSTRINGOVERFLOW (1<<3)
#define CFINCOMPLETE (1<<4)
#define CFINVALID (1<<5)
#define CFUNSUPPORTED (1<<6)
#define CF__SUB_SHIFT 16
#define CFSUB(f) ((f) << CF__SUB_SHIFT)
#define CF__SUBFLAGS CFSUB(~0)
#define CF__FLAGS (~0 & ~CF__SUBFLAGS)
strbuf strbuf_cf_flags(strbuf, int);
strbuf strbuf_cf_flag_reason(strbuf sb, int flags);
/* The Configuration Object Model (COM). The config file is parsed into a tree of these structures
* first, then those structures are passed as arguments to the schema parsing functions.
*/
struct cf_om_node {
const char *source; // = parse_config() 'source' arg
unsigned int line_number;
const char *fullkey; // malloc()
const char *key; // points inside fullkey, do not free()
const char *text; // malloc()
size_t nodc;
struct cf_om_node *nodv[10]; // malloc()
};
int is_configvarname(const char *);
int cf_om_parse(const char *source, const char *buf, size_t len, struct cf_om_node **rootp);
int cf_om_get_child(const struct cf_om_node *parent, const char *key, const char *keyend);
const char *cf_om_get(const struct cf_om_node *root, const char *fullkey);
int cf_om_set(struct cf_om_node **nodep, const char *fullkey, const char *text);
void cf_om_free_node(struct cf_om_node **nodep);
void cf_om_dump_node(const struct cf_om_node *node, int indent);
struct cf_om_iterator {
const struct cf_om_node *node;
unsigned sp;
struct {
const struct cf_om_node *node;
unsigned index;
} stack[20];
};
void cf_om_iter_start(struct cf_om_iterator *, const struct cf_om_node *);
int cf_om_iter_next(struct cf_om_iterator *);
struct cf_om_node *cf_om_root;
int cf_om_load();
int cf_om_reload();
int cf_om_save();
/* Diagnostic functions for use in config schema parsing functions, cf_opt_xxx(). */
void _cf_warn_nodev(struct __sourceloc __whence, const struct cf_om_node *node, const char *key, const char *fmt, va_list ap);
void _cf_warn_childrenv(struct __sourceloc __whence, const struct cf_om_node *parent, const char *fmt, va_list ap);
void _cf_warn_node(struct __sourceloc __whence, const struct cf_om_node *node, const char *key, const char *fmt, ...);
void _cf_warn_children(struct __sourceloc __whence, const struct cf_om_node *node, const char *fmt, ...);
void _cf_warn_duplicate_node(struct __sourceloc __whence, const struct cf_om_node *parent, const char *key);
void _cf_warn_missing_node(struct __sourceloc __whence, const struct cf_om_node *parent, const char *key);
void _cf_warn_node_value(struct __sourceloc __whence, const struct cf_om_node *node, int reason);
void _cf_warn_no_array(struct __sourceloc __whence, const struct cf_om_node *node, int reason);
void _cf_warn_unsupported_node(struct __sourceloc __whence, const struct cf_om_node *node);
void _cf_warn_unsupported_children(struct __sourceloc __whence, const struct cf_om_node *parent);
void _cf_warn_list_overflow(struct __sourceloc __whence, const struct cf_om_node *node);
void _cf_warn_spurious_children(struct __sourceloc __whence, const struct cf_om_node *parent);
void _cf_warn_array_key(struct __sourceloc __whence, const struct cf_om_node *node, int reason);
void _cf_warn_array_value(struct __sourceloc __whence, const struct cf_om_node *node, int reason);
#define cf_warn_nodev(node, key, fmt, ap) _cf_warn_nodev(__WHENCE__, node, key, fmt, ap)
#define cf_warn_childrenv(parent, fmt, ap) _cf_warn_childrenv(__WHENCE__, parent, fmt, ap)
#define cf_warn_node(node, key, fmt, ...) _cf_warn_node(__WHENCE__, node, key, fmt, ##__VA_ARGS__)
#define cf_warn_children(node, fmt, ...) _cf_warn_children(__WHENCE__, node, fmt, ##__VA_ARGS__)
#define cf_warn_duplicate_node(parent, key) _cf_warn_duplicate_node(__WHENCE__, parent, key)
#define cf_warn_missing_node(parent, key) _cf_warn_missing_node(__WHENCE__, parent, key)
#define cf_warn_node_value(node, reason) _cf_warn_node_value(__WHENCE__, node, reason)
#define cf_warn_no_array(node, reason) _cf_warn_no_array(__WHENCE__, node, reason)
#define cf_warn_unsupported_node(node) _cf_warn_unsupported_node(__WHENCE__, node)
#define cf_warn_unsupported_children(parent) _cf_warn_unsupported_children(__WHENCE__, parent)
#define cf_warn_list_overflow(node) _cf_warn_list_overflow(__WHENCE__, node)
#define cf_warn_spurious_children(parent) _cf_warn_spurious_children(__WHENCE__, parent)
#define cf_warn_array_key(node, reason) _cf_warn_array_key(__WHENCE__, node, reason)
#define cf_warn_array_value(node, reason) _cf_warn_array_value(__WHENCE__, node, reason)
struct pattern_list {
unsigned patc;
char patv[16][INTERFACE_NAME_STRLEN + 1];
};
#define PATTERN_LIST_EMPTY ((struct pattern_list){.patc = 0})
// Generate config struct definitions, struct config_NAME.
#define STRUCT(__name, __validator...) \
struct config_##__name {
#define NODE(__type, __element, __default, __parser, __flags, __comment) \
__type __element;
#define ATOM(__type, __element, __default, __parser, __flags, __comment) \
__type __element;
#define STRING(__size, __element, __default, __parser, __flags, __comment) \
char __element[__size + 1];
#define SUB_STRUCT(__name, __element, __flags) \
struct config_##__name __element;
#define NODE_STRUCT(__name, __element, __parser, __flags) \
struct config_##__name __element;
#define END_STRUCT \
};
#define ARRAY(__name, __flags, __validator...) \
struct config_##__name { \
unsigned ac; \
struct config_##__name##__element {
#define KEY_ATOM(__type, __eltparser, __cmpfunc...) \
__type key;
#define KEY_STRING(__strsize, __eltparser, __cmpfunc...) \
char key[(__strsize) + 1];
#define VALUE_ATOM(__type, __eltparser) \
__type value;
#define VALUE_STRING(__strsize, __eltparser) \
char value[(__strsize) + 1];
#define VALUE_NODE(__type, __eltparser) \
__type value;
#define VALUE_SUB_STRUCT(__structname) \
struct config_##__structname value;
#define VALUE_NODE_STRUCT(__structname, __eltparser) \
struct config_##__structname value;
#define END_ARRAY(__size) \
} av[(__size)]; \
};
#include "conf_schema.h"
#undef STRUCT
#undef NODE
#undef ATOM
#undef STRING
#undef SUB_STRUCT
#undef NODE_STRUCT
#undef END_STRUCT
#undef ARRAY
#undef KEY_ATOM
#undef KEY_STRING
#undef VALUE_ATOM
#undef VALUE_STRING
#undef VALUE_NODE
#undef VALUE_SUB_STRUCT
#undef VALUE_NODE_STRUCT
#undef END_ARRAY
// Generate config set-default function prototypes, cf_dfl_config_NAME().
#define STRUCT(__name, __validator...) \
int cf_dfl_config_##__name(struct config_##__name *s);
#define NODE(__type, __element, __default, __parser, __flags, __comment)
#define ATOM(__type, __element, __default, __parser, __flags, __comment)
#define STRING(__size, __element, __default, __parser, __flags, __comment)
#define SUB_STRUCT(__name, __element, __flags)
#define NODE_STRUCT(__name, __element, __parser, __flags)
#define END_STRUCT
#define ARRAY(__name, __flags, __validator...) \
int cf_dfl_config_##__name(struct config_##__name *a);
#define KEY_ATOM(__type, __eltparser, __cmpfunc...)
#define KEY_STRING(__strsize, __eltparser, __cmpfunc...)
#define VALUE_ATOM(__type, __eltparser)
#define VALUE_STRING(__strsize, __eltparser)
#define VALUE_NODE(__type, __eltparser)
#define VALUE_SUB_STRUCT(__structname)
#define VALUE_NODE_STRUCT(__structname, __eltparser)
#define END_ARRAY(__size)
#include "conf_schema.h"
#undef STRUCT
#undef NODE
#undef ATOM
#undef STRING
#undef SUB_STRUCT
#undef NODE_STRUCT
#undef END_STRUCT
#undef ARRAY
#undef KEY_ATOM
#undef KEY_STRING
#undef VALUE_ATOM
#undef VALUE_STRING
#undef VALUE_NODE
#undef VALUE_SUB_STRUCT
#undef VALUE_NODE_STRUCT
#undef END_ARRAY
// Generate config parser function prototypes.
#define __VALIDATOR(__name, __validator...) \
typedef int __validator_func__config_##__name##__t(const struct cf_om_node *, struct config_##__name *, int); \
__validator_func__config_##__name##__t __dummy__validator_func__config_##__name, ##__validator;
#define STRUCT(__name, __validator...) \
int cf_opt_config_##__name(struct config_##__name *, const struct cf_om_node *); \
__VALIDATOR(__name, ##__validator)
#define NODE(__type, __element, __default, __parser, __flags, __comment) \
int __parser(__type *, const struct cf_om_node *);
#define ATOM(__type, __element, __default, __parser, __flags, __comment) \
int __parser(__type *, const char *);
#define STRING(__size, __element, __default, __parser, __flags, __comment) \
int __parser(char *, size_t, const char *);
#define SUB_STRUCT(__name, __element, __flags) \
int cf_opt_config_##__name(struct config_##__name *, const struct cf_om_node *);
#define NODE_STRUCT(__name, __element, __parser, __flags) \
int __parser(struct config_##__name *, const struct cf_om_node *);
#define END_STRUCT
#define ARRAY(__name, __flags, __validator...) \
int cf_opt_config_##__name(struct config_##__name *, const struct cf_om_node *); \
__VALIDATOR(__name, ##__validator)
#define KEY_ATOM(__type, __eltparser, __cmpfunc...) \
int __eltparser(__type *, const char *);
#define KEY_STRING(__strsize, __eltparser, __cmpfunc...) \
int __eltparser(char *, size_t, const char *);
#define VALUE_ATOM(__type, __eltparser) \
int __eltparser(__type *, const char *);
#define VALUE_STRING(__strsize, __eltparser) \
int __eltparser(char *, size_t, const char *);
#define VALUE_NODE(__type, __eltparser) \
int __eltparser(__type *, const struct cf_om_node *);
#define VALUE_SUB_STRUCT(__structname) \
int cf_opt_config_##__structname(struct config_##__structname *, const struct cf_om_node *);
#define VALUE_NODE_STRUCT(__structname, __eltparser) \
int __eltparser(struct config_##__structname *, const struct cf_om_node *);
#define END_ARRAY(__size)
#include "conf_schema.h"
#undef __VALIDATOR
#undef STRUCT
#undef NODE
#undef ATOM
#undef STRING
#undef SUB_STRUCT
#undef NODE_STRUCT
#undef END_STRUCT
#undef ARRAY
#undef KEY_ATOM
#undef KEY_STRING
#undef VALUE_ATOM
#undef VALUE_STRING
#undef VALUE_NODE
#undef VALUE_SUB_STRUCT
#undef VALUE_NODE_STRUCT
#undef END_ARRAY
// Generate config array key comparison function prototypes.
#define STRUCT(__name, __validator...)
#define NODE(__type, __element, __default, __parser, __flags, __comment)
#define ATOM(__type, __element, __default, __parser, __flags, __comment)
#define STRING(__size, __element, __default, __parser, __flags, __comment)
#define SUB_STRUCT(__name, __element, __flags)
#define NODE_STRUCT(__name, __element, __parser, __flags)
#define END_STRUCT
#define ARRAY(__name, __flags, __validator...) \
typedef int __compare_func__config_##__name##__t
#define KEY_ATOM(__type, __eltparser, __cmpfunc...) \
(const __type *, const __type *);
#define KEY_STRING(__strsize, __eltparser, __cmpfunc...) \
(const char *, const char *);
#define VALUE_ATOM(__type, __eltparser)
#define VALUE_STRING(__strsize, __eltparser)
#define VALUE_NODE(__type, __eltparser)
#define VALUE_SUB_STRUCT(__structname)
#define VALUE_NODE_STRUCT(__structname, __eltparser)
#define END_ARRAY(__size)
#include "conf_schema.h"
#undef ARRAY
#undef KEY_ATOM
#undef KEY_STRING
#define ARRAY(__name, __flags, __validator...) \
__compare_func__config_##__name##__t __dummy__compare_func__config_##__name
#define KEY_ATOM(__type, __eltparser, __cmpfunc...) \
,##__cmpfunc;
#define KEY_STRING(__strsize, __eltparser, __cmpfunc...) \
,##__cmpfunc;
#include "conf_schema.h"
#undef STRUCT
#undef NODE
#undef ATOM
#undef STRING
#undef SUB_STRUCT
#undef NODE_STRUCT
#undef END_STRUCT
#undef ARRAY
#undef KEY_ATOM
#undef KEY_STRING
#undef VALUE_ATOM
#undef VALUE_STRING
#undef VALUE_NODE
#undef VALUE_SUB_STRUCT
#undef VALUE_NODE_STRUCT
#undef END_ARRAY
// Generate config array search-by-key function prototypes.
#define STRUCT(__name, __validator...)
#define NODE(__type, __element, __default, __parser, __flags, __comment)
#define ATOM(__type, __element, __default, __parser, __flags, __comment)
#define STRING(__size, __element, __default, __parser, __flags, __comment)
#define SUB_STRUCT(__name, __element, __flags)
#define NODE_STRUCT(__name, __element, __parser, __flags)
#define END_STRUCT
#define ARRAY(__name, __flags, __validator...) \
int config_##__name##__get(const struct config_##__name *,
#define KEY_ATOM(__type, __eltparser, __cmpfunc...) \
const __type *);
#define KEY_STRING(__strsize, __eltparser, __cmpfunc...) \
const char *);
#define VALUE_ATOM(__type, __eltparser)
#define VALUE_STRING(__strsize, __eltparser)
#define VALUE_NODE(__type, __eltparser)
#define VALUE_SUB_STRUCT(__structname)
#define VALUE_NODE_STRUCT(__structname, __eltparser)
#define END_ARRAY(__size)
#include "conf_schema.h"
#undef STRUCT
#undef NODE
#undef ATOM
#undef STRING
#undef SUB_STRUCT
#undef NODE_STRUCT
#undef END_STRUCT
#undef ARRAY
#undef KEY_ATOM
#undef KEY_STRING
#undef VALUE_ATOM
#undef VALUE_STRING
#undef VALUE_NODE
#undef VALUE_SUB_STRUCT
#undef VALUE_NODE_STRUCT
#undef END_ARRAY
int cf_opt_boolean(int *booleanp, const char *text);
int cf_opt_absolute_path(char *str, size_t len, const char *text);
int cf_opt_debugflags(debugflags_t *flagsp, const struct cf_om_node *node);
int cf_opt_rhizome_peer(struct config_rhizome_peer *, const struct cf_om_node *node);
int cf_opt_rhizome_peer_from_uri(struct config_rhizome_peer *, const char *uri);
int cf_opt_str(char *str, size_t len, const char *text);
int cf_opt_str_nonempty(char *str, size_t len, const char *text);
int cf_opt_int(int *intp, const char *text);
int cf_opt_int32_nonneg(int32_t *intp, const char *text);
int cf_opt_uint32_nonzero(uint32_t *intp, const char *text);
int cf_opt_uint64_scaled(uint64_t *intp, const char *text);
int cf_opt_protocol(char *str, size_t len, const char *text);
int cf_opt_in_addr(struct in_addr *addrp, const char *text);
int cf_opt_port(unsigned short *portp, const char *text);
int cf_opt_sid(sid_t *sidp, const char *text);
int cf_opt_rhizome_bk(rhizome_bk_t *bkp, const char *text);
int cf_opt_interface_type(short *typep, const char *text);
int cf_opt_pattern_list(struct pattern_list *listp, const char *text);
int cf_opt_interface_list(struct config_interface_list *listp, const struct cf_om_node *node);
extern int cf_limbo;
extern struct config_main config;
int cf_init();
int cf_load();
int cf_load_permissive();
int cf_reload();
int cf_reload_permissive();
#endif //__SERVALDNA_CONFIG_H