# copy-n-paste from Makefile.am
LOCAL_SRC_FILES := \
-library.c settings.c \
+library.c \
asn1/asn1.c asn1/asn1_parser.c asn1/oid.c bio/bio_reader.c bio/bio_writer.c \
collections/blocking_queue.c collections/enumerator.c collections/hashtable.c \
collections/linked_list.c \
threading/mutex.c threading/semaphore.c threading/rwlock.c threading/spinlock.c \
utils.c utils/chunk.c utils/debug.c utils/enum.c utils/identification.c \
utils/lexparser.c utils/optionsfrom.c utils/capabilities.c utils/backtrace.c \
-utils/printf_hook.c
+utils/printf_hook.c utils/settings.c
# adding the plugin source files
ipseclib_LTLIBRARIES = libstrongswan.la
libstrongswan_la_SOURCES = \
-library.c settings.c \
+library.c \
asn1/asn1.c asn1/asn1_parser.c asn1/oid.c bio/bio_reader.c bio/bio_writer.c \
collections/blocking_queue.c collections/enumerator.c collections/hashtable.c \
collections/linked_list.c \
threading/mutex.c threading/semaphore.c threading/rwlock.c threading/spinlock.c \
utils.c utils/chunk.c utils/debug.c utils/enum.c utils/identification.c \
utils/lexparser.c utils/optionsfrom.c utils/capabilities.c utils/backtrace.c \
-utils/printf_hook.c
+utils/printf_hook.c utils/settings.c
if USE_DEV_HEADERS
strongswan_includedir = ${dev_headers}
nobase_strongswan_include_HEADERS = \
-library.h settings.h \
+library.h \
asn1/asn1.h asn1/asn1_parser.h asn1/oid.h bio/bio_reader.h bio/bio_writer.h \
collections/blocking_queue.h collections/enumerator.h collections/hashtable.h \
collections/linked_list.h \
threading/rwlock.h threading/rwlock_condvar.h threading/lock_profiler.h \
utils.h utils/chunk.h utils/debug.h utils/enum.h utils/identification.h \
utils/lexparser.h utils/optionsfrom.h utils/capabilities.h utils/backtrace.h \
-utils/leak_detective.h utils/printf_hook.h utils/integrity_checker.h
+utils/leak_detective.h utils/printf_hook.h utils/settings.h utils/integrity_checker.h
endif
library.lo : $(top_builddir)/config.status
typedef struct crypto_factory_t crypto_factory_t;
#include <library.h>
+#include <collections/enumerator.h>
#include <crypto/crypters/crypter.h>
#include <crypto/aead.h>
#include <crypto/signers/signer.h>
/* make sure we include printf_hook.h first */
#include "utils/printf_hook.h"
#include "utils.h"
-#include "settings.h"
#include "networking/host_resolver.h"
#include "processing/processor.h"
#include "processing/scheduler.h"
#include "utils/chunk.h"
#include "utils/integrity_checker.h"
#include "utils/leak_detective.h"
+#include "utils/settings.h"
#include "plugins/plugin_loader.h"
typedef struct library_t library_t;
+++ /dev/null
-/*
- * Copyright (C) 2010 Tobias Brunner
- * Copyright (C) 2008 Martin Willi
- * Hochschule fuer Technik Rapperswil
- *
- * 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. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * 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.
- */
-
-#define _GNU_SOURCE
-#include <string.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <errno.h>
-#include <limits.h>
-#include <libgen.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#ifdef HAVE_GLOB_H
-#include <glob.h>
-#endif /* HAVE_GLOB_H */
-
-#include "settings.h"
-
-#include "collections/linked_list.h"
-#include "threading/rwlock.h"
-#include "utils/debug.h"
-
-#define MAX_INCLUSION_LEVEL 10
-
-typedef struct private_settings_t private_settings_t;
-typedef struct section_t section_t;
-typedef struct kv_t kv_t;
-
-/**
- * private data of settings
- */
-struct private_settings_t {
-
- /**
- * public functions
- */
- settings_t public;
-
- /**
- * top level section
- */
- section_t *top;
-
- /**
- * contents of loaded files and in-memory settings (char*)
- */
- linked_list_t *contents;
-
- /**
- * lock to safely access the settings
- */
- rwlock_t *lock;
-};
-
-/**
- * section containing subsections and key value pairs
- */
-struct section_t {
-
- /**
- * name of the section
- */
- char *name;
-
- /**
- * subsections, as section_t
- */
- linked_list_t *sections;
-
- /**
- * key value pairs, as kv_t
- */
- linked_list_t *kv;
-};
-
-/**
- * Key value pair
- */
-struct kv_t {
-
- /**
- * key string, relative
- */
- char *key;
-
- /**
- * value as string
- */
- char *value;
-};
-
-/**
- * create a key/value pair
- */
-static kv_t *kv_create(char *key, char *value)
-{
- kv_t *this;
- INIT(this,
- .key = strdup(key),
- .value = value,
- );
- return this;
-}
-
-/**
- * destroy a key/value pair
- */
-static void kv_destroy(kv_t *this)
-{
- free(this->key);
- free(this);
-}
-
-/**
- * create a section with the given name
- */
-static section_t *section_create(char *name)
-{
- section_t *this;
- INIT(this,
- .name = strdupnull(name),
- .sections = linked_list_create(),
- .kv = linked_list_create(),
- );
- return this;
-}
-
-/**
- * destroy a section
- */
-static void section_destroy(section_t *this)
-{
- this->kv->destroy_function(this->kv, (void*)kv_destroy);
- this->sections->destroy_function(this->sections, (void*)section_destroy);
- free(this->name);
- free(this);
-}
-
-/**
- * Purge contents of a section
- */
-static void section_purge(section_t *this)
-{
- this->kv->destroy_function(this->kv, (void*)kv_destroy);
- this->kv = linked_list_create();
- this->sections->destroy_function(this->sections, (void*)section_destroy);
- this->sections = linked_list_create();
-}
-
-/**
- * callback to find a section by name
- */
-static bool section_find(section_t *this, char *name)
-{
- return streq(this->name, name);
-}
-
-/**
- * callback to find a kv pair by key
- */
-static bool kv_find(kv_t *this, char *key)
-{
- return streq(this->key, key);
-}
-
-/**
- * Print a format key, but consume already processed arguments
- */
-static bool print_key(char *buf, int len, char *start, char *key, va_list args)
-{
- va_list copy;
- bool res;
- char *pos;
-
- va_copy(copy, args);
- while (start < key)
- {
- pos = strchr(start, '%');
- if (!pos)
- {
- start += strlen(start) + 1;
- continue;
- }
- pos++;
- switch (*pos)
- {
- case 'd':
- va_arg(copy, int);
- break;
- case 's':
- va_arg(copy, char*);
- break;
- case 'N':
- va_arg(copy, enum_name_t*);
- va_arg(copy, int);
- break;
- case '%':
- break;
- default:
- DBG1(DBG_CFG, "settings with %%%c not supported!", *pos);
- break;
- }
- start = pos;
- if (*start)
- {
- start++;
- }
- }
- res = vsnprintf(buf, len, key, copy) < len;
- va_end(copy);
- return res;
-}
-
-/**
- * Find a section by a given key, using buffered key, reusable buffer.
- * If "ensure" is TRUE, the sections are created if they don't exist.
- */
-static section_t *find_section_buffered(section_t *section,
- char *start, char *key, va_list args, char *buf, int len,
- bool ensure)
-{
- char *pos;
- section_t *found = NULL;
-
- if (section == NULL)
- {
- return NULL;
- }
- pos = strchr(key, '.');
- if (pos)
- {
- *pos = '\0';
- pos++;
- }
- if (!print_key(buf, len, start, key, args))
- {
- return NULL;
- }
- if (section->sections->find_first(section->sections,
- (linked_list_match_t)section_find,
- (void**)&found, buf) != SUCCESS)
- {
- if (ensure)
- {
- found = section_create(buf);
- section->sections->insert_last(section->sections, found);
- }
- }
- if (found && pos)
- {
- return find_section_buffered(found, start, pos, args, buf, len, ensure);
- }
- return found;
-}
-
-/**
- * Find a section by a given key (thread-safe).
- */
-static section_t *find_section(private_settings_t *this, section_t *section,
- char *key, va_list args)
-{
- char buf[128], keybuf[512];
- section_t *found;
-
- if (snprintf(keybuf, sizeof(keybuf), "%s", key) >= sizeof(keybuf))
- {
- return NULL;
- }
- this->lock->read_lock(this->lock);
- found = find_section_buffered(section, keybuf, keybuf, args, buf,
- sizeof(buf), FALSE);
- this->lock->unlock(this->lock);
- return found;
-}
-
-/**
- * Ensure that the section with the given key exists (thread-safe).
- */
-static section_t *ensure_section(private_settings_t *this, section_t *section,
- char *key, va_list args)
-{
- char buf[128], keybuf[512];
- section_t *found;
-
- if (snprintf(keybuf, sizeof(keybuf), "%s", key) >= sizeof(keybuf))
- {
- return NULL;
- }
- /* we might have to change the tree */
- this->lock->write_lock(this->lock);
- found = find_section_buffered(section, keybuf, keybuf, args, buf,
- sizeof(buf), TRUE);
- this->lock->unlock(this->lock);
- return found;
-}
-
-/**
- * Find the key/value pair for a key, using buffered key, reusable buffer
- * If "ensure" is TRUE, the sections (and key/value pair) are created if they
- * don't exist.
- */
-static kv_t *find_value_buffered(section_t *section, char *start, char *key,
- va_list args, char *buf, int len, bool ensure)
-{
- char *pos;
- kv_t *kv = NULL;
- section_t *found = NULL;
-
- if (section == NULL)
- {
- return NULL;
- }
-
- pos = strchr(key, '.');
- if (pos)
- {
- *pos = '\0';
- pos++;
-
- if (!print_key(buf, len, start, key, args))
- {
- return NULL;
- }
- if (section->sections->find_first(section->sections,
- (linked_list_match_t)section_find,
- (void**)&found, buf) != SUCCESS)
- {
- if (!ensure)
- {
- return NULL;
- }
- found = section_create(buf);
- section->sections->insert_last(section->sections, found);
- }
- return find_value_buffered(found, start, pos, args, buf, len,
- ensure);
- }
- else
- {
- if (!print_key(buf, len, start, key, args))
- {
- return NULL;
- }
- if (section->kv->find_first(section->kv, (linked_list_match_t)kv_find,
- (void**)&kv, buf) != SUCCESS)
- {
- if (ensure)
- {
- kv = kv_create(buf, NULL);
- section->kv->insert_last(section->kv, kv);
- }
- }
- }
- return kv;
-}
-
-/**
- * Find the string value for a key (thread-safe).
- */
-static char *find_value(private_settings_t *this, section_t *section,
- char *key, va_list args)
-{
- char buf[128], keybuf[512], *value = NULL;
- kv_t *kv;
-
- if (snprintf(keybuf, sizeof(keybuf), "%s", key) >= sizeof(keybuf))
- {
- return NULL;
- }
- this->lock->read_lock(this->lock);
- kv = find_value_buffered(section, keybuf, keybuf, args, buf, sizeof(buf),
- FALSE);
- if (kv)
- {
- value = kv->value;
- }
- this->lock->unlock(this->lock);
- return value;
-}
-
-/**
- * Set a value to a copy of the given string (thread-safe).
- */
-static void set_value(private_settings_t *this, section_t *section,
- char *key, va_list args, char *value)
-{
- char buf[128], keybuf[512];
- kv_t *kv;
-
- if (snprintf(keybuf, sizeof(keybuf), "%s", key) >= sizeof(keybuf))
- {
- return;
- }
- this->lock->write_lock(this->lock);
- kv = find_value_buffered(section, keybuf, keybuf, args, buf, sizeof(buf),
- TRUE);
- if (kv)
- {
- if (!value)
- {
- kv->value = NULL;
- }
- else if (kv->value && (strlen(value) <= strlen(kv->value)))
- { /* overwrite in-place, if possible */
- strcpy(kv->value, value);
- }
- else
- { /* otherwise clone the string and store it in the cache */
- kv->value = strdup(value);
- this->contents->insert_last(this->contents, kv->value);
- }
- }
- this->lock->unlock(this->lock);
-}
-
-METHOD(settings_t, get_str, char*,
- private_settings_t *this, char *key, char *def, ...)
-{
- char *value;
- va_list args;
-
- va_start(args, def);
- value = find_value(this, this->top, key, args);
- va_end(args);
- if (value)
- {
- return value;
- }
- return def;
-}
-
-/**
- * Described in header
- */
-inline bool settings_value_as_bool(char *value, bool def)
-{
- if (value)
- {
- if (strcaseeq(value, "1") ||
- strcaseeq(value, "yes") ||
- strcaseeq(value, "true") ||
- strcaseeq(value, "enabled"))
- {
- return TRUE;
- }
- else if (strcaseeq(value, "0") ||
- strcaseeq(value, "no") ||
- strcaseeq(value, "false") ||
- strcaseeq(value, "disabled"))
- {
- return FALSE;
- }
- }
- return def;
-}
-
-METHOD(settings_t, get_bool, bool,
- private_settings_t *this, char *key, bool def, ...)
-{
- char *value;
- va_list args;
-
- va_start(args, def);
- value = find_value(this, this->top, key, args);
- va_end(args);
- return settings_value_as_bool(value, def);
-}
-
-/**
- * Described in header
- */
-inline int settings_value_as_int(char *value, int def)
-{
- int intval;
- if (value)
- {
- errno = 0;
- intval = strtol(value, NULL, 10);
- if (errno == 0)
- {
- return intval;
- }
- }
- return def;
-}
-
-METHOD(settings_t, get_int, int,
- private_settings_t *this, char *key, int def, ...)
-{
- char *value;
- va_list args;
-
- va_start(args, def);
- value = find_value(this, this->top, key, args);
- va_end(args);
- return settings_value_as_int(value, def);
-}
-
-/**
- * Described in header
- */
-inline double settings_value_as_double(char *value, double def)
-{
- double dval;
- if (value)
- {
- errno = 0;
- dval = strtod(value, NULL);
- if (errno == 0)
- {
- return dval;
- }
- }
- return def;
-}
-
-METHOD(settings_t, get_double, double,
- private_settings_t *this, char *key, double def, ...)
-{
- char *value;
- va_list args;
-
- va_start(args, def);
- value = find_value(this, this->top, key, args);
- va_end(args);
- return settings_value_as_double(value, def);
-}
-
-/**
- * Described in header
- */
-inline u_int32_t settings_value_as_time(char *value, u_int32_t def)
-{
- char *endptr;
- u_int32_t timeval;
- if (value)
- {
- errno = 0;
- timeval = strtoul(value, &endptr, 10);
- if (errno == 0)
- {
- switch (*endptr)
- {
- case 'd': /* time in days */
- timeval *= 24 * 3600;
- break;
- case 'h': /* time in hours */
- timeval *= 3600;
- break;
- case 'm': /* time in minutes */
- timeval *= 60;
- break;
- case 's': /* time in seconds */
- default:
- break;
- }
- return timeval;
- }
- }
- return def;
-}
-
-METHOD(settings_t, get_time, u_int32_t,
- private_settings_t *this, char *key, u_int32_t def, ...)
-{
- char *value;
- va_list args;
-
- va_start(args, def);
- value = find_value(this, this->top, key, args);
- va_end(args);
- return settings_value_as_time(value, def);
-}
-
-METHOD(settings_t, set_str, void,
- private_settings_t *this, char *key, char *value, ...)
-{
- va_list args;
- va_start(args, value);
- set_value(this, this->top, key, args, value);
- va_end(args);
-}
-
-METHOD(settings_t, set_bool, void,
- private_settings_t *this, char *key, bool value, ...)
-{
- va_list args;
- va_start(args, value);
- set_value(this, this->top, key, args, value ? "1" : "0");
- va_end(args);
-}
-
-METHOD(settings_t, set_int, void,
- private_settings_t *this, char *key, int value, ...)
-{
- char val[16];
- va_list args;
- va_start(args, value);
- if (snprintf(val, sizeof(val), "%d", value) < sizeof(val))
- {
- set_value(this, this->top, key, args, val);
- }
- va_end(args);
-}
-
-METHOD(settings_t, set_double, void,
- private_settings_t *this, char *key, double value, ...)
-{
- char val[64];
- va_list args;
- va_start(args, value);
- if (snprintf(val, sizeof(val), "%f", value) < sizeof(val))
- {
- set_value(this, this->top, key, args, val);
- }
- va_end(args);
-}
-
-METHOD(settings_t, set_time, void,
- private_settings_t *this, char *key, u_int32_t value, ...)
-{
- char val[16];
- va_list args;
- va_start(args, value);
- if (snprintf(val, sizeof(val), "%u", value) < sizeof(val))
- {
- set_value(this, this->top, key, args, val);
- }
- va_end(args);
-}
-
-/**
- * Enumerate section names, not sections
- */
-static bool section_filter(void *null, section_t **in, char **out)
-{
- *out = (*in)->name;
- return TRUE;
-}
-
-METHOD(settings_t, create_section_enumerator, enumerator_t*,
- private_settings_t *this, char *key, ...)
-{
- section_t *section;
- va_list args;
-
- va_start(args, key);
- section = find_section(this, this->top, key, args);
- va_end(args);
-
- if (!section)
- {
- return enumerator_create_empty();
- }
- this->lock->read_lock(this->lock);
- return enumerator_create_filter(
- section->sections->create_enumerator(section->sections),
- (void*)section_filter, this->lock, (void*)this->lock->unlock);
-}
-
-/**
- * Enumerate key and values, not kv_t entries
- */
-static bool kv_filter(void *null, kv_t **in, char **key,
- void *none, char **value)
-{
- *key = (*in)->key;
- *value = (*in)->value;
- return TRUE;
-}
-
-METHOD(settings_t, create_key_value_enumerator, enumerator_t*,
- private_settings_t *this, char *key, ...)
-{
- section_t *section;
- va_list args;
-
- va_start(args, key);
- section = find_section(this, this->top, key, args);
- va_end(args);
-
- if (!section)
- {
- return enumerator_create_empty();
- }
- this->lock->read_lock(this->lock);
- return enumerator_create_filter(
- section->kv->create_enumerator(section->kv),
- (void*)kv_filter, this->lock, (void*)this->lock->unlock);
-}
-
-/**
- * parse text, truncate "skip" chars, delimited by term respecting brackets.
- *
- * Chars in "skip" are truncated at the beginning and the end of the resulting
- * token. "term" contains a list of characters to read up to (first match),
- * while "br" contains bracket counterparts found in "term" to skip.
- */
-static char parse(char **text, char *skip, char *term, char *br, char **token)
-{
- char *best = NULL;
- char best_term = '\0';
-
- /* skip leading chars */
- while (strchr(skip, **text))
- {
- (*text)++;
- if (!**text)
- {
- return 0;
- }
- }
- /* mark begin of subtext */
- *token = *text;
- while (*term)
- {
- char *pos = *text;
- int level = 1;
-
- /* find terminator */
- while (*pos)
- {
- if (*pos == *term)
- {
- level--;
- }
- else if (br && *pos == *br)
- {
- level++;
- }
- if (level == 0)
- {
- if (best == NULL || best > pos)
- {
- best = pos;
- best_term = *term;
- }
- break;
- }
- pos++;
- }
- /* try next terminator */
- term++;
- if (br)
- {
- br++;
- }
- }
- if (best)
- {
- /* update input */
- *text = best;
- /* null trailing bytes */
- do
- {
- *best = '\0';
- best--;
- }
- while (best >= *token && strchr(skip, *best));
- /* return found terminator */
- return best_term;
- }
- return 0;
-}
-
-/**
- * Check if "text" starts with "pattern".
- * Characters in "skip" are skipped first. If found, TRUE is returned and "text"
- * is modified to point to the character right after "pattern".
- */
-static bool starts_with(char **text, char *skip, char *pattern)
-{
- char *pos = *text;
- int len = strlen(pattern);
- while (strchr(skip, *pos))
- {
- pos++;
- if (!*pos)
- {
- return FALSE;
- }
- }
- if (strlen(pos) < len || !strneq(pos, pattern, len))
- {
- return FALSE;
- }
- *text = pos + len;
- return TRUE;
-}
-
-/**
- * Check if what follows in "text" is an include statement.
- * If this function returns TRUE, "text" will point to the character right after
- * the include pattern, which is returned in "pattern".
- */
-static bool parse_include(char **text, char **pattern)
-{
- char *pos = *text;
- if (!starts_with(&pos, "\n\t ", "include"))
- {
- return FALSE;
- }
- if (starts_with(&pos, "\t ", "="))
- { /* ignore "include = value" */
- return FALSE;
- }
- *text = pos;
- return parse(text, "\t ", "\n", NULL, pattern) != 0;
-}
-
-/**
- * Forward declaration.
- */
-static bool parse_files(linked_list_t *contents, char *file, int level,
- char *pattern, section_t *section);
-
-/**
- * Parse a section
- */
-static bool parse_section(linked_list_t *contents, char *file, int level,
- char **text, section_t *section)
-{
- bool finished = FALSE;
- char *key, *value, *inner;
-
- while (!finished)
- {
- if (parse_include(text, &value))
- {
- if (!parse_files(contents, file, level, value, section))
- {
- DBG1(DBG_LIB, "failed to include '%s'", value);
- return FALSE;
- }
- continue;
- }
- switch (parse(text, "\t\n ", "{=#", NULL, &key))
- {
- case '{':
- if (parse(text, "\t ", "}", "{", &inner))
- {
- section_t *sub;
- if (!strlen(key))
- {
- DBG1(DBG_LIB, "skipping section without name in '%s'",
- section->name);
- continue;
- }
- if (section->sections->find_first(section->sections,
- (linked_list_match_t)section_find,
- (void**)&sub, key) != SUCCESS)
- {
- sub = section_create(key);
- if (parse_section(contents, file, level, &inner, sub))
- {
- section->sections->insert_last(section->sections,
- sub);
- continue;
- }
- section_destroy(sub);
- }
- else
- { /* extend the existing section */
- if (parse_section(contents, file, level, &inner, sub))
- {
- continue;
- }
- }
- DBG1(DBG_LIB, "parsing subsection '%s' failed", key);
- break;
- }
- DBG1(DBG_LIB, "matching '}' not found near %s", *text);
- break;
- case '=':
- if (parse(text, "\t ", "\n", NULL, &value))
- {
- kv_t *kv;
- if (!strlen(key))
- {
- DBG1(DBG_LIB, "skipping value without key in '%s'",
- section->name);
- continue;
- }
- if (section->kv->find_first(section->kv,
- (linked_list_match_t)kv_find,
- (void**)&kv, key) != SUCCESS)
- {
- kv = kv_create(key, value);
- section->kv->insert_last(section->kv, kv);
- }
- else
- { /* replace with the most recently read value */
- kv->value = value;
- }
- continue;
- }
- DBG1(DBG_LIB, "parsing value failed near %s", *text);
- break;
- case '#':
- parse(text, "", "\n", NULL, &value);
- continue;
- default:
- finished = TRUE;
- continue;
- }
- return FALSE;
- }
- return TRUE;
-}
-
-/**
- * Parse a file and add the settings to the given section.
- */
-static bool parse_file(linked_list_t *contents, char *file, int level,
- section_t *section)
-{
- bool success;
- char *text, *pos;
- struct stat st;
- FILE *fd;
- int len;
-
- DBG2(DBG_LIB, "loading config file '%s'", file);
- if (stat(file, &st) == -1)
- {
- if (errno == ENOENT)
- {
- DBG2(DBG_LIB, "'%s' does not exist, ignored", file);
- return TRUE;
- }
- DBG1(DBG_LIB, "failed to stat '%s': %s", file, strerror(errno));
- return FALSE;
- }
- else if (!S_ISREG(st.st_mode))
- {
- DBG1(DBG_LIB, "'%s' is not a regular file", file);
- return FALSE;
- }
- fd = fopen(file, "r");
- if (fd == NULL)
- {
- DBG1(DBG_LIB, "'%s' is not readable", file);
- return FALSE;
- }
- fseek(fd, 0, SEEK_END);
- len = ftell(fd);
- rewind(fd);
- text = malloc(len + 1);
- text[len] = '\0';
- if (fread(text, 1, len, fd) != len)
- {
- free(text);
- fclose(fd);
- return FALSE;
- }
- fclose(fd);
-
- pos = text;
- success = parse_section(contents, file, level, &pos, section);
- if (!success)
- {
- free(text);
- }
- else
- {
- contents->insert_last(contents, text);
- }
- return success;
-}
-
-/**
- * Load the files matching "pattern", which is resolved with glob(3), if
- * available.
- * If the pattern is relative, the directory of "file" is used as base.
- */
-static bool parse_files(linked_list_t *contents, char *file, int level,
- char *pattern, section_t *section)
-{
- bool success = TRUE;
- char pat[PATH_MAX];
-
- if (level > MAX_INCLUSION_LEVEL)
- {
- DBG1(DBG_LIB, "maximum level of %d includes reached, ignored",
- MAX_INCLUSION_LEVEL);
- return TRUE;
- }
-
- if (!strlen(pattern))
- {
- DBG2(DBG_LIB, "empty include pattern, ignored");
- return TRUE;
- }
-
- if (!file || pattern[0] == '/')
- { /* absolute path */
- if (snprintf(pat, sizeof(pat), "%s", pattern) >= sizeof(pat))
- {
- DBG1(DBG_LIB, "include pattern too long, ignored");
- return TRUE;
- }
- }
- else
- { /* base relative paths to the directory of the current file */
- char *dir = strdup(file);
- dir = dirname(dir);
- if (snprintf(pat, sizeof(pat), "%s/%s", dir, pattern) >= sizeof(pat))
- {
- DBG1(DBG_LIB, "include pattern too long, ignored");
- free(dir);
- return TRUE;
- }
- free(dir);
- }
-#ifdef HAVE_GLOB_H
- {
- int status;
- glob_t buf;
-
- status = glob(pat, GLOB_ERR, NULL, &buf);
- if (status == GLOB_NOMATCH)
- {
- DBG2(DBG_LIB, "no files found matching '%s', ignored", pat);
- }
- else if (status != 0)
- {
- DBG1(DBG_LIB, "expanding file pattern '%s' failed", pat);
- success = FALSE;
- }
- else
- {
- char **expanded;
- for (expanded = buf.gl_pathv; *expanded != NULL; expanded++)
- {
- success &= parse_file(contents, *expanded, level + 1, section);
- if (!success)
- {
- break;
- }
- }
- }
- globfree(&buf);
- }
-#else /* HAVE_GLOB_H */
- /* if glob(3) is not available, try to load pattern directly */
- success = parse_file(contents, pat, level + 1, section);
-#endif /* HAVE_GLOB_H */
- return success;
-}
-
-/**
- * Recursivly extends "base" with "extension".
- */
-static void section_extend(section_t *base, section_t *extension)
-{
- enumerator_t *enumerator;
- section_t *sec;
- kv_t *kv;
-
- enumerator = extension->sections->create_enumerator(extension->sections);
- while (enumerator->enumerate(enumerator, (void**)&sec))
- {
- section_t *found;
- if (base->sections->find_first(base->sections,
- (linked_list_match_t)section_find, (void**)&found,
- sec->name) == SUCCESS)
- {
- section_extend(found, sec);
- }
- else
- {
- extension->sections->remove_at(extension->sections, enumerator);
- base->sections->insert_last(base->sections, sec);
- }
- }
- enumerator->destroy(enumerator);
-
- enumerator = extension->kv->create_enumerator(extension->kv);
- while (enumerator->enumerate(enumerator, (void**)&kv))
- {
- kv_t *found;
- if (base->kv->find_first(base->kv, (linked_list_match_t)kv_find,
- (void**)&found, kv->key) == SUCCESS)
- {
- found->value = kv->value;
- }
- else
- {
- extension->kv->remove_at(extension->kv, enumerator);
- base->kv->insert_last(base->kv, kv);
- }
- }
- enumerator->destroy(enumerator);
-}
-
-/**
- * Load settings from files matching the given file pattern.
- * All sections and values are added relative to "parent".
- * All files (even included ones) have to be loaded successfully.
- */
-static bool load_files_internal(private_settings_t *this, section_t *parent,
- char *pattern, bool merge)
-{
- char *text;
- linked_list_t *contents;
- section_t *section;
-
- if (pattern == NULL)
- {
-#ifdef STRONGSWAN_CONF
- pattern = STRONGSWAN_CONF;
-#else
- return FALSE;
-#endif
- }
-
- contents = linked_list_create();
- section = section_create(NULL);
-
- if (!parse_files(contents, NULL, 0, pattern, section))
- {
- contents->destroy_function(contents, (void*)free);
- section_destroy(section);
- return FALSE;
- }
-
- this->lock->write_lock(this->lock);
- if (!merge)
- {
- section_purge(parent);
- }
- /* extend parent section */
- section_extend(parent, section);
- /* move contents of loaded files to main store */
- while (contents->remove_first(contents, (void**)&text) == SUCCESS)
- {
- this->contents->insert_last(this->contents, text);
- }
- this->lock->unlock(this->lock);
-
- section_destroy(section);
- contents->destroy(contents);
- return TRUE;
-}
-
-METHOD(settings_t, load_files, bool,
- private_settings_t *this, char *pattern, bool merge)
-{
- return load_files_internal(this, this->top, pattern, merge);
-}
-
-METHOD(settings_t, load_files_section, bool,
- private_settings_t *this, char *pattern, bool merge, char *key, ...)
-{
- section_t *section;
- va_list args;
-
- va_start(args, key);
- section = ensure_section(this, this->top, key, args);
- va_end(args);
-
- if (!section)
- {
- return FALSE;
- }
- return load_files_internal(this, section, pattern, merge);
-}
-
-METHOD(settings_t, destroy, void,
- private_settings_t *this)
-{
- section_destroy(this->top);
- this->contents->destroy_function(this->contents, (void*)free);
- this->lock->destroy(this->lock);
- free(this);
-}
-
-/*
- * see header file
- */
-settings_t *settings_create(char *file)
-{
- private_settings_t *this;
-
- INIT(this,
- .public = {
- .get_str = _get_str,
- .get_int = _get_int,
- .get_double = _get_double,
- .get_time = _get_time,
- .get_bool = _get_bool,
- .set_str = _set_str,
- .set_int = _set_int,
- .set_double = _set_double,
- .set_time = _set_time,
- .set_bool = _set_bool,
- .create_section_enumerator = _create_section_enumerator,
- .create_key_value_enumerator = _create_key_value_enumerator,
- .load_files = _load_files,
- .load_files_section = _load_files_section,
- .destroy = _destroy,
- },
- .top = section_create(NULL),
- .contents = linked_list_create(),
- .lock = rwlock_create(RWLOCK_TYPE_DEFAULT),
- );
-
- load_files(this, file, FALSE);
-
- return &this->public;
-}
-
+++ /dev/null
-/*
- * Copyright (C) 2010 Tobias Brunner
- * Copyright (C) 2008 Martin Willi
- * Hochschule fuer Technik Rapperswil
- *
- * 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. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * 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.
- */
-
-/**
- * @defgroup settings settings
- * @{ @ingroup libstrongswan
- */
-
-#ifndef SETTINGS_H_
-#define SETTINGS_H_
-
-typedef struct settings_t settings_t;
-
-#include "utils.h"
-#include "collections/enumerator.h"
-
-/**
- * Convert a string value returned by a key/value enumerator to a boolean.
- *
- * @see settings_t.create_key_value_enumerator()
- * @see settings_t.get_bool()
- * @param value the string value
- * @param def the default value, if value is NULL or invalid
- */
-bool settings_value_as_bool(char *value, bool def);
-
-/**
- * Convert a string value returned by a key/value enumerator to an integer.
- *
- * @see settings_t.create_key_value_enumerator()
- * @see settings_t.get_int()
- * @param value the string value
- * @param def the default value, if value is NULL or invalid
- */
-int settings_value_as_int(char *value, int def);
-
-/**
- * Convert a string value returned by a key/value enumerator to a double.
- *
- * @see settings_t.create_key_value_enumerator()
- * @see settings_t.get_double()
- * @param value the string value
- * @param def the default value, if value is NULL or invalid
- */
-double settings_value_as_double(char *value, double def);
-
-/**
- * Convert a string value returned by a key/value enumerator to a time value.
- *
- * @see settings_t.create_key_value_enumerator()
- * @see settings_t.get_time()
- * @param value the string value
- * @param def the default value, if value is NULL or invalid
- */
-u_int32_t settings_value_as_time(char *value, u_int32_t def);
-
-/**
- * Generic configuration options read from a config file.
- *
- * The syntax is quite simple:
- * @code
- * settings := (section|keyvalue)*
- * section := name { settings }
- * keyvalue := key = value\n
- * @endcode
- * E.g.:
- * @code
- a = b
- section-one {
- somevalue = asdf
- subsection {
- othervalue = xxx
- }
- yetanother = zz
- }
- section-two {
- }
- @endcode
- *
- * The values are accessed using the get() functions using dotted keys, e.g.
- * section-one.subsection.othervalue
- *
- * Currently only a limited set of printf format specifiers are supported
- * (namely %s, %d and %N, see implementation for details).
- *
- * \section includes Including other files
- * Other files can be included, using the include statement e.g.
- * @code
- * include /somepath/subconfig.conf
- * @endcode
- * Shell patterns like *.conf are possible.
- *
- * If the path is relative, the directory of the file containing the include
- * statement is used as base.
- *
- * Sections loaded from included files extend previously loaded sections,
- * already existing values are replaced.
- *
- * All settings included from files are added relative to the section the
- * include statement is in.
- *
- * The following files result in the same final config as above:
- *
- * @code
- a = b
- section-one {
- somevalue = before include
- include include.conf
- }
- include two.conf
- @endcode
- * include.conf
- * @code
- somevalue = asdf
- subsection {
- othervalue = yyy
- }
- yetanother = zz
- @endcode
- * two.conf
- * @code
- section-one {
- subsection {
- othervalue = xxx
- }
- }
- section-two {
- }
- @endcode
- */
-struct settings_t {
-
- /**
- * Get a settings value as a string.
- *
- * @param key key including sections, printf style format
- * @param def value returned if key not found
- * @param ... argument list for key
- * @return value pointing to internal string
- */
- char* (*get_str)(settings_t *this, char *key, char *def, ...);
-
- /**
- * Get a boolean yes|no, true|false value.
- *
- * @param key key including sections, printf style format
- * @param def value returned if key not found
- * @param ... argument list for key
- * @return value of the key
- */
- bool (*get_bool)(settings_t *this, char *key, bool def, ...);
-
- /**
- * Get an integer value.
- *
- * @param key key including sections, printf style format
- * @param def value returned if key not found
- * @param ... argument list for key
- * @return value of the key
- */
- int (*get_int)(settings_t *this, char *key, int def, ...);
-
- /**
- * Get an double value.
- *
- * @param key key including sections, printf style format
- * @param def value returned if key not found
- * @param ... argument list for key
- * @return value of the key
- */
- double (*get_double)(settings_t *this, char *key, double def, ...);
-
- /**
- * Get a time value.
- *
- * @param key key including sections, printf style format
- * @param def value returned if key not found
- * @param ... argument list for key
- * @return value of the key (in seconds)
- */
- u_int32_t (*get_time)(settings_t *this, char *key, u_int32_t def, ...);
-
- /**
- * Set a string value.
- *
- * @param key key including sections, printf style format
- * @param value value to set (gets cloned)
- * @param ... argument list for key
- */
- void (*set_str)(settings_t *this, char *key, char *value, ...);
-
- /**
- * Set a boolean value.
- *
- * @param key key including sections, printf style format
- * @param value value to set
- * @param ... argument list for key
- */
- void (*set_bool)(settings_t *this, char *key, bool value, ...);
-
- /**
- * Set an integer value.
- *
- * @param key key including sections, printf style format
- * @param value value to set
- * @param ... argument list for key
- */
- void (*set_int)(settings_t *this, char *key, int value, ...);
-
- /**
- * Set an double value.
- *
- * @param key key including sections, printf style format
- * @param value value to set
- * @param ... argument list for key
- */
- void (*set_double)(settings_t *this, char *key, double value, ...);
-
- /**
- * Set a time value.
- *
- * @param key key including sections, printf style format
- * @param def value to set
- * @param ... argument list for key
- */
- void (*set_time)(settings_t *this, char *key, u_int32_t value, ...);
-
- /**
- * Create an enumerator over subsection names of a section.
- *
- * @param section section including parents, printf style format
- * @param ... argument list for key
- * @return enumerator over subsection names
- */
- enumerator_t* (*create_section_enumerator)(settings_t *this,
- char *section, ...);
-
- /**
- * Create an enumerator over key/value pairs in a section.
- *
- * @param section section name to list key/value pairs of, printf style
- * @param ... argument list for section
- * @return enumerator over (char *key, char *value)
- */
- enumerator_t* (*create_key_value_enumerator)(settings_t *this,
- char *section, ...);
-
- /**
- * Load settings from the files matching the given pattern.
- *
- * If merge is TRUE, existing sections are extended, existing values
- * replaced, by those found in the loaded files. If it is FALSE, existing
- * sections are purged before reading the new config.
- *
- * @note If any of the files matching the pattern fails to load, no settings
- * are added at all. So, it's all or nothing.
- *
- * @param pattern file pattern
- * @param merge TRUE to merge config with existing values
- * @return TRUE, if settings were loaded successfully
- */
- bool (*load_files)(settings_t *this, char *pattern, bool merge);
-
- /**
- * Load settings from the files matching the given pattern.
- *
- * If merge is TRUE, existing sections are extended, existing values
- * replaced, by those found in the loaded files. If it is FALSE, existing
- * sections are purged before reading the new config.
- *
- * All settings are loaded relative to the given section. The section is
- * created, if it does not yet exist.
- *
- * @note If any of the files matching the pattern fails to load, no settings
- * are added at all. So, it's all or nothing.
- *
- * @param pattern file pattern
- * @param merge TRUE to merge config with existing values
- * @param section section name of parent section, printf style
- * @param ... argument list for section
- * @return TRUE, if settings were loaded successfully
- */
- bool (*load_files_section)(settings_t *this, char *pattern, bool merge,
- char *section, ...);
-
- /**
- * Destroy a settings instance.
- */
- void (*destroy)(settings_t *this);
-};
-
-/**
- * Load settings from a file.
- *
- * @param file file to read settings from, NULL for default
- * @return settings object
- */
-settings_t *settings_create(char *file);
-
-#endif /** SETTINGS_H_ @}*/
--- /dev/null
+/*
+ * Copyright (C) 2010 Tobias Brunner
+ * Copyright (C) 2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <errno.h>
+#include <limits.h>
+#include <libgen.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#ifdef HAVE_GLOB_H
+#include <glob.h>
+#endif /* HAVE_GLOB_H */
+
+#include "settings.h"
+
+#include "collections/linked_list.h"
+#include "threading/rwlock.h"
+#include "utils/debug.h"
+
+#define MAX_INCLUSION_LEVEL 10
+
+typedef struct private_settings_t private_settings_t;
+typedef struct section_t section_t;
+typedef struct kv_t kv_t;
+
+/**
+ * private data of settings
+ */
+struct private_settings_t {
+
+ /**
+ * public functions
+ */
+ settings_t public;
+
+ /**
+ * top level section
+ */
+ section_t *top;
+
+ /**
+ * contents of loaded files and in-memory settings (char*)
+ */
+ linked_list_t *contents;
+
+ /**
+ * lock to safely access the settings
+ */
+ rwlock_t *lock;
+};
+
+/**
+ * section containing subsections and key value pairs
+ */
+struct section_t {
+
+ /**
+ * name of the section
+ */
+ char *name;
+
+ /**
+ * subsections, as section_t
+ */
+ linked_list_t *sections;
+
+ /**
+ * key value pairs, as kv_t
+ */
+ linked_list_t *kv;
+};
+
+/**
+ * Key value pair
+ */
+struct kv_t {
+
+ /**
+ * key string, relative
+ */
+ char *key;
+
+ /**
+ * value as string
+ */
+ char *value;
+};
+
+/**
+ * create a key/value pair
+ */
+static kv_t *kv_create(char *key, char *value)
+{
+ kv_t *this;
+ INIT(this,
+ .key = strdup(key),
+ .value = value,
+ );
+ return this;
+}
+
+/**
+ * destroy a key/value pair
+ */
+static void kv_destroy(kv_t *this)
+{
+ free(this->key);
+ free(this);
+}
+
+/**
+ * create a section with the given name
+ */
+static section_t *section_create(char *name)
+{
+ section_t *this;
+ INIT(this,
+ .name = strdupnull(name),
+ .sections = linked_list_create(),
+ .kv = linked_list_create(),
+ );
+ return this;
+}
+
+/**
+ * destroy a section
+ */
+static void section_destroy(section_t *this)
+{
+ this->kv->destroy_function(this->kv, (void*)kv_destroy);
+ this->sections->destroy_function(this->sections, (void*)section_destroy);
+ free(this->name);
+ free(this);
+}
+
+/**
+ * Purge contents of a section
+ */
+static void section_purge(section_t *this)
+{
+ this->kv->destroy_function(this->kv, (void*)kv_destroy);
+ this->kv = linked_list_create();
+ this->sections->destroy_function(this->sections, (void*)section_destroy);
+ this->sections = linked_list_create();
+}
+
+/**
+ * callback to find a section by name
+ */
+static bool section_find(section_t *this, char *name)
+{
+ return streq(this->name, name);
+}
+
+/**
+ * callback to find a kv pair by key
+ */
+static bool kv_find(kv_t *this, char *key)
+{
+ return streq(this->key, key);
+}
+
+/**
+ * Print a format key, but consume already processed arguments
+ */
+static bool print_key(char *buf, int len, char *start, char *key, va_list args)
+{
+ va_list copy;
+ bool res;
+ char *pos;
+
+ va_copy(copy, args);
+ while (start < key)
+ {
+ pos = strchr(start, '%');
+ if (!pos)
+ {
+ start += strlen(start) + 1;
+ continue;
+ }
+ pos++;
+ switch (*pos)
+ {
+ case 'd':
+ va_arg(copy, int);
+ break;
+ case 's':
+ va_arg(copy, char*);
+ break;
+ case 'N':
+ va_arg(copy, enum_name_t*);
+ va_arg(copy, int);
+ break;
+ case '%':
+ break;
+ default:
+ DBG1(DBG_CFG, "settings with %%%c not supported!", *pos);
+ break;
+ }
+ start = pos;
+ if (*start)
+ {
+ start++;
+ }
+ }
+ res = vsnprintf(buf, len, key, copy) < len;
+ va_end(copy);
+ return res;
+}
+
+/**
+ * Find a section by a given key, using buffered key, reusable buffer.
+ * If "ensure" is TRUE, the sections are created if they don't exist.
+ */
+static section_t *find_section_buffered(section_t *section,
+ char *start, char *key, va_list args, char *buf, int len,
+ bool ensure)
+{
+ char *pos;
+ section_t *found = NULL;
+
+ if (section == NULL)
+ {
+ return NULL;
+ }
+ pos = strchr(key, '.');
+ if (pos)
+ {
+ *pos = '\0';
+ pos++;
+ }
+ if (!print_key(buf, len, start, key, args))
+ {
+ return NULL;
+ }
+ if (section->sections->find_first(section->sections,
+ (linked_list_match_t)section_find,
+ (void**)&found, buf) != SUCCESS)
+ {
+ if (ensure)
+ {
+ found = section_create(buf);
+ section->sections->insert_last(section->sections, found);
+ }
+ }
+ if (found && pos)
+ {
+ return find_section_buffered(found, start, pos, args, buf, len, ensure);
+ }
+ return found;
+}
+
+/**
+ * Find a section by a given key (thread-safe).
+ */
+static section_t *find_section(private_settings_t *this, section_t *section,
+ char *key, va_list args)
+{
+ char buf[128], keybuf[512];
+ section_t *found;
+
+ if (snprintf(keybuf, sizeof(keybuf), "%s", key) >= sizeof(keybuf))
+ {
+ return NULL;
+ }
+ this->lock->read_lock(this->lock);
+ found = find_section_buffered(section, keybuf, keybuf, args, buf,
+ sizeof(buf), FALSE);
+ this->lock->unlock(this->lock);
+ return found;
+}
+
+/**
+ * Ensure that the section with the given key exists (thread-safe).
+ */
+static section_t *ensure_section(private_settings_t *this, section_t *section,
+ char *key, va_list args)
+{
+ char buf[128], keybuf[512];
+ section_t *found;
+
+ if (snprintf(keybuf, sizeof(keybuf), "%s", key) >= sizeof(keybuf))
+ {
+ return NULL;
+ }
+ /* we might have to change the tree */
+ this->lock->write_lock(this->lock);
+ found = find_section_buffered(section, keybuf, keybuf, args, buf,
+ sizeof(buf), TRUE);
+ this->lock->unlock(this->lock);
+ return found;
+}
+
+/**
+ * Find the key/value pair for a key, using buffered key, reusable buffer
+ * If "ensure" is TRUE, the sections (and key/value pair) are created if they
+ * don't exist.
+ */
+static kv_t *find_value_buffered(section_t *section, char *start, char *key,
+ va_list args, char *buf, int len, bool ensure)
+{
+ char *pos;
+ kv_t *kv = NULL;
+ section_t *found = NULL;
+
+ if (section == NULL)
+ {
+ return NULL;
+ }
+
+ pos = strchr(key, '.');
+ if (pos)
+ {
+ *pos = '\0';
+ pos++;
+
+ if (!print_key(buf, len, start, key, args))
+ {
+ return NULL;
+ }
+ if (section->sections->find_first(section->sections,
+ (linked_list_match_t)section_find,
+ (void**)&found, buf) != SUCCESS)
+ {
+ if (!ensure)
+ {
+ return NULL;
+ }
+ found = section_create(buf);
+ section->sections->insert_last(section->sections, found);
+ }
+ return find_value_buffered(found, start, pos, args, buf, len,
+ ensure);
+ }
+ else
+ {
+ if (!print_key(buf, len, start, key, args))
+ {
+ return NULL;
+ }
+ if (section->kv->find_first(section->kv, (linked_list_match_t)kv_find,
+ (void**)&kv, buf) != SUCCESS)
+ {
+ if (ensure)
+ {
+ kv = kv_create(buf, NULL);
+ section->kv->insert_last(section->kv, kv);
+ }
+ }
+ }
+ return kv;
+}
+
+/**
+ * Find the string value for a key (thread-safe).
+ */
+static char *find_value(private_settings_t *this, section_t *section,
+ char *key, va_list args)
+{
+ char buf[128], keybuf[512], *value = NULL;
+ kv_t *kv;
+
+ if (snprintf(keybuf, sizeof(keybuf), "%s", key) >= sizeof(keybuf))
+ {
+ return NULL;
+ }
+ this->lock->read_lock(this->lock);
+ kv = find_value_buffered(section, keybuf, keybuf, args, buf, sizeof(buf),
+ FALSE);
+ if (kv)
+ {
+ value = kv->value;
+ }
+ this->lock->unlock(this->lock);
+ return value;
+}
+
+/**
+ * Set a value to a copy of the given string (thread-safe).
+ */
+static void set_value(private_settings_t *this, section_t *section,
+ char *key, va_list args, char *value)
+{
+ char buf[128], keybuf[512];
+ kv_t *kv;
+
+ if (snprintf(keybuf, sizeof(keybuf), "%s", key) >= sizeof(keybuf))
+ {
+ return;
+ }
+ this->lock->write_lock(this->lock);
+ kv = find_value_buffered(section, keybuf, keybuf, args, buf, sizeof(buf),
+ TRUE);
+ if (kv)
+ {
+ if (!value)
+ {
+ kv->value = NULL;
+ }
+ else if (kv->value && (strlen(value) <= strlen(kv->value)))
+ { /* overwrite in-place, if possible */
+ strcpy(kv->value, value);
+ }
+ else
+ { /* otherwise clone the string and store it in the cache */
+ kv->value = strdup(value);
+ this->contents->insert_last(this->contents, kv->value);
+ }
+ }
+ this->lock->unlock(this->lock);
+}
+
+METHOD(settings_t, get_str, char*,
+ private_settings_t *this, char *key, char *def, ...)
+{
+ char *value;
+ va_list args;
+
+ va_start(args, def);
+ value = find_value(this, this->top, key, args);
+ va_end(args);
+ if (value)
+ {
+ return value;
+ }
+ return def;
+}
+
+/**
+ * Described in header
+ */
+inline bool settings_value_as_bool(char *value, bool def)
+{
+ if (value)
+ {
+ if (strcaseeq(value, "1") ||
+ strcaseeq(value, "yes") ||
+ strcaseeq(value, "true") ||
+ strcaseeq(value, "enabled"))
+ {
+ return TRUE;
+ }
+ else if (strcaseeq(value, "0") ||
+ strcaseeq(value, "no") ||
+ strcaseeq(value, "false") ||
+ strcaseeq(value, "disabled"))
+ {
+ return FALSE;
+ }
+ }
+ return def;
+}
+
+METHOD(settings_t, get_bool, bool,
+ private_settings_t *this, char *key, bool def, ...)
+{
+ char *value;
+ va_list args;
+
+ va_start(args, def);
+ value = find_value(this, this->top, key, args);
+ va_end(args);
+ return settings_value_as_bool(value, def);
+}
+
+/**
+ * Described in header
+ */
+inline int settings_value_as_int(char *value, int def)
+{
+ int intval;
+ if (value)
+ {
+ errno = 0;
+ intval = strtol(value, NULL, 10);
+ if (errno == 0)
+ {
+ return intval;
+ }
+ }
+ return def;
+}
+
+METHOD(settings_t, get_int, int,
+ private_settings_t *this, char *key, int def, ...)
+{
+ char *value;
+ va_list args;
+
+ va_start(args, def);
+ value = find_value(this, this->top, key, args);
+ va_end(args);
+ return settings_value_as_int(value, def);
+}
+
+/**
+ * Described in header
+ */
+inline double settings_value_as_double(char *value, double def)
+{
+ double dval;
+ if (value)
+ {
+ errno = 0;
+ dval = strtod(value, NULL);
+ if (errno == 0)
+ {
+ return dval;
+ }
+ }
+ return def;
+}
+
+METHOD(settings_t, get_double, double,
+ private_settings_t *this, char *key, double def, ...)
+{
+ char *value;
+ va_list args;
+
+ va_start(args, def);
+ value = find_value(this, this->top, key, args);
+ va_end(args);
+ return settings_value_as_double(value, def);
+}
+
+/**
+ * Described in header
+ */
+inline u_int32_t settings_value_as_time(char *value, u_int32_t def)
+{
+ char *endptr;
+ u_int32_t timeval;
+ if (value)
+ {
+ errno = 0;
+ timeval = strtoul(value, &endptr, 10);
+ if (errno == 0)
+ {
+ switch (*endptr)
+ {
+ case 'd': /* time in days */
+ timeval *= 24 * 3600;
+ break;
+ case 'h': /* time in hours */
+ timeval *= 3600;
+ break;
+ case 'm': /* time in minutes */
+ timeval *= 60;
+ break;
+ case 's': /* time in seconds */
+ default:
+ break;
+ }
+ return timeval;
+ }
+ }
+ return def;
+}
+
+METHOD(settings_t, get_time, u_int32_t,
+ private_settings_t *this, char *key, u_int32_t def, ...)
+{
+ char *value;
+ va_list args;
+
+ va_start(args, def);
+ value = find_value(this, this->top, key, args);
+ va_end(args);
+ return settings_value_as_time(value, def);
+}
+
+METHOD(settings_t, set_str, void,
+ private_settings_t *this, char *key, char *value, ...)
+{
+ va_list args;
+ va_start(args, value);
+ set_value(this, this->top, key, args, value);
+ va_end(args);
+}
+
+METHOD(settings_t, set_bool, void,
+ private_settings_t *this, char *key, bool value, ...)
+{
+ va_list args;
+ va_start(args, value);
+ set_value(this, this->top, key, args, value ? "1" : "0");
+ va_end(args);
+}
+
+METHOD(settings_t, set_int, void,
+ private_settings_t *this, char *key, int value, ...)
+{
+ char val[16];
+ va_list args;
+ va_start(args, value);
+ if (snprintf(val, sizeof(val), "%d", value) < sizeof(val))
+ {
+ set_value(this, this->top, key, args, val);
+ }
+ va_end(args);
+}
+
+METHOD(settings_t, set_double, void,
+ private_settings_t *this, char *key, double value, ...)
+{
+ char val[64];
+ va_list args;
+ va_start(args, value);
+ if (snprintf(val, sizeof(val), "%f", value) < sizeof(val))
+ {
+ set_value(this, this->top, key, args, val);
+ }
+ va_end(args);
+}
+
+METHOD(settings_t, set_time, void,
+ private_settings_t *this, char *key, u_int32_t value, ...)
+{
+ char val[16];
+ va_list args;
+ va_start(args, value);
+ if (snprintf(val, sizeof(val), "%u", value) < sizeof(val))
+ {
+ set_value(this, this->top, key, args, val);
+ }
+ va_end(args);
+}
+
+/**
+ * Enumerate section names, not sections
+ */
+static bool section_filter(void *null, section_t **in, char **out)
+{
+ *out = (*in)->name;
+ return TRUE;
+}
+
+METHOD(settings_t, create_section_enumerator, enumerator_t*,
+ private_settings_t *this, char *key, ...)
+{
+ section_t *section;
+ va_list args;
+
+ va_start(args, key);
+ section = find_section(this, this->top, key, args);
+ va_end(args);
+
+ if (!section)
+ {
+ return enumerator_create_empty();
+ }
+ this->lock->read_lock(this->lock);
+ return enumerator_create_filter(
+ section->sections->create_enumerator(section->sections),
+ (void*)section_filter, this->lock, (void*)this->lock->unlock);
+}
+
+/**
+ * Enumerate key and values, not kv_t entries
+ */
+static bool kv_filter(void *null, kv_t **in, char **key,
+ void *none, char **value)
+{
+ *key = (*in)->key;
+ *value = (*in)->value;
+ return TRUE;
+}
+
+METHOD(settings_t, create_key_value_enumerator, enumerator_t*,
+ private_settings_t *this, char *key, ...)
+{
+ section_t *section;
+ va_list args;
+
+ va_start(args, key);
+ section = find_section(this, this->top, key, args);
+ va_end(args);
+
+ if (!section)
+ {
+ return enumerator_create_empty();
+ }
+ this->lock->read_lock(this->lock);
+ return enumerator_create_filter(
+ section->kv->create_enumerator(section->kv),
+ (void*)kv_filter, this->lock, (void*)this->lock->unlock);
+}
+
+/**
+ * parse text, truncate "skip" chars, delimited by term respecting brackets.
+ *
+ * Chars in "skip" are truncated at the beginning and the end of the resulting
+ * token. "term" contains a list of characters to read up to (first match),
+ * while "br" contains bracket counterparts found in "term" to skip.
+ */
+static char parse(char **text, char *skip, char *term, char *br, char **token)
+{
+ char *best = NULL;
+ char best_term = '\0';
+
+ /* skip leading chars */
+ while (strchr(skip, **text))
+ {
+ (*text)++;
+ if (!**text)
+ {
+ return 0;
+ }
+ }
+ /* mark begin of subtext */
+ *token = *text;
+ while (*term)
+ {
+ char *pos = *text;
+ int level = 1;
+
+ /* find terminator */
+ while (*pos)
+ {
+ if (*pos == *term)
+ {
+ level--;
+ }
+ else if (br && *pos == *br)
+ {
+ level++;
+ }
+ if (level == 0)
+ {
+ if (best == NULL || best > pos)
+ {
+ best = pos;
+ best_term = *term;
+ }
+ break;
+ }
+ pos++;
+ }
+ /* try next terminator */
+ term++;
+ if (br)
+ {
+ br++;
+ }
+ }
+ if (best)
+ {
+ /* update input */
+ *text = best;
+ /* null trailing bytes */
+ do
+ {
+ *best = '\0';
+ best--;
+ }
+ while (best >= *token && strchr(skip, *best));
+ /* return found terminator */
+ return best_term;
+ }
+ return 0;
+}
+
+/**
+ * Check if "text" starts with "pattern".
+ * Characters in "skip" are skipped first. If found, TRUE is returned and "text"
+ * is modified to point to the character right after "pattern".
+ */
+static bool starts_with(char **text, char *skip, char *pattern)
+{
+ char *pos = *text;
+ int len = strlen(pattern);
+ while (strchr(skip, *pos))
+ {
+ pos++;
+ if (!*pos)
+ {
+ return FALSE;
+ }
+ }
+ if (strlen(pos) < len || !strneq(pos, pattern, len))
+ {
+ return FALSE;
+ }
+ *text = pos + len;
+ return TRUE;
+}
+
+/**
+ * Check if what follows in "text" is an include statement.
+ * If this function returns TRUE, "text" will point to the character right after
+ * the include pattern, which is returned in "pattern".
+ */
+static bool parse_include(char **text, char **pattern)
+{
+ char *pos = *text;
+ if (!starts_with(&pos, "\n\t ", "include"))
+ {
+ return FALSE;
+ }
+ if (starts_with(&pos, "\t ", "="))
+ { /* ignore "include = value" */
+ return FALSE;
+ }
+ *text = pos;
+ return parse(text, "\t ", "\n", NULL, pattern) != 0;
+}
+
+/**
+ * Forward declaration.
+ */
+static bool parse_files(linked_list_t *contents, char *file, int level,
+ char *pattern, section_t *section);
+
+/**
+ * Parse a section
+ */
+static bool parse_section(linked_list_t *contents, char *file, int level,
+ char **text, section_t *section)
+{
+ bool finished = FALSE;
+ char *key, *value, *inner;
+
+ while (!finished)
+ {
+ if (parse_include(text, &value))
+ {
+ if (!parse_files(contents, file, level, value, section))
+ {
+ DBG1(DBG_LIB, "failed to include '%s'", value);
+ return FALSE;
+ }
+ continue;
+ }
+ switch (parse(text, "\t\n ", "{=#", NULL, &key))
+ {
+ case '{':
+ if (parse(text, "\t ", "}", "{", &inner))
+ {
+ section_t *sub;
+ if (!strlen(key))
+ {
+ DBG1(DBG_LIB, "skipping section without name in '%s'",
+ section->name);
+ continue;
+ }
+ if (section->sections->find_first(section->sections,
+ (linked_list_match_t)section_find,
+ (void**)&sub, key) != SUCCESS)
+ {
+ sub = section_create(key);
+ if (parse_section(contents, file, level, &inner, sub))
+ {
+ section->sections->insert_last(section->sections,
+ sub);
+ continue;
+ }
+ section_destroy(sub);
+ }
+ else
+ { /* extend the existing section */
+ if (parse_section(contents, file, level, &inner, sub))
+ {
+ continue;
+ }
+ }
+ DBG1(DBG_LIB, "parsing subsection '%s' failed", key);
+ break;
+ }
+ DBG1(DBG_LIB, "matching '}' not found near %s", *text);
+ break;
+ case '=':
+ if (parse(text, "\t ", "\n", NULL, &value))
+ {
+ kv_t *kv;
+ if (!strlen(key))
+ {
+ DBG1(DBG_LIB, "skipping value without key in '%s'",
+ section->name);
+ continue;
+ }
+ if (section->kv->find_first(section->kv,
+ (linked_list_match_t)kv_find,
+ (void**)&kv, key) != SUCCESS)
+ {
+ kv = kv_create(key, value);
+ section->kv->insert_last(section->kv, kv);
+ }
+ else
+ { /* replace with the most recently read value */
+ kv->value = value;
+ }
+ continue;
+ }
+ DBG1(DBG_LIB, "parsing value failed near %s", *text);
+ break;
+ case '#':
+ parse(text, "", "\n", NULL, &value);
+ continue;
+ default:
+ finished = TRUE;
+ continue;
+ }
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/**
+ * Parse a file and add the settings to the given section.
+ */
+static bool parse_file(linked_list_t *contents, char *file, int level,
+ section_t *section)
+{
+ bool success;
+ char *text, *pos;
+ struct stat st;
+ FILE *fd;
+ int len;
+
+ DBG2(DBG_LIB, "loading config file '%s'", file);
+ if (stat(file, &st) == -1)
+ {
+ if (errno == ENOENT)
+ {
+ DBG2(DBG_LIB, "'%s' does not exist, ignored", file);
+ return TRUE;
+ }
+ DBG1(DBG_LIB, "failed to stat '%s': %s", file, strerror(errno));
+ return FALSE;
+ }
+ else if (!S_ISREG(st.st_mode))
+ {
+ DBG1(DBG_LIB, "'%s' is not a regular file", file);
+ return FALSE;
+ }
+ fd = fopen(file, "r");
+ if (fd == NULL)
+ {
+ DBG1(DBG_LIB, "'%s' is not readable", file);
+ return FALSE;
+ }
+ fseek(fd, 0, SEEK_END);
+ len = ftell(fd);
+ rewind(fd);
+ text = malloc(len + 1);
+ text[len] = '\0';
+ if (fread(text, 1, len, fd) != len)
+ {
+ free(text);
+ fclose(fd);
+ return FALSE;
+ }
+ fclose(fd);
+
+ pos = text;
+ success = parse_section(contents, file, level, &pos, section);
+ if (!success)
+ {
+ free(text);
+ }
+ else
+ {
+ contents->insert_last(contents, text);
+ }
+ return success;
+}
+
+/**
+ * Load the files matching "pattern", which is resolved with glob(3), if
+ * available.
+ * If the pattern is relative, the directory of "file" is used as base.
+ */
+static bool parse_files(linked_list_t *contents, char *file, int level,
+ char *pattern, section_t *section)
+{
+ bool success = TRUE;
+ char pat[PATH_MAX];
+
+ if (level > MAX_INCLUSION_LEVEL)
+ {
+ DBG1(DBG_LIB, "maximum level of %d includes reached, ignored",
+ MAX_INCLUSION_LEVEL);
+ return TRUE;
+ }
+
+ if (!strlen(pattern))
+ {
+ DBG2(DBG_LIB, "empty include pattern, ignored");
+ return TRUE;
+ }
+
+ if (!file || pattern[0] == '/')
+ { /* absolute path */
+ if (snprintf(pat, sizeof(pat), "%s", pattern) >= sizeof(pat))
+ {
+ DBG1(DBG_LIB, "include pattern too long, ignored");
+ return TRUE;
+ }
+ }
+ else
+ { /* base relative paths to the directory of the current file */
+ char *dir = strdup(file);
+ dir = dirname(dir);
+ if (snprintf(pat, sizeof(pat), "%s/%s", dir, pattern) >= sizeof(pat))
+ {
+ DBG1(DBG_LIB, "include pattern too long, ignored");
+ free(dir);
+ return TRUE;
+ }
+ free(dir);
+ }
+#ifdef HAVE_GLOB_H
+ {
+ int status;
+ glob_t buf;
+
+ status = glob(pat, GLOB_ERR, NULL, &buf);
+ if (status == GLOB_NOMATCH)
+ {
+ DBG2(DBG_LIB, "no files found matching '%s', ignored", pat);
+ }
+ else if (status != 0)
+ {
+ DBG1(DBG_LIB, "expanding file pattern '%s' failed", pat);
+ success = FALSE;
+ }
+ else
+ {
+ char **expanded;
+ for (expanded = buf.gl_pathv; *expanded != NULL; expanded++)
+ {
+ success &= parse_file(contents, *expanded, level + 1, section);
+ if (!success)
+ {
+ break;
+ }
+ }
+ }
+ globfree(&buf);
+ }
+#else /* HAVE_GLOB_H */
+ /* if glob(3) is not available, try to load pattern directly */
+ success = parse_file(contents, pat, level + 1, section);
+#endif /* HAVE_GLOB_H */
+ return success;
+}
+
+/**
+ * Recursivly extends "base" with "extension".
+ */
+static void section_extend(section_t *base, section_t *extension)
+{
+ enumerator_t *enumerator;
+ section_t *sec;
+ kv_t *kv;
+
+ enumerator = extension->sections->create_enumerator(extension->sections);
+ while (enumerator->enumerate(enumerator, (void**)&sec))
+ {
+ section_t *found;
+ if (base->sections->find_first(base->sections,
+ (linked_list_match_t)section_find, (void**)&found,
+ sec->name) == SUCCESS)
+ {
+ section_extend(found, sec);
+ }
+ else
+ {
+ extension->sections->remove_at(extension->sections, enumerator);
+ base->sections->insert_last(base->sections, sec);
+ }
+ }
+ enumerator->destroy(enumerator);
+
+ enumerator = extension->kv->create_enumerator(extension->kv);
+ while (enumerator->enumerate(enumerator, (void**)&kv))
+ {
+ kv_t *found;
+ if (base->kv->find_first(base->kv, (linked_list_match_t)kv_find,
+ (void**)&found, kv->key) == SUCCESS)
+ {
+ found->value = kv->value;
+ }
+ else
+ {
+ extension->kv->remove_at(extension->kv, enumerator);
+ base->kv->insert_last(base->kv, kv);
+ }
+ }
+ enumerator->destroy(enumerator);
+}
+
+/**
+ * Load settings from files matching the given file pattern.
+ * All sections and values are added relative to "parent".
+ * All files (even included ones) have to be loaded successfully.
+ */
+static bool load_files_internal(private_settings_t *this, section_t *parent,
+ char *pattern, bool merge)
+{
+ char *text;
+ linked_list_t *contents;
+ section_t *section;
+
+ if (pattern == NULL)
+ {
+#ifdef STRONGSWAN_CONF
+ pattern = STRONGSWAN_CONF;
+#else
+ return FALSE;
+#endif
+ }
+
+ contents = linked_list_create();
+ section = section_create(NULL);
+
+ if (!parse_files(contents, NULL, 0, pattern, section))
+ {
+ contents->destroy_function(contents, (void*)free);
+ section_destroy(section);
+ return FALSE;
+ }
+
+ this->lock->write_lock(this->lock);
+ if (!merge)
+ {
+ section_purge(parent);
+ }
+ /* extend parent section */
+ section_extend(parent, section);
+ /* move contents of loaded files to main store */
+ while (contents->remove_first(contents, (void**)&text) == SUCCESS)
+ {
+ this->contents->insert_last(this->contents, text);
+ }
+ this->lock->unlock(this->lock);
+
+ section_destroy(section);
+ contents->destroy(contents);
+ return TRUE;
+}
+
+METHOD(settings_t, load_files, bool,
+ private_settings_t *this, char *pattern, bool merge)
+{
+ return load_files_internal(this, this->top, pattern, merge);
+}
+
+METHOD(settings_t, load_files_section, bool,
+ private_settings_t *this, char *pattern, bool merge, char *key, ...)
+{
+ section_t *section;
+ va_list args;
+
+ va_start(args, key);
+ section = ensure_section(this, this->top, key, args);
+ va_end(args);
+
+ if (!section)
+ {
+ return FALSE;
+ }
+ return load_files_internal(this, section, pattern, merge);
+}
+
+METHOD(settings_t, destroy, void,
+ private_settings_t *this)
+{
+ section_destroy(this->top);
+ this->contents->destroy_function(this->contents, (void*)free);
+ this->lock->destroy(this->lock);
+ free(this);
+}
+
+/*
+ * see header file
+ */
+settings_t *settings_create(char *file)
+{
+ private_settings_t *this;
+
+ INIT(this,
+ .public = {
+ .get_str = _get_str,
+ .get_int = _get_int,
+ .get_double = _get_double,
+ .get_time = _get_time,
+ .get_bool = _get_bool,
+ .set_str = _set_str,
+ .set_int = _set_int,
+ .set_double = _set_double,
+ .set_time = _set_time,
+ .set_bool = _set_bool,
+ .create_section_enumerator = _create_section_enumerator,
+ .create_key_value_enumerator = _create_key_value_enumerator,
+ .load_files = _load_files,
+ .load_files_section = _load_files_section,
+ .destroy = _destroy,
+ },
+ .top = section_create(NULL),
+ .contents = linked_list_create(),
+ .lock = rwlock_create(RWLOCK_TYPE_DEFAULT),
+ );
+
+ load_files(this, file, FALSE);
+
+ return &this->public;
+}
+
--- /dev/null
+/*
+ * Copyright (C) 2010 Tobias Brunner
+ * Copyright (C) 2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+/**
+ * @defgroup settings settings
+ * @{ @ingroup utils
+ */
+
+#ifndef SETTINGS_H_
+#define SETTINGS_H_
+
+typedef struct settings_t settings_t;
+
+#include "../utils.h"
+#include "collections/enumerator.h"
+
+/**
+ * Convert a string value returned by a key/value enumerator to a boolean.
+ *
+ * @see settings_t.create_key_value_enumerator()
+ * @see settings_t.get_bool()
+ * @param value the string value
+ * @param def the default value, if value is NULL or invalid
+ */
+bool settings_value_as_bool(char *value, bool def);
+
+/**
+ * Convert a string value returned by a key/value enumerator to an integer.
+ *
+ * @see settings_t.create_key_value_enumerator()
+ * @see settings_t.get_int()
+ * @param value the string value
+ * @param def the default value, if value is NULL or invalid
+ */
+int settings_value_as_int(char *value, int def);
+
+/**
+ * Convert a string value returned by a key/value enumerator to a double.
+ *
+ * @see settings_t.create_key_value_enumerator()
+ * @see settings_t.get_double()
+ * @param value the string value
+ * @param def the default value, if value is NULL or invalid
+ */
+double settings_value_as_double(char *value, double def);
+
+/**
+ * Convert a string value returned by a key/value enumerator to a time value.
+ *
+ * @see settings_t.create_key_value_enumerator()
+ * @see settings_t.get_time()
+ * @param value the string value
+ * @param def the default value, if value is NULL or invalid
+ */
+u_int32_t settings_value_as_time(char *value, u_int32_t def);
+
+/**
+ * Generic configuration options read from a config file.
+ *
+ * The syntax is quite simple:
+ * @code
+ * settings := (section|keyvalue)*
+ * section := name { settings }
+ * keyvalue := key = value\n
+ * @endcode
+ * E.g.:
+ * @code
+ a = b
+ section-one {
+ somevalue = asdf
+ subsection {
+ othervalue = xxx
+ }
+ yetanother = zz
+ }
+ section-two {
+ }
+ @endcode
+ *
+ * The values are accessed using the get() functions using dotted keys, e.g.
+ * section-one.subsection.othervalue
+ *
+ * Currently only a limited set of printf format specifiers are supported
+ * (namely %s, %d and %N, see implementation for details).
+ *
+ * \section includes Including other files
+ * Other files can be included, using the include statement e.g.
+ * @code
+ * include /somepath/subconfig.conf
+ * @endcode
+ * Shell patterns like *.conf are possible.
+ *
+ * If the path is relative, the directory of the file containing the include
+ * statement is used as base.
+ *
+ * Sections loaded from included files extend previously loaded sections,
+ * already existing values are replaced.
+ *
+ * All settings included from files are added relative to the section the
+ * include statement is in.
+ *
+ * The following files result in the same final config as above:
+ *
+ * @code
+ a = b
+ section-one {
+ somevalue = before include
+ include include.conf
+ }
+ include two.conf
+ @endcode
+ * include.conf
+ * @code
+ somevalue = asdf
+ subsection {
+ othervalue = yyy
+ }
+ yetanother = zz
+ @endcode
+ * two.conf
+ * @code
+ section-one {
+ subsection {
+ othervalue = xxx
+ }
+ }
+ section-two {
+ }
+ @endcode
+ */
+struct settings_t {
+
+ /**
+ * Get a settings value as a string.
+ *
+ * @param key key including sections, printf style format
+ * @param def value returned if key not found
+ * @param ... argument list for key
+ * @return value pointing to internal string
+ */
+ char* (*get_str)(settings_t *this, char *key, char *def, ...);
+
+ /**
+ * Get a boolean yes|no, true|false value.
+ *
+ * @param key key including sections, printf style format
+ * @param def value returned if key not found
+ * @param ... argument list for key
+ * @return value of the key
+ */
+ bool (*get_bool)(settings_t *this, char *key, bool def, ...);
+
+ /**
+ * Get an integer value.
+ *
+ * @param key key including sections, printf style format
+ * @param def value returned if key not found
+ * @param ... argument list for key
+ * @return value of the key
+ */
+ int (*get_int)(settings_t *this, char *key, int def, ...);
+
+ /**
+ * Get an double value.
+ *
+ * @param key key including sections, printf style format
+ * @param def value returned if key not found
+ * @param ... argument list for key
+ * @return value of the key
+ */
+ double (*get_double)(settings_t *this, char *key, double def, ...);
+
+ /**
+ * Get a time value.
+ *
+ * @param key key including sections, printf style format
+ * @param def value returned if key not found
+ * @param ... argument list for key
+ * @return value of the key (in seconds)
+ */
+ u_int32_t (*get_time)(settings_t *this, char *key, u_int32_t def, ...);
+
+ /**
+ * Set a string value.
+ *
+ * @param key key including sections, printf style format
+ * @param value value to set (gets cloned)
+ * @param ... argument list for key
+ */
+ void (*set_str)(settings_t *this, char *key, char *value, ...);
+
+ /**
+ * Set a boolean value.
+ *
+ * @param key key including sections, printf style format
+ * @param value value to set
+ * @param ... argument list for key
+ */
+ void (*set_bool)(settings_t *this, char *key, bool value, ...);
+
+ /**
+ * Set an integer value.
+ *
+ * @param key key including sections, printf style format
+ * @param value value to set
+ * @param ... argument list for key
+ */
+ void (*set_int)(settings_t *this, char *key, int value, ...);
+
+ /**
+ * Set an double value.
+ *
+ * @param key key including sections, printf style format
+ * @param value value to set
+ * @param ... argument list for key
+ */
+ void (*set_double)(settings_t *this, char *key, double value, ...);
+
+ /**
+ * Set a time value.
+ *
+ * @param key key including sections, printf style format
+ * @param def value to set
+ * @param ... argument list for key
+ */
+ void (*set_time)(settings_t *this, char *key, u_int32_t value, ...);
+
+ /**
+ * Create an enumerator over subsection names of a section.
+ *
+ * @param section section including parents, printf style format
+ * @param ... argument list for key
+ * @return enumerator over subsection names
+ */
+ enumerator_t* (*create_section_enumerator)(settings_t *this,
+ char *section, ...);
+
+ /**
+ * Create an enumerator over key/value pairs in a section.
+ *
+ * @param section section name to list key/value pairs of, printf style
+ * @param ... argument list for section
+ * @return enumerator over (char *key, char *value)
+ */
+ enumerator_t* (*create_key_value_enumerator)(settings_t *this,
+ char *section, ...);
+
+ /**
+ * Load settings from the files matching the given pattern.
+ *
+ * If merge is TRUE, existing sections are extended, existing values
+ * replaced, by those found in the loaded files. If it is FALSE, existing
+ * sections are purged before reading the new config.
+ *
+ * @note If any of the files matching the pattern fails to load, no settings
+ * are added at all. So, it's all or nothing.
+ *
+ * @param pattern file pattern
+ * @param merge TRUE to merge config with existing values
+ * @return TRUE, if settings were loaded successfully
+ */
+ bool (*load_files)(settings_t *this, char *pattern, bool merge);
+
+ /**
+ * Load settings from the files matching the given pattern.
+ *
+ * If merge is TRUE, existing sections are extended, existing values
+ * replaced, by those found in the loaded files. If it is FALSE, existing
+ * sections are purged before reading the new config.
+ *
+ * All settings are loaded relative to the given section. The section is
+ * created, if it does not yet exist.
+ *
+ * @note If any of the files matching the pattern fails to load, no settings
+ * are added at all. So, it's all or nothing.
+ *
+ * @param pattern file pattern
+ * @param merge TRUE to merge config with existing values
+ * @param section section name of parent section, printf style
+ * @param ... argument list for section
+ * @return TRUE, if settings were loaded successfully
+ */
+ bool (*load_files_section)(settings_t *this, char *pattern, bool merge,
+ char *section, ...);
+
+ /**
+ * Destroy a settings instance.
+ */
+ void (*destroy)(settings_t *this);
+};
+
+/**
+ * Load settings from a file.
+ *
+ * @param file file to read settings from, NULL for default
+ * @return settings object
+ */
+settings_t *settings_create(char *file);
+
+#endif /** SETTINGS_H_ @}*/
projects / strongswan.git / commitdiff