summaryrefslogtreecommitdiff
path: root/src/confdb/confdb.h
blob: be4dfb6f75ed8308402b42bf8bd1da863ed788c4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
/*
   SSSD

   NSS Configuratoin DB

   Copyright (C) Simo Sorce <ssorce@redhat.com>	2008

   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 3 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, see <http://www.gnu.org/licenses/>.
*/

#ifndef _CONF_DB_H
#define _CONF_DB_H

#include <stdbool.h>
#include "talloc.h"
#include "tevent.h"
#include "ldb.h"
#include "ldb_errors.h"
#include "config.h"

/**
 * @defgroup sss_confdb The ConfDB API
 * The ConfDB is an interface for data providers to
 * access the configuration information provided in
 * the sssd.conf
 * @{
 */

#define CONFDB_FILE "config.ldb"
#define CONFDB_DEFAULT_CONFIG_FILE SSSD_CONF_DIR"/sssd.conf"
#define SSSD_MIN_ID 1000


/* Configuration options */

/* Services */
#define CONFDB_SERVICE_PATH_TMPL "config/%s"
#define CONFDB_SERVICE_COMMAND "command"
#define CONFDB_SERVICE_DEBUG_LEVEL "debug_level"
#define CONFDB_SERVICE_DEBUG_TIMESTAMPS "debug_timestamps"
#define CONFDB_SERVICE_DEBUG_TO_FILES "debug_to_files"
#define CONFDB_SERVICE_TIMEOUT "timeout"
#define CONFDB_SERVICE_RECON_RETRIES "reconnection_retries"

/* Monitor */
#define CONFDB_MONITOR_CONF_ENTRY "config/sssd"
#define CONFDB_MONITOR_SBUS_TIMEOUT "sbus_timeout"
#define CONFDB_MONITOR_ACTIVE_SERVICES "services"
#define CONFDB_MONITOR_ACTIVE_DOMAINS "domains"
#define CONFDB_MONITOR_NAME_REGEX   "re_expression"
#define CONFDB_MONITOR_FULL_NAME_FORMAT "full_name_format"

/* NSS */
#define CONFDB_NSS_CONF_ENTRY "config/nss"
#define CONFDB_NSS_ENUM_CACHE_TIMEOUT "enum_cache_timeout"
#define CONFDB_NSS_ENTRY_CACHE_NOWAIT_PERCENTAGE "entry_cache_nowait_percentage"
#define CONFDB_NSS_ENTRY_NEG_TIMEOUT "entry_negative_timeout"
#define CONFDB_NSS_FILTER_USERS_IN_GROUPS "filter_users_in_groups"
#define CONFDB_NSS_FILTER_USERS "filter_users"
#define CONFDB_NSS_FILTER_GROUPS "filter_groups"
#define CONFDB_NSS_PWFIELD  "pwfield"

/* PAM */
#define CONFDB_PAM_CONF_ENTRY "config/pam"
#define CONFDB_PAM_CRED_TIMEOUT "offline_credentials_expiration"
#define CONFDB_PAM_FAILED_LOGIN_ATTEMPTS "offline_failed_login_attempts"
#define CONFDB_DEFAULT_PAM_FAILED_LOGIN_ATTEMPTS 0
#define CONFDB_PAM_FAILED_LOGIN_DELAY "offline_failed_login_delay"
#define CONFDB_DEFAULT_PAM_FAILED_LOGIN_DELAY 5

/* Data Provider */
#define CONFDB_DP_CONF_ENTRY "config/dp"

/* Domains */
#define CONFDB_DOMAIN_PATH_TMPL "config/domain/%s"
#define CONFDB_DOMAIN_BASEDN "cn=domain,cn=config"
#define CONFDB_DOMAIN_ID_PROVIDER "id_provider"
#define CONFDB_DOMAIN_AUTH_PROVIDER "auth_provider"
#define CONFDB_DOMAIN_ACCESS_PROVIDER "access_provider"
#define CONFDB_DOMAIN_CHPASS_PROVIDER "chpass_provider"
#define CONFDB_DOMAIN_COMMAND "command"
#define CONFDB_DOMAIN_TIMEOUT "timeout"
#define CONFDB_DOMAIN_ATTR "cn"
#define CONFDB_DOMAIN_ENUMERATE "enumerate"
#define CONFDB_DOMAIN_MINID "min_id"
#define CONFDB_DOMAIN_MAXID "max_id"
#define CONFDB_DOMAIN_CACHE_CREDS "cache_credentials"
#define CONFDB_DOMAIN_LEGACY_PASS "store_legacy_passwords"
#define CONFDB_DOMAIN_MPG "magic_private_groups"
#define CONFDB_DOMAIN_FQ "use_fully_qualified_names"
#define CONFDB_DOMAIN_ENTRY_CACHE_TIMEOUT "entry_cache_timeout"
#define CONFDB_DOMAIN_RESOLV_TIMEOUT "dns_resolver_timeout"
#define CONFDB_DOMAIN_FAMILY_ORDER "lookup_family_order"
#define CONFDB_DOMAIN_ACCOUNT_CACHE_EXPIRATION "account_cache_expiration"

/* Local Provider */
#define CONFDB_LOCAL_DEFAULT_SHELL   "default_shell"
#define CONFDB_LOCAL_DEFAULT_BASEDIR "base_directory"
#define CONFDB_LOCAL_CREATE_HOMEDIR  "create_homedir"
#define CONFDB_LOCAL_REMOVE_HOMEDIR  "remove_homedir"
#define CONFDB_LOCAL_UMASK           "homedir_umask"
#define CONFDB_LOCAL_SKEL_DIR        "skel_dir"
#define CONFDB_LOCAL_MAIL_DIR        "mail_dir"
#define CONFDB_LOCAL_USERDEL_CMD     "userdel_cmd"

/* Proxy Provider */
#define CONFDB_PROXY_LIBNAME "proxy_lib_name"
#define CONFDB_PROXY_PAM_TARGET "proxy_pam_target"

struct confdb_ctx;
struct config_file_ctx;

/**
 * Data structure storing all of the basic features
 * of a domain.
 */
struct sss_domain_info {
    char *name;
    char *provider;
    int timeout;
    bool enumerate;
    bool fqnames;
    uint32_t id_min;
    uint32_t id_max;

    bool cache_credentials;
    bool legacy_passwords;

    struct sss_domain_info *next;
};

/**
 * Initialize the connection to the ConfDB
 *
 * @param[in]  mem_ctx The parent memory context for the confdb_ctx
 * @param[out] cdb_ctx The newly-created connection object
 * @param[in]  confdb_location The absolute path to the ConfDB file on the
 *             filesystem
 *
 * @return 0 - Connection succeeded and cdb_ctx was populated
 * @return ENOMEM - There was not enough memory to create the cdb_ctx
 * @return EIO - There was an I/O error communicating with the ConfDB file
 */
int confdb_init(TALLOC_CTX *mem_ctx,
                struct confdb_ctx **cdb_ctx,
                const char *confdb_location);

/**
 * Get a domain object for the named domain
 *
 * @param[in] cdb The connection object to the confdb
 * @param[in] name The name of the domain to retrieve
 * @param[out] domain A pointer to a domain object for the domain given by
 *                    name
 *
 * @return 0 - Lookup succeeded and domain was populated
 * @return ENOMEM - There was insufficient memory to complete the operation
 * @return ENOENT - The named domain does not exist or is not set active
 */
int confdb_get_domain(struct confdb_ctx *cdb,
                      const char *name,
                      struct sss_domain_info **domain);

/**
 * Get a null-terminated linked-list of active domain objects
 * @param[in] cdb The connection object to the confdb
 * @param[out] domains A pointer to the first entry of a linked-list of domain
 *                     objects
 *
 * @return 0 - Lookup succeeded and all active domains are in the list
 * @return ENOMEM - There was insufficient memory to complete the operation
 * @return ENOENT - No active domains are configured
 */
int confdb_get_domains(struct confdb_ctx *cdb,
                       struct sss_domain_info **domains);


/**
 * @brief Add an arbitrary parameter to the confdb.
 *
 * This is mostly useful
 * for testing, as they will not persist between SSSD restarts. For
 * persistence, make changes to the sssd.conf file.
 *
 * @param[in] cdb The connection object to the confdb
 * @param[in] replace If replace is set to true, pre-existing values will be
 *                    overwritten.
 *                    If it is false, the provided values will be added to the
 *                    attribute.
 * @param[in] section The ConfDB section to update. This is constructed from
 *                    the format of the sssd.conf file. All sections start
 *                    with 'config/'. Subsections are separated by slashes.
 *                    e.g. [domain/LDAP] in sssd.conf would translate to
 *                    config/domain/LDAP
 * @param[in] attribute The name of the attribute to update
 * @param[in] values A null-terminated array of values to add to the attribute
 *
 * @return 0 - Successfully added the provided value(s)
 * @return ENOMEM - There was insufficient memory to complete the operation
 * @return EINVAL - The section could not be parsed
 * @return EIO - An I/O error occurred communicating with the ConfDB
 */
int confdb_add_param(struct confdb_ctx *cdb,
                     bool replace,
                     const char *section,
                     const char *attribute,
                     const char **values);

/**
 * @brief Retrieve all values for an attribute
 *
 * @param[in] cdb The connection object to the confdb
 * @param[in] mem_ctx The parent memory context for the value list
 * @param[in] section The ConfDB section to update. This is constructed from
 *                    the format of the sssd.conf file. All sections start
 *                    with 'config/'. Subsections are separated by slashes.
 *                    e.g. [domain/LDAP] in sssd.conf would translate to
 *                    config/domain/LDAP
 * @param[in] attribute The name of the attribute to update
 * @param[out] values A null-terminated array of cstrings containing all
 *                    values for this attribute
 *
 * @return 0 - Successfully retrieved the value(s)
 * @return ENOMEM - There was insufficient memory to complete the operation
 * @return EINVAL - The section could not be parsed
 * @return EIO - An I/O error occurred while communicating with the ConfDB
 */
int confdb_get_param(struct confdb_ctx *cdb,
                     TALLOC_CTX *mem_ctx,
                     const char *section,
                     const char *attribute,
                     char ***values);

/**
 * @brief Convenience function to retrieve a single-valued attribute as a
 * string
 *
 * @param[in] cdb The connection object to the confdb
 * @param[in] ctx The parent memory context for the returned string
 * @param[in] section The ConfDB section to update. This is constructed from
 *                    the format of the sssd.conf file. All sections start
 *                    with 'config/'. Subsections are separated by slashes.
 *                    e.g. [domain/LDAP] in sssd.conf would translate to
 *                    config/domain/LDAP
 * @param[in] attribute The name of the attribute to update
 * @param[in] defstr If not NULL, the string to use if the attribute does not
 *                   exist in the ConfDB
 * @param[out] result A pointer to the retrieved (or default) string
 *
 * @return 0 - Successfully retrieved the entry (or used the default)
 * @return ENOMEM - There was insufficient memory to complete the operation
 * @return EINVAL - The section could not be parsed, or the attribute was not
 *                  single-valued.
 * @return EIO - An I/O error occurred while communicating with the ConfDB
 */
int confdb_get_string(struct confdb_ctx *cdb, TALLOC_CTX *ctx,
                      const char *section, const char *attribute,
                      const char *defstr, char **result);

/**
 * @brief Convenience function to retrieve a single-valued attribute as an
 * integer
 *
 * @param[in] cdb The connection object to the confdb
 * @param[in] ctx The parent memory context for the returned string
 * @param[in] section The ConfDB section to update. This is constructed from
 *                    the format of the sssd.conf file. All sections start
 *                    with 'config/'. Subsections are separated by slashes.
 *                    e.g. [domain/LDAP] in sssd.conf would translate to
 *                    config/domain/LDAP
 * @param[in] attribute The name of the attribute to update
 * @param[in] defval If not NULL, the integer to use if the attribute does not
 *                   exist in the ConfDB
 * @param[out] result A pointer to the retrieved (or default) integer
 *
 * @return 0 - Successfully retrieved the entry (or used the default)
 * @return ENOMEM - There was insufficient memory to complete the operation
 * @return EINVAL - The section could not be parsed, or the attribute was not
 *                  single-valued.
 * @return EIO - An I/O error occurred while communicating with the ConfDB
 * @return ERANGE - The value stored in the ConfDB was outside the range
 *                  [INT_MIN..INT_MAX]
 */
int confdb_get_int(struct confdb_ctx *cdb, TALLOC_CTX *ctx,
                   const char *section, const char *attribute,
                   int defval, int *result);

/**
 * @brief Convenience function to retrieve a single-valued attribute as a
 * boolean
 *
 * This function will read (in a case-insensitive manner) a "true" or "false"
 * value from the ConfDB and convert it to an integral bool value.
 *
 * @param[in] cdb The connection object to the confdb
 * @param[in] ctx The parent memory context for the returned string
 * @param[in] section The ConfDB section to update. This is constructed from
 *                    the format of the sssd.conf file. All sections start
 *                    with 'config/'. Subsections are separated by slashes.
 *                    e.g. [domain/LDAP] in sssd.conf would translate to
 *                    config/domain/LDAP
 * @param[in] attribute The name of the attribute to update
 * @param[in] defval If not NULL, the boolean state to use if the attribute
 *                   does not exist in the ConfDB
 * @param[out] result A pointer to the retrieved (or default) bool
 *
 * @return 0 - Successfully retrieved the entry (or used the default)
 * @return ENOMEM - There was insufficient memory to complete the operation
 * @return EINVAL - The section could not be parsed, the attribute was not
 *                  single-valued, or the value was not a boolean.
 * @return EIO - An I/O error occurred while communicating with the ConfDB
 */
int confdb_get_bool(struct confdb_ctx *cdb, TALLOC_CTX *ctx,
                    const char *section, const char *attribute,
                    bool defval, bool *result);

/**
 * @brief Convenience function to retrieve a single-valued attribute as a
 * null-terminated array of strings
 *
 * This function will automatically split a comma-separated string in an
 * attribute into a null-terminated array of strings. This is useful for
 * storing and retrieving ordered lists, as ConfDB multivalued attributes do
 * not guarantee retrieval order.
 *
 * @param[in] cdb The connection object to the confdb
 * @param[in] ctx The parent memory context for the returned string
 * @param[in] section The ConfDB section to update. This is constructed from
 *                    the format of the sssd.conf file. All sections start
 *                    with 'config/'. Subsections are separated by slashes.
 *                    e.g. [domain/LDAP] in sssd.conf would translate to
 *                    config/domain/LDAP
 * @param[in] attribute The name of the attribute to update
 * @param[out] result A pointer to the retrieved array of strings
 *
 * @return 0 - Successfully retrieved the entry (or used the default)
 * @return ENOMEM - There was insufficient memory to complete the operation
 * @return EINVAL - The section could not be parsed, or the attribute was not
 *                  single-valued.
 * @return ENOENT - The attribute was not found.
 * @return EIO - An I/O error occurred while communicating with the ConfDB
 */
int confdb_get_string_as_list(struct confdb_ctx *cdb, TALLOC_CTX *ctx,
                              const char *section, const char *attribute,
                              char ***result);
/**
 * @}
 */
#endif