1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _IDMAPD_H 27 #define _IDMAPD_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <stdarg.h> 34 #include <rpc/rpc.h> 35 #include <synch.h> 36 #include <thread.h> 37 #include <libintl.h> 38 #include <strings.h> 39 #include <sqlite/sqlite.h> 40 #include <inttypes.h> 41 #include "idmap_prot.h" 42 #include "adutils.h" 43 #include "idmap_config.h" 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 /* States a server can be in wrt request */ 50 #define _IDLE 0 51 #define _SERVED 1 52 53 #define SENTINEL_PID UINT32_MAX 54 #define CHECK_NULL(s) (s != NULL ? s : "null") 55 56 extern int _rpcsvcstate; /* set when a request is serviced */ 57 extern int _rpcsvccount; /* number of requests being serviced */ 58 extern mutex_t _svcstate_lock; /* lock for _rpcsvcstate, _rpcsvccount */ 59 60 typedef enum idmap_namemap_mode { 61 IDMAP_NM_NONE = 0, 62 IDMAP_NM_AD, 63 IDMAP_NM_NLDAP, 64 IDMAP_NM_MIXED 65 } idmap_namemap_mode_t; 66 67 /* 68 * Global state of idmapd daemon. 69 */ 70 #define IDMAP_MAX_NAME_LEN 512 71 typedef struct idmapd_state { 72 rwlock_t rwlk_cfg; /* config lock */ 73 idmap_cfg_t *cfg; /* config */ 74 bool_t daemon_mode; 75 bool_t debug_mode; 76 char hostname[MAX_NAME_LEN]; /* my hostname */ 77 uid_t next_uid; 78 gid_t next_gid; 79 uid_t limit_uid; 80 gid_t limit_gid; 81 int new_eph_db; /* was the ephem ID db [re-]created? */ 82 bool_t eph_map_unres_sids; 83 ad_t *ad; 84 } idmapd_state_t; 85 extern idmapd_state_t _idmapdstate; 86 87 #define RDLOCK_CONFIG() \ 88 (void) rw_rdlock(&_idmapdstate.rwlk_cfg); 89 #define WRLOCK_CONFIG() \ 90 (void) rw_wrlock(&_idmapdstate.rwlk_cfg); 91 #define UNLOCK_CONFIG() \ 92 (void) rw_unlock(&_idmapdstate.rwlk_cfg); 93 94 typedef struct hashentry { 95 uint_t key; 96 uint_t next; 97 } hashentry_t; 98 99 typedef struct lookup_state { 100 bool_t sid2pid_done; 101 bool_t pid2sid_done; 102 int ad_nqueries; 103 int nldap_nqueries; 104 bool_t eph_map_unres_sids; 105 uint_t curpos; 106 hashentry_t *sid_history; 107 uint_t sid_history_size; 108 idmap_mapping_batch *batch; 109 idmap_ids_res *result; 110 idmap_namemap_mode_t nm_siduid; 111 idmap_namemap_mode_t nm_sidgid; 112 char *ad_unixuser_attr; 113 char *ad_unixgroup_attr; 114 char *nldap_winname_attr; 115 char *defdom; 116 sqlite *cache; 117 sqlite *db; 118 } lookup_state_t; 119 120 #define NLDAP_OR_MIXED(nm) \ 121 (nm == IDMAP_NM_NLDAP || nm == IDMAP_NM_MIXED) 122 #define AD_OR_MIXED(nm) \ 123 (nm == IDMAP_NM_AD || nm == IDMAP_NM_MIXED) 124 125 #define NLDAP_OR_MIXED_MODE(pidtype, ls) \ 126 ((pidtype == IDMAP_UID && NLDAP_OR_MIXED(ls->nm_siduid)) || \ 127 (pidtype == IDMAP_GID && NLDAP_OR_MIXED(ls->nm_sidgid))) 128 #define AD_OR_MIXED_MODE(pidtype, ls)\ 129 ((pidtype == IDMAP_UID && AD_OR_MIXED(ls->nm_siduid)) || \ 130 (pidtype == IDMAP_GID && AD_OR_MIXED(ls->nm_sidgid))) 131 #define NLDAP_MODE(pidtype, ls) \ 132 ((pidtype == IDMAP_UID && ls->nm_siduid == IDMAP_NM_NLDAP) || \ 133 (pidtype == IDMAP_GID && ls->nm_sidgid == IDMAP_NM_NLDAP)) 134 #define AD_MODE(pidtype, ls) \ 135 ((pidtype == IDMAP_UID && ls->nm_siduid == IDMAP_NM_AD) || \ 136 (pidtype == IDMAP_GID && ls->nm_sidgid == IDMAP_NM_AD)) 137 #define MIXED_MODE(pidtype, ls) \ 138 ((pidtype == IDMAP_UID && ls->nm_siduid == IDMAP_NM_MIXED) || \ 139 (pidtype == IDMAP_GID && ls->nm_sidgid == IDMAP_NM_MIXED)) 140 141 142 typedef struct list_cb_data { 143 void *result; 144 uint64_t next; 145 uint64_t len; 146 uint64_t limit; 147 int flag; 148 } list_cb_data_t; 149 150 typedef struct msg_table { 151 idmap_retcode retcode; 152 const char *msg; 153 } msg_table_t; 154 155 #define IDMAPD_SEARCH_TIMEOUT 3 /* seconds */ 156 #define IDMAPD_LDAP_OPEN_TIMEOUT 1 /* secs; initial, w/ exp backoff */ 157 158 /* 159 * The following flags are used by idmapd while processing a 160 * given mapping request. Note that idmapd uses multiple passes to 161 * process the request and the flags are used to pass information 162 * about the state of the request between these passes. 163 */ 164 165 /* Initial state. Done. Reset all flags. Remaining passes can be skipped */ 166 #define _IDMAP_F_DONE 0x00000000 167 /* Set when subsequent passes are required */ 168 #define _IDMAP_F_NOTDONE 0x00000001 169 /* Don't update name_cache. (e.g. set when winname,SID found in name_cache) */ 170 #define _IDMAP_F_DONT_UPDATE_NAMECACHE 0x00000002 171 /* Batch this request for AD lookup */ 172 #define _IDMAP_F_LOOKUP_AD 0x00000004 173 /* Batch this request for nldap directory lookup */ 174 #define _IDMAP_F_LOOKUP_NLDAP 0x00000008 175 /* 176 * Expired ephemeral mapping found in cache when processing sid2uid request. 177 * Use it if the given SID cannot be mapped by name 178 */ 179 #define _IDMAP_F_EXP_EPH_UID 0x00000010 180 /* Same as above. Used for sid2gid request */ 181 #define _IDMAP_F_EXP_EPH_GID 0x00000020 182 183 /* 184 * Check if we are done. If so, subsequent passes can be skipped 185 * when processing a given mapping request. 186 */ 187 #define ARE_WE_DONE(f) ((f & _IDMAP_F_NOTDONE) == 0) 188 189 #define SIZE_INCR 5 190 #define MAX_TRIES 5 191 #define IDMAP_DBDIR "/var/idmap" 192 #define IDMAP_CACHEDIR "/var/run/idmap" 193 #define IDMAP_DBNAME IDMAP_DBDIR "/idmap.db" 194 #define IDMAP_CACHENAME IDMAP_CACHEDIR "/idmap.db" 195 196 #define EMPTY_STRING(str) (str == NULL || *str == 0) 197 198 #define IS_BATCH_SID(batch, i) \ 199 (batch.idmap_mapping_batch_val[i].id1.idtype == IDMAP_SID || \ 200 batch.idmap_mapping_batch_val[i].id1.idtype == IDMAP_USID || \ 201 batch.idmap_mapping_batch_val[i].id1.idtype == IDMAP_GSID) 202 203 #define IS_BATCH_UID(batch, i) \ 204 (batch.idmap_mapping_batch_val[i].id1.idtype == IDMAP_UID) 205 206 #define IS_BATCH_GID(batch, i) \ 207 (batch.idmap_mapping_batch_val[i].id1.idtype == IDMAP_GID) 208 209 #define IS_REQUEST_SID(req, n) \ 210 ((req).id##n.idtype == IDMAP_SID || \ 211 (req).id##n.idtype == IDMAP_USID || \ 212 (req).id##n.idtype == IDMAP_GSID) \ 213 214 215 #define IS_REQUEST_UID(request) \ 216 ((request).id1.idtype == IDMAP_UID) 217 218 #define IS_REQUEST_GID(request) \ 219 ((request).id1.idtype == IDMAP_GID) 220 221 typedef idmap_retcode (*update_list_res_cb)(void *, const char **, uint64_t); 222 typedef int (*list_svc_cb)(void *, int, char **, char **); 223 224 extern void idmap_prog_1(struct svc_req *, register SVCXPRT *); 225 extern void idmapdlog(int, const char *, ...); 226 extern int init_mapping_system(); 227 extern void fini_mapping_system(); 228 extern void print_idmapdstate(); 229 extern int create_directory(const char *, uid_t, gid_t); 230 extern int load_config(); 231 extern void reload_ad(); 232 extern int idmap_init_tsd_key(void); 233 extern void degrade_svc(int, const char *); 234 extern void restore_svc(void); 235 236 237 extern int init_dbs(); 238 extern void fini_dbs(); 239 extern idmap_retcode get_db_handle(sqlite **); 240 extern idmap_retcode get_cache_handle(sqlite **); 241 extern idmap_retcode sql_exec_no_cb(sqlite *, const char *, char *); 242 extern idmap_retcode add_namerule(sqlite *, idmap_namerule *); 243 extern idmap_retcode rm_namerule(sqlite *, idmap_namerule *); 244 extern idmap_retcode flush_namerules(sqlite *); 245 246 extern char *tolower_u8(const char *); 247 248 extern idmap_retcode gen_sql_expr_from_rule(idmap_namerule *, char **); 249 extern idmap_retcode validate_list_cb_data(list_cb_data_t *, int, 250 char **, int, uchar_t **, size_t); 251 extern idmap_retcode process_list_svc_sql(sqlite *, const char *, char *, 252 uint64_t, int, list_svc_cb, void *); 253 extern idmap_retcode sid2pid_first_pass(lookup_state_t *, 254 idmap_mapping *, idmap_id_res *); 255 extern idmap_retcode sid2pid_second_pass(lookup_state_t *, 256 idmap_mapping *, idmap_id_res *); 257 extern idmap_retcode pid2sid_first_pass(lookup_state_t *, 258 idmap_mapping *, idmap_id_res *, int, int); 259 extern idmap_retcode pid2sid_second_pass(lookup_state_t *, 260 idmap_mapping *, idmap_id_res *, int); 261 extern idmap_retcode update_cache_sid2pid(lookup_state_t *, 262 idmap_mapping *, idmap_id_res *); 263 extern idmap_retcode update_cache_pid2sid(lookup_state_t *, 264 idmap_mapping *, idmap_id_res *); 265 extern idmap_retcode get_u2w_mapping(sqlite *, sqlite *, idmap_mapping *, 266 idmap_mapping *, int); 267 extern idmap_retcode get_w2u_mapping(sqlite *, sqlite *, idmap_mapping *, 268 idmap_mapping *); 269 extern idmap_retcode load_cfg_in_state(lookup_state_t *); 270 extern void cleanup_lookup_state(lookup_state_t *); 271 272 extern idmap_retcode ad_lookup_batch(lookup_state_t *, 273 idmap_mapping_batch *, idmap_ids_res *); 274 extern idmap_retcode lookup_name2sid(sqlite *, const char *, const char *, 275 int *, char **, char **, idmap_rid_t *, 276 idmap_mapping *, int); 277 extern idmap_retcode lookup_wksids_name2sid(const char *, char **, char **, 278 idmap_rid_t *, int *); 279 280 #ifdef __cplusplus 281 } 282 #endif 283 284 #endif /* _IDMAPD_H */ 285