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