1 /* 2 * Copyright (c) 1997-2006 Erez Zadok 3 * Copyright (c) 1990 Jan-Simon Pendry 4 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Jan-Simon Pendry at Imperial College, London. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgment: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * 40 * File: am-utils/amd/amd.h 41 * 42 */ 43 44 #ifndef _AMD_H 45 #define _AMD_H 46 47 48 /* 49 * MACROS: 50 */ 51 52 /* 53 * Define a default debug mtab path for systems 54 * that support mtab on file. 55 */ 56 #ifdef MOUNT_TABLE_ON_FILE 57 # define DEBUG_MNTTAB_FILE "/tmp/mnttab" 58 #endif /* MOUNT_TABLE_ON_FILE */ 59 60 /* options for amd.conf */ 61 #define CFM_BROWSABLE_DIRS 0x00000001 62 #define CFM_MOUNT_TYPE_AUTOFS 0x00000002 /* use kernel autofs support */ 63 #define CFM_SELECTORS_IN_DEFAULTS 0x00000004 64 #define CFM_NORMALIZE_HOSTNAMES 0x00000008 65 #define CFM_PROCESS_LOCK 0x00000010 66 #define CFM_PRINT_PID 0x00000020 67 #define CFM_RESTART_EXISTING_MOUNTS 0x00000040 68 #define CFM_SHOW_STATFS_ENTRIES 0x00000080 69 #define CFM_FULLY_QUALIFIED_HOSTS 0x00000100 70 #define CFM_BROWSABLE_DIRS_FULL 0x00000200 /* allow '/' in readdir() */ 71 #define CFM_UNMOUNT_ON_EXIT 0x00000400 /* when amd finishing */ 72 #define CFM_USE_TCPWRAPPERS 0x00000800 73 #define CFM_AUTOFS_USE_LOFS 0x00001000 74 #define CFM_NFS_INSECURE_PORT 0x00002000 75 #define CFM_DOMAIN_STRIP 0x00004000 76 #define CFM_NORMALIZE_SLASHES 0x00008000 /* normalize slashes? */ 77 #define CFM_FORCED_UNMOUNTS 0x00010000 /* forced unmounts? */ 78 #define CFM_TRUNCATE_LOG 0x00020000 /* truncate log file? */ 79 #if 0 80 /* XXX: reserved to sync up with am-utils-6.2 */ 81 #define CFM_SUN_MAP_SYNTAX 0x00040000 /* Sun map syntax? */ 82 #endif 83 #define CFM_NFS_ANY_INTERFACE 0x00080000 /* all interfaces are acceptable */ 84 85 /* defaults global flags: plock, tcpwrappers, and autofs/lofs */ 86 #define CFM_DEFAULT_FLAGS (CFM_PROCESS_LOCK|CFM_USE_TCPWRAPPERS|CFM_AUTOFS_USE_LOFS|CFM_DOMAIN_STRIP|CFM_NORMALIZE_SLASHES) 87 88 /* 89 * macro definitions for automounter vfs/vnode operations. 90 */ 91 #define VLOOK_CREATE 0x1 92 #define VLOOK_DELETE 0x2 93 #define VLOOK_LOOKUP 0x3 94 95 /* 96 * macro definitions for automounter vfs capabilities 97 */ 98 #define FS_DIRECTORY 0x0001 /* This looks like a dir, not a link */ 99 #define FS_MBACKGROUND 0x0002 /* Should background this mount */ 100 #define FS_NOTIMEOUT 0x0004 /* Don't bother with timeouts */ 101 #define FS_MKMNT 0x0008 /* Need to make the mount point */ 102 #define FS_UBACKGROUND 0x0010 /* Unmount in background */ 103 #define FS_BACKGROUND (FS_MBACKGROUND|FS_UBACKGROUND) 104 #define FS_DISCARD 0x0020 /* Discard immediately on last reference */ 105 #define FS_AMQINFO 0x0040 /* Amq is interested in this fs type */ 106 #define FS_AUTOFS 0x0080 /* This filesystem can be an autofs f/s */ 107 #define FS_DIRECT 0x0100 /* Direct mount */ 108 #define FS_ON_AUTOFS 0x0200 /* This filesystem can be mounted directly 109 onto an autofs mountpoint */ 110 111 /* 112 * macros for struct am_node (map of auto-mount points). 113 */ 114 #define AMF_NOTIMEOUT 0x0001 /* This node never times out */ 115 #define AMF_ROOT 0x0002 /* This is a root node */ 116 #define AMF_AUTOFS 0x0004 /* This node is part of an autofs filesystem */ 117 #define AMF_REMOUNT 0x0008 /* This node needs to be remounted */ 118 #define AMF_SOFTLOOKUP 0x0010 /* This node returns EIO if server is down */ 119 120 /* 121 * macros for struct mntfs (list of mounted filesystems) 122 */ 123 #define MFF_MOUNTED 0x0001 /* Node is mounted */ 124 #define MFF_MOUNTING 0x0002 /* Mount is in progress */ 125 #define MFF_UNMOUNTING 0x0004 /* Unmount is in progress */ 126 #define MFF_RESTART 0x0008 /* Restarted node */ 127 #define MFF_MKMNT 0x0010 /* Delete this node's am_mount */ 128 #define MFF_ERROR 0x0020 /* This node failed to mount */ 129 #define MFF_LOGDOWN 0x0040 /* Logged that this mount is down */ 130 #define MFF_RSTKEEP 0x0080 /* Don't timeout this filesystem - restarted */ 131 #define MFF_WANTTIMO 0x0100 /* Need a timeout call when not busy */ 132 #define MFF_NFSLINK 0x0200 /* nfsl type, and deemed a link */ 133 #define MFF_IS_AUTOFS 0x0400 /* this filesystem is of type autofs */ 134 #define MFF_NFS_SCALEDOWN 0x0800 /* the mount failed, retry with v2/UDP */ 135 #define MFF_ON_AUTOFS 0x1000 /* autofs has a lofs/link to this f/s */ 136 #define MFF_WEBNFS 0x2000 /* use public filehandle */ 137 138 /* 139 * macros for struct fserver. 140 */ 141 #define FSF_VALID 0x0001 /* Valid information available */ 142 #define FSF_DOWN 0x0002 /* This fileserver is thought to be down */ 143 #define FSF_ERROR 0x0004 /* Permanent error has occurred */ 144 #define FSF_WANT 0x0008 /* Want a wakeup call */ 145 #define FSF_PINGING 0x0010 /* Already doing pings */ 146 #define FSF_WEBNFS 0x0020 /* Don't try to contact portmapper */ 147 #define FSF_PING_UNINIT 0x0040 /* ping values have not been initilized */ 148 #define FSF_FORCE_UNMOUNT 0x0080 /* force umount of this fserver */ 149 #define FSRV_ERROR(fs) ((fs) && (((fs)->fs_flags & FSF_ERROR) == FSF_ERROR)) 150 #define FSRV_ISDOWN(fs) ((fs) && (((fs)->fs_flags & (FSF_DOWN|FSF_VALID)) == (FSF_DOWN|FSF_VALID))) 151 #define FSRV_ISUP(fs) (!(fs) || (((fs)->fs_flags & (FSF_DOWN|FSF_VALID)) == (FSF_VALID))) 152 153 /* some systems (SunOS 4.x) neglect to define the mount null message */ 154 #ifndef MOUNTPROC_NULL 155 # define MOUNTPROC_NULL ((u_long)(0)) 156 #endif /* not MOUNTPROC_NULL */ 157 158 /* 159 * Error to return if remote host is not available. 160 * Try, in order, "host down", "host unreachable", "invalid argument". 161 */ 162 #ifdef EHOSTDOWN 163 # define AM_ERRNO_HOST_DOWN EHOSTDOWN 164 #else /* not EHOSTDOWN */ 165 # ifdef EHOSTUNREACH 166 # define AM_ERRNO_HOST_DOWN EHOSTUNREACH 167 # else /* not EHOSTUNREACH */ 168 # define AM_ERRNO_HOST_DOWN EINVAL 169 # endif /* not EHOSTUNREACH */ 170 #endif /* not EHOSTDOWN */ 171 172 /* Hash table size */ 173 #define NKVHASH (1 << 2) /* Power of two */ 174 175 /* Max entries to return in one call */ 176 #define MAX_READDIR_ENTRIES 16 177 178 /* 179 * default amfs_auto retrans - 1/10th seconds 180 */ 181 #define AMFS_AUTO_RETRANS(x) ((ALLOWED_MOUNT_TIME*10+5*gopt.amfs_auto_timeo[(x)])/gopt.amfs_auto_timeo[(x)] * 2) 182 183 /* 184 * The following values can be tuned... 185 */ 186 #define AM_TTL (300) /* Default cache period (5 min) */ 187 #define AM_TTL_W (120) /* Default unmount interval (2 min) */ 188 #define AM_PINGER 30 /* NFS ping interval for live systems */ 189 #define AMFS_AUTO_TIMEO 8 /* Default amfs_auto timeout - .8s */ 190 #define AMFS_EXEC_MAP_TIMEOUT 10 /* default 10sec exec map timeout */ 191 192 /* interval between forced retries of a mount */ 193 #define RETRY_INTERVAL 2 194 195 #ifndef ROOT_MAP 196 # define ROOT_MAP "\"root\"" 197 #endif /* not ROOT_MAP */ 198 199 #define ereturn(x) do { *error_return = x; return 0; } while (0) 200 201 #define NEVER (time_t) 0 202 203 #if defined(HAVE_TCPD_H) && defined(HAVE_LIBWRAP) 204 # define AMD_SERVICE_NAME "amd" /* for tcpwrappers */ 205 #endif /* defined(HAVE_TCPD_H) && defined(HAVE_LIBWRAP) */ 206 207 /* 208 * TYPEDEFS: 209 */ 210 211 typedef struct cf_map cf_map_t; 212 typedef struct kv kv; 213 typedef struct am_node am_node; 214 typedef struct mntfs mntfs; 215 typedef struct am_opts am_opts; 216 typedef struct am_ops am_ops; 217 typedef struct am_stats am_stats; 218 typedef struct fserver fserver; 219 220 typedef voidp wchan_t; 221 typedef voidp opaque_t; 222 223 /* 224 * Cache map operations 225 */ 226 typedef void add_fn(mnt_map *, char *, char *); 227 typedef int init_fn(mnt_map *, char *, time_t *); 228 typedef int mtime_fn(mnt_map *, char *, time_t *); 229 typedef int isup_fn(mnt_map *, char *); 230 typedef int reload_fn(mnt_map *, char *, add_fn *); 231 typedef int search_fn(mnt_map *, char *, char *, char **, time_t *); 232 typedef int task_fun(opaque_t); 233 typedef void cb_fun(int, int, opaque_t); 234 typedef void fwd_fun(voidp, int, struct sockaddr_in *, 235 struct sockaddr_in *, opaque_t, int); 236 typedef int key_fun(char *, opaque_t); 237 typedef void callout_fun(opaque_t); 238 239 /* 240 * automounter vfs/vnode operations. 241 */ 242 typedef char *(*vfs_match) (am_opts *); 243 typedef int (*vfs_init) (mntfs *); 244 typedef int (*vmount_fs) (am_node *, mntfs *); 245 typedef int (*vumount_fs) (am_node *, mntfs *); 246 typedef am_node *(*vlookup_child) (am_node *, char *, int *, int); 247 typedef am_node *(*vmount_child) (am_node *, int *); 248 typedef int (*vreaddir) (am_node *, nfscookie, nfsdirlist *, nfsentry *, u_int); 249 typedef am_node *(*vreadlink) (am_node *, int *); 250 typedef void (*vmounted) (mntfs *); 251 typedef void (*vumounted) (mntfs *); 252 typedef fserver *(*vffserver) (mntfs *); 253 typedef wchan_t (*vget_wchan) (mntfs *); 254 255 256 257 /* 258 * STRUCTURES: 259 */ 260 261 /* global amd options that are manipulated by conf.c */ 262 struct amu_global_options { 263 char *arch; /* name of current architecture */ 264 char *auto_dir; /* automounter temp dir */ 265 int auto_attrcache; /* attribute cache timeout for auto dirs */ 266 char *cluster; /* cluster name */ 267 char *karch; /* kernel architecture */ 268 char *logfile; /* amd log file */ 269 char *op_sys; /* operating system name ${os} */ 270 char *op_sys_ver; /* OS version ${osver} */ 271 char *op_sys_full; /* full OS name ${full_os} */ 272 char *op_sys_vendor; /* name of OS vendor ${vendor} */ 273 char *pid_file; /* PID file */ 274 char *sub_domain; /* local domain */ 275 char *localhost_address; /* localhost address (NULL means use 127.0.0.1) */ 276 char *map_defaults; /* global map /default options */ 277 char *map_options; /* global map options */ 278 int map_reload_interval; /* map reload interval */ 279 char *map_type; /* global map type */ 280 char *search_path; /* search path for maps */ 281 char *mount_type; /* mount type for map */ 282 char *debug_mtab_file; /* path for the mtab file during debug mode */ 283 u_int flags; /* various CFM_* flags */ 284 285 #define AMU_TYPE_NONE -1 /* for amfs_auto_{timeo,retrans,toplvl} */ 286 #define AMU_TYPE_UDP 0 /* for amfs_auto_{timeo,retrans,toplvl} */ 287 #define AMU_TYPE_TCP 1 /* for amfs_auto_{timeo,retrans,toplvl} */ 288 /* 289 * Note: toplvl is only UDP, but we want to separate it from regular 290 * NFS mounts which Amd makes, because the toplvl mount is a localhost 291 * mount for which different timeo/retrans parameters may be desired. 292 */ 293 #define AMU_TYPE_TOPLVL 2 /* for amfs_auto_{timeo,retrans,toplvl} */ 294 #define AMU_TYPE_MAX 3 /* for amfs_auto_{timeo,retrans,toplvl} */ 295 int amfs_auto_retrans[AMU_TYPE_MAX]; /* NFS retransmit counter */ 296 int amfs_auto_timeo[AMU_TYPE_MAX]; /* NFS retry interval */ 297 298 int am_timeo; /* cache duration */ 299 int am_timeo_w; /* dismount interval */ 300 u_long portmap_program; /* amd RPC program number */ 301 u_short preferred_amq_port; /* preferred amq service RPC port number (0 means "any") */ 302 #ifdef HAVE_MAP_HESIOD 303 char *hesiod_base; /* Hesiod rhs */ 304 #endif /* HAVE_MAP_HESIOD */ 305 #ifdef HAVE_MAP_LDAP 306 char *ldap_base; /* LDAP base */ 307 char *ldap_hostports; /* LDAP host ports */ 308 long ldap_cache_seconds; /* LDAP internal cache - keep seconds */ 309 long ldap_cache_maxmem; /* LDAP internal cache - max memory (bytes) */ 310 long ldap_proto_version; /* LDAP protocol version */ 311 #endif /* HAVE_MAP_LDAP */ 312 #ifdef HAVE_MAP_NIS 313 char *nis_domain; /* YP domain name */ 314 #endif /* HAVE_MAP_NIS */ 315 char *nfs_proto; /* NFS protocol (NULL, udp, tcp) */ 316 int nfs_vers; /* NFS version (0, 2, 3, 4) */ 317 u_int exec_map_timeout; /* timeout (seconds) for executable maps */ 318 }; 319 320 /* if you add anything here, update conf.c:reset_cf_map() */ 321 struct cf_map { 322 char *cfm_dir; /* /home, /u, /src */ 323 char *cfm_name; /* amd.home, /etc/amd.home ... */ 324 char *cfm_type; /* file, hesiod, ndbm, nis ... */ 325 char *cfm_defaults; /* map /defaults options in amd.conf */ 326 char *cfm_opts; /* -cache:=all, etc. */ 327 char *cfm_search_path; /* /etc/local:/etc/amdmaps:/misc/yp */ 328 char *cfm_tag; /* optional map tag for amd -T */ 329 u_int cfm_flags; /* browsable_dirs? mount_type? */ 330 struct cf_map *cfm_next; /* pointer to next in list (if any) */ 331 }; 332 333 /* 334 * Key-value pair 335 */ 336 struct kv { 337 kv *next; 338 char *key; 339 #ifdef HAVE_REGEXEC 340 regex_t re; /* store the regexp from regcomp() */ 341 #endif /* HAVE_REGEXEC */ 342 char *val; 343 }; 344 345 struct mnt_map { 346 qelem hdr; 347 int refc; /* Reference count */ 348 short flags; /* Allocation flags */ 349 short alloc; /* Allocation mode */ 350 time_t modify; /* Modify time of map */ 351 u_int reloads; /* Number of times map was reloaded */ 352 char *map_name; /* Name of this map */ 353 char *wildcard; /* Wildcard value */ 354 reload_fn *reload; /* Function to be used for reloads */ 355 isup_fn *isup; /* Is service up or not? (1=up, 0=down) */ 356 search_fn *search; /* Function to be used for searching */ 357 mtime_fn *mtime; /* Modify time function */ 358 kv *kvhash[NKVHASH]; /* Cached data */ 359 cf_map_t *cfm; /* pointer to per-map amd.conf opts, if any */ 360 void *map_data; /* Map data black box */ 361 }; 362 363 /* 364 * Options 365 */ 366 struct am_opts { 367 char *fs_glob; /* Smashed copy of global options */ 368 char *fs_local; /* Expanded copy of local options */ 369 char *fs_mtab; /* Mount table entry */ 370 /* Other options ... */ 371 char *opt_dev; 372 char *opt_delay; 373 char *opt_dir; 374 char *opt_fs; 375 char *opt_group; 376 char *opt_mount; 377 char *opt_opts; 378 char *opt_remopts; 379 char *opt_pref; 380 char *opt_cache; 381 char *opt_rfs; 382 char *opt_rhost; 383 char *opt_sublink; 384 char *opt_type; 385 char *opt_mount_type; /* "nfs" or "autofs" */ 386 char *opt_unmount; 387 char *opt_umount; /* an "alias" for opt_unmount (type:=program) */ 388 char *opt_user; 389 char *opt_maptype; /* map type: file, nis, hesiod, etc. */ 390 char *opt_cachedir; /* cache directory */ 391 char *opt_addopts; /* options to add to opt_opts */ 392 }; 393 394 struct am_ops { 395 char *fs_type; /* type of filesystems e.g. "nfsx" */ 396 vfs_match fs_match; /* fxn: match */ 397 vfs_init fs_init; /* fxn: initialization */ 398 vmount_fs mount_fs; /* fxn: mount my own vnode */ 399 vumount_fs umount_fs; /* fxn: unmount my own vnode */ 400 vlookup_child lookup_child; /* fxn: lookup path-name */ 401 vmount_child mount_child; /* fxn: mount path-name */ 402 vreaddir readdir; /* fxn: read directory */ 403 vreadlink readlink; /* fxn: read link */ 404 vmounted mounted; /* fxn: after-mount extra actions */ 405 vumounted umounted; /* fxn: after-umount extra actions */ 406 vffserver ffserver; /* fxn: find a file server */ 407 vget_wchan get_wchan; /* fxn: get the waiting channel */ 408 int nfs_fs_flags; /* filesystem flags FS_* for nfs mounts */ 409 #ifdef HAVE_FS_AUTOFS 410 int autofs_fs_flags;/* filesystem flags FS_* for autofs mounts */ 411 #endif /* HAVE_FS_AUTOFS */ 412 }; 413 414 /* 415 * List of mounted filesystems 416 */ 417 struct mntfs { 418 qelem mf_q; /* List of mounted filesystems */ 419 am_ops *mf_ops; /* Operations on this mountpoint */ 420 am_opts *mf_fo; /* File opts */ 421 char *mf_mount; /* "/a/kiska/home/kiska" */ 422 char *mf_info; /* Mount info */ 423 char *mf_auto; /* Automount opts */ 424 char *mf_mopts; /* FS mount opts */ 425 char *mf_remopts; /* Remote FS mount opts */ 426 char *mf_loopdev; /* loop device name for /dev/loop mounts */ 427 fserver *mf_server; /* File server */ 428 int mf_fsflags; /* Flags FS_* copied from mf_ops->*_fs_flags */ 429 int mf_flags; /* Flags MFF_* */ 430 int mf_error; /* Error code from background mount */ 431 int mf_refc; /* Number of references to this node */ 432 int mf_cid; /* Callout id */ 433 void (*mf_prfree) (opaque_t); /* Free private space */ 434 opaque_t mf_private; /* Private - per-fs data */ 435 }; 436 437 /* 438 * List of fileservers 439 */ 440 struct fserver { 441 qelem fs_q; /* List of fileservers */ 442 int fs_refc; /* Number of references to this server */ 443 char *fs_host; /* Normalized hostname of server */ 444 struct sockaddr_in *fs_ip; /* Network address of server */ 445 int fs_cid; /* Callout id */ 446 int fs_pinger; /* Ping (keepalive) interval */ 447 int fs_flags; /* Flags */ 448 char *fs_type; /* File server type */ 449 u_long fs_version; /* NFS version of server (2, 3, etc.)*/ 450 char *fs_proto; /* NFS protocol of server (tcp, udp, etc.) */ 451 opaque_t fs_private; /* Private data */ 452 void (*fs_prfree) (opaque_t); /* Free private data */ 453 }; 454 455 /* 456 * Per-mountpoint statistics 457 */ 458 struct am_stats { 459 time_t s_mtime; /* Mount time */ 460 u_short s_uid; /* Uid of mounter */ 461 int s_getattr; /* Count of getattrs */ 462 int s_lookup; /* Count of lookups */ 463 int s_readdir; /* Count of readdirs */ 464 int s_readlink; /* Count of readlinks */ 465 int s_statfs; /* Count of statfs */ 466 }; 467 468 /* 469 * System statistics 470 */ 471 struct amd_stats { 472 int d_drops; /* Dropped requests */ 473 int d_stale; /* Stale NFS handles */ 474 int d_mok; /* Successful mounts */ 475 int d_merr; /* Failed mounts */ 476 int d_uerr; /* Failed unmounts */ 477 }; 478 extern struct amd_stats amd_stats; 479 480 /* 481 * Map of auto-mount points. 482 */ 483 struct am_node { 484 int am_mapno; /* Map number */ 485 mntfs *am_mnt; /* Mounted filesystem */ 486 mntfs **am_mfarray; /* Filesystem sources to try to mount */ 487 char *am_name; /* "kiska": name of this node */ 488 char *am_path; /* "/home/kiska": path of this node's mount point */ 489 char *am_link; /* "/a/kiska/home/kiska/this/that": link to sub-dir */ 490 am_node *am_parent; /* Parent of this node */ 491 am_node *am_ysib; /* Younger sibling of this node */ 492 am_node *am_osib; /* Older sibling of this node */ 493 am_node *am_child; /* First child of this node */ 494 nfsattrstat am_attr; /* File attributes */ 495 #define am_fattr am_attr.ns_u.ns_attr_u 496 int am_flags; /* Boolean flags AMF_* */ 497 int am_error; /* Specific mount error */ 498 time_t am_ttl; /* Time to live */ 499 int am_timeo_w; /* Dismount wait interval */ 500 int am_timeo; /* Cache timeout interval */ 501 u_int am_gen; /* Generation number */ 502 char *am_pref; /* Mount info prefix */ 503 am_stats am_stats; /* Statistics gathering */ 504 SVCXPRT *am_transp; /* Info for quick reply */ 505 dev_t am_dev; /* Device number */ 506 dev_t am_rdev; /* Remote/real device number */ 507 #ifdef HAVE_FS_AUTOFS 508 autofs_fh_t *am_autofs_fh; 509 time_t am_autofs_ttl; /* Time to expire autofs nodes */ 510 #endif /* HAVE_FS_AUTOFS */ 511 }; 512 513 /* 514 * EXTERNALS: 515 */ 516 517 /* 518 * Amq server global functions 519 */ 520 extern amq_mount_info_list *amqproc_getmntfs_1_svc(voidp argp, struct svc_req *rqstp); 521 extern amq_mount_stats *amqproc_stats_1_svc(voidp argp, struct svc_req *rqstp); 522 extern amq_mount_tree_list *amqproc_export_1_svc(voidp argp, struct svc_req *rqstp); 523 extern amq_mount_tree_p *amqproc_mnttree_1_svc(voidp argp, struct svc_req *rqstp); 524 extern amq_string *amqproc_getvers_1_svc(voidp argp, struct svc_req *rqstp); 525 extern amq_string *amqproc_pawd_1_svc(voidp argp, struct svc_req *rqstp); 526 extern int *amqproc_getpid_1_svc(voidp argp, struct svc_req *rqstp); 527 extern int *amqproc_mount_1_svc(voidp argp, struct svc_req *rqstp); 528 extern int *amqproc_setopt_1_svc(voidp argp, struct svc_req *rqstp); 529 extern voidp amqproc_null_1_svc(voidp argp, struct svc_req *rqstp); 530 extern voidp amqproc_umnt_1_svc(voidp argp, struct svc_req *rqstp); 531 532 /* other external definitions */ 533 extern am_nfs_fh *get_root_nfs_fh(char *dir); 534 extern am_node *find_ap(char *); 535 extern am_node *get_ap_child(am_node *, char *); 536 extern bool_t xdr_amq_mount_info_qelem(XDR *xdrs, qelem *qhead); 537 extern fserver *find_nfs_srvr(mntfs *mf); 538 extern int mount_nfs_fh(am_nfs_handle_t *fhp, char *mntdir, char *fs_name, mntfs *mf); 539 extern int process_all_regular_maps(void); 540 extern cf_map_t *find_cf_map(const char *name); 541 extern int set_conf_kv(const char *section, const char *k, const char *v); 542 extern int mount_node(opaque_t arg); 543 extern int unmount_mp(am_node *mp); 544 extern int yyparse (void); 545 546 extern void amfs_mkcacheref(mntfs *mf); 547 extern int amfs_mount(am_node *mp, mntfs *mf, char *opts); 548 extern void assign_error_mntfs(am_node *mp); 549 extern am_node *next_nonerror_node(am_node *xp); 550 extern void flush_srvr_nfs_cache(fserver *fs); 551 extern void am_mounted(am_node *); 552 extern void mf_mounted(mntfs *mf, bool_t call_free_opts); 553 extern void am_unmounted(am_node *); 554 extern am_node *get_exported_ap(int index); 555 extern am_node *get_first_exported_ap(int *index); 556 extern am_node *get_next_exported_ap(int *index); 557 extern am_node *path_to_exported_ap(char *path); 558 extern am_node *exported_ap_alloc(void); 559 extern am_node *find_mf(mntfs *); 560 extern am_node *next_map(int *); 561 extern am_ops *ops_match(am_opts *, char *, char *, char *, char *, char *); 562 extern am_ops *ops_search(char *); 563 extern fserver *dup_srvr(fserver *); 564 extern void srvrlog(fserver *, char *); 565 extern int get_mountd_port(fserver *, u_short *, wchan_t); 566 extern void flush_nfs_fhandle_cache(fserver *); 567 568 extern mntfs *dup_mntfs(mntfs *); 569 extern mntfs *find_mntfs(am_ops *, am_opts *, char *, char *, char *, char *, char *); 570 extern mntfs *locate_mntfs(am_ops *, am_opts *, char *, char *, char *, char *, char *); 571 extern mntfs *new_mntfs(void); 572 extern mntfs *realloc_mntfs(mntfs *, am_ops *, am_opts *, char *, char *, char *, char *, char *); 573 extern void flush_mntfs(void); 574 extern void free_mntfs(voidp); 575 576 577 extern void amq_program_1(struct svc_req *rqstp, SVCXPRT *transp); 578 extern int background(void); 579 extern void deslashify(char *); 580 extern void do_task_notify(void); 581 extern int eval_fs_opts(am_opts *, char *, char *, char *, char *, char *); 582 extern void forcibly_timeout_mp(am_node *); 583 extern void free_map(am_node *); 584 extern void free_opts(am_opts *); 585 extern void free_srvr(fserver *); 586 extern int fwd_init(void); 587 extern int fwd_packet(int, char *, int, struct sockaddr_in *, struct sockaddr_in *, opaque_t, fwd_fun *); 588 extern void fwd_reply(void); 589 extern void get_args(int argc, char *argv[]); 590 extern wchan_t get_mntfs_wchan(mntfs *mf); 591 extern void host_normalize(char **); 592 extern void init_map(am_node *, char *); 593 extern void ins_que(qelem *, qelem *); 594 extern void insert_am(am_node *, am_node *); 595 extern int make_nfs_auth(void); 596 extern void make_root_node(void); 597 extern void map_flush_srvr(fserver *); 598 extern void mapc_add_kv(mnt_map *, char *, char *); 599 extern mnt_map *mapc_find(char *, char *, const char *); 600 extern void mapc_free(opaque_t); 601 extern int mapc_keyiter(mnt_map *, key_fun, opaque_t); 602 extern void mapc_reload(void); 603 extern int mapc_search(mnt_map *, char *, char **); 604 extern void mapc_showtypes(char *buf, size_t l); 605 extern int mapc_type_exists(const char *type); 606 extern void mk_fattr(nfsfattr *, nfsftype); 607 extern int mount_auto_node(char *, opaque_t); 608 extern int mount_automounter(int); 609 extern int mount_exported(void); 610 extern void mp_to_fh(am_node *, am_nfs_fh *); 611 extern void new_ttl(am_node *); 612 extern void nfs_quick_reply(am_node *mp, int error); 613 extern void normalize_slash(char *); 614 extern void ops_showamfstypes(char *buf, size_t l); 615 extern void ops_showfstypes(char *outbuf, size_t l); 616 extern void rem_que(qelem *); 617 extern void reschedule_timeout_mp(void); 618 extern void restart(void); 619 extern void restart_automounter_nodes(void); 620 extern int root_keyiter(key_fun *, opaque_t); 621 extern void root_newmap(const char *, const char *, const char *, const cf_map_t *); 622 extern void run_task(task_fun *, opaque_t, cb_fun *, opaque_t); 623 extern void sched_task(cb_fun *, opaque_t, wchan_t); 624 extern int softclock(void); 625 extern int timeout(u_int, void (*fn)(opaque_t), opaque_t); 626 extern void timeout_mp(opaque_t); 627 extern void untimeout(int); 628 extern void umount_exported(void); 629 extern int valid_key(char *); 630 extern void wakeup(wchan_t); 631 extern void wakeup_srvr(fserver *); 632 extern void wakeup_task(int, int, wchan_t); 633 #define SIZEOF_PID_FSNAME (16 + MAXHOSTNAMELEN) 634 extern char pid_fsname[SIZEOF_PID_FSNAME]; /* "kiska.southseas.nz:(pid%d)" */ 635 #define SIZEOF_HOSTD (2 * MAXHOSTNAMELEN + 1) 636 extern char hostd[SIZEOF_HOSTD]; /* Host+domain */ 637 #define SIZEOF_OPTS 256 /* used for char opts[] and preopts[] */ 638 639 /* 640 * Global variables. 641 */ 642 extern FILE *yyin; 643 extern SVCXPRT *current_transp; /* For nfs_quick_reply() */ 644 extern char *conf_tag; 645 #define SIZEOF_UID_STR 12 646 #define SIZEOF_GID_STR 12 647 extern char *opt_gid, gid_str[SIZEOF_GID_STR]; 648 extern char *opt_uid, uid_str[SIZEOF_UID_STR]; 649 extern int NumChildren; 650 extern int fwd_sock; 651 extern int select_intr_valid; 652 extern int immediate_abort; /* Should close-down unmounts be retried */ 653 extern int usage; 654 extern int use_conf_file; /* use amd configuration file */ 655 extern int task_notify_todo; /* Task notifier needs running */ 656 extern jmp_buf select_intr; 657 extern qelem mfhead; 658 extern struct amu_global_options gopt; /* where global options are stored */ 659 extern time_t do_mapc_reload; /* Flush & reload mount map cache */ 660 extern time_t next_softclock; /* Time to call softclock() */ 661 662 #ifdef HAVE_SIGACTION 663 extern sigset_t masked_sigs; 664 #endif /* HAVE_SIGACTION */ 665 666 #if defined(HAVE_AMU_FS_LINK) || defined(HAVE_AMU_FS_LINKX) 667 extern char *amfs_link_match(am_opts *fo); 668 #endif /* defined(HAVE_AMU_FS_LINK) || defined(HAVE_AMU_FS_LINKX) */ 669 670 #ifdef HAVE_FS_AUTOFS 671 extern int amd_use_autofs; 672 673 extern int autofs_get_fh(am_node *mp); 674 extern void autofs_release_fh(am_node *mp); 675 extern void autofs_get_mp(am_node *mp); 676 extern void autofs_release_mp(am_node *mp); 677 extern void autofs_add_fdset(fd_set *readfds); 678 extern int autofs_handle_fdset(fd_set *readfds, int nsel); 679 extern void autofs_mounted(am_node *mp); 680 extern void autofs_mount_succeeded(am_node *mp); 681 extern void autofs_mount_failed(am_node *mp); 682 extern int autofs_umount_succeeded(am_node *mp); 683 extern int autofs_umount_failed(am_node *mp); 684 extern int autofs_mount_fs(am_node *mp, mntfs *mf); 685 extern int autofs_umount_fs(am_node *mp, mntfs *mf); 686 extern void autofs_get_opts(char *opts, size_t l, autofs_fh_t *fh); 687 extern int autofs_compute_mount_flags(mntent_t *); 688 extern void autofs_timeout_mp(am_node *); 689 extern int create_autofs_service(void); 690 extern int destroy_autofs_service(void); 691 #endif /* HAVE_FS_AUTOFS */ 692 693 /**************************************************************************/ 694 /*** Generic file-system types, implemented as part of the native O/S. ***/ 695 /**************************************************************************/ 696 697 /* 698 * Loopback File System 699 * Many systems can't support this, and in any case most of the 700 * functionality is available with Symlink FS. 701 */ 702 #ifdef HAVE_FS_LOFS 703 extern am_ops lofs_ops; 704 extern int mount_lofs(char *mntdir, char *fs_name, char *opts, int on_autofs); 705 #endif /* HAVE_FS_LOFS */ 706 707 /* 708 * CD-ROM File System (CD-ROM) 709 * (HSFS: High Sierra F/S on some machines) 710 * Many systems can't support this, and in any case most of the 711 * functionality is available with program FS. 712 */ 713 #ifdef HAVE_FS_CDFS 714 extern am_ops cdfs_ops; 715 #endif /* HAVE_FS_CDFS */ 716 717 /* 718 * PC File System (MS-DOS) 719 * Many systems can't support this, and in any case most of the 720 * functionality is available with program FS. 721 */ 722 #ifdef HAVE_FS_PCFS 723 extern am_ops pcfs_ops; 724 #endif /* HAVE_FS_PCFS */ 725 726 /* 727 * Caching File System (Solaris) 728 */ 729 #ifdef HAVE_FS_CACHEFS 730 extern am_ops cachefs_ops; 731 #endif /* HAVE_FS_CACHEFS */ 732 733 /* 734 * Network File System 735 * Good, slow, NFS V.2. 736 */ 737 #ifdef HAVE_FS_NFS 738 extern am_ops nfs_ops; /* NFS */ 739 extern fserver *find_nfs_srvr (mntfs *); 740 extern qelem nfs_srvr_list; 741 #endif /* HAVE_FS_NFS */ 742 743 /* 744 * Un*x File System 745 * Normal local disk file system. 746 */ 747 #ifdef HAVE_FS_UFS 748 extern am_ops ufs_ops; /* Un*x file system */ 749 #endif /* HAVE_FS_UFS */ 750 751 /* Unix file system (irix) */ 752 #ifdef HAVE_FS_XFS 753 extern am_ops xfs_ops; /* Un*x file system */ 754 #endif /* HAVE_FS_XFS */ 755 756 /* Unix file system (irix) */ 757 #ifdef HAVE_FS_EFS 758 extern am_ops efs_ops; /* Un*x file system */ 759 #endif /* HAVE_FS_EFS */ 760 761 /**************************************************************************/ 762 /*** Automounter file-system types, implemented by amd. ***/ 763 /**************************************************************************/ 764 765 /* 766 * Root AMD File System 767 */ 768 extern am_ops amfs_root_ops; /* Root file system */ 769 770 /* 771 * Generic amfs helper methods 772 */ 773 extern am_node *amfs_generic_lookup_child(am_node *mp, char *fname, int *error_return, int op); 774 extern am_node *amfs_generic_mount_child(am_node *ap, int *error_return); 775 extern int amfs_generic_readdir(am_node *mp, nfscookie cookie, nfsdirlist *dp, nfsentry *ep, u_int count); 776 extern int amfs_generic_umount(am_node *mp, mntfs *mf); 777 extern void amfs_generic_mounted(mntfs *mf); 778 extern char *amfs_generic_match(am_opts *fo); 779 extern fserver *amfs_generic_find_srvr(mntfs *); 780 781 /* 782 * Automount File System 783 */ 784 #ifdef HAVE_AMU_FS_AUTO 785 extern am_ops amfs_auto_ops; /* Automount file system (this!) */ 786 #endif /* HAVE_AMU_FS_AUTO */ 787 788 /* 789 * Toplvl Automount File System 790 */ 791 #ifdef HAVE_AMU_FS_TOPLVL 792 extern am_ops amfs_toplvl_ops; /* Toplvl Automount file system */ 793 extern int amfs_toplvl_mount(am_node *mp, mntfs *mf); 794 extern int amfs_toplvl_umount(am_node *mp, mntfs *mf); 795 #endif /* HAVE_AMU_FS_TOPLVL */ 796 797 /* 798 * Direct Automount File System 799 */ 800 #ifdef HAVE_AMU_FS_DIRECT 801 extern am_ops amfs_direct_ops; /* Direct Automount file system (this too) */ 802 #endif /* HAVE_AMU_FS_DIRECT */ 803 804 /* 805 * Error File System 806 */ 807 #ifdef HAVE_AMU_FS_ERROR 808 extern am_ops amfs_error_ops; /* Error file system */ 809 extern am_node *amfs_error_lookup_child(am_node *mp, char *fname, int *error_return, int op); 810 extern am_node *amfs_error_mount_child(am_node *ap, int *error_return); 811 extern int amfs_error_readdir(am_node *mp, nfscookie cookie, nfsdirlist *dp, nfsentry *ep, u_int count); 812 #endif /* HAVE_AMU_FS_ERROR */ 813 814 /* 815 * NFS mounts with local existence check. 816 */ 817 #ifdef HAVE_AMU_FS_NFSL 818 extern am_ops amfs_nfsl_ops; /* NFSL */ 819 #endif /* HAVE_AMU_FS_NFSL */ 820 821 /* 822 * Multi-nfs mounts. 823 */ 824 #ifdef HAVE_AMU_FS_NFSX 825 extern am_ops amfs_nfsx_ops; /* NFSX */ 826 #endif /* HAVE_AMU_FS_NFSX */ 827 828 /* 829 * NFS host - a whole tree. 830 */ 831 #ifdef HAVE_AMU_FS_HOST 832 extern am_ops amfs_host_ops; /* NFS host */ 833 #endif /* HAVE_AMU_FS_HOST */ 834 835 /* 836 * Program File System 837 * This is useful for things like RVD. 838 */ 839 #ifdef HAVE_AMU_FS_PROGRAM 840 extern am_ops amfs_program_ops; /* Program File System */ 841 #endif /* HAVE_AMU_FS_PROGRAM */ 842 843 /* 844 * Symbolic-link file system. 845 * A "filesystem" which is just a symbol link. 846 */ 847 #ifdef HAVE_AMU_FS_LINK 848 extern am_ops amfs_link_ops; /* Symlink FS */ 849 #endif /* HAVE_AMU_FS_LINK */ 850 851 /* 852 * Symbolic-link file system, which also checks that the target of 853 * the symlink exists. 854 * A "filesystem" which is just a symbol link. 855 */ 856 #ifdef HAVE_AMU_FS_LINKX 857 extern am_ops amfs_linkx_ops; /* Symlink FS with existence check */ 858 #endif /* HAVE_AMU_FS_LINKX */ 859 860 /* 861 * Union file system 862 */ 863 #ifdef HAVE_AMU_FS_UNION 864 extern am_ops amfs_union_ops; /* Union FS */ 865 #endif /* HAVE_AMU_FS_UNION */ 866 867 #endif /* not _AMD_H */ 868