1 /* 2 * Copyright (c) 1997-2014 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. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * 36 * File: am-utils/amd/amd.h 37 * 38 */ 39 40 #ifndef _AMD_H 41 #define _AMD_H 42 43 44 /* 45 * MACROS: 46 */ 47 48 /* 49 * Define a default debug mtab path for systems 50 * that support mtab on file. 51 */ 52 #ifdef MOUNT_TABLE_ON_FILE 53 # define DEBUG_MNTTAB_FILE "/tmp/mtab" 54 #endif /* MOUNT_TABLE_ON_FILE */ 55 56 /* Max line length that info services can handle */ 57 #define INFO_MAX_LINE_LEN 1500 58 59 /* options for amd.conf */ 60 #define CFM_BROWSABLE_DIRS 0x00000001 61 #define CFM_MOUNT_TYPE_AUTOFS 0x00000002 /* use kernel autofs support */ 62 #define CFM_SELECTORS_IN_DEFAULTS 0x00000004 63 #define CFM_NORMALIZE_HOSTNAMES 0x00000008 64 #define CFM_PROCESS_LOCK 0x00000010 65 #define CFM_PRINT_PID 0x00000020 66 #define CFM_RESTART_EXISTING_MOUNTS 0x00000040 67 #define CFM_SHOW_STATFS_ENTRIES 0x00000080 68 #define CFM_FULLY_QUALIFIED_HOSTS 0x00000100 69 #define CFM_BROWSABLE_DIRS_FULL 0x00000200 /* allow '/' in readdir() */ 70 #define CFM_UNMOUNT_ON_EXIT 0x00000400 /* when amd finishing */ 71 #define CFM_USE_TCPWRAPPERS 0x00000800 72 #define CFM_AUTOFS_USE_LOFS 0x00001000 73 #define CFM_NFS_INSECURE_PORT 0x00002000 74 #define CFM_DOMAIN_STRIP 0x00004000 75 #define CFM_NORMALIZE_SLASHES 0x00008000 /* normalize slashes? */ 76 #define CFM_FORCED_UNMOUNTS 0x00010000 /* forced unmounts? */ 77 #define CFM_TRUNCATE_LOG 0x00020000 /* truncate log file? */ 78 #define CFM_SUN_MAP_SYNTAX 0x00040000 /* Sun map syntax? */ 79 #define CFM_NFS_ANY_INTERFACE 0x00080000 /* all interfaces are acceptable */ 80 81 /* defaults global flags: plock, tcpwrappers, and autofs/lofs */ 82 #define CFM_DEFAULT_FLAGS (CFM_PROCESS_LOCK|CFM_USE_TCPWRAPPERS|CFM_AUTOFS_USE_LOFS|CFM_DOMAIN_STRIP|CFM_NORMALIZE_SLASHES) 83 84 /* 85 * macro definitions for automounter vfs/vnode operations. 86 */ 87 #define VLOOK_CREATE 0x1 88 #define VLOOK_DELETE 0x2 89 #define VLOOK_LOOKUP 0x3 90 91 /* 92 * macro definitions for automounter vfs capabilities 93 */ 94 #define FS_DIRECTORY 0x0001 /* This looks like a dir, not a link */ 95 #define FS_MBACKGROUND 0x0002 /* Should background this mount */ 96 #define FS_NOTIMEOUT 0x0004 /* Don't bother with timeouts */ 97 #define FS_MKMNT 0x0008 /* Need to make the mount point */ 98 #define FS_UBACKGROUND 0x0010 /* Unmount in background */ 99 #define FS_BACKGROUND (FS_MBACKGROUND|FS_UBACKGROUND) 100 #define FS_DISCARD 0x0020 /* Discard immediately on last reference */ 101 #define FS_AMQINFO 0x0040 /* Amq is interested in this fs type */ 102 #define FS_AUTOFS 0x0080 /* This filesystem can be an autofs f/s */ 103 #define FS_DIRECT 0x0100 /* Direct mount */ 104 #define FS_ON_AUTOFS 0x0200 /* This filesystem can be mounted directly 105 onto an autofs mountpoint */ 106 107 /* 108 * macros for struct am_node (map of auto-mount points). 109 */ 110 #define AMF_NOTIMEOUT 0x0001 /* This node never times out */ 111 #define AMF_ROOT 0x0002 /* This is a root node */ 112 #define AMF_AUTOFS 0x0004 /* This node is part of an autofs filesystem */ 113 #define AMF_REMOUNT 0x0008 /* This node needs to be remounted */ 114 #define AMF_SOFTLOOKUP 0x0010 /* This node returns EIO if server is down */ 115 116 /* 117 * macros for struct mntfs (list of mounted filesystems) 118 */ 119 #define MFF_MOUNTED 0x0001 /* Node is mounted */ 120 #define MFF_MOUNTING 0x0002 /* Mount is in progress */ 121 #define MFF_UNMOUNTING 0x0004 /* Unmount is in progress */ 122 #define MFF_RESTART 0x0008 /* Restarted node */ 123 #define MFF_MKMNT 0x0010 /* Delete this node's am_mount */ 124 #define MFF_ERROR 0x0020 /* This node failed to mount */ 125 #define MFF_LOGDOWN 0x0040 /* Logged that this mount is down */ 126 #define MFF_RSTKEEP 0x0080 /* Don't timeout this filesystem - restarted */ 127 #define MFF_WANTTIMO 0x0100 /* Need a timeout call when not busy */ 128 #define MFF_NFSLINK 0x0200 /* nfsl type, and deemed a link */ 129 #define MFF_IS_AUTOFS 0x0400 /* this filesystem is of type autofs */ 130 #define MFF_NFS_SCALEDOWN 0x0800 /* the mount failed, retry with v2/UDP */ 131 #define MFF_ON_AUTOFS 0x1000 /* autofs has a lofs/link to this f/s */ 132 #define MFF_WEBNFS 0x2000 /* use public filehandle */ 133 134 /* 135 * macros for struct fserver. 136 */ 137 #define FSF_VALID 0x0001 /* Valid information available */ 138 #define FSF_DOWN 0x0002 /* This fileserver is thought to be down */ 139 #define FSF_ERROR 0x0004 /* Permanent error has occurred */ 140 #define FSF_WANT 0x0008 /* Want a wakeup call */ 141 #define FSF_PINGING 0x0010 /* Already doing pings */ 142 #define FSF_WEBNFS 0x0020 /* Don't try to contact portmapper */ 143 #define FSF_PING_UNINIT 0x0040 /* ping values have not been initilized */ 144 #define FSF_FORCE_UNMOUNT 0x0080 /* force umount of this fserver */ 145 #define FSRV_ERROR(fs) ((fs) && (((fs)->fs_flags & FSF_ERROR) == FSF_ERROR)) 146 #define FSRV_ISDOWN(fs) ((fs) && (((fs)->fs_flags & (FSF_DOWN|FSF_VALID)) == (FSF_DOWN|FSF_VALID))) 147 #define FSRV_ISUP(fs) (!(fs) || (((fs)->fs_flags & (FSF_DOWN|FSF_VALID)) == (FSF_VALID))) 148 149 /* some systems (SunOS 4.x) neglect to define the mount null message */ 150 #ifndef MOUNTPROC_NULL 151 # define MOUNTPROC_NULL ((u_long)(0)) 152 #endif /* not MOUNTPROC_NULL */ 153 154 /* 155 * Error to return if remote host is not available. 156 * Try, in order, "host down", "host unreachable", "invalid argument". 157 */ 158 #ifdef EHOSTDOWN 159 # define AM_ERRNO_HOST_DOWN EHOSTDOWN 160 #else /* not EHOSTDOWN */ 161 # ifdef EHOSTUNREACH 162 # define AM_ERRNO_HOST_DOWN EHOSTUNREACH 163 # else /* not EHOSTUNREACH */ 164 # define AM_ERRNO_HOST_DOWN EINVAL 165 # endif /* not EHOSTUNREACH */ 166 #endif /* not EHOSTDOWN */ 167 168 /* Hash table size */ 169 #define NKVHASH (1 << 2) /* Power of two */ 170 171 /* Max entries to return in one call */ 172 #define MAX_READDIR_ENTRIES 16 173 174 /* 175 * default amfs_auto retrans - 1/10th seconds 176 */ 177 #define AMFS_AUTO_RETRANS(x) ((ALLOWED_MOUNT_TIME*10+5*gopt.amfs_auto_timeo[(x)])/gopt.amfs_auto_timeo[(x)] * 2) 178 179 /* 180 * The following values can be tuned... 181 */ 182 #define AM_TTL (300) /* Default cache period (5 min) */ 183 #define AM_TTL_W (120) /* Default unmount interval (2 min) */ 184 #define AM_PINGER 30 /* NFS ping interval for live systems */ 185 #define AMFS_AUTO_TIMEO 8 /* Default amfs_auto timeout - .8s */ 186 #define AMFS_EXEC_MAP_TIMEOUT 10 /* default 10sec exec map timeout */ 187 188 /* interval between forced retries of a mount */ 189 #define RETRY_INTERVAL 2 190 191 #ifndef ROOT_MAP 192 # define ROOT_MAP "\"root\"" 193 #endif /* not ROOT_MAP */ 194 195 #define ereturn(x) do { *error_return = x; return 0; } while (0) 196 197 #define NEVER (time_t) 0 198 199 #if defined(HAVE_TCPD_H) && defined(HAVE_LIBWRAP) 200 # define AMD_SERVICE_NAME "amd" /* for tcpwrappers */ 201 #endif /* defined(HAVE_TCPD_H) && defined(HAVE_LIBWRAP) */ 202 203 /* 204 * TYPEDEFS: 205 */ 206 207 typedef struct cf_map cf_map_t; 208 typedef struct kv kv; 209 typedef struct am_node am_node; 210 typedef struct mntfs mntfs; 211 typedef struct am_loc am_loc; 212 typedef struct am_opts am_opts; 213 typedef struct am_ops am_ops; 214 typedef struct am_stats am_stats; 215 typedef struct fserver fserver; 216 217 typedef voidp wchan_t; 218 typedef voidp opaque_t; 219 220 /* 221 * Cache map operations 222 */ 223 typedef void add_fn(mnt_map *, char *, char *); 224 typedef int init_fn(mnt_map *, char *, time_t *); 225 typedef int mtime_fn(mnt_map *, char *, time_t *); 226 typedef int isup_fn(mnt_map *, char *); 227 typedef int reload_fn(mnt_map *, char *, add_fn *); 228 typedef int search_fn(mnt_map *, char *, char *, char **, time_t *); 229 typedef int task_fun(opaque_t); 230 typedef void cb_fun(int, int, opaque_t); 231 typedef void fwd_fun(voidp, int, struct sockaddr_in *, 232 struct sockaddr_in *, opaque_t, int); 233 typedef int key_fun(char *, opaque_t); 234 typedef void callout_fun(opaque_t); 235 236 /* 237 * automounter vfs/vnode operations. 238 */ 239 typedef char *(*vfs_match) (am_opts *); 240 typedef int (*vfs_init) (mntfs *); 241 typedef int (*vmount_fs) (am_node *, mntfs *); 242 typedef int (*vumount_fs) (am_node *, mntfs *); 243 typedef am_node *(*vlookup_child) (am_node *, char *, int *, int); 244 typedef am_node *(*vmount_child) (am_node *, int *); 245 typedef int (*vreaddir) (am_node *, voidp, voidp, voidp, u_int); 246 typedef am_node *(*vreadlink) (am_node *, int *); 247 typedef void (*vmounted) (mntfs *); 248 typedef void (*vumounted) (mntfs *); 249 typedef fserver *(*vffserver) (mntfs *); 250 typedef wchan_t (*vget_wchan) (mntfs *); 251 252 /* 253 * NFS progran dispatcher 254 */ 255 typedef void (*dispatcher_t)(struct svc_req *rqstp, SVCXPRT *transp); 256 257 258 /* 259 * STRUCTURES: 260 */ 261 262 /* global amd options that are manipulated by conf.c */ 263 struct amu_global_options { 264 char *arch; /* name of current architecture */ 265 char *auto_dir; /* automounter temp dir */ 266 int auto_attrcache; /* attribute cache timeout for auto dirs */ 267 char *cluster; /* cluster name */ 268 char *karch; /* kernel architecture */ 269 char *logfile; /* amd log file */ 270 char *op_sys; /* operating system name ${os} */ 271 char *op_sys_ver; /* OS version ${osver} */ 272 char *op_sys_full; /* full OS name ${full_os} */ 273 char *op_sys_vendor; /* name of OS vendor ${vendor} */ 274 char *pid_file; /* PID file */ 275 char *sub_domain; /* local domain */ 276 char *localhost_address; /* localhost address (NULL means use 127.0.0.1) */ 277 char *map_defaults; /* global map /default options */ 278 char *map_options; /* global map options */ 279 int map_reload_interval; /* map reload interval */ 280 char *map_type; /* global map type */ 281 char *search_path; /* search path for maps */ 282 char *mount_type; /* mount type for map */ 283 char *debug_mtab_file; /* path for the mtab file during debug mode */ 284 u_int flags; /* various CFM_* flags */ 285 286 #define AMU_TYPE_NONE -1 /* for amfs_auto_{timeo,retrans,toplvl} */ 287 #define AMU_TYPE_UDP 0 /* for amfs_auto_{timeo,retrans,toplvl} */ 288 #define AMU_TYPE_TCP 1 /* for amfs_auto_{timeo,retrans,toplvl} */ 289 /* 290 * Note: toplvl is only UDP, but we want to separate it from regular 291 * NFS mounts which Amd makes, because the toplvl mount is a localhost 292 * mount for which different timeo/retrans parameters may be desired. 293 */ 294 #define AMU_TYPE_TOPLVL 2 /* for amfs_auto_{timeo,retrans,toplvl} */ 295 #define AMU_TYPE_MAX 3 /* for amfs_auto_{timeo,retrans,toplvl} */ 296 int amfs_auto_retrans[AMU_TYPE_MAX]; /* NFS retransmit counter */ 297 int amfs_auto_timeo[AMU_TYPE_MAX]; /* NFS retry interval */ 298 299 int am_timeo; /* cache duration */ 300 int am_timeo_w; /* dismount interval */ 301 u_long portmap_program; /* amd RPC program number */ 302 u_short preferred_amq_port; /* preferred amq service RPC port number (0 means "any") */ 303 #ifdef HAVE_MAP_HESIOD 304 char *hesiod_base; /* Hesiod rhs */ 305 #endif /* HAVE_MAP_HESIOD */ 306 #ifdef HAVE_MAP_LDAP 307 char *ldap_base; /* LDAP base */ 308 char *ldap_hostports; /* LDAP host ports */ 309 long ldap_cache_seconds; /* LDAP internal cache - keep seconds */ 310 long ldap_cache_maxmem; /* LDAP internal cache - max memory (bytes) */ 311 long ldap_proto_version; /* LDAP protocol version */ 312 #endif /* HAVE_MAP_LDAP */ 313 #ifdef HAVE_MAP_NIS 314 char *nis_domain; /* YP domain name */ 315 #endif /* HAVE_MAP_NIS */ 316 char *nfs_proto; /* NFS protocol (NULL, udp, tcp) */ 317 int nfs_vers; /* NFS version (0, 2, 3, 4) */ 318 int nfs_vers_ping; /* NFS rpc ping version (0, 2, 3, 4) */ 319 u_int exec_map_timeout; /* timeout (seconds) for executable maps */ 320 }; 321 322 /* if you add anything here, update conf.c:reset_cf_map() */ 323 struct cf_map { 324 char *cfm_dir; /* /home, /u, /src */ 325 char *cfm_name; /* amd.home, /etc/amd.home ... */ 326 char *cfm_type; /* file, hesiod, ndbm, nis ... */ 327 char *cfm_defaults; /* map /defaults options in amd.conf */ 328 char *cfm_opts; /* -cache:=all, etc. */ 329 char *cfm_search_path; /* /etc/local:/etc/amdmaps:/misc/yp */ 330 char *cfm_tag; /* optional map tag for amd -T */ 331 u_int cfm_flags; /* browsable_dirs? mount_type? */ 332 struct cf_map *cfm_next; /* pointer to next in list (if any) */ 333 }; 334 335 /* 336 * Key-value pair 337 */ 338 struct kv { 339 kv *next; 340 char *key; 341 #ifdef HAVE_REGEXEC 342 regex_t re; /* store the regexp from regcomp() */ 343 #endif /* HAVE_REGEXEC */ 344 char *val; 345 }; 346 347 struct mnt_map { 348 qelem hdr; 349 int refc; /* Reference count */ 350 short flags; /* Allocation flags */ 351 short alloc; /* Allocation mode */ 352 time_t modify; /* Modify time of map */ 353 u_int reloads; /* Number of times map was reloaded */ 354 u_int nentries; /* Number of entries in the map */ 355 char *map_name; /* Name of this map */ 356 char *wildcard; /* Wildcard value */ 357 reload_fn *reload; /* Function to be used for reloads */ 358 isup_fn *isup; /* Is service up or not? (1=up, 0=down) */ 359 search_fn *search; /* Function to be used for searching */ 360 mtime_fn *mtime; /* Modify time function */ 361 kv *kvhash[NKVHASH]; /* Cached data */ 362 cf_map_t *cfm; /* pointer to per-map amd.conf opts, if any */ 363 void *map_data; /* Map data black box */ 364 }; 365 366 /* 367 * Options 368 */ 369 struct am_opts { 370 char *fs_glob; /* Smashed copy of global options */ 371 char *fs_local; /* Expanded copy of local options */ 372 char *fs_mtab; /* Mount table entry */ 373 /* Other options ... */ 374 char *opt_dev; 375 char *opt_delay; 376 char *opt_dir; 377 char *opt_fs; 378 char *opt_group; 379 char *opt_mount; 380 char *opt_opts; 381 char *opt_remopts; 382 char *opt_pref; 383 char *opt_cache; 384 char *opt_rfs; 385 char *opt_rhost; 386 char *opt_sublink; 387 char *opt_type; 388 char *opt_mount_type; /* "nfs" or "autofs" */ 389 char *opt_unmount; 390 char *opt_umount; /* an "alias" for opt_unmount (type:=program) */ 391 char *opt_user; 392 char *opt_maptype; /* map type: file, nis, hesiod, etc. */ 393 char *opt_cachedir; /* cache directory */ 394 char *opt_addopts; /* options to add to opt_opts */ 395 }; 396 397 struct am_ops { 398 char *fs_type; /* type of filesystems e.g. "nfsx" */ 399 vfs_match fs_match; /* fxn: match */ 400 vfs_init fs_init; /* fxn: initialization */ 401 vmount_fs mount_fs; /* fxn: mount my own vnode */ 402 vumount_fs umount_fs; /* fxn: unmount my own vnode */ 403 vlookup_child lookup_child; /* fxn: lookup path-name */ 404 vmount_child mount_child; /* fxn: mount path-name */ 405 vreaddir readdir; /* fxn: read directory */ 406 vreadlink readlink; /* fxn: read link */ 407 vmounted mounted; /* fxn: after-mount extra actions */ 408 vumounted umounted; /* fxn: after-umount extra actions */ 409 vffserver ffserver; /* fxn: find a file server */ 410 vget_wchan get_wchan; /* fxn: get the waiting channel */ 411 int nfs_fs_flags; /* filesystem flags FS_* for nfs mounts */ 412 #ifdef HAVE_FS_AUTOFS 413 int autofs_fs_flags;/* filesystem flags FS_* for autofs mounts */ 414 #endif /* HAVE_FS_AUTOFS */ 415 }; 416 417 /* 418 * List of mounted filesystems 419 */ 420 struct mntfs { 421 qelem mf_q; /* List of mounted filesystems */ 422 am_ops *mf_ops; /* Operations on this mountpoint */ 423 am_opts *mf_fo; /* File opts */ 424 char *mf_mount; /* "/a/kiska/home/kiska" */ 425 char *mf_info; /* Mount info */ 426 char *mf_auto; /* Mount info */ 427 char *mf_mopts; /* FS mount opts */ 428 char *mf_remopts; /* Remote FS mount opts */ 429 char *mf_loopdev; /* loop device name for /dev/loop mounts */ 430 fserver *mf_server; /* File server */ 431 int mf_fsflags; /* Flags FS_* copied from mf_ops->*_fs_flags */ 432 int mf_flags; /* Flags MFF_* */ 433 int mf_error; /* Error code from background mount */ 434 int mf_refc; /* Number of references to this node */ 435 int mf_cid; /* Callout id */ 436 void (*mf_prfree) (opaque_t); /* Free private space */ 437 opaque_t mf_private; /* Private - per-fs data */ 438 }; 439 440 /* 441 * Locations: bindings between keys and mntfs 442 */ 443 struct am_loc { 444 am_opts *al_fo; 445 mntfs *al_mnt; 446 int al_refc; 447 }; 448 449 450 /* 451 * List of fileservers 452 */ 453 struct fserver { 454 qelem fs_q; /* List of fileservers */ 455 int fs_refc; /* Number of references to this server */ 456 char *fs_host; /* Normalized hostname of server */ 457 struct sockaddr_in *fs_ip; /* Network address of server */ 458 int fs_cid; /* Callout id */ 459 int fs_pinger; /* Ping (keepalive) interval */ 460 int fs_flags; /* Flags */ 461 char *fs_type; /* File server type */ 462 u_long fs_version; /* NFS version of server (2, 3, etc.)*/ 463 char *fs_proto; /* NFS protocol of server (tcp, udp, etc.) */ 464 opaque_t fs_private; /* Private data */ 465 void (*fs_prfree) (opaque_t); /* Free private data */ 466 }; 467 468 /* 469 * Per-mountpoint statistics 470 */ 471 struct am_stats { 472 time_t s_mtime; /* Mount time */ 473 u_short s_uid; /* Uid of mounter */ 474 int s_getattr; /* Count of getattrs */ 475 int s_lookup; /* Count of lookups */ 476 int s_readdir; /* Count of readdirs */ 477 int s_readlink; /* Count of readlinks */ 478 int s_statfs; /* Count of statfs */ 479 int s_fsinfo; /* Count of fsinfo */ 480 int s_pathconf; /* Count of pathconf */ 481 }; 482 483 /* 484 * System statistics 485 */ 486 struct amd_stats { 487 int d_drops; /* Dropped requests */ 488 int d_stale; /* Stale NFS handles */ 489 int d_mok; /* Successful mounts */ 490 int d_merr; /* Failed mounts */ 491 int d_uerr; /* Failed unmounts */ 492 }; 493 extern struct amd_stats amd_stats; 494 495 /* 496 * Map of auto-mount points. 497 */ 498 struct am_node { 499 int am_mapno; /* Map number */ 500 am_loc *am_al; /* Mounted filesystem */ 501 am_loc **am_alarray; /* Filesystem sources to try to mount */ 502 char *am_name; /* "kiska": name of this node */ 503 char *am_path; /* "/home/kiska": path of this node's mount point */ 504 char *am_link; /* "/a/kiska/home/kiska/this/that": link to sub-dir */ 505 am_node *am_parent; /* Parent of this node */ 506 am_node *am_ysib; /* Younger sibling of this node */ 507 am_node *am_osib; /* Older sibling of this node */ 508 am_node *am_child; /* First child of this node */ 509 nfsattrstat am_attr; /* File attributes */ 510 #define am_fattr am_attr.ns_u.ns_attr_u 511 int am_flags; /* Boolean flags AMF_* */ 512 int am_error; /* Specific mount error */ 513 time_t am_ttl; /* Time to live */ 514 int am_timeo_w; /* Dismount wait interval */ 515 int am_timeo; /* Cache timeout interval */ 516 u_int am_gen; /* Generation number */ 517 char *am_pref; /* Mount info prefix */ 518 am_stats am_stats; /* Statistics gathering */ 519 SVCXPRT *am_transp; /* Info for quick reply */ 520 dev_t am_dev; /* Device number */ 521 dev_t am_rdev; /* Remote/real device number */ 522 #ifdef HAVE_FS_AUTOFS 523 autofs_fh_t *am_autofs_fh; 524 time_t am_autofs_ttl; /* Time to expire autofs nodes */ 525 #endif /* HAVE_FS_AUTOFS */ 526 int am_fd[2]; /* parent child pipe fd's for sync umount */ 527 }; 528 529 /* 530 * EXTERNALS: 531 */ 532 533 /* 534 * Amq server global functions 535 */ 536 extern amq_mount_info_list *amqproc_getmntfs_1_svc(voidp argp, struct svc_req *rqstp); 537 extern amq_mount_stats *amqproc_stats_1_svc(voidp argp, struct svc_req *rqstp); 538 extern amq_mount_tree_list *amqproc_export_1_svc(voidp argp, struct svc_req *rqstp); 539 extern amq_mount_tree_p *amqproc_mnttree_1_svc(voidp argp, struct svc_req *rqstp); 540 extern amq_string *amqproc_getvers_1_svc(voidp argp, struct svc_req *rqstp); 541 extern amq_string *amqproc_pawd_1_svc(voidp argp, struct svc_req *rqstp); 542 extern int *amqproc_getpid_1_svc(voidp argp, struct svc_req *rqstp); 543 extern int *amqproc_mount_1_svc(voidp argp, struct svc_req *rqstp); 544 extern int *amqproc_setopt_1_svc(voidp argp, struct svc_req *rqstp); 545 extern voidp amqproc_null_1_svc(voidp argp, struct svc_req *rqstp); 546 extern int *amqproc_umnt_1_svc(voidp argp, struct svc_req *rqstp); 547 extern int *amqproc_sync_umnt_1_svc_parent(voidp argp, struct svc_req *rqstp); 548 extern amq_sync_umnt *amqproc_sync_umnt_1_svc_child(voidp argp, struct svc_req *rqstp); 549 extern amq_sync_umnt *amqproc_sync_umnt_1_svc_async(voidp argp, struct svc_req *rqstp); 550 extern amq_map_info_list *amqproc_getmapinfo_1_svc(voidp argp, struct svc_req *rqstp); 551 552 /* other external definitions */ 553 extern am_nfs_handle_t *get_root_nfs_fh(char *dir, am_nfs_handle_t *nfh); 554 extern am_node *find_ap(char *); 555 extern am_node *get_ap_child(am_node *, char *); 556 extern bool_t xdr_amq_mount_info_qelem(XDR *xdrs, qelem *qhead); 557 extern bool_t xdr_amq_map_info_qelem(XDR *xdrs, qelem *qhead); 558 extern fserver *find_nfs_srvr(mntfs *mf); 559 extern int mount_nfs_fh(am_nfs_handle_t *fhp, char *mntdir, char *fs_name, mntfs *mf); 560 extern int process_all_regular_maps(void); 561 extern cf_map_t *find_cf_map(const char *name); 562 extern int set_conf_kv(const char *section, const char *k, const char *v); 563 extern int mount_node(opaque_t arg); 564 extern int unmount_mp(am_node *mp); 565 extern int conf_parse(void); /* "yyparse" renamed */ 566 extern FILE *conf_in; /* "yyin" renamed */ 567 568 extern void amfs_mkcacheref(mntfs *mf); 569 extern int amfs_mount(am_node *mp, mntfs *mf, char *opts); 570 extern void assign_error_mntfs(am_node *mp); 571 extern am_node *next_nonerror_node(am_node *xp); 572 extern void flush_srvr_nfs_cache(fserver *fs); 573 extern void am_mounted(am_node *); 574 extern void mf_mounted(mntfs *mf, bool_t call_free_opts); 575 extern void am_unmounted(am_node *); 576 extern am_node *get_exported_ap(int index); 577 extern am_node *get_first_exported_ap(int *index); 578 extern am_node *get_next_exported_ap(int *index); 579 extern am_node *path_to_exported_ap(char *path); 580 extern am_node *exported_ap_alloc(void); 581 extern am_node *find_mf(mntfs *); 582 extern am_node *next_map(int *); 583 extern am_ops *ops_match(am_opts *, char *, char *, char *, char *, char *); 584 extern am_ops *ops_search(char *); 585 extern fserver *dup_srvr(fserver *); 586 extern void srvrlog(fserver *, char *); 587 extern int get_mountd_port(fserver *, u_short *, wchan_t); 588 extern void flush_nfs_fhandle_cache(fserver *); 589 590 extern mntfs *dup_mntfs(mntfs *); 591 extern am_loc *dup_loc(am_loc *); 592 extern mntfs *find_mntfs(am_ops *, am_opts *, char *, char *, char *, char *, char *); 593 extern mntfs *locate_mntfs(am_ops *, am_opts *, char *, char *, char *, char *, char *); 594 extern am_loc *new_loc(void); 595 extern mntfs *new_mntfs(void); 596 extern mntfs *realloc_mntfs(mntfs *, am_ops *, am_opts *, char *, char *, char *, char *, char *); 597 extern void flush_mntfs(void); 598 extern void free_mntfs(voidp); 599 extern void free_loc(voidp); 600 601 602 extern void amq_program_1(struct svc_req *rqstp, SVCXPRT *transp); 603 extern int background(void); 604 extern void deslashify(char *); 605 extern void do_task_notify(void); 606 extern int eval_fs_opts(am_opts *, char *, char *, char *, char *, char *); 607 extern int file_read_line(char *, int, FILE *); 608 extern void forcibly_timeout_mp(am_node *); 609 extern void free_map(am_node *); 610 extern void free_opts(am_opts *); 611 extern am_opts *copy_opts(am_opts *); 612 extern void free_srvr(fserver *); 613 extern int fwd_init(void); 614 extern int fwd_packet(int, char *, int, struct sockaddr_in *, struct sockaddr_in *, opaque_t, fwd_fun *); 615 extern void fwd_reply(void); 616 extern void get_args(int argc, char *argv[]); 617 extern wchan_t get_mntfs_wchan(mntfs *mf); 618 extern void host_normalize(char **); 619 extern void init_map(am_node *, char *); 620 extern void ins_que(qelem *, qelem *); 621 extern void insert_am(am_node *, am_node *); 622 extern int make_nfs_auth(void); 623 extern void make_root_node(void); 624 extern void map_flush_srvr(fserver *); 625 extern void mapc_add_kv(mnt_map *, char *, char *); 626 extern mnt_map *mapc_find(char *, char *, const char *, const char *); 627 extern void mapc_free(opaque_t); 628 extern int mapc_keyiter(mnt_map *, key_fun *, opaque_t); 629 extern void mapc_reload(void); 630 extern int mapc_search(mnt_map *, char *, char **); 631 extern void mapc_showtypes(char *buf, size_t l); 632 extern int mapc_type_exists(const char *type); 633 extern void mk_fattr(nfsfattr *, nfsftype); 634 extern int mount_auto_node(char *, opaque_t); 635 extern int mount_automounter(int); 636 extern int mount_exported(void); 637 extern void mp_to_fh(am_node *, am_nfs_fh *); 638 extern void mp_to_fh3(am_node *mp, am_nfs_fh3 *fhp); 639 extern void new_ttl(am_node *); 640 extern void nfs_quick_reply(am_node *mp, int error); 641 extern void normalize_slash(char *); 642 extern void notify_child(am_node *, au_etype, int, int); 643 extern void ops_showamfstypes(char *buf, size_t l); 644 extern void ops_showfstypes(char *outbuf, size_t l); 645 extern void rem_que(qelem *); 646 extern void reschedule_timeout_mp(void); 647 extern void restart(void); 648 extern void restart_automounter_nodes(void); 649 extern int root_keyiter(key_fun *, opaque_t); 650 extern void root_newmap(const char *, const char *, const char *, const cf_map_t *); 651 extern void run_task(task_fun *, opaque_t, cb_fun *, opaque_t); 652 extern void sched_task(cb_fun *, opaque_t, wchan_t); 653 extern int softclock(void); 654 extern int timeout(u_int, void (*fn)(opaque_t), opaque_t); 655 extern void timeout_mp(opaque_t); 656 extern void untimeout(int); 657 extern void umount_exported(void); 658 extern int valid_key(char *); 659 extern void wakeup(wchan_t); 660 extern void wakeup_srvr(fserver *); 661 extern void wakeup_task(int, int, wchan_t); 662 #define SIZEOF_PID_FSNAME (16 + MAXHOSTNAMELEN) 663 extern char pid_fsname[SIZEOF_PID_FSNAME]; /* "kiska.southseas.nz:(pid%d)" */ 664 #define SIZEOF_HOSTD (2 * MAXHOSTNAMELEN + 1) 665 extern char hostd[SIZEOF_HOSTD]; /* Host+domain */ 666 #define SIZEOF_OPTS 256 /* used for char opts[] and preopts[] */ 667 668 /* 669 * Global variables. 670 */ 671 extern SVCXPRT *current_transp; /* For nfs_quick_reply() */ 672 extern dispatcher_t nfs_dispatcher; 673 extern char *conf_tag; 674 #define SIZEOF_UID_STR 12 675 #define SIZEOF_GID_STR 12 676 extern char *opt_gid, gid_str[SIZEOF_GID_STR]; 677 extern char *opt_uid, uid_str[SIZEOF_UID_STR]; 678 extern int NumChildren; 679 extern int fwd_sock; 680 extern int select_intr_valid; 681 extern int immediate_abort; /* Should close-down unmounts be retried */ 682 extern int usage; 683 extern int use_conf_file; /* use amd configuration file */ 684 extern int task_notify_todo; /* Task notifier needs running */ 685 extern jmp_buf select_intr; 686 extern qelem mfhead; 687 extern struct amu_global_options gopt; /* where global options are stored */ 688 extern time_t do_mapc_reload; /* Flush & reload mount map cache */ 689 extern time_t next_softclock; /* Time to call softclock() */ 690 691 #ifdef HAVE_SIGACTION 692 extern sigset_t masked_sigs; 693 #endif /* HAVE_SIGACTION */ 694 695 #if defined(HAVE_AMU_FS_LINK) || defined(HAVE_AMU_FS_LINKX) 696 extern char *amfs_link_match(am_opts *fo); 697 #endif /* defined(HAVE_AMU_FS_LINK) || defined(HAVE_AMU_FS_LINKX) */ 698 699 #ifdef HAVE_FS_AUTOFS 700 extern int amd_use_autofs; 701 702 extern int autofs_get_fh(am_node *mp); 703 extern void autofs_release_fh(am_node *mp); 704 extern void autofs_get_mp(am_node *mp); 705 extern void autofs_release_mp(am_node *mp); 706 extern void autofs_add_fdset(fd_set *readfds); 707 extern int autofs_handle_fdset(fd_set *readfds, int nsel); 708 extern void autofs_mounted(am_node *mp); 709 extern void autofs_mount_succeeded(am_node *mp); 710 extern void autofs_mount_failed(am_node *mp); 711 extern int autofs_umount_succeeded(am_node *mp); 712 extern int autofs_umount_failed(am_node *mp); 713 extern int autofs_mount_fs(am_node *mp, mntfs *mf); 714 extern int autofs_umount_fs(am_node *mp, mntfs *mf); 715 extern void autofs_get_opts(char *opts, size_t l, autofs_fh_t *fh); 716 extern int autofs_compute_mount_flags(mntent_t *); 717 extern void autofs_timeout_mp(am_node *); 718 extern int create_autofs_service(void); 719 extern int destroy_autofs_service(void); 720 #endif /* HAVE_FS_AUTOFS */ 721 722 /**************************************************************************/ 723 /*** Generic file-system types, implemented as part of the native O/S. ***/ 724 /**************************************************************************/ 725 726 /* 727 * Loopback File System 728 * Many systems can't support this, and in any case most of the 729 * functionality is available with Symlink FS. 730 */ 731 #ifdef HAVE_FS_LOFS 732 extern am_ops lofs_ops; 733 extern int mount_lofs(char *mntdir, char *fs_name, char *opts, int on_autofs); 734 #endif /* HAVE_FS_LOFS */ 735 736 /* 737 * CD-ROM File System (CD-ROM) 738 * (HSFS: High Sierra F/S on some machines) 739 * Many systems can't support this, and in any case most of the 740 * functionality is available with program FS. 741 */ 742 #ifdef HAVE_FS_CDFS 743 extern am_ops cdfs_ops; 744 #endif /* HAVE_FS_CDFS */ 745 746 /* 747 * PC File System (MS-DOS) 748 * Many systems can't support this, and in any case most of the 749 * functionality is available with program FS. 750 */ 751 #ifdef HAVE_FS_PCFS 752 extern am_ops pcfs_ops; 753 #endif /* HAVE_FS_PCFS */ 754 755 /* 756 * UDF File System 757 * Many systems can't support this, and in any case most of the 758 * functionality is available with program FS. 759 */ 760 #ifdef HAVE_FS_UDF 761 extern am_ops udf_ops; 762 #endif /* HAVE_FS_UDF */ 763 764 #ifdef HAVE_FS_LUSTRE 765 extern am_ops lustre_ops; 766 #endif /* HAVE_FS_LUSTRE */ 767 768 /* 769 * Caching File System (Solaris) 770 */ 771 #ifdef HAVE_FS_CACHEFS 772 extern am_ops cachefs_ops; 773 #endif /* HAVE_FS_CACHEFS */ 774 775 /* 776 * In memory /tmp filesystem (Linux, NetBSD) 777 */ 778 #ifdef HAVE_FS_TMPFS 779 extern am_ops tmpfs_ops; 780 #endif /* HAVE_FS_TMPFS */ 781 /* 782 * Network File System 783 * Good, slow, NFS V.2. 784 */ 785 #ifdef HAVE_FS_NFS 786 extern am_ops nfs_ops; /* NFS */ 787 extern fserver *find_nfs_srvr (mntfs *); 788 extern qelem nfs_srvr_list; 789 #endif /* HAVE_FS_NFS */ 790 791 /* 792 * Un*x File System 793 * Normal local disk file system. 794 */ 795 #ifdef HAVE_FS_UFS 796 extern am_ops ufs_ops; /* Un*x file system */ 797 #endif /* HAVE_FS_UFS */ 798 799 /* Unix file system (irix) */ 800 #ifdef HAVE_FS_XFS 801 extern am_ops xfs_ops; /* Un*x file system */ 802 #endif /* HAVE_FS_XFS */ 803 804 /* Unix file system (ext*) */ 805 #ifdef HAVE_FS_EXT 806 extern am_ops ext2_ops; /* Un*x file system */ 807 extern am_ops ext3_ops; /* Un*x file system */ 808 extern am_ops ext4_ops; /* Un*x file system */ 809 #endif /* HAVE_FS_EXT */ 810 811 /* Unix file system (irix) */ 812 #ifdef HAVE_FS_EFS 813 extern am_ops efs_ops; /* Un*x file system */ 814 #endif /* HAVE_FS_EFS */ 815 816 /**************************************************************************/ 817 /*** Automounter file-system types, implemented by amd. ***/ 818 /**************************************************************************/ 819 820 /* 821 * Root AMD File System 822 */ 823 extern am_ops amfs_root_ops; /* Root file system */ 824 825 /* 826 * Generic amfs helper methods 827 */ 828 extern am_node *amfs_generic_lookup_child(am_node *mp, char *fname, int *error_return, int op); 829 extern am_node *amfs_generic_mount_child(am_node *ap, int *error_return); 830 extern int amfs_generic_readdir(am_node *mp, voidp cookie, voidp dp, voidp ep, u_int count); 831 extern int amfs_generic_umount(am_node *mp, mntfs *mf); 832 extern void amfs_generic_mounted(mntfs *mf); 833 extern char *amfs_generic_match(am_opts *fo); 834 extern fserver *amfs_generic_find_srvr(mntfs *); 835 836 /* 837 * Automount File System 838 */ 839 #ifdef HAVE_AMU_FS_AUTO 840 extern am_ops amfs_auto_ops; /* Automount file system (this!) */ 841 #endif /* HAVE_AMU_FS_AUTO */ 842 843 /* 844 * Toplvl Automount File System 845 */ 846 #ifdef HAVE_AMU_FS_TOPLVL 847 extern am_ops amfs_toplvl_ops; /* Toplvl Automount file system */ 848 extern int amfs_toplvl_mount(am_node *mp, mntfs *mf); 849 extern int amfs_toplvl_umount(am_node *mp, mntfs *mf); 850 #endif /* HAVE_AMU_FS_TOPLVL */ 851 852 /* 853 * Direct Automount File System 854 */ 855 #ifdef HAVE_AMU_FS_DIRECT 856 extern am_ops amfs_direct_ops; /* Direct Automount file system (this too) */ 857 #endif /* HAVE_AMU_FS_DIRECT */ 858 859 /* 860 * Error File System 861 */ 862 #ifdef HAVE_AMU_FS_ERROR 863 extern am_ops amfs_error_ops; /* Error file system */ 864 extern am_node *amfs_error_lookup_child(am_node *mp, char *fname, int *error_return, int op); 865 extern am_node *amfs_error_mount_child(am_node *ap, int *error_return); 866 extern int amfs_error_readdir(am_node *mp, voidp cookie, voidp dp, voidp ep, u_int count); 867 868 #endif /* HAVE_AMU_FS_ERROR */ 869 870 /* 871 * NFS mounts with local existence check. 872 */ 873 #ifdef HAVE_AMU_FS_NFSL 874 extern am_ops amfs_nfsl_ops; /* NFSL */ 875 #endif /* HAVE_AMU_FS_NFSL */ 876 877 /* 878 * Multi-nfs mounts. 879 */ 880 #ifdef HAVE_AMU_FS_NFSX 881 extern am_ops amfs_nfsx_ops; /* NFSX */ 882 #endif /* HAVE_AMU_FS_NFSX */ 883 884 /* 885 * NFS host - a whole tree. 886 */ 887 #ifdef HAVE_AMU_FS_HOST 888 extern am_ops amfs_host_ops; /* NFS host */ 889 #endif /* HAVE_AMU_FS_HOST */ 890 891 /* 892 * Program File System 893 * This is useful for things like RVD. 894 */ 895 #ifdef HAVE_AMU_FS_PROGRAM 896 extern am_ops amfs_program_ops; /* Program File System */ 897 #endif /* HAVE_AMU_FS_PROGRAM */ 898 899 /* 900 * Symbolic-link file system. 901 * A "filesystem" which is just a symbol link. 902 */ 903 #ifdef HAVE_AMU_FS_LINK 904 extern am_ops amfs_link_ops; /* Symlink FS */ 905 #endif /* HAVE_AMU_FS_LINK */ 906 907 /* 908 * Symbolic-link file system, which also checks that the target of 909 * the symlink exists. 910 * A "filesystem" which is just a symbol link. 911 */ 912 #ifdef HAVE_AMU_FS_LINKX 913 extern am_ops amfs_linkx_ops; /* Symlink FS with existence check */ 914 #endif /* HAVE_AMU_FS_LINKX */ 915 916 /* 917 * Union file system 918 */ 919 #ifdef HAVE_AMU_FS_UNION 920 extern am_ops amfs_union_ops; /* Union FS */ 921 #endif /* HAVE_AMU_FS_UNION */ 922 923 #endif /* not _AMD_H */ 924