1 /* $NetBSD: amd.h,v 1.1.1.3 2015/01/17 16:34:15 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2014 Erez Zadok 5 * Copyright (c) 1990 Jan-Simon Pendry 6 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine 7 * Copyright (c) 1990 The Regents of the University of California. 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * Jan-Simon Pendry at Imperial College, London. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * 38 * File: am-utils/amd/amd.h 39 * 40 */ 41 42 #ifndef _AMD_H 43 #define _AMD_H 44 45 46 /* 47 * MACROS: 48 */ 49 50 /* 51 * Define a default debug mtab path for systems 52 * that support mtab on file. 53 */ 54 #ifdef MOUNT_TABLE_ON_FILE 55 # define DEBUG_MNTTAB_FILE "/tmp/mtab" 56 #endif /* MOUNT_TABLE_ON_FILE */ 57 58 /* Max line length that info services can handle */ 59 #define INFO_MAX_LINE_LEN 1500 60 61 /* options for amd.conf */ 62 #define CFM_BROWSABLE_DIRS 0x00000001 63 #define CFM_MOUNT_TYPE_AUTOFS 0x00000002 /* use kernel autofs support */ 64 #define CFM_SELECTORS_IN_DEFAULTS 0x00000004 65 #define CFM_NORMALIZE_HOSTNAMES 0x00000008 66 #define CFM_PROCESS_LOCK 0x00000010 67 #define CFM_PRINT_PID 0x00000020 68 #define CFM_RESTART_EXISTING_MOUNTS 0x00000040 69 #define CFM_SHOW_STATFS_ENTRIES 0x00000080 70 #define CFM_FULLY_QUALIFIED_HOSTS 0x00000100 71 #define CFM_BROWSABLE_DIRS_FULL 0x00000200 /* allow '/' in readdir() */ 72 #define CFM_UNMOUNT_ON_EXIT 0x00000400 /* when amd finishing */ 73 #define CFM_USE_TCPWRAPPERS 0x00000800 74 #define CFM_AUTOFS_USE_LOFS 0x00001000 75 #define CFM_NFS_INSECURE_PORT 0x00002000 76 #define CFM_DOMAIN_STRIP 0x00004000 77 #define CFM_NORMALIZE_SLASHES 0x00008000 /* normalize slashes? */ 78 #define CFM_FORCED_UNMOUNTS 0x00010000 /* forced unmounts? */ 79 #define CFM_TRUNCATE_LOG 0x00020000 /* truncate log file? */ 80 #define CFM_SUN_MAP_SYNTAX 0x00040000 /* Sun map syntax? */ 81 #define CFM_NFS_ANY_INTERFACE 0x00080000 /* all interfaces are acceptable */ 82 83 /* defaults global flags: plock, tcpwrappers, and autofs/lofs */ 84 #define CFM_DEFAULT_FLAGS (CFM_PROCESS_LOCK|CFM_USE_TCPWRAPPERS|CFM_AUTOFS_USE_LOFS|CFM_DOMAIN_STRIP|CFM_NORMALIZE_SLASHES) 85 86 /* 87 * macro definitions for automounter vfs/vnode operations. 88 */ 89 #define VLOOK_CREATE 0x1 90 #define VLOOK_DELETE 0x2 91 #define VLOOK_LOOKUP 0x3 92 93 /* 94 * macro definitions for automounter vfs capabilities 95 */ 96 #define FS_DIRECTORY 0x0001 /* This looks like a dir, not a link */ 97 #define FS_MBACKGROUND 0x0002 /* Should background this mount */ 98 #define FS_NOTIMEOUT 0x0004 /* Don't bother with timeouts */ 99 #define FS_MKMNT 0x0008 /* Need to make the mount point */ 100 #define FS_UBACKGROUND 0x0010 /* Unmount in background */ 101 #define FS_BACKGROUND (FS_MBACKGROUND|FS_UBACKGROUND) 102 #define FS_DISCARD 0x0020 /* Discard immediately on last reference */ 103 #define FS_AMQINFO 0x0040 /* Amq is interested in this fs type */ 104 #define FS_AUTOFS 0x0080 /* This filesystem can be an autofs f/s */ 105 #define FS_DIRECT 0x0100 /* Direct mount */ 106 #define FS_ON_AUTOFS 0x0200 /* This filesystem can be mounted directly 107 onto an autofs mountpoint */ 108 109 /* 110 * macros for struct am_node (map of auto-mount points). 111 */ 112 #define AMF_NOTIMEOUT 0x0001 /* This node never times out */ 113 #define AMF_ROOT 0x0002 /* This is a root node */ 114 #define AMF_AUTOFS 0x0004 /* This node is part of an autofs filesystem */ 115 #define AMF_REMOUNT 0x0008 /* This node needs to be remounted */ 116 #define AMF_SOFTLOOKUP 0x0010 /* This node returns EIO if server is down */ 117 118 /* 119 * macros for struct mntfs (list of mounted filesystems) 120 */ 121 #define MFF_MOUNTED 0x0001 /* Node is mounted */ 122 #define MFF_MOUNTING 0x0002 /* Mount is in progress */ 123 #define MFF_UNMOUNTING 0x0004 /* Unmount is in progress */ 124 #define MFF_RESTART 0x0008 /* Restarted node */ 125 #define MFF_MKMNT 0x0010 /* Delete this node's am_mount */ 126 #define MFF_ERROR 0x0020 /* This node failed to mount */ 127 #define MFF_LOGDOWN 0x0040 /* Logged that this mount is down */ 128 #define MFF_RSTKEEP 0x0080 /* Don't timeout this filesystem - restarted */ 129 #define MFF_WANTTIMO 0x0100 /* Need a timeout call when not busy */ 130 #define MFF_NFSLINK 0x0200 /* nfsl type, and deemed a link */ 131 #define MFF_IS_AUTOFS 0x0400 /* this filesystem is of type autofs */ 132 #define MFF_NFS_SCALEDOWN 0x0800 /* the mount failed, retry with v2/UDP */ 133 #define MFF_ON_AUTOFS 0x1000 /* autofs has a lofs/link to this f/s */ 134 #define MFF_WEBNFS 0x2000 /* use public filehandle */ 135 136 /* 137 * macros for struct fserver. 138 */ 139 #define FSF_VALID 0x0001 /* Valid information available */ 140 #define FSF_DOWN 0x0002 /* This fileserver is thought to be down */ 141 #define FSF_ERROR 0x0004 /* Permanent error has occurred */ 142 #define FSF_WANT 0x0008 /* Want a wakeup call */ 143 #define FSF_PINGING 0x0010 /* Already doing pings */ 144 #define FSF_WEBNFS 0x0020 /* Don't try to contact portmapper */ 145 #define FSF_PING_UNINIT 0x0040 /* ping values have not been initilized */ 146 #define FSF_FORCE_UNMOUNT 0x0080 /* force umount of this fserver */ 147 #define FSRV_ERROR(fs) ((fs) && (((fs)->fs_flags & FSF_ERROR) == FSF_ERROR)) 148 #define FSRV_ISDOWN(fs) ((fs) && (((fs)->fs_flags & (FSF_DOWN|FSF_VALID)) == (FSF_DOWN|FSF_VALID))) 149 #define FSRV_ISUP(fs) (!(fs) || (((fs)->fs_flags & (FSF_DOWN|FSF_VALID)) == (FSF_VALID))) 150 151 /* some systems (SunOS 4.x) neglect to define the mount null message */ 152 #ifndef MOUNTPROC_NULL 153 # define MOUNTPROC_NULL ((u_long)(0)) 154 #endif /* not MOUNTPROC_NULL */ 155 156 /* 157 * Error to return if remote host is not available. 158 * Try, in order, "host down", "host unreachable", "invalid argument". 159 */ 160 #ifdef EHOSTDOWN 161 # define AM_ERRNO_HOST_DOWN EHOSTDOWN 162 #else /* not EHOSTDOWN */ 163 # ifdef EHOSTUNREACH 164 # define AM_ERRNO_HOST_DOWN EHOSTUNREACH 165 # else /* not EHOSTUNREACH */ 166 # define AM_ERRNO_HOST_DOWN EINVAL 167 # endif /* not EHOSTUNREACH */ 168 #endif /* not EHOSTDOWN */ 169 170 /* Hash table size */ 171 #define NKVHASH (1 << 2) /* Power of two */ 172 173 /* Max entries to return in one call */ 174 #define MAX_READDIR_ENTRIES 16 175 176 /* 177 * default amfs_auto retrans - 1/10th seconds 178 */ 179 #define AMFS_AUTO_RETRANS(x) ((ALLOWED_MOUNT_TIME*10+5*gopt.amfs_auto_timeo[(x)])/gopt.amfs_auto_timeo[(x)] * 2) 180 181 /* 182 * The following values can be tuned... 183 */ 184 #define AM_TTL (300) /* Default cache period (5 min) */ 185 #define AM_TTL_W (120) /* Default unmount interval (2 min) */ 186 #define AM_PINGER 30 /* NFS ping interval for live systems */ 187 #define AMFS_AUTO_TIMEO 8 /* Default amfs_auto timeout - .8s */ 188 #define AMFS_EXEC_MAP_TIMEOUT 10 /* default 10sec exec map timeout */ 189 190 /* interval between forced retries of a mount */ 191 #define RETRY_INTERVAL 2 192 193 #ifndef ROOT_MAP 194 # define ROOT_MAP "\"root\"" 195 #endif /* not ROOT_MAP */ 196 197 #define ereturn(x) do { *error_return = x; return 0; } while (0) 198 199 #define NEVER (time_t) 0 200 201 #if defined(HAVE_TCPD_H) && defined(HAVE_LIBWRAP) 202 # define AMD_SERVICE_NAME "amd" /* for tcpwrappers */ 203 #endif /* defined(HAVE_TCPD_H) && defined(HAVE_LIBWRAP) */ 204 205 /* 206 * TYPEDEFS: 207 */ 208 209 typedef struct cf_map cf_map_t; 210 typedef struct kv kv; 211 typedef struct am_node am_node; 212 typedef struct mntfs mntfs; 213 typedef struct am_loc am_loc; 214 typedef struct am_opts am_opts; 215 typedef struct am_ops am_ops; 216 typedef struct am_stats am_stats; 217 typedef struct fserver fserver; 218 219 typedef voidp wchan_t; 220 typedef voidp opaque_t; 221 222 /* 223 * Cache map operations 224 */ 225 typedef void add_fn(mnt_map *, char *, char *); 226 typedef int init_fn(mnt_map *, char *, time_t *); 227 typedef int mtime_fn(mnt_map *, char *, time_t *); 228 typedef int isup_fn(mnt_map *, char *); 229 typedef int reload_fn(mnt_map *, char *, add_fn *); 230 typedef int search_fn(mnt_map *, char *, char *, char **, time_t *); 231 typedef int task_fun(opaque_t); 232 typedef void cb_fun(int, int, opaque_t); 233 typedef void fwd_fun(voidp, int, struct sockaddr_in *, 234 struct sockaddr_in *, opaque_t, int); 235 typedef int key_fun(char *, opaque_t); 236 typedef void callout_fun(opaque_t); 237 238 /* 239 * automounter vfs/vnode operations. 240 */ 241 typedef char *(*vfs_match) (am_opts *); 242 typedef int (*vfs_init) (mntfs *); 243 typedef int (*vmount_fs) (am_node *, mntfs *); 244 typedef int (*vumount_fs) (am_node *, mntfs *); 245 typedef am_node *(*vlookup_child) (am_node *, char *, int *, int); 246 typedef am_node *(*vmount_child) (am_node *, int *); 247 typedef int (*vreaddir) (am_node *, voidp, voidp, voidp, u_int); 248 typedef am_node *(*vreadlink) (am_node *, int *); 249 typedef void (*vmounted) (mntfs *); 250 typedef void (*vumounted) (mntfs *); 251 typedef fserver *(*vffserver) (mntfs *); 252 typedef wchan_t (*vget_wchan) (mntfs *); 253 254 /* 255 * NFS progran dispatcher 256 */ 257 typedef void (*dispatcher_t)(struct svc_req *rqstp, SVCXPRT *transp); 258 259 260 /* 261 * STRUCTURES: 262 */ 263 264 /* global amd options that are manipulated by conf.c */ 265 struct amu_global_options { 266 char *arch; /* name of current architecture */ 267 char *auto_dir; /* automounter temp dir */ 268 int auto_attrcache; /* attribute cache timeout for auto dirs */ 269 char *cluster; /* cluster name */ 270 char *karch; /* kernel architecture */ 271 char *logfile; /* amd log file */ 272 char *op_sys; /* operating system name ${os} */ 273 char *op_sys_ver; /* OS version ${osver} */ 274 char *op_sys_full; /* full OS name ${full_os} */ 275 char *op_sys_vendor; /* name of OS vendor ${vendor} */ 276 char *pid_file; /* PID file */ 277 char *sub_domain; /* local domain */ 278 char *localhost_address; /* localhost address (NULL means use 127.0.0.1) */ 279 char *map_defaults; /* global map /default options */ 280 char *map_options; /* global map options */ 281 int map_reload_interval; /* map reload interval */ 282 char *map_type; /* global map type */ 283 char *search_path; /* search path for maps */ 284 char *mount_type; /* mount type for map */ 285 char *debug_mtab_file; /* path for the mtab file during debug mode */ 286 u_int flags; /* various CFM_* flags */ 287 288 #define AMU_TYPE_NONE -1 /* for amfs_auto_{timeo,retrans,toplvl} */ 289 #define AMU_TYPE_UDP 0 /* for amfs_auto_{timeo,retrans,toplvl} */ 290 #define AMU_TYPE_TCP 1 /* for amfs_auto_{timeo,retrans,toplvl} */ 291 /* 292 * Note: toplvl is only UDP, but we want to separate it from regular 293 * NFS mounts which Amd makes, because the toplvl mount is a localhost 294 * mount for which different timeo/retrans parameters may be desired. 295 */ 296 #define AMU_TYPE_TOPLVL 2 /* for amfs_auto_{timeo,retrans,toplvl} */ 297 #define AMU_TYPE_MAX 3 /* for amfs_auto_{timeo,retrans,toplvl} */ 298 int amfs_auto_retrans[AMU_TYPE_MAX]; /* NFS retransmit counter */ 299 int amfs_auto_timeo[AMU_TYPE_MAX]; /* NFS retry interval */ 300 301 int am_timeo; /* cache duration */ 302 int am_timeo_w; /* dismount interval */ 303 u_long portmap_program; /* amd RPC program number */ 304 u_short preferred_amq_port; /* preferred amq service RPC port number (0 means "any") */ 305 #ifdef HAVE_MAP_HESIOD 306 char *hesiod_base; /* Hesiod rhs */ 307 #endif /* HAVE_MAP_HESIOD */ 308 #ifdef HAVE_MAP_LDAP 309 char *ldap_base; /* LDAP base */ 310 char *ldap_hostports; /* LDAP host ports */ 311 long ldap_cache_seconds; /* LDAP internal cache - keep seconds */ 312 long ldap_cache_maxmem; /* LDAP internal cache - max memory (bytes) */ 313 long ldap_proto_version; /* LDAP protocol version */ 314 #endif /* HAVE_MAP_LDAP */ 315 #ifdef HAVE_MAP_NIS 316 char *nis_domain; /* YP domain name */ 317 #endif /* HAVE_MAP_NIS */ 318 char *nfs_proto; /* NFS protocol (NULL, udp, tcp) */ 319 int nfs_vers; /* NFS version (0, 2, 3, 4) */ 320 int nfs_vers_ping; /* NFS rpc ping version (0, 2, 3, 4) */ 321 u_int exec_map_timeout; /* timeout (seconds) for executable maps */ 322 }; 323 324 /* if you add anything here, update conf.c:reset_cf_map() */ 325 struct cf_map { 326 char *cfm_dir; /* /home, /u, /src */ 327 char *cfm_name; /* amd.home, /etc/amd.home ... */ 328 char *cfm_type; /* file, hesiod, ndbm, nis ... */ 329 char *cfm_defaults; /* map /defaults options in amd.conf */ 330 char *cfm_opts; /* -cache:=all, etc. */ 331 char *cfm_search_path; /* /etc/local:/etc/amdmaps:/misc/yp */ 332 char *cfm_tag; /* optional map tag for amd -T */ 333 u_int cfm_flags; /* browsable_dirs? mount_type? */ 334 struct cf_map *cfm_next; /* pointer to next in list (if any) */ 335 }; 336 337 /* 338 * Key-value pair 339 */ 340 struct kv { 341 kv *next; 342 char *key; 343 #ifdef HAVE_REGEXEC 344 regex_t re; /* store the regexp from regcomp() */ 345 #endif /* HAVE_REGEXEC */ 346 char *val; 347 }; 348 349 struct mnt_map { 350 qelem hdr; 351 int refc; /* Reference count */ 352 short flags; /* Allocation flags */ 353 short alloc; /* Allocation mode */ 354 time_t modify; /* Modify time of map */ 355 u_int reloads; /* Number of times map was reloaded */ 356 u_int nentries; /* Number of entries in the map */ 357 char *map_name; /* Name of this map */ 358 char *wildcard; /* Wildcard value */ 359 reload_fn *reload; /* Function to be used for reloads */ 360 isup_fn *isup; /* Is service up or not? (1=up, 0=down) */ 361 search_fn *search; /* Function to be used for searching */ 362 mtime_fn *mtime; /* Modify time function */ 363 kv *kvhash[NKVHASH]; /* Cached data */ 364 cf_map_t *cfm; /* pointer to per-map amd.conf opts, if any */ 365 void *map_data; /* Map data black box */ 366 }; 367 368 /* 369 * Options 370 */ 371 struct am_opts { 372 char *fs_glob; /* Smashed copy of global options */ 373 char *fs_local; /* Expanded copy of local options */ 374 char *fs_mtab; /* Mount table entry */ 375 /* Other options ... */ 376 char *opt_dev; 377 char *opt_delay; 378 char *opt_dir; 379 char *opt_fs; 380 char *opt_group; 381 char *opt_mount; 382 char *opt_opts; 383 char *opt_remopts; 384 char *opt_pref; 385 char *opt_cache; 386 char *opt_rfs; 387 char *opt_rhost; 388 char *opt_sublink; 389 char *opt_type; 390 char *opt_mount_type; /* "nfs" or "autofs" */ 391 char *opt_unmount; 392 char *opt_umount; /* an "alias" for opt_unmount (type:=program) */ 393 char *opt_user; 394 char *opt_maptype; /* map type: file, nis, hesiod, etc. */ 395 char *opt_cachedir; /* cache directory */ 396 char *opt_addopts; /* options to add to opt_opts */ 397 }; 398 399 struct am_ops { 400 char *fs_type; /* type of filesystems e.g. "nfsx" */ 401 vfs_match fs_match; /* fxn: match */ 402 vfs_init fs_init; /* fxn: initialization */ 403 vmount_fs mount_fs; /* fxn: mount my own vnode */ 404 vumount_fs umount_fs; /* fxn: unmount my own vnode */ 405 vlookup_child lookup_child; /* fxn: lookup path-name */ 406 vmount_child mount_child; /* fxn: mount path-name */ 407 vreaddir readdir; /* fxn: read directory */ 408 vreadlink readlink; /* fxn: read link */ 409 vmounted mounted; /* fxn: after-mount extra actions */ 410 vumounted umounted; /* fxn: after-umount extra actions */ 411 vffserver ffserver; /* fxn: find a file server */ 412 vget_wchan get_wchan; /* fxn: get the waiting channel */ 413 int nfs_fs_flags; /* filesystem flags FS_* for nfs mounts */ 414 #ifdef HAVE_FS_AUTOFS 415 int autofs_fs_flags;/* filesystem flags FS_* for autofs mounts */ 416 #endif /* HAVE_FS_AUTOFS */ 417 }; 418 419 /* 420 * List of mounted filesystems 421 */ 422 struct mntfs { 423 qelem mf_q; /* List of mounted filesystems */ 424 am_ops *mf_ops; /* Operations on this mountpoint */ 425 am_opts *mf_fo; /* File opts */ 426 char *mf_mount; /* "/a/kiska/home/kiska" */ 427 char *mf_info; /* Mount info */ 428 char *mf_auto; /* Mount info */ 429 char *mf_mopts; /* FS mount opts */ 430 char *mf_remopts; /* Remote FS mount opts */ 431 char *mf_loopdev; /* loop device name for /dev/loop mounts */ 432 fserver *mf_server; /* File server */ 433 int mf_fsflags; /* Flags FS_* copied from mf_ops->*_fs_flags */ 434 int mf_flags; /* Flags MFF_* */ 435 int mf_error; /* Error code from background mount */ 436 int mf_refc; /* Number of references to this node */ 437 int mf_cid; /* Callout id */ 438 void (*mf_prfree) (opaque_t); /* Free private space */ 439 opaque_t mf_private; /* Private - per-fs data */ 440 }; 441 442 /* 443 * Locations: bindings between keys and mntfs 444 */ 445 struct am_loc { 446 am_opts *al_fo; 447 mntfs *al_mnt; 448 int al_refc; 449 }; 450 451 452 /* 453 * List of fileservers 454 */ 455 struct fserver { 456 qelem fs_q; /* List of fileservers */ 457 int fs_refc; /* Number of references to this server */ 458 char *fs_host; /* Normalized hostname of server */ 459 struct sockaddr_in *fs_ip; /* Network address of server */ 460 int fs_cid; /* Callout id */ 461 int fs_pinger; /* Ping (keepalive) interval */ 462 int fs_flags; /* Flags */ 463 char *fs_type; /* File server type */ 464 u_long fs_version; /* NFS version of server (2, 3, etc.)*/ 465 char *fs_proto; /* NFS protocol of server (tcp, udp, etc.) */ 466 opaque_t fs_private; /* Private data */ 467 void (*fs_prfree) (opaque_t); /* Free private data */ 468 }; 469 470 /* 471 * Per-mountpoint statistics 472 */ 473 struct am_stats { 474 time_t s_mtime; /* Mount time */ 475 u_short s_uid; /* Uid of mounter */ 476 int s_getattr; /* Count of getattrs */ 477 int s_lookup; /* Count of lookups */ 478 int s_readdir; /* Count of readdirs */ 479 int s_readlink; /* Count of readlinks */ 480 int s_statfs; /* Count of statfs */ 481 int s_fsinfo; /* Count of fsinfo */ 482 int s_pathconf; /* Count of pathconf */ 483 }; 484 485 /* 486 * System statistics 487 */ 488 struct amd_stats { 489 int d_drops; /* Dropped requests */ 490 int d_stale; /* Stale NFS handles */ 491 int d_mok; /* Successful mounts */ 492 int d_merr; /* Failed mounts */ 493 int d_uerr; /* Failed unmounts */ 494 }; 495 extern struct amd_stats amd_stats; 496 497 /* 498 * Map of auto-mount points. 499 */ 500 struct am_node { 501 int am_mapno; /* Map number */ 502 am_loc *am_al; /* Mounted filesystem */ 503 am_loc **am_alarray; /* Filesystem sources to try to mount */ 504 char *am_name; /* "kiska": name of this node */ 505 char *am_path; /* "/home/kiska": path of this node's mount point */ 506 char *am_link; /* "/a/kiska/home/kiska/this/that": link to sub-dir */ 507 am_node *am_parent; /* Parent of this node */ 508 am_node *am_ysib; /* Younger sibling of this node */ 509 am_node *am_osib; /* Older sibling of this node */ 510 am_node *am_child; /* First child of this node */ 511 nfsattrstat am_attr; /* File attributes */ 512 #define am_fattr am_attr.ns_u.ns_attr_u 513 int am_flags; /* Boolean flags AMF_* */ 514 int am_error; /* Specific mount error */ 515 time_t am_ttl; /* Time to live */ 516 int am_timeo_w; /* Dismount wait interval */ 517 int am_timeo; /* Cache timeout interval */ 518 u_int am_gen; /* Generation number */ 519 char *am_pref; /* Mount info prefix */ 520 am_stats am_stats; /* Statistics gathering */ 521 SVCXPRT *am_transp; /* Info for quick reply */ 522 dev_t am_dev; /* Device number */ 523 dev_t am_rdev; /* Remote/real device number */ 524 #ifdef HAVE_FS_AUTOFS 525 autofs_fh_t *am_autofs_fh; 526 time_t am_autofs_ttl; /* Time to expire autofs nodes */ 527 #endif /* HAVE_FS_AUTOFS */ 528 int am_fd[2]; /* parent child pipe fd's for sync umount */ 529 }; 530 531 /* 532 * EXTERNALS: 533 */ 534 535 /* 536 * Amq server global functions 537 */ 538 extern amq_mount_info_list *amqproc_getmntfs_1_svc(voidp argp, struct svc_req *rqstp); 539 extern amq_mount_stats *amqproc_stats_1_svc(voidp argp, struct svc_req *rqstp); 540 extern amq_mount_tree_list *amqproc_export_1_svc(voidp argp, struct svc_req *rqstp); 541 extern amq_mount_tree_p *amqproc_mnttree_1_svc(voidp argp, struct svc_req *rqstp); 542 extern amq_string *amqproc_getvers_1_svc(voidp argp, struct svc_req *rqstp); 543 extern amq_string *amqproc_pawd_1_svc(voidp argp, struct svc_req *rqstp); 544 extern int *amqproc_getpid_1_svc(voidp argp, struct svc_req *rqstp); 545 extern int *amqproc_mount_1_svc(voidp argp, struct svc_req *rqstp); 546 extern int *amqproc_setopt_1_svc(voidp argp, struct svc_req *rqstp); 547 extern voidp amqproc_null_1_svc(voidp argp, struct svc_req *rqstp); 548 extern int *amqproc_umnt_1_svc(voidp argp, struct svc_req *rqstp); 549 extern int *amqproc_sync_umnt_1_svc_parent(voidp argp, struct svc_req *rqstp); 550 extern amq_sync_umnt *amqproc_sync_umnt_1_svc_child(voidp argp, struct svc_req *rqstp); 551 extern amq_sync_umnt *amqproc_sync_umnt_1_svc_async(voidp argp, struct svc_req *rqstp); 552 extern amq_map_info_list *amqproc_getmapinfo_1_svc(voidp argp, struct svc_req *rqstp); 553 554 /* other external definitions */ 555 extern am_nfs_handle_t *get_root_nfs_fh(char *dir, am_nfs_handle_t *nfh); 556 extern am_node *find_ap(char *); 557 extern am_node *get_ap_child(am_node *, char *); 558 extern bool_t xdr_amq_mount_info_qelem(XDR *xdrs, qelem *qhead); 559 extern bool_t xdr_amq_map_info_qelem(XDR *xdrs, qelem *qhead); 560 extern fserver *find_nfs_srvr(mntfs *mf); 561 extern int mount_nfs_fh(am_nfs_handle_t *fhp, char *mntdir, char *fs_name, mntfs *mf); 562 extern int process_all_regular_maps(void); 563 extern cf_map_t *find_cf_map(const char *name); 564 extern int set_conf_kv(const char *section, const char *k, const char *v); 565 extern int mount_node(opaque_t arg); 566 extern int unmount_mp(am_node *mp); 567 extern int conf_parse(void); /* "yyparse" renamed */ 568 extern FILE *conf_in; /* "yyin" renamed */ 569 570 extern void amfs_mkcacheref(mntfs *mf); 571 extern int amfs_mount(am_node *mp, mntfs *mf, char *opts); 572 extern void assign_error_mntfs(am_node *mp); 573 extern am_node *next_nonerror_node(am_node *xp); 574 extern void flush_srvr_nfs_cache(fserver *fs); 575 extern void am_mounted(am_node *); 576 extern void mf_mounted(mntfs *mf, bool_t call_free_opts); 577 extern void am_unmounted(am_node *); 578 extern am_node *get_exported_ap(int index); 579 extern am_node *get_first_exported_ap(int *index); 580 extern am_node *get_next_exported_ap(int *index); 581 extern am_node *path_to_exported_ap(char *path); 582 extern am_node *exported_ap_alloc(void); 583 extern am_node *find_mf(mntfs *); 584 extern am_node *next_map(int *); 585 extern am_ops *ops_match(am_opts *, char *, char *, char *, char *, char *); 586 extern am_ops *ops_search(char *); 587 extern fserver *dup_srvr(fserver *); 588 extern void srvrlog(fserver *, char *); 589 extern int get_mountd_port(fserver *, u_short *, wchan_t); 590 extern void flush_nfs_fhandle_cache(fserver *); 591 592 extern mntfs *dup_mntfs(mntfs *); 593 extern am_loc *dup_loc(am_loc *); 594 extern mntfs *find_mntfs(am_ops *, am_opts *, char *, char *, char *, char *, char *); 595 extern mntfs *locate_mntfs(am_ops *, am_opts *, char *, char *, char *, char *, char *); 596 extern am_loc *new_loc(void); 597 extern mntfs *new_mntfs(void); 598 extern mntfs *realloc_mntfs(mntfs *, am_ops *, am_opts *, char *, char *, char *, char *, char *); 599 extern void flush_mntfs(void); 600 extern void free_mntfs(voidp); 601 extern void free_loc(voidp); 602 603 604 extern void amq_program_1(struct svc_req *rqstp, SVCXPRT *transp); 605 extern int background(void); 606 extern void deslashify(char *); 607 extern void do_task_notify(void); 608 extern int eval_fs_opts(am_opts *, char *, char *, char *, char *, char *); 609 extern int file_read_line(char *, int, FILE *); 610 extern void forcibly_timeout_mp(am_node *); 611 extern void free_map(am_node *); 612 extern void free_opts(am_opts *); 613 extern am_opts *copy_opts(am_opts *); 614 extern void free_srvr(fserver *); 615 extern int fwd_init(void); 616 extern int fwd_packet(int, char *, int, struct sockaddr_in *, struct sockaddr_in *, opaque_t, fwd_fun *); 617 extern void fwd_reply(void); 618 extern void get_args(int argc, char *argv[]); 619 extern wchan_t get_mntfs_wchan(mntfs *mf); 620 extern void host_normalize(char **); 621 extern void init_map(am_node *, char *); 622 extern void ins_que(qelem *, qelem *); 623 extern void insert_am(am_node *, am_node *); 624 extern int make_nfs_auth(void); 625 extern void make_root_node(void); 626 extern void map_flush_srvr(fserver *); 627 extern void mapc_add_kv(mnt_map *, char *, char *); 628 extern mnt_map *mapc_find(char *, char *, const char *, const char *); 629 extern void mapc_free(opaque_t); 630 extern int mapc_keyiter(mnt_map *, key_fun, opaque_t); 631 extern void mapc_reload(void); 632 extern int mapc_search(mnt_map *, char *, char **); 633 extern void mapc_showtypes(char *buf, size_t l); 634 extern int mapc_type_exists(const char *type); 635 extern void mk_fattr(nfsfattr *, nfsftype); 636 extern int mount_auto_node(char *, opaque_t); 637 extern int mount_automounter(int); 638 extern int mount_exported(void); 639 extern void mp_to_fh(am_node *, am_nfs_fh *); 640 extern void mp_to_fh3(am_node *mp, am_nfs_fh3 *fhp); 641 extern void new_ttl(am_node *); 642 extern void nfs_quick_reply(am_node *mp, int error); 643 extern void normalize_slash(char *); 644 extern void notify_child(am_node *, au_etype, int, int); 645 extern void ops_showamfstypes(char *buf, size_t l); 646 extern void ops_showfstypes(char *outbuf, size_t l); 647 extern void rem_que(qelem *); 648 extern void reschedule_timeout_mp(void); 649 extern void restart(void); 650 extern void restart_automounter_nodes(void); 651 extern int root_keyiter(key_fun *, opaque_t); 652 extern void root_newmap(const char *, const char *, const char *, const cf_map_t *); 653 extern void run_task(task_fun *, opaque_t, cb_fun *, opaque_t); 654 extern void sched_task(cb_fun *, opaque_t, wchan_t); 655 extern int softclock(void); 656 extern int timeout(u_int, void (*fn)(opaque_t), opaque_t); 657 extern void timeout_mp(opaque_t); 658 extern void untimeout(int); 659 extern void umount_exported(void); 660 extern int valid_key(char *); 661 extern void wakeup(wchan_t); 662 extern void wakeup_srvr(fserver *); 663 extern void wakeup_task(int, int, wchan_t); 664 #define SIZEOF_PID_FSNAME (16 + MAXHOSTNAMELEN) 665 extern char pid_fsname[SIZEOF_PID_FSNAME]; /* "kiska.southseas.nz:(pid%d)" */ 666 #define SIZEOF_HOSTD (2 * MAXHOSTNAMELEN + 1) 667 extern char hostd[SIZEOF_HOSTD]; /* Host+domain */ 668 #define SIZEOF_OPTS 256 /* used for char opts[] and preopts[] */ 669 670 /* 671 * Global variables. 672 */ 673 extern SVCXPRT *current_transp; /* For nfs_quick_reply() */ 674 extern dispatcher_t nfs_dispatcher; 675 extern char *conf_tag; 676 #define SIZEOF_UID_STR 12 677 #define SIZEOF_GID_STR 12 678 extern char *opt_gid, gid_str[SIZEOF_GID_STR]; 679 extern char *opt_uid, uid_str[SIZEOF_UID_STR]; 680 extern int NumChildren; 681 extern int fwd_sock; 682 extern int select_intr_valid; 683 extern int immediate_abort; /* Should close-down unmounts be retried */ 684 extern int usage; 685 extern int use_conf_file; /* use amd configuration file */ 686 extern int task_notify_todo; /* Task notifier needs running */ 687 extern jmp_buf select_intr; 688 extern qelem mfhead; 689 extern struct amu_global_options gopt; /* where global options are stored */ 690 extern time_t do_mapc_reload; /* Flush & reload mount map cache */ 691 extern time_t next_softclock; /* Time to call softclock() */ 692 693 #ifdef HAVE_SIGACTION 694 extern sigset_t masked_sigs; 695 #endif /* HAVE_SIGACTION */ 696 697 #if defined(HAVE_AMU_FS_LINK) || defined(HAVE_AMU_FS_LINKX) 698 extern char *amfs_link_match(am_opts *fo); 699 #endif /* defined(HAVE_AMU_FS_LINK) || defined(HAVE_AMU_FS_LINKX) */ 700 701 #ifdef HAVE_FS_AUTOFS 702 extern int amd_use_autofs; 703 704 extern int autofs_get_fh(am_node *mp); 705 extern void autofs_release_fh(am_node *mp); 706 extern void autofs_get_mp(am_node *mp); 707 extern void autofs_release_mp(am_node *mp); 708 extern void autofs_add_fdset(fd_set *readfds); 709 extern int autofs_handle_fdset(fd_set *readfds, int nsel); 710 extern void autofs_mounted(am_node *mp); 711 extern void autofs_mount_succeeded(am_node *mp); 712 extern void autofs_mount_failed(am_node *mp); 713 extern int autofs_umount_succeeded(am_node *mp); 714 extern int autofs_umount_failed(am_node *mp); 715 extern int autofs_mount_fs(am_node *mp, mntfs *mf); 716 extern int autofs_umount_fs(am_node *mp, mntfs *mf); 717 extern void autofs_get_opts(char *opts, size_t l, autofs_fh_t *fh); 718 extern int autofs_compute_mount_flags(mntent_t *); 719 extern void autofs_timeout_mp(am_node *); 720 extern int create_autofs_service(void); 721 extern int destroy_autofs_service(void); 722 #endif /* HAVE_FS_AUTOFS */ 723 724 /**************************************************************************/ 725 /*** Generic file-system types, implemented as part of the native O/S. ***/ 726 /**************************************************************************/ 727 728 /* 729 * Loopback File System 730 * Many systems can't support this, and in any case most of the 731 * functionality is available with Symlink FS. 732 */ 733 #ifdef HAVE_FS_LOFS 734 extern am_ops lofs_ops; 735 extern int mount_lofs(char *mntdir, char *fs_name, char *opts, int on_autofs); 736 #endif /* HAVE_FS_LOFS */ 737 738 /* 739 * CD-ROM File System (CD-ROM) 740 * (HSFS: High Sierra F/S on some machines) 741 * Many systems can't support this, and in any case most of the 742 * functionality is available with program FS. 743 */ 744 #ifdef HAVE_FS_CDFS 745 extern am_ops cdfs_ops; 746 #endif /* HAVE_FS_CDFS */ 747 748 /* 749 * PC File System (MS-DOS) 750 * Many systems can't support this, and in any case most of the 751 * functionality is available with program FS. 752 */ 753 #ifdef HAVE_FS_PCFS 754 extern am_ops pcfs_ops; 755 #endif /* HAVE_FS_PCFS */ 756 757 /* 758 * UDF File System 759 * Many systems can't support this, and in any case most of the 760 * functionality is available with program FS. 761 */ 762 #ifdef HAVE_FS_UDF 763 extern am_ops udf_ops; 764 #endif /* HAVE_FS_UDF */ 765 766 #ifdef HAVE_FS_LUSTRE 767 extern am_ops lustre_ops; 768 #endif /* HAVE_FS_LUSTRE */ 769 770 /* 771 * Caching File System (Solaris) 772 */ 773 #ifdef HAVE_FS_CACHEFS 774 extern am_ops cachefs_ops; 775 #endif /* HAVE_FS_CACHEFS */ 776 777 /* 778 * In memory /tmp filesystem (Linux, NetBSD) 779 */ 780 #ifdef HAVE_FS_TMPFS 781 extern am_ops tmpfs_ops; 782 #endif /* HAVE_FS_TMPFS */ 783 /* 784 * Network File System 785 * Good, slow, NFS V.2. 786 */ 787 #ifdef HAVE_FS_NFS 788 extern am_ops nfs_ops; /* NFS */ 789 extern fserver *find_nfs_srvr (mntfs *); 790 extern qelem nfs_srvr_list; 791 #endif /* HAVE_FS_NFS */ 792 793 /* 794 * Un*x File System 795 * Normal local disk file system. 796 */ 797 #ifdef HAVE_FS_UFS 798 extern am_ops ufs_ops; /* Un*x file system */ 799 #endif /* HAVE_FS_UFS */ 800 801 /* Unix file system (irix) */ 802 #ifdef HAVE_FS_XFS 803 extern am_ops xfs_ops; /* Un*x file system */ 804 #endif /* HAVE_FS_XFS */ 805 806 /* Unix file system (ext*) */ 807 #ifdef HAVE_FS_EXT 808 extern am_ops ext2_ops; /* Un*x file system */ 809 extern am_ops ext3_ops; /* Un*x file system */ 810 extern am_ops ext4_ops; /* Un*x file system */ 811 #endif /* HAVE_FS_EXT */ 812 813 /* Unix file system (irix) */ 814 #ifdef HAVE_FS_EFS 815 extern am_ops efs_ops; /* Un*x file system */ 816 #endif /* HAVE_FS_EFS */ 817 818 /**************************************************************************/ 819 /*** Automounter file-system types, implemented by amd. ***/ 820 /**************************************************************************/ 821 822 /* 823 * Root AMD File System 824 */ 825 extern am_ops amfs_root_ops; /* Root file system */ 826 827 /* 828 * Generic amfs helper methods 829 */ 830 extern am_node *amfs_generic_lookup_child(am_node *mp, char *fname, int *error_return, int op); 831 extern am_node *amfs_generic_mount_child(am_node *ap, int *error_return); 832 extern int amfs_generic_readdir(am_node *mp, voidp cookie, voidp dp, voidp ep, u_int count); 833 extern int amfs_generic_umount(am_node *mp, mntfs *mf); 834 extern void amfs_generic_mounted(mntfs *mf); 835 extern char *amfs_generic_match(am_opts *fo); 836 extern fserver *amfs_generic_find_srvr(mntfs *); 837 838 /* 839 * Automount File System 840 */ 841 #ifdef HAVE_AMU_FS_AUTO 842 extern am_ops amfs_auto_ops; /* Automount file system (this!) */ 843 #endif /* HAVE_AMU_FS_AUTO */ 844 845 /* 846 * Toplvl Automount File System 847 */ 848 #ifdef HAVE_AMU_FS_TOPLVL 849 extern am_ops amfs_toplvl_ops; /* Toplvl Automount file system */ 850 extern int amfs_toplvl_mount(am_node *mp, mntfs *mf); 851 extern int amfs_toplvl_umount(am_node *mp, mntfs *mf); 852 #endif /* HAVE_AMU_FS_TOPLVL */ 853 854 /* 855 * Direct Automount File System 856 */ 857 #ifdef HAVE_AMU_FS_DIRECT 858 extern am_ops amfs_direct_ops; /* Direct Automount file system (this too) */ 859 #endif /* HAVE_AMU_FS_DIRECT */ 860 861 /* 862 * Error File System 863 */ 864 #ifdef HAVE_AMU_FS_ERROR 865 extern am_ops amfs_error_ops; /* Error file system */ 866 extern am_node *amfs_error_lookup_child(am_node *mp, char *fname, int *error_return, int op); 867 extern am_node *amfs_error_mount_child(am_node *ap, int *error_return); 868 extern int amfs_error_readdir(am_node *mp, voidp cookie, voidp dp, voidp ep, u_int count); 869 870 #endif /* HAVE_AMU_FS_ERROR */ 871 872 /* 873 * NFS mounts with local existence check. 874 */ 875 #ifdef HAVE_AMU_FS_NFSL 876 extern am_ops amfs_nfsl_ops; /* NFSL */ 877 #endif /* HAVE_AMU_FS_NFSL */ 878 879 /* 880 * Multi-nfs mounts. 881 */ 882 #ifdef HAVE_AMU_FS_NFSX 883 extern am_ops amfs_nfsx_ops; /* NFSX */ 884 #endif /* HAVE_AMU_FS_NFSX */ 885 886 /* 887 * NFS host - a whole tree. 888 */ 889 #ifdef HAVE_AMU_FS_HOST 890 extern am_ops amfs_host_ops; /* NFS host */ 891 #endif /* HAVE_AMU_FS_HOST */ 892 893 /* 894 * Program File System 895 * This is useful for things like RVD. 896 */ 897 #ifdef HAVE_AMU_FS_PROGRAM 898 extern am_ops amfs_program_ops; /* Program File System */ 899 #endif /* HAVE_AMU_FS_PROGRAM */ 900 901 /* 902 * Symbolic-link file system. 903 * A "filesystem" which is just a symbol link. 904 */ 905 #ifdef HAVE_AMU_FS_LINK 906 extern am_ops amfs_link_ops; /* Symlink FS */ 907 #endif /* HAVE_AMU_FS_LINK */ 908 909 /* 910 * Symbolic-link file system, which also checks that the target of 911 * the symlink exists. 912 * A "filesystem" which is just a symbol link. 913 */ 914 #ifdef HAVE_AMU_FS_LINKX 915 extern am_ops amfs_linkx_ops; /* Symlink FS with existence check */ 916 #endif /* HAVE_AMU_FS_LINKX */ 917 918 /* 919 * Union file system 920 */ 921 #ifdef HAVE_AMU_FS_UNION 922 extern am_ops amfs_union_ops; /* Union FS */ 923 #endif /* HAVE_AMU_FS_UNION */ 924 925 #endif /* not _AMD_H */ 926
Indexes created Tue Feb 24 01:34:59 UTC 2026