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866a560342
NetBSD/dist/am-utils/amd/amd.h
christos 866a560342 import latest am-utils.
2002-11-29 22:57:11 +00:00

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/* $NetBSD: amd.h,v 1.1.1.5 2002/11/29 22:58:08 christos Exp $ */
/*
* Copyright (c) 1997-2002 Erez Zadok
* Copyright (c) 1990 Jan-Simon Pendry
* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry at Imperial College, London.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*
* Id: amd.h,v 1.26 2002/06/24 03:05:14 ib42 Exp
*
*/
#ifndef _AMD_H
#define _AMD_H
/*
* MACROS:
*/
/* options for amd.conf */
#define CFM_BROWSABLE_DIRS 0x0001
#define CFM_MOUNT_TYPE_AUTOFS 0x0002 /* use kernel autofs support */
#define CFM_SELECTORS_IN_DEFAULTS 0x0004
#define CFM_NORMALIZE_HOSTNAMES 0x0008
#define CFM_PROCESS_LOCK 0x0010
#define CFM_PRINT_PID 0x0020
#define CFM_RESTART_EXISTING_MOUNTS 0x0040
#define CFM_SHOW_STATFS_ENTRIES 0x0080
#define CFM_FULLY_QUALIFIED_HOSTS 0x0100
#define CFM_BROWSABLE_DIRS_FULL 0x0200 /* allow '/' in readdir() */
#define CFM_UNMOUNT_ON_EXIT 0x0400 /* when amd finishing */
/* some systems (SunOS 4.x) neglect to define the mount null message */
#ifndef MOUNTPROC_NULL
# define MOUNTPROC_NULL ((u_long)(0))
#endif /* not MOUNTPROC_NULL */
/* Hash table size */
#define NKVHASH (1 << 2) /* Power of two */
/* interval between forced retries of a mount */
#define RETRY_INTERVAL 2
#define ereturn(x) { *error_return = x; return 0; }
#define NEVER (time_t) 0
/*
* TYPEDEFS:
*/
typedef struct cf_map cf_map_t;
typedef struct kv kv;
/*
* Cache map operations
*/
typedef void add_fn(mnt_map *, char *, char *);
typedef int init_fn(mnt_map *, char *, time_t *);
typedef int mtime_fn(mnt_map *, char *, time_t *);
typedef int isup_fn(mnt_map *, char *);
typedef int reload_fn(mnt_map *, char *, add_fn *);
typedef int search_fn(mnt_map *, char *, char *, char **, time_t *);
/*
* STRUCTURES:
*/
/* global amd options that are manipulated by conf.c */
struct amu_global_options {
char *arch; /* name of current architecture */
char *auto_dir; /* automounter temp dir */
char *cluster; /* cluster name */
char *karch; /* kernel architecture */
char *logfile; /* amd log file */
char *op_sys; /* operating system name ${os} */
char *op_sys_ver; /* OS version ${osver} */
char *op_sys_full; /* full OS name ${full_os} */
char *op_sys_vendor; /* name of OS vendor ${vendor} */
char *pid_file; /* PID file */
char *sub_domain; /* local domain */
char *map_options; /* global map options */
int map_reload_interval; /* map reload interval */
char *map_type; /* global map type */
char *search_path; /* search path for maps */
char *mount_type; /* mount type for map */
u_int flags; /* various CFM_* flags */
int amfs_auto_retrans; /* NFS retransmit counter */
int amfs_auto_timeo; /* NFS retry interval */
int am_timeo; /* cache duration */
int am_timeo_w; /* dismount interval */
int portmap_program; /* amd RPC program number */
#ifdef HAVE_MAP_HESIOD
char *hesiod_base; /* Hesiod rhs */
#endif /* HAVE_MAP_HESIOD */
#ifdef HAVE_MAP_LDAP
char *ldap_base; /* LDAP base */
char *ldap_hostports; /* LDAP host ports */
long ldap_cache_seconds; /* LDAP internal cache - keep seconds */
long ldap_cache_maxmem; /* LDAP internal cache - max memory (bytes) */
#endif /* HAVE_MAP_LDAP */
#ifdef HAVE_MAP_NIS
char *nis_domain; /* YP domain name */
#endif /* HAVE_MAP_NIS */
char *nfs_proto; /* NFS protocol (NULL, udp, tcp) */
int nfs_vers; /* NFS version (0, 2, 3, 4) */
};
/* if you add anything here, update conf.c:reset_cf_map() */
struct cf_map {
char *cfm_dir; /* /home, /u, /src */
char *cfm_name; /* amd.home, /etc/amd.home ... */
char *cfm_type; /* file, hesiod, ndbm, nis ... */
char *cfm_opts; /* -cache:=all, etc. */
char *cfm_search_path; /* /etc/local:/etc/amdmaps:/misc/yp */
char *cfm_tag; /* optional map tag for amd -T */
u_int cfm_flags; /* browsable_dirs? mount_type? */
};
/*
* Key-value pair
*/
struct kv {
kv *next;
char *key;
#ifdef HAVE_REGEXEC
regex_t re; /* store the regexp from regcomp() */
#endif /* HAVE_REGEXEC */
char *val;
};
struct mnt_map {
qelem hdr;
int refc; /* Reference count */
short flags; /* Allocation flags */
short alloc; /* Allocation mode */
time_t modify; /* Modify time of map */
u_int reloads; /* Number of times map was reloaded */
char *map_name; /* Name of this map */
char *wildcard; /* Wildcard value */
reload_fn *reload; /* Function to be used for reloads */
isup_fn *isup; /* Is service up or not? (1=up, 0=down) */
search_fn *search; /* Function to be used for searching */
mtime_fn *mtime; /* Modify time function */
kv *kvhash[NKVHASH]; /* Cached data */
/* options available via amd conf file */
char *cf_map_type; /* file, hesiod, ndbm, nis, etc. */
char *cf_search_path; /* /etc/local:/etc/amdmaps:/misc/yp */
void *map_data; /* Map data black box */
};
/*
* Mounting a file system may take a significant period of time. The
* problem is that if this is done in the main process thread then the
* entire automounter could be blocked, possibly hanging lots of processes
* on the system. Instead we use a continuation scheme to allow mounts to
* be attempted in a sub-process. When the sub-process exits we pick up the
* exit status (by convention a UN*X error number) and continue in a
* notifier. The notifier gets handed a data structure and can then
* determine whether the mount was successful or not. If not, it updates
* the data structure and tries again until there are no more ways to try
* the mount, or some other permanent error occurs. In the mean time no RPC
* reply is sent, even after the mount is successful. We rely on the RPC
* retry mechanism to resend the lookup request which can then be handled.
*/
struct continuation {
am_node *mp; /* Node we are trying to mount */
int retry; /* Try again? */
time_t start; /* Time we started this mount */
int callout; /* Callout identifier */
mntfs **mf; /* Current mntfs */
};
/*
* EXTERNALS:
*/
/* Amq server global functions */
extern amq_mount_info_list *amqproc_getmntfs_1_svc(voidp argp, struct svc_req *rqstp);
extern amq_mount_stats *amqproc_stats_1_svc(voidp argp, struct svc_req *rqstp);
extern amq_mount_tree_list *amqproc_export_1_svc(voidp argp, struct svc_req *rqstp);
extern amq_mount_tree_p *amqproc_mnttree_1_svc(voidp argp, struct svc_req *rqstp);
extern amq_string *amqproc_getvers_1_svc(voidp argp, struct svc_req *rqstp);
extern int *amqproc_getpid_1_svc(voidp argp, struct svc_req *rqstp);
extern int *amqproc_mount_1_svc(voidp argp, struct svc_req *rqstp);
extern int *amqproc_setopt_1_svc(voidp argp, struct svc_req *rqstp);
extern voidp amqproc_null_1_svc(voidp argp, struct svc_req *rqstp);
extern voidp amqproc_umnt_1_svc(voidp argp, struct svc_req *rqstp);
/* other external definitions */
extern am_nfs_fh *get_root_nfs_fh(char *dir);
extern am_node *find_ap(char *);
extern am_node *get_ap_child(am_node *, char *);
extern bool_t xdr_amq_mount_info_qelem(XDR *xdrs, qelem *qhead);
extern fserver *find_nfs_srvr(mntfs *mf);
extern int auto_fmount(am_node *mp);
extern int auto_fumount(am_node *mp);
extern int mount_nfs_fh(am_nfs_handle_t *fhp, char *mntdir, char *real_mntdir, char *fs_name, char *opts, int on_autofs, mntfs *mf);
extern int process_last_regular_map(void);
extern int set_conf_kv(const char *section, const char *k, const char *v);
extern int try_mount(voidp mvp);
extern int unmount_mp(am_node *mp);
extern int yyparse (void);
extern nfsentry *make_entry_chain(am_node *mp, const nfsentry *current_chain, int fully_browsable);
extern void amfs_auto_cont(int rc, int term, voidp closure);
extern void amfs_auto_mkcacheref(mntfs *mf);
extern void amfs_auto_retry(int rc, int term, voidp closure);
extern void amfs_auto_mounted(mntfs *mf);
extern int mount_amfs_toplvl(mntfs *mf, char *opts);
extern void assign_error_mntfs(am_node *mp);
extern void flush_srvr_nfs_cache(void);
extern void free_continuation(struct continuation *cp);
extern void mf_mounted(mntfs *mf);
extern void nfs_quick_reply(am_node *mp, int error);
extern void root_newmap(const char *, const char *, const char *, const cf_map_t *);
/* amd global variables */
extern FILE *yyin;
extern SVCXPRT *current_transp; /* For nfs_quick_reply() */
extern char *conf_tag;
extern char *opt_gid;
extern char *opt_uid;
extern int NumChild;
extern int fwd_sock;
extern int select_intr_valid;
extern int usage;
extern int use_conf_file; /* use amd configuration file */
extern jmp_buf select_intr;
extern qelem mfhead;
extern struct am_opts fs_static; /* copy of the options to play with */
extern struct amu_global_options gopt; /* where global options are stored */
#ifdef HAVE_SIGACTION
extern sigset_t masked_sigs;
#endif /* HAVE_SIGACTION */
#if defined(HAVE_AMU_FS_LINK) || defined(HAVE_AMU_FS_LINKX)
extern char *amfs_link_match(am_opts *fo);
extern int amfs_link_mount(am_node *mp, mntfs *mf);
extern int amfs_link_umount(am_node *mp, mntfs *mf);
#endif /* defined(HAVE_AMU_FS_LINK) || defined(HAVE_AMU_FS_LINKX) */
#ifdef HAVE_AMU_FS_NFSL
extern char *nfs_match(am_opts *fo);
#endif /* HAVE_AMU_FS_NFSL */
#if defined(HAVE_FS_NFS3) && !defined(HAVE_XDR_MOUNTRES3)
extern bool_t xdr_mountres3(XDR *xdrs, mountres3 *objp);
#endif /* defined(HAVE_FS_NFS3) && !defined(HAVE_XDR_MOUNTRES3) */
#ifdef HAVE_FS_AUTOFS
extern int amd_use_autofs;
extern autofs_fh_t *autofs_get_fh(am_node *mp);
extern void autofs_release_fh(autofs_fh_t *fh);
extern void autofs_add_fdset(fd_set *readfds);
extern int autofs_handle_fdset(fd_set *readfds, int nsel);
extern void autofs_mounted(am_node *mp);
extern void autofs_mount_succeeded(am_node *mp);
extern void autofs_mount_failed(am_node *mp);
extern int autofs_umount_succeeded(am_node *mp);
extern int autofs_umount_failed(am_node *mp);
extern void autofs_get_opts(char *opts, autofs_fh_t *fh);
extern int autofs_link_mount(am_node *mp);
extern int autofs_link_umount(am_node *mp);
extern int autofs_compute_mount_flags(mntent_t *);
extern void autofs_timeout_mp(am_node *);
extern int create_autofs_service(void);
extern int destroy_autofs_service(void);
#endif /* HAVE_FS_AUTOFS */
/* Unix file system (irix) */
#ifdef HAVE_FS_XFS
extern am_ops xfs_ops; /* Un*x file system */
#endif /* HAVE_FS_XFS */
/* Unix file system (irix) */
#ifdef HAVE_FS_EFS
extern am_ops efs_ops; /* Un*x file system */
#endif /* HAVE_FS_EFS */
#endif /* not _AMD_H */
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