hlfsd.h revision 38494
138494Sobrien/* 238494Sobrien * Copyright (c) 1997-1998 Erez Zadok 338494Sobrien * Copyright (c) 1989 Jan-Simon Pendry 438494Sobrien * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 538494Sobrien * Copyright (c) 1989 The Regents of the University of California. 638494Sobrien * All rights reserved. 738494Sobrien * 838494Sobrien * This code is derived from software contributed to Berkeley by 938494Sobrien * Jan-Simon Pendry at Imperial College, London. 1038494Sobrien * 1138494Sobrien * Redistribution and use in source and binary forms, with or without 1238494Sobrien * modification, are permitted provided that the following conditions 1338494Sobrien * are met: 1438494Sobrien * 1. Redistributions of source code must retain the above copyright 1538494Sobrien * notice, this list of conditions and the following disclaimer. 1638494Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1738494Sobrien * notice, this list of conditions and the following disclaimer in the 1838494Sobrien * documentation and/or other materials provided with the distribution. 1938494Sobrien * 3. All advertising materials mentioning features or use of this software 2038494Sobrien * must display the following acknowledgement: 2138494Sobrien * This product includes software developed by the University of 2238494Sobrien * California, Berkeley and its contributors. 2338494Sobrien * 4. Neither the name of the University nor the names of its contributors 2438494Sobrien * may be used to endorse or promote products derived from this software 2538494Sobrien * without specific prior written permission. 2638494Sobrien * 2738494Sobrien * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2838494Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2938494Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 3038494Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 3138494Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3238494Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3338494Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3438494Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3538494Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3638494Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3738494Sobrien * SUCH DAMAGE. 3838494Sobrien * 3938494Sobrien * %W% (Berkeley) %G% 4038494Sobrien * 4138494Sobrien * $Id: hlfs.h,v 1.9 1993/09/13 15:11:00 ezk Exp $ 4238494Sobrien * 4338494Sobrien * HLFSD was written at Columbia University Computer Science Department, by 4438494Sobrien * Erez Zadok <ezk@cs.columbia.edu> and Alexander Dupuy <dupuy@cs.columbia.edu> 4538494Sobrien * It is being distributed under the same terms and conditions as amd does. 4638494Sobrien */ 4738494Sobrien 4838494Sobrien#ifndef _HLFSD_HLFS_H 4938494Sobrien#define _HLFSD_HLFS_H 5038494Sobrien 5138494Sobrien/* 5238494Sobrien * MACROS AND CONSTANTS: 5338494Sobrien */ 5438494Sobrien 5538494Sobrien#define HLFSD_VERSION "hlfsd 1.1 (March 4, 1997-1998)" 5638494Sobrien#define PERS_SPOOLMODE 0755 5738494Sobrien#define OPEN_SPOOLMODE 01777 5838494Sobrien#define DOTSTRING "." 5938494Sobrien 6038494Sobrien/* 6138494Sobrien * ROOTID and SLINKID are the fixed "faked" node IDs (inodes) for 6238494Sobrien * the '.' (also '..') and the one symlink within the hlfs. 6338494Sobrien * They must always be unique, and should never match what a UID 6438494Sobrien * could be. 6538494Sobrien * They used to be -1 and -2, respectively. 6638494Sobrien * 6738494Sobrien * I used to cast these to (uid_t) but it failed to compile 6838494Sobrien * with /opt/SUNWspro/bin/cc because uid_t is long, while struct fattr's 6938494Sobrien * uid field is u_int. Then it failed to compile on some linux systems 7038494Sobrien * which define uid_t to be unsigned short, so I used the lowest common 7138494Sobrien * size which is unsigned short. 7238494Sobrien */ 7338494Sobrien#ifdef EXPERIMENTAL_UID_SIZE 7438494Sobrien#define UID_SHIFT 30 7538494Sobrien# define ROOTID ((1 << UID_SHIFT) - 1) 7638494Sobrien# define SLINKID ((1 << UID_SHIFT) - 2) 7738494Sobrien# define INVALIDID ((1 << UID_SHIFT) - 3) 7838494Sobrien#else /* not EXPERIMENTAL_UID_SIZE */ 7938494Sobrien/* 8038494Sobrien * XXX: this will cause problems to systems with UIDs greater than 8138494Sobrien * MAX_UNSIGNED_SHORT-3. 8238494Sobrien */ 8338494Sobrien# define ROOTID (((unsigned short) ~0) - 1) 8438494Sobrien# define SLINKID (((unsigned short) ~0) - 2) 8538494Sobrien# define INVALIDID (((unsigned short) ~0) - 3) 8638494Sobrien#endif /* not EXPERIMENTAL_UID_SIZE */ 8738494Sobrien 8838494Sobrien 8938494Sobrien#define DOTCOOKIE 1 9038494Sobrien#define DOTDOTCOOKIE 2 9138494Sobrien#define SLINKCOOKIE 3 9238494Sobrien 9338494Sobrien#define ALT_SPOOLDIR "/var/hlfs" /* symlink to use if others fail */ 9438494Sobrien#define HOME_SUBDIR ".hlfsdir" /* dirname in user's home dir */ 9538494Sobrien#define DEFAULT_DIRNAME "/hlfs/home" 9638494Sobrien#define DEFAULT_INTERVAL 900 /* secs b/t re-reads of the password maps */ 9738494Sobrien#define DEFAULT_CACHE_INTERVAL 300 /* secs during which assume a link is up */ 9838494Sobrien#define DEFAULT_HLFS_GROUP "hlfs" /* Group name for special hlfs_gid */ 9938494Sobrien 10038494Sobrien#define PROGNAMESZ (MAXHOSTNAMELEN - 5) 10138494Sobrien 10238494Sobrien#ifdef HAVE_SYSLOG 10338494Sobrien# define DEFAULT_LOGFILE "syslog" 10438494Sobrien#else /* not HAVE)_SYSLOG */ 10538494Sobrien# define DEFAULT_LOGFILE 0 10638494Sobrien#endif /* not HAVE)_SYSLOG */ 10738494Sobrien 10838494Sobrien#define ERRM ": %m" 10938494Sobrien#define fatalerror(str) \ 11038494Sobrien (fatal (strcat (strnsave ((str), strlen ((str)) + sizeof (ERRM) - 1), ERRM))) 11138494Sobrien 11238494Sobrien/* 11338494Sobrien * TYPDEFS: 11438494Sobrien */ 11538494Sobrientypedef struct uid2home_t uid2home_t; 11638494Sobrientypedef struct username2uid_t username2uid_t; 11738494Sobrien 11838494Sobrien 11938494Sobrien/* 12038494Sobrien * STRUCTURES: 12138494Sobrien */ 12238494Sobrienstruct uid2home_t { 12338494Sobrien uid_t uid; /* XXX: with or without UID_OFFSET? */ 12438494Sobrien pid_t child; 12538494Sobrien char *home; /* really allocated */ 12638494Sobrien char *uname; /* an xref ptr to username2uid_t->username */ 12738494Sobrien u_long last_access_time; 12838494Sobrien int last_status; /* 0=used $HOME/.hlfsspool; !0=used alt dir */ 12938494Sobrien}; 13038494Sobrien 13138494Sobrienstruct username2uid_t { 13238494Sobrien char *username; /* really allocated */ 13338494Sobrien uid_t uid; /* XXX: with or without UID_OFFSET? */ 13438494Sobrien char *home; /* an xref ptr to uid2home_t->home */ 13538494Sobrien}; 13638494Sobrien 13738494Sobrien/* 13838494Sobrien * EXTERNALS: 13938494Sobrien */ 14038494Sobrienextern RETSIGTYPE cleanup(int); 14138494Sobrienextern RETSIGTYPE interlock(int); 14238494Sobrienextern SVCXPRT *nfs_program_2_transp; /* For quick_reply() */ 14338494Sobrienextern SVCXPRT *nfsxprt; 14438494Sobrienextern char *alt_spooldir; 14538494Sobrienextern char *home_subdir; 14638494Sobrienextern char *homedir(int); 14738494Sobrienextern char *mailbox(int, char *); 14838494Sobrienextern char *passwdfile; 14938494Sobrienextern char *slinkname; 15038494Sobrienextern char mboxfile[]; 15138494Sobrienextern gid_t hlfs_gid; 15238494Sobrienextern int cache_interval; 15338494Sobrienextern int noverify; 15438494Sobrienextern int serverpid; 15538494Sobrienextern int sys_nerr; 15638494Sobrienextern int untab_index(char *username); 15738494Sobrienextern am_nfs_fh *root_fhp; 15838494Sobrienextern am_nfs_fh root; 15938494Sobrienextern nfstime startup; 16038494Sobrienextern uid2home_t *plt_search(int); 16138494Sobrienextern username2uid_t *untab; /* user name table */ 16238494Sobrienextern void fatal(char *); 16338494Sobrienextern void plt_init(void); 16438494Sobrienextern void hlfsd_init_filehandles(void); 16538494Sobrien 16638494Sobrien#if defined(DEBUG) || defined(DEBUG_PRINT) 16738494Sobrienextern void plt_dump(uid2home_t *, pid_t); 16838494Sobrienextern void plt_print(int); 16938494Sobrien#endif /* defined(DEBUG) || defined(DEBUG_PRINT) */ 17038494Sobrien 17138494Sobrien#endif /* _HLFSD_HLFS_H */ 172