1/* $NetBSD: hlfsd.h,v 1.1.1.2 2009/03/20 20:26:55 christos Exp $ */ 2 3/* 4 * Copyright (c) 1997-2009 Erez Zadok 5 * Copyright (c) 1989 Jan-Simon Pendry 6 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 7 * Copyright (c) 1989 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. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgment: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * 42 * File: am-utils/hlfsd/hlfsd.h 43 * 44 * HLFSD was written at Columbia University Computer Science Department, by 45 * Erez Zadok <ezk@cs.columbia.edu> and Alexander Dupuy <dupuy@cs.columbia.edu> 46 * It is being distributed under the same terms and conditions as amd does. 47 */ 48 49#ifndef _HLFSD_HLFS_H 50#define _HLFSD_HLFS_H 51 52/* 53 * MACROS AND CONSTANTS: 54 */ 55 56#define HLFSD_VERSION "hlfsd 1.2 (1993-2002)" 57#define PERS_SPOOLMODE 0755 58#define OPEN_SPOOLMODE 01777 59#define DOTSTRING "." 60 61/* 62 * ROOTID and SLINKID are the fixed "faked" node IDs (inodes) for 63 * the '.' (also '..') and the one symlink within the hlfs. 64 * They must always be unique, and should never match what a UID 65 * could be. 66 * They used to be -1 and -2, respectively. 67 * 68 * I used to cast these to (uid_t) but it failed to compile 69 * with /opt/SUNWspro/bin/cc because uid_t is long, while struct fattr's 70 * uid field is u_int. Then it failed to compile on some linux systems 71 * which define uid_t to be unsigned short, so I used the lowest common 72 * size which is unsigned short. 73 */ 74/* 75 * XXX: this will cause problems to systems with UIDs greater than 76 * MAX_UNSIGNED_SHORT-3. 77 */ 78#define ROOTID (((unsigned short) ~0) - 1) 79#define SLINKID (((unsigned short) ~0) - 2) 80#ifndef INVALIDID 81/* this is also defined in include/am_utils.h */ 82# define INVALIDID (((unsigned short) ~0) - 3) 83#endif /* not INVALIDID */ 84 85#define DOTCOOKIE 1 86#define DOTDOTCOOKIE 2 87#define SLINKCOOKIE 3 88 89#define ALT_SPOOLDIR "/var/hlfs" /* symlink to use if others fail */ 90#define HOME_SUBDIR ".hlfsdir" /* dirname in user's home dir */ 91#define DEFAULT_DIRNAME "/hlfs/home" 92#define DEFAULT_INTERVAL 900 /* secs b/t re-reads of the password maps */ 93#define DEFAULT_CACHE_INTERVAL 300 /* secs during which assume a link is up */ 94#define DEFAULT_HLFS_GROUP "hlfs" /* Group name for special hlfs_gid */ 95 96#define PROGNAMESZ (MAXHOSTNAMELEN - 5) 97 98#ifdef HAVE_SYSLOG 99# define DEFAULT_LOGFILE "syslog" 100#else /* not HAVE)_SYSLOG */ 101# define DEFAULT_LOGFILE 0 102#endif /* not HAVE)_SYSLOG */ 103 104 105/* 106 * TYPEDEFS: 107 */ 108typedef struct uid2home_t uid2home_t; 109typedef struct username2uid_t username2uid_t; 110 111 112/* 113 * STRUCTURES: 114 */ 115struct uid2home_t { 116 uid_t uid; /* XXX: with or without UID_OFFSET? */ 117 pid_t child; 118 char *home; /* really allocated */ 119 char *uname; /* an xref ptr to username2uid_t->username */ 120 u_long last_access_time; 121 int last_status; /* 0=used $HOME/.hlfsspool; !0=used alt dir */ 122}; 123 124struct username2uid_t { 125 char *username; /* really allocated */ 126 uid_t uid; /* XXX: with or without UID_OFFSET? */ 127 char *home; /* an xref ptr to uid2home_t->home */ 128}; 129 130/* 131 * EXTERNALS: 132 */ 133extern RETSIGTYPE cleanup(int); 134extern RETSIGTYPE interlock(int); 135extern SVCXPRT *nfs_program_2_transp; /* For quick_reply() */ 136extern SVCXPRT *nfsxprt; 137extern char *alt_spooldir; 138extern char *home_subdir; 139extern char *homedir(int, int); 140extern char *mailbox(int, char *); 141extern char *passwdfile; 142extern char *slinkname; 143extern gid_t hlfs_gid; 144extern u_int cache_interval; 145extern int noverify; 146extern int serverpid; 147extern int untab_index(char *username); 148extern am_nfs_fh *root_fhp; 149extern am_nfs_fh root; 150extern nfstime startup; 151extern uid2home_t *plt_search(u_int); 152extern username2uid_t *untab; /* user name table */ 153extern void fatal(char *); 154extern void plt_init(void); 155extern void hlfsd_init_filehandles(void); 156 157#if defined(DEBUG) || defined(DEBUG_PRINT) 158extern void plt_dump(uid2home_t *, pid_t); 159extern void plt_print(int); 160#endif /* defined(DEBUG) || defined(DEBUG_PRINT) */ 161 162#endif /* _HLFSD_HLFS_H */ 163