1/* 2 * Copyright (c) 1997-2014 Erez Zadok 3 * Copyright (c) 1989 Jan-Simon Pendry 4 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine 5 * Copyright (c) 1989 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/hlfsd/hlfsd.h 37 * 38 * HLFSD was written at Columbia University Computer Science Department, by 39 * Erez Zadok <ezk@cs.columbia.edu> and Alexander Dupuy <dupuy@cs.columbia.edu> 40 * It is being distributed under the same terms and conditions as amd does. 41 */ 42 43#ifndef _HLFSD_HLFS_H 44#define _HLFSD_HLFS_H 45 46/* 47 * MACROS AND CONSTANTS: 48 */ 49 50#define HLFSD_VERSION "hlfsd 1.2 (1993-2002)" 51#define PERS_SPOOLMODE 0755 52#define OPEN_SPOOLMODE 01777 53#define DOTSTRING "." 54 55/* 56 * ROOTID and SLINKID are the fixed "faked" node IDs (inodes) for 57 * the '.' (also '..') and the one symlink within the hlfs. 58 * They must always be unique, and should never match what a UID 59 * could be. 60 * They used to be -1 and -2, respectively. 61 * 62 * I used to cast these to (uid_t) but it failed to compile 63 * with /opt/SUNWspro/bin/cc because uid_t is long, while struct fattr's 64 * uid field is u_int. Then it failed to compile on some linux systems 65 * which define uid_t to be unsigned short, so I used the lowest common 66 * size which is unsigned short. 67 */ 68/* 69 * XXX: this will cause problems to systems with UIDs greater than 70 * MAX_UNSIGNED_SHORT-3. 71 */ 72#define ROOTID (((unsigned short) ~0) - 1) 73#define SLINKID (((unsigned short) ~0) - 2) 74#ifndef INVALIDID 75/* this is also defined in include/am_utils.h */ 76# define INVALIDID (((unsigned short) ~0) - 3) 77#endif /* not INVALIDID */ 78 79#define DOTCOOKIE 1 80#define DOTDOTCOOKIE 2 81#define SLINKCOOKIE 3 82 83#define ALT_SPOOLDIR "/var/hlfs" /* symlink to use if others fail */ 84#define HOME_SUBDIR ".hlfsdir" /* dirname in user's home dir */ 85#define DEFAULT_DIRNAME "/hlfs/home" 86#define DEFAULT_INTERVAL 900 /* secs b/t re-reads of the password maps */ 87#define DEFAULT_CACHE_INTERVAL 300 /* secs during which assume a link is up */ 88#define DEFAULT_HLFS_GROUP "hlfs" /* Group name for special hlfs_gid */ 89 90#define PROGNAMESZ (MAXHOSTNAMELEN - 5) 91 92#ifdef HAVE_SYSLOG 93# define DEFAULT_LOGFILE "syslog" 94#else /* not HAVE)_SYSLOG */ 95# define DEFAULT_LOGFILE 0 96#endif /* not HAVE)_SYSLOG */ 97 98 99/* 100 * TYPEDEFS: 101 */ 102typedef struct uid2home_t uid2home_t; 103typedef struct username2uid_t username2uid_t; 104 105 106/* 107 * STRUCTURES: 108 */ 109struct uid2home_t { 110 uid_t uid; /* XXX: with or without UID_OFFSET? */ 111 pid_t child; 112 char *home; /* really allocated */ 113 char *uname; /* an xref ptr to username2uid_t->username */ 114 u_long last_access_time; 115 int last_status; /* 0=used $HOME/.hlfsspool; !0=used alt dir */ 116}; 117 118struct username2uid_t { 119 char *username; /* really allocated */ 120 uid_t uid; /* XXX: with or without UID_OFFSET? */ 121 char *home; /* an xref ptr to uid2home_t->home */ 122}; 123 124/* 125 * EXTERNALS: 126 */ 127extern RETSIGTYPE cleanup(int); 128extern RETSIGTYPE interlock(int); 129extern SVCXPRT *nfs_program_2_transp; /* For quick_reply() */ 130extern SVCXPRT *nfsxprt; 131extern char *alt_spooldir; 132extern char *home_subdir; 133extern char *homedir(int, int); 134extern char *mailbox(int, char *); 135extern char *passwdfile; 136extern char *slinkname; 137extern gid_t hlfs_gid; 138extern u_int cache_interval; 139extern int noverify; 140extern int serverpid; 141extern int untab_index(char *username); 142extern am_nfs_fh *root_fhp; 143extern am_nfs_fh root; 144extern nfstime startup; 145extern uid2home_t *plt_search(u_int); 146extern username2uid_t *untab; /* user name table */ 147extern void fatal(char *); 148extern void plt_init(void); 149extern void hlfsd_init_filehandles(void); 150 151#if defined(DEBUG) || defined(DEBUG_PRINT) 152extern void plt_dump(uid2home_t *, pid_t); 153extern void plt_print(int); 154#endif /* defined(DEBUG) || defined(DEBUG_PRINT) */ 155 156#endif /* _HLFSD_HLFS_H */ 157