| 1 | /* |
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| 2 | * $Id: attach.h,v 1.21 1996-12-11 21:59:56 ghudson Exp $ |
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| 3 | * |
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| 4 | * Copyright (c) 1988,1991 by the Massachusetts Institute of Technology. |
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| 5 | * |
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| 6 | * For redistribution rights, see "mit-copyright.h" |
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| 7 | */ |
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| 8 | |
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| 9 | #include "config.h" |
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| 10 | |
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| 11 | #include <stdio.h> |
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| 12 | #include <ctype.h> |
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| 13 | #include <errno.h> |
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| 14 | #ifdef _AIX |
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| 15 | #undef geterrno |
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| 16 | #endif |
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| 17 | #include <netdb.h> |
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| 18 | #include <string.h> |
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| 19 | |
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| 20 | #include <sys/types.h> |
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| 21 | #include <sys/file.h> |
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| 22 | #include <sys/param.h> |
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| 23 | #include <sys/socket.h> |
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| 24 | #include <sys/time.h> |
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| 25 | |
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| 26 | #include <netinet/in.h> |
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| 27 | |
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| 28 | #ifdef NFS |
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| 29 | #include <rpc/rpc.h> |
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| 30 | #ifndef i386 |
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| 31 | #ifndef sgi |
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| 32 | #include <nfs/nfs.h> |
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| 33 | #else |
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| 34 | #include <sys/fs/nfs.h> |
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| 35 | #endif /* sgi */ |
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| 36 | #else |
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| 37 | #include <rpc/nfs.h> |
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| 38 | #endif |
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| 39 | #ifdef NeXT |
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| 40 | #include <nfs/nfs_mount.h> /* Newer versions of NFS (?) */ |
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| 41 | #endif /* NeXT */ |
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| 42 | #ifdef _AUX_SOURCE |
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| 43 | #include <nfs/mount.h> |
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| 44 | #endif |
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| 45 | #ifdef SOLARIS |
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| 46 | #include <nfs/mount.h> |
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| 47 | #include <sys/fs/ufs_mount.h> |
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| 48 | #endif |
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| 49 | #ifdef sgi |
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| 50 | #include <sys/fs/nfs_clnt.h> |
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| 51 | #include <sys/mount.h> |
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| 52 | #endif |
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| 53 | #endif /* NFS */ |
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| 54 | |
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| 55 | #ifdef ultrix |
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| 56 | #include <ufs/ufs_mount.h> |
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| 57 | #ifdef NFS |
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| 58 | #include <nfs/nfs_gfs.h> |
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| 59 | #endif /* NFS */ |
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| 60 | #define KERNEL |
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| 61 | /* AACK! this @#OU@#)($(#) file defines and initializes an array which |
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| 62 | loses on multiple includes, but it's surrounded by #ifdef KERNEL. */ |
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| 63 | #include <sys/fs_types.h> |
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| 64 | #undef KERNEL |
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| 65 | #endif /* ultrix */ |
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| 66 | |
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| 67 | #include <sys/mount.h> |
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| 68 | #ifdef _AIX |
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| 69 | #include <sys/vmount.h> |
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| 70 | #define M_RDONLY MNT_READONLY |
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| 71 | #endif |
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| 72 | |
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| 73 | #if defined(_AUX_SOURCE) || defined(NeXT) || defined(_AIX) || defined(sgi) |
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| 74 | #define vfork fork |
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| 75 | #endif |
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| 76 | |
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| 77 | /* |
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| 78 | * If MOUNT_CMD or UMOUNT_CMD are defined, it will run the program |
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| 79 | * specified rather than trying to use in-line code. |
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| 80 | */ |
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| 81 | #if defined(_IBMR2) |
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| 82 | #define MOUNT_CMD "/etc/mount" |
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| 83 | #endif |
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| 84 | #if defined(SOLARIS) |
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| 85 | #define MOUNT_CMD "/etc/fs/nfs/mount" |
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| 86 | #define UMOUNT_CMD "/usr/sbin/umount" |
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| 87 | #endif |
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| 88 | #if defined(sgi) |
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| 89 | #define MOUNT_CMD "/sbin/mount" |
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| 90 | #define UMOUNT_CMD "/sbin/umount" |
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| 91 | #endif |
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| 92 | |
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| 93 | #define MAXOWNERS 64 |
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| 94 | #define MAXHOSTS 64 |
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| 95 | |
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| 96 | /* |
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| 97 | * We don't really want to deal with malloc'ing and free'ing stuff |
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| 98 | * in this structure... |
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| 99 | */ |
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| 100 | |
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| 101 | struct _attachtab { |
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| 102 | struct _attachtab *next, *prev; |
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| 103 | char version[3]; |
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| 104 | char explicit; |
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| 105 | char status; |
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| 106 | char mode; |
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| 107 | struct _fstypes *fs; |
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| 108 | struct in_addr hostaddr[MAXHOSTS]; |
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| 109 | int rmdir; |
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| 110 | int drivenum; |
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| 111 | int flags; |
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| 112 | int nowners; |
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| 113 | uid_t owners[MAXOWNERS]; |
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| 114 | char hesiodname[BUFSIZ]; |
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| 115 | char host[BUFSIZ]; |
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| 116 | char hostdir[MAXPATHLEN]; |
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| 117 | char mntpt[MAXPATHLEN]; |
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| 118 | }; |
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| 119 | |
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| 120 | /* |
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| 121 | * Attach flags defines |
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| 122 | * |
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| 123 | * FLAG_NOSETUID --- this filesystem was mounted nosetuid (no meaning |
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| 124 | * for afs filesystems) |
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| 125 | * FLAG_LOCKED --- this filesystem is passed over by detach -a, and |
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| 126 | * you must be the owner of the filesystem to detach it. |
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| 127 | * FLAG_ANYONE --- anyone can detach this filesystem (not yet implemented) |
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| 128 | * FLAG_PERMANENT --- when this filesytem is detached, don't do |
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| 129 | * actually unmount it; just deauthenticate, if necessary. attach |
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| 130 | * sets this flag if it finds the filesystem already mounted but |
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| 131 | * not in attachtab. |
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| 132 | */ |
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| 133 | #define FLAG_NOSETUID 1 |
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| 134 | #define FLAG_LOCKED 2 |
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| 135 | #define FLAG_ANYONE 4 |
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| 136 | #define FLAG_PERMANENT 8 |
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| 137 | |
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| 138 | #define ATTACH_VERSION "A1" |
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| 139 | |
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| 140 | #define ATTACHTABMODE 644 |
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| 141 | |
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| 142 | #define STATUS_ATTACHED '+' |
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| 143 | #define STATUS_ATTACHING '*' |
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| 144 | #define STATUS_DETACHING '-' |
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| 145 | |
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| 146 | #define TYPE_NFS 001 |
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| 147 | #define TYPE_RVD 002 |
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| 148 | #define TYPE_UFS 004 |
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| 149 | #define TYPE_ERR 010 |
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| 150 | #define TYPE_AFS 020 |
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| 151 | #define TYPE_MUL 040 |
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| 152 | #define ALL_TYPES 067 |
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| 153 | |
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| 154 | /* |
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| 155 | * Attach configuration defines |
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| 156 | */ |
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| 157 | #define MAXFILTAB 100 |
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| 158 | #define MAXTRUIDTAB 100 |
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| 159 | |
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| 160 | /* |
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| 161 | * Type table |
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| 162 | */ |
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| 163 | |
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| 164 | struct _fstypes { |
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| 165 | char *name; |
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| 166 | int type; |
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| 167 | int mount_type; |
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| 168 | int flags; |
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| 169 | char *good_flags; |
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| 170 | int (*attach)(); |
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| 171 | int (*detach)(); |
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| 172 | char ** (*explicit)(); |
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| 173 | int (*flush)(); |
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| 174 | }; |
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| 175 | |
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| 176 | /* |
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| 177 | * Flags for _fstypes.flags |
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| 178 | */ |
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| 179 | #define AT_FS_MNTPT 1 |
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| 180 | #define AT_FS_REMOTE 2 |
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| 181 | #define AT_FS_PARENTMNTPT 4 |
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| 182 | #define AT_FS_MNTPT_CANON 8 |
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| 183 | |
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| 184 | extern struct _fstypes fstypes[]; |
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| 185 | |
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| 186 | /* |
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| 187 | * Mount options |
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| 188 | */ |
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| 189 | #ifndef M_RDONLY |
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| 190 | #define M_RDONLY 0x01 /* mount fs read-only */ |
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| 191 | #endif |
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| 192 | #ifndef M_NOSUID |
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| 193 | #define M_NOSUID 0x02 /* mount fs without setuid perms */ |
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| 194 | #endif |
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| 195 | |
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| 196 | /* |
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| 197 | * Mount option table |
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| 198 | */ |
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| 199 | struct mntopts { |
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| 200 | int type; /* File system type */ |
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| 201 | int flags; /* Mount flags */ |
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| 202 | #ifdef NFS |
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| 203 | int nfs_port; /* Valid only for NFS, port for rpc.mountd */ |
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| 204 | #endif |
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| 205 | union tsa { |
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| 206 | #ifdef UFS |
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| 207 | struct ufs_args ufs; |
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| 208 | #endif |
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| 209 | #ifdef NFS |
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| 210 | struct nfs_args nfs; |
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| 211 | #endif |
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| 212 | } tsa; |
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| 213 | }; |
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| 214 | |
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| 215 | /* |
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| 216 | * Command option lists |
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| 217 | */ |
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| 218 | |
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| 219 | struct command_list { |
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| 220 | char *large; |
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| 221 | char *small; |
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| 222 | }; |
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| 223 | |
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| 224 | /* |
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| 225 | * RVD defines |
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| 226 | */ |
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| 227 | |
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| 228 | #define RVD_ATTACH_TIMEOUT 30 |
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| 229 | |
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| 230 | /* |
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| 231 | * RPC caching |
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| 232 | */ |
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| 233 | |
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| 234 | #define RPC_MAXCACHE 10 |
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| 235 | |
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| 236 | struct cache_ent { |
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| 237 | struct in_addr addr; |
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| 238 | CLIENT *handle; |
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| 239 | struct sockaddr_in sin; |
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| 240 | int fd; |
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| 241 | int error; |
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| 242 | }; |
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| 243 | |
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| 244 | /* |
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| 245 | * Calls to RPC.MOUNTD |
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| 246 | */ |
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| 247 | |
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| 248 | #ifndef MOUNTPROC_KUIDMAP |
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| 249 | #define MOUNTPROC_KUIDMAP 7 |
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| 250 | #define MOUNTPROC_KUIDUMAP 8 |
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| 251 | #define MOUNTPROC_KUIDPURGE 9 |
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| 252 | #define MOUNTPROC_KUIDUPURGE 10 |
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| 253 | #endif |
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| 254 | |
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| 255 | /* |
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| 256 | * Command names |
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| 257 | */ |
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| 258 | |
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| 259 | #define ATTACH_CMD "attach" |
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| 260 | #define DETACH_CMD "detach" |
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| 261 | #define NFSID_CMD "nfsid" |
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| 262 | #define FSID_CMD "fsid" |
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| 263 | #ifdef ZEPHYR |
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| 264 | #define ZINIT_CMD "zinit" |
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| 265 | #endif /* ZEPHYR */ |
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| 266 | |
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| 267 | /* |
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| 268 | * Generic defines |
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| 269 | */ |
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| 270 | |
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| 271 | #define SUCCESS 0 |
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| 272 | #define FAILURE 1 |
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| 273 | |
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| 274 | /* |
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| 275 | * Error status defininitions |
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| 276 | */ |
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| 277 | |
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| 278 | #define ERR_NONE 0 /* No error */ |
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| 279 | #define ERR_BADARGS 1 /* Bad arguments */ |
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| 280 | #define ERR_SOMETHING 2 /* Something wrong - > 1 args */ |
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| 281 | #define ERR_FATAL 3 /* Internal failure */ |
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| 282 | #define ERR_INTERRUPT 4 /* Program externally aborted */ |
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| 283 | #define ERR_BADCONF 5 /* Bad configuration file */ |
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| 284 | #define ERR_BADFSDSC 6 /* Bad filesystem description */ |
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| 285 | #define ERR_BADFSFLAG 7 /* Bad filsys flag */ |
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| 286 | |
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| 287 | #define ERR_KERBEROS 10 /* Kerberos failure */ |
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| 288 | #define ERR_HOST 11 /* General host communication failure */ |
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| 289 | #define ERR_AUTHFAIL 12 /* Authentication failure */ |
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| 290 | #define ERR_NOPORTS 13 /* Out of reserved ports */ |
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| 291 | |
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| 292 | #define ERR_NFSIDNOTATTACHED 20 /* Filesystem with -f not attached */ |
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| 293 | #define ERR_NFSIDBADHOST 21 /* Can't resolve hostname */ |
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| 294 | #define ERR_NFSIDPERM 22 /* unauthorized nfsid -p */ |
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| 295 | |
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| 296 | #define ERR_ATTACHBADFILSYS 20 /* Bad filesystem name */ |
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| 297 | #define ERR_ATTACHINUSE 21 /* Filesystem in use by another proc */ |
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| 298 | #define ERR_ATTACHNEEDPW 22 /* RVD spinup needs a password */ |
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| 299 | #define ERR_ATTACHFSCK 23 /* FSCK returned error on RVD */ |
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| 300 | #define ERR_ATTACHNOTALLOWED 24 /* User not allowed to do operation */ |
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| 301 | #define ERR_ATTACHBADMNTPT 25 /* User not allowed to mount a */ |
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| 302 | /* filesystem here */ |
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| 303 | #define ERR_ATTACHNOFILSYS 26 /* The remote filesystem doesn't exist */ |
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| 304 | #define ERR_ATTACHDIRINUSE 27 /* Some other filesystem is using the */ |
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| 305 | /* mountpoint directory */ |
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| 306 | |
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| 307 | #define ERR_DETACHNOTATTACHED 20 /* Filesystem not attached */ |
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| 308 | #define ERR_DETACHINUSE 21 /* Filesystem in use by another proc */ |
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| 309 | #define ERR_DETACHNOTALLOWED 22 /* User not allowed to do operations */ |
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| 310 | |
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| 311 | #define ERR_ZINITZLOSING 20 /* Random zephyr lossage */ |
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| 312 | |
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| 313 | /* |
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| 314 | * Zephyr definitions |
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| 315 | */ |
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| 316 | |
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| 317 | #ifdef ZEPHYR |
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| 318 | #define ZEPHYR_CLASS "filsrv" |
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| 319 | #define ZEPHYR_MAXSUBS 100 /* 50 filesystems... */ |
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| 320 | #define ZEPHYR_TIMEOUT 60 /* 1 minute timeout */ |
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| 321 | #endif /* ZEPHYR */ |
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| 322 | |
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| 323 | /* AFS */ |
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| 324 | #ifdef AFS |
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| 325 | #ifdef __STDC__ |
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| 326 | extern int afs_auth(const char *, const char *), afs_auth_to_cell(const char *); |
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| 327 | extern int afs_zinit(const char *, const char *); |
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| 328 | #else |
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| 329 | extern int afs_auth(), afs_auth_to_cell(); |
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| 330 | #endif |
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| 331 | #endif |
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| 332 | |
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| 333 | /* |
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| 334 | * Externals |
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| 335 | */ |
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| 336 | |
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| 337 | extern char *errstr(); /* convert errno to string */ |
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| 338 | |
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| 339 | AUTH *spoofunix_create_default(); |
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| 340 | CLIENT *rpc_create(); |
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| 341 | extern int errno; |
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| 342 | extern unsigned long rvderrno; |
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| 343 | extern char *sys_errlist[]; |
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| 344 | extern char **build_hesiod_line(), **conf_filsys_resolve(); |
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| 345 | extern struct _fstypes *get_fs(); |
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| 346 | extern char *filsys_options(); |
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| 347 | extern char *stropt(), *struid(), *path_canon(); |
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| 348 | extern struct _attachtab *attachtab_lookup(), *attachtab_lookup_mntpt(); |
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| 349 | |
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| 350 | extern int verbose, debug_flag, map_anyway, do_nfsid, print_path, explicit; |
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| 351 | extern int owner_check, owner_list, override, keep_mount; |
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| 352 | extern int error_status, force, lock_filesystem, lookup, euid, clean_detach; |
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| 353 | extern int exp_mntpt, exp_allow; |
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| 354 | #ifdef ZEPHYR |
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| 355 | extern int use_zephyr; |
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| 356 | #endif /* ZEPHYR */ |
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| 357 | extern char override_mode, *mount_options, *filsys_type; |
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| 358 | extern char *mntpt; |
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| 359 | extern int override_suid, default_suid, skip_fsck, nfs_root_hack; |
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| 360 | extern char *spoofhost, *attachtab_fn, *mtab_fn, *nfs_mount_dir; |
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| 361 | #ifdef AFS |
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| 362 | extern char *aklog_fn, *afs_mount_dir; |
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| 363 | #endif |
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| 364 | extern char *fsck_fn; |
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| 365 | |
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| 366 | extern char *ownerlist(); |
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| 367 | extern void add_an_owner(); |
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| 368 | extern int is_an_owner(), real_uid, effective_uid, owner_uid; |
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| 369 | |
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| 370 | extern char internal_getopt(); |
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| 371 | extern void mark_in_use(), add_options(), check_root_privs(); |
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| 372 | |
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| 373 | extern char exp_hesline[BUFSIZ]; /* Place to store explicit */ |
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| 374 | extern char *exp_hesptr[2]; /* ``hesiod'' entry */ |
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| 375 | extern char *abort_msg; |
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| 376 | |
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| 377 | /* High C 2.1 can optimize small bcopys such as are used to copy 4 |
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| 378 | byte IP addrs */ |
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| 379 | #ifdef __HIGHC__ |
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| 380 | #define bcopy(src, dest, cnt) memcpy(dest, src, cnt) |
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| 381 | extern char *memcpy(); |
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| 382 | #endif |
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| 383 | #ifdef __STDC__ |
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| 384 | #ifdef NFS |
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| 385 | extern int nfsid(const char *, struct in_addr, int, int, const char *, int, int); |
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| 386 | extern AUTH *spoofunix_create_default(char *, int); |
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| 387 | #endif |
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| 388 | extern int attach(const char *), detach(const char *); |
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| 389 | extern void detach_all(void), detach_host(const char *); |
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| 390 | extern int read_config_file(const char *); |
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| 391 | extern int parse_username(const char *); |
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| 392 | extern int trusted_user(int); |
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| 393 | extern void lock_attachtab(void), unlock_attachtab(void); |
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| 394 | extern void lint_attachtab(void), get_attachtab(void), free_attachtab(void); |
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| 395 | #ifdef ZEPHYR |
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| 396 | extern int zephyr_sub(int), zephyr_unsub(int); |
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| 397 | extern void zephyr_addsub(const char *); |
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| 398 | #endif |
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| 399 | #else |
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| 400 | #ifdef NFS |
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| 401 | extern int nfsid(); |
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| 402 | extern AUTH *spoofunix_create_default(); |
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| 403 | #endif |
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| 404 | extern int attach(), detach(); |
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| 405 | extern void detach_all(), detach_host(); |
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| 406 | extern int read_config_file(), parse_username(), trusted_user(); |
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| 407 | extern void lock_attachtab(), unlock_attachtab(); |
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| 408 | extern void get_attachtab(), free_attachtab(); |
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| 409 | #ifdef ZEPHYR |
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| 410 | extern int zephyr_sub(), zephyr_unsub(); |
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| 411 | extern void zephyr_addsub(); |
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| 412 | #endif |
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| 413 | #endif |
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| 414 | |
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| 415 | extern char *progname; |
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| 416 | |
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| 417 | /* |
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| 418 | * Instead of ifdef-ing all const declarations, make one global definition. |
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| 419 | * The AIX PS/2 compiler understands "const", but does not define __STDC__. |
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| 420 | */ |
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| 421 | #if !defined(__STDC__) && !(defined(AIX) && defined(i386)) |
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| 422 | #define const |
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| 423 | #endif |
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