1if [ ! "$_MEDIA_NFS_SUBR" ]; then _MEDIA_NFS_SUBR=1 2# 3# Copyright (c) 2012-2013 Devin Teske 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26# 27# $FreeBSD$ 28# 29############################################################ INCLUDES 30 31BSDCFG_SHARE="/usr/share/bsdconfig" 32. $BSDCFG_SHARE/common.subr || exit 1 33f_dprintf "%s: loading includes..." media/nfs.subr 34f_include $BSDCFG_SHARE/device.subr 35f_include $BSDCFG_SHARE/dialog.subr 36f_include $BSDCFG_SHARE/media/common.subr 37f_include $BSDCFG_SHARE/media/network.subr 38f_include $BSDCFG_SHARE/media/tcpip.subr 39f_include $BSDCFG_SHARE/struct.subr 40f_include $BSDCFG_SHARE/variable.subr 41 42BSDCFG_LIBE="/usr/libexec/bsdconfig" 43f_include_lang $BSDCFG_LIBE/include/messages.subr 44 45############################################################ GLOBALS 46 47NFS_MOUNTED= 48 49############################################################ FUNCTIONS 50 51# f_media_set_nfs 52# 53# Return success if we both found and set the media type to be an NFS server. 54# Variables from variable.subr that can be used to script user input: 55# 56# VAR_NFS_PATH 57# The NFS path specification (host:path) to use when mounting the 58# remote repository. 59# VAR_NAMESERVER [Optional] 60# Automatically populated from resolv.conf(5) but can be 61# overridden. If set, the host portion of VAR_NFS_PATH is 62# looked up using f_host_lookup() from `tcpip.subr'. 63# 64# Meanwhile, the following variables from variable.subr are set after 65# successful execution: 66# 67# VAR_NFS_HOST 68# The host portion of the NFS path specification, parsed from 69# VAR_NFS_PATH. 70# 71f_media_set_nfs() 72{ 73 local nfs 74 75 f_media_close 76 77 f_variable_get_value $VAR_NFS_PATH \ 78 "$msg_please_enter_the_full_nfs_file_specification" 79 f_getvar $VAR_NFS_PATH nfs 80 [ "$nfs" ] || return $FAILURE 81 82 case "$nfs" in 83 *:*) : valid NFS path ;; 84 *) 85 f_show_msg "$msg_invalid_nfs_path_specification" 86 return $FAILURE 87 esac 88 89 f_struct_new DEVICE device_nfs 90 device_nfs set name "$nfs" 91 92 if ! f_struct device_network || 93 ! f_dialog_yesno "$msg_youve_already_done_the_network_configuration" 94 then 95 f_struct device_network && 96 f_device_shutdown network 97 f_device_select_tcp || return $FAILURE 98 local dev 99 f_getvar $VAR_NETWORK_DEVICE dev 100 f_struct_copy "device_$dev" device_network 101 fi 102 f_device_init network || 103 f_dprintf "%s: $msg_net_device_init_failed\n" f_media_set_nfs 104 105 local hostname="${nfs%%:*}" 106 if f_isset $VAR_NAMESERVER && ! { 107 f_validate_ipaddr "$hostname" || f_validate_ipaddr6 "$hostname" 108 }; then 109 f_show_info "$msg_looking_up_host" "$hostname" 110 f_dprintf "%s Looking up hostname, %s, using host(1)" \ 111 "f_media_set_nfs" "$hostname" 112 if ! f_quietly f_host_lookup "$hostname"; then 113 f_show_msg "$msg_cannot_resolve_hostname" "$hostname" 114 f_struct device_network && 115 f_device_shutdown network 116 f_struct_free device_network 117 unset $VAR_NFS_PATH 118 return $FAILURE 119 fi 120 f_dprintf "Found DNS entry for %s successfully." "$hostname" 121 fi 122 123 setvar $VAR_NFS_HOST "$hostname" 124 125 device_nfs set type $DEVICE_TYPE_NFS 126 device_nfs set init f_media_init_nfs 127 device_nfs set get f_media_get_nfs 128 device_nfs set shutdown f_media_shutdown_nfs 129 device_nfs set private device_network # in name only (deref'd later) 130 131 f_struct_copy device_nfs device_media 132 f_struct_free device_nfs 133 134 return $SUCCESS 135} 136 137# f_media_init_nfs $device 138# 139# Initializes the NFS media device. Returns success if able to mount the NFS 140# device using mount_nfs(1). 141# 142# The variables (from variable.subr) used to initialize the NFS mount are as 143# follows (all of which are configured manually/optionally from the options 144# menu): 145# 146# VAR_NFS_TCP [Optional] 147# If non-NULL, adds the "tcp" option via `-o' to mount_nfs(8). 148# VAR_NFS_V3 [Optional] 149# If non-NULL, adds the "nfsv3" option via `-o' to mount_nfs(8). 150# VAR_NFS_SECURE [Optional] 151# If non-NULL, adds the "-P" flag to mount_nfs(8). 152# VAR_SLOW_ETHER [Optional] 153# If non-NULL, adjusts the read/write size to avoid timeouts. 154# 155f_media_init_nfs() 156{ 157 local funcname=f_media_init_nfs 158 local dev="$1" name err 159 160 device_$dev get name name || return $FAILURE 161 f_dprintf "Init routine called for NFS device. name=[%s]" \ 162 "$name" 163 164 if [ "$NFS_MOUNTED" ]; then 165 f_dprintf "NFS device already mounted." 166 return $SUCCESS 167 fi 168 169 if ! f_device_init network; then 170 f_dprintf "f_media_init_nfs: %s" "$msg_net_device_init_failed" 171 return $FAILURE 172 fi 173 174 if [ ! -e "$MOUNTPOINT" ]; then 175 f_eval_catch $funcname mkdir 'mkdir -p "%s"' "$MOUNTPOINT" || 176 return $FAILURE 177 fi 178 179 local cp tcp="" use3="" secure="" readsize=4096 writesize=4096 180 f_getvar $VAR_NFS_TCP cp 181 [ "$cp" = "YES" ] && tcp=1 182 f_getvar $VAR_NFS_V3 cp 183 [ "$cp" = "YES" ] && use3=1 184 f_getvar $VAR_NFS_SECURE cp 185 [ "$cp" = "YES" ] && secure=1 186 f_getvar $VAR_SLOW_ETHER cp 187 [ "$cp" = "YES" ] && readsize=1024 writesize=1024 188 189 local options="rsize=$readsize,wsize=$writesize" 190 [ "$use3" ] && options="$options,nfsv3" 191 [ "$tcp" ] && options="$options,tcp" 192 193 if ! f_eval_catch -dk err $funcname mount_nfs \ 194 'mount_nfs %s -o "%s" "%s" "%s"' \ 195 "${secure:+-P}" "$options" "$name" "$MOUNTPOINT" 196 then 197 err="${err#mount_nfs: }" 198 f_show_msg "$msg_error_mounting_device" \ 199 "$name" "$MOUNTPOINT" "$err" 200 f_struct device_network && 201 f_device_shutdown network 202 return $FAILURE 203 fi 204 NFS_MOUNTED=1 205 206 f_dprintf "Mounted NFS device %s onto %s" "$name" "$MOUNTPOINT" 207 208 return $SUCCESS 209} 210 211# f_media_get_nfs $device $file [$probe_type] 212# 213# Returns data from $file on a mounted NFS device. Similar to cat(1). If 214# $probe_type is present and non-NULL, returns success if $file exists. If 215# $probe_type is equal to $PROBE_SIZE, prints the size of $file in bytes to 216# standard-out. 217# 218f_media_get_nfs() 219{ 220 local dev="$1" file="$2" probe_type="$3" 221 222 f_dprintf "f_media_get_nfs: dev=[%s] file=[%s] probe_type=%s" \ 223 "$dev" "$file" "$probe_type" 224 225 f_media_generic_get "$MOUNTPOINT" "$file" "$probe_type" 226} 227 228# f_media_shutdown_nfs $device 229# 230# Shuts down the NFS device using umount(8). Return status should be ignored. 231# 232f_media_shutdown_nfs() 233{ 234 local funcname=f_media_shutdown_nfs 235 local dev="$1" err 236 237 [ "$NFS_MOUNTED" ] || return $FAILURE 238 239 f_dprintf "Unmounting NFS partition on %s" "$MOUNTPOINT" 240 if ! f_eval_catch -dk err $funcname umount \ 241 'umount -f "%s"' "$MOUNTPOINT" 242 then 243 err="${err#umount: }"; err="${err#*: }" 244 f_show_msg "$msg_could_not_unmount_the_nfs_partition" \ 245 "$MOUNTPOINT" "$err" 246 else 247 NFS_MOUNTED= 248 fi 249} 250 251############################################################ MAIN 252 253f_dprintf "%s: Successfully loaded." media/nfs.subr 254 255fi # ! $_MEDIA_NFS_SUBR 256