9ecd54f24f
different things from this commit:
+ More devices. Devices that were previously ignored are now present.
+ Faster device scanning. "There is no try, only Do" -- f_device_try()
is no longer the basis of device scanning as GEOM provides [nearly]
all devices (doesn't provide network devices).
+ More information available as non-root. Usually you have to be root
to do things like taste filesystems, and that limits the amount of
information available to non-root users; with GEOM, we see all even
running unprivileged as the brunt of information (except for so-
called ``dangerously dedicated'' file systems) is represented by the
`kern.geom.confxml' sysctl(8) MIB.
NB: Only really useful for external scripts that use the API and run as
non-root; where this code is used in bsdconfig(8) and bsdinstall(8)
you are running as root so can detect even ``dangerously dedicated''
file systems that are not present in GEOM; e.g., no PART class for
a DOS filesystem written directly to disk without partition table).
+ No more use of legacy tools such as diskinfo(8) to get disk capacity
or fdisk(8) to see partitions.
MFC after: 1 week
259 lines
7.7 KiB
Plaintext
259 lines
7.7 KiB
Plaintext
if [ ! "$_MEDIA_NFS_SUBR" ]; then _MEDIA_NFS_SUBR=1
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#
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# Copyright (c) 2012-2013 Devin Teske
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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############################################################ INCLUDES
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BSDCFG_SHARE="/usr/share/bsdconfig"
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. $BSDCFG_SHARE/common.subr || exit 1
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f_dprintf "%s: loading includes..." media/nfs.subr
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f_include $BSDCFG_SHARE/device.subr
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f_include $BSDCFG_SHARE/dialog.subr
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f_include $BSDCFG_SHARE/media/common.subr
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f_include $BSDCFG_SHARE/media/network.subr
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f_include $BSDCFG_SHARE/media/tcpip.subr
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f_include $BSDCFG_SHARE/struct.subr
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f_include $BSDCFG_SHARE/variable.subr
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BSDCFG_LIBE="/usr/libexec/bsdconfig"
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f_include_lang $BSDCFG_LIBE/include/messages.subr
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############################################################ GLOBALS
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NFS_MOUNTED=
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############################################################ FUNCTIONS
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# f_media_set_nfs
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#
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# Return success if we both found and set the media type to be an NFS server.
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# Variables from variable.subr that can be used to script user input:
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#
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# VAR_NFS_PATH
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# The NFS path specification (host:path) to use when mounting the
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# remote repository.
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# VAR_NAMESERVER [Optional]
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# Automatically populated from resolv.conf(5) but can be
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# overridden. If set, the host portion of VAR_NFS_PATH is
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# looked up using f_host_lookup() from `tcpip.subr'.
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#
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# Meanwhile, the following variables from variable.subr are set after
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# successful execution:
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#
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# VAR_NFS_HOST
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# The host portion of the NFS path specification, parsed from
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# VAR_NFS_PATH.
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#
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f_media_set_nfs()
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{
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local nfs
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f_media_close
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f_variable_get_value $VAR_NFS_PATH \
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"$msg_please_enter_the_full_nfs_file_specification"
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f_getvar $VAR_NFS_PATH nfs
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[ "$nfs" ] || return $FAILURE
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case "$nfs" in
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*:*) : valid NFS path ;;
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*)
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f_show_msg "$msg_invalid_nfs_path_specification"
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return $FAILURE
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esac
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f_struct_new DEVICE device_nfs
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device_nfs set name "$nfs"
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if ! f_struct device_network ||
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! f_dialog_yesno "$msg_youve_already_done_the_network_configuration"
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then
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f_struct device_network &&
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f_device_shutdown device_network
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f_device_select_tcp || return $FAILURE
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local dev if
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f_getvar $VAR_NETWORK_DEVICE if
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f_device_find -1 "$if" $DEVICE_TYPE_NETWORK dev
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f_struct_copy "$dev" device_network
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fi
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f_device_init device_network ||
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f_dprintf "%s: $msg_net_device_init_failed\n" f_media_set_nfs
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local hostname="${nfs%%:*}"
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if f_isset $VAR_NAMESERVER && ! {
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f_validate_ipaddr "$hostname" || f_validate_ipaddr6 "$hostname"
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}; then
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f_show_info "$msg_looking_up_host" "$hostname"
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f_dprintf "%s Looking up hostname, %s, using host(1)" \
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"f_media_set_nfs" "$hostname"
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if ! f_quietly f_host_lookup "$hostname"; then
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f_show_msg "$msg_cannot_resolve_hostname" "$hostname"
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f_struct device_network &&
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f_device_shutdown device_network
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f_struct_free device_network
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unset $VAR_NFS_PATH
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return $FAILURE
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fi
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f_dprintf "Found DNS entry for %s successfully." "$hostname"
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fi
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setvar $VAR_NFS_HOST "$hostname"
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device_nfs set type $DEVICE_TYPE_NFS
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device_nfs set init f_media_init_nfs
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device_nfs set get f_media_get_nfs
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device_nfs set shutdown f_media_shutdown_nfs
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device_nfs set private device_network # in name only (deref'd later)
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f_struct_copy device_nfs device_media
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f_struct_free device_nfs
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return $SUCCESS
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}
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# f_media_init_nfs $device
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#
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# Initializes the NFS media device. Returns success if able to mount the NFS
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# device using mount_nfs(1).
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#
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# The variables (from variable.subr) used to initialize the NFS mount are as
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# follows (all of which are configured manually/optionally from the options
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# menu):
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#
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# VAR_NFS_TCP [Optional]
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# If non-NULL, adds the "tcp" option via `-o' to mount_nfs(8).
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# VAR_NFS_V3 [Optional]
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# If non-NULL, adds the "nfsv3" option via `-o' to mount_nfs(8).
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# VAR_NFS_SECURE [Optional]
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# If non-NULL, adds the "-P" flag to mount_nfs(8).
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# VAR_SLOW_ETHER [Optional]
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# If non-NULL, adjusts the read/write size to avoid timeouts.
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#
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f_media_init_nfs()
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{
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local funcname=f_media_init_nfs
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local dev="$1" name err
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$dev get name name || return $FAILURE
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f_dprintf "Init routine called for NFS device. name=[%s]" \
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"$name"
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if [ "$NFS_MOUNTED" ]; then
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f_dprintf "NFS device already mounted."
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return $SUCCESS
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fi
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if ! f_device_init device_network; then
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f_dprintf "f_media_init_nfs: %s" "$msg_net_device_init_failed"
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return $FAILURE
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fi
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if [ ! -e "$MOUNTPOINT" ]; then
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f_eval_catch $funcname mkdir 'mkdir -p "%s"' "$MOUNTPOINT" ||
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return $FAILURE
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fi
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local cp tcp="" use3="" secure="" readsize=4096 writesize=4096
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f_getvar $VAR_NFS_TCP cp
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[ "$cp" = "YES" ] && tcp=1
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f_getvar $VAR_NFS_V3 cp
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[ "$cp" = "YES" ] && use3=1
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f_getvar $VAR_NFS_SECURE cp
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[ "$cp" = "YES" ] && secure=1
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f_getvar $VAR_SLOW_ETHER cp
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[ "$cp" = "YES" ] && readsize=1024 writesize=1024
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local options="rsize=$readsize,wsize=$writesize"
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[ "$use3" ] && options="$options,nfsv3"
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[ "$tcp" ] && options="$options,tcp"
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if ! f_eval_catch -dk err $funcname mount_nfs \
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'mount_nfs %s -o "%s" "%s" "%s"' \
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"${secure:+-P}" "$options" "$name" "$MOUNTPOINT"
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then
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err="${err#mount_nfs: }"
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f_show_msg "$msg_error_mounting_device" \
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"$name" "$MOUNTPOINT" "$err"
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f_struct device_network &&
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f_device_shutdown device_network
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return $FAILURE
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fi
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NFS_MOUNTED=1
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f_dprintf "Mounted NFS device %s onto %s" "$name" "$MOUNTPOINT"
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return $SUCCESS
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}
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# f_media_get_nfs $device $file [$probe_type]
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#
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# Returns data from $file on a mounted NFS device. Similar to cat(1). If
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# $probe_type is present and non-NULL, returns success if $file exists. If
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# $probe_type is equal to $PROBE_SIZE, prints the size of $file in bytes to
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# standard-out.
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#
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f_media_get_nfs()
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{
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local dev="$1" file="$2" probe_type="$3"
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local name
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$dev get name name
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f_dprintf "f_media_get_nfs: dev=[%s] file=[%s] probe_type=%s" \
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"$name" "$file" "$probe_type"
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f_media_generic_get "$MOUNTPOINT" "$file" "$probe_type"
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}
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# f_media_shutdown_nfs $device
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#
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# Shuts down the NFS device using umount(8). Return status should be ignored.
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#
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f_media_shutdown_nfs()
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{
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local funcname=f_media_shutdown_nfs
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local dev="$1" err
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[ "$NFS_MOUNTED" ] || return $FAILURE
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f_dprintf "Unmounting NFS partition on %s" "$MOUNTPOINT"
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if ! f_eval_catch -dk err $funcname umount \
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'umount -f "%s"' "$MOUNTPOINT"
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then
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err="${err#umount: }"; err="${err#*: }"
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f_show_msg "$msg_could_not_unmount_the_nfs_partition" \
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"$MOUNTPOINT" "$err"
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else
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NFS_MOUNTED=
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fi
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}
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############################################################ MAIN
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f_dprintf "%s: Successfully loaded." media/nfs.subr
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fi # ! $_MEDIA_NFS_SUBR
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