msnfs41client.bash - simple Cygwin frontent for the msnfsv41 NFSv4.1 filesystem driver
Posted by Anonymous on Fri 15th Sep 2023 14:47
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#!/bin/bash

#
# msnfs41client.bash - simple Cygwin frontent for the msnfsv41
# NFSv4.1 filesystem driver
#

#
# Written by Roland Mainz <roland.mainz@nrubsig.org>
#

#
# Examples:
#
# 2. Mount for all users:
# (requires PsExec from https://download.sysinternals.com/files/PSTools.zip
# in /home/roland_mainz/work/win_pstools/)
# Shell1: cd /cygdrive/c/Users/roland_mainz/Downloads/ms-nfs41-client-x64/ms-nfs41-client-x64 && /home/roland_mainz/work/win_pstools/PsExec -s -w $(cygpath -w "$PWD") $(cygpath -w /usr/bin/bash) "$PWD/../msnfs41client.bash" run_deamon
# Shell2: (cd /cygdrive/c/Users/roland_mainz/Downloads/ms-nfs41-client-x64/ms-nfs41-client-x64 && /home/roland_mainz/work/win_pstools/PsExec -s -w $(cygpath -w "$PWD") $(cygpath -w /usr/bin/bash) "$PWD/../msnfs41client.bash" mount_homedir)
#

function nfsclient_install
{
        set -o nounset
        set -o xtrace
        set -o errexit

        #
        # Test whether we have the Windows permissions to install DLLs
        # and the kernel module
        #
        # Usually Windows Adminstrator rights are indicated by the
        # membership in group "544(Administratoren)" (Cygwin maps
        # "SID S-1-5-32-544" to GID 544)
        #
        if ! [[ "$(id -G)" =~ (^|[[:space:]]+)544([[:space:]]+|$) ]] ; then
                printf $"%s: Install requires Windows Adminstator permissions.\n" "$0"
                return 1
        fi

        # make sure all binaries are executable, Windows cmd does
        # not care, but Cygwin&bash do.
        # If *.ddl are not executable nfs*.exe fail with 0xc0000022
        chmod a+x *.exe *.dll

        if false ; then
                # install.bat needs PATH to include $PWD
                PATH="$PWD:$PATH" cmd /c install.bat
        else
                nfs_install
                rundll32 setupapi.dll,InstallHinfSection DefaultInstall 132 ./nfs41rdr.inf
        fi

        cp etc_netconfig /cygdrive/c/etc/netconfig
        cp ms-nfs41-idmap.conf /cygdrive/c/etc/.

        bcdedit /set testsigning on
        regtool -s set '/HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Tcpip/Parameters/Domain' 'GLOBAL.LOC'

        sc query Dfsc
        sc stop Dfsc || true
        sc config Dfsc start=disabled

        sc query nfs41_driver
        domainname

        # check whether the driver really has been installed
        md5sum \
                "$PWD/nfs41_driver.sys" \
                /cygdrive/c/Windows/System32/drivers/nfs41_driver.sys

        return 0
}

function nfsclient_rundeamon
{
        set -o xtrace
        set -o nounset

        nfsd_debug -d 2 --noldap --gid 1616 --uid 1616
        return $?
}

function nfsclient_mount_homedir
{
        set -o xtrace
        set -o nounset
        set -o errexit

        nfs_mount -p -o sec=sys H 'derfwpc5131:/export/home/rmainz'
        mkdir -p /home/rmainz
        mount -o bind,posix=1 /cygdrive/h /home/rmainz
        return $?
}

function nfsclient_umount_homedir
{
        set -o xtrace
        set -o nounset
        typeset -i res

        nfs_mount -d H
        (( res=$? ))

        if (( res == 0 )) ; then
                # remove bind mount
                umount /home/rmainz
        fi

        return $res
}

function main
{
        typeset cmd="$1"

        # "$PATH:/usr/bin:/bin" is used for PsExec where $PATH might be empty
        export PATH="$PWD:$PATH:/usr/bin:/bin"

        if [[ "$cmd" != 'install' ]] ; then
                if ! which 'nfsd.exe' >/dev/null 2>&1 ; then
                        printf $"%s: nfsd not found in %q\n" "$0" "$PWD" 1>&2
                        return 1
                fi
                if ! which 'nfs_mount.exe' >/dev/null 2>&1 ; then
                        printf $"%s: nfs_mount not found in %q\n" "$0" "$PWD" 1>&2
                        return 1
                fi
        fi

        case "$cmd" in
                'install')
                        nfsclient_install
                        return $?
                        ;;
                'run_deamon' | 'run_daemon')
                        nfsclient_rundeamon
                        return $?
                        ;;
                'mount_homedir')
                        nfsclient_mount_homedir
                        return $?
                        ;;
                'umount_homedir')
                        nfsclient_umount_homedir
                        return $?
                        ;;
                *)
                        printf $"%s: Unknown cmd %q\n" "$0" "$cmd" 1>&2
                        return 1
                        ;;
        esac
        return 1
}

main "$@"
exit $?

# EOF.