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Mod: helper script for network shares

Drutt

Active Member
#1
I have knocked up a script that attempts to simplify nfs / smb setup by allowing shares to be configured on the box, using folder names in a special "settings" directory to add and configure shares. It runs in the background, pinging the host(s) and mounting / unmounting the share when applicable. This should solve the problem of the Humax locking up if the computer goes to sleep. Its a bit rough and ready at the moment, and only tested on an HD. I'd appreciate any feedback / improvements / HDR testing, and then I can put it into a nice package :)

Put the script in a file called /mod/sbin/scanMounts, and create a startup script in /mod/etc/init.d to kick it off (with an "&" after to run in the background). When a new directory is created in smb or nfs, after a few seconds it should create template "options" within it for you to fill in.

Code:
#!/bin/sh

TryMount()
{
    type=$1
    name=$2

    host=$(ls "$name" | grep -e "^host" | cut -d'=' -f2 | sed -e 's/_/./g') #convert "_"s to "."s in host
    folder=$(ls "$name" | grep -e "^folder" | cut -d'=' -f2 | sed -e 's/_/\//g') #convert "_"s to "/"s in folder name

    ping -c 3 $host > /dev/null
    if [ $? != 0 ]; then                # mount or unmount?
        echo "$host not found.."
        # unmount if mounted
        if [ -d "/media/$name" ]; then
            echo "umount "/TEMP/$name""
            umount "/media/$name" -l
            rmdir "/media/$name"
        fi
    else
        if [ ! -d "/media/$name" ]; then
            echo "$host is on-line - attempting to mount"
            mkdir "/media/$name"        # and in My Videos?
            if [ $type = "smb" ]; then
                user=$(ls "$name" | grep -e "^user")        # keep the [user|password etc]=... for these as they go into mount int that format
                password=$(ls "$name" | grep -e "^password")
                domain=$(ls "$name" | grep -e "^domain")
                echo "mount -t cifs "//$host/$folder" "/media/$name" -o $user,$password,$domain,$workgroup"
                mount -t cifs "//$host/$folder" "/media/$name" -o $user,$password,$domain,$workgroup
            elif [ $type = "nfs" ]; then
                echo "mount -o soft "$host:/$folder" "/media/$name""
                mount -o soft "$host:/$folder" "/media/$name"
            fi

            if [ $? != 0 ]; then                # failed
                echo "Mount failed..."
                rmdir "/media/$name"
            fi
        fi
    fi
}

CreateExample()
{
    type=$1
    name=$2
    mkdir "$name/host=10_0_1_XX"
    mkdir "$name/folder=ShareFolder (use _ for slash)"
    if [ $type = "smb" ]; then
        mkdir "$name/user=User"
        mkdir "$name/password=Password"
        mkdir "$name/*workgroup=Workgroup (Optional - remove *)"
        mkdir "$name/*domain=Domain (Optional - remove *)"
    fi
}

exec >/tmp/scanmounts.log 2>&1

cd /mod/settings
# create some help 1st time
if [ ! -d smb ]; then
    mkdir -p "smb/*Create folder with mount name (opt+)"
    mkdir -p "smb/*Then edit options in folder"
fi
if [ ! -d nfs ]; then
    mkdir -p "nfs/*Create folder with mount name (opt+)"
    mkdir -p "nfs/*Then edit options in folder"
fi

# set up links to where we can get at the settings folder (a bit messy due to HDR / HD differences)
if [ -d "/media/My Video" ]; then                # HDR - add link to settings here as it can't get to /mod
    mkdir -p "/media/My Video/*modSettings/smb"
    mkdir -p "/media/My Video/*modSettings/nfs"
    mount /mod/settings/smb "/media/My Video/*modSettings/smb"
    mount /mod/settings/nfs "/media/My Video/*modSettings/nfs"
fi
if [ -d "/media/drive1/*ModSettings" ]; then    # HD with *modsettings on root- add link to settings here
    mkdir -p "/media/drive1/*ModSettings/smb"
    mkdir -p "/media/drive1/*ModSettings/nfs"
    mount /mod/settings/smb "/media/drive1/*ModSettings/smb"
    mount /mod/settings/nfs "/media/drive1/*ModSettings/nfs"
fi

# loop checking the mounts
while [ 1 ]
do
    for type in smb nfs; do
        if [ -d $type ]; then
            cd $type
            for mountname in [!*]*; do                                        #ignore "comments" starting with *
                if [ -d "$mountname" ]; then
                    echo "Checking $mountname"
                    if [ "$(ls -A "$mountname")" != "" ]; then
                        TryMount $type "$mountname"
                    else
                        CreateExample $type "$mountname"                    #Empty dir - create examples
                    fi
                fi
            done
            cd ..        # back up to settings
        fi
    done

    sleep 9
done
 
#3
Well done Steve.

Just need this integrated into the webif and do it all graphically :) - tongue in cheek, but great work none-the-less.

Haven't got round to this yet, but thinking it ought to be something I do.
 
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