Trabalhando na solução com hubs

opt/le-multiterminal/discover-devices

+#!/bin/bash
+
+# Copyright (C) 2004-2007 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+# This script discover evdev mice and keyboards and also discovers video cards
+# on the machine.
+# For input devices, it uses /proc/bus/input/devices
+# For video cardes, it uses the "discover" package.
+
+# TODO: find a decent way to do all this.
+
+DISCOVER=/sbin/discover
+
+# This function prints the physical addresses of the mice found
+function discover_input () {
+
+    KEYBOARDS=($(hal-find-by-capability --capability input.keyboard))
+    MICE=($(hal-find-by-capability --capability input.mouse))
+
+    for i in ${KEYBOARDS[@]}; do
+	EVDEV_NODE=$(hal-device $i | grep linux.device_file | cut -d"'" -f2)
+        echo -e "kbd\t${i}"
+	echo -e "kevdev\t${EVDEV_NODE}"
+    done
+    for i in ${MICE[@]}; do
+	EVDEV_NODE=$(hal-device $i | grep linux.device_file | cut -d"'" -f2)
+        echo -e "mouse\t${i}"
+	echo -e "mevdev\t${EVDEV_NODE}"
+    done
+}
+
+# Prints bus address and drivers of the video cards.
+function video_cards () {
+
+    # calling discover is way toooooo slow!
+    OUTPUT=$($DISCOVER -t display --vendor-id --model-id)
+    VENDOR_IDS=($(echo "$OUTPUT" | cut -d' ' -f1))
+    MODEL_IDS=($( echo "$OUTPUT" | cut -d' ' -f2))
+    # There can be empty lines on "drivers"
+    DRIVERS=($($DISCOVER -t display --data-path=xfree86/server/device/driver \
+	       | sed 's/^$/vesa/g'))
+
+    for (( i = 0; i < ${#VENDOR_IDS[@]}; i++)); do
+        # If there are multiple cards with the same IDs, lspci will print
+	# multiple lines
+
+	# See how many times we already used these IDs:
+	TIMES_USED=0
+	for (( j=0; j < i; j++)); do
+	    if ( [ "${VENDOR_IDS[j]}" = "${VENDOR_IDS[i]}" ] &&
+	         [ "${MODEL_IDS[j]}"  = "${MODEL_IDS[i]}"  ] ); then
+		 TIMES_USED=$((TIMES_USED+1))
+	    fi
+	done
+
+	BUS_IDS[i]=$(lspci -d ${VENDOR_IDS[i]}:${MODEL_IDS[i]} | 
+		     cut -d' ' -f1 | head -n $((TIMES_USED+1)) | tail -n 1)
+    done
+
+    for (( i=0 ; i < ${#BUS_IDS[@]}; i++ )) ; do
+        # busid from lspci is in format 00:00.00
+        # below we convert 0:00.00 in 00:00:00 and then split in 00, 00 and 00
+	NUMS=(`echo ${BUS_IDS[$i]} | sed -e "s/\./\:/g" | \
+		awk 'BEGIN {FS=":"}{print toupper($1), toupper($2), toupper($3)}'`)
+	# now, we convert the numbers from hexa to decimal base
+	for (( j=0; j<${#NUMS[@]}; j++ ));  do
+		NUMS[$j]=$(printf "%d" 0x${NUMS[$j]})
+	done
+	# putting it all back together
+	BUS_ID="${NUMS[0]}:${NUMS[1]}:${NUMS[2]}"
+        echo -e "bus\t${BUS_ID}"
+
+    done
+    
+    for i in ${DRIVERS[@]}; do
+        echo -e "driver\t$i"
+    done
+} # video_cards
+
+# ******************** MAIN *************************
+
+if [[ "$#" = 0 ]]
+then
+    ARG=all  
+else
+    ARG=$1
+fi
+
+
+case $ARG in
+    all)
+        CARDS=`video_cards`
+        INPUT=`discover_input`
+        echo "$INPUT" | grep mouse
+        echo "$INPUT" | grep mevdev
+        echo "$INPUT" | grep kbd
+        echo "$INPUT" | grep kevdev
+        echo "$CARDS"
+        ;;
+    all2)
+	CARDS=`video_cards`
+	INPUT=`discover_input`
+        echo "$INPUT"
+	echo "$CARDS"
+	;;
+
+    mouse|mevdev|kbd|kevdev)
+	INPUT=`discover_input`
+        echo "$INPUT" | grep $ARG
+        ;;
+    bus|driver)
+	CARDS=`video_cards`
+        echo "$CARDS" | grep $ARG
+        ;;
+    cards)
+	CARDS=`video_cards`
+        echo "$CARDS"
+        ;;
+
+    #debug)
+    #    echo "$INPUT" | egrep "(PHYS|HANDLER|NAME|--)"
+    #	;;
+    *)
+        echo "$1: unrecognized argument"
+	echo "Valid parameters: "
+	echo "mouse:  prints the hal ids of the mice"
+	echo "mevdev: prints the evdev mouse events"
+	echo "kbd:    prints the hal ids of the keyboards"
+	echo "kevdev: prints the evdev keyboard events"
+	echo "driver: prints the video card drivers"
+	echo "cards:  prints the video card bus IDs"
+	echo "all:    prints everything"
+        ;;
+esac

opt/le-multiterminal/find-devices.sh

+#!/bin/bash
+
+## Script/function constants
+READ_DEVICES=read-devices
+WRITE_W=write_window
+DEVICES=devices
+declare -a SEATS_LISTED # save the name of the existing seats
+
+
+find_keyboard () {
+	fKey=$1
+	wNum=$(($fKey-1))
+	ONBOARD=$2
+
+	SEATS_LISTED=(seat0 $(loginctl list-seats | grep seat-))
+
+	CREATED=0
+	while (( ! CREATED )); do
+		KEYBOARDS=$(discover-devices kevdev | cut -f2)
+
+		for i in `ls $MDM_DEVICES | grep "\<keyboard"`; do
+			KEYBOARDS=$(sed "s#$i##g" <<< $KEYBOARDS)
+		done
+
+		if [ -z "$KEYBOARDS" ]; then
+		    echo "No keyboards connected"
+		    sleep 1
+		    continue
+		fi
+
+		# See if someone presses the key:
+		PRESSED=$($READ_DEVICES $fKey $KEYBOARDS | grep '^detect' | cut -d'|' -f2)
+
+		if [ -z "$PRESSED" ]; then # if $READ_DEVICES gets killed the script won't do bad stuff
+		    continue
+		fi
+
+		if [ "$PRESSED" = 'timeout' ]; then
+		    continue
+		fi
+
+		CREATED=1
+
+		ln -sf $PRESSED $DEVICES/keyboard_$SEAT_NAME
+
+		for i in `ls $DEVICES | grep "\<keyboard"`; do
+		    if [ "$i" != "keyboard_$SEAT_NAME" ]; then
+			AUX=$(stat -c %N $DEVICES/$i | cut -d '>' -f2 | cut -d "'" -f2)
+			if [ "$AUX" = "$PRESSED" ]; then
+			    # Keyboard link already exists...
+			    rm -f $DEVICES/keyboard_$SEAT_NAME
+			    CREATED=0
+			fi
+		    fi
+		done
+	done
+
+	SYS_DEV=/sys$(udevadm info $PRESSED | grep 'P:' | cut -d ' ' -f2- | sed -r 's/event.*$//g')
+
+	if [ -n "$SYS_DEV" ]; then 
+		# Now we know the seat/output
+		SEAT_NAME=${SEATS_LISTED[$wNum]}
+
+		loginctl attach $SEAT_NAME $SYS_DEV
+
+		find_mouse $fKey $SEAT_NAME
+		exit 1
+	else
+		echo "CAN NOT FIND KEYBOARD"
+
+		exit 0
+	fi
+}
+
+find_mouse () {
+	fKey=$1
+	SEAT_NAME=$2
+
+	CREATED=0
+	TIMEOUT=0
+
+    while (( ! CREATED && ! TIMEOUT )); do
+		MICE=$($DISCOVER_DEVICES mevdev | cut -f2)
+
+		for i in `ls $MDM_DEVICES | grep "\<mouse"`; do
+			MICE=$(sed "s#$i##g" <<< $MICE)
+		done
+
+		if [ -z "$MICE" ]; then
+		    echo "No mice connected"
+		    sleep 1
+		    continue
+		fi
+
+		# Create the lock
+		LOCK_EXISTS=1
+		$WRITE_W wait_load $wNum
+		while (( LOCK_EXISTS )); do
+		    # creates lock to prevent someone from creating while checking
+		    touch ${MC3SL_DEVICES}/lock${fKey}
+		    LOCK_EXISTS=0
+		    
+		    # check if another lock exists
+		    for i in `ls $MC3SL_DEVICES | grep "\<lock"`; do
+				if [ "$i" != "lock${fKey}" ]; then
+			    	LOCK_EXISTS=1
+				fi
+		    done
+
+		    # if another lock exists, wait until it is not removed
+		    if (( LOCK_EXISTS )); then
+				rm -f ${MC3SL_DEVICES}/lock${fKey}
+				sleep 1;
+		    fi
+		done
+
+		# Now we have the lock!
+		$WRITE_W press_mouse $wNum
+
+		# See if someone presses the button:
+		PRESSED=$($READ_DEVICES 13 $MICE | grep '^detect' | cut -d'|' -f2)
+
+		if [ -z "$PRESSED" ]; then # if $READ_DEVICES gets killed the script won't do bad stuff
+		    rm -f ${MC3SL_DEVICES}/lock${fKey}
+		    continue
+		fi
+
+		if [ "$PRESSED" = 'timeout' ]; then
+		    # Give other machines the opportunity to enter the lock
+		    rm -f ${MC3SL_DEVICES}/lock${fKey}
+		    TIMEOUT=1
+		    continue
+		fi
+
+		CREATED=1
+
+		ln -sf $PRESSED $DEVICES/mouse_$SEAT_NAME
+
+		for i in `ls $DEVICES | grep "\<mouse"`; do
+		    if [ "$i" != "mouse_$SEAT_NAME" ]; then
+			AUX=$(stat -c %N $DEVICES/$i | cut -d '>' -f2 | cut -d "'" -f2)
+			if [ "$AUX" = "$PRESSED" ]; then
+			    # Mouse link already exists...
+			    rm -f $DEVICES/mouse_$SEAT_NAME
+			    CREATED=0
+			fi
+		    fi
+		done
+
+		rm -f ${MC3SL_DEVICES}/lock${fKey}
+    done
+
+    SYS_DEV=/sys$(udevadm info $PRESSED | grep 'P:' | cut -d ' ' -f2- | sed -r 's/event.*$//g')
+
+    if [[ "$CREATED" -eq 1 && -n "$SYS_DEV" ]]; then 
+
+		loginctl attach $SEAT_NAME $SYS_DEV
+
+		$WRITE_W ok $wNum
+
+		exit 1
+	else
+		$WRITE_W press_key $wNum
+		rm -f $DEVICES/keyboard_$SEAT_NAME
+		find_keyboard $fKey $SEAT_NAME
+	fi
+}

opt/le-multiterminal/multiseat-controller.sh

+#!/bin/bash
+
+# Copyright (C) 2017 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+#
+# This file is part of le-multiterminal
+#
+# le-multiterminal is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+#### Name: multiseat-controller.sh
+#### Description: Prepares the environment and launches the seat configuration scripts.
+#### Xorg that communicates with the Thinnetworks card (fake-seat) should already be running.
+#### Written by: Stephanie Briere Americo - sba16@c3sl.ufpr.br on 2017.
+
+set -x
+
+#TODO: arrumar caminhos
+
+export PATH=$PATH:$(pwd)
+
+## Auxiliary scripts
+source find-devices.sh
+source window-acess.sh
+
+## Path constants
+MC3SL_SCRIPTS=$(pwd) #/usr/sbin/ 
+MC3SL_DEVICES=devices #/etc/mc3sl/devices/ 
+MC3SL_LOGS=$(pwd) #/etc/mc3sl/logs/ 
+
+## Script/function in other file 
+DISCOVER_DEVICES="$MC3SL_SCRIPTS/discover-devices"
+FIND_KEYBOARD="$MC3SL_SCRIPTS/find_keyboard" # "find-devices.sh"
+CREATE_WINDOW="$MC3SL_SCRIPTS/create_window" # "window-acess.sh"
+WRITE_WINDOW="$MC3SL_SCRIPTS/write_window" # "window-acess.sh"
+
+## Macros
+FAKE_DISPLAY=:90 # display to access fake-seat (secondary card)
+OUTPUTS=("LVDS" "VGA") # output options
+
+## Variables 
+WINDOW_COUNTER=0 # how many windows were created
+N_SEATS_LISTED=0 # how many seats are there in the system
+ONBOARD=0 # if the onboard is connected
+declare -a DISPLAY_XORGS # saves the display of the Xorg processes launched
+declare -a ID_WINDOWS # save the created window ids (used in window-acess.sh)
+
+configure_devices () {
+	# Run configuration script for each seat
+	for WINDOW in `seq 0 $(($WINDOW_COUNTER-1))`; do
+		$FIND_KEYBOARD $(($WINDOW+1)) $ONBOARD &
+
+		$WRITE_WINDOW press_key $WINDOW
+	done
+}
+
+kill_processes () {
+	# Cleans the system by killing all the processes it has created
+	if [[ -n "$(ls | grep lock)" ]]; then
+		rm lock*
+	fi
+
+	if [[ -n "$(ls $MC3SL_DEVICES)" ]]; then
+		rm -f $MC3SL_DEVICES/*
+	fi
+
+	pkill -P $$
+}
+
+### TODO: Serviços que precisam rodar ANTES desse script 
+systemctl stop lightdm
+Xorg :90 -seat __fake-seat-1__ -dpms -s 0 -nocursor &
+sleep 2
+### TO-DO end
+
+############ BEGIN ############
+
+# Checks if there is a device connected to the onboard card
+if [ "$(cat "/sys$(udevadm info /sys/class/drm/card0 | grep "P:" | cut -d " " -f2)/card0-VGA-1/status")" == "connected" ]; then
+	# Runs Xorg and creates the window for the onboard card
+	DISPLAY_XORGS[$WINDOW_COUNTER]=:$(($WINDOW_COUNTER+10))
+	export DISPLAY=${DISPLAY_XORGS[$WINDOW_COUNTER]}
+
+	Xorg ${DISPLAY_XORGS[$WINDOW_COUNTER]} &
+	sleep 1 # TODO
+
+	$CREATE_WINDOW
+	
+	ONBOARD=1
+else
+	WINDOW_COUNTER=1
+fi
+
+# The fake_seat display needs to be exported to run the Xephyr that communicate with it
+export DISPLAY=$FAKE_DISPLAY
+
+for i in `seq 0 1`; do
+	# Display for each output
+	DISPLAY_XORGS[$WINDOW_COUNTER]=:$((WINDOW_COUNTER+10))
+
+	# Run Xephyr to type in this output
+	Xephyr ${DISPLAY_XORGS[$WINDOW_COUNTER]} -output ${OUTPUTS[$WINDOW_COUNTER]} -noxv &
+	sleep 2 # TODO
+
+	# Export display and create a window to write on this output
+	export DISPLAY=${DISPLAY_XORGS[$WINDOW_COUNTER]}
+	$CREATE_WINDOW
+
+	# Again: the fake_seat display needs to be exported
+	export DISPLAY=$FAKE_DISPLAY
+done
+
+#loginctl seat-status seat-V0 | grep $(echo "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2.2/1-1.2.2:1.0/0003:04B3:310C.0008/input/input10" | rev | cut -d "/" -f1 | rev)
+
+configure_devices
+
+# Wait until all seats are configured
+N_SEATS_LISTED=$(($(loginctl list-seats | grep -c "seat-")+$ONBOARD))
+CONFIGURED_SEATS=0
+while [[ $CONFIGURED_SEATS -le $N_SEATS_LISTED ]]; do
+    wait -n $PID_FIND_DEVICES
+    CONFIGURED_SEATS=$(($CONFIGURED_SEATS+1))
+done
+
+kill_processes
+
+#systemctl start lightdm
+
+exit 0

opt/le-multiterminal/window-acess.sh

+#!/bin/bash
+
+# Copyright (C) 2017 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+#
+# This file is part of le-multiterminal
+#
+# le-multiterminal is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+#### Description: Given a specific display, these functions create and write in a window.
+#### There should already be an Xorg/Xephyr running in this display.
+#### Written by: Stephanie Briere Americo - sba16@c3sl.inf.ufpr.br on 2017.
+
+## Script/function in other file 
+NEW_WINDOW="$MC3SL_SCRIPTS/seat-parent-window" #It receives as parameter <RESOLUTION>x<X_Initial>+<Y_Inicial>
+WRITE_MESSAGE="$MC3SL_SCRIPTS/write-message"
+
+create_window () {
+	#### Description: Create a window in a specific display.
+	#### ID_WINDOWS and WINDOW_COUNTER are declared in "multiseat-controller.sh".
+	
+	# Get screen resolution
+	SCREEN_RESOLUTION=$(xdpyinfo -display ${DISPLAY_XORGS[$WINDOW_COUNTER]} | grep dimensions | sed -r 's/^[^0-9]*([0-9]+x[0-9]+).*$/\1/')
+
+	# Creates a new window for writing on this output
+	WINDOW_NAME=w$(($WINDOW_COUNTER+1))
+	$NEW_WINDOW $SCREEN_RESOLUTION+0+0 $WINDOW_NAME &
+	sleep 1 #TODO
+
+	# Get the window id
+	ID_WINDOWS[$WINDOW_COUNTER]=$(xwininfo -name $WINDOW_NAME | grep "Window id" | cut -d ' ' -f4)
+
+	# Increases the number of windows
+	WINDOW_COUNTER=$(($WINDOW_COUNTER+1))
+
+	write_window wait_load $WINDOW_COUNTER
+}
+
+write_window() {
+	#### Description: Writes in a specific window on a particular display.
+	#### Parameters: $1 - message to be written; $2 - display to be used. 
+	#### DISPLAY_XORGS and ID_WINDOWS are declared in "multiseat-controller.sh".
+	
+	export DISPLAY=${DISPLAY_XORGS[$2]}
+	case $1 in
+		ok) 
+			$WRITE_MESSAGE ${ID_WINDOWS[$2]} "Monitor configurado, aguarde o restante ficar pronto" ;;
+		wait_load) 
+			$WRITE_MESSAGE ${ID_WINDOWS[$2]} "Aguarde" ;;
+		press_key) 
+			$WRITE_MESSAGE ${ID_WINDOWS[$2]} "Pressione a tecla F$(($2+1))" ;;
+		press_mouse) 
+			$WRITE_MESSAGE ${ID_WINDOWS[$2]} "Pressione o botão esquerdo do mouse" ;;
+    esac
+}
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