X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/f52d66ff00b24111f87c274d3d7085ef2e1d27b1..6772ab104f68ed7bbfcdfa41c0fb65e6e5968cf2:/package/ppp/files/ppp.sh

diff --git a/package/ppp/files/ppp.sh b/package/ppp/files/ppp.sh
index 343223af1..62f584fa8 100644
--- a/package/ppp/files/ppp.sh
+++ b/package/ppp/files/ppp.sh
@@ -1,29 +1,128 @@
 scan_ppp() {
 	config_get ifname "$1" ifname
 	pppdev="${pppdev:-0}"
-	config_set "$1" ifname "ppp$pppdev"
-	config_set "$1" unit "$pppdev"
+	config_get devunit "$1" unit
+	{
+	        unit=
+	        pppif=
+	        if [ ! -d /tmp/.ppp-counter ]; then
+	       	     mkdir -p /tmp/.ppp-counter
+	        fi
+	        local maxunit
+	        maxunit="$(cat /tmp/.ppp-counter/max-unit 2>/dev/null)" 
+	        if [ -z "$maxunit" ]; then
+	            maxunit=-1
+	        fi
+	        local i
+	        i=0
+	        while [ $i -le $maxunit ]; do
+	             local unitdev
+	             unitdev="$(cat /tmp/.ppp-counter/ppp${i} 2>/dev/null)"
+	             if [ "$unitdev" = "$1" ]; then
+	                  unit="$i"
+	                  pppif="ppp${i}"
+	                  break
+	             fi
+	             i="$(($i + 1))"
+	        done 
+	        if [ -z "$unit" ] || [ -z "$pppif" ]; then
+	            maxunit="$(($maxunit + 1))"
+	            if [ -n "$devunit" ]; then
+	             	unit="$devunit"
+		    elif [ "${ifname%%[0-9]*}" = ppp ]; then
+			 unit="${ifname##ppp}"
+	            else
+	                 unit="$maxunit"
+	            fi 
+         	    [ "$maxunit" -lt "$unit" ] && maxunit="$unit"
+		    pppif="ppp${unit}"
+		    echo "$1" >/tmp/.ppp-counter/$pppif 2>/dev/null
+		    echo "$maxunit" >/tmp/.ppp-counter/max-unit 2>/dev/null
+	        fi
+		config_set "$1" ifname "ppp$unit"
+		config_set "$1" unit "$unit"
+	}
 }
 
 start_pppd() {
 	local cfg="$1"; shift
+	local ifname
+
+	# make sure the network state references the correct ifname
+	scan_ppp "$cfg"
+	config_get ifname "$cfg" ifname
+	set_interface_ifname "$cfg" "$ifname"
+
+	# make sure only one pppd process is started
+	lock "/var/lock/ppp-${cfg}"
+	local pid="$(head -n1 /var/run/ppp-${cfg}.pid 2>/dev/null)"
+	[ -d "/proc/$pid" ] && grep pppd "/proc/$pid/cmdline" 2>/dev/null >/dev/null && {
+		lock -u "/var/lock/ppp-${cfg}"
+		return 0
+	}
+
+	# Workaround: sometimes hotplug2 doesn't deliver the hotplug event for creating
+	# /dev/ppp fast enough to be used here
+	[ -e /dev/ppp ] || mknod /dev/ppp c 108 0
+
 	config_get device "$cfg" device
 	config_get unit "$cfg" unit
 	config_get username "$cfg" username
 	config_get password "$cfg" password
 	config_get keepalive "$cfg" keepalive
-	interval="${keepalive%%*[, ]}"
+
+	config_get connect "$cfg" connect
+	config_get disconnect "$cfg" disconnect
+	config_get pppd_options "$cfg" pppd_options
+	config_get_bool defaultroute "$cfg" defaultroute 1
+	[ "$defaultroute" -eq 1 ] && defaultroute="defaultroute replacedefaultroute" || defaultroute=""
+
+	interval="${keepalive##*[, ]}"
 	[ "$interval" != "$keepalive" ] || interval=5
-	
+
+	config_get_bool peerdns "$cfg" peerdns 1
+	[ "$peerdns" -eq 1 ] && peerdns="usepeerdns" || {
+		peerdns=""
+		config_get dns "$config" dns
+		for dns in $dns; do
+			grep -q "$dns" /tmp/resolv.conf.auto 2>/dev/null || \
+				echo "nameserver $dns" >> /tmp/resolv.conf.auto
+		done
+	}
+
 	config_get demand "$cfg" demand
-	[ -n "$demand" ] && echo "nameserver 1.1.1.1" > /tmp/resolv.conf
+	[ -n "$demand" ] && echo "nameserver 1.1.1.1" > /tmp/resolv.conf.auto
+
+	config_get_bool ipv6 "$cfg" ipv6 0
+	[ "$ipv6" -eq 1 ] && ipv6="+ipv6" || ipv6=""
+
 	/usr/sbin/pppd "$@" \
-		${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive##[, ]*}} \
+		${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive%%[, ]*}} \
 		${demand:+precompiled-active-filter /etc/ppp/filter demand idle }${demand:-persist} \
-		usepeerdns \
-		defaultroute \
-		replacedefaultroute \
+		$peerdns \
+		$defaultroute \
 		${username:+user "$username" password "$password"} \
+		unit "$unit" \
 		linkname "$cfg" \
-		ipparam "$cfg"
+		ipparam "$cfg" \
+		${connect:+connect "$connect"} \
+		${disconnect:+disconnect "$disconnect"} \
+		${ipv6} \
+		${pppd_options}
+
+	lock -u "/var/lock/ppp-${cfg}"
+}
+
+setup_interface_ppp() {
+	local iface="$1"
+	local config="$2"
+
+	config_get device "$config" device
+
+	config_get mtu "$config" mtu
+	mtu=${mtu:-1492}
+	start_pppd "$config" \
+		mtu $mtu mru $mtu \
+		"$device"
 }
+