-scan_ppp() {
- config_get ifname "$1" ifname
- pppdev="${pppdev:-0}"
- config_set "$1" device "$ifname"
- config_set "$1" ifname "ppp$pppdev"
- config_set "$1" unit "$pppdev"
+stop_interface_ppp() {
+ local cfg="$1"
+
+ local proto
+ config_get proto "$cfg" proto
+
+ local link="$proto-$cfg"
+ service_kill pppd "/var/run/ppp-${link}.pid"
+
+ remove_dns "$cfg"
+
+ local lock="/var/lock/ppp-$link"
+ [ -f "$lock" ] && lock -u "$lock"
}
start_pppd() {
local cfg="$1"; shift
+
+ local proto
+ config_get proto "$cfg" proto
+
+ # unique link identifier
+ local link="${proto:-ppp}-$cfg"
+
+ # make sure only one pppd process is started
+ lock "/var/lock/ppp-${link}"
+ local pid="$(head -n1 /var/run/ppp-${link}.pid 2>/dev/null)"
+ [ -d "/proc/$pid" ] && grep pppd "/proc/$pid/cmdline" 2>/dev/null >/dev/null && {
+ lock -u "/var/lock/ppp-${link}"
+ 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
+
+ local device
config_get device "$cfg" device
- config_get unit "$cfg" unit
+
+ local username
config_get username "$cfg" username
+
+ local password
config_get password "$cfg" password
+
+ local keepalive
config_get keepalive "$cfg" keepalive
- interval="${keepalive%%*[, ]}"
+
+ local connect
+ config_get connect "$cfg" connect
+
+ local disconnect
+ config_get disconnect "$cfg" disconnect
+
+ local pppd_options
+ config_get pppd_options "$cfg" pppd_options
+
+ local defaultroute
+ config_get_bool defaultroute "$cfg" defaultroute 1
+ [ "$defaultroute" -eq 1 ] && \
+ defaultroute="defaultroute replacedefaultroute" || defaultroute="nodefaultroute"
+
+ local interval="${keepalive##*[, ]}"
[ "$interval" != "$keepalive" ] || interval=5
-
- config_get demand "$cfg" demand
- [ -n "$demand" ] && echo "nameserver 1.1.1.1" > /tmp/resolv.conf
- /usr/sbin/pppd "$@" \
- ${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive##[, ]*}} \
- ${demand:+precompiled-active-filter /etc/ppp/filter demand idle }${demand:-persist} \
- usepeerdns \
- defaultroute \
- replacedefaultroute \
+
+ local dns
+ config_get dns "$config" dns
+
+ local has_dns=0
+ local peer_default=1
+ [ -n "$dns" ] && {
+ has_dns=1
+ peer_default=0
+ }
+
+ local peerdns
+ config_get_bool peerdns "$cfg" peerdns $peer_default
+
+ [ "$peerdns" -eq 1 ] && {
+ peerdns="usepeerdns"
+ } || {
+ peerdns=""
+ add_dns "$cfg" $dns
+ }
+
+ local demand
+ config_get demand "$cfg" demand 0
+
+ local demandargs
+ [ "$demand" -gt 0 ] && {
+ demandargs="precompiled-active-filter /etc/ppp/filter demand idle $demand"
+ [ "$has_dns" -eq 0 ] && add_dns "$cfg" 1.1.1.1
+ } || {
+ demandargs="persist"
+ }
+
+ local ipv6
+ config_get_bool ipv6 "$cfg" ipv6 0
+ [ "$ipv6" -eq 1 ] && ipv6="+ipv6" || ipv6=""
+
+ start-stop-daemon -S -b -x /usr/sbin/pppd -m -p /var/run/ppp-$link.pid -- "$@" \
+ ${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive%%[, ]*}} \
+ $demandargs \
+ $peerdns \
+ $defaultroute \
${username:+user "$username" password "$password"} \
- linkname "$cfg" \
- ipparam "$cfg"
+ ipparam "$cfg" \
+ ifname "$link" \
+ ${connect:+connect "$connect"} \
+ ${disconnect:+disconnect "$disconnect"} \
+ ${ipv6} \
+ ${pppd_options} \
+ nodetach
+
+ lock -u "/var/lock/ppp-${link}"
+}
+
+setup_interface_ppp() {
+ local iface="$1"
+ local config="$2"
+
+ local device
+ config_get device "$config" device
+
+ local mtu
+ config_get mtu "$config" mtu
+
+ mtu=${mtu:-1492}
+ start_pppd "$config" \
+ mtu $mtu mru $mtu \
+ "$device"
}
+