scan_ppp() { config_get ifname "$1" ifname pppdev="${pppdev:-0}" config_set "$1" ifname "ppp$pppdev" config_set "$1" unit "$pppdev" pppdev="$(($pppdev + 1))" } start_pppd() { local cfg="$1"; shift # make sure only one pppd process is started lock "/var/lock/ppp-${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-${cfg}" return 0 } config_get device "$cfg" device config_get unit "$cfg" unit config_get username "$cfg" username config_get password "$cfg" password config_get keepalive "$cfg" keepalive config_get connect "$cfg" connect config_get disconnect "$cfg" disconnect config_get pppd_options "$cfg" pppd_options interval="${keepalive##*[, ]}" [ "$interval" != "$keepalive" ] || interval=5 config_get demand "$cfg" demand [ -n "$demand" ] && echo "nameserver 1.1.1.1" > /tmp/resolv.conf.auto /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 \ ${username:+user "$username" password "$password"} \ unit "$unit" \ linkname "$cfg" \ ipparam "$cfg" \ ${connect:+connect "$connect"} \ ${disconnect:+disconnect "$disconnect"} \ ${pppd_options} lock -u "/var/lock/ppp-${cfg}" } setup_interface_ppp() { local iface="$1" local config="$2" config_get device "$config" device config_get mtu "$cfg" mtu mtu=${mtu:-1492} start_pppd "$config" \ mtu $mtu mru $mtu \ "$device" }