| 1 | stop_interface_ppp() { |
| 2 | local cfg="$1" |
| 3 | |
| 4 | local proto |
| 5 | config_get proto "$cfg" proto |
| 6 | |
| 7 | local link="$proto-$cfg" |
| 8 | [ -f "/var/run/ppp-${link}.pid" ] && { |
| 9 | local pid="$(head -n1 /var/run/ppp-${link}.pid 2>/dev/null)" |
| 10 | local try=0 |
| 11 | grep -qs pppd "/proc/$pid/cmdline" && kill -TERM $pid && \ |
| 12 | while grep -qs pppd "/proc/$pid/cmdline" && [ $((try++)) -lt 5 ]; do sleep 1; done |
| 13 | grep -qs pppd "/proc/$pid/cmdline" && kill -KILL $pid && \ |
| 14 | while grep -qs pppd "/proc/$pid/cmdline"; do sleep 1; done |
| 15 | rm -f "/var/run/ppp-${link}.pid" |
| 16 | } |
| 17 | |
| 18 | remove_dns "$cfg" |
| 19 | |
| 20 | local lock="/var/lock/ppp-$link" |
| 21 | [ -f "$lock" ] && lock -u "$lock" |
| 22 | } |
| 23 | |
| 24 | start_pppd() { |
| 25 | local cfg="$1"; shift |
| 26 | |
| 27 | local proto |
| 28 | config_get proto "$cfg" proto |
| 29 | |
| 30 | # unique link identifier |
| 31 | local link="${proto:-ppp}-$cfg" |
| 32 | |
| 33 | # make sure only one pppd process is started |
| 34 | lock "/var/lock/ppp-${link}" |
| 35 | local pid="$(head -n1 /var/run/ppp-${link}.pid 2>/dev/null)" |
| 36 | [ -d "/proc/$pid" ] && grep pppd "/proc/$pid/cmdline" 2>/dev/null >/dev/null && { |
| 37 | lock -u "/var/lock/ppp-${link}" |
| 38 | return 0 |
| 39 | } |
| 40 | |
| 41 | # Workaround: sometimes hotplug2 doesn't deliver the hotplug event for creating |
| 42 | # /dev/ppp fast enough to be used here |
| 43 | [ -e /dev/ppp ] || mknod /dev/ppp c 108 0 |
| 44 | |
| 45 | local device |
| 46 | config_get device "$cfg" device |
| 47 | |
| 48 | local username |
| 49 | config_get username "$cfg" username |
| 50 | |
| 51 | local password |
| 52 | config_get password "$cfg" password |
| 53 | |
| 54 | local keepalive |
| 55 | config_get keepalive "$cfg" keepalive |
| 56 | |
| 57 | local connect |
| 58 | config_get connect "$cfg" connect |
| 59 | |
| 60 | local disconnect |
| 61 | config_get disconnect "$cfg" disconnect |
| 62 | |
| 63 | local pppd_options |
| 64 | config_get pppd_options "$cfg" pppd_options |
| 65 | |
| 66 | local defaultroute |
| 67 | config_get_bool defaultroute "$cfg" defaultroute 1 |
| 68 | [ "$defaultroute" -eq 1 ] && \ |
| 69 | defaultroute="defaultroute replacedefaultroute" || defaultroute="nodefaultroute" |
| 70 | |
| 71 | local interval="${keepalive##*[, ]}" |
| 72 | [ "$interval" != "$keepalive" ] || interval=5 |
| 73 | |
| 74 | local dns |
| 75 | config_get dns "$config" dns |
| 76 | |
| 77 | local has_dns=0 |
| 78 | local peer_default=1 |
| 79 | [ -n "$dns" ] && { |
| 80 | has_dns=1 |
| 81 | peer_default=0 |
| 82 | } |
| 83 | |
| 84 | local peerdns |
| 85 | config_get_bool peerdns "$cfg" peerdns $peer_default |
| 86 | |
| 87 | [ "$peerdns" -eq 1 ] && { |
| 88 | peerdns="usepeerdns" |
| 89 | } || { |
| 90 | peerdns="" |
| 91 | add_dns "$cfg" $dns |
| 92 | } |
| 93 | |
| 94 | local demand |
| 95 | config_get demand "$cfg" demand 0 |
| 96 | |
| 97 | local demandargs |
| 98 | [ "$demand" -gt 0 ] && { |
| 99 | demandargs="precompiled-active-filter /etc/ppp/filter demand idle $demand" |
| 100 | [ "$has_dns" -eq 0 ] && add_dns "$cfg" 1.1.1.1 |
| 101 | } || { |
| 102 | demandargs="persist" |
| 103 | } |
| 104 | |
| 105 | local ipv6 |
| 106 | config_get_bool ipv6 "$cfg" ipv6 0 |
| 107 | [ "$ipv6" -eq 1 ] && ipv6="+ipv6" || ipv6="" |
| 108 | |
| 109 | start-stop-daemon -S -b -x /usr/sbin/pppd -m -p /var/run/ppp-$link.pid -- "$@" \ |
| 110 | ${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive%%[, ]*}} \ |
| 111 | $demandargs \ |
| 112 | $peerdns \ |
| 113 | $defaultroute \ |
| 114 | ${username:+user "$username" password "$password"} \ |
| 115 | ipparam "$cfg" \ |
| 116 | ifname "$link" \ |
| 117 | ${connect:+connect "$connect"} \ |
| 118 | ${disconnect:+disconnect "$disconnect"} \ |
| 119 | ${ipv6} \ |
| 120 | ${pppd_options} \ |
| 121 | nodetach |
| 122 | |
| 123 | lock -u "/var/lock/ppp-${link}" |
| 124 | } |
| 125 | |
| 126 | setup_interface_ppp() { |
| 127 | local iface="$1" |
| 128 | local config="$2" |
| 129 | |
| 130 | local device |
| 131 | config_get device "$config" device |
| 132 | |
| 133 | local mtu |
| 134 | config_get mtu "$config" mtu |
| 135 | |
| 136 | mtu=${mtu:-1492} |
| 137 | start_pppd "$config" \ |
| 138 | mtu $mtu mru $mtu \ |
| 139 | "$device" |
| 140 | } |
| 141 | |
| 142 | |
