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