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 | |