summaryrefslogtreecommitdiff
path: root/package/ppp/files/ppp.sh
blob: 5016be850dcdb677861924556bfef3fa5de4143d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
#!/bin/sh

[ -x /usr/sbin/pppd ] || exit 0

[ -n "$INCLUDE_ONLY" ] || {
	. /lib/functions.sh
	. ../netifd-proto.sh
	init_proto "$@"
}

ppp_generic_init_config() {
	proto_config_add_string "username"
	proto_config_add_string "password"
	proto_config_add_string "keepalive"
	proto_config_add_int "demand"
	proto_config_add_string "pppd_options"
	proto_config_add_string "connect"
	proto_config_add_string "disconnect"
	proto_config_add_boolean "defaultroute"
	proto_config_add_boolean "peerdns"
	proto_config_add_boolean "ipv6"
	proto_config_add_int "mtu"
}

ppp_generic_setup() {
	local config="$1"; shift

	json_get_vars ipv6 peerdns defaultroute demand keepalive username password pppd_options
	[ "$ipv6" = 1 ] || ipv6=""
	[ "$peerdns" = 0 ] && peerdns="" || peerdns="1"
	if [ "$defaultroute" = 1 ]; then
		defaultroute="defaultroute replacedefaultroute";
	else
		defaultroute="nodefaultroute"
	fi
	if [ "${demand:-0}" -gt 0 ]; then
		demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
	else
		demand="persist"
	fi

	[ -n "$mtu" ] || json_get_var mtu mtu

	local interval="${keepalive##*[, ]}"
	[ "$interval" != "$keepalive" ] || interval=5
	[ -n "$connect" ] || json_get_var connect connect
	[ -n "$disconnect" ] || json_get_var disconnect disconnect

	proto_run_command "$config" /usr/sbin/pppd \
		nodetach ipparam "$config" \
		ifname "${proto:-ppp}-$config" \
		${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive%%[, ]*}} \
		${ipv6:++ipv6} $defaultroute \
		${peerdns:+usepeerdns} \
		$demand maxfail 1 \
		${username:+user "$username" password "$password"} \
		${connect:+connect "$connect"} \
		${disconnect:+disconnect "$disconnect"} \
		ip-up-script /lib/netifd/ppp-up \
		ipv6-up-script /lib/netifd/ppp-up \
		ip-down-script /lib/netifd/ppp-down \
		ipv6-down-script /lib/netifd/ppp-down \
		${mtu:+mtu $mtu mru $mtu} \
		$pppd_options "$@"
}

ppp_generic_teardown() {
	local interface="$1"

	case "$ERROR" in
		11|19)
			proto_notify_error "$interface" AUTH_FAILED
			proto_block_restart "$interface"
		;;
		2)
			proto_notify_error "$interface" INVALID_OPTIONS
			proto_block_restart "$interface"
		;;
	esac
	proto_kill_command "$interface"
}

# PPP on serial device

proto_ppp_init_config() {
	proto_config_add_string "device"
	ppp_generic_init_config
	no_device=1
	available=1
}

proto_ppp_setup() {
	local config="$1"

	json_get_var device device
	ppp_generic_setup "$config" "$device"
}

proto_ppp_teardown() {
	ppp_generic_teardown "$@"
}

proto_pppoe_init_config() {
	ppp_generic_init_config
	proto_config_add_string "ac"
	proto_config_add_string "service"
}

proto_pppoe_setup() {
	local config="$1"
	local iface="$2"

	for module in slhc ppp_generic pppox pppoe; do
		/sbin/insmod $module 2>&- >&-
	done

	json_get_var mtu mtu
	mtu="${mtu:-1492}"

	json_get_var ac ac
	json_get_var service service

	ppp_generic_setup "$config" \
		plugin rp-pppoe.so \
		${ac:+rp_pppoe_ac "$ac"} \
		${service:+rp_pppoe_service "$service"} \
		"nic-$iface"
}

proto_pppoe_teardown() {
	ppp_generic_teardown "$@"
}

proto_pppoa_init_config() {
	ppp_generic_init_config
	proto_config_add_int "atmdev"
	proto_config_add_int "vci"
	proto_config_add_int "vpi"
	proto_config_add_string "encaps"
	no_device=1
	available=1
}

proto_pppoa_setup() {
	local config="$1"
	local iface="$2"

	for module in slhc ppp_generic pppox pppoatm; do
		/sbin/insmod $module 2>&- >&-
	done

	json_get_vars atmdev vci vpi encaps

	case "$encaps" in
		1|vc) encaps="vc-encaps" ;;
		*) encaps="llc-encaps" ;;
	esac

	ppp_generic_setup "$config" \
		plugin pppoatm.so \
		${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
		${encaps}
}

proto_pppoa_teardown() {
	ppp_generic_teardown "$@"
}

proto_pptp_init_config() {
	ppp_generic_init_config
	proto_config_add_string "server"
	proto_config_add_boolean "buffering"
	available=1
	no_device=1
}

proto_pptp_setup() {
	local config="$1"
	local iface="$2"

	local ip serv_addr server
	json_get_var server server && {
		for ip in $(resolveip -t 5 "$server"); do
			( proto_add_host_dependency "$config" "$ip" )
			serv_addr=1
		done
	}
	[ -n "$serv_addr" ] || {
		echo "Could not resolve server address"
		sleep 5
		proto_setup_failed "$config"
		exit 1
	}

	local buffering
	json_get_var buffering buffering
	[ "${buffering:-1}" == 0 ] && buffering="--nobuffer" || buffering=

	local load
	for module in slhc ppp_generic ppp_async ppp_mppe ip_gre gre pptp; do
		grep -q "$module" /proc/modules && continue
		/sbin/insmod $module 2>&- >&-
		load=1
	done
	[ "$load" = "1" ] && sleep 1

	ppp_generic_setup "$config" \
		plugin pptp.so \
		pptp_server $server \
		file /etc/ppp/options.pptp
}

proto_pptp_teardown() {
	ppp_generic_teardown "$@"
}

[ -n "$INCLUDE_ONLY" ] || {
	add_protocol ppp
	[ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
	[ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
	[ -f /usr/lib/pppd/*/pptp.so ] && add_protocol pptp
}