2a7e76b7fe2c3a092f8f7eea8437d41bb02f5e5d
[openwrt/openwrt.git] / package / network / services / ppp / files / ppp.sh
1 #!/bin/sh
2
3 [ -x /usr/sbin/pppd ] || exit 0
4
5 [ -n "$INCLUDE_ONLY" ] || {
6 . /lib/functions.sh
7 . /lib/functions/network.sh
8 . ../netifd-proto.sh
9 init_proto "$@"
10 }
11
12 ppp_select_ipaddr()
13 {
14 local subnets=$1
15 local res
16 local res_mask
17
18 for subnet in $subnets; do
19 local addr="${subnet%%/*}"
20 local mask="${subnet#*/}"
21
22 if [ -n "$res_mask" -a "$mask" != 32 ]; then
23 [ "$mask" -gt "$res_mask" ] || [ "$res_mask" = 32 ] && {
24 res="$addr"
25 res_mask="$mask"
26 }
27 elif [ -z "$res_mask" ]; then
28 res="$addr"
29 res_mask="$mask"
30 fi
31 done
32
33 echo "$res"
34 }
35
36 ppp_exitcode_tostring()
37 {
38 local errorcode=$1
39 [ -n "$errorcode" ] || errorcode=5
40
41 case "$errorcode" in
42 0) echo "OK" ;;
43 1) echo "FATAL_ERROR" ;;
44 2) echo "OPTION_ERROR" ;;
45 3) echo "NOT_ROOT" ;;
46 4) echo "NO_KERNEL_SUPPORT" ;;
47 5) echo "USER_REQUEST" ;;
48 6) echo "LOCK_FAILED" ;;
49 7) echo "OPEN_FAILED" ;;
50 8) echo "CONNECT_FAILED" ;;
51 9) echo "PTYCMD_FAILED" ;;
52 10) echo "NEGOTIATION_FAILED" ;;
53 11) echo "PEER_AUTH_FAILED" ;;
54 12) echo "IDLE_TIMEOUT" ;;
55 13) echo "CONNECT_TIME" ;;
56 14) echo "CALLBACK" ;;
57 15) echo "PEER_DEAD" ;;
58 16) echo "HANGUP" ;;
59 17) echo "LOOPBACK" ;;
60 18) echo "INIT_FAILED" ;;
61 19) echo "AUTH_TOPEER_FAILED" ;;
62 20) echo "TRAFFIC_LIMIT" ;;
63 21) echo "CNID_AUTH_FAILED";;
64 *) echo "UNKNOWN_ERROR" ;;
65 esac
66 }
67
68 ppp_generic_init_config() {
69 proto_config_add_string username
70 proto_config_add_string password
71 proto_config_add_string keepalive
72 proto_config_add_boolean keepalive_adaptive
73 proto_config_add_int demand
74 proto_config_add_string pppd_options
75 proto_config_add_string 'connect:file'
76 proto_config_add_string 'disconnect:file'
77 proto_config_add_string ipv6
78 proto_config_add_boolean authfail
79 proto_config_add_int mtu
80 proto_config_add_string pppname
81 proto_config_add_string unnumbered
82 }
83
84 ppp_generic_setup() {
85 local config="$1"; shift
86 local localip
87
88 json_get_vars ipv6 demand keepalive keepalive_adaptive username password pppd_options pppname unnumbered
89 if [ "$ipv6" = 0 ]; then
90 ipv6=""
91 elif [ -z "$ipv6" -o "$ipv6" = auto ]; then
92 ipv6=1
93 autoipv6=1
94 fi
95
96 if [ "${demand:-0}" -gt 0 ]; then
97 demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
98 else
99 demand=""
100 fi
101 [ -n "$mtu" ] || json_get_var mtu mtu
102 [ -n "$pppname" ] || pppname="${proto:-ppp}-$config"
103 [ -n "$unnumbered" ] && {
104 local subnets
105 ( proto_add_host_dependency "$config" "" "$unnumbered" )
106 network_get_subnets subnets "$unnumbered"
107 localip=$(ppp_select_ipaddr "$subnets")
108 [ -n "$localip" ] || {
109 proto_block_restart "$config"
110 return
111 }
112 }
113
114 local lcp_failure="${keepalive%%[, ]*}"
115 local lcp_interval="${keepalive##*[, ]}"
116 local lcp_adaptive="lcp-echo-adaptive"
117 [ "${lcp_failure:-0}" -lt 1 ] && lcp_failure=""
118 [ "$lcp_interval" != "$keepalive" ] || lcp_interval=5
119 [ "${keepalive_adaptive:-1}" -lt 1 ] && lcp_adaptive=""
120 [ -n "$connect" ] || json_get_var connect connect
121 [ -n "$disconnect" ] || json_get_var disconnect disconnect
122
123 proto_run_command "$config" /usr/sbin/pppd \
124 nodetach ipparam "$config" \
125 ifname "$pppname" \
126 ${localip:+$localip:} \
127 ${lcp_failure:+lcp-echo-interval $lcp_interval lcp-echo-failure $lcp_failure $lcp_adaptive} \
128 ${ipv6:++ipv6} \
129 ${autoipv6:+set AUTOIPV6=1} \
130 nodefaultroute \
131 usepeerdns \
132 $demand maxfail 1 \
133 ${username:+user "$username" password "$password"} \
134 ${connect:+connect "$connect"} \
135 ${disconnect:+disconnect "$disconnect"} \
136 ip-up-script /lib/netifd/ppp-up \
137 ipv6-up-script /lib/netifd/ppp-up \
138 ip-down-script /lib/netifd/ppp-down \
139 ipv6-down-script /lib/netifd/ppp-down \
140 ${mtu:+mtu $mtu mru $mtu} \
141 "$@" $pppd_options
142 }
143
144 ppp_generic_teardown() {
145 local interface="$1"
146 local errorstring=$(ppp_exitcode_tostring $ERROR)
147
148 case "$ERROR" in
149 0)
150 ;;
151 2)
152 proto_notify_error "$interface" "$errorstring"
153 proto_block_restart "$interface"
154 ;;
155 11|19)
156 json_get_var authfail authfail
157 proto_notify_error "$interface" "$errorstring"
158 if [ "${authfail:-0}" -gt 0 ]; then
159 proto_block_restart "$interface"
160 fi
161 ;;
162 *)
163 proto_notify_error "$interface" "$errorstring"
164 ;;
165 esac
166
167 proto_kill_command "$interface"
168 }
169
170 # PPP on serial device
171
172 proto_ppp_init_config() {
173 proto_config_add_string "device"
174 ppp_generic_init_config
175 no_device=1
176 available=1
177 lasterror=1
178 }
179
180 proto_ppp_setup() {
181 local config="$1"
182
183 json_get_var device device
184 ppp_generic_setup "$config" "$device"
185 }
186
187 proto_ppp_teardown() {
188 ppp_generic_teardown "$@"
189 }
190
191 proto_pppoe_init_config() {
192 ppp_generic_init_config
193 proto_config_add_string "ac"
194 proto_config_add_string "service"
195 proto_config_add_string "host_uniq"
196 lasterror=1
197 }
198
199 proto_pppoe_setup() {
200 local config="$1"
201 local iface="$2"
202
203 for module in slhc ppp_generic pppox pppoe; do
204 /sbin/insmod $module 2>&- >&-
205 done
206
207 json_get_var mtu mtu
208 mtu="${mtu:-1492}"
209
210 json_get_var ac ac
211 json_get_var service service
212 json_get_var host_uniq host_uniq
213
214 ppp_generic_setup "$config" \
215 plugin rp-pppoe.so \
216 ${ac:+rp_pppoe_ac "$ac"} \
217 ${service:+rp_pppoe_service "$service"} \
218 ${host_uniq:+host-uniq "$host_uniq"} \
219 "nic-$iface"
220 }
221
222 proto_pppoe_teardown() {
223 ppp_generic_teardown "$@"
224 }
225
226 proto_pppoa_init_config() {
227 ppp_generic_init_config
228 proto_config_add_int "atmdev"
229 proto_config_add_int "vci"
230 proto_config_add_int "vpi"
231 proto_config_add_string "encaps"
232 no_device=1
233 available=1
234 lasterror=1
235 }
236
237 proto_pppoa_setup() {
238 local config="$1"
239 local iface="$2"
240
241 for module in slhc ppp_generic pppox pppoatm; do
242 /sbin/insmod $module 2>&- >&-
243 done
244
245 json_get_vars atmdev vci vpi encaps
246
247 case "$encaps" in
248 1|vc) encaps="vc-encaps" ;;
249 *) encaps="llc-encaps" ;;
250 esac
251
252 ppp_generic_setup "$config" \
253 plugin pppoatm.so \
254 ${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
255 ${encaps}
256 }
257
258 proto_pppoa_teardown() {
259 ppp_generic_teardown "$@"
260 }
261
262 proto_pptp_init_config() {
263 ppp_generic_init_config
264 proto_config_add_string "server"
265 proto_config_add_string "interface"
266 available=1
267 no_device=1
268 lasterror=1
269 }
270
271 proto_pptp_setup() {
272 local config="$1"
273 local iface="$2"
274
275 local ip serv_addr server interface
276 json_get_vars interface server
277 [ -n "$server" ] && {
278 for ip in $(resolveip -t 5 "$server"); do
279 ( proto_add_host_dependency "$config" "$ip" $interface )
280 serv_addr=1
281 done
282 }
283 [ -n "$serv_addr" ] || {
284 echo "Could not resolve server address"
285 sleep 5
286 proto_setup_failed "$config"
287 exit 1
288 }
289
290 local load
291 for module in slhc ppp_generic ppp_async ppp_mppe ip_gre gre pptp; do
292 grep -q "^$module " /proc/modules && continue
293 /sbin/insmod $module 2>&- >&-
294 load=1
295 done
296 [ "$load" = "1" ] && sleep 1
297
298 ppp_generic_setup "$config" \
299 plugin pptp.so \
300 pptp_server $server \
301 file /etc/ppp/options.pptp
302 }
303
304 proto_pptp_teardown() {
305 ppp_generic_teardown "$@"
306 }
307
308 [ -n "$INCLUDE_ONLY" ] || {
309 add_protocol ppp
310 [ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
311 [ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
312 [ -f /usr/lib/pppd/*/pptp.so ] && add_protocol pptp
313 }
314