/[baselayout]/trunk/net.Linux/pppd.sh
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Revision 2625 - (hide annotations) (download) (as text)
Thu Apr 19 07:37:59 2007 UTC (7 years, 5 months ago) by uberlord
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printf is more portable than echo -n
1 uberlord 2547 # Copyright 2005-2007 Gentoo Foundation
2     # Distributed under the terms of the GNU General Public License v2
3    
4     pppd_depend() {
5     program /usr/sbin/pppd
6     after interface
7     before dhcp
8     provide ppp
9     }
10    
11     is_ppp() {
12     [ -e /var/run/ppp-"${IFACE}".pid ]
13     }
14    
15     requote() {
16     printf "'%s' " "$@"
17     }
18    
19     pppd_start() {
20     ${IN_BACKGROUND} && return 0
21    
22 uberlord 2621 if [ "${IFACE%%[0-9]*}" != "ppp" ] ; then
23 uberlord 2547 eerror "PPP can only be invoked from net.ppp[0-9]"
24     return 1
25     fi
26    
27     local link= i= opts= unit="${IFACE#ppp}" mtu=
28     if [ -z "${unit}" ] ; then
29 uberlord 2621 eerror "PPP requires a unit - use net.ppp[0-9] instead of net.ppp"
30 uberlord 2547 return 1
31     fi
32    
33     # PPP requires a link to communicate over - normally a serial port
34     # PPPoE communicates over Ethernet
35     # PPPoA communicates over ATM
36     # In all cases, the link needs to be available before we start PPP
37     eval link=\$link_${IFVAR}
38     if [ -z "${link}" ] ; then
39     eerror "link_${IFVAR} has not been set in /etc/conf.d/net"
40     return 1
41     fi
42    
43     case "${link}" in
44     /*)
45     if [ ! -e "${link}" ] ; then
46     eerror "${link} does not exist"
47     eerror "Please verify hardware or kernel module (driver)"
48     return 1
49     fi
50     ;;
51     esac
52    
53     eval $(_get_array "pppd_${IFVAR}")
54 uberlord 2623 opts="$@"
55 uberlord 2547
56 uberlord 2623 local mtu= hasmtu=false hasmru=false hasmaxfail=false haspersits=false
57     local hasupdetach=false
58 uberlord 2547 for i in "$@" ; do
59     set -- ${i}
60     case "$1" in
61     unit|nodetach|linkname)
62     eerror "The option \"$1\" is not allowed in pppd_${IFVAR}"
63     return 1
64     ;;
65 uberlord 2623 mtu) hasmtu=true ;;
66     mru) hasmru=true ;;
67     maxfail) hasmaxfail=true ;;
68     persist) haspersist=true ;;
69     updetach) hasupdetach=true;
70 uberlord 2547 esac
71     done
72    
73     # Might be set in conf.d/net
74     local username= password= passwordset=
75     eval username=\$username_${IFVAR}
76     eval password=\$password_${IFVAR}
77     eval passwordset=\${password_${IFVAR}-x}
78     if [ -n "${username}" ] \
79     && [ -n "${password}" -o -z "${passwordset}" ] ; then
80     opts="${opts} plugin passwordfd.so passwordfd 0"
81     fi
82    
83 uberlord 2621 if [ -n "${mtu}" ] ; then
84 uberlord 2623 ${hasmtu} || opts="${opts} mtu ${mtu}"
85     ${hasmru} || opts="${opts} mru ${mtu}"
86 uberlord 2621 fi
87 uberlord 2623 ${hasmailfail} || opts="${opts} maxfail 0"
88     ${haspersist} || opts="${opts} persist"
89 uberlord 2547
90     # Set linkname because we need /var/run/ppp-${linkname}.pid
91 uberlord 2621 # This pidfile has the advantage of being there,
92     # even if ${IFACE} interface was never started
93 uberlord 2547 opts="linkname ${IFACE} ${opts}"
94    
95     # Setup auth info
96     if [ -n "${username}" ] ; then
97 uberlord 2623 opts="user '${username}' remotename ${IFACE} ${opts}"
98 uberlord 2547 fi
99    
100     # Load a custom interface configuration file if it exists
101     [ -f "/etc/ppp/options.${IFACE}" ] \
102     && opts="${opts} file /etc/ppp/options.${IFACE}"
103    
104     # Set unit
105     opts="unit ${unit} ${opts}"
106    
107     # Setup connect script
108     local chatopts="/usr/sbin/chat -e -E -v"
109     eval $(_get_array "phone_number_${IFVAR}")
110     [ -n "$1" ] && chatopts="${chatopts} -T '$1'"
111     [ -n "$2" ] && chatopts="${chatopts} -U '$2'"
112     eval $(_get_array "chat_${IFVAR}")
113     if [ -n "$@" ] ; then
114     opts="${opts} connect $(printf "'%s' " "${chatopts} $(printf "'%s' " "$@")")"
115     fi
116    
117     # Add plugins
118     local haspppoa=false haspppoe=false
119     eval $(_get_array "plugins_${IFVAR}")
120     for i in "$@" ; do
121     set -- ${i}
122 uberlord 2621 case "$1" in
123 uberlord 2547 passwordfd) continue;;
124 uberlord 2622 pppoa) shift; set -- "pppoatm" "$@" ;;
125     pppoe) shift; set -- "rp-pppoe" "$@" ;;
126 uberlord 2547 capi) shift; set -- "capiplugin" "$@" ;;
127     esac
128 uberlord 2621 case "$1" in
129 uberlord 2547 rp-pppoe) haspppoe=true ;;
130     pppoatm) haspppoa=true ;;
131     esac
132     if [ "$1" = "rp-pppoe" ] || [ "$1" = "pppoatm" -a "${link}" != "/dev/null" ] ; then
133     opts="${opts} connect true"
134     set -- "$@" "${link}"
135     fi
136     opts="${opts} plugin $1.so"
137     shift
138     opts="${opts} $@"
139     done
140    
141     #Specialized stuff. Insert here actions particular to connection type (pppoe,pppoa,capi)
142     local insert_link_in_opts=1
143     if ${haspppoe} ; then
144     if [ ! -e /proc/net/pppoe ] ; then
145     # Load the PPPoE kernel module
146     if ! modprobe pppoe ; then
147     eerror "kernel does not support PPPoE"
148     return 1
149     fi
150     fi
151    
152     # Ensure that the link exists and is up
153     ( IFACE="${link}" ; _exists true && _up ) || return 1
154     insert_link_in_opts=0
155     fi
156    
157     if ${haspppoa} ; then
158     if [ ! -d /proc/net/atm ] ; then
159     # Load the PPPoA kernel module
160     if ! modprobe pppoatm ; then
161     eerror "kernel does not support PPPoATM"
162     return 1
163     fi
164     fi
165    
166     if [ "${link}" != "/dev/null" ] ; then
167     insert_link_in_opts=0
168     else
169     ewarn "WARNING: An [itf.]vpi.vci ATM address was expected in link_${IFVAR}"
170     fi
171    
172     fi
173 uberlord 2621 [ "${insert_link_in_opts}" = "0" ] || opts="${link} ${opts}"
174 uberlord 2547
175     ebegin "Starting pppd in ${IFACE}"
176     mark_service_inactive "${SVCNAME}"
177     if [ -n "${username}" ] \
178     && [ -n "${password}" -o -z "${passwordset}" ] ; then
179 uberlord 2625 printf "${password}" | sed -e 's/\\/\\\\/g' -e 's/"/\\"/g' | \
180 uberlord 2547 eval start-stop-daemon --start --exec /usr/sbin/pppd \
181     --pidfile "/var/run/ppp-${IFACE}.pid" -- "${opts}" >/dev/null
182     else
183     eval start-stop-daemon --start --exec /usr/sbin/pppd \
184     --pidfile "/var/run/ppp-${IFACE}.pid" -- "${opts}" >/dev/null
185     fi
186    
187 uberlord 2621 if ! eend $? "Failed to start PPP" ; then
188     mark_service_starting "net.${IFACE}"
189 uberlord 2547 return 1
190     fi
191    
192     if ${hasupdetach} ; then
193     _show_address
194     else
195     einfo "Backgrounding ..."
196     fi
197    
198     # pppd will re-call us when we bring the interface up
199     exit 0
200     }
201    
202     pppd_stop() {
203     ${IN_BACKGROUND} && return 0
204     local pidfile="/var/run/ppp-${IFACE}.pid"
205    
206     [ ! -s "${pidfile}" ] && return 0
207    
208     # Give pppd at least 30 seconds do die, #147490
209     einfo "Stopping pppd on ${IFACE}"
210     start-stop-daemon --stop --quiet --exec /usr/sbin/pppd \
211     --pidfile "${pidfile}" --retry 30
212     eend $?
213     }
214    
215     # vim: set ts=4 :

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