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1 #!/bin/sh
2 #
3 #    tnlup - tunnel configuration script
4 #    Copyright (C) 1999, 2000 Arkadiusz Miƛkiewicz <misiek@pld-linux.org>
5 #
6 #    This program is free software; you can redistribute it and/or modify
7 #    it under the terms of the GNU General Public License as published by
8 #    the Free Software Foundation; either version 2 of the License, or
9 #    (at your option) any later version.
10 #
11 #    This program is distributed in the hope that it will be useful,
12 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
13 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 #    GNU General Public License for more details.
15 #
16 #    You should have received a copy of the GNU General Public License
17 #    along with this program; if not, write to the Free Software
18 #    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19 #
20 #    $Id$
21 #
22
23 . /etc/sysconfig/network
24 . /etc/rc.d/init.d/functions
25 . /lib/rc-scripts/functions.network
26
27 DEV=$1
28
29 [ -z "$DEV" ] && {
30         nls "Usage: %s <device name>" "tnlup" >&2
31         exit 1
32 }
33
34 TNLCONFIGS=$(LC_ALL=C ls /etc/sysconfig/interfaces/tnlcfg-* 2>/dev/null | grep -vE '~$')
35 TNLCONFIGS=$(grep -LE '^#!' $TNLCONFIGS)
36 CONFIG=$(grep -lE "^DEVICE=[\"\']*$DEV[\"\']*\$" $TNLCONFIGS)
37
38 if [ -z "$CONFIG" ]; then
39         CONFIG="$DEV"
40 fi
41
42 if false; then
43         [ -f "/etc/sysconfig/interfaces/$CONFIG" ] || CONFIG=tnlcfg-$CONFIG
44         [ -f "/etc/sysconfig/interfaces/$CONFIG" ] || {
45                 echo "usage: tnlup <device name>" >&2
46                 exit 1
47         }
48 fi
49
50 source_config
51
52 if [ "foo$2" = "fooboot" -a -n "${ONBOOT}" ] && is_no "${ONBOOT}"; then
53         exit
54 fi
55
56 case "${MODE}" in
57   sit|four)
58         is_no "${IPV6_NETWORKING}" && exit 0
59         is_no "${IPV6_TUNNELCONFIG}" && exit 0
60         [ "${MODE}" = "sit" ] && is_module "sit" && modprobe -s sit
61         [ "${MODE}" = "four" ] && is_module "fourtun" && modprobe -s fourtun
62         ;;
63   ipip)
64         is_no "${IPV4_NETWORKING}" && exit 0
65         is_module "ipip" && modprobe -s ipip
66         ;;
67   gre)
68         is_no "${IPV4_NETWORKING}" && exit 0
69         is_module "ip_gre" && modprobe -s ip_gre
70         ;;
71   ipxip|ipipx)
72         is_no "${IPX}" && exit 0
73         ;;
74 esac
75
76 RESULT=0
77 [ -z "${LOCALADDR}" ] && LOCALADDR=any
78 [ -z "${REMOTEADDR}" ] && REMOTEADDR=any
79 [ -n "${TTL}" ] && TTL="ttl ${TTL}"
80 [ -n "${TOS}" ] && TOS="tos ${TOS}"
81 [ -n "${BIND_DEV}" ] && BIND_DEV="dev ${BIND_DEV}"
82 [ -n "${PRIORITY}" ] && PRIORITY="priority ${PRIORITY}"
83 [ -n "${HOPLIMIT}" ] && HOPLIMIT="hoplimit ${HOPLIMIT}"
84 [ -n "${ENCAPLIMIT}" ] && ENCAPLIMIT="encaplimit ${ENCAPLIMIT}"
85
86 if is_yes "${SEQ}"; then
87         SEQ=seq
88 else
89         is_yes "${ISEQ}" && SEQ=iseq
90         is_yes "${OSEQ}" && SEQ="${SEQ} oseq"
91 fi
92
93 if is_yes "${CSUM}"; then
94         CSUM=csum
95 else
96         is_yes "${ICSUM}" && CSUM=icsum
97         is_yes "${ICSUM}" && CSUM="${SEQ} ocsum"
98 fi
99
100 is_yes "${ISEQ}" && ISEQ=iseq
101
102 [ -z "${PMTUDISC}" -a "${TTL}" != "0" -a "${TTL}" != "inherit" ] && PMTUDISC=yes
103
104 if is_yes "${PMTUDISC}"; then
105         PMTUDISC=pmtudisc
106 elif is_no "${PMTUDISC}"; then
107         PMTUDISC=nopmtudisc
108 fi
109
110 if [ -n "${KEY}" ]; then
111         IKEY=""
112         OKEY=""
113 fi
114
115 case "${MODE}" in
116   ipip|sit)
117         ip tunnel add ${DEVICE} mode ${MODE} local ${LOCALADDR} \
118                 remote ${REMOTEADDR} ${TTL} ${TOS} ${PMTUDISC} ${BIND_DEV}
119         RESULT=$?
120         ;;
121   gre)
122         ip tunnel add ${DEVICE} mode ${MODE} local ${LOCALADDR} \
123                 remote ${REMOTEADDR} ${TTL} ${TOS} ${PMTUDISC} ${BIND_DEV} \
124                 ${CSUM} ${ISEQ} ${KEY} ${IKEY} ${OKEY}
125         RESULT=$?
126         ;;
127   fourtun)
128         fourcfg add ${DEVICE} saddr ${LOCALADDR} daddr ${REMOTEADDR} \
129                 ${PRIORITY} ${HOPLIMIT} ${ENCAPLIMIT}
130         RESULT=$?
131         ;;
132   ipxip|ipipx)
133         ;;
134 esac
135
136 exit $RESULT
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