~mdw / tripe / blame
| Commit | Line | Data |
|---|---|---|
| a62f8e8a MW |
1 | #! /bin/sh |
| 2 | ### | |
| 3 | ### TrIPE interface initialization script | |
| 4 | ### suitable for Linux; other operating systems probably want something | |
| 5 | ### similar | |
| 6 | ||
| 7 | ###----- Licensing notica --------------------------------------------------- | |
| 8 | ### | |
| 9 | ### Redistribution, modification and use of this file is permitted without | |
| 10 | ### limitation. | |
| 11 | ### | |
| 12 | ### This file is distributed in the hope that it will be useful, | |
| 13 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
| 15 | ||
| 16 | set -e | |
| 17 | ||
| 18 | : ${bindir=@bindir@} | |
| 19 | : ${tripectl=$bindir/tripectl} | |
| 20 | PATH=/usr/bin:/usr/sbin:/bin:/sbin:$bindir | |
| 21 | export PATH TRIPEDIR | |
| 22 | ||
| 23 | ###-------------------------------------------------------------------------- | |
| 24 | ### Collect arguments. | |
| 25 | ||
| 26 | ## Collect the simple arguments. | |
| 27 | if [ $# -lt 3 ]; then | |
| 28 | echo >&2 "usage: $0 PEER IFNAME ADDR..."; exit 1 | |
| 29 | fi | |
| 30 | peer=$1 ifname=$2 family=$3; shift 3 | |
| 31 | ||
| 32 | ## Parse the address family. | |
| 33 | case "$family,$#" in | |
| 34 | INET,1) addr=$1 port=4070 ;; | |
| 35 | INET,2) addr=$1 port=$2 ;; | |
| 36 | INET,*) echo >&2 "$0: bad INET address"; exit 1 ;; | |
| 37 | *) echo >&2 "$0: unknown address family $family"; exit 1 ;; | |
| 38 | esac | |
| 39 | ||
| 40 | ###-------------------------------------------------------------------------- | |
| 41 | ### Set the interface name. | |
| 42 | ||
| 43 | case "${P_IFNAME+set}" in | |
| 44 | set) | |
| 45 | ip link set "$ifname" name "$P_IFNAME" | |
| 46 | ifname=$P_IFNAME | |
| 47 | $tripectl setifname "$peer" "$ifname" | |
| 48 | ;; | |
| 49 | esac | |
| 50 | ||
| 51 | ###-------------------------------------------------------------------------- | |
| 52 | ### Configure the point-to-point link. | |
| 53 | ||
| 54 | ifup=no | |
| 55 | case "${P_LADDR+set},${P_RADDR+set}" in | |
| 56 | set,set) | |
| 57 | case "${P_MTU+set}" in | |
| 58 | set) mtu=$P_MTU;; | |
| 59 | *) | |
| 60 | pathmtu=$(pathmtu "$addr") | |
| 61 | mtu=$(expr "$pathmtu" - 33 - $A_CIPHER_BLKSZ - $A_MAC_TAGSZ) | |
| 62 | ;; | |
| 63 | esac | |
| 64 | ifconfig "$ifname" "$P_LADDR" pointopoint "$P_RADDR" up mtu "$mtu" | |
| 65 | ifup=yes | |
| 66 | ;; | |
| 67 | esac | |
| 68 | ||
| 69 | ###-------------------------------------------------------------------------- | |
| 70 | ### Set up routing. | |
| 71 | ||
| 72 | case "$ifup,${P_NETS+set}" in | |
| 73 | yes,set) | |
| 74 | for net in $P_NETS; do | |
| 75 | route add -net $net gw "$P_RADDR" dev "$ifname" metric 2 | |
| 76 | done | |
| 77 | ;; | |
| 78 | esac | |
| 79 | ||
| 80 | ###-------------------------------------------------------------------------- | |
| 81 | ### Maybe invoke a follow-on script. | |
| 82 | ||
| 83 | case "${P_IFUPEXTRA+set}" in | |
| 84 | set) | |
| 85 | eval "$P_IFUPEXTRA" | |
| 86 | ;; | |
| 87 | esac | |
| 88 | ||
| 89 | ###-------------------------------------------------------------------------- | |
| 90 | ### Issue a notification that we've won. | |
| 91 | ||
| 92 | $tripectl notify tripe-ifup configured "$peer" | |
| 93 | ||
| 94 | ###----- That's all, folks -------------------------------------------------- |