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Make OpenWRT work, save nonce in addteam

This commit is contained in:
Neale Pickett 2012-05-18 22:03:53 -06:00
parent 60d7281342
commit c11b07767e
2 changed files with 12 additions and 3 deletions
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10
doc/openwrt/README
View File

@ -20,7 +20,13 @@ Instructions for setting up OpenWRT
After installing OpenWRT: After installing OpenWRT:
* Change the root password * Change the root password
* Install the kmod-ipv6, radvd, and luci-app-radvd packages * Install the following packages:
ip6tables
kmod-ip6tables
kmod-ipv6
libip6tc
luci-app-radvd
radvd
* Configure the LAN interface as 10.0.0.1/16 and * Configure the LAN interface as 10.0.0.1/16 and
fd84:b410:3441::1/64 fd84:b410:3441::1/64
* Tell DHCP to begin at 257 after the base IP: this will assure * Tell DHCP to begin at 257 after the base IP: this will assure
@ -28,7 +34,7 @@ After installing OpenWRT:
* Disable router solicitations on LAN * Disable router solicitations on LAN
* Enable WPA2, with the password "correct horse battery staple" * Enable WPA2, with the password "correct horse battery staple"
* Turn on router advertisements (under radvd) on LAN * Turn on router advertisements (under radvd) on LAN
* Enable prefix fd84:b410:3441::1/54 under radvd * Enable prefix fd84:b410:3441::1/64 under radvd
This should be sufficient to bring up the router for running the This should be sufficient to bring up the router for running the
contest. If you want to get fancy, you can scp the files in contest. If you want to get fancy, you can scp the files in

5
packages/mcp/bin/addteam
View File

@ -20,6 +20,9 @@ www=${CTF_BASE:-/var/www}
mkdir -p $base/teams/names mkdir -p $base/teams/names
mkdir -p $base/teams/colors mkdir -p $base/teams/colors
[ -f $base/teams/nonce ] || dd if=/dev/urandom count=1 | md5sum | cut -b 1-8 > $base/teams/nonce
nonce=$(cat $base/teams/nonce)
# Assign a color. I spent weeks selecting a color pallette that # Assign a color. I spent weeks selecting a color pallette that
# wouldn't be hell on people with protanopia. Please don't change these # wouldn't be hell on people with protanopia. Please don't change these
# colors. # colors.
@ -45,7 +48,7 @@ esac
# Compute hash of team name; they'll use this for everything in the # Compute hash of team name; they'll use this for everything in the
# contest instead of their team name, which makes stuff much easier on # contest instead of their team name, which makes stuff much easier on
# me since all team hashes are in the set /[0-9a-f]{8}/. # me since all team hashes are in the set /[0-9a-f]{8}/.
hash=$(dd if=/dev/urandom count=1 2>/dev/null | md5sum | cut -b 1-8) hash=$(printf "%s:%s" $nonce "$1" | md5sum | cut -b 1-8)
echo "$1" > $base/teams/names/$hash echo "$1" > $base/teams/names/$hash
echo "$color" > $base/teams/colors/$hash echo "$color" > $base/teams/colors/$hash