dtrfs/init_functions.sh

72 lines
2.0 KiB
Bash

#!/bin/bash
echo_blue() {
echo -e "\033[34m$1\033[0m"
}
echo_red() {
echo -e "\033[0;31m$1\033[0m"
}
load_modules() {
cat /load_modules.sh | bash
}
create_mounts() {
mount -t proc proc /proc -o nosuid,noexec,nodev
mount -t sysfs sys /sys -o nosuid,noexec,nodev
mount -t devtmpfs dev /dev -o mode=0755,nosuid
mount -t tmpfs run /run -o nosuid,nodev,mode=0755
mkdir -m755 /run/initramfs
if [ -e /sys/firmware/efi ]; then
mount -t efivarfs efivarfs /sys/firmware/efi/efivars -o nosuid,nodev,noexec
fi
# Setup /dev symlinks
if [ -e /proc/kcore ]; then
ln -sfT /proc/kcore /dev/core
fi
ln -sfT /proc/self/fd /dev/fd
ln -sfT /proc/self/fd/0 /dev/stdin
ln -sfT /proc/self/fd/1 /dev/stdout
ln -sfT /proc/self/fd/2 /dev/stderr
}
create_certs() {
cert_dir="/tmp/certs"
key="$cert_dir/guest_api.key"
cert="$cert_dir/guest_api.crt"
subject="/C=W3/O=DeTEE/OU=COCO/CN=guest-api"
mkdir -p "$cert_dir"
openssl genpkey -algorithm RSA -out "$key" \
-pkeyopt rsa_keygen_bits:4096 2>/dev/null
openssl req -x509 -new \
-key "$key" -out "$cert" \
-days 365 -subj "$subject" 2>/dev/null
}
# expects kernel param in this format: detee_net=192.168.122.140_24_192.168.122.1_1.1.1.1
setup_network() {
local settings='' ip_addr='' mask='' cidr='' gateway='' nameserver=''
settings=$(cat /proc/cmdline | grep -oE 'detee_net=[0-9a-z\_\:\.]+' | cut -d '=' -f2)
# TODO: replace with exit 0 when you are ready to force a kernel panic
[[ -z "$settings" ]] && return 0
settings="${settings#detee_net=}"
ip_addr="$( echo ${settings} | cut -d'_' -f1 )"
mask="$( echo ${settings} | cut -d'_' -f2 )"
cidr="${ip_addr}/${mask}"
gateway="$( echo ${settings} | cut -d'_' -f4 )"
nameserver="$( echo ${settings} | cut -d'_' -f5 )"
ip addr add $cidr dev eth0
ip link set eth0 up
ip route add default via $gateway
echo nameserver $nameserver > /etc/resolv.conf
}
mount_root() {
mkdir /mnt
mount /dev/vda3 /mnt
}