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use subjectAltName extension for IP addresses #1

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use subjectAltName extension for IP addresses #1

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32 changes: 29 additions & 3 deletions files/gen_cert.sh
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,8 @@ set -euo pipefail

SERVER_KEY=server-key.pem
TARGET_PATH=$1 #/etc/ssl/spice
LISTEN_TLS_IP=$2
LISTEN_TLS_HOSTNAME=$2
LISTEN_TLS_IP=$3

# creating a key for our ca
if [ ! -e ca-key.pem ]; then
Expand All @@ -20,11 +21,36 @@ if [ ! -e $SERVER_KEY ]; then
fi
# create a certificate signing request (csr)
if [ ! -e server-key.csr ]; then
openssl req -new -key $SERVER_KEY -out server-key.csr -subj "/C=SA/L=Saratov/O=BaseALT/CN=$LISTEN_TLS_IP"
openssl req -new -key $SERVER_KEY -out server-key.csr -extensions v3_req -config <(
cat <<-EOF
[req]
default_bits = 2048
prompt = no
default_md = sha256
req_extensions = v3_req
distinguished_name = dn

[ dn ]
C=SA
L=Saratov
O=BaseALT
OU=Testing Domain
emailAddress=testing@smb.basealt.ru
CN = ${LISTEN_TLS_HOSTNAME}

[ v3_req ]
subjectAltName = @alt_names

[ alt_names ]
DNS.0 = ${LISTEN_TLS_HOSTNAME}
IP.0 = ${LISTEN_TLS_IP}
EOF
)

fi
# signing our server certificate with this ca
if [ ! -e server-cert.pem ]; then
openssl x509 -req -days 1095 -in server-key.csr -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 -out server-cert.pem
openssl x509 -req -extfile <(printf "subjectAltName=DNS:${LISTEN_TLS_HOSTNAME},IP:${LISTEN_TLS_IP}") -days 1095 -in server-key.csr -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 -out server-cert.pem
fi

# now create a key that doesn't require a passphrase
Expand Down