diff options
Diffstat (limited to 'roles/common/files')
| -rwxr-xr-x | roles/common/files/usr/local/bin/genkeypair.sh | 80 |
1 files changed, 52 insertions, 28 deletions
diff --git a/roles/common/files/usr/local/bin/genkeypair.sh b/roles/common/files/usr/local/bin/genkeypair.sh index 2af24cf..6c75fa4 100755 --- a/roles/common/files/usr/local/bin/genkeypair.sh +++ b/roles/common/files/usr/local/bin/genkeypair.sh @@ -25,11 +25,14 @@ PATH=/usr/bin:/bin # Default values type=rsa bits= -hash=sha1 +hash= force= +x509=-x509 +config= pubkey=pubkey.pem privkey=privkey.pem +dns= usage() { cat >&2 <<- EOF @@ -39,9 +42,11 @@ usage() { Options: -t type: key type (default: rsa) -b bits: key length or EC curve (default: 2048 for RSA, 1024 for DSA, secp224r1 for ECDSA) - -h digest: digest algorithm (default: sha1) - -n CN: common name (default: \$(hostname --fqdn) + -h digest: digest algorithm + --dns CN: common name (default: \$(hostname --fqdn); can be repeated -f force: overwrite key files if they exist + --csr: generate a Certificate Signing Request instead + --config: configuration file --pubkey: public key file (default: pubkey.pem) --privkey: private key file (default: privkey.pem; created with og-rwx) @@ -52,7 +57,6 @@ usage() { EOF } -name=$(hostname --fqdn) while [ $# -gt 0 ]; do case "$1" in -t) shift; type="$1";; @@ -64,12 +68,14 @@ while [ $# -gt 0 ]; do -h) shift; hash="$1";; -h*) hash="${1#-h}";; - -n) shift; name="$1";; - -n*) name="${1#-n}";; -f) force=1;; - --pubkey=*) pubkey="${1#--pubkey=}";; - --privkey=*) privkey="${1#--privkey=}";; + --pubkey=?*) pubkey="${1#--pubkey=}";; + --privkey=?*) privkey="${1#--privkey=}";; + + --csr) x509=;; + --dns=?*) dns="${dns:+$dns,}${1#--dns=}";; + --config=?*) dns="${1#--config=}";; --help) usage; exit;; *) echo "Unrecognized argument: $1" >&2; exit 2 @@ -79,6 +85,8 @@ done rand=/dev/urandom case "$type" in + # XXX: genrsa and dsaparam have been deprecated in favor of genpkey. + # genpkey can also create explicit EC parameters, but not named. rsa) genkey=genrsa; genkeyargs="-f4 ${bits:-2048}";; dsa) genkey=dsaparam; genkeyargs="-noout -genkey ${bits:-1024}";; # See 'openssl ecparam -list_curves' for the list of supported @@ -91,38 +99,54 @@ case "$type" in esac case "$hash" in - md5|rmd160|sha1|sha224|sha256|sha384|sha512) ;; + md5|rmd160|sha1|sha224|sha256|sha384|sha512|'') ;; *) echo "Invalid digest algorithm: $hash" >&2; exit 2; esac -[ ${#name} -le 64 ] || { echo "Hostname too long: $name" >&2; exit 2; } +[ "$dns" ] || dns="$(hostname --fqdn)" +cn="${dns%%,*}" +[ ${#cn} -le 64 ] || { echo "CommonName too long: $cn" >&2; exit 2; } + for file in "$pubkey" "$privkey"; do [ -z "$force" -a -s "$file" ] || continue echo "Error: File exists: $file" >&2 exit 1 done -config=$(mktemp) || exit 2 -trap 'rm -f "$config"' EXIT -# see /usr/share/ssl-cert/ssleay.cnf -cat >"$config" <<- EOF - [ req ] - distinguished_name = req_distinguished_name - prompt = no - policy = policy_anything - req_extensions = v3_req - x509_extensions = v3_req - - [ req_distinguished_name ] - commonName = $name - - [ v3_req ] - basicConstraints = critical, CA:FALSE -EOF +if [ -z "$config" ]; then + config=$(mktemp) || exit 2 + trap 'rm -f "$config"' EXIT + + names= + until [ "$dns" = "${dns#*,}" ]; do + names=", DNS:${dns##*,}$names" + dns="${dns%,*}" + done + + # see /usr/share/ssl-cert/ssleay.cnf + cat >"$config" <<- EOF + [ req ] + distinguished_name = req_distinguished_name + prompt = no + policy = policy_anything + req_extensions = v3_req + x509_extensions = v3_req + default_days = 3650 + + [ req_distinguished_name ] + countryName = SE + organizationName = Fripost + commonName = $cn + + [ v3_req ] + subjectAltName = email:admin@fripost.org, DNS:$cn$names + basicConstraints = critical, CA:FALSE + EOF +fi # Ensure "$privkey" is created with umask 0077 mv "$(mktemp)" "$privkey" || exit 2 chmod og-rwx "$privkey" || exit 2 openssl $genkey -rand /dev/urandom $genkeyargs >"$privkey" || exit 2 -openssl req -config "$config" -new -x509 -days 3650 -"$hash" -key "$privkey" >"$pubkey" || exit 2 +openssl req -config "$config" -new $x509 ${hash:+-$hash} -key "$privkey" >"$pubkey" || exit 2 |