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Makefile
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.DELETE_ON_ERROR:
BUILD_DIR := .
STEP_VERSION := 0.28.2
STEP_BIN := $(BUILD_DIR)/data/step_$(STEP_VERSION)/bin/step
CONFIGS_CIPHER_DIR := configs-cipher
CONFIGS_PLAIN_DIR := configs-plain
VPN_NAME := confinet-pfext01-step
NETWORKMANAGER_PACKAGE := network-manager-openvpn-gnome
NSS_PACKAGE := libnss3-tools
CHECKMARK=\033[0;32m✔\033[0m
QUESTIONMARK=\033[1;41m?\033[0m
DOT_STEP_DIR=data/user
TLS_CERTS_DIR=$(DOT_STEP_DIR)/tls_user_certs
SSH_CERTS_DIR=$(DOT_STEP_DIR)/ssh_user_certs
export STEPPATH=$(BUILD_DIR)/$(DOT_STEP_DIR)
.PHONY: all
all: $(STEP_BIN) git-pull add-ssh-certificate-to-agent add-user-certificate-to-browsers add-vpn-config-to-system
.PHONY: git-pull
git-pull:
git pull
data/step-$(STEP_VERSION).tgz:
@echo -n "$(CHECKMARK) Downloading $(BUILD_DIR)/$@ ... "
@rm -fr $(STEP_BIN)*
@wget -q -O $(BUILD_DIR)/$@ https://github.com/smallstep/cli/releases/download/v$(STEP_VERSION)/step_linux_$(STEP_VERSION)_amd64.tar.gz
@tar -C $(BUILD_DIR)/data -xf $(BUILD_DIR)/$@
@echo "done."
$(STEP_BIN): data/step-$(STEP_VERSION).tgz
@echo "$(CHECKMARK) smallstep/cli version used: $(STEP_VERSION)"
$(CONFIGS_PLAIN_DIR)/files.tar: $(CONFIGS_CIPHER_DIR)/files.tar.jwe
@echo "$(QUESTIONMARK) $@ missing, trying to decrypt it"
@$(STEP_BIN) crypto jwe decrypt \
< $(BUILD_DIR)/$(CONFIGS_CIPHER_DIR)/files.tar.jwe \
> $(BUILD_DIR)/$@
@echo "$(CHECKMARK) Password ok"
@tar x \
--directory $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/ \
--file $(BUILD_DIR)/$@
$(DOT_STEP_DIR)/config/defaults.json: $(STEP_BIN) $(CONFIGS_PLAIN_DIR)/files.tar
@echo -n "$(CHECKMARK) "
@$(STEP_BIN) ca bootstrap --force \
--ca-url $(shell cat $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/ca-url) \
--fingerprint $(shell cat $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/ca-fingerprint)
$(DOT_STEP_DIR)/user_email:
@mkdir -p $(DOT_STEP_DIR)
@echo -n "$(QUESTIONMARK) "
@systemd-ask-password --echo "Identity missing, please insert your company e-mail:" > $(BUILD_DIR)/$@
$(DOT_STEP_DIR)/TLS_TOKEN: $(DOT_STEP_DIR)/config/defaults.json $(CONFIGS_PLAIN_DIR)/files.tar $(DOT_STEP_DIR)/user_email
@mkdir -p $(TLS_CERTS_DIR)
@echo "$(CHECKMARK) A token is required to generate the user certificate."
@echo -n "$(CHECKMARK) "
@$(STEP_BIN) oauth \
--oidc \
--bare \
--client-id $(shell cat $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/client-id) \
--client-secret $(shell cat $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/client-secret) \
--email $(shell cat $(BUILD_DIR)/$(DOT_STEP_DIR)/user_email) \
--prompt=select_account \
> $(BUILD_DIR)/$@
$(TLS_CERTS_DIR)/user.crt: $(DOT_STEP_DIR)/user_email $(DOT_STEP_DIR)/TLS_TOKEN
@$(STEP_BIN) ca certificate --force \
--token $(shell cat $(BUILD_DIR)/$(DOT_STEP_DIR)/TLS_TOKEN) \
$(shell cat $(BUILD_DIR)/$(DOT_STEP_DIR)/user_email) \
$(BUILD_DIR)/$@ \
$(BUILD_DIR)/$(patsubst %.crt,%.key,$@)
@$(STEP_BIN) certificate inspect --short $(BUILD_DIR)/$@ \
| tail -n1 \
| sed 's/\s\+to:\s\+//' \
| xargs date +%s -d \
> $(BUILD_DIR)/[email protected]
@openssl pkcs12 \
-passout pass: \
-inkey $(BUILD_DIR)/$(TLS_CERTS_DIR)/user.key \
-in $(BUILD_DIR)/$@ \
-export \
-out $(BUILD_DIR)/[email protected]
@echo "$(CHECKMARK) PKCS #12: $(BUILD_DIR)/[email protected]"
$(DOT_STEP_DIR)/SSH_TOKEN: $(DOT_STEP_DIR)/user_email $(TLS_CERTS_DIR)/user.crt
@mkdir -p $(SSH_CERTS_DIR)
@echo "$(CHECKMARK) A token is required to generate the ssh certificate."
@$(STEP_BIN) ca token \
$(shell cat $(BUILD_DIR)/$(DOT_STEP_DIR)/user_email) \
--ssh \
--provisioner "x5c-for-ssh" \
--x5c-cert $(BUILD_DIR)/$(TLS_CERTS_DIR)/user.crt \
--x5c-key $(BUILD_DIR)/$(TLS_CERTS_DIR)/user.key \
> $(BUILD_DIR)/$@
$(SSH_CERTS_DIR)/ssh_user_key-cert.pub: $(DOT_STEP_DIR)/user_email $(TLS_CERTS_DIR)/user.crt $(DOT_STEP_DIR)/SSH_TOKEN
@rm -f $(BUILD_DIR)/$(SSH_CERTS_DIR)/ssh_user_key*
@ssh-keygen \
-t ed25519 \
-N '' \
-f $(BUILD_DIR)/$(SSH_CERTS_DIR)/ssh_user_key \
> /dev/null
@echo "$(CHECKMARK) SSH private key: $(BUILD_DIR)/$(SSH_CERTS_DIR)/ssh_user_key"
@echo "$(CHECKMARK) SSH public key: $(BUILD_DIR)/$(SSH_CERTS_DIR)/ssh_user_key.pub"
@$(STEP_BIN) ssh certificate \
$(shell cat $(BUILD_DIR)/$(DOT_STEP_DIR)/user_email) \
$(BUILD_DIR)/$(SSH_CERTS_DIR)/ssh_user_key.pub \
--token "$(shell cat $(BUILD_DIR)/$(DOT_STEP_DIR)/SSH_TOKEN)" \
--sign
@rm $(BUILD_DIR)/$(DOT_STEP_DIR)/SSH_TOKEN
.PHONY: check-expiration
check-expiration:
@if [ $(shell date +%s) -ge $(shell cat $(BUILD_DIR)/$(TLS_CERTS_DIR)/user.crt.expiresAt 2> /dev/null || echo 0) ]; then \
ssh-add -d $(BUILD_DIR)/$(SSH_CERTS_DIR)/ssh_user_key &> /dev/null || true; \
rm -f $(BUILD_DIR)/$(TLS_CERTS_DIR)/* $(BUILD_DIR)/$(DOT_STEP_DIR)/TLS_TOKEN; \
echo "$(CHECKMARK) User certificates expired: removed"; \
else \
echo "$(CHECKMARK) User certificates still valid"; \
fi;
.PHONY: create-ssh-certificate
create-ssh-certificate: check-expiration $(SSH_CERTS_DIR)/ssh_user_key-cert.pub
.PHONY: add-ssh-certificate-to-agent
add-ssh-certificate-to-agent: check-expiration $(SSH_CERTS_DIR)/ssh_user_key-cert.pub
@ssh-add $(BUILD_DIR)/$(SSH_CERTS_DIR)/ssh_user_key
.PHONY: create-user-certificate
create-user-certificate: check-expiration $(TLS_CERTS_DIR)/user.crt
.PHONY: check-nss
check-nss:
@if [ -z "$(shell dpkg -l | grep $(NSS_PACKAGE) 2> /dev/null)" ]; then \
echo "$(QUESTIONMARK) Package $(NSS_PACKAGE) is required to add certificates to browsers but is missing from your system"; \
echo -n "$(QUESTIONMARK) Do you want to run \`sudo apt install $(NSS_PACKAGE)\` to install it? [y/N] " && read ans && [ $${ans:-N} != y ] && echo "Aborted" && exit 1; \
sudo apt install $(NSS_PACKAGE); \
fi;
@echo "$(CHECKMARK) Package \`$(NSS_PACKAGE)\` present in the system"; \
.PHONY: add-user-certificate-to-browsers
add-user-certificate-to-browsers: check-nss check-expiration $(TLS_CERTS_DIR)/user.crt
@$(foreach profile,$(shell ls $(HOME)/.mozilla/firefox/*/cert9.db $(HOME)/snap/firefox/common/.mozilla/firefox/*/cert9.db $(HOME)/.pki/nssdb/cert9.db 2> /dev/null), \
certutil -D -d $(shell dirname "$(profile)")/ -n $(shell cat $(BUILD_DIR)/$(DOT_STEP_DIR)/user_email) > /dev/null; \
pk12util -i $(BUILD_DIR)/$(TLS_CERTS_DIR)/user.crt.p12 -d $(shell dirname "$(profile)")/ -W "" > /dev/null; \
echo "$(CHECKMARK) User certificate added to: $(profile)"; \
)
$(DOT_STEP_DIR)/$(VPN_NAME).ovpn: $(DOT_STEP_DIR)/config/defaults.json check-expiration $(TLS_CERTS_DIR)/user.crt $(CONFIGS_PLAIN_DIR)/files.tar
@cp -a $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/pfext01-step.ovpn $(BUILD_DIR)/[email protected]
@echo "<ca>" >> $(BUILD_DIR)/[email protected]
@cat $(BUILD_DIR)/$(DOT_STEP_DIR)/certs/root_ca.crt >> $(BUILD_DIR)/[email protected]
@echo "</ca>" >> $(BUILD_DIR)/[email protected]
@echo "<cert>" >> $(BUILD_DIR)/[email protected]
@cat $(BUILD_DIR)/$(TLS_CERTS_DIR)/user.crt >> $(BUILD_DIR)/[email protected]
@echo "</cert>" >> $(BUILD_DIR)/[email protected]
@echo "<key>" >> $(BUILD_DIR)/[email protected]
@cat $(BUILD_DIR)/$(TLS_CERTS_DIR)/user.key >> $(BUILD_DIR)/[email protected]
@echo "</key>" >> $(BUILD_DIR)/[email protected]
@mv $(BUILD_DIR)/[email protected] $(BUILD_DIR)/$@
@echo "$(CHECKMARK) OpenVPN config: $(BUILD_DIR)/$@"
.PHONY: check-networkmanager
check-networkmanager:
@if [ -z "$(shell dpkg -l | grep $(NETWORKMANAGER_PACKAGE) 2> /dev/null)" ]; then \
echo "$(QUESTIONMARK) Package $(NETWORKMANAGER_PACKAGE) is required to add OpenVPN config to system but is missing from your system"; \
echo -n "$(QUESTIONMARK) Do you want to run \`sudo apt install $(NETWORKMANAGER_PACKAGE)\` to install it? [y/N] " && read ans && [ $${ans:-N} != y ] && echo "Aborted" && exit 1; \
sudo apt install $(NETWORKMANAGER_PACKAGE); \
fi;
@echo "$(CHECKMARK) Package \`$(NETWORKMANAGER_PACKAGE)\` present in the system"; \
.PHONY: create-vpn-config
create-vpn-config: $(DOT_STEP_DIR)/$(VPN_NAME).ovpn
.PHONY: add-vpn-config-to-system
add-vpn-config-to-system: $(DOT_STEP_DIR)/$(VPN_NAME).ovpn check-networkmanager
@nmcli connection delete $(VPN_NAME) > /dev/null 2> /dev/null || true
@echo -n "$(CHECKMARK) "
@nmcli connection import type openvpn file $(BUILD_DIR)/$(DOT_STEP_DIR)/$(VPN_NAME).ovpn
@-echo "set ipv4.never-default yes\nsave\nquit" \
| nmcli connection edit $(VPN_NAME) > /dev/null
@echo "$(CHECKMARK) Type \`nmcli connection up $(VPN_NAME)\` to start the VPN from cli"
.PHONY: encrypt-configs
encrypt-configs: data/step-$(STEP_VERSION).tgz
tar cvp \
--directory $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/ \
--file $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/files.tar \
--exclude ./files.tar \
--exclude ./.gitignore \
./
$(STEP_BIN) crypto jwe encrypt --alg PBES2-HS512+A256KW \
< $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/files.tar \
> $(BUILD_DIR)/$(CONFIGS_CIPHER_DIR)/files.tar.jwe
rm $(BUILD_DIR)/$(CONFIGS_PLAIN_DIR)/files.tar
.PHONY: clean
clean:
rm -fr $(BUILD_DIR)/data/*