cli-tests: add t_v1_policy_fs_keyring

Test using v1 encryption policies (deprecated) with
use_fs_keyring_for_v1_policies = true.

cli-tests/t_v1_policy_fs_keyring.out

@@ -0,0 +1,75 @@
+
+# Enabling v1 policies with fs keyring
+
+# Trying to encrypt directory as user
+[ERROR] fscrypt encrypt: root is required to add/remove v1 encryption policy
+                         keys to/from filesystem
+
+Either this command should be run as root, or you should set
+'"use_fs_keyring_for_v1_policies": false' in /etc/fscrypt.conf, or you should
+re-create your encrypted directories using v2 encryption policies rather than v1
+(this requires setting '"policy_version": "2"' in the "options" section of
+/etc/fscrypt.conf).
+[ERROR] fscrypt status: get encryption policy MNT/dir: file
+                        or directory not encrypted
+
+# Encrypt directory as user with --skip-unlock
+"MNT/dir" is encrypted with fscrypt.
+
+Policy:   desc1
+Options:  padding:32 contents:AES_256_XTS filenames:AES_256_CTS policy_version:1 
+Unlocked: No
+
+Protected with 1 protector:
+PROTECTOR         LINKED  DESCRIPTION
+desc2  No      custom protector "aoeu"
+mkdir: cannot create directory ‘MNT/dir/subdir’: Required key not available
+
+# Try to unlock directory as user
+[ERROR] fscrypt unlock: root is required to add/remove v1 encryption policy keys
+                        to/from filesystem
+
+Either this command should be run as root, or you should set
+'"use_fs_keyring_for_v1_policies": false' in /etc/fscrypt.conf, or you should
+re-create your encrypted directories using v2 encryption policies rather than v1
+(this requires setting '"policy_version": "2"' in the "options" section of
+/etc/fscrypt.conf).
+
+# Unlock directory as root
+Enter custom passphrase for protector "aoeu": "MNT/dir" is now unlocked and ready for use.
+"MNT/dir" is encrypted with fscrypt.
+
+Policy:   desc1
+Options:  padding:32 contents:AES_256_XTS filenames:AES_256_CTS policy_version:1 
+Unlocked: Yes
+
+Protected with 1 protector:
+PROTECTOR         LINKED  DESCRIPTION
+desc2  No      custom protector "aoeu"
+
+# Try to lock directory as user
+[ERROR] fscrypt lock: root is required to add/remove v1 encryption policy keys
+                      to/from filesystem
+
+Either this command should be run as root, or you should set
+'"use_fs_keyring_for_v1_policies": false' in /etc/fscrypt.conf, or you should
+re-create your encrypted directories using v2 encryption policies rather than v1
+(this requires setting '"policy_version": "2"' in the "options" section of
+/etc/fscrypt.conf).
+
+# Lock directory as root
+"MNT/dir" is now locked.
+cat: MNT/dir/file: No such file or directory
+"MNT/dir" is encrypted with fscrypt.
+
+Policy:   desc1
+Options:  padding:32 contents:AES_256_XTS filenames:AES_256_CTS policy_version:1 
+Unlocked: No
+
+Protected with 1 protector:
+PROTECTOR         LINKED  DESCRIPTION
+desc2  No      custom protector "aoeu"
+
+# User can access file when directory is unlocked by root
+Enter custom passphrase for protector "aoeu": "MNT/dir" is now unlocked and ready for use.
+contents

cli-tests/t_v1_policy_fs_keyring.sh

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+#!/bin/bash
+
+# Test using v1 encryption policies (deprecated) with
+# use_fs_keyring_for_v1_policies = true.
+
+# This works similar to v2 policies, except locking and unlocking (including
+# 'fscrypt encrypt' without --skip-unlock) will only work as root.
+
+cd "$(dirname "$0")"
+. common.sh
+
+# Ensure that the session keyring is not used.
+_setup_session_keyring
+keyctl clear @s
+keyctl setperm @s 0x08000000 # KEY_POS_SEARCH only
+
+_print_header "Enabling v1 policies with fs keyring"
+sed -e 's/"use_fs_keyring_for_v1_policies": false/"use_fs_keyring_for_v1_policies": true/' \
+    -e 's/"policy_version": "2"/"policy_version": "1"/' \
+    -i "$FSCRYPT_CONF"
+
+dir="$MNT/dir"
+mkdir "$dir"
+chown "$TEST_USER" "$dir"
+
+_print_header "Trying to encrypt directory as user"
+_user_do_and_expect_failure "echo hunter2 | fscrypt encrypt --quiet --name=aoeu '$dir'"
+_expect_failure "fscrypt status '$dir'"
+
+_print_header "Encrypt directory as user with --skip-unlock"
+_user_do "echo hunter2 | fscrypt encrypt --quiet --name=aoeu --skip-unlock '$dir'"
+fscrypt status "$dir"
+_expect_failure "mkdir '$dir/subdir'"
+
+_print_header "Try to unlock directory as user"
+_user_do_and_expect_failure "echo hunter2 | fscrypt unlock '$dir'"
+
+_print_header "Unlock directory as root"
+echo hunter2 | fscrypt unlock "$dir"
+mkdir "$dir/subdir"
+echo contents > "$dir/file"
+fscrypt status "$dir"
+
+_print_header "Try to lock directory as user"
+_user_do_and_expect_failure "fscrypt lock '$dir'"
+
+_print_header "Lock directory as root"
+fscrypt lock "$dir"
+_expect_failure "cat '$dir/file'"
+fscrypt status "$dir"
+
+_print_header "User can access file when directory is unlocked by root"
+echo hunter2 | fscrypt unlock "$dir"
+_user_do "cat '$dir/file'"