1386 lines
56 KiB
Diff
1386 lines
56 KiB
Diff
From 3b68aff3b7b1dc567ef6721a269c2d4e054b729f Mon Sep 17 00:00:00 2001
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From: Emanuele Giuseppe Esposito <eesposit@redhat.com>
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Date: Mon, 9 Aug 2021 23:41:44 +0200
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Subject: [PATCH] Stop copying ssh system keys and check folder permissions
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(#956)
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RH-Author: Emanuele Giuseppe Esposito <eesposit@redhat.com>
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RH-MergeRequest: 28: Stop copying ssh system keys and check folder permissions (#956)
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RH-Commit: [1/1] 7cada613be82f2f525ee56b86ef9f71edf40d2ef (eesposit/cloud-init)
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RH-Bugzilla: 1862967
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Eduardo Otubo <otubo@redhat.com>
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TESTED: By me and QA
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BREW: 38818284
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This is a continuation of previous MR 25 and upstream PR #937.
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There were still issues when using non-standard file paths like
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/etc/ssh/userkeys/%u or /etc/ssh/authorized_keys, and the choice
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of storing the keys of all authorized_keys files into a single
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one was not ideal. This fix modifies cloudinit to support
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all different cases of authorized_keys file locations, and
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picks a user-specific file where to copy the new keys that
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complies with ssh permissions.
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commit 00dbaf1e9ab0e59d81662f0f3561897bef499a3f
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Author: Emanuele Giuseppe Esposito <eesposit@redhat.com>
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Date: Mon Aug 9 16:49:56 2021 +0200
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Stop copying ssh system keys and check folder permissions (#956)
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In /etc/ssh/sshd_config, it is possible to define a custom
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authorized_keys file that will contain the keys allowed to access the
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machine via the AuthorizedKeysFile option. Cloudinit is able to add
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user-specific keys to the existing ones, but we need to be careful on
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which of the authorized_keys files listed to pick.
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Chosing a file that is shared by all user will cause security
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issues, because the owner of that key can then access also other users.
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We therefore pick an authorized_keys file only if it satisfies the
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following conditions:
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1. it is not a "global" file, ie it must be defined in
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AuthorizedKeysFile with %u, %h or be in /home/<user>. This avoids
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security issues.
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2. it must comply with ssh permission requirements, otherwise the ssh
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agent won't use that file.
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If it doesn't meet either of those conditions, write to
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~/.ssh/authorized_keys
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We also need to consider the case when the chosen authorized_keys file
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does not exist. In this case, the existing behavior of cloud-init is
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to create the new file. We therefore need to be sure that the file
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complies with ssh permissions too, by setting:
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- the actual file to permission 600, and owned by the user
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- the directories in the path that do not exist must be root owned and
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with permission 755.
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Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
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---
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cloudinit/ssh_util.py | 133 ++++-
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cloudinit/util.py | 51 +-
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tests/unittests/test_sshutil.py | 952 +++++++++++++++++++++++++-------
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3 files changed, 920 insertions(+), 216 deletions(-)
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diff --git a/cloudinit/ssh_util.py b/cloudinit/ssh_util.py
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index 89057262..b8a3c8f7 100644
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--- a/cloudinit/ssh_util.py
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+++ b/cloudinit/ssh_util.py
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@@ -249,6 +249,113 @@ def render_authorizedkeysfile_paths(value, homedir, username):
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return rendered
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+# Inspired from safe_path() in openssh source code (misc.c).
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+def check_permissions(username, current_path, full_path, is_file, strictmodes):
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+ """Check if the file/folder in @current_path has the right permissions.
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+
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+ We need to check that:
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+ 1. If StrictMode is enabled, the owner is either root or the user
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+ 2. the user can access the file/folder, otherwise ssh won't use it
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+ 3. If StrictMode is enabled, no write permission is given to group
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+ and world users (022)
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+ """
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+
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+ # group/world can only execute the folder (access)
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+ minimal_permissions = 0o711
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+ if is_file:
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+ # group/world can only read the file
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+ minimal_permissions = 0o644
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+
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+ # 1. owner must be either root or the user itself
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+ owner = util.get_owner(current_path)
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+ if strictmodes and owner != username and owner != "root":
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+ LOG.debug("Path %s in %s must be own by user %s or"
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+ " by root, but instead is own by %s. Ignoring key.",
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+ current_path, full_path, username, owner)
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+ return False
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+
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+ parent_permission = util.get_permissions(current_path)
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+ # 2. the user can access the file/folder, otherwise ssh won't use it
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+ if owner == username:
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+ # need only the owner permissions
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+ minimal_permissions &= 0o700
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+ else:
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+ group_owner = util.get_group(current_path)
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+ user_groups = util.get_user_groups(username)
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+
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+ if group_owner in user_groups:
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+ # need only the group permissions
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+ minimal_permissions &= 0o070
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+ else:
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+ # need only the world permissions
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+ minimal_permissions &= 0o007
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+
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+ if parent_permission & minimal_permissions == 0:
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+ LOG.debug("Path %s in %s must be accessible by user %s,"
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+ " check its permissions",
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+ current_path, full_path, username)
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+ return False
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+
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+ # 3. no write permission (w) is given to group and world users (022)
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+ # Group and world user can still have +rx.
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+ if strictmodes and parent_permission & 0o022 != 0:
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+ LOG.debug("Path %s in %s must not give write"
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+ "permission to group or world users. Ignoring key.",
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+ current_path, full_path)
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+ return False
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+
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+ return True
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+
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+
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+def check_create_path(username, filename, strictmodes):
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+ user_pwent = users_ssh_info(username)[1]
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+ root_pwent = users_ssh_info("root")[1]
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+ try:
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+ # check the directories first
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+ directories = filename.split("/")[1:-1]
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+
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+ # scan in order, from root to file name
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+ parent_folder = ""
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+ # this is to comply also with unit tests, and
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+ # strange home directories
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+ home_folder = os.path.dirname(user_pwent.pw_dir)
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+ for directory in directories:
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+ parent_folder += "/" + directory
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+ if home_folder.startswith(parent_folder):
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+ continue
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+
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+ if not os.path.isdir(parent_folder):
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+ # directory does not exist, and permission so far are good:
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+ # create the directory, and make it accessible by everyone
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+ # but owned by root, as it might be used by many users.
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+ with util.SeLinuxGuard(parent_folder):
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+ os.makedirs(parent_folder, mode=0o755, exist_ok=True)
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+ util.chownbyid(parent_folder, root_pwent.pw_uid,
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+ root_pwent.pw_gid)
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+
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+ permissions = check_permissions(username, parent_folder,
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+ filename, False, strictmodes)
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+ if not permissions:
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+ return False
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+
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+ # check the file
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+ if not os.path.exists(filename):
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+ # if file does not exist: we need to create it, since the
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+ # folders at this point exist and have right permissions
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+ util.write_file(filename, '', mode=0o600, ensure_dir_exists=True)
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+ util.chownbyid(filename, user_pwent.pw_uid, user_pwent.pw_gid)
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+
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+ permissions = check_permissions(username, filename,
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+ filename, True, strictmodes)
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+ if not permissions:
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+ return False
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+ except (IOError, OSError) as e:
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+ util.logexc(LOG, str(e))
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+ return False
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+
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+ return True
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+
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+
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def extract_authorized_keys(username, sshd_cfg_file=DEF_SSHD_CFG):
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(ssh_dir, pw_ent) = users_ssh_info(username)
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default_authorizedkeys_file = os.path.join(ssh_dir, 'authorized_keys')
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@@ -259,6 +366,7 @@ def extract_authorized_keys(username, sshd_cfg_file=DEF_SSHD_CFG):
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ssh_cfg = parse_ssh_config_map(sshd_cfg_file)
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key_paths = ssh_cfg.get("authorizedkeysfile",
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"%h/.ssh/authorized_keys")
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+ strictmodes = ssh_cfg.get("strictmodes", "yes")
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auth_key_fns = render_authorizedkeysfile_paths(
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key_paths, pw_ent.pw_dir, username)
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@@ -269,31 +377,31 @@ def extract_authorized_keys(username, sshd_cfg_file=DEF_SSHD_CFG):
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"config from %r, using 'AuthorizedKeysFile' file "
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"%r instead", DEF_SSHD_CFG, auth_key_fns[0])
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- # check if one of the keys is the user's one
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+ # check if one of the keys is the user's one and has the right permissions
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for key_path, auth_key_fn in zip(key_paths.split(), auth_key_fns):
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if any([
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'%u' in key_path,
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'%h' in key_path,
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auth_key_fn.startswith('{}/'.format(pw_ent.pw_dir))
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]):
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- user_authorizedkeys_file = auth_key_fn
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+ permissions_ok = check_create_path(username, auth_key_fn,
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+ strictmodes == "yes")
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+ if permissions_ok:
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+ user_authorizedkeys_file = auth_key_fn
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+ break
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if user_authorizedkeys_file != default_authorizedkeys_file:
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LOG.debug(
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"AuthorizedKeysFile has an user-specific authorized_keys, "
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"using %s", user_authorizedkeys_file)
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- # always store all the keys in the user's private file
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- return (user_authorizedkeys_file, parse_authorized_keys(auth_key_fns))
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+ return (
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+ user_authorizedkeys_file,
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+ parse_authorized_keys([user_authorizedkeys_file])
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+ )
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def setup_user_keys(keys, username, options=None):
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- # Make sure the users .ssh dir is setup accordingly
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- (ssh_dir, pwent) = users_ssh_info(username)
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- if not os.path.isdir(ssh_dir):
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- util.ensure_dir(ssh_dir, mode=0o700)
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- util.chownbyid(ssh_dir, pwent.pw_uid, pwent.pw_gid)
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-
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# Turn the 'update' keys given into actual entries
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parser = AuthKeyLineParser()
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key_entries = []
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@@ -302,11 +410,10 @@ def setup_user_keys(keys, username, options=None):
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# Extract the old and make the new
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(auth_key_fn, auth_key_entries) = extract_authorized_keys(username)
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+ ssh_dir = os.path.dirname(auth_key_fn)
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with util.SeLinuxGuard(ssh_dir, recursive=True):
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content = update_authorized_keys(auth_key_entries, key_entries)
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- util.ensure_dir(os.path.dirname(auth_key_fn), mode=0o700)
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- util.write_file(auth_key_fn, content, mode=0o600)
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- util.chownbyid(auth_key_fn, pwent.pw_uid, pwent.pw_gid)
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+ util.write_file(auth_key_fn, content, preserve_mode=True)
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class SshdConfigLine(object):
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diff --git a/cloudinit/util.py b/cloudinit/util.py
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index 4e0a72db..343976ad 100644
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--- a/cloudinit/util.py
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+++ b/cloudinit/util.py
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@@ -35,6 +35,7 @@ from base64 import b64decode, b64encode
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from errno import ENOENT
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from functools import lru_cache
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from urllib import parse
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+from typing import List
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from cloudinit import importer
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from cloudinit import log as logging
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@@ -1830,6 +1831,53 @@ def chmod(path, mode):
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os.chmod(path, real_mode)
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+def get_permissions(path: str) -> int:
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+ """
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+ Returns the octal permissions of the file/folder pointed by the path,
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+ encoded as an int.
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+
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+ @param path: The full path of the file/folder.
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+ """
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+
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+ return stat.S_IMODE(os.stat(path).st_mode)
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+
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+
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+def get_owner(path: str) -> str:
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+ """
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+ Returns the owner of the file/folder pointed by the path.
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+
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+ @param path: The full path of the file/folder.
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+ """
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+ st = os.stat(path)
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+ return pwd.getpwuid(st.st_uid).pw_name
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+
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+
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+def get_group(path: str) -> str:
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+ """
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+ Returns the group of the file/folder pointed by the path.
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+
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+ @param path: The full path of the file/folder.
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+ """
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+ st = os.stat(path)
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+ return grp.getgrgid(st.st_gid).gr_name
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+
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+
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+def get_user_groups(username: str) -> List[str]:
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+ """
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+ Returns a list of all groups to which the user belongs
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+
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+ @param username: the user we want to check
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+ """
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+ groups = []
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+ for group in grp.getgrall():
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+ if username in group.gr_mem:
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+ groups.append(group.gr_name)
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+
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+ gid = pwd.getpwnam(username).pw_gid
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+ groups.append(grp.getgrgid(gid).gr_name)
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+ return groups
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+
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+
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def write_file(
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filename,
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content,
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@@ -1856,8 +1904,7 @@ def write_file(
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if preserve_mode:
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try:
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- file_stat = os.stat(filename)
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- mode = stat.S_IMODE(file_stat.st_mode)
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+ mode = get_permissions(filename)
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except OSError:
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pass
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diff --git a/tests/unittests/test_sshutil.py b/tests/unittests/test_sshutil.py
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index bcb8044f..a66788bf 100644
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--- a/tests/unittests/test_sshutil.py
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+++ b/tests/unittests/test_sshutil.py
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@@ -1,6 +1,9 @@
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# This file is part of cloud-init. See LICENSE file for license information.
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+import os
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+
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from collections import namedtuple
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+from functools import partial
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from unittest.mock import patch
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from cloudinit import ssh_util
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@@ -8,13 +11,48 @@ from cloudinit.tests import helpers as test_helpers
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from cloudinit import util
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# https://stackoverflow.com/questions/11351032/
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-FakePwEnt = namedtuple(
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- 'FakePwEnt',
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- ['pw_dir', 'pw_gecos', 'pw_name', 'pw_passwd', 'pw_shell', 'pwd_uid'])
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+FakePwEnt = namedtuple('FakePwEnt', [
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+ 'pw_name',
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+ 'pw_passwd',
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+ 'pw_uid',
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+ 'pw_gid',
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+ 'pw_gecos',
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+ 'pw_dir',
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+ 'pw_shell',
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+])
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FakePwEnt.__new__.__defaults__ = tuple(
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"UNSET_%s" % n for n in FakePwEnt._fields)
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+def mock_get_owner(updated_permissions, value):
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+ try:
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+ return updated_permissions[value][0]
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+ except ValueError:
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+ return util.get_owner(value)
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+
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+
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+def mock_get_group(updated_permissions, value):
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+ try:
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+ return updated_permissions[value][1]
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+ except ValueError:
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+ return util.get_group(value)
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+
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+
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+def mock_get_user_groups(username):
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+ return username
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+
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+
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+def mock_get_permissions(updated_permissions, value):
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+ try:
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+ return updated_permissions[value][2]
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+ except ValueError:
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+ return util.get_permissions(value)
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+
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+
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+def mock_getpwnam(users, username):
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+ return users[username]
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+
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+
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# Do not use these public keys, most of them are fetched from
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# the testdata for OpenSSH, and their private keys are available
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# https://github.com/openssh/openssh-portable/tree/master/regress/unittests/sshkey/testdata
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@@ -552,12 +590,30 @@ class TestBasicAuthorizedKeyParse(test_helpers.CiTestCase):
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ssh_util.render_authorizedkeysfile_paths(
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"/opt/%u/keys", "/home/bobby", "bobby"))
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+ def test_user_file(self):
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+ self.assertEqual(
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+ ["/opt/bobby"],
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+ ssh_util.render_authorizedkeysfile_paths(
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+ "/opt/%u", "/home/bobby", "bobby"))
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+
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+ def test_user_file2(self):
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+ self.assertEqual(
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+ ["/opt/bobby/bobby"],
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+ ssh_util.render_authorizedkeysfile_paths(
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+ "/opt/%u/%u", "/home/bobby", "bobby"))
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+
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def test_multiple(self):
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self.assertEqual(
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["/keys/path1", "/keys/path2"],
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ssh_util.render_authorizedkeysfile_paths(
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"/keys/path1 /keys/path2", "/home/bobby", "bobby"))
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+ def test_multiple2(self):
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+ self.assertEqual(
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+ ["/keys/path1", "/keys/bobby"],
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+ ssh_util.render_authorizedkeysfile_paths(
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+ "/keys/path1 /keys/%u", "/home/bobby", "bobby"))
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+
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def test_relative(self):
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self.assertEqual(
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["/home/bobby/.secret/keys"],
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@@ -581,269 +637,763 @@ class TestBasicAuthorizedKeyParse(test_helpers.CiTestCase):
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class TestMultipleSshAuthorizedKeysFile(test_helpers.CiTestCase):
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- @patch("cloudinit.ssh_util.pwd.getpwnam")
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- def test_multiple_authorizedkeys_file_order1(self, m_getpwnam):
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- fpw = FakePwEnt(pw_name='bobby', pw_dir='/tmp/home2/bobby')
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- m_getpwnam.return_value = fpw
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- user_ssh_folder = "%s/.ssh" % fpw.pw_dir
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-
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- # /tmp/home2/bobby/.ssh/authorized_keys = rsa
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- authorized_keys = self.tmp_path('authorized_keys', dir=user_ssh_folder)
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- util.write_file(authorized_keys, VALID_CONTENT['rsa'])
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-
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- # /tmp/home2/bobby/.ssh/user_keys = dsa
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- user_keys = self.tmp_path('user_keys', dir=user_ssh_folder)
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- util.write_file(user_keys, VALID_CONTENT['dsa'])
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-
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- # /tmp/sshd_config
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+ def create_fake_users(self, names, mock_permissions,
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+ m_get_group, m_get_owner, m_get_permissions,
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+ m_getpwnam, users):
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+ homes = []
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+
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+ root = '/tmp/root'
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+ fpw = FakePwEnt(pw_name="root", pw_dir=root)
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+ users["root"] = fpw
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+
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+ for name in names:
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+ home = '/tmp/home/' + name
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+ fpw = FakePwEnt(pw_name=name, pw_dir=home)
|
|
+ users[name] = fpw
|
|
+ homes.append(home)
|
|
+
|
|
+ m_get_permissions.side_effect = partial(
|
|
+ mock_get_permissions, mock_permissions)
|
|
+ m_get_owner.side_effect = partial(mock_get_owner, mock_permissions)
|
|
+ m_get_group.side_effect = partial(mock_get_group, mock_permissions)
|
|
+ m_getpwnam.side_effect = partial(mock_getpwnam, users)
|
|
+ return homes
|
|
+
|
|
+ def create_user_authorized_file(self, home, filename, content_key, keys):
|
|
+ user_ssh_folder = "%s/.ssh" % home
|
|
+ # /tmp/home/<user>/.ssh/authorized_keys = content_key
|
|
+ authorized_keys = self.tmp_path(filename, dir=user_ssh_folder)
|
|
+ util.write_file(authorized_keys, VALID_CONTENT[content_key])
|
|
+ keys[authorized_keys] = content_key
|
|
+ return authorized_keys
|
|
+
|
|
+ def create_global_authorized_file(self, filename, content_key, keys):
|
|
+ authorized_keys = self.tmp_path(filename, dir='/tmp')
|
|
+ util.write_file(authorized_keys, VALID_CONTENT[content_key])
|
|
+ keys[authorized_keys] = content_key
|
|
+ return authorized_keys
|
|
+
|
|
+ def create_sshd_config(self, authorized_keys_files):
|
|
sshd_config = self.tmp_path('sshd_config', dir="/tmp")
|
|
util.write_file(
|
|
sshd_config,
|
|
- "AuthorizedKeysFile %s %s" % (authorized_keys, user_keys)
|
|
+ "AuthorizedKeysFile " + authorized_keys_files
|
|
)
|
|
+ return sshd_config
|
|
|
|
+ def execute_and_check(self, user, sshd_config, solution, keys,
|
|
+ delete_keys=True):
|
|
(auth_key_fn, auth_key_entries) = ssh_util.extract_authorized_keys(
|
|
- fpw.pw_name, sshd_config)
|
|
+ user, sshd_config)
|
|
content = ssh_util.update_authorized_keys(auth_key_entries, [])
|
|
|
|
- self.assertEqual(user_keys, auth_key_fn)
|
|
- self.assertTrue(VALID_CONTENT['rsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['dsa'] in content)
|
|
+ self.assertEqual(auth_key_fn, solution)
|
|
+ for path, key in keys.items():
|
|
+ if path == solution:
|
|
+ self.assertTrue(VALID_CONTENT[key] in content)
|
|
+ else:
|
|
+ self.assertFalse(VALID_CONTENT[key] in content)
|
|
+
|
|
+ if delete_keys and os.path.isdir("/tmp/home/"):
|
|
+ util.delete_dir_contents("/tmp/home/")
|
|
|
|
@patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
- def test_multiple_authorizedkeys_file_order2(self, m_getpwnam):
|
|
- fpw = FakePwEnt(pw_name='suzie', pw_dir='/tmp/home/suzie')
|
|
- m_getpwnam.return_value = fpw
|
|
- user_ssh_folder = "%s/.ssh" % fpw.pw_dir
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_single_user_two_local_files(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam
|
|
+ ):
|
|
+ user_bobby = 'bobby'
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/user_keys': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+ }
|
|
+
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby], mock_permissions, m_get_group, m_get_owner,
|
|
+ m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ home = homes[0]
|
|
|
|
- # /tmp/home/suzie/.ssh/authorized_keys = rsa
|
|
- authorized_keys = self.tmp_path('authorized_keys', dir=user_ssh_folder)
|
|
- util.write_file(authorized_keys, VALID_CONTENT['rsa'])
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home, 'authorized_keys', 'rsa', keys
|
|
+ )
|
|
|
|
- # /tmp/home/suzie/.ssh/user_keys = dsa
|
|
- user_keys = self.tmp_path('user_keys', dir=user_ssh_folder)
|
|
- util.write_file(user_keys, VALID_CONTENT['dsa'])
|
|
+ # /tmp/home/bobby/.ssh/user_keys = dsa
|
|
+ user_keys = self.create_user_authorized_file(
|
|
+ home, 'user_keys', 'dsa', keys
|
|
+ )
|
|
|
|
# /tmp/sshd_config
|
|
- sshd_config = self.tmp_path('sshd_config', dir="/tmp")
|
|
- util.write_file(
|
|
- sshd_config,
|
|
- "AuthorizedKeysFile %s %s" % (user_keys, authorized_keys)
|
|
+ options = "%s %s" % (authorized_keys, user_keys)
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ self.execute_and_check(user_bobby, sshd_config, authorized_keys, keys)
|
|
+
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_single_user_two_local_files_inverted(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam
|
|
+ ):
|
|
+ user_bobby = 'bobby'
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/user_keys': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+ }
|
|
+
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby], mock_permissions, m_get_group, m_get_owner,
|
|
+ m_get_permissions, m_getpwnam, users
|
|
)
|
|
+ home = homes[0]
|
|
|
|
- (auth_key_fn, auth_key_entries) = ssh_util.extract_authorized_keys(
|
|
- fpw.pw_name, sshd_config)
|
|
- content = ssh_util.update_authorized_keys(auth_key_entries, [])
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home, 'authorized_keys', 'rsa', keys
|
|
+ )
|
|
|
|
- self.assertEqual(authorized_keys, auth_key_fn)
|
|
- self.assertTrue(VALID_CONTENT['rsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['dsa'] in content)
|
|
+ # /tmp/home/bobby/.ssh/user_keys = dsa
|
|
+ user_keys = self.create_user_authorized_file(
|
|
+ home, 'user_keys', 'dsa', keys
|
|
+ )
|
|
|
|
- @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
- def test_multiple_authorizedkeys_file_local_global(self, m_getpwnam):
|
|
- fpw = FakePwEnt(pw_name='bobby', pw_dir='/tmp/home2/bobby')
|
|
- m_getpwnam.return_value = fpw
|
|
- user_ssh_folder = "%s/.ssh" % fpw.pw_dir
|
|
+ # /tmp/sshd_config
|
|
+ options = "%s %s" % (user_keys, authorized_keys)
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
|
|
- # /tmp/home2/bobby/.ssh/authorized_keys = rsa
|
|
- authorized_keys = self.tmp_path('authorized_keys', dir=user_ssh_folder)
|
|
- util.write_file(authorized_keys, VALID_CONTENT['rsa'])
|
|
+ self.execute_and_check(user_bobby, sshd_config, user_keys, keys)
|
|
|
|
- # /tmp/home2/bobby/.ssh/user_keys = dsa
|
|
- user_keys = self.tmp_path('user_keys', dir=user_ssh_folder)
|
|
- util.write_file(user_keys, VALID_CONTENT['dsa'])
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_single_user_local_global_files(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam
|
|
+ ):
|
|
+ user_bobby = 'bobby'
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/user_keys': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+ }
|
|
+
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby], mock_permissions, m_get_group, m_get_owner,
|
|
+ m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ home = homes[0]
|
|
|
|
- # /tmp/etc/ssh/authorized_keys = ecdsa
|
|
- authorized_keys_global = self.tmp_path('etc/ssh/authorized_keys',
|
|
- dir="/tmp")
|
|
- util.write_file(authorized_keys_global, VALID_CONTENT['ecdsa'])
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home, 'authorized_keys', 'rsa', keys
|
|
+ )
|
|
|
|
- # /tmp/sshd_config
|
|
- sshd_config = self.tmp_path('sshd_config', dir="/tmp")
|
|
- util.write_file(
|
|
- sshd_config,
|
|
- "AuthorizedKeysFile %s %s %s" % (authorized_keys_global,
|
|
- user_keys, authorized_keys)
|
|
+ # /tmp/home/bobby/.ssh/user_keys = dsa
|
|
+ user_keys = self.create_user_authorized_file(
|
|
+ home, 'user_keys', 'dsa', keys
|
|
)
|
|
|
|
- (auth_key_fn, auth_key_entries) = ssh_util.extract_authorized_keys(
|
|
- fpw.pw_name, sshd_config)
|
|
- content = ssh_util.update_authorized_keys(auth_key_entries, [])
|
|
+ authorized_keys_global = self.create_global_authorized_file(
|
|
+ 'etc/ssh/authorized_keys', 'ecdsa', keys
|
|
+ )
|
|
|
|
- self.assertEqual(authorized_keys, auth_key_fn)
|
|
- self.assertTrue(VALID_CONTENT['rsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['ecdsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['dsa'] in content)
|
|
+ options = "%s %s %s" % (authorized_keys_global, user_keys,
|
|
+ authorized_keys)
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
|
|
- @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
- def test_multiple_authorizedkeys_file_local_global2(self, m_getpwnam):
|
|
- fpw = FakePwEnt(pw_name='bobby', pw_dir='/tmp/home2/bobby')
|
|
- m_getpwnam.return_value = fpw
|
|
- user_ssh_folder = "%s/.ssh" % fpw.pw_dir
|
|
+ self.execute_and_check(user_bobby, sshd_config, user_keys, keys)
|
|
|
|
- # /tmp/home2/bobby/.ssh/authorized_keys2 = rsa
|
|
- authorized_keys = self.tmp_path('authorized_keys2',
|
|
- dir=user_ssh_folder)
|
|
- util.write_file(authorized_keys, VALID_CONTENT['rsa'])
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_single_user_local_global_files_inverted(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam
|
|
+ ):
|
|
+ user_bobby = 'bobby'
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/user_keys3': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys2': ('bobby', 'bobby', 0o600),
|
|
+ }
|
|
+
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby], mock_permissions, m_get_group, m_get_owner,
|
|
+ m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ home = homes[0]
|
|
|
|
- # /tmp/home2/bobby/.ssh/user_keys3 = dsa
|
|
- user_keys = self.tmp_path('user_keys3', dir=user_ssh_folder)
|
|
- util.write_file(user_keys, VALID_CONTENT['dsa'])
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home, 'authorized_keys2', 'rsa', keys
|
|
+ )
|
|
|
|
- # /tmp/etc/ssh/authorized_keys = ecdsa
|
|
- authorized_keys_global = self.tmp_path('etc/ssh/authorized_keys',
|
|
- dir="/tmp")
|
|
- util.write_file(authorized_keys_global, VALID_CONTENT['ecdsa'])
|
|
+ # /tmp/home/bobby/.ssh/user_keys = dsa
|
|
+ user_keys = self.create_user_authorized_file(
|
|
+ home, 'user_keys3', 'dsa', keys
|
|
+ )
|
|
|
|
- # /tmp/sshd_config
|
|
- sshd_config = self.tmp_path('sshd_config', dir="/tmp")
|
|
- util.write_file(
|
|
- sshd_config,
|
|
- "AuthorizedKeysFile %s %s %s" % (authorized_keys_global,
|
|
- authorized_keys, user_keys)
|
|
+ authorized_keys_global = self.create_global_authorized_file(
|
|
+ 'etc/ssh/authorized_keys', 'ecdsa', keys
|
|
)
|
|
|
|
- (auth_key_fn, auth_key_entries) = ssh_util.extract_authorized_keys(
|
|
- fpw.pw_name, sshd_config)
|
|
- content = ssh_util.update_authorized_keys(auth_key_entries, [])
|
|
+ options = "%s %s %s" % (authorized_keys_global, authorized_keys,
|
|
+ user_keys)
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
|
|
- self.assertEqual(user_keys, auth_key_fn)
|
|
- self.assertTrue(VALID_CONTENT['rsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['ecdsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['dsa'] in content)
|
|
+ self.execute_and_check(user_bobby, sshd_config, authorized_keys, keys)
|
|
|
|
@patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
- def test_multiple_authorizedkeys_file_global(self, m_getpwnam):
|
|
- fpw = FakePwEnt(pw_name='bobby', pw_dir='/tmp/home2/bobby')
|
|
- m_getpwnam.return_value = fpw
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_single_user_global_file(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam
|
|
+ ):
|
|
+ user_bobby = 'bobby'
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+ }
|
|
+
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby], mock_permissions, m_get_group, m_get_owner,
|
|
+ m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ home = homes[0]
|
|
|
|
# /tmp/etc/ssh/authorized_keys = rsa
|
|
- authorized_keys_global = self.tmp_path('etc/ssh/authorized_keys',
|
|
- dir="/tmp")
|
|
- util.write_file(authorized_keys_global, VALID_CONTENT['rsa'])
|
|
+ authorized_keys_global = self.create_global_authorized_file(
|
|
+ 'etc/ssh/authorized_keys', 'rsa', keys
|
|
+ )
|
|
|
|
- # /tmp/sshd_config
|
|
- sshd_config = self.tmp_path('sshd_config')
|
|
- util.write_file(
|
|
- sshd_config,
|
|
- "AuthorizedKeysFile %s" % (authorized_keys_global)
|
|
+ options = "%s" % authorized_keys_global
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ default = "%s/.ssh/authorized_keys" % home
|
|
+ self.execute_and_check(user_bobby, sshd_config, default, keys)
|
|
+
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_two_users_local_file_standard(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam
|
|
+ ):
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/suzie': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh/authorized_keys': ('suzie', 'suzie', 0o600),
|
|
+ }
|
|
+
|
|
+ user_bobby = 'bobby'
|
|
+ user_suzie = 'suzie'
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby, user_suzie], mock_permissions, m_get_group,
|
|
+ m_get_owner, m_get_permissions, m_getpwnam, users
|
|
)
|
|
+ home_bobby = homes[0]
|
|
+ home_suzie = homes[1]
|
|
|
|
- (auth_key_fn, auth_key_entries) = ssh_util.extract_authorized_keys(
|
|
- fpw.pw_name, sshd_config)
|
|
- content = ssh_util.update_authorized_keys(auth_key_entries, [])
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home_bobby, 'authorized_keys', 'rsa', keys
|
|
+ )
|
|
|
|
- self.assertEqual("%s/.ssh/authorized_keys" % fpw.pw_dir, auth_key_fn)
|
|
- self.assertTrue(VALID_CONTENT['rsa'] in content)
|
|
+ # /tmp/home/suzie/.ssh/authorized_keys = rsa
|
|
+ authorized_keys2 = self.create_user_authorized_file(
|
|
+ home_suzie, 'authorized_keys', 'ssh-xmss@openssh.com', keys
|
|
+ )
|
|
+
|
|
+ options = ".ssh/authorized_keys"
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ self.execute_and_check(
|
|
+ user_bobby, sshd_config, authorized_keys, keys, delete_keys=False
|
|
+ )
|
|
+ self.execute_and_check(user_suzie, sshd_config, authorized_keys2, keys)
|
|
|
|
@patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
- def test_multiple_authorizedkeys_file_multiuser(self, m_getpwnam):
|
|
- fpw = FakePwEnt(pw_name='bobby', pw_dir='/tmp/home2/bobby')
|
|
- m_getpwnam.return_value = fpw
|
|
- user_ssh_folder = "%s/.ssh" % fpw.pw_dir
|
|
- # /tmp/home2/bobby/.ssh/authorized_keys2 = rsa
|
|
- authorized_keys = self.tmp_path('authorized_keys2',
|
|
- dir=user_ssh_folder)
|
|
- util.write_file(authorized_keys, VALID_CONTENT['rsa'])
|
|
- # /tmp/home2/bobby/.ssh/user_keys3 = dsa
|
|
- user_keys = self.tmp_path('user_keys3', dir=user_ssh_folder)
|
|
- util.write_file(user_keys, VALID_CONTENT['dsa'])
|
|
-
|
|
- fpw2 = FakePwEnt(pw_name='suzie', pw_dir='/tmp/home/suzie')
|
|
- user_ssh_folder = "%s/.ssh" % fpw2.pw_dir
|
|
- # /tmp/home/suzie/.ssh/authorized_keys2 = ssh-xmss@openssh.com
|
|
- authorized_keys2 = self.tmp_path('authorized_keys2',
|
|
- dir=user_ssh_folder)
|
|
- util.write_file(authorized_keys2,
|
|
- VALID_CONTENT['ssh-xmss@openssh.com'])
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_two_users_local_file_custom(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam
|
|
+ ):
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys2': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/suzie': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh/authorized_keys2': ('suzie', 'suzie', 0o600),
|
|
+ }
|
|
+
|
|
+ user_bobby = 'bobby'
|
|
+ user_suzie = 'suzie'
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby, user_suzie], mock_permissions, m_get_group,
|
|
+ m_get_owner, m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ home_bobby = homes[0]
|
|
+ home_suzie = homes[1]
|
|
|
|
- # /tmp/etc/ssh/authorized_keys = ecdsa
|
|
- authorized_keys_global = self.tmp_path('etc/ssh/authorized_keys2',
|
|
- dir="/tmp")
|
|
- util.write_file(authorized_keys_global, VALID_CONTENT['ecdsa'])
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys2 = rsa
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home_bobby, 'authorized_keys2', 'rsa', keys
|
|
+ )
|
|
|
|
- # /tmp/sshd_config
|
|
- sshd_config = self.tmp_path('sshd_config', dir="/tmp")
|
|
- util.write_file(
|
|
- sshd_config,
|
|
- "AuthorizedKeysFile %s %%h/.ssh/authorized_keys2 %s" %
|
|
- (authorized_keys_global, user_keys)
|
|
+ # /tmp/home/suzie/.ssh/authorized_keys2 = rsa
|
|
+ authorized_keys2 = self.create_user_authorized_file(
|
|
+ home_suzie, 'authorized_keys2', 'ssh-xmss@openssh.com', keys
|
|
)
|
|
|
|
- # process first user
|
|
- (auth_key_fn, auth_key_entries) = ssh_util.extract_authorized_keys(
|
|
- fpw.pw_name, sshd_config)
|
|
- content = ssh_util.update_authorized_keys(auth_key_entries, [])
|
|
+ options = ".ssh/authorized_keys2"
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ self.execute_and_check(
|
|
+ user_bobby, sshd_config, authorized_keys, keys, delete_keys=False
|
|
+ )
|
|
+ self.execute_and_check(user_suzie, sshd_config, authorized_keys2, keys)
|
|
|
|
- self.assertEqual(user_keys, auth_key_fn)
|
|
- self.assertTrue(VALID_CONTENT['rsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['ecdsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['dsa'] in content)
|
|
- self.assertFalse(VALID_CONTENT['ssh-xmss@openssh.com'] in content)
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_two_users_local_global_files(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam
|
|
+ ):
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys2': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/bobby/.ssh/user_keys3': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/suzie': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh/authorized_keys2': ('suzie', 'suzie', 0o600),
|
|
+ '/tmp/home/suzie/.ssh/user_keys3': ('suzie', 'suzie', 0o600),
|
|
+ }
|
|
+
|
|
+ user_bobby = 'bobby'
|
|
+ user_suzie = 'suzie'
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby, user_suzie], mock_permissions, m_get_group,
|
|
+ m_get_owner, m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ home_bobby = homes[0]
|
|
+ home_suzie = homes[1]
|
|
|
|
- m_getpwnam.return_value = fpw2
|
|
- # process second user
|
|
- (auth_key_fn, auth_key_entries) = ssh_util.extract_authorized_keys(
|
|
- fpw2.pw_name, sshd_config)
|
|
- content = ssh_util.update_authorized_keys(auth_key_entries, [])
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys2 = rsa
|
|
+ self.create_user_authorized_file(
|
|
+ home_bobby, 'authorized_keys2', 'rsa', keys
|
|
+ )
|
|
+ # /tmp/home/bobby/.ssh/user_keys3 = dsa
|
|
+ user_keys = self.create_user_authorized_file(
|
|
+ home_bobby, 'user_keys3', 'dsa', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/home/suzie/.ssh/authorized_keys2 = rsa
|
|
+ authorized_keys2 = self.create_user_authorized_file(
|
|
+ home_suzie, 'authorized_keys2', 'ssh-xmss@openssh.com', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/etc/ssh/authorized_keys = ecdsa
|
|
+ authorized_keys_global = self.create_global_authorized_file(
|
|
+ 'etc/ssh/authorized_keys2', 'ecdsa', keys
|
|
+ )
|
|
+
|
|
+ options = "%s %s %%h/.ssh/authorized_keys2" % \
|
|
+ (authorized_keys_global, user_keys)
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
|
|
- self.assertEqual(authorized_keys2, auth_key_fn)
|
|
- self.assertTrue(VALID_CONTENT['ssh-xmss@openssh.com'] in content)
|
|
- self.assertTrue(VALID_CONTENT['ecdsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['dsa'] in content)
|
|
- self.assertFalse(VALID_CONTENT['rsa'] in content)
|
|
+ self.execute_and_check(
|
|
+ user_bobby, sshd_config, user_keys, keys, delete_keys=False
|
|
+ )
|
|
+ self.execute_and_check(user_suzie, sshd_config, authorized_keys2, keys)
|
|
|
|
+ @patch("cloudinit.util.get_user_groups")
|
|
@patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
- def test_multiple_authorizedkeys_file_multiuser2(self, m_getpwnam):
|
|
- fpw = FakePwEnt(pw_name='bobby', pw_dir='/tmp/home/bobby')
|
|
- m_getpwnam.return_value = fpw
|
|
- user_ssh_folder = "%s/.ssh" % fpw.pw_dir
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_two_users_local_global_files_badguy(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam,
|
|
+ m_get_user_groups
|
|
+ ):
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys2': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/bobby/.ssh/user_keys3': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/home/badguy': ('root', 'root', 0o755),
|
|
+ '/tmp/home/badguy/home': ('root', 'root', 0o755),
|
|
+ '/tmp/home/badguy/home/bobby': ('root', 'root', 0o655),
|
|
+ }
|
|
+
|
|
+ user_bobby = 'bobby'
|
|
+ user_badguy = 'badguy'
|
|
+ home_bobby, *_ = self.create_fake_users(
|
|
+ [user_bobby, user_badguy], mock_permissions, m_get_group,
|
|
+ m_get_owner, m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ m_get_user_groups.side_effect = mock_get_user_groups
|
|
+
|
|
# /tmp/home/bobby/.ssh/authorized_keys2 = rsa
|
|
- authorized_keys = self.tmp_path('authorized_keys2',
|
|
- dir=user_ssh_folder)
|
|
- util.write_file(authorized_keys, VALID_CONTENT['rsa'])
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home_bobby, 'authorized_keys2', 'rsa', keys
|
|
+ )
|
|
# /tmp/home/bobby/.ssh/user_keys3 = dsa
|
|
- user_keys = self.tmp_path('user_keys3', dir=user_ssh_folder)
|
|
- util.write_file(user_keys, VALID_CONTENT['dsa'])
|
|
+ user_keys = self.create_user_authorized_file(
|
|
+ home_bobby, 'user_keys3', 'dsa', keys
|
|
+ )
|
|
|
|
- fpw2 = FakePwEnt(pw_name='badguy', pw_dir='/tmp/home/badguy')
|
|
- user_ssh_folder = "%s/.ssh" % fpw2.pw_dir
|
|
# /tmp/home/badguy/home/bobby = ""
|
|
authorized_keys2 = self.tmp_path('home/bobby', dir="/tmp/home/badguy")
|
|
+ util.write_file(authorized_keys2, '')
|
|
|
|
# /tmp/etc/ssh/authorized_keys = ecdsa
|
|
- authorized_keys_global = self.tmp_path('etc/ssh/authorized_keys2',
|
|
- dir="/tmp")
|
|
- util.write_file(authorized_keys_global, VALID_CONTENT['ecdsa'])
|
|
+ authorized_keys_global = self.create_global_authorized_file(
|
|
+ 'etc/ssh/authorized_keys2', 'ecdsa', keys
|
|
+ )
|
|
|
|
# /tmp/sshd_config
|
|
- sshd_config = self.tmp_path('sshd_config', dir="/tmp")
|
|
- util.write_file(
|
|
- sshd_config,
|
|
- "AuthorizedKeysFile %s %%h/.ssh/authorized_keys2 %s %s" %
|
|
- (authorized_keys_global, user_keys, authorized_keys2)
|
|
+ options = "%s %%h/.ssh/authorized_keys2 %s %s" % \
|
|
+ (authorized_keys2, authorized_keys_global, user_keys)
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ self.execute_and_check(
|
|
+ user_bobby, sshd_config, authorized_keys, keys, delete_keys=False
|
|
+ )
|
|
+ self.execute_and_check(
|
|
+ user_badguy, sshd_config, authorized_keys2, keys
|
|
)
|
|
|
|
- # process first user
|
|
- (auth_key_fn, auth_key_entries) = ssh_util.extract_authorized_keys(
|
|
- fpw.pw_name, sshd_config)
|
|
- content = ssh_util.update_authorized_keys(auth_key_entries, [])
|
|
+ @patch("cloudinit.util.get_user_groups")
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_two_users_unaccessible_file(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam,
|
|
+ m_get_user_groups
|
|
+ ):
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+
|
|
+ '/tmp/etc': ('root', 'root', 0o755),
|
|
+ '/tmp/etc/ssh': ('root', 'root', 0o755),
|
|
+ '/tmp/etc/ssh/userkeys': ('root', 'root', 0o700),
|
|
+ '/tmp/etc/ssh/userkeys/bobby': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/etc/ssh/userkeys/badguy': ('badguy', 'badguy', 0o600),
|
|
+
|
|
+ '/tmp/home/badguy': ('badguy', 'badguy', 0o700),
|
|
+ '/tmp/home/badguy/.ssh': ('badguy', 'badguy', 0o700),
|
|
+ '/tmp/home/badguy/.ssh/authorized_keys':
|
|
+ ('badguy', 'badguy', 0o600),
|
|
+ }
|
|
+
|
|
+ user_bobby = 'bobby'
|
|
+ user_badguy = 'badguy'
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby, user_badguy], mock_permissions, m_get_group,
|
|
+ m_get_owner, m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ m_get_user_groups.side_effect = mock_get_user_groups
|
|
+ home_bobby = homes[0]
|
|
+ home_badguy = homes[1]
|
|
|
|
- self.assertEqual(user_keys, auth_key_fn)
|
|
- self.assertTrue(VALID_CONTENT['rsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['ecdsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['dsa'] in content)
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home_bobby, 'authorized_keys', 'rsa', keys
|
|
+ )
|
|
+ # /tmp/etc/ssh/userkeys/bobby = dsa
|
|
+ # assume here that we can bypass userkeys, despite permissions
|
|
+ self.create_global_authorized_file(
|
|
+ 'etc/ssh/userkeys/bobby', 'dsa', keys
|
|
+ )
|
|
|
|
- m_getpwnam.return_value = fpw2
|
|
- # process second user
|
|
- (auth_key_fn, auth_key_entries) = ssh_util.extract_authorized_keys(
|
|
- fpw2.pw_name, sshd_config)
|
|
- content = ssh_util.update_authorized_keys(auth_key_entries, [])
|
|
+ # /tmp/home/badguy/.ssh/authorized_keys = ssh-xmss@openssh.com
|
|
+ authorized_keys2 = self.create_user_authorized_file(
|
|
+ home_badguy, 'authorized_keys', 'ssh-xmss@openssh.com', keys
|
|
+ )
|
|
|
|
- # badguy should not take the key from the other user!
|
|
- self.assertEqual(authorized_keys2, auth_key_fn)
|
|
- self.assertTrue(VALID_CONTENT['ecdsa'] in content)
|
|
- self.assertTrue(VALID_CONTENT['dsa'] in content)
|
|
- self.assertFalse(VALID_CONTENT['rsa'] in content)
|
|
+ # /tmp/etc/ssh/userkeys/badguy = ecdsa
|
|
+ self.create_global_authorized_file(
|
|
+ 'etc/ssh/userkeys/badguy', 'ecdsa', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/sshd_config
|
|
+ options = "/tmp/etc/ssh/userkeys/%u .ssh/authorized_keys"
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ self.execute_and_check(
|
|
+ user_bobby, sshd_config, authorized_keys, keys, delete_keys=False
|
|
+ )
|
|
+ self.execute_and_check(
|
|
+ user_badguy, sshd_config, authorized_keys2, keys
|
|
+ )
|
|
+
|
|
+ @patch("cloudinit.util.get_user_groups")
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_two_users_accessible_file(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam,
|
|
+ m_get_user_groups
|
|
+ ):
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+
|
|
+ '/tmp/etc': ('root', 'root', 0o755),
|
|
+ '/tmp/etc/ssh': ('root', 'root', 0o755),
|
|
+ '/tmp/etc/ssh/userkeys': ('root', 'root', 0o755),
|
|
+ '/tmp/etc/ssh/userkeys/bobby': ('bobby', 'bobby', 0o600),
|
|
+ '/tmp/etc/ssh/userkeys/badguy': ('badguy', 'badguy', 0o600),
|
|
+
|
|
+ '/tmp/home/badguy': ('badguy', 'badguy', 0o700),
|
|
+ '/tmp/home/badguy/.ssh': ('badguy', 'badguy', 0o700),
|
|
+ '/tmp/home/badguy/.ssh/authorized_keys':
|
|
+ ('badguy', 'badguy', 0o600),
|
|
+ }
|
|
+
|
|
+ user_bobby = 'bobby'
|
|
+ user_badguy = 'badguy'
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby, user_badguy], mock_permissions, m_get_group,
|
|
+ m_get_owner, m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ m_get_user_groups.side_effect = mock_get_user_groups
|
|
+ home_bobby = homes[0]
|
|
+ home_badguy = homes[1]
|
|
+
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ self.create_user_authorized_file(
|
|
+ home_bobby, 'authorized_keys', 'rsa', keys
|
|
+ )
|
|
+ # /tmp/etc/ssh/userkeys/bobby = dsa
|
|
+ # assume here that we can bypass userkeys, despite permissions
|
|
+ authorized_keys = self.create_global_authorized_file(
|
|
+ 'etc/ssh/userkeys/bobby', 'dsa', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/home/badguy/.ssh/authorized_keys = ssh-xmss@openssh.com
|
|
+ self.create_user_authorized_file(
|
|
+ home_badguy, 'authorized_keys', 'ssh-xmss@openssh.com', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/etc/ssh/userkeys/badguy = ecdsa
|
|
+ authorized_keys2 = self.create_global_authorized_file(
|
|
+ 'etc/ssh/userkeys/badguy', 'ecdsa', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/sshd_config
|
|
+ options = "/tmp/etc/ssh/userkeys/%u .ssh/authorized_keys"
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ self.execute_and_check(
|
|
+ user_bobby, sshd_config, authorized_keys, keys, delete_keys=False
|
|
+ )
|
|
+ self.execute_and_check(
|
|
+ user_badguy, sshd_config, authorized_keys2, keys
|
|
+ )
|
|
+
|
|
+ @patch("cloudinit.util.get_user_groups")
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_two_users_hardcoded_single_user_file(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam,
|
|
+ m_get_user_groups
|
|
+ ):
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+
|
|
+ '/tmp/home/suzie': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh/authorized_keys': ('suzie', 'suzie', 0o600),
|
|
+ }
|
|
+
|
|
+ user_bobby = 'bobby'
|
|
+ user_suzie = 'suzie'
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby, user_suzie], mock_permissions, m_get_group,
|
|
+ m_get_owner, m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ home_bobby = homes[0]
|
|
+ home_suzie = homes[1]
|
|
+ m_get_user_groups.side_effect = mock_get_user_groups
|
|
+
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home_bobby, 'authorized_keys', 'rsa', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/home/suzie/.ssh/authorized_keys = ssh-xmss@openssh.com
|
|
+ self.create_user_authorized_file(
|
|
+ home_suzie, 'authorized_keys', 'ssh-xmss@openssh.com', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/sshd_config
|
|
+ options = "%s" % (authorized_keys)
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ self.execute_and_check(
|
|
+ user_bobby, sshd_config, authorized_keys, keys, delete_keys=False
|
|
+ )
|
|
+ default = "%s/.ssh/authorized_keys" % home_suzie
|
|
+ self.execute_and_check(user_suzie, sshd_config, default, keys)
|
|
+
|
|
+ @patch("cloudinit.util.get_user_groups")
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_two_users_hardcoded_single_user_file_inverted(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam,
|
|
+ m_get_user_groups
|
|
+ ):
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+
|
|
+ '/tmp/home/suzie': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh/authorized_keys': ('suzie', 'suzie', 0o600),
|
|
+ }
|
|
+
|
|
+ user_bobby = 'bobby'
|
|
+ user_suzie = 'suzie'
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby, user_suzie], mock_permissions, m_get_group,
|
|
+ m_get_owner, m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ home_bobby = homes[0]
|
|
+ home_suzie = homes[1]
|
|
+ m_get_user_groups.side_effect = mock_get_user_groups
|
|
+
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ self.create_user_authorized_file(
|
|
+ home_bobby, 'authorized_keys', 'rsa', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/home/suzie/.ssh/authorized_keys = ssh-xmss@openssh.com
|
|
+ authorized_keys2 = self.create_user_authorized_file(
|
|
+ home_suzie, 'authorized_keys', 'ssh-xmss@openssh.com', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/sshd_config
|
|
+ options = "%s" % (authorized_keys2)
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ default = "%s/.ssh/authorized_keys" % home_bobby
|
|
+ self.execute_and_check(
|
|
+ user_bobby, sshd_config, default, keys, delete_keys=False
|
|
+ )
|
|
+ self.execute_and_check(user_suzie, sshd_config, authorized_keys2, keys)
|
|
+
|
|
+ @patch("cloudinit.util.get_user_groups")
|
|
+ @patch("cloudinit.ssh_util.pwd.getpwnam")
|
|
+ @patch("cloudinit.util.get_permissions")
|
|
+ @patch("cloudinit.util.get_owner")
|
|
+ @patch("cloudinit.util.get_group")
|
|
+ def test_two_users_hardcoded_user_files(
|
|
+ self, m_get_group, m_get_owner, m_get_permissions, m_getpwnam,
|
|
+ m_get_user_groups
|
|
+ ):
|
|
+ keys = {}
|
|
+ users = {}
|
|
+ mock_permissions = {
|
|
+ '/tmp/home/bobby': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh': ('bobby', 'bobby', 0o700),
|
|
+ '/tmp/home/bobby/.ssh/authorized_keys': ('bobby', 'bobby', 0o600),
|
|
+
|
|
+ '/tmp/home/suzie': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh': ('suzie', 'suzie', 0o700),
|
|
+ '/tmp/home/suzie/.ssh/authorized_keys': ('suzie', 'suzie', 0o600),
|
|
+ }
|
|
+
|
|
+ user_bobby = 'bobby'
|
|
+ user_suzie = 'suzie'
|
|
+ homes = self.create_fake_users(
|
|
+ [user_bobby, user_suzie], mock_permissions, m_get_group,
|
|
+ m_get_owner, m_get_permissions, m_getpwnam, users
|
|
+ )
|
|
+ home_bobby = homes[0]
|
|
+ home_suzie = homes[1]
|
|
+ m_get_user_groups.side_effect = mock_get_user_groups
|
|
+
|
|
+ # /tmp/home/bobby/.ssh/authorized_keys = rsa
|
|
+ authorized_keys = self.create_user_authorized_file(
|
|
+ home_bobby, 'authorized_keys', 'rsa', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/home/suzie/.ssh/authorized_keys = ssh-xmss@openssh.com
|
|
+ authorized_keys2 = self.create_user_authorized_file(
|
|
+ home_suzie, 'authorized_keys', 'ssh-xmss@openssh.com', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/etc/ssh/authorized_keys = ecdsa
|
|
+ authorized_keys_global = self.create_global_authorized_file(
|
|
+ 'etc/ssh/authorized_keys', 'ecdsa', keys
|
|
+ )
|
|
+
|
|
+ # /tmp/sshd_config
|
|
+ options = "%s %s %s" % \
|
|
+ (authorized_keys_global, authorized_keys, authorized_keys2)
|
|
+ sshd_config = self.create_sshd_config(options)
|
|
+
|
|
+ self.execute_and_check(
|
|
+ user_bobby, sshd_config, authorized_keys, keys, delete_keys=False
|
|
+ )
|
|
+ self.execute_and_check(user_suzie, sshd_config, authorized_keys2, keys)
|
|
|
|
# vi: ts=4 expandtab
|
|
--
|
|
2.27.0
|
|
|