254 lines
10 KiB
Plaintext
254 lines
10 KiB
Plaintext
{% from "openssh/map.jinja" import sshd_config with context %}
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{#- present in sshd_config and known in actual file options -#}
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{%- set processed_options = [] -%}
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{#- generic renderer used for sshd matches, known options, -#}
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{#- and unknown options -#}
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{%- macro render_option(keyword, default, config_dict=sshd_config) -%}
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{%- set value = config_dict.get(keyword, default) -%}
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{%- if value is sameas true -%}
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{{ keyword }} yes
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{%- elif value is sameas false -%}
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{{ keyword }} no
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{%- elif value is string or value is number -%}
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{{ keyword }} {{ value }}
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{%- else -%}
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{%- for single_value in value -%}
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{{ keyword }} {{ single_value }}
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{% endfor -%}
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{%- endif -%}
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{%- endmacro -%}
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{#- macros for render option according to present -#}
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{%- macro option_impl(keyword, default, present) -%}
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{%- if present -%}
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{%- do processed_options.append(keyword) -%}
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{%- set prefix='' -%}
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{%- else -%}
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{%- set prefix='#' -%}
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{%- endif -%}
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{#- add prefix to keyword -#}
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{%- set keyword = prefix ~ keyword -%}
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{{ render_option(keyword, default) }}
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{%- endmacro -%}
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{#- macros for render option commented by default -#}
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{%- macro option(keyword, default, present) -%}
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{{ option_impl(keyword, default, keyword in sshd_config) }}
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{%- endmacro -%}
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{#- macros for render option uncommented by default -#}
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{%- macro option_default_uncommented(keyword, default, present) -%}
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{{ option_impl(keyword, default, True) }}
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{%- endmacro -%}
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{#- macro for collapsing a list into a string -#}
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{%- macro option_collapselist(keyword, sep) -%}
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{%- do processed_options.append(keyword) -%}
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{{keyword}} {{sshd_config.get(keyword)|join(sep)}}
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{%- endmacro -%}
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{#- macro for handling an option that can be specified as a list or a string -#}
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{%- macro option_string_or_list(keyword, default, default_commented, sep=',') -%}
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{%- if sshd_config.get(keyword, '') is string -%}
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{%- if default_commented -%}
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{{ option(keyword, default) }}
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{%- else -%}
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{{ option_default_uncommented(keyword, default) }}
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{%- endif -%}
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{%- else -%}
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{{ option_collapselist(keyword, sep) }}
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{%- endif -%}
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{%- endmacro -%}
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{#- macro for conditionally joining a string, list or dict(keys) to just a string -#}
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{%- macro join_to_string(src, keyword, sep=',') -%}
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{%- set srcval = src.get(keyword, '') -%}
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{%- if srcval is string -%}
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{{ srcval }}
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{%- elif srcval is mapping -%}
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{{ srcval.keys()|sort|join(sep) }}
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{%- else -%}
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{{ srcval|join(sep) }}
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{%- endif -%}
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{%- endmacro -%}
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{%- if sshd_config.get('ConfigBanner', False) -%}
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{%- do processed_options.append('ConfigBanner') -%}
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{{ sshd_config['ConfigBanner'] }}
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{%- else -%}
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# This file is managed by salt. Manual changes risk being overwritten.
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{%- endif %}
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{%- set global_src_url = salt ['pillar.get']('__formulas:print_template_url', None) %}
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{%- set local_src_url = salt ['pillar.get']('openssh-formula:print_template_url', None) %}
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{%- if (global_src_url and local_src_url is none) or local_src_url %}
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#
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# Template used to generate this file:
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# {{ source }}
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#
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{%- endif %}
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# The contents of the original sshd_config are kept on the bottom for
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# quick reference.
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# See the sshd_config(5) manpage for details
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# Specifies which address family should be used by sshd(8).
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# Valid arguments are any, inet (use IPv4 only), or inet6 (use IPv6 only)
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{{ option('AddressFamily', 'any') }}
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# What ports, IPs and protocols we listen for
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{{ option('Port', 22) }}
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# Use these options to restrict which interfaces/protocols sshd will bind to
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{{ option('ListenAddress', ['::', '0.0.0.0']) }}
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{{ option_default_uncommented('Protocol', 2) }}
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# HostKeys for protocol version 2
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{{ option_default_uncommented('HostKey', ['/etc/ssh/ssh_host_rsa_key', '/etc/ssh/ssh_host_dsa_key', '/etc/ssh/ssh_host_ecdsa_key', '/etc/ssh/ssh_host_ed25519_key']) -}}
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#Privilege Separation is turned on for security
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{{ option_default_uncommented('UsePrivilegeSeparation', 'sandbox') }}
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# Lifetime and size of ephemeral version 1 server key
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{{ option_default_uncommented('KeyRegenerationInterval', 3600) }}
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{{ option_default_uncommented('ServerKeyBits', 1024) }}
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# Logging
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{{ option_default_uncommented('SyslogFacility', 'AUTH') }}
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{{ option_default_uncommented('LogLevel', 'INFO') }}
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# Session idle time out
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{{ option_default_uncommented('ClientAliveInterval', 0) }}
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{{ option_default_uncommented('ClientAliveCountMax', 3) }}
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# Authentication:
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{{ option_default_uncommented('LoginGraceTime', 120) }}
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{{ option_default_uncommented('PermitRootLogin', 'yes') }}
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{{ option_default_uncommented('StrictModes', 'yes') }}
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{{ option_default_uncommented('MaxAuthTries', '6') }}
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{{ option_default_uncommented('MaxSessions', '10') }}
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{{ option('DSAAuthentication', 'yes') }}
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{{ option_default_uncommented('RSAAuthentication', 'yes') }}
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{{ option_default_uncommented('PubkeyAuthentication', 'yes') }}
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{{ option('AuthorizedKeysFile', '%h/.ssh/authorized_keys') }}
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{{ option('AuthorizedKeysCommand', 'none') }}
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{{ option('AuthorizedKeysCommandUser', 'nobody') }}
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# Don't read the user's ~/.rhosts and ~/.shosts files
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{{ option_default_uncommented('IgnoreRhosts', 'yes') }}
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# For this to work you will also need host keys in /etc/ssh_known_hosts
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{{ option_default_uncommented('RhostsRSAAuthentication', 'no') }}
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# similar for protocol version 2
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{{ option_default_uncommented('HostbasedAuthentication', 'no') }}
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# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
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{{ option('IgnoreUserKnownHosts', 'yes') }}
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# To enable empty passwords, change to yes (NOT RECOMMENDED)
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{{ option_default_uncommented('PermitEmptyPasswords', 'no') }}
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# Change to yes to enable challenge-response passwords (beware issues with
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# some PAM modules and threads)
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{{ option_default_uncommented('ChallengeResponseAuthentication', 'no') }}
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{{ option('AuthenticationMethods', 'publickey,keyboard-interactive') }}
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# Change to no to disable tunnelled clear text passwords
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{{ option('PasswordAuthentication', 'yes') }}
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# Kerberos options
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{{ option('KerberosAuthentication', 'no') }}
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{{ option('KerberosGetAFSToken', 'no') }}
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{{ option('KerberosOrLocalPasswd', 'yes') }}
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{{ option('KerberosTicketCleanup', 'yes') }}
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# GSSAPI options
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{{ option('GSSAPIAuthentication', 'no') }}
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{{ option('GSSAPICleanupCredentials', 'yes') }}
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{{ option_default_uncommented('X11Forwarding', 'yes') }}
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{{ option('AllowTcpForwarding', 'yes') }}
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{{ option_default_uncommented('X11DisplayOffset', '10') }}
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{{ option_default_uncommented('PrintMotd', 'no') }}
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{# Bug in FreeBSD 10.3 (?) See https://lists.freebsd.org/pipermail/freebsd-stable/2016-April/084501.html #}
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{% if not (salt['grains.get']('os') == 'FreeBSD' and salt['grains.get']('osrelease')|float >= 10.3) -%}
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{{ option_default_uncommented('PrintLastLog', 'yes') }}
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{% endif -%}
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{{ option_default_uncommented('TCPKeepAlive', 'yes') }}
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{{ option('UseLogin', 'no') }}
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{{ option('MaxStartups', '10:30:60') }}
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{{ option('Banner', '/etc/issue.net') }}
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# Allow client to pass locale environment variables
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{{ option_default_uncommented('AcceptEnv', 'LANG LC_*') }}
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{{ option_default_uncommented('Subsystem', 'sftp /usr/lib/openssh/sftp-server') }}
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{% if not salt['grains.get']('os') == 'OpenBSD' -%}
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# Set this to 'yes' to enable PAM authentication, account processing,
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# and session processing. If this is enabled, PAM authentication will
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# be allowed through the ChallengeResponseAuthentication and
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# PasswordAuthentication. Depending on your PAM configuration,
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# PAM authentication via ChallengeResponseAuthentication may bypass
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# the setting of "PermitRootLogin without-password".
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# If you just want the PAM account and session checks to run without
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# PAM authentication, then enable this but set PasswordAuthentication
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# and ChallengeResponseAuthentication to 'no'.
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{{ option_default_uncommented('UsePAM', 'yes') }}
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{%- endif %}
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# DNS resolve and map remote IP addresses
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{{ option('UseDNS', 'yes') }}
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# Restricting Users and Hosts
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# example:
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# AllowUsers vader@10.0.0.1 maul@sproing.evil.com luke
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# AllowGroups wheel staff
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#
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# Keep in mind that using AllowUsers or AllowGroups means that anyone
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# not Matching one of the supplied patterns will be denied access by default.
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# Also, in order for sshd to allow access based on full or partial hostnames it
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# needs to to a DNS lookup
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#
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# DenyUsers
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{{ option_string_or_list('DenyUsers', '', True , sep=' ')}}
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# AllowUsers
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{{ option_string_or_list('AllowUsers', '', True , sep=' ')}}
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# DenyGroups
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{{ option_string_or_list('DenyGroups', '', True , sep=' ')}}
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# AllowGroups
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{{ option_string_or_list('AllowGroups', '', True , sep=' ')}}
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# Specifies the available KEX (Key Exchange) algorithms.
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{{ option_string_or_list('KexAlgorithms', 'ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1', True) }}
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# Specifies the ciphers allowed for protocol version 2.
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{{ option_string_or_list('Ciphers', 'aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se', True) }}
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# Specifies the available MAC (message authentication code) algorithms.
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{{ option_string_or_list('MACs', 'hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96', True) }}
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{# Handling unknown in salt template options #}
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{%- for keyword in sshd_config.keys() %}
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{#- Matches have to be at the bottom and should be handled differently -#}
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{%- if not keyword in processed_options and keyword != 'matches' -%}
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{#- send a blank default as it doesn't matter #}
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{{ render_option(keyword, '') }}
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{%- endif -%}
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{%- endfor %}
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{# Handle matches last as they need to go at the bottom #}
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{%- if 'matches' in sshd_config %}
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{%- for name, match in sshd_config['matches']|dictsort(true) %}
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Match
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{#- Set up the match criteria -#}
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{%- for criteria in match['type'].keys()|sort() -%}
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{{- ' ' }}{{criteria }} {{ join_to_string(match['type'], criteria) -}}
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{%- endfor %} #{{ name }}
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{#- Set up the applied options -#}
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{%- for keyword in match['options'].keys()|sort() %}
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{{ render_option(keyword, '', config_dict=match['options']) }}
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{%- endfor %}
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{%- endfor %}
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{%- endif %}
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{#- vim: set ft=jinja : #}
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