Merge pull request #82 from pepoluan/allow_list_or_string

Allow list or string for some option, and setting of ConfigBanner
This commit is contained in:
Javier Bértoli 2017-02-07 07:26:44 -03:00 committed by GitHub
commit 2db9253c45
3 changed files with 71 additions and 4 deletions

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@ -2,6 +2,7 @@
{%- set ssh_config = salt['pillar.get']('ssh_config', default=default_settings.ssh_config, merge=True) -%}
{#- present in ssh_config and known in actual file options -#}
{%- set processed_options = [] -%}
{%- set string_or_list_options = ['KexAlgorithms', 'Ciphers', 'MACs'] -%}
{%- macro render_raw_option(keyword, value) -%}
{%- if value is sameas true -%}
@ -47,8 +48,31 @@
{{ option_impl(keyword, default, True) }}
{%- endmacro -%}
{#- macro for collapsing a list into a string -#}
{%- macro option_collapselist(keyword, sep) -%}
{%- do processed_options.append(keyword) -%}
{{keyword}} {{ssh_config.get(keyword)|join(sep)}}
{%- endmacro -%}
{#- macro for handling an option that can be specified as a list or a string -#}
{%- macro option_string_or_list(keyword, default, default_commented, sep=',') -%}
{%- if ssh_config.get(keyword, '') is string -%}
{%- if default_commented -%}
{{ option(keyword, default) }}
{%- else -%}
{{ option_default_uncommented(keyword, default) }}
{%- endif -%}
{%- else -%}
{{ option_collapselist(keyword, sep) }}
{%- endif -%}
{%- endmacro -%}
{%- if ssh_config.get('ConfigBanner', False) -%}
{{ ssh_config['ConfigBanner'] }}
{%- else -%}
# Do not edit this file manually!
# It will be overwritten by salt!
{%- endif %}
{%- if 'Hosts' in ssh_config %}
{%- do processed_options.append('Hosts') %}
@ -64,8 +88,13 @@ Host {{ host }}
{%- for keyword in ssh_config.keys() %}
{#- Matches have to be at the bottom and should be handled differently -#}
{%- if not keyword in processed_options and keyword != 'matches' -%}
{%- if not keyword in string_or_list_options -%}
{#- send a blank default as it doesn't matter #}
{{ render_option(keyword, '') }}
{%- else -%}
{#- same as above #}
{{ option_string_or_list(keyword, '', True) }}
{%- endif -%}
{%- endif -%}
{%- endfor %}
@ -78,3 +107,6 @@ Match {{ match['type'].keys()[0] }} {{ match['type'].values()[0] }}
{%- endfor %}
{%- endfor %}
{%- endif %}
{#- vim: set ft=jinja : #}

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@ -42,7 +42,30 @@
{{ option_impl(keyword, default, True) }}
{%- endmacro -%}
{#- macro for collapsing a list into a string -#}
{%- macro option_collapselist(keyword, sep) -%}
{%- do processed_options.append(keyword) -%}
{{keyword}} {{sshd_config.get(keyword)|join(sep)}}
{%- endmacro -%}
{#- macro for handling an option that can be specified as a list or a string -#}
{%- macro option_string_or_list(keyword, default, default_commented, sep=',') -%}
{%- if sshd_config.get(keyword, '') is string -%}
{%- if default_commented -%}
{{ option(keyword, default) }}
{%- else -%}
{{ option_default_uncommented(keyword, default) }}
{%- endif -%}
{%- else -%}
{{ option_collapselist(keyword, sep) }}
{%- endif -%}
{%- endmacro -%}
{%- if sshd_config.get('ConfigBanner', False) -%}
{{ sshd_config['ConfigBanner'] }}
{%- else -%}
# This file is managed by salt. Manual changes risk being overwritten.
{%- endif %}
# The contents of the original sshd_config are kept on the bottom for
# quick reference.
# See the sshd_config(5) manpage for details
@ -170,13 +193,13 @@
{{ option('AllowGroups', '') }}
# Specifies the available KEX (Key Exchange) algorithms.
{{ option('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') }}
{{ 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) }}
# Specifies the ciphers allowed for protocol version 2.
{{ option('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') }}
{{ 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) }}
# Specifies the available MAC (message authentication code) algorithms.
{{ option('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') }}
{{ 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) }}
{# Handling unknown in salt template options #}
{%- for keyword in sshd_config.keys() %}
@ -196,3 +219,5 @@ Match {{ match['type'].keys()[0] }} {{ match['type'].values()[0] }}
{%- endfor %}
{%- endfor %}
{%- endif %}
{#- vim: set ft=jinja : #}

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@ -1,4 +1,9 @@
sshd_config:
# This keyword is totally optional
ConfigBanner: |
# Alternative banner for the config file
# (Indented) hash signs lose their special meaning here
# and the lines will be written as-is.
Port: 22
Protocol: 2
HostKey:
@ -53,9 +58,14 @@ sshd_config:
AllowTcpForwarding: no
ForceCommand: internal-sftp
# Check `man sshd_config` for supported KexAlgorithms, Ciphers and MACs first.
KexAlgorithms: 'diffie-hellman-group14-sha1,diffie-hellman-group1-sha1'
# For these three keywords, the options may be specified as a list...
KexAlgorithms:
- diffie-hellman-group14-sha1
- diffie-hellman-group1-sha1
# ... or a single string.
Ciphers: 'aes128-ctr,aes256-ctr'
MACs: 'hmac-sha1'
# Similar situation for ssh_config
ssh_config:
StrictHostKeyChecking: no