diff options
-rw-r--r-- | data/configd-include.json | 1 | ||||
-rw-r--r-- | data/templates/snmp/etc.snmp.conf.tmpl | 2 | ||||
-rw-r--r-- | data/templates/snmp/etc.snmpd.conf.tmpl | 151 | ||||
-rw-r--r-- | data/templates/snmp/override.conf.tmpl | 2 | ||||
-rw-r--r-- | data/templates/snmp/usr.snmpd.conf.tmpl | 8 | ||||
-rw-r--r-- | data/templates/snmp/var.snmpd.conf.tmpl | 20 | ||||
-rw-r--r-- | interface-definitions/include/snmp/access-mode.xml.i | 23 | ||||
-rw-r--r-- | interface-definitions/include/snmp/authentication-type.xml.i | 22 | ||||
-rw-r--r-- | interface-definitions/include/snmp/privacy-type.xml.i | 22 | ||||
-rw-r--r-- | interface-definitions/include/snmp/protocol.xml.i | 22 | ||||
-rw-r--r-- | interface-definitions/snmp.xml.in | 236 | ||||
-rw-r--r-- | python/vyos/template.py | 14 | ||||
-rwxr-xr-x | src/conf_mode/snmp.py | 639 |
13 files changed, 436 insertions, 726 deletions
diff --git a/data/configd-include.json b/data/configd-include.json index ee4cb0d42..9090cb201 100644 --- a/data/configd-include.json +++ b/data/configd-include.json @@ -54,6 +54,7 @@ "service_mdns-repeater.py", "service_pppoe-server.py", "service_router-advert.py", +"snmp.py", "ssh.py", "system-ip.py", "system-ipv6.py", diff --git a/data/templates/snmp/etc.snmp.conf.tmpl b/data/templates/snmp/etc.snmp.conf.tmpl index 6e4c6f063..f7d9a3c17 100644 --- a/data/templates/snmp/etc.snmp.conf.tmpl +++ b/data/templates/snmp/etc.snmp.conf.tmpl @@ -1,4 +1,4 @@ ### Autogenerated by snmp.py ### -{% if trap_source %} +{% if trap_source is defined and trap_source is not none %} clientaddr {{ trap_source }} {% endif %} diff --git a/data/templates/snmp/etc.snmpd.conf.tmpl b/data/templates/snmp/etc.snmpd.conf.tmpl index 30806ce8a..befea0122 100644 --- a/data/templates/snmp/etc.snmpd.conf.tmpl +++ b/data/templates/snmp/etc.snmpd.conf.tmpl @@ -33,87 +33,152 @@ interface_replace_old yes # Default system description is VyOS version sysDescr VyOS {{ version }} -{% if description %} +{% if description is defined and description is not none %} # Description SysDescr {{ description }} {% endif %} # Listen -agentaddress unix:/run/snmpd.socket{% if listen_on %}{% for li in listen_on %},{{ li }}{% endfor %}{% else %},{{protocol}}:161{% if ipv6_enabled %},{{protocol}}6:161{% endif %}{% endif %} +{% set options = [] %} +{% if listen_address is defined and listen_address is not none %} +{% for address, address_options in listen_address.items() %} +{% if address | is_ipv6 %} +{% set protocol = protocol ~ '6' %} +{% endif %} +{% set _ = options.append(protocol ~ ':' ~ address | bracketize_ipv6 ~ ':' ~ address_options.port) %} +{% endfor %} +{% else %} +{% set _ = options.append(protocol ~ ':161') %} +{% if ipv6_disabled is not defined %} +{% set _ = options.append(protocol ~ '6:161') %} +{% endif %} +{% endif %} +agentaddress unix:/run/snmpd.socket{{ ',' ~ options | join(',') if options is defined and options is not none }} # SNMP communities -{% for c in communities %} -{% if c.network_v4 %} -{% for network in c.network_v4 %} -{{ c.authorization }}community {{ c.name }} {{ network }} -{% endfor %} -{% elif not c.has_source %} -{{ c.authorization }}community {{ c.name }} -{% endif %} -{% if c.network_v6 %} -{% for network in c.network_v6 %} -{{ c.authorization }}community6 {{ c.name }} {{ network }} -{% endfor %} -{% elif not c.has_source %} -{{ c.authorization }}community6 {{ c.name }} -{% endif %} -{% endfor %} +{% if community is defined and community is not none %} +{% for comm, comm_config in community.items() %} +{% if comm_config.client is defined and comm_config.client is not none %} +{% for client in comm_config.client %} +{% if client | is_ipv4 %} +{{ comm_config.authorization }}community {{ comm }} {{ client }} +{% elif client | is_ipv6 %} +{{ comm_config.authorization }}community6 {{ comm }} {{ client }} +{% endif %} +{% endfor %} +{% endif %} +{% if comm_config.network is defined and comm_config.network is not none %} +{% for network in comm_config.network %} +{% if network | is_ipv4 %} +{{ comm_config.authorization }}community {{ comm }} {{ network }} +{% elif client | is_ipv6 %} +{{ comm_config.authorization }}community6 {{ comm }} {{ network }} +{% endif %} +{% endfor %} +{% endif %} +{% if comm_config.client is not defined and comm_config.network is not defined %} +{{ comm_config.authorization }}community {{ comm }} +{% endif %} +{% endfor %} +{% endif %} -{% if contact %} +{% if contact is defined and contact is not none %} # system contact information SysContact {{ contact }} {% endif %} -{% if location %} +{% if location is defined and location is not none %} # system location information SysLocation {{ location }} {% endif %} -{% if smux_peers %} +{% if smux_peer is defined and smux_peer is not none %} # additional smux peers -{% for sp in smux_peers %} -smuxpeer {{ sp }} +{% for peer in smux_peer %} +smuxpeer {{ peer }} {% endfor %} {% endif %} -{% if trap_targets %} +{% if trap_target is defined and trap_target is not none %} # if there is a problem - tell someone! -{% for trap in trap_targets %} -trap2sink {{ trap.target }}{{ ":" + trap.port if trap.port is defined }} {{ trap.community }} +{% for trap, trap_config in trap_target.items() %} +trap2sink {{ trap }}:{{ trap_config.port }} {{ trap_config.community }} {% endfor %} {% endif %} -{% if v3_enabled %} +{% if v3 is defined and v3 is not none %} # # SNMPv3 stuff goes here # +{% if v3.view is defined and v3.view is not none %} # views -{% for view in v3_views %} -{% for oid in view.oids %} -view {{ view.name }} included .{{ oid.oid }} +{% for view, view_config in v3.view.items() %} +{% if view_config.oid is defined and view_config.oid is not none %} +{% for oid in view_config.oid %} +view {{ view }} included .{{ oid }} +{% endfor %} +{% endif %} {% endfor %} -{% endfor %} +{% endif %} # access +{% if v3.group is defined and v3.group is not none %} # context sec.model sec.level match read write notif -{% for group in v3_groups %} -access {{ group.name }} "" usm {{ group.seclevel }} exact {{ group.view }} {% if group.mode == 'ro' %}none{% else %}{{ group.view }}{% endif %} none -{% endfor %} +{% for group, group_config in v3.group.items() %} +access {{ group }} "" usm {{ group_config.seclevel }} exact {{ group_config.view }} {% if group_config.mode == 'ro' %}none{% else %}{{ group_config.view }}{% endif %} none +{% endfor %} +{% endif %} # trap-target -{% for t in v3_traps %} -trapsess -v 3 {{ '-Ci' if t.type == 'inform' }} -e {{ v3_engineid }} -u {{ t.secName }} -l {{ t.secLevel }} -a {{ t.authProtocol }} {% if t.authPassword %}-A {{ t.authPassword }}{% elif t.authMasterKey %}-3m {{ t.authMasterKey }}{% endif %} -x {{ t.privProtocol }} {% if t.privPassword %}-X {{ t.privPassword }}{% elif t.privMasterKey %}-3M {{ t.privMasterKey }}{% endif %} {{ t.ipProto }}:{{ t.ipAddr }}:{{ t.ipPort }} -{% endfor %} +{% if v3.trap_target is defined and v3.trap_target is not none %} +{% for trap, trap_config in v3.trap_target.items() %} +{% set options = '' %} +{% if trap_config.type == 'inform' %} +{% set options = options ~ ' -Ci' %} +{% endif %} +{% if v3.engineid is defined and v3.engineid is not none %} +{% set options = options ~ ' -e "' ~ v3.engineid ~ '"' %} +{% endif %} +{% if trap_config.user is defined and trap_config.user is not none %} +{% set options = options ~ ' -u ' ~ trap_config.user %} +{% endif %} +{% if trap_config.auth is defined and trap_config.auth.plaintext_password is defined or trap_config.auth.encrypted_password is defined %} +{% set options = options ~ ' -a ' ~ trap_config.auth.type %} +{% if trap_config.auth.plaintext_password is defined and trap_config.auth.plaintext_password is not none %} +{% set options = options ~ ' -A ' ~ trap_config.auth.plaintext_password %} +{% elif trap_config.auth.encrypted_password is defined and trap_config.auth.encrypted_password is not none %} +{% set options = options ~ ' -3m ' ~ trap_config.auth.encrypted_password %} +{% endif %} +{% if trap_config.privacy is defined and trap_config.privacy.plaintext_password is defined or trap_config.privacy.encrypted_password is defined %} +{% set options = options ~ ' -x ' ~ trap_config.privacy.type %} +{% if trap_config.privacy.plaintext_password is defined and trap_config.privacy.plaintext_password is not none %} +{% set options = options ~ ' -X ' ~ trap_config.privacy.plaintext_password %} +{% elif trap_config.privacy.encrypted_password is defined and trap_config.privacy.encrypted_password is not none %} +{% set options = options ~ ' -3M ' ~ trap_config.privacy.encrypted_password %} +{% endif %} +{% set options = options ~ ' -l authPriv' %} +{% else %} +{% set options = options ~ ' -l authNoPriv' %} +{% endif %} +{% else %} +{% set options = options ~ ' -l noAuthNoPriv' %} +{% endif %} +trapsess -v 3 {{ options }} {{ trap }}:{{ trap_config.protocol }}:{{ trap_config.port }} +{% endfor %} +{% endif %} # group -{% for u in v3_users %} -group {{ u.group }} usm {{ u.name }} -{% endfor %} +{% if v3.user is defined and v3.user is not none %} +{% for user, user_config in v3.user.items() %} +group {{ user_config.group }} usm {{ user }} +{% endfor %} +{% endif %} +{# SNMPv3 end #} {% endif %} -{% if script_ext %} +{% if script_extensions is defined and script_extensions.extension_name is defined and script_extensions.extension_name is not none %} # extension scripts -{% for ext in script_ext|sort(attribute='name') %} -extend {{ ext.name }} {{ ext.script }} +{% for script, script_config in script_extensions.extension_name.items() | sort(attribute=script) %} +extend {{ script }} {{ script_config.script }} {% endfor %} {% endif %} diff --git a/data/templates/snmp/override.conf.tmpl b/data/templates/snmp/override.conf.tmpl index 2ac45a89f..3b00aab83 100644 --- a/data/templates/snmp/override.conf.tmpl +++ b/data/templates/snmp/override.conf.tmpl @@ -1,5 +1,5 @@ {% set vrf_command = 'ip vrf exec ' + vrf + ' ' if vrf is defined else '' %} -{% set oid_route_table = ' ' if route_table is sameas true else '-I -ipCidrRouteTable,inetCidrRouteTable' %} +{% set oid_route_table = ' ' if oid_enable is defined and oid_enable == 'route-table' else '-I -ipCidrRouteTable,inetCidrRouteTable' %} [Unit] StartLimitIntervalSec=0 After=vyos-router.service diff --git a/data/templates/snmp/usr.snmpd.conf.tmpl b/data/templates/snmp/usr.snmpd.conf.tmpl index e2c5ec102..1c688a61e 100644 --- a/data/templates/snmp/usr.snmpd.conf.tmpl +++ b/data/templates/snmp/usr.snmpd.conf.tmpl @@ -1,6 +1,8 @@ ### Autogenerated by snmp.py ### -{% for u in v3_users %} -{{ u.mode }}user {{ u.name }} -{% endfor %} +{% if v3 is defined and v3.user is defined and v3.user is not none %} +{% for user, user_config in v3.user.items() %} +{{ user_config.mode }}user {{ user }} +{% endfor %} +{% endif %} rwuser {{ vyos_user }} diff --git a/data/templates/snmp/var.snmpd.conf.tmpl b/data/templates/snmp/var.snmpd.conf.tmpl index c779587df..5871a8234 100644 --- a/data/templates/snmp/var.snmpd.conf.tmpl +++ b/data/templates/snmp/var.snmpd.conf.tmpl @@ -1,14 +1,16 @@ ### Autogenerated by snmp.py ### # user -{% for u in v3_users %} -{% if u.authOID == 'none' %} -createUser {{ u.name }} -{% else %} -usmUser 1 3 0x{{ v3_engineid }} "{{ u.name }}" "{{ u.name }}" NULL {{ u.authOID }} 0x{{ u.authMasterKey }} {{ u.privOID }} 0x{{ u.privMasterKey }} 0x -{% endif %} -{% endfor %} +{% if v3 is defined and v3 is not none %} +{% if v3.user is defined and v3.user is not none %} +{% for user, user_config in v3.user.items() %} +usmUser 1 3 0x{{ v3.engineid }} "{{ user }}" "{{ user }}" NULL {{ user_config.auth.type | snmp_auth_oid }} 0x{{ user_config.auth.encrypted_password }} {{ user_config.privacy.type | snmp_auth_oid }} 0x{{ user_config.privacy.encrypted_password }} 0x +{% endfor %} +{% endif %} +# VyOS default user createUser {{ vyos_user }} MD5 "{{ vyos_user_pass }}" DES -{% if v3_engineid %} -oldEngineID 0x{{ v3_engineid }} + +{% if v3.engineid is defined and v3.engineid is not none %} +oldEngineID 0x{{ v3.engineid }} +{% endif %} {% endif %} diff --git a/interface-definitions/include/snmp/access-mode.xml.i b/interface-definitions/include/snmp/access-mode.xml.i new file mode 100644 index 000000000..1fce2364e --- /dev/null +++ b/interface-definitions/include/snmp/access-mode.xml.i @@ -0,0 +1,23 @@ +<!-- include start from snmp/access-mode.xml.i --> +<leafNode name="mode"> + <properties> + <help>Define access permission</help> + <completionHelp> + <list>ro rw</list> + </completionHelp> + <valueHelp> + <format>ro</format> + <description>Read-Only (default)</description> + </valueHelp> + <valueHelp> + <format>rw</format> + <description>read write</description> + </valueHelp> + <constraint> + <regex>^(ro|rw)$</regex> + </constraint> + <constraintErrorMessage>Authorization type must be either 'rw' or 'ro'</constraintErrorMessage> + </properties> + <defaultValue>ro</defaultValue> +</leafNode> +<!-- include end --> diff --git a/interface-definitions/include/snmp/authentication-type.xml.i b/interface-definitions/include/snmp/authentication-type.xml.i new file mode 100644 index 000000000..2a545864a --- /dev/null +++ b/interface-definitions/include/snmp/authentication-type.xml.i @@ -0,0 +1,22 @@ +<!-- include start from snmp/authentication-type.xml.i --> +<leafNode name="type"> + <properties> + <help>Define used protocol</help> + <completionHelp> + <list>md5 sha</list> + </completionHelp> + <valueHelp> + <format>md5</format> + <description>Message Digest 5 (default)</description> + </valueHelp> + <valueHelp> + <format>sha</format> + <description>Secure Hash Algorithm</description> + </valueHelp> + <constraint> + <regex>^(md5|sha)$</regex> + </constraint> + </properties> + <defaultValue>md5</defaultValue> +</leafNode> +<!-- include end --> diff --git a/interface-definitions/include/snmp/privacy-type.xml.i b/interface-definitions/include/snmp/privacy-type.xml.i new file mode 100644 index 000000000..47a1e632e --- /dev/null +++ b/interface-definitions/include/snmp/privacy-type.xml.i @@ -0,0 +1,22 @@ +<!-- include start from snmp/privacy-type.xml.i --> +<leafNode name="type"> + <properties> + <help>Defines the protocol for privacy</help> + <completionHelp> + <list>des aes</list> + </completionHelp> + <valueHelp> + <format>des</format> + <description>Data Encryption Standard (default)</description> + </valueHelp> + <valueHelp> + <format>aes</format> + <description>Advanced Encryption Standard</description> + </valueHelp> + <constraint> + <regex>^(des|aes)$</regex> + </constraint> + </properties> + <defaultValue>des</defaultValue> +</leafNode> +<!-- include end --> diff --git a/interface-definitions/include/snmp/protocol.xml.i b/interface-definitions/include/snmp/protocol.xml.i new file mode 100644 index 000000000..335736724 --- /dev/null +++ b/interface-definitions/include/snmp/protocol.xml.i @@ -0,0 +1,22 @@ +<!-- include start from snmp/protocol.xml.i -->
+<leafNode name="protocol">
+ <properties>
+ <help>Protocol to be used (TCP/UDP)</help>
+ <completionHelp>
+ <list>udp tcp</list>
+ </completionHelp>
+ <valueHelp>
+ <format>udp</format>
+ <description>Listen protocol UDP (default)</description>
+ </valueHelp>
+ <valueHelp>
+ <format>tcp</format>
+ <description>Listen protocol TCP</description>
+ </valueHelp>
+ <constraint>
+ <regex>^(udp|tcp)$</regex>
+ </constraint>
+ </properties>
+ <defaultValue>udp</defaultValue>
+</leafNode>
+<!-- include end -->
diff --git a/interface-definitions/snmp.xml.in b/interface-definitions/snmp.xml.in index 949536fe7..67d3aef9a 100644 --- a/interface-definitions/snmp.xml.in +++ b/interface-definitions/snmp.xml.in @@ -20,23 +20,24 @@ <children> <leafNode name="authorization"> <properties> - <help>Authorization type (default: 'ro')</help> + <help>Authorization type</help> <completionHelp> <list>ro rw</list> </completionHelp> <valueHelp> <format>ro</format> - <description>read only</description> + <description>Read-Only (default)</description> </valueHelp> <valueHelp> <format>rw</format> - <description>read write</description> + <description>Read-Write</description> </valueHelp> <constraint> <regex>^(ro|rw)$</regex> </constraint> <constraintErrorMessage>Authorization type must be either 'rw' or 'ro'</constraintErrorMessage> </properties> + <defaultValue>ro</defaultValue> </leafNode> <leafNode name="client"> <properties> @@ -105,18 +106,9 @@ </constraint> </properties> <children> + #include <include/port-number.xml.i> <leafNode name="port"> - <properties> - <help>Port for SNMP service (default: '161')</help> - <valueHelp> - <format>u32:1-65535</format> - <description>Numeric IP port</description> - </valueHelp> - <constraint> - <validator name="numeric" argument="--range 1-65535"/> - </constraint> - <constraintErrorMessage>Port number must be in range 1 to 65535</constraintErrorMessage> - </properties> + <defaultValue>161</defaultValue> </leafNode> </children> </tagNode> @@ -131,50 +123,27 @@ </leafNode> <leafNode name="oid-enable"> <properties> - <help>Enable specific oids</help> - <valueHelp> - <format>txt</format> - <description>Enable specific oids</description> - </valueHelp> - <valueHelp> - <format>route-table</format> - <description>Enable route table oids (ipCidrRouteTable inetCidrRouteTable)</description> - </valueHelp> + <help>Enable specific OIDs</help> <completionHelp> <list>route-table</list> </completionHelp> - <constraint> - <regex>^(route-table)$</regex> - </constraint> - <constraintErrorMessage>Oid must be 'route-table'</constraintErrorMessage> - </properties> - </leafNode> - <leafNode name="protocol"> - <properties> - <help>Listen protocol for SNMP</help> - <completionHelp> - <list>udp tcp</list> - </completionHelp> <valueHelp> - <format>udp</format> - <description>Listen protocol UDP (default)</description> - </valueHelp> - <valueHelp> - <format>tcp</format> - <description>Listen protocol TCP</description> + <format>route-table</format> + <description>Enable routing table OIDs (ipCidrRouteTable inetCidrRouteTable)</description> </valueHelp> <constraint> - <regex>^(udp|tcp)$</regex> + <regex>^(route-table)$</regex> </constraint> + <constraintErrorMessage>OID must be 'route-table'</constraintErrorMessage> </properties> - <defaultValue>udp</defaultValue> </leafNode> + #include <include/snmp/protocol.xml.i> <leafNode name="smux-peer"> <properties> <help>Register a subtree for SMUX-based processing</help> <valueHelp> - <format>oid</format> - <description>Object Identifier</description> + <format>txt</format> + <description>SNMP Object Identifier</description> </valueHelp> <multi/> </properties> @@ -218,18 +187,9 @@ <help>Community used when sending trap information</help> </properties> </leafNode> + #include <include/port-number.xml.i> <leafNode name="port"> - <properties> - <help>Destination port used for trap notification</help> - <valueHelp> - <format>u32:1-65535</format> - <description>Numeric IP port</description> - </valueHelp> - <constraint> - <validator name="numeric" argument="--range 1-65535"/> - </constraint> - <constraintErrorMessage>Port number must be in range 1 to 65535</constraintErrorMessage> - </properties> + <defaultValue>162</defaultValue> </leafNode> </children> </tagNode> @@ -246,32 +206,14 @@ </constraint> <constraintErrorMessage>ID must contain an even number (from 2 to 36) of hex digits</constraintErrorMessage> </properties> + <defaultValue></defaultValue> </leafNode> <tagNode name="group"> <properties> <help>Specifies the group with name groupname</help> </properties> <children> - <leafNode name="mode"> - <properties> - <help>Define group access permission (default: 'ro')</help> - <completionHelp> - <list>ro rw</list> - </completionHelp> - <valueHelp> - <format>ro</format> - <description>read only</description> - </valueHelp> - <valueHelp> - <format>rw</format> - <description>read write</description> - </valueHelp> - <constraint> - <regex>^(ro|rw)$</regex> - </constraint> - <constraintErrorMessage>Authorization type must be either 'rw' or 'ro'</constraintErrorMessage> - </properties> - </leafNode> + #include <include/snmp/access-mode.xml.i> <leafNode name="seclevel"> <properties> <help>Security levels</help> @@ -284,7 +226,7 @@ </valueHelp> <valueHelp> <format>auth</format> - <description>Messages are authenticated but not encrypted (authNoPriv)</description> + <description>Messages are authenticated but not encrypted (authNoPriv, default)</description> </valueHelp> <valueHelp> <format>priv</format> @@ -294,6 +236,7 @@ <regex>^(noauth|auth|priv)$</regex> </constraint> </properties> + <defaultValue>auth</defaultValue> </leafNode> <leafNode name="view"> <properties> @@ -345,39 +288,12 @@ <constraintErrorMessage>Key must contain 8 or more characters</constraintErrorMessage> </properties> </leafNode> - <leafNode name="type"> - <properties> - <help>Defines the protocol used for authentication (default: 'md5')</help> - <completionHelp> - <list>md5 sha</list> - </completionHelp> - <valueHelp> - <format>md5</format> - <description>Message Digest 5</description> - </valueHelp> - <valueHelp> - <format>sha</format> - <description>Secure Hash Algorithm</description> - </valueHelp> - <constraint> - <regex>^(md5|sha)$</regex> - </constraint> - </properties> - </leafNode> + #include <include/snmp/authentication-type.xml.i> </children> </node> + #include <include/port-number.xml.i> <leafNode name="port"> - <properties> - <help>Specifies TCP/UDP port of destination SNMP traps/informs (default: '162')</help> - <valueHelp> - <format>u32:1-65535</format> - <description>Numeric IP port</description> - </valueHelp> - <constraint> - <validator name="numeric" argument="--range 1-65535"/> - </constraint> - <constraintErrorMessage>Port number must be in range 1 to 65535</constraintErrorMessage> - </properties> + <defaultValue>162</defaultValue> </leafNode> <node name="privacy"> <properties> @@ -402,54 +318,18 @@ <constraintErrorMessage>Key must contain 8 or more characters</constraintErrorMessage> </properties> </leafNode> - <leafNode name="type"> - <properties> - <help>Defines the protocol for privacy (default: 'des')</help> - <completionHelp> - <list>des aes</list> - </completionHelp> - <valueHelp> - <format>des</format> - <description>Data Encryption Standard</description> - </valueHelp> - <valueHelp> - <format>aes</format> - <description>Advanced Encryption Standard</description> - </valueHelp> - <constraint> - <regex>^(des|aes)$</regex> - </constraint> - </properties> - </leafNode> + #include <include/snmp/privacy-type.xml.i> </children> </node> - <leafNode name="protocol"> - <properties> - <help>Defines protocol for notification between TCP and UDP</help> - <completionHelp> - <list>tcp udp</list> - </completionHelp> - <valueHelp> - <format>tcp</format> - <description>Use Transmission Control Protocol for notifications</description> - </valueHelp> - <valueHelp> - <format>udp</format> - <description>Use User Datagram Protocol for notifications</description> - </valueHelp> - <constraint> - <regex>^(tcp|udp)$</regex> - </constraint> - </properties> - </leafNode> + #include <include/snmp/protocol.xml.i> <leafNode name="type"> <properties> - <help>Specifies the type of notification between inform and trap (default: 'inform')</help> + <help>Specifies the type of notification between inform and trap</help> <completionHelp> <list>inform trap</list> </completionHelp> <valueHelp> - <format>inform</format> + <format>inform (default)</format> <description>Use INFORM</description> </valueHelp> <valueHelp> @@ -460,6 +340,7 @@ <regex>^(inform|trap)$</regex> </constraint> </properties> + <defaultValue>inform</defaultValue> </leafNode> <leafNode name="user"> <properties> @@ -503,25 +384,7 @@ <constraintErrorMessage>Key must contain 8 or more characters</constraintErrorMessage> </properties> </leafNode> - <leafNode name="type"> - <properties> - <help>Defines the protocol used for authentication (default: 'md5')</help> - <completionHelp> - <list>md5 sha</list> - </completionHelp> - <valueHelp> - <format>md5</format> - <description>Message Digest 5</description> - </valueHelp> - <valueHelp> - <format>sha</format> - <description>Secure Hash Algorithm</description> - </valueHelp> - <constraint> - <regex>^(md5|sha)$</regex> - </constraint> - </properties> - </leafNode> + #include <include/snmp/authentication-type.xml.i> </children> </node> <leafNode name="group"> @@ -532,26 +395,7 @@ </completionHelp> </properties> </leafNode> - <leafNode name="mode"> - <properties> - <help>Define users access permission (default: 'ro')</help> - <completionHelp> - <list>ro rw</list> - </completionHelp> - <valueHelp> - <format>ro</format> - <description>read only</description> - </valueHelp> - <valueHelp> - <format>rw</format> - <description>read write</description> - </valueHelp> - <constraint> - <regex>^(ro|rw)$</regex> - </constraint> - <constraintErrorMessage>Authorization type must be either 'rw' or 'ro'</constraintErrorMessage> - </properties> - </leafNode> + #include <include/snmp/access-mode.xml.i> <node name="privacy"> <properties> <help>Defines the privacy</help> @@ -575,25 +419,7 @@ <constraintErrorMessage>Key must contain 8 or more characters</constraintErrorMessage> </properties> </leafNode> - <leafNode name="type"> - <properties> - <help>Defines the protocol for privacy (default: 'des')</help> - <completionHelp> - <list>des aes</list> - </completionHelp> - <valueHelp> - <format>des</format> - <description>Data Encryption Standard</description> - </valueHelp> - <valueHelp> - <format>aes</format> - <description>Advanced Encryption Standard</description> - </valueHelp> - <constraint> - <regex>^(des|aes)$</regex> - </constraint> - </properties> - </leafNode> + #include <include/snmp/privacy-type.xml.i> </children> </node> </children> diff --git a/python/vyos/template.py b/python/vyos/template.py index 29c6b3882..f694b53e0 100644 --- a/python/vyos/template.py +++ b/python/vyos/template.py @@ -489,3 +489,17 @@ def get_openvpn_ncp_ciphers(ciphers): else: out.append(cipher) return ':'.join(out).upper() + +@register_filter('snmp_auth_oid') +def snmp_auth_oid(type): + if type not in ['md5', 'sha', 'aes', 'des', 'none']: + raise ValueError() + + OIDs = { + 'md5' : '.1.3.6.1.6.3.10.1.1.2', + 'sha' : '.1.3.6.1.6.3.10.1.1.3', + 'aes' : '.1.3.6.1.6.3.10.1.2.4', + 'des' : '.1.3.6.1.6.3.10.1.2.2', + 'none': '.1.3.6.1.6.3.10.1.2.1' + } + return OIDs[type] diff --git a/src/conf_mode/snmp.py b/src/conf_mode/snmp.py index 8475e6808..8ce48780b 100755 --- a/src/conf_mode/snmp.py +++ b/src/conf_mode/snmp.py @@ -19,16 +19,18 @@ import os from sys import exit from vyos.config import Config +from vyos.configdict import dict_merge from vyos.configverify import verify_vrf from vyos.snmpv3_hashgen import plaintext_to_md5 from vyos.snmpv3_hashgen import plaintext_to_sha1 from vyos.snmpv3_hashgen import random from vyos.template import render -from vyos.template import is_ipv4 from vyos.util import call from vyos.util import chmod_755 +from vyos.util import dict_search from vyos.validate import is_addr_assigned from vyos.version import get_version_data +from vyos.xml import defaults from vyos import ConfigError from vyos import airbag airbag.enable() @@ -37,57 +39,29 @@ config_file_client = r'/etc/snmp/snmp.conf' config_file_daemon = r'/etc/snmp/snmpd.conf' config_file_access = r'/usr/share/snmp/snmpd.conf' config_file_user = r'/var/lib/snmp/snmpd.conf' -default_script_dir = r'/config/user-data/' systemd_override = r'/etc/systemd/system/snmpd.service.d/override.conf' +systemd_service = 'snmpd.service' -# SNMP OIDs used to mark auth/priv type -OIDs = { - 'md5' : '.1.3.6.1.6.3.10.1.1.2', - 'sha' : '.1.3.6.1.6.3.10.1.1.3', - 'aes' : '.1.3.6.1.6.3.10.1.2.4', - 'des' : '.1.3.6.1.6.3.10.1.2.2', - 'none': '.1.3.6.1.6.3.10.1.2.1' -} - -default_config_data = { - 'listen_on': [], - 'listen_address': [], - 'ipv6_enabled': 'True', - 'communities': [], - 'smux_peers': [], - 'location' : '', - 'protocol' : 'udp', - 'description' : '', - 'contact' : '', - 'route_table': 'False', - 'trap_source': '', - 'trap_targets': [], - 'vyos_user': '', - 'vyos_user_pass': '', - 'version': '', - 'v3_enabled': 'False', - 'v3_engineid': '', - 'v3_groups': [], - 'v3_traps': [], - 'v3_users': [], - 'v3_views': [], - 'script_ext': [] -} - -def rmfile(file): - if os.path.isfile(file): - os.unlink(file) - -def get_config(): - snmp = default_config_data - conf = Config() - if not conf.exists('service snmp'): - return None +def get_config(config=None): + if config: + conf = config else: - if conf.exists('system ipv6 disable'): - snmp['ipv6_enabled'] = False + conf = Config() + base = ['service', 'snmp'] + + snmp = conf.get_config_dict(base, key_mangling=('-', '_'), + get_first_key=True, no_tag_node_value_mangle=True) + if not conf.exists(base): + snmp.update({'deleted' : ''}) + + if conf.exists(['service', 'lldp', 'snmp', 'enable']): + snmp.update({'lldp_snmp' : ''}) - conf.set_level('service snmp') + if conf.exists(['system', 'ipv6', 'disable']): + snmp.update({'ipv6_disabled' : ''}) + + if 'deleted' in snmp: + return snmp version_data = get_version_data() snmp['version'] = version_data['version'] @@ -96,470 +70,207 @@ def get_config(): snmp['vyos_user'] = 'vyos' + random(8) snmp['vyos_user_pass'] = random(16) - if conf.exists('community'): - for name in conf.list_nodes('community'): - community = { - 'name': name, - 'authorization': 'ro', - 'network_v4': [], - 'network_v6': [], - 'has_source' : False - } - - if conf.exists('community {0} authorization'.format(name)): - community['authorization'] = conf.return_value('community {0} authorization'.format(name)) - - # Subnet of SNMP client(s) allowed to contact system - if conf.exists('community {0} network'.format(name)): - for addr in conf.return_values('community {0} network'.format(name)): - if is_ipv4(addr): - community['network_v4'].append(addr) - else: - community['network_v6'].append(addr) - - # IP address of SNMP client allowed to contact system - if conf.exists('community {0} client'.format(name)): - for addr in conf.return_values('community {0} client'.format(name)): - if is_ipv4(addr): - community['network_v4'].append(addr) - else: - community['network_v6'].append(addr) - - if (len(community['network_v4']) > 0) or (len(community['network_v6']) > 0): - community['has_source'] = True - - snmp['communities'].append(community) - - if conf.exists('contact'): - snmp['contact'] = conf.return_value('contact') - - if conf.exists('description'): - snmp['description'] = conf.return_value('description') - - if conf.exists('listen-address'): - for addr in conf.list_nodes('listen-address'): - port = '161' - if conf.exists('listen-address {0} port'.format(addr)): - port = conf.return_value('listen-address {0} port'.format(addr)) - - snmp['listen_address'].append((addr, port)) + # We have gathered the dict representation of the CLI, but there are default + # options which we need to update into the dictionary retrived. + default_values = defaults(base) + + # We can not merge defaults for tagNodes - those need to be blended in + # per tagNode instance + if 'listen_address' in default_values: + del default_values['listen_address'] + if 'community' in default_values: + del default_values['community'] + if 'trap_target' in default_values: + del default_values['trap_target'] + if 'v3' in default_values: + del default_values['v3'] + snmp = dict_merge(default_values, snmp) + + if 'listen_address' in snmp: + default_values = defaults(base + ['listen-address']) + for address in snmp['listen_address']: + snmp['listen_address'][address] = dict_merge( + default_values, snmp['listen_address'][address]) # Always listen on localhost if an explicit address has been configured # This is a safety measure to not end up with invalid listen addresses # that are not configured on this system. See https://phabricator.vyos.net/T850 - if not '127.0.0.1' in conf.list_nodes('listen-address'): - snmp['listen_address'].append(('127.0.0.1', '161')) - - if not '::1' in conf.list_nodes('listen-address'): - snmp['listen_address'].append(('::1', '161')) - - if conf.exists('location'): - snmp['location'] = conf.return_value('location') - - if conf.exists('protocol'): - snmp['protocol'] = conf.return_value('protocol') - - if conf.exists('smux-peer'): - snmp['smux_peers'] = conf.return_values('smux-peer') - - if conf.exists('trap-source'): - snmp['trap_source'] = conf.return_value('trap-source') - - if conf.exists('trap-target'): - for target in conf.list_nodes('trap-target'): - trap_tgt = { - 'target': target, - 'community': '', - 'port': '' - } - - if conf.exists('trap-target {0} community'.format(target)): - trap_tgt['community'] = conf.return_value('trap-target {0} community'.format(target)) - - if conf.exists('trap-target {0} port'.format(target)): - trap_tgt['port'] = conf.return_value('trap-target {0} port'.format(target)) - - snmp['trap_targets'].append(trap_tgt) - - if conf.exists('script-extensions'): - for extname in conf.list_nodes('script-extensions extension-name'): - conf_script = conf.return_value('script-extensions extension-name {} script'.format(extname)) - # if script has not absolute path, use pre configured path - if "/" not in conf_script: - conf_script = default_script_dir + conf_script - - extension = { - 'name': extname, - 'script' : conf_script - } - - snmp['script_ext'].append(extension) - - if conf.exists('oid-enable route-table'): - snmp['route_table'] = True - - if conf.exists('vrf'): - # Append key to dict but don't place it in the default dictionary. - # This is required to make the override.conf.tmpl work until we - # migrate to get_config_dict(). - snmp['vrf'] = conf.return_value('vrf') - - - ######################################################################### - # ____ _ _ __ __ ____ _____ # - # / ___|| \ | | \/ | _ \ __ _|___ / # - # \___ \| \| | |\/| | |_) | \ \ / / |_ \ # - # ___) | |\ | | | | __/ \ V / ___) | # - # |____/|_| \_|_| |_|_| \_/ |____/ # - # # - # now take care about the fancy SNMP v3 stuff, or bail out eraly # - ######################################################################### - if not conf.exists('v3'): - return snmp - else: - snmp['v3_enabled'] = True - - # 'set service snmp v3 engineid' - if conf.exists('v3 engineid'): - snmp['v3_engineid'] = conf.return_value('v3 engineid') - - # 'set service snmp v3 group' - if conf.exists('v3 group'): - for group in conf.list_nodes('v3 group'): - v3_group = { - 'name': group, - 'mode': 'ro', - 'seclevel': 'auth', - 'view': '' - } - - if conf.exists('v3 group {0} mode'.format(group)): - v3_group['mode'] = conf.return_value('v3 group {0} mode'.format(group)) - - if conf.exists('v3 group {0} seclevel'.format(group)): - v3_group['seclevel'] = conf.return_value('v3 group {0} seclevel'.format(group)) - - if conf.exists('v3 group {0} view'.format(group)): - v3_group['view'] = conf.return_value('v3 group {0} view'.format(group)) - - snmp['v3_groups'].append(v3_group) - - # 'set service snmp v3 trap-target' - if conf.exists('v3 trap-target'): - for trap in conf.list_nodes('v3 trap-target'): - trap_cfg = { - 'ipAddr': trap, - 'secName': '', - 'authProtocol': 'md5', - 'authPassword': '', - 'authMasterKey': '', - 'privProtocol': 'des', - 'privPassword': '', - 'privMasterKey': '', - 'ipProto': 'udp', - 'ipPort': '162', - 'type': '', - 'secLevel': 'noAuthNoPriv' - } - - if conf.exists('v3 trap-target {0} user'.format(trap)): - # Set the securityName used for authenticated SNMPv3 messages. - trap_cfg['secName'] = conf.return_value('v3 trap-target {0} user'.format(trap)) - - if conf.exists('v3 trap-target {0} auth type'.format(trap)): - # Set the authentication protocol (MD5 or SHA) used for authenticated SNMPv3 messages - # cmdline option '-a' - trap_cfg['authProtocol'] = conf.return_value('v3 trap-target {0} auth type'.format(trap)) - - if conf.exists('v3 trap-target {0} auth plaintext-password'.format(trap)): - # Set the authentication pass phrase used for authenticated SNMPv3 messages. - # cmdline option '-A' - trap_cfg['authPassword'] = conf.return_value('v3 trap-target {0} auth plaintext-password'.format(trap)) - - if conf.exists('v3 trap-target {0} auth encrypted-password'.format(trap)): - # Sets the keys to be used for SNMPv3 transactions. These options allow you to set the master authentication keys. - # cmdline option '-3m' - trap_cfg['authMasterKey'] = conf.return_value('v3 trap-target {0} auth encrypted-password'.format(trap)) - - if conf.exists('v3 trap-target {0} privacy type'.format(trap)): - # Set the privacy protocol (DES or AES) used for encrypted SNMPv3 messages. - # cmdline option '-x' - trap_cfg['privProtocol'] = conf.return_value('v3 trap-target {0} privacy type'.format(trap)) - - if conf.exists('v3 trap-target {0} privacy plaintext-password'.format(trap)): - # Set the privacy pass phrase used for encrypted SNMPv3 messages. - # cmdline option '-X' - trap_cfg['privPassword'] = conf.return_value('v3 trap-target {0} privacy plaintext-password'.format(trap)) - - if conf.exists('v3 trap-target {0} privacy encrypted-password'.format(trap)): - # Sets the keys to be used for SNMPv3 transactions. These options allow you to set the master encryption keys. - # cmdline option '-3M' - trap_cfg['privMasterKey'] = conf.return_value('v3 trap-target {0} privacy encrypted-password'.format(trap)) - - if conf.exists('v3 trap-target {0} protocol'.format(trap)): - trap_cfg['ipProto'] = conf.return_value('v3 trap-target {0} protocol'.format(trap)) - - if conf.exists('v3 trap-target {0} port'.format(trap)): - trap_cfg['ipPort'] = conf.return_value('v3 trap-target {0} port'.format(trap)) - - if conf.exists('v3 trap-target {0} type'.format(trap)): - trap_cfg['type'] = conf.return_value('v3 trap-target {0} type'.format(trap)) - - # Determine securityLevel used for SNMPv3 messages (noAuthNoPriv|authNoPriv|authPriv). - # Appropriate pass phrase(s) must provided when using any level higher than noAuthNoPriv. - if trap_cfg['authPassword'] or trap_cfg['authMasterKey']: - if trap_cfg['privProtocol'] or trap_cfg['privPassword']: - trap_cfg['secLevel'] = 'authPriv' - else: - trap_cfg['secLevel'] = 'authNoPriv' - - snmp['v3_traps'].append(trap_cfg) - - # 'set service snmp v3 user' - if conf.exists('v3 user'): - for user in conf.list_nodes('v3 user'): - user_cfg = { - 'name': user, - 'authMasterKey': '', - 'authPassword': '', - 'authProtocol': 'md5', - 'authOID': 'none', - 'group': '', - 'mode': 'ro', - 'privMasterKey': '', - 'privPassword': '', - 'privOID': '', - 'privProtocol': 'des' - } - - # v3 user {0} auth - if conf.exists('v3 user {0} auth encrypted-password'.format(user)): - user_cfg['authMasterKey'] = conf.return_value('v3 user {0} auth encrypted-password'.format(user)) - - if conf.exists('v3 user {0} auth plaintext-password'.format(user)): - user_cfg['authPassword'] = conf.return_value('v3 user {0} auth plaintext-password'.format(user)) - - # load default value - type = user_cfg['authProtocol'] - if conf.exists('v3 user {0} auth type'.format(user)): - type = conf.return_value('v3 user {0} auth type'.format(user)) - - # (re-)update with either default value or value from CLI - user_cfg['authProtocol'] = type - user_cfg['authOID'] = OIDs[type] - - # v3 user {0} group - if conf.exists('v3 user {0} group'.format(user)): - user_cfg['group'] = conf.return_value('v3 user {0} group'.format(user)) - - # v3 user {0} mode - if conf.exists('v3 user {0} mode'.format(user)): - user_cfg['mode'] = conf.return_value('v3 user {0} mode'.format(user)) - - # v3 user {0} privacy - if conf.exists('v3 user {0} privacy encrypted-password'.format(user)): - user_cfg['privMasterKey'] = conf.return_value('v3 user {0} privacy encrypted-password'.format(user)) - - if conf.exists('v3 user {0} privacy plaintext-password'.format(user)): - user_cfg['privPassword'] = conf.return_value('v3 user {0} privacy plaintext-password'.format(user)) - - # load default value - type = user_cfg['privProtocol'] - if conf.exists('v3 user {0} privacy type'.format(user)): - type = conf.return_value('v3 user {0} privacy type'.format(user)) - - # (re-)update with either default value or value from CLI - user_cfg['privProtocol'] = type - user_cfg['privOID'] = OIDs[type] - - snmp['v3_users'].append(user_cfg) - - # 'set service snmp v3 view' - if conf.exists('v3 view'): - for view in conf.list_nodes('v3 view'): - view_cfg = { - 'name': view, - 'oids': [] - } - - if conf.exists('v3 view {0} oid'.format(view)): - for oid in conf.list_nodes('v3 view {0} oid'.format(view)): - oid_cfg = { - 'oid': oid - } - view_cfg['oids'].append(oid_cfg) - snmp['v3_views'].append(view_cfg) + if '127.0.0.1' not in snmp['listen_address']: + tmp = {'127.0.0.1': {'port': '161'}} + snmp['listen_address'] = dict_merge(tmp, snmp['listen_address']) + + if '::1' not in snmp['listen_address']: + if 'ipv6_disabled' not in snmp: + tmp = {'::1': {'port': '161'}} + snmp['listen_address'] = dict_merge(tmp, snmp['listen_address']) + + if 'community' in snmp: + default_values = defaults(base + ['community']) + for community in snmp['community']: + snmp['community'][community] = dict_merge( + default_values, snmp['community'][community]) + + if 'trap_target' in snmp: + default_values = defaults(base + ['trap-target']) + for trap in snmp['trap_target']: + snmp['trap_target'][trap] = dict_merge( + default_values, snmp['trap_target'][trap]) + + if 'v3' in snmp: + default_values = defaults(base + ['v3']) + # tagNodes need to be merged in individually later on + for tmp in ['user', 'group', 'trap_target']: + del default_values[tmp] + snmp['v3'] = dict_merge(default_values, snmp['v3']) + + for user_group in ['user', 'group']: + if user_group in snmp['v3']: + default_values = defaults(base + ['v3', user_group]) + for tmp in snmp['v3'][user_group]: + snmp['v3'][user_group][tmp] = dict_merge( + default_values, snmp['v3'][user_group][tmp]) + + if 'trap_target' in snmp['v3']: + default_values = defaults(base + ['v3', 'trap-target']) + for trap in snmp['v3']['trap_target']: + snmp['v3']['trap_target'][trap] = dict_merge( + default_values, snmp['v3']['trap_target'][trap]) return snmp def verify(snmp): - if snmp is None: - # we can not delete SNMP when LLDP is configured with SNMP - conf = Config() - if conf.exists('service lldp snmp enable'): - raise ConfigError('Can not delete SNMP service, as LLDP still uses SNMP!') - + if not snmp: return None + if {'deleted', 'lldp_snmp'} <= set(snmp): + raise ConfigError('Can not delete SNMP service, as LLDP still uses SNMP!') + ### check if the configured script actually exist - if snmp['script_ext']: - for ext in snmp['script_ext']: - if not os.path.isfile(ext['script']): - print ("WARNING: script: {} doesn't exist".format(ext['script'])) + if 'script_extensions' in snmp and 'extension_name' in snmp['script_extensions']: + for extension, extension_opt in snmp['script_extensions']['extension_name'].items(): + if 'script' not in extension_opt: + raise ConfigError(f'Script extension "{extension}" requires an actual script to be configured!') + + tmp = extension_opt['script'] + if not os.path.isfile(tmp): + print(f'WARNING: script "{tmp}" does not exist!') else: - chmod_755(ext['script']) - - for listen in snmp['listen_address']: - addr = listen[0] - port = listen[1] - protocol = snmp['protocol'] - - tmp = None - if is_ipv4(addr): - # example: udp:127.0.0.1:161 - tmp = f'{protocol}:{addr}:{port}' - elif snmp['ipv6_enabled']: - # example: udp6:[::1]:161 - tmp = f'{protocol}6:[{addr}]:{port}' - - # We only wan't to configure addresses that exist on the system. - # Hint the user if they don't exist - if is_addr_assigned(addr): - if tmp: snmp['listen_on'].append(tmp) - else: - print(f'WARNING: SNMP listen address {addr} not configured!') + chmod_755(extension_opt['script']) + + if 'listen_address' in snmp: + for address in snmp['listen_address']: + # We only wan't to configure addresses that exist on the system. + # Hint the user if they don't exist + if not is_addr_assigned(address): + print(f'WARNING: SNMP listen address "{address}" not configured!') + + if 'trap_target' in snmp: + for trap, trap_config in snmp['trap_target'].items(): + if 'community' not in trap_config: + raise ConfigError(f'Trap target "{trap}" requires a community to be set!') verify_vrf(snmp) # bail out early if SNMP v3 is not configured - if not snmp['v3_enabled']: + if 'v3' not in snmp: return None - if 'v3_groups' in snmp.keys(): - for group in snmp['v3_groups']: - # - # A view must exist prior to mapping it into a group - # - if 'view' in group.keys(): - error = True - if 'v3_views' in snmp.keys(): - for view in snmp['v3_views']: - if view['name'] == group['view']: - error = False - if error: - raise ConfigError('You must create view "{0}" first'.format(group['view'])) - else: - raise ConfigError('"view" must be specified') - - if not 'mode' in group.keys(): - raise ConfigError('"mode" must be specified') - - if not 'seclevel' in group.keys(): - raise ConfigError('"seclevel" must be specified') - - if 'v3_traps' in snmp.keys(): - for trap in snmp['v3_traps']: - if trap['authPassword'] and trap['authMasterKey']: - raise ConfigError('Must specify only one of encrypted-password/plaintext-key for trap auth') - - if trap['authPassword'] == '' and trap['authMasterKey'] == '': - raise ConfigError('Must specify encrypted-password or plaintext-key for trap auth') - - if trap['privPassword'] and trap['privMasterKey']: - raise ConfigError('Must specify only one of encrypted-password/plaintext-key for trap privacy') + if 'user' in snmp['v3']: + for user, user_config in snmp['v3']['user'].items(): + if 'group' not in user_config: + raise ConfigError(f'Group membership required for user "{user}"!') - if trap['privPassword'] == '' and trap['privMasterKey'] == '': - raise ConfigError('Must specify encrypted-password or plaintext-key for trap privacy') + if 'plaintext_password' not in user_config['auth'] and 'encrypted_password' not in user_config['auth']: + raise ConfigError(f'Must specify authentication encrypted-password or plaintext-password for user "{user}"!') - if not 'type' in trap.keys(): - raise ConfigError('v3 trap: "type" must be specified') + if 'plaintext_password' not in user_config['privacy'] and 'encrypted_password' not in user_config['privacy']: + raise ConfigError(f'Must specify privacy encrypted-password or plaintext-password for user "{user}"!') - if not 'authPassword' and 'authMasterKey' in trap.keys(): - raise ConfigError('v3 trap: "auth" must be specified') + if 'group' in snmp['v3']: + for group, group_config in snmp['v3']['group'].items(): + if 'seclevel' not in group_config: + raise ConfigError(f'Must configure "seclevel" for group "{group}"!') + if 'view' not in group_config: + raise ConfigError(f'Must configure "view" for group "{group}"!') - if not 'authProtocol' in trap.keys(): - raise ConfigError('v3 trap: "protocol" must be specified') + # Check if 'view' exists + view = group_config['view'] + if 'view' not in snmp['v3'] or view not in snmp['v3']['view']: + raise ConfigError(f'You must create view "{view}" first!') - if not 'privPassword' and 'privMasterKey' in trap.keys(): - raise ConfigError('v3 trap: "user" must be specified') + if 'view' in snmp['v3']: + for view, view_config in snmp['v3']['view'].items(): + if 'oid' not in view_config: + raise ConfigError(f'Must configure an "oid" for view "{view}"!') - if 'v3_users' in snmp.keys(): - for user in snmp['v3_users']: - # - # Group must exist prior to mapping it into a group - # seclevel will be extracted from group - # - if 'group' not in user or user['group'] == '': - username = user['name'] - raise ConfigError(f'Group membership required for user "{username}"!') + if 'trap_target' in snmp['v3']: + for trap, trap_config in snmp['v3']['trap_target'].items(): + if 'plaintext_password' not in trap_config['auth'] and 'encrypted_password' not in trap_config['auth']: + raise ConfigError(f'Must specify one of authentication encrypted-password or plaintext-password for trap "{trap}"!') - if user['group']: - error = True - if 'v3_groups' in snmp.keys(): - for group in snmp['v3_groups']: - if group['name'] == user['group']: - seclevel = group['seclevel'] - error = False + if {'plaintext_password', 'encrypted_password'} <= set(trap_config['auth']): + raise ConfigError(f'Can not specify both authentication encrypted-password and plaintext-password for trap "{trap}"!') - if error: - raise ConfigError('You must create group "{0}" first'.format(user['group'])) + if 'plaintext_password' not in trap_config['privacy'] and 'encrypted_password' not in trap_config['privacy']: + raise ConfigError(f'Must specify one of privacy encrypted-password or plaintext-password for trap "{trap}"!') - # Depending on the configured security level the user has to provide additional info - if (not user['authPassword'] and not user['authMasterKey']): - raise ConfigError('Must specify encrypted-password or plaintext-key for user auth') + if {'plaintext_password', 'encrypted_password'} <= set(trap_config['privacy']): + raise ConfigError(f'Can not specify both privacy encrypted-password and plaintext-password for trap "{trap}"!') - if user['privPassword'] == '' and user['privMasterKey'] == '': - raise ConfigError('Must specify encrypted-password or plaintext-key for user privacy') - - if user['mode'] == '': - raise ConfigError('Must specify user mode ro/rw') - - if 'v3_views' in snmp.keys(): - for view in snmp['v3_views']: - if not view['oids']: - raise ConfigError('Must configure an oid') + if 'type' not in trap_config: + raise ConfigError('SNMP v3 trap "type" must be specified!') return None def generate(snmp): + # # As we are manipulating the snmpd user database we have to stop it first! # This is even save if service is going to be removed - call('systemctl stop snmpd.service') - config_files = [config_file_client, config_file_daemon, config_file_access, - config_file_user, systemd_override] + call(f'systemctl stop {systemd_service}') + # Clean config files + config_files = [config_file_client, config_file_daemon, + config_file_access, config_file_user, systemd_override] for file in config_files: - rmfile(file) + if os.path.isfile(file): + os.unlink(file) if not snmp: return None - if 'v3_users' in snmp.keys(): + if 'v3' in snmp: # net-snmp is now regenerating the configuration file in the background # thus we need to re-open and re-read the file as the content changed. # After that we can no read the encrypted password from the config and # replace the CLI plaintext password with its encrypted version. - os.environ["vyos_libexec_dir"] = "/usr/libexec/vyos" + os.environ['vyos_libexec_dir'] = '/usr/libexec/vyos' - for user in snmp['v3_users']: - if user['authProtocol'] == 'sha': - hash = plaintext_to_sha1 - else: - hash = plaintext_to_md5 + if 'user' in snmp['v3']: + for user, user_config in snmp['v3']['user'].items(): + if dict_search('auth.type', user_config) == 'sha': + hash = plaintext_to_sha1 + else: + hash = plaintext_to_md5 + + if dict_search('auth.plaintext_password', user_config) is not None: + tmp = hash(dict_search('auth.plaintext_password', user_config), + dict_search('v3.engineid', snmp)) + + snmp['v3']['user'][user]['auth']['encrypted_password'] = tmp + del snmp['v3']['user'][user]['auth']['plaintext_password'] - if user['authPassword']: - user['authMasterKey'] = hash(user['authPassword'], snmp['v3_engineid']) - user['authPassword'] = '' + call(f'/opt/vyatta/sbin/my_set service snmp v3 user "{user}" auth encrypted-password "{tmp}" > /dev/null') + call(f'/opt/vyatta/sbin/my_delete service snmp v3 user "{user}" auth plaintext-password > /dev/null') - call('/opt/vyatta/sbin/my_set service snmp v3 user "{name}" auth encrypted-password "{authMasterKey}" > /dev/null'.format(**user)) - call('/opt/vyatta/sbin/my_delete service snmp v3 user "{name}" auth plaintext-password > /dev/null'.format(**user)) + if dict_search('privacy.plaintext_password', user_config) is not None: + tmp = hash(dict_search('privacy.plaintext_password', user_config), + dict_search('v3.engineid', snmp)) - if user['privPassword']: - user['privMasterKey'] = hash(user['privPassword'], snmp['v3_engineid']) - user['privPassword'] = '' + snmp['v3']['user'][user]['privacy']['encrypted_password'] = tmp + del snmp['v3']['user'][user]['privacy']['plaintext_password'] - call('/opt/vyatta/sbin/my_set service snmp v3 user "{name}" privacy encrypted-password "{privMasterKey}" > /dev/null'.format(**user)) - call('/opt/vyatta/sbin/my_delete service snmp v3 user "{name}" privacy plaintext-password > /dev/null'.format(**user)) + call(f'/opt/vyatta/sbin/my_set service snmp v3 user "{user}" privacy encrypted-password "{tmp}" > /dev/null') + call(f'/opt/vyatta/sbin/my_delete service snmp v3 user "{user}" privacy plaintext-password > /dev/null') # Write client config file render(config_file_client, 'snmp/etc.snmp.conf.tmpl', snmp) @@ -582,7 +293,7 @@ def apply(snmp): return None # start SNMP daemon - call('systemctl restart snmpd.service') + call(f'systemctl restart {systemd_service}') # Enable AgentX in FRR call('vtysh -c "configure terminal" -c "agentx" >/dev/null') |