[Filebeat] Enable dynamic inputs (TCP) for Cisco syslog modules

CHANGELOG.next.asciidoc

@@ -351,6 +351,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Improve error handling in aws-s3 input for malformed s3 notifications. {issue}28828[28828] {pull}28946[28946]
 - Add support for parsers on journald input {pull}29070[29070]
 - Add support in httpjson input for oAuth2ProviderDefault of password grant_type. {pull}29087[29087]
+- Update Cisco module to enable TCP input. {issue}26118[26118] {issue}28821[28821] {pull}26159[26159]
 
 *Heartbeat*
 

x-pack/filebeat/filebeat.reference.yml

@@ -625,16 +625,23 @@ filebeat.modules:
   asa:
     enabled: false
 
-    # Set which input to use between syslog (default) or file.
-    #var.input: syslog
+    # Set which input to use between udp (default), tcp or file.
+    #var.input: udp
 
-    # The interface to listen to UDP based syslog traffic. Defaults to
+    # The interface to listen to udp or tcp syslog traffic. Defaults to
     # localhost. Set to 0.0.0.0 to bind to all available interfaces.
     #var.syslog_host: localhost
 
-    # The UDP port to listen for syslog traffic. Defaults to 9001.
+    # The port to listen for udp or tcp syslog traffic. Defaults to 9001.
     #var.syslog_port: 9001
 
+    # With tcp input, set the optional tls configuration:
+    #var.ssl:
+    #  enabled: true
+    #  certificate: /path/to/cert.pem
+    #  key: /path/to/privatekey.pem
+    #  key_passphrase: 'password for my key'
+
     # Set the log level from 1 (alerts only) to 7 (include all messages).
     # Messages with a log level higher than the specified will be dropped.
     # See https://www.cisco.com/c/en/us/td/docs/security/asa/syslog/b_syslog/syslogs-sev-level.html
@@ -651,16 +658,23 @@ filebeat.modules:
   ftd:
     enabled: false
 
-    # Set which input to use between syslog (default) or file.
-    #var.input: syslog
+    # Set which input to use between udp (default), tcp or file.
+    #var.input: udp
 
-    # The interface to listen to UDP based syslog traffic. Defaults to
+    # The interface to listen to tcp or udp syslog traffic. Defaults to
     # localhost. Set to 0.0.0.0 to bind to all available interfaces.
     #var.syslog_host: localhost
 
-    # The UDP port to listen for syslog traffic. Defaults to 9003.
+    # The UDP port to listen for tcp or udp syslog traffic. Defaults to 9003.
     #var.syslog_port: 9003
 
+    # With tcp input, set the optional tls configuration:
+    #var.ssl:
+    #  enabled: true
+    #  certificate: /path/to/cert.pem
+    #  key: /path/to/privatekey.pem
+    #  key_passphrase: 'password for my key'
+
     # Set the log level from 1 (alerts only) to 7 (include all messages).
     # Messages with a log level higher than the specified will be dropped.
     # See https://www.cisco.com/c/en/us/td/docs/security/firepower/Syslogs/b_fptd_syslog_guide/syslogs-sev-level.html
@@ -680,13 +694,16 @@ filebeat.modules:
     # Set which input to use between syslog (default) or file.
     #var.input: syslog
 
-    # The interface to listen to UDP based syslog traffic. Defaults to
+    # The interface to listen to syslog traffic. Defaults to
     # localhost. Set to 0.0.0.0 to bind to all available interfaces.
     #var.syslog_host: localhost
 
-    # The UDP port to listen for syslog traffic. Defaults to 9002.
+    # The port to listen on for syslog traffic. Defaults to 9002.
     #var.syslog_port: 9002
 
+    # Set which protocol to use between udp (default) or tcp.
+    #var.syslog_protocol: udp
+
     # Set custom paths for the log files when using file input. If left empty,
     # Filebeat will choose the paths depending on your OS.
     #var.paths:

x-pack/filebeat/module/cisco/_meta/config.yml

@@ -2,16 +2,23 @@
   asa:
     enabled: false
 
-    # Set which input to use between syslog (default) or file.
-    #var.input: syslog
+    # Set which input to use between udp (default), tcp or file.
+    #var.input: udp
 
-    # The interface to listen to UDP based syslog traffic. Defaults to
+    # The interface to listen to udp or tcp syslog traffic. Defaults to
     # localhost. Set to 0.0.0.0 to bind to all available interfaces.
     #var.syslog_host: localhost
 
-    # The UDP port to listen for syslog traffic. Defaults to 9001.
+    # The port to listen for udp or tcp syslog traffic. Defaults to 9001.
     #var.syslog_port: 9001
 
+    # With tcp input, set the optional tls configuration:
+    #var.ssl:
+    #  enabled: true
+    #  certificate: /path/to/cert.pem
+    #  key: /path/to/privatekey.pem
+    #  key_passphrase: 'password for my key'
+
     # Set the log level from 1 (alerts only) to 7 (include all messages).
     # Messages with a log level higher than the specified will be dropped.
     # See https://www.cisco.com/c/en/us/td/docs/security/asa/syslog/b_syslog/syslogs-sev-level.html
@@ -28,16 +35,23 @@
   ftd:
     enabled: false
 
-    # Set which input to use between syslog (default) or file.
-    #var.input: syslog
+    # Set which input to use between udp (default), tcp or file.
+    #var.input: udp
 
-    # The interface to listen to UDP based syslog traffic. Defaults to
+    # The interface to listen to tcp or udp syslog traffic. Defaults to
     # localhost. Set to 0.0.0.0 to bind to all available interfaces.
     #var.syslog_host: localhost
 
-    # The UDP port to listen for syslog traffic. Defaults to 9003.
+    # The UDP port to listen for tcp or udp syslog traffic. Defaults to 9003.
     #var.syslog_port: 9003
 
+    # With tcp input, set the optional tls configuration:
+    #var.ssl:
+    #  enabled: true
+    #  certificate: /path/to/cert.pem
+    #  key: /path/to/privatekey.pem
+    #  key_passphrase: 'password for my key'
+
     # Set the log level from 1 (alerts only) to 7 (include all messages).
     # Messages with a log level higher than the specified will be dropped.
     # See https://www.cisco.com/c/en/us/td/docs/security/firepower/Syslogs/b_fptd_syslog_guide/syslogs-sev-level.html
@@ -57,13 +71,16 @@
     # Set which input to use between syslog (default) or file.
     #var.input: syslog
 
-    # The interface to listen to UDP based syslog traffic. Defaults to
+    # The interface to listen to syslog traffic. Defaults to
     # localhost. Set to 0.0.0.0 to bind to all available interfaces.
     #var.syslog_host: localhost
 
-    # The UDP port to listen for syslog traffic. Defaults to 9002.
+    # The port to listen on for syslog traffic. Defaults to 9002.
     #var.syslog_port: 9002
 
+    # Set which protocol to use between udp (default) or tcp.
+    #var.syslog_protocol: udp
+
     # Set custom paths for the log files when using file input. If left empty,
     # Filebeat will choose the paths depending on your OS.
     #var.paths:

x-pack/filebeat/module/cisco/asa/config/input.yml

@@ -1,10 +1,4 @@
-{{ if eq .input "syslog" }}
-
-type: udp
-udp:
-host: "{{.syslog_host}}:{{.syslog_port}}"
-
-{{ else if eq .input "file" }}
+{{ if eq .input "file" }}
 
 type: log
 paths:
@@ -13,6 +7,12 @@ paths:
 {{ end }}
 exclude_files: [".gz$"]
 
+{{ else }}
+
+type: {{.input}}
+host: "{{.syslog_host}}:{{.syslog_port}}"
+ssl: {{ .ssl | tojson }}
+
 {{ end }}
 
 tags: {{.tags | tojson}}

x-pack/filebeat/module/cisco/asa/manifest.yml

@@ -11,7 +11,8 @@ var:
   - name: syslog_port
     default: 9001
   - name: input
-    default: syslog
+    default: udp
+  - name: ssl
   - name: log_level
     default: 7
     # if ES < 6.1.0, this flag switches to false automatically when evaluating the

x-pack/filebeat/module/cisco/ftd/config/input.yml

@@ -1,9 +1,4 @@
-{{ if eq .input "syslog" }}
-
-type: udp
-host: "{{.syslog_host}}:{{.syslog_port}}"
-
-{{ else if eq .input "file" }}
+{{ if eq .input "file" }}
 
 type: log
 paths:
@@ -12,6 +7,12 @@ paths:
 {{ end }}
 exclude_files: [".gz$"]
 
+{{ else }}
+
+type: {{.input}}
+host: "{{.syslog_host}}:{{.syslog_port}}"
+ssl: {{ .ssl | tojson }}
+
 {{ end }}
 
 tags: {{.tags | tojson}}

x-pack/filebeat/module/cisco/ftd/manifest.yml

@@ -11,7 +11,8 @@ var:
   - name: syslog_port
     default: 9003
   - name: input
-    default: syslog
+    default: udp
+  - name: ssl
   - name: log_level
     default: 7
     # if ES < 6.1.0, this flag switches to false automatically when evaluating the

x-pack/filebeat/module/cisco/ios/config/input.yml

@@ -1,10 +1,4 @@
-{{ if eq .input "syslog" }}
-
-type: syslog
-protocol.udp:
-  host: "{{.syslog_host}}:{{.syslog_port}}"
-
-{{ else if eq .input "file" }}
+{{ if eq .input "file" }}
 
 type: log
 paths:
@@ -13,6 +7,12 @@ paths:
 {{ end }}
 exclude_files: [".gz$"]
 
+{{ else if eq .input "syslog" }}
+
+type: syslog
+protocol.{{.syslog_protocol}}:
+  host: "{{.syslog_host}}:{{.syslog_port}}"
+
 {{ end }}
 
 tags: {{.tags | tojson}}

x-pack/filebeat/module/cisco/ios/manifest.yml

@@ -10,6 +10,8 @@ var:
     default: localhost
   - name: syslog_port
     default: 9002
+  - name: syslog_protocol
+    default: udp
   - name: input
     default: syslog
 

x-pack/filebeat/modules.d/cisco.yml.disabled

@@ -5,16 +5,23 @@
   asa:
     enabled: false
 
-    # Set which input to use between syslog (default) or file.
-    #var.input: syslog
+    # Set which input to use between udp (default), tcp or file.
+    #var.input: udp
 
-    # The interface to listen to UDP based syslog traffic. Defaults to
+    # The interface to listen to udp or tcp syslog traffic. Defaults to
     # localhost. Set to 0.0.0.0 to bind to all available interfaces.
     #var.syslog_host: localhost
 
-    # The UDP port to listen for syslog traffic. Defaults to 9001.
+    # The port to listen for udp or tcp syslog traffic. Defaults to 9001.
     #var.syslog_port: 9001
 
+    # With tcp input, set the optional tls configuration:
+    #var.ssl:
+    #  enabled: true
+    #  certificate: /path/to/cert.pem
+    #  key: /path/to/privatekey.pem
+    #  key_passphrase: 'password for my key'
+
     # Set the log level from 1 (alerts only) to 7 (include all messages).
     # Messages with a log level higher than the specified will be dropped.
     # See https://www.cisco.com/c/en/us/td/docs/security/asa/syslog/b_syslog/syslogs-sev-level.html
@@ -31,16 +38,23 @@
   ftd:
     enabled: false
 
-    # Set which input to use between syslog (default) or file.
-    #var.input: syslog
+    # Set which input to use between udp (default), tcp or file.
+    #var.input: udp
 
-    # The interface to listen to UDP based syslog traffic. Defaults to
+    # The interface to listen to tcp or udp syslog traffic. Defaults to
     # localhost. Set to 0.0.0.0 to bind to all available interfaces.
     #var.syslog_host: localhost
 
-    # The UDP port to listen for syslog traffic. Defaults to 9003.
+    # The UDP port to listen for tcp or udp syslog traffic. Defaults to 9003.
     #var.syslog_port: 9003
 
+    # With tcp input, set the optional tls configuration:
+    #var.ssl:
+    #  enabled: true
+    #  certificate: /path/to/cert.pem
+    #  key: /path/to/privatekey.pem
+    #  key_passphrase: 'password for my key'
+
     # Set the log level from 1 (alerts only) to 7 (include all messages).
     # Messages with a log level higher than the specified will be dropped.
     # See https://www.cisco.com/c/en/us/td/docs/security/firepower/Syslogs/b_fptd_syslog_guide/syslogs-sev-level.html
@@ -60,13 +74,16 @@
     # Set which input to use between syslog (default) or file.
     #var.input: syslog
 
-    # The interface to listen to UDP based syslog traffic. Defaults to
+    # The interface to listen to syslog traffic. Defaults to
     # localhost. Set to 0.0.0.0 to bind to all available interfaces.
     #var.syslog_host: localhost
 
-    # The UDP port to listen for syslog traffic. Defaults to 9002.
+    # The port to listen on for syslog traffic. Defaults to 9002.
     #var.syslog_port: 9002
 
+    # Set which protocol to use between udp (default) or tcp.
+    #var.syslog_protocol: udp
+
     # Set custom paths for the log files when using file input. If left empty,
     # Filebeat will choose the paths depending on your OS.
     #var.paths: