This section includes reference information for administration of the Service Access Facility.
The SAF uses configuration files that can be modified by using the sacadm and pmadm commands. You should not need to manually edit the configuration files.
File Name |
Description |
---|---|
/etc/saf/_sysconfig |
Per-system configuration script |
/etc/saf/_sactab |
The SAC's administrative file that contains configuration data for the port monitors that the SAC controls |
/etc/saf/pmtag |
Home directory for port monitor pmtag |
/etc/saf/pmtag/_config |
Per-port monitor configuration script for port monitor pmtag if it exists |
/etc/saf/pmtag/_pmtab |
Port monitor pmtag's administrative file that contains port monitor-specific configuration data for the services pmtag provides |
/etc/saf/pmtag/svctag |
Per-service configuration script for service svctag |
/var/saf/log |
The SAC's log file |
/var/saf/pmtag |
Directory for files created by pmtag, for example, log files |
The information in the /etc/saf/_sactab file is as follows:
# VERSION=1 zsmon:ttymon::0:/usr/lib/saf/ttymon # |
Indicates the Service Access Facility version number.
Is the name of the port monitor.
Is the type of port monitor.
Indicates whether the following two flags are set:
Do not enable the port monitor.
Do not start the port monitor. No flags are set in this example.
Indicates the return code value. A return count of 0 indicates that the port monitor is not be restarted if the port monitor fails.
Indicates the port monitor path name.
The /etc/saf/pmtab/_pmtab file, such as /etc/saf/zsmon/_pmtab, is similar to the following:
# VERSION=1 ttya:u:root:reserved:reserved:reserved:/dev/term/a:I::/usr/bin/login::9600: ldterm,ttcompat:ttya login\: ::tvi925:y:# |
Indicates the Service Access Facility version number.
Indicates the service tag.
Identifies whether the following flags are set:
Do not enable the service.
Create a utmpx entry for the service.
Indicates the identity assigned to the service tag.
This field is reserved for future use.
This field is reserved for future use.
This field is reserved for future use.
Indicates the TTY port path name.
Identifies the full path name of the service to be invoked when a connection is received.
Indicates whether the following flags are set:
Sets the connect on carrier flag for the port.
Sets the port as bidirectional, allowing both incoming and outgoing traffic.
Suppresses an automatic hand-up immediately after an incoming call is received.
Initializes the port.
Forces ttymon to wait until it receives a character from the port before ttymon prints the login:message.
Identifies the TTY label defined in the /etc/ttydefs file.
Identifies the STREAMS modules to be pushed.
Identifies the prompt to be displayed.
Indicates yes or no response.
Identifies any inactive (disabled) response message.
Identifies the terminal type.
Indicates whether the software carrier is set (y/n).
The sacadm command controls the states of services. The following list describes the possible states of services.
Default state. When the port monitor is added, the service operates.
Default state. When the port monitor is removed, the service stops.
To determine the state of any particular service, use the following:
# pmadm -l -p portmon-name -ssvctag |
The sacadm command controls the states of the ttymon and listen port monitors. The following table describes the possible port monitor states.
State |
Description |
---|---|
Started |
Default state – When the port monitor is added, it is automatically started. |
Enabled |
Default state – When the port monitor is added, it is automatically ready to accept requests for service. |
Stopped |
Default state – When the port monitor is removed, it is automatically stopped. |
Disabled |
Default state – When the port monitor is removed, it automatically continues existing services and refuses to add new services. |
Starting |
Intermediate state – The port monitor is in the process of starting. |
Stopping |
Intermediate state – The port monitor has been manually terminated, but it has not completed its shutdown procedure. The port monitor is on the way to becoming stopped. |
Notrunning |
Inactive state – The port monitor has been killed. All ports previously monitored are inaccessible. An external user cannot tell whether a port is disabled or notrunning. |
Failed |
Inactive state – The port monitor is unable to start and remain running. |
To determine the state of any particular port monitor, use the following command:
# sacadm -l -p portmon-name |
Ports can be enabled or disabled depending on the state of the port monitor that controls the ports.
State |
Description |
---|---|
Serial (ttymon) port states |
|
Enabled |
The ttymon port monitor sends a prompt message to the port and provides login service to it. |
Disabled |
Default state of all ports if ttymon is killed or disabled. If you specify this state, ttymon sends out the disabled message when it receives a connection request. |