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Copyright (c) 2017 Peter Tribble
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auditconfig option...
auditconfig provides a command line interface to get and set kernel audit parameters.
The setting of the perzone policy determines the scope of the audit setting controlled by auditconfig. If perzone is set, then the values reflect the local zone except as noted. Otherwise, the settings are for the entire system. Any restriction based on the perzone setting is noted for each option to which it applies.
A non-global zone administrator can set all audit policy options except perzone and ahlt. perzone and ahlt apply only to the global zone; setting these policies requires the privileges of a global zone administrator. perzone and ahlt are described under the -setpolicy option, below.
Set the non-attributable audit mask to the value set using the -setnaflags option. For example:
# auditconfig -aconf Configured non-attributable event mask.
This command constructs an audit record for audit event event using the process's audit characteristics containing a text token string. The return token is constructed from the sorf (success/failure flag) and the retval (return value). The event is type char*, the sorf is 0/1 for success/failure, retval is an errno value, string is type *char. This command is useful for constructing an audit record with a shell script. An example of this option:
# auditconfig -audit AUE_ftpd 0 0 "test string" # audit record from audit trail: header,76,2,ftp access,,Fri Dec 08 08:44:02 2000, + 669 msec subject,abc,root,other,root,other,104449,102336,235 197121 elbow text,test string return,success,0
Checks that the current non-attributable event flags set in the kernel matches the configuration. If the runtime class mask of a kernel audit event does not match the configured class mask, a mismatch is reported.
Check the configuration of kernel audit event to class mappings. If the runtime class mask of a kernel audit event does not match the configured class mask, a mismatch is reported.
Configure kernel audit event to class mappings. Runtime class mappings are changed to match those in the audit event to class database file.
Prints the audit session ID of the current process. For example:
# auditconfig -getasid audit session id = 102336
Returns the audit characteristics of the current process.
# auditconfig -getaudit audit id = abc(666) process preselection mask = lo(0x1000,0x1000) terminal id (maj,min,host) = 235,197121,elbow(172.146.89.77) audit session id = 102336
Prints the audit ID of the current process. For example:
# auditconfig -getauid audit id = abc(666)
Prints current active root location (anchored from root [or local zone root] at system boot). For example:
# auditconfig -getcar current active root = /
Display the preselection mask associated with the specified kernel audit event. event is the kernel event number or event name.
Display the kernel audit condition. The condition displayed is the literal string auditing meaning auditing is enabled and turned on (the kernel audit module is constructing and queuing audit records); noaudit, meaning auditing is enabled but turned off (the kernel audit module is not constructing and queuing audit records); or nospace, meaning there is no space for saving audit records. See auditon(2) and auditd(8) for further information.
Prints current working directory (anchored from zone root at system boot). For example:
# cd /usr/tmp # auditconfig -getcwd current working directory = /var/tmp
For the specified event (string or event number), print out classes event has been assigned. For example:
# auditconfig -getestate 20 audit class mask for event AUE_REBOOT(20) = 0x800 # auditconfig -getestate AUE_RENAME audit class mask for event AUE_RENAME(42) = 0x30
Display the current active and configured user default audit flags. For example:
# auditconfig -getflags active user default audit flags = no(0x0,0x0) configured user default audit flags = ex,lo(0x40001000,0x40001000)
Get audit characteristics of the current zone. For example:
# auditconfig -getkaudit audit id = unknown(-2) process preselection mask = lo,na(0x1400,0x1400) terminal id (maj,min,host) = 0,0,(0.0.0.0) audit session id = 0If the audit policy perzone is not set, the terminal id is that of the global zone. Otherwise, it is the terminal id of the local zone.
Get non-attributable pre-selection mask for the current zone. For example:
# auditconfig -getkmask audit flags for non-attributable events = lo,na(0x1400,0x1400)If the audit policy perzone is not set, the kernel mask is that of the global zone. Otherwise, it is that of the local zone.
Display the current active and configured non-attributable audit flags. For example:
# auditconfig -getnaflags active non-attributable audit flags = no(0x0,0x0) configured non-attributable audit flags = lo(0x1000,0x1000)
Display the audit ID, preselection mask, terminal ID, and audit session ID for the specified process.
Display the currently installed plugins and their attributes. If plugin is specified, -getplugin only shows information for that plugin. For example:
# auditconfig -getplugin Plugin: audit_binfile (active) Attributes: p_dir=/var/audit;p_fsize=0;p_minfree=0; Plugin: audit_syslog (inactive) Attributes: p_flags=; Plugin: audit_remote (inactive) Attributes: p_hosts=;p_retries=3;p_timeout=5;
Display the kernel audit policy. The ahlt and perzone policies reflect the settings from the global zone. If perzone is set, all other policies reflect the local zone's settings. If perzone is not set, the policies are machine-wide.
Get audit queue write buffer size. For example:
# auditconfig -getqbufsz audit queue buffer size (bytes) = 1024
Get audit queue write buffer size, audit queue hiwater mark, audit queue lowater mark, audit queue prod interval (ticks).
# auditconfig -getqctrl audit queue hiwater mark (records) = 100 audit queue lowater mark (records) = 10 audit queue buffer size (bytes) = 1024 audit queue delay (ticks) = 20
Get interval at which audit queue is prodded to start output. For example:
# auditconfig -getqdelay audit queue delay (ticks) = 20
Get high water point in undelivered audit records when audit generation will block. For example:
# auditconfig -getqhiwater audit queue hiwater mark (records) = 100
Get low water point in undelivered audit records where blocked processes will resume. For example:
# auditconfig -getqlowater audit queue lowater mark (records) = 10
Print current audit statistics information. For example:
# auditconfig -getstat gen nona kern aud ctl enq wrtn wblk rblk drop tot mem 910 1 725 184 0 910 910 0 231 0 88 48See auditstat(8) for a description of the headings in -getstat output.
Print audit terminal ID for current process. For example:
# auditconfig -gettid terminal id (maj,min,host) = 235,197121,elbow(172.146.89.77)
Display the currently configured (runtime) kernel and user level audit event information.
Display the kernel audit policies with a description of each policy.
Execute shell or cmd with specified session-ID. For example:
# auditconfig -setasid 2000 /bin/ksh # # auditconfig -getpinfo 104485 audit id = abc(666) process preselection mask = lo(0x1000,0x1000) terminal id (maj,min,host) = 235,197121,elbow(172.146.89.77) audit session id = 2000
Execute shell or cmd with the specified audit characteristics.
Execute shell or cmd with the specified audit-ID.
Map the kernel event event to the classes specified by audit_flags. event is an event number or name. An audit_flag is a two character string representing an audit class. If perzone is not set, this option is valid only in the global zone.
Sets the user default audit flags. For example, to set execute and login auditing for all users:
# auditconfig -setflags ex,lo user default audit flags = ex,lo(0x40001000,0x40001000)
Set IP address of machine to specified values. IP-address_type is ipv6 or ipv4. If perzone is not set, this option is valid only in the global zone.
Set non-attributes selection flags of machine. If perzone is not set, this option is valid only in the global zone.
Sets the non-attributable audit flags. For example:
# auditconfig -setnaflags lo non-attributable audit flags = lo(0x1000,0x1000)
Configures a plugin's attributes. For example:
# auditconfig -setplugin audit_syslog active
Set the preselection mask of the specified process. If perzone is not set, this option is valid only in the global zone.
Set the kernel audit policy. A policy policy_flag is literal strings that denotes an audit policy. A prefix of + adds the policies specified to the current audit policies. A prefix of - removes the policies specified from the current audit policies. No policies can be set from a local zone unless the perzone policy is first set from the global zone. The following are the valid policy flag strings (auditconfig -lspolicy also lists the current valid audit policy flag strings): all
Include all policies that apply to the current zone.
Panic is called and the system dumps core if an asynchronous audit event occurs that cannot be delivered because the audit queue has reached the high-water mark or because there are insufficient resources to construct an audit record. By default, records are dropped and a count is kept of the number of dropped records.
Include the execv(2) system call environment arguments to the audit record. This information is not included by default.
Include the execv(2) system call parameter arguments to the audit record. This information is not included by default.
Do not suspend processes when audit resources are exhausted. Instead, drop audit records and keep a count of the number of records dropped. By default, process are suspended until audit resources become available.
Include the supplementary group token in audit records. By default, the group token is not included.
Include no policies. If used in other than the global zone, the ahlt and perzone policies are not changed.
Add secondary path tokens to audit record. These are typically the pathnames of dynamically linked shared libraries or command interpreters for shell scripts. By default, they are not included.
Maintain separate configuration, queues, and logs for each zone and execute a separate version of auditd(8) for each zone.
Audit public files. By default, read-type operations are not audited for certain files which meet public characteristics: owned by root, readable by all, and not writable by all.
Include the trailer token in every audit record. By default, the trailer token is not included.
Include the sequence token as part of every audit record. By default, the sequence token is not included. The sequence token attaches a sequence number to every audit record.
Include in an audit record any downgraded data moved between windows. This policy is available only if the system is configured with Trusted Extensions. By default, this information is not included.
Include in an audit record any upgraded data moved between windows. This policy is available only if the system is configured with Trusted Extensions. By default, this information is not included.
Include the zonename token as part of every audit record. By default, the zonename token is not included. The zonename token gives the name of the zone from which the audit record was generated.
Set the audit queue write buffer size (bytes).
Set the audit queue write buffer size (bytes), hiwater audit record count, lowater audit record count, and wakeup interval (ticks). Valid within a local zone only if perzone is set.
Set the audit queue wakeup interval (ticks). This determines the interval at which the kernel pokes the audit queue, to write audit records to the audit trail. Valid within a local zone only if perzone is set.
Set the number of undelivered audit records in the audit queue at which audit record generation blocks. Valid within a local zone only if perzone is set.
Set the number of undelivered audit records in the audit queue at which blocked auditing processes unblock. Valid within a local zone only if perzone is set.
Set the preselection mask of all processes with the specified audit session ID. Valid within a local zone only if perzone is set.
Reset audit statistics counters. Valid within a local zone only if perzone is set.
Set the preselection mask of all processes with the specified audit ID. Valid within a local zone only if perzone is set.
Example 1 Using auditconfig
The following is an example of an auditconfig program:
# # map kernel audit event number 10 to the "fr" audit class # % auditconfig -setclass 10 fr # # turn on inclusion of exec arguments in exec audit records # % auditconfig -setpolicy +argv
Successful completion.
An error occurred.
Stores event definitions used in the audit system.
Stores class definitions used in the audit system.
See attributes(7) for descriptions of the following attributes:
| ATTRIBUTE TYPE ATTRIBUTE VALUE |
| Interface Stability Committed |
auditon (2), execv (2), audit_class (5), audit_event (5), attributes (7), audit_binfile (7), audit_remote (7), audit_syslog (7), audit (8), auditd (8), auditstat (8), praudit (8)
If the audit_remote or audit_syslog plugins are active, the behavior of the system with respect to the -setpolicy +cnt and the -setqhiwater options is modified slightly. If -setpolicy +cnt is set, data will continue to be sent to the selected plugin, even though output to the binary audit log is stopped, pending the freeing of disk space. If -setpolicy -cnt is used, the blocking behavior is as described under OPTIONS, above. The value set for the queue high water mark is used within auditd as the default value for its queue limits unless overridden by means of the qsize attribute.
The auditconfig options that modify or display process-based information are not affected by the perzone policy. Those that modify system audit data such as the terminal id and audit queue parameters are valid only in the global zone, unless the perzone policy is set. The display of a system audit reflects the local zone if perzone is set. Otherwise, it reflects the settings of the global zone.
The -setcond option has been removed. Use audit(8) to enable or disable auditing.
The -getfsize and -setfsize options have been removed. Use audit_binfile(7) p_fsize to set the audit file size.