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taskgated(8) [mojave man page]

taskgated(8)						    BSD System Manager's Manual 					      taskgated(8)

NAME
taskgated -- task_for_pid access control daemon SYNOPSIS
taskgated [-s] [-t timeout] [-i pid] DESCRIPTION
taskgated is a system daemon that implements a policy for the task_for_pid system service. When the kernel is asked for the task port of a process, and preliminary access control checks pass, it invokes this daemon (via launchd) to make the decision. OPTIONS
-t timeout The daemon will quit after that many seconds of inactivity. It will be relaunched by launchd as needed. A timeout of zero can be specified to make the daemon quit after servicing each request, but a small positive timeout is better for performance. -i pid Inject the service port of taskgated into the process with the given pid, rather than relying on launchd to install it system-wide. This is for testing only, and requires the launchd configuration for taskgated to be removed. AUTHORIZATION RIGHTS
system.privilege.taskport Authorization right used to check access of allowed (but not safe) callers. INFO KEYS
SecTaskAccess A value of "allowed" is required for any program that wants access to task ports. A value of "safe" bypasses authorization checks if so configured. Code must be signed by any system-trusted signing authority. FILES
/etc/authorization to configure the authorization used. /System/Library/LaunchDaemons/com.apple.taskgated startup configuration file for taskgated SEE ALSO
security(1), launchd(8) HISTORY
taskgated was first introduced in Mac OS 10.5 (Leopard). Procmod and procview support (-p) was removed in 10.11. Certain software updates of Mac OS 10.4 (Tiger) introduced the convention requiring membership in the procmod or procview groups to control task port access. Before that, any process could obtain the task port of any other process with the same user-id. Darwin June 1, 2019 Darwin

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launchd(8)						    BSD System Manager's Manual 						launchd(8)

NAME
launchd -- System wide and per-user daemon/agent manager SYNOPSIS
launchd [-d] [-D] [-s] [-S SessionType] [-- command [args ...]] DESCRIPTION
launchd manages processes, both for the system as a whole and for individual users. The primary and preferred interface to launchd is via the launchctl(1) tool which (among other options) allows the user or administrator to load and unload jobs. Where possible, it is preferable for jobs to launch on demand based on criteria specified in their respective configuration files. During boot launchd is invoked by the kernel to run as the first process on the system and to further bootstrap the rest of the system. You cannot invoke launchd directly. ENVIRONMENTAL VARIABLES
LAUNCHD_SOCKET This variable is exported when invoking a command via the launchd command line. It informs launchctl how to find the correct launchd to talk to. NOTES
In Darwin, the canonical way to launch a daemon is through launchd as opposed to more traditional mechanisms or mechanisms provided in ear- lier versions of Mac OS X. These alternate methods should be considered deprecated and not suitable for new projects. In the launchd lexicon, a "daemon" is, by definition, a system-wide service of which there is one instance for all clients. An "agent" is a service that runs on a per-user basis. Daemons should not attempt to display UI or interact directly with a user's login session. Any and all work that involves interacting with a user should be done through agents. If you wish your service to run as a certain user, in that user's environment, making it a launchd agent is the ONLY supported means of accomplishing this on Mac OS X. In other words, it is not sufficient to perform a setuid(2) to become a user in the truest sense on Mac OS X. FILES
~/Library/LaunchAgents Per-user agents provided by the user. /Library/LaunchAgents Per-user agents provided by the administrator. /Library/LaunchDaemons System-wide daemons provided by the administrator. /System/Library/LaunchAgents Per-user agents provided by Mac OS X. /System/Library/LaunchDaemons System-wide daemons provided by Mac OS X. SEE ALSO
launchctl(1), launchd.plist(5), Darwin 1 May, 2009 Darwin

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