pts_creategroup - Creates an (empty) Protection Service group entry
pts creategroup -name <group name>+ [-owner <owner of the group>] [-id <id (negated) for the group>+] [-cell <cell name>] [-noauth] [-localauth] [-force] [-help] [-auth] [-encrypt [<yes|no>]] [-config <configuration file>]
The pts creategroup command (alias pts cg creates a Protection Service entry for each group specified by the -name argument. The entry records the issuer of the command as the group's creator, and as the group's owner unless the -owner argument names an alternate user or group as the owner.
There are two types of groups:
regular, the names of which have two parts separated by a colon. The part before the colon names the group's owner. Any user can create such groups.
prefix-less,
which do not have an owner prefix.
Only members of the system:administrators group can create prefix-less groups.
Creating a group lowers the issuer's group-creation quota by one. This is true even if the -owner argument is used to assign ownership to an alternate user or group. To display a user's group-creation quota, use the pts_examine(1) command; to set it, use the pts_setfields(1) command.
Auristor Group Numbers (AGNs) are negative integers and by default the Protection Service assigns an AGN that is one less (more negative) than the current value of the max group id counter,
decrementing the counter by one for each group.
Members of the system:administrators group can use the -id argument to assign specific AGNs.
If any of the specified AGNs is lower (more negative) than the current value of the max group id counter,
the counter is reset to that value.
It is acceptable to specify an AGN greater (less negative) than the current value of the counter,
but the creation operation fails if an existing group is already assigned that value.
To display the value of the max group id counter,
use the pts_listmax(1) command.
To set the value of the max group id counter,
use the pts_setmax(1) command.
The Protection Server reserves the following AGN values:
GID -101 is reserved for system:anyuser
GID -102 is reserved for system:authuser
GID -203 is reserved for system:viewer
GID -204 is reserved for system:administrators
GID -205 is reserved for system:backup
The value 0 (zero) is not valid as either a AUN or a AGN.
The command generates the following string to confirm creation of each group:
group <name> has id <AGN>
While designating a machine as a group's owner does not cause an error, it is not recommended. The Protection Server does not extend the usual privileges of group ownership to users logged onto the machine.
Specifies the name of each group to create. Provide a string of up to 63 characters, which can include lowercase (but not uppercase) letters, numbers, and punctuation marks. A regular name includes a single colon (:) to separate the two parts of the name; the colon cannot appear in a prefix-less group name.
A regular group's name must have the following format:
I<owner_name>:I<group_name>
and the <owner_name> field must reflect the actual owner of the group, as follows:
If the optional -owner argument is not included, the field must match the username under which the issuer is currently authenticated.
If the -owner argument names an alternate Auristor username, the owner_name field must match that username.
If the -owner argument names another regular group, the <owner_name> field must match the owning group's <owner_name> field (the part of its name before the colon). If the -owner argument names a prefix-less group, the field must match the owning group's complete name.
Specifies a user or group as the owner for each group, rather than the issuer of the command. Provide either a username or the name of a regular or prefix-less group. An owning group must already have at least one member. This requirement prevents assignment of self-ownership to a group during its creation; use the pts_chown(1) command after issuing this command, if desired.
Specifies an AGN number (a negative integer) for each group, rather than allowing the Protection Service to assign it. Precede the integer with a hyphen (-) to indicate that it is negative.
If this argument is used and the -name argument names multiple new groups, it is best to provide an equivalent number of AGNs. The first AGN is assigned to the first group, the second to the second group, and so on. If there are fewer AGNs than groups, the Protection Service assigns AGNs to the unmatched groups based on the max group id counter. If there are more AGNs than groups, the excess AGNs are ignored. If any of the AGNs are lower (more negative) than the current value of the max group id counter, the counter is reset to that value.
Use the calling user's tokens to communicate with the Protection Server. For more details, see pts(1).
Names the cell in which to run the command. For more details, see pts(1).
Sets the location of the configuration file to be used. The default file is /etc/yfs/yfs-client.conf. For more details, see pts(1).
Enables or disables encryption for any communication with the Protection Server. For more details, see pts(1).
Enables the command to continue executing as far as possible when errors or other problems occur, rather than halting execution at the first error.
Prints the online help for this command. All other valid options are ignored.
Constructs a server ticket using a key from the local /etc/yfs/server/KeyFileExt file. Do not combine this flag with the -cell or -noauth options. For more details, see pts(1).
Assigns the unprivileged identity anonymous to the issuer. For more details, see pts(1).
In the following example, the user pat creates groups called pat:friends and pat:colleagues.
% pts creategroup -name pat:friends pat:colleagues
The following example shows a member of the system:administrators group creating the prefix-less group staff and assigning its ownership to the system:administrators group rather than to herself.
% pts creategroup -name staff -owner system:administrators
In the following example, the user pat creates a group called smith:team-members, which is allowed because the -owner argument specifies the required value (smith).
% pts creategroup -name smith:team-members -owner smith
The issuer must belong to the system:administrators group to create prefix-less groups or include the -id argument.
To create a regular group, the issuer must
Be authenticated. The command fails if the -noauth flag is provided.
Have remaining group quota. Use the pts_examine(1) to display the remaining group quota.
pts(1), pts_examine(1), pts_listmax(1), pts_setaccess(1), pts_setfields(1), pts_setmax(1)
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