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authorTheodore Tso <tytso@mit.edu>1995-05-05 16:59:09 +0000
committerTheodore Tso <tytso@mit.edu>1995-05-05 16:59:09 +0000
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Moved kadmin.protocol and kpasswd.protocol to the kadmin directory
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-
-This document references, accompanies and extends the password changing
-protocol document, "A Proposal for a Standardized Kerberos Password
-Changing Protocol" by Theodore Ts'o.
-
-Administrative Command Extensions to the Password Changing Protocol
-===================================================================
-The following commands and their accompanying definitions are an
-extension to the password changing protocol which allow remote
-administrative clients to perform functions analogous to those which
-are performed using the local database editing utility. These
-commands are encoded in the "command request" PDU described in the
-password changing protocol, and the server's responses to these
-commands are encoded in the "command reply" PDU.
-
-These commands are (optional commands are marked with an asterisk):
- ADD-PRINCIPAL
- DELETE-PRINCIPAL
- RENAME-PRINCIPAL
- MODIFY-PRINCIPAL
- OTHER-CHANGEPW
- OTHER-RANDOM-CHANGEPW
- INQUIRE-PRINCIPAL
- EXTRACT-KEY (*)
-
-In order to support these additional commands, the following additional
-status codes are also defined:
-
-Number Symbolic Name Meaning
-64 P_ALREADY_EXISTS The specified principal already exists.
-65 P_DOES_NOT_EXIST The specified principal does not exist.
-66 NOT_AUTHORIZED The access control list on the server prevents
- this operation.
-67 BAD_OPTION Either: 1) A bad option was specified; 2) A
- conflicting set of options would result from
- this operation; or 3) Existing options prevent
- this type of operation.
-68 VALUE_REQUIRED The specified option requires a value.
-69 SYSTEM_ERROR A system error occurred while processing a
- request.
-
-The add principal operation
----------------------------
-o Command String "ADD-PRINCIPAL"
-o Arguments
- <new-principal-string> - name of new principal
- <keyword-value-pair> - either "KEYWORD=value" or "KEYWORD".
- .
- .
- .
-o Returns
- SUCCESS - operation successful
- SYSTEM_ERROR - system error
- NOT_AUTHORIZED - not allowed to perform this
- P_ALREADY_EXISTS - new principal already exists
- BAD_OPTION - bad option supplied
- VALUE_REQUIRED - value required with keyword
-o Supplemental Returns
- NONE - if successful
- error message text - if failure
-o Description
- If the specified principal does not exist, the arguments parse
- correctly, and the arguments when combined with defaulted values
- do not produce a conflicting set of options then add the specified
- principal with the specified attributes. See below for the list of
- settable attributes.
-o Access Required
- Client principal must have ADD_PRINCIPAL permission.
-
-The delete principal operation
-------------------------------
-o Command String "DELETE-PRINCIPAL"
-o Argument
- <principal-string> - principal to delete
-o Returns
- SUCCESS - operation successful
- SYSTEM_ERROR - system error
- NOT_AUTHORIZED - not allowed to perform this
- P_DOES_NOT_EXIST - old principal does not exist
-o Supplemental returns
- NONE - if successful
- error message text - if failure
-o Description
- If the specified principal exists, then delete it from the database.
-o Access Required
- Client principal must have DELETE_PRINCIPAL permission.
-
-The rename principal operation
-------------------------------
-o Command String "RENAME-PRINCIPAL"
-o Arguments
- <orig-principal-string> - original name
- <new-principal-string> - new name
-o Returns
- SUCCESS - operation successful
- SYSTEM_ERROR - system error
- NOT_AUTHORIZED - not allowed to perform this
- P_DOES_NOT_EXIST - old principal does not exist
- P_ALREADY_EXISTS - new principal already exists
-o Supplemental Returns
- NONE - if successful
- error message text - if failure
-o Description
- If the original principal exists and the new principal name does not
- exist, rename the original principal to the specified name.
-o Access Required
- Client principal must have ADD_PRINCIPAL and DELETE_PRINCIPAL
- permission.
-
-The modify principal operation
-------------------------------
-o Command String "MODIFY-PRINCIPAL"
-o Arguments
- <principal-string> - name of principal
- <keyword-value-pair> - either KEYWORD=value or KEYWORD.
- .
- .
- .
-o Returns
- SUCCESS - operation successful
- SYSTEM_ERROR - system error
- NOT_AUTHORIZED - not allowed to perform this
- P_DOES_NOT_EXIST - principal doesn't exist
- BAD_OPTION - bad option supplied
- VALUE_REQUIRED - value required with keyword
-o Supplemental returns
- NONE - if successful
- error message text - if failure
-o Description
- If the specified principal exists, the arguments parse correctly, and
- the arguments when combined with existing values do not produce a
- conflicting set of options, then modify the specified principal with
- the specified attributes. See below for the list of settable
- attributes.
-o Access Required
- Client principal must have MODIFY_PRINCIPAL permission.
-
-The change password operation
------------------------------
-o Command String "OTHER-CHANGEPW"
-o Arguments
- <principal-string> - principal to change password for
- <new-password> - new password
-o Returns
- SUCCESS - operation successful
- PW_UNACCEPT - specified password is bad
- SYSTEM_ERROR - system error
- NOT_AUTHORIZED - not allowed to perform this
- P_DOES_NOT_EXIST - old principal does not exist
- BAD_OPTION - principal has a random key
-o Supplemental returns
- NONE - if successful
- error message text - if failure
-o Description
- If the specified principal exists, and does not have a random key,
- then change the password to the specified password. The original
- password is NOT required.
-o Access Required
- Client principal must have CHANGEPW permission.
-
-The change random password command
-----------------------------------
-o Command String "OTHER-RANDOM-CHANGEPW"
-o Argument
- <principal-string> - principal to change password for
-o Returns
- SUCCESS - operation successful
- SYSTEM_ERROR - system error
- NOT_AUTHORIZED - not allowed to perform this
- P_DOES_NOT_EXIST - old principal does not exist
- BAD_OPTION - principal does not have a random key
-o Supplemental Returns
- NONE - if successful
- error message text - if failure
-o Description
- If the specified principal exists, and has a random key, then
- generate a new random password. The original password is NOT
- required.
-o Access Required
- Client principal must have CHANGEPW permission.
-
-The inquire principal command
------------------------------
-o Command String "INQUIRE-PRINCIPAL"
-o Argument
- <principal-string> - name of principal or null argument
-o Returns
- SUCCESS - operation successful
- SYSTEM_ERROR - system error
- NOT_AUTHORIZED - not allowed to perform this
- P_DOES_NOT_EXIST - principal doesn't exist
-o Supplemental Returns
- If the return is SUCCESS
- <next-principal-string> - name of next principal in database
- <keyword-value-pair> - KEYWORD=value list
- .
- .
- .
- Otherwise
- error message text - if failure
-o Description
- If a principal is specified, then the database is searched for that
- particular principal and its attributes are returned as keyword-value
- pairs. If no principal is specified, then the first database entry
- is returned. The name of the next principal in the database is always
- returned to allow for scanning. See below for the list of attributes
- that can be returned.
-o Access Required
- Client principal must have INQUIRE_PRINCIPAL permission.
-
-The OPTIONAL extract service key table entry command
-----------------------------------------------------
-o Command String "EXTRACT-KEY"
-o Arguments
- <instance-string> - instance to extract for
- <name-string> - name to extract for
-o Returns
- SUCCESS - operation successful
- CMD_UNKNOWN - operation not supported by server
- SYSTEM_ERROR - system error
- NOT_AUTHORIZED - not allowed to perform this
- P_DOES_NOT_EXIST - principal does not exist
-o Supplemental Returns
- <octet-string> - if successful
- error message text - if failure
-o Description
- If the specified name/instance exists in the database, then
- extract the service key entry and return it in <octet-string>.
-o Access Required
- Client principal must have EXTRACT permission.
-
-Keywords
---------
-The following list of keywords are used for the ADD-PRINCIPAL and
-MODIFY-PRINCIPAL commands and are returned from the
-INQUIRE-PRINCIPAL command.
-
-Valid Keyword Value Type Value
-------- --------------- --------------- --------------------------------------
- (S) PASSWORD <string> New password.
- (SR) KVNO <integer> Key version number.
- (SR) MAXLIFE <integer> The maximum lifetime of tickets for
- this principal in seconds.
- (SR) MAXRENEWLIFE <integer> The maximum renewable lifetime of
- tickets for this principal in seconds.
- (SR) EXPIRATION <general-time> When the new principal expires.
- (SR) PWEXPIRATION <general-time> When the password expires for this
- principal.
- (SR) RANDOMKEY <integer> Specifies that this is to have a
- random key generated for it.
- (SR) FLAGS <integer> Specifies flag value for this
- principal's attributes field in the
- database.
- (SR) SALTTYPE <string> Comma-separated list of salt types
- supported for this principal. See
- note below.
- (R) MKVNO <integer> Master key version number.
- (R) LASTPWCHANGE <general-time> Last time of password change.
- (R) LASTSUCCESS <general-time> Last successful password entry.
- (R) LASTFAILED <general-time> Last failed password attempt.
- (R) FAILCOUNT <integer> Number of failed password attempts.
- (R) MODNAME <string> Principal name who performed last
- modification.
- (R) MODDATE <general-time> Last modification date.
-
-The valid field indicates whether an attribute is Settable (e.g. appropriate
-for use with ADD-PRINCIPAL, et. al.; Returnable (e.g. returned by
-INQUIRE-PRINCIPAL); or both Settable and Returnable.
-
-Note: The value for SALTTYPE is a comma-separated list of strings. The
-individual values for these may be either "KRB5" or "KRB4" or a site-specific
-value.
-