| 1 | .\" $Id: sessions.5,v 1.1 1997-10-21 01:54:23 ghudson Exp $ |
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| 2 | .\" |
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| 3 | .\" Copyright 1997 by the Massachusetts Institute of Technology. |
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| 4 | .\" |
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| 5 | .\" Permission to use, copy, modify, and distribute this |
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| 6 | .\" software and its documentation for any purpose and without |
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| 7 | .\" fee is hereby granted, provided that the above copyright |
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| 8 | .\" notice appear in all copies and that both that copyright |
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| 9 | .\" notice and this permission notice appear in supporting |
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| 10 | .\" documentation, and that the name of M.I.T. not be used in |
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| 11 | .\" advertising or publicity pertaining to distribution of the |
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| 12 | .\" software without specific, written prior permission. |
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| 13 | .\" M.I.T. makes no representations about the suitability of |
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| 14 | .\" this software for any purpose. It is provided "as is" |
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| 15 | .\" without express or implied warranty. |
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| 16 | .\" |
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| 17 | .TH SESSIONS 5 "18 September 1997" |
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| 18 | .SH NAME |
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| 19 | /var/athena/sessions \- Directory containing Athena login session |
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| 20 | records |
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| 21 | .SH DESCRIPTION |
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| 22 | The directory |
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| 23 | .I /var/athena/sessions |
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| 24 | contains session records giving information about each user's active |
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| 25 | login sessions and recording the changes made during account setup. |
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| 26 | Each file in the directory is a username, and contains the following |
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| 27 | information if it is not empty: |
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| 28 | .TP 3 |
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| 29 | * |
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| 30 | A line containing either "0" or "1", specifying whether a passwd entry |
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| 31 | was added for the user. |
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| 32 | .TP 3 |
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| 33 | * |
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| 34 | A line containing either "0" or "1", specifying whether the user's |
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| 35 | home directory was successfully attached. |
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| 36 | .TP 3 |
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| 37 | * |
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| 38 | A line containing either "0" by itself or "1" followed by a string, |
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| 39 | specifying whether the user's existing passwd entry was modified to |
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| 40 | point to a temporary home directory. This line must be "0" if the |
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| 41 | first line is "1". |
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| 42 | .TP 3 |
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| 43 | * |
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| 44 | A list of gid values, each followed by a colon, specifying the groups |
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| 45 | the user was added to during account creation. |
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| 46 | .TP 3 |
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| 47 | * |
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| 48 | A list of pid values, each followed by a colon, giving the user's |
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| 49 | active login sessions. There must be at least one pid. |
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| 50 | .PP |
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| 51 | If a session record is empty, it indicates that the user has no active |
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| 52 | login sessions and has no account set up. For locking reasons, |
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| 53 | session records are never deleted under normal system operation; the |
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| 54 | session database may be cleared at boot time and empty records may be |
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| 55 | deleted at times when users are known not to be logging in or out (see |
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| 56 | reactivate(8)). Before reading or writing a session record, a process |
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| 57 | must obtain an exclusive lock on the record using |
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| 58 | .IR fcntl . |
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| 59 | .SH SEE ALSO |
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| 60 | al_acct_create(3), al_acct_revert(3) |
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| 61 | .SH AUTHOR |
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| 62 | Greg Hudson, MIT Information Systems |
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| 63 | .br |
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| 64 | Copyright 1997 by the Massachusetts Institute of Technology. |
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