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The major functional change in this revision is converting from user
selected UIDs to system selected UIDs. This is controlled by the
variable $USERSELECTUIDS in defs/defs.php3.in which is now set to
zero, so system selected UIDs is the default.

The algo for creating the uid is to take the email address, strip the
@whatever from it, squeeze out dots and dashes and underlines, and
make sure any +foo tokens are removed. Then make sure it is unique by
taking the first 5 characters and then adding a 3 digit number,
derived by checking the DB to see what exists.

Since we will want to (more often) change the UID selected, there is a
new admin only menu option on the Show User page. It calls the backend
script to do the work (sbin/changeuid).

The login page now defaults to storing and showing the email address
for login, rather then the UID. It will still accept either one though
(has for a long time).

Along the way I also reorg'ed a number of pages to use the new user,
group, and project classes and moved some common functionality into
the class defs.

Also changed the way addpubkey is called, to avoid some confusion.

This is only a first step.  Though this is a common daemon, you still start
multiple copies, and it most likely won't handle all daemons we might want
to auto restart.

Add fix for:
  *** WARNING: batch_daemon:
  ***   dblog failed: Can't bless non-reference value at
  ***   /usr/testbed/lib/libdb.pm line 299.
which was caused by trying the blass an undefined value which is
happens when Mysql->connect failed.

These are all the pubs I could find by grep'ing through the papers, and by
attending the conference/workshops.

another ack IF at least N acks are outstanding.

Add "-archive <bool>" to $ns report which controls if "loghole
archive" is called.  Creating the archive zipfiles is redundant when
using the workbench.  It only serves to wastes space (and time when
committing then to the experiment archive).

were behaving badly. Basically, handle vtpVlanEditOperation failing.

Note: I cannot reproduce the problem, so I don't know if I've fixed
it for sure. But, my change at least does not break snmpit under
normal condidtions.

Fix intermittent one-way loss test failure.  Let bind() choose the src port in rude; any constant port like 3001 may be already in use.

In addition, current run bindings default to last run's bindings.
This is partly to address Kevin's request in FS#128 (although that
request is for the instance page).

 * allow for no server program to be run
 * allow for a program to be run on all nodes (including planet-*)
 * mods for the new improved dbmonitor

Also allow setting of use_magent=2 to indicate that it should start an
iperfd to listen for traffic on plab nodes rather than the stub.

This is in support of Jon's desire to have the stub not be a traffic
receiver.

Currently if the auto-magent.sh script is started up with the environment
variable MAGENT_NORECV set, it will use the magent option and also start
up an iperfd on what would have been the peer server port.

image. This is only for experts, and those people will be clueful
enough to ask about it anyway.

  - Added "LIBAUDIT_FANCY" option to AuditStart.  When this option is
    used libaudit will send a different email than it normally sends,
    and on error call tblog_find_error() to determine the error.

  - Also add audit function AddAuditInfo which adds add additional
    information for libaudit to use in SendAuditMail when AUDIT_FANCY
    is set.

  - Modify template_swapin, template_instantiate, and template_create
    to use the new audit functionality.

  - Suppressing calling tblog_find_error and sending the error email
    when auditing in swapexp and batchexp

tblog changes:

  - Shorten the message sent to the user when the error in unknown.
    Remove all parts about lack of free nodes as it no longer really
    applies as tblog now correctly identified those errors and handles
    them separately.  The message is now just "Please look at the log
    below to see what happened."

  - Improve algo. used to determine the other error when canceled.
    Will now work by removing all errors related to the cancel request
    and the essentially rerunning tblog_find_error.  If the cause of
    the error is still canceled, repeat and try again until the cause
    is something other than canceled or no errors are left.

  - Refactor tblog_find_error, which involves creating new internal
    functions: tblog_determine_single_error, tblog_store_error,
    tblog_dump_error

  - Add section on Primary vs Secondary Errors to the inline POD
    documentation.

  - Other minor enhancements and bug fixes.

This forces all metadata values to be plain text values for now.

consistent and easy to use.

Add better explanation for the hack to get around "(in cleanup) Can't
call method "FETCH" on an undefined value..." in libdb.pm

Fix warning in spewconlog:
        (in cleanup) Can't call method "FETCH" on an undefined value at /usr/local/lib/perl5/site_perl/5.8.8/mach/Mysql.pm line 91 during global destruction.
and probably other places.