Remove krb5-send-pr

Remove the GNATS-based krb5-send-pr script and replace it with a
script that instructs users to send email.

ticket: 7840 (new)
Reinitialize ulog when wrapping serial number

When we wrap the serial number, reinitialize the ulog so that kdb_num
starts counting from 1, instead of leaving the ulog in a weird state
where kdb_num == ulogentries but kdb_last_sno == 1 and the serial
numbers in the circular array aren't necessarily contiguous.

ticket: 7839 (new)
target_version: 1.12.2
tags: pullup
Add test case for ulog serial number wrapping

Add a unit test program named t_ulog.  Make it map a ulog file, set up
header state where kdb_last_sno is the last serial number, and then
add an empty update.  Check that the result is a ulog header with one
update at serial number 1.

ticket: 7839
Check for unstable ulog in ulog_get_entries

If a process terminates in the middle of a logged database update, it
will release its lock and leave the ulog in the KDB_UNSTABLE state.
kadmind should notice this when it calls ulog_get_entries, but right
now it only checks for the KDB_CORRUPT state (which is never set any
more) and does not recover.  Check for any state other than KDB_STABLE
and recover by resetting the ulog and forcing full resyncs to slaves.

ticket: 7853 (new)
target_version: 1.12.2
tags: pullup
Remove kdb5_util load iprop safety net

Revert the safety net added #7370.  As written it only applied to the
master KDC, where a normal load sometimes makes sense.  Even on a
slave, there are edge cases where it can make sense to do a normal
load.

ticket: 7850 (new)
Fix kpropd -x

A missing break in the switch statement caused kpropd -x to error out
with a usage message.

ticket: 7854 (new)
target_version: 1.12.2
tags: pullup
Modernize iprop code

* Don't use "extern" for kdb_log.h prototypes.
* Avoid passing structures by value.
* Avoid the need to cast the result of the INDEX macro, and use char *
  instead of unsigned long for pointer arithmetic.
* Reorganize kdb_log.c so static helpers are at the top and don't use
  the "ulog_" prefix.
* Get rid of ulog_finish_update_slave since it's more concise to
  open-code it in ulog_replay.
* Get rid of ulog_delete_update and set kdb_deleted in the caller.
* Modernize coding style of kproplog.c.  Use k5memdup0 instead of
  snprintf in print_str to convert a byte range to a C string.
  Remove an unnecesary textdomain call; libkrb5 takes care of calling
  bindtextdomain in the library initializer.
* Modernize coding style of kpropd.c and kprop.c.

No functional changes.
Clean up ovsec_kadmd.c

Fix code formatting issues.  Use static scope when possible, and put
all helper functions before main() so forward declarations aren't
needed.  Use GSS_KRB5_NT_PRINCIPAL_NAME instead of constructing it
with gss_str_to_oid, and get rid of display_status as that was the
only use.  Replace large verbose function comments with concise ones.
Factor out main loop setup and KDB keytab setup into helper functions.
Create a helper fail_to_start() for logging and exiting on
initialization failures, and use it instead of the large code blocks
(simply not bothering to clean up allocated memory).

Some initialization error messages have changed; no other functional
changes.
In kdb5_util load, init ulog closer to promote

Always map the ulog with FKCOMMAND, not FKLOAD which reinitializes the
ulog.  Don't reinitialize the ulog until just before calling
krb5_db_promote().  Get rid of FKLOAD since it isn't needed any more;
we can just call ulog_init_header() manually.
Don't get KDB lock in ulog_get_entries

ulog_get_entries does not access the KDB, only the ulog, so it does
not need a KDB lock; its read lock on the ulog is sufficient to
prevent logged updates from happening while it is running.  There is
no reason to serialize against unlogged KDB updates such as those
performed by the KDC, as those do not affect the ulog.