Use a script to update DEBUG* macro invocations, which use literal
numbers for levels, to use bitmask macros instead:

grep -rl --include '*.[hc]' DEBUG . |
    while read f; do
        mv "$f"{,.orig}
        perl -e 'use strict;
                 use File::Slurp;
                 my @map=qw"
                    SSSDBG_FATAL_FAILURE
                    SSSDBG_CRIT_FAILURE
                    SSSDBG_OP_FAILURE
                    SSSDBG_MINOR_FAILURE
                    SSSDBG_CONF_SETTINGS
                    SSSDBG_FUNC_DATA
                    SSSDBG_TRACE_FUNC
                    SSSDBG_TRACE_LIBS
                    SSSDBG_TRACE_INTERNAL
                    SSSDBG_TRACE_ALL
                 ";
                 my $text=read_file(\*STDIN);
                 my $repl;
                 $text=~s/
                            ^
                            (
                                .*
                                \b
                                (DEBUG|DEBUG_PAM_DATA|DEBUG_GR_MEM)
                                \s*
                                \(\s*
                            )(
                                [0-9]
                            )(
                                \s*,
                            )
                            (
                                \s*
                            )
                            (
                                .*
                            )
                            $
                         /
                            $repl = $1.$map[$3].$4.$5.$6,
                            length($repl) <= 80
                                ? $repl
                                : $1.$map[$3].$4."\n".(" " x length($1)).$6
                         /xmge;
                 print $text;
        ' < "$f.orig" > "$f"
        rm "$f.orig"
    done

Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
Reviewed-by: Stephen Gallagher <sgallagh@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>

Use a script to update DEBUG macro invocations to use it as a variadic
macro, supplying format string and its arguments directly, instead of
wrapping them in parens.

This script was used to update the code:

grep -rwl --include '*.[hc]' DEBUG . |
    while read f; do
        mv "$f"{,.orig}
        perl -e \
            'use strict;
             use File::Slurp;
             my $text=read_file(\*STDIN);
             $text=~s#(\bDEBUG\s*\([^(]+)\((.*?)\)\s*\)\s*;#$1$2);#gs;
             print $text;' < "$f.orig" > "$f"
        rm "$f.orig"
    done

Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
Reviewed-by: Stephen Gallagher <sgallagh@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>

Currently online callbacks are only executed if the backend was offline
before. This patch add a new class of callback which are always called
if the backend gets a request to go online.

They can be used e.g. to reset timeouts until a more sophisticated method
(OpenLMI, sssctl) is available.

https://fedorahosted.org/sssd/ticket/1776

Although cb->list got updated when the callback is removed,
this change did not propagate to be_ctx->*_cb_list which
caused dlist having invalid records.

This patch adds two support functions for adding reconnection callbacks
and invoking such callbacks. The concept of reconnection is simple: stop
using current connection for for new queries to the server without
actually going offline.

In several places, we were creating a new timer and assigning it
to the tev variable, but then we were checking for NULL from the
te variable (which, incidentally, is guaranteed never to be NULL
in this situation)

https://fedorahosted.org/sssd/ticket/523