Kern Sibbald wrote:
> Hello Dan,
>
> This is to warn you that Bacula will probably not be able to be compiled and
> run with encryption on Release 7 of FreeBSD. This is because the version of
> pthreads in that release has pthread_t defined as a structure, which is
> incompatible with OpenSSL.
Initial conversations indicate that pthread_t is a point to a structure.
From /usr/include/sys/_pthreadtypes.h
typedef struct pthread *pthread_t;
See http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/sys/_pthreadtypes.h
Does this help?
> The OpenSSL API mandates doing comparison of
> thread ids without the use of pthread_equal(). In otherwords, Bacula must be
> able to return a thread id to OpenSSL when requested. It currently does so
> with:
>
> return ((unsigned long)pthread_self());
>
> which is far from being elegant, but does currently work on all platforms
> including FreeBSD < 7 (with the possible exception of Win32).
I am told:
- "pthread_t is the type of thread IDs"
- "libthr's pthread_equal simply compares the two pointers"
- "hmm, I haven't seen any issue with FreeBSD 7.2 and Bacula 3.0.0..."
- "if you wanted to do it fully pthread compliant, I think you could
use pthread_setspecific() to create your own thread IDs but that's
rather ugly. newer versions of openssl handle this better (where
"newer versions" is 0.9.9)"
> This will not work with the new FreeBSD implementation of pthreads. Perhaps
> the FreeBSD pthreads developers have a FreeBSD specific solution for this
> problem. If so, could you please let me know. If not, Bacula encryption will
> unfortunately not be available on the new version of FreeBSD.
A FreeBSD project
The FreeBSD port applies these thread related patches to the Bacula source:
d...@polo:/usr/ports/sysutils/bacula-server/files] $ cat patch-src_lib_jcr.c
--- src/lib/jcr.c.orig 2009-04-12 11:07:07.079940037 -0400
+++ src/lib/jcr.c 2009-04-12 11:07:20.116947254 -0400
@@ -1063,8 +1063,8 @@
fprintf(fp, "\tuse_count=%i\n",
jcr->use_count());
#else
- fprintf(fp, "\tuse_count=%i threadid=0x%x\n",
- jcr->use_count(), (int)jcr->my_thread_id);
+ fprintf(fp, "\tuse_count=%i threadid=0x%lx\n",
+ jcr->use_count(), (long)jcr->my_thread_id);
#endif
fprintf(fp, "\tJobType=%c JobLevel=%c\n",
jcr->get_JobType(), jcr->get_JobLevel());
[...@polo:/usr/ports/sysutils/bacula-server/files] $
--- src/cats/sql.c.orig 2009-04-12 11:07:46.218959381 -0400
+++ src/cats/sql.c 2009-04-12 11:08:15.509974021 -0400
@@ -759,7 +759,7 @@
if (mdb->lock.valid == RWLOCK_VALID) {
fprintf(fp, "\tRWLOCK=%p w_active=%i w_wait=%i\n", &mdb->lock,
mdb->lock.w_active, mdb->lock.w_wait);
#ifndef HAVE_WIN32
- fprintf(fp, "\t\tthreadid=0x%x mutex=%p\n",
(int)mdb->lock.writer_id, &mdb->lock.mutex);
+ fprintf(fp, "\t\tthreadid=0x%lx mutex=%p\n",
(long)mdb->lock.writer_id, &mdb->lock.mutex);
#endif
}
}
> Note, as far as I know this means that any program that uses pthreads and
> OpenSSL will have the same problem.
>
> Best regards,
>
> Kern
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