On 15.12.2009 05:04, Tony Meyer wrote:
> [pid 20730] write(2, "2f"..., 22f) = 2
> [pid 20730] write(2, "5f"..., 25f) = 2
> [pid 20730] write(2, "ea"..., 2ea) = 2
> [pid 20730] write(2, "\n"..., 1
> ) = 1
At this point the lib should also log the b= tag value, but it does not.
So the signing operation fails. An additional problem is that there's no
sane log output when this occurs AND dkim_strict is set. I have
corrected this in CVS (patch attached).
Bottom line: Try the patch (or pull fresh tree from git), then check
which signing error code gets logged. I guess there's a problem with
your RSA key.
/tom
? Local
? build-Linux-i386
? src/receive.c.org
Index: src/dkim.c
===================================================================
RCS file: /home/cvs/exim/exim-src/src/dkim.c,v
retrieving revision 1.10
diff -u -r1.10 dkim.c
--- src/dkim.c 16 Nov 2009 19:50:36 -0000 1.10
+++ src/dkim.c 15 Dec 2009 08:22:00 -0000
@@ -391,6 +391,7 @@
uschar *rc = NULL;
pdkim_signature *signature;
int pdkim_canon;
+ int pdkim_rc;
int sread;
char buf[4096];
int save_errno = 0;
@@ -511,8 +512,11 @@
goto CLEANUP;
}
- if (pdkim_feed_finish(ctx,&signature) != PDKIM_OK)
- goto CLEANUP;
+ pdkim_rc = pdkim_feed_finish(ctx,&signature);
+ if (pdkim_rc != PDKIM_OK) {
+ log_write(0, LOG_MAIN|LOG_PANIC, "DKIM: signing failed (RC %d)", pdkim_rc);
+ goto CLEANUP;
+ }
rc = store_get(strlen(signature->signature_header)+3);
Ustrcpy(rc,US signature->signature_header);
Index: src/transport.c
===================================================================
RCS file: /home/cvs/exim/exim-src/src/transport.c,v
retrieving revision 1.25
diff -u -r1.25 transport.c
--- src/transport.c 16 Nov 2009 19:50:37 -0000 1.25
+++ src/transport.c 15 Dec 2009 08:22:00 -0000
@@ -1034,7 +1034,9 @@
if (dkim_strict_result != NULL) {
if ( (strcmpic(dkim_strict,US"1") == 0) ||
(strcmpic(dkim_strict,US"true") == 0) ) {
- save_errno = errno;
+ /* Set errno to something halfway meaningful */
+ save_errno = EACCES;
+ log_write(0, LOG_MAIN, "DKIM: message could not be signed, and dkim_strict is set. Deferring message delivery.");
rc = FALSE;
goto CLEANUP;
}
