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From 299307138350c2dd98aee123ed8f1f3cef9a7865 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Thu, 28 Nov 2013 12:21:49 +0100
Subject: [PATCH hurd 27/30] XXX i broke rpctrace
If we cannot get this to work with protected payloads, we can always
add a switch to libports to disable the optimization.
---
utils/rpctrace.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/utils/rpctrace.c b/utils/rpctrace.c
index c954e51..18fae83 100644
--- a/utils/rpctrace.c
+++ b/utils/rpctrace.c
@@ -1219,7 +1219,25 @@ trace_and_forward (mach_msg_header_t *inp, mach_msg_header_t *outp)
/* Look up our record for the receiving port. There is no need to check
the class, because our port bucket only ever contains one class of
ports (traced_class). */
- info = ports_lookup_port (traced_bucket, inp->msgh_local_port, 0);
+
+ if (MACH_MSGH_BITS_LOCAL (inp->msgh_bits) == MACH_MSG_TYPE_PROTECTED_PAYLOAD)
+ {
+ info = (struct traced_info *) inp->msgh_protected_payload;
+ if (info && info->pi.bucket == traced_bucket)
+ {
+ ports_port_ref (info);
+ /* Undo the protected payload optimization for our tracee. */
+ inp->msgh_bits = MACH_MSGH_BITS (
+ MACH_MSGH_BITS_REMOTE (inp->msgh_bits),
+ MACH_MSG_TYPE_PORT_SEND); /* XXX we cannot know the real type :( */
+ inp->msgh_local_port = ports_payload_get_name (info);
+ }
+ else
+ info = NULL;
+ }
+ else
+ info = ports_lookup_port (traced_bucket, inp->msgh_local_port, 0);
+
assert (info);
/* A notification message from the kernel appears to have been sent
--
2.1.3
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