On 7 Jan 2017, at 14:23, George Neville-Neil wrote:
On 4 Jan 2017, at 13:26, Mark Johnston wrote:
On Wed, Jan 04, 2017 at 02:19:13AM +0000, George V. Neville-Neil
wrote:
Author: gnn
Date: Wed Jan 4 02:19:13 2017
New Revision: 311225
URL: https://svnweb.freebsd.org/changeset/base/311225
Log:
Fix DTrace TCP tracepoints to not use mtod() as it is both
unnecessary and
dangerous. Those wanting data from an mbuf should use DTrace
itself to get
the data.
I think you also need to update the types in in_kdtrace.c, and add a
translator for struct mbuf * to ipinfo_t.
Fair points.
Actually, following up to myself, this does not need to be done just
yet. The pkt_info stuff is currently always NULL. I'm working on a
copyoutmbuf() subroutine that will make all of this much cleaner.
Best,
George
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