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Commit5b304bc5bf("[PATCH] knfsd: svcrpc: gss: fix failure on SVC_DENIED in integrity case") added a check to prevent wrapping an RPC response if reply_stat == MSG_DENIED, assuming that the only way to get to svcauth_gss_release() with that reply_stat value was if the reject_stat was AUTH_ERROR (reject_stat == MISMATCH is handled earlier in svc_process_common()). The code there is somewhat confusing. For one thing, rpc_success is an accept_stat value, not a reply_stat value. The correct reply_stat value to look for is RPC_MSG_DENIED. It happens to be the same value as rpc_success, so it all works out, but it's not terribly readable. Since commit438623a06b("SUNRPC: Add svc_rqst::rq_auth_stat"), the actual auth_stat value is stored in the svc_rqst, so that value is now available to svcauth_gss_prepare_to_wrap() to make its decision to wrap, based on direct information about the authentication status of the RPC caller. No behavior change is intended, this simply replaces some old code with something that should be more self-documenting. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.