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Subject: [PATCH RFC 00/12] client-side RPC-with-TLS
From:   Chuck Lever <cel@kernel.org>
To:     anna.schumaker@netapp.com, trondmy@hammerspace.com
Cc:     Jeff Layton <jlayton@kernel.org>,
        Chuck Lever <chuck.lever@oracle.com>,
        linux-nfs@vger.kernel.org, kernel-tls-handshake@lists.linux.dev
Date:   Tue, 16 May 2023 15:38:32 -0400
Message-ID: <168426587118.74246.214357450560967997.stgit@oracle-102.nfsv4bat.org>
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Now that TLS handshake support is available in the kernel, let's
have a look at what is needed to support NFS in-transit confiden-
tiality in the Linux NFS client.

These apply to v6.4-rc2 (actually, net-next to be precise), but
previously they've been tested at multiple NFS bake-a-thon events.

---

Chuck Lever (12):
      NFS: Improvements for fs_context-related tracepoints
      SUNRPC: Plumb an API for setting transport layer security
      SUNRPC: Trace the rpc_create_args
      SUNRPC: Refactor rpc_call_null_helper()
      SUNRPC: Add RPC client support for the RPC_AUTH_TLS auth flavor
      SUNRPC: Ignore data_ready callbacks during TLS handshakes
      SUNRPC: Capture CMSG metadata on client-side receive
      SUNRPC: Add a connect worker function for TLS
      SUNRPC: Add RPC-with-TLS support to xprtsock.c
      SUNRPC: Add RPC-with-TLS tracepoints
      NFS: Have struct nfs_client carry a TLS policy field
      NFS: Add an "xprtsec=" NFS mount option


 fs/nfs/client.c                 |   7 +
 fs/nfs/fs_context.c             |  55 +++++
 fs/nfs/internal.h               |   2 +
 fs/nfs/nfs3client.c             |   1 +
 fs/nfs/nfs4client.c             |  18 +-
 fs/nfs/super.c                  |  12 ++
 include/linux/nfs_fs_sb.h       |   3 +-
 include/linux/sunrpc/auth.h     |   1 +
 include/linux/sunrpc/clnt.h     |   2 +
 include/linux/sunrpc/xprt.h     |  17 ++
 include/linux/sunrpc/xprtsock.h |   3 +
 include/trace/events/sunrpc.h   |  96 ++++++++-
 net/sunrpc/Makefile             |   2 +-
 net/sunrpc/auth.c               |   2 +-
 net/sunrpc/auth_tls.c           | 120 +++++++++++
 net/sunrpc/clnt.c               |  22 +-
 net/sunrpc/xprtsock.c           | 343 +++++++++++++++++++++++++++++++-
 17 files changed, 677 insertions(+), 29 deletions(-)
 create mode 100644 net/sunrpc/auth_tls.c

--
Chuck Lever