On May 24, 2023, at 3:30 PM, Jeff Layton [off-list ref] wrote:

On Tue, 2023-05-23 at 10:29 -0400, Chuck Lever wrote:

quoted

Let's have a look at what is needed to support NFS in-transit
confidentiality in the Linux NFS client. These apply to net-next
but previously they've been tested at multiple NFS bake-a-thon
events.

Why net-next? Aren't the necessary non-NFS/RPC bits now in mainline at
this point? What's missing?

https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/net/handshake?id=eefca7ec514262aef08d0ef261552f2f604bd851

That fix has been in net-next for 12 days and is still not merged.

This series does not apply cleanly unless that fix has also been
applied. I did not expect it to take so long to get that fix into
upstream.

quoted

This series is also available in the topic-rpc-with-tls-upcall
branch at

 https://git.kernel.org/pub/scm/linux/kernel/git/cel/linux.git

Changes since RFC:
- Add an rpc_authops method to send TLS probes

---

Chuck Lever (11):
     NFS: Improvements for fs_context-related tracepoints
     SUNRPC: Plumb an API for setting transport layer security
     SUNRPC: Trace the rpc_create_args
     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     |   2 +
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           | 175 ++++++++++++++++
net/sunrpc/clnt.c               |   9 +-
net/sunrpc/xprtsock.c           | 343 +++++++++++++++++++++++++++++++-
17 files changed, 727 insertions(+), 22 deletions(-)
create mode 100644 net/sunrpc/auth_tls.c

--
Chuck Lever

-- 
Jeff Layton [off-list ref]

--
Chuck Lever