Implement basic client-side support for RFC 9289 in Linux. This series applies to 6.4-rc5 and 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 v3: - Converted connect logic to use an xprt_class - Using TLS with proto={udp,rdma} is now properly prevented Changes since v2: - Rebased on v6.4-rc4 Changes since RFC: - Add an rpc_authops method to send TLS probes --- Chuck Lever (9): 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 TCP-with-TLS RPC transport class NFS: Have struct nfs_client carry a TLS policy field NFS: Add an "xprtsec=" NFS mount option fs/nfs/client.c | 8 + fs/nfs/fs_context.c | 67 +++++ fs/nfs/internal.h | 2 + fs/nfs/nfs3client.c | 9 +- fs/nfs/nfs4client.c | 40 ++- 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 | 18 ++ 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/sysfs.c | 1 + net/sunrpc/xprtsock.c | 425 +++++++++++++++++++++++++++++++- 18 files changed, 847 insertions(+), 29 deletions(-) create mode 100644 net/sunrpc/auth_tls.c -- Chuck Lever
