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SUNRPC: Add a TCP-with-TLS RPC transport class

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Use the new TLS handshake API to enable the SunRPC client code
to request a TLS handshake. This implements support for RFC 9289,
only on TCP sockets.

Upper layers such as NFS use RPC-with-TLS to protect in-transit
traffic.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Chuck Lever
2023-06-07 09:59:15 -04:00
committed by Trond Myklebust
parent dea034b963
commit 75eb6af7ac
5 changed files with 418 additions and 0 deletions
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44
include/trace/events/sunrpc.h
View File

@@ -1525,6 +1525,50 @@ TRACE_EVENT(rpcb_unregister,
)
);
/**
** RPC-over-TLS tracepoints
**/
DECLARE_EVENT_CLASS(rpc_tls_class,
TP_PROTO(
const struct rpc_clnt *clnt,
const struct rpc_xprt *xprt
),
TP_ARGS(clnt, xprt),
TP_STRUCT__entry(
__field(unsigned long, requested_policy)
__field(u32, version)
__string(servername, xprt->servername)
__string(progname, clnt->cl_program->name)
),
TP_fast_assign(
__entry->requested_policy = clnt->cl_xprtsec.policy;
__entry->version = clnt->cl_vers;
__assign_str(servername, xprt->servername);
__assign_str(progname, clnt->cl_program->name)
),
TP_printk("server=%s %sv%u requested_policy=%s",
__get_str(servername), __get_str(progname), __entry->version,
rpc_show_xprtsec_policy(__entry->requested_policy)
)
);
#define DEFINE_RPC_TLS_EVENT(name) \
DEFINE_EVENT(rpc_tls_class, rpc_tls_##name, \
TP_PROTO( \
const struct rpc_clnt *clnt, \
const struct rpc_xprt *xprt \
), \
TP_ARGS(clnt, xprt))
DEFINE_RPC_TLS_EVENT(unavailable);
DEFINE_RPC_TLS_EVENT(not_started);
/* Record an xdr_buf containing a fully-formed RPC message */
DECLARE_EVENT_CLASS(svc_xdr_msg_class,
TP_PROTO(