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D35136.id105751.diff
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D35136.id105751.diff

diff --git a/usr.sbin/rpc.tlsservd/rpc.tlsservd.8.sav3 b/usr.sbin/rpc.tlsservd/rpc.tlsservd.8
--- a/usr.sbin/rpc.tlsservd/rpc.tlsservd.8.sav3
+++ b/usr.sbin/rpc.tlsservd/rpc.tlsservd.8
@@ -26,7 +26,7 @@
.\" $FreeBSD$
.\"
.\" Modified from gssd.8 for rpc.tlsservd.8 by Rick Macklem.
-.Dd January 29, 2021
+.Dd May 5, 2022
.Dt RPC.TLSSERVD 8
.Os
.Sh NAME
@@ -34,6 +34,7 @@
.Nd "Sun RPC over TLS Server Daemon"
.Sh SYNOPSIS
.Nm
+.Op Fl C Ar preferred_ciphers
.Op Fl D Ar certdir
.Op Fl d
.Op Fl h
@@ -140,6 +141,21 @@
.Pp
The options are as follows:
.Bl -tag -width indent
+.It Fl C Ar preferred_ciphers , Fl Fl ciphers= Ns Ar preferred_ciphers
+Specify what preferred ciphers are to be used.
+If this option is specified,
+.Dq SSL_CTX_set_cipher_list()
+will be called with
+.Dq preferred_ciphers
+as the argument.
+If this option is not specified, the cipher will be chosen by
+.Xr ssl 7
+and that should be adequate for most cases.
+The format for the preferred cipher list is described in
+.Xr openssl-ciphers 1 ,
+but note that many of the ciphers listed do not work for the KTLS.
+At this time AES-GCM and Chacha20-poly1305 ciphers should work
+for the KTLS.
.It Fl D Ar certdir , Fl Fl certdir= Ns Ar certdir
Use
.Dq certdir
@@ -322,8 +338,10 @@
.Ex -std
.Sh SEE ALSO
.Xr openssl 1 ,
+.Xr openssl-ciphers 1 ,
.Xr ktls 4 ,
.Xr exports 5 ,
+.Xr ssl 7 ,
.Xr mount_nfs 8 ,
.Xr nfsuserd 8 ,
.Xr rpc.tlsclntd 8 ,

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