[src/trunk]: src/usr.sbin/puffs/mount_9p Do not send dummy Tauth, it's comple...

[uwe <uwe%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b42b3dae177f
branches:  trunk
changeset: 933691:b42b3dae177f
user:      uwe <uwe%NetBSD.org@localhost>
date:      Thu May 28 14:00:05 2020 +0000

description:
Do not send dummy Tauth, it's completely unnecessary.

The best way to not use authentication is to not use authentication.
Cf. http://man.cat-v.org/plan_9/5/attach

diffstat:

 usr.sbin/puffs/mount_9p/fs.c |  25 ++-----------------------
 1 files changed, 2 insertions(+), 23 deletions(-)

diffs (46 lines):

diff -r 86361fe5ad04 -r b42b3dae177f usr.sbin/puffs/mount_9p/fs.c
--- a/usr.sbin/puffs/mount_9p/fs.c      Thu May 28 12:41:15 2020 +0000
+++ b/usr.sbin/puffs/mount_9p/fs.c      Thu May 28 14:00:05 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fs.c,v 1.10 2019/05/17 08:48:04 ozaki-r Exp $  */
+/*     $NetBSD: fs.c,v 1.11 2020/05/28 14:00:05 uwe Exp $      */
 
 /*
  * Copyright (c) 2007  Antti Kantee.  All Rights Reserved.
@@ -27,7 +27,7 @@
 
 #include <sys/cdefs.h>
 #ifndef lint
-__RCSID("$NetBSD: fs.c,v 1.10 2019/05/17 08:48:04 ozaki-r Exp $");
+__RCSID("$NetBSD: fs.c,v 1.11 2020/05/28 14:00:05 uwe Exp $");
 #endif /* !lint */
 
 #include <assert.h>
@@ -109,27 +109,6 @@
                /* Should downgrade from 9P2000.u to 9P2000 if the server request? */
        }
 
-       /* tell the server we don't support authentication */
-       p9pbuf_recycleout(pb);
-       tagid = NEXTTAG(p9p);
-       p9pbuf_put_1(pb, P9PROTO_T_AUTH);
-       p9pbuf_put_2(pb, tagid);
-       p9pbuf_put_4(pb, P9PROTO_NOFID);
-       p9pbuf_put_str(pb, username);
-       p9pbuf_put_str(pb, "");
-       if (p9p->protover == P9PROTO_VERSION_U)
-               p9pbuf_put_4(pb, P9PROTO_NUNAME_UNSPECIFIED); /* n_uname[4] */
-       DO_IO(p9pbuf_write, pu, pb, p9p->servsock, &done, rv);
-
-       puffs_framebuf_recycle(pb);
-       DO_IO(p9pbuf_read, pu, pb, p9p->servsock, &done, rv);
-
-       /* assume all Rerror is "no auth" */
-       if (p9pbuf_get_type(pb) != P9PROTO_R_ERROR)
-               errx(1, "mount_9p supports only NO auth");
-       if ((rtagid = p9pbuf_get_tag(pb)) != tagid)
-               errx(1, "server invalid tag: %d vs. %d", tagid, rtagid);
-
        /* build attach message */
        p9pbuf_recycleout(pb);
        tagid = NEXTTAG(p9p);