From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Chuck Lever III <chuck.lever@oracle.com>,
Trond Myklebust <trond.myklebust@hammerspace.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.19 07/38] NFSv4: Turn off open-by-filehandle and NFS re-export for NFSv4.0
Date: Wed, 21 Sep 2022 17:45:51 +0200 [thread overview]
Message-ID: <20220921153646.531097048@linuxfoundation.org> (raw)
In-Reply-To: <20220921153646.298361220@linuxfoundation.org>
From: Trond Myklebust <trond.myklebust@hammerspace.com>
[ Upstream commit 2a9d683b48c8a87e61a4215792d44c90bcbbb536 ]
The NFSv4.0 protocol only supports open() by name. It cannot therefore
be used with open_by_handle() and friends, nor can it be re-exported by
knfsd.
Reported-by: Chuck Lever III <chuck.lever@oracle.com>
Fixes: 20fa19027286 ("nfs: add export operations")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/nfs/super.c | 27 ++++++++++++++++++---------
1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 6ab5eeb000dc..5e4bacb77bfc 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1051,22 +1051,31 @@ static void nfs_fill_super(struct super_block *sb, struct nfs_fs_context *ctx)
if (ctx->bsize)
sb->s_blocksize = nfs_block_size(ctx->bsize, &sb->s_blocksize_bits);
- if (server->nfs_client->rpc_ops->version != 2) {
- /* The VFS shouldn't apply the umask to mode bits. We will do
- * so ourselves when necessary.
+ switch (server->nfs_client->rpc_ops->version) {
+ case 2:
+ sb->s_time_gran = 1000;
+ sb->s_time_min = 0;
+ sb->s_time_max = U32_MAX;
+ break;
+ case 3:
+ /*
+ * The VFS shouldn't apply the umask to mode bits.
+ * We will do so ourselves when necessary.
*/
sb->s_flags |= SB_POSIXACL;
sb->s_time_gran = 1;
- sb->s_export_op = &nfs_export_ops;
- } else
- sb->s_time_gran = 1000;
-
- if (server->nfs_client->rpc_ops->version != 4) {
sb->s_time_min = 0;
sb->s_time_max = U32_MAX;
- } else {
+ sb->s_export_op = &nfs_export_ops;
+ break;
+ case 4:
+ sb->s_flags |= SB_POSIXACL;
+ sb->s_time_gran = 1;
sb->s_time_min = S64_MIN;
sb->s_time_max = S64_MAX;
+ if (server->caps & NFS_CAP_ATOMIC_OPEN_V1)
+ sb->s_export_op = &nfs_export_ops;
+ break;
}
sb->s_magic = NFS_SUPER_MAGIC;
--
2.35.1
next prev parent reply other threads:[~2022-09-21 15:48 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-21 15:45 [PATCH 5.19 00/38] 5.19.11-rc1 review Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 01/38] of: fdt: fix off-by-one error in unflatten_dt_nodes() Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 02/38] pinctrl: qcom: sc8180x: Fix gpio_wakeirq_map Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 03/38] pinctrl: qcom: sc8180x: Fix wrong pin numbers Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 04/38] pinctrl: rockchip: Enhance support for IRQ_TYPE_EDGE_BOTH Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 05/38] pinctrl: sunxi: Fix name for A100 R_PIO Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 06/38] SUNRPC: Fix call completion races with call_decode() Greg Kroah-Hartman
2022-09-21 15:45 ` Greg Kroah-Hartman [this message]
2022-09-21 15:45 ` [PATCH 5.19 08/38] gpio: mpc8xxx: Fix support for IRQ_TYPE_LEVEL_LOW flow_type in mpc85xx Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 09/38] NFSv4.2: Update mode bits after ALLOCATE and DEALLOCATE Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 10/38] Revert "SUNRPC: Remove unreachable error condition" Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 11/38] drm/panel-edp: Fix delays for Innolux N116BCA-EA1 Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 12/38] drm/meson: Correct OSD1 global alpha value Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 13/38] drm/meson: Fix OSD1 RGB to YCbCr coefficient Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 14/38] drm/rockchip: vop2: Fix eDP/HDMI sync polarities Greg Kroah-Hartman
2022-09-21 15:45 ` [PATCH 5.19 15/38] drm/i915/vdsc: Set VDSC PIC_HEIGHT before using for DP DSC Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 16/38] drm/i915/guc: Dont update engine busyness stats too frequently Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 17/38] drm/i915/guc: Cancel GuC engine busyness worker synchronously Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 18/38] block: blk_queue_enter() / __bio_queue_enter() must return -EAGAIN for nowait Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 19/38] parisc: ccio-dma: Add missing iounmap in error path in ccio_probe() Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 20/38] of/device: Fix up of_dma_configure_id() stub Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 21/38] io_uring/msg_ring: check file type before putting Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 22/38] cifs: revalidate mapping when doing direct writes Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 23/38] cifs: dont send down the destination address to sendmsg for a SOCK_STREAM Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 24/38] cifs: always initialize struct msghdr smb_msg completely Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 25/38] blk-lib: fix blkdev_issue_secure_erase Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 26/38] parisc: Allow CONFIG_64BIT with ARCH=parisc Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 27/38] tools/include/uapi: Fix <asm/errno.h> for parisc and xtensa Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 28/38] drm/i915/gt: Fix perf limit reasons bit positions Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 29/38] drm/i915: Set correct domains values at _i915_vma_move_to_active Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 30/38] drm/amdgpu: make sure to init common IP before gmc Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 31/38] drm/amdgpu: Dont enable LTR if not supported Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 32/38] drm/amdgpu: move nbio ih_doorbell_range() into ih code for vega Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 33/38] drm/amdgpu: move nbio sdma_doorbell_range() into sdma " Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 34/38] net: Find dst with sks xfrm policy not ctl_sk Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 35/38] dt-bindings: apple,aic: Fix required item "apple,fiq-index" in affinity description Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 36/38] cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all() Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 37/38] ALSA: hda/sigmatel: Keep power up while beep is enabled Greg Kroah-Hartman
2022-09-21 15:46 ` [PATCH 5.19 38/38] ALSA: hda/sigmatel: Fix unused variable warning for beep power change Greg Kroah-Hartman
2022-09-22 7:11 ` [PATCH 5.19 00/38] 5.19.11-rc1 review Bagas Sanjaya
2022-09-22 7:14 ` Bagas Sanjaya
2022-09-22 16:42 ` Guenter Roeck
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