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fix encryption error checks on mount

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Signed-off-by: Steve French <steve.french@primarydata.com>
This commit is contained in:
Steve French 2015-09-22 03:16:27 -05:00
parent ceb1b0b9b4
commit 8862714840
1 changed files with 8 additions and 0 deletions
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8
fs/cifs/smb2pdu.c
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@ -922,6 +922,12 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
if (tcon && tcon->bad_network_name) if (tcon && tcon->bad_network_name)
return -ENOENT; return -ENOENT;
if ((tcon->seal) &&
((ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) == 0)) {
cifs_dbg(VFS, "encryption requested but no server support");
return -EOPNOTSUPP;
}
unc_path = kmalloc(MAX_SHARENAME_LENGTH * 2, GFP_KERNEL); unc_path = kmalloc(MAX_SHARENAME_LENGTH * 2, GFP_KERNEL);
if (unc_path == NULL) if (unc_path == NULL)
return -ENOMEM; return -ENOMEM;
@ -1001,6 +1007,8 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
((tcon->share_flags & SHI1005_FLAGS_DFS) == 0)) ((tcon->share_flags & SHI1005_FLAGS_DFS) == 0))
cifs_dbg(VFS, "DFS capability contradicts DFS flag\n"); cifs_dbg(VFS, "DFS capability contradicts DFS flag\n");
init_copy_chunk_defaults(tcon); init_copy_chunk_defaults(tcon);
if (tcon->share_flags & SHI1005_FLAGS_ENCRYPT_DATA)
cifs_dbg(VFS, "Encrypted shares not supported");
if (tcon->ses->server->ops->validate_negotiate) if (tcon->ses->server->ops->validate_negotiate)
rc = tcon->ses->server->ops->validate_negotiate(xid, tcon); rc = tcon->ses->server->ops->validate_negotiate(xid, tcon);
tcon_exit: tcon_exit: