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NFS: don't negotiate when user specifies sec flavor
We were always attempting sec flavor negotiation, even if the user told us a specific sec flavor to use. If that sec flavor fails, we should return an error rather than continuing with sec flavor negotiation. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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@ -46,6 +46,7 @@
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#include <linux/nfs4.h>
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#include <linux/nfs_fs.h>
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#include <linux/nfs_page.h>
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#include <linux/nfs_mount.h>
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#include <linux/namei.h>
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#include <linux/mount.h>
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#include <linux/module.h>
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@ -2234,7 +2235,7 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
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struct nfs_fsinfo *info)
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{
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int status = nfs4_lookup_root(server, fhandle, info);
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if (status == -EPERM)
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if ((status == -EPERM) && !(server->flags & NFS_MOUNT_SECFLAVOUR))
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status = nfs4_find_root_sec(server, fhandle, info);
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if (status == 0)
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status = nfs4_server_capabilities(server, fhandle);
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@ -1004,6 +1004,7 @@ static int nfs_parse_security_flavors(char *value,
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return 0;
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}
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mnt->flags |= NFS_MOUNT_SECFLAVOUR;
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mnt->auth_flavor_len = 1;
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return 1;
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}
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