Merge remote-tracking branch 'remotes/kvaneesh/tags/for-upstream-signed' into staging

VirtFS update:

Cleanups mostly isolating virtio related details into separate files. This
is done to enable easy addition of Xen transport for VirtFS.

The changes include:

1. Rename a bunch of files and functions to make clear they are generic.
2. disentangle virtio transport code and generic 9pfs code.
3. Some function name clean-up.

# gpg: Signature made Tue 12 Jan 2016 06:04:35 GMT using RSA key ID 04C4E23A
# gpg: Good signature from "Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 4846 9DE7 1860 360F A6E9  968C DE41 A4FE 04C4 E23A

* remotes/kvaneesh/tags/for-upstream-signed: (25 commits)
  9pfs: introduce V9fsVirtioState
  9pfs: factor out v9fs_device_{,un}realize_common
  9pfs: rename virtio-9p.c to 9p.c
  9pfs: rename virtio_9p_set_fd_limit to use v9fs_ prefix
  9pfs: move handle_9p_output and make it static function
  9pfs: export pdu_{submit,alloc,free}
  9pfs: factor out virtio_9p_push_and_notify
  9pfs: break out 9p.h from virtio-9p.h
  9pfs: break out virtio_init_iov_from_pdu
  9pfs: factor out pdu_push_and_notify
  9pfs: factor out virtio_pdu_{,un}marshal
  9pfs: make pdu_{,un}marshal proper functions
  9pfs: PDU processing functions should start pdu_ prefix
  9pfs: PDU processing functions don't need to take V9fsState as argument
  fsdev: rename virtio-9p-marshal.{c,h} to 9p-iov-marshal.{c,h}
  fsdev: break out 9p-marshal.{c,h} from virtio-9p-marshal.{c,h}
  9pfs: remove dead code
  9pfs: merge hw/virtio/virtio-9p.h into hw/9pfs/virtio-9p.h
  9pfs: rename virtio-9p-xattr{,-user}.{c,h} to 9p-xattr{,-user}.{c,h}
  9pfs: rename virtio-9p-synth.{c,h} to 9p-synth.{c,h}
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 120 insertions, 0 deletions

diff --git a/hw/9pfs/9p-xattr.h b/hw/9pfs/9p-xattr.h
new file mode 100644
index 0000000000..4d39a20262
--- /dev/null
+++ b/hw/9pfs/9p-xattr.h
@@ -0,0 +1,120 @@
+/*
+ * 9p
+ *
+ * Copyright IBM, Corp. 2010
+ *
+ * Authors:
+ *  Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+#ifndef _QEMU_9P_XATTR_H
+#define _QEMU_9P_XATTR_H
+
+#include "qemu/xattr.h"
+
+typedef struct xattr_operations
+{
+    const char *name;
+    ssize_t (*getxattr)(FsContext *ctx, const char *path,
+                        const char *name, void *value, size_t size);
+    ssize_t (*listxattr)(FsContext *ctx, const char *path,
+                         char *name, void *value, size_t size);
+    int (*setxattr)(FsContext *ctx, const char *path, const char *name,
+                    void *value, size_t size, int flags);
+    int (*removexattr)(FsContext *ctx,
+                       const char *path, const char *name);
+} XattrOperations;
+
+
+extern XattrOperations mapped_user_xattr;
+extern XattrOperations passthrough_user_xattr;
+
+extern XattrOperations mapped_pacl_xattr;
+extern XattrOperations mapped_dacl_xattr;
+extern XattrOperations passthrough_acl_xattr;
+extern XattrOperations none_acl_xattr;
+
+extern XattrOperations *mapped_xattr_ops[];
+extern XattrOperations *passthrough_xattr_ops[];
+extern XattrOperations *none_xattr_ops[];
+
+ssize_t v9fs_get_xattr(FsContext *ctx, const char *path, const char *name,
+                       void *value, size_t size);
+ssize_t v9fs_list_xattr(FsContext *ctx, const char *path, void *value,
+                        size_t vsize);
+int v9fs_set_xattr(FsContext *ctx, const char *path, const char *name,
+                          void *value, size_t size, int flags);
+int v9fs_remove_xattr(FsContext *ctx, const char *path, const char *name);
+ssize_t pt_listxattr(FsContext *ctx, const char *path, char *name, void *value,
+                     size_t size);
+
+static inline ssize_t pt_getxattr(FsContext *ctx, const char *path,
+                                  const char *name, void *value, size_t size)
+{
+    char *buffer;
+    ssize_t ret;
+
+    buffer = rpath(ctx, path);
+    ret = lgetxattr(buffer, name, value, size);
+    g_free(buffer);
+    return ret;
+}
+
+static inline int pt_setxattr(FsContext *ctx, const char *path,
+                              const char *name, void *value,
+                              size_t size, int flags)
+{
+    char *buffer;
+    int ret;
+
+    buffer = rpath(ctx, path);
+    ret = lsetxattr(buffer, name, value, size, flags);
+    g_free(buffer);
+    return ret;
+}
+
+static inline int pt_removexattr(FsContext *ctx,
+                                 const char *path, const char *name)
+{
+    char *buffer;
+    int ret;
+
+    buffer = rpath(ctx, path);
+    ret = lremovexattr(path, name);
+    g_free(buffer);
+    return ret;
+}
+
+static inline ssize_t notsup_getxattr(FsContext *ctx, const char *path,
+                                      const char *name, void *value,
+                                      size_t size)
+{
+    errno = ENOTSUP;
+    return -1;
+}
+
+static inline int notsup_setxattr(FsContext *ctx, const char *path,
+                                  const char *name, void *value,
+                                  size_t size, int flags)
+{
+    errno = ENOTSUP;
+    return -1;
+}
+
+static inline ssize_t notsup_listxattr(FsContext *ctx, const char *path,
+                                       char *name, void *value, size_t size)
+{
+    return 0;
+}
+
+static inline int notsup_removexattr(FsContext *ctx,
+                                     const char *path, const char *name)
+{
+    errno = ENOTSUP;
+    return -1;
+}
+
+#endif