evin/ms-nfs41-client
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ea: query each superblock for named attr support

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adds a new function nfs41_superblock_getattr(), which adds an OPENATTR call with createdir=0 after the GETATTR to check for named attribute support.  OPENATTR will either return ERR_NOTSUPP if not supported, or OK/ERR_NOENT depending on whether named attributes are present on the given file.  we can't query for the 'named_attr' attribute, because it only tells us whether the given file contains named attributes

if named attributes are supported on a superblock, it will return FILE_SUPPORTS_EXTENDED_ATTRIBUTES for associated volume queries

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
This commit is contained in:
Casey Bodley 2012-04-05 12:02:07 -04:00 • committed by unknown
parent fd591f92d7
commit b3229d20f6
5 changed files with 82 additions and 3 deletions
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9
daemon/nfs41_superblock.c
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@ -75,6 +75,7 @@ static int get_superblock_attrs(
IN nfs41_superblock *superblock,
IN nfs41_path_fh *file)
{
bool_t supports_named_attrs;
int status;
bitmap4 attr_request;
nfs41_file_info info = { 0 };
@ -93,10 +94,11 @@ static int get_superblock_attrs(
info.suppattr_exclcreat = &superblock->suppattr_exclcreat;
info.time_delta = &superblock->time_delta;
status = nfs41_getattr(session, file, &attr_request, &info);
status = nfs41_superblock_getattr(session, file,
&attr_request, &info, &supports_named_attrs);
if (status) {
eprintf("nfs41_getattr() failed with %s when fetching attributes for "
"fsid(%llu,%llu)\n", nfs_error_string(status),
eprintf("nfs41_superblock_getattr() failed with %s when fetching "
"attributes for fsid(%llu,%llu)\n", nfs_error_string(status),
superblock->fsid.major, superblock->fsid.minor);
goto out;
}
@ -115,6 +117,7 @@ static int get_superblock_attrs(
superblock->aclsupport = info.aclsupport;
superblock->link_support = info.link_support;
superblock->symlink_support = info.symlink_support;
superblock->ea_support = supports_named_attrs;
superblock->case_preserving = info.case_preserving;
superblock->case_insensitive = info.case_insensitive;