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symlink: lookup handles ERR_SYMLINK

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modified nfs41_lookup() to handle NFS4ERR_SYMLINK by setting parent=symlink and returning ERROR_REPARSE

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
This commit is contained in:
Casey Bodley 2010-09-28 13:28:49 -04:00 • committed by unknown
parent 5748d17934
commit a92fb8930e
1 changed files with 17 additions and 1 deletions
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18
daemon/lookup.c
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@ -175,6 +175,7 @@ static int map_lookup_error(int status, bool_t is_last_component)
case NFS4ERR_NOENT:
if (is_last_component) return ERROR_FILE_NOT_FOUND;
else return ERROR_PATH_NOT_FOUND;
case NFS4ERR_SYMLINK: return ERROR_REPARSE;
case NFS4ERR_MOVED: return ERROR_FILESYSTEM_ABSENT;
default: return nfs_to_windows_error(status, ERROR_FILE_NOT_FOUND);
}
@ -238,9 +239,15 @@ static int server_lookup(
}
for (i = 0; i < count; i++) {
if (res->lookup[i].status == NFS4ERR_NOENT)
if (res->lookup[i].status == NFS4ERR_SYMLINK) {
/* return the symlink as the parent file */
last_component(path, args->lookup[i].name->name, &file->name);
if (parent_out) *parent_out = file;
} else if (res->lookup[i].status == NFS4ERR_NOENT) {
/* insert a negative lookup entry */
nfs41_name_cache_insert(session_name_cache(session),
path, args->lookup[i].name, NULL, NULL, NULL);
}
status = res->lookup[i].status; if (status) break;
if (res->getfh[i].status == NFS4ERR_MOVED) {
@ -340,6 +347,15 @@ static int server_lookup_loop(
status = server_lookup(session, dir, path->path, path_end, count,
&args, &res, &parent, &target, info_out);
if (status == ERROR_REPARSE) {
/* copy the component name of the symlink */
if (parent_out && parent) {
const ptrdiff_t offset = parent->name.name - path->path;
parent_out->name.name = parent_out->path->path + offset;
parent_out->name.len = parent->name.len;
}
goto out_parent;
}
if (status == ERROR_FILE_NOT_FOUND && is_last_component(path_pos, path_end))
goto out_parent;
if (status)