diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/virtiofsd/passthrough_ll.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough_ll.c index 38b2af8599..64b5b4fbb1 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -2465,6 +2465,11 @@ static void lo_flock(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi, * Automatically reversed on read */ #define XATTR_MAP_FLAG_PREFIX (1 << 2) +/* + * The attribute is unsupported; + * ENOTSUP on write, hidden on read. + */ +#define XATTR_MAP_FLAG_UNSUPPORTED (1 << 3) /* scopes */ /* Apply rule to get/set/remove */ @@ -2636,6 +2641,8 @@ static void parse_xattrmap(struct lo_data *lo) tmp_entry.flags |= XATTR_MAP_FLAG_OK; } else if (strstart(map, "bad", &map)) { tmp_entry.flags |= XATTR_MAP_FLAG_BAD; + } else if (strstart(map, "unsupported", &map)) { + tmp_entry.flags |= XATTR_MAP_FLAG_UNSUPPORTED; } else if (strstart(map, "map", &map)) { /* * map is sugar that adds a number of rules, and must be @@ -2646,8 +2653,8 @@ static void parse_xattrmap(struct lo_data *lo) } else { fuse_log(FUSE_LOG_ERR, "%s: Unexpected type;" - "Expecting 'prefix', 'ok', 'bad' or 'map' in rule %zu\n", - __func__, lo->xattr_map_nentries); + "Expecting 'prefix', 'ok', 'bad', 'unsupported' or 'map'" + " in rule %zu\n", __func__, lo->xattr_map_nentries); exit(1); } @@ -2749,6 +2756,9 @@ static int xattr_map_client(const struct lo_data *lo, const char *client_name, if (cur_entry->flags & XATTR_MAP_FLAG_BAD) { return -EPERM; } + if (cur_entry->flags & XATTR_MAP_FLAG_UNSUPPORTED) { + return -ENOTSUP; + } if (cur_entry->flags & XATTR_MAP_FLAG_OK) { /* Unmodified name */ return 0; @@ -2788,7 +2798,8 @@ static int xattr_map_server(const struct lo_data *lo, const char *server_name, if ((cur_entry->flags & XATTR_MAP_FLAG_SERVER) && (strstart(server_name, cur_entry->prepend, &end))) { - if (cur_entry->flags & XATTR_MAP_FLAG_BAD) { + if (cur_entry->flags & XATTR_MAP_FLAG_BAD || + cur_entry->flags & XATTR_MAP_FLAG_UNSUPPORTED) { return -ENODATA; } if (cur_entry->flags & XATTR_MAP_FLAG_OK) { |