diff options
| author | Benjamin Berg <benjamin.berg@intel.com> | 2023-06-16 09:54:05 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-06-19 12:05:29 +0200 |
| commit | f837a653a09700daa136a3db49c0c97d7295ca30 (patch) | |
| tree | 90346dcd83b8a7178a635eb5fed80ff0c5c4de0a /include/net/cfg80211.h | |
| parent | 39432f8a3752a87a53fd8d5e51824a43aaae5cab (diff) | |
wifi: cfg80211: add element defragmentation helper
This is already needed within mac80211 and support is also needed by
cfg80211 to parse ML elements.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230616094949.29c3ebeed10d.I009c049289dd0162c2e858ed8b68d2875a672ed6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/cfg80211.h')
| -rw-r--r-- | include/net/cfg80211.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index e912b7cd3093..9972de114d73 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -6677,6 +6677,28 @@ cfg80211_find_vendor_ie(unsigned int oui, int oui_type, } /** + * cfg80211_defragment_element - Defrag the given element data into a buffer + * + * @elem: the element to defragment + * @ies: elements where @elem is contained + * @ieslen: length of @ies + * @data: buffer to store element data + * @data_len: length of @data + * @frag_id: the element ID of fragments + * + * Return: length of @data, or -EINVAL on error + * + * Copy out all data from an element that may be fragmented into @data, while + * skipping all headers. + * + * The function uses memmove() internally. It is acceptable to defragment an + * element in-place. + */ +ssize_t cfg80211_defragment_element(const struct element *elem, const u8 *ies, + size_t ieslen, u8 *data, size_t data_len, + u8 frag_id); + +/** * cfg80211_send_layer2_update - send layer 2 update frame * * @dev: network device |