From: Shivani Baranwal <quic_shivbara@xxxxxxxxxxx>
Add utility API to fetch Multi-Link Device(MLD) address from
Multi-Link(ML) IE.
Signed-off-by: Shivani Baranwal <quic_shivbara@xxxxxxxxxxx>
---
src/common/ieee802_11_common.c | 18 ++++++++++++++++++
src/common/ieee802_11_common.h | 1 +
2 files changed, 19 insertions(+)
diff --git a/src/common/ieee802_11_common.c b/src/common/ieee802_11_common.c
index c8ee90cd7..f781a13ea 100644
--- a/src/common/ieee802_11_common.c
+++ b/src/common/ieee802_11_common.c
@@ -2755,3 +2755,21 @@ struct wpabuf * ieee802_11_defrag(struct ieee802_11_elems *elems,
return ieee802_11_defrag_data(elems, eid, eid_ext, data, len);
}
+
+#define MULTI_LINK_IE_MINIMUM_BYTES 9
+#define ML_IE_MLD_ADDR_OFFSET \
+ (2 + /* Control field */ \
+ 1) /* Common Info length field */
+void wpa_get_mld_addr(u8 *mld_addr, const u8 *buf, size_t len)
+{
+ if (len < MULTI_LINK_IE_MINIMUM_BYTES)
+ wpa_printf(MSG_ERROR, "Incomplete Multi-Link IE");
+
+ buf += ML_IE_MLD_ADDR_OFFSET;
+ len -= ML_IE_MLD_ADDR_OFFSET;
+
+ /*
+ * Getting AP mld addr
+ */
+ memcpy(mld_addr, buf, ETH_ALEN);
+}
diff --git a/src/common/ieee802_11_common.h b/src/common/ieee802_11_common.h
index 94e1d7b8b..e481af8da 100644
--- a/src/common/ieee802_11_common.h
+++ b/src/common/ieee802_11_common.h
@@ -343,5 +343,6 @@ struct wpabuf * ieee802_11_defrag_data(struct ieee802_11_elems *elems,
const u8 *data, u8 len);
struct wpabuf * ieee802_11_defrag(struct ieee802_11_elems *elems,
u8 eid, u8 eid_ext);
+void wpa_get_mld_addr(u8 *mld_addr, const u8 *buf, size_t len);
#endif /* IEEE802_11_COMMON_H */
--
2.25.1
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