[v6,14/17] wpa_supplicant: FILS Extended Key ID support
diff mbox series

Message ID 20190915200837.196283-15-alexander@wetzel-home.de
State New
Headers show
Series
  • Support seamless PTK rekeys with Extended Key ID
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Commit Message

Alexander Wetzel Sept. 15, 2019, 8:08 p.m. UTC
This implements the FILS Extended Key ID support in wpa_supplicant
compatible to our implementation for hostapd:

When supporting Extended Key ID the KeyID for the pairwise key must be
included in the FILS handshake.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
---
 src/rsn_supp/wpa.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

Patch
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diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c
index 802f4f362..3bd8fcd99 100644
--- a/src/rsn_supp/wpa.c
+++ b/src/rsn_supp/wpa.c
@@ -4536,11 +4536,16 @@  int fils_process_assoc_resp(struct wpa_sm *sm, const u8 *resp, size_t len)
 			   keylen, (long unsigned int) sm->ptk.tk_len);
 		goto fail;
 	}
+
+	if (handle_extended_key_id(sm, &kde,
+				   elems.rsn_ie - 2, elems.rsn_ie_len + 2))
+		goto fail;
+
 	rsclen = wpa_cipher_rsc_len(sm->pairwise_cipher);
 	wpa_hexdump_key(MSG_DEBUG, "FILS: Set TK to driver",
 			sm->ptk.tk, keylen);
-	if (wpa_sm_set_key(sm, alg, sm->bssid, 0, 1, null_rsc, rsclen,
-			   sm->ptk.tk, keylen, KEY_TYPE_PAIRWISE) < 0) {
+	if (wpa_sm_set_key(sm, alg, sm->bssid, sm->keyidx_active, 1, null_rsc,
+			   rsclen, sm->ptk.tk, keylen, KEY_TYPE_PAIRWISE) < 0) {
 		wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
 			"FILS: Failed to set PTK to the driver (alg=%d keylen=%d bssid="
 			MACSTR ")",