ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wlantest/gcmp.c b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wlantest/gcmp.c
new file mode 100644
index 0000000..a29496d
--- /dev/null
+++ b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wlantest/gcmp.c
@@ -0,0 +1,171 @@
+/*
+ * GCM with GMAC Protocol (GCMP)
+ * Copyright (c) 2012, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "common/ieee802_11_defs.h"
+#include "crypto/aes.h"
+#include "crypto/aes_wrap.h"
+#include "wlantest.h"
+
+
+static void gcmp_aad_nonce(const struct ieee80211_hdr *hdr, const u8 *data,
+ const u8 *a1, const u8 *a2, const u8 *a3,
+ u8 *aad, size_t *aad_len, u8 *nonce)
+{
+ u16 fc, stype, seq;
+ int qos = 0, addr4 = 0;
+ u8 *pos;
+
+ fc = le_to_host16(hdr->frame_control);
+ stype = WLAN_FC_GET_STYPE(fc);
+ if ((fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) ==
+ (WLAN_FC_TODS | WLAN_FC_FROMDS))
+ addr4 = 1;
+
+ if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_DATA) {
+ fc &= ~0x0070; /* Mask subtype bits */
+ if (stype & 0x08) {
+ const u8 *qc;
+ qos = 1;
+ fc &= ~WLAN_FC_HTC;
+ qc = (const u8 *) (hdr + 1);
+ if (addr4)
+ qc += ETH_ALEN;
+ }
+ }
+
+ fc &= ~(WLAN_FC_RETRY | WLAN_FC_PWRMGT | WLAN_FC_MOREDATA);
+ WPA_PUT_LE16(aad, fc);
+ pos = aad + 2;
+ os_memcpy(pos, hdr->addr1, 3 * ETH_ALEN);
+ if (a1)
+ os_memcpy(pos, a1, ETH_ALEN);
+ if (a2)
+ os_memcpy(pos + ETH_ALEN, a2, ETH_ALEN);
+ if (a3)
+ os_memcpy(pos + 2 * ETH_ALEN, a3, ETH_ALEN);
+ pos += 3 * ETH_ALEN;
+ seq = le_to_host16(hdr->seq_ctrl);
+ seq &= ~0xfff0; /* Mask Seq#; do not modify Frag# */
+ WPA_PUT_LE16(pos, seq);
+ pos += 2;
+
+ os_memcpy(pos, hdr + 1, addr4 * ETH_ALEN + qos * 2);
+ pos += addr4 * ETH_ALEN;
+ if (qos) {
+ pos[0] &= ~0x70;
+ if (1 /* FIX: either device has SPP A-MSDU Capab = 0 */)
+ pos[0] &= ~0x80;
+ pos++;
+ *pos++ = 0x00;
+ }
+
+ *aad_len = pos - aad;
+
+ if (a2)
+ os_memcpy(nonce, a2, ETH_ALEN);
+ else
+ os_memcpy(nonce, hdr->addr2, ETH_ALEN);
+ nonce[6] = data[7]; /* PN5 */
+ nonce[7] = data[6]; /* PN4 */
+ nonce[8] = data[5]; /* PN3 */
+ nonce[9] = data[4]; /* PN2 */
+ nonce[10] = data[1]; /* PN1 */
+ nonce[11] = data[0]; /* PN0 */
+}
+
+
+u8 * gcmp_decrypt(const u8 *tk, size_t tk_len, const struct ieee80211_hdr *hdr,
+ const u8 *a1, const u8 *a2, const u8 *a3,
+ const u8 *data, size_t data_len, size_t *decrypted_len)
+{
+ u8 aad[30], nonce[12], *plain;
+ size_t aad_len, mlen;
+ const u8 *m;
+
+ if (data_len < 8 + 16)
+ return NULL;
+
+ plain = os_malloc(data_len + AES_BLOCK_SIZE);
+ if (plain == NULL)
+ return NULL;
+
+ m = data + 8;
+ mlen = data_len - 8 - 16;
+
+ os_memset(aad, 0, sizeof(aad));
+ gcmp_aad_nonce(hdr, data, a1, a2, a3, aad, &aad_len, nonce);
+ wpa_hexdump(MSG_EXCESSIVE, "GCMP AAD", aad, aad_len);
+ wpa_hexdump(MSG_EXCESSIVE, "GCMP nonce", nonce, sizeof(nonce));
+
+ if (aes_gcm_ad(tk, tk_len, nonce, sizeof(nonce), m, mlen, aad, aad_len,
+ m + mlen, plain) < 0) {
+ u16 seq_ctrl = le_to_host16(hdr->seq_ctrl);
+ wpa_printf(MSG_INFO, "Invalid GCMP frame: A1=" MACSTR
+ " A2=" MACSTR " A3=" MACSTR " seq=%u frag=%u",
+ MAC2STR(hdr->addr1), MAC2STR(hdr->addr2),
+ MAC2STR(hdr->addr3),
+ WLAN_GET_SEQ_SEQ(seq_ctrl),
+ WLAN_GET_SEQ_FRAG(seq_ctrl));
+ os_free(plain);
+ return NULL;
+ }
+
+ *decrypted_len = mlen;
+ return plain;
+}
+
+
+u8 * gcmp_encrypt(const u8 *tk, size_t tk_len, const u8 *frame, size_t len,
+ size_t hdrlen, const u8 *qos, const u8 *a1, const u8 *a2,
+ const u8 *a3, const u8 *pn, int keyid, size_t *encrypted_len)
+{
+ u8 aad[30], nonce[12], *crypt, *pos;
+ size_t aad_len, plen;
+ struct ieee80211_hdr *hdr;
+
+ if (len < hdrlen || hdrlen < 24)
+ return NULL;
+ plen = len - hdrlen;
+
+ crypt = os_malloc(hdrlen + 8 + plen + 16 + AES_BLOCK_SIZE);
+ if (crypt == NULL)
+ return NULL;
+
+ os_memcpy(crypt, frame, hdrlen);
+ hdr = (struct ieee80211_hdr *) crypt;
+ pos = crypt + hdrlen;
+ *pos++ = pn[5]; /* PN0 */
+ *pos++ = pn[4]; /* PN1 */
+ *pos++ = 0x00; /* Rsvd */
+ *pos++ = 0x20 | (keyid << 6);
+ *pos++ = pn[3]; /* PN2 */
+ *pos++ = pn[2]; /* PN3 */
+ *pos++ = pn[1]; /* PN4 */
+ *pos++ = pn[0]; /* PN5 */
+
+ os_memset(aad, 0, sizeof(aad));
+ gcmp_aad_nonce(hdr, crypt + hdrlen, a1, a2, a3, aad, &aad_len, nonce);
+ wpa_hexdump(MSG_EXCESSIVE, "GCMP AAD", aad, aad_len);
+ wpa_hexdump(MSG_EXCESSIVE, "GCMP nonce", nonce, sizeof(nonce));
+
+ if (aes_gcm_ae(tk, tk_len, nonce, sizeof(nonce), frame + hdrlen, plen,
+ aad, aad_len, pos, pos + plen) < 0) {
+ os_free(crypt);
+ return NULL;
+ }
+
+ wpa_hexdump(MSG_EXCESSIVE, "GCMP MIC", pos + plen, 16);
+ wpa_hexdump(MSG_EXCESSIVE, "GCMP encrypted", pos, plen);
+
+ *encrypted_len = hdrlen + 8 + plen + 16;
+
+ return crypt;
+}