wlantest: Add debug print with frame number for decryption failures

This makes it more convenient to find the frames that could not be
decrypted.

Signed-off-by: Jouni Malinen <j@w1.fi>

diff --git a/wlantest/rx_data.c b/wlantest/rx_data.c
index e8160c3f6f9ea20617729c256fae60dd9535d8f2..df78953f2dd59d0091fff23393c8a247802c60c4 100644 (file)
--- a/wlantest/rx_data.c
+++ b/wlantest/rx_data.c
@@ -325,8 +325,13 @@ skip_replay_det:
                        os_memcpy(bss->rsc[keyid], pn, 6);
                write_pcap_decrypted(wt, (const u8 *) hdr, hdrlen,
                                     decrypted, dlen);
-       } else
+       } else {
+               wpa_printf(MSG_DEBUG, "Failed to decrypt frame (group) #%u A2="
+                          MACSTR " seq=%u",
+                          wt->frame_num, MAC2STR(hdr->addr2),
+                          WLAN_GET_SEQ_SEQ(le_to_host16(hdr->seq_ctrl)));
                add_note(wt, MSG_DEBUG, "Failed to decrypt frame (group)");
+       }
        os_free(decrypted);
 }
 
@@ -370,6 +375,7 @@ static void rx_data_bss_prot(struct wlantest *wt,
        int try_ptk_iter = 0;
        int replay = 0;
        int only_zero_tk = 0;
+       u16 seq_ctrl = le_to_host16(hdr->seq_ctrl);
 
        if (hdr->addr1[0] & 0x01) {
                rx_data_bss_prot_group(wt, hdr, hdrlen, qos, dst, src,
@@ -542,7 +548,6 @@ static void rx_data_bss_prot(struct wlantest *wt,
        else
                ccmp_get_pn(pn, data);
        if (os_memcmp(pn, rsc, 6) <= 0) {
-               u16 seq_ctrl = le_to_host16(hdr->seq_ctrl);
                char pn_hex[6 * 2 + 1], rsc_hex[6 * 2 + 1];
 
                wpa_snprintf_hex(pn_hex, sizeof(pn_hex), pn, 6);
@@ -649,8 +654,14 @@ check_zero_tk:
                        os_memset(sta->rsc_fromds, 0, sizeof(sta->rsc_fromds));
                }
        } else {
-               if (!try_ptk_iter && !only_zero_tk)
+               if (!try_ptk_iter && !only_zero_tk) {
+                       wpa_printf(MSG_DEBUG,
+                                  "Failed to decrypt frame #%u A2=" MACSTR
+                                  " seq=%u",
+                                  wt->frame_num, MAC2STR(hdr->addr2),
+                                  WLAN_GET_SEQ_SEQ(seq_ctrl));
                        add_note(wt, MSG_DEBUG, "Failed to decrypt frame");
+               }
 
                /* Assume the frame was corrupted and there was no FCS to check.
                 * Allow retry of this particular frame to be processed so that