Have tcpdump split the 802.11 sequence number field into its sequence number

and fragment number components instead of printing the whole field in decimal.

ok sthen@ kn@ jca@

diff --git a/usr.sbin/tcpdump/print-802_11.c b/usr.sbin/tcpdump/print-802_11.c
index 7528f50..4af7bdb 100644 (file)
--- a/usr.sbin/tcpdump/print-802_11.c
+++ b/usr.sbin/tcpdump/print-802_11.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: print-802_11.c,v 1.40 2017/09/01 14:04:49 stsp Exp $  */
+/*     $OpenBSD: print-802_11.c,v 1.41 2021/06/28 14:35:42 stsp Exp $  */
 
 /*
  * Copyright (c) 2005 Reyk Floeter <reyk@openbsd.org>
@@ -162,7 +162,9 @@ ieee80211_hdr(struct ieee80211_frame *wh)
                u_int16_t seq;
                TCARR(wh->i_seq);
                bcopy(wh->i_seq, &seq, sizeof(u_int16_t));
-               printf(" (seq %u): ", letoh16(seq));
+               printf(" (seq %u frag %u): ",
+                   letoh16(seq) >> IEEE80211_SEQ_SEQ_SHIFT,
+                   letoh16(seq) & IEEE80211_SEQ_FRAG_MASK);
        } else
                printf(": ");