diff options
| author | Claudio Jeker <claudio@cvs.openbsd.org> | 2007-03-26 16:41:34 +0000 |
|---|---|---|
| committer | Claudio Jeker <claudio@cvs.openbsd.org> | 2007-03-26 16:41:34 +0000 |
| commit | a146e99cfec03dd4127176804587ba5082fdee1c (patch) | |
| tree | 08bb4e5ec0328fe47b4f9929e133eb9afa7368ee | |
| parent | 98065935cbbff9a39dfe6880349145ff9b46f042 (diff) | |
Print the reason code of deauth and disassociation packets if in verbose mode.
This helps debugging issues with stations that fail to join a network.
OK mglocker@, reyk@, jsg@
| -rw-r--r-- | usr.sbin/tcpdump/print-802_11.c | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/usr.sbin/tcpdump/print-802_11.c b/usr.sbin/tcpdump/print-802_11.c index 901538c50d8..ce43ce46c34 100644 --- 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 1.7 2006/06/23 21:53:01 reyk Exp $ */ +/* $OpenBSD: print-802_11.c,v 1.8 2007/03/26 16:41:33 claudio Exp $ */ /* * Copyright (c) 2005 Reyk Floeter <reyk@openbsd.org> @@ -65,6 +65,7 @@ int ieee80211_elements(struct ieee80211_frame *, u_int); int ieee80211_frame(struct ieee80211_frame *, u_int); int ieee80211_print(struct ieee80211_frame *, u_int); u_int ieee80211_any2ieee(u_int, u_int); +void ieee80211_reason(u_int16_t); #define TCARR(a) TCHECK2(*a, sizeof(a)) @@ -398,6 +399,11 @@ ieee80211_frame(struct ieee80211_frame *wh, u_int len) break; } break; + case IEEE80211_FC0_SUBTYPE_DEAUTH: + case IEEE80211_FC0_SUBTYPE_DISASSOC: + TCHECK2(*frm, 2); /* Reason Code */ + ieee80211_reason(frm[0] | (frm[1] << 8)); + break; } break; default: @@ -668,3 +674,54 @@ ieee802_11_radio_if_print(u_char *user, const struct pcap_pkthdr *h, putchar('\n'); } } + +void +ieee80211_reason(u_int16_t reason) +{ + if (!vflag) + return; + + switch (reason) { + case IEEE80211_REASON_UNSPECIFIED: + printf(", unspecified failure"); + break; + case IEEE80211_REASON_AUTH_EXPIRE: + printf(", authentication expired"); + break; + case IEEE80211_REASON_AUTH_LEAVE: + printf(", deauth - station left"); + break; + case IEEE80211_REASON_ASSOC_EXPIRE: + printf(", association expired"); + break; + case IEEE80211_REASON_ASSOC_TOOMANY: + printf(", too many associated stations"); + break; + case IEEE80211_REASON_NOT_AUTHED: + printf(", not authenticated"); + break; + case IEEE80211_REASON_NOT_ASSOCED: + printf(", not associated"); + break; + case IEEE80211_REASON_ASSOC_LEAVE: + printf(", disassociated - station left"); + break; + case IEEE80211_REASON_ASSOC_NOT_AUTHED: + printf(", association but not authenticated"); + break; + case IEEE80211_REASON_RSN_REQUIRED: + printf(", rsn required"); + break; + case IEEE80211_REASON_RSN_INCONSISTENT: + printf(", rsn inconsistent"); + break; + case IEEE80211_REASON_IE_INVALID: + printf(", ie invalid"); + break; + case IEEE80211_REASON_MIC_FAILURE: + printf(", mic failure"); + break; + default: + printf(", unknown reason %u", reason); + } +} |