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authorCalvin Owens <jcalvinowens@gmail.com>2014-02-11 12:36:24 -0600
committerJohannes Berg <johannes.berg@intel.com>2014-02-12 11:44:21 +0100
commitdfa1ad299184abeb8fea170e65727e263ac236a5 (patch)
tree1f434e96de744f17df2f5546ea3d2bbe40dad8d7 /net/mac80211
parent1d5e1266cf4d96660e9b01577fdf8046b076cb58 (diff)
downloadlinux-dfa1ad299184abeb8fea170e65727e263ac236a5.tar.bz2
ieee80211: Print human-readable disassoc/deauth reason codes
Create a function to return a descriptive string for each reason code, and print that in addition to the numeric value in the kernel log. These codes are easily found on popular search engines, but one is generally not able to access the internet when dealing with wireless connectivity issues. Signed-off-by: Calvin Owens <jcalvinowens@gmail.com> [use 'unknown' rather than 'invalid' since more valid codes exist] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/mlme.c68
1 files changed, 62 insertions, 6 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index b9432b575444..46b62bb3677c 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2249,6 +2249,62 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
/* ignore frame -- wait for timeout */
}
+#define case_WLAN(type) \
+ case WLAN_REASON_##type: return #type
+
+static const char *ieee80211_get_reason_code_string(u16 reason_code)
+{
+ switch (reason_code) {
+ case_WLAN(UNSPECIFIED);
+ case_WLAN(PREV_AUTH_NOT_VALID);
+ case_WLAN(DEAUTH_LEAVING);
+ case_WLAN(DISASSOC_DUE_TO_INACTIVITY);
+ case_WLAN(DISASSOC_AP_BUSY);
+ case_WLAN(CLASS2_FRAME_FROM_NONAUTH_STA);
+ case_WLAN(CLASS3_FRAME_FROM_NONASSOC_STA);
+ case_WLAN(DISASSOC_STA_HAS_LEFT);
+ case_WLAN(STA_REQ_ASSOC_WITHOUT_AUTH);
+ case_WLAN(DISASSOC_BAD_POWER);
+ case_WLAN(DISASSOC_BAD_SUPP_CHAN);
+ case_WLAN(INVALID_IE);
+ case_WLAN(MIC_FAILURE);
+ case_WLAN(4WAY_HANDSHAKE_TIMEOUT);
+ case_WLAN(GROUP_KEY_HANDSHAKE_TIMEOUT);
+ case_WLAN(IE_DIFFERENT);
+ case_WLAN(INVALID_GROUP_CIPHER);
+ case_WLAN(INVALID_PAIRWISE_CIPHER);
+ case_WLAN(INVALID_AKMP);
+ case_WLAN(UNSUPP_RSN_VERSION);
+ case_WLAN(INVALID_RSN_IE_CAP);
+ case_WLAN(IEEE8021X_FAILED);
+ case_WLAN(CIPHER_SUITE_REJECTED);
+ case_WLAN(DISASSOC_UNSPECIFIED_QOS);
+ case_WLAN(DISASSOC_QAP_NO_BANDWIDTH);
+ case_WLAN(DISASSOC_LOW_ACK);
+ case_WLAN(DISASSOC_QAP_EXCEED_TXOP);
+ case_WLAN(QSTA_LEAVE_QBSS);
+ case_WLAN(QSTA_NOT_USE);
+ case_WLAN(QSTA_REQUIRE_SETUP);
+ case_WLAN(QSTA_TIMEOUT);
+ case_WLAN(QSTA_CIPHER_NOT_SUPP);
+ case_WLAN(MESH_PEER_CANCELED);
+ case_WLAN(MESH_MAX_PEERS);
+ case_WLAN(MESH_CONFIG);
+ case_WLAN(MESH_CLOSE);
+ case_WLAN(MESH_MAX_RETRIES);
+ case_WLAN(MESH_CONFIRM_TIMEOUT);
+ case_WLAN(MESH_INVALID_GTK);
+ case_WLAN(MESH_INCONSISTENT_PARAM);
+ case_WLAN(MESH_INVALID_SECURITY);
+ case_WLAN(MESH_PATH_ERROR);
+ case_WLAN(MESH_PATH_NOFORWARD);
+ case_WLAN(MESH_PATH_DEST_UNREACHABLE);
+ case_WLAN(MAC_EXISTS_IN_MBSS);
+ case_WLAN(MESH_CHAN_REGULATORY);
+ case_WLAN(MESH_CHAN);
+ default: return "<unknown>";
+ }
+}
static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, size_t len)
@@ -2270,8 +2326,8 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
- sdata_info(sdata, "deauthenticated from %pM (Reason: %u)\n",
- bssid, reason_code);
+ sdata_info(sdata, "deauthenticated from %pM (Reason: %u=%s)\n",
+ bssid, reason_code, ieee80211_get_reason_code_string(reason_code));
ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
@@ -4340,8 +4396,8 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
bool report_frame = false;
sdata_info(sdata,
- "deauthenticating from %pM by local choice (reason=%d)\n",
- req->bssid, req->reason_code);
+ "deauthenticating from %pM by local choice (Reason: %u=%s)\n",
+ req->bssid, req->reason_code, ieee80211_get_reason_code_string(req->reason_code));
if (ifmgd->auth_data) {
drv_mgd_prepare_tx(sdata->local, sdata);
@@ -4387,8 +4443,8 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
return -ENOLINK;
sdata_info(sdata,
- "disassociating from %pM by local choice (reason=%d)\n",
- req->bss->bssid, req->reason_code);
+ "disassociating from %pM by local choice (Reason: %u=%s)\n",
+ req->bss->bssid, req->reason_code, ieee80211_get_reason_code_string(req->reason_code));
memcpy(bssid, req->bss->bssid, ETH_ALEN);
ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC,