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authorJohn W. Linville <linville@tuxdriver.com>2009-03-11 11:05:25 -0400
committerJohn W. Linville <linville@tuxdriver.com>2009-03-16 18:01:58 -0400
commit6f16bf3bdb94b567e2b6663378efb2dbf40db133 (patch)
tree5ec502ad4c5b590182221a8af7394e05d738a56c
parentea8dbdd17099a9a5864ebd4c87e01e657b19c7ab (diff)
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lib80211: silence excessive crypto debugging messages
When they were part of the now defunct ieee80211 component, these messages were only visible when special debugging settings were enabled. Let's mirror that with a new lib80211 debugging Kconfig option. Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/wireless/Kconfig10
-rw-r--r--net/wireless/lib80211_crypt_ccmp.c2
-rw-r--r--net/wireless/lib80211_crypt_tkip.c4
3 files changed, 16 insertions, 0 deletions
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index e28e2b8fa43..092ae6faccc 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -102,3 +102,13 @@ config LIB80211_CRYPT_CCMP
config LIB80211_CRYPT_TKIP
tristate
+
+config LIB80211_DEBUG
+ bool "lib80211 debugging messages"
+ depends on LIB80211
+ default n
+ ---help---
+ You can enable this if you want verbose debugging messages
+ from lib80211.
+
+ If unsure, say N.
diff --git a/net/wireless/lib80211_crypt_ccmp.c b/net/wireless/lib80211_crypt_ccmp.c
index db428194c16..2301dc1edc4 100644
--- a/net/wireless/lib80211_crypt_ccmp.c
+++ b/net/wireless/lib80211_crypt_ccmp.c
@@ -337,6 +337,7 @@ static int lib80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
pos += 8;
if (ccmp_replay_check(pn, key->rx_pn)) {
+#ifdef CONFIG_LIB80211_DEBUG
if (net_ratelimit()) {
printk(KERN_DEBUG "CCMP: replay detected: STA=%pM "
"previous PN %02x%02x%02x%02x%02x%02x "
@@ -346,6 +347,7 @@ static int lib80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
key->rx_pn[3], key->rx_pn[4], key->rx_pn[5],
pn[0], pn[1], pn[2], pn[3], pn[4], pn[5]);
}
+#endif
key->dot11RSNAStatsCCMPReplays++;
return -4;
}
diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c
index 7e8e22bfed9..c36287399d7 100644
--- a/net/wireless/lib80211_crypt_tkip.c
+++ b/net/wireless/lib80211_crypt_tkip.c
@@ -465,12 +465,14 @@ static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
pos += 8;
if (tkip_replay_check(iv32, iv16, tkey->rx_iv32, tkey->rx_iv16)) {
+#ifdef CONFIG_LIB80211_DEBUG
if (net_ratelimit()) {
printk(KERN_DEBUG "TKIP: replay detected: STA=%pM"
" previous TSC %08x%04x received TSC "
"%08x%04x\n", hdr->addr2,
tkey->rx_iv32, tkey->rx_iv16, iv32, iv16);
}
+#endif
tkey->dot11RSNAStatsTKIPReplays++;
return -4;
}
@@ -505,10 +507,12 @@ static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
* it needs to be recalculated for the next packet. */
tkey->rx_phase1_done = 0;
}
+#ifdef CONFIG_LIB80211_DEBUG
if (net_ratelimit()) {
printk(KERN_DEBUG "TKIP: ICV error detected: STA="
"%pM\n", hdr->addr2);
}
+#endif
tkey->dot11RSNAStatsTKIPICVErrors++;
return -5;
}