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>
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@ -102,3 +102,13 @@ config LIB80211_CRYPT_CCMP
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config LIB80211_CRYPT_TKIP
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config LIB80211_CRYPT_TKIP
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tristate
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tristate
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config LIB80211_DEBUG
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bool "lib80211 debugging messages"
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depends on LIB80211
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default n
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---help---
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You can enable this if you want verbose debugging messages
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from lib80211.
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If unsure, say N.
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@ -337,6 +337,7 @@ static int lib80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
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pos += 8;
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pos += 8;
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if (ccmp_replay_check(pn, key->rx_pn)) {
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if (ccmp_replay_check(pn, key->rx_pn)) {
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#ifdef CONFIG_LIB80211_DEBUG
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if (net_ratelimit()) {
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if (net_ratelimit()) {
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printk(KERN_DEBUG "CCMP: replay detected: STA=%pM "
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printk(KERN_DEBUG "CCMP: replay detected: STA=%pM "
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"previous PN %02x%02x%02x%02x%02x%02x "
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"previous PN %02x%02x%02x%02x%02x%02x "
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@ -346,6 +347,7 @@ static int lib80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
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key->rx_pn[3], key->rx_pn[4], key->rx_pn[5],
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key->rx_pn[3], key->rx_pn[4], key->rx_pn[5],
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pn[0], pn[1], pn[2], pn[3], pn[4], pn[5]);
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pn[0], pn[1], pn[2], pn[3], pn[4], pn[5]);
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}
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}
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#endif
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key->dot11RSNAStatsCCMPReplays++;
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key->dot11RSNAStatsCCMPReplays++;
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return -4;
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return -4;
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}
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}
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@ -465,12 +465,14 @@ static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
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pos += 8;
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pos += 8;
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if (tkip_replay_check(iv32, iv16, tkey->rx_iv32, tkey->rx_iv16)) {
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if (tkip_replay_check(iv32, iv16, tkey->rx_iv32, tkey->rx_iv16)) {
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#ifdef CONFIG_LIB80211_DEBUG
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if (net_ratelimit()) {
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if (net_ratelimit()) {
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printk(KERN_DEBUG "TKIP: replay detected: STA=%pM"
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printk(KERN_DEBUG "TKIP: replay detected: STA=%pM"
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" previous TSC %08x%04x received TSC "
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" previous TSC %08x%04x received TSC "
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"%08x%04x\n", hdr->addr2,
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"%08x%04x\n", hdr->addr2,
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tkey->rx_iv32, tkey->rx_iv16, iv32, iv16);
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tkey->rx_iv32, tkey->rx_iv16, iv32, iv16);
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}
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}
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#endif
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tkey->dot11RSNAStatsTKIPReplays++;
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tkey->dot11RSNAStatsTKIPReplays++;
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return -4;
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return -4;
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}
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}
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@ -505,10 +507,12 @@ static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
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* it needs to be recalculated for the next packet. */
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* it needs to be recalculated for the next packet. */
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tkey->rx_phase1_done = 0;
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tkey->rx_phase1_done = 0;
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}
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}
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#ifdef CONFIG_LIB80211_DEBUG
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if (net_ratelimit()) {
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if (net_ratelimit()) {
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printk(KERN_DEBUG "TKIP: ICV error detected: STA="
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printk(KERN_DEBUG "TKIP: ICV error detected: STA="
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"%pM\n", hdr->addr2);
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"%pM\n", hdr->addr2);
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}
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}
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#endif
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tkey->dot11RSNAStatsTKIPICVErrors++;
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tkey->dot11RSNAStatsTKIPICVErrors++;
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return -5;
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return -5;
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}
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}
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