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debug: Add option to log to Linux tracing

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Add the option (-T) to wpa_supplicant to log all debug messages into the
kernel tracing, allowing to aggregate kernel debugging with
wpa_supplicant debugging and recording all with trace-cmd.

Since tracing has relatively low overhead and can be filtered
afterwards, record all messages regardless of log level. However, it
will honor the -K option and not record key material by default.

Signed-hostap: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-03-31 13:55:33 +03:00 • committed by Jouni Malinen
parent 526ec4aee8
commit 4f68895e92
7 changed files with 185 additions and 1 deletions
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18
src/utils/wpa_debug.h
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@ -255,6 +255,24 @@ static inline void wpa_debug_close_syslog(void)
#endif /* CONFIG_DEBUG_SYSLOG */
#ifdef CONFIG_DEBUG_LINUX_TRACING
int wpa_debug_open_linux_tracing(void);
void wpa_debug_close_linux_tracing(void);
#else /* CONFIG_DEBUG_LINUX_TRACING */
static inline int wpa_debug_open_linux_tracing(void)
{
return 0;
}
static inline void wpa_debug_close_linux_tracing(void)
{
}
#endif /* CONFIG_DEBUG_LINUX_TRACING */
#ifdef EAPOL_TEST
#define WPA_ASSERT(a) \