Hi-- scripts/kernel-doc does not like these items to be marked as being in kernel-doc notation. scripts/kernel-doc does not recognize them as one of: struct, union, enum, typedef, so it defaults to trying to interpret these as functions, and then says: (I copied these blocks to my test megatest.c source file.) ../src/megatest.c:1214: warning: cannot understand function prototype: 'const u64 BRUTE_EMA_WEIGHT_NUMERATOR = 7; ' ../src/megatest.c:1219: warning: cannot understand function prototype: 'const u64 BRUTE_EMA_WEIGHT_DENOMINATOR = 10; ' ../src/megatest.c:1228: warning: cannot understand function prototype: 'const unsigned char BRUTE_MAX_FAULTS = 200; ' ../src/megatest.c:1239: warning: cannot understand function prototype: 'const unsigned char BRUTE_MIN_FAULTS = 5; ' ../src/megatest.c:1249: warning: cannot understand function prototype: 'const u64 BRUTE_CRASH_PERIOD_THRESHOLD = 30000; ' On 2/21/21 7:49 AM, John Wood wrote: > > +/** > + * brute_stats_ptr_lock - Lock to protect the brute_stats structure pointer. > + */ > +static DEFINE_RWLOCK(brute_stats_ptr_lock); > +/** > + * BRUTE_EMA_WEIGHT_NUMERATOR - Weight's numerator of EMA. > + */ > +static const u64 BRUTE_EMA_WEIGHT_NUMERATOR = 7; > +/** > + * BRUTE_EMA_WEIGHT_DENOMINATOR - Weight's denominator of EMA. > + */ > +static const u64 BRUTE_EMA_WEIGHT_DENOMINATOR = 10; > +/** > + * BRUTE_MAX_FAULTS - Maximum number of faults. > + * > + * If a brute force attack is running slowly for a long time, the application > + * crash period's EMA is not suitable for the detection. This type of attack > + * must be detected using a maximum number of faults. > + */ > +static const unsigned char BRUTE_MAX_FAULTS = 200; > +/** > + * BRUTE_MIN_FAULTS - Minimum number of faults. > + * > + * The application crash period's EMA cannot be used until a minimum number of > + * data has been applied to it. This constraint allows getting a trend when this > + * moving average is used. Moreover, it avoids the scenario where an application > + * fails quickly from execve system call due to reasons unrelated to a real > + * attack. > + */ > +static const unsigned char BRUTE_MIN_FAULTS = 5; > +/** > + * BRUTE_CRASH_PERIOD_THRESHOLD - Application crash period threshold. > + * > + * The units are expressed in milliseconds. > + * > + * A fast brute force attack is detected when the application crash period falls > + * below this threshold. > + */ > +static const u64 BRUTE_CRASH_PERIOD_THRESHOLD = 30000; Basically we don't support scalars in kernel-doc notation... -- ~Randy
