random.h

Go to the documentation of this file.

#undef TRACE_SYSTEM
#define TRACE_SYSTEM random

#if !defined(_TRACE_RANDOM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_RANDOM_H

#include <linux/writeback.h>
#include <linux/tracepoint.h>

DECLARE_EVENT_CLASS(random__mix_pool_bytes,
    TP_PROTO(const char *pool_name, int bytes, unsigned long IP),

    TP_ARGS(pool_name, bytes, IP),

    TP_STRUCT__entry(
        __field( const char *,  pool_name       )
        __field(      int,  bytes           )
        __field(unsigned long,  IP          )
    ),

    TP_fast_assign(
        __entry->pool_name  = pool_name;
        __entry->bytes      = bytes;
        __entry->IP     = IP;
    ),

    TP_printk("%s pool: bytes %d caller %pF",
          __entry->pool_name, __entry->bytes, (void *)__entry->IP)
);

DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes,
    TP_PROTO(const char *pool_name, int bytes, unsigned long IP),

    TP_ARGS(pool_name, bytes, IP)
);

DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes_nolock,
    TP_PROTO(const char *pool_name, int bytes, unsigned long IP),

    TP_ARGS(pool_name, bytes, IP)
);

TRACE_EVENT(credit_entropy_bits,
    TP_PROTO(const char *pool_name, int bits, int entropy_count,
         int entropy_total, unsigned long IP),

    TP_ARGS(pool_name, bits, entropy_count, entropy_total, IP),

    TP_STRUCT__entry(
        __field( const char *,  pool_name       )
        __field(      int,  bits            )
        __field(      int,  entropy_count       )
        __field(      int,  entropy_total       )
        __field(unsigned long,  IP          )
    ),

    TP_fast_assign(
        __entry->pool_name  = pool_name;
        __entry->bits       = bits;
        __entry->entropy_count  = entropy_count;
        __entry->entropy_total  = entropy_total;
        __entry->IP     = IP;
    ),

    TP_printk("%s pool: bits %d entropy_count %d entropy_total %d "
          "caller %pF", __entry->pool_name, __entry->bits,
          __entry->entropy_count, __entry->entropy_total,
          (void *)__entry->IP)
);

TRACE_EVENT(get_random_bytes,
    TP_PROTO(int nbytes, unsigned long IP),

    TP_ARGS(nbytes, IP),

    TP_STRUCT__entry(
        __field(      int,  nbytes          )
        __field(unsigned long,  IP          )
    ),

    TP_fast_assign(
        __entry->nbytes     = nbytes;
        __entry->IP     = IP;
    ),

    TP_printk("nbytes %d caller %pF", __entry->nbytes, (void *)__entry->IP)
);

DECLARE_EVENT_CLASS(random__extract_entropy,
    TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
         unsigned long IP),

    TP_ARGS(pool_name, nbytes, entropy_count, IP),

    TP_STRUCT__entry(
        __field( const char *,  pool_name       )
        __field(      int,  nbytes          )
        __field(      int,  entropy_count       )
        __field(unsigned long,  IP          )
    ),

    TP_fast_assign(
        __entry->pool_name  = pool_name;
        __entry->nbytes     = nbytes;
        __entry->entropy_count  = entropy_count;
        __entry->IP     = IP;
    ),

    TP_printk("%s pool: nbytes %d entropy_count %d caller %pF",
          __entry->pool_name, __entry->nbytes, __entry->entropy_count,
          (void *)__entry->IP)
);


DEFINE_EVENT(random__extract_entropy, extract_entropy,
    TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
         unsigned long IP),

    TP_ARGS(pool_name, nbytes, entropy_count, IP)
);

DEFINE_EVENT(random__extract_entropy, extract_entropy_user,
    TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
         unsigned long IP),

    TP_ARGS(pool_name, nbytes, entropy_count, IP)
);



#endif /* _TRACE_RANDOM_H */

/* This part must be outside protection */
#include <trace/define_trace.h>