kernel/include/trace/events/random.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM random
   3
   4 #if !defined(_TRACE_RANDOM_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_RANDOM_H
   6
   7 #include <linux/writeback.h>
   8 #include <linux/tracepoint.h>
   9
  10 TRACE_EVENT(add_device_randomness,
  11         TP_PROTO(int bytes, unsigned long IP),
  12
  13         TP_ARGS(bytes, IP),
  14
  15         TP_STRUCT__entry(
  16                 __field(          int,  bytes                   )
  17                 __field(unsigned long,  IP                      )
  18         ),
  19
  20         TP_fast_assign(
  21                 __entry->bytes          = bytes;
  22                 __entry->IP             = IP;
  23         ),
  24
  25         TP_printk("bytes %d caller %pS",
  26                 __entry->bytes, (void *)__entry->IP)
  27 );
  28
  29 DECLARE_EVENT_CLASS(random__mix_pool_bytes,
  30         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  31
  32         TP_ARGS(pool_name, bytes, IP),
  33
  34         TP_STRUCT__entry(
  35                 __field( const char *,  pool_name               )
  36                 __field(          int,  bytes                   )
  37                 __field(unsigned long,  IP                      )
  38         ),
  39
  40         TP_fast_assign(
  41                 __entry->pool_name      = pool_name;
  42                 __entry->bytes          = bytes;
  43                 __entry->IP             = IP;
  44         ),
  45
  46         TP_printk("%s pool: bytes %d caller %pS",
  47                   __entry->pool_name, __entry->bytes, (void *)__entry->IP)
  48 );
  49
  50 DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes,
  51         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  52
  53         TP_ARGS(pool_name, bytes, IP)
  54 );
  55
  56 DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes_nolock,
  57         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  58
  59         TP_ARGS(pool_name, bytes, IP)
  60 );
  61
  62 TRACE_EVENT(credit_entropy_bits,
  63         TP_PROTO(const char *pool_name, int bits, int entropy_count,
  64                  int entropy_total, unsigned long IP),
  65
  66         TP_ARGS(pool_name, bits, entropy_count, entropy_total, IP),
  67
  68         TP_STRUCT__entry(
  69                 __field( const char *,  pool_name               )
  70                 __field(          int,  bits                    )
  71                 __field(          int,  entropy_count           )
  72                 __field(          int,  entropy_total           )
  73                 __field(unsigned long,  IP                      )
  74         ),
  75
  76         TP_fast_assign(
  77                 __entry->pool_name      = pool_name;
  78                 __entry->bits           = bits;
  79                 __entry->entropy_count  = entropy_count;
  80                 __entry->entropy_total  = entropy_total;
  81                 __entry->IP             = IP;
  82         ),
  83
  84         TP_printk("%s pool: bits %d entropy_count %d entropy_total %d "
  85                   "caller %pS", __entry->pool_name, __entry->bits,
  86                   __entry->entropy_count, __entry->entropy_total,
  87                   (void *)__entry->IP)
  88 );
  89
  90 TRACE_EVENT(push_to_pool,
  91         TP_PROTO(const char *pool_name, int pool_bits, int input_bits),
  92
  93         TP_ARGS(pool_name, pool_bits, input_bits),
  94
  95         TP_STRUCT__entry(
  96                 __field( const char *,  pool_name               )
  97                 __field(          int,  pool_bits               )
  98                 __field(          int,  input_bits              )
  99         ),
 100
 101         TP_fast_assign(
 102                 __entry->pool_name      = pool_name;
 103                 __entry->pool_bits      = pool_bits;
 104                 __entry->input_bits     = input_bits;
 105         ),
 106
 107         TP_printk("%s: pool_bits %d input_pool_bits %d",
 108                   __entry->pool_name, __entry->pool_bits,
 109                   __entry->input_bits)
 110 );
 111
 112 TRACE_EVENT(debit_entropy,
 113         TP_PROTO(const char *pool_name, int debit_bits),
 114
 115         TP_ARGS(pool_name, debit_bits),
 116
 117         TP_STRUCT__entry(
 118                 __field( const char *,  pool_name               )
 119                 __field(          int,  debit_bits              )
 120         ),
 121
 122         TP_fast_assign(
 123                 __entry->pool_name      = pool_name;
 124                 __entry->debit_bits     = debit_bits;
 125         ),
 126
 127         TP_printk("%s: debit_bits %d", __entry->pool_name,
 128                   __entry->debit_bits)
 129 );
 130
 131 TRACE_EVENT(add_input_randomness,
 132         TP_PROTO(int input_bits),
 133
 134         TP_ARGS(input_bits),
 135
 136         TP_STRUCT__entry(
 137                 __field(          int,  input_bits              )
 138         ),
 139
 140         TP_fast_assign(
 141                 __entry->input_bits     = input_bits;
 142         ),
 143
 144         TP_printk("input_pool_bits %d", __entry->input_bits)
 145 );
 146
 147 TRACE_EVENT(add_disk_randomness,
 148         TP_PROTO(dev_t dev, int input_bits),
 149
 150         TP_ARGS(dev, input_bits),
 151
 152         TP_STRUCT__entry(
 153                 __field(        dev_t,  dev                     )
 154                 __field(          int,  input_bits              )
 155         ),
 156
 157         TP_fast_assign(
 158                 __entry->dev            = dev;
 159                 __entry->input_bits     = input_bits;
 160         ),
 161
 162         TP_printk("dev %d,%d input_pool_bits %d", MAJOR(__entry->dev),
 163                   MINOR(__entry->dev), __entry->input_bits)
 164 );
 165
 166 TRACE_EVENT(xfer_secondary_pool,
 167         TP_PROTO(const char *pool_name, int xfer_bits, int request_bits,
 168                  int pool_entropy, int input_entropy),
 169
 170         TP_ARGS(pool_name, xfer_bits, request_bits, pool_entropy,
 171                 input_entropy),
 172
 173         TP_STRUCT__entry(
 174                 __field( const char *,  pool_name               )
 175                 __field(          int,  xfer_bits               )
 176                 __field(          int,  request_bits            )
 177                 __field(          int,  pool_entropy            )
 178                 __field(          int,  input_entropy           )
 179         ),
 180
 181         TP_fast_assign(
 182                 __entry->pool_name      = pool_name;
 183                 __entry->xfer_bits      = xfer_bits;
 184                 __entry->request_bits   = request_bits;
 185                 __entry->pool_entropy   = pool_entropy;
 186                 __entry->input_entropy  = input_entropy;
 187         ),
 188
 189         TP_printk("pool %s xfer_bits %d request_bits %d pool_entropy %d "
 190                   "input_entropy %d", __entry->pool_name, __entry->xfer_bits,
 191                   __entry->request_bits, __entry->pool_entropy,
 192                   __entry->input_entropy)
 193 );
 194
 195 DECLARE_EVENT_CLASS(random__get_random_bytes,
 196         TP_PROTO(int nbytes, unsigned long IP),
 197
 198         TP_ARGS(nbytes, IP),
 199
 200         TP_STRUCT__entry(
 201                 __field(          int,  nbytes                  )
 202                 __field(unsigned long,  IP                      )
 203         ),
 204
 205         TP_fast_assign(
 206                 __entry->nbytes         = nbytes;
 207                 __entry->IP             = IP;
 208         ),
 209
 210         TP_printk("nbytes %d caller %pS", __entry->nbytes, (void *)__entry->IP)
 211 );
 212
 213 DEFINE_EVENT(random__get_random_bytes, get_random_bytes,
 214         TP_PROTO(int nbytes, unsigned long IP),
 215
 216         TP_ARGS(nbytes, IP)
 217 );
 218
 219 DEFINE_EVENT(random__get_random_bytes, get_random_bytes_arch,
 220         TP_PROTO(int nbytes, unsigned long IP),
 221
 222         TP_ARGS(nbytes, IP)
 223 );
 224
 225 DECLARE_EVENT_CLASS(random__extract_entropy,
 226         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 227                  unsigned long IP),
 228
 229         TP_ARGS(pool_name, nbytes, entropy_count, IP),
 230
 231         TP_STRUCT__entry(
 232                 __field( const char *,  pool_name               )
 233                 __field(          int,  nbytes                  )
 234                 __field(          int,  entropy_count           )
 235                 __field(unsigned long,  IP                      )
 236         ),
 237
 238         TP_fast_assign(
 239                 __entry->pool_name      = pool_name;
 240                 __entry->nbytes         = nbytes;
 241                 __entry->entropy_count  = entropy_count;
 242                 __entry->IP             = IP;
 243         ),
 244
 245         TP_printk("%s pool: nbytes %d entropy_count %d caller %pS",
 246                   __entry->pool_name, __entry->nbytes, __entry->entropy_count,
 247                   (void *)__entry->IP)
 248 );
 249
 250
 251 DEFINE_EVENT(random__extract_entropy, extract_entropy,
 252         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 253                  unsigned long IP),
 254
 255         TP_ARGS(pool_name, nbytes, entropy_count, IP)
 256 );
 257
 258 DEFINE_EVENT(random__extract_entropy, extract_entropy_user,
 259         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 260                  unsigned long IP),
 261
 262         TP_ARGS(pool_name, nbytes, entropy_count, IP)
 263 );
 264
 265 TRACE_EVENT(random_read,
 266         TP_PROTO(int got_bits, int need_bits, int pool_left, int input_left),
 267
 268         TP_ARGS(got_bits, need_bits, pool_left, input_left),
 269
 270         TP_STRUCT__entry(
 271                 __field(          int,  got_bits                )
 272                 __field(          int,  need_bits               )
 273                 __field(          int,  pool_left               )
 274                 __field(          int,  input_left              )
 275         ),
 276
 277         TP_fast_assign(
 278                 __entry->got_bits       = got_bits;
 279                 __entry->need_bits      = need_bits;
 280                 __entry->pool_left      = pool_left;
 281                 __entry->input_left     = input_left;
 282         ),
 283
 284         TP_printk("got_bits %d still_needed_bits %d "
 285                   "blocking_pool_entropy_left %d input_entropy_left %d",
 286                   __entry->got_bits, __entry->got_bits, __entry->pool_left,
 287                   __entry->input_left)
 288 );
 289
 290 TRACE_EVENT(urandom_read,
 291         TP_PROTO(int got_bits, int pool_left, int input_left),
 292
 293         TP_ARGS(got_bits, pool_left, input_left),
 294
 295         TP_STRUCT__entry(
 296                 __field(          int,  got_bits                )
 297                 __field(          int,  pool_left               )
 298                 __field(          int,  input_left              )
 299         ),
 300
 301         TP_fast_assign(
 302                 __entry->got_bits       = got_bits;
 303                 __entry->pool_left      = pool_left;
 304                 __entry->input_left     = input_left;
 305         ),
 306
 307         TP_printk("got_bits %d nonblocking_pool_entropy_left %d "
 308                   "input_entropy_left %d", __entry->got_bits,
 309                   __entry->pool_left, __entry->input_left)
 310 );
 311
 312 #endif /* _TRACE_RANDOM_H */
 313
 314 /* This part must be outside protection */
 315 #include <trace/define_trace.h>