include/trace/events/random.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM random
   4
   5 #if !defined(_TRACE_RANDOM_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_RANDOM_H
   7
   8 #include <linux/writeback.h>
   9 #include <linux/tracepoint.h>
  10
  11 TRACE_EVENT(add_device_randomness,
  12         TP_PROTO(int bytes, unsigned long IP),
  13
  14         TP_ARGS(bytes, IP),
  15
  16         TP_STRUCT__entry(
  17                 __field(          int,  bytes                   )
  18                 __field(unsigned long,  IP                      )
  19         ),
  20
  21         TP_fast_assign(
  22                 __entry->bytes          = bytes;
  23                 __entry->IP             = IP;
  24         ),
  25
  26         TP_printk("bytes %d caller %pS",
  27                 __entry->bytes, (void *)__entry->IP)
  28 );
  29
  30 DECLARE_EVENT_CLASS(random__mix_pool_bytes,
  31         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  32
  33         TP_ARGS(pool_name, bytes, IP),
  34
  35         TP_STRUCT__entry(
  36                 __field( const char *,  pool_name               )
  37                 __field(          int,  bytes                   )
  38                 __field(unsigned long,  IP                      )
  39         ),
  40
  41         TP_fast_assign(
  42                 __entry->pool_name      = pool_name;
  43                 __entry->bytes          = bytes;
  44                 __entry->IP             = IP;
  45         ),
  46
  47         TP_printk("%s pool: bytes %d caller %pS",
  48                   __entry->pool_name, __entry->bytes, (void *)__entry->IP)
  49 );
  50
  51 DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes,
  52         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  53
  54         TP_ARGS(pool_name, bytes, IP)
  55 );
  56
  57 DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes_nolock,
  58         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  59
  60         TP_ARGS(pool_name, bytes, IP)
  61 );
  62
  63 TRACE_EVENT(credit_entropy_bits,
  64         TP_PROTO(const char *pool_name, int bits, int entropy_count,
  65                  unsigned long IP),
  66
  67         TP_ARGS(pool_name, bits, entropy_count, IP),
  68
  69         TP_STRUCT__entry(
  70                 __field( const char *,  pool_name               )
  71                 __field(          int,  bits                    )
  72                 __field(          int,  entropy_count           )
  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->IP             = IP;
  81         ),
  82
  83         TP_printk("%s pool: bits %d entropy_count %d caller %pS",
  84                   __entry->pool_name, __entry->bits,
  85                   __entry->entropy_count, (void *)__entry->IP)
  86 );
  87
  88 TRACE_EVENT(push_to_pool,
  89         TP_PROTO(const char *pool_name, int pool_bits, int input_bits),
  90
  91         TP_ARGS(pool_name, pool_bits, input_bits),
  92
  93         TP_STRUCT__entry(
  94                 __field( const char *,  pool_name               )
  95                 __field(          int,  pool_bits               )
  96                 __field(          int,  input_bits              )
  97         ),
  98
  99         TP_fast_assign(
 100                 __entry->pool_name      = pool_name;
 101                 __entry->pool_bits      = pool_bits;
 102                 __entry->input_bits     = input_bits;
 103         ),
 104
 105         TP_printk("%s: pool_bits %d input_pool_bits %d",
 106                   __entry->pool_name, __entry->pool_bits,
 107                   __entry->input_bits)
 108 );
 109
 110 TRACE_EVENT(debit_entropy,
 111         TP_PROTO(const char *pool_name, int debit_bits),
 112
 113         TP_ARGS(pool_name, debit_bits),
 114
 115         TP_STRUCT__entry(
 116                 __field( const char *,  pool_name               )
 117                 __field(          int,  debit_bits              )
 118         ),
 119
 120         TP_fast_assign(
 121                 __entry->pool_name      = pool_name;
 122                 __entry->debit_bits     = debit_bits;
 123         ),
 124
 125         TP_printk("%s: debit_bits %d", __entry->pool_name,
 126                   __entry->debit_bits)
 127 );
 128
 129 TRACE_EVENT(add_input_randomness,
 130         TP_PROTO(int input_bits),
 131
 132         TP_ARGS(input_bits),
 133
 134         TP_STRUCT__entry(
 135                 __field(          int,  input_bits              )
 136         ),
 137
 138         TP_fast_assign(
 139                 __entry->input_bits     = input_bits;
 140         ),
 141
 142         TP_printk("input_pool_bits %d", __entry->input_bits)
 143 );
 144
 145 TRACE_EVENT(add_disk_randomness,
 146         TP_PROTO(dev_t dev, int input_bits),
 147
 148         TP_ARGS(dev, input_bits),
 149
 150         TP_STRUCT__entry(
 151                 __field(        dev_t,  dev                     )
 152                 __field(          int,  input_bits              )
 153         ),
 154
 155         TP_fast_assign(
 156                 __entry->dev            = dev;
 157                 __entry->input_bits     = input_bits;
 158         ),
 159
 160         TP_printk("dev %d,%d input_pool_bits %d", MAJOR(__entry->dev),
 161                   MINOR(__entry->dev), __entry->input_bits)
 162 );
 163
 164 TRACE_EVENT(xfer_secondary_pool,
 165         TP_PROTO(const char *pool_name, int xfer_bits, int request_bits,
 166                  int pool_entropy, int input_entropy),
 167
 168         TP_ARGS(pool_name, xfer_bits, request_bits, pool_entropy,
 169                 input_entropy),
 170
 171         TP_STRUCT__entry(
 172                 __field( const char *,  pool_name               )
 173                 __field(          int,  xfer_bits               )
 174                 __field(          int,  request_bits            )
 175                 __field(          int,  pool_entropy            )
 176                 __field(          int,  input_entropy           )
 177         ),
 178
 179         TP_fast_assign(
 180                 __entry->pool_name      = pool_name;
 181                 __entry->xfer_bits      = xfer_bits;
 182                 __entry->request_bits   = request_bits;
 183                 __entry->pool_entropy   = pool_entropy;
 184                 __entry->input_entropy  = input_entropy;
 185         ),
 186
 187         TP_printk("pool %s xfer_bits %d request_bits %d pool_entropy %d "
 188                   "input_entropy %d", __entry->pool_name, __entry->xfer_bits,
 189                   __entry->request_bits, __entry->pool_entropy,
 190                   __entry->input_entropy)
 191 );
 192
 193 DECLARE_EVENT_CLASS(random__get_random_bytes,
 194         TP_PROTO(int nbytes, unsigned long IP),
 195
 196         TP_ARGS(nbytes, IP),
 197
 198         TP_STRUCT__entry(
 199                 __field(          int,  nbytes                  )
 200                 __field(unsigned long,  IP                      )
 201         ),
 202
 203         TP_fast_assign(
 204                 __entry->nbytes         = nbytes;
 205                 __entry->IP             = IP;
 206         ),
 207
 208         TP_printk("nbytes %d caller %pS", __entry->nbytes, (void *)__entry->IP)
 209 );
 210
 211 DEFINE_EVENT(random__get_random_bytes, get_random_bytes,
 212         TP_PROTO(int nbytes, unsigned long IP),
 213
 214         TP_ARGS(nbytes, IP)
 215 );
 216
 217 DEFINE_EVENT(random__get_random_bytes, get_random_bytes_arch,
 218         TP_PROTO(int nbytes, unsigned long IP),
 219
 220         TP_ARGS(nbytes, IP)
 221 );
 222
 223 DECLARE_EVENT_CLASS(random__extract_entropy,
 224         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 225                  unsigned long IP),
 226
 227         TP_ARGS(pool_name, nbytes, entropy_count, IP),
 228
 229         TP_STRUCT__entry(
 230                 __field( const char *,  pool_name               )
 231                 __field(          int,  nbytes                  )
 232                 __field(          int,  entropy_count           )
 233                 __field(unsigned long,  IP                      )
 234         ),
 235
 236         TP_fast_assign(
 237                 __entry->pool_name      = pool_name;
 238                 __entry->nbytes         = nbytes;
 239                 __entry->entropy_count  = entropy_count;
 240                 __entry->IP             = IP;
 241         ),
 242
 243         TP_printk("%s pool: nbytes %d entropy_count %d caller %pS",
 244                   __entry->pool_name, __entry->nbytes, __entry->entropy_count,
 245                   (void *)__entry->IP)
 246 );
 247
 248
 249 DEFINE_EVENT(random__extract_entropy, extract_entropy,
 250         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 251                  unsigned long IP),
 252
 253         TP_ARGS(pool_name, nbytes, entropy_count, IP)
 254 );
 255
 256 DEFINE_EVENT(random__extract_entropy, extract_entropy_user,
 257         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 258                  unsigned long IP),
 259
 260         TP_ARGS(pool_name, nbytes, entropy_count, IP)
 261 );
 262
 263 TRACE_EVENT(random_read,
 264         TP_PROTO(int got_bits, int need_bits, int pool_left, int input_left),
 265
 266         TP_ARGS(got_bits, need_bits, pool_left, input_left),
 267
 268         TP_STRUCT__entry(
 269                 __field(          int,  got_bits                )
 270                 __field(          int,  need_bits               )
 271                 __field(          int,  pool_left               )
 272                 __field(          int,  input_left              )
 273         ),
 274
 275         TP_fast_assign(
 276                 __entry->got_bits       = got_bits;
 277                 __entry->need_bits      = need_bits;
 278                 __entry->pool_left      = pool_left;
 279                 __entry->input_left     = input_left;
 280         ),
 281
 282         TP_printk("got_bits %d still_needed_bits %d "
 283                   "blocking_pool_entropy_left %d input_entropy_left %d",
 284                   __entry->got_bits, __entry->got_bits, __entry->pool_left,
 285                   __entry->input_left)
 286 );
 287
 288 TRACE_EVENT(urandom_read,
 289         TP_PROTO(int got_bits, int pool_left, int input_left),
 290
 291         TP_ARGS(got_bits, pool_left, input_left),
 292
 293         TP_STRUCT__entry(
 294                 __field(          int,  got_bits                )
 295                 __field(          int,  pool_left               )
 296                 __field(          int,  input_left              )
 297         ),
 298
 299         TP_fast_assign(
 300                 __entry->got_bits       = got_bits;
 301                 __entry->pool_left      = pool_left;
 302                 __entry->input_left     = input_left;
 303         ),
 304
 305         TP_printk("got_bits %d nonblocking_pool_entropy_left %d "
 306                   "input_entropy_left %d", __entry->got_bits,
 307                   __entry->pool_left, __entry->input_left)
 308 );
 309
 310 #endif /* _TRACE_RANDOM_H */
 311
 312 /* This part must be outside protection */
 313 #include <trace/define_trace.h>