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