summaryrefslogtreecommitdiffstats
path: root/include/trace/events/random.h
blob: 3d7b432ca5f311cfb16d30bb9ebb82875ebe3f20 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
/* SPDX-License-Identifier: GPL-2.0 */
#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>

TRACE_EVENT(add_device_randomness,
	TP_PROTO(int bytes, unsigned long IP),

	TP_ARGS(bytes, IP),

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

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

	TP_printk("bytes %d caller %pS",
		__entry->bytes, (void *)__entry->IP)
);

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 %pS",
		  __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,
		 unsigned long IP),

	TP_ARGS(pool_name, bits, entropy_count, IP),

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

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

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

TRACE_EVENT(debit_entropy,
	TP_PROTO(const char *pool_name, int debit_bits),

	TP_ARGS(pool_name, debit_bits),

	TP_STRUCT__entry(
		__field( const char *,	pool_name		)
		__field(	  int,	debit_bits		)
	),

	TP_fast_assign(
		__entry->pool_name	= pool_name;
		__entry->debit_bits	= debit_bits;
	),

	TP_printk("%s: debit_bits %d", __entry->pool_name,
		  __entry->debit_bits)
);

TRACE_EVENT(add_input_randomness,
	TP_PROTO(int input_bits),

	TP_ARGS(input_bits),

	TP_STRUCT__entry(
		__field(	  int,	input_bits		)
	),

	TP_fast_assign(
		__entry->input_bits	= input_bits;
	),

	TP_printk("input_pool_bits %d", __entry->input_bits)
);

TRACE_EVENT(add_disk_randomness,
	TP_PROTO(dev_t dev, int input_bits),

	TP_ARGS(dev, input_bits),

	TP_STRUCT__entry(
		__field(	dev_t,	dev			)
		__field(	  int,	input_bits		)
	),

	TP_fast_assign(
		__entry->dev		= dev;
		__entry->input_bits	= input_bits;
	),

	TP_printk("dev %d,%d input_pool_bits %d", MAJOR(__entry->dev),
		  MINOR(__entry->dev), __entry->input_bits)
);

DECLARE_EVENT_CLASS(random__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 %pS", __entry->nbytes, (void *)__entry->IP)
);

DEFINE_EVENT(random__get_random_bytes, get_random_bytes,
	TP_PROTO(int nbytes, unsigned long IP),

	TP_ARGS(nbytes, IP)
);

DEFINE_EVENT(random__get_random_bytes, get_random_bytes_arch,
	TP_PROTO(int nbytes, unsigned long IP),

	TP_ARGS(nbytes, 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 %pS",
		  __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)
);

TRACE_EVENT(urandom_read,
	TP_PROTO(int got_bits, int pool_left, int input_left),

	TP_ARGS(got_bits, pool_left, input_left),

	TP_STRUCT__entry(
		__field(	  int,	got_bits		)
		__field(	  int,	pool_left		)
		__field(	  int,	input_left		)
	),

	TP_fast_assign(
		__entry->got_bits	= got_bits;
		__entry->pool_left	= pool_left;
		__entry->input_left	= input_left;
	),

	TP_printk("got_bits %d nonblocking_pool_entropy_left %d "
		  "input_entropy_left %d", __entry->got_bits,
		  __entry->pool_left, __entry->input_left)
);

TRACE_EVENT(prandom_u32,

	TP_PROTO(unsigned int ret),

	TP_ARGS(ret),

	TP_STRUCT__entry(
		__field(   unsigned int, ret)
	),

	TP_fast_assign(
		__entry->ret = ret;
	),

	TP_printk("ret=%u" , __entry->ret)
);

#endif /* _TRACE_RANDOM_H */

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