1
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
11TRACE_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
30DECLARE_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
51DEFINE_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
57DEFINE_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
63TRACE_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
88TRACE_EVENT(debit_entropy,
89 TP_PROTO(const char *pool_name, int debit_bits),
90
91 TP_ARGS(pool_name, debit_bits),
92
93 TP_STRUCT__entry(
94 __field( const char *, pool_name )
95 __field( int, debit_bits )
96 ),
97
98 TP_fast_assign(
99 __entry->pool_name = pool_name;
100 __entry->debit_bits = debit_bits;
101 ),
102
103 TP_printk("%s: debit_bits %d", __entry->pool_name,
104 __entry->debit_bits)
105);
106
107TRACE_EVENT(add_input_randomness,
108 TP_PROTO(int input_bits),
109
110 TP_ARGS(input_bits),
111
112 TP_STRUCT__entry(
113 __field( int, input_bits )
114 ),
115
116 TP_fast_assign(
117 __entry->input_bits = input_bits;
118 ),
119
120 TP_printk("input_pool_bits %d", __entry->input_bits)
121);
122
123TRACE_EVENT(add_disk_randomness,
124 TP_PROTO(dev_t dev, int input_bits),
125
126 TP_ARGS(dev, input_bits),
127
128 TP_STRUCT__entry(
129 __field( dev_t, dev )
130 __field( int, input_bits )
131 ),
132
133 TP_fast_assign(
134 __entry->dev = dev;
135 __entry->input_bits = input_bits;
136 ),
137
138 TP_printk("dev %d,%d input_pool_bits %d", MAJOR(__entry->dev),
139 MINOR(__entry->dev), __entry->input_bits)
140);
141
142DECLARE_EVENT_CLASS(random__get_random_bytes,
143 TP_PROTO(int nbytes, unsigned long IP),
144
145 TP_ARGS(nbytes, IP),
146
147 TP_STRUCT__entry(
148 __field( int, nbytes )
149 __field(unsigned long, IP )
150 ),
151
152 TP_fast_assign(
153 __entry->nbytes = nbytes;
154 __entry->IP = IP;
155 ),
156
157 TP_printk("nbytes %d caller %pS", __entry->nbytes, (void *)__entry->IP)
158);
159
160DEFINE_EVENT(random__get_random_bytes, get_random_bytes,
161 TP_PROTO(int nbytes, unsigned long IP),
162
163 TP_ARGS(nbytes, IP)
164);
165
166DEFINE_EVENT(random__get_random_bytes, get_random_bytes_arch,
167 TP_PROTO(int nbytes, unsigned long IP),
168
169 TP_ARGS(nbytes, IP)
170);
171
172DECLARE_EVENT_CLASS(random__extract_entropy,
173 TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
174 unsigned long IP),
175
176 TP_ARGS(pool_name, nbytes, entropy_count, IP),
177
178 TP_STRUCT__entry(
179 __field( const char *, pool_name )
180 __field( int, nbytes )
181 __field( int, entropy_count )
182 __field(unsigned long, IP )
183 ),
184
185 TP_fast_assign(
186 __entry->pool_name = pool_name;
187 __entry->nbytes = nbytes;
188 __entry->entropy_count = entropy_count;
189 __entry->IP = IP;
190 ),
191
192 TP_printk("%s pool: nbytes %d entropy_count %d caller %pS",
193 __entry->pool_name, __entry->nbytes, __entry->entropy_count,
194 (void *)__entry->IP)
195);
196
197
198DEFINE_EVENT(random__extract_entropy, extract_entropy,
199 TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
200 unsigned long IP),
201
202 TP_ARGS(pool_name, nbytes, entropy_count, IP)
203);
204
205TRACE_EVENT(urandom_read,
206 TP_PROTO(int got_bits, int pool_left, int input_left),
207
208 TP_ARGS(got_bits, pool_left, input_left),
209
210 TP_STRUCT__entry(
211 __field( int, got_bits )
212 __field( int, pool_left )
213 __field( int, input_left )
214 ),
215
216 TP_fast_assign(
217 __entry->got_bits = got_bits;
218 __entry->pool_left = pool_left;
219 __entry->input_left = input_left;
220 ),
221
222 TP_printk("got_bits %d nonblocking_pool_entropy_left %d "
223 "input_entropy_left %d", __entry->got_bits,
224 __entry->pool_left, __entry->input_left)
225);
226
227TRACE_EVENT(prandom_u32,
228
229 TP_PROTO(unsigned int ret),
230
231 TP_ARGS(ret),
232
233 TP_STRUCT__entry(
234 __field( unsigned int, ret)
235 ),
236
237 TP_fast_assign(
238 __entry->ret = ret;
239 ),
240
241 TP_printk("ret=%u" , __entry->ret)
242);
243
244#endif
245
246
247#include <trace/define_trace.h>
248
