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1 /* crypto/rand/rand_os2.c */ | 1 /* crypto/rand/rand_os2.c */ |
2 /* ==================================================================== | 2 /* ==================================================================== |
3 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. | 3 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * | 8 * |
9 * 1. Redistributions of source code must retain the above copyright | 9 * 1. Redistributions of source code must retain the above copyright |
10 * notice, this list of conditions and the following disclaimer. | 10 * notice, this list of conditions and the following disclaimer. |
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71 ULONG ulTimeLow; /* Low 32 bits of time stamp */ | 71 ULONG ulTimeLow; /* Low 32 bits of time stamp */ |
72 ULONG ulTimeHigh; /* High 32 bits of time stamp */ | 72 ULONG ulTimeHigh; /* High 32 bits of time stamp */ |
73 ULONG ulIdleLow; /* Low 32 bits of idle time */ | 73 ULONG ulIdleLow; /* Low 32 bits of idle time */ |
74 ULONG ulIdleHigh; /* High 32 bits of idle time */ | 74 ULONG ulIdleHigh; /* High 32 bits of idle time */ |
75 ULONG ulBusyLow; /* Low 32 bits of busy time */ | 75 ULONG ulBusyLow; /* Low 32 bits of busy time */ |
76 ULONG ulBusyHigh; /* High 32 bits of busy time */ | 76 ULONG ulBusyHigh; /* High 32 bits of busy time */ |
77 ULONG ulIntrLow; /* Low 32 bits of interrupt time */ | 77 ULONG ulIntrLow; /* Low 32 bits of interrupt time */ |
78 ULONG ulIntrHigh; /* High 32 bits of interrupt time */ | 78 ULONG ulIntrHigh; /* High 32 bits of interrupt time */ |
79 } CPUUTIL; | 79 } CPUUTIL; |
80 | 80 |
| 81 #ifndef __KLIBC__ |
81 APIRET APIENTRY(*DosPerfSysCall) (ULONG ulCommand, ULONG ulParm1, ULONG ulParm2,
ULONG ulParm3) = NULL; | 82 APIRET APIENTRY(*DosPerfSysCall) (ULONG ulCommand, ULONG ulParm1, ULONG ulParm2,
ULONG ulParm3) = NULL; |
82 APIRET APIENTRY(*DosQuerySysState) (ULONG func, ULONG arg1, ULONG pid, ULONG _re
s_, PVOID buf, ULONG bufsz) = NULL; | 83 APIRET APIENTRY(*DosQuerySysState) (ULONG func, ULONG arg1, ULONG pid, ULONG _re
s_, PVOID buf, ULONG bufsz) = NULL; |
| 84 #endif |
83 HMODULE hDoscalls = 0; | 85 HMODULE hDoscalls = 0; |
84 | 86 |
85 int RAND_poll(void) | 87 int RAND_poll(void) |
86 { | 88 { |
87 char failed_module[20]; | 89 char failed_module[20]; |
88 QWORD qwTime; | 90 QWORD qwTime; |
89 ULONG SysVars[QSV_FOREGROUND_PROCESS]; | 91 ULONG SysVars[QSV_FOREGROUND_PROCESS]; |
90 | 92 |
91 if (hDoscalls == 0) { | 93 if (hDoscalls == 0) { |
92 ULONG rc = DosLoadModule(failed_module, sizeof(failed_module), "DOSCALLS
", &hDoscalls); | 94 ULONG rc = DosLoadModule(failed_module, sizeof(failed_module), "DOSCALLS
", &hDoscalls); |
93 | 95 |
| 96 #ifndef __KLIBC__ |
94 if (rc == 0) { | 97 if (rc == 0) { |
95 rc = DosQueryProcAddr(hDoscalls, 976, NULL, (PFN *)&DosPerfSysCall); | 98 rc = DosQueryProcAddr(hDoscalls, 976, NULL, (PFN *)&DosPerfSysCall); |
96 | 99 |
97 if (rc) | 100 if (rc) |
98 DosPerfSysCall = NULL; | 101 DosPerfSysCall = NULL; |
99 | 102 |
100 rc = DosQueryProcAddr(hDoscalls, 368, NULL, (PFN *)&DosQuerySysState
); | 103 rc = DosQueryProcAddr(hDoscalls, 368, NULL, (PFN *)&DosQuerySysState
); |
101 | 104 |
102 if (rc) | 105 if (rc) |
103 DosQuerySysState = NULL; | 106 DosQuerySysState = NULL; |
104 } | 107 } |
| 108 #endif |
105 } | 109 } |
106 | 110 |
107 /* Sample the hi-res timer, runs at around 1.1 MHz */ | 111 /* Sample the hi-res timer, runs at around 1.1 MHz */ |
108 DosTmrQueryTime(&qwTime); | 112 DosTmrQueryTime(&qwTime); |
109 RAND_add(&qwTime, sizeof(qwTime), 2); | 113 RAND_add(&qwTime, sizeof(qwTime), 2); |
110 | 114 |
111 /* Sample a bunch of system variables, includes various process & memory sta
tistics */ | 115 /* Sample a bunch of system variables, includes various process & memory sta
tistics */ |
112 DosQuerySysInfo(1, QSV_FOREGROUND_PROCESS, SysVars, sizeof(SysVars)); | 116 DosQuerySysInfo(1, QSV_FOREGROUND_PROCESS, SysVars, sizeof(SysVars)); |
113 RAND_add(SysVars, sizeof(SysVars), 4); | 117 RAND_add(SysVars, sizeof(SysVars), 4); |
114 | 118 |
115 /* If available, sample CPU registers that count at CPU MHz | 119 /* If available, sample CPU registers that count at CPU MHz |
116 * Only fairly new CPUs (PPro & K6 onwards) & OS/2 versions support this | 120 * Only fairly new CPUs (PPro & K6 onwards) & OS/2 versions support this |
117 */ | 121 */ |
118 if (DosPerfSysCall) { | 122 if (DosPerfSysCall) { |
119 CPUUTIL util; | 123 CPUUTIL util; |
120 | 124 |
121 if (DosPerfSysCall(CMD_KI_RDCNT, (ULONG)&util, 0, 0) == 0) { | 125 if (DosPerfSysCall(CMD_KI_RDCNT, (ULONG)&util, 0, 0) == 0) { |
122 RAND_add(&util, sizeof(util), 10); | 126 RAND_add(&util, sizeof(util), 10); |
123 } | 127 } |
124 else { | 128 else { |
| 129 #ifndef __KLIBC__ |
125 DosPerfSysCall = NULL; | 130 DosPerfSysCall = NULL; |
| 131 #endif |
126 } | 132 } |
127 } | 133 } |
128 | 134 |
129 /* DosQuerySysState() gives us a huge quantity of process, thread, memory &
handle stats */ | 135 /* DosQuerySysState() gives us a huge quantity of process, thread, memory &
handle stats */ |
130 if (DosQuerySysState) { | 136 if (DosQuerySysState) { |
131 char *buffer = OPENSSL_malloc(256 * 1024); | 137 char *buffer = OPENSSL_malloc(256 * 1024); |
132 | 138 |
133 if (DosQuerySysState(0x1F, 0, 0, 0, buffer, 256 * 1024) == 0) { | 139 if (DosQuerySysState(0x1F, 0, 0, 0, buffer, 256 * 1024) == 0) { |
134 /* First 4 bytes in buffer is a pointer to the thread count | 140 /* First 4 bytes in buffer is a pointer to the thread count |
135 * there should be at least 1 byte of entropy per thread | 141 * there should be at least 1 byte of entropy per thread |
136 */ | 142 */ |
137 RAND_add(buffer, 256 * 1024, **(ULONG **)buffer); | 143 RAND_add(buffer, 256 * 1024, **(ULONG **)buffer); |
138 } | 144 } |
139 | 145 |
140 OPENSSL_free(buffer); | 146 OPENSSL_free(buffer); |
141 return 1; | 147 return 1; |
142 } | 148 } |
143 | 149 |
144 return 0; | 150 return 0; |
145 } | 151 } |
146 | 152 |
147 #endif /* OPENSSL_SYS_OS2 */ | 153 #endif /* OPENSSL_SYS_OS2 */ |
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