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804405e7 | 1 | /*++ |
2 | ||
ccd55824 | 3 | Copyright (c) 2004 - 2009, Intel Corporation |
4 | Portions copyright (c) 2008-2009 Apple Inc. All rights reserved. | |
804405e7 | 5 | All rights reserved. This program and the accompanying materials |
6 | are licensed and made available under the terms and conditions of the BSD License | |
7 | which accompanies this distribution. The full text of the license may be found at | |
8 | http://opensource.org/licenses/bsd-license.php | |
9 | ||
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | ||
13 | Module Name: | |
14 | ||
15 | UnixThunk.c | |
16 | ||
17 | Abstract: | |
18 | ||
19 | Since the SEC is the only program in our emulation we | |
20 | must use a Tiano mechanism to export APIs to other modules. | |
21 | This is the role of the EFI_UNIX_THUNK_PROTOCOL. | |
22 | ||
23 | The mUnixThunkTable exists so that a change to EFI_UNIX_THUNK_PROTOCOL | |
24 | will cause an error in initializing the array if all the member functions | |
25 | are not added. It looks like adding a element to end and not initializing | |
26 | it may cause the table to be initaliized with the members at the end being | |
27 | set to zero. This is bad as jumping to zero will crash. | |
28 | ||
29 | ||
30 | gUnix is a a public exported global that contains the initialized | |
31 | data. | |
32 | ||
33 | --*/ | |
34 | ||
35 | #include "SecMain.h" | |
b67f2798 | 36 | #include "Uefi.h" |
804405e7 | 37 | #include "Library/UnixLib.h" |
38 | ||
7ee3b613 A |
39 | #ifdef __APPLE__ |
40 | #include "Gasket.h" | |
41 | #endif | |
42 | ||
7492c63d | 43 | int settimer_initialized; |
44 | struct timeval settimer_timeval; | |
45 | void (*settimer_callback)(UINT64 delta); | |
804405e7 | 46 | |
7492c63d | 47 | void |
804405e7 | 48 | settimer_handler (int sig) |
49 | { | |
50 | struct timeval timeval; | |
51 | UINT64 delta; | |
52 | ||
53 | gettimeofday (&timeval, NULL); | |
54 | delta = ((UINT64)timeval.tv_sec * 1000) + (timeval.tv_usec / 1000) | |
55 | - ((UINT64)settimer_timeval.tv_sec * 1000) | |
56 | - (settimer_timeval.tv_usec / 1000); | |
57 | settimer_timeval = timeval; | |
58 | if (settimer_callback) | |
59 | (*settimer_callback)(delta); | |
60 | } | |
61 | ||
804405e7 | 62 | VOID |
63 | SetTimer (UINT64 PeriodMs, VOID (*CallBack)(UINT64 DeltaMs)) | |
64 | { | |
65 | struct itimerval timerval; | |
73aa7f04 | 66 | UINT32 remainder; |
804405e7 | 67 | |
68 | if (!settimer_initialized) { | |
69 | struct sigaction act; | |
70 | ||
71 | settimer_initialized = 1; | |
72 | act.sa_handler = settimer_handler; | |
73 | act.sa_flags = 0; | |
74 | sigemptyset (&act.sa_mask); | |
75 | if (sigaction (SIGALRM, &act, NULL) != 0) { | |
76 | printf ("SetTimer: sigaction error %s\n", strerror (errno)); | |
77 | } | |
78 | if (gettimeofday (&settimer_timeval, NULL) != 0) { | |
79 | printf ("SetTimer: gettimeofday error %s\n", strerror (errno)); | |
80 | } | |
81 | } | |
73aa7f04 | 82 | timerval.it_value.tv_sec = DivU64x32(PeriodMs, 1000); |
83 | DivU64x32Remainder(PeriodMs, 1000, &remainder); | |
84 | timerval.it_value.tv_usec = remainder * 1000; | |
85 | timerval.it_value.tv_sec = DivU64x32(PeriodMs, 1000); | |
804405e7 | 86 | timerval.it_interval = timerval.it_value; |
87 | ||
88 | if (setitimer (ITIMER_REAL, &timerval, NULL) != 0) { | |
89 | printf ("SetTimer: setitimer error %s\n", strerror (errno)); | |
90 | } | |
91 | settimer_callback = CallBack; | |
92 | } | |
93 | ||
94 | void | |
95 | msSleep (unsigned long Milliseconds) | |
96 | { | |
97 | struct timespec ts; | |
98 | ||
99 | ts.tv_sec = Milliseconds / 1000; | |
100 | ts.tv_nsec = (Milliseconds % 1000) * 1000000; | |
101 | ||
102 | while (nanosleep (&ts, &ts) != 0 && errno == EINTR) | |
103 | ; | |
104 | } | |
105 | ||
106 | void | |
107 | GetLocalTime (EFI_TIME *Time) | |
108 | { | |
109 | struct tm *tm; | |
110 | time_t t; | |
111 | ||
112 | t = time (NULL); | |
113 | tm = localtime (&t); | |
114 | ||
115 | Time->Year = 1900 + tm->tm_year; | |
be5d189f | 116 | Time->Month = tm->tm_mon + 1; |
804405e7 | 117 | Time->Day = tm->tm_mday; |
118 | Time->Hour = tm->tm_hour; | |
119 | Time->Minute = tm->tm_min; | |
120 | Time->Second = tm->tm_sec; | |
121 | Time->Nanosecond = 0; | |
122 | Time->TimeZone = timezone; | |
123 | Time->Daylight = (daylight ? EFI_TIME_ADJUST_DAYLIGHT : 0) | |
124 | | (tm->tm_isdst > 0 ? EFI_TIME_IN_DAYLIGHT : 0); | |
125 | } | |
126 | ||
7492c63d | 127 | void |
804405e7 | 128 | TzSet (void) |
129 | { | |
7492c63d | 130 | STATIC int done = 0; |
804405e7 | 131 | if (!done) { |
132 | tzset (); | |
133 | done = 1; | |
134 | } | |
135 | } | |
136 | ||
137 | long | |
138 | GetTimeZone(void) | |
139 | { | |
140 | TzSet (); | |
141 | return timezone; | |
142 | } | |
143 | ||
144 | int | |
145 | GetDayLight(void) | |
146 | { | |
147 | TzSet (); | |
148 | return daylight; | |
149 | } | |
150 | ||
151 | int | |
152 | GetErrno(void) | |
153 | { | |
154 | return errno; | |
155 | } | |
156 | ||
ccd55824 | 157 | |
804405e7 | 158 | extern EFI_STATUS |
159 | UgaCreate(struct _EFI_UNIX_UGA_IO_PROTOCOL **UgaIo, CONST CHAR16 *Title); | |
160 | ||
161 | EFI_UNIX_THUNK_PROTOCOL mUnixThunkTable = { | |
162 | EFI_UNIX_THUNK_PROTOCOL_SIGNATURE, | |
ccd55824 | 163 | #ifdef __APPLE__ |
164 | // | |
165 | // Mac OS X requires the stack to be 16-byte aligned for IA-32. So on an OS X build | |
166 | // we add an assembly wrapper that makes sure the stack ges aligned. | |
167 | // This has the nice benfit of being able to run EFI ABI code, like the EFI shell | |
168 | // that is checked in to source control in the OS X version of the emulator | |
169 | // | |
170 | GasketmsSleep, /* Sleep */ | |
171 | Gasketexit, /* Exit */ | |
172 | GasketSetTimer, | |
173 | GasketGetLocalTime, | |
174 | Gasketgmtime, | |
175 | GasketGetTimeZone, | |
176 | GasketGetDayLight, | |
177 | (UnixPoll)Gasketpoll, | |
178 | (UnixRead)Gasketread, | |
179 | (UnixWrite)Gasketwrite, | |
180 | Gasketgetenv, | |
181 | (UnixOpen)Gasketopen, | |
182 | (UnixSeek)Gasketlseek, | |
183 | (UnixFtruncate)Gasketftruncate, | |
184 | Gasketclose, | |
185 | Gasketmkdir, | |
186 | Gasketrmdir, | |
187 | Gasketunlink, | |
188 | GasketGetErrno, | |
189 | Gasketopendir, | |
190 | (UnixRewindDir)Gasketrewinddir, | |
191 | Gasketreaddir, | |
192 | Gasketclosedir, | |
193 | Gasketstat, | |
194 | Gasketstatfs, | |
195 | Gasketrename, | |
196 | Gasketmktime, | |
197 | Gasketfsync, | |
198 | Gasketchmod, | |
199 | Gasketutime, | |
200 | Gaskettcflush, | |
201 | GasketUgaCreate, | |
202 | Gasketperror, | |
203 | Gasketioctl, | |
204 | Gasketfcntl, | |
205 | Gasketcfsetispeed, | |
206 | Gasketcfsetospeed, | |
207 | Gaskettcgetattr, | |
208 | Gaskettcsetattr, | |
209 | ||
210 | dlopen, // Update me with a gasket | |
211 | dlerror, // Update me with a gasket | |
212 | dlsym, // Update me with a gasket | |
213 | ||
214 | SecPeCoffGetEntryPoint, // Update me with a gasket | |
215 | SecPeCoffRelocateImageExtraAction, // Update me with a gasket | |
216 | SecPeCoffLoaderUnloadImageExtraAction // Update me with a gasket | |
217 | ||
218 | #else | |
804405e7 | 219 | msSleep, /* Sleep */ |
220 | exit, /* Exit */ | |
221 | SetTimer, | |
222 | GetLocalTime, | |
223 | gmtime, | |
224 | GetTimeZone, | |
225 | GetDayLight, | |
226 | (UnixPoll)poll, | |
227 | (UnixRead)read, | |
228 | (UnixWrite)write, | |
229 | getenv, | |
230 | (UnixOpen)open, | |
ccd55824 | 231 | (UnixSeek)lseek, |
232 | (UnixFtruncate)ftruncate, | |
804405e7 | 233 | close, |
234 | mkdir, | |
235 | rmdir, | |
236 | unlink, | |
237 | GetErrno, | |
238 | opendir, | |
239 | rewinddir, | |
240 | readdir, | |
241 | closedir, | |
7ee3b613 | 242 | (UnixStat)stat, |
804405e7 | 243 | statfs, |
244 | rename, | |
245 | mktime, | |
246 | fsync, | |
247 | chmod, | |
248 | utime, | |
249 | tcflush, | |
250 | UgaCreate, | |
251 | perror, | |
252 | ioctl, | |
253 | fcntl, | |
254 | cfsetispeed, | |
255 | cfsetospeed, | |
256 | tcgetattr, | |
398b646f | 257 | tcsetattr, |
258 | dlopen, | |
259 | dlerror, | |
ccd55824 | 260 | dlsym, |
261 | SecPeCoffGetEntryPoint, | |
262 | SecPeCoffRelocateImageExtraAction, | |
263 | SecPeCoffLoaderUnloadImageExtraAction | |
264 | #endif | |
804405e7 | 265 | }; |
266 | ||
267 | ||
268 | EFI_UNIX_THUNK_PROTOCOL *gUnix = &mUnixThunkTable; |