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
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/config.h>
#include <cstddef>
#include <limits>
#include "system.h"
#include <osl/security.h>
#include <osl/diagnose.h>
#include <rtl/bootstrap.h>
#include <sal/log.hxx>
#include "osl/thread.h"
#include "osl/file.h"
#if defined LINUX || defined SOLARIS
#include <crypt.h>
#endif
#include "secimpl.h"
#ifdef ANDROID
#define getpwuid_r(uid, pwd, buf, buflen, result) (*(result) = getpwuid(uid), (*(result) ? (memcpy (buf, *(result), sizeof (struct passwd)), 0) : errno))
#endif
static oslSecurityError SAL_CALL
osl_psz_loginUser(const sal_Char* pszUserName, const sal_Char* pszPasswd,
oslSecurity* pSecurity);
extern "C" sal_Bool SAL_CALL osl_psz_getUserIdent(oslSecurity Security, sal_Char *pszIdent, sal_uInt32 nMax);
static bool SAL_CALL osl_psz_getUserName(oslSecurity Security, sal_Char* pszName, sal_uInt32 nMax);
static bool SAL_CALL osl_psz_getHomeDir(oslSecurity Security, sal_Char* pszDirectory, sal_uInt32 nMax);
static bool SAL_CALL osl_psz_getConfigDir(oslSecurity Security, sal_Char* pszDirectory, sal_uInt32 nMax);
static bool sysconf_SC_GETPW_R_SIZE_MAX(std::size_t * value) {
#if defined _SC_GETPW_R_SIZE_MAX
long m;
errno = 0;
m = sysconf(_SC_GETPW_R_SIZE_MAX);
if (m == -1) {
/* _SC_GETPW_R_SIZE_MAX has no limit; some platforms like certain
FreeBSD versions support sysconf(_SC_GETPW_R_SIZE_MAX) in a broken
way and always set EINVAL, so be resilient here: */
return false;
} else {
OSL_ASSERT(
m >= 0
&& (unsigned long) m < std::numeric_limits<std::size_t>::max());
*value = (std::size_t) m;
return true;
}
#else
/* some platforms like Mac OS X 1.3 do not define _SC_GETPW_R_SIZE_MAX: */
return false;
#endif
}
static oslSecurityImpl * growSecurityImpl(
oslSecurityImpl * impl, std::size_t * bufSize)
{
std::size_t n = 0;
oslSecurityImpl * p = NULL;
if (impl == NULL) {
if (!sysconf_SC_GETPW_R_SIZE_MAX(&n)) {
/* choose something sensible (the callers of growSecurityImpl will
detect it if the allocated buffer is too small: */
n = 1024;
}
} else if (*bufSize <= std::numeric_limits<std::size_t>::max() / 2) {
n = 2 * *bufSize;
}
if (n != 0) {
if (n <= std::numeric_limits<std::size_t>::max()
- offsetof(oslSecurityImpl, m_buffer))
{
*bufSize = n;
n += offsetof(oslSecurityImpl, m_buffer);
} else {
*bufSize = std::numeric_limits<std::size_t>::max()
- offsetof(oslSecurityImpl, m_buffer);
n = std::numeric_limits<std::size_t>::max();
}
p = static_cast<oslSecurityImpl *>(realloc(impl, n));
memset (p, 0, n);
}
if (p == NULL) {
free(impl);
}
return p;
}
static void deleteSecurityImpl(oslSecurityImpl * impl) {
free(impl);
}
oslSecurity SAL_CALL osl_getCurrentSecurity()
{
std::size_t n = 0;
oslSecurityImpl * p = NULL;
for (;;) {
struct passwd * found;
p = growSecurityImpl(p, &n);
if (p == NULL) {
return NULL;
}
switch (getpwuid_r(getuid(), &p->m_pPasswd, p->m_buffer, n, &found)) {
case ERANGE:
break;
case 0:
if (found != NULL) {
return p;
}
/* fall through */
default:
deleteSecurityImpl(p);
return NULL;
}
}
}
oslSecurityError SAL_CALL osl_loginUser(
rtl_uString *ustrUserName,
rtl_uString *ustrPassword,
oslSecurity *pSecurity
)
{
oslSecurityError Error;
rtl_String* strUserName=0;
rtl_String* strPassword=0;
sal_Char* pszUserName=0;
sal_Char* pszPassword=0;
if ( ustrUserName != 0 )
{
rtl_uString2String( &strUserName,
rtl_uString_getStr(ustrUserName),
rtl_uString_getLength(ustrUserName),
RTL_TEXTENCODING_UTF8,
OUSTRING_TO_OSTRING_CVTFLAGS );
pszUserName = rtl_string_getStr(strUserName);
}
if ( ustrPassword != 0 )
{
rtl_uString2String( &strPassword,
rtl_uString_getStr(ustrPassword),
rtl_uString_getLength(ustrPassword),
RTL_TEXTENCODING_UTF8,
OUSTRING_TO_OSTRING_CVTFLAGS );
pszPassword = rtl_string_getStr(strPassword);
}
Error=osl_psz_loginUser(pszUserName,pszPassword,pSecurity);
if ( strUserName != 0 )
{
rtl_string_release(strUserName);
}
if ( strPassword)
{
rtl_string_release(strPassword);
}
return Error;
}
static oslSecurityError SAL_CALL
osl_psz_loginUser(const sal_Char* pszUserName, const sal_Char* pszPasswd,
oslSecurity* pSecurity)
{
(void)pszUserName;
(void)pszPasswd;
(void)pSecurity;
return osl_Security_E_None;
}
oslSecurityError SAL_CALL osl_loginUserOnFileServer(
rtl_uString *strUserName,
rtl_uString *strPasswd,
rtl_uString *strFileServer,
oslSecurity *pSecurity
)
{
(void) strUserName; /* unused */
(void) strPasswd; /* unused */
(void) strFileServer; /* unused */
(void) pSecurity; /* unused */
return osl_Security_E_UserUnknown;
}
sal_Bool SAL_CALL osl_getUserIdent(oslSecurity Security, rtl_uString **ustrIdent)
{
bool bRet = false;
sal_Char pszIdent[1024];
pszIdent[0] = '\0';
bRet = osl_psz_getUserIdent(Security,pszIdent,sizeof(pszIdent));
rtl_string2UString( ustrIdent, pszIdent, rtl_str_getLength( pszIdent ), osl_getThreadTextEncoding(), OUSTRING_TO_OSTRING_CVTFLAGS );
OSL_ASSERT(*ustrIdent != NULL);
return bRet;
}
sal_Bool SAL_CALL osl_psz_getUserIdent(oslSecurity Security, sal_Char *pszIdent, sal_uInt32 nMax)
{
sal_Char buffer[32];
sal_Int32 nChr;
oslSecurityImpl *pSecImpl = (oslSecurityImpl *)Security;
if (pSecImpl == NULL)
return sal_False;
nChr = snprintf(buffer, sizeof(buffer), "%u", pSecImpl->m_pPasswd.pw_uid);
if ( nChr < 0 || sal::static_int_cast<sal_uInt32>(nChr) >= sizeof(buffer)
|| sal::static_int_cast<sal_uInt32>(nChr) >= nMax )
return sal_False; /* leave *pszIdent unmodified in case of failure */
memcpy(pszIdent, buffer, nChr+1);
return sal_True;
}
sal_Bool SAL_CALL osl_getUserName(oslSecurity Security, rtl_uString **ustrName)
{
bool bRet = false;
sal_Char pszName[1024];
pszName[0] = '\0';
bRet = osl_psz_getUserName(Security,pszName,sizeof(pszName));
rtl_string2UString( ustrName, pszName, rtl_str_getLength( pszName ), osl_getThreadTextEncoding(), OUSTRING_TO_OSTRING_CVTFLAGS );
OSL_ASSERT(*ustrName != NULL);
return bRet;
}
static bool SAL_CALL osl_psz_getUserName(oslSecurity Security, sal_Char* pszName, sal_uInt32 nMax)
{
oslSecurityImpl *pSecImpl = (oslSecurityImpl *)Security;
if (pSecImpl == NULL || pSecImpl->m_pPasswd.pw_name == NULL)
return false;
strncpy(pszName, pSecImpl->m_pPasswd.pw_name, nMax);
return true;
}
sal_Bool SAL_CALL osl_getHomeDir(oslSecurity Security, rtl_uString **pustrDirectory)
{
bool bRet = false;
sal_Char pszDirectory[PATH_MAX];
pszDirectory[0] = '\0';
bRet = osl_psz_getHomeDir(Security,pszDirectory,sizeof(pszDirectory));
if ( bRet )
{
rtl_string2UString( pustrDirectory, pszDirectory, rtl_str_getLength( pszDirectory ), osl_getThreadTextEncoding(), OUSTRING_TO_OSTRING_CVTFLAGS );
OSL_ASSERT(*pustrDirectory != NULL);
osl_getFileURLFromSystemPath( *pustrDirectory, pustrDirectory );
}
return bRet;
}
static bool SAL_CALL osl_psz_getHomeDir(oslSecurity Security, sal_Char* pszDirectory, sal_uInt32 nMax)
{
oslSecurityImpl *pSecImpl = (oslSecurityImpl *)Security;
if (pSecImpl == NULL)
return false;
#ifdef ANDROID
{
sal_Bool bRet = sal_False;
rtl_uString *pName = 0, *pValue = 0;
rtl_uString_newFromAscii(&pName, "HOME");
if (rtl_bootstrap_get(pName, &pValue, NULL))
{
rtl_String *pStrValue = 0;
if (pValue && pValue->length > 0)
{
rtl_uString2String(&pStrValue, pValue->buffer,
pValue->length, RTL_TEXTENCODING_UTF8,
OUSTRING_TO_OSTRING_CVTFLAGS);
if (pStrValue && pStrValue->length > 0)
{
sal_Int32 nCopy = (sal_Int32)(nMax-1) < pStrValue->length ? (sal_Int32)(nMax-1) : pStrValue->length ;
strncpy (pszDirectory, pStrValue->buffer, nCopy);
pszDirectory[nCopy] = '\0';
bRet = (std::size_t)pStrValue->length < nMax;
}
rtl_string_release(pStrValue);
}
rtl_uString_release(pName);
}
if (bRet)
return bRet;
}
#endif
/* if current user, check also environment for HOME */
if (getuid() == pSecImpl->m_pPasswd.pw_uid)
{
sal_Char *pStr = NULL;
#ifdef SOLARIS
char buffer[8192];
struct passwd pwd;
struct passwd *ppwd;
#ifdef _POSIX_PTHREAD_SEMANTICS
if ( 0 != getpwuid_r(getuid(), &pwd, buffer, sizeof(buffer), &ppwd ) )
ppwd = NULL;
#else
ppwd = getpwuid_r(getuid(), &pwd, buffer, sizeof(buffer) );
#endif
if ( ppwd )
pStr = ppwd->pw_dir;
#else
pStr = getenv("HOME");
#endif
if (pStr != NULL && strlen(pStr) > 0 && access(pStr, 0) == 0)
strncpy(pszDirectory, pStr, nMax);
else if (pSecImpl->m_pPasswd.pw_dir != NULL)
strncpy(pszDirectory, pSecImpl->m_pPasswd.pw_dir, nMax);
else
return false;
}
else if (pSecImpl->m_pPasswd.pw_dir != NULL)
strncpy(pszDirectory, pSecImpl->m_pPasswd.pw_dir, nMax);
else
return false;
return true;
}
sal_Bool SAL_CALL osl_getConfigDir(oslSecurity Security, rtl_uString **pustrDirectory)
{
bool bRet = false;
sal_Char pszDirectory[PATH_MAX];
pszDirectory[0] = '\0';
bRet = osl_psz_getConfigDir(Security,pszDirectory,sizeof(pszDirectory));
if ( bRet )
{
rtl_string2UString( pustrDirectory, pszDirectory, rtl_str_getLength( pszDirectory ), osl_getThreadTextEncoding(), OUSTRING_TO_OSTRING_CVTFLAGS );
OSL_ASSERT(*pustrDirectory != NULL);
osl_getFileURLFromSystemPath( *pustrDirectory, pustrDirectory );
}
return bRet;
}
#if !defined(MACOSX) && !defined(IOS)
#define DOT_CONFIG "/.config"
static bool SAL_CALL osl_psz_getConfigDir(oslSecurity Security, sal_Char* pszDirectory, sal_uInt32 nMax)
{
sal_Char *pStr = getenv("XDG_CONFIG_HOME");
if (pStr == NULL || strlen(pStr) == 0 || access(pStr, 0) != 0)
{
std::size_t n = 0;
// a default equal to $HOME/.config should be used.
if (!osl_psz_getHomeDir(Security, pszDirectory, nMax))
return false;
n = strlen(pszDirectory);
if (n + sizeof(DOT_CONFIG) < nMax)
{
strncpy(pszDirectory+n, DOT_CONFIG, sizeof(DOT_CONFIG));
// try to create dir if not present
bool dirOK = true;
if (mkdir(pszDirectory, S_IRWXU) != 0)
{
int e = errno;
if (e != EEXIST)
{
SAL_WARN(
"sal.osl",
"mkdir(" << pszDirectory << "): errno=" << e);
dirOK = false;
}
}
if (dirOK)
{
// check file type and permissions
struct stat st;
if (stat(pszDirectory, &st) != 0)
{
OSL_TRACE("Could not stat $HOME/.config");
dirOK = false;
}
else
{
if (!S_ISDIR(st.st_mode))
{
OSL_TRACE("$HOME/.config is not a directory");
dirOK = false;
}
if (!(st.st_mode & S_IRUSR && st.st_mode & S_IWUSR && st.st_mode & S_IXUSR))
{
OSL_TRACE("$HOME/.config has bad permissions");
dirOK = false;
}
}
}
// resort to HOME
if (!dirOK)
pszDirectory[n] = '\0';
}
}
else
strncpy(pszDirectory, pStr, nMax);
return true;
}
#undef DOT_CONFIG
#else
/*
* FIXME: rewrite to use more flexible
* NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES)
* as soon as we can bumb the baseline to Tiger (for NSApplicationSupportDirectory) and have
* support for Objective-C in the build environment
*/
#define MACOSX_CONFIG_DIR "/Library/Application Support" /* Used on iOS, too */
static bool SAL_CALL osl_psz_getConfigDir(oslSecurity Security, sal_Char* pszDirectory, sal_uInt32 nMax)
{
if( osl_psz_getHomeDir(Security, pszDirectory, nMax - sizeof(MACOSX_CONFIG_DIR) + 1) )
{
strcat( pszDirectory, MACOSX_CONFIG_DIR );
return true;
}
return false;
}
#endif
sal_Bool SAL_CALL osl_isAdministrator(oslSecurity Security)
{
oslSecurityImpl *pSecImpl = (oslSecurityImpl *)Security;
if (pSecImpl == NULL)
return sal_False;
if (pSecImpl->m_pPasswd.pw_uid != 0)
return sal_False;
return sal_True;
}
void SAL_CALL osl_freeSecurityHandle(oslSecurity Security)
{
deleteSecurityImpl(static_cast<oslSecurityImpl *>(Security));
}
sal_Bool SAL_CALL osl_loadUserProfile(oslSecurity Security)
{
(void) Security; /* unused */
return sal_False;
}
void SAL_CALL osl_unloadUserProfile(oslSecurity Security)
{
(void) Security; /* unused */
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|