summaryrefslogtreecommitdiff
path: root/sal/osl/unx/util.c
blob: 66746fd3ff44717dd891ebb96de5cfd02f0732ea (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
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
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: util.c,v $
 * $Revision: 1.13 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/


#include <unistd.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>

#ifdef SOLARIS
#include <sys/sockio.h>
#endif

#include "osl/util.h"



/*****************************************************************************/
/* Static Module Functions */
/*****************************************************************************/

static int   osl_getHWAddr(const char *ifname, char* hard_addr);
static int   osl_checkAddr(const char* addr);


/*****************************************************************************/
/* osl_getEthernetAddress */
/*****************************************************************************/

sal_Bool SAL_CALL osl_getEthernetAddress( sal_uInt8 * pAddr )
{
    char buff[1024];
    char hard_addr[64];
    struct ifconf ifc;
    struct ifreq *ifr;
    int i;
    int so;

#ifdef SOLARIS
    /** algorithm doesn't work on solaris */
    return sal_False;
#else

    if ( pAddr == 0 )
    {
        return sal_False;
    }


    /*
     * All we need is ... a network file descriptor.
     * Normally, this is a very socket.
     */

    so = socket(AF_INET, SOCK_DGRAM, 0);


    /*
     * The first thing we have to do, get the interface configuration.
     * It is a list of attached/configured interfaces
     */

    ifc.ifc_len = sizeof(buff);
    ifc.ifc_buf = buff;
    if ( ioctl(so, SIOCGIFCONF, &ifc) < 0 )
    {
/*      fprintf(stderr, "SIOCGIFCONF: %s\n", strerror(errno));*/
        close(so);
        return sal_False;
    }

    close(so);

    /*
     *  For each of the interfaces in the interface list,
     *  try to get the hardware address
     */

    ifr = ifc.ifc_req;
    for ( i = ifc.ifc_len / sizeof(struct ifreq) ; --i >= 0 ; ifr++ )
    {
        int nRet=0;
        nRet = osl_getHWAddr(ifr->ifr_name,hard_addr);
        if ( nRet  > 0 )
        {
            memcpy( pAddr , hard_addr, 6 );
            return sal_True;
        }
    }

    return sal_False;
#endif
}


/*****************************************************************************/
/* osl_getHWAddr */
/*****************************************************************************/

static int osl_getHWAddr(const char *ifname, char* hard_addr)
{
    int ret=0;
    struct ifreq ifr;
    int so = socket(AF_INET, SOCK_DGRAM, 0);

    strcpy(ifr.ifr_name, ifname);

    /*
     *   First, get the Interface-FLAGS
     */

    ret=ioctl(so, SIOCGIFFLAGS, &ifr) ;

    if ( ret < 0 )
    {
/*      fprintf(stderr, "SIOCGIFFLAGS: %s\n", strerror(errno)); */
        close(so);
        return ret;
    }


    /*
     *  If it is the loopback device, do not consider it any further
     */

    if (ifr.ifr_flags & IFF_LOOPBACK)
    {
/*      fprintf(stderr, "SIOCGIFFLAGS : is LOOPBACK : %s\n", strerror(errno));*/
        close(so);
        return 0;
    }


    /*
     *  And now, the real thing: the get address
     */

#ifdef LINUX
    ret=ioctl(so, SIOCGIFHWADDR, &ifr);
#else
    ret=ioctl(so, SIOCGIFADDR, &ifr);
#endif

    if (ret < 0) {
/*      fprintf(stderr, "SIOCGIFADDR: %s\n", strerror(errno));*/
        memset(hard_addr, 0, 32);
        close(so);
        return ret;
    }

    close(so);

#ifdef LINUX
    memcpy(hard_addr,ifr.ifr_hwaddr.sa_data,8);
#else
    memcpy(hard_addr,ifr.ifr_ifru.ifru_addr.sa_data,8);
#endif


    /*
     *  Check, if no real, i.e. 00:00:00:00:00:00, address was retrieved.
     *  The Linux dummy device has this kind of behaviour
     */

    ret=osl_checkAddr(hard_addr);

    if (ret < 0) {
/*      fprintf(stderr, "SIOCGIFADDR got '00:00:00:00:00:00'\n"); */
        return ret;
    }

/*  fprintf(stderr,"interface : %s -- ",ifname);*/
/*  fprintf(stderr,"HWaddr : %s\n", print_ether(hard_addr));*/

    return 1;
}


/*****************************************************************************/
/* osl_checkAddr */
/*****************************************************************************/

static int osl_checkAddr(const char* addr)
{
    if (addr[0]==0 && addr[1]==0 &&
        addr[2]==0 && addr[3]==0 &&
        addr[4]==0 && addr[5]==0)
    {
        return -1;
    }
    return 0;
}


#if defined (SPARC)

#if defined (SOLARIS) && !defined(__sparcv8plus) && !defined(__sparcv9)
#include <sys/types.h>
#include <sys/processor.h>

/*****************************************************************************/
/* osl_InitSparcV9 */
/*****************************************************************************/

void osl_InterlockedCountSetV9(sal_Bool bV9);

/*
 * osl_InitSparcV9() should be executed as early as possible. We place it in the
 * .init section of sal
 */
#if defined ( __SUNPRO_C ) || defined ( __SUNPRO_CC )
void osl_InitSparcV9(void);
#pragma init (osl_InitSparcV9)
#elif defined ( __GNUC__ )
void osl_InitSparcV9(void)  __attribute__((constructor));
#endif

void osl_InitSparcV9(void)
{
    /* processor_info() identifies SPARCV8 (ie sun4c machines) simply as "sparc"
     * and SPARCV9 (ie ultra sparcs, sun4u) as "sparcv9". Since we know that we
     * run at least on a SPARCV8 architecture or better, any processor type != "sparc"
     * and != "i386" is considered to be SPARCV9 or better
     *
     * This way we are certain that this will still work if someone names SPARCV10
     * "foobar"
     */
    processor_info_t aInfo;
    int rc;

    rc = processor_info(0, &aInfo);

    if ( rc != -1 ) {
        if ( !strcmp( "sparc", aInfo.pi_processor_type )    /* SPARCV8 */
            || !strcmp( "i386", aInfo.pi_processor_type ) ) /* can't happen, but ... */
            return;
        /* we are reasonably certain to be on sparcv9/sparcv8plus or better */
        osl_InterlockedCountSetV9(sal_True);
    }
}

#endif /* SOLARIS */

#if defined(NETBSD) && defined(GCC) && !defined(__sparcv9) && !defined(__sparc_v9__)

#include <sys/param.h>
#include <sys/sysctl.h>
void osl_InitSparcV9(void)  __attribute__((constructor));
void osl_InterlockedCountSetV9(sal_Bool bV9);

/* Determine which processor we are running on (sparc v8 or v9)
 * The approach is very similar to Solaris.
 */

void osl_InitSparcV9(void)
{
    int mib[2]={CTL_HW,HW_MACHINE};
    char processorname[256];
    size_t len=256;

    /* get the machine name */
    sysctl(mib, 2, processorname, &len, NULL, 0);
    if (!strncmp("sparc64",processorname, len)) {
        osl_InterlockedCountSetV9(sal_True);
    }
}

#endif /* NETBSD */

#endif /* SPARC */

#if defined ( LINUX ) && defined ( SPARC )
#include <sys/utsname.h>
void osl_InitSparcV9(void)  __attribute__((constructor));
void osl_InterlockedCountSetV9(sal_Bool bV9);
/* Determine which processor we are running on (sparc v8 or v9)
 * The approach is very similar to Solaris.
 */
void osl_InitSparcV9(void)
{
    struct utsname name;
    int rc;
    rc = uname(&name);
    if ( rc != -1 ) {
        if ( !strcmp( "sparc", name.machine ))
        return;
    osl_InterlockedCountSetV9(sal_True);
    }
}
#endif

#if    ( defined(__GNUC__) && (defined(X86) || defined(X86_64)) )\
    || ( defined(SOLARIS) && defined (__SUNPRO_C) && defined(__i386) )

/* Safe default */
int osl_isSingleCPU = 0;

/* Determine if we are on a multiprocessor/multicore/HT x86/x64 system
 *
 * The lock prefix for atomic operations in osl_[inc|de]crementInterlockedCount()
 * comes with a cost and is especially expensive on pre HT x86 single processor
 * systems, where it isn't needed at all.
 *
 * This should be run as early as possible, thus it's placed in the init section
 */
#if defined(_SC_NPROCESSORS_CONF) /* i.e. MACOSX for Intel doesn't have this */
#if defined(__GNUC__)
void osl_interlockedCountCheckForSingleCPU(void)  __attribute__((constructor));
#elif defined(__SUNPRO_C)
void osl_interlockedCountCheckForSingleCPU(void);
#pragma init (osl_interlockedCountCheckForSingleCPU)
#endif

void osl_interlockedCountCheckForSingleCPU(void)
{
    /* In case sysconfig fails be on the safe side,
     * consider it a multiprocessor/multicore/HT system */
    if ( sysconf(_SC_NPROCESSORS_CONF) == 1 ) {
        osl_isSingleCPU = 1;
    }
}
#endif /* defined(_SC_NPROCESSORS_CONF) */
#endif