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- Downgrade compat/getentropy_solaris.c to version 1.4 from OpenBSD.

Browse Source 
The dl_iterate_phdr() function introduced in newer versions raises
  compilation errors on solaris 10.
This commit is contained in:
George Thessalonikefs 2020-01-07 15:06:14 +02:00
parent 453c84b237
commit d68ece28c4
2 changed files with 39 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
compat/getentropy_solaris.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: getentropy_solaris.c,v 1.13 2018/11/20 08:04:28 deraadt Exp $ */
/* $OpenBSD: getentropy_solaris.c,v 1.4 2014/07/12 20:41:47 wouter Exp $ */
/*
* Copyright (c) 2014 Theo de Raadt <deraadt@openbsd.org>
@ -15,12 +15,8 @@
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Emulation of getentropy(2) as documented at:
* http://man.openbsd.org/getentropy.2
*/
#include "config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/ioctl.h>
@ -33,11 +29,8 @@
#include <sys/stat.h>
#include <sys/time.h>
#include <stdlib.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#include <stdio.h>
#include <link.h>
#include <termios.h>
#include <fcntl.h>
#include <signal.h>
@ -45,14 +38,10 @@
#include <errno.h>
#include <unistd.h>
#include <time.h>
#ifdef HAVE_SYS_SHA2_H
#include <sys/sha2.h>
#define SHA512_Init SHA512Init
#define SHA512_Update SHA512Update
#define SHA512_Final SHA512Final
#else
#include "openssl/sha.h"
#endif
#include <sys/vfs.h>
#include <sys/statfs.h>
@ -71,14 +60,15 @@
#define HR(x, l) (SHA512_Update(&ctx, (char *)(x), (l)))
#define HD(x) (SHA512_Update(&ctx, (char *)&(x), sizeof (x)))
#define HF(x) (SHA512_Update(&ctx, (char *)&(x), sizeof (void*)))
#define HF(x) (SHA512_Update(&ctx, (char *)&(x), sizeof (void*)))
int getentropy(void *buf, size_t len);
extern int main(int, char *argv[]);
static int gotdata(char *buf, size_t len);
static int getentropy_urandom(void *buf, size_t len, const char *path,
int devfscheck);
static int getentropy_fallback(void *buf, size_t len);
static int getentropy_phdr(struct dl_phdr_info *info, size_t size, void *data);
int
getentropy(void *buf, size_t len)
@ -87,7 +77,7 @@ getentropy(void *buf, size_t len)
if (len > 256) {
errno = EIO;
return (-1);
return -1;
}
/*
@ -154,6 +144,22 @@ getentropy(void *buf, size_t len)
return (ret);
}
/*
* Basic sanity checking; wish we could do better.
*/
static int
gotdata(char *buf, size_t len)
{
char any_set = 0;
size_t i;
for (i = 0; i < len; ++i)
any_set |= buf[i];
if (any_set == 0)
return -1;
return 0;
}
static int
getentropy_urandom(void *buf, size_t len, const char *path, int devfscheck)
{
@ -200,11 +206,13 @@ start:
i += ret;
}
close(fd);
errno = save_errno;
return (0); /* satisfied */
if (gotdata(buf, len) == 0) {
errno = save_errno;
return 0; /* satisfied */
}
nodevrandom:
errno = EIO;
return (-1);
return -1;
}
static const int cl[] = {
@ -232,15 +240,6 @@ static const int cl[] = {
#endif
};
static int
getentropy_phdr(struct dl_phdr_info *info, size_t size, void *data)
{
SHA512_CTX *ctx = data;
SHA512_Update(ctx, &info->dlpi_addr, sizeof (info->dlpi_addr));
return (0);
}
static int
getentropy_fallback(void *buf, size_t len)
{
@ -278,8 +277,6 @@ getentropy_fallback(void *buf, size_t len)
cnt += (int)tv.tv_usec;
}
dl_iterate_phdr(getentropy_phdr, &ctx);
for (ii = 0; ii < sizeof(cl)/sizeof(cl[0]); ii++)
HX(clock_gettime(cl[ii], &ts) == -1, ts);
@ -300,6 +297,7 @@ getentropy_fallback(void *buf, size_t len)
HX(sigprocmask(SIG_BLOCK, NULL, &sigset) == -1,
sigset);
HF(main); /* an addr in program */
HF(getentropy); /* an addr in this library */
HF(printf); /* an addr in libc */
p = (char *)&p;
@ -422,8 +420,11 @@ getentropy_fallback(void *buf, size_t len)
memcpy((char *)buf + i, results, min(sizeof(results), len - i));
i += min(sizeof(results), len - i);
}
explicit_bzero(&ctx, sizeof ctx);
explicit_bzero(results, sizeof results);
errno = save_errno;
return (0); /* satisfied */
memset(results, 0, sizeof results);
if (gotdata(buf, len) == 0) {
errno = save_errno;
return 0; /* satisfied */
}
errno = EIO;
return -1;
}

5
doc/Changelog
View File

@ -1,3 +1,8 @@
6 January 2020: George
- Downgrade compat/getentropy_solaris.c to version 1.4 from OpenBSD.
The dl_iterate_phdr() function introduced in newer versions raises
compilation errors on solaris 10.
6 January 2020: Wouter
- Merge #135 from Florian Obser: Use passed in neg and key cache
if non-NULL.