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serenity/Ports/openssl/patches/RAND_poll.patch
MWGuy b6ccbd32eb Ports: Add openssl package
2019-11-15 10:30:00 +01:00

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diff --git a/crypto/rand/rand_unix.c b/crypto/rand/rand_unix.c
index 097e409..3611588 100644
--- a/crypto/rand/rand_unix.c
+++ b/crypto/rand/rand_unix.c
@@ -109,339 +109,10 @@
*
*/
#include <stdio.h>
+#include <stdlib.h>
-#define USE_SOCKETS
-#include "e_os.h"
-#include "cryptlib.h"
-#include <openssl/rand.h>
-#include "rand_lcl.h"
-
-#if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_NETWARE))
-
-# include <sys/types.h>
-# include <sys/time.h>
-# include <sys/times.h>
-# include <sys/stat.h>
-# include <fcntl.h>
-# include <unistd.h>
-# include <time.h>
-# if defined(OPENSSL_SYS_LINUX) /* should actually be available virtually
- * everywhere */
-# include <poll.h>
-# endif
-# include <limits.h>
-# ifndef FD_SETSIZE
-# define FD_SETSIZE (8*sizeof(fd_set))
-# endif
-
-# if defined(OPENSSL_SYS_VOS)
-
-/*
- * The following algorithm repeatedly samples the real-time clock (RTC) to
- * generate a sequence of unpredictable data. The algorithm relies upon the
- * uneven execution speed of the code (due to factors such as cache misses,
- * interrupts, bus activity, and scheduling) and upon the rather large
- * relative difference between the speed of the clock and the rate at which
- * it can be read.
- *
- * If this code is ported to an environment where execution speed is more
- * constant or where the RTC ticks at a much slower rate, or the clock can be
- * read with fewer instructions, it is likely that the results would be far
- * more predictable.
- *
- * As a precaution, we generate 4 times the minimum required amount of seed
- * data.
- */
-
-int RAND_poll(void)
-{
- short int code;
- gid_t curr_gid;
- pid_t curr_pid;
- uid_t curr_uid;
- int i, k;
- struct timespec ts;
- unsigned char v;
-
-# ifdef OPENSSL_SYS_VOS_HPPA
- long duration;
- extern void s$sleep(long *_duration, short int *_code);
-# else
-# ifdef OPENSSL_SYS_VOS_IA32
- long long duration;
- extern void s$sleep2(long long *_duration, short int *_code);
-# else
-# error "Unsupported Platform."
-# endif /* OPENSSL_SYS_VOS_IA32 */
-# endif /* OPENSSL_SYS_VOS_HPPA */
-
- /*
- * Seed with the gid, pid, and uid, to ensure *some* variation between
- * different processes.
- */
-
- curr_gid = getgid();
- RAND_add(&curr_gid, sizeof(curr_gid), 1);
- curr_gid = 0;
-
- curr_pid = getpid();
- RAND_add(&curr_pid, sizeof(curr_pid), 1);
- curr_pid = 0;
-
- curr_uid = getuid();
- RAND_add(&curr_uid, sizeof(curr_uid), 1);
- curr_uid = 0;
-
- for (i = 0; i < (ENTROPY_NEEDED * 4); i++) {
- /*
- * burn some cpu; hope for interrupts, cache collisions, bus
- * interference, etc.
- */
- for (k = 0; k < 99; k++)
- ts.tv_nsec = random();
-
-# ifdef OPENSSL_SYS_VOS_HPPA
- /* sleep for 1/1024 of a second (976 us). */
- duration = 1;
- s$sleep(&duration, &code);
-# else
-# ifdef OPENSSL_SYS_VOS_IA32
- /* sleep for 1/65536 of a second (15 us). */
- duration = 1;
- s$sleep2(&duration, &code);
-# endif /* OPENSSL_SYS_VOS_IA32 */
-# endif /* OPENSSL_SYS_VOS_HPPA */
-
- /* get wall clock time. */
- clock_gettime(CLOCK_REALTIME, &ts);
-
- /* take 8 bits */
- v = (unsigned char)(ts.tv_nsec % 256);
- RAND_add(&v, sizeof(v), 1);
- v = 0;
- }
- return 1;
-}
-# elif defined __OpenBSD__
int RAND_poll(void)
{
- u_int32_t rnd = 0, i;
- unsigned char buf[ENTROPY_NEEDED];
-
- for (i = 0; i < sizeof(buf); i++) {
- if (i % 4 == 0)
- rnd = arc4random();
- buf[i] = rnd;
- rnd >>= 8;
- }
- RAND_add(buf, sizeof(buf), ENTROPY_NEEDED);
- OPENSSL_cleanse(buf, sizeof(buf));
-
- return 1;
-}
-# else /* !defined(__OpenBSD__) */
-int RAND_poll(void)
-{
- unsigned long l;
- pid_t curr_pid = getpid();
-# if defined(DEVRANDOM) || defined(DEVRANDOM_EGD)
- unsigned char tmpbuf[ENTROPY_NEEDED];
- int n = 0;
-# endif
-# ifdef DEVRANDOM
- static const char *randomfiles[] = { DEVRANDOM };
- struct stat randomstats[sizeof(randomfiles) / sizeof(randomfiles[0])];
- int fd;
- unsigned int i;
-# endif
-# ifdef DEVRANDOM_EGD
- static const char *egdsockets[] = { DEVRANDOM_EGD, NULL };
- const char **egdsocket = NULL;
-# endif
-
-# ifdef DEVRANDOM
- memset(randomstats, 0, sizeof(randomstats));
- /*
- * Use a random entropy pool device. Linux, FreeBSD and OpenBSD have
- * this. Use /dev/urandom if you can as /dev/random may block if it runs
- * out of random entries.
- */
-
- for (i = 0; (i < sizeof(randomfiles) / sizeof(randomfiles[0])) &&
- (n < ENTROPY_NEEDED); i++) {
- if ((fd = open(randomfiles[i], O_RDONLY
-# ifdef O_NONBLOCK
- | O_NONBLOCK
-# endif
-# ifdef O_BINARY
- | O_BINARY
-# endif
-# ifdef O_NOCTTY /* If it happens to be a TTY (god forbid), do
- * not make it our controlling tty */
- | O_NOCTTY
-# endif
- )) >= 0) {
- int usec = 10 * 1000; /* spend 10ms on each file */
- int r;
- unsigned int j;
- struct stat *st = &randomstats[i];
-
- /*
- * Avoid using same input... Used to be O_NOFOLLOW above, but
- * it's not universally appropriate...
- */
- if (fstat(fd, st) != 0) {
- close(fd);
- continue;
- }
- for (j = 0; j < i; j++) {
- if (randomstats[j].st_ino == st->st_ino &&
- randomstats[j].st_dev == st->st_dev)
- break;
- }
- if (j < i) {
- close(fd);
- continue;
- }
-
- do {
- int try_read = 0;
-
-# if defined(OPENSSL_SYS_BEOS_R5)
- /*
- * select() is broken in BeOS R5, so we simply try to read
- * something and snooze if we couldn't
- */
- try_read = 1;
-
-# elif defined(OPENSSL_SYS_LINUX)
- /* use poll() */
- struct pollfd pset;
-
- pset.fd = fd;
- pset.events = POLLIN;
- pset.revents = 0;
-
- if (poll(&pset, 1, usec / 1000) < 0)
- usec = 0;
- else
- try_read = (pset.revents & POLLIN) != 0;
-
-# else
- /* use select() */
- fd_set fset;
- struct timeval t;
-
- t.tv_sec = 0;
- t.tv_usec = usec;
-
- if (FD_SETSIZE > 0 && (unsigned)fd >= FD_SETSIZE) {
- /*
- * can't use select, so just try to read once anyway
- */
- try_read = 1;
- } else {
- FD_ZERO(&fset);
- FD_SET(fd, &fset);
-
- if (select(fd + 1, &fset, NULL, NULL, &t) >= 0) {
- usec = t.tv_usec;
- if (FD_ISSET(fd, &fset))
- try_read = 1;
- } else
- usec = 0;
- }
-# endif
-
- if (try_read) {
- r = read(fd, (unsigned char *)tmpbuf + n,
- ENTROPY_NEEDED - n);
- if (r > 0)
- n += r;
-# if defined(OPENSSL_SYS_BEOS_R5)
- if (r == 0)
- snooze(t.tv_usec);
-# endif
- } else
- r = -1;
-
- /*
- * Some Unixen will update t in select(), some won't. For
- * those who won't, or if we didn't use select() in the first
- * place, give up here, otherwise, we will do this once again
- * for the remaining time.
- */
- if (usec == 10 * 1000)
- usec = 0;
- }
- while ((r > 0 ||
- (errno == EINTR || errno == EAGAIN)) && usec != 0
- && n < ENTROPY_NEEDED);
-
- close(fd);
- }
- }
-# endif /* defined(DEVRANDOM) */
-
-# ifdef DEVRANDOM_EGD
- /*
- * Use an EGD socket to read entropy from an EGD or PRNGD entropy
- * collecting daemon.
- */
-
- for (egdsocket = egdsockets; *egdsocket && n < ENTROPY_NEEDED;
- egdsocket++) {
- int r;
-
- r = RAND_query_egd_bytes(*egdsocket, (unsigned char *)tmpbuf + n,
- ENTROPY_NEEDED - n);
- if (r > 0)
- n += r;
- }
-# endif /* defined(DEVRANDOM_EGD) */
-
-# if defined(DEVRANDOM) || defined(DEVRANDOM_EGD)
- if (n > 0) {
- RAND_add(tmpbuf, sizeof(tmpbuf), (double)n);
- OPENSSL_cleanse(tmpbuf, n);
- }
-# endif
-
- /* put in some default random data, we need more than just this */
- l = curr_pid;
- RAND_add(&l, sizeof(l), 0.0);
- l = getuid();
- RAND_add(&l, sizeof(l), 0.0);
-
- l = time(NULL);
- RAND_add(&l, sizeof(l), 0.0);
-
-# if defined(OPENSSL_SYS_BEOS)
- {
- system_info sysInfo;
- get_system_info(&sysInfo);
- RAND_add(&sysInfo, sizeof(sysInfo), 0);
- }
-# endif
-
-# if defined(DEVRANDOM) || defined(DEVRANDOM_EGD)
- return 1;
-# else
- return 0;
-# endif
+ return rand();
}
-# endif /* defined(__OpenBSD__) */
-#endif /* !(defined(OPENSSL_SYS_WINDOWS) ||
- * defined(OPENSSL_SYS_WIN32) ||
- * defined(OPENSSL_SYS_VMS) ||
- * defined(OPENSSL_SYS_OS2) ||
- * defined(OPENSSL_SYS_VXWORKS) ||
- * defined(OPENSSL_SYS_NETWARE)) */
-
-#if defined(OPENSSL_SYS_VXWORKS)
-int RAND_poll(void)
-{
- return 0;
-}
-#endif
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