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update unbound, fix unbound openssl issue on OS X

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Riccardo Spagni 2015-12-30 12:57:50 +02:00
parent 32a26332f8
commit 2d43ae8063
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GPG key ID: 55432DF31CCD4FCD
101 changed files with 4685 additions and 3057 deletions
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77
external/unbound/util/random.c vendored
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@ -68,6 +68,8 @@
/* nss3 */
#include "secport.h"
#include "pk11pub.h"
#elif defined(HAVE_NETTLE)
#include "yarrow.h"
#endif
/**
@ -76,7 +78,7 @@
*/
#define MAX_VALUE 0x7fffffff
#ifndef HAVE_NSS
#if defined(HAVE_SSL)
void
ub_systemseed(unsigned int ATTR_UNUSED(seed))
{
@ -110,7 +112,7 @@ ub_random_max(struct ub_randstate* state, long int x)
return (long)arc4random_uniform((uint32_t)x);
}
#else
#elif defined(HAVE_NSS)
/* not much to remember for NSS since we use its pk11_random, placeholder */
struct ub_randstate {
@ -144,6 +146,72 @@ long int ub_random(struct ub_randstate* ATTR_UNUSED(state))
return x & MAX_VALUE;
}
#elif defined(HAVE_NETTLE)
/**
* libnettle implements a Yarrow-256 generator (SHA256 + AES),
* and we have to ensure it is seeded before use.
*/
struct ub_randstate {
struct yarrow256_ctx ctx;
int seeded;
};
void ub_systemseed(unsigned int ATTR_UNUSED(seed))
{
/**
* We seed on init and not here, as we need the ctx to re-seed.
* This also means that re-seeding is not supported.
*/
log_err("Re-seeding not supported, generator untouched");
}
struct ub_randstate* ub_initstate(unsigned int seed,
struct ub_randstate* ATTR_UNUSED(from))
{
struct ub_randstate* s = (struct ub_randstate*)calloc(1, sizeof(*s));
uint8_t buf[YARROW256_SEED_FILE_SIZE];
if(!s) {
log_err("malloc failure in random init");
return NULL;
}
/* Setup Yarrow context */
yarrow256_init(&s->ctx, 0, NULL);
if(getentropy(buf, sizeof(buf)) != -1) {
/* got entropy */
yarrow256_seed(&s->ctx, YARROW256_SEED_FILE_SIZE, buf);
s->seeded = yarrow256_is_seeded(&s->ctx);
} else {
/* Stretch the uint32 input seed and feed it to Yarrow */
uint32_t v = seed;
size_t i;
for(i=0; i < (YARROW256_SEED_FILE_SIZE/sizeof(seed)); i++) {
memmove(buf+i*sizeof(seed), &v, sizeof(seed));
v = v*seed + (uint32_t)i;
}
yarrow256_seed(&s->ctx, YARROW256_SEED_FILE_SIZE, buf);
s->seeded = yarrow256_is_seeded(&s->ctx);
}
return s;
}
long int ub_random(struct ub_randstate* s)
{
/* random 31 bit value. */
long int x = 0;
if (!s || !s->seeded) {
log_err("Couldn't generate randomness, Yarrow-256 generator not yet seeded");
} else {
yarrow256_random(&s->ctx, sizeof(x), (uint8_t *)&x);
}
return x & MAX_VALUE;
}
#endif /* HAVE_SSL or HAVE_NSS or HAVE_NETTLE */
#if defined(HAVE_NSS) || defined(HAVE_NETTLE)
long int
ub_random_max(struct ub_randstate* state, long int x)
{
@ -155,12 +223,11 @@ ub_random_max(struct ub_randstate* state, long int x)
v = ub_random(state);
return (v % x);
}
#endif /* HAVE_NSS */
#endif /* HAVE_NSS or HAVE_NETTLE */
void
ub_randfree(struct ub_randstate* s)
{
if(s)
free(s);
free(s);
/* user app must do RAND_cleanup(); */
}