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Moved the (lame) random number seeding code to the dst initialize routine,

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since the openssl dsa code calls the openssl random functions directly,
not through dst_random_get.
This commit is contained in:
Brian Wellington 2000-04-07 20:50:30 +00:00
parent 09c9fc94cf
commit f383cdfeb8
1 changed files with 22 additions and 30 deletions
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52
lib/dns/sec/dst/dst_api.c
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@ -17,7 +17,7 @@
/*
* Principal Author: Brian Wellington
* $Id: dst_api.c,v 1.24 2000/03/28 03:06:36 bwelling Exp $
* $Id: dst_api.c,v 1.25 2000/04/07 20:50:30 bwelling Exp $
*/
#include <config.h>
@ -812,7 +812,6 @@ dst_secret_size(const dst_key_t *key, unsigned int *n) {
isc_result_t
dst_random_get(const unsigned int wanted, isc_buffer_t *target) {
isc_region_t r;
isc_result_t result;
int status;
RUNTIME_CHECK(isc_once_do(&once, initialize) == ISC_R_SUCCESS);
@ -824,40 +823,12 @@ dst_random_get(const unsigned int wanted, isc_buffer_t *target) {
RUNTIME_CHECK(isc_mutex_lock((&random_lock)) == ISC_R_SUCCESS);
status = RAND_bytes(r.base, wanted);
if (status == 0) {
isc_random_t rctx;
isc_uint32_t val;
isc_time_t now;
int count = 0;
isc_random_init(&rctx);
result = isc_time_now(&now);
if (result != ISC_R_SUCCESS)
goto failure;
isc_random_seed(&rctx, isc_time_nanoseconds(&now));
while (RAND_status() == 0 && count < 1000) {
isc_random_get(&rctx, &val);
RAND_add(&val, sizeof(isc_uint32_t), 1);
count++;
}
isc_random_invalidate(&rctx);
if (RAND_status() == 0) {
result = DST_R_NORANDOMNESS;
goto failure;
}
status = RAND_bytes(r.base, wanted);
}
RUNTIME_CHECK(isc_mutex_unlock((&random_lock)) == ISC_R_SUCCESS);
if (status == 0)
return (DST_R_NORANDOMNESS);
isc_buffer_add(target, wanted);
return (ISC_R_SUCCESS);
failure:
RUNTIME_CHECK(isc_mutex_unlock((&random_lock)) == ISC_R_SUCCESS);
return (result);
}
/***
@ -888,6 +859,27 @@ initialize() {
#ifdef OPENSSL
dst_s_openssldsa_init();
dst_s_openssldh_init();
/*
* Seed the random number generator, if necessary.
* XXX This doesn't do a very good job, and must be fixed.
*/
if (RAND_status() == 0) {
isc_random_t rctx;
isc_uint32_t val;
isc_time_t now;
isc_result_t result;
isc_random_init(&rctx);
result = isc_time_now(&now);
INSIST(result == ISC_R_SUCCESS);
isc_random_seed(&rctx, isc_time_nanoseconds(&now));
while (RAND_status() == 0) {
isc_random_get(&rctx, &val);
RAND_add(&val, sizeof(isc_uint32_t), 1);
}
isc_random_invalidate(&rctx);
}
#endif
}