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Fix build with LibreSSL 2.7.

Browse Source 
PR:		226903
Submitted by:	Charlie Li
Reported by:	Piotr Kubaj
Sponsored by:	Absolight
This commit is contained in:
Mathieu Arnold 2018-06-08 13:28:14 +00:00
parent 260e8ad78a
commit f1f5685125
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=471999
1 changed files with 386 additions and 0 deletions
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386
dns/bind912/files/patch-libressl2.7 Normal file
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@ -0,0 +1,386 @@
From 1e64b869b5b33e2deda7059e4348d9870f86d315 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@sury.org>
Date: Thu, 3 May 2018 13:59:04 +0200
Subject: [PATCH 1/3] Add support for LibreSSL 2.7
(cherry picked from commit 29ff62a1492ce3dc702a887e864d00bf1949aed3)
---
config.h.in | 12 +++++++
configure | 13 +++++++
configure.in | 2 ++
lib/dns/openssldh_link.c | 69 +++++++++++++++++++++++--------------
lib/dns/openssldsa_link.c | 2 +-
lib/dns/opensslecdsa_link.c | 11 +++---
lib/dns/opensslrsa_link.c | 36 ++++++++++++-------
7 files changed, 103 insertions(+), 42 deletions(-)
diff --git config.h.in config.h.in
index 0cc04c5dd9..65ee20eeb5 100644
--- config.h.in
+++ config.h.in
@@ -206,6 +206,9 @@ int sigwait(const unsigned int *set, int *sig);
/* Define to 1 if you have the <devpoll.h> header file. */
#undef HAVE_DEVPOLL_H
+/* Define to 1 if you have the `DH_get0_key' function. */
+#undef HAVE_DH_GET0_KEY
+
/* Define to 1 if you have the `dlclose' function. */
#undef HAVE_DLCLOSE
@@ -221,6 +224,12 @@ int sigwait(const unsigned int *set, int *sig);
/* Define to 1 to enable dnstap support */
#undef HAVE_DNSTAP
+/* Define to 1 if you have the `DSA_get0_pqg' function. */
+#undef HAVE_DSA_GET0_PQG
+
+/* Define to 1 if you have the `ECDSA_SIG_get0' function. */
+#undef HAVE_ECDSA_SIG_GET0
+
/* Define to 1 if you have the <editline/readline.h> header file. */
#undef HAVE_EDITLINE_READLINE_H
@@ -431,6 +440,9 @@ int sigwait(const unsigned int *set, int *sig);
/* Define to 1 if you have the <regex.h> header file. */
#undef HAVE_REGEX_H
+/* Define to 1 if you have the `RSA_set0_key' function. */
+#undef HAVE_RSA_SET0_KEY
+
/* Define to 1 if you have the <sched.h> header file. */
#undef HAVE_SCHED_H
diff --git configure configure
index fc9256fa8d..2dde1a681d 100755
--- configure
+++ configure
@@ -16724,6 +16724,19 @@ if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF
+fi
+done
+
+
+ for ac_func in DH_get0_key ECDSA_SIG_get0 RSA_set0_key DSA_get0_pqg
+do :
+ as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+ cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
fi
done
diff --git configure.in configure.in
index 99139ba5ac..193562c783 100644
--- configure.in
+++ configure.in
@@ -1781,6 +1781,8 @@ DSO_METHOD_dlfcn();
AC_CHECK_FUNCS(EVP_sha256 EVP_sha384 EVP_sha512)
+ AC_CHECK_FUNCS([DH_get0_key ECDSA_SIG_get0 RSA_set0_key DSA_get0_pqg])
+
AC_MSG_CHECKING(for OpenSSL ECDSA support)
have_ecdsa=""
AC_TRY_RUN([
diff --git lib/dns/openssldh_link.c lib/dns/openssldh_link.c
index e74bee2e2d..0db673dd31 100644
--- lib/dns/openssldh_link.c
+++ lib/dns/openssldh_link.c
@@ -71,62 +71,81 @@ static isc_result_t openssldh_todns(const dst_key_t *key, isc_buffer_t *data);
static BIGNUM *bn2, *bn768, *bn1024, *bn1536;
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+#if !defined(HAVE_DH_GET0_KEY)
/*
* DH_get0_key, DH_set0_key, DH_get0_pqg and DH_set0_pqg
* are from OpenSSL 1.1.0.
*/
static void
DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key) {
- if (pub_key != NULL)
+ if (pub_key != NULL) {
*pub_key = dh->pub_key;
- if (priv_key != NULL)
+ }
+ if (priv_key != NULL) {
*priv_key = dh->priv_key;
+ }
}
static int
DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key) {
- /* Note that it is valid for priv_key to be NULL */
- if (pub_key == NULL)
- return 0;
+ if (pub_key != NULL) {
+ BN_free(dh->pub_key);
+ dh->pub_key = pub_key;
+ }
- BN_free(dh->pub_key);
- BN_free(dh->priv_key);
- dh->pub_key = pub_key;
- dh->priv_key = priv_key;
+ if (priv_key != NULL) {
+ BN_free(dh->priv_key);
+ dh->priv_key = priv_key;
+ }
- return 1;
+ return (1);
}
static void
DH_get0_pqg(const DH *dh,
const BIGNUM **p, const BIGNUM **q, const BIGNUM **g)
{
- if (p != NULL)
+ if (p != NULL) {
*p = dh->p;
- if (q != NULL)
+ }
+ if (q != NULL) {
*q = dh->q;
- if (g != NULL)
+ }
+ if (g != NULL) {
*g = dh->g;
+ }
}
static int
-DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g) {
- /* q is optional */
- if (p == NULL || g == NULL)
- return(0);
- BN_free(dh->p);
- BN_free(dh->q);
- BN_free(dh->g);
- dh->p = p;
- dh->q = q;
- dh->g = g;
+DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g)
+{
+ /* If the fields p and g in d are NULL, the corresponding input
+ * parameters MUST be non-NULL. q may remain NULL.
+ */
+ if ((dh->p == NULL && p == NULL)
+ || (dh->g == NULL && g == NULL))
+ {
+ return 0;
+ }
+
+ if (p != NULL) {
+ BN_free(dh->p);
+ dh->p = p;
+ }
+ if (q != NULL) {
+ BN_free(dh->q);
+ dh->q = q;
+ }
+ if (g != NULL) {
+ BN_free(dh->g);
+ dh->g = g;
+ }
if (q != NULL) {
dh->length = BN_num_bits(q);
}
- return(1);
+ return (1);
}
#define DH_clear_flags(d, f) (d)->flags &= ~(f)
diff --git lib/dns/openssldsa_link.c lib/dns/openssldsa_link.c
index 1c541ae73a..dfbd484247 100644
--- lib/dns/openssldsa_link.c
+++ lib/dns/openssldsa_link.c
@@ -52,7 +52,7 @@
static isc_result_t openssldsa_todns(const dst_key_t *key, isc_buffer_t *data);
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+#if !defined(HAVE_DSA_GET0_PQG)
static void
DSA_get0_pqg(const DSA *d, const BIGNUM **p, const BIGNUM **q,
const BIGNUM **g)
diff --git lib/dns/opensslecdsa_link.c lib/dns/opensslecdsa_link.c
index a8941a808a..2e47459249 100644
--- lib/dns/opensslecdsa_link.c
+++ lib/dns/opensslecdsa_link.c
@@ -45,20 +45,23 @@
#define DST_RET(a) {ret = a; goto err;}
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+#if !defined(HAVE_ECDSA_SIG_GET0)
/* From OpenSSL 1.1 */
static void
ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps) {
- if (pr != NULL)
+ if (pr != NULL) {
*pr = sig->r;
- if (ps != NULL)
+ }
+ if (ps != NULL) {
*ps = sig->s;
+ }
}
static int
ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s) {
- if (r == NULL || s == NULL)
+ if (r == NULL || s == NULL) {
return 0;
+ }
BN_clear_free(sig->r);
BN_clear_free(sig->s);
diff --git lib/dns/opensslrsa_link.c lib/dns/opensslrsa_link.c
index bdb0a3931d..43f6d317bc 100644
--- lib/dns/opensslrsa_link.c
+++ lib/dns/opensslrsa_link.c
@@ -123,7 +123,7 @@
#endif
#define DST_RET(a) {ret = a; goto err;}
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+#if !defined(HAVE_RSA_SET0_KEY)
/* From OpenSSL 1.1.0 */
static int
RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d) {
@@ -133,8 +133,9 @@ RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d) {
* parameters MUST be non-NULL for n and e. d may be
* left NULL (in case only the public key is used).
*/
- if ((r->n == NULL && n == NULL) || (r->e == NULL && e == NULL))
+ if ((r->n == NULL && n == NULL) || (r->e == NULL && e == NULL)) {
return 0;
+ }
if (n != NULL) {
BN_free(r->n);
@@ -159,8 +160,9 @@ RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q) {
* If the fields p and q in r are NULL, the corresponding input
* parameters MUST be non-NULL.
*/
- if ((r->p == NULL && p == NULL) || (r->q == NULL && q == NULL))
+ if ((r->p == NULL && p == NULL) || (r->q == NULL && q == NULL)) {
return 0;
+ }
if (p != NULL) {
BN_free(r->p);
@@ -183,7 +185,9 @@ RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp) {
if ((r->dmp1 == NULL && dmp1 == NULL) ||
(r->dmq1 == NULL && dmq1 == NULL) ||
(r->iqmp == NULL && iqmp == NULL))
+ {
return 0;
+ }
if (dmp1 != NULL) {
BN_free(r->dmp1);
@@ -205,32 +209,40 @@ static void
RSA_get0_key(const RSA *r,
const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
{
- if (n != NULL)
+ if (n != NULL) {
*n = r->n;
- if (e != NULL)
+ }
+ if (e != NULL) {
*e = r->e;
- if (d != NULL)
+ }
+ if (d != NULL) {
*d = r->d;
+ }
}
static void
RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q) {
- if (p != NULL)
+ if (p != NULL) {
*p = r->p;
- if (q != NULL)
- *q = r->q;
+ }
+ if (q != NULL) {
+ *q = r->q;
+ }
}
static void
RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1,
const BIGNUM **iqmp)
{
- if (dmp1 != NULL)
+ if (dmp1 != NULL) {
*dmp1 = r->dmp1;
- if (dmq1 != NULL)
+ }
+ if (dmq1 != NULL) {
*dmq1 = r->dmq1;
- if (iqmp != NULL)
+ }
+ if (iqmp != NULL) {
*iqmp = r->iqmp;
+ }
}
static int
--
2.17.1
From e3a318e8d3e050677cfe603b25eaa9607c202276 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@sury.org>
Date: Wed, 2 May 2018 14:18:06 +0200
Subject: [PATCH 2/3] Workaround LibreSSL 2.7.0-2.7.2 quirk in DH_set0_key
(cherry picked from commit 6b9e3b7b069509e79c59f89403a91761c300bdee)
---
lib/dns/openssldh_link.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git lib/dns/openssldh_link.c lib/dns/openssldh_link.c
index 0db673dd31..8dfda0d2fa 100644
--- lib/dns/openssldh_link.c
+++ lib/dns/openssldh_link.c
@@ -44,6 +44,8 @@
#include <dst/result.h>
+#include <openssl/opensslv.h>
+
#include "dst_internal.h"
#include "dst_openssl.h"
#include "dst_parse.h"
@@ -564,7 +566,15 @@ openssldh_fromdns(dst_key_t *key, isc_buffer_t *data) {
DH_free(dh);
return (dst__openssl_toresult(ISC_R_NOMEMORY));
}
+#if (LIBRESSL_VERSION_NUMBER >= 0x2070000fL) && (LIBRESSL_VERSION_NUMBER <= 0x2070200fL)
+ /*
+ * LibreSSL << 2.7.3 DH_get0_key requires priv_key to be set when
+ * DH structure is empty, hence we cannot use DH_get0_key().
+ */
+ dh->pub_key = pub_key;
+#else /* LIBRESSL_VERSION_NUMBER */
DH_set0_key(dh, pub_key, NULL);
+#endif /* LIBRESSL_VERSION_NUMBER */
isc_region_consume(&r, publen);
key->key_size = BN_num_bits(p);
--
2.17.1