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@ -0,0 +1,76 @@
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From c7801fabb1597c4d4b18b21fcfcf6ab064040ba5 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
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Date: Wed, 7 Aug 2024 16:19:46 +0200
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Subject: [PATCH] Detect presence of dns_zone_setmaxrrperset
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Because it were backported into bind-9.16 branch by upstream and testing
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of simpler variant fails in some cases. This assumes these call do not
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appear only after 9.18.28, but may be backported into previous versions.
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Tests just call presence and assumes dns_db_setmaxtypepername will be
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present also.
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---
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configure.ac | 4 ++++
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src/ldap_driver.c | 25 +++++++++++++++++++++++++
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2 files changed, 29 insertions(+)
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diff --git a/configure.ac b/configure.ac
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index faac214..b897c2b 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -137,6 +137,10 @@ AC_CHECK_LIB([dns], [dns_db_setservestalettl],
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[AC_DEFINE([HAVE_DNS_SERVESTALE], 1, [Define if dns library provides dns_db_setservestalettl])]
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)
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+AC_CHECK_LIB([dns], [dns_db_setmaxrrperset],
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+ [AC_DEFINE([HAVE_DNS_DB_SETMAXRRPERSET], 1, [Define if dns library provides dns_db_setmaxrrperset])]
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+)
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+
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dnl Older autoconf (2.59, for example) doesn't define docdir
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[[ ! -n "$docdir" ]] && docdir='${datadir}/doc/${PACKAGE_TARNAME}'
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AC_SUBST([docdir])
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diff --git a/src/ldap_driver.c b/src/ldap_driver.c
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index 5f9e00a..29896d4 100644
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--- a/src/ldap_driver.c
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+++ b/src/ldap_driver.c
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@@ -909,6 +909,27 @@ adjusthashsize(dns_db_t *db, size_t size) {
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}
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#endif
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+#if HAVE_DNS_DB_SETMAXRRPERSET
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+/* Calls added to fix CVE-2024-1737 in 9.18.28 */
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+static void
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+setmaxrrperset(dns_db_t *db, uint32_t value) {
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+ ldapdb_t *ldapdb = (ldapdb_t *) db;
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+
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+ REQUIRE(VALID_LDAPDB(ldapdb));
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+
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+ return dns_db_setmaxrrperset(ldapdb->rbtdb, value);
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+}
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+
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+static void
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+setmaxtypepername(dns_db_t *db, uint32_t value) {
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+ ldapdb_t *ldapdb = (ldapdb_t *) db;
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+
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+ REQUIRE(VALID_LDAPDB(ldapdb));
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+
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+ return dns_db_setmaxtypepername(ldapdb->rbtdb, value);
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+}
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+#endif
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+
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static dns_dbmethods_t ldapdb_methods = {
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attach,
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detach,
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@@ -969,6 +990,10 @@ static dns_dbmethods_t ldapdb_methods = {
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#if LIBDNS_VERSION_MAJOR >= 1606
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adjusthashsize, /* adjusthashsize */
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#endif
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+#if HAVE_DNS_DB_SETMAXRRPERSET
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+ setmaxrrperset, /* setmaxrrperset */
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+ setmaxtypepername, /* setmaxtypepername */
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+#endif
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};
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isc_result_t ATTR_NONNULLS
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--
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2.45.2
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