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autofs-5.0.8 - extend libldap serialization
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From: Leonardo Chiquitto <leonardo.lists@gmail.com>
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It's necessary to serialize calls to ldap_unbind() as well as the
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initial bind.
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---
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CHANGELOG | 1 +
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modules/lookup_ldap.c | 20 ++++++++++++++++----
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2 files changed, 17 insertions(+), 4 deletions(-)
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--- autofs-5.0.7.orig/CHANGELOG
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+++ autofs-5.0.7/CHANGELOG
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@@ -107,6 +107,7 @@
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- use open(2) instead of access(2) to trigger dependent mounts.
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- fix crash due to thread unsafe use of libldap.
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- fix deadlock in init_ldap_connection.
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+- extend fix for crash due to thread unsafe use of libldap.
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25/07/2012 autofs-5.0.7
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=======================
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--- autofs-5.0.7.orig/modules/lookup_ldap.c
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+++ autofs-5.0.7/modules/lookup_ldap.c
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@@ -53,8 +53,9 @@ static struct ldap_schema common_schema[
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static unsigned int common_schema_count = sizeof(common_schema)/sizeof(struct ldap_schema);
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/*
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- * Initialization of LDAP and OpenSSL must be always serialized to
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- * avoid corruption of context structures inside these libraries.
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+ * Initialization and de-initialization of LDAP and OpenSSL must be
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+ * always serialized to avoid corruption of context structures inside
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+ * these libraries.
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*/
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pthread_mutex_t ldapinit_mutex = PTHREAD_MUTEX_INITIALIZER;
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@@ -203,7 +204,7 @@ int bind_ldap_simple(unsigned logopt, LD
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return 0;
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}
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-int unbind_ldap_connection(unsigned logopt, LDAP *ldap, struct lookup_context *ctxt)
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+int __unbind_ldap_connection(unsigned logopt, LDAP *ldap, struct lookup_context *ctxt)
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{
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int rv;
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@@ -220,6 +221,17 @@ int unbind_ldap_connection(unsigned logo
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return rv;
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}
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+int unbind_ldap_connection(unsigned logopt, LDAP *ldap, struct lookup_context *ctxt)
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+{
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+ int rv;
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+
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+ ldapinit_mutex_lock();
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+ rv = __unbind_ldap_connection(logopt, ldap, ctxt);
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+ ldapinit_mutex_unlock();
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+
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+ return rv;
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+}
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+
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LDAP *__init_ldap_connection(unsigned logopt, const char *uri, struct lookup_context *ctxt)
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{
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LDAP *ldap = NULL;
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@@ -280,7 +292,7 @@ LDAP *__init_ldap_connection(unsigned lo
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rv = ldap_start_tls_s(ldap, NULL, NULL);
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if (rv != LDAP_SUCCESS) {
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- unbind_ldap_connection(logopt, ldap, ctxt);
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+ __unbind_ldap_connection(logopt, ldap, ctxt);
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if (ctxt->tls_required) {
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error(logopt, MODPREFIX
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"TLS required but START_TLS failed: %s",
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