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authorKamil Dudka <kdudka@redhat.com>2018-02-08 11:23:49 +0100
committerKamil Dudka <kdudka@redhat.com>2018-02-15 10:18:34 +0100
commit1605d93a7b8ac4b7f348e304e018e9d15ffaabf0 (patch)
treea6d61ca644ec7ea171e8e95d95a7de5c24954662
parentb46cfbc068ebe90f18e9777b9e877e4934c1b5e3 (diff)
nss: use PK11_CreateManagedGenericObject() if available
... so that the memory allocated by applications using libcurl does not grow per each TLS connection. Bug: https://bugzilla.redhat.com/1510247 Closes #2297
-rwxr-xr-xconfigure.ac9
-rw-r--r--lib/vtls/nss.c12
2 files changed, 20 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index d305e9693..798fa5f1e 100755
--- a/configure.ac
+++ b/configure.ac
@@ -2483,6 +2483,15 @@ if test -z "$ssl_backends" -o "x$OPT_NSS" != xno; then
if test "x$USE_NSS" = "xyes"; then
AC_MSG_NOTICE([detected NSS version $version])
+ dnl PK11_CreateManagedGenericObject() was introduced in NSS 3.34 because
+ dnl PK11_DestroyGenericObject() does not release resources allocated by
+ dnl PK11_CreateGenericObject() early enough.
+ AC_CHECK_FUNC(PK11_CreateManagedGenericObject,
+ [
+ AC_DEFINE(HAVE_PK11_CREATEMANAGEDGENERICOBJECT, 1,
+ [if you have the PK11_CreateManagedGenericObject function])
+ ])
+
dnl needed when linking the curl tool without USE_EXPLICIT_LIB_DEPS
NSS_LIBS=$addlib
AC_SUBST([NSS_LIBS])
diff --git a/lib/vtls/nss.c b/lib/vtls/nss.c
index a3ef37a12..458f9d814 100644
--- a/lib/vtls/nss.c
+++ b/lib/vtls/nss.c
@@ -440,7 +440,17 @@ static CURLcode nss_create_object(struct ssl_connect_data *connssl,
PK11_SETATTRS(attrs, attr_cnt, CKA_TRUST, pval, sizeof(*pval));
}
- obj = PK11_CreateGenericObject(slot, attrs, attr_cnt, PR_FALSE);
+ /* PK11_CreateManagedGenericObject() was introduced in NSS 3.34 because
+ * PK11_DestroyGenericObject() does not release resources allocated by
+ * PK11_CreateGenericObject() early enough. */
+ obj =
+#ifdef HAVE_PK11_CREATEMANAGEDGENERICOBJECT
+ PK11_CreateManagedGenericObject
+#else
+ PK11_CreateGenericObject
+#endif
+ (slot, attrs, attr_cnt, PR_FALSE);
+
PK11_FreeSlot(slot);
if(!obj)
return result;