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Diffstat (limited to 'sys/security/mac_test/mac_test.c')
-rw-r--r--sys/security/mac_test/mac_test.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/sys/security/mac_test/mac_test.c b/sys/security/mac_test/mac_test.c
index 7f02b6c..2b13379 100644
--- a/sys/security/mac_test/mac_test.c
+++ b/sys/security/mac_test/mac_test.c
@@ -46,6 +46,7 @@
#include <sys/extattr.h>
#include <sys/kernel.h>
#include <sys/mac.h>
+#include <sys/malloc.h>
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/systm.h>
@@ -246,6 +247,11 @@ static int
mac_test_init_ipq_label(struct label *label, int flag)
{
+ if (flag & M_WAITOK)
+ WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL,
+ "mac_test_init_ipq_label() at %s:%d", __FILE__,
+ __LINE__);
+
SLOT(label) = IPQMAGIC;
atomic_add_int(&init_count_ipq, 1);
return (0);
@@ -255,6 +261,11 @@ static int
mac_test_init_mbuf_label(struct label *label, int flag)
{
+ if (flag & M_WAITOK)
+ WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL,
+ "mac_test_init_mbuf_label() at %s:%d", __FILE__,
+ __LINE__);
+
SLOT(label) = MBUFMAGIC;
atomic_add_int(&init_count_mbuf, 1);
return (0);
@@ -280,6 +291,11 @@ static int
mac_test_init_socket_label(struct label *label, int flag)
{
+ if (flag & M_WAITOK)
+ WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL,
+ "mac_test_init_socket_label() at %s:%d", __FILE__,
+ __LINE__);
+
SLOT(label) = SOCKETMAGIC;
atomic_add_int(&init_count_socket, 1);
return (0);
@@ -289,6 +305,11 @@ static int
mac_test_init_socket_peer_label(struct label *label, int flag)
{
+ if (flag & M_WAITOK)
+ WITNESS_WARN(WARN_GIANTOK | WARN_SLEEPOK, NULL,
+ "mac_test_init_socket_peer_label() at %s:%d", __FILE__,
+ __LINE__);
+
SLOT(label) = SOCKETMAGIC;
atomic_add_int(&init_count_socket_peerlabel, 1);
return (0);
@@ -392,6 +413,14 @@ static void
mac_test_destroy_mbuf_label(struct label *label)
{
+ /*
+ * If we're loaded dynamically, there may be mbufs in flight that
+ * didn't have label storage allocated for them. Handle this
+ * gracefully.
+ */
+ if (label == NULL)
+ return;
+
if (SLOT(label) == MBUFMAGIC || SLOT(label) == 0) {
atomic_add_int(&destroy_count_mbuf, 1);
SLOT(label) = EXMAGIC;
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