From: Daniel Jurgens <dani...@mellanox.com>
Implement and attach hooks to allocate and free Infiniband QP and MAD
agent security structures.
Signed-off-by: Daniel Jurgens <dani...@mellanox.com>
Reviewed-by: Eli Cohen <e...@mellanox.com>
---
include/rdma/ib_mad.h | 1 +
include/rdma/ib_verbs.h | 1 +
security/selinux/hooks.c | 53 +++++++++++++++++++++++++++++++++++++++
security/selinux/include/objsec.h | 5 ++++
4 files changed, 60 insertions(+)
diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h
index c8a773f..a1ed025 100644
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -537,6 +537,7 @@ struct ib_mad_agent {
u32 flags;
u8 port_num;
u8 rmpp_version;
+ void *m_security;
};
/**
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 3f6780b..e522acb 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1454,6 +1454,7 @@ struct ib_qp {
void *qp_context;
u32 qp_num;
enum ib_qp_type qp_type;
+ struct ib_qp_security *qp_sec;
};
struct ib_mr {
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 6a8841d..4f13ea4 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -17,6 +17,7 @@
* Paul Moore <p...@paul-moore.com>
* Copyright (C) 2007 Hitachi Software Engineering Co., Ltd.
* Yuichi Nakamura <yna...@hitachisoft.jp>
+ * Copyright (C) 2016 Mellanox Technologies
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
@@ -83,6 +84,8 @@
#include <linux/export.h>
#include <linux/msg.h>
#include <linux/shm.h>
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_mad.h>
#include "avc.h"
#include "objsec.h"
@@ -6015,6 +6018,47 @@ static void selinux_unregister_ib_flush_callback(void)
mutex_unlock(&ib_flush_mutex);
}
+static int selinux_ib_qp_alloc_security(struct ib_qp_security *qp_sec)
+{
+ struct ib_security_struct *sec;
+
+ sec = kzalloc(sizeof(*sec), GFP_ATOMIC);
+ if (!sec)
+ return -ENOMEM;
+ sec->sid = current_sid();
+
+ qp_sec->q_security = sec;
+ return 0;
+}
+
+static void selinux_ib_qp_free_security(struct ib_qp_security *qp_sec)
+{
+ struct ib_security_struct *sec = qp_sec->q_security;
+
+ qp_sec->q_security = NULL;
+ kfree(sec);
+}
+
+static int selinux_ib_mad_agent_alloc_security(struct ib_mad_agent *mad_agent)
+{
+ struct ib_security_struct *sec;
+
+ sec = kzalloc(sizeof(*sec), GFP_ATOMIC);
+ if (!sec)
+ return -ENOMEM;
+ sec->sid = current_sid();
+
+ mad_agent->m_security = sec;
+ return 0;
+}
+
+static void selinux_ib_mad_agent_free_security(struct ib_mad_agent *mad_agent)
+{
+ struct ib_security_struct *sec = mad_agent->m_security;
+
+ mad_agent->m_security = NULL;
+ kfree(sec);
+}
#endif
static struct security_hook_list selinux_hooks[] = {
@@ -6198,11 +6242,20 @@ static struct security_hook_list selinux_hooks[] = {
LSM_HOOK_INIT(tun_dev_attach_queue, selinux_tun_dev_attach_queue),
LSM_HOOK_INIT(tun_dev_attach, selinux_tun_dev_attach),
LSM_HOOK_INIT(tun_dev_open, selinux_tun_dev_open),
+
#ifdef CONFIG_SECURITY_INFINIBAND
LSM_HOOK_INIT(register_ib_flush_callback,
selinux_register_ib_flush_callback),
LSM_HOOK_INIT(unregister_ib_flush_callback,
selinux_unregister_ib_flush_callback),
+ LSM_HOOK_INIT(ib_qp_alloc_security,
+ selinux_ib_qp_alloc_security),
+ LSM_HOOK_INIT(ib_qp_free_security,
+ selinux_ib_qp_free_security),
+ LSM_HOOK_INIT(ib_mad_agent_alloc_security,
+ selinux_ib_mad_agent_alloc_security),
+ LSM_HOOK_INIT(ib_mad_agent_free_security,
+ selinux_ib_mad_agent_free_security),
#endif
#ifdef CONFIG_SECURITY_NETWORK_XFRM
diff --git a/security/selinux/include/objsec.h
b/security/selinux/include/objsec.h
index c21e135..8e7db43 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -10,6 +10,7 @@
*
* Copyright (C) 2001,2002 Networks Associates Technology, Inc.
* Copyright (C) 2003 Red Hat, Inc., James Morris <jmor...@redhat.com>
+ * Copyright (C) 2016 Mellanox Technologies
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
@@ -128,6 +129,10 @@ struct key_security_struct {
u32 sid; /* SID of key */
};
+struct ib_security_struct {
+ u32 sid; /* SID of the queue pair or MAD agent */
+};
+
extern unsigned int selinux_checkreqprot;
#endif /* _SELINUX_OBJSEC_H_ */
--
1.8.3.1
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