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authorwzt.wzt@gmail.com <wzt.wzt@gmail.com>2010-02-23 23:15:28 +0800
committerJames Morris <jmorris@namei.org>2010-02-24 08:11:02 +1100
commit189b3b1c89761054fee3438f063d7f257306e2d8 (patch)
tree8099352fa731fca91b95d862ac0d7199f21ca54d /include/linux/security.h
parent2ae3ba39389b51d8502123de0a59374bec899c4d (diff)
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Security: add static to security_ops and default_security_ops variable
Enhance the security framework to support resetting the active security module. This eliminates the need for direct use of the security_ops and default_security_ops variables outside of security.c, so make security_ops and default_security_ops static. Also remove the secondary_ops variable as a cleanup since there is no use for that. secondary_ops was originally used by SELinux to call the "secondary" security module (capability or dummy), but that was replaced by direct calls to capability and the only remaining use is to save and restore the original security ops pointer value if SELinux is disabled by early userspace based on /etc/selinux/config. Further, if we support this directly in the security framework, then we can just use &default_security_ops for this purpose since that is now available. Signed-off-by: Zhitong Wang <zhitong.wangzt@alibaba-inc.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'include/linux/security.h')
-rw-r--r--include/linux/security.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/security.h b/include/linux/security.h
index a4dc74d86ac..233d20b52c1 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -95,6 +95,8 @@ struct seq_file;
extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
extern int cap_netlink_recv(struct sk_buff *skb, int cap);
+void reset_security_ops(void);
+
#ifdef CONFIG_MMU
extern unsigned long mmap_min_addr;
extern unsigned long dac_mmap_min_addr;