selinux: add support for RTM_NEWCHAIN, RTM_DELCHAIN, and RTM_GETCHAIN

[sfrench/cifs-2.6.git] / security / selinux / nlmsgtab.c

diff --git a/security/selinux/nlmsgtab.c b/security/selinux/nlmsgtab.c
index 74b951f55608dca90a95cba914f3e74cd7e3b197..9cec81209617d5295cb244ca3b2c4079ae578391 100644 (file)
--- a/security/selinux/nlmsgtab.c
+++ b/security/selinux/nlmsgtab.c
@@ -80,6 +80,9 @@ static const struct nlmsg_perm nlmsg_route_perms[] =
        { RTM_NEWSTATS,         NETLINK_ROUTE_SOCKET__NLMSG_READ },
        { RTM_GETSTATS,         NETLINK_ROUTE_SOCKET__NLMSG_READ  },
        { RTM_NEWCACHEREPORT,   NETLINK_ROUTE_SOCKET__NLMSG_READ },
+       { RTM_NEWCHAIN,         NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+       { RTM_DELCHAIN,         NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+       { RTM_GETCHAIN,         NETLINK_ROUTE_SOCKET__NLMSG_READ  },
 };
 
 static const struct nlmsg_perm nlmsg_tcpdiag_perms[] =
@@ -158,7 +161,11 @@ int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm)
 
        switch (sclass) {
        case SECCLASS_NETLINK_ROUTE_SOCKET:
-               /* RTM_MAX always point to RTM_SETxxxx, ie RTM_NEWxxx + 3 */
+               /* RTM_MAX always points to RTM_SETxxxx, ie RTM_NEWxxx + 3.
+                * If the BUILD_BUG_ON() below fails you must update the
+                * structures at the top of this file with the new mappings
+                * before updating the BUILD_BUG_ON() macro!
+                */
                BUILD_BUG_ON(RTM_MAX != (RTM_NEWCHAIN + 3));
                err = nlmsg_perm(nlmsg_type, perm, nlmsg_route_perms,
                                 sizeof(nlmsg_route_perms));
@@ -170,6 +177,10 @@ int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm)
                break;
 
        case SECCLASS_NETLINK_XFRM_SOCKET:
+               /* If the BUILD_BUG_ON() below fails you must update the
+                * structures at the top of this file with the new mappings
+                * before updating the BUILD_BUG_ON() macro!
+                */
                BUILD_BUG_ON(XFRM_MSG_MAX != XFRM_MSG_MAPPING);
                err = nlmsg_perm(nlmsg_type, perm, nlmsg_xfrm_perms,
                                 sizeof(nlmsg_xfrm_perms));