Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 156 insertions, 0 deletions

diff --git a/security/selinux/nlmsgtab.c b/security/selinux/nlmsgtab.c
new file mode 100644
index 000000000000..fa7fa030e6eb
--- /dev/null
+++ b/security/selinux/nlmsgtab.c
@@ -0,0 +1,156 @@
+/*
+ * Netlink message type permission tables, for user generated messages.
+ *
+ * Author: James Morris <jmorris@redhat.com>
+ *
+ * Copyright (C) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <linux/if.h>
+#include <linux/netfilter_ipv4/ip_queue.h>
+#include <linux/tcp_diag.h>
+#include <linux/xfrm.h>
+#include <linux/audit.h>
+
+#include "flask.h"
+#include "av_permissions.h"
+
+struct nlmsg_perm
+{
+	u16	nlmsg_type;
+	u32	perm;
+};
+
+static struct nlmsg_perm nlmsg_route_perms[] =
+{
+	{ RTM_NEWLINK,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELLINK,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETLINK,		NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_SETLINK,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_NEWADDR,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELADDR,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETADDR,		NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_NEWROUTE,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELROUTE,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETROUTE,		NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_NEWNEIGH,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELNEIGH,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETNEIGH,		NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_NEWRULE,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELRULE,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETRULE,		NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_NEWQDISC,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELQDISC,		NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETQDISC,		NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_NEWTCLASS,	NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELTCLASS,	NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETTCLASS,	NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_NEWTFILTER,	NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELTFILTER,	NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETTFILTER,	NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_NEWACTION,	NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_DELACTION,	NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETACTION,	NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_NEWPREFIX,	NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
+	{ RTM_GETPREFIX,	NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_GETMULTICAST,	NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+	{ RTM_GETANYCAST,	NETLINK_ROUTE_SOCKET__NLMSG_READ  },
+};
+
+static struct nlmsg_perm nlmsg_firewall_perms[] =
+{
+	{ IPQM_MODE,		NETLINK_FIREWALL_SOCKET__NLMSG_WRITE },
+	{ IPQM_VERDICT,		NETLINK_FIREWALL_SOCKET__NLMSG_WRITE },
+};
+
+static struct nlmsg_perm nlmsg_tcpdiag_perms[] =
+{
+	{ TCPDIAG_GETSOCK,	NETLINK_TCPDIAG_SOCKET__NLMSG_READ },
+};
+
+static struct nlmsg_perm nlmsg_xfrm_perms[] =
+{
+	{ XFRM_MSG_NEWSA,	NETLINK_XFRM_SOCKET__NLMSG_WRITE },
+	{ XFRM_MSG_DELSA,	NETLINK_XFRM_SOCKET__NLMSG_WRITE },
+	{ XFRM_MSG_GETSA,	NETLINK_XFRM_SOCKET__NLMSG_READ  },
+	{ XFRM_MSG_NEWPOLICY,	NETLINK_XFRM_SOCKET__NLMSG_WRITE },
+	{ XFRM_MSG_DELPOLICY,	NETLINK_XFRM_SOCKET__NLMSG_WRITE },
+	{ XFRM_MSG_GETPOLICY,	NETLINK_XFRM_SOCKET__NLMSG_READ  },
+	{ XFRM_MSG_ALLOCSPI,	NETLINK_XFRM_SOCKET__NLMSG_WRITE },
+	{ XFRM_MSG_UPDPOLICY,	NETLINK_XFRM_SOCKET__NLMSG_WRITE },
+	{ XFRM_MSG_UPDSA,	NETLINK_XFRM_SOCKET__NLMSG_WRITE },
+};
+
+static struct nlmsg_perm nlmsg_audit_perms[] =
+{
+	{ AUDIT_GET,		NETLINK_AUDIT_SOCKET__NLMSG_READ  },
+	{ AUDIT_SET,		NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
+	{ AUDIT_LIST,		NETLINK_AUDIT_SOCKET__NLMSG_READ  },
+	{ AUDIT_ADD,		NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
+	{ AUDIT_DEL,		NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
+	{ AUDIT_USER,		NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
+	{ AUDIT_LOGIN,		NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
+};
+
+
+static int nlmsg_perm(u16 nlmsg_type, u32 *perm, struct nlmsg_perm *tab, size_t tabsize)
+{
+	int i, err = -EINVAL;
+
+	for (i = 0; i < tabsize/sizeof(struct nlmsg_perm); i++)
+		if (nlmsg_type == tab[i].nlmsg_type) {
+			*perm = tab[i].perm;
+			err = 0;
+			break;
+		}
+
+	return err;
+}
+
+int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm)
+{
+	int err = 0;
+
+	switch (sclass) {
+	case SECCLASS_NETLINK_ROUTE_SOCKET:
+		err = nlmsg_perm(nlmsg_type, perm, nlmsg_route_perms,
+				 sizeof(nlmsg_route_perms));
+		break;
+
+	case SECCLASS_NETLINK_FIREWALL_SOCKET:
+	case NETLINK_IP6_FW:
+		err = nlmsg_perm(nlmsg_type, perm, nlmsg_firewall_perms,
+				 sizeof(nlmsg_firewall_perms));
+		break;
+
+	case SECCLASS_NETLINK_TCPDIAG_SOCKET:
+		err = nlmsg_perm(nlmsg_type, perm, nlmsg_tcpdiag_perms,
+				 sizeof(nlmsg_tcpdiag_perms));
+		break;
+
+	case SECCLASS_NETLINK_XFRM_SOCKET:
+		err = nlmsg_perm(nlmsg_type, perm, nlmsg_xfrm_perms,
+				 sizeof(nlmsg_xfrm_perms));
+		break;
+
+	case SECCLASS_NETLINK_AUDIT_SOCKET:
+		err = nlmsg_perm(nlmsg_type, perm, nlmsg_audit_perms,
+				 sizeof(nlmsg_audit_perms));
+		break;
+
+	/* No messaging from userspace, or class unknown/unhandled */
+	default:
+		err = -ENOENT;
+		break;
+	}
+
+	return err;
+}