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 00000000000..fa7fa030e6e
--- /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;
+}