bfff3aa497
This patch changes nlmsgtab.c to fix whitespace and syntax issues. Things that
are fixed may include (does not not have to include)
whitespace at end of lines
spaces followed by tabs
spaces used instead of tabs
spacing around parenthesis
locateion of { around struct and else clauses
location of * in pointer declarations
removal of initialization of static data to keep it in the right section
useless {} in if statemetns
useless checking for NULL before kfree
fixing of the indentation depth of switch statements
and any number of other things I forgot to mention
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
176 lines
6 KiB
C
176 lines
6 KiB
C
/*
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* Netlink message type permission tables, for user generated messages.
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*
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* Author: James Morris <jmorris@redhat.com>
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*
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* Copyright (C) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2,
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* as published by the Free Software Foundation.
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/skbuff.h>
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#include <linux/netlink.h>
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#include <linux/rtnetlink.h>
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#include <linux/if.h>
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#include <linux/netfilter_ipv4/ip_queue.h>
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#include <linux/inet_diag.h>
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#include <linux/xfrm.h>
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#include <linux/audit.h>
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#include "flask.h"
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#include "av_permissions.h"
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struct nlmsg_perm {
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u16 nlmsg_type;
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u32 perm;
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};
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static struct nlmsg_perm nlmsg_route_perms[] =
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{
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{ RTM_NEWLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_DELLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETLINK, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_SETLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_NEWADDR, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_DELADDR, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETADDR, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_NEWROUTE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_DELROUTE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETROUTE, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_NEWNEIGH, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_DELNEIGH, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETNEIGH, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_NEWRULE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_DELRULE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETRULE, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_NEWQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_DELQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETQDISC, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_NEWTCLASS, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_DELTCLASS, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETTCLASS, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_NEWTFILTER, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_DELTFILTER, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETTFILTER, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_NEWACTION, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_DELACTION, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETACTION, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_NEWPREFIX, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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{ RTM_GETMULTICAST, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_GETANYCAST, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_GETNEIGHTBL, NETLINK_ROUTE_SOCKET__NLMSG_READ },
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{ RTM_SETNEIGHTBL, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
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};
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static struct nlmsg_perm nlmsg_firewall_perms[] =
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{
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{ IPQM_MODE, NETLINK_FIREWALL_SOCKET__NLMSG_WRITE },
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{ IPQM_VERDICT, NETLINK_FIREWALL_SOCKET__NLMSG_WRITE },
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};
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static struct nlmsg_perm nlmsg_tcpdiag_perms[] =
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{
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{ TCPDIAG_GETSOCK, NETLINK_TCPDIAG_SOCKET__NLMSG_READ },
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{ DCCPDIAG_GETSOCK, NETLINK_TCPDIAG_SOCKET__NLMSG_READ },
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};
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static struct nlmsg_perm nlmsg_xfrm_perms[] =
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{
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{ XFRM_MSG_NEWSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_DELSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_GETSA, NETLINK_XFRM_SOCKET__NLMSG_READ },
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{ XFRM_MSG_NEWPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_DELPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_GETPOLICY, NETLINK_XFRM_SOCKET__NLMSG_READ },
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{ XFRM_MSG_ALLOCSPI, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_ACQUIRE, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_EXPIRE, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_UPDPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_UPDSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_POLEXPIRE, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_FLUSHSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_FLUSHPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_NEWAE, NETLINK_XFRM_SOCKET__NLMSG_WRITE },
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{ XFRM_MSG_GETAE, NETLINK_XFRM_SOCKET__NLMSG_READ },
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};
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static struct nlmsg_perm nlmsg_audit_perms[] =
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{
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{ AUDIT_GET, NETLINK_AUDIT_SOCKET__NLMSG_READ },
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{ AUDIT_SET, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
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{ AUDIT_LIST, NETLINK_AUDIT_SOCKET__NLMSG_READPRIV },
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{ AUDIT_ADD, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
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{ AUDIT_DEL, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
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{ AUDIT_LIST_RULES, NETLINK_AUDIT_SOCKET__NLMSG_READPRIV },
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{ AUDIT_ADD_RULE, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
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{ AUDIT_DEL_RULE, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
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{ AUDIT_USER, NETLINK_AUDIT_SOCKET__NLMSG_RELAY },
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{ AUDIT_SIGNAL_INFO, NETLINK_AUDIT_SOCKET__NLMSG_READ },
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{ AUDIT_TTY_GET, NETLINK_AUDIT_SOCKET__NLMSG_READ },
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{ AUDIT_TTY_SET, NETLINK_AUDIT_SOCKET__NLMSG_WRITE },
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};
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static int nlmsg_perm(u16 nlmsg_type, u32 *perm, struct nlmsg_perm *tab, size_t tabsize)
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{
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int i, err = -EINVAL;
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for (i = 0; i < tabsize/sizeof(struct nlmsg_perm); i++)
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if (nlmsg_type == tab[i].nlmsg_type) {
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*perm = tab[i].perm;
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err = 0;
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break;
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}
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return err;
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}
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int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm)
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{
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int err = 0;
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switch (sclass) {
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case SECCLASS_NETLINK_ROUTE_SOCKET:
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err = nlmsg_perm(nlmsg_type, perm, nlmsg_route_perms,
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sizeof(nlmsg_route_perms));
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break;
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case SECCLASS_NETLINK_FIREWALL_SOCKET:
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case SECCLASS_NETLINK_IP6FW_SOCKET:
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err = nlmsg_perm(nlmsg_type, perm, nlmsg_firewall_perms,
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sizeof(nlmsg_firewall_perms));
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break;
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case SECCLASS_NETLINK_TCPDIAG_SOCKET:
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err = nlmsg_perm(nlmsg_type, perm, nlmsg_tcpdiag_perms,
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sizeof(nlmsg_tcpdiag_perms));
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break;
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case SECCLASS_NETLINK_XFRM_SOCKET:
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err = nlmsg_perm(nlmsg_type, perm, nlmsg_xfrm_perms,
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sizeof(nlmsg_xfrm_perms));
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break;
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case SECCLASS_NETLINK_AUDIT_SOCKET:
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if ((nlmsg_type >= AUDIT_FIRST_USER_MSG &&
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nlmsg_type <= AUDIT_LAST_USER_MSG) ||
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(nlmsg_type >= AUDIT_FIRST_USER_MSG2 &&
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nlmsg_type <= AUDIT_LAST_USER_MSG2)) {
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*perm = NETLINK_AUDIT_SOCKET__NLMSG_RELAY;
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} else {
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err = nlmsg_perm(nlmsg_type, perm, nlmsg_audit_perms,
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sizeof(nlmsg_audit_perms));
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}
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break;
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/* No messaging from userspace, or class unknown/unhandled */
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default:
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err = -ENOENT;
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break;
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}
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return err;
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}
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