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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/security/selinux/nlmsgtab.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/security/selinux/nlmsgtab.c')
-rw-r--r-- | kernel/security/selinux/nlmsgtab.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/kernel/security/selinux/nlmsgtab.c b/kernel/security/selinux/nlmsgtab.c new file mode 100644 index 000000000..2bbb41822 --- /dev/null +++ b/kernel/security/selinux/nlmsgtab.c @@ -0,0 +1,192 @@ +/* + * 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/netlink.h> +#include <linux/rtnetlink.h> +#include <linux/if.h> +#include <linux/inet_diag.h> +#include <linux/xfrm.h> +#include <linux/audit.h> +#include <linux/sock_diag.h> + +#include "flask.h" +#include "av_permissions.h" +#include "security.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_GETMULTICAST, NETLINK_ROUTE_SOCKET__NLMSG_READ }, + { RTM_GETANYCAST, NETLINK_ROUTE_SOCKET__NLMSG_READ }, + { RTM_GETNEIGHTBL, NETLINK_ROUTE_SOCKET__NLMSG_READ }, + { RTM_SETNEIGHTBL, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, + { RTM_NEWADDRLABEL, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, + { RTM_DELADDRLABEL, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, + { RTM_GETADDRLABEL, NETLINK_ROUTE_SOCKET__NLMSG_READ }, + { RTM_GETDCB, NETLINK_ROUTE_SOCKET__NLMSG_READ }, + { RTM_SETDCB, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, + { RTM_NEWNETCONF, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, + { RTM_GETNETCONF, NETLINK_ROUTE_SOCKET__NLMSG_READ }, + { RTM_NEWMDB, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, + { RTM_DELMDB, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, + { RTM_GETMDB, NETLINK_ROUTE_SOCKET__NLMSG_READ }, + { RTM_NEWNSID, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, + { RTM_DELNSID, NETLINK_ROUTE_SOCKET__NLMSG_READ }, + { RTM_GETNSID, NETLINK_ROUTE_SOCKET__NLMSG_READ }, +}; + +static struct nlmsg_perm nlmsg_tcpdiag_perms[] = +{ + { TCPDIAG_GETSOCK, NETLINK_TCPDIAG_SOCKET__NLMSG_READ }, + { DCCPDIAG_GETSOCK, NETLINK_TCPDIAG_SOCKET__NLMSG_READ }, + { SOCK_DIAG_BY_FAMILY, 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_ACQUIRE, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_EXPIRE, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_UPDPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_UPDSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_POLEXPIRE, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_FLUSHSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_FLUSHPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_NEWAE, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_GETAE, NETLINK_XFRM_SOCKET__NLMSG_READ }, + { XFRM_MSG_REPORT, NETLINK_XFRM_SOCKET__NLMSG_READ }, + { XFRM_MSG_MIGRATE, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_NEWSADINFO, NETLINK_XFRM_SOCKET__NLMSG_READ }, + { XFRM_MSG_GETSADINFO, NETLINK_XFRM_SOCKET__NLMSG_READ }, + { XFRM_MSG_NEWSPDINFO, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, + { XFRM_MSG_GETSPDINFO, NETLINK_XFRM_SOCKET__NLMSG_READ }, + { XFRM_MSG_MAPPING, NETLINK_XFRM_SOCKET__NLMSG_READ }, +}; + +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_READPRIV }, + { AUDIT_ADD, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, + { AUDIT_DEL, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, + { AUDIT_LIST_RULES, NETLINK_AUDIT_SOCKET__NLMSG_READPRIV }, + { AUDIT_ADD_RULE, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, + { AUDIT_DEL_RULE, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, + { AUDIT_USER, NETLINK_AUDIT_SOCKET__NLMSG_RELAY }, + { AUDIT_SIGNAL_INFO, NETLINK_AUDIT_SOCKET__NLMSG_READ }, + { AUDIT_TRIM, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, + { AUDIT_MAKE_EQUIV, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, + { AUDIT_TTY_GET, NETLINK_AUDIT_SOCKET__NLMSG_READ }, + { AUDIT_TTY_SET, NETLINK_AUDIT_SOCKET__NLMSG_TTY_AUDIT }, + { AUDIT_GET_FEATURE, NETLINK_AUDIT_SOCKET__NLMSG_READ }, + { AUDIT_SET_FEATURE, 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: + /* RTM_MAX always point to RTM_SETxxxx, ie RTM_NEWxxx + 3 */ + BUILD_BUG_ON(RTM_MAX != (RTM_NEWNSID + 3)); + err = nlmsg_perm(nlmsg_type, perm, nlmsg_route_perms, + sizeof(nlmsg_route_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: + BUILD_BUG_ON(XFRM_MSG_MAX != XFRM_MSG_MAPPING); + err = nlmsg_perm(nlmsg_type, perm, nlmsg_xfrm_perms, + sizeof(nlmsg_xfrm_perms)); + break; + + case SECCLASS_NETLINK_AUDIT_SOCKET: + if ((nlmsg_type >= AUDIT_FIRST_USER_MSG && + nlmsg_type <= AUDIT_LAST_USER_MSG) || + (nlmsg_type >= AUDIT_FIRST_USER_MSG2 && + nlmsg_type <= AUDIT_LAST_USER_MSG2)) { + *perm = NETLINK_AUDIT_SOCKET__NLMSG_RELAY; + } else { + 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; +} |