nlmsgtab.c revision 6e73d71d8485607c692302d2058894588e3a387f
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Netlink message type permission tables, for user generated messages. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Author: James Morris <jmorris@redhat.com> 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License version 2, 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * as published by the Free Software Foundation. 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/netlink.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/rtnetlink.h> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/if.h> 17216efaaaa006d2f3ecbb5bbc2b6673423813254eJames Morris#include <linux/inet_diag.h> 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/xfrm.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/audit.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "flask.h" 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "av_permissions.h" 236a3fbe81179c85eb53054a0f4c8423ffec0276a7James Morris#include "security.h" 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25bfff3aa49765eb10053b58ee220949cfcc7a1a80Eric Parisstruct nlmsg_perm { 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 nlmsg_type; 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 perm; 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct nlmsg_perm nlmsg_route_perms[] = 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_DELLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETLINK, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_SETLINK, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWADDR, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_DELADDR, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETADDR, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWROUTE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_DELROUTE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETROUTE, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWNEIGH, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_DELNEIGH, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETNEIGH, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWRULE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_DELRULE, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETRULE, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_DELQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETQDISC, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWTCLASS, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_DELTCLASS, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETTCLASS, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWTFILTER, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_DELTFILTER, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETTFILTER, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWACTION, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_DELACTION, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETACTION, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_NEWPREFIX, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETMULTICAST, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { RTM_GETANYCAST, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 63c7fb64db001f83ece669c76a02d8ec2fdb1dd307Thomas Graf { RTM_GETNEIGHTBL, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 64c7fb64db001f83ece669c76a02d8ec2fdb1dd307Thomas Graf { RTM_SETNEIGHTBL, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 652f99db28af90957271a6448479c3e492ccf7c697Michal Schmidt { RTM_NEWADDRLABEL, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 662f99db28af90957271a6448479c3e492ccf7c697Michal Schmidt { RTM_DELADDRLABEL, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 672f99db28af90957271a6448479c3e492ccf7c697Michal Schmidt { RTM_GETADDRLABEL, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 68350e4f31e0eaf56dfc3b328d24a11bdf42a41fb8Eric Paris { RTM_GETDCB, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 69350e4f31e0eaf56dfc3b328d24a11bdf42a41fb8Eric Paris { RTM_SETDCB, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 706e73d71d8485607c692302d2058894588e3a387fCong Wang { RTM_NEWNETCONF, NETLINK_ROUTE_SOCKET__NLMSG_WRITE }, 716e73d71d8485607c692302d2058894588e3a387fCong Wang { RTM_GETNETCONF, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 72ee07c6e7a6f8a25c18f0a6b18152fbd7499245f6Cong Wang { RTM_GETMDB, NETLINK_ROUTE_SOCKET__NLMSG_READ }, 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct nlmsg_perm nlmsg_tcpdiag_perms[] = 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { TCPDIAG_GETSOCK, NETLINK_TCPDIAG_SOCKET__NLMSG_READ }, 78216efaaaa006d2f3ecbb5bbc2b6673423813254eJames Morris { DCCPDIAG_GETSOCK, NETLINK_TCPDIAG_SOCKET__NLMSG_READ }, 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct nlmsg_perm nlmsg_xfrm_perms[] = 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { XFRM_MSG_NEWSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { XFRM_MSG_DELSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { XFRM_MSG_GETSA, NETLINK_XFRM_SOCKET__NLMSG_READ }, 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { XFRM_MSG_NEWPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { XFRM_MSG_DELPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { XFRM_MSG_GETPOLICY, NETLINK_XFRM_SOCKET__NLMSG_READ }, 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { XFRM_MSG_ALLOCSPI, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 908c29bfe1cfbe6050c797a6364a0cc0ff57c377fcJamal Hadi Salim { XFRM_MSG_ACQUIRE, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 918c29bfe1cfbe6050c797a6364a0cc0ff57c377fcJamal Hadi Salim { XFRM_MSG_EXPIRE, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { XFRM_MSG_UPDPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { XFRM_MSG_UPDSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 948c29bfe1cfbe6050c797a6364a0cc0ff57c377fcJamal Hadi Salim { XFRM_MSG_POLEXPIRE, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 958c29bfe1cfbe6050c797a6364a0cc0ff57c377fcJamal Hadi Salim { XFRM_MSG_FLUSHSA, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 968c29bfe1cfbe6050c797a6364a0cc0ff57c377fcJamal Hadi Salim { XFRM_MSG_FLUSHPOLICY, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 978c29bfe1cfbe6050c797a6364a0cc0ff57c377fcJamal Hadi Salim { XFRM_MSG_NEWAE, NETLINK_XFRM_SOCKET__NLMSG_WRITE }, 988c29bfe1cfbe6050c797a6364a0cc0ff57c377fcJamal Hadi Salim { XFRM_MSG_GETAE, NETLINK_XFRM_SOCKET__NLMSG_READ }, 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct nlmsg_perm nlmsg_audit_perms[] = 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 103b207a290ea7dc83dba02e40b81cc8a29415a9c60James Morris { AUDIT_GET, NETLINK_AUDIT_SOCKET__NLMSG_READ }, 104b207a290ea7dc83dba02e40b81cc8a29415a9c60James Morris { AUDIT_SET, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, 105b207a290ea7dc83dba02e40b81cc8a29415a9c60James Morris { AUDIT_LIST, NETLINK_AUDIT_SOCKET__NLMSG_READPRIV }, 106b207a290ea7dc83dba02e40b81cc8a29415a9c60James Morris { AUDIT_ADD, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, 107b207a290ea7dc83dba02e40b81cc8a29415a9c60James Morris { AUDIT_DEL, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, 10893315ed6dd12dacfc941f9eb8ca0293aadf99793Amy Griffis { AUDIT_LIST_RULES, NETLINK_AUDIT_SOCKET__NLMSG_READPRIV }, 10993315ed6dd12dacfc941f9eb8ca0293aadf99793Amy Griffis { AUDIT_ADD_RULE, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, 11093315ed6dd12dacfc941f9eb8ca0293aadf99793Amy Griffis { AUDIT_DEL_RULE, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, 111b207a290ea7dc83dba02e40b81cc8a29415a9c60James Morris { AUDIT_USER, NETLINK_AUDIT_SOCKET__NLMSG_RELAY }, 112c2f0c7c356dc9ae15419f00c725a2fcc58eeff58Steve Grubb { AUDIT_SIGNAL_INFO, NETLINK_AUDIT_SOCKET__NLMSG_READ }, 113850b0cee165576f969363a8c52021b5cf9ecbe67Eric Paris { AUDIT_TRIM, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, 114850b0cee165576f969363a8c52021b5cf9ecbe67Eric Paris { AUDIT_MAKE_EQUIV, NETLINK_AUDIT_SOCKET__NLMSG_WRITE }, 115522ed7767e800cff6c650ec64b0ee0677303119cMiloslav Trmac { AUDIT_TTY_GET, NETLINK_AUDIT_SOCKET__NLMSG_READ }, 116dd34b5d75a0405814a3de83f02a44ac297e81629Eric Paris { AUDIT_TTY_SET, NETLINK_AUDIT_SOCKET__NLMSG_TTY_AUDIT }, 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int nlmsg_perm(u16 nlmsg_type, u32 *perm, struct nlmsg_perm *tab, size_t tabsize) 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, err = -EINVAL; 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < tabsize/sizeof(struct nlmsg_perm); i++) 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (nlmsg_type == tab[i].nlmsg_type) { 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *perm = tab[i].perm; 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = 0; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm) 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err = 0; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (sclass) { 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SECCLASS_NETLINK_ROUTE_SOCKET: 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = nlmsg_perm(nlmsg_type, perm, nlmsg_route_perms, 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(nlmsg_route_perms)); 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SECCLASS_NETLINK_TCPDIAG_SOCKET: 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = nlmsg_perm(nlmsg_type, perm, nlmsg_tcpdiag_perms, 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(nlmsg_tcpdiag_perms)); 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SECCLASS_NETLINK_XFRM_SOCKET: 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = nlmsg_perm(nlmsg_type, perm, nlmsg_xfrm_perms, 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(nlmsg_xfrm_perms)); 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SECCLASS_NETLINK_AUDIT_SOCKET: 15590d526c074ae5db484388da56c399acf892b6c17Steve Grubb if ((nlmsg_type >= AUDIT_FIRST_USER_MSG && 15690d526c074ae5db484388da56c399acf892b6c17Steve Grubb nlmsg_type <= AUDIT_LAST_USER_MSG) || 15790d526c074ae5db484388da56c399acf892b6c17Steve Grubb (nlmsg_type >= AUDIT_FIRST_USER_MSG2 && 158bfff3aa49765eb10053b58ee220949cfcc7a1a80Eric Paris nlmsg_type <= AUDIT_LAST_USER_MSG2)) { 159209aba03243ee42a22f8df8d08aa9963f62aec64David Woodhouse *perm = NETLINK_AUDIT_SOCKET__NLMSG_RELAY; 160209aba03243ee42a22f8df8d08aa9963f62aec64David Woodhouse } else { 161209aba03243ee42a22f8df8d08aa9963f62aec64David Woodhouse err = nlmsg_perm(nlmsg_type, perm, nlmsg_audit_perms, 162209aba03243ee42a22f8df8d08aa9963f62aec64David Woodhouse sizeof(nlmsg_audit_perms)); 163209aba03243ee42a22f8df8d08aa9963f62aec64David Woodhouse } 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* No messaging from userspace, or class unknown/unhandled */ 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -ENOENT; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 174