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-rw-r--r--security/selinux/avc.c76
-rw-r--r--security/selinux/include/av_inherit.h34
-rw-r--r--security/selinux/include/av_perm_to_string.h183
-rw-r--r--security/selinux/include/av_permissions.h44
-rw-r--r--security/selinux/include/avc_ss.h21
-rw-r--r--security/selinux/include/class_to_string.h80
-rw-r--r--security/selinux/include/classmap.h150
-rw-r--r--security/selinux/include/common_perm_to_string.h58
-rw-r--r--security/selinux/include/flask.h40
-rw-r--r--security/selinux/include/security.h13
-rw-r--r--security/selinux/selinuxfs.c4
-rw-r--r--security/selinux/ss/mls.c2
-rw-r--r--security/selinux/ss/policydb.c47
-rw-r--r--security/selinux/ss/policydb.h7
-rw-r--r--security/selinux/ss/services.c540
15 files changed, 555 insertions, 744 deletions
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index b4b5da1c0a42..18f4103e02b7 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -31,43 +31,7 @@
#include <net/ipv6.h>
#include "avc.h"
#include "avc_ss.h"
-
-static const struct av_perm_to_string av_perm_to_string[] = {
-#define S_(c, v, s) { c, v, s },
-#include "av_perm_to_string.h"
-#undef S_
-};
-
-static const char *class_to_string[] = {
-#define S_(s) s,
-#include "class_to_string.h"
-#undef S_
-};
-
-#define TB_(s) static const char *s[] = {
-#define TE_(s) };
-#define S_(s) s,
-#include "common_perm_to_string.h"
-#undef TB_
-#undef TE_
-#undef S_
-
-static const struct av_inherit av_inherit[] = {
-#define S_(c, i, b) { .tclass = c,\
- .common_pts = common_##i##_perm_to_string,\
- .common_base = b },
-#include "av_inherit.h"
-#undef S_
-};
-
-const struct selinux_class_perm selinux_class_perm = {
- .av_perm_to_string = av_perm_to_string,
- .av_pts_len = ARRAY_SIZE(av_perm_to_string),
- .class_to_string = class_to_string,
- .cts_len = ARRAY_SIZE(class_to_string),
- .av_inherit = av_inherit,
- .av_inherit_len = ARRAY_SIZE(av_inherit)
-};
+#include "classmap.h"
#define AVC_CACHE_SLOTS 512
#define AVC_DEF_CACHE_THRESHOLD 512
@@ -139,52 +103,28 @@ static inline int avc_hash(u32 ssid, u32 tsid, u16 tclass)
*/
static void avc_dump_av(struct audit_buffer *ab, u16 tclass, u32 av)
{
- const char **common_pts = NULL;
- u32 common_base = 0;
- int i, i2, perm;
+ const char **perms;
+ int i, perm;
if (av == 0) {
audit_log_format(ab, " null");
return;
}
- for (i = 0; i < ARRAY_SIZE(av_inherit); i++) {
- if (av_inherit[i].tclass == tclass) {
- common_pts = av_inherit[i].common_pts;
- common_base = av_inherit[i].common_base;
- break;
- }
- }
+ perms = secclass_map[tclass-1].perms;
audit_log_format(ab, " {");
i = 0;
perm = 1;
- while (perm < common_base) {
+ while (i < (sizeof(av) * 8)) {
if (perm & av) {
- audit_log_format(ab, " %s", common_pts[i]);
+ audit_log_format(ab, " %s", perms[i]);
av &= ~perm;
}
i++;
perm <<= 1;
}
- while (i < sizeof(av) * 8) {
- if (perm & av) {
- for (i2 = 0; i2 < ARRAY_SIZE(av_perm_to_string); i2++) {
- if ((av_perm_to_string[i2].tclass == tclass) &&
- (av_perm_to_string[i2].value == perm))
- break;
- }
- if (i2 < ARRAY_SIZE(av_perm_to_string)) {
- audit_log_format(ab, " %s",
- av_perm_to_string[i2].name);
- av &= ~perm;
- }
- }
- i++;
- perm <<= 1;
- }
-
if (av)
audit_log_format(ab, " 0x%x", av);
@@ -219,8 +159,8 @@ static void avc_dump_query(struct audit_buffer *ab, u32 ssid, u32 tsid, u16 tcla
kfree(scontext);
}
- BUG_ON(tclass >= ARRAY_SIZE(class_to_string) || !class_to_string[tclass]);
- audit_log_format(ab, " tclass=%s", class_to_string[tclass]);
+ BUG_ON(tclass >= ARRAY_SIZE(secclass_map));
+ audit_log_format(ab, " tclass=%s", secclass_map[tclass-1].name);
}
/**
diff --git a/security/selinux/include/av_inherit.h b/security/selinux/include/av_inherit.h
deleted file mode 100644
index abedcd704dae..000000000000
--- a/security/selinux/include/av_inherit.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* This file is automatically generated. Do not edit. */
- S_(SECCLASS_DIR, file, 0x00020000UL)
- S_(SECCLASS_FILE, file, 0x00020000UL)
- S_(SECCLASS_LNK_FILE, file, 0x00020000UL)
- S_(SECCLASS_CHR_FILE, file, 0x00020000UL)
- S_(SECCLASS_BLK_FILE, file, 0x00020000UL)
- S_(SECCLASS_SOCK_FILE, file, 0x00020000UL)
- S_(SECCLASS_FIFO_FILE, file, 0x00020000UL)
- S_(SECCLASS_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_TCP_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_UDP_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_RAWIP_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_PACKET_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_KEY_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_UNIX_STREAM_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_UNIX_DGRAM_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_TUN_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_IPC, ipc, 0x00000200UL)
- S_(SECCLASS_SEM, ipc, 0x00000200UL)
- S_(SECCLASS_MSGQ, ipc, 0x00000200UL)
- S_(SECCLASS_SHM, ipc, 0x00000200UL)
- S_(SECCLASS_NETLINK_ROUTE_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_FIREWALL_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_TCPDIAG_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_NFLOG_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_XFRM_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_SELINUX_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_AUDIT_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_IP6FW_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_DNRT_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_NETLINK_KOBJECT_UEVENT_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_APPLETALK_SOCKET, socket, 0x00400000UL)
- S_(SECCLASS_DCCP_SOCKET, socket, 0x00400000UL)
diff --git a/security/selinux/include/av_perm_to_string.h b/security/selinux/include/av_perm_to_string.h
deleted file mode 100644
index 2b683ad83d21..000000000000
--- a/security/selinux/include/av_perm_to_string.h
+++ /dev/null
@@ -1,183 +0,0 @@
-/* This file is automatically generated. Do not edit. */
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__MOUNT, "mount")
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__REMOUNT, "remount")
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__UNMOUNT, "unmount")
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__GETATTR, "getattr")
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__RELABELFROM, "relabelfrom")
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__RELABELTO, "relabelto")
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__TRANSITION, "transition")
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__ASSOCIATE, "associate")
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__QUOTAMOD, "quotamod")
- S_(SECCLASS_FILESYSTEM, FILESYSTEM__QUOTAGET, "quotaget")
- S_(SECCLASS_DIR, DIR__ADD_NAME, "add_name")
- S_(SECCLASS_DIR, DIR__REMOVE_NAME, "remove_name")
- S_(SECCLASS_DIR, DIR__REPARENT, "reparent")
- S_(SECCLASS_DIR, DIR__SEARCH, "search")
- S_(SECCLASS_DIR, DIR__RMDIR, "rmdir")
- S_(SECCLASS_DIR, DIR__OPEN, "open")
- S_(SECCLASS_FILE, FILE__EXECUTE_NO_TRANS, "execute_no_trans")
- S_(SECCLASS_FILE, FILE__ENTRYPOINT, "entrypoint")
- S_(SECCLASS_FILE, FILE__EXECMOD, "execmod")
- S_(SECCLASS_FILE, FILE__OPEN, "open")
- S_(SECCLASS_CHR_FILE, CHR_FILE__EXECUTE_NO_TRANS, "execute_no_trans")
- S_(SECCLASS_CHR_FILE, CHR_FILE__ENTRYPOINT, "entrypoint")
- S_(SECCLASS_CHR_FILE, CHR_FILE__EXECMOD, "execmod")
- S_(SECCLASS_CHR_FILE, CHR_FILE__OPEN, "open")
- S_(SECCLASS_BLK_FILE, BLK_FILE__OPEN, "open")
- S_(SECCLASS_SOCK_FILE, SOCK_FILE__OPEN, "open")
- S_(SECCLASS_FIFO_FILE, FIFO_FILE__OPEN, "open")
- S_(SECCLASS_FD, FD__USE, "use")
- S_(SECCLASS_TCP_SOCKET, TCP_SOCKET__CONNECTTO, "connectto")
- S_(SECCLASS_TCP_SOCKET, TCP_SOCKET__NEWCONN, "newconn")
- S_(SECCLASS_TCP_SOCKET, TCP_SOCKET__ACCEPTFROM, "acceptfrom")
- S_(SECCLASS_TCP_SOCKET, TCP_SOCKET__NODE_BIND, "node_bind")
- S_(SECCLASS_TCP_SOCKET, TCP_SOCKET__NAME_CONNECT, "name_connect")
- S_(SECCLASS_UDP_SOCKET, UDP_SOCKET__NODE_BIND, "node_bind")
- S_(SECCLASS_RAWIP_SOCKET, RAWIP_SOCKET__NODE_BIND, "node_bind")
- S_(SECCLASS_NODE, NODE__TCP_RECV, "tcp_recv")
- S_(SECCLASS_NODE, NODE__TCP_SEND, "tcp_send")
- S_(SECCLASS_NODE, NODE__UDP_RECV, "udp_recv")
- S_(SECCLASS_NODE, NODE__UDP_SEND, "udp_send")
- S_(SECCLASS_NODE, NODE__RAWIP_RECV, "rawip_recv")
- S_(SECCLASS_NODE, NODE__RAWIP_SEND, "rawip_send")
- S_(SECCLASS_NODE, NODE__ENFORCE_DEST, "enforce_dest")
- S_(SECCLASS_NODE, NODE__DCCP_RECV, "dccp_recv")
- S_(SECCLASS_NODE, NODE__DCCP_SEND, "dccp_send")
- S_(SECCLASS_NODE, NODE__RECVFROM, "recvfrom")
- S_(SECCLASS_NODE, NODE__SENDTO, "sendto")
- S_(SECCLASS_NETIF, NETIF__TCP_RECV, "tcp_recv")
- S_(SECCLASS_NETIF, NETIF__TCP_SEND, "tcp_send")
- S_(SECCLASS_NETIF, NETIF__UDP_RECV, "udp_recv")
- S_(SECCLASS_NETIF, NETIF__UDP_SEND, "udp_send")
- S_(SECCLASS_NETIF, NETIF__RAWIP_RECV, "rawip_recv")
- S_(SECCLASS_NETIF, NETIF__RAWIP_SEND, "rawip_send")
- S_(SECCLASS_NETIF, NETIF__DCCP_RECV, "dccp_recv")
- S_(SECCLASS_NETIF, NETIF__DCCP_SEND, "dccp_send")
- S_(SECCLASS_NETIF, NETIF__INGRESS, "ingress")
- S_(SECCLASS_NETIF, NETIF__EGRESS, "egress")
- S_(SECCLASS_UNIX_STREAM_SOCKET, UNIX_STREAM_SOCKET__CONNECTTO, "connectto")
- S_(SECCLASS_UNIX_STREAM_SOCKET, UNIX_STREAM_SOCKET__NEWCONN, "newconn")
- S_(SECCLASS_UNIX_STREAM_SOCKET, UNIX_STREAM_SOCKET__ACCEPTFROM, "acceptfrom")
- S_(SECCLASS_PROCESS, PROCESS__FORK, "fork")
- S_(SECCLASS_PROCESS, PROCESS__TRANSITION, "transition")
- S_(SECCLASS_PROCESS, PROCESS__SIGCHLD, "sigchld")
- S_(SECCLASS_PROCESS, PROCESS__SIGKILL, "sigkill")
- S_(SECCLASS_PROCESS, PROCESS__SIGSTOP, "sigstop")
- S_(SECCLASS_PROCESS, PROCESS__SIGNULL, "signull")
- S_(SECCLASS_PROCESS, PROCESS__SIGNAL, "signal")
- S_(SECCLASS_PROCESS, PROCESS__PTRACE, "ptrace")
- S_(SECCLASS_PROCESS, PROCESS__GETSCHED, "getsched")
- S_(SECCLASS_PROCESS, PROCESS__SETSCHED, "setsched")
- S_(SECCLASS_PROCESS, PROCESS__GETSESSION, "getsession")
- S_(SECCLASS_PROCESS, PROCESS__GETPGID, "getpgid")
- S_(SECCLASS_PROCESS, PROCESS__SETPGID, "setpgid")
- S_(SECCLASS_PROCESS, PROCESS__GETCAP, "getcap")
- S_(SECCLASS_PROCESS, PROCESS__SETCAP, "setcap")
- S_(SECCLASS_PROCESS, PROCESS__SHARE, "share")
- S_(SECCLASS_PROCESS, PROCESS__GETATTR, "getattr")
- S_(SECCLASS_PROCESS, PROCESS__SETEXEC, "setexec")
- S_(SECCLASS_PROCESS, PROCESS__SETFSCREATE, "setfscreate")
- S_(SECCLASS_PROCESS, PROCESS__NOATSECURE, "noatsecure")
- S_(SECCLASS_PROCESS, PROCESS__SIGINH, "siginh")
- S_(SECCLASS_PROCESS, PROCESS__SETRLIMIT, "setrlimit")
- S_(SECCLASS_PROCESS, PROCESS__RLIMITINH, "rlimitinh")
- S_(SECCLASS_PROCESS, PROCESS__DYNTRANSITION, "dyntransition")
- S_(SECCLASS_PROCESS, PROCESS__SETCURRENT, "setcurrent")
- S_(SECCLASS_PROCESS, PROCESS__EXECMEM, "execmem")
- S_(SECCLASS_PROCESS, PROCESS__EXECSTACK, "execstack")
- S_(SECCLASS_PROCESS, PROCESS__EXECHEAP, "execheap")
- S_(SECCLASS_PROCESS, PROCESS__SETKEYCREATE, "setkeycreate")
- S_(SECCLASS_PROCESS, PROCESS__SETSOCKCREATE, "setsockcreate")
- S_(SECCLASS_MSGQ, MSGQ__ENQUEUE, "enqueue")
- S_(SECCLASS_MSG, MSG__SEND, "send")
- S_(SECCLASS_MSG, MSG__RECEIVE, "receive")
- S_(SECCLASS_SHM, SHM__LOCK, "lock")
- S_(SECCLASS_SECURITY, SECURITY__COMPUTE_AV, "compute_av")
- S_(SECCLASS_SECURITY, SECURITY__COMPUTE_CREATE, "compute_create")
- S_(SECCLASS_SECURITY, SECURITY__COMPUTE_MEMBER, "compute_member")
- S_(SECCLASS_SECURITY, SECURITY__CHECK_CONTEXT, "check_context")
- S_(SECCLASS_SECURITY, SECURITY__LOAD_POLICY, "load_policy")
- S_(SECCLASS_SECURITY, SECURITY__COMPUTE_RELABEL, "compute_relabel")
- S_(SECCLASS_SECURITY, SECURITY__COMPUTE_USER, "compute_user")
- S_(SECCLASS_SECURITY, SECURITY__SETENFORCE, "setenforce")
- S_(SECCLASS_SECURITY, SECURITY__SETBOOL, "setbool")
- S_(SECCLASS_SECURITY, SECURITY__SETSECPARAM, "setsecparam")
- S_(SECCLASS_SECURITY, SECURITY__SETCHECKREQPROT, "setcheckreqprot")
- S_(SECCLASS_SYSTEM, SYSTEM__IPC_INFO, "ipc_info")
- S_(SECCLASS_SYSTEM, SYSTEM__SYSLOG_READ, "syslog_read")
- S_(SECCLASS_SYSTEM, SYSTEM__SYSLOG_MOD, "syslog_mod")
- S_(SECCLASS_SYSTEM, SYSTEM__SYSLOG_CONSOLE, "syslog_console")
- S_(SECCLASS_SYSTEM, SYSTEM__MODULE_REQUEST, "module_request")
- S_(SECCLASS_CAPABILITY, CAPABILITY__CHOWN, "chown")
- S_(SECCLASS_CAPABILITY, CAPABILITY__DAC_OVERRIDE, "dac_override")
- S_(SECCLASS_CAPABILITY, CAPABILITY__DAC_READ_SEARCH, "dac_read_search")
- S_(SECCLASS_CAPABILITY, CAPABILITY__FOWNER, "fowner")
- S_(SECCLASS_CAPABILITY, CAPABILITY__FSETID, "fsetid")
- S_(SECCLASS_CAPABILITY, CAPABILITY__KILL, "kill")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SETGID, "setgid")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SETUID, "setuid")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SETPCAP, "setpcap")
- S_(SECCLASS_CAPABILITY, CAPABILITY__LINUX_IMMUTABLE, "linux_immutable")
- S_(SECCLASS_CAPABILITY, CAPABILITY__NET_BIND_SERVICE, "net_bind_service")
- S_(SECCLASS_CAPABILITY, CAPABILITY__NET_BROADCAST, "net_broadcast")
- S_(SECCLASS_CAPABILITY, CAPABILITY__NET_ADMIN, "net_admin")
- S_(SECCLASS_CAPABILITY, CAPABILITY__NET_RAW, "net_raw")
- S_(SECCLASS_CAPABILITY, CAPABILITY__IPC_LOCK, "ipc_lock")
- S_(SECCLASS_CAPABILITY, CAPABILITY__IPC_OWNER, "ipc_owner")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_MODULE, "sys_module")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_RAWIO, "sys_rawio")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_CHROOT, "sys_chroot")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_PTRACE, "sys_ptrace")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_PACCT, "sys_pacct")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_ADMIN, "sys_admin")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_BOOT, "sys_boot")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_NICE, "sys_nice")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_RESOURCE, "sys_resource")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_TIME, "sys_time")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SYS_TTY_CONFIG, "sys_tty_config")
- S_(SECCLASS_CAPABILITY, CAPABILITY__MKNOD, "mknod")
- S_(SECCLASS_CAPABILITY, CAPABILITY__LEASE, "lease")
- S_(SECCLASS_CAPABILITY, CAPABILITY__AUDIT_WRITE, "audit_write")
- S_(SECCLASS_CAPABILITY, CAPABILITY__AUDIT_CONTROL, "audit_control")
- S_(SECCLASS_CAPABILITY, CAPABILITY__SETFCAP, "setfcap")
- S_(SECCLASS_CAPABILITY2, CAPABILITY2__MAC_OVERRIDE, "mac_override")
- S_(SECCLASS_CAPABILITY2, CAPABILITY2__MAC_ADMIN, "mac_admin")
- S_(SECCLASS_NETLINK_ROUTE_SOCKET, NETLINK_ROUTE_SOCKET__NLMSG_READ, "nlmsg_read")
- S_(SECCLASS_NETLINK_ROUTE_SOCKET, NETLINK_ROUTE_SOCKET__NLMSG_WRITE, "nlmsg_write")
- S_(SECCLASS_NETLINK_FIREWALL_SOCKET, NETLINK_FIREWALL_SOCKET__NLMSG_READ, "nlmsg_read")
- S_(SECCLASS_NETLINK_FIREWALL_SOCKET, NETLINK_FIREWALL_SOCKET__NLMSG_WRITE, "nlmsg_write")
- S_(SECCLASS_NETLINK_TCPDIAG_SOCKET, NETLINK_TCPDIAG_SOCKET__NLMSG_READ, "nlmsg_read")
- S_(SECCLASS_NETLINK_TCPDIAG_SOCKET, NETLINK_TCPDIAG_SOCKET__NLMSG_WRITE, "nlmsg_write")
- S_(SECCLASS_NETLINK_XFRM_SOCKET, NETLINK_XFRM_SOCKET__NLMSG_READ, "nlmsg_read")
- S_(SECCLASS_NETLINK_XFRM_SOCKET, NETLINK_XFRM_SOCKET__NLMSG_WRITE, "nlmsg_write")
- S_(SECCLASS_NETLINK_AUDIT_SOCKET, NETLINK_AUDIT_SOCKET__NLMSG_READ, "nlmsg_read")
- S_(SECCLASS_NETLINK_AUDIT_SOCKET, NETLINK_AUDIT_SOCKET__NLMSG_WRITE, "nlmsg_write")
- S_(SECCLASS_NETLINK_AUDIT_SOCKET, NETLINK_AUDIT_SOCKET__NLMSG_RELAY, "nlmsg_relay")
- S_(SECCLASS_NETLINK_AUDIT_SOCKET, NETLINK_AUDIT_SOCKET__NLMSG_READPRIV, "nlmsg_readpriv")
- S_(SECCLASS_NETLINK_AUDIT_SOCKET, NETLINK_AUDIT_SOCKET__NLMSG_TTY_AUDIT, "nlmsg_tty_audit")
- S_(SECCLASS_NETLINK_IP6FW_SOCKET, NETLINK_IP6FW_SOCKET__NLMSG_READ, "nlmsg_read")
- S_(SECCLASS_NETLINK_IP6FW_SOCKET, NETLINK_IP6FW_SOCKET__NLMSG_WRITE, "nlmsg_write")
- S_(SECCLASS_ASSOCIATION, ASSOCIATION__SENDTO, "sendto")
- S_(SECCLASS_ASSOCIATION, ASSOCIATION__RECVFROM, "recvfrom")
- S_(SECCLASS_ASSOCIATION, ASSOCIATION__SETCONTEXT, "setcontext")
- S_(SECCLASS_ASSOCIATION, ASSOCIATION__POLMATCH, "polmatch")
- S_(SECCLASS_PACKET, PACKET__SEND, "send")
- S_(SECCLASS_PACKET, PACKET__RECV, "recv")
- S_(SECCLASS_PACKET, PACKET__RELABELTO, "relabelto")
- S_(SECCLASS_PACKET, PACKET__FLOW_IN, "flow_in")
- S_(SECCLASS_PACKET, PACKET__FLOW_OUT, "flow_out")
- S_(SECCLASS_PACKET, PACKET__FORWARD_IN, "forward_in")
- S_(SECCLASS_PACKET, PACKET__FORWARD_OUT, "forward_out")
- S_(SECCLASS_KEY, KEY__VIEW, "view")
- S_(SECCLASS_KEY, KEY__READ, "read")
- S_(SECCLASS_KEY, KEY__WRITE, "write")
- S_(SECCLASS_KEY, KEY__SEARCH, "search")
- S_(SECCLASS_KEY, KEY__LINK, "link")
- S_(SECCLASS_KEY, KEY__SETATTR, "setattr")
- S_(SECCLASS_KEY, KEY__CREATE, "create")
- S_(SECCLASS_DCCP_SOCKET, DCCP_SOCKET__NODE_BIND, "node_bind")
- S_(SECCLASS_DCCP_SOCKET, DCCP_SOCKET__NAME_CONNECT, "name_connect")
- S_(SECCLASS_MEMPROTECT, MEMPROTECT__MMAP_ZERO, "mmap_zero")
- S_(SECCLASS_PEER, PEER__RECV, "recv")
- S_(SECCLASS_KERNEL_SERVICE, KERNEL_SERVICE__USE_AS_OVERRIDE, "use_as_override")
- S_(SECCLASS_KERNEL_SERVICE, KERNEL_SERVICE__CREATE_FILES_AS, "create_files_as")
diff --git a/security/selinux/include/av_permissions.h b/security/selinux/include/av_permissions.h
index 0546d616ccac..fef2582b734d 100644
--- a/security/selinux/include/av_permissions.h
+++ b/security/selinux/include/av_permissions.h
@@ -423,28 +423,6 @@
#define UNIX_DGRAM_SOCKET__RECV_MSG 0x00080000UL
#define UNIX_DGRAM_SOCKET__SEND_MSG 0x00100000UL
#define UNIX_DGRAM_SOCKET__NAME_BIND 0x00200000UL
-#define TUN_SOCKET__IOCTL 0x00000001UL
-#define TUN_SOCKET__READ 0x00000002UL
-#define TUN_SOCKET__WRITE 0x00000004UL
-#define TUN_SOCKET__CREATE 0x00000008UL
-#define TUN_SOCKET__GETATTR 0x00000010UL
-#define TUN_SOCKET__SETATTR 0x00000020UL
-#define TUN_SOCKET__LOCK 0x00000040UL
-#define TUN_SOCKET__RELABELFROM 0x00000080UL
-#define TUN_SOCKET__RELABELTO 0x00000100UL
-#define TUN_SOCKET__APPEND 0x00000200UL
-#define TUN_SOCKET__BIND 0x00000400UL
-#define TUN_SOCKET__CONNECT 0x00000800UL
-#define TUN_SOCKET__LISTEN 0x00001000UL
-#define TUN_SOCKET__ACCEPT 0x00002000UL
-#define TUN_SOCKET__GETOPT 0x00004000UL
-#define TUN_SOCKET__SETOPT 0x00008000UL
-#define TUN_SOCKET__SHUTDOWN 0x00010000UL
-#define TUN_SOCKET__RECVFROM 0x00020000UL
-#define TUN_SOCKET__SENDTO 0x00040000UL
-#define TUN_SOCKET__RECV_MSG 0x00080000UL
-#define TUN_SOCKET__SEND_MSG 0x00100000UL
-#define TUN_SOCKET__NAME_BIND 0x00200000UL
#define PROCESS__FORK 0x00000001UL
#define PROCESS__TRANSITION 0x00000002UL
#define PROCESS__SIGCHLD 0x00000004UL
@@ -868,3 +846,25 @@
#define PEER__RECV 0x00000001UL
#define KERNEL_SERVICE__USE_AS_OVERRIDE 0x00000001UL
#define KERNEL_SERVICE__CREATE_FILES_AS 0x00000002UL
+#define TUN_SOCKET__IOCTL 0x00000001UL
+#define TUN_SOCKET__READ 0x00000002UL
+#define TUN_SOCKET__WRITE 0x00000004UL
+#define TUN_SOCKET__CREATE 0x00000008UL
+#define TUN_SOCKET__GETATTR 0x00000010UL
+#define TUN_SOCKET__SETATTR 0x00000020UL
+#define TUN_SOCKET__LOCK 0x00000040UL
+#define TUN_SOCKET__RELABELFROM 0x00000080UL
+#define TUN_SOCKET__RELABELTO 0x00000100UL
+#define TUN_SOCKET__APPEND 0x00000200UL
+#define TUN_SOCKET__BIND 0x00000400UL
+#define TUN_SOCKET__CONNECT 0x00000800UL
+#define TUN_SOCKET__LISTEN 0x00001000UL
+#define TUN_SOCKET__ACCEPT 0x00002000UL
+#define TUN_SOCKET__GETOPT 0x00004000UL
+#define TUN_SOCKET__SETOPT 0x00008000UL
+#define TUN_SOCKET__SHUTDOWN 0x00010000UL
+#define TUN_SOCKET__RECVFROM 0x00020000UL
+#define TUN_SOCKET__SENDTO 0x00040000UL
+#define TUN_SOCKET__RECV_MSG 0x00080000UL
+#define TUN_SOCKET__SEND_MSG 0x00100000UL
+#define TUN_SOCKET__NAME_BIND 0x00200000UL
diff --git a/security/selinux/include/avc_ss.h b/security/selinux/include/avc_ss.h
index bb1ec801bdfe..4677aa519b04 100644
--- a/security/selinux/include/avc_ss.h
+++ b/security/selinux/include/avc_ss.h
@@ -10,26 +10,13 @@
int avc_ss_reset(u32 seqno);
-struct av_perm_to_string {
- u16 tclass;
- u32 value;
+/* Class/perm mapping support */
+struct security_class_mapping {
const char *name;
+ const char *perms[sizeof(u32) * 8 + 1];
};
-struct av_inherit {
- const char **common_pts;
- u32 common_base;
- u16 tclass;
-};
-
-struct selinux_class_perm {
- const struct av_perm_to_string *av_perm_to_string;
- u32 av_pts_len;
- u32 cts_len;
- const char **class_to_string;
- const struct av_inherit *av_inherit;
- u32 av_inherit_len;
-};
+extern struct security_class_mapping secclass_map[];
#endif /* _SELINUX_AVC_SS_H_ */
diff --git a/security/selinux/include/class_to_string.h b/security/selinux/include/class_to_string.h
deleted file mode 100644
index 7ab9299bfb6b..000000000000
--- a/security/selinux/include/class_to_string.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/* This file is automatically generated. Do not edit. */
-/*
- * Security object class definitions
- */
- S_(NULL)
- S_("security")
- S_("process")
- S_("system")
- S_("capability")
- S_("filesystem")
- S_("file")
- S_("dir")
- S_("fd")
- S_("lnk_file")
- S_("chr_file")
- S_("blk_file")
- S_("sock_file")
- S_("fifo_file")
- S_("socket")
- S_("tcp_socket")
- S_("udp_socket")
- S_("rawip_socket")
- S_("node")
- S_("netif")
- S_("netlink_socket")
- S_("packet_socket")
- S_("key_socket")
- S_("unix_stream_socket")
- S_("unix_dgram_socket")
- S_("sem")
- S_("msg")
- S_("msgq")
- S_("shm")
- S_("ipc")
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_("netlink_route_socket")
- S_("netlink_firewall_socket")
- S_("netlink_tcpdiag_socket")
- S_("netlink_nflog_socket")
- S_("netlink_xfrm_socket")
- S_("netlink_selinux_socket")
- S_("netlink_audit_socket")
- S_("netlink_ip6fw_socket")
- S_("netlink_dnrt_socket")
- S_(NULL)
- S_(NULL)
- S_("association")
- S_("netlink_kobject_uevent_socket")
- S_("appletalk_socket")
- S_("packet")
- S_("key")
- S_(NULL)
- S_("dccp_socket")
- S_("memprotect")
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_("peer")
- S_("capability2")
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_(NULL)
- S_("kernel_service")
- S_("tun_socket")
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
new file mode 100644
index 000000000000..8b32e959bb2e
--- /dev/null
+++ b/security/selinux/include/classmap.h
@@ -0,0 +1,150 @@
+#define COMMON_FILE_SOCK_PERMS "ioctl", "read", "write", "create", \
+ "getattr", "setattr", "lock", "relabelfrom", "relabelto", "append"
+
+#define COMMON_FILE_PERMS COMMON_FILE_SOCK_PERMS, "unlink", "link", \
+ "rename", "execute", "swapon", "quotaon", "mounton"
+
+#define COMMON_SOCK_PERMS COMMON_FILE_SOCK_PERMS, "bind", "connect", \
+ "listen", "accept", "getopt", "setopt", "shutdown", "recvfrom", \
+ "sendto", "recv_msg", "send_msg", "name_bind"
+
+#define COMMON_IPC_PERMS "create", "destroy", "getattr", "setattr", "read", \
+ "write", "associate", "unix_read", "unix_write"
+
+struct security_class_mapping secclass_map[] = {
+ { "security",
+ { "compute_av", "compute_create", "compute_member",
+ "check_context", "load_policy", "compute_relabel",
+ "compute_user", "setenforce", "setbool", "setsecparam",
+ "setcheckreqprot", NULL } },
+ { "process",
+ { "fork", "transition", "sigchld", "sigkill",
+ "sigstop", "signull", "signal", "ptrace", "getsched", "setsched",
+ "getsession", "getpgid", "setpgid", "getcap", "setcap", "share",
+ "getattr", "setexec", "setfscreate", "noatsecure", "siginh",
+ "setrlimit", "rlimitinh", "dyntransition", "setcurrent",
+ "execmem", "execstack", "execheap", "setkeycreate",
+ "setsockcreate", NULL } },
+ { "system",
+ { "ipc_info", "syslog_read", "syslog_mod",
+ "syslog_console", "module_request", NULL } },
+ { "capability",
+ { "chown", "dac_override", "dac_read_search",
+ "fowner", "fsetid", "kill", "setgid", "setuid", "setpcap",
+ "linux_immutable", "net_bind_service", "net_broadcast",
+ "net_admin", "net_raw", "ipc_lock", "ipc_owner", "sys_module",
+ "sys_rawio", "sys_chroot", "sys_ptrace", "sys_pacct", "sys_admin",
+ "sys_boot", "sys_nice", "sys_resource", "sys_time",
+ "sys_tty_config", "mknod", "lease", "audit_write",
+ "audit_control", "setfcap", NULL } },
+ { "filesystem",
+ { "mount", "remount", "unmount", "getattr",
+ "relabelfrom", "relabelto", "transition", "associate", "quotamod",
+ "quotaget", NULL } },
+ { "file",
+ { COMMON_FILE_PERMS,
+ "execute_no_trans", "entrypoint", "execmod", "open", NULL } },
+ { "dir",
+ { COMMON_FILE_PERMS, "add_name", "remove_name",
+ "reparent", "search", "rmdir", "open", NULL } },
+ { "fd", { "use", NULL } },
+ { "lnk_file",
+ { COMMON_FILE_PERMS, NULL } },
+ { "chr_file",
+ { COMMON_FILE_PERMS,
+ "execute_no_trans", "entrypoint", "execmod", "open", NULL } },
+ { "blk_file",
+ { COMMON_FILE_PERMS, "open", NULL } },
+ { "sock_file",
+ { COMMON_FILE_PERMS, "open", NULL } },
+ { "fifo_file",
+ { COMMON_FILE_PERMS, "open", NULL } },
+ { "socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { "tcp_socket",
+ { COMMON_SOCK_PERMS,
+ "connectto", "newconn", "acceptfrom", "node_bind", "name_connect",
+ NULL } },
+ { "udp_socket",
+ { COMMON_SOCK_PERMS,
+ "node_bind", NULL } },
+ { "rawip_socket",
+ { COMMON_SOCK_PERMS,
+ "node_bind", NULL } },
+ { "node",
+ { "tcp_recv", "tcp_send", "udp_recv", "udp_send",
+ "rawip_recv", "rawip_send", "enforce_dest",
+ "dccp_recv", "dccp_send", "recvfrom", "sendto", NULL } },
+ { "netif",
+ { "tcp_recv", "tcp_send", "udp_recv", "udp_send",
+ "rawip_recv", "rawip_send", "dccp_recv", "dccp_send",
+ "ingress", "egress", NULL } },
+ { "netlink_socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { "packet_socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { "key_socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { "unix_stream_socket",
+ { COMMON_SOCK_PERMS, "connectto", "newconn", "acceptfrom", NULL
+ } },
+ { "unix_dgram_socket",
+ { COMMON_SOCK_PERMS, NULL
+ } },
+ { "sem",
+ { COMMON_IPC_PERMS, NULL } },
+ { "msg", { "send", "receive", NULL } },
+ { "msgq",
+ { COMMON_IPC_PERMS, "enqueue", NULL } },
+ { "shm",
+ { COMMON_IPC_PERMS, "lock", NULL } },
+ { "ipc",
+ { COMMON_IPC_PERMS, NULL } },
+ { "netlink_route_socket",
+ { COMMON_SOCK_PERMS,
+ "nlmsg_read", "nlmsg_write", NULL } },
+ { "netlink_firewall_socket",
+ { COMMON_SOCK_PERMS,
+ "nlmsg_read", "nlmsg_write", NULL } },
+ { "netlink_tcpdiag_socket",
+ { COMMON_SOCK_PERMS,
+ "nlmsg_read", "nlmsg_write", NULL } },
+ { "netlink_nflog_socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { "netlink_xfrm_socket",
+ { COMMON_SOCK_PERMS,
+ "nlmsg_read", "nlmsg_write", NULL } },
+ { "netlink_selinux_socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { "netlink_audit_socket",
+ { COMMON_SOCK_PERMS,
+ "nlmsg_read", "nlmsg_write", "nlmsg_relay", "nlmsg_readpriv",
+ "nlmsg_tty_audit", NULL } },
+ { "netlink_ip6fw_socket",
+ { COMMON_SOCK_PERMS,
+ "nlmsg_read", "nlmsg_write", NULL } },
+ { "netlink_dnrt_socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { "association",
+ { "sendto", "recvfrom", "setcontext", "polmatch", NULL } },
+ { "netlink_kobject_uevent_socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { "appletalk_socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { "packet",
+ { "send", "recv", "relabelto", "flow_in", "flow_out",
+ "forward_in", "forward_out", NULL } },
+ { "key",
+ { "view", "read", "write", "search", "link", "setattr", "create",
+ NULL } },
+ { "dccp_socket",
+ { COMMON_SOCK_PERMS,
+ "node_bind", "name_connect", NULL } },
+ { "memprotect", { "mmap_zero", NULL } },
+ { "peer", { "recv", NULL } },
+ { "capability2", { "mac_override", "mac_admin", NULL } },
+ { "kernel_service", { "use_as_override", "create_files_as", NULL } },
+ { "tun_socket",
+ { COMMON_SOCK_PERMS, NULL } },
+ { NULL }
+ };
diff --git a/security/selinux/include/common_perm_to_string.h b/security/selinux/include/common_perm_to_string.h
deleted file mode 100644
index ce5b6e2fe9dd..000000000000
--- a/security/selinux/include/common_perm_to_string.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/* This file is automatically generated. Do not edit. */
-TB_(common_file_perm_to_string)
- S_("ioctl")
- S_("read")
- S_("write")
- S_("create")
- S_("getattr")
- S_("setattr")
- S_("lock")
- S_("relabelfrom")
- S_("relabelto")
- S_("append")
- S_("unlink")
- S_("link")
- S_("rename")
- S_("execute")
- S_("swapon")
- S_("quotaon")
- S_("mounton")
-TE_(common_file_perm_to_string)
-
-TB_(common_socket_perm_to_string)
- S_("ioctl")
- S_("read")
- S_("write")
- S_("create")
- S_("getattr")
- S_("setattr")
- S_("lock")
- S_("relabelfrom")
- S_("relabelto")
- S_("append")
- S_("bind")
- S_("connect")
- S_("listen")
- S_("accept")
- S_("getopt")
- S_("setopt")
- S_("shutdown")
- S_("recvfrom")
- S_("sendto")
- S_("recv_msg")
- S_("send_msg")
- S_("name_bind")
-TE_(common_socket_perm_to_string)
-
-TB_(common_ipc_perm_to_string)
- S_("create")
- S_("destroy")
- S_("getattr")
- S_("setattr")
- S_("read")
- S_("write")
- S_("associate")
- S_("unix_read")
- S_("unix_write")
-TE_(common_ipc_perm_to_string)
-
diff --git a/security/selinux/include/flask.h b/security/selinux/include/flask.h
index f248500a1e3c..5359ca2abf21 100644
--- a/security/selinux/include/flask.h
+++ b/security/selinux/include/flask.h
@@ -34,26 +34,26 @@
#define SECCLASS_MSGQ 27
#define SECCLASS_SHM 28
#define SECCLASS_IPC 29
-#define SECCLASS_NETLINK_ROUTE_SOCKET 43
-#define SECCLASS_NETLINK_FIREWALL_SOCKET 44
-#define SECCLASS_NETLINK_TCPDIAG_SOCKET 45
-#define SECCLASS_NETLINK_NFLOG_SOCKET 46
-#define SECCLASS_NETLINK_XFRM_SOCKET 47
-#define SECCLASS_NETLINK_SELINUX_SOCKET 48
-#define SECCLASS_NETLINK_AUDIT_SOCKET 49
-#define SECCLASS_NETLINK_IP6FW_SOCKET 50
-#define SECCLASS_NETLINK_DNRT_SOCKET 51
-#define SECCLASS_ASSOCIATION 54
-#define SECCLASS_NETLINK_KOBJECT_UEVENT_SOCKET 55
-#define SECCLASS_APPLETALK_SOCKET 56
-#define SECCLASS_PACKET 57
-#define SECCLASS_KEY 58
-#define SECCLASS_DCCP_SOCKET 60
-#define SECCLASS_MEMPROTECT 61
-#define SECCLASS_PEER 68
-#define SECCLASS_CAPABILITY2 69
-#define SECCLASS_KERNEL_SERVICE 74
-#define SECCLASS_TUN_SOCKET 75
+#define SECCLASS_NETLINK_ROUTE_SOCKET 30
+#define SECCLASS_NETLINK_FIREWALL_SOCKET 31
+#define SECCLASS_NETLINK_TCPDIAG_SOCKET 32
+#define SECCLASS_NETLINK_NFLOG_SOCKET 33
+#define SECCLASS_NETLINK_XFRM_SOCKET 34
+#define SECCLASS_NETLINK_SELINUX_SOCKET 35
+#define SECCLASS_NETLINK_AUDIT_SOCKET 36
+#define SECCLASS_NETLINK_IP6FW_SOCKET 37
+#define SECCLASS_NETLINK_DNRT_SOCKET 38
+#define SECCLASS_ASSOCIATION 39
+#define SECCLASS_NETLINK_KOBJECT_UEVENT_SOCKET 40
+#define SECCLASS_APPLETALK_SOCKET 41
+#define SECCLASS_PACKET 42
+#define SECCLASS_KEY 43
+#define SECCLASS_DCCP_SOCKET 44
+#define SECCLASS_MEMPROTECT 45
+#define SECCLASS_PEER 46
+#define SECCLASS_CAPABILITY2 47
+#define SECCLASS_KERNEL_SERVICE 48
+#define SECCLASS_TUN_SOCKET 49
/*
* Security identifier indices for initial entities
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index ca835795a8b3..2553266ad793 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -97,11 +97,18 @@ struct av_decision {
#define AVD_FLAGS_PERMISSIVE 0x0001
int security_compute_av(u32 ssid, u32 tsid,
- u16 tclass, u32 requested,
- struct av_decision *avd);
+ u16 tclass, u32 requested,
+ struct av_decision *avd);
+
+int security_compute_av_user(u32 ssid, u32 tsid,
+ u16 tclass, u32 requested,
+ struct av_decision *avd);
int security_transition_sid(u32 ssid, u32 tsid,
- u16 tclass, u32 *out_sid);
+ u16 tclass, u32 *out_sid);
+
+int security_transition_sid_user(u32 ssid, u32 tsid,
+ u16 tclass, u32 *out_sid);
int security_member_sid(u32 ssid, u32 tsid,
u16 tclass, u32 *out_sid);
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index b4fc506e7a87..fab36fdf2769 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -522,7 +522,7 @@ static ssize_t sel_write_access(struct file *file, char *buf, size_t size)
if (length < 0)
goto out2;
- length = security_compute_av(ssid, tsid, tclass, req, &avd);
+ length = security_compute_av_user(ssid, tsid, tclass, req, &avd);
if (length < 0)
goto out2;
@@ -571,7 +571,7 @@ static ssize_t sel_write_create(struct file *file, char *buf, size_t size)
if (length < 0)
goto out2;
- length = security_transition_sid(ssid, tsid, tclass, &newsid);
+ length = security_transition_sid_user(ssid, tsid, tclass, &newsid);
if (length < 0)
goto out2;
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index b5407f16c2a4..3f2b2706b5bb 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -532,7 +532,7 @@ int mls_compute_sid(struct context *scontext,
}
/* Fallthrough */
case AVTAB_CHANGE:
- if (tclass == SECCLASS_PROCESS)
+ if (tclass == policydb.process_class)
/* Use the process MLS attributes. */
return mls_context_cpy(newcontext, scontext);
else
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 72e4a54973aa..f03667213ea8 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -713,7 +713,6 @@ void policydb_destroy(struct policydb *p)
ebitmap_destroy(&p->type_attr_map[i]);
}
kfree(p->type_attr_map);
- kfree(p->undefined_perms);
ebitmap_destroy(&p->policycaps);
ebitmap_destroy(&p->permissive_map);
@@ -1640,6 +1639,40 @@ static int policydb_bounds_sanity_check(struct policydb *p)
extern int ss_initialized;
+u16 string_to_security_class(struct policydb *p, const char *name)
+{
+ struct class_datum *cladatum;
+
+ cladatum = hashtab_search(p->p_classes.table, name);
+ if (!cladatum)
+ return 0;
+
+ return cladatum->value;
+}
+
+u32 string_to_av_perm(struct policydb *p, u16 tclass, const char *name)
+{
+ struct class_datum *cladatum;
+ struct perm_datum *perdatum = NULL;
+ struct common_datum *comdatum;
+
+ if (!tclass || tclass > p->p_classes.nprim)
+ return 0;
+
+ cladatum = p->class_val_to_struct[tclass-1];
+ comdatum = cladatum->comdatum;
+ if (comdatum)
+ perdatum = hashtab_search(comdatum->permissions.table,
+ name);
+ if (!perdatum)
+ perdatum = hashtab_search(cladatum->permissions.table,
+ name);
+ if (!perdatum)
+ return 0;
+
+ return 1U << (perdatum->value-1);
+}
+
/*
* Read the configuration data from a policy database binary
* representation file into a policy database structure.
@@ -1861,6 +1894,16 @@ int policydb_read(struct policydb *p, void *fp)
if (rc)
goto bad;
+ p->process_class = string_to_security_class(p, "process");
+ if (!p->process_class)
+ goto bad;
+ p->process_trans_perms = string_to_av_perm(p, p->process_class,
+ "transition");
+ p->process_trans_perms |= string_to_av_perm(p, p->process_class,
+ "dyntransition");
+ if (!p->process_trans_perms)
+ goto bad;
+
for (i = 0; i < info->ocon_num; i++) {
rc = next_entry(buf, fp, sizeof(u32));
if (rc < 0)
@@ -2101,7 +2144,7 @@ int policydb_read(struct policydb *p, void *fp)
goto bad;
rt->target_class = le32_to_cpu(buf[0]);
} else
- rt->target_class = SECCLASS_PROCESS;
+ rt->target_class = p->process_class;
if (!policydb_type_isvalid(p, rt->source_type) ||
!policydb_type_isvalid(p, rt->target_type) ||
!policydb_class_isvalid(p, rt->target_class)) {
diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h
index 55152d498b53..cdcc5700946f 100644
--- a/security/selinux/ss/policydb.h
+++ b/security/selinux/ss/policydb.h
@@ -254,7 +254,9 @@ struct policydb {
unsigned int reject_unknown : 1;
unsigned int allow_unknown : 1;
- u32 *undefined_perms;
+
+ u16 process_class;
+ u32 process_trans_perms;
};
extern void policydb_destroy(struct policydb *p);
@@ -295,5 +297,8 @@ static inline int next_entry(void *buf, struct policy_file *fp, size_t bytes)
return 0;
}
+extern u16 string_to_security_class(struct policydb *p, const char *name);
+extern u32 string_to_av_perm(struct policydb *p, u16 tclass, const char *name);
+
#endif /* _SS_POLICYDB_H_ */
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index ff17820d35ec..e19baa81fdec 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -70,11 +70,6 @@ unsigned int policydb_loaded_version;
int selinux_policycap_netpeer;
int selinux_policycap_openperm;
-/*
- * This is declared in avc.c
- */
-extern const struct selinux_class_perm selinux_class_perm;
-
static DEFINE_RWLOCK(policy_rwlock);
static struct sidtab sidtab;
@@ -98,6 +93,158 @@ static int context_struct_compute_av(struct context *scontext,
u16 tclass,
u32 requested,
struct av_decision *avd);
+
+struct selinux_mapping {
+ u16 value; /* policy value */
+ unsigned num_perms;
+ u32 perms[sizeof(u32) * 8];
+};
+
+static struct selinux_mapping *current_mapping;
+static u16 current_mapping_size;
+
+static int selinux_set_mapping(struct policydb *pol,
+ struct security_class_mapping *map,
+ struct selinux_mapping **out_map_p,
+ u16 *out_map_size)
+{
+ struct selinux_mapping *out_map = NULL;
+ size_t size = sizeof(struct selinux_mapping);
+ u16 i, j;
+ unsigned k;
+ bool print_unknown_handle = false;
+
+ /* Find number of classes in the input mapping */
+ if (!map)
+ return -EINVAL;
+ i = 0;
+ while (map[i].name)
+ i++;
+
+ /* Allocate space for the class records, plus one for class zero */
+ out_map = kcalloc(++i, size, GFP_ATOMIC);
+ if (!out_map)
+ return -ENOMEM;
+
+ /* Store the raw class and permission values */
+ j = 0;
+ while (map[j].name) {
+ struct security_class_mapping *p_in = map + (j++);
+ struct selinux_mapping *p_out = out_map + j;
+
+ /* An empty class string skips ahead */
+ if (!strcmp(p_in->name, "")) {
+ p_out->num_perms = 0;
+ continue;
+ }
+
+ p_out->value = string_to_security_class(pol, p_in->name);
+ if (!p_out->value) {
+ printk(KERN_INFO
+ "SELinux: Class %s not defined in policy.\n",
+ p_in->name);
+ if (pol->reject_unknown)
+ goto err;
+ p_out->num_perms = 0;
+ print_unknown_handle = true;
+ continue;
+ }
+
+ k = 0;
+ while (p_in->perms && p_in->perms[k]) {
+ /* An empty permission string skips ahead */
+ if (!*p_in->perms[k]) {
+ k++;
+ continue;
+ }
+ p_out->perms[k] = string_to_av_perm(pol, p_out->value,
+ p_in->perms[k]);
+ if (!p_out->perms[k]) {
+ printk(KERN_INFO
+ "SELinux: Permission %s in class %s not defined in policy.\n",
+ p_in->perms[k], p_in->name);
+ if (pol->reject_unknown)
+ goto err;
+ print_unknown_handle = true;
+ }
+
+ k++;
+ }
+ p_out->num_perms = k;
+ }
+
+ if (print_unknown_handle)
+ printk(KERN_INFO "SELinux: the above unknown classes and permissions will be %s\n",
+ pol->allow_unknown ? "allowed" : "denied");
+
+ *out_map_p = out_map;
+ *out_map_size = i;
+ return 0;
+err:
+ kfree(out_map);
+ return -EINVAL;
+}
+
+/*
+ * Get real, policy values from mapped values
+ */
+
+static u16 unmap_class(u16 tclass)
+{
+ if (tclass < current_mapping_size)
+ return current_mapping[tclass].value;
+
+ return tclass;
+}
+
+static u32 unmap_perm(u16 tclass, u32 tperm)
+{
+ if (tclass < current_mapping_size) {
+ unsigned i;
+ u32 kperm = 0;
+
+ for (i = 0; i < current_mapping[tclass].num_perms; i++)
+ if (tperm & (1<<i)) {
+ kperm |= current_mapping[tclass].perms[i];
+ tperm &= ~(1<<i);
+ }
+ return kperm;
+ }
+
+ return tperm;
+}
+
+static void map_decision(u16 tclass, struct av_decision *avd,
+ int allow_unknown)
+{
+ if (tclass < current_mapping_size) {
+ unsigned i, n = current_mapping[tclass].num_perms;
+ u32 result;
+
+ for (i = 0, result = 0; i < n; i++) {
+ if (avd->allowed & current_mapping[tclass].perms[i])
+ result |= 1<<i;
+ if (allow_unknown && !current_mapping[tclass].perms[i])
+ result |= 1<<i;
+ }
+ avd->allowed = result;
+
+ for (i = 0, result = 0; i < n; i++)
+ if (avd->auditallow & current_mapping[tclass].perms[i])
+ result |= 1<<i;
+ avd->auditallow = result;
+
+ for (i = 0, result = 0; i < n; i++) {
+ if (avd->auditdeny & current_mapping[tclass].perms[i])
+ result |= 1<<i;
+ if (!allow_unknown && !current_mapping[tclass].perms[i])
+ result |= 1<<i;
+ }
+ avd->auditdeny = result;
+ }
+}
+
+
/*
* Return the boolean value of a constraint expression
* when it is applied to the specified source and target
@@ -467,7 +614,6 @@ static int context_struct_compute_av(struct context *scontext,
struct class_datum *tclass_datum;
struct ebitmap *sattr, *tattr;
struct ebitmap_node *snode, *tnode;
- const struct selinux_class_perm *kdefs = &selinux_class_perm;
unsigned int i, j;
/*
@@ -477,9 +623,9 @@ static int context_struct_compute_av(struct context *scontext,
* to remain in the correct class.
*/
if (policydb_loaded_version < POLICYDB_VERSION_NLCLASS)
- if (tclass >= SECCLASS_NETLINK_ROUTE_SOCKET &&
- tclass <= SECCLASS_NETLINK_DNRT_SOCKET)
- tclass = SECCLASS_NETLINK_SOCKET;
+ if (tclass >= unmap_class(SECCLASS_NETLINK_ROUTE_SOCKET) &&
+ tclass <= unmap_class(SECCLASS_NETLINK_DNRT_SOCKET))
+ tclass = unmap_class(SECCLASS_NETLINK_SOCKET);
/*
* Initialize the access vectors to the default values.
@@ -490,33 +636,11 @@ static int context_struct_compute_av(struct context *scontext,
avd->seqno = latest_granting;
avd->flags = 0;
- /*
- * Check for all the invalid cases.
- * - tclass 0
- * - tclass > policy and > kernel
- * - tclass > policy but is a userspace class
- * - tclass > policy but we do not allow unknowns
- */
- if (unlikely(!tclass))
- goto inval_class;
- if (unlikely(tclass > policydb.p_classes.nprim))
- if (tclass > kdefs->cts_len ||
- !kdefs->class_to_string[tclass] ||
- !policydb.allow_unknown)
- goto inval_class;
-
- /*
- * Kernel class and we allow unknown so pad the allow decision
- * the pad will be all 1 for unknown classes.
- */
- if (tclass <= kdefs->cts_len && policydb.allow_unknown)
- avd->allowed = policydb.undefined_perms[tclass - 1];
-
- /*
- * Not in policy. Since decision is completed (all 1 or all 0) return.
- */
- if (unlikely(tclass > policydb.p_classes.nprim))
- return 0;
+ if (unlikely(!tclass || tclass > policydb.p_classes.nprim)) {
+ if (printk_ratelimit())
+ printk(KERN_WARNING "SELinux: Invalid class %hu\n", tclass);
+ return -EINVAL;
+ }
tclass_datum = policydb.class_val_to_struct[tclass - 1];
@@ -568,8 +692,8 @@ static int context_struct_compute_av(struct context *scontext,
* role is changing, then check the (current_role, new_role)
* pair.
*/
- if (tclass == SECCLASS_PROCESS &&
- (avd->allowed & (PROCESS__TRANSITION | PROCESS__DYNTRANSITION)) &&
+ if (tclass == policydb.process_class &&
+ (avd->allowed & policydb.process_trans_perms) &&
scontext->role != tcontext->role) {
for (ra = policydb.role_allow; ra; ra = ra->next) {
if (scontext->role == ra->role &&
@@ -577,8 +701,7 @@ static int context_struct_compute_av(struct context *scontext,
break;
}
if (!ra)
- avd->allowed &= ~(PROCESS__TRANSITION |
- PROCESS__DYNTRANSITION);
+ avd->allowed &= ~policydb.process_trans_perms;
}
/*
@@ -590,21 +713,6 @@ static int context_struct_compute_av(struct context *scontext,
tclass, requested, avd);
return 0;
-
-inval_class:
- if (!tclass || tclass > kdefs->cts_len ||
- !kdefs->class_to_string[tclass]) {
- if (printk_ratelimit())
- printk(KERN_ERR "SELinux: %s: unrecognized class %d\n",
- __func__, tclass);
- return -EINVAL;
- }
-
- /*
- * Known to the kernel, but not to the policy.
- * Handle as a denial (allowed is 0).
- */
- return 0;
}
static int security_validtrans_handle_fail(struct context *ocontext,
@@ -636,13 +744,14 @@ out:
}
int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
- u16 tclass)
+ u16 orig_tclass)
{
struct context *ocontext;
struct context *ncontext;
struct context *tcontext;
struct class_datum *tclass_datum;
struct constraint_node *constraint;
+ u16 tclass;
int rc = 0;
if (!ss_initialized)
@@ -650,6 +759,8 @@ int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
read_lock(&policy_rwlock);
+ tclass = unmap_class(orig_tclass);
+
/*
* Remap extended Netlink classes for old policy versions.
* Do this here rather than socket_type_to_security_class()
@@ -657,9 +768,9 @@ int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
* to remain in the correct class.
*/
if (policydb_loaded_version < POLICYDB_VERSION_NLCLASS)
- if (tclass >= SECCLASS_NETLINK_ROUTE_SOCKET &&
- tclass <= SECCLASS_NETLINK_DNRT_SOCKET)
- tclass = SECCLASS_NETLINK_SOCKET;
+ if (tclass >= unmap_class(SECCLASS_NETLINK_ROUTE_SOCKET) &&
+ tclass <= unmap_class(SECCLASS_NETLINK_DNRT_SOCKET))
+ tclass = unmap_class(SECCLASS_NETLINK_SOCKET);
if (!tclass || tclass > policydb.p_classes.nprim) {
printk(KERN_ERR "SELinux: %s: unrecognized class %d\n",
@@ -792,6 +903,38 @@ out:
}
+static int security_compute_av_core(u32 ssid,
+ u32 tsid,
+ u16 tclass,
+ u32 requested,
+ struct av_decision *avd)
+{
+ struct context *scontext = NULL, *tcontext = NULL;
+ int rc = 0;
+
+ scontext = sidtab_search(&sidtab, ssid);
+ if (!scontext) {
+ printk(KERN_ERR "SELinux: %s: unrecognized SID %d\n",
+ __func__, ssid);
+ return -EINVAL;
+ }
+ tcontext = sidtab_search(&sidtab, tsid);
+ if (!tcontext) {
+ printk(KERN_ERR "SELinux: %s: unrecognized SID %d\n",
+ __func__, tsid);
+ return -EINVAL;
+ }
+
+ rc = context_struct_compute_av(scontext, tcontext, tclass,
+ requested, avd);
+
+ /* permissive domain? */
+ if (ebitmap_get_bit(&policydb.permissive_map, scontext->type))
+ avd->flags |= AVD_FLAGS_PERMISSIVE;
+
+ return rc;
+}
+
/**
* security_compute_av - Compute access vector decisions.
* @ssid: source security identifier
@@ -807,12 +950,45 @@ out:
*/
int security_compute_av(u32 ssid,
u32 tsid,
- u16 tclass,
- u32 requested,
+ u16 orig_tclass,
+ u32 orig_requested,
struct av_decision *avd)
{
- struct context *scontext = NULL, *tcontext = NULL;
- int rc = 0;
+ u16 tclass;
+ u32 requested;
+ int rc;
+
+ if (!ss_initialized)
+ goto allow;
+
+ read_lock(&policy_rwlock);
+ requested = unmap_perm(orig_tclass, orig_requested);
+ tclass = unmap_class(orig_tclass);
+ if (unlikely(orig_tclass && !tclass)) {
+ if (policydb.allow_unknown)
+ goto allow;
+ return -EINVAL;
+ }
+ rc = security_compute_av_core(ssid, tsid, tclass, requested, avd);
+ map_decision(orig_tclass, avd, policydb.allow_unknown);
+ read_unlock(&policy_rwlock);
+ return rc;
+allow:
+ avd->allowed = 0xffffffff;
+ avd->auditallow = 0;
+ avd->auditdeny = 0xffffffff;
+ avd->seqno = latest_granting;
+ avd->flags = 0;
+ return 0;
+}
+
+int security_compute_av_user(u32 ssid,
+ u32 tsid,
+ u16 tclass,
+ u32 requested,
+ struct av_decision *avd)
+{
+ int rc;
if (!ss_initialized) {
avd->allowed = 0xffffffff;
@@ -823,29 +999,7 @@ int security_compute_av(u32 ssid,
}
read_lock(&policy_rwlock);
-
- scontext = sidtab_search(&sidtab, ssid);
- if (!scontext) {
- printk(KERN_ERR "SELinux: %s: unrecognized SID %d\n",
- __func__, ssid);
- rc = -EINVAL;
- goto out;
- }
- tcontext = sidtab_search(&sidtab, tsid);
- if (!tcontext) {
- printk(KERN_ERR "SELinux: %s: unrecognized SID %d\n",
- __func__, tsid);
- rc = -EINVAL;
- goto out;
- }
-
- rc = context_struct_compute_av(scontext, tcontext, tclass,
- requested, avd);
-
- /* permissive domain? */
- if (ebitmap_get_bit(&policydb.permissive_map, scontext->type))
- avd->flags |= AVD_FLAGS_PERMISSIVE;
-out:
+ rc = security_compute_av_core(ssid, tsid, tclass, requested, avd);
read_unlock(&policy_rwlock);
return rc;
}
@@ -1204,20 +1358,22 @@ out:
static int security_compute_sid(u32 ssid,
u32 tsid,
- u16 tclass,
+ u16 orig_tclass,
u32 specified,
- u32 *out_sid)
+ u32 *out_sid,
+ bool kern)
{
struct context *scontext = NULL, *tcontext = NULL, newcontext;
struct role_trans *roletr = NULL;
struct avtab_key avkey;
struct avtab_datum *avdatum;
struct avtab_node *node;
+ u16 tclass;
int rc = 0;
if (!ss_initialized) {
- switch (tclass) {
- case SECCLASS_PROCESS:
+ switch (orig_tclass) {
+ case SECCLASS_PROCESS: /* kernel value */
*out_sid = ssid;
break;
default:
@@ -1231,6 +1387,11 @@ static int security_compute_sid(u32 ssid,
read_lock(&policy_rwlock);
+ if (kern)
+ tclass = unmap_class(orig_tclass);
+ else
+ tclass = orig_tclass;
+
scontext = sidtab_search(&sidtab, ssid);
if (!scontext) {
printk(KERN_ERR "SELinux: %s: unrecognized SID %d\n",
@@ -1260,13 +1421,11 @@ static int security_compute_sid(u32 ssid,
}
/* Set the role and type to default values. */
- switch (tclass) {
- case SECCLASS_PROCESS:
+ if (tclass == policydb.process_class) {
/* Use the current role and type of process. */
newcontext.role = scontext->role;
newcontext.type = scontext->type;
- break;
- default:
+ } else {
/* Use the well-defined object role. */
newcontext.role = OBJECT_R_VAL;
/* Use the type of the related object. */
@@ -1297,8 +1456,7 @@ static int security_compute_sid(u32 ssid,
}
/* Check for class-specific changes. */
- switch (tclass) {
- case SECCLASS_PROCESS:
+ if (tclass == policydb.process_class) {
if (specified & AVTAB_TRANSITION) {
/* Look for a role transition rule. */
for (roletr = policydb.role_tr; roletr;
@@ -1311,9 +1469,6 @@ static int security_compute_sid(u32 ssid,
}
}
}
- break;
- default:
- break;
}
/* Set the MLS attributes.
@@ -1358,7 +1513,17 @@ int security_transition_sid(u32 ssid,
u16 tclass,
u32 *out_sid)
{
- return security_compute_sid(ssid, tsid, tclass, AVTAB_TRANSITION, out_sid);
+ return security_compute_sid(ssid, tsid, tclass, AVTAB_TRANSITION,
+ out_sid, true);
+}
+
+int security_transition_sid_user(u32 ssid,
+ u32 tsid,
+ u16 tclass,
+ u32 *out_sid)
+{
+ return security_compute_sid(ssid, tsid, tclass, AVTAB_TRANSITION,
+ out_sid, false);
}
/**
@@ -1379,7 +1544,8 @@ int security_member_sid(u32 ssid,
u16 tclass,
u32 *out_sid)
{
- return security_compute_sid(ssid, tsid, tclass, AVTAB_MEMBER, out_sid);
+ return security_compute_sid(ssid, tsid, tclass, AVTAB_MEMBER, out_sid,
+ false);
}
/**
@@ -1400,144 +1566,8 @@ int security_change_sid(u32 ssid,
u16 tclass,
u32 *out_sid)
{
- return security_compute_sid(ssid, tsid, tclass, AVTAB_CHANGE, out_sid);
-}
-
-/*
- * Verify that each kernel class that is defined in the
- * policy is correct
- */
-static int validate_classes(struct policydb *p)
-{
- int i, j;
- struct class_datum *cladatum;
- struct perm_datum *perdatum;
- u32 nprim, tmp, common_pts_len, perm_val, pol_val;
- u16 class_val;
- const struct selinux_class_perm *kdefs = &selinux_class_perm;
- const char *def_class, *def_perm, *pol_class;
- struct symtab *perms;
- bool print_unknown_handle = 0;
-
- if (p->allow_unknown) {
- u32 num_classes = kdefs->cts_len;
- p->undefined_perms = kcalloc(num_classes, sizeof(u32), GFP_KERNEL);
- if (!p->undefined_perms)
- return -ENOMEM;
- }
-
- for (i = 1; i < kdefs->cts_len; i++) {
- def_class = kdefs->class_to_string[i];
- if (!def_class)
- continue;
- if (i > p->p_classes.nprim) {
- printk(KERN_INFO
- "SELinux: class %s not defined in policy\n",
- def_class);
- if (p->reject_unknown)
- return -EINVAL;
- if (p->allow_unknown)
- p->undefined_perms[i-1] = ~0U;
- print_unknown_handle = 1;
- continue;
- }
- pol_class = p->p_class_val_to_name[i-1];
- if (strcmp(pol_class, def_class)) {
- printk(KERN_ERR
- "SELinux: class %d is incorrect, found %s but should be %s\n",
- i, pol_class, def_class);
- return -EINVAL;
- }
- }
- for (i = 0; i < kdefs->av_pts_len; i++) {
- class_val = kdefs->av_perm_to_string[i].tclass;
- perm_val = kdefs->av_perm_to_string[i].value;
- def_perm = kdefs->av_perm_to_string[i].name;
- if (class_val > p->p_classes.nprim)
- continue;
- pol_class = p->p_class_val_to_name[class_val-1];
- cladatum = hashtab_search(p->p_classes.table, pol_class);
- BUG_ON(!cladatum);
- perms = &cladatum->permissions;
- nprim = 1 << (perms->nprim - 1);
- if (perm_val > nprim) {
- printk(KERN_INFO
- "SELinux: permission %s in class %s not defined in policy\n",
- def_perm, pol_class);
- if (p->reject_unknown)
- return -EINVAL;
- if (p->allow_unknown)
- p->undefined_perms[class_val-1] |= perm_val;
- print_unknown_handle = 1;
- continue;
- }
- perdatum = hashtab_search(perms->table, def_perm);
- if (perdatum == NULL) {
- printk(KERN_ERR
- "SELinux: permission %s in class %s not found in policy, bad policy\n",
- def_perm, pol_class);
- return -EINVAL;
- }
- pol_val = 1 << (perdatum->value - 1);
- if (pol_val != perm_val) {
- printk(KERN_ERR
- "SELinux: permission %s in class %s has incorrect value\n",
- def_perm, pol_class);
- return -EINVAL;
- }
- }
- for (i = 0; i < kdefs->av_inherit_len; i++) {
- class_val = kdefs->av_inherit[i].tclass;
- if (class_val > p->p_classes.nprim)
- continue;
- pol_class = p->p_class_val_to_name[class_val-1];
- cladatum = hashtab_search(p->p_classes.table, pol_class);
- BUG_ON(!cladatum);
- if (!cladatum->comdatum) {
- printk(KERN_ERR
- "SELinux: class %s should have an inherits clause but does not\n",
- pol_class);
- return -EINVAL;
- }
- tmp = kdefs->av_inherit[i].common_base;
- common_pts_len = 0;
- while (!(tmp & 0x01)) {
- common_pts_len++;
- tmp >>= 1;
- }
- perms = &cladatum->comdatum->permissions;
- for (j = 0; j < common_pts_len; j++) {
- def_perm = kdefs->av_inherit[i].common_pts[j];
- if (j >= perms->nprim) {
- printk(KERN_INFO
- "SELinux: permission %s in class %s not defined in policy\n",
- def_perm, pol_class);
- if (p->reject_unknown)
- return -EINVAL;
- if (p->allow_unknown)
- p->undefined_perms[class_val-1] |= (1 << j);
- print_unknown_handle = 1;
- continue;
- }
- perdatum = hashtab_search(perms->table, def_perm);
- if (perdatum == NULL) {
- printk(KERN_ERR
- "SELinux: permission %s in class %s not found in policy, bad policy\n",
- def_perm, pol_class);
- return -EINVAL;
- }
- if (perdatum->value != j + 1) {
- printk(KERN_ERR
- "SELinux: permission %s in class %s has incorrect value\n",
- def_perm, pol_class);
- return -EINVAL;
- }
- }
- }
- if (print_unknown_handle)
- printk(KERN_INFO "SELinux: the above unknown classes and permissions will be %s\n",
- (security_get_allow_unknown() ? "allowed" : "denied"));
- return 0;
+ return security_compute_sid(ssid, tsid, tclass, AVTAB_CHANGE, out_sid,
+ false);
}
/* Clone the SID into the new SID table. */
@@ -1710,8 +1740,10 @@ int security_load_policy(void *data, size_t len)
{
struct policydb oldpolicydb, newpolicydb;
struct sidtab oldsidtab, newsidtab;
+ struct selinux_mapping *oldmap, *map = NULL;
struct convert_context_args args;
u32 seqno;
+ u16 map_size;
int rc = 0;
struct policy_file file = { data, len }, *fp = &file;
@@ -1721,16 +1753,14 @@ int security_load_policy(void *data, size_t len)
avtab_cache_destroy();
return -EINVAL;
}
- if (policydb_load_isids(&policydb, &sidtab)) {
+ if (selinux_set_mapping(&policydb, secclass_map,
+ &current_mapping,
+ &current_mapping_size)) {
policydb_destroy(&policydb);
avtab_cache_destroy();
return -EINVAL;
}
- /* Verify that the kernel defined classes are correct. */
- if (validate_classes(&policydb)) {
- printk(KERN_ERR
- "SELinux: the definition of a class is incorrect\n");
- sidtab_destroy(&sidtab);
+ if (policydb_load_isids(&policydb, &sidtab)) {
policydb_destroy(&policydb);
avtab_cache_destroy();
return -EINVAL;
@@ -1759,13 +1789,9 @@ int security_load_policy(void *data, size_t len)
return -ENOMEM;
}
- /* Verify that the kernel defined classes are correct. */
- if (validate_classes(&newpolicydb)) {
- printk(KERN_ERR
- "SELinux: the definition of a class is incorrect\n");
- rc = -EINVAL;
+ if (selinux_set_mapping(&newpolicydb, secclass_map,
+ &map, &map_size))
goto err;
- }
rc = security_preserve_bools(&newpolicydb);
if (rc) {
@@ -1799,6 +1825,9 @@ int security_load_policy(void *data, size_t len)
memcpy(&policydb, &newpolicydb, sizeof policydb);
sidtab_set(&sidtab, &newsidtab);
security_load_policycaps();
+ oldmap = current_mapping;
+ current_mapping = map;
+ current_mapping_size = map_size;
seqno = ++latest_granting;
policydb_loaded_version = policydb.policyvers;
write_unlock_irq(&policy_rwlock);
@@ -1806,6 +1835,7 @@ int security_load_policy(void *data, size_t len)
/* Free the old policydb and SID table. */
policydb_destroy(&oldpolicydb);
sidtab_destroy(&oldsidtab);
+ kfree(oldmap);
avc_ss_reset(seqno);
selnl_notify_policyload(seqno);
@@ -1815,6 +1845,7 @@ int security_load_policy(void *data, size_t len)
return 0;
err:
+ kfree(map);
sidtab_destroy(&newsidtab);
policydb_destroy(&newpolicydb);
return rc;
@@ -2091,7 +2122,7 @@ out_unlock:
}
for (i = 0, j = 0; i < mynel; i++) {
rc = avc_has_perm_noaudit(fromsid, mysids[i],
- SECCLASS_PROCESS,
+ SECCLASS_PROCESS, /* kernel value */
PROCESS__TRANSITION, AVC_STRICT,
NULL);
if (!rc)
@@ -2119,10 +2150,11 @@ out:
*/
int security_genfs_sid(const char *fstype,
char *path,
- u16 sclass,
+ u16 orig_sclass,
u32 *sid)
{
int len;
+ u16 sclass;
struct genfs *genfs;
struct ocontext *c;
int rc = 0, cmp = 0;
@@ -2132,6 +2164,8 @@ int security_genfs_sid(const char *fstype,
read_lock(&policy_rwlock);
+ sclass = unmap_class(orig_sclass);
+
for (genfs = policydb.genfs; genfs; genfs = genfs->next) {
cmp = strcmp(fstype, genfs->fstype);
if (cmp <= 0)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 16:07:03 +0000