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authorLinus Torvalds <torvalds@linux-foundation.org>2022-05-24 13:06:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-05-24 13:06:32 -0700
commitefd1df1982e9203b4f56cb0d5946a24885260ce5 (patch)
treef698d2443843e099a3c282612b9e394fb4f12f9e /security/selinux
parenta6b450573b912316ad36262bfc70e7c3870c56d1 (diff)
parent1af0e4a0233fea7e8226cb977d379dc20f9bbe11 (diff)
downloadlinux-efd1df1982e9203b4f56cb0d5946a24885260ce5.tar.bz2
Merge tag 'selinux-pr-20220523' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore: "We've got twelve patches queued for v5.19, with most being fairly minor. The highlights are below: - The checkreqprot and runtime disable knobs have been deprecated for some time with no active users that we can find. In an effort to move things along we are adding a pause when the knobs are used to help make the deprecation more noticeable in case anyone is still using these hacks in the shadows. - We've added the anonymous inode class name to the AVC audit records when anonymous inodes are involved. This should make writing policy easier when anonymous inodes are involved. - More constification work. This is fairly straightforward and the source of most of the diffstat. - The usual minor cleanups: remove unnecessary assignments, assorted style/checkpatch fixes, kdoc fixes, macro while-loop encapsulations, #include tweaks, etc" * tag 'selinux-pr-20220523' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: security: declare member holding string literal const selinux: log anon inode class name selinux: declare data arrays const selinux: fix indentation level of mls_ops block selinux: include necessary headers in headers selinux: avoid extra semicolon selinux: update parameter documentation selinux: resolve checkpatch errors selinux: don't sleep when CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE is true selinux: checkreqprot is deprecated, add some ssleep() discomfort selinux: runtime disable is deprecated, add some ssleep() discomfort selinux: Remove redundant assignments
Diffstat (limited to 'security/selinux')
-rw-r--r--security/selinux/avc.c6
-rw-r--r--security/selinux/hooks.c9
-rw-r--r--security/selinux/include/audit.h5
-rw-r--r--security/selinux/include/avc.h1
-rw-r--r--security/selinux/include/avc_ss.h4
-rw-r--r--security/selinux/include/classmap.h2
-rw-r--r--security/selinux/include/ibpkey.h2
-rw-r--r--security/selinux/include/initial_sid_to_string.h3
-rw-r--r--security/selinux/include/netnode.h2
-rw-r--r--security/selinux/include/netport.h2
-rw-r--r--security/selinux/include/policycap.h2
-rw-r--r--security/selinux/include/policycap_names.h2
-rw-r--r--security/selinux/include/security.h4
-rw-r--r--security/selinux/include/xfrm.h2
-rw-r--r--security/selinux/nlmsgtab.c12
-rw-r--r--security/selinux/selinuxfs.c8
-rw-r--r--security/selinux/ss/avtab.c20
-rw-r--r--security/selinux/ss/policydb.c36
-rw-r--r--security/selinux/ss/services.c47
19 files changed, 89 insertions, 80 deletions
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index abcd9740d10f..9a43af0ebd7d 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -668,7 +668,7 @@ static void avc_audit_pre_callback(struct audit_buffer *ab, void *a)
struct common_audit_data *ad = a;
struct selinux_audit_data *sad = ad->selinux_audit_data;
u32 av = sad->audited;
- const char **perms;
+ const char *const *perms;
int i, perm;
audit_log_format(ab, "avc: %s ", sad->denied ? "denied" : "granted");
@@ -1059,7 +1059,7 @@ int avc_has_extended_perms(struct selinux_state *state,
node = avc_lookup(state->avc, ssid, tsid, tclass);
if (unlikely(!node)) {
- node = avc_compute_av(state, ssid, tsid, tclass, &avd, xp_node);
+ avc_compute_av(state, ssid, tsid, tclass, &avd, xp_node);
} else {
memcpy(&avd, &node->ae.avd, sizeof(avd));
xp_node = node->ae.xp_node;
@@ -1151,7 +1151,7 @@ inline int avc_has_perm_noaudit(struct selinux_state *state,
node = avc_lookup(state->avc, ssid, tsid, tclass);
if (unlikely(!node))
- node = avc_compute_av(state, ssid, tsid, tclass, avd, &xp_node);
+ avc_compute_av(state, ssid, tsid, tclass, avd, &xp_node);
else
memcpy(avd, &node->ae.avd, sizeof(*avd));
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index e9e959343de9..beceb89f68d9 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -145,7 +145,7 @@ static int __init checkreqprot_setup(char *str)
if (!kstrtoul(str, 0, &checkreqprot)) {
selinux_checkreqprot_boot = checkreqprot ? 1 : 0;
if (checkreqprot)
- pr_warn("SELinux: checkreqprot set to 1 via kernel parameter. This is deprecated and will be rejected in a future kernel release.\n");
+ pr_err("SELinux: checkreqprot set to 1 via kernel parameter. This is deprecated and will be rejected in a future kernel release.\n");
}
return 1;
}
@@ -2964,8 +2964,8 @@ static int selinux_inode_init_security_anon(struct inode *inode,
* allowed to actually create this type of anonymous inode.
*/
- ad.type = LSM_AUDIT_DATA_INODE;
- ad.u.inode = inode;
+ ad.type = LSM_AUDIT_DATA_ANONINODE;
+ ad.u.anonclass = name ? (const char *)name->name : "?";
return avc_has_perm(&selinux_state,
tsec->sid,
@@ -6487,7 +6487,6 @@ static int selinux_setprocattr(const char *name, void *value, size_t size)
goto abort_change;
/* Only allow single threaded processes to change context */
- error = -EPERM;
if (!current_is_single_threaded()) {
error = security_bounded_transition(&selinux_state,
tsec->sid, sid);
@@ -7294,6 +7293,8 @@ static __init int selinux_init(void)
memset(&selinux_state, 0, sizeof(selinux_state));
enforcing_set(&selinux_state, selinux_enforcing_boot);
+ if (CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE)
+ pr_err("SELinux: CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE is non-zero. This is deprecated and will be rejected in a future kernel release.\n");
checkreqprot_set(&selinux_state, selinux_checkreqprot_boot);
selinux_avc_init(&selinux_state.avc);
mutex_init(&selinux_state.status_lock);
diff --git a/security/selinux/include/audit.h b/security/selinux/include/audit.h
index 073a3d34a0d2..1cba83d17f41 100644
--- a/security/selinux/include/audit.h
+++ b/security/selinux/include/audit.h
@@ -12,6 +12,9 @@
#ifndef _SELINUX_AUDIT_H
#define _SELINUX_AUDIT_H
+#include <linux/audit.h>
+#include <linux/types.h>
+
/**
* selinux_audit_rule_init - alloc/init an selinux audit rule structure.
* @field: the field this rule refers to
@@ -51,7 +54,7 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *rule);
* @rule: rule to be checked
* Returns 1 if there are selinux fields specified in the rule, 0 otherwise.
*/
-int selinux_audit_rule_known(struct audit_krule *krule);
+int selinux_audit_rule_known(struct audit_krule *rule);
#endif /* _SELINUX_AUDIT_H */
diff --git a/security/selinux/include/avc.h b/security/selinux/include/avc.h
index 00f78be48283..2b372f98f2d7 100644
--- a/security/selinux/include/avc.h
+++ b/security/selinux/include/avc.h
@@ -104,6 +104,7 @@ int slow_avc_audit(struct selinux_state *state,
/**
* avc_audit - Audit the granting or denial of permissions.
+ * @state: SELinux state
* @ssid: source security identifier
* @tsid: target security identifier
* @tclass: target security class
diff --git a/security/selinux/include/avc_ss.h b/security/selinux/include/avc_ss.h
index 88c384c5c09e..42912c917fd4 100644
--- a/security/selinux/include/avc_ss.h
+++ b/security/selinux/include/avc_ss.h
@@ -7,7 +7,7 @@
#ifndef _SELINUX_AVC_SS_H_
#define _SELINUX_AVC_SS_H_
-#include "flask.h"
+#include <linux/types.h>
struct selinux_avc;
int avc_ss_reset(struct selinux_avc *avc, u32 seqno);
@@ -18,7 +18,7 @@ struct security_class_mapping {
const char *perms[sizeof(u32) * 8 + 1];
};
-extern struct security_class_mapping secclass_map[];
+extern const struct security_class_mapping secclass_map[];
#endif /* _SELINUX_AVC_SS_H_ */
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index 35aac62a662e..ff757ae5f253 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -38,7 +38,7 @@
* Note: The name for any socket class should be suffixed by "socket",
* and doesn't contain more than one substr of "socket".
*/
-struct security_class_mapping secclass_map[] = {
+const struct security_class_mapping secclass_map[] = {
{ "security",
{ "compute_av", "compute_create", "compute_member",
"check_context", "load_policy", "compute_relabel",
diff --git a/security/selinux/include/ibpkey.h b/security/selinux/include/ibpkey.h
index e6ac1d23320b..c992f83b0aae 100644
--- a/security/selinux/include/ibpkey.h
+++ b/security/selinux/include/ibpkey.h
@@ -14,6 +14,8 @@
#ifndef _SELINUX_IB_PKEY_H
#define _SELINUX_IB_PKEY_H
+#include <linux/types.h>
+
#ifdef CONFIG_SECURITY_INFINIBAND
void sel_ib_pkey_flush(void);
int sel_ib_pkey_sid(u64 subnet_prefix, u16 pkey, u32 *sid);
diff --git a/security/selinux/include/initial_sid_to_string.h b/security/selinux/include/initial_sid_to_string.h
index 5d332aeb8b6c..60820517aa43 100644
--- a/security/selinux/include/initial_sid_to_string.h
+++ b/security/selinux/include/initial_sid_to_string.h
@@ -1,6 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0 */
-static const char *initial_sid_to_string[] =
-{
+static const char *const initial_sid_to_string[] = {
NULL,
"kernel",
"security",
diff --git a/security/selinux/include/netnode.h b/security/selinux/include/netnode.h
index e3f784a85840..9b8b655a8cd3 100644
--- a/security/selinux/include/netnode.h
+++ b/security/selinux/include/netnode.h
@@ -17,6 +17,8 @@
#ifndef _SELINUX_NETNODE_H
#define _SELINUX_NETNODE_H
+#include <linux/types.h>
+
void sel_netnode_flush(void);
int sel_netnode_sid(void *addr, u16 family, u32 *sid);
diff --git a/security/selinux/include/netport.h b/security/selinux/include/netport.h
index 31bc16e29cd1..9096a8289948 100644
--- a/security/selinux/include/netport.h
+++ b/security/selinux/include/netport.h
@@ -16,6 +16,8 @@
#ifndef _SELINUX_NETPORT_H
#define _SELINUX_NETPORT_H
+#include <linux/types.h>
+
void sel_netport_flush(void);
int sel_netport_sid(u8 protocol, u16 pnum, u32 *sid);
diff --git a/security/selinux/include/policycap.h b/security/selinux/include/policycap.h
index 2680aa21205c..f35d3458e71d 100644
--- a/security/selinux/include/policycap.h
+++ b/security/selinux/include/policycap.h
@@ -16,6 +16,6 @@ enum {
};
#define POLICYDB_CAP_MAX (__POLICYDB_CAP_MAX - 1)
-extern const char *selinux_policycap_names[__POLICYDB_CAP_MAX];
+extern const char *const selinux_policycap_names[__POLICYDB_CAP_MAX];
#endif /* _SELINUX_POLICYCAP_H_ */
diff --git a/security/selinux/include/policycap_names.h b/security/selinux/include/policycap_names.h
index 100da7d043db..2a87fc3702b8 100644
--- a/security/selinux/include/policycap_names.h
+++ b/security/selinux/include/policycap_names.h
@@ -5,7 +5,7 @@
#include "policycap.h"
/* Policy capability names */
-const char *selinux_policycap_names[__POLICYDB_CAP_MAX] = {
+const char *const selinux_policycap_names[__POLICYDB_CAP_MAX] = {
"network_peer_controls",
"open_perms",
"extended_socket_class",
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index ace4bd13e808..393aff41d3ef 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -16,6 +16,8 @@
#include <linux/rcupdate.h>
#include <linux/refcount.h>
#include <linux/workqueue.h>
+#include <linux/delay.h>
+#include <linux/printk.h>
#include "flask.h"
#include "policycap.h"
@@ -150,6 +152,8 @@ static inline bool checkreqprot_get(const struct selinux_state *state)
static inline void checkreqprot_set(struct selinux_state *state, bool value)
{
+ if (value)
+ pr_err("SELinux: https://github.com/SELinuxProject/selinux-kernel/wiki/DEPRECATE-checkreqprot\n");
WRITE_ONCE(state->checkreqprot, value);
}
diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
index 74159400eeee..c75839860200 100644
--- a/security/selinux/include/xfrm.h
+++ b/security/selinux/include/xfrm.h
@@ -8,7 +8,9 @@
#ifndef _SELINUX_XFRM_H_
#define _SELINUX_XFRM_H_
+#include <linux/lsm_audit.h>
#include <net/flow.h>
+#include <net/xfrm.h>
int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
struct xfrm_user_sec_ctx *uctx,
diff --git a/security/selinux/nlmsgtab.c b/security/selinux/nlmsgtab.c
index d8ceee9e0d6f..2ee7b4ed43ef 100644
--- a/security/selinux/nlmsgtab.c
+++ b/security/selinux/nlmsgtab.c
@@ -25,8 +25,7 @@ struct nlmsg_perm {
u32 perm;
};
-static const struct nlmsg_perm nlmsg_route_perms[] =
-{
+static const 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 },
@@ -97,16 +96,14 @@ static const struct nlmsg_perm nlmsg_route_perms[] =
{ RTM_GETTUNNEL, NETLINK_ROUTE_SOCKET__NLMSG_READ },
};
-static const struct nlmsg_perm nlmsg_tcpdiag_perms[] =
-{
+static const 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 },
{ SOCK_DESTROY, NETLINK_TCPDIAG_SOCKET__NLMSG_WRITE },
};
-static const struct nlmsg_perm nlmsg_xfrm_perms[] =
-{
+static const 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 },
@@ -134,8 +131,7 @@ static const struct nlmsg_perm nlmsg_xfrm_perms[] =
{ XFRM_MSG_GETDEFAULT, NETLINK_XFRM_SOCKET__NLMSG_READ },
};
-static const struct nlmsg_perm nlmsg_audit_perms[] =
-{
+static const 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 },
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 097c6d866ec4..8fcdd494af27 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -293,6 +293,8 @@ static ssize_t sel_write_disable(struct file *file, const char __user *buf,
* kernel releases until eventually it is removed
*/
pr_err("SELinux: Runtime disable is deprecated, use selinux=0 on the kernel cmdline.\n");
+ pr_err("SELinux: https://github.com/SELinuxProject/selinux-kernel/wiki/DEPRECATE-runtime-disable\n");
+ ssleep(5);
if (count >= PAGE_SIZE)
return -ENOMEM;
@@ -755,11 +757,13 @@ static ssize_t sel_write_checkreqprot(struct file *file, const char __user *buf,
char comm[sizeof(current->comm)];
memcpy(comm, current->comm, sizeof(comm));
- pr_warn_once("SELinux: %s (%d) set checkreqprot to 1. This is deprecated and will be rejected in a future kernel release.\n",
- comm, current->pid);
+ pr_err("SELinux: %s (%d) set checkreqprot to 1. This is deprecated and will be rejected in a future kernel release.\n",
+ comm, current->pid);
}
checkreqprot_set(fsi->state, (new_value ? 1 : 0));
+ if (new_value)
+ ssleep(5);
length = count;
selinux_ima_measure_state(fsi->state);
diff --git a/security/selinux/ss/avtab.c b/security/selinux/ss/avtab.c
index cfdae20792e1..8480ec6c6e75 100644
--- a/security/selinux/ss/avtab.c
+++ b/security/selinux/ss/avtab.c
@@ -40,15 +40,15 @@ static inline int avtab_hash(const struct avtab_key *keyp, u32 mask)
u32 hash = 0;
-#define mix(input) { \
- u32 v = input; \
- v *= c1; \
- v = (v << r1) | (v >> (32 - r1)); \
- v *= c2; \
- hash ^= v; \
- hash = (hash << r2) | (hash >> (32 - r2)); \
- hash = hash * m + n; \
-}
+#define mix(input) do { \
+ u32 v = input; \
+ v *= c1; \
+ v = (v << r1) | (v >> (32 - r1)); \
+ v *= c2; \
+ hash ^= v; \
+ hash = (hash << r2) | (hash >> (32 - r2)); \
+ hash = hash * m + n; \
+ } while (0)
mix(keyp->target_class);
mix(keyp->target_type);
@@ -385,7 +385,7 @@ void avtab_hash_eval(struct avtab *h, char *tag)
chain2_len_sum);
}
-static uint16_t spec_order[] = {
+static const uint16_t spec_order[] = {
AVTAB_ALLOWED,
AVTAB_AUDITDENY,
AVTAB_AUDITALLOW,
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index d036e1238e77..adcfb63b3550 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -61,7 +61,7 @@ struct policydb_compat_info {
};
/* These need to be updated if SYM_NUM or OCON_NUM changes */
-static struct policydb_compat_info policydb_compat[] = {
+static const struct policydb_compat_info policydb_compat[] = {
{
.version = POLICYDB_VERSION_BASE,
.sym_num = SYM_NUM - 3,
@@ -159,18 +159,16 @@ static struct policydb_compat_info policydb_compat[] = {
},
};
-static struct policydb_compat_info *policydb_lookup_compat(int version)
+static const struct policydb_compat_info *policydb_lookup_compat(int version)
{
int i;
- struct policydb_compat_info *info = NULL;
for (i = 0; i < ARRAY_SIZE(policydb_compat); i++) {
- if (policydb_compat[i].version == version) {
- info = &policydb_compat[i];
- break;
- }
+ if (policydb_compat[i].version == version)
+ return &policydb_compat[i];
}
- return info;
+
+ return NULL;
}
/*
@@ -314,8 +312,7 @@ static int cat_destroy(void *key, void *datum, void *p)
return 0;
}
-static int (*destroy_f[SYM_NUM]) (void *key, void *datum, void *datap) =
-{
+static int (*const destroy_f[SYM_NUM]) (void *key, void *datum, void *datap) = {
common_destroy,
cls_destroy,
role_destroy,
@@ -670,8 +667,7 @@ static int cat_index(void *key, void *datum, void *datap)
return 0;
}
-static int (*index_f[SYM_NUM]) (void *key, void *datum, void *datap) =
-{
+static int (*const index_f[SYM_NUM]) (void *key, void *datum, void *datap) = {
common_index,
class_index,
role_index,
@@ -1639,8 +1635,8 @@ bad:
return rc;
}
-static int (*read_f[SYM_NUM]) (struct policydb *p, struct symtab *s, void *fp) =
-{
+static int (*const read_f[SYM_NUM]) (struct policydb *p,
+ struct symtab *s, void *fp) = {
common_read,
class_read,
role_read,
@@ -2211,7 +2207,7 @@ out:
return rc;
}
-static int ocontext_read(struct policydb *p, struct policydb_compat_info *info,
+static int ocontext_read(struct policydb *p, const struct policydb_compat_info *info,
void *fp)
{
int i, j, rc;
@@ -2407,7 +2403,7 @@ int policydb_read(struct policydb *p, void *fp)
u32 len, nprim, nel, perm;
char *policydb_str;
- struct policydb_compat_info *info;
+ const struct policydb_compat_info *info;
policydb_init(p);
@@ -3241,9 +3237,7 @@ static int user_write(void *vkey, void *datum, void *ptr)
return 0;
}
-static int (*write_f[SYM_NUM]) (void *key, void *datum,
- void *datap) =
-{
+static int (*const write_f[SYM_NUM]) (void *key, void *datum, void *datap) = {
common_write,
class_write,
role_write,
@@ -3254,7 +3248,7 @@ static int (*write_f[SYM_NUM]) (void *key, void *datum,
cat_write,
};
-static int ocontext_write(struct policydb *p, struct policydb_compat_info *info,
+static int ocontext_write(struct policydb *p, const struct policydb_compat_info *info,
void *fp)
{
unsigned int i, j, rc;
@@ -3611,7 +3605,7 @@ int policydb_write(struct policydb *p, void *fp)
__le32 buf[4];
u32 config;
size_t len;
- struct policydb_compat_info *info;
+ const struct policydb_compat_info *info;
/*
* refuse to write policy older than compressed avtab
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 6901dc07680d..69b2734311a6 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -99,7 +99,7 @@ static void context_struct_compute_av(struct policydb *policydb,
struct extended_perms *xperms);
static int selinux_set_mapping(struct policydb *pol,
- struct security_class_mapping *map,
+ const struct security_class_mapping *map,
struct selinux_map *out_map)
{
u16 i, j;
@@ -121,7 +121,7 @@ static int selinux_set_mapping(struct policydb *pol,
/* Store the raw class and permission values */
j = 0;
while (map[j].name) {
- struct security_class_mapping *p_in = map + (j++);
+ const struct security_class_mapping *p_in = map + (j++);
struct selinux_mapping *p_out = out_map->mapping + j;
/* An empty class string skips ahead */
@@ -358,27 +358,27 @@ static int constraint_expr_eval(struct policydb *policydb,
l2 = &(tcontext->range.level[1]);
goto mls_ops;
mls_ops:
- switch (e->op) {
- case CEXPR_EQ:
- s[++sp] = mls_level_eq(l1, l2);
- continue;
- case CEXPR_NEQ:
- s[++sp] = !mls_level_eq(l1, l2);
- continue;
- case CEXPR_DOM:
- s[++sp] = mls_level_dom(l1, l2);
- continue;
- case CEXPR_DOMBY:
- s[++sp] = mls_level_dom(l2, l1);
- continue;
- case CEXPR_INCOMP:
- s[++sp] = mls_level_incomp(l2, l1);
- continue;
- default:
- BUG();
- return 0;
- }
- break;
+ switch (e->op) {
+ case CEXPR_EQ:
+ s[++sp] = mls_level_eq(l1, l2);
+ continue;
+ case CEXPR_NEQ:
+ s[++sp] = !mls_level_eq(l1, l2);
+ continue;
+ case CEXPR_DOM:
+ s[++sp] = mls_level_dom(l1, l2);
+ continue;
+ case CEXPR_DOMBY:
+ s[++sp] = mls_level_dom(l2, l1);
+ continue;
+ case CEXPR_INCOMP:
+ s[++sp] = mls_level_incomp(l2, l1);
+ continue;
+ default:
+ BUG();
+ return 0;
+ }
+ break;
default:
BUG();
return 0;
@@ -2980,7 +2980,6 @@ int security_fs_use(struct selinux_state *state, struct super_block *sb)
}
retry:
- rc = 0;
rcu_read_lock();
policy = rcu_dereference(state->policy);
policydb = &policy->policydb;