Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	Documentation/powerpc/booting-without-of.txt
	drivers/atm/Makefile
	drivers/net/fs_enet/fs_enet-main.c
	drivers/pci/pci-acpi.c
	net/8021q/vlan.c
	net/iucv/iucv.c

8 files changed, 340 insertions, 232 deletions

diff --git a/security/selinux/ss/avtab.c b/security/selinux/ss/avtab.c
index 9e6626362bfd..a1be97f8beea 100644
--- a/security/selinux/ss/avtab.c
+++ b/security/selinux/ss/avtab.c
@@ -311,7 +311,7 @@ void avtab_hash_eval(struct avtab *h, char *tag)
 	}
 
 	printk(KERN_DEBUG "SELinux: %s:  %d entries and %d/%d buckets used, "
-	       "longest chain length %d sum of chain length^2 %Lu\n",
+	       "longest chain length %d sum of chain length^2 %llu\n",
 	       tag, h->nel, slots_used, h->nslot, max_chain_len,
 	       chain2_len_sum);
 }
diff --git a/security/selinux/ss/context.h b/security/selinux/ss/context.h
index b9a6f7fc62fc..658c2bd17da8 100644
--- a/security/selinux/ss/context.h
+++ b/security/selinux/ss/context.h
@@ -28,6 +28,8 @@ struct context {
 	u32 role;
 	u32 type;
 	struct mls_range range;
+	char *str;	/* string representation if context cannot be mapped. */
+	u32 len;        /* length of string in bytes */
 };
 
 static inline void mls_context_init(struct context *c)
@@ -106,20 +108,43 @@ static inline void context_init(struct context *c)
 
 static inline int context_cpy(struct context *dst, struct context *src)
 {
+	int rc;
+
 	dst->user = src->user;
 	dst->role = src->role;
 	dst->type = src->type;
-	return mls_context_cpy(dst, src);
+	if (src->str) {
+		dst->str = kstrdup(src->str, GFP_ATOMIC);
+		if (!dst->str)
+			return -ENOMEM;
+		dst->len = src->len;
+	} else {
+		dst->str = NULL;
+		dst->len = 0;
+	}
+	rc = mls_context_cpy(dst, src);
+	if (rc) {
+		kfree(dst->str);
+		return rc;
+	}
+	return 0;
 }
 
 static inline void context_destroy(struct context *c)
 {
 	c->user = c->role = c->type = 0;
+	kfree(c->str);
+	c->str = NULL;
+	c->len = 0;
 	mls_context_destroy(c);
 }
 
 static inline int context_cmp(struct context *c1, struct context *c2)
 {
+	if (c1->len && c2->len)
+		return (c1->len == c2->len && !strcmp(c1->str, c2->str));
+	if (c1->len || c2->len)
+		return 0;
 	return ((c1->user == c2->user) &&
 		(c1->role == c2->role) &&
 		(c1->type == c2->type) &&
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index 8b1706b7b3cc..77d745da48bb 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -239,7 +239,8 @@ int mls_context_isvalid(struct policydb *p, struct context *c)
  * Policy read-lock must be held for sidtab lookup.
  *
  */
-int mls_context_to_sid(char oldc,
+int mls_context_to_sid(struct policydb *pol,
+		       char oldc,
 		       char **scontext,
 		       struct context *context,
 		       struct sidtab *s,
@@ -286,7 +287,7 @@ int mls_context_to_sid(char oldc,
 		*p++ = 0;
 
 	for (l = 0; l < 2; l++) {
-		levdatum = hashtab_search(policydb.p_levels.table, scontextp);
+		levdatum = hashtab_search(pol->p_levels.table, scontextp);
 		if (!levdatum) {
 			rc = -EINVAL;
 			goto out;
@@ -311,7 +312,7 @@ int mls_context_to_sid(char oldc,
 					*rngptr++ = 0;
 				}
 
-				catdatum = hashtab_search(policydb.p_cats.table,
+				catdatum = hashtab_search(pol->p_cats.table,
 							  scontextp);
 				if (!catdatum) {
 					rc = -EINVAL;
@@ -327,7 +328,7 @@ int mls_context_to_sid(char oldc,
 				if (rngptr) {
 					int i;
 
-					rngdatum = hashtab_search(policydb.p_cats.table, rngptr);
+					rngdatum = hashtab_search(pol->p_cats.table, rngptr);
 					if (!rngdatum) {
 						rc = -EINVAL;
 						goto out;
@@ -395,7 +396,7 @@ int mls_from_string(char *str, struct context *context, gfp_t gfp_mask)
 	if (!tmpstr) {
 		rc = -ENOMEM;
 	} else {
-		rc = mls_context_to_sid(':', &tmpstr, context,
+		rc = mls_context_to_sid(&policydb, ':', &tmpstr, context,
 					NULL, SECSID_NULL);
 		kfree(freestr);
 	}
@@ -436,13 +437,13 @@ int mls_setup_user_range(struct context *fromcon, struct user_datum *user,
 		struct mls_level *usercon_clr = &(usercon->range.level[1]);
 
 		/* Honor the user's default level if we can */
-		if (mls_level_between(user_def, fromcon_sen, fromcon_clr)) {
+		if (mls_level_between(user_def, fromcon_sen, fromcon_clr))
 			*usercon_sen = *user_def;
-		} else if (mls_level_between(fromcon_sen, user_def, user_clr)) {
+		else if (mls_level_between(fromcon_sen, user_def, user_clr))
 			*usercon_sen = *fromcon_sen;
-		} else if (mls_level_between(fromcon_clr, user_low, user_def)) {
+		else if (mls_level_between(fromcon_clr, user_low, user_def))
 			*usercon_sen = *user_low;
-		} else
+		else
 			return -EINVAL;
 
 		/* Lower the clearance of available contexts
diff --git a/security/selinux/ss/mls.h b/security/selinux/ss/mls.h
index 0fdf6257ef64..1276715aaa8b 100644
--- a/security/selinux/ss/mls.h
+++ b/security/selinux/ss/mls.h
@@ -30,7 +30,8 @@ int mls_context_isvalid(struct policydb *p, struct context *c);
 int mls_range_isvalid(struct policydb *p, struct mls_range *r);
 int mls_level_isvalid(struct policydb *p, struct mls_level *l);
 
-int mls_context_to_sid(char oldc,
+int mls_context_to_sid(struct policydb *p,
+		       char oldc,
 		       char **scontext,
 		       struct context *context,
 		       struct sidtab *s,
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 84f8cc73c7db..2391761ae422 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -1478,7 +1478,8 @@ int policydb_read(struct policydb *p, void *fp)
 	struct ocontext *l, *c, *newc;
 	struct genfs *genfs_p, *genfs, *newgenfs;
 	int i, j, rc;
-	__le32 buf[8];
+	__le32 buf[4];
+	u32 nodebuf[8];
 	u32 len, len2, config, nprim, nel, nel2;
 	char *policydb_str;
 	struct policydb_compat_info *info;
@@ -1749,11 +1750,11 @@ int policydb_read(struct policydb *p, void *fp)
 					goto bad;
 				break;
 			case OCON_NODE:
-				rc = next_entry(buf, fp, sizeof(u32) * 2);
+				rc = next_entry(nodebuf, fp, sizeof(u32) * 2);
 				if (rc < 0)
 					goto bad;
-				c->u.node.addr = le32_to_cpu(buf[0]);
-				c->u.node.mask = le32_to_cpu(buf[1]);
+				c->u.node.addr = nodebuf[0]; /* network order */
+				c->u.node.mask = nodebuf[1]; /* network order */
 				rc = context_read_and_validate(&c->context[0], p, fp);
 				if (rc)
 					goto bad;
@@ -1782,13 +1783,13 @@ int policydb_read(struct policydb *p, void *fp)
 			case OCON_NODE6: {
 				int k;
 
-				rc = next_entry(buf, fp, sizeof(u32) * 8);
+				rc = next_entry(nodebuf, fp, sizeof(u32) * 8);
 				if (rc < 0)
 					goto bad;
 				for (k = 0; k < 4; k++)
-					c->u.node6.addr[k] = le32_to_cpu(buf[k]);
+					c->u.node6.addr[k] = nodebuf[k];
 				for (k = 0; k < 4; k++)
-					c->u.node6.mask[k] = le32_to_cpu(buf[k+4]);
+					c->u.node6.mask[k] = nodebuf[k+4];
 				if (context_read_and_validate(&c->context[0], p, fp))
 					goto bad;
 				break;
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index dcc2e1c4fd83..b52f923ce680 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -71,14 +71,6 @@ int selinux_policycap_openperm;
 extern const struct selinux_class_perm selinux_class_perm;
 
 static DEFINE_RWLOCK(policy_rwlock);
-#define POLICY_RDLOCK read_lock(&policy_rwlock)
-#define POLICY_WRLOCK write_lock_irq(&policy_rwlock)
-#define POLICY_RDUNLOCK read_unlock(&policy_rwlock)
-#define POLICY_WRUNLOCK write_unlock_irq(&policy_rwlock)
-
-static DEFINE_MUTEX(load_mutex);
-#define LOAD_LOCK mutex_lock(&load_mutex)
-#define LOAD_UNLOCK mutex_unlock(&load_mutex)
 
 static struct sidtab sidtab;
 struct policydb policydb;
@@ -332,7 +324,7 @@ static int context_struct_compute_av(struct context *scontext,
 		goto inval_class;
 	if (unlikely(tclass > policydb.p_classes.nprim))
 		if (tclass > kdefs->cts_len ||
-		    !kdefs->class_to_string[tclass - 1] ||
+		    !kdefs->class_to_string[tclass] ||
 		    !policydb.allow_unknown)
 			goto inval_class;
 
@@ -415,9 +407,19 @@ static int context_struct_compute_av(struct context *scontext,
 	return 0;
 
 inval_class:
-	printk(KERN_ERR "SELinux: %s:  unrecognized class %d\n", __func__,
-		tclass);
-	return -EINVAL;
+	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;
 }
 
 /*
@@ -429,7 +431,7 @@ int security_permissive_sid(u32 sid)
 	u32 type;
 	int rc;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	context = sidtab_search(&sidtab, sid);
 	BUG_ON(!context);
@@ -441,7 +443,7 @@ int security_permissive_sid(u32 sid)
 	 */
 	rc = ebitmap_get_bit(&policydb.permissive_map, type);
 
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -486,7 +488,7 @@ int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
 	if (!ss_initialized)
 		return 0;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	/*
 	 * Remap extended Netlink classes for old policy versions.
@@ -543,7 +545,7 @@ int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
 	}
 
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -578,7 +580,7 @@ int security_compute_av(u32 ssid,
 		return 0;
 	}
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	scontext = sidtab_search(&sidtab, ssid);
 	if (!scontext) {
@@ -598,7 +600,7 @@ int security_compute_av(u32 ssid,
 	rc = context_struct_compute_av(scontext, tcontext, tclass,
 				       requested, avd);
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -616,6 +618,14 @@ static int context_struct_to_string(struct context *context, char **scontext, u3
 	*scontext = NULL;
 	*scontext_len = 0;
 
+	if (context->len) {
+		*scontext_len = context->len;
+		*scontext = kstrdup(context->str, GFP_ATOMIC);
+		if (!(*scontext))
+			return -ENOMEM;
+		return 0;
+	}
+
 	/* Compute the size of the context. */
 	*scontext_len += strlen(policydb.p_user_val_to_name[context->user - 1]) + 1;
 	*scontext_len += strlen(policydb.p_role_val_to_name[context->role - 1]) + 1;
@@ -655,17 +665,8 @@ const char *security_get_initial_sid_context(u32 sid)
 	return initial_sid_to_string[sid];
 }
 
-/**
- * security_sid_to_context - Obtain a context for a given SID.
- * @sid: security identifier, SID
- * @scontext: security context
- * @scontext_len: length in bytes
- *
- * Write the string representation of the context associated with @sid
- * into a dynamically allocated string of the correct size.  Set @scontext
- * to point to this string and set @scontext_len to the length of the string.
- */
-int security_sid_to_context(u32 sid, char **scontext, u32 *scontext_len)
+static int security_sid_to_context_core(u32 sid, char **scontext,
+					u32 *scontext_len, int force)
 {
 	struct context *context;
 	int rc = 0;
@@ -692,8 +693,11 @@ int security_sid_to_context(u32 sid, char **scontext, u32 *scontext_len)
 		rc = -EINVAL;
 		goto out;
 	}
-	POLICY_RDLOCK;
-	context = sidtab_search(&sidtab, sid);
+	read_lock(&policy_rwlock);
+	if (force)
+		context = sidtab_search_force(&sidtab, sid);
+	else
+		context = sidtab_search(&sidtab, sid);
 	if (!context) {
 		printk(KERN_ERR "SELinux: %s:  unrecognized SID %d\n",
 			__func__, sid);
@@ -702,59 +706,54 @@ int security_sid_to_context(u32 sid, char **scontext, u32 *scontext_len)
 	}
 	rc = context_struct_to_string(context, scontext, scontext_len);
 out_unlock:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 out:
 	return rc;
 
 }
 
-static int security_context_to_sid_core(const char *scontext, u32 scontext_len,
-					u32 *sid, u32 def_sid, gfp_t gfp_flags)
+/**
+ * security_sid_to_context - Obtain a context for a given SID.
+ * @sid: security identifier, SID
+ * @scontext: security context
+ * @scontext_len: length in bytes
+ *
+ * Write the string representation of the context associated with @sid
+ * into a dynamically allocated string of the correct size.  Set @scontext
+ * to point to this string and set @scontext_len to the length of the string.
+ */
+int security_sid_to_context(u32 sid, char **scontext, u32 *scontext_len)
+{
+	return security_sid_to_context_core(sid, scontext, scontext_len, 0);
+}
+
+int security_sid_to_context_force(u32 sid, char **scontext, u32 *scontext_len)
+{
+	return security_sid_to_context_core(sid, scontext, scontext_len, 1);
+}
+
+/*
+ * Caveat:  Mutates scontext.
+ */
+static int string_to_context_struct(struct policydb *pol,
+				    struct sidtab *sidtabp,
+				    char *scontext,
+				    u32 scontext_len,
+				    struct context *ctx,
+				    u32 def_sid)
 {
-	char *scontext2;
-	struct context context;
 	struct role_datum *role;
 	struct type_datum *typdatum;
 	struct user_datum *usrdatum;
 	char *scontextp, *p, oldc;
 	int rc = 0;
 
-	if (!ss_initialized) {
-		int i;
-
-		for (i = 1; i < SECINITSID_NUM; i++) {
-			if (!strcmp(initial_sid_to_string[i], scontext)) {
-				*sid = i;
-				goto out;
-			}
-		}
-		*sid = SECINITSID_KERNEL;
-		goto out;
-	}
-	*sid = SECSID_NULL;
-
-	/* Copy the string so that we can modify the copy as we parse it.
-	   The string should already by null terminated, but we append a
-	   null suffix to the copy to avoid problems with the existing
-	   attr package, which doesn't view the null terminator as part
-	   of the attribute value. */
-	scontext2 = kmalloc(scontext_len+1, gfp_flags);
-	if (!scontext2) {
-		rc = -ENOMEM;
-		goto out;
-	}
-	memcpy(scontext2, scontext, scontext_len);
-	scontext2[scontext_len] = 0;
-
-	context_init(&context);
-	*sid = SECSID_NULL;
-
-	POLICY_RDLOCK;
+	context_init(ctx);
 
 	/* Parse the security context. */
 
 	rc = -EINVAL;
-	scontextp = (char *) scontext2;
+	scontextp = (char *) scontext;
 
 	/* Extract the user. */
 	p = scontextp;
@@ -762,15 +761,15 @@ static int security_context_to_sid_core(const char *scontext, u32 scontext_len,
 		p++;
 
 	if (*p == 0)
-		goto out_unlock;
+		goto out;
 
 	*p++ = 0;
 
-	usrdatum = hashtab_search(policydb.p_users.table, scontextp);
+	usrdatum = hashtab_search(pol->p_users.table, scontextp);
 	if (!usrdatum)
-		goto out_unlock;
+		goto out;
 
-	context.user = usrdatum->value;
+	ctx->user = usrdatum->value;
 
 	/* Extract role. */
 	scontextp = p;
@@ -778,14 +777,14 @@ static int security_context_to_sid_core(const char *scontext, u32 scontext_len,
 		p++;
 
 	if (*p == 0)
-		goto out_unlock;
+		goto out;
 
 	*p++ = 0;
 
-	role = hashtab_search(policydb.p_roles.table, scontextp);
+	role = hashtab_search(pol->p_roles.table, scontextp);
 	if (!role)
-		goto out_unlock;
-	context.role = role->value;
+		goto out;
+	ctx->role = role->value;
 
 	/* Extract type. */
 	scontextp = p;
@@ -794,33 +793,87 @@ static int security_context_to_sid_core(const char *scontext, u32 scontext_len,
 	oldc = *p;
 	*p++ = 0;
 
-	typdatum = hashtab_search(policydb.p_types.table, scontextp);
+	typdatum = hashtab_search(pol->p_types.table, scontextp);
 	if (!typdatum)
-		goto out_unlock;
+		goto out;
 
-	context.type = typdatum->value;
+	ctx->type = typdatum->value;
 
-	rc = mls_context_to_sid(oldc, &p, &context, &sidtab, def_sid);
+	rc = mls_context_to_sid(pol, oldc, &p, ctx, sidtabp, def_sid);
 	if (rc)
-		goto out_unlock;
+		goto out;
 
-	if ((p - scontext2) < scontext_len) {
+	if ((p - scontext) < scontext_len) {
 		rc = -EINVAL;
-		goto out_unlock;
+		goto out;
 	}
 
 	/* Check the validity of the new context. */
-	if (!policydb_context_isvalid(&policydb, &context)) {
+	if (!policydb_context_isvalid(pol, ctx)) {
 		rc = -EINVAL;
-		goto out_unlock;
+		context_destroy(ctx);
+		goto out;
+	}
+	rc = 0;
+out:
+	return rc;
+}
+
+static int security_context_to_sid_core(const char *scontext, u32 scontext_len,
+					u32 *sid, u32 def_sid, gfp_t gfp_flags,
+					int force)
+{
+	char *scontext2, *str = NULL;
+	struct context context;
+	int rc = 0;
+
+	if (!ss_initialized) {
+		int i;
+
+		for (i = 1; i < SECINITSID_NUM; i++) {
+			if (!strcmp(initial_sid_to_string[i], scontext)) {
+				*sid = i;
+				return 0;
+			}
+		}
+		*sid = SECINITSID_KERNEL;
+		return 0;
+	}
+	*sid = SECSID_NULL;
+
+	/* Copy the string so that we can modify the copy as we parse it. */
+	scontext2 = kmalloc(scontext_len+1, gfp_flags);
+	if (!scontext2)
+		return -ENOMEM;
+	memcpy(scontext2, scontext, scontext_len);
+	scontext2[scontext_len] = 0;
+
+	if (force) {
+		/* Save another copy for storing in uninterpreted form */
+		str = kstrdup(scontext2, gfp_flags);
+		if (!str) {
+			kfree(scontext2);
+			return -ENOMEM;
+		}
 	}
-	/* Obtain the new sid. */
+
+	read_lock(&policy_rwlock);
+	rc = string_to_context_struct(&policydb, &sidtab,
+				      scontext2, scontext_len,
+				      &context, def_sid);
+	if (rc == -EINVAL && force) {
+		context.str = str;
+		context.len = scontext_len;
+		str = NULL;
+	} else if (rc)
+		goto out;
 	rc = sidtab_context_to_sid(&sidtab, &context, sid);
-out_unlock:
-	POLICY_RDUNLOCK;
-	context_destroy(&context);
-	kfree(scontext2);
+	if (rc)
+		context_destroy(&context);
 out:
+	read_unlock(&policy_rwlock);
+	kfree(scontext2);
+	kfree(str);
 	return rc;
 }
 
@@ -838,7 +891,7 @@ out:
 int security_context_to_sid(const char *scontext, u32 scontext_len, u32 *sid)
 {
 	return security_context_to_sid_core(scontext, scontext_len,
-					    sid, SECSID_NULL, GFP_KERNEL);
+					    sid, SECSID_NULL, GFP_KERNEL, 0);
 }
 
 /**
@@ -855,6 +908,7 @@ int security_context_to_sid(const char *scontext, u32 scontext_len, u32 *sid)
  * The default SID is passed to the MLS layer to be used to allow
  * kernel labeling of the MLS field if the MLS field is not present
  * (for upgrading to MLS without full relabel).
+ * Implicitly forces adding of the context even if it cannot be mapped yet.
  * Returns -%EINVAL if the context is invalid, -%ENOMEM if insufficient
  * memory is available, or 0 on success.
  */
@@ -862,7 +916,14 @@ int security_context_to_sid_default(const char *scontext, u32 scontext_len,
 				    u32 *sid, u32 def_sid, gfp_t gfp_flags)
 {
 	return security_context_to_sid_core(scontext, scontext_len,
-					    sid, def_sid, gfp_flags);
+					    sid, def_sid, gfp_flags, 1);
+}
+
+int security_context_to_sid_force(const char *scontext, u32 scontext_len,
+				  u32 *sid)
+{
+	return security_context_to_sid_core(scontext, scontext_len,
+					    sid, SECSID_NULL, GFP_KERNEL, 1);
 }
 
 static int compute_sid_handle_invalid_context(
@@ -922,7 +983,7 @@ static int security_compute_sid(u32 ssid,
 
 	context_init(&newcontext);
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	scontext = sidtab_search(&sidtab, ssid);
 	if (!scontext) {
@@ -1027,7 +1088,7 @@ static int security_compute_sid(u32 ssid,
 	/* Obtain the sid for the context. */
 	rc = sidtab_context_to_sid(&sidtab, &newcontext, out_sid);
 out_unlock:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	context_destroy(&newcontext);
 out:
 	return rc;
@@ -1110,6 +1171,7 @@ static int validate_classes(struct policydb *p)
 	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;
@@ -1130,6 +1192,7 @@ static int validate_classes(struct policydb *p)
 				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];
@@ -1159,6 +1222,7 @@ static int validate_classes(struct policydb *p)
 				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);
@@ -1206,6 +1270,7 @@ static int validate_classes(struct policydb *p)
 					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);
@@ -1223,6 +1288,9 @@ static int validate_classes(struct policydb *p)
 			}
 		}
 	}
+	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;
 }
 
@@ -1246,9 +1314,12 @@ static inline int convert_context_handle_invalid_context(struct context *context
 		char *s;
 		u32 len;
 
-		context_struct_to_string(context, &s, &len);
-		printk(KERN_ERR "SELinux:  context %s is invalid\n", s);
-		kfree(s);
+		if (!context_struct_to_string(context, &s, &len)) {
+			printk(KERN_WARNING
+		       "SELinux:  Context %s would be invalid if enforcing\n",
+			       s);
+			kfree(s);
+		}
 	}
 	return rc;
 }
@@ -1280,6 +1351,37 @@ static int convert_context(u32 key,
 
 	args = p;
 
+	if (c->str) {
+		struct context ctx;
+		s = kstrdup(c->str, GFP_KERNEL);
+		if (!s) {
+			rc = -ENOMEM;
+			goto out;
+		}
+		rc = string_to_context_struct(args->newp, NULL, s,
+					      c->len, &ctx, SECSID_NULL);
+		kfree(s);
+		if (!rc) {
+			printk(KERN_INFO
+		       "SELinux:  Context %s became valid (mapped).\n",
+			       c->str);
+			/* Replace string with mapped representation. */
+			kfree(c->str);
+			memcpy(c, &ctx, sizeof(*c));
+			goto out;
+		} else if (rc == -EINVAL) {
+			/* Retain string representation for later mapping. */
+			rc = 0;
+			goto out;
+		} else {
+			/* Other error condition, e.g. ENOMEM. */
+			printk(KERN_ERR
+		       "SELinux:   Unable to map context %s, rc = %d.\n",
+			       c->str, -rc);
+			goto out;
+		}
+	}
+
 	rc = context_cpy(&oldc, c);
 	if (rc)
 		goto out;
@@ -1319,13 +1421,21 @@ static int convert_context(u32 key,
 	}
 
 	context_destroy(&oldc);
+	rc = 0;
 out:
 	return rc;
 bad:
-	context_struct_to_string(&oldc, &s, &len);
+	/* Map old representation to string and save it. */
+	if (context_struct_to_string(&oldc, &s, &len))
+		return -ENOMEM;
 	context_destroy(&oldc);
-	printk(KERN_ERR "SELinux:  invalidating context %s\n", s);
-	kfree(s);
+	context_destroy(c);
+	c->str = s;
+	c->len = len;
+	printk(KERN_INFO
+	       "SELinux:  Context %s became invalid (unmapped).\n",
+	       c->str);
+	rc = 0;
 	goto out;
 }
 
@@ -1359,17 +1469,13 @@ int security_load_policy(void *data, size_t len)
 	int rc = 0;
 	struct policy_file file = { data, len }, *fp = &file;
 
-	LOAD_LOCK;
-
 	if (!ss_initialized) {
 		avtab_cache_init();
 		if (policydb_read(&policydb, fp)) {
-			LOAD_UNLOCK;
 			avtab_cache_destroy();
 			return -EINVAL;
 		}
 		if (policydb_load_isids(&policydb, &sidtab)) {
-			LOAD_UNLOCK;
 			policydb_destroy(&policydb);
 			avtab_cache_destroy();
 			return -EINVAL;
@@ -1378,7 +1484,6 @@ int security_load_policy(void *data, size_t len)
 		if (validate_classes(&policydb)) {
 			printk(KERN_ERR
 			       "SELinux:  the definition of a class is incorrect\n");
-			LOAD_UNLOCK;
 			sidtab_destroy(&sidtab);
 			policydb_destroy(&policydb);
 			avtab_cache_destroy();
@@ -1388,7 +1493,6 @@ int security_load_policy(void *data, size_t len)
 		policydb_loaded_version = policydb.policyvers;
 		ss_initialized = 1;
 		seqno = ++latest_granting;
-		LOAD_UNLOCK;
 		selinux_complete_init();
 		avc_ss_reset(seqno);
 		selnl_notify_policyload(seqno);
@@ -1401,12 +1505,13 @@ int security_load_policy(void *data, size_t len)
 	sidtab_hash_eval(&sidtab, "sids");
 #endif
 
-	if (policydb_read(&newpolicydb, fp)) {
-		LOAD_UNLOCK;
+	if (policydb_read(&newpolicydb, fp))
 		return -EINVAL;
-	}
 
-	sidtab_init(&newsidtab);
+	if (sidtab_init(&newsidtab)) {
+		policydb_destroy(&newpolicydb);
+		return -ENOMEM;
+	}
 
 	/* Verify that the kernel defined classes are correct. */
 	if (validate_classes(&newpolicydb)) {
@@ -1429,25 +1534,28 @@ int security_load_policy(void *data, size_t len)
 		goto err;
 	}
 
-	/* Convert the internal representations of contexts
-	   in the new SID table and remove invalid SIDs. */
+	/*
+	 * Convert the internal representations of contexts
+	 * in the new SID table.
+	 */
 	args.oldp = &policydb;
 	args.newp = &newpolicydb;
-	sidtab_map_remove_on_error(&newsidtab, convert_context, &args);
+	rc = sidtab_map(&newsidtab, convert_context, &args);
+	if (rc)
+		goto err;
 
 	/* Save the old policydb and SID table to free later. */
 	memcpy(&oldpolicydb, &policydb, sizeof policydb);
 	sidtab_set(&oldsidtab, &sidtab);
 
 	/* Install the new policydb and SID table. */
-	POLICY_WRLOCK;
+	write_lock_irq(&policy_rwlock);
 	memcpy(&policydb, &newpolicydb, sizeof policydb);
 	sidtab_set(&sidtab, &newsidtab);
 	security_load_policycaps();
 	seqno = ++latest_granting;
 	policydb_loaded_version = policydb.policyvers;
-	POLICY_WRUNLOCK;
-	LOAD_UNLOCK;
+	write_unlock_irq(&policy_rwlock);
 
 	/* Free the old policydb and SID table. */
 	policydb_destroy(&oldpolicydb);
@@ -1461,7 +1569,6 @@ int security_load_policy(void *data, size_t len)
 	return 0;
 
 err:
-	LOAD_UNLOCK;
 	sidtab_destroy(&newsidtab);
 	policydb_destroy(&newpolicydb);
 	return rc;
@@ -1479,7 +1586,7 @@ int security_port_sid(u8 protocol, u16 port, u32 *out_sid)
 	struct ocontext *c;
 	int rc = 0;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	c = policydb.ocontexts[OCON_PORT];
 	while (c) {
@@ -1504,7 +1611,7 @@ int security_port_sid(u8 protocol, u16 port, u32 *out_sid)
 	}
 
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -1518,7 +1625,7 @@ int security_netif_sid(char *name, u32 *if_sid)
 	int rc = 0;
 	struct ocontext *c;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	c = policydb.ocontexts[OCON_NETIF];
 	while (c) {
@@ -1545,7 +1652,7 @@ int security_netif_sid(char *name, u32 *if_sid)
 		*if_sid = SECINITSID_NETIF;
 
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -1577,7 +1684,7 @@ int security_node_sid(u16 domain,
 	int rc = 0;
 	struct ocontext *c;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	switch (domain) {
 	case AF_INET: {
@@ -1632,7 +1739,7 @@ int security_node_sid(u16 domain,
 	}
 
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -1671,7 +1778,9 @@ int security_get_user_sids(u32 fromsid,
 	if (!ss_initialized)
 		goto out;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
+
+	context_init(&usercon);
 
 	fromcon = sidtab_search(&sidtab, fromsid);
 	if (!fromcon) {
@@ -1722,7 +1831,7 @@ int security_get_user_sids(u32 fromsid,
 	}
 
 out_unlock:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	if (rc || !mynel) {
 		kfree(mysids);
 		goto out;
@@ -1775,7 +1884,7 @@ int security_genfs_sid(const char *fstype,
 	while (path[0] == '/' && path[1] == '/')
 		path++;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	for (genfs = policydb.genfs; genfs; genfs = genfs->next) {
 		cmp = strcmp(fstype, genfs->fstype);
@@ -1812,7 +1921,7 @@ int security_genfs_sid(const char *fstype,
 
 	*sid = c->sid[0];
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -1830,7 +1939,7 @@ int security_fs_use(
 	int rc = 0;
 	struct ocontext *c;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	c = policydb.ocontexts[OCON_FSUSE];
 	while (c) {
@@ -1860,7 +1969,7 @@ int security_fs_use(
 	}
 
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -1868,7 +1977,7 @@ int security_get_bools(int *len, char ***names, int **values)
 {
 	int i, rc = -ENOMEM;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 	*names = NULL;
 	*values = NULL;
 
@@ -1898,7 +2007,7 @@ int security_get_bools(int *len, char ***names, int **values)
 	}
 	rc = 0;
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 err:
 	if (*names) {
@@ -1916,7 +2025,7 @@ int security_set_bools(int len, int *values)
 	int lenp, seqno = 0;
 	struct cond_node *cur;
 
-	POLICY_WRLOCK;
+	write_lock_irq(&policy_rwlock);
 
 	lenp = policydb.p_bools.nprim;
 	if (len != lenp) {
@@ -1950,7 +2059,7 @@ int security_set_bools(int len, int *values)
 	seqno = ++latest_granting;
 
 out:
-	POLICY_WRUNLOCK;
+	write_unlock_irq(&policy_rwlock);
 	if (!rc) {
 		avc_ss_reset(seqno);
 		selnl_notify_policyload(seqno);
@@ -1964,7 +2073,7 @@ int security_get_bool_value(int bool)
 	int rc = 0;
 	int len;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	len = policydb.p_bools.nprim;
 	if (bool >= len) {
@@ -1974,7 +2083,7 @@ int security_get_bool_value(int bool)
 
 	rc = policydb.bool_val_to_struct[bool]->state;
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -2029,7 +2138,7 @@ int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid)
 
 	context_init(&newcon);
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 	context1 = sidtab_search(&sidtab, sid);
 	if (!context1) {
 		printk(KERN_ERR "SELinux: %s:  unrecognized SID %d\n",
@@ -2071,7 +2180,7 @@ bad:
 	}
 
 out_unlock:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	context_destroy(&newcon);
 out:
 	return rc;
@@ -2128,7 +2237,7 @@ int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type,
 		return 0;
 	}
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	nlbl_ctx = sidtab_search(&sidtab, nlbl_sid);
 	if (!nlbl_ctx) {
@@ -2147,7 +2256,7 @@ int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type,
 	rc = (mls_context_cmp(nlbl_ctx, xfrm_ctx) ? 0 : -EACCES);
 
 out_slowpath:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	if (rc == 0)
 		/* at present NetLabel SIDs/labels really only carry MLS
 		 * information so if the MLS portion of the NetLabel SID
@@ -2177,7 +2286,7 @@ int security_get_classes(char ***classes, int *nclasses)
 {
 	int rc = -ENOMEM;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	*nclasses = policydb.p_classes.nprim;
 	*classes = kcalloc(*nclasses, sizeof(*classes), GFP_ATOMIC);
@@ -2194,7 +2303,7 @@ int security_get_classes(char ***classes, int *nclasses)
 	}
 
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 
@@ -2216,7 +2325,7 @@ int security_get_permissions(char *class, char ***perms, int *nperms)
 	int rc = -ENOMEM, i;
 	struct class_datum *match;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	match = hashtab_search(policydb.p_classes.table, class);
 	if (!match) {
@@ -2244,11 +2353,11 @@ int security_get_permissions(char *class, char ***perms, int *nperms)
 		goto err;
 
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 
 err:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	for (i = 0; i < *nperms; i++)
 		kfree((*perms)[i]);
 	kfree(*perms);
@@ -2279,9 +2388,9 @@ int security_policycap_supported(unsigned int req_cap)
 {
 	int rc;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 	rc = ebitmap_get_bit(&policydb.policycaps, req_cap);
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 
 	return rc;
 }
@@ -2345,7 +2454,7 @@ int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
 
 	context_init(&tmprule->au_ctxt);
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	tmprule->au_seqno = latest_granting;
 
@@ -2382,7 +2491,7 @@ int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
 		break;
 	}
 
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 
 	if (rc) {
 		selinux_audit_rule_free(tmprule);
@@ -2420,7 +2529,7 @@ int selinux_audit_rule_known(struct audit_krule *rule)
 }
 
 int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
-                             struct audit_context *actx)
+			     struct audit_context *actx)
 {
 	struct context *ctxt;
 	struct mls_level *level;
@@ -2433,7 +2542,7 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
 		return -ENOENT;
 	}
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	if (rule->au_seqno < latest_granting) {
 		audit_log(actx, GFP_ATOMIC, AUDIT_SELINUX_ERR,
@@ -2527,14 +2636,14 @@ int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule,
 	}
 
 out:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return match;
 }
 
 static int (*aurule_callback)(void) = audit_update_lsm_rules;
 
 static int aurule_avc_callback(u32 event, u32 ssid, u32 tsid,
-                               u16 class, u32 perms, u32 *retained)
+			       u16 class, u32 perms, u32 *retained)
 {
 	int err = 0;
 
@@ -2615,7 +2724,7 @@ int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
 		return 0;
 	}
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 
 	if (secattr->flags & NETLBL_SECATTR_CACHE) {
 		*sid = *(u32 *)secattr->cache->data;
@@ -2660,7 +2769,7 @@ int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
 	}
 
 netlbl_secattr_to_sid_return:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 netlbl_secattr_to_sid_return_cleanup:
 	ebitmap_destroy(&ctx_new.range.level[0].cat);
@@ -2685,7 +2794,7 @@ int security_netlbl_sid_to_secattr(u32 sid, struct netlbl_lsm_secattr *secattr)
 	if (!ss_initialized)
 		return 0;
 
-	POLICY_RDLOCK;
+	read_lock(&policy_rwlock);
 	ctx = sidtab_search(&sidtab, sid);
 	if (ctx == NULL)
 		goto netlbl_sid_to_secattr_failure;
@@ -2696,12 +2805,12 @@ int security_netlbl_sid_to_secattr(u32 sid, struct netlbl_lsm_secattr *secattr)
 	rc = mls_export_netlbl_cat(ctx, secattr);
 	if (rc != 0)
 		goto netlbl_sid_to_secattr_failure;
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 
 	return 0;
 
 netlbl_sid_to_secattr_failure:
-	POLICY_RDUNLOCK;
+	read_unlock(&policy_rwlock);
 	return rc;
 }
 #endif /* CONFIG_NETLABEL */
diff --git a/security/selinux/ss/sidtab.c b/security/selinux/ss/sidtab.c
index 4a516ff4bcde..a81ded104129 100644
--- a/security/selinux/ss/sidtab.c
+++ b/security/selinux/ss/sidtab.c
@@ -14,10 +14,6 @@
 #define SIDTAB_HASH(sid) \
 (sid & SIDTAB_HASH_MASK)
 
-#define INIT_SIDTAB_LOCK(s) spin_lock_init(&s->lock)
-#define SIDTAB_LOCK(s, x) spin_lock_irqsave(&s->lock, x)
-#define SIDTAB_UNLOCK(s, x) spin_unlock_irqrestore(&s->lock, x)
-
 int sidtab_init(struct sidtab *s)
 {
 	int i;
@@ -30,7 +26,7 @@ int sidtab_init(struct sidtab *s)
 	s->nel = 0;
 	s->next_sid = 1;
 	s->shutdown = 0;
-	INIT_SIDTAB_LOCK(s);
+	spin_lock_init(&s->lock);
 	return 0;
 }
 
@@ -86,7 +82,7 @@ out:
 	return rc;
 }
 
-struct context *sidtab_search(struct sidtab *s, u32 sid)
+static struct context *sidtab_search_core(struct sidtab *s, u32 sid, int force)
 {
 	int hvalue;
 	struct sidtab_node *cur;
@@ -99,7 +95,10 @@ struct context *sidtab_search(struct sidtab *s, u32 sid)
 	while (cur != NULL && sid > cur->sid)
 		cur = cur->next;
 
-	if (cur == NULL || sid != cur->sid) {
+	if (force && cur && sid == cur->sid && cur->context.len)
+		return &cur->context;
+
+	if (cur == NULL || sid != cur->sid || cur->context.len) {
 		/* Remap invalid SIDs to the unlabeled SID. */
 		sid = SECINITSID_UNLABELED;
 		hvalue = SIDTAB_HASH(sid);
@@ -113,6 +112,16 @@ struct context *sidtab_search(struct sidtab *s, u32 sid)
 	return &cur->context;
 }
 
+struct context *sidtab_search(struct sidtab *s, u32 sid)
+{
+	return sidtab_search_core(s, sid, 0);
+}
+
+struct context *sidtab_search_force(struct sidtab *s, u32 sid)
+{
+	return sidtab_search_core(s, sid, 1);
+}
+
 int sidtab_map(struct sidtab *s,
 	       int (*apply) (u32 sid,
 			     struct context *context,
@@ -138,43 +147,6 @@ out:
 	return rc;
 }
 
-void sidtab_map_remove_on_error(struct sidtab *s,
-				int (*apply) (u32 sid,
-					      struct context *context,
-					      void *args),
-				void *args)
-{
-	int i, ret;
-	struct sidtab_node *last, *cur, *temp;
-
-	if (!s)
-		return;
-
-	for (i = 0; i < SIDTAB_SIZE; i++) {
-		last = NULL;
-		cur = s->htable[i];
-		while (cur != NULL) {
-			ret = apply(cur->sid, &cur->context, args);
-			if (ret) {
-				if (last)
-					last->next = cur->next;
-				else
-					s->htable[i] = cur->next;
-				temp = cur;
-				cur = cur->next;
-				context_destroy(&temp->context);
-				kfree(temp);
-				s->nel--;
-			} else {
-				last = cur;
-				cur = cur->next;
-			}
-		}
-	}
-
-	return;
-}
-
 static inline u32 sidtab_search_context(struct sidtab *s,
 						  struct context *context)
 {
@@ -204,7 +176,7 @@ int sidtab_context_to_sid(struct sidtab *s,
 
 	sid = sidtab_search_context(s, context);
 	if (!sid) {
-		SIDTAB_LOCK(s, flags);
+		spin_lock_irqsave(&s->lock, flags);
 		/* Rescan now that we hold the lock. */
 		sid = sidtab_search_context(s, context);
 		if (sid)
@@ -215,11 +187,15 @@ int sidtab_context_to_sid(struct sidtab *s,
 			goto unlock_out;
 		}
 		sid = s->next_sid++;
+		if (context->len)
+			printk(KERN_INFO
+		       "SELinux:  Context %s is not valid (left unmapped).\n",
+			       context->str);
 		ret = sidtab_insert(s, sid, context);
 		if (ret)
 			s->next_sid--;
 unlock_out:
-		SIDTAB_UNLOCK(s, flags);
+		spin_unlock_irqrestore(&s->lock, flags);
 	}
 
 	if (ret)
@@ -284,19 +260,19 @@ void sidtab_set(struct sidtab *dst, struct sidtab *src)
 {
 	unsigned long flags;
 
-	SIDTAB_LOCK(src, flags);
+	spin_lock_irqsave(&src->lock, flags);
 	dst->htable = src->htable;
 	dst->nel = src->nel;
 	dst->next_sid = src->next_sid;
 	dst->shutdown = 0;
-	SIDTAB_UNLOCK(src, flags);
+	spin_unlock_irqrestore(&src->lock, flags);
 }
 
 void sidtab_shutdown(struct sidtab *s)
 {
 	unsigned long flags;
 
-	SIDTAB_LOCK(s, flags);
+	spin_lock_irqsave(&s->lock, flags);
 	s->shutdown = 1;
-	SIDTAB_UNLOCK(s, flags);
+	spin_unlock_irqrestore(&s->lock, flags);
 }
diff --git a/security/selinux/ss/sidtab.h b/security/selinux/ss/sidtab.h
index 2fe9dfa3eb3a..64ea5b1cdea4 100644
--- a/security/selinux/ss/sidtab.h
+++ b/security/selinux/ss/sidtab.h
@@ -32,6 +32,7 @@ struct sidtab {
 int sidtab_init(struct sidtab *s);
 int sidtab_insert(struct sidtab *s, u32 sid, struct context *context);
 struct context *sidtab_search(struct sidtab *s, u32 sid);
+struct context *sidtab_search_force(struct sidtab *s, u32 sid);
 
 int sidtab_map(struct sidtab *s,
 	       int (*apply) (u32 sid,
@@ -39,12 +40,6 @@ int sidtab_map(struct sidtab *s,
 			     void *args),
 	       void *args);
 
-void sidtab_map_remove_on_error(struct sidtab *s,
-				int (*apply) (u32 sid,
-					      struct context *context,
-					      void *args),
-				void *args);
-
 int sidtab_context_to_sid(struct sidtab *s,
 			  struct context *context,
 			  u32 *sid);