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-rw-r--r--security/selinux/avc.c3
-rw-r--r--security/selinux/hooks.c66
-rw-r--r--security/selinux/include/initial_sid_to_string.h2
-rw-r--r--security/selinux/include/netlabel.h8
-rw-r--r--security/selinux/netlabel.c14
-rw-r--r--security/selinux/netlink.c1
-rw-r--r--security/selinux/nlmsgtab.c1
-rw-r--r--security/selinux/selinuxfs.c44
-rw-r--r--security/selinux/ss/mls.c2
-rw-r--r--security/selinux/ss/policydb.c6
-rw-r--r--security/selinux/ss/services.c49
11 files changed, 101 insertions, 95 deletions
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index 989fef82563..7f1a304712a 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -499,8 +499,7 @@ void avc_audit(u32 ssid, u32 tsid,
return;
if (!a) {
a = &stack_data;
- memset(a, 0, sizeof(*a));
- a->type = LSM_AUDIT_NO_AUDIT;
+ COMMON_AUDIT_DATA_INIT(a, NONE);
}
a->selinux_audit_data.tclass = tclass;
a->selinux_audit_data.requested = requested;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 5feecb41009..a03fd74602b 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -293,28 +293,28 @@ static void superblock_free_security(struct super_block *sb)
static int sk_alloc_security(struct sock *sk, int family, gfp_t priority)
{
- struct sk_security_struct *ssec;
+ struct sk_security_struct *sksec;
- ssec = kzalloc(sizeof(*ssec), priority);
- if (!ssec)
+ sksec = kzalloc(sizeof(*sksec), priority);
+ if (!sksec)
return -ENOMEM;
- ssec->peer_sid = SECINITSID_UNLABELED;
- ssec->sid = SECINITSID_UNLABELED;
- sk->sk_security = ssec;
+ sksec->peer_sid = SECINITSID_UNLABELED;
+ sksec->sid = SECINITSID_UNLABELED;
+ sk->sk_security = sksec;
- selinux_netlbl_sk_security_reset(ssec);
+ selinux_netlbl_sk_security_reset(sksec);
return 0;
}
static void sk_free_security(struct sock *sk)
{
- struct sk_security_struct *ssec = sk->sk_security;
+ struct sk_security_struct *sksec = sk->sk_security;
sk->sk_security = NULL;
- selinux_netlbl_sk_security_free(ssec);
- kfree(ssec);
+ selinux_netlbl_sk_security_free(sksec);
+ kfree(sksec);
}
/* The security server must be initialized before
@@ -323,7 +323,7 @@ extern int ss_initialized;
/* The file system's label must be initialized prior to use. */
-static char *labeling_behaviors[6] = {
+static const char *labeling_behaviors[6] = {
"uses xattr",
"uses transition SIDs",
"uses task SIDs",
@@ -2999,13 +2999,15 @@ static int selinux_file_ioctl(struct file *file, unsigned int cmd,
return file_has_perm(cred, file, av);
}
+static int default_noexec;
+
static int file_map_prot_check(struct file *file, unsigned long prot, int shared)
{
const struct cred *cred = current_cred();
int rc = 0;
-#ifndef CONFIG_PPC32
- if ((prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) {
+ if (default_noexec &&
+ (prot & PROT_EXEC) && (!file || (!shared && (prot & PROT_WRITE)))) {
/*
* We are making executable an anonymous mapping or a
* private file mapping that will also be writable.
@@ -3015,7 +3017,6 @@ static int file_map_prot_check(struct file *file, unsigned long prot, int shared
if (rc)
goto error;
}
-#endif
if (file) {
/* read access is always possible with a mapping */
@@ -3076,8 +3077,8 @@ static int selinux_file_mprotect(struct vm_area_struct *vma,
if (selinux_checkreqprot)
prot = reqprot;
-#ifndef CONFIG_PPC32
- if ((prot & PROT_EXEC) && !(vma->vm_flags & VM_EXEC)) {
+ if (default_noexec &&
+ (prot & PROT_EXEC) && !(vma->vm_flags & VM_EXEC)) {
int rc = 0;
if (vma->vm_start >= vma->vm_mm->start_brk &&
vma->vm_end <= vma->vm_mm->brk) {
@@ -3099,7 +3100,6 @@ static int selinux_file_mprotect(struct vm_area_struct *vma,
if (rc)
return rc;
}
-#endif
return file_map_prot_check(vma->vm_file, prot, vma->vm_flags&VM_SHARED);
}
@@ -4002,7 +4002,7 @@ static int selinux_socket_unix_stream_connect(struct socket *sock,
struct socket *other,
struct sock *newsk)
{
- struct sk_security_struct *ssec;
+ struct sk_security_struct *sksec;
struct inode_security_struct *isec;
struct inode_security_struct *other_isec;
struct common_audit_data ad;
@@ -4021,13 +4021,13 @@ static int selinux_socket_unix_stream_connect(struct socket *sock,
return err;
/* connecting socket */
- ssec = sock->sk->sk_security;
- ssec->peer_sid = other_isec->sid;
+ sksec = sock->sk->sk_security;
+ sksec->peer_sid = other_isec->sid;
/* server child socket */
- ssec = newsk->sk_security;
- ssec->peer_sid = isec->sid;
- err = security_sid_mls_copy(other_isec->sid, ssec->peer_sid, &ssec->sid);
+ sksec = newsk->sk_security;
+ sksec->peer_sid = isec->sid;
+ err = security_sid_mls_copy(other_isec->sid, sksec->peer_sid, &sksec->sid);
return err;
}
@@ -4190,7 +4190,7 @@ static int selinux_socket_getpeersec_stream(struct socket *sock, char __user *op
int err = 0;
char *scontext;
u32 scontext_len;
- struct sk_security_struct *ssec;
+ struct sk_security_struct *sksec;
struct inode_security_struct *isec;
u32 peer_sid = SECSID_NULL;
@@ -4198,8 +4198,8 @@ static int selinux_socket_getpeersec_stream(struct socket *sock, char __user *op
if (isec->sclass == SECCLASS_UNIX_STREAM_SOCKET ||
isec->sclass == SECCLASS_TCP_SOCKET) {
- ssec = sock->sk->sk_security;
- peer_sid = ssec->peer_sid;
+ sksec = sock->sk->sk_security;
+ peer_sid = sksec->peer_sid;
}
if (peer_sid == SECSID_NULL) {
err = -ENOPROTOOPT;
@@ -4266,14 +4266,14 @@ static void selinux_sk_free_security(struct sock *sk)
static void selinux_sk_clone_security(const struct sock *sk, struct sock *newsk)
{
- struct sk_security_struct *ssec = sk->sk_security;
- struct sk_security_struct *newssec = newsk->sk_security;
+ struct sk_security_struct *sksec = sk->sk_security;
+ struct sk_security_struct *newsksec = newsk->sk_security;
- newssec->sid = ssec->sid;
- newssec->peer_sid = ssec->peer_sid;
- newssec->sclass = ssec->sclass;
+ newsksec->sid = sksec->sid;
+ newsksec->peer_sid = sksec->peer_sid;
+ newsksec->sclass = sksec->sclass;
- selinux_netlbl_sk_security_reset(newssec);
+ selinux_netlbl_sk_security_reset(newsksec);
}
static void selinux_sk_getsecid(struct sock *sk, u32 *secid)
@@ -5662,6 +5662,8 @@ static __init int selinux_init(void)
/* Set the security state for the initial task. */
cred_init_security();
+ default_noexec = !(VM_DATA_DEFAULT_FLAGS & VM_EXEC);
+
sel_inode_cache = kmem_cache_create("selinux_inode_security",
sizeof(struct inode_security_struct),
0, SLAB_PANIC, NULL);
diff --git a/security/selinux/include/initial_sid_to_string.h b/security/selinux/include/initial_sid_to_string.h
index d4fac82793a..a59b64e3fd0 100644
--- a/security/selinux/include/initial_sid_to_string.h
+++ b/security/selinux/include/initial_sid_to_string.h
@@ -1,5 +1,5 @@
/* This file is automatically generated. Do not edit. */
-static char *initial_sid_to_string[] =
+static const char *initial_sid_to_string[] =
{
"null",
"kernel",
diff --git a/security/selinux/include/netlabel.h b/security/selinux/include/netlabel.h
index 8d7384280a7..cf2f628e6e2 100644
--- a/security/selinux/include/netlabel.h
+++ b/security/selinux/include/netlabel.h
@@ -42,8 +42,8 @@ void selinux_netlbl_cache_invalidate(void);
void selinux_netlbl_err(struct sk_buff *skb, int error, int gateway);
-void selinux_netlbl_sk_security_free(struct sk_security_struct *ssec);
-void selinux_netlbl_sk_security_reset(struct sk_security_struct *ssec);
+void selinux_netlbl_sk_security_free(struct sk_security_struct *sksec);
+void selinux_netlbl_sk_security_reset(struct sk_security_struct *sksec);
int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
u16 family,
@@ -79,13 +79,13 @@ static inline void selinux_netlbl_err(struct sk_buff *skb,
}
static inline void selinux_netlbl_sk_security_free(
- struct sk_security_struct *ssec)
+ struct sk_security_struct *sksec)
{
return;
}
static inline void selinux_netlbl_sk_security_reset(
- struct sk_security_struct *ssec)
+ struct sk_security_struct *sksec)
{
return;
}
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index 628da72ee76..1c2fc46544b 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -132,21 +132,21 @@ void selinux_netlbl_err(struct sk_buff *skb, int error, int gateway)
/**
* selinux_netlbl_sk_security_free - Free the NetLabel fields
- * @sssec: the sk_security_struct
+ * @sksec: the sk_security_struct
*
* Description:
* Free all of the memory in the NetLabel fields of a sk_security_struct.
*
*/
-void selinux_netlbl_sk_security_free(struct sk_security_struct *ssec)
+void selinux_netlbl_sk_security_free(struct sk_security_struct *sksec)
{
- if (ssec->nlbl_secattr != NULL)
- netlbl_secattr_free(ssec->nlbl_secattr);
+ if (sksec->nlbl_secattr != NULL)
+ netlbl_secattr_free(sksec->nlbl_secattr);
}
/**
* selinux_netlbl_sk_security_reset - Reset the NetLabel fields
- * @ssec: the sk_security_struct
+ * @sksec: the sk_security_struct
* @family: the socket family
*
* Description:
@@ -154,9 +154,9 @@ void selinux_netlbl_sk_security_free(struct sk_security_struct *ssec)
* The caller is responsibile for all the NetLabel sk_security_struct locking.
*
*/
-void selinux_netlbl_sk_security_reset(struct sk_security_struct *ssec)
+void selinux_netlbl_sk_security_reset(struct sk_security_struct *sksec)
{
- ssec->nlbl_state = NLBL_UNSET;
+ sksec->nlbl_state = NLBL_UNSET;
}
/**
diff --git a/security/selinux/netlink.c b/security/selinux/netlink.c
index 0e147b6914a..36ac257cec9 100644
--- a/security/selinux/netlink.c
+++ b/security/selinux/netlink.c
@@ -14,7 +14,6 @@
#include <linux/slab.h>
#include <linux/stddef.h>
#include <linux/kernel.h>
-#include <linux/list.h>
#include <linux/skbuff.h>
#include <linux/netlink.h>
#include <linux/selinux_netlink.h>
diff --git a/security/selinux/nlmsgtab.c b/security/selinux/nlmsgtab.c
index dd7cc6de77f..75ec0c6ebac 100644
--- a/security/selinux/nlmsgtab.c
+++ b/security/selinux/nlmsgtab.c
@@ -11,7 +11,6 @@
*/
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/skbuff.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/if.h>
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index cd191bbec03..0293843f7ed 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -503,11 +503,11 @@ static ssize_t sel_write_access(struct file *file, char *buf, size_t size)
return length;
length = -ENOMEM;
- scon = kzalloc(size+1, GFP_KERNEL);
+ scon = kzalloc(size + 1, GFP_KERNEL);
if (!scon)
return length;
- tcon = kzalloc(size+1, GFP_KERNEL);
+ tcon = kzalloc(size + 1, GFP_KERNEL);
if (!tcon)
goto out;
@@ -515,10 +515,10 @@ static ssize_t sel_write_access(struct file *file, char *buf, size_t size)
if (sscanf(buf, "%s %s %hu", scon, tcon, &tclass) != 3)
goto out2;
- length = security_context_to_sid(scon, strlen(scon)+1, &ssid);
+ length = security_context_to_sid(scon, strlen(scon) + 1, &ssid);
if (length < 0)
goto out2;
- length = security_context_to_sid(tcon, strlen(tcon)+1, &tsid);
+ length = security_context_to_sid(tcon, strlen(tcon) + 1, &tsid);
if (length < 0)
goto out2;
@@ -550,11 +550,11 @@ static ssize_t sel_write_create(struct file *file, char *buf, size_t size)
return length;
length = -ENOMEM;
- scon = kzalloc(size+1, GFP_KERNEL);
+ scon = kzalloc(size + 1, GFP_KERNEL);
if (!scon)
return length;
- tcon = kzalloc(size+1, GFP_KERNEL);
+ tcon = kzalloc(size + 1, GFP_KERNEL);
if (!tcon)
goto out;
@@ -562,10 +562,10 @@ static ssize_t sel_write_create(struct file *file, char *buf, size_t size)
if (sscanf(buf, "%s %s %hu", scon, tcon, &tclass) != 3)
goto out2;
- length = security_context_to_sid(scon, strlen(scon)+1, &ssid);
+ length = security_context_to_sid(scon, strlen(scon) + 1, &ssid);
if (length < 0)
goto out2;
- length = security_context_to_sid(tcon, strlen(tcon)+1, &tsid);
+ length = security_context_to_sid(tcon, strlen(tcon) + 1, &tsid);
if (length < 0)
goto out2;
@@ -609,11 +609,11 @@ static ssize_t sel_write_relabel(struct file *file, char *buf, size_t size)
return length;
length = -ENOMEM;
- scon = kzalloc(size+1, GFP_KERNEL);
+ scon = kzalloc(size + 1, GFP_KERNEL);
if (!scon)
return length;
- tcon = kzalloc(size+1, GFP_KERNEL);
+ tcon = kzalloc(size + 1, GFP_KERNEL);
if (!tcon)
goto out;
@@ -621,10 +621,10 @@ static ssize_t sel_write_relabel(struct file *file, char *buf, size_t size)
if (sscanf(buf, "%s %s %hu", scon, tcon, &tclass) != 3)
goto out2;
- length = security_context_to_sid(scon, strlen(scon)+1, &ssid);
+ length = security_context_to_sid(scon, strlen(scon) + 1, &ssid);
if (length < 0)
goto out2;
- length = security_context_to_sid(tcon, strlen(tcon)+1, &tsid);
+ length = security_context_to_sid(tcon, strlen(tcon) + 1, &tsid);
if (length < 0)
goto out2;
@@ -666,11 +666,11 @@ static ssize_t sel_write_user(struct file *file, char *buf, size_t size)
return length;
length = -ENOMEM;
- con = kzalloc(size+1, GFP_KERNEL);
+ con = kzalloc(size + 1, GFP_KERNEL);
if (!con)
return length;
- user = kzalloc(size+1, GFP_KERNEL);
+ user = kzalloc(size + 1, GFP_KERNEL);
if (!user)
goto out;
@@ -678,7 +678,7 @@ static ssize_t sel_write_user(struct file *file, char *buf, size_t size)
if (sscanf(buf, "%s %s", con, user) != 2)
goto out2;
- length = security_context_to_sid(con, strlen(con)+1, &sid);
+ length = security_context_to_sid(con, strlen(con) + 1, &sid);
if (length < 0)
goto out2;
@@ -727,11 +727,11 @@ static ssize_t sel_write_member(struct file *file, char *buf, size_t size)
return length;
length = -ENOMEM;
- scon = kzalloc(size+1, GFP_KERNEL);
+ scon = kzalloc(size + 1, GFP_KERNEL);
if (!scon)
return length;
- tcon = kzalloc(size+1, GFP_KERNEL);
+ tcon = kzalloc(size + 1, GFP_KERNEL);
if (!tcon)
goto out;
@@ -739,10 +739,10 @@ static ssize_t sel_write_member(struct file *file, char *buf, size_t size)
if (sscanf(buf, "%s %s %hu", scon, tcon, &tclass) != 3)
goto out2;
- length = security_context_to_sid(scon, strlen(scon)+1, &ssid);
+ length = security_context_to_sid(scon, strlen(scon) + 1, &ssid);
if (length < 0)
goto out2;
- length = security_context_to_sid(tcon, strlen(tcon)+1, &tsid);
+ length = security_context_to_sid(tcon, strlen(tcon) + 1, &tsid);
if (length < 0)
goto out2;
@@ -1401,7 +1401,7 @@ static int sel_make_perm_files(char *objclass, int classvalue,
}
inode->i_fop = &sel_perm_ops;
/* i+1 since perm values are 1-indexed */
- inode->i_ino = sel_perm_to_ino(classvalue, i+1);
+ inode->i_ino = sel_perm_to_ino(classvalue, i + 1);
d_add(dentry, inode);
}
@@ -1489,7 +1489,7 @@ static int sel_make_classes(void)
goto out;
/* +2 since classes are 1-indexed */
- last_class_ino = sel_class_to_ino(nclasses+2);
+ last_class_ino = sel_class_to_ino(nclasses + 2);
for (i = 0; i < nclasses; i++) {
struct dentry *class_name_dir;
@@ -1506,7 +1506,7 @@ static int sel_make_classes(void)
goto out1;
/* i+1 since class values are 1-indexed */
- rc = sel_make_class_dir_entries(classes[i], i+1,
+ rc = sel_make_class_dir_entries(classes[i], i + 1,
class_name_dir);
if (rc)
goto out1;
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index 372b773f821..b4eff7a60c5 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -255,7 +255,7 @@ int mls_context_to_sid(struct policydb *pol,
if (!pol->mls_enabled) {
if (def_sid != SECSID_NULL && oldc)
- *scontext += strlen(*scontext)+1;
+ *scontext += strlen(*scontext) + 1;
return 0;
}
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 23c6e53c102..4f584fb71ef 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -40,7 +40,7 @@
#define _DEBUG_HASHES
#ifdef DEBUG_HASHES
-static char *symtab_name[SYM_NUM] = {
+static const char *symtab_name[SYM_NUM] = {
"common prefixes",
"classes",
"roles",
@@ -156,7 +156,7 @@ static int roles_init(struct policydb *p)
rc = -EINVAL;
goto out_free_role;
}
- key = kmalloc(strlen(OBJECT_R)+1, GFP_KERNEL);
+ key = kmalloc(strlen(OBJECT_R) + 1, GFP_KERNEL);
if (!key) {
rc = -ENOMEM;
goto out_free_role;
@@ -2195,7 +2195,7 @@ int policydb_read(struct policydb *p, void *fp)
rangetr_hash_eval(p->range_tr);
}
- p->type_attr_map = kmalloc(p->p_types.nprim*sizeof(struct ebitmap), GFP_KERNEL);
+ p->type_attr_map = kmalloc(p->p_types.nprim * sizeof(struct ebitmap), GFP_KERNEL);
if (!p->type_attr_map)
goto bad;
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index cf27b3ee1a9..1de60ce90d9 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -274,15 +274,15 @@ static int constraint_expr_eval(struct context *scontext,
case CEXPR_AND:
BUG_ON(sp < 1);
sp--;
- s[sp] &= s[sp+1];
+ s[sp] &= s[sp + 1];
break;
case CEXPR_OR:
BUG_ON(sp < 1);
sp--;
- s[sp] |= s[sp+1];
+ s[sp] |= s[sp + 1];
break;
case CEXPR_ATTR:
- if (sp == (CEXPR_MAXDEPTH-1))
+ if (sp == (CEXPR_MAXDEPTH - 1))
return 0;
switch (e->attr) {
case CEXPR_USER:
@@ -1216,7 +1216,7 @@ static int security_context_to_sid_core(const char *scontext, u32 scontext_len,
*sid = SECSID_NULL;
/* Copy the string so that we can modify the copy as we parse it. */
- scontext2 = kmalloc(scontext_len+1, gfp_flags);
+ scontext2 = kmalloc(scontext_len + 1, gfp_flags);
if (!scontext2)
return -ENOMEM;
memcpy(scontext2, scontext, scontext_len);
@@ -1760,22 +1760,28 @@ int security_load_policy(void *data, size_t len)
if (!ss_initialized) {
avtab_cache_init();
- if (policydb_read(&policydb, fp)) {
+ rc = policydb_read(&policydb, fp);
+ if (rc) {
avtab_cache_destroy();
- return -EINVAL;
+ return rc;
}
- if (selinux_set_mapping(&policydb, secclass_map,
- &current_mapping,
- &current_mapping_size)) {
+
+ rc = selinux_set_mapping(&policydb, secclass_map,
+ &current_mapping,
+ &current_mapping_size);
+ if (rc) {
policydb_destroy(&policydb);
avtab_cache_destroy();
- return -EINVAL;
+ return rc;
}
- if (policydb_load_isids(&policydb, &sidtab)) {
+
+ rc = policydb_load_isids(&policydb, &sidtab);
+ if (rc) {
policydb_destroy(&policydb);
avtab_cache_destroy();
- return -EINVAL;
+ return rc;
}
+
security_load_policycaps();
ss_initialized = 1;
seqno = ++latest_granting;
@@ -1791,8 +1797,9 @@ int security_load_policy(void *data, size_t len)
sidtab_hash_eval(&sidtab, "sids");
#endif
- if (policydb_read(&newpolicydb, fp))
- return -EINVAL;
+ rc = policydb_read(&newpolicydb, fp);
+ if (rc)
+ return rc;
/* If switching between different policy types, log MLS status */
if (policydb.mls_enabled && !newpolicydb.mls_enabled)
@@ -1807,8 +1814,8 @@ int security_load_policy(void *data, size_t len)
return rc;
}
- if (selinux_set_mapping(&newpolicydb, secclass_map,
- &map, &map_size))
+ rc = selinux_set_mapping(&newpolicydb, secclass_map, &map, &map_size);
+ if (rc)
goto err;
rc = security_preserve_bools(&newpolicydb);
@@ -1819,10 +1826,10 @@ int security_load_policy(void *data, size_t len)
/* Clone the SID table. */
sidtab_shutdown(&sidtab);
- if (sidtab_map(&sidtab, clone_sid, &newsidtab)) {
- rc = -ENOMEM;
+
+ rc = sidtab_map(&sidtab, clone_sid, &newsidtab);
+ if (rc)
goto err;
- }
/*
* Convert the internal representations of contexts
@@ -2101,9 +2108,9 @@ int security_get_user_sids(u32 fromsid,
ebitmap_for_each_positive_bit(&user->roles, rnode, i) {
role = policydb.role_val_to_struct[i];
- usercon.role = i+1;
+ usercon.role = i + 1;
ebitmap_for_each_positive_bit(&role->types, tnode, j) {
- usercon.type = j+1;
+ usercon.type = j + 1;
if (mls_setup_user_range(fromcon, user, &usercon))
continue;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-04 00:33:19 +0000