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-rw-r--r--security/selinux/hooks.c495
1 files changed, 245 insertions, 250 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index c507f67e2ba7..1bf2543ea942 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4,22 +4,22 @@
* This file contains the SELinux hook function implementations.
*
* Authors: Stephen Smalley, <sds@epoch.ncsc.mil>
- * Chris Vance, <cvance@nai.com>
- * Wayne Salamon, <wsalamon@nai.com>
- * James Morris <jmorris@redhat.com>
+ * Chris Vance, <cvance@nai.com>
+ * Wayne Salamon, <wsalamon@nai.com>
+ * James Morris <jmorris@redhat.com>
*
* Copyright (C) 2001,2002 Networks Associates Technology, Inc.
* Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
* Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
- * <dgoeddel@trustedcs.com>
+ * <dgoeddel@trustedcs.com>
* Copyright (C) 2006, 2007 Hewlett-Packard Development Company, L.P.
- * Paul Moore <paul.moore@hp.com>
+ * Paul Moore <paul.moore@hp.com>
* Copyright (C) 2007 Hitachi Software Engineering Co., Ltd.
- * Yuichi Nakamura <ynakam@hitachisoft.jp>
+ * Yuichi Nakamura <ynakam@hitachisoft.jp>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
- * as published by the Free Software Foundation.
+ * as published by the Free Software Foundation.
*/
#include <linux/init.h>
@@ -99,11 +99,11 @@ extern struct security_operations *security_ops;
atomic_t selinux_secmark_refcount = ATOMIC_INIT(0);
#ifdef CONFIG_SECURITY_SELINUX_DEVELOP
-int selinux_enforcing = 0;
+int selinux_enforcing;
static int __init enforcing_setup(char *str)
{
- selinux_enforcing = simple_strtol(str,NULL,0);
+ selinux_enforcing = simple_strtol(str, NULL, 0);
return 1;
}
__setup("enforcing=", enforcing_setup);
@@ -123,13 +123,13 @@ int selinux_enabled = 1;
#endif
/* Original (dummy) security module. */
-static struct security_operations *original_ops = NULL;
+static struct security_operations *original_ops;
/* Minimal support for a secondary security module,
just to allow the use of the dummy or capability modules.
The owlsm module can alternatively be used as a secondary
module as long as CONFIG_OWLSM_FD is not enabled. */
-static struct security_operations *secondary_ops = NULL;
+static struct security_operations *secondary_ops;
/* Lists of inode and superblock security structures initialized
before the policy was loaded. */
@@ -1054,7 +1054,7 @@ static int selinux_proc_get_sid(struct proc_dir_entry *de,
int buflen, rc;
char *buffer, *path, *end;
- buffer = (char*)__get_free_page(GFP_KERNEL);
+ buffer = (char *)__get_free_page(GFP_KERNEL);
if (!buffer)
return -ENOMEM;
@@ -1305,7 +1305,7 @@ static int task_has_capability(struct task_struct *tsk,
tsec = tsk->security;
- AVC_AUDIT_DATA_INIT(&ad,CAP);
+ AVC_AUDIT_DATA_INIT(&ad, CAP);
ad.tsk = tsk;
ad.u.cap = cap;
@@ -1348,7 +1348,7 @@ static int inode_has_perm(struct task_struct *tsk,
struct inode_security_struct *isec;
struct avc_audit_data ad;
- if (unlikely (IS_PRIVATE (inode)))
+ if (unlikely(IS_PRIVATE(inode)))
return 0;
tsec = tsk->security;
@@ -1373,7 +1373,7 @@ static inline int dentry_has_perm(struct task_struct *tsk,
{
struct inode *inode = dentry->d_inode;
struct avc_audit_data ad;
- AVC_AUDIT_DATA_INIT(&ad,FS);
+ AVC_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.mnt = mnt;
ad.u.fs.path.dentry = dentry;
return inode_has_perm(tsk, inode, av, &ad);
@@ -1470,9 +1470,9 @@ static int may_create_key(u32 ksid,
return avc_has_perm(tsec->sid, ksid, SECCLASS_KEY, KEY__CREATE, NULL);
}
-#define MAY_LINK 0
-#define MAY_UNLINK 1
-#define MAY_RMDIR 2
+#define MAY_LINK 0
+#define MAY_UNLINK 1
+#define MAY_RMDIR 2
/* Check whether a task can link, unlink, or rmdir a file/directory. */
static int may_link(struct inode *dir,
@@ -1676,7 +1676,7 @@ static int selinux_ptrace(struct task_struct *parent, struct task_struct *child)
{
int rc;
- rc = secondary_ops->ptrace(parent,child);
+ rc = secondary_ops->ptrace(parent, child);
if (rc)
return rc;
@@ -1684,7 +1684,7 @@ static int selinux_ptrace(struct task_struct *parent, struct task_struct *child)
}
static int selinux_capget(struct task_struct *target, kernel_cap_t *effective,
- kernel_cap_t *inheritable, kernel_cap_t *permitted)
+ kernel_cap_t *inheritable, kernel_cap_t *permitted)
{
int error;
@@ -1696,7 +1696,7 @@ static int selinux_capget(struct task_struct *target, kernel_cap_t *effective,
}
static int selinux_capset_check(struct task_struct *target, kernel_cap_t *effective,
- kernel_cap_t *inheritable, kernel_cap_t *permitted)
+ kernel_cap_t *inheritable, kernel_cap_t *permitted)
{
int error;
@@ -1708,7 +1708,7 @@ static int selinux_capset_check(struct task_struct *target, kernel_cap_t *effect
}
static void selinux_capset_set(struct task_struct *target, kernel_cap_t *effective,
- kernel_cap_t *inheritable, kernel_cap_t *permitted)
+ kernel_cap_t *inheritable, kernel_cap_t *permitted)
{
secondary_ops->capset_set(target, effective, inheritable, permitted);
}
@@ -1721,7 +1721,7 @@ static int selinux_capable(struct task_struct *tsk, int cap)
if (rc)
return rc;
- return task_has_capability(tsk,cap);
+ return task_has_capability(tsk, cap);
}
static int selinux_sysctl_get_sid(ctl_table *table, u16 tclass, u32 *sid)
@@ -1730,7 +1730,7 @@ static int selinux_sysctl_get_sid(ctl_table *table, u16 tclass, u32 *sid)
char *buffer, *path, *end;
rc = -ENOMEM;
- buffer = (char*)__get_free_page(GFP_KERNEL);
+ buffer = (char *)__get_free_page(GFP_KERNEL);
if (!buffer)
goto out;
@@ -1788,7 +1788,7 @@ static int selinux_sysctl(ctl_table *table, int op)
/* The op values are "defined" in sysctl.c, thereby creating
* a bad coupling between this module and sysctl.c */
- if(op == 001) {
+ if (op == 001) {
error = avc_has_perm(tsec->sid, tsid,
SECCLASS_DIR, DIR__SEARCH, NULL);
} else {
@@ -1800,7 +1800,7 @@ static int selinux_sysctl(ctl_table *table, int op)
if (av)
error = avc_has_perm(tsec->sid, tsid,
SECCLASS_FILE, av, NULL);
- }
+ }
return error;
}
@@ -1813,25 +1813,23 @@ static int selinux_quotactl(int cmds, int type, int id, struct super_block *sb)
return 0;
switch (cmds) {
- case Q_SYNC:
- case Q_QUOTAON:
- case Q_QUOTAOFF:
- case Q_SETINFO:
- case Q_SETQUOTA:
- rc = superblock_has_perm(current,
- sb,
- FILESYSTEM__QUOTAMOD, NULL);
- break;
- case Q_GETFMT:
- case Q_GETINFO:
- case Q_GETQUOTA:
- rc = superblock_has_perm(current,
- sb,
- FILESYSTEM__QUOTAGET, NULL);
- break;
- default:
- rc = 0; /* let the kernel handle invalid cmds */
- break;
+ case Q_SYNC:
+ case Q_QUOTAON:
+ case Q_QUOTAOFF:
+ case Q_SETINFO:
+ case Q_SETQUOTA:
+ rc = superblock_has_perm(current, sb, FILESYSTEM__QUOTAMOD,
+ NULL);
+ break;
+ case Q_GETFMT:
+ case Q_GETINFO:
+ case Q_GETQUOTA:
+ rc = superblock_has_perm(current, sb, FILESYSTEM__QUOTAGET,
+ NULL);
+ break;
+ default:
+ rc = 0; /* let the kernel handle invalid cmds */
+ break;
}
return rc;
}
@@ -1850,23 +1848,23 @@ static int selinux_syslog(int type)
return rc;
switch (type) {
- case 3: /* Read last kernel messages */
- case 10: /* Return size of the log buffer */
- rc = task_has_system(current, SYSTEM__SYSLOG_READ);
- break;
- case 6: /* Disable logging to console */
- case 7: /* Enable logging to console */
- case 8: /* Set level of messages printed to console */
- rc = task_has_system(current, SYSTEM__SYSLOG_CONSOLE);
- break;
- case 0: /* Close log */
- case 1: /* Open log */
- case 2: /* Read from log */
- case 4: /* Read/clear last kernel messages */
- case 5: /* Clear ring buffer */
- default:
- rc = task_has_system(current, SYSTEM__SYSLOG_MOD);
- break;
+ case 3: /* Read last kernel messages */
+ case 10: /* Return size of the log buffer */
+ rc = task_has_system(current, SYSTEM__SYSLOG_READ);
+ break;
+ case 6: /* Disable logging to console */
+ case 7: /* Enable logging to console */
+ case 8: /* Set level of messages printed to console */
+ rc = task_has_system(current, SYSTEM__SYSLOG_CONSOLE);
+ break;
+ case 0: /* Close log */
+ case 1: /* Open log */
+ case 2: /* Read from log */
+ case 4: /* Read/clear last kernel messages */
+ case 5: /* Clear ring buffer */
+ default:
+ rc = task_has_system(current, SYSTEM__SYSLOG_MOD);
+ break;
}
return rc;
}
@@ -1972,7 +1970,7 @@ static int selinux_bprm_set_security(struct linux_binprm *bprm)
} else {
/* Check for a default transition on this program. */
rc = security_transition_sid(tsec->sid, isec->sid,
- SECCLASS_PROCESS, &newsid);
+ SECCLASS_PROCESS, &newsid);
if (rc)
return rc;
}
@@ -1983,7 +1981,7 @@ static int selinux_bprm_set_security(struct linux_binprm *bprm)
if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID)
newsid = tsec->sid;
- if (tsec->sid == newsid) {
+ if (tsec->sid == newsid) {
rc = avc_has_perm(tsec->sid, isec->sid,
SECCLASS_FILE, FILE__EXECUTE_NO_TRANS, &ad);
if (rc)
@@ -2011,13 +2009,13 @@ static int selinux_bprm_set_security(struct linux_binprm *bprm)
return 0;
}
-static int selinux_bprm_check_security (struct linux_binprm *bprm)
+static int selinux_bprm_check_security(struct linux_binprm *bprm)
{
return secondary_ops->bprm_check_security(bprm);
}
-static int selinux_bprm_secureexec (struct linux_binprm *bprm)
+static int selinux_bprm_secureexec(struct linux_binprm *bprm)
{
struct task_security_struct *tsec = current->security;
int atsecure = 0;
@@ -2044,7 +2042,7 @@ extern struct vfsmount *selinuxfs_mount;
extern struct dentry *selinux_null;
/* Derived from fs/exec.c:flush_old_files. */
-static inline void flush_unauthorized_files(struct files_struct * files)
+static inline void flush_unauthorized_files(struct files_struct *files)
{
struct avc_audit_data ad;
struct file *file, *devnull = NULL;
@@ -2079,7 +2077,7 @@ static inline void flush_unauthorized_files(struct files_struct * files)
/* Revalidate access to inherited open files. */
- AVC_AUDIT_DATA_INIT(&ad,FS);
+ AVC_AUDIT_DATA_INIT(&ad, FS);
spin_lock(&files->file_lock);
for (;;) {
@@ -2095,7 +2093,7 @@ static inline void flush_unauthorized_files(struct files_struct * files)
if (!set)
continue;
spin_unlock(&files->file_lock);
- for ( ; set ; i++,set >>= 1) {
+ for ( ; set ; i++, set >>= 1) {
if (set & 1) {
file = fget(i);
if (!file)
@@ -2252,7 +2250,7 @@ static void selinux_bprm_post_apply_creds(struct linux_binprm *bprm)
for (i = 0; i < RLIM_NLIMITS; i++) {
rlim = current->signal->rlim + i;
initrlim = init_task.signal->rlim+i;
- rlim->rlim_cur = min(rlim->rlim_max,initrlim->rlim_cur);
+ rlim->rlim_cur = min(rlim->rlim_max, initrlim->rlim_cur);
}
if (current->signal->rlim[RLIMIT_CPU].rlim_cur != RLIM_INFINITY) {
/*
@@ -2307,16 +2305,15 @@ static inline void take_option(char **to, char *from, int *first, int len)
*to += len;
}
-static inline void take_selinux_option(char **to, char *from, int *first,
- int len)
+static inline void take_selinux_option(char **to, char *from, int *first,
+ int len)
{
int current_size = 0;
if (!*first) {
**to = '|';
*to += 1;
- }
- else
+ } else
*first = 0;
while (current_size < len) {
@@ -2380,7 +2377,7 @@ static int selinux_sb_kern_mount(struct super_block *sb, void *data)
if (rc)
return rc;
- AVC_AUDIT_DATA_INIT(&ad,FS);
+ AVC_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.dentry = sb->s_root;
return superblock_has_perm(current, sb, FILESYSTEM__MOUNT, &ad);
}
@@ -2389,16 +2386,16 @@ static int selinux_sb_statfs(struct dentry *dentry)
{
struct avc_audit_data ad;
- AVC_AUDIT_DATA_INIT(&ad,FS);
+ AVC_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.dentry = dentry->d_sb->s_root;
return superblock_has_perm(current, dentry->d_sb, FILESYSTEM__GETATTR, &ad);
}
-static int selinux_mount(char * dev_name,
- struct nameidata *nd,
- char * type,
- unsigned long flags,
- void * data)
+static int selinux_mount(char *dev_name,
+ struct nameidata *nd,
+ char *type,
+ unsigned long flags,
+ void *data)
{
int rc;
@@ -2408,10 +2405,10 @@ static int selinux_mount(char * dev_name,
if (flags & MS_REMOUNT)
return superblock_has_perm(current, nd->path.mnt->mnt_sb,
- FILESYSTEM__REMOUNT, NULL);
+ FILESYSTEM__REMOUNT, NULL);
else
return dentry_has_perm(current, nd->path.mnt, nd->path.dentry,
- FILE__MOUNTON);
+ FILE__MOUNTON);
}
static int selinux_umount(struct vfsmount *mnt, int flags)
@@ -2422,8 +2419,8 @@ static int selinux_umount(struct vfsmount *mnt, int flags)
if (rc)
return rc;
- return superblock_has_perm(current,mnt->mnt_sb,
- FILESYSTEM__UNMOUNT,NULL);
+ return superblock_has_perm(current, mnt->mnt_sb,
+ FILESYSTEM__UNMOUNT, NULL);
}
/* inode security operations */
@@ -2509,7 +2506,7 @@ static int selinux_inode_link(struct dentry *old_dentry, struct inode *dir, stru
{
int rc;
- rc = secondary_ops->inode_link(old_dentry,dir,new_dentry);
+ rc = secondary_ops->inode_link(old_dentry, dir, new_dentry);
if (rc)
return rc;
return may_link(dir, old_dentry, MAY_LINK);
@@ -2552,7 +2549,7 @@ static int selinux_inode_mknod(struct inode *dir, struct dentry *dentry, int mod
}
static int selinux_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
- struct inode *new_inode, struct dentry *new_dentry)
+ struct inode *new_inode, struct dentry *new_dentry)
{
return may_rename(old_inode, old_dentry, new_inode, new_dentry);
}
@@ -2566,7 +2563,7 @@ static int selinux_inode_follow_link(struct dentry *dentry, struct nameidata *na
{
int rc;
- rc = secondary_ops->inode_follow_link(dentry,nameidata);
+ rc = secondary_ops->inode_follow_link(dentry, nameidata);
if (rc)
return rc;
return dentry_has_perm(current, NULL, dentry, FILE__READ);
@@ -2652,7 +2649,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, char *name, void *value
if (!is_owner_or_cap(inode))
return -EPERM;
- AVC_AUDIT_DATA_INIT(&ad,FS);
+ AVC_AUDIT_DATA_INIT(&ad, FS);
ad.u.fs.path.dentry = dentry;
rc = avc_has_perm(tsec->sid, isec->sid, isec->sclass,
@@ -2670,7 +2667,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, char *name, void *value
return rc;
rc = security_validate_transition(isec->sid, newsid, tsec->sid,
- isec->sclass);
+ isec->sclass);
if (rc)
return rc;
@@ -2682,7 +2679,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, char *name, void *value
}
static void selinux_inode_post_setxattr(struct dentry *dentry, char *name,
- void *value, size_t size, int flags)
+ void *value, size_t size, int flags)
{
struct inode *inode = dentry->d_inode;
struct inode_security_struct *isec = inode->i_security;
@@ -2705,17 +2702,17 @@ static void selinux_inode_post_setxattr(struct dentry *dentry, char *name,
return;
}
-static int selinux_inode_getxattr (struct dentry *dentry, char *name)
+static int selinux_inode_getxattr(struct dentry *dentry, char *name)
{
return dentry_has_perm(current, NULL, dentry, FILE__GETATTR);
}
-static int selinux_inode_listxattr (struct dentry *dentry)
+static int selinux_inode_listxattr(struct dentry *dentry)
{
return dentry_has_perm(current, NULL, dentry, FILE__GETATTR);
}
-static int selinux_inode_removexattr (struct dentry *dentry, char *name)
+static int selinux_inode_removexattr(struct dentry *dentry, char *name)
{
if (strcmp(name, XATTR_NAME_SELINUX))
return selinux_inode_setotherxattr(dentry, name);
@@ -2756,7 +2753,7 @@ out_nofree:
}
static int selinux_inode_setsecurity(struct inode *inode, const char *name,
- const void *value, size_t size, int flags)
+ const void *value, size_t size, int flags)
{
struct inode_security_struct *isec = inode->i_security;
u32 newsid;
@@ -2768,7 +2765,7 @@ static int selinux_inode_setsecurity(struct inode *inode, const char *name,
if (!value || !size)
return -EACCES;
- rc = security_context_to_sid((void*)value, size, &newsid);
+ rc = security_context_to_sid((void *)value, size, &newsid);
if (rc)
return rc;
@@ -2859,42 +2856,41 @@ static int selinux_file_ioctl(struct file *file, unsigned int cmd,
int error = 0;
switch (cmd) {
- case FIONREAD:
- /* fall through */
- case FIBMAP:
- /* fall through */
- case FIGETBSZ:
- /* fall through */
- case EXT2_IOC_GETFLAGS:
- /* fall through */
- case EXT2_IOC_GETVERSION:
- error = file_has_perm(current, file, FILE__GETATTR);
- break;
-
- case EXT2_IOC_SETFLAGS:
- /* fall through */
- case EXT2_IOC_SETVERSION:
- error = file_has_perm(current, file, FILE__SETATTR);
- break;
+ case FIONREAD:
+ /* fall through */
+ case FIBMAP:
+ /* fall through */
+ case FIGETBSZ:
+ /* fall through */
+ case EXT2_IOC_GETFLAGS:
+ /* fall through */
+ case EXT2_IOC_GETVERSION:
+ error = file_has_perm(current, file, FILE__GETATTR);
+ break;
- /* sys_ioctl() checks */
- case FIONBIO:
- /* fall through */
- case FIOASYNC:
- error = file_has_perm(current, file, 0);
- break;
+ case EXT2_IOC_SETFLAGS:
+ /* fall through */
+ case EXT2_IOC_SETVERSION:
+ error = file_has_perm(current, file, FILE__SETATTR);
+ break;
- case KDSKBENT:
- case KDSKBSENT:
- error = task_has_capability(current,CAP_SYS_TTY_CONFIG);
- break;
+ /* sys_ioctl() checks */
+ case FIONBIO:
+ /* fall through */
+ case FIOASYNC:
+ error = file_has_perm(current, file, 0);
+ break;
- /* default case assumes that the command will go
- * to the file's ioctl() function.
- */
- default:
- error = file_has_perm(current, file, FILE__IOCTL);
+ case KDSKBENT:
+ case KDSKBSENT:
+ error = task_has_capability(current, CAP_SYS_TTY_CONFIG);
+ break;
+ /* default case assumes that the command will go
+ * to the file's ioctl() function.
+ */
+ default:
+ error = file_has_perm(current, file, FILE__IOCTL);
}
return error;
}
@@ -2935,7 +2931,7 @@ static int selinux_file_mmap(struct file *file, unsigned long reqprot,
unsigned long addr, unsigned long addr_only)
{
int rc = 0;
- u32 sid = ((struct task_security_struct*)(current->security))->sid;
+ u32 sid = ((struct task_security_struct *)(current->security))->sid;
if (addr < mmap_min_addr)
rc = avc_has_perm(sid, sid, SECCLASS_MEMPROTECT,
@@ -3004,39 +3000,39 @@ static int selinux_file_fcntl(struct file *file, unsigned int cmd,
int err = 0;
switch (cmd) {
- case F_SETFL:
- if (!file->f_path.dentry || !file->f_path.dentry->d_inode) {
- err = -EINVAL;
- break;
- }
+ case F_SETFL:
+ if (!file->f_path.dentry || !file->f_path.dentry->d_inode) {
+ err = -EINVAL;
+ break;
+ }
- if ((file->f_flags & O_APPEND) && !(arg & O_APPEND)) {
- err = file_has_perm(current, file,FILE__WRITE);
- break;
- }
- /* fall through */
- case F_SETOWN:
- case F_SETSIG:
- case F_GETFL:
- case F_GETOWN:
- case F_GETSIG:
- /* Just check FD__USE permission */
- err = file_has_perm(current, file, 0);
+ if ((file->f_flags & O_APPEND) && !(arg & O_APPEND)) {
+ err = file_has_perm(current, file, FILE__WRITE);
break;
- case F_GETLK:
- case F_SETLK:
- case F_SETLKW:
+ }
+ /* fall through */
+ case F_SETOWN:
+ case F_SETSIG:
+ case F_GETFL:
+ case F_GETOWN:
+ case F_GETSIG:
+ /* Just check FD__USE permission */
+ err = file_has_perm(current, file, 0);
+ break;
+ case F_GETLK:
+ case F_SETLK:
+ case F_SETLKW:
#if BITS_PER_LONG == 32
- case F_GETLK64:
- case F_SETLK64:
- case F_SETLKW64:
+ case F_GETLK64:
+ case F_SETLK64:
+ case F_SETLKW64:
#endif
- if (!file->f_path.dentry || !file->f_path.dentry->d_inode) {
- err = -EINVAL;
- break;
- }
- err = file_has_perm(current, file, FILE__LOCK);
+ if (!file->f_path.dentry || !file->f_path.dentry->d_inode) {
+ err = -EINVAL;
break;
+ }
+ err = file_has_perm(current, file, FILE__LOCK);
+ break;
}
return err;
@@ -3057,13 +3053,13 @@ static int selinux_file_set_fowner(struct file *file)
static int selinux_file_send_sigiotask(struct task_struct *tsk,
struct fown_struct *fown, int signum)
{
- struct file *file;
+ struct file *file;
u32 perm;
struct task_security_struct *tsec;
struct file_security_struct *fsec;
/* struct fown_struct is never outside the context of a struct file */
- file = container_of(fown, struct file, f_owner);
+ file = container_of(fown, struct file, f_owner);
tsec = tsk->security;
fsec = file->f_security;
@@ -3165,7 +3161,7 @@ static int selinux_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
static int selinux_task_post_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
{
- return secondary_ops->task_post_setuid(id0,id1,id2,flags);
+ return secondary_ops->task_post_setuid(id0, id1, id2, flags);
}
static int selinux_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
@@ -3209,7 +3205,7 @@ static int selinux_task_setnice(struct task_struct *p, int nice)
if (rc)
return rc;
- return task_has_perm(current,p, PROCESS__SETSCHED);
+ return task_has_perm(current, p, PROCESS__SETSCHED);
}
static int selinux_task_setioprio(struct task_struct *p, int ioprio)
@@ -3313,7 +3309,7 @@ static int selinux_task_wait(struct task_struct *p)
static void selinux_task_reparent_to_init(struct task_struct *p)
{
- struct task_security_struct *tsec;
+ struct task_security_struct *tsec;
secondary_ops->task_reparent_to_init(p);
@@ -3358,11 +3354,11 @@ static int selinux_parse_skb_ipv4(struct sk_buff *skb,
*proto = ih->protocol;
switch (ih->protocol) {
- case IPPROTO_TCP: {
- struct tcphdr _tcph, *th;
+ case IPPROTO_TCP: {
+ struct tcphdr _tcph, *th;
- if (ntohs(ih->frag_off) & IP_OFFSET)
- break;
+ if (ntohs(ih->frag_off) & IP_OFFSET)
+ break;
offset += ihlen;
th = skb_header_pointer(skb, offset, sizeof(_tcph), &_tcph);
@@ -3372,23 +3368,23 @@ static int selinux_parse_skb_ipv4(struct sk_buff *skb,
ad->u.net.sport = th->source;
ad->u.net.dport = th->dest;
break;
- }
-
- case IPPROTO_UDP: {
- struct udphdr _udph, *uh;
-
- if (ntohs(ih->frag_off) & IP_OFFSET)
- break;
-
+ }
+
+ case IPPROTO_UDP: {
+ struct udphdr _udph, *uh;
+
+ if (ntohs(ih->frag_off) & IP_OFFSET)
+ break;
+
offset += ihlen;
- uh = skb_header_pointer(skb, offset, sizeof(_udph), &_udph);
+ uh = skb_header_pointer(skb, offset, sizeof(_udph), &_udph);
if (uh == NULL)
- break;
+ break;
- ad->u.net.sport = uh->source;
- ad->u.net.dport = uh->dest;
- break;
- }
+ ad->u.net.sport = uh->source;
+ ad->u.net.dport = uh->dest;
+ break;
+ }
case IPPROTO_DCCP: {
struct dccp_hdr _dccph, *dh;
@@ -3404,11 +3400,11 @@ static int selinux_parse_skb_ipv4(struct sk_buff *skb,
ad->u.net.sport = dh->dccph_sport;
ad->u.net.dport = dh->dccph_dport;
break;
- }
+ }
- default:
- break;
- }
+ default:
+ break;
+ }
out:
return ret;
}
@@ -3443,7 +3439,7 @@ static int selinux_parse_skb_ipv6(struct sk_buff *skb,
switch (nexthdr) {
case IPPROTO_TCP: {
- struct tcphdr _tcph, *th;
+ struct tcphdr _tcph, *th;
th = skb_header_pointer(skb, offset, sizeof(_tcph), &_tcph);
if (th == NULL)
@@ -3476,7 +3472,7 @@ static int selinux_parse_skb_ipv6(struct sk_buff *skb,
ad->u.net.sport = dh->dccph_sport;
ad->u.net.dport = dh->dccph_dport;
break;
- }
+ }
/* includes fragments */
default:
@@ -3574,7 +3570,7 @@ static int socket_has_perm(struct task_struct *task, struct socket *sock,
if (isec->sid == SECINITSID_KERNEL)
goto out;
- AVC_AUDIT_DATA_INIT(&ad,NET);
+ AVC_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sk = sock->sk;
err = avc_has_perm(tsec->sid, isec->sid, isec->sclass, perms, &ad);
@@ -3684,7 +3680,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
snum, &sid);
if (err)
goto out;
- AVC_AUDIT_DATA_INIT(&ad,NET);
+ AVC_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sport = htons(snum);
ad.u.net.family = family;
err = avc_has_perm(isec->sid, sid,
@@ -3694,12 +3690,12 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
goto out;
}
}
-
- switch(isec->sclass) {
+
+ switch (isec->sclass) {
case SECCLASS_TCP_SOCKET:
node_perm = TCP_SOCKET__NODE_BIND;
break;
-
+
case SECCLASS_UDP_SOCKET:
node_perm = UDP_SOCKET__NODE_BIND;
break;
@@ -3712,12 +3708,12 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
node_perm = RAWIP_SOCKET__NODE_BIND;
break;
}
-
+
err = sel_netnode_sid(addrp, family, &sid);
if (err)
goto out;
-
- AVC_AUDIT_DATA_INIT(&ad,NET);
+
+ AVC_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sport = htons(snum);
ad.u.net.family = family;
@@ -3727,7 +3723,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
ipv6_addr_copy(&ad.u.net.v6info.saddr, &addr6->sin6_addr);
err = avc_has_perm(isec->sid, sid,
- isec->sclass, node_perm, &ad);
+ isec->sclass, node_perm, &ad);
if (err)
goto out;
}
@@ -3776,7 +3772,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address,
perm = (isec->sclass == SECCLASS_TCP_SOCKET) ?
TCP_SOCKET__NAME_CONNECT : DCCP_SOCKET__NAME_CONNECT;
- AVC_AUDIT_DATA_INIT(&ad,NET);
+ AVC_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.dport = htons(snum);
ad.u.net.family = sk->sk_family;
err = avc_has_perm(isec->sid, sid, isec->sclass, perm, &ad);
@@ -3814,7 +3810,7 @@ static int selinux_socket_accept(struct socket *sock, struct socket *newsock)
}
static int selinux_socket_sendmsg(struct socket *sock, struct msghdr *msg,
- int size)
+ int size)
{
int rc;
@@ -3841,7 +3837,7 @@ static int selinux_socket_getpeername(struct socket *sock)
return socket_has_perm(current, sock, SOCKET__GETATTR);
}
-static int selinux_socket_setsockopt(struct socket *sock,int level,int optname)
+static int selinux_socket_setsockopt(struct socket *sock, int level, int optname)
{
int err;
@@ -3880,7 +3876,7 @@ static int selinux_socket_unix_stream_connect(struct socket *sock,
isec = SOCK_INODE(sock)->i_security;
other_isec = SOCK_INODE(other)->i_security;
- AVC_AUDIT_DATA_INIT(&ad,NET);
+ AVC_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sk = other->sk;
err = avc_has_perm(isec->sid, other_isec->sid,
@@ -3892,7 +3888,7 @@ static int selinux_socket_unix_stream_connect(struct socket *sock,
/* connecting socket */
ssec = sock->sk->sk_security;
ssec->peer_sid = other_isec->sid;
-
+
/* server child socket */
ssec = newsk->sk_security;
ssec->peer_sid = isec->sid;
@@ -3912,7 +3908,7 @@ static int selinux_socket_unix_may_send(struct socket *sock,
isec = SOCK_INODE(sock)->i_security;
other_isec = SOCK_INODE(other)->i_security;
- AVC_AUDIT_DATA_INIT(&ad,NET);
+ AVC_AUDIT_DATA_INIT(&ad, NET);
ad.u.net.sk = other->sk;
err = avc_has_perm(isec->sid, other_isec->sid,
@@ -3990,7 +3986,7 @@ static int selinux_sock_rcv_skb_iptables_compat(struct sock *sk,
err = avc_has_perm(sk_sid, if_sid, SECCLASS_NETIF, netif_perm, ad);
if (err)
return err;
-
+
err = sel_netnode_sid(addrp, family, &node_sid);
if (err)
return err;
@@ -4141,7 +4137,7 @@ out_len:
err = -EFAULT;
kfree(scontext);
-out:
+out:
return err;
}
@@ -4202,7 +4198,7 @@ static void selinux_sk_getsecid(struct sock *sk, u32 *secid)
}
}
-static void selinux_sock_graft(struct sock* sk, struct socket *parent)
+static void selinux_sock_graft(struct sock *sk, struct socket *parent)
{
struct inode_security_struct *isec = SOCK_INODE(parent)->i_security;
struct sk_security_struct *sksec = sk->sk_security;
@@ -4279,13 +4275,13 @@ static int selinux_nlmsg_perm(struct sock *sk, struct sk_buff *skb)
struct nlmsghdr *nlh;
struct socket *sock = sk->sk_socket;
struct inode_security_struct *isec = SOCK_INODE(sock)->i_security;
-
+
if (skb->len < NLMSG_SPACE(0)) {
err = -EINVAL;
goto out;
}
nlh = nlmsg_hdr(skb);
-
+
err = selinux_nlmsg_lookup(isec->sclass, nlh->nlmsg_type, &perm);
if (err) {
if (err == -EINVAL) {
@@ -4411,7 +4407,7 @@ static int selinux_ip_postroute_iptables_compat(struct sock *sk,
return err;
err = avc_has_perm(sk_sid, if_sid, SECCLASS_NETIF, netif_perm, ad);
return err;
-
+
err = sel_netnode_sid(addrp, family, &node_sid);
if (err)
return err;
@@ -4594,7 +4590,7 @@ static int selinux_netlink_recv(struct sk_buff *skb, int capability)
ad.u.cap = capability;
return avc_has_perm(NETLINK_CB(skb).sid, NETLINK_CB(skb).sid,
- SECCLASS_CAPABILITY, CAP_TO_MASK(capability), &ad);
+ SECCLASS_CAPABILITY, CAP_TO_MASK(capability), &ad);
}
static int ipc_alloc_security(struct task_struct *task,
@@ -4686,7 +4682,7 @@ static int selinux_msg_queue_alloc_security(struct msg_queue *msq)
isec = msq->q_perm.security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
- ad.u.ipc_id = msq->q_perm.key;
+ ad.u.ipc_id = msq->q_perm.key;
rc = avc_has_perm(tsec->sid, isec->sid, SECCLASS_MSGQ,
MSGQ__CREATE, &ad);
@@ -4723,7 +4719,7 @@ static int selinux_msg_queue_msgctl(struct msg_queue *msq, int cmd)
int err;
int perms;
- switch(cmd) {
+ switch (cmd) {
case IPC_INFO:
case MSG_INFO:
/* No specific object, just general system-wide information. */
@@ -4807,7 +4803,7 @@ static int selinux_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
msec = msg->security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
- ad.u.ipc_id = msq->q_perm.key;
+ ad.u.ipc_id = msq->q_perm.key;
rc = avc_has_perm(tsec->sid, isec->sid,
SECCLASS_MSGQ, MSGQ__READ, &ad);
@@ -4833,7 +4829,7 @@ static int selinux_shm_alloc_security(struct shmid_kernel *shp)
isec = shp->shm_perm.security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
- ad.u.ipc_id = shp->shm_perm.key;
+ ad.u.ipc_id = shp->shm_perm.key;
rc = avc_has_perm(tsec->sid, isec->sid, SECCLASS_SHM,
SHM__CREATE, &ad);
@@ -4871,7 +4867,7 @@ static int selinux_shm_shmctl(struct shmid_kernel *shp, int cmd)
int perms;
int err;
- switch(cmd) {
+ switch (cmd) {
case IPC_INFO:
case SHM_INFO:
/* No specific object, just general system-wide information. */
@@ -4932,7 +4928,7 @@ static int selinux_sem_alloc_security(struct sem_array *sma)
isec = sma->sem_perm.security;
AVC_AUDIT_DATA_INIT(&ad, IPC);
- ad.u.ipc_id = sma->sem_perm.key;
+ ad.u.ipc_id = sma->sem_perm.key;
rc = avc_has_perm(tsec->sid, isec->sid, SECCLASS_SEM,
SEM__CREATE, &ad);
@@ -4970,7 +4966,7 @@ static int selinux_sem_semctl(struct sem_array *sma, int cmd)
int err;
u32 perms;
- switch(cmd) {
+ switch (cmd) {
case IPC_INFO:
case SEM_INFO:
/* No specific object, just general system-wide information. */
@@ -5042,13 +5038,13 @@ static void selinux_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
}
/* module stacking operations */
-static int selinux_register_security (const char *name, struct security_operations *ops)
+static int selinux_register_security(const char *name, struct security_operations *ops)
{
if (secondary_ops != original_ops) {
printk(KERN_ERR "%s: There is already a secondary security "
"module registered.\n", __func__);
return -EINVAL;
- }
+ }
secondary_ops = ops;
@@ -5059,7 +5055,7 @@ static int selinux_register_security (const char *name, struct security_operatio
return 0;
}
-static void selinux_d_instantiate (struct dentry *dentry, struct inode *inode)
+static void selinux_d_instantiate(struct dentry *dentry, struct inode *inode)
{
if (inode)
inode_doinit_with_dentry(inode, dentry);
@@ -5187,11 +5183,11 @@ static int selinux_setprocattr(struct task_struct *p,
}
while_each_thread(g, t);
read_unlock(&tasklist_lock);
- }
+ }
/* Check permissions for the transition. */
error = avc_has_perm(tsec->sid, sid, SECCLASS_PROCESS,
- PROCESS__DYNTRANSITION, NULL);
+ PROCESS__DYNTRANSITION, NULL);
if (error)
return error;
@@ -5219,8 +5215,7 @@ static int selinux_setprocattr(struct task_struct *p,
tsec->sid = sid;
task_unlock(p);
}
- }
- else
+ } else
return -EINVAL;
return size;
@@ -5310,7 +5305,7 @@ static struct security_operations selinux_ops = {
.vm_enough_memory = selinux_vm_enough_memory,
.netlink_send = selinux_netlink_send,
- .netlink_recv = selinux_netlink_recv,
+ .netlink_recv = selinux_netlink_recv,
.bprm_alloc_security = selinux_bprm_alloc_security,
.bprm_free_security = selinux_bprm_free_security,
@@ -5323,13 +5318,13 @@ static struct security_operations selinux_ops = {
.sb_alloc_security = selinux_sb_alloc_security,
.sb_free_security = selinux_sb_free_security,
.sb_copy_data = selinux_sb_copy_data,
- .sb_kern_mount = selinux_sb_kern_mount,
+ .sb_kern_mount = selinux_sb_kern_mount,
.sb_statfs = selinux_sb_statfs,
.sb_mount = selinux_mount,
.sb_umount = selinux_umount,
.sb_get_mnt_opts = selinux_get_mnt_opts,
.sb_set_mnt_opts = selinux_set_mnt_opts,
- .sb_clone_mnt_opts = selinux_sb_clone_mnt_opts,
+ .sb_clone_mnt_opts = selinux_sb_clone_mnt_opts,
.sb_parse_opts_str = selinux_parse_opts_str,
@@ -5354,9 +5349,9 @@ static struct security_operations selinux_ops = {
.inode_getxattr = selinux_inode_getxattr,
.inode_listxattr = selinux_inode_listxattr,
.inode_removexattr = selinux_inode_removexattr,
- .inode_getsecurity = selinux_inode_getsecurity,
- .inode_setsecurity = selinux_inode_setsecurity,
- .inode_listsecurity = selinux_inode_listsecurity,
+ .inode_getsecurity = selinux_inode_getsecurity,
+ .inode_setsecurity = selinux_inode_setsecurity,
+ .inode_listsecurity = selinux_inode_listsecurity,
.inode_need_killpriv = selinux_inode_need_killpriv,
.inode_killpriv = selinux_inode_killpriv,
.inode_getsecid = selinux_inode_getsecid,
@@ -5373,7 +5368,7 @@ static struct security_operations selinux_ops = {
.file_send_sigiotask = selinux_file_send_sigiotask,
.file_receive = selinux_file_receive,
- .dentry_open = selinux_dentry_open,
+ .dentry_open = selinux_dentry_open,
.task_create = selinux_task_create,
.task_alloc_security = selinux_task_alloc_security,
@@ -5383,7 +5378,7 @@ static struct security_operations selinux_ops = {
.task_setgid = selinux_task_setgid,
.task_setpgid = selinux_task_setpgid,
.task_getpgid = selinux_task_getpgid,
- .task_getsid = selinux_task_getsid,
+ .task_getsid = selinux_task_getsid,
.task_getsecid = selinux_task_getsecid,
.task_setgroups = selinux_task_setgroups,
.task_setnice = selinux_task_setnice,
@@ -5397,7 +5392,7 @@ static struct security_operations selinux_ops = {
.task_wait = selinux_task_wait,
.task_prctl = selinux_task_prctl,
.task_reparent_to_init = selinux_task_reparent_to_init,
- .task_to_inode = selinux_task_to_inode,
+ .task_to_inode = selinux_task_to_inode,
.ipc_permission = selinux_ipc_permission,
.ipc_getsecid = selinux_ipc_getsecid,
@@ -5418,24 +5413,24 @@ static struct security_operations selinux_ops = {
.shm_shmctl = selinux_shm_shmctl,
.shm_shmat = selinux_shm_shmat,
- .sem_alloc_security = selinux_sem_alloc_security,
- .sem_free_security = selinux_sem_free_security,
+ .sem_alloc_security = selinux_sem_alloc_security,
+ .sem_free_security = selinux_sem_free_security,
.sem_associate = selinux_sem_associate,
.sem_semctl = selinux_sem_semctl,
.sem_semop = selinux_sem_semop,
.register_security = selinux_register_security,
- .d_instantiate = selinux_d_instantiate,
+ .d_instantiate = selinux_d_instantiate,
- .getprocattr = selinux_getprocattr,
- .setprocattr = selinux_setprocattr,
+ .getprocattr = selinux_getprocattr,
+ .setprocattr = selinux_setprocattr,
.secid_to_secctx = selinux_secid_to_secctx,
.secctx_to_secid = selinux_secctx_to_secid,
.release_secctx = selinux_release_secctx,
- .unix_stream_connect = selinux_socket_unix_stream_connect,
+ .unix_stream_connect = selinux_socket_unix_stream_connect,
.unix_may_send = selinux_socket_unix_may_send,
.socket_create = selinux_socket_create,
@@ -5457,7 +5452,7 @@ static struct security_operations selinux_ops = {
.sk_alloc_security = selinux_sk_alloc_security,
.sk_free_security = selinux_sk_free_security,
.sk_clone_security = selinux_sk_clone_security,
- .sk_getsecid = selinux_sk_getsecid,
+ .sk_getsecid = selinux_sk_getsecid,
.sock_graft = selinux_sock_graft,
.inet_conn_request = selinux_inet_conn_request,
.inet_csk_clone = selinux_inet_csk_clone,
@@ -5472,15 +5467,15 @@ static struct security_operations selinux_ops = {
.xfrm_state_alloc_security = selinux_xfrm_state_alloc,
.xfrm_state_free_security = selinux_xfrm_state_free,
.xfrm_state_delete_security = selinux_xfrm_state_delete,
- .xfrm_policy_lookup = selinux_xfrm_policy_lookup,
+ .xfrm_policy_lookup = selinux_xfrm_policy_lookup,
.xfrm_state_pol_flow_match = selinux_xfrm_state_pol_flow_match,
.xfrm_decode_session = selinux_xfrm_decode_session,
#endif
#ifdef CONFIG_KEYS
- .key_alloc = selinux_key_alloc,
- .key_free = selinux_key_free,
- .key_permission = selinux_key_permission,
+ .key_alloc = selinux_key_alloc,
+ .key_free = selinux_key_free,
+ .key_permission = selinux_key_permission,
#endif
#ifdef CONFIG_AUDIT
@@ -5520,15 +5515,14 @@ static __init int selinux_init(void)
original_ops = secondary_ops = security_ops;
if (!secondary_ops)
- panic ("SELinux: No initial security operations\n");
- if (register_security (&selinux_ops))
+ panic("SELinux: No initial security operations\n");
+ if (register_security(&selinux_ops))
panic("SELinux: Unable to register with kernel.\n");
- if (selinux_enforcing) {
+ if (selinux_enforcing)
printk(KERN_DEBUG "SELinux: Starting in enforcing mode\n");
- } else {
+ else
printk(KERN_DEBUG "SELinux: Starting in permissive mode\n");
- }
#ifdef CONFIG_KEYS
/* Add security information to initial keyrings */
@@ -5553,8 +5547,8 @@ next_sb:
if (!list_empty(&superblock_security_head)) {
struct superblock_security_struct *sbsec =
list_entry(superblock_security_head.next,
- struct superblock_security_struct,
- list);
+ struct superblock_security_struct,
+ list);
struct super_block *sb = sbsec->sb;
sb->s_count++;
spin_unlock(&sb_security_lock);
@@ -5673,10 +5667,11 @@ static void selinux_nf_ip_exit(void)
#endif /* CONFIG_NETFILTER */
#ifdef CONFIG_SECURITY_SELINUX_DISABLE
+static int selinux_disabled;
+
int selinux_disable(void)
{
extern void exit_sel_fs(void);
- static int selinux_disabled = 0;
if (ss_initialized) {
/* Not permitted after initial policy load. */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 14:29:32 +0000