#include <linux/seq_file.h>
#include <linux/percpu.h>
#include <linux/audit.h>
-#include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/uaccess.h>
/* selinuxfs pseudo filesystem for exporting the security policy API.
Based on the proc code and the fs/nfsd/nfsctl.c code. */
unsigned int selinux_checkreqprot = CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE;
-#ifdef CONFIG_SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT
-#define SELINUX_COMPAT_NET_VALUE 0
-#else
-#define SELINUX_COMPAT_NET_VALUE 1
-#endif
-
-int selinux_compat_net = SELINUX_COMPAT_NET_VALUE;
-
static int __init checkreqprot_setup(char *str)
{
- selinux_checkreqprot = simple_strtoul(str, NULL, 0) ? 1 : 0;
+ unsigned long checkreqprot;
+ if (!strict_strtoul(str, 0, &checkreqprot))
+ selinux_checkreqprot = checkreqprot ? 1 : 0;
return 1;
}
__setup("checkreqprot=", checkreqprot_setup);
-static int __init selinux_compat_net_setup(char *str)
-{
- selinux_compat_net = simple_strtoul(str, NULL, 0) ? 1 : 0;
- return 1;
-}
-__setup("selinux_compat_net=", selinux_compat_net_setup);
-
-
static DEFINE_MUTEX(sel_mutex);
/* global data for booleans */
static int task_has_security(struct task_struct *tsk,
u32 perms)
{
- struct task_security_struct *tsec;
-
- tsec = tsk->security;
+ const struct task_security_struct *tsec;
+ u32 sid = 0;
+
+ rcu_read_lock();
+ tsec = __task_cred(tsk)->security;
+ if (tsec)
+ sid = tsec->sid;
+ rcu_read_unlock();
if (!tsec)
return -EACCES;
- return avc_has_perm(tsec->sid, SECINITSID_SECURITY,
+ return avc_has_perm(sid, SECINITSID_SECURITY,
SECCLASS_SECURITY, perms, NULL);
}
length = count;
out1:
-
- printk(KERN_INFO "SELinux: policy loaded with handle_unknown=%s\n",
- (security_get_reject_unknown() ? "reject" :
- (security_get_allow_unknown() ? "allow" : "deny")));
-
audit_log(current->audit_context, GFP_KERNEL, AUDIT_MAC_POLICY_LOAD,
"policy loaded auid=%u ses=%u",
audit_get_loginuid(current),
.write = sel_write_checkreqprot,
};
-static ssize_t sel_read_compat_net(struct file *filp, char __user *buf,
- size_t count, loff_t *ppos)
-{
- char tmpbuf[TMPBUFLEN];
- ssize_t length;
-
- length = scnprintf(tmpbuf, TMPBUFLEN, "%d", selinux_compat_net);
- return simple_read_from_buffer(buf, count, ppos, tmpbuf, length);
-}
-
-static ssize_t sel_write_compat_net(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- char *page;
- ssize_t length;
- int new_value;
-
- length = task_has_security(current, SECURITY__LOAD_POLICY);
- if (length)
- return length;
-
- if (count >= PAGE_SIZE)
- return -ENOMEM;
- if (*ppos != 0) {
- /* No partial writes. */
- return -EINVAL;
- }
- page = (char *)get_zeroed_page(GFP_KERNEL);
- if (!page)
- return -ENOMEM;
- length = -EFAULT;
- if (copy_from_user(page, buf, count))
- goto out;
-
- length = -EINVAL;
- if (sscanf(page, "%d", &new_value) != 1)
- goto out;
-
- selinux_compat_net = new_value ? 1 : 0;
- length = count;
-out:
- free_page((unsigned long) page);
- return length;
-}
-static const struct file_operations sel_compat_net_ops = {
- .read = sel_read_compat_net,
- .write = sel_write_compat_net,
-};
-
/*
* Remaining nodes use transaction based IO methods like nfsd/nfsctl.c
*/
goto out2;
length = scnprintf(buf, SIMPLE_TRANSACTION_LIMIT,
- "%x %x %x %x %u",
- avd.allowed, avd.decided,
+ "%x %x %x %x %u %x",
+ avd.allowed, 0xffffffff,
avd.auditallow, avd.auditdeny,
- avd.seqno);
+ avd.seqno, avd.flags);
out2:
kfree(tcon);
out:
if (ret) {
ret->i_mode = mode;
- ret->i_uid = ret->i_gid = 0;
- ret->i_blocks = 0;
ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
}
return ret;
goto out;
}
- if (count > PAGE_SIZE) {
- ret = -EINVAL;
- goto out;
- }
page = (char *)get_zeroed_page(GFP_KERNEL);
if (!page) {
ret = -ENOMEM;
{
int cpu;
- for (cpu = *idx; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *idx; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*idx = cpu + 1;
[SEL_DISABLE] = {"disable", &sel_disable_ops, S_IWUSR},
[SEL_MEMBER] = {"member", &transaction_ops, S_IRUGO|S_IWUGO},
[SEL_CHECKREQPROT] = {"checkreqprot", &sel_checkreqprot_ops, S_IRUGO|S_IWUSR},
- [SEL_COMPAT_NET] = {"compat_net", &sel_compat_net_ops, S_IRUGO|S_IWUSR},
[SEL_REJECT_UNKNOWN] = {"reject_unknown", &sel_handle_unknown_ops, S_IRUGO},
[SEL_DENY_UNKNOWN] = {"deny_unknown", &sel_handle_unknown_ops, S_IRUGO},
/* last one */ {""}