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Revert "CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]"

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This reverts commit 14eaddc967.

David has a better version to come.
This commit is contained in:
James Morris 2009-01-07 09:21:54 +11:00
parent 76f7ba35d4
commit 29881c4502
9 changed files with 35 additions and 129 deletions
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26
security/selinux/hooks.c
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@ -1433,13 +1433,12 @@ static int current_has_perm(const struct task_struct *tsk,
/* Check whether a task is allowed to use a capability. */
static int task_has_capability(struct task_struct *tsk,
const struct cred *cred,
int cap, int audit)
{
struct avc_audit_data ad;
struct av_decision avd;
u16 sclass;
u32 sid = cred_sid(cred);
u32 sid = task_sid(tsk);
u32 av = CAP_TO_MASK(cap);
int rc;
@ -1866,27 +1865,15 @@ static int selinux_capset(struct cred *new, const struct cred *old,
return cred_has_perm(old, new, PROCESS__SETCAP);
}
static int selinux_capable(int cap, int audit)
static int selinux_capable(struct task_struct *tsk, int cap, int audit)
{
int rc;
rc = secondary_ops->capable(cap, audit);
rc = secondary_ops->capable(tsk, cap, audit);
if (rc)
return rc;
return task_has_capability(current, current_cred(), cap, audit);
}
static int selinux_task_capable(struct task_struct *tsk,
const struct cred *cred, int cap, int audit)
{
int rc;
rc = secondary_ops->task_capable(tsk, cred, cap, audit);
if (rc)
return rc;
return task_has_capability(tsk, cred, cap, audit);
return task_has_capability(tsk, cap, audit);
}
static int selinux_sysctl_get_sid(ctl_table *table, u16 tclass, u32 *sid)
@ -2050,7 +2037,7 @@ static int selinux_vm_enough_memory(struct mm_struct *mm, long pages)
{
int rc, cap_sys_admin = 0;
rc = selinux_capable(CAP_SYS_ADMIN, SECURITY_CAP_NOAUDIT);
rc = selinux_capable(current, CAP_SYS_ADMIN, SECURITY_CAP_NOAUDIT);
if (rc == 0)
cap_sys_admin = 1;
@ -2893,7 +2880,7 @@ static int selinux_inode_getsecurity(const struct inode *inode, const char *name
* and lack of permission just means that we fall back to the
* in-core context value, not a denial.
*/
error = selinux_capable(CAP_MAC_ADMIN, SECURITY_CAP_NOAUDIT);
error = selinux_capable(current, CAP_MAC_ADMIN, SECURITY_CAP_NOAUDIT);
if (!error)
error = security_sid_to_context_force(isec->sid, &context,
&size);
@ -5581,7 +5568,6 @@ static struct security_operations selinux_ops = {
.capset = selinux_capset,
.sysctl = selinux_sysctl,
.capable = selinux_capable,
.task_capable = selinux_task_capable,
.quotactl = selinux_quotactl,
.quota_on = selinux_quota_on,
.syslog = selinux_syslog,