avc_compute_create
Section: SELinux API documentation (3)
Updated: 30 Mar 2007
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NAME
avc_compute_create, avc_compute_member - obtain SELinux label for new object.
SYNOPSIS
#include <selinux/selinux.h>
#include <selinux/avc.h>
int avc_compute_create(security_id_t ssid, security_id_t tsid,
security_class_t tclass, security_id_t *newsid);
int avc_compute_member(security_id_t ssid, security_id_t tsid,
security_class_t tclass, security_id_t *newsid);
DESCRIPTION
avc_compute_create
is used to compute a SID to use for labeling a new object in a particular class based on a SID pair. This call is identical to
security_compute_create,
but does not require converting from userspace SID's to contexts and back again.
avc_compute_member
is used to compute a SID to use for labeling a polyinstantiated object instance of a particular class based on a SID pair. This call is identical to
security_compute_member,
but does not require converting from userspace SID's to contexts and back again.
These functions
return a SID for the computed context in the memory referenced by
sid.
RETURN VALUE
On success, zero is returned. On error, -1 is returned and
errno
is set appropriately.
ERRORS
- EINVAL
-
The
tclass
and/or the security contexts referenced by
ssid
and
tsid
are not recognized by the currently loaded policy.
- ENOMEM
-
An attempt to allocate memory failed.
AUTHOR
Eamon Walsh <ewalsh@tycho.nsa.gov>
SEE ALSO
avc_init(3),
avc_context_to_sid(3),
security_compute_create(3),
selinux(8)