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NAME | SYNOPSIS | DESCRIPTION | GLOBAL OPTIONS | BACKENDS | RETURN VALUE | AUTHOR | SEE ALSO | COLOPHON |
selabel_open(3) SELinux API documentation selabel_open(3)
selabel_open, selabel_close - userspace SELinux labeling interface
#include <selinux/selinux.h>
#include <selinux/label.h>
struct selabel_handle *selabel_open(int backend,
const struct selinux_opt
*options,
unsigned nopt);
void selabel_close(struct selabel_handle *hnd);
selabel_open() is used to initialize a labeling handle to be used for
lookup operations. The backend argument specifies which backend is
to be opened; the list of current backends appears in BACKENDS below.
The options argument should be NULL or a pointer to an array of
selinux_opt structures of length nopt:
struct selinux_opt {
int type;
const char *value;
};
The available option types are described in GLOBAL OPTIONS below as
well as in the documentation for each individual backend. The return
value on success is a non-NULL value for use in subsequent label
operations.
selabel_close() terminates use of a handle, freeing any internal
resources associated with it. After this call has been made, the
handle must not be used again.
Global options which may be passed to selabel_open() include the
following:
SELABEL_OPT_UNUSED
The option with a type code of zero is a no-op. Thus an array
of options may be initizalized to zero and any untouched
elements will not cause an error.
SELABEL_OPT_VALIDATE
A non-null value for this option enables context validation.
By default, security_check_context(3) is used; a custom
validation function can be provided via
selinux_set_callback(3). Note that an invalid context may not
be treated as an error unless it is actually encountered
during a lookup operation.
SELABEL_OPT_DIGEST
A non-null value for this option enables the generation of an
SHA1 digest of the spec files loaded as described in
selabel_digest(3)
SELABEL_CTX_FILE
File contexts backend, described in selabel_file(5).
SELABEL_CTX_MEDIA
Media contexts backend, described in selabel_media(5).
SELABEL_CTX_X
X Windows contexts backend, described in selabel_x(5).
SELABEL_CTX_DB
Database objects contexts backend, described in selabel_db(5).
A non-NULL handle value is returned on success. On error, NULL is
returned and errno is set appropriately.
Eamon Walsh <ewalsh@tycho.nsa.gov>
selabel_lookup(3), selabel_stats(3), selinux_set_callback(3),
selinux(8)
This page is part of the selinux (Security-Enhanced Linux user-space
libraries and tools) project. Information about the project can be
found at ⟨https://github.com/SELinuxProject/selinux/wiki⟩. If you
have a bug report for this manual page, see
⟨https://github.com/SELinuxProject/selinux/wiki/Contributing⟩. This
page was obtained from the project's upstream Git repository
⟨https://github.com/SELinuxProject/selinux⟩ on 2017-07-05. If you
discover any rendering problems in this HTML version of the page, or
you believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
18 Jun 2007 selabel_open(3)
Pages that refer to this page: matchpathcon(3), selabel_digest(3), selabel_lookup(3), selabel_lookup_best_match(3), selabel_partial_match(3), selabel_stats(3), selinux_restorecon(3), selinux_restorecon_default_handle(3), selinux_restorecon_set_sehandle(3), selinux_restorecon_xattr(3), selinux_set_callback(3), selabel_db(5), selabel_file(5), selabel_media(5), selabel_x(5), restorecon_xattr(8)