NAME | SYNOPSIS | DESCRIPTION | GLOBAL OPTIONS | BACKENDS | RETURN VALUE | AUTHOR | SEE ALSO | COLOPHON |
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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(unsigned 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 <[email protected]>
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 2024-06-14. (At
that time, the date of the most recent commit that was found in
the repository was 2023-05-11.) 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
[email protected]
18 Jun 2007 selabel_open(3)
Pages that refer to this page: matchpathcon(3), selabel_digest(3), selabel_get_digests_all_partial_matches(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)