#ifndef _RESTORECON_H_
#define _RESTORECON_H_
#include <sys/types.h>
#include <stddef.h>
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* selinux_restorecon - Relabel files.
* @pathname: specifies file/directory to relabel.
* @restorecon_flags: specifies the actions to be performed when relabeling.
*
* selinux_restorecon(3) will automatically call
* selinux_restorecon_default_handle(3) and selinux_restorecon_set_sehandle(3)
* first time through to set the selabel_open(3) parameters to use the
* currently loaded policy file_contexts and request their computed digest.
*
* Should other selabel_open(3) parameters be required see
* selinux_restorecon_set_sehandle(3).
*/
extern int selinux_restorecon(const char *pathname,
unsigned int restorecon_flags);
/**
* selinux_restorecon_parallel - Relabel files, optionally use more threads.
* @pathname: specifies file/directory to relabel.
* @restorecon_flags: specifies the actions to be performed when relabeling.
* @nthreads: specifies the number of threads to use (0 = use number of CPUs
* currently online)
*
* Same as selinux_restorecon(3), but allows to use multiple threads to do
* the work.
*/
extern int selinux_restorecon_parallel(const char *pathname,
unsigned int restorecon_flags,
size_t nthreads);
/*
* restorecon_flags options
*/
/*
* Force the checking of labels even if the stored SHA256 digest
* matches the specfiles SHA256 digest (requires CAP_SYS_ADMIN).
*/
#define SELINUX_RESTORECON_IGNORE_DIGEST 0x00001
/*
* Do not change file labels.
*/
#define SELINUX_RESTORECON_NOCHANGE 0x00002
/*
* If set, change file label to that in spec file.
* If not, only change type component to that in spec file.
*/
#define SELINUX_RESTORECON_SET_SPECFILE_CTX 0x00004
/*
* Recursively descend directories.
*/
#define SELINUX_RESTORECON_RECURSE 0x00008
/*
* Log changes to selinux log. Note that if VERBOSE and
* PROGRESS are set, then PROGRESS will take precedence.
*/
#define SELINUX_RESTORECON_VERBOSE 0x00010
/*
* If SELINUX_RESTORECON_PROGRESS is true and
* SELINUX_RESTORECON_MASS_RELABEL is true, then output approx % complete,
* else output the number of files in 1k blocks processed to stdout.
*/
#define SELINUX_RESTORECON_PROGRESS 0x00020
/*
* Convert passed-in pathname to canonical pathname.
*/
#define SELINUX_RESTORECON_REALPATH 0x00040
/*
* Prevent descending into directories that have a different
* device number than the pathname from which the descent began.
*/
#define SELINUX_RESTORECON_XDEV 0x00080
/*
* Attempt to add an association between an inode and a specification.
* If there is already an association for the inode and it conflicts
* with the specification, then use the last matching specification.
*/
#define SELINUX_RESTORECON_ADD_ASSOC 0x00100
/*
* Abort on errors during the file tree walk.
*/
#define SELINUX_RESTORECON_ABORT_ON_ERROR 0x00200
/*
* Log any label changes to syslog.
*/
#define SELINUX_RESTORECON_SYSLOG_CHANGES 0x00400
/*
* Log what spec matched each file.
*/
#define SELINUX_RESTORECON_LOG_MATCHES 0x00800
/*
* Ignore files that do not exist.
*/
#define SELINUX_RESTORECON_IGNORE_NOENTRY 0x01000
/*
* Do not read /proc/mounts to obtain a list of non-seclabel
* mounts to be excluded from relabeling checks.
*/
#define SELINUX_RESTORECON_IGNORE_MOUNTS 0x02000
/*
* Set if there is a mass relabel required.
* See SELINUX_RESTORECON_PROGRESS flag for details.
*/
#define SELINUX_RESTORECON_MASS_RELABEL 0x04000
/*
* Set if no digest is to be read or written (as only processes
* running with CAP_SYS_ADMIN can read/write digests).
*/
#define SELINUX_RESTORECON_SKIP_DIGEST 0x08000
/*
* Set to treat conflicting specifications as errors.
*/
#define SELINUX_RESTORECON_CONFLICT_ERROR 0x10000
/*
* Count, but otherwise ignore, errors during the file tree walk.
*/
#define SELINUX_RESTORECON_COUNT_ERRORS 0x20000
/**
* selinux_restorecon_set_sehandle - Set the global fc handle.
* @hndl: specifies handle to set as the global fc handle.
*
* Called by a process that has already called selabel_open(3) with its
* required parameters, or if selinux_restorecon_default_handle(3) has been
* called to set the default selabel_open(3) parameters.
*/
extern void selinux_restorecon_set_sehandle(struct selabel_handle *hndl);
/**
* selinux_restorecon_default_handle - Sets default selabel_open(3) parameters
* to use the currently loaded policy and
* file_contexts.
*
* Return value is the created handle on success or NULL with @errno set on
* failure.
*/
extern struct selabel_handle *selinux_restorecon_default_handle(void);
/**
* selinux_restorecon_set_exclude_list - Add a list of directories that are
* to be excluded from relabeling.
* @exclude_list: containing a NULL terminated list of one or more
* directories not to be relabeled.
*/
extern void selinux_restorecon_set_exclude_list(const char **exclude_list);
/**
* selinux_restorecon_set_alt_rootpath - Use alternate rootpath.
* @alt_rootpath: containing the alternate rootpath to be used.
*
* Return %0 on success, -%1 with @errno set on failure.
*/
extern int selinux_restorecon_set_alt_rootpath(const char *alt_rootpath);
/**
* selinux_restorecon_xattr - Read/remove security.sehash xattr entries.
* @pathname: specifies directory path to check.
* @xattr_flags: specifies the actions to be performed.
* @xattr_list: a linked list of struct dir_xattr structures containing
* the directory, digest and result of the action on the
* security.sehash entry.
*
* selinux_restorecon_xattr(3) will automatically call
* selinux_restorecon_default_handle(3) and selinux_restorecon_set_sehandle(3)
* first time through to set the selabel_open(3) parameters to use the
* currently loaded policy file_contexts and request their computed digest.
*
* Should other selabel_open(3) parameters be required see
* selinux_restorecon_set_sehandle(3), however note that a file_contexts
* computed digest is required for selinux_restorecon_xattr().
*/
enum digest_result {
MATCH = 0,
NOMATCH,
DELETED_MATCH,
DELETED_NOMATCH,
ERROR
};
struct dir_xattr {
char *directory;
char *digest; /* A hex encoded string that can be printed. */
enum digest_result result;
struct dir_xattr *next;
};
extern int selinux_restorecon_xattr(const char *pathname,
unsigned int xattr_flags,
struct dir_xattr ***xattr_list);
/*
* xattr_flags options
*/
/* Recursively descend directories. */
#define SELINUX_RESTORECON_XATTR_RECURSE 0x0001
/* Delete non-matching digests from each directory in pathname. */
#define SELINUX_RESTORECON_XATTR_DELETE_NONMATCH_DIGESTS 0x0002
/* Delete all digests found in pathname. */
#define SELINUX_RESTORECON_XATTR_DELETE_ALL_DIGESTS 0x0004
/* Do not read /proc/mounts. */
#define SELINUX_RESTORECON_XATTR_IGNORE_MOUNTS 0x0008
/* selinux_restorecon_get_skipped_errors - Get the number of errors ignored
* during re-labeling.
*
* If SELINUX_RESTORECON_COUNT_ERRORS was passed to selinux_restorecon(3) or
* selinux_restorecon_parallel(3), and that function returned successfully
* (i.e., with a zero return value), then this function returns the number of
* errors ignored during the file tree walk.
*/
extern long unsigned selinux_restorecon_get_skipped_errors(void);
#ifdef __cplusplus
}
#endif
#endif
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