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   selinux_restorecon_xattr    ( 3 )

управлять записями расширенных атрибутов security.sehash по умолчанию, добавленными selinux_restorecon (3), setfiles (8) или restorecon (8) (manage default security.sehash extended attribute entries added by selinux_restorecon(3), setfiles(8) or restorecon(8).)

Имя (Name)

selinux_restorecon_xattr - manage default security.sehash
       extended attribute entries added by selinux_restorecon(3),
       setfiles(8) or restorecon(8).

Синопсис (Synopsis)

#include <selinux/restorecon.h>

int selinux_restorecon_xattr(const char *pathname, unsigned int xattr_flags, struct dir_xattr ***xattr_list);


Описание (Description)

selinux_restorecon_xattr() returns a linked list of dir_xattr
       structures containing information described below based on:

pathname containing a directory tree to be searched for security.sehash extended attribute entries.

xattr_flags contains options as follows:

SELINUX_RESTORECON_XATTR_RECURSE recursively descend directories.

SELINUX_RESTORECON_XATTR_DELETE_NONMATCH_DIGESTS delete non-matching digests from each directory in pathname.

SELINUX_RESTORECON_XATTR_DELETE_ALL_DIGESTS delete all digests from each directory in pathname.

SELINUX_RESTORECON_XATTR_IGNORE_MOUNTS do not read /proc/mounts to obtain a list of non-seclabel mounts to be excluded from the search. Setting SELINUX_RESTORECON_XATTR_IGNORE_MOUNTS is useful where there is a non-seclabel fs mounted with a seclabel fs mounted on a directory below this.

xattr_list is the returned pointer to a linked list of dir_xattr structures, each containing the following information:

struct dir_xattr { char *directory; char *digest; /* Printable hex encoded string */ enum digest_result result; struct dir_xattr *next; };

The result entry is enumerated as follows: enum digest_result { MATCH = 0, NOMATCH, DELETED_MATCH, DELETED_NOMATCH, ERROR };

xattr_list must be set to NULL before calling selinux_restorecon_xattr(3). The caller is responsible for freeing the returned xattr_list entries in the linked list.

See the NOTES section for more information.


Возвращаемое значение (Return value)

On success, zero is returned.  On error, -1 is returned and errno
       is set appropriately.

Примечание (Note)

1.  By default selinux_restorecon_xattr(3) will use the default
           set of specfiles described in files_contexts(5) to calculate
           the SHA1 digests to be used for comparison.  To change this
           default behavior selabel_open(3) must be called specifying
           the required SELABEL_OPT_PATH and setting the
           SELABEL_OPT_DIGEST option to a non-NULL value.
           selinux_restorecon_set_sehandle(3) is then called to set the
           handle to be used by selinux_restorecon_xattr(3).

2. By default selinux_restorecon_xattr(3) reads /proc/mounts to obtain a list of non-seclabel mounts to be excluded from searches unless the SELINUX_RESTORECON_XATTR_IGNORE_MOUNTS flag has been set.

3. RAMFS and TMPFS filesystems do not support the security.sehash extended attribute and are automatically excluded from searches.

4. By default stderr is used to log output messages and errors. This may be changed by calling selinux_set_callback(3) with the SELINUX_CB_LOG type option.


Смотри также (See also)

selinux_restorecon(3)
       selinux_restorecon_set_sehandle(3),
       selinux_restorecon_default_handle(3),
       selinux_restorecon_set_exclude_list(3),
       selinux_restorecon_set_alt_rootpath(3),
       selinux_set_callback(3)