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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | COLOPHON |
selinux_restorecon_xattr(3)ELinux API documentationlinux_restorecon_xattr(3)
selinux_restorecon_xattr - manage default security.sehash extended
attribute entries added by selinux_restorecon(3), setfiles(8) or
restorecon(8).
#include <selinux/restorecon.h>
int selinux_restorecon_xattr(const char *pathname,
unsigned int xattr_flags,
struct dir_xattr ***xattr_list);
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.
On success, zero is returned. On error, -1 is returned and errno is
set appropriately.
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.
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)
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 2020-08-13. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2020-08-11.) 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 man-pages@man7.org
30 July 2016 selinux_restorecon_xattr(3)
Pages that refer to this page: selinux_restorecon(3) , selinux_restorecon_default_handle(3) , selinux_restorecon_set_alt_rootpath(3) , selinux_restorecon_set_exclude_list(3) , selinux_restorecon_set_sehandle(3) , selinux_restorecon_xattr(3)