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SELINUX_RESTORECON_XATTR(3) - Linux man page online | Library functions

Manage default security.restorecon_last extended attribute entries added by.

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30 July 2016
selinux_restorecon_xattr(3) SELinux API documentation selinux_restorecon_xattr(3)

NAME

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

SYNOPSIS

#include <selinux/restorecon.h> int selinux_restorecon_xattr(const char *pathname, unsigned int xattr_flags, struct dir_xattr ***xattr_list);

DESCRIPTION

selinux_restorecon_xattr() returns a linked list of dir_xattr structures containing infor‐ mation described below based on: pathname containing a directory tree to be searched for security.restorecon_last 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.

RETURN VALUE

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

NOTES

1. By default selinux_restorecon_xattr(3) will use the default set of specfiles described in files_contexts(5) to calculate the initial SHA1 digest to be used for comparision. 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_RESTORE‐ CON_XATTR_IGNORE_MOUNTS flag has been set. 3. RAMFS and TMPFS filesystems do not support the security.restorecon_last 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.

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)
30 July 2016 selinux_restorecon_xattr(3)
This manual Reference Other manuals
selinux_restorecon_xattr(3) referred by 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)
refer to restorecon(8) | selabel_open(3) | 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_set_callback(3) | setfiles(8)
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