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selinux_file_context_verifyLibrary Functions Manselinux_file_context_verify(3)

NAME
       selinux_file_context_verify  -  Compare the SELinux security context on
       disk to the default security context required by the policy  file  con-
       texts file
SYNOPSIS
       #include <selinux/selinux.h>
       int selinux_file_context_verify(const char *path, mode_t mode);
DESCRIPTION
       selinux_file_context_verify()  compares  the  context  of the specified
       path that is held on disk (in the extended attribute),  to  the  system
       default entry held in the file contexts series of files.
       The mode may be zero.
       Note  that  the two contexts are compared for "significant" differences
       (i.e. the user component of the contexts are ignored) as shown  in  the
       EXAMPLE section.
RETURN VALUE
       If the contexts significantly match, 1 (one) is returned.
       If  the  contexts do not match 0 (zero) is returned and errno is set to
       either ENOENT or EINVAL for the reasons listed in the  ERRORS  section,
       or if errno = 0 then the contexts did not match.
       On failure -1 is returned and errno set appropriately.
ERRORS
       ENOTSUP
              if extended attributes are not supported by the file system.
       ENOENT if  there  is  no  entry in the file contexts series of files or
              path does not exist.
       EINVAL if the entry in the file contexts series of files  or  path  are
              invalid, or the returned context fails validation.
       ENOMEM if attempt to allocate memory failed.
FILES
       The  following  configuration files (the file contexts series of files)
       supporting the active policy will be used (should they exist) to deter-
       mine the path default context:
              contexts/files/file_contexts - This file must exist.
              contexts/files/file_contexts.local  -  If  exists has local cus-
              tomizations.
              contexts/files/file_contexts.homedirs - If exists has users home
              directory customizations.
              contexts/files/file_contexts.subs  - If exists has substitutions
              that are then applied to the 'in memory'  version  of  the  file
              contexts files.
EXAMPLE
       If the files context is:
              unconfined_u:object_r:admin_home_t:s0
       and the default context defined in the file contexts file is:
              system_u:object_r:admin_home_t:s0
       then the actual strings compared are:
              :object_r:admin_home_t:s0 and :object_r:admin_home_t:s0
       Therefore they will match and selinux_file_context_verify() will return
       1.
SEE ALSO
       selinux(8)

SELinux API documentation        08 March 2011  selinux_file_context_verify(3)