NAME

       matchpathcon,  matchpathcon_index  - get the default SELinux security context for the specified path from
       the file contexts configuration

SYNOPSIS

       #include <selinux/selinux.h>

       int matchpathcon_init(const char *path);

       int matchpathcon_init_prefix(const char *path, const char *subset);

       int matchpathcon_fini(void);

       int matchpathcon(const char *path, mode_t mode, security_context_t *con);

       int matchpathcon_index(const char *name, mode_t mode, security_context_t *con);

DESCRIPTION

       matchpathcon_init() loads the file contexts configuration specified  by  path  into  memory  for  use  by
       subsequent  matchpathcon() calls.  If path is NULL, then the active file contexts configuration is loaded
       by default, i.e. the path returned by  selinux_file_context_path(3).   Unless  the  MATCHPATHCON_BASEONLY
       flag  has  been  set  via  set_matchpathcon_flags(3), files with the same path prefix but a .homedirs and
       .local suffix are also looked up and loaded  if  present.   These  files  provide  dynamically  generated
       entries for user home directories and for local customizations.

       matchpathcon_init_prefix()  is  the  same  as  matchpathcon_init()  but  only  loads entries with regular
       expressions that have stems prefixed by prefix.

       matchpathcon_fini() frees the memory allocated by a prior call to matchpathcon_init.() This function  can
       be  used  to  free  and  reset  the internal state between multiple matchpathcon_init() calls, or to free
       memory when finished using matchpathcon().

       matchpathcon() matches the specified pathname and mode against the file contexts configuration  and  sets
       the  security  context  con to refer to the resulting context. The caller must free the returned security
       context con using freecon(3) when finished using it.  mode can be 0 to disable mode matching, but  should
       be  provided  whenever possible, as it may affect the matching.  Only the file format bits (i.e. the file
       type) of the mode are used.  If matchpathcon_init() has not already been called, then this function  will
       call it upon its first invocation with a NULL path, defaulting to the active file contexts configuration.

       matchpathcon_index()  is  the  same as matchpathcon() but returns a specification index that can later be
       used in a matchpathcon_filespec_add(3) call.

RETURN VALUE

       Returns zero on success or -1 otherwise.

SEE ALSO

       selinux(8), set_matchpathcon_flags(3), set_matchpathcon_invalidcon(3), set_matchpathcon_printf(3),
       matchpathcon_filespec_add(3), matchpathcon_checkmatches(3), freecon(3), setfilecon(3), setfscreatecon(3)

sds@tycho.nsa.gov                               21 November 2009                                 matchpathcon(3)