matchpathcon(3) SELinux API documentation matchpathcon(3)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 *prefix);
int matchpathcon_init_prefixes(const char *path, const char **pre‐
fixes);
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_con‐
text_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 customiza‐
tions.
matchpathcon_init_prefix is the same as matchpathcon_init but only
loads entries with regular expressions that have stems prefixed by pre‐
fix.
matchpathcon_init_prefixes is the same as matchpathcon_init_prefix but
takes an array of prefixes instead of a single prefix. The last entry
in the array must be NULL.
matchpathcon_fini frees the memory allocated by a prior call to match‐
pathcon_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 con‐
text 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 specifica‐
tion index that can later be used in a matchpathcon_filespec_add(3)
call.
RETURN VALUE
Returns zero on success or -1 otherwise.
SEE ALSOselinux(8), set_matchpathcon_flags(3), set_matchpathcon_invalidcon(3),
set_matchpathcon_printf(3), matchpathcon_filespec_add(3), matchpath‐
con_checkmatches(3), freecon(3), setfilecon(3), setfscreatecon(3)sds@tycho.nsa.gov 21 November 2009 matchpathcon(3)
