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matchpathcon(3) — Linux manual page

matchpathcon(3)         SELinux API documentationmatchpathcon(3)

NAME        top

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

SYNOPSIS        top

#include <selinux/selinux.h>int matchpathcon_init(const char *path);int matchpathcon_init_prefix(const char *path, const char*prefix);int matchpathcon_fini(void);int matchpathcon(const char *path, mode_tmode, char **con);int matchpathcon_index(const char *name, mode_tmode, char **con);

DESCRIPTION        top

       This family of functions is deprecated.  For new code, please useselabel_open(3) with theSELABEL_CTX_FILEbackend in place ofmatchpathcon_init(), useselabel_close(3) in place ofmatchpathcon_fini(), and useselabel_lookup(3) in place ofmatchpathcon().       The remaining description below is for the legacy interface.matchpathcon_init() loads the file contexts configuration       specified bypath into memory for use by subsequentmatchpathcon()       calls.  Ifpath is NULL, then the active file contexts       configuration is loaded by default, i.e. the path returned byselinux_file_context_path(3).  Unless theMATCHPATHCON_BASEONLY       flag has been set viaset_matchpathcon_flags(3), files with the       same path prefix but a.homedirsand.localsuffix 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 asmatchpathcon_init() but       only loads entries with regular expressions whose first pathname       component is a prefix ofprefix , e.g. pass "/dev" if you only       intend to callmatchpathcon() with pathnames beginning with /dev.       However, this optimization is no longer necessary due to the use       offile_contexts.bin files with precompiled regular expressions,       so use of this interface is deprecated.matchpathcon_fini() frees the memory allocated by a prior call tomatchpathcon_init.() This function can be used to free and reset       the internal state between multiplematchpathcon_init() calls, or       to free memory when finished usingmatchpathcon().matchpathcon() matches the specifiedpathname, after       transformation viarealpath(3) excepting any final symbolic link       component if S_IFLNK was specified as themode, andmode against       thefile contexts configuration and sets the security contextcon       to refer to the resulting context. The caller must free the       returned security contextcon usingfreecon(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 themode are used.       Ifmatchpathcon_init() has not already been called, then this       function will call it upon its first invocation with a NULLpath,       defaulting to the active file contexts configuration.matchpathcon_index() is the same asmatchpathcon() but returns a       specification index that can later be used in amatchpathcon_filespec_add(3) call.

RETURN VALUE        top

       Returns zero on success or -1 otherwise.

SEE ALSO        top

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)

COLOPHON        top

       This page is part of theselinux (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 2025-08-11.  (At       that time, the date of the most recent commit that was found in       the repository was 2025-08-04.)  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 isnot part of the original manual page), send a mail to       man-pages@man7.orgstephen.smalley.work@gmai... 21 November 2009matchpathcon(3)

Pages that refer to this page:matchpathcon_checkmatches(3), selinux_lsetfilecon_default(3), set_matchpathcon_flags(3), matchpathcon(8)

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