File findutils-selinux.diff of Package findutils
--- findutils-4.4.0/configure.ac
+++ findutils-4.4.0/configure.ac
@@ -114,6 +114,16 @@ AC_CHECK_LIB([m],[fabs],[FINDLIBS="-lm $
AC_DEFINE_UNQUOTED(HAVE_FABS_IN_LIBM,1,[fabs is defined in -lm]))
AC_SUBST([FINDLIBS])
+AC_ARG_WITH([selinux],
+ AS_HELP_STRING([--without-selinux], [disable SELinux support]),
+ [:],
+[AC_CHECK_LIB([selinux], [is_selinux_enabled],
+ [with_selinux=yes], [with_selinux=no])])
+if test x$with_selinux != xno; then
+ AC_DEFINE([WITH_SELINUX], [1], [Define to support SELinux])
+ AC_SUBST([LIBSELINUX], [-lselinux])
+fi
+
dnl Checks for header files.
AC_HEADER_STDC
dnl Assume unistd.h is present - coreutils does too.
--- findutils-4.4.0/doc/find.texi
+++ findutils-4.4.0/doc/find.texi
@@ -1242,6 +1242,14 @@ situation.
@end deffn
+@deffn Test -context pattern
+True if file's SELinux context matches the pattern @var{pattern}.
+The pattern uses shell glob matching.
+
+This predicate is supported only on @code{find} versions compiled with
+SELinux support and only when SELinux is enabled.
+@end deffn
+
@node Contents
@section Contents
@@ -1826,6 +1834,9 @@ value used for BLOCKSIZE is system-depen
bytes. If the file size is zero, the value printed is undefined. On
systems which lack support for st_blocks, a file's sparseness is
assumed to be 1.0.
+@item %Z
+File's SELinux context, or empty string if the file has no SELinux context
+or this version of find does not support SELinux.
@end table
@node Location Directives
--- findutils-4.4.0/find/Makefile.am
+++ findutils-4.4.0/find/Makefile.am
@@ -26,7 +26,7 @@ endif
EXTRA_DIST = defs.h $(man_MANS)
INCLUDES = -I../gnulib/lib -I$(top_srcdir)/lib -I$(top_srcdir)/gnulib/lib -I../intl -DLOCALEDIR=\"$(localedir)\"
-LDADD = ./libfindtools.a ../lib/libfind.a ../gnulib/lib/libgnulib.a @INTLLIBS@ @LIB_CLOCK_GETTIME@ @FINDLIBS@
+LDADD = ./libfindtools.a ../lib/libfind.a ../gnulib/lib/libgnulib.a @INTLLIBS@ @LIB_CLOCK_GETTIME@ @FINDLIBS@ @LIBSELINUX@
man_MANS = find.1
SUBDIRS = . testsuite
--- findutils-4.4.0/find/defs.h
+++ findutils-4.4.0/find/defs.h
@@ -91,6 +91,9 @@ int get_statinfo PARAMS((const char *pat
#define MODE_RWX (S_IXUSR | S_IXGRP | S_IXOTH | MODE_RW)
#define MODE_ALL (S_ISUID | S_ISGID | S_ISVTX | MODE_RWX)
+#ifdef WITH_SELINUX
+#include <selinux/selinux.h>
+#endif
struct predicate;
struct options;
@@ -315,6 +318,9 @@ struct predicate
struct samefile_file_id samefileid; /* samefile */
mode_t type; /* type */
struct format_val printf_vec; /* printf fprintf fprint ls fls print0 fprint0 print */
+#ifdef WITH_SELINUX
+ security_context_t scontext; /* scontext */
+#endif
} args;
/* The next predicate in the user input sequence,
@@ -459,6 +465,9 @@ PREDICATEFUNCTION pred_used;
PREDICATEFUNCTION pred_user;
PREDICATEFUNCTION pred_writable;
PREDICATEFUNCTION pred_xtype;
+#ifdef WITH_SELINUX
+PREDICATEFUNCTION pred_context;
+#endif
@@ -601,6 +610,10 @@ struct options
*/
int regex_options;
+#ifdef WITH_SELINUX
+ int (*x_getfilecon) (const char *name, security_context_t *context);
+#endif
+
/* Optimisation level. One is the default.
*/
unsigned short optimisation_level;
--- findutils-4.4.0/find/find.1
+++ findutils-4.4.0/find/find.1
@@ -934,6 +934,8 @@ if \fIc\fR is `l'. In other words, for
checks the type of the file that
.B \-type
does not check.
+.IP "\-context \fIpattern\fR"
+(SELinux only) Security context of the file matches glob \fIpattern\fR.
.SS ACTIONS
.IP "\-delete\fR"
@@ -1340,6 +1342,8 @@ File's type (like in
U=unknown type (shouldn't happen)
.IP %Y
File's type (like %y), plus follow symlinks: L=loop, N=nonexistent
+.IP %Z
+(SELinux only) file's security context.
.PP
A `%' character followed by any other character is discarded, but the
other character is printed (don't rely on this, as further format
--- findutils-4.4.0/find/find.c
+++ findutils-4.4.0/find/find.c
@@ -120,6 +120,35 @@ int get_current_dirfd(void)
return AT_FDCWD;
}
+#ifdef WITH_SELINUX
+static int
+fallback_getfilecon (const char *name, security_context_t *p, int prev_rv)
+{
+ /* Our original getfilecon call failed. Perhaps we can't follow a
+ symbolic link. If that might be the problem, lgetfilecon the link.
+ Otherwise, admit defeat. */
+ switch (errno)
+ {
+ case ENOENT:
+ case ENOTDIR:
+#ifdef DEBUG_STAT
+ fprintf(stderr, "fallback_getfilecon(): getfilecon(%s) failed; falling back on lgetfilecon()\n", name);
+#endif
+ return lgetfilecon (name, p);
+
+ case EACCES:
+ case EIO:
+ case ELOOP:
+ case ENAMETOOLONG:
+#ifdef EOVERFLOW
+ case EOVERFLOW: /* EOVERFLOW is not #defined on UNICOS. */
+#endif
+ default:
+ return prev_rv;
+ }
+}
+#endif /* WITH_SELINUX */
+
int
main (int argc, char **argv)
--- findutils-4.4.0/find/parser.c
+++ findutils-4.4.0/find/parser.c
@@ -53,6 +53,10 @@
#include <unistd.h>
#include <sys/stat.h>
+#ifdef WITH_SELINUX
+#include <selinux/selinux.h>
+#endif
+
#if ENABLE_NLS
# include <libintl.h>
# define _(Text) gettext (Text)
@@ -156,6 +160,9 @@ static boolean parse_noignore_race PARAM
static boolean parse_warn PARAMS((const struct parser_table*, char *argv[], int *arg_ptr));
static boolean parse_xtype PARAMS((const struct parser_table*, char *argv[], int *arg_ptr));
static boolean parse_quit PARAMS((const struct parser_table*, char *argv[], int *arg_ptr));
+#ifdef WITH_SELINUX
+static boolean parse_context PARAMS((const struct parser_table*, char *argv[], int *arg_ptr));
+#endif
boolean parse_print PARAMS((const struct parser_table*, char *argv[], int *arg_ptr));
@@ -252,6 +259,9 @@ static struct parser_table const parse_t
PARSE_TEST ("cmin", cmin), /* GNU */
PARSE_TEST ("cnewer", cnewer), /* GNU */
{ARG_TEST, "ctime", parse_time, pred_ctime}, /* POSIX */
+#ifdef WITH_SELINUX
+ PARSE_TEST ("context", context), /* GNU */
+#endif
PARSE_POSOPT ("daystart", daystart), /* GNU */
PARSE_ACTION ("delete", delete), /* GNU, Mac OS, FreeBSD */
PARSE_OPTION ("d", d), /* Mac OS X, FreeBSD, NetBSD, OpenBSD, but deprecated in favour of -depth */
@@ -348,6 +358,85 @@ static struct parser_table const parse_t
static const char *first_nonoption_arg = NULL;
static const struct parser_table *noop = NULL;
+#ifdef WITH_SELINUX
+static int
+fallback_getfilecon (const char *name, security_context_t *p, int prev_rv)
+{
+ /* Our original getfilecon call failed. Perhaps we can't follow a
+ symbolic link. If that might be the problem, lgetfilecon the link.
+ Otherwise, admit defeat. */
+ switch (errno)
+ {
+ case ENOENT:
+ case ENOTDIR:
+#ifdef DEBUG_STAT
+ fprintf(stderr, "fallback_getfilecon(): getfilecon(%s) failed; falling back on lgetfilecon()\n", name);
+#endif
+ return lgetfilecon (name, p);
+
+ case EACCES:
+ case EIO:
+ case ELOOP:
+ case ENAMETOOLONG:
+#ifdef EOVERFLOW
+ case EOVERFLOW: /* EOVERFLOW is not #defined on UNICOS. */
+#endif
+ default:
+ return prev_rv;
+ }
+}
+
+/* optionh_getfilecon implements the getfilecon operation when the
+ -H option is in effect.
+
+ If the item to be examined is a command-line argument, we follow
+ symbolic links. If the getfilecon call fails on the command-line
+ item, we fall back on the properties of the symbolic link.
+
+ If the item to be examined is not a command-line argument, we
+ examine the link itself. */
+int
+optionh_getfilecon (const char *name, security_context_t *p)
+{
+ if (state.curdepth == 0)
+ {
+ /* This file is from the command line; deference the link (if it
+ is a link). */
+ int rv = getfilecon (name, p);
+ if (0 == rv)
+ return 0; /* success */
+ else
+ return fallback_getfilecon (name, p, rv);
+ }
+ else
+ {
+ /* Not a file on the command line; do not derefernce the link. */
+ return lgetfilecon (name, p);
+ }
+}
+
+/* optionl_getfilecon implements the getfilecon operation when the
+ -L option is in effect. That option makes us examine the thing the
+ symbolic link points to, not the symbolic link itself. */
+int
+optionl_getfilecon (const char *name, security_context_t *p)
+{
+ int rv = getfilecon (name, p);
+ if (rv == 0)
+ return 0; /* normal case. */
+ else
+ return fallback_getfilecon (name, p, rv);
+}
+
+/* optionp_getfilecon implements the stat operation when the -P
+ option is in effect (this is also the default). That option makes
+ us examine the symbolic link itself, not the thing it points to. */
+int
+optionp_getfilecon (const char *name, security_context_t *p)
+{
+ return lgetfilecon (name, p);
+}
+#endif /* WITH_SELINUX */
void
check_option_combinations(const struct predicate *p)
@@ -451,11 +540,17 @@ set_follow_state(enum SymlinkOption opt)
{
case SYMLINK_ALWAYS_DEREF: /* -L */
options.xstat = optionl_stat;
+#ifdef WITH_SELINUX
+ options.x_getfilecon = optionl_getfilecon;
+#endif
options.no_leaf_check = true;
break;
case SYMLINK_NEVER_DEREF: /* -P (default) */
options.xstat = optionp_stat;
+#ifdef WITH_SELINUX
+ options.x_getfilecon = optionp_getfilecon;
+#endif
/* Can't turn no_leaf_check off because the user might have specified
* -noleaf anyway
*/
@@ -463,6 +558,9 @@ set_follow_state(enum SymlinkOption opt)
case SYMLINK_DEREF_ARGSONLY: /* -H */
options.xstat = optionh_stat;
+#ifdef WITH_SELINUX
+ options.x_getfilecon = optionh_getfilecon;
+#endif
options.no_leaf_check = true;
}
}
@@ -1124,6 +1222,10 @@ tests (N can be +N or -N or N): -amin N
-cnewer FILE -ctime N -empty -false -fstype TYPE -gid N -group NAME\n\
-ilname PATTERN -iname PATTERN -inum N -iwholename PATTERN -iregex PATTERN\n\
-links N -lname PATTERN -mmin N -mtime N -name PATTERN -newer FILE"));
+#ifdef WITH_SELINUX
+ puts (_("\
+ -context CONTEXT"));
+#endif
puts (_("\
-nouser -nogroup -path PATTERN -perm [+-]MODE -regex PATTERN\n\
-readable -writable -executable\n\
@@ -2492,6 +2594,10 @@ parse_version (const struct parser_table
printf("LEAF_OPTIMISATION ");
++features;
#endif
+#if defined (WITH_SELINUX)
+ printf ("SELINUX ");
+ ++features;
+#endif
flags = 0;
if (is_fts_enabled(&flags))
@@ -2526,6 +2632,32 @@ parse_version (const struct parser_table
exit (0);
}
+#ifdef WITH_SELINUX
+static boolean
+parse_context (const struct parser_table* entry, char **argv, int *arg_ptr)
+{
+ struct predicate *our_pred;
+
+ if (argv == NULL || argv[*arg_ptr] == NULL)
+ return false;
+
+ if (is_selinux_enabled () <= 0)
+ {
+ error (1, 0, _("invalid predicate -context: SELinux is not enabled."));
+ return false;
+ }
+ our_pred = insert_primary (entry);
+ our_pred->need_stat = false;
+#ifdef DEBUG
+ our_pred->p_name = find_pred_name (pred_context);
+#endif /*DEBUG*/
+ our_pred->args.scontext = argv[*arg_ptr];
+
+ (*arg_ptr)++;
+ return true;
+}
+#endif /* WITH_SELINUX */
+
static boolean
parse_xdev (const struct parser_table* entry, char **argv, int *arg_ptr)
{
@@ -2777,7 +2909,7 @@ insert_fprintf (struct format_val *vec,
if (*scan2 == '.')
for (scan2++; ISDIGIT (*scan2); scan2++)
/* Do nothing. */ ;
- if (strchr ("abcdDfFgGhHiklmMnpPsStuUyY", *scan2))
+ if (strchr ("abcdDfFgGhHiklmMnpPsStuUyYZ", *scan2))
{
segmentp = make_segment (segmentp, format, scan2 - format,
KIND_FORMAT, *scan2, 0,
@@ -2904,6 +3036,7 @@ make_segment (struct segment **segment,
case 'h': /* leading directories part of path */
case 'p': /* pathname */
case 'P': /* pathname with ARGV element stripped */
+ case 'Z': /* SELinux security context */
*fmt++ = 's';
break;
--- findutils-4.4.0/find/pred.c
+++ findutils-4.4.0/find/pred.c
@@ -47,6 +47,10 @@
#include "error.h"
#include "verify.h"
+#ifdef WITH_SELINUX
+#include <selinux/selinux.h>
+#endif /*WITH_SELINUX*/
+
#if ENABLE_NLS
# include <libintl.h>
# define _(Text) gettext (Text)
@@ -229,6 +233,9 @@ struct pred_assoc pred_table[] =
{pred_user, "user "},
{pred_writable, "writable "},
{pred_xtype, "xtype "},
+#ifdef WITH_SELINUX
+ {pred_context, "context"},
+#endif /*WITH_SELINUX*/
{0, "none "}
};
#endif
@@ -1053,6 +1060,27 @@ do_fprintf(struct format_val *dest,
mode_to_filetype(stat_buf->st_mode & S_IFMT));
}
break;
+ case 'Z': /* SELinux security context */
+#ifdef WITH_SELINUX
+ {
+ security_context_t scontext;
+ int rv;
+ rv = options.x_getfilecon (state.rel_pathname, &scontext);
+
+ if (rv < 0)
+ {
+ fprintf (stderr, "getfilecon(%s): %s", pathname,
+ strerror (errno));
+ fflush (stderr);
+ }
+ else
+ {
+ checked_fprintf (dest, segment->text, scontext);
+ freecon (scontext);
+ }
+ }
+#endif /* WITH_SELINUX */
+ break;
}
/* end of KIND_FORMAT case */
break;
@@ -1841,6 +1869,33 @@ pred_xtype (const char *pathname, struct
*/
return (pred_type (pathname, &sbuf, pred_ptr));
}
+
+
+#ifdef WITH_SELINUX
+
+boolean
+pred_context (const char *pathname, struct stat *stat_buf,
+ struct predicate *pred_ptr)
+{
+ int rv;
+ security_context_t scontext;
+
+ rv = options.x_getfilecon (state.rel_pathname, &scontext);
+
+ if (rv < 0)
+ {
+ fprintf (stderr, "getfilecon(%s): %s\n", pathname, strerror (errno));
+ fflush (stderr);
+ return false;
+ }
+
+ rv = fnmatch (pred_ptr->args.scontext, scontext, 0) == 0;
+ freecon (scontext);
+ return rv;
+}
+
+#endif /*WITH_SELINUX*/
+
/* 1) fork to get a child; parent remembers the child pid
2) child execs the command requested
--- findutils-4.4.0/find/tree.c
+++ findutils-4.4.0/find/tree.c
@@ -953,7 +953,10 @@ static struct pred_cost_lookup costlooku
{ pred_used , NeedsStatInfo },
{ pred_user , NeedsStatInfo },
{ pred_writable , NeedsAccessInfo },
- { pred_xtype , NeedsType } /* roughly correct unless most files are symlinks */
+ { pred_xtype , NeedsType }, /* roughly correct unless most files are symlinks */
+#ifdef WITH_SELINUX
+ { pred_context , NeedsNothing } /* remove warning only:) */
+#endif
};
static int pred_table_sorted = 0;
@@ -1434,6 +1437,9 @@ get_new_pred (const struct parser_table
last_pred->need_stat = true;
last_pred->need_type = true;
last_pred->args.str = NULL;
+#ifdef WITH_SELINUX
+ last_pred->args.scontext = NULL;
+#endif
last_pred->pred_next = NULL;
last_pred->pred_left = NULL;
last_pred->pred_right = NULL;
