findutils/findutils-selinux.patch

--- findutils-4.2.27/find/parser.c.selinux	2005-12-04 03:07:52.000000000 +0100
+++ findutils-4.2.27/find/parser.c	2006-01-12 07:36:36.000000000 +0100
@@ -47,6 +47,10 @@
 /* We need <unistd.h> for isatty(). */
 #include <unistd.h> 
 
+#ifdef WITH_SELINUX
+#include <selinux/selinux.h>
+#endif /*WITH_SELINUX*/
+
 #if ENABLE_NLS
 # include <libintl.h>
 # define _(Text) gettext (Text)
@@ -147,6 +151,9 @@
 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_scontext      PARAMS((const struct parser_table*, char *argv[], int *arg_ptr));
+#endif /*WITH_SELINUX*/
 
 
 
@@ -298,6 +305,8 @@
   {ARG_TEST, "-help",                 parse_help,    NULL},       /* GNU */
   {ARG_TEST, "version",               parse_version, NULL},	  /* GNU */
   {ARG_TEST, "-version",              parse_version, NULL},	  /* GNU */
+  {ARG_TEST, "context",               parse_scontext, pred_scontext},	/* SELinux */
+  {ARG_TEST, "-context",              parse_scontext, pred_scontext},	/* SELinux */
   {0, 0, 0, 0}
 };
 
@@ -803,6 +812,10 @@
       -nouser -nogroup -path PATTERN -perm [+-]MODE -regex PATTERN\n\
       -wholename PATTERN -size N[bcwkMG] -true -type [bcdpflsD] -uid N\n\
       -used N -user NAME -xtype [bcdpfls]\n"));
+#ifdef WITH_SELINUX
+  puts (_("\
+      -context CONTEXT\n"));
+#endif /*WITH_SELINUX*/
   puts (_("\
 actions: -delete -print0 -printf FORMAT -fprintf FILE FORMAT -print \n\
       -fprint0 FILE -fprint FILE -ls -fls FILE -prune -quit\n\
@@ -1727,6 +1740,29 @@
   exit (0);
 }
 
+#ifdef WITH_SELINUX
+
+static boolean
+parse_scontext ( const struct parser_table* entry, char **argv, int *arg_ptr)
+{
+  struct predicate *our_pred;
+
+  if ( (argv == NULL) || (argv[*arg_ptr] == NULL) )
+    return( false );
+
+  our_pred = insert_primary(entry);
+  our_pred->need_stat = false;
+#ifdef DEBUG
+  our_pred->p_name = find_pred_name (pred_scontext);
+#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)
 {
@@ -1964,7 +2000,11 @@
 	  if (*scan2 == '.')
 	    for (scan2++; ISDIGIT (*scan2); scan2++)
 	      /* Do nothing. */ ;
+#ifdef WITH_SELINUX
+	  if (strchr ("abcdDfFgGhHiklmMnpPstuUyYZ", *scan2))
+#else  /* WITH_SELINUX */
 	  if (strchr ("abcdDfFgGhHiklmMnpPstuUyY", *scan2))
+#endif /* WITH_SELINUX */
 	    {
 	      segmentp = make_segment (segmentp, format, scan2 - format,
 				       (int) *scan2);
@@ -2046,6 +2086,9 @@
     case 'H':			/* ARGV element file was found under */
     case 'p':			/* pathname */
     case 'P':			/* pathname with ARGV element stripped */
+#ifdef WITH_SELINUX
+    case 'Z':			/* SELinux security context */
+#endif /* WITH_SELINUX */
       *fmt++ = 's';
       break;
 
--- findutils-4.2.27/find/defs.h.selinux	2005-09-04 19:59:34.000000000 +0200
+++ findutils-4.2.27/find/defs.h	2006-01-12 07:36:19.000000000 +0100
@@ -131,6 +131,10 @@
 #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 /*WITH_SELINUX*/
+
 #if 1
 #include <stdbool.h>
 typedef bool boolean;
@@ -320,6 +324,9 @@
     struct dir_id   fileid;	/* samefile */
     mode_t type;		/* type */
     FILE *stream;		/* ls fls fprint0 */
+#ifdef WITH_SELINUX
+    security_context_t scontext; /* scontext */
+#endif /*WITH_SELINUX*/
     struct format_val printf_vec; /* printf fprintf fprint  */
   } args;
 
@@ -479,6 +486,9 @@
 boolean pred_used PARAMS((char *pathname, struct stat *stat_buf, struct predicate *pred_ptr));
 boolean pred_user PARAMS((char *pathname, struct stat *stat_buf, struct predicate *pred_ptr));
 boolean pred_xtype PARAMS((char *pathname, struct stat *stat_buf, struct predicate *pred_ptr));
+#ifdef WITH_SELINUX
+boolean pred_scontext PARAMS((char *pathname, struct stat *stat_buf, struct predicate *pred_ptr));
+#endif /* WITH_SELINUX */
 
 
 
@@ -568,6 +578,10 @@
    * can be changed with the positional option, -regextype.
    */
   int regex_options;
+
+#ifdef WITH_SELINUX
+  int (*x_getfilecon) ();
+#endif /* WITH_SELINUX */
 };
 extern struct options options;
 
--- findutils-4.2.27/find/Makefile.am.selinux	2005-07-03 18:07:08.000000000 +0200
+++ findutils-4.2.27/find/Makefile.am	2006-01-12 07:36:19.000000000 +0100
@@ -5,8 +5,9 @@
 # regexprops_SOURCES = regexprops.c
 find_SOURCES = find.c fstype.c parser.c pred.c tree.c util.c version.c
 EXTRA_DIST = defs.h $(man_MANS)
+DEFS = @DEFS@ -I. -I$(srcdir) -I.. -DWITH_SELINUX
 INCLUDES = -I../gnulib/lib -I$(top_srcdir)/lib -I$(top_srcdir)/gnulib/lib -I../intl -DLOCALEDIR=\"$(localedir)\"
-LDADD = ../lib/libfind.a ../gnulib/lib/libgnulib.a @INTLLIBS@
+LDADD = ../lib/libfind.a ../gnulib/lib/libgnulib.a @INTLLIBS@ -lselinux
 man_MANS = find.1
 SUBDIRS = testsuite
 
--- findutils-4.2.27/find/find.1.selinux	2005-12-05 18:05:02.000000000 +0100
+++ findutils-4.2.27/find/find.1	2006-01-12 07:36:19.000000000 +0100
@@ -483,6 +483,9 @@
 link to a file of type \fIc\fR; if the \-L option has been given, true
 if \fIc\fR is `l'.  In other words, for symbolic links, \-xtype checks
 the type of the file that \-type does not check.
+.IP "\-context \fIscontext\fR"
+.IP "\--context \fIscontext\fR"
+(SELinux only) File has the security context \fIscontext\fR.
 
 .SS ACTIONS
 .IP "\-delete\fR"
@@ -785,6 +788,8 @@
 File's type (like in ls \-l), 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).
--- findutils-4.2.27/find/find.c.selinux	2005-11-11 08:41:37.000000000 +0100
+++ findutils-4.2.27/find/find.c	2006-01-12 07:36:19.000000000 +0100
@@ -244,6 +244,93 @@
 {
   return lstat(name, p);
 }
+#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 (0 == state.curdepth) 
+    {
+      /* 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 (0 == rv)
+    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 */
 
 #ifdef DEBUG_STAT
 static uintmax_t stat_count = 0u;
@@ -272,11 +359,17 @@
     {
     case SYMLINK_ALWAYS_DEREF:  /* -L */
       options.xstat = optionl_stat;
+#ifdef WITH_SELINUX
+      options.x_getfilecon = optionl_getfilecon;
+#endif /* WITH_SELINUX */
       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 /* WITH_SELINUX */
       /* Can't turn no_leaf_check off because the user might have specified 
        * -noleaf anyway
        */
@@ -284,6 +377,9 @@
       
     case SYMLINK_DEREF_ARGSONLY: /* -H */
       options.xstat = optionh_stat;
+#ifdef WITH_SELINUX
+      options.x_getfilecon = optionh_getfilecon;
+#endif /* WITH_SELINUX */
       options.no_leaf_check = true;
     }
 
@@ -389,6 +485,9 @@
 int
 main (int argc, char **argv)
 {
+#ifdef WITH_SELINUX
+  int is_selinux_enabled_flag = is_selinux_enabled()>0;
+#endif /* WITH_SELINUX */
   int i;
   const struct parser_table *entry_close, *entry_print, *entry_open;
   const struct parser_table *parse_entry; /* Pointer to the parsing table entry for this expression. */
@@ -538,6 +637,14 @@
       if (strchr ("-!(),", argv[i][0]) == NULL)
 	usage (_("paths must precede expression"));
       predicate_name = argv[i];
+#ifdef WITH_SELINUX
+      if (! is_selinux_enabled_flag) {
+	if ((strncmp(predicate_name,"-context",strlen("-context"))==0) ||
+	    (strncmp(predicate_name,"--context",strlen("--context"))==0)) {
+	  error (1, 0,_("Error: invalid predicate %s: the kernel is not selinux-enabled.\n"),predicate_name);
+	}
+      }
+#endif
       parse_entry = find_parser (predicate_name);
       if (parse_entry == NULL)
 	{
@@ -1807,7 +1914,7 @@
 static void
 process_dir (char *pathname, char *name, int pathlen, struct stat *statp, char *parent)
 {
-  int subdirs_left;		/* Number of unexamined subdirs in PATHNAME. */
+  int subdirs_left=0;		/* Number of unexamined subdirs in PATHNAME. */
   boolean subdirs_unreliable;	/* if true, cannot use dir link count as subdir limif (if false, it may STILL be unreliable) */
   int idx;			/* Which entry are we on? */
   struct stat stat_buf;
--- findutils-4.2.27/find/util.c.selinux	2005-07-01 23:45:18.000000000 +0200
+++ findutils-4.2.27/find/util.c	2006-01-12 07:36:19.000000000 +0100
@@ -78,6 +78,9 @@
   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;
--- findutils-4.2.27/find/pred.c.selinux	2005-11-30 07:17:15.000000000 +0100
+++ findutils-4.2.27/find/pred.c	2006-01-12 07:36:28.000000000 +0100
@@ -38,6 +38,14 @@
 #include "buildcmd.h"
 #include "yesno.h"
 
+#ifdef WITH_SELINUX
+#include <selinux/selinux.h>
+#endif /*WITH_SELINUX*/
+
+#ifndef FNM_CASEFOLD
+#define FNM_CASEFOLD (1<<4)
+#endif  /*FNM_CASEFOLD*/
+
 #if ENABLE_NLS
 # include <libintl.h>
 # define _(Text) gettext (Text)
@@ -83,7 +91,6 @@
 
 
 
-
 /* Get or fake the disk device blocksize.
    Usually defined by sys/param.h (if at all).  */
 #ifndef DEV_BSIZE
@@ -215,6 +222,9 @@
   {pred_used, "used    "},
   {pred_user, "user    "},
   {pred_xtype, "xtype   "},
+#ifdef WITH_SELINUX
+  {pred_scontext, "context"},
+#endif /*WITH_SELINUX*/
   {0, "none    "}
 };
 
@@ -903,6 +913,25 @@
 		     mode_to_filetype(stat_buf->st_mode & S_IFMT));
 	  }
 	  break;
+#ifdef WITH_SELINUX
+      case 'Z':               /* SELinux security context */
+        {
+          security_context_t scontext;
+          int rv;
+          rv = (*options.x_getfilecon)(state.rel_pathname, &scontext);
+
+          if ( rv < 0 ) {
+            (void) fprintf(stderr, "getfileconf(%s): %s",
+                           pathname, strerror(errno));
+            (void) fflush(stderr);
+          }
+          else {
+	      (void) fprintf (fp, segment->text, scontext);
+	      freecon(scontext);
+          }
+        }
+        break ;
+#endif /* WITH_SELINUX */
 	}
     }
   return true;
@@ -1493,6 +1522,34 @@
    */
   return (pred_type (pathname, &sbuf, pred_ptr));
 }
+  
+
+#ifdef WITH_SELINUX
+
+boolean
+pred_scontext ( pathname, stat_buf, pred_ptr )
+     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 ) {
+    (void) fprintf(stderr, "getfilecon(%s): %s\n", pathname, strerror(errno));
+    (void) 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