version bump

5 files changed, 336 insertions, 6 deletions

diff --git a/sys-apps/gradm/files/digest-gradm-1.2.1 b/sys-apps/gradm/files/digest-gradm-1.2.1
deleted file mode 100644
index 708b71ab7204..000000000000
--- a/sys-apps/gradm/files/digest-gradm-1.2.1
+++ /dev/null
@@ -1,2 +0,0 @@
-MD5 c01a10eecf430eb4a58180900b37903a gradm-1.2.1.tar.gz 41602
-MD5 618ddb3d563f4e3cbfb13c9c770dd99c chpax.c 4776
diff --git a/sys-apps/gradm/files/digest-gradm-1.4 b/sys-apps/gradm/files/digest-gradm-1.4
deleted file mode 100644
index 9677c4a04b8f..000000000000
--- a/sys-apps/gradm/files/digest-gradm-1.4
+++ /dev/null
@@ -1,2 +0,0 @@
-MD5 56e892fc50ca1fe0348712e849bb2e82 gradm-1.4.tar.gz 19382
-MD5 618ddb3d563f4e3cbfb13c9c770dd99c chpax.c 4776
diff --git a/sys-apps/gradm/files/digest-gradm-1.5 b/sys-apps/gradm/files/digest-gradm-1.5
deleted file mode 100644
index abb10ec69054..000000000000
--- a/sys-apps/gradm/files/digest-gradm-1.5
+++ /dev/null
@@ -1,2 +0,0 @@
-MD5 9c4a4a81a7e8974a902fdf6a2ecbdb1e gradm-1.5.tar.gz 27323
-MD5 618ddb3d563f4e3cbfb13c9c770dd99c chpax.c 4776
diff --git a/sys-apps/gradm/files/digest-gradm-1.6 b/sys-apps/gradm/files/digest-gradm-1.6
new file mode 100644
index 000000000000..d5911cc297de
--- /dev/null
+++ b/sys-apps/gradm/files/digest-gradm-1.6
@@ -0,0 +1 @@
+MD5 7f1eacca4c0be8a1e5c088a38c249d32 gradm-1.6.tar.gz 29934
diff --git a/sys-apps/gradm/files/gradm-1.6-chpax.c b/sys-apps/gradm/files/gradm-1.6-chpax.c
new file mode 100644
index 000000000000..9dd3dd880e36
--- /dev/null
+++ b/sys-apps/gradm/files/gradm-1.6-chpax.c
@@ -0,0 +1,335 @@
+/*
+ * This program manages various PaX related flags for ELF and a.out binaries.
+ * The flags only have effect when running the patched Linux kernel.
+ *
+ * Written by Solar Designer and placed in the public domain.
+ *
+ * Adapted to PaX by the PaX Team
+ * 
+ * Nov 10 2002 : Added multi{options,files} cmdline, zeroflag, nicer output 
+ * (+ double output if flags are changed and -v is specified), more error 
+ * handling.
+ *
+ * Dec 11 2002 : Explicit error messages and return value, even more
+ * error handling . (-jv)
+ *
+ */
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <linux/elf.h>
+#include <linux/a.out.h>
+
+#define HF_PAX_PAGEEXEC         1    /* 0: Paging based non-exec pages */
+#define HF_PAX_EMUTRAMP         2    /* 0: Emulate trampolines */
+#define HF_PAX_MPROTECT         4    /* 0: Restrict mprotect() */
+#define HF_PAX_RANDMMAP         8    /* 0: Randomize mmap() base */
+#define HF_PAX_RANDEXEC         16   /* 1: Randomize ET_EXEC base */
+#define HF_PAX_SEGMEXEC         32   /* 0: Segmentation based non-exec pages */
+
+#define	XCLOSE(fd)		\
+do				\
+{				\
+ if (close(fd))			\
+   perror("close");		\
+}				\
+while (0)
+
+static struct elf32_hdr	header_elf;
+static struct exec	header_aout;
+static void		*header;
+static int		header_size;
+static int		fd;
+
+static unsigned long	(*get_flags)();
+static void		(*put_flags)(unsigned long);
+
+
+static void		print_flags(unsigned long flags)
+{
+  printf(" * Paging based PAGE_EXEC       : %s \n"
+	 " * Trampolines                  : %s \n"
+	 " * mprotect()                   : %s \n"
+	 " * mmap() base                  : %s \n"
+	 " * ET_EXEC base                 : %s \n"
+	 " * Segmentation based PAGE_EXEC : %s \n",
+	 flags & HF_PAX_PAGEEXEC
+	 ? "disabled" : flags & HF_PAX_SEGMEXEC ? "enabled" : "enabled (overridden)",
+	 flags & HF_PAX_EMUTRAMP
+	 ? "emulated" : "not emulated",
+	 flags & HF_PAX_MPROTECT
+	 ? "not restricted" : "restricted",
+	 flags & HF_PAX_RANDMMAP
+	 ? "not randomized" : "randomized",
+	 flags & HF_PAX_RANDEXEC
+	 ? "randomized" : "not randomized",
+	 flags & HF_PAX_SEGMEXEC
+	 ? "disabled" : "enabled");
+}
+
+static unsigned long	get_flags_elf()
+{
+  return (header_elf.e_flags);
+}
+
+static void		put_flags_elf(unsigned long flags)
+{
+  header_elf.e_flags = flags;
+}
+
+static unsigned long	get_flags_aout()
+{
+  return (N_FLAGS(header_aout));
+}
+
+static void		put_flags_aout(unsigned long flags)
+{
+  N_SET_FLAGS(header_aout, flags & ~HF_PAX_RANDMMAP);
+}
+
+static int		read_header(char *name, int mode)
+{
+  char			*ptr;
+  int			size;
+  int			block;
+
+  if ((fd = open(name, mode)) < 0)
+    return 1;
+
+  ptr = (char *) &header_elf;
+  size = sizeof (header_elf);
+
+  do
+    {
+      block = read(fd, ptr, size);
+      if (block <= 0)
+	return (block ? 1 : 2);
+      ptr += block; size -= block;
+    }
+  while (size > 0);
+
+  memcpy(&header_aout, &header_elf, sizeof(header_aout));
+
+  if (!strncmp(header_elf.e_ident, ELFMAG, SELFMAG))
+    {
+      if (header_elf.e_type != ET_EXEC && header_elf.e_type != ET_DYN)
+	return 2;
+      if (header_elf.e_machine != EM_386)
+	return 3;
+      header = &header_elf;
+      header_size = sizeof(header_elf);
+      get_flags = get_flags_elf;
+      put_flags = put_flags_elf;
+    }
+
+  else if (N_MAGIC(header_aout) == NMAGIC ||
+	   N_MAGIC(header_aout) == ZMAGIC ||
+	   N_MAGIC(header_aout) == QMAGIC)
+    {
+      if (N_MACHTYPE(header_aout) != M_386)
+	return 3;
+      header = &header_aout;
+      header_size = 4;
+      get_flags = get_flags_aout; 
+      put_flags = put_flags_aout;
+    }
+
+  else
+    return (2);
+
+  return (0);
+}
+
+int	write_header()
+{
+  char	*ptr;
+  int	size;
+  int	block;
+
+  if (lseek(fd, 0, SEEK_SET))
+    return 1;
+
+  ptr = (char *) header;
+  size = header_size;
+
+  do
+    {
+      block = write(fd, ptr, size);
+      if (block <= 0)
+	break;
+      ptr += block;
+      size -= block;
+    }
+  while (size > 0);
+
+  return size;
+}
+
+
+#define USAGE \
+"Usage: %s OPTIONS FILE1 FILE2 FILEN ...\n" \
+"Manage PaX flags for binaries\n\n" \
+"  -P\tenforce paging based non-executable pages\n" \
+"  -p\tdo not enforce paging based non-executable pages\n" \
+"  -E\temulate trampolines\n" \
+"  -e\tdo not emulate trampolines\n" \
+"  -M\trestrict mprotect()\n" \
+"  -m\tdo not restrict mprotect()\n" \
+"  -R\trandomize mmap() base [ELF only]\n" \
+"  -r\tdo not randomize mmap() base [ELF only]\n" \
+"  -X\trandomize ET_EXEC base [ELF only]\n" \
+"  -x\tdo not randomize ET_EXEC base [ELF only]\n" \
+"  -S\tenforce segmentation based non-executable pages\n" \
+"  -s\tdo not enforce segmentation based non-executable pages\n" \
+"  -v\tview current flag mask \n" \
+"  -z\tzero flag mask (next flags still apply)\n\n" \
+"The flags only have effect when running the patched Linux kernel.\n"
+
+
+void	usage(char *name)
+{
+  printf(USAGE, (name ? name : "chpax"));
+  exit(1);
+}
+
+unsigned long	   scan_flags(unsigned long flags, char **argv, int *view)
+{
+  int		   index;
+
+  for (index = 1; argv[1][index]; index++)
+    switch (argv[1][index])
+      {
+
+      case 'p':
+	flags |= HF_PAX_PAGEEXEC;
+	continue ;
+
+      case 'P':
+	flags = (flags & ~HF_PAX_PAGEEXEC) | HF_PAX_SEGMEXEC;
+	continue ;
+
+      case 'E':
+	flags |= HF_PAX_EMUTRAMP;
+	continue ;
+
+      case 'e':
+	flags = (flags & ~HF_PAX_EMUTRAMP);
+	continue ;
+
+      case 'm':
+	flags |= HF_PAX_MPROTECT;
+	continue ;
+
+      case 'M':
+	flags = (flags & ~HF_PAX_MPROTECT);
+	continue ;
+
+      case 'r':
+	flags |= HF_PAX_RANDMMAP;
+	continue ;
+
+      case 'R':
+	flags = (flags & ~HF_PAX_RANDMMAP);
+	continue ;
+
+      case 'X':
+	flags |= HF_PAX_RANDEXEC;
+	continue ;
+
+      case 'x':
+	flags = (flags & ~HF_PAX_RANDEXEC);
+	continue ;
+
+      case 's':
+	flags |= HF_PAX_SEGMEXEC;
+	continue ;
+
+      case 'S':
+	flags = (flags & ~HF_PAX_SEGMEXEC) | HF_PAX_PAGEEXEC;
+	continue ;
+
+      case 'v':
+	*view = 1;
+	continue ;
+
+      case 'z':
+	flags = 0;
+	continue ;
+
+      default:
+	fprintf(stderr, "Unknown option %c \n", argv[1][index]);
+	usage(argv[0]);
+      }
+
+  return (flags);
+}
+
+
+int		main(int argc, char **argv)
+{
+  unsigned long flags;
+  unsigned long	aflags;
+  unsigned int	index;
+  int		mode;
+  char		*current;
+  int		error = 0;
+  int		view = 0;
+
+  if (argc < 3 || argv[1][0] != '-')
+    usage(argv[0]);
+
+   for (index = 2, current = argv[index]; current; current = argv[++index])
+    {
+
+      mode = (argc == 3 && !strcmp(argv[1], "-v") ? O_RDONLY : O_RDWR);
+
+      error = read_header(current, mode);
+      switch (error)
+	{
+	case 1:
+	  perror(current);
+	  continue ;
+	case 2:
+	  fprintf(stderr, "%s: Unknown file type (passed) \n", current);
+	  XCLOSE(fd);
+	  continue ;
+	case 3:
+	  fprintf(stderr, "%s: Wrong architecture (passed) \n", current);
+	  XCLOSE(fd);
+	  continue ;
+	}
+
+      aflags = get_flags();
+      flags = scan_flags(aflags, argv, &view);
+
+      if (view)
+	{
+	  printf("\n----[ Current flags for %s ]---- \n\n", current);
+	  print_flags(aflags);
+	  puts("");
+	}
+
+      put_flags(flags);
+
+      if (flags != aflags && write_header())
+	{
+	  perror(current);
+	  error = 4;
+	}
+
+      if (error)
+	fprintf(stderr, "%s : Flags were not updated . \n", current);
+      else if (view && aflags != flags)
+	{
+	  printf("\n----[ Updated flags for %s ]---- \n\n", current);
+	  print_flags(flags);
+	  puts("");
+	}
+
+      XCLOSE(fd);
+    }
+
+  return (error);
+}