From a4bafc47107165a839d6aec22e4cef1724785914 Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Tue, 10 Nov 2009 20:51:22 +0100
Subject: [PATCH] First working cipher import

---
 import_gcry.py                              | 90 +++++++++++++++++++--
 include/grub/{gcry_wrap.h => cipher_wrap.h} | 13 +++
 include/grub/crypto.h                       |  1 +
 3 files changed, 99 insertions(+), 5 deletions(-)
 rename include/grub/{gcry_wrap.h => cipher_wrap.h} (92%)

diff --git a/import_gcry.py b/import_gcry.py
index cc06142e6..9a53a356a 100644
--- a/import_gcry.py
+++ b/import_gcry.py
@@ -10,10 +10,17 @@ indir = sys.argv[1]
 outdir = sys.argv[2]
 
 basedir = os.path.join (outdir, "gcry")
-os.makedirs (basedir)
+try:
+    os.makedirs (basedir)
+except:
+    print ("WARNING: %s already exists" % basedir)
 cipher_dir_in = os.path.join (indir, "cipher")
 cipher_dir_out = os.path.join (basedir, "cipher")
-os.makedirs (cipher_dir_out)
+try:
+    os.makedirs (cipher_dir_out)
+except:
+    print ("WARNING: %s already exists" % cipher_dir_out)
+
 cipher_files = os.listdir (cipher_dir_in)
 conf = open (os.path.join (outdir, "conf", "gcry.rmk"), "w")
 conf.write ("# -*- makefile -*-\n\n")
@@ -34,7 +41,33 @@ for cipher_file in cipher_files:
         fw.write ("   import_gcry.py. Please don't modify it */\n");
         ciphernames = []
         mdnames = []
+        hold = False
+        skip = False
+        skip2 = False
         for line in f:
+            if skip:
+                if line[0] == "}":
+                    skip = False
+                continue
+            if skip2:
+                if not re.search (" *};", line) is None:
+                    skip2 = False
+                continue
+            if hold:
+                hold = False
+                # We're optimising for size.
+                elif not re.match ("(run_selftests|selftest|_gcry_aes_c.._..c|_gcry_[a-z0-9]*_hash_buffer)", line) is None:
+                    skip = True
+                    fname = re.match ("[a-zA-Z0-9_]*", line).group ()
+                    chmsg = "(%s): Removed." % fname
+                    if nch:
+                        chlognew = "%s\n	%s" % (chlognew, chmsg)
+                    else:
+                        chlognew = "%s %s" % (chlognew, chmsg)
+                        nch = True
+                    continue
+                else:
+                    fw.write (holdline)
             m = re.match ("#include <.*>", line)
             if not m is None:
                 chmsg = "Removed including of %s" % \
@@ -55,6 +88,46 @@ for cipher_file in cipher_files:
                 mdname = line [len ("gcry_md_spec_t"):].strip ()
                 mdname = re.match("[a-zA-Z0-9_]*",mdname).group ()
                 mdnames.append (mdname)
+            m = re.match ("static const char \*selftest.*;$", line)
+            if not m is None:
+                fname = line[len ("static const char \*"):]
+                fname = re.match ("[a-zA-Z0-9_]*", fname).group ()
+                chmsg = "(%s): Removed declaration." % fname
+                if nch:
+                    chlognew = "%s\n	%s" % (chlognew, chmsg)
+                else:
+                    chlognew = "%s %s" % (chlognew, chmsg)
+                    nch = True
+                continue
+            m = re.match ("(static const char( |)\*|static gpg_err_code_t|void)$", line)
+            if not m is None:
+                hold = True
+                holdline = line
+                continue
+            m = re.match ("cipher_extra_spec_t", line)
+            if isc and not m is None:
+                skip2 = True
+                fname = line[len ("cipher_extra_spec_t "):]
+                fname = re.match ("[a-zA-Z0-9_]*", fname).group ()
+                chmsg = "(%s): Removed." % fname
+                if nch:
+                    chlognew = "%s\n	%s" % (chlognew, chmsg)
+                else:
+                    chlognew = "%s %s" % (chlognew, chmsg)
+                    nch = True
+                continue
+            m = re.match ("md_extra_spec_t", line)
+            if isc and not m is None:
+                skip2 = True
+                fname = line[len ("md_extra_spec_t "):]
+                fname = re.match ("[a-zA-Z0-9_]*", fname).group ()
+                chmsg = "(%s): Removed." % fname
+                if nch:
+                    chlognew = "%s\n	%s" % (chlognew, chmsg)
+                else:
+                    chlognew = "%s %s" % (chlognew, chmsg)
+                    nch = True
+                continue
             fw.write (line)
         if len (ciphernames) > 0 or len (mdnames) > 0:
             modname = cipher_file [0:len(cipher_file) - 2]
@@ -120,20 +193,27 @@ for cipher_file in cipher_files:
 outfile = os.path.join (cipher_dir_out, "types.h")
 fw=open (outfile, "w")
 fw.write ("#include <grub/types.h>\n")
-fw.write ("#include <grub/gcry_wrap.h>\n")
+fw.write ("#include <grub/cipher_wrap.h>\n")
 chlog = "%s	* types.h: New file.\n" % chlog
 fw.close ()
 
+outfile = os.path.join (cipher_dir_out, "memory.h")
+fw=open (outfile, "w")
+fw.write ("#include <grub/cipher_wrap.h>\n")
+chlog = "%s	* memory.h: New file.\n" % chlog
+fw.close ()
+
+
 outfile = os.path.join (cipher_dir_out, "cipher.h")
 fw=open (outfile, "w")
 fw.write ("#include <grub/crypto.h>\n")
-fw.write ("#include <grub/gcry_wrap.h>\n")
+fw.write ("#include <grub/cipher_wrap.h>\n")
 chlog = "%s	* cipher.h: Likewise.\n" % chlog
 fw.close ()
 
 outfile = os.path.join (cipher_dir_out, "g10lib.h")
 fw=open (outfile, "w")
-fw.write ("#include <grub/gcry_wrap.h>\n")
+fw.write ("#include <grub/cipher_wrap.h>\n")
 chlog = "%s	* g10lib.h: Likewise.\n" % chlog
 fw.close ()
 
diff --git a/include/grub/gcry_wrap.h b/include/grub/cipher_wrap.h
similarity index 92%
rename from include/grub/gcry_wrap.h
rename to include/grub/cipher_wrap.h
index 37a1ee4d7..9e6242b7f 100644
--- a/include/grub/gcry_wrap.h
+++ b/include/grub/cipher_wrap.h
@@ -68,4 +68,17 @@ grub_assert_real (const char *file, int line, int cond)
     grub_fatal ("Assertion failed at %s:%d\n", file, line);
 }
 
+/* Selftests are in separate modules.  */
+static inline char *
+selftest (void)
+{
+  return NULL;
+}
+
+static inline int
+fips_mode (void)
+{
+  return 0;
+}
+
 #endif
diff --git a/include/grub/crypto.h b/include/grub/crypto.h
index bd236116d..17f14de86 100644
--- a/include/grub/crypto.h
+++ b/include/grub/crypto.h
@@ -64,6 +64,7 @@ typedef enum
     GPG_ERR_WRONG_PUBKEY_ALGO,
   } gcry_err_code_t;
 #define gpg_err_code_t gcry_err_code_t
+#define gpg_error_t gcry_err_code_t
 
 enum gcry_cipher_modes 
   {