libgcrypt/libgcrypt-1.6.2-use-fipscheck.patch
2014-12-08 17:29:08 +01:00

88 lines
2.8 KiB
Diff

diff -up libgcrypt-1.6.2/src/fips.c.use-fipscheck libgcrypt-1.6.2/src/fips.c
--- libgcrypt-1.6.2/src/fips.c.use-fipscheck 2014-08-21 14:50:39.000000000 +0200
+++ libgcrypt-1.6.2/src/fips.c 2014-09-26 11:42:20.999588282 +0200
@@ -578,23 +578,48 @@ run_random_selftests (void)
return !!err;
}
+static int
+get_library_path(const char *libname, const char *symbolname, char *path, size_t pathlen)
+{
+ Dl_info info;
+ void *dl, *sym;
+ int rv = -1;
+
+ dl = dlopen(libname, RTLD_LAZY);
+ if (dl == NULL) {
+ return -1;
+ }
+
+ sym = dlsym(dl, symbolname);
+
+ if (sym != NULL && dladdr(sym, &info)) {
+ strncpy(path, info.dli_fname, pathlen-1);
+ path[pathlen-1] = '\0';
+ rv = 0;
+ }
+
+ dlclose(dl);
+
+ return rv;
+}
+
/* Run an integrity check on the binary. Returns 0 on success. */
static int
check_binary_integrity (void)
{
#ifdef ENABLE_HMAC_BINARY_CHECK
gpg_error_t err;
- Dl_info info;
+ char libpath[4096];
unsigned char digest[32];
int dlen;
char *fname = NULL;
- const char key[] = "What am I, a doctor or a moonshuttle conductor?";
-
- if (!dladdr ("gcry_check_version", &info))
+ const char key[] = "orboDeJITITejsirpADONivirpUkvarP";
+
+ if (get_library_path ("libgcrypt.so.20", "gcry_check_version", libpath, sizeof(libpath)))
err = gpg_error_from_syserror ();
else
{
- dlen = _gcry_hmac256_file (digest, sizeof digest, info.dli_fname,
+ dlen = _gcry_hmac256_file (digest, sizeof digest, libpath,
key, strlen (key));
if (dlen < 0)
err = gpg_error_from_syserror ();
@@ -602,7 +627,7 @@ check_binary_integrity (void)
err = gpg_error (GPG_ERR_INTERNAL);
else
{
- fname = xtrymalloc (strlen (info.dli_fname) + 1 + 5 + 1 );
+ fname = xtrymalloc (strlen (libpath) + 1 + 5 + 1 );
if (!fname)
err = gpg_error_from_syserror ();
else
@@ -611,7 +636,7 @@ check_binary_integrity (void)
char *p;
/* Prefix the basename with a dot. */
- strcpy (fname, info.dli_fname);
+ strcpy (fname, libpath);
p = strrchr (fname, '/');
if (p)
p++;
diff -up libgcrypt-1.6.2/src/Makefile.in.use-fipscheck libgcrypt-1.6.2/src/Makefile.in
--- libgcrypt-1.6.2/src/Makefile.in.use-fipscheck 2014-08-21 15:14:08.000000000 +0200
+++ libgcrypt-1.6.2/src/Makefile.in 2014-09-26 11:41:13.271059281 +0200
@@ -449,7 +449,7 @@ libgcrypt_la_LIBADD = $(gcrypt_res) \
../cipher/libcipher.la \
../random/librandom.la \
../mpi/libmpi.la \
- ../compat/libcompat.la $(GPG_ERROR_LIBS)
+ ../compat/libcompat.la $(GPG_ERROR_LIBS) -ldl
dumpsexp_SOURCES = dumpsexp.c
dumpsexp_CFLAGS = $(arch_gpg_error_cflags)