---
src/Makefile.in | 2 +-
src/fips.c | 39 ++++++++++++++++++++++++++++++++-------
2 files changed, 33 insertions(+), 8 deletions(-)
Index: libgcrypt-1.9.0/src/fips.c
===================================================================
--- libgcrypt-1.9.0.orig/src/fips.c
+++ libgcrypt-1.9.0/src/fips.c
@@ -603,23 +603,49 @@ run_random_selftests (void)
return !!err;
}
+#ifdef ENABLE_HMAC_BINARY_CHECK
+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;
+}
+#endif
+
/* 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?";
+ const char key[] = "orboDeJITITejsirpADONivirpUkvarP";
- if (!dladdr ("gcry_check_version", &info))
+ 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 ();
@@ -627,7 +652,7 @@ 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
@@ -636,7 +661,7 @@ 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++;