#include <openssl/crypto.h>
#include "internal/dso_conf.h"
#include "e_os.h"
+#include "buildinf.h"
+#include "internal/thread_once.h"
+
+static char *seed_sources = NULL;
+static CRYPTO_ONCE init_info = CRYPTO_ONCE_STATIC_INIT;
+
+DEFINE_RUN_ONCE_STATIC(init_info_strings)
+{
+ {
+ static char seeds[512] = "";
+
+#define add_seeds_string(str) \
+ do { \
+ if (seeds[0] != '\0') \
+ OPENSSL_strlcat(seeds, " ", sizeof(seeds)); \
+ OPENSSL_strlcat(seeds, str, sizeof(seeds)); \
+ } while (0)
+#define add_seeds_stringlist(label, strlist) \
+ do { \
+ add_seeds_string(label "("); \
+ { \
+ const char *dev[] = strlist; \
+ int first = 1; \
+ \
+ for (; *dev != NULL; dev++) { \
+ if (!first) \
+ OPENSSL_strlcat(seeds, " ", sizeof(seeds)); \
+ first = 0; \
+ OPENSSL_strlcat(seeds, *dev, sizeof(seeds)); \
+ } \
+ } \
+ OPENSSL_strlcat(seeds, ")", sizeof(seeds)); \
+ } while (0)
+
+#ifdef OPENSSL_RAND_SEED_NONE
+ add_seeds_string("none");
+#endif
+#ifdef OPENSSL_RAND_SEED_RTDSC
+ add_seeds_string("stdsc");
+#endif
+#ifdef OPENSSL_RAND_SEED_RDCPU
+ add_seeds_string("rdrand ( rdseed rdrand )");
+#endif
+#ifdef OPENSSL_RAND_SEED_LIBRANDOM
+ add_seeds_string("C-library-random");
+#endif
+#ifdef OPENSSL_RAND_SEED_GETRANDOM
+ add_seeds_string("getrandom-syscall");
+#endif
+#ifdef OPENSSL_RAND_SEED_DEVRANDOM
+ add_seeds_stringlist("random-device", { DEVRANDOM, NULL });
+#endif
+#ifdef OPENSSL_RAND_SEED_EGD
+ add_seeds_stringlist("EGD", { DEVRANDOM_EGD, NULL });
+#endif
+#ifdef OPENSSL_RAND_SEED_OS
+ add_seeds_string("os-specific");
+#endif
+ seed_sources = seeds;
+ }
+ return 1;
+}
const char *OPENSSL_info(int t)
{
+ /*
+ * We don't care about the result. Worst case scenario, the strings
+ * won't be initialised, i.e. remain NULL, which means that the info
+ * isn't available anyway...
+ */
+ (void)RUN_ONCE(&init_info, init_info_strings);
+
switch (t) {
case OPENSSL_INFO_CONFIG_DIR:
return OPENSSLDIR;
static const char list_sep[] = { LIST_SEPARATOR_CHAR, '\0' };
return list_sep;
}
+ case OPENSSL_INFO_SEED_SOURCE:
+ return seed_sources;
default:
break;
}