rand: remove unimplemented librandom stub code
[openssl.git] / crypto / info.c
index 968184fceb819694f29e3666d70fffd2f15b2890..c823283279ba9837e9243f5fd48168314220f32c 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2019-2023 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
 #include "crypto/dso_conf.h"
 #include "internal/thread_once.h"
 #include "internal/cryptlib.h"
-#include "e_os.h"
+#include "internal/e_os.h"
 #include "buildinf.h"
 
 #if defined(__arm__) || defined(__arm) || defined(__aarch64__)
 # include "arm_arch.h"
+# define CPU_INFO_STR_LEN 128
+#elif defined(__s390__) || defined(__s390x__)
+# include "s390x_arch.h"
+# define CPU_INFO_STR_LEN 2048
+#elif defined(__riscv)
+# include "crypto/riscv_arch.h"
+# define CPU_INFO_STR_LEN 2048
+#else
+# define CPU_INFO_STR_LEN 128
 #endif
 
 /* extern declaration to avoid warning */
@@ -24,7 +33,7 @@ extern char ossl_cpu_info_str[];
 
 static char *seed_sources = NULL;
 
-char ossl_cpu_info_str[128] = "";
+char ossl_cpu_info_str[CPU_INFO_STR_LEN] = "";
 #define CPUINFO_PREFIX "CPUINFO: "
 
 static CRYPTO_ONCE init_info = CRYPTO_ONCE_STATIC_INIT;
@@ -39,10 +48,10 @@ DEFINE_RUN_ONCE_STATIC(init_info_strings)
 
     BIO_snprintf(ossl_cpu_info_str, sizeof(ossl_cpu_info_str),
                  CPUINFO_PREFIX "OPENSSL_ia32cap=0x%llx:0x%llx",
-                 (long long)OPENSSL_ia32cap_P[0] |
-                 (long long)OPENSSL_ia32cap_P[1] << 32,
-                 (long long)OPENSSL_ia32cap_P[2] |
-                 (long long)OPENSSL_ia32cap_P[3] << 32);
+                 (unsigned long long)OPENSSL_ia32cap_P[0] |
+                 (unsigned long long)OPENSSL_ia32cap_P[1] << 32,
+                 (unsigned long long)OPENSSL_ia32cap_P[2] |
+                 (unsigned long long)OPENSSL_ia32cap_P[3] << 32);
     if ((env = getenv("OPENSSL_ia32cap")) != NULL)
         BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
                      sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
@@ -56,6 +65,69 @@ DEFINE_RUN_ONCE_STATIC(init_info_strings)
         BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
                      sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
                      " env:%s", env);
+# elif defined(__s390__) || defined(__s390x__)
+    const char *env;
+
+    BIO_snprintf(ossl_cpu_info_str, sizeof(ossl_cpu_info_str),
+                 CPUINFO_PREFIX "OPENSSL_s390xcap="
+                 "stfle:0x%llx:0x%llx:0x%llx:0x%llx:"
+                 "kimd:0x%llx:0x%llx:"
+                 "klmd:0x%llx:0x%llx:"
+                 "km:0x%llx:0x%llx:"
+                 "kmc:0x%llx:0x%llx:"
+                 "kmac:0x%llx:0x%llx:"
+                 "kmctr:0x%llx:0x%llx:"
+                 "kmo:0x%llx:0x%llx:"
+                 "kmf:0x%llx:0x%llx:"
+                 "prno:0x%llx:0x%llx:"
+                 "kma:0x%llx:0x%llx:"
+                 "pcc:0x%llx:0x%llx:"
+                 "kdsa:0x%llx:0x%llx",
+                 OPENSSL_s390xcap_P.stfle[0], OPENSSL_s390xcap_P.stfle[1],
+                 OPENSSL_s390xcap_P.stfle[2], OPENSSL_s390xcap_P.stfle[3],
+                 OPENSSL_s390xcap_P.kimd[0], OPENSSL_s390xcap_P.kimd[1],
+                 OPENSSL_s390xcap_P.klmd[0], OPENSSL_s390xcap_P.klmd[1],
+                 OPENSSL_s390xcap_P.km[0], OPENSSL_s390xcap_P.km[1],
+                 OPENSSL_s390xcap_P.kmc[0], OPENSSL_s390xcap_P.kmc[1],
+                 OPENSSL_s390xcap_P.kmac[0], OPENSSL_s390xcap_P.kmac[1],
+                 OPENSSL_s390xcap_P.kmctr[0], OPENSSL_s390xcap_P.kmctr[1],
+                 OPENSSL_s390xcap_P.kmo[0], OPENSSL_s390xcap_P.kmo[1],
+                 OPENSSL_s390xcap_P.kmf[0], OPENSSL_s390xcap_P.kmf[1],
+                 OPENSSL_s390xcap_P.prno[0], OPENSSL_s390xcap_P.prno[1],
+                 OPENSSL_s390xcap_P.kma[0], OPENSSL_s390xcap_P.kma[1],
+                 OPENSSL_s390xcap_P.pcc[0], OPENSSL_s390xcap_P.pcc[1],
+                 OPENSSL_s390xcap_P.kdsa[0], OPENSSL_s390xcap_P.kdsa[1]);
+    if ((env = getenv("OPENSSL_s390xcap")) != NULL)
+        BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
+                     sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
+                     " env:%s", env);
+# elif defined(__riscv)
+    const char *env;
+    char sep = '=';
+
+    BIO_snprintf(ossl_cpu_info_str, sizeof(ossl_cpu_info_str),
+                 CPUINFO_PREFIX "OPENSSL_riscvcap");
+    for (size_t i = 0; i < kRISCVNumCaps; ++i) {
+        if (OPENSSL_riscvcap_P[RISCV_capabilities[i].index]
+                & (1 << RISCV_capabilities[i].bit_offset)) {
+            /* Match, display the name */
+            BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
+                         sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
+                         "%c%s", sep, RISCV_capabilities[i].name);
+            /* Only the first sep is '=' */
+            sep = '_';
+        }
+    }
+    /* If no capability is found, add back the = */
+    if (sep == '=') {
+        BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
+                     sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
+                     "%c", sep);
+    }
+    if ((env = getenv("OPENSSL_riscvcap")) != NULL)
+        BIO_snprintf(ossl_cpu_info_str + strlen(ossl_cpu_info_str),
+                     sizeof(ossl_cpu_info_str) - strlen(ossl_cpu_info_str),
+                     " env:%s", env);
 # endif
 #endif
 
@@ -89,14 +161,15 @@ DEFINE_RUN_ONCE_STATIC(init_info_strings)
 #ifdef OPENSSL_RAND_SEED_NONE
         add_seeds_string("none");
 #endif
-#ifdef OPENSSL_RAND_SEED_RTDSC
-        add_seeds_string("stdsc");
+#ifdef OPENSSL_RAND_SEED_RDTSC
+        add_seeds_string("rdtsc");
 #endif
 #ifdef OPENSSL_RAND_SEED_RDCPU
+# ifdef __aarch64__
+        add_seeds_string("rndr ( rndrrs rndr )");
+# else
         add_seeds_string("rdrand ( rdseed rdrand )");
-#endif
-#ifdef OPENSSL_RAND_SEED_LIBRANDOM
-        add_seeds_string("C-library-random");
+# endif
 #endif
 #ifdef OPENSSL_RAND_SEED_GETRANDOM
         add_seeds_string("getrandom-syscall");