openssl3/0009-Add-Kernel-FIPS-mode-flag-support.patch

diff -up openssl-3.0.0-alpha13/crypto/context.c.kernel-fips openssl-3.0.0-alpha13/crypto/context.c
--- openssl-3.0.0-alpha13/crypto/context.c.kernel-fips	2021-03-16 00:09:55.814826432 +0100
+++ openssl-3.0.0-alpha13/crypto/context.c	2021-03-16 00:15:55.129043811 +0100
@@ -12,11 +12,54 @@
 #include "internal/bio.h"
 #include "internal/provider.h"
 
+#ifndef FIPS_MODULE
+# include <sys/types.h>
+# include <sys/stat.h>
+# include <fcntl.h>
+# include <unistd.h>
+# include <openssl/evp.h>
+#endif
+
 struct ossl_lib_ctx_onfree_list_st {
     ossl_lib_ctx_onfree_fn *fn;
     struct ossl_lib_ctx_onfree_list_st *next;
 };
 
+# ifndef FIPS_MODULE
+# define FIPS_MODE_SWITCH_FILE "/proc/sys/crypto/fips_enabled"
+
+static int kernel_fips_flag;
+
+static void read_kernel_fips_flag(void)
+{
+	char buf[2] = "0";
+	int fd;
+
+	if (ossl_safe_getenv("OPENSSL_FORCE_FIPS_MODE") != NULL) {
+		buf[0] = '1';
+	} else if ((fd = open(FIPS_MODE_SWITCH_FILE, O_RDONLY)) >= 0) {
+		while (read(fd, buf, sizeof(buf)) < 0 && errno == EINTR) ;
+		close(fd);
+	}
+
+	if (buf[0] == '1') {
+		kernel_fips_flag = 1;
+	}
+
+		return;
+}
+
+static int apply_kernel_fips_flag(OSSL_LIB_CTX *ctx)
+{
+	if (kernel_fips_flag) {
+		return EVP_default_properties_enable_fips(ctx, 1);
+	}
+
+	return 1;
+}
+# endif
+
+
 struct ossl_lib_ctx_st {
     CRYPTO_RWLOCK *lock;
     CRYPTO_EX_DATA data;
@@ -74,6 +117,12 @@ static int context_init(OSSL_LIB_CTX *ct
     if (!ossl_property_parse_init(ctx))
         goto err;
 
+# ifndef FIPS_MODULE
+	/* Preset the fips=yes default property with kernel FIPS mode */
+	if (!apply_kernel_fips_flag(ctx))
+		goto err;
+# endif
+
     return 1;
  err:
     if (exdata_done)
@@ -121,6 +170,7 @@ static CRYPTO_THREAD_LOCAL default_conte
 
 DEFINE_RUN_ONCE_STATIC(default_context_do_init)
 {
+	 read_kernel_fips_flag();
     return CRYPTO_THREAD_init_local(&default_context_thread_local, NULL)
         && context_init(&default_context_int);
 }