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