forked from rpms/openssl
87 lines
2.2 KiB
Diff
87 lines
2.2 KiB
Diff
From aa3aebf132959e7e44876042efaf9ff24ffe0f2b Mon Sep 17 00:00:00 2001
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From: rpm-build <rpm-build>
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Date: Mon, 31 Jul 2023 09:41:27 +0200
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Subject: [PATCH 09/35] 0009-Add-Kernel-FIPS-mode-flag-support.patch
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Patch-name: 0009-Add-Kernel-FIPS-mode-flag-support.patch
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Patch-id: 9
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Patch-status: |
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# Add check to see if fips flag is enabled in kernel
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From-dist-git-commit: 9409bc7044cf4b5773639cce20f51399888c45fd
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---
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crypto/context.c | 36 ++++++++++++++++++++++++++++++++++++
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include/internal/provider.h | 3 +++
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2 files changed, 39 insertions(+)
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diff --git a/crypto/context.c b/crypto/context.c
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index e294ea1512..51002ba79a 100644
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--- a/crypto/context.c
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+++ b/crypto/context.c
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@@ -16,6 +16,41 @@
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#include "crypto/decoder.h"
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#include "crypto/context.h"
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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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+
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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 (secure_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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+int ossl_get_kernel_fips_flag()
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+{
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+ return kernel_fips_flag;
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+}
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+
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+
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struct ossl_lib_ctx_st {
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CRYPTO_RWLOCK *lock, *rand_crngt_lock;
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OSSL_EX_DATA_GLOBAL global;
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@@ -336,6 +371,7 @@ static int default_context_inited = 0;
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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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if (!CRYPTO_THREAD_init_local(&default_context_thread_local, NULL))
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goto err;
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diff --git a/include/internal/provider.h b/include/internal/provider.h
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index 18937f84c7..1446bf7afb 100644
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--- a/include/internal/provider.h
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+++ b/include/internal/provider.h
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@@ -112,6 +112,9 @@ int ossl_provider_init_as_child(OSSL_LIB_CTX *ctx,
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const OSSL_DISPATCH *in);
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void ossl_provider_deinit_child(OSSL_LIB_CTX *ctx);
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+/* FIPS flag access */
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+int ossl_get_kernel_fips_flag(void);
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+
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# ifdef __cplusplus
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}
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# endif
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--
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2.41.0
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