openssl3/contribs10/0009-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 +12,46 @@
 #include "internal/provider.h"
 #include "crypto/ctype.h"
 
+# include <sys/types.h>
+# include <sys/stat.h>
+# include <fcntl.h>
+# include <unistd.h>
+# include <openssl/evp.h>
+
 struct ossl_lib_ctx_onfree_list_st {
     ossl_lib_ctx_onfree_fn *fn;
     struct ossl_lib_ctx_onfree_list_st *next;
 };
 
+# 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;
+}
+
+int ossl_get_kernel_fips_flag()
+{
+       return kernel_fips_flag;
+}
+
+
 struct ossl_lib_ctx_st {
     CRYPTO_RWLOCK *lock;
     CRYPTO_EX_DATA data;
@@ -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);
 }
diff -up openssl-3.0.1/include/internal/provider.h.embed-fips openssl-3.0.1/include/internal/provider.h
--- openssl-3.0.1/include/internal/provider.h.embed-fips        2022-01-11 13:13:08.323238760 +0100
+++ openssl-3.0.1/include/internal/provider.h   2022-01-11 13:13:43.522558909 +0100
@@ -110,6 +110,9 @@ int ossl_provider_init_as_child(OSSL_LIB
                                 const OSSL_DISPATCH *in);
 void ossl_provider_deinit_child(OSSL_LIB_CTX *ctx);
 
+/* FIPS flag access */
+int ossl_get_kernel_fips_flag(void);
+
 # ifdef __cplusplus
 }
 # endif
1	diff -up openssl-3.0.0-alpha13/crypto/context.c.kernel-fips openssl-3.0.0-alpha13/crypto/context.c
2	--- openssl-3.0.0-alpha13/crypto/context.c.kernel-fips 2021-03-16 00:09:55.814826432 +0100
3	+++ openssl-3.0.0-alpha13/crypto/context.c 2021-03-16 00:15:55.129043811 +0100
4	@@ -12,11 +12,46 @@
5	#include "internal/provider.h"
6	#include "crypto/ctype.h"
7
8	+# include <sys/types.h>
9	+# include <sys/stat.h>
10	+# include <fcntl.h>
11	+# include <unistd.h>
12	+# include <openssl/evp.h>
13	+
14	struct ossl_lib_ctx_onfree_list_st {
15	ossl_lib_ctx_onfree_fn *fn;
16	struct ossl_lib_ctx_onfree_list_st *next;
17	};
18
19	+# define FIPS_MODE_SWITCH_FILE "/proc/sys/crypto/fips_enabled"
20	+
21	+static int kernel_fips_flag;
22	+
23	+static void read_kernel_fips_flag(void)
24	+{
25	+ char buf[2] = "0";
26	+ int fd;
27	+
28	+ if (ossl_safe_getenv("OPENSSL_FORCE_FIPS_MODE") != NULL) {
29	+ buf[0] = '1';
30	+ } else if ((fd = open(FIPS_MODE_SWITCH_FILE, O_RDONLY)) >= 0) {
31	+ while (read(fd, buf, sizeof(buf)) < 0 && errno == EINTR) ;
32	+ close(fd);
33	+ }
34	+
35	+ if (buf[0] == '1') {
36	+ kernel_fips_flag = 1;
37	+ }
38	+
39	+ return;
40	+}
41	+
42	+int ossl_get_kernel_fips_flag()
43	+{
44	+ return kernel_fips_flag;
45	+}
46	+
47	+
48	struct ossl_lib_ctx_st {
49	CRYPTO_RWLOCK *lock;
50	CRYPTO_EX_DATA data;
51	@@ -121,6 +170,7 @@ static CRYPTO_THREAD_LOCAL default_conte
52
53	DEFINE_RUN_ONCE_STATIC(default_context_do_init)
54	{
55	+ read_kernel_fips_flag();
56	return CRYPTO_THREAD_init_local(&default_context_thread_local, NULL)
57	&& context_init(&default_context_int);
58	}
59	diff -up openssl-3.0.1/include/internal/provider.h.embed-fips openssl-3.0.1/include/internal/provider.h
60	--- openssl-3.0.1/include/internal/provider.h.embed-fips 2022-01-11 13:13:08.323238760 +0100
61	+++ openssl-3.0.1/include/internal/provider.h 2022-01-11 13:13:43.522558909 +0100
62	@@ -110,6 +110,9 @@ int ossl_provider_init_as_child(OSSL_LIB
63	const OSSL_DISPATCH *in);
64	void ossl_provider_deinit_child(OSSL_LIB_CTX *ctx);
65
66	+/* FIPS flag access */
67	+int ossl_get_kernel_fips_flag(void);
68	+
69	# ifdef __cplusplus
70	}
71	# endif