openssl-3/openssl-FIPS-embed-hmac.patch

From e364a858262c8f563954544cc81e66f1b3b8db8c Mon Sep 17 00:00:00 2001
From: rpm-build <rpm-build>
Date: Thu, 19 Oct 2023 13:12:40 +0200
Subject: [PATCH 16/46] 0033-FIPS-embed-hmac.patch

Patch-name: 0033-FIPS-embed-hmac.patch
Patch-id: 33
Patch-status: |
    # # Embed HMAC into the fips.so
From-dist-git-commit: 5c67b5adc311af297f425c09e3e1ac7ca8483911
---
 providers/fips/self_test.c            | 70 ++++++++++++++++++++++++---
 test/fipsmodule.cnf                   |  2 +
 test/recipes/00-prep_fipsmodule_cnf.t |  2 +-
 test/recipes/01-test_fipsmodule_cnf.t |  2 +-
 test/recipes/03-test_fipsinstall.t    |  2 +-
 test/recipes/30-test_defltfips.t      |  2 +-
 test/recipes/80-test_ssl_new.t        |  2 +-
 test/recipes/90-test_sslapi.t         |  2 +-
 8 files changed, 71 insertions(+), 13 deletions(-)
 create mode 100644 test/fipsmodule.cnf

diff --git a/providers/fips/self_test.c b/providers/fips/self_test.c
index b8dc9817b2..e3a629018a 100644
--- a/providers/fips/self_test.c
+++ b/providers/fips/self_test.c
@@ -230,11 +230,27 @@ err:
     return ok;
 }
 
+#define HMAC_LEN 32
+/*
+ * The __attribute__ ensures we've created the .rodata1 section
+ * static ensures it's zero filled
+*/
+static const unsigned char __attribute__ ((section (".rodata1"))) fips_hmac_container[HMAC_LEN] = {0};
+
 /*
  * Calculate the HMAC SHA256 of data read using a BIO and read_cb, and verify
  * the result matches the expected value.
  * Return 1 if verified, or 0 if it fails.
  */
+#ifndef __USE_GNU
+#define __USE_GNU
+#include <dlfcn.h>
+#undef __USE_GNU
+#else
+#include <dlfcn.h>
+#endif
+#include <link.h>
+
 static int verify_integrity(OSSL_CORE_BIO *bio, OSSL_FUNC_BIO_read_ex_fn read_ex_cb,
                             unsigned char *expected, size_t expected_len,
                             OSSL_LIB_CTX *libctx, OSSL_SELF_TEST *ev,
@@ -247,12 +263,23 @@ static int verify_integrity(OSSL_CORE_BIO *bio, OSSL_FUNC_BIO_read_ex_fn read_ex
     EVP_MAC *mac = NULL;
     EVP_MAC_CTX *ctx = NULL;
     OSSL_PARAM params[2], *p = params;
+    Dl_info info;
+    void *extra_info = NULL;
+    struct link_map *lm = NULL;
+    unsigned long paddr;
+    unsigned long off = 0;
 
     if (!integrity_self_test(ev, libctx))
         goto err;
 
     OSSL_SELF_TEST_onbegin(ev, event_type, OSSL_SELF_TEST_DESC_INTEGRITY_HMAC);
 
+    if (!dladdr1 ((const void *)fips_hmac_container,
+                &info, &extra_info, RTLD_DL_LINKMAP))
+        goto err;
+    lm = extra_info;
+    paddr = (unsigned long)fips_hmac_container - lm->l_addr;
+
     mac = EVP_MAC_fetch(libctx, MAC_NAME, NULL);
     if (mac == NULL)
         goto err;
@@ -266,13 +293,42 @@ static int verify_integrity(OSSL_CORE_BIO *bio, OSSL_FUNC_BIO_read_ex_fn read_ex
     if (!EVP_MAC_init(ctx, fixed_key, sizeof(fixed_key), params))
         goto err;
 
-    while (1) {
-        status = read_ex_cb(bio, buf, sizeof(buf), &bytes_read);
+    while ((off + INTEGRITY_BUF_SIZE) <= paddr) {
+        status = read_ex_cb(bio, buf, INTEGRITY_BUF_SIZE, &bytes_read);
+        if (status != 1)
+            break;
+        if (!EVP_MAC_update(ctx, buf, bytes_read))
+            goto err;
+	off += bytes_read;
+    }
+
+    if (off + INTEGRITY_BUF_SIZE > paddr) {
+        int delta = paddr - off;
+        status = read_ex_cb(bio, buf, delta, &bytes_read);
+        if (status != 1)
+            goto err;
+        if (!EVP_MAC_update(ctx, buf, bytes_read))
+            goto err;
+	off += bytes_read;
+
+        status = read_ex_cb(bio, buf, HMAC_LEN, &bytes_read);
+        memset(buf, 0, HMAC_LEN);
+        if (status != 1)
+            goto err;
+        if (!EVP_MAC_update(ctx, buf, bytes_read))
+            goto err;
+	off += bytes_read;
+    }
+
+    while (bytes_read > 0) {
+        status = read_ex_cb(bio, buf, INTEGRITY_BUF_SIZE, &bytes_read);
         if (status != 1)
             break;
         if (!EVP_MAC_update(ctx, buf, bytes_read))
             goto err;
+	off += bytes_read;
     }
+
     if (!EVP_MAC_final(ctx, out, &out_len, sizeof(out)))
         goto err;
 
@@ -282,6 +338,7 @@ static int verify_integrity(OSSL_CORE_BIO *bio, OSSL_FUNC_BIO_read_ex_fn read_ex
         goto err;
     ret = 1;
 err:
+    OPENSSL_cleanse(out, sizeof(out));
     OSSL_SELF_TEST_onend(ev, ret);
     EVP_MAC_CTX_free(ctx);
     EVP_MAC_free(mac);
@@ -335,8 +392,7 @@ int SELF_TEST_post(SELF_TEST_POST_PARAMS *st, int on_demand_test)
         return 0;
     }
 
-    if (st == NULL
-            || st->module_checksum_data == NULL) {
+    if (st == NULL) {
         ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_CONFIG_DATA);
         goto end;
     }
@@ -345,8 +401,9 @@ int SELF_TEST_post(SELF_TEST_POST_PARAMS *st, int on_demand_test)
     if (ev == NULL)
         goto end;
 
-    module_checksum = OPENSSL_hexstr2buf(st->module_checksum_data,
-                                         &checksum_len);
+    module_checksum = fips_hmac_container;
+    checksum_len = sizeof(fips_hmac_container);
+
     if (module_checksum == NULL) {
         ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CONFIG_DATA);
         goto end;
@@ -420,7 +477,6 @@ int SELF_TEST_post(SELF_TEST_POST_PARAMS *st, int on_demand_test)
 end:
     EVP_RAND_free(testrand);
     OSSL_SELF_TEST_free(ev);
-    OPENSSL_free(module_checksum);
     OPENSSL_free(indicator_checksum);
 
     if (st != NULL) {
diff --git a/test/fipsmodule.cnf b/test/fipsmodule.cnf
new file mode 100644
index 0000000000..f05d0dedbe
--- /dev/null
+++ b/test/fipsmodule.cnf
@@ -0,0 +1,2 @@
+[fips_sect]
+activate = 1
diff --git a/test/recipes/00-prep_fipsmodule_cnf.t b/test/recipes/00-prep_fipsmodule_cnf.t
index 4e3a6d85e8..e8255ba974 100644
--- a/test/recipes/00-prep_fipsmodule_cnf.t
+++ b/test/recipes/00-prep_fipsmodule_cnf.t
@@ -20,7 +20,7 @@ use lib srctop_dir('Configurations');
 use lib bldtop_dir('.');
 use platform;
 
-my $no_check = disabled("fips");
+my $no_check = 1;
 plan skip_all => "FIPS module config file only supported in a fips build"
     if $no_check;
 
diff --git a/test/recipes/01-test_fipsmodule_cnf.t b/test/recipes/01-test_fipsmodule_cnf.t
index ce594817d5..00cebacff8 100644
--- a/test/recipes/01-test_fipsmodule_cnf.t
+++ b/test/recipes/01-test_fipsmodule_cnf.t
@@ -23,7 +23,7 @@ use lib srctop_dir('Configurations');
 use lib bldtop_dir('.');
 use platform;
 
-my $no_check = disabled("fips");
+my $no_check = 1;
 plan skip_all => "Test only supported in a fips build"
     if $no_check;
 plan tests => 1;
diff --git a/test/recipes/03-test_fipsinstall.t b/test/recipes/03-test_fipsinstall.t
index b8b136d110..8242f4ebc3 100644
--- a/test/recipes/03-test_fipsinstall.t
+++ b/test/recipes/03-test_fipsinstall.t
@@ -22,7 +22,7 @@ use lib srctop_dir('Configurations');
 use lib bldtop_dir('.');
 use platform;
 
-plan skip_all => "Test only supported in a fips build" if disabled("fips");
+plan skip_all => "Test only supported in a fips build" if 1;
 
 # Compatible options for pedantic FIPS compliance
 my @pedantic_okay =
diff --git a/test/recipes/30-test_defltfips.t b/test/recipes/30-test_defltfips.t
index c8f145405b..56a2ec5dc4 100644
--- a/test/recipes/30-test_defltfips.t
+++ b/test/recipes/30-test_defltfips.t
@@ -24,7 +24,7 @@ use lib bldtop_dir('.');
 plan skip_all => "Configuration loading is turned off"
     if disabled("autoload-config");
 
-my $no_fips = disabled('fips') || ($ENV{NO_FIPS} // 0);
+my $no_fips = 1; #disabled('fips') || ($ENV{NO_FIPS} // 0);
 
 plan tests =>
     ($no_fips ? 1 : 5);
diff --git a/test/recipes/80-test_ssl_new.t b/test/recipes/80-test_ssl_new.t
index 0c6d6402d9..e45f9cb560 100644
--- a/test/recipes/80-test_ssl_new.t
+++ b/test/recipes/80-test_ssl_new.t
@@ -27,7 +27,7 @@ setup("test_ssl_new");
 use lib srctop_dir('Configurations');
 use lib bldtop_dir('.');
 
-my $no_fips = disabled('fips') || ($ENV{NO_FIPS} // 0);
+my $no_fips = 1; #disabled('fips') || ($ENV{NO_FIPS} // 0);
 
 $ENV{TEST_CERTS_DIR} = srctop_dir("test", "certs");
 
diff --git a/test/recipes/90-test_sslapi.t b/test/recipes/90-test_sslapi.t
index 9e9e32b51e..1a1a7159b5 100644
--- a/test/recipes/90-test_sslapi.t
+++ b/test/recipes/90-test_sslapi.t
@@ -17,7 +17,7 @@ setup("test_sslapi");
 use lib srctop_dir('Configurations');
 use lib bldtop_dir('.');
 
-my $no_fips = disabled('fips') || ($ENV{NO_FIPS} // 0);
+my $no_fips = 1; #disabled('fips') || ($ENV{NO_FIPS} // 0);
 my $fipsmodcfg_filename = "fipsmodule.cnf";
 my $fipsmodcfg = bldtop_file("test", $fipsmodcfg_filename);
 
-- 
2.41.0