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210c37e906
openssl/0033-FIPS-embed-hmac.patch
Dmitry Belyavskiy 5c4e10ac26 FIPS provider auto activation 
When FIPS flag is on, we load fips provider and set properties to fips.
FIPS checksum is embedded in FIPS provider itself
Related: rhbz#1985362
2021-11-23 15:01:33 +01:00

224 lines
8.5 KiB
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diff -up openssl-3.0.0/providers/fips/self_test.c.embed-hmac openssl-3.0.0/providers/fips/self_test.c
--- openssl-3.0.0/providers/fips/self_test.c.embed-hmac 2021-11-16 13:57:05.127171056 +0100
+++ openssl-3.0.0/providers/fips/self_test.c 2021-11-16 14:07:21.963412455 +0100
@@ -171,11 +171,27 @@ DEP_FINI_ATTRIBUTE void cleanup(void)
}
#endif
+#define HMAC_LEN 32
+/*
+ * The __attribute__ ensures we've created the .rodata1 section
+ * static ensures it's zero filled
+*/
+static const volatile 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,
@@ -183,14 +199,26 @@ static int verify_integrity(OSSL_CORE_BI
{
int ret = 0, status;
unsigned char out[MAX_MD_SIZE];
- unsigned char buf[INTEGRITY_BUF_SIZE];
+ unsigned char buf[INTEGRITY_BUF_SIZE+HMAC_LEN];
size_t bytes_read = 0, out_len = 0;
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;
+ int have_rest = 0;
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;
@@ -204,12 +233,53 @@ static int verify_integrity(OSSL_CORE_BI
if (!EVP_MAC_init(ctx, fixed_key, sizeof(fixed_key), params))
goto err;
+ status = read_ex_cb(bio, buf, HMAC_LEN, &bytes_read);
+ if (status != 1 || bytes_read != HMAC_LEN)
+ goto err;
+ off += HMAC_LEN;
+
while (1) {
- status = read_ex_cb(bio, buf, sizeof(buf), &bytes_read);
- if (status != 1)
+ status = read_ex_cb(bio, buf+HMAC_LEN, INTEGRITY_BUF_SIZE, &bytes_read);
+ if (status != 1) {
+ have_rest = 1;
+ break;
+ }
+
+ if (bytes_read == INTEGRITY_BUF_SIZE) { /* Full block */
+ /* Logic:
+ * We have HMAC_LEN (read before) + INTEGRITY_BUF_SIZE (read now) in buffer
+ * We calculate HMAC from first INTEGRITY_BUF_SIZE bytes
+ * and move last HMAC_LEN bytes to the beginning of the buffer
+ *
+ * If we have read (a part of) buffer fips_hmac_container
+ * we should replace it with zeros.
+ * If it is inside our current buffer, we will update now.
+ * If it intersects the upper bound, we will clean up on the next step.
+ */
+ if (off - HMAC_LEN <= paddr && paddr <= off + bytes_read)
+ memset (buf + HMAC_LEN + paddr - off, 0, HMAC_LEN);
+ off += bytes_read;
+
+ if (!EVP_MAC_update(ctx, buf, bytes_read))
+ goto err;
+ memcpy (buf, buf+INTEGRITY_BUF_SIZE, HMAC_LEN);
+ } else { /* Final block */
+ /* Logic is basically the same as in previous branch
+ * but we calculate HMAC from HMAC_LEN (rest of previous step)
+ * and bytes_read read on this step
+ * */
+ if (off - HMAC_LEN <= paddr && paddr <= off + bytes_read)
+ memset (buf + HMAC_LEN + paddr - off, 0, HMAC_LEN);
+ if (!EVP_MAC_update(ctx, buf, bytes_read+HMAC_LEN))
+ goto err;
+ off += bytes_read;
break;
- if (!EVP_MAC_update(ctx, buf, bytes_read))
+ }
+ }
+ if (have_rest) {
+ if (!EVP_MAC_update(ctx, buf, HMAC_LEN))
goto err;
+ off += HMAC_LEN;
}
if (!EVP_MAC_final(ctx, out, &out_len, sizeof(out)))
goto err;
@@ -284,8 +358,7 @@ int SELF_TEST_post(SELF_TEST_POST_PARAMS
CRYPTO_THREAD_unlock(fips_state_lock);
}
- if (st == NULL
- || st->module_checksum_data == NULL) {
+ if (st == NULL) {
ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_CONFIG_DATA);
goto end;
}
@@ -294,8 +367,9 @@ int SELF_TEST_post(SELF_TEST_POST_PARAMS
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;
@@ -357,7 +431,6 @@ int SELF_TEST_post(SELF_TEST_POST_PARAMS
ok = 1;
end:
OSSL_SELF_TEST_free(ev);
- OPENSSL_free(module_checksum);
OPENSSL_free(indicator_checksum);
if (st != NULL) {
diff -ruN openssl-3.0.0/test/recipes/00-prep_fipsmodule_cnf.t openssl-3.0.0-xxx/test/recipes/00-prep_fipsmodule_cnf.t
--- openssl-3.0.0/test/recipes/00-prep_fipsmodule_cnf.t 2021-09-07 13:46:32.000000000 +0200
+++ openssl-3.0.0-xxx/test/recipes/00-prep_fipsmodule_cnf.t 2021-11-18 09:39:53.386817874 +0100
@@ -20,7 +20,7 @@
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 -ruN openssl-3.0.0/test/recipes/01-test_fipsmodule_cnf.t openssl-3.0.0-xxx/test/recipes/01-test_fipsmodule_cnf.t
--- openssl-3.0.0/test/recipes/01-test_fipsmodule_cnf.t 2021-09-07 13:46:32.000000000 +0200
+++ openssl-3.0.0-xxx/test/recipes/01-test_fipsmodule_cnf.t 2021-11-18 09:59:02.315619486 +0100
@@ -23,7 +23,7 @@
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 -ruN openssl-3.0.0/test/recipes/03-test_fipsinstall.t openssl-3.0.0-xxx/test/recipes/03-test_fipsinstall.t
--- openssl-3.0.0/test/recipes/03-test_fipsinstall.t 2021-09-07 13:46:32.000000000 +0200
+++ openssl-3.0.0-xxx/test/recipes/03-test_fipsinstall.t 2021-11-18 09:59:55.365072074 +0100
@@ -22,7 +22,7 @@
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;
plan tests => 29;
diff -ruN openssl-3.0.0/test/recipes/30-test_defltfips.t openssl-3.0.0-xxx/test/recipes/30-test_defltfips.t
--- openssl-3.0.0/test/recipes/30-test_defltfips.t 2021-09-07 13:46:32.000000000 +0200
+++ openssl-3.0.0-xxx/test/recipes/30-test_defltfips.t 2021-11-18 10:22:54.179659682 +0100
@@ -21,7 +21,7 @@
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);
plan tests =>
($no_fips ? 1 : 5);
diff -ruN openssl-3.0.0/test/recipes/80-test_ssl_new.t openssl-3.0.0-xxx/test/recipes/80-test_ssl_new.t
--- openssl-3.0.0/test/recipes/80-test_ssl_new.t 2021-09-07 13:46:32.000000000 +0200
+++ openssl-3.0.0-xxx/test/recipes/80-test_ssl_new.t 2021-11-18 10:18:53.391721164 +0100
@@ -23,7 +23,7 @@
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 -ruN openssl-3.0.0/test/recipes/90-test_sslapi.t openssl-3.0.0-xxx/test/recipes/90-test_sslapi.t
--- openssl-3.0.0/test/recipes/90-test_sslapi.t 2021-11-18 10:32:17.734196705 +0100
+++ openssl-3.0.0-xxx/test/recipes/90-test_sslapi.t 2021-11-18 10:18:30.695538445 +0100
@@ -18,7 +18,7 @@
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);
plan skip_all => "No TLS/SSL protocols are supported by this OpenSSL build"
if alldisabled(grep { $_ ne "ssl3" } available_protocols("tls"));
--- /dev/null 2021-11-16 15:27:32.915000000 +0100
+++ openssl-3.0.0/test/fipsmodule.cnf 2021-11-18 11:15:34.538060408 +0100
@@ -0,0 +1,2 @@
+[fips_sect]
+activate = 1
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