835 lines
24 KiB
Diff
835 lines
24 KiB
Diff
|
From c5cc0bb6f2d6e468c7402915a0a4e6799f0febdf Mon Sep 17 00:00:00 2001
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||
|
From: Colin Walters <walters@verbum.org>
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Date: Fri, 7 Jun 2019 18:44:43 +0000
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Subject: [PATCH 1/3] ghmac: Split off wrapper functions into ghmac-utils.c
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|
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Prep for adding a GnuTLS HMAC implementation; these are just
|
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|
utility functions that call the "core" API.
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|
---
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|
glib/Makefile.am | 1 +
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|
glib/ghmac-utils.c | 145 +++++++++++++++++++++++++++++++++++++++++++++
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glib/ghmac.c | 112 ----------------------------------
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glib/meson.build | 1 +
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|
4 files changed, 147 insertions(+), 112 deletions(-)
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create mode 100644 glib/ghmac-utils.c
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|
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|
diff --git a/glib/Makefile.am b/glib/Makefile.am
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index c0c3b92f0..43fa17051 100644
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|
--- a/glib/Makefile.am
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|
+++ b/glib/Makefile.am
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|
@@ -126,6 +126,7 @@ libglib_2_0_la_SOURCES = \
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|
ggettext.c \
|
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|
ghash.c \
|
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|
ghmac.c \
|
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|
+ ghmac-utils.c \
|
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|
ghook.c \
|
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|
ghostutils.c \
|
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|
giochannel.c \
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|
diff --git a/glib/ghmac-utils.c b/glib/ghmac-utils.c
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new file mode 100644
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index 000000000..a17359ff1
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--- /dev/null
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+++ b/glib/ghmac-utils.c
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@@ -0,0 +1,145 @@
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+/* ghmac.h - data hashing functions
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|
+ *
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|
+ * Copyright (C) 2011 Collabora Ltd.
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+ * Copyright (C) 2019 Red Hat, Inc.
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+ *
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+ * This library is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU Lesser General Public
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|
+ * License as published by the Free Software Foundation; either
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+ * version 2.1 of the License, or (at your option) any later version.
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+ *
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+ * This library is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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+ * Lesser General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU Lesser General Public License
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+ * along with this library; if not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+#include "config.h"
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+
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+#include <string.h>
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+
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+#include "ghmac.h"
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+
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+#include "glib/galloca.h"
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+#include "gatomic.h"
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+#include "gslice.h"
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+#include "gmem.h"
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+#include "gstrfuncs.h"
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+#include "gtestutils.h"
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+#include "gtypes.h"
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+#include "glibintl.h"
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+
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+/**
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+ * g_compute_hmac_for_data:
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+ * @digest_type: a #GChecksumType to use for the HMAC
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+ * @key: (array length=key_len): the key to use in the HMAC
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+ * @key_len: the length of the key
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+ * @data: (array length=length): binary blob to compute the HMAC of
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+ * @length: length of @data
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|
+ *
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|
+ * Computes the HMAC for a binary @data of @length. This is a
|
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+ * convenience wrapper for g_hmac_new(), g_hmac_get_string()
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+ * and g_hmac_unref().
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|
+ *
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+ * The hexadecimal string returned will be in lower case.
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+ *
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+ * Returns: the HMAC of the binary data as a string in hexadecimal.
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+ * The returned string should be freed with g_free() when done using it.
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+ *
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+ * Since: 2.30
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+ */
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+gchar *
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+g_compute_hmac_for_data (GChecksumType digest_type,
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+ const guchar *key,
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+ gsize key_len,
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+ const guchar *data,
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+ gsize length)
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+{
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+ GHmac *hmac;
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+ gchar *retval;
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+
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+ g_return_val_if_fail (length == 0 || data != NULL, NULL);
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+
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+ hmac = g_hmac_new (digest_type, key, key_len);
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|
+ if (!hmac)
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+ return NULL;
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|
+
|
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+ g_hmac_update (hmac, data, length);
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+ retval = g_strdup (g_hmac_get_string (hmac));
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+ g_hmac_unref (hmac);
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+
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+ return retval;
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|
+}
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+
|
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|
+/**
|
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|
+ * g_compute_hmac_for_bytes:
|
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|
+ * @digest_type: a #GChecksumType to use for the HMAC
|
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|
+ * @key: the key to use in the HMAC
|
||
|
+ * @data: binary blob to compute the HMAC of
|
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|
+ *
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|
+ * Computes the HMAC for a binary @data. This is a
|
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|
+ * convenience wrapper for g_hmac_new(), g_hmac_get_string()
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|
+ * and g_hmac_unref().
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|
+ *
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|
+ * The hexadecimal string returned will be in lower case.
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|
+ *
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|
+ * Returns: the HMAC of the binary data as a string in hexadecimal.
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+ * The returned string should be freed with g_free() when done using it.
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+ *
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+ * Since: 2.50
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+ */
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+gchar *
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+g_compute_hmac_for_bytes (GChecksumType digest_type,
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+ GBytes *key,
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+ GBytes *data)
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+{
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+ gconstpointer byte_data;
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+ gsize length;
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+ gconstpointer key_data;
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+ gsize key_len;
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+
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+ g_return_val_if_fail (data != NULL, NULL);
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+ g_return_val_if_fail (key != NULL, NULL);
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+
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+ byte_data = g_bytes_get_data (data, &length);
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+ key_data = g_bytes_get_data (key, &key_len);
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+ return g_compute_hmac_for_data (digest_type, key_data, key_len, byte_data, length);
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+}
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+
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+
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+/**
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+ * g_compute_hmac_for_string:
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+ * @digest_type: a #GChecksumType to use for the HMAC
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+ * @key: (array length=key_len): the key to use in the HMAC
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+ * @key_len: the length of the key
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+ * @str: the string to compute the HMAC for
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+ * @length: the length of the string, or -1 if the string is nul-terminated
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+ *
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+ * Computes the HMAC for a string.
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+ *
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+ * The hexadecimal string returned will be in lower case.
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+ *
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+ * Returns: the HMAC as a hexadecimal string.
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+ * The returned string should be freed with g_free()
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+ * when done using it.
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+ *
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+ * Since: 2.30
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+ */
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+gchar *
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+g_compute_hmac_for_string (GChecksumType digest_type,
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+ const guchar *key,
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+ gsize key_len,
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+ const gchar *str,
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+ gssize length)
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+{
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+ g_return_val_if_fail (length == 0 || str != NULL, NULL);
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+
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+ if (length < 0)
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+ length = strlen (str);
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+
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+ return g_compute_hmac_for_data (digest_type, key, key_len,
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+ (const guchar *) str, length);
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+}
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diff --git a/glib/ghmac.c b/glib/ghmac.c
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index 9b58fd81c..7db38e34a 100644
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--- a/glib/ghmac.c
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+++ b/glib/ghmac.c
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@@ -329,115 +329,3 @@ g_hmac_get_digest (GHmac *hmac,
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g_checksum_update (hmac->digesto, buffer, len);
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g_checksum_get_digest (hmac->digesto, buffer, digest_len);
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}
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-
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-/**
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- * g_compute_hmac_for_data:
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- * @digest_type: a #GChecksumType to use for the HMAC
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- * @key: (array length=key_len): the key to use in the HMAC
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|
- * @key_len: the length of the key
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|
- * @data: (array length=length): binary blob to compute the HMAC of
|
||
|
- * @length: length of @data
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||
|
- *
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||
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- * Computes the HMAC for a binary @data of @length. This is a
|
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|
- * convenience wrapper for g_hmac_new(), g_hmac_get_string()
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|
- * and g_hmac_unref().
|
||
|
- *
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- * The hexadecimal string returned will be in lower case.
|
||
|
- *
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- * Returns: the HMAC of the binary data as a string in hexadecimal.
|
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|
- * The returned string should be freed with g_free() when done using it.
|
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|
- *
|
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|
- * Since: 2.30
|
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|
- */
|
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|
-gchar *
|
||
|
-g_compute_hmac_for_data (GChecksumType digest_type,
|
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|
- const guchar *key,
|
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|
- gsize key_len,
|
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|
- const guchar *data,
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|
- gsize length)
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-{
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- GHmac *hmac;
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- gchar *retval;
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-
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- g_return_val_if_fail (length == 0 || data != NULL, NULL);
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-
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- hmac = g_hmac_new (digest_type, key, key_len);
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- if (!hmac)
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- return NULL;
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|
-
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- g_hmac_update (hmac, data, length);
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- retval = g_strdup (g_hmac_get_string (hmac));
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- g_hmac_unref (hmac);
|
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|
-
|
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- return retval;
|
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|
-}
|
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|
-
|
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|
-/**
|
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|
- * g_compute_hmac_for_bytes:
|
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|
- * @digest_type: a #GChecksumType to use for the HMAC
|
||
|
- * @key: the key to use in the HMAC
|
||
|
- * @data: binary blob to compute the HMAC of
|
||
|
- *
|
||
|
- * Computes the HMAC for a binary @data. This is a
|
||
|
- * convenience wrapper for g_hmac_new(), g_hmac_get_string()
|
||
|
- * and g_hmac_unref().
|
||
|
- *
|
||
|
- * The hexadecimal string returned will be in lower case.
|
||
|
- *
|
||
|
- * Returns: the HMAC of the binary data as a string in hexadecimal.
|
||
|
- * The returned string should be freed with g_free() when done using it.
|
||
|
- *
|
||
|
- * Since: 2.50
|
||
|
- */
|
||
|
-gchar *
|
||
|
-g_compute_hmac_for_bytes (GChecksumType digest_type,
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|
- GBytes *key,
|
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|
- GBytes *data)
|
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|
-{
|
||
|
- gconstpointer byte_data;
|
||
|
- gsize length;
|
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|
- gconstpointer key_data;
|
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|
- gsize key_len;
|
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|
-
|
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- g_return_val_if_fail (data != NULL, NULL);
|
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- g_return_val_if_fail (key != NULL, NULL);
|
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|
-
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- byte_data = g_bytes_get_data (data, &length);
|
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|
- key_data = g_bytes_get_data (key, &key_len);
|
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|
- return g_compute_hmac_for_data (digest_type, key_data, key_len, byte_data, length);
|
||
|
-}
|
||
|
-
|
||
|
-
|
||
|
-/**
|
||
|
- * g_compute_hmac_for_string:
|
||
|
- * @digest_type: a #GChecksumType to use for the HMAC
|
||
|
- * @key: (array length=key_len): the key to use in the HMAC
|
||
|
- * @key_len: the length of the key
|
||
|
- * @str: the string to compute the HMAC for
|
||
|
- * @length: the length of the string, or -1 if the string is nul-terminated
|
||
|
- *
|
||
|
- * Computes the HMAC for a string.
|
||
|
- *
|
||
|
- * The hexadecimal string returned will be in lower case.
|
||
|
- *
|
||
|
- * Returns: the HMAC as a hexadecimal string.
|
||
|
- * The returned string should be freed with g_free()
|
||
|
- * when done using it.
|
||
|
- *
|
||
|
- * Since: 2.30
|
||
|
- */
|
||
|
-gchar *
|
||
|
-g_compute_hmac_for_string (GChecksumType digest_type,
|
||
|
- const guchar *key,
|
||
|
- gsize key_len,
|
||
|
- const gchar *str,
|
||
|
- gssize length)
|
||
|
-{
|
||
|
- g_return_val_if_fail (length == 0 || str != NULL, NULL);
|
||
|
-
|
||
|
- if (length < 0)
|
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|
- length = strlen (str);
|
||
|
-
|
||
|
- return g_compute_hmac_for_data (digest_type, key, key_len,
|
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|
- (const guchar *) str, length);
|
||
|
-}
|
||
|
diff --git a/glib/meson.build b/glib/meson.build
|
||
|
index c81e99f9c..306a67f13 100644
|
||
|
--- a/glib/meson.build
|
||
|
+++ b/glib/meson.build
|
||
|
@@ -138,6 +138,7 @@ glib_sources = files(
|
||
|
'ggettext.c',
|
||
|
'ghash.c',
|
||
|
'ghmac.c',
|
||
|
+ 'ghmac-utils.c',
|
||
|
'ghook.c',
|
||
|
'ghostutils.c',
|
||
|
'giochannel.c',
|
||
|
--
|
||
|
2.31.1
|
||
|
|
||
|
From 3befcf1eb31e0fa7a988b22a9c24240218cd4744 Mon Sep 17 00:00:00 2001
|
||
|
From: Colin Walters <walters@verbum.org>
|
||
|
Date: Fri, 7 Jun 2019 19:36:54 +0000
|
||
|
Subject: [PATCH 2/3] Add a gnutls backend for GHmac
|
||
|
|
||
|
For RHEL we want apps to use FIPS-certified crypto libraries,
|
||
|
and HMAC apparently counts as "keyed" and hence needs to
|
||
|
be validated.
|
||
|
|
||
|
Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1630260
|
||
|
Replaces: https://gitlab.gnome.org/GNOME/glib/merge_requests/897
|
||
|
|
||
|
This is a build-time option that backs the GHmac API with GnuTLS.
|
||
|
Most distributors ship glib-networking built with GnuTLS, and
|
||
|
most apps use glib-networking, so this isn't a net-new library
|
||
|
in most cases.
|
||
|
|
||
|
=======================================================================
|
||
|
|
||
|
mcatanzaro note:
|
||
|
|
||
|
I've updated Colin's original patch with several enhancements:
|
||
|
|
||
|
Implement g_hmac_copy() using gnutls_hmac_copy(), which didn't exist
|
||
|
when Colin developed this patch.
|
||
|
|
||
|
Removed use of GSlice
|
||
|
|
||
|
Better error checking in g_hmac_new(). It is possible for
|
||
|
gnutls_hmac_init() to fail if running in FIPS mode and an MD5 digest is
|
||
|
requested. In this case, we should return NULL rather than returning a
|
||
|
broken GHmac with a NULL gnutls_hmac_hd_t. This was leading to a later
|
||
|
null pointer dereference inside gnutls_hmac_update(). Applications are
|
||
|
responsible for checking to ensure the return value of g_hmac_new() is
|
||
|
not NULL since it is annotated as nullable. Added documentation to
|
||
|
indicate this possibility.
|
||
|
|
||
|
Properly handle length -1 in g_hmac_update(). This means we've been
|
||
|
given a NUL-terminated string and should use strlen(). GnuTLS doesn't
|
||
|
accept -1, so let's call strlen() ourselves.
|
||
|
|
||
|
Crash the application with g_error() if gnutls_hmac() fails for any
|
||
|
reason. This is necessary because g_hmac_update() is not fallible, so we
|
||
|
have no way to indicate error. Crashing seems better than returning the
|
||
|
wrong result later when g_hmac_get_string() or g_hmac_get_digest() is
|
||
|
later called. (Those functions are also not fallible.) Fortunately, I
|
||
|
don't think this error should actually be hit in practice.
|
||
|
|
||
|
https://gitlab.gnome.org/GNOME/glib/-/merge_requests/903
|
||
|
---
|
||
|
glib/Makefile.am | 8 +-
|
||
|
glib/gchecksum.c | 9 +-
|
||
|
glib/gchecksumprivate.h | 32 +++++++
|
||
|
glib/ghmac-gnutls.c | 182 ++++++++++++++++++++++++++++++++++++++++
|
||
|
glib/ghmac.c | 13 +++
|
||
|
glib/meson.build | 10 ++-
|
||
|
meson.build | 7 ++
|
||
|
meson_options.txt | 5 ++
|
||
|
8 files changed, 258 insertions(+), 8 deletions(-)
|
||
|
create mode 100644 glib/gchecksumprivate.h
|
||
|
create mode 100644 glib/ghmac-gnutls.c
|
||
|
|
||
|
diff --git a/glib/Makefile.am b/glib/Makefile.am
|
||
|
index 43fa17051..1175bbe40 100644
|
||
|
--- a/glib/Makefile.am
|
||
|
+++ b/glib/Makefile.am
|
||
|
@@ -125,7 +125,7 @@ libglib_2_0_la_SOURCES = \
|
||
|
gfileutils.c \
|
||
|
ggettext.c \
|
||
|
ghash.c \
|
||
|
- ghmac.c \
|
||
|
+ ghmac-gnutls.c \
|
||
|
ghmac-utils.c \
|
||
|
ghook.c \
|
||
|
ghostutils.c \
|
||
|
@@ -352,11 +352,15 @@ pcre_lib = pcre/libpcre.la
|
||
|
pcre_inc =
|
||
|
endif
|
||
|
|
||
|
-libglib_2_0_la_CFLAGS = $(AM_CFLAGS) $(GLIB_HIDDEN_VISIBILITY_CFLAGS) $(LIBSYSTEMD_CFLAGS)
|
||
|
+gnutls_libs = $(shell pkg-config --libs gnutls)
|
||
|
+gnutls_cflags = $(shell pkg-config --cflags gnutls)
|
||
|
+
|
||
|
+libglib_2_0_la_CFLAGS = $(AM_CFLAGS) $(GLIB_HIDDEN_VISIBILITY_CFLAGS) $(LIBSYSTEMD_CFLAGS) $(gnutls_cflags)
|
||
|
libglib_2_0_la_LIBADD = libcharset/libcharset.la $(printf_la) @GIO@ @GSPAWN@ @PLATFORMDEP@ @ICONV_LIBS@ @G_LIBS_EXTRA@ $(pcre_lib) $(G_THREAD_LIBS_EXTRA) $(G_THREAD_LIBS_FOR_GTHREAD) $(LIBSYSTEMD_LIBS)
|
||
|
libglib_2_0_la_DEPENDENCIES = libcharset/libcharset.la $(printf_la) @GIO@ @GSPAWN@ @PLATFORMDEP@ $(glib_win32_res) $(glib_def)
|
||
|
|
||
|
libglib_2_0_la_LDFLAGS = $(GLIB_LINK_FLAGS) \
|
||
|
+ $(gnutls_libs) \
|
||
|
$(glib_win32_res_ldflag) \
|
||
|
-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE) \
|
||
|
-export-dynamic $(no_undefined)
|
||
|
diff --git a/glib/gchecksum.c b/glib/gchecksum.c
|
||
|
index 40b1d50e2..2f59d4a66 100644
|
||
|
--- a/glib/gchecksum.c
|
||
|
+++ b/glib/gchecksum.c
|
||
|
@@ -20,7 +20,7 @@
|
||
|
|
||
|
#include <string.h>
|
||
|
|
||
|
-#include "gchecksum.h"
|
||
|
+#include "gchecksumprivate.h"
|
||
|
|
||
|
#include "gslice.h"
|
||
|
#include "gmem.h"
|
||
|
@@ -173,9 +173,9 @@ sha_byte_reverse (guint32 *buffer,
|
||
|
}
|
||
|
#endif /* G_BYTE_ORDER == G_BIG_ENDIAN */
|
||
|
|
||
|
-static gchar *
|
||
|
-digest_to_string (guint8 *digest,
|
||
|
- gsize digest_len)
|
||
|
+gchar *
|
||
|
+gchecksum_digest_to_string (guint8 *digest,
|
||
|
+ gsize digest_len)
|
||
|
{
|
||
|
gint len = digest_len * 2;
|
||
|
gint i;
|
||
|
@@ -195,6 +195,7 @@ digest_to_string (guint8 *digest,
|
||
|
|
||
|
return retval;
|
||
|
}
|
||
|
+#define digest_to_string gchecksum_digest_to_string
|
||
|
|
||
|
/*
|
||
|
* MD5 Checksum
|
||
|
diff --git a/glib/gchecksumprivate.h b/glib/gchecksumprivate.h
|
||
|
new file mode 100644
|
||
|
index 000000000..86c7a3b61
|
||
|
--- /dev/null
|
||
|
+++ b/glib/gchecksumprivate.h
|
||
|
@@ -0,0 +1,32 @@
|
||
|
+/* gstdioprivate.h - Private GLib stdio functions
|
||
|
+ *
|
||
|
+ * Copyright 2017 Руслан Ижбулатов
|
||
|
+ *
|
||
|
+ * This library is free software; you can redistribute it and/or
|
||
|
+ * modify it under the terms of the GNU Lesser General Public
|
||
|
+ * License as published by the Free Software Foundation; either
|
||
|
+ * version 2.1 of the License, or (at your option) any later version.
|
||
|
+ *
|
||
|
+ * This library is distributed in the hope that it will be useful,
|
||
|
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
+ * Lesser General Public License for more details.
|
||
|
+ *
|
||
|
+ * You should have received a copy of the GNU Lesser General Public License
|
||
|
+ * along with this library; if not, see <http://www.gnu.org/licenses/>.
|
||
|
+ */
|
||
|
+
|
||
|
+#ifndef __G_CHECKSUMPRIVATE_H__
|
||
|
+#define __G_CHECKSUMPRIVATE_H__
|
||
|
+
|
||
|
+#include "gchecksum.h"
|
||
|
+
|
||
|
+G_BEGIN_DECLS
|
||
|
+
|
||
|
+gchar *
|
||
|
+gchecksum_digest_to_string (guint8 *digest,
|
||
|
+ gsize digest_len);
|
||
|
+
|
||
|
+G_END_DECLS
|
||
|
+
|
||
|
+#endif
|
||
|
\ No newline at end of file
|
||
|
diff --git a/glib/ghmac-gnutls.c b/glib/ghmac-gnutls.c
|
||
|
new file mode 100644
|
||
|
index 000000000..522b9b302
|
||
|
--- /dev/null
|
||
|
+++ b/glib/ghmac-gnutls.c
|
||
|
@@ -0,0 +1,182 @@
|
||
|
+/* ghmac.h - data hashing functions
|
||
|
+ *
|
||
|
+ * Copyright (C) 2011 Collabora Ltd.
|
||
|
+ * Copyright (C) 2019 Red Hat, Inc.
|
||
|
+ *
|
||
|
+ * This library is free software; you can redistribute it and/or
|
||
|
+ * modify it under the terms of the GNU Lesser General Public
|
||
|
+ * License as published by the Free Software Foundation; either
|
||
|
+ * version 2.1 of the License, or (at your option) any later version.
|
||
|
+ *
|
||
|
+ * This library is distributed in the hope that it will be useful,
|
||
|
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
+ * Lesser General Public License for more details.
|
||
|
+ *
|
||
|
+ * You should have received a copy of the GNU Lesser General Public License
|
||
|
+ * along with this library; if not, see <http://www.gnu.org/licenses/>.
|
||
|
+ */
|
||
|
+
|
||
|
+#include "config.h"
|
||
|
+
|
||
|
+#include <string.h>
|
||
|
+#include <gnutls/crypto.h>
|
||
|
+
|
||
|
+#include "ghmac.h"
|
||
|
+
|
||
|
+#include "glib/galloca.h"
|
||
|
+#include "gatomic.h"
|
||
|
+#include "gslice.h"
|
||
|
+#include "gmem.h"
|
||
|
+#include "gstrfuncs.h"
|
||
|
+#include "gchecksumprivate.h"
|
||
|
+#include "gtestutils.h"
|
||
|
+#include "gtypes.h"
|
||
|
+#include "glibintl.h"
|
||
|
+
|
||
|
+struct _GHmac
|
||
|
+{
|
||
|
+ int ref_count;
|
||
|
+ GChecksumType digest_type;
|
||
|
+ gnutls_hmac_hd_t hmac;
|
||
|
+ gchar *digest_str;
|
||
|
+};
|
||
|
+
|
||
|
+GHmac *
|
||
|
+g_hmac_new (GChecksumType digest_type,
|
||
|
+ const guchar *key,
|
||
|
+ gsize key_len)
|
||
|
+{
|
||
|
+ gnutls_mac_algorithm_t algo;
|
||
|
+ GHmac *hmac = g_new0 (GHmac, 1);
|
||
|
+ int ret;
|
||
|
+
|
||
|
+ hmac->ref_count = 1;
|
||
|
+ hmac->digest_type = digest_type;
|
||
|
+
|
||
|
+ switch (digest_type)
|
||
|
+ {
|
||
|
+ case G_CHECKSUM_MD5:
|
||
|
+ algo = GNUTLS_MAC_MD5;
|
||
|
+ break;
|
||
|
+ case G_CHECKSUM_SHA1:
|
||
|
+ algo = GNUTLS_MAC_SHA1;
|
||
|
+ break;
|
||
|
+ case G_CHECKSUM_SHA256:
|
||
|
+ algo = GNUTLS_MAC_SHA256;
|
||
|
+ break;
|
||
|
+ case G_CHECKSUM_SHA384:
|
||
|
+ algo = GNUTLS_MAC_SHA384;
|
||
|
+ break;
|
||
|
+ case G_CHECKSUM_SHA512:
|
||
|
+ algo = GNUTLS_MAC_SHA512;
|
||
|
+ break;
|
||
|
+ default:
|
||
|
+ g_return_val_if_reached (NULL);
|
||
|
+ }
|
||
|
+
|
||
|
+ ret = gnutls_hmac_init (&hmac->hmac, algo, key, key_len);
|
||
|
+ if (ret != 0)
|
||
|
+ {
|
||
|
+ /* There is no way to report an error here, but one possible cause of
|
||
|
+ * failure is that the requested digest may be disabled by FIPS mode.
|
||
|
+ */
|
||
|
+ g_free (hmac->hmac);
|
||
|
+ return NULL;
|
||
|
+ }
|
||
|
+
|
||
|
+ return hmac;
|
||
|
+}
|
||
|
+
|
||
|
+GHmac *
|
||
|
+g_hmac_copy (const GHmac *hmac)
|
||
|
+{
|
||
|
+ GHmac *copy;
|
||
|
+
|
||
|
+ g_return_val_if_fail (hmac != NULL, NULL);
|
||
|
+
|
||
|
+ copy = g_new0 (GHmac, 1);
|
||
|
+ copy->ref_count = 1;
|
||
|
+ copy->digest_type = hmac->digest_type;
|
||
|
+ copy->hmac = gnutls_hmac_copy (hmac->hmac);
|
||
|
+
|
||
|
+ /* g_hmac_copy is not allowed to fail, so we'll have to crash on error. */
|
||
|
+ if (!copy->hmac)
|
||
|
+ g_error ("gnutls_hmac_copy failed");
|
||
|
+
|
||
|
+ return copy;
|
||
|
+}
|
||
|
+
|
||
|
+GHmac *
|
||
|
+g_hmac_ref (GHmac *hmac)
|
||
|
+{
|
||
|
+ g_return_val_if_fail (hmac != NULL, NULL);
|
||
|
+
|
||
|
+ g_atomic_int_inc (&hmac->ref_count);
|
||
|
+
|
||
|
+ return hmac;
|
||
|
+}
|
||
|
+
|
||
|
+void
|
||
|
+g_hmac_unref (GHmac *hmac)
|
||
|
+{
|
||
|
+ g_return_if_fail (hmac != NULL);
|
||
|
+
|
||
|
+ if (g_atomic_int_dec_and_test (&hmac->ref_count))
|
||
|
+ {
|
||
|
+ gnutls_hmac_deinit (hmac->hmac, NULL);
|
||
|
+ g_free (hmac->digest_str);
|
||
|
+ g_free (hmac);
|
||
|
+ }
|
||
|
+}
|
||
|
+
|
||
|
+
|
||
|
+void
|
||
|
+g_hmac_update (GHmac *hmac,
|
||
|
+ const guchar *data,
|
||
|
+ gssize length)
|
||
|
+{
|
||
|
+ int ret;
|
||
|
+
|
||
|
+ g_return_if_fail (hmac != NULL);
|
||
|
+ g_return_if_fail (length == 0 || data != NULL);
|
||
|
+
|
||
|
+ if (length == -1)
|
||
|
+ length = strlen ((const char *)data);
|
||
|
+
|
||
|
+ /* g_hmac_update is not allowed to fail, so we'll have to crash on error. */
|
||
|
+ ret = gnutls_hmac (hmac->hmac, data, length);
|
||
|
+ if (ret != 0)
|
||
|
+ g_error ("gnutls_hmac failed: %s", gnutls_strerror (ret));
|
||
|
+}
|
||
|
+
|
||
|
+const gchar *
|
||
|
+g_hmac_get_string (GHmac *hmac)
|
||
|
+{
|
||
|
+ guint8 *buffer;
|
||
|
+ gsize digest_len;
|
||
|
+
|
||
|
+ g_return_val_if_fail (hmac != NULL, NULL);
|
||
|
+
|
||
|
+ if (hmac->digest_str)
|
||
|
+ return hmac->digest_str;
|
||
|
+
|
||
|
+ digest_len = g_checksum_type_get_length (hmac->digest_type);
|
||
|
+ buffer = g_alloca (digest_len);
|
||
|
+
|
||
|
+ gnutls_hmac_output (hmac->hmac, buffer);
|
||
|
+ hmac->digest_str = gchecksum_digest_to_string (buffer, digest_len);
|
||
|
+ return hmac->digest_str;
|
||
|
+}
|
||
|
+
|
||
|
+
|
||
|
+void
|
||
|
+g_hmac_get_digest (GHmac *hmac,
|
||
|
+ guint8 *buffer,
|
||
|
+ gsize *digest_len)
|
||
|
+{
|
||
|
+ g_return_if_fail (hmac != NULL);
|
||
|
+
|
||
|
+ gnutls_hmac_output (hmac->hmac, buffer);
|
||
|
+ *digest_len = g_checksum_type_get_length (hmac->digest_type);
|
||
|
+}
|
||
|
diff --git a/glib/ghmac.c b/glib/ghmac.c
|
||
|
index 7db38e34a..b03a5aea7 100644
|
||
|
--- a/glib/ghmac.c
|
||
|
+++ b/glib/ghmac.c
|
||
|
@@ -33,6 +33,7 @@
|
||
|
#include "gtypes.h"
|
||
|
#include "glibintl.h"
|
||
|
|
||
|
+#error "build configuration error"
|
||
|
|
||
|
/**
|
||
|
* SECTION:hmac
|
||
|
@@ -84,6 +85,18 @@ struct _GHmac
|
||
|
* Support for digests of type %G_CHECKSUM_SHA512 has been added in GLib 2.42.
|
||
|
* Support for %G_CHECKSUM_SHA384 was added in GLib 2.52.
|
||
|
*
|
||
|
+ * Note that #GHmac creation may fail, in which case this function will
|
||
|
+ * return %NULL. Since there is no error parameter, it is not possible
|
||
|
+ * to indicate why.
|
||
|
+ *
|
||
|
+ * In Fedora, CentOS Stream, and Red Hat Enterprise Linux, GLib is
|
||
|
+ * configured to use GnuTLS to implement #GHmac in order to support FIPS
|
||
|
+ * compliance. This introduces additional failure possibilities that are
|
||
|
+ * not present in upstream GLib. For example, the creation of a #GHmac
|
||
|
+ * will fail if @digest_type is %G_CHECKSUM_MD5 and the system is
|
||
|
+ * running in FIPS mode. #GHmac creation may also fail if GLib is unable
|
||
|
+ * to load GnuTLS.
|
||
|
+ *
|
||
|
* Returns: the newly created #GHmac, or %NULL.
|
||
|
* Use g_hmac_unref() to free the memory allocated by it.
|
||
|
*
|
||
|
diff --git a/glib/meson.build b/glib/meson.build
|
||
|
index 306a67f13..07d41456d 100644
|
||
|
--- a/glib/meson.build
|
||
|
+++ b/glib/meson.build
|
||
|
@@ -127,6 +127,7 @@ glib_sources = files(
|
||
|
'gbytes.c',
|
||
|
'gcharset.c',
|
||
|
'gchecksum.c',
|
||
|
+ 'gchecksumprivate.h',
|
||
|
'gconvert.c',
|
||
|
'gdataset.c',
|
||
|
'gdate.c',
|
||
|
@@ -137,7 +138,6 @@ glib_sources = files(
|
||
|
'gfileutils.c',
|
||
|
'ggettext.c',
|
||
|
'ghash.c',
|
||
|
- 'ghmac.c',
|
||
|
'ghmac-utils.c',
|
||
|
'ghook.c',
|
||
|
'ghostutils.c',
|
||
|
@@ -223,6 +223,12 @@ else
|
||
|
glib_dtrace_hdr = []
|
||
|
endif
|
||
|
|
||
|
+if get_option('gnutls')
|
||
|
+ glib_sources += files('ghmac-gnutls.c')
|
||
|
+else
|
||
|
+ glib_sources += files('ghmac.c')
|
||
|
+endif
|
||
|
+
|
||
|
pcre_static_args = []
|
||
|
|
||
|
if use_pcre_static_flag
|
||
|
@@ -239,7 +245,7 @@ libglib = library('glib-2.0',
|
||
|
link_args : platform_ldflags + noseh_link_args,
|
||
|
include_directories : configinc,
|
||
|
link_with : [charset_lib, gnulib_lib],
|
||
|
- dependencies : [pcre, thread_dep, libintl, librt] + libiconv + platform_deps,
|
||
|
+ dependencies : [pcre, thread_dep, libintl, librt] + libgnutls_dep + libiconv + platform_deps,
|
||
|
c_args : ['-DG_LOG_DOMAIN="GLib"', '-DGLIB_COMPILATION'] + pcre_static_args + glib_hidden_visibility_args
|
||
|
)
|
||
|
|
||
|
diff --git a/meson.build b/meson.build
|
||
|
index 0cefee51d..eaf8d3900 100644
|
||
|
--- a/meson.build
|
||
|
+++ b/meson.build
|
||
|
@@ -1596,6 +1596,13 @@ if host_system == 'linux' and get_option('libmount')
|
||
|
libmount_dep = [dependency('mount', version : '>=2.23', required : true)]
|
||
|
endif
|
||
|
|
||
|
+# gnutls is used optionally by ghmac
|
||
|
+libgnutls_dep = []
|
||
|
+if get_option('gnutls')
|
||
|
+ libgnutls_dep = [dependency('gnutls', version : '>=3.6.9', required : true)]
|
||
|
+ glib_conf.set('HAVE_GNUTLS', 1)
|
||
|
+endif
|
||
|
+
|
||
|
if host_system == 'windows'
|
||
|
winsock2 = cc.find_library('ws2_32')
|
||
|
endif
|
||
|
diff --git a/meson_options.txt b/meson_options.txt
|
||
|
index 4504c6858..d18c42a36 100644
|
||
|
--- a/meson_options.txt
|
||
|
+++ b/meson_options.txt
|
||
|
@@ -34,6 +34,11 @@ option('libmount',
|
||
|
value : true,
|
||
|
description : 'build with libmount support')
|
||
|
|
||
|
+option('gnutls',
|
||
|
+ type : 'boolean',
|
||
|
+ value : false,
|
||
|
+ description : 'build with gnutls support')
|
||
|
+
|
||
|
option('internal_pcre',
|
||
|
type : 'boolean',
|
||
|
value : false,
|
||
|
--
|
||
|
2.31.1
|
||
|
|
||
|
From 87280b23902290dcf843a42d06cedeef571a673f Mon Sep 17 00:00:00 2001
|
||
|
From: Michael Catanzaro <mcatanzaro@redhat.com>
|
||
|
Date: Thu, 1 Jul 2021 15:51:26 -0500
|
||
|
Subject: [PATCH 3/3] Add more tests for GHmac
|
||
|
|
||
|
This will test a few problems that we hit recently:
|
||
|
|
||
|
g_hmac_copy() is broken, https://bugzilla.redhat.com/show_bug.cgi?id=1786538
|
||
|
|
||
|
Crash in g_hmac_update() in FIPS mode, https://bugzilla.redhat.com/show_bug.cgi?id=1971533
|
||
|
|
||
|
Crash when passing -1 length to g_hmac_update() (discovered in #1971533)
|
||
|
---
|
||
|
glib/tests/hmac.c | 22 ++++++++++++++++++++++
|
||
|
1 file changed, 22 insertions(+)
|
||
|
|
||
|
diff --git a/glib/tests/hmac.c b/glib/tests/hmac.c
|
||
|
index 3ac3206df..16b2fac9c 100644
|
||
|
--- a/glib/tests/hmac.c
|
||
|
+++ b/glib/tests/hmac.c
|
||
|
@@ -493,6 +493,27 @@ test_hmac_for_bytes (void)
|
||
|
g_bytes_unref (data);
|
||
|
}
|
||
|
|
||
|
+static void
|
||
|
+test_ghmac_gnutls_regressions (void)
|
||
|
+{
|
||
|
+ GHmac *hmac;
|
||
|
+ GHmac *copy;
|
||
|
+
|
||
|
+ hmac = g_hmac_new (G_CHECKSUM_SHA256, (const guchar *)"abc123", sizeof ("abc123"));
|
||
|
+ g_assert_nonnull (hmac);
|
||
|
+
|
||
|
+ /* Ensure g_hmac_update() does not crash when called with -1. */
|
||
|
+ g_hmac_update (hmac, (const guchar *)"You win again, gravity!", -1);
|
||
|
+
|
||
|
+ /* Ensure g_hmac_copy() does not crash. */
|
||
|
+ copy = g_hmac_copy (hmac);
|
||
|
+ g_assert_nonnull (hmac);
|
||
|
+ g_hmac_unref (hmac);
|
||
|
+
|
||
|
+ g_assert_cmpstr (g_hmac_get_string (copy), ==, "795ba6900bcb22e8ce65c2ec02db4e85697da921deb960ee3143bf88a4a60f83");
|
||
|
+ g_hmac_unref (copy);
|
||
|
+}
|
||
|
+
|
||
|
int
|
||
|
main (int argc,
|
||
|
char **argv)
|
||
|
@@ -545,6 +566,7 @@ main (int argc,
|
||
|
g_test_add_func ("/hmac/for-data", test_hmac_for_data);
|
||
|
g_test_add_func ("/hmac/for-string", test_hmac_for_string);
|
||
|
g_test_add_func ("/hmac/for-bytes", test_hmac_for_bytes);
|
||
|
+ g_test_add_func ("/hmac/ghmac-gnutls-regressions", test_ghmac_gnutls_regressions);
|
||
|
|
||
|
return g_test_run ();
|
||
|
}
|
||
|
--
|
||
|
2.31.1
|