Combine poky (Yocto scarthgap), meta-openembedded (scarthgap), and meta-openwrt into a single repository. Components: - poky/ Yocto core framework (BitBake + OE-Core) - meta-openembedded/ Community layers (meta-oe, meta-python, meta-networking) - meta-openwrt/ OpenWrt customization layer - setup-env.sh One-click build environment setup - README.md Project documentation
230 lines
8.3 KiB
Diff
230 lines
8.3 KiB
Diff
From 176cb31003252a69d3fc7908e8f505c0ee006b7a Mon Sep 17 00:00:00 2001
|
|
From: Ignacio Casal Quinteiro <qignacio@amazon.com>
|
|
Date: Wed, 24 Jul 2024 15:20:35 +0200
|
|
Subject: [PATCH 1/4] websocket: add a way to restrict the total message size
|
|
|
|
Otherwise a client could send small packages smaller than
|
|
total-incoming-payload-size but still to break the server
|
|
with a big allocation
|
|
|
|
Fixes: #390
|
|
|
|
Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libsoup/-/commit/db87805ab565d67533dfed2cb409dbfd63c7fdce]
|
|
CVE: CVE-2025-32049
|
|
|
|
Signed-off-by: Changqing Li <changqing.li@windriver.com>
|
|
---
|
|
libsoup/websocket/soup-websocket-connection.c | 107 +++++++++++++++++-
|
|
libsoup/websocket/soup-websocket-connection.h | 7 ++
|
|
2 files changed, 110 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/libsoup/websocket/soup-websocket-connection.c b/libsoup/websocket/soup-websocket-connection.c
|
|
index 5eb8150..19bdd39 100644
|
|
--- a/libsoup/websocket/soup-websocket-connection.c
|
|
+++ b/libsoup/websocket/soup-websocket-connection.c
|
|
@@ -84,7 +84,7 @@ enum {
|
|
PROP_MAX_INCOMING_PAYLOAD_SIZE,
|
|
PROP_KEEPALIVE_INTERVAL,
|
|
PROP_EXTENSIONS,
|
|
-
|
|
+ PROP_MAX_TOTAL_MESSAGE_SIZE,
|
|
LAST_PROPERTY
|
|
};
|
|
|
|
@@ -126,6 +126,7 @@ typedef struct {
|
|
char *origin;
|
|
char *protocol;
|
|
guint64 max_incoming_payload_size;
|
|
+ guint64 max_total_message_size;
|
|
guint keepalive_interval;
|
|
|
|
gushort peer_close_code;
|
|
@@ -156,6 +157,7 @@ typedef struct {
|
|
} SoupWebsocketConnectionPrivate;
|
|
|
|
#define MAX_INCOMING_PAYLOAD_SIZE_DEFAULT 128 * 1024
|
|
+#define MAX_TOTAL_MESSAGE_SIZE_DEFAULT 128 * 1024
|
|
#define READ_BUFFER_SIZE 1024
|
|
#define MASK_LENGTH 4
|
|
|
|
@@ -670,8 +672,8 @@ bad_data_error_and_close (SoupWebsocketConnection *self)
|
|
}
|
|
|
|
static void
|
|
-too_big_error_and_close (SoupWebsocketConnection *self,
|
|
- guint64 payload_len)
|
|
+too_big_incoming_payload_error_and_close (SoupWebsocketConnection *self,
|
|
+ guint64 payload_len)
|
|
{
|
|
SoupWebsocketConnectionPrivate *priv = soup_websocket_connection_get_instance_private (self);
|
|
GError *error;
|
|
@@ -687,6 +689,24 @@ too_big_error_and_close (SoupWebsocketConnection *self,
|
|
emit_error_and_close (self, error, TRUE);
|
|
}
|
|
|
|
+static void
|
|
+too_big_message_error_and_close (SoupWebsocketConnection *self,
|
|
+ guint64 len)
|
|
+{
|
|
+ SoupWebsocketConnectionPrivate *priv = soup_websocket_connection_get_instance_private (self);
|
|
+ GError *error;
|
|
+
|
|
+ error = g_error_new_literal (SOUP_WEBSOCKET_ERROR,
|
|
+ SOUP_WEBSOCKET_CLOSE_TOO_BIG,
|
|
+ priv->connection_type == SOUP_WEBSOCKET_CONNECTION_SERVER ?
|
|
+ "Received WebSocket payload from the client larger than configured max-total-message-size" :
|
|
+ "Received WebSocket payload from the server larger than configured max-total-message-size");
|
|
+ g_debug ("%s received message of size %" G_GUINT64_FORMAT " or greater, but max supported size is %" G_GUINT64_FORMAT,
|
|
+ priv->connection_type == SOUP_WEBSOCKET_CONNECTION_SERVER ? "server" : "client",
|
|
+ len, priv->max_total_message_size);
|
|
+ emit_error_and_close (self, error, TRUE);
|
|
+}
|
|
+
|
|
static void
|
|
close_connection (SoupWebsocketConnection *self,
|
|
gushort code,
|
|
@@ -918,6 +938,12 @@ process_contents (SoupWebsocketConnection *self,
|
|
switch (priv->message_opcode) {
|
|
case 0x01:
|
|
case 0x02:
|
|
+ /* Safety valve */
|
|
+ if (priv->max_total_message_size > 0 &&
|
|
+ (priv->message_data->len + payload_len) > priv->max_total_message_size) {
|
|
+ too_big_message_error_and_close (self, (priv->message_data->len + payload_len));
|
|
+ return;
|
|
+ }
|
|
g_byte_array_append (priv->message_data, payload, payload_len);
|
|
break;
|
|
default:
|
|
@@ -1056,7 +1082,7 @@ process_frame (SoupWebsocketConnection *self)
|
|
/* Safety valve */
|
|
if (priv->max_incoming_payload_size > 0 &&
|
|
payload_len > priv->max_incoming_payload_size) {
|
|
- too_big_error_and_close (self, payload_len);
|
|
+ too_big_incoming_payload_error_and_close (self, payload_len);
|
|
return FALSE;
|
|
}
|
|
|
|
@@ -1363,6 +1389,10 @@ soup_websocket_connection_get_property (GObject *object,
|
|
g_value_set_pointer (value, priv->extensions);
|
|
break;
|
|
|
|
+ case PROP_MAX_TOTAL_MESSAGE_SIZE:
|
|
+ g_value_set_uint64 (value, priv->max_total_message_size);
|
|
+ break;
|
|
+
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
@@ -1416,6 +1446,10 @@ soup_websocket_connection_set_property (GObject *object,
|
|
priv->extensions = g_value_get_pointer (value);
|
|
break;
|
|
|
|
+ case PROP_MAX_TOTAL_MESSAGE_SIZE:
|
|
+ priv->max_total_message_size = g_value_get_uint64 (value);
|
|
+ break;
|
|
+
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
@@ -1628,6 +1662,26 @@ soup_websocket_connection_class_init (SoupWebsocketConnectionClass *klass)
|
|
G_PARAM_CONSTRUCT_ONLY |
|
|
G_PARAM_STATIC_STRINGS);
|
|
|
|
+ /**
|
|
+ * SoupWebsocketConnection:max-total-message-size:
|
|
+ *
|
|
+ * The total message size for incoming packets.
|
|
+ *
|
|
+ * The protocol expects or 0 to not limit it.
|
|
+ *
|
|
+ * Since: 3.8
|
|
+ */
|
|
+ properties[PROP_MAX_TOTAL_MESSAGE_SIZE] =
|
|
+ g_param_spec_uint64 ("max-total-message-size",
|
|
+ "Max total message size",
|
|
+ "Max total message size ",
|
|
+ 0,
|
|
+ G_MAXUINT64,
|
|
+ MAX_TOTAL_MESSAGE_SIZE_DEFAULT,
|
|
+ G_PARAM_READWRITE |
|
|
+ G_PARAM_CONSTRUCT |
|
|
+ G_PARAM_STATIC_STRINGS);
|
|
+
|
|
g_object_class_install_properties (gobject_class, LAST_PROPERTY, properties);
|
|
|
|
/**
|
|
@@ -2111,6 +2165,51 @@ soup_websocket_connection_set_max_incoming_payload_size (SoupWebsocketConnection
|
|
}
|
|
}
|
|
|
|
+/**
|
|
+ * soup_websocket_connection_get_max_total_message_size:
|
|
+ * @self: the WebSocket
|
|
+ *
|
|
+ * Gets the maximum total message size allowed for packets.
|
|
+ *
|
|
+ * Returns: the maximum total message size.
|
|
+ *
|
|
+ * Since: 3.8
|
|
+ */
|
|
+guint64
|
|
+soup_websocket_connection_get_max_total_message_size (SoupWebsocketConnection *self)
|
|
+{
|
|
+ SoupWebsocketConnectionPrivate *priv = soup_websocket_connection_get_instance_private (self);
|
|
+
|
|
+ g_return_val_if_fail (SOUP_IS_WEBSOCKET_CONNECTION (self), MAX_TOTAL_MESSAGE_SIZE_DEFAULT);
|
|
+
|
|
+ return priv->max_total_message_size;
|
|
+}
|
|
+
|
|
+/**
|
|
+ * soup_websocket_connection_set_max_total_message_size:
|
|
+ * @self: the WebSocket
|
|
+ * @max_total_message_size: the maximum total message size
|
|
+ *
|
|
+ * Sets the maximum total message size allowed for packets.
|
|
+ *
|
|
+ * It does not limit the outgoing packet size.
|
|
+ *
|
|
+ * Since: 3.8
|
|
+ */
|
|
+void
|
|
+soup_websocket_connection_set_max_total_message_size (SoupWebsocketConnection *self,
|
|
+ guint64 max_total_message_size)
|
|
+{
|
|
+ SoupWebsocketConnectionPrivate *priv = soup_websocket_connection_get_instance_private (self);
|
|
+
|
|
+ g_return_if_fail (SOUP_IS_WEBSOCKET_CONNECTION (self));
|
|
+
|
|
+ if (priv->max_total_message_size != max_total_message_size) {
|
|
+ priv->max_total_message_size = max_total_message_size;
|
|
+ g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MAX_TOTAL_MESSAGE_SIZE]);
|
|
+ }
|
|
+}
|
|
+
|
|
/**
|
|
* soup_websocket_connection_get_keepalive_interval:
|
|
* @self: the WebSocket
|
|
diff --git a/libsoup/websocket/soup-websocket-connection.h b/libsoup/websocket/soup-websocket-connection.h
|
|
index eeb093d..922de56 100644
|
|
--- a/libsoup/websocket/soup-websocket-connection.h
|
|
+++ b/libsoup/websocket/soup-websocket-connection.h
|
|
@@ -88,6 +88,13 @@ SOUP_AVAILABLE_IN_ALL
|
|
void soup_websocket_connection_set_max_incoming_payload_size (SoupWebsocketConnection *self,
|
|
guint64 max_incoming_payload_size);
|
|
|
|
+SOUP_AVAILABLE_IN_3_0
|
|
+guint64 soup_websocket_connection_get_max_total_message_size (SoupWebsocketConnection *self);
|
|
+
|
|
+SOUP_AVAILABLE_IN_3_0
|
|
+void soup_websocket_connection_set_max_total_message_size (SoupWebsocketConnection *self,
|
|
+ guint64 max_total_message_size);
|
|
+
|
|
SOUP_AVAILABLE_IN_ALL
|
|
guint soup_websocket_connection_get_keepalive_interval (SoupWebsocketConnection *self);
|
|
|
|
--
|
|
2.34.1
|
|
|