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authorDaniel P. Berrange <berrange@redhat.com>2015-07-01 18:10:36 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2015-07-08 13:11:01 +0200
commit8e9b0d24fb986d4241ae3b77752eca5dab4cb486 (patch)
treece366ef15d1da340c5219bfd7814fa0b4a102d87 /ui/vnc-ws.c
parent488981a4af396551a3178d032cc2b41d9553ada2 (diff)
downloadqemu-8e9b0d24fb986d4241ae3b77752eca5dab4cb486.tar.gz
ui: convert VNC websockets to use crypto APIs
Remove the direct use of gnutls for hash processing in the websockets code, in favour of using the crypto APIs. This allows the websockets code to be built unconditionally removing countless conditional checks from the VNC code. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1435770638-25715-9-git-send-email-berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'ui/vnc-ws.c')
-rw-r--r--ui/vnc-ws.c22
1 files changed, 10 insertions, 12 deletions
diff --git a/ui/vnc-ws.c b/ui/vnc-ws.c
index 8c18268054..b4cb6bde70 100644
--- a/ui/vnc-ws.c
+++ b/ui/vnc-ws.c
@@ -20,6 +20,7 @@
#include "vnc.h"
#include "qemu/main-loop.h"
+#include "crypto/hash.h"
#ifdef CONFIG_VNC_TLS
#include "qemu/sockets.h"
@@ -203,24 +204,21 @@ static char *vncws_extract_handshake_entry(const char *handshake,
static void vncws_send_handshake_response(VncState *vs, const char* key)
{
char combined_key[WS_CLIENT_KEY_LEN + WS_GUID_LEN + 1];
- unsigned char hash[SHA1_DIGEST_LEN];
- size_t hash_size = sizeof(hash);
char *accept = NULL, *response = NULL;
- gnutls_datum_t in;
- int ret;
+ Error *err = NULL;
g_strlcpy(combined_key, key, WS_CLIENT_KEY_LEN + 1);
g_strlcat(combined_key, WS_GUID, WS_CLIENT_KEY_LEN + WS_GUID_LEN + 1);
/* hash and encode it */
- in.data = (void *)combined_key;
- in.size = WS_CLIENT_KEY_LEN + WS_GUID_LEN;
- ret = gnutls_fingerprint(GNUTLS_DIG_SHA1, &in, hash, &hash_size);
- if (ret == GNUTLS_E_SUCCESS && hash_size <= SHA1_DIGEST_LEN) {
- accept = g_base64_encode(hash, hash_size);
- }
- if (accept == NULL) {
- VNC_DEBUG("Hashing Websocket combined key failed\n");
+ if (qcrypto_hash_base64(QCRYPTO_HASH_ALG_SHA1,
+ combined_key,
+ WS_CLIENT_KEY_LEN + WS_GUID_LEN,
+ &accept,
+ &err) < 0) {
+ VNC_DEBUG("Hashing Websocket combined key failed %s\n",
+ error_get_pretty(err));
+ error_free(err);
vnc_client_error(vs);
return;
}