These changes are the raw update to qemu-2.6.

[kvmfornfv.git] / qemu / roms / ipxe / src / net / tcp / httpbasic.c

diff --git a/qemu/roms/ipxe/src/net/tcp/httpbasic.c b/qemu/roms/ipxe/src/net/tcp/httpbasic.c
new file mode 100644 (file)
index 0000000..7ed7de9
--- /dev/null
+++ b/qemu/roms/ipxe/src/net/tcp/httpbasic.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ * You can also choose to distribute this program under the terms of
+ * the Unmodified Binary Distribution Licence (as given in the file
+ * COPYING.UBDL), provided that you have satisfied its requirements.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+/**
+ * @file
+ *
+ * Hyper Text Transfer Protocol (HTTP) Basic authentication
+ *
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <ipxe/uri.h>
+#include <ipxe/base64.h>
+#include <ipxe/http.h>
+
+/* Disambiguate the various error causes */
+#define EACCES_USERNAME __einfo_error ( EINFO_EACCES_USERNAME )
+#define EINFO_EACCES_USERNAME                                          \
+       __einfo_uniqify ( EINFO_EACCES, 0x01,                           \
+                         "No username available for Basic authentication" )
+
+/**
+ * Perform HTTP Basic authentication
+ *
+ * @v http             HTTP transaction
+ * @ret rc             Return status code
+ */
+static int http_basic_authenticate ( struct http_transaction *http ) {
+       struct http_request_auth *req = &http->request.auth;
+
+       /* Record username and password */
+       if ( ! http->uri->user ) {
+               DBGC ( http, "HTTP %p has no username for Basic "
+                      "authentication\n", http );
+               return -EACCES_USERNAME;
+       }
+       req->username = http->uri->user;
+       req->password = ( http->uri->password ? http->uri->password : "" );
+
+       return 0;
+}
+
+/**
+ * Construct HTTP "Authorization" header for Basic authentication
+ *
+ * @v http             HTTP transaction
+ * @v buf              Buffer
+ * @v len              Length of buffer
+ * @ret len            Length of header value, or negative error
+ */
+static int http_format_basic_auth ( struct http_transaction *http,
+                                   char *buf, size_t len ) {
+       struct http_request_auth *req = &http->request.auth;
+       size_t user_pw_len = ( strlen ( req->username ) + 1 /* ":" */ +
+                              strlen ( req->password ) );
+       char user_pw[ user_pw_len + 1 /* NUL */ ];
+
+       /* Sanity checks */
+       assert ( req->username != NULL );
+       assert ( req->password != NULL );
+
+       /* Construct "user:password" string */
+       snprintf ( user_pw, sizeof ( user_pw ), "%s:%s",
+                  req->username, req->password );
+
+       /* Construct response */
+       return base64_encode ( user_pw, user_pw_len, buf, len );
+}
+
+/** HTTP Basic authentication scheme */
+struct http_authentication http_basic_auth __http_authentication = {
+       .name = "Basic",
+       .authenticate = http_basic_authenticate,
+       .format = http_format_basic_auth,
+};
+
+/* Drag in HTTP authentication support */
+REQUIRING_SYMBOL ( http_basic_auth );
+REQUIRE_OBJECT ( httpauth );