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-rw-r--r--ChangeLog4
-rw-r--r--src/backend/merchant.conf13
-rw-r--r--src/backend/taler-merchant-httpd.c122
-rw-r--r--src/lib/test_merchant_api.conf3
4 files changed, 121 insertions, 21 deletions
diff --git a/ChangeLog b/ChangeLog
index ed946cc6..6ea07385 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Mar 6 00:59:25 CET 2017
+ Implement BIND_TO option to allow binding backend to a particular
+ IP address (#4752). Enabling use of dual-stack by default. -CG
+
Thu Dec 15 10:37:08 CET 2016
Implementing:
- /map/in, /map/out API, to allow frontends to store
diff --git a/src/backend/merchant.conf b/src/backend/merchant.conf
index 49849bc3..3723af08 100644
--- a/src/backend/merchant.conf
+++ b/src/backend/merchant.conf
@@ -5,14 +5,25 @@
# General settings for the backend.
[merchant]
+
+# Use TCP or UNIX domain sockets?
SERVE = tcp
-# Which HTTP port does the backend listen on?
+# Which HTTP port does the backend listen on? Only used if "SERVE" is 'tcp'.
PORT = 9966
+# Which IP address should we bind to? i.e. 127.0.0.1 or ::1 for loopback.
+# Can also be given as a hostname. We will bind to the wildcard (dual-stack)
+# if left empty. Only used if "SERVE" is 'tcp'.
+# BIND_TO =
+
+
+# Which unix domain path should we bind to? Only used if "SERVE" is 'unix'.
UNIXPATH = ${TALER_RUNTIME_DIR}/merchant.http
+# What should be the file access permissions (see chmod) for "UNIXPATH"?
UNIXPATH_MODE = 660
+
# Where does the backend store the merchant's private key?
KEYFILE = ${TALER_DATA_HOME}/merchant/merchant.priv
diff --git a/src/backend/taler-merchant-httpd.c b/src/backend/taler-merchant-httpd.c
index cb083017..b400416e 100644
--- a/src/backend/taler-merchant-httpd.c
+++ b/src/backend/taler-merchant-httpd.c
@@ -1,6 +1,6 @@
/*
This file is part of TALER
- (C) 2014, 2015, 2016 INRIA
+ (C) 2014-2017 INRIA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU Affero General Public License as published by the Free Software
@@ -881,41 +881,57 @@ run (void *cls,
un = GNUNET_new (struct sockaddr_un);
un->sun_family = AF_UNIX;
- strncpy (un->sun_path, serve_unixpath, sizeof (un->sun_path) - 1);
+ strncpy (un->sun_path,
+ serve_unixpath,
+ sizeof (un->sun_path) - 1);
GNUNET_NETWORK_unix_precheck (un);
- if (NULL == (nh = GNUNET_NETWORK_socket_create (AF_UNIX, SOCK_STREAM, 0)))
+ if (NULL == (nh = GNUNET_NETWORK_socket_create (AF_UNIX,
+ SOCK_STREAM,
+ 0)))
{
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "create(for AF_UNIX)");
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+ "socket(AF_UNIX)");
GNUNET_SCHEDULER_shutdown ();
return;
}
- if (GNUNET_OK != GNUNET_NETWORK_socket_bind (nh, (void *) un, sizeof (struct sockaddr_un)))
+ if (GNUNET_OK !=
+ GNUNET_NETWORK_socket_bind (nh,
+ (void *) un,
+ sizeof (struct sockaddr_un)))
{
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "bind(for AF_UNIX)");
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+ "bind(AF_UNIX)");
GNUNET_SCHEDULER_shutdown ();
return;
}
- if (GNUNET_OK != GNUNET_NETWORK_socket_listen (nh, UNIX_BACKLOG))
+ if (GNUNET_OK !=
+ GNUNET_NETWORK_socket_listen (nh,
+ UNIX_BACKLOG))
{
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "listen(for AF_UNIX)");
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+ "listen(AF_UNIX)");
GNUNET_SCHEDULER_shutdown ();
return;
}
fh = GNUNET_NETWORK_get_fd (nh);
- if (0 != chmod (serve_unixpath, unixpath_mode))
+ GNUNET_NETWORK_socket_free_memory_only_ (nh);
+ if (0 != chmod (serve_unixpath,
+ unixpath_mode))
{
- fprintf (stderr, "chmod failed: %s\n", strerror (errno));
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+ "chmod");
GNUNET_SCHEDULER_shutdown ();
return;
}
- GNUNET_NETWORK_socket_free_memory_only_ (nh);
port = 0;
}
else if (0 == strcmp (serve_type, "tcp"))
{
+ char *bind_to;
+
if (GNUNET_SYSERR ==
GNUNET_CONFIGURATION_get_value_number (config,
"merchant",
@@ -928,7 +944,81 @@ run (void *cls,
GNUNET_SCHEDULER_shutdown ();
return;
}
- fh = -1;
+ if (GNUNET_OK ==
+ GNUNET_CONFIGURATION_get_value_string (config,
+ "merchant",
+ "BIND_TO",
+ &bind_to))
+ {
+ char port_str[6];
+ struct addrinfo hints;
+ struct addrinfo *res;
+ int ec;
+ struct GNUNET_NETWORK_Handle *nh;
+
+ GNUNET_snprintf (port_str,
+ sizeof (port_str),
+ "%u",
+ (uint16_t) port);
+ memset (&hints, 0, sizeof (hints));
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_protocol = IPPROTO_TCP;
+ hints.ai_flags = AI_PASSIVE | AI_IDN;
+ if (0 !=
+ (ec = getaddrinfo (bind_to,
+ port_str,
+ &hints,
+ &res)))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Failed to resolve BIND_TO address `%s': %s\n",
+ bind_to,
+ gai_strerror (ec));
+ GNUNET_free (bind_to);
+ GNUNET_SCHEDULER_shutdown ();
+ return;
+ }
+ GNUNET_free (bind_to);
+
+ if (NULL == (nh = GNUNET_NETWORK_socket_create (res->ai_family,
+ res->ai_socktype,
+ res->ai_protocol)))
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+ "socket");
+ freeaddrinfo (res);
+ GNUNET_SCHEDULER_shutdown ();
+ return;
+ }
+ if (GNUNET_OK !=
+ GNUNET_NETWORK_socket_bind (nh,
+ res->ai_addr,
+ res->ai_addrlen))
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+ "bind");
+ freeaddrinfo (res);
+ GNUNET_SCHEDULER_shutdown ();
+ return;
+ }
+ freeaddrinfo (res);
+ if (GNUNET_OK !=
+ GNUNET_NETWORK_socket_listen (nh,
+ UNIX_BACKLOG))
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+ "listen");
+ GNUNET_SCHEDULER_shutdown ();
+ return;
+ }
+ fh = GNUNET_NETWORK_get_fd (nh);
+ GNUNET_NETWORK_socket_free_memory_only_ (nh);
+ }
+ else
+ {
+ fh = -1;
+ }
}
else
{
@@ -936,15 +1026,13 @@ run (void *cls,
GNUNET_assert (0);
}
}
- mhd = MHD_start_daemon (MHD_USE_SUSPEND_RESUME,
+ mhd = MHD_start_daemon (MHD_USE_SUSPEND_RESUME | MHD_USE_DUAL_STACK,
port,
NULL, NULL,
&url_handler, NULL,
MHD_OPTION_LISTEN_SOCKET, fh,
- MHD_OPTION_NOTIFY_COMPLETED,
- &handle_mhd_completion_callback, NULL,
- MHD_OPTION_CONNECTION_TIMEOUT,
- (unsigned int) 10 /* 10s */,
+ MHD_OPTION_NOTIFY_COMPLETED, &handle_mhd_completion_callback, NULL,
+ MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 10 /* 10s */,
MHD_OPTION_END);
if (NULL == mhd)
{
diff --git a/src/lib/test_merchant_api.conf b/src/lib/test_merchant_api.conf
index 0fcd11a7..dc580e26 100644
--- a/src/lib/test_merchant_api.conf
+++ b/src/lib/test_merchant_api.conf
@@ -19,9 +19,6 @@ CURRENCY = EUR
# Which port do we run the backend on? (HTTP server)
PORT = 8082
-# FIXME: is this one used?
-HOSTNAME = localhost
-
# How quickly do we want the exchange to send us our money?
# Used only if the frontend does not specify a value.
# FIXME: EDATE is a bit short, 'execution_delay'?