Add rtems_bsd_initialize_dhcp()

libbsd.py

@@ -70,6 +70,7 @@ def rtems(mm):
             'rtems/rtems-bsd-get-task-priority.c',
             'rtems/rtems-bsd-get-task-stack-size.c',
             'rtems/rtems-bsd-ifconfig-lo0.c',
+            'rtems/rtems-bsd-init-dhcp.c',
             'rtems/rtems-bsd-rc-conf-net.c',
             'rtems/rtems-bsd-rc-conf-pf.c',
             'rtems/rtems-bsd-rc-conf.c',

libbsd_waf.py

@@ -2314,6 +2314,7 @@ def build(bld):
               'rtemsbsd/rtems/rtems-bsd-get-task-priority.c',
               'rtemsbsd/rtems/rtems-bsd-get-task-stack-size.c',
               'rtemsbsd/rtems/rtems-bsd-ifconfig-lo0.c',
+              'rtemsbsd/rtems/rtems-bsd-init-dhcp.c',
               'rtemsbsd/rtems/rtems-bsd-rc-conf-net.c',
               'rtemsbsd/rtems/rtems-bsd-rc-conf-pf.c',
               'rtemsbsd/rtems/rtems-bsd-rc-conf.c',

rtemsbsd/include/rtems/bsd/bsd.h

@@ -91,6 +91,28 @@ typedef struct {
 
 rtems_status_code rtems_bsd_initialize(void);
 
+/**
+ * @brief Initializes the libbsd and starts a DHCPCD task.
+ *
+ * The libbsd is initialized via rtems_bsd_initialize().  If this is
+ * successful, then the loop back interfaces are created.  If this is
+ * successful, then a DHCPCD task is started at the least important priority.
+ *
+ * The default devices of the BSP are initialized.  Support for
+ *   - IF_BRIDGE(4),
+ *   - LAGG(4),
+ *   - multicast routing,
+ *   - UNIX(4), and
+ *   - VLAN(4),
+ * is enabled.
+ *
+ * No RTEMS shell commands are registered.
+ *
+ * @retval RTEMS_SUCCESSFUL Successful operation.
+ * @retval otherwise An error occurred.
+ */
+rtems_status_code rtems_bsd_initialize_dhcp(void);
+
 /**
  * @brief Configures the lo0 (loopback) interface.
  *

rtemsbsd/rtems/rtems-bsd-init-dhcp.c

@@ -0,0 +1,115 @@
+/**
+ * @file
+ *
+ * @ingroup rtems_bsd_rtems
+ *
+ * @brief TODO.
+ */
+
+/*
+ * Copyright (c) 2009-2015 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <rtems/bsd/bsd.h>
+
+#include <assert.h>
+#include <sysexits.h>
+
+#include <machine/rtems-bsd-commands.h>
+
+#include <bsp.h>
+
+static void
+dhcpcd_task(rtems_task_argument arg)
+{
+	int exit_code;
+	char *dhcpcd[] = {
+	    "dhcpcd",
+	    NULL
+	};
+
+	(void)arg;
+
+	exit_code = rtems_bsd_command_dhcpcd(RTEMS_BSD_ARGC(dhcpcd), dhcpcd);
+	assert(exit_code == EX_OK);
+	(void)exit_code;
+}
+
+rtems_status_code
+rtems_bsd_initialize_dhcp(void)
+{
+	rtems_status_code sc;
+	int exit_code;
+	rtems_id id;
+
+	sc = rtems_bsd_initialize();
+	if (sc != RTEMS_SUCCESSFUL) {
+		return (sc);
+	}
+
+	exit_code = rtems_bsd_ifconfig_lo0();
+	if (exit_code != EX_OK) {
+		return (RTEMS_UNSATISFIED);
+	}
+
+	sc = rtems_task_create(
+		rtems_build_name('D', 'H', 'C', 'P'),
+		RTEMS_MAXIMUM_PRIORITY - 1,
+		2 * RTEMS_MINIMUM_STACK_SIZE,
+		RTEMS_DEFAULT_MODES,
+		RTEMS_FLOATING_POINT,
+		&id
+	);
+	if (sc != RTEMS_SUCCESSFUL) {
+		return (RTEMS_UNSATISFIED);
+	}
+
+	sc = rtems_task_start(id, dhcpcd_task, 0);
+	assert(sc == RTEMS_SUCCESSFUL);
+
+	return (RTEMS_SUCCESSFUL);
+}
+
+#if defined(LIBBSP_I386_PC386_BSP_H)
+#define RTEMS_BSD_CONFIG_DOMAIN_PAGE_MBUFS_SIZE (64 * 1024 * 1024)
+#elif defined(LIBBSP_POWERPC_QORIQ_BSP_H)
+#define RTEMS_BSD_CONFIG_DOMAIN_PAGE_MBUFS_SIZE (32 * 1024 * 1024)
+#endif
+
+#define RTEMS_BSD_CONFIG_NET_PF_UNIX
+#define RTEMS_BSD_CONFIG_NET_IP_MROUTE
+#define RTEMS_BSD_CONFIG_NET_IP6_MROUTE
+#define RTEMS_BSD_CONFIG_NET_IF_BRIDGE
+#define RTEMS_BSD_CONFIG_NET_IF_LAGG
+#define RTEMS_BSD_CONFIG_NET_IF_VLAN
+#define RTEMS_BSD_CONFIG_BSP_CONFIG
+#define RTEMS_BSD_CONFIG_INIT
+
+#include <machine/rtems-bsd-config.h>