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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-07-08 01:48:16 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2010-07-08 01:48:16 +0000 |
| commit | ce7156b6079b4fb0a639f12919a88897c6fddac1 (patch) | |
| tree | 72c8446806ec9fd5a5abd0d41772c91c785d7632 /nuttx/net/uip/uip_igmpinit.c | |
| parent | a840b46208077e92bfeb30147aedc49d9c04aa8e (diff) | |
| download | px4-nuttx-ce7156b6079b4fb0a639f12919a88897c6fddac1.tar.gz px4-nuttx-ce7156b6079b4fb0a639f12919a88897c6fddac1.tar.bz2 px4-nuttx-ce7156b6079b4fb0a639f12919a88897c6fddac1.zip | |
Add IGMP initialization logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2778 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/net/uip/uip_igmpinit.c')
| -rwxr-xr-x | nuttx/net/uip/uip_igmpinit.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/nuttx/net/uip/uip_igmpinit.c b/nuttx/net/uip/uip_igmpinit.c new file mode 100755 index 000000000..32d986835 --- /dev/null +++ b/nuttx/net/uip/uip_igmpinit.c @@ -0,0 +1,121 @@ +/****************************************************************************
+ * net/uip/uip_igmpinit.c
+ * IGMP initialization logic
+ *
+ * Copyright (C) 2010 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * The NuttX implementation of IGMP was inspired by the IGMP add-on for the
+ * lwIP TCP/IP stack by Steve Reynolds:
+ *
+ * Copyright (c) 2002 CITEL Technologies Ltd.
+ * All rights reserved.
+ *
+ * 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.
+ * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES 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 CITEL TECHNOLOGIES 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <net/uip/uip.h>
+#include <net/uip/uip-igmp.h>
+
+#include "uip_internal.h"
+
+#ifdef CONFIG_NET_IGMP
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifdef CONFIG_NET_IPv6
+# error "IGMP for IPv6 not supported"
+#endif
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+uip_ipaddr_t g_allsystems;
+uip_ipaddr_t g_allrouters;
+
+/****************************************************************************
+ * Name: uip_igmpinit
+ *
+ * Description:
+ * Perform one-time IGMP initialization.
+ *
+ ****************************************************************************/
+void uip_igmpinit(void)
+{
+ nvdbg("IGMP initializing\n");
+
+ uip_ipaddr(g_allrouters, 224, 0, 0, 2);
+ uip_ipaddr(g_allsystems, 224, 0, 0, 1);
+
+ /* Initialize the group allocation logic */
+
+ uip_grpinit();
+}
+
+/****************************************************************************
+ * Name: uip_igmpdevinit
+ *
+ * Description:
+ * Called when a new network device is registered to configure that device
+ * for IGMP support.
+ *
+ ****************************************************************************/
+
+void uip_igmpdevinit(struct uip_driver_s *dev)
+{
+ struct igmp_group_s *group;
+
+ nvdbg("IGMP initializing dev %p\n", dev);
+ DEBUGASSERT(dev->grplist == NULL);
+
+ /* Add the all systems address to the group */
+
+ group = uip_grpalloc(dev, &g_allsystems);
+ group->state = IGMP_IDLE_MEMBER;
+
+ /* Initialize the group timer (but don't start it yet) */
+
+ group->wdog = wd_create();
+
+ /* Allow the IGMP messages at the MAC level */
+
+ uip_igmpmac(dev, &g_allrouters, true);
+ uip_igmpmac(dev, &g_allsystems, true);
+}
+
+#endif /* CONFIG_NET_IGMP */
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