1 files changed, 45 insertions, 0 deletions
diff --git a/include/linux/pim.h b/include/linux/pim.h
new file mode 100644
index 000000000000..236ffd317394
--- /dev/null
+++ b/include/linux/pim.h
@@ -0,0 +1,45 @@
+#ifndef __LINUX_PIM_H
+#define __LINUX_PIM_H
+
+#include <asm/byteorder.h>
+
+#ifndef __KERNEL__
+struct pim {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+	__u8	pim_type:4,		/* PIM message type */
+		pim_ver:4;		/* PIM version */
+#elif defined(__BIG_ENDIAN_BITFIELD)
+	__u8	pim_ver:4;		/* PIM version */
+		pim_type:4;		/* PIM message type */
+#endif
+	__u8	pim_rsv;		/* Reserved */
+	__be16	pim_cksum;		/* Checksum */
+};
+
+#define PIM_MINLEN		8
+#endif
+
+/* Message types - V1 */
+#define PIM_V1_VERSION		__constant_htonl(0x10000000)
+#define PIM_V1_REGISTER		1
+
+/* Message types - V2 */
+#define PIM_VERSION		2
+#define PIM_REGISTER		1
+
+#if defined(__KERNEL__)
+#define PIM_NULL_REGISTER	__constant_htonl(0x40000000)
+
+/* PIMv2 register message header layout (ietf-draft-idmr-pimvsm-v2-00.ps */
+struct pimreghdr
+{
+	__u8	type;
+	__u8	reserved;
+	__be16	csum;
+	__be32	flags;
+};
+
+struct sk_buff;
+extern int pim_rcv_v1(struct sk_buff *);
+#endif
+#endif