};
/*
- * Network Order pim_msg_hdr
+ * pim_msg_hdr
* =========================
* PIM Header definition as per RFC 5059. N bit introduced to indicate
* do-not-forward option in PIM Boot strap Message.
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct pim_msg_header {
+#if (BYTE_ORDER == LITTLE_ENDIAN)
uint8_t type : 4;
uint8_t ver : 4;
+ uint8_t reserved : 7;
+ uint8_t Nbit : 1; /* No Fwd Bit */
+#elif (BYTE_ORDER == BIG_ENDIAN)
+ uint8_t ver : 4;
+ uint8_t type : 4;
uint8_t Nbit : 1; /* No Fwd Bit */
uint8_t reserved : 7;
+#else
+#error"Please set byte order"
+#endif
uint16_t checksum;
} __attribute__((packed));
struct in_addr addr;
} __attribute__((packed));
+/*
+ * Encoded Group format. RFC 4601 Sec 4.9.1
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Addr Family | Encoding Type |B| Reserved |Z| Mask Len |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Group multicast Address
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+...
+ */
struct pim_encoded_group_ipv4 {
- uint8_t ne;
uint8_t family;
+ uint8_t ne;
+#if (BYTE_ORDER == LITTLE_ENDIAN)
+ uint8_t sz : 1; /* scope zone bit */
+ uint8_t reserved : 6; /* Reserved */
+ uint8_t bidir : 1; /* Bidir bit */
+#elif (BYTE_ORDER == BIG_ENDIAN)
uint8_t bidir : 1; /* Bidir bit */
uint8_t reserved : 6; /* Reserved */
uint8_t sz : 1; /* scope zone bit */
+#else
+#error"Please set byte order"
+#endif
uint8_t mask;
struct in_addr addr;
} __attribute__((packed));
+
+/*
+ * Encoded Source format. RFC 4601 Sec 4.9.1
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Addr Family | Encoding Type | Rsrvd |S|W|R| Mask Len |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Source Address
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-...
+ */
struct pim_encoded_source_ipv4 {
- uint8_t ne;
uint8_t family;
+ uint8_t ne;
uint8_t bits;
uint8_t mask;
struct in_addr addr;