*/
#include <stdint.h>
+#include <sys/types.h>
#include <netinet/in.h>
+#include <netinet/ip.h>
#include <rte_byteorder.h>
#include <rte_mbuf.h>
} __attribute__((__packed__));
/** Create IPv4 address */
-#define IPv4(a,b,c,d) ((uint32_t)(((a) & 0xff) << 24) | \
+#define RTE_IPV4(a, b, c, d) ((uint32_t)(((a) & 0xff) << 24) | \
(((b) & 0xff) << 16) | \
(((c) & 0xff) << 8) | \
((d) & 0xff))
/** Maximal IPv4 packet length (including a header) */
-#define IPV4_MAX_PKT_LEN 65535
+#define RTE_IPV4_MAX_PKT_LEN 65535
/** Internet header length mask for version_ihl field */
-#define IPV4_HDR_IHL_MASK (0x0f)
+#define RTE_IPV4_HDR_IHL_MASK (0x0f)
/**
* Internet header length field multiplier (IHL field specifies overall header
* length in number of 4-byte words)
*/
-#define IPV4_IHL_MULTIPLIER (4)
+#define RTE_IPV4_IHL_MULTIPLIER (4)
+
+/* Type of Service fields */
+#define RTE_IPV4_HDR_DSCP_MASK (0xfc)
+#define RTE_IPV4_HDR_ECN_MASK (0x03)
+#define RTE_IPV4_HDR_ECN_CE RTE_IPV4_HDR_ECN_MASK
/* Fragment Offset * Flags. */
-#define IPV4_HDR_DF_SHIFT 14
-#define IPV4_HDR_MF_SHIFT 13
-#define IPV4_HDR_FO_SHIFT 3
+#define RTE_IPV4_HDR_DF_SHIFT 14
+#define RTE_IPV4_HDR_MF_SHIFT 13
+#define RTE_IPV4_HDR_FO_SHIFT 3
-#define IPV4_HDR_DF_FLAG (1 << IPV4_HDR_DF_SHIFT)
-#define IPV4_HDR_MF_FLAG (1 << IPV4_HDR_MF_SHIFT)
+#define RTE_IPV4_HDR_DF_FLAG (1 << RTE_IPV4_HDR_DF_SHIFT)
+#define RTE_IPV4_HDR_MF_FLAG (1 << RTE_IPV4_HDR_MF_SHIFT)
-#define IPV4_HDR_OFFSET_MASK ((1 << IPV4_HDR_MF_SHIFT) - 1)
+#define RTE_IPV4_HDR_OFFSET_MASK ((1 << RTE_IPV4_HDR_MF_SHIFT) - 1)
-#define IPV4_HDR_OFFSET_UNITS 8
+#define RTE_IPV4_HDR_OFFSET_UNITS 8
/*
* IPv4 address types
*/
-#define IPV4_ANY ((uint32_t)0x00000000) /**< 0.0.0.0 */
-#define IPV4_LOOPBACK ((uint32_t)0x7f000001) /**< 127.0.0.1 */
-#define IPV4_BROADCAST ((uint32_t)0xe0000000) /**< 224.0.0.0 */
-#define IPV4_ALLHOSTS_GROUP ((uint32_t)0xe0000001) /**< 224.0.0.1 */
-#define IPV4_ALLRTRS_GROUP ((uint32_t)0xe0000002) /**< 224.0.0.2 */
-#define IPV4_MAX_LOCAL_GROUP ((uint32_t)0xe00000ff) /**< 224.0.0.255 */
+#define RTE_IPV4_ANY ((uint32_t)0x00000000) /**< 0.0.0.0 */
+#define RTE_IPV4_LOOPBACK ((uint32_t)0x7f000001) /**< 127.0.0.1 */
+#define RTE_IPV4_BROADCAST ((uint32_t)0xe0000000) /**< 224.0.0.0 */
+#define RTE_IPV4_ALLHOSTS_GROUP ((uint32_t)0xe0000001) /**< 224.0.0.1 */
+#define RTE_IPV4_ALLRTRS_GROUP ((uint32_t)0xe0000002) /**< 224.0.0.2 */
+#define RTE_IPV4_MAX_LOCAL_GROUP ((uint32_t)0xe00000ff) /**< 224.0.0.255 */
/*
* IPv4 Multicast-related macros
*/
-#define IPV4_MIN_MCAST IPv4(224, 0, 0, 0) /**< Minimal IPv4-multicast address */
-#define IPV4_MAX_MCAST IPv4(239, 255, 255, 255) /**< Maximum IPv4 multicast address */
+#define RTE_IPV4_MIN_MCAST \
+ RTE_IPV4(224, 0, 0, 0) /**< Minimal IPv4-multicast address */
+#define RTE_IPV4_MAX_MCAST \
+ RTE_IPV4(239, 255, 255, 255) /**< Maximum IPv4 multicast address */
+
+#define RTE_IS_IPV4_MCAST(x) \
+ ((x) >= RTE_IPV4_MIN_MCAST && (x) <= RTE_IPV4_MAX_MCAST)
+ /**< check if IPv4 address is multicast */
-#define IS_IPV4_MCAST(x) \
- ((x) >= IPV4_MIN_MCAST && (x) <= IPV4_MAX_MCAST) /**< check if IPv4 address is multicast */
+/* IPv4 default fields values */
+#define RTE_IPV4_MIN_IHL (0x5)
+#define RTE_IPV4_VHL_DEF (IPVERSION | RTE_IPV4_MIN_IHL)
/**
* @internal Calculate a sum of all words in the buffer.
} __attribute__((__packed__));
/* IPv6 vtc_flow: IPv / TC / flow_label */
-#define IPV6_HDR_FL_SHIFT 0
-#define IPV6_HDR_TC_SHIFT 20
-#define IPV6_HDR_FL_MASK ((1u << IPV6_HDR_TC_SHIFT) - 1)
-#define IPV6_HDR_TC_MASK (0xf << IPV6_HDR_TC_SHIFT)
+#define RTE_IPV6_HDR_FL_SHIFT 0
+#define RTE_IPV6_HDR_TC_SHIFT 20
+#define RTE_IPV6_HDR_FL_MASK ((1u << RTE_IPV6_HDR_TC_SHIFT) - 1)
+#define RTE_IPV6_HDR_TC_MASK (0xff << RTE_IPV6_HDR_TC_SHIFT)
+#define RTE_IPV6_HDR_DSCP_MASK (0xfc << RTE_IPV6_HDR_TC_SHIFT)
+#define RTE_IPV6_HDR_ECN_MASK (0x03 << RTE_IPV6_HDR_TC_SHIFT)
+#define RTE_IPV6_HDR_ECN_CE RTE_IPV6_HDR_ECN_MASK
/**
* Process the pseudo-header checksum of an IPv6 header.
return (uint16_t)cksum;
}
+/* IPv6 fragmentation header size */
+#define RTE_IPV6_FRAG_HDR_SIZE 8
+
+/**
+ * Parse next IPv6 header extension
+ *
+ * This function checks if proto number is an IPv6 extensions and parses its
+ * data if so, providing information on next header and extension length.
+ *
+ * @param p
+ * Pointer to an extension raw data.
+ * @param proto
+ * Protocol number extracted from the "next header" field from
+ * the IPv6 header or the previous extension.
+ * @param ext_len
+ * Extension data length.
+ * @return
+ * next protocol number if proto is an IPv6 extension, -EINVAL otherwise
+ */
+__rte_experimental
+static inline int
+rte_ipv6_get_next_ext(uint8_t *p, int proto, size_t *ext_len)
+{
+ int next_proto;
+
+ switch (proto) {
+ case IPPROTO_AH:
+ next_proto = *p++;
+ *ext_len = (*p + 2) * sizeof(uint32_t);
+ break;
+
+ case IPPROTO_HOPOPTS:
+ case IPPROTO_ROUTING:
+ case IPPROTO_DSTOPTS:
+ next_proto = *p++;
+ *ext_len = (*p + 1) * sizeof(uint64_t);
+ break;
+
+ case IPPROTO_FRAGMENT:
+ next_proto = *p;
+ *ext_len = RTE_IPV6_FRAG_HDR_SIZE;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return next_proto;
+}
+
#ifdef __cplusplus
}
#endif
git.droids-corp.org / dpdk.git / blobdiff