-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * 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.
- * * Neither the name of Intel Corporation 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 THE COPYRIGHT HOLDERS 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 COPYRIGHT
- * OWNER 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.
- *
- */
-
/*
- * Copyright (c) 1982, 1986, 1990, 1993
- * The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University 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 THE REGENTS 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 REGENTS 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.
- *
- * @(#)in.h 8.3 (Berkeley) 1/3/94
- * $FreeBSD: src/sys/netinet/in.h,v 1.82 2003/10/25 09:37:10 ume Exp $
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright(c) 1982, 1986, 1990, 1993
+ * The Regents of the University of California.
+ * Copyright(c) 2010-2014 Intel Corporation.
+ * Copyright(c) 2014 6WIND S.A.
+ * All rights reserved.
*/
#ifndef _RTE_IP_H_
*/
#include <stdint.h>
+#include <netinet/in.h>
+
+#include <rte_byteorder.h>
+#include <rte_mbuf.h>
#ifdef __cplusplus
extern "C" {
(((c) & 0xff) << 8) | \
((d) & 0xff))
-/* IPv4 protocols */
-#define IPPROTO_IP 0 /**< dummy for IP */
-#define IPPROTO_HOPOPTS 0 /**< IP6 hop-by-hop options */
-#define IPPROTO_ICMP 1 /**< control message protocol */
-#define IPPROTO_IGMP 2 /**< group mgmt protocol */
-#define IPPROTO_GGP 3 /**< gateway^2 (deprecated) */
-#define IPPROTO_IPV4 4 /**< IPv4 encapsulation */
-#define IPPROTO_TCP 6 /**< tcp */
-#define IPPROTO_ST 7 /**< Stream protocol II */
-#define IPPROTO_EGP 8 /**< exterior gateway protocol */
-#define IPPROTO_PIGP 9 /**< private interior gateway */
-#define IPPROTO_RCCMON 10 /**< BBN RCC Monitoring */
-#define IPPROTO_NVPII 11 /**< network voice protocol*/
-#define IPPROTO_PUP 12 /**< pup */
-#define IPPROTO_ARGUS 13 /**< Argus */
-#define IPPROTO_EMCON 14 /**< EMCON */
-#define IPPROTO_XNET 15 /**< Cross Net Debugger */
-#define IPPROTO_CHAOS 16 /**< Chaos*/
-#define IPPROTO_UDP 17 /**< user datagram protocol */
-#define IPPROTO_MUX 18 /**< Multiplexing */
-#define IPPROTO_MEAS 19 /**< DCN Measurement Subsystems */
-#define IPPROTO_HMP 20 /**< Host Monitoring */
-#define IPPROTO_PRM 21 /**< Packet Radio Measurement */
-#define IPPROTO_IDP 22 /**< xns idp */
-#define IPPROTO_TRUNK1 23 /**< Trunk-1 */
-#define IPPROTO_TRUNK2 24 /**< Trunk-2 */
-#define IPPROTO_LEAF1 25 /**< Leaf-1 */
-#define IPPROTO_LEAF2 26 /**< Leaf-2 */
-#define IPPROTO_RDP 27 /**< Reliable Data */
-#define IPPROTO_IRTP 28 /**< Reliable Transaction */
-#define IPPROTO_TP 29 /**< tp-4 w/ class negotiation */
-#define IPPROTO_BLT 30 /**< Bulk Data Transfer */
-#define IPPROTO_NSP 31 /**< Network Services */
-#define IPPROTO_INP 32 /**< Merit Internodal */
-#define IPPROTO_SEP 33 /**< Sequential Exchange */
-#define IPPROTO_3PC 34 /**< Third Party Connect */
-#define IPPROTO_IDPR 35 /**< InterDomain Policy Routing */
-#define IPPROTO_XTP 36 /**< XTP */
-#define IPPROTO_DDP 37 /**< Datagram Delivery */
-#define IPPROTO_CMTP 38 /**< Control Message Transport */
-#define IPPROTO_TPXX 39 /**< TP++ Transport */
-#define IPPROTO_IL 40 /**< IL transport protocol */
-#define IPPROTO_IPV6 41 /**< IP6 header */
-#define IPPROTO_SDRP 42 /**< Source Demand Routing */
-#define IPPROTO_ROUTING 43 /**< IP6 routing header */
-#define IPPROTO_FRAGMENT 44 /**< IP6 fragmentation header */
-#define IPPROTO_IDRP 45 /**< InterDomain Routing*/
-#define IPPROTO_RSVP 46 /**< resource reservation */
-#define IPPROTO_GRE 47 /**< General Routing Encap. */
-#define IPPROTO_MHRP 48 /**< Mobile Host Routing */
-#define IPPROTO_BHA 49 /**< BHA */
-#define IPPROTO_ESP 50 /**< IP6 Encap Sec. Payload */
-#define IPPROTO_AH 51 /**< IP6 Auth Header */
-#define IPPROTO_INLSP 52 /**< Integ. Net Layer Security */
-#define IPPROTO_SWIPE 53 /**< IP with encryption */
-#define IPPROTO_NHRP 54 /**< Next Hop Resolution */
-/* 55-57: Unassigned */
-#define IPPROTO_ICMPV6 58 /**< ICMP6 */
-#define IPPROTO_NONE 59 /**< IP6 no next header */
-#define IPPROTO_DSTOPTS 60 /**< IP6 destination option */
-#define IPPROTO_AHIP 61 /**< any host internal protocol */
-#define IPPROTO_CFTP 62 /**< CFTP */
-#define IPPROTO_HELLO 63 /**< "hello" routing protocol */
-#define IPPROTO_SATEXPAK 64 /**< SATNET/Backroom EXPAK */
-#define IPPROTO_KRYPTOLAN 65 /**< Kryptolan */
-#define IPPROTO_RVD 66 /**< Remote Virtual Disk */
-#define IPPROTO_IPPC 67 /**< Pluribus Packet Core */
-#define IPPROTO_ADFS 68 /**< Any distributed FS */
-#define IPPROTO_SATMON 69 /**< Satnet Monitoring */
-#define IPPROTO_VISA 70 /**< VISA Protocol */
-#define IPPROTO_IPCV 71 /**< Packet Core Utility */
-#define IPPROTO_CPNX 72 /**< Comp. Prot. Net. Executive */
-#define IPPROTO_CPHB 73 /**< Comp. Prot. HeartBeat */
-#define IPPROTO_WSN 74 /**< Wang Span Network */
-#define IPPROTO_PVP 75 /**< Packet Video Protocol */
-#define IPPROTO_BRSATMON 76 /**< BackRoom SATNET Monitoring */
-#define IPPROTO_ND 77 /**< Sun net disk proto (temp.) */
-#define IPPROTO_WBMON 78 /**< WIDEBAND Monitoring */
-#define IPPROTO_WBEXPAK 79 /**< WIDEBAND EXPAK */
-#define IPPROTO_EON 80 /**< ISO cnlp */
-#define IPPROTO_VMTP 81 /**< VMTP */
-#define IPPROTO_SVMTP 82 /**< Secure VMTP */
-#define IPPROTO_VINES 83 /**< Banyon VINES */
-#define IPPROTO_TTP 84 /**< TTP */
-#define IPPROTO_IGP 85 /**< NSFNET-IGP */
-#define IPPROTO_DGP 86 /**< dissimilar gateway prot. */
-#define IPPROTO_TCF 87 /**< TCF */
-#define IPPROTO_IGRP 88 /**< Cisco/GXS IGRP */
-#define IPPROTO_OSPFIGP 89 /**< OSPFIGP */
-#define IPPROTO_SRPC 90 /**< Strite RPC protocol */
-#define IPPROTO_LARP 91 /**< Locus Address Resoloution */
-#define IPPROTO_MTP 92 /**< Multicast Transport */
-#define IPPROTO_AX25 93 /**< AX.25 Frames */
-#define IPPROTO_IPEIP 94 /**< IP encapsulated in IP */
-#define IPPROTO_MICP 95 /**< Mobile Int.ing control */
-#define IPPROTO_SCCSP 96 /**< Semaphore Comm. security */
-#define IPPROTO_ETHERIP 97 /**< Ethernet IP encapsulation */
-#define IPPROTO_ENCAP 98 /**< encapsulation header */
-#define IPPROTO_APES 99 /**< any private encr. scheme */
-#define IPPROTO_GMTP 100 /**< GMTP */
-#define IPPROTO_IPCOMP 108 /**< payload compression (IPComp) */
-/* 101-254: Partly Unassigned */
-#define IPPROTO_PIM 103 /**< Protocol Independent Mcast */
-#define IPPROTO_PGM 113 /**< PGM */
-#define IPPROTO_SCTP 132 /**< Stream Control Transport Protocol */
-/* 255: Reserved */
-/* BSD Private, local use, namespace incursion */
-#define IPPROTO_DIVERT 254 /**< divert pseudo-protocol */
-#define IPPROTO_RAW 255 /**< raw IP packet */
-#define IPPROTO_MAX 256 /**< maximum protocol number */
+/** Maximal IPv4 packet length (including a header) */
+#define IPV4_MAX_PKT_LEN 65535
+
+/** Internet header length mask for version_ihl field */
+#define 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)
+
+/* Fragment Offset * Flags. */
+#define IPV4_HDR_DF_SHIFT 14
+#define IPV4_HDR_MF_SHIFT 13
+#define 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 IPV4_HDR_OFFSET_MASK ((1 << IPV4_HDR_MF_SHIFT) - 1)
+
+#define IPV4_HDR_OFFSET_UNITS 8
/*
* IPv4 address types
#define IS_IPV4_MCAST(x) \
((x) >= IPV4_MIN_MCAST && (x) <= IPV4_MAX_MCAST) /**< check if IPv4 address is multicast */
+/**
+ * @internal Calculate a sum of all words in the buffer.
+ * Helper routine for the rte_raw_cksum().
+ *
+ * @param buf
+ * Pointer to the buffer.
+ * @param len
+ * Length of the buffer.
+ * @param sum
+ * Initial value of the sum.
+ * @return
+ * sum += Sum of all words in the buffer.
+ */
+static inline uint32_t
+__rte_raw_cksum(const void *buf, size_t len, uint32_t sum)
+{
+ /* workaround gcc strict-aliasing warning */
+ uintptr_t ptr = (uintptr_t)buf;
+ typedef uint16_t __attribute__((__may_alias__)) u16_p;
+ const u16_p *u16 = (const u16_p *)ptr;
+
+ while (len >= (sizeof(*u16) * 4)) {
+ sum += u16[0];
+ sum += u16[1];
+ sum += u16[2];
+ sum += u16[3];
+ len -= sizeof(*u16) * 4;
+ u16 += 4;
+ }
+ while (len >= sizeof(*u16)) {
+ sum += *u16;
+ len -= sizeof(*u16);
+ u16 += 1;
+ }
+
+ /* if length is in odd bytes */
+ if (len == 1)
+ sum += *((const uint8_t *)u16);
+
+ return sum;
+}
+
+/**
+ * @internal Reduce a sum to the non-complemented checksum.
+ * Helper routine for the rte_raw_cksum().
+ *
+ * @param sum
+ * Value of the sum.
+ * @return
+ * The non-complemented checksum.
+ */
+static inline uint16_t
+__rte_raw_cksum_reduce(uint32_t sum)
+{
+ sum = ((sum & 0xffff0000) >> 16) + (sum & 0xffff);
+ sum = ((sum & 0xffff0000) >> 16) + (sum & 0xffff);
+ return (uint16_t)sum;
+}
+
+/**
+ * Process the non-complemented checksum of a buffer.
+ *
+ * @param buf
+ * Pointer to the buffer.
+ * @param len
+ * Length of the buffer.
+ * @return
+ * The non-complemented checksum.
+ */
+static inline uint16_t
+rte_raw_cksum(const void *buf, size_t len)
+{
+ uint32_t sum;
+
+ sum = __rte_raw_cksum(buf, len, 0);
+ return __rte_raw_cksum_reduce(sum);
+}
+
+/**
+ * Compute the raw (non complemented) checksum of a packet.
+ *
+ * @param m
+ * The pointer to the mbuf.
+ * @param off
+ * The offset in bytes to start the checksum.
+ * @param len
+ * The length in bytes of the data to checksum.
+ * @param cksum
+ * A pointer to the checksum, filled on success.
+ * @return
+ * 0 on success, -1 on error (bad length or offset).
+ */
+static inline int
+rte_raw_cksum_mbuf(const struct rte_mbuf *m, uint32_t off, uint32_t len,
+ uint16_t *cksum)
+{
+ const struct rte_mbuf *seg;
+ const char *buf;
+ uint32_t sum, tmp;
+ uint32_t seglen, done;
+
+ /* easy case: all data in the first segment */
+ if (off + len <= rte_pktmbuf_data_len(m)) {
+ *cksum = rte_raw_cksum(rte_pktmbuf_mtod_offset(m,
+ const char *, off), len);
+ return 0;
+ }
+
+ if (unlikely(off + len > rte_pktmbuf_pkt_len(m)))
+ return -1; /* invalid params, return a dummy value */
+
+ /* else browse the segment to find offset */
+ seglen = 0;
+ for (seg = m; seg != NULL; seg = seg->next) {
+ seglen = rte_pktmbuf_data_len(seg);
+ if (off < seglen)
+ break;
+ off -= seglen;
+ }
+ seglen -= off;
+ buf = rte_pktmbuf_mtod_offset(seg, const char *, off);
+ if (seglen >= len) {
+ /* all in one segment */
+ *cksum = rte_raw_cksum(buf, len);
+ return 0;
+ }
+
+ /* hard case: process checksum of several segments */
+ sum = 0;
+ done = 0;
+ for (;;) {
+ tmp = __rte_raw_cksum(buf, seglen, 0);
+ if (done & 1)
+ tmp = rte_bswap16(tmp);
+ sum += tmp;
+ done += seglen;
+ if (done == len)
+ break;
+ seg = seg->next;
+ buf = rte_pktmbuf_mtod(seg, const char *);
+ seglen = rte_pktmbuf_data_len(seg);
+ if (seglen > len - done)
+ seglen = len - done;
+ }
+
+ *cksum = __rte_raw_cksum_reduce(sum);
+ return 0;
+}
+
+/**
+ * Process the IPv4 checksum of an IPv4 header.
+ *
+ * The checksum field must be set to 0 by the caller.
+ *
+ * @param ipv4_hdr
+ * The pointer to the contiguous IPv4 header.
+ * @return
+ * The complemented checksum to set in the IP packet.
+ */
+static inline uint16_t
+rte_ipv4_cksum(const struct ipv4_hdr *ipv4_hdr)
+{
+ uint16_t cksum;
+ cksum = rte_raw_cksum(ipv4_hdr, sizeof(struct ipv4_hdr));
+ return (cksum == 0xffff) ? cksum : ~cksum;
+}
+
+/**
+ * Process the pseudo-header checksum of an IPv4 header.
+ *
+ * The checksum field must be set to 0 by the caller.
+ *
+ * Depending on the ol_flags, the pseudo-header checksum expected by the
+ * drivers is not the same. For instance, when TSO is enabled, the IP
+ * payload length must not be included in the packet.
+ *
+ * When ol_flags is 0, it computes the standard pseudo-header checksum.
+ *
+ * @param ipv4_hdr
+ * The pointer to the contiguous IPv4 header.
+ * @param ol_flags
+ * The ol_flags of the associated mbuf.
+ * @return
+ * The non-complemented checksum to set in the L4 header.
+ */
+static inline uint16_t
+rte_ipv4_phdr_cksum(const struct ipv4_hdr *ipv4_hdr, uint64_t ol_flags)
+{
+ struct ipv4_psd_header {
+ uint32_t src_addr; /* IP address of source host. */
+ uint32_t dst_addr; /* IP address of destination host. */
+ uint8_t zero; /* zero. */
+ uint8_t proto; /* L4 protocol type. */
+ uint16_t len; /* L4 length. */
+ } psd_hdr;
+
+ psd_hdr.src_addr = ipv4_hdr->src_addr;
+ psd_hdr.dst_addr = ipv4_hdr->dst_addr;
+ psd_hdr.zero = 0;
+ psd_hdr.proto = ipv4_hdr->next_proto_id;
+ if (ol_flags & PKT_TX_TCP_SEG) {
+ psd_hdr.len = 0;
+ } else {
+ psd_hdr.len = rte_cpu_to_be_16(
+ (uint16_t)(rte_be_to_cpu_16(ipv4_hdr->total_length)
+ - sizeof(struct ipv4_hdr)));
+ }
+ return rte_raw_cksum(&psd_hdr, sizeof(psd_hdr));
+}
+
+/**
+ * Process the IPv4 UDP or TCP checksum.
+ *
+ * The IPv4 header should not contains options. The IP and layer 4
+ * checksum must be set to 0 in the packet by the caller.
+ *
+ * @param ipv4_hdr
+ * The pointer to the contiguous IPv4 header.
+ * @param l4_hdr
+ * The pointer to the beginning of the L4 header.
+ * @return
+ * The complemented checksum to set in the IP packet.
+ */
+static inline uint16_t
+rte_ipv4_udptcp_cksum(const struct ipv4_hdr *ipv4_hdr, const void *l4_hdr)
+{
+ uint32_t cksum;
+ uint32_t l4_len;
+
+ l4_len = rte_be_to_cpu_16(ipv4_hdr->total_length) -
+ sizeof(struct ipv4_hdr);
+
+ cksum = rte_raw_cksum(l4_hdr, l4_len);
+ cksum += rte_ipv4_phdr_cksum(ipv4_hdr, 0);
+
+ cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
+ cksum = (~cksum) & 0xffff;
+ if (cksum == 0)
+ cksum = 0xffff;
+
+ return cksum;
+}
+
/**
* IPv6 Header
*/
uint8_t dst_addr[16]; /**< IP address of destination host(s). */
} __attribute__((__packed__));
+/**
+ * Process the pseudo-header checksum of an IPv6 header.
+ *
+ * Depending on the ol_flags, the pseudo-header checksum expected by the
+ * drivers is not the same. For instance, when TSO is enabled, the IPv6
+ * payload length must not be included in the packet.
+ *
+ * When ol_flags is 0, it computes the standard pseudo-header checksum.
+ *
+ * @param ipv6_hdr
+ * The pointer to the contiguous IPv6 header.
+ * @param ol_flags
+ * The ol_flags of the associated mbuf.
+ * @return
+ * The non-complemented checksum to set in the L4 header.
+ */
+static inline uint16_t
+rte_ipv6_phdr_cksum(const struct ipv6_hdr *ipv6_hdr, uint64_t ol_flags)
+{
+ uint32_t sum;
+ struct {
+ uint32_t len; /* L4 length. */
+ uint32_t proto; /* L4 protocol - top 3 bytes must be zero */
+ } psd_hdr;
+
+ psd_hdr.proto = (ipv6_hdr->proto << 24);
+ if (ol_flags & PKT_TX_TCP_SEG) {
+ psd_hdr.len = 0;
+ } else {
+ psd_hdr.len = ipv6_hdr->payload_len;
+ }
+
+ sum = __rte_raw_cksum(ipv6_hdr->src_addr,
+ sizeof(ipv6_hdr->src_addr) + sizeof(ipv6_hdr->dst_addr),
+ 0);
+ sum = __rte_raw_cksum(&psd_hdr, sizeof(psd_hdr), sum);
+ return __rte_raw_cksum_reduce(sum);
+}
+
+/**
+ * Process the IPv6 UDP or TCP checksum.
+ *
+ * The IPv4 header should not contains options. The layer 4 checksum
+ * must be set to 0 in the packet by the caller.
+ *
+ * @param ipv6_hdr
+ * The pointer to the contiguous IPv6 header.
+ * @param l4_hdr
+ * The pointer to the beginning of the L4 header.
+ * @return
+ * The complemented checksum to set in the IP packet.
+ */
+static inline uint16_t
+rte_ipv6_udptcp_cksum(const struct ipv6_hdr *ipv6_hdr, const void *l4_hdr)
+{
+ uint32_t cksum;
+ uint32_t l4_len;
+
+ l4_len = rte_be_to_cpu_16(ipv6_hdr->payload_len);
+
+ cksum = rte_raw_cksum(l4_hdr, l4_len);
+ cksum += rte_ipv6_phdr_cksum(ipv6_hdr, 0);
+
+ cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
+ cksum = (~cksum) & 0xffff;
+ if (cksum == 0)
+ cksum = 0xffff;
+
+ return cksum;
+}
+
#ifdef __cplusplus
}
#endif
git.droids-corp.org / dpdk.git / blobdiff