DPDK 23.11.2
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rte_ip.h
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1/* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 1982, 1986, 1990, 1993
3 * The Regents of the University of California.
4 * Copyright(c) 2010-2014 Intel Corporation.
5 * Copyright(c) 2014 6WIND S.A.
6 * All rights reserved.
7 */
8
9#ifndef _RTE_IP_H_
10#define _RTE_IP_H_
11
18#include <stdint.h>
19
20#ifdef RTE_EXEC_ENV_WINDOWS
21#include <ws2tcpip.h>
22#else
23#include <sys/socket.h>
24#include <sys/types.h>
25#include <netinet/in.h>
26#include <arpa/inet.h>
27#include <netinet/ip.h>
28#include <netinet/ip6.h>
29#endif
30
31#include <rte_byteorder.h>
32#include <rte_mbuf.h>
33
34#ifdef __cplusplus
35extern "C" {
36#endif
37
42 __extension__
43 union {
44 uint8_t version_ihl;
45 struct {
46#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
47 uint8_t ihl:4;
48 uint8_t version:4;
49#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
50 uint8_t version:4;
51 uint8_t ihl:4;
52#endif
53 };
54 };
59 uint8_t time_to_live;
60 uint8_t next_proto_id;
65
67#define RTE_IPV4(a, b, c, d) ((uint32_t)(((a) & 0xff) << 24) | \
68 (((b) & 0xff) << 16) | \
69 (((c) & 0xff) << 8) | \
70 ((d) & 0xff))
71
73#define RTE_IPV4_MAX_PKT_LEN 65535
74
76#define RTE_IPV4_HDR_IHL_MASK (0x0f)
81#define RTE_IPV4_IHL_MULTIPLIER (4)
82
83/* Type of Service fields */
84#define RTE_IPV4_HDR_DSCP_MASK (0xfc)
85#define RTE_IPV4_HDR_ECN_MASK (0x03)
86#define RTE_IPV4_HDR_ECN_CE RTE_IPV4_HDR_ECN_MASK
87
88/* Fragment Offset * Flags. */
89#define RTE_IPV4_HDR_DF_SHIFT 14
90#define RTE_IPV4_HDR_MF_SHIFT 13
91#define RTE_IPV4_HDR_FO_SHIFT 3
92
93#define RTE_IPV4_HDR_DF_FLAG (1 << RTE_IPV4_HDR_DF_SHIFT)
94#define RTE_IPV4_HDR_MF_FLAG (1 << RTE_IPV4_HDR_MF_SHIFT)
95
96#define RTE_IPV4_HDR_OFFSET_MASK ((1 << RTE_IPV4_HDR_MF_SHIFT) - 1)
97
98#define RTE_IPV4_HDR_OFFSET_UNITS 8
99
100/* IPv4 options */
101#define RTE_IPV4_HDR_OPT_EOL 0
102#define RTE_IPV4_HDR_OPT_NOP 1
103#define RTE_IPV4_HDR_OPT_COPIED(v) ((v) & 0x80)
104#define RTE_IPV4_HDR_OPT_MAX_LEN 40
105
106/*
107 * IPv4 address types
108 */
109#define RTE_IPV4_ANY ((uint32_t)0x00000000)
110#define RTE_IPV4_LOOPBACK ((uint32_t)0x7f000001)
111#define RTE_IPV4_BROADCAST ((uint32_t)0xe0000000)
112#define RTE_IPV4_ALLHOSTS_GROUP ((uint32_t)0xe0000001)
113#define RTE_IPV4_ALLRTRS_GROUP ((uint32_t)0xe0000002)
114#define RTE_IPV4_MAX_LOCAL_GROUP ((uint32_t)0xe00000ff)
116/*
117 * IPv4 Multicast-related macros
118 */
119#define RTE_IPV4_MIN_MCAST \
120 RTE_IPV4(224, 0, 0, 0)
121#define RTE_IPV4_MAX_MCAST \
122 RTE_IPV4(239, 255, 255, 255)
124#define RTE_IS_IPV4_MCAST(x) \
125 ((x) >= RTE_IPV4_MIN_MCAST && (x) <= RTE_IPV4_MAX_MCAST)
128/* IPv4 default fields values */
129#define RTE_IPV4_MIN_IHL (0x5)
130#define RTE_IPV4_VHL_DEF ((IPVERSION << 4) | RTE_IPV4_MIN_IHL)
131
140static inline uint8_t
141rte_ipv4_hdr_len(const struct rte_ipv4_hdr *ipv4_hdr)
142{
143 return (uint8_t)((ipv4_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) *
145}
146
160static inline uint32_t
161__rte_raw_cksum(const void *buf, size_t len, uint32_t sum)
162{
163 const void *end;
164
165 for (end = RTE_PTR_ADD(buf, RTE_ALIGN_FLOOR(len, sizeof(uint16_t)));
166 buf != end; buf = RTE_PTR_ADD(buf, sizeof(uint16_t))) {
167 uint16_t v;
168
169 memcpy(&v, buf, sizeof(uint16_t));
170 sum += v;
171 }
172
173 /* if length is odd, keeping it byte order independent */
174 if (unlikely(len % 2)) {
175 uint16_t left = 0;
176
177 memcpy(&left, end, 1);
178 sum += left;
179 }
180
181 return sum;
182}
183
193static inline uint16_t
194__rte_raw_cksum_reduce(uint32_t sum)
195{
196 sum = ((sum & 0xffff0000) >> 16) + (sum & 0xffff);
197 sum = ((sum & 0xffff0000) >> 16) + (sum & 0xffff);
198 return (uint16_t)sum;
199}
200
211static inline uint16_t
212rte_raw_cksum(const void *buf, size_t len)
213{
214 uint32_t sum;
215
216 sum = __rte_raw_cksum(buf, len, 0);
217 return __rte_raw_cksum_reduce(sum);
218}
219
234static inline int
235rte_raw_cksum_mbuf(const struct rte_mbuf *m, uint32_t off, uint32_t len,
236 uint16_t *cksum)
237{
238 const struct rte_mbuf *seg;
239 const char *buf;
240 uint32_t sum, tmp;
241 uint32_t seglen, done;
242
243 /* easy case: all data in the first segment */
244 if (off + len <= rte_pktmbuf_data_len(m)) {
246 const char *, off), len);
247 return 0;
248 }
249
250 if (unlikely(off + len > rte_pktmbuf_pkt_len(m)))
251 return -1; /* invalid params, return a dummy value */
252
253 /* else browse the segment to find offset */
254 seglen = 0;
255 for (seg = m; seg != NULL; seg = seg->next) {
256 seglen = rte_pktmbuf_data_len(seg);
257 if (off < seglen)
258 break;
259 off -= seglen;
260 }
261 RTE_ASSERT(seg != NULL);
262 if (seg == NULL)
263 return -1;
264 seglen -= off;
265 buf = rte_pktmbuf_mtod_offset(seg, const char *, off);
266 if (seglen >= len) {
267 /* all in one segment */
268 *cksum = rte_raw_cksum(buf, len);
269 return 0;
270 }
271
272 /* hard case: process checksum of several segments */
273 sum = 0;
274 done = 0;
275 for (;;) {
276 tmp = __rte_raw_cksum(buf, seglen, 0);
277 if (done & 1)
278 tmp = rte_bswap16((uint16_t)tmp);
279 sum += tmp;
280 done += seglen;
281 if (done == len)
282 break;
283 seg = seg->next;
284 buf = rte_pktmbuf_mtod(seg, const char *);
285 seglen = rte_pktmbuf_data_len(seg);
286 if (seglen > len - done)
287 seglen = len - done;
288 }
289
290 *cksum = __rte_raw_cksum_reduce(sum);
291 return 0;
292}
293
304static inline uint16_t
305rte_ipv4_cksum(const struct rte_ipv4_hdr *ipv4_hdr)
306{
307 uint16_t cksum;
308 cksum = rte_raw_cksum(ipv4_hdr, rte_ipv4_hdr_len(ipv4_hdr));
309 return (uint16_t)~cksum;
310}
311
330static inline uint16_t
331rte_ipv4_phdr_cksum(const struct rte_ipv4_hdr *ipv4_hdr, uint64_t ol_flags)
332{
333 struct ipv4_psd_header {
334 uint32_t src_addr; /* IP address of source host. */
335 uint32_t dst_addr; /* IP address of destination host. */
336 uint8_t zero; /* zero. */
337 uint8_t proto; /* L4 protocol type. */
338 uint16_t len; /* L4 length. */
339 } psd_hdr;
340
341 uint32_t l3_len;
342
343 psd_hdr.src_addr = ipv4_hdr->src_addr;
344 psd_hdr.dst_addr = ipv4_hdr->dst_addr;
345 psd_hdr.zero = 0;
346 psd_hdr.proto = ipv4_hdr->next_proto_id;
347 if (ol_flags & (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG)) {
348 psd_hdr.len = 0;
349 } else {
350 l3_len = rte_be_to_cpu_16(ipv4_hdr->total_length);
351 psd_hdr.len = rte_cpu_to_be_16((uint16_t)(l3_len -
352 rte_ipv4_hdr_len(ipv4_hdr)));
353 }
354 return rte_raw_cksum(&psd_hdr, sizeof(psd_hdr));
355}
356
360static inline uint16_t
361__rte_ipv4_udptcp_cksum(const struct rte_ipv4_hdr *ipv4_hdr, const void *l4_hdr)
362{
363 uint32_t cksum;
364 uint32_t l3_len, l4_len;
365 uint8_t ip_hdr_len;
366
367 ip_hdr_len = rte_ipv4_hdr_len(ipv4_hdr);
368 l3_len = rte_be_to_cpu_16(ipv4_hdr->total_length);
369 if (l3_len < ip_hdr_len)
370 return 0;
371
372 l4_len = l3_len - ip_hdr_len;
373
374 cksum = rte_raw_cksum(l4_hdr, l4_len);
375 cksum += rte_ipv4_phdr_cksum(ipv4_hdr, 0);
376
377 cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
378
379 return (uint16_t)cksum;
380}
381
394static inline uint16_t
395rte_ipv4_udptcp_cksum(const struct rte_ipv4_hdr *ipv4_hdr, const void *l4_hdr)
396{
397 uint16_t cksum = __rte_ipv4_udptcp_cksum(ipv4_hdr, l4_hdr);
398
399 cksum = ~cksum;
400
401 /*
402 * Per RFC 768: If the computed checksum is zero for UDP,
403 * it is transmitted as all ones
404 * (the equivalent in one's complement arithmetic).
405 */
406 if (cksum == 0 && ipv4_hdr->next_proto_id == IPPROTO_UDP)
407 cksum = 0xffff;
408
409 return cksum;
410}
411
415static inline uint16_t
416__rte_ipv4_udptcp_cksum_mbuf(const struct rte_mbuf *m,
417 const struct rte_ipv4_hdr *ipv4_hdr,
418 uint16_t l4_off)
419{
420 uint16_t raw_cksum;
421 uint32_t cksum;
422 uint16_t len;
423
424 if (unlikely(l4_off > m->pkt_len))
425 return 0; /* invalid params, return a dummy value */
426
427 len = rte_be_to_cpu_16(ipv4_hdr->total_length) - (uint16_t)rte_ipv4_hdr_len(ipv4_hdr);
428
429 if (rte_raw_cksum_mbuf(m, l4_off, len, &raw_cksum))
430 return 0;
431
432 cksum = raw_cksum + rte_ipv4_phdr_cksum(ipv4_hdr, 0);
433
434 cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
435
436 return (uint16_t)cksum;
437}
438
451static inline uint16_t
453 const struct rte_ipv4_hdr *ipv4_hdr, uint16_t l4_off)
454{
455 uint16_t cksum = __rte_ipv4_udptcp_cksum_mbuf(m, ipv4_hdr, l4_off);
456
457 cksum = ~cksum;
458
459 /*
460 * Per RFC 768: If the computed checksum is zero for UDP,
461 * it is transmitted as all ones
462 * (the equivalent in one's complement arithmetic).
463 */
464 if (cksum == 0 && ipv4_hdr->next_proto_id == IPPROTO_UDP)
465 cksum = 0xffff;
466
467 return cksum;
468}
469
483static inline int
485 const void *l4_hdr)
486{
487 uint16_t cksum = __rte_ipv4_udptcp_cksum(ipv4_hdr, l4_hdr);
488
489 if (cksum != 0xffff)
490 return -1;
491
492 return 0;
493}
494
510static inline int
512 const struct rte_ipv4_hdr *ipv4_hdr,
513 uint16_t l4_off)
514{
515 uint16_t cksum = __rte_ipv4_udptcp_cksum_mbuf(m, ipv4_hdr, l4_off);
516
517 if (cksum != 0xffff)
518 return -1;
519
520 return 0;
521}
522
534
535/* IPv6 routing extension type definition. */
536#define RTE_IPV6_SRCRT_TYPE_4 4
537
542 uint8_t next_hdr;
543 uint8_t hdr_len;
544 uint8_t type;
546 __extension__
547 union {
549 struct {
550 uint8_t last_entry;
551 uint8_t flag;
553 };
554 };
555 /* Next are 128-bit IPv6 address fields to describe segments. */
557
558/* IPv6 vtc_flow: IPv / TC / flow_label */
559#define RTE_IPV6_HDR_FL_SHIFT 0
560#define RTE_IPV6_HDR_TC_SHIFT 20
561#define RTE_IPV6_HDR_FL_MASK ((1u << RTE_IPV6_HDR_TC_SHIFT) - 1)
562#define RTE_IPV6_HDR_TC_MASK (0xff << RTE_IPV6_HDR_TC_SHIFT)
563#define RTE_IPV6_HDR_DSCP_MASK (0xfc << RTE_IPV6_HDR_TC_SHIFT)
564#define RTE_IPV6_HDR_ECN_MASK (0x03 << RTE_IPV6_HDR_TC_SHIFT)
565#define RTE_IPV6_HDR_ECN_CE RTE_IPV6_HDR_ECN_MASK
566
567#define RTE_IPV6_MIN_MTU 1280
585static inline uint16_t
586rte_ipv6_phdr_cksum(const struct rte_ipv6_hdr *ipv6_hdr, uint64_t ol_flags)
587{
588 uint32_t sum;
589 struct {
590 rte_be32_t len; /* L4 length. */
591 rte_be32_t proto; /* L4 protocol - top 3 bytes must be zero */
592 } psd_hdr;
593
594 psd_hdr.proto = (uint32_t)(ipv6_hdr->proto << 24);
595 if (ol_flags & (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG)) {
596 psd_hdr.len = 0;
597 } else {
598 psd_hdr.len = ipv6_hdr->payload_len;
599 }
600
601 sum = __rte_raw_cksum(ipv6_hdr->src_addr,
602 sizeof(ipv6_hdr->src_addr) + sizeof(ipv6_hdr->dst_addr),
603 0);
604 sum = __rte_raw_cksum(&psd_hdr, sizeof(psd_hdr), sum);
605 return __rte_raw_cksum_reduce(sum);
606}
607
611static inline uint16_t
612__rte_ipv6_udptcp_cksum(const struct rte_ipv6_hdr *ipv6_hdr, const void *l4_hdr)
613{
614 uint32_t cksum;
615 uint32_t l4_len;
616
617 l4_len = rte_be_to_cpu_16(ipv6_hdr->payload_len);
618
619 cksum = rte_raw_cksum(l4_hdr, l4_len);
620 cksum += rte_ipv6_phdr_cksum(ipv6_hdr, 0);
621
622 cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
623
624 return (uint16_t)cksum;
625}
626
640static inline uint16_t
641rte_ipv6_udptcp_cksum(const struct rte_ipv6_hdr *ipv6_hdr, const void *l4_hdr)
642{
643 uint16_t cksum = __rte_ipv6_udptcp_cksum(ipv6_hdr, l4_hdr);
644
645 cksum = ~cksum;
646
647 /*
648 * Per RFC 768: If the computed checksum is zero for UDP,
649 * it is transmitted as all ones
650 * (the equivalent in one's complement arithmetic).
651 */
652 if (cksum == 0 && ipv6_hdr->proto == IPPROTO_UDP)
653 cksum = 0xffff;
654
655 return cksum;
656}
657
661static inline uint16_t
662__rte_ipv6_udptcp_cksum_mbuf(const struct rte_mbuf *m,
663 const struct rte_ipv6_hdr *ipv6_hdr,
664 uint16_t l4_off)
665{
666 uint16_t raw_cksum;
667 uint32_t cksum;
668
669 if (unlikely(l4_off > m->pkt_len))
670 return 0; /* invalid params, return a dummy value */
671
672 if (rte_raw_cksum_mbuf(m, l4_off, rte_be_to_cpu_16(ipv6_hdr->payload_len), &raw_cksum))
673 return 0;
674
675 cksum = raw_cksum + rte_ipv6_phdr_cksum(ipv6_hdr, 0);
676
677 cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
678
679 return (uint16_t)cksum;
680}
681
697static inline uint16_t
699 const struct rte_ipv6_hdr *ipv6_hdr, uint16_t l4_off)
700{
701 uint16_t cksum = __rte_ipv6_udptcp_cksum_mbuf(m, ipv6_hdr, l4_off);
702
703 cksum = ~cksum;
704
705 /*
706 * Per RFC 768: If the computed checksum is zero for UDP,
707 * it is transmitted as all ones
708 * (the equivalent in one's complement arithmetic).
709 */
710 if (cksum == 0 && ipv6_hdr->proto == IPPROTO_UDP)
711 cksum = 0xffff;
712
713 return cksum;
714}
715
730static inline int
732 const void *l4_hdr)
733{
734 uint16_t cksum = __rte_ipv6_udptcp_cksum(ipv6_hdr, l4_hdr);
735
736 if (cksum != 0xffff)
737 return -1;
738
739 return 0;
740}
741
758static inline int
760 const struct rte_ipv6_hdr *ipv6_hdr,
761 uint16_t l4_off)
762{
763 uint16_t cksum = __rte_ipv6_udptcp_cksum_mbuf(m, ipv6_hdr, l4_off);
764
765 if (cksum != 0xffff)
766 return -1;
767
768 return 0;
769}
770
772#define RTE_IPV6_EHDR_MF_SHIFT 0
773#define RTE_IPV6_EHDR_MF_MASK 1
774#define RTE_IPV6_EHDR_FO_SHIFT 3
775#define RTE_IPV6_EHDR_FO_MASK (~((1 << RTE_IPV6_EHDR_FO_SHIFT) - 1))
776#define RTE_IPV6_EHDR_FO_ALIGN (1 << RTE_IPV6_EHDR_FO_SHIFT)
777
778#define RTE_IPV6_FRAG_USED_MASK (RTE_IPV6_EHDR_MF_MASK | RTE_IPV6_EHDR_FO_MASK)
779
780#define RTE_IPV6_GET_MF(x) ((x) & RTE_IPV6_EHDR_MF_MASK)
781#define RTE_IPV6_GET_FO(x) ((x) >> RTE_IPV6_EHDR_FO_SHIFT)
782
783#define RTE_IPV6_SET_FRAG_DATA(fo, mf) \
784 (((fo) & RTE_IPV6_EHDR_FO_MASK) | ((mf) & RTE_IPV6_EHDR_MF_MASK))
785
786struct rte_ipv6_fragment_ext {
787 uint8_t next_header;
788 uint8_t reserved;
789 rte_be16_t frag_data;
790 rte_be32_t id;
792
793/* IPv6 fragment extension header size */
794#define RTE_IPV6_FRAG_HDR_SIZE sizeof(struct rte_ipv6_fragment_ext)
795
812static inline int
813rte_ipv6_get_next_ext(const uint8_t *p, int proto, size_t *ext_len)
814{
815 int next_proto;
816
817 switch (proto) {
818 case IPPROTO_AH:
819 next_proto = *p++;
820 *ext_len = (*p + 2) * sizeof(uint32_t);
821 break;
822
823 case IPPROTO_HOPOPTS:
824 case IPPROTO_ROUTING:
825 case IPPROTO_DSTOPTS:
826 next_proto = *p++;
827 *ext_len = (*p + 1) * sizeof(uint64_t);
828 break;
829
830 case IPPROTO_FRAGMENT:
831 next_proto = *p;
832 *ext_len = RTE_IPV6_FRAG_HDR_SIZE;
833 break;
834
835 default:
836 return -EINVAL;
837 }
838
839 return next_proto;
840}
841
842#ifdef __cplusplus
843}
844#endif
845
846#endif /* _RTE_IP_H_ */
#define unlikely(x)
static uint16_t rte_be_to_cpu_16(rte_be16_t x)
static rte_be16_t rte_cpu_to_be_16(uint16_t x)
uint32_t rte_be32_t
static uint16_t rte_bswap16(uint16_t _x)
uint16_t rte_be16_t
#define __rte_packed
Definition rte_common.h:89
#define RTE_ALIGN_FLOOR(val, align)
Definition rte_common.h:409
#define RTE_PTR_ADD(ptr, x)
Definition rte_common.h:371
struct rte_ether_addr src_addr
Definition rte_ether.h:1
struct rte_ether_addr dst_addr
Definition rte_ether.h:0
static uint16_t rte_ipv4_phdr_cksum(const struct rte_ipv4_hdr *ipv4_hdr, uint64_t ol_flags)
Definition rte_ip.h:331
static uint16_t rte_ipv6_phdr_cksum(const struct rte_ipv6_hdr *ipv6_hdr, uint64_t ol_flags)
Definition rte_ip.h:586
static uint16_t rte_raw_cksum(const void *buf, size_t len)
Definition rte_ip.h:212
static uint16_t rte_ipv6_udptcp_cksum(const struct rte_ipv6_hdr *ipv6_hdr, const void *l4_hdr)
Definition rte_ip.h:641
static int rte_ipv4_udptcp_cksum_mbuf_verify(const struct rte_mbuf *m, const struct rte_ipv4_hdr *ipv4_hdr, uint16_t l4_off)
Definition rte_ip.h:511
static int rte_ipv6_udptcp_cksum_mbuf_verify(const struct rte_mbuf *m, const struct rte_ipv6_hdr *ipv6_hdr, uint16_t l4_off)
Definition rte_ip.h:759
static int rte_ipv6_get_next_ext(const uint8_t *p, int proto, size_t *ext_len)
Definition rte_ip.h:813
static int rte_ipv6_udptcp_cksum_verify(const struct rte_ipv6_hdr *ipv6_hdr, const void *l4_hdr)
Definition rte_ip.h:731
static uint16_t rte_ipv4_udptcp_cksum(const struct rte_ipv4_hdr *ipv4_hdr, const void *l4_hdr)
Definition rte_ip.h:395
static uint16_t rte_ipv4_cksum(const struct rte_ipv4_hdr *ipv4_hdr)
Definition rte_ip.h:305
static uint16_t rte_ipv6_udptcp_cksum_mbuf(const struct rte_mbuf *m, const struct rte_ipv6_hdr *ipv6_hdr, uint16_t l4_off)
Definition rte_ip.h:698
static int rte_raw_cksum_mbuf(const struct rte_mbuf *m, uint32_t off, uint32_t len, uint16_t *cksum)
Definition rte_ip.h:235
static uint8_t rte_ipv4_hdr_len(const struct rte_ipv4_hdr *ipv4_hdr)
Definition rte_ip.h:141
static uint16_t rte_ipv4_udptcp_cksum_mbuf(const struct rte_mbuf *m, const struct rte_ipv4_hdr *ipv4_hdr, uint16_t l4_off)
Definition rte_ip.h:452
#define RTE_IPV4_HDR_IHL_MASK
Definition rte_ip.h:76
#define RTE_IPV4_IHL_MULTIPLIER
Definition rte_ip.h:81
static int rte_ipv4_udptcp_cksum_verify(const struct rte_ipv4_hdr *ipv4_hdr, const void *l4_hdr)
Definition rte_ip.h:484
#define rte_pktmbuf_data_len(m)
Definition rte_mbuf.h:1568
#define rte_pktmbuf_pkt_len(m)
Definition rte_mbuf.h:1558
#define RTE_MBUF_F_TX_UDP_SEG
#define rte_pktmbuf_mtod(m, t)
#define RTE_MBUF_F_TX_TCP_SEG
#define rte_pktmbuf_mtod_offset(m, t, o)
uint8_t time_to_live
Definition rte_ip.h:59
uint8_t version_ihl
Definition rte_ip.h:44
rte_be16_t hdr_checksum
Definition rte_ip.h:61
uint8_t ihl
Definition rte_ip.h:47
uint8_t next_proto_id
Definition rte_ip.h:60
rte_be32_t dst_addr
Definition rte_ip.h:63
rte_be32_t src_addr
Definition rte_ip.h:62
uint8_t version
Definition rte_ip.h:48
uint8_t type_of_service
Definition rte_ip.h:55
rte_be16_t total_length
Definition rte_ip.h:56
rte_be16_t fragment_offset
Definition rte_ip.h:58
rte_be16_t packet_id
Definition rte_ip.h:57
uint8_t hop_limits
Definition rte_ip.h:530
uint8_t dst_addr[16]
Definition rte_ip.h:532
rte_be32_t vtc_flow
Definition rte_ip.h:527
uint8_t src_addr[16]
Definition rte_ip.h:531
rte_be16_t payload_len
Definition rte_ip.h:528
uint8_t proto
Definition rte_ip.h:529
rte_be32_t flags
Definition rte_ip.h:548
uint8_t segments_left
Definition rte_ip.h:545
rte_be16_t tag
Definition rte_ip.h:552
uint64_t ol_flags
uint32_t pkt_len
struct rte_mbuf * next