DPDK 23.11.0
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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
423 if (l4_off > m->pkt_len)
424 return 0;
425
426 if (rte_raw_cksum_mbuf(m, l4_off, m->pkt_len - l4_off, &raw_cksum))
427 return 0;
428
429 cksum = raw_cksum + rte_ipv4_phdr_cksum(ipv4_hdr, 0);
430
431 cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
432
433 return (uint16_t)cksum;
434}
435
448static inline uint16_t
450 const struct rte_ipv4_hdr *ipv4_hdr, uint16_t l4_off)
451{
452 uint16_t cksum = __rte_ipv4_udptcp_cksum_mbuf(m, ipv4_hdr, l4_off);
453
454 cksum = ~cksum;
455
456 /*
457 * Per RFC 768: If the computed checksum is zero for UDP,
458 * it is transmitted as all ones
459 * (the equivalent in one's complement arithmetic).
460 */
461 if (cksum == 0 && ipv4_hdr->next_proto_id == IPPROTO_UDP)
462 cksum = 0xffff;
463
464 return cksum;
465}
466
480static inline int
482 const void *l4_hdr)
483{
484 uint16_t cksum = __rte_ipv4_udptcp_cksum(ipv4_hdr, l4_hdr);
485
486 if (cksum != 0xffff)
487 return -1;
488
489 return 0;
490}
491
507static inline int
509 const struct rte_ipv4_hdr *ipv4_hdr,
510 uint16_t l4_off)
511{
512 uint16_t cksum = __rte_ipv4_udptcp_cksum_mbuf(m, ipv4_hdr, l4_off);
513
514 if (cksum != 0xffff)
515 return -1;
516
517 return 0;
518}
519
531
532/* IPv6 routing extension type definition. */
533#define RTE_IPV6_SRCRT_TYPE_4 4
534
539 uint8_t next_hdr;
540 uint8_t hdr_len;
541 uint8_t type;
543 __extension__
544 union {
546 struct {
547 uint8_t last_entry;
548 uint8_t flag;
550 };
551 };
552 /* Next are 128-bit IPv6 address fields to describe segments. */
554
555/* IPv6 vtc_flow: IPv / TC / flow_label */
556#define RTE_IPV6_HDR_FL_SHIFT 0
557#define RTE_IPV6_HDR_TC_SHIFT 20
558#define RTE_IPV6_HDR_FL_MASK ((1u << RTE_IPV6_HDR_TC_SHIFT) - 1)
559#define RTE_IPV6_HDR_TC_MASK (0xff << RTE_IPV6_HDR_TC_SHIFT)
560#define RTE_IPV6_HDR_DSCP_MASK (0xfc << RTE_IPV6_HDR_TC_SHIFT)
561#define RTE_IPV6_HDR_ECN_MASK (0x03 << RTE_IPV6_HDR_TC_SHIFT)
562#define RTE_IPV6_HDR_ECN_CE RTE_IPV6_HDR_ECN_MASK
563
564#define RTE_IPV6_MIN_MTU 1280
582static inline uint16_t
583rte_ipv6_phdr_cksum(const struct rte_ipv6_hdr *ipv6_hdr, uint64_t ol_flags)
584{
585 uint32_t sum;
586 struct {
587 rte_be32_t len; /* L4 length. */
588 rte_be32_t proto; /* L4 protocol - top 3 bytes must be zero */
589 } psd_hdr;
590
591 psd_hdr.proto = (uint32_t)(ipv6_hdr->proto << 24);
592 if (ol_flags & (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG)) {
593 psd_hdr.len = 0;
594 } else {
595 psd_hdr.len = ipv6_hdr->payload_len;
596 }
597
598 sum = __rte_raw_cksum(ipv6_hdr->src_addr,
599 sizeof(ipv6_hdr->src_addr) + sizeof(ipv6_hdr->dst_addr),
600 0);
601 sum = __rte_raw_cksum(&psd_hdr, sizeof(psd_hdr), sum);
602 return __rte_raw_cksum_reduce(sum);
603}
604
608static inline uint16_t
609__rte_ipv6_udptcp_cksum(const struct rte_ipv6_hdr *ipv6_hdr, const void *l4_hdr)
610{
611 uint32_t cksum;
612 uint32_t l4_len;
613
614 l4_len = rte_be_to_cpu_16(ipv6_hdr->payload_len);
615
616 cksum = rte_raw_cksum(l4_hdr, l4_len);
617 cksum += rte_ipv6_phdr_cksum(ipv6_hdr, 0);
618
619 cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
620
621 return (uint16_t)cksum;
622}
623
637static inline uint16_t
638rte_ipv6_udptcp_cksum(const struct rte_ipv6_hdr *ipv6_hdr, const void *l4_hdr)
639{
640 uint16_t cksum = __rte_ipv6_udptcp_cksum(ipv6_hdr, l4_hdr);
641
642 cksum = ~cksum;
643
644 /*
645 * Per RFC 768: If the computed checksum is zero for UDP,
646 * it is transmitted as all ones
647 * (the equivalent in one's complement arithmetic).
648 */
649 if (cksum == 0 && ipv6_hdr->proto == IPPROTO_UDP)
650 cksum = 0xffff;
651
652 return cksum;
653}
654
658static inline uint16_t
659__rte_ipv6_udptcp_cksum_mbuf(const struct rte_mbuf *m,
660 const struct rte_ipv6_hdr *ipv6_hdr,
661 uint16_t l4_off)
662{
663 uint16_t raw_cksum;
664 uint32_t cksum;
665
666 if (l4_off > m->pkt_len)
667 return 0;
668
669 if (rte_raw_cksum_mbuf(m, l4_off, m->pkt_len - l4_off, &raw_cksum))
670 return 0;
671
672 cksum = raw_cksum + rte_ipv6_phdr_cksum(ipv6_hdr, 0);
673
674 cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
675
676 return (uint16_t)cksum;
677}
678
694static inline uint16_t
696 const struct rte_ipv6_hdr *ipv6_hdr, uint16_t l4_off)
697{
698 uint16_t cksum = __rte_ipv6_udptcp_cksum_mbuf(m, ipv6_hdr, l4_off);
699
700 cksum = ~cksum;
701
702 /*
703 * Per RFC 768: If the computed checksum is zero for UDP,
704 * it is transmitted as all ones
705 * (the equivalent in one's complement arithmetic).
706 */
707 if (cksum == 0 && ipv6_hdr->proto == IPPROTO_UDP)
708 cksum = 0xffff;
709
710 return cksum;
711}
712
727static inline int
729 const void *l4_hdr)
730{
731 uint16_t cksum = __rte_ipv6_udptcp_cksum(ipv6_hdr, l4_hdr);
732
733 if (cksum != 0xffff)
734 return -1;
735
736 return 0;
737}
738
755static inline int
757 const struct rte_ipv6_hdr *ipv6_hdr,
758 uint16_t l4_off)
759{
760 uint16_t cksum = __rte_ipv6_udptcp_cksum_mbuf(m, ipv6_hdr, l4_off);
761
762 if (cksum != 0xffff)
763 return -1;
764
765 return 0;
766}
767
769#define RTE_IPV6_EHDR_MF_SHIFT 0
770#define RTE_IPV6_EHDR_MF_MASK 1
771#define RTE_IPV6_EHDR_FO_SHIFT 3
772#define RTE_IPV6_EHDR_FO_MASK (~((1 << RTE_IPV6_EHDR_FO_SHIFT) - 1))
773#define RTE_IPV6_EHDR_FO_ALIGN (1 << RTE_IPV6_EHDR_FO_SHIFT)
774
775#define RTE_IPV6_FRAG_USED_MASK (RTE_IPV6_EHDR_MF_MASK | RTE_IPV6_EHDR_FO_MASK)
776
777#define RTE_IPV6_GET_MF(x) ((x) & RTE_IPV6_EHDR_MF_MASK)
778#define RTE_IPV6_GET_FO(x) ((x) >> RTE_IPV6_EHDR_FO_SHIFT)
779
780#define RTE_IPV6_SET_FRAG_DATA(fo, mf) \
781 (((fo) & RTE_IPV6_EHDR_FO_MASK) | ((mf) & RTE_IPV6_EHDR_MF_MASK))
782
783struct rte_ipv6_fragment_ext {
784 uint8_t next_header;
785 uint8_t reserved;
786 rte_be16_t frag_data;
787 rte_be32_t id;
789
790/* IPv6 fragment extension header size */
791#define RTE_IPV6_FRAG_HDR_SIZE sizeof(struct rte_ipv6_fragment_ext)
792
809static inline int
810rte_ipv6_get_next_ext(const uint8_t *p, int proto, size_t *ext_len)
811{
812 int next_proto;
813
814 switch (proto) {
815 case IPPROTO_AH:
816 next_proto = *p++;
817 *ext_len = (*p + 2) * sizeof(uint32_t);
818 break;
819
820 case IPPROTO_HOPOPTS:
821 case IPPROTO_ROUTING:
822 case IPPROTO_DSTOPTS:
823 next_proto = *p++;
824 *ext_len = (*p + 1) * sizeof(uint64_t);
825 break;
826
827 case IPPROTO_FRAGMENT:
828 next_proto = *p;
829 *ext_len = RTE_IPV6_FRAG_HDR_SIZE;
830 break;
831
832 default:
833 return -EINVAL;
834 }
835
836 return next_proto;
837}
838
839#ifdef __cplusplus
840}
841#endif
842
843#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:583
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:638
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:508
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:756
static int rte_ipv6_get_next_ext(const uint8_t *p, int proto, size_t *ext_len)
Definition rte_ip.h:810
static int rte_ipv6_udptcp_cksum_verify(const struct rte_ipv6_hdr *ipv6_hdr, const void *l4_hdr)
Definition rte_ip.h:728
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:695
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:449
#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:481
#define rte_pktmbuf_data_len(m)
Definition rte_mbuf.h:1565
#define rte_pktmbuf_pkt_len(m)
Definition rte_mbuf.h:1555
#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:527
uint8_t dst_addr[16]
Definition rte_ip.h:529
rte_be32_t vtc_flow
Definition rte_ip.h:524
uint8_t src_addr[16]
Definition rte_ip.h:528
rte_be16_t payload_len
Definition rte_ip.h:525
uint8_t proto
Definition rte_ip.h:526
rte_be32_t flags
Definition rte_ip.h:545
uint8_t segments_left
Definition rte_ip.h:542
rte_be16_t tag
Definition rte_ip.h:549
uint64_t ol_flags
uint32_t pkt_len
struct rte_mbuf * next