19 #include <sys/types.h>
20 #include <netinet/in.h>
21 #include <netinet/ip.h>
47 #define RTE_IPV4(a, b, c, d) ((uint32_t)(((a) & 0xff) << 24) | \
48 (((b) & 0xff) << 16) | \
49 (((c) & 0xff) << 8) | \
53 #define RTE_IPV4_MAX_PKT_LEN 65535
56 #define RTE_IPV4_HDR_IHL_MASK (0x0f)
61 #define RTE_IPV4_IHL_MULTIPLIER (4)
64 #define RTE_IPV4_HDR_DSCP_MASK (0xfc)
65 #define RTE_IPV4_HDR_ECN_MASK (0x03)
66 #define RTE_IPV4_HDR_ECN_CE RTE_IPV4_HDR_ECN_MASK
69 #define RTE_IPV4_HDR_DF_SHIFT 14
70 #define RTE_IPV4_HDR_MF_SHIFT 13
71 #define RTE_IPV4_HDR_FO_SHIFT 3
73 #define RTE_IPV4_HDR_DF_FLAG (1 << RTE_IPV4_HDR_DF_SHIFT)
74 #define RTE_IPV4_HDR_MF_FLAG (1 << RTE_IPV4_HDR_MF_SHIFT)
76 #define RTE_IPV4_HDR_OFFSET_MASK ((1 << RTE_IPV4_HDR_MF_SHIFT) - 1)
78 #define RTE_IPV4_HDR_OFFSET_UNITS 8
83 #define RTE_IPV4_ANY ((uint32_t)0x00000000)
84 #define RTE_IPV4_LOOPBACK ((uint32_t)0x7f000001)
85 #define RTE_IPV4_BROADCAST ((uint32_t)0xe0000000)
86 #define RTE_IPV4_ALLHOSTS_GROUP ((uint32_t)0xe0000001)
87 #define RTE_IPV4_ALLRTRS_GROUP ((uint32_t)0xe0000002)
88 #define RTE_IPV4_MAX_LOCAL_GROUP ((uint32_t)0xe00000ff)
93 #define RTE_IPV4_MIN_MCAST \
94 RTE_IPV4(224, 0, 0, 0)
95 #define RTE_IPV4_MAX_MCAST \
96 RTE_IPV4(239, 255, 255, 255)
98 #define RTE_IS_IPV4_MCAST(x) \
99 ((x) >= RTE_IPV4_MIN_MCAST && (x) <= RTE_IPV4_MAX_MCAST)
103 #define RTE_IPV4_MIN_IHL (0x5)
104 #define RTE_IPV4_VHL_DEF ((IPVERSION << 4) | RTE_IPV4_MIN_IHL)
114 static inline uint8_t
134 static inline uint32_t
135 __rte_raw_cksum(
const void *buf,
size_t len, uint32_t sum)
140 buf != end; buf =
RTE_PTR_ADD(buf,
sizeof(uint16_t))) {
143 memcpy(&v, buf,
sizeof(uint16_t));
151 memcpy(&left, end, 1);
167 static inline uint16_t
168 __rte_raw_cksum_reduce(uint32_t sum)
170 sum = ((sum & 0xffff0000) >> 16) + (sum & 0xffff);
171 sum = ((sum & 0xffff0000) >> 16) + (sum & 0xffff);
172 return (uint16_t)sum;
185 static inline uint16_t
190 sum = __rte_raw_cksum(buf, len, 0);
191 return __rte_raw_cksum_reduce(sum);
215 uint32_t seglen, done;
220 const char *, off), len);
229 for (seg = m; seg != NULL; seg = seg->
next) {
235 RTE_ASSERT(seg != NULL);
250 tmp = __rte_raw_cksum(buf, seglen, 0);
260 if (seglen > len - done)
264 *cksum = __rte_raw_cksum_reduce(sum);
278 static inline uint16_t
283 return (uint16_t)~cksum;
304 static inline uint16_t
307 struct ipv4_psd_header {
317 psd_hdr.src_addr = ipv4_hdr->
src_addr;
318 psd_hdr.dst_addr = ipv4_hdr->
dst_addr;
344 static inline uint16_t
348 uint32_t l3_len, l4_len;
353 if (l3_len < ip_hdr_len)
356 l4_len = l3_len - ip_hdr_len;
361 cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
362 cksum = (~cksum) & 0xffff;
371 return (uint16_t)cksum;
387 #define RTE_IPV6_HDR_FL_SHIFT 0
388 #define RTE_IPV6_HDR_TC_SHIFT 20
389 #define RTE_IPV6_HDR_FL_MASK ((1u << RTE_IPV6_HDR_TC_SHIFT) - 1)
390 #define RTE_IPV6_HDR_TC_MASK (0xff << RTE_IPV6_HDR_TC_SHIFT)
391 #define RTE_IPV6_HDR_DSCP_MASK (0xfc << RTE_IPV6_HDR_TC_SHIFT)
392 #define RTE_IPV6_HDR_ECN_MASK (0x03 << RTE_IPV6_HDR_TC_SHIFT)
393 #define RTE_IPV6_HDR_ECN_CE RTE_IPV6_HDR_ECN_MASK
395 #define RTE_IPV6_MIN_MTU 1280
413 static inline uint16_t
422 psd_hdr.proto = (uint32_t)(ipv6_hdr->
proto << 24);
429 sum = __rte_raw_cksum(ipv6_hdr->
src_addr,
432 sum = __rte_raw_cksum(&psd_hdr,
sizeof(psd_hdr), sum);
433 return __rte_raw_cksum_reduce(sum);
449 static inline uint16_t
460 cksum = ((cksum & 0xffff0000) >> 16) + (cksum & 0xffff);
461 cksum = (~cksum) & 0xffff;
467 if (cksum == 0 && ipv6_hdr->
proto == IPPROTO_UDP)
470 return (uint16_t)cksum;
474 #define RTE_IPV6_EHDR_MF_SHIFT 0
475 #define RTE_IPV6_EHDR_MF_MASK 1
476 #define RTE_IPV6_EHDR_FO_SHIFT 3
477 #define RTE_IPV6_EHDR_FO_MASK (~((1 << RTE_IPV6_EHDR_FO_SHIFT) - 1))
478 #define RTE_IPV6_EHDR_FO_ALIGN (1 << RTE_IPV6_EHDR_FO_SHIFT)
480 #define RTE_IPV6_FRAG_USED_MASK (RTE_IPV6_EHDR_MF_MASK | RTE_IPV6_EHDR_FO_MASK)
482 #define RTE_IPV6_GET_MF(x) ((x) & RTE_IPV6_EHDR_MF_MASK)
483 #define RTE_IPV6_GET_FO(x) ((x) >> RTE_IPV6_EHDR_FO_SHIFT)
485 #define RTE_IPV6_SET_FRAG_DATA(fo, mf) \
486 (((fo) & RTE_IPV6_EHDR_FO_MASK) | ((mf) & RTE_IPV6_EHDR_MF_MASK))
488 struct rte_ipv6_fragment_ext {
496 #define RTE_IPV6_FRAG_HDR_SIZE sizeof(struct rte_ipv6_fragment_ext)
523 *ext_len = (*p + 2) *
sizeof(uint32_t);
526 case IPPROTO_HOPOPTS:
527 case IPPROTO_ROUTING:
528 case IPPROTO_DSTOPTS:
530 *ext_len = (*p + 1) *
sizeof(uint64_t);
533 case IPPROTO_FRAGMENT:
535 *ext_len = RTE_IPV6_FRAG_HDR_SIZE;
static uint16_t rte_be_to_cpu_16(rte_be16_t x)
static rte_be16_t rte_cpu_to_be_16(uint16_t x)
static uint16_t rte_bswap16(uint16_t _x)
#define RTE_ALIGN_FLOOR(val, align)
#define RTE_PTR_ADD(ptr, x)
static uint16_t rte_ipv4_phdr_cksum(const struct rte_ipv4_hdr *ipv4_hdr, uint64_t ol_flags)
static __rte_experimental int rte_ipv6_get_next_ext(const uint8_t *p, int proto, size_t *ext_len)
static uint16_t rte_ipv6_phdr_cksum(const struct rte_ipv6_hdr *ipv6_hdr, uint64_t ol_flags)
static uint16_t rte_raw_cksum(const void *buf, size_t len)
static uint16_t rte_ipv6_udptcp_cksum(const struct rte_ipv6_hdr *ipv6_hdr, const void *l4_hdr)
static uint16_t rte_ipv4_udptcp_cksum(const struct rte_ipv4_hdr *ipv4_hdr, const void *l4_hdr)
static uint16_t rte_ipv4_cksum(const struct rte_ipv4_hdr *ipv4_hdr)
static int rte_raw_cksum_mbuf(const struct rte_mbuf *m, uint32_t off, uint32_t len, uint16_t *cksum)
static uint8_t rte_ipv4_hdr_len(const struct rte_ipv4_hdr *ipv4_hdr)
#define RTE_IPV4_HDR_IHL_MASK
#define RTE_IPV4_IHL_MULTIPLIER
#define rte_pktmbuf_data_len(m)
#define rte_pktmbuf_pkt_len(m)
#define rte_pktmbuf_mtod(m, t)
#define rte_pktmbuf_mtod_offset(m, t, o)
rte_be16_t fragment_offset