X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_net%2Frte_net.c;h=378a4126c6b1b35b7fe6752527a4a5324a0c5147;hb=92b5ea41bb69c15220707a9f3954b6dc0058e956;hp=53cfef8a3a2b246fbf42e43d09e325c163df0cd2;hpb=2c15c5377da23863b02a4b94ae89a3a76dfa0e4a;p=dpdk.git diff --git a/lib/librte_net/rte_net.c b/lib/librte_net/rte_net.c index 53cfef8a3a..378a4126c6 100644 --- a/lib/librte_net/rte_net.c +++ b/lib/librte_net/rte_net.c @@ -1,34 +1,5 @@ -/*- - * BSD LICENSE - * - * Copyright 2016 6WIND S.A. - * 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 6WIND S.A. 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. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2016 6WIND S.A. */ #include @@ -42,6 +13,7 @@ #include #include #include +#include #include /* get l3 packet type from ip6 next protocol */ @@ -207,8 +179,8 @@ ip4_hlen(const struct ipv4_hdr *hdr) } /* parse ipv6 extended headers, update offset and return next proto */ -static uint16_t -skip_ip6_ext(uint16_t proto, const struct rte_mbuf *m, uint32_t *off, +int __rte_experimental +rte_net_skip_ip6_ext(uint16_t proto, const struct rte_mbuf *m, uint32_t *off, int *frag) { struct ext_hdr { @@ -230,7 +202,7 @@ skip_ip6_ext(uint16_t proto, const struct rte_mbuf *m, uint32_t *off, xh = rte_pktmbuf_read(m, *off, sizeof(*xh), &xh_copy); if (xh == NULL) - return 0; + return -1; *off += (xh->len + 1) * 8; proto = xh->next_hdr; break; @@ -238,7 +210,7 @@ skip_ip6_ext(uint16_t proto, const struct rte_mbuf *m, uint32_t *off, xh = rte_pktmbuf_read(m, *off, sizeof(*xh), &xh_copy); if (xh == NULL) - return 0; + return -1; *off += 8; proto = xh->next_hdr; *frag = 1; @@ -249,12 +221,12 @@ skip_ip6_ext(uint16_t proto, const struct rte_mbuf *m, uint32_t *off, return proto; } } - return 0; + return -1; } /* parse mbuf data to get packet type */ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, - struct rte_net_hdr_lens *hdr_lens) + struct rte_net_hdr_lens *hdr_lens, uint32_t layers) { struct rte_net_hdr_lens local_hdr_lens; const struct ether_hdr *eh; @@ -262,6 +234,7 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, uint32_t pkt_type = RTE_PTYPE_L2_ETHER; uint32_t off = 0; uint16_t proto; + int ret; if (hdr_lens == NULL) hdr_lens = &local_hdr_lens; @@ -273,6 +246,9 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, off = sizeof(*eh); hdr_lens->l2_len = off; + if ((layers & RTE_PTYPE_L2_MASK) == 0) + return 0; + if (proto == rte_cpu_to_be_16(ETHER_TYPE_IPv4)) goto l3; /* fast path if packet is IPv4 */ @@ -299,9 +275,30 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, off += 2 * sizeof(*vh); hdr_lens->l2_len += 2 * sizeof(*vh); proto = vh->eth_proto; + } else if ((proto == rte_cpu_to_be_16(ETHER_TYPE_MPLS)) || + (proto == rte_cpu_to_be_16(ETHER_TYPE_MPLSM))) { + unsigned int i; + const struct mpls_hdr *mh; + struct mpls_hdr mh_copy; + +#define MAX_MPLS_HDR 5 + for (i = 0; i < MAX_MPLS_HDR; i++) { + mh = rte_pktmbuf_read(m, off + (i * sizeof(*mh)), + sizeof(*mh), &mh_copy); + if (unlikely(mh == NULL)) + return pkt_type; + } + if (i == MAX_MPLS_HDR) + return pkt_type; + pkt_type = RTE_PTYPE_L2_ETHER_MPLS; + hdr_lens->l2_len += (sizeof(*mh) * i); + return pkt_type; } - l3: +l3: + if ((layers & RTE_PTYPE_L3_MASK) == 0) + return pkt_type; + if (proto == rte_cpu_to_be_16(ETHER_TYPE_IPv4)) { const struct ipv4_hdr *ip4h; struct ipv4_hdr ip4h_copy; @@ -313,6 +310,10 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, pkt_type |= ptype_l3_ip(ip4h->version_ihl); hdr_lens->l3_len = ip4_hlen(ip4h); off += hdr_lens->l3_len; + + if ((layers & RTE_PTYPE_L4_MASK) == 0) + return pkt_type; + if (ip4h->fragment_offset & rte_cpu_to_be_16( IPV4_HDR_OFFSET_MASK | IPV4_HDR_MF_FLAG)) { pkt_type |= RTE_PTYPE_L4_FRAG; @@ -335,11 +336,18 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, off += hdr_lens->l3_len; pkt_type |= ptype_l3_ip6(proto); if ((pkt_type & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV6_EXT) { - proto = skip_ip6_ext(proto, m, &off, &frag); + ret = rte_net_skip_ip6_ext(proto, m, &off, &frag); + if (ret < 0) + return pkt_type; + proto = ret; hdr_lens->l3_len = off - hdr_lens->l2_len; } if (proto == 0) return pkt_type; + + if ((layers & RTE_PTYPE_L4_MASK) == 0) + return pkt_type; + if (frag) { pkt_type |= RTE_PTYPE_L4_FRAG; hdr_lens->l4_len = 0; @@ -368,6 +376,10 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, uint32_t prev_off = off; hdr_lens->l4_len = 0; + + if ((layers & RTE_PTYPE_TUNNEL_MASK) == 0) + return pkt_type; + pkt_type |= ptype_tunnel(&proto, m, &off); hdr_lens->tunnel_len = off - prev_off; } @@ -375,6 +387,10 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, /* same job for inner header: we need to duplicate the code * because the packet types do not have the same value. */ + if ((layers & RTE_PTYPE_INNER_L2_MASK) == 0) + return pkt_type; + + hdr_lens->inner_l2_len = 0; if (proto == rte_cpu_to_be_16(ETHER_TYPE_TEB)) { eh = rte_pktmbuf_read(m, off, sizeof(*eh), &eh_copy); if (unlikely(eh == NULL)) @@ -412,6 +428,9 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, proto = vh->eth_proto; } + if ((layers & RTE_PTYPE_INNER_L3_MASK) == 0) + return pkt_type; + if (proto == rte_cpu_to_be_16(ETHER_TYPE_IPv4)) { const struct ipv4_hdr *ip4h; struct ipv4_hdr ip4h_copy; @@ -423,6 +442,9 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, pkt_type |= ptype_inner_l3_ip(ip4h->version_ihl); hdr_lens->inner_l3_len = ip4_hlen(ip4h); off += hdr_lens->inner_l3_len; + + if ((layers & RTE_PTYPE_INNER_L4_MASK) == 0) + return pkt_type; if (ip4h->fragment_offset & rte_cpu_to_be_16(IPV4_HDR_OFFSET_MASK | IPV4_HDR_MF_FLAG)) { @@ -450,11 +472,18 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, uint32_t prev_off; prev_off = off; - proto = skip_ip6_ext(proto, m, &off, &frag); + ret = rte_net_skip_ip6_ext(proto, m, &off, &frag); + if (ret < 0) + return pkt_type; + proto = ret; hdr_lens->inner_l3_len += off - prev_off; } if (proto == 0) return pkt_type; + + if ((layers & RTE_PTYPE_INNER_L4_MASK) == 0) + return pkt_type; + if (frag) { pkt_type |= RTE_PTYPE_INNER_L4_FRAG; hdr_lens->inner_l4_len = 0;