diff options
Diffstat (limited to 'examples/ipsec-secgw/ipip.h')
| -rw-r--r-- | examples/ipsec-secgw/ipip.h | 59 |
1 files changed, 26 insertions, 33 deletions
diff --git a/examples/ipsec-secgw/ipip.h b/examples/ipsec-secgw/ipip.h index 93393d52..13b8455c 100644 --- a/examples/ipsec-secgw/ipip.h +++ b/examples/ipsec-secgw/ipip.h @@ -1,34 +1,5 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2016 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. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016 Intel Corporation */ #ifndef __IPIP_H__ @@ -56,6 +27,10 @@ ipip_outbound(struct rte_mbuf *m, uint32_t offset, uint32_t is_ipv6, if (inip4->ip_v == IPVERSION) { /* XXX This should be done by the forwarding engine instead */ inip4->ip_ttl -= 1; + if (inip4->ip_sum >= rte_cpu_to_be_16(0xffff - 0x100)) + inip4->ip_sum += rte_cpu_to_be_16(0x100) + 1; + else + inip4->ip_sum += rte_cpu_to_be_16(0x100); ds_ecn = inip4->ip_tos; } else { inip6 = (struct ip6_hdr *)inip4; @@ -103,7 +78,7 @@ ipip_outbound(struct rte_mbuf *m, uint32_t offset, uint32_t is_ipv6, outip4->ip_src.s_addr = src->ip.ip4; outip4->ip_dst.s_addr = dst->ip.ip4; - + m->packet_type &= ~RTE_PTYPE_L4_MASK; return outip4; } @@ -124,8 +99,17 @@ ip6ip_outbound(struct rte_mbuf *m, uint32_t offset, static inline void ip4_ecn_setup(struct ip *ip4) { - if (ip4->ip_tos & IPTOS_ECN_MASK) + if (ip4->ip_tos & IPTOS_ECN_MASK) { + unsigned long sum; + uint8_t old; + + old = ip4->ip_tos; ip4->ip_tos |= IPTOS_ECN_CE; + sum = old + (~(*(uint8_t *)&ip4->ip_tos) & 0xff); + sum += rte_be_to_cpu_16(ip4->ip_sum); + sum = (sum & 0xffff) + (sum >> 16); + ip4->ip_sum = rte_cpu_to_be_16(sum + (sum >> 16)); + } } static inline void @@ -169,6 +153,15 @@ ipip_inbound(struct rte_mbuf *m, uint32_t offset) ip4_ecn_setup(inip4); /* XXX This should be done by the forwarding engine instead */ inip4->ip_ttl -= 1; + if (inip4->ip_sum >= rte_cpu_to_be_16(0xffff - 0x100)) + inip4->ip_sum += rte_cpu_to_be_16(0x100) + 1; + else + inip4->ip_sum += rte_cpu_to_be_16(0x100); + m->packet_type &= ~RTE_PTYPE_L4_MASK; + if (inip4->ip_p == IPPROTO_UDP) + m->packet_type |= RTE_PTYPE_L4_UDP; + else if (inip4->ip_p == IPPROTO_TCP) + m->packet_type |= RTE_PTYPE_L4_TCP; } else { inip6 = (struct ip6_hdr *)inip4; if (set_ecn) |