50705e8e3c
The macro RTE_VERIFY always checks a condition. It is optimized with "unlikely" hint. While this macro is well suited for test applications, it is preferred in libraries and examples to enable such check in debug mode. That's why the macro RTE_ASSERT is introduced to call RTE_VERIFY only if built with debug logs enabled. A lot of assert macros were duplicated and enabled with a specific flag. Removing these #ifdef allows to test these code branches more easily and avoid dead code pitfalls. The ENA_ASSERT is kept (in debug mode only) because it has more parameters to log. Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2016 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __IPIP_H__
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#define __IPIP_H__
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#include <stdint.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <rte_mbuf.h>
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#define IPV6_VERSION (6)
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static inline struct ip *
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ip4ip_outbound(struct rte_mbuf *m, uint32_t offset, uint32_t src, uint32_t dst)
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{
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struct ip *inip, *outip;
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inip = rte_pktmbuf_mtod(m, struct ip*);
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RTE_ASSERT(inip->ip_v == IPVERSION || inip->ip_v == IPV6_VERSION);
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offset += sizeof(struct ip);
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outip = (struct ip *)rte_pktmbuf_prepend(m, offset);
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RTE_ASSERT(outip != NULL);
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/* Per RFC4301 5.1.2.1 */
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outip->ip_v = IPVERSION;
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outip->ip_hl = 5;
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outip->ip_tos = inip->ip_tos;
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outip->ip_len = htons(rte_pktmbuf_data_len(m));
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outip->ip_id = 0;
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outip->ip_off = 0;
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outip->ip_ttl = IPDEFTTL;
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outip->ip_p = IPPROTO_ESP;
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outip->ip_src.s_addr = src;
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outip->ip_dst.s_addr = dst;
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return outip;
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}
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static inline int
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ip4ip_inbound(struct rte_mbuf *m, uint32_t offset)
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{
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struct ip *inip;
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struct ip *outip;
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outip = rte_pktmbuf_mtod(m, struct ip*);
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RTE_ASSERT(outip->ip_v == IPVERSION);
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offset += sizeof(struct ip);
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inip = (struct ip *)rte_pktmbuf_adj(m, offset);
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RTE_ASSERT(inip->ip_v == IPVERSION || inip->ip_v == IPV6_VERSION);
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/* Check packet is still bigger than IP header (inner) */
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RTE_ASSERT(rte_pktmbuf_pkt_len(m) > sizeof(struct ip));
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/* RFC4301 5.1.2.1 Note 6 */
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if ((inip->ip_tos & htons(IPTOS_ECN_ECT0 | IPTOS_ECN_ECT1)) &&
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((outip->ip_tos & htons(IPTOS_ECN_CE)) == IPTOS_ECN_CE))
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inip->ip_tos |= htons(IPTOS_ECN_CE);
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return 0;
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}
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#endif /* __IPIP_H__ */
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