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-rwxr-xr-xsrc/dpdk_lib18/librte_ip_frag/rte_ipv4_fragmentation.c209
1 files changed, 0 insertions, 209 deletions
diff --git a/src/dpdk_lib18/librte_ip_frag/rte_ipv4_fragmentation.c b/src/dpdk_lib18/librte_ip_frag/rte_ipv4_fragmentation.c
deleted file mode 100755
index a4ed9238..00000000
--- a/src/dpdk_lib18/librte_ip_frag/rte_ipv4_fragmentation.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 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.
- */
-
-#include <stddef.h>
-#include <errno.h>
-
-#include <rte_memcpy.h>
-#include <rte_mempool.h>
-#include <rte_debug.h>
-
-#include "ip_frag_common.h"
-
-/* Fragment Offset */
-#define IPV4_HDR_DF_SHIFT 14
-#define IPV4_HDR_MF_SHIFT 13
-#define IPV4_HDR_FO_SHIFT 3
-
-#define IPV4_HDR_DF_MASK (1 << IPV4_HDR_DF_SHIFT)
-#define IPV4_HDR_MF_MASK (1 << IPV4_HDR_MF_SHIFT)
-
-#define IPV4_HDR_FO_MASK ((1 << IPV4_HDR_FO_SHIFT) - 1)
-
-static inline void __fill_ipv4hdr_frag(struct ipv4_hdr *dst,
- const struct ipv4_hdr *src, uint16_t len, uint16_t fofs,
- uint16_t dofs, uint32_t mf)
-{
- rte_memcpy(dst, src, sizeof(*dst));
- fofs = (uint16_t)(fofs + (dofs >> IPV4_HDR_FO_SHIFT));
- fofs = (uint16_t)(fofs | mf << IPV4_HDR_MF_SHIFT);
- dst->fragment_offset = rte_cpu_to_be_16(fofs);
- dst->total_length = rte_cpu_to_be_16(len);
- dst->hdr_checksum = 0;
-}
-
-static inline void __free_fragments(struct rte_mbuf *mb[], uint32_t num)
-{
- uint32_t i;
- for (i = 0; i != num; i++)
- rte_pktmbuf_free(mb[i]);
-}
-
-/**
- * IPv4 fragmentation.
- *
- * This function implements the fragmentation of IPv4 packets.
- *
- * @param pkt_in
- * The input packet.
- * @param pkts_out
- * Array storing the output fragments.
- * @param mtu_size
- * Size in bytes of the Maximum Transfer Unit (MTU) for the outgoing IPv4
- * datagrams. This value includes the size of the IPv4 header.
- * @param pool_direct
- * MBUF pool used for allocating direct buffers for the output fragments.
- * @param pool_indirect
- * MBUF pool used for allocating indirect buffers for the output fragments.
- * @return
- * Upon successful completion - number of output fragments placed
- * in the pkts_out array.
- * Otherwise - (-1) * <errno>.
- */
-int32_t
-rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
- struct rte_mbuf **pkts_out,
- uint16_t nb_pkts_out,
- uint16_t mtu_size,
- struct rte_mempool *pool_direct,
- struct rte_mempool *pool_indirect)
-{
- struct rte_mbuf *in_seg = NULL;
- struct ipv4_hdr *in_hdr;
- uint32_t out_pkt_pos, in_seg_data_pos;
- uint32_t more_in_segs;
- uint16_t fragment_offset, flag_offset, frag_size;
-
- frag_size = (uint16_t)(mtu_size - sizeof(struct ipv4_hdr));
-
- /* Fragment size should be a multiply of 8. */
- IP_FRAG_ASSERT((frag_size & IPV4_HDR_FO_MASK) == 0);
-
- in_hdr = rte_pktmbuf_mtod(pkt_in, struct ipv4_hdr *);
- flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
-
- /* If Don't Fragment flag is set */
- if (unlikely ((flag_offset & IPV4_HDR_DF_MASK) != 0))
- return -ENOTSUP;
-
- /* Check that pkts_out is big enough to hold all fragments */
- if (unlikely(frag_size * nb_pkts_out <
- (uint16_t)(pkt_in->pkt_len - sizeof (struct ipv4_hdr))))
- return -EINVAL;
-
- in_seg = pkt_in;
- in_seg_data_pos = sizeof(struct ipv4_hdr);
- out_pkt_pos = 0;
- fragment_offset = 0;
-
- more_in_segs = 1;
- while (likely(more_in_segs)) {
- struct rte_mbuf *out_pkt = NULL, *out_seg_prev = NULL;
- uint32_t more_out_segs;
- struct ipv4_hdr *out_hdr;
-
- /* Allocate direct buffer */
- out_pkt = rte_pktmbuf_alloc(pool_direct);
- if (unlikely(out_pkt == NULL)) {
- __free_fragments(pkts_out, out_pkt_pos);
- return -ENOMEM;
- }
-
- /* Reserve space for the IP header that will be built later */
- out_pkt->data_len = sizeof(struct ipv4_hdr);
- out_pkt->pkt_len = sizeof(struct ipv4_hdr);
-
- out_seg_prev = out_pkt;
- more_out_segs = 1;
- while (likely(more_out_segs && more_in_segs)) {
- struct rte_mbuf *out_seg = NULL;
- uint32_t len;
-
- /* Allocate indirect buffer */
- out_seg = rte_pktmbuf_alloc(pool_indirect);
- if (unlikely(out_seg == NULL)) {
- rte_pktmbuf_free(out_pkt);
- __free_fragments(pkts_out, out_pkt_pos);
- return -ENOMEM;
- }
- out_seg_prev->next = out_seg;
- out_seg_prev = out_seg;
-
- /* Prepare indirect buffer */
- rte_pktmbuf_attach(out_seg, in_seg);
- len = mtu_size - out_pkt->pkt_len;
- if (len > (in_seg->data_len - in_seg_data_pos)) {
- len = in_seg->data_len - in_seg_data_pos;
- }
- out_seg->data_off = in_seg->data_off + in_seg_data_pos;
- out_seg->data_len = (uint16_t)len;
- out_pkt->pkt_len = (uint16_t)(len +
- out_pkt->pkt_len);
- out_pkt->nb_segs += 1;
- in_seg_data_pos += len;
-
- /* Current output packet (i.e. fragment) done ? */
- if (unlikely(out_pkt->pkt_len >= mtu_size))
- more_out_segs = 0;
-
- /* Current input segment done ? */
- if (unlikely(in_seg_data_pos == in_seg->data_len)) {
- in_seg = in_seg->next;
- in_seg_data_pos = 0;
-
- if (unlikely(in_seg == NULL))
- more_in_segs = 0;
- }
- }
-
- /* Build the IP header */
-
- out_hdr = rte_pktmbuf_mtod(out_pkt, struct ipv4_hdr *);
-
- __fill_ipv4hdr_frag(out_hdr, in_hdr,
- (uint16_t)out_pkt->pkt_len,
- flag_offset, fragment_offset, more_in_segs);
-
- fragment_offset = (uint16_t)(fragment_offset +
- out_pkt->pkt_len - sizeof(struct ipv4_hdr));
-
- out_pkt->ol_flags |= PKT_TX_IP_CKSUM;
- out_pkt->l3_len = sizeof(struct ipv4_hdr);
-
- /* Write the fragment to the output list */
- pkts_out[out_pkt_pos] = out_pkt;
- out_pkt_pos ++;
- }
-
- return out_pkt_pos;
-}