-/*-
- * 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
*/
#include <stddef.h>
#include <rte_debug.h>
-#include <rte_tailq.h>
#include "ip_frag_common.h"
* Reassemble fragments into one packet.
*/
struct rte_mbuf *
-ipv4_frag_reassemble(const struct ip_frag_pkt *fp)
+ipv4_frag_reassemble(struct ip_frag_pkt *fp)
{
struct ipv4_hdr *ip_hdr;
struct rte_mbuf *m, *prev;
uint32_t i, n, ofs, first_len;
+ uint32_t curr_idx = 0;
first_len = fp->frags[IP_FIRST_FRAG_IDX].len;
n = fp->last_idx - 1;
/*start from the last fragment. */
m = fp->frags[IP_LAST_FRAG_IDX].mb;
ofs = fp->frags[IP_LAST_FRAG_IDX].ofs;
+ curr_idx = IP_LAST_FRAG_IDX;
while (ofs != first_len) {
/* previous fragment found. */
if(fp->frags[i].ofs + fp->frags[i].len == ofs) {
- ip_frag_chain(fp->frags[i].mb, m);
+ /* adjust start of the last fragment data. */
+ rte_pktmbuf_adj(m, (uint16_t)(m->l2_len + m->l3_len));
+ rte_pktmbuf_chain(fp->frags[i].mb, m);
+
+ /* this mbuf should not be accessed directly */
+ fp->frags[curr_idx].mb = NULL;
+ curr_idx = i;
/* update our last fragment and offset. */
m = fp->frags[i].mb;
/* error - hole in the packet. */
if (m == prev) {
- return (NULL);
+ return NULL;
}
}
/* chain with the first fragment. */
- ip_frag_chain(fp->frags[IP_FIRST_FRAG_IDX].mb, m);
+ rte_pktmbuf_adj(m, (uint16_t)(m->l2_len + m->l3_len));
+ rte_pktmbuf_chain(fp->frags[IP_FIRST_FRAG_IDX].mb, m);
+ fp->frags[curr_idx].mb = NULL;
m = fp->frags[IP_FIRST_FRAG_IDX].mb;
+ fp->frags[IP_FIRST_FRAG_IDX].mb = NULL;
/* update mbuf fields for reassembled packet. */
m->ol_flags |= PKT_TX_IP_CKSUM;
- /* update ipv4 header for the reassmebled packet */
- ip_hdr = (struct ipv4_hdr*)(rte_pktmbuf_mtod(m, uint8_t *) +
- m->pkt.vlan_macip.f.l2_len);
+ /* update ipv4 header for the reassembled packet */
+ ip_hdr = rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *, m->l2_len);
ip_hdr->total_length = rte_cpu_to_be_16((uint16_t)(fp->total_size +
- m->pkt.vlan_macip.f.l3_len));
+ m->l3_len));
ip_hdr->fragment_offset = (uint16_t)(ip_hdr->fragment_offset &
rte_cpu_to_be_16(IPV4_HDR_DF_FLAG));
ip_hdr->hdr_checksum = 0;
- return (m);
+ return m;
}
/*
* @param ip_hdr
* Pointer to the IPV4 header inside the fragment.
* @return
- * Pointer to mbuf for reassebled packet, or NULL if:
- * - an error occured.
+ * Pointer to mbuf for reassembled packet, or NULL if:
+ * - an error occurred.
* - not all fragments of the packet are collected yet.
*/
struct rte_mbuf *
{
struct ip_frag_pkt *fp;
struct ip_frag_key key;
- const uint64_t *psd;
+ const unaligned_uint64_t *psd;
uint16_t ip_len;
uint16_t flag_offset, ip_ofs, ip_flag;
ip_ofs = (uint16_t)(flag_offset & IPV4_HDR_OFFSET_MASK);
ip_flag = (uint16_t)(flag_offset & IPV4_HDR_MF_FLAG);
- psd = (uint64_t *)&ip_hdr->src_addr;
+ psd = (unaligned_uint64_t *)&ip_hdr->src_addr;
/* use first 8 bytes only */
key.src_dst[0] = psd[0];
key.id = ip_hdr->packet_id;
ip_ofs *= IPV4_HDR_OFFSET_UNITS;
ip_len = (uint16_t)(rte_be_to_cpu_16(ip_hdr->total_length) -
- mb->pkt.vlan_macip.f.l3_len);
+ mb->l3_len);
IP_FRAG_LOG(DEBUG, "%s:%d:\n"
"mbuf: %p, tms: %" PRIu64
"tbl: %p, max_cycles: %" PRIu64 ", entry_mask: %#x, "
"max_entries: %u, use_entries: %u\n\n",
__func__, __LINE__,
- mb, tms, key.src_dst, key.id, ip_ofs, ip_len, ip_flag,
+ mb, tms, key.src_dst[0], key.id, ip_ofs, ip_len, ip_flag,
tbl, tbl->max_cycles, tbl->entry_mask, tbl->max_entries,
tbl->use_entries);
/* try to find/add entry into the fragment's table. */
if ((fp = ip_frag_find(tbl, dr, &key, tms)) == NULL) {
IP_FRAG_MBUF2DR(dr, mb);
- return (NULL);
+ return NULL;
}
IP_FRAG_LOG(DEBUG, "%s:%d:\n"
", total_size: %u, frag_size: %u, last_idx: %u\n\n",
__func__, __LINE__,
tbl, tbl->max_entries, tbl->use_entries,
- fp, fp->key.src_dst, fp->key.id, fp->start,
+ fp, fp->key.src_dst[0], fp->key.id, fp->start,
fp->total_size, fp->frag_size, fp->last_idx);
", total_size: %u, frag_size: %u, last_idx: %u\n\n",
__func__, __LINE__, mb,
tbl, tbl->max_entries, tbl->use_entries,
- fp, fp->key.src_dst, fp->key.id, fp->start,
+ fp, fp->key.src_dst[0], fp->key.id, fp->start,
fp->total_size, fp->frag_size, fp->last_idx);
- return (mb);
+ return mb;
}