diff options
Diffstat (limited to 'src/dpdk_lib18/librte_ip_frag/rte_ipv4_reassembly.c')
| -rwxr-xr-x | src/dpdk_lib18/librte_ip_frag/rte_ipv4_reassembly.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/src/dpdk_lib18/librte_ip_frag/rte_ipv4_reassembly.c b/src/dpdk_lib18/librte_ip_frag/rte_ipv4_reassembly.c deleted file mode 100755 index 0b8ceebd..00000000 --- a/src/dpdk_lib18/librte_ip_frag/rte_ipv4_reassembly.c +++ /dev/null @@ -1,183 +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 <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) -{ - struct ipv4_hdr *ip_hdr; - struct rte_mbuf *m, *prev; - uint32_t i, n, ofs, first_len; - - 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; - - while (ofs != first_len) { - - prev = m; - - for (i = n; i != IP_FIRST_FRAG_IDX && ofs != first_len; i--) { - - /* previous fragment found. */ - if(fp->frags[i].ofs + fp->frags[i].len == ofs) { - - ip_frag_chain(fp->frags[i].mb, m); - - /* update our last fragment and offset. */ - m = fp->frags[i].mb; - ofs = fp->frags[i].ofs; - } - } - - /* error - hole in the packet. */ - if (m == prev) { - return (NULL); - } - } - - /* chain with the first fragment. */ - ip_frag_chain(fp->frags[IP_FIRST_FRAG_IDX].mb, m); - m = fp->frags[IP_FIRST_FRAG_IDX].mb; - - /* 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->l2_len); - - ip_hdr->total_length = rte_cpu_to_be_16((uint16_t)(fp->total_size + - 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); -} - -/* - * Process new mbuf with fragment of IPV4 packet. - * Incoming mbuf should have it's l2_len/l3_len fields setuped correclty. - * @param tbl - * Table where to lookup/add the fragmented packet. - * @param mb - * Incoming mbuf with IPV4 fragment. - * @param tms - * Fragment arrival timestamp. - * @param ip_hdr - * Pointer to the IPV4 header inside the fragment. - * @return - * Pointer to mbuf for reassebled packet, or NULL if: - * - an error occured. - * - not all fragments of the packet are collected yet. - */ -struct rte_mbuf * -rte_ipv4_frag_reassemble_packet(struct rte_ip_frag_tbl *tbl, - struct rte_ip_frag_death_row *dr, struct rte_mbuf *mb, uint64_t tms, - struct ipv4_hdr *ip_hdr) -{ - struct ip_frag_pkt *fp; - struct ip_frag_key key; - const uint64_t *psd; - uint16_t ip_len; - uint16_t flag_offset, ip_ofs, ip_flag; - - flag_offset = rte_be_to_cpu_16(ip_hdr->fragment_offset); - 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; - /* use first 8 bytes only */ - key.src_dst[0] = psd[0]; - key.id = ip_hdr->packet_id; - key.key_len = IPV4_KEYLEN; - - ip_ofs *= IPV4_HDR_OFFSET_UNITS; - ip_len = (uint16_t)(rte_be_to_cpu_16(ip_hdr->total_length) - - mb->l3_len); - - IP_FRAG_LOG(DEBUG, "%s:%d:\n" - "mbuf: %p, tms: %" PRIu64 - ", key: <%" PRIx64 ", %#x>, ofs: %u, len: %u, flags: %#x\n" - "tbl: %p, max_cycles: %" PRIu64 ", entry_mask: %#x, " - "max_entries: %u, use_entries: %u\n\n", - __func__, __LINE__, - 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); - } - - IP_FRAG_LOG(DEBUG, "%s:%d:\n" - "tbl: %p, max_entries: %u, use_entries: %u\n" - "ipv4_frag_pkt: %p, key: <%" PRIx64 ", %#x>, start: %" PRIu64 - ", 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[0], fp->key.id, fp->start, - fp->total_size, fp->frag_size, fp->last_idx); - - - /* process the fragmented packet. */ - mb = ip_frag_process(fp, dr, mb, ip_ofs, ip_len, ip_flag); - ip_frag_inuse(tbl, fp); - - IP_FRAG_LOG(DEBUG, "%s:%d:\n" - "mbuf: %p\n" - "tbl: %p, max_entries: %u, use_entries: %u\n" - "ipv4_frag_pkt: %p, key: <%" PRIx64 ", %#x>, start: %" PRIu64 - ", 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[0], fp->key.id, fp->start, - fp->total_size, fp->frag_size, fp->last_idx); - - return (mb); -} |