* 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;
}
/* 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);
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 */
+ /* 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 +
* @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 *