[Bug 44] examples/l2fwd-crypto : Wrong data length in case of AEAD ciphers

[Bug 44] examples/l2fwd-crypto : Wrong data length in case of AEAD ciphers

[bugzilla]

https://dpdk.org/tracker/show_bug.cgi?id=44

            Bug ID: 44
           Summary: examples/l2fwd-crypto : Wrong data length in case of
                    AEAD ciphers
           Product: DPDK
           Version: 18.05
          Hardware: All
                OS: All
            Status: CONFIRMED
          Severity: normal
          Priority: Normal
         Component: examples
          Assignee: dev@dpdk.org
          Reporter: ankur.dwivedi@cavium.com
  Target Milestone: ---

In l2fwd-crypto application, file main.c , the digest length is not getting
decremented for AEAD ciphers.

Line 410:
 if (cparams->do_hash && cparams->hash_verify)
                data_len -= cparams->digest_length;

I think this results in wrong values assignment in line 517
 op->sym->aead.data.length = data_len;

and wrong digest data pointer assignment in line 524

  op->sym->aead.digest.data = rte_pktmbuf_mtod(m,
                                uint8_t *) + ipdata_offset + data_len;

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