crypto: testmgr - fix sglen in test_aead for case 'dst != src'

Commit d8a32ac25698cd60b02bed2100379803c7f964e3 (crypto: testmgr - make
test_aead also test 'dst != src' code paths) added support for different
source and destination buffers in test_aead.

This patch modifies the source and destination buffer lengths accordingly:
the lengths are not equal since encryption / decryption adds / removes
the ICV.

Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 432afc03e7c3f9c1040ac54033950eb9e17c0727..77955507f6f1f73a044554a7d738074c98f9829e 100644 (file)
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -503,16 +503,16 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
                                goto out;
                        }
 
-                       sg_init_one(&sg[0], input,
-                                   template[i].ilen + (enc ? authsize : 0));
-
                        if (diff_dst) {
                                output = xoutbuf[0];
                                output += align_offset;
+                               sg_init_one(&sg[0], input, template[i].ilen);
                                sg_init_one(&sgout[0], output,
+                                           template[i].rlen);
+                       } else {
+                               sg_init_one(&sg[0], input,
                                            template[i].ilen +
                                                (enc ? authsize : 0));
-                       } else {
                                output = input;
                        }
 
@@ -612,12 +612,6 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
                                memcpy(q, template[i].input + temp,
                                       template[i].tap[k]);
 
-                               n = template[i].tap[k];
-                               if (k == template[i].np - 1 && enc)
-                                       n += authsize;
-                               if (offset_in_page(q) + n < PAGE_SIZE)
-                                       q[n] = 0;
-
                                sg_set_buf(&sg[k], q, template[i].tap[k]);
 
                                if (diff_dst) {
@@ -625,13 +619,17 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
                                            offset_in_page(IDX[k]);
 
                                        memset(q, 0, template[i].tap[k]);
-                                       if (offset_in_page(q) + n < PAGE_SIZE)
-                                               q[n] = 0;
 
                                        sg_set_buf(&sgout[k], q,
                                                   template[i].tap[k]);
                                }
 
+                               n = template[i].tap[k];
+                               if (k == template[i].np - 1 && enc)
+                                       n += authsize;
+                               if (offset_in_page(q) + n < PAGE_SIZE)
+                                       q[n] = 0;
+
                                temp += template[i].tap[k];
                        }
 
@@ -650,10 +648,10 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
                                        goto out;
                                }
 
-                               sg[k - 1].length += authsize;
-
                                if (diff_dst)
                                        sgout[k - 1].length += authsize;
+                               else
+                                       sg[k - 1].length += authsize;
                        }
 
                        sg_init_table(asg, template[i].anp);