[mynewt-nimble] 07/31: mesh: Update seqnum when re-encrypting for friend

[naraj]

This is an automated email from the ASF dual-hosted git repository.

naraj pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-nimble.git

commit 8255bee130c3ab3e1852448f09634e60fd3ca9fc
Author: Krzysztof Kopyściński <krzysztof.kopyscin...@codecoup.pl>
AuthorDate: Mon Mar 29 12:47:24 2021 +0200

    mesh: Update seqnum when re-encrypting for friend
    
    Sets the sequence number when re-encrypting messages from the friend to
    the lpn.
    
    this is port of 512444d863f0e4de69ea600dda37b11f032e9707
---
 nimble/host/mesh/src/friend.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/nimble/host/mesh/src/friend.c b/nimble/host/mesh/src/friend.c
index 8dc55c1..5918ecf 100644
--- a/nimble/host/mesh/src/friend.c
+++ b/nimble/host/mesh/src/friend.c
@@ -442,7 +442,8 @@ static int unseg_app_sdu_prepare(struct bt_mesh_friend 
*frnd,
                return 0;
        }
 
-       BT_DBG("Re-encrypting friend pdu");
+       BT_DBG("Re-encrypting friend pdu (SeqNum %06x -> %06x)",
+              meta.crypto.seq_num, bt_mesh.seq);
 
        err = unseg_app_sdu_decrypt(frnd, buf, &meta);
        if (err) {
@@ -450,6 +451,8 @@ static int unseg_app_sdu_prepare(struct bt_mesh_friend 
*frnd,
                return err;
        }
 
+       meta.crypto.seq_num = bt_mesh.seq;
+
        err = unseg_app_sdu_encrypt(frnd, buf, &meta);
        if (err) {
                BT_WARN("Re-encryption failed! %d", err);