From 14c823037f89d924aadb7d638762142e2c2f5129 Mon Sep 17 00:00:00 2001 From: Cedric Roux <cedric.roux@eurecom.fr> Date: Wed, 17 Mar 2021 16:04:11 +0100 Subject: [PATCH] nr pdcp: bugfix: D/C bit set only for DRBs --- openair2/LAYER2/nr_pdcp/nr_pdcp_entity.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/openair2/LAYER2/nr_pdcp/nr_pdcp_entity.c b/openair2/LAYER2/nr_pdcp/nr_pdcp_entity.c index eda6888ecd..c3ccc7710e 100644 --- a/openair2/LAYER2/nr_pdcp/nr_pdcp_entity.c +++ b/openair2/LAYER2/nr_pdcp/nr_pdcp_entity.c @@ -140,16 +140,24 @@ static void nr_pdcp_entity_recv_sdu(nr_pdcp_entity_t *entity, int sn; int header_size; char buf[size+3+4]; + int dc_bit; count = entity->tx_next; sn = entity->tx_next & entity->sn_max; + /* D/C bit is only to be set for DRBs */ + if (entity->type == NR_PDCP_DRB_AM || entity->type == NR_PDCP_DRB_UM) { + dc_bit = 0x80; + } else { + dc_bit = 0; + } + if (entity->sn_size == 12) { - buf[0] = 0x80 | ((sn >> 8) & 0xf); + buf[0] = dc_bit | ((sn >> 8) & 0xf); buf[1] = sn & 0xff; header_size = 2; } else { - buf[0] = 0x80 | ((sn >> 16) & 0x3); + buf[0] = dc_bit | ((sn >> 16) & 0x3); buf[1] = (sn >> 8) & 0xff; buf[2] = sn & 0xff; header_size = 3; -- 2.26.2