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nr pdcp: bugfix: D/C bit set only for DRBs

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This commit is contained in:
Cedric Roux
2021-03-30 11:57:51 +02:00
parent 77c36950d4
commit 14c823037f
1 changed files with 10 additions and 2 deletions
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openair2/LAYER2/nr_pdcp/nr_pdcp_entity.c
+10 -2
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@@ -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;