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Commit 2439efc7 authored by Cedric Roux's avatar Cedric Roux
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NR PDCP: SRBs always have MAC-I, even when integrity is not active

parent f207b202
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Showing with 9 additions and 2 deletions
openair2/LAYER2/nr_pdcp/nr_pdcp_entity.c
View file @ 2439efc7
......@@ -65,7 +65,9 @@ static void nr_pdcp_entity_recv_pdu(nr_pdcp_entity_t *entity,
header_size = 3;
}
if (entity->has_integrity) {
/* SRBs always have MAC-I, even if integrity is not active */
if (entity->has_integrity
|| entity->type == NR_PDCP_SRB) {
integrity_size = 4;
} else {
integrity_size = 0;
......@@ -180,7 +182,9 @@ static void nr_pdcp_entity_recv_sdu(nr_pdcp_entity_t *entity,
header_size = 3;
}
if (entity->has_integrity) {
/* SRBs always have MAC-I, even if integrity is not active */
if (entity->has_integrity
|| entity->type == NR_PDCP_SRB) {
integrity_size = 4;
} else {
integrity_size = 0;
......@@ -193,6 +197,9 @@ static void nr_pdcp_entity_recv_sdu(nr_pdcp_entity_t *entity,
(unsigned char *)buf + header_size + size,
(unsigned char *)buf, header_size + size,
entity->rb_id, count, entity->is_gnb ? 1 : 0);
else if (integrity_size == 4)
/* set MAC-I to 0 for SRBs with integrity not active */
memset(buf + header_size + size, 0, 4);
if (entity->has_ciphering)
entity->cipher(entity->security_context,
......
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