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module-avb: fix legacy AECP handlers reading payload at wrong offset

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handle_acquire_entity_avb_legacy() and handle_lock_entity_avb_legacy()
incorrectly treated the full ethernet frame pointer as the AEM packet
pointer, causing p->payload to read descriptor_type and descriptor_id
from the wrong offset. Fix by properly skipping the ethernet header,
matching the pattern used by all other AEM command handlers.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Christian F.K. Schaller 2026-04-07 13:07:18 -04:00 • committed by Wim Taymans
parent 3f386ecd34
commit 4e62826e01
1 changed files with 4 additions and 2 deletions
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6
src/modules/module-avb/aecp-aem.c
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@ -27,7 +27,8 @@ static int handle_acquire_entity_avb_legacy(struct aecp *aecp, int64_t now,
const void *m, int len)
{
struct server *server = aecp->server;
const struct avb_packet_aecp_aem *p = m;
const struct avb_ethernet_header *h = m;
const struct avb_packet_aecp_aem *p = SPA_PTROFF(h, sizeof(*h), void);
const struct avb_packet_aecp_aem_acquire *ae;
const struct descriptor *desc;
uint16_t desc_type, desc_id;
@ -53,7 +54,8 @@ static int handle_lock_entity_avb_legacy(struct aecp *aecp, int64_t now,
const void *m, int len)
{
struct server *server = aecp->server;
const struct avb_packet_aecp_aem *p = m;
const struct avb_ethernet_header *h = m;
const struct avb_packet_aecp_aem *p = SPA_PTROFF(h, sizeof(*h), void);
const struct avb_packet_aecp_aem_acquire *ae;
const struct descriptor *desc;
uint16_t desc_type, desc_id;