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avb: handle command errors better

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Ignore unknown commands.
Set the right reply message type for unsupported methods.
This commit is contained in:
Wim Taymans 2022-04-06 16:46:02 +02:00
parent fa9fcbe964
commit a34417eed0
1 changed files with 10 additions and 14 deletions
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24
src/modules/module-avb/acmp.c
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@ -99,13 +99,14 @@ struct msg_info {
int (*handle) (struct acmp *acmp, uint64_t now, const void *m, int len);
};
static int reply_not_supported(struct acmp *acmp, const void *m, int len)
static int reply_not_supported(struct acmp *acmp, uint8_t type, const void *m, int len)
{
struct server *server = acmp->server;
uint8_t buf[len];
struct avb_packet_acmp *reply = (struct avb_packet_acmp*)buf;
memcpy(reply, m, len);
AVB_PACKET_ACMP_SET_MESSAGE_TYPE(reply, type);
AVB_PACKET_ACMP_SET_STATUS(reply, AVB_ACMP_STATUS_NOT_SUPPORTED);
return avb_server_send_packet(server, reply->hdr.eth.src,
@ -288,7 +289,7 @@ static int handle_connect_rx_command(struct acmp *acmp, uint64_t now, const void
AVB_TSN_ETH, cmd, len);
}
static int handle_connect_rx_response(struct acmp *acmp, uint64_t now, const void *m, int len)
static int handle_ignore(struct acmp *acmp, uint64_t now, const void *m, int len)
{
return 0;
}
@ -314,26 +315,21 @@ static int handle_disconnect_rx_command(struct acmp *acmp, uint64_t now, const v
AVB_TSN_ETH, cmd, len);
}
static int handle_disconnect_rx_response(struct acmp *acmp, uint64_t now, const void *p, int len)
{
return 0;
}
static const struct msg_info msg_info[] = {
{ AVB_ACMP_MESSAGE_TYPE_CONNECT_TX_COMMAND, "connect-tx-command", handle_connect_tx_command, },
{ AVB_ACMP_MESSAGE_TYPE_CONNECT_TX_RESPONSE, "connect-tx-response", handle_connect_tx_response, },
{ AVB_ACMP_MESSAGE_TYPE_DISCONNECT_TX_COMMAND, "disconnect-tx-command", handle_disconnect_tx_command, },
{ AVB_ACMP_MESSAGE_TYPE_DISCONNECT_TX_RESPONSE, "disconnect-tx-response", handle_disconnect_tx_response, },
{ AVB_ACMP_MESSAGE_TYPE_GET_TX_STATE_COMMAND, "get-tx-state-command", NULL, },
{ AVB_ACMP_MESSAGE_TYPE_GET_TX_STATE_RESPONSE, "get-tx-state-response", NULL, },
{ AVB_ACMP_MESSAGE_TYPE_GET_TX_STATE_RESPONSE, "get-tx-state-response", handle_ignore, },
{ AVB_ACMP_MESSAGE_TYPE_CONNECT_RX_COMMAND, "connect-rx-command", handle_connect_rx_command, },
{ AVB_ACMP_MESSAGE_TYPE_CONNECT_RX_RESPONSE, "connect-rx-response", handle_connect_rx_response, },
{ AVB_ACMP_MESSAGE_TYPE_CONNECT_RX_RESPONSE, "connect-rx-response", handle_ignore, },
{ AVB_ACMP_MESSAGE_TYPE_DISCONNECT_RX_COMMAND, "disconnect-rx-command", handle_disconnect_rx_command, },
{ AVB_ACMP_MESSAGE_TYPE_DISCONNECT_RX_RESPONSE, "disconnect-rx-response", handle_disconnect_rx_response, },
{ AVB_ACMP_MESSAGE_TYPE_DISCONNECT_RX_RESPONSE, "disconnect-rx-response", handle_ignore, },
{ AVB_ACMP_MESSAGE_TYPE_GET_RX_STATE_COMMAND, "get-rx-state-command", NULL, },
{ AVB_ACMP_MESSAGE_TYPE_GET_RX_STATE_RESPONSE, "get-rx-state-response", NULL, },
{ AVB_ACMP_MESSAGE_TYPE_GET_RX_STATE_RESPONSE, "get-rx-state-response", handle_ignore, },
{ AVB_ACMP_MESSAGE_TYPE_GET_TX_CONNECTION_COMMAND, "get-tx-connection-command", NULL, },
{ AVB_ACMP_MESSAGE_TYPE_GET_TX_CONNECTION_RESPONSE, "get-tx-connection-response", NULL, },
{ AVB_ACMP_MESSAGE_TYPE_GET_TX_CONNECTION_RESPONSE, "get-tx-connection-response", handle_ignore, },
};
static inline const struct msg_info *find_msg_info(uint16_t type, const char *name)
@ -368,12 +364,12 @@ static int acmp_message(void *data, uint64_t now, const void *message, int len)
info = find_msg_info(message_type, NULL);
if (info == NULL)
return reply_not_supported(acmp, p, len);
return 0;
pw_log_info("got ACMP message %s", info->name);
if (info->handle == NULL)
return reply_not_supported(acmp, p, len);
return reply_not_supported(acmp, message_type | 1, p, len);
return info->handle(acmp, now, p, len);
}