gfwleak/tango-tsg-service-chaining-engine
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TSG-13921 tsg-service-chaining-engine支持与mrzcpd保活

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This commit is contained in:
luwenpeng
2023-02-24 11:49:25 +08:00
parent de2425e1de
commit 57cd21ae53
1 changed files with 34 additions and 0 deletions
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34
platform/src/packet_io.cpp
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@@ -163,6 +163,10 @@ static int handle_session_resetall(struct metadata *meta, struct ctrl_pkt_parser
static void session_value_free_cb(void *ctx);
// return 0 : not keepalive packet
// return 1 : is keepalive packet
static int marsio_buff_is_keepalive(marsio_buff_t *rx_buff);
/******************************************************************************
* API Definition
******************************************************************************/
@@ -334,6 +338,14 @@ int packet_io_polling_nf_interface(struct packet_io *handle, int thread_seq, voi
{
marsio_buff_t *rx_buff = rx_buffs[j];
int raw_len = marsio_buff_datalen(rx_buff);
if (marsio_buff_is_keepalive(rx_buff))
{
throughput_metrics_inc(&g_metrics->keepalive_packet_rx, 1, raw_len);
marsio_send_burst(handle->dev_nf_interface.mr_path, thread_seq, &rx_buff, 1);
continue;
}
if (marsio_buff_is_ctrlbuf(rx_buff))
{
handle_control_packet(handle, rx_buff, thread_seq, ctx);
@@ -1331,3 +1343,25 @@ static void session_value_free_cb(void *ctx)
struct session_ctx *s_ctx = (struct session_ctx *)ctx;
session_ctx_free(s_ctx);
}
// return 0 : not keepalive packet
// return 1 : is keepalive packet
static int marsio_buff_is_keepalive(marsio_buff_t *rx_buff)
{
int raw_len = marsio_buff_datalen(rx_buff);
char *raw_data = marsio_buff_mtod(rx_buff);
if (raw_data == NULL || raw_len == 0)
{
return 0;
}
struct ethhdr *eth_hdr = (struct ethhdr *)raw_data;
if (eth_hdr->h_proto == 0xAAAA)
{
return 1;
}
else
{
return 0;
}
}