tcp_cleanup_req_t *req;
clib_time_type_t now;
- now = transport_time_now (tc->c_thread_index);
+ now = tcp_time_now_us (tc->c_thread_index);
clib_fifo_add2 (wrk->pending_cleanups, req);
req->connection_index = tc->c_c_index;
req->free_time = now + tcp_cfg.cleanup_time;
/* We should have enough space for 40 bytes of options */
ASSERT (tc->snd_mss > 45);
- /* If we use timestamp option, account for it */
+ /* If we use timestamp option, account for it and make sure
+ * the options are 4-byte aligned */
if (tcp_opts_tstamp (&tc->rcv_opts))
- tc->snd_mss -= TCP_OPTION_LEN_TIMESTAMP;
+ tc->snd_mss -= TCP_OPTION_LEN_TIMESTAMP + 2 /* alignment */;
}
/**
* handshake may make it look as if time has flown in the opposite
* direction for us.
*/
- tcp_set_time_now (tcp_get_worker (vlib_get_thread_index ()));
+ tcp_update_time_now (tcp_get_worker (vlib_get_thread_index ()));
tcp_init_rcv_mss (tc);
tc->iss = tcp_generate_random_iss (tc);
return &tc->connection;
}
+static int
+tcp_set_attribute (tcp_connection_t *tc, transport_endpt_attr_t *attr)
+{
+ int rv = 0;
+
+ switch (attr->type)
+ {
+ case TRANSPORT_ENDPT_ATTR_NEXT_OUTPUT_NODE:
+ tc->next_node_index = attr->next_output_node & 0xffffffff;
+ tc->next_node_opaque = attr->next_output_node >> 32;
+ break;
+ case TRANSPORT_ENDPT_ATTR_MSS:
+ tc->mss = attr->mss;
+ tc->snd_mss = clib_min (tc->snd_mss, tc->mss);
+ break;
+ case TRANSPORT_ENDPT_ATTR_FLAGS:
+ if (attr->flags & TRANSPORT_ENDPT_ATTR_F_CSUM_OFFLOAD)
+ tc->cfg_flags |= TCP_CFG_F_NO_CSUM_OFFLOAD;
+ else
+ tc->cfg_flags &= ~TCP_CFG_F_NO_CSUM_OFFLOAD;
+ if (attr->flags & TRANSPORT_ENDPT_ATTR_F_GSO)
+ {
+ if (!(tc->cfg_flags & TCP_CFG_F_TSO))
+ tcp_check_gso (tc);
+ tc->cfg_flags &= ~TCP_CFG_F_NO_TSO;
+ }
+ else
+ {
+ tc->cfg_flags |= TCP_CFG_F_NO_TSO;
+ tc->cfg_flags &= ~TCP_CFG_F_TSO;
+ }
+ break;
+ case TRANSPORT_ENDPT_ATTR_CC_ALGO:
+ if (tc->cc_algo == tcp_cc_algo_get (attr->cc_algo))
+ break;
+ tcp_cc_cleanup (tc);
+ tc->cc_algo = tcp_cc_algo_get (attr->cc_algo);
+ tcp_cc_init (tc);
+ break;
+ default:
+ rv = -1;
+ break;
+ }
+
+ return rv;
+}
+
+static int
+tcp_get_attribute (tcp_connection_t *tc, transport_endpt_attr_t *attr)
+{
+ int rv = 0;
+ u64 non;
+
+ switch (attr->type)
+ {
+ case TRANSPORT_ENDPT_ATTR_NEXT_OUTPUT_NODE:
+ non = (u64) tc->next_node_opaque << 32 | tc->next_node_index;
+ attr->next_output_node = non;
+ break;
+ case TRANSPORT_ENDPT_ATTR_MSS:
+ attr->mss = tc->snd_mss;
+ break;
+ case TRANSPORT_ENDPT_ATTR_FLAGS:
+ attr->flags = 0;
+ if (!(tc->cfg_flags & TCP_CFG_F_NO_CSUM_OFFLOAD))
+ attr->flags |= TRANSPORT_ENDPT_ATTR_F_CSUM_OFFLOAD;
+ if (tc->cfg_flags & TCP_CFG_F_TSO)
+ attr->flags |= TRANSPORT_ENDPT_ATTR_F_GSO;
+ break;
+ case TRANSPORT_ENDPT_ATTR_CC_ALGO:
+ attr->cc_algo = tc->cc_algo - tcp_main.cc_algos;
+ break;
+ default:
+ rv = -1;
+ break;
+ }
+
+ return rv;
+}
+
+static int
+tcp_session_attribute (u32 conn_index, u32 thread_index, u8 is_get,
+ transport_endpt_attr_t *attr)
+{
+ tcp_connection_t *tc = tcp_connection_get (conn_index, thread_index);
+
+ if (PREDICT_FALSE (!tc))
+ return -1;
+
+ if (is_get)
+ return tcp_get_attribute (tc, attr);
+ else
+ return tcp_set_attribute (tc, attr);
+}
+
static u16
tcp_session_cal_goal_size (tcp_connection_t * tc)
{
{
tcp_worker_ctx_t *wrk = tcp_get_worker (thread_index);
- tcp_set_time_now (wrk);
+ tcp_set_time_now (wrk, now);
tcp_handle_cleanups (wrk, now);
tcp_timer_expire_timers (&wrk->timer_wheel, now);
tcp_dispatch_pending_timers (wrk);
.get_connection = tcp_session_get_transport,
.get_listener = tcp_session_get_listener,
.get_half_open = tcp_half_open_session_get_transport,
+ .attribute = tcp_session_attribute,
.connect = tcp_session_open,
.close = tcp_session_close,
.cleanup = tcp_session_cleanup,
vec_reset_length (wrk->pending_deq_acked);
vec_reset_length (wrk->pending_disconnects);
vec_reset_length (wrk->pending_resets);
- wrk->vm = vlib_mains[thread];
+ wrk->vm = vlib_get_main_by_index (thread);
wrk->max_timers_per_loop = 10;
if (thread > 0)