session->vpp_handle = mp->handle;
session->session_state = VCL_STATE_READY;
+ if (mp->rmt.is_ip4)
+ {
+ session->original_dst_ip4 = mp->original_dst_ip4;
+ session->original_dst_port = mp->original_dst_port;
+ }
session->transport.rmt_port = mp->rmt.port;
session->transport.is_ip4 = mp->rmt.is_ip4;
clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
{
session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
vcl_segment_detach (msg->segment_handle);
- VDBG (1, "Unmapped segment: %d", msg->segment_handle);
+ VDBG (1, "Unmapped segment: %lx", msg->segment_handle);
}
static void
s->vep.et_mask = VEP_DEFAULT_ET_MASK;
s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
s->vep.ev = *event;
+ s->vep.ev.events |= EPOLLHUP | EPOLLERR;
s->flags &= ~VCL_SESSION_F_IS_VEP;
s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
vep_session->vep.next_sh = session_handle;
- if (event->events & EPOLLOUT)
- vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
-
- /* Generate EPOLLOUT if tx fifo not full */
- if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
+ if ((event->events & EPOLLOUT))
{
- vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
- SESSION_IO_EVT_TX);
- add_evt = 1;
+ int write_ready = vcl_session_write_ready (s);
+
+ vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
+ if (write_ready > 0)
+ {
+ /* Generate EPOLLOUT if tx fifo not full */
+ vcl_epoll_ctl_add_unhandled_event (
+ wrk, s, event->events & EPOLLET, SESSION_IO_EVT_TX);
+ add_evt = 1;
+ }
+ else
+ {
+ vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
+ }
}
/* Generate EPOLLIN if rx fifo has data */
if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
goto done;
}
- if (event->events & EPOLLOUT)
- vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
- else
- vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
-
- /* Generate EPOLLOUT if session write ready nd event was not on */
- if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT) &&
- (vcl_session_write_ready (s) > 0))
+ /* Generate EPOLLOUT if session write ready and event was not on */
+ if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT))
{
- vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
- SESSION_IO_EVT_TX);
+ /* Fifo size load acq synchronized with update store rel */
+ int write_ready = vcl_session_write_ready (s);
+
+ vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
+ if (write_ready > 0)
+ vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
+ SESSION_IO_EVT_TX);
+ else
+ /* Request deq ntf in case dequeue happened while updating flag */
+ vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
}
+ else if (!(event->events & EPOLLOUT))
+ vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
+
/* Generate EPOLLIN if session read ready and event was not on */
if ((event->events & EPOLLIN) && !(s->vep.ev.events & EPOLLIN) &&
(vcl_session_read_ready (s) > 0))
}
s->vep.et_mask = VEP_DEFAULT_ET_MASK;
s->vep.ev = *event;
+ s->vep.ev.events |= EPOLLHUP | EPOLLERR;
VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
vep_handle, session_handle, event->events, event->data.u64);
return rv;
}
+always_inline u8
+vcl_ep_session_needs_evt (vcl_session_t *s, u32 evt)
+{
+ /* No event if not epolled / events reset on hup or level-trigger on */
+ return ((s->vep.ev.events & evt) &&
+ s->vep.lt_next == VCL_INVALID_SESSION_INDEX);
+}
+
static inline void
vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
struct epoll_event *events, u32 * num_ev)
if (vcl_session_is_closed (s))
break;
vcl_fifo_rx_evt_valid_or_break (s);
- session_events = s->vep.ev.events;
- if (!(EPOLLIN & s->vep.ev.events) ||
- (s->flags & VCL_SESSION_F_HAS_RX_EVT) ||
- (s->vep.lt_next != VCL_INVALID_SESSION_INDEX))
+ if (!vcl_ep_session_needs_evt (s, EPOLLIN) ||
+ (s->flags & VCL_SESSION_F_HAS_RX_EVT))
break;
+ session_events = s->vep.ev.events;
add_event = 1;
events[*num_ev].events = EPOLLIN;
session_evt_data = s->vep.ev.data.u64;
break;
svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ? s->ct_tx_fifo :
s->tx_fifo);
- session_events = s->vep.ev.events;
- if (!(EPOLLOUT & session_events))
+ if (!vcl_ep_session_needs_evt (s, EPOLLOUT))
break;
+ session_events = s->vep.ev.events;
add_event = 1;
events[*num_ev].events = EPOLLOUT;
session_evt_data = s->vep.ev.data.u64;
s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
else
s = vcl_session_get (wrk, e->session_index);
- if (!s)
+ if (!s || !vcl_ep_session_needs_evt (s, EPOLLIN))
break;
- session_events = s->vep.ev.events;
sid = s->session_index;
- if (!(EPOLLIN & session_events) ||
- (s->vep.lt_next != VCL_INVALID_SESSION_INDEX))
- break;
+ session_events = s->vep.ev.events;
add_event = 1;
events[*num_ev].events = EPOLLIN;
session_evt_data = s->vep.ev.data.u64;
else
sid = e->session_index;
s = vcl_session_get (wrk, sid);
- if (vcl_session_is_closed (s))
- break;
- session_events = s->vep.ev.events;
- /* Generate EPOLLOUT because there's no connected event */
- if (!(EPOLLOUT & session_events))
+ if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLOUT))
break;
/* We didn't have a fifo when the event was added */
vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
add_event = 1;
+ session_events = s->vep.ev.events;
+ /* Generate EPOLLOUT because there's no connected event */
events[*num_ev].events = EPOLLOUT;
session_evt_data = s->vep.ev.data.u64;
if (s->session_state == VCL_STATE_DETACHED)
- events[*num_ev].events |= EPOLLHUP;
+ {
+ events[*num_ev].events |= EPOLLHUP;
+ s->vep.ev.events = 0;
+ }
break;
case SESSION_CTRL_EVT_DISCONNECTED:
if (!e->postponed)
s = vcl_session_get (wrk, e->session_index);
s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
}
- if (vcl_session_is_closed (s) ||
- !(s->flags & VCL_SESSION_F_IS_VEP_SESSION))
+ if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLHUP))
{
if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
vcl_session_free (wrk, s);
events[*num_ev].events = EPOLLHUP;
}
session_evt_data = s->vep.ev.data.u64;
-
+ s->vep.ev.events = 0;
break;
case SESSION_CTRL_EVT_BOUND:
vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
s = vcl_session_get (wrk, sid);
s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
}
- if (vcl_session_is_closed (s) ||
- !(s->flags & VCL_SESSION_F_IS_VEP_SESSION))
+ if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLHUP))
{
if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
vcl_session_free (wrk, s);
events[*num_ev].events |= EPOLLIN;
}
session_evt_data = s->vep.ev.data.u64;
+ s->vep.ev.events = 0;
break;
case SESSION_CTRL_EVT_UNLISTEN_REPLY:
vcl_session_unlisten_reply_handler (wrk, e->data);
if (add_event)
{
+ ASSERT (s->flags & VCL_SESSION_F_IS_VEP_SESSION);
events[*num_ev].data.u64 = session_evt_data;
if (EPOLLONESHOT & session_events)
{
s = vcl_session_get (wrk, sid);
- s->vep.ev.events = 0;
+ if (!(events[*num_ev].events & EPOLLHUP))
+ s->vep.ev.events = EPOLLHUP | EPOLLERR;
}
else if (!(EPOLLET & session_events))
{
s = vcl_session_get (wrk, next);
next = s->vep.lt_next;
+ if (s->vep.ev.events == 0)
+ {
+ vec_add1 (to_remove, s->session_index);
+ continue;
+ }
if ((s->vep.ev.events & EPOLLIN) && (rv = vcl_session_read_ready (s)))
{
add_event = 1;
{
events[*n_evts].events = evt_flags;
events[*n_evts].data.u64 = evt_data;
+ if (EPOLLONESHOT & s->vep.ev.events)
+ s->vep.ev.events = EPOLLHUP | EPOLLERR;
+ if (evt_flags & EPOLLHUP)
+ s->vep.ev.events = 0;
*n_evts += 1;
add_event = 0;
evt_flags = 0;
- if (EPOLLONESHOT & s->vep.ev.events)
- s->vep.ev.events = 0;
if (*n_evts == maxevents)
{
wrk->ep_lt_current = next;
rv = VPPCOM_EINVAL;
break;
+ case VPPCOM_ATTR_GET_ORIGINAL_DST:
+ if (!session->transport.is_ip4)
+ {
+ /* now original dst only support ipv4*/
+ rv = VPPCOM_EAFNOSUPPORT;
+ break;
+ }
+ if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*ep)) &&
+ ep->ip))
+ {
+ ep->is_ip4 = session->transport.is_ip4;
+ ep->port = session->original_dst_port;
+ clib_memcpy_fast (ep->ip, &session->original_dst_ip4,
+ sizeof (ip4_address_t));
+ *buflen = sizeof (*ep);
+ VDBG (1,
+ "VPPCOM_ATTR_GET_ORIGINAL_DST: sh %u, is_ip4 = %u, addr = %U"
+ " port %d",
+ session_handle, ep->is_ip4, vcl_format_ip4_address,
+ (ip4_address_t *) (&session->original_dst_ip4),
+ ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
+ clib_net_to_host_u16 (ep->port));
+ }
+ else
+ rv = VPPCOM_EINVAL;
+ break;
+
case VPPCOM_ATTR_SET_LCL_ADDR:
if (PREDICT_TRUE (buffer && buflen &&
(*buflen >= sizeof (*ep)) && ep->ip))
Code Review / vpp.git / blobdiff