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-rw-r--r--src/vcl/vcl_locked.c15
-rw-r--r--src/vcl/vcl_private.h2
-rw-r--r--src/vcl/vppcom.c86
3 files changed, 49 insertions, 54 deletions
diff --git a/src/vcl/vcl_locked.c b/src/vcl/vcl_locked.c
index f6df0fbd5b7..8b0c66d4bdd 100644
--- a/src/vcl/vcl_locked.c
+++ b/src/vcl/vcl_locked.c
@@ -670,8 +670,19 @@ vls_listener_wrk_is_active (vcl_locked_session_t * vls, u32 wrk_index)
static void
vls_listener_wrk_start_listen (vcl_locked_session_t * vls, u32 wrk_index)
{
- vppcom_session_listen (vls_to_sh (vls), ~0);
- vls_listener_wrk_set (vls, wrk_index, 1 /* is_active */ );
+ vcl_worker_t *wrk;
+ vcl_session_t *ls;
+
+ wrk = vcl_worker_get (wrk_index);
+ ls = vcl_session_get (wrk, vls->session_index);
+
+ /* Listen request already sent */
+ if (ls->flags & VCL_SESSION_F_PENDING_LISTEN)
+ return;
+
+ vcl_send_session_listen (wrk, ls);
+
+ vls_listener_wrk_set (vls, wrk_index, 1 /* is_active */);
}
static void
diff --git a/src/vcl/vcl_private.h b/src/vcl/vcl_private.h
index 93e76565ee7..a3ae42714d5 100644
--- a/src/vcl/vcl_private.h
+++ b/src/vcl/vcl_private.h
@@ -142,6 +142,7 @@ typedef enum vcl_session_flags_
VCL_SESSION_F_WR_SHUTDOWN = 1 << 5,
VCL_SESSION_F_PENDING_DISCONNECT = 1 << 6,
VCL_SESSION_F_PENDING_FREE = 1 << 7,
+ VCL_SESSION_F_PENDING_LISTEN = 1 << 8,
} __clib_packed vcl_session_flags_t;
typedef struct vcl_session_
@@ -726,6 +727,7 @@ int vcl_segment_attach (u64 segment_handle, char *name,
ssvm_segment_type_t type, int fd);
void vcl_segment_detach (u64 segment_handle);
void vcl_segment_detach_segments (u32 *seg_indices);
+void vcl_send_session_listen (vcl_worker_t *wrk, vcl_session_t *s);
void vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s);
int vcl_segment_attach_session (uword segment_handle, uword rxf_offset,
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c
index a800b44aaa0..1b0da450781 100644
--- a/src/vcl/vppcom.c
+++ b/src/vcl/vppcom.c
@@ -51,8 +51,8 @@ vcl_msg_add_ext_config (vcl_session_t *s, uword *offset)
clib_memcpy_fast (c->data, s->ext_config, s->ext_config->len);
}
-static void
-vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
+void
+vcl_send_session_listen (vcl_worker_t *wrk, vcl_session_t *s)
{
app_session_evt_t _app_evt, *app_evt = &_app_evt;
session_listen_msg_t *mp;
@@ -80,6 +80,7 @@ vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
clib_mem_free (s->ext_config);
s->ext_config = 0;
}
+ s->flags |= VCL_SESSION_F_PENDING_LISTEN;
}
static void
@@ -554,6 +555,7 @@ vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
session->transport.lcl_port = mp->lcl_port;
vcl_session_table_add_listener (wrk, mp->handle, sid);
session->session_state = VCL_STATE_LISTEN;
+ session->flags &= ~VCL_SESSION_F_PENDING_LISTEN;
if (vcl_session_is_cl (session))
{
@@ -1232,7 +1234,7 @@ vppcom_session_unbind (u32 session_handle)
vcl_send_session_unlisten (wrk, session);
- VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
+ VDBG (0, "session %u [0x%llx]: sending unbind!", session->session_index,
session->vpp_handle);
vcl_evt (VCL_EVT_UNBIND, session);
@@ -1693,29 +1695,6 @@ vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
return VPPCOM_OK;
}
-static int
-validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
-{
- if (ls->flags & VCL_SESSION_F_IS_VEP)
- {
- VDBG (0, "ERROR: cannot accept on epoll session %u!",
- ls->session_index);
- return VPPCOM_EBADFD;
- }
-
- if ((ls->session_state != VCL_STATE_LISTEN)
- && (!vcl_session_is_connectable_listener (wrk, ls)))
- {
- VDBG (0,
- "ERROR: session [0x%llx]: not in listen state! state 0x%x"
- " (%s)",
- ls->vpp_handle, ls->session_state,
- vcl_session_state_str (ls->session_state));
- return VPPCOM_EBADFD;
- }
- return VPPCOM_OK;
-}
-
int
vppcom_unformat_proto (uint8_t * proto, char *proto_str)
{
@@ -1749,38 +1728,41 @@ vppcom_unformat_proto (uint8_t * proto, char *proto_str)
}
int
-vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
- uint32_t flags)
+vppcom_session_accept (uint32_t ls_handle, vppcom_endpt_t *ep, uint32_t flags)
{
- u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
+ u32 client_session_index = ~0, ls_index, accept_flags = 0;
vcl_worker_t *wrk = vcl_worker_get_current ();
session_accepted_msg_t accepted_msg;
- vcl_session_t *listen_session = 0;
- vcl_session_t *client_session = 0;
+ vcl_session_t *ls, *client_session = 0;
vcl_session_msg_t *evt;
u8 is_nonblocking;
- int rv;
again:
- listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
- if (!listen_session)
+ ls = vcl_session_get_w_handle (wrk, ls_handle);
+ if (!ls)
return VPPCOM_EBADFD;
- listen_session_index = listen_session->session_index;
- if ((rv = validate_args_session_accept_ (wrk, listen_session)))
- return rv;
+ if ((ls->session_state != VCL_STATE_LISTEN) &&
+ (ls->session_state != VCL_STATE_LISTEN_NO_MQ) &&
+ (!vcl_session_is_connectable_listener (wrk, ls)))
+ {
+ VDBG (0, "ERROR: session [0x%llx]: not in listen state! state (%s)",
+ ls->vpp_handle, vcl_session_state_str (ls->session_state));
+ return VPPCOM_EBADFD;
+ }
+
+ ls_index = ls->session_index;
- if (clib_fifo_elts (listen_session->accept_evts_fifo))
+ if (clib_fifo_elts (ls->accept_evts_fifo))
{
- clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
+ clib_fifo_sub2 (ls->accept_evts_fifo, evt);
accept_flags = evt->flags;
accepted_msg = evt->accepted_msg;
goto handle;
}
- is_nonblocking = vcl_session_has_attr (listen_session,
- VCL_SESS_ATTR_NONBLOCK);
+ is_nonblocking = vcl_session_has_attr (ls, VCL_SESS_ATTR_NONBLOCK);
while (1)
{
if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
@@ -1793,20 +1775,21 @@ again:
handle:
- client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
- listen_session_index);
+ client_session_index =
+ vcl_session_accepted_handler (wrk, &accepted_msg, ls_index);
if (client_session_index == VCL_INVALID_SESSION_INDEX)
return VPPCOM_ECONNABORTED;
- listen_session = vcl_session_get (wrk, listen_session_index);
+ ls = vcl_session_get (wrk, ls_index);
client_session = vcl_session_get (wrk, client_session_index);
if (flags & O_NONBLOCK)
vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
- VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
- " flags %d, is_nonblocking %u", listen_session->session_index,
- listen_session->vpp_handle, client_session_index,
+ VDBG (1,
+ "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
+ " flags %d, is_nonblocking %u",
+ ls->session_index, ls->vpp_handle, client_session_index,
client_session->vpp_handle, flags,
vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
@@ -1825,16 +1808,15 @@ handle:
VDBG (0,
"listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
"local: %U:%u",
- listen_session_handle, listen_session->vpp_handle,
- client_session_index, client_session->vpp_handle,
- vcl_format_ip46_address, &client_session->transport.rmt_ip,
+ ls_handle, ls->vpp_handle, client_session_index,
+ client_session->vpp_handle, vcl_format_ip46_address,
+ &client_session->transport.rmt_ip,
client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
clib_net_to_host_u16 (client_session->transport.rmt_port),
vcl_format_ip46_address, &client_session->transport.lcl_ip,
client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
clib_net_to_host_u16 (client_session->transport.lcl_port));
- vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
- client_session_index);
+ vcl_evt (VCL_EVT_ACCEPT, client_session, ls, client_session_index);
/*
* Session might have been closed already