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-rw-r--r--src/plugins/vrrp/vrrp_packet.c3
-rw-r--r--src/vlib/drop.c2
-rw-r--r--src/vlib/main.c11
-rw-r--r--src/vlib/node.c2
-rw-r--r--src/vlib/node.h3
-rw-r--r--src/vlib/node_funcs.h3
-rw-r--r--src/vlib/threads.c11
-rw-r--r--src/vnet/ipfix-export/flow_report.c3
-rw-r--r--src/vnet/unix/tuntap.c4
-rw-r--r--test/test_vlib.py103
10 files changed, 129 insertions, 16 deletions
diff --git a/src/plugins/vrrp/vrrp_packet.c b/src/plugins/vrrp/vrrp_packet.c
index 0ae73aa9d0a..756ec8b2e89 100644
--- a/src/plugins/vrrp/vrrp_packet.c
+++ b/src/plugins/vrrp/vrrp_packet.c
@@ -338,8 +338,7 @@ vrrp_adv_send (vrrp_vr_t * vr, int shutdown)
if (-1 == vrrp_adv_l3_build (vr, b, dst))
{
- vlib_frame_free (vm, vlib_node_get_runtime (vm, node_index),
- to_frame);
+ vlib_frame_free (vm, to_frame);
vlib_buffer_free (vm, bi, n_buffers);
return -1;
}
diff --git a/src/vlib/drop.c b/src/vlib/drop.c
index d353d727c76..2a10225eb7a 100644
--- a/src/vlib/drop.c
+++ b/src/vlib/drop.c
@@ -236,7 +236,7 @@ process_drop_punt (vlib_main_t * vm,
/* If there is no punt function, free the frame as well. */
if (disposition == ERROR_DISPOSITION_PUNT && !vm->os_punt_frame)
- vlib_frame_free (vm, node, frame);
+ vlib_frame_free (vm, frame);
}
else
vm->os_punt_frame (vm, node, frame);
diff --git a/src/vlib/main.c b/src/vlib/main.c
index 9c7d6f58991..964bc4a04e9 100644
--- a/src/vlib/main.c
+++ b/src/vlib/main.c
@@ -106,6 +106,7 @@ vlib_frame_alloc_to_node (vlib_main_t * vm, u32 to_node_index,
f->vector_offset = to_node->vector_offset;
f->aux_offset = to_node->aux_offset;
f->flags = 0;
+ f->frame_size_index = to_node->frame_size_index;
fs->n_alloc_frames += 1;
@@ -186,17 +187,15 @@ vlib_put_frame_to_node (vlib_main_t * vm, u32 to_node_index, vlib_frame_t * f)
/* Free given frame. */
void
-vlib_frame_free (vlib_main_t * vm, vlib_node_runtime_t * r, vlib_frame_t * f)
+vlib_frame_free (vlib_main_t *vm, vlib_frame_t *f)
{
vlib_node_main_t *nm = &vm->node_main;
- vlib_node_t *node;
vlib_frame_size_t *fs;
ASSERT (vm == vlib_get_main ());
ASSERT (f->frame_flags & VLIB_FRAME_IS_ALLOCATED);
- node = vlib_get_node (vm, r->node_index);
- fs = vec_elt_at_index (nm->frame_sizes, node->frame_size_index);
+ fs = vec_elt_at_index (nm->frame_sizes, f->frame_size_index);
ASSERT (f->frame_flags & VLIB_FRAME_IS_ALLOCATED);
@@ -1171,7 +1170,7 @@ dispatch_pending_node (vlib_main_t * vm, uword pending_frame_index,
/* The node has gained a frame, implying packets from the current frame
were re-queued to this same node. we don't need the saved one
anymore */
- vlib_frame_free (vm, n, f);
+ vlib_frame_free (vm, f);
}
}
else
@@ -1179,7 +1178,7 @@ dispatch_pending_node (vlib_main_t * vm, uword pending_frame_index,
if (f->frame_flags & VLIB_FRAME_FREE_AFTER_DISPATCH)
{
ASSERT (!(n->flags & VLIB_NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH));
- vlib_frame_free (vm, n, f);
+ vlib_frame_free (vm, f);
}
}
diff --git a/src/vlib/node.c b/src/vlib/node.c
index c6a13fb15e0..4d1ef989e7d 100644
--- a/src/vlib/node.c
+++ b/src/vlib/node.c
@@ -577,7 +577,7 @@ null_node_fn (vlib_main_t * vm,
vlib_node_increment_counter (vm, node->node_index, 0, n_vectors);
vlib_buffer_free (vm, vlib_frame_vector_args (frame), n_vectors);
- vlib_frame_free (vm, node, frame);
+ vlib_frame_free (vm, frame);
return n_vectors;
}
diff --git a/src/vlib/node.h b/src/vlib/node.h
index 149232638ba..dbff6c1e1e0 100644
--- a/src/vlib/node.h
+++ b/src/vlib/node.h
@@ -389,6 +389,9 @@ typedef struct vlib_frame_t
/* Number of vector elements currently in frame. */
u16 n_vectors;
+ /* Index of frame size corresponding to allocated node. */
+ u16 frame_size_index;
+
/* Scalar and vector arguments to next node. */
u8 arguments[0];
} vlib_frame_t;
diff --git a/src/vlib/node_funcs.h b/src/vlib/node_funcs.h
index 0f9f30a13d0..86722705b66 100644
--- a/src/vlib/node_funcs.h
+++ b/src/vlib/node_funcs.h
@@ -1256,8 +1256,7 @@ vlib_node_vectors_per_main_loop_as_integer (vlib_main_t * vm, u32 node_index)
return v >> VLIB_LOG2_MAIN_LOOPS_PER_STATS_UPDATE;
}
-void
-vlib_frame_free (vlib_main_t * vm, vlib_node_runtime_t * r, vlib_frame_t * f);
+void vlib_frame_free (vlib_main_t *vm, vlib_frame_t *f);
/* Return the edge index if present, ~0 otherwise */
uword vlib_node_get_next (vlib_main_t * vm, uword node, uword next_node);
diff --git a/src/vlib/threads.c b/src/vlib/threads.c
index 5599c5b352b..adf225ba87f 100644
--- a/src/vlib/threads.c
+++ b/src/vlib/threads.c
@@ -913,6 +913,17 @@ vlib_worker_thread_node_refork (void)
vec_validate_aligned (old_counters_all_clear, j, CLIB_CACHE_LINE_BYTES);
vm_clone->error_main.counters_last_clear = old_counters_all_clear;
+ for (j = 0; j < vec_len (nm_clone->next_frames); j++)
+ {
+ vlib_next_frame_t *nf = &nm_clone->next_frames[j];
+ if ((nf->flags & VLIB_FRAME_IS_ALLOCATED) && nf->frame != NULL)
+ {
+ vlib_frame_t *f = nf->frame;
+ nf->frame = NULL;
+ vlib_frame_free (vm_clone, f);
+ }
+ }
+
vec_free (nm_clone->next_frames);
nm_clone->next_frames = vec_dup_aligned (nm->next_frames,
CLIB_CACHE_LINE_BYTES);
diff --git a/src/vnet/ipfix-export/flow_report.c b/src/vnet/ipfix-export/flow_report.c
index cf23ccd7815..de4c72c437f 100644
--- a/src/vnet/ipfix-export/flow_report.c
+++ b/src/vnet/ipfix-export/flow_report.c
@@ -484,8 +484,7 @@ flow_report_process_send (vlib_main_t *vm, flow_report_main_t *frm,
vlib_put_frame_to_node (vm, next_node, nf);
else
{
- vlib_node_runtime_t *rt = vlib_node_get_runtime (vm, next_node);
- vlib_frame_free (vm, rt, nf);
+ vlib_frame_free (vm, nf);
}
}
}
diff --git a/src/vnet/unix/tuntap.c b/src/vnet/unix/tuntap.c
index 1ce13e79254..b75b1f670b9 100644
--- a/src/vnet/unix/tuntap.c
+++ b/src/vnet/unix/tuntap.c
@@ -912,7 +912,7 @@ tuntap_punt_frame (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
tuntap_tx (vm, node, frame);
- vlib_frame_free (vm, node, frame);
+ vlib_frame_free (vm, frame);
}
/**
@@ -930,7 +930,7 @@ tuntap_nopunt_frame (vlib_main_t * vm,
u32 *buffers = vlib_frame_vector_args (frame);
uword n_packets = frame->n_vectors;
vlib_buffer_free (vm, buffers, n_packets);
- vlib_frame_free (vm, node, frame);
+ vlib_frame_free (vm, frame);
}
/* *INDENT-OFF* */
diff --git a/test/test_vlib.py b/test/test_vlib.py
index 76a55e65a03..7caeb0227bf 100644
--- a/test/test_vlib.py
+++ b/test/test_vlib.py
@@ -7,6 +7,9 @@ import signal
from config import config
from framework import VppTestCase, VppTestRunner
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath
+from scapy.layers.inet import IP, ICMP
+from scapy.layers.l2 import Ether
+from scapy.packet import Raw
@unittest.skipUnless(config.gcov, "part of code coverage tests")
@@ -220,5 +223,105 @@ class TestVlib(VppTestCase):
self.logger.info(cmd + " FAIL retval " + str(r.retval))
+class TestVlibFrameLeak(VppTestCase):
+ """Vlib Frame Leak Test Cases"""
+
+ vpp_worker_count = 1
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestVlibFrameLeak, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestVlibFrameLeak, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestVlibFrameLeak, self).setUp()
+ # create 1 pg interface
+ self.create_pg_interfaces(range(1))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestVlibFrameLeak, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_vlib_mw_refork_frame_leak(self):
+ """Vlib worker thread refork leak test case"""
+ icmp_id = 0xB
+ icmp_seq = 5
+ icmp_load = b"\x0a" * 18
+ pkt = (
+ Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
+ / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4)
+ / ICMP(id=icmp_id, seq=icmp_seq)
+ / Raw(load=icmp_load)
+ )
+
+ # Send a packet
+ self.pg0.add_stream(pkt)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+
+ self.assertEquals(len(rx), 1)
+ rx = rx[0]
+ ether = rx[Ether]
+ ipv4 = rx[IP]
+
+ self.assertEqual(ether.src, self.pg0.local_mac)
+ self.assertEqual(ether.dst, self.pg0.remote_mac)
+
+ self.assertEqual(ipv4.src, self.pg0.local_ip4)
+ self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
+
+ # Save allocated frame count
+ frame_allocated = {}
+ for fs in self.vapi.cli("show vlib frame-allocation").splitlines()[1:]:
+ spl = fs.split()
+ thread = int(spl[0])
+ size = int(spl[1])
+ alloc = int(spl[2])
+ key = (thread, size)
+ frame_allocated[key] = alloc
+
+ # cause reforks
+ _ = self.create_loopback_interfaces(1)
+
+ # send the same packet
+ self.pg0.add_stream(pkt)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+
+ self.assertEquals(len(rx), 1)
+ rx = rx[0]
+ ether = rx[Ether]
+ ipv4 = rx[IP]
+
+ self.assertEqual(ether.src, self.pg0.local_mac)
+ self.assertEqual(ether.dst, self.pg0.remote_mac)
+
+ self.assertEqual(ipv4.src, self.pg0.local_ip4)
+ self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
+
+ # Check that no frame were leaked during refork
+ for fs in self.vapi.cli("show vlib frame-allocation").splitlines()[1:]:
+ spl = fs.split()
+ thread = int(spl[0])
+ size = int(spl[1])
+ alloc = int(spl[2])
+ key = (thread, size)
+ self.assertEqual(frame_allocated[key], alloc)
+
+
if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)