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authorDave Barach <dave@barachs.net>2017-02-23 17:11:26 -0500
committerDave Barach <openvpp@barachs.net>2017-02-24 12:17:01 +0000
commit26cd8c129567b48ed0e3610293251ca78fa67103 (patch)
tree627830df91fa440ebbf4635a72848f80d1c85de9 /src/vnet/span
parent02767e9f2eaf7ccfc4079f83d467ad2d3faee203 (diff)
VPP-650: handle buffer failure in vlib_buffer_copy(...)
Change-Id: I6aac48d780fcd935818221044eae50067f225175 Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/vnet/span')
-rw-r--r--src/vnet/span/node.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/src/vnet/span/node.c b/src/vnet/span/node.c
index 50d642c2f8b..5037c120ba5 100644
--- a/src/vnet/span/node.c
+++ b/src/vnet/span/node.c
@@ -83,11 +83,15 @@ span_mirror (vlib_main_t * vm, span_interface_t * si0, vlib_buffer_t * b0,
mirror_frames[i] = vnet_get_frame_to_sw_interface (vnm, i);
to_mirror_next = vlib_frame_vector_args (mirror_frames[i]);
to_mirror_next += mirror_frames[i]->n_vectors;
+ /* This can fail */
c0 = vlib_buffer_copy (vm, b0);
- vnet_buffer (c0)->sw_if_index[VLIB_TX] = i;
- c0->flags |= VNET_BUFFER_SPAN_CLONE;
- to_mirror_next[0] = vlib_get_buffer_index (vm, c0);
- mirror_frames[i]->n_vectors++;
+ if (PREDICT_TRUE(c0 != 0))
+ {
+ vnet_buffer (c0)->sw_if_index[VLIB_TX] = i;
+ c0->flags |= VNET_BUFFER_SPAN_CLONE;
+ to_mirror_next[0] = vlib_get_buffer_index (vm, c0);
+ mirror_frames[i]->n_vectors++;
+ }
}));
/* *INDENT-ON* */
}