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-rw-r--r--src/vnet/span/span.c60
1 files changed, 44 insertions, 16 deletions
diff --git a/src/vnet/span/span.c b/src/vnet/span/span.c
index 6ecd17895ef..2fd9cd87dfb 100644
--- a/src/vnet/span/span.c
+++ b/src/vnet/span/span.c
@@ -32,8 +32,15 @@ typedef enum
static_always_inline u32
span_dst_set (span_mirror_t * sm, u32 dst_sw_if_index, int enable)
{
- sm->mirror_ports =
- clib_bitmap_set (sm->mirror_ports, dst_sw_if_index, enable);
+ if (dst_sw_if_index == ~0)
+ {
+ ASSERT (enable == 0);
+ clib_bitmap_zero (sm->mirror_ports);
+ }
+ else
+ sm->mirror_ports =
+ clib_bitmap_set (sm->mirror_ports, dst_sw_if_index, enable);
+
u32 last = sm->num_mirror_ports;
sm->num_mirror_ports = clib_bitmap_count_set_bits (sm->mirror_ports);
return last;
@@ -68,9 +75,9 @@ span_add_delete_entry (vlib_main_t * vm,
u32 last_tx_ports_count = span_dst_set (txm, dst_sw_if_index, tx);
int enable_rx = last_rx_ports_count == 0 && rxm->num_mirror_ports == 1;
- int disable_rx = last_rx_ports_count == 1 && rxm->num_mirror_ports == 0;
+ int disable_rx = last_rx_ports_count > 0 && rxm->num_mirror_ports == 0;
int enable_tx = last_tx_ports_count == 0 && txm->num_mirror_ports == 1;
- int disable_tx = last_tx_ports_count == 1 && txm->num_mirror_ports == 0;
+ int disable_tx = last_tx_ports_count > 0 && txm->num_mirror_ports == 0;
switch (sf)
{
@@ -92,12 +99,29 @@ span_add_delete_entry (vlib_main_t * vm,
return VNET_API_ERROR_UNIMPLEMENTED;
}
- if (dst_sw_if_index > sm->max_sw_if_index)
+ if (dst_sw_if_index != ~0 && dst_sw_if_index > sm->max_sw_if_index)
sm->max_sw_if_index = dst_sw_if_index;
return 0;
}
+static uword
+unformat_span_state (unformat_input_t * input, va_list * args)
+{
+ span_state_t *state = va_arg (*args, span_state_t *);
+ if (unformat (input, "disable"))
+ *state = SPAN_DISABLE;
+ else if (unformat (input, "rx"))
+ *state = SPAN_RX;
+ else if (unformat (input, "tx"))
+ *state = SPAN_TX;
+ else if (unformat (input, "both"))
+ *state = SPAN_BOTH;
+ else
+ return 0;
+ return 1;
+}
+
static clib_error_t *
set_interface_span_command_fn (vlib_main_t * vm,
unformat_input_t * input,
@@ -106,8 +130,9 @@ set_interface_span_command_fn (vlib_main_t * vm,
span_main_t *sm = &span_main;
u32 src_sw_if_index = ~0;
u32 dst_sw_if_index = ~0;
- u8 state = SPAN_BOTH;
span_feat_t sf = SPAN_FEAT_DEVICE;
+ span_state_t state = SPAN_BOTH;
+ int state_set = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
@@ -117,18 +142,16 @@ set_interface_span_command_fn (vlib_main_t * vm,
else if (unformat (input, "destination %U", unformat_vnet_sw_interface,
sm->vnet_main, &dst_sw_if_index))
;
- else if (unformat (input, "disable"))
- state = SPAN_DISABLE;
- else if (unformat (input, "rx"))
- state = SPAN_RX;
- else if (unformat (input, "tx"))
- state = SPAN_TX;
- else if (unformat (input, "both"))
- state = SPAN_BOTH;
+ else if (unformat (input, "%U", unformat_span_state, &state))
+ {
+ if (state_set)
+ return clib_error_return (0, "Multiple mirror states in input");
+ state_set = 1;
+ }
else if (unformat (input, "l2"))
sf = SPAN_FEAT_L2;
else
- break;
+ return clib_error_return (0, "Invalid input");
}
int rv =
@@ -155,7 +178,12 @@ show_interfaces_span_command_fn (vlib_main_t * vm,
span_interface_t *si;
vnet_main_t *vnm = &vnet_main;
u8 header = 1;
- char *states[] = { "none", "rx", "tx", "both" };
+ static const char *states[] = {
+ [SPAN_DISABLE] = "none",
+ [SPAN_RX] = "rx",
+ [SPAN_TX] = "tx",
+ [SPAN_BOTH] = "both"
+ };
u8 *s = 0;
/* *INDENT-OFF* */