#include <vnet/pg/pg.h>
#include <vppinfra/error.h>
#include <mactime/mactime.h>
+#include <vnet/ip/ip4.h>
typedef struct
{
vlib_node_registration_t mactime_tx_node;
#define foreach_mactime_error \
-_(DROP, "Dropped packets") \
-_(OK, "Permitted packets")
+_(OK, "Permitted packets") \
+_(STATIC_DROP, "Static drop packets") \
+_(RANGE_DROP, "Range drop packets") \
+_(QUOTA_DROP, "Data quota drop packets") \
+_(DROP_10001, "Dropped UDP DST-port 10001")
typedef enum
{
mactime_device_t *dp;
clib_bihash_kv_8_8_t kv;
clib_bihash_8_8_t *lut = &mm->lookup_table;
- u32 packets_ok = 0, packets_dropped = 0;
+ u32 packets_ok = 0;
f64 now;
u32 thread_index = vm->thread_index;
vnet_main_t *vnm = vnet_get_main ();
u32 device_index0;
u32 len0;
ethernet_header_t *en0;
+ int has_dynamic_range_allow = 0;
int i;
/* speculatively enqueue b0 to the current next frame */
en0 = vlib_buffer_get_current (b0);
kv.key = 0;
if (is_tx)
- clib_memcpy (&kv.key, en0->dst_address, 6);
+ clib_memcpy_fast (&kv.key, en0->dst_address, 6);
else
- clib_memcpy (&kv.key, en0->src_address, 6);
+ clib_memcpy_fast (&kv.key, en0->src_address, 6);
/* Lookup the src/dst mac address */
if (clib_bihash_search_8_8 (lut, &kv, &kv) < 0)
dp = pool_elt_at_index (mm->devices, device_index0);
+ /* Known device, check for an always-on traffic quota */
+ if ((dp->flags & MACTIME_DEVICE_FLAG_DYNAMIC_ALLOW)
+ && PREDICT_FALSE (dp->data_quota))
+ {
+ vlib_counter_t device_current_count;
+ vlib_get_combined_counter (&mm->allow_counters,
+ dp - mm->devices,
+ &device_current_count);
+ if (device_current_count.bytes >= dp->data_quota)
+ {
+ next0 = MACTIME_NEXT_DROP;
+ b0->error = node->errors[MACTIME_ERROR_QUOTA_DROP];
+ vlib_increment_combined_counter
+ (&mm->drop_counters, thread_index, dp - mm->devices, 1,
+ len0);
+ goto trace0;
+ }
+ }
+
/* Static drop / allow? */
if (PREDICT_FALSE
(dp->flags &
if (dp->flags & MACTIME_DEVICE_FLAG_STATIC_DROP)
{
next0 = MACTIME_NEXT_DROP;
+ b0->error = node->errors[MACTIME_ERROR_STATIC_DROP];
vlib_increment_combined_counter
(&mm->drop_counters, thread_index, dp - mm->devices, 1,
len0);
- packets_dropped++;
}
else /* note next0 set to allow */
{
- vlib_increment_combined_counter
- (&mm->allow_counters, thread_index, dp - mm->devices, 1,
- len0);
- packets_ok++;
+ /*
+ * Special-case mini-ACL for a certain species of
+ * home security DVR which likes to "call home."
+ */
+ if (PREDICT_FALSE
+ (dp->flags & MACTIME_DEVICE_FLAG_DROP_UDP_10001))
+ {
+ ip4_header_t *ip = (void *) (((u8 *) en0) + 14);
+ udp_header_t *udp = (udp_header_t *) (ip + 1);
+ if (ip->protocol != IP_PROTOCOL_UDP)
+ goto pass;
+ if (clib_net_to_host_u16 (udp->dst_port) == 10001 ||
+ clib_net_to_host_u16 (udp->dst_port) == 9603)
+ {
+ next0 = MACTIME_NEXT_DROP;
+ b0->error = node->errors[MACTIME_ERROR_DROP_10001];
+ }
+ else
+ goto pass;
+ }
+ else
+ {
+ pass:
+ vlib_increment_combined_counter
+ (&mm->allow_counters, thread_index, dp - mm->devices,
+ 1, len0);
+ packets_ok++;
+ }
}
goto trace0;
}
start0 = r->start + mm->sunday_midnight;
end0 = r->end + mm->sunday_midnight;
+ if (dp->flags & MACTIME_DEVICE_FLAG_DYNAMIC_ALLOW_QUOTA)
+ has_dynamic_range_allow = 1;
+
/* Packet within time range */
if (now >= start0 && now <= end0)
{
vlib_increment_combined_counter
(&mm->drop_counters, thread_index,
dp - mm->devices, 1, len0);
- packets_dropped++;
next0 = MACTIME_NEXT_DROP;
+ b0->error = node->errors[MACTIME_ERROR_RANGE_DROP];
+ goto trace0;
}
- else /* it's an allow range, allow it */
+ /* Quota-check allow range? */
+ else if (has_dynamic_range_allow)
{
+ if (dp->data_used_in_range + len0 >= dp->data_quota)
+ {
+ next0 = MACTIME_NEXT_DROP;
+ b0->error = node->errors[MACTIME_ERROR_QUOTA_DROP];
+ vlib_increment_combined_counter
+ (&mm->drop_counters, thread_index,
+ dp - mm->devices, 1, len0);
+ goto trace0;
+ }
+ else
+ {
+ dp->data_used_in_range += len0;
+ goto allow0;
+ }
+ }
+ else
+ { /* it's an allow range, allow it */
+ allow0:
vlib_increment_combined_counter
(&mm->allow_counters, thread_index,
dp - mm->devices, 1, len0);
packets_ok++;
+ goto trace0;
}
- goto trace0;
}
}
/*
if (dp->flags & MACTIME_DEVICE_FLAG_DYNAMIC_ALLOW)
{
next0 = MACTIME_NEXT_DROP;
+ b0->error = node->errors[MACTIME_ERROR_STATIC_DROP];
vlib_increment_combined_counter
(&mm->drop_counters, thread_index, dp - mm->devices, 1, len0);
- packets_dropped++;
}
- else
+ else /* DYNAMIC_DROP, DYNAMIC_RANGE_ALLOW_QUOTA */
{
vlib_increment_combined_counter
(&mm->allow_counters, thread_index, dp - mm->devices, 1,
len0);
+ /* Clear the data quota accumulater */
+ dp->data_used_in_range = 0;
packets_ok++;
}
&& (b0->flags & VLIB_BUFFER_IS_TRACED)))
{
mactime_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
- clib_memcpy (t->src_mac, en0->src_address, sizeof (t->src_mac));
+ clib_memcpy_fast (t->src_mac, en0->src_address,
+ sizeof (t->src_mac));
t->next_index = next0;
t->device_index = device_index0;
if (dp)
{
- clib_memcpy (t->device_name, dp->device_name,
- ARRAY_LEN (t->device_name));
+ clib_memcpy_fast (t->device_name, dp->device_name,
+ ARRAY_LEN (t->device_name));
t->device_name[ARRAY_LEN (t->device_name) - 1] = 0;
}
}
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- vlib_node_increment_counter (vm, node->node_index,
- MACTIME_ERROR_DROP, packets_dropped);
vlib_node_increment_counter (vm, node->node_index,
MACTIME_ERROR_OK, packets_ok);
return frame->n_vectors;
Code Review / vpp.git / blobdiff