#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vnet/pg/pg.h>
+#include <vppinfra/crc32.h>
#include <vppinfra/error.h>
#include <flowprobe/flowprobe.h>
#include <vnet/ip/ip6_packet.h>
+#include <vlibmemory/api.h>
static void flowprobe_export_entry (vlib_main_t * vm, flowprobe_entry_t * e);
return which;
}
+/*
+ * NTP rfc868 : 2 208 988 800 corresponds to 00:00 1 Jan 1970 GMT
+ */
+#define NTP_TIMESTAMP 2208988800L
+
static inline u32
flowprobe_common_add (vlib_buffer_t * to_b, flowprobe_entry_t * e, u16 offset)
{
clib_memcpy (to_b->data + offset, &packetdelta, sizeof (u64));
offset += sizeof (u64);
+ /* flowStartNanoseconds */
+ u32 t = clib_host_to_net_u32 (e->flow_start.sec + NTP_TIMESTAMP);
+ clib_memcpy (to_b->data + offset, &t, sizeof (u32));
+ offset += sizeof (u32);
+ t = clib_host_to_net_u32 (e->flow_start.nsec);
+ clib_memcpy (to_b->data + offset, &t, sizeof (u32));
+ offset += sizeof (u32);
+
+ /* flowEndNanoseconds */
+ t = clib_host_to_net_u32 (e->flow_end.sec + NTP_TIMESTAMP);
+ clib_memcpy (to_b->data + offset, &t, sizeof (u32));
+ offset += sizeof (u32);
+ t = clib_host_to_net_u32 (e->flow_end.nsec);
+ clib_memcpy (to_b->data + offset, &t, sizeof (u32));
+ offset += sizeof (u32);
+
return offset - start;
}
clib_memcpy (to_b->data + offset, &e->key.dst_port, 2);
offset += 2;
+ /* tcp control bits */
+ u16 control_bits = htons (e->prot.tcp.flags);
+ clib_memcpy (to_b->data + offset, &control_bits, 2);
+ offset += 2;
+
return offset - start;
}
flowprobe_hash (flowprobe_key_t * k)
{
flowprobe_main_t *fm = &flowprobe_main;
- int i;
u32 h = 0;
- for (i = 0; i < sizeof (k->as_u32) / sizeof (u32); i++)
- h = crc_u32 (k->as_u32[i], h);
+
+#ifdef clib_crc32c_uses_intrinsics
+ h = clib_crc32c ((u8 *) k->as_u32, FLOWPROBE_KEY_IN_U32);
+#else
+ u64 tmp =
+ k->as_u32[0] ^ k->as_u32[1] ^ k->as_u32[2] ^ k->as_u32[3] ^ k->as_u32[4];
+ h = clib_xxhash (tmp);
+#endif
+
return h >> (32 - fm->ht_log2len);
}
static inline void
add_to_flow_record_state (vlib_main_t * vm, vlib_node_runtime_t * node,
flowprobe_main_t * fm, vlib_buffer_t * b,
- u64 timestamp, u16 length,
+ timestamp_nsec_t timestamp, u16 length,
flowprobe_variant_t which, flowprobe_trace_t * t)
{
if (fm->disabled)
ip4_header_t *ip4 = 0;
ip6_header_t *ip6 = 0;
udp_header_t *udp = 0;
+ tcp_header_t *tcp = 0;
+ u8 tcp_flags = 0;
if (flags & FLOW_RECORD_L3 || flags & FLOW_RECORD_L4)
{
if (collect_ip6 && ethertype == ETHERNET_TYPE_IP6)
{
ip6 = (ip6_header_t *) (eth + 1);
- udp = (udp_header_t *) (ip6 + 1);
if (flags & FLOW_RECORD_L3)
{
k.src_address.as_u64[0] = ip6->src_address.as_u64[0];
k.dst_address.as_u64[1] = ip6->dst_address.as_u64[1];
}
k.protocol = ip6->protocol;
+ if (k.protocol == IP_PROTOCOL_UDP)
+ udp = (udp_header_t *) (ip6 + 1);
+ else if (k.protocol == IP_PROTOCOL_TCP)
+ tcp = (tcp_header_t *) (ip6 + 1);
+
octets = clib_net_to_host_u16 (ip6->payload_length)
+ sizeof (ip6_header_t);
}
if (collect_ip4 && ethertype == ETHERNET_TYPE_IP4)
{
ip4 = (ip4_header_t *) (eth + 1);
- udp = (udp_header_t *) (ip4 + 1);
if (flags & FLOW_RECORD_L3)
{
k.src_address.ip4.as_u32 = ip4->src_address.as_u32;
k.dst_address.ip4.as_u32 = ip4->dst_address.as_u32;
}
k.protocol = ip4->protocol;
+ if ((flags & FLOW_RECORD_L4) && k.protocol == IP_PROTOCOL_UDP)
+ udp = (udp_header_t *) (ip4 + 1);
+ else if ((flags & FLOW_RECORD_L4) && k.protocol == IP_PROTOCOL_TCP)
+ tcp = (tcp_header_t *) (ip4 + 1);
+
octets = clib_net_to_host_u16 (ip4->length);
}
- if ((flags & FLOW_RECORD_L4) && udp &&
- (k.protocol == IP_PROTOCOL_TCP || k.protocol == IP_PROTOCOL_UDP))
+
+ if (udp)
{
k.src_port = udp->src_port;
k.dst_port = udp->dst_port;
}
+ else if (tcp)
+ {
+ k.src_port = tcp->src_port;
+ k.dst_port = tcp->dst_port;
+ tcp_flags = tcp->flags;
+ }
if (t)
{
{
e = flowprobe_create (my_cpu_number, &k, &poolindex);
e->last_exported = now;
+ e->flow_start = timestamp;
}
}
else
e->packetcount++;
e->octetcount += octets;
e->last_updated = now;
-
+ e->flow_end = timestamp;
+ e->prot.tcp.flags |= tcp_flags;
if (fm->active_timer == 0
|| (now > e->last_exported + fm->active_timer))
flowprobe_export_entry (vm, e);
u32 n_left_from, *from, *to_next;
flowprobe_next_t next_index;
flowprobe_main_t *fm = &flowprobe_main;
- u64 now;
+ timestamp_nsec_t timestamp;
- now = (u64) ((vlib_time_now (vm) - fm->vlib_time_0) * 1e9);
- now += fm->nanosecond_time_0;
+ unix_time_now_nsec_fraction (×tamp.sec, ×tamp.nsec);
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
u16 ethertype0 = clib_net_to_host_u16 (eh0->type);
if (PREDICT_TRUE ((b0->flags & VLIB_BUFFER_FLOW_REPORT) == 0))
- add_to_flow_record_state (vm, node, fm, b0, now, len0,
+ add_to_flow_record_state (vm, node, fm, b0, timestamp, len0,
flowprobe_get_variant
(which, fm->context[which].flags,
ethertype0), 0);
u16 ethertype1 = clib_net_to_host_u16 (eh1->type);
if (PREDICT_TRUE ((b1->flags & VLIB_BUFFER_FLOW_REPORT) == 0))
- add_to_flow_record_state (vm, node, fm, b1, now, len1,
+ add_to_flow_record_state (vm, node, fm, b1, timestamp, len1,
flowprobe_get_variant
(which, fm->context[which].flags,
ethertype1), 0);
&& (b0->flags & VLIB_BUFFER_IS_TRACED)))
t = vlib_add_trace (vm, node, b0, sizeof (*t));
- add_to_flow_record_state (vm, node, fm, b0, now, len0,
+ add_to_flow_record_state (vm, node, fm, b0, timestamp, len0,
flowprobe_get_variant
(which, fm->context[which].flags,
ethertype0), t);
Code Review / vpp.git / blobdiff