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authorOle Troan <ot@cisco.com>2017-06-13 21:15:40 +0200
committerPavel Kotucek <pkotucek@cisco.com>2017-06-27 12:01:34 +0200
commited92925f4d5535d7dd3e6de058ae90af209d5a8f (patch)
treede87748974eac8e7260e11267ef446f2599708a6 /src
parent75c3995b218c1604ccee7f9aa052191214f4067f (diff)
FLOWPROBE: Add flowstartns, flowendns and tcpcontrolbits
- fixed problem with tcp_flag - changed flowtimestamp into NTP format Change-Id: I4ef05d6c69c5c078a0c80d59c5ccb0c85b924ba6 Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src')
-rw-r--r--src/plugins/flowprobe/flowprobe.c19
-rw-r--r--src/plugins/flowprobe/flowprobe.h15
-rw-r--r--src/plugins/flowprobe/node.c68
-rw-r--r--src/vppinfra/time.h14
4 files changed, 102 insertions, 14 deletions
diff --git a/src/plugins/flowprobe/flowprobe.c b/src/plugins/flowprobe/flowprobe.c
index 8975f89cddf..884b5a2e0a5 100644
--- a/src/plugins/flowprobe/flowprobe.c
+++ b/src/plugins/flowprobe/flowprobe.c
@@ -164,7 +164,7 @@ flowprobe_template_l2_fields (ipfix_field_specifier_t * f)
static inline ipfix_field_specifier_t *
flowprobe_template_common_fields (ipfix_field_specifier_t * f)
{
-#define flowprobe_template_common_field_count() 3
+#define flowprobe_template_common_field_count() 5
/* ingressInterface, TLV type 10, u32 */
f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
ingressInterface, 4);
@@ -180,13 +180,23 @@ flowprobe_template_common_fields (ipfix_field_specifier_t * f)
packetDeltaCount, 8);
f++;
+ /* flowStartNanoseconds, TLV type 156, u64 */
+ f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
+ flowStartNanoseconds, 8);
+ f++;
+
+ /* flowEndNanoseconds, TLV type 157, u64 */
+ f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
+ flowEndNanoseconds, 8);
+ f++;
+
return f;
}
static inline ipfix_field_specifier_t *
flowprobe_template_l4_fields (ipfix_field_specifier_t * f)
{
-#define flowprobe_template_l4_field_count() 2
+#define flowprobe_template_l4_field_count() 3
/* sourceTransportPort, TLV type 7, u16 */
f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
sourceTransportPort, 2);
@@ -195,6 +205,11 @@ flowprobe_template_l4_fields (ipfix_field_specifier_t * f)
f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
destinationTransportPort, 2);
f++;
+ /* tcpControlBits, TLV type 6, u16 */
+ f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
+ tcpControlBits, 2);
+ f++;
+
return f;
}
diff --git a/src/plugins/flowprobe/flowprobe.h b/src/plugins/flowprobe/flowprobe.h
index 196c92a7f35..760e924185c 100644
--- a/src/plugins/flowprobe/flowprobe.h
+++ b/src/plugins/flowprobe/flowprobe.h
@@ -98,12 +98,27 @@ STATIC_ASSERT (sizeof (flowprobe_key_t) == FLOWPROBE_KEY_IN_U32 *
typedef struct
{
+ u32 sec;
+ u32 nsec;
+} timestamp_nsec_t;
+
+typedef struct
+{
flowprobe_key_t key;
u64 packetcount;
u64 octetcount;
+ timestamp_nsec_t flow_start;
+ timestamp_nsec_t flow_end;
f64 last_updated;
f64 last_exported;
u32 passive_timer_handle;
+ union
+ {
+ struct
+ {
+ u16 flags;
+ } tcp;
+ } prot;
} flowprobe_entry_t;
/**
diff --git a/src/plugins/flowprobe/node.c b/src/plugins/flowprobe/node.c
index 80bfa9b584f..604a0a0e15d 100644
--- a/src/plugins/flowprobe/node.c
+++ b/src/plugins/flowprobe/node.c
@@ -21,6 +21,7 @@
#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);
@@ -144,6 +145,11 @@ flowprobe_get_variant (flowprobe_variant_t which,
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)
{
@@ -164,6 +170,22 @@ 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;
}
@@ -252,6 +274,11 @@ flowprobe_l4_add (vlib_buffer_t * to_b, flowprobe_entry_t * e, u16 offset)
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;
}
@@ -328,7 +355,7 @@ flowprobe_create (u32 my_cpu_number, flowprobe_key_t * k, u32 * poolindex)
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)
@@ -348,6 +375,8 @@ add_to_flow_record_state (vlib_main_t * vm, vlib_node_runtime_t * node,
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)
{
@@ -369,7 +398,6 @@ add_to_flow_record_state (vlib_main_t * vm, vlib_node_runtime_t * node,
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];
@@ -378,27 +406,42 @@ add_to_flow_record_state (vlib_main_t * vm, vlib_node_runtime_t * node,
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)
{
@@ -436,6 +479,7 @@ add_to_flow_record_state (vlib_main_t * vm, vlib_node_runtime_t * node,
{
e = flowprobe_create (my_cpu_number, &k, &poolindex);
e->last_exported = now;
+ e->flow_start = timestamp;
}
}
else
@@ -450,7 +494,8 @@ add_to_flow_record_state (vlib_main_t * vm, vlib_node_runtime_t * node,
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);
@@ -677,10 +722,9 @@ flowprobe_node_fn (vlib_main_t * vm,
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 (&timestamp.sec, &timestamp.nsec);
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
@@ -735,7 +779,7 @@ flowprobe_node_fn (vlib_main_t * vm,
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);
@@ -745,7 +789,7 @@ flowprobe_node_fn (vlib_main_t * vm,
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);
@@ -787,7 +831,7 @@ flowprobe_node_fn (vlib_main_t * vm,
&& (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);
diff --git a/src/vppinfra/time.h b/src/vppinfra/time.h
index 3b89cf789fe..3fdc7d43ea8 100644
--- a/src/vppinfra/time.h
+++ b/src/vppinfra/time.h
@@ -242,6 +242,15 @@ unix_time_now_nsec (void)
return 1e9 * ts.tv_sec + ts.tv_nsec;
}
+always_inline void
+unix_time_now_nsec_fraction (u32 * sec, u32 * nsec)
+{
+ struct timespec ts;
+ syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts);
+ *sec = ts.tv_sec;
+ *nsec = ts.tv_nsec;
+}
+
always_inline f64
unix_usage_now (void)
{
@@ -274,6 +283,11 @@ unix_time_now_nsec (void)
return 0;
}
+always_inline void
+unix_time_now_nsec_fraction (u32 * sec, u32 * nsec)
+{
+}
+
always_inline f64
unix_usage_now (void)
{