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Diffstat (limited to 'src/plugins/ioam/analyse/ip6/ip6_ioam_analyse.h')
-rw-r--r--src/plugins/ioam/analyse/ip6/ip6_ioam_analyse.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/plugins/ioam/analyse/ip6/ip6_ioam_analyse.h b/src/plugins/ioam/analyse/ip6/ip6_ioam_analyse.h
index f6abdce3c9a..5a2a2d70028 100644
--- a/src/plugins/ioam/analyse/ip6/ip6_ioam_analyse.h
+++ b/src/plugins/ioam/analyse/ip6/ip6_ioam_analyse.h
@@ -18,6 +18,7 @@
#include <ioam/analyse/ioam_analyse.h>
#include <vnet/ip/ip6_hop_by_hop.h>
+#include <ioam/encap/ip6_ioam_trace.h>
/** @brief IP6-iOAM analyser main structure.
@note cache aligned.
@@ -57,6 +58,64 @@ ioam_analyse_get_data_from_flow_id (u32 flow_id)
return (ioam_analyser_main.aggregated_data + flow_id);
}
+always_inline void *
+ip6_ioam_find_hbh_option (ip6_hop_by_hop_header_t * hbh0, u8 option)
+{
+ ip6_hop_by_hop_option_t *opt0, *limit0;
+ u8 type0;
+
+ opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1);
+ limit0 =
+ (ip6_hop_by_hop_option_t *) ((u8 *) hbh0 + ((hbh0->length + 1) << 3));
+
+ while (opt0 < limit0)
+ {
+ type0 = opt0->type;
+ if (type0 == option)
+ return ((void *) opt0);
+
+ if (0 == type0)
+ {
+ opt0 = (ip6_hop_by_hop_option_t *) ((u8 *) opt0) + 1;
+ continue;
+ }
+ opt0 = (ip6_hop_by_hop_option_t *)
+ (((u8 *) opt0) + opt0->length + sizeof (ip6_hop_by_hop_option_t));
+ }
+
+ return NULL;
+}
+
+always_inline int
+ip6_ioam_analyse_compare_path_delay (ip6_hop_by_hop_header_t * hbh0,
+ ip6_hop_by_hop_header_t * hbh1,
+ bool oneway)
+{
+ ioam_trace_option_t *trace0 = NULL, *trace1 = NULL;
+ f64 delay0, delay1;
+
+ trace0 =
+ ip6_ioam_find_hbh_option (hbh0, HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST);
+ trace1 =
+ ip6_ioam_find_hbh_option (hbh1, HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST);
+
+ if (PREDICT_FALSE ((trace0 == NULL) && (trace1 == NULL)))
+ return 0;
+
+ if (PREDICT_FALSE (trace1 == NULL))
+ return 1;
+
+ if (PREDICT_FALSE (trace0 == NULL))
+ return -1;
+
+ delay0 = ip6_ioam_analyse_calc_delay (&trace0->trace_hdr,
+ trace0->hdr.length - 2, oneway);
+ delay1 = ip6_ioam_analyse_calc_delay (&trace1->trace_hdr,
+ trace1->hdr.length - 2, oneway);
+
+ return (delay0 - delay1);
+}
+
#endif /* PLUGINS_IOAM_PLUGIN_IOAM_ANALYSE_IP6_IOAM_ANALYSE_NODE_H_ */
/*