]> The Tcpdump Group git mirrors - tcpdump/blobdiff - print-sflow.c
Add more nd_print_trunc() calls
[tcpdump] / print-sflow.c
index 2ffb0522c2af165b800c90bad31f4095bf0b8392..78aaafb6138770d07f700a7759201afd1d7e5e57 100644 (file)
 /* specification: http://www.sflow.org/developers/specifications.php */
 
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
 #endif
 
-#include <netdissect-stdinc.h>
+#include "netdissect-stdinc.h"
 
 #include "netdissect.h"
 #include "extract.h"
@@ -84,7 +84,8 @@ static const struct tok sflow_format_values[] = {
 
 struct sflow_flow_sample_t {
     nd_uint32_t seqnum;
-    nd_uint32_t typesource;
+    nd_uint8_t  type;
+    nd_uint24_t index;
     nd_uint32_t rate;
     nd_uint32_t pool;
     nd_uint32_t drops;
@@ -189,7 +190,8 @@ struct sflow_flow_record_t {
 
 struct sflow_counter_sample_t {
     nd_uint32_t    seqnum;
-    nd_uint32_t    typesource;
+    nd_uint8_t     type;
+    nd_uint24_t    index;
     nd_uint32_t    records;
 };
 
@@ -306,38 +308,38 @@ print_sflow_counter_generic(netdissect_options *ndo,
        return 1;
 
     sflow_gen_counter = (const struct sflow_generic_counter_t *)pointer;
-    ND_TCHECK(*sflow_gen_counter);
-    ND_PRINT((ndo, "\n\t      ifindex %u, iftype %u, ifspeed %" PRIu64 ", ifdirection %u (%s)",
+    ND_TCHECK_SIZE(sflow_gen_counter);
+    ND_PRINT("\n\t      ifindex %u, iftype %u, ifspeed %" PRIu64 ", ifdirection %u (%s)",
           EXTRACT_BE_U_4(sflow_gen_counter->ifindex),
           EXTRACT_BE_U_4(sflow_gen_counter->iftype),
           EXTRACT_BE_U_8(sflow_gen_counter->ifspeed),
           EXTRACT_BE_U_4(sflow_gen_counter->ifdirection),
           tok2str(sflow_iface_direction_values, "Unknown",
-          EXTRACT_BE_U_4(sflow_gen_counter->ifdirection))));
-    ND_PRINT((ndo, "\n\t      ifstatus %u, adminstatus: %s, operstatus: %s",
+          EXTRACT_BE_U_4(sflow_gen_counter->ifdirection)));
+    ND_PRINT("\n\t      ifstatus %u, adminstatus: %s, operstatus: %s",
           EXTRACT_BE_U_4(sflow_gen_counter->ifstatus),
           EXTRACT_BE_U_4(sflow_gen_counter->ifstatus)&1 ? "up" : "down",
-          (EXTRACT_BE_U_4(sflow_gen_counter->ifstatus)>>1)&1 ? "up" : "down"));
-    ND_PRINT((ndo, "\n\t      In octets %" PRIu64
+          (EXTRACT_BE_U_4(sflow_gen_counter->ifstatus)>>1)&1 ? "up" : "down");
+    ND_PRINT("\n\t      In octets %" PRIu64
           ", unicast pkts %u, multicast pkts %u, broadcast pkts %u, discards %u",
           EXTRACT_BE_U_8(sflow_gen_counter->ifinoctets),
           EXTRACT_BE_U_4(sflow_gen_counter->ifinunicastpkts),
           EXTRACT_BE_U_4(sflow_gen_counter->ifinmulticastpkts),
           EXTRACT_BE_U_4(sflow_gen_counter->ifinbroadcastpkts),
-          EXTRACT_BE_U_4(sflow_gen_counter->ifindiscards)));
-    ND_PRINT((ndo, "\n\t      In errors %u, unknown protos %u",
+          EXTRACT_BE_U_4(sflow_gen_counter->ifindiscards));
+    ND_PRINT("\n\t      In errors %u, unknown protos %u",
           EXTRACT_BE_U_4(sflow_gen_counter->ifinerrors),
-          EXTRACT_BE_U_4(sflow_gen_counter->ifinunkownprotos)));
-    ND_PRINT((ndo, "\n\t      Out octets %" PRIu64
+          EXTRACT_BE_U_4(sflow_gen_counter->ifinunkownprotos));
+    ND_PRINT("\n\t      Out octets %" PRIu64
           ", unicast pkts %u, multicast pkts %u, broadcast pkts %u, discards %u",
           EXTRACT_BE_U_8(sflow_gen_counter->ifoutoctets),
           EXTRACT_BE_U_4(sflow_gen_counter->ifoutunicastpkts),
           EXTRACT_BE_U_4(sflow_gen_counter->ifoutmulticastpkts),
           EXTRACT_BE_U_4(sflow_gen_counter->ifoutbroadcastpkts),
-          EXTRACT_BE_U_4(sflow_gen_counter->ifoutdiscards)));
-    ND_PRINT((ndo, "\n\t      Out errors %u, promisc mode %u",
+          EXTRACT_BE_U_4(sflow_gen_counter->ifoutdiscards));
+    ND_PRINT("\n\t      Out errors %u, promisc mode %u",
           EXTRACT_BE_U_4(sflow_gen_counter->ifouterrors),
-          EXTRACT_BE_U_4(sflow_gen_counter->ifpromiscmode)));
+          EXTRACT_BE_U_4(sflow_gen_counter->ifpromiscmode));
 
     return 0;
 
@@ -355,23 +357,23 @@ print_sflow_counter_ethernet(netdissect_options *ndo,
        return 1;
 
     sflow_eth_counter = (const struct sflow_ethernet_counter_t *)pointer;
-    ND_TCHECK(*sflow_eth_counter);
-    ND_PRINT((ndo, "\n\t      align errors %u, fcs errors %u, single collision %u, multiple collision %u, test error %u",
+    ND_TCHECK_SIZE(sflow_eth_counter);
+    ND_PRINT("\n\t      align errors %u, fcs errors %u, single collision %u, multiple collision %u, test error %u",
           EXTRACT_BE_U_4(sflow_eth_counter->alignerrors),
           EXTRACT_BE_U_4(sflow_eth_counter->fcserrors),
           EXTRACT_BE_U_4(sflow_eth_counter->single_collision_frames),
           EXTRACT_BE_U_4(sflow_eth_counter->multiple_collision_frames),
-          EXTRACT_BE_U_4(sflow_eth_counter->test_errors)));
-    ND_PRINT((ndo, "\n\t      deferred %u, late collision %u, excessive collision %u, mac trans error %u",
+          EXTRACT_BE_U_4(sflow_eth_counter->test_errors));
+    ND_PRINT("\n\t      deferred %u, late collision %u, excessive collision %u, mac trans error %u",
           EXTRACT_BE_U_4(sflow_eth_counter->deferred_transmissions),
           EXTRACT_BE_U_4(sflow_eth_counter->late_collisions),
           EXTRACT_BE_U_4(sflow_eth_counter->excessive_collisions),
-          EXTRACT_BE_U_4(sflow_eth_counter->mac_transmit_errors)));
-    ND_PRINT((ndo, "\n\t      carrier error %u, frames too long %u, mac receive errors %u, symbol errors %u",
+          EXTRACT_BE_U_4(sflow_eth_counter->mac_transmit_errors));
+    ND_PRINT("\n\t      carrier error %u, frames too long %u, mac receive errors %u, symbol errors %u",
           EXTRACT_BE_U_4(sflow_eth_counter->carrier_sense_errors),
           EXTRACT_BE_U_4(sflow_eth_counter->frame_too_longs),
           EXTRACT_BE_U_4(sflow_eth_counter->mac_receive_errors),
-          EXTRACT_BE_U_4(sflow_eth_counter->symbol_errors)));
+          EXTRACT_BE_U_4(sflow_eth_counter->symbol_errors));
 
     return 0;
 
@@ -396,29 +398,29 @@ print_sflow_counter_basevg(netdissect_options *ndo,
        return 1;
 
     sflow_100basevg_counter = (const struct sflow_100basevg_counter_t *)pointer;
-    ND_TCHECK(*sflow_100basevg_counter);
-    ND_PRINT((ndo, "\n\t      in high prio frames %u, in high prio octets %" PRIu64,
+    ND_TCHECK_SIZE(sflow_100basevg_counter);
+    ND_PRINT("\n\t      in high prio frames %u, in high prio octets %" PRIu64,
           EXTRACT_BE_U_4(sflow_100basevg_counter->in_highpriority_frames),
-          EXTRACT_BE_U_8(sflow_100basevg_counter->in_highpriority_octets)));
-    ND_PRINT((ndo, "\n\t      in norm prio frames %u, in norm prio octets %" PRIu64,
+          EXTRACT_BE_U_8(sflow_100basevg_counter->in_highpriority_octets));
+    ND_PRINT("\n\t      in norm prio frames %u, in norm prio octets %" PRIu64,
           EXTRACT_BE_U_4(sflow_100basevg_counter->in_normpriority_frames),
-          EXTRACT_BE_U_8(sflow_100basevg_counter->in_normpriority_octets)));
-    ND_PRINT((ndo, "\n\t      in ipm errors %u, oversized %u, in data errors %u, null addressed frames %u",
+          EXTRACT_BE_U_8(sflow_100basevg_counter->in_normpriority_octets));
+    ND_PRINT("\n\t      in ipm errors %u, oversized %u, in data errors %u, null addressed frames %u",
           EXTRACT_BE_U_4(sflow_100basevg_counter->in_ipmerrors),
           EXTRACT_BE_U_4(sflow_100basevg_counter->in_oversized),
           EXTRACT_BE_U_4(sflow_100basevg_counter->in_data_errors),
-          EXTRACT_BE_U_4(sflow_100basevg_counter->in_null_addressed_frames)));
-    ND_PRINT((ndo, "\n\t      out high prio frames %u, out high prio octets %" PRIu64
+          EXTRACT_BE_U_4(sflow_100basevg_counter->in_null_addressed_frames));
+    ND_PRINT("\n\t      out high prio frames %u, out high prio octets %" PRIu64
           ", trans into frames %u",
           EXTRACT_BE_U_4(sflow_100basevg_counter->out_highpriority_frames),
           EXTRACT_BE_U_8(sflow_100basevg_counter->out_highpriority_octets),
-          EXTRACT_BE_U_4(sflow_100basevg_counter->transitioninto_frames)));
-    ND_PRINT((ndo, "\n\t      in hc high prio octets %" PRIu64
+          EXTRACT_BE_U_4(sflow_100basevg_counter->transitioninto_frames));
+    ND_PRINT("\n\t      in hc high prio octets %" PRIu64
           ", in hc norm prio octets %" PRIu64
           ", out hc high prio octets %" PRIu64,
           EXTRACT_BE_U_8(sflow_100basevg_counter->hc_in_highpriority_octets),
           EXTRACT_BE_U_8(sflow_100basevg_counter->hc_in_normpriority_octets),
-          EXTRACT_BE_U_8(sflow_100basevg_counter->hc_out_highpriority_octets)));
+          EXTRACT_BE_U_8(sflow_100basevg_counter->hc_out_highpriority_octets));
 
     return 0;
 
@@ -436,15 +438,15 @@ print_sflow_counter_vlan(netdissect_options *ndo,
        return 1;
 
     sflow_vlan_counter = (const struct sflow_vlan_counter_t *)pointer;
-    ND_TCHECK(*sflow_vlan_counter);
-    ND_PRINT((ndo, "\n\t      vlan_id %u, octets %" PRIu64
+    ND_TCHECK_SIZE(sflow_vlan_counter);
+    ND_PRINT("\n\t      vlan_id %u, octets %" PRIu64
           ", unicast_pkt %u, multicast_pkt %u, broadcast_pkt %u, discards %u",
           EXTRACT_BE_U_4(sflow_vlan_counter->vlan_id),
           EXTRACT_BE_U_8(sflow_vlan_counter->octets),
           EXTRACT_BE_U_4(sflow_vlan_counter->unicast_pkt),
           EXTRACT_BE_U_4(sflow_vlan_counter->multicast_pkt),
           EXTRACT_BE_U_4(sflow_vlan_counter->broadcast_pkt),
-          EXTRACT_BE_U_4(sflow_vlan_counter->discards)));
+          EXTRACT_BE_U_4(sflow_vlan_counter->discards));
 
     return 0;
 
@@ -470,14 +472,14 @@ print_sflow_counter_processor(netdissect_options *ndo,
        return 1;
 
     sflow_processor_counter = (const struct sflow_processor_counter_t *)pointer;
-    ND_TCHECK(*sflow_processor_counter);
-    ND_PRINT((ndo, "\n\t      5sec %u, 1min %u, 5min %u, total_mem %" PRIu64
+    ND_TCHECK_SIZE(sflow_processor_counter);
+    ND_PRINT("\n\t      5sec %u, 1min %u, 5min %u, total_mem %" PRIu64
           ", total_mem %" PRIu64,
           EXTRACT_BE_U_4(sflow_processor_counter->five_sec_util),
           EXTRACT_BE_U_4(sflow_processor_counter->one_min_util),
           EXTRACT_BE_U_4(sflow_processor_counter->five_min_util),
           EXTRACT_BE_U_8(sflow_processor_counter->total_memory),
-          EXTRACT_BE_U_8(sflow_processor_counter->free_memory)));
+          EXTRACT_BE_U_8(sflow_processor_counter->free_memory));
 
     return 0;
 
@@ -506,17 +508,17 @@ sflow_print_counter_records(netdissect_options *ndo,
        if (tlen < sizeof(struct sflow_counter_record_t))
            return 1;
        sflow_counter_record = (const struct sflow_counter_record_t *)tptr;
-       ND_TCHECK(*sflow_counter_record);
+       ND_TCHECK_SIZE(sflow_counter_record);
 
        enterprise = EXTRACT_BE_U_4(sflow_counter_record->format);
        counter_type = enterprise & 0x0FFF;
        enterprise = enterprise >> 20;
        counter_len  = EXTRACT_BE_U_4(sflow_counter_record->length);
-       ND_PRINT((ndo, "\n\t    enterprise %u, %s (%u) length %u",
+       ND_PRINT("\n\t    enterprise %u, %s (%u) length %u",
               enterprise,
               (enterprise == 0) ? tok2str(sflow_counter_type_values,"Unknown",counter_type) : "Unknown",
               counter_type,
-              counter_len));
+              counter_len);
 
        tptr += sizeof(struct sflow_counter_record_t);
        tlen -= sizeof(struct sflow_counter_record_t);
@@ -573,26 +575,20 @@ sflow_print_counter_sample(netdissect_options *ndo,
 {
     const struct sflow_counter_sample_t *sflow_counter_sample;
     u_int           nrecords;
-    u_int           typesource;
-    u_int           type;
-    u_int           index;
 
     if (len < sizeof(struct sflow_counter_sample_t))
        return 1;
 
     sflow_counter_sample = (const struct sflow_counter_sample_t *)pointer;
-    ND_TCHECK(*sflow_counter_sample);
+    ND_TCHECK_SIZE(sflow_counter_sample);
 
-    typesource = EXTRACT_BE_U_4(sflow_counter_sample->typesource);
     nrecords   = EXTRACT_BE_U_4(sflow_counter_sample->records);
-    type = typesource >> 24;
-    index = typesource & 0x0FFF;
 
-    ND_PRINT((ndo, " seqnum %u, type %u, idx %u, records %u",
+    ND_PRINT(" seqnum %u, type %u, idx %u, records %u",
           EXTRACT_BE_U_4(sflow_counter_sample->seqnum),
-          type,
-          index,
-          nrecords));
+          EXTRACT_U_1(sflow_counter_sample->type),
+          EXTRACT_BE_U_3(sflow_counter_sample->index),
+          nrecords);
 
     return sflow_print_counter_records(ndo, pointer + sizeof(struct sflow_counter_sample_t),
                                       len - sizeof(struct sflow_counter_sample_t),
@@ -614,15 +610,15 @@ sflow_print_expanded_counter_sample(netdissect_options *ndo,
        return 1;
 
     sflow_expanded_counter_sample = (const struct sflow_expanded_counter_sample_t *)pointer;
-    ND_TCHECK(*sflow_expanded_counter_sample);
+    ND_TCHECK_SIZE(sflow_expanded_counter_sample);
 
     nrecords = EXTRACT_BE_U_4(sflow_expanded_counter_sample->records);
 
-    ND_PRINT((ndo, " seqnum %u, type %u, idx %u, records %u",
+    ND_PRINT(" seqnum %u, type %u, idx %u, records %u",
           EXTRACT_BE_U_4(sflow_expanded_counter_sample->seqnum),
           EXTRACT_BE_U_4(sflow_expanded_counter_sample->type),
           EXTRACT_BE_U_4(sflow_expanded_counter_sample->index),
-          nrecords));
+          nrecords);
 
     return sflow_print_counter_records(ndo, pointer + sizeof(struct sflow_expanded_counter_sample_t),
                                       len - sizeof(struct sflow_expanded_counter_sample_t),
@@ -642,13 +638,13 @@ print_sflow_raw_packet(netdissect_options *ndo,
        return 1;
 
     sflow_flow_raw = (const struct sflow_expanded_flow_raw_t *)pointer;
-    ND_TCHECK(*sflow_flow_raw);
-    ND_PRINT((ndo, "\n\t      protocol %s (%u), length %u, stripped bytes %u, header_size %u",
+    ND_TCHECK_SIZE(sflow_flow_raw);
+    ND_PRINT("\n\t      protocol %s (%u), length %u, stripped bytes %u, header_size %u",
           tok2str(sflow_flow_raw_protocol_values,"Unknown",EXTRACT_BE_U_4(sflow_flow_raw->protocol)),
           EXTRACT_BE_U_4(sflow_flow_raw->protocol),
           EXTRACT_BE_U_4(sflow_flow_raw->length),
           EXTRACT_BE_U_4(sflow_flow_raw->stripped_bytes),
-          EXTRACT_BE_U_4(sflow_flow_raw->header_size)));
+          EXTRACT_BE_U_4(sflow_flow_raw->header_size));
 
     /* QUESTION - should we attempt to print the raw header itself?
        assuming of course there is wnough data present to do so... */
@@ -669,11 +665,11 @@ print_sflow_ethernet_frame(netdissect_options *ndo,
        return 1;
 
     sflow_ethernet_frame = (const struct sflow_ethernet_frame_t *)pointer;
-    ND_TCHECK(*sflow_ethernet_frame);
+    ND_TCHECK_SIZE(sflow_ethernet_frame);
 
-    ND_PRINT((ndo, "\n\t      frame len %u, type %u",
+    ND_PRINT("\n\t      frame len %u, type %u",
           EXTRACT_BE_U_4(sflow_ethernet_frame->length),
-          EXTRACT_BE_U_4(sflow_ethernet_frame->type)));
+          EXTRACT_BE_U_4(sflow_ethernet_frame->type));
 
     return 0;
 
@@ -691,12 +687,12 @@ print_sflow_extended_switch_data(netdissect_options *ndo,
        return 1;
 
     sflow_extended_sw_data = (const struct sflow_extended_switch_data_t *)pointer;
-    ND_TCHECK(*sflow_extended_sw_data);
-    ND_PRINT((ndo, "\n\t      src vlan %u, src pri %u, dst vlan %u, dst pri %u",
+    ND_TCHECK_SIZE(sflow_extended_sw_data);
+    ND_PRINT("\n\t      src vlan %u, src pri %u, dst vlan %u, dst pri %u",
           EXTRACT_BE_U_4(sflow_extended_sw_data->src_vlan),
           EXTRACT_BE_U_4(sflow_extended_sw_data->src_pri),
           EXTRACT_BE_U_4(sflow_extended_sw_data->dst_vlan),
-          EXTRACT_BE_U_4(sflow_extended_sw_data->dst_pri)));
+          EXTRACT_BE_U_4(sflow_extended_sw_data->dst_pri));
 
     return 0;
 
@@ -726,7 +722,7 @@ sflow_print_flow_records(netdissect_options *ndo,
            return 1;
 
        sflow_flow_record = (const struct sflow_flow_record_t *)tptr;
-       ND_TCHECK(*sflow_flow_record);
+       ND_TCHECK_SIZE(sflow_flow_record);
 
        /* so, the funky encoding means we cannot blythly mask-off
           bits, we must also check the enterprise. */
@@ -735,11 +731,11 @@ sflow_print_flow_records(netdissect_options *ndo,
        flow_type = enterprise & 0x0FFF;
        enterprise = enterprise >> 12;
        flow_len  = EXTRACT_BE_U_4(sflow_flow_record->length);
-       ND_PRINT((ndo, "\n\t    enterprise %u %s (%u) length %u",
+       ND_PRINT("\n\t    enterprise %u %s (%u) length %u",
               enterprise,
               (enterprise == 0) ? tok2str(sflow_flow_type_values,"Unknown",flow_type) : "Unknown",
               flow_type,
-              flow_len));
+              flow_len);
 
        tptr += sizeof(struct sflow_flow_record_t);
        tlen -= sizeof(struct sflow_flow_record_t);
@@ -800,31 +796,25 @@ sflow_print_flow_sample(netdissect_options *ndo,
 {
     const struct sflow_flow_sample_t *sflow_flow_sample;
     u_int          nrecords;
-    u_int          typesource;
-    u_int          type;
-    u_int          index;
 
     if (len < sizeof(struct sflow_flow_sample_t))
        return 1;
 
     sflow_flow_sample = (const struct sflow_flow_sample_t *)pointer;
-    ND_TCHECK(*sflow_flow_sample);
+    ND_TCHECK_SIZE(sflow_flow_sample);
 
-    typesource = EXTRACT_BE_U_4(sflow_flow_sample->typesource);
     nrecords = EXTRACT_BE_U_4(sflow_flow_sample->records);
-    type = typesource >> 24;
-    index = typesource & 0x0FFF;
 
-    ND_PRINT((ndo, " seqnum %u, type %u, idx %u, rate %u, pool %u, drops %u, input %u output %u records %u",
+    ND_PRINT(" seqnum %u, type %u, idx %u, rate %u, pool %u, drops %u, input %u output %u records %u",
           EXTRACT_BE_U_4(sflow_flow_sample->seqnum),
-          type,
-          index,
+          EXTRACT_U_1(sflow_flow_sample->type),
+          EXTRACT_BE_U_3(sflow_flow_sample->index),
           EXTRACT_BE_U_4(sflow_flow_sample->rate),
           EXTRACT_BE_U_4(sflow_flow_sample->pool),
           EXTRACT_BE_U_4(sflow_flow_sample->drops),
           EXTRACT_BE_U_4(sflow_flow_sample->in_interface),
           EXTRACT_BE_U_4(sflow_flow_sample->out_interface),
-          nrecords));
+          nrecords);
 
     return sflow_print_flow_records(ndo, pointer + sizeof(struct sflow_flow_sample_t),
                                    len - sizeof(struct sflow_flow_sample_t),
@@ -845,18 +835,18 @@ sflow_print_expanded_flow_sample(netdissect_options *ndo,
        return 1;
 
     sflow_expanded_flow_sample = (const struct sflow_expanded_flow_sample_t *)pointer;
-    ND_TCHECK(*sflow_expanded_flow_sample);
+    ND_TCHECK_SIZE(sflow_expanded_flow_sample);
 
     nrecords = EXTRACT_BE_U_4(sflow_expanded_flow_sample->records);
 
-    ND_PRINT((ndo, " seqnum %u, type %u, idx %u, rate %u, pool %u, drops %u, records %u",
+    ND_PRINT(" seqnum %u, type %u, idx %u, rate %u, pool %u, drops %u, records %u",
           EXTRACT_BE_U_4(sflow_expanded_flow_sample->seqnum),
           EXTRACT_BE_U_4(sflow_expanded_flow_sample->type),
           EXTRACT_BE_U_4(sflow_expanded_flow_sample->index),
           EXTRACT_BE_U_4(sflow_expanded_flow_sample->rate),
           EXTRACT_BE_U_4(sflow_expanded_flow_sample->pool),
           EXTRACT_BE_U_4(sflow_expanded_flow_sample->drops),
-          EXTRACT_BE_U_4(sflow_expanded_flow_sample->records)));
+          EXTRACT_BE_U_4(sflow_expanded_flow_sample->records));
 
     return sflow_print_flow_records(ndo, pointer + sizeof(struct sflow_expanded_flow_sample_t),
                                    len - sizeof(struct sflow_expanded_flow_sample_t),
@@ -878,33 +868,34 @@ sflow_print(netdissect_options *ndo,
     uint32_t sflow_sample_type, sflow_sample_len;
     uint32_t nsamples;
 
+    ndo->ndo_protocol = "sflow";
     tptr = pptr;
     tlen = len;
     sflow_datagram = (const struct sflow_datagram_t *)pptr;
-    ND_TCHECK(*sflow_datagram);
+    ND_TCHECK_SIZE(sflow_datagram);
 
     /*
      * Sanity checking of the header.
      */
     if (EXTRACT_BE_U_4(sflow_datagram->version) != 5) {
-        ND_PRINT((ndo, "sFlow version %u packet not supported",
-               EXTRACT_BE_U_4(sflow_datagram->version)));
+        ND_PRINT("sFlow version %u packet not supported",
+               EXTRACT_BE_U_4(sflow_datagram->version));
         return;
     }
 
     if (ndo->ndo_vflag < 1) {
-        ND_PRINT((ndo, "sFlowv%u, %s agent %s, agent-id %u, length %u",
+        ND_PRINT("sFlowv%u, %s agent %s, agent-id %u, length %u",
                EXTRACT_BE_U_4(sflow_datagram->version),
                EXTRACT_BE_U_4(sflow_datagram->ip_version) == 1 ? "IPv4" : "IPv6",
                ipaddr_string(ndo, sflow_datagram->agent),
                EXTRACT_BE_U_4(sflow_datagram->agent_id),
-               len));
+               len);
         return;
     }
 
     /* ok they seem to want to know everything - lets fully decode it */
     nsamples=EXTRACT_BE_U_4(sflow_datagram->samples);
-    ND_PRINT((ndo, "sFlowv%u, %s agent %s, agent-id %u, seqnum %u, uptime %u, samples %u, length %u",
+    ND_PRINT("sFlowv%u, %s agent %s, agent-id %u, seqnum %u, uptime %u, samples %u, length %u",
            EXTRACT_BE_U_4(sflow_datagram->version),
            EXTRACT_BE_U_4(sflow_datagram->ip_version) == 1 ? "IPv4" : "IPv6",
            ipaddr_string(ndo, sflow_datagram->agent),
@@ -912,7 +903,7 @@ sflow_print(netdissect_options *ndo,
            EXTRACT_BE_U_4(sflow_datagram->seqnum),
            EXTRACT_BE_U_4(sflow_datagram->uptime),
            nsamples,
-           len));
+           len);
 
     /* skip Common header */
     tptr += sizeof(struct sflow_datagram_t);
@@ -920,7 +911,7 @@ sflow_print(netdissect_options *ndo,
 
     while (nsamples > 0 && tlen > 0) {
         sflow_sample = (const struct sflow_sample_header *)tptr;
-        ND_TCHECK(*sflow_sample);
+        ND_TCHECK_SIZE(sflow_sample);
 
         sflow_sample_type = (EXTRACT_BE_U_4(sflow_sample->format)&0x0FFF);
         sflow_sample_len = EXTRACT_BE_U_4(sflow_sample->len);
@@ -931,10 +922,10 @@ sflow_print(netdissect_options *ndo,
         tptr += sizeof(struct sflow_sample_header);
         tlen -= sizeof(struct sflow_sample_header);
 
-        ND_PRINT((ndo, "\n\t%s (%u), length %u,",
+        ND_PRINT("\n\t%s (%u), length %u,",
                tok2str(sflow_format_values, "Unknown", sflow_sample_type),
                sflow_sample_type,
-               sflow_sample_len));
+               sflow_sample_len);
 
         /* basic sanity check */
         if (sflow_sample_type == 0 || sflow_sample_len ==0) {
@@ -980,12 +971,5 @@ sflow_print(netdissect_options *ndo,
     return;
 
  trunc:
-    ND_PRINT((ndo, "[|SFLOW]"));
+    nd_print_trunc(ndo);
 }
-
-/*
- * Local Variables:
- * c-style: whitesmith
- * c-basic-offset: 4
- * End:
- */