/* \summary: Babel Routing Protocol printer */
#ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
#endif
-#include <netdissect-stdinc.h>
+#include "netdissect-stdinc.h"
#include <stdio.h>
#include <string.h>
#include "addrtoname.h"
#include "extract.h"
-static const char tstr[] = "[|babel]";
static void babel_print_v2(netdissect_options *, const u_char *cp, u_int length);
babel_print(netdissect_options *ndo,
const u_char *cp, u_int length)
{
- ND_PRINT((ndo, "babel"));
+ ndo->ndo_protocol = "babel";
+ ND_PRINT("babel");
ND_TCHECK_4(cp);
if(EXTRACT_U_1(cp) != 42) {
- ND_PRINT((ndo, " invalid header"));
+ ND_PRINT(" invalid header");
return;
} else {
- ND_PRINT((ndo, " %d", EXTRACT_U_1(cp + 1)));
+ ND_PRINT(" %u", EXTRACT_U_1(cp + 1));
}
switch(EXTRACT_U_1(cp + 1)) {
babel_print_v2(ndo, cp, length);
break;
default:
- ND_PRINT((ndo, " unknown version"));
+ ND_PRINT(" unknown version");
break;
}
return;
trunc:
- ND_PRINT((ndo, " %s", tstr));
+ nd_print_trunc(ndo);
return;
}
#define MESSAGE_ROUTER_ID 6
#define MESSAGE_NH 7
#define MESSAGE_UPDATE 8
-#define MESSAGE_REQUEST 9
-#define MESSAGE_MH_REQUEST 10
+#define MESSAGE_ROUTE_REQUEST 9
+#define MESSAGE_SEQNO_REQUEST 10
#define MESSAGE_TSPC 11
#define MESSAGE_HMAC 12
-#define MESSAGE_UPDATE_SRC_SPECIFIC 13
-#define MESSAGE_REQUEST_SRC_SPECIFIC 14
-#define MESSAGE_MH_REQUEST_SRC_SPECIFIC 15
+#define MESSAGE_UPDATE_SRC_SPECIFIC 13 /* last appearance in draft-boutier-babel-source-specific-01 */
+#define MESSAGE_REQUEST_SRC_SPECIFIC 14 /* idem */
+#define MESSAGE_MH_REQUEST_SRC_SPECIFIC 15 /* idem */
/* sub-TLVs */
#define MESSAGE_SUB_PAD1 0
format_id(const u_char *id)
{
static char buf[25];
- snprintf(buf, 25, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
+ nd_snprintf(buf, 25, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
EXTRACT_U_1(id), EXTRACT_U_1(id + 1), EXTRACT_U_1(id + 2),
EXTRACT_U_1(id + 3), EXTRACT_U_1(id + 4), EXTRACT_U_1(id + 5),
EXTRACT_U_1(id + 6), EXTRACT_U_1(id + 7));
{
static char buf[50];
if(plen >= 96 && memcmp(prefix, v4prefix, 12) == 0)
- snprintf(buf, 50, "%s/%u", ipaddr_string(ndo, prefix + 12), plen - 96);
+ nd_snprintf(buf, 50, "%s/%u", ipaddr_string(ndo, prefix + 12), plen - 96);
else
- snprintf(buf, 50, "%s/%u", ip6addr_string(ndo, prefix), plen);
+ nd_snprintf(buf, 50, "%s/%u", ip6addr_string(ndo, prefix), plen);
buf[49] = '\0';
return buf;
}
if (i == 0)
return "0.0s (bogus)";
- snprintf(buf, sizeof(buf), "%u.%02us", i / 100, i % 100);
+ nd_snprintf(buf, sizeof(buf), "%u.%02us", i / 100, i % 100);
return buf;
}
format_timestamp(const uint32_t i)
{
static char buf[sizeof("0000.000000s")];
- snprintf(buf, sizeof(buf), "%u.%06us", i / 1000000, i % 1000000);
+ nd_snprintf(buf, sizeof(buf), "%u.%06us", i / 1000000, i % 1000000);
return buf;
}
* o Type 1 stands for PadN sub-TLV with the same encoding as the PadN TLV.
* o Type 2 stands for Diversity sub-TLV, which propagates diversity routing
* data. Its body is a variable-length sequence of 8-bit unsigned integers,
- * each representing per-hop number of interferring radio channel for the
+ * each representing per-hop number of interfering radio channel for the
* prefix. Channel 0 is invalid and must not be used in the sub-TLV, channel
* 255 interferes with any other channel.
* o Type 3 stands for Timestamp sub-TLV, used to compute RTT between
subtype = EXTRACT_U_1(cp);
cp++;
if(subtype == MESSAGE_SUB_PAD1) {
- ND_PRINT((ndo, " sub-pad1"));
+ ND_PRINT(" sub-pad1");
continue;
}
if(cp == ep)
switch(subtype) {
case MESSAGE_SUB_PADN:
- ND_PRINT((ndo, " sub-padn"));
+ ND_PRINT(" sub-padn");
cp += sublen;
break;
case MESSAGE_SUB_DIVERSITY:
- ND_PRINT((ndo, " sub-diversity"));
+ ND_PRINT(" sub-diversity");
if (sublen == 0) {
- ND_PRINT((ndo, " empty"));
+ ND_PRINT(" empty");
break;
}
sep = " ";
while(sublen--) {
- ND_PRINT((ndo, "%s%s", sep, tok2str(diversity_str, "%u", EXTRACT_U_1(cp))));
+ ND_PRINT("%s%s", sep, tok2str(diversity_str, "%u", EXTRACT_U_1(cp)));
cp++;
sep = "-";
}
if(tlv_type != MESSAGE_UPDATE &&
tlv_type != MESSAGE_UPDATE_SRC_SPECIFIC)
- ND_PRINT((ndo, " (bogus)"));
+ ND_PRINT(" (bogus)");
break;
case MESSAGE_SUB_TIMESTAMP:
- ND_PRINT((ndo, " sub-timestamp"));
+ ND_PRINT(" sub-timestamp");
if(tlv_type == MESSAGE_HELLO) {
if(sublen < 4)
goto invalid;
t1 = EXTRACT_BE_U_4(cp);
- ND_PRINT((ndo, " %s", format_timestamp(t1)));
+ ND_PRINT(" %s", format_timestamp(t1));
} else if(tlv_type == MESSAGE_IHU) {
if(sublen < 8)
goto invalid;
t1 = EXTRACT_BE_U_4(cp);
- ND_PRINT((ndo, " %s", format_timestamp(t1)));
+ ND_PRINT(" %s", format_timestamp(t1));
t2 = EXTRACT_BE_U_4(cp + 4);
- ND_PRINT((ndo, "|%s", format_timestamp(t2)));
+ ND_PRINT("|%s", format_timestamp(t2));
} else
- ND_PRINT((ndo, " (bogus)"));
+ ND_PRINT(" (bogus)");
cp += sublen;
break;
default:
- ND_PRINT((ndo, " sub-unknown-0x%02x", subtype));
+ ND_PRINT(" sub-unknown-0x%02x", subtype);
cp += sublen;
} /* switch */
} /* while */
return;
invalid:
- ND_PRINT((ndo, "%s", istr));
+ nd_print_invalid(ndo);
}
#define ICHECK(i, l) \
if (length < 4)
goto invalid;
bodylen = EXTRACT_BE_U_2(cp + 2);
- ND_PRINT((ndo, " (%u)", bodylen));
+ ND_PRINT(" (%u)", bodylen);
/* Process the TLVs in the body */
i = 0;
ND_TCHECK_1(message);
if((type = EXTRACT_U_1(message)) == MESSAGE_PAD1) {
- ND_PRINT((ndo, ndo->ndo_vflag ? "\n\tPad 1" : " pad1"));
+ ND_PRINT(ndo->ndo_vflag ? "\n\tPad 1" : " pad1");
i += 1;
continue;
}
ICHECK(i, 2);
len = EXTRACT_U_1(message + 1);
- ND_TCHECK2(*message, 2 + len);
+ ND_TCHECK_LEN(message, 2 + len);
ICHECK(i, 2 + len);
switch(type) {
case MESSAGE_PADN: {
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " padN"));
+ ND_PRINT(" padN");
else
- ND_PRINT((ndo, "\n\tPad %d", len + 2));
+ ND_PRINT("\n\tPad %u", len + 2);
}
break;
case MESSAGE_ACK_REQ: {
u_short nonce, interval;
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " ack-req"));
+ ND_PRINT(" ack-req");
else {
- ND_PRINT((ndo, "\n\tAcknowledgment Request "));
+ ND_PRINT("\n\tAcknowledgment Request ");
if(len < 6) goto invalid;
nonce = EXTRACT_BE_U_2(message + 4);
interval = EXTRACT_BE_U_2(message + 6);
- ND_PRINT((ndo, "%04x %s", nonce, format_interval(interval)));
+ ND_PRINT("%04x %s", nonce, format_interval(interval));
}
}
break;
case MESSAGE_ACK: {
u_short nonce;
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " ack"));
+ ND_PRINT(" ack");
else {
- ND_PRINT((ndo, "\n\tAcknowledgment "));
+ ND_PRINT("\n\tAcknowledgment ");
if(len < 2) goto invalid;
nonce = EXTRACT_BE_U_2(message + 2);
- ND_PRINT((ndo, "%04x", nonce));
+ ND_PRINT("%04x", nonce);
}
}
break;
case MESSAGE_HELLO: {
u_short seqno, interval;
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " hello"));
+ ND_PRINT(" hello");
else {
- ND_PRINT((ndo, "\n\tHello "));
+ ND_PRINT("\n\tHello ");
if(len < 6) goto invalid;
seqno = EXTRACT_BE_U_2(message + 4);
interval = EXTRACT_BE_U_2(message + 6);
- ND_PRINT((ndo, "seqno %u interval %s", seqno, format_interval(interval)));
+ ND_PRINT("seqno %u interval %s", seqno, format_interval(interval));
/* Extra data. */
if(len > 6)
subtlvs_print(ndo, message + 8, message + 2 + len, type);
break;
case MESSAGE_IHU: {
- unsigned short txcost, interval;
+ unsigned short rxcost, interval;
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " ihu"));
+ ND_PRINT(" ihu");
else {
u_char address[16];
+ u_char ae;
int rc;
- ND_PRINT((ndo, "\n\tIHU "));
+ ND_PRINT("\n\tIHU ");
if(len < 6) goto invalid;
- txcost = EXTRACT_BE_U_2(message + 4);
+ rxcost = EXTRACT_BE_U_2(message + 4);
interval = EXTRACT_BE_U_2(message + 6);
- rc = network_address(EXTRACT_U_1(message + 2), message + 8,
+ ae = EXTRACT_U_1(message + 2);
+ rc = network_address(ae, message + 8,
len - 6, address);
- if(rc < 0) { ND_PRINT((ndo, "%s", tstr)); break; }
- ND_PRINT((ndo, "%s txcost %u interval %s",
- format_address(ndo, address), txcost, format_interval(interval)));
+ if(rc < 0) { nd_print_trunc(ndo); break; }
+ ND_PRINT("%s rxcost %u interval %s",
+ ae == 0 ? "any" : format_address(ndo, address),
+ rxcost, format_interval(interval));
/* Extra data. */
if((u_int)rc < len - 6)
subtlvs_print(ndo, message + 8 + rc, message + 2 + len,
case MESSAGE_ROUTER_ID: {
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " router-id"));
+ ND_PRINT(" router-id");
else {
- ND_PRINT((ndo, "\n\tRouter Id"));
+ ND_PRINT("\n\tRouter Id");
if(len < 10) goto invalid;
- ND_PRINT((ndo, " %s", format_id(message + 4)));
+ ND_PRINT(" %s", format_id(message + 4));
}
}
break;
case MESSAGE_NH: {
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " nh"));
+ ND_PRINT(" nh");
else {
int rc;
+ u_char ae;
u_char nh[16];
- ND_PRINT((ndo, "\n\tNext Hop"));
+ ND_PRINT("\n\tNext Hop");
if(len < 2) goto invalid;
- rc = network_address(EXTRACT_U_1(message + 2), message + 4,
+ ae = EXTRACT_U_1(message + 2);
+ rc = network_address(ae, message + 4,
len - 2, nh);
if(rc < 0) goto invalid;
- ND_PRINT((ndo, " %s", format_address(ndo, nh)));
+ ND_PRINT(" %s", ae == 0 ? "invalid AE 0" : format_address(ndo, nh));
}
}
break;
case MESSAGE_UPDATE: {
if (!ndo->ndo_vflag) {
- ND_PRINT((ndo, " update"));
+ ND_PRINT(" update");
if(len < 1)
- ND_PRINT((ndo, "/truncated"));
+ ND_PRINT("/truncated");
else
- ND_PRINT((ndo, "%s%s%s",
+ ND_PRINT("%s%s%s",
(EXTRACT_U_1(message + 3) & 0x80) ? "/prefix": "",
(EXTRACT_U_1(message + 3) & 0x40) ? "/id" : "",
- (EXTRACT_U_1(message + 3) & 0x3f) ? "/unknown" : ""));
+ (EXTRACT_U_1(message + 3) & 0x3f) ? "/unknown" : "");
} else {
u_short interval, seqno, metric;
- u_char plen;
+ u_char ae, plen;
int rc;
u_char prefix[16];
- ND_PRINT((ndo, "\n\tUpdate"));
+ ND_PRINT("\n\tUpdate");
if(len < 10) goto invalid;
- plen = message[4] + (message[2] == 1 ? 96 : 0);
- rc = network_prefix(EXTRACT_U_1(message + 2),
+ ae = EXTRACT_U_1(message + 2);
+ plen = EXTRACT_U_1(message + 4) + (EXTRACT_U_1(message + 2) == 1 ? 96 : 0);
+ rc = network_prefix(ae,
EXTRACT_U_1(message + 4),
EXTRACT_U_1(message + 5),
message + 12,
- message[2] == 1 ? v4_prefix : v6_prefix,
+ EXTRACT_U_1(message + 2) == 1 ? v4_prefix : v6_prefix,
len - 10, prefix);
if(rc < 0) goto invalid;
interval = EXTRACT_BE_U_2(message + 6);
seqno = EXTRACT_BE_U_2(message + 8);
metric = EXTRACT_BE_U_2(message + 10);
- ND_PRINT((ndo, "%s%s%s %s metric %u seqno %u interval %s",
+ ND_PRINT("%s%s%s %s metric %u seqno %u interval %s",
(EXTRACT_U_1(message + 3) & 0x80) ? "/prefix": "",
(EXTRACT_U_1(message + 3) & 0x40) ? "/id" : "",
(EXTRACT_U_1(message + 3) & 0x3f) ? "/unknown" : "",
- format_prefix(ndo, prefix, plen),
- metric, seqno, format_interval_update(interval)));
+ ae == 0 ? "any" : format_prefix(ndo, prefix, plen),
+ metric, seqno, format_interval_update(interval));
if(EXTRACT_U_1(message + 3) & 0x80) {
- if(message[2] == 1)
+ if(EXTRACT_U_1(message + 2) == 1)
memcpy(v4_prefix, prefix, 16);
else
memcpy(v6_prefix, prefix, 16);
}
break;
- case MESSAGE_REQUEST: {
+ case MESSAGE_ROUTE_REQUEST: {
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " request"));
+ ND_PRINT(" route-request");
else {
int rc;
- u_char prefix[16], plen;
- ND_PRINT((ndo, "\n\tRequest "));
+ u_char prefix[16], ae, plen;
+ ND_PRINT("\n\tRoute Request ");
if(len < 2) goto invalid;
- plen = message[3] + (message[2] == 1 ? 96 : 0);
- rc = network_prefix(EXTRACT_U_1(message + 2),
+ ae = EXTRACT_U_1(message + 2);
+ plen = EXTRACT_U_1(message + 3) + (EXTRACT_U_1(message + 2) == 1 ? 96 : 0);
+ rc = network_prefix(ae,
EXTRACT_U_1(message + 3), 0,
message + 4, NULL, len - 2, prefix);
if(rc < 0) goto invalid;
- ND_PRINT((ndo, "for %s",
- EXTRACT_U_1(message + 2) == 0 ? "any" : format_prefix(ndo, prefix, plen)));
+ ND_PRINT("for %s",
+ ae == 0 ? "any" : format_prefix(ndo, prefix, plen));
}
}
break;
- case MESSAGE_MH_REQUEST : {
+ case MESSAGE_SEQNO_REQUEST : {
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " mh-request"));
+ ND_PRINT(" seqno-request");
else {
int rc;
u_short seqno;
- u_char prefix[16], plen;
- ND_PRINT((ndo, "\n\tMH-Request "));
+ u_char prefix[16], ae, plen;
+ ND_PRINT("\n\tSeqno Request ");
if(len < 14) goto invalid;
+ ae = EXTRACT_U_1(message + 2);
seqno = EXTRACT_BE_U_2(message + 4);
- rc = network_prefix(EXTRACT_U_1(message + 2),
+ rc = network_prefix(ae,
EXTRACT_U_1(message + 3), 0,
message + 16, NULL, len - 14, prefix);
if(rc < 0) goto invalid;
- plen = message[3] + (message[2] == 1 ? 96 : 0);
- ND_PRINT((ndo, "(%u hops) for %s seqno %u id %s",
- EXTRACT_U_1(message + 6), format_prefix(ndo, prefix, plen),
- seqno, format_id(message + 8)));
+ plen = EXTRACT_U_1(message + 3) + (EXTRACT_U_1(message + 2) == 1 ? 96 : 0);
+ ND_PRINT("(%u hops) for %s seqno %u id %s",
+ EXTRACT_U_1(message + 6),
+ ae == 0 ? "invalid AE 0" : format_prefix(ndo, prefix, plen),
+ seqno, format_id(message + 8));
}
}
break;
case MESSAGE_TSPC :
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " tspc"));
+ ND_PRINT(" tspc");
else {
- ND_PRINT((ndo, "\n\tTS/PC "));
+ ND_PRINT("\n\tTS/PC ");
if(len < 6) goto invalid;
- ND_PRINT((ndo, "timestamp %u packetcounter %u", EXTRACT_BE_U_4(message + 4),
- EXTRACT_BE_U_2(message + 2)));
+ ND_PRINT("timestamp %u packetcounter %u", EXTRACT_BE_U_4(message + 4),
+ EXTRACT_BE_U_2(message + 2));
}
break;
case MESSAGE_HMAC : {
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " hmac"));
+ ND_PRINT(" hmac");
else {
unsigned j;
- ND_PRINT((ndo, "\n\tHMAC "));
+ ND_PRINT("\n\tHMAC ");
if(len < 18) goto invalid;
- ND_PRINT((ndo, "key-id %u digest-%u ", EXTRACT_BE_U_2(message + 2), len - 2));
+ ND_PRINT("key-id %u digest-%u ", EXTRACT_BE_U_2(message + 2), len - 2);
for (j = 0; j < len - 2; j++)
- ND_PRINT((ndo, "%02X", EXTRACT_U_1(message + j + 4)));
+ ND_PRINT("%02X", EXTRACT_U_1(message + j + 4));
}
}
break;
case MESSAGE_UPDATE_SRC_SPECIFIC : {
if(!ndo->ndo_vflag) {
- ND_PRINT((ndo, " ss-update"));
+ ND_PRINT(" ss-update");
} else {
u_char prefix[16], src_prefix[16];
u_short interval, seqno, metric;
u_char ae, plen, src_plen, omitted;
int rc;
int parsed_len = 10;
- ND_PRINT((ndo, "\n\tSS-Update"));
+ ND_PRINT("\n\tSS-Update");
if(len < 10) goto invalid;
ae = EXTRACT_U_1(message + 2);
src_plen = EXTRACT_U_1(message + 3);
src_plen += 96;
parsed_len += rc;
- ND_PRINT((ndo, " %s from", format_prefix(ndo, prefix, plen)));
- ND_PRINT((ndo, " %s metric %u seqno %u interval %s",
+ ND_PRINT(" %s from", format_prefix(ndo, prefix, plen));
+ ND_PRINT(" %s metric %u seqno %u interval %s",
format_prefix(ndo, src_prefix, src_plen),
- metric, seqno, format_interval_update(interval)));
+ metric, seqno, format_interval_update(interval));
/* extra data? */
if((u_int)parsed_len < len)
subtlvs_print(ndo, message + 2 + parsed_len,
case MESSAGE_REQUEST_SRC_SPECIFIC : {
if(!ndo->ndo_vflag)
- ND_PRINT((ndo, " ss-request"));
+ ND_PRINT(" ss-request");
else {
int rc, parsed_len = 3;
u_char ae, plen, src_plen, prefix[16], src_prefix[16];
- ND_PRINT((ndo, "\n\tSS-Request "));
+ ND_PRINT("\n\tSS-Request ");
if(len < 3) goto invalid;
ae = EXTRACT_U_1(message + 2);
plen = EXTRACT_U_1(message + 3);
src_plen += 96;
parsed_len += rc;
if(ae == 0) {
- ND_PRINT((ndo, "for any"));
+ ND_PRINT("for any");
} else {
- ND_PRINT((ndo, "for (%s, ", format_prefix(ndo, prefix, plen)));
- ND_PRINT((ndo, "%s)", format_prefix(ndo, src_prefix, src_plen)));
+ ND_PRINT("for (%s, ", format_prefix(ndo, prefix, plen));
+ ND_PRINT("%s)", format_prefix(ndo, src_prefix, src_plen));
}
}
}
case MESSAGE_MH_REQUEST_SRC_SPECIFIC : {
if(!ndo->ndo_vflag)
- ND_PRINT((ndo, " ss-mh-request"));
+ ND_PRINT(" ss-mh-request");
else {
int rc, parsed_len = 14;
u_short seqno;
u_char ae, plen, src_plen, prefix[16], src_prefix[16], hopc;
const u_char *router_id = NULL;
- ND_PRINT((ndo, "\n\tSS-MH-Request "));
+ ND_PRINT("\n\tSS-MH-Request ");
if(len < 14) goto invalid;
ae = EXTRACT_U_1(message + 2);
plen = EXTRACT_U_1(message + 3);
if(rc < 0) goto invalid;
if(ae == 1)
src_plen += 96;
- ND_PRINT((ndo, "(%u hops) for (%s, ",
- hopc, format_prefix(ndo, prefix, plen)));
- ND_PRINT((ndo, "%s) seqno %u id %s",
+ ND_PRINT("(%u hops) for (%s, ",
+ hopc, format_prefix(ndo, prefix, plen));
+ ND_PRINT("%s) seqno %u id %s",
format_prefix(ndo, src_prefix, src_plen),
- seqno, format_id(router_id)));
+ seqno, format_id(router_id));
}
}
break;
default:
if (!ndo->ndo_vflag)
- ND_PRINT((ndo, " unknown"));
+ ND_PRINT(" unknown");
else
- ND_PRINT((ndo, "\n\tUnknown message type %d", type));
+ ND_PRINT("\n\tUnknown message type %u", type);
}
i += len + 2;
}
return;
trunc:
- ND_PRINT((ndo, " %s", tstr));
+ nd_print_trunc(ndo);
return;
invalid:
- ND_PRINT((ndo, "%s", istr));
+ nd_print_invalid(ndo);
return;
}
projects / tcpdump / blobdiff