#ifndef lint
static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-bgp.c,v 1.35 2002-07-14 09:36:00 hannes Exp $";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-bgp.c,v 1.39 2002-07-22 14:09:07 hannes Exp $";
#endif
#include <sys/param.h>
#define BGP_UPDATE 2
#define BGP_NOTIFICATION 3
#define BGP_KEEPALIVE 4
+#define BGP_ROUTE_REFRESH 5
static struct tok bgp_msg_values[] = {
{ BGP_OPEN, "Open"},
{ BGP_UPDATE, "Update"},
{ BGP_NOTIFICATION, "Notification"},
{ BGP_KEEPALIVE, "Keepalive"},
+ { BGP_ROUTE_REFRESH, "Route Refresh"},
{ 0, NULL}
};
{ 0, NULL}
};
+#define BGP_OPT_AUTH 1
+#define BGP_OPT_CAP 2
+
+
static struct tok bgp_opt_values[] = {
- { 1, "Authentication Information"},
- { 2, "Capabilities Advertisement"},
+ { BGP_OPT_AUTH, "Authentication Information"},
+ { BGP_OPT_CAP, "Capabilities Advertisement"},
+ { 0, NULL}
+};
+
+#define BGP_CAPCODE_MP 1
+#define BGP_CAPCODE_RR 2
+#define BGP_CAPCODE_RR_CISCO 128
+
+static struct tok bgp_capcode_values[] = {
+ { BGP_CAPCODE_MP, "Multiprotocol Extensions"},
+ { BGP_CAPCODE_RR, "Route Refresh"},
+ { BGP_CAPCODE_RR_CISCO, "Route Refresh (Cisco)"},
{ 0, NULL}
};
};
static struct tok bgp_origin_values[] = {
- { 1, "IGP"},
- { 2, "EGP"},
- { 3, "Incomplete"},
+ { 0, "IGP"},
+ { 1, "EGP"},
+ { 2, "Incomplete"},
{ 0, NULL}
};
{ 0, NULL},
};
+static struct tok bgp_extd_comm_subtype_values[] = {
+ { 2, "target"},
+ { 3, "origin"},
+ { 4, "link-BW"},
+ { 0, NULL},
+};
+
static int
decode_prefix4(const u_char *pd, char *buf, u_int buflen)
{
#endif
static void
-bgp_attr_print(const struct bgp_attr *attr, const u_char *dat, int len)
+bgp_attr_print(const struct bgp_attr *attr, const u_char *pptr, int len)
{
int i;
u_int16_t af;
u_int8_t safi, snpa;
int advance;
int tlen;
- const u_char *p;
+ const u_char *tptr;
char buf[MAXHOSTNAMELEN + 100];
- p = dat;
+ tptr = pptr;
+ tlen=len;
switch (attr->bgpa_type) {
case BGPTYPE_ORIGIN:
if (len != 1)
- printf(" invalid len");
+ printf("invalid len");
else
- printf(" %s", tok2str(bgp_origin_values, "Unknown Origin Typecode", p[0]));
+ printf("%s", tok2str(bgp_origin_values, "Unknown Origin Typecode", tptr[0]));
break;
case BGPTYPE_AS_PATH:
if (len % 2) {
- printf(" invalid len");
+ printf("invalid len");
break;
}
- while (p < dat + len) {
+ if (!len) {
+ printf("empty");
+ break;
+ }
+ while (tptr < pptr + len) {
/*
* under RFC1965, p[0] means:
* 1: AS_SET 2: AS_SEQUENCE
* 3: AS_CONFED_SET 4: AS_CONFED_SEQUENCE
*/
- printf(" ");
- if (p[0] == 3 || p[0] == 4)
+ if (tptr[0] == 3 || tptr[0] == 4)
printf("confed");
- printf("%s", (p[0] & 1) ? "{" : "");
- for (i = 0; i < p[1] * 2; i += 2) {
+ printf("%s", (tptr[0] & 1) ? "{" : "");
+ for (i = 0; i < tptr[1] * 2; i += 2) {
printf("%s%u", i == 0 ? "" : " ",
- EXTRACT_16BITS(&p[2 + i]));
+ EXTRACT_16BITS(&tptr[2 + i]));
}
- printf("%s", (p[0] & 1) ? "}" : "");
- p += 2 + p[1] * 2;
+ printf("%s", (tptr[0] & 1) ? "}" : "");
+ tptr += 2 + tptr[1] * 2;
}
break;
case BGPTYPE_NEXT_HOP:
if (len != 4)
- printf(" invalid len");
+ printf("invalid len");
else
- printf(" %s", getname(p));
+ printf("%s", getname(tptr));
break;
case BGPTYPE_MULTI_EXIT_DISC:
case BGPTYPE_LOCAL_PREF:
if (len != 4)
- printf(" invalid len");
+ printf("invalid len");
else
- printf(" %u", EXTRACT_32BITS(p));
+ printf("%u", EXTRACT_32BITS(tptr));
break;
case BGPTYPE_ATOMIC_AGGREGATE:
if (len != 0)
- printf(" invalid len");
+ printf("invalid len");
break;
case BGPTYPE_AGGREGATOR:
if (len != 6) {
- printf(" invalid len");
+ printf("invalid len");
break;
}
- printf(" AS #%u, origin %s", EXTRACT_16BITS(p),
- getname(p + 2));
+ printf(" AS #%u, origin %s", EXTRACT_16BITS(tptr),
+ getname(tptr + 2));
break;
case BGPTYPE_COMMUNITIES:
if (len % 4) {
- printf(" invalid len");
+ printf("invalid len");
break;
}
- for (i = 0; i < len; i += 4) {
+ while (tlen>0) {
u_int32_t comm;
- comm = EXTRACT_32BITS(&p[i]);
+ comm = EXTRACT_32BITS(tptr);
switch (comm) {
case BGP_COMMUNITY_NO_EXPORT:
printf(" NO_EXPORT");
printf(" NO_EXPORT_SUBCONFED");
break;
default:
- printf(" (AS #%d value 0x%04x)",
- (comm >> 16) & 0xffff, comm & 0xffff);
+ printf("%u:%u%s",
+ (comm >> 16) & 0xffff,
+ comm & 0xffff,
+ (tlen>4) ? ", " : "");
break;
}
+ tlen -=4;
+ tptr +=4;
}
break;
+ case BGPTYPE_ORIGINATOR_ID:
+ if (len != 4) {
+ printf("invalid len");
+ break;
+ }
+ printf("%s",getname(tptr));
+ break;
+ case BGPTYPE_CLUSTER_LIST:
+ while (tlen>0) {
+ printf("%s%s",
+ getname(tptr),
+ (tlen>4) ? ", " : "");
+ tlen -=4;
+ tptr +=4;
+ }
+ break;
case BGPTYPE_MP_REACH_NLRI:
- af = EXTRACT_16BITS(p);
- safi = p[2];
+ af = EXTRACT_16BITS(tptr);
+ safi = tptr[2];
- printf(" AFI %s, %sSAFI %s,",
+ printf("\n\t AFI: %s (%u), %sSAFI: %s (%u)",
tok2str(bgp_afi_values, "Unknown AFI", af),
+ af,
(safi>128) ? "vendor specific " : "", /* 128 is meanwhile wellknown */
- tok2str(bgp_safi_values, "Unknown SAFI", safi));
-
- p += 3;
+ tok2str(bgp_safi_values, "Unknown SAFI", safi),
+ safi);
if (af == AFNUM_INET)
;
else if (af == AFNUM_INET6)
;
#endif
- else
- break;
+ else {
+ printf("\n\t no AFI %u decoder",af);
+ if (!vflag)
+ print_unknown_data(tptr,"\n\t ",tlen);
+ break;
+ }
+
+ tptr +=3;
+
+ tlen = tptr[0];
+ tptr++;
- tlen = p[0];
if (tlen) {
- printf(" nexthop");
- i = 0;
- while (i < tlen) {
+ printf("\n\t nexthop: ");
+ while (tlen > 0) {
switch (af) {
case AFNUM_INET:
- printf(" %s", getname(p + 1 + i));
- i += sizeof(struct in_addr);
+ switch(safi) {
+ case SAFNUM_UNICAST:
+ case SAFNUM_MULTICAST:
+ case SAFNUM_UNIMULTICAST:
+ case SAFNUM_LABUNICAST:
+ printf("%s", getname(tptr));
+ tlen -= sizeof(struct in_addr);
+ tptr += sizeof(struct in_addr);
break;
+ default:
+ printf("no SAFI %u decoder",safi);
+ if (!vflag)
+ print_unknown_data(tptr,"\n\t ",tlen);
+ break;
+ }
+ break;
#ifdef INET6
case AFNUM_INET6:
- printf(" %s", getname6(p + 1 + i));
- i += sizeof(struct in6_addr);
- break;
+ switch(safi) {
+ case SAFNUM_UNICAST:
+ case SAFNUM_MULTICAST:
+ case SAFNUM_UNIMULTICAST:
+ case SAFNUM_LABUNICAST:
+ printf("%s", getname6(tptr));
+ tlen -= sizeof(struct in6_addr);
+ tptr += sizeof(struct in6_addr);
+ break;
+ default:
+ printf("no SAFI %u decoder",safi);
+ if (!vflag)
+ print_unknown_data(tptr,"\n\t ",tlen);
+ break;
+ }
#endif
default:
- printf(" (unknown af)");
- i = tlen; /*exit loop*/
- break;
+ printf("no AFI %u decoder",af);
+ if (!vflag)
+ print_unknown_data(tptr,"\n\t ",tlen);
+ break;
}
}
- printf(",");
}
- p += 1 + tlen;
+ tptr += tlen;
+
+ snpa = tptr[0];
+ tptr++;
- snpa = p[0];
- p++;
if (snpa) {
- printf(" %u snpa", snpa);
+ printf("\n\t %u SNPA", snpa);
for (/*nothing*/; snpa > 0; snpa--) {
- printf("(%d bytes)", p[0]);
- p += p[0] + 1;
+ printf("\n\t %d bytes", tptr[0]);
+ tptr += tptr[0] + 1;
}
- printf(",");
} else {
- printf(" no spna,");
+ printf(", no SNPA");
}
- printf(" NLRI");
- while (len - (p - dat) > 0) {
+ while (len - (tptr - pptr) > 0) {
switch (af) {
case AFNUM_INET:
switch (safi) {
case SAFNUM_UNICAST:
case SAFNUM_MULTICAST:
case SAFNUM_UNIMULTICAST:
- advance = decode_prefix4(p, buf, sizeof(buf));
- printf(" %s", buf);
+ advance = decode_prefix4(tptr, buf, sizeof(buf));
+ printf("\n\t %s", buf);
break;
case SAFNUM_LABUNICAST:
- advance = decode_labeled_prefix4(p, buf, sizeof(buf));
- printf(" %s", buf);
+ advance = decode_labeled_prefix4(tptr, buf, sizeof(buf));
+ printf("\n\t %s", buf);
break;
default:
- printf(" (no SAFI %u decoder)",safi);
+ printf("\n\t no SAFI %u decoder",safi);
+ if (!vflag)
+ print_unknown_data(tptr-3,"\n\t ",tlen);
advance = 0;
- p = dat + len;
+ tptr = pptr + len;
break;
}
break;
case SAFNUM_UNICAST:
case SAFNUM_MULTICAST:
case SAFNUM_UNIMULTICAST:
- advance = decode_prefix6(p, buf, sizeof(buf));
- printf(" %s", buf);
+ advance = decode_prefix6(tptr, buf, sizeof(buf));
+ printf("\n\t %s", buf);
break;
default:
- printf(" (no SAFI %u decoder)",safi);
+ printf("\n\t no SAFI %u decoder ",safi);
+ if (!vflag)
+ print_unknown_data(tptr-3,"\n\t ",tlen);
advance = 0;
- p = dat + len;
+ tptr = ptr + len;
break;
}
break;
#endif
default:
- printf(" (unknown AF)");
+ printf("\n\t no AFI %u decoder ",af);
+ if (!vflag)
+ print_unknown_data(tptr-3,"\n\t ",tlen);
advance = 0;
- p = dat + len;
+ tptr = pptr + len;
break;
}
- p += advance;
+ tptr += advance;
}
break;
case BGPTYPE_MP_UNREACH_NLRI:
- af = EXTRACT_16BITS(p);
- safi = p[2];
+ af = EXTRACT_16BITS(tptr);
+ safi = tptr[2];
- printf(" AFI %s, %sSAFI %s,",
+ printf("\n\t AFI: %s (%u), %sSAFI: %s (%u)",
tok2str(bgp_afi_values, "Unknown AFI", af),
+ af,
(safi>128) ? "vendor specific " : "", /* 128 is meanwhile wellknown */
- tok2str(bgp_safi_values, "Unknown SAFI", safi));
+ tok2str(bgp_safi_values, "Unknown SAFI", safi),
+ safi);
- p += 3;
-
- printf(" Withdrawn routes");
+ tptr += 3;
- while (len - (p - dat) > 0) {
+ while (len - (tptr - pptr) > 0) {
switch (af) {
case AFNUM_INET:
switch (safi) {
case SAFNUM_UNICAST:
case SAFNUM_MULTICAST:
case SAFNUM_UNIMULTICAST:
- advance = decode_prefix4(p, buf, sizeof(buf));
- printf(" %s", buf);
+ advance = decode_prefix4(tptr, buf, sizeof(buf));
+ printf("\n\t %s", buf);
break;
case SAFNUM_LABUNICAST:
- advance = decode_labeled_prefix4(p, buf, sizeof(buf));
- printf(" %s", buf);
+ advance = decode_labeled_prefix4(tptr, buf, sizeof(buf));
+ printf("\n\t %s", buf);
break;
default:
- printf(" (no SAFI %u decoder)",safi);
+ printf("\n\t no SAFI %u decoder",safi);
+ if (!vflag)
+ print_unknown_data(tptr-3,"\n\t ",tlen);
advance = 0;
- p = dat + len;
+ tptr = pptr + len;
break;
}
break;
case SAFNUM_UNICAST:
case SAFNUM_MULTICAST:
case SAFNUM_UNIMULTICAST:
- advance = decode_prefix6(p, buf, sizeof(buf));
- printf(" %s", buf);
+ advance = decode_prefix6(tptr, buf, sizeof(buf));
+ printf("\n\t %s", buf);
break;
default:
- printf(" (no SAFI %u decoder)",safi);
+ printf("\n\t no SAFI %u decoder",safi);
+ if (!vflag)
+ print_unknown_data(tptr-3,"\n\t ",tlen);
advance = 0;
- p = dat + len;
+ tptr = pptr + len;
break;
}
break;
#endif
default:
- printf(" (unknown AF)");
+ printf("\n\t no AFI %u decoder",af);
+ if (!vflag)
+ print_unknown_data(tptr-3,"\n\t ",tlen);
advance = 0;
- p = dat + len;
+ tptr = pptr + len;
break;
}
- p += advance;
+ tptr += advance;
}
break;
+ case BGPTYPE_EXTD_COMMUNITIES:
+ if (len % 8) {
+ printf("invalid len");
+ break;
+ }
+ while (tlen>0) {
+ u_int8_t extd_comm,extd_comm_type,extd_comm_subtype;
+ extd_comm=*tptr;
+ extd_comm_type=extd_comm&0x3f;
+ extd_comm_subtype=*(tptr+1);
+ switch(extd_comm_type) {
+ case 0:
+ printf("%s%s%s:%u:%s%s",
+ (extd_comm&0x80) ? "vendor-specific: " : "",
+ (extd_comm&0x40) ? "non-transitive:" : "",
+ tok2str(bgp_extd_comm_subtype_values,
+ "unknown",
+ extd_comm_subtype&0x3f),
+ EXTRACT_16BITS(tptr+2),
+ getname(tptr+4),
+ (tlen>8) ? ", " : "");
+ break;
+ case 1:
+ printf("%s%s%s:%s:%u%s",
+ (extd_comm&0x80) ? "vendor-specific: " : "",
+ (extd_comm&0x40) ? "non-transitive:" : "",
+ tok2str(bgp_extd_comm_subtype_values,
+ "unknown",
+ extd_comm_subtype&0x3f),
+ getname(tptr+2),
+ EXTRACT_16BITS(tptr+6),
+ (tlen>8) ? ", " : "");
+ break;
+ case 2:
+ printf("%s%s%s:%u:%u%s",
+ (extd_comm&0x80) ? "vendor-specific: " : "",
+ (extd_comm&0x40) ? "non-transitive:" : "",
+ tok2str(bgp_extd_comm_subtype_values,
+ "unknown",
+ extd_comm_subtype&0x3f),
+ EXTRACT_32BITS(tptr+2),
+ EXTRACT_16BITS(tptr+6),
+ (tlen>8) ? ", " : "");
+ break;
+
+ default:
+ printf("\n\t no typecode %u decoder",
+ extd_comm_type);
+ print_unknown_data(tptr,"\n\t ",8);
+ break;
+ }
+ tlen -=8;
+ tptr +=8;
+ }
+ break;
+
default:
- break;
+ printf("\n\t no Attribute %u decoder",attr->bgpa_type); /* we have no decoder for the attribute */
+ if (!vflag)
+ print_unknown_data(pptr,"\n\t ",len);
+ break;
}
+ if (vflag&&len) /* omit zero length attributes*/
+ print_unknown_data(pptr,"\n\t ",len);
}
static void
struct bgp_opt bgpopt;
int hlen;
const u_char *opt;
- int i;
+ int i,cap_type,cap_len;
TCHECK2(dat[0], BGP_OPEN_SIZE);
memcpy(&bgpo, dat, BGP_OPEN_SIZE);
hlen = ntohs(bgpo.bgpo_len);
- printf(": Version %d,", bgpo.bgpo_version);
- printf(" AS #%u,", ntohs(bgpo.bgpo_myas));
- printf(" Holdtime %u,", ntohs(bgpo.bgpo_holdtime));
- printf(" ID %s,", getname((u_char *)&bgpo.bgpo_id));
- printf(" Option length %u", bgpo.bgpo_optlen);
+ printf("\n\t Version %d, ", bgpo.bgpo_version);
+ printf("my AS %u, ", ntohs(bgpo.bgpo_myas));
+ printf("Holdtime %us, ", ntohs(bgpo.bgpo_holdtime));
+ printf("ID %s", getname((u_char *)&bgpo.bgpo_id));
+ printf("\n\t Optional parameters, length %u", bgpo.bgpo_optlen);
/* ugly! */
opt = &((const struct bgp_open *)dat)->bgpo_optlen;
TCHECK2(opt[i], BGP_OPT_SIZE);
memcpy(&bgpopt, &opt[i], BGP_OPT_SIZE);
if (i + 2 + bgpopt.bgpopt_len > bgpo.bgpo_optlen) {
- printf(" [|opt %d %d]", bgpopt.bgpopt_len, bgpopt.bgpopt_type);
+ printf("\n\t Option %d, length %d", bgpopt.bgpopt_type, bgpopt.bgpopt_len);
break;
}
- printf(" (option %s, len=%d)",
+ printf("\n\t Option %s (%u), length %d",
tok2str(bgp_opt_values,"Unknown", bgpopt.bgpopt_type),
+ bgpopt.bgpopt_type,
bgpopt.bgpopt_len);
+
+ /* now lets decode the options we know*/
+ switch(bgpopt.bgpopt_type) {
+ case BGP_OPT_CAP:
+ cap_type=opt[i+BGP_OPT_SIZE];
+ cap_len=opt[i+BGP_OPT_SIZE+1];
+ printf("\n\t %s, length %u",
+ tok2str(bgp_capcode_values,"Unknown", cap_type),
+ cap_len);
+ switch(cap_type) {
+ case BGP_CAPCODE_MP:
+ printf("\n\t\tAFI %s (%u), SAFI %s (%u)",
+ tok2str(bgp_afi_values,"Unknown", EXTRACT_16BITS(opt+i+BGP_OPT_SIZE+2)),
+ EXTRACT_16BITS(opt+i+BGP_OPT_SIZE+2),
+ tok2str(bgp_safi_values,"Unknown", opt[i+BGP_OPT_SIZE+5]),
+ opt[i+BGP_OPT_SIZE+5]);
+ break;
+ case BGP_CAPCODE_RR:
+ case BGP_CAPCODE_RR_CISCO:
+ break;
+ default:
+ printf("\n\t\tno decoder for Capability %u",
+ cap_type);
+ break;
+ }
+ break;
+ case BGP_OPT_AUTH:
+ default:
+ printf("\n\t no decoder for option %u",
+ bgpopt.bgpopt_type);
+ break;
+ }
+
i += BGP_OPT_SIZE + bgpopt.bgpopt_len;
}
return;
const u_char *p;
int len;
int i;
- int newline;
TCHECK2(dat[0], BGP_SIZE);
memcpy(&bgp, dat, BGP_SIZE);
hlen = ntohs(bgp.bgp_len);
p = dat + BGP_SIZE; /*XXX*/
- printf(":");
/* Unfeasible routes */
len = EXTRACT_16BITS(p);
* so only try to decode it if we're not v6 enabled.
*/
#ifdef INET6
- printf(" (Withdrawn routes: %d bytes)", len);
+ printf("\n\t Withdrawn routes: %d bytes", len);
#else
char buf[MAXHOSTNAMELEN + 100];
TCHECK2(p[2], len);
i = 2;
- printf(" (Withdrawn routes:");
+ printf("\n\t Withdrawn routes:");
while(i < 2 + len) {
i += decode_prefix4(&p[i], buf, sizeof(buf));
- printf(" %s", buf);
+ printf("\n\t %s", buf);
}
- printf(")\n");
#endif
}
p += 2 + len;
if (len) {
/* do something more useful!*/
i = 2;
- printf(" (Path attributes:"); /* ) */
- newline = 0;
while (i < 2 + len) {
int alen, aoff;
alen = bgp_attr_len(&bgpa);
aoff = bgp_attr_off(&bgpa);
- if (vflag && newline)
- printf("\n\t\t");
- else
- printf(" ");
+ printf("\n\t %s (%u), length: %u",
+ tok2str(bgp_attr_values, "Unknown Attribute", bgpa.bgpa_type),
+ bgpa.bgpa_type,
+ alen);
- printf("(%s", tok2str(bgp_attr_values, "Unknown Attribute", bgpa.bgpa_type));
if (bgpa.bgpa_flags) {
- printf("[%s%s%s%s",
+ printf(", flags [%s%s%s%s",
bgpa.bgpa_flags & 0x80 ? "O" : "",
bgpa.bgpa_flags & 0x40 ? "T" : "",
bgpa.bgpa_flags & 0x20 ? "P" : "",
bgpa.bgpa_flags & 0x10 ? "E" : "");
if (bgpa.bgpa_flags & 0xf)
printf("+%x", bgpa.bgpa_flags & 0xf);
- printf("]");
+ printf("]: ");
}
-
bgp_attr_print(&bgpa, &p[i + aoff], alen);
- newline = 1;
-
- /* ( */
- printf(")");
-
i += aoff + alen;
}
-
- /* ( */
- printf(")");
}
p += 2 + len;
- if (len && dat + length > p)
- printf("\n\t\t");
if (dat + length > p) {
- printf("(NLRI:"); /* ) */
+ printf("\n\t Updated routes:");
while (dat + length > p) {
char buf[MAXHOSTNAMELEN + 100];
i = decode_prefix4(p, buf, sizeof(buf));
- printf(" %s", buf);
+ printf("\n\t %s", buf);
if (i < 0)
break;
p += i;
}
-
- /* ( */
- printf(")");
}
return;
trunc:
memcpy(&bgpn, dat, BGP_NOTIFICATION_SIZE);
hlen = ntohs(bgpn.bgpn_len);
- printf(": error %s,", tok2str(bgp_notify_major_values, "Unknown", bgpn.bgpn_major));
+ printf(", Error - %s", tok2str(bgp_notify_major_values, "Unknown", bgpn.bgpn_major));
switch (bgpn.bgpn_major) {
TCHECK2(dat[0], BGP_SIZE);
memcpy(&bgp, dat, BGP_SIZE);
- printf("(%s", tok2str(bgp_msg_values, "Unknown Message Type", bgp.bgp_type));
+ printf("\n\t%s Message (%u), length: %u ",
+ tok2str(bgp_msg_values, "Unknown", bgp.bgp_type),
+ bgp.bgp_type,
+ length);
switch (bgp.bgp_type) {
case BGP_OPEN:
case BGP_NOTIFICATION:
bgp_notification_print(dat, length);
break;
+ case BGP_KEEPALIVE:
+ break;
+ default:
+ /* we have no decoder for the BGP message */
+ printf("\n\t no Message %u decoder",bgp.bgp_type);
+ print_unknown_data(dat,"\n\t ",length);
+ break;
}
-
- /* ( */
- printf(")");
return;
trunc:
printf("[|BGP]");
};
struct bgp bgp;
u_int16_t hlen;
- int newline;
ep = dat + length;
if (snapend < dat + length)
printf(": BGP");
p = dat;
- newline = 0;
start = p;
while (p < snapend) {
if (!TTEST2(p[0], 1))
printf(" [|BGP]");
hlen = ntohs(bgp.bgp_len);
- if (vflag && newline)
- printf("\n\t");
- else
- printf(" ");
+
if (TTEST2(p[0], hlen)) {
bgp_header_print(p, hlen);
- newline = 1;
p += hlen;
start = p;
} else {
+
+
+
+
+
projects / tcpdump / blobdiff