*/
#ifndef lint
-static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-pim.c,v 1.15 1999-12-14 16:58:03 fenner Exp $ (LBL)";
+static const char rcsid[] _U_ =
+ "@(#) $Header: /tcpdump/master/tcpdump/print-pim.c,v 1.49 2006-02-13 01:31:35 hannes Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/socket.h>
+#include <tcpdump-stdinc.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-/*
-#include <netinet/ip_var.h>
-#include <netinet/udp.h>
-#include <netinet/udp_var.h>
-#include <netinet/tcp.h>
-*/
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+
+#include "ip.h"
+
+#define PIMV2_TYPE_HELLO 0
+#define PIMV2_TYPE_REGISTER 1
+#define PIMV2_TYPE_REGISTER_STOP 2
+#define PIMV2_TYPE_JOIN_PRUNE 3
+#define PIMV2_TYPE_BOOTSTRAP 4
+#define PIMV2_TYPE_ASSERT 5
+#define PIMV2_TYPE_GRAFT 6
+#define PIMV2_TYPE_GRAFT_ACK 7
+#define PIMV2_TYPE_CANDIDATE_RP 8
+#define PIMV2_TYPE_PRUNE_REFRESH 9
+
+static struct tok pimv2_type_values[] = {
+ { PIMV2_TYPE_HELLO, "Hello" },
+ { PIMV2_TYPE_REGISTER, "Register" },
+ { PIMV2_TYPE_REGISTER_STOP, "Register Stop" },
+ { PIMV2_TYPE_JOIN_PRUNE, "Join / Prune" },
+ { PIMV2_TYPE_BOOTSTRAP, "Bootstrap" },
+ { PIMV2_TYPE_ASSERT, "Assert" },
+ { PIMV2_TYPE_GRAFT, "Graft" },
+ { PIMV2_TYPE_GRAFT_ACK, "Graft Acknowledgement" },
+ { PIMV2_TYPE_CANDIDATE_RP, "Candidate RP Advertisement" },
+ { PIMV2_TYPE_PRUNE_REFRESH, "Prune Refresh" },
+ { 0, NULL}
+};
+
+#define PIMV2_HELLO_OPTION_HOLDTIME 1
+#define PIMV2_HELLO_OPTION_LANPRUNEDELAY 2
+#define PIMV2_HELLO_OPTION_DR_PRIORITY_OLD 18
+#define PIMV2_HELLO_OPTION_DR_PRIORITY 19
+#define PIMV2_HELLO_OPTION_GENID 20
+#define PIMV2_HELLO_OPTION_REFRESH_CAP 21
+#define PIMV2_HELLO_OPTION_BIDIR_CAP 22
+#define PIMV2_HELLO_OPTION_ADDRESS_LIST 24
+#define PIMV2_HELLO_OPTION_ADDRESS_LIST_OLD 65001
+
+static struct tok pimv2_hello_option_values[] = {
+ { PIMV2_HELLO_OPTION_HOLDTIME, "Hold Time" },
+ { PIMV2_HELLO_OPTION_LANPRUNEDELAY, "LAN Prune Delay" },
+ { PIMV2_HELLO_OPTION_DR_PRIORITY_OLD, "DR Priority (Old)" },
+ { PIMV2_HELLO_OPTION_DR_PRIORITY, "DR Priority" },
+ { PIMV2_HELLO_OPTION_GENID, "Generation ID" },
+ { PIMV2_HELLO_OPTION_REFRESH_CAP, "State Refresh Capability" },
+ { PIMV2_HELLO_OPTION_BIDIR_CAP, "Bi-Directional Capability" },
+ { PIMV2_HELLO_OPTION_ADDRESS_LIST, "Address List" },
+ { PIMV2_HELLO_OPTION_ADDRESS_LIST_OLD, "Address List (Old)" },
+ { 0, NULL}
+};
+
+#define PIMV2_REGISTER_FLAG_LEN 4
+#define PIMV2_REGISTER_FLAG_BORDER 0x80000000
+#define PIMV2_REGISTER_FLAG_NULL 0x40000000
+
+static struct tok pimv2_register_flag_values[] = {
+ { PIMV2_REGISTER_FLAG_BORDER, "Border" },
+ { PIMV2_REGISTER_FLAG_NULL, "Null" },
+ { 0, NULL}
+};
/*
* XXX: We consider a case where IPv6 is not ready yet for portability,
* but PIM dependent defintions should be independent of IPv6...
*/
-#ifdef INET6
-#include <netinet6/pim6.h>
-#else
+
struct pim {
-#if defined(WORDS_BIGENDIAN) || (defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN))
- u_int pim_type:4, /* the PIM message type, currently they are:
- * Hello, Register, Register-Stop, Join/Prune,
- * Bootstrap, Assert, Graft (PIM-DM only),
- * Graft-Ack (PIM-DM only), C-RP-Adv
- */
- pim_ver:4; /* PIM version number; 2 for PIMv2 */
-#else
- u_int pim_ver:4, /* PIM version */
- pim_type:4; /* PIM type */
-#endif
+ u_int8_t pim_typever;
+ /* upper 4bit: PIM version number; 2 for PIMv2 */
+ /* lower 4bit: the PIM message type, currently they are:
+ * Hello, Register, Register-Stop, Join/Prune,
+ * Bootstrap, Assert, Graft (PIM-DM only),
+ * Graft-Ack (PIM-DM only), C-RP-Adv
+ */
+#define PIM_VER(x) (((x) & 0xf0) >> 4)
+#define PIM_TYPE(x) ((x) & 0x0f)
u_char pim_rsv; /* Reserved */
u_short pim_cksum; /* IP style check sum */
};
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "interface.h"
-#include "addrtoname.h"
-#include "extract.h"
-
-static void pimv2_print(register const u_char *bp, register u_int len);
+static void pimv2_print(register const u_char *bp, register u_int len, u_int cksum);
static void
pimv1_join_prune_print(register const u_char *bp, register u_int len)
{
- int maddrlen, addrlen, ngroups, njoin, nprune;
- int njp;
-
- /* If it's a single group and a single source, use 1-line output. */
- if (TTEST2(bp[0], 30) && bp[11] == 1 &&
- ((njoin = EXTRACT_16BITS(&bp[20])) + EXTRACT_16BITS(&bp[22])) == 1) {
- int hold;
-
- (void)printf(" RPF %s ", ipaddr_string(bp));
- hold = EXTRACT_16BITS(&bp[6]);
- if (hold != 180) {
- (void)printf("Hold ");
- relts_print(hold);
- }
- (void)printf("%s (%s/%d, %s", njoin ? "Join" : "Prune",
- ipaddr_string(&bp[26]), bp[25] & 0x3f,
- ipaddr_string(&bp[12]));
- if (EXTRACT_32BITS(&bp[16]) != 0xffffffff)
- (void)printf("/%s", ipaddr_string(&bp[16]));
- (void)printf(") %s%s %s",
+ int maddrlen, addrlen, ngroups, njoin, nprune;
+ int njp;
+
+ /* If it's a single group and a single source, use 1-line output. */
+ if (TTEST2(bp[0], 30) && bp[11] == 1 &&
+ ((njoin = EXTRACT_16BITS(&bp[20])) + EXTRACT_16BITS(&bp[22])) == 1) {
+ int hold;
+
+ (void)printf(" RPF %s ", ipaddr_string(bp));
+ hold = EXTRACT_16BITS(&bp[6]);
+ if (hold != 180) {
+ (void)printf("Hold ");
+ relts_print(hold);
+ }
+ (void)printf("%s (%s/%d, %s", njoin ? "Join" : "Prune",
+ ipaddr_string(&bp[26]), bp[25] & 0x3f,
+ ipaddr_string(&bp[12]));
+ if (EXTRACT_32BITS(&bp[16]) != 0xffffffff)
+ (void)printf("/%s", ipaddr_string(&bp[16]));
+ (void)printf(") %s%s %s",
(bp[24] & 0x01) ? "Sparse" : "Dense",
(bp[25] & 0x80) ? " WC" : "",
(bp[25] & 0x40) ? "RP" : "SPT");
- return;
- }
-
- TCHECK2(bp[0], 4);
- (void)printf("\n Upstream Nbr: %s", ipaddr_string(bp));
- TCHECK2(bp[6], 2);
- (void)printf("\n Hold time: ");
- relts_print(EXTRACT_16BITS(&bp[6]));
- bp += 8; len -= 8;
-
- TCHECK2(bp[0], 4);
- maddrlen = bp[1];
- addrlen = bp[2];
- ngroups = bp[3];
- bp += 4; len -= 4;
- while (ngroups--) {
+ return;
+ }
+
+ TCHECK2(bp[0], sizeof(struct in_addr));
+ if (vflag > 1)
+ (void)printf("\n");
+ (void)printf(" Upstream Nbr: %s", ipaddr_string(bp));
+ TCHECK2(bp[6], 2);
+ if (vflag > 1)
+ (void)printf("\n");
+ (void)printf(" Hold time: ");
+ relts_print(EXTRACT_16BITS(&bp[6]));
+ if (vflag < 2)
+ return;
+ bp += 8;
+ len -= 8;
+
TCHECK2(bp[0], 4);
- (void)printf("\n\tGroup: %s", ipaddr_string(bp));
- if (EXTRACT_32BITS(&bp[4]) != 0xffffffff)
- (void)printf("/%s", ipaddr_string(&bp[4]));
- TCHECK2(bp[8], 4);
- njoin = EXTRACT_16BITS(&bp[8]);
- nprune = EXTRACT_16BITS(&bp[10]);
- (void)printf(" joined: %d pruned: %d", njoin, nprune);
- bp += 12; len -= 12;
- for (njp = 0; njp < (njoin + nprune); njp++) {
- char *type;
-
- if (njp < njoin) {
- type = "Join ";
- } else {
- type = "Prune";
- }
- TCHECK2(bp[0], 6);
- (void)printf("\n\t%s %s%s%s%s/%d", type,
+ maddrlen = bp[1];
+ addrlen = bp[2];
+ ngroups = bp[3];
+ bp += 4;
+ len -= 4;
+ while (ngroups--) {
+ /*
+ * XXX - does the address have length "addrlen" and the
+ * mask length "maddrlen"?
+ */
+ TCHECK2(bp[0], sizeof(struct in_addr));
+ (void)printf("\n\tGroup: %s", ipaddr_string(bp));
+ TCHECK2(bp[4], sizeof(struct in_addr));
+ if (EXTRACT_32BITS(&bp[4]) != 0xffffffff)
+ (void)printf("/%s", ipaddr_string(&bp[4]));
+ TCHECK2(bp[8], 4);
+ njoin = EXTRACT_16BITS(&bp[8]);
+ nprune = EXTRACT_16BITS(&bp[10]);
+ (void)printf(" joined: %d pruned: %d", njoin, nprune);
+ bp += 12;
+ len -= 12;
+ for (njp = 0; njp < (njoin + nprune); njp++) {
+ const char *type;
+
+ if (njp < njoin)
+ type = "Join ";
+ else
+ type = "Prune";
+ TCHECK2(bp[0], 6);
+ (void)printf("\n\t%s %s%s%s%s/%d", type,
(bp[0] & 0x01) ? "Sparse " : "Dense ",
(bp[1] & 0x80) ? "WC " : "",
(bp[1] & 0x40) ? "RP " : "SPT ",
- ipaddr_string(&bp[2]), bp[1] & 0x3f);
- bp += 6; len -= 6;
+ ipaddr_string(&bp[2]), bp[1] & 0x3f);
+ bp += 6;
+ len -= 6;
+ }
}
- }
- return;
+ return;
trunc:
- (void)printf("[|pim]");
- return;
+ (void)printf("[|pim]");
+ return;
}
void
pimv1_print(register const u_char *bp, register u_int len)
{
- register const u_char *ep;
- register u_char type;
+ register const u_char *ep;
+ register u_char type;
- ep = (const u_char *)snapend;
- if (bp >= ep)
- return;
+ ep = (const u_char *)snapend;
+ if (bp >= ep)
+ return;
- type = bp[1];
+ TCHECK(bp[1]);
+ type = bp[1];
- switch (type) {
- case 0:
- (void)printf(" Query");
- if (TTEST(bp[8])) {
- switch (bp[8] >> 4) {
- case 0: (void)printf(" Dense-mode");
+ switch (type) {
+ case 0:
+ (void)printf(" Query");
+ if (TTEST(bp[8])) {
+ switch (bp[8] >> 4) {
+ case 0:
+ (void)printf(" Dense-mode");
break;
- case 1: (void)printf(" Sparse-mode");
+ case 1:
+ (void)printf(" Sparse-mode");
break;
- case 2: (void)printf(" Sparse-Dense-mode");
+ case 2:
+ (void)printf(" Sparse-Dense-mode");
break;
- default: (void)printf(" mode-%d", bp[8] >> 4);
+ default:
+ (void)printf(" mode-%d", bp[8] >> 4);
break;
+ }
}
- }
- if (vflag) {
- TCHECK2(bp[10],2);
- (void)printf(" (Hold-time ");
- relts_print(EXTRACT_16BITS(&bp[10]));
- (void)printf(")");
- }
- break;
-
- case 1:
- (void)printf(" Register");
- TCHECK2(bp[8], 20); /* ip header */
- (void)printf(" for %s > %s", ipaddr_string(&bp[20]),
- ipaddr_string(&bp[24]));
- break;
-
- case 2:
- (void)printf(" Register-Stop");
- TCHECK2(bp[12], 4);
- (void)printf(" for %s > %s", ipaddr_string(&bp[8]),
- ipaddr_string(&bp[12]));
- break;
-
- case 3:
- (void)printf(" Join/Prune");
- if (vflag) {
- pimv1_join_prune_print(&bp[8], len - 8);
- }
- break;
+ if (vflag) {
+ TCHECK2(bp[10],2);
+ (void)printf(" (Hold-time ");
+ relts_print(EXTRACT_16BITS(&bp[10]));
+ (void)printf(")");
+ }
+ break;
- case 4:
- (void)printf(" RP-reachable");
- if (vflag) {
- TCHECK2(bp[22], 2);
- (void)printf(" group %s",
+ case 1:
+ (void)printf(" Register");
+ TCHECK2(bp[8], 20); /* ip header */
+ (void)printf(" for %s > %s", ipaddr_string(&bp[20]),
+ ipaddr_string(&bp[24]));
+ break;
+ case 2:
+ (void)printf(" Register-Stop");
+ TCHECK2(bp[12], sizeof(struct in_addr));
+ (void)printf(" for %s > %s", ipaddr_string(&bp[8]),
+ ipaddr_string(&bp[12]));
+ break;
+ case 3:
+ (void)printf(" Join/Prune");
+ if (vflag)
+ pimv1_join_prune_print(&bp[8], len - 8);
+ break;
+ case 4:
+ (void)printf(" RP-reachable");
+ if (vflag) {
+ TCHECK2(bp[22], 2);
+ (void)printf(" group %s",
ipaddr_string(&bp[8]));
+ if (EXTRACT_32BITS(&bp[12]) != 0xffffffff)
+ (void)printf("/%s", ipaddr_string(&bp[12]));
+ (void)printf(" RP %s hold ", ipaddr_string(&bp[16]));
+ relts_print(EXTRACT_16BITS(&bp[22]));
+ }
+ break;
+ case 5:
+ (void)printf(" Assert");
+ TCHECK2(bp[16], sizeof(struct in_addr));
+ (void)printf(" for %s > %s", ipaddr_string(&bp[16]),
+ ipaddr_string(&bp[8]));
if (EXTRACT_32BITS(&bp[12]) != 0xffffffff)
(void)printf("/%s", ipaddr_string(&bp[12]));
- (void)printf(" RP %s hold ",
- ipaddr_string(&bp[16]));
- relts_print(EXTRACT_16BITS(&bp[22]));
- }
- break;
-
- case 5:
- (void)printf(" Assert");
- TCHECK2(bp[16], 4);
- (void)printf(" for %s > %s", ipaddr_string(&bp[16]),
- ipaddr_string(&bp[8]));
- if (EXTRACT_32BITS(&bp[12]) != 0xffffffff)
- (void)printf("/%s", ipaddr_string(&bp[12]));
- TCHECK2(bp[24], 4);
- (void)printf(" %s pref %d metric %d",
- (bp[20] & 0x80) ? "RP-tree" : "SPT",
+ TCHECK2(bp[24], 4);
+ (void)printf(" %s pref %d metric %d",
+ (bp[20] & 0x80) ? "RP-tree" : "SPT",
EXTRACT_32BITS(&bp[20]) & 0x7fffffff,
EXTRACT_32BITS(&bp[24]));
- break;
-
- case 6:
- (void)printf(" Graft");
- if (vflag) {
- pimv1_join_prune_print(&bp[8], len - 8);
- }
- break;
-
- case 7:
- (void)printf(" Graft-ACK");
- if (vflag) {
- pimv1_join_prune_print(&bp[8], len - 8);
+ break;
+ case 6:
+ (void)printf(" Graft");
+ if (vflag)
+ pimv1_join_prune_print(&bp[8], len - 8);
+ break;
+ case 7:
+ (void)printf(" Graft-ACK");
+ if (vflag)
+ pimv1_join_prune_print(&bp[8], len - 8);
+ break;
+ case 8:
+ (void)printf(" Mode");
+ break;
+ default:
+ (void)printf(" [type %d]", type);
+ break;
}
- break;
-
- case 8:
- (void)printf(" Mode");
- break;
-
- default:
- (void)printf(" [type %d]", type);
- break;
- }
- if ((bp[4] >> 4) != 1)
- (void)printf(" [v%d]", bp[4] >> 4);
- return;
+ if ((bp[4] >> 4) != 1)
+ (void)printf(" [v%d]", bp[4] >> 4);
+ return;
trunc:
- (void)printf("[|pim]");
- return;
+ (void)printf("[|pim]");
+ return;
}
/*
* auto-RP is a cisco protocol, documented at
- * ftp://ftpeng.cisco.com/ipmulticast/pim-autorp-spec01.txt
+ * ftp://ftpeng.cisco.com/ipmulticast/specs/pim-autorp-spec01.txt
+ *
+ * This implements version 1+, dated Sept 9, 1998.
*/
void
cisco_autorp_print(register const u_char *bp, register u_int len)
{
- int type;
- int numrps;
- int hold;
-
- TCHECK(bp[0]);
- (void)printf(" auto-rp ");
- type = bp[0];
- switch (type) {
- case 0x11:
- (void)printf("candidate-advert");
- break;
- case 0x12:
- (void)printf("mapping");
- break;
- default:
- (void)printf("type-0x%02x", type);
- break;
- }
-
- TCHECK(bp[1]);
- numrps = bp[1];
-
- TCHECK2(bp[2], 2);
- (void)printf(" Hold ");
- hold = EXTRACT_16BITS(&bp[2]);
- if (hold)
- relts_print(EXTRACT_16BITS(&bp[2]));
- else
- printf("FOREVER");
-
- /* Next 4 bytes are reserved. */
-
- bp += 8; len -= 8;
-
- /*XXX skip unless -v? */
-
- /*
- * Rest of packet:
- * numrps entries of the form:
- * 32 bits: RP
- * 6 bits: reserved
- * 2 bits: PIM version supported, bit 0 is "supports v1", 1 is "v2".
- * 8 bits: # of entries for this RP
- * each entry: 7 bits: reserved, 1 bit: negative,
- * 8 bits: mask 32 bits: source
- * lather, rinse, repeat.
- */
- while (numrps--) {
- int nentries;
- char s;
+ int type;
+ int numrps;
+ int hold;
- TCHECK2(bp[0], 4);
- (void)printf(" RP %s", ipaddr_string(bp));
- TCHECK(bp[4]);
- switch(bp[4] & 0x3) {
- case 0: printf(" PIMv?");
- break;
- case 1: printf(" PIMv1");
+ TCHECK(bp[0]);
+ (void)printf(" auto-rp ");
+ type = bp[0];
+ switch (type) {
+ case 0x11:
+ (void)printf("candidate-advert");
break;
- case 2: printf(" PIMv2");
+ case 0x12:
+ (void)printf("mapping");
break;
- case 3: printf(" PIMv1+2");
+ default:
+ (void)printf("type-0x%02x", type);
break;
}
- TCHECK(bp[5]);
- nentries = bp[5];
- bp += 6; len -= 6;
- s = ' ';
- for (; nentries; nentries--) {
- TCHECK2(bp[0], 6);
- (void)printf("%c%s%s/%d", s, bp[0] & 1 ? "!" : "",
- ipaddr_string(&bp[2]), bp[1]);
- s = ',';
- bp += 6; len -= 6;
+
+ TCHECK(bp[1]);
+ numrps = bp[1];
+
+ TCHECK2(bp[2], 2);
+ (void)printf(" Hold ");
+ hold = EXTRACT_16BITS(&bp[2]);
+ if (hold)
+ relts_print(EXTRACT_16BITS(&bp[2]));
+ else
+ printf("FOREVER");
+
+ /* Next 4 bytes are reserved. */
+
+ bp += 8; len -= 8;
+
+ /*XXX skip unless -v? */
+
+ /*
+ * Rest of packet:
+ * numrps entries of the form:
+ * 32 bits: RP
+ * 6 bits: reserved
+ * 2 bits: PIM version supported, bit 0 is "supports v1", 1 is "v2".
+ * 8 bits: # of entries for this RP
+ * each entry: 7 bits: reserved, 1 bit: negative,
+ * 8 bits: mask 32 bits: source
+ * lather, rinse, repeat.
+ */
+ while (numrps--) {
+ int nentries;
+ char s;
+
+ TCHECK2(bp[0], 4);
+ (void)printf(" RP %s", ipaddr_string(bp));
+ TCHECK(bp[4]);
+ switch (bp[4] & 0x3) {
+ case 0: printf(" PIMv?");
+ break;
+ case 1: printf(" PIMv1");
+ break;
+ case 2: printf(" PIMv2");
+ break;
+ case 3: printf(" PIMv1+2");
+ break;
+ }
+ if (bp[4] & 0xfc)
+ (void)printf(" [rsvd=0x%02x]", bp[4] & 0xfc);
+ TCHECK(bp[5]);
+ nentries = bp[5];
+ bp += 6; len -= 6;
+ s = ' ';
+ for (; nentries; nentries--) {
+ TCHECK2(bp[0], 6);
+ (void)printf("%c%s%s/%d", s, bp[0] & 1 ? "!" : "",
+ ipaddr_string(&bp[2]), bp[1]);
+ if (bp[0] & 0x02) {
+ (void)printf(" bidir");
+ }
+ if (bp[0] & 0xfc) {
+ (void)printf("[rsvd=0x%02x]", bp[0] & 0xfc);
+ }
+ s = ',';
+ bp += 6; len -= 6;
+ }
}
- }
- return;
+ return;
trunc:
- (void)printf("[|autorp]");
- return;
+ (void)printf("[|autorp]");
+ return;
}
void
-pim_print(register const u_char *bp, register u_int len)
+pim_print(register const u_char *bp, register u_int len, u_int cksum)
{
register const u_char *ep;
register struct pim *pim = (struct pim *)bp;
TCHECK(pim->pim_rsv);
#endif
- switch(pim->pim_ver) {
- case 2: /* avoid hardcoding? */
- (void)printf("v2");
- pimv2_print(bp, len);
- break;
- default:
- (void)printf("v%d", pim->pim_ver);
+ switch (PIM_VER(pim->pim_typever)) {
+ case 2:
+ if (!vflag) {
+ printf("PIMv%u, %s, length %u",
+ PIM_VER(pim->pim_typever),
+ tok2str(pimv2_type_values,"Unknown Type",PIM_TYPE(pim->pim_typever)),
+ len);
+ return;
+ } else {
+ printf("PIMv%u, length %u\n\t%s",
+ PIM_VER(pim->pim_typever),
+ len,
+ tok2str(pimv2_type_values,"Unknown Type",PIM_TYPE(pim->pim_typever)));
+ pimv2_print(bp, len, cksum);
+ }
+ break;
+ default:
+ printf("PIMv%u, length %u",
+ PIM_VER(pim->pim_typever),
+ len);
break;
}
return;
enum pimv2_addrtype {
pimv2_unicast, pimv2_group, pimv2_source
};
-#if 0
-static char *addrtypestr[] = {
- "unicast", "group", "source"
-};
-#endif
/* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
pimv2_addr_print(const u_char *bp, enum pimv2_addrtype at, int silent)
{
int af;
- char *afstr;
int len, hdrlen;
TCHECK(bp[0]);
if (pimv2_addr_len == 0) {
TCHECK(bp[1]);
switch (bp[0]) {
- case 1:
+ case 1:
af = AF_INET;
- afstr = "IPv4";
- len = 4;
+ len = sizeof(struct in_addr);
break;
#ifdef INET6
- case 2:
+ case 2:
af = AF_INET6;
- afstr = "IPv6";
- len = 16;
+ len = sizeof(struct in6_addr);
break;
#endif
- default:
+ default:
return -1;
}
if (bp[1] != 0)
hdrlen = 2;
} else {
switch (pimv2_addr_len) {
- case 4:
+ case sizeof(struct in_addr):
af = AF_INET;
- afstr = "IPv4";
break;
#ifdef INET6
- case 16:
+ case sizeof(struct in6_addr):
af = AF_INET6;
- afstr = "IPv6";
break;
#endif
- default:
+ default:
return -1;
break;
}
bp += hdrlen;
switch (at) {
- case pimv2_unicast:
+ case pimv2_unicast:
TCHECK2(bp[0], len);
if (af == AF_INET) {
if (!silent)
}
#endif
return hdrlen + len;
- case pimv2_group:
- case pimv2_source:
+ case pimv2_group:
+ case pimv2_source:
TCHECK2(bp[0], len + 2);
if (af == AF_INET) {
if (!silent) {
}
static void
-pimv2_print(register const u_char *bp, register u_int len)
+pimv2_print(register const u_char *bp, register u_int len, u_int cksum)
{
register const u_char *ep;
register struct pim *pim = (struct pim *)bp;
ep = (const u_char *)snapend;
if (bp >= ep)
return;
+ if (ep > bp + len)
+ ep = bp + len;
TCHECK(pim->pim_rsv);
pimv2_addr_len = pim->pim_rsv;
if (pimv2_addr_len != 0)
- (void)printf("[RFC2117-encoding] ");
+ (void)printf(", RFC2117-encoding");
- switch (pim->pim_type) {
- case 0:
+ printf(", cksum 0x%04x ", EXTRACT_16BITS(&pim->pim_cksum));
+ if (EXTRACT_16BITS(&pim->pim_cksum) == 0) {
+ printf("(unverified)");
+ } else {
+ printf("(%scorrect)", TTEST2(bp[0], len) && cksum ? "in" : "" );
+ }
+
+ switch (PIM_TYPE(pim->pim_typever)) {
+ case PIMV2_TYPE_HELLO:
{
u_int16_t otype, olen;
- (void)printf(" Hello");
bp += 4;
while (bp < ep) {
TCHECK2(bp[0], 4);
otype = EXTRACT_16BITS(&bp[0]);
olen = EXTRACT_16BITS(&bp[2]);
TCHECK2(bp[0], 4 + olen);
+
+ printf("\n\t %s Option (%u), length %u, Value: ",
+ tok2str( pimv2_hello_option_values,"Unknown",otype),
+ otype,
+ olen);
+ bp += 4;
+
switch (otype) {
- case 1: /* Hold time */
- (void)printf(" (Hold-time ");
- relts_print(EXTRACT_16BITS(&bp[4]));
- (void)printf(")");
+ case PIMV2_HELLO_OPTION_HOLDTIME:
+ relts_print(EXTRACT_16BITS(bp));
+ break;
+
+ case PIMV2_HELLO_OPTION_LANPRUNEDELAY:
+ if (olen != 4) {
+ (void)printf("ERROR: Option Length != 4 Bytes (%u)", olen);
+ } else {
+ char t_bit;
+ u_int16_t lan_delay, override_interval;
+ lan_delay = EXTRACT_16BITS(bp);
+ override_interval = EXTRACT_16BITS(bp+2);
+ t_bit = (lan_delay & 0x8000)? 1 : 0;
+ lan_delay &= ~0x8000;
+ (void)printf("\n\t T-bit=%d, LAN delay %dms, Override interval %dms",
+ t_bit, lan_delay, override_interval);
+ }
break;
- /* XXX
- * draft-ietf-idmr-pimv2-dr-priority-00.txt
- * says that DR-Priority is option 19.
- * draft-ietf-pim-v2-sm-00.txt says it's 18.
- */
- case 18: /* DR-Priority */
- (void)printf(" (DR-Priority: %d)", EXTRACT_32BITS(&bp[4]));
+ case PIMV2_HELLO_OPTION_DR_PRIORITY_OLD:
+ case PIMV2_HELLO_OPTION_DR_PRIORITY:
+ switch (olen) {
+ case 0:
+ printf("Bi-Directional Capability (Old)");
+ break;
+ case 4:
+ printf("%u", EXTRACT_32BITS(bp));
+ break;
+ default:
+ printf("ERROR: Option Length != 4 Bytes (%u)", olen);
+ break;
+ }
+ break;
+
+ case PIMV2_HELLO_OPTION_GENID:
+ (void)printf("0x%08x", EXTRACT_32BITS(bp));
break;
- case 19: /* Bidir-Capable */
- if (olen == 4)
- (void)printf(" (OLD-DR-Priority: %d)", EXTRACT_32BITS(&bp[4]));
- else
- (void)printf(" (bidir-capable)");
+ case PIMV2_HELLO_OPTION_REFRESH_CAP:
+ (void)printf("v%d", *bp);
+ if (*(bp+1) != 0) {
+ (void)printf(", interval ");
+ relts_print(*(bp+1));
+ }
+ if (EXTRACT_16BITS(bp+2) != 0) {
+ (void)printf(" ?0x%04x?", EXTRACT_16BITS(bp+2));
+ }
break;
- case 20:
- (void)printf(" (Genid: 0x%08x)", EXTRACT_32BITS(&bp[4]));
+ case PIMV2_HELLO_OPTION_BIDIR_CAP:
break;
- case 21:
- (void)printf(" (State Refresh Capable");
- if (EXTRACT_32BITS(&bp[4]) != 1) {
- (void)printf(" ?0x%x?", EXTRACT_32BITS(&bp[4]));
+ case PIMV2_HELLO_OPTION_ADDRESS_LIST_OLD:
+ case PIMV2_HELLO_OPTION_ADDRESS_LIST:
+ if (vflag > 1) {
+ const u_char *ptr = bp;
+ while (ptr < (bp+olen)) {
+ int advance;
+
+ printf("\n\t ");
+ advance = pimv2_addr_print(ptr, pimv2_unicast, 0);
+ if (advance < 0) {
+ printf("...");
+ break;
+ }
+ ptr += advance;
+ }
}
- (void)printf(")");
break;
-
default:
- if (vflag)
- (void)printf(" [Hello option %d]", otype);
+ if (vflag <= 1)
+ print_unknown_data(bp,"\n\t ",olen);
+ break;
}
- bp += 4 + olen;
+ /* do we want to see an additionally hexdump ? */
+ if (vflag> 1)
+ print_unknown_data(bp,"\n\t ",olen);
+ bp += olen;
}
break;
}
- case 1:
- {
+ case PIMV2_TYPE_REGISTER:
+ {
struct ip *ip;
- (void)printf(" Register");
- if (vflag && bp + 8 <= ep) {
- (void)printf(" %s%s", bp[4] & 0x80 ? "B" : "",
- bp[4] & 0x40 ? "N" : "");
- }
- bp += 8; len -= 8;
+ if (!TTEST2(*(bp+4), PIMV2_REGISTER_FLAG_LEN))
+ goto trunc;
+
+ printf(", Flags [ %s ]\n\t",
+ tok2str(pimv2_register_flag_values,
+ "none",
+ EXTRACT_32BITS(bp+4)));
+ bp += 8; len -= 8;
/* encapsulated multicast packet */
- if (bp >= ep)
- break;
ip = (struct ip *)bp;
- switch(ip->ip_v) {
- case 4: /* IPv4 */
- printf(" ");
- ip_print(bp, len);
+ switch (IP_V(ip)) {
+ case 0: /* Null header */
+ (void)printf("IP-Null-header %s > %s",
+ ipaddr_string(&ip->ip_src),
+ ipaddr_string(&ip->ip_dst));
+ break;
+
+ case 4: /* IPv4 */
+ ip_print(gndo, bp, len);
break;
#ifdef INET6
- case 6: /* IPv6 */
- printf(" ");
- ip6_print(bp, len);
+ case 6: /* IPv6 */
+ ip6_print(gndo, bp, len);
break;
#endif
- default:
- (void)printf(" IP ver %d", ip->ip_v);
- break;
+ default:
+ (void)printf("IP ver %d", IP_V(ip));
+ break;
}
break;
- }
+ }
- case 2:
- (void)printf(" Register-Stop");
+ case PIMV2_TYPE_REGISTER_STOP:
bp += 4; len -= 4;
if (bp >= ep)
break;
bp += advance; len -= advance;
break;
- case 3:
- case 6:
- case 7:
+ case PIMV2_TYPE_JOIN_PRUNE:
+ case PIMV2_TYPE_GRAFT:
+ case PIMV2_TYPE_GRAFT_ACK:
+
+
+ /*
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |PIM Ver| Type | Addr length | Checksum |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Unicast-Upstream Neighbor Address |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Reserved | Num groups | Holdtime |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Multicast Group Address-1 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Number of Joined Sources | Number of Pruned Sources |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Joined Source Address-1 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | . |
+ * | . |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Joined Source Address-n |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Pruned Source Address-1 |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | . |
+ * | . |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Pruned Source Address-n |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | . |
+ * | . |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Encoded-Multicast Group Address-n |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
{
u_int8_t ngroup;
u_int16_t holdtime;
u_int16_t nprune;
int i, j;
- switch (pim->pim_type) {
- case 3:
- (void)printf(" Join/Prune");
- break;
- case 6:
- (void)printf(" Graft");
- break;
- case 7:
- (void)printf(" Graft-ACK");
- break;
- }
bp += 4; len -= 4;
- if (pim->pim_type != 7) { /*not for Graft-ACK*/
+ if (PIM_TYPE(pim->pim_typever) != 7) { /*not for Graft-ACK*/
if (bp >= ep)
break;
- (void)printf(" upstream-neighbor=");
+ (void)printf(", upstream-neighbor: ");
if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
(void)printf("...");
break;
break;
ngroup = bp[1];
holdtime = EXTRACT_16BITS(&bp[2]);
- (void)printf(" groups=%u", ngroup);
- if (pim->pim_type != 7) { /*not for Graft-ACK*/
- (void)printf(" holdtime=");
+ (void)printf("\n\t %u group(s)", ngroup);
+ if (PIM_TYPE(pim->pim_typever) != 7) { /*not for Graft-ACK*/
+ (void)printf(", holdtime: ");
if (holdtime == 0xffff)
- (void)printf("infty");
+ (void)printf("infinite");
else
relts_print(holdtime);
}
for (i = 0; i < ngroup; i++) {
if (bp >= ep)
goto jp_done;
- (void)printf(" (group%d: ", i);
+ (void)printf("\n\t group #%u: ", i+1);
if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
(void)printf("...)");
goto jp_done;
}
njoin = EXTRACT_16BITS(&bp[0]);
nprune = EXTRACT_16BITS(&bp[2]);
- (void)printf(" join=%u", njoin);
+ (void)printf(", joined sources: %u, pruned sources: %u", njoin,nprune);
bp += 4; len -= 4;
for (j = 0; j < njoin; j++) {
- (void)printf(" ");
+ (void)printf("\n\t joined source #%u: ",j+1);
if ((advance = pimv2_addr_print(bp, pimv2_source, 0)) < 0) {
(void)printf("...)");
goto jp_done;
}
bp += advance; len -= advance;
}
- (void)printf(" prune=%u", nprune);
for (j = 0; j < nprune; j++) {
- (void)printf(" ");
+ (void)printf("\n\t pruned source #%u: ",j+1);
if ((advance = pimv2_addr_print(bp, pimv2_source, 0)) < 0) {
(void)printf("...)");
goto jp_done;
}
bp += advance; len -= advance;
}
- (void)printf(")");
}
jp_done:
break;
}
- case 4:
- {
+ case PIMV2_TYPE_BOOTSTRAP:
+ {
int i, j, frpcnt;
-
- (void)printf(" Bootstrap");
bp += 4;
/* Fragment Tag, Hash Mask len, and BSR-priority */
(void)printf("...)");
goto bs_done;
}
- (void)printf(" RPcnt=%d", frpcnt = bp[0]);
+ (void)printf(" RPcnt=%d", bp[0]);
if (bp + 1 >= ep) {
(void)printf("...)");
goto bs_done;
}
- (void)printf(" FRPcnt=%d", bp[1]);
+ (void)printf(" FRPcnt=%d", frpcnt = bp[1]);
bp += 4;
for (j = 0; j < frpcnt && bp < ep; j++) {
}
bs_done:
break;
- }
- case 5:
- (void)printf(" Assert");
+ }
+ case PIMV2_TYPE_ASSERT:
bp += 4; len -= 4;
if (bp >= ep)
break;
(void)printf(" metric=%u", EXTRACT_32BITS(&bp[4]));
break;
- case 8:
- {
+ case PIMV2_TYPE_CANDIDATE_RP:
+ {
int i, pfxcnt;
-
- (void)printf(" Candidate-RP-Advertisement");
bp += 4;
/* Prefix-Cnt, Priority, and Holdtime */
bp += advance;
}
break;
- }
+ }
- case 9:
- (void)printf(" Prune-Refresh");
+ case PIMV2_TYPE_PRUNE_REFRESH:
(void)printf(" src=");
if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
(void)printf("...");
default:
- (void)printf(" [type %d]", pim->pim_type);
+ (void)printf(" [type %d]", PIM_TYPE(pim->pim_typever));
break;
}
trunc:
(void)printf("[|pim]");
}
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 8
+ * End:
+ */
projects / tcpdump / blobdiff