* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
- * Original code by Hannes Gredler (hannes@juniper.net)
+ * Original code by Hannes Gredler (hannes@gredler.at)
*/
+/* \summary: Resource ReSerVation Protocol (RSVP) printer */
+
+/* specification: RFC 2205 */
+
#ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
#endif
-#include <tcpdump-stdinc.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include "netdissect-stdinc.h"
-#include "interface.h"
+#define ND_LONGJMP_FROM_TCHECK
+#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
#include "ethertype.h"
#include "af.h"
#include "signature.h"
+
/*
* RFC 2205 common header
*
*/
struct rsvp_common_header {
- u_int8_t version_flags;
- u_int8_t msg_type;
- u_int8_t checksum[2];
- u_int8_t ttl;
- u_int8_t reserved;
- u_int8_t length[2];
+ nd_uint8_t version_flags;
+ nd_uint8_t msg_type;
+ nd_uint16_t checksum;
+ nd_uint8_t ttl;
+ nd_byte reserved[1];
+ nd_uint16_t length;
};
/*
*/
struct rsvp_object_header {
- u_int8_t length[2];
- u_int8_t class_num;
- u_int8_t ctype;
+ nd_uint16_t length;
+ nd_uint8_t class_num;
+ nd_uint8_t ctype;
};
#define RSVP_VERSION 1
#define RSVP_MSGTYPE_PATHTEAR 5
#define RSVP_MSGTYPE_RESVTEAR 6
#define RSVP_MSGTYPE_RESVCONF 7
-#define RSVP_MSGTYPE_AGGREGATE 12
+#define RSVP_MSGTYPE_BUNDLE 12
#define RSVP_MSGTYPE_ACK 13
#define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */
#define RSVP_MSGTYPE_SREFRESH 15
{ RSVP_MSGTYPE_PATHTEAR, "PathTear" },
{ RSVP_MSGTYPE_RESVTEAR, "ResvTear" },
{ RSVP_MSGTYPE_RESVCONF, "ResvConf" },
- { RSVP_MSGTYPE_AGGREGATE, "Aggregate" },
+ { RSVP_MSGTYPE_BUNDLE, "Bundle" },
{ RSVP_MSGTYPE_ACK, "Acknowledgement" },
{ RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" },
{ RSVP_MSGTYPE_SREFRESH, "Refresh" },
{ 0, NULL}
};
+static const struct tok rsvp_obj_capability_flag_values[] = {
+ { 0x0004, "RecoveryPath Transmit Enabled" },
+ { 0x0002, "RecoveryPath Desired" },
+ { 0x0001, "RecoveryPath Srefresh Capable" },
+ { 0, NULL}
+};
+
#define RSVP_OBJ_SESSION 1 /* rfc2205 */
#define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */
#define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */
#define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */
#define RSVP_OBJ_PROTECTION 37 /* rfc3473 */
#define RSVP_OBJ_S2L 50 /* rfc4875 */
-#define RSVP_OBJ_DETOUR 63 /* draft-ietf-mpls-rsvp-lsp-fastreroute-07 */
+#define RSVP_OBJ_DETOUR 63 /* rfc4090 */
#define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */
#define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */
#define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */
#define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */
#define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */
+#define RSVP_OBJ_CAPABILITY 134 /* rfc5063 */
#define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */
#define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */
#define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */
-#define RSVP_OBJ_FASTREROUTE 205 /* draft-ietf-mpls-rsvp-lsp-fastreroute-07 */
+#define RSVP_OBJ_FASTREROUTE 205 /* rfc4090 */
#define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
#define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */
#define RSVP_OBJ_CALL_ID 230 /* rfc3474 */
{ RSVP_OBJ_CALL_ID, "Call-ID" },
{ RSVP_OBJ_CALL_OPS, "Call Capability" },
{ RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
+ { RSVP_OBJ_CAPABILITY, "Capability" },
{ RSVP_OBJ_NOTIFY_REQ, "Notify Request" },
{ RSVP_OBJ_PROTECTION, "Protection" },
{ RSVP_OBJ_ADMIN_STATUS, "Administrative Status" },
{ 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
{ 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
{ 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
+ { 256*RSVP_OBJ_CAPABILITY+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
{ 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/
{ 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */
{ 0, NULL}
};
+/*
+ * XXX - this assumes a 16-byte digest, which is true for HMAC-MD5, but
+ * isn't necessarily the case for other hash algorithms.
+ *
+ * Unless I've missed something, there's nothing in RFC 2747 to indicate
+ * the hash algorithm being used, so it's presumably something set up
+ * out-of-band, or negotiated by other RSVP objects.
+ */
struct rsvp_obj_integrity_t {
- u_int8_t flags;
- u_int8_t res;
- u_int8_t key_id[6];
- u_int8_t sequence[8];
- u_int8_t digest[16];
+ uint8_t flags;
+ uint8_t res;
+ uint8_t key_id[6];
+ uint8_t sequence[8];
+ uint8_t digest[16];
};
static const struct tok rsvp_obj_integrity_flag_values[] = {
};
struct rsvp_obj_frr_t {
- u_int8_t setup_prio;
- u_int8_t hold_prio;
- u_int8_t hop_limit;
- u_int8_t flags;
- u_int8_t bandwidth[4];
- u_int8_t include_any[4];
- u_int8_t exclude_any[4];
- u_int8_t include_all[4];
+ uint8_t setup_prio;
+ uint8_t hold_prio;
+ uint8_t hop_limit;
+ uint8_t flags;
+ uint8_t bandwidth[4];
+ uint8_t include_any[4];
+ uint8_t exclude_any[4];
+ uint8_t include_all[4];
};
#define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
#define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
+#define RSVP_OBJ_CAPABILITY_FLAGS_MASK 0x7U
+
#define RSVP_OBJ_XRO_RES 0
#define RSVP_OBJ_XRO_IPV4 1
#define RSVP_OBJ_XRO_IPV6 2
{ 0, NULL}
};
-/* draft-ietf-mpls-rsvp-lsp-fastreroute-07.txt */
+/* RFC4090 */
static const struct tok rsvp_obj_rro_flag_values[] = {
{ 0x01, "Local protection available" },
{ 0x02, "Local protection in use" },
{ 0, NULL}
};
-static int rsvp_intserv_print(const u_char *, u_short);
-
/*
* this is a dissector for all the intserv defined
* specs as defined per rfc2215
* it is called from various rsvp objects;
* returns the amount of bytes being processed
*/
-static int
-rsvp_intserv_print(const u_char *tptr, u_short obj_tlen) {
-
- int parameter_id,parameter_length;
+static u_int
+rsvp_intserv_print(netdissect_options *ndo,
+ const u_char *tptr, u_int obj_tlen)
+{
+ u_int parameter_id,parameter_length;
union {
float f;
- u_int32_t i;
+ uint32_t i;
} bw;
- if (obj_tlen < 4)
- return 0;
- parameter_id = *(tptr);
- parameter_length = EXTRACT_16BITS(tptr+2)<<2; /* convert wordcount to bytecount */
+ ND_ICHECK_U(obj_tlen, <, 4);
+ parameter_id = GET_U_1(tptr);
+ parameter_length = GET_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */
- printf("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
+ ND_PRINT("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
parameter_id,
parameter_length,
- *(tptr+1));
+ GET_U_1(tptr + 1));
- if (obj_tlen < parameter_length+4)
- return 0;
+ ND_ICHECK_U(obj_tlen, <, parameter_length + 4);
switch(parameter_id) { /* parameter_id */
case 4:
* | IS hop cnt (32-bit unsigned integer) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
- if (parameter_length == 4)
- printf("\n\t\tIS hop count: %u", EXTRACT_32BITS(tptr+4));
+ if (parameter_length == 4) {
+ ND_PRINT("\n\t\tIS hop count: %u", GET_BE_U_4(tptr + 4));
+ }
break;
case 6:
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
if (parameter_length == 4) {
- bw.i = EXTRACT_32BITS(tptr+4);
- printf("\n\t\tPath b/w estimate: %.10g Mbps", bw.f/125000);
+ bw.i = GET_BE_U_4(tptr + 4);
+ ND_PRINT("\n\t\tPath b/w estimate: %.10g Mbps", bw.f / 125000);
}
break;
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
if (parameter_length == 4) {
- printf("\n\t\tMinimum path latency: ");
- if (EXTRACT_32BITS(tptr+4) == 0xffffffff)
- printf("don't care");
+ ND_PRINT("\n\t\tMinimum path latency: ");
+ if (GET_BE_U_4(tptr + 4) == 0xffffffff)
+ ND_PRINT("don't care");
else
- printf("%u", EXTRACT_32BITS(tptr+4));
+ ND_PRINT("%u", GET_BE_U_4(tptr + 4));
}
break;
* | Composed MTU (32-bit unsigned integer) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
- if (parameter_length == 4)
- printf("\n\t\tComposed MTU: %u bytes", EXTRACT_32BITS(tptr+4));
+ if (parameter_length == 4) {
+ ND_PRINT("\n\t\tComposed MTU: %u bytes", GET_BE_U_4(tptr + 4));
+ }
break;
case 127:
/*
*/
if (parameter_length == 20) {
- bw.i = EXTRACT_32BITS(tptr+4);
- printf("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f/125000);
- bw.i = EXTRACT_32BITS(tptr+8);
- printf("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
- bw.i = EXTRACT_32BITS(tptr+12);
- printf("\n\t\tPeak Data Rate: %.10g Mbps", bw.f/125000);
- printf("\n\t\tMinimum Policed Unit: %u bytes", EXTRACT_32BITS(tptr+16));
- printf("\n\t\tMaximum Packet Size: %u bytes", EXTRACT_32BITS(tptr+20));
+ bw.i = GET_BE_U_4(tptr + 4);
+ ND_PRINT("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f / 125000);
+ bw.i = GET_BE_U_4(tptr + 8);
+ ND_PRINT("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
+ bw.i = GET_BE_U_4(tptr + 12);
+ ND_PRINT("\n\t\tPeak Data Rate: %.10g Mbps", bw.f / 125000);
+ ND_PRINT("\n\t\tMinimum Policed Unit: %u bytes",
+ GET_BE_U_4(tptr + 16));
+ ND_PRINT("\n\t\tMaximum Packet Size: %u bytes",
+ GET_BE_U_4(tptr + 20));
}
break;
*/
if (parameter_length == 8) {
- bw.i = EXTRACT_32BITS(tptr+4);
- printf("\n\t\tRate: %.10g Mbps", bw.f/125000);
- printf("\n\t\tSlack Term: %u", EXTRACT_32BITS(tptr+8));
+ bw.i = GET_BE_U_4(tptr + 4);
+ ND_PRINT("\n\t\tRate: %.10g Mbps", bw.f / 125000);
+ ND_PRINT("\n\t\tSlack Term: %u", GET_BE_U_4(tptr + 8));
}
break;
case 134:
case 135:
case 136:
- if (parameter_length == 4)
- printf("\n\t\tValue: %u", EXTRACT_32BITS(tptr+4));
+ if (parameter_length == 4) {
+ ND_PRINT("\n\t\tValue: %u", GET_BE_U_4(tptr + 4));
+ }
break;
default:
- if (vflag <= 1)
- print_unknown_data(gndo,tptr+4,"\n\t\t",parameter_length);
+ if (ndo->ndo_vflag <= 1)
+ print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length);
}
return (parameter_length+4); /* header length 4 bytes */
+
+invalid:
+ nd_print_invalid(ndo);
+ return 0;
}
-static int
-rsvp_obj_print (const u_char *pptr
-#ifndef HAVE_LIBCRYPTO
-_U_
-#endif
-, u_int plen
-#ifndef HAVE_LIBCRYPTO
-_U_
-#endif
-, const u_char *tptr,
- const char *ident, u_int tlen) {
+/*
+ * Clear checksum prior to signature verification.
+ */
+static void
+rsvp_clear_checksum(void *header)
+{
+ struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header;
+
+ rsvp_com_header->checksum[0] = 0;
+ rsvp_com_header->checksum[1] = 0;
+}
+static int
+rsvp_obj_print(netdissect_options *ndo,
+ const u_char *pptr, u_int plen, const u_char *tptr,
+ const char *indent, u_int tlen,
+ const struct rsvp_common_header *rsvp_com_header)
+{
const struct rsvp_object_header *rsvp_obj_header;
const u_char *obj_tptr;
union {
const struct rsvp_obj_frr_t *rsvp_obj_frr;
} obj_ptr;
- u_short rsvp_obj_len,rsvp_obj_ctype,obj_tlen,intserv_serv_tlen;
- int hexdump,processed,padbytes,error_code,error_value,i,sigcheck;
+ u_short rsvp_obj_len,rsvp_obj_ctype,rsvp_obj_class_num;
+ u_int obj_tlen,intserv_serv_tlen;
+ int hexdump;
+ u_int processed,padbytes,error_code,error_value,i,sigcheck;
union {
float f;
- u_int32_t i;
+ uint32_t i;
} bw;
- u_int8_t namelen;
+ u_int namelen;
u_int action, subchannel;
while(tlen>=sizeof(struct rsvp_object_header)) {
- /* did we capture enough for fully decoding the object header ? */
- if (!TTEST2(*tptr, sizeof(struct rsvp_object_header)))
- goto trunc;
-
rsvp_obj_header = (const struct rsvp_object_header *)tptr;
- rsvp_obj_len=EXTRACT_16BITS(rsvp_obj_header->length);
- rsvp_obj_ctype=rsvp_obj_header->ctype;
+ rsvp_obj_len=GET_BE_U_2(rsvp_obj_header->length);
+ rsvp_obj_ctype=GET_U_1(rsvp_obj_header->ctype);
if(rsvp_obj_len % 4) {
- printf("%sERROR: object header size %u not a multiple of 4", ident, rsvp_obj_len);
+ ND_PRINT("%sERROR: object header size %u not a multiple of 4", indent, rsvp_obj_len);
return -1;
}
if(rsvp_obj_len < sizeof(struct rsvp_object_header)) {
- printf("%sERROR: object header too short %u < %lu", ident, rsvp_obj_len,
- (unsigned long)sizeof(const struct rsvp_object_header));
+ ND_PRINT("%sERROR: object header too short %u < %zu", indent, rsvp_obj_len,
+ sizeof(struct rsvp_object_header));
return -1;
}
- printf("%s%s Object (%u) Flags: [%s",
- ident,
+ rsvp_obj_class_num = GET_U_1(rsvp_obj_header->class_num);
+ ND_PRINT("%s%s Object (%u) Flags: [%s",
+ indent,
tok2str(rsvp_obj_values,
"Unknown",
- rsvp_obj_header->class_num),
- rsvp_obj_header->class_num,
- ((rsvp_obj_header->class_num)&0x80) ? "ignore" : "reject");
-
- if (rsvp_obj_header->class_num > 128)
- printf(" %s",
- ((rsvp_obj_header->class_num)&0x40) ? "and forward" : "silently");
-
- printf(" if unknown], Class-Type: %s (%u), length: %u",
+ rsvp_obj_class_num),
+ rsvp_obj_class_num,
+ (rsvp_obj_class_num & 0x80) ?
+ ((rsvp_obj_class_num & 0x40) ? "ignore and forward" :
+ "ignore silently") :
+ "reject");
+
+ ND_PRINT(" if unknown], Class-Type: %s (%u), length: %u",
tok2str(rsvp_ctype_values,
"Unknown",
- ((rsvp_obj_header->class_num)<<8)+rsvp_obj_ctype),
+ (rsvp_obj_class_num<<8)+rsvp_obj_ctype),
rsvp_obj_ctype,
rsvp_obj_len);
if(tlen < rsvp_obj_len) {
- printf("%sERROR: object goes past end of objects TLV", ident);
+ ND_PRINT("%sERROR: object goes past end of objects TLV", indent);
return -1;
}
obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
/* did we capture enough for fully decoding the object ? */
- if (!TTEST2(*tptr, rsvp_obj_len))
- return -1;
+ ND_TCHECK_LEN(tptr, rsvp_obj_len);
hexdump=FALSE;
- switch(rsvp_obj_header->class_num) {
+ switch(rsvp_obj_class_num) {
case RSVP_OBJ_SESSION:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
- return -1;
- printf("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
- ident,
- ipaddr_string(obj_tptr),
- *(obj_tptr+sizeof(struct in_addr)));
- printf("%s Flags: [0x%02x], DestPort %u",
- ident,
- *(obj_tptr+5),
- EXTRACT_16BITS(obj_tptr+6));
+ goto obj_tooshort;
+ ND_PRINT("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_U_1(obj_tptr + sizeof(nd_ipv4)));
+ ND_PRINT("%s Flags: [0x%02x], DestPort %u",
+ indent,
+ GET_U_1((obj_tptr + 5)),
+ GET_BE_U_2(obj_tptr + 6));
obj_tlen-=8;
obj_tptr+=8;
break;
-#ifdef INET6
case RSVP_CTYPE_IPV6:
if (obj_tlen < 20)
- return -1;
- printf("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
- ident,
- ip6addr_string(obj_tptr),
- *(obj_tptr+sizeof(struct in6_addr)));
- printf("%s Flags: [0x%02x], DestPort %u",
- ident,
- *(obj_tptr+sizeof(struct in6_addr)+1),
- EXTRACT_16BITS(obj_tptr+sizeof(struct in6_addr)+2));
+ goto obj_tooshort;
+ ND_PRINT("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr),
+ GET_U_1(obj_tptr + sizeof(nd_ipv6)));
+ ND_PRINT("%s Flags: [0x%02x], DestPort %u",
+ indent,
+ GET_U_1((obj_tptr + sizeof(nd_ipv6) + 1)),
+ GET_BE_U_2(obj_tptr + sizeof(nd_ipv6) + 2));
obj_tlen-=20;
obj_tptr+=20;
break;
case RSVP_CTYPE_TUNNEL_IPV6:
if (obj_tlen < 36)
- return -1;
- printf("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
- ident,
- ip6addr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+18),
- ip6addr_string(obj_tptr+20));
+ goto obj_tooshort;
+ ND_PRINT("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 18),
+ GET_IP6ADDR_STRING(obj_tptr + 20));
obj_tlen-=36;
obj_tptr+=36;
break;
case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */
if (obj_tlen < 26)
- return -1;
- printf("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
- ident,
- EXTRACT_32BITS(obj_tptr),
- EXTRACT_16BITS(obj_tptr+6),
- ip6addr_string(obj_tptr+8));
+ goto obj_tooshort;
+ ND_PRINT("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
+ indent,
+ GET_BE_U_4(obj_tptr),
+ GET_BE_U_2(obj_tptr + 6),
+ GET_IP6ADDR_STRING(obj_tptr + 8));
obj_tlen-=26;
obj_tptr+=26;
break;
-#endif
case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */
if (obj_tlen < 12)
- return -1;
- printf("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+6),
- ipaddr_string(obj_tptr+8));
+ goto obj_tooshort;
+ ND_PRINT("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 6),
+ GET_IPADDR_STRING(obj_tptr + 8));
obj_tlen-=12;
obj_tptr+=12;
break;
case RSVP_CTYPE_TUNNEL_IPV4:
case RSVP_CTYPE_UNI_IPV4:
if (obj_tlen < 12)
- return -1;
- printf("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+6),
- ipaddr_string(obj_tptr+8));
+ goto obj_tooshort;
+ ND_PRINT("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 6),
+ GET_IPADDR_STRING(obj_tptr + 8));
obj_tlen-=12;
obj_tptr+=12;
break;
case RSVP_OBJ_CONFIRM:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
- if (obj_tlen < sizeof(struct in_addr))
- return -1;
- printf("%s IPv4 Receiver Address: %s",
- ident,
- ipaddr_string(obj_tptr));
- obj_tlen-=sizeof(struct in_addr);
- obj_tptr+=sizeof(struct in_addr);
+ if (obj_tlen < sizeof(nd_ipv4))
+ goto obj_tooshort;
+ ND_PRINT("%s IPv4 Receiver Address: %s",
+ indent,
+ GET_IPADDR_STRING(obj_tptr));
+ obj_tlen-=sizeof(nd_ipv4);
+ obj_tptr+=sizeof(nd_ipv4);
break;
-#ifdef INET6
case RSVP_CTYPE_IPV6:
- if (obj_tlen < sizeof(struct in6_addr))
- return -1;
- printf("%s IPv6 Receiver Address: %s",
- ident,
- ip6addr_string(obj_tptr));
- obj_tlen-=sizeof(struct in6_addr);
- obj_tptr+=sizeof(struct in6_addr);
+ if (obj_tlen < sizeof(nd_ipv6))
+ goto obj_tooshort;
+ ND_PRINT("%s IPv6 Receiver Address: %s",
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr));
+ obj_tlen-=sizeof(nd_ipv6);
+ obj_tptr+=sizeof(nd_ipv6);
break;
-#endif
default:
hexdump=TRUE;
}
case RSVP_OBJ_NOTIFY_REQ:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
- if (obj_tlen < sizeof(struct in_addr))
- return -1;
- printf("%s IPv4 Notify Node Address: %s",
- ident,
- ipaddr_string(obj_tptr));
- obj_tlen-=sizeof(struct in_addr);
- obj_tptr+=sizeof(struct in_addr);
+ if (obj_tlen < sizeof(nd_ipv4))
+ goto obj_tooshort;
+ ND_PRINT("%s IPv4 Notify Node Address: %s",
+ indent,
+ GET_IPADDR_STRING(obj_tptr));
+ obj_tlen-=sizeof(nd_ipv4);
+ obj_tptr+=sizeof(nd_ipv4);
break;
-#ifdef INET6
case RSVP_CTYPE_IPV6:
- if (obj_tlen < sizeof(struct in6_addr))
- return-1;
- printf("%s IPv6 Notify Node Address: %s",
- ident,
- ip6addr_string(obj_tptr));
- obj_tlen-=sizeof(struct in6_addr);
- obj_tptr+=sizeof(struct in6_addr);
+ if (obj_tlen < sizeof(nd_ipv6))
+ goto obj_tooshort;
+ ND_PRINT("%s IPv6 Notify Node Address: %s",
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr));
+ obj_tlen-=sizeof(nd_ipv6);
+ obj_tptr+=sizeof(nd_ipv6);
break;
-#endif
default:
hexdump=TRUE;
}
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
while(obj_tlen >= 4 ) {
- printf("%s Label: %u", ident, EXTRACT_32BITS(obj_tptr));
+ ND_PRINT("%s Label: %u", indent, GET_BE_U_4(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
}
break;
case RSVP_CTYPE_2:
if (obj_tlen < 4)
- return-1;
- printf("%s Generalized Label: %u",
- ident,
- EXTRACT_32BITS(obj_tptr));
+ goto obj_tooshort;
+ ND_PRINT("%s Generalized Label: %u",
+ indent,
+ GET_BE_U_4(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
break;
case RSVP_CTYPE_3:
if (obj_tlen < 12)
- return-1;
- printf("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
- ident,
- EXTRACT_32BITS(obj_tptr),
- ident,
- EXTRACT_32BITS(obj_tptr+4),
- EXTRACT_32BITS(obj_tptr+8));
+ goto obj_tooshort;
+ ND_PRINT("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
+ indent,
+ GET_BE_U_4(obj_tptr),
+ indent,
+ GET_BE_U_4(obj_tptr + 4),
+ GET_BE_U_4(obj_tptr + 8));
obj_tlen-=12;
obj_tptr+=12;
break;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
- return-1;
- printf("%s Reservation Style: %s, Flags: [0x%02x]",
- ident,
+ goto obj_tooshort;
+ ND_PRINT("%s Reservation Style: %s, Flags: [0x%02x]",
+ indent,
tok2str(rsvp_resstyle_values,
"Unknown",
- EXTRACT_24BITS(obj_tptr+1)),
- *(obj_tptr));
+ GET_BE_U_3(obj_tptr + 1)),
+ GET_U_1(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
break;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
- return-1;
- printf("%s Source Address: %s, Source Port: %u",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+6));
+ goto obj_tooshort;
+ ND_PRINT("%s Source Address: %s, Source Port: %u",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 6));
obj_tlen-=8;
obj_tptr+=8;
break;
-#ifdef INET6
case RSVP_CTYPE_IPV6:
if (obj_tlen < 20)
- return-1;
- printf("%s Source Address: %s, Source Port: %u",
- ident,
- ip6addr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+18));
+ goto obj_tooshort;
+ ND_PRINT("%s Source Address: %s, Source Port: %u",
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 18));
obj_tlen-=20;
obj_tptr+=20;
break;
case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
if (obj_tlen < 40)
- return-1;
- printf("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
+ goto obj_tooshort;
+ ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
"%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
- ident,
- ip6addr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+18),
- ident,
- ip6addr_string(obj_tptr+20),
- EXTRACT_16BITS(obj_tptr+38));
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 18),
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr+20),
+ GET_BE_U_2(obj_tptr + 38));
obj_tlen-=40;
obj_tptr+=40;
break;
-#endif
case RSVP_CTYPE_TUNNEL_IPV4:
if (obj_tlen < 8)
- return-1;
- printf("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+6));
+ goto obj_tooshort;
+ ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 6));
obj_tlen-=8;
obj_tptr+=8;
break;
case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
if (obj_tlen < 16)
- return-1;
- printf("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
+ goto obj_tooshort;
+ ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
"%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+6),
- ident,
- ipaddr_string(obj_tptr+8),
- EXTRACT_16BITS(obj_tptr+12));
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 6),
+ indent,
+ GET_IPADDR_STRING(obj_tptr+8),
+ GET_BE_U_2(obj_tptr + 12));
obj_tlen-=16;
obj_tptr+=16;
break;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
while(obj_tlen >= 4 ) {
- printf("%s L3 Protocol ID: %s",
- ident,
+ ND_PRINT("%s L3 Protocol ID: %s",
+ indent,
tok2str(ethertype_values,
"Unknown Protocol (0x%04x)",
- EXTRACT_16BITS(obj_tptr+2)));
+ GET_BE_U_2(obj_tptr + 2)));
obj_tlen-=4;
obj_tptr+=4;
}
break;
case RSVP_CTYPE_2:
if (obj_tlen < 12)
- return-1;
- printf("%s L3 Protocol ID: %s",
- ident,
+ goto obj_tooshort;
+ ND_PRINT("%s L3 Protocol ID: %s",
+ indent,
tok2str(ethertype_values,
"Unknown Protocol (0x%04x)",
- EXTRACT_16BITS(obj_tptr+2)));
- printf(",%s merge capability",((*(obj_tptr+4))&0x80) ? "no" : "" );
- printf("%s Minimum VPI/VCI: %u/%u",
- ident,
- (EXTRACT_16BITS(obj_tptr+4))&0xfff,
- (EXTRACT_16BITS(obj_tptr+6))&0xfff);
- printf("%s Maximum VPI/VCI: %u/%u",
- ident,
- (EXTRACT_16BITS(obj_tptr+8))&0xfff,
- (EXTRACT_16BITS(obj_tptr+10))&0xfff);
+ GET_BE_U_2(obj_tptr + 2)));
+ ND_PRINT(",%s merge capability",
+ ((GET_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" );
+ ND_PRINT("%s Minimum VPI/VCI: %u/%u",
+ indent,
+ (GET_BE_U_2(obj_tptr + 4))&0xfff,
+ (GET_BE_U_2(obj_tptr + 6)) & 0xfff);
+ ND_PRINT("%s Maximum VPI/VCI: %u/%u",
+ indent,
+ (GET_BE_U_2(obj_tptr + 8))&0xfff,
+ (GET_BE_U_2(obj_tptr + 10)) & 0xfff);
obj_tlen-=12;
obj_tptr+=12;
break;
case RSVP_CTYPE_3:
if (obj_tlen < 12)
- return-1;
- printf("%s L3 Protocol ID: %s",
- ident,
+ goto obj_tooshort;
+ ND_PRINT("%s L3 Protocol ID: %s",
+ indent,
tok2str(ethertype_values,
"Unknown Protocol (0x%04x)",
- EXTRACT_16BITS(obj_tptr+2)));
- printf("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
- ident,
- (EXTRACT_32BITS(obj_tptr+4))&0x7fffff,
- (EXTRACT_32BITS(obj_tptr+8))&0x7fffff,
- (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 0 ) ? "10" : "",
- (((EXTRACT_16BITS(obj_tptr+4)>>7)&3) == 2 ) ? "23" : "");
+ GET_BE_U_2(obj_tptr + 2)));
+ ND_PRINT("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
+ indent,
+ (GET_BE_U_4(obj_tptr + 4))&0x7fffff,
+ (GET_BE_U_4(obj_tptr + 8))&0x7fffff,
+ (((GET_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "",
+ (((GET_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : "");
obj_tlen-=12;
obj_tptr+=12;
break;
case RSVP_CTYPE_4:
if (obj_tlen < 4)
- return-1;
- printf("%s LSP Encoding Type: %s (%u)",
- ident,
+ goto obj_tooshort;
+ ND_PRINT("%s LSP Encoding Type: %s (%u)",
+ indent,
tok2str(gmpls_encoding_values,
"Unknown",
- *obj_tptr),
- *obj_tptr);
- printf("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
- ident,
+ GET_U_1(obj_tptr)),
+ GET_U_1(obj_tptr));
+ ND_PRINT("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
+ indent,
tok2str(gmpls_switch_cap_values,
"Unknown",
- *(obj_tptr+1)),
- *(obj_tptr+1),
+ GET_U_1((obj_tptr + 1))),
+ GET_U_1(obj_tptr + 1),
tok2str(gmpls_payload_values,
"Unknown",
- EXTRACT_16BITS(obj_tptr+2)),
- EXTRACT_16BITS(obj_tptr+2));
+ GET_BE_U_2(obj_tptr + 2)),
+ GET_BE_U_2(obj_tptr + 2));
obj_tlen-=4;
obj_tptr+=4;
break;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
while(obj_tlen >= 4 ) {
- printf("%s Subobject Type: %s, length %u",
- ident,
+ u_char length;
+
+ ND_TCHECK_4(obj_tptr);
+ length = GET_U_1(obj_tptr + 1);
+ ND_PRINT("%s Subobject Type: %s, length %u",
+ indent,
tok2str(rsvp_obj_xro_values,
"Unknown %u",
- RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)),
- *(obj_tptr+1));
+ RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))),
+ length);
+ if (obj_tlen < length) {
+ ND_PRINT("%s ERROR: ERO subobject length > object length", indent);
+ break;
+ }
- if (*(obj_tptr+1) == 0) { /* prevent infinite loops */
- printf("%s ERROR: zero length ERO subtype",ident);
+ if (length == 0) { /* prevent infinite loops */
+ ND_PRINT("%s ERROR: zero length ERO subtype", indent);
break;
}
- switch(RSVP_OBJ_XRO_MASK_SUBOBJ(*obj_tptr)) {
+ switch(RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))) {
+ u_char prefix_length;
+
case RSVP_OBJ_XRO_IPV4:
- printf(", %s, %s/%u, Flags: [%s]",
- RSVP_OBJ_XRO_MASK_LOOSE(*obj_tptr) ? "Loose" : "Strict",
- ipaddr_string(obj_tptr+2),
- *(obj_tptr+6),
+ if (length != 8) {
+ ND_PRINT(" ERROR: length != 8");
+ goto invalid;
+ }
+ ND_TCHECK_8(obj_tptr);
+ prefix_length = GET_U_1(obj_tptr + 6);
+ if (prefix_length != 32) {
+ ND_PRINT(" ERROR: Prefix length %u != 32",
+ prefix_length);
+ goto invalid;
+ }
+ ND_PRINT(", %s, %s/%u, Flags: [%s]",
+ RSVP_OBJ_XRO_MASK_LOOSE(GET_U_1(obj_tptr)) ? "Loose" : "Strict",
+ GET_IPADDR_STRING(obj_tptr+2),
+ GET_U_1((obj_tptr + 6)),
bittok2str(rsvp_obj_rro_flag_values,
"none",
- *(obj_tptr+7))); /* rfc3209 says that this field is rsvd. */
+ GET_U_1((obj_tptr + 7)))); /* rfc3209 says that this field is rsvd. */
break;
case RSVP_OBJ_XRO_LABEL:
- printf(", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
+ if (length != 8) {
+ ND_PRINT(" ERROR: length != 8");
+ goto invalid;
+ }
+ ND_PRINT(", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
bittok2str(rsvp_obj_rro_label_flag_values,
"none",
- *(obj_tptr+2)),
- *(obj_tptr+2),
+ GET_U_1((obj_tptr + 2))),
+ GET_U_1(obj_tptr + 2),
tok2str(rsvp_ctype_values,
"Unknown",
- *(obj_tptr+3) + 256*RSVP_OBJ_RRO),
- *(obj_tptr+3),
- EXTRACT_32BITS(obj_tptr+4));
+ GET_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)),
+ GET_U_1((obj_tptr + 3)),
+ GET_BE_U_4(obj_tptr + 4));
}
- obj_tlen-=*(obj_tptr+1);
- obj_tptr+=*(obj_tptr+1);
+ obj_tlen-=length;
+ obj_tptr+=length;
}
break;
default:
case RSVP_CTYPE_1:
case RSVP_CTYPE_2:
if (obj_tlen < 8)
- return-1;
- printf("%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
- ident,
- EXTRACT_32BITS(obj_tptr),
- EXTRACT_32BITS(obj_tptr+4));
+ goto obj_tooshort;
+ ND_PRINT("%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
+ indent,
+ GET_BE_U_4(obj_tptr),
+ GET_BE_U_4(obj_tptr + 4));
obj_tlen-=8;
obj_tptr+=8;
break;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 8)
- return-1;
- printf("%s Restart Time: %ums, Recovery Time: %ums",
- ident,
- EXTRACT_32BITS(obj_tptr),
- EXTRACT_32BITS(obj_tptr+4));
+ goto obj_tooshort;
+ ND_PRINT("%s Restart Time: %ums, Recovery Time: %ums",
+ indent,
+ GET_BE_U_4(obj_tptr),
+ GET_BE_U_4(obj_tptr + 4));
obj_tlen-=8;
obj_tptr+=8;
break;
}
break;
+ case RSVP_OBJ_CAPABILITY:
+ switch(rsvp_obj_ctype) {
+ case RSVP_CTYPE_1:
+ if (obj_tlen < 4)
+ goto obj_tooshort;
+ uint32_t unused_and_flags = GET_BE_U_4(obj_tptr);
+ if (unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK)
+ ND_PRINT("%s [reserved=0x%08x must be zero]", indent,
+ unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK);
+ ND_PRINT("%s Flags: [%s]",
+ indent,
+ bittok2str(rsvp_obj_capability_flag_values,
+ "none",
+ (unused_and_flags & RSVP_OBJ_CAPABILITY_FLAGS_MASK)));
+ obj_tlen-=4;
+ obj_tptr+=4;
+ break;
+ default:
+ hexdump=TRUE;
+ }
+ break;
+
case RSVP_OBJ_SESSION_ATTRIBUTE:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_TUNNEL_IPV4:
if (obj_tlen < 4)
- return-1;
- namelen = *(obj_tptr+3);
+ goto obj_tooshort;
+ namelen = GET_U_1(obj_tptr + 3);
if (obj_tlen < 4+namelen)
- return-1;
- printf("%s Session Name: ", ident);
+ goto obj_tooshort;
+ ND_PRINT("%s Session Name: ", indent);
for (i = 0; i < namelen; i++)
- safeputchar(*(obj_tptr+4+i));
- printf("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
- ident,
- (int)*obj_tptr,
- (int)*(obj_tptr+1),
+ fn_print_char(ndo, GET_U_1(obj_tptr + 4 + i));
+ ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
+ indent,
+ GET_U_1(obj_tptr),
+ GET_U_1(obj_tptr + 1),
bittok2str(rsvp_session_attribute_flag_values,
"none",
- *(obj_tptr+2)),
- *(obj_tptr+2));
- obj_tlen-=4+*(obj_tptr+3);
- obj_tptr+=4+*(obj_tptr+3);
+ GET_U_1((obj_tptr + 2))),
+ GET_U_1(obj_tptr + 2));
+ obj_tlen-=4+namelen;
+ obj_tptr+=4+namelen;
break;
default:
hexdump=TRUE;
case RSVP_OBJ_GENERALIZED_UNI:
switch(rsvp_obj_ctype) {
- int subobj_type,af,subobj_len,total_subobj_len;
+ u_int subobj_type,af,subobj_len,total_subobj_len;
case RSVP_CTYPE_1:
if (obj_tlen < 4)
- return-1;
+ goto obj_tooshort;
/* read variable length subobjects */
total_subobj_len = obj_tlen;
while(total_subobj_len > 0) {
- subobj_len = EXTRACT_16BITS(obj_tptr);
- subobj_type = (EXTRACT_16BITS(obj_tptr+2))>>8;
- af = (EXTRACT_16BITS(obj_tptr+2))&0x00FF;
-
- printf("%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
- ident,
+ /* If RFC 3476 Section 3.1 defined that a sub-object of the
+ * GENERALIZED_UNI RSVP object must have the Length field as
+ * a multiple of 4, instead of the check below it would be
+ * better to test total_subobj_len only once before the loop.
+ * So long as it does not define it and this while loop does
+ * not implement such a requirement, let's accept that within
+ * each iteration subobj_len may happen to be a multiple of 1
+ * and test it and total_subobj_len respectively.
+ */
+ ND_ICHECK_U(total_subobj_len, <, 4);
+ subobj_len = GET_BE_U_2(obj_tptr);
+ subobj_type = (GET_BE_U_2(obj_tptr + 2))>>8;
+ af = (GET_BE_U_2(obj_tptr + 2))&0x00FF;
+
+ ND_PRINT("%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
+ indent,
tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
subobj_type,
tok2str(af_values, "Unknown", af), af,
subobj_len);
+ /* In addition to what is explained above, the same spec does not
+ * explicitly say that the same Length field includes the 4-octet
+ * sub-object header, but as long as this while loop implements it
+ * as it does include, let's keep the check below consistent with
+ * the rest of the code.
+ *
+ * XXX - RFC 3476 Section 3.1 says "The contents of these
+ * sub-objects are described in [8]", where [8] is
+ * UNI 1.0 Signaling Specification, The Optical
+ * Internetworking Forum. The URL they give for that
+ * document is
+ *
+ * http://www.oiforum.com/public/UNI_1.0_ia.html
+ *
+ * but that doesn't work; the new URL appears to be
+ *
+ * https://web.archive.org/web/20160401194747/http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf
+ *
+ * and *that* document, in section 12.5.2.3
+ * "GENERALIZED_UNI Object (Class-Num=11bbbbbb (TBA))",
+ * says nothing about the length field in general, but
+ * some of the examples it gives in subsections have
+ * length field values that clearly includes the length
+ * of the sub-object header as well as the length of the
+ * value.
+ */
+ if(subobj_len < 4 || subobj_len > total_subobj_len ||
+ obj_tlen < subobj_len)
+ goto invalid;
+
switch(subobj_type) {
case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
switch(af) {
- case AFNUM_INET:
+ case AFNUM_IP:
if (subobj_len < 8)
- return -1;
- printf("%s UNI IPv4 TNA address: %s",
- ident, ipaddr_string(obj_tptr+4));
+ goto subobj_tooshort;
+ ND_PRINT("%s UNI IPv4 TNA address: %s",
+ indent, GET_IPADDR_STRING(obj_tptr + 4));
break;
-#ifdef INET6
- case AFNUM_INET6:
+ case AFNUM_IP6:
if (subobj_len < 20)
- return -1;
- printf("%s UNI IPv6 TNA address: %s",
- ident, ip6addr_string(obj_tptr+4));
+ goto subobj_tooshort;
+ ND_PRINT("%s UNI IPv6 TNA address: %s",
+ indent, GET_IP6ADDR_STRING(obj_tptr + 4));
break;
-#endif
case AFNUM_NSAP:
if (subobj_len) {
/* unless we have a TLV parser lets just hexdump */
break;
case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
- if (subobj_len) {
+ if (subobj_len > 4) {
/* unless we have a TLV parser lets just hexdump */
hexdump=TRUE;
}
case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
if (subobj_len < 16) {
- return -1;
+ goto subobj_tooshort;
}
- printf("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
- ident,
- ((EXTRACT_32BITS(obj_tptr+4))>>31),
- ((EXTRACT_32BITS(obj_tptr+4))&0xFF),
- EXTRACT_32BITS(obj_tptr+8),
- EXTRACT_32BITS(obj_tptr+12));
+ ND_PRINT("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
+ indent,
+ ((GET_BE_U_4(obj_tptr + 4))>>31),
+ ((GET_BE_U_4(obj_tptr + 4))&0xFF),
+ GET_BE_U_4(obj_tptr + 8),
+ GET_BE_U_4(obj_tptr + 12));
break;
case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
if (subobj_len < 8) {
- return -1;
+ goto subobj_tooshort;
}
- printf("%s Service level: %u",
- ident, (EXTRACT_32BITS(obj_tptr+4))>>24);
+ ND_PRINT("%s Service level: %u",
+ indent, (GET_BE_U_4(obj_tptr + 4)) >> 24);
break;
default:
obj_tptr+=subobj_len;
obj_tlen+=subobj_len;
}
-
- if (total_subobj_len) {
- /* unless we have a TLV parser lets just hexdump */
- hexdump=TRUE;
- }
break;
default:
case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
- return-1;
- printf("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_32BITS(obj_tptr+4));
+ goto obj_tooshort;
+ ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_4(obj_tptr + 4));
obj_tlen-=8;
obj_tptr+=8;
if (obj_tlen)
hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
break;
-#ifdef INET6
case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
case RSVP_CTYPE_IPV6:
if (obj_tlen < 20)
- return-1;
- printf("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
- ident,
- ip6addr_string(obj_tptr),
- EXTRACT_32BITS(obj_tptr+16));
+ goto obj_tooshort;
+ ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr),
+ GET_BE_U_4(obj_tptr + 16));
obj_tlen-=20;
obj_tptr+=20;
hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
break;
-#endif
default:
hexdump=TRUE;
}
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
- return-1;
- printf("%s Refresh Period: %ums",
- ident,
- EXTRACT_32BITS(obj_tptr));
+ goto obj_tooshort;
+ ND_PRINT("%s Refresh Period: %ums",
+ indent,
+ GET_BE_U_4(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
break;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_2:
if (obj_tlen < 4)
- return-1;
- printf("%s Msg-Version: %u, length: %u",
- ident,
- (*obj_tptr & 0xf0) >> 4,
- EXTRACT_16BITS(obj_tptr+2)<<2);
+ goto obj_tooshort;
+ ND_PRINT("%s Msg-Version: %u, length: %u",
+ indent,
+ (GET_U_1(obj_tptr) & 0xf0) >> 4,
+ GET_BE_U_2(obj_tptr + 2) << 2);
obj_tptr+=4; /* get to the start of the service header */
obj_tlen-=4;
while (obj_tlen >= 4) {
- intserv_serv_tlen=EXTRACT_16BITS(obj_tptr+2)<<2;
- printf("%s Service Type: %s (%u), break bit %s set, Service length: %u",
- ident,
- tok2str(rsvp_intserv_service_type_values,"unknown",*(obj_tptr)),
- *(obj_tptr),
- (*(obj_tptr+1)&0x80) ? "" : "not",
+ intserv_serv_tlen=GET_BE_U_2(obj_tptr + 2)<<2;
+ ND_PRINT("%s Service Type: %s (%u), break bit %sset, Service length: %u",
+ indent,
+ tok2str(rsvp_intserv_service_type_values,"unknown",GET_U_1((obj_tptr))),
+ GET_U_1(obj_tptr),
+ (GET_U_1(obj_tptr + 1)&0x80) ? "" : "not ",
intserv_serv_tlen);
obj_tptr+=4; /* get to the start of the parameter list */
obj_tlen-=4;
while (intserv_serv_tlen>=4) {
- processed = rsvp_intserv_print(obj_tptr, obj_tlen);
+ processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
if (processed == 0)
break;
obj_tlen-=processed;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
- return-1;
- printf("%s Source Address: %s, Source Port: %u",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+6));
+ goto obj_tooshort;
+ ND_PRINT("%s Source Address: %s, Source Port: %u",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 6));
obj_tlen-=8;
obj_tptr+=8;
break;
-#ifdef INET6
case RSVP_CTYPE_IPV6:
if (obj_tlen < 20)
- return-1;
- printf("%s Source Address: %s, Source Port: %u",
- ident,
- ip6addr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+18));
+ goto obj_tooshort;
+ ND_PRINT("%s Source Address: %s, Source Port: %u",
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 18));
obj_tlen-=20;
obj_tptr+=20;
break;
case RSVP_CTYPE_3:
if (obj_tlen < 20)
- return-1;
- printf("%s Source Address: %s, Flow Label: %u",
- ident,
- ip6addr_string(obj_tptr),
- EXTRACT_24BITS(obj_tptr+17));
+ goto obj_tooshort;
+ ND_PRINT("%s Source Address: %s, Flow Label: %u",
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr),
+ GET_BE_U_3(obj_tptr + 17));
obj_tlen-=20;
obj_tptr+=20;
break;
case RSVP_CTYPE_TUNNEL_IPV6:
if (obj_tlen < 20)
- return-1;
- printf("%s Source Address: %s, LSP-ID: 0x%04x",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+18));
+ goto obj_tooshort;
+ ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 18));
obj_tlen-=20;
obj_tptr+=20;
break;
case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
if (obj_tlen < 40)
- return-1;
- printf("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
+ goto obj_tooshort;
+ ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
"%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
- ident,
- ip6addr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+18),
- ident,
- ip6addr_string(obj_tptr+20),
- EXTRACT_16BITS(obj_tptr+38));
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 18),
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr+20),
+ GET_BE_U_2(obj_tptr + 38));
obj_tlen-=40;
obj_tptr+=40;
break;
-#endif
case RSVP_CTYPE_TUNNEL_IPV4:
if (obj_tlen < 8)
- return-1;
- printf("%s Source Address: %s, LSP-ID: 0x%04x",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+6));
+ goto obj_tooshort;
+ ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 6));
obj_tlen-=8;
obj_tptr+=8;
break;
case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
if (obj_tlen < 16)
- return-1;
- printf("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
+ goto obj_tooshort;
+ ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
"%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
- ident,
- ipaddr_string(obj_tptr),
- EXTRACT_16BITS(obj_tptr+6),
- ident,
- ipaddr_string(obj_tptr+8),
- EXTRACT_16BITS(obj_tptr+12));
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_BE_U_2(obj_tptr + 6),
+ indent,
+ GET_IPADDR_STRING(obj_tptr+8),
+ GET_BE_U_2(obj_tptr + 12));
obj_tlen-=16;
obj_tptr+=16;
break;
case RSVP_OBJ_FASTREROUTE:
/* the differences between c-type 1 and 7 are minor */
obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
- bw.i = EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->bandwidth);
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1: /* new style */
if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
- return-1;
- printf("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
- ident,
- (int)obj_ptr.rsvp_obj_frr->setup_prio,
- (int)obj_ptr.rsvp_obj_frr->hold_prio,
- (int)obj_ptr.rsvp_obj_frr->hop_limit,
- bw.f*8/1000000);
- printf("%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
- ident,
- EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->include_any),
- EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->exclude_any),
- EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->include_all));
+ goto obj_tooshort;
+ bw.i = GET_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
+ ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
+ indent,
+ obj_ptr.rsvp_obj_frr->setup_prio,
+ obj_ptr.rsvp_obj_frr->hold_prio,
+ obj_ptr.rsvp_obj_frr->hop_limit,
+ bw.f * 8 / 1000000);
+ ND_PRINT("%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
+ indent,
+ GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
+ GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any),
+ GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_all));
obj_tlen-=sizeof(struct rsvp_obj_frr_t);
obj_tptr+=sizeof(struct rsvp_obj_frr_t);
break;
case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
if (obj_tlen < 16)
- return-1;
- printf("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
- ident,
- (int)obj_ptr.rsvp_obj_frr->setup_prio,
- (int)obj_ptr.rsvp_obj_frr->hold_prio,
- (int)obj_ptr.rsvp_obj_frr->hop_limit,
- bw.f*8/1000000);
- printf("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
- ident,
- EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->include_any),
- EXTRACT_32BITS(obj_ptr.rsvp_obj_frr->exclude_any));
+ goto obj_tooshort;
+ bw.i = GET_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
+ ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
+ indent,
+ obj_ptr.rsvp_obj_frr->setup_prio,
+ obj_ptr.rsvp_obj_frr->hold_prio,
+ obj_ptr.rsvp_obj_frr->hop_limit,
+ bw.f * 8 / 1000000);
+ ND_PRINT("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
+ indent,
+ GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
+ GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any));
obj_tlen-=16;
obj_tptr+=16;
break;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_TUNNEL_IPV4:
while(obj_tlen >= 8) {
- printf("%s PLR-ID: %s, Avoid-Node-ID: %s",
- ident,
- ipaddr_string(obj_tptr),
- ipaddr_string(obj_tptr+4));
+ ND_PRINT("%s PLR-ID: %s, Avoid-Node-ID: %s",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_IPADDR_STRING(obj_tptr + 4));
obj_tlen-=8;
obj_tptr+=8;
}
case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
- printf("%s CT: %u",
- ident,
- EXTRACT_32BITS(obj_tptr)&0x7);
+ if (obj_tlen < 4)
+ goto obj_tooshort;
+ ND_PRINT("%s CT: %u",
+ indent,
+ GET_BE_U_4(obj_tptr) & 0x7);
obj_tlen-=4;
obj_tptr+=4;
break;
case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
- return-1;
- error_code=*(obj_tptr+5);
- error_value=EXTRACT_16BITS(obj_tptr+6);
- printf("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
- ident,
- ipaddr_string(obj_tptr),
- *(obj_tptr+4),
- ident,
+ goto obj_tooshort;
+ error_code=GET_U_1(obj_tptr + 5);
+ error_value=GET_BE_U_2(obj_tptr + 6);
+ ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
+ indent,
+ GET_IPADDR_STRING(obj_tptr),
+ GET_U_1(obj_tptr + 4),
+ indent,
tok2str(rsvp_obj_error_code_values,"unknown",error_code),
error_code);
switch (error_code) {
case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
- printf(", Error Value: %s (%u)",
+ ND_PRINT(", Error Value: %s (%u)",
tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
error_value);
break;
case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
- printf(", Error Value: %s (%u)",
+ ND_PRINT(", Error Value: %s (%u)",
tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
error_value);
break;
default:
- printf(", Unknown Error Value (%u)", error_value);
+ ND_PRINT(", Unknown Error Value (%u)", error_value);
break;
}
obj_tlen-=8;
obj_tptr+=8;
break;
-#ifdef INET6
case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
case RSVP_CTYPE_IPV6:
if (obj_tlen < 20)
- return-1;
- error_code=*(obj_tptr+17);
- error_value=EXTRACT_16BITS(obj_tptr+18);
- printf("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
- ident,
- ip6addr_string(obj_tptr),
- *(obj_tptr+16),
- ident,
+ goto obj_tooshort;
+ error_code=GET_U_1(obj_tptr + 17);
+ error_value=GET_BE_U_2(obj_tptr + 18);
+ ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
+ indent,
+ GET_IP6ADDR_STRING(obj_tptr),
+ GET_U_1(obj_tptr + 16),
+ indent,
tok2str(rsvp_obj_error_code_values,"unknown",error_code),
error_code);
switch (error_code) {
case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
- printf(", Error Value: %s (%u)",
+ ND_PRINT(", Error Value: %s (%u)",
tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
error_value);
break;
obj_tlen-=20;
obj_tptr+=20;
break;
-#endif
default:
hexdump=TRUE;
}
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
- return-1;
- padbytes = EXTRACT_16BITS(obj_tptr+2);
- printf("%s TLV count: %u, padding bytes: %u",
- ident,
- EXTRACT_16BITS(obj_tptr),
+ goto obj_tooshort;
+ padbytes = GET_BE_U_2(obj_tptr + 2);
+ ND_PRINT("%s TLV count: %u, padding bytes: %u",
+ indent,
+ GET_BE_U_2(obj_tptr),
padbytes);
obj_tlen-=4;
obj_tptr+=4;
/* loop through as long there is anything longer than the TLV header (2) */
while(obj_tlen >= 2 + padbytes) {
- printf("%s %s TLV (0x%02x), length: %u", /* length includes header */
- ident,
- tok2str(rsvp_obj_prop_tlv_values,"unknown",*obj_tptr),
- *obj_tptr,
- *(obj_tptr+1));
- if (obj_tlen < *(obj_tptr+1))
- return-1;
- if (*(obj_tptr+1) < 2)
+ ND_PRINT("%s %s TLV (0x%02x), length: %u", /* length includes header */
+ indent,
+ tok2str(rsvp_obj_prop_tlv_values,"unknown",GET_U_1(obj_tptr)),
+ GET_U_1(obj_tptr),
+ GET_U_1(obj_tptr + 1));
+ if (obj_tlen < GET_U_1(obj_tptr + 1))
+ goto obj_tooshort;
+ if (GET_U_1(obj_tptr + 1) < 2) {
+ ND_PRINT("%sERROR: property TLV is too short", indent);
return -1;
- print_unknown_data(gndo,obj_tptr+2,"\n\t\t",*(obj_tptr+1)-2);
- obj_tlen-=*(obj_tptr+1);
- obj_tptr+=*(obj_tptr+1);
+ }
+ print_unknown_data(ndo, obj_tptr + 2, "\n\t\t",
+ GET_U_1(obj_tptr + 1) - 2);
+ obj_tlen-=GET_U_1(obj_tptr + 1);
+ obj_tptr+=GET_U_1(obj_tptr + 1);
}
break;
default:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
case RSVP_CTYPE_2:
- if (obj_tlen < 8)
- return-1;
- printf("%s Flags [0x%02x], epoch: %u",
- ident,
- *obj_tptr,
- EXTRACT_24BITS(obj_tptr+1));
+ if (obj_tlen < 4)
+ goto obj_tooshort;
+ ND_PRINT("%s Flags [0x%02x], epoch: %u",
+ indent,
+ GET_U_1(obj_tptr),
+ GET_BE_U_3(obj_tptr + 1));
obj_tlen-=4;
obj_tptr+=4;
/* loop through as long there are no messages left */
while(obj_tlen >= 4) {
- printf("%s Message-ID 0x%08x (%u)",
- ident,
- EXTRACT_32BITS(obj_tptr),
- EXTRACT_32BITS(obj_tptr));
+ ND_PRINT("%s Message-ID 0x%08x (%u)",
+ indent,
+ GET_BE_U_4(obj_tptr),
+ GET_BE_U_4(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
}
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
- return-1;
+ goto obj_tooshort;
obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
- printf("%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
- ident,
- EXTRACT_16BITS(obj_ptr.rsvp_obj_integrity->key_id),
- EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->key_id+2),
- EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->sequence),
- EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->sequence+4),
+ ND_PRINT("%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
+ indent,
+ GET_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id),
+ GET_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2),
+ GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence),
+ GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4),
bittok2str(rsvp_obj_integrity_flag_values,
"none",
obj_ptr.rsvp_obj_integrity->flags));
- printf("%s MD5-sum 0x%08x%08x%08x%08x ",
- ident,
- EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->digest),
- EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->digest+4),
- EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->digest+8),
- EXTRACT_32BITS(obj_ptr.rsvp_obj_integrity->digest+12));
-
-#ifdef HAVE_LIBCRYPTO
- sigcheck = signature_verify(pptr, plen, (unsigned char *)obj_ptr.\
- rsvp_obj_integrity->digest);
-#else
- sigcheck = CANT_CHECK_SIGNATURE;
-#endif
- printf(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
+ ND_PRINT("%s MD5-sum 0x%08x%08x%08x%08x ",
+ indent,
+ GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest),
+ GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4),
+ GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8),
+ GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12));
+
+ sigcheck = signature_verify(ndo, pptr, plen,
+ obj_ptr.rsvp_obj_integrity->digest,
+ rsvp_clear_checksum,
+ rsvp_com_header);
+ ND_PRINT(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
- return-1;
- printf("%s Flags [%s]", ident,
+ goto obj_tooshort;
+ ND_PRINT("%s Flags [%s]", indent,
bittok2str(rsvp_obj_admin_status_flag_values, "none",
- EXTRACT_32BITS(obj_tptr)));
+ GET_BE_U_4(obj_tptr)));
obj_tlen-=4;
obj_tptr+=4;
break;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
- return-1;
- action = (EXTRACT_16BITS(obj_tptr)>>8);
+ goto obj_tooshort;
+ action = (GET_BE_U_2(obj_tptr)>>8);
- printf("%s Action: %s (%u), Label type: %u", ident,
+ ND_PRINT("%s Action: %s (%u), Label type: %u", indent,
tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
- action, ((EXTRACT_32BITS(obj_tptr) & 0x7F)));
+ action, (GET_BE_U_4(obj_tptr) & 0x7F));
switch (action) {
case LABEL_SET_INCLUSIVE_RANGE:
/* only a couple of subchannels are expected */
if (obj_tlen < 12)
- return -1;
- printf("%s Start range: %u, End range: %u", ident,
- EXTRACT_32BITS(obj_tptr+4),
- EXTRACT_32BITS(obj_tptr+8));
+ goto obj_tooshort;
+ ND_PRINT("%s Start range: %u, End range: %u", indent,
+ GET_BE_U_4(obj_tptr + 4),
+ GET_BE_U_4(obj_tptr + 8));
obj_tlen-=12;
obj_tptr+=12;
break;
obj_tptr+=4;
subchannel = 1;
while(obj_tlen >= 4 ) {
- printf("%s Subchannel #%u: %u", ident, subchannel,
- EXTRACT_32BITS(obj_tptr));
+ ND_PRINT("%s Subchannel #%u: %u", indent, subchannel,
+ GET_BE_U_4(obj_tptr));
obj_tptr+=4;
obj_tlen-=4;
subchannel++;
default:
hexdump=TRUE;
}
+ break;
case RSVP_OBJ_S2L:
switch (rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < 4)
- return-1;
- printf("%s Sub-LSP destination address: %s",
- ident, ipaddr_string(obj_tptr));
+ goto obj_tooshort;
+ ND_PRINT("%s Sub-LSP destination address: %s",
+ indent, GET_IPADDR_STRING(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
break;
-#ifdef INET6
case RSVP_CTYPE_IPV6:
if (obj_tlen < 16)
- return-1;
- printf("%s Sub-LSP destination address: %s",
- ident, ip6addr_string(obj_tptr));
+ goto obj_tooshort;
+ ND_PRINT("%s Sub-LSP destination address: %s",
+ indent, GET_IP6ADDR_STRING(obj_tptr));
obj_tlen-=16;
obj_tptr+=16;
break;
-#endif
default:
hexdump=TRUE;
}
+ break;
/*
* FIXME those are the defined objects that lack a decoder
case RSVP_OBJ_ACCEPT_LABEL_SET:
case RSVP_OBJ_PROTECTION:
default:
- if (vflag <= 1)
- print_unknown_data(gndo,obj_tptr,"\n\t ",obj_tlen); /* FIXME indentation */
+ if (ndo->ndo_vflag <= 1)
+ print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
break;
}
/* do we also want to see a hex dump ? */
- if (vflag > 1 || hexdump==TRUE)
- print_unknown_data(gndo,tptr+sizeof(struct rsvp_object_header),"\n\t ", /* FIXME indentation */
- rsvp_obj_len-sizeof(struct rsvp_object_header));
+ if (ndo->ndo_vflag > 1 || hexdump == TRUE)
+ print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
+ rsvp_obj_len - sizeof(struct rsvp_object_header));
tptr+=rsvp_obj_len;
tlen-=rsvp_obj_len;
}
return 0;
-trunc:
- printf("\n\t\t packet exceeded snapshot");
+subobj_tooshort:
+ ND_PRINT("%sERROR: sub-object is too short", indent);
+ return -1;
+obj_tooshort:
+ ND_PRINT("%sERROR: object is too short", indent);
+ return -1;
+invalid:
+ nd_print_invalid(ndo);
return -1;
}
-
void
-rsvp_print(register const u_char *pptr, register u_int len) {
-
- struct rsvp_common_header *rsvp_com_header;
- const u_char *tptr,*subtptr;
- u_short plen, tlen, subtlen;
-
+rsvp_print(netdissect_options *ndo,
+ const u_char *pptr, u_int len)
+{
+ const struct rsvp_common_header *rsvp_com_header;
+ uint8_t version_flags, msg_type;
+ const u_char *tptr;
+ u_short plen, tlen;
+
+ ndo->ndo_protocol = "rsvp";
tptr=pptr;
- rsvp_com_header = (struct rsvp_common_header *)pptr;
- TCHECK(*rsvp_com_header);
+ rsvp_com_header = (const struct rsvp_common_header *)pptr;
+ ND_TCHECK_SIZE(rsvp_com_header);
+ version_flags = GET_U_1(rsvp_com_header->version_flags);
/*
* Sanity checking of the header.
*/
- if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
- printf("ERROR: RSVP version %u packet not supported",
- RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags));
+ if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
+ ND_PRINT("ERROR: RSVP version %u packet not supported",
+ RSVP_EXTRACT_VERSION(version_flags));
return;
}
+ msg_type = GET_U_1(rsvp_com_header->msg_type);
+
/* in non-verbose mode just lets print the basic Message Type*/
- if (vflag < 1) {
- printf("RSVPv%u %s Message, length: %u",
- RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
- tok2str(rsvp_msg_type_values, "unknown (%u)",rsvp_com_header->msg_type),
+ if (ndo->ndo_vflag < 1) {
+ ND_PRINT("RSVPv%u %s Message, length: %u",
+ RSVP_EXTRACT_VERSION(version_flags),
+ tok2str(rsvp_msg_type_values, "unknown (%u)",msg_type),
len);
return;
}
/* ok they seem to want to know everything - lets fully decode it */
- plen = tlen = EXTRACT_16BITS(rsvp_com_header->length);
+ plen = tlen = GET_BE_U_2(rsvp_com_header->length);
- printf("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
- RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
- tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
- rsvp_com_header->msg_type,
- bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
+ ND_PRINT("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
+ RSVP_EXTRACT_VERSION(version_flags),
+ tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
+ msg_type,
+ bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
tlen,
- rsvp_com_header->ttl,
- EXTRACT_16BITS(rsvp_com_header->checksum));
+ GET_U_1(rsvp_com_header->ttl),
+ GET_BE_U_2(rsvp_com_header->checksum));
- /*
- * Clear checksum prior to signature verification.
- */
- rsvp_com_header->checksum[0] = 0;
- rsvp_com_header->checksum[1] = 0;
-
- if (tlen < sizeof(const struct rsvp_common_header)) {
- printf("ERROR: common header too short %u < %lu", tlen,
- (unsigned long)sizeof(const struct rsvp_common_header));
+ if (tlen < sizeof(struct rsvp_common_header)) {
+ ND_PRINT("ERROR: common header too short %u < %zu", tlen,
+ sizeof(struct rsvp_common_header));
return;
}
- tptr+=sizeof(const struct rsvp_common_header);
- tlen-=sizeof(const struct rsvp_common_header);
+ tptr+=sizeof(struct rsvp_common_header);
+ tlen-=sizeof(struct rsvp_common_header);
- switch(rsvp_com_header->msg_type) {
+ switch(msg_type) {
- case RSVP_MSGTYPE_AGGREGATE:
+ case RSVP_MSGTYPE_BUNDLE:
+ /*
+ * Process each submessage in the bundle message.
+ * Bundle messages may not contain bundle submessages, so we don't
+ * need to handle bundle submessages specially.
+ */
while(tlen > 0) {
- subtptr=tptr;
- rsvp_com_header = (struct rsvp_common_header *)subtptr;
- TCHECK(*rsvp_com_header);
+ const u_char *subpptr=tptr, *subtptr;
+ u_short subplen, subtlen;
+
+ subtptr=subpptr;
+
+ rsvp_com_header = (const struct rsvp_common_header *)subpptr;
+ ND_TCHECK_SIZE(rsvp_com_header);
+ version_flags = GET_U_1(rsvp_com_header->version_flags);
/*
* Sanity checking of the header.
*/
- if (RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags) != RSVP_VERSION) {
- printf("ERROR: RSVP version %u packet not supported",
- RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags));
+ if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
+ ND_PRINT("ERROR: RSVP version %u packet not supported",
+ RSVP_EXTRACT_VERSION(version_flags));
return;
}
- subtlen=EXTRACT_16BITS(rsvp_com_header->length);
- printf("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
- RSVP_EXTRACT_VERSION(rsvp_com_header->version_flags),
- tok2str(rsvp_msg_type_values, "unknown, type: %u",rsvp_com_header->msg_type),
- rsvp_com_header->msg_type,
- bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(rsvp_com_header->version_flags)),
- subtlen,
- rsvp_com_header->ttl,
- EXTRACT_16BITS(rsvp_com_header->checksum));
+ subplen = subtlen = GET_BE_U_2(rsvp_com_header->length);
- /*
- * Clear checksum prior to signature verification.
- */
- rsvp_com_header->checksum[0] = 0;
- rsvp_com_header->checksum[1] = 0;
+ msg_type = GET_U_1(rsvp_com_header->msg_type);
+ ND_PRINT("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
+ RSVP_EXTRACT_VERSION(version_flags),
+ tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
+ msg_type,
+ bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
+ subtlen,
+ GET_U_1(rsvp_com_header->ttl),
+ GET_BE_U_2(rsvp_com_header->checksum));
- if (subtlen < sizeof(const struct rsvp_common_header)) {
- printf("ERROR: common header too short %u < %lu", subtlen,
- (unsigned long)sizeof(const struct rsvp_common_header));
+ if (subtlen < sizeof(struct rsvp_common_header)) {
+ ND_PRINT("ERROR: common header too short %u < %zu", subtlen,
+ sizeof(struct rsvp_common_header));
return;
}
if (tlen < subtlen) {
- printf("ERROR: common header too large %u > %u", subtlen,
+ ND_PRINT("ERROR: common header too large %u > %u", subtlen,
tlen);
return;
}
- subtptr+=sizeof(const struct rsvp_common_header);
- subtlen-=sizeof(const struct rsvp_common_header);
+ subtptr+=sizeof(struct rsvp_common_header);
+ subtlen-=sizeof(struct rsvp_common_header);
- if (rsvp_obj_print(pptr, plen, subtptr,"\n\t ", subtlen) == -1)
+ /*
+ * Print all objects in the submessage.
+ */
+ if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
return;
- tptr+=subtlen+sizeof(const struct rsvp_common_header);
- tlen-=subtlen+sizeof(const struct rsvp_common_header);
+ tptr+=subtlen+sizeof(struct rsvp_common_header);
+ tlen-=subtlen+sizeof(struct rsvp_common_header);
}
break;
case RSVP_MSGTYPE_HELLO:
case RSVP_MSGTYPE_ACK:
case RSVP_MSGTYPE_SREFRESH:
- if (rsvp_obj_print(pptr, plen, tptr,"\n\t ", tlen) == -1)
+ /*
+ * Print all objects in the message.
+ */
+ if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
return;
break;
default:
- print_unknown_data(gndo,tptr,"\n\t ",tlen);
+ print_unknown_data(ndo, tptr, "\n\t ", tlen);
break;
}
-
- return;
-trunc:
- printf("\n\t\t packet exceeded snapshot");
}
projects / tcpdump / blobdiff