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* OSPF support contributed by Jeffrey Honig ([email protected])

*/

* OSPF support contributed by Jeffrey Honig ([email protected])

*/

-#ifndef lint

-static const char rcsid[] _U_ =

- "@(#) $Header: /tcpdump/master/tcpdump/print-ospf.c,v 1.47 2003-11-16 09:36:31 guy Exp $ (LBL)";

-#endif

-

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

-#include <tcpdump-stdinc.h>

-

-#include <stdio.h>

+#include <netdissect-stdinc.h>

-#include "interface.h"

+#include "netdissect.h"

#include "addrtoname.h"

#include "extract.h"

#include "gmpls.h"

#include "ospf.h"

#include "addrtoname.h"

#include "extract.h"

#include "gmpls.h"

#include "ospf.h"

-#include "ip.h"

+static const char tstr[] = " [|ospf2]";

+static const char istr[] = " (invalid)";

-static struct tok ospf_option_values[] = {

- { OSPF_OPTION_T, "TOS" },

+static const struct tok ospf_option_values[] = {

+ { OSPF_OPTION_T, "MultiTopology" }, /* draft-ietf-ospf-mt-09 */

{ OSPF_OPTION_E, "External" },

{ OSPF_OPTION_MC, "Multicast" },

{ OSPF_OPTION_NP, "NSSA" },

{ OSPF_OPTION_E, "External" },

{ OSPF_OPTION_MC, "Multicast" },

{ OSPF_OPTION_NP, "NSSA" },

- { OSPF_OPTION_EA, "Advertise External" },

+ { OSPF_OPTION_L, "LLS" },

{ OSPF_OPTION_DC, "Demand Circuit" },

{ OSPF_OPTION_O, "Opaque" },

{ OSPF_OPTION_DC, "Demand Circuit" },

{ OSPF_OPTION_O, "Opaque" },

+ { OSPF_OPTION_DN, "Up/Down" },

{ 0, NULL }

};

{ 0, NULL }

};

-static struct tok ospf_authtype_values[] = {

+static const struct tok ospf_authtype_values[] = {

{ OSPF_AUTH_NONE, "none" },

- { OSPF_AUTH_NONE, "simple" },

+ { OSPF_AUTH_SIMPLE, "simple" },

{ OSPF_AUTH_MD5, "MD5" },

{ 0, NULL }

};

{ OSPF_AUTH_MD5, "MD5" },

{ 0, NULL }

};

-static struct tok ospf_rla_flag_values[] = {

+static const struct tok ospf_rla_flag_values[] = {

{ RLA_FLAG_B, "ABR" },

{ RLA_FLAG_E, "ASBR" },

{ RLA_FLAG_W1, "Virtual" },

{ RLA_FLAG_B, "ABR" },

{ RLA_FLAG_E, "ASBR" },

{ RLA_FLAG_W1, "Virtual" },

{ 0, NULL }

};

{ 0, NULL }

};

-static struct tok type2str[] = {

+static const struct tok type2str[] = {

{ OSPF_TYPE_UMD, "UMD" },

{ OSPF_TYPE_HELLO, "Hello" },

{ OSPF_TYPE_DD, "Database Description" },

{ OSPF_TYPE_UMD, "UMD" },

{ OSPF_TYPE_HELLO, "Hello" },

{ OSPF_TYPE_DD, "Database Description" },

{ 0, NULL }

};

{ 0, NULL }

};

-static struct tok lsa_values[] = {

+static const struct tok lsa_values[] = {

{ LS_TYPE_ROUTER, "Router" },

{ LS_TYPE_NETWORK, "Network" },

{ LS_TYPE_SUM_IP, "Summary" },

{ LS_TYPE_ROUTER, "Router" },

{ LS_TYPE_NETWORK, "Network" },

{ LS_TYPE_SUM_IP, "Summary" },

{ 0, NULL }

};

{ 0, NULL }

};

-static struct tok ospf_dd_flag_values[] = {

+static const struct tok ospf_dd_flag_values[] = {

{ OSPF_DB_INIT, "Init" },

{ OSPF_DB_MORE, "More" },

{ OSPF_DB_MASTER, "Master" },

{ OSPF_DB_INIT, "Init" },

{ OSPF_DB_MORE, "More" },

{ OSPF_DB_MASTER, "Master" },

+ { OSPF_DB_RESYNC, "OOBResync" },

{ 0, NULL }

};

{ 0, NULL }

};

-static struct tok lsa_opaque_values[] = {

+static const struct tok lsa_opaque_values[] = {

{ LS_OPAQUE_TYPE_TE, "Traffic Engineering" },

{ LS_OPAQUE_TYPE_GRACE, "Graceful restart" },

{ LS_OPAQUE_TYPE_TE, "Traffic Engineering" },

{ LS_OPAQUE_TYPE_GRACE, "Graceful restart" },

+ { LS_OPAQUE_TYPE_RI, "Router Information" },

{ 0, NULL }

};

{ 0, NULL }

};

-static struct tok lsa_opaque_te_tlv_values[] = {

+static const struct tok lsa_opaque_te_tlv_values[] = {

{ LS_OPAQUE_TE_TLV_ROUTER, "Router Address" },

{ LS_OPAQUE_TE_TLV_LINK, "Link" },

{ 0, NULL }

};

{ LS_OPAQUE_TE_TLV_ROUTER, "Router Address" },

{ LS_OPAQUE_TE_TLV_LINK, "Link" },

{ 0, NULL }

};

-static struct tok lsa_opaque_te_link_tlv_subtlv_values[] = {

+static const struct tok lsa_opaque_te_link_tlv_subtlv_values[] = {

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE, "Link Type" },

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID, "Link ID" },

{ LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP, "Local Interface IP address" },

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE, "Link Type" },

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID, "Link ID" },

{ LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP, "Local Interface IP address" },

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE, "Link Protection Type" },

{ LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR, "Interface Switching Capability" },

{ LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP, "Shared Risk Link Group" },

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE, "Link Protection Type" },

{ LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR, "Interface Switching Capability" },

{ LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP, "Shared Risk Link Group" },

+ { LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS, "Bandwidth Constraints" },

{ 0, NULL }

};

{ 0, NULL }

};

-#define LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_PTP 1 /* rfc3630 */

-#define LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_MA 2 /* rfc3630 */

+static const struct tok lsa_opaque_grace_tlv_values[] = {

+ { LS_OPAQUE_GRACE_TLV_PERIOD, "Grace Period" },

+ { LS_OPAQUE_GRACE_TLV_REASON, "Graceful restart Reason" },

+ { LS_OPAQUE_GRACE_TLV_INT_ADDRESS, "IPv4 interface address" },

+ { 0, NULL }

+};

+

+static const struct tok lsa_opaque_grace_tlv_reason_values[] = {

+ { LS_OPAQUE_GRACE_TLV_REASON_UNKNOWN, "Unknown" },

+ { LS_OPAQUE_GRACE_TLV_REASON_SW_RESTART, "Software Restart" },

+ { LS_OPAQUE_GRACE_TLV_REASON_SW_UPGRADE, "Software Reload/Upgrade" },

+ { LS_OPAQUE_GRACE_TLV_REASON_CP_SWITCH, "Control Processor Switch" },

+ { 0, NULL }

+};

-static struct tok lsa_opaque_te_tlv_link_type_sub_tlv_values[] = {

+static const struct tok lsa_opaque_te_tlv_link_type_sub_tlv_values[] = {

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_PTP, "Point-to-point" },

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_MA, "Multi-Access" },

{ 0, NULL }

};

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_PTP, "Point-to-point" },

{ LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_MA, "Multi-Access" },

{ 0, NULL }

};

-static char tstr[] = " [|ospf]";

+static const struct tok lsa_opaque_ri_tlv_values[] = {

+ { LS_OPAQUE_RI_TLV_CAP, "Router Capabilities" },

+ { 0, NULL }

+};

+

+static const struct tok lsa_opaque_ri_tlv_cap_values[] = {

+ { 1, "Reserved" },

+ { 2, "Reserved" },

+ { 4, "Reserved" },

+ { 8, "Reserved" },

+ { 16, "graceful restart capable" },

+ { 32, "graceful restart helper" },

+ { 64, "Stub router support" },

+ { 128, "Traffic engineering" },

+ { 256, "p2p over LAN" },

+ { 512, "path computation server" },

+ { 0, NULL }

+};

+

+static const struct tok ospf_lls_tlv_values[] = {

+ { OSPF_LLS_EO, "Extended Options" },

+ { OSPF_LLS_MD5, "MD5 Authentication" },

+ { 0, NULL }

+};

+

+static const struct tok ospf_lls_eo_options[] = {

+ { OSPF_LLS_EO_LR, "LSDB resync" },

+ { OSPF_LLS_EO_RS, "Restart" },

+ { 0, NULL }

+};

+

+int

+ospf_print_grace_lsa(netdissect_options *ndo,

+ const uint8_t *tptr, u_int ls_length)

+{

+ u_int tlv_type, tlv_length;

+

+ while (ls_length > 0) {

+ ND_TCHECK2(*tptr, 4);

+ if (ls_length < 4) {

+ ND_PRINT((ndo, "\n\t Remaining LS length %u < 4", ls_length));

+ return -1;

+ }

+ tlv_type = EXTRACT_16BITS(tptr);

+ tlv_length = EXTRACT_16BITS(tptr+2);

+ tptr+=4;

+ ls_length-=4;

+

+ ND_PRINT((ndo, "\n\t %s TLV (%u), length %u, value: ",

+ tok2str(lsa_opaque_grace_tlv_values,"unknown",tlv_type),

+ tlv_type,

+ tlv_length));

+

+ if (tlv_length > ls_length) {

+ ND_PRINT((ndo, "\n\t Bogus length %u > %u", tlv_length,

+ ls_length));

+ return -1;

+ }

+

+ /* Infinite loop protection. */

+ if (tlv_type == 0 || tlv_length ==0) {

+ return -1;

+ }

+

+ ND_TCHECK2(*tptr, tlv_length);

+ switch(tlv_type) {

+

+ case LS_OPAQUE_GRACE_TLV_PERIOD:

+ if (tlv_length != 4) {

+ ND_PRINT((ndo, "\n\t Bogus length %u != 4", tlv_length));

+ return -1;

+ }

+ ND_PRINT((ndo, "%us", EXTRACT_32BITS(tptr)));

+ break;

+

+ case LS_OPAQUE_GRACE_TLV_REASON:

+ if (tlv_length != 1) {

+ ND_PRINT((ndo, "\n\t Bogus length %u != 1", tlv_length));

+ return -1;

+ }

+ ND_PRINT((ndo, "%s (%u)",

+ tok2str(lsa_opaque_grace_tlv_reason_values, "Unknown", *tptr),

+ *tptr));

+ break;

+

+ case LS_OPAQUE_GRACE_TLV_INT_ADDRESS:

+ if (tlv_length != 4) {

+ ND_PRINT((ndo, "\n\t Bogus length %u != 4", tlv_length));

+ return -1;

+ }

+ ND_PRINT((ndo, "%s", ipaddr_string(ndo, tptr)));

+ break;

+

+ default:

+ if (ndo->ndo_vflag <= 1) {

+ if (!print_unknown_data(ndo, tptr, "\n\t ", tlv_length))

+ return -1;

+ }

+ break;

+

+ }

+ /* in OSPF everything has to be 32-bit aligned, including TLVs */

+ if (tlv_length%4 != 0)

+ tlv_length+=4-(tlv_length%4);

+ ls_length-=tlv_length;

+ tptr+=tlv_length;

+ }

+

+ return 0;

+trunc:

+ return -1;

+}

+

+int

+ospf_print_te_lsa(netdissect_options *ndo,

+ const uint8_t *tptr, u_int ls_length)

+{

+ u_int tlv_type, tlv_length, subtlv_type, subtlv_length;

+ u_int priority_level, te_class, count_srlg;

+ union { /* int to float conversion buffer for several subTLVs */

+ float f;

+ uint32_t i;

+ } bw;

+

+ while (ls_length != 0) {

+ ND_TCHECK2(*tptr, 4);

+ if (ls_length < 4) {

+ ND_PRINT((ndo, "\n\t Remaining LS length %u < 4", ls_length));

+ return -1;

+ }

+ tlv_type = EXTRACT_16BITS(tptr);

+ tlv_length = EXTRACT_16BITS(tptr+2);

+ tptr+=4;

+ ls_length-=4;

+

+ ND_PRINT((ndo, "\n\t %s TLV (%u), length: %u",

+ tok2str(lsa_opaque_te_tlv_values,"unknown",tlv_type),

+ tlv_type,

+ tlv_length));

+

+ if (tlv_length > ls_length) {

+ ND_PRINT((ndo, "\n\t Bogus length %u > %u", tlv_length,

+ ls_length));

+ return -1;

+ }

+

+ /* Infinite loop protection. */

+ if (tlv_type == 0 || tlv_length ==0) {

+ return -1;

+ }

-#ifdef WIN32

-#define inline __inline

-#endif /* WIN32 */

+ switch(tlv_type) {

+ case LS_OPAQUE_TE_TLV_LINK:

+ while (tlv_length >= sizeof(subtlv_type) + sizeof(subtlv_length)) {

+ if (tlv_length < 4) {

+ ND_PRINT((ndo, "\n\t Remaining TLV length %u < 4",

+ tlv_length));

+ return -1;

+ }

+ ND_TCHECK2(*tptr, 4);

+ subtlv_type = EXTRACT_16BITS(tptr);

+ subtlv_length = EXTRACT_16BITS(tptr+2);

+ tptr+=4;

+ tlv_length-=4;

+

+ /* Infinite loop protection */

+ if (subtlv_type == 0 || subtlv_length == 0)

+ goto invalid;

+

+ ND_PRINT((ndo, "\n\t %s subTLV (%u), length: %u",

+ tok2str(lsa_opaque_te_link_tlv_subtlv_values,"unknown",subtlv_type),

+ subtlv_type,

+ subtlv_length));

+

+ ND_TCHECK2(*tptr, subtlv_length);

+ switch(subtlv_type) {

+ case LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP:

+ if (subtlv_length != 4) {

+ ND_PRINT((ndo, " != 4"));

+ goto invalid;

+ }

+ ND_PRINT((ndo, ", 0x%08x", EXTRACT_32BITS(tptr)));

+ break;

+ case LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID:

+ case LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID:

+ if (subtlv_length != 4 && subtlv_length != 8) {

+ ND_PRINT((ndo, " != 4 && != 8"));

+ goto invalid;

+ }

+ ND_PRINT((ndo, ", %s (0x%08x)",

+ ipaddr_string(ndo, tptr),

+ EXTRACT_32BITS(tptr)));

+ if (subtlv_length == 8) /* rfc4203 */

+ ND_PRINT((ndo, ", %s (0x%08x)",

+ ipaddr_string(ndo, tptr+4),

+ EXTRACT_32BITS(tptr + 4)));

+ break;

+ case LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP:

+ case LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP:

+ if (subtlv_length != 4) {

+ ND_PRINT((ndo, " != 4"));

+ goto invalid;

+ }

+ ND_PRINT((ndo, ", %s", ipaddr_string(ndo, tptr)));

+ break;

+ case LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW:

+ case LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW:

+ if (subtlv_length != 4) {

+ ND_PRINT((ndo, " != 4"));

+ goto invalid;

+ }

+ bw.i = EXTRACT_32BITS(tptr);

+ ND_PRINT((ndo, ", %.3f Mbps", bw.f * 8 / 1000000));

+ break;

+ case LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW:

+ if (subtlv_length != 32) {

+ ND_PRINT((ndo, " != 32"));

+ goto invalid;

+ }

+ for (te_class = 0; te_class < 8; te_class++) {

+ bw.i = EXTRACT_32BITS(tptr+te_class*4);

+ ND_PRINT((ndo, "\n\t\tTE-Class %u: %.3f Mbps",

+ te_class,

+ bw.f * 8 / 1000000));

+ }

+ break;

+ case LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS:

+ if (subtlv_length < 4) {

+ ND_PRINT((ndo, " < 4"));

+ goto invalid;

+ }

+ /* BC Model Id (1 octet) + Reserved (3 octets) */

+ ND_PRINT((ndo, "\n\t\tBandwidth Constraints Model ID: %s (%u)",

+ tok2str(diffserv_te_bc_values, "unknown", *tptr),

+ *tptr));

+ if (subtlv_length % 4 != 0) {

+ ND_PRINT((ndo, "\n\t\tlength %u != N x 4", subtlv_length));

+ goto invalid;

+ }

+ if (subtlv_length > 36) {

+ ND_PRINT((ndo, "\n\t\tlength %u > 36", subtlv_length));

+ goto invalid;

+ }

+ /* decode BCs until the subTLV ends */

+ for (te_class = 0; te_class < (subtlv_length-4)/4; te_class++) {

+ bw.i = EXTRACT_32BITS(tptr+4+te_class*4);

+ ND_PRINT((ndo, "\n\t\t Bandwidth constraint CT%u: %.3f Mbps",

+ te_class,

+ bw.f * 8 / 1000000));

+ }

+ break;

+ case LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC:

+ if (subtlv_length != 4) {

+ ND_PRINT((ndo, " != 4"));

+ goto invalid;

+ }

+ ND_PRINT((ndo, ", Metric %u", EXTRACT_32BITS(tptr)));

+ break;

+ case LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE:

+ /* Protection Cap (1 octet) + Reserved ((3 octets) */

+ if (subtlv_length != 4) {

+ ND_PRINT((ndo, " != 4"));

+ goto invalid;

+ }

+ ND_PRINT((ndo, ", %s",

+ bittok2str(gmpls_link_prot_values, "none", *tptr)));

+ break;

+ case LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR:

+ if (subtlv_length < 36) {

+ ND_PRINT((ndo, " < 36"));

+ goto invalid;

+ }

+ /* Switching Cap (1 octet) + Encoding (1) + Reserved (2) */

+ ND_PRINT((ndo, "\n\t\tInterface Switching Capability: %s",

+ tok2str(gmpls_switch_cap_values, "Unknown", *(tptr))));

+ ND_PRINT((ndo, "\n\t\tLSP Encoding: %s\n\t\tMax LSP Bandwidth:",

+ tok2str(gmpls_encoding_values, "Unknown", *(tptr + 1))));

+ for (priority_level = 0; priority_level < 8; priority_level++) {

+ bw.i = EXTRACT_32BITS(tptr+4+(priority_level*4));

+ ND_PRINT((ndo, "\n\t\t priority level %d: %.3f Mbps",

+ priority_level,

+ bw.f * 8 / 1000000));

+ }

+ break;

+ case LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE:

+ if (subtlv_length != 1) {

+ ND_PRINT((ndo, " != 1"));

+ goto invalid;

+ }

+ ND_PRINT((ndo, ", %s (%u)",

+ tok2str(lsa_opaque_te_tlv_link_type_sub_tlv_values,"unknown",*tptr),

+ *tptr));

+ break;

-static int ospf_print_lshdr(const struct lsa_hdr *);

-static const u_char *ospf_print_lsa(const struct lsa *);

-static int ospf_decode_v2(const struct ospfhdr *, const u_char *);

+ case LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP:

+ if (subtlv_length % 4 != 0) {

+ ND_PRINT((ndo, " != N x 4"));

+ goto invalid;

+ }

+ count_srlg = subtlv_length / 4;

+ if (count_srlg != 0)

+ ND_PRINT((ndo, "\n\t\t Shared risk group: "));

+ while (count_srlg > 0) {

+ bw.i = EXTRACT_32BITS(tptr);

+ ND_PRINT((ndo, "%d", bw.i));

+ tptr+=4;

+ count_srlg--;

+ if (count_srlg > 0)

+ ND_PRINT((ndo, ", "));

+ }

+ break;

+

+ default:

+ if (ndo->ndo_vflag <= 1) {

+ if (!print_unknown_data(ndo, tptr, "\n\t\t", subtlv_length))

+ return -1;

+ }

+ break;

+ }

+ /* in OSPF everything has to be 32-bit aligned, including subTLVs */

+ if (subtlv_length%4 != 0)

+ subtlv_length+=4-(subtlv_length%4);

+

+ tlv_length-=subtlv_length;

+ tptr+=subtlv_length;

+

+ }

+ break;

+

+ case LS_OPAQUE_TE_TLV_ROUTER:

+ if (tlv_length < 4) {

+ ND_PRINT((ndo, "\n\t TLV length %u < 4", tlv_length));

+ return -1;

+ }

+ ND_TCHECK2(*tptr, 4);

+ ND_PRINT((ndo, ", %s", ipaddr_string(ndo, tptr)));

+ break;

+

+ default:

+ if (ndo->ndo_vflag <= 1) {

+ if (!print_unknown_data(ndo, tptr, "\n\t ", tlv_length))

+ return -1;

+ }

+ break;

+ }

+ /* in OSPF everything has to be 32-bit aligned, including TLVs */

+ if (tlv_length%4 != 0)

+ tlv_length+=4-(tlv_length%4);

+ ls_length-=tlv_length;

+ tptr+=tlv_length;

+ }

+ return 0;

+trunc:

+ return -1;

+invalid:

+ ND_PRINT((ndo, "%s", istr));

+ return -1;

+}

static int

-ospf_print_lshdr(register const struct lsa_hdr *lshp)

+ospf_print_lshdr(netdissect_options *ndo,

+ register const struct lsa_hdr *lshp)

{

u_int ls_length;

{

u_int ls_length;

- TCHECK(lshp->ls_length);

+ ND_TCHECK(lshp->ls_length);

ls_length = EXTRACT_16BITS(&lshp->ls_length);

if (ls_length < sizeof(struct lsa_hdr)) {

ls_length = EXTRACT_16BITS(&lshp->ls_length);

if (ls_length < sizeof(struct lsa_hdr)) {

- printf("\n\t Bogus length %u < %lu", ls_length,

- (unsigned long)sizeof(struct lsa_hdr));

+ ND_PRINT((ndo, "\n\t Bogus length %u < header (%lu)", ls_length,

+ (unsigned long)sizeof(struct lsa_hdr)));

return(-1);

}

return(-1);

}

- TCHECK(lshp->ls_seq); /* XXX - ls_length check checked this */

- printf("\n\t Advertising Router: %s, seq 0x%08x, age %us, length: %u",

- ipaddr_string(&lshp->ls_router),

- EXTRACT_32BITS(&lshp->ls_seq),

- EXTRACT_16BITS(&lshp->ls_age),

- ls_length-(u_int)sizeof(struct lsa_hdr));

+ ND_TCHECK(lshp->ls_seq); /* XXX - ls_length check checked this */

+ ND_PRINT((ndo, "\n\t Advertising Router %s, seq 0x%08x, age %us, length %u",

+ ipaddr_string(ndo, &lshp->ls_router),

+ EXTRACT_32BITS(&lshp->ls_seq),

+ EXTRACT_16BITS(&lshp->ls_age),

+ ls_length - (u_int)sizeof(struct lsa_hdr)));

- TCHECK(lshp->ls_type); /* XXX - ls_length check checked this */

+ ND_TCHECK(lshp->ls_type); /* XXX - ls_length check checked this */

switch (lshp->ls_type) {

- /* the LSA header for opaque LSAs was slightly changed */

+ /* the LSA header for opaque LSAs was slightly changed */

case LS_TYPE_OPAQUE_LL:

case LS_TYPE_OPAQUE_AL:

case LS_TYPE_OPAQUE_DW:

case LS_TYPE_OPAQUE_LL:

case LS_TYPE_OPAQUE_AL:

case LS_TYPE_OPAQUE_DW:

- printf("\n\t %s LSA (%d), Opaque-Type: %s LSA (%u), Opaque-ID: %u",

+ ND_PRINT((ndo, "\n\t %s LSA (%d), Opaque-Type %s LSA (%u), Opaque-ID %u",

tok2str(lsa_values,"unknown",lshp->ls_type),

lshp->ls_type,

tok2str(lsa_values,"unknown",lshp->ls_type),

lshp->ls_type,

*(&lshp->un_lsa_id.opaque_field.opaque_type)),

*(&lshp->un_lsa_id.opaque_field.opaque_type),

EXTRACT_24BITS(&lshp->un_lsa_id.opaque_field.opaque_id)

*(&lshp->un_lsa_id.opaque_field.opaque_type)),

*(&lshp->un_lsa_id.opaque_field.opaque_type),

EXTRACT_24BITS(&lshp->un_lsa_id.opaque_field.opaque_id)

-

- );

+

+ ));

break;

- /* all other LSA types use regular style LSA headers */

- default:

- printf("\n\t %s LSA (%d), LSA-ID: %s",

+ /* all other LSA types use regular style LSA headers */

+ default:

+ ND_PRINT((ndo, "\n\t %s LSA (%d), LSA-ID: %s",

tok2str(lsa_values,"unknown",lshp->ls_type),

lshp->ls_type,

tok2str(lsa_values,"unknown",lshp->ls_type),

lshp->ls_type,

- ipaddr_string(&lshp->un_lsa_id.lsa_id));

+ ipaddr_string(ndo, &lshp->un_lsa_id.lsa_id)));

break;

}

break;

}

- TCHECK(lshp->ls_options); /* XXX - ls_length check checked this */

- printf("\n\t Options: [%s]", bittok2str(ospf_option_values,"none",lshp->ls_options));

+ ND_TCHECK(lshp->ls_options); /* XXX - ls_length check checked this */

+ ND_PRINT((ndo, "\n\t Options: [%s]", bittok2str(ospf_option_values, "none", lshp->ls_options)));

return (ls_length);

trunc:

return (-1);

}

return (ls_length);

trunc:

return (-1);

}

+/* draft-ietf-ospf-mt-09 */

+static const struct tok ospf_topology_values[] = {

+ { 0, "default " },

+ { 1, "multicast " },

+ { 2, "management " },

+ { 0, NULL }

+};

+

+/*

+ * Print all the per-topology metrics.

+ */

+static void

+ospf_print_tos_metrics(netdissect_options *ndo,

+ const union un_tos *tos)

+{

+ int metric_count;

+ int toscount;

+

+ toscount = tos->link.link_tos_count+1;

+ metric_count = 0;

+

+ /*

+ * All but the first metric contain a valid topology id.

+ */

+ while (toscount) {

+ ND_PRINT((ndo, "\n\t\ttopology %s(%u), metric %u",

+ tok2str(ospf_topology_values, "",

+ metric_count ? tos->metrics.tos_type : 0),

+ metric_count ? tos->metrics.tos_type : 0,

+ EXTRACT_16BITS(&tos->metrics.tos_metric)));

+ metric_count++;

+ tos++;

+ toscount--;

+ }

+}

+

/*

* Print a single link state advertisement. If truncated or if LSA length

* field is less than the length of the LSA header, return NULl, else

* return pointer to data past end of LSA.

*/

/*

* Print a single link state advertisement. If truncated or if LSA length

* field is less than the length of the LSA header, return NULl, else

* return pointer to data past end of LSA.

*/

-static const u_int8_t *

-ospf_print_lsa(register const struct lsa *lsap)

+static const uint8_t *

+ospf_print_lsa(netdissect_options *ndo,

+ register const struct lsa *lsap)

{

- register const u_int8_t *ls_end;

+ register const uint8_t *ls_end;

register const struct rlalink *rlp;

- register const struct tos_metric *tosp;

register const struct in_addr *ap;

register const struct aslametric *almp;

register const struct mcla *mcp;

register const struct in_addr *ap;

register const struct aslametric *almp;

register const struct mcla *mcp;

- register const u_int32_t *lp;

- register int j, k, tlv_type, tlv_length, subtlv_type, subtlv_length, priority_level;

+ register const uint32_t *lp;

+ register int j, tlv_type, tlv_length, topology;

register int ls_length;

- const u_int8_t *tptr;

- int count_srlg;

- union { /* int to float conversion buffer for several subTLVs */

- float f;

- u_int32_t i;

- } bw;

-

- tptr = (u_int8_t *)lsap->lsa_un.un_unknown; /* squelch compiler warnings */

- ls_length = ospf_print_lshdr(&lsap->ls_hdr);

+ const uint8_t *tptr;

+

+ tptr = (const uint8_t *)lsap->lsa_un.un_unknown; /* squelch compiler warnings */

+ ls_length = ospf_print_lshdr(ndo, &lsap->ls_hdr);

if (ls_length == -1)

return(NULL);

if (ls_length == -1)

return(NULL);

- ls_end = (u_int8_t *)lsap + ls_length;

+ ls_end = (const uint8_t *)lsap + ls_length;

ls_length -= sizeof(struct lsa_hdr);

switch (lsap->ls_hdr.ls_type) {

case LS_TYPE_ROUTER:

ls_length -= sizeof(struct lsa_hdr);

switch (lsap->ls_hdr.ls_type) {

case LS_TYPE_ROUTER:

- TCHECK(lsap->lsa_un.un_rla.rla_flags);

- printf("\n\t Router LSA Options: [%s]", bittok2str(ospf_rla_flag_values,"none",lsap->lsa_un.un_rla.rla_flags));

+ ND_TCHECK(lsap->lsa_un.un_rla.rla_flags);

+ ND_PRINT((ndo, "\n\t Router LSA Options: [%s]",

+ bittok2str(ospf_rla_flag_values, "none", lsap->lsa_un.un_rla.rla_flags)));

- TCHECK(lsap->lsa_un.un_rla.rla_count);

+ ND_TCHECK(lsap->lsa_un.un_rla.rla_count);

j = EXTRACT_16BITS(&lsap->lsa_un.un_rla.rla_count);

- TCHECK(lsap->lsa_un.un_rla.rla_link);

+ ND_TCHECK(lsap->lsa_un.un_rla.rla_link);

rlp = lsap->lsa_un.un_rla.rla_link;

while (j--) {

rlp = lsap->lsa_un.un_rla.rla_link;

while (j--) {

- TCHECK(*rlp);

- switch (rlp->link_type) {

+ ND_TCHECK(*rlp);

+ switch (rlp->un_tos.link.link_type) {

case RLA_TYPE_VIRTUAL:

- printf("\n\t Virtual Link: Neighbor Router-ID: %s, Interface Address: %s",

- ipaddr_string(&rlp->link_id),

- ipaddr_string(&rlp->link_data));

- break;

+ ND_PRINT((ndo, "\n\t Virtual Link: Neighbor Router-ID: %s, Interface Address: %s",

+ ipaddr_string(ndo, &rlp->link_id),

+ ipaddr_string(ndo, &rlp->link_data)));

+ break;

case RLA_TYPE_ROUTER:

- printf("\n\t Neighbor Router-ID: %s, Interface Address: %s",

- ipaddr_string(&rlp->link_id),

- ipaddr_string(&rlp->link_data));

+ ND_PRINT((ndo, "\n\t Neighbor Router-ID: %s, Interface Address: %s",

+ ipaddr_string(ndo, &rlp->link_id),

+ ipaddr_string(ndo, &rlp->link_data)));

break;

case RLA_TYPE_TRANSIT:

break;

case RLA_TYPE_TRANSIT:

- printf("\n\t Neighbor Network-ID: %s, Interface Address: %s",

- ipaddr_string(&rlp->link_id),

- ipaddr_string(&rlp->link_data));

+ ND_PRINT((ndo, "\n\t Neighbor Network-ID: %s, Interface Address: %s",

+ ipaddr_string(ndo, &rlp->link_id),

+ ipaddr_string(ndo, &rlp->link_data)));

break;

case RLA_TYPE_STUB:

break;

case RLA_TYPE_STUB:

- printf("\n\t Stub Network: %s, Mask: %s",

- ipaddr_string(&rlp->link_id),

- ipaddr_string(&rlp->link_data));

+ ND_PRINT((ndo, "\n\t Stub Network: %s, Mask: %s",

+ ipaddr_string(ndo, &rlp->link_id),

+ ipaddr_string(ndo, &rlp->link_data)));

break;

default:

break;

default:

- printf("\n\t Unknown Router Link Type (%u)",

- rlp->link_type);

+ ND_PRINT((ndo, "\n\t Unknown Router Link Type (%u)",

+ rlp->un_tos.link.link_type));

return (ls_end);

}

return (ls_end);

}

- printf(", tos 0, metric: %d", EXTRACT_16BITS(&rlp->link_tos0metric));

- tosp = (struct tos_metric *)

- ((sizeof rlp->link_tos0metric) + (u_char *) rlp);

- for (k = 0; k < (int) rlp->link_toscount; ++k, ++tosp) {

- TCHECK(*tosp);

- printf(", tos %d, metric: %d",

- tosp->tos_type,

- EXTRACT_16BITS(&tosp->tos_metric));

- }

- rlp = (struct rlalink *)((u_char *)(rlp + 1) +

- ((rlp->link_toscount) * sizeof(*tosp)));

+

+ ospf_print_tos_metrics(ndo, &rlp->un_tos);

+

+ rlp = (const struct rlalink *)((const u_char *)(rlp + 1) +

+ ((rlp->un_tos.link.link_tos_count) * sizeof(union un_tos)));

}

break;

case LS_TYPE_NETWORK:

}

break;

case LS_TYPE_NETWORK:

- TCHECK(lsap->lsa_un.un_nla.nla_mask);

- printf("\n\t Mask %s\n\t Connected Routers:",

- ipaddr_string(&lsap->lsa_un.un_nla.nla_mask));

+ ND_TCHECK(lsap->lsa_un.un_nla.nla_mask);

+ ND_PRINT((ndo, "\n\t Mask %s\n\t Connected Routers:",

+ ipaddr_string(ndo, &lsap->lsa_un.un_nla.nla_mask)));

ap = lsap->lsa_un.un_nla.nla_router;

- while ((u_char *)ap < ls_end) {

- TCHECK(*ap);

- printf("\n\t %s", ipaddr_string(ap));

+ while ((const u_char *)ap < ls_end) {

+ ND_TCHECK(*ap);

+ ND_PRINT((ndo, "\n\t %s", ipaddr_string(ndo, ap)));

++ap;

}

break;

case LS_TYPE_SUM_IP:

++ap;

}

break;

case LS_TYPE_SUM_IP:

- TCHECK(lsap->lsa_un.un_nla.nla_mask);

- printf("\n\t Mask %s",

- ipaddr_string(&lsap->lsa_un.un_sla.sla_mask));

- TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);

+ ND_TCHECK(lsap->lsa_un.un_nla.nla_mask);

+ ND_PRINT((ndo, "\n\t Mask %s",

+ ipaddr_string(ndo, &lsap->lsa_un.un_sla.sla_mask)));

+ ND_TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);

lp = lsap->lsa_un.un_sla.sla_tosmetric;

- /* suppress tos if its not supported */

- if(!((lsap->ls_hdr.ls_options)&OSPF_OPTION_T)) {

- printf(", metric: %u", EXTRACT_32BITS(lp)&SLA_MASK_METRIC);

- break;

- }

- while ((u_char *)lp < ls_end) {

- register u_int32_t ul;

+ while ((const u_char *)lp < ls_end) {

+ register uint32_t ul;

- TCHECK(*lp);

+ ND_TCHECK(*lp);

ul = EXTRACT_32BITS(lp);

- printf(", tos %d metric %d",

- (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS,

- ul & SLA_MASK_METRIC);

+ topology = (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS;

+ ND_PRINT((ndo, "\n\t\ttopology %s(%u) metric %d",

+ tok2str(ospf_topology_values, "", topology),

+ topology,

+ ul & SLA_MASK_METRIC));

++lp;

}

break;

case LS_TYPE_SUM_ABR:

++lp;

}

break;

case LS_TYPE_SUM_ABR:

- TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);

+ ND_TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);

lp = lsap->lsa_un.un_sla.sla_tosmetric;

- /* suppress tos if its not supported */

- if(!((lsap->ls_hdr.ls_options)&OSPF_OPTION_T)) {

- printf(", metric: %u", EXTRACT_32BITS(lp)&SLA_MASK_METRIC);

- break;

- }

- while ((u_char *)lp < ls_end) {

- register u_int32_t ul;

+ while ((const u_char *)lp < ls_end) {

+ register uint32_t ul;

- TCHECK(*lp);

+ ND_TCHECK(*lp);

ul = EXTRACT_32BITS(lp);

- printf(", tos %d metric %d",

- (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS,

- ul & SLA_MASK_METRIC);

+ topology = (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS;

+ ND_PRINT((ndo, "\n\t\ttopology %s(%u) metric %d",

+ tok2str(ospf_topology_values, "", topology),

+ topology,

+ ul & SLA_MASK_METRIC));

++lp;

}

break;

case LS_TYPE_ASE:

++lp;

}

break;

case LS_TYPE_ASE:

- TCHECK(lsap->lsa_un.un_nla.nla_mask);

- printf("\n\t Mask %s",

- ipaddr_string(&lsap->lsa_un.un_asla.asla_mask));

+ case LS_TYPE_NSSA: /* fall through - those LSAs share the same format */

+ ND_TCHECK(lsap->lsa_un.un_nla.nla_mask);

+ ND_PRINT((ndo, "\n\t Mask %s",

+ ipaddr_string(ndo, &lsap->lsa_un.un_asla.asla_mask)));

- TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);

+ ND_TCHECK(lsap->lsa_un.un_sla.sla_tosmetric);

almp = lsap->lsa_un.un_asla.asla_metric;

- while ((u_char *)almp < ls_end) {

- register u_int32_t ul;

+ while ((const u_char *)almp < ls_end) {

+ register uint32_t ul;

- TCHECK(almp->asla_tosmetric);

+ ND_TCHECK(almp->asla_tosmetric);

ul = EXTRACT_32BITS(&almp->asla_tosmetric);

- printf(", type %d, tos %d metric:",

- (ul & ASLA_FLAG_EXTERNAL) ? 2 : 1,

- (ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS);

- if ((ul & ASLA_MASK_METRIC)==0xffffff)

- printf(" infinite");

- else

- printf(" %d", (ul & ASLA_MASK_METRIC));

-

- TCHECK(almp->asla_forward);

+ topology = ((ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS);

+ ND_PRINT((ndo, "\n\t\ttopology %s(%u), type %d, metric",

+ tok2str(ospf_topology_values, "", topology),

+ topology,

+ (ul & ASLA_FLAG_EXTERNAL) ? 2 : 1));

+ if ((ul & ASLA_MASK_METRIC) == 0xffffff)

+ ND_PRINT((ndo, " infinite"));

+ else

+ ND_PRINT((ndo, " %d", (ul & ASLA_MASK_METRIC)));

+

+ ND_TCHECK(almp->asla_forward);

if (almp->asla_forward.s_addr) {

- printf(", forward %s",

- ipaddr_string(&almp->asla_forward));

+ ND_PRINT((ndo, ", forward %s", ipaddr_string(ndo, &almp->asla_forward)));

}

- TCHECK(almp->asla_tag);

+ ND_TCHECK(almp->asla_tag);

if (almp->asla_tag.s_addr) {

- printf(", tag %s",

- ipaddr_string(&almp->asla_tag));

+ ND_PRINT((ndo, ", tag %s", ipaddr_string(ndo, &almp->asla_tag)));

}

++almp;

}

++almp;

}

case LS_TYPE_GROUP:

/* Multicast extensions as of 23 July 1991 */

mcp = lsap->lsa_un.un_mcla;

case LS_TYPE_GROUP:

/* Multicast extensions as of 23 July 1991 */

mcp = lsap->lsa_un.un_mcla;

- while ((u_char *)mcp < ls_end) {

- TCHECK(mcp->mcla_vid);

+ while ((const u_char *)mcp < ls_end) {

+ ND_TCHECK(mcp->mcla_vid);

switch (EXTRACT_32BITS(&mcp->mcla_vtype)) {

case MCLA_VERTEX_ROUTER:

switch (EXTRACT_32BITS(&mcp->mcla_vtype)) {

case MCLA_VERTEX_ROUTER:

- printf("\n\t Router Router-ID %s",

- ipaddr_string(&mcp->mcla_vid));

+ ND_PRINT((ndo, "\n\t Router Router-ID %s",

+ ipaddr_string(ndo, &mcp->mcla_vid)));

break;

case MCLA_VERTEX_NETWORK:

break;

case MCLA_VERTEX_NETWORK:

- printf("\n\t Network Designated Router %s",

- ipaddr_string(&mcp->mcla_vid));

+ ND_PRINT((ndo, "\n\t Network Designated Router %s",

+ ipaddr_string(ndo, &mcp->mcla_vid)));

break;

default:

break;

default:

- printf("\n\t unknown VertexType (%u)",

- EXTRACT_32BITS(&mcp->mcla_vtype));

+ ND_PRINT((ndo, "\n\t unknown VertexType (%u)",

+ EXTRACT_32BITS(&mcp->mcla_vtype)));

break;

}

++mcp;

break;

}

++mcp;

break;

case LS_TYPE_OPAQUE_LL: /* fall through */

break;

case LS_TYPE_OPAQUE_LL: /* fall through */

- case LS_TYPE_OPAQUE_AL:

+ case LS_TYPE_OPAQUE_AL:

case LS_TYPE_OPAQUE_DW:

switch (*(&lsap->ls_hdr.un_lsa_id.opaque_field.opaque_type)) {

case LS_TYPE_OPAQUE_DW:

switch (*(&lsap->ls_hdr.un_lsa_id.opaque_field.opaque_type)) {

- case LS_OPAQUE_TYPE_TE:

- if (!TTEST2(*tptr, 4))

- goto trunc;

-

- tptr = (u_int8_t *)(&lsap->lsa_un.un_te_lsa_tlv.type);

+ case LS_OPAQUE_TYPE_RI:

+ tptr = (const uint8_t *)(&lsap->lsa_un.un_ri_tlv.type);

while (ls_length != 0) {

+ ND_TCHECK2(*tptr, 4);

if (ls_length < 4) {

- printf("\n\t Remaining LS length %u < 4", ls_length);

+ ND_PRINT((ndo, "\n\t Remaining LS length %u < 4", ls_length));

return(ls_end);

}

tlv_type = EXTRACT_16BITS(tptr);

tlv_length = EXTRACT_16BITS(tptr+2);

tptr+=4;

ls_length-=4;

return(ls_end);

}

tlv_type = EXTRACT_16BITS(tptr);

tlv_length = EXTRACT_16BITS(tptr+2);

tptr+=4;

ls_length-=4;

-

- printf("\n\t %s TLV (%u), length: %u",

- tok2str(lsa_opaque_te_tlv_values,"unknown",tlv_type),

+

+ ND_PRINT((ndo, "\n\t %s TLV (%u), length: %u, value: ",

+ tok2str(lsa_opaque_ri_tlv_values,"unknown",tlv_type),

tlv_type,

- tlv_length);

+ tlv_length));

if (tlv_length > ls_length) {

- printf("\n\t Bogus length %u > %u", tlv_length,

- ls_length);

+ ND_PRINT((ndo, "\n\t Bogus length %u > %u", tlv_length,

+ ls_length));

return(ls_end);

}

return(ls_end);

}

- ls_length-=tlv_length;

+ ND_TCHECK2(*tptr, tlv_length);

switch(tlv_type) {

- case LS_OPAQUE_TE_TLV_LINK:

- while (tlv_length != 0) {

- if (tlv_length < 4) {

- printf("\n\t Remaining TLV length %u < 4",

- tlv_length);

- return(ls_end);

- }

- if (!TTEST2(*tptr, 4))

- goto trunc;

- subtlv_type = EXTRACT_16BITS(tptr);

- subtlv_length = EXTRACT_16BITS(tptr+2);

- tptr+=4;

- tlv_length-=4;

-

- printf("\n\t %s subTLV (%u), length: %u",

- tok2str(lsa_opaque_te_link_tlv_subtlv_values,"unknown",subtlv_type),

- subtlv_type,

- subtlv_length);

-

- if (!TTEST2(*tptr, subtlv_length))

- goto trunc;

- switch(subtlv_type) {

- case LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP:

- printf(", 0x%08x", EXTRACT_32BITS(tptr));

- break;

- case LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID:

- case LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID:

- printf(", %s (0x%08x)",

- ipaddr_string(tptr),

- EXTRACT_32BITS(tptr));

- if (subtlv_length == 8) /* draft-ietf-ccamp-ospf-gmpls-extensions */

- printf(", %s (0x%08x)",

- ipaddr_string(tptr+4),

- EXTRACT_32BITS(tptr+4));

- break;

- case LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP:

- case LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP:

- printf(", %s", ipaddr_string(tptr));

- break;

- case LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW:

- case LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW:

- bw.i = EXTRACT_32BITS(tptr);

- printf(", %.3f Mbps", bw.f*8/1000000 );

- break;

- case LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW:

- for (priority_level = 0; priority_level < 8; priority_level++) {

- bw.i = EXTRACT_32BITS(tptr+priority_level*4);

- printf("\n\t\tpriority level %d: %.3f Mbps",

- priority_level,

- bw.f*8/1000000 );

- }

- break;

- case LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC:

- printf(", Metric %u", EXTRACT_32BITS(tptr));

- break;

- case LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE:

- printf(", %s, Priority %u",

- bittok2str(gmpls_link_prot_values, "none", *tptr),

- *(tptr+1));

- break;

- case LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR:

- printf("\n\t\tInterface Switching Capability: %s",

- tok2str(gmpls_switch_cap_values, "Unknown", *(tptr)));

- printf("\n\t\tLSP Encoding: %s\n\t\tMax LSP Bandwidth:",

- tok2str(gmpls_encoding_values, "Unknown", *(tptr+1)));

- for (priority_level = 0; priority_level < 8; priority_level++) {

- bw.i = EXTRACT_32BITS(tptr+4+(priority_level*4));

- printf("\n\t\t priority level %d: %.3f Mbps",

- priority_level,

- bw.f*8/1000000 );

- }

- break;

- case LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE:

- printf(", %s (%u)",

- tok2str(lsa_opaque_te_tlv_link_type_sub_tlv_values,"unknown",*tptr),

- *tptr);

- break;

-

- case LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP:

- count_srlg = subtlv_length / 4;

- if (count_srlg != 0)

- printf("\n\t\t Shared risk group: ");

- while (count_srlg > 0) {

- bw.i = EXTRACT_32BITS(tptr);

- printf("%d",bw.i);

- tptr+=4;

- count_srlg--;

- if (count_srlg > 0)

- printf(", ");

- }

- break;

-

- default:

- if (vflag <= 1) {

- if(!print_unknown_data(tptr,"\n\t\t",subtlv_length))

- return(ls_end);

- }

- break;

- }

- /* in OSPF everything has to be 32-bit aligned, including TLVs */

- if (subtlv_length%4 != 0)

- subtlv_length+=4-(subtlv_length%4);

-

- tlv_length-=subtlv_length;

- tptr+=subtlv_length;

-

+

+ case LS_OPAQUE_RI_TLV_CAP:

+ if (tlv_length != 4) {

+ ND_PRINT((ndo, "\n\t Bogus length %u != 4", tlv_length));

+ return(ls_end);

}

+ ND_PRINT((ndo, "Capabilities: %s",

+ bittok2str(lsa_opaque_ri_tlv_cap_values, "Unknown", EXTRACT_32BITS(tptr))));

break;

-

- case LS_OPAQUE_TE_TLV_ROUTER:

- printf(", %s", ipaddr_string(tptr));

- break;

-

default:

- if (vflag <= 1) {

- if(!print_unknown_data(tptr,"\n\t ",tlv_length))

+ if (ndo->ndo_vflag <= 1) {

+ if (!print_unknown_data(ndo, tptr, "\n\t ", tlv_length))

return(ls_end);

}

break;

return(ls_end);

}

break;

+

}

tptr+=tlv_length;

}

tptr+=tlv_length;

- }

+ ls_length-=tlv_length;

+ }

break;

- }

- break;

- default:

- if (vflag <= 1) {

- if(!print_unknown_data((u_int8_t *)lsap->lsa_un.un_unknown,

- "\n\t ", ls_length))

+

+ case LS_OPAQUE_TYPE_GRACE:

+ if (ospf_print_grace_lsa(ndo, (const uint8_t *)(&lsap->lsa_un.un_grace_tlv.type),

+ ls_length) == -1) {

return(ls_end);

- }

- break;

+ }

+ break;

+

+ case LS_OPAQUE_TYPE_TE:

+ if (ospf_print_te_lsa(ndo, (const uint8_t *)(&lsap->lsa_un.un_te_lsa_tlv.type),

+ ls_length) == -1) {

+ return(ls_end);

+ }

+ break;

+

+ default:

+ if (ndo->ndo_vflag <= 1) {

+ if (!print_unknown_data(ndo, (const uint8_t *)lsap->lsa_un.un_unknown,

+ "\n\t ", ls_length))

+ return(ls_end);

+ }

+ break;

+ }

}

/* do we want to see an additionally hexdump ? */

}

/* do we want to see an additionally hexdump ? */

- if (vflag> 1)

- if(!print_unknown_data((u_int8_t *)lsap->lsa_un.un_unknown,

+ if (ndo->ndo_vflag> 1)

+ if (!print_unknown_data(ndo, (const uint8_t *)lsap->lsa_un.un_unknown,

"\n\t ", ls_length)) {

return(ls_end);

}

"\n\t ", ls_length)) {

return(ls_end);

}

-

+

return (ls_end);

trunc:

return (NULL);

}

static int

return (ls_end);

trunc:

return (NULL);

}

static int

-ospf_decode_v2(register const struct ospfhdr *op,

- register const u_char *dataend)

+ospf_decode_lls(netdissect_options *ndo,

+ register const struct ospfhdr *op, register u_int length)

+{

+ register const u_char *dptr;

+ register const u_char *dataend;

+ register u_int length2;

+ register uint16_t lls_type, lls_len;

+ register uint32_t lls_flags;

+

+ switch (op->ospf_type) {

+

+ case OSPF_TYPE_HELLO:

+ if (!(op->ospf_hello.hello_options & OSPF_OPTION_L))

+ return (0);

+ break;

+

+ case OSPF_TYPE_DD:

+ if (!(op->ospf_db.db_options & OSPF_OPTION_L))

+ return (0);

+ break;

+

+ default:

+ return (0);

+ }

+

+ /* dig deeper if LLS data is available; see RFC4813 */

+ length2 = EXTRACT_16BITS(&op->ospf_len);

+ dptr = (const u_char *)op + length2;

+ dataend = (const u_char *)op + length;

+

+ if (EXTRACT_16BITS(&op->ospf_authtype) == OSPF_AUTH_MD5) {

+ dptr = dptr + op->ospf_authdata[3];

+ length2 += op->ospf_authdata[3];

+ }

+ if (length2 >= length) {

+ ND_PRINT((ndo, "\n\t[LLS truncated]"));

+ return (1);

+ }

+ ND_TCHECK2(*dptr, 2);

+ ND_PRINT((ndo, "\n\t LLS: checksum: 0x%04x", (u_int)EXTRACT_16BITS(dptr)));

+

+ dptr += 2;

+ ND_TCHECK2(*dptr, 2);

+ length2 = EXTRACT_16BITS(dptr);

+ ND_PRINT((ndo, ", length: %u", length2));

+

+ dptr += 2;

+ ND_TCHECK(*dptr);

+ while (dptr < dataend) {

+ ND_TCHECK2(*dptr, 2);

+ lls_type = EXTRACT_16BITS(dptr);

+ ND_PRINT((ndo, "\n\t %s (%u)",

+ tok2str(ospf_lls_tlv_values,"Unknown TLV",lls_type),

+ lls_type));

+ dptr += 2;

+ ND_TCHECK2(*dptr, 2);

+ lls_len = EXTRACT_16BITS(dptr);

+ ND_PRINT((ndo, ", length: %u", lls_len));

+ dptr += 2;

+ switch (lls_type) {

+

+ case OSPF_LLS_EO:

+ if (lls_len != 4) {

+ ND_PRINT((ndo, " [should be 4]"));

+ lls_len = 4;

+ }

+ ND_TCHECK2(*dptr, 4);

+ lls_flags = EXTRACT_32BITS(dptr);

+ ND_PRINT((ndo, "\n\t Options: 0x%08x [%s]", lls_flags,

+ bittok2str(ospf_lls_eo_options, "?", lls_flags)));

+

+ break;

+

+ case OSPF_LLS_MD5:

+ if (lls_len != 20) {

+ ND_PRINT((ndo, " [should be 20]"));

+ lls_len = 20;

+ }

+ ND_TCHECK2(*dptr, 4);

+ ND_PRINT((ndo, "\n\t Sequence number: 0x%08x", EXTRACT_32BITS(dptr)));

+ break;

+ }

+

+ dptr += lls_len;

+ }

+

+ return (0);

+trunc:

+ return (1);

+}

+

+static int

+ospf_decode_v2(netdissect_options *ndo,

+ register const struct ospfhdr *op, register const u_char *dataend)

{

register const struct in_addr *ap;

register const struct lsr *lsrp;

register const struct lsa_hdr *lshp;

register const struct lsa *lsap;

{

register const struct in_addr *ap;

register const struct lsr *lsrp;

register const struct lsa_hdr *lshp;

register const struct lsa *lsap;

- register u_int32_t lsa_count,lsa_count_max;

+ register uint32_t lsa_count,lsa_count_max;

switch (op->ospf_type) {

break;

case OSPF_TYPE_HELLO:

break;

case OSPF_TYPE_HELLO:

- printf("\n\tOptions: [%s]",

- bittok2str(ospf_option_values,"none",op->ospf_hello.hello_options));

+ ND_PRINT((ndo, "\n\tOptions [%s]",

+ bittok2str(ospf_option_values,"none",op->ospf_hello.hello_options)));

- TCHECK(op->ospf_hello.hello_deadint);

- printf("\n\t Hello Timer: %us, Dead Timer %us, Mask: %s, Priority: %u",

- EXTRACT_16BITS(&op->ospf_hello.hello_helloint),

- EXTRACT_32BITS(&op->ospf_hello.hello_deadint),

- ipaddr_string(&op->ospf_hello.hello_mask),

- op->ospf_hello.hello_priority);

+ ND_TCHECK(op->ospf_hello.hello_deadint);

+ ND_PRINT((ndo, "\n\t Hello Timer %us, Dead Timer %us, Mask %s, Priority %u",

+ EXTRACT_16BITS(&op->ospf_hello.hello_helloint),

+ EXTRACT_32BITS(&op->ospf_hello.hello_deadint),

+ ipaddr_string(ndo, &op->ospf_hello.hello_mask),

+ op->ospf_hello.hello_priority));

- TCHECK(op->ospf_hello.hello_dr);

+ ND_TCHECK(op->ospf_hello.hello_dr);

if (op->ospf_hello.hello_dr.s_addr != 0)

- printf("\n\t Designated Router %s",

- ipaddr_string(&op->ospf_hello.hello_dr));

+ ND_PRINT((ndo, "\n\t Designated Router %s",

+ ipaddr_string(ndo, &op->ospf_hello.hello_dr)));

- TCHECK(op->ospf_hello.hello_bdr);

+ ND_TCHECK(op->ospf_hello.hello_bdr);

if (op->ospf_hello.hello_bdr.s_addr != 0)

- printf(", Backup Designated Router %s",

- ipaddr_string(&op->ospf_hello.hello_bdr));

-

- ap = op->ospf_hello.hello_neighbor;

- if ((u_char *)ap < dataend)

- printf("\n\t Neighbor List:");

- while ((u_char *)ap < dataend) {

- TCHECK(*ap);

- printf("\n\t %s", ipaddr_string(ap));

- ++ap;

- }

+ ND_PRINT((ndo, ", Backup Designated Router %s",

+ ipaddr_string(ndo, &op->ospf_hello.hello_bdr)));

+

+ ap = op->ospf_hello.hello_neighbor;

+ if ((const u_char *)ap < dataend)

+ ND_PRINT((ndo, "\n\t Neighbor List:"));

+ while ((const u_char *)ap < dataend) {

+ ND_TCHECK(*ap);

+ ND_PRINT((ndo, "\n\t %s", ipaddr_string(ndo, ap)));

+ ++ap;

+ }

break; /* HELLO */

case OSPF_TYPE_DD:

break; /* HELLO */

case OSPF_TYPE_DD:

- TCHECK(op->ospf_db.db_options);

- printf("\n\tOptions: [%s]",

- bittok2str(ospf_option_values,"none",op->ospf_db.db_options));

- TCHECK(op->ospf_db.db_flags);

- printf(", DD Flags: [%s]",

- bittok2str(ospf_dd_flag_values,"none",op->ospf_db.db_flags));

-

- if (vflag) {

- /* Print all the LS adv's */

- lshp = op->ospf_db.db_lshdr;

- while (ospf_print_lshdr(lshp) != -1) {

- ++lshp;

- }

+ ND_TCHECK(op->ospf_db.db_options);

+ ND_PRINT((ndo, "\n\tOptions [%s]",

+ bittok2str(ospf_option_values, "none", op->ospf_db.db_options)));

+ ND_TCHECK(op->ospf_db.db_flags);

+ ND_PRINT((ndo, ", DD Flags [%s]",

+ bittok2str(ospf_dd_flag_values, "none", op->ospf_db.db_flags)));

+ ND_TCHECK(op->ospf_db.db_ifmtu);

+ if (op->ospf_db.db_ifmtu) {

+ ND_PRINT((ndo, ", MTU: %u", EXTRACT_16BITS(&op->ospf_db.db_ifmtu)));

+ }

+ ND_TCHECK(op->ospf_db.db_seq);

+ ND_PRINT((ndo, ", Sequence: 0x%08x", EXTRACT_32BITS(&op->ospf_db.db_seq)));

+

+ /* Print all the LS adv's */

+ lshp = op->ospf_db.db_lshdr;

+ while (((const u_char *)lshp < dataend) && ospf_print_lshdr(ndo, lshp) != -1) {

+ ++lshp;

}

break;

case OSPF_TYPE_LS_REQ:

lsrp = op->ospf_lsr;

}

break;

case OSPF_TYPE_LS_REQ:

lsrp = op->ospf_lsr;

- while ((u_char *)lsrp < dataend) {

- TCHECK(*lsrp);

+ while ((const u_char *)lsrp < dataend) {

+ ND_TCHECK(*lsrp);

- printf("\n\t Advertising Router: %s, %s LSA (%u)",

- ipaddr_string(&lsrp->ls_router),

+ ND_PRINT((ndo, "\n\t Advertising Router: %s, %s LSA (%u)",

+ ipaddr_string(ndo, &lsrp->ls_router),

tok2str(lsa_values,"unknown",EXTRACT_32BITS(lsrp->ls_type)),

- EXTRACT_32BITS(&lsrp->ls_type));

+ EXTRACT_32BITS(&lsrp->ls_type)));

switch (EXTRACT_32BITS(lsrp->ls_type)) {

/* the LSA header for opaque LSAs was slightly changed */

case LS_TYPE_OPAQUE_LL:

case LS_TYPE_OPAQUE_AL:

case LS_TYPE_OPAQUE_DW:

switch (EXTRACT_32BITS(lsrp->ls_type)) {

/* the LSA header for opaque LSAs was slightly changed */

case LS_TYPE_OPAQUE_LL:

case LS_TYPE_OPAQUE_AL:

case LS_TYPE_OPAQUE_DW:

- printf(", Opaque-Type: %s LSA (%u), Opaque-ID: %u",

+ ND_PRINT((ndo, ", Opaque-Type: %s LSA (%u), Opaque-ID: %u",

tok2str(lsa_opaque_values, "unknown",lsrp->un_ls_stateid.opaque_field.opaque_type),

lsrp->un_ls_stateid.opaque_field.opaque_type,

tok2str(lsa_opaque_values, "unknown",lsrp->un_ls_stateid.opaque_field.opaque_type),

lsrp->un_ls_stateid.opaque_field.opaque_type,

- EXTRACT_24BITS(&lsrp->un_ls_stateid.opaque_field.opaque_id));

+ EXTRACT_24BITS(&lsrp->un_ls_stateid.opaque_field.opaque_id)));

break;

default:

break;

default:

- printf(", LSA-ID: %s",

- ipaddr_string(&lsrp->un_ls_stateid.ls_stateid));

+ ND_PRINT((ndo, ", LSA-ID: %s",

+ ipaddr_string(ndo, &lsrp->un_ls_stateid.ls_stateid)));

break;

}

break;

}

-

+

++lsrp;

}

break;

case OSPF_TYPE_LS_UPDATE:

lsap = op->ospf_lsu.lsu_lsa;

++lsrp;

}

break;

case OSPF_TYPE_LS_UPDATE:

lsap = op->ospf_lsu.lsu_lsa;

- TCHECK(op->ospf_lsu.lsu_count);

+ ND_TCHECK(op->ospf_lsu.lsu_count);

lsa_count_max = EXTRACT_32BITS(&op->ospf_lsu.lsu_count);

- printf(", %d LSA%s",lsa_count_max, lsa_count_max > 1 ? "s" : "");

+ ND_PRINT((ndo, ", %d LSA%s", lsa_count_max, PLURAL_SUFFIX(lsa_count_max)));

for (lsa_count=1;lsa_count <= lsa_count_max;lsa_count++) {

- printf("\n\t LSA #%u",lsa_count);

- lsap = (const struct lsa *)ospf_print_lsa(lsap);

+ ND_PRINT((ndo, "\n\t LSA #%u", lsa_count));

+ lsap = (const struct lsa *)ospf_print_lsa(ndo, lsap);

if (lsap == NULL)

goto trunc;

}

if (lsap == NULL)

goto trunc;

}

case OSPF_TYPE_LS_ACK:

lshp = op->ospf_lsa.lsa_lshdr;

case OSPF_TYPE_LS_ACK:

lshp = op->ospf_lsa.lsa_lshdr;

- while (ospf_print_lshdr(lshp) != -1) {

+ while (ospf_print_lshdr(ndo, lshp) != -1) {

++lshp;

}

break;

default:

++lshp;

}

break;

default:

- printf("v2 type (%d)", op->ospf_type);

break;

}

return (0);

break;

}

return (0);

}

void

}

void

-ospf_print(register const u_char *bp, register u_int length,

- register const u_char *bp2)

+ospf_print(netdissect_options *ndo,

+ register const u_char *bp, register u_int length,

+ const u_char *bp2 _U_)

{

register const struct ospfhdr *op;

{

register const struct ospfhdr *op;

- register const struct ip *ip;

register const u_char *dataend;

register const char *cp;

register const u_char *dataend;

register const char *cp;

- op = (struct ospfhdr *)bp;

- ip = (struct ip *)bp2;

+ op = (const struct ospfhdr *)bp;

- /* XXX Before we do anything else, strip off the MD5 trailer */

- TCHECK(op->ospf_authtype);

- if (EXTRACT_16BITS(&op->ospf_authtype) == OSPF_AUTH_MD5) {

- length -= OSPF_AUTH_MD5_LEN;

- snapend -= OSPF_AUTH_MD5_LEN;

- }

+ /* XXX Before we do anything else, strip off the MD5 trailer */

+ ND_TCHECK(op->ospf_authtype);

+ if (EXTRACT_16BITS(&op->ospf_authtype) == OSPF_AUTH_MD5) {

+ length -= OSPF_AUTH_MD5_LEN;

+ ndo->ndo_snapend -= OSPF_AUTH_MD5_LEN;

+ }

/* If the type is valid translate it, or just print the type */

/* value. If it's not valid, say so and return */

/* If the type is valid translate it, or just print the type */

/* value. If it's not valid, say so and return */

- TCHECK(op->ospf_type);

+ ND_TCHECK(op->ospf_type);

cp = tok2str(type2str, "unknown LS-type", op->ospf_type);

- printf("OSPFv%u, %s (%u), length: %u",

- op->ospf_version,

- cp,

- op->ospf_type,

- length);

+ ND_PRINT((ndo, "OSPFv%u, %s, length %u", op->ospf_version, cp, length));

if (*cp == 'u')

return;

if (*cp == 'u')

return;

- if(!vflag) /* non verbose - so lets bail out here */

- return;

+ if (!ndo->ndo_vflag) { /* non verbose - so lets bail out here */

+ return;

+ }

- TCHECK(op->ospf_len);

+ ND_TCHECK(op->ospf_len);

if (length != EXTRACT_16BITS(&op->ospf_len)) {

- printf(" [len %d]", EXTRACT_16BITS(&op->ospf_len));

- return;

+ ND_PRINT((ndo, " [len %d]", EXTRACT_16BITS(&op->ospf_len)));

+ }

+

+ if (length > EXTRACT_16BITS(&op->ospf_len)) {

+ dataend = bp + EXTRACT_16BITS(&op->ospf_len);

+ } else {

+ dataend = bp + length;

}

- dataend = bp + length;

- TCHECK(op->ospf_routerid);

- printf("\n\tRouter-ID: %s", ipaddr_string(&op->ospf_routerid));

+ ND_TCHECK(op->ospf_routerid);

+ ND_PRINT((ndo, "\n\tRouter-ID %s", ipaddr_string(ndo, &op->ospf_routerid)));

- TCHECK(op->ospf_areaid);

+ ND_TCHECK(op->ospf_areaid);

if (op->ospf_areaid.s_addr != 0)

- printf(", Area %s", ipaddr_string(&op->ospf_areaid));

+ ND_PRINT((ndo, ", Area %s", ipaddr_string(ndo, &op->ospf_areaid)));

else

- printf(", Backbone Area");

+ ND_PRINT((ndo, ", Backbone Area"));

- if (vflag) {

+ if (ndo->ndo_vflag) {

/* Print authentication data (should we really do this?) */

- TCHECK2(op->ospf_authdata[0], sizeof(op->ospf_authdata));

+ ND_TCHECK2(op->ospf_authdata[0], sizeof(op->ospf_authdata));

- printf(", Authentication Type: %s (%u)",

- tok2str(ospf_authtype_values,"unknown",EXTRACT_16BITS(&op->ospf_authtype)),

- EXTRACT_16BITS(&op->ospf_authtype));

+ ND_PRINT((ndo, ", Authentication Type: %s (%u)",

+ tok2str(ospf_authtype_values, "unknown", EXTRACT_16BITS(&op->ospf_authtype)),

+ EXTRACT_16BITS(&op->ospf_authtype)));

switch (EXTRACT_16BITS(&op->ospf_authtype)) {

break;

case OSPF_AUTH_SIMPLE:

break;

case OSPF_AUTH_SIMPLE:

- (void)fn_printn(op->ospf_authdata,

- sizeof(op->ospf_authdata), NULL);

- printf("\"");

+ ND_PRINT((ndo, "\n\tSimple text password: "));

+ safeputs(ndo, op->ospf_authdata, OSPF_AUTH_SIMPLE_LEN);

break;

case OSPF_AUTH_MD5:

break;

case OSPF_AUTH_MD5:

- printf("\n\tKey-ID: %u, Auth-Length: %u, Crypto Sequence Number: 0x%08x",

- *((op->ospf_authdata)+2),

- *((op->ospf_authdata)+3),

- EXTRACT_32BITS((op->ospf_authdata)+4));

+ ND_PRINT((ndo, "\n\tKey-ID: %u, Auth-Length: %u, Crypto Sequence Number: 0x%08x",

+ *((op->ospf_authdata) + 2),

+ *((op->ospf_authdata) + 3),

+ EXTRACT_32BITS((op->ospf_authdata) + 4)));

break;

default:

break;

default:

case 2:

/* ospf version 2 */

case 2:

/* ospf version 2 */

- if (ospf_decode_v2(op, dataend))

+ if (ospf_decode_v2(ndo, op, dataend))

goto trunc;

+ if (length > EXTRACT_16BITS(&op->ospf_len)) {

+ if (ospf_decode_lls(ndo, op, length))

+ goto trunc;

+ }

break;

default:

break;

default:

- printf(" ospf [version %d]", op->ospf_version);

+ ND_PRINT((ndo, " ospf [version %d]", op->ospf_version));

break;

} /* end switch on version */

return;

trunc:

break;

} /* end switch on version */

return;

trunc:

- fputs(tstr, stdout);

+ ND_PRINT((ndo, "%s", tstr));

}