/* \summary: ISO CLNS, ESIS, and ISIS printer */
+/*
+ * specification:
+ *
+ * CLNP: ISO 8473
+ * ES-IS: ISO 9542
+ * IS-IS: ISO 10589
+ */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "netdissect.h"
#include "addrtoname.h"
-#include "ether.h"
#include "nlpid.h"
#include "extract.h"
#include "gmpls.h"
* IS-IS is defined in ISO 10589. Look there for protocol definitions.
*/
-#define SYSTEM_ID_LEN ETHER_ADDR_LEN
+#define SYSTEM_ID_LEN MAC_ADDR_LEN
#define NODE_ID_LEN (SYSTEM_ID_LEN+1)
#define LSP_ID_LEN (SYSTEM_ID_LEN+2)
#define ISIS_TLV_LSP_BUFFERSIZE 14 /* iso10589 rev2 */
#define ISIS_TLV_LSP_BUFFERSIZE_MINLEN 2
#define ISIS_TLV_EXT_IS_REACH 22 /* rfc5305 */
-#define ISIS_TLV_IS_ALIAS_ID 24 /* draft-ietf-isis-ext-lsp-frags-02 */
+#define ISIS_TLV_IS_ALIAS_ID 24 /* rfc5311 */
#define ISIS_TLV_DECNET_PHASE4 42
#define ISIS_TLV_LUCENT_PRIVATE 66
#define ISIS_TLV_INT_IP_REACH 128 /* rfc1195, rfc2966 */
};
struct isis_spb_mcid {
- uint8_t format_id;
- uint8_t name[32];
- uint8_t revision_lvl[2];
- uint8_t digest[16];
+ nd_uint8_t format_id;
+ nd_byte name[32];
+ nd_uint16_t revision_lvl;
+ nd_byte digest[16];
};
struct isis_subtlv_spb_mcid {
};
struct isis_subtlv_spb_instance {
- uint8_t cist_root_id[8];
- uint8_t cist_external_root_path_cost[4];
- uint8_t bridge_priority[2];
- uint8_t spsourceid[4];
- uint8_t no_of_trees;
+ nd_byte cist_root_id[8];
+ nd_uint32_t cist_external_root_path_cost;
+ nd_uint16_t bridge_priority;
+ nd_uint32_t spsourceid;
+ nd_uint8_t no_of_trees;
};
#define CLNP_SEGMENT_PART 0x80
{ 0, NULL}
};
-#define ISIS_MASK_LSP_OL_BIT(x) ((x)&0x4)
-#define ISIS_MASK_LSP_ISTYPE_BITS(x) ((x)&0x3)
-#define ISIS_MASK_LSP_PARTITION_BIT(x) ((x)&0x80)
-#define ISIS_MASK_LSP_ATT_BITS(x) ((x)&0x78)
-#define ISIS_MASK_LSP_ATT_ERROR_BIT(x) ((x)&0x40)
-#define ISIS_MASK_LSP_ATT_EXPENSE_BIT(x) ((x)&0x20)
-#define ISIS_MASK_LSP_ATT_DELAY_BIT(x) ((x)&0x10)
-#define ISIS_MASK_LSP_ATT_DEFAULT_BIT(x) ((x)&0x8)
+#define ISIS_MASK_LSP_OL_BIT(x) (EXTRACT_U_1(x)&0x4)
+#define ISIS_MASK_LSP_ISTYPE_BITS(x) (EXTRACT_U_1(x)&0x3)
+#define ISIS_MASK_LSP_PARTITION_BIT(x) (EXTRACT_U_1(x)&0x80)
+#define ISIS_MASK_LSP_ATT_BITS(x) (EXTRACT_U_1(x)&0x78)
+#define ISIS_MASK_LSP_ATT_ERROR_BIT(x) (EXTRACT_U_1(x)&0x40)
+#define ISIS_MASK_LSP_ATT_EXPENSE_BIT(x) (EXTRACT_U_1(x)&0x20)
+#define ISIS_MASK_LSP_ATT_DELAY_BIT(x) (EXTRACT_U_1(x)&0x10)
+#define ISIS_MASK_LSP_ATT_DEFAULT_BIT(x) (EXTRACT_U_1(x)&0x8)
#define ISIS_MASK_MTID(x) ((x)&0x0fff)
#define ISIS_MASK_MTFLAGS(x) ((x)&0xf000)
#define ISIS_MASK_TLV_EXTD_IP6_IE(x) ((x)&0x40)
#define ISIS_MASK_TLV_EXTD_IP6_SUBTLV(x) ((x)&0x20)
-#define ISIS_LSP_TLV_METRIC_SUPPORTED(x) ((x)&0x80)
-#define ISIS_LSP_TLV_METRIC_IE(x) ((x)&0x40)
-#define ISIS_LSP_TLV_METRIC_UPDOWN(x) ((x)&0x80)
-#define ISIS_LSP_TLV_METRIC_VALUE(x) ((x)&0x3f)
+#define ISIS_LSP_TLV_METRIC_SUPPORTED(x) (EXTRACT_U_1(x)&0x80)
+#define ISIS_LSP_TLV_METRIC_IE(x) (EXTRACT_U_1(x)&0x40)
+#define ISIS_LSP_TLV_METRIC_UPDOWN(x) (EXTRACT_U_1(x)&0x80)
+#define ISIS_LSP_TLV_METRIC_VALUE(x) (EXTRACT_U_1(x)&0x3f)
#define ISIS_MASK_TLV_SHARED_RISK_GROUP(x) ((x)&0x1)
};
struct isis_tlv_ptp_adj {
- uint8_t adjacency_state;
- uint8_t extd_local_circuit_id[4];
- uint8_t neighbor_sysid[SYSTEM_ID_LEN];
- uint8_t neighbor_extd_local_circuit_id[4];
+ nd_uint8_t adjacency_state;
+ nd_uint32_t extd_local_circuit_id;
+ nd_byte neighbor_sysid[SYSTEM_ID_LEN];
+ nd_uint32_t neighbor_extd_local_circuit_id;
};
static void osi_print_cksum(netdissect_options *, const uint8_t *pptr,
static int isis_print(netdissect_options *, const uint8_t *, u_int);
struct isis_metric_block {
- uint8_t metric_default;
- uint8_t metric_delay;
- uint8_t metric_expense;
- uint8_t metric_error;
+ nd_uint8_t metric_default;
+ nd_uint8_t metric_delay;
+ nd_uint8_t metric_expense;
+ nd_uint8_t metric_error;
};
struct isis_tlv_is_reach {
struct isis_metric_block isis_metric_block;
- uint8_t neighbor_nodeid[NODE_ID_LEN];
+ nd_byte neighbor_nodeid[NODE_ID_LEN];
};
struct isis_tlv_es_reach {
struct isis_metric_block isis_metric_block;
- uint8_t neighbor_sysid[SYSTEM_ID_LEN];
+ nd_byte neighbor_sysid[SYSTEM_ID_LEN];
};
struct isis_tlv_ip_reach {
struct isis_metric_block isis_metric_block;
- uint8_t prefix[4];
- uint8_t mask[4];
+ nd_ipv4 prefix;
+ nd_ipv4 mask;
};
static const struct tok isis_is_reach_virtual_values[] = {
};
struct isis_common_header {
- uint8_t nlpid;
- uint8_t fixed_len;
- uint8_t version; /* Protocol version */
- uint8_t id_length;
- uint8_t pdu_type; /* 3 MSbits are reserved */
- uint8_t pdu_version; /* Packet format version */
- uint8_t reserved;
- uint8_t max_area;
+ nd_uint8_t nlpid;
+ nd_uint8_t fixed_len;
+ nd_uint8_t version; /* Protocol version */
+ nd_uint8_t id_length;
+ nd_uint8_t pdu_type; /* 3 MSbits are reserved */
+ nd_uint8_t pdu_version; /* Packet format version */
+ nd_byte reserved;
+ nd_uint8_t max_area;
};
struct isis_iih_lan_header {
- uint8_t circuit_type;
- uint8_t source_id[SYSTEM_ID_LEN];
- uint8_t holding_time[2];
- uint8_t pdu_len[2];
- uint8_t priority;
- uint8_t lan_id[NODE_ID_LEN];
+ nd_uint8_t circuit_type;
+ nd_byte source_id[SYSTEM_ID_LEN];
+ nd_uint16_t holding_time;
+ nd_uint16_t pdu_len;
+ nd_uint8_t priority;
+ nd_byte lan_id[NODE_ID_LEN];
};
struct isis_iih_ptp_header {
- uint8_t circuit_type;
- uint8_t source_id[SYSTEM_ID_LEN];
- uint8_t holding_time[2];
- uint8_t pdu_len[2];
- uint8_t circuit_id;
+ nd_uint8_t circuit_type;
+ nd_byte source_id[SYSTEM_ID_LEN];
+ nd_uint16_t holding_time;
+ nd_uint16_t pdu_len;
+ nd_uint8_t circuit_id;
};
struct isis_lsp_header {
- uint8_t pdu_len[2];
- uint8_t remaining_lifetime[2];
- uint8_t lsp_id[LSP_ID_LEN];
- uint8_t sequence_number[4];
- uint8_t checksum[2];
- uint8_t typeblock;
+ nd_uint16_t pdu_len;
+ nd_uint16_t remaining_lifetime;
+ nd_byte lsp_id[LSP_ID_LEN];
+ nd_uint32_t sequence_number;
+ nd_uint16_t checksum;
+ nd_uint8_t typeblock;
};
struct isis_csnp_header {
- uint8_t pdu_len[2];
- uint8_t source_id[NODE_ID_LEN];
- uint8_t start_lsp_id[LSP_ID_LEN];
- uint8_t end_lsp_id[LSP_ID_LEN];
+ nd_uint16_t pdu_len;
+ nd_byte source_id[NODE_ID_LEN];
+ nd_byte start_lsp_id[LSP_ID_LEN];
+ nd_byte end_lsp_id[LSP_ID_LEN];
};
struct isis_psnp_header {
- uint8_t pdu_len[2];
- uint8_t source_id[NODE_ID_LEN];
+ nd_uint16_t pdu_len;
+ nd_byte source_id[NODE_ID_LEN];
};
struct isis_tlv_lsp {
- uint8_t remaining_lifetime[2];
- uint8_t lsp_id[LSP_ID_LEN];
- uint8_t sequence_number[4];
- uint8_t checksum[2];
+ nd_uint16_t remaining_lifetime;
+ nd_byte lsp_id[LSP_ID_LEN];
+ nd_uint32_t sequence_number;
+ nd_uint16_t checksum;
};
#define ISIS_COMMON_HEADER_SIZE (sizeof(struct isis_common_header))
void
isoclns_print(netdissect_options *ndo, const uint8_t *p, u_int length)
{
- if (!ND_TTEST(*p)) { /* enough bytes on the wire ? */
+ if (!ND_TTEST_1(p)) { /* enough bytes on the wire ? */
ND_PRINT((ndo, "|OSI"));
return;
}
if (ndo->ndo_eflag)
- ND_PRINT((ndo, "OSI NLPID %s (0x%02x): ", tok2str(nlpid_values, "Unknown", EXTRACT_U_1(p)), *p));
+ ND_PRINT((ndo, "OSI NLPID %s (0x%02x): ", tok2str(nlpid_values, "Unknown", EXTRACT_U_1(p)), EXTRACT_U_1(p)));
- switch (*p) {
+ switch (EXTRACT_U_1(p)) {
case NLPID_CLNP:
if (!clnp_print(ndo, p, length))
default:
if (!ndo->ndo_eflag)
- ND_PRINT((ndo, "OSI NLPID 0x%02x unknown", *p));
+ ND_PRINT((ndo, "OSI NLPID 0x%02x unknown", EXTRACT_U_1(p)));
ND_PRINT((ndo, "%slength: %u", ndo->ndo_eflag ? "" : ", ", length));
if (length > 1)
print_unknown_data(ndo, p, "\n\t", length);
};
struct clnp_header_t {
- uint8_t nlpid;
- uint8_t length_indicator;
- uint8_t version;
- uint8_t lifetime; /* units of 500ms */
- uint8_t type;
- uint8_t segment_length[2];
- uint8_t cksum[2];
+ nd_uint8_t nlpid;
+ nd_uint8_t length_indicator;
+ nd_uint8_t version;
+ nd_uint8_t lifetime; /* units of 500ms */
+ nd_uint8_t type;
+ nd_uint16_t segment_length;
+ nd_uint16_t cksum;
};
struct clnp_segment_header_t {
- uint8_t data_unit_id[2];
- uint8_t segment_offset[2];
- uint8_t total_length[2];
+ nd_uint16_t data_unit_id;
+ nd_uint16_t segment_offset;
+ nd_uint16_t total_length;
};
/*
const uint8_t *pptr, u_int length)
{
const uint8_t *optr,*source_address,*dest_address;
- u_int li,tlen,nsap_offset,source_address_length,dest_address_length, clnp_pdu_type, clnp_flags;
+ u_int li,li_remaining,tlen,nsap_offset,source_address_length,dest_address_length, clnp_pdu_type, clnp_flags;
const struct clnp_header_t *clnp_header;
const struct clnp_segment_header_t *clnp_segment_header;
uint8_t rfd_error,rfd_error_major,rfd_error_minor;
clnp_header = (const struct clnp_header_t *) pptr;
ND_TCHECK(*clnp_header);
- li = clnp_header->length_indicator;
+ li = EXTRACT_U_1(clnp_header->length_indicator);
+ li_remaining = li;
optr = pptr;
if (!ndo->ndo_eflag)
* Sanity checking of the header.
*/
- if (clnp_header->version != CLNP_VERSION) {
- ND_PRINT((ndo, "version %d packet not supported", clnp_header->version));
+ if (EXTRACT_U_1(clnp_header->version) != CLNP_VERSION) {
+ ND_PRINT((ndo, "version %u packet not supported", EXTRACT_U_1(clnp_header->version)));
return (0);
}
/* FIXME further header sanity checking */
- clnp_pdu_type = clnp_header->type & CLNP_PDU_TYPE_MASK;
- clnp_flags = clnp_header->type & CLNP_FLAG_MASK;
+ clnp_pdu_type = EXTRACT_U_1(clnp_header->type) & CLNP_PDU_TYPE_MASK;
+ clnp_flags = EXTRACT_U_1(clnp_header->type) & CLNP_FLAG_MASK;
pptr += sizeof(struct clnp_header_t);
- li -= sizeof(struct clnp_header_t);
+ li_remaining -= sizeof(struct clnp_header_t);
- if (li < 1) {
+ if (li_remaining < 1) {
ND_PRINT((ndo, "li < size of fixed part of CLNP header and addresses"));
return (0);
}
- ND_TCHECK(*pptr);
+ ND_TCHECK_1(pptr);
dest_address_length = EXTRACT_U_1(pptr);
pptr += 1;
- li -= 1;
- if (li < dest_address_length) {
+ li_remaining -= 1;
+ if (li_remaining < dest_address_length) {
ND_PRINT((ndo, "li < size of fixed part of CLNP header and addresses"));
return (0);
}
- ND_TCHECK2(*pptr, dest_address_length);
+ ND_TCHECK_LEN(pptr, dest_address_length);
dest_address = pptr;
pptr += dest_address_length;
- li -= dest_address_length;
+ li_remaining -= dest_address_length;
- if (li < 1) {
+ if (li_remaining < 1) {
ND_PRINT((ndo, "li < size of fixed part of CLNP header and addresses"));
return (0);
}
- ND_TCHECK(*pptr);
+ ND_TCHECK_1(pptr);
source_address_length = EXTRACT_U_1(pptr);
pptr += 1;
- li -= 1;
- if (li < source_address_length) {
+ li_remaining -= 1;
+ if (li_remaining < source_address_length) {
ND_PRINT((ndo, "li < size of fixed part of CLNP header and addresses"));
return (0);
}
- ND_TCHECK2(*pptr, source_address_length);
+ ND_TCHECK_LEN(pptr, source_address_length);
source_address = pptr;
pptr += source_address_length;
- li -= source_address_length;
+ li_remaining -= source_address_length;
if (ndo->ndo_vflag < 1) {
ND_PRINT((ndo, "%s%s > %s, %s, length %u",
ND_PRINT((ndo, "\n\t%s PDU, hlen: %u, v: %u, lifetime: %u.%us, Segment PDU length: %u, checksum: 0x%04x",
tok2str(clnp_pdu_values, "unknown (%u)",clnp_pdu_type),
- clnp_header->length_indicator,
- clnp_header->version,
- clnp_header->lifetime/2,
- (clnp_header->lifetime%2)*5,
+ EXTRACT_U_1(clnp_header->length_indicator),
+ EXTRACT_U_1(clnp_header->version),
+ EXTRACT_U_1(clnp_header->lifetime)/2,
+ (EXTRACT_U_1(clnp_header->lifetime)%2)*5,
EXTRACT_BE_U_2(clnp_header->segment_length),
EXTRACT_BE_U_2(clnp_header->cksum)));
osi_print_cksum(ndo, optr, EXTRACT_BE_U_2(clnp_header->cksum), 7,
- clnp_header->length_indicator);
+ EXTRACT_U_1(clnp_header->length_indicator));
ND_PRINT((ndo, "\n\tFlags [%s]",
bittok2str(clnp_flag_values, "none", clnp_flags)));
isonsap_string(ndo, dest_address, dest_address_length)));
if (clnp_flags & CLNP_SEGMENT_PART) {
- if (li < sizeof(struct clnp_segment_header_t)) {
+ if (li_remaining < sizeof(struct clnp_segment_header_t)) {
ND_PRINT((ndo, "li < size of fixed part of CLNP header, addresses, and segment part"));
return (0);
}
EXTRACT_BE_U_2(clnp_segment_header->segment_offset),
EXTRACT_BE_U_2(clnp_segment_header->total_length)));
pptr+=sizeof(struct clnp_segment_header_t);
- li-=sizeof(struct clnp_segment_header_t);
+ li_remaining-=sizeof(struct clnp_segment_header_t);
}
/* now walk the options */
- while (li >= 2) {
+ while (li_remaining >= 2) {
u_int op, opli;
const uint8_t *tptr;
- if (li < 2) {
+ if (li_remaining < 2) {
ND_PRINT((ndo, ", bad opts/li"));
return (0);
}
op = EXTRACT_U_1(pptr);
opli = EXTRACT_U_1(pptr + 1);
pptr += 2;
- li -= 2;
- if (opli > li) {
- ND_PRINT((ndo, ", opt (%d) too long", op));
+ li_remaining -= 2;
+ if (opli > li_remaining) {
+ ND_PRINT((ndo, ", opt (%u) too long", op));
return (0);
}
- ND_TCHECK2(*pptr, opli);
- li -= opli;
+ ND_TCHECK_LEN(pptr, opli);
+ li_remaining -= opli;
tptr = pptr;
tlen = opli;
/*
* We've already checked that the entire option is present
- * in the captured packet with the ND_TCHECK2() call.
- * Therefore, we don't need to do ND_TCHECK()/ND_TCHECK2()
+ * in the captured packet with the ND_TCHECK_LEN() call.
+ * Therefore, we don't need to do ND_TCHECK()/ND_TCHECK_LEN()
* checks.
* We do, however, need to check tlen, to make sure we
* don't run past the end of the option.
}
if (source_address_length > 0) {
source_address=(tptr+1);
- ND_TCHECK2(*source_address, source_address_length);
+ ND_TCHECK_LEN(source_address,
+ source_address_length);
ND_PRINT((ndo, "\n\t NSAP address (length %u): %s",
source_address_length,
isonsap_string(ndo, source_address, source_address_length)));
case CLNP_PDU_ER: /* fall through */
case CLNP_PDU_ERP:
- ND_TCHECK(*pptr);
+ ND_TCHECK_1(pptr);
if (EXTRACT_U_1(pptr) == NLPID_CLNP) {
ND_PRINT((ndo, "\n\t-----original packet-----\n\t"));
/* FIXME recursion protection */
- clnp_print(ndo, pptr, length - clnp_header->length_indicator);
+ clnp_print(ndo, pptr, length - li);
break;
}
default:
/* dump the PDU specific data */
if (length-(pptr-optr) > 0) {
- ND_PRINT((ndo, "\n\t undecoded non-header data, length %u", length-clnp_header->length_indicator));
+ ND_PRINT((ndo, "\n\t undecoded non-header data, length %u", length-li));
print_unknown_data(ndo, pptr, "\n\t ", length - (pptr - optr));
}
}
};
struct esis_header_t {
- uint8_t nlpid;
- uint8_t length_indicator;
- uint8_t version;
- uint8_t reserved;
- uint8_t type;
- uint8_t holdtime[2];
- uint8_t cksum[2];
+ nd_uint8_t nlpid;
+ nd_uint8_t length_indicator;
+ nd_uint8_t version;
+ nd_byte reserved;
+ nd_uint8_t type;
+ nd_uint16_t holdtime;
+ nd_uint16_t cksum;
};
static void
const uint8_t *pptr, u_int length)
{
const uint8_t *optr;
- u_int li,esis_pdu_type,source_address_length, source_address_number;
+ u_int li, version, esis_pdu_type, source_address_length, source_address_number;
const struct esis_header_t *esis_header;
if (!ndo->ndo_eflag)
esis_header = (const struct esis_header_t *) pptr;
ND_TCHECK(*esis_header);
- li = esis_header->length_indicator;
+ li = EXTRACT_U_1(esis_header->length_indicator);
optr = pptr;
/*
* Sanity checking of the header.
*/
- if (esis_header->nlpid != NLPID_ESIS) {
- ND_PRINT((ndo, " nlpid 0x%02x packet not supported", esis_header->nlpid));
+ if (EXTRACT_U_1(esis_header->nlpid) != NLPID_ESIS) {
+ ND_PRINT((ndo, " nlpid 0x%02x packet not supported", EXTRACT_U_1(esis_header->nlpid)));
return;
}
- if (esis_header->version != ESIS_VERSION) {
- ND_PRINT((ndo, " version %d packet not supported", esis_header->version));
+ version = EXTRACT_U_1(esis_header->version);
+ if (version != ESIS_VERSION) {
+ ND_PRINT((ndo, " version %u packet not supported", version));
return;
}
return;
}
- esis_pdu_type = esis_header->type & ESIS_PDU_TYPE_MASK;
+ esis_pdu_type = EXTRACT_U_1(esis_header->type) & ESIS_PDU_TYPE_MASK;
if (ndo->ndo_vflag < 1) {
ND_PRINT((ndo, "%s%s, length %u",
tok2str(esis_pdu_values,"unknown type: %u", esis_pdu_type),
esis_pdu_type));
- ND_PRINT((ndo, ", v: %u%s", esis_header->version, esis_header->version == ESIS_VERSION ? "" : "unsupported" ));
+ ND_PRINT((ndo, ", v: %u%s", version, version == ESIS_VERSION ? "" : "unsupported" ));
ND_PRINT((ndo, ", checksum: 0x%04x", EXTRACT_BE_U_2(esis_header->cksum)));
osi_print_cksum(ndo, pptr, EXTRACT_BE_U_2(esis_header->cksum), 7,
const uint8_t *dst, *snpa, *neta;
u_int dstl, snpal, netal;
- ND_TCHECK(*pptr);
+ ND_TCHECK_1(pptr);
if (li < 1) {
ND_PRINT((ndo, ", bad redirect/li"));
return;
dstl = EXTRACT_U_1(pptr);
pptr++;
li--;
- ND_TCHECK2(*pptr, dstl);
+ ND_TCHECK_LEN(pptr, dstl);
if (li < dstl) {
ND_PRINT((ndo, ", bad redirect/li"));
return;
li -= dstl;
ND_PRINT((ndo, "\n\t %s", isonsap_string(ndo, dst, dstl)));
- ND_TCHECK(*pptr);
+ ND_TCHECK_1(pptr);
if (li < 1) {
ND_PRINT((ndo, ", bad redirect/li"));
return;
snpal = EXTRACT_U_1(pptr);
pptr++;
li--;
- ND_TCHECK2(*pptr, snpal);
+ ND_TCHECK_LEN(pptr, snpal);
if (li < snpal) {
ND_PRINT((ndo, ", bad redirect/li"));
return;
snpa = pptr;
pptr += snpal;
li -= snpal;
- ND_TCHECK(*pptr);
+ ND_TCHECK_1(pptr);
if (li < 1) {
ND_PRINT((ndo, ", bad redirect/li"));
return;
}
netal = EXTRACT_U_1(pptr);
pptr++;
- ND_TCHECK2(*pptr, netal);
+ ND_TCHECK_LEN(pptr, netal);
if (li < netal) {
ND_PRINT((ndo, ", bad redirect/li"));
return;
}
case ESIS_PDU_ESH:
- ND_TCHECK(*pptr);
+ ND_TCHECK_1(pptr);
if (li < 1) {
ND_PRINT((ndo, ", bad esh/li"));
return;
ND_PRINT((ndo, "\n\t Number of Source Addresses: %u", source_address_number));
while (source_address_number > 0) {
- ND_TCHECK(*pptr);
+ ND_TCHECK_1(pptr);
if (li < 1) {
ND_PRINT((ndo, ", bad esh/li"));
return;
pptr++;
li--;
- ND_TCHECK2(*pptr, source_address_length);
+ ND_TCHECK_LEN(pptr, source_address_length);
if (li < source_address_length) {
ND_PRINT((ndo, ", bad esh/li"));
return;
break;
case ESIS_PDU_ISH: {
- ND_TCHECK(*pptr);
+ ND_TCHECK_1(pptr);
if (li < 1) {
ND_PRINT((ndo, ", bad ish/li"));
return;
source_address_length = EXTRACT_U_1(pptr);
pptr++;
li--;
- ND_TCHECK2(*pptr, source_address_length);
+ ND_TCHECK_LEN(pptr, source_address_length);
if (li < source_address_length) {
ND_PRINT((ndo, ", bad ish/li"));
return;
pptr += 2;
li -= 2;
if (opli > li) {
- ND_PRINT((ndo, ", opt (%d) too long", op));
+ ND_PRINT((ndo, ", opt (%u) too long", op));
return;
}
li -= opli;
int i;
ND_TCHECK(*mcid);
- ND_PRINT((ndo, "ID: %d, Name: ", mcid->format_id));
+ ND_PRINT((ndo, "ID: %u, Name: ", EXTRACT_U_1(mcid->format_id)));
if (fn_printzp(ndo, mcid->name, 32, ndo->ndo_snapend))
goto trunc;
- ND_PRINT((ndo, "\n\t Lvl: %d", EXTRACT_BE_U_2(mcid->revision_lvl)));
+ ND_PRINT((ndo, "\n\t Lvl: %u", EXTRACT_BE_U_2(mcid->revision_lvl)));
ND_PRINT((ndo, ", Digest: "));
static int
isis_print_mt_port_cap_subtlv(netdissect_options *ndo,
- const uint8_t *tptr, int len)
+ const uint8_t *tptr, u_int len)
{
- int stlv_type, stlv_len;
+ u_int stlv_type, stlv_len;
const struct isis_subtlv_spb_mcid *subtlv_spb_mcid;
int i;
if (len < stlv_len)
goto trunc;
/* Make sure the entire subTLV is in the captured data */
- ND_TCHECK2(*(tptr), stlv_len);
+ ND_TCHECK_LEN(tptr, stlv_len);
switch (stlv_type)
{
if (stlv_len < ISIS_SUBTLV_SPB_DIGEST_MIN_LEN)
goto trunc;
- ND_PRINT((ndo, "\n\t RES: %d V: %d A: %d D: %d",
+ ND_PRINT((ndo, "\n\t RES: %u V: %u A: %u D: %u",
(EXTRACT_U_1(tptr) >> 5),
((EXTRACT_U_1(tptr) >> 4) & 0x01),
((EXTRACT_U_1(tptr) >> 2) & 0x03),
tptr = tptr+4;
- ND_PRINT((ndo, " BVID: %d, U:%01x M:%01x ",
+ ND_PRINT((ndo, " BVID: %u, U:%01x M:%01x ",
(EXTRACT_BE_U_2(tptr) >> 4) ,
(EXTRACT_BE_U_2(tptr) >> 3) & 0x01,
(EXTRACT_BE_U_2(tptr) >> 2) & 0x01));
static int
isis_print_mt_capability_subtlv(netdissect_options *ndo,
- const uint8_t *tptr, int len)
+ const uint8_t *tptr, u_int len)
{
- int stlv_type, stlv_len, tmp;
+ u_int stlv_type, stlv_len, tmp;
while (len > 2)
{
if (len < stlv_len)
goto trunc;
/* Make sure the entire subTLV is in the captured data */
- ND_TCHECK2(*(tptr), stlv_len);
+ ND_TCHECK_LEN(tptr, stlv_len);
switch (stlv_type)
{
tptr = tptr+4;
ND_PRINT((ndo, ", Path Cost: %08x", EXTRACT_BE_U_4(tptr)));
tptr = tptr+4;
- ND_PRINT((ndo, ", Prio: %d", EXTRACT_BE_U_2(tptr)));
+ ND_PRINT((ndo, ", Prio: %u", EXTRACT_BE_U_2(tptr)));
tptr = tptr + 2;
- ND_PRINT((ndo, "\n\t RES: %d",
+ ND_PRINT((ndo, "\n\t RES: %u",
EXTRACT_BE_U_2(tptr) >> 5));
- ND_PRINT((ndo, ", V: %d",
+ ND_PRINT((ndo, ", V: %u",
(EXTRACT_BE_U_2(tptr) >> 4) & 0x0001));
- ND_PRINT((ndo, ", SPSource-ID: %d",
+ ND_PRINT((ndo, ", SPSource-ID: %u",
(EXTRACT_BE_U_4(tptr) & 0x000fffff)));
tptr = tptr+4;
ND_PRINT((ndo, ", No of Trees: %x", EXTRACT_U_1(tptr)));
if (stlv_len < ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN)
goto trunc;
- ND_PRINT((ndo, "\n\t U:%d, M:%d, A:%d, RES:%d",
+ ND_PRINT((ndo, "\n\t U:%u, M:%u, A:%u, RES:%u",
EXTRACT_U_1(tptr) >> 7,
(EXTRACT_U_1(tptr) >> 6) & 0x01,
(EXTRACT_U_1(tptr) >> 5) & 0x01,
tptr = tptr + 4;
- ND_PRINT((ndo, ", BVID: %d, SPVID: %d",
+ ND_PRINT((ndo, ", BVID: %u, SPVID: %u",
(EXTRACT_BE_U_3(tptr) >> 12) & 0x000fff,
EXTRACT_BE_U_3(tptr) & 0x000fff));
ND_PRINT((ndo, "%04x", EXTRACT_BE_U_2(tptr)));
tptr = tptr+2;
- ND_PRINT((ndo, ", RES: %d, VID: %d", EXTRACT_BE_U_2(tptr) >> 12,
+ ND_PRINT((ndo, ", RES: %u, VID: %u", EXTRACT_BE_U_2(tptr) >> 12,
(EXTRACT_BE_U_2(tptr)) & 0x0fff));
tptr = tptr+2;
while (stlv_len >= 4) {
ND_TCHECK_4(tptr);
- ND_PRINT((ndo, "\n\t T: %d, R: %d, RES: %d, ISID: %d",
+ ND_PRINT((ndo, "\n\t T: %u, R: %u, RES: %u, ISID: %u",
(EXTRACT_BE_U_4(tptr) >> 31),
(EXTRACT_BE_U_4(tptr) >> 30) & 0x01,
(EXTRACT_BE_U_4(tptr) >> 24) & 0x03f,
/* shared routine for printing system, node and lsp-ids */
static char *
-isis_print_id(const uint8_t *cp, int id_len)
+isis_print_id(const uint8_t *cp, u_int id_len)
{
- int i;
+ u_int i;
static char id[sizeof("xxxx.xxxx.xxxx.yy-zz")];
char *pos = id;
- int sysid_len;
+ u_int sysid_len;
sysid_len = SYSTEM_ID_LEN;
if (sysid_len > id_len)
sysid_len = id_len;
for (i = 1; i <= sysid_len; i++) {
- snprintf(pos, sizeof(id) - (pos - id), "%02x", *cp++);
+ snprintf(pos, sizeof(id) - (pos - id), "%02x", EXTRACT_U_1(cp));
+ cp++;
pos += strlen(pos);
if (i == 2 || i == 4)
*pos++ = '.';
}
if (id_len >= NODE_ID_LEN) {
- snprintf(pos, sizeof(id) - (pos - id), ".%02x", *cp++);
+ snprintf(pos, sizeof(id) - (pos - id), ".%02x", EXTRACT_U_1(cp));
+ cp++;
pos += strlen(pos);
}
if (id_len == LSP_ID_LEN)
- snprintf(pos, sizeof(id) - (pos - id), "-%02x", *cp);
+ snprintf(pos, sizeof(id) - (pos - id), "-%02x", EXTRACT_U_1(cp));
return (id);
}
isis_print_metric_block(netdissect_options *ndo,
const struct isis_metric_block *isis_metric_block)
{
- ND_PRINT((ndo, ", Default Metric: %d, %s",
+ ND_PRINT((ndo, ", Default Metric: %u, %s",
ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_default),
ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_default) ? "External" : "Internal"));
if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_delay))
- ND_PRINT((ndo, "\n\t\t Delay Metric: %d, %s",
+ ND_PRINT((ndo, "\n\t\t Delay Metric: %u, %s",
ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_delay),
ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_delay) ? "External" : "Internal"));
if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_expense))
- ND_PRINT((ndo, "\n\t\t Expense Metric: %d, %s",
+ ND_PRINT((ndo, "\n\t\t Expense Metric: %u, %s",
ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_expense),
ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_expense) ? "External" : "Internal"));
if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_error))
- ND_PRINT((ndo, "\n\t\t Error Metric: %d, %s",
+ ND_PRINT((ndo, "\n\t\t Error Metric: %u, %s",
ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_error),
ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_error) ? "External" : "Internal"));
static int
isis_print_tlv_ip_reach(netdissect_options *ndo,
- const uint8_t *cp, const char *ident, int length)
+ const uint8_t *cp, const char *ident, u_int length)
{
int prefix_len;
const struct isis_tlv_ip_reach *tlv_ip_reach;
while (length > 0) {
if ((size_t)length < sizeof(*tlv_ip_reach)) {
- ND_PRINT((ndo, "short IPv4 Reachability (%d vs %lu)",
+ ND_PRINT((ndo, "short IPv4 Reachability (%u vs %lu)",
length,
(unsigned long)sizeof(*tlv_ip_reach)));
return (0);
if (!ND_TTEST(*tlv_ip_reach))
return (0);
- prefix_len = mask2plen(EXTRACT_BE_U_4(tlv_ip_reach->mask));
+ prefix_len = mask2plen(EXTRACT_IPV4_TO_HOST_ORDER(tlv_ip_reach->mask));
if (prefix_len == -1)
ND_PRINT((ndo, "%sIPv4 prefix: %s mask %s",
static int
isis_print_ip_reach_subtlv(netdissect_options *ndo,
- const uint8_t *tptr, int subt, int subl,
+ const uint8_t *tptr, u_int subt, u_int subl,
const char *ident)
{
/* first lets see if we know the subTLVs name*/
ident, tok2str(isis_ext_ip_reach_subtlv_values, "unknown", subt),
subt, subl));
- ND_TCHECK2(*tptr,subl);
+ ND_TCHECK_LEN(tptr, subl);
switch(subt) {
case ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR: /* fall through */
return(0);
}
-/*
- * this is the common IS-REACH subTLV decoder it is called
- * from isis_print_ext_is_reach()
- */
-
-static int
-isis_print_is_reach_subtlv(netdissect_options *ndo,
- const uint8_t *tptr, u_int subt, u_int subl,
- const char *ident)
-{
- u_int te_class,priority_level,gmpls_switch_cap;
- union { /* int to float conversion buffer for several subTLVs */
- float f;
- uint32_t i;
- } bw;
-
- /* first lets see if we know the subTLVs name*/
- ND_PRINT((ndo, "%s%s subTLV #%u, length: %u",
- ident, tok2str(isis_ext_is_reach_subtlv_values, "unknown", subt),
- subt, subl));
-
- ND_TCHECK2(*tptr, subl);
-
- switch(subt) {
- case ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP:
- case ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID:
- case ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID:
- if (subl >= 4) {
- ND_PRINT((ndo, ", 0x%08x", EXTRACT_BE_U_4(tptr)));
- if (subl == 8) /* rfc4205 */
- ND_PRINT((ndo, ", 0x%08x", EXTRACT_BE_U_4(tptr + 4)));
- }
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR:
- case ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR:
- if (subl >= sizeof(struct in_addr))
- ND_PRINT((ndo, ", %s", ipaddr_string(ndo, tptr)));
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW :
- case ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW:
- if (subl >= 4) {
- bw.i = EXTRACT_BE_U_4(tptr);
- ND_PRINT((ndo, ", %.3f Mbps", bw.f * 8 / 1000000));
- }
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW :
- if (subl >= 32) {
- for (te_class = 0; te_class < 8; te_class++) {
- bw.i = EXTRACT_BE_U_4(tptr);
- ND_PRINT((ndo, "%s TE-Class %u: %.3f Mbps",
- ident,
- te_class,
- bw.f * 8 / 1000000));
- tptr+=4;
- }
- }
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS: /* fall through */
- case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD:
- if (subl == 0)
- break;
- ND_PRINT((ndo, "%sBandwidth Constraints Model ID: %s (%u)",
- ident,
- tok2str(diffserv_te_bc_values, "unknown", EXTRACT_U_1(tptr)),
- EXTRACT_U_1(tptr)));
- tptr++;
- /* decode BCs until the subTLV ends */
- for (te_class = 0; te_class < (subl-1)/4; te_class++) {
- bw.i = EXTRACT_BE_U_4(tptr);
- ND_PRINT((ndo, "%s Bandwidth constraint CT%u: %.3f Mbps",
- ident,
- te_class,
- bw.f * 8 / 1000000));
- tptr+=4;
- }
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC:
- if (subl >= 3)
- ND_PRINT((ndo, ", %u", EXTRACT_BE_U_3(tptr)));
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_LINK_ATTRIBUTE:
- if (subl == 2) {
- ND_PRINT((ndo, ", [ %s ] (0x%04x)",
- bittok2str(isis_subtlv_link_attribute_values,
- "Unknown",
- EXTRACT_BE_U_2(tptr)),
- EXTRACT_BE_U_2(tptr)));
- }
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE:
- if (subl >= 2) {
- ND_PRINT((ndo, ", %s, Priority %u",
- bittok2str(gmpls_link_prot_values, "none", EXTRACT_U_1(tptr)),
- EXTRACT_U_1(tptr + 1)));
- }
- break;
- case ISIS_SUBTLV_SPB_METRIC:
- if (subl >= 6) {
- ND_PRINT((ndo, ", LM: %u", EXTRACT_BE_U_3(tptr)));
- tptr=tptr+3;
- ND_PRINT((ndo, ", P: %u", EXTRACT_U_1(tptr)));
- tptr++;
- ND_PRINT((ndo, ", P-ID: %u", EXTRACT_BE_U_2(tptr)));
- }
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR:
- if (subl >= 36) {
- gmpls_switch_cap = EXTRACT_U_1(tptr);
- ND_PRINT((ndo, "%s Interface Switching Capability:%s",
- ident,
- tok2str(gmpls_switch_cap_values, "Unknown", gmpls_switch_cap)));
- ND_PRINT((ndo, ", LSP Encoding: %s",
- tok2str(gmpls_encoding_values, "Unknown", EXTRACT_U_1((tptr + 1)))));
- tptr+=4;
- ND_PRINT((ndo, "%s Max LSP Bandwidth:", ident));
- for (priority_level = 0; priority_level < 8; priority_level++) {
- bw.i = EXTRACT_BE_U_4(tptr);
- ND_PRINT((ndo, "%s priority level %d: %.3f Mbps",
- ident,
- priority_level,
- bw.f * 8 / 1000000));
- tptr+=4;
- }
- subl-=36;
- switch (gmpls_switch_cap) {
- case GMPLS_PSC1:
- case GMPLS_PSC2:
- case GMPLS_PSC3:
- case GMPLS_PSC4:
- if (subl < 6)
- break;
- bw.i = EXTRACT_BE_U_4(tptr);
- ND_PRINT((ndo, "%s Min LSP Bandwidth: %.3f Mbps", ident, bw.f * 8 / 1000000));
- ND_PRINT((ndo, "%s Interface MTU: %u", ident, EXTRACT_BE_U_2(tptr + 4)));
- break;
- case GMPLS_TSC:
- if (subl < 8)
- break;
- bw.i = EXTRACT_BE_U_4(tptr);
- ND_PRINT((ndo, "%s Min LSP Bandwidth: %.3f Mbps", ident, bw.f * 8 / 1000000));
- ND_PRINT((ndo, "%s Indication %s", ident,
- tok2str(gmpls_switch_cap_tsc_indication_values, "Unknown (%u)", EXTRACT_U_1((tptr + 4)))));
- break;
- default:
- /* there is some optional stuff left to decode but this is as of yet
- not specified so just lets hexdump what is left */
- if(subl>0){
- if (!print_unknown_data(ndo, tptr, "\n\t\t ", subl))
- return(0);
- }
- }
- }
- break;
- default:
- if (!print_unknown_data(ndo, tptr, "\n\t\t ", subl))
- return(0);
- break;
- }
- return(1);
-
-trunc:
- return(0);
-}
-
/*
* this is the common IS-REACH decoder it is called
* from various EXTD-IS REACH style TLVs (22,24,222)
static int
isis_print_ext_is_reach(netdissect_options *ndo,
- const uint8_t *tptr, const char *ident, int tlv_type)
+ const uint8_t *tptr, const char *ident, u_int tlv_type,
+ u_int tlv_remaining)
{
char ident_buffer[20];
- int subtlv_type,subtlv_len,subtlv_sum_len;
+ u_int subtlv_type,subtlv_len,subtlv_sum_len;
int proc_bytes = 0; /* how many bytes did we process ? */
+ u_int te_class,priority_level,gmpls_switch_cap;
+ union { /* int to float conversion buffer for several subTLVs */
+ float f;
+ uint32_t i;
+ } bw;
- if (!ND_TTEST2(*tptr, NODE_ID_LEN))
+ if (!ND_TTEST_LEN(tptr, NODE_ID_LEN))
+ return(0);
+ if (tlv_remaining < NODE_ID_LEN)
return(0);
ND_PRINT((ndo, "%sIS Neighbor: %s", ident, isis_print_id(tptr, NODE_ID_LEN)));
tptr+=NODE_ID_LEN;
+ tlv_remaining-=NODE_ID_LEN;
if (tlv_type != ISIS_TLV_IS_ALIAS_ID) { /* the Alias TLV Metric field is implicit 0 */
if (!ND_TTEST_3(tptr)) /* and is therefore skipped */
return(0);
- ND_PRINT((ndo, ", Metric: %d", EXTRACT_BE_U_3(tptr)));
+ if (tlv_remaining < 3)
+ return(0);
+ ND_PRINT((ndo, ", Metric: %u", EXTRACT_BE_U_3(tptr)));
tptr+=3;
+ tlv_remaining-=3;
}
if (!ND_TTEST_1(tptr))
return(0);
+ if (tlv_remaining < 1)
+ return(0);
subtlv_sum_len=EXTRACT_U_1(tptr); /* read out subTLV length */
tptr++;
+ tlv_remaining--;
proc_bytes=NODE_ID_LEN+3+1;
ND_PRINT((ndo, ", %ssub-TLVs present",subtlv_sum_len ? "" : "no "));
if (subtlv_sum_len) {
ND_PRINT((ndo, " (%u)", subtlv_sum_len));
- while (subtlv_sum_len>0) {
+ /* prepend the indent string */
+ snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident);
+ ident = ident_buffer;
+ while (subtlv_sum_len != 0) {
if (!ND_TTEST_2(tptr))
return(0);
+ if (tlv_remaining < 2) {
+ ND_PRINT((ndo, "%sRemaining data in TLV shorter than a subTLV header",ident));
+ proc_bytes += tlv_remaining;
+ break;
+ }
+ if (subtlv_sum_len < 2) {
+ ND_PRINT((ndo, "%sRemaining data in subTLVs shorter than a subTLV header",ident));
+ proc_bytes += subtlv_sum_len;
+ break;
+ }
subtlv_type=EXTRACT_U_1(tptr);
subtlv_len=EXTRACT_U_1(tptr + 1);
- tptr+=2;
- /* prepend the indent string */
- snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident);
- if (!isis_print_is_reach_subtlv(ndo, tptr, subtlv_type, subtlv_len, ident_buffer))
- return(0);
- tptr+=subtlv_len;
- subtlv_sum_len-=(subtlv_len+2);
- proc_bytes+=(subtlv_len+2);
+ tptr += 2;
+ tlv_remaining -= 2;
+ subtlv_sum_len -= 2;
+ proc_bytes += 2;
+ ND_PRINT((ndo, "%s%s subTLV #%u, length: %u",
+ ident, tok2str(isis_ext_is_reach_subtlv_values, "unknown", subtlv_type),
+ subtlv_type, subtlv_len));
+
+ if (subtlv_sum_len < subtlv_len) {
+ ND_PRINT((ndo, " (remaining data in subTLVs shorter than the current subTLV)"));
+ proc_bytes += subtlv_sum_len;
+ break;
+ }
+
+ if (tlv_remaining < subtlv_len) {
+ ND_PRINT((ndo, " (> remaining tlv length)"));
+ proc_bytes += tlv_remaining;
+ break;
+ }
+
+ ND_TCHECK_LEN(tptr, subtlv_len);
+
+ switch(subtlv_type) {
+ case ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP:
+ case ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID:
+ case ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID:
+ if (subtlv_len >= 4) {
+ ND_PRINT((ndo, ", 0x%08x", EXTRACT_BE_U_4(tptr)));
+ if (subtlv_len == 8) /* rfc4205 */
+ ND_PRINT((ndo, ", 0x%08x", EXTRACT_BE_U_4(tptr + 4)));
+ }
+ break;
+ case ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR:
+ case ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR:
+ if (subtlv_len >= sizeof(struct in_addr))
+ ND_PRINT((ndo, ", %s", ipaddr_string(ndo, tptr)));
+ break;
+ case ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW :
+ case ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW:
+ if (subtlv_len >= 4) {
+ bw.i = EXTRACT_BE_U_4(tptr);
+ ND_PRINT((ndo, ", %.3f Mbps", bw.f * 8 / 1000000));
+ }
+ break;
+ case ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW :
+ if (subtlv_len >= 32) {
+ for (te_class = 0; te_class < 8; te_class++) {
+ bw.i = EXTRACT_BE_U_4(tptr);
+ ND_PRINT((ndo, "%s TE-Class %u: %.3f Mbps",
+ ident,
+ te_class,
+ bw.f * 8 / 1000000));
+ tptr += 4;
+ subtlv_len -= 4;
+ subtlv_sum_len -= 4;
+ proc_bytes += 4;
+ }
+ }
+ break;
+ case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS: /* fall through */
+ case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD:
+ if (subtlv_len == 0)
+ break;
+ ND_PRINT((ndo, "%sBandwidth Constraints Model ID: %s (%u)",
+ ident,
+ tok2str(diffserv_te_bc_values, "unknown", EXTRACT_U_1(tptr)),
+ EXTRACT_U_1(tptr)));
+ tptr++;
+ subtlv_len--;
+ subtlv_sum_len--;
+ proc_bytes++;
+ /* decode BCs until the subTLV ends */
+ for (te_class = 0; subtlv_len != 0; te_class++) {
+ if (subtlv_len < 4)
+ break;
+ bw.i = EXTRACT_BE_U_4(tptr);
+ ND_PRINT((ndo, "%s Bandwidth constraint CT%u: %.3f Mbps",
+ ident,
+ te_class,
+ bw.f * 8 / 1000000));
+ tptr += 4;
+ subtlv_len -= 4;
+ subtlv_sum_len -= 4;
+ proc_bytes += 4;
+ }
+ break;
+ case ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC:
+ if (subtlv_len >= 3)
+ ND_PRINT((ndo, ", %u", EXTRACT_BE_U_3(tptr)));
+ break;
+ case ISIS_SUBTLV_EXT_IS_REACH_LINK_ATTRIBUTE:
+ if (subtlv_len == 2) {
+ ND_PRINT((ndo, ", [ %s ] (0x%04x)",
+ bittok2str(isis_subtlv_link_attribute_values,
+ "Unknown",
+ EXTRACT_BE_U_2(tptr)),
+ EXTRACT_BE_U_2(tptr)));
+ }
+ break;
+ case ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE:
+ if (subtlv_len >= 2) {
+ ND_PRINT((ndo, ", %s, Priority %u",
+ bittok2str(gmpls_link_prot_values, "none", EXTRACT_U_1(tptr)),
+ EXTRACT_U_1(tptr + 1)));
+ }
+ break;
+ case ISIS_SUBTLV_SPB_METRIC:
+ if (subtlv_len >= 6) {
+ ND_PRINT((ndo, ", LM: %u", EXTRACT_BE_U_3(tptr)));
+ tptr += 3;
+ subtlv_len -= 3;
+ subtlv_sum_len -= 3;
+ proc_bytes += 3;
+ ND_PRINT((ndo, ", P: %u", EXTRACT_U_1(tptr)));
+ tptr++;
+ subtlv_len--;
+ subtlv_sum_len--;
+ proc_bytes++;
+ ND_PRINT((ndo, ", P-ID: %u", EXTRACT_BE_U_2(tptr)));
+ }
+ break;
+ case ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR:
+ if (subtlv_len >= 36) {
+ gmpls_switch_cap = EXTRACT_U_1(tptr);
+ ND_PRINT((ndo, "%s Interface Switching Capability:%s",
+ ident,
+ tok2str(gmpls_switch_cap_values, "Unknown", gmpls_switch_cap)));
+ ND_PRINT((ndo, ", LSP Encoding: %s",
+ tok2str(gmpls_encoding_values, "Unknown", EXTRACT_U_1((tptr + 1)))));
+ tptr += 4;
+ subtlv_len -= 4;
+ subtlv_sum_len -= 4;
+ proc_bytes += 4;
+ ND_PRINT((ndo, "%s Max LSP Bandwidth:", ident));
+ for (priority_level = 0; priority_level < 8; priority_level++) {
+ bw.i = EXTRACT_BE_U_4(tptr);
+ ND_PRINT((ndo, "%s priority level %u: %.3f Mbps",
+ ident,
+ priority_level,
+ bw.f * 8 / 1000000));
+ tptr += 4;
+ subtlv_len -= 4;
+ subtlv_sum_len -= 4;
+ proc_bytes += 4;
+ }
+ switch (gmpls_switch_cap) {
+ case GMPLS_PSC1:
+ case GMPLS_PSC2:
+ case GMPLS_PSC3:
+ case GMPLS_PSC4:
+ if (subtlv_len < 6)
+ break;
+ bw.i = EXTRACT_BE_U_4(tptr);
+ ND_PRINT((ndo, "%s Min LSP Bandwidth: %.3f Mbps", ident, bw.f * 8 / 1000000));
+ ND_PRINT((ndo, "%s Interface MTU: %u", ident, EXTRACT_BE_U_2(tptr + 4)));
+ break;
+ case GMPLS_TSC:
+ if (subtlv_len < 8)
+ break;
+ bw.i = EXTRACT_BE_U_4(tptr);
+ ND_PRINT((ndo, "%s Min LSP Bandwidth: %.3f Mbps", ident, bw.f * 8 / 1000000));
+ ND_PRINT((ndo, "%s Indication %s", ident,
+ tok2str(gmpls_switch_cap_tsc_indication_values, "Unknown (%u)", EXTRACT_U_1((tptr + 4)))));
+ break;
+ default:
+ /* there is some optional stuff left to decode but this is as of yet
+ not specified so just lets hexdump what is left */
+ if (subtlv_len != 0) {
+ if (!print_unknown_data(ndo, tptr, "\n\t\t ", subtlv_len))
+ return(0);
+ }
+ }
+ }
+ break;
+ default:
+ if (!print_unknown_data(ndo, tptr, "\n\t\t ", subtlv_len))
+ return(0);
+ break;
+ }
+
+ tptr += subtlv_len;
+ tlv_remaining -= subtlv_len;
+ subtlv_sum_len -= subtlv_len;
+ proc_bytes += subtlv_len;
}
}
return(proc_bytes);
+
+trunc:
+ return(0);
}
/*
byte_length = (bit_length + 7) / 8; /* prefix has variable length encoding */
- if (!ND_TTEST2(*tptr, byte_length))
+ if (!ND_TTEST_LEN(tptr, byte_length))
return (0);
memset(prefix, 0, sizeof prefix); /* clear the copy buffer */
memcpy(prefix,tptr,byte_length); /* copy as much as is stored in the TLV */
if ((afi == AF_INET && ISIS_MASK_TLV_EXTD_IP_SUBTLV(status_byte))
|| (afi == AF_INET6 && ISIS_MASK_TLV_EXTD_IP6_SUBTLV(status_byte))
- ) {
+ ) {
/* assume that one prefix can hold more
than one subTLV - therefore the first byte must reflect
the aggregate bytecount of the subTLVs for this prefix
const struct isis_tlv_is_reach *tlv_is_reach;
const struct isis_tlv_es_reach *tlv_es_reach;
- uint8_t pdu_type, max_area, id_length, tlv_type, tlv_len, tmp, alen, lan_alen, prefix_len;
+ uint8_t version, pdu_version, fixed_len;
+ uint8_t pdu_type, pdu_max_area, max_area, pdu_id_length, id_length, tlv_type, tlv_len, tmp, alen, lan_alen, prefix_len;
uint8_t ext_is_len, ext_ip_len, mt_len;
uint8_t isis_subtlv_idrp;
const uint8_t *optr, *pptr, *tptr;
* Sanity checking of the header.
*/
- if (isis_header->version != ISIS_VERSION) {
- ND_PRINT((ndo, "version %d packet not supported", isis_header->version));
+ version = EXTRACT_U_1(isis_header->version);
+ if (version != ISIS_VERSION) {
+ ND_PRINT((ndo, "version %u packet not supported", version));
return (0);
}
- if ((isis_header->id_length != SYSTEM_ID_LEN) && (isis_header->id_length != 0)) {
- ND_PRINT((ndo, "system ID length of %d is not supported",
- isis_header->id_length));
+ pdu_id_length = EXTRACT_U_1(isis_header->id_length);
+ if ((pdu_id_length != SYSTEM_ID_LEN) && (pdu_id_length != 0)) {
+ ND_PRINT((ndo, "system ID length of %u is not supported",
+ pdu_id_length));
return (0);
}
- if (isis_header->pdu_version != ISIS_VERSION) {
- ND_PRINT((ndo, "version %d packet not supported", isis_header->pdu_version));
+ pdu_version = EXTRACT_U_1(isis_header->pdu_version);
+ if (pdu_version != ISIS_VERSION) {
+ ND_PRINT((ndo, "version %u packet not supported", pdu_version));
return (0);
}
- if (length < isis_header->fixed_len) {
- ND_PRINT((ndo, "fixed header length %u > packet length %u", isis_header->fixed_len, length));
+ fixed_len = EXTRACT_U_1(isis_header->fixed_len);
+ if (length < fixed_len) {
+ ND_PRINT((ndo, "fixed header length %u > packet length %u", fixed_len, length));
return (0);
}
- if (isis_header->fixed_len < ISIS_COMMON_HEADER_SIZE) {
- ND_PRINT((ndo, "fixed header length %u < minimum header size %u", isis_header->fixed_len, (u_int)ISIS_COMMON_HEADER_SIZE));
+ if (fixed_len < ISIS_COMMON_HEADER_SIZE) {
+ ND_PRINT((ndo, "fixed header length %u < minimum header size %u", fixed_len, (u_int)ISIS_COMMON_HEADER_SIZE));
return (0);
}
- max_area = isis_header->max_area;
- switch(max_area) {
+ pdu_max_area = EXTRACT_U_1(isis_header->max_area);
+ switch(pdu_max_area) {
case 0:
max_area = 3; /* silly shit */
break;
ND_PRINT((ndo, "bad packet -- 255 areas"));
return (0);
default:
+ max_area = pdu_max_area;
break;
}
- id_length = isis_header->id_length;
- switch(id_length) {
+ switch(pdu_id_length) {
case 0:
id_length = 6; /* silly shit again */
break;
case 6:
case 7:
case 8:
+ id_length = pdu_id_length;
break;
case 255:
id_length = 0; /* entirely useless */
break;
default:
+ id_length = pdu_id_length;
break;
}
return (0);
}
- pdu_type=isis_header->pdu_type;
+ pdu_type = EXTRACT_U_1(isis_header->pdu_type);
/* in non-verbose mode print the basic PDU Type plus PDU specific brief information*/
if (ndo->ndo_vflag == 0) {
tok2str(isis_pdu_values,
"unknown, type %u",
pdu_type),
- isis_header->fixed_len,
- isis_header->version,
- isis_header->pdu_version,
+ fixed_len,
+ version,
+ pdu_version,
id_length,
- isis_header->id_length,
+ pdu_id_length,
max_area,
- isis_header->max_area));
+ pdu_max_area));
if (ndo->ndo_vflag > 1) {
if (!print_unknown_data(ndo, optr, "\n\t", 8)) /* provide the _o_riginal pointer */
case ISIS_PDU_L1_LAN_IIH:
case ISIS_PDU_L2_LAN_IIH:
- if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE)) {
+ if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE)) {
ND_PRINT((ndo, ", bogus fixed header length %u should be %lu",
- isis_header->fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE)));
+ fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE)));
return (0);
}
ND_TCHECK(*header_iih_lan);
isis_print_id(header_iih_lan->source_id, SYSTEM_ID_LEN)));
ND_PRINT((ndo, ", lan-id %s, prio %u",
isis_print_id(header_iih_lan->lan_id,NODE_ID_LEN),
- header_iih_lan->priority));
+ EXTRACT_U_1(header_iih_lan->priority)));
ND_PRINT((ndo, ", length %u", length));
return (1);
}
EXTRACT_BE_U_2(header_iih_lan->holding_time),
tok2str(isis_iih_circuit_type_values,
"unknown circuit type 0x%02x",
- header_iih_lan->circuit_type)));
+ EXTRACT_U_1(header_iih_lan->circuit_type))));
ND_PRINT((ndo, "\n\t lan-id: %s, Priority: %u, PDU length: %u",
isis_print_id(header_iih_lan->lan_id, NODE_ID_LEN),
- (header_iih_lan->priority) & ISIS_LAN_PRIORITY_MASK,
+ EXTRACT_U_1(header_iih_lan->priority) & ISIS_LAN_PRIORITY_MASK,
pdu_len));
if (ndo->ndo_vflag > 1) {
break;
case ISIS_PDU_PTP_IIH:
- if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE)) {
+ if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE)) {
ND_PRINT((ndo, ", bogus fixed header length %u should be %lu",
- isis_header->fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE)));
+ fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE)));
return (0);
}
ND_TCHECK(*header_iih_ptp);
EXTRACT_BE_U_2(header_iih_ptp->holding_time),
tok2str(isis_iih_circuit_type_values,
"unknown circuit type 0x%02x",
- header_iih_ptp->circuit_type)));
+ EXTRACT_U_1(header_iih_ptp->circuit_type))));
ND_PRINT((ndo, "\n\t circuit-id: 0x%02x, PDU length: %u",
- header_iih_ptp->circuit_id,
+ EXTRACT_U_1(header_iih_ptp->circuit_id),
pdu_len));
if (ndo->ndo_vflag > 1) {
case ISIS_PDU_L1_LSP:
case ISIS_PDU_L2_LSP:
- if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE)) {
+ if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE)) {
ND_PRINT((ndo, ", bogus fixed header length %u should be %lu",
- isis_header->fixed_len, (unsigned long)ISIS_LSP_HEADER_SIZE));
+ fixed_len, (unsigned long)ISIS_LSP_HEADER_SIZE));
return (0);
}
ND_TCHECK(*header_lsp);
case ISIS_PDU_L1_CSNP:
case ISIS_PDU_L2_CSNP:
- if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE)) {
+ if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE)) {
ND_PRINT((ndo, ", bogus fixed header length %u should be %lu",
- isis_header->fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE)));
+ fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE)));
return (0);
}
ND_TCHECK(*header_csnp);
case ISIS_PDU_L1_PSNP:
case ISIS_PDU_L2_PSNP:
- if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE)) {
+ if (fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE)) {
ND_PRINT((ndo, "- bogus fixed header length %u should be %lu",
- isis_header->fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE)));
+ fixed_len, (unsigned long)(ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE)));
return (0);
}
ND_TCHECK(*header_psnp);
alen = EXTRACT_U_1(tptr);
tptr++;
while (tmp && alen < tmp) {
- ND_TCHECK2(*tptr, alen);
+ ND_TCHECK_LEN(tptr, alen);
ND_PRINT((ndo, "\n\t Area address (length: %u): %s",
alen,
isonsap_string(ndo, tptr, alen)));
}
break;
case ISIS_TLV_ISNEIGH:
- while (tmp >= ETHER_ADDR_LEN) {
- ND_TCHECK2(*tptr, ETHER_ADDR_LEN);
- ND_PRINT((ndo, "\n\t SNPA: %s", isis_print_id(tptr, ETHER_ADDR_LEN)));
- tmp -= ETHER_ADDR_LEN;
- tptr += ETHER_ADDR_LEN;
+ while (tmp >= MAC_ADDR_LEN) {
+ ND_TCHECK_LEN(tptr, MAC_ADDR_LEN);
+ ND_PRINT((ndo, "\n\t SNPA: %s", isis_print_id(tptr, MAC_ADDR_LEN)));
+ tmp -= MAC_ADDR_LEN;
+ tptr += MAC_ADDR_LEN;
}
break;
tmp --;
ND_PRINT((ndo, "\n\t LAN address length %u bytes ", lan_alen));
while (tmp >= lan_alen) {
- ND_TCHECK2(*tptr, lan_alen);
+ ND_TCHECK_LEN(tptr, lan_alen);
ND_PRINT((ndo, "\n\t\tIS Neighbor: %s", isis_print_id(tptr, lan_alen)));
tmp -= lan_alen;
tptr +=lan_alen;
tptr+=mt_len;
tmp-=mt_len;
while (tmp >= 2+NODE_ID_LEN+3+1) {
- ext_is_len = isis_print_ext_is_reach(ndo, tptr, "\n\t ", tlv_type);
+ ext_is_len = isis_print_ext_is_reach(ndo, tptr, "\n\t ", tlv_type, tmp);
if (ext_is_len == 0) /* did something go wrong ? */
goto trunctlv;
case ISIS_TLV_IS_ALIAS_ID:
while (tmp >= NODE_ID_LEN+1) { /* is it worth attempting a decode ? */
- ext_is_len = isis_print_ext_is_reach(ndo, tptr, "\n\t ", tlv_type);
+ ext_is_len = isis_print_ext_is_reach(ndo, tptr, "\n\t ", tlv_type, tmp);
if (ext_is_len == 0) /* did something go wrong ? */
goto trunctlv;
tmp-=ext_is_len;
case ISIS_TLV_EXT_IS_REACH:
while (tmp >= NODE_ID_LEN+3+1) { /* is it worth attempting a decode ? */
- ext_is_len = isis_print_ext_is_reach(ndo, tptr, "\n\t ", tlv_type);
+ ext_is_len = isis_print_ext_is_reach(ndo, tptr, "\n\t ", tlv_type, tmp);
if (ext_is_len == 0) /* did something go wrong ? */
goto trunctlv;
tmp-=ext_is_len;
case ISIS_TLV_IP6ADDR:
while (tmp>=sizeof(struct in6_addr)) {
- ND_TCHECK2(*tptr, sizeof(struct in6_addr));
+ ND_TCHECK_LEN(tptr, sizeof(struct in6_addr));
ND_PRINT((ndo, "\n\t IPv6 interface address: %s",
ip6addr_string(ndo, tptr)));
tmp-=sizeof(tlv_ptp_adj->extd_local_circuit_id);
}
if(tmp>=SYSTEM_ID_LEN) {
- ND_TCHECK2(tlv_ptp_adj->neighbor_sysid, SYSTEM_ID_LEN);
+ ND_TCHECK_LEN(tlv_ptp_adj->neighbor_sysid, SYSTEM_ID_LEN);
ND_PRINT((ndo, "\n\t Neighbor System-ID: %s",
isis_print_id(tlv_ptp_adj->neighbor_sysid, SYSTEM_ID_LEN)));
tmp-=SYSTEM_ID_LEN;
{
ND_TCHECK_2(tptr);
- ND_PRINT((ndo, "\n\t RES: %d, MTID(s): %d",
+ ND_PRINT((ndo, "\n\t RES: %u, MTID(s): %u",
(EXTRACT_BE_U_2(tptr) >> 12),
(EXTRACT_BE_U_2(tptr) & 0x0fff)));
ND_TCHECK_2(tptr);
- ND_PRINT((ndo, "\n\t O: %d, RES: %d, MTID(s): %d",
+ ND_PRINT((ndo, "\n\t O: %u, RES: %u, MTID(s): %u",
(EXTRACT_BE_U_2(tptr) >> 15) & 0x01,
(EXTRACT_BE_U_2(tptr) >> 12) & 0x07,
EXTRACT_BE_U_2(tptr) & 0x0fff));
break;
case ISIS_TLV_TE_ROUTER_ID:
- ND_TCHECK2(*pptr, sizeof(struct in_addr));
+ ND_TCHECK_LEN(pptr, sizeof(struct in_addr));
ND_PRINT((ndo, "\n\t Traffic Engineering Router ID: %s", ipaddr_string(ndo, pptr)));
break;
case ISIS_TLV_IPADDR:
while (tmp>=sizeof(struct in_addr)) {
- ND_TCHECK2(*tptr, sizeof(struct in_addr));
+ ND_TCHECK_LEN(tptr, sizeof(struct in_addr));
ND_PRINT((ndo, "\n\t IPv4 interface address: %s", ipaddr_string(ndo, tptr)));
tptr += sizeof(struct in_addr);
tmp -= sizeof(struct in_addr);
case ISIS_TLV_SHARED_RISK_GROUP:
if (tmp < NODE_ID_LEN)
break;
- ND_TCHECK2(*tptr, NODE_ID_LEN);
+ ND_TCHECK_LEN(tptr, NODE_ID_LEN);
ND_PRINT((ndo, "\n\t IS Neighbor: %s", isis_print_id(tptr, NODE_ID_LEN)));
tptr+=NODE_ID_LEN;
tmp-=NODE_ID_LEN;
if (tmp < sizeof(struct in_addr))
break;
- ND_TCHECK2(*tptr, sizeof(struct in_addr));
+ ND_TCHECK_LEN(tptr, sizeof(struct in_addr));
ND_PRINT((ndo, "\n\t IPv4 interface address: %s", ipaddr_string(ndo, tptr)));
tptr+=sizeof(struct in_addr);
tmp-=sizeof(struct in_addr);
if (tmp < sizeof(struct in_addr))
break;
- ND_TCHECK2(*tptr, sizeof(struct in_addr));
+ ND_TCHECK_LEN(tptr, sizeof(struct in_addr));
ND_PRINT((ndo, "\n\t IPv4 neighbor address: %s", ipaddr_string(ndo, tptr)));
tptr+=sizeof(struct in_addr);
tmp-=sizeof(struct in_addr);
ND_TCHECK((tlv_lsp->lsp_id)[LSP_ID_LEN-1]);
ND_PRINT((ndo, "\n\t lsp-id: %s",
isis_print_id(tlv_lsp->lsp_id, LSP_ID_LEN)));
- ND_TCHECK2(tlv_lsp->sequence_number, 4);
+ ND_TCHECK_LEN(tlv_lsp->sequence_number, 4);
ND_PRINT((ndo, ", seq: 0x%08x", EXTRACT_BE_U_4(tlv_lsp->sequence_number)));
- ND_TCHECK2(tlv_lsp->remaining_lifetime, 2);
+ ND_TCHECK_LEN(tlv_lsp->remaining_lifetime, 2);
ND_PRINT((ndo, ", lifetime: %5ds", EXTRACT_BE_U_2(tlv_lsp->remaining_lifetime)));
- ND_TCHECK2(tlv_lsp->checksum, 2);
+ ND_TCHECK_LEN(tlv_lsp->checksum, 2);
ND_PRINT((ndo, ", chksum: 0x%04x", EXTRACT_BE_U_2(tlv_lsp->checksum)));
tmp-=sizeof(struct isis_tlv_lsp);
tlv_lsp++;
case ISIS_TLV_CHECKSUM:
if (tmp < ISIS_TLV_CHECKSUM_MINLEN)
break;
- ND_TCHECK2(*tptr, ISIS_TLV_CHECKSUM_MINLEN);
+ ND_TCHECK_LEN(tptr, ISIS_TLV_CHECKSUM_MINLEN);
ND_PRINT((ndo, "\n\t checksum: 0x%04x ", EXTRACT_BE_U_2(tptr)));
/* do not attempt to verify the checksum if it is zero
* most likely a HMAC-MD5 TLV is also present and
case ISIS_TLV_POI:
if (tlv_len >= SYSTEM_ID_LEN + 1) {
- ND_TCHECK2(*tptr, SYSTEM_ID_LEN + 1);
+ ND_TCHECK_LEN(tptr, SYSTEM_ID_LEN + 1);
ND_PRINT((ndo, "\n\t Purge Originator System-ID: %s",
isis_print_id(tptr + 1, SYSTEM_ID_LEN)));
}
if (tlv_len == 2 * SYSTEM_ID_LEN + 1) {
- ND_TCHECK2(*tptr, 2 * SYSTEM_ID_LEN + 1);
+ ND_TCHECK_LEN(tptr, 2 * SYSTEM_ID_LEN + 1);
ND_PRINT((ndo, "\n\t Received from System-ID: %s",
isis_print_id(tptr + SYSTEM_ID_LEN + 1, SYSTEM_ID_LEN)));
}
/* first attempt to decode the flags */
if (tmp < ISIS_TLV_RESTART_SIGNALING_FLAGLEN)
break;
- ND_TCHECK2(*tptr, ISIS_TLV_RESTART_SIGNALING_FLAGLEN);
+ ND_TCHECK_LEN(tptr, ISIS_TLV_RESTART_SIGNALING_FLAGLEN);
ND_PRINT((ndo, "\n\t Flags [%s]",
bittok2str(isis_restart_flag_values, "none", EXTRACT_U_1(tptr))));
tptr+=ISIS_TLV_RESTART_SIGNALING_FLAGLEN;
if (tmp < ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN)
break;
- ND_TCHECK2(*tptr, ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN);
+ ND_TCHECK_LEN(tptr, ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN);
ND_PRINT((ndo, ", Remaining holding time %us", EXTRACT_BE_U_2(tptr)));
tptr+=ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN;
/* is there an additional sysid field present ?*/
if (tmp == SYSTEM_ID_LEN) {
- ND_TCHECK2(*tptr, SYSTEM_ID_LEN);
+ ND_TCHECK_LEN(tptr, SYSTEM_ID_LEN);
ND_PRINT((ndo, ", for %s", isis_print_id(tptr,SYSTEM_ID_LEN)));
}
break;
case ISIS_TLV_IDRP_INFO:
if (tmp < ISIS_TLV_IDRP_INFO_MINLEN)
break;
- ND_TCHECK2(*tptr, ISIS_TLV_IDRP_INFO_MINLEN);
+ ND_TCHECK_LEN(tptr, ISIS_TLV_IDRP_INFO_MINLEN);
ND_PRINT((ndo, "\n\t Inter-Domain Information Type: %s",
tok2str(isis_subtlv_idrp_values,
"Unknown (0x%02x)",
case ISIS_TLV_LSP_BUFFERSIZE:
if (tmp < ISIS_TLV_LSP_BUFFERSIZE_MINLEN)
break;
- ND_TCHECK2(*tptr, ISIS_TLV_LSP_BUFFERSIZE_MINLEN);
+ ND_TCHECK_LEN(tptr, ISIS_TLV_LSP_BUFFERSIZE_MINLEN);
ND_PRINT((ndo, "\n\t LSP Buffersize: %u", EXTRACT_BE_U_2(tptr)));
break;
case ISIS_TLV_PART_DIS:
while (tmp >= SYSTEM_ID_LEN) {
- ND_TCHECK2(*tptr, SYSTEM_ID_LEN);
+ ND_TCHECK_LEN(tptr, SYSTEM_ID_LEN);
ND_PRINT((ndo, "\n\t %s", isis_print_id(tptr, SYSTEM_ID_LEN)));
tptr+=SYSTEM_ID_LEN;
tmp-=SYSTEM_ID_LEN;
case ISIS_TLV_PREFIX_NEIGH:
if (tmp < sizeof(struct isis_metric_block))
break;
- ND_TCHECK2(*tptr, sizeof(struct isis_metric_block));
+ ND_TCHECK_LEN(tptr, sizeof(struct isis_metric_block));
ND_PRINT((ndo, "\n\t Metric Block"));
isis_print_metric_block(ndo, (const struct isis_metric_block *)tptr);
tptr+=sizeof(struct isis_metric_block);
tmp--;
if (tmp < prefix_len/2)
break;
- ND_TCHECK2(*tptr, prefix_len / 2);
+ ND_TCHECK_LEN(tptr, prefix_len / 2);
ND_PRINT((ndo, "\n\t\tAddress: %s/%u",
isonsap_string(ndo, tptr, prefix_len / 2), prefix_len * 4));
tptr+=prefix_len/2;
case ISIS_TLV_IIH_SEQNR:
if (tmp < ISIS_TLV_IIH_SEQNR_MINLEN)
break;
- ND_TCHECK2(*tptr, ISIS_TLV_IIH_SEQNR_MINLEN); /* check if four bytes are on the wire */
+ ND_TCHECK_LEN(tptr, ISIS_TLV_IIH_SEQNR_MINLEN); /* check if four bytes are on the wire */
ND_PRINT((ndo, "\n\t Sequence number: %u", EXTRACT_BE_U_4(tptr)));
break;
case ISIS_TLV_VENDOR_PRIVATE:
if (tmp < ISIS_TLV_VENDOR_PRIVATE_MINLEN)
break;
- ND_TCHECK2(*tptr, ISIS_TLV_VENDOR_PRIVATE_MINLEN); /* check if enough byte for a full oui */
+ ND_TCHECK_LEN(tptr, ISIS_TLV_VENDOR_PRIVATE_MINLEN); /* check if enough byte for a full oui */
vendor_id = EXTRACT_BE_U_3(tptr);
ND_PRINT((ndo, "\n\t Vendor: %s (%u)",
tok2str(oui_values, "Unknown", vendor_id),
|| checksum_offset < 0
|| !ND_TTEST_2(pptr + checksum_offset)
|| (u_int)checksum_offset > length
- || !ND_TTEST2(*pptr, length)) {
+ || !ND_TTEST_LEN(pptr, length)) {
ND_PRINT((ndo, " (unverified)"));
} else {
#if 0
projects / tcpdump / blobdiff