X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/720d40a12cbb2876b704a309f54a5f06ff47d4ba..a24cccfd4abcda51db9f73f46d425c7c1e357a87:/print-eigrp.c diff --git a/print-eigrp.c b/print-eigrp.c index d7260cd9..d206237d 100644 --- a/print-eigrp.c +++ b/print-eigrp.c @@ -24,10 +24,10 @@ */ #ifdef HAVE_CONFIG_H -#include "config.h" +#include #endif -#include +#include "netdissect-stdinc.h" #include @@ -35,6 +35,7 @@ #include "extract.h" #include "addrtoname.h" + struct eigrp_common_header { nd_uint8_t version; nd_uint8_t opcode; @@ -226,38 +227,39 @@ eigrp_print(netdissect_options *ndo, const u_char *pptr, u_int len) const struct eigrp_tlv_at_ext_t *eigrp_tlv_at_ext; } tlv_ptr; + ndo->ndo_protocol = "eigrp"; tptr=pptr; eigrp_com_header = (const struct eigrp_common_header *)pptr; - ND_TCHECK(*eigrp_com_header); + ND_TCHECK_SIZE(eigrp_com_header); /* * Sanity checking of the header. */ if (EXTRACT_U_1(eigrp_com_header->version) != EIGRP_VERSION) { - ND_PRINT((ndo, "EIGRP version %u packet not supported",EXTRACT_U_1(eigrp_com_header->version))); + ND_PRINT("EIGRP version %u packet not supported",EXTRACT_U_1(eigrp_com_header->version)); return; } /* in non-verbose mode just lets print the basic Message Type*/ if (ndo->ndo_vflag < 1) { - ND_PRINT((ndo, "EIGRP %s, length: %u", + ND_PRINT("EIGRP %s, length: %u", tok2str(eigrp_opcode_values, "unknown (%u)",EXTRACT_U_1(eigrp_com_header->opcode)), - len)); + len); return; } /* ok they seem to want to know everything - lets fully decode it */ if (len < sizeof(struct eigrp_common_header)) { - ND_PRINT((ndo, "EIGRP %s, length: %u (too short, < %u)", + ND_PRINT("EIGRP %s, length: %u (too short, < %u)", tok2str(eigrp_opcode_values, "unknown (%u)",EXTRACT_U_1(eigrp_com_header->opcode)), - len, (u_int) sizeof(struct eigrp_common_header))); + len, (u_int) sizeof(struct eigrp_common_header)); return; } tlen=len-sizeof(struct eigrp_common_header); /* FIXME print other header info */ - ND_PRINT((ndo, "\n\tEIGRP v%u, opcode: %s (%u), chksum: 0x%04x, Flags: [%s]\n\tseq: 0x%08x, ack: 0x%08x, AS: %u, length: %u", + ND_PRINT("\n\tEIGRP v%u, opcode: %s (%u), chksum: 0x%04x, Flags: [%s]\n\tseq: 0x%08x, ack: 0x%08x, AS: %u, length: %u", EXTRACT_U_1(eigrp_com_header->version), tok2str(eigrp_opcode_values, "unknown, type: %u",EXTRACT_U_1(eigrp_com_header->opcode)), EXTRACT_U_1(eigrp_com_header->opcode), @@ -268,7 +270,7 @@ eigrp_print(netdissect_options *ndo, const u_char *pptr, u_int len) EXTRACT_BE_U_4(eigrp_com_header->seq), EXTRACT_BE_U_4(eigrp_com_header->ack), EXTRACT_BE_U_4(eigrp_com_header->asn), - tlen)); + tlen); tptr+=sizeof(struct eigrp_common_header); @@ -287,16 +289,16 @@ eigrp_print(netdissect_options *ndo, const u_char *pptr, u_int len) return; } - ND_PRINT((ndo, "\n\t %s TLV (0x%04x), length: %u", + ND_PRINT("\n\t %s TLV (0x%04x), length: %u", tok2str(eigrp_tlv_values, "Unknown", eigrp_tlv_type), eigrp_tlv_type, - eigrp_tlv_len)); + eigrp_tlv_len); if (eigrp_tlv_len < sizeof(struct eigrp_tlv_header)) { - ND_PRINT((ndo, " (too short, < %u)", - (u_int) sizeof(struct eigrp_tlv_header))); + ND_PRINT(" (too short, < %u)", + (u_int) sizeof(struct eigrp_tlv_header)); break; } tlv_tptr=tptr+sizeof(struct eigrp_tlv_header); @@ -310,187 +312,189 @@ eigrp_print(netdissect_options *ndo, const u_char *pptr, u_int len) case EIGRP_TLV_GENERAL_PARM: tlv_ptr.eigrp_tlv_general_parm = (const struct eigrp_tlv_general_parm_t *)tlv_tptr; if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_general_parm)) { - ND_PRINT((ndo, " (too short, < %u)", - (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_general_parm)))); + ND_PRINT(" (too short, < %u)", + (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_general_parm))); break; } - ND_PRINT((ndo, "\n\t holdtime: %us, k1 %u, k2 %u, k3 %u, k4 %u, k5 %u", + ND_PRINT("\n\t holdtime: %us, k1 %u, k2 %u, k3 %u, k4 %u, k5 %u", EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_general_parm->holdtime), EXTRACT_U_1(tlv_ptr.eigrp_tlv_general_parm->k1), EXTRACT_U_1(tlv_ptr.eigrp_tlv_general_parm->k2), EXTRACT_U_1(tlv_ptr.eigrp_tlv_general_parm->k3), EXTRACT_U_1(tlv_ptr.eigrp_tlv_general_parm->k4), - EXTRACT_U_1(tlv_ptr.eigrp_tlv_general_parm->k5))); + EXTRACT_U_1(tlv_ptr.eigrp_tlv_general_parm->k5)); break; case EIGRP_TLV_SW_VERSION: tlv_ptr.eigrp_tlv_sw_version = (const struct eigrp_tlv_sw_version_t *)tlv_tptr; if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_sw_version)) { - ND_PRINT((ndo, " (too short, < %u)", - (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_sw_version)))); + ND_PRINT(" (too short, < %u)", + (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_sw_version))); break; } - ND_PRINT((ndo, "\n\t IOS version: %u.%u, EIGRP version %u.%u", + ND_PRINT("\n\t IOS version: %u.%u, EIGRP version %u.%u", EXTRACT_U_1(tlv_ptr.eigrp_tlv_sw_version->ios_major), EXTRACT_U_1(tlv_ptr.eigrp_tlv_sw_version->ios_minor), EXTRACT_U_1(tlv_ptr.eigrp_tlv_sw_version->eigrp_major), - EXTRACT_U_1(tlv_ptr.eigrp_tlv_sw_version->eigrp_minor))); + EXTRACT_U_1(tlv_ptr.eigrp_tlv_sw_version->eigrp_minor)); break; case EIGRP_TLV_IP_INT: tlv_ptr.eigrp_tlv_ip_int = (const struct eigrp_tlv_ip_int_t *)tlv_tptr; if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_ip_int)) { - ND_PRINT((ndo, " (too short, < %u)", - (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_ip_int)))); + ND_PRINT(" (too short, < %u)", + (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_ip_int))); break; } bit_length = EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_int->plen); if (bit_length > 32) { - ND_PRINT((ndo, "\n\t illegal prefix length %u",bit_length)); + ND_PRINT("\n\t illegal prefix length %u",bit_length); break; } byte_length = (bit_length + 7) / 8; /* variable length encoding */ memset(prefix, 0, 4); memcpy(prefix, tlv_ptr.eigrp_tlv_ip_int->destination, byte_length); - ND_PRINT((ndo, "\n\t IPv4 prefix: %15s/%u, nexthop: ", + ND_PRINT("\n\t IPv4 prefix: %15s/%u, nexthop: ", ipaddr_string(ndo, prefix), - bit_length)); + bit_length); if (EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_int->nexthop) == 0) - ND_PRINT((ndo, "self")); + ND_PRINT("self"); else - ND_PRINT((ndo, "%s",ipaddr_string(ndo, &tlv_ptr.eigrp_tlv_ip_int->nexthop))); + ND_PRINT("%s", + ipaddr_string(ndo, tlv_ptr.eigrp_tlv_ip_int->nexthop)); - ND_PRINT((ndo, "\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", + ND_PRINT("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", (EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_int->delay)/100), EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_int->bandwidth), EXTRACT_BE_U_3(tlv_ptr.eigrp_tlv_ip_int->mtu), EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_int->hopcount), EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_int->reliability), - EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_int->load))); + EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_int->load)); break; case EIGRP_TLV_IP_EXT: tlv_ptr.eigrp_tlv_ip_ext = (const struct eigrp_tlv_ip_ext_t *)tlv_tptr; if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_ip_ext)) { - ND_PRINT((ndo, " (too short, < %u)", - (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_ip_ext)))); + ND_PRINT(" (too short, < %u)", + (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_ip_ext))); break; } bit_length = EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_ext->plen); if (bit_length > 32) { - ND_PRINT((ndo, "\n\t illegal prefix length %u",bit_length)); + ND_PRINT("\n\t illegal prefix length %u",bit_length); break; } byte_length = (bit_length + 7) / 8; /* variable length encoding */ memset(prefix, 0, 4); memcpy(prefix, tlv_ptr.eigrp_tlv_ip_ext->destination, byte_length); - ND_PRINT((ndo, "\n\t IPv4 prefix: %15s/%u, nexthop: ", + ND_PRINT("\n\t IPv4 prefix: %15s/%u, nexthop: ", ipaddr_string(ndo, prefix), - bit_length)); + bit_length); if (EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->nexthop) == 0) - ND_PRINT((ndo, "self")); + ND_PRINT("self"); else - ND_PRINT((ndo, "%s",ipaddr_string(ndo, &tlv_ptr.eigrp_tlv_ip_ext->nexthop))); + ND_PRINT("%s", + ipaddr_string(ndo, tlv_ptr.eigrp_tlv_ip_ext->nexthop)); - ND_PRINT((ndo, "\n\t origin-router %s, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u", - ipaddr_string(ndo, &tlv_ptr.eigrp_tlv_ip_ext->origin_router), + ND_PRINT("\n\t origin-router %s, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u", + ipaddr_string(ndo, tlv_ptr.eigrp_tlv_ip_ext->origin_router), EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->origin_as), tok2str(eigrp_ext_proto_id_values,"unknown",EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_ext->proto_id)), EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_ext->flags), EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->tag), - EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->metric))); + EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->metric)); - ND_PRINT((ndo, "\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", + ND_PRINT("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", (EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->delay)/100), EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_ip_ext->bandwidth), EXTRACT_BE_U_3(tlv_ptr.eigrp_tlv_ip_ext->mtu), EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_ext->hopcount), EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_ext->reliability), - EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_ext->load))); + EXTRACT_U_1(tlv_ptr.eigrp_tlv_ip_ext->load)); break; case EIGRP_TLV_AT_CABLE_SETUP: tlv_ptr.eigrp_tlv_at_cable_setup = (const struct eigrp_tlv_at_cable_setup_t *)tlv_tptr; if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_at_cable_setup)) { - ND_PRINT((ndo, " (too short, < %u)", - (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_at_cable_setup)))); + ND_PRINT(" (too short, < %u)", + (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_at_cable_setup))); break; } - ND_PRINT((ndo, "\n\t Cable-range: %u-%u, Router-ID %u", + ND_PRINT("\n\t Cable-range: %u-%u, Router-ID %u", EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_cable_setup->cable_start), EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_cable_setup->cable_end), - EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_cable_setup->router_id))); + EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_cable_setup->router_id)); break; case EIGRP_TLV_AT_INT: tlv_ptr.eigrp_tlv_at_int = (const struct eigrp_tlv_at_int_t *)tlv_tptr; if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_at_int)) { - ND_PRINT((ndo, " (too short, < %u)", - (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_at_int)))); + ND_PRINT(" (too short, < %u)", + (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_at_int))); break; } - ND_PRINT((ndo, "\n\t Cable-Range: %u-%u, nexthop: ", + ND_PRINT("\n\t Cable-Range: %u-%u, nexthop: ", EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_int->cable_start), - EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_int->cable_end))); + EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_int->cable_end)); if (EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_int->nexthop) == 0) - ND_PRINT((ndo, "self")); + ND_PRINT("self"); else - ND_PRINT((ndo, "%u.%u", + ND_PRINT("%u.%u", EXTRACT_BE_U_2(&tlv_ptr.eigrp_tlv_at_int->nexthop[0]), - EXTRACT_BE_U_2(&tlv_ptr.eigrp_tlv_at_int->nexthop[2]))); + EXTRACT_BE_U_2(&tlv_ptr.eigrp_tlv_at_int->nexthop[2])); - ND_PRINT((ndo, "\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", + ND_PRINT("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", (EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_int->delay)/100), EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_int->bandwidth), EXTRACT_BE_U_3(tlv_ptr.eigrp_tlv_at_int->mtu), EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_int->hopcount), EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_int->reliability), - EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_int->load))); + EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_int->load)); break; case EIGRP_TLV_AT_EXT: tlv_ptr.eigrp_tlv_at_ext = (const struct eigrp_tlv_at_ext_t *)tlv_tptr; if (tlv_tlen < sizeof(*tlv_ptr.eigrp_tlv_at_ext)) { - ND_PRINT((ndo, " (too short, < %u)", - (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_at_ext)))); + ND_PRINT(" (too short, < %u)", + (u_int) (sizeof(struct eigrp_tlv_header) + sizeof(*tlv_ptr.eigrp_tlv_at_ext))); break; } - ND_PRINT((ndo, "\n\t Cable-Range: %u-%u, nexthop: ", + ND_PRINT("\n\t Cable-Range: %u-%u, nexthop: ", EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_ext->cable_start), - EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_ext->cable_end))); + EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_ext->cable_end)); if (EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->nexthop) == 0) - ND_PRINT((ndo, "self")); + ND_PRINT("self"); else - ND_PRINT((ndo, "%u.%u", + ND_PRINT("%u.%u", EXTRACT_BE_U_2(&tlv_ptr.eigrp_tlv_at_ext->nexthop[0]), - EXTRACT_BE_U_2(&tlv_ptr.eigrp_tlv_at_ext->nexthop[2]))); + EXTRACT_BE_U_2(&tlv_ptr.eigrp_tlv_at_ext->nexthop[2])); - ND_PRINT((ndo, "\n\t origin-router %u, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u", + ND_PRINT("\n\t origin-router %u, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u", EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->origin_router), EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->origin_as), tok2str(eigrp_ext_proto_id_values,"unknown",EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_ext->proto_id)), EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_ext->flags), EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->tag), - EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_ext->metric))); + EXTRACT_BE_U_2(tlv_ptr.eigrp_tlv_at_ext->metric)); - ND_PRINT((ndo, "\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", + ND_PRINT("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", (EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->delay)/100), EXTRACT_BE_U_4(tlv_ptr.eigrp_tlv_at_ext->bandwidth), EXTRACT_BE_U_3(tlv_ptr.eigrp_tlv_at_ext->mtu), EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_ext->hopcount), EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_ext->reliability), - EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_ext->load))); + EXTRACT_U_1(tlv_ptr.eigrp_tlv_at_ext->load)); break; /* @@ -519,5 +523,5 @@ eigrp_print(netdissect_options *ndo, const u_char *pptr, u_int len) } return; trunc: - ND_PRINT((ndo, "\n\t\t packet exceeded snapshot")); + nd_print_trunc(ndo); }