X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/6ec714988caac3bf9fedc766ae51a2248896ec80..f7d6567191b85e4c1cf891af9a24418be4ce93bb:/print-lisp.c diff --git a/print-lisp.c b/print-lisp.c index 804f898e..ab8feca6 100644 --- a/print-lisp.c +++ b/print-lisp.c @@ -95,10 +95,10 @@ */ #ifdef HAVE_CONFIG_H -#include "config.h" +#include #endif -#include +#include "netdissect-stdinc.h" #include "netdissect.h" #include #include @@ -109,7 +109,6 @@ #include "extract.h" #include "addrtoname.h" -static const char tstr[] = " [|LISP]"; #define IPv4_AFI 1 #define IPv6_AFI 2 @@ -222,8 +221,8 @@ typedef struct map_register_loc { #define MAP_REGISTER_LOC_LEN sizeof(lisp_map_register_loc) -static inline uint8_t extract_lisp_type(uint8_t); -static inline uint8_t is_xtr_data_present(uint8_t , uint8_t); +static uint8_t extract_lisp_type(uint8_t); +static uint8_t is_xtr_data_present(uint8_t, uint8_t); static void lisp_hdr_flag(netdissect_options *, const lisp_map_register_hdr *); static void action_flag(netdissect_options *, uint8_t); static void loc_hdr_flag(netdissect_options *, uint16_t); @@ -250,12 +249,13 @@ lisp_print(netdissect_options *ndo, const u_char *bp, u_int length) const lisp_map_register_eid *lisp_eid; const lisp_map_register_loc *lisp_loc; + ndo->ndo_protocol = "lisp"; /* Check if enough bytes for header are available */ ND_TCHECK_LEN(bp, MAP_REGISTER_HDR_LEN); lisp_hdr = (const lisp_map_register_hdr *) bp; lisp_hdr_flag(ndo, lisp_hdr); /* Supporting only MAP NOTIFY and MAP REGISTER LISP packets */ - type_and_flag = EXTRACT_U_1(lisp_hdr->type_and_flag); + type_and_flag = GET_U_1(lisp_hdr->type_and_flag); type = extract_lisp_type(type_and_flag); if ((type != LISP_MAP_REGISTER) && (type != LISP_MAP_NOTIFY)) return; @@ -264,20 +264,20 @@ lisp_print(netdissect_options *ndo, const u_char *bp, u_int length) xtr_present = is_xtr_data_present(type, type_and_flag); /* Extract the number of EID records present */ - auth_data_len = EXTRACT_BE_U_2(lisp_hdr->auth_data_len); + auth_data_len = GET_BE_U_2(lisp_hdr->auth_data_len); packet_iterator = (const u_char *)(lisp_hdr); packet_offset = MAP_REGISTER_HDR_LEN; - record_count = EXTRACT_U_1(lisp_hdr->record_count); + record_count = GET_U_1(lisp_hdr->record_count); if (ndo->ndo_vflag) { - key_id = EXTRACT_BE_U_2(lisp_hdr->key_id); - ND_PRINT((ndo, "\n %u record(s), ", record_count)); - ND_PRINT((ndo, "Authentication %s,", - tok2str(auth_type, "unknown-type", key_id))); + key_id = GET_BE_U_2(lisp_hdr->key_id); + ND_PRINT("\n %u record(s), ", record_count); + ND_PRINT("Authentication %s,", + tok2str(auth_type, "unknown-type", key_id)); hex_print(ndo, "\n Authentication-Data: ", packet_iterator + packet_offset, auth_data_len); } else { - ND_PRINT((ndo, " %u record(s),", record_count)); + ND_PRINT(" %u record(s),", record_count); } packet_offset += auth_data_len; @@ -289,33 +289,35 @@ lisp_print(netdissect_options *ndo, const u_char *bp, u_int length) ND_TCHECK_LEN(packet_iterator + packet_offset, MAP_REGISTER_EID_LEN); - ND_PRINT((ndo, "\n")); + ND_PRINT("\n"); lisp_eid = (const lisp_map_register_eid *) ((const u_char *)lisp_hdr + packet_offset); packet_offset += MAP_REGISTER_EID_LEN; - mask_len = EXTRACT_U_1(lisp_eid->eid_prefix_mask_length); - eid_afi = EXTRACT_BE_U_2(lisp_eid->eid_prefix_afi); - loc_count = EXTRACT_U_1(lisp_eid->locator_count); + mask_len = GET_U_1(lisp_eid->eid_prefix_mask_length); + eid_afi = GET_BE_U_2(lisp_eid->eid_prefix_afi); + loc_count = GET_U_1(lisp_eid->locator_count); if (ndo->ndo_vflag) { - ttl = EXTRACT_BE_U_4(lisp_eid->ttl); - ND_PRINT((ndo, " Record TTL %u,", ttl)); - action_flag(ndo, EXTRACT_U_1(lisp_eid->act_auth_inc_res)); - map_version = EXTRACT_BE_U_2(lisp_eid->reserved_and_version) & 0x0FFF; - ND_PRINT((ndo, " Map Version: %u,", map_version)); + ttl = GET_BE_U_4(lisp_eid->ttl); + ND_PRINT(" Record TTL %u,", ttl); + action_flag(ndo, GET_U_1(lisp_eid->act_auth_inc_res)); + map_version = GET_BE_U_2(lisp_eid->reserved_and_version) & 0x0FFF; + ND_PRINT(" Map Version: %u,", map_version); } switch (eid_afi) { case IPv4_AFI: ND_TCHECK_4(packet_iterator + packet_offset); - ND_PRINT((ndo, " EID %s/%u,", ipaddr_string(ndo, - packet_iterator + packet_offset), mask_len)); + ND_PRINT(" EID %s/%u,", + GET_IPADDR_STRING(packet_iterator + packet_offset), + mask_len); packet_offset += 4; break; case IPv6_AFI: ND_TCHECK_16(packet_iterator + packet_offset); - ND_PRINT((ndo, " EID %s/%u,", ip6addr_string(ndo, - packet_iterator + packet_offset), mask_len)); + ND_PRINT(" EID %s/%u,", + GET_IP6ADDR_STRING(packet_iterator + packet_offset), + mask_len); packet_offset += 16; break; default: @@ -326,7 +328,7 @@ lisp_print(netdissect_options *ndo, const u_char *bp, u_int length) break; } - ND_PRINT((ndo, " %u locator(s)", loc_count)); + ND_PRINT(" %u locator(s)", loc_count); while (loc_count--) { ND_TCHECK_LEN(packet_iterator + packet_offset, @@ -334,34 +336,34 @@ lisp_print(netdissect_options *ndo, const u_char *bp, u_int length) lisp_loc = (const lisp_map_register_loc *) (packet_iterator + packet_offset); loc_ip_pointer = (const u_char *) (lisp_loc + 1); packet_offset += MAP_REGISTER_LOC_LEN; - loc_afi = EXTRACT_BE_U_2(lisp_loc->locator_afi); + loc_afi = GET_BE_U_2(lisp_loc->locator_afi); if (ndo->ndo_vflag) - ND_PRINT((ndo, "\n ")); + ND_PRINT("\n "); switch (loc_afi) { case IPv4_AFI: ND_TCHECK_4(packet_iterator + packet_offset); - ND_PRINT((ndo, " LOC %s", ipaddr_string(ndo, loc_ip_pointer))); + ND_PRINT(" LOC %s", GET_IPADDR_STRING(loc_ip_pointer)); packet_offset += 4; break; case IPv6_AFI: ND_TCHECK_16(packet_iterator + packet_offset); - ND_PRINT((ndo, " LOC %s", ip6addr_string(ndo, loc_ip_pointer))); + ND_PRINT(" LOC %s", GET_IP6ADDR_STRING(loc_ip_pointer)); packet_offset += 16; break; default: break; } if (ndo->ndo_vflag) { - ND_PRINT((ndo, "\n Priority/Weight %u/%u," + ND_PRINT("\n Priority/Weight %u/%u," " Multicast Priority/Weight %u/%u,", - EXTRACT_U_1(lisp_loc->priority), - EXTRACT_U_1(lisp_loc->weight), - EXTRACT_U_1(lisp_loc->m_priority), - EXTRACT_U_1(lisp_loc->m_weight))); + GET_U_1(lisp_loc->priority), + GET_U_1(lisp_loc->weight), + GET_U_1(lisp_loc->m_priority), + GET_U_1(lisp_loc->m_weight)); loc_hdr_flag(ndo, - EXTRACT_BE_U_2(lisp_loc->unused_and_flag)); + GET_BE_U_2(lisp_loc->unused_and_flag)); } } } @@ -375,30 +377,32 @@ lisp_print(netdissect_options *ndo, const u_char *bp, u_int length) if (!ND_TTEST_LEN(packet_iterator + packet_offset, 24)) goto invalid; hex_print_with_offset(ndo, "\n xTR-ID: ", packet_iterator + packet_offset, 16, 0); - ND_PRINT((ndo, "\n SITE-ID: %" PRIu64, - EXTRACT_BE_U_8(packet_iterator + packet_offset + 16))); + ND_PRINT("\n SITE-ID: %" PRIu64, + GET_BE_U_8(packet_iterator + packet_offset + 16)); } else { /* Check if packet isn't over yet */ if (packet_iterator + packet_offset < ndo->ndo_snapend) { hex_print_with_offset(ndo, "\n Data: ", packet_iterator + packet_offset, - (ndo->ndo_snapend - (packet_iterator + packet_offset)), 0); + ND_BYTES_AVAILABLE_AFTER(packet_iterator + packet_offset), 0); } } return; trunc: - ND_PRINT((ndo, "\n %s", tstr)); + nd_print_trunc(ndo); return; invalid: - ND_PRINT((ndo, "\n %s", istr)); + nd_print_invalid(ndo); return; } -static inline uint8_t extract_lisp_type(uint8_t lisp_hdr_flags) +static uint8_t +extract_lisp_type(uint8_t lisp_hdr_flags) { return (lisp_hdr_flags) >> TYPE_INDEX; } -static inline uint8_t is_xtr_data_present(uint8_t type, uint8_t lisp_hdr_flags) +static uint8_t +is_xtr_data_present(uint8_t type, uint8_t lisp_hdr_flags) { uint8_t xtr_present = 0; @@ -412,21 +416,21 @@ static inline uint8_t is_xtr_data_present(uint8_t type, uint8_t lisp_hdr_flags) static void lisp_hdr_flag(netdissect_options *ndo, const lisp_map_register_hdr *lisp_hdr) { - uint8_t type = extract_lisp_type(EXTRACT_U_1(lisp_hdr->type_and_flag)); + uint8_t type = extract_lisp_type(GET_U_1(lisp_hdr->type_and_flag)); if (!ndo->ndo_vflag) { - ND_PRINT((ndo, "%s,", tok2str(lisp_type, "unknown-type-%u", type))); + ND_PRINT("%s,", tok2str(lisp_type, "unknown-type-%u", type)); return; } else { - ND_PRINT((ndo, "%s,", tok2str(lisp_type, "unknown-type-%u", type))); + ND_PRINT("%s,", tok2str(lisp_type, "unknown-type-%u", type)); } if (type == LISP_MAP_REGISTER) { - ND_PRINT((ndo, " flags [%s],", bittok2str(map_register_hdr_flag, - "none", EXTRACT_BE_U_4(lisp_hdr)))); + ND_PRINT(" flags [%s],", bittok2str(map_register_hdr_flag, + "none", GET_BE_U_4(lisp_hdr))); } else if (type == LISP_MAP_NOTIFY) { - ND_PRINT((ndo, " flags [%s],", bittok2str(map_notify_hdr_flag, - "none", EXTRACT_BE_U_4(lisp_hdr)))); + ND_PRINT(" flags [%s],", bittok2str(map_notify_hdr_flag, + "none", GET_BE_U_4(lisp_hdr))); } return; @@ -440,16 +444,16 @@ static void action_flag(netdissect_options *ndo, uint8_t act_auth_inc_res) authoritative = ((act_auth_inc_res >> 4) & 1); if (authoritative) - ND_PRINT((ndo, " Authoritative,")); + ND_PRINT(" Authoritative,"); else - ND_PRINT((ndo, " Non-Authoritative,")); + ND_PRINT(" Non-Authoritative,"); action = act_auth_inc_res >> 5; - ND_PRINT((ndo, " %s,", tok2str(lisp_eid_action, "unknown", action))); + ND_PRINT(" %s,", tok2str(lisp_eid_action, "unknown", action)); } static void loc_hdr_flag(netdissect_options *ndo, uint16_t flag) { - ND_PRINT((ndo, " flags [%s],", bittok2str(lisp_loc_flag, "none", flag))); + ND_PRINT(" flags [%s],", bittok2str(lisp_loc_flag, "none", flag)); }