]> The Tcpdump Group git mirrors - tcpdump/blobdiff - print-dccp.c
bgp: Parse BGP extended message support capability
[tcpdump] / print-dccp.c
index 9714c3c069ad7c88e0570df237a30c31b2cdd5fa..80951cf060a1aaa5427c70727cd7aa99d35a3306 100644 (file)
@@ -155,36 +155,36 @@ enum dccp_reset_codes {
        DCCP_RESET_CODE_TOO_BUSY,
        DCCP_RESET_CODE_BAD_INIT_COOKIE,
        DCCP_RESET_CODE_AGGRESSION_PENALTY,
-       __DCCP_RESET_CODE_LAST
 };
 
-
-static const char *dccp_reset_codes[] = {
-       "unspecified",
-       "closed",
-       "aborted",
-       "no_connection",
-       "packet_error",
-       "option_error",
-       "mandatory_error",
-       "connection_refused",
-       "bad_service_code",
-       "too_busy",
-       "bad_init_cookie",
-       "aggression_penalty",
+static const struct tok dccp_reset_code_str[] = {
+       { DCCP_RESET_CODE_UNSPECIFIED, "unspecified" },
+       { DCCP_RESET_CODE_CLOSED, "closed" },
+       { DCCP_RESET_CODE_ABORTED, "aborted" },
+       { DCCP_RESET_CODE_NO_CONNECTION, "no_connection" },
+       { DCCP_RESET_CODE_PACKET_ERROR, "packet_error" },
+       { DCCP_RESET_CODE_OPTION_ERROR, "option_error" },
+       { DCCP_RESET_CODE_MANDATORY_ERROR, "mandatory_error" },
+       { DCCP_RESET_CODE_CONNECTION_REFUSED, "connection_refused" },
+       { DCCP_RESET_CODE_BAD_SERVICE_CODE, "bad_service_code" },
+       { DCCP_RESET_CODE_TOO_BUSY, "too_busy" },
+       { DCCP_RESET_CODE_BAD_INIT_COOKIE, "bad_init_cookie" },
+       { DCCP_RESET_CODE_AGGRESSION_PENALTY, "aggression_penalty" },
+       { 0, NULL }
 };
 
-static const char *dccp_feature_nums[] = {
-       "reserved",
-       "ccid",
-       "allow_short_seqno",
-       "sequence_window",
-       "ecn_incapable",
-       "ack_ratio",
-       "send_ack_vector",
-       "send_ndp_count",
-       "minimum checksum coverage",
-       "check data checksum",
+static const struct tok dccp_feature_num_str[] = {
+       { 0, "reserved" },
+       { 1, "ccid" },
+       { 2, "allow_short_seqno" },
+       { 3, "sequence_window" },
+       { 4, "ecn_incapable" },
+       { 5, "ack_ratio" },
+       { 6, "send_ack_vector" },
+       { 7, "send_ndp_count" },
+       { 8, "minimum checksum coverage" },
+       { 9, "check data checksum" },
+       { 0, NULL }
 };
 
 static u_int
@@ -213,13 +213,6 @@ static uint16_t dccp6_cksum(netdissect_options *ndo, const struct ip6_hdr *ip6,
                                dccp_csum_coverage(ndo, dh, len), IPPROTO_DCCP);
 }
 
-static const char *dccp_reset_code(uint8_t code)
-{
-       if (code >= __DCCP_RESET_CODE_LAST)
-               return "invalid";
-       return dccp_reset_codes[code];
-}
-
 static uint64_t
 dccp_seqno(netdissect_options *ndo, const u_char *bp)
 {
@@ -448,7 +441,7 @@ dccp_print(netdissect_options *ndo, const u_char *bp, const u_char *data2,
                ND_TCHECK_SIZE(dhr);
                ND_PRINT("%s (code=%s) ",
                          tok2str(dccp_pkt_type_str, "", dccph_type),
-                         dccp_reset_code(GET_U_1(dhr->dccph_reset_code)));
+                         tok2str(dccp_reset_code_str, "invalid", GET_U_1(dhr->dccph_reset_code)));
                break;
        }
        case DCCP_PKT_SYNC:
@@ -509,23 +502,42 @@ trunc:
        nd_print_trunc(ndo);
 }
 
+enum dccp_option_type {
+       DCCP_OPTION_PADDING = 0,
+       DCCP_OPTION_MANDATORY = 1,
+       DCCP_OPTION_SLOW_RECEIVER = 2,
+       DCCP_OPTION_CHANGE_L = 32,
+       DCCP_OPTION_CONFIRM_L = 33,
+       DCCP_OPTION_CHANGE_R = 34,
+       DCCP_OPTION_CONFIRM_R = 35,
+       DCCP_OPTION_INIT_COOKIE = 36,
+       DCCP_OPTION_NDP_COUNT = 37,
+       DCCP_OPTION_ACK_VECTOR_NONCE_0 = 38,
+       DCCP_OPTION_ACK_VECTOR_NONCE_1 = 39,
+       DCCP_OPTION_DATA_DROPPED = 40,
+       DCCP_OPTION_TIMESTAMP = 41,
+       DCCP_OPTION_TIMESTAMP_ECHO = 42,
+       DCCP_OPTION_ELAPSED_TIME = 43,
+       DCCP_OPTION_DATA_CHECKSUM = 44
+};
+
 static const struct tok dccp_option_values[] = {
-       { 0, "nop" },
-       { 1, "mandatory" },
-       { 2, "slowreceiver" },
-       { 32, "change_l" },
-       { 33, "confirm_l" },
-       { 34, "change_r" },
-       { 35, "confirm_r" },
-       { 36, "initcookie" },
-       { 37, "ndp_count" },
-       { 38, "ack_vector0" },
-       { 39, "ack_vector1" },
-       { 40, "data_dropped" },
-       { 41, "timestamp" },
-       { 42, "timestamp_echo" },
-       { 43, "elapsed_time" },
-       { 44, "data_checksum" },
+       { DCCP_OPTION_PADDING, "nop" },
+       { DCCP_OPTION_MANDATORY, "mandatory" },
+       { DCCP_OPTION_SLOW_RECEIVER, "slowreceiver" },
+       { DCCP_OPTION_CHANGE_L, "change_l" },
+       { DCCP_OPTION_CONFIRM_L, "confirm_l" },
+       { DCCP_OPTION_CHANGE_R, "change_r" },
+       { DCCP_OPTION_CONFIRM_R, "confirm_r" },
+       { DCCP_OPTION_INIT_COOKIE, "initcookie" },
+       { DCCP_OPTION_NDP_COUNT, "ndp_count" },
+       { DCCP_OPTION_ACK_VECTOR_NONCE_0, "ack_vector0" },
+       { DCCP_OPTION_ACK_VECTOR_NONCE_1, "ack_vector1" },
+       { DCCP_OPTION_DATA_DROPPED, "data_dropped" },
+       { DCCP_OPTION_TIMESTAMP, "timestamp" },
+       { DCCP_OPTION_TIMESTAMP_ECHO, "timestamp_echo" },
+       { DCCP_OPTION_ELAPSED_TIME, "elapsed_time" },
+       { DCCP_OPTION_DATA_CHECKSUM, "data_checksum" },
        { 0, NULL }
 };
 
@@ -575,23 +587,20 @@ dccp_print_option(netdissect_options *ndo, const u_char *option, u_int hlen)
                ND_PRINT("%s",
                         tok2str(dccp_option_values, "Option %u", GET_U_1(option)));
                switch (GET_U_1(option)) {
-               case 32:
-               case 33:
-               case 34:
-               case 35:
+               case DCCP_OPTION_CHANGE_L:
+               case DCCP_OPTION_CONFIRM_L:
+               case DCCP_OPTION_CHANGE_R:
+               case DCCP_OPTION_CONFIRM_R:
                        if (optlen < 3) {
                                ND_PRINT(" optlen too short");
                                return optlen;
                        }
-                       if (GET_U_1(option + 2) < 10){
-                               ND_PRINT(" %s",
-                                        dccp_feature_nums[GET_U_1(option + 2)]);
-                               for (i = 0; i < optlen - 3; i++)
-                                       ND_PRINT(" %u",
-                                                GET_U_1(option + 3 + i));
-                       }
+                       ND_PRINT(" %s", tok2str(dccp_feature_num_str,
+                                               "invalid (%u)", GET_U_1(option + 2)));
+                       for (i = 0; i < optlen - 3; i++)
+                               ND_PRINT(" %u", GET_U_1(option + 3 + i));
                        break;
-               case 36:
+               case DCCP_OPTION_INIT_COOKIE:
                        if (optlen > 2) {
                                ND_PRINT(" 0x");
                                for (i = 0; i < optlen - 2; i++)
@@ -599,11 +608,11 @@ dccp_print_option(netdissect_options *ndo, const u_char *option, u_int hlen)
                                                 GET_U_1(option + 2 + i));
                        }
                        break;
-               case 37:
+               case DCCP_OPTION_NDP_COUNT:
                        for (i = 0; i < optlen - 2; i++)
                                ND_PRINT(" %u", GET_U_1(option + 2 + i));
                        break;
-               case 38:
+               case DCCP_OPTION_ACK_VECTOR_NONCE_0:
                        if (optlen > 2) {
                                ND_PRINT(" 0x");
                                for (i = 0; i < optlen - 2; i++)
@@ -611,7 +620,7 @@ dccp_print_option(netdissect_options *ndo, const u_char *option, u_int hlen)
                                                 GET_U_1(option + 2 + i));
                        }
                        break;
-               case 39:
+               case DCCP_OPTION_ACK_VECTOR_NONCE_1:
                        if (optlen > 2) {
                                ND_PRINT(" 0x");
                                for (i = 0; i < optlen - 2; i++)
@@ -619,7 +628,7 @@ dccp_print_option(netdissect_options *ndo, const u_char *option, u_int hlen)
                                                 GET_U_1(option + 2 + i));
                        }
                        break;
-               case 40:
+               case DCCP_OPTION_DATA_DROPPED:
                        if (optlen > 2) {
                                ND_PRINT(" 0x");
                                for (i = 0; i < optlen - 2; i++)
@@ -627,7 +636,7 @@ dccp_print_option(netdissect_options *ndo, const u_char *option, u_int hlen)
                                                 GET_U_1(option + 2 + i));
                        }
                        break;
-               case 41:
+               case DCCP_OPTION_TIMESTAMP:
                /*
                 * 13.1.  Timestamp Option
                 *
@@ -641,7 +650,7 @@ dccp_print_option(netdissect_options *ndo, const u_char *option, u_int hlen)
                        else
                                ND_PRINT(" [optlen != 6]");
                        break;
-               case 42:
+               case DCCP_OPTION_TIMESTAMP_ECHO:
                /*
                 * 13.3.  Timestamp Echo Option
                 *
@@ -679,7 +688,7 @@ dccp_print_option(netdissect_options *ndo, const u_char *option, u_int hlen)
                                break;
                        }
                        break;
-               case 43:
+               case DCCP_OPTION_ELAPSED_TIME:
                        if (optlen == 6)
                                ND_PRINT(" %u", GET_BE_U_4(option + 2));
                        else if (optlen == 4)
@@ -687,7 +696,7 @@ dccp_print_option(netdissect_options *ndo, const u_char *option, u_int hlen)
                        else
                                ND_PRINT(" [optlen != 4 or 6]");
                        break;
-               case 44:
+               case DCCP_OPTION_DATA_CHECKSUM:
                        if (optlen > 2) {
                                ND_PRINT(" ");
                                for (i = 0; i < optlen - 2; i++)