Clean up ISAKMP dissection, use nd_ types and EXTRACT_ macros.

[tcpdump] / print-pim.c

diff --git a/print-pim.c b/print-pim.c
index ac24845034f346e34c4037b0aa6a4d6d0ca13af7..fa6a345a8d7b3325a8bd8612fcc4a3ebd102148c 100644 (file)
--- a/print-pim.c
+++ b/print-pim.c
@@ -137,17 +137,17 @@ struct pim {
        u_short pim_cksum;      /* IP style check sum */
 };
 
-static void pimv2_print(netdissect_options *, register const u_char *bp, register u_int len, const u_char *);
+static void pimv2_print(netdissect_options *, const u_char *bp, u_int len, const u_char *);
 
 static void
 pimv1_join_prune_print(netdissect_options *ndo,
-                       register const u_char *bp, register u_int len)
+                       const u_char *bp, u_int len)
 {
        int ngroups, njoin, nprune;
        int njp;
 
        /* If it's a single group and a single source, use 1-line output. */
-       if (ND_TTEST2(bp[0], 30) && bp[11] == 1 &&
+       if (ND_TTEST_LEN(bp, 30) && EXTRACT_U_1(bp + 11) == 1 &&
            ((njoin = EXTRACT_BE_U_2(bp + 20)) + EXTRACT_BE_U_2(bp + 22)) == 1) {
                int hold;
 
@@ -171,7 +171,7 @@ pimv1_join_prune_print(netdissect_options *ndo,
 
        if (len < sizeof(struct in_addr))
                goto trunc;
-       ND_TCHECK2(bp[0], sizeof(struct in_addr));
+       ND_TCHECK_LEN(bp, sizeof(struct in_addr));
        if (ndo->ndo_vflag > 1)
                ND_PRINT((ndo, "\n"));
        ND_PRINT((ndo, " Upstream Nbr: %s", ipaddr_string(ndo, bp)));
@@ -192,7 +192,7 @@ pimv1_join_prune_print(netdissect_options *ndo,
        if (len < 4)
                goto trunc;
        ND_TCHECK_4(bp);
-       ngroups = bp[3];
+       ngroups = EXTRACT_U_1(bp + 3);
        bp += 4;
        len -= 4;
        while (ngroups--) {
@@ -202,13 +202,13 @@ pimv1_join_prune_print(netdissect_options *ndo,
                 */
                if (len < 4)
                        goto trunc;
-               ND_TCHECK2(bp[0], sizeof(struct in_addr));
+               ND_TCHECK_LEN(bp, sizeof(struct in_addr));
                ND_PRINT((ndo, "\n\tGroup: %s", ipaddr_string(ndo, bp)));
                bp += 4;
                len -= 4;
                if (len < 4)
                        goto trunc;
-               ND_TCHECK2(bp[0], sizeof(struct in_addr));
+               ND_TCHECK_LEN(bp, sizeof(struct in_addr));
                if (EXTRACT_BE_U_4(bp) != 0xffffffff)
                        ND_PRINT((ndo, "/%s", ipaddr_string(ndo, bp)));
                bp += 4;
@@ -249,18 +249,18 @@ trunc:
 
 void
 pimv1_print(netdissect_options *ndo,
-            register const u_char *bp, register u_int len)
+            const u_char *bp, u_int len)
 {
-       register u_char type;
+       u_char type;
 
-       ND_TCHECK(bp[1]);
-       type = bp[1];
+       ND_TCHECK_1(bp + 1);
+       type = EXTRACT_U_1(bp + 1);
 
        ND_PRINT((ndo, " %s", tok2str(pimv1_type_str, "[type %u]", type)));
        switch (type) {
        case PIMV1_TYPE_QUERY:
-               if (ND_TTEST(bp[8])) {
-                       switch (bp[8] >> 4) {
+               if (ND_TTEST_1(bp + 8)) {
+                       switch (EXTRACT_U_1(bp + 8) >> 4) {
                        case 0:
                                ND_PRINT((ndo, " Dense-mode"));
                                break;
@@ -284,12 +284,12 @@ pimv1_print(netdissect_options *ndo,
                break;
 
        case PIMV1_TYPE_REGISTER:
-               ND_TCHECK2(bp[8], 20);                  /* ip header */
+               ND_TCHECK_LEN(bp + 8, 20);                      /* ip header */
                ND_PRINT((ndo, " for %s > %s", ipaddr_string(ndo, bp + 20),
                          ipaddr_string(ndo, bp + 24)));
                break;
        case PIMV1_TYPE_REGISTER_STOP:
-               ND_TCHECK2(bp[12], sizeof(struct in_addr));
+               ND_TCHECK_LEN(bp + 12, sizeof(struct in_addr));
                ND_PRINT((ndo, " for %s > %s", ipaddr_string(ndo, bp + 8),
                          ipaddr_string(ndo, bp + 12)));
                break;
@@ -304,7 +304,7 @@ pimv1_print(netdissect_options *ndo,
                }
                break;
        case PIMV1_TYPE_ASSERT:
-               ND_TCHECK2(bp[16], sizeof(struct in_addr));
+               ND_TCHECK_LEN(bp + 16, sizeof(struct in_addr));
                ND_PRINT((ndo, " for %s > %s", ipaddr_string(ndo, bp + 16),
                          ipaddr_string(ndo, bp + 8)));
                if (EXTRACT_BE_U_4(bp + 12) != 0xffffffff)
@@ -321,12 +321,12 @@ pimv1_print(netdissect_options *ndo,
                if (ndo->ndo_vflag) {
                        if (len < 8)
                                goto trunc;
-                       pimv1_join_prune_print(ndo, &bp[8], len - 8);
+                       pimv1_join_prune_print(ndo, bp + 8, len - 8);
                }
                break;
        }
-       ND_TCHECK(bp[4]);
-       if ((bp[4] >> 4) != 1)
+       ND_TCHECK_1(bp + 4);
+       if ((EXTRACT_U_1(bp + 4) >> 4) != 1)
                ND_PRINT((ndo, " [v%d]", EXTRACT_U_1(bp + 4) >> 4));
        return;
 
@@ -343,7 +343,7 @@ trunc:
  */
 void
 cisco_autorp_print(netdissect_options *ndo,
-                   register const u_char *bp, register u_int len)
+                   const u_char *bp, u_int len)
 {
        int type;
        int numrps;
@@ -351,9 +351,9 @@ cisco_autorp_print(netdissect_options *ndo,
 
        if (len < 8)
                goto trunc;
-       ND_TCHECK(bp[0]);
+       ND_TCHECK_1(bp);
        ND_PRINT((ndo, " auto-rp "));
-       type = bp[0];
+       type = EXTRACT_U_1(bp);
        switch (type) {
        case 0x11:
                ND_PRINT((ndo, "candidate-advert"));
@@ -366,8 +366,8 @@ cisco_autorp_print(netdissect_options *ndo,
                break;
        }
 
-       ND_TCHECK(bp[1]);
-       numrps = bp[1];
+       ND_TCHECK_1(bp + 1);
+       numrps = EXTRACT_U_1(bp + 1);
 
        ND_TCHECK_2(bp + 2);
        ND_PRINT((ndo, " Hold "));
@@ -406,8 +406,8 @@ cisco_autorp_print(netdissect_options *ndo,
                len -= 4;
                if (len < 1)
                        goto trunc;
-               ND_TCHECK(bp[0]);
-               switch (bp[0] & 0x3) {
+               ND_TCHECK_1(bp);
+               switch (EXTRACT_U_1(bp) & 0x3) {
                case 0: ND_PRINT((ndo, " PIMv?"));
                        break;
                case 1: ND_PRINT((ndo, " PIMv1"));
@@ -417,14 +417,14 @@ cisco_autorp_print(netdissect_options *ndo,
                case 3: ND_PRINT((ndo, " PIMv1+2"));
                        break;
                }
-               if (bp[0] & 0xfc)
+               if (EXTRACT_U_1(bp) & 0xfc)
                        ND_PRINT((ndo, " [rsvd=0x%02x]", EXTRACT_U_1(bp) & 0xfc));
                bp += 1;
                len -= 1;
                if (len < 1)
                        goto trunc;
-               ND_TCHECK(bp[0]);
-               nentries = bp[0];
+               ND_TCHECK_1(bp);
+               nentries = EXTRACT_U_1(bp);
                bp += 1;
                len -= 1;
                s = ' ';
@@ -434,10 +434,10 @@ cisco_autorp_print(netdissect_options *ndo,
                        ND_TCHECK_6(bp);
                        ND_PRINT((ndo, "%c%s%s/%d", s, EXTRACT_U_1(bp) & 1 ? "!" : "",
                                  ipaddr_string(ndo, bp + 2), EXTRACT_U_1(bp + 1)));
-                       if (bp[0] & 0x02) {
+                       if (EXTRACT_U_1(bp) & 0x02) {
                                ND_PRINT((ndo, " bidir"));
                        }
-                       if (bp[0] & 0xfc) {
+                       if (EXTRACT_U_1(bp) & 0xfc) {
                                ND_PRINT((ndo, "[rsvd=0x%02x]", EXTRACT_U_1(bp) & 0xfc));
                        }
                        s = ',';
@@ -453,9 +453,9 @@ trunc:
 
 void
 pim_print(netdissect_options *ndo,
-          register const u_char *bp, register u_int len, const u_char *bp2)
+          const u_char *bp, u_int len, const u_char *bp2)
 {
-       register const struct pim *pim = (const struct pim *)bp;
+       const struct pim *pim = (const struct pim *)bp;
 
 #ifdef notyet                  /* currently we see only version and type */
        ND_TCHECK(pim->pim_rsv);
@@ -566,8 +566,8 @@ pimv2_addr_print(netdissect_options *ndo,
        if (addr_len == 0) {
                if (len < 2)
                        goto trunc;
-               ND_TCHECK(bp[1]);
-               switch (bp[0]) {
+               ND_TCHECK_1(bp + 1);
+               switch (EXTRACT_U_1(bp)) {
                case 1:
                        af = AF_INET;
                        addr_len = (u_int)sizeof(struct in_addr);
@@ -579,7 +579,7 @@ pimv2_addr_print(netdissect_options *ndo,
                default:
                        return -1;
                }
-               if (bp[1] != 0)
+               if (EXTRACT_U_1(bp + 1) != 0)
                        return -1;
                hdrlen = 2;
        } else {
@@ -603,7 +603,7 @@ pimv2_addr_print(netdissect_options *ndo,
        case pimv2_unicast:
                if (len < addr_len)
                        goto trunc;
-               ND_TCHECK2(bp[0], addr_len);
+               ND_TCHECK_LEN(bp, addr_len);
                if (af == AF_INET) {
                        if (!silent)
                                ND_PRINT((ndo, "%s", ipaddr_string(ndo, bp)));
@@ -617,22 +617,22 @@ pimv2_addr_print(netdissect_options *ndo,
        case pimv2_source:
                if (len < addr_len + 2)
                        goto trunc;
-               ND_TCHECK2(bp[0], addr_len + 2);
+               ND_TCHECK_LEN(bp, addr_len + 2);
                if (af == AF_INET) {
                        if (!silent) {
                                ND_PRINT((ndo, "%s", ipaddr_string(ndo, bp + 2)));
-                               if (bp[1] != 32)
+                               if (EXTRACT_U_1(bp + 1) != 32)
                                        ND_PRINT((ndo, "/%u", EXTRACT_U_1(bp + 1)));
                        }
                }
                else if (af == AF_INET6) {
                        if (!silent) {
                                ND_PRINT((ndo, "%s", ip6addr_string(ndo, bp + 2)));
-                               if (bp[1] != 128)
+                               if (EXTRACT_U_1(bp + 1) != 128)
                                        ND_PRINT((ndo, "/%u", EXTRACT_U_1(bp + 1)));
                        }
                }
-               if (bp[0] && !silent) {
+               if (EXTRACT_U_1(bp) && !silent) {
                        if (at == pimv2_group) {
                                ND_PRINT((ndo, "(0x%02x)", EXTRACT_U_1(bp)));
                        } else {
@@ -640,7 +640,7 @@ pimv2_addr_print(netdissect_options *ndo,
                                        EXTRACT_U_1(bp) & 0x04 ? "S" : "",
                                        EXTRACT_U_1(bp) & 0x02 ? "W" : "",
                                        EXTRACT_U_1(bp) & 0x01 ? "R" : ""));
-                               if (bp[0] & 0xf8) {
+                               if (EXTRACT_U_1(bp) & 0xf8) {
                                        ND_PRINT((ndo, "+0x%02x", EXTRACT_U_1(bp) & 0xf8));
                                }
                                ND_PRINT((ndo, ")"));
@@ -667,7 +667,7 @@ pimv2_check_checksum(netdissect_options *ndo, const u_char *bp,
        const struct ip *ip;
        u_int cksum;
 
-       if (!ND_TTEST2(bp[0], len)) {
+       if (!ND_TTEST_LEN(bp, len)) {
                /* We don't have all the data. */
                return (UNVERIFIED);
        }
@@ -692,9 +692,9 @@ pimv2_check_checksum(netdissect_options *ndo, const u_char *bp,
 
 static void
 pimv2_print(netdissect_options *ndo,
-            register const u_char *bp, register u_int len, const u_char *bp2)
+            const u_char *bp, u_int len, const u_char *bp2)
 {
-       register const struct pim *pim = (const struct pim *)bp;
+       const struct pim *pim = (const struct pim *)bp;
        int advance;
        enum checksum_status cksum_status;
        int pimv2_addr_len;
@@ -771,7 +771,7 @@ pimv2_print(netdissect_options *ndo,
 
                        if (len < olen)
                                goto trunc;
-                       ND_TCHECK2(bp[0], olen);
+                       ND_TCHECK_LEN(bp, olen);
                        switch (otype) {
                        case PIMV2_HELLO_OPTION_HOLDTIME:
                                if (olen != 2) {
@@ -825,9 +825,10 @@ pimv2_print(netdissect_options *ndo,
                                        ND_PRINT((ndo, "ERROR: Option Length != 4 Bytes (%u)", olen));
                                } else {
                                        ND_PRINT((ndo, "v%d", EXTRACT_U_1(bp)));
-                                       if (*(bp+1) != 0) {
+                                       if (EXTRACT_U_1(bp + 1) != 0) {
                                                ND_PRINT((ndo, ", interval "));
-                                               unsigned_relts_print(ndo, *(bp+1));
+                                               unsigned_relts_print(ndo,
+                                                                    EXTRACT_U_1(bp + 1));
                                        }
                                        if (EXTRACT_BE_U_2(bp + 2) != 0) {
                                                ND_PRINT((ndo, " ?0x%04x?", EXTRACT_BE_U_2(bp + 2)));
@@ -873,7 +874,7 @@ pimv2_print(netdissect_options *ndo,
 
                if (len < 4)
                        goto trunc;
-               ND_TCHECK2(*bp, PIMV2_REGISTER_FLAG_LEN);
+               ND_TCHECK_LEN(bp, PIMV2_REGISTER_FLAG_LEN);
 
                ND_PRINT((ndo, ", Flags [ %s ]\n\t",
                          tok2str(pimv2_register_flag_values,
@@ -976,7 +977,7 @@ pimv2_print(netdissect_options *ndo,
                if (len < 4)
                        goto trunc;
                ND_TCHECK_4(bp);
-               ngroup = bp[1];
+               ngroup = EXTRACT_U_1(bp + 1);
                holdtime = EXTRACT_BE_U_2(bp + 2);
                ND_PRINT((ndo, "\n\t  %u group(s)", ngroup));
                if (PIM_TYPE(pim->pim_typever) != 7) {  /*not for Graft-ACK*/
@@ -1028,11 +1029,11 @@ pimv2_print(netdissect_options *ndo,
                len -= 2;
                if (len < 1)
                        goto trunc;
-               ND_TCHECK(bp[0]);
+               ND_TCHECK_1(bp);
                ND_PRINT((ndo, " hashmlen=%d", EXTRACT_U_1(bp)));
                if (len < 2)
                        goto trunc;
-               ND_TCHECK(bp[2]);
+               ND_TCHECK_1(bp + 2);
                ND_PRINT((ndo, " BSRprio=%d", EXTRACT_U_1(bp + 1)));
                bp += 2;
                len -= 2;
@@ -1055,11 +1056,11 @@ pimv2_print(netdissect_options *ndo,
                        /* RP-Count, Frag RP-Cnt, and rsvd */
                        if (len < 1)
                                goto trunc;
-                       ND_TCHECK(bp[0]);
+                       ND_TCHECK_1(bp);
                        ND_PRINT((ndo, " RPcnt=%d", EXTRACT_U_1(bp)));
                        if (len < 2)
                                goto trunc;
-                       ND_TCHECK(bp[1]);
+                       ND_TCHECK_1(bp + 1);
                        ND_PRINT((ndo, " FRPcnt=%d", frpcnt = EXTRACT_U_1(bp + 1)));
                        if (len < 4)
                                goto trunc;
@@ -1085,7 +1086,7 @@ pimv2_print(netdissect_options *ndo,
                                                     EXTRACT_BE_U_2(bp));
                                if (len < 3)
                                        goto trunc;
-                               ND_TCHECK(bp[2]);
+                               ND_TCHECK_1(bp + 2);
                                ND_PRINT((ndo, ",prio=%d", EXTRACT_U_1(bp + 2)));
                                if (len < 4)
                                        goto trunc;
@@ -1108,7 +1109,7 @@ pimv2_print(netdissect_options *ndo,
                if (len < 8)
                        goto trunc;
                ND_TCHECK_8(bp);
-               if (bp[0] & 0x80)
+               if (EXTRACT_U_1(bp) & 0x80)
                        ND_PRINT((ndo, " RPT"));
                ND_PRINT((ndo, " pref=%u", EXTRACT_BE_U_4(bp) & 0x7fffffff));
                ND_PRINT((ndo, " metric=%u", EXTRACT_BE_U_4(bp + 4)));
@@ -1121,12 +1122,12 @@ pimv2_print(netdissect_options *ndo,
                /* Prefix-Cnt, Priority, and Holdtime */
                if (len < 1)
                        goto trunc;
-               ND_TCHECK(bp[0]);
+               ND_TCHECK_1(bp);
                ND_PRINT((ndo, " prefix-cnt=%d", EXTRACT_U_1(bp)));
-               pfxcnt = bp[0];
+               pfxcnt = EXTRACT_U_1(bp);
                if (len < 2)
                        goto trunc;
-               ND_TCHECK(bp[1]);
+               ND_TCHECK_1(bp + 1);
                ND_PRINT((ndo, " prio=%d", EXTRACT_U_1(bp + 1)));
                if (len < 4)
                        goto trunc;