CI: Add warning exemptions for Sun C (suncc-5.14) on Solaris 10

[tcpdump] / print-mobility.c

diff --git a/print-mobility.c b/print-mobility.c
index 8fec5044ef7842dbe1c3e627122bdfb39a632236..2f905f1ba9e9da899ec0374bc1ddf9987cd4ee1a 100644 (file)
--- a/print-mobility.c
+++ b/print-mobility.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2002 WIDE Project.
  * All rights reserved.
 /*
  * Copyright (C) 2002 WIDE Project.
  * All rights reserved.

- * 
+ *

  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:


@@ -13,7 +13,7 @@
  * 3. Neither the name of the project nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  * 3. Neither the name of the project nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.

- * 
+ *

  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE


@@ -27,39 +27,30 @@
  * SUCH DAMAGE.
  */
 
  * SUCH DAMAGE.
  */
 

-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/* \summary: IPv6 mobility printer */
+/* RFC 3775 */

 
 

-#ifndef lint
-static const char rcsid[] =
-     "@(#) $Header: /tcpdump/master/tcpdump/print-mobility.c,v 1.2 2002-07-08 08:58:37 fenner Exp $";
-#endif
+#include <config.h>

 
 

-#ifdef INET6
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/socket.h>
+#include "netdissect-stdinc.h"

 
 

-#include <netinet/in.h>
-#include <stdio.h>
+#include "netdissect.h"
+#include "addrtoname.h"
+#include "extract.h"

 
 #include "ip6.h"
 
 
 #include "ip6.h"
 

-#include "interface.h"
-#include "addrtoname.h"
-#include "extract.h"           /* must come after interface.h */

 
 /* Mobility header */
 struct ip6_mobility {
 
 /* Mobility header */
 struct ip6_mobility {

-        u_int8_t ip6m_pproto;   /* following payload protocol (for PG) */
-       u_int8_t ip6m_len;      /* length in units of 8 octets */
-       u_int16_t ip6m_type;    /* message type */
-       u_int16_t ip6m_cksum;   /* sum of IPv6 pseudo-header and MH */
+       nd_uint8_t ip6m_pproto; /* following payload protocol (for PG) */
+       nd_uint8_t ip6m_len;    /* length in units of 8 octets */
+       nd_uint8_t ip6m_type;   /* message type */
+       nd_uint8_t reserved;    /* reserved */
+       nd_uint16_t ip6m_cksum; /* sum of IPv6 pseudo-header and MH */

        union {
        union {

-               u_int16_t       ip6m_un_data16[1]; /* type-specific field */
-               u_int8_t        ip6m_un_data8[2];  /* type-specific fiedl */
+               nd_uint16_t     ip6m_un_data16[1]; /* type-specific field */
+               nd_uint8_t      ip6m_un_data8[2];  /* type-specific field */

        } ip6m_dataun;
 };
 
        } ip6m_dataun;
 };
 


@@ -68,226 +59,272 @@ struct ip6_mobility {
 
 #define IP6M_MINLEN    8
 
 
 #define IP6M_MINLEN    8
 

+/* https://www.iana.org/assignments/mobility-parameters/mobility-parameters.xhtml */
+

 /* message type */
 /* message type */

-#define IP6M_BINDING_REQUEST   0x0000  /* Binding Refresh Request */
-#define IP6M_HOME_TEST_INIT    0x0001  /* Home Test Init */
-#define IP6M_CAREOF_TEST_INIT  0x0002  /* Care-of Test Init */
-#define IP6M_HOME_TEST         0x0003  /* Home Test */
-#define IP6M_CAREOF_TEST       0x0004  /* Care-of Test */
-#define IP6M_BINDING_UPDATE    0x0005  /* Binding Update */
-#define IP6M_BINDING_ACK       0x0006  /* Binding Acknowledgement */
-#define IP6M_BINDING_ERROR     0x0007  /* Binding Error */
+#define IP6M_BINDING_REQUEST   0       /* Binding Refresh Request */
+#define IP6M_HOME_TEST_INIT    1       /* Home Test Init */
+#define IP6M_CAREOF_TEST_INIT  2       /* Care-of Test Init */
+#define IP6M_HOME_TEST         3       /* Home Test */
+#define IP6M_CAREOF_TEST       4       /* Care-of Test */
+#define IP6M_BINDING_UPDATE    5       /* Binding Update */
+#define IP6M_BINDING_ACK       6       /* Binding Acknowledgement */
+#define IP6M_BINDING_ERROR     7       /* Binding Error */
+#define IP6M_MAX               7
+
+static const struct tok ip6m_str[] = {
+       { IP6M_BINDING_REQUEST,  "BRR"  },
+       { IP6M_HOME_TEST_INIT,   "HoTI" },
+       { IP6M_CAREOF_TEST_INIT, "CoTI" },
+       { IP6M_HOME_TEST,        "HoT"  },
+       { IP6M_CAREOF_TEST,      "CoT"  },
+       { IP6M_BINDING_UPDATE,   "BU"   },
+       { IP6M_BINDING_ACK,      "BA"   },
+       { IP6M_BINDING_ERROR,    "BE"   },
+       { 0, NULL }
+};
+
+static const unsigned ip6m_hdrlen[IP6M_MAX + 1] = {
+       IP6M_MINLEN,      /* IP6M_BINDING_REQUEST  */
+       IP6M_MINLEN + 8,  /* IP6M_HOME_TEST_INIT   */
+       IP6M_MINLEN + 8,  /* IP6M_CAREOF_TEST_INIT */
+       IP6M_MINLEN + 16, /* IP6M_HOME_TEST        */
+       IP6M_MINLEN + 16, /* IP6M_CAREOF_TEST      */
+       IP6M_MINLEN + 4,  /* IP6M_BINDING_UPDATE   */
+       IP6M_MINLEN + 4,  /* IP6M_BINDING_ACK      */
+       IP6M_MINLEN + 16, /* IP6M_BINDING_ERROR    */
+};

 
 /* Mobility Header Options */
 #define IP6MOPT_MINLEN         2
 
 /* Mobility Header Options */
 #define IP6MOPT_MINLEN         2

-#define IP6MOPT_PAD1          0x0
-#define IP6MOPT_PADN          0x1
-#define IP6MOPT_UI            0x2
-#define IP6MOPT_UI_MINLEN       4
-#define IP6MOPT_ALTCOA        0x3
+#define IP6MOPT_PAD1          0x0      /* Pad1 */
+#define IP6MOPT_PADN          0x1      /* PadN */
+#define IP6MOPT_REFRESH              0x2       /* Binding Refresh Advice */
+#define IP6MOPT_REFRESH_MINLEN  4
+#define IP6MOPT_ALTCOA        0x3      /* Alternate Care-of Address */

 #define IP6MOPT_ALTCOA_MINLEN  18
 #define IP6MOPT_ALTCOA_MINLEN  18

-#define IP6MOPT_NONCEID       0x4
+#define IP6MOPT_NONCEID       0x4      /* Nonce Indices */

 #define IP6MOPT_NONCEID_MINLEN  6
 #define IP6MOPT_NONCEID_MINLEN  6

-#define IP6MOPT_AUTH          0x5
-#define IP6MOPT_AUTH_MINLEN     2 /* 2+len */
+#define IP6MOPT_AUTH          0x5      /* Binding Authorization Data */
+#define IP6MOPT_AUTH_MINLEN    12
+
+static const struct tok ip6m_binding_update_bits [] = {
+       { 0x08, "A" },
+       { 0x04, "H" },
+       { 0x02, "L" },
+       { 0x01, "K" },
+       { 0, NULL }
+};

 
 

-void
-mobility_opt_print(const u_char *bp, int len)
+static int
+mobility_opt_print(netdissect_options *ndo,
+                   const u_char *bp, const unsigned len)

 {
 {

-       int i;
-       int optlen;
+       unsigned i, optlen;

 
        for (i = 0; i < len; i += optlen) {
 
        for (i = 0; i < len; i += optlen) {

-               if (bp[i] == IP6MOPT_PAD1)
+               if (GET_U_1(bp + i) == IP6MOPT_PAD1)

                        optlen = 1;
                else {
                        optlen = 1;
                else {

-                       if (i + 1 < len)
-                               optlen = bp[i + 1];
-                       else
+                       if (i + 1 < len) {
+                               optlen = GET_U_1(bp + i + 1) + 2;
+                       } else

                                goto trunc;
                                goto trunc;

-                       if (optlen < IP6MOPT_MINLEN)
-                               optlen = IP6MOPT_MINLEN;        /* XXX */

                }
                if (i + optlen > len)
                        goto trunc;
                }
                if (i + optlen > len)
                        goto trunc;

+               ND_TCHECK_1(bp + i + optlen);

 
 

-               switch (bp[i]) {
+               switch (GET_U_1(bp + i)) {

                case IP6MOPT_PAD1:
                case IP6MOPT_PAD1:

-                       printf("(pad1)");
+                       ND_PRINT("(pad1)");

                        break;
                case IP6MOPT_PADN:
                        if (len - i < IP6MOPT_MINLEN) {
                        break;
                case IP6MOPT_PADN:
                        if (len - i < IP6MOPT_MINLEN) {

-                               printf("(padn: trunc)");
+                               ND_PRINT("(padn: trunc)");

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       printf("(padn)");
+                       ND_PRINT("(padn)");

                        break;
                        break;

-               case IP6MOPT_UI:
-                       if (len - i < IP6MOPT_UI_MINLEN) {
-                               printf("(ui: trunc)");
+               case IP6MOPT_REFRESH:
+                       if (len - i < IP6MOPT_REFRESH_MINLEN) {
+                               ND_PRINT("(refresh: trunc)");

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       printf("(ui: 0x%04x)", EXTRACT_16BITS(&bp[i+2]));
+                       /* units of 4 secs */
+                       ND_PRINT("(refresh: %u)",
+                               GET_BE_U_2(bp + i + 2) << 2);

                        break;
                case IP6MOPT_ALTCOA:
                        if (len - i < IP6MOPT_ALTCOA_MINLEN) {
                        break;
                case IP6MOPT_ALTCOA:
                        if (len - i < IP6MOPT_ALTCOA_MINLEN) {

-                               printf("(altcoa: trunc)");
+                               ND_PRINT("(altcoa: trunc)");

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       printf("(alt-CoA: %s)", ip6addr_string(&bp[i+2]));
+                       ND_PRINT("(alt-CoA: %s)", GET_IP6ADDR_STRING(bp + i + 2));

                        break;
                case IP6MOPT_NONCEID:
                        if (len - i < IP6MOPT_NONCEID_MINLEN) {
                        break;
                case IP6MOPT_NONCEID:
                        if (len - i < IP6MOPT_NONCEID_MINLEN) {

-                               printf("(ni: trunc)");
+                               ND_PRINT("(ni: trunc)");

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       printf("(ni: ho=0x%04x ci=0x%04x)",
-                               EXTRACT_16BITS(&bp[i+2]),
-                               EXTRACT_16BITS(&bp[i+4]));
+                       ND_PRINT("(ni: ho=0x%04x co=0x%04x)",
+                               GET_BE_U_2(bp + i + 2),
+                               GET_BE_U_2(bp + i + 4));

                        break;
                case IP6MOPT_AUTH:
                        if (len - i < IP6MOPT_AUTH_MINLEN) {
                        break;
                case IP6MOPT_AUTH:
                        if (len - i < IP6MOPT_AUTH_MINLEN) {

-                               printf("(auth: trunc)");
+                               ND_PRINT("(auth: trunc)");

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       printf("(auth spi: 0x%08x)",
-                               EXTRACT_32BITS(&bp[i+2]));
+                       ND_PRINT("(auth)");

                        break;
                default:
                        if (len - i < IP6MOPT_MINLEN) {
                        break;
                default:
                        if (len - i < IP6MOPT_MINLEN) {

-                               printf("(sopt_type %d: trunc)", bp[i]);
+                               ND_PRINT("(sopt_type %u: trunc)",
+                                        GET_U_1(bp + i));

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       printf("(type-0x%02x: len=%d)", bp[i], bp[i + 1]);
+                       ND_PRINT("(type-0x%02x: len=%u)", GET_U_1(bp + i),
+                                GET_U_1(bp + i + 1));

                        break;
                }
        }
                        break;
                }
        }

-       return;
+       return 0;

 
 trunc:
 
 trunc:

-       printf("[trunc] ");
+       return 1;

 }
 
 /*
  * Mobility Header
  */
 int
 }
 
 /*
  * Mobility Header
  */
 int

-mobility_print(const u_char *bp, const u_char *bp2)
+mobility_print(netdissect_options *ndo,
+               const u_char *bp, const u_char *bp2 _U_)

 {
        const struct ip6_mobility *mh;
 {
        const struct ip6_mobility *mh;

-       const struct ip6_hdr *ip6;

        const u_char *ep;
        const u_char *ep;

-       int mhlen, hlen, type;
+       unsigned mhlen, hlen;
+       uint8_t type;

 
 

-       mh = (struct ip6_mobility *)bp;
-       ip6 = (struct ip6_hdr *)bp2;
+       ndo->ndo_protocol = "mobility";
+       mh = (const struct ip6_mobility *)bp;

 
        /* 'ep' points to the end of available data. */
 
        /* 'ep' points to the end of available data. */

-       ep = snapend;
+       ep = ndo->ndo_snapend;

 
 

-       TCHECK(mh->ip6m_len);
-       mhlen = (int)(mh->ip6m_len << 3);
-       if (mhlen < IP6M_MINLEN)
-               mhlen = IP6M_MINLEN;    /* XXX */
+       if (!ND_TTEST_1(mh->ip6m_len)) {
+               /*
+                * There's not enough captured data to include the
+                * mobility header length.
+                *
+                * Our caller expects us to return the length, however,
+                * so return a value that will run to the end of the
+                * captured data.
+                *
+                * XXX - "ip6_print()" doesn't do anything with the
+                * returned length, however, as it breaks out of the
+                * header-processing loop.
+                */
+               mhlen = (unsigned)(ep - bp);
+               goto trunc;
+       }
+       mhlen = (GET_U_1(mh->ip6m_len) + 1) << 3;

 
        /* XXX ip6m_cksum */
 
 
        /* XXX ip6m_cksum */
 

-       TCHECK(mh->ip6m_type);
-       type = ntohs(mh->ip6m_type);
+       type = GET_U_1(mh->ip6m_type);
+       if (type <= IP6M_MAX && mhlen < ip6m_hdrlen[type]) {
+               ND_PRINT("(header length %u is too small for type %u)", mhlen, type);
+               goto trunc;
+       }
+       ND_PRINT("mobility: %s", tok2str(ip6m_str, "type-#%u", type));

        switch (type) {
        case IP6M_BINDING_REQUEST:
        switch (type) {
        case IP6M_BINDING_REQUEST:

-               printf("mobility: BRR");

                hlen = IP6M_MINLEN;
                break;
        case IP6M_HOME_TEST_INIT:
        case IP6M_CAREOF_TEST_INIT:
                hlen = IP6M_MINLEN;
                break;
        case IP6M_HOME_TEST_INIT:
        case IP6M_CAREOF_TEST_INIT:

-               printf("mobility: %soTI",
-                       type == IP6M_HOME_TEST_INIT ? "H" : "C");

                hlen = IP6M_MINLEN;
                hlen = IP6M_MINLEN;

-               TCHECK2(*mh, hlen + 4);
-               printf(" cookie=0x%x", EXTRACT_32BITS(&bp[hlen]));
-               hlen += 4;
+               if (ndo->ndo_vflag) {
+                       ND_PRINT(" %s Init Cookie=%08x:%08x",
+                              type == IP6M_HOME_TEST_INIT ? "Home" : "Care-of",
+                              GET_BE_U_4(bp + hlen),
+                              GET_BE_U_4(bp + hlen + 4));
+               }
+               hlen += 8;

                break;
        case IP6M_HOME_TEST:
        case IP6M_CAREOF_TEST:
                break;
        case IP6M_HOME_TEST:
        case IP6M_CAREOF_TEST:

-               printf("mobility: %soT",
-                       type == IP6M_HOME_TEST ? "H" : "C");
+               ND_PRINT(" nonce id=0x%x", GET_BE_U_2(mh->ip6m_data16[0]));

                hlen = IP6M_MINLEN;
                hlen = IP6M_MINLEN;

-               TCHECK2(*mh, hlen + 2);
-               printf(" nonce id=0x%x", EXTRACT_16BITS(&bp[hlen]));
-               hlen += 2;
-               /* Reserved (16bits) */
-               hlen += 2;
-               TCHECK2(*mh, hlen + 4);
-               printf(" mobile cookie=0x%x", EXTRACT_32BITS(&bp[hlen]));
-               hlen += 4;
-               /* Home(Care-of) Cookie (128 bits) */
-               hlen += 16;
+               if (ndo->ndo_vflag) {
+                       ND_PRINT(" %s Init Cookie=%08x:%08x",
+                              type == IP6M_HOME_TEST ? "Home" : "Care-of",
+                              GET_BE_U_4(bp + hlen),
+                              GET_BE_U_4(bp + hlen + 4));
+               }
+               hlen += 8;
+               if (ndo->ndo_vflag) {
+                       ND_PRINT(" %s Keygen Token=%08x:%08x",
+                              type == IP6M_HOME_TEST ? "Home" : "Care-of",
+                              GET_BE_U_4(bp + hlen),
+                              GET_BE_U_4(bp + hlen + 4));
+               }
+               hlen += 8;

                break;
        case IP6M_BINDING_UPDATE:
                break;
        case IP6M_BINDING_UPDATE:

-               printf("mobility: BU");
-               TCHECK(mh->ip6m_data8[0]);
-               if (mh->ip6m_data8[0] & 0xf0)
-                       printf(" ");
-               if (mh->ip6m_data8[0] & 0x80)
-                       printf("A");
-               if (mh->ip6m_data8[0] & 0x40)
-                       printf("H");
-               if (mh->ip6m_data8[0] & 0x20)
-                       printf("S");
-               if (mh->ip6m_data8[0] & 0x10)
-                       printf("D");
+           {
+               int bits;
+               ND_PRINT(" seq#=%u", GET_BE_U_2(mh->ip6m_data16[0]));

                hlen = IP6M_MINLEN;
                hlen = IP6M_MINLEN;

-               TCHECK2(*mh, hlen + 2);
-               printf(" seq#=%d", EXTRACT_16BITS(&bp[hlen]));
-               hlen += 2;
-               /* Reserved (16bits) */
+               ND_TCHECK_2(bp + hlen);
+               bits = (GET_U_1(bp + hlen) & 0xf0) >> 4;
+               if (bits) {
+                       ND_PRINT(" ");
+                       ND_PRINT("%s",
+                                bittok2str_nosep(ip6m_binding_update_bits,
+                                "bits-#0x%x", bits));
+               }
+               /* Reserved (4bits) */
+               hlen += 1;
+               /* Reserved (8bits) */
+               hlen += 1;
+               /* units of 4 secs */
+               ND_PRINT(" lifetime=%u", GET_BE_U_2(bp + hlen) << 2);

                hlen += 2;
                hlen += 2;

-               TCHECK2(*mh, hlen + 4);
-               printf(" lifetime=%d", EXTRACT_32BITS(&bp[hlen]));
-               hlen += 4;
-               TCHECK2(*mh, hlen + 16);
-               printf(" homeaddr %s", ip6addr_string(&bp[hlen]));
-               hlen += 16;

                break;
                break;

+           }

        case IP6M_BINDING_ACK:
        case IP6M_BINDING_ACK:

-               printf("mobility: BA");
-               TCHECK(mh->ip6m_data8[0]);
-               printf(" status=%d", mh->ip6m_data8[0]);
+               ND_PRINT(" status=%u", GET_U_1(mh->ip6m_data8[0]));
+               if (GET_U_1(mh->ip6m_data8[1]) & 0x80)
+                       ND_PRINT(" K");
+               /* Reserved (7bits) */

                hlen = IP6M_MINLEN;
                hlen = IP6M_MINLEN;

-               TCHECK2(*mh, hlen + 2);
-               printf(" seq#=%d", EXTRACT_16BITS(&bp[hlen]));
+               ND_PRINT(" seq#=%u", GET_BE_U_2(bp + hlen));

                hlen += 2;
                hlen += 2;

-               /* Reserved (16bits) */
+               /* units of 4 secs */
+               ND_PRINT(" lifetime=%u", GET_BE_U_2(bp + hlen) << 2);

                hlen += 2;
                hlen += 2;

-               TCHECK2(*mh, hlen + 4);
-               printf(" lifetime=%d", EXTRACT_32BITS(&bp[hlen]));
-               hlen += 4;
-               TCHECK2(*mh, hlen + 4);
-               printf(" refresh=%d", ntohl(*(u_int32_t *)&bp[hlen]));
-               hlen += 4;

                break;
        case IP6M_BINDING_ERROR:
                break;
        case IP6M_BINDING_ERROR:

-               printf("mobility: BE");
-               TCHECK(mh->ip6m_data8[0]);
-               printf(" status=%d", mh->ip6m_data8[0]);
+               ND_PRINT(" status=%u", GET_U_1(mh->ip6m_data8[0]));
+               /* Reserved */

                hlen = IP6M_MINLEN;
                hlen = IP6M_MINLEN;

-               TCHECK2(*mh, hlen + 16);
-               printf(" homeaddr %s", ip6addr_string(&bp[hlen]));
+               ND_PRINT(" homeaddr %s", GET_IP6ADDR_STRING(bp + hlen));

                hlen += 16;
                break;
        default:
                hlen += 16;
                break;
        default:

-               printf("mobility: type-#%d len=%d", type, mh->ip6m_len);
+               ND_PRINT(" len=%u", GET_U_1(mh->ip6m_len));

                return(mhlen);
                return(mhlen);

-               break;

        }
        }

-       if (vflag)
-               mobility_opt_print(&bp[hlen], mhlen - hlen);
+       if (ndo->ndo_vflag)
+               if (mobility_opt_print(ndo, bp + hlen, mhlen - hlen))
+                       goto trunc;

 
        return(mhlen);
 
  trunc:
 
        return(mhlen);
 
  trunc:

-       fputs("[|MOBILITY]", stdout);
-       return(mhlen);
+       nd_print_trunc(ndo);
+       return(-1);

 }
 }

-#endif /* INET6 */