Fix spaces

[tcpdump] / print-mobility.c

diff --git a/print-mobility.c b/print-mobility.c
index 787d04092a1a165a761fb487bf5c0fb1e16f5cdb..6fd956281a5287609b15acf6a825933ee5688abf 100644 (file)
--- a/print-mobility.c
+++ b/print-mobility.c
@@ -27,28 +27,32 @@
  * SUCH DAMAGE.
  */
 
  * SUCH DAMAGE.
  */
 

+/* \summary: IPv6 mobility printer */
+/* RFC 3775 */
+

 #ifdef HAVE_CONFIG_H
 #ifdef HAVE_CONFIG_H

-#include "config.h"
+#include <config.h>

 #endif
 
 #endif
 

-#ifdef INET6
-#include <tcpdump-stdinc.h>
+#include "netdissect-stdinc.h"

 
 

-#include "ip6.h"
-#include "interface.h"
+#include "netdissect.h"

 #include "addrtoname.h"
 #include "addrtoname.h"

-#include "extract.h"           /* must come after interface.h */
+#include "extract.h"
+
+#include "ip6.h"
+

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

-       uint8_t ip6m_pproto;    /* following payload protocol (for PG) */
-       uint8_t ip6m_len;       /* length in units of 8 octets */
-       uint8_t ip6m_type;      /* message type */
-       uint8_t reserved;       /* reserved */
-       uint16_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 {

-               uint16_t        ip6m_un_data16[1]; /* type-specific field */
-               uint8_t         ip6m_un_data8[2];  /* type-specific field */
+               nd_uint16_t     ip6m_un_data16[1]; /* type-specific field */
+               nd_uint8_t      ip6m_un_data8[2];  /* type-specific field */

        } ip6m_dataun;
 };
 
        } ip6m_dataun;
 };
 


@@ -106,84 +110,88 @@ static const unsigned ip6m_hdrlen[IP6M_MAX + 1] = {
 #define IP6MOPT_AUTH          0x5      /* Binding Authorization Data */
 #define IP6MOPT_AUTH_MINLEN    12
 
 #define IP6MOPT_AUTH          0x5      /* Binding Authorization Data */
 #define IP6MOPT_AUTH_MINLEN    12
 

-static void
+static int

 mobility_opt_print(netdissect_options *ndo,
                    const u_char *bp, const unsigned len)
 {
        unsigned i, optlen;
 
        for (i = 0; i < len; i += optlen) {
 mobility_opt_print(netdissect_options *ndo,
                    const u_char *bp, const unsigned len)
 {
        unsigned i, optlen;
 
        for (i = 0; i < len; i += optlen) {

-               ND_TCHECK(bp[i]);
-               if (bp[i] == IP6MOPT_PAD1)
+               ND_TCHECK_1(bp + i);
+               if (EXTRACT_U_1(bp + i) == IP6MOPT_PAD1)

                        optlen = 1;
                else {
                        if (i + 1 < len) {
                        optlen = 1;
                else {
                        if (i + 1 < len) {

-                               ND_TCHECK(bp[i + 1]);
-                               optlen = bp[i + 1] + 2;
+                               ND_TCHECK_1(bp + i + 1);
+                               optlen = EXTRACT_U_1(bp + i + 1) + 2;

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

-               ND_TCHECK(bp[i + optlen]);
+               ND_TCHECK_1(bp + i + optlen);

 
 

-               switch (bp[i]) {
+               switch (EXTRACT_U_1(bp + i)) {

                case IP6MOPT_PAD1:
                case IP6MOPT_PAD1:

-                       ND_PRINT((ndo, "(pad1)"));
+                       ND_PRINT("(pad1)");

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

-                               ND_PRINT((ndo, "(padn: trunc)"));
+                               ND_PRINT("(padn: trunc)");

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       ND_PRINT((ndo, "(padn)"));
+                       ND_PRINT("(padn)");

                        break;
                case IP6MOPT_REFRESH:
                        if (len - i < IP6MOPT_REFRESH_MINLEN) {
                        break;
                case IP6MOPT_REFRESH:
                        if (len - i < IP6MOPT_REFRESH_MINLEN) {

-                               ND_PRINT((ndo, "(refresh: trunc)"));
+                               ND_PRINT("(refresh: trunc)");

                                goto trunc;
                        }
                        /* units of 4 secs */
                                goto trunc;
                        }
                        /* units of 4 secs */

-                       ND_PRINT((ndo, "(refresh: %u)",
-                               EXTRACT_16BITS(&bp[i+2]) << 2));
+                       ND_TCHECK_2(bp + i + 2);
+                       ND_PRINT("(refresh: %u)",
+                               EXTRACT_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) {

-                               ND_PRINT((ndo, "(altcoa: trunc)"));
+                               ND_PRINT("(altcoa: trunc)");

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       ND_PRINT((ndo, "(alt-CoA: %s)", ip6addr_string(ndo, &bp[i+2])));
+                       ND_TCHECK_16(bp + i + 2);
+                       ND_PRINT("(alt-CoA: %s)", ip6addr_string(ndo, bp + i + 2));

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

-                               ND_PRINT((ndo, "(ni: trunc)"));
+                               ND_PRINT("(ni: trunc)");

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       ND_PRINT((ndo, "(ni: ho=0x%04x co=0x%04x)",
-                               EXTRACT_16BITS(&bp[i+2]),
-                               EXTRACT_16BITS(&bp[i+4])));
+                       ND_TCHECK_2(bp + i + 2);
+                       ND_TCHECK_2(bp + i + 4);
+                       ND_PRINT("(ni: ho=0x%04x co=0x%04x)",
+                               EXTRACT_BE_U_2(bp + i + 2),
+                               EXTRACT_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) {

-                               ND_PRINT((ndo, "(auth: trunc)"));
+                               ND_PRINT("(auth: trunc)");

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       ND_PRINT((ndo, "(auth)"));
+                       ND_PRINT("(auth)");

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

-                               ND_PRINT((ndo, "(sopt_type %u: trunc)", bp[i]));
+                               ND_PRINT("(sopt_type %u: trunc)", EXTRACT_U_1(bp + i));

                                goto trunc;
                        }
                                goto trunc;
                        }

-                       ND_PRINT((ndo, "(type-0x%02x: len=%u)", bp[i], bp[i + 1]));
+                       ND_PRINT("(type-0x%02x: len=%u)", EXTRACT_U_1(bp + i), EXTRACT_U_1(bp + i + 1));

                        break;
                }
        }
                        break;
                }
        }

-       return;
+       return 0;

 
 trunc:
 
 trunc:

-       ND_PRINT((ndo, "[trunc] "));
+       return 1;

 }
 
 /*
 }
 
 /*


@@ -198,12 +206,13 @@ mobility_print(netdissect_options *ndo,
        unsigned mhlen, hlen;
        uint8_t type;
 
        unsigned mhlen, hlen;
        uint8_t type;
 

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

 
        /* 'ep' points to the end of available data. */
        ep = ndo->ndo_snapend;
 
 
        /* 'ep' points to the end of available data. */
        ep = ndo->ndo_snapend;
 

-       if (!ND_TTEST(mh->ip6m_len)) {
+       if (!ND_TTEST_1(mh->ip6m_len)) {

                /*
                 * There's not enough captured data to include the
                 * mobility header length.
                /*
                 * There's not enough captured data to include the
                 * mobility header length.


@@ -219,17 +228,17 @@ mobility_print(netdissect_options *ndo,
                mhlen = ep - bp;
                goto trunc;
        }
                mhlen = ep - bp;
                goto trunc;
        }

-       mhlen = (mh->ip6m_len + 1) << 3;
+       mhlen = (EXTRACT_U_1(mh->ip6m_len) + 1) << 3;

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

-       ND_TCHECK(mh->ip6m_type);
-       type = mh->ip6m_type;
+       ND_TCHECK_1(mh->ip6m_type);
+       type = EXTRACT_U_1(mh->ip6m_type);

        if (type <= IP6M_MAX && mhlen < ip6m_hdrlen[type]) {
        if (type <= IP6M_MAX && mhlen < ip6m_hdrlen[type]) {

-               ND_PRINT((ndo, "(header length %u is too small for type %u)", mhlen, type));
+               ND_PRINT("(header length %u is too small for type %u)", mhlen, type);

                goto trunc;
        }
                goto trunc;
        }

-       ND_PRINT((ndo, "mobility: %s", tok2str(ip6m_str, "type-#%u", type)));
+       ND_PRINT("mobility: %s", tok2str(ip6m_str, "type-#%u", type));

        switch (type) {
        case IP6M_BINDING_REQUEST:
                hlen = IP6M_MINLEN;
        switch (type) {
        case IP6M_BINDING_REQUEST:
                hlen = IP6M_MINLEN;


@@ -237,97 +246,99 @@ mobility_print(netdissect_options *ndo,
        case IP6M_HOME_TEST_INIT:
        case IP6M_CAREOF_TEST_INIT:
                hlen = IP6M_MINLEN;
        case IP6M_HOME_TEST_INIT:
        case IP6M_CAREOF_TEST_INIT:
                hlen = IP6M_MINLEN;

-               if (ndo->ndo_vflag) {
-                       ND_TCHECK2(*mh, hlen + 8);
-                       ND_PRINT((ndo, " %s Init Cookie=%08x:%08x",
+               if (ndo->ndo_vflag) {
+                       ND_TCHECK_4(bp + hlen + 4);
+                       ND_PRINT(" %s Init Cookie=%08x:%08x",

                               type == IP6M_HOME_TEST_INIT ? "Home" : "Care-of",
                               type == IP6M_HOME_TEST_INIT ? "Home" : "Care-of",

-                              EXTRACT_32BITS(&bp[hlen]),
-                              EXTRACT_32BITS(&bp[hlen + 4])));
+                              EXTRACT_BE_U_4(bp + hlen),
+                              EXTRACT_BE_U_4(bp + hlen + 4));

                }
                hlen += 8;
                break;
        case IP6M_HOME_TEST:
        case IP6M_CAREOF_TEST:
                }
                hlen += 8;
                break;
        case IP6M_HOME_TEST:
        case IP6M_CAREOF_TEST:

-               ND_TCHECK(mh->ip6m_data16[0]);
-               ND_PRINT((ndo, " nonce id=0x%x", EXTRACT_16BITS(&mh->ip6m_data16[0])));
+               ND_TCHECK_2(mh->ip6m_data16[0]);
+               ND_PRINT(" nonce id=0x%x", EXTRACT_BE_U_2(mh->ip6m_data16[0]));

                hlen = IP6M_MINLEN;
                hlen = IP6M_MINLEN;

-               if (ndo->ndo_vflag) {
-                       ND_TCHECK2(*mh, hlen + 8);
-                       ND_PRINT((ndo, " %s Init Cookie=%08x:%08x",
+               if (ndo->ndo_vflag) {
+                       ND_TCHECK_4(bp + hlen + 4);
+                       ND_PRINT(" %s Init Cookie=%08x:%08x",

                               type == IP6M_HOME_TEST ? "Home" : "Care-of",
                               type == IP6M_HOME_TEST ? "Home" : "Care-of",

-                              EXTRACT_32BITS(&bp[hlen]),
-                              EXTRACT_32BITS(&bp[hlen + 4])));
+                              EXTRACT_BE_U_4(bp + hlen),
+                              EXTRACT_BE_U_4(bp + hlen + 4));

                }
                hlen += 8;
                }
                hlen += 8;

-               if (ndo->ndo_vflag) {
-                       ND_TCHECK2(*mh, hlen + 8);
-                       ND_PRINT((ndo, " %s Keygen Token=%08x:%08x",
+               if (ndo->ndo_vflag) {
+                       ND_TCHECK_4(bp + hlen + 4);
+                       ND_PRINT(" %s Keygen Token=%08x:%08x",

                               type == IP6M_HOME_TEST ? "Home" : "Care-of",
                               type == IP6M_HOME_TEST ? "Home" : "Care-of",

-                              EXTRACT_32BITS(&bp[hlen]),
-                              EXTRACT_32BITS(&bp[hlen + 4])));
+                              EXTRACT_BE_U_4(bp + hlen),
+                              EXTRACT_BE_U_4(bp + hlen + 4));

                }
                hlen += 8;
                break;
        case IP6M_BINDING_UPDATE:
                }
                hlen += 8;
                break;
        case IP6M_BINDING_UPDATE:

-               ND_TCHECK(mh->ip6m_data16[0]);
-               ND_PRINT((ndo, " seq#=%u", EXTRACT_16BITS(&mh->ip6m_data16[0])));
+               ND_TCHECK_2(mh->ip6m_data16[0]);
+               ND_PRINT(" seq#=%u", EXTRACT_BE_U_2(mh->ip6m_data16[0]));

                hlen = IP6M_MINLEN;
                hlen = IP6M_MINLEN;

-               ND_TCHECK2(*mh, hlen + 1);
-               if (bp[hlen] & 0xf0)
-                       ND_PRINT((ndo, " "));
-               if (bp[hlen] & 0x80)
-                       ND_PRINT((ndo, "A"));
-               if (bp[hlen] & 0x40)
-                       ND_PRINT((ndo, "H"));
-               if (bp[hlen] & 0x20)
-                       ND_PRINT((ndo, "L"));
-               if (bp[hlen] & 0x10)
-                       ND_PRINT((ndo, "K"));
+               ND_TCHECK_2(bp + hlen);
+               if (EXTRACT_U_1(bp + hlen) & 0xf0) {
+                       ND_PRINT(" ");
+                       if (EXTRACT_U_1(bp + hlen) & 0x80)
+                               ND_PRINT("A");
+                       if (EXTRACT_U_1(bp + hlen) & 0x40)
+                               ND_PRINT("H");
+                       if (EXTRACT_U_1(bp + hlen) & 0x20)
+                               ND_PRINT("L");
+                       if (EXTRACT_U_1(bp + hlen) & 0x10)
+                               ND_PRINT("K");
+               }

                /* Reserved (4bits) */
                hlen += 1;
                /* Reserved (8bits) */
                hlen += 1;
                /* Reserved (4bits) */
                hlen += 1;
                /* Reserved (8bits) */
                hlen += 1;

-               ND_TCHECK2(*mh, hlen + 2);
+               ND_TCHECK_2(bp + hlen);

                /* units of 4 secs */
                /* units of 4 secs */

-               ND_PRINT((ndo, " lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2));
+               ND_PRINT(" lifetime=%u", EXTRACT_BE_U_2(bp + hlen) << 2);

                hlen += 2;
                break;
        case IP6M_BINDING_ACK:
                hlen += 2;
                break;
        case IP6M_BINDING_ACK:

-               ND_TCHECK(mh->ip6m_data8[0]);
-               ND_PRINT((ndo, " status=%u", mh->ip6m_data8[0]));
-               if (mh->ip6m_data8[1] & 0x80)
-                       ND_PRINT((ndo, " K"));
+               ND_TCHECK_1(mh->ip6m_data8[0]);
+               ND_PRINT(" status=%u", EXTRACT_U_1(mh->ip6m_data8[0]));
+               ND_TCHECK_1(mh->ip6m_data8[1]);
+               if (EXTRACT_U_1(mh->ip6m_data8[1]) & 0x80)
+                       ND_PRINT(" K");

                /* Reserved (7bits) */
                hlen = IP6M_MINLEN;
                /* Reserved (7bits) */
                hlen = IP6M_MINLEN;

-               ND_TCHECK2(*mh, hlen + 2);
-               ND_PRINT((ndo, " seq#=%u", EXTRACT_16BITS(&bp[hlen])));
+               ND_TCHECK_2(bp + hlen);
+               ND_PRINT(" seq#=%u", EXTRACT_BE_U_2(bp + hlen));

                hlen += 2;
                hlen += 2;

-               ND_TCHECK2(*mh, hlen + 2);
+               ND_TCHECK_2(bp + hlen);

                /* units of 4 secs */
                /* units of 4 secs */

-               ND_PRINT((ndo, " lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2));
+               ND_PRINT(" lifetime=%u", EXTRACT_BE_U_2(bp + hlen) << 2);

                hlen += 2;
                break;
        case IP6M_BINDING_ERROR:
                hlen += 2;
                break;
        case IP6M_BINDING_ERROR:

-               ND_TCHECK(mh->ip6m_data8[0]);
-               ND_PRINT((ndo, " status=%u", mh->ip6m_data8[0]));
+               ND_TCHECK_1(mh->ip6m_data8[0]);
+               ND_PRINT(" status=%u", EXTRACT_U_1(mh->ip6m_data8[0]));

                /* Reserved */
                hlen = IP6M_MINLEN;
                /* Reserved */
                hlen = IP6M_MINLEN;

-               ND_TCHECK2(*mh, hlen + 16);
-               ND_PRINT((ndo, " homeaddr %s", ip6addr_string(ndo, &bp[hlen])));
+               ND_TCHECK_16(bp + hlen);
+               ND_PRINT(" homeaddr %s", ip6addr_string(ndo, bp + hlen));

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

-               ND_PRINT((ndo, " len=%u", mh->ip6m_len));
+               ND_PRINT(" len=%u", EXTRACT_U_1(mh->ip6m_len));

                return(mhlen);
                break;
        }
                return(mhlen);
                break;
        }

-       if (ndo->ndo_vflag)
-               mobility_opt_print(ndo, &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:

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

 }
 }

-#endif /* INET6 */