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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 b6fa61e9dc747463a10cd1c5a7f75f84f171320f..2f905f1ba9e9da899ec0374bc1ddf9987cd4ee1a 100644 (file)
--- a/print-mobility.c
+++ b/print-mobility.c
@@ -27,29 +27,30 @@
  * SUCH DAMAGE.
  */
 
  * SUCH DAMAGE.
  */
 
-#define NETDISSECT_REWORKED
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/* \summary: IPv6 mobility printer */
+/* RFC 3775 */
 
 
-#ifdef INET6
-#include <tcpdump-stdinc.h>
+#include <config.h>
 
 
-#include "ip6.h"
-#include "interface.h"
+#include "netdissect-stdinc.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;
 };
 
@@ -58,7 +59,7 @@ struct ip6_mobility {
 
 #define IP6M_MINLEN    8
 
 
 #define IP6M_MINLEN    8
 
-/* http://www.iana.org/assignments/mobility-parameters/mobility-parameters.xhtml */
+/* https://www.iana.org/assignments/mobility-parameters/mobility-parameters.xhtml */
 
 /* message type */
 #define IP6M_BINDING_REQUEST   0       /* Binding Refresh Request */
 
 /* message type */
 #define IP6M_BINDING_REQUEST   0       /* Binding Refresh Request */
@@ -71,6 +72,18 @@ struct ip6_mobility {
 #define IP6M_BINDING_ERROR     7       /* Binding Error */
 #define IP6M_MAX               7
 
 #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   */
 static const unsigned ip6m_hdrlen[IP6M_MAX + 1] = {
        IP6M_MINLEN,      /* IP6M_BINDING_REQUEST  */
        IP6M_MINLEN + 8,  /* IP6M_HOME_TEST_INIT   */
@@ -82,11 +95,6 @@ static const unsigned ip6m_hdrlen[IP6M_MAX + 1] = {
        IP6M_MINLEN + 16, /* IP6M_BINDING_ERROR    */
 };
 
        IP6M_MINLEN + 16, /* IP6M_BINDING_ERROR    */
 };
 
-/* XXX: unused */
-#define IP6MOPT_BU_MINLEN      10
-#define IP6MOPT_BA_MINLEN      13
-#define IP6MOPT_BR_MINLEN      2
-
 /* Mobility Header Options */
 #define IP6MOPT_MINLEN         2
 #define IP6MOPT_PAD1          0x0      /* Pad1 */
 /* Mobility Header Options */
 #define IP6MOPT_MINLEN         2
 #define IP6MOPT_PAD1          0x0      /* Pad1 */
@@ -100,84 +108,91 @@ 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 const struct tok ip6m_binding_update_bits [] = {
+       { 0x08, "A" },
+       { 0x04, "H" },
+       { 0x02, "L" },
+       { 0x01, "K" },
+       { 0, NULL }
+};
+
+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)
+               if (GET_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;
-                       }
-                       else
+                               optlen = GET_U_1(bp + i + 1) + 2;
+                       } else
                                goto trunc;
                }
                if (i + optlen > len)
                        goto trunc;
                                goto trunc;
                }
                if (i + optlen > len)
                        goto trunc;
-               ND_TCHECK(bp[i + optlen]);
+               ND_TCHECK_1(bp + i + optlen);
 
 
-               switch (bp[i]) {
+               switch (GET_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_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) {
-                               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_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) {
-                               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_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) {
-                               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)",
+                                        GET_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)", GET_U_1(bp + i),
+                                GET_U_1(bp + i + 1));
                        break;
                }
        }
                        break;
                }
        }
-       return;
+       return 0;
 
 trunc:
 
 trunc:
-       ND_PRINT((ndo, "[trunc] "));
+       return 1;
 }
 
 /*
 }
 
 /*
@@ -192,12 +207,13 @@ 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.
@@ -210,125 +226,105 @@ mobility_print(netdissect_options *ndo,
                 * returned length, however, as it breaks out of the
                 * header-processing loop.
                 */
                 * returned length, however, as it breaks out of the
                 * header-processing loop.
                 */
-               mhlen = ep - bp;
+               mhlen = (unsigned)(ep - bp);
                goto trunc;
        }
                goto trunc;
        }
-       mhlen = (mh->ip6m_len + 1) << 3;
+       mhlen = (GET_U_1(mh->ip6m_len) + 1) << 3;
 
        /* XXX ip6m_cksum */
 
 
        /* XXX ip6m_cksum */
 
-       ND_TCHECK(mh->ip6m_type);
-       type = mh->ip6m_type;
+       type = GET_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("mobility: %s", tok2str(ip6m_str, "type-#%u", type));
        switch (type) {
        case IP6M_BINDING_REQUEST:
        switch (type) {
        case IP6M_BINDING_REQUEST:
-               ND_PRINT((ndo, "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:
-               ND_PRINT((ndo, "mobility: %soTI",
-                       type == IP6M_HOME_TEST_INIT ? "H" : "C"));
                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_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])));
+                              GET_BE_U_4(bp + hlen),
+                              GET_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_PRINT((ndo, "mobility: %soT",
-                       type == IP6M_HOME_TEST ? "H" : "C"));
-               ND_TCHECK(mh->ip6m_data16[0]);
-               ND_PRINT((ndo, " nonce id=0x%x", EXTRACT_16BITS(&mh->ip6m_data16[0])));
+               ND_PRINT(" nonce id=0x%x", GET_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_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])));
+                              GET_BE_U_4(bp + hlen),
+                              GET_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_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])));
+                              GET_BE_U_4(bp + hlen),
+                              GET_BE_U_4(bp + hlen + 4));
                }
                hlen += 8;
                break;
        case IP6M_BINDING_UPDATE:
                }
                hlen += 8;
                break;
        case IP6M_BINDING_UPDATE:
-               ND_PRINT((ndo, "mobility: BU"));
-               ND_TCHECK(mh->ip6m_data16[0]);
-               ND_PRINT((ndo, " seq#=%u", EXTRACT_16BITS(&mh->ip6m_data16[0])));
+           {
+               int bits;
+               ND_PRINT(" seq#=%u", GET_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);
+               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;
                /* Reserved (4bits) */
                hlen += 1;
                /* Reserved (8bits) */
                hlen += 1;
-               ND_TCHECK2(*mh, hlen + 2);
                /* units of 4 secs */
                /* units of 4 secs */
-               ND_PRINT((ndo, " lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2));
+               ND_PRINT(" lifetime=%u", GET_BE_U_2(bp + hlen) << 2);
                hlen += 2;
                break;
                hlen += 2;
                break;
+           }
        case IP6M_BINDING_ACK:
        case IP6M_BINDING_ACK:
-               ND_PRINT((ndo, "mobility: BA"));
-               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_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;
                /* Reserved (7bits) */
                hlen = IP6M_MINLEN;
-               ND_TCHECK2(*mh, hlen + 2);
-               ND_PRINT((ndo, " seq#=%u", EXTRACT_16BITS(&bp[hlen])));
+               ND_PRINT(" seq#=%u", GET_BE_U_2(bp + hlen));
                hlen += 2;
                hlen += 2;
-               ND_TCHECK2(*mh, hlen + 2);
                /* units of 4 secs */
                /* units of 4 secs */
-               ND_PRINT((ndo, " lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2));
+               ND_PRINT(" lifetime=%u", GET_BE_U_2(bp + hlen) << 2);
                hlen += 2;
                break;
        case IP6M_BINDING_ERROR:
                hlen += 2;
                break;
        case IP6M_BINDING_ERROR:
-               ND_PRINT((ndo, "mobility: BE"));
-               ND_TCHECK(mh->ip6m_data8[0]);
-               ND_PRINT((ndo, " status=%u", mh->ip6m_data8[0]));
+               ND_PRINT(" status=%u", GET_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_PRINT(" homeaddr %s", GET_IP6ADDR_STRING(bp + hlen));
                hlen += 16;
                break;
        default:
                hlen += 16;
                break;
        default:
-               ND_PRINT((ndo, "mobility: type-#%u len=%u", type, mh->ip6m_len));
+               ND_PRINT(" len=%u", GET_U_1(mh->ip6m_len));
                return(mhlen);
                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 */
[mirror] the TCPdump network dissector