change make check to work with POSIX shell

[tcpdump] / print-mobility.c

diff --git a/print-mobility.c b/print-mobility.c
index 37410373b0012696ed8d4b970bc0ee5460e3e925..feb4c98fea36def9b941e53567704f9e68cd6ec4 100644 (file)
--- a/print-mobility.c
+++ b/print-mobility.c
@@ -27,18 +27,23 @@
  * SUCH DAMAGE.
  */
 
+/* \summary: IPv6 mobility printer */
+/* RFC 3775 */
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#ifdef INET6
 #include <netdissect-stdinc.h>
 
-#include "ip6.h"
 #include "netdissect.h"
 #include "addrtoname.h"
 #include "extract.h"
 
+#include "ip6.h"
+
+static const char tstr[] = "[|MOBILITY]";
+
 /* Mobility header */
 struct ip6_mobility {
        uint8_t ip6m_pproto;    /* following payload protocol (for PG) */
@@ -106,7 +111,7 @@ static const unsigned ip6m_hdrlen[IP6M_MAX + 1] = {
 #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)
 {
@@ -145,6 +150,7 @@ mobility_opt_print(netdissect_options *ndo,
                                goto trunc;
                        }
                        /* units of 4 secs */
+                       ND_TCHECK_16BITS(&bp[i+2]);
                        ND_PRINT((ndo, "(refresh: %u)",
                                EXTRACT_16BITS(&bp[i+2]) << 2));
                        break;
@@ -153,6 +159,7 @@ mobility_opt_print(netdissect_options *ndo,
                                ND_PRINT((ndo, "(altcoa: trunc)"));
                                goto trunc;
                        }
+                       ND_TCHECK_128BITS(&bp[i+2]);
                        ND_PRINT((ndo, "(alt-CoA: %s)", ip6addr_string(ndo, &bp[i+2])));
                        break;
                case IP6MOPT_NONCEID:
@@ -160,6 +167,8 @@ mobility_opt_print(netdissect_options *ndo,
                                ND_PRINT((ndo, "(ni: trunc)"));
                                goto trunc;
                        }
+                       ND_TCHECK_16BITS(&bp[i+2]);
+                       ND_TCHECK_16BITS(&bp[i+4]);
                        ND_PRINT((ndo, "(ni: ho=0x%04x co=0x%04x)",
                                EXTRACT_16BITS(&bp[i+2]),
                                EXTRACT_16BITS(&bp[i+4])));
@@ -180,10 +189,10 @@ mobility_opt_print(netdissect_options *ndo,
                        break;
                }
        }
-       return;
+       return 0;
 
 trunc:
-       ND_PRINT((ndo, "[trunc] "));
+       return 1;
 }
 
 /*
@@ -237,8 +246,8 @@ mobility_print(netdissect_options *ndo,
        case IP6M_HOME_TEST_INIT:
        case IP6M_CAREOF_TEST_INIT:
                hlen = IP6M_MINLEN;
-               if (ndo->ndo_vflag) {
-                       ND_TCHECK2(*mh, hlen + 8);
+               if (ndo->ndo_vflag) {
+                       ND_TCHECK_32BITS(&bp[hlen + 4]);
                        ND_PRINT((ndo, " %s Init Cookie=%08x:%08x",
                               type == IP6M_HOME_TEST_INIT ? "Home" : "Care-of",
                               EXTRACT_32BITS(&bp[hlen]),
@@ -251,16 +260,16 @@ mobility_print(netdissect_options *ndo,
                ND_TCHECK(mh->ip6m_data16[0]);
                ND_PRINT((ndo, " nonce id=0x%x", EXTRACT_16BITS(&mh->ip6m_data16[0])));
                hlen = IP6M_MINLEN;
-               if (ndo->ndo_vflag) {
-                       ND_TCHECK2(*mh, hlen + 8);
+               if (ndo->ndo_vflag) {
+                       ND_TCHECK_32BITS(&bp[hlen + 4]);
                        ND_PRINT((ndo, " %s Init Cookie=%08x:%08x",
                               type == IP6M_HOME_TEST ? "Home" : "Care-of",
                               EXTRACT_32BITS(&bp[hlen]),
                               EXTRACT_32BITS(&bp[hlen + 4])));
                }
                hlen += 8;
-               if (ndo->ndo_vflag) {
-                       ND_TCHECK2(*mh, hlen + 8);
+               if (ndo->ndo_vflag) {
+                       ND_TCHECK_32BITS(&bp[hlen + 4]);
                        ND_PRINT((ndo, " %s Keygen Token=%08x:%08x",
                               type == IP6M_HOME_TEST ? "Home" : "Care-of",
                               EXTRACT_32BITS(&bp[hlen]),
@@ -272,22 +281,23 @@ mobility_print(netdissect_options *ndo,
                ND_TCHECK(mh->ip6m_data16[0]);
                ND_PRINT((ndo, " seq#=%u", EXTRACT_16BITS(&mh->ip6m_data16[0])));
                hlen = IP6M_MINLEN;
-               ND_TCHECK2(*mh, hlen + 1);
-               if (bp[hlen] & 0xf0)
+               ND_TCHECK_16BITS(&bp[hlen]);
+               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"));
+                       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"));
+               }
                /* Reserved (4bits) */
                hlen += 1;
                /* Reserved (8bits) */
                hlen += 1;
-               ND_TCHECK2(*mh, hlen + 2);
+               ND_TCHECK_16BITS(&bp[hlen]);
                /* units of 4 secs */
                ND_PRINT((ndo, " lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2));
                hlen += 2;
@@ -295,14 +305,15 @@ mobility_print(netdissect_options *ndo,
        case IP6M_BINDING_ACK:
                ND_TCHECK(mh->ip6m_data8[0]);
                ND_PRINT((ndo, " status=%u", mh->ip6m_data8[0]));
+               ND_TCHECK(mh->ip6m_data8[1]);
                if (mh->ip6m_data8[1] & 0x80)
                        ND_PRINT((ndo, " K"));
                /* Reserved (7bits) */
                hlen = IP6M_MINLEN;
-               ND_TCHECK2(*mh, hlen + 2);
+               ND_TCHECK_16BITS(&bp[hlen]);
                ND_PRINT((ndo, " seq#=%u", EXTRACT_16BITS(&bp[hlen])));
                hlen += 2;
-               ND_TCHECK2(*mh, hlen + 2);
+               ND_TCHECK_16BITS(&bp[hlen]);
                /* units of 4 secs */
                ND_PRINT((ndo, " lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2));
                hlen += 2;
@@ -312,7 +323,7 @@ mobility_print(netdissect_options *ndo,
                ND_PRINT((ndo, " status=%u", mh->ip6m_data8[0]));
                /* Reserved */
                hlen = IP6M_MINLEN;
-               ND_TCHECK2(*mh, hlen + 16);
+               ND_TCHECK2(bp[hlen], 16);
                ND_PRINT((ndo, " homeaddr %s", ip6addr_string(ndo, &bp[hlen])));
                hlen += 16;
                break;
@@ -321,13 +332,13 @@ mobility_print(netdissect_options *ndo,
                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:
-       ND_PRINT((ndo, "[|MOBILITY]"));
-       return(mhlen);
+       ND_PRINT((ndo, "%s", tstr));
+       return(-1);
 }
-#endif /* INET6 */