* POSSIBILITY OF SUCH DAMAGE.
*/
-#define NETDISSECT_REWORKED
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/* \summary: IPv4 mobility printer */
-#include <tcpdump-stdinc.h>
+#include <config.h>
-#include "interface.h"
+#include "netdissect-stdinc.h"
+
+#define ND_LONGJMP_FROM_TCHECK
+#include "netdissect.h"
#include "addrtoname.h"
-#include "extract.h" /* must come after interface.h */
+#include "extract.h"
#define MOBILE_SIZE (8)
struct mobile_ip {
- uint16_t proto;
- uint16_t hcheck;
- uint32_t odst;
- uint32_t osrc;
+ nd_uint16_t proto;
+ nd_uint16_t hcheck;
+ nd_uint32_t odst;
+ nd_uint32_t osrc;
};
#define OSRC_PRES 0x0080 /* old source is present */
u_short proto,crc;
u_char osp =0; /* old source address present */
+ ndo->ndo_protocol = "mobile";
mob = (const struct mobile_ip *)bp;
- if (length < MOBILE_SIZE || !ND_TTEST(*mob)) {
- ND_PRINT((ndo, "[|mobile]"));
- return;
- }
- ND_PRINT((ndo, "mobile: "));
+ nd_print_protocol(ndo);
+ ND_PRINT(": ");
+ ND_ICHECK_U(length, <, MOBILE_SIZE);
+ ND_TCHECK_SIZE(mob);
- proto = EXTRACT_16BITS(&mob->proto);
- crc = EXTRACT_16BITS(&mob->hcheck);
+ proto = GET_BE_U_2(mob->proto);
+ crc = GET_BE_U_2(mob->hcheck);
if (proto & OSRC_PRES) {
osp=1;
}
if (osp) {
- ND_PRINT((ndo, "[S] "));
+ ND_PRINT("[S] ");
if (ndo->ndo_vflag)
- ND_PRINT((ndo, "%s ", ipaddr_string(ndo, &mob->osrc)));
+ ND_PRINT("%s ", GET_IPADDR_STRING(mob->osrc));
} else {
- ND_PRINT((ndo, "[] "));
+ ND_PRINT("[] ");
}
if (ndo->ndo_vflag) {
- ND_PRINT((ndo, "> %s ", ipaddr_string(ndo, &mob->odst)));
- ND_PRINT((ndo, "(oproto=%d)", proto>>8));
+ ND_PRINT("> %s ", GET_IPADDR_STRING(mob->odst));
+ ND_PRINT("(oproto=%u)", proto>>8);
}
- vec[0].ptr = (const uint8_t *)(void *)mob;
+ vec[0].ptr = (const uint8_t *)(const void *)mob;
vec[0].len = osp ? 12 : 8;
if (in_cksum(vec, 1)!=0) {
- ND_PRINT((ndo, " (bad checksum %d)", crc));
+ ND_PRINT(" (bad checksum %u)", crc);
}
+ return;
+invalid:
+ nd_print_invalid(ndo);
}