* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#define NETDISSECT_REWORKED
+/* \summary: IPv6 fragmentation header printer */
+
#ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
#endif
-#ifdef INET6
+#include "netdissect-stdinc.h"
-#include <tcpdump-stdinc.h>
+#include "netdissect.h"
+#include "extract.h"
#include "ip6.h"
-#include "interface.h"
-#include "extract.h"
int
-frag6_print(netdissect_options *ndo, register const u_char *bp, register const u_char *bp2)
+frag6_print(netdissect_options *ndo, const u_char *bp, const u_char *bp2)
{
- register const struct ip6_frag *dp;
- register const struct ip6_hdr *ip6;
+ const struct ip6_frag *dp;
+ const struct ip6_hdr *ip6;
+ ndo->ndo_protocol = "frag6";
dp = (const struct ip6_frag *)bp;
ip6 = (const struct ip6_hdr *)bp2;
- ND_TCHECK(dp->ip6f_offlg);
-
if (ndo->ndo_vflag) {
- ND_PRINT((ndo, "frag (0x%08x:%d|%ld)",
- EXTRACT_32BITS(&dp->ip6f_ident),
- EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK,
- sizeof(struct ip6_hdr) + EXTRACT_16BITS(&ip6->ip6_plen) -
- (long)(bp - bp2) - sizeof(struct ip6_frag)));
+ ND_PRINT("frag (0x%08x:%u|%zu)",
+ GET_BE_U_4(dp->ip6f_ident),
+ GET_BE_U_2(dp->ip6f_offlg) & IP6F_OFF_MASK,
+ sizeof(struct ip6_hdr) + GET_BE_U_2(ip6->ip6_plen) -
+ (bp - bp2) - sizeof(struct ip6_frag));
} else {
- ND_PRINT((ndo, "frag (%d|%ld)",
- EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK,
- sizeof(struct ip6_hdr) + EXTRACT_16BITS(&ip6->ip6_plen) -
- (long)(bp - bp2) - sizeof(struct ip6_frag)));
+ ND_PRINT("frag (%u|%zu)",
+ GET_BE_U_2(dp->ip6f_offlg) & IP6F_OFF_MASK,
+ sizeof(struct ip6_hdr) + GET_BE_U_2(ip6->ip6_plen) -
+ (bp - bp2) - sizeof(struct ip6_frag));
}
/* it is meaningless to decode non-first fragment */
- if ((EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK) != 0)
+ if ((GET_BE_U_2(dp->ip6f_offlg) & IP6F_OFF_MASK) != 0)
return -1;
else
{
- ND_PRINT((ndo, " "));
+ ND_PRINT(" ");
return sizeof(struct ip6_frag);
}
-trunc:
- ND_PRINT((ndo, "[|frag]"));
- return -1;
}
-#endif /* INET6 */