}
}
+static bool skip_ids_match(uint32_t min, uint32_t max, bool inv)
+{
+ return min == 0 && max == UINT32_MAX && !inv;
+}
+
static void
print_ids(const char *name, uint32_t min, uint32_t max,
int invert)
{
const char *inv = invert ? "!" : "";
- if (min != 0 || max != 0xFFFFFFFF || invert) {
+ if (!skip_ids_match(min, max, invert)) {
printf("%s", name);
if (min == max)
printf(":%s%u", inv, min);
static void frag_save(const void *ip, const struct xt_entry_match *match)
{
const struct ip6t_frag *fraginfo = (struct ip6t_frag *)match->data;
+ bool inv_ids = fraginfo->invflags & IP6T_FRAG_INV_IDS;
- if (!(fraginfo->ids[0] == 0
- && fraginfo->ids[1] == 0xFFFFFFFF)) {
- printf("%s --fragid ",
- (fraginfo->invflags & IP6T_FRAG_INV_IDS) ? " !" : "");
+ if (!skip_ids_match(fraginfo->ids[0], fraginfo->ids[1], inv_ids)) {
+ printf("%s --fragid ", inv_ids ? " !" : "");
if (fraginfo->ids[0]
!= fraginfo->ids[1])
printf("%u:%u",
printf(" --fraglast");
}
+#define XLATE_FLAGS (IP6T_FRAG_RES | IP6T_FRAG_FST | \
+ IP6T_FRAG_MF | IP6T_FRAG_NMF)
+
static int frag_xlate(struct xt_xlate *xl,
const struct xt_xlate_mt_params *params)
{
const struct ip6t_frag *fraginfo =
(struct ip6t_frag *)params->match->data;
+ bool inv_ids = fraginfo->invflags & IP6T_FRAG_INV_IDS;
- if (!(fraginfo->ids[0] == 0 && fraginfo->ids[1] == 0xFFFFFFFF)) {
- xt_xlate_add(xl, "frag id %s",
- (fraginfo->invflags & IP6T_FRAG_INV_IDS) ?
- "!= " : "");
+ if (!skip_ids_match(fraginfo->ids[0], fraginfo->ids[1], inv_ids)) {
+ xt_xlate_add(xl, "frag id %s", inv_ids ? "!= " : "");
if (fraginfo->ids[0] != fraginfo->ids[1])
xt_xlate_add(xl, "%u-%u", fraginfo->ids[0],
fraginfo->ids[1]);
else
xt_xlate_add(xl, "%u", fraginfo->ids[0]);
+ } else if (!(fraginfo->flags & XLATE_FLAGS)) {
+ xt_xlate_add(xl, "exthdr frag exists");
+ return 1;
}
/* ignore ineffective IP6T_FRAG_LEN bit */