ipfilter/netinet/ip_frag.c

379 	ipfr_t *fra, frag, *fran;
454 	for (fra = table[idx]; (fra != NULL); fra = fra->ipfr_hnext)
455 		if (!bcmp((char *)&frag.ipfr_ifp, (char *)&fra->ipfr_ifp,
459 			KFREE(fra);
463 	fra = fran;
466 	fra->ipfr_rule = fr;
478 	if ((fra->ipfr_hnext = table[idx]) != NULL)
479 		table[idx]->ipfr_hprev = &fra->ipfr_hnext;
480 	fra->ipfr_hprev = table + idx;
481 	fra->ipfr_data = NULL;
482 	table[idx] = fra;
483 	bcopy((char *)&frag.ipfr_ifp, (char *)&fra->ipfr_ifp, IPFR_CMPSZ);
484 	fra->ipfr_v = fin->fin_v;
485 	fra->ipfr_ttl = softc->ipf_ticks + softf->ipfr_ttl;
486 	fra->ipfr_firstend = frag.ipfr_firstend;
492 		fra->ipfr_seen0 = 1;
493 	fra->ipfr_off = off + (fin->fin_dlen >> 3);
494 	fra->ipfr_pass = pass;
495 	fra->ipfr_ref = 1;
496 	fra->ipfr_pkts = 1;
497 	fra->ipfr_bytes = fin->fin_plen;
500 	return fra;
518 	ipfr_t	*fra;
524 	fra = ipfr_frag_new(softc, softf, fin, pass, softf->ipfr_heads, &softc->ipf_frag);
526 	fra = ipfr_frag_new(softc, softf, fin, pass, softf->ipfr_heads);
528 	if (fra != NULL) {
529 		*softf->ipfr_tail = fra;
530 		fra->ipfr_prev = softf->ipfr_tail;
531 		softf->ipfr_tail = &fra->ipfr_next;
532 		fra->ipfr_next = NULL;
535 	return fra ? 0 : -1;
556 	ipfr_t	*fra;
562 	fra = ipfr_frag_new(softc, softf, fin, pass, softf->ipfr_nattab,
565 	fra = ipfr_frag_new(softc, softf, fin, pass, softf->ipfr_nattab);
567 	if (fra != NULL) {
568 		fra->ipfr_data = nat;
569 		nat->nat_data = fra;
570 		*softf->ipfr_nattail = fra;
571 		fra->ipfr_prev = softf->ipfr_nattail;
572 		softf->ipfr_nattail = &fra->ipfr_next;
573 		fra->ipfr_next = NULL;
597 	ipfr_t	*fra;
603 	fra = ipfr_frag_new(softc, softf, fin, 0, softf->ipfr_ipidtab, &softf->ipfr_ipidfrag);
605 	fra = ipfr_frag_new(softc, softf, fin, 0, softf->ipfr_ipidtab);
607 	if (fra != NULL) {
608 		fra->ipfr_data = (void *)(intptr_t)ipid;
609 		*softf->ipfr_ipidtail = fra;
610 		fra->ipfr_prev = softf->ipfr_ipidtail;
611 		softf->ipfr_ipidtail = &fra->ipfr_next;
612 		fra->ipfr_next = NULL;
615 	return fra ? 0 : -1;
888 	ipfr_t	*fra;
895 	fra = ipf_frag_lookup(softc, softf, fin, softf->ipfr_heads,
898 	fra = ipf_frag_lookup(softc, softf, fin, softf->ipfr_heads);
900 	if (fra != NULL) {
905 			fr = fra->ipfr_rule;
959 /*              fra(I)   - pointer to fragment structure to delete          */
968 ipf_frag_delete(softc, fra, tail)
970 	ipfr_t *fra, ***tail;
974 	if (fra->ipfr_next)
975 		fra->ipfr_next->ipfr_prev = fra->ipfr_prev;
976 	*fra->ipfr_prev = fra->ipfr_next;
977 	if (*tail == &fra->ipfr_next)
978 		*tail = fra->ipfr_prev;
980 	if (fra->ipfr_hnext)
981 		fra->ipfr_hnext->ipfr_hprev = fra->ipfr_hprev;
982 	*fra->ipfr_hprev = fra->ipfr_hnext;
984 	if (fra->ipfr_rule != NULL) {
985 		(void) ipf_derefrule(softc, &fra->ipfr_rule);
988 	if (fra->ipfr_ref <= 0)
989 		ipf_frag_free(softf, fra);
997 /*              fra(I)   - pointer to fragment structure to free            */
1002 ipf_frag_free(softf, fra)
1004 	ipfr_t *fra;
1006 	KFREE(fra);
1025 	ipfr_t	*fra;
1029 	while ((fra = softf->ipfr_list) != NULL) {
1030 		fra->ipfr_ref--;
1031 		ipf_frag_delete(softc, fra, &softf->ipfr_tail);
1038 	while ((fra = softf->ipfr_natlist) != NULL) {
1039 		nat = fra->ipfr_data;
1041 			if (nat->nat_data == fra)
1044 		fra->ipfr_ref--;
1045 		ipf_frag_delete(softc, fra, &softf->ipfr_nattail);
1065 	ipfr_t	**fp, *fra;
1078 	for (fp = &softf->ipfr_list; ((fra = *fp) != NULL); ) {
1079 		if (fra->ipfr_ttl > softc->ipf_ticks)
1081 		fra->ipfr_ref--;
1082 		ipf_frag_delete(softc, fra, &softf->ipfr_tail);
1087 	for (fp = &softf->ipfr_ipidlist; ((fra = *fp) != NULL); ) {
1088 		if (fra->ipfr_ttl > softc->ipf_ticks)
1090 		fra->ipfr_ref--;
1091 		ipf_frag_delete(softc, fra, &softf->ipfr_ipidtail);
1108 		for (fp = &softf->ipfr_natlist; ((fra = *fp) != NULL); ) {
1109 			if (fra->ipfr_ttl > softc->ipf_ticks)
1111 			nat = fra->ipfr_data;
1113 				if (nat->nat_data == fra)
1116 			fra->ipfr_ref--;
1117 			ipf_frag_delete(softc, fra, &softf->ipfr_nattail);
1335 	ipfr_t *fra;
1337 	fra = *frp;
1341 	fra->ipfr_ref--;
1342 	if (fra->ipfr_ref <= 0)
1343 		ipf_frag_free(softf, fra);