1 /* 2 * Copyright (C) 2002 by Darren Reed. 3 * 4 * See the IPFILTER.LICENCE file for details on licencing. 5 * 6 * $Id: load_hash.c,v 1.10 2003/04/26 04:55:11 darrenr Exp $ 7 */ 8 9 #include <fcntl.h> 10 #include <sys/ioctl.h> 11 #include "ipf.h" 12 #if SOLARIS2 >= 10 13 #include "ip_lookup.h" 14 #include "ip_htable.h" 15 #else 16 #include "netinet/ip_lookup.h" 17 #include "netinet/ip_htable.h" 18 #endif 19 20 static int hashfd = -1; 21 22 23 int load_hash(iphp, list, iocfunc) 24 iphtable_t *iphp; 25 iphtent_t *list; 26 ioctlfunc_t iocfunc; 27 { 28 iplookupop_t op; 29 iphtable_t iph; 30 iphtent_t *a; 31 size_t size; 32 int n; 33 34 if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0)) 35 hashfd = open(IPLOOKUP_NAME, O_RDWR); 36 if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0)) 37 return -1; 38 if (list == NULL) 39 return 0; 40 41 for (n = 0, a = list; a != NULL; a = a->ipe_next) 42 n++; 43 44 op.iplo_arg = 0; 45 op.iplo_type = IPLT_HASH; 46 op.iplo_unit = iphp->iph_unit; 47 strncpy(op.iplo_name, iphp->iph_name, sizeof(op.iplo_name)); 48 if (*op.iplo_name == '\0') 49 op.iplo_arg = IPHASH_ANON; 50 op.iplo_size = sizeof(iph); 51 op.iplo_struct = &iph; 52 iph.iph_unit = iphp->iph_unit; 53 iph.iph_type = iphp->iph_type; 54 strncpy(iph.iph_name, iphp->iph_name, sizeof(iph.iph_name)); 55 iph.iph_flags = iphp->iph_flags; 56 if (iphp->iph_size == 0) 57 size = n * 2 - 1; 58 else 59 size = iphp->iph_size; 60 iph.iph_size = size; 61 iph.iph_seed = iphp->iph_seed; 62 iph.iph_table = NULL; 63 iph.iph_ref = 0; 64 65 if ((*iocfunc)(hashfd, SIOCLOOKUPADDTABLE, &op)) 66 if ((opts & OPT_DONOTHING) == 0) { 67 perror("load_hash:SIOCLOOKUPADDTABLE"); 68 return -1; 69 } 70 71 strncpy(op.iplo_name, iph.iph_name, sizeof(op.iplo_name)); 72 strncpy(iphp->iph_name, iph.iph_name, sizeof(op.iplo_name)); 73 74 if (opts & OPT_VERBOSE) { 75 for (a = list; a != NULL; a = a->ipe_next) { 76 a->ipe_addr.in4_addr = ntohl(a->ipe_addr.in4_addr); 77 a->ipe_mask.in4_addr = ntohl(a->ipe_mask.in4_addr); 78 } 79 iph.iph_table = calloc(size, sizeof(*iph.iph_table)); 80 if (iph.iph_table == NULL) { 81 perror("calloc(size, sizeof(*iph.iph_table))"); 82 return -1; 83 } 84 iph.iph_table[0] = list; 85 printhash(&iph, bcopywrap, opts); 86 free(iph.iph_table); 87 88 for (a = list; a != NULL; a = a->ipe_next) { 89 a->ipe_addr.in4_addr = htonl(a->ipe_addr.in4_addr); 90 a->ipe_mask.in4_addr = htonl(a->ipe_mask.in4_addr); 91 } 92 } 93 94 if (opts & OPT_DEBUG) 95 printf("Hash %s:\n", iph.iph_name); 96 97 for (a = list; a != NULL; a = a->ipe_next) 98 load_hashnode(iphp->iph_unit, iph.iph_name, a, iocfunc); 99 100 return 0; 101 } 102