/* * Copyright (c) 1997-2003 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "krb5_locl.h" RCSID("$Id: addr_families.c,v 1.38 2003/03/25 12:37:02 joda Exp $"); struct addr_operations { int af; krb5_address_type atype; size_t max_sockaddr_size; krb5_error_code (*sockaddr2addr)(const struct sockaddr *, krb5_address *); krb5_error_code (*sockaddr2port)(const struct sockaddr *, int16_t *); void (*addr2sockaddr)(const krb5_address *, struct sockaddr *, krb5_socklen_t *sa_size, int port); void (*h_addr2sockaddr)(const char *, struct sockaddr *, krb5_socklen_t *, int); krb5_error_code (*h_addr2addr)(const char *, krb5_address *); krb5_boolean (*uninteresting)(const struct sockaddr *); void (*anyaddr)(struct sockaddr *, krb5_socklen_t *, int); int (*print_addr)(const krb5_address *, char *, size_t); int (*parse_addr)(krb5_context, const char*, krb5_address *); int (*order_addr)(krb5_context, const krb5_address*, const krb5_address*); int (*free_addr)(krb5_context, krb5_address*); int (*copy_addr)(krb5_context, const krb5_address*, krb5_address*); }; /* * AF_INET - aka IPv4 implementation */ static krb5_error_code ipv4_sockaddr2addr (const struct sockaddr *sa, krb5_address *a) { const struct sockaddr_in *sin = (const struct sockaddr_in *)sa; unsigned char buf[4]; a->addr_type = KRB5_ADDRESS_INET; memcpy (buf, &sin->sin_addr, 4); return krb5_data_copy(&a->address, buf, 4); } static krb5_error_code ipv4_sockaddr2port (const struct sockaddr *sa, int16_t *port) { const struct sockaddr_in *sin = (const struct sockaddr_in *)sa; *port = sin->sin_port; return 0; } static void ipv4_addr2sockaddr (const krb5_address *a, struct sockaddr *sa, krb5_socklen_t *sa_size, int port) { struct sockaddr_in tmp; memset (&tmp, 0, sizeof(tmp)); tmp.sin_family = AF_INET; memcpy (&tmp.sin_addr, a->address.data, 4); tmp.sin_port = port; memcpy(sa, &tmp, min(sizeof(tmp), *sa_size)); *sa_size = sizeof(tmp); } static void ipv4_h_addr2sockaddr(const char *addr, struct sockaddr *sa, krb5_socklen_t *sa_size, int port) { struct sockaddr_in tmp; memset (&tmp, 0, sizeof(tmp)); tmp.sin_family = AF_INET; tmp.sin_port = port; tmp.sin_addr = *((const struct in_addr *)addr); memcpy(sa, &tmp, min(sizeof(tmp), *sa_size)); *sa_size = sizeof(tmp); } static krb5_error_code ipv4_h_addr2addr (const char *addr, krb5_address *a) { unsigned char buf[4]; a->addr_type = KRB5_ADDRESS_INET; memcpy(buf, addr, 4); return krb5_data_copy(&a->address, buf, 4); } /* * Are there any addresses that should be considered `uninteresting'? */ static krb5_boolean ipv4_uninteresting (const struct sockaddr *sa) { const struct sockaddr_in *sin = (const struct sockaddr_in *)sa; if (sin->sin_addr.s_addr == INADDR_ANY) return TRUE; return FALSE; } static void ipv4_anyaddr (struct sockaddr *sa, krb5_socklen_t *sa_size, int port) { struct sockaddr_in tmp; memset (&tmp, 0, sizeof(tmp)); tmp.sin_family = AF_INET; tmp.sin_port = port; tmp.sin_addr.s_addr = INADDR_ANY; memcpy(sa, &tmp, min(sizeof(tmp), *sa_size)); *sa_size = sizeof(tmp); } static int ipv4_print_addr (const krb5_address *addr, char *str, size_t len) { struct in_addr ia; memcpy (&ia, addr->address.data, 4); return snprintf (str, len, "IPv4:%s", inet_ntoa(ia)); } static int ipv4_parse_addr (krb5_context context, const char *address, krb5_address *addr) { const char *p; struct in_addr a; p = strchr(address, ':'); if(p) { p++; if(strncasecmp(address, "ip:", p - address) != 0 && strncasecmp(address, "ip4:", p - address) != 0 && strncasecmp(address, "ipv4:", p - address) != 0 && strncasecmp(address, "inet:", p - address) != 0) return -1; } else p = address; #ifdef HAVE_INET_ATON if(inet_aton(p, &a) == 0) return -1; #elif defined(HAVE_INET_ADDR) a.s_addr = inet_addr(p); if(a.s_addr == INADDR_NONE) return -1; #else return -1; #endif addr->addr_type = KRB5_ADDRESS_INET; if(krb5_data_alloc(&addr->address, 4) != 0) return -1; _krb5_put_int(addr->address.data, ntohl(a.s_addr), addr->address.length); return 0; } /* * AF_INET6 - aka IPv6 implementation */ #ifdef HAVE_IPV6 static krb5_error_code ipv6_sockaddr2addr (const struct sockaddr *sa, krb5_address *a) { const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa; if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { unsigned char buf[4]; a->addr_type = KRB5_ADDRESS_INET; #ifndef IN6_ADDR_V6_TO_V4 #ifdef IN6_EXTRACT_V4ADDR #define IN6_ADDR_V6_TO_V4(x) (&IN6_EXTRACT_V4ADDR(x)) #else #define IN6_ADDR_V6_TO_V4(x) ((const struct in_addr *)&(x)->s6_addr[12]) #endif #endif memcpy (buf, IN6_ADDR_V6_TO_V4(&sin6->sin6_addr), 4); return krb5_data_copy(&a->address, buf, 4); } else { a->addr_type = KRB5_ADDRESS_INET6; return krb5_data_copy(&a->address, &sin6->sin6_addr, sizeof(sin6->sin6_addr)); } } static krb5_error_code ipv6_sockaddr2port (const struct sockaddr *sa, int16_t *port) { const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa; *port = sin6->sin6_port; return 0; } static void ipv6_addr2sockaddr (const krb5_address *a, struct sockaddr *sa, krb5_socklen_t *sa_size, int port) { struct sockaddr_in6 tmp; memset (&tmp, 0, sizeof(tmp)); tmp.sin6_family = AF_INET6; memcpy (&tmp.sin6_addr, a->address.data, sizeof(tmp.sin6_addr)); tmp.sin6_port = port; memcpy(sa, &tmp, min(sizeof(tmp), *sa_size)); *sa_size = sizeof(tmp); } static void ipv6_h_addr2sockaddr(const char *addr, struct sockaddr *sa, krb5_socklen_t *sa_size, int port) { struct sockaddr_in6 tmp; memset (&tmp, 0, sizeof(tmp)); tmp.sin6_family = AF_INET6; tmp.sin6_port = port; tmp.sin6_addr = *((const struct in6_addr *)addr); memcpy(sa, &tmp, min(sizeof(tmp), *sa_size)); *sa_size = sizeof(tmp); } static krb5_error_code ipv6_h_addr2addr (const char *addr, krb5_address *a) { a->addr_type = KRB5_ADDRESS_INET6; return krb5_data_copy(&a->address, addr, sizeof(struct in6_addr)); } /* * */ static krb5_boolean ipv6_uninteresting (const struct sockaddr *sa) { const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa; const struct in6_addr *in6 = (const struct in6_addr *)&sin6->sin6_addr; return IN6_IS_ADDR_LINKLOCAL(in6) || IN6_IS_ADDR_V4COMPAT(in6); } static void ipv6_anyaddr (struct sockaddr *sa, krb5_socklen_t *sa_size, int port) { struct sockaddr_in6 tmp; memset (&tmp, 0, sizeof(tmp)); tmp.sin6_family = AF_INET6; tmp.sin6_port = port; tmp.sin6_addr = in6addr_any; *sa_size = sizeof(tmp); } static int ipv6_print_addr (const krb5_address *addr, char *str, size_t len) { char buf[128], buf2[3]; #ifdef HAVE_INET_NTOP if(inet_ntop(AF_INET6, addr->address.data, buf, sizeof(buf)) == NULL) #endif { /* XXX this is pretty ugly, but better than abort() */ int i; unsigned char *p = addr->address.data; buf[0] = '\0'; for(i = 0; i < addr->address.length; i++) { snprintf(buf2, sizeof(buf2), "%02x", p[i]); if(i > 0 && (i & 1) == 0) strlcat(buf, ":", sizeof(buf)); strlcat(buf, buf2, sizeof(buf)); } } return snprintf(str, len, "IPv6:%s", buf); } static int ipv6_parse_addr (krb5_context context, const char *address, krb5_address *addr) { int ret; struct in6_addr in6; const char *p; p = strchr(address, ':'); if(p) { p++; if(strncasecmp(address, "ip6:", p - address) == 0 || strncasecmp(address, "ipv6:", p - address) == 0 || strncasecmp(address, "inet6:", p - address) == 0) address = p; } ret = inet_pton(AF_INET6, address, &in6.s6_addr); if(ret == 1) { addr->addr_type = KRB5_ADDRESS_INET6; ret = krb5_data_alloc(&addr->address, sizeof(in6.s6_addr)); if (ret) return -1; memcpy(addr->address.data, in6.s6_addr, sizeof(in6.s6_addr)); return 0; } return -1; } #endif /* IPv6 */ /* * table */ #define KRB5_ADDRESS_ARANGE (-100) struct arange { krb5_address low; krb5_address high; }; static int arange_parse_addr (krb5_context context, const char *address, krb5_address *addr) { char buf[1024]; krb5_addresses low, high; struct arange *a; krb5_error_code ret; if(strncasecmp(address, "RANGE:", 6) != 0) return -1; address += 6; /* should handle netmasks */ strsep_copy(&address, "-", buf, sizeof(buf)); ret = krb5_parse_address(context, buf, &low); if(ret) return ret; if(low.len != 1) { krb5_free_addresses(context, &low); return -1; } strsep_copy(&address, "-", buf, sizeof(buf)); ret = krb5_parse_address(context, buf, &high); if(ret) { krb5_free_addresses(context, &low); return ret; } if(high.len != 1 || high.val[0].addr_type != low.val[0].addr_type) { krb5_free_addresses(context, &low); krb5_free_addresses(context, &high); return -1; } krb5_data_alloc(&addr->address, sizeof(*a)); addr->addr_type = KRB5_ADDRESS_ARANGE; a = addr->address.data; if(krb5_address_order(context, &low.val[0], &high.val[0]) < 0) { a->low = low.val[0]; a->high = high.val[0]; } else { a->low = high.val[0]; a->high = low.val[0]; } return 0; } static int arange_free (krb5_context context, krb5_address *addr) { struct arange *a; a = addr->address.data; krb5_free_address(context, &a->low); krb5_free_address(context, &a->high); return 0; } static int arange_copy (krb5_context context, const krb5_address *inaddr, krb5_address *outaddr) { krb5_error_code ret; struct arange *i, *o; outaddr->addr_type = KRB5_ADDRESS_ARANGE; ret = krb5_data_alloc(&outaddr->address, sizeof(*o)); if(ret) return ret; i = inaddr->address.data; o = outaddr->address.data; ret = krb5_copy_address(context, &i->low, &o->low); if(ret) { krb5_data_free(&outaddr->address); return ret; } ret = krb5_copy_address(context, &i->high, &o->high); if(ret) { krb5_free_address(context, &o->low); krb5_data_free(&outaddr->address); return ret; } return 0; } static int arange_print_addr (const krb5_address *addr, char *str, size_t len) { struct arange *a; krb5_error_code ret; size_t l, ret_len = 0; a = addr->address.data; l = strlcpy(str, "RANGE:", len); ret_len += l; ret = krb5_print_address (&a->low, str + ret_len, len - ret_len, &l); ret_len += l; l = strlcat(str, "-", len); ret_len += l; ret = krb5_print_address (&a->high, str + ret_len, len - ret_len, &l); ret_len += l; return ret_len; } static int arange_order_addr(krb5_context context, const krb5_address *addr1, const krb5_address *addr2) { int tmp1, tmp2, sign; struct arange *a; const krb5_address *a2; if(addr1->addr_type == KRB5_ADDRESS_ARANGE) { a = addr1->address.data; a2 = addr2; sign = 1; } else if(addr2->addr_type == KRB5_ADDRESS_ARANGE) { a = addr2->address.data; a2 = addr1; sign = -1; } else abort(); if(a2->addr_type == KRB5_ADDRESS_ARANGE) { struct arange *b = a2->address.data; tmp1 = krb5_address_order(context, &a->low, &b->low); if(tmp1 != 0) return sign * tmp1; return sign * krb5_address_order(context, &a->high, &b->high); } else if(a2->addr_type == a->low.addr_type) { tmp1 = krb5_address_order(context, &a->low, a2); if(tmp1 > 0) return sign; tmp2 = krb5_address_order(context, &a->high, a2); if(tmp2 < 0) return -sign; return 0; } else { return sign * (addr1->addr_type - addr2->addr_type); } } static int addrport_print_addr (const krb5_address *addr, char *str, size_t len) { krb5_address addr1, addr2; uint16_t port = 0; size_t ret_len = 0, l; krb5_storage *sp = krb5_storage_from_data((krb5_data*)&addr->address); /* for totally obscure reasons, these are not in network byteorder */ krb5_storage_set_byteorder(sp, KRB5_STORAGE_BYTEORDER_LE); krb5_storage_seek(sp, 2, SEEK_CUR); /* skip first two bytes */ krb5_ret_address(sp, &addr1); krb5_storage_seek(sp, 2, SEEK_CUR); /* skip two bytes */ krb5_ret_address(sp, &addr2); krb5_storage_free(sp); if(addr2.addr_type == KRB5_ADDRESS_IPPORT && addr2.address.length == 2) { unsigned long value; _krb5_get_int(addr2.address.data, &value, 2); port = value; } l = strlcpy(str, "ADDRPORT:", len); ret_len += l; krb5_print_address(&addr1, str + ret_len, len - ret_len, &l); ret_len += l; l = snprintf(str + ret_len, len - ret_len, ",PORT=%u", port); ret_len += l; return ret_len; } static struct addr_operations at[] = { {AF_INET, KRB5_ADDRESS_INET, sizeof(struct sockaddr_in), ipv4_sockaddr2addr, ipv4_sockaddr2port, ipv4_addr2sockaddr, ipv4_h_addr2sockaddr, ipv4_h_addr2addr, ipv4_uninteresting, ipv4_anyaddr, ipv4_print_addr, ipv4_parse_addr}, #ifdef HAVE_IPV6 {AF_INET6, KRB5_ADDRESS_INET6, sizeof(struct sockaddr_in6), ipv6_sockaddr2addr, ipv6_sockaddr2port, ipv6_addr2sockaddr, ipv6_h_addr2sockaddr, ipv6_h_addr2addr, ipv6_uninteresting, ipv6_anyaddr, ipv6_print_addr, ipv6_parse_addr} , #endif {KRB5_ADDRESS_ADDRPORT, KRB5_ADDRESS_ADDRPORT, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, addrport_print_addr, NULL, NULL, NULL, NULL }, /* fake address type */ {KRB5_ADDRESS_ARANGE, KRB5_ADDRESS_ARANGE, sizeof(struct arange), NULL, NULL, NULL, NULL, NULL, NULL, NULL, arange_print_addr, arange_parse_addr, arange_order_addr, arange_free, arange_copy } }; static int num_addrs = sizeof(at) / sizeof(at[0]); static size_t max_sockaddr_size = 0; /* * generic functions */ static struct addr_operations * find_af(int af) { struct addr_operations *a; for (a = at; a < at + num_addrs; ++a) if (af == a->af) return a; return NULL; } static struct addr_operations * find_atype(int atype) { struct addr_operations *a; for (a = at; a < at + num_addrs; ++a) if (atype == a->atype) return a; return NULL; } krb5_error_code krb5_sockaddr2address (krb5_context context, const struct sockaddr *sa, krb5_address *addr) { struct addr_operations *a = find_af(sa->sa_family); if (a == NULL) { krb5_set_error_string (context, "Address family %d not supported", sa->sa_family); return KRB5_PROG_ATYPE_NOSUPP; } return (*a->sockaddr2addr)(sa, addr); } krb5_error_code krb5_sockaddr2port (krb5_context context, const struct sockaddr *sa, int16_t *port) { struct addr_operations *a = find_af(sa->sa_family); if (a == NULL) { krb5_set_error_string (context, "Address family %d not supported", sa->sa_family); return KRB5_PROG_ATYPE_NOSUPP; } return (*a->sockaddr2port)(sa, port); } krb5_error_code krb5_addr2sockaddr (krb5_context context, const krb5_address *addr, struct sockaddr *sa, krb5_socklen_t *sa_size, int port) { struct addr_operations *a = find_atype(addr->addr_type); if (a == NULL) { krb5_set_error_string (context, "Address type %d not supported", addr->addr_type); return KRB5_PROG_ATYPE_NOSUPP; } if (a->addr2sockaddr == NULL) { krb5_set_error_string (context, "Can't convert address type %d to sockaddr", addr->addr_type); return KRB5_PROG_ATYPE_NOSUPP; } (*a->addr2sockaddr)(addr, sa, sa_size, port); return 0; } size_t krb5_max_sockaddr_size (void) { if (max_sockaddr_size == 0) { struct addr_operations *a; for(a = at; a < at + num_addrs; ++a) max_sockaddr_size = max(max_sockaddr_size, a->max_sockaddr_size); } return max_sockaddr_size; } krb5_boolean krb5_sockaddr_uninteresting(const struct sockaddr *sa) { struct addr_operations *a = find_af(sa->sa_family); if (a == NULL || a->uninteresting == NULL) return TRUE; return (*a->uninteresting)(sa); } krb5_error_code krb5_h_addr2sockaddr (krb5_context context, int af, const char *addr, struct sockaddr *sa, krb5_socklen_t *sa_size, int port) { struct addr_operations *a = find_af(af); if (a == NULL) { krb5_set_error_string (context, "Address family %d not supported", af); return KRB5_PROG_ATYPE_NOSUPP; } (*a->h_addr2sockaddr)(addr, sa, sa_size, port); return 0; } krb5_error_code krb5_h_addr2addr (krb5_context context, int af, const char *haddr, krb5_address *addr) { struct addr_operations *a = find_af(af); if (a == NULL) { krb5_set_error_string (context, "Address family %d not supported", af); return KRB5_PROG_ATYPE_NOSUPP; } return (*a->h_addr2addr)(haddr, addr); } krb5_error_code krb5_anyaddr (krb5_context context, int af, struct sockaddr *sa, krb5_socklen_t *sa_size, int port) { struct addr_operations *a = find_af (af); if (a == NULL) { krb5_set_error_string (context, "Address family %d not supported", af); return KRB5_PROG_ATYPE_NOSUPP; } (*a->anyaddr)(sa, sa_size, port); return 0; } krb5_error_code krb5_print_address (const krb5_address *addr, char *str, size_t len, size_t *ret_len) { size_t ret; struct addr_operations *a = find_atype(addr->addr_type); if (a == NULL || a->print_addr == NULL) { char *s; int l; int i; s = str; l = snprintf(s, len, "TYPE_%d:", addr->addr_type); if (l < 0) return EINVAL; s += l; len -= l; for(i = 0; i < addr->address.length; i++) { l = snprintf(s, len, "%02x", ((char*)addr->address.data)[i]); if (l < 0) return EINVAL; len -= l; s += l; } if(ret_len != NULL) *ret_len = s - str; return 0; } ret = (*a->print_addr)(addr, str, len); if(ret_len != NULL) *ret_len = ret; return 0; } krb5_error_code krb5_parse_address(krb5_context context, const char *string, krb5_addresses *addresses) { int i, n; struct addrinfo *ai, *a; int error; int save_errno; for(i = 0; i < num_addrs; i++) { if(at[i].parse_addr) { krb5_address addr; if((*at[i].parse_addr)(context, string, &addr) == 0) { ALLOC_SEQ(addresses, 1); addresses->val[0] = addr; return 0; } } } error = getaddrinfo (string, NULL, NULL, &ai); if (error) { save_errno = errno; krb5_set_error_string (context, "%s: %s", string, gai_strerror(error)); return krb5_eai_to_heim_errno(error, save_errno); } n = 0; for (a = ai; a != NULL; a = a->ai_next) ++n; ALLOC_SEQ(addresses, n); for (a = ai, i = 0; a != NULL; a = a->ai_next) { if(krb5_sockaddr2address (context, ai->ai_addr, &addresses->val[i]) == 0) i++; } freeaddrinfo (ai); return 0; } int krb5_address_order(krb5_context context, const krb5_address *addr1, const krb5_address *addr2) { /* this sucks; what if both addresses have order functions, which should we call? this works for now, though */ struct addr_operations *a; a = find_atype(addr1->addr_type); if(a == NULL) { krb5_set_error_string (context, "Address family %d not supported", addr1->addr_type); return KRB5_PROG_ATYPE_NOSUPP; } if(a->order_addr != NULL) return (*a->order_addr)(context, addr1, addr2); a = find_atype(addr2->addr_type); if(a == NULL) { krb5_set_error_string (context, "Address family %d not supported", addr2->addr_type); return KRB5_PROG_ATYPE_NOSUPP; } if(a->order_addr != NULL) return (*a->order_addr)(context, addr1, addr2); if(addr1->addr_type != addr2->addr_type) return addr1->addr_type - addr2->addr_type; if(addr1->address.length != addr2->address.length) return addr1->address.length - addr2->address.length; return memcmp (addr1->address.data, addr2->address.data, addr1->address.length); } krb5_boolean krb5_address_compare(krb5_context context, const krb5_address *addr1, const krb5_address *addr2) { return krb5_address_order (context, addr1, addr2) == 0; } krb5_boolean krb5_address_search(krb5_context context, const krb5_address *addr, const krb5_addresses *addrlist) { int i; for (i = 0; i < addrlist->len; ++i) if (krb5_address_compare (context, addr, &addrlist->val[i])) return TRUE; return FALSE; } krb5_error_code krb5_free_address(krb5_context context, krb5_address *address) { struct addr_operations *a = find_af (address->addr_type); if(a != NULL && a->free_addr != NULL) return (*a->free_addr)(context, address); krb5_data_free (&address->address); return 0; } krb5_error_code krb5_free_addresses(krb5_context context, krb5_addresses *addresses) { int i; for(i = 0; i < addresses->len; i++) krb5_free_address(context, &addresses->val[i]); free(addresses->val); return 0; } krb5_error_code krb5_copy_address(krb5_context context, const krb5_address *inaddr, krb5_address *outaddr) { struct addr_operations *a = find_af (inaddr->addr_type); if(a != NULL && a->copy_addr != NULL) return (*a->copy_addr)(context, inaddr, outaddr); return copy_HostAddress(inaddr, outaddr); } krb5_error_code krb5_copy_addresses(krb5_context context, const krb5_addresses *inaddr, krb5_addresses *outaddr) { int i; ALLOC_SEQ(outaddr, inaddr->len); if(inaddr->len > 0 && outaddr->val == NULL) return ENOMEM; for(i = 0; i < inaddr->len; i++) krb5_copy_address(context, &inaddr->val[i], &outaddr->val[i]); return 0; } krb5_error_code krb5_append_addresses(krb5_context context, krb5_addresses *dest, const krb5_addresses *source) { krb5_address *tmp; krb5_error_code ret; int i; if(source->len > 0) { tmp = realloc(dest->val, (dest->len + source->len) * sizeof(*tmp)); if(tmp == NULL) { krb5_set_error_string(context, "realloc: out of memory"); return ENOMEM; } dest->val = tmp; for(i = 0; i < source->len; i++) { /* skip duplicates */ if(krb5_address_search(context, &source->val[i], dest)) continue; ret = krb5_copy_address(context, &source->val[i], &dest->val[dest->len]); if(ret) return ret; dest->len++; } } return 0; } /* * Create an address of type KRB5_ADDRESS_ADDRPORT from (addr, port) */ krb5_error_code krb5_make_addrport (krb5_context context, krb5_address **res, const krb5_address *addr, int16_t port) { krb5_error_code ret; size_t len = addr->address.length + 2 + 4 * 4; u_char *p; *res = malloc (sizeof(**res)); if (*res == NULL) { krb5_set_error_string(context, "malloc: out of memory"); return ENOMEM; } (*res)->addr_type = KRB5_ADDRESS_ADDRPORT; ret = krb5_data_alloc (&(*res)->address, len); if (ret) { krb5_set_error_string(context, "malloc: out of memory"); free (*res); return ret; } p = (*res)->address.data; *p++ = 0; *p++ = 0; *p++ = (addr->addr_type ) & 0xFF; *p++ = (addr->addr_type >> 8) & 0xFF; *p++ = (addr->address.length ) & 0xFF; *p++ = (addr->address.length >> 8) & 0xFF; *p++ = (addr->address.length >> 16) & 0xFF; *p++ = (addr->address.length >> 24) & 0xFF; memcpy (p, addr->address.data, addr->address.length); p += addr->address.length; *p++ = 0; *p++ = 0; *p++ = (KRB5_ADDRESS_IPPORT ) & 0xFF; *p++ = (KRB5_ADDRESS_IPPORT >> 8) & 0xFF; *p++ = (2 ) & 0xFF; *p++ = (2 >> 8) & 0xFF; *p++ = (2 >> 16) & 0xFF; *p++ = (2 >> 24) & 0xFF; memcpy (p, &port, 2); p += 2; return 0; }