1464 lines
37 KiB
C
1464 lines
37 KiB
C
/*
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* Copyright (c) 1997-2007 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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RCSID("$Id: addr_families.c 22039 2007-11-10 11:47:35Z lha $");
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struct addr_operations {
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int af;
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krb5_address_type atype;
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size_t max_sockaddr_size;
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krb5_error_code (*sockaddr2addr)(const struct sockaddr *, krb5_address *);
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krb5_error_code (*sockaddr2port)(const struct sockaddr *, int16_t *);
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void (*addr2sockaddr)(const krb5_address *, struct sockaddr *,
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krb5_socklen_t *sa_size, int port);
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void (*h_addr2sockaddr)(const char *, struct sockaddr *, krb5_socklen_t *, int);
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krb5_error_code (*h_addr2addr)(const char *, krb5_address *);
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krb5_boolean (*uninteresting)(const struct sockaddr *);
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void (*anyaddr)(struct sockaddr *, krb5_socklen_t *, int);
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int (*print_addr)(const krb5_address *, char *, size_t);
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int (*parse_addr)(krb5_context, const char*, krb5_address *);
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int (*order_addr)(krb5_context, const krb5_address*, const krb5_address*);
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int (*free_addr)(krb5_context, krb5_address*);
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int (*copy_addr)(krb5_context, const krb5_address*, krb5_address*);
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int (*mask_boundary)(krb5_context, const krb5_address*, unsigned long,
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krb5_address*, krb5_address*);
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};
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/*
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* AF_INET - aka IPv4 implementation
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*/
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static krb5_error_code
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ipv4_sockaddr2addr (const struct sockaddr *sa, krb5_address *a)
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{
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const struct sockaddr_in *sin4 = (const struct sockaddr_in *)sa;
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unsigned char buf[4];
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a->addr_type = KRB5_ADDRESS_INET;
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memcpy (buf, &sin4->sin_addr, 4);
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return krb5_data_copy(&a->address, buf, 4);
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}
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static krb5_error_code
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ipv4_sockaddr2port (const struct sockaddr *sa, int16_t *port)
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{
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const struct sockaddr_in *sin4 = (const struct sockaddr_in *)sa;
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*port = sin4->sin_port;
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return 0;
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}
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static void
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ipv4_addr2sockaddr (const krb5_address *a,
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struct sockaddr *sa,
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krb5_socklen_t *sa_size,
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int port)
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{
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struct sockaddr_in tmp;
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memset (&tmp, 0, sizeof(tmp));
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tmp.sin_family = AF_INET;
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memcpy (&tmp.sin_addr, a->address.data, 4);
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tmp.sin_port = port;
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memcpy(sa, &tmp, min(sizeof(tmp), *sa_size));
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*sa_size = sizeof(tmp);
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}
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static void
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ipv4_h_addr2sockaddr(const char *addr,
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struct sockaddr *sa,
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krb5_socklen_t *sa_size,
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int port)
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{
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struct sockaddr_in tmp;
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memset (&tmp, 0, sizeof(tmp));
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tmp.sin_family = AF_INET;
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tmp.sin_port = port;
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tmp.sin_addr = *((const struct in_addr *)addr);
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memcpy(sa, &tmp, min(sizeof(tmp), *sa_size));
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*sa_size = sizeof(tmp);
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}
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static krb5_error_code
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ipv4_h_addr2addr (const char *addr,
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krb5_address *a)
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{
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unsigned char buf[4];
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a->addr_type = KRB5_ADDRESS_INET;
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memcpy(buf, addr, 4);
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return krb5_data_copy(&a->address, buf, 4);
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}
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/*
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* Are there any addresses that should be considered `uninteresting'?
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*/
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static krb5_boolean
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ipv4_uninteresting (const struct sockaddr *sa)
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{
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const struct sockaddr_in *sin4 = (const struct sockaddr_in *)sa;
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if (sin4->sin_addr.s_addr == INADDR_ANY)
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return TRUE;
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return FALSE;
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}
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static void
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ipv4_anyaddr (struct sockaddr *sa, krb5_socklen_t *sa_size, int port)
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{
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struct sockaddr_in tmp;
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memset (&tmp, 0, sizeof(tmp));
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tmp.sin_family = AF_INET;
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tmp.sin_port = port;
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tmp.sin_addr.s_addr = INADDR_ANY;
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memcpy(sa, &tmp, min(sizeof(tmp), *sa_size));
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*sa_size = sizeof(tmp);
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}
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static int
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ipv4_print_addr (const krb5_address *addr, char *str, size_t len)
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{
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struct in_addr ia;
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memcpy (&ia, addr->address.data, 4);
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return snprintf (str, len, "IPv4:%s", inet_ntoa(ia));
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}
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static int
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ipv4_parse_addr (krb5_context context, const char *address, krb5_address *addr)
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{
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const char *p;
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struct in_addr a;
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p = strchr(address, ':');
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if(p) {
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p++;
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if(strncasecmp(address, "ip:", p - address) != 0 &&
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strncasecmp(address, "ip4:", p - address) != 0 &&
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strncasecmp(address, "ipv4:", p - address) != 0 &&
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strncasecmp(address, "inet:", p - address) != 0)
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return -1;
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} else
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p = address;
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#ifdef HAVE_INET_ATON
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if(inet_aton(p, &a) == 0)
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return -1;
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#elif defined(HAVE_INET_ADDR)
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a.s_addr = inet_addr(p);
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if(a.s_addr == INADDR_NONE)
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return -1;
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#else
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return -1;
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#endif
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addr->addr_type = KRB5_ADDRESS_INET;
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if(krb5_data_alloc(&addr->address, 4) != 0)
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return -1;
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_krb5_put_int(addr->address.data, ntohl(a.s_addr), addr->address.length);
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return 0;
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}
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static int
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ipv4_mask_boundary(krb5_context context, const krb5_address *inaddr,
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unsigned long len, krb5_address *low, krb5_address *high)
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{
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unsigned long ia;
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uint32_t l, h, m = 0xffffffff;
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if (len > 32) {
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krb5_set_error_string(context, "IPv4 prefix too large (%ld)", len);
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return KRB5_PROG_ATYPE_NOSUPP;
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}
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m = m << (32 - len);
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_krb5_get_int(inaddr->address.data, &ia, inaddr->address.length);
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l = ia & m;
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h = l | ~m;
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low->addr_type = KRB5_ADDRESS_INET;
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if(krb5_data_alloc(&low->address, 4) != 0)
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return -1;
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_krb5_put_int(low->address.data, l, low->address.length);
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high->addr_type = KRB5_ADDRESS_INET;
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if(krb5_data_alloc(&high->address, 4) != 0) {
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krb5_free_address(context, low);
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return -1;
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}
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_krb5_put_int(high->address.data, h, high->address.length);
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return 0;
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}
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/*
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* AF_INET6 - aka IPv6 implementation
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*/
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#ifdef HAVE_IPV6
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static krb5_error_code
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ipv6_sockaddr2addr (const struct sockaddr *sa, krb5_address *a)
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{
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const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa;
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if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
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unsigned char buf[4];
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a->addr_type = KRB5_ADDRESS_INET;
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#ifndef IN6_ADDR_V6_TO_V4
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#ifdef IN6_EXTRACT_V4ADDR
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#define IN6_ADDR_V6_TO_V4(x) (&IN6_EXTRACT_V4ADDR(x))
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#else
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#define IN6_ADDR_V6_TO_V4(x) ((const struct in_addr *)&(x)->s6_addr[12])
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#endif
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#endif
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memcpy (buf, IN6_ADDR_V6_TO_V4(&sin6->sin6_addr), 4);
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return krb5_data_copy(&a->address, buf, 4);
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} else {
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a->addr_type = KRB5_ADDRESS_INET6;
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return krb5_data_copy(&a->address,
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&sin6->sin6_addr,
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sizeof(sin6->sin6_addr));
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}
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}
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static krb5_error_code
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ipv6_sockaddr2port (const struct sockaddr *sa, int16_t *port)
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{
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const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa;
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*port = sin6->sin6_port;
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return 0;
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}
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static void
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ipv6_addr2sockaddr (const krb5_address *a,
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struct sockaddr *sa,
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krb5_socklen_t *sa_size,
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int port)
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{
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struct sockaddr_in6 tmp;
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memset (&tmp, 0, sizeof(tmp));
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tmp.sin6_family = AF_INET6;
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memcpy (&tmp.sin6_addr, a->address.data, sizeof(tmp.sin6_addr));
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tmp.sin6_port = port;
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memcpy(sa, &tmp, min(sizeof(tmp), *sa_size));
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*sa_size = sizeof(tmp);
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}
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static void
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ipv6_h_addr2sockaddr(const char *addr,
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struct sockaddr *sa,
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krb5_socklen_t *sa_size,
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int port)
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{
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struct sockaddr_in6 tmp;
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memset (&tmp, 0, sizeof(tmp));
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tmp.sin6_family = AF_INET6;
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tmp.sin6_port = port;
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tmp.sin6_addr = *((const struct in6_addr *)addr);
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memcpy(sa, &tmp, min(sizeof(tmp), *sa_size));
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*sa_size = sizeof(tmp);
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}
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static krb5_error_code
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ipv6_h_addr2addr (const char *addr,
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krb5_address *a)
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{
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a->addr_type = KRB5_ADDRESS_INET6;
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return krb5_data_copy(&a->address, addr, sizeof(struct in6_addr));
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}
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/*
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*
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*/
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static krb5_boolean
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ipv6_uninteresting (const struct sockaddr *sa)
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{
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const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa;
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const struct in6_addr *in6 = (const struct in6_addr *)&sin6->sin6_addr;
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return
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IN6_IS_ADDR_LINKLOCAL(in6)
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|| IN6_IS_ADDR_V4COMPAT(in6);
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}
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static void
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ipv6_anyaddr (struct sockaddr *sa, krb5_socklen_t *sa_size, int port)
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{
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struct sockaddr_in6 tmp;
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memset (&tmp, 0, sizeof(tmp));
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tmp.sin6_family = AF_INET6;
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tmp.sin6_port = port;
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tmp.sin6_addr = in6addr_any;
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*sa_size = sizeof(tmp);
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}
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static int
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ipv6_print_addr (const krb5_address *addr, char *str, size_t len)
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{
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char buf[128], buf2[3];
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#ifdef HAVE_INET_NTOP
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if(inet_ntop(AF_INET6, addr->address.data, buf, sizeof(buf)) == NULL)
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#endif
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{
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/* XXX this is pretty ugly, but better than abort() */
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int i;
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unsigned char *p = addr->address.data;
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buf[0] = '\0';
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for(i = 0; i < addr->address.length; i++) {
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snprintf(buf2, sizeof(buf2), "%02x", p[i]);
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if(i > 0 && (i & 1) == 0)
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strlcat(buf, ":", sizeof(buf));
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strlcat(buf, buf2, sizeof(buf));
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}
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}
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return snprintf(str, len, "IPv6:%s", buf);
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}
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static int
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ipv6_parse_addr (krb5_context context, const char *address, krb5_address *addr)
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{
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int ret;
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struct in6_addr in6;
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const char *p;
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p = strchr(address, ':');
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if(p) {
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p++;
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if(strncasecmp(address, "ip6:", p - address) == 0 ||
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strncasecmp(address, "ipv6:", p - address) == 0 ||
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strncasecmp(address, "inet6:", p - address) == 0)
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address = p;
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}
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ret = inet_pton(AF_INET6, address, &in6.s6_addr);
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if(ret == 1) {
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addr->addr_type = KRB5_ADDRESS_INET6;
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ret = krb5_data_alloc(&addr->address, sizeof(in6.s6_addr));
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if (ret)
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return -1;
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memcpy(addr->address.data, in6.s6_addr, sizeof(in6.s6_addr));
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return 0;
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}
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return -1;
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}
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static int
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ipv6_mask_boundary(krb5_context context, const krb5_address *inaddr,
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unsigned long len, krb5_address *low, krb5_address *high)
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{
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struct in6_addr addr, laddr, haddr;
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uint32_t m;
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int i, sub_len;
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if (len > 128) {
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krb5_set_error_string(context, "IPv6 prefix too large (%ld)", len);
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return KRB5_PROG_ATYPE_NOSUPP;
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}
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if (inaddr->address.length != sizeof(addr)) {
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krb5_set_error_string(context, "IPv6 addr bad length");
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return KRB5_PROG_ATYPE_NOSUPP;
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}
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memcpy(&addr, inaddr->address.data, inaddr->address.length);
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for (i = 0; i < 16; i++) {
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sub_len = min(8, len);
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m = 0xff << (8 - sub_len);
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laddr.s6_addr[i] = addr.s6_addr[i] & m;
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haddr.s6_addr[i] = (addr.s6_addr[i] & m) | ~m;
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if (len > 8)
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len -= 8;
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else
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len = 0;
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}
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low->addr_type = KRB5_ADDRESS_INET6;
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if (krb5_data_alloc(&low->address, sizeof(laddr.s6_addr)) != 0)
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return -1;
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memcpy(low->address.data, laddr.s6_addr, sizeof(laddr.s6_addr));
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high->addr_type = KRB5_ADDRESS_INET6;
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if (krb5_data_alloc(&high->address, sizeof(haddr.s6_addr)) != 0) {
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krb5_free_address(context, low);
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return -1;
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}
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memcpy(high->address.data, haddr.s6_addr, sizeof(haddr.s6_addr));
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return 0;
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}
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#endif /* IPv6 */
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/*
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* table
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*/
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#define KRB5_ADDRESS_ARANGE (-100)
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struct arange {
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krb5_address low;
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krb5_address high;
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};
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|
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static int
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arange_parse_addr (krb5_context context,
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const char *address, krb5_address *addr)
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{
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char buf[1024], *p;
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krb5_address low0, high0;
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struct arange *a;
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krb5_error_code ret;
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if(strncasecmp(address, "RANGE:", 6) != 0)
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return -1;
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address += 6;
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p = strrchr(address, '/');
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if (p) {
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krb5_addresses addrmask;
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char *q;
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long num;
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if (strlcpy(buf, address, sizeof(buf)) > sizeof(buf))
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return -1;
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buf[p - address] = '\0';
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ret = krb5_parse_address(context, buf, &addrmask);
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if (ret)
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return ret;
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if(addrmask.len != 1) {
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krb5_free_addresses(context, &addrmask);
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return -1;
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}
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address += p - address + 1;
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num = strtol(address, &q, 10);
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if (q == address || *q != '\0' || num < 0) {
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krb5_free_addresses(context, &addrmask);
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return -1;
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}
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|
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ret = krb5_address_prefixlen_boundary(context, &addrmask.val[0], num,
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&low0, &high0);
|
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krb5_free_addresses(context, &addrmask);
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if (ret)
|
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return ret;
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|
} else {
|
|
krb5_addresses low, high;
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|
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strsep_copy(&address, "-", buf, sizeof(buf));
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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;
|
|
}
|
|
|
|
ret = krb5_copy_address(context, &high.val[0], &high0);
|
|
if (ret == 0) {
|
|
ret = krb5_copy_address(context, &low.val[0], &low0);
|
|
if (ret)
|
|
krb5_free_address(context, &high0);
|
|
}
|
|
krb5_free_addresses(context, &low);
|
|
krb5_free_addresses(context, &high);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
krb5_data_alloc(&addr->address, sizeof(*a));
|
|
addr->addr_type = KRB5_ADDRESS_ARANGE;
|
|
a = addr->address.data;
|
|
|
|
if(krb5_address_order(context, &low0, &high0) < 0) {
|
|
a->low = low0;
|
|
a->high = high0;
|
|
} else {
|
|
a->low = high0;
|
|
a->high = low0;
|
|
}
|
|
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);
|
|
krb5_data_free(&addr->address);
|
|
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, size, ret_len;
|
|
|
|
a = addr->address.data;
|
|
|
|
l = strlcpy(str, "RANGE:", len);
|
|
ret_len = l;
|
|
if (l > len)
|
|
l = len;
|
|
size = l;
|
|
|
|
ret = krb5_print_address (&a->low, str + size, len - size, &l);
|
|
if (ret)
|
|
return ret;
|
|
ret_len += l;
|
|
if (len - size > l)
|
|
size += l;
|
|
else
|
|
size = len;
|
|
|
|
l = strlcat(str + size, "-", len - size);
|
|
ret_len += l;
|
|
if (len - size > l)
|
|
size += l;
|
|
else
|
|
size = len;
|
|
|
|
ret = krb5_print_address (&a->high, str + size, len - size, &l);
|
|
if (ret)
|
|
return ret;
|
|
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_error_code ret;
|
|
krb5_address addr1, addr2;
|
|
uint16_t port = 0;
|
|
size_t ret_len = 0, l, size = 0;
|
|
krb5_storage *sp;
|
|
|
|
sp = krb5_storage_from_data((krb5_data*)rk_UNCONST(&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;
|
|
if (len > l)
|
|
size += l;
|
|
else
|
|
size = len;
|
|
|
|
ret = krb5_print_address(&addr1, str + size, len - size, &l);
|
|
if (ret)
|
|
return ret;
|
|
ret_len += l;
|
|
if (len - size > l)
|
|
size += l;
|
|
else
|
|
size = len;
|
|
|
|
ret = snprintf(str + size, len - size, ",PORT=%u", port);
|
|
if (ret < 0)
|
|
return EINVAL;
|
|
ret_len += ret;
|
|
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,
|
|
NULL, NULL, NULL, ipv4_mask_boundary },
|
|
#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,
|
|
NULL, NULL, NULL, ipv6_mask_boundary } ,
|
|
#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_sockaddr2address stores a address a "struct sockaddr" sa in
|
|
* the krb5_address addr.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param sa a struct sockaddr to extract the address from
|
|
* @param addr an Kerberos 5 address to store the address in.
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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_sockaddr2port extracts a port (if possible) from a "struct
|
|
* sockaddr.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param sa a struct sockaddr to extract the port from
|
|
* @param port a pointer to an int16_t store the port in.
|
|
*
|
|
* @return Return an error code or 0. Will return
|
|
* KRB5_PROG_ATYPE_NOSUPP in case address type is not supported.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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_addr2sockaddr sets the "struct sockaddr sockaddr" from addr
|
|
* and port. The argument sa_size should initially contain the size of
|
|
* the sa and after the call, it will contain the actual length of the
|
|
* address. In case of the sa is too small to fit the whole address,
|
|
* the up to *sa_size will be stored, and then *sa_size will be set to
|
|
* the required length.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param addr the address to copy the from
|
|
* @param sa the struct sockaddr that will be filled in
|
|
* @param sa_size pointer to length of sa, and after the call, it will
|
|
* contain the actual length of the address.
|
|
* @param port set port in sa.
|
|
*
|
|
* @return Return an error code or 0. Will return
|
|
* KRB5_PROG_ATYPE_NOSUPP in case address type is not supported.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* krb5_max_sockaddr_size returns the max size of the .Li struct
|
|
* sockaddr that the Kerberos library will return.
|
|
*
|
|
* @return Return an size_t of the maximum struct sockaddr.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
size_t KRB5_LIB_FUNCTION
|
|
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_sockaddr_uninteresting returns TRUE for all .Fa sa that the
|
|
* kerberos library thinks are uninteresting. One example are link
|
|
* local addresses.
|
|
*
|
|
* @param sa pointer to struct sockaddr that might be interesting.
|
|
*
|
|
* @return Return a non zero for uninteresting addresses.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_boolean KRB5_LIB_FUNCTION
|
|
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_h_addr2sockaddr initializes a "struct sockaddr sa" from af and
|
|
* the "struct hostent" (see gethostbyname(3) ) h_addr_list
|
|
* component. The argument sa_size should initially contain the size
|
|
* of the sa, and after the call, it will contain the actual length of
|
|
* the address.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param af addresses
|
|
* @param addr address
|
|
* @param sa returned struct sockaddr
|
|
* @param sa_size size of sa
|
|
* @param port port to set in sa.
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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_h_addr2addr works like krb5_h_addr2sockaddr with the exception
|
|
* that it operates on a krb5_address instead of a struct sockaddr.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param af address family
|
|
* @param haddr host address from struct hostent.
|
|
* @param addr returned krb5_address.
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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_anyaddr fills in a "struct sockaddr sa" that can be used to
|
|
* bind(2) to. The argument sa_size should initially contain the size
|
|
* of the sa, and after the call, it will contain the actual length
|
|
* of the address.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param af address family
|
|
* @param sa sockaddr
|
|
* @param sa_size lenght of sa.
|
|
* @param port for to fill into sa.
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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_print_address prints the address in addr to the string string
|
|
* that have the length len. If ret_len is not NULL, it will be filled
|
|
* with the length of the string if size were unlimited (not including
|
|
* the final NUL) .
|
|
*
|
|
* @param addr address to be printed
|
|
* @param str pointer string to print the address into
|
|
* @param len length that will fit into area pointed to by "str".
|
|
* @param ret_len return length the str.
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
krb5_print_address (const krb5_address *addr,
|
|
char *str, size_t len, size_t *ret_len)
|
|
{
|
|
struct addr_operations *a = find_atype(addr->addr_type);
|
|
int ret;
|
|
|
|
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 || l >= len)
|
|
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 || l >= len)
|
|
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 < 0)
|
|
return EINVAL;
|
|
if(ret_len != NULL)
|
|
*ret_len = ret;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* krb5_parse_address returns the resolved hostname in string to the
|
|
* krb5_addresses addresses .
|
|
*
|
|
* @param context a Keberos context
|
|
* @param string
|
|
* @param addresses
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
krb5_parse_address(krb5_context context,
|
|
const char *string,
|
|
krb5_addresses *addresses)
|
|
{
|
|
int i, n;
|
|
struct addrinfo *ai, *a;
|
|
int error;
|
|
int save_errno;
|
|
|
|
addresses->len = 0;
|
|
addresses->val = NULL;
|
|
|
|
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);
|
|
if (addresses->val == NULL) {
|
|
krb5_set_error_string(context, "malloc: out of memory");
|
|
return ENOMEM;
|
|
}
|
|
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);
|
|
if (addresses->val == NULL) {
|
|
krb5_set_error_string(context, "malloc: out of memory");
|
|
freeaddrinfo(ai);
|
|
return ENOMEM;
|
|
}
|
|
|
|
addresses->len = 0;
|
|
for (a = ai, i = 0; a != NULL; a = a->ai_next) {
|
|
if (krb5_sockaddr2address (context, ai->ai_addr, &addresses->val[i]))
|
|
continue;
|
|
if(krb5_address_search(context, &addresses->val[i], addresses))
|
|
continue;
|
|
addresses->len = i;
|
|
i++;
|
|
}
|
|
freeaddrinfo (ai);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* krb5_address_order compares the addresses addr1 and addr2 so that
|
|
* it can be used for sorting addresses. If the addresses are the same
|
|
* address krb5_address_order will return 0. Behavies like memcmp(2).
|
|
*
|
|
* @param context a Keberos context
|
|
* @param addr1 krb5_address to compare
|
|
* @param addr2 krb5_address to compare
|
|
*
|
|
* @return < 0 if address addr1 in "less" then addr2. 0 if addr1 and
|
|
* addr2 is the same address, > 0 if addr2 is "less" then addr1.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
int KRB5_LIB_FUNCTION
|
|
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_address_compare compares the addresses addr1 and addr2.
|
|
* Returns TRUE if the two addresses are the same.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param addr1 address to compare
|
|
* @param addr2 address to compare
|
|
*
|
|
* @return Return an TRUE is the address are the same FALSE if not
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_boolean KRB5_LIB_FUNCTION
|
|
krb5_address_compare(krb5_context context,
|
|
const krb5_address *addr1,
|
|
const krb5_address *addr2)
|
|
{
|
|
return krb5_address_order (context, addr1, addr2) == 0;
|
|
}
|
|
|
|
/**
|
|
* krb5_address_search checks if the address addr is a member of the
|
|
* address set list addrlist .
|
|
*
|
|
* @param context a Keberos context.
|
|
* @param addr address to search for.
|
|
* @param addrlist list of addresses to look in for addr.
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_boolean KRB5_LIB_FUNCTION
|
|
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_free_address frees the data stored in the address that is
|
|
* alloced with any of the krb5_address functions.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param address addresss to be freed.
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
krb5_free_address(krb5_context context,
|
|
krb5_address *address)
|
|
{
|
|
struct addr_operations *a = find_atype (address->addr_type);
|
|
if(a != NULL && a->free_addr != NULL)
|
|
return (*a->free_addr)(context, address);
|
|
krb5_data_free (&address->address);
|
|
memset(address, 0, sizeof(*address));
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* krb5_free_addresses frees the data stored in the address that is
|
|
* alloced with any of the krb5_address functions.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param addresses addressses to be freed.
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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);
|
|
addresses->len = 0;
|
|
addresses->val = NULL;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* krb5_copy_address copies the content of address
|
|
* inaddr to outaddr.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param inaddr pointer to source address
|
|
* @param outaddr pointer to destination address
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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_copy_addresses copies the content of addresses
|
|
* inaddr to outaddr.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param inaddr pointer to source addresses
|
|
* @param outaddr pointer to destination addresses
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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_append_addresses adds the set of addresses in source to
|
|
* dest. While copying the addresses, duplicates are also sorted out.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param dest destination of copy operation
|
|
* @param source adresses that are going to be added to dest
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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)
|
|
*
|
|
* @param context a Keberos context
|
|
* @param res built address from addr/port
|
|
* @param addr address to use
|
|
* @param port port to use
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
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);
|
|
*res = NULL;
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* Calculate the boundary addresses of `inaddr'/`prefixlen' and store
|
|
* them in `low' and `high'.
|
|
*
|
|
* @param context a Keberos context
|
|
* @param inaddr address in prefixlen that the bondery searched
|
|
* @param prefixlen width of boundery
|
|
* @param low lowest address
|
|
* @param high highest address
|
|
*
|
|
* @return Return an error code or 0.
|
|
*
|
|
* @ingroup krb5_address
|
|
*/
|
|
|
|
krb5_error_code KRB5_LIB_FUNCTION
|
|
krb5_address_prefixlen_boundary(krb5_context context,
|
|
const krb5_address *inaddr,
|
|
unsigned long prefixlen,
|
|
krb5_address *low,
|
|
krb5_address *high)
|
|
{
|
|
struct addr_operations *a = find_atype (inaddr->addr_type);
|
|
if(a != NULL && a->mask_boundary != NULL)
|
|
return (*a->mask_boundary)(context, inaddr, prefixlen, low, high);
|
|
krb5_set_error_string(context, "Address family %d doesn't support "
|
|
"address mask operation", inaddr->addr_type);
|
|
return KRB5_PROG_ATYPE_NOSUPP;
|
|
}
|