nb_net.c revision 4bff34e37def8a90f9194d81bc345c52ba20086a
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Copyright (c) 2000, Boris Popov
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * All rights reserved.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Redistribution and use in source and binary forms, with or without
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * modification, are permitted provided that the following conditions
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * are met:
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * 1. Redistributions of source code must retain the above copyright
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * notice, this list of conditions and the following disclaimer.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * 2. Redistributions in binary form must reproduce the above copyright
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * notice, this list of conditions and the following disclaimer in the
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * documentation and/or other materials provided with the distribution.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * 3. All advertising materials mentioning features or use of this software
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * must display the following acknowledgement:
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * This product includes software developed by Boris Popov.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * 4. Neither the name of the author nor the names of any co-contributors
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * may be used to endorse or promote products derived from this software
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * without specific prior written permission.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * SUCH DAMAGE.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * $Id: nb_net.c,v 1.8 2004/03/19 01:49:47 lindak Exp $
4bff34e37def8a90f9194d81bc345c52ba20086athurlow */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#pragma ident "%Z%%M% %I% %E% SMI"
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <sys/param.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <sys/socket.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <sys/ioctl.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <sys/sockio.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <net/if.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <ctype.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <netdb.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <errno.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <stdlib.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <string.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <strings.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <stdio.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <unistd.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <err.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <netsmb/netbios.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <netsmb/smb_lib.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <netsmb/nb_lib.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlownb_getlocalname(char *name, size_t maxlen)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow char buf[1024], *cp;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (gethostname(buf, sizeof (buf)) != 0)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (errno);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow cp = strchr(buf, '.');
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (cp)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *cp = 0;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow strlcpy(name, buf, maxlen);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (0);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlownb_resolvehost_in(const char *name, struct sockaddr **dest)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct hostent *h;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct sockaddr_in *sinp;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow in_addr_t addr;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct in_addr in;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow int len;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow char **p;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow h = gethostbyname(name);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (!h) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#ifdef DEBUG
4bff34e37def8a90f9194d81bc345c52ba20086athurlow warnx("can't get server address `%s': ", name);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#endif
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (ENETDOWN);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (h->h_addrtype != AF_INET) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#ifdef DEBUG
4bff34e37def8a90f9194d81bc345c52ba20086athurlow warnx("address for `%s' is not in the AF_INET family", name);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#endif
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (EAFNOSUPPORT);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (h->h_length != 4) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#ifdef DEBUG
4bff34e37def8a90f9194d81bc345c52ba20086athurlow warnx("address for `%s' has invalid length", name);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#endif
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (EAFNOSUPPORT);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow len = sizeof (struct sockaddr_in);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow sinp = malloc(len);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (sinp == NULL)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (ENOMEM);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow bzero(sinp, len);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow /*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * There is no sin_len in sockaddr_in structure on Solaris.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * sinp->sin_len = len;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow sinp->sin_family = h->h_addrtype;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow memcpy(&sinp->sin_addr.s_addr, *h->h_addr_list,\
4bff34e37def8a90f9194d81bc345c52ba20086athurlow sizeof (sinp->sin_addr.s_addr));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow sinp->sin_port = htons(SMB_TCP_PORT);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *dest = (struct sockaddr *)sinp;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (0);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#ifdef NOT_DEFINED
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlownb_enum_if(struct nb_ifdesc **iflist) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct lifconf ifc;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct lifreq *ifrqp;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct nb_ifdesc *ifd;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct in_addr iaddr, imask;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct lifnum ifn;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow char *ifrdata, *iname;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow int s, rdlen, ifcnt, error, iflags, i;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *iflist = NULL;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow s = socket(AF_INET, SOCK_DGRAM, 0);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (s == -1)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (errno);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow /* Get number of interfaces. */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifn.lifn_family = AF_INET;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifn.lifn_flags = 0;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifn.lifn_count = 0;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (ioctl(s, SIOCGLIFNUM, &ifn) != 0) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow error = errno;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow goto bad;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow rdlen = ifn.lifn_count * sizeof (struct lifreq);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifrdata = malloc(rdlen);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (ifrdata == NULL) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow error = ENOMEM;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow goto bad;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifc.lifc_flags = 0;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifc.lifc_family = AF_INET;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifc.lifc_len = rdlen;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifc.lifc_buf = ifrdata;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (ioctl(s, SIOCGLIFCONF, &ifc) != 0) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow error = errno;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow goto bad;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifrqp = ifc.lifc_req;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifcnt = ifc.lifc_len / sizeof (struct lifreq);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow error = 0;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow for (i = 0; i < ifcnt; i++, ifrqp++) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow /* XXX for now, avoid IP6 broadcast performance costs */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (ifrqp->lifr_addr.ss_family != AF_INET)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow continue;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (ioctl(s, SIOCGLIFFLAGS, ifrqp) != 0)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow continue;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow iflags = ifrqp->lifr_flags;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if ((iflags & IFF_UP) == 0 || (iflags & IFF_BROADCAST) == 0)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow continue;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (ioctl(s, SIOCGLIFADDR, ifrqp) != 0 ||
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifrqp->lifr_addr.ss_family != AF_INET) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow continue;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow iname = ifrqp->lifr_name;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (strlen(iname) >= sizeof (ifd->id_name))
4bff34e37def8a90f9194d81bc345c52ba20086athurlow continue;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow iaddr = (*(struct sockaddr_in *)&ifrqp->lifr_addr).sin_addr;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (ioctl(s, SIOCGLIFNETMASK, ifrqp) != 0)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow continue;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow imask = ((struct sockaddr_in *)&ifrqp->lifr_addr)->sin_addr;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifd = malloc(sizeof (struct nb_ifdesc));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (ifd == NULL)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (ENOMEM);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow bzero(ifd, sizeof (struct nb_ifdesc));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow strcpy(ifd->id_name, iname);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifd->id_flags = iflags;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifd->id_addr = iaddr;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifd->id_mask = imask;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow ifd->id_next = *iflist;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *iflist = ifd;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow }
4bff34e37def8a90f9194d81bc345c52ba20086athurlowbad:
4bff34e37def8a90f9194d81bc345c52ba20086athurlow free(ifrdata);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow close(s);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (error);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/*ARGSUSED*/
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlownbns_resolvename(const char *name, struct sockaddr **dest)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow printf("NetBIOS name resolver is not included in this distribution.\n");
4bff34e37def8a90f9194d81bc345c52ba20086athurlow printf("Please use '-I' option to specify an IP address of server.\n");
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (EHOSTUNREACH);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlownb_hostlookup(struct nb_name *np, const char *server, const char *hint,
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct sockaddr_nb **dst)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow struct sockaddr_nb *snb;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow int error;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow error = nb_sockaddr(NULL, np, &snb);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (error)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (error);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow do {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (hint) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow error = nb_resolvehost_in(host, snb);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (error)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow break;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow } else {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow error = nb_resolvename(server);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow } while (0);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow if (!error) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *dst = snb;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow } else
4bff34e37def8a90f9194d81bc345c52ba20086athurlow nb_snbfree(snb);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow return (error);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#endif