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/* ******************************************************************** *
* ni_fallbackhwaddr.c version 0.01 2-3-09 *
* *
* COPYRIGHT 2008-2009 Michael Robinton <michael@bizsystems.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of either: *
* *
* a) the GNU General Public License as published by the Free *
* Software Foundation; either version 2, or (at your option) any *
* later version, or *
* *
* b) the "Artistic License" which comes with this distribution. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See either *
* the GNU General Public License or the Artistic License for more *
* details. *
* *
* You should have received a copy of the Artistic License with this *
* distribution, in the file named "Artistic". If not, I'll be glad *
* to provide one. *
* *
* You should also have received a copy of the GNU General Public *
* License along with this program in the file named "Copying". If not, *
* write to the *
* *
* Free Software Foundation, Inc. *
* 59 Temple Place, Suite 330 *
* Boston, MA 02111-1307, USA *
* *
* or visit their web page on the internet at: *
* *
* http://www.gnu.org/copyleft/gpl.html. *
* ******************************************************************** */
#include "localconf.h"
unsigned char *
ni_fallbackhwaddr(u_int af, void * vifr)
{
struct nifreq * ifr = (struct nifreq * )vifr;
int i, n, dflgs, ppa, fd = -1;
char * p;
#ifdef HAVE_STRUCT_IFDEVEA
struct ifdevea physaddr;
#endif
#ifdef HAVE_NETIO_H
struct fis * ioctl_arg;
#endif
#ifdef HAVE_SYS_DLPI_H
char name[IFNAMSIZ +5], dlpbuf[DL_MAXIMUM];
struct strbuf ctrl;
union DL_primitives dlp;
dl_info_ack_t * dlpi = (dl_info_ack_t *)dlpbuf;
# ifdef DL_ATTACH_REQ
dl_ok_ack_t * dlpa = (dl_ok_ack_t *)dlpbuf;
dl_bind_ack_t * dlpb = (dl_bind_ack_t *)dlpbuf;
dl_phys_addr_ack_t * dlpp = (dl_phys_addr_ack_t *)dlpbuf;
# endif
#endif
#if defined (SIOCGIFHWADDR) || defined (SIOCGENADR) || (defined (HAVE_STRUCT_IFDEVEA) && defined (SIOCPHYSADDR))
if ((fd = ni_clos_reopn_dgrm(fd,af)) < 0)
goto dgrm_failed;
# ifdef SIOCGIFHWADDR
if (ioctl(fd,SIOCGIFHWADDR,ifr) != -1 && NI_MAC_NOT_ZERO(&ifr->ni_saddr.sa_data)) {
close(fd);
return (unsigned char *)(&ifr->ni_saddr.sa_data);
}
# endif
# ifdef SIOCGENADDR
if (ioctl(fd,SIOCGENADDR,ifr) != -1 && NI_MAC_NOT_ZERO(&ifr->ni_char)) {
close(fd);
return (unsigned char *)&ifr->ni_char;
}
# endif
# if defined (HAVE_STRUCT_IFDEVEA) && defined (SIOCSPHYSADDR)
bzero(phys.ifr_name,sizeof(physaddr));
strlcpy(physaddr.ifr_name,ifr->ni_ifr_name,IFNAMSIZ);
if (ioctl(fd,SIOCPHYSADDR,&physaddr) >= 0 && NI_MAC_NOT_ZERO(physaddr.current_pa)) {
memcpy(&ifr->ni_char,&physaddr.current_pa[0]);
close(fd);
return (unsigned char *)&ifr->ni_char;
}
# endif
close(fd);
dgrm_failed:
#endif /* all that stuff above */
/* ok, could not get the MAC address the easy way, try harder */
#ifdef HAVE_NIT_IF_H
if ((fd = open("/dev/nit",0)) >= 0) {
if (ioctl(fd,NIOCBIND,ifr) >= 0 &&
ioctl(fd,SIOCGIFADDR) >= 0) {
close(fd);
if (NI_MAC_NOT_ZERO(&ifr->ni_char))
return (unsigned char *)&ifr->ni_char;
else
close(fd);
}
#endif
/* http://www.informatik.uni-frankfurt.de/doc/man/hpux/lan.7.html */
#ifdef HAVE_NETIO_H
if ((fd = open(&ifr->ni_ifr_name,O_RDONLY)) >= 0) {
bzero(&ioctl_arg,sizeof(struct fis));
ioctl_arg.reqtype = LOCAL_ADDRESS;
if (ioctl(fd,NETSTAT,&ioctl_arg) >= 0) {
close(fd);
if (ioctl_arg.vtype == 6) {
memcpy(&ifr->ni_char,&ioctl_arg.value.s[0],6);
return (unsigned char *)&ifr->ni_char;
}
}
close(fd);
}
#endif
#ifdef HAVE_SYS_DLPI_H
ppa = -1;
sprintf(name,"/dev/%s",&ifr->ni_ifr_name);
if ((fd = open(name,O_RDWR)) < 0) {
/* try opening without the ppa number */
n = strlen(name);
p = name;
p += 5;
for(i=5;i<n;i++,p++) {
if (isdigit(*p)) {
if (ppa < 0) {
ppa = *p - '0'; /* terminate the name at the ppa number start */
*p = '\0'; /* but continue for multi digit ppa numbers */
}
else {
ppa *= 10;
ppa += (*p - '0');
}
}
}
if (ppa < 0 || (fd = open(name,O_RDWR)) < 0) {
/* as a last resort, try /dev/dlpi */
if ((fd = open("/dev/dlpi",O_RDWR)) < 0)
goto hwaddr_error;
}
}
/* get INFO and hardware mac address */
bzero(&ctrl,sizeof(ctrl));
dlp.dl_primitive = DL_INFO_REQ;
ctrl.buf = (char *)&dlp;
ctrl.len = DL_INFO_REQ_SIZE;
if (putmsg(fd,&ctrl,NULL,0) < 0)
goto dlpi_error;
ctrl.buf = (char *)&dlpbuf;
ctrl.len = 0;
ctrl.maxlen = DL_MAXIMUM;
i = RS_HIPRI; /* flags */
bzero(dlpbuf,DL_MAXIMUM);
if (getmsg(fd,&ctrl,NULL,&i) < 0)
goto dlpi_error;
if (dlpi->dl_primitive != DL_INFO_ACK)
goto dlpi_error;
/* have hardware mac, might not be current mac */
memcpy(&ifr->ni_ifr_name,(dlpbuf + dlpi->dl_addr_offset),6);
# ifdef DL_ATTACH_REQ
if (ppa < 0 || dlpi->dl_provider_style != DL_STYLE2)
goto dlpi_ret_hw;
bzero(&ctrl,sizeof(ctrl));
dlp.attach_req.dl_primitive = DL_ATTACH_REQ;
dlp.attach_req.dl_ppa = ppa;
ctrl.buf = (char *)&dlp;
ctrl.len = DL_ATTACH_REQ_SIZE;
if (putmsg(fd,&ctrl,NULL,0) < 0)
goto dlpi_ret_hw;
ctrl.buf = (char *)&dlpbuf;
ctrl.len = 0;
ctrl.maxlen = DL_MAXIMUM;
i = RS_HIPRI; /* flags */
bzero(dlpbuf,DL_OK_ACK_SIZE);
if (getmsg(fd,&ctrl,NULL,&i) < 0)
goto dlpi_ret_hw;
if (dlpa->dl_primitive != DL_OK_ACK)
goto dlpi_ret_hw;
# endif /* DL_ATTACH_REQ */
bzero(&ctrl,sizeof(ctrl));
dlp.dl_primitive = DL_PHYS_ADDR_REQ;
dlp.physaddr_req.dl_addr_type = DL_CURR_PHYS_ADDR;
ctrl.buf = (char *)&dlp;
ctrl.len = DL_PHYS_ADDR_REQ_SIZE;
if (putmsg(fd,&ctrl,NULL,0) < 0)
goto dlpi_ret_hw;
ctrl.buf = (char *)&dlpbuf;
ctrl.len = 0;
ctrl.maxlen = DL_MAXIMUM;
i = RS_HIPRI; /* flags */
bzero(dlpbuf,DL_MAXIMUM);
if (getmsg(fd,&ctrl,NULL,&i) < 0)
goto dlpi_ret_hw;
if (dlpi->dl_primitive != DL_PHYS_ADDR_ACK)
goto dlpi_ret_hw;
/* have current MAC address, return it */
memcpy(ifr->ni_ifr_name,(dlpbuf + dlpp->dl_addr_offset),6);
dlpi_ret_hw:
close(fd);
return (unsigned char *)&ifr->ni_ifr_name[0];
dlpi_error:
close(fd);
#endif /* HAVE_SYS_DLPI_H */
hwaddr_error:
errno = ENOSYS;
return NULL;
}
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