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/* ******************************************************************** *
* ni_get_set.c version 0.01 2-8-09 *
* *
* COPYRIGHT 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"
/* **************************************************** *
* standard SIOCget functions *
* *
* execute supported ioctl's *
* where a value is requested, return it *
* otherwise it is up to the user to retrieve *
* information via their pointers *
* returns -1 on error, sets errno *
* **************************************************** */
int32_t
ni_get_any(int fd, int cmd, void * ifr)
{
switch (cmd) {
case SIOCGIFMTU :
case SIOCGIFMETRIC :
case SIOCGIFFLAGS :
#ifdef SIOCGIFINDEX
case SIOCGIFINDEX :
#endif
case SIOCGIFADDR :
case SIOCGIFNETMASK :
case SIOCGIFBRDADDR :
case SIOCGIFDSTADDR :
break;
default :
errno = ENOSYS;
return -1;
}
if (ioctl(fd,cmd,ifr) < 0)
return -1;
switch (cmd) {
case SIOCGIFFLAGS :
case SIOCGIFMETRIC :
case SIOCGIFMTU :
#ifdef SIOCGIFINDEX
case SIOCGIFINDEX :
#endif
return ((struct nifreq *)ifr)->ni_int;
}
return 0;
}
/* **************************************************** *
* standard SIOCset functions *
* *
* execute supported ioctl's *
* returns -1 on error, sets errno *
* *
* struct nifreq ifr should be prepared, for *
* add/modify of a Linux ipV6 address, the *
* PREFIX/CIDR value should be stored at: *
* *
* ifr->ni_sin6.sin6_port *
* *
* **************************************************** */
#if defined (__ni_Linux) && defined (LOCAL_SIZEOF_SOCKADDR_IN6)
struct lin6_ifreq {
struct in6_addr lin6_addr;
u_int32_t lin6_prfx;
u_int lin6_indx;
};
# endif
/* This routine must have ALL possible set commands
* Remember that ifr may need offset as is the case with LIFREQ
* Use with care. See $if->flags in Interface.xs
*/
int
ni_set_any(int fd, int cmd, struct nifreq * ifr)
{
#if defined (__ni_Linux) && defined (LOCAL_SIZEOF_SOCKADDR_IN6)
struct lin6_ifreq ifr6;
#endif
switch (cmd) {
case SIOCSIFFLAGS :
#ifdef SIOCSLIFFLAGS
case SIOCSLIFFLAGS :
#endif
case SIOCSIFMETRIC :
case SIOCSIFMTU :
break;
case SIOCSIFADDR :
case SIOCSIFDSTADDR :
case SIOCSIFBRDADDR :
case SIOCSIFNETMASK :
#ifdef SIOCDIFADDR
case SIOCDIFADDR :
#endif
#if defined (__ni_Linux) && defined (LOCAL_SIZEOF_SOCKADDR_IN6)
if (ifr->ni_saddr.sa_family == AF_INET6) {
memcpy(&ifr6.lin6_addr,&ifr->ni_sin6.sin6_addr,LOCAL_SIZEOF_SOCKADDR_IN6);
ifr6.lin6_prfx = ifr->ni_sin6.sin6_port; /* temporarily stored here */
if (ioctl(fd,SIOCGIFINDEX,&ifr) < 0)
return -1;
ifr6.lin6_indx = ifr->ni_ushort;
ifr = (struct nifreq *)&ifr6; /* lie about cast */
}
#endif
break;
default :
errno = ENOSYS;
return -1;
}
if (ioctl(fd,cmd,ifr) < 0)
return -1;
return 0;
}
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