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/*
* Copyright (C) 1999-2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: interfaceiter.c,v 1.27 2002/07/02 05:51:43 marka Exp $ */
#include <config.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#ifdef HAVE_SYS_SOCKIO_H
#include <sys/sockio.h> /* Required for ifiter_ioctl.c. */
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <isc/interfaceiter.h>
#include <isc/magic.h>
#include <isc/mem.h>
#include <isc/msgs.h>
#include <isc/net.h>
#include <isc/result.h>
#include <isc/strerror.h>
#include <isc/string.h>
#include <isc/types.h>
#include <isc/util.h>
/* Must follow <isc/net.h>. */
#ifdef HAVE_NET_IF6_H
#include <net/if6.h>
#endif
#include <net/if.h>
/* Common utility functions */
/*
* Extract the network address part from a "struct sockaddr".
*
* The address family is given explicity
* instead of using src->sa_family, because the latter does not work
* for copying a network mask obtained by SIOCGIFNETMASK (it does
* not have a valid address family).
*/
static void
get_addr(unsigned int family, isc_netaddr_t *dst, struct sockaddr *src) {
dst->family = family;
switch (family) {
case AF_INET:
memcpy(&dst->type.in,
&((struct sockaddr_in *) src)->sin_addr,
sizeof(struct in_addr));
break;
case AF_INET6:
memcpy(&dst->type.in6,
&((struct sockaddr_in6 *) src)->sin6_addr,
sizeof(struct in6_addr));
break;
default:
INSIST(0);
break;
}
}
/*
* Include system-dependent code.
*/
#if HAVE_IFLIST_SYSCTL
#include "ifiter_sysctl.c"
#else
#include "ifiter_ioctl.c"
#endif
/*
* The remaining code is common to the sysctl and ioctl case.
*/
isc_result_t
isc_interfaceiter_current(isc_interfaceiter_t *iter,
isc_interface_t *ifdata)
{
REQUIRE(iter->result == ISC_R_SUCCESS);
memcpy(ifdata, &iter->current, sizeof(*ifdata));
return (ISC_R_SUCCESS);
}
isc_result_t
isc_interfaceiter_first(isc_interfaceiter_t *iter) {
isc_result_t result;
REQUIRE(VALID_IFITER(iter));
iter->pos = 0;
#ifdef HAVE_TRUCLUSTER
iter->clua_context = 0;
#endif
for (;;) {
result = internal_current(iter);
if (result != ISC_R_IGNORE)
break;
result = internal_next(iter);
if (result != ISC_R_SUCCESS)
break;
}
iter->result = result;
return (result);
}
isc_result_t
isc_interfaceiter_next(isc_interfaceiter_t *iter) {
isc_result_t result;
REQUIRE(VALID_IFITER(iter));
REQUIRE(iter->result == ISC_R_SUCCESS);
for (;;) {
result = internal_next(iter);
if (result != ISC_R_SUCCESS)
break;
result = internal_current(iter);
if (result != ISC_R_IGNORE)
break;
}
iter->result = result;
return (result);
}
void
isc_interfaceiter_destroy(isc_interfaceiter_t **iterp)
{
isc_interfaceiter_t *iter;
REQUIRE(iterp != NULL);
iter = *iterp;
REQUIRE(VALID_IFITER(iter));
internal_destroy(iter);
isc_mem_put(iter->mctx, iter->buf, iter->bufsize);
iter->magic = 0;
isc_mem_put(iter->mctx, iter, sizeof(*iter));
*iterp = NULL;
}
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