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Diffstat (limited to 'contrib/bind9/lib/isc/unix/ifiter_sysctl.c')
-rw-r--r--contrib/bind9/lib/isc/unix/ifiter_sysctl.c301
1 files changed, 0 insertions, 301 deletions
diff --git a/contrib/bind9/lib/isc/unix/ifiter_sysctl.c b/contrib/bind9/lib/isc/unix/ifiter_sysctl.c
deleted file mode 100644
index b10a2d2090f0..000000000000
--- a/contrib/bind9/lib/isc/unix/ifiter_sysctl.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC")
- * Copyright (C) 1999-2003 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 ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL ISC 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: ifiter_sysctl.c,v 1.14.12.9 2005/03/17 03:58:33 marka Exp $ */
-
-/*
- * Obtain the list of network interfaces using sysctl.
- * See TCP/IP Illustrated Volume 2, sections 19.8, 19.14,
- * and 19.16.
- */
-
-#include <sys/param.h>
-#include <sys/sysctl.h>
-
-#include <net/route.h>
-#include <net/if_dl.h>
-
-/* XXX what about Alpha? */
-#ifdef sgi
-#define ROUNDUP(a) ((a) > 0 ? \
- (1 + (((a) - 1) | (sizeof(__uint64_t) - 1))) : \
- sizeof(__uint64_t))
-#else
-#define ROUNDUP(a) ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) \
- : sizeof(long))
-#endif
-
-#define IFITER_MAGIC ISC_MAGIC('I', 'F', 'I', 'S')
-#define VALID_IFITER(t) ISC_MAGIC_VALID(t, IFITER_MAGIC)
-
-struct isc_interfaceiter {
- unsigned int magic; /* Magic number. */
- isc_mem_t *mctx;
- void *buf; /* Buffer for sysctl data. */
- unsigned int bufsize; /* Bytes allocated. */
- unsigned int bufused; /* Bytes used. */
- unsigned int pos; /* Current offset in
- sysctl data. */
- isc_interface_t current; /* Current interface data. */
- isc_result_t result; /* Last result code. */
-};
-
-static int mib[6] = {
- CTL_NET,
- PF_ROUTE,
- 0,
- 0, /* Any address family. */
- NET_RT_IFLIST,
- 0 /* Flags. */
-};
-
-isc_result_t
-isc_interfaceiter_create(isc_mem_t *mctx, isc_interfaceiter_t **iterp) {
- isc_interfaceiter_t *iter;
- isc_result_t result;
- size_t bufsize;
- size_t bufused;
- char strbuf[ISC_STRERRORSIZE];
-
- REQUIRE(mctx != NULL);
- REQUIRE(iterp != NULL);
- REQUIRE(*iterp == NULL);
-
- iter = isc_mem_get(mctx, sizeof(*iter));
- if (iter == NULL)
- return (ISC_R_NOMEMORY);
-
- iter->mctx = mctx;
- iter->buf = 0;
-
- /*
- * Determine the amount of memory needed.
- */
- bufsize = 0;
- if (sysctl(mib, 6, NULL, &bufsize, NULL, (size_t) 0) < 0) {
- isc__strerror(errno, strbuf, sizeof(strbuf));
- UNEXPECTED_ERROR(__FILE__, __LINE__,
- isc_msgcat_get(isc_msgcat,
- ISC_MSGSET_IFITERSYSCTL,
- ISC_MSG_GETIFLISTSIZE,
- "getting interface "
- "list size: sysctl: %s"),
- strbuf);
- result = ISC_R_UNEXPECTED;
- goto failure;
- }
- iter->bufsize = bufsize;
-
- iter->buf = isc_mem_get(iter->mctx, iter->bufsize);
- if (iter->buf == NULL) {
- result = ISC_R_NOMEMORY;
- goto failure;
- }
-
- bufused = bufsize;
- if (sysctl(mib, 6, iter->buf, &bufused, NULL, (size_t) 0) < 0) {
- isc__strerror(errno, strbuf, sizeof(strbuf));
- UNEXPECTED_ERROR(__FILE__, __LINE__,
- isc_msgcat_get(isc_msgcat,
- ISC_MSGSET_IFITERSYSCTL,
- ISC_MSG_GETIFLIST,
- "getting interface list: "
- "sysctl: %s"),
- strbuf);
- result = ISC_R_UNEXPECTED;
- goto failure;
- }
- iter->bufused = bufused;
- INSIST(iter->bufused <= iter->bufsize);
-
- /*
- * A newly created iterator has an undefined position
- * until isc_interfaceiter_first() is called.
- */
- iter->pos = (unsigned int) -1;
- iter->result = ISC_R_FAILURE;
-
- iter->magic = IFITER_MAGIC;
- *iterp = iter;
- return (ISC_R_SUCCESS);
-
- failure:
- if (iter->buf != NULL)
- isc_mem_put(mctx, iter->buf, iter->bufsize);
- isc_mem_put(mctx, iter, sizeof(*iter));
- return (result);
-}
-
-/*
- * Get information about the current interface to iter->current.
- * If successful, return ISC_R_SUCCESS.
- * If the interface has an unsupported address family,
- * return ISC_R_IGNORE. In case of other failure,
- * return ISC_R_UNEXPECTED.
- */
-
-static isc_result_t
-internal_current(isc_interfaceiter_t *iter) {
- struct ifa_msghdr *ifam, *ifam_end;
-
- REQUIRE(VALID_IFITER(iter));
- REQUIRE (iter->pos < (unsigned int) iter->bufused);
-
- ifam = (struct ifa_msghdr *) ((char *) iter->buf + iter->pos);
- ifam_end = (struct ifa_msghdr *) ((char *) iter->buf + iter->bufused);
-
- if (ifam->ifam_type == RTM_IFINFO) {
- struct if_msghdr *ifm = (struct if_msghdr *) ifam;
- struct sockaddr_dl *sdl = (struct sockaddr_dl *) (ifm + 1);
- unsigned int namelen;
-
- memset(&iter->current, 0, sizeof(iter->current));
-
- namelen = sdl->sdl_nlen;
- if (namelen > sizeof(iter->current.name) - 1)
- namelen = sizeof(iter->current.name) - 1;
-
- memset(iter->current.name, 0, sizeof(iter->current.name));
- memcpy(iter->current.name, sdl->sdl_data, namelen);
-
- iter->current.flags = 0;
-
- if ((ifam->ifam_flags & IFF_UP) != 0)
- iter->current.flags |= INTERFACE_F_UP;
-
- if ((ifam->ifam_flags & IFF_POINTOPOINT) != 0)
- iter->current.flags |= INTERFACE_F_POINTTOPOINT;
-
- if ((ifam->ifam_flags & IFF_LOOPBACK) != 0)
- iter->current.flags |= INTERFACE_F_LOOPBACK;
-
- /*
- * This is not an interface address.
- * Force another iteration.
- */
- return (ISC_R_IGNORE);
- } else if (ifam->ifam_type == RTM_NEWADDR) {
- int i;
- int family;
- struct sockaddr *mask_sa = NULL;
- struct sockaddr *addr_sa = NULL;
- struct sockaddr *dst_sa = NULL;
-
- struct sockaddr *sa = (struct sockaddr *)(ifam + 1);
- family = sa->sa_family;
-
- for (i = 0; i < RTAX_MAX; i++)
- {
- if ((ifam->ifam_addrs & (1 << i)) == 0)
- continue;
-
- INSIST(sa < (struct sockaddr *) ifam_end);
-
- switch (i) {
- case RTAX_NETMASK: /* Netmask */
- mask_sa = sa;
- break;
- case RTAX_IFA: /* Interface address */
- addr_sa = sa;
- break;
- case RTAX_BRD: /* Broadcast or destination address */
- dst_sa = sa;
- break;
- }
-#ifdef ISC_PLATFORM_HAVESALEN
- sa = (struct sockaddr *)((char*)(sa)
- + ROUNDUP(sa->sa_len));
-#else
-#ifdef sgi
- /*
- * Do as the contributed SGI code does.
- */
- sa = (struct sockaddr *)((char*)(sa)
- + ROUNDUP(_FAKE_SA_LEN_DST(sa)));
-#else
- /* XXX untested. */
- sa = (struct sockaddr *)((char*)(sa)
- + ROUNDUP(sizeof(struct sockaddr)));
-#endif
-#endif
- }
-
- if (addr_sa == NULL)
- return (ISC_R_IGNORE);
-
- family = addr_sa->sa_family;
- if (family != AF_INET && family != AF_INET6)
- return (ISC_R_IGNORE);
-
- iter->current.af = family;
-
- get_addr(family, &iter->current.address, addr_sa,
- iter->current.name);
-
- if (mask_sa != NULL)
- get_addr(family, &iter->current.netmask, mask_sa,
- iter->current.name);
-
- if (dst_sa != NULL &&
- (iter->current.flags & INTERFACE_F_POINTTOPOINT) != 0)
- get_addr(family, &iter->current.dstaddress, dst_sa,
- iter->current.name);
-
- return (ISC_R_SUCCESS);
- } else {
- printf(isc_msgcat_get(isc_msgcat, ISC_MSGSET_IFITERSYSCTL,
- ISC_MSG_UNEXPECTEDTYPE,
- "warning: unexpected interface list "
- "message type\n"));
- return (ISC_R_IGNORE);
- }
-}
-
-/*
- * Step the iterator to the next interface. Unlike
- * isc_interfaceiter_next(), this may leave the iterator
- * positioned on an interface that will ultimately
- * be ignored. Return ISC_R_NOMORE if there are no more
- * interfaces, otherwise ISC_R_SUCCESS.
- */
-static isc_result_t
-internal_next(isc_interfaceiter_t *iter) {
- struct ifa_msghdr *ifam;
- REQUIRE (iter->pos < (unsigned int) iter->bufused);
-
- ifam = (struct ifa_msghdr *) ((char *) iter->buf + iter->pos);
-
- iter->pos += ifam->ifam_msglen;
-
- if (iter->pos >= iter->bufused)
- return (ISC_R_NOMORE);
-
- return (ISC_R_SUCCESS);
-}
-
-static void
-internal_destroy(isc_interfaceiter_t *iter) {
- UNUSED(iter); /* Unused. */
- /*
- * Do nothing.
- */
-}
-
-static
-void internal_first(isc_interfaceiter_t *iter) {
- iter->pos = 0;
-}
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