Arthur de Jong

Open Source / Free Software developer

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-rw-r--r--ldap-ethers.c352
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diff --git a/ldap-ethers.c b/ldap-ethers.c
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+++ b/ldap-ethers.c
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+/* Copyright (C) 1997-2005 Luke Howard.
+ This file is part of the nss_ldap library.
+ Contributed by Luke Howard, <lukeh@padl.com>, 1997.
+
+ The nss_ldap library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The nss_ldap library 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 the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the nss_ldap library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+ $Id: ldap-ethers.c,v 2.36 2006/01/11 18:03:48 lukeh Exp $
+ */
+
+
+static char rcsId[] =
+ "$Id: ldap-ethers.c,v 2.36 2006/01/11 18:03:48 lukeh Exp $";
+
+#include "config.h"
+
+#ifdef HAVE_PORT_BEFORE_H
+#include <port_before.h>
+#endif
+
+#if defined(HAVE_THREAD_H) && !defined(_AIX)
+#include <thread.h>
+#elif defined(HAVE_PTHREAD_H)
+#include <pthread.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netdb.h>
+
+#ifdef HAVE_LBER_H
+#include <lber.h>
+#endif
+#ifdef HAVE_LDAP_H
+#include <ldap.h>
+#endif
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#ifdef HAVE_NET_ROUTE_H
+#include <net/route.h>
+#endif
+#include <net/if.h>
+#include <netinet/in.h>
+
+#ifdef HAVE_NETINET_IF_ETHER_H
+#include <netinet/if_ether.h>
+#endif
+
+#ifdef HAVE_NETINET_ETHER_H
+#include <netinet/ether.h>
+#endif
+
+#include "ldap-nss.h"
+#include "ldap-ethers.h"
+#include "util.h"
+
+#ifdef HAVE_PORT_AFTER_H
+#include <port_after.h>
+#endif
+
+#ifndef NSS_BUFLEN_ETHERS
+/* for HP-UX */
+#define NSS_BUFLEN_ETHERS 1024
+#endif /* NSS_BUFLEN_ETHERS */
+
+#if defined(HAVE_NSSWITCH_H) || defined(HAVE_NSS_H)
+
+#ifdef HAVE_NSSWITCH_H
+#ifdef HAVE_ETHER_ATON
+extern struct ether_addr *ether_aton (const char *s);
+#else
+static struct ether_addr *ether_aton (const char *s);
+#endif /* HAVE_ETHER_ATON */
+#ifdef HAVE_ETHER_NTOA
+extern char *ether_ntoa (const struct ether_addr *e);
+#else
+static char *ether_ntoa (const struct ether_addr *e);
+#endif /* HAVE_ETHER_NTOA */
+#endif /* HAVE_NSSWITCH_H */
+
+#ifdef HAVE_NSS_H
+static ent_context_t *ether_context = NULL;
+#endif
+
+static NSS_STATUS
+_nss_ldap_parse_ether (LDAPMessage * e,
+ ldap_state_t * pvt,
+ void *result, char *buffer, size_t buflen)
+{
+ struct ether *ether = (struct ether *) result;
+ char *saddr;
+ NSS_STATUS stat;
+ struct ether_addr *addr;
+
+ stat = _nss_ldap_assign_attrval (e, ATM (LM_ETHERS, cn),
+ &ether->e_name, &buffer, &buflen);
+ if (stat != NSS_SUCCESS)
+ return stat;
+
+ stat = _nss_ldap_assign_attrval (e, AT (macAddress), &saddr,
+ &buffer, &buflen);
+
+ if (stat != NSS_SUCCESS || ((addr = ether_aton (saddr)) == NULL))
+ return NSS_NOTFOUND;
+
+ memcpy (&ether->e_addr, addr, sizeof (*addr));
+
+ return NSS_SUCCESS;
+}
+
+#ifdef HAVE_NSSWITCH_H
+static NSS_STATUS
+_nss_ldap_gethostton_r (nss_backend_t * be, void *args)
+{
+ struct ether result;
+ ldap_args_t a;
+ char buffer[NSS_BUFLEN_ETHERS];
+ NSS_STATUS status;
+
+ LA_INIT (a);
+ LA_STRING (a) = NSS_ARGS (args)->key.name;
+ LA_TYPE (a) = LA_TYPE_STRING;
+
+ status = _nss_ldap_getbyname (&a,
+ &result,
+ buffer,
+ sizeof (buffer),
+ &NSS_ARGS (args)->erange,
+ _nss_ldap_filt_gethostton,
+ LM_ETHERS, _nss_ldap_parse_ether);
+
+ if (status == NSS_SUCCESS)
+ {
+ memcpy (NSS_ARGS (args)->buf.result, &result.e_addr,
+ sizeof (result.e_addr));
+ NSS_ARGS (args)->returnval = NSS_ARGS (args)->buf.result;
+ }
+
+ return status;
+}
+#elif defined(HAVE_NSS_H)
+NSS_STATUS
+_nss_ldap_gethostton_r (const char *name, struct ether * result,
+ char *buffer, size_t buflen, int *errnop)
+{
+ LOOKUP_NAME (name, result, buffer, buflen, errnop,
+ _nss_ldap_filt_gethostton, LM_ETHERS, _nss_ldap_parse_ether,
+ LDAP_NSS_BUFLEN_DEFAULT);
+}
+#endif
+
+#ifdef HAVE_NSSWITCH_H
+static NSS_STATUS
+_nss_ldap_getntohost_r (nss_backend_t * be, void *args)
+{
+ struct ether result;
+ char *addr;
+ ldap_args_t a;
+ char buffer[NSS_BUFLEN_ETHERS];
+ NSS_STATUS status;
+
+ addr = ether_ntoa ((struct ether_addr *) (NSS_ARGS (args)->key.ether));
+
+ LA_INIT (a);
+ LA_STRING (a) = addr;
+ LA_TYPE (a) = LA_TYPE_STRING;
+
+ status = _nss_ldap_getbyname (&a,
+ &result,
+ buffer,
+ sizeof (buffer),
+ &NSS_ARGS (args)->erange,
+ _nss_ldap_filt_getntohost,
+ LM_ETHERS, _nss_ldap_parse_ether);
+
+ if (status == NSS_SUCCESS)
+ {
+ memcpy (NSS_ARGS (args)->buf.buffer, result.e_name,
+ strlen (result.e_name) + 1);
+ NSS_ARGS (args)->returnval = NSS_ARGS (args)->buf.result =
+ NSS_ARGS (args)->buf.buffer;
+ NSS_ARGS (args)->buf.buflen = strlen (result.e_name);
+ }
+ else
+ {
+ NSS_ARGS (args)->returnval = NULL;
+ }
+
+ return status;
+}
+#elif defined(HAVE_NSS_H)
+NSS_STATUS
+_nss_ldap_getntohost_r (struct ether_addr * addr, struct ether * result,
+ char *buffer, size_t buflen, int *errnop)
+{
+/* The correct ether_ntoa call would have a struct ether instead of whatever
+ result->e_addr is */
+
+ LOOKUP_NAME (ether_ntoa ((struct ether_addr *) (&result->e_addr)), result,
+ buffer, buflen, errnop, _nss_ldap_filt_getntohost, LM_ETHERS,
+ _nss_ldap_parse_ether, LDAP_NSS_BUFLEN_DEFAULT);
+}
+#endif
+
+#ifdef HAVE_NSSWITCH_H
+static NSS_STATUS
+_nss_ldap_setetherent_r (nss_backend_t * ether_context, void *fakeargs)
+#elif defined(HAVE_NSS_H)
+ NSS_STATUS _nss_ldap_setetherent (void)
+#endif
+#if defined(HAVE_NSSWITCH_H) || defined(HAVE_NSS_H)
+{
+ LOOKUP_SETENT (ether_context);
+}
+#endif
+
+#ifdef HAVE_NSSWITCH_H
+static NSS_STATUS
+_nss_ldap_endetherent_r (nss_backend_t * ether_context, void *fakeargs)
+#elif defined(HAVE_NSS_H)
+ NSS_STATUS _nss_ldap_endetherent (void)
+#endif
+#if defined(HAVE_NSS_H) || defined(HAVE_NSSWITCH_H)
+{
+ LOOKUP_ENDENT (ether_context);
+}
+#endif
+
+#ifdef HAVE_NSSWITCH_H
+static NSS_STATUS
+_nss_ldap_getetherent_r (nss_backend_t * ether_context, void *args)
+{
+ struct ether result;
+ NSS_STATUS status;
+
+ status = _nss_ldap_getent (&((nss_ldap_backend_t *) ether_context)->state,
+ &result,
+ NSS_ARGS (args)->buf.buffer,
+ NSS_ARGS (args)->buf.buflen,
+ &NSS_ARGS (args)->erange,
+ _nss_ldap_filt_getetherent,
+ LM_ETHERS, _nss_ldap_parse_ether);
+
+ if (status == NSS_SUCCESS)
+ {
+ memcpy (NSS_ARGS (args)->buf.result, &result.e_addr,
+ sizeof (result.e_addr));
+ NSS_ARGS (args)->returnval = NSS_ARGS (args)->buf.result;
+ }
+ else
+ {
+ NSS_ARGS (args)->returnval = NULL;
+ }
+
+ return status;
+}
+#elif defined(HAVE_NSS_H)
+NSS_STATUS
+_nss_ldap_getetherent_r (struct ether * result, char *buffer, size_t buflen,
+ int *errnop)
+{
+ LOOKUP_GETENT (ether_context, result, buffer, buflen, errnop,
+ _nss_ldap_filt_getetherent, LM_ETHERS,
+ _nss_ldap_parse_ether, LDAP_NSS_BUFLEN_DEFAULT);
+}
+#endif
+
+#ifdef HAVE_NSSWITCH_H
+static NSS_STATUS
+_nss_ldap_ethers_destr (nss_backend_t * ether_context, void *args)
+{
+ return _nss_ldap_default_destr (ether_context, args);
+}
+
+static nss_backend_op_t ethers_ops[] = {
+ _nss_ldap_ethers_destr,
+ _nss_ldap_gethostton_r,
+ _nss_ldap_getntohost_r
+};
+
+nss_backend_t *
+_nss_ldap_ethers_constr (const char *db_name,
+ const char *src_name, const char *cfg_args)
+{
+ nss_ldap_backend_t *be;
+
+ if (!(be = (nss_ldap_backend_t *) malloc (sizeof (*be))))
+ return NULL;
+
+ be->ops = ethers_ops;
+ be->n_ops = sizeof (ethers_ops) / sizeof (nss_backend_op_t);
+
+ if (_nss_ldap_default_constr (be) != NSS_SUCCESS)
+ return NULL;
+
+ return (nss_backend_t *) be;
+
+}
+
+#endif /* !HAVE_NSS_H */
+
+#ifdef HAVE_NSSWITCH_H
+
+#ifndef HAVE_ETHER_ATON
+static struct ether_addr *ether_aton (const char *s)
+{
+ static struct ether_addr ep;
+ register int i;
+ unsigned int t[6];
+
+ i = sscanf(s, " %x:%x:%x:%x:%x:%x",
+ &t[0], &t[1], &t[2], &t[3], &t[4], &t[5]);
+ if (i != 6)
+ return NULL;
+ for (i = 0; i < 6; i++)
+ ep.ether_addr_octet[i] = t[i];
+
+ return &ep;
+}
+#endif /* !HAVE_ETHER_ATON */
+
+#ifndef HAVE_ETHER_NTOA
+#define EI(i) (unsigned int)(e->ether_addr_octet[(i)])
+static char *ether_ntoa (const struct ether_addr *e)
+{
+ static char s[18];
+
+ s[0] = 0;
+ sprintf(s, "%x:%x:%x:%x:%x:%x",
+ EI(0), EI(1), EI(2), EI(3), EI(4), EI(5));
+
+ return s;
+}
+#endif /* !HAVE_ETHER_NTOA */
+
+#endif /* HAVE_NSSWITCH_H */
+
+#endif /* !HAVE_IRS_H */