usr/src/lib/libipmp/common/ipmp_admin.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  *
  21  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  22  * Use is subject to license terms.
  23  */
  24
  25 /*
  26  * IPMP administrative interfaces (see PSARC/2007/272).
  27  */
  28
  29 #include <assert.h>
  30 #include <errno.h>
  31 #include <string.h>
  32 #include <unistd.h>
  33 #include <sys/time.h>
  34 #include <sys/types.h>
  35
  36 #include "ipmp_impl.h"
  37 #include "ipmp_mpathd.h"
  38 #include "ipmp_admin.h"
  39
  40 static int
  41 ipmp_command(ipmp_handle_t handle, const void *req, uint_t reqsize)
  42 {
  43         ipmp_state_t    *statep = (ipmp_state_t *)handle;
  44         mi_result_t     result;
  45         struct timeval  end;
  46         int             save_errno;
  47         int             retval;
  48
  49         if (gettimeofday(&end, NULL) == -1)
  50                 return (IPMP_FAILURE);
  51         end.tv_sec += IPMP_REQTIMEOUT;
  52
  53         assert(statep->st_fd == -1);
  54         retval = ipmp_connect(&statep->st_fd);
  55         if (retval != IPMP_SUCCESS)
  56                 return (retval);
  57
  58         retval = ipmp_write(statep->st_fd, req, reqsize);
  59         if (retval != IPMP_SUCCESS)
  60                 goto out;
  61
  62         retval = ipmp_read(statep->st_fd, &result, sizeof (result), &end);
  63         if (retval != IPMP_SUCCESS)
  64                 goto out;
  65
  66         errno = result.me_sys_error;
  67         retval = result.me_mpathd_error;
  68 out:
  69         save_errno = errno;
  70         (void) close(statep->st_fd);
  71         statep->st_fd = -1;
  72         errno = save_errno;
  73         return (retval);
  74 }
  75
  76 int
  77 ipmp_offline(ipmp_handle_t handle, const char *ifname, uint_t minred)
  78 {
  79         mi_offline_t mio;
  80
  81         mio.mio_command = MI_OFFLINE;
  82         mio.mio_min_redundancy = minred;
  83         (void) strlcpy(mio.mio_ifname, ifname, LIFNAMSIZ);
  84         return (ipmp_command(handle, &mio, sizeof (mio)));
  85 }
  86
  87 int
  88 ipmp_undo_offline(ipmp_handle_t handle, const char *ifname)
  89 {
  90         mi_undo_offline_t miu;
  91
  92         miu.miu_command = MI_UNDO_OFFLINE;
  93         (void) strlcpy(miu.miu_ifname, ifname, LIFNAMSIZ);
  94         return (ipmp_command(handle, &miu, sizeof (miu)));
  95 }
  96
  97 int
  98 ipmp_ping_daemon(ipmp_handle_t handle)
  99 {
 100         mi_ping_t mip;
 101
 102         mip.mip_command = MI_PING;
 103         return (ipmp_command(handle, &mip, sizeof (mip)));
 104 }