1 /* $NetBSD: mount_aix.c,v 1.1.1.3 2015/01/17 16:34:16 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2014 Erez Zadok 5 * Copyright (c) 1990 Jan-Simon Pendry 6 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine 7 * Copyright (c) 1990 The Regents of the University of California. 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * Jan-Simon Pendry at Imperial College, London. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * 38 * File: am-utils/conf/mount/mount_aix.c 39 * 40 */ 41 42 /* 43 * AIX 5.x Mount helper 44 */ 45 46 #ifdef HAVE_CONFIG_H 47 # include <config.h> 48 #endif /* HAVE_CONFIG_H */ 49 #include <am_defs.h> 50 #include <amu.h> 51 52 #define VMT_ROUNDUP(len) (4 * ((len + 3) / 4)) 53 #define VMT_ASSIGN(vp, idx, data, size) \ 54 vp->vmt_data[idx].vmt_off = p - (char *) vp; \ 55 vp->vmt_data[idx].vmt_size = size; \ 56 memmove(p, data, size); \ 57 p += VMT_ROUNDUP(size); 58 59 /* missing external definitions from AIX's headers */ 60 extern int vmount(struct vmount *vmount, int size); 61 62 63 static int 64 aix5_mkvp(char *p, int gfstype, int flags, char *object, char *stub, char *host, char *info, int info_size, char *args) 65 { 66 struct vmount *vp = (struct vmount *) p; 67 68 memset((voidp) vp, 0, sizeof(*vp)); 69 /* 70 * Fill in standard fields 71 */ 72 vp->vmt_revision = VMT_REVISION; 73 vp->vmt_flags = flags; 74 vp->vmt_gfstype = gfstype; 75 76 /* 77 * Fill in all variable length data 78 */ 79 p += sizeof(*vp); 80 81 VMT_ASSIGN(vp, VMT_OBJECT, object, strlen(object) + 1); 82 VMT_ASSIGN(vp, VMT_STUB, stub, strlen(stub) + 1); 83 VMT_ASSIGN(vp, VMT_HOST, host, strlen(host) + 1); 84 VMT_ASSIGN(vp, VMT_HOSTNAME, host, strlen(host) + 1); 85 VMT_ASSIGN(vp, VMT_INFO, info, info_size); 86 VMT_ASSIGN(vp, VMT_ARGS, args, strlen(args) + 1); 87 88 /* 89 * Return length 90 */ 91 return vp->vmt_length = p - (char *) vp; 92 } 93 94 95 /* 96 * Map from conventional mount arguments to AIX 3,x style arguments. 97 * But we avoid all the messy BIS stuff for AIX 5.x 98 */ 99 int 100 mount_aix3(char *fsname, char *dir, int flags, int type, void *data, char *mnt_opts) 101 { 102 char buf[4096]; 103 int size, ret; 104 int real_size = sizeof(nfs_args_t); /* size passed to aix5_mkvp() */ 105 char *real_args = data; /* args passed to aix5_mkvp() */ 106 char *host, *rfs, *idx; 107 int aix_type = type; 108 #ifdef HAVE_FS_NFS3 109 struct nfs_args v2args; 110 nfs_args_t *v3args = (nfs_args_t *) data; 111 #endif /* HAVE_FS_NFS3 */ 112 113 #ifdef DEBUG 114 dlog("mount_aix3: fsname %s, dir %s, type %d", fsname, dir, type); 115 #endif /* DEBUG */ 116 117 switch (aix_type) { 118 119 case MOUNT_TYPE_NFS: 120 121 #ifdef HAVE_FS_NFS3 122 /* 123 * This is tricky. If we have v3 support, but this nfs mount is v2, 124 * then I must copy the arguments from the v3 nfs_args to the v2 one. 125 */ 126 memmove((voidp) &v2args.addr, (voidp) &v3args->addr, sizeof(struct sockaddr_in)); 127 v2args.hostname = v3args->hostname; 128 v2args.netname = v3args->netname; 129 memmove((voidp) v2args.fh.x, v3args->fh, FHSIZE); 130 v2args.flags = v3args->flags; 131 v2args.wsize = v3args->wsize; 132 v2args.rsize = v3args->rsize; 133 v2args.timeo = v3args->timeo; 134 v2args.retrans = v3args->retrans; 135 v2args.acregmin = v3args->acregmin; 136 v2args.acregmax = v3args->acregmax; 137 v2args.acdirmin = v3args->acdirmin; 138 v2args.acdirmax = v3args->acdirmax; 139 v2args.pathconf = v3args->pathconf; 140 141 /* now set real_* stuff */ 142 real_size = sizeof(v2args); 143 real_args = (char *) &v2args; 144 145 case MOUNT_TYPE_NFS3: 146 #endif /* HAVE_FS_NFS3 */ 147 148 idx = strchr(fsname, ':'); 149 if (idx) { 150 *idx = '\0'; 151 rfs = xstrdup(idx + 1); 152 host = xstrdup(fsname); 153 *idx = ':'; 154 } else { 155 rfs = xstrdup(fsname); 156 host = xstrdup(am_get_hostname()); 157 } 158 159 size = aix5_mkvp(buf, type, flags, rfs, dir, host, 160 real_args, real_size, mnt_opts); 161 XFREE(rfs); 162 XFREE(host); 163 break; 164 165 case MOUNT_TYPE_UFS: 166 /* Need to open block device and extract log device info from sblk. */ 167 return EINVAL; 168 169 default: 170 return EINVAL; 171 } 172 173 /* 174 * XXX: Warning, if vmount() hangs your amd in AIX 5.1, it 175 * is because of a kernel bug in the NFS code. Get a patch from IBM 176 * or upgrade to 5.2. 177 */ 178 ret = vmount((struct vmount *)buf, size); 179 if (ret < 0) { 180 plog(XLOG_ERROR, "mount_aix3: vmount failed with errno %d", errno); 181 perror ("vmount"); 182 } 183 return ret; 184 } 185