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 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <sys/types.h> 27 #include <sys/ddi.h> 28 #include <sys/modctl.h> 29 #include <sys/cred.h> 30 #include <sys/ioccom.h> 31 #include <sys/policy.h> 32 #include <sys/cmn_err.h> 33 #include <smbsrv/smb_incl.h> 34 #include <smbsrv/smb_door_svc.h> 35 #include <smbsrv/smb_ioctl.h> 36 #include <smbsrv/smb_kproto.h> 37 38 static int smb_drv_open(dev_t *, int, int, cred_t *); 39 static int smb_drv_close(dev_t, int, int, cred_t *); 40 static int smb_drv_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 41 static int smb_drv_attach(dev_info_t *, ddi_attach_cmd_t); 42 static int smb_drv_detach(dev_info_t *, ddi_detach_cmd_t); 43 static int smb_drv_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); 44 45 /* 46 * ***************************************************************************** 47 * ****************************** Global Variables ***************************** 48 * ***************************************************************************** 49 * 50 * These variables can only be changed through the /etc/system file. 51 */ 52 53 /* 54 * Maximum buffer size for NT: configurable based on the client environment. 55 * IR104720 Experiments with Windows 2000 indicate that we achieve better 56 * SmbWriteX performance with a buffer size of 64KB instead of the 37KB used 57 * with Windows NT4.0. Previous experiments with NT4.0 resulted in directory 58 * listing problems so this buffer size is configurable based on the end-user 59 * environment. When in doubt use 37KB. 60 */ 61 int smb_maxbufsize = SMB_NT_MAXBUF; 62 int smb_oplock_timeout = OPLOCK_STD_TIMEOUT; 63 int smb_flush_required = 1; 64 int smb_dirsymlink_enable = 1; 65 int smb_announce_quota = 0; 66 int smb_sign_debug = 0; 67 uint_t smb_audit_flags = 68 #ifdef DEBUG 69 SMB_AUDIT_NODE; 70 #else 71 0; 72 #endif 73 74 /* 75 * ***************************************************************************** 76 * ********************** Static Variables / Module Linkage ******************** 77 * ***************************************************************************** 78 */ 79 80 static struct cb_ops cbops = { 81 smb_drv_open, /* cb_open */ 82 smb_drv_close, /* cb_close */ 83 nodev, /* cb_strategy */ 84 nodev, /* cb_print */ 85 nodev, /* cb_dump */ 86 nodev, /* cb_read */ 87 nodev, /* cb_write */ 88 smb_drv_ioctl, /* cb_ioctl */ 89 nodev, /* cb_devmap */ 90 nodev, /* cb_mmap */ 91 nodev, /* cb_segmap */ 92 nochpoll, /* cb_chpoll */ 93 ddi_prop_op, /* cb_prop_op */ 94 NULL, /* cb_streamtab */ 95 D_MP, /* cb_flag */ 96 CB_REV, /* cb_rev */ 97 nodev, /* cb_aread */ 98 nodev, /* cb_awrite */ 99 }; 100 101 static struct dev_ops devops = { 102 DEVO_REV, /* devo_rev */ 103 0, /* devo_refcnt */ 104 smb_drv_getinfo, /* devo_getinfo */ 105 nulldev, /* devo_identify */ 106 nulldev, /* devo_probe */ 107 smb_drv_attach, /* devo_attach */ 108 smb_drv_detach, /* devo_detach */ 109 nodev, /* devo_reset */ 110 &cbops, /* devo_cb_ops */ 111 NULL, /* devo_bus_ops */ 112 NULL, /* devo_power */ 113 ddi_quiesce_not_needed, /* devo_quiesce */ 114 }; 115 116 static struct modldrv modldrv = { 117 &mod_driverops, /* drv_modops */ 118 "CIFS Server Protocol", /* drv_linkinfo */ 119 &devops, 120 }; 121 122 static struct modlinkage modlinkage = { 123 MODREV_1, /* revision of the module, must be: MODREV_1 */ 124 &modldrv, /* ptr to linkage structures */ 125 NULL, 126 }; 127 128 static dev_info_t *smb_drv_dip = NULL; 129 130 /* 131 * **************************************************************************** 132 * Module Interface 133 * **************************************************************************** 134 */ 135 136 int 137 _init(void) 138 { 139 int rc; 140 141 rc = smb_server_svc_init(); 142 if (rc == 0) { 143 rc = mod_install(&modlinkage); 144 if (rc != 0) 145 (void) smb_server_svc_fini(); 146 } 147 return (rc); 148 } 149 150 int 151 _info(struct modinfo *modinfop) 152 { 153 return (mod_info(&modlinkage, modinfop)); 154 } 155 156 int 157 _fini(void) 158 { 159 int rc; 160 161 rc = mod_remove(&modlinkage); 162 if (rc == 0) 163 rc = smb_server_svc_fini(); 164 return (rc); 165 } 166 167 /* 168 * **************************************************************************** 169 * Pseudo Device Entry Points 170 * **************************************************************************** 171 */ 172 /* ARGSUSED */ 173 static int 174 smb_drv_open(dev_t *devp, int flag, int otyp, cred_t *credp) 175 { 176 /* 177 * Check caller's privileges. 178 */ 179 if (secpolicy_smb(credp) != 0) 180 return (EPERM); 181 182 /* 183 * Start SMB service state machine 184 */ 185 return (smb_server_create()); 186 } 187 188 /* ARGSUSED */ 189 static int 190 smb_drv_close(dev_t dev, int flag, int otyp, cred_t *credp) 191 { 192 return (smb_server_delete()); 193 } 194 195 /* ARGSUSED */ 196 static int 197 smb_drv_ioctl(dev_t drv, int cmd, intptr_t argp, int flags, cred_t *cred, 198 int *retval) 199 { 200 smb_ioc_t *ioc; 201 smb_ioc_header_t ioc_hdr; 202 uint32_t crc; 203 boolean_t copyout = B_FALSE; 204 int rc = 0; 205 206 if (ddi_copyin((const void *)argp, &ioc_hdr, sizeof (smb_ioc_header_t), 207 flags) || (ioc_hdr.version != SMB_IOC_VERSION)) 208 return (EFAULT); 209 210 crc = ioc_hdr.crc; 211 ioc_hdr.crc = 0; 212 if (smb_crc_gen((uint8_t *)&ioc_hdr, sizeof (ioc_hdr)) != crc) 213 return (EFAULT); 214 215 ioc = kmem_alloc(ioc_hdr.len, KM_SLEEP); 216 if (ddi_copyin((const void *)argp, ioc, ioc_hdr.len, flags)) { 217 kmem_free(ioc, ioc_hdr.len); 218 return (EFAULT); 219 } 220 221 switch (cmd) { 222 case SMB_IOC_CONFIG: 223 rc = smb_server_configure(&ioc->ioc_cfg); 224 break; 225 case SMB_IOC_START: 226 rc = smb_server_start(&ioc->ioc_start); 227 break; 228 case SMB_IOC_NBT_LISTEN: 229 rc = smb_server_nbt_listen(&ioc->ioc_listen); 230 break; 231 case SMB_IOC_TCP_LISTEN: 232 rc = smb_server_tcp_listen(&ioc->ioc_listen); 233 break; 234 case SMB_IOC_NBT_RECEIVE: 235 rc = smb_server_nbt_receive(); 236 break; 237 case SMB_IOC_TCP_RECEIVE: 238 rc = smb_server_tcp_receive(); 239 break; 240 case SMB_IOC_GMTOFF: 241 rc = smb_server_set_gmtoff(&ioc->ioc_gmt); 242 break; 243 case SMB_IOC_SHARE: 244 rc = smb_server_share_export(&ioc->ioc_share); 245 break; 246 case SMB_IOC_UNSHARE: 247 rc = smb_server_share_unexport(&ioc->ioc_share); 248 break; 249 case SMB_IOC_USER_NUMBER: 250 rc = smb_server_user_number(&ioc->ioc_unum); 251 copyout = B_TRUE; 252 break; 253 case SMB_IOC_USER_LIST: 254 rc = smb_server_user_list(&ioc->ioc_ulist); 255 copyout = B_TRUE; 256 break; 257 default: 258 rc = ENOTTY; 259 break; 260 } 261 if ((rc == 0) && copyout) { 262 if (ddi_copyout((const void *)ioc, (void *)argp, ioc_hdr.len, 263 flags)) 264 rc = EFAULT; 265 } 266 kmem_free(ioc, ioc_hdr.len); 267 return (rc); 268 } 269 270 /* 271 * **************************************************************************** 272 * Pseudo Device Operations 273 * **************************************************************************** 274 */ 275 static int 276 smb_drv_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 277 { 278 if (cmd == DDI_ATTACH) { 279 /* we only allow instance 0 to attach */ 280 if (ddi_get_instance(dip) == 0) { 281 /* create the minor node */ 282 if (ddi_create_minor_node(dip, "smbsrv", S_IFCHR, 0, 283 DDI_PSEUDO, 0) == DDI_SUCCESS) { 284 smb_drv_dip = dip; 285 return (DDI_SUCCESS); 286 } else { 287 cmn_err(CE_WARN, "smb_drv_attach:" 288 " failed creating minor node"); 289 } 290 } 291 } 292 return (DDI_FAILURE); 293 } 294 295 static int 296 smb_drv_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 297 { 298 if (cmd == DDI_DETACH) { 299 ASSERT(dip == smb_drv_dip); 300 ddi_remove_minor_node(dip, NULL); 301 smb_drv_dip = NULL; 302 return (DDI_SUCCESS); 303 } 304 return (DDI_FAILURE); 305 } 306 307 /* ARGSUSED */ 308 static int 309 smb_drv_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) 310 { 311 ulong_t instance = getminor((dev_t)arg); 312 313 switch (cmd) { 314 case DDI_INFO_DEVT2DEVINFO: 315 *result = smb_drv_dip; 316 return (DDI_SUCCESS); 317 318 case DDI_INFO_DEVT2INSTANCE: 319 *result = (void *)instance; 320 return (DDI_SUCCESS); 321 322 default: 323 break; 324 } 325 326 return (DDI_FAILURE); 327 } 328