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 2008 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 clock_t 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 68 /* 69 * ***************************************************************************** 70 * ********************** Static Variables / Module Linkage ******************** 71 * ***************************************************************************** 72 */ 73 74 static struct cb_ops cbops = { 75 smb_drv_open, /* cb_open */ 76 smb_drv_close, /* cb_close */ 77 nodev, /* cb_strategy */ 78 nodev, /* cb_print */ 79 nodev, /* cb_dump */ 80 nodev, /* cb_read */ 81 nodev, /* cb_write */ 82 smb_drv_ioctl, /* cb_ioctl */ 83 nodev, /* cb_devmap */ 84 nodev, /* cb_mmap */ 85 nodev, /* cb_segmap */ 86 nochpoll, /* cb_chpoll */ 87 ddi_prop_op, /* cb_prop_op */ 88 NULL, /* cb_streamtab */ 89 D_MP, /* cb_flag */ 90 CB_REV, /* cb_rev */ 91 nodev, /* cb_aread */ 92 nodev, /* cb_awrite */ 93 }; 94 95 static struct dev_ops devops = { 96 DEVO_REV, /* devo_rev */ 97 0, /* devo_refcnt */ 98 smb_drv_getinfo, /* devo_getinfo */ 99 nulldev, /* devo_identify */ 100 nulldev, /* devo_probe */ 101 smb_drv_attach, /* devo_attach */ 102 smb_drv_detach, /* devo_detach */ 103 nodev, /* devo_reset */ 104 &cbops, /* devo_cb_ops */ 105 NULL, /* devo_bus_ops */ 106 NULL, /* devo_power */ 107 ddi_quiesce_not_needed, /* devo_quiesce */ 108 }; 109 110 static struct modldrv modldrv = { 111 &mod_driverops, /* drv_modops */ 112 "CIFS Server Protocol", /* drv_linkinfo */ 113 &devops, 114 }; 115 116 static struct modlinkage modlinkage = { 117 MODREV_1, /* revision of the module, must be: MODREV_1 */ 118 &modldrv, /* ptr to linkage structures */ 119 NULL, 120 }; 121 122 static dev_info_t *smb_drv_dip = NULL; 123 124 /* 125 * **************************************************************************** 126 * Module Interface 127 * **************************************************************************** 128 */ 129 130 int 131 _init(void) 132 { 133 return (mod_install(&modlinkage)); 134 } 135 136 int 137 _info(struct modinfo *modinfop) 138 { 139 return (mod_info(&modlinkage, modinfop)); 140 } 141 142 int 143 _fini(void) 144 { 145 return (mod_remove(&modlinkage)); 146 } 147 148 /* 149 * **************************************************************************** 150 * Pseudo Device Entry Points 151 * **************************************************************************** 152 */ 153 /* ARGSUSED */ 154 static int 155 smb_drv_open(dev_t *devp, int flag, int otyp, cred_t *credp) 156 { 157 /* 158 * Check caller's privileges. 159 */ 160 if (secpolicy_smb(credp) != 0) 161 return (EPERM); 162 163 /* 164 * Start SMB service state machine 165 */ 166 return (smb_server_create()); 167 } 168 169 /* ARGSUSED */ 170 static int 171 smb_drv_close(dev_t dev, int flag, int otyp, cred_t *credp) 172 { 173 return (smb_server_delete()); 174 } 175 176 /* ARGSUSED */ 177 static int 178 smb_drv_ioctl(dev_t drv, int cmd, intptr_t argp, int flag, cred_t *cred, 179 int *retval) 180 { 181 int rc = 0; 182 smb_io_t smb_io; 183 uint32_t crc1; 184 uint32_t crc2; 185 186 if (ddi_copyin((smb_io_t *)argp, &smb_io, sizeof (smb_io), flag) || 187 (smb_io.sio_version != SMB_IOC_VERSION)) 188 return (EFAULT); 189 190 crc1 = smb_io.sio_crc; 191 smb_io.sio_crc = 0; 192 crc2 = smb_crc_gen((uint8_t *)&smb_io, sizeof (smb_io_t)); 193 194 if (crc1 != crc2) 195 return (EFAULT); 196 197 switch (cmd) { 198 case SMB_IOC_CONFIG: 199 rc = smb_server_configure(&smb_io.sio_data.cfg); 200 break; 201 case SMB_IOC_START: 202 rc = smb_server_start(&smb_io.sio_data.start); 203 break; 204 case SMB_IOC_NBT_LISTEN: 205 rc = smb_server_nbt_listen(smb_io.sio_data.error); 206 break; 207 case SMB_IOC_TCP_LISTEN: 208 rc = smb_server_tcp_listen(smb_io.sio_data.error); 209 break; 210 case SMB_IOC_NBT_RECEIVE: 211 rc = smb_server_nbt_receive(); 212 break; 213 case SMB_IOC_TCP_RECEIVE: 214 rc = smb_server_tcp_receive(); 215 break; 216 case SMB_IOC_GMTOFF: 217 rc = smb_server_set_gmtoff(smb_io.sio_data.gmtoff); 218 break; 219 default: 220 rc = ENOTTY; 221 break; 222 } 223 224 return (rc); 225 } 226 227 /* 228 * **************************************************************************** 229 * Pseudo Device Operations 230 * **************************************************************************** 231 */ 232 static int 233 smb_drv_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 234 { 235 if (cmd == DDI_ATTACH) { 236 /* we only allow instance 0 to attach */ 237 if (ddi_get_instance(dip) == 0) { 238 /* create the minor node */ 239 if (ddi_create_minor_node(dip, "smbsrv", S_IFCHR, 0, 240 DDI_PSEUDO, 0) == DDI_SUCCESS) { 241 if (smb_server_svc_init() == 0) { 242 smb_drv_dip = dip; 243 return (DDI_SUCCESS); 244 } 245 ddi_remove_minor_node(dip, NULL); 246 } else { 247 cmn_err(CE_WARN, "smb_drv_attach:" 248 " failed creating minor node"); 249 } 250 } 251 } 252 return (DDI_FAILURE); 253 } 254 255 static int 256 smb_drv_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 257 { 258 if (cmd == DDI_DETACH) { 259 ASSERT(dip == smb_drv_dip); 260 if (smb_server_svc_fini() == 0) { 261 ddi_remove_minor_node(dip, NULL); 262 smb_drv_dip = NULL; 263 return (DDI_SUCCESS); 264 } 265 } 266 return (DDI_FAILURE); 267 } 268 269 /* ARGSUSED */ 270 static int 271 smb_drv_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) 272 { 273 ulong_t instance = getminor((dev_t)arg); 274 275 switch (cmd) { 276 case DDI_INFO_DEVT2DEVINFO: 277 *result = smb_drv_dip; 278 return (DDI_SUCCESS); 279 280 case DDI_INFO_DEVT2INSTANCE: 281 *result = (void *)instance; 282 return (DDI_SUCCESS); 283 284 default: 285 break; 286 } 287 288 return (DDI_FAILURE); 289 } 290