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 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/types.h> 29 #include <sys/ddi.h> 30 #include <sys/modctl.h> 31 #include <sys/cred.h> 32 #include <sys/ioccom.h> 33 #include <sys/policy.h> 34 #include <smbsrv/smb_incl.h> 35 #include <smbsrv/mlsvc.h> 36 #include <smbsrv/smb_door_svc.h> 37 #include <smbsrv/smb_ioctl.h> 38 #include <smbsrv/smb_kproto.h> 39 40 static int smb_drv_open(dev_t *, int, int, cred_t *); 41 static int smb_drv_close(dev_t, int, int, cred_t *); 42 static int smb_drv_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 43 static int smb_drv_attach(dev_info_t *, ddi_attach_cmd_t); 44 static int smb_drv_detach(dev_info_t *, ddi_detach_cmd_t); 45 static int smb_drv_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); 46 47 /* 48 * ***************************************************************************** 49 * ****************************** Global Variables ***************************** 50 * ***************************************************************************** 51 * 52 * These variables can only be changed through the /etc/system file. 53 */ 54 55 /* 56 * Maximum buffer size for NT: configurable based on the client environment. 57 * IR104720 Experiments with Windows 2000 indicate that we achieve better 58 * SmbWriteX performance with a buffer size of 64KB instead of the 37KB used 59 * with Windows NT4.0. Previous experiments with NT4.0 resulted in directory 60 * listing problems so this buffer size is configurable based on the end-user 61 * environment. When in doubt use 37KB. 62 */ 63 int smb_maxbufsize = SMB_NT_MAXBUF; 64 clock_t smb_oplock_timeout = OPLOCK_STD_TIMEOUT; 65 int smb_flush_required = 1; 66 int smb_dirsymlink_enable = 1; 67 int smb_announce_quota = 0; 68 69 /* 70 * ***************************************************************************** 71 * ********************** Static Variables / Module Linkage ******************** 72 * ***************************************************************************** 73 */ 74 75 static struct cb_ops cbops = { 76 smb_drv_open, /* cb_open */ 77 smb_drv_close, /* cb_close */ 78 nodev, /* cb_strategy */ 79 nodev, /* cb_print */ 80 nodev, /* cb_dump */ 81 nodev, /* cb_read */ 82 nodev, /* cb_write */ 83 smb_drv_ioctl, /* cb_ioctl */ 84 nodev, /* cb_devmap */ 85 nodev, /* cb_mmap */ 86 nodev, /* cb_segmap */ 87 nochpoll, /* cb_chpoll */ 88 ddi_prop_op, /* cb_prop_op */ 89 NULL, /* cb_streamtab */ 90 D_MP, /* cb_flag */ 91 CB_REV, /* cb_rev */ 92 nodev, /* cb_aread */ 93 nodev, /* cb_awrite */ 94 }; 95 96 static struct dev_ops devops = { 97 DEVO_REV, /* devo_rev */ 98 0, /* devo_refcnt */ 99 smb_drv_getinfo, /* devo_getinfo */ 100 nulldev, /* devo_identify */ 101 nulldev, /* devo_probe */ 102 smb_drv_attach, /* devo_attach */ 103 smb_drv_detach, /* devo_detach */ 104 nodev, /* devo_reset */ 105 &cbops, /* devo_cb_ops */ 106 NULL, /* devo_bus_ops */ 107 NULL, /* devo_power */ 108 }; 109 110 static struct modldrv modldrv = { 111 &mod_driverops, /* drv_modops */ 112 "CIFS Server Protocol %I%", /* 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; 183 184 if (ddi_copyin((smb_io_t *)argp, &smb_io, sizeof (smb_io), flag) || 185 (smb_io.sio_version != SMB_IOC_VERSION)) 186 return (EFAULT); 187 188 switch (cmd) { 189 case SMB_IOC_CONFIG: 190 rc = smb_server_configure(&smb_io.sio_data.cfg); 191 break; 192 case SMB_IOC_START: 193 rc = smb_server_start(&smb_io.sio_data.start); 194 break; 195 case SMB_IOC_NBT_LISTEN: 196 rc = smb_server_nbt_listen(smb_io.sio_data.error); 197 break; 198 case SMB_IOC_TCP_LISTEN: 199 rc = smb_server_tcp_listen(smb_io.sio_data.error); 200 break; 201 case SMB_IOC_NBT_RECEIVE: 202 rc = smb_server_nbt_receive(); 203 break; 204 case SMB_IOC_TCP_RECEIVE: 205 rc = smb_server_tcp_receive(); 206 break; 207 case SMB_IOC_GMTOFF: 208 rc = smb_server_set_gmtoff(smb_io.sio_data.gmtoff); 209 break; 210 default: 211 rc = ENOTTY; 212 break; 213 } 214 215 return (rc); 216 } 217 218 /* 219 * **************************************************************************** 220 * Pseudo Device Operations 221 * **************************************************************************** 222 */ 223 static int 224 smb_drv_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) 225 { 226 if (cmd == DDI_ATTACH) { 227 /* we only allow instance 0 to attach */ 228 if (ddi_get_instance(dip) == 0) { 229 /* create the minor node */ 230 if (ddi_create_minor_node(dip, "smbsrv", S_IFCHR, 0, 231 DDI_PSEUDO, 0) == DDI_SUCCESS) { 232 if (smb_server_svc_init() == 0) { 233 smb_drv_dip = dip; 234 return (DDI_SUCCESS); 235 } 236 ddi_remove_minor_node(dip, NULL); 237 } else { 238 cmn_err(CE_WARN, "smb_drv_attach:" 239 " failed creating minor node"); 240 } 241 } 242 } 243 return (DDI_FAILURE); 244 } 245 246 static int 247 smb_drv_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 248 { 249 if (cmd == DDI_DETACH) { 250 ASSERT(dip == smb_drv_dip); 251 if (smb_server_svc_fini() == 0) { 252 ddi_remove_minor_node(dip, NULL); 253 smb_drv_dip = NULL; 254 return (DDI_SUCCESS); 255 } 256 } 257 return (DDI_FAILURE); 258 } 259 260 /* ARGSUSED */ 261 static int 262 smb_drv_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) 263 { 264 ulong_t instance = getminor((dev_t)arg); 265 266 switch (cmd) { 267 case DDI_INFO_DEVT2DEVINFO: 268 *result = smb_drv_dip; 269 return (DDI_SUCCESS); 270 271 case DDI_INFO_DEVT2INSTANCE: 272 *result = (void *)instance; 273 return (DDI_SUCCESS); 274 275 default: 276 break; 277 } 278 279 return (DDI_FAILURE); 280 } 281