smb_server.c revision 29bd28862cfb8abbd3a0f0a4b17e08bbc3652836
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faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * CDDL HEADER END
7f667e74610492ddbce8ce60f52ece95d2401949jose borrego * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Use is subject to license terms.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * General Structures Layout
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * -------------------------
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This is a simplified diagram showing the relationship between most of the
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * main structures.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | SMB_SERVER |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------------------+ +-------------------+ +-------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | SESSION |<----->| SESSION |......| SESSION |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------------------+ +-------------------+ +-------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------------------+ +-------------------+ +-------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | USER |<----->| USER |......| USER |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------------------+ +-------------------+ +-------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------------------+ +-------------------+ +-------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | TREE |<----->| TREE |......| TREE |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------------------+ +-------------------+ +-------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | +-------+ +-------+ +-------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | | OFILE |<----->| OFILE |......| OFILE |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | +-------+ +-------+ +-------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------+ +------+ +------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | ODIR |<----->| ODIR |......| ODIR |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-------+ +------+ +------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Module Interface Overview
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * -------------------------
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +===================================+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | smbd daemon |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +===================================+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * User | | |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * -----------|--------------|----------------|--------------------------------
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Kernel | | |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +=========|==============|================|=================+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | v v | |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | +-----------+ +--------------------+ +------------------+ |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | | IO | | Kernel Door Server | | User Door Servers| |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | | Interface | | Interface | | Interface | |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | +-----------+ +--------------------+ +------------------+ |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | | | ^ ^ |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | v v | | | +=========+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | +-----------------------------------+ | | | |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | + SMB Server Management (this file) |<------------------| ZFS |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | +-----------------------------------+ | | | |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | | | | Module |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | +-----------------------------------+ | | | |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | + SMB Server Internal Layers |------+ | +=========+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | +-----------------------------------+ |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +===========================================================+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Server State Machine
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * --------------------
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-----------------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | SMB_SERVER_STATE_CREATED |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-----------------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-----------------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | SMB_SERVER_STATE_CONFIGURED |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-----------------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-----------------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | SMB_SERVER_STATE_RUNNING |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-----------------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-----------------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * | SMB_SERVER_STATE_DELETING |
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * +-----------------------------+
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * SMB_SERVER_STATE_CREATED
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This is the state of the server just after creation.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * SMB_SERVER_STATE_CONFIGURED
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * The server has been configured.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * SMB_SERVER_STATE_RUNNING
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * The server has been started. While in this state the threads listening on
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * the sockets car be started. The smbd daemon does so through an Ioctl:
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_drv_ioctl(SMB_IOC_NBT_LISTEN) --> smb_server_nbt_listen()
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_drv_ioctl(SMB_IOC_TCP_LISTEN) --> smb_server_nbt_listen()
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * When a client establishes a connection the thread listening leaves
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * temporarily the kernel. While in user space it creates a thread for the
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * new session. It then returns to kernel with the result of the thread
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * creation. If the creation failed the new session context is destroyed
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * before returning listening.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * The new created thread enters the kernel though an Ioctl:
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_drv_ioctl(SMB_IOC_NBT_RECEIVE) --> smb_server_nbt_receive()
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_drv_ioctl(SMB_IOC_TCP_RECEIVE) --> smb_server_tcp_receive()
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * SMB_SERVER_STATE_STOPPING
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * The threads listening on the NBT and TCP sockets are being terminated.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Transitions
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * -----------
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Transition T0
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * The daemon smbd triggers its creation by opening the smbsrv device. If
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * the zone where the daemon lives doesn't have an smb server yet it is
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * created.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_drv_open() --> smb_server_create()
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Transition T1
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This transition occurs in smb_server_configure(). It is triggered by the
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * daemon through an Ioctl.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_drv_ioctl(SMB_IOC_CONFIG) --> smb_server_configure()
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Transition T2
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This transition occurs in smb_server_start(). It is triggered by the
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * daemon through an Ioctl.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_drv_ioctl(SMB_IOC_START) --> smb_server_start()
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Transition T3
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This transition occurs in smb_server_delete(). It is triggered by the
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * daemon when closing the smbsrv device
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_drv_close() --> smb_server_delete()
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Comments
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * --------
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This files assumes that there will one SMB server per zone. For now the
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb server works only in global zone. There's nothing in this file preventing
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * an smb server from being created in a non global zone. That limitation is
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * enforced in user space.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbextern void smb_dispatch_kstat_init(void);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbextern void smb_dispatch_kstat_fini(void);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbextern void smb_reply_notify_change_request(smb_request_t *);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbstatic int smb_server_listen(smb_server_t *, smb_listener_daemon_t *,
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wrightstatic int smb_server_ulist_geti(smb_session_list_t *, uint32_t,
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wrightstatic void smb_server_store_cfg(smb_server_t *, smb_ioc_cfg_t *);
2c1b14e51525da2c09064641416fc4aed457c72fjose borregostatic void smb_server_disconnect_share(char *, smb_server_t *);
2c1b14e51525da2c09064641416fc4aed457c72fjose borregostatic void smb_server_thread_unexport(smb_thread_t *, void *);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * *****************************************************************************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * **************** Functions called from the device interface *****************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * *****************************************************************************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * These functions determine the relevant smb server to which the call apply.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_svc_init
c8ec8eea9849cac239663c46be8a7f5d2ba7ca00jose borrego * This function must be called from smb_drv_attach().
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb while (rc == 0) {
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb smb_llist_constructor(&smb_servers, sizeof (smb_server_t),
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_svc_fini
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This function must called from smb_drv_detach(). It will fail if servers
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * still exist.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_create
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This function will fail if there's already a server associated with the
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * caller's zone.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb while (sv) {
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb smb_llist_constructor(&sv->sv_vfs_list, sizeof (smb_vfs_t),
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego smb_slist_constructor(&sv->sv_unexport_list, sizeof (smb_unexport_t),
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb smb_session_list_constructor(&sv->sv_nbt_daemon.ld_session_list);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb smb_session_list_constructor(&sv->sv_tcp_daemon.ld_session_list);
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego sv->si_cache_unexport = kmem_cache_create("smb_unexport_cache",
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego sizeof (smb_unexport_t), 8, NULL, NULL, NULL, NULL, NULL, 0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sv->si_cache_request = kmem_cache_create("smb_request_cache",
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sizeof (smb_request_t), 8, NULL, NULL, NULL, NULL, NULL, 0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sv->si_cache_session = kmem_cache_create("smb_session_cache",
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sizeof (smb_session_t), 8, NULL, NULL, NULL, NULL, NULL, 0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sizeof (smb_user_t), 8, NULL, NULL, NULL, NULL, NULL, 0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sizeof (smb_tree_t), 8, NULL, NULL, NULL, NULL, NULL, 0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sv->si_cache_ofile = kmem_cache_create("smb_ofile_cache",
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sizeof (smb_ofile_t), 8, NULL, NULL, NULL, NULL, NULL, 0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sizeof (smb_odir_t), 8, NULL, NULL, NULL, NULL, NULL, 0);
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego smb_thread_init(&sv->si_thread_unexport, "smb_thread_unexport",
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_delete
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This function will delete the server passed in. It will make sure that all
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * activity associated that server has ceased before destroying it.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb if (rc != 0)
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego while ((ux = list_head(&sv->sv_unexport_list.sl_list)) != NULL) {
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_configure
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_start
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
7f667e74610492ddbce8ce60f52ece95d2401949jose borrego sv->sv_session = smb_session_create(NULL, 0, sv, 0);
8d96b23e24cf8db8618f698bfa580a25d7dc6029Alan Wright if (sv->sv_thread_pool == NULL || sv->sv_session == NULL) {
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego if (rc = smb_thread_start(&sv->si_thread_unexport))
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_nbt_listen: SMB-over-NetBIOS service
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Traditional SMB service over NetBIOS (port 139), which requires
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * that a NetBIOS session be established.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States smb_server_release(sv);
7f667e74610492ddbce8ce60f52ece95d2401949jose borrego * netbios must be ipv4
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb rc = smb_server_listen(sv, &sv->sv_nbt_daemon, SSN_SRVC_TCP_PORT,
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States smb_server_release(sv);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States smb_server_release(sv);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_nbt_receive
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States if ((rc = smb_server_lookup(&sv)) == 0) {
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States rc = smb_session_daemon(&sv->sv_nbt_daemon.ld_session_list);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States smb_server_release(sv);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States }
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_tcp_receive
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States if ((rc = smb_server_lookup(&sv)) == 0) {
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States rc = smb_session_daemon(&sv->sv_tcp_daemon.ld_session_list);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States smb_server_release(sv);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States }
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States if ((rc = smb_server_lookup(&sv)) == 0) {
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States smb_server_release(sv);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States }
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright smb_server_ulist_geti(&sv->sv_nbt_daemon.ld_session_list,
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright smb_server_ulist_geti(&sv->sv_tcp_daemon.ld_session_list,
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * *****************************************************************************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * ****************** Functions called from the door interface *****************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * *****************************************************************************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * These functions determine the relevant smb server to which the call apply.
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States if (smb_server_lookup(&sv) == 0) {
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States counter = (uint32_t)sv->sv_open_users;
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States smb_server_release(sv);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States }
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb rw_enter(&sv->sv_nbt_daemon.ld_session_list.se_lock, RW_READER);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb counter = sv->sv_nbt_daemon.ld_session_list.se_act.count;
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb rw_enter(&sv->sv_tcp_daemon.ld_session_list.se_lock, RW_READER);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb counter += sv->sv_tcp_daemon.ld_session_list.se_act.count;
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * smb_server_disconnect_share
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Disconnects the specified share. This function should be called after the
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * share passed in has been made unavailable by the "share manager".
2c1b14e51525da2c09064641416fc4aed457c72fjose borregosmb_server_disconnect_share(char *sharename, smb_server_t *sv)
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb smb_session_disconnect_share(&sv->sv_nbt_daemon.ld_session_list,
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb smb_session_disconnect_share(&sv->sv_tcp_daemon.ld_session_list,
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_share_export()
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This function handles kernel processing at share enable time.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * At share-enable time (LMSHRD_ADD), the file system corresponding to
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * the share is checked for characteristics that are required for SMB
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * sharing. If this check passes, then a hold is taken on the root vnode
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * of the file system (or a reference count on the corresponding smb_vfs_t
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * is bumped), preventing an unmount. (See smb_vfs_hold()).
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States int error = 0;
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright error = smb_pathname_reduce(sr, kcred, ioc->path,
8b2cc8ac894f2d58f38cf2fb7c3ac778f4c57c09afshin salek ardakani - Sun Microsystems - Irvine United States error = smb_fsop_lookup(sr, sr->user_cr, SMB_FOLLOW_LINKS,
8b2cc8ac894f2d58f38cf2fb7c3ac778f4c57c09afshin salek ardakani - Sun Microsystems - Irvine United States sv->si_root_smb_node, dnode, last_comp, &fnode, &ret_attr);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States if (vfs_optionisset(fnode->vp->v_vfsp, MNTOPT_NODEVICES, NULL) == 0) {
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States return (EINVAL);
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States#endif /* SMB_ENFORCE_NODEV */
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States if (!smb_vfs_hold(sv, fnode->vp->v_vfsp))
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States error = ENOMEM;
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * The refcount on the smb_vfs has been incremented.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * If it wasn't already, a hold has also been taken
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * on the root vnode of the file system.
08f0d8da054d72c87f9a35f2ea891d2c3541ceb5afshin salek ardakani - Sun Microsystems - Irvine United States return (error);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_share_unexport()
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * This function is invoked when a share is disabled to disconnect trees
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * and close files. Cleaning up may involve VOP and/or VFS calls, which
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * may conflict/deadlock with stuck threads if something is amiss with the
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * file system. Queueing the request for asynchronous processing allows the
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * call to return immediately so that, if the unshare is being done in the
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * context of a forced unmount, the forced unmount will always be able to
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * proceed (unblocking stuck I/O and eventually allowing all blocked unshare
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * processes to complete).
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * The path lookup to find the root vnode of the VFS in question and the
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * release of this vnode are done synchronously prior to any associated
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * unmount. Doing these asynchronous to an associated unmount could run
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * the risk of a spurious EBUSY for a standard unmount or an EIO during
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * the path lookup due to a forced unmount finishing first.
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright rc = smb_pathname_reduce(sr, kcred, ioc->path, NULL, NULL,
8b2cc8ac894f2d58f38cf2fb7c3ac778f4c57c09afshin salek ardakani - Sun Microsystems - Irvine United States rc = smb_fsop_lookup(sr, kcred, SMB_FOLLOW_LINKS, sv->si_root_smb_node,
8b2cc8ac894f2d58f38cf2fb7c3ac778f4c57c09afshin salek ardakani - Sun Microsystems - Irvine United States dnode, last_comp, &fnode, &ret_attr);
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego ux = kmem_cache_alloc(sv->si_cache_unexport, KM_SLEEP);
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright (void) strlcpy(ux->ux_sharename, ioc->name, MAXNAMELEN);
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego smb_slist_insert_tail(&sv->sv_unexport_list, ux);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (0);
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * smb_server_thread_unexport
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * This function processes the unexport event list and disconnects shares
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * asynchronously. The function executes as a zone-specific thread.
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * The server arg passed in is safe to use without a reference count, because
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * the server cannot be deleted until smb_thread_stop()/destroy() return,
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego * which is also when the thread exits.
2c1b14e51525da2c09064641416fc4aed457c72fjose borregosmb_server_thread_unexport(smb_thread_t *thread, void *arg)
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego while ((ux = list_head(&sv->sv_unexport_list.sl_list))
2c1b14e51525da2c09064641416fc4aed457c72fjose borrego smb_server_disconnect_share(ux->ux_sharename, sv);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This is a special interface that will be utilized by ZFS to cause a share to
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * arg is either a lmshare_info_t or share_name from userspace.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * It will need to be copied into the kernel. It is lmshare_info_t
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * for add operations and share_name for delete operations.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb if (rc == 0) {
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright (void) smb_kshare_upcall(sv->sv_lmshrd, arg, add_share);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * *****************************************************************************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * **************** Functions called from the internal layers ******************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * *****************************************************************************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * These functions are provided the relevant smb server by the caller.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbsmb_server_reconnection_check(smb_server_t *sv, smb_session_t *session)
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb smb_session_reconnection_check(&sv->sv_nbt_daemon.ld_session_list,
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb smb_session_reconnection_check(&sv->sv_tcp_daemon.ld_session_list,
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * *****************************************************************************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * *************************** Static Functions ********************************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * *****************************************************************************
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbstatic void
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb while (smb_thread_continue_timedwait(thread, 1 /* Seconds */)) {
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_kstat_init
6537f381d2d9e7b4e2f7b29c3e7a3f13be036f2eas (void) snprintf(sv->sv_ksp_name, sizeof (sv->sv_ksp_name), "%s%d",
6537f381d2d9e7b4e2f7b29c3e7a3f13be036f2eas sv->sv_ksp = kstat_create(SMBSRV_KSTAT_MODULE, 0, sv->sv_ksp_name,
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb (void) strlcpy(sv->sv_ks_data.open_files.name, "open_files",
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb (void) strlcpy(sv->sv_ks_data.open_trees.name, "connections",
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb (void) strlcpy(sv->sv_ks_data.open_users.name, "sessions",
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb mutex_init(&sv->sv_ksp_mutex, NULL, MUTEX_DEFAULT, NULL);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb /* create and initialize smb kstats - smb_dispatch stats */
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_kstat_fini
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbstatic void
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb/* ARGSUSED */
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb _NOTE(LINTED("pointer cast may result in improper alignment"))
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sv->sv_ks_data.open_files.value.ui32 = sv->sv_open_files;
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sv->sv_ks_data.open_trees.value.ui32 = sv->sv_open_trees;
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb sv->sv_ks_data.open_users.value.ui32 = sv->sv_open_users;
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_stop
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * The mutex of the server must have been entered before calling this function.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbstatic void
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Delete the last session created. The user space thread
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * creation failed.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb /* First time listener */
7f667e74610492ddbce8ce60f52ece95d2401949jose borrego ld->ld_sin.sin_addr.s_addr = htonl(INADDR_ANY);
7f667e74610492ddbce8ce60f52ece95d2401949jose borrego (void) memset(&ld->ld_sin6.sin6_addr.s6_addr, 0,
7f667e74610492ddbce8ce60f52ece95d2401949jose borrego ld->ld_so = smb_socreate(family, SOCK_STREAM, 0);
0f1702c5201310f0529cd5abb77652e5e9b241b6Yu Xiangning (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET,
fc724630b14603e4c1147df68b7bf45f7de7431fAlan Wright (void) ksocket_setsockopt(ld->ld_so, SOL_SOCKET,
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb if (rc == 0) {
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb if (rc < 0) {
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb DTRACE_PROBE1(so__wait__accept, struct sonode *, ld->ld_so);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb for (;;) {
0f1702c5201310f0529cd5abb77652e5e9b241b6Yu Xiangning rc = ksocket_accept(ld->ld_so, NULL, NULL, &s_so, CRED());
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb if (rc == 0) {
0f1702c5201310f0529cd5abb77652e5e9b241b6Yu Xiangning (void) ksocket_setsockopt(s_so, SOL_SOCKET, SO_SNDBUF,
0f1702c5201310f0529cd5abb77652e5e9b241b6Yu Xiangning (const void *)&txbuf_size, sizeof (txbuf_size),
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * Create a session for this connection.
7f667e74610492ddbce8ce60f52ece95d2401949jose borrego session = smb_session_create(s_so, port, sv, family);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (rc);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_lookup
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This function tries to find the server associated with the zone of the
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb while (sv) {
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb return (0);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * smb_server_release
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * This function decrements the reference count of the server and signals its
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb * condition variable if the state of the server is SMB_SERVER_STATE_DELETING.
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbstatic void
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb if ((sv->sv_refcnt == 0) && (sv->sv_state == SMB_SERVER_STATE_DELETING))
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wrightsmb_server_ulist_geti(smb_session_list_t *se, uint32_t cookie,
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright if ((user->u_state == SMB_USER_STATE_LOGGED_IN) &&
b89a8333f5e1f75ec0c269b22524bd2eccb972banatalie li - Sun Microsystems - Irvine United States sn = list_next(&se->se_act.lst, sn);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbstatic void
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wrightsmb_server_store_cfg(smb_server_t *sv, smb_ioc_cfg_t *ioc)
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright &sv->sv_nbt_daemon.ld_session_list, ioc->keepalive);
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright &sv->sv_tcp_daemon.ld_session_list, ioc->keepalive);
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright sv->sv_cfg.skc_maxconnections = ioc->maxconnections;
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright sv->sv_cfg.skc_restrict_anon = ioc->restrict_anon;
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright sv->sv_cfg.skc_signing_enable = ioc->signing_enable;
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright sv->sv_cfg.skc_signing_required = ioc->signing_required;
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright sv->sv_cfg.skc_oplock_enable = ioc->oplock_enable;
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright (void) strlcpy(sv->sv_cfg.skc_nbdomain, ioc->nbdomain,
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright (void) strlcpy(sv->sv_cfg.skc_hostname, ioc->hostname,
29bd28862cfb8abbd3a0f0a4b17e08bbc3652836Alan Wright (void) strlcpy(sv->sv_cfg.skc_system_comment, ioc->system_comment,
faa1795a28a5c712eed6d0a3f84d98c368a316c6jb error = smb_node_root_init(rootdir, sv, &sv->si_root_smb_node);
faa1795a28a5c712eed6d0a3f84d98c368a316c6jbstatic void