tdb_wrap: Remove tdb_wrap_open_ again
[kai/samba-autobuild/.git] / source4 / ntvfs / posix / vfs_posix.c
index ac12f3853fbed67566fa3a770dd0deafab7f3b8e..304a9ff8fe58063c12c69c93079fac417dd28fb9 100644 (file)
@@ -7,7 +7,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
    
    This program is distributed in the hope that it will be useful,
@@ -16,8 +16,7 @@
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 /*
   this implements most of the POSIX NTVFS backend
 
 #include "includes.h"
 #include "vfs_posix.h"
-#include "librpc/gen_ndr/ndr_security.h"
-#include "smbd/service_stream.h"
-#include "lib/tdb/include/tdb.h"
-
+#include "librpc/gen_ndr/security.h"
+#include "tdb_compat.h"
+#include "lib/tdb_wrap/tdb_wrap.h"
+#include "libcli/security/security.h"
+#include "lib/events/events.h"
+#include "param/param.h"
 
 /*
   setup config options for a posix share
 */
 static void pvfs_setup_options(struct pvfs_state *pvfs)
 {
-       int snum = pvfs->tcon->service;
-       const char *eadb;
-
-       if (lp_map_hidden(snum))     pvfs->flags |= PVFS_FLAG_MAP_HIDDEN;
-       if (lp_map_archive(snum))    pvfs->flags |= PVFS_FLAG_MAP_ARCHIVE;
-       if (lp_map_system(snum))     pvfs->flags |= PVFS_FLAG_MAP_SYSTEM;
-       if (lp_readonly(snum))       pvfs->flags |= PVFS_FLAG_READONLY;
-       if (lp_strict_sync(snum))    pvfs->flags |= PVFS_FLAG_STRICT_SYNC;
-       if (lp_strict_locking(snum)) pvfs->flags |= PVFS_FLAG_STRICT_LOCKING;
-       if (lp_ci_filesystem(snum))  pvfs->flags |= PVFS_FLAG_CI_FILESYSTEM;
-
-       if (lp_parm_bool(snum, "posix", "fakeoplocks", False)) {
+       struct share_config *scfg = pvfs->ntvfs->ctx->config;
+       char *eadb;
+       char *xattr_backend;
+       bool def_perm_override = false;
+
+       if (share_bool_option(scfg, SHARE_MAP_HIDDEN, SHARE_MAP_HIDDEN_DEFAULT))
+               pvfs->flags |= PVFS_FLAG_MAP_HIDDEN;
+       if (share_bool_option(scfg, SHARE_MAP_ARCHIVE, SHARE_MAP_ARCHIVE_DEFAULT))
+               pvfs->flags |= PVFS_FLAG_MAP_ARCHIVE;
+       if (share_bool_option(scfg, SHARE_MAP_SYSTEM, SHARE_MAP_SYSTEM_DEFAULT))
+               pvfs->flags |= PVFS_FLAG_MAP_SYSTEM;
+       if (share_bool_option(scfg, SHARE_READONLY, SHARE_READONLY_DEFAULT))
+               pvfs->flags |= PVFS_FLAG_READONLY;
+       if (share_bool_option(scfg, SHARE_STRICT_SYNC, SHARE_STRICT_SYNC_DEFAULT))
+               pvfs->flags |= PVFS_FLAG_STRICT_SYNC;
+       if (share_bool_option(scfg, SHARE_STRICT_LOCKING, SHARE_STRICT_LOCKING_DEFAULT))
+               pvfs->flags |= PVFS_FLAG_STRICT_LOCKING;
+       if (share_bool_option(scfg, SHARE_CI_FILESYSTEM, SHARE_CI_FILESYSTEM_DEFAULT))
+               pvfs->flags |= PVFS_FLAG_CI_FILESYSTEM;
+       if (share_bool_option(scfg, PVFS_FAKE_OPLOCKS, PVFS_FAKE_OPLOCKS_DEFAULT))
                pvfs->flags |= PVFS_FLAG_FAKE_OPLOCKS;
-       }
-
+       if (share_bool_option(scfg, PVFS_AIO, false))
+               pvfs->flags |= PVFS_FLAG_LINUX_AIO;
+
+#if defined(O_DIRECTORY) && defined(O_NOFOLLOW)
+       /* set PVFS_PERM_OVERRIDE by default only if the system
+        * supports the necessary capabilities to make it secure
+        */
+       def_perm_override = true;
+#endif
+       if (share_bool_option(scfg, PVFS_PERM_OVERRIDE, def_perm_override))
+               pvfs->flags |= PVFS_FLAG_PERM_OVERRIDE;
+
+       /* file perm options */
+       pvfs->options.create_mask       = share_int_option(scfg,
+                                                          SHARE_CREATE_MASK,
+                                                          SHARE_CREATE_MASK_DEFAULT);
+       pvfs->options.dir_mask          = share_int_option(scfg,
+                                                          SHARE_DIR_MASK,
+                                                          SHARE_DIR_MASK_DEFAULT);
+       pvfs->options.force_dir_mode    = share_int_option(scfg,
+                                                          SHARE_FORCE_DIR_MODE,
+                                                          SHARE_FORCE_DIR_MODE_DEFAULT);
+       pvfs->options.force_create_mode = share_int_option(scfg,
+                                                          SHARE_FORCE_CREATE_MODE,
+                                                          SHARE_FORCE_CREATE_MODE_DEFAULT);
        /* this must be a power of 2 */
-       pvfs->alloc_size_rounding = lp_parm_int(snum, 
-                                               "posix", "allocationrounding", 512);
+       pvfs->alloc_size_rounding = share_int_option(scfg,
+                                                       PVFS_ALLOCATION_ROUNDING,
+                                                       PVFS_ALLOCATION_ROUNDING_DEFAULT);
+
+       pvfs->search.inactivity_time = share_int_option(scfg,
+                                                       PVFS_SEARCH_INACTIVITY,
+                                                       PVFS_SEARCH_INACTIVITY_DEFAULT);
 
 #if HAVE_XATTR_SUPPORT
-       if (lp_parm_bool(snum, "posix", "xattr", True)) pvfs->flags |= PVFS_FLAG_XATTR_ENABLE;
+       if (share_bool_option(scfg, PVFS_XATTR, PVFS_XATTR_DEFAULT))
+               pvfs->flags |= PVFS_FLAG_XATTR_ENABLE;
 #endif
 
-       pvfs->sharing_violation_delay = lp_parm_int(snum, "posix", "sharedelay", 1000000);
+       pvfs->sharing_violation_delay = share_int_option(scfg,
+                                                       PVFS_SHARE_DELAY,
+                                                       PVFS_SHARE_DELAY_DEFAULT);
 
-       pvfs->share_name = talloc_strdup(pvfs, lp_servicename(snum));
+       pvfs->oplock_break_timeout = share_int_option(scfg,
+                                                     PVFS_OPLOCK_TIMEOUT,
+                                                     PVFS_OPLOCK_TIMEOUT_DEFAULT);
+
+       pvfs->writetime_delay = share_int_option(scfg,
+                                                PVFS_WRITETIME_DELAY,
+                                                PVFS_WRITETIME_DELAY_DEFAULT);
+
+       pvfs->share_name = talloc_strdup(pvfs, scfg->name);
 
        pvfs->fs_attribs = 
                FS_ATTR_CASE_SENSITIVE_SEARCH | 
@@ -70,10 +118,13 @@ static void pvfs_setup_options(struct pvfs_state *pvfs)
                FS_ATTR_SPARSE_FILES;
 
        /* allow xattrs to be stored in a external tdb */
-       eadb = lp_parm_string(snum, "posix", "eadb");
+       eadb = share_string_option(pvfs, scfg, PVFS_EADB, NULL);
        if (eadb != NULL) {
-               pvfs->ea_db = tdb_wrap_open(pvfs, eadb, 50000,  
-                                           TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
+               pvfs->ea_db = tdb_wrap_open(
+                       pvfs, eadb, 50000,
+                       lpcfg_tdb_flags(pvfs->ntvfs->ctx->lp_ctx, TDB_DEFAULT),
+                       O_RDWR|O_CREAT, 0600);
+               TALLOC_FREE(eadb);
                if (pvfs->ea_db != NULL) {
                        pvfs->flags |= PVFS_FLAG_XATTR_ENABLE;
                } else {
@@ -92,16 +143,39 @@ static void pvfs_setup_options(struct pvfs_state *pvfs)
 
        pvfs->sid_cache.creator_owner = dom_sid_parse_talloc(pvfs, SID_CREATOR_OWNER);
        pvfs->sid_cache.creator_group = dom_sid_parse_talloc(pvfs, SID_CREATOR_GROUP);
-#ifdef HAVE_BLKID
-       pvfs->blkid_cache = NULL;
-#endif
 
        /* check if the system really supports xattrs */
        if (pvfs->flags & PVFS_FLAG_XATTR_ENABLE) {
                pvfs_xattr_probe(pvfs);
        }
+
+       /* enable an ACL backend */
+       xattr_backend = share_string_option(pvfs, scfg, PVFS_ACL, "xattr");
+       pvfs->acl_ops = pvfs_acl_backend_byname(xattr_backend);
+       TALLOC_FREE(xattr_backend);
 }
 
+static int pvfs_state_destructor(struct pvfs_state *pvfs)
+{
+       struct pvfs_file *f, *fn;
+       struct pvfs_search_state *s, *sn;
+
+       /* 
+        * make sure we cleanup files and searches before anything else
+        * because there destructors need to acess the pvfs_state struct
+        */
+       for (f=pvfs->files.list; f; f=fn) {
+               fn = f->next;
+               talloc_free(f);
+       }
+
+       for (s=pvfs->search.list; s; s=sn) {
+               sn = s->next;
+               talloc_free(s);
+       }
+
+       return 0;
+}
 
 /*
   connect to a share - used when a tree_connect operation comes
@@ -110,23 +184,54 @@ static void pvfs_setup_options(struct pvfs_state *pvfs)
   that comes later)
 */
 static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs,
-                            struct smbsrv_request *req, const char *sharename)
+                            struct ntvfs_request *req,
+                            union smb_tcon* tcon)
 {
-       struct smbsrv_tcon *tcon = req->tcon;
        struct pvfs_state *pvfs;
        struct stat st;
        char *base_directory;
        NTSTATUS status;
+       const char *sharename;
+
+       switch (tcon->generic.level) {
+       case RAW_TCON_TCON:
+               sharename = tcon->tcon.in.service;
+               break;
+       case RAW_TCON_TCONX:
+               sharename = tcon->tconx.in.path;
+               break;
+       case RAW_TCON_SMB2:
+               sharename = tcon->smb2.in.path;
+               break;
+       default:
+               return NT_STATUS_INVALID_LEVEL;
+       }
 
-       pvfs = talloc_zero(tcon, struct pvfs_state);
+       if (strncmp(sharename, "\\\\", 2) == 0) {
+               char *p = strchr(sharename+2, '\\');
+               if (p) {
+                       sharename = p + 1;
+               }
+       }
+
+       /*
+        * TODO: call this from ntvfs_posix_init()
+        *       but currently we don't have a lp_ctx there
+        */
+       status = pvfs_acl_init();
+       NT_STATUS_NOT_OK_RETURN(status);
+
+       pvfs = talloc_zero(ntvfs, struct pvfs_state);
        NT_STATUS_HAVE_NO_MEMORY(pvfs);
 
        /* for simplicity of path construction, remove any trailing slash now */
-       base_directory = talloc_strdup(pvfs, lp_pathname(tcon->service));
+       base_directory = share_string_option(pvfs, ntvfs->ctx->config, SHARE_PATH, "");
        NT_STATUS_HAVE_NO_MEMORY(base_directory);
-       trim_string(base_directory, NULL, "/");
+       if (strcmp(base_directory, "/") != 0) {
+               trim_string(base_directory, NULL, "/");
+       }
 
-       pvfs->tcon = tcon;
+       pvfs->ntvfs = ntvfs;
        pvfs->base_directory = base_directory;
 
        /* the directory must exist. Note that we deliberately don't
@@ -137,51 +242,55 @@ static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs,
                return NT_STATUS_BAD_NETWORK_NAME;
        }
 
-       tcon->fs_type = talloc_strdup(tcon, "NTFS");
-       NT_STATUS_HAVE_NO_MEMORY(tcon->fs_type);
+       ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS");
+       NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->fs_type);
+
+       ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "A:");
+       NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->dev_type);
 
-       tcon->dev_type = talloc_strdup(tcon, "A:");
-       NT_STATUS_HAVE_NO_MEMORY(tcon->dev_type);
+       if (tcon->generic.level == RAW_TCON_TCONX) {
+               tcon->tconx.out.fs_type = ntvfs->ctx->fs_type;
+               tcon->tconx.out.dev_type = ntvfs->ctx->dev_type;
+       }
 
        ntvfs->private_data = pvfs;
 
-       pvfs->brl_context = brl_init(pvfs, 
-                                    pvfs->tcon->smb_conn->connection->server_id,  
-                                    pvfs->tcon->service,
-                                    pvfs->tcon->smb_conn->connection->msg_ctx);
+       pvfs->brl_context = brlock_init(pvfs, 
+                                    pvfs->ntvfs->ctx->server_id,
+                                    pvfs->ntvfs->ctx->lp_ctx,
+                                    pvfs->ntvfs->ctx->msg_ctx);
        if (pvfs->brl_context == NULL) {
                return NT_STATUS_INTERNAL_DB_CORRUPTION;
        }
 
-       pvfs->odb_context = odb_init(pvfs, 
-                                    pvfs->tcon->smb_conn->connection->server_id,  
-                                    pvfs->tcon->smb_conn->connection->msg_ctx);
+       pvfs->odb_context = odb_init(pvfs, pvfs->ntvfs->ctx);
        if (pvfs->odb_context == NULL) {
                return NT_STATUS_INTERNAL_DB_CORRUPTION;
        }
 
-       pvfs->sidmap = sidmap_open(pvfs);
-       if (pvfs->sidmap == NULL) {
-               return NT_STATUS_INTERNAL_DB_CORRUPTION;
-       }
-
-       /* allocate the fnum id -> ptr tree */
-       pvfs->idtree_fnum = idr_init(pvfs);
-       NT_STATUS_HAVE_NO_MEMORY(pvfs->idtree_fnum);
+       /* allow this to be NULL - we just disable change notify */
+       pvfs->notify_context = notify_init(pvfs, 
+                                          pvfs->ntvfs->ctx->server_id,  
+                                          pvfs->ntvfs->ctx->msg_ctx, 
+                                          pvfs->ntvfs->ctx->lp_ctx,
+                                          pvfs->ntvfs->ctx->event_ctx,
+                                          pvfs->ntvfs->ctx->config);
 
        /* allocate the search handle -> ptr tree */
-       pvfs->idtree_search = idr_init(pvfs);
-       NT_STATUS_HAVE_NO_MEMORY(pvfs->idtree_search);
+       pvfs->search.idtree = idr_init(pvfs);
+       NT_STATUS_HAVE_NO_MEMORY(pvfs->search.idtree);
 
        status = pvfs_mangle_init(pvfs);
        NT_STATUS_NOT_OK_RETURN(status);
 
        pvfs_setup_options(pvfs);
 
+       talloc_set_destructor(pvfs, pvfs_state_destructor);
+
 #ifdef SIGXFSZ
        /* who had the stupid idea to generate a signal on a large
           file write instead of just failing it!? */
-       BlockSignals(True, SIGXFSZ);
+       BlockSignals(true, SIGXFSZ);
 #endif
 
        return NT_STATUS_OK;
@@ -190,8 +299,7 @@ static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs,
 /*
   disconnect from a share
 */
-static NTSTATUS pvfs_disconnect(struct ntvfs_module_context *ntvfs,
-                               struct smbsrv_tcon *tcon)
+static NTSTATUS pvfs_disconnect(struct ntvfs_module_context *ntvfs)
 {
        return NT_STATUS_OK;
 }
@@ -200,14 +308,16 @@ static NTSTATUS pvfs_disconnect(struct ntvfs_module_context *ntvfs,
   check if a directory exists
 */
 static NTSTATUS pvfs_chkpath(struct ntvfs_module_context *ntvfs,
-                            struct smbsrv_request *req, struct smb_chkpath *cp)
+                            struct ntvfs_request *req,
+                            union smb_chkpath *cp)
 {
-       struct pvfs_state *pvfs = ntvfs->private_data;
+       struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+                                 struct pvfs_state);
        struct pvfs_filename *name;
        NTSTATUS status;
 
        /* resolve the cifs name to a posix name */
-       status = pvfs_resolve_name(pvfs, req, cp->in.path, 0, &name);
+       status = pvfs_resolve_name(pvfs, req, cp->chkpath.in.path, 0, &name);
        NT_STATUS_NOT_OK_RETURN(status);
 
        if (!name->exists) {
@@ -225,7 +335,7 @@ static NTSTATUS pvfs_chkpath(struct ntvfs_module_context *ntvfs,
   copy a set of files
 */
 static NTSTATUS pvfs_copy(struct ntvfs_module_context *ntvfs,
-                         struct smbsrv_request *req, struct smb_copy *cp)
+                         struct ntvfs_request *req, struct smb_copy *cp)
 {
        DEBUG(0,("pvfs_copy not implemented\n"));
        return NT_STATUS_NOT_SUPPORTED;
@@ -235,14 +345,14 @@ static NTSTATUS pvfs_copy(struct ntvfs_module_context *ntvfs,
   return print queue info
 */
 static NTSTATUS pvfs_lpq(struct ntvfs_module_context *ntvfs,
-                        struct smbsrv_request *req, union smb_lpq *lpq)
+                        struct ntvfs_request *req, union smb_lpq *lpq)
 {
        return NT_STATUS_NOT_SUPPORTED;
 }
 
 /* SMBtrans - not used on file shares */
 static NTSTATUS pvfs_trans(struct ntvfs_module_context *ntvfs,
-                          struct smbsrv_request *req, struct smb_trans2 *trans2)
+                          struct ntvfs_request *req, struct smb_trans2 *trans2)
 {
        return NT_STATUS_ACCESS_DENIED;
 }
@@ -254,54 +364,64 @@ NTSTATUS ntvfs_posix_init(void)
 {
        NTSTATUS ret;
        struct ntvfs_ops ops;
+       NTVFS_CURRENT_CRITICAL_SIZES(vers);
 
        ZERO_STRUCT(ops);
 
        ops.type = NTVFS_DISK;
        
        /* fill in all the operations */
-       ops.connect = pvfs_connect;
-       ops.disconnect = pvfs_disconnect;
-       ops.unlink = pvfs_unlink;
-       ops.chkpath = pvfs_chkpath;
-       ops.qpathinfo = pvfs_qpathinfo;
-       ops.setpathinfo = pvfs_setpathinfo;
-       ops.openfile = pvfs_open;
-       ops.mkdir = pvfs_mkdir;
-       ops.rmdir = pvfs_rmdir;
-       ops.rename = pvfs_rename;
-       ops.copy = pvfs_copy;
-       ops.ioctl = pvfs_ioctl;
-       ops.read = pvfs_read;
-       ops.write = pvfs_write;
-       ops.seek = pvfs_seek;
-       ops.flush = pvfs_flush; 
-       ops.close = pvfs_close;
-       ops.exit = pvfs_exit;
-       ops.lock = pvfs_lock;
-       ops.setfileinfo = pvfs_setfileinfo;
-       ops.qfileinfo = pvfs_qfileinfo;
-       ops.fsinfo = pvfs_fsinfo;
-       ops.lpq = pvfs_lpq;
-       ops.search_first = pvfs_search_first;
-       ops.search_next = pvfs_search_next;
-       ops.search_close = pvfs_search_close;
-       ops.trans = pvfs_trans;
-       ops.logoff = pvfs_logoff;
-       ops.async_setup = pvfs_async_setup;
-       ops.cancel = pvfs_cancel;
+       ops.connect_fn = pvfs_connect;
+       ops.disconnect_fn = pvfs_disconnect;
+       ops.unlink_fn = pvfs_unlink;
+       ops.chkpath_fn = pvfs_chkpath;
+       ops.qpathinfo_fn = pvfs_qpathinfo;
+       ops.setpathinfo_fn = pvfs_setpathinfo;
+       ops.open_fn = pvfs_open;
+       ops.mkdir_fn = pvfs_mkdir;
+       ops.rmdir_fn = pvfs_rmdir;
+       ops.rename_fn = pvfs_rename;
+       ops.copy_fn = pvfs_copy;
+       ops.ioctl_fn = pvfs_ioctl;
+       ops.read_fn = pvfs_read;
+       ops.write_fn = pvfs_write;
+       ops.seek_fn = pvfs_seek;
+       ops.flush_fn = pvfs_flush;
+       ops.close_fn = pvfs_close;
+       ops.exit_fn = pvfs_exit;
+       ops.lock_fn = pvfs_lock;
+       ops.setfileinfo_fn = pvfs_setfileinfo;
+       ops.qfileinfo_fn = pvfs_qfileinfo;
+       ops.fsinfo_fn = pvfs_fsinfo;
+       ops.lpq_fn = pvfs_lpq;
+       ops.search_first_fn = pvfs_search_first;
+       ops.search_next_fn = pvfs_search_next;
+       ops.search_close_fn = pvfs_search_close;
+       ops.trans_fn = pvfs_trans;
+       ops.logoff_fn = pvfs_logoff;
+       ops.async_setup_fn = pvfs_async_setup;
+       ops.cancel_fn = pvfs_cancel;
+       ops.notify_fn = pvfs_notify;
 
        /* register ourselves with the NTVFS subsystem. We register
           under the name 'default' as we wish to be the default
           backend, and also register as 'posix' */
        ops.name = "default";
-       ret = ntvfs_register(&ops);
+       ret = ntvfs_register(&ops, &vers);
+
+       if (!NT_STATUS_IS_OK(ret)) {
+               DEBUG(0,("Failed to register POSIX backend as '%s'!\n", ops.name));
+       }
 
        ops.name = "posix";
-       ret = ntvfs_register(&ops);
+       ret = ntvfs_register(&ops, &vers);
 
        if (!NT_STATUS_IS_OK(ret)) {
-               DEBUG(0,("Failed to register POSIX backend!\n"));
+               DEBUG(0,("Failed to register POSIX backend as '%s'!\n", ops.name));
+       }
+
+       if (NT_STATUS_IS_OK(ret)) {
+               ret = ntvfs_common_init();
        }
 
        return ret;