From ef2e26c91b80556af033d3335e55f5dfa6fff31d Mon Sep 17 00:00:00 2001 From: Andrew Tridgell Date: Wed, 13 Aug 2003 01:53:07 +0000 Subject: first public release of samba4 code (This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f) --- source4/ntvfs/posix/vfs_posix.c | 151 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 151 insertions(+) create mode 100644 source4/ntvfs/posix/vfs_posix.c (limited to 'source4/ntvfs/posix') diff --git a/source4/ntvfs/posix/vfs_posix.c b/source4/ntvfs/posix/vfs_posix.c new file mode 100644 index 0000000000..b27e7493a0 --- /dev/null +++ b/source4/ntvfs/posix/vfs_posix.c @@ -0,0 +1,151 @@ +/* + Unix SMB/CIFS implementation. + POSIX NTVFS backend + Copyright (C) Andrew Tridgell 1992-2003 + Copyright (C) Andrew Bartlett 2001 + + 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 + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + 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. +*/ +/* + this implements most of the POSIX NTVFS backend + This is the default backend +*/ + +#include "includes.h" + +/* + connect to a share - used when a tree_connect operation comes + in. For a disk based backend we needs to ensure that the base + directory exists (tho it doesn't need to be accessible by the user, + that comes later) +*/ +static NTSTATUS pvfs_connect(struct ntvfs_context *ctx, const char *sharename) +{ + struct stat st; + struct connection_struct *conn = ctx->conn; + NTSTATUS status; + + /* the directory must exist */ + if (stat(conn->connectpath, &st) != 0 || !S_ISDIR(st.st_mode)) { + DEBUG(0,("'%s' is not a directory, when connecting to [%s]\n", + conn->connectpath, lp_servicename(SNUM(conn)))); + return NT_STATUS_BAD_NETWORK_NAME; + } + + /* Initialise old VFS function pointers */ + if (!smbd_vfs_init(conn)) { + DEBUG(0, ("vfs_init failed for service %s\n", lp_servicename(SNUM(conn)))); + return NT_STATUS_BAD_NETWORK_NAME; + } + + /* become the user for the rest */ + status = ntvfs_change_to_user(ctx); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + /* the posix backend can do preexec */ + status = ntvfs_connect_preexec(ctx); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + /* Invoke the old POSIX VFS make connection hook */ + if (conn->vfs_ops.connect && + conn->vfs_ops.connect(conn, lp_servicename(snum), user) < 0) { + DEBUG(0,("make_connection: POSIX VFS make connection failed!\n")); + return NT_STATUS_UNSUCCESSFUL; + } + } + + + /* + * Print out the 'connected as' stuff here as we need + * to know the effective uid and gid we will be using + * (at least initially). + */ + if( DEBUGLVL( IS_IPC(conn) ? 3 : 1 ) ) { + dbgtext( "%s (%s) ", get_remote_machine_name(), conn->client_address ); + dbgtext( "connect to service %s ", lp_servicename(SNUM(conn)) ); + dbgtext( "initially as user %s ", user ); + dbgtext( "(uid=%d, gid=%d) ", (int)geteuid(), (int)getegid() ); + dbgtext( "(pid %d)\n", (int)sys_getpid() ); + } + + return NT_STATUS_OK; +} + +/* + disconnect from a share +*/ +static NTSTATUS pvfs_disconnect(struct ntvfs_context *ctx) +{ + return NT_STATUS_OK; +} + +/* + delete a file - the dirtype specifies the file types to include in the search. + The name can contain CIFS wildcards, but rarely does (except with OS/2 clients) +*/ +static NTSTATUS pvfs_unlink(struct ntvfs_context *ctx, const char *name, uint16 dirtype) +{ + NTSTATUS status; + + if (ntvfs_dfs_redirect(ctx, name)) { + return NT_STATUS_PATH_NOT_COVERED; + } + + status = unlink_internals(ctx->conn, dirtype, name); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + ntvfs_run_change_notify_queue(); + + return NT_STATUS_OK; +} + + + + + + + +/* + initialialise the POSIX disk backend, registering ourselves with the ntvfs subsystem + */ +BOOL posix_vfs_init(void) +{ + BOOL ret; + struct ntvfs_ops ops; + + ZERO_STRUCT(ops); + + /* fill in all the operations */ + ops.connect = pvfs_connect; + ops.disconnect = pvfs_disconnect; + ops.unlink = pvfs_unlink; + + /* register ourselves with the NTVFS subsystem. We register under the name 'default' + as we wish to be the default backend */ + ret = ntvfs_register("default", NTVFS_DISK, &ops); + + if (!ret) { + DEBUG(0,("Failed to register POSIX backend!\n")); + return False; + } + + return True; +} -- cgit