* Auditing VFS module for samba. Log selected file operations to syslog
* facility.
*
- * Copyright (C) Tim Potter, 1999-2000
- * Copyright (C) Alexander Bokovoy, 2002
+ * Copyright (C) Tim Potter 1999-2000
+ * Copyright (C) Alexander Bokovoy 2002
+ * Copyright (C) Stefan (metze) Metzmacher 2002
*
* 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
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include "config.h"
-#include <stdio.h>
-#include <sys/stat.h>
-#ifdef HAVE_UTIME_H
-#include <utime.h>
-#endif
-#ifdef HAVE_DIRENT_H
-#include <dirent.h>
-#endif
-#include <syslog.h>
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-#include <errno.h>
-#include <string.h>
-#include <includes.h>
-#include <vfs.h>
-
-#ifndef SYSLOG_FACILITY
-#define SYSLOG_FACILITY LOG_USER
-#endif
-
-#ifndef SYSLOG_PRIORITY
-#define SYSLOG_PRIORITY LOG_NOTICE
-#endif
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_VFS
/* Function prototypes */
-static int audit_connect(struct connection_struct *conn, const char *svc, const char *user);
-static void audit_disconnect(struct connection_struct *conn);
-static DIR *audit_opendir(struct connection_struct *conn, const char *fname);
-static int audit_mkdir(struct connection_struct *conn, const char *path, mode_t mode);
-static int audit_rmdir(struct connection_struct *conn, const char *path);
-static int audit_open(struct connection_struct *conn, const char *fname, int flags, mode_t mode);
-static int audit_close(struct files_struct *fsp, int fd);
-static int audit_rename(struct connection_struct *conn, const char *old, const char *new);
-static int audit_unlink(struct connection_struct *conn, const char *path);
-static int audit_chmod(struct connection_struct *conn, const char *path, mode_t mode);
-static int audit_chmod_acl(struct connection_struct *conn, const char *name, mode_t mode);
-static int audit_fchmod(struct files_struct *fsp, int fd, mode_t mode);
-static int audit_fchmod_acl(struct files_struct *fsp, int fd, mode_t mode);
+static int audit_connect(vfs_handle_struct *handle, connection_struct *conn, const char *svc, const char *user);
+static void audit_disconnect(vfs_handle_struct *handle, connection_struct *conn);
+static DIR *audit_opendir(vfs_handle_struct *handle, connection_struct *conn, const char *fname);
+static int audit_mkdir(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode);
+static int audit_rmdir(vfs_handle_struct *handle, connection_struct *conn, const char *path);
+static int audit_open(vfs_handle_struct *handle, connection_struct *conn, const char *fname, int flags, mode_t mode);
+static int audit_close(vfs_handle_struct *handle, files_struct *fsp, int fd);
+static int audit_rename(vfs_handle_struct *handle, connection_struct *conn, const char *old, const char *new);
+static int audit_unlink(vfs_handle_struct *handle, connection_struct *conn, const char *path);
+static int audit_chmod(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode);
+static int audit_chmod_acl(vfs_handle_struct *handle, connection_struct *conn, const char *name, mode_t mode);
+static int audit_fchmod(vfs_handle_struct *handle, files_struct *fsp, int fd, mode_t mode);
+static int audit_fchmod_acl(vfs_handle_struct *handle, files_struct *fsp, int fd, mode_t mode);
/* VFS operations */
-static struct vfs_ops default_vfs_ops; /* For passthrough operation */
-static struct smb_vfs_handle_struct *audit_handle;
-
-static vfs_op_tuple audit_ops[] = {
+static vfs_op_tuple audit_op_tuples[] = {
/* Disk operations */
- {audit_connect, SMB_VFS_OP_CONNECT, SMB_VFS_LAYER_LOGGER},
- {audit_disconnect, SMB_VFS_OP_DISCONNECT, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_connect), SMB_VFS_OP_CONNECT, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_disconnect), SMB_VFS_OP_DISCONNECT, SMB_VFS_LAYER_LOGGER},
/* Directory operations */
- {audit_opendir, SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_LOGGER},
- {audit_mkdir, SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_LOGGER},
- {audit_rmdir, SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_opendir), SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_mkdir), SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_rmdir), SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_LOGGER},
/* File operations */
- {audit_open, SMB_VFS_OP_OPEN, SMB_VFS_LAYER_LOGGER},
- {audit_close, SMB_VFS_OP_CLOSE, SMB_VFS_LAYER_LOGGER},
- {audit_rename, SMB_VFS_OP_RENAME, SMB_VFS_LAYER_LOGGER},
- {audit_unlink, SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_LOGGER},
- {audit_chmod, SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_LOGGER},
- {audit_fchmod, SMB_VFS_OP_FCHMOD, SMB_VFS_LAYER_LOGGER},
- {audit_chmod_acl, SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_LOGGER},
- {audit_fchmod_acl, SMB_VFS_OP_FCHMOD_ACL, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_open), SMB_VFS_OP_OPEN, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_close), SMB_VFS_OP_CLOSE, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_rename), SMB_VFS_OP_RENAME, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_unlink), SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_chmod), SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_fchmod), SMB_VFS_OP_FCHMOD, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_chmod_acl), SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_LOGGER},
+ {SMB_VFS_OP(audit_fchmod_acl), SMB_VFS_OP_FCHMOD_ACL, SMB_VFS_LAYER_LOGGER},
/* Finish VFS operations definition */
- {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
+ {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
};
-/* VFS initialisation function. Return vfs_op_tuple array back to SAMBA. */
-static vfs_op_tuple *audit_init(const struct vfs_ops *def_vfs_ops,
- struct smb_vfs_handle_struct *vfs_handle)
+static int audit_syslog_facility(vfs_handle_struct *handle)
{
- memcpy(&default_vfs_ops, def_vfs_ops, sizeof(struct vfs_ops));
-
- audit_handle = vfs_handle;
+ /* fix me: let this be configurable by:
+ * lp_param_enum(SNUM(handle->conn),(handle->param?handle->param:"audit"),"syslog facility",
+ * audit_enum_facility,LOG_USER);
+ */
+ return LOG_USER;
+}
- openlog("smbd_audit", LOG_PID, SYSLOG_FACILITY);
- syslog(SYSLOG_PRIORITY, "VFS_INIT: vfs_ops loaded\n");
- return audit_ops;
+
+static int audit_syslog_priority(vfs_handle_struct *handle)
+{
+ /* fix me: let this be configurable by:
+ * lp_param_enum(SNUM(handle->conn),(handle->param?handle->param:"audit"),"syslog priority",
+ * audit_enum_priority,LOG_NOTICE);
+ */
+ return LOG_NOTICE;
}
/* Implementation of vfs_ops. Pass everything on to the default
operation but log event first. */
-static int audit_connect(struct connection_struct *conn, const char *svc, const char *user)
+static int audit_connect(vfs_handle_struct *handle, connection_struct *conn, const char *svc, const char *user)
{
- syslog(SYSLOG_PRIORITY, "connect to service %s by user %s\n",
+ int result;
+
+ openlog("smbd_audit", LOG_PID, audit_syslog_facility(handle));
+
+ syslog(audit_syslog_priority(handle), "connect to service %s by user %s\n",
svc, user);
- return default_vfs_ops.connect(conn, svc, user);
+ result = SMB_VFS_NEXT_CONNECT(handle, conn, svc, user);
+
+ return result;
}
-static void audit_disconnect(struct connection_struct *conn)
+static void audit_disconnect(vfs_handle_struct *handle, connection_struct *conn)
{
- syslog(SYSLOG_PRIORITY, "disconnected\n");
- default_vfs_ops.disconnect(conn);
+ syslog(audit_syslog_priority(handle), "disconnected\n");
+ SMB_VFS_NEXT_DISCONNECT(handle, conn);
+
+ return;
}
-static DIR *audit_opendir(struct connection_struct *conn, const char *fname)
+static DIR *audit_opendir(vfs_handle_struct *handle, connection_struct *conn, const char *fname)
{
- DIR *result = default_vfs_ops.opendir(conn, fname);
+ DIR *result;
+
+ result = SMB_VFS_NEXT_OPENDIR(handle, conn, fname);
- syslog(SYSLOG_PRIORITY, "opendir %s %s%s\n",
+ syslog(audit_syslog_priority(handle), "opendir %s %s%s\n",
fname,
(result == NULL) ? "failed: " : "",
(result == NULL) ? strerror(errno) : "");
return result;
}
-static int audit_mkdir(struct connection_struct *conn, const char *path, mode_t mode)
+static int audit_mkdir(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode)
{
- int result = default_vfs_ops.mkdir(conn, path, mode);
-
- syslog(SYSLOG_PRIORITY, "mkdir %s %s%s\n",
+ int result;
+
+ result = SMB_VFS_NEXT_MKDIR(handle, conn, path, mode);
+
+ syslog(audit_syslog_priority(handle), "mkdir %s %s%s\n",
path,
(result < 0) ? "failed: " : "",
(result < 0) ? strerror(errno) : "");
return result;
}
-static int audit_rmdir(struct connection_struct *conn, const char *path)
+static int audit_rmdir(vfs_handle_struct *handle, connection_struct *conn, const char *path)
{
- int result = default_vfs_ops.rmdir(conn, path);
+ int result;
+
+ result = SMB_VFS_NEXT_RMDIR(handle, conn, path);
- syslog(SYSLOG_PRIORITY, "rmdir %s %s%s\n",
+ syslog(audit_syslog_priority(handle), "rmdir %s %s%s\n",
path,
(result < 0) ? "failed: " : "",
(result < 0) ? strerror(errno) : "");
return result;
}
-static int audit_open(struct connection_struct *conn, const char *fname, int flags, mode_t mode)
+static int audit_open(vfs_handle_struct *handle, connection_struct *conn, const char *fname, int flags, mode_t mode)
{
- int result = default_vfs_ops.open(conn, fname, flags, mode);
+ int result;
+
+ result = SMB_VFS_NEXT_OPEN(handle, conn, fname, flags, mode);
- syslog(SYSLOG_PRIORITY, "open %s (fd %d) %s%s%s\n",
+ syslog(audit_syslog_priority(handle), "open %s (fd %d) %s%s%s\n",
fname, result,
((flags & O_WRONLY) || (flags & O_RDWR)) ? "for writing " : "",
(result < 0) ? "failed: " : "",
return result;
}
-static int audit_close(struct files_struct *fsp, int fd)
+static int audit_close(vfs_handle_struct *handle, files_struct *fsp, int fd)
{
- int result = default_vfs_ops.close(fsp, fd);
+ int result;
+
+ result = SMB_VFS_NEXT_CLOSE(handle, fsp, fd);
- syslog(SYSLOG_PRIORITY, "close fd %d %s%s\n",
+ syslog(audit_syslog_priority(handle), "close fd %d %s%s\n",
fd,
(result < 0) ? "failed: " : "",
(result < 0) ? strerror(errno) : "");
return result;
}
-static int audit_rename(struct connection_struct *conn, const char *old, const char *new)
+static int audit_rename(vfs_handle_struct *handle, connection_struct *conn, const char *old, const char *new)
{
- int result = default_vfs_ops.rename(conn, old, new);
+ int result;
+
+ result = SMB_VFS_NEXT_RENAME(handle, conn, old, new);
- syslog(SYSLOG_PRIORITY, "rename %s -> %s %s%s\n",
+ syslog(audit_syslog_priority(handle), "rename %s -> %s %s%s\n",
old, new,
(result < 0) ? "failed: " : "",
(result < 0) ? strerror(errno) : "");
return result;
}
-static int audit_unlink(struct connection_struct *conn, const char *path)
+static int audit_unlink(vfs_handle_struct *handle, connection_struct *conn, const char *path)
{
- int result = default_vfs_ops.unlink(conn, path);
+ int result;
+
+ result = SMB_VFS_NEXT_UNLINK(handle, conn, path);
- syslog(SYSLOG_PRIORITY, "unlink %s %s%s\n",
+ syslog(audit_syslog_priority(handle), "unlink %s %s%s\n",
path,
(result < 0) ? "failed: " : "",
(result < 0) ? strerror(errno) : "");
return result;
}
-static int audit_chmod(struct connection_struct *conn, const char *path, mode_t mode)
+static int audit_chmod(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode)
{
- int result = default_vfs_ops.chmod(conn, path, mode);
+ int result;
+
+ result = SMB_VFS_NEXT_CHMOD(handle, conn, path, mode);
- syslog(SYSLOG_PRIORITY, "chmod %s mode 0x%x %s%s\n",
+ syslog(audit_syslog_priority(handle), "chmod %s mode 0x%x %s%s\n",
path, mode,
(result < 0) ? "failed: " : "",
(result < 0) ? strerror(errno) : "");
return result;
}
-static int audit_chmod_acl(struct connection_struct *conn, const char *path, mode_t mode)
+static int audit_chmod_acl(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode)
{
int result;
- if ( !default_vfs_ops.chmod_acl )
- return 0;
+ result = SMB_VFS_NEXT_CHMOD_ACL(handle, conn, path, mode);
- result = default_vfs_ops.chmod_acl(conn, path, mode);
-
- syslog(SYSLOG_PRIORITY, "chmod_acl %s mode 0x%x %s%s\n",
+ syslog(audit_syslog_priority(handle), "chmod_acl %s mode 0x%x %s%s\n",
path, mode,
(result < 0) ? "failed: " : "",
(result < 0) ? strerror(errno) : "");
return result;
}
-static int audit_fchmod(struct files_struct *fsp, int fd, mode_t mode)
+static int audit_fchmod(vfs_handle_struct *handle, files_struct *fsp, int fd, mode_t mode)
{
- int result = default_vfs_ops.fchmod(fsp, fd, mode);
+ int result;
- syslog(SYSLOG_PRIORITY, "fchmod %s mode 0x%x %s%s\n",
+ result = SMB_VFS_NEXT_FCHMOD(handle, fsp, fd, mode);
+
+ syslog(audit_syslog_priority(handle), "fchmod %s mode 0x%x %s%s\n",
fsp->fsp_name, mode,
(result < 0) ? "failed: " : "",
(result < 0) ? strerror(errno) : "");
return result;
}
-static int audit_fchmod_acl(struct files_struct *fsp, int fd, mode_t mode)
+static int audit_fchmod_acl(vfs_handle_struct *handle, files_struct *fsp, int fd, mode_t mode)
{
int result;
- if ( !default_vfs_ops.fchmod_acl )
- return 0;
-
- result = default_vfs_ops.fchmod_acl(fsp, fd, mode);
+ result = SMB_VFS_NEXT_FCHMOD_ACL(handle, fsp, fd, mode);
- syslog(SYSLOG_PRIORITY, "fchmod_acl %s mode 0x%x %s%s\n",
+ syslog(audit_syslog_priority(handle), "fchmod_acl %s mode 0x%x %s%s\n",
fsp->fsp_name, mode,
(result < 0) ? "failed: " : "",
(result < 0) ? strerror(errno) : "");
NTSTATUS vfs_audit_init(void)
{
- return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "audit", audit_init);
+ return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "audit", audit_op_tuples);
}
git.samba.org / kai / samba.git / blobdiff