* Auditing VFS module for samba. Log selected file operations to syslog
* facility.
*
- * Copyright (C) Tim Potter, 1999-2001
+ * Copyright (C) Tim Potter, 1999-2000
+ * Copyright (C) Alexander Bokovoy, 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
#define SYSLOG_PRIORITY LOG_NOTICE
#endif
-static struct vfs_ops default_vfs_ops;
+/* 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);
+
+/* 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[] = {
+
+ /* Disk operations */
+
+ {audit_connect, SMB_VFS_OP_CONNECT, SMB_VFS_LAYER_LOGGER},
+ {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},
+
+ /* 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},
+
+ /* Finish VFS operations definition */
+
+ {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
+};
+
+/* VFS initialisation function. Return vfs_op_tuple array back to SAMBA. */
+
+vfs_op_tuple *vfs_init(int *vfs_version, struct vfs_ops *def_vfs_ops,
+ struct smb_vfs_handle_struct *vfs_handle)
+{
+ *vfs_version = SMB_VFS_INTERFACE_VERSION;
+ memcpy(&default_vfs_ops, def_vfs_ops, sizeof(struct vfs_ops));
+
+ audit_handle = vfs_handle;
+
+ openlog("smbd_audit", LOG_PID, SYSLOG_FACILITY);
+ syslog(SYSLOG_PRIORITY, "VFS_INIT: vfs_ops loaded\n");
+ return audit_ops;
+}
+
+/* VFS finalization function. */
+void vfs_done(connection_struct *conn)
+{
+ syslog(SYSLOG_PRIORITY, "VFS_DONE: vfs module unloaded\n");
+}
/* 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(struct connection_struct *conn, const char *svc, const char *user)
{
syslog(SYSLOG_PRIORITY, "connect to service %s by user %s\n",
svc, user);
- return 0; /* Success */
+ return default_vfs_ops.connect(conn, svc, user);
}
static void audit_disconnect(struct connection_struct *conn)
{
syslog(SYSLOG_PRIORITY, "disconnected\n");
+ default_vfs_ops.disconnect(conn);
}
static DIR *audit_opendir(struct connection_struct *conn, const char *fname)
return result;
}
-static int audit_mkdir(struct connection_struct *conn, const char *path,
- mode_t mode)
+static int audit_mkdir(struct connection_struct *conn, const char *path, mode_t mode)
{
int result = default_vfs_ops.mkdir(conn, path, mode);
return result;
}
-static int audit_open(struct connection_struct *conn, const char *fname,
- int flags, mode_t mode)
+static int audit_open(struct connection_struct *conn, const char *fname, int flags, mode_t mode)
{
int result = default_vfs_ops.open(conn, fname, flags, mode);
return result;
}
-static int audit_rename(struct connection_struct *conn, const char *old,
- const char *new)
+static int audit_rename(struct connection_struct *conn, const char *old, const char *new)
{
int result = default_vfs_ops.rename(conn, old, new);
return result;
}
-static int audit_chmod(struct connection_struct *conn, const char *path,
- mode_t mode)
+static int audit_chmod(struct connection_struct *conn, const char *path, mode_t mode)
{
int result = default_vfs_ops.chmod(conn, path, mode);
return result;
}
-/* VFS initialisation function. Return initialised vfs_ops structure
- back to SAMBA. */
-
-struct vfs_ops *vfs_init(int *vfs_version, struct vfs_ops *ops)
+static int audit_chmod_acl(struct connection_struct *conn, const char *path, mode_t mode)
{
- *vfs_version = SMB_VFS_INTERFACE_VERSION;
+ int result = default_vfs_ops.chmod_acl(conn, path, mode);
- openlog("smbd_audit", LOG_PID, SYSLOG_FACILITY);
- syslog(SYSLOG_PRIORITY, "initialised\n");
+ syslog(SYSLOG_PRIORITY, "chmod_acl %s mode 0x%x %s%s\n",
+ path, mode,
+ (result < 0) ? "failed: " : "",
+ (result < 0) ? strerror(errno) : "");
- /* Save a copy of the default ops */
+ return result;
+}
+
+static int audit_fchmod(struct files_struct *fsp, int fd, mode_t mode)
+{
+ int result = default_vfs_ops.fchmod(fsp, fd, mode);
+
+ syslog(SYSLOG_PRIORITY, "fchmod %s mode 0x%x %s%s\n",
+ fsp->fsp_name, mode,
+ (result < 0) ? "failed: " : "",
+ (result < 0) ? strerror(errno) : "");
- default_vfs_ops = *ops;
+ return result;
+}
- /* Override our ones */
+static int audit_fchmod_acl(struct files_struct *fsp, int fd, mode_t mode)
+{
+ int result = default_vfs_ops.fchmod_acl(fsp, fd, mode);
- ops->connect = audit_connect;
- ops->disconnect = audit_disconnect;
- ops->opendir = audit_opendir;
- ops->mkdir = audit_mkdir;
- ops->rmdir = audit_rmdir;
- ops->open = audit_open;
- ops->close = audit_close;
- ops->rename = audit_rename;
- ops->unlink = audit_unlink;
- ops->chmod = audit_chmod;
+ syslog(SYSLOG_PRIORITY, "fchmod_acl %s mode 0x%x %s%s\n",
+ fsp->fsp_name, mode,
+ (result < 0) ? "failed: " : "",
+ (result < 0) ? strerror(errno) : "");
- return(ops);
+ return result;
}
git.samba.org / sfrench / samba-autobuild / .git / blobdiff