2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
237 lines
7 KiB
C
237 lines
7 KiB
C
/* $NetBSD: nsswitch.h,v 1.20 2008/04/28 20:22:54 martin Exp $ */
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/*-
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* Copyright (c) 1997, 1998, 1999, 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _NSSWITCH_H
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#define _NSSWITCH_H 1
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/*
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* Don't use va_list in prototypes. va_list is typedef'd in two places
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* (<machine/varargs.h> and <machine/stdarg.h>), so if we include one of
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* them here we may collide with the utility's includes. It's unreasonable
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* for utilities to have to include one of them to include nsswitch.h, so
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* we get _BSD_VA_LIST_ from <machine/ansi.h> and use it.
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*/
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#include <machine/ansi.h>
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#include <sys/types.h>
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#define NSS_MODULE_INTERFACE_VERSION 0
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#ifndef _PATH_NS_CONF
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#define _PATH_NS_CONF "/etc/nsswitch.conf"
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#endif
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#define NS_CONTINUE 0
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#define NS_RETURN 1
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/*
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* Layout of:
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* uint32_t ns_src.flags
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*/
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/* nsswitch.conf status codes and nsdispatch(3) return values */
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#define NS_SUCCESS (1<<0) /* entry was found */
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#define NS_UNAVAIL (1<<1) /* source not responding, or corrupt */
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#define NS_NOTFOUND (1<<2) /* source responded 'no such entry' */
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#define NS_TRYAGAIN (1<<3) /* source busy, may respond to retrys */
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#define NS_STATUSMASK 0x000000ff /* bitmask to get the status flags */
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/* internal nsdispatch(3) flags; not settable in nsswitch.conf(5) */
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#define NS_FORCEALL (1<<8) /* force all methods to be invoked; */
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/*
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* Currently implemented sources.
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*/
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#define NSSRC_FILES "files" /* local files */
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#define NSSRC_DNS "dns" /* DNS; IN for hosts, HS for others */
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#define NSSRC_NIS "nis" /* YP/NIS */
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#define NSSRC_COMPAT "compat" /* passwd,group in YP compat mode */
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/*
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* Currently implemented databases.
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*/
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#define NSDB_HOSTS "hosts"
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#define NSDB_GROUP "group"
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#define NSDB_GROUP_COMPAT "group_compat"
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#define NSDB_NETGROUP "netgroup"
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#define NSDB_NETWORKS "networks"
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#define NSDB_PASSWD "passwd"
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#define NSDB_PASSWD_COMPAT "passwd_compat"
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#define NSDB_SHELLS "shells"
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/*
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* Suggested databases to implement.
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*/
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#define NSDB_ALIASES "aliases"
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#define NSDB_AUTH "auth"
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#define NSDB_AUTOMOUNT "automount"
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#define NSDB_BOOTPARAMS "bootparams"
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#define NSDB_ETHERS "ethers"
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#define NSDB_EXPORTS "exports"
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#define NSDB_NETMASKS "netmasks"
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#define NSDB_PHONES "phones"
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#define NSDB_PRINTCAP "printcap"
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#define NSDB_PROTOCOLS "protocols"
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#define NSDB_REMOTE "remote"
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#define NSDB_RPC "rpc"
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#define NSDB_SENDMAILVARS "sendmailvars"
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#define NSDB_SERVICES "services"
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#define NSDB_TERMCAP "termcap"
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#define NSDB_TTYS "ttys"
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/*
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* ns_dtab `callback' function signature.
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*/
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typedef int (*nss_method)(void *, void *, _BSD_VA_LIST_);
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/*
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* ns_dtab - `nsswitch dispatch table'
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* Contains an entry for each source and the appropriate function to call.
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*/
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typedef struct {
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const char *src;
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nss_method callback;
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void *cb_data;
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} ns_dtab;
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/*
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* Macros to help build an ns_dtab[]
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*/
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#define NS_FILES_CB(F,C) { NSSRC_FILES, F, __UNCONST(C) },
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#define NS_COMPAT_CB(F,C) { NSSRC_COMPAT, F, __UNCONST(C) },
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#ifdef HESIOD
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# define NS_DNS_CB(F,C) { NSSRC_DNS, F, __UNCONST(C) },
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#else
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# define NS_DNS_CB(F,C)
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#endif
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#ifdef YP
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# define NS_NIS_CB(F,C) { NSSRC_NIS, F, __UNCONST(C) },
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#else
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# define NS_NIS_CB(F,C)
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#endif
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#define NS_NULL_CB { .src = NULL },
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/*
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* ns_src - `nsswitch source'
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* Used by the nsparser routines to store a mapping between a source
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* and its dispatch control flags for a given database.
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*/
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typedef struct {
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const char *name;
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uint32_t flags;
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} ns_src;
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/*
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* Default sourcelists (if nsswitch.conf is missing, corrupt,
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* or the requested database doesn't have an entry)
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*/
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extern const ns_src __nsdefaultsrc[];
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extern const ns_src __nsdefaultcompat[];
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extern const ns_src __nsdefaultcompat_forceall[];
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extern const ns_src __nsdefaultfiles[];
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extern const ns_src __nsdefaultfiles_forceall[];
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extern const ns_src __nsdefaultnis[];
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extern const ns_src __nsdefaultnis_forceall[];
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/*
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* ns_mtab - `nsswitch method table'
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* An nsswitch module provides a mapping from (database name, method name)
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* tuples to the nss_method and associated callback data. Effectively,
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* ns_dtab, but used for dynamically loaded modules.
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*/
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typedef struct {
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const char *database;
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const char *name;
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nss_method method;
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void *mdata;
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} ns_mtab;
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/*
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* nss_module_register_fn - module registration function
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* called at module load
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* nss_module_unregister_fn - module un-registration function
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* called at module unload
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*/
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typedef void (*nss_module_unregister_fn)(ns_mtab *, u_int);
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typedef ns_mtab *(*nss_module_register_fn)(const char *, u_int *,
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nss_module_unregister_fn *);
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#ifdef _NS_PRIVATE
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/*
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* Private data structures for back-end nsswitch implementation.
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*/
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/*
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* ns_dbt - `nsswitch database thang'
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* For each database in /etc/nsswitch.conf there is a ns_dbt, with its
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* name and a list of ns_src's containing the source information.
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*/
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typedef struct {
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const char *name; /* name of database */
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ns_src *srclist; /* list of sources */
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u_int srclistsize; /* size of srclist */
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} ns_dbt;
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/*
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* ns_mod - `nsswitch module'
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*/
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typedef struct {
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const char *name; /* module name */
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void *handle; /* handle from dlopen() */
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ns_mtab *mtab; /* method table */
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u_int mtabsize; /* size of mtab */
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/* called to unload module */
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nss_module_unregister_fn unregister;
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} ns_mod;
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#endif /* _NS_PRIVATE */
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int nsdispatch(void *, const ns_dtab [], const char *,
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const char *, const ns_src [], ...);
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#ifdef _NS_PRIVATE
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int _nsdbtaddsrc(ns_dbt *, const ns_src *);
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void _nsdbtdump(const ns_dbt *);
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int _nsdbtput(const ns_dbt *);
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void _nsyyerror(const char *);
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int _nsyylex(void);
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#endif /* _NS_PRIVATE */
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__END_DECLS
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#endif /* !_NSSWITCH_H */
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