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NetBSD/usr.sbin/config/defs.h

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/* $NetBSD: defs.h,v 1.19 2004/06/04 23:44:35 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratories.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: @(#)config.h 8.1 (Berkeley) 6/6/93
*/
/*
* defs.h: Global definitions for "config"
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/types.h>
#include <sys/param.h>
#include <sys/queue.h>
#if !defined(MAKE_BOOTSTRAP) && defined(BSD)
#include <sys/cdefs.h>
#include <paths.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/* These are really for MAKE_BOOTSTRAP but harmless. */
#ifndef __dead
#define __dead
#endif
#ifndef _PATH_DEVNULL
#define _PATH_DEVNULL "/dev/null"
#endif
#ifdef MAKE_BOOTSTRAP
#undef dev_t
#undef NODEV
#undef major
#undef minor
#undef makedev
#define dev_t int /* XXX: assumes int is 32 bits */
#define NODEV ((dev_t)-1)
#define major(x) ((int)((((x) & 0x000fff00) >> 8)))
#define minor(x) ((int)((((x) & 0xfff00000) >> 12) | \
(((x) & 0x000000ff) >> 0)))
#define makedev(x,y) ((dev_t)((((x) << 8) & 0x000fff00) | \
(((y) << 12) & 0xfff00000) | \
(((y) << 0) & 0x000000ff)))
#define __attribute__(x)
#endif /* MAKE_BOOTSTRAP */
#undef setprogname
#undef getprogname
extern const char *progname;
#define setprogname(s) ((void)(progname = (s)))
#define getprogname() (progname)
#define ARRCHR '#'
/*
* Name/value lists. Values can be strings or pointers and/or can carry
* integers. The names can be NULL, resulting in simple value lists.
*/
struct nvlist {
struct nvlist *nv_next;
const char *nv_name;
union {
const char *un_str;
void *un_ptr;
} nv_un;
#define nv_str nv_un.un_str
#define nv_ptr nv_un.un_ptr
int nv_int;
int nv_ifunit; /* XXX XXX XXX */
int nv_flags;
#define NV_DEPENDED 1
};
/*
* Kernel configurations.
*/
struct config {
TAILQ_ENTRY(config) cf_next;
const char *cf_name; /* "netbsd" */
int cf_lineno; /* source line */
const char *cf_fstype; /* file system type */
struct nvlist *cf_root; /* "root on ra0a" */
struct nvlist *cf_swap; /* "swap on ra0b and ra1b" */
struct nvlist *cf_dump; /* "dumps on ra0b" */
};
/*
* Attributes. These come in three flavors: "plain", "device class,"
* and "interface". Plain attributes (e.g., "ether") simply serve
* to pull in files. Device class attributes are like plain
* attributes, but additionally specify a device class (e.g., the
* "disk" device class attribute specifies that devices with the
* attribute belong to the "DV_DISK" class) and are mutually exclusive.
* Interface attributes (e.g., "scsi") carry three lists: locators,
* child devices, and references. The locators are those things
* that must be specified in order to configure a device instance
* using this attribute (e.g., "tg0 at scsi0"). The a_devs field
* lists child devices that can connect here (e.g., "tg"s), while
* the a_refs are parents that carry the attribute (e.g., actual
* SCSI host adapter drivers such as the SPARC "esp").
*/
struct attr {
const char *a_name; /* name of this attribute */
int a_iattr; /* true => allows children */
const char *a_devclass; /* device class described */
struct nvlist *a_locs; /* locators required */
int a_loclen; /* length of above list */
struct nvlist *a_devs; /* children */
struct nvlist *a_refs; /* parents */
struct nvlist *a_deps; /* we depend on these other attrs */
int a_expanding; /* to detect cycles in attr graph */
};
/*
* Parent specification. Multiple device instances may share a
* given parent spec. Parent specs are emitted only if there are
* device instances which actually reference it.
*/
struct pspec {
TAILQ_ENTRY(pspec) p_list; /* link on parent spec list */
struct attr *p_iattr; /* interface attribute of parent */
struct devbase *p_atdev; /* optional parent device base */
int p_atunit; /* optional parent device unit */
struct nvlist *p_devs; /* children using it */
int p_inst; /* parent spec instance */
};
/*
* The "base" part (struct devbase) of a device ("uba", "sd"; but not
* "uba2" or "sd0"). It may be found "at" one or more attributes,
* including "at root" (this is represented by a NULL attribute), as
* specified by the device attachments (struct deva).
*
* Each device may also export attributes. If any provide an output
* interface (e.g., "esp" provides "scsi"), other devices (e.g.,
* "tg"s) can be found at instances of this one (e.g., "esp"s).
* Such a connection must provide locators as specified by that
* interface attribute (e.g., "target"). The base device can
* export both output (aka `interface') attributes, as well as
* import input (`plain') attributes. Device attachments may
* only import input attributes; it makes no sense to have a
* specific attachment export a new interface to other devices.
*
* Each base carries a list of instances (via d_ihead). Note that this
* list "skips over" aliases; those must be found through the instances
* themselves. Each base also carries a list of possible attachments,
* each of which specify a set of devices that the device can attach
* to, as well as the device instances that are actually using that
* attachment.
*/
struct devbase {
const char *d_name; /* e.g., "sd" */
TAILQ_ENTRY(devbase) d_next;
int d_isdef; /* set once properly defined */
int d_ispseudo; /* is a pseudo-device */
int d_major; /* used for "root on sd0", e.g. */
struct nvlist *d_attrs; /* attributes, if any */
int d_umax; /* highest unit number + 1 */
struct devi *d_ihead; /* first instance, if any */
struct devi **d_ipp; /* used for tacking on more instances */
struct deva *d_ahead; /* first attachment, if any */
struct deva **d_app; /* used for tacking on attachments */
struct attr *d_classattr; /* device class attribute (if any) */
};
struct deva {
const char *d_name; /* name of attachment, e.g. "com_isa" */
TAILQ_ENTRY(deva) d_next; /* list of all instances */
struct deva *d_bsame; /* list on same base */
int d_isdef; /* set once properly defined */
struct devbase *d_devbase; /* the base device */
struct nvlist *d_atlist; /* e.g., "at tg" (attr list) */
struct nvlist *d_attrs; /* attributes, if any */
struct devi *d_ihead; /* first instance, if any */
struct devi **d_ipp; /* used for tacking on more instances */
};
/*
* An "instance" of a device. The same instance may be listed more
* than once, e.g., "xx0 at isa? port FOO" + "xx0 at isa? port BAR".
*
* After everything has been read in and verified, the devi's are
* "packed" to collect all the information needed to generate ioconf.c.
* In particular, we try to collapse multiple aliases into a single entry.
* We then assign each "primary" (non-collapsed) instance a cfdata index.
* Note that there may still be aliases among these.
*/
struct devi {
/* created while parsing config file */
const char *i_name; /* e.g., "sd0" */
int i_unit; /* unit from name, e.g., 0 */
struct devbase *i_base;/* e.g., pointer to "sd" base */
TAILQ_ENTRY(devi) i_next; /* list of all instances */
struct devi *i_bsame; /* list on same base */
struct devi *i_asame; /* list on same base attachment */
struct devi *i_alias; /* other aliases of this instance */
const char *i_at; /* where this is "at" (NULL if at root) */
struct pspec *i_pspec; /* parent spec (NULL if at root) */
struct deva *i_atdeva;
const char **i_locs; /* locators (as given by pspec's iattr) */
int i_cfflags; /* flags from config line */
int i_lineno; /* line # in config, for later errors */
/* created during packing or ioconf.c generation */
short i_collapsed; /* set => this alias no longer needed */
short i_cfindex; /* our index in cfdata */
short i_locoff; /* offset in locators.vec */
};
/* special units */
#define STAR (-1) /* unit number for, e.g., "sd*" */
#define WILD (-2) /* unit number for, e.g., "sd?" */
/*
* Files. Each file is either standard (always included) or optional,
* depending on whether it has names on which to *be* optional. The
* options field (fi_optx) is actually an expression tree, with nodes
* for OR, AND, and NOT, as well as atoms (words) representing some
* particular option. The node type is stored in the nv_int field.
* Subexpressions appear in the `next' field; for the binary operators
* AND and OR, the left subexpression is first stored in the nv_ptr field.
*
* For any file marked as needs-count or needs-flag, fixfiles() will
* build fi_optf, a `flat list' of the options with nv_int fields that
* contain counts or `need' flags; this is used in mkheaders().
*/
struct files {
TAILQ_ENTRY(files) fi_next;
const char *fi_srcfile; /* the name of the "files" file that got us */
u_short fi_srcline; /* and the line number */
u_char fi_flags; /* as below */
char fi_lastc; /* last char from path */
const char *fi_path; /* full file path */
const char *fi_tail; /* name, i.e., strrchr(fi_path, '/') + 1 */
const char *fi_base; /* tail minus ".c" (or whatever) */
const char *fi_prefix; /* any file prefix */
struct nvlist *fi_optx;/* options expression */
struct nvlist *fi_optf;/* flattened version of above, if needed */
const char *fi_mkrule; /* special make rule, if any */
};
/* flags */
#define FI_SEL 0x01 /* selected */
#define FI_NEEDSCOUNT 0x02 /* needs-count */
#define FI_NEEDSFLAG 0x04 /* needs-flag */
#define FI_HIDDEN 0x08 /* obscured by other(s), base names overlap */
/*
* Objects and libraries. This allows precompiled object and library
* files (e.g. binary-only device drivers) to be linked in.
*/
struct objects {
TAILQ_ENTRY(objects) oi_next;
const char *oi_srcfile; /* the name of the "objects" file that got us */
u_short oi_srcline; /* and the line number */
u_char oi_flags; /* as below */
char oi_lastc; /* last char from path */
const char *oi_path; /* full object path */
const char *oi_prefix; /* any file prefix */
struct nvlist *oi_optx;/* options expression */
struct nvlist *oi_optf;/* flattened version of above, if needed */
};
/* flags */
#define OI_SEL 0x01 /* selected */
#define OI_NEEDSFLAG 0x02 /* needs-flag */
#define FX_ATOM 0 /* atom (in nv_name) */
#define FX_NOT 1 /* NOT expr (subexpression in nv_next) */
#define FX_AND 2 /* AND expr (lhs in nv_ptr, rhs in nv_next) */
#define FX_OR 3 /* OR expr (lhs in nv_ptr, rhs in nv_next) */
/*
* File/object prefixes. These are arranged in a stack, and affect
* the behavior of the source path.
*/
struct prefix {
SLIST_ENTRY(prefix) pf_next; /* next prefix in stack */
const char *pf_prefix; /* the actual prefix */
};
/*
* Device major informations.
*/
struct devm {
TAILQ_ENTRY(devm) dm_next;
const char *dm_srcfile; /* the name of the "majors" file */
u_short dm_srcline; /* the line number */
const char *dm_name; /* [bc]devsw name */
int dm_cmajor; /* character major */
int dm_bmajor; /* block major */
struct nvlist *dm_opts; /* options */
};
/*
* Hash tables look up name=value pairs. The pointer value of the name
* is assumed to be constant forever; this can be arranged by interning
* the name. (This is fairly convenient since our lexer does this for
* all identifier-like strings---it has to save them anyway, lest yacc's
* look-ahead wipe out the current one.)
*/
struct hashtab;
const char *conffile; /* source file, e.g., "GENERIC.sparc" */
const char *machine; /* machine type, e.g., "sparc" or "sun3" */
const char *machinearch; /* machine arch, e.g., "sparc" or "m68k" */
struct nvlist *machinesubarches;
/* machine subarches, e.g., "sun68k" or "hpc" */
const char *srcdir; /* path to source directory (rel. to build) */
const char *builddir; /* path to build directory */
const char *defbuilddir; /* default build directory */
const char *ident; /* kernel "ident"ification string */
int errors; /* counts calls to error() */
int minmaxusers; /* minimum "maxusers" parameter */
int defmaxusers; /* default "maxusers" parameter */
int maxmaxusers; /* default "maxusers" parameter */
int maxusers; /* configuration's "maxusers" parameter */
int maxpartitions; /* configuration's "maxpartitions" parameter */
struct nvlist *options; /* options */
struct nvlist *fsoptions; /* filesystems */
struct nvlist *mkoptions; /* makeoptions */
struct nvlist *appmkoptions; /* appending mkoptions */
struct hashtab *condmkopttab; /* conditional makeoption table */
struct hashtab *devbasetab; /* devbase lookup */
struct hashtab *devatab; /* devbase attachment lookup */
struct hashtab *devitab; /* device instance lookup */
struct hashtab *selecttab; /* selects things that are "optional foo" */
struct hashtab *needcnttab; /* retains names marked "needs-count" */
struct hashtab *opttab; /* table of configured options */
struct hashtab *fsopttab; /* table of configured file systems */
struct hashtab *defopttab; /* options that have been "defopt"'d */
struct hashtab *defflagtab; /* options that have been "defflag"'d */
struct hashtab *defparamtab; /* options that have been "defparam"'d */
struct hashtab *deffstab; /* defined file systems */
struct hashtab *optfiletab; /* "defopt"'d option .h files */
struct hashtab *attrtab; /* attributes (locators, etc.) */
struct hashtab *bdevmtab; /* block devm lookup */
struct hashtab *cdevmtab; /* character devm lookup */
TAILQ_HEAD(, devbase) allbases; /* list of all devbase structures */
TAILQ_HEAD(, deva) alldevas; /* list of all devbase attachments */
TAILQ_HEAD(, config) allcf; /* list of configured kernels */
TAILQ_HEAD(, devi) alldevi, /* list of all instances */
allpseudo; /* list of all pseudo-devices */
TAILQ_HEAD(, devm) alldevms; /* list of all device-majors */
TAILQ_HEAD(, pspec) allpspecs; /* list of all parent specs */
int ndevi; /* number of devi's (before packing) */
int npspecs; /* number of parent specs */
int maxbdevm; /* max number of block major */
int maxcdevm; /* max number of character major */
int do_devsw; /* 0 if pre-devsw config */
TAILQ_HEAD(, files) allfiles; /* list of all kernel source files */
TAILQ_HEAD(, objects) allobjects; /* list of all kernel object and
library files */
SLIST_HEAD(, prefix) prefixes, /* prefix stack */
allprefixes; /* all prefixes used (after popped) */
SLIST_HEAD(, prefix) curdirs; /* curdir stack */
struct devi **packed; /* arrayified table for packed devi's */
int npacked; /* size of packed table, <= ndevi */
struct { /* loc[] table for config */
const char **vec;
int used;
} locators;
struct numconst {
int64_t val;
int fmt;
};
/* files.c */
void initfiles(void);
void checkfiles(void);
int fixfiles(void); /* finalize */
int fixobjects(void);
int fixdevsw(void);
void addfile(const char *, struct nvlist *, int, const char *);
void addobject(const char *, struct nvlist *, int);
/* hash.c */
struct hashtab *ht_new(void);
int ht_insrep(struct hashtab *, const char *, void *, int);
#define ht_insert(ht, nam, val) ht_insrep(ht, nam, val, 0)
#define ht_replace(ht, nam, val) ht_insrep(ht, nam, val, 1)
int ht_remove(struct hashtab *, const char *);
void *ht_lookup(struct hashtab *, const char *);
void initintern(void);
const char *intern(const char *);
typedef int (*ht_callback)(const char *, void *, void *);
int ht_enumerate(struct hashtab *, ht_callback, void *);
/* main.c */
void addoption(const char *, const char *);
void addfsoption(const char *);
void addmkoption(const char *, const char *);
void appendmkoption(const char *, const char *);
void appendcondmkoption(const char *, const char *, const char *);
void deffilesystem(const char *, struct nvlist *);
void defoption(const char *, struct nvlist *, struct nvlist *);
void defflag(const char *, struct nvlist *, struct nvlist *);
void defparam(const char *, struct nvlist *, struct nvlist *);
void deloption(const char *);
void delfsoption(const char *);
void delmkoption(const char *);
int devbase_has_instances(struct devbase *, int);
struct nvlist * find_declared_option(const char *);
int deva_has_instances(struct deva *, int);
void setupdirs(void);
/* tests on option types */
#define OPT_FSOPT(n) (ht_lookup(deffstab, (n)) != NULL)
#define OPT_DEFOPT(n) (ht_lookup(defopttab, (n)) != NULL)
#define OPT_DEFFLAG(n) (ht_lookup(defflagtab, (n)) != NULL)
#define OPT_DEFPARAM(n) (ht_lookup(defparamtab, (n)) != NULL)
#define DEFINED_OPTION(n) (find_declared_option((n)) != NULL)
/* main.c */
void logconfig_include(FILE *, const char *);
/* mkdevsw.c */
int mkdevsw(void);
/* mkheaders.c */
int mkheaders(void);
int moveifchanged(const char *, const char *);
/* mkioconf.c */
int mkioconf(void);
/* mkmakefile.c */
int mkmakefile(void);
/* mkswap.c */
int mkswap(void);
/* pack.c */
void pack(void);
/* scan.l */
int currentline(void);
int firstfile(const char *);
void package(const char *);
int include(const char *, int, int, int);
/* sem.c, other than for yacc actions */
void initsem(void);
/* util.c */
void *ecalloc(size_t, size_t);
void *emalloc(size_t);
void *erealloc(void *, size_t);
char *estrdup(const char *);
void prefix_push(const char *);
void prefix_pop(void);
char *sourcepath(const char *);
void warn(const char *, ...) /* immediate warns */
__attribute__((__format__(__printf__, 1, 2)));
void error(const char *, ...) /* immediate errs */
__attribute__((__format__(__printf__, 1, 2)));
void xerror(const char *, int, const char *, ...) /* delayed errs */
__attribute__((__format__(__printf__, 3, 4)));
__dead void panic(const char *, ...)
__attribute__((__format__(__printf__, 1, 2)));
struct nvlist *newnv(const char *, const char *, void *, int, struct nvlist *);
void nvfree(struct nvlist *);
void nvfreel(struct nvlist *);
/* liby */
void yyerror(const char *);
int yylex(void);
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