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Changes to config(8) to support dump configuration in the wake of the

Browse Source 
new swap system.  The dump specification syntax is now more flexible,
and supports constructs like the following:

config netbsd root on ? type ? dumps on ?
	- wildcarded root, fstype, and dump device

config netbsd root on ? type ffs dumps on sd0b
	- wildcarded root, ffs root fs, always dump on sd0b

config netbsd root on de0 type nfs dumps on wd0b
	- mount an nfs root using de0, and write kernel crash dumps
	  to wd0b

Also, garbage-collect some now unused code, now that swap configuration
is no longer handled by config(8).
This commit is contained in:
thorpej 1997-06-14 04:25:55 +00:00
parent 70eb4a4223
commit 9fec93804a
3 changed files with 44 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
usr.sbin/config/mkswap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: mkswap.c,v 1.7 1997/06/12 15:03:11 mrg Exp $ */
/* $NetBSD: mkswap.c,v 1.8 1997/06/14 04:25:55 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993
@ -88,7 +88,7 @@ mkoneswap(cf)
register struct nvlist *nv;
register FILE *fp;
char fname[200];
char rootinfo[200];
char specinfo[200];
(void)sprintf(fname, "swap%s.c", cf->cf_name);
if ((fp = fopen(fname, "w")) == NULL) {
@ -106,12 +106,12 @@ mkoneswap(cf)
*/
nv = cf->cf_root;
if (cf->cf_root->nv_str == s_qmark)
strcpy(rootinfo, "NULL");
strcpy(specinfo, "NULL");
else
sprintf(rootinfo, "\"%s\"", cf->cf_root->nv_str);
if (fprintf(fp, "const char *rootspec = %s;\n", rootinfo) < 0)
sprintf(specinfo, "\"%s\"", cf->cf_root->nv_str);
if (fprintf(fp, "const char *rootspec = %s;\n", specinfo) < 0)
goto wrerror;
if (fprintf(fp, "dev_t\trootdev = %s;\t/* %s */\n",
if (fprintf(fp, "dev_t\trootdev = %s;\t/* %s */\n\n",
mkdevstr(nv->nv_int),
nv->nv_str == s_qmark ? "wildcarded" : nv->nv_str) < 0)
goto wrerror;
@ -120,22 +120,28 @@ mkoneswap(cf)
* Emit the dump device.
*/
nv = cf->cf_dump;
if (fprintf(fp, "dev_t\tdumpdev = %s;\t/* %s */\n",
if (cf->cf_dump == NULL)
strcpy(specinfo, "NULL");
else
sprintf(specinfo, "\"%s\"", cf->cf_dump->nv_str);
if (fprintf(fp, "const char *dumpspec = %s;\n", specinfo) < 0)
goto wrerror;
if (fprintf(fp, "dev_t\tdumpdev = %s;\t/* %s */\n\n",
nv ? mkdevstr(nv->nv_int) : "NODEV",
nv ? (nv->nv_str ? nv->nv_str : "none") : "unspecified") < 0)
nv ? nv->nv_str : "unspecified") < 0)
goto wrerror;
/*
* Emit the root file system.
*/
if (cf->cf_fstype == NULL)
strcpy(rootinfo, "NULL");
strcpy(specinfo, "NULL");
else {
sprintf(rootinfo, "%s_mountroot", cf->cf_fstype);
if (fprintf(fp, "extern int %s __P((void));\n", rootinfo) < 0)
sprintf(specinfo, "%s_mountroot", cf->cf_fstype);
if (fprintf(fp, "extern int %s __P((void));\n", specinfo) < 0)
goto wrerror;
}
if (fprintf(fp, "int (*mountroot) __P((void)) = %s;\n", rootinfo) < 0)
if (fprintf(fp, "int (*mountroot) __P((void)) = %s;\n", specinfo) < 0)
goto wrerror;
if (fclose(fp)) {

55
usr.sbin/config/sem.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: sem.c,v 1.16 1997/06/12 15:03:13 mrg Exp $ */
/* $NetBSD: sem.c,v 1.17 1997/06/14 04:25:56 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993
@ -59,8 +59,8 @@
#define NAMESIZE 100 /* local name buffers */
const char *s_ifnet; /* magic attribute */
const char *s_nfs;
const char *s_qmark;
const char *s_none;
static struct hashtab *cfhashtab; /* for config lookup */
static struct hashtab *devitab; /* etc */
@ -79,8 +79,6 @@ static struct nvlist *addtoattr __P((struct nvlist *, struct devbase *));
static int exclude __P((struct nvlist *, const char *, const char *));
static int resolve __P((struct nvlist **, const char *, const char *,
struct nvlist *, int));
static int lresolve __P((struct nvlist **, const char *, const char *,
struct nvlist *, int));
static struct devi *newdevi __P((const char *, int, struct devbase *d));
static struct devi *getdevi __P((const char *));
static const char *concat __P((const char *, int));
@ -116,8 +114,8 @@ initsem()
nextpseudo = &allpseudo;
s_ifnet = intern("ifnet");
s_nfs = intern("nfs");
s_qmark = intern("?");
s_none = intern("none");
}
/* Name of include file just ended (set in scan.l) */
@ -673,21 +671,6 @@ resolve(nvp, name, what, dflt, part)
return (0);
}
static int
lresolve(nvp, name, what, dflt, part)
register struct nvlist **nvp;
const char *name, *what;
struct nvlist *dflt;
int part;
{
int err;
while ((err = resolve(nvp, name, what, dflt, part)) == 0 &&
(*nvp)->nv_next != NULL)
nvp = &(*nvp)->nv_next;
return (err);
}
/*
* Add a completed configuration to the list.
*/
@ -709,23 +692,33 @@ addconf(cf0)
*cf = *cf0;
/*
* Check for wildcarded root device.
* Resolve the root device.
*/
if (cf->cf_root->nv_str == s_qmark) {
/*
* Make sure no dump device specified.
* Note single | here (check all).
*/
if (exclude(cf->cf_dump, name, "dump device"))
goto bad;
} else {
if (cf->cf_root->nv_str != s_qmark) {
nv = cf->cf_root;
if (nv == NULL) {
error("%s: no root device specified", name);
goto bad;
}
if (resolve(&cf->cf_root, name, "root", nv, 'a') |
resolve(&cf->cf_dump, name, "dumps", nv, 'b'))
if (resolve(&cf->cf_root, name, "root", nv, 'a'))
goto bad;
}
/*
* Resolve the dump device.
*/
if (cf->cf_dump == NULL || cf->cf_dump->nv_str == s_qmark) {
/*
* Wildcarded dump device is equivalent to unspecified.
*/
cf->cf_dump = NULL;
} else if (cf->cf_dump->nv_str == s_none) {
/*
* Operator has requested that no dump device should be
* configured; do nothing.
*/
} else {
if (resolve(&cf->cf_dump, name, "dumps", cf->cf_dump, 'b'))
goto bad;
}

4
usr.sbin/config/sem.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: sem.h,v 1.8 1997/05/25 18:42:57 thorpej Exp $ */
/* $NetBSD: sem.h,v 1.9 1997/06/14 04:25:57 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993
@ -68,5 +68,5 @@ const char *wildref __P((const char *name));
int has_attr __P((struct nvlist *, const char *));
extern const char *s_qmark;
extern const char *s_nfs;
extern const char *s_none;
extern const char *s_ifnet;