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The changes to support the new flags in the vn driver.

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This commit is contained in:
Poul-Henning Kamp 1995-03-11 09:33:25 +00:00
parent 5511b2e4f3
commit 5dad287ead
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=6999
1 changed files with 81 additions and 6 deletions
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87
usr.sbin/vnconfig/vnconfig.c
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@ -66,11 +66,16 @@ struct vndisk {
#define VN_MOUNTRO 0x20
#define VN_MOUNTRW 0x40
#define VN_IGNORE 0x80
#define VN_SET 0x100
#define VN_RESET 0x200
int nvndisks;
int all = 0;
int verbose = 0;
int global = 0;
u_long setopt = 0;
u_long resetopt = 0;
char *configfile;
char *pname;
@ -86,7 +91,7 @@ main(argc, argv)
pname = argv[0];
configfile = _PATH_VNTAB;
while ((i = getopt(argc, argv, "acdef:uv")) != EOF)
while ((i = getopt(argc, argv, "acdef:gr:s:uv")) != EOF)
switch (i) {
/* all -- use config file */
@ -117,6 +122,31 @@ main(argc, argv)
configfile = optarg;
break;
/* fiddle global options */
case 'g':
global = 1 - global;
break;
/* reset options */
case 'r':
if (what_opt(optarg,&resetopt)) {
fprintf(stderr,"Invalid options '%s'\n",
optarg);
usage();
}
flags |= VN_RESET;
break;
/* set options */
case 's':
if (what_opt(optarg,&setopt)) {
fprintf(stderr,"Invalid options '%s'\n",
optarg);
usage();
}
flags |= VN_SET;
break;
/* unconfigure */
case 'u':
flags |= (VN_DISABLE|VN_UNCONFIG);
@ -153,6 +183,20 @@ main(argc, argv)
exit(rv);
}
int
what_opt(str,p)
char *str;
u_long *p;
{
if (!strcmp(str,"labels")) { *p |= VN_LABELS; return 0; }
if (!strcmp(str,"follow")) { *p |= VN_FOLLOW; return 0; }
if (!strcmp(str,"debug")) { *p |= VN_DEBUG; return 0; }
if (!strcmp(str,"io")) { *p |= VN_IO; return 0; }
if (!strcmp(str,"all")) { *p |= ~0; return 0; }
if (!strcmp(str,"none")) { *p |= 0; return 0; }
return 1;
}
config(vnp)
struct vndisk *vnp;
{
@ -163,6 +207,7 @@ config(vnp)
char *rdev;
FILE *f;
extern int errno;
u_long l;
dev = vnp->dev;
file = vnp->file;
@ -199,14 +244,14 @@ config(vnp)
* Clear (un-configure) the device
*/
if (flags & VN_UNCONFIG) {
rv = ioctl(fileno(f), VNIOCCLR, &vnio);
rv = ioctl(fileno(f), VNIOCDETACH, &vnio);
if (rv) {
if (errno == ENODEV) {
if (verbose)
printf("%s: not configured\n", dev);
rv = 0;
} else
perror("VNIOCCLR");
perror("VNIOCDETACH");
} else if (verbose)
printf("%s: cleared\n", dev);
}
@ -214,14 +259,43 @@ config(vnp)
* Configure the device
*/
if (flags & VN_CONFIG) {
rv = ioctl(fileno(f), VNIOCSET, &vnio);
rv = ioctl(fileno(f), VNIOCATTACH, &vnio);
if (rv) {
perror("VNIOCSET");
perror("VNIOCATTACH");
flags &= ~VN_ENABLE;
} else if (verbose)
printf("%s: %d bytes on %s\n",
dev, vnio.vn_size, file);
}
/*
* Set an option
*/
if (flags & VN_SET) {
l = setopt;
if (global)
rv = ioctl(fileno(f), VNIOCGSET, &l);
else
rv = ioctl(fileno(f), VNIOCUSET, &l);
if (rv) {
perror("VNIO[GU]SET");
} else if (verbose)
printf("%s: flags now=%08x\n",dev,l);
}
/*
* Reset an option
*/
if (flags & VN_RESET) {
l = resetopt;
if (global)
rv = ioctl(fileno(f), VNIOCGCLEAR, &l);
else
rv = ioctl(fileno(f), VNIOCUCLEAR, &l);
if (rv) {
perror("VNIO[GU]CLEAR");
} else if (verbose)
printf("%s: flags now=%08x\n",dev,l);
}
/*
* Enable special functions on the device
*/
@ -362,7 +436,8 @@ rawdevice(dev)
usage()
{
fprintf(stderr, "usage: %s [-acdefuv] [special-device file]\n",
fprintf(stderr, "usage: %s [-acdefguv] [-s option] [-r option] [special-device file]\n",
pname);
fprintf(stderr, "\toptions: labels, follow, debug, io, all, none\n");
exit(1);
}