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| author | jh <jh@FreeBSD.org> | 2010-10-07 18:00:55 +0000 |
|---|---|---|
| committer | jh <jh@FreeBSD.org> | 2010-10-07 18:00:55 +0000 |
| commit | d93ad5245d40e2887d36fe6e876a870d16f1dc0d (patch) | |
| tree | f6bd7f0b6ecbf4f251efb4a2bf7d3fa7096463ef /sys/sys/conf.h | |
| parent | 81f0eaae12838513377191ff7dd13700a9b32dad (diff) | |
| download | FreeBSD-src-d93ad5245d40e2887d36fe6e876a870d16f1dc0d.zip FreeBSD-src-d93ad5245d40e2887d36fe6e876a870d16f1dc0d.tar.gz | |
Check the device name validity on device registration.
A new function prep_devname() sanitizes a device name by removing
leading and redundant sequential slashes. The function returns an error
for names which already exist or are considered invalid.
A new flag MAKEDEV_CHECKNAME for make_dev_p(9) and make_dev_credf(9)
indicates that the caller is prepared to handle an error related to the
device name. An invalid name triggers a panic if the flag is not
specified.
Document the MAKEDEV_CHECKNAME flag in the make_dev(9) manual page.
Idea from: kib
Reviewed by: kib
Diffstat (limited to 'sys/sys/conf.h')
| -rw-r--r-- | sys/sys/conf.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/sys/sys/conf.h b/sys/sys/conf.h index 6c60601..5f1ef18 100644 --- a/sys/sys/conf.h +++ b/sys/sys/conf.h @@ -263,11 +263,12 @@ struct cdev *make_dev(struct cdevsw *_devsw, int _unit, uid_t _uid, gid_t _gid, struct cdev *make_dev_cred(struct cdevsw *_devsw, int _unit, struct ucred *_cr, uid_t _uid, gid_t _gid, int _perms, const char *_fmt, ...) __printflike(7, 8); -#define MAKEDEV_REF 0x01 -#define MAKEDEV_WHTOUT 0x02 -#define MAKEDEV_NOWAIT 0x04 -#define MAKEDEV_WAITOK 0x08 -#define MAKEDEV_ETERNAL 0x10 +#define MAKEDEV_REF 0x01 +#define MAKEDEV_WHTOUT 0x02 +#define MAKEDEV_NOWAIT 0x04 +#define MAKEDEV_WAITOK 0x08 +#define MAKEDEV_ETERNAL 0x10 +#define MAKEDEV_CHECKNAME 0x20 struct cdev *make_dev_credf(int _flags, struct cdevsw *_devsw, int _unit, struct ucred *_cr, uid_t _uid, gid_t _gid, int _mode, |
