d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Don't allow i/o operations for non-root users.

Browse Source
This commit is contained in:
bde 1995-10-14 07:09:58 +00:00
parent dd2590866a
commit 5cbfb32a2d
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sys/i386/isa/spigot.c
View File

@ -207,6 +207,7 @@ struct spigot_softc *ss = (struct spigot_softc *)&spigot_softc[UNIT(dev)];
int
spigot_ioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
{
int error;
struct spigot_softc *ss = (struct spigot_softc *)&spigot_softc[UNIT(dev)];
struct trapframe *fp;
struct spigot_info *info;
@ -218,6 +219,9 @@ struct spigot_info *info;
ss->signal_num = *((int *)data);
break;
case SPIGOT_IOPL_ON: /* allow access to the IO PAGE */
error = suser(p->p_ucred, &p->p_acflag);
if (error != 0)
return error;
fp=(struct trapframe *)p->p_md.md_regs;
fp->tf_eflags |= PSL_IOPL;
break;