Change the suser() API to take advantage of td_ucred as well as do a

general cleanup of the API.  The entire API now consists of two functions
similar to the pre-KSE API.  The suser() function takes a thread pointer
as its only argument.  The td_ucred member of this thread must be valid
so the only valid thread pointers are curthread and a few kernel threads
such as thread0.  The suser_cred() function takes a pointer to a struct
ucred as its first argument and an integer flag as its second argument.
The flag is currently only used for the PRISON_ROOT flag.

Discussed on:	smp@

2 files changed, 3 insertions, 3 deletions

diff --git a/sys/dev/syscons/syscons.c b/sys/dev/syscons/syscons.c
index 29d0332..f572f8a 100644
--- a/sys/dev/syscons/syscons.c
+++ b/sys/dev/syscons/syscons.c
@@ -479,7 +479,7 @@ scopen(dev_t dev, int flag, int mode, struct thread *td)
 	(*linesw[tp->t_line].l_modem)(tp, 1);
     }
     else
-	if (tp->t_state & TS_XCLUDE && suser_td(td))
+	if (tp->t_state & TS_XCLUDE && suser(td))
 	    return(EBUSY);
 
     error = (*linesw[tp->t_line].l_open)(dev, tp);
@@ -976,7 +976,7 @@ scioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td)
 	return 0;
 
     case KDENABIO:      	/* allow io operations */
-	error = suser_td(td);
+	error = suser(td);
 	if (error != 0)
 	    return error;
 	error = securelevel_gt(td->td_ucred, 0);
diff --git a/sys/dev/syscons/sysmouse.c b/sys/dev/syscons/sysmouse.c
index 80eac8e..310052a 100644
--- a/sys/dev/syscons/sysmouse.c
+++ b/sys/dev/syscons/sysmouse.c
@@ -99,7 +99,7 @@ smopen(dev_t dev, int flag, int mode, struct thread *td)
 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
 		smparam(tp, &tp->t_termios);
 		(*linesw[tp->t_line].l_modem)(tp, 1);
-	} else if (tp->t_state & TS_XCLUDE && suser_td(td)) {
+	} else if (tp->t_state & TS_XCLUDE && suser(td)) {
 		return EBUSY;
 	}