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@

1 files changed, 2 insertions, 2 deletions

diff --git a/sys/kern/sysv_ipc.c b/sys/kern/sysv_ipc.c
index 42a1465..fc5fd8f 100644
--- a/sys/kern/sysv_ipc.c
+++ b/sys/kern/sysv_ipc.c
@@ -81,7 +81,7 @@ ipcperm(td, perm, mode)
 	/* Check for user match. */
 	if (cred->cr_uid != perm->cuid && cred->cr_uid != perm->uid) {
 		if (mode & IPC_M)
-			return (suser_td(td) == 0 ? 0 : EPERM);
+			return (suser(td) == 0 ? 0 : EPERM);
 		/* Check for group match. */
 		mode >>= 3;
 		if (!groupmember(perm->gid, cred) &&
@@ -93,5 +93,5 @@ ipcperm(td, perm, mode)
 	if (mode & IPC_M)
 		return (0);
 	return ((mode & perm->mode) == mode ||
-	    suser_td(td) == 0 ? 0 : EACCES);
+	    suser(td) == 0 ? 0 : EACCES);
 }