diff options
Diffstat (limited to 'sys/miscfs/procfs/procfs_mem.c')
| -rw-r--r-- | sys/miscfs/procfs/procfs_mem.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/sys/miscfs/procfs/procfs_mem.c b/sys/miscfs/procfs/procfs_mem.c index 00755c7f46c..5d069511fe2 100644 --- a/sys/miscfs/procfs/procfs_mem.c +++ b/sys/miscfs/procfs/procfs_mem.c @@ -1,4 +1,4 @@ -/* $OpenBSD: procfs_mem.c,v 1.5 1997/08/16 02:00:49 millert Exp $ */ +/* $OpenBSD: procfs_mem.c,v 1.6 1997/08/29 04:24:38 millert Exp $ */ /* $NetBSD: procfs_mem.c,v 1.8 1996/02/09 22:40:50 christos Exp $ */ /* @@ -208,8 +208,8 @@ procfs_rwmem(p, uio) */ int procfs_domem(curp, p, pfs, uio) - struct proc *curp; - struct proc *p; + struct proc *curp; /* tracer */ + struct proc *p; /* traced */ struct pfsnode *pfs; struct uio *uio; { @@ -244,20 +244,25 @@ procfs_findtextvp(p) } /* + * Ensure that a process has permission to perform I/O on another. + * Arguments: + * p The process wishing to do the I/O (the tracer). + * t The process who's memory/registers will be read/written. + * * You cannot attach to a process's mem/regs if: * - * (1) it's not owned by you, or the last exec + * (1) It's not owned by you, or the last exec * gave us setuid/setgid privs (unless * you're root), or... * - * (2) ...it's init, which controls the security level + * (2) It's init, which controls the security level * of the entire system, and the system was not * compiled with permanently insecure mode turned * on. */ int -procfs_checkioperm(t, p) - struct proc *t, *p; +procfs_checkioperm(p, t) + struct proc *p, *t; { int error; |