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authorH. Peter Anvin <hpa@zytor.com>2008-08-27 19:17:07 -0700
committerH. Peter Anvin <hpa@zytor.com>2008-08-27 19:17:07 -0700
commitb30a72a7edfc64c8929104d5c2178aca489aa559 (patch)
tree2b26c155c318d08d946bd2d70cf815dcdb29a243 /security/commoncap.c
parentf1c5d30e1d79bbfb60eaf189db862d3cb2bcac92 (diff)
parentc1b362e3b4d331a63915b268a33207311a439d60 (diff)
Merge branch 'x86/urgent' into x86/cpu
Conflicts: arch/x86/kernel/cpu/cyrix.c
Diffstat (limited to 'security/commoncap.c')
-rw-r--r--security/commoncap.c24
1 files changed, 17 insertions, 7 deletions
diff --git a/security/commoncap.c b/security/commoncap.c
index 4afbece37a0..e4c4b3fc0c0 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -63,14 +63,24 @@ int cap_settime(struct timespec *ts, struct timezone *tz)
return 0;
}
-int cap_ptrace (struct task_struct *parent, struct task_struct *child,
- unsigned int mode)
+int cap_ptrace_may_access(struct task_struct *child, unsigned int mode)
{
/* Derived from arch/i386/kernel/ptrace.c:sys_ptrace. */
- if (!cap_issubset(child->cap_permitted, parent->cap_permitted) &&
- !__capable(parent, CAP_SYS_PTRACE))
- return -EPERM;
- return 0;
+ if (cap_issubset(child->cap_permitted, current->cap_permitted))
+ return 0;
+ if (capable(CAP_SYS_PTRACE))
+ return 0;
+ return -EPERM;
+}
+
+int cap_ptrace_traceme(struct task_struct *parent)
+{
+ /* Derived from arch/i386/kernel/ptrace.c:sys_ptrace. */
+ if (cap_issubset(current->cap_permitted, parent->cap_permitted))
+ return 0;
+ if (has_capability(parent, CAP_SYS_PTRACE))
+ return 0;
+ return -EPERM;
}
int cap_capget (struct task_struct *target, kernel_cap_t *effective,
@@ -534,7 +544,7 @@ int cap_task_post_setuid (uid_t old_ruid, uid_t old_euid, uid_t old_suid,
static inline int cap_safe_nice(struct task_struct *p)
{
if (!cap_issubset(p->cap_permitted, current->cap_permitted) &&
- !__capable(current, CAP_SYS_NICE))
+ !capable(CAP_SYS_NICE))
return -EPERM;
return 0;
}