From: Mike Waychison <mikew@google.com>
To: "Andrew G. Morgan" <agm@google.com>,
Maximilian Attems <max@stro.at>,
Eric Northup <digitaleric@google.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
"H. Peter Anvin" <hpa@zytor.com>
Cc: Eric Paris <eparis@parisplace.org>,
klibc@zytor.com, linux-kernel@vger.kernel.org
Subject: [PATCH v1 1/2] syscalls: Add capset and capget
Date: Tue, 19 Jul 2011 13:38:48 -0700 [thread overview]
Message-ID: <20110719203848.646.62196.stgit@mike2.sea.corp.google.com> (raw)
In-Reply-To: <20110719203843.646.73383.stgit@mike2.sea.corp.google.com>
Add the capset and capget system calls to klibc so that userland can
invoke them.
Signed-off-by: Mike Waychison <mikew@google.com>
---
usr/include/sys/capability.h | 10 ++++++++++
usr/klibc/SYSCALLS.def | 6 ++++++
usr/klibc/syscalls/syscommon.h | 1 +
3 files changed, 17 insertions(+), 0 deletions(-)
create mode 100644 usr/include/sys/capability.h
diff --git a/usr/include/sys/capability.h b/usr/include/sys/capability.h
new file mode 100644
index 0000000..84ad419
--- /dev/null
+++ b/usr/include/sys/capability.h
@@ -0,0 +1,10 @@
+#ifndef _SYS_CAPABILITY_H
+#define _SYS_CAPABILITY_H
+
+#include <klibc/extern.h>
+#include <linux/capability.h>
+
+__extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
+__extern int capset(cap_user_header_t hdrp, const cap_user_data_t datap);
+
+#endif /* _SYS_CAPABILITY_H */
diff --git a/usr/klibc/SYSCALLS.def b/usr/klibc/SYSCALLS.def
index d3279c7..ee3ffa9 100644
--- a/usr/klibc/SYSCALLS.def
+++ b/usr/klibc/SYSCALLS.def
@@ -77,6 +77,12 @@ int setfsgid32,setfsgid::setfsgid(gid_t);
int setresuid32,setresuid::setresuid(int, uid_t, uid_t, uid_t);
/*
+ * POSIX Capabilities
+ */
+int capget(cap_user_header_t, cap_user_data_t);
+int capset(cap_user_header_t, cap_user_data_t);
+
+/*
* Filesystem-related system calls
*/
int mount(const char *, const char *, const char *, unsigned long, const void *);
diff --git a/usr/klibc/syscalls/syscommon.h b/usr/klibc/syscalls/syscommon.h
index 0acae12..78f8858 100644
--- a/usr/klibc/syscalls/syscommon.h
+++ b/usr/klibc/syscalls/syscommon.h
@@ -12,6 +12,7 @@
#include <poll.h>
#include <sched.h>
+#include <sys/capability.h>
#include <sys/dirent.h>
#include <sys/klog.h>
#include <sys/mman.h>
next prev parent reply other threads:[~2011-07-19 20:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-19 20:38 [PATCH v1 0/2] Support dropping of capabilities from early userspace Mike Waychison
2011-07-19 20:38 ` Mike Waychison [this message]
2011-07-29 20:41 ` [PATCH v1 1/2] syscalls: Add capset and capget Maximilian Attems
2011-07-29 23:06 ` Maximilian Attems
2011-07-19 20:38 ` [PATCH v1 2/2] run-init: Add drop_capabilities support Mike Waychison
2011-07-29 20:45 ` Maximilian Attems
2011-07-29 20:46 ` Mike Waychison
2011-08-02 21:09 ` Maximilian Attems
2011-08-02 21:42 ` Mike Waychison
2011-08-02 22:50 ` Andrew G. Morgan
2011-08-02 22:56 ` Mike Waychison
2011-08-02 23:37 ` Mike Waychison
2011-08-03 0:48 ` H. Peter Anvin
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