From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/include/uapi/linux/securebits.h | 51 ++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 kernel/include/uapi/linux/securebits.h (limited to 'kernel/include/uapi/linux/securebits.h') diff --git a/kernel/include/uapi/linux/securebits.h b/kernel/include/uapi/linux/securebits.h new file mode 100644 index 000000000..985aac9e6 --- /dev/null +++ b/kernel/include/uapi/linux/securebits.h @@ -0,0 +1,51 @@ +#ifndef _UAPI_LINUX_SECUREBITS_H +#define _UAPI_LINUX_SECUREBITS_H + +/* Each securesetting is implemented using two bits. One bit specifies + whether the setting is on or off. The other bit specify whether the + setting is locked or not. A setting which is locked cannot be + changed from user-level. */ +#define issecure_mask(X) (1 << (X)) + +#define SECUREBITS_DEFAULT 0x00000000 + +/* When set UID 0 has no special privileges. When unset, we support + inheritance of root-permissions and suid-root executable under + compatibility mode. We raise the effective and inheritable bitmasks + *of the executable file* if the effective uid of the new process is + 0. If the real uid is 0, we raise the effective (legacy) bit of the + executable file. */ +#define SECURE_NOROOT 0 +#define SECURE_NOROOT_LOCKED 1 /* make bit-0 immutable */ + +#define SECBIT_NOROOT (issecure_mask(SECURE_NOROOT)) +#define SECBIT_NOROOT_LOCKED (issecure_mask(SECURE_NOROOT_LOCKED)) + +/* When set, setuid to/from uid 0 does not trigger capability-"fixup". + When unset, to provide compatiblility with old programs relying on + set*uid to gain/lose privilege, transitions to/from uid 0 cause + capabilities to be gained/lost. */ +#define SECURE_NO_SETUID_FIXUP 2 +#define SECURE_NO_SETUID_FIXUP_LOCKED 3 /* make bit-2 immutable */ + +#define SECBIT_NO_SETUID_FIXUP (issecure_mask(SECURE_NO_SETUID_FIXUP)) +#define SECBIT_NO_SETUID_FIXUP_LOCKED \ + (issecure_mask(SECURE_NO_SETUID_FIXUP_LOCKED)) + +/* When set, a process can retain its capabilities even after + transitioning to a non-root user (the set-uid fixup suppressed by + bit 2). Bit-4 is cleared when a process calls exec(); setting both + bit 4 and 5 will create a barrier through exec that no exec()'d + child can use this feature again. */ +#define SECURE_KEEP_CAPS 4 +#define SECURE_KEEP_CAPS_LOCKED 5 /* make bit-4 immutable */ + +#define SECBIT_KEEP_CAPS (issecure_mask(SECURE_KEEP_CAPS)) +#define SECBIT_KEEP_CAPS_LOCKED (issecure_mask(SECURE_KEEP_CAPS_LOCKED)) + +#define SECURE_ALL_BITS (issecure_mask(SECURE_NOROOT) | \ + issecure_mask(SECURE_NO_SETUID_FIXUP) | \ + issecure_mask(SECURE_KEEP_CAPS)) +#define SECURE_ALL_LOCKS (SECURE_ALL_BITS << 1) + +#endif /* _UAPI_LINUX_SECUREBITS_H */ -- cgit 1.2.3-korg