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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-25 23:10:14 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-25 23:10:14 +0400
commitd4a63a83933bcd1ef4f3ff6e8637e187dea25632 (patch)
treeb840dc8bfc733f8c2efe1c25c2d87b97daceb34c
parent7ae0e06b909e31bf9a396a2326ef09b768d9b4c4 (diff)
parentf58437f1f9161847c636e4fed5569ed5b908af36 (diff)
downloadlinux-d4a63a83933bcd1ef4f3ff6e8637e187dea25632.tar.xz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull user namespaces work from Eric Biederman: "The work to convert the kernel to use kuid_t and kgid_t has been finished since 3.12 so it is time to remove the scaffolding that allowed the work to progress incrementally. The first patch on this branch just removes the scaffolding, ensuring we will always get compile errors if people accidentally try the userspace and the kernel uid and gid types. The second patch an overlooked and unused chunk of mips code that that fails to build after the first patch. The code hasn't been in linux-next for long (as I was out of it and could not sheppared the cold properly) but the patch has been around for a long time just waiting for the day when I had finished the uid/gid conversions. Putting the code in linux-next did find the compile failure on mips so I took the time to get that fix reviewed and included. Beyond that I am not too worried about errors because all these two patches do is delete a modest amount of code" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: MIPS: VPE: Remove vpe_getuid and vpe_getgid userns: userns: Remove UIDGID_STRICT_TYPE_CHECKS
-rw-r--r--arch/mips/include/asm/vpe.h2
-rw-r--r--arch/mips/kernel/vpe.c28
-rw-r--r--include/linux/posix_acl.h3
-rw-r--r--include/linux/projid.h15
-rw-r--r--include/linux/uidgid.h22
-rw-r--r--init/Kconfig11
6 files changed, 0 insertions, 81 deletions
diff --git a/arch/mips/include/asm/vpe.h b/arch/mips/include/asm/vpe.h
index c6e1b961537d..0880fe8809b1 100644
--- a/arch/mips/include/asm/vpe.h
+++ b/arch/mips/include/asm/vpe.h
@@ -30,8 +30,6 @@ struct vpe_notifications {
extern int vpe_notify(int index, struct vpe_notifications *notify);
extern void *vpe_get_shared(int index);
-extern int vpe_getuid(int index);
-extern int vpe_getgid(int index);
extern char *vpe_getcwd(int index);
#endif /* _ASM_VPE_H */
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 59b2b3cd7885..2d5c142bad67 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -105,7 +105,6 @@ struct vpe {
unsigned long len;
char *pbuffer;
unsigned long plen;
- unsigned int uid, gid;
char cwd[VPE_PATH_MAX];
unsigned long __start;
@@ -1083,9 +1082,6 @@ static int vpe_open(struct inode *inode, struct file *filp)
v->load_addr = NULL;
v->len = 0;
- v->uid = filp->f_cred->fsuid;
- v->gid = filp->f_cred->fsgid;
-
v->cwd[0] = 0;
ret = getcwd(v->cwd, VPE_PATH_MAX);
if (ret < 0)
@@ -1269,30 +1265,6 @@ void *vpe_get_shared(int index)
EXPORT_SYMBOL(vpe_get_shared);
-int vpe_getuid(int index)
-{
- struct vpe *v;
-
- if ((v = get_vpe(index)) == NULL)
- return -1;
-
- return v->uid;
-}
-
-EXPORT_SYMBOL(vpe_getuid);
-
-int vpe_getgid(int index)
-{
- struct vpe *v;
-
- if ((v = get_vpe(index)) == NULL)
- return -1;
-
- return v->gid;
-}
-
-EXPORT_SYMBOL(vpe_getgid);
-
int vpe_notify(int index, struct vpe_notifications *notify)
{
struct vpe *v;
diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index fb616942e4c7..833099bf8090 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -39,9 +39,6 @@ struct posix_acl_entry {
union {
kuid_t e_uid;
kgid_t e_gid;
-#ifndef CONFIG_UIDGID_STRICT_TYPE_CHECKS
- unsigned int e_id;
-#endif
};
};
diff --git a/include/linux/projid.h b/include/linux/projid.h
index 36517b95be5c..8c1f2c55226d 100644
--- a/include/linux/projid.h
+++ b/include/linux/projid.h
@@ -18,8 +18,6 @@ extern struct user_namespace init_user_ns;
typedef __kernel_uid32_t projid_t;
-#ifdef CONFIG_UIDGID_STRICT_TYPE_CHECKS
-
typedef struct {
projid_t val;
} kprojid_t;
@@ -31,19 +29,6 @@ static inline projid_t __kprojid_val(kprojid_t projid)
#define KPROJIDT_INIT(value) (kprojid_t){ value }
-#else
-
-typedef projid_t kprojid_t;
-
-static inline projid_t __kprojid_val(kprojid_t projid)
-{
- return projid;
-}
-
-#define KPROJIDT_INIT(value) ((kprojid_t) value )
-
-#endif
-
#define INVALID_PROJID KPROJIDT_INIT(-1)
#define OVERFLOW_PROJID 65534
diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
index 8e522cbcef29..2d1f9b627f91 100644
--- a/include/linux/uidgid.h
+++ b/include/linux/uidgid.h
@@ -17,8 +17,6 @@
struct user_namespace;
extern struct user_namespace init_user_ns;
-#ifdef CONFIG_UIDGID_STRICT_TYPE_CHECKS
-
typedef struct {
uid_t val;
} kuid_t;
@@ -41,26 +39,6 @@ static inline gid_t __kgid_val(kgid_t gid)
return gid.val;
}
-#else
-
-typedef uid_t kuid_t;
-typedef gid_t kgid_t;
-
-static inline uid_t __kuid_val(kuid_t uid)
-{
- return uid;
-}
-
-static inline gid_t __kgid_val(kgid_t gid)
-{
- return gid;
-}
-
-#define KUIDT_INIT(value) ((kuid_t) value )
-#define KGIDT_INIT(value) ((kgid_t) value )
-
-#endif
-
#define GLOBAL_ROOT_UID KUIDT_INIT(0)
#define GLOBAL_ROOT_GID KGIDT_INIT(0)
diff --git a/init/Kconfig b/init/Kconfig
index 8d402e33b7fc..34a0a3bf2390 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1116,8 +1116,6 @@ config IPC_NS
config USER_NS
bool "User namespace"
- select UIDGID_STRICT_TYPE_CHECKS
-
default n
help
This allows containers, i.e. vservers, to use user namespaces
@@ -1149,15 +1147,6 @@ config NET_NS
endif # NAMESPACES
-config UIDGID_STRICT_TYPE_CHECKS
- bool "Require conversions between uid/gids and their internal representation"
- default n
- help
- While the nececessary conversions are being added to all subsystems this option allows
- the code to continue to build for unconverted subsystems.
-
- Say Y here if you want the strict type checking enabled
-
config SCHED_AUTOGROUP
bool "Automatic process group scheduling"
select CGROUPS