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CRED: Separate task security context from task_struct

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Separate the task security context from task_struct.  At this point, the
security data is temporarily embedded in the task_struct with two pointers
pointing to it.

Note that the Alpha arch is altered as it refers to (E)UID and (E)GID in
entry.S via asm-offsets.

With comment fixes Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
David Howells 2008-11-14 10:39:16 +11:00 • committed by James Morris
parent 15a2460ed0
commit b6dff3ec5e
63 changed files with 830 additions and 675 deletions
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24
include/linux/init_task.h
View file

@ -113,6 +113,21 @@ extern struct group_info init_groups;
# define CAP_INIT_BSET CAP_INIT_EFF_SET
#endif
extern struct cred init_cred;
#define INIT_CRED(p) \
{ \
.usage = ATOMIC_INIT(3), \
.securebits = SECUREBITS_DEFAULT, \
.cap_inheritable = CAP_INIT_INH_SET, \
.cap_permitted = CAP_FULL_SET, \
.cap_effective = CAP_INIT_EFF_SET, \
.cap_bset = CAP_INIT_BSET, \
.user = INIT_USER, \
.group_info = &init_groups, \
.lock = __SPIN_LOCK_UNLOCKED(p.lock), \
}
/*
* INIT_TASK is used to set up the first task table, touch at
* your own risk!. Base=0, limit=0x1fffff (=2MB)
@ -147,13 +162,8 @@ extern struct group_info init_groups;
.children = LIST_HEAD_INIT(tsk.children), \
.sibling = LIST_HEAD_INIT(tsk.sibling), \
.group_leader = &tsk, \
.group_info = &init_groups, \
.cap_effective = CAP_INIT_EFF_SET, \
.cap_inheritable = CAP_INIT_INH_SET, \
.cap_permitted = CAP_FULL_SET, \
.cap_bset = CAP_INIT_BSET, \
.securebits = SECUREBITS_DEFAULT, \
.user = INIT_USER, \
.__temp_cred = INIT_CRED(tsk.__temp_cred), \
.cred = &tsk.__temp_cred, \
.comm = "swapper", \
.thread = INIT_THREAD, \
.fs = &init_fs, \