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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
Download Patch File Download Diff File Expand all files Collapse all files

28
kernel/uid16.c
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@@ -86,9 +86,9 @@ asmlinkage long sys_getresuid16(old_uid_t __user *ruid, old_uid_t __user *euid,
{
int retval;
if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
!(retval = put_user(high2lowuid(current->euid), euid)))
retval = put_user(high2lowuid(current->suid), suid);
if (!(retval = put_user(high2lowuid(current->cred->uid), ruid)) &&
!(retval = put_user(high2lowuid(current->cred->euid), euid)))
retval = put_user(high2lowuid(current->cred->suid), suid);
return retval;
}
@@ -106,9 +106,9 @@ asmlinkage long sys_getresgid16(old_gid_t __user *rgid, old_gid_t __user *egid,
{
int retval;
if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
!(retval = put_user(high2lowgid(current->egid), egid)))
retval = put_user(high2lowgid(current->sgid), sgid);
if (!(retval = put_user(high2lowgid(current->cred->gid), rgid)) &&
!(retval = put_user(high2lowgid(current->cred->egid), egid)))
retval = put_user(high2lowgid(current->cred->sgid), sgid);
return retval;
}
@@ -166,20 +166,20 @@ asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist)
if (gidsetsize < 0)
return -EINVAL;
get_group_info(current->group_info);
i = current->group_info->ngroups;
get_group_info(current->cred->group_info);
i = current->cred->group_info->ngroups;
if (gidsetsize) {
if (i > gidsetsize) {
i = -EINVAL;
goto out;
}
if (groups16_to_user(grouplist, current->group_info)) {
if (groups16_to_user(grouplist, current->cred->group_info)) {
i = -EFAULT;
goto out;
}
}
out:
put_group_info(current->group_info);
put_group_info(current->cred->group_info);
return i;
}
@@ -210,20 +210,20 @@ asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist)
asmlinkage long sys_getuid16(void)
{
return high2lowuid(current->uid);
return high2lowuid(current->cred->uid);
}
asmlinkage long sys_geteuid16(void)
{
return high2lowuid(current->euid);
return high2lowuid(current->cred->euid);
}
asmlinkage long sys_getgid16(void)
{
return high2lowgid(current->gid);
return high2lowgid(current->cred->gid);
}
asmlinkage long sys_getegid16(void)
{
return high2lowgid(current->egid);
return high2lowgid(current->cred->egid);
}