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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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16
fs/proc/base.c
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@@ -1428,8 +1428,8 @@ static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_st
inode->i_uid = 0;
inode->i_gid = 0;
if (task_dumpable(task)) {
inode->i_uid = task->euid;
inode->i_gid = task->egid;
inode->i_uid = task->cred->euid;
inode->i_gid = task->cred->egid;
}
security_task_to_inode(task, inode);
@@ -1454,8 +1454,8 @@ static int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat
if (task) {
if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
task_dumpable(task)) {
stat->uid = task->euid;
stat->gid = task->egid;
stat->uid = task->cred->euid;
stat->gid = task->cred->egid;
}
}
rcu_read_unlock();
@@ -1486,8 +1486,8 @@ static int pid_revalidate(struct dentry *dentry, struct nameidata *nd)
if (task) {
if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
task_dumpable(task)) {
inode->i_uid = task->euid;
inode->i_gid = task->egid;
inode->i_uid = task->cred->euid;
inode->i_gid = task->cred->egid;
} else {
inode->i_uid = 0;
inode->i_gid = 0;
@@ -1658,8 +1658,8 @@ static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd)
rcu_read_unlock();
put_files_struct(files);
if (task_dumpable(task)) {
inode->i_uid = task->euid;
inode->i_gid = task->egid;
inode->i_uid = task->cred->euid;
inode->i_gid = task->cred->egid;
} else {
inode->i_uid = 0;
inode->i_gid = 0;