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authorDavid Howells <dhowells@redhat.com>2008-11-14 02:39:16 +0300
committerJames Morris <jmorris@namei.org>2008-11-14 02:39:16 +0300
commitb6dff3ec5e116e3af6f537d4caedcad6b9e5082a (patch)
tree9e76f972eb7ce9b84e0146c8e4126a3f86acb428 /net/core/scm.c
parent15a2460ed0af7538ca8e6c610fe607a2cd9da142 (diff)
downloadlinux-b6dff3ec5e116e3af6f537d4caedcad6b9e5082a.tar.xz
CRED: Separate task security context from task_struct
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>
Diffstat (limited to 'net/core/scm.c')
-rw-r--r--net/core/scm.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/net/core/scm.c b/net/core/scm.c
index 4681d8f9b45b..c28ca32a7d93 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -44,11 +44,13 @@
static __inline__ int scm_check_creds(struct ucred *creds)
{
+ struct cred *cred = current->cred;
+
if ((creds->pid == task_tgid_vnr(current) || capable(CAP_SYS_ADMIN)) &&
- ((creds->uid == current_uid() || creds->uid == current_euid() ||
- creds->uid == current_suid()) || capable(CAP_SETUID)) &&
- ((creds->gid == current_gid() || creds->gid == current_egid() ||
- creds->gid == current_sgid()) || capable(CAP_SETGID))) {
+ ((creds->uid == cred->uid || creds->uid == cred->euid ||
+ creds->uid == cred->suid) || capable(CAP_SETUID)) &&
+ ((creds->gid == cred->gid || creds->gid == cred->egid ||
+ creds->gid == cred->sgid) || capable(CAP_SETGID))) {
return 0;
}
return -EPERM;