CRED: Make execve() take advantage of copy-on-write credentials

[safe/jmp/linux-2.6] / security / security.c

diff --git a/security/security.c b/security/security.c
index 346f21e..dc5babb 100644 (file)
--- a/security/security.c
+++ b/security/security.c
@@ -145,20 +145,13 @@ int security_capget(struct task_struct *target,
        return security_ops->capget(target, effective, inheritable, permitted);
 }
 
-int security_capset_check(struct task_struct *target,
-                          kernel_cap_t *effective,
-                          kernel_cap_t *inheritable,
-                          kernel_cap_t *permitted)
+int security_capset(struct cred *new, const struct cred *old,
+                   const kernel_cap_t *effective,
+                   const kernel_cap_t *inheritable,
+                   const kernel_cap_t *permitted)
 {
-       return security_ops->capset_check(target, effective, inheritable, permitted);
-}
-
-void security_capset_set(struct task_struct *target,
-                         kernel_cap_t *effective,
-                         kernel_cap_t *inheritable,
-                         kernel_cap_t *permitted)
-{
-       security_ops->capset_set(target, effective, inheritable, permitted);
+       return security_ops->capset(new, old,
+                                   effective, inheritable, permitted);
 }
 
 int security_capable(struct task_struct *tsk, int cap)
@@ -220,34 +213,24 @@ int security_vm_enough_memory_kern(long pages)
        return security_ops->vm_enough_memory(current->mm, pages);
 }
 
-int security_bprm_alloc(struct linux_binprm *bprm)
-{
-       return security_ops->bprm_alloc_security(bprm);
-}
-
-void security_bprm_free(struct linux_binprm *bprm)
+int security_bprm_set_creds(struct linux_binprm *bprm)
 {
-       security_ops->bprm_free_security(bprm);
+       return security_ops->bprm_set_creds(bprm);
 }
 
-void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
-{
-       security_ops->bprm_apply_creds(bprm, unsafe);
-}
-
-void security_bprm_post_apply_creds(struct linux_binprm *bprm)
+int security_bprm_check(struct linux_binprm *bprm)
 {
-       security_ops->bprm_post_apply_creds(bprm);
+       return security_ops->bprm_check_security(bprm);
 }
 
-int security_bprm_set(struct linux_binprm *bprm)
+void security_bprm_committing_creds(struct linux_binprm *bprm)
 {
-       return security_ops->bprm_set_security(bprm);
+       return security_ops->bprm_committing_creds(bprm);
 }
 
-int security_bprm_check(struct linux_binprm *bprm)
+void security_bprm_committed_creds(struct linux_binprm *bprm)
 {
-       return security_ops->bprm_check_security(bprm);
+       return security_ops->bprm_committed_creds(bprm);
 }
 
 int security_bprm_secureexec(struct linux_binprm *bprm)
@@ -608,9 +591,9 @@ int security_file_receive(struct file *file)
        return security_ops->file_receive(file);
 }
 
-int security_dentry_open(struct file *file)
+int security_dentry_open(struct file *file, const struct cred *cred)
 {
-       return security_ops->dentry_open(file);
+       return security_ops->dentry_open(file, cred);
 }
 
 int security_task_create(unsigned long clone_flags)
@@ -618,14 +601,19 @@ int security_task_create(unsigned long clone_flags)
        return security_ops->task_create(clone_flags);
 }
 
-int security_task_alloc(struct task_struct *p)
+void security_cred_free(struct cred *cred)
 {
-       return security_ops->task_alloc_security(p);
+       security_ops->cred_free(cred);
 }
 
-void security_task_free(struct task_struct *p)
+int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 {
-       security_ops->task_free_security(p);
+       return security_ops->cred_prepare(new, old, gfp);
+}
+
+void security_commit_creds(struct cred *new, const struct cred *old)
+{
+       return security_ops->cred_commit(new, old);
 }
 
 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
@@ -633,10 +621,10 @@ int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
        return security_ops->task_setuid(id0, id1, id2, flags);
 }
 
-int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
-                              uid_t old_suid, int flags)
+int security_task_fix_setuid(struct cred *new, const struct cred *old,
+                            int flags)
 {
-       return security_ops->task_post_setuid(old_ruid, old_euid, old_suid, flags);
+       return security_ops->task_fix_setuid(new, old, flags);
 }
 
 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
@@ -718,14 +706,9 @@ int security_task_wait(struct task_struct *p)
 }
 
 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
-                        unsigned long arg4, unsigned long arg5, long *rc_p)
-{
-       return security_ops->task_prctl(option, arg2, arg3, arg4, arg5, rc_p);
-}
-
-void security_task_reparent_to_init(struct task_struct *p)
+                        unsigned long arg4, unsigned long arg5)
 {
-       security_ops->task_reparent_to_init(p);
+       return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 }
 
 void security_task_to_inode(struct task_struct *p, struct inode *inode)
@@ -1125,9 +1108,10 @@ EXPORT_SYMBOL(security_skb_classify_flow);
 
 #ifdef CONFIG_KEYS
 
-int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags)
+int security_key_alloc(struct key *key, const struct cred *cred,
+                      unsigned long flags)
 {
-       return security_ops->key_alloc(key, tsk, flags);
+       return security_ops->key_alloc(key, cred, flags);
 }
 
 void security_key_free(struct key *key)
@@ -1136,9 +1120,9 @@ void security_key_free(struct key *key)
 }
 
 int security_key_permission(key_ref_t key_ref,
-                           struct task_struct *context, key_perm_t perm)
+                           const struct cred *cred, key_perm_t perm)
 {
-       return security_ops->key_permission(key_ref, context, perm);
+       return security_ops->key_permission(key_ref, cred, perm);
 }
 
 int security_key_getsecurity(struct key *key, char **_buffer)