diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/selinux/hooks.c | 68 |
1 files changed, 10 insertions, 58 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index d9604794a4d..a69d6f8970c 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1892,6 +1892,16 @@ static int selinux_capset(struct cred *new, const struct cred *old, return cred_has_perm(old, new, PROCESS__SETCAP); } +/* + * (This comment used to live with the selinux_task_setuid hook, + * which was removed). + * + * Since setuid only affects the current process, and since the SELinux + * controls are not based on the Linux identity attributes, SELinux does not + * need to control this operation. However, SELinux does control the use of + * the CAP_SETUID and CAP_SETGID capabilities using the capable hook. + */ + static int selinux_capable(struct task_struct *tsk, const struct cred *cred, int cap, int audit) { @@ -2909,16 +2919,6 @@ static int selinux_inode_listsecurity(struct inode *inode, char *buffer, size_t return len; } -static int selinux_inode_need_killpriv(struct dentry *dentry) -{ - return secondary_ops->inode_need_killpriv(dentry); -} - -static int selinux_inode_killpriv(struct dentry *dentry) -{ - return secondary_ops->inode_killpriv(dentry); -} - static void selinux_inode_getsecid(const struct inode *inode, u32 *secid) { struct inode_security_struct *isec = inode->i_security; @@ -3288,29 +3288,6 @@ static int selinux_kernel_create_files_as(struct cred *new, struct inode *inode) return 0; } -static int selinux_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags) -{ - /* Since setuid only affects the current process, and - since the SELinux controls are not based on the Linux - identity attributes, SELinux does not need to control - this operation. However, SELinux does control the use - of the CAP_SETUID and CAP_SETGID capabilities using the - capable hook. */ - return 0; -} - -static int selinux_task_fix_setuid(struct cred *new, const struct cred *old, - int flags) -{ - return secondary_ops->task_fix_setuid(new, old, flags); -} - -static int selinux_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags) -{ - /* See the comment for setuid above. */ - return 0; -} - static int selinux_task_setpgid(struct task_struct *p, pid_t pgid) { return current_has_perm(p, PROCESS__SETPGID); @@ -3331,12 +3308,6 @@ static void selinux_task_getsecid(struct task_struct *p, u32 *secid) *secid = task_sid(p); } -static int selinux_task_setgroups(struct group_info *group_info) -{ - /* See the comment for setuid above. */ - return 0; -} - static int selinux_task_setnice(struct task_struct *p, int nice) { int rc; @@ -3417,18 +3388,6 @@ static int selinux_task_kill(struct task_struct *p, struct siginfo *info, return rc; } -static int selinux_task_prctl(int option, - unsigned long arg2, - unsigned long arg3, - unsigned long arg4, - unsigned long arg5) -{ - /* The current prctl operations do not appear to require - any SELinux controls since they merely observe or modify - the state of the current process. */ - return secondary_ops->task_prctl(option, arg2, arg3, arg4, arg5); -} - static int selinux_task_wait(struct task_struct *p) { return task_has_perm(p, current, PROCESS__SIGCHLD); @@ -5563,8 +5522,6 @@ static struct security_operations selinux_ops = { .inode_getsecurity = selinux_inode_getsecurity, .inode_setsecurity = selinux_inode_setsecurity, .inode_listsecurity = selinux_inode_listsecurity, - .inode_need_killpriv = selinux_inode_need_killpriv, - .inode_killpriv = selinux_inode_killpriv, .inode_getsecid = selinux_inode_getsecid, .file_permission = selinux_file_permission, @@ -5586,14 +5543,10 @@ static struct security_operations selinux_ops = { .cred_prepare = selinux_cred_prepare, .kernel_act_as = selinux_kernel_act_as, .kernel_create_files_as = selinux_kernel_create_files_as, - .task_setuid = selinux_task_setuid, - .task_fix_setuid = selinux_task_fix_setuid, - .task_setgid = selinux_task_setgid, .task_setpgid = selinux_task_setpgid, .task_getpgid = selinux_task_getpgid, .task_getsid = selinux_task_getsid, .task_getsecid = selinux_task_getsecid, - .task_setgroups = selinux_task_setgroups, .task_setnice = selinux_task_setnice, .task_setioprio = selinux_task_setioprio, .task_getioprio = selinux_task_getioprio, @@ -5603,7 +5556,6 @@ static struct security_operations selinux_ops = { .task_movememory = selinux_task_movememory, .task_kill = selinux_task_kill, .task_wait = selinux_task_wait, - .task_prctl = selinux_task_prctl, .task_to_inode = selinux_task_to_inode, .ipc_permission = selinux_ipc_permission, |