diff options
Diffstat (limited to 'ipc/ipc_sysctl.c')
| -rw-r--r-- | ipc/ipc_sysctl.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c index 7d3704750ef..56410faa455 100644 --- a/ipc/ipc_sysctl.c +++ b/ipc/ipc_sysctl.c @@ -129,136 +129,60 @@ static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write, #define proc_ipcauto_dointvec_minmax NULL #endif -#ifdef CONFIG_SYSCTL_SYSCALL -/* The generic sysctl ipc data routine. */ -static int sysctl_ipc_data(ctl_table *table, - void __user *oldval, size_t __user *oldlenp, - void __user *newval, size_t newlen) -{ - size_t len; - void *data; - - /* Get out of I don't have a variable */ - if (!table->data || !table->maxlen) - return -ENOTDIR; - - data = get_ipc(table); - if (!data) - return -ENOTDIR; - - if (oldval && oldlenp) { - if (get_user(len, oldlenp)) - return -EFAULT; - if (len) { - if (len > table->maxlen) - len = table->maxlen; - if (copy_to_user(oldval, data, len)) - return -EFAULT; - if (put_user(len, oldlenp)) - return -EFAULT; - } - } - - if (newval && newlen) { - if (newlen > table->maxlen) - newlen = table->maxlen; - - if (copy_from_user(data, newval, newlen)) - return -EFAULT; - } - return 1; -} - -static int sysctl_ipc_registered_data(ctl_table *table, - void __user *oldval, size_t __user *oldlenp, - void __user *newval, size_t newlen) -{ - int rc; - - rc = sysctl_ipc_data(table, oldval, oldlenp, newval, newlen); - - if (newval && newlen && rc > 0) - /* - * Tunable has successfully been changed from userland - */ - unregister_ipcns_notifier(current->nsproxy->ipc_ns); - - return rc; -} -#else -#define sysctl_ipc_data NULL -#define sysctl_ipc_registered_data NULL -#endif - static int zero; static int one = 1; static struct ctl_table ipc_kern_table[] = { { - .ctl_name = KERN_SHMMAX, .procname = "shmmax", .data = &init_ipc_ns.shm_ctlmax, .maxlen = sizeof (init_ipc_ns.shm_ctlmax), .mode = 0644, .proc_handler = proc_ipc_doulongvec_minmax, - .strategy = sysctl_ipc_data, }, { - .ctl_name = KERN_SHMALL, .procname = "shmall", .data = &init_ipc_ns.shm_ctlall, .maxlen = sizeof (init_ipc_ns.shm_ctlall), .mode = 0644, .proc_handler = proc_ipc_doulongvec_minmax, - .strategy = sysctl_ipc_data, }, { - .ctl_name = KERN_SHMMNI, .procname = "shmmni", .data = &init_ipc_ns.shm_ctlmni, .maxlen = sizeof (init_ipc_ns.shm_ctlmni), .mode = 0644, .proc_handler = proc_ipc_dointvec, - .strategy = sysctl_ipc_data, }, { - .ctl_name = KERN_MSGMAX, .procname = "msgmax", .data = &init_ipc_ns.msg_ctlmax, .maxlen = sizeof (init_ipc_ns.msg_ctlmax), .mode = 0644, .proc_handler = proc_ipc_dointvec, - .strategy = sysctl_ipc_data, }, { - .ctl_name = KERN_MSGMNI, .procname = "msgmni", .data = &init_ipc_ns.msg_ctlmni, .maxlen = sizeof (init_ipc_ns.msg_ctlmni), .mode = 0644, .proc_handler = proc_ipc_callback_dointvec, - .strategy = sysctl_ipc_registered_data, }, { - .ctl_name = KERN_MSGMNB, .procname = "msgmnb", .data = &init_ipc_ns.msg_ctlmnb, .maxlen = sizeof (init_ipc_ns.msg_ctlmnb), .mode = 0644, .proc_handler = proc_ipc_dointvec, - .strategy = sysctl_ipc_data, }, { - .ctl_name = KERN_SEM, .procname = "sem", .data = &init_ipc_ns.sem_ctls, .maxlen = 4*sizeof (int), .mode = 0644, .proc_handler = proc_ipc_dointvec, - .strategy = sysctl_ipc_data, }, { - .ctl_name = CTL_UNNUMBERED, .procname = "auto_msgmni", .data = &init_ipc_ns.auto_msgmni, .maxlen = sizeof(int), @@ -272,7 +196,6 @@ static struct ctl_table ipc_kern_table[] = { static struct ctl_table ipc_root_table[] = { { - .ctl_name = CTL_KERN, .procname = "kernel", .mode = 0555, .child = ipc_kern_table, |