extern int core_uses_pid;
extern int suid_dumpable;
extern char core_pattern[];
-extern int cad_pid;
extern int pid_max;
extern int min_free_kbytes;
extern int printk_ratelimit_jiffies;
extern int sg_big_buff;
#endif
#ifdef CONFIG_SYSVIPC
-extern size_t shm_ctlmax;
-extern size_t shm_ctlall;
-extern int shm_ctlmni;
-extern int msg_ctlmax;
-extern int msg_ctlmnb;
-extern int msg_ctlmni;
-extern int sem_ctls[];
+static int proc_do_ipc_string(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
#endif
#ifdef __sparc__
static int proc_do_uts_string(ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos);
+#ifdef CONFIG_PROC_SYSCTL
+static int proc_do_cad_pid(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
+#endif
+
static ctl_table root_table[];
static struct ctl_table_header root_table_header =
{ root_table, LIST_HEAD_INIT(root_table_header.ctl_entry) };
{
.ctl_name = KERN_SHMMAX,
.procname = "shmmax",
- .data = &shm_ctlmax,
+ .data = NULL,
.maxlen = sizeof (size_t),
.mode = 0644,
- .proc_handler = &proc_doulongvec_minmax,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_SHMALL,
.procname = "shmall",
- .data = &shm_ctlall,
+ .data = NULL,
.maxlen = sizeof (size_t),
.mode = 0644,
- .proc_handler = &proc_doulongvec_minmax,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_SHMMNI,
.procname = "shmmni",
- .data = &shm_ctlmni,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_MSGMAX,
.procname = "msgmax",
- .data = &msg_ctlmax,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_MSGMNI,
.procname = "msgmni",
- .data = &msg_ctlmni,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_MSGMNB,
.procname = "msgmnb",
- .data = &msg_ctlmnb,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_SEM,
.procname = "sem",
- .data = &sem_ctls,
+ .data = NULL,
.maxlen = 4*sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
#endif
#ifdef CONFIG_MAGIC_SYSRQ
.proc_handler = &proc_dointvec,
},
#endif
+#ifdef CONFIG_PROC_SYSCTL
{
.ctl_name = KERN_CADPID,
.procname = "cad_pid",
- .data = &cad_pid,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0600,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_cad_pid,
},
+#endif
{
.ctl_name = KERN_MAX_THREADS,
.procname = "threads-max",
return -ENOTDIR;
if (get_user(n, name))
return -EFAULT;
- for ( ; table->ctl_name; table++) {
+ for ( ; table->ctl_name || table->procname; table++) {
+ if (!table->ctl_name)
+ continue;
if (n == table->ctl_name || table->ctl_name == CTL_ANY) {
int error;
if (table->child) {
int len;
mode_t mode;
- for (; table->ctl_name; table++) {
+ for (; table->ctl_name || table->procname; table++) {
/* Can't do anything without a proc name. */
if (!table->procname)
continue;
static void unregister_proc_table(ctl_table * table, struct proc_dir_entry *root)
{
struct proc_dir_entry *de;
- for (; table->ctl_name; table++) {
+ for (; table->ctl_name || table->procname; table++) {
if (!(de = table->de))
continue;
if (de->mode & S_IFDIR) {
return 0;
}
-static int do_proc_dointvec(ctl_table *table, int write, struct file *filp,
- void __user *buffer, size_t *lenp, loff_t *ppos,
+static int __do_proc_dointvec(void *tbl_data, ctl_table *table,
+ int write, struct file *filp, void __user *buffer,
+ size_t *lenp, loff_t *ppos,
int (*conv)(int *negp, unsigned long *lvalp, int *valp,
int write, void *data),
void *data)
char buf[TMPBUFLEN], *p;
char __user *s = buffer;
- if (!table->data || !table->maxlen || !*lenp ||
+ if (!tbl_data || !table->maxlen || !*lenp ||
(*ppos && !write)) {
*lenp = 0;
return 0;
}
- i = (int *) table->data;
+ i = (int *) tbl_data;
vleft = table->maxlen / sizeof(*i);
left = *lenp;
#undef TMPBUFLEN
}
+static int do_proc_dointvec(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos,
+ int (*conv)(int *negp, unsigned long *lvalp, int *valp,
+ int write, void *data),
+ void *data)
+{
+ return __do_proc_dointvec(table->data, table, write, filp,
+ buffer, lenp, ppos, conv, data);
+}
+
/**
* proc_dointvec - read a vector of integers
* @table: the sysctl table
do_proc_dointvec_minmax_conv, ¶m);
}
-static int do_proc_doulongvec_minmax(ctl_table *table, int write,
+static int __do_proc_doulongvec_minmax(void *data, ctl_table *table, int write,
struct file *filp,
void __user *buffer,
size_t *lenp, loff_t *ppos,
char buf[TMPBUFLEN], *p;
char __user *s = buffer;
- if (!table->data || !table->maxlen || !*lenp ||
+ if (!data || !table->maxlen || !*lenp ||
(*ppos && !write)) {
*lenp = 0;
return 0;
}
- i = (unsigned long *) table->data;
+ i = (unsigned long *) data;
min = (unsigned long *) table->extra1;
max = (unsigned long *) table->extra2;
vleft = table->maxlen / sizeof(unsigned long);
#undef TMPBUFLEN
}
+static int do_proc_doulongvec_minmax(ctl_table *table, int write,
+ struct file *filp,
+ void __user *buffer,
+ size_t *lenp, loff_t *ppos,
+ unsigned long convmul,
+ unsigned long convdiv)
+{
+ return __do_proc_doulongvec_minmax(table->data, table, write,
+ filp, buffer, lenp, ppos, convmul, convdiv);
+}
+
/**
* proc_doulongvec_minmax - read a vector of long integers with min/max values
* @table: the sysctl table
do_proc_dointvec_ms_jiffies_conv, NULL);
}
+#ifdef CONFIG_SYSVIPC
+static int proc_do_ipc_string(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ void *data;
+ struct ipc_namespace *ns;
+
+ ns = current->nsproxy->ipc_ns;
+
+ switch (table->ctl_name) {
+ case KERN_SHMMAX:
+ data = &ns->shm_ctlmax;
+ goto proc_minmax;
+ case KERN_SHMALL:
+ data = &ns->shm_ctlall;
+ goto proc_minmax;
+ case KERN_SHMMNI:
+ data = &ns->shm_ctlmni;
+ break;
+ case KERN_MSGMAX:
+ data = &ns->msg_ctlmax;
+ break;
+ case KERN_MSGMNI:
+ data = &ns->msg_ctlmni;
+ break;
+ case KERN_MSGMNB:
+ data = &ns->msg_ctlmnb;
+ break;
+ case KERN_SEM:
+ data = &ns->sem_ctls;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return __do_proc_dointvec(data, table, write, filp, buffer,
+ lenp, ppos, NULL, NULL);
+proc_minmax:
+ return __do_proc_doulongvec_minmax(data, table, write, filp, buffer,
+ lenp, ppos, 1l, 1l);
+}
+#endif
+
+static int proc_do_cad_pid(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ struct pid *new_pid;
+ pid_t tmp;
+ int r;
+
+ tmp = pid_nr(cad_pid);
+
+ r = __do_proc_dointvec(&tmp, table, write, filp, buffer,
+ lenp, ppos, NULL, NULL);
+ if (r || !write)
+ return r;
+
+ new_pid = find_get_pid(tmp);
+ if (!new_pid)
+ return -ESRCH;
+
+ put_pid(xchg(&cad_pid, new_pid));
+ return 0;
+}
+
#else /* CONFIG_PROC_FS */
int proc_dostring(ctl_table *table, int write, struct file *filp,
asmlinkage long sys_sysctl(struct __sysctl_args __user *args)
{
static int msg_count;
+ struct __sysctl_args tmp;
+ int name[CTL_MAXNAME];
+ int i;
+
+ /* Read in the sysctl name for better debug message logging */
+ if (copy_from_user(&tmp, args, sizeof(tmp)))
+ return -EFAULT;
+ if (tmp.nlen <= 0 || tmp.nlen >= CTL_MAXNAME)
+ return -ENOTDIR;
+ for (i = 0; i < tmp.nlen; i++)
+ if (get_user(name[i], tmp.name + i))
+ return -EFAULT;
+
+ /* Ignore accesses to kernel.version */
+ if ((tmp.nlen == 2) && (name[0] == CTL_KERN) && (name[1] == KERN_VERSION))
+ goto out;
if (msg_count < 5) {
msg_count++;
printk(KERN_INFO
"warning: process `%s' used the removed sysctl "
- "system call\n", current->comm);
+ "system call with ", current->comm);
+ for (i = 0; i < tmp.nlen; i++)
+ printk("%d.", name[i]);
+ printk("\n");
}
+out:
return -ENOSYS;
}
projects / linux-2.6-omap-h63xx.git / blobdiff