#include <linux/highuid.h>
#include <linux/writeback.h>
#include <linux/hugetlb.h>
-#include <linux/security.h>
#include <linux/initrd.h>
+#include <linux/key.h>
#include <linux/times.h>
#include <linux/limits.h>
#include <linux/dcache.h>
extern char core_pattern[];
extern int pid_max;
extern int min_free_kbytes;
-extern int printk_ratelimit_jiffies;
-extern int printk_ratelimit_burst;
extern int pid_max_min, pid_max_max;
extern int sysctl_drop_caches;
extern int percpu_pagelist_fraction;
extern int maps_protect;
extern int sysctl_stat_interval;
extern int latencytop_enabled;
+extern int sysctl_nr_open_min, sysctl_nr_open_max;
/* Constants used for minimum and maximum */
#if defined(CONFIG_DETECT_SOFTLOCKUP) || defined(CONFIG_HIGHMEM)
extern int max_lock_depth;
#endif
-#ifdef CONFIG_SYSCTL_SYSCALL
-static int parse_table(int __user *, int, void __user *, size_t __user *,
- void __user *, size_t, struct ctl_table *);
-#endif
-
-
#ifdef CONFIG_PROC_SYSCTL
static int proc_do_cad_pid(struct ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos);
},
{
.ctl_name = CTL_UNNUMBERED,
- .procname = "sched_batch_wakeup_granularity_ns",
- .data = &sysctl_sched_batch_wakeup_granularity,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
- .extra1 = &min_wakeup_granularity_ns,
- .extra2 = &max_wakeup_granularity_ns,
- },
- {
- .ctl_name = CTL_UNNUMBERED,
.procname = "sched_child_runs_first",
.data = &sysctl_sched_child_runs_first,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
+#endif
{
.ctl_name = CTL_UNNUMBERED,
- .procname = "sched_rt_period_ms",
+ .procname = "sched_rt_period_us",
.data = &sysctl_sched_rt_period,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &sched_rt_handler,
},
{
.ctl_name = CTL_UNNUMBERED,
- .procname = "sched_rt_ratio",
- .data = &sysctl_sched_rt_ratio,
- .maxlen = sizeof(unsigned int),
+ .procname = "sched_rt_runtime_us",
+ .data = &sysctl_sched_rt_runtime,
+ .maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
- },
-#if defined(CONFIG_FAIR_GROUP_SCHED) && defined(CONFIG_SMP)
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "sched_min_bal_int_shares",
- .data = &sysctl_sched_min_bal_int_shares,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &sched_rt_handler,
},
{
- .ctl_name = CTL_UNNUMBERED,
- .procname = "sched_max_bal_int_shares",
- .data = &sysctl_sched_max_bal_int_shares,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
-#endif
-#endif
- {
.ctl_name = CTL_UNNUMBERED,
.procname = "sched_compat_yield",
.data = &sysctl_sched_compat_yield,
.mode = 0644,
.proc_handler = &proc_dointvec,
},
- {
- .ctl_name = KERN_PRINTK,
- .procname = "printk",
- .data = &console_loglevel,
- .maxlen = 4*sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec,
- },
#ifdef CONFIG_KMOD
{
.ctl_name = KERN_MODPROBE,
.mode = 0644,
.proc_handler = &proc_dointvec,
},
+#if defined CONFIG_PRINTK
+ {
+ .ctl_name = KERN_PRINTK,
+ .procname = "printk",
+ .data = &console_loglevel,
+ .maxlen = 4*sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
{
.ctl_name = KERN_PRINTK_RATELIMIT,
.procname = "printk_ratelimit",
.mode = 0644,
.proc_handler = &proc_dointvec,
},
+#endif
{
.ctl_name = KERN_NGROUPS_MAX,
.procname = "ngroups_max",
.proc_handler = &proc_dostring,
.strategy = &sysctl_string,
},
+#ifdef CONFIG_KEYS
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "keys",
+ .mode = 0555,
+ .child = key_sysctls,
+ },
+#endif
/*
* NOTE: do not add new entries to this table unless you have read
* Documentation/sysctl/ctl_unnumbered.txt
{
.ctl_name = CTL_UNNUMBERED,
.procname = "nr_overcommit_hugepages",
- .data = &nr_overcommit_huge_pages,
- .maxlen = sizeof(nr_overcommit_huge_pages),
+ .data = &sysctl_overcommit_huge_pages,
+ .maxlen = sizeof(sysctl_overcommit_huge_pages),
.mode = 0644,
.proc_handler = &hugetlb_overcommit_handler,
},
.data = &sysctl_nr_open,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_dointvec_minmax,
+ .extra1 = &sysctl_nr_open_min,
+ .extra2 = &sysctl_nr_open_max,
},
{
.ctl_name = FS_DENTRY,
}
#ifdef CONFIG_SYSCTL_SYSCALL
+/* Perform the actual read/write of a sysctl table entry. */
+static int do_sysctl_strategy(struct ctl_table_root *root,
+ struct ctl_table *table,
+ int __user *name, int nlen,
+ void __user *oldval, size_t __user *oldlenp,
+ void __user *newval, size_t newlen)
+{
+ int op = 0, rc;
+
+ if (oldval)
+ op |= 004;
+ if (newval)
+ op |= 002;
+ if (sysctl_perm(root, table, op))
+ return -EPERM;
+
+ if (table->strategy) {
+ rc = table->strategy(table, name, nlen, oldval, oldlenp,
+ newval, newlen);
+ if (rc < 0)
+ return rc;
+ if (rc > 0)
+ return 0;
+ }
+
+ /* If there is no strategy routine, or if the strategy returns
+ * zero, proceed with automatic r/w */
+ if (table->data && table->maxlen) {
+ rc = sysctl_data(table, name, nlen, oldval, oldlenp,
+ newval, newlen);
+ if (rc < 0)
+ return rc;
+ }
+ return 0;
+}
+
+static int parse_table(int __user *name, int nlen,
+ void __user *oldval, size_t __user *oldlenp,
+ void __user *newval, size_t newlen,
+ struct ctl_table_root *root,
+ struct ctl_table *table)
+{
+ int n;
+repeat:
+ if (!nlen)
+ return -ENOTDIR;
+ if (get_user(n, name))
+ return -EFAULT;
+ for ( ; table->ctl_name || table->procname; table++) {
+ if (!table->ctl_name)
+ continue;
+ if (n == table->ctl_name) {
+ int error;
+ if (table->child) {
+ if (sysctl_perm(root, table, 001))
+ return -EPERM;
+ name++;
+ nlen--;
+ table = table->child;
+ goto repeat;
+ }
+ error = do_sysctl_strategy(root, table, name, nlen,
+ oldval, oldlenp,
+ newval, newlen);
+ return error;
+ }
+ }
+ return -ENOTDIR;
+}
+
int do_sysctl(int __user *name, int nlen, void __user *oldval, size_t __user *oldlenp,
void __user *newval, size_t newlen)
{
for (head = sysctl_head_next(NULL); head;
head = sysctl_head_next(head)) {
error = parse_table(name, nlen, oldval, oldlenp,
- newval, newlen, head->ctl_table);
+ newval, newlen,
+ head->root, head->ctl_table);
if (error != -ENOTDIR) {
sysctl_head_finish(head);
break;
return -EACCES;
}
-int sysctl_perm(struct ctl_table *table, int op)
+int sysctl_perm(struct ctl_table_root *root, struct ctl_table *table, int op)
{
int error;
+ int mode;
+
error = security_sysctl(table, op);
if (error)
return error;
- return test_perm(table->mode, op);
-}
-#ifdef CONFIG_SYSCTL_SYSCALL
-static int parse_table(int __user *name, int nlen,
- void __user *oldval, size_t __user *oldlenp,
- void __user *newval, size_t newlen,
- struct ctl_table *table)
-{
- int n;
-repeat:
- if (!nlen)
- return -ENOTDIR;
- if (get_user(n, name))
- return -EFAULT;
- for ( ; table->ctl_name || table->procname; table++) {
- if (!table->ctl_name)
- continue;
- if (n == table->ctl_name) {
- int error;
- if (table->child) {
- if (sysctl_perm(table, 001))
- return -EPERM;
- name++;
- nlen--;
- table = table->child;
- goto repeat;
- }
- error = do_sysctl_strategy(table, name, nlen,
- oldval, oldlenp,
- newval, newlen);
- return error;
- }
- }
- return -ENOTDIR;
-}
-
-/* Perform the actual read/write of a sysctl table entry. */
-int do_sysctl_strategy (struct ctl_table *table,
- int __user *name, int nlen,
- void __user *oldval, size_t __user *oldlenp,
- void __user *newval, size_t newlen)
-{
- int op = 0, rc;
-
- if (oldval)
- op |= 004;
- if (newval)
- op |= 002;
- if (sysctl_perm(table, op))
- return -EPERM;
+ if (root->permissions)
+ mode = root->permissions(root, current->nsproxy, table);
+ else
+ mode = table->mode;
- if (table->strategy) {
- rc = table->strategy(table, name, nlen, oldval, oldlenp,
- newval, newlen);
- if (rc < 0)
- return rc;
- if (rc > 0)
- return 0;
- }
-
- /* If there is no strategy routine, or if the strategy returns
- * zero, proceed with automatic r/w */
- if (table->data && table->maxlen) {
- rc = sysctl_data(table, name, nlen, oldval, oldlenp,
- newval, newlen);
- if (rc < 0)
- return rc;
- }
- return 0;
+ return test_perm(mode, op);
}
-#endif /* CONFIG_SYSCTL_SYSCALL */
static void sysctl_set_parent(struct ctl_table *parent, struct ctl_table *table)
{
static __init int sysctl_init(void)
{
- int err;
sysctl_set_parent(NULL, root_table);
- err = sysctl_check_table(current->nsproxy, root_table);
+#ifdef CONFIG_SYSCTL_SYSCALL_CHECK
+ {
+ int err;
+ err = sysctl_check_table(current->nsproxy, root_table);
+ }
+#endif
return 0;
}
header->unregistering = NULL;
header->root = root;
sysctl_set_parent(NULL, header->ctl_table);
+#ifdef CONFIG_SYSCTL_SYSCALL_CHECK
if (sysctl_check_table(namespaces, header->ctl_table)) {
kfree(header);
return NULL;
}
+#endif
spin_lock(&sysctl_lock);
header_list = lookup_header_list(root, namespaces);
list_add_tail(&header->ctl_entry, header_list);
pid_t tmp;
int r;
- tmp = pid_nr_ns(cad_pid, current->nsproxy->pid_ns);
+ tmp = pid_vnr(cad_pid);
r = __do_proc_dointvec(&tmp, table, write, filp, buffer,
lenp, ppos, NULL, NULL);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff