#include <linux/module.h>
#include <linux/socket.h>
#include <linux/netdevice.h>
+#include <linux/ratelimit.h>
+#include <linux/vmalloc.h>
#include <linux/init.h>
+#include <linux/slab.h>
+
+#include <net/ip.h>
#include <net/sock.h>
-#include <net/xfrm.h>
+
+#ifdef CONFIG_RPS
+static int rps_sock_flow_sysctl(ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ unsigned int orig_size, size;
+ int ret, i;
+ ctl_table tmp = {
+ .data = &size,
+ .maxlen = sizeof(size),
+ .mode = table->mode
+ };
+ struct rps_sock_flow_table *orig_sock_table, *sock_table;
+ static DEFINE_MUTEX(sock_flow_mutex);
+
+ mutex_lock(&sock_flow_mutex);
+
+ orig_sock_table = rps_sock_flow_table;
+ size = orig_size = orig_sock_table ? orig_sock_table->mask + 1 : 0;
+
+ ret = proc_dointvec(&tmp, write, buffer, lenp, ppos);
+
+ if (write) {
+ if (size) {
+ if (size > 1<<30) {
+ /* Enforce limit to prevent overflow */
+ mutex_unlock(&sock_flow_mutex);
+ return -EINVAL;
+ }
+ size = roundup_pow_of_two(size);
+ if (size != orig_size) {
+ sock_table =
+ vmalloc(RPS_SOCK_FLOW_TABLE_SIZE(size));
+ if (!sock_table) {
+ mutex_unlock(&sock_flow_mutex);
+ return -ENOMEM;
+ }
+
+ sock_table->mask = size - 1;
+ } else
+ sock_table = orig_sock_table;
+
+ for (i = 0; i < size; i++)
+ sock_table->ents[i] = RPS_NO_CPU;
+ } else
+ sock_table = NULL;
+
+ if (sock_table != orig_sock_table) {
+ rcu_assign_pointer(rps_sock_flow_table, sock_table);
+ synchronize_rcu();
+ vfree(orig_sock_table);
+ }
+ }
+
+ mutex_unlock(&sock_flow_mutex);
+
+ return ret;
+}
+#endif /* CONFIG_RPS */
static struct ctl_table net_core_table[] = {
#ifdef CONFIG_NET
{
- .ctl_name = NET_CORE_WMEM_MAX,
.procname = "wmem_max",
.data = &sysctl_wmem_max,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
- .ctl_name = NET_CORE_RMEM_MAX,
.procname = "rmem_max",
.data = &sysctl_rmem_max,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
- .ctl_name = NET_CORE_WMEM_DEFAULT,
.procname = "wmem_default",
.data = &sysctl_wmem_default,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
- .ctl_name = NET_CORE_RMEM_DEFAULT,
.procname = "rmem_default",
.data = &sysctl_rmem_default,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
- .ctl_name = NET_CORE_DEV_WEIGHT,
.procname = "dev_weight",
.data = &weight_p,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
- .ctl_name = NET_CORE_MAX_BACKLOG,
.procname = "netdev_max_backlog",
.data = &netdev_max_backlog,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
- .ctl_name = NET_CORE_MSG_COST,
- .procname = "message_cost",
- .data = &net_msg_cost,
+ .procname = "netdev_tstamp_prequeue",
+ .data = &netdev_tstamp_prequeue,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- .strategy = &sysctl_jiffies,
+ .proc_handler = proc_dointvec
},
{
- .ctl_name = NET_CORE_MSG_BURST,
- .procname = "message_burst",
- .data = &net_msg_burst,
+ .procname = "message_cost",
+ .data = &net_ratelimit_state.interval,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec_jiffies,
},
{
- .ctl_name = NET_CORE_OPTMEM_MAX,
- .procname = "optmem_max",
- .data = &sysctl_optmem_max,
+ .procname = "message_burst",
+ .data = &net_ratelimit_state.burst,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec,
},
-#ifdef CONFIG_XFRM
{
- .ctl_name = NET_CORE_AEVENT_ETIME,
- .procname = "xfrm_aevent_etime",
- .data = &sysctl_xfrm_aevent_etime,
- .maxlen = sizeof(u32),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = NET_CORE_AEVENT_RSEQTH,
- .procname = "xfrm_aevent_rseqth",
- .data = &sysctl_xfrm_aevent_rseqth,
- .maxlen = sizeof(u32),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "xfrm_larval_drop",
- .data = &sysctl_xfrm_larval_drop,
+ .procname = "optmem_max",
+ .data = &sysctl_optmem_max,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
+#ifdef CONFIG_RPS
{
- .ctl_name = CTL_UNNUMBERED,
- .procname = "xfrm_acq_expires",
- .data = &sysctl_xfrm_acq_expires,
+ .procname = "rps_sock_flow_entries",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = rps_sock_flow_sysctl
},
-#endif /* CONFIG_XFRM */
+#endif
#endif /* CONFIG_NET */
{
- .ctl_name = NET_CORE_SOMAXCONN,
- .procname = "somaxconn",
- .data = &sysctl_somaxconn,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = NET_CORE_BUDGET,
.procname = "netdev_budget",
.data = &netdev_budget,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
{
- .ctl_name = NET_CORE_WARNINGS,
.procname = "warnings",
.data = &net_msg_warn,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = proc_dointvec
},
- { .ctl_name = 0 }
+ { }
};
-static __net_initdata struct ctl_path net_core_path[] = {
- { .procname = "net", .ctl_name = CTL_NET, },
- { .procname = "core", .ctl_name = NET_CORE, },
+static struct ctl_table netns_core_table[] = {
+ {
+ .procname = "somaxconn",
+ .data = &init_net.core.sysctl_somaxconn,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec
+ },
+ { }
+};
+
+__net_initdata struct ctl_path net_core_path[] = {
+ { .procname = "net", },
+ { .procname = "core", },
{ },
};
static __net_init int sysctl_core_net_init(struct net *net)
{
- struct ctl_table *tbl, *tmp;
+ struct ctl_table *tbl;
- tbl = net_core_table;
- if (net != &init_net) {
- tbl = kmemdup(tbl, sizeof(net_core_table), GFP_KERNEL);
+ net->core.sysctl_somaxconn = SOMAXCONN;
+
+ tbl = netns_core_table;
+ if (!net_eq(net, &init_net)) {
+ tbl = kmemdup(tbl, sizeof(netns_core_table), GFP_KERNEL);
if (tbl == NULL)
goto err_dup;
- for (tmp = tbl; tmp->procname; tmp++)
- tmp->mode &= ~0222;
+ tbl[0].data = &net->core.sysctl_somaxconn;
}
- net->sysctl_core_hdr = register_net_sysctl_table(net,
+ net->core.sysctl_hdr = register_net_sysctl_table(net,
net_core_path, tbl);
- if (net->sysctl_core_hdr == NULL)
+ if (net->core.sysctl_hdr == NULL)
goto err_reg;
return 0;
err_reg:
- if (tbl != net_core_table)
+ if (tbl != netns_core_table)
kfree(tbl);
err_dup:
return -ENOMEM;
{
struct ctl_table *tbl;
- tbl = net->sysctl_core_hdr->ctl_table_arg;
- unregister_net_sysctl_table(net->sysctl_core_hdr);
- BUG_ON(tbl == net_core_table);
+ tbl = net->core.sysctl_hdr->ctl_table_arg;
+ unregister_net_sysctl_table(net->core.sysctl_hdr);
+ BUG_ON(tbl == netns_core_table);
kfree(tbl);
}
static __init int sysctl_core_init(void)
{
+ static struct ctl_table empty[1];
+
+ register_sysctl_paths(net_core_path, empty);
+ register_net_sysctl_rotable(net_core_path, net_core_table);
return register_pernet_subsys(&sysctl_core_ops);
}
-__initcall(sysctl_core_init);
+fs_initcall(sysctl_core_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff