summaryrefslogtreecommitdiffstats
path: root/net/core
diff options
context:
space:
mode:
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c12
-rw-r--r--net/core/dst.c2
-rw-r--r--net/core/ethtool.c25
-rw-r--r--net/core/fib_rules.c1
-rw-r--r--net/core/filter.c5
-rw-r--r--net/core/net_namespace.c65
-rw-r--r--net/core/rtnetlink.c14
-rw-r--r--net/core/sysctl_net_core.c1
-rw-r--r--net/core/utils.c1
9 files changed, 119 insertions, 7 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index bcb05cb799c..c7e305d13b7 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1308,6 +1308,13 @@ void dev_disable_lro(struct net_device *dev)
{
u32 flags;
+ /*
+ * If we're trying to disable lro on a vlan device
+ * use the underlying physical device instead
+ */
+ if (is_vlan_dev(dev))
+ dev = vlan_dev_real_dev(dev);
+
if (dev->ethtool_ops && dev->ethtool_ops->get_flags)
flags = dev->ethtool_ops->get_flags(dev);
else
@@ -5954,7 +5961,10 @@ EXPORT_SYMBOL(free_netdev);
void synchronize_net(void)
{
might_sleep();
- synchronize_rcu();
+ if (rtnl_is_locked())
+ synchronize_rcu_expedited();
+ else
+ synchronize_rcu();
}
EXPORT_SYMBOL(synchronize_net);
diff --git a/net/core/dst.c b/net/core/dst.c
index 81a4fa1c95e..9ccca038444 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -315,7 +315,7 @@ void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old)
{
unsigned long prev, new;
- new = (unsigned long) dst_default_metrics;
+ new = ((unsigned long) dst_default_metrics) | DST_METRICS_READ_ONLY;
prev = cmpxchg(&dst->_metrics, old, new);
if (prev == old)
kfree(__DST_METRICS_PTR(old));
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 84e7304532e..fd14116ad7f 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -233,6 +233,29 @@ static int ethtool_set_feature_compat(struct net_device *dev,
return 1;
}
+static int ethtool_set_flags_compat(struct net_device *dev,
+ int (*legacy_set)(struct net_device *, u32),
+ struct ethtool_set_features_block *features, u32 mask)
+{
+ u32 value;
+
+ if (!legacy_set)
+ return 0;
+
+ if (!(features[0].valid & mask))
+ return 0;
+
+ value = dev->features & ~features[0].valid;
+ value |= features[0].requested;
+
+ features[0].valid &= ~mask;
+
+ if (legacy_set(dev, value & mask) < 0)
+ netdev_info(dev, "Legacy flags change failed\n");
+
+ return 1;
+}
+
static int ethtool_set_features_compat(struct net_device *dev,
struct ethtool_set_features_block *features)
{
@@ -249,7 +272,7 @@ static int ethtool_set_features_compat(struct net_device *dev,
features, NETIF_F_ALL_TSO);
compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_rx_csum,
features, NETIF_F_RXCSUM);
- compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_flags,
+ compat |= ethtool_set_flags_compat(dev, dev->ethtool_ops->set_flags,
features, flags_dup_features);
return compat;
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 3911586e12e..008dc70b064 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -602,6 +602,7 @@ static int dump_rules(struct sk_buff *skb, struct netlink_callback *cb,
skip:
idx++;
}
+ rcu_read_unlock();
cb->args[1] = idx;
rules_ops_put(ops);
diff --git a/net/core/filter.c b/net/core/filter.c
index 0eb8c4466ea..36f975fa87c 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -38,6 +38,7 @@
#include <asm/unaligned.h>
#include <linux/filter.h>
#include <linux/reciprocal_div.h>
+#include <linux/ratelimit.h>
/* No hurry in this branch */
static void *__load_pointer(const struct sk_buff *skb, int k, unsigned int size)
@@ -350,7 +351,9 @@ load_b:
continue;
}
default:
- WARN_ON(1);
+ WARN_RATELIMIT(1, "Unknown code:%u jt:%u tf:%u k:%u\n",
+ fentry->code, fentry->jt,
+ fentry->jf, fentry->k);
return 0;
}
}
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 2e2dce6583e..6c6b86d0da1 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -8,6 +8,8 @@
#include <linux/idr.h>
#include <linux/rculist.h>
#include <linux/nsproxy.h>
+#include <linux/proc_fs.h>
+#include <linux/file.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
@@ -302,6 +304,28 @@ void __put_net(struct net *net)
}
EXPORT_SYMBOL_GPL(__put_net);
+struct net *get_net_ns_by_fd(int fd)
+{
+ struct proc_inode *ei;
+ struct file *file;
+ struct net *net;
+
+ net = ERR_PTR(-EINVAL);
+ file = proc_ns_fget(fd);
+ if (!file)
+ goto out;
+
+ ei = PROC_I(file->f_dentry->d_inode);
+ if (ei->ns_ops != &netns_operations)
+ goto out;
+
+ net = get_net(ei->ns);
+out:
+ if (file)
+ fput(file);
+ return net;
+}
+
#else
struct net *copy_net_ns(unsigned long flags, struct net *old_net)
{
@@ -309,6 +333,11 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
return ERR_PTR(-EINVAL);
return old_net;
}
+
+struct net *get_net_ns_by_fd(int fd)
+{
+ return ERR_PTR(-EINVAL);
+}
#endif
struct net *get_net_ns_by_pid(pid_t pid)
@@ -561,3 +590,39 @@ void unregister_pernet_device(struct pernet_operations *ops)
mutex_unlock(&net_mutex);
}
EXPORT_SYMBOL_GPL(unregister_pernet_device);
+
+#ifdef CONFIG_NET_NS
+static void *netns_get(struct task_struct *task)
+{
+ struct net *net = NULL;
+ struct nsproxy *nsproxy;
+
+ rcu_read_lock();
+ nsproxy = task_nsproxy(task);
+ if (nsproxy)
+ net = get_net(nsproxy->net_ns);
+ rcu_read_unlock();
+
+ return net;
+}
+
+static void netns_put(void *ns)
+{
+ put_net(ns);
+}
+
+static int netns_install(struct nsproxy *nsproxy, void *ns)
+{
+ put_net(nsproxy->net_ns);
+ nsproxy->net_ns = get_net(ns);
+ return 0;
+}
+
+const struct proc_ns_operations netns_operations = {
+ .name = "net",
+ .type = CLONE_NEWNET,
+ .get = netns_get,
+ .put = netns_put,
+ .install = netns_install,
+};
+#endif
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index d1644e317e7..abd936d8a71 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -850,6 +850,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
struct nlattr *attr, *af_spec;
struct rtnl_af_ops *af_ops;
+ ASSERT_RTNL();
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags);
if (nlh == NULL)
return -EMSGSIZE;
@@ -1045,6 +1046,7 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = {
[IFLA_LINKMODE] = { .type = NLA_U8 },
[IFLA_LINKINFO] = { .type = NLA_NESTED },
[IFLA_NET_NS_PID] = { .type = NLA_U32 },
+ [IFLA_NET_NS_FD] = { .type = NLA_U32 },
[IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 },
[IFLA_VFINFO_LIST] = {. type = NLA_NESTED },
[IFLA_VF_PORTS] = { .type = NLA_NESTED },
@@ -1093,6 +1095,8 @@ struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[])
*/
if (tb[IFLA_NET_NS_PID])
net = get_net_ns_by_pid(nla_get_u32(tb[IFLA_NET_NS_PID]));
+ else if (tb[IFLA_NET_NS_FD])
+ net = get_net_ns_by_fd(nla_get_u32(tb[IFLA_NET_NS_FD]));
else
net = get_net(src_net);
return net;
@@ -1223,7 +1227,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
int send_addr_notify = 0;
int err;
- if (tb[IFLA_NET_NS_PID]) {
+ if (tb[IFLA_NET_NS_PID] || tb[IFLA_NET_NS_FD]) {
struct net *net = rtnl_link_get_net(dev_net(dev), tb);
if (IS_ERR(net)) {
err = PTR_ERR(net);
@@ -1876,6 +1880,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
int min_len;
int family;
int type;
+ int err;
type = nlh->nlmsg_type;
if (type > RTM_MAX)
@@ -1902,8 +1907,11 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
if (dumpit == NULL)
return -EOPNOTSUPP;
+ __rtnl_unlock();
rtnl = net->rtnl;
- return netlink_dump_start(rtnl, skb, nlh, dumpit, NULL);
+ err = netlink_dump_start(rtnl, skb, nlh, dumpit, NULL);
+ rtnl_lock();
+ return err;
}
memset(rta_buf, 0, (rtattr_max * sizeof(struct rtattr *)));
@@ -1975,7 +1983,7 @@ static int __net_init rtnetlink_net_init(struct net *net)
{
struct sock *sk;
sk = netlink_kernel_create(net, NETLINK_ROUTE, RTNLGRP_MAX,
- rtnetlink_rcv, NULL, THIS_MODULE);
+ rtnetlink_rcv, &rtnl_mutex, THIS_MODULE);
if (!sk)
return -ENOMEM;
net->rtnl = sk;
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index a829e3f60ae..77a65f03148 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -17,6 +17,7 @@
#include <net/ip.h>
#include <net/sock.h>
+#include <net/net_ratelimit.h>
#ifdef CONFIG_RPS
static int rps_sock_flow_sysctl(ctl_table *table, int write,
diff --git a/net/core/utils.c b/net/core/utils.c
index 2012bc797f9..386e263f606 100644
--- a/net/core/utils.c
+++ b/net/core/utils.c
@@ -27,6 +27,7 @@
#include <linux/ratelimit.h>
#include <net/sock.h>
+#include <net/net_ratelimit.h>
#include <asm/byteorder.h>
#include <asm/system.h>
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-04-12 09:29:28 +0000