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Diffstat (limited to 'net')
-rw-r--r--net/core/dev.c5
-rw-r--r--net/core/ethtool.c329
2 files changed, 333 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 94c1eee..ae75f25 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5419,6 +5419,8 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
netdev_init_queues(dev);
+ INIT_LIST_HEAD(&dev->ethtool_ntuple_list.list);
+ dev->ethtool_ntuple_list.count = 0;
INIT_LIST_HEAD(&dev->napi_list);
INIT_LIST_HEAD(&dev->unreg_list);
INIT_LIST_HEAD(&dev->link_watch_list);
@@ -5455,6 +5457,9 @@ void free_netdev(struct net_device *dev)
/* Flush device addresses */
dev_addr_flush(dev);
+ /* Clear ethtool n-tuple list */
+ ethtool_ntuple_flush(dev);
+
list_for_each_entry_safe(p, n, &dev->napi_list, dev_list)
netif_napi_del(p);
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index d8aee58..6ec73d3 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -120,7 +120,7 @@ int ethtool_op_set_ufo(struct net_device *dev, u32 data)
* NETIF_F_xxx values in include/linux/netdevice.h
*/
static const u32 flags_dup_features =
- ETH_FLAG_LRO;
+ (ETH_FLAG_LRO | ETH_FLAG_NTUPLE);
u32 ethtool_op_get_flags(struct net_device *dev)
{
@@ -139,9 +139,26 @@ int ethtool_op_set_flags(struct net_device *dev, u32 data)
else
dev->features &= ~NETIF_F_LRO;
+ if (data & ETH_FLAG_NTUPLE)
+ dev->features |= NETIF_F_NTUPLE;
+ else
+ dev->features &= ~NETIF_F_NTUPLE;
+
return 0;
}
+void ethtool_ntuple_flush(struct net_device *dev)
+{
+ struct ethtool_rx_ntuple_flow_spec_container *fsc, *f;
+
+ list_for_each_entry_safe(fsc, f, &dev->ethtool_ntuple_list.list, list) {
+ list_del(&fsc->list);
+ kfree(fsc);
+ }
+ dev->ethtool_ntuple_list.count = 0;
+}
+EXPORT_SYMBOL(ethtool_ntuple_flush);
+
/* Handlers for each ethtool command */
static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
@@ -266,6 +283,307 @@ err_out:
return ret;
}
+static int __rx_ntuple_filter_add(struct ethtool_rx_ntuple_list *list,
+ struct ethtool_rx_ntuple_flow_spec *spec)
+{
+ struct ethtool_rx_ntuple_flow_spec_container *fsc;
+
+ /* don't add filters forever */
+ if (list->count >= ETHTOOL_MAX_NTUPLE_LIST_ENTRY)
+ return 0;
+
+ fsc = kmalloc(sizeof(*fsc), GFP_ATOMIC);
+ if (!fsc)
+ return -ENOMEM;
+
+ /* Copy the whole filter over */
+ fsc->fs.flow_type = spec->flow_type;
+ memcpy(&fsc->fs.h_u, &spec->h_u, sizeof(spec->h_u));
+ memcpy(&fsc->fs.m_u, &spec->m_u, sizeof(spec->m_u));
+
+ fsc->fs.vlan_tag = spec->vlan_tag;
+ fsc->fs.vlan_tag_mask = spec->vlan_tag_mask;
+ fsc->fs.data = spec->data;
+ fsc->fs.data_mask = spec->data_mask;
+ fsc->fs.action = spec->action;
+
+ /* add to the list */
+ list_add_tail_rcu(&fsc->list, &list->list);
+ list->count++;
+
+ return 0;
+}
+
+static int ethtool_set_rx_ntuple(struct net_device *dev, void __user *useraddr)
+{
+ struct ethtool_rx_ntuple cmd;
+ const struct ethtool_ops *ops = dev->ethtool_ops;
+ int ret;
+
+ if (!ops->set_rx_ntuple)
+ return -EOPNOTSUPP;
+
+ if (!(dev->features & NETIF_F_NTUPLE))
+ return -EINVAL;
+
+ if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
+ return -EFAULT;
+
+ ret = ops->set_rx_ntuple(dev, &cmd);
+
+ /*
+ * Cache filter in dev struct for GET operation only if
+ * the underlying driver doesn't have its own GET operation, and
+ * only if the filter was added successfully.
+ */
+ if (!ops->get_rx_ntuple && !ret)
+ if (__rx_ntuple_filter_add(&dev->ethtool_ntuple_list, &cmd.fs))
+ return -ENOMEM;
+
+ return ret;
+}
+
+static int ethtool_get_rx_ntuple(struct net_device *dev, void __user *useraddr)
+{
+ struct ethtool_gstrings gstrings;
+ const struct ethtool_ops *ops = dev->ethtool_ops;
+ struct ethtool_rx_ntuple_flow_spec_container *fsc;
+ u8 *data;
+ char *p;
+ int ret, i, num_strings = 0;
+
+ if (!ops->get_sset_count)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
+ return -EFAULT;
+
+ ret = ops->get_sset_count(dev, gstrings.string_set);
+ if (ret < 0)
+ return ret;
+
+ gstrings.len = ret;
+
+ data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
+ if (!data)
+ return -ENOMEM;
+
+ if (ops->get_rx_ntuple) {
+ /* driver-specific filter grab */
+ ret = ops->get_rx_ntuple(dev, gstrings.string_set, data);
+ goto copy;
+ }
+
+ /* default ethtool filter grab */
+ i = 0;
+ p = (char *)data;
+ list_for_each_entry(fsc, &dev->ethtool_ntuple_list.list, list) {
+ sprintf(p, "Filter %d:\n", i);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+
+ switch (fsc->fs.flow_type) {
+ case TCP_V4_FLOW:
+ sprintf(p, "\tFlow Type: TCP\n");
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ case UDP_V4_FLOW:
+ sprintf(p, "\tFlow Type: UDP\n");
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ case SCTP_V4_FLOW:
+ sprintf(p, "\tFlow Type: SCTP\n");
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ case AH_ESP_V4_FLOW:
+ sprintf(p, "\tFlow Type: AH ESP\n");
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ case ESP_V4_FLOW:
+ sprintf(p, "\tFlow Type: ESP\n");
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ case IP_USER_FLOW:
+ sprintf(p, "\tFlow Type: Raw IP\n");
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ case IPV4_FLOW:
+ sprintf(p, "\tFlow Type: IPv4\n");
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ default:
+ sprintf(p, "\tFlow Type: Unknown\n");
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ goto unknown_filter;
+ };
+
+ /* now the rest of the filters */
+ switch (fsc->fs.flow_type) {
+ case TCP_V4_FLOW:
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ sprintf(p, "\tSrc IP addr: 0x%x\n",
+ fsc->fs.h_u.tcp_ip4_spec.ip4src);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tSrc IP mask: 0x%x\n",
+ fsc->fs.m_u.tcp_ip4_spec.ip4src);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tDest IP addr: 0x%x\n",
+ fsc->fs.h_u.tcp_ip4_spec.ip4dst);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tDest IP mask: 0x%x\n",
+ fsc->fs.m_u.tcp_ip4_spec.ip4dst);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tSrc Port: %d, mask: 0x%x\n",
+ fsc->fs.h_u.tcp_ip4_spec.psrc,
+ fsc->fs.m_u.tcp_ip4_spec.psrc);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tDest Port: %d, mask: 0x%x\n",
+ fsc->fs.h_u.tcp_ip4_spec.pdst,
+ fsc->fs.m_u.tcp_ip4_spec.pdst);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tTOS: %d, mask: 0x%x\n",
+ fsc->fs.h_u.tcp_ip4_spec.tos,
+ fsc->fs.m_u.tcp_ip4_spec.tos);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ case AH_ESP_V4_FLOW:
+ case ESP_V4_FLOW:
+ sprintf(p, "\tSrc IP addr: 0x%x\n",
+ fsc->fs.h_u.ah_ip4_spec.ip4src);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tSrc IP mask: 0x%x\n",
+ fsc->fs.m_u.ah_ip4_spec.ip4src);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tDest IP addr: 0x%x\n",
+ fsc->fs.h_u.ah_ip4_spec.ip4dst);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tDest IP mask: 0x%x\n",
+ fsc->fs.m_u.ah_ip4_spec.ip4dst);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tSPI: %d, mask: 0x%x\n",
+ fsc->fs.h_u.ah_ip4_spec.spi,
+ fsc->fs.m_u.ah_ip4_spec.spi);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tTOS: %d, mask: 0x%x\n",
+ fsc->fs.h_u.ah_ip4_spec.tos,
+ fsc->fs.m_u.ah_ip4_spec.tos);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ case IP_USER_FLOW:
+ sprintf(p, "\tSrc IP addr: 0x%x\n",
+ fsc->fs.h_u.raw_ip4_spec.ip4src);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tSrc IP mask: 0x%x\n",
+ fsc->fs.m_u.raw_ip4_spec.ip4src);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tDest IP addr: 0x%x\n",
+ fsc->fs.h_u.raw_ip4_spec.ip4dst);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tDest IP mask: 0x%x\n",
+ fsc->fs.m_u.raw_ip4_spec.ip4dst);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ case IPV4_FLOW:
+ sprintf(p, "\tSrc IP addr: 0x%x\n",
+ fsc->fs.h_u.usr_ip4_spec.ip4src);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tSrc IP mask: 0x%x\n",
+ fsc->fs.m_u.usr_ip4_spec.ip4src);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tDest IP addr: 0x%x\n",
+ fsc->fs.h_u.usr_ip4_spec.ip4dst);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tDest IP mask: 0x%x\n",
+ fsc->fs.m_u.usr_ip4_spec.ip4dst);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tL4 bytes: 0x%x, mask: 0x%x\n",
+ fsc->fs.h_u.usr_ip4_spec.l4_4_bytes,
+ fsc->fs.m_u.usr_ip4_spec.l4_4_bytes);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tTOS: %d, mask: 0x%x\n",
+ fsc->fs.h_u.usr_ip4_spec.tos,
+ fsc->fs.m_u.usr_ip4_spec.tos);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tIP Version: %d, mask: 0x%x\n",
+ fsc->fs.h_u.usr_ip4_spec.ip_ver,
+ fsc->fs.m_u.usr_ip4_spec.ip_ver);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tProtocol: %d, mask: 0x%x\n",
+ fsc->fs.h_u.usr_ip4_spec.proto,
+ fsc->fs.m_u.usr_ip4_spec.proto);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ break;
+ };
+ sprintf(p, "\tVLAN: %d, mask: 0x%x\n",
+ fsc->fs.vlan_tag, fsc->fs.vlan_tag_mask);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tUser-defined: 0x%Lx\n", fsc->fs.data);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ sprintf(p, "\tUser-defined mask: 0x%Lx\n", fsc->fs.data_mask);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+ if (fsc->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP)
+ sprintf(p, "\tAction: Drop\n");
+ else
+ sprintf(p, "\tAction: Direct to queue %d\n",
+ fsc->fs.action);
+ p += ETH_GSTRING_LEN;
+ num_strings++;
+unknown_filter:
+ i++;
+ }
+copy:
+ /* indicate to userspace how many strings we actually have */
+ gstrings.len = num_strings;
+ ret = -EFAULT;
+ if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
+ goto out;
+ useraddr += sizeof(gstrings);
+ if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
+ goto out;
+ ret = 0;
+
+out:
+ kfree(data);
+ return ret;
+}
+
static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
{
struct ethtool_regs regs;
@@ -313,6 +631,9 @@ static int ethtool_reset(struct net_device *dev, char __user *useraddr)
if (copy_from_user(&reset, useraddr, sizeof(reset)))
return -EFAULT;
+ /* Clear ethtool n-tuple list */
+ ethtool_ntuple_flush(dev);
+
ret = dev->ethtool_ops->reset(dev, &reset.data);
if (ret)
return ret;
@@ -1112,6 +1433,12 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
case ETHTOOL_RESET:
rc = ethtool_reset(dev, useraddr);
break;
+ case ETHTOOL_SRXNTUPLE:
+ rc = ethtool_set_rx_ntuple(dev, useraddr);
+ break;
+ case ETHTOOL_GRXNTUPLE:
+ rc = ethtool_get_rx_ntuple(dev, useraddr);
+ break;
default:
rc = -EOPNOTSUPP;
}
generated by cgit v0.10.2 at 2024-11-07 07:41:16 (GMT)