From cde9070d9970eef1f7ec2360586c802a16230ad8 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:50 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux driver
---
kernel/net/batman-adv/netlink.c | 1195 +++++++++++++++++++++++++++++++++++++++++++++++++++--------
1 files changed, 1,023 insertions(+), 172 deletions(-)
diff --git a/kernel/net/batman-adv/netlink.c b/kernel/net/batman-adv/netlink.c
index c328209..931bc3b 100644
--- a/kernel/net/batman-adv/netlink.c
+++ b/kernel/net/batman-adv/netlink.c
@@ -1,43 +1,37 @@
// SPDX-License-Identifier: GPL-2.0
-/* Copyright (C) 2016-2018 B.A.T.M.A.N. contributors:
+/* Copyright (C) 2016-2020 B.A.T.M.A.N. contributors:
*
* Matthias Schiffer
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "netlink.h"
#include "main.h"
#include <linux/atomic.h>
+#include <linux/bitops.h>
+#include <linux/bug.h>
#include <linux/byteorder/generic.h>
#include <linux/cache.h>
+#include <linux/err.h>
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/genetlink.h>
#include <linux/gfp.h>
#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/limits.h>
+#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/netlink.h>
#include <linux/printk.h>
-#include <linux/rculist.h>
-#include <linux/rcupdate.h>
+#include <linux/rtnetlink.h>
#include <linux/skbuff.h>
#include <linux/stddef.h>
#include <linux/types.h>
#include <net/genetlink.h>
+#include <net/net_namespace.h>
#include <net/netlink.h>
#include <net/sock.h>
#include <uapi/linux/batadv_packet.h>
@@ -47,8 +41,11 @@
#include "bridge_loop_avoidance.h"
#include "distributed-arp-table.h"
#include "gateway_client.h"
+#include "gateway_common.h"
#include "hard-interface.h"
+#include "log.h"
#include "multicast.h"
+#include "network-coding.h"
#include "originator.h"
#include "soft-interface.h"
#include "tp_meter.h"
@@ -58,10 +55,38 @@
/* multicast groups */
enum batadv_netlink_multicast_groups {
+ BATADV_NL_MCGRP_CONFIG,
BATADV_NL_MCGRP_TPMETER,
};
+/**
+ * enum batadv_genl_ops_flags - flags for genl_ops's internal_flags
+ */
+enum batadv_genl_ops_flags {
+ /**
+ * @BATADV_FLAG_NEED_MESH: request requires valid soft interface in
+ * attribute BATADV_ATTR_MESH_IFINDEX and expects a pointer to it to be
+ * saved in info->user_ptr[0]
+ */
+ BATADV_FLAG_NEED_MESH = BIT(0),
+
+ /**
+ * @BATADV_FLAG_NEED_HARDIF: request requires valid hard interface in
+ * attribute BATADV_ATTR_HARD_IFINDEX and expects a pointer to it to be
+ * saved in info->user_ptr[1]
+ */
+ BATADV_FLAG_NEED_HARDIF = BIT(1),
+
+ /**
+ * @BATADV_FLAG_NEED_VLAN: request requires valid vlan in
+ * attribute BATADV_ATTR_VLANID and expects a pointer to it to be
+ * saved in info->user_ptr[1]
+ */
+ BATADV_FLAG_NEED_VLAN = BIT(2),
+};
+
static const struct genl_multicast_group batadv_netlink_mcgrps[] = {
+ [BATADV_NL_MCGRP_CONFIG] = { .name = BATADV_NL_MCAST_GROUP_CONFIG },
[BATADV_NL_MCGRP_TPMETER] = { .name = BATADV_NL_MCAST_GROUP_TPMETER },
};
@@ -104,6 +129,27 @@
[BATADV_ATTR_DAT_CACHE_VID] = { .type = NLA_U16 },
[BATADV_ATTR_MCAST_FLAGS] = { .type = NLA_U32 },
[BATADV_ATTR_MCAST_FLAGS_PRIV] = { .type = NLA_U32 },
+ [BATADV_ATTR_VLANID] = { .type = NLA_U16 },
+ [BATADV_ATTR_AGGREGATED_OGMS_ENABLED] = { .type = NLA_U8 },
+ [BATADV_ATTR_AP_ISOLATION_ENABLED] = { .type = NLA_U8 },
+ [BATADV_ATTR_ISOLATION_MARK] = { .type = NLA_U32 },
+ [BATADV_ATTR_ISOLATION_MASK] = { .type = NLA_U32 },
+ [BATADV_ATTR_BONDING_ENABLED] = { .type = NLA_U8 },
+ [BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED] = { .type = NLA_U8 },
+ [BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED] = { .type = NLA_U8 },
+ [BATADV_ATTR_FRAGMENTATION_ENABLED] = { .type = NLA_U8 },
+ [BATADV_ATTR_GW_BANDWIDTH_DOWN] = { .type = NLA_U32 },
+ [BATADV_ATTR_GW_BANDWIDTH_UP] = { .type = NLA_U32 },
+ [BATADV_ATTR_GW_MODE] = { .type = NLA_U8 },
+ [BATADV_ATTR_GW_SEL_CLASS] = { .type = NLA_U32 },
+ [BATADV_ATTR_HOP_PENALTY] = { .type = NLA_U8 },
+ [BATADV_ATTR_LOG_LEVEL] = { .type = NLA_U32 },
+ [BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED] = { .type = NLA_U8 },
+ [BATADV_ATTR_MULTICAST_FANOUT] = { .type = NLA_U32 },
+ [BATADV_ATTR_NETWORK_CODING_ENABLED] = { .type = NLA_U8 },
+ [BATADV_ATTR_ORIG_INTERVAL] = { .type = NLA_U32 },
+ [BATADV_ATTR_ELP_INTERVAL] = { .type = NLA_U32 },
+ [BATADV_ATTR_THROUGHPUT_OVERRIDE] = { .type = NLA_U32 },
};
/**
@@ -122,20 +168,75 @@
}
/**
- * batadv_netlink_mesh_info_put() - fill in generic information about mesh
- * interface
- * @msg: netlink message to be sent back
- * @soft_iface: interface for which the data should be taken
+ * batadv_netlink_mesh_fill_ap_isolation() - Add ap_isolation softif attribute
+ * @msg: Netlink message to dump into
+ * @bat_priv: the bat priv with all the soft interface information
*
- * Return: 0 on success, < 0 on error
+ * Return: 0 on success or negative error number in case of failure
*/
-static int
-batadv_netlink_mesh_info_put(struct sk_buff *msg, struct net_device *soft_iface)
+static int batadv_netlink_mesh_fill_ap_isolation(struct sk_buff *msg,
+ struct batadv_priv *bat_priv)
{
- struct batadv_priv *bat_priv = netdev_priv(soft_iface);
+ struct batadv_softif_vlan *vlan;
+ u8 ap_isolation;
+
+ vlan = batadv_softif_vlan_get(bat_priv, BATADV_NO_FLAGS);
+ if (!vlan)
+ return 0;
+
+ ap_isolation = atomic_read(&vlan->ap_isolation);
+ batadv_softif_vlan_put(vlan);
+
+ return nla_put_u8(msg, BATADV_ATTR_AP_ISOLATION_ENABLED,
+ !!ap_isolation);
+}
+
+/**
+ * batadv_option_set_ap_isolation() - Set ap_isolation from genl msg
+ * @attr: parsed BATADV_ATTR_AP_ISOLATION_ENABLED attribute
+ * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_netlink_set_mesh_ap_isolation(struct nlattr *attr,
+ struct batadv_priv *bat_priv)
+{
+ struct batadv_softif_vlan *vlan;
+
+ vlan = batadv_softif_vlan_get(bat_priv, BATADV_NO_FLAGS);
+ if (!vlan)
+ return -ENOENT;
+
+ atomic_set(&vlan->ap_isolation, !!nla_get_u8(attr));
+ batadv_softif_vlan_put(vlan);
+
+ return 0;
+}
+
+/**
+ * batadv_netlink_mesh_fill() - Fill message with mesh attributes
+ * @msg: Netlink message to dump into
+ * @bat_priv: the bat priv with all the soft interface information
+ * @cmd: type of message to generate
+ * @portid: Port making netlink request
+ * @seq: sequence number for message
+ * @flags: Additional flags for message
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_netlink_mesh_fill(struct sk_buff *msg,
+ struct batadv_priv *bat_priv,
+ enum batadv_nl_commands cmd,
+ u32 portid, u32 seq, int flags)
+{
+ struct net_device *soft_iface = bat_priv->soft_iface;
struct batadv_hard_iface *primary_if = NULL;
struct net_device *hard_iface;
- int ret = -ENOBUFS;
+ void *hdr;
+
+ hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, flags, cmd);
+ if (!hdr)
+ return -ENOBUFS;
if (nla_put_string(msg, BATADV_ATTR_VERSION, BATADV_SOURCE_VERSION) ||
nla_put_string(msg, BATADV_ATTR_ALGO_NAME,
@@ -146,16 +247,16 @@
soft_iface->dev_addr) ||
nla_put_u8(msg, BATADV_ATTR_TT_TTVN,
(u8)atomic_read(&bat_priv->tt.vn)))
- goto out;
+ goto nla_put_failure;
#ifdef CONFIG_BATMAN_ADV_BLA
if (nla_put_u16(msg, BATADV_ATTR_BLA_CRC,
ntohs(bat_priv->bla.claim_dest.group)))
- goto out;
+ goto nla_put_failure;
#endif
if (batadv_mcast_mesh_info_put(msg, bat_priv))
- goto out;
+ goto nla_put_failure;
primary_if = batadv_primary_if_get_selected(bat_priv);
if (primary_if && primary_if->if_status == BATADV_IF_ACTIVE) {
@@ -167,77 +268,358 @@
hard_iface->name) ||
nla_put(msg, BATADV_ATTR_HARD_ADDRESS, ETH_ALEN,
hard_iface->dev_addr))
- goto out;
+ goto nla_put_failure;
}
- ret = 0;
+ if (nla_put_u8(msg, BATADV_ATTR_AGGREGATED_OGMS_ENABLED,
+ !!atomic_read(&bat_priv->aggregated_ogms)))
+ goto nla_put_failure;
- out:
+ if (batadv_netlink_mesh_fill_ap_isolation(msg, bat_priv))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, BATADV_ATTR_ISOLATION_MARK,
+ bat_priv->isolation_mark))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, BATADV_ATTR_ISOLATION_MASK,
+ bat_priv->isolation_mark_mask))
+ goto nla_put_failure;
+
+ if (nla_put_u8(msg, BATADV_ATTR_BONDING_ENABLED,
+ !!atomic_read(&bat_priv->bonding)))
+ goto nla_put_failure;
+
+#ifdef CONFIG_BATMAN_ADV_BLA
+ if (nla_put_u8(msg, BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED,
+ !!atomic_read(&bat_priv->bridge_loop_avoidance)))
+ goto nla_put_failure;
+#endif /* CONFIG_BATMAN_ADV_BLA */
+
+#ifdef CONFIG_BATMAN_ADV_DAT
+ if (nla_put_u8(msg, BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED,
+ !!atomic_read(&bat_priv->distributed_arp_table)))
+ goto nla_put_failure;
+#endif /* CONFIG_BATMAN_ADV_DAT */
+
+ if (nla_put_u8(msg, BATADV_ATTR_FRAGMENTATION_ENABLED,
+ !!atomic_read(&bat_priv->fragmentation)))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, BATADV_ATTR_GW_BANDWIDTH_DOWN,
+ atomic_read(&bat_priv->gw.bandwidth_down)))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, BATADV_ATTR_GW_BANDWIDTH_UP,
+ atomic_read(&bat_priv->gw.bandwidth_up)))
+ goto nla_put_failure;
+
+ if (nla_put_u8(msg, BATADV_ATTR_GW_MODE,
+ atomic_read(&bat_priv->gw.mode)))
+ goto nla_put_failure;
+
+ if (bat_priv->algo_ops->gw.get_best_gw_node &&
+ bat_priv->algo_ops->gw.is_eligible) {
+ /* GW selection class is not available if the routing algorithm
+ * in use does not implement the GW API
+ */
+ if (nla_put_u32(msg, BATADV_ATTR_GW_SEL_CLASS,
+ atomic_read(&bat_priv->gw.sel_class)))
+ goto nla_put_failure;
+ }
+
+ if (nla_put_u8(msg, BATADV_ATTR_HOP_PENALTY,
+ atomic_read(&bat_priv->hop_penalty)))
+ goto nla_put_failure;
+
+#ifdef CONFIG_BATMAN_ADV_DEBUG
+ if (nla_put_u32(msg, BATADV_ATTR_LOG_LEVEL,
+ atomic_read(&bat_priv->log_level)))
+ goto nla_put_failure;
+#endif /* CONFIG_BATMAN_ADV_DEBUG */
+
+#ifdef CONFIG_BATMAN_ADV_MCAST
+ if (nla_put_u8(msg, BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED,
+ !atomic_read(&bat_priv->multicast_mode)))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, BATADV_ATTR_MULTICAST_FANOUT,
+ atomic_read(&bat_priv->multicast_fanout)))
+ goto nla_put_failure;
+#endif /* CONFIG_BATMAN_ADV_MCAST */
+
+#ifdef CONFIG_BATMAN_ADV_NC
+ if (nla_put_u8(msg, BATADV_ATTR_NETWORK_CODING_ENABLED,
+ !!atomic_read(&bat_priv->network_coding)))
+ goto nla_put_failure;
+#endif /* CONFIG_BATMAN_ADV_NC */
+
+ if (nla_put_u32(msg, BATADV_ATTR_ORIG_INTERVAL,
+ atomic_read(&bat_priv->orig_interval)))
+ goto nla_put_failure;
+
if (primary_if)
batadv_hardif_put(primary_if);
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ if (primary_if)
+ batadv_hardif_put(primary_if);
+
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+/**
+ * batadv_netlink_notify_mesh() - send softif attributes to listener
+ * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Return: 0 on success, < 0 on error
+ */
+int batadv_netlink_notify_mesh(struct batadv_priv *bat_priv)
+{
+ struct sk_buff *msg;
+ int ret;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ ret = batadv_netlink_mesh_fill(msg, bat_priv, BATADV_CMD_SET_MESH,
+ 0, 0, 0);
+ if (ret < 0) {
+ nlmsg_free(msg);
+ return ret;
+ }
+
+ genlmsg_multicast_netns(&batadv_netlink_family,
+ dev_net(bat_priv->soft_iface), msg, 0,
+ BATADV_NL_MCGRP_CONFIG, GFP_KERNEL);
+
+ return 0;
+}
+
+/**
+ * batadv_netlink_get_mesh() - Get softif attributes
+ * @skb: Netlink message with request data
+ * @info: receiver information
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_netlink_get_mesh(struct sk_buff *skb, struct genl_info *info)
+{
+ struct batadv_priv *bat_priv = info->user_ptr[0];
+ struct sk_buff *msg;
+ int ret;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ ret = batadv_netlink_mesh_fill(msg, bat_priv, BATADV_CMD_GET_MESH,
+ info->snd_portid, info->snd_seq, 0);
+ if (ret < 0) {
+ nlmsg_free(msg);
+ return ret;
+ }
+
+ ret = genlmsg_reply(msg, info);
return ret;
}
/**
- * batadv_netlink_get_mesh_info() - handle incoming BATADV_CMD_GET_MESH_INFO
- * netlink request
- * @skb: received netlink message
+ * batadv_netlink_set_mesh() - Set softif attributes
+ * @skb: Netlink message with request data
* @info: receiver information
*
- * Return: 0 on success, < 0 on error
+ * Return: 0 on success or negative error number in case of failure
*/
-static int
-batadv_netlink_get_mesh_info(struct sk_buff *skb, struct genl_info *info)
+static int batadv_netlink_set_mesh(struct sk_buff *skb, struct genl_info *info)
{
- struct net *net = genl_info_net(info);
- struct net_device *soft_iface;
- struct sk_buff *msg = NULL;
- void *msg_head;
- int ifindex;
- int ret;
+ struct batadv_priv *bat_priv = info->user_ptr[0];
+ struct nlattr *attr;
- if (!info->attrs[BATADV_ATTR_MESH_IFINDEX])
- return -EINVAL;
+ if (info->attrs[BATADV_ATTR_AGGREGATED_OGMS_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_AGGREGATED_OGMS_ENABLED];
- ifindex = nla_get_u32(info->attrs[BATADV_ATTR_MESH_IFINDEX]);
- if (!ifindex)
- return -EINVAL;
-
- soft_iface = dev_get_by_index(net, ifindex);
- if (!soft_iface || !batadv_softif_is_valid(soft_iface)) {
- ret = -ENODEV;
- goto out;
+ atomic_set(&bat_priv->aggregated_ogms, !!nla_get_u8(attr));
}
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg) {
- ret = -ENOMEM;
- goto out;
+ if (info->attrs[BATADV_ATTR_AP_ISOLATION_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_AP_ISOLATION_ENABLED];
+
+ batadv_netlink_set_mesh_ap_isolation(attr, bat_priv);
}
- msg_head = genlmsg_put(msg, info->snd_portid, info->snd_seq,
- &batadv_netlink_family, 0,
- BATADV_CMD_GET_MESH_INFO);
- if (!msg_head) {
- ret = -ENOBUFS;
- goto out;
+ if (info->attrs[BATADV_ATTR_ISOLATION_MARK]) {
+ attr = info->attrs[BATADV_ATTR_ISOLATION_MARK];
+
+ bat_priv->isolation_mark = nla_get_u32(attr);
}
- ret = batadv_netlink_mesh_info_put(msg, soft_iface);
+ if (info->attrs[BATADV_ATTR_ISOLATION_MASK]) {
+ attr = info->attrs[BATADV_ATTR_ISOLATION_MASK];
- out:
- if (soft_iface)
- dev_put(soft_iface);
-
- if (ret) {
- if (msg)
- nlmsg_free(msg);
- return ret;
+ bat_priv->isolation_mark_mask = nla_get_u32(attr);
}
- genlmsg_end(msg, msg_head);
- return genlmsg_reply(msg, info);
+ if (info->attrs[BATADV_ATTR_BONDING_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_BONDING_ENABLED];
+
+ atomic_set(&bat_priv->bonding, !!nla_get_u8(attr));
+ }
+
+#ifdef CONFIG_BATMAN_ADV_BLA
+ if (info->attrs[BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED];
+
+ atomic_set(&bat_priv->bridge_loop_avoidance,
+ !!nla_get_u8(attr));
+ batadv_bla_status_update(bat_priv->soft_iface);
+ }
+#endif /* CONFIG_BATMAN_ADV_BLA */
+
+#ifdef CONFIG_BATMAN_ADV_DAT
+ if (info->attrs[BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED];
+
+ atomic_set(&bat_priv->distributed_arp_table,
+ !!nla_get_u8(attr));
+ batadv_dat_status_update(bat_priv->soft_iface);
+ }
+#endif /* CONFIG_BATMAN_ADV_DAT */
+
+ if (info->attrs[BATADV_ATTR_FRAGMENTATION_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_FRAGMENTATION_ENABLED];
+
+ atomic_set(&bat_priv->fragmentation, !!nla_get_u8(attr));
+
+ rtnl_lock();
+ batadv_update_min_mtu(bat_priv->soft_iface);
+ rtnl_unlock();
+ }
+
+ if (info->attrs[BATADV_ATTR_GW_BANDWIDTH_DOWN]) {
+ attr = info->attrs[BATADV_ATTR_GW_BANDWIDTH_DOWN];
+
+ atomic_set(&bat_priv->gw.bandwidth_down, nla_get_u32(attr));
+ batadv_gw_tvlv_container_update(bat_priv);
+ }
+
+ if (info->attrs[BATADV_ATTR_GW_BANDWIDTH_UP]) {
+ attr = info->attrs[BATADV_ATTR_GW_BANDWIDTH_UP];
+
+ atomic_set(&bat_priv->gw.bandwidth_up, nla_get_u32(attr));
+ batadv_gw_tvlv_container_update(bat_priv);
+ }
+
+ if (info->attrs[BATADV_ATTR_GW_MODE]) {
+ u8 gw_mode;
+
+ attr = info->attrs[BATADV_ATTR_GW_MODE];
+ gw_mode = nla_get_u8(attr);
+
+ if (gw_mode <= BATADV_GW_MODE_SERVER) {
+ /* Invoking batadv_gw_reselect() is not enough to really
+ * de-select the current GW. It will only instruct the
+ * gateway client code to perform a re-election the next
+ * time that this is needed.
+ *
+ * When gw client mode is being switched off the current
+ * GW must be de-selected explicitly otherwise no GW_ADD
+ * uevent is thrown on client mode re-activation. This
+ * is operation is performed in
+ * batadv_gw_check_client_stop().
+ */
+ batadv_gw_reselect(bat_priv);
+
+ /* always call batadv_gw_check_client_stop() before
+ * changing the gateway state
+ */
+ batadv_gw_check_client_stop(bat_priv);
+ atomic_set(&bat_priv->gw.mode, gw_mode);
+ batadv_gw_tvlv_container_update(bat_priv);
+ }
+ }
+
+ if (info->attrs[BATADV_ATTR_GW_SEL_CLASS] &&
+ bat_priv->algo_ops->gw.get_best_gw_node &&
+ bat_priv->algo_ops->gw.is_eligible) {
+ /* setting the GW selection class is allowed only if the routing
+ * algorithm in use implements the GW API
+ */
+
+ u32 sel_class_max = 0xffffffffu;
+ u32 sel_class;
+
+ attr = info->attrs[BATADV_ATTR_GW_SEL_CLASS];
+ sel_class = nla_get_u32(attr);
+
+ if (!bat_priv->algo_ops->gw.store_sel_class)
+ sel_class_max = BATADV_TQ_MAX_VALUE;
+
+ if (sel_class >= 1 && sel_class <= sel_class_max) {
+ atomic_set(&bat_priv->gw.sel_class, sel_class);
+ batadv_gw_reselect(bat_priv);
+ }
+ }
+
+ if (info->attrs[BATADV_ATTR_HOP_PENALTY]) {
+ attr = info->attrs[BATADV_ATTR_HOP_PENALTY];
+
+ atomic_set(&bat_priv->hop_penalty, nla_get_u8(attr));
+ }
+
+#ifdef CONFIG_BATMAN_ADV_DEBUG
+ if (info->attrs[BATADV_ATTR_LOG_LEVEL]) {
+ attr = info->attrs[BATADV_ATTR_LOG_LEVEL];
+
+ atomic_set(&bat_priv->log_level,
+ nla_get_u32(attr) & BATADV_DBG_ALL);
+ }
+#endif /* CONFIG_BATMAN_ADV_DEBUG */
+
+#ifdef CONFIG_BATMAN_ADV_MCAST
+ if (info->attrs[BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED];
+
+ atomic_set(&bat_priv->multicast_mode, !nla_get_u8(attr));
+ }
+
+ if (info->attrs[BATADV_ATTR_MULTICAST_FANOUT]) {
+ attr = info->attrs[BATADV_ATTR_MULTICAST_FANOUT];
+
+ atomic_set(&bat_priv->multicast_fanout, nla_get_u32(attr));
+ }
+#endif /* CONFIG_BATMAN_ADV_MCAST */
+
+#ifdef CONFIG_BATMAN_ADV_NC
+ if (info->attrs[BATADV_ATTR_NETWORK_CODING_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_NETWORK_CODING_ENABLED];
+
+ atomic_set(&bat_priv->network_coding, !!nla_get_u8(attr));
+ batadv_nc_status_update(bat_priv->soft_iface);
+ }
+#endif /* CONFIG_BATMAN_ADV_NC */
+
+ if (info->attrs[BATADV_ATTR_ORIG_INTERVAL]) {
+ u32 orig_interval;
+
+ attr = info->attrs[BATADV_ATTR_ORIG_INTERVAL];
+ orig_interval = nla_get_u32(attr);
+
+ orig_interval = min_t(u32, orig_interval, INT_MAX);
+ orig_interval = max_t(u32, orig_interval, 2 * BATADV_JITTER);
+
+ atomic_set(&bat_priv->orig_interval, orig_interval);
+ }
+
+ batadv_netlink_notify_mesh(bat_priv);
+
+ return 0;
}
/**
@@ -261,7 +643,7 @@
* @bat_priv: the bat priv with all the soft interface information
* @dst: destination of tp_meter session
* @result: reason for tp meter session stop
- * @test_time: total time ot the tp_meter session
+ * @test_time: total time of the tp_meter session
* @total_bytes: bytes acked to the receiver
* @cookie: cookie of tp_meter session
*
@@ -329,19 +711,13 @@
static int
batadv_netlink_tp_meter_start(struct sk_buff *skb, struct genl_info *info)
{
- struct net *net = genl_info_net(info);
- struct net_device *soft_iface;
- struct batadv_priv *bat_priv;
+ struct batadv_priv *bat_priv = info->user_ptr[0];
struct sk_buff *msg = NULL;
u32 test_length;
void *msg_head;
- int ifindex;
u32 cookie;
u8 *dst;
int ret;
-
- if (!info->attrs[BATADV_ATTR_MESH_IFINDEX])
- return -EINVAL;
if (!info->attrs[BATADV_ATTR_ORIG_ADDRESS])
return -EINVAL;
@@ -349,19 +725,9 @@
if (!info->attrs[BATADV_ATTR_TPMETER_TEST_TIME])
return -EINVAL;
- ifindex = nla_get_u32(info->attrs[BATADV_ATTR_MESH_IFINDEX]);
- if (!ifindex)
- return -EINVAL;
-
dst = nla_data(info->attrs[BATADV_ATTR_ORIG_ADDRESS]);
test_length = nla_get_u32(info->attrs[BATADV_ATTR_TPMETER_TEST_TIME]);
-
- soft_iface = dev_get_by_index(net, ifindex);
- if (!soft_iface || !batadv_softif_is_valid(soft_iface)) {
- ret = -ENODEV;
- goto out;
- }
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg) {
@@ -377,15 +743,11 @@
goto out;
}
- bat_priv = netdev_priv(soft_iface);
batadv_tp_start(bat_priv, dst, test_length, &cookie);
ret = batadv_netlink_tp_meter_put(msg, cookie);
out:
- if (soft_iface)
- dev_put(soft_iface);
-
if (ret) {
if (msg)
nlmsg_free(msg);
@@ -406,61 +768,53 @@
static int
batadv_netlink_tp_meter_cancel(struct sk_buff *skb, struct genl_info *info)
{
- struct net *net = genl_info_net(info);
- struct net_device *soft_iface;
- struct batadv_priv *bat_priv;
- int ifindex;
+ struct batadv_priv *bat_priv = info->user_ptr[0];
u8 *dst;
int ret = 0;
-
- if (!info->attrs[BATADV_ATTR_MESH_IFINDEX])
- return -EINVAL;
if (!info->attrs[BATADV_ATTR_ORIG_ADDRESS])
return -EINVAL;
- ifindex = nla_get_u32(info->attrs[BATADV_ATTR_MESH_IFINDEX]);
- if (!ifindex)
- return -EINVAL;
-
dst = nla_data(info->attrs[BATADV_ATTR_ORIG_ADDRESS]);
- soft_iface = dev_get_by_index(net, ifindex);
- if (!soft_iface || !batadv_softif_is_valid(soft_iface)) {
- ret = -ENODEV;
- goto out;
- }
-
- bat_priv = netdev_priv(soft_iface);
batadv_tp_stop(bat_priv, dst, BATADV_TP_REASON_CANCEL);
-
-out:
- if (soft_iface)
- dev_put(soft_iface);
return ret;
}
/**
- * batadv_netlink_dump_hardif_entry() - Dump one hard interface into a message
+ * batadv_netlink_hardif_fill() - Fill message with hardif attributes
* @msg: Netlink message to dump into
+ * @bat_priv: the bat priv with all the soft interface information
+ * @hard_iface: hard interface which was modified
+ * @cmd: type of message to generate
* @portid: Port making netlink request
- * @seq: Sequence number of netlink message
- * @hard_iface: Hard interface to dump
+ * @seq: sequence number for message
+ * @flags: Additional flags for message
+ * @cb: Control block containing additional options
*
- * Return: error code, or 0 on success
+ * Return: 0 on success or negative error number in case of failure
*/
-static int
-batadv_netlink_dump_hardif_entry(struct sk_buff *msg, u32 portid, u32 seq,
- struct batadv_hard_iface *hard_iface)
+static int batadv_netlink_hardif_fill(struct sk_buff *msg,
+ struct batadv_priv *bat_priv,
+ struct batadv_hard_iface *hard_iface,
+ enum batadv_nl_commands cmd,
+ u32 portid, u32 seq, int flags,
+ struct netlink_callback *cb)
{
struct net_device *net_dev = hard_iface->net_dev;
void *hdr;
- hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, NLM_F_MULTI,
- BATADV_CMD_GET_HARDIFS);
+ hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, flags, cmd);
if (!hdr)
- return -EMSGSIZE;
+ return -ENOBUFS;
+
+ if (cb)
+ genl_dump_check_consistent(cb, hdr);
+
+ if (nla_put_u32(msg, BATADV_ATTR_MESH_IFINDEX,
+ bat_priv->soft_iface->ifindex))
+ goto nla_put_failure;
if (nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX,
net_dev->ifindex) ||
@@ -475,30 +829,149 @@
goto nla_put_failure;
}
+ if (nla_put_u8(msg, BATADV_ATTR_HOP_PENALTY,
+ atomic_read(&hard_iface->hop_penalty)))
+ goto nla_put_failure;
+
+#ifdef CONFIG_BATMAN_ADV_BATMAN_V
+ if (nla_put_u32(msg, BATADV_ATTR_ELP_INTERVAL,
+ atomic_read(&hard_iface->bat_v.elp_interval)))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, BATADV_ATTR_THROUGHPUT_OVERRIDE,
+ atomic_read(&hard_iface->bat_v.throughput_override)))
+ goto nla_put_failure;
+#endif /* CONFIG_BATMAN_ADV_BATMAN_V */
+
genlmsg_end(msg, hdr);
return 0;
- nla_put_failure:
+nla_put_failure:
genlmsg_cancel(msg, hdr);
return -EMSGSIZE;
}
/**
- * batadv_netlink_dump_hardifs() - Dump all hard interface into a messages
+ * batadv_netlink_notify_hardif() - send hardif attributes to listener
+ * @bat_priv: the bat priv with all the soft interface information
+ * @hard_iface: hard interface which was modified
+ *
+ * Return: 0 on success, < 0 on error
+ */
+int batadv_netlink_notify_hardif(struct batadv_priv *bat_priv,
+ struct batadv_hard_iface *hard_iface)
+{
+ struct sk_buff *msg;
+ int ret;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ ret = batadv_netlink_hardif_fill(msg, bat_priv, hard_iface,
+ BATADV_CMD_SET_HARDIF, 0, 0, 0, NULL);
+ if (ret < 0) {
+ nlmsg_free(msg);
+ return ret;
+ }
+
+ genlmsg_multicast_netns(&batadv_netlink_family,
+ dev_net(bat_priv->soft_iface), msg, 0,
+ BATADV_NL_MCGRP_CONFIG, GFP_KERNEL);
+
+ return 0;
+}
+
+/**
+ * batadv_netlink_get_hardif() - Get hardif attributes
+ * @skb: Netlink message with request data
+ * @info: receiver information
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_netlink_get_hardif(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct batadv_hard_iface *hard_iface = info->user_ptr[1];
+ struct batadv_priv *bat_priv = info->user_ptr[0];
+ struct sk_buff *msg;
+ int ret;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ ret = batadv_netlink_hardif_fill(msg, bat_priv, hard_iface,
+ BATADV_CMD_GET_HARDIF,
+ info->snd_portid, info->snd_seq, 0,
+ NULL);
+ if (ret < 0) {
+ nlmsg_free(msg);
+ return ret;
+ }
+
+ ret = genlmsg_reply(msg, info);
+
+ return ret;
+}
+
+/**
+ * batadv_netlink_set_hardif() - Set hardif attributes
+ * @skb: Netlink message with request data
+ * @info: receiver information
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_netlink_set_hardif(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct batadv_hard_iface *hard_iface = info->user_ptr[1];
+ struct batadv_priv *bat_priv = info->user_ptr[0];
+ struct nlattr *attr;
+
+ if (info->attrs[BATADV_ATTR_HOP_PENALTY]) {
+ attr = info->attrs[BATADV_ATTR_HOP_PENALTY];
+
+ atomic_set(&hard_iface->hop_penalty, nla_get_u8(attr));
+ }
+
+#ifdef CONFIG_BATMAN_ADV_BATMAN_V
+
+ if (info->attrs[BATADV_ATTR_ELP_INTERVAL]) {
+ attr = info->attrs[BATADV_ATTR_ELP_INTERVAL];
+
+ atomic_set(&hard_iface->bat_v.elp_interval, nla_get_u32(attr));
+ }
+
+ if (info->attrs[BATADV_ATTR_THROUGHPUT_OVERRIDE]) {
+ attr = info->attrs[BATADV_ATTR_THROUGHPUT_OVERRIDE];
+
+ atomic_set(&hard_iface->bat_v.throughput_override,
+ nla_get_u32(attr));
+ }
+#endif /* CONFIG_BATMAN_ADV_BATMAN_V */
+
+ batadv_netlink_notify_hardif(bat_priv, hard_iface);
+
+ return 0;
+}
+
+/**
+ * batadv_netlink_dump_hardif() - Dump all hard interface into a messages
* @msg: Netlink message to dump into
* @cb: Parameters from query
*
* Return: error code, or length of reply message on success
*/
static int
-batadv_netlink_dump_hardifs(struct sk_buff *msg, struct netlink_callback *cb)
+batadv_netlink_dump_hardif(struct sk_buff *msg, struct netlink_callback *cb)
{
struct net *net = sock_net(cb->skb->sk);
struct net_device *soft_iface;
struct batadv_hard_iface *hard_iface;
+ struct batadv_priv *bat_priv;
int ifindex;
int portid = NETLINK_CB(cb->skb).portid;
- int seq = cb->nlh->nlmsg_seq;
int skip = cb->args[0];
int i = 0;
@@ -516,23 +989,28 @@
return -ENODEV;
}
- rcu_read_lock();
+ bat_priv = netdev_priv(soft_iface);
- list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
+ rtnl_lock();
+ cb->seq = batadv_hardif_generation << 1 | 1;
+
+ list_for_each_entry(hard_iface, &batadv_hardif_list, list) {
if (hard_iface->soft_iface != soft_iface)
continue;
if (i++ < skip)
continue;
- if (batadv_netlink_dump_hardif_entry(msg, portid, seq,
- hard_iface)) {
+ if (batadv_netlink_hardif_fill(msg, bat_priv, hard_iface,
+ BATADV_CMD_GET_HARDIF,
+ portid, cb->nlh->nlmsg_seq,
+ NLM_F_MULTI, cb)) {
i--;
break;
}
}
- rcu_read_unlock();
+ rtnl_unlock();
dev_put(soft_iface);
@@ -541,92 +1019,462 @@
return msg->len;
}
-static const struct genl_ops batadv_netlink_ops[] = {
+/**
+ * batadv_netlink_vlan_fill() - Fill message with vlan attributes
+ * @msg: Netlink message to dump into
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vlan: vlan which was modified
+ * @cmd: type of message to generate
+ * @portid: Port making netlink request
+ * @seq: sequence number for message
+ * @flags: Additional flags for message
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_netlink_vlan_fill(struct sk_buff *msg,
+ struct batadv_priv *bat_priv,
+ struct batadv_softif_vlan *vlan,
+ enum batadv_nl_commands cmd,
+ u32 portid, u32 seq, int flags)
+{
+ void *hdr;
+
+ hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, flags, cmd);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put_u32(msg, BATADV_ATTR_MESH_IFINDEX,
+ bat_priv->soft_iface->ifindex))
+ goto nla_put_failure;
+
+ if (nla_put_u32(msg, BATADV_ATTR_VLANID, vlan->vid & VLAN_VID_MASK))
+ goto nla_put_failure;
+
+ if (nla_put_u8(msg, BATADV_ATTR_AP_ISOLATION_ENABLED,
+ !!atomic_read(&vlan->ap_isolation)))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+/**
+ * batadv_netlink_notify_vlan() - send vlan attributes to listener
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vlan: vlan which was modified
+ *
+ * Return: 0 on success, < 0 on error
+ */
+int batadv_netlink_notify_vlan(struct batadv_priv *bat_priv,
+ struct batadv_softif_vlan *vlan)
+{
+ struct sk_buff *msg;
+ int ret;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ ret = batadv_netlink_vlan_fill(msg, bat_priv, vlan,
+ BATADV_CMD_SET_VLAN, 0, 0, 0);
+ if (ret < 0) {
+ nlmsg_free(msg);
+ return ret;
+ }
+
+ genlmsg_multicast_netns(&batadv_netlink_family,
+ dev_net(bat_priv->soft_iface), msg, 0,
+ BATADV_NL_MCGRP_CONFIG, GFP_KERNEL);
+
+ return 0;
+}
+
+/**
+ * batadv_netlink_get_vlan() - Get vlan attributes
+ * @skb: Netlink message with request data
+ * @info: receiver information
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_netlink_get_vlan(struct sk_buff *skb, struct genl_info *info)
+{
+ struct batadv_softif_vlan *vlan = info->user_ptr[1];
+ struct batadv_priv *bat_priv = info->user_ptr[0];
+ struct sk_buff *msg;
+ int ret;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ ret = batadv_netlink_vlan_fill(msg, bat_priv, vlan, BATADV_CMD_GET_VLAN,
+ info->snd_portid, info->snd_seq, 0);
+ if (ret < 0) {
+ nlmsg_free(msg);
+ return ret;
+ }
+
+ ret = genlmsg_reply(msg, info);
+
+ return ret;
+}
+
+/**
+ * batadv_netlink_set_vlan() - Get vlan attributes
+ * @skb: Netlink message with request data
+ * @info: receiver information
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_netlink_set_vlan(struct sk_buff *skb, struct genl_info *info)
+{
+ struct batadv_softif_vlan *vlan = info->user_ptr[1];
+ struct batadv_priv *bat_priv = info->user_ptr[0];
+ struct nlattr *attr;
+
+ if (info->attrs[BATADV_ATTR_AP_ISOLATION_ENABLED]) {
+ attr = info->attrs[BATADV_ATTR_AP_ISOLATION_ENABLED];
+
+ atomic_set(&vlan->ap_isolation, !!nla_get_u8(attr));
+ }
+
+ batadv_netlink_notify_vlan(bat_priv, vlan);
+
+ return 0;
+}
+
+/**
+ * batadv_get_softif_from_info() - Retrieve soft interface from genl attributes
+ * @net: the applicable net namespace
+ * @info: receiver information
+ *
+ * Return: Pointer to soft interface (with increased refcnt) on success, error
+ * pointer on error
+ */
+static struct net_device *
+batadv_get_softif_from_info(struct net *net, struct genl_info *info)
+{
+ struct net_device *soft_iface;
+ int ifindex;
+
+ if (!info->attrs[BATADV_ATTR_MESH_IFINDEX])
+ return ERR_PTR(-EINVAL);
+
+ ifindex = nla_get_u32(info->attrs[BATADV_ATTR_MESH_IFINDEX]);
+
+ soft_iface = dev_get_by_index(net, ifindex);
+ if (!soft_iface)
+ return ERR_PTR(-ENODEV);
+
+ if (!batadv_softif_is_valid(soft_iface))
+ goto err_put_softif;
+
+ return soft_iface;
+
+err_put_softif:
+ dev_put(soft_iface);
+
+ return ERR_PTR(-EINVAL);
+}
+
+/**
+ * batadv_get_hardif_from_info() - Retrieve hardif from genl attributes
+ * @bat_priv: the bat priv with all the soft interface information
+ * @net: the applicable net namespace
+ * @info: receiver information
+ *
+ * Return: Pointer to hard interface (with increased refcnt) on success, error
+ * pointer on error
+ */
+static struct batadv_hard_iface *
+batadv_get_hardif_from_info(struct batadv_priv *bat_priv, struct net *net,
+ struct genl_info *info)
+{
+ struct batadv_hard_iface *hard_iface;
+ struct net_device *hard_dev;
+ unsigned int hardif_index;
+
+ if (!info->attrs[BATADV_ATTR_HARD_IFINDEX])
+ return ERR_PTR(-EINVAL);
+
+ hardif_index = nla_get_u32(info->attrs[BATADV_ATTR_HARD_IFINDEX]);
+
+ hard_dev = dev_get_by_index(net, hardif_index);
+ if (!hard_dev)
+ return ERR_PTR(-ENODEV);
+
+ hard_iface = batadv_hardif_get_by_netdev(hard_dev);
+ if (!hard_iface)
+ goto err_put_harddev;
+
+ if (hard_iface->soft_iface != bat_priv->soft_iface)
+ goto err_put_hardif;
+
+ /* hard_dev is referenced by hard_iface and not needed here */
+ dev_put(hard_dev);
+
+ return hard_iface;
+
+err_put_hardif:
+ batadv_hardif_put(hard_iface);
+err_put_harddev:
+ dev_put(hard_dev);
+
+ return ERR_PTR(-EINVAL);
+}
+
+/**
+ * batadv_get_vlan_from_info() - Retrieve vlan from genl attributes
+ * @bat_priv: the bat priv with all the soft interface information
+ * @net: the applicable net namespace
+ * @info: receiver information
+ *
+ * Return: Pointer to vlan on success (with increased refcnt), error pointer
+ * on error
+ */
+static struct batadv_softif_vlan *
+batadv_get_vlan_from_info(struct batadv_priv *bat_priv, struct net *net,
+ struct genl_info *info)
+{
+ struct batadv_softif_vlan *vlan;
+ u16 vid;
+
+ if (!info->attrs[BATADV_ATTR_VLANID])
+ return ERR_PTR(-EINVAL);
+
+ vid = nla_get_u16(info->attrs[BATADV_ATTR_VLANID]);
+
+ vlan = batadv_softif_vlan_get(bat_priv, vid | BATADV_VLAN_HAS_TAG);
+ if (!vlan)
+ return ERR_PTR(-ENOENT);
+
+ return vlan;
+}
+
+/**
+ * batadv_pre_doit() - Prepare batman-adv genl doit request
+ * @ops: requested netlink operation
+ * @skb: Netlink message with request data
+ * @info: receiver information
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct net *net = genl_info_net(info);
+ struct batadv_hard_iface *hard_iface;
+ struct batadv_priv *bat_priv = NULL;
+ struct batadv_softif_vlan *vlan;
+ struct net_device *soft_iface;
+ u8 user_ptr1_flags;
+ u8 mesh_dep_flags;
+ int ret;
+
+ user_ptr1_flags = BATADV_FLAG_NEED_HARDIF | BATADV_FLAG_NEED_VLAN;
+ if (WARN_ON(hweight8(ops->internal_flags & user_ptr1_flags) > 1))
+ return -EINVAL;
+
+ mesh_dep_flags = BATADV_FLAG_NEED_HARDIF | BATADV_FLAG_NEED_VLAN;
+ if (WARN_ON((ops->internal_flags & mesh_dep_flags) &&
+ (~ops->internal_flags & BATADV_FLAG_NEED_MESH)))
+ return -EINVAL;
+
+ if (ops->internal_flags & BATADV_FLAG_NEED_MESH) {
+ soft_iface = batadv_get_softif_from_info(net, info);
+ if (IS_ERR(soft_iface))
+ return PTR_ERR(soft_iface);
+
+ bat_priv = netdev_priv(soft_iface);
+ info->user_ptr[0] = bat_priv;
+ }
+
+ if (ops->internal_flags & BATADV_FLAG_NEED_HARDIF) {
+ hard_iface = batadv_get_hardif_from_info(bat_priv, net, info);
+ if (IS_ERR(hard_iface)) {
+ ret = PTR_ERR(hard_iface);
+ goto err_put_softif;
+ }
+
+ info->user_ptr[1] = hard_iface;
+ }
+
+ if (ops->internal_flags & BATADV_FLAG_NEED_VLAN) {
+ vlan = batadv_get_vlan_from_info(bat_priv, net, info);
+ if (IS_ERR(vlan)) {
+ ret = PTR_ERR(vlan);
+ goto err_put_softif;
+ }
+
+ info->user_ptr[1] = vlan;
+ }
+
+ return 0;
+
+err_put_softif:
+ if (bat_priv)
+ dev_put(bat_priv->soft_iface);
+
+ return ret;
+}
+
+/**
+ * batadv_post_doit() - End batman-adv genl doit request
+ * @ops: requested netlink operation
+ * @skb: Netlink message with request data
+ * @info: receiver information
+ */
+static void batadv_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct batadv_hard_iface *hard_iface;
+ struct batadv_softif_vlan *vlan;
+ struct batadv_priv *bat_priv;
+
+ if (ops->internal_flags & BATADV_FLAG_NEED_HARDIF &&
+ info->user_ptr[1]) {
+ hard_iface = info->user_ptr[1];
+
+ batadv_hardif_put(hard_iface);
+ }
+
+ if (ops->internal_flags & BATADV_FLAG_NEED_VLAN && info->user_ptr[1]) {
+ vlan = info->user_ptr[1];
+ batadv_softif_vlan_put(vlan);
+ }
+
+ if (ops->internal_flags & BATADV_FLAG_NEED_MESH && info->user_ptr[0]) {
+ bat_priv = info->user_ptr[0];
+ dev_put(bat_priv->soft_iface);
+ }
+}
+
+static const struct genl_small_ops batadv_netlink_ops[] = {
{
- .cmd = BATADV_CMD_GET_MESH_INFO,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
- .doit = batadv_netlink_get_mesh_info,
+ .cmd = BATADV_CMD_GET_MESH,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ /* can be retrieved by unprivileged users */
+ .doit = batadv_netlink_get_mesh,
+ .internal_flags = BATADV_FLAG_NEED_MESH,
},
{
.cmd = BATADV_CMD_TP_METER,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.doit = batadv_netlink_tp_meter_start,
+ .internal_flags = BATADV_FLAG_NEED_MESH,
},
{
.cmd = BATADV_CMD_TP_METER_CANCEL,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.doit = batadv_netlink_tp_meter_cancel,
+ .internal_flags = BATADV_FLAG_NEED_MESH,
},
{
.cmd = BATADV_CMD_GET_ROUTING_ALGOS,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_algo_dump,
},
{
- .cmd = BATADV_CMD_GET_HARDIFS,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
- .dumpit = batadv_netlink_dump_hardifs,
+ .cmd = BATADV_CMD_GET_HARDIF,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ /* can be retrieved by unprivileged users */
+ .dumpit = batadv_netlink_dump_hardif,
+ .doit = batadv_netlink_get_hardif,
+ .internal_flags = BATADV_FLAG_NEED_MESH |
+ BATADV_FLAG_NEED_HARDIF,
},
{
.cmd = BATADV_CMD_GET_TRANSTABLE_LOCAL,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_tt_local_dump,
},
{
.cmd = BATADV_CMD_GET_TRANSTABLE_GLOBAL,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_tt_global_dump,
},
{
.cmd = BATADV_CMD_GET_ORIGINATORS,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_orig_dump,
},
{
.cmd = BATADV_CMD_GET_NEIGHBORS,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_hardif_neigh_dump,
},
{
.cmd = BATADV_CMD_GET_GATEWAYS,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_gw_dump,
},
{
.cmd = BATADV_CMD_GET_BLA_CLAIM,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_bla_claim_dump,
},
{
.cmd = BATADV_CMD_GET_BLA_BACKBONE,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_bla_backbone_dump,
},
{
.cmd = BATADV_CMD_GET_DAT_CACHE,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_dat_cache_dump,
},
{
.cmd = BATADV_CMD_GET_MCAST_FLAGS,
- .flags = GENL_ADMIN_PERM,
- .policy = batadv_netlink_policy,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
.dumpit = batadv_mcast_flags_dump,
},
-
+ {
+ .cmd = BATADV_CMD_SET_MESH,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
+ .doit = batadv_netlink_set_mesh,
+ .internal_flags = BATADV_FLAG_NEED_MESH,
+ },
+ {
+ .cmd = BATADV_CMD_SET_HARDIF,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
+ .doit = batadv_netlink_set_hardif,
+ .internal_flags = BATADV_FLAG_NEED_MESH |
+ BATADV_FLAG_NEED_HARDIF,
+ },
+ {
+ .cmd = BATADV_CMD_GET_VLAN,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ /* can be retrieved by unprivileged users */
+ .doit = batadv_netlink_get_vlan,
+ .internal_flags = BATADV_FLAG_NEED_MESH |
+ BATADV_FLAG_NEED_VLAN,
+ },
+ {
+ .cmd = BATADV_CMD_SET_VLAN,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .flags = GENL_UNS_ADMIN_PERM,
+ .doit = batadv_netlink_set_vlan,
+ .internal_flags = BATADV_FLAG_NEED_MESH |
+ BATADV_FLAG_NEED_VLAN,
+ },
};
struct genl_family batadv_netlink_family __ro_after_init = {
@@ -634,10 +1482,13 @@
.name = BATADV_NL_NAME,
.version = 1,
.maxattr = BATADV_ATTR_MAX,
+ .policy = batadv_netlink_policy,
.netnsok = true,
+ .pre_doit = batadv_pre_doit,
+ .post_doit = batadv_post_doit,
.module = THIS_MODULE,
- .ops = batadv_netlink_ops,
- .n_ops = ARRAY_SIZE(batadv_netlink_ops),
+ .small_ops = batadv_netlink_ops,
+ .n_small_ops = ARRAY_SIZE(batadv_netlink_ops),
.mcgrps = batadv_netlink_mcgrps,
.n_mcgrps = ARRAY_SIZE(batadv_netlink_mcgrps),
};
--
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