hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

This feature/cleanup patchset includes the following patches: 

- avoid redundant multicast TT entries, by Linus Luessing
 
  - add netlink support for distributed arp table cache and multicast flags,
    by Linus Luessing (2 patches)
 -----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCgA0FiEE1ilQI7G+y+fdhnrfoSvjmEKSnqEFAlqv59kWHHN3QHNpbW9u
 d3VuZGVybGljaC5kZQAKCRChK+OYQpKeoSBaD/9r/oJC+Q/3Eu6DTAAiS7Jx2IpQ
 kOwU7l4hkGK8mBZ098CkmHTBY+zurqYwcokCHhKJO5mqJEpvlM27PuQxzqWSBMMO
 FWFax2YlKPpJp+/f/rSD9HS73RTY7npv6l5/eFg6+0WSQET04PjLB1KxPrO5u1+Z
 JujrAxp0GEyMoVQgMy9uloedkpizhADyYSZzDDXnHhq1NiAPU87cjrTLv/xdtdp7
 TvbNfobhZUmKZ951yaRlDmE+mH8IoTQoY7HD/JANnduYeFJAlIPnHQEQa8+5tLwO
 qWUeLa4Acv5MhO2KjbKQpu5r2dFbs0x+jmsja8xBmgNWO5meKh/aE8TKGJeDVQEW
 TTynEivf82suiquCIZ573fBnliJkipffg32ZHgtNGrh54hh+YU7Sts0t9Lsou4ar
 aOU6lup3MHFysf3s9hK6y9TzSqwFJ8Mak0UFsa03r0Ub8am6bKHTqMFaCgN0aK9P
 vBL4atSvJVguwPlzxLMi44K4NxqEVfa41dZ7nQ99P3BFzWwSvph3i4lu+cxGxwI7
 4kgWU5Cz8T51dH7g8j3vUish36DzwQtUsKLWZVpV+DV4BaHJ/rLyqeug3ffUrWRk
 p0bFU7wBAv8rKeFPd30m2tdJ/nMo+rDbN6Tm9n43tK4NWKOGBndhCoNhjfrzhM8U
 un6Iy7taISgeElZ5fQ==
 =HVxO
 -----END PGP SIGNATURE-----

Merge tag 'batadv-next-for-davem-20180319' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
This feature/cleanup patchset includes the following patches:

 - avoid redundant multicast TT entries, by Linus Luessing

 - add netlink support for distributed arp table cache and multicast flags,
   by Linus Luessing (2 patches)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-03-22 11:28:54 -04:00
parent bdf5bd7f21 53dd9a68ba
commit 755f6633d6
6 changed files with 604 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

82
include/uapi/linux/batman_adv.h
View File

@ -91,6 +91,53 @@ enum batadv_tt_client_flags {
BATADV_TT_CLIENT_TEMP = (1 << 11),
};
/**
* enum batadv_mcast_flags_priv - Private, own multicast flags
*
* These are internal, multicast related flags. Currently they describe certain
* multicast related attributes of the segment this originator bridges into the
* mesh.
*
* Those attributes are used to determine the public multicast flags this
* originator is going to announce via TT.
*
* For netlink, if BATADV_MCAST_FLAGS_BRIDGED is unset then all querier
* related flags are undefined.
*/
enum batadv_mcast_flags_priv {
/**
* @BATADV_MCAST_FLAGS_BRIDGED: There is a bridge on top of the mesh
* interface.
*/
BATADV_MCAST_FLAGS_BRIDGED = (1 << 0),
/**
* @BATADV_MCAST_FLAGS_QUERIER_IPV4_EXISTS: Whether an IGMP querier
* exists in the mesh
*/
BATADV_MCAST_FLAGS_QUERIER_IPV4_EXISTS = (1 << 1),
/**
* @BATADV_MCAST_FLAGS_QUERIER_IPV6_EXISTS: Whether an MLD querier
* exists in the mesh
*/
BATADV_MCAST_FLAGS_QUERIER_IPV6_EXISTS = (1 << 2),
/**
* @BATADV_MCAST_FLAGS_QUERIER_IPV4_SHADOWING: If an IGMP querier
* exists, whether it is potentially shadowing multicast listeners
* (i.e. querier is behind our own bridge segment)
*/
BATADV_MCAST_FLAGS_QUERIER_IPV4_SHADOWING = (1 << 3),
/**
* @BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING: If an MLD querier
* exists, whether it is potentially shadowing multicast listeners
* (i.e. querier is behind our own bridge segment)
*/
BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING = (1 << 4),
};
/**
* enum batadv_nl_attrs - batman-adv netlink attributes
*/
@ -272,6 +319,31 @@ enum batadv_nl_attrs {
*/
BATADV_ATTR_BLA_CRC,
/**
* @BATADV_ATTR_DAT_CACHE_IP4ADDRESS: Client IPv4 address
*/
BATADV_ATTR_DAT_CACHE_IP4ADDRESS,
/**
* @BATADV_ATTR_DAT_CACHE_HWADDRESS: Client MAC address
*/
BATADV_ATTR_DAT_CACHE_HWADDRESS,
/**
* @BATADV_ATTR_DAT_CACHE_VID: VLAN ID
*/
BATADV_ATTR_DAT_CACHE_VID,
/**
* @BATADV_ATTR_MCAST_FLAGS: Per originator multicast flags
*/
BATADV_ATTR_MCAST_FLAGS,
/**
* @BATADV_ATTR_MCAST_FLAGS_PRIV: Private, own multicast flags
*/
BATADV_ATTR_MCAST_FLAGS_PRIV,
/* add attributes above here, update the policy in netlink.c */
/**
@ -361,6 +433,16 @@ enum batadv_nl_commands {
*/
BATADV_CMD_GET_BLA_BACKBONE,
/**
* @BATADV_CMD_GET_DAT_CACHE: Query list of DAT cache entries
*/
BATADV_CMD_GET_DAT_CACHE,
/**
* @BATADV_CMD_GET_MCAST_FLAGS: Query list of multicast flags
*/
BATADV_CMD_GET_MCAST_FLAGS,
/* add new commands above here */
/**

152
net/batman-adv/distributed-arp-table.c
View File

@ -33,6 +33,7 @@
#include <linux/kernel.h>
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/netlink.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
#include <linux/seq_file.h>
@ -43,13 +44,19 @@
#include <linux/string.h>
#include <linux/workqueue.h>
#include <net/arp.h>
#include <net/genetlink.h>
#include <net/netlink.h>
#include <net/sock.h>
#include <uapi/linux/batman_adv.h>
#include "bridge_loop_avoidance.h"
#include "hard-interface.h"
#include "hash.h"
#include "log.h"
#include "netlink.h"
#include "originator.h"
#include "send.h"
#include "soft-interface.h"
#include "translation-table.h"
#include "tvlv.h"
@ -851,6 +858,151 @@ out:
}
#endif
/**
* batadv_dat_cache_dump_entry() - dump one entry of the DAT cache table to a
* netlink socket
* @msg: buffer for the message
* @portid: netlink port
* @seq: Sequence number of netlink message
* @dat_entry: entry to dump
*
* Return: 0 or error code.
*/
static int
batadv_dat_cache_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
struct batadv_dat_entry *dat_entry)
{
int msecs;
void *hdr;
hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family,
NLM_F_MULTI, BATADV_CMD_GET_DAT_CACHE);
if (!hdr)
return -ENOBUFS;
msecs = jiffies_to_msecs(jiffies - dat_entry->last_update);
if (nla_put_in_addr(msg, BATADV_ATTR_DAT_CACHE_IP4ADDRESS,
dat_entry->ip) ||
nla_put(msg, BATADV_ATTR_DAT_CACHE_HWADDRESS, ETH_ALEN,
dat_entry->mac_addr) ||
nla_put_u16(msg, BATADV_ATTR_DAT_CACHE_VID, dat_entry->vid) ||
nla_put_u32(msg, BATADV_ATTR_LAST_SEEN_MSECS, msecs)) {
genlmsg_cancel(msg, hdr);
return -EMSGSIZE;
}
genlmsg_end(msg, hdr);
return 0;
}
/**
* batadv_dat_cache_dump_bucket() - dump one bucket of the DAT cache table to
* a netlink socket
* @msg: buffer for the message
* @portid: netlink port
* @seq: Sequence number of netlink message
* @head: bucket to dump
* @idx_skip: How many entries to skip
*
* Return: 0 or error code.
*/
static int
batadv_dat_cache_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
struct hlist_head *head, int *idx_skip)
{
struct batadv_dat_entry *dat_entry;
int idx = 0;
rcu_read_lock();
hlist_for_each_entry_rcu(dat_entry, head, hash_entry) {
if (idx < *idx_skip)
goto skip;
if (batadv_dat_cache_dump_entry(msg, portid, seq,
dat_entry)) {
rcu_read_unlock();
*idx_skip = idx;
return -EMSGSIZE;
}
skip:
idx++;
}
rcu_read_unlock();
return 0;
}
/**
* batadv_dat_cache_dump() - dump DAT cache table to a netlink socket
* @msg: buffer for the message
* @cb: callback structure containing arguments
*
* Return: message length.
*/
int batadv_dat_cache_dump(struct sk_buff *msg, struct netlink_callback *cb)
{
struct batadv_hard_iface *primary_if = NULL;
int portid = NETLINK_CB(cb->skb).portid;
struct net *net = sock_net(cb->skb->sk);
struct net_device *soft_iface;
struct batadv_hashtable *hash;
struct batadv_priv *bat_priv;
int bucket = cb->args[0];
struct hlist_head *head;
int idx = cb->args[1];
int ifindex;
int ret = 0;
ifindex = batadv_netlink_get_ifindex(cb->nlh,
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;
}
bat_priv = netdev_priv(soft_iface);
hash = bat_priv->dat.hash;
primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if || primary_if->if_status != BATADV_IF_ACTIVE) {
ret = -ENOENT;
goto out;
}
while (bucket < hash->size) {
head = &hash->table[bucket];
if (batadv_dat_cache_dump_bucket(msg, portid,
cb->nlh->nlmsg_seq, head,
&idx))
break;
bucket++;
idx = 0;
}
cb->args[0] = bucket;
cb->args[1] = idx;
ret = msg->len;
out:
if (primary_if)
batadv_hardif_put(primary_if);
if (soft_iface)
dev_put(soft_iface);
return ret;
}
/**
* batadv_arp_get_type() - parse an ARP packet and gets the type
* @bat_priv: the bat priv with all the soft interface information

8
net/batman-adv/distributed-arp-table.h
View File

@ -28,6 +28,7 @@
#include "originator.h"
struct netlink_callback;
struct seq_file;
struct sk_buff;
@ -81,6 +82,7 @@ batadv_dat_init_own_addr(struct batadv_priv *bat_priv,
int batadv_dat_init(struct batadv_priv *bat_priv);
void batadv_dat_free(struct batadv_priv *bat_priv);
int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset);
int batadv_dat_cache_dump(struct sk_buff *msg, struct netlink_callback *cb);
/**
* batadv_dat_inc_counter() - increment the correct DAT packet counter
@ -169,6 +171,12 @@ static inline void batadv_dat_free(struct batadv_priv *bat_priv)
{
}
static inline int
batadv_dat_cache_dump(struct sk_buff *msg, struct netlink_callback *cb)
{
return -EOPNOTSUPP;
}
static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
u8 subtype)
{

293
net/batman-adv/multicast.c
View File

@ -40,6 +40,7 @@
#include <linux/list.h>
#include <linux/lockdep.h>
#include <linux/netdevice.h>
#include <linux/netlink.h>
#include <linux/printk.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
@ -52,14 +53,20 @@
#include <linux/types.h>
#include <linux/workqueue.h>
#include <net/addrconf.h>
#include <net/genetlink.h>
#include <net/if_inet6.h>
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/netlink.h>
#include <net/sock.h>
#include <uapi/linux/batadv_packet.h>
#include <uapi/linux/batman_adv.h>
#include "hard-interface.h"
#include "hash.h"
#include "log.h"
#include "netlink.h"
#include "soft-interface.h"
#include "translation-table.h"
#include "tvlv.h"
@ -101,8 +108,37 @@ static struct net_device *batadv_mcast_get_bridge(struct net_device *soft_iface)
return upper;
}
/**
* batadv_mcast_addr_is_ipv4() - check if multicast MAC is IPv4
* @addr: the MAC address to check
*
* Return: True, if MAC address is one reserved for IPv4 multicast, false
* otherwise.
*/
static bool batadv_mcast_addr_is_ipv4(const u8 *addr)
{
static const u8 prefix[] = {0x01, 0x00, 0x5E};
return memcmp(prefix, addr, sizeof(prefix)) == 0;
}
/**
* batadv_mcast_addr_is_ipv6() - check if multicast MAC is IPv6
* @addr: the MAC address to check
*
* Return: True, if MAC address is one reserved for IPv6 multicast, false
* otherwise.
*/
static bool batadv_mcast_addr_is_ipv6(const u8 *addr)
{
static const u8 prefix[] = {0x33, 0x33};
return memcmp(prefix, addr, sizeof(prefix)) == 0;
}
/**
* batadv_mcast_mla_softif_get() - get softif multicast listeners
* @bat_priv: the bat priv with all the soft interface information
* @dev: the device to collect multicast addresses from
* @mcast_list: a list to put found addresses into
*
@ -119,9 +155,12 @@ static struct net_device *batadv_mcast_get_bridge(struct net_device *soft_iface)
* Return: -ENOMEM on memory allocation error or the number of
* items added to the mcast_list otherwise.
*/
static int batadv_mcast_mla_softif_get(struct net_device *dev,
static int batadv_mcast_mla_softif_get(struct batadv_priv *bat_priv,
struct net_device *dev,
struct hlist_head *mcast_list)
{
bool all_ipv4 = bat_priv->mcast.flags & BATADV_MCAST_WANT_ALL_IPV4;
bool all_ipv6 = bat_priv->mcast.flags & BATADV_MCAST_WANT_ALL_IPV6;
struct net_device *bridge = batadv_mcast_get_bridge(dev);
struct netdev_hw_addr *mc_list_entry;
struct batadv_hw_addr *new;
@ -129,6 +168,12 @@ static int batadv_mcast_mla_softif_get(struct net_device *dev,
netif_addr_lock_bh(bridge ? bridge : dev);
netdev_for_each_mc_addr(mc_list_entry, bridge ? bridge : dev) {
if (all_ipv4 && batadv_mcast_addr_is_ipv4(mc_list_entry->addr))
continue;
if (all_ipv6 && batadv_mcast_addr_is_ipv6(mc_list_entry->addr))
continue;
new = kmalloc(sizeof(*new), GFP_ATOMIC);
if (!new) {
ret = -ENOMEM;
@ -193,6 +238,7 @@ static void batadv_mcast_mla_br_addr_cpy(char *dst, const struct br_ip *src)
/**
* batadv_mcast_mla_bridge_get() - get bridged-in multicast listeners
* @bat_priv: the bat priv with all the soft interface information
* @dev: a bridge slave whose bridge to collect multicast addresses from
* @mcast_list: a list to put found addresses into
*
@ -204,10 +250,13 @@ static void batadv_mcast_mla_br_addr_cpy(char *dst, const struct br_ip *src)
* Return: -ENOMEM on memory allocation error or the number of
* items added to the mcast_list otherwise.
*/
static int batadv_mcast_mla_bridge_get(struct net_device *dev,
static int batadv_mcast_mla_bridge_get(struct batadv_priv *bat_priv,
struct net_device *dev,
struct hlist_head *mcast_list)
{
struct list_head bridge_mcast_list = LIST_HEAD_INIT(bridge_mcast_list);
bool all_ipv4 = bat_priv->mcast.flags & BATADV_MCAST_WANT_ALL_IPV4;
bool all_ipv6 = bat_priv->mcast.flags & BATADV_MCAST_WANT_ALL_IPV6;
struct br_ip_list *br_ip_entry, *tmp;
struct batadv_hw_addr *new;
u8 mcast_addr[ETH_ALEN];
@ -221,6 +270,12 @@ static int batadv_mcast_mla_bridge_get(struct net_device *dev,
goto out;
list_for_each_entry(br_ip_entry, &bridge_mcast_list, list) {
if (all_ipv4 && br_ip_entry->addr.proto == htons(ETH_P_IP))
continue;
if (all_ipv6 && br_ip_entry->addr.proto == htons(ETH_P_IPV6))
continue;
batadv_mcast_mla_br_addr_cpy(mcast_addr, &br_ip_entry->addr);
if (batadv_mcast_mla_is_duplicate(mcast_addr, mcast_list))
continue;
@ -568,11 +623,11 @@ static void __batadv_mcast_mla_update(struct batadv_priv *bat_priv)
if (!batadv_mcast_mla_tvlv_update(bat_priv))
goto update;
ret = batadv_mcast_mla_softif_get(soft_iface, &mcast_list);
ret = batadv_mcast_mla_softif_get(bat_priv, soft_iface, &mcast_list);
if (ret < 0)
goto out;
ret = batadv_mcast_mla_bridge_get(soft_iface, &mcast_list);
ret = batadv_mcast_mla_bridge_get(bat_priv, soft_iface, &mcast_list);
if (ret < 0)
goto out;
@ -1285,6 +1340,236 @@ int batadv_mcast_flags_seq_print_text(struct seq_file *seq, void *offset)
}
#endif
/**
* batadv_mcast_mesh_info_put() - put multicast info into a netlink message
* @msg: buffer for the message
* @bat_priv: the bat priv with all the soft interface information
*
* Return: 0 or error code.
*/
int batadv_mcast_mesh_info_put(struct sk_buff *msg,
struct batadv_priv *bat_priv)
{
u32 flags = bat_priv->mcast.flags;
u32 flags_priv = BATADV_NO_FLAGS;
if (bat_priv->mcast.bridged) {
flags_priv |= BATADV_MCAST_FLAGS_BRIDGED;
if (bat_priv->mcast.querier_ipv4.exists)
flags_priv |= BATADV_MCAST_FLAGS_QUERIER_IPV4_EXISTS;
if (bat_priv->mcast.querier_ipv6.exists)
flags_priv |= BATADV_MCAST_FLAGS_QUERIER_IPV6_EXISTS;
if (bat_priv->mcast.querier_ipv4.shadowing)
flags_priv |= BATADV_MCAST_FLAGS_QUERIER_IPV4_SHADOWING;
if (bat_priv->mcast.querier_ipv6.shadowing)
flags_priv |= BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING;
}
if (nla_put_u32(msg, BATADV_ATTR_MCAST_FLAGS, flags) ||
nla_put_u32(msg, BATADV_ATTR_MCAST_FLAGS_PRIV, flags_priv))
return -EMSGSIZE;
return 0;
}
/**
* batadv_mcast_flags_dump_entry() - dump one entry of the multicast flags table
* to a netlink socket
* @msg: buffer for the message
* @portid: netlink port
* @seq: Sequence number of netlink message
* @orig_node: originator to dump the multicast flags of
*
* Return: 0 or error code.
*/
static int
batadv_mcast_flags_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
struct batadv_orig_node *orig_node)
{
void *hdr;
hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family,
NLM_F_MULTI, BATADV_CMD_GET_MCAST_FLAGS);
if (!hdr)
return -ENOBUFS;
if (nla_put(msg, BATADV_ATTR_ORIG_ADDRESS, ETH_ALEN,
orig_node->orig)) {
genlmsg_cancel(msg, hdr);
return -EMSGSIZE;
}
if (test_bit(BATADV_ORIG_CAPA_HAS_MCAST,
&orig_node->capabilities)) {
if (nla_put_u32(msg, BATADV_ATTR_MCAST_FLAGS,
orig_node->mcast_flags)) {
genlmsg_cancel(msg, hdr);
return -EMSGSIZE;
}
}
genlmsg_end(msg, hdr);
return 0;
}
/**
* batadv_mcast_flags_dump_bucket() - dump one bucket of the multicast flags
* table to a netlink socket
* @msg: buffer for the message
* @portid: netlink port
* @seq: Sequence number of netlink message
* @head: bucket to dump
* @idx_skip: How many entries to skip
*
* Return: 0 or error code.
*/
static int
batadv_mcast_flags_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
struct hlist_head *head, long *idx_skip)
{
struct batadv_orig_node *orig_node;
long idx = 0;
rcu_read_lock();
hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
if (!test_bit(BATADV_ORIG_CAPA_HAS_MCAST,
&orig_node->capa_initialized))
continue;
if (idx < *idx_skip)
goto skip;
if (batadv_mcast_flags_dump_entry(msg, portid, seq,
orig_node)) {
rcu_read_unlock();
*idx_skip = idx;
return -EMSGSIZE;
}
skip:
idx++;
}
rcu_read_unlock();
return 0;
}
/**
* __batadv_mcast_flags_dump() - dump multicast flags table to a netlink socket
* @msg: buffer for the message
* @portid: netlink port
* @seq: Sequence number of netlink message
* @bat_priv: the bat priv with all the soft interface information
* @bucket: current bucket to dump
* @idx: index in current bucket to the next entry to dump
*
* Return: 0 or error code.
*/
static int
__batadv_mcast_flags_dump(struct sk_buff *msg, u32 portid, u32 seq,
struct batadv_priv *bat_priv, long *bucket, long *idx)
{
struct batadv_hashtable *hash = bat_priv->orig_hash;
long bucket_tmp = *bucket;
struct hlist_head *head;
long idx_tmp = *idx;
while (bucket_tmp < hash->size) {
head = &hash->table[bucket_tmp];
if (batadv_mcast_flags_dump_bucket(msg, portid, seq, head,
&idx_tmp))
break;
bucket_tmp++;
idx_tmp = 0;
}
*bucket = bucket_tmp;
*idx = idx_tmp;
return msg->len;
}
/**
* batadv_mcast_netlink_get_primary() - get primary interface from netlink
* callback
* @cb: netlink callback structure
* @primary_if: the primary interface pointer to return the result in
*
* Return: 0 or error code.
*/
static int
batadv_mcast_netlink_get_primary(struct netlink_callback *cb,
struct batadv_hard_iface **primary_if)
{
struct batadv_hard_iface *hard_iface = NULL;
struct net *net = sock_net(cb->skb->sk);
struct net_device *soft_iface;
struct batadv_priv *bat_priv;
int ifindex;
int ret = 0;
ifindex = batadv_netlink_get_ifindex(cb->nlh, 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;
}
bat_priv = netdev_priv(soft_iface);
hard_iface = batadv_primary_if_get_selected(bat_priv);
if (!hard_iface || hard_iface->if_status != BATADV_IF_ACTIVE) {
ret = -ENOENT;
goto out;
}
out:
if (soft_iface)
dev_put(soft_iface);
if (!ret && primary_if)
*primary_if = hard_iface;
else
batadv_hardif_put(hard_iface);
return ret;
}
/**
* batadv_mcast_flags_dump() - dump multicast flags table to a netlink socket
* @msg: buffer for the message
* @cb: callback structure containing arguments
*
* Return: message length.
*/
int batadv_mcast_flags_dump(struct sk_buff *msg, struct netlink_callback *cb)
{
struct batadv_hard_iface *primary_if = NULL;
int portid = NETLINK_CB(cb->skb).portid;
struct batadv_priv *bat_priv;
long *bucket = &cb->args[0];
long *idx = &cb->args[1];
int ret;
ret = batadv_mcast_netlink_get_primary(cb, &primary_if);
if (ret)
return ret;
bat_priv = netdev_priv(primary_if->soft_iface);
ret = __batadv_mcast_flags_dump(msg, portid, cb->nlh->nlmsg_seq,
bat_priv, bucket, idx);
batadv_hardif_put(primary_if);
return ret;
}
/**
* batadv_mcast_free() - free the multicast optimizations structures
* @bat_priv: the bat priv with all the soft interface information

18
net/batman-adv/multicast.h
View File

@ -21,6 +21,7 @@
#include "main.h"
struct netlink_callback;
struct seq_file;
struct sk_buff;
@ -54,6 +55,11 @@ void batadv_mcast_init(struct batadv_priv *bat_priv);
int batadv_mcast_flags_seq_print_text(struct seq_file *seq, void *offset);
int batadv_mcast_mesh_info_put(struct sk_buff *msg,
struct batadv_priv *bat_priv);
int batadv_mcast_flags_dump(struct sk_buff *msg, struct netlink_callback *cb);
void batadv_mcast_free(struct batadv_priv *bat_priv);
void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node);
@ -72,6 +78,18 @@ static inline int batadv_mcast_init(struct batadv_priv *bat_priv)
return 0;
}
static inline int
batadv_mcast_mesh_info_put(struct sk_buff *msg, struct batadv_priv *bat_priv)
{
return 0;
}
static inline int batadv_mcast_flags_dump(struct sk_buff *msg,
struct netlink_callback *cb)
{
return -EOPNOTSUPP;
}
static inline void batadv_mcast_free(struct batadv_priv *bat_priv)
{
}

88
net/batman-adv/netlink.c
View File

@ -45,8 +45,10 @@
#include "bat_algo.h"
#include "bridge_loop_avoidance.h"
#include "distributed-arp-table.h"
#include "gateway_client.h"
#include "hard-interface.h"
#include "multicast.h"
#include "originator.h"
#include "soft-interface.h"
#include "tp_meter.h"
@ -64,39 +66,44 @@ static const struct genl_multicast_group batadv_netlink_mcgrps[] = {
};
static const struct nla_policy batadv_netlink_policy[NUM_BATADV_ATTR] = {
[BATADV_ATTR_VERSION] = { .type = NLA_STRING },
[BATADV_ATTR_ALGO_NAME] = { .type = NLA_STRING },
[BATADV_ATTR_MESH_IFINDEX] = { .type = NLA_U32 },
[BATADV_ATTR_MESH_IFNAME] = { .type = NLA_STRING },
[BATADV_ATTR_MESH_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_HARD_IFINDEX] = { .type = NLA_U32 },
[BATADV_ATTR_HARD_IFNAME] = { .type = NLA_STRING },
[BATADV_ATTR_HARD_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_ORIG_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_TPMETER_RESULT] = { .type = NLA_U8 },
[BATADV_ATTR_TPMETER_TEST_TIME] = { .type = NLA_U32 },
[BATADV_ATTR_TPMETER_BYTES] = { .type = NLA_U64 },
[BATADV_ATTR_TPMETER_COOKIE] = { .type = NLA_U32 },
[BATADV_ATTR_ACTIVE] = { .type = NLA_FLAG },
[BATADV_ATTR_TT_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_TT_TTVN] = { .type = NLA_U8 },
[BATADV_ATTR_TT_LAST_TTVN] = { .type = NLA_U8 },
[BATADV_ATTR_TT_CRC32] = { .type = NLA_U32 },
[BATADV_ATTR_TT_VID] = { .type = NLA_U16 },
[BATADV_ATTR_TT_FLAGS] = { .type = NLA_U32 },
[BATADV_ATTR_FLAG_BEST] = { .type = NLA_FLAG },
[BATADV_ATTR_LAST_SEEN_MSECS] = { .type = NLA_U32 },
[BATADV_ATTR_NEIGH_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_TQ] = { .type = NLA_U8 },
[BATADV_ATTR_THROUGHPUT] = { .type = NLA_U32 },
[BATADV_ATTR_BANDWIDTH_UP] = { .type = NLA_U32 },
[BATADV_ATTR_BANDWIDTH_DOWN] = { .type = NLA_U32 },
[BATADV_ATTR_ROUTER] = { .len = ETH_ALEN },
[BATADV_ATTR_BLA_OWN] = { .type = NLA_FLAG },
[BATADV_ATTR_BLA_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_BLA_VID] = { .type = NLA_U16 },
[BATADV_ATTR_BLA_BACKBONE] = { .len = ETH_ALEN },
[BATADV_ATTR_BLA_CRC] = { .type = NLA_U16 },
[BATADV_ATTR_VERSION] = { .type = NLA_STRING },
[BATADV_ATTR_ALGO_NAME] = { .type = NLA_STRING },
[BATADV_ATTR_MESH_IFINDEX] = { .type = NLA_U32 },
[BATADV_ATTR_MESH_IFNAME] = { .type = NLA_STRING },
[BATADV_ATTR_MESH_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_HARD_IFINDEX] = { .type = NLA_U32 },
[BATADV_ATTR_HARD_IFNAME] = { .type = NLA_STRING },
[BATADV_ATTR_HARD_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_ORIG_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_TPMETER_RESULT] = { .type = NLA_U8 },
[BATADV_ATTR_TPMETER_TEST_TIME] = { .type = NLA_U32 },
[BATADV_ATTR_TPMETER_BYTES] = { .type = NLA_U64 },
[BATADV_ATTR_TPMETER_COOKIE] = { .type = NLA_U32 },
[BATADV_ATTR_ACTIVE] = { .type = NLA_FLAG },
[BATADV_ATTR_TT_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_TT_TTVN] = { .type = NLA_U8 },
[BATADV_ATTR_TT_LAST_TTVN] = { .type = NLA_U8 },
[BATADV_ATTR_TT_CRC32] = { .type = NLA_U32 },
[BATADV_ATTR_TT_VID] = { .type = NLA_U16 },
[BATADV_ATTR_TT_FLAGS] = { .type = NLA_U32 },
[BATADV_ATTR_FLAG_BEST] = { .type = NLA_FLAG },
[BATADV_ATTR_LAST_SEEN_MSECS] = { .type = NLA_U32 },
[BATADV_ATTR_NEIGH_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_TQ] = { .type = NLA_U8 },
[BATADV_ATTR_THROUGHPUT] = { .type = NLA_U32 },
[BATADV_ATTR_BANDWIDTH_UP] = { .type = NLA_U32 },
[BATADV_ATTR_BANDWIDTH_DOWN] = { .type = NLA_U32 },
[BATADV_ATTR_ROUTER] = { .len = ETH_ALEN },
[BATADV_ATTR_BLA_OWN] = { .type = NLA_FLAG },
[BATADV_ATTR_BLA_ADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_BLA_VID] = { .type = NLA_U16 },
[BATADV_ATTR_BLA_BACKBONE] = { .len = ETH_ALEN },
[BATADV_ATTR_BLA_CRC] = { .type = NLA_U16 },
[BATADV_ATTR_DAT_CACHE_IP4ADDRESS] = { .type = NLA_U32 },
[BATADV_ATTR_DAT_CACHE_HWADDRESS] = { .len = ETH_ALEN },
[BATADV_ATTR_DAT_CACHE_VID] = { .type = NLA_U16 },
[BATADV_ATTR_MCAST_FLAGS] = { .type = NLA_U32 },
[BATADV_ATTR_MCAST_FLAGS_PRIV] = { .type = NLA_U32 },
};
/**
@ -147,6 +154,9 @@ batadv_netlink_mesh_info_put(struct sk_buff *msg, struct net_device *soft_iface)
goto out;
#endif
if (batadv_mcast_mesh_info_put(msg, bat_priv))
goto out;
primary_if = batadv_primary_if_get_selected(bat_priv);
if (primary_if && primary_if->if_status == BATADV_IF_ACTIVE) {
hard_iface = primary_if->net_dev;
@ -604,6 +614,18 @@ static const struct genl_ops batadv_netlink_ops[] = {
.policy = batadv_netlink_policy,
.dumpit = batadv_bla_backbone_dump,
},
{
.cmd = BATADV_CMD_GET_DAT_CACHE,
.flags = GENL_ADMIN_PERM,
.policy = batadv_netlink_policy,
.dumpit = batadv_dat_cache_dump,
},
{
.cmd = BATADV_CMD_GET_MCAST_FLAGS,
.flags = GENL_ADMIN_PERM,
.policy = batadv_netlink_policy,
.dumpit = batadv_mcast_flags_dump,
},
};