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igmp: Namespacify igmp_qrv sysctl knob

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Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Borisov
2016-02-08 23:29:24 +02:00
committed by David S. Miller
parent 87a8a2ae65
commit 165094afce
5 changed files with 29 additions and 24 deletions
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29
net/ipv4/igmp.c
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@@ -762,9 +762,10 @@ static void igmp_ifc_timer_expire(unsigned long data)
static void igmp_ifc_event(struct in_device *in_dev)
{
struct net *net = dev_net(in_dev->dev);
if (IGMP_V1_SEEN(in_dev) || IGMP_V2_SEEN(in_dev))
return;
in_dev->mr_ifc_count = in_dev->mr_qrv ?: sysctl_igmp_qrv;
in_dev->mr_ifc_count = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
igmp_ifc_start_timer(in_dev, 1);
}
@@ -1086,6 +1087,7 @@ static void ip_mc_filter_del(struct in_device *in_dev, __be32 addr)
static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im)
{
struct ip_mc_list *pmc;
struct net *net = dev_net(in_dev->dev);
/* this is an "ip_mc_list" for convenience; only the fields below
* are actually used. In particular, the refcnt and users are not
@@ -1100,7 +1102,7 @@ static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im)
pmc->interface = im->interface;
in_dev_hold(in_dev);
pmc->multiaddr = im->multiaddr;
pmc->crcount = in_dev->mr_qrv ?: sysctl_igmp_qrv;
pmc->crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
pmc->sfmode = im->sfmode;
if (pmc->sfmode == MCAST_INCLUDE) {
struct ip_sf_list *psf;
@@ -1245,7 +1247,7 @@ static void igmp_group_added(struct ip_mc_list *im)
}
/* else, v3 */
im->crcount = in_dev->mr_qrv ?: sysctl_igmp_qrv;
im->crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
igmp_ifc_event(in_dev);
#endif
}
@@ -1314,6 +1316,7 @@ static void ip_mc_hash_remove(struct in_device *in_dev,
void ip_mc_inc_group(struct in_device *in_dev, __be32 addr)
{
struct ip_mc_list *im;
struct net *net = dev_net(in_dev->dev);
ASSERT_RTNL();
@@ -1340,7 +1343,7 @@ void ip_mc_inc_group(struct in_device *in_dev, __be32 addr)
spin_lock_init(&im->lock);
#ifdef CONFIG_IP_MULTICAST
setup_timer(&im->timer, igmp_timer_expire, (unsigned long)im);
im->unsolicit_count = sysctl_igmp_qrv;
im->unsolicit_count = net->ipv4.sysctl_igmp_qrv;
#endif
im->next_rcu = in_dev->mc_list;
@@ -1640,6 +1643,7 @@ void ip_mc_down(struct in_device *in_dev)
void ip_mc_init_dev(struct in_device *in_dev)
{
struct net *net = dev_net(in_dev->dev);
ASSERT_RTNL();
#ifdef CONFIG_IP_MULTICAST
@@ -1647,7 +1651,7 @@ void ip_mc_init_dev(struct in_device *in_dev)
(unsigned long)in_dev);
setup_timer(&in_dev->mr_ifc_timer, igmp_ifc_timer_expire,
(unsigned long)in_dev);
in_dev->mr_qrv = sysctl_igmp_qrv;
in_dev->mr_qrv = net->ipv4.sysctl_igmp_qrv;
#endif
spin_lock_init(&in_dev->mc_tomb_lock);
@@ -1658,11 +1662,12 @@ void ip_mc_init_dev(struct in_device *in_dev)
void ip_mc_up(struct in_device *in_dev)
{
struct ip_mc_list *pmc;
struct net *net = dev_net(in_dev->dev);
ASSERT_RTNL();
#ifdef CONFIG_IP_MULTICAST
in_dev->mr_qrv = sysctl_igmp_qrv;
in_dev->mr_qrv = net->ipv4.sysctl_igmp_qrv;
#endif
ip_mc_inc_group(in_dev, IGMP_ALL_HOSTS);
@@ -1728,9 +1733,6 @@ static struct in_device *ip_mc_find_dev(struct net *net, struct ip_mreqn *imr)
/*
* Join a socket to a group
*/
#ifdef CONFIG_IP_MULTICAST
int sysctl_igmp_qrv __read_mostly = IGMP_QUERY_ROBUSTNESS_VARIABLE;
#endif
static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode,
__be32 *psfsrc)
@@ -1755,6 +1757,7 @@ static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode,
if (!psf->sf_count[MCAST_INCLUDE] && !psf->sf_count[MCAST_EXCLUDE]) {
#ifdef CONFIG_IP_MULTICAST
struct in_device *in_dev = pmc->interface;
struct net *net = dev_net(in_dev->dev);
#endif
/* no more filters for this source */
@@ -1765,7 +1768,7 @@ static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode,
#ifdef CONFIG_IP_MULTICAST
if (psf->sf_oldin &&
!IGMP_V1_SEEN(in_dev) && !IGMP_V2_SEEN(in_dev)) {
psf->sf_crcount = in_dev->mr_qrv ?: sysctl_igmp_qrv;
psf->sf_crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
psf->sf_next = pmc->tomb;
pmc->tomb = psf;
rv = 1;
@@ -1823,12 +1826,13 @@ static int ip_mc_del_src(struct in_device *in_dev, __be32 *pmca, int sfmode,
pmc->sfcount[MCAST_INCLUDE]) {
#ifdef CONFIG_IP_MULTICAST
struct ip_sf_list *psf;
struct net *net = dev_net(in_dev->dev);
#endif
/* filter mode change */
pmc->sfmode = MCAST_INCLUDE;
#ifdef CONFIG_IP_MULTICAST
pmc->crcount = in_dev->mr_qrv ?: sysctl_igmp_qrv;
pmc->crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
in_dev->mr_ifc_count = pmc->crcount;
for (psf = pmc->sources; psf; psf = psf->sf_next)
psf->sf_crcount = 0;
@@ -1995,6 +1999,7 @@ static int ip_mc_add_src(struct in_device *in_dev, __be32 *pmca, int sfmode,
} else if (isexclude != (pmc->sfcount[MCAST_EXCLUDE] != 0)) {
#ifdef CONFIG_IP_MULTICAST
struct ip_sf_list *psf;
struct net *net = dev_net(pmc->interface->dev);
in_dev = pmc->interface;
#endif
@@ -2006,7 +2011,7 @@ static int ip_mc_add_src(struct in_device *in_dev, __be32 *pmca, int sfmode,
#ifdef CONFIG_IP_MULTICAST
/* else no filters; keep old mode for reports */
pmc->crcount = in_dev->mr_qrv ?: sysctl_igmp_qrv;
pmc->crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
in_dev->mr_ifc_count = pmc->crcount;
for (psf = pmc->sources; psf; psf = psf->sf_next)
psf->sf_crcount = 0;