ipmr, ip6mr: Make mfc_cache a common structure
mfc_cache and mfc6_cache are almost identical - the main difference is
in the origin/group addresses and comparison-key. Make a common
structure encapsulating most of the multicast routing logic - mr_mfc
and convert both ipmr and ip6mr into using it.
For easy conversion [casting, in this case] mr_mfc has to be the first
field inside every multicast routing abstraction utilizing it.
Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index f213933..3f75150 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -106,7 +106,7 @@ static void ip_mr_forward(struct net *net, struct mr_table *mrt,
static int ipmr_cache_report(struct mr_table *mrt,
struct sk_buff *pkt, vifi_t vifi, int assert);
static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
- struct mfc_cache *c, struct rtmsg *rtm);
+ struct mr_mfc *c, struct rtmsg *rtm);
static void mroute_netlink_event(struct mr_table *mrt, struct mfc_cache *mfc,
int cmd);
static void igmpmsg_netlink_event(struct mr_table *mrt, struct sk_buff *pkt);
@@ -343,7 +343,7 @@ static inline int ipmr_hash_cmp(struct rhashtable_compare_arg *arg,
}
static const struct rhashtable_params ipmr_rht_params = {
- .head_offset = offsetof(struct mfc_cache, mnode),
+ .head_offset = offsetof(struct mr_mfc, mnode),
.key_offset = offsetof(struct mfc_cache, cmparg),
.key_len = sizeof(struct mfc_cache_cmp_arg),
.nelem_hint = 3,
@@ -752,14 +752,14 @@ static int vif_delete(struct mr_table *mrt, int vifi, int notify,
static void ipmr_cache_free_rcu(struct rcu_head *head)
{
- struct mfc_cache *c = container_of(head, struct mfc_cache, rcu);
+ struct mr_mfc *c = container_of(head, struct mr_mfc, rcu);
- kmem_cache_free(mrt_cachep, c);
+ kmem_cache_free(mrt_cachep, (struct mfc_cache *)c);
}
void ipmr_cache_free(struct mfc_cache *c)
{
- call_rcu(&c->rcu, ipmr_cache_free_rcu);
+ call_rcu(&c->_c.rcu, ipmr_cache_free_rcu);
}
EXPORT_SYMBOL(ipmr_cache_free);
@@ -774,7 +774,7 @@ static void ipmr_destroy_unres(struct mr_table *mrt, struct mfc_cache *c)
atomic_dec(&mrt->cache_resolve_queue_len);
- while ((skb = skb_dequeue(&c->mfc_un.unres.unresolved))) {
+ while ((skb = skb_dequeue(&c->_c.mfc_un.unres.unresolved))) {
if (ip_hdr(skb)->version == 0) {
struct nlmsghdr *nlh = skb_pull(skb,
sizeof(struct iphdr));
@@ -798,9 +798,9 @@ static void ipmr_destroy_unres(struct mr_table *mrt, struct mfc_cache *c)
static void ipmr_expire_process(struct timer_list *t)
{
struct mr_table *mrt = from_timer(mrt, t, ipmr_expire_timer);
- unsigned long now;
+ struct mr_mfc *c, *next;
unsigned long expires;
- struct mfc_cache *c, *next;
+ unsigned long now;
if (!spin_trylock(&mfc_unres_lock)) {
mod_timer(&mrt->ipmr_expire_timer, jiffies+HZ/10);
@@ -822,8 +822,8 @@ static void ipmr_expire_process(struct timer_list *t)
}
list_del(&c->list);
- mroute_netlink_event(mrt, c, RTM_DELROUTE);
- ipmr_destroy_unres(mrt, c);
+ mroute_netlink_event(mrt, (struct mfc_cache *)c, RTM_DELROUTE);
+ ipmr_destroy_unres(mrt, (struct mfc_cache *)c);
}
if (!list_empty(&mrt->mfc_unres_queue))
@@ -834,7 +834,7 @@ static void ipmr_expire_process(struct timer_list *t)
}
/* Fill oifs list. It is called under write locked mrt_lock. */
-static void ipmr_update_thresholds(struct mr_table *mrt, struct mfc_cache *cache,
+static void ipmr_update_thresholds(struct mr_table *mrt, struct mr_mfc *cache,
unsigned char *ttls)
{
int vifi;
@@ -974,11 +974,11 @@ static struct mfc_cache *ipmr_cache_find(struct mr_table *mrt,
.mfc_origin = origin
};
struct rhlist_head *tmp, *list;
- struct mfc_cache *c;
+ struct mr_mfc *c;
list = rhltable_lookup(&mrt->mfc_hash, &arg, ipmr_rht_params);
rhl_for_each_entry_rcu(c, tmp, list, mnode)
- return c;
+ return (struct mfc_cache *)c;
return NULL;
}
@@ -992,12 +992,12 @@ static struct mfc_cache *ipmr_cache_find_any_parent(struct mr_table *mrt,
.mfc_origin = htonl(INADDR_ANY)
};
struct rhlist_head *tmp, *list;
- struct mfc_cache *c;
+ struct mr_mfc *c;
list = rhltable_lookup(&mrt->mfc_hash, &arg, ipmr_rht_params);
rhl_for_each_entry_rcu(c, tmp, list, mnode)
if (c->mfc_un.res.ttls[vifi] < 255)
- return c;
+ return (struct mfc_cache *)c;
return NULL;
}
@@ -1011,20 +1011,22 @@ static struct mfc_cache *ipmr_cache_find_any(struct mr_table *mrt,
.mfc_origin = htonl(INADDR_ANY)
};
struct rhlist_head *tmp, *list;
- struct mfc_cache *c, *proxy;
+ struct mr_mfc *c;
if (mcastgrp == htonl(INADDR_ANY))
goto skip;
list = rhltable_lookup(&mrt->mfc_hash, &arg, ipmr_rht_params);
rhl_for_each_entry_rcu(c, tmp, list, mnode) {
+ struct mfc_cache *proxy;
+
if (c->mfc_un.res.ttls[vifi] < 255)
- return c;
+ return (struct mfc_cache *)c;
/* It's ok if the vifi is part of the static tree */
proxy = ipmr_cache_find_any_parent(mrt, c->mfc_parent);
- if (proxy && proxy->mfc_un.res.ttls[vifi] < 255)
- return c;
+ if (proxy && proxy->_c.mfc_un.res.ttls[vifi] < 255)
+ return (struct mfc_cache *)c;
}
skip:
@@ -1041,12 +1043,12 @@ static struct mfc_cache *ipmr_cache_find_parent(struct mr_table *mrt,
.mfc_origin = origin,
};
struct rhlist_head *tmp, *list;
- struct mfc_cache *c;
+ struct mr_mfc *c;
list = rhltable_lookup(&mrt->mfc_hash, &arg, ipmr_rht_params);
rhl_for_each_entry_rcu(c, tmp, list, mnode)
if (parent == -1 || parent == c->mfc_parent)
- return c;
+ return (struct mfc_cache *)c;
return NULL;
}
@@ -1057,9 +1059,9 @@ static struct mfc_cache *ipmr_cache_alloc(void)
struct mfc_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);
if (c) {
- c->mfc_un.res.last_assert = jiffies - MFC_ASSERT_THRESH - 1;
- c->mfc_un.res.minvif = MAXVIFS;
- refcount_set(&c->mfc_un.res.refcount, 1);
+ c->_c.mfc_un.res.last_assert = jiffies - MFC_ASSERT_THRESH - 1;
+ c->_c.mfc_un.res.minvif = MAXVIFS;
+ refcount_set(&c->_c.mfc_un.res.refcount, 1);
}
return c;
}
@@ -1069,8 +1071,8 @@ static struct mfc_cache *ipmr_cache_alloc_unres(void)
struct mfc_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_ATOMIC);
if (c) {
- skb_queue_head_init(&c->mfc_un.unres.unresolved);
- c->mfc_un.unres.expires = jiffies + 10*HZ;
+ skb_queue_head_init(&c->_c.mfc_un.unres.unresolved);
+ c->_c.mfc_un.unres.expires = jiffies + 10 * HZ;
}
return c;
}
@@ -1083,12 +1085,13 @@ static void ipmr_cache_resolve(struct net *net, struct mr_table *mrt,
struct nlmsgerr *e;
/* Play the pending entries through our router */
- while ((skb = __skb_dequeue(&uc->mfc_un.unres.unresolved))) {
+ while ((skb = __skb_dequeue(&uc->_c.mfc_un.unres.unresolved))) {
if (ip_hdr(skb)->version == 0) {
struct nlmsghdr *nlh = skb_pull(skb,
sizeof(struct iphdr));
- if (__ipmr_fill_mroute(mrt, skb, c, nlmsg_data(nlh)) > 0) {
+ if (__ipmr_fill_mroute(mrt, skb, &c->_c,
+ nlmsg_data(nlh)) > 0) {
nlh->nlmsg_len = skb_tail_pointer(skb) -
(u8 *)nlh;
} else {
@@ -1196,7 +1199,7 @@ static int ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi,
int err;
spin_lock_bh(&mfc_unres_lock);
- list_for_each_entry(c, &mrt->mfc_unres_queue, list) {
+ list_for_each_entry(c, &mrt->mfc_unres_queue, _c.list) {
if (c->mfc_mcastgrp == iph->daddr &&
c->mfc_origin == iph->saddr) {
found = true;
@@ -1215,12 +1218,13 @@ static int ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi,
}
/* Fill in the new cache entry */
- c->mfc_parent = -1;
+ c->_c.mfc_parent = -1;
c->mfc_origin = iph->saddr;
c->mfc_mcastgrp = iph->daddr;
/* Reflect first query at mrouted. */
err = ipmr_cache_report(mrt, skb, vifi, IGMPMSG_NOCACHE);
+
if (err < 0) {
/* If the report failed throw the cache entry
out - Brad Parker
@@ -1233,15 +1237,16 @@ static int ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi,
}
atomic_inc(&mrt->cache_resolve_queue_len);
- list_add(&c->list, &mrt->mfc_unres_queue);
+ list_add(&c->_c.list, &mrt->mfc_unres_queue);
mroute_netlink_event(mrt, c, RTM_NEWROUTE);
if (atomic_read(&mrt->cache_resolve_queue_len) == 1)
- mod_timer(&mrt->ipmr_expire_timer, c->mfc_un.unres.expires);
+ mod_timer(&mrt->ipmr_expire_timer,
+ c->_c.mfc_un.unres.expires);
}
/* See if we can append the packet */
- if (c->mfc_un.unres.unresolved.qlen > 3) {
+ if (c->_c.mfc_un.unres.unresolved.qlen > 3) {
kfree_skb(skb);
err = -ENOBUFS;
} else {
@@ -1249,7 +1254,7 @@ static int ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi,
skb->dev = dev;
skb->skb_iif = dev->ifindex;
}
- skb_queue_tail(&c->mfc_un.unres.unresolved, skb);
+ skb_queue_tail(&c->_c.mfc_un.unres.unresolved, skb);
err = 0;
}
@@ -1271,8 +1276,8 @@ static int ipmr_mfc_delete(struct mr_table *mrt, struct mfcctl *mfc, int parent)
rcu_read_unlock();
if (!c)
return -ENOENT;
- rhltable_remove(&mrt->mfc_hash, &c->mnode, ipmr_rht_params);
- list_del_rcu(&c->list);
+ rhltable_remove(&mrt->mfc_hash, &c->_c.mnode, ipmr_rht_params);
+ list_del_rcu(&c->_c.list);
call_ipmr_mfc_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, c, mrt->id);
mroute_netlink_event(mrt, c, RTM_DELROUTE);
ipmr_cache_put(c);
@@ -1284,6 +1289,7 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
struct mfcctl *mfc, int mrtsock, int parent)
{
struct mfc_cache *uc, *c;
+ struct mr_mfc *_uc;
bool found;
int ret;
@@ -1297,10 +1303,10 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
rcu_read_unlock();
if (c) {
write_lock_bh(&mrt_lock);
- c->mfc_parent = mfc->mfcc_parent;
- ipmr_update_thresholds(mrt, c, mfc->mfcc_ttls);
+ c->_c.mfc_parent = mfc->mfcc_parent;
+ ipmr_update_thresholds(mrt, &c->_c, mfc->mfcc_ttls);
if (!mrtsock)
- c->mfc_flags |= MFC_STATIC;
+ c->_c.mfc_flags |= MFC_STATIC;
write_unlock_bh(&mrt_lock);
call_ipmr_mfc_entry_notifiers(net, FIB_EVENT_ENTRY_REPLACE, c,
mrt->id);
@@ -1318,28 +1324,29 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
c->mfc_origin = mfc->mfcc_origin.s_addr;
c->mfc_mcastgrp = mfc->mfcc_mcastgrp.s_addr;
- c->mfc_parent = mfc->mfcc_parent;
- ipmr_update_thresholds(mrt, c, mfc->mfcc_ttls);
+ c->_c.mfc_parent = mfc->mfcc_parent;
+ ipmr_update_thresholds(mrt, &c->_c, mfc->mfcc_ttls);
if (!mrtsock)
- c->mfc_flags |= MFC_STATIC;
+ c->_c.mfc_flags |= MFC_STATIC;
- ret = rhltable_insert_key(&mrt->mfc_hash, &c->cmparg, &c->mnode,
+ ret = rhltable_insert_key(&mrt->mfc_hash, &c->cmparg, &c->_c.mnode,
ipmr_rht_params);
if (ret) {
pr_err("ipmr: rhtable insert error %d\n", ret);
ipmr_cache_free(c);
return ret;
}
- list_add_tail_rcu(&c->list, &mrt->mfc_cache_list);
+ list_add_tail_rcu(&c->_c.list, &mrt->mfc_cache_list);
/* Check to see if we resolved a queued list. If so we
* need to send on the frames and tidy up.
*/
found = false;
spin_lock_bh(&mfc_unres_lock);
- list_for_each_entry(uc, &mrt->mfc_unres_queue, list) {
+ list_for_each_entry(_uc, &mrt->mfc_unres_queue, list) {
+ uc = (struct mfc_cache *)_uc;
if (uc->mfc_origin == c->mfc_origin &&
uc->mfc_mcastgrp == c->mfc_mcastgrp) {
- list_del(&uc->list);
+ list_del(&_uc->list);
atomic_dec(&mrt->cache_resolve_queue_len);
found = true;
break;
@@ -1362,7 +1369,8 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
static void mroute_clean_tables(struct mr_table *mrt, bool all)
{
struct net *net = read_pnet(&mrt->net);
- struct mfc_cache *c, *tmp;
+ struct mr_mfc *c, *tmp;
+ struct mfc_cache *cache;
LIST_HEAD(list);
int i;
@@ -1380,18 +1388,20 @@ static void mroute_clean_tables(struct mr_table *mrt, bool all)
continue;
rhltable_remove(&mrt->mfc_hash, &c->mnode, ipmr_rht_params);
list_del_rcu(&c->list);
- call_ipmr_mfc_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, c,
+ cache = (struct mfc_cache *)c;
+ call_ipmr_mfc_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, cache,
mrt->id);
- mroute_netlink_event(mrt, c, RTM_DELROUTE);
- ipmr_cache_put(c);
+ mroute_netlink_event(mrt, cache, RTM_DELROUTE);
+ ipmr_cache_put(cache);
}
if (atomic_read(&mrt->cache_resolve_queue_len) != 0) {
spin_lock_bh(&mfc_unres_lock);
list_for_each_entry_safe(c, tmp, &mrt->mfc_unres_queue, list) {
list_del(&c->list);
- mroute_netlink_event(mrt, c, RTM_DELROUTE);
- ipmr_destroy_unres(mrt, c);
+ cache = (struct mfc_cache *)c;
+ mroute_netlink_event(mrt, cache, RTM_DELROUTE);
+ ipmr_destroy_unres(mrt, cache);
}
spin_unlock_bh(&mfc_unres_lock);
}
@@ -1683,9 +1693,9 @@ int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
rcu_read_lock();
c = ipmr_cache_find(mrt, sr.src.s_addr, sr.grp.s_addr);
if (c) {
- sr.pktcnt = c->mfc_un.res.pkt;
- sr.bytecnt = c->mfc_un.res.bytes;
- sr.wrong_if = c->mfc_un.res.wrong_if;
+ sr.pktcnt = c->_c.mfc_un.res.pkt;
+ sr.bytecnt = c->_c.mfc_un.res.bytes;
+ sr.wrong_if = c->_c.mfc_un.res.wrong_if;
rcu_read_unlock();
if (copy_to_user(arg, &sr, sizeof(sr)))
@@ -1757,9 +1767,9 @@ int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
rcu_read_lock();
c = ipmr_cache_find(mrt, sr.src.s_addr, sr.grp.s_addr);
if (c) {
- sr.pktcnt = c->mfc_un.res.pkt;
- sr.bytecnt = c->mfc_un.res.bytes;
- sr.wrong_if = c->mfc_un.res.wrong_if;
+ sr.pktcnt = c->_c.mfc_un.res.pkt;
+ sr.bytecnt = c->_c.mfc_un.res.bytes;
+ sr.wrong_if = c->_c.mfc_un.res.wrong_if;
rcu_read_unlock();
if (copy_to_user(arg, &sr, sizeof(sr)))
@@ -1983,18 +1993,18 @@ static int ipmr_find_vif(struct mr_table *mrt, struct net_device *dev)
/* "local" means that we should preserve one skb (for local delivery) */
static void ip_mr_forward(struct net *net, struct mr_table *mrt,
struct net_device *dev, struct sk_buff *skb,
- struct mfc_cache *cache, int local)
+ struct mfc_cache *c, int local)
{
int true_vifi = ipmr_find_vif(mrt, dev);
int psend = -1;
int vif, ct;
- vif = cache->mfc_parent;
- cache->mfc_un.res.pkt++;
- cache->mfc_un.res.bytes += skb->len;
- cache->mfc_un.res.lastuse = jiffies;
+ vif = c->_c.mfc_parent;
+ c->_c.mfc_un.res.pkt++;
+ c->_c.mfc_un.res.bytes += skb->len;
+ c->_c.mfc_un.res.lastuse = jiffies;
- if (cache->mfc_origin == htonl(INADDR_ANY) && true_vifi >= 0) {
+ if (c->mfc_origin == htonl(INADDR_ANY) && true_vifi >= 0) {
struct mfc_cache *cache_proxy;
/* For an (*,G) entry, we only check that the incomming
@@ -2002,7 +2012,7 @@ static void ip_mr_forward(struct net *net, struct mr_table *mrt,
*/
cache_proxy = ipmr_cache_find_any_parent(mrt, vif);
if (cache_proxy &&
- cache_proxy->mfc_un.res.ttls[true_vifi] < 255)
+ cache_proxy->_c.mfc_un.res.ttls[true_vifi] < 255)
goto forward;
}
@@ -2023,7 +2033,7 @@ static void ip_mr_forward(struct net *net, struct mr_table *mrt,
goto dont_forward;
}
- cache->mfc_un.res.wrong_if++;
+ c->_c.mfc_un.res.wrong_if++;
if (true_vifi >= 0 && mrt->mroute_do_assert &&
/* pimsm uses asserts, when switching from RPT to SPT,
@@ -2032,10 +2042,11 @@ static void ip_mr_forward(struct net *net, struct mr_table *mrt,
* large chunk of pimd to kernel. Ough... --ANK
*/
(mrt->mroute_do_pim ||
- cache->mfc_un.res.ttls[true_vifi] < 255) &&
+ c->_c.mfc_un.res.ttls[true_vifi] < 255) &&
time_after(jiffies,
- cache->mfc_un.res.last_assert + MFC_ASSERT_THRESH)) {
- cache->mfc_un.res.last_assert = jiffies;
+ c->_c.mfc_un.res.last_assert +
+ MFC_ASSERT_THRESH)) {
+ c->_c.mfc_un.res.last_assert = jiffies;
ipmr_cache_report(mrt, skb, true_vifi, IGMPMSG_WRONGVIF);
}
goto dont_forward;
@@ -2046,33 +2057,33 @@ static void ip_mr_forward(struct net *net, struct mr_table *mrt,
mrt->vif_table[vif].bytes_in += skb->len;
/* Forward the frame */
- if (cache->mfc_origin == htonl(INADDR_ANY) &&
- cache->mfc_mcastgrp == htonl(INADDR_ANY)) {
+ if (c->mfc_origin == htonl(INADDR_ANY) &&
+ c->mfc_mcastgrp == htonl(INADDR_ANY)) {
if (true_vifi >= 0 &&
- true_vifi != cache->mfc_parent &&
+ true_vifi != c->_c.mfc_parent &&
ip_hdr(skb)->ttl >
- cache->mfc_un.res.ttls[cache->mfc_parent]) {
+ c->_c.mfc_un.res.ttls[c->_c.mfc_parent]) {
/* It's an (*,*) entry and the packet is not coming from
* the upstream: forward the packet to the upstream
* only.
*/
- psend = cache->mfc_parent;
+ psend = c->_c.mfc_parent;
goto last_forward;
}
goto dont_forward;
}
- for (ct = cache->mfc_un.res.maxvif - 1;
- ct >= cache->mfc_un.res.minvif; ct--) {
+ for (ct = c->_c.mfc_un.res.maxvif - 1;
+ ct >= c->_c.mfc_un.res.minvif; ct--) {
/* For (*,G) entry, don't forward to the incoming interface */
- if ((cache->mfc_origin != htonl(INADDR_ANY) ||
+ if ((c->mfc_origin != htonl(INADDR_ANY) ||
ct != true_vifi) &&
- ip_hdr(skb)->ttl > cache->mfc_un.res.ttls[ct]) {
+ ip_hdr(skb)->ttl > c->_c.mfc_un.res.ttls[ct]) {
if (psend != -1) {
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
if (skb2)
ipmr_queue_xmit(net, mrt, true_vifi,
- skb2, cache, psend);
+ skb2, c, psend);
}
psend = ct;
}
@@ -2084,9 +2095,9 @@ static void ip_mr_forward(struct net *net, struct mr_table *mrt,
if (skb2)
ipmr_queue_xmit(net, mrt, true_vifi, skb2,
- cache, psend);
+ c, psend);
} else {
- ipmr_queue_xmit(net, mrt, true_vifi, skb, cache, psend);
+ ipmr_queue_xmit(net, mrt, true_vifi, skb, c, psend);
return;
}
}
@@ -2285,7 +2296,7 @@ static int pim_rcv(struct sk_buff *skb)
#endif
static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
- struct mfc_cache *c, struct rtmsg *rtm)
+ struct mr_mfc *c, struct rtmsg *rtm)
{
struct rta_mfc_stats mfcs;
struct nlattr *mp_attr;
@@ -2401,7 +2412,7 @@ int ipmr_get_route(struct net *net, struct sk_buff *skb,
}
read_lock(&mrt_lock);
- err = __ipmr_fill_mroute(mrt, skb, cache, rtm);
+ err = __ipmr_fill_mroute(mrt, skb, &cache->_c, rtm);
read_unlock(&mrt_lock);
rcu_read_unlock();
return err;
@@ -2429,7 +2440,7 @@ static int ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
goto nla_put_failure;
rtm->rtm_type = RTN_MULTICAST;
rtm->rtm_scope = RT_SCOPE_UNIVERSE;
- if (c->mfc_flags & MFC_STATIC)
+ if (c->_c.mfc_flags & MFC_STATIC)
rtm->rtm_protocol = RTPROT_STATIC;
else
rtm->rtm_protocol = RTPROT_MROUTED;
@@ -2438,7 +2449,7 @@ static int ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
if (nla_put_in_addr(skb, RTA_SRC, c->mfc_origin) ||
nla_put_in_addr(skb, RTA_DST, c->mfc_mcastgrp))
goto nla_put_failure;
- err = __ipmr_fill_mroute(mrt, skb, c, rtm);
+ err = __ipmr_fill_mroute(mrt, skb, &c->_c, rtm);
/* do not break the dump if cache is unresolved */
if (err < 0 && err != -ENOENT)
goto nla_put_failure;
@@ -2479,7 +2490,8 @@ static void mroute_netlink_event(struct mr_table *mrt, struct mfc_cache *mfc,
struct sk_buff *skb;
int err = -ENOBUFS;
- skb = nlmsg_new(mroute_msgsize(mfc->mfc_parent >= MAXVIFS, mrt->maxvif),
+ skb = nlmsg_new(mroute_msgsize(mfc->_c.mfc_parent >= MAXVIFS,
+ mrt->maxvif),
GFP_ATOMIC);
if (!skb)
goto errout;
@@ -2624,10 +2636,10 @@ static int ipmr_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh,
static int ipmr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
{
struct net *net = sock_net(skb->sk);
- struct mr_table *mrt;
- struct mfc_cache *mfc;
unsigned int t = 0, s_t;
unsigned int e = 0, s_e;
+ struct mr_table *mrt;
+ struct mr_mfc *mfc;
s_t = cb->args[0];
s_e = cb->args[1];
@@ -2642,8 +2654,8 @@ static int ipmr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
if (ipmr_fill_mroute(mrt, skb,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
- mfc, RTM_NEWROUTE,
- NLM_F_MULTI) < 0)
+ (struct mfc_cache *)mfc,
+ RTM_NEWROUTE, NLM_F_MULTI) < 0)
goto done;
next_entry:
e++;
@@ -2658,8 +2670,8 @@ static int ipmr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
if (ipmr_fill_mroute(mrt, skb,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
- mfc, RTM_NEWROUTE,
- NLM_F_MULTI) < 0) {
+ (struct mfc_cache *)mfc,
+ RTM_NEWROUTE, NLM_F_MULTI) < 0) {
spin_unlock_bh(&mfc_unres_lock);
goto done;
}
@@ -3051,20 +3063,21 @@ static struct mfc_cache *ipmr_mfc_seq_idx(struct net *net,
struct ipmr_mfc_iter *it, loff_t pos)
{
struct mr_table *mrt = it->mrt;
- struct mfc_cache *mfc;
+ struct mr_mfc *mfc;
rcu_read_lock();
it->cache = &mrt->mfc_cache_list;
list_for_each_entry_rcu(mfc, &mrt->mfc_cache_list, list)
if (pos-- == 0)
- return mfc;
+ return (struct mfc_cache *)mfc;
rcu_read_unlock();
spin_lock_bh(&mfc_unres_lock);
it->cache = &mrt->mfc_unres_queue;
list_for_each_entry(mfc, it->cache, list)
if (pos-- == 0)
- return mfc;
+ return (struct mfc_cache *)mfc;
+
spin_unlock_bh(&mfc_unres_lock);
it->cache = NULL;
@@ -3100,8 +3113,9 @@ static void *ipmr_mfc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
if (v == SEQ_START_TOKEN)
return ipmr_mfc_seq_idx(net, seq->private, 0);
- if (mfc->list.next != it->cache)
- return list_entry(mfc->list.next, struct mfc_cache, list);
+ if (mfc->_c.list.next != it->cache)
+ return (struct mfc_cache *)(list_entry(mfc->_c.list.next,
+ struct mr_mfc, list));
if (it->cache == &mrt->mfc_unres_queue)
goto end_of_list;
@@ -3112,7 +3126,9 @@ static void *ipmr_mfc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
spin_lock_bh(&mfc_unres_lock);
if (!list_empty(it->cache))
- return list_first_entry(it->cache, struct mfc_cache, list);
+ return (struct mfc_cache *)(list_first_entry(it->cache,
+ struct mr_mfc,
+ list));
end_of_list:
spin_unlock_bh(&mfc_unres_lock);
@@ -3147,20 +3163,20 @@ static int ipmr_mfc_seq_show(struct seq_file *seq, void *v)
seq_printf(seq, "%08X %08X %-3hd",
(__force u32) mfc->mfc_mcastgrp,
(__force u32) mfc->mfc_origin,
- mfc->mfc_parent);
+ mfc->_c.mfc_parent);
if (it->cache != &mrt->mfc_unres_queue) {
seq_printf(seq, " %8lu %8lu %8lu",
- mfc->mfc_un.res.pkt,
- mfc->mfc_un.res.bytes,
- mfc->mfc_un.res.wrong_if);
- for (n = mfc->mfc_un.res.minvif;
- n < mfc->mfc_un.res.maxvif; n++) {
+ mfc->_c.mfc_un.res.pkt,
+ mfc->_c.mfc_un.res.bytes,
+ mfc->_c.mfc_un.res.wrong_if);
+ for (n = mfc->_c.mfc_un.res.minvif;
+ n < mfc->_c.mfc_un.res.maxvif; n++) {
if (VIF_EXISTS(mrt, n) &&
- mfc->mfc_un.res.ttls[n] < 255)
+ mfc->_c.mfc_un.res.ttls[n] < 255)
seq_printf(seq,
" %2d:%-3d",
- n, mfc->mfc_un.res.ttls[n]);
+ n, mfc->_c.mfc_un.res.ttls[n]);
}
} else {
/* unresolved mfc_caches don't contain
@@ -3219,7 +3235,7 @@ static int ipmr_dump(struct net *net, struct notifier_block *nb)
ipmr_for_each_table(mrt, net) {
struct vif_device *v = &mrt->vif_table[0];
- struct mfc_cache *mfc;
+ struct mr_mfc *mfc;
int vifi;
/* Notifiy on table VIF entries */
@@ -3236,7 +3252,8 @@ static int ipmr_dump(struct net *net, struct notifier_block *nb)
/* Notify on table MFC entries */
list_for_each_entry_rcu(mfc, &mrt->mfc_cache_list, list)
call_ipmr_mfc_entry_notifier(nb, net,
- FIB_EVENT_ENTRY_ADD, mfc,
+ FIB_EVENT_ENTRY_ADD,
+ (struct mfc_cache *)mfc,
mrt->id);
}