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-rw-r--r--include/net/ip_vs.h3
-rw-r--r--include/uapi/linux/ip_vs.h3
-rw-r--r--net/netfilter/ipvs/ip_vs_ctl.c45
3 files changed, 44 insertions, 7 deletions
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 624a8a54806d..b7e2b624d58e 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -648,6 +648,9 @@ struct ip_vs_dest_user_kern {
/* thresholds for active connections */
u32 u_threshold; /* upper threshold */
u32 l_threshold; /* lower threshold */
+
+ /* Address family of addr */
+ u16 af;
};
diff --git a/include/uapi/linux/ip_vs.h b/include/uapi/linux/ip_vs.h
index fbcffe8041f7..cabe95d5b461 100644
--- a/include/uapi/linux/ip_vs.h
+++ b/include/uapi/linux/ip_vs.h
@@ -384,6 +384,9 @@ enum {
IPVS_DEST_ATTR_PERSIST_CONNS, /* persistent connections */
IPVS_DEST_ATTR_STATS, /* nested attribute for dest stats */
+
+ IPVS_DEST_ATTR_ADDR_FAMILY, /* Address family of address */
+
__IPVS_DEST_ATTR_MAX,
};
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index bd2b208ba56c..594cec7ebc43 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -816,6 +816,8 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
dest->u_threshold = udest->u_threshold;
dest->l_threshold = udest->l_threshold;
+ dest->af = udest->af;
+
spin_lock_bh(&dest->dst_lock);
__ip_vs_dst_cache_reset(dest);
spin_unlock_bh(&dest->dst_lock);
@@ -846,8 +848,12 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest,
EnterFunction(2);
+ /* Temporary for consistency */
+ if (udest->af != svc->af)
+ return -EINVAL;
+
#ifdef CONFIG_IP_VS_IPV6
- if (svc->af == AF_INET6) {
+ if (udest->af == AF_INET6) {
atype = ipv6_addr_type(&udest->addr.in6);
if ((!(atype & IPV6_ADDR_UNICAST) ||
atype & IPV6_ADDR_LINKLOCAL) &&
@@ -875,12 +881,12 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest,
u64_stats_init(&ip_vs_dest_stats->syncp);
}
- dest->af = svc->af;
+ dest->af = udest->af;
dest->protocol = svc->protocol;
dest->vaddr = svc->addr;
dest->vport = svc->port;
dest->vfwmark = svc->fwmark;
- ip_vs_addr_copy(svc->af, &dest->addr, &udest->addr);
+ ip_vs_addr_copy(udest->af, &dest->addr, &udest->addr);
dest->port = udest->port;
atomic_set(&dest->activeconns, 0);
@@ -928,7 +934,7 @@ ip_vs_add_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
return -ERANGE;
}
- ip_vs_addr_copy(svc->af, &daddr, &udest->addr);
+ ip_vs_addr_copy(udest->af, &daddr, &udest->addr);
/* We use function that requires RCU lock */
rcu_read_lock();
@@ -949,7 +955,7 @@ ip_vs_add_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
if (dest != NULL) {
IP_VS_DBG_BUF(3, "Get destination %s:%u from trash, "
"dest->refcnt=%d, service %u/%s:%u\n",
- IP_VS_DBG_ADDR(svc->af, &daddr), ntohs(dport),
+ IP_VS_DBG_ADDR(udest->af, &daddr), ntohs(dport),
atomic_read(&dest->refcnt),
dest->vfwmark,
IP_VS_DBG_ADDR(svc->af, &dest->vaddr),
@@ -992,7 +998,7 @@ ip_vs_edit_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
return -ERANGE;
}
- ip_vs_addr_copy(svc->af, &daddr, &udest->addr);
+ ip_vs_addr_copy(udest->af, &daddr, &udest->addr);
/* We use function that requires RCU lock */
rcu_read_lock();
@@ -2244,6 +2250,7 @@ static void ip_vs_copy_udest_compat(struct ip_vs_dest_user_kern *udest,
udest->weight = udest_compat->weight;
udest->u_threshold = udest_compat->u_threshold;
udest->l_threshold = udest_compat->l_threshold;
+ udest->af = AF_INET;
}
static int
@@ -2480,6 +2487,12 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get,
if (count >= get->num_dests)
break;
+ /* Cannot expose heterogeneous members via sockopt
+ * interface
+ */
+ if (dest->af != svc->af)
+ continue;
+
entry.addr = dest->addr.ip;
entry.port = dest->port;
entry.conn_flags = atomic_read(&dest->conn_flags);
@@ -2777,6 +2790,7 @@ static const struct nla_policy ip_vs_dest_policy[IPVS_DEST_ATTR_MAX + 1] = {
[IPVS_DEST_ATTR_INACT_CONNS] = { .type = NLA_U32 },
[IPVS_DEST_ATTR_PERSIST_CONNS] = { .type = NLA_U32 },
[IPVS_DEST_ATTR_STATS] = { .type = NLA_NESTED },
+ [IPVS_DEST_ATTR_ADDR_FAMILY] = { .type = NLA_U16 },
};
static int ip_vs_genl_fill_stats(struct sk_buff *skb, int container_type,
@@ -3032,7 +3046,8 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
nla_put_u32(skb, IPVS_DEST_ATTR_INACT_CONNS,
atomic_read(&dest->inactconns)) ||
nla_put_u32(skb, IPVS_DEST_ATTR_PERSIST_CONNS,
- atomic_read(&dest->persistconns)))
+ atomic_read(&dest->persistconns)) ||
+ nla_put_u16(skb, IPVS_DEST_ATTR_ADDR_FAMILY, dest->af))
goto nla_put_failure;
if (ip_vs_genl_fill_stats(skb, IPVS_DEST_ATTR_STATS, &dest->stats))
goto nla_put_failure;
@@ -3113,6 +3128,7 @@ static int ip_vs_genl_parse_dest(struct ip_vs_dest_user_kern *udest,
{
struct nlattr *attrs[IPVS_DEST_ATTR_MAX + 1];
struct nlattr *nla_addr, *nla_port;
+ struct nlattr *nla_addr_family;
/* Parse mandatory identifying destination fields first */
if (nla == NULL ||
@@ -3121,6 +3137,7 @@ static int ip_vs_genl_parse_dest(struct ip_vs_dest_user_kern *udest,
nla_addr = attrs[IPVS_DEST_ATTR_ADDR];
nla_port = attrs[IPVS_DEST_ATTR_PORT];
+ nla_addr_family = attrs[IPVS_DEST_ATTR_ADDR_FAMILY];
if (!(nla_addr && nla_port))
return -EINVAL;
@@ -3130,6 +3147,11 @@ static int ip_vs_genl_parse_dest(struct ip_vs_dest_user_kern *udest,
nla_memcpy(&udest->addr, nla_addr, sizeof(udest->addr));
udest->port = nla_get_be16(nla_port);
+ if (nla_addr_family)
+ udest->af = nla_get_u16(nla_addr_family);
+ else
+ udest->af = 0;
+
/* If a full entry was requested, check for the additional fields */
if (full_entry) {
struct nlattr *nla_fwd, *nla_weight, *nla_u_thresh,
@@ -3357,6 +3379,15 @@ static int ip_vs_genl_set_cmd(struct sk_buff *skb, struct genl_info *info)
need_full_dest);
if (ret)
goto out;
+
+ /* Old protocols did not allow the user to specify address
+ * family, so we set it to zero instead. We also didn't
+ * allow heterogeneous pools in the old code, so it's safe
+ * to assume that this will have the same address family as
+ * the service.
+ */
+ if (udest.af == 0)
+ udest.af = svc->af;
}
switch (cmd) {
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-06-21 22:03:28 +0200