net: ipv4: Plumb extack through route add functions
Plumb extack argument down to route add functions.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 83e3ed2..511edff 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -594,7 +594,8 @@
} else {
tb = fib_new_table(net, cfg.fc_table);
if (tb)
- err = fib_table_insert(net, tb, &cfg);
+ err = fib_table_insert(net, tb,
+ &cfg, NULL);
else
err = -ENOBUFS;
}
@@ -626,14 +627,15 @@
};
static int rtm_to_fib_config(struct net *net, struct sk_buff *skb,
- struct nlmsghdr *nlh, struct fib_config *cfg)
+ struct nlmsghdr *nlh, struct fib_config *cfg,
+ struct netlink_ext_ack *extack)
{
struct nlattr *attr;
int err, remaining;
struct rtmsg *rtm;
err = nlmsg_validate(nlh, sizeof(*rtm), RTA_MAX, rtm_ipv4_policy,
- NULL);
+ extack);
if (err < 0)
goto errout;
@@ -718,7 +720,7 @@
struct fib_table *tb;
int err;
- err = rtm_to_fib_config(net, skb, nlh, &cfg);
+ err = rtm_to_fib_config(net, skb, nlh, &cfg, extack);
if (err < 0)
goto errout;
@@ -741,7 +743,7 @@
struct fib_table *tb;
int err;
- err = rtm_to_fib_config(net, skb, nlh, &cfg);
+ err = rtm_to_fib_config(net, skb, nlh, &cfg, extack);
if (err < 0)
goto errout;
@@ -751,7 +753,7 @@
goto errout;
}
- err = fib_table_insert(net, tb, &cfg);
+ err = fib_table_insert(net, tb, &cfg, extack);
errout:
return err;
}
@@ -845,7 +847,7 @@
cfg.fc_scope = RT_SCOPE_HOST;
if (cmd == RTM_NEWROUTE)
- fib_table_insert(net, tb, &cfg);
+ fib_table_insert(net, tb, &cfg, NULL);
else
fib_table_delete(net, tb, &cfg);
}
diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index 9c02920..2704e08 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -28,7 +28,8 @@
/* Exported by fib_semantics.c */
void fib_release_info(struct fib_info *);
-struct fib_info *fib_create_info(struct fib_config *cfg);
+struct fib_info *fib_create_info(struct fib_config *cfg,
+ struct netlink_ext_ack *extack);
int fib_nh_match(struct fib_config *cfg, struct fib_info *fi);
int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, u32 tb_id,
u8 type, __be32 dst, int dst_len, u8 tos, struct fib_info *fi,
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index da449dd..8587d1b 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -454,7 +454,8 @@
#ifdef CONFIG_IP_ROUTE_MULTIPATH
-static int fib_count_nexthops(struct rtnexthop *rtnh, int remaining)
+static int fib_count_nexthops(struct rtnexthop *rtnh, int remaining,
+ struct netlink_ext_ack *extack)
{
int nhs = 0;
@@ -468,7 +469,8 @@
}
static int fib_get_nhs(struct fib_info *fi, struct rtnexthop *rtnh,
- int remaining, struct fib_config *cfg)
+ int remaining, struct fib_config *cfg,
+ struct netlink_ext_ack *extack)
{
int ret;
@@ -714,7 +716,7 @@
* |-> {local prefix} (terminal node)
*/
static int fib_check_nh(struct fib_config *cfg, struct fib_info *fi,
- struct fib_nh *nh)
+ struct fib_nh *nh, struct netlink_ext_ack *extack)
{
int err = 0;
struct net *net;
@@ -797,7 +799,6 @@
if (nh->nh_flags & (RTNH_F_PERVASIVE | RTNH_F_ONLINK))
return -EINVAL;
-
rcu_read_lock();
err = -ENODEV;
in_dev = inetdev_by_index(net, nh->nh_oif);
@@ -980,7 +981,8 @@
return 0;
}
-struct fib_info *fib_create_info(struct fib_config *cfg)
+struct fib_info *fib_create_info(struct fib_config *cfg,
+ struct netlink_ext_ack *extack)
{
int err;
struct fib_info *fi = NULL;
@@ -1000,7 +1002,7 @@
#ifdef CONFIG_IP_ROUTE_MULTIPATH
if (cfg->fc_mp) {
- nhs = fib_count_nexthops(cfg->fc_mp, cfg->fc_mp_len);
+ nhs = fib_count_nexthops(cfg->fc_mp, cfg->fc_mp_len, extack);
if (nhs == 0)
goto err_inval;
}
@@ -1062,7 +1064,7 @@
if (cfg->fc_mp) {
#ifdef CONFIG_IP_ROUTE_MULTIPATH
- err = fib_get_nhs(fi, cfg->fc_mp, cfg->fc_mp_len, cfg);
+ err = fib_get_nhs(fi, cfg->fc_mp, cfg->fc_mp_len, cfg, extack);
if (err != 0)
goto failure;
if (cfg->fc_oif && fi->fib_nh->nh_oif != cfg->fc_oif)
@@ -1129,7 +1131,9 @@
struct fib_nh *nh = fi->fib_nh;
/* Local address is added. */
- if (nhs != 1 || nh->nh_gw)
+ if (nhs != 1)
+ goto err_inval;
+ if (nh->nh_gw)
goto err_inval;
nh->nh_scope = RT_SCOPE_NOWHERE;
nh->nh_dev = dev_get_by_index(net, fi->fib_nh->nh_oif);
@@ -1140,7 +1144,7 @@
int linkdown = 0;
change_nexthops(fi) {
- err = fib_check_nh(cfg, fi, nexthop_nh);
+ err = fib_check_nh(cfg, fi, nexthop_nh, extack);
if (err != 0)
goto failure;
if (nexthop_nh->nh_flags & RTNH_F_LINKDOWN)
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 51182ff..6d0f6c79 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1101,7 +1101,7 @@
/* Caller must hold RTNL. */
int fib_table_insert(struct net *net, struct fib_table *tb,
- struct fib_config *cfg)
+ struct fib_config *cfg, struct netlink_ext_ack *extack)
{
enum fib_event_type event = FIB_EVENT_ENTRY_ADD;
struct trie *t = (struct trie *)tb->tb_data;
@@ -1125,7 +1125,7 @@
if ((plen < KEYLENGTH) && (key << plen))
return -EINVAL;
- fi = fib_create_info(cfg);
+ fi = fib_create_info(cfg, extack);
if (IS_ERR(fi)) {
err = PTR_ERR(fi);
goto err;