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-rw-r--r--net/ipv4/fib_semantics.c13
-rw-r--r--net/ipv4/igmp.c12
-rw-r--r--net/ipv4/ip_sockglue.c45
-rw-r--r--net/ipv4/netfilter/nf_defrag_ipv4.c5
-rw-r--r--net/ipv4/sysctl_net_ipv4.c4
-rw-r--r--net/ipv4/tcp_ipv4.c2
-rw-r--r--net/ipv4/tcp_minisocks.c3
7 files changed, 50 insertions, 34 deletions
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 3e87447e65c7..d97268e8ff10 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -923,14 +923,21 @@ static bool fib_valid_prefsrc(struct fib_config *cfg, __be32 fib_prefsrc)
if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst ||
fib_prefsrc != cfg->fc_dst) {
u32 tb_id = cfg->fc_table;
+ int rc;
if (tb_id == RT_TABLE_MAIN)
tb_id = RT_TABLE_LOCAL;
- if (inet_addr_type_table(cfg->fc_nlinfo.nl_net,
- fib_prefsrc, tb_id) != RTN_LOCAL) {
- return false;
+ rc = inet_addr_type_table(cfg->fc_nlinfo.nl_net,
+ fib_prefsrc, tb_id);
+
+ if (rc != RTN_LOCAL && tb_id != RT_TABLE_LOCAL) {
+ rc = inet_addr_type_table(cfg->fc_nlinfo.nl_net,
+ fib_prefsrc, RT_TABLE_LOCAL);
}
+
+ if (rc != RTN_LOCAL)
+ return false;
}
return true;
}
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 64aaf3522a59..6baf36e11808 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2392,11 +2392,11 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
struct ip_sf_socklist *psl;
struct net *net = sock_net(sk);
+ ASSERT_RTNL();
+
if (!ipv4_is_multicast(addr))
return -EINVAL;
- rtnl_lock();
-
imr.imr_multiaddr.s_addr = msf->imsf_multiaddr;
imr.imr_address.s_addr = msf->imsf_interface;
imr.imr_ifindex = 0;
@@ -2417,7 +2417,6 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
goto done;
msf->imsf_fmode = pmc->sfmode;
psl = rtnl_dereference(pmc->sflist);
- rtnl_unlock();
if (!psl) {
len = 0;
count = 0;
@@ -2436,7 +2435,6 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
return -EFAULT;
return 0;
done:
- rtnl_unlock();
return err;
}
@@ -2450,6 +2448,8 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
struct inet_sock *inet = inet_sk(sk);
struct ip_sf_socklist *psl;
+ ASSERT_RTNL();
+
psin = (struct sockaddr_in *)&gsf->gf_group;
if (psin->sin_family != AF_INET)
return -EINVAL;
@@ -2457,8 +2457,6 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
if (!ipv4_is_multicast(addr))
return -EINVAL;
- rtnl_lock();
-
err = -EADDRNOTAVAIL;
for_each_pmc_rtnl(inet, pmc) {
@@ -2470,7 +2468,6 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
goto done;
gsf->gf_fmode = pmc->sfmode;
psl = rtnl_dereference(pmc->sflist);
- rtnl_unlock();
count = psl ? psl->sl_count : 0;
copycount = count < gsf->gf_numsrc ? count : gsf->gf_numsrc;
gsf->gf_numsrc = count;
@@ -2490,7 +2487,6 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
}
return 0;
done:
- rtnl_unlock();
return err;
}
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index c3c359ad66e3..5f73a7c03e27 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1251,11 +1251,22 @@ EXPORT_SYMBOL(compat_ip_setsockopt);
* the _received_ ones. The set sets the _sent_ ones.
*/
+static bool getsockopt_needs_rtnl(int optname)
+{
+ switch (optname) {
+ case IP_MSFILTER:
+ case MCAST_MSFILTER:
+ return true;
+ }
+ return false;
+}
+
static int do_ip_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen, unsigned int flags)
{
struct inet_sock *inet = inet_sk(sk);
- int val;
+ bool needs_rtnl = getsockopt_needs_rtnl(optname);
+ int val, err = 0;
int len;
if (level != SOL_IP)
@@ -1269,6 +1280,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
if (len < 0)
return -EINVAL;
+ if (needs_rtnl)
+ rtnl_lock();
lock_sock(sk);
switch (optname) {
@@ -1386,39 +1399,35 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
case IP_MSFILTER:
{
struct ip_msfilter msf;
- int err;
if (len < IP_MSFILTER_SIZE(0)) {
- release_sock(sk);
- return -EINVAL;
+ err = -EINVAL;
+ goto out;
}
if (copy_from_user(&msf, optval, IP_MSFILTER_SIZE(0))) {
- release_sock(sk);
- return -EFAULT;
+ err = -EFAULT;
+ goto out;
}
err = ip_mc_msfget(sk, &msf,
(struct ip_msfilter __user *)optval, optlen);
- release_sock(sk);
- return err;
+ goto out;
}
case MCAST_MSFILTER:
{
struct group_filter gsf;
- int err;
if (len < GROUP_FILTER_SIZE(0)) {
- release_sock(sk);
- return -EINVAL;
+ err = -EINVAL;
+ goto out;
}
if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0))) {
- release_sock(sk);
- return -EFAULT;
+ err = -EFAULT;
+ goto out;
}
err = ip_mc_gsfget(sk, &gsf,
(struct group_filter __user *)optval,
optlen);
- release_sock(sk);
- return err;
+ goto out;
}
case IP_MULTICAST_ALL:
val = inet->mc_all;
@@ -1485,6 +1494,12 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
return -EFAULT;
}
return 0;
+
+out:
+ release_sock(sk);
+ if (needs_rtnl)
+ rtnl_unlock();
+ return err;
}
int ip_getsockopt(struct sock *sk, int level,
diff --git a/net/ipv4/netfilter/nf_defrag_ipv4.c b/net/ipv4/netfilter/nf_defrag_ipv4.c
index 0e5591c2ee9f..6fb869f646bf 100644
--- a/net/ipv4/netfilter/nf_defrag_ipv4.c
+++ b/net/ipv4/netfilter/nf_defrag_ipv4.c
@@ -67,10 +67,9 @@ static unsigned int ipv4_conntrack_defrag(void *priv,
const struct nf_hook_state *state)
{
struct sock *sk = skb->sk;
- struct inet_sock *inet = inet_sk(skb->sk);
- if (sk && (sk->sk_family == PF_INET) &&
- inet->nodefrag)
+ if (sk && sk_fullsock(sk) && (sk->sk_family == PF_INET) &&
+ inet_sk(sk)->nodefrag)
return NF_ACCEPT;
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 25300c5e283b..a0bd7a55193e 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -48,14 +48,14 @@ static void set_local_port_range(struct net *net, int range[2])
{
bool same_parity = !((range[0] ^ range[1]) & 1);
- write_seqlock(&net->ipv4.ip_local_ports.lock);
+ write_seqlock_bh(&net->ipv4.ip_local_ports.lock);
if (same_parity && !net->ipv4.ip_local_ports.warned) {
net->ipv4.ip_local_ports.warned = true;
pr_err_ratelimited("ip_local_port_range: prefer different parity for start/end values.\n");
}
net->ipv4.ip_local_ports.range[0] = range[0];
net->ipv4.ip_local_ports.range[1] = range[1];
- write_sequnlock(&net->ipv4.ip_local_ports.lock);
+ write_sequnlock_bh(&net->ipv4.ip_local_ports.lock);
}
/* Validate changes from /proc interface. */
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 1c2648bbac4b..950e28c0cdf2 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1326,6 +1326,8 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
if (__inet_inherit_port(sk, newsk) < 0)
goto put_and_exit;
*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
+ if (*own_req)
+ tcp_move_syn(newtp, req);
return newsk;
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 3575dd1e5b67..ac6b1961ffeb 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -551,9 +551,6 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
newtp->rack.mstamp.v64 = 0;
newtp->rack.advanced = 0;
- newtp->saved_syn = req->saved_syn;
- req->saved_syn = NULL;
-
TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_PASSIVEOPENS);
}
return newsk;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 05:17:12 +0000