summaryrefslogtreecommitdiff
path: root/net/ipv4
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/esp4.c2
-rw-r--r--net/ipv4/fib_trie.c5
-rw-r--r--net/ipv4/ip_gre.c2
-rw-r--r--net/ipv4/ip_output.c8
-rw-r--r--net/ipv4/ip_tunnel_core.c4
-rw-r--r--net/ipv4/ipip.c5
-rw-r--r--net/ipv4/netfilter/arptable_filter.c2
-rw-r--r--net/ipv4/netfilter/iptable_filter.c2
-rw-r--r--net/ipv4/netfilter/iptable_mangle.c2
-rw-r--r--net/ipv4/netfilter/iptable_nat.c2
-rw-r--r--net/ipv4/netfilter/iptable_raw.c2
-rw-r--r--net/ipv4/netfilter/iptable_security.c2
-rw-r--r--net/ipv4/proc.c2
-rw-r--r--net/ipv4/raw.c3
-rw-r--r--net/ipv4/tcp.c7
-rw-r--r--net/ipv4/tcp_cubic.c12
-rw-r--r--net/ipv4/tcp_input.c9
-rw-r--r--net/ipv4/tcp_memcontrol.c12
-rw-r--r--net/ipv4/tcp_output.c4
-rw-r--r--net/ipv4/xfrm4_output.c16
-rw-r--r--net/ipv4/xfrm4_state.c1
21 files changed, 56 insertions, 48 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index ab3d814bc80a..109ee89f123e 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -477,7 +477,7 @@ static u32 esp4_get_mtu(struct xfrm_state *x, int mtu)
}
return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
- net_adj) & ~(align - 1)) + (net_adj - 2);
+ net_adj) & ~(align - 1)) + net_adj - 2;
}
static void esp4_err(struct sk_buff *skb, u32 info)
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 108a1e9c9eac..3df6d3edb2a1 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -71,7 +71,6 @@
#include <linux/init.h>
#include <linux/list.h>
#include <linux/slab.h>
-#include <linux/prefetch.h>
#include <linux/export.h>
#include <net/net_namespace.h>
#include <net/ip.h>
@@ -1761,10 +1760,8 @@ static struct leaf *leaf_walk_rcu(struct tnode *p, struct rt_trie_node *c)
if (!c)
continue;
- if (IS_LEAF(c)) {
- prefetch(rcu_dereference_rtnl(p->child[idx]));
+ if (IS_LEAF(c))
return (struct leaf *) c;
- }
/* Rescan start scanning in new node */
p = (struct tnode *) c;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 1f6eab66f7ce..8d6939eeb492 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -383,7 +383,7 @@ static int ipgre_header(struct sk_buff *skb, struct net_device *dev,
if (daddr)
memcpy(&iph->daddr, daddr, 4);
if (iph->daddr)
- return t->hlen;
+ return t->hlen + sizeof(*iph);
return -(t->hlen + sizeof(*iph));
}
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 4bcabf3ab4ca..9ee17e3d11c3 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -211,14 +211,6 @@ static inline int ip_finish_output2(struct sk_buff *skb)
return -EINVAL;
}
-static inline int ip_skb_dst_mtu(struct sk_buff *skb)
-{
- struct inet_sock *inet = skb->sk ? inet_sk(skb->sk) : NULL;
-
- return (inet && inet->pmtudisc == IP_PMTUDISC_PROBE) ?
- skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
-}
-
static int ip_finish_output(struct sk_buff *skb)
{
#if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index 7167b08977df..850525b34899 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -76,9 +76,7 @@ int iptunnel_xmit(struct net *net, struct rtable *rt,
iph->daddr = dst;
iph->saddr = src;
iph->ttl = ttl;
- tunnel_ip_select_ident(skb,
- (const struct iphdr *)skb_inner_network_header(skb),
- &rt->dst);
+ __ip_select_ident(iph, &rt->dst, (skb_shinfo(skb)->gso_segs ?: 1) - 1);
err = ip_local_out(skb);
if (unlikely(net_xmit_eval(err)))
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 51fc2a1dcdd3..b3ac3c3f6219 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -190,15 +190,14 @@ static int ipip_rcv(struct sk_buff *skb)
struct ip_tunnel *tunnel;
const struct iphdr *iph;
- if (iptunnel_pull_header(skb, 0, tpi.proto))
- goto drop;
-
iph = ip_hdr(skb);
tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
iph->saddr, iph->daddr, 0);
if (tunnel) {
if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
goto drop;
+ if (iptunnel_pull_header(skb, 0, tpi.proto))
+ goto drop;
return ip_tunnel_rcv(tunnel, skb, &tpi, log_ecn_error);
}
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index eadab1ed6500..a865f6f94013 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -48,7 +48,7 @@ static int __net_init arptable_filter_net_init(struct net *net)
net->ipv4.arptable_filter =
arpt_register_table(net, &packet_filter, repl);
kfree(repl);
- return PTR_RET(net->ipv4.arptable_filter);
+ return PTR_ERR_OR_ZERO(net->ipv4.arptable_filter);
}
static void __net_exit arptable_filter_net_exit(struct net *net)
diff --git a/net/ipv4/netfilter/iptable_filter.c b/net/ipv4/netfilter/iptable_filter.c
index 6b3da5cf54e9..50af5b45c050 100644
--- a/net/ipv4/netfilter/iptable_filter.c
+++ b/net/ipv4/netfilter/iptable_filter.c
@@ -69,7 +69,7 @@ static int __net_init iptable_filter_net_init(struct net *net)
net->ipv4.iptable_filter =
ipt_register_table(net, &packet_filter, repl);
kfree(repl);
- return PTR_RET(net->ipv4.iptable_filter);
+ return PTR_ERR_OR_ZERO(net->ipv4.iptable_filter);
}
static void __net_exit iptable_filter_net_exit(struct net *net)
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c
index cba5658ec82c..0d8cd82e0fad 100644
--- a/net/ipv4/netfilter/iptable_mangle.c
+++ b/net/ipv4/netfilter/iptable_mangle.c
@@ -107,7 +107,7 @@ static int __net_init iptable_mangle_net_init(struct net *net)
net->ipv4.iptable_mangle =
ipt_register_table(net, &packet_mangler, repl);
kfree(repl);
- return PTR_RET(net->ipv4.iptable_mangle);
+ return PTR_ERR_OR_ZERO(net->ipv4.iptable_mangle);
}
static void __net_exit iptable_mangle_net_exit(struct net *net)
diff --git a/net/ipv4/netfilter/iptable_nat.c b/net/ipv4/netfilter/iptable_nat.c
index 6383273d54e1..683bfaffed65 100644
--- a/net/ipv4/netfilter/iptable_nat.c
+++ b/net/ipv4/netfilter/iptable_nat.c
@@ -292,7 +292,7 @@ static int __net_init iptable_nat_net_init(struct net *net)
return -ENOMEM;
net->ipv4.nat_table = ipt_register_table(net, &nf_nat_ipv4_table, repl);
kfree(repl);
- return PTR_RET(net->ipv4.nat_table);
+ return PTR_ERR_OR_ZERO(net->ipv4.nat_table);
}
static void __net_exit iptable_nat_net_exit(struct net *net)
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index 03d9696d3c6e..1f82aea11df6 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/net/ipv4/netfilter/iptable_raw.c
@@ -48,7 +48,7 @@ static int __net_init iptable_raw_net_init(struct net *net)
net->ipv4.iptable_raw =
ipt_register_table(net, &packet_raw, repl);
kfree(repl);
- return PTR_RET(net->ipv4.iptable_raw);
+ return PTR_ERR_OR_ZERO(net->ipv4.iptable_raw);
}
static void __net_exit iptable_raw_net_exit(struct net *net)
diff --git a/net/ipv4/netfilter/iptable_security.c b/net/ipv4/netfilter/iptable_security.c
index b283d8e2601a..f867a8d38bf7 100644
--- a/net/ipv4/netfilter/iptable_security.c
+++ b/net/ipv4/netfilter/iptable_security.c
@@ -66,7 +66,7 @@ static int __net_init iptable_security_net_init(struct net *net)
net->ipv4.iptable_security =
ipt_register_table(net, &security_table, repl);
kfree(repl);
- return PTR_RET(net->ipv4.iptable_security);
+ return PTR_ERR_OR_ZERO(net->ipv4.iptable_security);
}
static void __net_exit iptable_security_net_exit(struct net *net)
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 6577a1149a47..463bd1273346 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -273,7 +273,7 @@ static const struct snmp_mib snmp4_net_list[] = {
SNMP_MIB_ITEM("TCPFastOpenListenOverflow", LINUX_MIB_TCPFASTOPENLISTENOVERFLOW),
SNMP_MIB_ITEM("TCPFastOpenCookieReqd", LINUX_MIB_TCPFASTOPENCOOKIEREQD),
SNMP_MIB_ITEM("TCPSpuriousRtxHostQueues", LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES),
- SNMP_MIB_ITEM("LowLatencyRxPackets", LINUX_MIB_LOWLATENCYRXPACKETS),
+ SNMP_MIB_ITEM("BusyPollRxPackets", LINUX_MIB_BUSYPOLLRXPACKETS),
SNMP_MIB_SENTINEL
};
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index dd44e0ab600c..61e60d67adca 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -571,7 +571,8 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
flowi4_init_output(&fl4, ipc.oif, sk->sk_mark, tos,
RT_SCOPE_UNIVERSE,
inet->hdrincl ? IPPROTO_RAW : sk->sk_protocol,
- inet_sk_flowi_flags(sk) | FLOWI_FLAG_CAN_SLEEP,
+ inet_sk_flowi_flags(sk) | FLOWI_FLAG_CAN_SLEEP |
+ (inet->hdrincl ? FLOWI_FLAG_KNOWN_NH : 0),
daddr, saddr, 0, 0);
if (!inet->hdrincl) {
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 5423223e93c2..b2f6c74861af 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1121,6 +1121,13 @@ new_segment:
goto wait_for_memory;
/*
+ * All packets are restored as if they have
+ * already been sent.
+ */
+ if (tp->repair)
+ TCP_SKB_CB(skb)->when = tcp_time_stamp;
+
+ /*
* Check whether we can use HW checksum.
*/
if (sk->sk_route_caps & NETIF_F_ALL_CSUM)
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index a9077f441cb2..b6ae92a51f58 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -206,8 +206,8 @@ static u32 cubic_root(u64 a)
*/
static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
{
- u64 offs;
- u32 delta, t, bic_target, max_cnt;
+ u32 delta, bic_target, max_cnt;
+ u64 offs, t;
ca->ack_cnt++; /* count the number of ACKs */
@@ -250,9 +250,11 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
* if the cwnd < 1 million packets !!!
*/
+ t = (s32)(tcp_time_stamp - ca->epoch_start);
+ t += msecs_to_jiffies(ca->delay_min >> 3);
/* change the unit from HZ to bictcp_HZ */
- t = ((tcp_time_stamp + msecs_to_jiffies(ca->delay_min>>3)
- - ca->epoch_start) << BICTCP_HZ) / HZ;
+ t <<= BICTCP_HZ;
+ do_div(t, HZ);
if (t < ca->bic_K) /* t - K */
offs = ca->bic_K - t;
@@ -414,7 +416,7 @@ static void bictcp_acked(struct sock *sk, u32 cnt, s32 rtt_us)
return;
/* Discard delay samples right after fast recovery */
- if ((s32)(tcp_time_stamp - ca->epoch_start) < HZ)
+ if (ca->epoch_start && (s32)(tcp_time_stamp - ca->epoch_start) < HZ)
return;
delay = (rtt_us << 3) / USEC_PER_MSEC;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 28af45abe062..3ca2139a130b 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3535,7 +3535,10 @@ static bool tcp_parse_aligned_timestamp(struct tcp_sock *tp, const struct tcphdr
++ptr;
tp->rx_opt.rcv_tsval = ntohl(*ptr);
++ptr;
- tp->rx_opt.rcv_tsecr = ntohl(*ptr) - tp->tsoffset;
+ if (*ptr)
+ tp->rx_opt.rcv_tsecr = ntohl(*ptr) - tp->tsoffset;
+ else
+ tp->rx_opt.rcv_tsecr = 0;
return true;
}
return false;
@@ -3560,7 +3563,7 @@ static bool tcp_fast_parse_options(const struct sk_buff *skb,
}
tcp_parse_options(skb, &tp->rx_opt, 1, NULL);
- if (tp->rx_opt.saw_tstamp)
+ if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr)
tp->rx_opt.rcv_tsecr -= tp->tsoffset;
return true;
@@ -5316,7 +5319,7 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
int saved_clamp = tp->rx_opt.mss_clamp;
tcp_parse_options(skb, &tp->rx_opt, 0, &foc);
- if (tp->rx_opt.saw_tstamp)
+ if (tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr)
tp->rx_opt.rcv_tsecr -= tp->tsoffset;
if (th->ack) {
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index da14436c1735..8a57d79b0b16 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -132,10 +132,10 @@ static int tcp_update_limit(struct mem_cgroup *memcg, u64 val)
return 0;
}
-static int tcp_cgroup_write(struct cgroup *cont, struct cftype *cft,
+static int tcp_cgroup_write(struct cgroup_subsys_state *css, struct cftype *cft,
const char *buffer)
{
- struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
+ struct mem_cgroup *memcg = mem_cgroup_from_css(css);
unsigned long long val;
int ret = 0;
@@ -180,9 +180,9 @@ static u64 tcp_read_usage(struct mem_cgroup *memcg)
return res_counter_read_u64(&tcp->tcp_memory_allocated, RES_USAGE);
}
-static u64 tcp_cgroup_read(struct cgroup *cont, struct cftype *cft)
+static u64 tcp_cgroup_read(struct cgroup_subsys_state *css, struct cftype *cft)
{
- struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
+ struct mem_cgroup *memcg = mem_cgroup_from_css(css);
u64 val;
switch (cft->private) {
@@ -202,13 +202,13 @@ static u64 tcp_cgroup_read(struct cgroup *cont, struct cftype *cft)
return val;
}
-static int tcp_cgroup_reset(struct cgroup *cont, unsigned int event)
+static int tcp_cgroup_reset(struct cgroup_subsys_state *css, unsigned int event)
{
struct mem_cgroup *memcg;
struct tcp_memcontrol *tcp;
struct cg_proto *cg_proto;
- memcg = mem_cgroup_from_cont(cont);
+ memcg = mem_cgroup_from_css(css);
cg_proto = tcp_prot.proto_cgroup(memcg);
if (!cg_proto)
return 0;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 92fde8d1aa82..170737a9d56d 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2670,7 +2670,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
int tcp_header_size;
int mss;
- skb = alloc_skb(MAX_TCP_HEADER + 15, sk_gfp_atomic(sk, GFP_ATOMIC));
+ skb = sock_wmalloc(sk, MAX_TCP_HEADER + 15, 1, GFP_ATOMIC);
if (unlikely(!skb)) {
dst_release(dst);
return NULL;
@@ -2814,6 +2814,8 @@ void tcp_connect_init(struct sock *sk)
if (likely(!tp->repair))
tp->rcv_nxt = 0;
+ else
+ tp->rcv_tstamp = tcp_time_stamp;
tp->rcv_wup = tp->rcv_nxt;
tp->copied_seq = tp->rcv_nxt;
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index 327a617d594c..baa0f63731fd 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -21,7 +21,6 @@
static int xfrm4_tunnel_check_size(struct sk_buff *skb)
{
int mtu, ret = 0;
- struct dst_entry *dst;
if (IPCB(skb)->flags & IPSKB_XFRM_TUNNEL_SIZE)
goto out;
@@ -29,12 +28,10 @@ static int xfrm4_tunnel_check_size(struct sk_buff *skb)
if (!(ip_hdr(skb)->frag_off & htons(IP_DF)) || skb->local_df)
goto out;
- dst = skb_dst(skb);
- mtu = dst_mtu(dst);
+ mtu = dst_mtu(skb_dst(skb));
if (skb->len > mtu) {
if (skb->sk)
- ip_local_error(skb->sk, EMSGSIZE, ip_hdr(skb)->daddr,
- inet_sk(skb->sk)->inet_dport, mtu);
+ xfrm_local_error(skb, mtu);
else
icmp_send(skb, ICMP_DEST_UNREACH,
ICMP_FRAG_NEEDED, htonl(mtu));
@@ -99,3 +96,12 @@ int xfrm4_output(struct sk_buff *skb)
x->outer_mode->afinfo->output_finish,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
+
+void xfrm4_local_error(struct sk_buff *skb, u32 mtu)
+{
+ struct iphdr *hdr;
+
+ hdr = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb);
+ ip_local_error(skb->sk, EMSGSIZE, hdr->daddr,
+ inet_sk(skb->sk)->inet_dport, mtu);
+}
diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 9258e751baba..0b2a0641526a 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -83,6 +83,7 @@ static struct xfrm_state_afinfo xfrm4_state_afinfo = {
.extract_input = xfrm4_extract_input,
.extract_output = xfrm4_extract_output,
.transport_finish = xfrm4_transport_finish,
+ .local_error = xfrm4_local_error,
};
void __init xfrm4_state_init(void)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 06:08:28 +0000