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-rw-r--r--net/ipv4/fib_trie.c3
-rw-r--r--net/ipv4/inet_diag.c8
-rw-r--r--net/ipv4/netfilter/arp_tables.c6
-rw-r--r--net/ipv4/netfilter/ip_tables.c6
-rw-r--r--net/ipv4/route.c4
-rw-r--r--net/ipv4/tcp.c31
-rw-r--r--net/ipv4/tcp_dctcp.c20
-rw-r--r--net/ipv4/tcp_fastopen.c5
-rw-r--r--net/ipv4/tcp_illinois.c21
-rw-r--r--net/ipv4/tcp_input.c55
-rw-r--r--net/ipv4/tcp_minisocks.c2
-rw-r--r--net/ipv4/tcp_vegas.c19
-rw-r--r--net/ipv4/tcp_vegas.h3
-rw-r--r--net/ipv4/tcp_westwood.c15
14 files changed, 139 insertions, 59 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index e13fcc602da2..09b62e17dd8c 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1164,6 +1164,7 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
state = fa->fa_state;
new_fa->fa_state = state & ~FA_S_ACCESSED;
new_fa->fa_slen = fa->fa_slen;
+ new_fa->tb_id = tb->tb_id;
err = netdev_switch_fib_ipv4_add(key, plen, fi,
new_fa->fa_tos,
@@ -1764,7 +1765,7 @@ void fib_table_flush_external(struct fib_table *tb)
/* record local slen */
slen = fa->fa_slen;
- if (!fi || !(fi->fib_flags & RTNH_F_EXTERNAL))
+ if (!fi || !(fi->fib_flags & RTNH_F_OFFLOAD))
continue;
netdev_switch_fib_ipv4_del(n->key,
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index bb77ebdae3b3..4d32262c7502 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -224,14 +224,16 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
handler->idiag_get_info(sk, r, info);
if (sk->sk_state < TCP_TIME_WAIT) {
- int err = 0;
+ union tcp_cc_info info;
+ size_t sz = 0;
+ int attr;
rcu_read_lock();
ca_ops = READ_ONCE(icsk->icsk_ca_ops);
if (ca_ops && ca_ops->get_info)
- err = ca_ops->get_info(sk, ext, skb);
+ sz = ca_ops->get_info(sk, ext, &attr, &info);
rcu_read_unlock();
- if (err < 0)
+ if (sz && nla_put(skb, attr, sz, &info) < 0)
goto errout;
}
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 13bfe84bf3ca..a61200754f4b 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -1075,6 +1075,9 @@ static int do_replace(struct net *net, const void __user *user,
/* overflow check */
if (tmp.num_counters >= INT_MAX / sizeof(struct xt_counters))
return -ENOMEM;
+ if (tmp.num_counters == 0)
+ return -EINVAL;
+
tmp.name[sizeof(tmp.name)-1] = 0;
newinfo = xt_alloc_table_info(tmp.size);
@@ -1499,6 +1502,9 @@ static int compat_do_replace(struct net *net, void __user *user,
return -ENOMEM;
if (tmp.num_counters >= INT_MAX / sizeof(struct xt_counters))
return -ENOMEM;
+ if (tmp.num_counters == 0)
+ return -EINVAL;
+
tmp.name[sizeof(tmp.name)-1] = 0;
newinfo = xt_alloc_table_info(tmp.size);
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index c69db7fa25ee..2d0e265fef6e 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -1262,6 +1262,9 @@ do_replace(struct net *net, const void __user *user, unsigned int len)
/* overflow check */
if (tmp.num_counters >= INT_MAX / sizeof(struct xt_counters))
return -ENOMEM;
+ if (tmp.num_counters == 0)
+ return -EINVAL;
+
tmp.name[sizeof(tmp.name)-1] = 0;
newinfo = xt_alloc_table_info(tmp.size);
@@ -1809,6 +1812,9 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len)
return -ENOMEM;
if (tmp.num_counters >= INT_MAX / sizeof(struct xt_counters))
return -ENOMEM;
+ if (tmp.num_counters == 0)
+ return -EINVAL;
+
tmp.name[sizeof(tmp.name)-1] = 0;
newinfo = xt_alloc_table_info(tmp.size);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index bff62fc87b8e..f45f2a12f37b 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -902,6 +902,10 @@ static int ip_error(struct sk_buff *skb)
bool send;
int code;
+ /* IP on this device is disabled. */
+ if (!in_dev)
+ goto out;
+
net = dev_net(rt->dst.dev);
if (!IN_DEV_FORWARD(in_dev)) {
switch (rt->dst.error) {
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 8c5cd9efebbc..f1377f2a0472 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -252,6 +252,7 @@
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/poll.h>
+#include <linux/inet_diag.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/skbuff.h>
@@ -401,6 +402,7 @@ void tcp_init_sock(struct sock *sk)
tp->snd_ssthresh = TCP_INFINITE_SSTHRESH;
tp->snd_cwnd_clamp = ~0;
tp->mss_cache = TCP_MSS_DEFAULT;
+ u64_stats_init(&tp->syncp);
tp->reordering = sysctl_tcp_reordering;
tcp_enable_early_retrans(tp);
@@ -2592,11 +2594,12 @@ EXPORT_SYMBOL(compat_tcp_setsockopt);
#endif
/* Return information about state of tcp endpoint in API format. */
-void tcp_get_info(const struct sock *sk, struct tcp_info *info)
+void tcp_get_info(struct sock *sk, struct tcp_info *info)
{
const struct tcp_sock *tp = tcp_sk(sk);
const struct inet_connection_sock *icsk = inet_csk(sk);
u32 now = tcp_time_stamp;
+ unsigned int start;
u32 rate;
memset(info, 0, sizeof(*info));
@@ -2663,6 +2666,12 @@ void tcp_get_info(const struct sock *sk, struct tcp_info *info)
rate = READ_ONCE(sk->sk_max_pacing_rate);
info->tcpi_max_pacing_rate = rate != ~0U ? rate : ~0ULL;
+
+ do {
+ start = u64_stats_fetch_begin_irq(&tp->syncp);
+ info->tcpi_bytes_acked = tp->bytes_acked;
+ info->tcpi_bytes_received = tp->bytes_received;
+ } while (u64_stats_fetch_retry_irq(&tp->syncp, start));
}
EXPORT_SYMBOL_GPL(tcp_get_info);
@@ -2734,6 +2743,26 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
return -EFAULT;
return 0;
}
+ case TCP_CC_INFO: {
+ const struct tcp_congestion_ops *ca_ops;
+ union tcp_cc_info info;
+ size_t sz = 0;
+ int attr;
+
+ if (get_user(len, optlen))
+ return -EFAULT;
+
+ ca_ops = icsk->icsk_ca_ops;
+ if (ca_ops && ca_ops->get_info)
+ sz = ca_ops->get_info(sk, ~0U, &attr, &info);
+
+ len = min_t(unsigned int, len, sz);
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &info, len))
+ return -EFAULT;
+ return 0;
+ }
case TCP_QUICKACK:
val = !icsk->icsk_ack.pingpong;
break;
diff --git a/net/ipv4/tcp_dctcp.c b/net/ipv4/tcp_dctcp.c
index 4376016f7fa5..4c41c1287197 100644
--- a/net/ipv4/tcp_dctcp.c
+++ b/net/ipv4/tcp_dctcp.c
@@ -277,7 +277,8 @@ static void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev)
}
}
-static int dctcp_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
+static size_t dctcp_get_info(struct sock *sk, u32 ext, int *attr,
+ union tcp_cc_info *info)
{
const struct dctcp *ca = inet_csk_ca(sk);
@@ -286,18 +287,17 @@ static int dctcp_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
*/
if (ext & (1 << (INET_DIAG_DCTCPINFO - 1)) ||
ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
- struct tcp_dctcp_info info;
-
- memset(&info, 0, sizeof(info));
+ memset(info, 0, sizeof(struct tcp_dctcp_info));
if (inet_csk(sk)->icsk_ca_ops != &dctcp_reno) {
- info.dctcp_enabled = 1;
- info.dctcp_ce_state = (u16) ca->ce_state;
- info.dctcp_alpha = ca->dctcp_alpha;
- info.dctcp_ab_ecn = ca->acked_bytes_ecn;
- info.dctcp_ab_tot = ca->acked_bytes_total;
+ info->dctcp.dctcp_enabled = 1;
+ info->dctcp.dctcp_ce_state = (u16) ca->ce_state;
+ info->dctcp.dctcp_alpha = ca->dctcp_alpha;
+ info->dctcp.dctcp_ab_ecn = ca->acked_bytes_ecn;
+ info->dctcp.dctcp_ab_tot = ca->acked_bytes_total;
}
- return nla_put(skb, INET_DIAG_DCTCPINFO, sizeof(info), &info);
+ *attr = INET_DIAG_DCTCPINFO;
+ return sizeof(*info);
}
return 0;
}
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index e3d87aca6be8..46b087a27503 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -206,6 +206,11 @@ static bool tcp_fastopen_create_child(struct sock *sk,
skb_set_owner_r(skb2, child);
__skb_queue_tail(&child->sk_receive_queue, skb2);
tp->syn_data_acked = 1;
+
+ /* u64_stats_update_begin(&tp->syncp) not needed here,
+ * as we certainly are not changing upper 32bit value (0)
+ */
+ tp->bytes_received = end_seq - TCP_SKB_CB(skb)->seq - 1;
} else {
end_seq = TCP_SKB_CB(skb)->seq + 1;
}
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index 67476f085e48..f71002e4db0b 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -300,24 +300,25 @@ static u32 tcp_illinois_ssthresh(struct sock *sk)
}
/* Extract info for Tcp socket info provided via netlink. */
-static int tcp_illinois_info(struct sock *sk, u32 ext, struct sk_buff *skb)
+static size_t tcp_illinois_info(struct sock *sk, u32 ext, int *attr,
+ union tcp_cc_info *info)
{
const struct illinois *ca = inet_csk_ca(sk);
if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
- struct tcpvegas_info info = {
- .tcpv_enabled = 1,
- .tcpv_rttcnt = ca->cnt_rtt,
- .tcpv_minrtt = ca->base_rtt,
- };
+ info->vegas.tcpv_enabled = 1;
+ info->vegas.tcpv_rttcnt = ca->cnt_rtt;
+ info->vegas.tcpv_minrtt = ca->base_rtt;
+ info->vegas.tcpv_rtt = 0;
- if (info.tcpv_rttcnt > 0) {
+ if (info->vegas.tcpv_rttcnt > 0) {
u64 t = ca->sum_rtt;
- do_div(t, info.tcpv_rttcnt);
- info.tcpv_rtt = t;
+ do_div(t, info->vegas.tcpv_rttcnt);
+ info->vegas.tcpv_rtt = t;
}
- return nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
+ *attr = INET_DIAG_VEGASINFO;
+ return sizeof(struct tcpvegas_info);
}
return 0;
}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 3a4d9b34bed4..c9ab964189a0 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1820,14 +1820,12 @@ advance_sp:
for (j = 0; j < used_sacks; j++)
tp->recv_sack_cache[i++] = sp[j];
- tcp_mark_lost_retrans(sk);
-
- tcp_verify_left_out(tp);
-
if ((state.reord < tp->fackets_out) &&
((inet_csk(sk)->icsk_ca_state != TCP_CA_Loss) || tp->undo_marker))
tcp_update_reordering(sk, tp->fackets_out - state.reord, 0);
+ tcp_mark_lost_retrans(sk);
+ tcp_verify_left_out(tp);
out:
#if FASTRETRANS_DEBUG > 0
@@ -2700,16 +2698,21 @@ static void tcp_process_loss(struct sock *sk, int flag, bool is_dupack)
struct tcp_sock *tp = tcp_sk(sk);
bool recovered = !before(tp->snd_una, tp->high_seq);
+ if ((flag & FLAG_SND_UNA_ADVANCED) &&
+ tcp_try_undo_loss(sk, false))
+ return;
+
if (tp->frto) { /* F-RTO RFC5682 sec 3.1 (sack enhanced version). */
/* Step 3.b. A timeout is spurious if not all data are
* lost, i.e., never-retransmitted data are (s)acked.
*/
- if (tcp_try_undo_loss(sk, flag & FLAG_ORIG_SACK_ACKED))
+ if ((flag & FLAG_ORIG_SACK_ACKED) &&
+ tcp_try_undo_loss(sk, true))
return;
- if (after(tp->snd_nxt, tp->high_seq) &&
- (flag & FLAG_DATA_SACKED || is_dupack)) {
- tp->frto = 0; /* Loss was real: 2nd part of step 3.a */
+ if (after(tp->snd_nxt, tp->high_seq)) {
+ if (flag & FLAG_DATA_SACKED || is_dupack)
+ tp->frto = 0; /* Step 3.a. loss was real */
} else if (flag & FLAG_SND_UNA_ADVANCED && !recovered) {
tp->high_seq = tp->snd_nxt;
__tcp_push_pending_frames(sk, tcp_current_mss(sk),
@@ -2734,8 +2737,6 @@ static void tcp_process_loss(struct sock *sk, int flag, bool is_dupack)
else if (flag & FLAG_SND_UNA_ADVANCED)
tcp_reset_reno_sack(tp);
}
- if (tcp_try_undo_loss(sk, false))
- return;
tcp_xmit_retransmit_queue(sk);
}
@@ -3280,6 +3281,28 @@ static inline bool tcp_may_update_window(const struct tcp_sock *tp,
(ack_seq == tp->snd_wl1 && nwin > tp->snd_wnd);
}
+/* If we update tp->snd_una, also update tp->bytes_acked */
+static void tcp_snd_una_update(struct tcp_sock *tp, u32 ack)
+{
+ u32 delta = ack - tp->snd_una;
+
+ u64_stats_update_begin(&tp->syncp);
+ tp->bytes_acked += delta;
+ u64_stats_update_end(&tp->syncp);
+ tp->snd_una = ack;
+}
+
+/* If we update tp->rcv_nxt, also update tp->bytes_received */
+static void tcp_rcv_nxt_update(struct tcp_sock *tp, u32 seq)
+{
+ u32 delta = seq - tp->rcv_nxt;
+
+ u64_stats_update_begin(&tp->syncp);
+ tp->bytes_received += delta;
+ u64_stats_update_end(&tp->syncp);
+ tp->rcv_nxt = seq;
+}
+
/* Update our send window.
*
* Window update algorithm, described in RFC793/RFC1122 (used in linux-2.2
@@ -3315,7 +3338,7 @@ static int tcp_ack_update_window(struct sock *sk, const struct sk_buff *skb, u32
}
}
- tp->snd_una = ack;
+ tcp_snd_una_update(tp, ack);
return flag;
}
@@ -3497,7 +3520,7 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
* Note, we use the fact that SND.UNA>=SND.WL2.
*/
tcp_update_wl(tp, ack_seq);
- tp->snd_una = ack;
+ tcp_snd_una_update(tp, ack);
flag |= FLAG_WIN_UPDATE;
tcp_in_ack_event(sk, CA_ACK_WIN_UPDATE);
@@ -4236,7 +4259,7 @@ static void tcp_ofo_queue(struct sock *sk)
tail = skb_peek_tail(&sk->sk_receive_queue);
eaten = tail && tcp_try_coalesce(sk, tail, skb, &fragstolen);
- tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
+ tcp_rcv_nxt_update(tp, TCP_SKB_CB(skb)->end_seq);
if (!eaten)
__skb_queue_tail(&sk->sk_receive_queue, skb);
if (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN)
@@ -4404,7 +4427,7 @@ static int __must_check tcp_queue_rcv(struct sock *sk, struct sk_buff *skb, int
__skb_pull(skb, hdrlen);
eaten = (tail &&
tcp_try_coalesce(sk, tail, skb, fragstolen)) ? 1 : 0;
- tcp_sk(sk)->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
+ tcp_rcv_nxt_update(tcp_sk(sk), TCP_SKB_CB(skb)->end_seq);
if (!eaten) {
__skb_queue_tail(&sk->sk_receive_queue, skb);
skb_set_owner_r(skb, sk);
@@ -4497,7 +4520,7 @@ queue_and_out:
eaten = tcp_queue_rcv(sk, skb, 0, &fragstolen);
}
- tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
+ tcp_rcv_nxt_update(tp, TCP_SKB_CB(skb)->end_seq);
if (skb->len)
tcp_event_data_recv(sk, skb);
if (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN)
@@ -5245,7 +5268,7 @@ void tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
tcp_rcv_rtt_measure_ts(sk, skb);
__skb_pull(skb, tcp_header_len);
- tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
+ tcp_rcv_nxt_update(tp, TCP_SKB_CB(skb)->end_seq);
NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPHPHITSTOUSER);
eaten = 1;
}
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index e5d7649136fc..b5732a54f2ad 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -300,7 +300,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
tw->tw_v6_daddr = sk->sk_v6_daddr;
tw->tw_v6_rcv_saddr = sk->sk_v6_rcv_saddr;
tw->tw_tclass = np->tclass;
- tw->tw_flowlabel = np->flow_label >> 12;
+ tw->tw_flowlabel = be32_to_cpu(np->flow_label & IPV6_FLOWLABEL_MASK);
tw->tw_ipv6only = sk->sk_ipv6only;
}
#endif
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index c71a1b8f7bde..a6cea1d5e20d 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -286,18 +286,19 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 acked)
}
/* Extract info for Tcp socket info provided via netlink. */
-int tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
+size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr,
+ union tcp_cc_info *info)
{
const struct vegas *ca = inet_csk_ca(sk);
+
if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
- struct tcpvegas_info info = {
- .tcpv_enabled = ca->doing_vegas_now,
- .tcpv_rttcnt = ca->cntRTT,
- .tcpv_rtt = ca->baseRTT,
- .tcpv_minrtt = ca->minRTT,
- };
-
- return nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
+ info->vegas.tcpv_enabled = ca->doing_vegas_now,
+ info->vegas.tcpv_rttcnt = ca->cntRTT,
+ info->vegas.tcpv_rtt = ca->baseRTT,
+ info->vegas.tcpv_minrtt = ca->minRTT,
+
+ *attr = INET_DIAG_VEGASINFO;
+ return sizeof(struct tcpvegas_info);
}
return 0;
}
diff --git a/net/ipv4/tcp_vegas.h b/net/ipv4/tcp_vegas.h
index e8a6b33cc61d..ef9da5306c68 100644
--- a/net/ipv4/tcp_vegas.h
+++ b/net/ipv4/tcp_vegas.h
@@ -19,6 +19,7 @@ void tcp_vegas_init(struct sock *sk);
void tcp_vegas_state(struct sock *sk, u8 ca_state);
void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, s32 rtt_us);
void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
-int tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
+size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr,
+ union tcp_cc_info *info);
#endif /* __TCP_VEGAS_H */
diff --git a/net/ipv4/tcp_westwood.c b/net/ipv4/tcp_westwood.c
index b3c57cceb990..c10732e39837 100644
--- a/net/ipv4/tcp_westwood.c
+++ b/net/ipv4/tcp_westwood.c
@@ -256,18 +256,19 @@ static void tcp_westwood_event(struct sock *sk, enum tcp_ca_event event)
}
/* Extract info for Tcp socket info provided via netlink. */
-static int tcp_westwood_info(struct sock *sk, u32 ext, struct sk_buff *skb)
+static size_t tcp_westwood_info(struct sock *sk, u32 ext, int *attr,
+ union tcp_cc_info *info)
{
const struct westwood *ca = inet_csk_ca(sk);
if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
- struct tcpvegas_info info = {
- .tcpv_enabled = 1,
- .tcpv_rtt = jiffies_to_usecs(ca->rtt),
- .tcpv_minrtt = jiffies_to_usecs(ca->rtt_min),
- };
+ info->vegas.tcpv_enabled = 1;
+ info->vegas.tcpv_rttcnt = 0;
+ info->vegas.tcpv_rtt = jiffies_to_usecs(ca->rtt),
+ info->vegas.tcpv_minrtt = jiffies_to_usecs(ca->rtt_min),
- return nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
+ *attr = INET_DIAG_VEGASINFO;
+ return sizeof(struct tcpvegas_info);
}
return 0;
}