summaryrefslogtreecommitdiff
path: root/net/ipv4
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/fou.c3
-rw-r--r--net/ipv4/inet_diag.c28
-rw-r--r--net/ipv4/tcp.c10
-rw-r--r--net/ipv4/tcp_dctcp.c5
-rw-r--r--net/ipv4/tcp_illinois.c6
-rw-r--r--net/ipv4/tcp_vegas.c5
-rw-r--r--net/ipv4/tcp_vegas.h2
-rw-r--r--net/ipv4/tcp_westwood.c6
8 files changed, 42 insertions, 23 deletions
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index af150b43b214..34968cd5c146 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -711,11 +711,10 @@ static int fou_nl_dump(struct sk_buff *skb, struct netlink_callback *cb)
cb->nlh->nlmsg_seq, NLM_F_MULTI,
skb, FOU_CMD_GET);
if (ret)
- goto done;
+ break;
}
mutex_unlock(&fn->fou_lock);
-done:
cb->args[0] = idx;
return skb->len;
}
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 70e8b3c308ec..bb77ebdae3b3 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -111,6 +111,7 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
const struct nlmsghdr *unlh)
{
const struct inet_sock *inet = inet_sk(sk);
+ const struct tcp_congestion_ops *ca_ops;
const struct inet_diag_handler *handler;
int ext = req->idiag_ext;
struct inet_diag_msg *r;
@@ -208,16 +209,31 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
info = nla_data(attr);
}
- if ((ext & (1 << (INET_DIAG_CONG - 1))) && icsk->icsk_ca_ops)
- if (nla_put_string(skb, INET_DIAG_CONG,
- icsk->icsk_ca_ops->name) < 0)
+ if (ext & (1 << (INET_DIAG_CONG - 1))) {
+ int err = 0;
+
+ rcu_read_lock();
+ ca_ops = READ_ONCE(icsk->icsk_ca_ops);
+ if (ca_ops)
+ err = nla_put_string(skb, INET_DIAG_CONG, ca_ops->name);
+ rcu_read_unlock();
+ if (err < 0)
goto errout;
+ }
handler->idiag_get_info(sk, r, info);
- if (sk->sk_state < TCP_TIME_WAIT &&
- icsk->icsk_ca_ops && icsk->icsk_ca_ops->get_info)
- icsk->icsk_ca_ops->get_info(sk, ext, skb);
+ if (sk->sk_state < TCP_TIME_WAIT) {
+ int err = 0;
+
+ 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);
+ rcu_read_unlock();
+ if (err < 0)
+ goto errout;
+ }
out:
nlmsg_end(skb, nlh);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 18e3a12eb1b2..59c8a027721b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2595,6 +2595,7 @@ void tcp_get_info(const 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;
+ u32 rate;
memset(info, 0, sizeof(*info));
@@ -2655,10 +2656,11 @@ void tcp_get_info(const struct sock *sk, struct tcp_info *info)
info->tcpi_total_retrans = tp->total_retrans;
- info->tcpi_pacing_rate = sk->sk_pacing_rate != ~0U ?
- sk->sk_pacing_rate : ~0ULL;
- info->tcpi_max_pacing_rate = sk->sk_max_pacing_rate != ~0U ?
- sk->sk_max_pacing_rate : ~0ULL;
+ rate = READ_ONCE(sk->sk_pacing_rate);
+ info->tcpi_pacing_rate = rate != ~0U ? rate : ~0ULL;
+
+ rate = READ_ONCE(sk->sk_max_pacing_rate);
+ info->tcpi_max_pacing_rate = rate != ~0U ? rate : ~0ULL;
}
EXPORT_SYMBOL_GPL(tcp_get_info);
diff --git a/net/ipv4/tcp_dctcp.c b/net/ipv4/tcp_dctcp.c
index b504371af742..4376016f7fa5 100644
--- a/net/ipv4/tcp_dctcp.c
+++ b/net/ipv4/tcp_dctcp.c
@@ -277,7 +277,7 @@ static void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev)
}
}
-static void dctcp_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
+static int dctcp_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
{
const struct dctcp *ca = inet_csk_ca(sk);
@@ -297,8 +297,9 @@ static void dctcp_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
info.dctcp_ab_tot = ca->acked_bytes_total;
}
- nla_put(skb, INET_DIAG_DCTCPINFO, sizeof(info), &info);
+ return nla_put(skb, INET_DIAG_DCTCPINFO, sizeof(info), &info);
}
+ return 0;
}
static struct tcp_congestion_ops dctcp __read_mostly = {
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index 1d5a30a90adf..67476f085e48 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -300,8 +300,7 @@ static u32 tcp_illinois_ssthresh(struct sock *sk)
}
/* Extract info for Tcp socket info provided via netlink. */
-static void tcp_illinois_info(struct sock *sk, u32 ext,
- struct sk_buff *skb)
+static int tcp_illinois_info(struct sock *sk, u32 ext, struct sk_buff *skb)
{
const struct illinois *ca = inet_csk_ca(sk);
@@ -318,8 +317,9 @@ static void tcp_illinois_info(struct sock *sk, u32 ext,
do_div(t, info.tcpv_rttcnt);
info.tcpv_rtt = t;
}
- nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
+ return nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
}
+ return 0;
}
static struct tcp_congestion_ops tcp_illinois __read_mostly = {
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index a6afde666ab1..c71a1b8f7bde 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -286,7 +286,7 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 acked)
}
/* Extract info for Tcp socket info provided via netlink. */
-void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
+int tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
{
const struct vegas *ca = inet_csk_ca(sk);
if (ext & (1 << (INET_DIAG_VEGASINFO - 1))) {
@@ -297,8 +297,9 @@ void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb)
.tcpv_minrtt = ca->minRTT,
};
- nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
+ return nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
}
+ return 0;
}
EXPORT_SYMBOL_GPL(tcp_vegas_get_info);
diff --git a/net/ipv4/tcp_vegas.h b/net/ipv4/tcp_vegas.h
index 0531b99d8637..e8a6b33cc61d 100644
--- a/net/ipv4/tcp_vegas.h
+++ b/net/ipv4/tcp_vegas.h
@@ -19,6 +19,6 @@ 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);
-void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
+int tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
#endif /* __TCP_VEGAS_H */
diff --git a/net/ipv4/tcp_westwood.c b/net/ipv4/tcp_westwood.c
index bb63fba47d47..b3c57cceb990 100644
--- a/net/ipv4/tcp_westwood.c
+++ b/net/ipv4/tcp_westwood.c
@@ -256,8 +256,7 @@ static void tcp_westwood_event(struct sock *sk, enum tcp_ca_event event)
}
/* Extract info for Tcp socket info provided via netlink. */
-static void tcp_westwood_info(struct sock *sk, u32 ext,
- struct sk_buff *skb)
+static int tcp_westwood_info(struct sock *sk, u32 ext, struct sk_buff *skb)
{
const struct westwood *ca = inet_csk_ca(sk);
@@ -268,8 +267,9 @@ static void tcp_westwood_info(struct sock *sk, u32 ext,
.tcpv_minrtt = jiffies_to_usecs(ca->rtt_min),
};
- nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
+ return nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info);
}
+ return 0;
}
static struct tcp_congestion_ops tcp_westwood __read_mostly = {
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-11-29 17:58:35 +0000