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-rw-r--r--net/8021q/vlan.c2
-rw-r--r--net/Makefile4
-rw-r--r--net/appletalk/ddp.c2
-rw-r--r--net/atm/common.c11
-rw-r--r--net/atm/common.h2
-rw-r--r--net/atm/pvc.c2
-rw-r--r--net/atm/svc.c2
-rw-r--r--net/ax25/af_ax25.c2
-rw-r--r--net/bluetooth/af_bluetooth.c7
-rw-r--r--net/bluetooth/hci_sock.c2
-rw-r--r--net/bluetooth/l2cap_sock.c2
-rw-r--r--net/bluetooth/rfcomm/sock.c2
-rw-r--r--net/bluetooth/sco.c2
-rw-r--r--net/bpfilter/Kconfig2
-rw-r--r--net/bpfilter/Makefile17
-rw-r--r--net/bpfilter/bpfilter_kern.c11
-rw-r--r--net/bpfilter/bpfilter_umh_blob.S7
-rw-r--r--net/caif/caif_socket.c12
-rw-r--r--net/can/bcm.c2
-rw-r--r--net/can/raw.c2
-rw-r--r--net/core/datagram.c13
-rw-r--r--net/core/dev_ioctl.c11
-rw-r--r--net/core/fib_rules.c80
-rw-r--r--net/core/filter.c86
-rw-r--r--net/core/skbuff.c3
-rw-r--r--net/core/sock.c7
-rw-r--r--net/dccp/dccp.h3
-rw-r--r--net/dccp/ipv4.c2
-rw-r--r--net/dccp/ipv6.c2
-rw-r--r--net/dccp/proto.c13
-rw-r--r--net/decnet/af_decnet.c6
-rw-r--r--net/ieee802154/socket.c4
-rw-r--r--net/ipv4/af_inet.c8
-rw-r--r--net/ipv4/fou.c4
-rw-r--r--net/ipv4/gre_offload.c2
-rw-r--r--net/ipv4/sysctl_net_ipv4.c18
-rw-r--r--net/ipv4/tcp.c23
-rw-r--r--net/ipv4/tcp_input.c13
-rw-r--r--net/ipv4/udp.c10
-rw-r--r--net/ipv4/udp_offload.c2
-rw-r--r--net/ipv6/addrconf.c9
-rw-r--r--net/ipv6/af_inet6.c4
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c6
-rw-r--r--net/ipv6/raw.c4
-rw-r--r--net/ipv6/seg6_hmac.c2
-rw-r--r--net/iucv/af_iucv.c7
-rw-r--r--net/kcm/kcmsock.c10
-rw-r--r--net/key/af_key.c2
-rw-r--r--net/l2tp/l2tp_ip.c2
-rw-r--r--net/l2tp/l2tp_ip6.c2
-rw-r--r--net/l2tp/l2tp_ppp.c2
-rw-r--r--net/llc/af_llc.c2
-rw-r--r--net/mac80211/tx.c2
-rw-r--r--net/netfilter/nf_conncount.c52
-rw-r--r--net/netfilter/nf_conntrack_helper.c5
-rw-r--r--net/netfilter/nf_log.c13
-rw-r--r--net/netfilter/nfnetlink_queue.c3
-rw-r--r--net/netlink/af_netlink.c2
-rw-r--r--net/netrom/af_netrom.c2
-rw-r--r--net/nfc/llcp_sock.c9
-rw-r--r--net/nfc/rawsock.c4
-rw-r--r--net/packet/af_packet.c9
-rw-r--r--net/phonet/socket.c9
-rw-r--r--net/qrtr/qrtr.c2
-rw-r--r--net/rds/connection.c11
-rw-r--r--net/rds/loop.c56
-rw-r--r--net/rds/loop.h2
-rw-r--r--net/rose/af_rose.c2
-rw-r--r--net/rxrpc/af_rxrpc.c10
-rw-r--r--net/sctp/ipv6.c2
-rw-r--r--net/sctp/protocol.c2
-rw-r--r--net/sctp/socket.c4
-rw-r--r--net/smc/af_smc.c98
-rw-r--r--net/smc/smc.h8
-rw-r--r--net/socket.c50
-rw-r--r--net/strparser/strparser.c17
-rw-r--r--net/tipc/socket.c14
-rw-r--r--net/tls/tls_main.c2
-rw-r--r--net/tls/tls_sw.c19
-rw-r--r--net/unix/af_unix.c30
-rw-r--r--net/vmw_vsock/af_vsock.c19
-rw-r--r--net/wireless/nl80211.c35
-rw-r--r--net/x25/af_x25.c2
-rw-r--r--net/xdp/xsk.c7
84 files changed, 624 insertions, 335 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 99141986efa0..5e9950453955 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -694,7 +694,7 @@ static struct sk_buff *vlan_gro_receive(struct list_head *head,
out_unlock:
rcu_read_unlock();
out:
- NAPI_GRO_CB(skb)->flush |= flush;
+ skb_gro_flush_final(skb, pp, flush);
return pp;
}
diff --git a/net/Makefile b/net/Makefile
index 13ec0d5415c7..bdaf53925acd 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -20,11 +20,7 @@ obj-$(CONFIG_TLS) += tls/
obj-$(CONFIG_XFRM) += xfrm/
obj-$(CONFIG_UNIX) += unix/
obj-$(CONFIG_NET) += ipv6/
-ifneq ($(CC_CAN_LINK),y)
-$(warning CC cannot link executables. Skipping bpfilter.)
-else
obj-$(CONFIG_BPFILTER) += bpfilter/
-endif
obj-$(CONFIG_PACKET) += packet/
obj-$(CONFIG_NET_KEY) += key/
obj-$(CONFIG_BRIDGE) += bridge/
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 55fdba05d7d9..9b6bc5abe946 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1869,7 +1869,7 @@ static const struct proto_ops atalk_dgram_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = atalk_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = atalk_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = atalk_compat_ioctl,
diff --git a/net/atm/common.c b/net/atm/common.c
index ff5748b2190f..a7a68e509628 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -647,11 +647,16 @@ out:
return error;
}
-__poll_t vcc_poll_mask(struct socket *sock, __poll_t events)
+__poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait)
{
struct sock *sk = sock->sk;
- struct atm_vcc *vcc = ATM_SD(sock);
- __poll_t mask = 0;
+ struct atm_vcc *vcc;
+ __poll_t mask;
+
+ sock_poll_wait(file, sk_sleep(sk), wait);
+ mask = 0;
+
+ vcc = ATM_SD(sock);
/* exceptional events */
if (sk->sk_err)
diff --git a/net/atm/common.h b/net/atm/common.h
index 526796ad230f..5850649068bb 100644
--- a/net/atm/common.h
+++ b/net/atm/common.h
@@ -17,7 +17,7 @@ int vcc_connect(struct socket *sock, int itf, short vpi, int vci);
int vcc_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
int flags);
int vcc_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len);
-__poll_t vcc_poll_mask(struct socket *sock, __poll_t events);
+__poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait);
int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int vcc_setsockopt(struct socket *sock, int level, int optname,
diff --git a/net/atm/pvc.c b/net/atm/pvc.c
index 9f75092fe778..2cb10af16afc 100644
--- a/net/atm/pvc.c
+++ b/net/atm/pvc.c
@@ -113,7 +113,7 @@ static const struct proto_ops pvc_proto_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = pvc_getname,
- .poll_mask = vcc_poll_mask,
+ .poll = vcc_poll,
.ioctl = vcc_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = vcc_compat_ioctl,
diff --git a/net/atm/svc.c b/net/atm/svc.c
index 53f4ad7087b1..2f91b766ac42 100644
--- a/net/atm/svc.c
+++ b/net/atm/svc.c
@@ -636,7 +636,7 @@ static const struct proto_ops svc_proto_ops = {
.socketpair = sock_no_socketpair,
.accept = svc_accept,
.getname = svc_getname,
- .poll_mask = vcc_poll_mask,
+ .poll = vcc_poll,
.ioctl = svc_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = svc_compat_ioctl,
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index d1d2442ce573..c603d33d5410 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1941,7 +1941,7 @@ static const struct proto_ops ax25_proto_ops = {
.socketpair = sock_no_socketpair,
.accept = ax25_accept,
.getname = ax25_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = ax25_ioctl,
.listen = ax25_listen,
.shutdown = ax25_shutdown,
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 510ab4f55df5..3264e1873219 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -437,13 +437,16 @@ static inline __poll_t bt_accept_poll(struct sock *parent)
return 0;
}
-__poll_t bt_sock_poll_mask(struct socket *sock, __poll_t events)
+__poll_t bt_sock_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk;
__poll_t mask = 0;
BT_DBG("sock %p, sk %p", sock, sk);
+ poll_wait(file, sk_sleep(sk), wait);
+
if (sk->sk_state == BT_LISTEN)
return bt_accept_poll(sk);
@@ -475,7 +478,7 @@ __poll_t bt_sock_poll_mask(struct socket *sock, __poll_t events)
return mask;
}
-EXPORT_SYMBOL(bt_sock_poll_mask);
+EXPORT_SYMBOL(bt_sock_poll);
int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index d6c099861538..1506e1632394 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -1975,7 +1975,7 @@ static const struct proto_ops hci_sock_ops = {
.sendmsg = hci_sock_sendmsg,
.recvmsg = hci_sock_recvmsg,
.ioctl = hci_sock_ioctl,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = hci_sock_setsockopt,
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 742a190034e6..686bdc6b35b0 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1653,7 +1653,7 @@ static const struct proto_ops l2cap_sock_ops = {
.getname = l2cap_sock_getname,
.sendmsg = l2cap_sock_sendmsg,
.recvmsg = l2cap_sock_recvmsg,
- .poll_mask = bt_sock_poll_mask,
+ .poll = bt_sock_poll,
.ioctl = bt_sock_ioctl,
.mmap = sock_no_mmap,
.socketpair = sock_no_socketpair,
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 1cf57622473a..d606e9212291 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -1049,7 +1049,7 @@ static const struct proto_ops rfcomm_sock_ops = {
.setsockopt = rfcomm_sock_setsockopt,
.getsockopt = rfcomm_sock_getsockopt,
.ioctl = rfcomm_sock_ioctl,
- .poll_mask = bt_sock_poll_mask,
+ .poll = bt_sock_poll,
.socketpair = sock_no_socketpair,
.mmap = sock_no_mmap
};
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index d60dbc61d170..413b8ee49fec 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -1197,7 +1197,7 @@ static const struct proto_ops sco_sock_ops = {
.getname = sco_sock_getname,
.sendmsg = sco_sock_sendmsg,
.recvmsg = sco_sock_recvmsg,
- .poll_mask = bt_sock_poll_mask,
+ .poll = bt_sock_poll,
.ioctl = bt_sock_ioctl,
.mmap = sock_no_mmap,
.socketpair = sock_no_socketpair,
diff --git a/net/bpfilter/Kconfig b/net/bpfilter/Kconfig
index a948b072c28f..76deb6615883 100644
--- a/net/bpfilter/Kconfig
+++ b/net/bpfilter/Kconfig
@@ -1,6 +1,5 @@
menuconfig BPFILTER
bool "BPF based packet filtering framework (BPFILTER)"
- default n
depends on NET && BPF && INET
help
This builds experimental bpfilter framework that is aiming to
@@ -9,6 +8,7 @@ menuconfig BPFILTER
if BPFILTER
config BPFILTER_UMH
tristate "bpfilter kernel module with user mode helper"
+ depends on $(success,$(srctree)/scripts/cc-can-link.sh $(CC))
default m
help
This builds bpfilter kernel module with embedded user mode helper
diff --git a/net/bpfilter/Makefile b/net/bpfilter/Makefile
index 051dc18b8ccb..39c6980b5d99 100644
--- a/net/bpfilter/Makefile
+++ b/net/bpfilter/Makefile
@@ -15,20 +15,7 @@ ifeq ($(CONFIG_BPFILTER_UMH), y)
HOSTLDFLAGS += -static
endif
-# a bit of elf magic to convert bpfilter_umh binary into a binary blob
-# inside bpfilter_umh.o elf file referenced by
-# _binary_net_bpfilter_bpfilter_umh_start symbol
-# which bpfilter_kern.c passes further into umh blob loader at run-time
-quiet_cmd_copy_umh = GEN $@
- cmd_copy_umh = echo ':' > $(obj)/.bpfilter_umh.o.cmd; \
- $(OBJCOPY) -I binary \
- `LC_ALL=C $(OBJDUMP) -f net/bpfilter/bpfilter_umh \
- |awk -F' |,' '/file format/{print "-O",$$NF} \
- /^architecture:/{print "-B",$$2}'` \
- --rename-section .data=.init.rodata $< $@
-
-$(obj)/bpfilter_umh.o: $(obj)/bpfilter_umh
- $(call cmd,copy_umh)
+$(obj)/bpfilter_umh_blob.o: $(obj)/bpfilter_umh
obj-$(CONFIG_BPFILTER_UMH) += bpfilter.o
-bpfilter-objs += bpfilter_kern.o bpfilter_umh.o
+bpfilter-objs += bpfilter_kern.o bpfilter_umh_blob.o
diff --git a/net/bpfilter/bpfilter_kern.c b/net/bpfilter/bpfilter_kern.c
index 09522573f611..f0fc182d3db7 100644
--- a/net/bpfilter/bpfilter_kern.c
+++ b/net/bpfilter/bpfilter_kern.c
@@ -10,11 +10,8 @@
#include <linux/file.h>
#include "msgfmt.h"
-#define UMH_start _binary_net_bpfilter_bpfilter_umh_start
-#define UMH_end _binary_net_bpfilter_bpfilter_umh_end
-
-extern char UMH_start;
-extern char UMH_end;
+extern char bpfilter_umh_start;
+extern char bpfilter_umh_end;
static struct umh_info info;
/* since ip_getsockopt() can run in parallel, serialize access to umh */
@@ -93,7 +90,9 @@ static int __init load_umh(void)
int err;
/* fork usermode process */
- err = fork_usermode_blob(&UMH_start, &UMH_end - &UMH_start, &info);
+ err = fork_usermode_blob(&bpfilter_umh_start,
+ &bpfilter_umh_end - &bpfilter_umh_start,
+ &info);
if (err)
return err;
pr_info("Loaded bpfilter_umh pid %d\n", info.pid);
diff --git a/net/bpfilter/bpfilter_umh_blob.S b/net/bpfilter/bpfilter_umh_blob.S
new file mode 100644
index 000000000000..40311d10d2f2
--- /dev/null
+++ b/net/bpfilter/bpfilter_umh_blob.S
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+ .section .init.rodata, "a"
+ .global bpfilter_umh_start
+bpfilter_umh_start:
+ .incbin "net/bpfilter/bpfilter_umh"
+ .global bpfilter_umh_end
+bpfilter_umh_end:
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index c7991867d622..a6fb1b3bcad9 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -934,11 +934,15 @@ static int caif_release(struct socket *sock)
}
/* Copied from af_unix.c:unix_poll(), added CAIF tx_flow handling */
-static __poll_t caif_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t caif_poll(struct file *file,
+ struct socket *sock, poll_table *wait)
{
struct sock *sk = sock->sk;
+ __poll_t mask;
struct caifsock *cf_sk = container_of(sk, struct caifsock, sk);
- __poll_t mask = 0;
+
+ sock_poll_wait(file, sk_sleep(sk), wait);
+ mask = 0;
/* exceptional events? */
if (sk->sk_err)
@@ -972,7 +976,7 @@ static const struct proto_ops caif_seqpacket_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = caif_poll_mask,
+ .poll = caif_poll,
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
@@ -993,7 +997,7 @@ static const struct proto_ops caif_stream_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = caif_poll_mask,
+ .poll = caif_poll,
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 9393f25df08d..0af8f0db892a 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1660,7 +1660,7 @@ static const struct proto_ops bcm_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = can_ioctl, /* use can_ioctl() from af_can.c */
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/can/raw.c b/net/can/raw.c
index fd7e2f49ea6a..1051eee82581 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -843,7 +843,7 @@ static const struct proto_ops raw_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = raw_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = can_ioctl, /* use can_ioctl() from af_can.c */
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/core/datagram.c b/net/core/datagram.c
index f19bf3dc2bd6..9938952c5c78 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -819,8 +819,9 @@ EXPORT_SYMBOL(skb_copy_and_csum_datagram_msg);
/**
* datagram_poll - generic datagram poll
+ * @file: file struct
* @sock: socket
- * @events to wait for
+ * @wait: poll table
*
* Datagram poll: Again totally generic. This also handles
* sequenced packet sockets providing the socket receive queue
@@ -830,10 +831,14 @@ EXPORT_SYMBOL(skb_copy_and_csum_datagram_msg);
* and you use a different write policy from sock_writeable()
* then please supply your own write_space callback.
*/
-__poll_t datagram_poll_mask(struct socket *sock, __poll_t events)
+__poll_t datagram_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk;
- __poll_t mask = 0;
+ __poll_t mask;
+
+ sock_poll_wait(file, sk_sleep(sk), wait);
+ mask = 0;
/* exceptional events? */
if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
@@ -866,4 +871,4 @@ __poll_t datagram_poll_mask(struct socket *sock, __poll_t events)
return mask;
}
-EXPORT_SYMBOL(datagram_poll_mask);
+EXPORT_SYMBOL(datagram_poll);
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
index a04e1e88bf3a..50537ff961a7 100644
--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -285,16 +285,9 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
if (ifr->ifr_qlen < 0)
return -EINVAL;
if (dev->tx_queue_len ^ ifr->ifr_qlen) {
- unsigned int orig_len = dev->tx_queue_len;
-
- dev->tx_queue_len = ifr->ifr_qlen;
- err = call_netdevice_notifiers(
- NETDEV_CHANGE_TX_QUEUE_LEN, dev);
- err = notifier_to_errno(err);
- if (err) {
- dev->tx_queue_len = orig_len;
+ err = dev_change_tx_queue_len(dev, ifr->ifr_qlen);
+ if (err)
return err;
- }
}
return 0;
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 126ffc5bc630..f64aa13811ea 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -416,6 +416,14 @@ static struct fib_rule *rule_find(struct fib_rules_ops *ops,
if (rule->mark && r->mark != rule->mark)
continue;
+ if (rule->suppress_ifgroup != -1 &&
+ r->suppress_ifgroup != rule->suppress_ifgroup)
+ continue;
+
+ if (rule->suppress_prefixlen != -1 &&
+ r->suppress_prefixlen != rule->suppress_prefixlen)
+ continue;
+
if (rule->mark_mask && r->mark_mask != rule->mark_mask)
continue;
@@ -436,6 +444,9 @@ static struct fib_rule *rule_find(struct fib_rules_ops *ops,
if (rule->ip_proto && r->ip_proto != rule->ip_proto)
continue;
+ if (rule->proto && r->proto != rule->proto)
+ continue;
+
if (fib_rule_port_range_set(&rule->sport_range) &&
!fib_rule_port_range_compare(&r->sport_range,
&rule->sport_range))
@@ -645,6 +656,73 @@ errout:
return err;
}
+static int rule_exists(struct fib_rules_ops *ops, struct fib_rule_hdr *frh,
+ struct nlattr **tb, struct fib_rule *rule)
+{
+ struct fib_rule *r;
+
+ list_for_each_entry(r, &ops->rules_list, list) {
+ if (r->action != rule->action)
+ continue;
+
+ if (r->table != rule->table)
+ continue;
+
+ if (r->pref != rule->pref)
+ continue;
+
+ if (memcmp(r->iifname, rule->iifname, IFNAMSIZ))
+ continue;
+
+ if (memcmp(r->oifname, rule->oifname, IFNAMSIZ))
+ continue;
+
+ if (r->mark != rule->mark)
+ continue;
+
+ if (r->suppress_ifgroup != rule->suppress_ifgroup)
+ continue;
+
+ if (r->suppress_prefixlen != rule->suppress_prefixlen)
+ continue;
+
+ if (r->mark_mask != rule->mark_mask)
+ continue;
+
+ if (r->tun_id != rule->tun_id)
+ continue;
+
+ if (r->fr_net != rule->fr_net)
+ continue;
+
+ if (r->l3mdev != rule->l3mdev)
+ continue;
+
+ if (!uid_eq(r->uid_range.start, rule->uid_range.start) ||
+ !uid_eq(r->uid_range.end, rule->uid_range.end))
+ continue;
+
+ if (r->ip_proto != rule->ip_proto)
+ continue;
+
+ if (r->proto != rule->proto)
+ continue;
+
+ if (!fib_rule_port_range_compare(&r->sport_range,
+ &rule->sport_range))
+ continue;
+
+ if (!fib_rule_port_range_compare(&r->dport_range,
+ &rule->dport_range))
+ continue;
+
+ if (!ops->compare(r, frh, tb))
+ continue;
+ return 1;
+ }
+ return 0;
+}
+
int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
@@ -679,7 +757,7 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
goto errout;
if ((nlh->nlmsg_flags & NLM_F_EXCL) &&
- rule_find(ops, frh, tb, rule, user_priority)) {
+ rule_exists(ops, frh, tb, rule)) {
err = -EEXIST;
goto errout_free;
}
diff --git a/net/core/filter.c b/net/core/filter.c
index dade922678f6..547fd34589be 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -4073,8 +4073,9 @@ static int bpf_fib_set_fwd_params(struct bpf_fib_lookup *params,
memcpy(params->smac, dev->dev_addr, ETH_ALEN);
params->h_vlan_TCI = 0;
params->h_vlan_proto = 0;
+ params->ifindex = dev->ifindex;
- return dev->ifindex;
+ return 0;
}
#endif
@@ -4098,7 +4099,7 @@ static int bpf_ipv4_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
/* verify forwarding is enabled on this interface */
in_dev = __in_dev_get_rcu(dev);
if (unlikely(!in_dev || !IN_DEV_FORWARD(in_dev)))
- return 0;
+ return BPF_FIB_LKUP_RET_FWD_DISABLED;
if (flags & BPF_FIB_LOOKUP_OUTPUT) {
fl4.flowi4_iif = 1;
@@ -4123,7 +4124,7 @@ static int bpf_ipv4_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
tb = fib_get_table(net, tbid);
if (unlikely(!tb))
- return 0;
+ return BPF_FIB_LKUP_RET_NOT_FWDED;
err = fib_table_lookup(tb, &fl4, &res, FIB_LOOKUP_NOREF);
} else {
@@ -4135,8 +4136,20 @@ static int bpf_ipv4_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
err = fib_lookup(net, &fl4, &res, FIB_LOOKUP_NOREF);
}
- if (err || res.type != RTN_UNICAST)
- return 0;
+ if (err) {
+ /* map fib lookup errors to RTN_ type */
+ if (err == -EINVAL)
+ return BPF_FIB_LKUP_RET_BLACKHOLE;
+ if (err == -EHOSTUNREACH)
+ return BPF_FIB_LKUP_RET_UNREACHABLE;
+ if (err == -EACCES)
+ return BPF_FIB_LKUP_RET_PROHIBIT;
+
+ return BPF_FIB_LKUP_RET_NOT_FWDED;
+ }
+
+ if (res.type != RTN_UNICAST)
+ return BPF_FIB_LKUP_RET_NOT_FWDED;
if (res.fi->fib_nhs > 1)
fib_select_path(net, &res, &fl4, NULL);
@@ -4144,19 +4157,16 @@ static int bpf_ipv4_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
if (check_mtu) {
mtu = ip_mtu_from_fib_result(&res, params->ipv4_dst);
if (params->tot_len > mtu)
- return 0;
+ return BPF_FIB_LKUP_RET_FRAG_NEEDED;
}
nh = &res.fi->fib_nh[res.nh_sel];
/* do not handle lwt encaps right now */
if (nh->nh_lwtstate)
- return 0;
+ return BPF_FIB_LKUP_RET_UNSUPP_LWT;
dev = nh->nh_dev;
- if (unlikely(!dev))
- return 0;
-
if (nh->nh_gw)
params->ipv4_dst = nh->nh_gw;
@@ -4166,10 +4176,10 @@ static int bpf_ipv4_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
* rcu_read_lock_bh is not needed here
*/
neigh = __ipv4_neigh_lookup_noref(dev, (__force u32)params->ipv4_dst);
- if (neigh)
- return bpf_fib_set_fwd_params(params, neigh, dev);
+ if (!neigh)
+ return BPF_FIB_LKUP_RET_NO_NEIGH;
- return 0;
+ return bpf_fib_set_fwd_params(params, neigh, dev);
}
#endif
@@ -4190,7 +4200,7 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
/* link local addresses are never forwarded */
if (rt6_need_strict(dst) || rt6_need_strict(src))
- return 0;
+ return BPF_FIB_LKUP_RET_NOT_FWDED;
dev = dev_get_by_index_rcu(net, params->ifindex);
if (unlikely(!dev))
@@ -4198,7 +4208,7 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
idev = __in6_dev_get_safely(dev);
if (unlikely(!idev || !net->ipv6.devconf_all->forwarding))
- return 0;
+ return BPF_FIB_LKUP_RET_FWD_DISABLED;
if (flags & BPF_FIB_LOOKUP_OUTPUT) {
fl6.flowi6_iif = 1;
@@ -4225,7 +4235,7 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
tb = ipv6_stub->fib6_get_table(net, tbid);
if (unlikely(!tb))
- return 0;
+ return BPF_FIB_LKUP_RET_NOT_FWDED;
f6i = ipv6_stub->fib6_table_lookup(net, tb, oif, &fl6, strict);
} else {
@@ -4238,11 +4248,23 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
}
if (unlikely(IS_ERR_OR_NULL(f6i) || f6i == net->ipv6.fib6_null_entry))
- return 0;
+ return BPF_FIB_LKUP_RET_NOT_FWDED;
+
+ if (unlikely(f6i->fib6_flags & RTF_REJECT)) {
+ switch (f6i->fib6_type) {
+ case RTN_BLACKHOLE:
+ return BPF_FIB_LKUP_RET_BLACKHOLE;
+ case RTN_UNREACHABLE:
+ return BPF_FIB_LKUP_RET_UNREACHABLE;
+ case RTN_PROHIBIT:
+ return BPF_FIB_LKUP_RET_PROHIBIT;
+ default:
+ return BPF_FIB_LKUP_RET_NOT_FWDED;
+ }
+ }
- if (unlikely(f6i->fib6_flags & RTF_REJECT ||
- f6i->fib6_type != RTN_UNICAST))
- return 0;
+ if (f6i->fib6_type != RTN_UNICAST)
+ return BPF_FIB_LKUP_RET_NOT_FWDED;
if (f6i->fib6_nsiblings && fl6.flowi6_oif == 0)
f6i = ipv6_stub->fib6_multipath_select(net, f6i, &fl6,
@@ -4252,11 +4274,11 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
if (check_mtu) {
mtu = ipv6_stub->ip6_mtu_from_fib6(f6i, dst, src);
if (params->tot_len > mtu)
- return 0;
+ return BPF_FIB_LKUP_RET_FRAG_NEEDED;
}
if (f6i->fib6_nh.nh_lwtstate)
- return 0;
+ return BPF_FIB_LKUP_RET_UNSUPP_LWT;
if (f6i->fib6_flags & RTF_GATEWAY)
*dst = f6i->fib6_nh.nh_gw;
@@ -4270,10 +4292,10 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
*/
neigh = ___neigh_lookup_noref(ipv6_stub->nd_tbl, neigh_key_eq128,
ndisc_hashfn, dst, dev);
- if (neigh)
- return bpf_fib_set_fwd_params(params, neigh, dev);
+ if (!neigh)
+ return BPF_FIB_LKUP_RET_NO_NEIGH;
- return 0;
+ return bpf_fib_set_fwd_params(params, neigh, dev);
}
#endif
@@ -4315,7 +4337,7 @@ BPF_CALL_4(bpf_skb_fib_lookup, struct sk_buff *, skb,
struct bpf_fib_lookup *, params, int, plen, u32, flags)
{
struct net *net = dev_net(skb->dev);
- int index = -EAFNOSUPPORT;
+ int rc = -EAFNOSUPPORT;
if (plen < sizeof(*params))
return -EINVAL;
@@ -4326,25 +4348,25 @@ BPF_CALL_4(bpf_skb_fib_lookup, struct sk_buff *, skb,
switch (params->family) {
#if IS_ENABLED(CONFIG_INET)
case AF_INET:
- index = bpf_ipv4_fib_lookup(net, params, flags, false);
+ rc = bpf_ipv4_fib_lookup(net, params, flags, false);
break;
#endif
#if IS_ENABLED(CONFIG_IPV6)
case AF_INET6:
- index = bpf_ipv6_fib_lookup(net, params, flags, false);
+ rc = bpf_ipv6_fib_lookup(net, params, flags, false);
break;
#endif
}
- if (index > 0) {
+ if (!rc) {
struct net_device *dev;
- dev = dev_get_by_index_rcu(net, index);
+ dev = dev_get_by_index_rcu(net, params->ifindex);
if (!is_skb_forwardable(dev, skb))
- index = 0;
+ rc = BPF_FIB_LKUP_RET_FRAG_NEEDED;
}
- return index;
+ return rc;
}
static const struct bpf_func_proto bpf_skb_fib_lookup_proto = {
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index f59e98ca72c5..1357f36c8a5e 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -5275,8 +5275,7 @@ struct sk_buff *alloc_skb_with_frags(unsigned long header_len,
if (npages >= 1 << order) {
page = alloc_pages((gfp_mask & ~__GFP_DIRECT_RECLAIM) |
__GFP_COMP |
- __GFP_NOWARN |
- __GFP_NORETRY,
+ __GFP_NOWARN,
order);
if (page)
goto fill_page;
diff --git a/net/core/sock.c b/net/core/sock.c
index 8b69ac96a850..6429982eb976 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -3247,7 +3247,8 @@ static int req_prot_init(const struct proto *prot)
rsk_prot->slab = kmem_cache_create(rsk_prot->slab_name,
rsk_prot->obj_size, 0,
- prot->slab_flags, NULL);
+ SLAB_ACCOUNT | prot->slab_flags,
+ NULL);
if (!rsk_prot->slab) {
pr_crit("%s: Can't create request sock SLAB cache!\n",
@@ -3262,7 +3263,8 @@ int proto_register(struct proto *prot, int alloc_slab)
if (alloc_slab) {
prot->slab = kmem_cache_create_usercopy(prot->name,
prot->obj_size, 0,
- SLAB_HWCACHE_ALIGN | prot->slab_flags,
+ SLAB_HWCACHE_ALIGN | SLAB_ACCOUNT |
+ prot->slab_flags,
prot->useroffset, prot->usersize,
NULL);
@@ -3285,6 +3287,7 @@ int proto_register(struct proto *prot, int alloc_slab)
kmem_cache_create(prot->twsk_prot->twsk_slab_name,
prot->twsk_prot->twsk_obj_size,
0,
+ SLAB_ACCOUNT |
prot->slab_flags,
NULL);
if (prot->twsk_prot->twsk_slab == NULL)
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 0ea2ee56ac1b..f91e3816806b 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -316,7 +316,8 @@ int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
int flags, int *addr_len);
void dccp_shutdown(struct sock *sk, int how);
int inet_dccp_listen(struct socket *sock, int backlog);
-__poll_t dccp_poll_mask(struct socket *sock, __poll_t events);
+__poll_t dccp_poll(struct file *file, struct socket *sock,
+ poll_table *wait);
int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
void dccp_req_err(struct sock *sk, u64 seq);
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index a9e478cd3787..b08feb219b44 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -984,7 +984,7 @@ static const struct proto_ops inet_dccp_ops = {
.accept = inet_accept,
.getname = inet_getname,
/* FIXME: work on tcp_poll to rename it to inet_csk_poll */
- .poll_mask = dccp_poll_mask,
+ .poll = dccp_poll,
.ioctl = inet_ioctl,
/* FIXME: work on inet_listen to rename it to sock_common_listen */
.listen = inet_dccp_listen,
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 17fc4e0166ba..6344f1b18a6a 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -1070,7 +1070,7 @@ static const struct proto_ops inet6_dccp_ops = {
.socketpair = sock_no_socketpair,
.accept = inet_accept,
.getname = inet6_getname,
- .poll_mask = dccp_poll_mask,
+ .poll = dccp_poll,
.ioctl = inet6_ioctl,
.listen = inet_dccp_listen,
.shutdown = inet_shutdown,
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index ca21c1c76da0..0d56e36a6db7 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -312,11 +312,20 @@ int dccp_disconnect(struct sock *sk, int flags)
EXPORT_SYMBOL_GPL(dccp_disconnect);
-__poll_t dccp_poll_mask(struct socket *sock, __poll_t events)
+/*
+ * Wait for a DCCP event.
+ *
+ * Note that we don't need to lock the socket, as the upper poll layers
+ * take care of normal races (between the test and the event) and we don't
+ * go look at any of the socket buffers directly.
+ */
+__poll_t dccp_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
__poll_t mask;
struct sock *sk = sock->sk;
+ sock_poll_wait(file, sk_sleep(sk), wait);
if (sk->sk_state == DCCP_LISTEN)
return inet_csk_listen_poll(sk);
@@ -358,7 +367,7 @@ __poll_t dccp_poll_mask(struct socket *sock, __poll_t events)
return mask;
}
-EXPORT_SYMBOL_GPL(dccp_poll_mask);
+EXPORT_SYMBOL_GPL(dccp_poll);
int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 9a686d890bfa..7d6ff983ba2c 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1207,11 +1207,11 @@ static int dn_getname(struct socket *sock, struct sockaddr *uaddr,int peer)
}
-static __poll_t dn_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t dn_poll(struct file *file, struct socket *sock, poll_table *wait)
{
struct sock *sk = sock->sk;
struct dn_scp *scp = DN_SK(sk);
- __poll_t mask = datagram_poll_mask(sock, events);
+ __poll_t mask = datagram_poll(file, sock, wait);
if (!skb_queue_empty(&scp->other_receive_queue))
mask |= EPOLLRDBAND;
@@ -2331,7 +2331,7 @@ static const struct proto_ops dn_proto_ops = {
.socketpair = sock_no_socketpair,
.accept = dn_accept,
.getname = dn_getname,
- .poll_mask = dn_poll_mask,
+ .poll = dn_poll,
.ioctl = dn_ioctl,
.listen = dn_listen,
.shutdown = dn_shutdown,
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index a0768d2759b8..a60658c85a9a 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -423,7 +423,7 @@ static const struct proto_ops ieee802154_raw_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = ieee802154_sock_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
@@ -969,7 +969,7 @@ static const struct proto_ops ieee802154_dgram_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = ieee802154_sock_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 06b218a2870f..9263a2c114e0 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -986,7 +986,7 @@ const struct proto_ops inet_stream_ops = {
.socketpair = sock_no_socketpair,
.accept = inet_accept,
.getname = inet_getname,
- .poll_mask = tcp_poll_mask,
+ .poll = tcp_poll,
.ioctl = inet_ioctl,
.listen = inet_listen,
.shutdown = inet_shutdown,
@@ -1021,7 +1021,7 @@ const struct proto_ops inet_dgram_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = inet_getname,
- .poll_mask = udp_poll_mask,
+ .poll = udp_poll,
.ioctl = inet_ioctl,
.listen = sock_no_listen,
.shutdown = inet_shutdown,
@@ -1042,7 +1042,7 @@ EXPORT_SYMBOL(inet_dgram_ops);
/*
* For SOCK_RAW sockets; should be the same as inet_dgram_ops but without
- * udp_poll_mask
+ * udp_poll
*/
static const struct proto_ops inet_sockraw_ops = {
.family = PF_INET,
@@ -1053,7 +1053,7 @@ static const struct proto_ops inet_sockraw_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = inet_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = inet_ioctl,
.listen = sock_no_listen,
.shutdown = inet_shutdown,
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index efdc9e1f741e..500a59906b87 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -448,9 +448,7 @@ next_proto:
out_unlock:
rcu_read_unlock();
out:
- NAPI_GRO_CB(skb)->flush |= flush;
- skb_gro_remcsum_cleanup(skb, &grc);
- skb->remcsum_offload = 0;
+ skb_gro_flush_final_remcsum(skb, pp, flush, &grc);
return pp;
}
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index b9673c21be45..6c63524f598a 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -223,7 +223,7 @@ static struct sk_buff *gre_gro_receive(struct list_head *head,
out_unlock:
rcu_read_unlock();
out:
- NAPI_GRO_CB(skb)->flush |= flush;
+ skb_gro_flush_final(skb, pp, flush);
return pp;
}
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index d06247ba08b2..af0a857d8352 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -265,8 +265,9 @@ static int proc_tcp_fastopen_key(struct ctl_table *table, int write,
ipv4.sysctl_tcp_fastopen);
struct ctl_table tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
struct tcp_fastopen_context *ctxt;
- int ret;
u32 user_key[4]; /* 16 bytes, matching TCP_FASTOPEN_KEY_LENGTH */
+ __le32 key[4];
+ int ret, i;
tbl.data = kmalloc(tbl.maxlen, GFP_KERNEL);
if (!tbl.data)
@@ -275,11 +276,14 @@ static int proc_tcp_fastopen_key(struct ctl_table *table, int write,
rcu_read_lock();
ctxt = rcu_dereference(net->ipv4.tcp_fastopen_ctx);
if (ctxt)
- memcpy(user_key, ctxt->key, TCP_FASTOPEN_KEY_LENGTH);
+ memcpy(key, ctxt->key, TCP_FASTOPEN_KEY_LENGTH);
else
- memset(user_key, 0, sizeof(user_key));
+ memset(key, 0, sizeof(key));
rcu_read_unlock();
+ for (i = 0; i < ARRAY_SIZE(key); i++)
+ user_key[i] = le32_to_cpu(key[i]);
+
snprintf(tbl.data, tbl.maxlen, "%08x-%08x-%08x-%08x",
user_key[0], user_key[1], user_key[2], user_key[3]);
ret = proc_dostring(&tbl, write, buffer, lenp, ppos);
@@ -290,13 +294,17 @@ static int proc_tcp_fastopen_key(struct ctl_table *table, int write,
ret = -EINVAL;
goto bad_key;
}
- tcp_fastopen_reset_cipher(net, NULL, user_key,
+
+ for (i = 0; i < ARRAY_SIZE(user_key); i++)
+ key[i] = cpu_to_le32(user_key[i]);
+
+ tcp_fastopen_reset_cipher(net, NULL, key,
TCP_FASTOPEN_KEY_LENGTH);
}
bad_key:
pr_debug("proc FO key set 0x%x-%x-%x-%x <- 0x%s: %u\n",
- user_key[0], user_key[1], user_key[2], user_key[3],
+ user_key[0], user_key[1], user_key[2], user_key[3],
(char *)tbl.data, ret);
kfree(tbl.data);
return ret;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 47c45d5be9f9..bf461fa77ed6 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -494,21 +494,32 @@ static inline bool tcp_stream_is_readable(const struct tcp_sock *tp,
}
/*
- * Socket is not locked. We are protected from async events by poll logic and
- * correct handling of state changes made by other threads is impossible in
- * any case.
+ * Wait for a TCP event.
+ *
+ * Note that we don't need to lock the socket, as the upper poll layers
+ * take care of normal races (between the test and the event) and we don't
+ * go look at any of the socket buffers directly.
*/
-__poll_t tcp_poll_mask(struct socket *sock, __poll_t events)
+__poll_t tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
{
+ __poll_t mask;
struct sock *sk = sock->sk;
const struct tcp_sock *tp = tcp_sk(sk);
- __poll_t mask = 0;
int state;
+ sock_poll_wait(file, sk_sleep(sk), wait);
+
state = inet_sk_state_load(sk);
if (state == TCP_LISTEN)
return inet_csk_listen_poll(sk);
+ /* Socket is not locked. We are protected from async events
+ * by poll logic and correct handling of state changes
+ * made by other threads is impossible in any case.
+ */
+
+ mask = 0;
+
/*
* EPOLLHUP is certainly not done right. But poll() doesn't
* have a notion of HUP in just one direction, and for a
@@ -589,7 +600,7 @@ __poll_t tcp_poll_mask(struct socket *sock, __poll_t events)
return mask;
}
-EXPORT_SYMBOL(tcp_poll_mask);
+EXPORT_SYMBOL(tcp_poll);
int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index a4731995e899..814ea43dd12f 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -266,7 +266,7 @@ static void __tcp_ecn_check_ce(struct sock *sk, const struct sk_buff *skb)
* it is probably a retransmit.
*/
if (tp->ecn_flags & TCP_ECN_SEEN)
- tcp_enter_quickack_mode(sk, 1);
+ tcp_enter_quickack_mode(sk, 2);
break;
case INET_ECN_CE:
if (tcp_ca_needs_ecn(sk))
@@ -274,7 +274,7 @@ static void __tcp_ecn_check_ce(struct sock *sk, const struct sk_buff *skb)
if (!(tp->ecn_flags & TCP_ECN_DEMAND_CWR)) {
/* Better not delay acks, sender can have a very low cwnd */
- tcp_enter_quickack_mode(sk, 1);
+ tcp_enter_quickack_mode(sk, 2);
tp->ecn_flags |= TCP_ECN_DEMAND_CWR;
}
tp->ecn_flags |= TCP_ECN_SEEN;
@@ -3185,6 +3185,15 @@ static int tcp_clean_rtx_queue(struct sock *sk, u32 prior_fack,
if (tcp_is_reno(tp)) {
tcp_remove_reno_sacks(sk, pkts_acked);
+
+ /* If any of the cumulatively ACKed segments was
+ * retransmitted, non-SACK case cannot confirm that
+ * progress was due to original transmission due to
+ * lack of TCPCB_SACKED_ACKED bits even if some of
+ * the packets may have been never retransmitted.
+ */
+ if (flag & FLAG_RETRANS_DATA_ACKED)
+ flag &= ~FLAG_ORIG_SACK_ACKED;
} else {
int delta;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 9bb27df4dac5..24e116ddae79 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2591,7 +2591,7 @@ int compat_udp_getsockopt(struct sock *sk, int level, int optname,
* udp_poll - wait for a UDP event.
* @file - file struct
* @sock - socket
- * @events - events to wait for
+ * @wait - poll table
*
* This is same as datagram poll, except for the special case of
* blocking sockets. If application is using a blocking fd
@@ -2600,23 +2600,23 @@ int compat_udp_getsockopt(struct sock *sk, int level, int optname,
* but then block when reading it. Add special case code
* to work around these arguably broken applications.
*/
-__poll_t udp_poll_mask(struct socket *sock, __poll_t events)
+__poll_t udp_poll(struct file *file, struct socket *sock, poll_table *wait)
{
- __poll_t mask = datagram_poll_mask(sock, events);
+ __poll_t mask = datagram_poll(file, sock, wait);
struct sock *sk = sock->sk;
if (!skb_queue_empty(&udp_sk(sk)->reader_queue))
mask |= EPOLLIN | EPOLLRDNORM;
/* Check for false positives due to checksum errors */
- if ((mask & EPOLLRDNORM) && !(sock->file->f_flags & O_NONBLOCK) &&
+ if ((mask & EPOLLRDNORM) && !(file->f_flags & O_NONBLOCK) &&
!(sk->sk_shutdown & RCV_SHUTDOWN) && first_packet_length(sk) == -1)
mask &= ~(EPOLLIN | EPOLLRDNORM);
return mask;
}
-EXPORT_SYMBOL(udp_poll_mask);
+EXPORT_SYMBOL(udp_poll);
int udp_abort(struct sock *sk, int err)
{
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index ac46c1c55c99..0c0522b79b43 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -395,7 +395,7 @@ unflush:
out_unlock:
rcu_read_unlock();
out:
- NAPI_GRO_CB(skb)->flush |= flush;
+ skb_gro_flush_final(skb, pp, flush);
return pp;
}
EXPORT_SYMBOL(udp_gro_receive);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index c134286d6a41..91580c62bb86 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4528,6 +4528,7 @@ static int modify_prefix_route(struct inet6_ifaddr *ifp,
unsigned long expires, u32 flags)
{
struct fib6_info *f6i;
+ u32 prio;
f6i = addrconf_get_prefix_route(&ifp->addr,
ifp->prefix_len,
@@ -4536,13 +4537,15 @@ static int modify_prefix_route(struct inet6_ifaddr *ifp,
if (!f6i)
return -ENOENT;
- if (f6i->fib6_metric != ifp->rt_priority) {
+ prio = ifp->rt_priority ? : IP6_RT_PRIO_ADDRCONF;
+ if (f6i->fib6_metric != prio) {
+ /* delete old one */
+ ip6_del_rt(dev_net(ifp->idev->dev), f6i);
+
/* add new one */
addrconf_prefix_route(&ifp->addr, ifp->prefix_len,
ifp->rt_priority, ifp->idev->dev,
expires, flags, GFP_KERNEL);
- /* delete old one */
- ip6_del_rt(dev_net(ifp->idev->dev), f6i);
} else {
if (!expires)
fib6_clean_expires(f6i);
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 74f2a261e8df..9ed0eae91758 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -570,7 +570,7 @@ const struct proto_ops inet6_stream_ops = {
.socketpair = sock_no_socketpair, /* a do nothing */
.accept = inet_accept, /* ok */
.getname = inet6_getname,
- .poll_mask = tcp_poll_mask, /* ok */
+ .poll = tcp_poll, /* ok */
.ioctl = inet6_ioctl, /* must change */
.listen = inet_listen, /* ok */
.shutdown = inet_shutdown, /* ok */
@@ -603,7 +603,7 @@ const struct proto_ops inet6_dgram_ops = {
.socketpair = sock_no_socketpair, /* a do nothing */
.accept = sock_no_accept, /* a do nothing */
.getname = inet6_getname,
- .poll_mask = udp_poll_mask, /* ok */
+ .poll = udp_poll, /* ok */
.ioctl = inet6_ioctl, /* must change */
.listen = sock_no_listen, /* ok */
.shutdown = inet_shutdown, /* ok */
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 5e0332014c17..a452d99c9f52 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -107,7 +107,7 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
if (hdr == NULL)
goto err_reg;
- net->nf_frag.sysctl.frags_hdr = hdr;
+ net->nf_frag_frags_hdr = hdr;
return 0;
err_reg:
@@ -121,8 +121,8 @@ static void __net_exit nf_ct_frags6_sysctl_unregister(struct net *net)
{
struct ctl_table *table;
- table = net->nf_frag.sysctl.frags_hdr->ctl_table_arg;
- unregister_net_sysctl_table(net->nf_frag.sysctl.frags_hdr);
+ table = net->nf_frag_frags_hdr->ctl_table_arg;
+ unregister_net_sysctl_table(net->nf_frag_frags_hdr);
if (!net_eq(net, &init_net))
kfree(table);
}
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index ce6f0d15b5dd..afc307c89d1a 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1334,7 +1334,7 @@ void raw6_proc_exit(void)
}
#endif /* CONFIG_PROC_FS */
-/* Same as inet6_dgram_ops, sans udp_poll_mask. */
+/* Same as inet6_dgram_ops, sans udp_poll. */
const struct proto_ops inet6_sockraw_ops = {
.family = PF_INET6,
.owner = THIS_MODULE,
@@ -1344,7 +1344,7 @@ const struct proto_ops inet6_sockraw_ops = {
.socketpair = sock_no_socketpair, /* a do nothing */
.accept = sock_no_accept, /* a do nothing */
.getname = inet6_getname,
- .poll_mask = datagram_poll_mask, /* ok */
+ .poll = datagram_poll, /* ok */
.ioctl = inet6_ioctl, /* must change */
.listen = sock_no_listen, /* ok */
.shutdown = inet_shutdown, /* ok */
diff --git a/net/ipv6/seg6_hmac.c b/net/ipv6/seg6_hmac.c
index b1791129a875..8546f94f30d4 100644
--- a/net/ipv6/seg6_hmac.c
+++ b/net/ipv6/seg6_hmac.c
@@ -374,7 +374,7 @@ static int seg6_hmac_init_algo(void)
return -ENOMEM;
for_each_possible_cpu(cpu) {
- tfm = crypto_alloc_shash(algo->name, 0, GFP_KERNEL);
+ tfm = crypto_alloc_shash(algo->name, 0, 0);
if (IS_ERR(tfm))
return PTR_ERR(tfm);
p_tfm = per_cpu_ptr(algo->tfms, cpu);
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 68e86257a549..893a022f9620 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1488,11 +1488,14 @@ static inline __poll_t iucv_accept_poll(struct sock *parent)
return 0;
}
-static __poll_t iucv_sock_poll_mask(struct socket *sock, __poll_t events)
+__poll_t iucv_sock_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk;
__poll_t mask = 0;
+ sock_poll_wait(file, sk_sleep(sk), wait);
+
if (sk->sk_state == IUCV_LISTEN)
return iucv_accept_poll(sk);
@@ -2385,7 +2388,7 @@ static const struct proto_ops iucv_sock_ops = {
.getname = iucv_sock_getname,
.sendmsg = iucv_sock_sendmsg,
.recvmsg = iucv_sock_recvmsg,
- .poll_mask = iucv_sock_poll_mask,
+ .poll = iucv_sock_poll,
.ioctl = sock_no_ioctl,
.mmap = sock_no_mmap,
.socketpair = sock_no_socketpair,
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index 84b7d5c6fec8..d3601d421571 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -1336,9 +1336,9 @@ static void init_kcm_sock(struct kcm_sock *kcm, struct kcm_mux *mux)
struct list_head *head;
int index = 0;
- /* For SOCK_SEQPACKET sock type, datagram_poll_mask checks the sk_state,
- * so we set sk_state, otherwise epoll_wait always returns right away
- * with EPOLLHUP
+ /* For SOCK_SEQPACKET sock type, datagram_poll checks the sk_state, so
+ * we set sk_state, otherwise epoll_wait always returns right away with
+ * EPOLLHUP
*/
kcm->sk.sk_state = TCP_ESTABLISHED;
@@ -1903,7 +1903,7 @@ static const struct proto_ops kcm_dgram_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = kcm_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
@@ -1924,7 +1924,7 @@ static const struct proto_ops kcm_seqpacket_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = kcm_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 8bdc1cbe490a..5e1d2946ffbf 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3751,7 +3751,7 @@ static const struct proto_ops pfkey_ops = {
/* Now the operations that really occur. */
.release = pfkey_release,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.sendmsg = pfkey_sendmsg,
.recvmsg = pfkey_recvmsg,
};
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 181073bf6925..a9c05b2bc1b0 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -613,7 +613,7 @@ static const struct proto_ops l2tp_ip_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = l2tp_ip_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = inet_ioctl,
.listen = sock_no_listen,
.shutdown = inet_shutdown,
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index 336e4c00abbc..957369192ca1 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -754,7 +754,7 @@ static const struct proto_ops l2tp_ip6_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = l2tp_ip6_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = inet6_ioctl,
.listen = sock_no_listen,
.shutdown = inet_shutdown,
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index d3a9355ac8ac..9ac02c93df98 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -1844,7 +1844,7 @@ static const struct proto_ops pppol2tp_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = pppol2tp_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = pppol2tp_setsockopt,
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 804de8490186..1beeea9549fa 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -1192,7 +1192,7 @@ static const struct proto_ops llc_ui_ops = {
.socketpair = sock_no_socketpair,
.accept = llc_ui_accept,
.getname = llc_ui_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = llc_ui_ioctl,
.listen = llc_ui_listen,
.shutdown = llc_ui_shutdown,
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 5b93bde248fd..6a79d564de35 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4850,7 +4850,9 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
skb_reset_network_header(skb);
skb_reset_mac_header(skb);
+ local_bh_disable();
__ieee80211_subif_start_xmit(skb, skb->dev, flags);
+ local_bh_enable();
return 0;
}
diff --git a/net/netfilter/nf_conncount.c b/net/netfilter/nf_conncount.c
index d8383609fe28..510039862aa9 100644
--- a/net/netfilter/nf_conncount.c
+++ b/net/netfilter/nf_conncount.c
@@ -47,6 +47,8 @@ struct nf_conncount_tuple {
struct hlist_node node;
struct nf_conntrack_tuple tuple;
struct nf_conntrack_zone zone;
+ int cpu;
+ u32 jiffies32;
};
struct nf_conncount_rb {
@@ -91,11 +93,42 @@ bool nf_conncount_add(struct hlist_head *head,
return false;
conn->tuple = *tuple;
conn->zone = *zone;
+ conn->cpu = raw_smp_processor_id();
+ conn->jiffies32 = (u32)jiffies;
hlist_add_head(&conn->node, head);
return true;
}
EXPORT_SYMBOL_GPL(nf_conncount_add);
+static const struct nf_conntrack_tuple_hash *
+find_or_evict(struct net *net, struct nf_conncount_tuple *conn)
+{
+ const struct nf_conntrack_tuple_hash *found;
+ unsigned long a, b;
+ int cpu = raw_smp_processor_id();
+ __s32 age;
+
+ found = nf_conntrack_find_get(net, &conn->zone, &conn->tuple);
+ if (found)
+ return found;
+ b = conn->jiffies32;
+ a = (u32)jiffies;
+
+ /* conn might have been added just before by another cpu and
+ * might still be unconfirmed. In this case, nf_conntrack_find()
+ * returns no result. Thus only evict if this cpu added the
+ * stale entry or if the entry is older than two jiffies.
+ */
+ age = a - b;
+ if (conn->cpu == cpu || age >= 2) {
+ hlist_del(&conn->node);
+ kmem_cache_free(conncount_conn_cachep, conn);
+ return ERR_PTR(-ENOENT);
+ }
+
+ return ERR_PTR(-EAGAIN);
+}
+
unsigned int nf_conncount_lookup(struct net *net, struct hlist_head *head,
const struct nf_conntrack_tuple *tuple,
const struct nf_conntrack_zone *zone,
@@ -103,18 +136,27 @@ unsigned int nf_conncount_lookup(struct net *net, struct hlist_head *head,
{
const struct nf_conntrack_tuple_hash *found;
struct nf_conncount_tuple *conn;
- struct hlist_node *n;
struct nf_conn *found_ct;
+ struct hlist_node *n;
unsigned int length = 0;
*addit = tuple ? true : false;
/* check the saved connections */
hlist_for_each_entry_safe(conn, n, head, node) {
- found = nf_conntrack_find_get(net, &conn->zone, &conn->tuple);
- if (found == NULL) {
- hlist_del(&conn->node);
- kmem_cache_free(conncount_conn_cachep, conn);
+ found = find_or_evict(net, conn);
+ if (IS_ERR(found)) {
+ /* Not found, but might be about to be confirmed */
+ if (PTR_ERR(found) == -EAGAIN) {
+ length++;
+ if (!tuple)
+ continue;
+
+ if (nf_ct_tuple_equal(&conn->tuple, tuple) &&
+ nf_ct_zone_id(&conn->zone, conn->zone.dir) ==
+ nf_ct_zone_id(zone, zone->dir))
+ *addit = false;
+ }
continue;
}
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 551a1eddf0fa..a75b11c39312 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -465,6 +465,11 @@ void nf_conntrack_helper_unregister(struct nf_conntrack_helper *me)
nf_ct_expect_iterate_destroy(expect_iter_me, NULL);
nf_ct_iterate_destroy(unhelp, me);
+
+ /* Maybe someone has gotten the helper already when unhelp above.
+ * So need to wait it.
+ */
+ synchronize_rcu();
}
EXPORT_SYMBOL_GPL(nf_conntrack_helper_unregister);
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 426457047578..a61d6df6e5f6 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -424,6 +424,10 @@ static int nf_log_proc_dostring(struct ctl_table *table, int write,
if (write) {
struct ctl_table tmp = *table;
+ /* proc_dostring() can append to existing strings, so we need to
+ * initialize it as an empty string.
+ */
+ buf[0] = '\0';
tmp.data = buf;
r = proc_dostring(&tmp, write, buffer, lenp, ppos);
if (r)
@@ -442,14 +446,17 @@ static int nf_log_proc_dostring(struct ctl_table *table, int write,
rcu_assign_pointer(net->nf.nf_loggers[tindex], logger);
mutex_unlock(&nf_log_mutex);
} else {
+ struct ctl_table tmp = *table;
+
+ tmp.data = buf;
mutex_lock(&nf_log_mutex);
logger = nft_log_dereference(net->nf.nf_loggers[tindex]);
if (!logger)
- table->data = "NONE";
+ strlcpy(buf, "NONE", sizeof(buf));
else
- table->data = logger->name;
- r = proc_dostring(table, write, buffer, lenp, ppos);
+ strlcpy(buf, logger->name, sizeof(buf));
mutex_unlock(&nf_log_mutex);
+ r = proc_dostring(&tmp, write, buffer, lenp, ppos);
}
return r;
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 4ccd2988f9db..ea4ba551abb2 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -1243,6 +1243,9 @@ static int nfqnl_recv_unsupp(struct net *net, struct sock *ctnl,
static const struct nla_policy nfqa_cfg_policy[NFQA_CFG_MAX+1] = {
[NFQA_CFG_CMD] = { .len = sizeof(struct nfqnl_msg_config_cmd) },
[NFQA_CFG_PARAMS] = { .len = sizeof(struct nfqnl_msg_config_params) },
+ [NFQA_CFG_QUEUE_MAXLEN] = { .type = NLA_U32 },
+ [NFQA_CFG_MASK] = { .type = NLA_U32 },
+ [NFQA_CFG_FLAGS] = { .type = NLA_U32 },
};
static const struct nf_queue_handler nfqh = {
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 1189b84413d5..393573a99a5a 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2658,7 +2658,7 @@ static const struct proto_ops netlink_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = netlink_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = netlink_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 93fbcafbf388..03f37c4e64fe 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1355,7 +1355,7 @@ static const struct proto_ops nr_proto_ops = {
.socketpair = sock_no_socketpair,
.accept = nr_accept,
.getname = nr_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = nr_ioctl,
.listen = nr_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index ab5bb14b49af..ea0c0c6f1874 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -548,13 +548,16 @@ static inline __poll_t llcp_accept_poll(struct sock *parent)
return 0;
}
-static __poll_t llcp_sock_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t llcp_sock_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk;
__poll_t mask = 0;
pr_debug("%p\n", sk);
+ sock_poll_wait(file, sk_sleep(sk), wait);
+
if (sk->sk_state == LLCP_LISTEN)
return llcp_accept_poll(sk);
@@ -896,7 +899,7 @@ static const struct proto_ops llcp_sock_ops = {
.socketpair = sock_no_socketpair,
.accept = llcp_sock_accept,
.getname = llcp_sock_getname,
- .poll_mask = llcp_sock_poll_mask,
+ .poll = llcp_sock_poll,
.ioctl = sock_no_ioctl,
.listen = llcp_sock_listen,
.shutdown = sock_no_shutdown,
@@ -916,7 +919,7 @@ static const struct proto_ops llcp_rawsock_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = llcp_sock_getname,
- .poll_mask = llcp_sock_poll_mask,
+ .poll = llcp_sock_poll,
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c
index 60c322531c49..e2188deb08dc 100644
--- a/net/nfc/rawsock.c
+++ b/net/nfc/rawsock.c
@@ -284,7 +284,7 @@ static const struct proto_ops rawsock_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
@@ -304,7 +304,7 @@ static const struct proto_ops rawsock_raw_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index ff8e7e245c37..57634bc3da74 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4076,11 +4076,12 @@ static int packet_ioctl(struct socket *sock, unsigned int cmd,
return 0;
}
-static __poll_t packet_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t packet_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk;
struct packet_sock *po = pkt_sk(sk);
- __poll_t mask = datagram_poll_mask(sock, events);
+ __poll_t mask = datagram_poll(file, sock, wait);
spin_lock_bh(&sk->sk_receive_queue.lock);
if (po->rx_ring.pg_vec) {
@@ -4422,7 +4423,7 @@ static const struct proto_ops packet_ops_spkt = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = packet_getname_spkt,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = packet_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
@@ -4443,7 +4444,7 @@ static const struct proto_ops packet_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = packet_getname,
- .poll_mask = packet_poll_mask,
+ .poll = packet_poll,
.ioctl = packet_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index c295c4e20f01..30187990257f 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -340,12 +340,15 @@ static int pn_socket_getname(struct socket *sock, struct sockaddr *addr,
return sizeof(struct sockaddr_pn);
}
-static __poll_t pn_socket_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t pn_socket_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk;
struct pep_sock *pn = pep_sk(sk);
__poll_t mask = 0;
+ poll_wait(file, sk_sleep(sk), wait);
+
if (sk->sk_state == TCP_CLOSE)
return EPOLLERR;
if (!skb_queue_empty(&sk->sk_receive_queue))
@@ -445,7 +448,7 @@ const struct proto_ops phonet_dgram_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = pn_socket_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = pn_socket_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
@@ -470,7 +473,7 @@ const struct proto_ops phonet_stream_ops = {
.socketpair = sock_no_socketpair,
.accept = pn_socket_accept,
.getname = pn_socket_getname,
- .poll_mask = pn_socket_poll_mask,
+ .poll = pn_socket_poll,
.ioctl = pn_socket_ioctl,
.listen = pn_socket_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index 1b5025ea5b04..2aa07b547b16 100644
--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -1023,7 +1023,7 @@ static const struct proto_ops qrtr_proto_ops = {
.recvmsg = qrtr_recvmsg,
.getname = qrtr_getname,
.ioctl = qrtr_ioctl,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
diff --git a/net/rds/connection.c b/net/rds/connection.c
index abef75da89a7..cfb05953b0e5 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -659,11 +659,19 @@ static void rds_conn_info(struct socket *sock, unsigned int len,
int rds_conn_init(void)
{
+ int ret;
+
+ ret = rds_loop_net_init(); /* register pernet callback */
+ if (ret)
+ return ret;
+
rds_conn_slab = kmem_cache_create("rds_connection",
sizeof(struct rds_connection),
0, 0, NULL);
- if (!rds_conn_slab)
+ if (!rds_conn_slab) {
+ rds_loop_net_exit();
return -ENOMEM;
+ }
rds_info_register_func(RDS_INFO_CONNECTIONS, rds_conn_info);
rds_info_register_func(RDS_INFO_SEND_MESSAGES,
@@ -676,6 +684,7 @@ int rds_conn_init(void)
void rds_conn_exit(void)
{
+ rds_loop_net_exit(); /* unregister pernet callback */
rds_loop_exit();
WARN_ON(!hlist_empty(rds_conn_hash));
diff --git a/net/rds/loop.c b/net/rds/loop.c
index dac6218a460e..feea1f96ee2a 100644
--- a/net/rds/loop.c
+++ b/net/rds/loop.c
@@ -33,6 +33,8 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/in.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
#include "rds_single_path.h"
#include "rds.h"
@@ -40,6 +42,17 @@
static DEFINE_SPINLOCK(loop_conns_lock);
static LIST_HEAD(loop_conns);
+static atomic_t rds_loop_unloading = ATOMIC_INIT(0);
+
+static void rds_loop_set_unloading(void)
+{
+ atomic_set(&rds_loop_unloading, 1);
+}
+
+static bool rds_loop_is_unloading(struct rds_connection *conn)
+{
+ return atomic_read(&rds_loop_unloading) != 0;
+}
/*
* This 'loopback' transport is a special case for flows that originate
@@ -165,6 +178,8 @@ void rds_loop_exit(void)
struct rds_loop_connection *lc, *_lc;
LIST_HEAD(tmp_list);
+ rds_loop_set_unloading();
+ synchronize_rcu();
/* avoid calling conn_destroy with irqs off */
spin_lock_irq(&loop_conns_lock);
list_splice(&loop_conns, &tmp_list);
@@ -177,6 +192,46 @@ void rds_loop_exit(void)
}
}
+static void rds_loop_kill_conns(struct net *net)
+{
+ struct rds_loop_connection *lc, *_lc;
+ LIST_HEAD(tmp_list);
+
+ spin_lock_irq(&loop_conns_lock);
+ list_for_each_entry_safe(lc, _lc, &loop_conns, loop_node) {
+ struct net *c_net = read_pnet(&lc->conn->c_net);
+
+ if (net != c_net)
+ continue;
+ list_move_tail(&lc->loop_node, &tmp_list);
+ }
+ spin_unlock_irq(&loop_conns_lock);
+
+ list_for_each_entry_safe(lc, _lc, &tmp_list, loop_node) {
+ WARN_ON(lc->conn->c_passive);
+ rds_conn_destroy(lc->conn);
+ }
+}
+
+static void __net_exit rds_loop_exit_net(struct net *net)
+{
+ rds_loop_kill_conns(net);
+}
+
+static struct pernet_operations rds_loop_net_ops = {
+ .exit = rds_loop_exit_net,
+};
+
+int rds_loop_net_init(void)
+{
+ return register_pernet_device(&rds_loop_net_ops);
+}
+
+void rds_loop_net_exit(void)
+{
+ unregister_pernet_device(&rds_loop_net_ops);
+}
+
/*
* This is missing .xmit_* because loop doesn't go through generic
* rds_send_xmit() and doesn't call rds_recv_incoming(). .listen_stop and
@@ -194,4 +249,5 @@ struct rds_transport rds_loop_transport = {
.inc_free = rds_loop_inc_free,
.t_name = "loopback",
.t_type = RDS_TRANS_LOOP,
+ .t_unloading = rds_loop_is_unloading,
};
diff --git a/net/rds/loop.h b/net/rds/loop.h
index 469fa4b2da4f..bbc8cdd030df 100644
--- a/net/rds/loop.h
+++ b/net/rds/loop.h
@@ -5,6 +5,8 @@
/* loop.c */
extern struct rds_transport rds_loop_transport;
+int rds_loop_net_init(void);
+void rds_loop_net_exit(void);
void rds_loop_exit(void);
#endif
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index ebe42e7eb456..d00a0ef39a56 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1470,7 +1470,7 @@ static const struct proto_ops rose_proto_ops = {
.socketpair = sock_no_socketpair,
.accept = rose_accept,
.getname = rose_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = rose_ioctl,
.listen = rose_listen,
.shutdown = sock_no_shutdown,
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index 3b1ac93efee2..2b463047dd7b 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -734,11 +734,15 @@ static int rxrpc_getsockopt(struct socket *sock, int level, int optname,
/*
* permit an RxRPC socket to be polled
*/
-static __poll_t rxrpc_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t rxrpc_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk;
struct rxrpc_sock *rx = rxrpc_sk(sk);
- __poll_t mask = 0;
+ __poll_t mask;
+
+ sock_poll_wait(file, sk_sleep(sk), wait);
+ mask = 0;
/* the socket is readable if there are any messages waiting on the Rx
* queue */
@@ -945,7 +949,7 @@ static const struct proto_ops rxrpc_rpc_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = rxrpc_poll_mask,
+ .poll = rxrpc_poll,
.ioctl = sock_no_ioctl,
.listen = rxrpc_listen,
.shutdown = rxrpc_shutdown,
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 7339918a805d..0cd2e764f47f 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -1010,7 +1010,7 @@ static const struct proto_ops inet6_seqpacket_ops = {
.socketpair = sock_no_socketpair,
.accept = inet_accept,
.getname = sctp_getname,
- .poll_mask = sctp_poll_mask,
+ .poll = sctp_poll,
.ioctl = inet6_ioctl,
.listen = sctp_inet_listen,
.shutdown = inet_shutdown,
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 5dffbc493008..67f73d3a1356 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1016,7 +1016,7 @@ static const struct proto_ops inet_seqpacket_ops = {
.socketpair = sock_no_socketpair,
.accept = inet_accept,
.getname = inet_getname, /* Semantics are different. */
- .poll_mask = sctp_poll_mask,
+ .poll = sctp_poll,
.ioctl = inet_ioctl,
.listen = sctp_inet_listen,
.shutdown = inet_shutdown, /* Looks harmless. */
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index bf11f9cacb63..0e4c8332771a 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -7765,12 +7765,14 @@ out:
* here, again, by modeling the current TCP/UDP code. We don't have
* a good way to test with it yet.
*/
-__poll_t sctp_poll_mask(struct socket *sock, __poll_t events)
+__poll_t sctp_poll(struct file *file, struct socket *sock, poll_table *wait)
{
struct sock *sk = sock->sk;
struct sctp_sock *sp = sctp_sk(sk);
__poll_t mask;
+ poll_wait(file, sk_sleep(sk), wait);
+
sock_rps_record_flow(sk);
/* A TCP-style listening socket becomes readable when the accept queue
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index cbbb947dbfcf..f3fdf3714f8b 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -47,6 +47,7 @@ static DEFINE_MUTEX(smc_create_lgr_pending); /* serialize link group
*/
static void smc_tcp_listen_work(struct work_struct *);
+static void smc_connect_work(struct work_struct *);
static void smc_set_keepalive(struct sock *sk, int val)
{
@@ -124,6 +125,12 @@ static int smc_release(struct socket *sock)
goto out;
smc = smc_sk(sk);
+
+ /* cleanup for a dangling non-blocking connect */
+ flush_work(&smc->connect_work);
+ kfree(smc->connect_info);
+ smc->connect_info = NULL;
+
if (sk->sk_state == SMC_LISTEN)
/* smc_close_non_accepted() is called and acquires
* sock lock for child sockets again
@@ -188,6 +195,7 @@ static struct sock *smc_sock_alloc(struct net *net, struct socket *sock,
sk->sk_protocol = protocol;
smc = smc_sk(sk);
INIT_WORK(&smc->tcp_listen_work, smc_tcp_listen_work);
+ INIT_WORK(&smc->connect_work, smc_connect_work);
INIT_DELAYED_WORK(&smc->conn.tx_work, smc_tx_work);
INIT_LIST_HEAD(&smc->accept_q);
spin_lock_init(&smc->accept_q_lock);
@@ -707,6 +715,35 @@ static int __smc_connect(struct smc_sock *smc)
return 0;
}
+static void smc_connect_work(struct work_struct *work)
+{
+ struct smc_sock *smc = container_of(work, struct smc_sock,
+ connect_work);
+ int rc;
+
+ lock_sock(&smc->sk);
+ rc = kernel_connect(smc->clcsock, &smc->connect_info->addr,
+ smc->connect_info->alen, smc->connect_info->flags);
+ if (smc->clcsock->sk->sk_err) {
+ smc->sk.sk_err = smc->clcsock->sk->sk_err;
+ goto out;
+ }
+ if (rc < 0) {
+ smc->sk.sk_err = -rc;
+ goto out;
+ }
+
+ rc = __smc_connect(smc);
+ if (rc < 0)
+ smc->sk.sk_err = -rc;
+
+out:
+ smc->sk.sk_state_change(&smc->sk);
+ kfree(smc->connect_info);
+ smc->connect_info = NULL;
+ release_sock(&smc->sk);
+}
+
static int smc_connect(struct socket *sock, struct sockaddr *addr,
int alen, int flags)
{
@@ -736,15 +773,32 @@ static int smc_connect(struct socket *sock, struct sockaddr *addr,
smc_copy_sock_settings_to_clc(smc);
tcp_sk(smc->clcsock->sk)->syn_smc = 1;
- rc = kernel_connect(smc->clcsock, addr, alen, flags);
- if (rc)
- goto out;
+ if (flags & O_NONBLOCK) {
+ if (smc->connect_info) {
+ rc = -EALREADY;
+ goto out;
+ }
+ smc->connect_info = kzalloc(alen + 2 * sizeof(int), GFP_KERNEL);
+ if (!smc->connect_info) {
+ rc = -ENOMEM;
+ goto out;
+ }
+ smc->connect_info->alen = alen;
+ smc->connect_info->flags = flags ^ O_NONBLOCK;
+ memcpy(&smc->connect_info->addr, addr, alen);
+ schedule_work(&smc->connect_work);
+ rc = -EINPROGRESS;
+ } else {
+ rc = kernel_connect(smc->clcsock, addr, alen, flags);
+ if (rc)
+ goto out;
- rc = __smc_connect(smc);
- if (rc < 0)
- goto out;
- else
- rc = 0; /* success cases including fallback */
+ rc = __smc_connect(smc);
+ if (rc < 0)
+ goto out;
+ else
+ rc = 0; /* success cases including fallback */
+ }
out:
release_sock(sk);
@@ -1455,39 +1509,23 @@ static __poll_t smc_accept_poll(struct sock *parent)
return mask;
}
-static __poll_t smc_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t smc_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk;
__poll_t mask = 0;
struct smc_sock *smc;
- int rc;
if (!sk)
return EPOLLNVAL;
smc = smc_sk(sock->sk);
- sock_hold(sk);
- lock_sock(sk);
if ((sk->sk_state == SMC_INIT) || smc->use_fallback) {
/* delegate to CLC child sock */
- release_sock(sk);
- mask = smc->clcsock->ops->poll_mask(smc->clcsock, events);
- lock_sock(sk);
+ mask = smc->clcsock->ops->poll(file, smc->clcsock, wait);
sk->sk_err = smc->clcsock->sk->sk_err;
- if (sk->sk_err) {
+ if (sk->sk_err)
mask |= EPOLLERR;
- } else {
- /* if non-blocking connect finished ... */
- if (sk->sk_state == SMC_INIT &&
- mask & EPOLLOUT &&
- smc->clcsock->sk->sk_state != TCP_CLOSE) {
- rc = __smc_connect(smc);
- if (rc < 0)
- mask |= EPOLLERR;
- /* success cases including fallback */
- mask |= EPOLLOUT | EPOLLWRNORM;
- }
- }
} else {
if (sk->sk_err)
mask |= EPOLLERR;
@@ -1516,8 +1554,6 @@ static __poll_t smc_poll_mask(struct socket *sock, __poll_t events)
mask |= EPOLLPRI;
}
- release_sock(sk);
- sock_put(sk);
return mask;
}
@@ -1801,7 +1837,7 @@ static const struct proto_ops smc_sock_ops = {
.socketpair = sock_no_socketpair,
.accept = smc_accept,
.getname = smc_getname,
- .poll_mask = smc_poll_mask,
+ .poll = smc_poll,
.ioctl = smc_ioctl,
.listen = smc_listen,
.shutdown = smc_shutdown,
diff --git a/net/smc/smc.h b/net/smc/smc.h
index 8c6231011779..be20acd7b5ab 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h
@@ -190,11 +190,19 @@ struct smc_connection {
u64 peer_token; /* SMC-D token of peer */
};
+struct smc_connect_info {
+ int flags;
+ int alen;
+ struct sockaddr addr;
+};
+
struct smc_sock { /* smc sock container */
struct sock sk;
struct socket *clcsock; /* internal tcp socket */
struct smc_connection conn; /* smc connection */
struct smc_sock *listen_smc; /* listen parent */
+ struct smc_connect_info *connect_info; /* connect address & flags */
+ struct work_struct connect_work; /* handle non-blocking connect*/
struct work_struct tcp_listen_work;/* handle tcp socket accepts */
struct work_struct smc_listen_work;/* prepare new accept socket */
struct list_head accept_q; /* sockets to be accepted */
diff --git a/net/socket.c b/net/socket.c
index 8a109012608a..85633622c94d 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -117,10 +117,8 @@ static ssize_t sock_write_iter(struct kiocb *iocb, struct iov_iter *from);
static int sock_mmap(struct file *file, struct vm_area_struct *vma);
static int sock_close(struct inode *inode, struct file *file);
-static struct wait_queue_head *sock_get_poll_head(struct file *file,
- __poll_t events);
-static __poll_t sock_poll_mask(struct file *file, __poll_t);
-static __poll_t sock_poll(struct file *file, struct poll_table_struct *wait);
+static __poll_t sock_poll(struct file *file,
+ struct poll_table_struct *wait);
static long sock_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
#ifdef CONFIG_COMPAT
static long compat_sock_ioctl(struct file *file,
@@ -143,8 +141,6 @@ static const struct file_operations socket_file_ops = {
.llseek = no_llseek,
.read_iter = sock_read_iter,
.write_iter = sock_write_iter,
- .get_poll_head = sock_get_poll_head,
- .poll_mask = sock_poll_mask,
.poll = sock_poll,
.unlocked_ioctl = sock_ioctl,
#ifdef CONFIG_COMPAT
@@ -1130,48 +1126,16 @@ out_release:
}
EXPORT_SYMBOL(sock_create_lite);
-static struct wait_queue_head *sock_get_poll_head(struct file *file,
- __poll_t events)
-{
- struct socket *sock = file->private_data;
-
- if (!sock->ops->poll_mask)
- return NULL;
- sock_poll_busy_loop(sock, events);
- return sk_sleep(sock->sk);
-}
-
-static __poll_t sock_poll_mask(struct file *file, __poll_t events)
-{
- struct socket *sock = file->private_data;
-
- /*
- * We need to be sure we are in sync with the socket flags modification.
- *
- * This memory barrier is paired in the wq_has_sleeper.
- */
- smp_mb();
-
- /* this socket can poll_ll so tell the system call */
- return sock->ops->poll_mask(sock, events) |
- (sk_can_busy_loop(sock->sk) ? POLL_BUSY_LOOP : 0);
-}
-
/* No kernel lock held - perfect */
static __poll_t sock_poll(struct file *file, poll_table *wait)
{
struct socket *sock = file->private_data;
- __poll_t events = poll_requested_events(wait), mask = 0;
-
- if (sock->ops->poll) {
- sock_poll_busy_loop(sock, events);
- mask = sock->ops->poll(file, sock, wait);
- } else if (sock->ops->poll_mask) {
- sock_poll_wait(file, sock_get_poll_head(file, events), wait);
- mask = sock->ops->poll_mask(sock, events);
- }
+ __poll_t events = poll_requested_events(wait);
- return mask | sock_poll_busy_flag(sock);
+ sock_poll_busy_loop(sock, events);
+ if (!sock->ops->poll)
+ return 0;
+ return sock->ops->poll(file, sock, wait) | sock_poll_busy_flag(sock);
}
static int sock_mmap(struct file *file, struct vm_area_struct *vma)
diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c
index 4f40a90ca016..3a512936eea9 100644
--- a/net/strparser/strparser.c
+++ b/net/strparser/strparser.c
@@ -35,7 +35,6 @@ struct _strp_msg {
*/
struct strp_msg strp;
int accum_len;
- int early_eaten;
};
static inline struct _strp_msg *_strp_msg(struct sk_buff *skb)
@@ -115,20 +114,6 @@ static int __strp_recv(read_descriptor_t *desc, struct sk_buff *orig_skb,
head = strp->skb_head;
if (head) {
/* Message already in progress */
-
- stm = _strp_msg(head);
- if (unlikely(stm->early_eaten)) {
- /* Already some number of bytes on the receive sock
- * data saved in skb_head, just indicate they
- * are consumed.
- */
- eaten = orig_len <= stm->early_eaten ?
- orig_len : stm->early_eaten;
- stm->early_eaten -= eaten;
-
- return eaten;
- }
-
if (unlikely(orig_offset)) {
/* Getting data with a non-zero offset when a message is
* in progress is not expected. If it does happen, we
@@ -301,9 +286,9 @@ static int __strp_recv(read_descriptor_t *desc, struct sk_buff *orig_skb,
}
stm->accum_len += cand_len;
+ eaten += cand_len;
strp->need_bytes = stm->strp.full_len -
stm->accum_len;
- stm->early_eaten = cand_len;
STRP_STATS_ADD(strp->stats.bytes, cand_len);
desc->count = 0; /* Stop reading socket */
break;
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 840dd995f631..3d21414ba357 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -692,9 +692,10 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr,
}
/**
- * tipc_poll - read pollmask
+ * tipc_poll - read and possibly block on pollmask
* @file: file structure associated with the socket
* @sock: socket for which to calculate the poll bits
+ * @wait: ???
*
* Returns pollmask value
*
@@ -708,12 +709,15 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr,
* imply that the operation will succeed, merely that it should be performed
* and will not block.
*/
-static __poll_t tipc_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t tipc_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk;
struct tipc_sock *tsk = tipc_sk(sk);
__poll_t revents = 0;
+ sock_poll_wait(file, sk_sleep(sk), wait);
+
if (sk->sk_shutdown & RCV_SHUTDOWN)
revents |= EPOLLRDHUP | EPOLLIN | EPOLLRDNORM;
if (sk->sk_shutdown == SHUTDOWN_MASK)
@@ -3033,7 +3037,7 @@ static const struct proto_ops msg_ops = {
.socketpair = tipc_socketpair,
.accept = sock_no_accept,
.getname = tipc_getname,
- .poll_mask = tipc_poll_mask,
+ .poll = tipc_poll,
.ioctl = tipc_ioctl,
.listen = sock_no_listen,
.shutdown = tipc_shutdown,
@@ -3054,7 +3058,7 @@ static const struct proto_ops packet_ops = {
.socketpair = tipc_socketpair,
.accept = tipc_accept,
.getname = tipc_getname,
- .poll_mask = tipc_poll_mask,
+ .poll = tipc_poll,
.ioctl = tipc_ioctl,
.listen = tipc_listen,
.shutdown = tipc_shutdown,
@@ -3075,7 +3079,7 @@ static const struct proto_ops stream_ops = {
.socketpair = tipc_socketpair,
.accept = tipc_accept,
.getname = tipc_getname,
- .poll_mask = tipc_poll_mask,
+ .poll = tipc_poll,
.ioctl = tipc_ioctl,
.listen = tipc_listen,
.shutdown = tipc_shutdown,
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index a127d61e8af9..301f22430469 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -712,7 +712,7 @@ static int __init tls_register(void)
build_protos(tls_prots[TLSV4], &tcp_prot);
tls_sw_proto_ops = inet_stream_ops;
- tls_sw_proto_ops.poll_mask = tls_sw_poll_mask;
+ tls_sw_proto_ops.poll = tls_sw_poll;
tls_sw_proto_ops.splice_read = tls_sw_splice_read;
#ifdef CONFIG_TLS_DEVICE
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 173d8b89072d..0d670c8adf18 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -919,22 +919,23 @@ splice_read_end:
return copied ? : err;
}
-__poll_t tls_sw_poll_mask(struct socket *sock, __poll_t events)
+unsigned int tls_sw_poll(struct file *file, struct socket *sock,
+ struct poll_table_struct *wait)
{
+ unsigned int ret;
struct sock *sk = sock->sk;
struct tls_context *tls_ctx = tls_get_ctx(sk);
struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
- __poll_t mask;
- /* Grab EPOLLOUT and EPOLLHUP from the underlying socket */
- mask = ctx->sk_poll_mask(sock, events);
+ /* Grab POLLOUT and POLLHUP from the underlying socket */
+ ret = ctx->sk_poll(file, sock, wait);
- /* Clear EPOLLIN bits, and set based on recv_pkt */
- mask &= ~(EPOLLIN | EPOLLRDNORM);
+ /* Clear POLLIN bits, and set based on recv_pkt */
+ ret &= ~(POLLIN | POLLRDNORM);
if (ctx->recv_pkt)
- mask |= EPOLLIN | EPOLLRDNORM;
+ ret |= POLLIN | POLLRDNORM;
- return mask;
+ return ret;
}
static int tls_read_size(struct strparser *strp, struct sk_buff *skb)
@@ -1194,7 +1195,7 @@ int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx)
sk->sk_data_ready = tls_data_ready;
write_unlock_bh(&sk->sk_callback_lock);
- sw_ctx_rx->sk_poll_mask = sk->sk_socket->ops->poll_mask;
+ sw_ctx_rx->sk_poll = sk->sk_socket->ops->poll;
strp_check_rcv(&sw_ctx_rx->strp);
}
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 95b02a71fd47..e5473c03d667 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -638,8 +638,9 @@ static int unix_stream_connect(struct socket *, struct sockaddr *,
static int unix_socketpair(struct socket *, struct socket *);
static int unix_accept(struct socket *, struct socket *, int, bool);
static int unix_getname(struct socket *, struct sockaddr *, int);
-static __poll_t unix_poll_mask(struct socket *, __poll_t);
-static __poll_t unix_dgram_poll_mask(struct socket *, __poll_t);
+static __poll_t unix_poll(struct file *, struct socket *, poll_table *);
+static __poll_t unix_dgram_poll(struct file *, struct socket *,
+ poll_table *);
static int unix_ioctl(struct socket *, unsigned int, unsigned long);
static int unix_shutdown(struct socket *, int);
static int unix_stream_sendmsg(struct socket *, struct msghdr *, size_t);
@@ -680,7 +681,7 @@ static const struct proto_ops unix_stream_ops = {
.socketpair = unix_socketpair,
.accept = unix_accept,
.getname = unix_getname,
- .poll_mask = unix_poll_mask,
+ .poll = unix_poll,
.ioctl = unix_ioctl,
.listen = unix_listen,
.shutdown = unix_shutdown,
@@ -703,7 +704,7 @@ static const struct proto_ops unix_dgram_ops = {
.socketpair = unix_socketpair,
.accept = sock_no_accept,
.getname = unix_getname,
- .poll_mask = unix_dgram_poll_mask,
+ .poll = unix_dgram_poll,
.ioctl = unix_ioctl,
.listen = sock_no_listen,
.shutdown = unix_shutdown,
@@ -725,7 +726,7 @@ static const struct proto_ops unix_seqpacket_ops = {
.socketpair = unix_socketpair,
.accept = unix_accept,
.getname = unix_getname,
- .poll_mask = unix_dgram_poll_mask,
+ .poll = unix_dgram_poll,
.ioctl = unix_ioctl,
.listen = unix_listen,
.shutdown = unix_shutdown,
@@ -2629,10 +2630,13 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
return err;
}
-static __poll_t unix_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t unix_poll(struct file *file, struct socket *sock, poll_table *wait)
{
struct sock *sk = sock->sk;
- __poll_t mask = 0;
+ __poll_t mask;
+
+ sock_poll_wait(file, sk_sleep(sk), wait);
+ mask = 0;
/* exceptional events? */
if (sk->sk_err)
@@ -2661,11 +2665,15 @@ static __poll_t unix_poll_mask(struct socket *sock, __poll_t events)
return mask;
}
-static __poll_t unix_dgram_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t unix_dgram_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
struct sock *sk = sock->sk, *other;
- int writable;
- __poll_t mask = 0;
+ unsigned int writable;
+ __poll_t mask;
+
+ sock_poll_wait(file, sk_sleep(sk), wait);
+ mask = 0;
/* exceptional events? */
if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
@@ -2691,7 +2699,7 @@ static __poll_t unix_dgram_poll_mask(struct socket *sock, __poll_t events)
}
/* No write status requested, avoid expensive OUT tests. */
- if (!(events & (EPOLLWRBAND|EPOLLWRNORM|EPOLLOUT)))
+ if (!(poll_requested_events(wait) & (EPOLLWRBAND|EPOLLWRNORM|EPOLLOUT)))
return mask;
writable = unix_writable(sk);
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index bb5d5fa68c35..c1076c19b858 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -850,11 +850,18 @@ static int vsock_shutdown(struct socket *sock, int mode)
return err;
}
-static __poll_t vsock_poll_mask(struct socket *sock, __poll_t events)
+static __poll_t vsock_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
{
- struct sock *sk = sock->sk;
- struct vsock_sock *vsk = vsock_sk(sk);
- __poll_t mask = 0;
+ struct sock *sk;
+ __poll_t mask;
+ struct vsock_sock *vsk;
+
+ sk = sock->sk;
+ vsk = vsock_sk(sk);
+
+ poll_wait(file, sk_sleep(sk), wait);
+ mask = 0;
if (sk->sk_err)
/* Signify that there has been an error on this socket. */
@@ -1084,7 +1091,7 @@ static const struct proto_ops vsock_dgram_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = vsock_getname,
- .poll_mask = vsock_poll_mask,
+ .poll = vsock_poll,
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = vsock_shutdown,
@@ -1842,7 +1849,7 @@ static const struct proto_ops vsock_stream_ops = {
.socketpair = sock_no_socketpair,
.accept = vsock_accept,
.getname = vsock_getname,
- .poll_mask = vsock_poll_mask,
+ .poll = vsock_poll,
.ioctl = sock_no_ioctl,
.listen = vsock_listen,
.shutdown = vsock_shutdown,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 8db59129c095..e4e5f025d16b 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6329,7 +6329,7 @@ do { \
nl80211_check_s32);
/*
* Check HT operation mode based on
- * IEEE 802.11 2012 8.4.2.59 HT Operation element.
+ * IEEE 802.11-2016 9.4.2.57 HT Operation element.
*/
if (tb[NL80211_MESHCONF_HT_OPMODE]) {
ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
@@ -6339,22 +6339,9 @@ do { \
IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
return -EINVAL;
- if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
- (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
- return -EINVAL;
+ /* NON_HT_STA bit is reserved, but some programs set it */
+ ht_opmode &= ~IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT;
- switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
- case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
- case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
- if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
- return -EINVAL;
- break;
- case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
- case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
- if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
- return -EINVAL;
- break;
- }
cfg->ht_opmode = ht_opmode;
mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
}
@@ -11068,9 +11055,12 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
rem) {
u8 *mask_pat;
- nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
- nl80211_packet_pattern_policy,
- info->extack);
+ err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
+ nl80211_packet_pattern_policy,
+ info->extack);
+ if (err)
+ goto error;
+
err = -EINVAL;
if (!pat_tb[NL80211_PKTPAT_MASK] ||
!pat_tb[NL80211_PKTPAT_PATTERN])
@@ -11319,8 +11309,11 @@ static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
rem) {
u8 *mask_pat;
- nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
- nl80211_packet_pattern_policy, NULL);
+ err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
+ nl80211_packet_pattern_policy, NULL);
+ if (err)
+ return err;
+
if (!pat_tb[NL80211_PKTPAT_MASK] ||
!pat_tb[NL80211_PKTPAT_PATTERN])
return -EINVAL;
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index f93365ae0fdd..d49aa79b7997 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1750,7 +1750,7 @@ static const struct proto_ops x25_proto_ops = {
.socketpair = sock_no_socketpair,
.accept = x25_accept,
.getname = x25_getname,
- .poll_mask = datagram_poll_mask,
+ .poll = datagram_poll,
.ioctl = x25_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = compat_x25_ioctl,
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index 3b3410ada097..59fb7d3c36a3 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -303,9 +303,10 @@ static int xsk_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len)
return (xs->zc) ? xsk_zc_xmit(sk) : xsk_generic_xmit(sk, m, total_len);
}
-static __poll_t xsk_poll_mask(struct socket *sock, __poll_t events)
+static unsigned int xsk_poll(struct file *file, struct socket *sock,
+ struct poll_table_struct *wait)
{
- __poll_t mask = datagram_poll_mask(sock, events);
+ unsigned int mask = datagram_poll(file, sock, wait);
struct sock *sk = sock->sk;
struct xdp_sock *xs = xdp_sk(sk);
@@ -696,7 +697,7 @@ static const struct proto_ops xsk_proto_ops = {
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.getname = sock_no_getname,
- .poll_mask = xsk_poll_mask,
+ .poll = xsk_poll,
.ioctl = sock_no_ioctl,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,