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-rw-r--r--net/ipv4/Kconfig1
-rw-r--r--net/ipv4/af_inet.c8
-rw-r--r--net/ipv4/ah4.c1
-rw-r--r--net/ipv4/arp.c6
-rw-r--r--net/ipv4/bpfilter/Makefile1
-rw-r--r--net/ipv4/bpfilter/sockopt.c6
-rw-r--r--net/ipv4/cipso_ipv4.c16
-rw-r--r--net/ipv4/datagram.c6
-rw-r--r--net/ipv4/devinet.c6
-rw-r--r--net/ipv4/esp4.c1
-rw-r--r--net/ipv4/fib_frontend.c6
-rw-r--r--net/ipv4/fib_rules.c6
-rw-r--r--net/ipv4/fib_semantics.c6
-rw-r--r--net/ipv4/fib_trie.c14
-rw-r--r--net/ipv4/fou.c1
-rw-r--r--net/ipv4/gre_demux.c7
-rw-r--r--net/ipv4/gre_offload.c6
-rw-r--r--net/ipv4/icmp.c7
-rw-r--r--net/ipv4/igmp.c53
-rw-r--r--net/ipv4/inet_connection_sock.c6
-rw-r--r--net/ipv4/inet_diag.c6
-rw-r--r--net/ipv4/inet_fragment.c6
-rw-r--r--net/ipv4/inet_hashtables.c6
-rw-r--r--net/ipv4/inet_timewait_sock.c1
-rw-r--r--net/ipv4/ip_gre.c7
-rw-r--r--net/ipv4/ip_input.c9
-rw-r--r--net/ipv4/ip_output.c5
-rw-r--r--net/ipv4/ip_sockglue.c2
-rw-r--r--net/ipv4/ip_vti.c7
-rw-r--r--net/ipv4/ipcomp.c6
-rw-r--r--net/ipv4/ipip.c7
-rw-r--r--net/ipv4/ipmr.c7
-rw-r--r--net/ipv4/metrics.c1
-rw-r--r--net/ipv4/netfilter/Kconfig1
-rw-r--r--net/ipv4/netfilter/arp_tables.c1
-rw-r--r--net/ipv4/netfilter/arpt_mangle.c1
-rw-r--r--net/ipv4/netfilter/arptable_filter.c1
-rw-r--r--net/ipv4/netfilter/iptable_raw.c1
-rw-r--r--net/ipv4/netfilter/nf_dup_ipv4.c5
-rw-r--r--net/ipv4/netfilter/nf_flow_table_ipv4.c1
-rw-r--r--net/ipv4/netfilter/nf_nat_pptp.c1
-rw-r--r--net/ipv4/netfilter/nf_nat_snmp_basic_main.c12
-rw-r--r--net/ipv4/netfilter/nft_fib_ipv4.c23
-rw-r--r--net/ipv4/netlink.c1
-rw-r--r--net/ipv4/ping.c9
-rw-r--r--net/ipv4/proc.c6
-rw-r--r--net/ipv4/protocol.c6
-rw-r--r--net/ipv4/raw.c8
-rw-r--r--net/ipv4/raw_diag.c1
-rw-r--r--net/ipv4/route.c6
-rw-r--r--net/ipv4/syncookies.c6
-rw-r--r--net/ipv4/tcp.c8
-rw-r--r--net/ipv4/tcp_bic.c1
-rw-r--r--net/ipv4/tcp_bpf.c7
-rw-r--r--net/ipv4/tcp_cdg.c1
-rw-r--r--net/ipv4/tcp_cong.c1
-rw-r--r--net/ipv4/tcp_cubic.c1
-rw-r--r--net/ipv4/tcp_dctcp.c6
-rw-r--r--net/ipv4/tcp_diag.c6
-rw-r--r--net/ipv4/tcp_highspeed.c1
-rw-r--r--net/ipv4/tcp_htcp.c1
-rw-r--r--net/ipv4/tcp_hybla.c1
-rw-r--r--net/ipv4/tcp_illinois.c1
-rw-r--r--net/ipv4/tcp_input.c5
-rw-r--r--net/ipv4/tcp_ipv4.c7
-rw-r--r--net/ipv4/tcp_lp.c1
-rw-r--r--net/ipv4/tcp_minisocks.c1
-rw-r--r--net/ipv4/tcp_nv.c1
-rw-r--r--net/ipv4/tcp_offload.c6
-rw-r--r--net/ipv4/tcp_output.c1
-rw-r--r--net/ipv4/tcp_rate.c1
-rw-r--r--net/ipv4/tcp_scalable.c1
-rw-r--r--net/ipv4/tcp_timer.c1
-rw-r--r--net/ipv4/tcp_ulp.c1
-rw-r--r--net/ipv4/tcp_vegas.c1
-rw-r--r--net/ipv4/tcp_veno.c1
-rw-r--r--net/ipv4/tcp_westwood.c1
-rw-r--r--net/ipv4/tcp_yeah.c1
-rw-r--r--net/ipv4/tunnel4.c1
-rw-r--r--net/ipv4/udp.c9
-rw-r--r--net/ipv4/udp_diag.c6
-rw-r--r--net/ipv4/udp_offload.c6
-rw-r--r--net/ipv4/udp_tunnel.c1
-rw-r--r--net/ipv4/udplite.c5
-rw-r--r--net/ipv4/xfrm4_output.c6
-rw-r--r--net/ipv4/xfrm4_protocol.c6
-rw-r--r--net/ipv4/xfrm4_tunnel.c1
87 files changed, 135 insertions, 295 deletions
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 8108e97d4285..974de4d20f25 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
#
# IP configuration
#
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 5183a2daba64..52bdb881a506 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -58,11 +59,6 @@
* Some other random speedups.
* Cyrus Durgin : Cleaned up file for kmod hacks.
* Andi Kleen : Fix inet_stream_connect TCP race.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) "IPv4: " fmt
@@ -428,8 +424,8 @@ int inet_release(struct socket *sock)
if (sock_flag(sk, SOCK_LINGER) &&
!(current->flags & PF_EXITING))
timeout = sk->sk_lingertime;
- sock->sk = NULL;
sk->sk_prot->close(sk, timeout);
+ sock->sk = NULL;
}
return 0;
}
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index c01fa791260d..9c3afd550612 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#define pr_fmt(fmt) "IPsec: " fmt
#include <crypto/algapi.h>
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 850a6f13a082..05eb42f347e8 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* linux/net/ipv4/arp.c
*
* Copyright (C) 1994 by Florian La Roche
@@ -7,11 +8,6 @@
* high-level addresses) into a low-level hardware address (like an Ethernet
* address).
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* Fixes:
* Alan Cox : Removed the Ethernet assumptions in
* Florian's code
diff --git a/net/ipv4/bpfilter/Makefile b/net/ipv4/bpfilter/Makefile
index e9e42f99725e..00af5305e05a 100644
--- a/net/ipv4/bpfilter/Makefile
+++ b/net/ipv4/bpfilter/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_BPFILTER) += sockopt.o
diff --git a/net/ipv4/bpfilter/sockopt.c b/net/ipv4/bpfilter/sockopt.c
index 15427163a041..0480918bfc7c 100644
--- a/net/ipv4/bpfilter/sockopt.c
+++ b/net/ipv4/bpfilter/sockopt.c
@@ -30,13 +30,11 @@ static int bpfilter_mbox_request(struct sock *sk, int optname,
mutex_lock(&bpfilter_ops.lock);
if (!bpfilter_ops.sockopt) {
mutex_unlock(&bpfilter_ops.lock);
- err = request_module("bpfilter");
+ request_module("bpfilter");
mutex_lock(&bpfilter_ops.lock);
- if (err)
- goto out;
if (!bpfilter_ops.sockopt) {
- err = -ECHILD;
+ err = -ENOPROTOOPT;
goto out;
}
}
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index f0165c5f376b..376882215919 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* CIPSO - Commercial IP Security Option
*
@@ -14,25 +15,10 @@
* http://www.itl.nist.gov/fipspubs/fip188.htm
*
* Author: Paul Moore <paul.moore@hp.com>
- *
*/
/*
* (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
*/
#include <linux/init.h>
diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index 300921417f89..7bd29e694603 100644
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* common UDP/RAW code
* Linux INET implementation
*
* Authors:
* Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/types.h>
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 701c5d113a34..c6bd0f7a020a 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* NET3 IP device support routines.
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* Derived from the IP parts of dev.c 1.0.19
* Authors: Ross Biro
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index fb065a8937ea..b9ae95576084 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#define pr_fmt(fmt) "IPsec: " fmt
#include <crypto/aead.h>
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index b298255f6fdb..e54c2bcbb465 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -6,11 +7,6 @@
* IPv4 Forwarding Information Base: FIB frontend.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/module.h>
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index cfec3af54c8d..a38e86b98e4f 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -8,11 +9,6 @@
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
* Thomas Graf <tgraf@suug.ch>
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* Fixes:
* Rani Assaf : local_rule cannot be deleted
* Marc Boucher : routing by fwmark
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index d3da6a10f86f..b80410673915 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -6,11 +7,6 @@
* IPv4 Forwarding Information Base: semantics.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/uaccess.h>
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 334f723bdf80..868c74771fa9 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1,8 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*
* Robert Olsson <robert.olsson@its.uu.se> Uppsala Universitet
* & Swedish University of Agricultural Sciences.
@@ -18,28 +15,19 @@
* Stefan Nilsson and Matti Tikkanen. Algorithmica, 33(1):19-33, 2002.
* http://www.csc.kth.se/~snilsson/software/dyntrie2/
*
- *
* IP-address lookup using LC-tries. Stefan Nilsson and Gunnar Karlsson
* IEEE Journal on Selected Areas in Communications, 17(6):1083-1092, June 1999
*
- *
* Code from fib_hash has been reused which includes the following header:
*
- *
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* IPv4 FIB: lookup engine and maintenance routines.
*
- *
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* Substantial contributions to this work comes from:
*
* David S. Miller, <davem@davemloft.net>
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index ca95051317ed..30fa771d382a 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/socket.h>
diff --git a/net/ipv4/gre_demux.c b/net/ipv4/gre_demux.c
index 7c4a41dc04bb..293acfb36376 100644
--- a/net/ipv4/gre_demux.c
+++ b/net/ipv4/gre_demux.c
@@ -1,13 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* GRE over IPv4 demultiplexer driver
*
* Authors: Dmitry Kozlov (xeb@mail.ru)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index 6c63524f598a..4de7e962d3da 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* IPV4 GSO/GRO offload support
* Linux INET implementation
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* GRE GSO support
*/
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index f3a5893b1e86..7c857c72aad1 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* NET3: Implementation of the ICMP protocol layer.
*
* Alan Cox, <alan@lxorguk.ukuu.org.uk>
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* Some of the function names and the icmp unreach table for this
* module were derived from [icmp.c 1.0.11 06/02/93] by
* Ross Biro, Fred N. van Kempen, Mark Evans, Alan Cox, Gerhard Koerting.
@@ -59,7 +55,6 @@
*
* - Should use skb_pull() instead of all the manual checking.
* This would also greatly simply some upper layer error handlers. --AK
- *
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 6c2febc39dca..a57f0d69eadb 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Linux NET3: Internet Group Management Protocol [IGMP]
*
@@ -11,11 +12,6 @@
* Authors:
* Alan Cox <alan@lxorguk.ukuu.org.uk>
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* Fixes:
*
* Alan Cox : Added lots of __inline__ to optimise
@@ -188,6 +184,17 @@ static void ip_ma_put(struct ip_mc_list *im)
pmc != NULL; \
pmc = rtnl_dereference(pmc->next_rcu))
+static void ip_sf_list_clear_all(struct ip_sf_list *psf)
+{
+ struct ip_sf_list *next;
+
+ while (psf) {
+ next = psf->sf_next;
+ kfree(psf);
+ psf = next;
+ }
+}
+
#ifdef CONFIG_IP_MULTICAST
/*
@@ -633,6 +640,13 @@ static void igmpv3_clear_zeros(struct ip_sf_list **ppsf)
}
}
+static void kfree_pmc(struct ip_mc_list *pmc)
+{
+ ip_sf_list_clear_all(pmc->sources);
+ ip_sf_list_clear_all(pmc->tomb);
+ kfree(pmc);
+}
+
static void igmpv3_send_cr(struct in_device *in_dev)
{
struct ip_mc_list *pmc, *pmc_prev, *pmc_next;
@@ -669,7 +683,7 @@ static void igmpv3_send_cr(struct in_device *in_dev)
else
in_dev->mc_tomb = pmc_next;
in_dev_put(pmc->interface);
- kfree(pmc);
+ kfree_pmc(pmc);
} else
pmc_prev = pmc;
}
@@ -1215,14 +1229,18 @@ static void igmpv3_del_delrec(struct in_device *in_dev, struct ip_mc_list *im)
im->interface = pmc->interface;
if (im->sfmode == MCAST_INCLUDE) {
im->tomb = pmc->tomb;
+ pmc->tomb = NULL;
+
im->sources = pmc->sources;
+ pmc->sources = NULL;
+
for (psf = im->sources; psf; psf = psf->sf_next)
psf->sf_crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
} else {
im->crcount = in_dev->mr_qrv ?: net->ipv4.sysctl_igmp_qrv;
}
in_dev_put(pmc->interface);
- kfree(pmc);
+ kfree_pmc(pmc);
}
spin_unlock_bh(&im->lock);
}
@@ -1243,21 +1261,18 @@ static void igmpv3_clear_delrec(struct in_device *in_dev)
nextpmc = pmc->next;
ip_mc_clear_src(pmc);
in_dev_put(pmc->interface);
- kfree(pmc);
+ kfree_pmc(pmc);
}
/* clear dead sources, too */
rcu_read_lock();
for_each_pmc_rcu(in_dev, pmc) {
- struct ip_sf_list *psf, *psf_next;
+ struct ip_sf_list *psf;
spin_lock_bh(&pmc->lock);
psf = pmc->tomb;
pmc->tomb = NULL;
spin_unlock_bh(&pmc->lock);
- for (; psf; psf = psf_next) {
- psf_next = psf->sf_next;
- kfree(psf);
- }
+ ip_sf_list_clear_all(psf);
}
rcu_read_unlock();
}
@@ -2123,7 +2138,7 @@ static int ip_mc_add_src(struct in_device *in_dev, __be32 *pmca, int sfmode,
static void ip_mc_clear_src(struct ip_mc_list *pmc)
{
- struct ip_sf_list *psf, *nextpsf, *tomb, *sources;
+ struct ip_sf_list *tomb, *sources;
spin_lock_bh(&pmc->lock);
tomb = pmc->tomb;
@@ -2135,14 +2150,8 @@ static void ip_mc_clear_src(struct ip_mc_list *pmc)
pmc->sfcount[MCAST_EXCLUDE] = 1;
spin_unlock_bh(&pmc->lock);
- for (psf = tomb; psf; psf = nextpsf) {
- nextpsf = psf->sf_next;
- kfree(psf);
- }
- for (psf = sources; psf; psf = nextpsf) {
- nextpsf = psf->sf_next;
- kfree(psf);
- }
+ ip_sf_list_clear_all(tomb);
+ ip_sf_list_clear_all(sources);
}
/* Join a multicast group
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index a175e3e7ae97..13ec7c3a9c49 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -6,11 +7,6 @@
* Support for INET connection oriented protocols.
*
* Authors: See the TCP sources
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or(at your option) any later version.
*/
#include <linux/module.h>
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 5731670c560b..bbb005eb5218 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* inet_diag.c Module for monitoring INET transport protocols sockets.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 737808e27f8b..5ce6969896f5 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* inet fragments management
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* Authors: Pavel Emelyanov <xemul@openvz.org>
* Started as consolidation of ipv4/ip_fragment.c,
* ipv6/reassembly. and ipv6 nf conntrack reassembly
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 942265d65eb3..c4503073248b 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -6,11 +7,6 @@
* Generic INET transport hashtables
*
* Authors: Lotsa people, from code originally in tcp
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/module.h>
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 88c5069b5d20..c411c87ae865 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 4b0526441476..a53a543fe055 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1,13 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Linux NET3: GRE over IP protocol decoder.
*
* Authors: Alexey Kuznetsov (kuznet@ms2.inr.ac.ru)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index ed97724c5e33..1e2392b7c64e 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -14,7 +15,6 @@
* Jorge Cwik, <jorge@laser.satlink.net>
* Arnt Gulbrandsen, <agulbra@nvg.unit.no>
*
- *
* Fixes:
* Alan Cox : Commented a couple of minor bits of surplus code
* Alan Cox : Undefining IP_FORWARD doesn't include the code
@@ -96,8 +96,6 @@
* Jos Vos : Do accounting *before* call_in_firewall
* Willy Konynenberg : Transparent proxying support
*
- *
- *
* To Fix:
* IP fragmentation wants rewriting cleanly. The RFC815 algorithm is much more efficient
* and could be made very efficient with the addition of some virtual memory hacks to permit
@@ -106,11 +104,6 @@
* interleaved copy algorithm so that fragmenting has a one copy overhead. Actual packet
* output should probably do its own fragmentation at the UDP/RAW layer. TCP shouldn't cause
* fragmentation anyway.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) "IPv4: " fmt
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index ac880beda8a7..8c9189a41b13 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -877,7 +878,7 @@ static int __ip_append_data(struct sock *sk,
int csummode = CHECKSUM_NONE;
struct rtable *rt = (struct rtable *)cork->dst;
unsigned int wmem_alloc_delta = 0;
- bool paged, extra_uref;
+ bool paged, extra_uref = false;
u32 tskey = 0;
skb = skb_peek_tail(queue);
@@ -917,7 +918,7 @@ static int __ip_append_data(struct sock *sk,
uarg = sock_zerocopy_realloc(sk, length, skb_zcopy(skb));
if (!uarg)
return -ENOBUFS;
- extra_uref = true;
+ extra_uref = !skb; /* only extra ref if !MSG_MORE */
if (rt->dst.dev->features & NETIF_F_SG &&
csummode == CHECKSUM_PARTIAL) {
paged = true;
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 82f341e84fae..aa3fd61818c4 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -343,6 +343,8 @@ int ip_ra_control(struct sock *sk, unsigned char on,
return -EINVAL;
new_ra = on ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
+ if (on && !new_ra)
+ return -ENOMEM;
mutex_lock(&net->ipv4.ra_mutex);
for (rap = &net->ipv4.ra_chain;
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 254a42e83ff9..cfb025606793 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Linux NET3: IP/IP protocol decoder modified to support
* virtual tunnel interface
*
* Authors:
* Saurabh Mohan (saurabh.mohan@vyatta.com) 05/07/2012
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
*/
/*
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 9119d012ba46..2f4cdcc13d53 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* IP Payload Compression Protocol (IPComp) - RFC3173.
*
* Copyright (c) 2003 James Morris <jmorris@intercode.com.au>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
* Todo:
* - Tunable compression parameters.
* - Compression stats.
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index fe10b9a2efc8..43adfc1641ba 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Linux NET3: IP/IP protocol decoder.
*
@@ -16,12 +17,6 @@
* Carlos Picoto : GRE over IP support
* Alexey Kuznetsov: Reworked. Really, now it is truncated version of ipv4/ip_gre.c.
* I do not want to merge them together.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
*/
/* tunnel.c: an IP tunnel driver
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 2c61e10a60e3..c07bc82cbbe9 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* IP multicast routing support for mrouted 3.6/3.8
*
* (c) 1995 Alan Cox, <alan@lxorguk.ukuu.org.uk>
* Linux Consultancy and Custom Driver Development
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* Fixes:
* Michael Chastain : Incorrect size of copying.
* Alan Cox : Added the cache manager code
@@ -23,7 +19,6 @@
* Carlos Picoto : PIMv1 Support
* Pavlin Ivanov Radoslavov: PIMv2 Registers must checksum only PIM header
* Relax this requirement to work with older peers.
- *
*/
#include <linux/uaccess.h>
diff --git a/net/ipv4/metrics.c b/net/ipv4/metrics.c
index ca9a5fefdefa..3205d5f7c8c9 100644
--- a/net/ipv4/metrics.c
+++ b/net/ipv4/metrics.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/types.h>
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 1412b029f37f..3e6494269501 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
#
# IP netfilter configuration
#
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 2dc83de53f94..214154b47d56 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Packet matching code for ARP packets.
*
diff --git a/net/ipv4/netfilter/arpt_mangle.c b/net/ipv4/netfilter/arpt_mangle.c
index a5e52a9f0a12..87ca2c42359b 100644
--- a/net/ipv4/netfilter/arpt_mangle.c
+++ b/net/ipv4/netfilter/arpt_mangle.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* module that allows mangling of the arp payload */
#include <linux/module.h>
#include <linux/netfilter.h>
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index 8f8713b4388f..c216b9ad3bb2 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Filtering ARP tables module.
*
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index 960625aabf04..6eefde5bc468 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/net/ipv4/netfilter/iptable_raw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* 'raw' table, which is the very first hooked in at PRE_ROUTING and LOCAL_OUT .
*
diff --git a/net/ipv4/netfilter/nf_dup_ipv4.c b/net/ipv4/netfilter/nf_dup_ipv4.c
index 39895b9ddeb9..af3fbf76dbd3 100644
--- a/net/ipv4/netfilter/nf_dup_ipv4.c
+++ b/net/ipv4/netfilter/nf_dup_ipv4.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* (C) 2007 by Sebastian Cla├čen <sebastian.classen@freenet.ag>
* (C) 2007-2010 by Jan Engelhardt <jengelh@medozas.de>
*
* Extracted from xt_TEE.c
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 or later, as
- * published by the Free Software Foundation.
*/
#include <linux/ip.h>
#include <linux/module.h>
diff --git a/net/ipv4/netfilter/nf_flow_table_ipv4.c b/net/ipv4/netfilter/nf_flow_table_ipv4.c
index e1e56d7123d2..012c4047c788 100644
--- a/net/ipv4/netfilter/nf_flow_table_ipv4.c
+++ b/net/ipv4/netfilter/nf_flow_table_ipv4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
diff --git a/net/ipv4/netfilter/nf_nat_pptp.c b/net/ipv4/netfilter/nf_nat_pptp.c
index e17b4ee7604c..b2aeb7bf5dac 100644
--- a/net/ipv4/netfilter/nf_nat_pptp.c
+++ b/net/ipv4/netfilter/nf_nat_pptp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* nf_nat_pptp.c
*
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic_main.c b/net/ipv4/netfilter/nf_nat_snmp_basic_main.c
index 0a8a60c1bf9a..657d2dcec3cc 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic_main.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* nf_nat_snmp_basic.c
*
@@ -25,17 +26,6 @@
*
* Copyright (c) 2000 RP Internet (www.rpi.net.au).
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
* Author: James Morris <jmorris@intercode.com.au>
*
* Copyright (c) 2006-2010 Patrick McHardy <kaber@trash.net>
diff --git a/net/ipv4/netfilter/nft_fib_ipv4.c b/net/ipv4/netfilter/nft_fib_ipv4.c
index 94eb25bc8d7e..c8888e52591f 100644
--- a/net/ipv4/netfilter/nft_fib_ipv4.c
+++ b/net/ipv4/netfilter/nft_fib_ipv4.c
@@ -58,11 +58,6 @@ void nft_fib4_eval_type(const struct nft_expr *expr, struct nft_regs *regs,
}
EXPORT_SYMBOL_GPL(nft_fib4_eval_type);
-static int get_ifindex(const struct net_device *dev)
-{
- return dev ? dev->ifindex : 0;
-}
-
void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
const struct nft_pktinfo *pkt)
{
@@ -94,8 +89,7 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
if (nft_hook(pkt) == NF_INET_PRE_ROUTING &&
nft_fib_is_loopback(pkt->skb, nft_in(pkt))) {
- nft_fib_store_result(dest, priv, pkt,
- nft_in(pkt)->ifindex);
+ nft_fib_store_result(dest, priv, nft_in(pkt));
return;
}
@@ -108,8 +102,7 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
if (ipv4_is_zeronet(iph->saddr)) {
if (ipv4_is_lbcast(iph->daddr) ||
ipv4_is_local_multicast(iph->daddr)) {
- nft_fib_store_result(dest, priv, pkt,
- get_ifindex(pkt->skb->dev));
+ nft_fib_store_result(dest, priv, pkt->skb->dev);
return;
}
}
@@ -150,17 +143,7 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
found = oif;
}
- switch (priv->result) {
- case NFT_FIB_RESULT_OIF:
- *dest = found->ifindex;
- break;
- case NFT_FIB_RESULT_OIFNAME:
- strncpy((char *)dest, found->name, IFNAMSIZ);
- break;
- default:
- WARN_ON_ONCE(1);
- break;
- }
+ nft_fib_store_result(dest, priv, found);
}
EXPORT_SYMBOL_GPL(nft_fib4_eval);
diff --git a/net/ipv4/netlink.c b/net/ipv4/netlink.c
index d8e3a1fb8e82..b920e1bdcf58 100644
--- a/net/ipv4/netlink.c
+++ b/net/ipv4/netlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/types.h>
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 7ccb5f87f70b..9d24ef5c5d8f 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -5,11 +6,6 @@
*
* "Ping" sockets
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* Based on ipv4/udp.c code.
*
* Authors: Vasiliy Kulikov / Openwall (for Linux 2.6),
@@ -17,7 +13,6 @@
*
* Pavel gave all rights to bugs to Vasiliy,
* none of the bugs are Pavel's now.
- *
*/
#include <linux/uaccess.h>
@@ -1113,7 +1108,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
__u16 srcp = ntohs(inet->inet_sport);
seq_printf(f, "%5d: %08X:%04X %08X:%04X"
- " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d",
+ " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u",
bucket, src, srcp, dest, destp, sp->sk_state,
sk_wmem_alloc_get(sp),
sk_rmem_alloc_get(sp),
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index c3610b37bb4c..4370f4246e86 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -25,11 +26,6 @@
* split functions for more readibility.
* Andi Kleen : Add support for /proc/net/netstat
* Arnaldo C. Melo : Convert to seq_file
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/types.h>
#include <net/net_namespace.h>
diff --git a/net/ipv4/protocol.c b/net/ipv4/protocol.c
index 92d249e053be..9a8c0892622b 100644
--- a/net/ipv4/protocol.c
+++ b/net/ipv4/protocol.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -16,11 +17,6 @@
* Richard Colella : Hang on hash collision
* Vince Laviano : Modified inet_del_protocol() to correctly
* maintain copy bit.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/cache.h>
#include <linux/module.h>
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index dc91c27bb788..0b8e06ca75d6 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -30,11 +31,6 @@
* Alan Cox : Added IP_HDRINCL option.
* Alan Cox : Skip broadcast check if BSDism set.
* David S. Miller : New socket lookup architecture.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/types.h>
@@ -1076,7 +1072,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
srcp = inet->inet_num;
seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
- " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d\n",
+ " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u\n",
i, src, srcp, dest, destp, sp->sk_state,
sk_wmem_alloc_get(sp),
sk_rmem_alloc_get(sp),
diff --git a/net/ipv4/raw_diag.c b/net/ipv4/raw_diag.c
index c200065ef9a5..899e34ceb560 100644
--- a/net/ipv4/raw_diag.c
+++ b/net/ipv4/raw_diag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/module.h>
#include <linux/inet_diag.h>
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 11ddc276776e..cee640281e02 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -55,11 +56,6 @@
* Eric Dumazet : hashed spinlocks and rt_check_expire() fixes.
* Ilia Sotnikov : Ignore TOS on PMTUD and Redirect
* Ilia Sotnikov : Removed TOS from hash calculations
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) "IPv4: " fmt
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 008545f63667..535b69326f66 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Syncookies implementation for the Linux kernel
*
* Copyright (C) 1997 Andi Kleen
* Based on ideas by D.J.Bernstein and Eric Schenk.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/tcp.h>
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 1fa15beb8380..f12d500ec85c 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -205,11 +206,6 @@
* Hirokazu Takahashi : Use copy_from_user() instead of
* csum_and_copy_from_user() if possible.
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or(at your option) any later version.
- *
* Description of States:
*
* TCP_SYN_SENT sent a connection request, waiting for ack
@@ -855,7 +851,7 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp,
if (likely(!size)) {
skb = sk->sk_tx_skb_cache;
- if (skb && !skb_cloned(skb)) {
+ if (skb) {
skb->truesize = SKB_TRUESIZE(skb_end_offset(skb));
sk->sk_tx_skb_cache = NULL;
pskb_trim(skb, 0);
diff --git a/net/ipv4/tcp_bic.c b/net/ipv4/tcp_bic.c
index fc3614377413..645cc3009e64 100644
--- a/net/ipv4/tcp_bic.c
+++ b/net/ipv4/tcp_bic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Binary Increase Congestion control for TCP
* Home page:
diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index 1bb7321a256d..3d1e15401384 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -27,7 +27,10 @@ static int tcp_bpf_wait_data(struct sock *sk, struct sk_psock *psock,
int flags, long timeo, int *err)
{
DEFINE_WAIT_FUNC(wait, woken_wake_function);
- int ret;
+ int ret = 0;
+
+ if (!timeo)
+ return ret;
add_wait_queue(sk_sleep(sk), &wait);
sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
@@ -528,8 +531,6 @@ static void tcp_bpf_remove(struct sock *sk, struct sk_psock *psock)
{
struct sk_psock_link *link;
- sk_psock_cork_free(psock);
- __sk_psock_purge_ingress_msg(psock);
while ((link = sk_psock_link_pop(psock))) {
sk_psock_unlink(sk, link);
sk_psock_free_link(link);
diff --git a/net/ipv4/tcp_cdg.c b/net/ipv4/tcp_cdg.c
index 37eebd910396..709d23801823 100644
--- a/net/ipv4/tcp_cdg.c
+++ b/net/ipv4/tcp_cdg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* CAIA Delay-Gradient (CDG) congestion control
*
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index bc6c02f16243..e1862b64a90f 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Pluggable TCP congestion control support and newReno
* congestion control.
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index 78bfadfcf342..1b3d032a4df2 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TCP CUBIC: Binary Increase Congestion control for TCP v2.3
* Home page:
diff --git a/net/ipv4/tcp_dctcp.c b/net/ipv4/tcp_dctcp.c
index 477cb4aa456c..79f705450c16 100644
--- a/net/ipv4/tcp_dctcp.c
+++ b/net/ipv4/tcp_dctcp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* DataCenter TCP (DCTCP) congestion control.
*
* http://simula.stanford.edu/~alizade/Site/DCTCP.html
@@ -33,11 +34,6 @@
* Daniel Borkmann <dborkman@redhat.com>
* Florian Westphal <fw@strlen.de>
* Glenn Judd <glenn.judd@morganstanley.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
*/
#include <linux/module.h>
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
index 81148f7a2323..a3a386236d93 100644
--- a/net/ipv4/tcp_diag.c
+++ b/net/ipv4/tcp_diag.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* tcp_diag.c Module for monitoring TCP transport protocols sockets.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/module.h>
diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c
index d1c33c91eadc..bfdfbb972c57 100644
--- a/net/ipv4/tcp_highspeed.c
+++ b/net/ipv4/tcp_highspeed.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Sally Floyd's High Speed TCP (RFC 3649) congestion control
*
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
index 082d479462fa..88e1f011afe0 100644
--- a/net/ipv4/tcp_htcp.c
+++ b/net/ipv4/tcp_htcp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* H-TCP congestion control. The algorithm is detailed in:
* R.N.Shorten, D.J.Leith:
diff --git a/net/ipv4/tcp_hybla.c b/net/ipv4/tcp_hybla.c
index 0f7175c3338e..be39327e04e6 100644
--- a/net/ipv4/tcp_hybla.c
+++ b/net/ipv4/tcp_hybla.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TCP HYBLA
*
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index faddf4f9a707..00e54873213e 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TCP Illinois congestion control.
* Home page:
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 20f6fac5882e..08a477e74cf3 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3791,6 +3791,8 @@ void tcp_parse_options(const struct net *net,
length--;
continue;
default:
+ if (length < 2)
+ return;
opsize = *ptr++;
if (opsize < 2) /* "silly options" */
return;
@@ -6024,6 +6026,9 @@ reset_and_undo:
static void tcp_rcv_synrecv_state_fastopen(struct sock *sk)
{
tcp_try_undo_loss(sk, false);
+
+ /* Reset rtx states to prevent spurious retransmits_timed_out() */
+ tcp_sk(sk)->retrans_stamp = 0;
inet_csk(sk)->icsk_retransmits = 0;
/* Once we leave TCP_SYN_RECV or TCP_FIN_WAIT_1,
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index af81e4a6a8d8..bc86f9735f45 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -7,18 +8,12 @@
*
* IPv4 specific functions
*
- *
* code split from:
* linux/ipv4/tcp.c
* linux/ipv4/tcp_input.c
* linux/ipv4/tcp_output.c
*
* See tcp.c for author information
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
/*
diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c
index ae10ed64fe13..8c643a4ffad1 100644
--- a/net/ipv4/tcp_lp.c
+++ b/net/ipv4/tcp_lp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TCP Low Priority (TCP-LP)
*
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 9c2a0d36fb20..7c35731816e2 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
diff --git a/net/ipv4/tcp_nv.c b/net/ipv4/tcp_nv.c
index 764298e52577..95db7a11ba2a 100644
--- a/net/ipv4/tcp_nv.c
+++ b/net/ipv4/tcp_nv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TCP NV: TCP with Congestion Avoidance
*
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index 0fbf7d4df9da..e09147ac9a99 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* IPV4 GSO/GRO offload support
* Linux INET implementation
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* TCPv4 GSO/GRO support
*/
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 0c4ed66dc1bf..f429e856e263 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
diff --git a/net/ipv4/tcp_rate.c b/net/ipv4/tcp_rate.c
index baed2186c7c6..0de693565963 100644
--- a/net/ipv4/tcp_rate.c
+++ b/net/ipv4/tcp_rate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <net/tcp.h>
/* The bandwidth estimator estimates the rate at which the network
diff --git a/net/ipv4/tcp_scalable.c b/net/ipv4/tcp_scalable.c
index addc122f8818..471571e1ab26 100644
--- a/net/ipv4/tcp_scalable.c
+++ b/net/ipv4/tcp_scalable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* Tom Kelly's Scalable TCP
*
* See http://www.deneholme.net/tom/scalable/
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 2ac23da42dd2..5bad937ce779 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
diff --git a/net/ipv4/tcp_ulp.c b/net/ipv4/tcp_ulp.c
index 95df7f7f6328..3d8a1d835471 100644
--- a/net/ipv4/tcp_ulp.c
+++ b/net/ipv4/tcp_ulp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Pluggable TCP upper layer protocol support.
*
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index ee113ff15fd0..3f51e781562a 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TCP Vegas congestion control
*
diff --git a/net/ipv4/tcp_veno.c b/net/ipv4/tcp_veno.c
index 6fcf482d611b..3b36bb1a0dda 100644
--- a/net/ipv4/tcp_veno.c
+++ b/net/ipv4/tcp_veno.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TCP Veno congestion control
*
diff --git a/net/ipv4/tcp_westwood.c b/net/ipv4/tcp_westwood.c
index bec9cafbe3f9..b2e05c4cea00 100644
--- a/net/ipv4/tcp_westwood.c
+++ b/net/ipv4/tcp_westwood.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TCP Westwood+: end-to-end bandwidth estimation for TCP
*
diff --git a/net/ipv4/tcp_yeah.c b/net/ipv4/tcp_yeah.c
index 96e829b2e2fc..e00570dd0a69 100644
--- a/net/ipv4/tcp_yeah.c
+++ b/net/ipv4/tcp_yeah.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
*
* YeAH TCP
diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c
index 33bf8e9c8663..c4b2ccbeba04 100644
--- a/net/ipv4/tunnel4.c
+++ b/net/ipv4/tunnel4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* tunnel4.c: Generic IP tunnel transformer.
*
* Copyright (C) 2003 David S. Miller (davem@redhat.com)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 3c58ba02af7d..189144346cd4 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -69,12 +70,6 @@
* a single port at the same time.
* Derek Atkins <derek@ihtfp.com>: Add Encapulation Support
* James Chapman : Add L2TP encapsulation type.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) "UDP: " fmt
@@ -2883,7 +2878,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
__u16 srcp = ntohs(inet->inet_sport);
seq_printf(f, "%5d: %08X:%04X %08X:%04X"
- " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d",
+ " %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u",
bucket, src, srcp, dest, destp, sp->sk_state,
sk_wmem_alloc_get(sp),
udp_rqueue_get(sp),
diff --git a/net/ipv4/udp_diag.c b/net/ipv4/udp_diag.c
index 5cbb9be05295..910555a4d9fe 100644
--- a/net/ipv4/udp_diag.c
+++ b/net/ipv4/udp_diag.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* udp_diag.c Module for monitoring UDP transport protocols sockets.
*
* Authors: Pavel Emelyanov, <xemul@parallels.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 065334b41d57..06b3e2c1fcdc 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* IPV4 GSO/GRO offload support
* Linux INET implementation
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
* UDPv4 GSO support
*/
diff --git a/net/ipv4/udp_tunnel.c b/net/ipv4/udp_tunnel.c
index e93cc0379201..150e6f0fdbf5 100644
--- a/net/ipv4/udp_tunnel.c
+++ b/net/ipv4/udp_tunnel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/socket.h>
diff --git a/net/ipv4/udplite.c b/net/ipv4/udplite.c
index 3c94b8f0ff27..5936d66d1ce2 100644
--- a/net/ipv4/udplite.c
+++ b/net/ipv4/udplite.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* UDPLITE An implementation of the UDP-Lite protocol (RFC 3828).
*
@@ -5,10 +6,6 @@
*
* Changes:
* Fixes:
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) "UDPLite: " fmt
diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c
index 9bb8905088c7..ecff3fce9807 100644
--- a/net/ipv4/xfrm4_output.c
+++ b/net/ipv4/xfrm4_output.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* xfrm4_output.c - Common IPsec encapsulation code for IPv4.
* Copyright (c) 2004 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/if_ether.h>
diff --git a/net/ipv4/xfrm4_protocol.c b/net/ipv4/xfrm4_protocol.c
index bcab48944c15..8a4285712808 100644
--- a/net/ipv4/xfrm4_protocol.c
+++ b/net/ipv4/xfrm4_protocol.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* xfrm4_protocol.c - Generic xfrm protocol multiplexer.
*
* Copyright (C) 2013 secunet Security Networks AG
@@ -7,11 +8,6 @@
*
* Based on:
* net/ipv4/tunnel4.c
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#include <linux/init.h>
diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index 06347dbd32c1..5d00e54cd319 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* xfrm4_tunnel.c: Generic IP tunnel transformer.
*
* Copyright (C) 2003 David S. Miller (davem@redhat.com)