diff options
Diffstat (limited to 'net/ipv4')
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 Claßen <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) |