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2019-10-01netfilter: drop bridge nf reset from nf_resetFlorian Westphal
commit 174e23810cd31 ("sk_buff: drop all skb extensions on free and skb scrubbing") made napi recycle always drop skb extensions. The additional skb_ext_del() that is performed via nf_reset on napi skb recycle is not needed anymore. Most nf_reset() calls in the stack are there so queued skb won't block 'rmmod nf_conntrack' indefinitely. This removes the skb_ext_del from nf_reset, and renames it to a more fitting nf_reset_ct(). In a few selected places, add a call to skb_ext_reset to make sure that no active extensions remain. I am submitting this for "net", because we're still early in the release cycle. The patch applies to net-next too, but I think the rename causes needless divergence between those trees. Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Minor overlapping changes in the btusb and ixgbe drivers. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-06Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== pull request (net): ipsec 2019-09-05 1) Several xfrm interface fixes from Nicolas Dichtel: - Avoid an interface ID corruption on changelink. - Fix wrong intterface names in the logs. - Fix a list corruption when changing network namespaces. - Fix unregistation of the underying phydev. 2) Fix a potential warning when merging xfrm_plocy nodes. From Florian Westphal. Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Minor conflict in r8169, bug fix had two versions in net and net-next, take the net-next hunks. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-24xfrm/xfrm_policy: fix dst dev null pointer dereference in collect_md modeHangbin Liu
In decode_session{4,6} there is a possibility that the skb dst dev is NULL, e,g, with tunnel collect_md mode, which will cause kernel crash. Here is what the code path looks like, for GRE: - ip6gre_tunnel_xmit - ip6gre_xmit_ipv6 - __gre6_xmit - ip6_tnl_xmit - if skb->len - t->tun_hlen - eth_hlen > mtu; return -EMSGSIZE - icmpv6_send - icmpv6_route_lookup - xfrm_decode_session_reverse - decode_session4 - oif = skb_dst(skb)->dev->ifindex; <-- here - decode_session6 - oif = skb_dst(skb)->dev->ifindex; <-- here The reason is __metadata_dst_init() init dst->dev to NULL by default. We could not fix it in __metadata_dst_init() as there is no dev supplied. On the other hand, the skb_dst(skb)->dev is actually not needed as we called decode_session{4,6} via xfrm_decode_session_reverse(), so oif is not used by: fl4->flowi4_oif = reverse ? skb->skb_iif : oif; So make a dst dev check here should be clean and safe. v4: No changes. v3: No changes. v2: fix the issue in decode_session{4,6} instead of updating shared dst dev in {ip_md, ip6}_tunnel_xmit. Fixes: 8d79266bc48c ("ip6_tunnel: add collect_md mode to IPv6 tunnels") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Tested-by: Jonathan Lemon <jonathan.lemon@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-20xfrm: policy: avoid warning splat when merging nodesFlorian Westphal
syzbot reported a splat: xfrm_policy_inexact_list_reinsert+0x625/0x6e0 net/xfrm/xfrm_policy.c:877 CPU: 1 PID: 6756 Comm: syz-executor.1 Not tainted 5.3.0-rc2+ #57 Call Trace: xfrm_policy_inexact_node_reinsert net/xfrm/xfrm_policy.c:922 [inline] xfrm_policy_inexact_node_merge net/xfrm/xfrm_policy.c:958 [inline] xfrm_policy_inexact_insert_node+0x537/0xb50 net/xfrm/xfrm_policy.c:1023 xfrm_policy_inexact_alloc_chain+0x62b/0xbd0 net/xfrm/xfrm_policy.c:1139 xfrm_policy_inexact_insert+0xe8/0x1540 net/xfrm/xfrm_policy.c:1182 xfrm_policy_insert+0xdf/0xce0 net/xfrm/xfrm_policy.c:1574 xfrm_add_policy+0x4cf/0x9b0 net/xfrm/xfrm_user.c:1670 xfrm_user_rcv_msg+0x46b/0x720 net/xfrm/xfrm_user.c:2676 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2477 xfrm_netlink_rcv+0x74/0x90 net/xfrm/xfrm_user.c:2684 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x809/0x9a0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0xa70/0xd30 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] There is no reproducer, however, the warning can be reproduced by adding rules with ever smaller prefixes. The sanity check ("does the policy match the node") uses the prefix value of the node before its updated to the smaller value. To fix this, update the prefix earlier. The bug has no impact on tree correctness, this is only to prevent a false warning. Reported-by: syzbot+8cc27ace5f6972910b31@syzkaller.appspotmail.com Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-07-30net: Use skb_frag_off accessorsJonathan Lemon
Use accessor functions for skb fragment's page_offset instead of direct references, in preparation for bvec conversion. Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-17xfrm interface: fix management of phydevNicolas Dichtel
With the current implementation, phydev cannot be removed: $ ip link add dummy type dummy $ ip link add xfrm1 type xfrm dev dummy if_id 1 $ ip l d dummy kernel:[77938.465445] unregister_netdevice: waiting for dummy to become free. Usage count = 1 Manage it like in ip tunnels, ie just keep the ifindex. Not that the side effect, is that the phydev is now optional. Fixes: f203b76d7809 ("xfrm: Add virtual xfrm interfaces") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Tested-by: Julien Floret <julien.floret@6wind.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-07-17xfrm interface: fix list corruption for x-netnsNicolas Dichtel
dev_net(dev) is the netns of the device and xi->net is the link netns, where the device has been linked. changelink() must operate in the link netns to avoid a corruption of the xfrm lists. Note that xi->net and dev_net(xi->physdev) are always the same. Before the patch, the xfrmi lists may be corrupted and can later trigger a kernel panic. Fixes: f203b76d7809 ("xfrm: Add virtual xfrm interfaces") Reported-by: Julien Floret <julien.floret@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Tested-by: Julien Floret <julien.floret@6wind.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-07-17xfrm interface: ifname may be wrong in logsNicolas Dichtel
The ifname is copied when the interface is created, but is never updated later. In fact, this property is used only in one error message, where the netdevice pointer is available, thus let's use it. Fixes: f203b76d7809 ("xfrm: Add virtual xfrm interfaces") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-07-17xfrm interface: avoid corruption on changelinkNicolas Dichtel
The new parameters must not be stored in the netdev_priv() before validation, it may corrupt the interface. Note also that if data is NULL, only a memset() is done. $ ip link add xfrm1 type xfrm dev lo if_id 1 $ ip link add xfrm2 type xfrm dev lo if_id 2 $ ip link set xfrm1 type xfrm dev lo if_id 2 RTNETLINK answers: File exists $ ip -d link list dev xfrm1 5: xfrm1@lo: <NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/none 00:00:00:00:00:00 brd 00:00:00:00:00:00 promiscuity 0 minmtu 68 maxmtu 1500 xfrm if_id 0x2 addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535 => "if_id 0x2" Fixes: f203b76d7809 ("xfrm: Add virtual xfrm interfaces") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Tested-by: Julien Floret <julien.floret@6wind.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-07-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Two cases of overlapping changes, nothing fancy. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2019-07-05 1) A lot of work to remove indirections from the xfrm code. From Florian Westphal. 2) Fix a WARN_ON with ipv6 that triggered because of a forgotten break statement. From Florian Westphal. 3) Remove xfrmi_init_net, it is not needed. From Li RongQing. Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-05Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== pull request (net): ipsec 2019-07-05 1) Fix xfrm selector prefix length validation for inter address family tunneling. From Anirudh Gupta. 2) Fix a memleak in pfkey. From Jeremy Sowden. 3) Fix SA selector validation to allow empty selectors again. From Nicolas Dichtel. 4) Select crypto ciphers for xfrm_algo, this fixes some randconfig builds. From Arnd Bergmann. 5) Remove a duplicated assignment in xfrm_bydst_resize. From Cong Wang. 6) Fix a hlist corruption on hash rebuild. From Florian Westphal. 7) Fix a memory leak when creating xfrm interfaces. From Nicolas Dichtel. Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-03xfrm interface: fix memory leak on creationNicolas Dichtel
The following commands produce a backtrace and return an error but the xfrm interface is created (in the wrong netns): $ ip netns add foo $ ip netns add bar $ ip -n foo netns set bar 0 $ ip -n foo link add xfrmi0 link-netnsid 0 type xfrm dev lo if_id 23 RTNETLINK answers: Invalid argument $ ip -n bar link ls xfrmi0 2: xfrmi0@lo: <NOARP,M-DOWN> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/none 00:00:00:00:00:00 brd 00:00:00:00:00:00 Here is the backtrace: [ 79.879174] WARNING: CPU: 0 PID: 1178 at net/core/dev.c:8172 rollback_registered_many+0x86/0x3c1 [ 79.880260] Modules linked in: xfrm_interface nfsv3 nfs_acl auth_rpcgss nfsv4 nfs lockd grace sunrpc fscache button parport_pc parport serio_raw evdev pcspkr loop ext4 crc16 mbcache jbd2 crc32c_generic ide_cd_mod ide_gd_mod cdrom ata_$ eneric ata_piix libata scsi_mod 8139too piix psmouse i2c_piix4 ide_core 8139cp mii i2c_core floppy [ 79.883698] CPU: 0 PID: 1178 Comm: ip Not tainted 5.2.0-rc6+ #106 [ 79.884462] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 [ 79.885447] RIP: 0010:rollback_registered_many+0x86/0x3c1 [ 79.886120] Code: 01 e8 d7 7d c6 ff 0f 0b 48 8b 45 00 4c 8b 20 48 8d 58 90 49 83 ec 70 48 8d 7b 70 48 39 ef 74 44 8a 83 d0 04 00 00 84 c0 75 1f <0f> 0b e8 61 cd ff ff 48 b8 00 01 00 00 00 00 ad de 48 89 43 70 66 [ 79.888667] RSP: 0018:ffffc900015ab740 EFLAGS: 00010246 [ 79.889339] RAX: ffff8882353e5700 RBX: ffff8882353e56a0 RCX: ffff8882353e5710 [ 79.890174] RDX: ffffc900015ab7e0 RSI: ffffc900015ab7e0 RDI: ffff8882353e5710 [ 79.891029] RBP: ffffc900015ab7e0 R08: ffffc900015ab7e0 R09: ffffc900015ab7e0 [ 79.891866] R10: ffffc900015ab7a0 R11: ffffffff82233fec R12: ffffc900015ab770 [ 79.892728] R13: ffffffff81eb7ec0 R14: ffff88822ed6cf00 R15: 00000000ffffffea [ 79.893557] FS: 00007ff350f31740(0000) GS:ffff888237a00000(0000) knlGS:0000000000000000 [ 79.894581] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.895317] CR2: 00000000006c8580 CR3: 000000022c272000 CR4: 00000000000006f0 [ 79.896137] Call Trace: [ 79.896464] unregister_netdevice_many+0x12/0x6c [ 79.896998] __rtnl_newlink+0x6e2/0x73b [ 79.897446] ? __kmalloc_node_track_caller+0x15e/0x185 [ 79.898039] ? pskb_expand_head+0x5f/0x1fe [ 79.898556] ? stack_access_ok+0xd/0x2c [ 79.899009] ? deref_stack_reg+0x12/0x20 [ 79.899462] ? stack_access_ok+0xd/0x2c [ 79.899927] ? stack_access_ok+0xd/0x2c [ 79.900404] ? __module_text_address+0x9/0x4f [ 79.900910] ? is_bpf_text_address+0x5/0xc [ 79.901390] ? kernel_text_address+0x67/0x7b [ 79.901884] ? __kernel_text_address+0x1a/0x25 [ 79.902397] ? unwind_get_return_address+0x12/0x23 [ 79.903122] ? __cmpxchg_double_slab.isra.37+0x46/0x77 [ 79.903772] rtnl_newlink+0x43/0x56 [ 79.904217] rtnetlink_rcv_msg+0x200/0x24c In fact, each time a xfrm interface was created, a netdev was allocated by __rtnl_newlink()/rtnl_create_link() and then another one by xfrmi_newlink()/xfrmi_create(). Only the second one was registered, it's why the previous commands produce a backtrace: dev_change_net_namespace() was called on a netdev with reg_state set to NETREG_UNINITIALIZED (the first one). CC: Lorenzo Colitti <lorenzo@google.com> CC: Benedict Wong <benedictwong@google.com> CC: Steffen Klassert <steffen.klassert@secunet.com> CC: Shannon Nelson <shannon.nelson@oracle.com> CC: Antony Antony <antony@phenome.org> CC: Eyal Birger <eyal.birger@gmail.com> Fixes: f203b76d7809 ("xfrm: Add virtual xfrm interfaces") Reported-by: Julien Floret <julien.floret@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-07-03xfrm: policy: fix bydst hlist corruption on hash rebuildFlorian Westphal
syzbot reported following spat: BUG: KASAN: use-after-free in __write_once_size include/linux/compiler.h:221 BUG: KASAN: use-after-free in hlist_del_rcu include/linux/rculist.h:455 BUG: KASAN: use-after-free in xfrm_hash_rebuild+0xa0d/0x1000 net/xfrm/xfrm_policy.c:1318 Write of size 8 at addr ffff888095e79c00 by task kworker/1:3/8066 Workqueue: events xfrm_hash_rebuild Call Trace: __write_once_size include/linux/compiler.h:221 [inline] hlist_del_rcu include/linux/rculist.h:455 [inline] xfrm_hash_rebuild+0xa0d/0x1000 net/xfrm/xfrm_policy.c:1318 process_one_work+0x814/0x1130 kernel/workqueue.c:2269 Allocated by task 8064: __kmalloc+0x23c/0x310 mm/slab.c:3669 kzalloc include/linux/slab.h:742 [inline] xfrm_hash_alloc+0x38/0xe0 net/xfrm/xfrm_hash.c:21 xfrm_policy_init net/xfrm/xfrm_policy.c:4036 [inline] xfrm_net_init+0x269/0xd60 net/xfrm/xfrm_policy.c:4120 ops_init+0x336/0x420 net/core/net_namespace.c:130 setup_net+0x212/0x690 net/core/net_namespace.c:316 The faulting address is the address of the old chain head, free'd by xfrm_hash_resize(). In xfrm_hash_rehash(), chain heads get re-initialized without any hlist_del_rcu: for (i = hmask; i >= 0; i--) INIT_HLIST_HEAD(odst + i); Then, hlist_del_rcu() gets called on the about to-be-reinserted policy when iterating the per-net list of policies. hlist_del_rcu() will then make chain->first be nonzero again: static inline void __hlist_del(struct hlist_node *n) { struct hlist_node *next = n->next; // address of next element in list struct hlist_node **pprev = n->pprev;// location of previous elem, this // can point at chain->first WRITE_ONCE(*pprev, next); // chain->first points to next elem if (next) next->pprev = pprev; Then, when we walk chainlist to find insertion point, we may find a non-empty list even though we're supposedly reinserting the first policy to an empty chain. To fix this first unlink all exact and inexact policies instead of zeroing the list heads. Add the commands equivalent to the syzbot reproducer to xfrm_policy.sh, without fix KASAN catches the corruption as it happens, SLUB poisoning detects it a bit later. Reported-by: syzbot+0165480d4ef07360eeda@syzkaller.appspotmail.com Fixes: 1548bc4e0512 ("xfrm: policy: delete inexact policies from inexact list on hash rebuild") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-07-02xfrm: remove a duplicated assignmentCong Wang
Fixes: 30846090a746 ("xfrm: policy: add sequence count to sync with hash resize") Cc: Florian Westphal <fw@strlen.de> Cc: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-07-01xfrm: remove get_mtu indirection from xfrm_typeFlorian Westphal
esp4_get_mtu and esp6_get_mtu are exactly the same, the only difference is a single sizeof() (ipv4 vs. ipv6 header). Merge both into xfrm_state_mtu() and remove the indirection. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-21ipsec: select crypto ciphers for xfrm_algoArnd Bergmann
kernelci.org reports failed builds on arc because of what looks like an old missed 'select' statement: net/xfrm/xfrm_algo.o: In function `xfrm_probe_algs': xfrm_algo.c:(.text+0x1e8): undefined reference to `crypto_has_ahash' I don't see this in randconfig builds on other architectures, but it's fairly clear we want to select the hash code for it, like we do for all its other users. As Herbert points out, CRYPTO_BLKCIPHER is also required even though it has not popped up in build tests. Fixes: 17bc19702221 ("ipsec: Use skcipher and ahash when probing algorithms") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-17xfrm: fix sa selector validationNicolas Dichtel
After commit b38ff4075a80, the following command does not work anymore: $ ip xfrm state add src 10.125.0.2 dst 10.125.0.1 proto esp spi 34 reqid 1 \ mode tunnel enc 'cbc(aes)' 0xb0abdba8b782ad9d364ec81e3a7d82a1 auth-trunc \ 'hmac(sha1)' 0xe26609ebd00acb6a4d51fca13e49ea78a72c73e6 96 flag align4 In fact, the selector is not mandatory, allow the user to provide an empty selector. Fixes: b38ff4075a80 ("xfrm: Fix xfrm sel prefix length validation") CC: Anirudh Gupta <anirudh.gupta@sophos.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-14xfrm: remove empty xfrmi_init_netLi RongQing
Pointer members of an object with static storage duration, if not explicitly initialized, will be initialized to a NULL pointer. The net namespace API checks if this pointer is not NULL before using it, it are safe to remove the function. Signed-off-by: Li RongQing <lirongqing@baidu.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-12xfrm: fix bogus WARN_ON with ipv6Florian Westphal
net/xfrm/xfrm_input.c:378:17: warning: this statement may fall through [-Wimplicit-fallthrough=] skb->protocol = htons(ETH_P_IPV6); ... the fallthrough then causes a bogus WARN_ON(). Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 4c203b0454b ("xfrm: remove eth_proto value from xfrm_state_afinfo") Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-06xfrm: remove type and offload_type map from xfrm_state_afinfoFlorian Westphal
Only a handful of xfrm_types exist, no need to have 512 pointers for them. Reduces size of afinfo struct from 4k to 120 bytes on 64bit platforms. Also, the unregister function doesn't need to return an error, no single caller does anything useful with it. Just place a WARN_ON() where needed instead. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-06xfrm: remove eth_proto value from xfrm_state_afinfoFlorian Westphal
xfrm_prepare_input needs to lookup the state afinfo backend again to fetch the address family ethernet protocol value. There are only two address families, so a switch statement is simpler. While at it, use u8 for family and proto and remove the owner member -- its not used anywhere. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-06xfrm: remove state and template sort indirections from xfrm_state_afinfoFlorian Westphal
No module dependency, placing this in xfrm_state.c avoids need for an indirection. This also removes the state spinlock -- I don't see why we would need to hold it during sorting. This in turn allows to remove the 'net' argument passed to xfrm_tmpl_sort. Last, remove the EXPORT_SYMBOL, there are no modular callers. For the CONFIG_IPV6=m case, vmlinux size increase is about 300 byte. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335Thomas Gleixner
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope 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 write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 111 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.567572064@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05xfrm: remove init_flags indirection from xfrm_state_afinfoFlorian Westphal
There is only one implementation of this function; just call it directly. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-05xfrm: remove init_temprop indirection from xfrm_state_afinfoFlorian Westphal
same as previous patch: just place this in the caller, no need to have an indirection for a structure initialization. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-06-05xfrm: remove init_tempsel indirection from xfrm_state_afinfoFlorian Westphal
Simple initialization, handle it in the caller. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-28xfrm: Fix xfrm sel prefix length validationAnirudh Gupta
Family of src/dst can be different from family of selector src/dst. Use xfrm selector family to validate address prefix length, while verifying new sa from userspace. Validated patch with this command: ip xfrm state add src 1.1.6.1 dst 1.1.6.2 proto esp spi 4260196 \ reqid 20004 mode tunnel aead "rfc4106(gcm(aes))" \ 0x1111016400000000000000000000000044440001 128 \ sel src 1011:1:4::2/128 sel dst 1021:1:4::2/128 dev Port5 Fixes: 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.") Signed-off-by: Anirudh Gupta <anirudh.gupta@sophos.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-05-21Merge tag 'spdx-5.2-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull SPDX update from Greg KH: "Here is a series of patches that add SPDX tags to different kernel files, based on two different things: - SPDX entries are added to a bunch of files that we missed a year ago that do not have any license information at all. These were either missed because the tool saw the MODULE_LICENSE() tag, or some EXPORT_SYMBOL tags, and got confused and thought the file had a real license, or the files have been added since the last big sweep, or they were Makefile/Kconfig files, which we didn't touch last time. - Add GPL-2.0-only or GPL-2.0-or-later tags to files where our scan tools can determine the license text in the file itself. Where this happens, the license text is removed, in order to cut down on the 700+ different ways we have in the kernel today, in a quest to get rid of all of these. These patches have been out for review on the linux-spdx@vger mailing list, and while they were created by automatic tools, they were hand-verified by a bunch of different people, all whom names are on the patches are reviewers. The reason for these "large" patches is if we were to continue to progress at the current rate of change in the kernel, adding license tags to individual files in different subsystems, we would be finished in about 10 years at the earliest. There will be more series of these types of patches coming over the next few weeks as the tools and reviewers crunch through the more "odd" variants of how to say "GPLv2" that developers have come up with over the years, combined with other fun oddities (GPL + a BSD disclaimer?) that are being unearthed, with the goal for the whole kernel to be cleaned up. These diffstats are not small, 3840 files are touched, over 10k lines removed in just 24 patches" * tag 'spdx-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (24 commits) treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 25 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 24 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 23 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 22 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 21 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 20 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 19 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 17 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 15 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 14 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 12 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 11 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 10 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 9 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 5 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 3 ...
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier for more missed filesThomas Gleixner
Add SPDX license identifiers to all files which: - Have no license information of any form - Have MODULE_LICENCE("GPL*") inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier for missed filesThomas Gleixner
Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-16xfrm: ressurrect "Fix uninitialized memory read in _decode_session4"Florian Westphal
This resurrects commit 8742dc86d0c7a9628 ("xfrm4: Fix uninitialized memory read in _decode_session4"), which got lost during a merge conflict resolution between ipsec-next and net-next tree. c53ac41e3720 ("xfrm: remove decode_session indirection from afinfo_policy") in ipsec-next moved the (buggy) _decode_session4 from net/ipv4/xfrm4_policy.c to net/xfrm/xfrm_policy.c. In mean time, 8742dc86d0c7a was applied to ipsec.git and fixed the problem in the "old" location. When the trees got merged, the moved, old function was kept. This applies the "lost" commit again, to the new location. Fixes: a658a3f2ecbab ("Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking updates from David Miller: "Highlights: 1) Support AES128-CCM ciphers in kTLS, from Vakul Garg. 2) Add fib_sync_mem to control the amount of dirty memory we allow to queue up between synchronize RCU calls, from David Ahern. 3) Make flow classifier more lockless, from Vlad Buslov. 4) Add PHY downshift support to aquantia driver, from Heiner Kallweit. 5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces contention on SLAB spinlocks in heavy RPC workloads. 6) Partial GSO offload support in XFRM, from Boris Pismenny. 7) Add fast link down support to ethtool, from Heiner Kallweit. 8) Use siphash for IP ID generator, from Eric Dumazet. 9) Pull nexthops even further out from ipv4/ipv6 routes and FIB entries, from David Ahern. 10) Move skb->xmit_more into a per-cpu variable, from Florian Westphal. 11) Improve eBPF verifier speed and increase maximum program size, from Alexei Starovoitov. 12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit spinlocks. From Neil Brown. 13) Allow tunneling with GUE encap in ipvs, from Jacky Hu. 14) Improve link partner cap detection in generic PHY code, from Heiner Kallweit. 15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan Maguire. 16) Remove SKB list implementation assumptions in SCTP, your's truly. 17) Various cleanups, optimizations, and simplifications in r8169 driver. From Heiner Kallweit. 18) Add memory accounting on TX and RX path of SCTP, from Xin Long. 19) Switch PHY drivers over to use dynamic featue detection, from Heiner Kallweit. 20) Support flow steering without masking in dpaa2-eth, from Ioana Ciocoi. 21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri Pirko. 22) Increase the strict parsing of current and future netlink attributes, also export such policies to userspace. From Johannes Berg. 23) Allow DSA tag drivers to be modular, from Andrew Lunn. 24) Remove legacy DSA probing support, also from Andrew Lunn. 25) Allow ll_temac driver to be used on non-x86 platforms, from Esben Haabendal. 26) Add a generic tracepoint for TX queue timeouts to ease debugging, from Cong Wang. 27) More indirect call optimizations, from Paolo Abeni" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits) cxgb4: Fix error path in cxgb4_init_module net: phy: improve pause mode reporting in phy_print_status dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings net: macb: Change interrupt and napi enable order in open net: ll_temac: Improve error message on error IRQ net/sched: remove block pointer from common offload structure net: ethernet: support of_get_mac_address new ERR_PTR error net: usb: smsc: fix warning reported by kbuild test robot staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check net: dsa: support of_get_mac_address new ERR_PTR error net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats vrf: sit mtu should not be updated when vrf netdev is the link net: dsa: Fix error cleanup path in dsa_init_module l2tp: Fix possible NULL pointer dereference taprio: add null check on sched_nest to avoid potential null pointer dereference net: mvpp2: cls: fix less than zero check on a u32 variable net_sched: sch_fq: handle non connected flows net_sched: sch_fq: do not assume EDT packets are ordered net: hns3: use devm_kcalloc when allocating desc_cb net: hns3: some cleanup for struct hns3_enet_ring ...
2019-05-06Merge branch 'timers-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer updates from Ingo Molnar: "This cycle had the following changes: - Timer tracing improvements (Anna-Maria Gleixner) - Continued tasklet reduction work: remove the hrtimer_tasklet (Thomas Gleixner) - Fix CPU hotplug remove race in the tick-broadcast mask handling code (Thomas Gleixner) - Force upper bound for setting CLOCK_REALTIME, to fix ABI inconsistencies with handling values that are close to the maximum supported and the vagueness of when uptime related wraparound might occur. Make the consistent maximum the year 2232 across all relevant ABIs and APIs. (Thomas Gleixner) - various cleanups and smaller fixes" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick: Fix typos in comments tick/broadcast: Fix warning about undefined tick_broadcast_oneshot_offline() timekeeping: Force upper bound for setting CLOCK_REALTIME timer/trace: Improve timer tracing timer/trace: Replace deprecated vsprintf pointer extension %pf by %ps timer: Move trace point to get proper index tick/sched: Update tick_sched struct documentation tick: Remove outgoing CPU from broadcast masks timekeeping: Consistently use unsigned int for seqcount snapshot softirq: Remove tasklet_hrtimer xfrm: Replace hrtimer tasklet with softirq hrtimer mac80211_hwsim: Replace hrtimer tasklet with softirq hrtimer
2019-05-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Three trivial overlapping conflicts. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-30Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2019-04-30 1) A lot of work to remove indirections from the xfrm code. From Florian Westphal. 2) Support ESP offload in combination with gso partial. From Boris Pismenny. 3) Remove some duplicated code from vti4. From Jeremy Sowden. Please note that there is merge conflict between commit: 8742dc86d0c7 ("xfrm4: Fix uninitialized memory read in _decode_session4") from the ipsec tree and commit: c53ac41e3720 ("xfrm: remove decode_session indirection from afinfo_policy") from the ipsec-next tree. The merge conflict will appear when those trees get merged during the merge window. The conflict can be solved as it is done in linux-next: https://lkml.org/lkml/2019/4/25/1207 Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27netlink: make validation more configurable for future strictnessJohannes Berg
We currently have two levels of strict validation: 1) liberal (default) - undefined (type >= max) & NLA_UNSPEC attributes accepted - attribute length >= expected accepted - garbage at end of message accepted 2) strict (opt-in) - NLA_UNSPEC attributes accepted - attribute length >= expected accepted Split out parsing strictness into four different options: * TRAILING - check that there's no trailing data after parsing attributes (in message or nested) * MAXTYPE - reject attrs > max known type * UNSPEC - reject attributes with NLA_UNSPEC policy entries * STRICT_ATTRS - strictly validate attribute size The default for future things should be *everything*. The current *_strict() is a combination of TRAILING and MAXTYPE, and is renamed to _deprecated_strict(). The current regular parsing has none of this, and is renamed to *_parse_deprecated(). Additionally it allows us to selectively set one of the new flags even on old policies. Notably, the UNSPEC flag could be useful in this case, since it can be arranged (by filling in the policy) to not be an incompatible userspace ABI change, but would then going forward prevent forgetting attribute entries. Similar can apply to the POLICY flag. We end up with the following renames: * nla_parse -> nla_parse_deprecated * nla_parse_strict -> nla_parse_deprecated_strict * nlmsg_parse -> nlmsg_parse_deprecated * nlmsg_parse_strict -> nlmsg_parse_deprecated_strict * nla_parse_nested -> nla_parse_nested_deprecated * nla_validate_nested -> nla_validate_nested_deprecated Using spatch, of course: @@ expression TB, MAX, HEAD, LEN, POL, EXT; @@ -nla_parse(TB, MAX, HEAD, LEN, POL, EXT) +nla_parse_deprecated(TB, MAX, HEAD, LEN, POL, EXT) @@ expression NLH, HDRLEN, TB, MAX, POL, EXT; @@ -nlmsg_parse(NLH, HDRLEN, TB, MAX, POL, EXT) +nlmsg_parse_deprecated(NLH, HDRLEN, TB, MAX, POL, EXT) @@ expression NLH, HDRLEN, TB, MAX, POL, EXT; @@ -nlmsg_parse_strict(NLH, HDRLEN, TB, MAX, POL, EXT) +nlmsg_parse_deprecated_strict(NLH, HDRLEN, TB, MAX, POL, EXT) @@ expression TB, MAX, NLA, POL, EXT; @@ -nla_parse_nested(TB, MAX, NLA, POL, EXT) +nla_parse_nested_deprecated(TB, MAX, NLA, POL, EXT) @@ expression START, MAX, POL, EXT; @@ -nla_validate_nested(START, MAX, POL, EXT) +nla_validate_nested_deprecated(START, MAX, POL, EXT) @@ expression NLH, HDRLEN, MAX, POL, EXT; @@ -nlmsg_validate(NLH, HDRLEN, MAX, POL, EXT) +nlmsg_validate_deprecated(NLH, HDRLEN, MAX, POL, EXT) For this patch, don't actually add the strict, non-renamed versions yet so that it breaks compile if I get it wrong. Also, while at it, make nla_validate and nla_parse go down to a common __nla_validate_parse() function to avoid code duplication. Ultimately, this allows us to have very strict validation for every new caller of nla_parse()/nlmsg_parse() etc as re-introduced in the next patch, while existing things will continue to work as is. In effect then, this adds fully strict validation for any new command. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-23xfrm: remove unneeded export_symbolsFlorian Westphal
None of them have any external callers, make them static. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-04-23xfrm: remove decode_session indirection from afinfo_policyFlorian Westphal
No external dependencies, might as well handle this directly. xfrm_afinfo_policy is now 40 bytes on x86_64. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-04-23xfrm: remove init_path indirection from afinfo_policyFlorian Westphal
handle this directly, its only used by ipv6. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-04-23xfrm: remove tos indirection from afinfo_policyFlorian Westphal
Only used by ipv4, we can read the fl4 tos value directly instead. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-04-15xfrm: kconfig: make xfrm depend on inetFlorian Westphal
when CONFIG_INET is not enabled: net/xfrm/xfrm_output.c: In function ‘xfrm4_tunnel_encap_add’: net/xfrm/xfrm_output.c:234:2: error: implicit declaration of function ‘ip_select_ident’ [-Werror=implicit-function-declaration] ip_select_ident(dev_net(dst->dev), skb, NULL); XFRM only supports ipv4 and ipv6 so change dependency to INET and place user-visible options (pfkey sockets, migrate support and the like) under 'if INET' guard as well. Fixes: 1de70830066b7 ("xfrm: remove output2 indirection from xfrm_mode") Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-04-08xfrm: store xfrm_mode directly, not its addressFlorian Westphal
This structure is now only 4 bytes, so its more efficient to cache a copy rather than its address. No significant size difference in allmodconfig vmlinux. With non-modular kernel that has all XFRM options enabled, this series reduces vmlinux image size by ~11kb. All xfrm_mode indirections are gone and all modes are built-in. before (ipsec-next master): text data bss dec filename 21071494 7233140 11104324 39408958 vmlinux.master after this series: 21066448 7226772 11104324 39397544 vmlinux.patched With allmodconfig kernel, the size increase is only 362 bytes, even all the xfrm config options removed in this series are modular. before: text data bss dec filename 15731286 6936912 4046908 26715106 vmlinux.master after this series: 15731492 6937068 4046908 26715468 vmlinux Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-04-08xfrm: make xfrm modes builtinFlorian Westphal
after previous changes, xfrm_mode contains no function pointers anymore and all modules defining such struct contain no code except an init/exit functions to register the xfrm_mode struct with the xfrm core. Just place the xfrm modes core and remove the modules, the run-time xfrm_mode register/unregister functionality is removed. Before: text data bss dec filename 7523 200 2364 10087 net/xfrm/xfrm_input.o 40003 628 440 41071 net/xfrm/xfrm_state.o 15730338 6937080 4046908 26714326 vmlinux 7389 200 2364 9953 net/xfrm/xfrm_input.o 40574 656 440 41670 net/xfrm/xfrm_state.o 15730084 6937068 4046908 26714060 vmlinux The xfrm*_mode_{transport,tunnel,beet} modules are gone. v2: replace CONFIG_INET6_XFRM_MODE_* IS_ENABLED guards with CONFIG_IPV6 ones rather than removing them. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-04-08xfrm: remove afinfo pointer from xfrm_modeFlorian Westphal
Adds an EXPORT_SYMBOL for afinfo_get_rcu, as it will now be called from ipv6 in case of CONFIG_IPV6=m. This change has virtually no effect on vmlinux size, but it reduces afinfo size and allows followup patch to make xfrm modes const. v2: mark if (afinfo) tests as likely (Sabrina) re-fetch afinfo according to inner_mode in xfrm_prepare_input(). Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-04-08xfrm: remove output2 indirection from xfrm_modeFlorian Westphal
similar to previous patch: no external module dependencies, so we can avoid the indirection by placing this in the core. This change removes the last indirection from xfrm_mode and the xfrm4|6_mode_{beet,tunnel}.c modules contain (almost) no code anymore. Before: text data bss dec hex filename 3957 136 0 4093 ffd net/xfrm/xfrm_output.o 587 44 0 631 277 net/ipv4/xfrm4_mode_beet.o 649 32 0 681 2a9 net/ipv4/xfrm4_mode_tunnel.o 625 44 0 669 29d net/ipv6/xfrm6_mode_beet.o 599 32 0 631 277 net/ipv6/xfrm6_mode_tunnel.o After: text data bss dec hex filename 5359 184 0 5543 15a7 net/xfrm/xfrm_output.o 171 24 0 195 c3 net/ipv4/xfrm4_mode_beet.o 171 24 0 195 c3 net/ipv4/xfrm4_mode_tunnel.o 172 24 0 196 c4 net/ipv6/xfrm6_mode_beet.o 172 24 0 196 c4 net/ipv6/xfrm6_mode_tunnel.o v2: fold the *encap_add functions into xfrm*_prepare_output preserve (move) output2 comment (Sabrina) use x->outer_mode->encap, not inner fix a build breakage on ppc (kbuild robot) Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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