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authorDaniel Borkmann <dborkman@redhat.com>2015-03-19 10:13:56 +0100
committerDaniel Borkmann <dborkman@redhat.com>2015-03-19 10:13:56 +0100
commit3dfaab495b62658b88a1ed201b2ed61aea34570d (patch)
tree5a9d7a544a32364c8534e31b898eabbd01edbd31 /bpf_jit_disasm.c
parent6f542884d002d55d517a50dd9892068e95400b25 (diff)
authors: add Vadim for his contributions
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Diffstat (limited to 'bpf_jit_disasm.c')
0 files changed, 0 insertions, 0 deletions
clear pfmemalloc on outgoing skbEric Dumazet1-0/+7 Josef Bacik diagnosed following problem : I was seeing random disconnects while testing NBD over loopback. This turned out to be because NBD sets pfmemalloc on it's socket, however the receiving side is a user space application so does not have pfmemalloc set on its socket. This means that sk_filter_trim_cap will simply drop this packet, under the assumption that the other side will simply retransmit. Well we do retransmit, and then the packet is just dropped again for the same reason. It seems the better way to address this problem is to clear pfmemalloc in the TCP transmit path. pfmemalloc strict control really makes sense on the receive path. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Josef Bacik <jbacik@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-03tcp: add tcp_mss_clamp() helperEric Dumazet3-19/+7 Small cleanup factorizing code doing the TCP_MAXSEG clamping. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-02net: add LINUX_MIB_PFMEMALLOCDROP counterEric Dumazet1-0/+1 Debugging issues caused by pfmemalloc is often tedious. Add a new SNMP counter to more easily diagnose these problems. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Josef Bacik <jbacik@fb.com> Acked-by: Josef Bacik <jbacik@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-02net: ipv4: remove fib_lookup.h from devinet.c include listDavid Ahern1-2/+0 nothing in devinet.c relies on fib_lookup.h; remove it from the includes Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-2/+4 All merge conflicts were simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net> 2017-02-02netfilter: allow logging from non-init namespacesMichal Kubeček2-2/+2 Commit 69b34fb996b2 ("netfilter: xt_LOG: add net namespace support for xt_LOG") disabled logging packets using the LOG target from non-init namespaces. The motivation was to prevent containers from flooding kernel log of the host. The plan was to keep it that way until syslog namespace implementation allows containers to log in a safe way. However, the work on syslog namespace seems to have hit a dead end somewhere in 2013 and there are users who want to use xt_LOG in all network namespaces. This patch allows to do so by setting /proc/sys/net/netfilter/nf_log_all_netns to a nonzero value. This sysctl is only accessible from init_net so that one cannot switch the behaviour from inside a container. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: add and use nf_ct_set helperFlorian Westphal3-6/+3 Add a helper to assign a nf_conn entry and the ctinfo bits to an sk_buff. This avoids changing code in followup patch that merges skb->nfct and skb->nfctinfo into skb->_nfct. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02skbuff: add and use skb_nfct helperFlorian Westphal4-8/+8 Followup patch renames skb->nfct and changes its type so add a helper to avoid intrusive rename change later. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: reset netfilter state when duplicating packetFlorian Westphal1-1/+1 We should also toss nf_bridge_info, if any -- packet is leaving via ip_local_out, also, this skb isn't bridged -- it is a locally generated copy. Also this avoids the need to touch this later when skb->nfct is replaced with 'unsigned long _nfct' in followup patch. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: conntrack: no need to pass ctinfo to error handlerFlorian Westphal1-6/+6 It is never accessed for reading and the only places that write to it are the icmp(6) handlers, which also set skb->nfct (and skb->nfctinfo). The conntrack core specifically checks for attached skb->nfct after ->error() invocation and returns early in this case. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>