From 3cf2f450fff304be9cf4868bf0df17f253bc5b1c Mon Sep 17 00:00:00 2001 From: Todd Seidelmann Date: Wed, 21 Aug 2019 11:47:53 -0400 Subject: netfilter: xt_physdev: Fix spurious error message in physdev_mt_check Simplify the check in physdev_mt_check() to emit an error message only when passed an invalid chain (ie, NF_INET_LOCAL_OUT). This avoids cluttering up the log with errors against valid rules. For large/heavily modified rulesets, current behavior can quickly overwhelm the ring buffer, because this function gets called on every change, regardless of the rule that was changed. Signed-off-by: Todd Seidelmann Acked-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/xt_physdev.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'net') diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c index ead7c6022208..b92b22ce8abd 100644 --- a/net/netfilter/xt_physdev.c +++ b/net/netfilter/xt_physdev.c @@ -101,11 +101,9 @@ static int physdev_mt_check(const struct xt_mtchk_param *par) if (info->bitmask & (XT_PHYSDEV_OP_OUT | XT_PHYSDEV_OP_ISOUT) && (!(info->bitmask & XT_PHYSDEV_OP_BRIDGED) || info->invert & XT_PHYSDEV_OP_BRIDGED) && - par->hook_mask & ((1 << NF_INET_LOCAL_OUT) | - (1 << NF_INET_FORWARD) | (1 << NF_INET_POST_ROUTING))) { + par->hook_mask & (1 << NF_INET_LOCAL_OUT)) { pr_info_ratelimited("--physdev-out and --physdev-is-out only supported in the FORWARD and POSTROUTING chains with bridged traffic\n"); - if (par->hook_mask & (1 << NF_INET_LOCAL_OUT)) - return -EINVAL; + return -EINVAL; } if (!brnf_probed) { -- cgit v1.2.3 From 3a069024d371125227de3ac8fa74223fcf473520 Mon Sep 17 00:00:00 2001 From: Thomas Jarosch Date: Wed, 21 Aug 2019 16:14:28 +0200 Subject: netfilter: nf_conntrack_ftp: Fix debug output The find_pattern() debug output was printing the 'skip' character. This can be a NULL-byte and messes up further pr_debug() output. Output without the fix: kernel: nf_conntrack_ftp: Pattern matches! kernel: nf_conntrack_ftp: Skipped up to `<7>nf_conntrack_ftp: find_pattern `PORT': dlen = 8 kernel: nf_conntrack_ftp: find_pattern `EPRT': dlen = 8 Output with the fix: kernel: nf_conntrack_ftp: Pattern matches! kernel: nf_conntrack_ftp: Skipped up to 0x0 delimiter! kernel: nf_conntrack_ftp: Match succeeded! kernel: nf_conntrack_ftp: conntrack_ftp: match `172,17,0,100,200,207' (20 bytes at 4150681645) kernel: nf_conntrack_ftp: find_pattern `PORT': dlen = 8 Signed-off-by: Thomas Jarosch Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_ftp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net') diff --git a/net/netfilter/nf_conntrack_ftp.c b/net/netfilter/nf_conntrack_ftp.c index 0ecb3e289ef2..8d96738b7dfd 100644 --- a/net/netfilter/nf_conntrack_ftp.c +++ b/net/netfilter/nf_conntrack_ftp.c @@ -322,7 +322,7 @@ static int find_pattern(const char *data, size_t dlen, i++; } - pr_debug("Skipped up to `%c'!\n", skip); + pr_debug("Skipped up to 0x%hhx delimiter!\n", skip); *numoff = i; *numlen = getnum(data + i, dlen - i, cmd, term, numoff); -- cgit v1.2.3 From 478553fd1b6f819390b64a2e13ac756c4d1a2836 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Tue, 27 Aug 2019 13:24:52 +0200 Subject: netfilter: conntrack: make sysctls per-namespace again When I merged the extension sysctl tables with the main one I forgot to reset them on netns creation. They currently read/write init_net settings. Fixes: d912dec12428 ("netfilter: conntrack: merge acct and helper sysctl table with main one") Fixes: cb2833ed0044 ("netfilter: conntrack: merge ecache and timestamp sysctl tables with main one") Reported-by: Shmulik Ladkani Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_standalone.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'net') diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c index e0d392cb3075..0006503d2da9 100644 --- a/net/netfilter/nf_conntrack_standalone.c +++ b/net/netfilter/nf_conntrack_standalone.c @@ -1037,8 +1037,13 @@ static int nf_conntrack_standalone_init_sysctl(struct net *net) table[NF_SYSCTL_CT_COUNT].data = &net->ct.count; table[NF_SYSCTL_CT_CHECKSUM].data = &net->ct.sysctl_checksum; table[NF_SYSCTL_CT_LOG_INVALID].data = &net->ct.sysctl_log_invalid; + table[NF_SYSCTL_CT_ACCT].data = &net->ct.sysctl_acct; + table[NF_SYSCTL_CT_HELPER].data = &net->ct.sysctl_auto_assign_helper; #ifdef CONFIG_NF_CONNTRACK_EVENTS table[NF_SYSCTL_CT_EVENTS].data = &net->ct.sysctl_events; +#endif +#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP + table[NF_SYSCTL_CT_TIMESTAMP].data = &net->ct.sysctl_tstamp; #endif table[NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC].data = &nf_generic_pernet(net)->timeout; table[NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP].data = &nf_icmp_pernet(net)->timeout; -- cgit v1.2.3 From de20900fbe1c4fd36de25a7a5a43223254ecf0d0 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Tue, 27 Aug 2019 21:23:45 +0200 Subject: netfilter: nf_flow_table: clear skb tstamp before xmit If 'fq' qdisc is used and a program has requested timestamps, skb->tstamp needs to be cleared, else fq will treat these as 'transmit time'. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_flow_table_ip.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net') diff --git a/net/netfilter/nf_flow_table_ip.c b/net/netfilter/nf_flow_table_ip.c index d68c801dd614..b9e7dd6e60ce 100644 --- a/net/netfilter/nf_flow_table_ip.c +++ b/net/netfilter/nf_flow_table_ip.c @@ -228,7 +228,6 @@ static unsigned int nf_flow_xmit_xfrm(struct sk_buff *skb, { skb_orphan(skb); skb_dst_set_noref(skb, dst); - skb->tstamp = 0; dst_output(state->net, state->sk, skb); return NF_STOLEN; } @@ -284,6 +283,7 @@ nf_flow_offload_ip_hook(void *priv, struct sk_buff *skb, flow->timeout = (u32)jiffies + NF_FLOW_TIMEOUT; iph = ip_hdr(skb); ip_decrease_ttl(iph); + skb->tstamp = 0; if (unlikely(dst_xfrm(&rt->dst))) { memset(skb->cb, 0, sizeof(struct inet_skb_parm)); @@ -512,6 +512,7 @@ nf_flow_offload_ipv6_hook(void *priv, struct sk_buff *skb, flow->timeout = (u32)jiffies + NF_FLOW_TIMEOUT; ip6h = ipv6_hdr(skb); ip6h->hop_limit--; + skb->tstamp = 0; if (unlikely(dst_xfrm(&rt->dst))) { memset(skb->cb, 0, sizeof(struct inet6_skb_parm)); -- cgit v1.2.3 From daf1de9078792a4d60e36aa7ecf3aadca65277c2 Mon Sep 17 00:00:00 2001 From: wenxu Date: Wed, 28 Aug 2019 23:02:33 +0800 Subject: netfilter: nft_meta_bridge: Fix get NFT_META_BRI_IIFVPROTO in network byteorder Get the vlan_proto of ingress bridge in network byteorder as userspace expects. Otherwise this is inconsistent with NFT_META_PROTOCOL. Fixes: 2a3a93ef0ba5 ("netfilter: nft_meta_bridge: Add NFT_META_BRI_IIFVPROTO support") Signed-off-by: wenxu Signed-off-by: Pablo Neira Ayuso --- net/bridge/netfilter/nft_meta_bridge.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net') diff --git a/net/bridge/netfilter/nft_meta_bridge.c b/net/bridge/netfilter/nft_meta_bridge.c index 1804e867f715..7c9e92b2f806 100644 --- a/net/bridge/netfilter/nft_meta_bridge.c +++ b/net/bridge/netfilter/nft_meta_bridge.c @@ -53,7 +53,7 @@ static void nft_meta_bridge_get_eval(const struct nft_expr *expr, goto err; br_vlan_get_proto(br_dev, &p_proto); - nft_reg_store16(dest, p_proto); + nft_reg_store16(dest, htons(p_proto)); return; } default: -- cgit v1.2.3