diff options
28 files changed, 372 insertions, 254 deletions
diff --git a/include/net/netfilter/ipv4/nf_nat_redirect.h b/include/net/netfilter/ipv4/nf_nat_redirect.h deleted file mode 100644 index 19e1df3a0a4..00000000000 --- a/include/net/netfilter/ipv4/nf_nat_redirect.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef _NF_NAT_REDIRECT_IPV4_H_ -#define _NF_NAT_REDIRECT_IPV4_H_ - -unsigned int -nf_nat_redirect_ipv4(struct sk_buff *skb, - const struct nf_nat_ipv4_multi_range_compat *mr, - unsigned int hooknum); - -#endif /* _NF_NAT_REDIRECT_IPV4_H_ */ diff --git a/include/net/netfilter/ipv6/nf_nat_redirect.h b/include/net/netfilter/ipv6/nf_nat_redirect.h deleted file mode 100644 index 1ebdffc461c..00000000000 --- a/include/net/netfilter/ipv6/nf_nat_redirect.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef _NF_NAT_REDIRECT_IPV6_H_ -#define _NF_NAT_REDIRECT_IPV6_H_ - -unsigned int -nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range *range, - unsigned int hooknum); - -#endif /* _NF_NAT_REDIRECT_IPV6_H_ */ diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index c8a7db605e0..f0daed2b54d 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -92,12 +92,18 @@ struct nf_conn { /* Have we seen traffic both ways yet? (bitset) */ unsigned long status; - /* If we were expected by an expectation, this will be it */ - struct nf_conn *master; - /* Timer function; drops refcnt when it goes off. */ struct timer_list timeout; +#ifdef CONFIG_NET_NS + struct net *ct_net; +#endif + /* all members below initialized via memset */ + u8 __nfct_init_offset[0]; + + /* If we were expected by an expectation, this will be it */ + struct nf_conn *master; + #if defined(CONFIG_NF_CONNTRACK_MARK) u_int32_t mark; #endif @@ -108,9 +114,6 @@ struct nf_conn { /* Extensions */ struct nf_ct_ext *ext; -#ifdef CONFIG_NET_NS - struct net *ct_net; -#endif /* Storage reserved for other modules, must be the last member */ union nf_conntrack_proto proto; diff --git a/include/net/netfilter/nf_nat_redirect.h b/include/net/netfilter/nf_nat_redirect.h new file mode 100644 index 00000000000..73b72954330 --- /dev/null +++ b/include/net/netfilter/nf_nat_redirect.h @@ -0,0 +1,12 @@ +#ifndef _NF_NAT_REDIRECT_H_ +#define _NF_NAT_REDIRECT_H_ + +unsigned int +nf_nat_redirect_ipv4(struct sk_buff *skb, + const struct nf_nat_ipv4_multi_range_compat *mr, + unsigned int hooknum); +unsigned int +nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range *range, + unsigned int hooknum); + +#endif /* _NF_NAT_REDIRECT_H_ */ diff --git a/include/net/netfilter/nf_tables_bridge.h b/include/net/netfilter/nf_tables_bridge.h new file mode 100644 index 00000000000..511fb79f6da --- /dev/null +++ b/include/net/netfilter/nf_tables_bridge.h @@ -0,0 +1,7 @@ +#ifndef _NET_NF_TABLES_BRIDGE_H +#define _NET_NF_TABLES_BRIDGE_H + +int nft_bridge_iphdr_validate(struct sk_buff *skb); +int nft_bridge_ip6hdr_validate(struct sk_buff *skb); + +#endif /* _NET_NF_TABLES_BRIDGE_H */ diff --git a/include/uapi/linux/netfilter/ipset/ip_set.h b/include/uapi/linux/netfilter/ipset/ip_set.h index ca03119111a..5ab4e60894c 100644 --- a/include/uapi/linux/netfilter/ipset/ip_set.h +++ b/include/uapi/linux/netfilter/ipset/ip_set.h @@ -256,11 +256,17 @@ enum { IPSET_COUNTER_GT, }; -struct ip_set_counter_match { +/* Backward compatibility for set match v3 */ +struct ip_set_counter_match0 { __u8 op; __u64 value; }; +struct ip_set_counter_match { + __aligned_u64 value; + __u8 op; +}; + /* Interface to iptables/ip6tables */ #define SO_IP_SET 83 diff --git a/include/uapi/linux/netfilter/xt_set.h b/include/uapi/linux/netfilter/xt_set.h index d6a1df1f294..d4e02348384 100644 --- a/include/uapi/linux/netfilter/xt_set.h +++ b/include/uapi/linux/netfilter/xt_set.h @@ -66,8 +66,8 @@ struct xt_set_info_target_v2 { struct xt_set_info_match_v3 { struct xt_set_info match_set; - struct ip_set_counter_match packets; - struct ip_set_counter_match bytes; + struct ip_set_counter_match0 packets; + struct ip_set_counter_match0 bytes; __u32 flags; }; @@ -81,4 +81,13 @@ struct xt_set_info_target_v3 { __u32 timeout; }; +/* Revision 4 match */ + +struct xt_set_info_match_v4 { + struct xt_set_info match_set; + struct ip_set_counter_match packets; + struct ip_set_counter_match bytes; + __u32 flags; +}; + #endif /*_XT_SET_H*/ diff --git a/net/bridge/netfilter/nf_tables_bridge.c b/net/bridge/netfilter/nf_tables_bridge.c index 074c557ab50..19473a9371b 100644 --- a/net/bridge/netfilter/nf_tables_bridge.c +++ b/net/bridge/netfilter/nf_tables_bridge.c @@ -13,6 +13,82 @@ #include <linux/module.h> #include <linux/netfilter_bridge.h> #include <net/netfilter/nf_tables.h> +#include <net/netfilter/nf_tables_bridge.h> +#include <linux/ip.h> +#include <linux/ipv6.h> +#include <net/netfilter/nf_tables_ipv4.h> +#include <net/netfilter/nf_tables_ipv6.h> + +int nft_bridge_iphdr_validate(struct sk_buff *skb) +{ + struct iphdr *iph; + u32 len; + + if (!pskb_may_pull(skb, sizeof(struct iphdr))) + return 0; + + iph = ip_hdr(skb); + if (iph->ihl < 5 || iph->version != 4) + return 0; + + len = ntohs(iph->tot_len); + if (skb->len < len) + return 0; + else if (len < (iph->ihl*4)) + return 0; + + if (!pskb_may_pull(skb, iph->ihl*4)) + return 0; + + return 1; +} +EXPORT_SYMBOL_GPL(nft_bridge_iphdr_validate); + +int nft_bridge_ip6hdr_validate(struct sk_buff *skb) +{ + struct ipv6hdr *hdr; + u32 pkt_len; + + if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) + return 0; + + hdr = ipv6_hdr(skb); + if (hdr->version != 6) + return 0; + + pkt_len = ntohs(hdr->payload_len); + if (pkt_len + sizeof(struct ipv6hdr) > skb->len) + return 0; + + return 1; +} +EXPORT_SYMBOL_GPL(nft_bridge_ip6hdr_validate); + +static inline void nft_bridge_set_pktinfo_ipv4(struct nft_pktinfo *pkt, + const struct nf_hook_ops *ops, + struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out) +{ + if (nft_bridge_iphdr_validate(skb)) + nft_set_pktinfo_ipv4(pkt, ops, skb, in, out); + else + nft_set_pktinfo(pkt, ops, skb, in, out); +} + +static inline void nft_bridge_set_pktinfo_ipv6(struct nft_pktinfo *pkt, + const struct nf_hook_ops *ops, + struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out) +{ +#if IS_ENABLED(CONFIG_IPV6) + if (nft_bridge_ip6hdr_validate(skb) && + nft_set_pktinfo_ipv6(pkt, ops, skb, in, out) == 0) + return; +#endif + nft_set_pktinfo(pkt, ops, skb, in, out); +} static unsigned int nft_do_chain_bridge(const struct nf_hook_ops *ops, @@ -23,7 +99,17 @@ nft_do_chain_bridge(const struct nf_hook_ops *ops, { struct nft_pktinfo pkt; - nft_set_pktinfo(&pkt, ops, skb, in, out); + switch (eth_hdr(skb)->h_proto) { + case htons(ETH_P_IP): + nft_bridge_set_pktinfo_ipv4(&pkt, ops, skb, in, out); + break; + case htons(ETH_P_IPV6): + nft_bridge_set_pktinfo_ipv6(&pkt, ops, skb, in, out); + break; + default: + nft_set_pktinfo(&pkt, ops, skb, in, out); + break; + } return nft_do_chain(&pkt, ops); } diff --git a/net/bridge/netfilter/nft_reject_bridge.c b/net/bridge/netfilter/nft_reject_bridge.c index 48da2c54a69..b0330aecbf9 100644 --- a/net/bridge/netfilter/nft_reject_bridge.c +++ b/net/bridge/netfilter/nft_reject_bridge.c @@ -14,6 +14,7 @@ #include <linux/netfilter/nf_tables.h> #include <net/netfilter/nf_tables.h> #include <net/netfilter/nft_reject.h> +#include <net/netfilter/nf_tables_bridge.h> #include <net/netfilter/ipv4/nf_reject.h> #include <net/netfilter/ipv6/nf_reject.h> #include <linux/ip.h> @@ -35,30 +36,6 @@ static void nft_reject_br_push_etherhdr(struct sk_buff *oldskb, skb_pull(nskb, ETH_HLEN); } -static int nft_reject_iphdr_validate(struct sk_buff *oldskb) -{ - struct iphdr *iph; - u32 len; - - if (!pskb_may_pull(oldskb, sizeof(struct iphdr))) - return 0; - - iph = ip_hdr(oldskb); - if (iph->ihl < 5 || iph->version != 4) - return 0; - - len = ntohs(iph->tot_len); - if (oldskb->len < len) - return 0; - else if (len < (iph->ihl*4)) - return 0; - - if (!pskb_may_pull(oldskb, iph->ihl*4)) - return 0; - - return 1; -} - static void nft_reject_br_send_v4_tcp_reset(struct sk_buff *oldskb, int hook) { struct sk_buff *nskb; @@ -66,7 +43,7 @@ static void nft_reject_br_send_v4_tcp_reset(struct sk_buff *oldskb, int hook) const struct tcphdr *oth; struct tcphdr _oth; - if (!nft_reject_iphdr_validate(oldskb)) + if (!nft_bridge_iphdr_validate(oldskb)) return; oth = nf_reject_ip_tcphdr_get(oldskb, &_oth, hook); @@ -101,7 +78,7 @@ static void nft_reject_br_send_v4_unreach(struct sk_buff *oldskb, int hook, void *payload; __wsum csum; - if (!nft_reject_iphdr_validate(oldskb)) + if (!nft_bridge_iphdr_validate(oldskb)) return; /* IP header checks: fragment. */ @@ -146,25 +123,6 @@ static void nft_reject_br_send_v4_unreach(struct sk_buff *oldskb, int hook, br_deliver(br_port_get_rcu(oldskb->dev), nskb); } -static int nft_reject_ip6hdr_validate(struct sk_buff *oldskb) -{ - struct ipv6hdr *hdr; - u32 pkt_len; - - if (!pskb_may_pull(oldskb, sizeof(struct ipv6hdr))) - return 0; - - hdr = ipv6_hdr(oldskb); - if (hdr->version != 6) - return 0; - - pkt_len = ntohs(hdr->payload_len); - if (pkt_len + sizeof(struct ipv6hdr) > oldskb->len) - return 0; - - return 1; -} - static void nft_reject_br_send_v6_tcp_reset(struct net *net, struct sk_buff *oldskb, int hook) { @@ -174,7 +132,7 @@ static void nft_reject_br_send_v6_tcp_reset(struct net *net, unsigned int otcplen; struct ipv6hdr *nip6h; - if (!nft_reject_ip6hdr_validate(oldskb)) + if (!nft_bridge_ip6hdr_validate(oldskb)) return; oth = nf_reject_ip6_tcphdr_get(oldskb, &_oth, &otcplen, hook); @@ -207,7 +165,7 @@ static void nft_reject_br_send_v6_unreach(struct net *net, unsigned int len; void *payload; - if (!nft_reject_ip6hdr_validate(oldskb)) + if (!nft_bridge_ip6hdr_validate(oldskb)) return; /* Include "As much of invoking packet as possible without the ICMPv6 diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig index 8358b2da154..59f883d9cad 100644 --- a/net/ipv4/netfilter/Kconfig +++ b/net/ipv4/netfilter/Kconfig @@ -104,12 +104,6 @@ config NF_NAT_MASQUERADE_IPV4 This is the kernel functionality to provide NAT in the masquerade flavour (automatic source address selection). -config NF_NAT_REDIRECT_IPV4 - tristate "IPv4 redirect support" - help - This is the kernel functionality to provide NAT in the redirect - flavour (redirect packets to local machine). - config NFT_MASQ_IPV4 tristate "IPv4 masquerading support for nf_tables" depends on NF_TABLES_IPV4 @@ -123,7 +117,7 @@ config NFT_REDIR_IPV4 tristate "IPv4 redirect support for nf_tables" depends on NF_TABLES_IPV4 depends on NFT_REDIR - select NF_NAT_REDIRECT_IPV4 + select NF_NAT_REDIRECT help This is the expression that provides IPv4 redirect support for nf_tables. diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile index 902bcd1597b..7fe6c703528 100644 --- a/net/ipv4/netfilter/Makefile +++ b/net/ipv4/netfilter/Makefile @@ -31,7 +31,6 @@ obj-$(CONFIG_NF_NAT_H323) += nf_nat_h323.o obj-$(CONFIG_NF_NAT_PPTP) += nf_nat_pptp.o obj-$(CONFIG_NF_NAT_SNMP_BASIC) += nf_nat_snmp_basic.o obj-$(CONFIG_NF_NAT_MASQUERADE_IPV4) += nf_nat_masquerade_ipv4.o -obj-$(CONFIG_NF_NAT_REDIRECT_IPV4) += nf_nat_redirect_ipv4.o # NAT protocols (nf_nat) obj-$(CONFIG_NF_NAT_PROTO_GRE) += nf_nat_proto_gre.o diff --git a/net/ipv4/netfilter/nft_redir_ipv4.c b/net/ipv4/netfilter/nft_redir_ipv4.c index 643c5967aa2..ff2d23d8c87 100644 --- a/net/ipv4/netfilter/nft_redir_ipv4.c +++ b/net/ipv4/netfilter/nft_redir_ipv4.c @@ -14,7 +14,7 @@ #include <linux/netfilter/nf_tables.h> #include <net/netfilter/nf_tables.h> #include <net/netfilter/nf_nat.h> -#include <net/netfilter/ipv4/nf_nat_redirect.h> +#include <net/netfilter/nf_nat_redirect.h> #include <net/netfilter/nft_redir.h> static void nft_redir_ipv4_eval(const struct nft_expr *expr, diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig index 0dbe5c7953e..a069822936e 100644 --- a/net/ipv6/netfilter/Kconfig +++ b/net/ipv6/netfilter/Kconfig @@ -82,12 +82,6 @@ config NF_NAT_MASQUERADE_IPV6 This is the kernel functionality to provide NAT in the masquerade flavour (automatic source address selection) for IPv6. -config NF_NAT_REDIRECT_IPV6 - tristate "IPv6 redirect support" - help - This is the kernel functionality to provide NAT in the redirect - flavour (redirect packet to local machine) for IPv6. - config NFT_MASQ_IPV6 tristate "IPv6 masquerade support for nf_tables" depends on NF_TABLES_IPV6 @@ -101,7 +95,7 @@ config NFT_REDIR_IPV6 tristate "IPv6 redirect support for nf_tables" depends on NF_TABLES_IPV6 depends on NFT_REDIR - select NF_NAT_REDIRECT_IPV6 + select NF_NAT_REDIRECT help This is the expression that provides IPv4 redirect support for nf_tables. diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile index d2ac9f5f212..c36e0a5490d 100644 --- a/net/ipv6/netfilter/Makefile +++ b/net/ipv6/netfilter/Makefile @@ -19,7 +19,6 @@ obj-$(CONFIG_NF_CONNTRACK_IPV6) += nf_conntrack_ipv6.o nf_nat_ipv6-y := nf_nat_l3proto_ipv6.o nf_nat_proto_icmpv6.o obj-$(CONFIG_NF_NAT_IPV6) += nf_nat_ipv6.o obj-$(CONFIG_NF_NAT_MASQUERADE_IPV6) += nf_nat_masquerade_ipv6.o -obj-$(CONFIG_NF_NAT_REDIRECT_IPV6) += nf_nat_redirect_ipv6.o # defrag nf_defrag_ipv6-y := nf_defrag_ipv6_hooks.o nf_conntrack_reasm.o diff --git a/net/ipv6/netfilter/nf_log_ipv6.c b/net/ipv6/netfilter/nf_log_ipv6.c index 7fc34d1681a..ddf07e6f59d 100644 --- a/net/ipv6/netfilter/nf_log_ipv6.c +++ b/net/ipv6/netfilter/nf_log_ipv6.c @@ -422,6 +422,6 @@ module_init(nf_log_ipv6_init); module_exit(nf_log_ipv6_exit); MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>"); -MODULE_DESCRIPTION("Netfilter IPv4 packet logging"); +MODULE_DESCRIPTION("Netfilter IPv6 packet logging"); MODULE_LICENSE("GPL"); MODULE_ALIAS_NF_LOGGER(AF_INET6, 0); diff --git a/net/ipv6/netfilter/nf_nat_redirect_ipv6.c b/net/ipv6/netfilter/nf_nat_redirect_ipv6.c deleted file mode 100644 index ea1308aeb04..00000000000 --- a/net/ipv6/netfilter/nf_nat_redirect_ipv6.c +++ /dev/null @@ -1,75 +0,0 @@ -/* - * (C) 1999-2001 Paul `Rusty' Russell - * (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org> - * Copyright (c) 2011 Patrick McHardy <kaber@trash.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Based on Rusty Russell's IPv4 REDIRECT target. Development of IPv6 - * NAT funded by Astaro. - */ - -#include <linux/if.h> -#include <linux/inetdevice.h> -#include <linux/ip.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/netdevice.h> -#include <linux/netfilter.h> -#include <linux/types.h> -#include <linux/netfilter_ipv6.h> -#include <linux/netfilter/x_tables.h> -#include <net/addrconf.h> -#include <net/checksum.h> -#include <net/protocol.h> -#include <net/netfilter/nf_nat.h> -#include <net/netfilter/ipv6/nf_nat_redirect.h> - -static const struct in6_addr loopback_addr = IN6ADDR_LOOPBACK_INIT; - -unsigned int -nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range *range, - unsigned int hooknum) -{ - struct nf_nat_range newrange; - struct in6_addr newdst; - enum ip_conntrack_info ctinfo; - struct nf_conn *ct; - - ct = nf_ct_get(skb, &ctinfo); - if (hooknum == NF_INET_LOCAL_OUT) { - newdst = loopback_addr; - } else { - struct inet6_dev *idev; - struct inet6_ifaddr *ifa; - bool addr = false; - - rcu_read_lock(); - idev = __in6_dev_get(skb->dev); - if (idev != NULL) { - list_for_each_entry(ifa, &idev->addr_list, if_list) { - newdst = ifa->addr; - addr = true; - break; - } - } - rcu_read_unlock(); - - if (!addr) - return NF_DROP; - } - - newrange.flags = range->flags | NF_NAT_RANGE_MAP_IPS; - newrange.min_addr.in6 = newdst; - newrange.max_addr.in6 = newdst; - newrange.min_proto = range->min_proto; - newrange.max_proto = range->max_proto; - - return nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_DST); -} -EXPORT_SYMBOL_GPL(nf_nat_redirect_ipv6); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); diff --git a/net/ipv6/netfilter/nft_redir_ipv6.c b/net/ipv6/netfilter/nft_redir_ipv6.c index 83420eeaad1..2433a6bfb19 100644 --- a/net/ipv6/netfilter/nft_redir_ipv6.c +++ b/net/ipv6/netfilter/nft_redir_ipv6.c @@ -15,7 +15,7 @@ #include <net/netfilter/nf_tables.h> #include <net/netfilter/nf_nat.h> #include <net/netfilter/nft_redir.h> -#include <net/netfilter/ipv6/nf_nat_redirect.h> +#include <net/netfilter/nf_nat_redirect.h> static void nft_redir_ipv6_eval(const struct nft_expr *expr, struct nft_data data[NFT_REG_MAX + 1], diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index 57f15a9aa48..b02660fa9eb 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -411,6 +411,13 @@ config NF_NAT_TFTP depends on NF_CONNTRACK && NF_NAT default NF_NAT && NF_CONNTRACK_TFTP +config NF_NAT_REDIRECT + tristate "IPv4/IPv6 redirect support" + depends on NF_NAT + help + This is the kernel functionality to redirect packets to local + machine through NAT. + config NETFILTER_SYNPROXY tristate @@ -844,8 +851,7 @@ config NETFILTER_XT_TARGET_RATEEST config NETFILTER_XT_TARGET_REDIRECT tristate "REDIRECT target support" depends on NF_NAT - select NF_NAT_REDIRECT_IPV4 if NF_NAT_IPV4 - select NF_NAT_REDIRECT_IPV6 if NF_NAT_IPV6 + select NF_NAT_REDIRECT ---help--- REDIRECT is a special case of NAT: all incoming connections are mapped onto the incoming interface's address, causing the packets to diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile index f3eb4680f2e..89f73a9e987 100644 --- a/net/netfilter/Makefile +++ b/net/netfilter/Makefile @@ -51,6 +51,7 @@ nf_nat-y := nf_nat_core.o nf_nat_proto_unknown.o nf_nat_proto_common.o \ obj-$(CONFIG_NF_LOG_COMMON) += nf_log_common.o obj-$(CONFIG_NF_NAT) += nf_nat.o +obj-$(CONFIG_NF_NAT_REDIRECT) += nf_nat_redirect.o # NAT protocols (nf_nat) obj-$(CONFIG_NF_NAT_PROTO_DCCP) += nf_nat_proto_dccp.o diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h index fee7c64e4dd..974ff386db0 100644 --- a/net/netfilter/ipset/ip_set_hash_gen.h +++ b/net/netfilter/ipset/ip_set_hash_gen.h @@ -147,16 +147,22 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize) #else #define __CIDR(cidr, i) (cidr) #endif + +/* cidr + 1 is stored in net_prefixes to support /0 */ +#define SCIDR(cidr, i) (__CIDR(cidr, i) + 1) + #ifdef IP_SET_HASH_WITH_NETS_PACKED -/* When cidr is packed with nomatch, cidr - 1 is stored in the entry */ -#define CIDR(cidr, i) (__CIDR(cidr, i) + 1) +/* When cidr is packed with nomatch, cidr - 1 is stored in the data entry */ +#define GCIDR(cidr, i) (__CIDR(cidr, i) + 1) +#define NCIDR(cidr) (cidr) #else -#define CIDR(cidr, i) (__CIDR(cidr, i)) +#define GCIDR(cidr, i) (__CIDR(cidr, i)) +#define NCIDR(cidr) (cidr - 1) #endif #define SET_HOST_MASK(family) (family == AF_INET ? 32 : 128) -#ifdef IP_SET_HASH_WITH_MULTI +#ifdef IP_SET_HASH_WITH_NET0 #define NLEN(family) (SET_HOST_MASK(family) + 1) #else #define NLEN(family) SET_HOST_MASK(family) @@ -292,24 +298,22 @@ mtype_add_cidr(struct htype *h, u8 cidr, u8 nets_length, u8 n) int i, j; /* Add in increasing prefix order, so larger cidr first */ - for (i = 0, j = -1; i < nets_length && h->nets[i].nets[n]; i++) { + for (i = 0, j = -1; i < nets_length && h->nets[i].cidr[n]; i++) { if (j != -1) continue; else if (h->nets[i].cidr[n] < cidr) j = i; else if (h->nets[i].cidr[n] == cidr) { - h->nets[i].nets[n]++; + h->nets[cidr - 1].nets[n]++; return; } } if (j != -1) { - for (; i > j; i--) { + for (; i > j; i--) h->nets[i].cidr[n] = h->nets[i - 1].cidr[n]; - h->nets[i].nets[n] = h->nets[i - 1].nets[n]; - } } h->nets[i].cidr[n] = cidr; - h->nets[i].nets[n] = 1; + h->nets[cidr - 1].nets[n] = 1; } static void @@ -320,16 +324,12 @@ mtype_del_cidr(struct htype *h, u8 cidr, u8 nets_length, u8 n) for (i = 0; i < nets_length; i++) { if (h->nets[i].cidr[n] != cidr) continue; - if (h->nets[i].nets[n] > 1 || i == net_end || - h->nets[i + 1].nets[n] == 0) { - h->nets[i].nets[n]--; + h->nets[cidr -1].nets[n]--; + if (h->nets[cidr -1].nets[n] > 0) return; - } - for (j = i; j < net_end && h->nets[j].nets[n]; j++) { + for (j = i; j < net_end && h->nets[j].cidr[n]; j++) h->nets[j].cidr[n] = h->nets[j + 1].cidr[n]; - h->nets[j].nets[n] = h->nets[j + 1].nets[n]; - } - h->nets[j].nets[n] = 0; + h->nets[j].cidr[n] = 0; return; } } @@ -486,7 +486,7 @@ mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize) pr_debug("expired %u/%u\n", i, j); #ifdef IP_SET_HASH_WITH_NETS for (k = 0; k < IPSET_NET_COUNT; k++) - mtype_del_cidr(h, CIDR(data->cidr, k), + mtype_del_cidr(h, SCIDR(data->cidr, k), nets_length, k); #endif ip_set_ext_destroy(set, data); @@ -633,29 +633,6 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext, bool flag_exist = flags & IPSET_FLAG_EXIST; u32 key, multi = 0; - if (h->elements >= h->maxelem && SET_WITH_FORCEADD(set)) { - rcu_read_lock_bh(); - t = rcu_dereference_bh(h->table); - key = HKEY(value, h->initval, t->htable_bits); - n = hbucket(t,key); - if (n->pos) { - /* Choosing the first entry in the array to replace */ - j = 0; - goto reuse_slot; - } - rcu_read_unlock_bh(); - } - if (SET_WITH_TIMEOUT(set) && h->elements >= h->maxelem) - /* FIXME: when set is full, we slow down here */ - mtype_expire(set, h, NLEN(set->family), set->dsize); - - if (h->elements >= h->maxelem) { - if (net_ratelimit()) - pr_warn("Set %s is full, maxelem %u reached\n", - set->name, h->maxelem); - return -IPSET_ERR_HASH_FULL; - } - rcu_read_lock_bh(); t = rcu_dereference_bh(h->table); key = HKEY(value, h->initval, t->htable_bits); @@ -680,15 +657,32 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext, j != AHASH_MAX(h) + 1) j = i; } + if (h->elements >= h->maxelem && SET_WITH_FORCEADD(set) && n->pos) { + /* Choosing the first entry in the array to replace */ + j = 0; + goto reuse_slot; + } + if (SET_WITH_TIMEOUT(set) && h->elements >= h->maxelem) + /* FIXME: when set is full, we slow down here */ + mtype_expire(set, h, NLEN(set->family), set->dsize); + + if (h->elements >= h->maxelem) { + if (net_ratelimit()) + pr_warn("Set %s is full, maxelem %u reached\n", + set->name, h->maxelem); + ret = -IPSET_ERR_HASH_FULL; + goto out; + } + reuse_slot: if (j != AHASH_MAX(h) + 1) { /* Fill out reused slot */ data = ahash_data(n, j, set->dsize); #ifdef IP_SET_HASH_WITH_NETS for (i = 0; i < IPSET_NET_COUNT; i++) { - mtype_del_cidr(h, CIDR(data->cidr, i), + mtype_del_cidr(h, SCIDR(data->cidr, i), NLEN(set->family), i); - mtype_add_cidr(h, CIDR(d->cidr, i), + mtype_add_cidr(h, SCIDR(d->cidr, i), NLEN(set->family), i); } #endif @@ -705,7 +699,7 @@ reuse_slot: data = ahash_data(n, n->pos++, set->dsize); #ifdef IP_SET_HASH_WITH_NETS for (i = 0; i < IPSET_NET_COUNT; i++) - mtype_add_cidr(h, CIDR(d->cidr, i), NLEN(set->family), + mtype_add_cidr(h, SCIDR(d->cidr, i), NLEN(set->family), i); #endif h->elements++; @@ -766,7 +760,7 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext, h->elements--; #ifdef IP_SET_HASH_WITH_NETS for (j = 0; j < IPSET_NET_COUNT; j++) - mtype_del_cidr(h, CIDR(d->cidr, j), NLEN(set->family), + mtype_del_cidr(h, SCIDR(d->cidr, j), NLEN(set->family), j); #endif ip_set_ext_destroy(set, data); @@ -827,15 +821,15 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d, u8 nets_length = NLEN(set->family); pr_debug("test by nets\n"); - for (; j < nets_length && h->nets[j].nets[0] && !multi; j++) { + for (; j < nets_length && h->nets[j].cidr[0] && !multi; j++) { #if IPSET_NET_COUNT == 2 mtype_data_reset_elem(d, &orig); - mtype_data_netmask(d, h->nets[j].cidr[0], false); - for (k = 0; k < nets_length && h->nets[k].nets[1] && !multi; + mtype_data_netmask(d, NCIDR(h->nets[j].cidr[0]), false); + for (k = 0; k < nets_length && h->nets[k].cidr[1] && !multi; k++) { - mtype_data_netmask(d, h->nets[k].cidr[1], true); + mtype_data_netmask(d, NCIDR(h->nets[k].cidr[1]), true); #else - mtype_data_netmask(d, h->nets[j].cidr[0]); + mtype_data_netmask(d, NCIDR(h->nets[j].cidr[0])); #endif key = HKEY(d, h->initval, t->htable_bits); n = hbucket(t, key); @@ -883,7 +877,7 @@ mtype_test(struct ip_set *set, void *value, const struct ip_set_ext *ext, /* If we test an IP address and not a network address, * try all possible network sizes */ for (i = 0; i < IPSET_NET_COUNT; i++) - if (CIDR(d->cidr, i) != SET_HOST_MASK(set->family)) + if (GCIDR(d->cidr, i) != SET_HOST_MASK(set->family)) break; if (i == IPSET_NET_COUNT) { ret = mtype_test_cidrs(set, d, ext, mext, flags); @@ -1107,8 +1101,7 @@ IPSET_TOKEN(HTYPE, _create)(struct net *net, struct ip_set *set, hsize = sizeof(*h); #ifdef IP_SET_HASH_WITH_NETS - hsize += sizeof(struct net_prefixes) * - (set->family == NFPROTO_IPV4 ? 32 : 128); + hsize += sizeof(struct net_prefixes) * NLEN(set->family); #endif h = kzalloc(hsize, GFP_KERNEL); if (!h) diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c index 35dd3587344..758b002130d 100644 --- a/net/netfilter/ipset/ip_set_hash_netiface.c +++ b/net/netfilter/ipset/ip_set_hash_netiface.c @@ -115,6 +115,7 @@ iface_add(struct rb_root *root, const char **iface) #define IP_SET_HASH_WITH_NETS #define IP_SET_HASH_WITH_RBTREE #define IP_SET_HASH_WITH_MULTI +#define IP_SET_HASH_WITH_NET0 #define STREQ(a, b) (strcmp(a, b) == 0) diff --git a/net/netfilter/ipset/ip_set_hash_netnet.c b/net/netfilter/ipset/ip_set_hash_netnet.c index da00284b357..ea8772afb6e 100644 --- a/net/netfilter/ipset/ip_set_hash_netnet.c +++ b/net/netfilter/ipset/ip_set_hash_netnet.c @@ -46,6 +46,7 @@ struct hash_netnet4_elem { __be64 ipcmp; }; u8 nomatch; + u8 padding; union { u8 cidr[2]; u16 ccmp; @@ -271,6 +272,7 @@ hash_netnet4_uadt(struct ip_set *set, struct nlattr *tb[], struct hash_netnet6_elem { union nf_inet_addr ip[2]; u8 nomatch; + u8 padding; union { u8 cidr[2]; u16 ccmp; diff --git a/net/netfilter/ipset/ip_set_hash_netportnet.c b/net/netfilter/ipset/ip_set_hash_netportnet.c index b8053d675fc..bfaa94c7baa 100644 --- a/net/netfilter/ipset/ip_set_hash_netportnet.c +++ b/net/netfilter/ipset/ip_set_hash_netportnet.c @@ -53,6 +53,7 @@ struct hash_netportnet4_elem { u8 cidr[2]; u16 ccmp; }; + u16 padding; u8 nomatch:1; u8 proto; }; @@ -324,6 +325,7 @@ struct hash_netportnet6_elem { u8 cidr[2]; u16 ccmp; }; + u16 padding; u8 nomatch:1; u8 proto; }; diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 5016a692908..a1167480670 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -824,22 +824,19 @@ __nf_conntrack_alloc(struct net *net, u16 zone, atomic_dec(&net->ct.count); return ERR_PTR(-ENOMEM); } - /* - * Let ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode.next - * and ct->tuplehash[IP_CT_DIR_REPLY].hnnode.next unchanged. - */ - memset(&ct->tuplehash[IP_CT_DIR_MAX], 0, - offsetof(struct nf_conn, proto) - - offsetof(struct nf_conn, tuplehash[IP_CT_DIR_MAX])); spin_lock_init(&ct->lock); ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple = *orig; ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode.pprev = NULL; ct->tuplehash[IP_CT_DIR_REPLY].tuple = *repl; /* save hash for reusing when confirming */ *(unsigned long *)(&ct->tuplehash[IP_CT_DIR_REPLY].hnnode.pprev) = hash; + ct->status = 0; /* Don't set timer yet: wait for confirmation */ setup_timer(&ct->timeout, death_by_timeout, (unsigned long)ct); write_pnet(&ct->ct_net, net); + memset(&ct->__nfct_init_offset[0], 0, + offsetof(struct nf_conn, proto) - + offsetof(struct nf_conn, __nfct_init_offset[0])); #ifdef CONFIG_NF_CONNTRACK_ZONES if (zone) { struct nf_conntrack_zone *nf_ct_zone; diff --git a/net/ipv4/netfilter/nf_nat_redirect_ipv4.c b/net/netfilter/nf_nat_redirect.c index a220552fc53..97b75f9bfbc 100644 --- a/net/ipv4/netfilter/nf_nat_redirect_ipv4.c +++ b/net/netfilter/nf_nat_redirect.c @@ -20,12 +20,13 @@ #include <linux/netfilter.h> #include <linux/types.h> #include <linux/netfilter_ipv4.h> +#include <linux/netfilter_ipv6.h> #include <linux/netfilter/x_tables.h> #include <net/addrconf.h> #include <net/checksum.h> #include <net/protocol.h> #include <net/netfilter/nf_nat.h> -#include <net/netfilter/ipv4/nf_nat_redirect.h> +#include <net/netfilter/nf_nat_redirect.h> unsigned int nf_nat_redirect_ipv4(struct sk_buff *skb, @@ -78,5 +79,49 @@ nf_nat_redirect_ipv4(struct sk_buff *skb, } EXPORT_SYMBOL_GPL(nf_nat_redirect_ipv4); +static const struct in6_addr loopback_addr = IN6ADDR_LOOPBACK_INIT; + +unsigned int +nf_nat_redirect_ipv6(struct sk_buff *skb, const struct nf_nat_range *range, + unsigned int hooknum) +{ + struct nf_nat_range newrange; + struct in6_addr newdst; + enum ip_conntrack_info ctinfo; + struct nf_conn *ct; + + ct = nf_ct_get(skb, &ctinfo); + if (hooknum == NF_INET_LOCAL_OUT) { + newdst = loopback_addr; + } else { + struct inet6_dev *idev; + struct inet6_ifaddr *ifa; + bool addr = false; + + rcu_read_lock(); + idev = __in6_dev_get(skb->dev); + if (idev != NULL) { + list_for_each_entry(ifa, &idev->addr_list, if_list) { + newdst = ifa->addr; + addr = true; + break; + } + } + rcu_read_unlock(); + + if (!addr) + return NF_DROP; + } + + newrange.flags = range->flags | NF_NAT_RANGE_MAP_IPS; + newrange.min_addr.in6 = newdst; + newrange.max_addr.in6 = newdst; + newrange.min_proto = range->min_proto; + newrange.max_proto = range->max_proto; + + return nf_nat_setup_info(ct, &newrange, NF_NAT_MANIP_DST); +} +EXPORT_SYMBOL_GPL(nf_nat_redirect_ipv6); + MODULE_LICENSE("GPL"); MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); diff --git a/net/netfilter/xt_REDIRECT.c b/net/netfilter/xt_REDIRECT.c index b6ec67efd90..03f0b370e17 100644 --- a/net/netfilter/xt_REDIRECT.c +++ b/net/netfilter/xt_REDIRECT.c @@ -26,8 +26,7 @@ #include <net/checksum.h> #include <net/protocol.h> #include <net/netfilter/nf_nat.h> -#include <net/netfilter/ipv4/nf_nat_redirect.h> -#include <net/netfilter/ipv6/nf_nat_redirect.h> +#include <net/netfilter/nf_nat_redirect.h> static unsigned int redirect_tg6(struct sk_buff *skb, const struct xt_action_param *par) diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index a9faae89f95..30dbe34915a 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -43,25 +43,29 @@ MODULE_LICENSE("GPL"); MODULE_ALIAS("ipt_recent"); MODULE_ALIAS("ip6t_recent"); -static unsigned int ip_list_tot = 100; -static unsigned int ip_pkt_list_tot = 20; -static unsigned int ip_list_hash_size = 0; -static unsigned int ip_list_perms = 0644; -static unsigned int ip_list_uid = 0; -static unsigned int ip_list_gid = 0; +static unsigned int ip_list_tot __read_mostly = 100; +static unsigned int ip_list_hash_size __read_mostly; +static unsigned int ip_list_perms __read_mostly = 0644; +static unsigned int ip_list_uid __read_mostly; +static unsigned int ip_list_gid __read_mostly; module_param(ip_list_tot, uint, 0400); -module_param(ip_pkt_list_tot, uint, 0400); module_param(ip_list_hash_size, uint, 0400); module_param(ip_list_perms, uint, 0400); module_param(ip_list_uid, uint, S_IRUGO | S_IWUSR); module_param(ip_list_gid, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ip_list_tot, "number of IPs to remember per list"); -MODULE_PARM_DESC(ip_pkt_list_tot, "number of packets per IP address to remember (max. 255)"); MODULE_PARM_DESC(ip_list_hash_size, "size of hash table used to look up IPs"); MODULE_PARM_DESC(ip_list_perms, "permissions on /proc/net/xt_recent/* files"); MODULE_PARM_DESC(ip_list_uid, "default owner of /proc/net/xt_recent/* files"); MODULE_PARM_DESC(ip_list_gid, "default owning group of /proc/net/xt_recent/* files"); +/* retained for backwards compatibility */ +static unsigned int ip_pkt_list_tot __read_mostly; +module_param(ip_pkt_list_tot, uint, 0400); +MODULE_PARM_DESC(ip_pkt_list_tot, "number of packets per IP address to remember (max. 255)"); + +#define XT_RECENT_MAX_NSTAMPS 256 + struct recent_entry { struct list_head list; struct list_head lru_list; @@ -79,6 +83,7 @@ struct recent_table { union nf_inet_addr mask; unsigned int refcnt; unsigned int entries; + u8 nstamps_max_mask; struct list_head lru_list; struct list_head iphash[0]; }; @@ -90,7 +95,8 @@ struct recent_net { #endif }; -static int recent_net_id; +static int recent_net_id __read_mostly; + static inline struct recent_net *recent_pernet(struct net *net) { return net_generic(net, recent_net_id); @@ -171,12 +177,15 @@ recent_entry_init(struct recent_table *t, const union nf_inet_addr *addr, u_int16_t family, u_int8_t ttl) { struct recent_entry *e; + unsigned int nstamps_max = t->nstamps_max_mask; if (t->entries >= ip_list_tot) { e = list_entry(t->lru_list.next, struct recent_entry, lru_list); recent_entry_remove(t, e); } - e = kmalloc(sizeof(*e) + sizeof(e->stamps[0]) * ip_pkt_list_tot, + + nstamps_max += 1; + e = kmalloc(sizeof(*e) + sizeof(e->stamps[0]) * nstamps_max, GFP_ATOMIC); if (e == NULL) return NULL; @@ -197,7 +206,7 @@ recent_entry_init(struct recent_table *t, const union nf_inet_addr *addr, static void recent_entry_update(struct recent_table *t, struct recent_entry *e) { - e->index %= ip_pkt_list_tot; + e->index &= t->nstamps_max_mask; e->stamps[e->index++] = jiffies; if (e->index > e->nstamps) e->nstamps = e->index; @@ -326,6 +335,7 @@ static int recent_mt_check(const struct xt_mtchk_param *par, kuid_t uid; kgid_t gid; #endif + unsigned int nstamp_mask; unsigned int i; int ret = -EINVAL; size_t sz; @@ -349,19 +359,33 @@ static int recent_mt_check(const struct xt_mtchk_param *par, return -EINVAL; if ((info->check_set & XT_RECENT_REAP) && !info->seconds) return -EINVAL; - if (info->hit_count > ip_pkt_list_tot) { - pr_info("hitcount (%u) is larger than " - "packets to be remembered (%u)\n", - info->hit_count, ip_pkt_list_tot); + if (info->hit_count >= XT_RECENT_MAX_NSTAMPS) { + pr_info("hitcount (%u) is larger than allowed maximum (%u)\n", + info->hit_count, XT_RECENT_MAX_NSTAMPS - 1); return -EINVAL; } if (info->name[0] == '\0' || strnlen(info->name, XT_RECENT_NAME_LEN) == XT_RECENT_NAME_LEN) return -EINVAL; + if (ip_pkt_list_tot && info->hit_count < ip_pkt_list_tot) + nstamp_mask = roundup_pow_of_two(ip_pkt_list_tot) - 1; + else if (info->hit_count) + nstamp_mask = roundup_pow_of_two(info->hit_count) - 1; + else + nstamp_mask = 32 - 1; + mutex_lock(&recent_mutex); t = recent_table_lookup(recent_net, info->name); if (t != NULL) { + if (info->hit_count > t->nstamps_max_mask) { + pr_info("hitcount (%u) is larger than packets to be remembered (%u) for table %s\n", + info->hit_count, t->nstamps_max_mask + 1, + info->name); + ret = -EINVAL; + goto out; + } + t->refcnt++; ret = 0; goto out; @@ -377,6 +401,7 @@ static int recent_mt_check(const struct xt_mtchk_param *par, goto out; } t->refcnt = 1; + t->nstamps_max_mask = nstamp_mask; memcpy(&t->mask, &info->mask, sizeof(t->mask)); strcpy(t->name, info->name); @@ -497,9 +522,12 @@ static void recent_seq_stop(struct seq_file *s, void *v) static int recent_seq_show(struct seq_file *seq, void *v) { const struct recent_entry *e = v; + struct recent_iter_state *st = seq->private; + const struct recent_table *t = st->table; unsigned int i; - i = (e->index - 1) % ip_pkt_list_tot; + i = (e->index - 1) & t->nstamps_max_mask; + if (e->family == NFPROTO_IPV4) seq_printf(seq, "src=%pI4 ttl: %u last_seen: %lu oldest_pkt: %u", &e->addr.ip, e->ttl, e->stamps[i], e->index); @@ -717,7 +745,9 @@ static int __init recent_mt_init(void) { int err; - if (!ip_list_tot || !ip_pkt_list_tot || ip_pkt_list_tot > 255) + BUILD_BUG_ON_NOT_POWER_OF_2(XT_RECENT_MAX_NSTAMPS); + + if (!ip_list_tot || ip_pkt_list_tot >= XT_RECENT_MAX_NSTAMPS) return -EINVAL; ip_list_hash_size = 1 << fls(ip_list_tot); diff --git a/net/netfilter/xt_set.c b/net/netfilter/xt_set.c index 5732cd64acc..0d47afea968 100644 --- a/net/netfilter/xt_set.c +++ b/net/netfilter/xt_set.c @@ -157,7 +157,7 @@ set_match_v1_destroy(const struct xt_mtdtor_param *par) /* Revision 3 match */ static bool -match_counter(u64 counter, const struct ip_set_counter_match *info) +match_counter0(u64 counter, const struct ip_set_counter_match0 *info) { switch (info->op) { case IPSET_COUNTER_NONE: @@ -192,14 +192,60 @@ set_match_v3(const struct sk_buff *skb, struct xt_action_param *par) if (!(ret && opt.cmdflags & IPSET_FLAG_MATCH_COUNTERS)) return ret; - if (!match_counter(opt.ext.packets, &info->packets)) + if (!match_counter0(opt.ext.packets, &info->packets)) return 0; - return match_counter(opt.ext.bytes, &info->bytes); + return match_counter0(opt.ext.bytes, &info->bytes); } #define set_match_v3_checkentry set_match_v1_checkentry #define set_match_v3_destroy set_match_v1_destroy +/* Revision 4 match */ + +static bool +match_counter(u64 counter, const struct ip_set_counter_match *info) +{ + switch (info->op) { + case IPSET_COUNTER_NONE: + return true; + case IPSET_COUNTER_EQ: + return counter == info->value; + case IPSET_COUNTER_NE: + return counter != info->value; + case IPSET_COUNTER_LT: + return counter < info->value; + case IPSET_COUNTER_GT: + return counter > info->value; + } + return false; +} + +static bool +set_match_v4(const struct sk_buff *skb, struct xt_action_param *par) +{ + const struct xt_set_info_match_v4 *info = par->matchinfo; + ADT_OPT(opt, par->family, info->match_set.dim, + info->match_set.flags, info->flags, UINT_MAX); + int ret; + + if (info->packets.op != IPSET_COUNTER_NONE || + info->bytes.op != IPSET_COUNTER_NONE) + opt.cmdflags |= IPSET_FLAG_MATCH_COUNTERS; + + ret = match_set(info->match_set.index, skb, par, &opt, + info->match_set.flags & IPSET_INV_MATCH); + + if (!(ret && opt.cmdflags & IPSET_FLAG_MATCH_COUNTERS)) + return ret; + + if (!match_counter(opt.ext.packets, &info->packets)) + return 0; + return match_counter(opt.ext.bytes, &info->bytes); +} + +#define set_match_v4_checkentry set_match_v1_checkentry +#define set_match_v4_destroy set_match_v1_destroy + /* Revision 0 interface: backward compatible with netfilter/iptables */ static unsigned int @@ -573,6 +619,27 @@ static struct xt_match set_matches[] __read_mostly = { .destroy = set_match_v3_destroy, .me = THIS_MODULE }, + /* new revision for counters support: update, match */ + { + .name = "set", + .family = NFPROTO_IPV4, + .revision = 4, + .match = set_match_v4, + .matchsize = sizeof(struct xt_set_info_match_v4), + .checkentry = set_match_v4_checkentry, + .destroy = set_match_v4_destroy, + .me = THIS_MODULE + }, + { + .name = "set", + .family = NFPROTO_IPV6, + .revision = 4, + .match = set_match_v4, + .matchsize = sizeof(struct xt_set_info_match_v4), + .checkentry = set_match_v4_checkentry, + .destroy = set_match_v4_destroy, + .me = THIS_MODULE + }, }; static struct xt_target set_targets[] __read_mostly = { |