diff options
author | Eric W. Biederman <ebiederm@xmission.com> | 2015-09-18 14:33:02 -0500 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-09-18 21:59:11 +0200 |
commit | 206e8c00752fbe9cc463184236ac64b2a532cda5 (patch) | |
tree | b17cca056c6bbe6d0ae94dfeda77e62ebcfa2856 | |
parent | 88182a0e0c665cbd2f01af743c7f88e494924246 (diff) | |
download | op-kernel-dev-206e8c00752fbe9cc463184236ac64b2a532cda5.zip op-kernel-dev-206e8c00752fbe9cc463184236ac64b2a532cda5.tar.gz |
netfilter: Pass net to nf_dup_ipv4 and nf_dup_ipv6
This allows them to stop guessing the network namespace with pick_net.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
-rw-r--r-- | include/net/netfilter/ipv4/nf_dup_ipv4.h | 2 | ||||
-rw-r--r-- | include/net/netfilter/ipv6/nf_dup_ipv6.h | 2 | ||||
-rw-r--r-- | net/ipv4/netfilter/nf_dup_ipv4.c | 23 | ||||
-rw-r--r-- | net/ipv4/netfilter/nft_dup_ipv4.c | 2 | ||||
-rw-r--r-- | net/ipv6/netfilter/nf_dup_ipv6.c | 23 | ||||
-rw-r--r-- | net/ipv6/netfilter/nft_dup_ipv6.c | 2 | ||||
-rw-r--r-- | net/netfilter/xt_TEE.c | 4 |
7 files changed, 14 insertions, 44 deletions
diff --git a/include/net/netfilter/ipv4/nf_dup_ipv4.h b/include/net/netfilter/ipv4/nf_dup_ipv4.h index 42008f1..0a14733 100644 --- a/include/net/netfilter/ipv4/nf_dup_ipv4.h +++ b/include/net/netfilter/ipv4/nf_dup_ipv4.h @@ -1,7 +1,7 @@ #ifndef _NF_DUP_IPV4_H_ #define _NF_DUP_IPV4_H_ -void nf_dup_ipv4(struct sk_buff *skb, unsigned int hooknum, +void nf_dup_ipv4(struct net *net, struct sk_buff *skb, unsigned int hooknum, const struct in_addr *gw, int oif); #endif /* _NF_DUP_IPV4_H_ */ diff --git a/include/net/netfilter/ipv6/nf_dup_ipv6.h b/include/net/netfilter/ipv6/nf_dup_ipv6.h index ed6bd66..fa6237b 100644 --- a/include/net/netfilter/ipv6/nf_dup_ipv6.h +++ b/include/net/netfilter/ipv6/nf_dup_ipv6.h @@ -1,7 +1,7 @@ #ifndef _NF_DUP_IPV6_H_ #define _NF_DUP_IPV6_H_ -void nf_dup_ipv6(struct sk_buff *skb, unsigned int hooknum, +void nf_dup_ipv6(struct net *net, struct sk_buff *skb, unsigned int hooknum, const struct in6_addr *gw, int oif); #endif /* _NF_DUP_IPV6_H_ */ diff --git a/net/ipv4/netfilter/nf_dup_ipv4.c b/net/ipv4/netfilter/nf_dup_ipv4.c index 2d79e6e..ce2a59e 100644 --- a/net/ipv4/netfilter/nf_dup_ipv4.c +++ b/net/ipv4/netfilter/nf_dup_ipv4.c @@ -23,25 +23,10 @@ #include <net/netfilter/nf_conntrack.h> #endif -static struct net *pick_net(struct sk_buff *skb) -{ -#ifdef CONFIG_NET_NS - const struct dst_entry *dst; - - if (skb->dev != NULL) - return dev_net(skb->dev); - dst = skb_dst(skb); - if (dst != NULL && dst->dev != NULL) - return dev_net(dst->dev); -#endif - return &init_net; -} - -static bool nf_dup_ipv4_route(struct sk_buff *skb, const struct in_addr *gw, - int oif) +static bool nf_dup_ipv4_route(struct net *net, struct sk_buff *skb, + const struct in_addr *gw, int oif) { const struct iphdr *iph = ip_hdr(skb); - struct net *net = pick_net(skb); struct rtable *rt; struct flowi4 fl4; @@ -65,7 +50,7 @@ static bool nf_dup_ipv4_route(struct sk_buff *skb, const struct in_addr *gw, return true; } -void nf_dup_ipv4(struct sk_buff *skb, unsigned int hooknum, +void nf_dup_ipv4(struct net *net, struct sk_buff *skb, unsigned int hooknum, const struct in_addr *gw, int oif) { struct iphdr *iph; @@ -105,7 +90,7 @@ void nf_dup_ipv4(struct sk_buff *skb, unsigned int hooknum, --iph->ttl; ip_send_check(iph); - if (nf_dup_ipv4_route(skb, gw, oif)) { + if (nf_dup_ipv4_route(net, skb, gw, oif)) { __this_cpu_write(nf_skb_duplicated, true); ip_local_out(skb); __this_cpu_write(nf_skb_duplicated, false); diff --git a/net/ipv4/netfilter/nft_dup_ipv4.c b/net/ipv4/netfilter/nft_dup_ipv4.c index 30bcf820..bf855e6 100644 --- a/net/ipv4/netfilter/nft_dup_ipv4.c +++ b/net/ipv4/netfilter/nft_dup_ipv4.c @@ -30,7 +30,7 @@ static void nft_dup_ipv4_eval(const struct nft_expr *expr, }; int oif = regs->data[priv->sreg_dev]; - nf_dup_ipv4(pkt->skb, pkt->hook, &gw, oif); + nf_dup_ipv4(pkt->net, pkt->skb, pkt->hook, &gw, oif); } static int nft_dup_ipv4_init(const struct nft_ctx *ctx, diff --git a/net/ipv6/netfilter/nf_dup_ipv6.c b/net/ipv6/netfilter/nf_dup_ipv6.c index c8ab626..ee0d9a5 100644 --- a/net/ipv6/netfilter/nf_dup_ipv6.c +++ b/net/ipv6/netfilter/nf_dup_ipv6.c @@ -19,25 +19,10 @@ #include <net/netfilter/nf_conntrack.h> #endif -static struct net *pick_net(struct sk_buff *skb) -{ -#ifdef CONFIG_NET_NS - const struct dst_entry *dst; - - if (skb->dev != NULL) - return dev_net(skb->dev); - dst = skb_dst(skb); - if (dst != NULL && dst->dev != NULL) - return dev_net(dst->dev); -#endif - return &init_net; -} - -static bool nf_dup_ipv6_route(struct sk_buff *skb, const struct in6_addr *gw, - int oif) +static bool nf_dup_ipv6_route(struct net *net, struct sk_buff *skb, + const struct in6_addr *gw, int oif) { const struct ipv6hdr *iph = ipv6_hdr(skb); - struct net *net = pick_net(skb); struct dst_entry *dst; struct flowi6 fl6; @@ -61,7 +46,7 @@ static bool nf_dup_ipv6_route(struct sk_buff *skb, const struct in6_addr *gw, return true; } -void nf_dup_ipv6(struct sk_buff *skb, unsigned int hooknum, +void nf_dup_ipv6(struct net *net, struct sk_buff *skb, unsigned int hooknum, const struct in6_addr *gw, int oif) { if (this_cpu_read(nf_skb_duplicated)) @@ -81,7 +66,7 @@ void nf_dup_ipv6(struct sk_buff *skb, unsigned int hooknum, struct ipv6hdr *iph = ipv6_hdr(skb); --iph->hop_limit; } - if (nf_dup_ipv6_route(skb, gw, oif)) { + if (nf_dup_ipv6_route(net, skb, gw, oif)) { __this_cpu_write(nf_skb_duplicated, true); ip6_local_out(skb); __this_cpu_write(nf_skb_duplicated, false); diff --git a/net/ipv6/netfilter/nft_dup_ipv6.c b/net/ipv6/netfilter/nft_dup_ipv6.c index c81204f..8bfd470 100644 --- a/net/ipv6/netfilter/nft_dup_ipv6.c +++ b/net/ipv6/netfilter/nft_dup_ipv6.c @@ -28,7 +28,7 @@ static void nft_dup_ipv6_eval(const struct nft_expr *expr, struct in6_addr *gw = (struct in6_addr *)®s->data[priv->sreg_addr]; int oif = regs->data[priv->sreg_dev]; - nf_dup_ipv6(pkt->skb, pkt->hook, gw, oif); + nf_dup_ipv6(pkt->net, pkt->skb, pkt->hook, gw, oif); } static int nft_dup_ipv6_init(const struct nft_ctx *ctx, diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c index fd980aa..899b061 100644 --- a/net/netfilter/xt_TEE.c +++ b/net/netfilter/xt_TEE.c @@ -32,7 +32,7 @@ tee_tg4(struct sk_buff *skb, const struct xt_action_param *par) { const struct xt_tee_tginfo *info = par->targinfo; - nf_dup_ipv4(skb, par->hooknum, &info->gw.in, info->priv->oif); + nf_dup_ipv4(par->net, skb, par->hooknum, &info->gw.in, info->priv->oif); return XT_CONTINUE; } @@ -43,7 +43,7 @@ tee_tg6(struct sk_buff *skb, const struct xt_action_param *par) { const struct xt_tee_tginfo *info = par->targinfo; - nf_dup_ipv6(skb, par->hooknum, &info->gw.in6, info->priv->oif); + nf_dup_ipv6(par->net, skb, par->hooknum, &info->gw.in6, info->priv->oif); return XT_CONTINUE; } |