diff options
| -rw-r--r-- | include/linux/fib_rules.h | 2 | ||||
| -rw-r--r-- | include/net/flow.h | 2 | ||||
| -rw-r--r-- | net/ipv6/Kconfig | 7 | ||||
| -rw-r--r-- | net/ipv6/fib6_rules.c | 23 | ||||
| -rw-r--r-- | net/ipv6/route.c | 1 |
5 files changed, 34 insertions, 1 deletions
diff --git a/include/linux/fib_rules.h b/include/linux/fib_rules.h index 19a82b6c1c1f..2987549d6044 100644 --- a/include/linux/fib_rules.h +++ b/include/linux/fib_rules.h @@ -34,7 +34,7 @@ enum FRA_UNUSED3, FRA_UNUSED4, FRA_UNUSED5, - FRA_FWMARK, /* netfilter mark (IPv4) */ + FRA_FWMARK, /* netfilter mark (IPv4/IPv6) */ FRA_FLOW, /* flow/class id */ FRA_UNUSED6, FRA_UNUSED7, diff --git a/include/net/flow.h b/include/net/flow.h index e0522914316e..3ca210ec1379 100644 --- a/include/net/flow.h +++ b/include/net/flow.h @@ -26,6 +26,7 @@ struct flowi { struct { struct in6_addr daddr; struct in6_addr saddr; + __u32 fwmark; __u32 flowlabel; } ip6_u; @@ -42,6 +43,7 @@ struct flowi { #define fld_scope nl_u.dn_u.scope #define fl6_dst nl_u.ip6_u.daddr #define fl6_src nl_u.ip6_u.saddr +#define fl6_fwmark nl_u.ip6_u.fwmark #define fl6_flowlabel nl_u.ip6_u.flowlabel #define fl4_dst nl_u.ip4_u.daddr #define fl4_src nl_u.ip4_u.saddr diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig index 21e0cc808f44..a2d211da2aba 100644 --- a/net/ipv6/Kconfig +++ b/net/ipv6/Kconfig @@ -173,3 +173,10 @@ config IPV6_MULTIPLE_TABLES ---help--- Support multiple routing tables. +config IPV6_ROUTE_FWMARK + bool "IPv6: use netfilter MARK value as routing key" + depends on IPV6_MULTIPLE_TABLES && NETFILTER + ---help--- + If you say Y here, you will be able to specify different routes for + packets with different mark values (see iptables(8), MARK target). + diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index 91f6233d8efd..aebd9e2b85a8 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -26,6 +26,9 @@ struct fib6_rule struct fib_rule common; struct rt6key src; struct rt6key dst; +#ifdef CONFIG_IPV6_ROUTE_FWMARK + u8 fwmark; +#endif u8 tclass; }; @@ -124,6 +127,11 @@ static int fib6_rule_match(struct fib_rule *rule, struct flowi *fl, int flags) if (r->tclass && r->tclass != ((ntohl(fl->fl6_flowlabel) >> 20) & 0xff)) return 0; +#ifdef CONFIG_IPV6_ROUTE_FWMARK + if (r->fwmark && (r->fwmark != fl->fl6_fwmark)) + return 0; +#endif + return 1; } @@ -164,6 +172,11 @@ static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb, nla_memcpy(&rule6->dst.addr, tb[FRA_DST], sizeof(struct in6_addr)); +#ifdef CONFIG_IPV6_ROUTE_FWMARK + if (tb[FRA_FWMARK]) + rule6->fwmark = nla_get_u32(tb[FRA_FWMARK]); +#endif + rule6->src.plen = frh->src_len; rule6->dst.plen = frh->dst_len; rule6->tclass = frh->tos; @@ -195,6 +208,11 @@ static int fib6_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh, nla_memcmp(tb[FRA_DST], &rule6->dst.addr, sizeof(struct in6_addr))) return 0; +#ifdef CONFIG_IPV6_ROUTE_FWMARK + if (tb[FRA_FWMARK] && (rule6->fwmark != nla_get_u32(tb[FRA_FWMARK]))) + return 0; +#endif + return 1; } @@ -216,6 +234,11 @@ static int fib6_rule_fill(struct fib_rule *rule, struct sk_buff *skb, NLA_PUT(skb, FRA_SRC, sizeof(struct in6_addr), &rule6->src.addr); +#ifdef CONFIG_IPV6_ROUTE_FWMARK + if (rule6->fwmark) + NLA_PUT_U32(skb, FRA_FWMARK, rule6->fwmark); +#endif + return 0; nla_put_failure: diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 20691285aee5..649350bd9299 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -703,6 +703,7 @@ void ip6_route_input(struct sk_buff *skb) .ip6_u = { .daddr = iph->daddr, .saddr = iph->saddr, + .fwmark = skb->nfmark, .flowlabel = (* (u32 *) iph)&IPV6_FLOWINFO_MASK, }, }, |