diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-10-25 18:24:57 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-10-31 12:49:05 +0100 |
| commit | 052b9498eea532deb5de75277a53f6e0623215dc (patch) | |
| tree | f66e2e445c077efede2901d6888646851aa4a13f /include/net/netfilter | |
| parent | 4d87716cd057bde3f90e304289c1fec88d45a1cc (diff) | |
netfilter: nf_reject_ipv4: split nf_send_reset() in smaller functions
That can be reused by the reject bridge expression to build the reject
packet. The new functions are:
* nf_reject_ip_tcphdr_get(): to sanitize and to obtain the TCP header.
* nf_reject_iphdr_put(): to build the IPv4 header.
* nf_reject_ip_tcphdr_put(): to build the TCP header.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/netfilter')
| -rw-r--r-- | include/net/netfilter/ipv4/nf_reject.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/netfilter/ipv4/nf_reject.h b/include/net/netfilter/ipv4/nf_reject.h index e8427193c777..03e928a55229 100644 --- a/include/net/netfilter/ipv4/nf_reject.h +++ b/include/net/netfilter/ipv4/nf_reject.h @@ -1,6 +1,8 @@ #ifndef _IPV4_NF_REJECT_H #define _IPV4_NF_REJECT_H +#include <linux/skbuff.h> +#include <net/ip.h> #include <net/icmp.h> static inline void nf_send_unreach(struct sk_buff *skb_in, int code) @@ -10,4 +12,12 @@ static inline void nf_send_unreach(struct sk_buff *skb_in, int code) void nf_send_reset(struct sk_buff *oldskb, int hook); +const struct tcphdr *nf_reject_ip_tcphdr_get(struct sk_buff *oldskb, + struct tcphdr *_oth, int hook); +struct iphdr *nf_reject_iphdr_put(struct sk_buff *nskb, + const struct sk_buff *oldskb, + __be16 protocol, int ttl); +void nf_reject_ip_tcphdr_put(struct sk_buff *nskb, const struct sk_buff *oldskb, + const struct tcphdr *oth); + #endif /* _IPV4_NF_REJECT_H */ |