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| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2020-02-11 20:47:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-04 09:39:58 +0100 |
| commit | 3efde1864ab5552d8c9411e0112f5508b4c7ec47 (patch) | |
| tree | d7a8ce4f4a3bf541ade11e4916d9f4a10285c304 /include | |
| parent | fc204c6b398378a70d79cbac24cd16cce412a0c7 (diff) | |
| download | linux-3efde1864ab5552d8c9411e0112f5508b4c7ec47.tar.gz linux-3efde1864ab5552d8c9411e0112f5508b4c7ec47.tar.bz2 linux-3efde1864ab5552d8c9411e0112f5508b4c7ec47.zip | |
icmp: introduce helper for nat'd source address in network device context
commit 0b41713b606694257b90d61ba7e2712d8457648b upstream.
This introduces a helper function to be called only by network drivers
that wraps calls to icmp[v6]_send in a conntrack transformation, in case
NAT has been used. We don't want to pollute the non-driver path, though,
so we introduce this as a helper to be called by places that actually
make use of this, as suggested by Florian.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/icmpv6.h | 6 | ||||
| -rw-r--r-- | include/net/icmp.h | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/icmpv6.h b/include/linux/icmpv6.h index a8f888976137..adb981ab7de9 100644 --- a/include/linux/icmpv6.h +++ b/include/linux/icmpv6.h @@ -31,6 +31,12 @@ static inline void icmpv6_send(struct sk_buff *skb, } #endif +#if IS_ENABLED(CONFIG_NF_NAT) +void icmpv6_ndo_send(struct sk_buff *skb_in, u8 type, u8 code, __u32 info); +#else +#define icmpv6_ndo_send icmpv6_send +#endif + extern int icmpv6_init(void); extern int icmpv6_err_convert(u8 type, u8 code, int *err); diff --git a/include/net/icmp.h b/include/net/icmp.h index 8665bf24e3b7..9c344e2655d2 100644 --- a/include/net/icmp.h +++ b/include/net/icmp.h @@ -47,6 +47,12 @@ static inline void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 __icmp_send(skb_in, type, code, info, &IPCB(skb_in)->opt); } +#if IS_ENABLED(CONFIG_NF_NAT) +void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info); +#else +#define icmp_ndo_send icmp_send +#endif + int icmp_rcv(struct sk_buff *skb); void icmp_err(struct sk_buff *skb, u32 info); int icmp_init(void); |