[conntrack-tools] network: fix endianess issue in acknowledgment network header

[Pablo Neira]

Gitweb:		http://git.netfilter.org/cgi-bin/gitweb.cgi?p=conntrack-tools.git;a=commit;h=1c8002a2de8cfc2ff9d624099d5154bcd77e2f37
commit 1c8002a2de8cfc2ff9d624099d5154bcd77e2f37
Author:     Pablo Neira Ayuso <pablo at netfilter.org>
AuthorDate: Fri Feb 20 20:06:22 2009 +0100
Commit:     Pablo Neira Ayuso <pablo at netfilter.org>
CommitDate: Fri Feb 20 20:06:22 2009 +0100

    network: fix endianess issue in acknowledgment network header
    
    This patch fixes an endianess issue in the acknowledgment network
    header. This breaks backward compatibility if different conntrackd
    versions are used.
    
    Signed-off-by: Pablo Neira Ayuso <pablo at netfilter.org>
       via  1c8002a2de8cfc2ff9d624099d5154bcd77e2f37 (commit)
      from  e31823d42a9591021bf5bbe818b530133eb437da (commit)

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- Log -----------------------------------------------------------------
commit 1c8002a2de8cfc2ff9d624099d5154bcd77e2f37
Author: Pablo Neira Ayuso <pablo at netfilter.org>
Date:   Fri Feb 20 20:06:22 2009 +0100

    network: fix endianess issue in acknowledgment network header
    
    This patch fixes an endianess issue in the acknowledgment network
    header. This breaks backward compatibility if different conntrackd
    versions are used.
    
    Signed-off-by: Pablo Neira Ayuso <pablo at netfilter.org>

-----------------------------------------------------------------------

 include/network.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
This patch fixes an endianess issue in the acknowledgment network
header. This breaks backward compatibility if different conntrackd
versions are used.

Signed-off-by: Pablo Neira Ayuso <pablo at netfilter.org>

diff --git a/include/network.h b/include/network.h
index 3cf2cad..29a6113 100644
--- a/include/network.h
+++ b/include/network.h
@@ -45,8 +45,15 @@ int object_status_to_network_type(int status);
 	(struct netattr *)(((char *)x) + x->len)
 
 struct nethdr_ack {
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	uint8_t type:4,
+		version:4;
+#elif __BYTE_ORDER == __BIG_ENDIAN
 	uint8_t version:4,
 		type:4;
+#else
+#error  "Unknown system endianess!"
+#endif
 	uint8_t flags; 
 	uint16_t len;
 	uint32_t seq;