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libipsec: remove extra RFC4303 TFC padding appended to inner payload

This commit is contained in:
Martin Willi 2013-09-23 16:23:54 +02:00
parent d53f9b9637
commit 293515f95c
1 changed files with 6 additions and 0 deletions
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6
src/libipsec/ip_packet.c
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@ -139,6 +139,9 @@ ip_packet_t *ip_packet_create(chunk_t packet)
goto failed;
}
ip = (struct ip*)packet.ptr;
/* remove any RFC 4303 TFC extra padding */
packet.len = min(packet.len, untoh16(&ip->ip_len));
src = host_create_from_chunk(AF_INET,
chunk_from_thing(ip->ip_src), 0);
dst = host_create_from_chunk(AF_INET,
@ -157,6 +160,9 @@ ip_packet_t *ip_packet_create(chunk_t packet)
goto failed;
}
ip = (struct ip6_hdr*)packet.ptr;
/* remove any RFC 4303 TFC extra padding */
packet.len = min(packet.len, untoh16(&ip->ip6_plen));
src = host_create_from_chunk(AF_INET6,
chunk_from_thing(ip->ip6_src), 0);
dst = host_create_from_chunk(AF_INET6,