From f126e746fc01c75bc99329d10ce9127b26b23814 Mon Sep 17 00:00:00 2001 From: Klement Sekera Date: Thu, 10 Oct 2019 09:46:06 +0000 Subject: nat: use SVR Remove NAT's implementation of shallow virtual reassembly with corresponding CLIs, APIs & tests. Replace with standalone shallow virtual reassembly provided by ipX-sv-reass* nodes. Type: refactor Change-Id: I7e6c7487a5a500d591f6871474a359e0993e59b6 Signed-off-by: Klement Sekera --- src/vnet/buffer.h | 45 ++++++++++++++++++++++++++------------------- 1 file changed, 26 insertions(+), 19 deletions(-) (limited to 'src/vnet/buffer.h') diff --git a/src/vnet/buffer.h b/src/vnet/buffer.h index 59a8256b902..b174587efdd 100644 --- a/src/vnet/buffer.h +++ b/src/vnet/buffer.h @@ -185,9 +185,8 @@ typedef struct /* reassembly */ union { - /* group input/output/handoff to simplify the code, this way: - * we can handoff while keeping input variables intact - * and also we can write the output and still use next_index later */ + /* group input/output to simplify the code, this way + * we can handoff while keeping input variables intact */ struct { /* input variables */ @@ -201,23 +200,28 @@ typedef struct { u16 owner_thread_index; }; - /* output variables */ - struct + }; + /* output variables */ + struct + { + union { - union + /* shallow virtual reassembly output variables */ + struct { - /* shallow virtual reassembly output variables */ - struct - { - u8 ip_proto; /* protocol in ip header */ - u16 l4_src_port; /* tcp/udp/icmp src port */ - u16 l4_dst_port; /* tcp/udp/icmp dst port */ - }; - /* full reassembly output variables */ - struct - { - u16 estimated_mtu; /* estimated MTU calculated during reassembly */ - }; + u8 ip_proto; /* protocol in ip header */ + u8 icmp_type_or_tcp_flags; + u8 is_non_first_fragment; + u8 save_rewrite_length; + u16 l4_src_port; /* tcp/udp/icmp src port */ + u16 l4_dst_port; /* tcp/udp/icmp dst port */ + u32 tcp_ack_number; + u32 tcp_seq_number; + }; + /* full reassembly output variables */ + struct + { + u16 estimated_mtu; /* estimated MTU calculated during reassembly */ }; }; }; @@ -384,7 +388,10 @@ typedef struct STATIC_ASSERT (STRUCT_SIZE_OF (vnet_buffer_opaque_t, ip.save_rewrite_length) == STRUCT_SIZE_OF (vnet_buffer_opaque_t, - mpls.save_rewrite_length) + ip.reass.save_rewrite_length) + && STRUCT_SIZE_OF (vnet_buffer_opaque_t, + ip.reass.save_rewrite_length) == + STRUCT_SIZE_OF (vnet_buffer_opaque_t, mpls.save_rewrite_length) && STRUCT_SIZE_OF (vnet_buffer_opaque_t, mpls.save_rewrite_length) == 1 && VNET_REWRITE_TOTAL_BYTES < UINT8_MAX, -- cgit 1.2.3-korg