Tests: Refactor duplicated code. - vpp - Vector Packet Processing

diff options

author	Paul Vinciguerra <pvinci@vinciconsulting.com>	2019-02-28 15:34:00 -0800
committer	Neale Ranns <nranns@cisco.com>	2019-03-01 09:25:08 +0000
commit	e8fece85e2b6190a1ebdc05c10cd79e43f385918 (patch)
tree	0f79255b4d45811521f295c7b47b1e75bbe2255d /test/test_mtu.py
parent	9e52ef6024a5f130ed542810a8b0ddb2b5fb08b7 (diff)

Tests: Refactor duplicated code.

Naveen suggested earlier today that we should refactor duplicate code. This commit kicks off the effort. Change-Id: I855b0f40d41d1f3a2e673f3b254b76b596409656 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>

Diffstat (limited to 'test/test_mtu.py')

0 files changed, 0 insertions, 0 deletions

/* * Copyright (c) 2017 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * @file * @brief NAT plugin virtual fragmentation reassembly */ #ifndef __included_nat_reass_h__ #define __included_nat_reass_h__ #include <vnet/vnet.h> #include <vnet/ip/ip.h> #include <vppinfra/bihash_16_8.h> #include <vppinfra/bihash_48_8.h> #include <vppinfra/dlist.h> #define NAT_REASS_TIMEOUT_DEFAULT 2 #define NAT_MAX_REASS_DEAFULT 1024 #define NAT_MAX_FRAG_DEFAULT 5 #define NAT_REASS_HT_LOAD_FACTOR (0.75) #define NAT_REASS_FLAG_MAX_FRAG_DROP 1 #define NAT_REASS_FLAG_CLASSIFY_ED_CONTINUE 2 #define NAT_REASS_FLAG_ED_DONT_TRANSLATE 4 typedef struct { union { struct { ip4_address_t src; ip4_address_t dst; /* align by making this 4 octets even though its a 2 octets field */ u32 frag_id; /* align by making this 4 octets even though its a 1 octet field */ u32 proto; }; u64 as_u64[2]; }; } nat_reass_ip4_key_t; enum { NAT_REASS_IP4_CLASSIFY_NONE, NAT_REASS_IP4_CLASSIFY_NEXT_IN2OUT, NAT_REASS_IP4_CLASSIFY_NEXT_OUT2IN }; /* *INDENT-OFF* */ typedef CLIB_PACKED(struct { nat_reass_ip4_key_t key; u32 lru_list_index; u32 sess_index; u32 thread_index; f64 last_heard; u32 frags_per_reass_list_head_index; u8 frag_n; u8 flags; u8 classify_next; }) nat_reass_ip4_t; /* *INDENT-ON* */ typedef struct { union { struct { ip6_address_t src; ip6_address_t dst; u32 frag_id; /* align by making this 4 octets even though its a 1 octet field */ u32 proto; u64 unused; }; u64 as_u64[6]; }; } nat_reass_ip6_key_t; /* *INDENT-OFF* */ typedef CLIB_PACKED(struct { nat_reass_ip6_key_t key; u32 lru_list_index; u32 sess_index; f64 last_heard; u32 frags_per_reass_list_head_index; u8 frag_n; u8 flags; }) nat_reass_ip6_t; /* *INDENT-ON* */ typedef struct { /* IPv4 config */ u32 ip4_timeout; u16 ip4_max_reass; u8 ip4_max_frag; u8 ip4_drop_frag; /* IPv6 config */ u32 ip6_timeout; u16 ip6_max_reass; u8 ip6_max_frag; u8 ip6_drop_frag; /* IPv4 runtime */ nat_reass_ip4_t *ip4_reass_pool; clib_bihash_16_8_t ip4_reass_hash; dlist_elt_t *ip4_reass_lru_list_pool; dlist_elt_t *ip4_frags_list_pool; u32 ip4_reass_head_index; u16 ip4_reass_n; clib_spinlock_t ip4_reass_lock; /* IPv6 runtime */ nat_reass_ip6_t *ip6_reass_pool; clib_bihash_48_8_t ip6_reass_hash; dlist_elt_t *ip6_reass_lru_list_pool; dlist_elt_t *ip6_frags_list_pool; u32 ip6_reass_head_index; u16 ip6_reass_n; clib_spinlock_t ip6_reass_lock; /* convenience */ vlib_main_t *vlib_main; vnet_main_t *vnet_main; } nat_reass_main_t; /** * @brief Set NAT virtual fragmentation reassembly configuration. * * @param timeout Reassembly timeout. * @param max_reass Maximum number of concurrent reassemblies. * @param max_frag Maximum number of fragmets per reassembly * @param drop_frag If zero translate fragments, otherwise drop fragments. * @param is_ip6 1 if IPv6, 0 if IPv4. * * @returns 0 on success, non-zero value otherwise. */ int nat_reass_set (u32 timeout, u16 max_reass, u8 max_frag, u8 drop_frag, u8 is_ip6); /** * @brief Get reassembly timeout. * * @param is_ip6 1 if IPv6, 0 if IPv4. * * @returns reassembly timeout. */ u32 nat_reass_get_timeout (u8 is_ip6); /** * @brief Get maximum number of concurrent reassemblies. * * @param is_ip6 1 if IPv6, 0 if IPv4. * * @returns maximum number of concurrent reassemblies. */ u16 nat_reass_get_max_reass (u8 is_ip6); /** * @brief Get maximum number of fragmets per reassembly. * * @param is_ip6 1 if IPv6, 0 if IPv4. * * @returns maximum number of fragmets per reassembly. */ u8 nat_reass_get_max_frag (u8 is_ip6); /** * @brief Get status of virtual fragmentation reassembly. * * @param is_ip6 1 if IPv6, 0 if IPv4. * * @returns zero if translate fragments, non-zero value if drop fragments. */ u8 nat_reass_is_drop_frag (u8 is_ip6); /** * @brief Initialize NAT virtual fragmentation reassembly. * * @param vm vlib main. * * @return error code. */ clib_error_t *nat_reass_init (vlib_main_t * vm); /** * @brief Find reassembly. * * @param src Source IPv4 address. * @param dst Destination IPv4 address. * @param frag_id Fragment ID. * @param proto L4 protocol. * * @returns Reassembly data or 0 if not found. */ nat_reass_ip4_t *nat_ip4_reass_find (ip4_address_t src, ip4_address_t dst, u16 frag_id, u8 proto); /** * @brief Create reassembly. * * @param src Source IPv4 address. * @param dst Destination IPv4 address. * @param frag_id Fragment ID. * @param proto L4 protocol. * * @returns Reassembly data or 0 on failure. */ nat_reass_ip4_t *nat_ip4_reass_create (ip4_address_t src, ip4_address_t dst, u16 frag_id, u8 proto); /** * @brief Find or create reassembly. * * @param src Source IPv4 address. * @param dst Destination IPv4 address. * @param frag_id Fragment ID. * @param proto L4 protocol. * @param reset_timeout If non-zero value reset timeout. * @param bi_to_drop Fragments to drop. * * @returns Reassembly data or 0 on failure. */ nat_reass_ip4_t *nat_ip4_reass_find_or_create (ip4_address_t src, ip4_address_t dst, u16 frag_id, u8 proto, u8 reset_timeout, u32 ** bi_to_drop); /** * @brief Cache fragment. * * @param reass Reassembly data. * @param bi Buffer index. * @param bi_to_drop Fragments to drop. * * @returns 0 on success, non-zero value otherwise. */ int nat_ip4_reass_add_fragment (u32 thread_index, nat_reass_ip4_t * reass, u32 bi, u32 ** bi_to_drop); /** * @brief Get cached fragments. * * @param reass Reassembly data. * @param bi Vector of buffer indexes. */ void nat_ip4_reass_get_frags (nat_reass_ip4_t * reass, u32 ** bi); /** * @breif Call back function when walking IPv4 reassemblies, non-zero return * value stop walk. */ typedef int (*nat_ip4_reass_walk_fn_t) (nat_reass_ip4_t * reass, void *ctx); /** * @brief Walk IPv4 reassemblies. * * @param fn The function to invoke on each entry visited. * @param ctx A context passed in the visit function. */ void nat_ip4_reass_walk (nat_ip4_reass_walk_fn_t fn, void *ctx); /** * @brief Find or create reassembly. * * @param src Source IPv6 address. * @param dst Destination IPv6 address. * @param frag_id Fragment ID. * @param proto L4 protocol. * @param reset_timeout If non-zero value reset timeout. * @param bi_to_drop Fragments to drop. * * @returns Reassembly data or 0 on failure. */ nat_reass_ip6_t *nat_ip6_reass_find_or_create (ip6_address_t src, ip6_address_t dst, u32 frag_id, u8 proto, u8 reset_timeout, u32 ** bi_to_drop); /** * @brief Cache fragment. * * @param reass Reassembly data. * @param bi Buffer index. * @param bi_to_drop Fragments to drop. * * @returns 0 on success, non-zero value otherwise. */ int nat_ip6_reass_add_fragment (u32 thread_index, nat_reass_ip6_t * reass, u32 bi, u32 ** bi_to_drop); /** * @brief Get cached fragments. * * @param reass Reassembly data. * @param bi Vector of buffer indexes. */ void nat_ip6_reass_get_frags (nat_reass_ip6_t * reass, u32 ** bi); /** * @breif Call back function when walking IPv6 reassemblies, non-zero return * value stop walk. */ typedef int (*nat_ip6_reass_walk_fn_t) (nat_reass_ip6_t * reass, void *ctx); /** * @brief Walk IPv6 reassemblies. * * @param fn The function to invoke on each entry visited. * @param ctx A context passed in the visit function. */ void nat_ip6_reass_walk (nat_ip6_reass_walk_fn_t fn, void *ctx); #endif /* __included_nat_reass_h__ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


context:
space:
mode: