diff options
| author |   Matus Fabian <matfabia@cisco.com> | 2018-09-05 06:01:55 -0700 |
|---|---|---|
| committer |   Ole Trøan <otroan@employees.org> | 2018-09-06 07:32:30 +0000 |
| commit | a7f8b228ff505acc052a77101b12e714ead26536 (patch) | |
| tree | 44f42ff50c300bfd3c5517de7a4de8e537541c42 /src/plugins/nat/nat_reass.h | |
| parent | 05ca4a364366ffd639b6136967330deb249cbe22 (diff) | |
NAT: fix maximum out of order fragments (VPP-1399)
All fragments should be dropped when max_frag is 1 and 2 non-initial fragments are received before first fragment.
Change-Id: Id0c968f45629698e347e8226c5926f27b48b82d6
Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat_reass.h')
| -rw-r--r-- | src/plugins/nat/nat_reass.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/plugins/nat/nat_reass.h b/src/plugins/nat/nat_reass.h index 4a9137e3255..5b18d1bd7b9 100644 --- a/src/plugins/nat/nat_reass.h +++ b/src/plugins/nat/nat_reass.h @@ -30,6 +30,8 @@ #define NAT_MAX_FRAG_DEFAULT 5 #define NAT_REASS_HT_LOAD_FACTOR (0.75) +#define NAT_REASS_FLAG_MAX_FRAG_DROP 1 + typedef struct { union @@ -57,6 +59,7 @@ typedef CLIB_PACKED(struct f64 last_heard; u32 frags_per_reass_list_head_index; u8 frag_n; + u8 flags; }) nat_reass_ip4_t; /* *INDENT-ON* */ @@ -86,6 +89,7 @@ typedef CLIB_PACKED(struct f64 last_heard; u32 frags_per_reass_list_head_index; u8 frag_n; + u8 flags; }) nat_reass_ip6_t; /* *INDENT-ON* */ @@ -222,10 +226,12 @@ nat_reass_ip4_t *nat_ip4_reass_find_or_create (ip4_address_t src, * * @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 (nat_reass_ip4_t * reass, u32 bi); +int nat_ip4_reass_add_fragment (nat_reass_ip4_t * reass, u32 bi, + u32 ** bi_to_drop); /** * @brief Get cached fragments. @@ -271,10 +277,12 @@ nat_reass_ip6_t *nat_ip6_reass_find_or_create (ip6_address_t src, * * @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 (nat_reass_ip6_t * reass, u32 bi); +int nat_ip6_reass_add_fragment (nat_reass_ip6_t * reass, u32 bi, + u32 ** bi_to_drop); /** * @brief Get cached fragments. |