diff options
| author |   Dave Barach <dave@barachs.net> | 2019-10-11 11:31:43 -0400 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2019-10-11 15:45:39 +0000 |
| commit | 47a2a705d0f33c0da0be1e4c0cb59b2286c3306f (patch) | |
| tree | 4344e7750ca6659a4166a373abad9742e503fe29 | |
| parent | 23afd57095dd279255de4679b0533d3d588f0e74 (diff) | |
lisp: fix dangling references to bihash tables
gid_ip4_table_t's and gid_ip6_table_t's are allocated from pools. They
MUST NOT be listed on the clib_all_bihash list to avoid dangling
references.
Switch to the clib_bihash_init2 API, which has the required knob.
Type: fix
Ticket: VPP-1788
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I49a17e937922c3af2e1c46b24e20883af51584a8
| -rw-r--r-- | src/vnet/lisp-cp/gid_dictionary.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/src/vnet/lisp-cp/gid_dictionary.c b/src/vnet/lisp-cp/gid_dictionary.c index 2d8fbc80404..b2060a62c8e 100644 --- a/src/vnet/lisp-cp/gid_dictionary.c +++ b/src/vnet/lisp-cp/gid_dictionary.c @@ -555,6 +555,7 @@ add_del_ip4_key (gid_ip4_table_t * db, u32 vni, ip_prefix_t * pref, u32 val, static void ip4_lookup_init (gid_ip4_table_t * db) { + BVT (clib_bihash_init2_args) _a, *a = &_a; uword i; clib_memset (db->ip4_prefix_len_refcount, 0, @@ -579,9 +580,18 @@ ip4_lookup_init (gid_ip4_table_t * db) if (db->ip4_lookup_table_size == 0) db->ip4_lookup_table_size = IP4_LOOKUP_DEFAULT_HASH_MEMORY_SIZE; - BV (clib_bihash_init) (&db->ip4_lookup_table, "ip4 lookup table", - db->ip4_lookup_table_nbuckets, - db->ip4_lookup_table_size); + /* + * Danger Will Robinson, Danger! gid_ip4_table_t's are allocated from + * a pool. They MUST NOT be listed on the clib_all_bihashes list... + */ + memset (a, 0, sizeof (*a)); + a->h = &db->ip4_lookup_table; + a->name = "LISP ip4 lookup table"; + a->nbuckets = db->ip4_lookup_table_nbuckets; + a->memory_size = db->ip4_lookup_table_size; + a->dont_add_to_all_bihash_list = 1; /* See comment above */ + + BV (clib_bihash_init2) (a); } static u32 @@ -754,6 +764,7 @@ static void ip6_lookup_init (gid_ip6_table_t * db) { uword i; + BVT (clib_bihash_init2_args) _a, *a = &_a; clib_memset (db->ip6_prefix_len_refcount, 0, sizeof (db->ip6_prefix_len_refcount)); @@ -782,9 +793,18 @@ ip6_lookup_init (gid_ip6_table_t * db) if (db->ip6_lookup_table_size == 0) db->ip6_lookup_table_size = IP6_LOOKUP_DEFAULT_HASH_MEMORY_SIZE; - BV (clib_bihash_init) (&db->ip6_lookup_table, "ip6 lookup table", - db->ip6_lookup_table_nbuckets, - db->ip6_lookup_table_size); + /* + * Danger Will Robinson, Danger! gid_ip6_table_t's are allocated from + * a pool. They MUST NOT be listed on the clib_all_bihashes list... + */ + memset (a, 0, sizeof (*a)); + a->h = &db->ip6_lookup_table; + a->name = "LISP ip6 lookup table"; + a->nbuckets = db->ip6_lookup_table_nbuckets; + a->memory_size = db->ip6_lookup_table_size; + a->dont_add_to_all_bihash_list = 1; /* See comment above */ + + BV (clib_bihash_init2) (a); } static u32 |