#include <vppinfra/hash.h>
#include <vppinfra/error.h>
+#include <vppinfra/bitmap.h>
#include <vppinfra/elog.h>
+#include <vppinfra/bihash_48_8.h>
+#include <vppinfra/bihash_40_8.h>
+
+#include "fa_node.h"
+#include "hash_lookup_types.h"
+#include "lookup_context.h"
#define ACL_PLUGIN_VERSION_MAJOR 1
-#define ACL_PLUGIN_VERSION_MINOR 1
+#define ACL_PLUGIN_VERSION_MINOR 3
+
+#define UDP_SESSION_IDLE_TIMEOUT_SEC 600
+#define TCP_SESSION_IDLE_TIMEOUT_SEC (3600*24)
+#define TCP_SESSION_TRANSIENT_TIMEOUT_SEC 120
+
+#define ACL_FA_DEFAULT_HEAP_SIZE (2 << 29)
+
+#define ACL_PLUGIN_HASH_LOOKUP_HEAP_SIZE (2 << 25)
+#define ACL_PLUGIN_HASH_LOOKUP_HASH_BUCKETS 65536
+#define ACL_PLUGIN_HASH_LOOKUP_HASH_MEMORY (2 << 25)
extern vlib_node_registration_t acl_in_node;
extern vlib_node_registration_t acl_out_node;
void input_acl_packet_match(u32 sw_if_index, vlib_buffer_t * b0, u32 *nextp, u32 *acl_match_p, u32 *rule_match_p, u32 *trace_bitmap);
void output_acl_packet_match(u32 sw_if_index, vlib_buffer_t * b0, u32 *nextp, u32 *acl_match_p, u32 *rule_match_p, u32 *trace_bitmap);
+enum acl_timeout_e {
+ ACL_TIMEOUT_UDP_IDLE = 0,
+ ACL_TIMEOUT_TCP_IDLE,
+ ACL_TIMEOUT_TCP_TRANSIENT,
+ ACL_N_TIMEOUTS
+};
+
+
enum address_e { IP4, IP6 };
typedef struct
{
u32 ip4_table_index;
u32 ip6_table_index;
u32 l2_table_index;
+ /* outacl classifier tables */
+ u32 out_ip4_table_index;
+ u32 out_ip6_table_index;
+ u32 out_l2_table_index;
} macip_acl_list_t;
+/*
+ * An element describing a particular configuration fo the mask,
+ * and how many times it has been used.
+ */
+typedef struct
+{
+ fa_5tuple_t mask;
+ u32 refcount;
+} ace_mask_type_entry_t;
+
typedef struct {
+ /* mheap to hold all the ACL module related allocations, other than hash */
+ void *acl_mheap;
+ u32 acl_mheap_size;
+
/* API message ID base */
u16 msg_id_base;
+ /* The pool of users of ACL lookup contexts */
+ acl_lookup_context_user_t *acl_users;
+ /* The pool of ACL lookup contexts */
+ acl_lookup_context_t *acl_lookup_contexts;
+
acl_list_t *acls; /* Pool of ACLs */
+ hash_acl_info_t *hash_acl_infos; /* corresponding hash matching housekeeping info */
+ clib_bihash_48_8_t acl_lookup_hash; /* ACL lookup hash table. */
+ u32 hash_lookup_hash_buckets;
+ u32 hash_lookup_hash_memory;
+
+ /* mheap to hold all the miscellaneous allocations related to hash-based lookups */
+ void *hash_lookup_mheap;
+ u32 hash_lookup_mheap_size;
+ int acl_lookup_hash_initialized;
+/*
+ applied_hash_ace_entry_t **input_hash_entry_vec_by_sw_if_index;
+ applied_hash_ace_entry_t **output_hash_entry_vec_by_sw_if_index;
+ applied_hash_acl_info_t *input_applied_hash_acl_info_by_sw_if_index;
+ applied_hash_acl_info_t *output_applied_hash_acl_info_by_sw_if_index;
+*/
+ applied_hash_ace_entry_t **hash_entry_vec_by_lc_index;
+ applied_hash_acl_info_t *applied_hash_acl_info_by_lc_index;
+
+ /* Corresponding lookup context indices for in/out lookups per sw_if_index */
+ u32 *input_lc_index_by_sw_if_index;
+ u32 *output_lc_index_by_sw_if_index;
+ /* context user id for interface ACLs */
+ u32 interface_acl_user_id;
+
macip_acl_list_t *macip_acls; /* Pool of MAC-IP ACLs */
/* ACLs associated with interfaces */
u32 **input_acl_vec_by_sw_if_index;
u32 **output_acl_vec_by_sw_if_index;
+ /* interfaces on which given ACLs are applied */
+ u32 **input_sw_if_index_vec_by_acl;
+ u32 **output_sw_if_index_vec_by_acl;
+
+ /* bitmaps 1=sw_if_index has in/out ACL processing enabled */
+ uword *in_acl_on_sw_if_index;
+ uword *out_acl_on_sw_if_index;
+
+ /* lookup contexts where a given ACL is used */
+ u32 **lc_index_vec_by_acl;
+
+ /* Total count of interface+direction pairs enabled */
+ u32 fa_total_enabled_count;
+
+ /* Do we use hash-based ACL matching or linear */
+ int use_hash_acl_matching;
+
+ /* a pool of all mask types present in all ACEs */
+ ace_mask_type_entry_t *ace_mask_type_pool;
+
/*
* Classify tables used to grab the packets for the ACL check,
* and serving as the 5-tuple session tables at the same time
u32 *acl_ip4_output_classify_table_by_sw_if_index;
u32 *acl_ip6_output_classify_table_by_sw_if_index;
+ u32 *acl_dot1q_input_classify_table_by_sw_if_index;
+ u32 *acl_dot1ad_input_classify_table_by_sw_if_index;
+ u32 *acl_dot1q_output_classify_table_by_sw_if_index;
+ u32 *acl_dot1ad_output_classify_table_by_sw_if_index;
+
+ u32 *acl_etype_input_classify_table_by_sw_if_index;
+ u32 *acl_etype_output_classify_table_by_sw_if_index;
+
+ u16 **input_etype_whitelist_by_sw_if_index;
+ u16 **output_etype_whitelist_by_sw_if_index;
+
/* MACIP (input) ACLs associated with the interfaces */
u32 *macip_acl_by_sw_if_index;
- /* next indices for our nodes in the l2-classify tables */
- u32 l2_input_classify_next_acl;
- u32 l2_output_classify_next_acl;
+ /* bitmaps when set the processing is enabled on the interface */
+ uword *fa_in_acl_on_sw_if_index;
+ uword *fa_out_acl_on_sw_if_index;
+ /* bihash holding all of the sessions */
+ int fa_sessions_hash_is_initialized;
+ clib_bihash_40_8_t fa_sessions_hash;
+ /* The process node which orcherstrates the cleanup */
+ u32 fa_cleaner_node_index;
+ /* FA session timeouts, in seconds */
+ u32 session_timeout_sec[ACL_N_TIMEOUTS];
+ /* total session adds/dels */
+ u64 fa_session_total_adds;
+ u64 fa_session_total_dels;
+
+ /* L2 datapath glue */
+
+ /* next indices within L2 classifiers for ip4/ip6 fa L2 nodes */
+ u32 l2_input_classify_next_acl_ip4;
+ u32 l2_input_classify_next_acl_ip6;
+ u32 l2_output_classify_next_acl_ip4;
+ u32 l2_output_classify_next_acl_ip6;
+ /* next node indices for L2 dispatch */
+ u32 fa_acl_in_ip4_l2_node_feat_next_node_index[32];
+ u32 fa_acl_in_ip6_l2_node_feat_next_node_index[32];
+ u32 fa_acl_out_ip4_l2_node_feat_next_node_index[32];
+ u32 fa_acl_out_ip6_l2_node_feat_next_node_index[32];
- /* next node indices for feature bitmap */
- u32 acl_in_node_input_next_node_index[32];
- /* the respective thing for the output feature */
- l2_output_next_nodes_st acl_out_output_next_nodes;
+ /* EH values that we can skip over */
+ uword *fa_ipv6_known_eh_bitmap;
- /* ACL match actions (must be coherent across in/out ACLs to next indices (can differ) */
+ /* whether to match L4 ACEs with ports on the non-initial fragment */
+ int l4_match_nonfirst_fragment;
- u32 acl_in_ip4_match_next[256];
- u32 acl_in_ip6_match_next[256];
- u32 acl_out_ip4_match_next[256];
- u32 acl_out_ip6_match_next[256];
- u32 n_match_actions;
+ /* conn table per-interface conn table parameters */
+ u32 fa_conn_table_hash_num_buckets;
+ uword fa_conn_table_hash_memory_size;
+ u64 fa_conn_table_max_entries;
+ int trace_sessions;
+ int trace_acl;
+
+ /*
+ * If the cleaner has to delete more than this number
+ * of connections, it halves the sleep time.
+ */
+
+#define ACL_FA_DEFAULT_MAX_DELETED_SESSIONS_PER_INTERVAL 100
+ u64 fa_max_deleted_sessions_per_interval;
+
+ /*
+ * If the cleaner deletes less than these connections,
+ * it increases the wait time by the "increment"
+ */
+
+#define ACL_FA_DEFAULT_MIN_DELETED_SESSIONS_PER_INTERVAL 1
+ u64 fa_min_deleted_sessions_per_interval;
+
+#define ACL_FA_DEFAULT_CLEANER_WAIT_TIME_INCREMENT 0.1
+ f64 fa_cleaner_wait_time_increment;
+
+ u64 fa_current_cleaner_timer_wait_interval;
+
+ int fa_interrupt_generation;
+
+ /* per-worker data related t conn management */
+ acl_fa_per_worker_data_t *per_worker_data;
+
+ /* Configured session timeout */
+ u64 session_timeout[ACL_N_TIMEOUTS];
+
+
+ /* Counters for the cleaner thread */
+
+#define foreach_fa_cleaner_counter \
+ _(fa_cleaner_cnt_delete_by_sw_index, "delete_by_sw_index events") \
+ _(fa_cleaner_cnt_delete_by_sw_index_ok, "delete_by_sw_index handled ok") \
+ _(fa_cleaner_cnt_unknown_event, "unknown events received") \
+ _(fa_cleaner_cnt_timer_restarted, "session idle timers restarted") \
+ _(fa_cleaner_cnt_wait_with_timeout, "event wait with timeout called") \
+ _(fa_cleaner_cnt_wait_without_timeout, "event wait w/o timeout called") \
+ _(fa_cleaner_cnt_event_cycles, "total event cycles") \
+/* end of counters */
+#define _(id, desc) u32 id;
+ foreach_fa_cleaner_counter
+#undef _
/* convenience */
vlib_main_t * vlib_main;
vnet_main_t * vnet_main;
} acl_main_t;
+#define foreach_acl_eh \
+ _(HOPBYHOP , 0 , "IPv6ExtHdrHopByHop") \
+ _(ROUTING , 43 , "IPv6ExtHdrRouting") \
+ _(DESTOPT , 60 , "IPv6ExtHdrDestOpt") \
+ _(FRAGMENT , 44 , "IPv6ExtHdrFragment") \
+ _(MOBILITY , 135, "Mobility Header") \
+ _(HIP , 139, "Experimental use Host Identity Protocol") \
+ _(SHIM6 , 140, "Shim6 Protocol") \
+ _(EXP1 , 253, "Use for experimentation and testing") \
+ _(EXP2 , 254, "Use for experimentation and testing")
+
+/*
+
+ "No Next Header" is not a header.
+ Also, Fragment header needs special processing.
+
+ _(NONEXT , 59 , "NoNextHdr") \
+
+
+ESP is hiding its internal format, so no point in trying to go past it.
+
+ _(ESP , 50 , "EncapsulatingSecurityPayload") \
+
+
+AH has a special treatment of its length, it is in 32-bit words, not 64-bit words like the rest.
+
+ _(AUTH , 51 , "Authentication Header") \
+
+
+*/
+
+
+ typedef enum {
+ #define _(N, v, s) ACL_EH_##N = v,
+ foreach_acl_eh
+ #undef _
+ } acl_eh_t;
+
+
+
extern acl_main_t acl_main;
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