e3ad5aa68a
Also, made disconnect-instance and delete-instance functions available via cli. Type: feature Change-Id: I7939d27867959cb871b1cc7205b94410b53906fd Signed-off-by: Alexander Skorichenko <askorichenko@netgate.com>
130 lines
3.0 KiB
C
130 lines
3.0 KiB
C
/* SPDX-License-Identifier: Apache-2.0
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* Copyright(c) 2021 Cisco Systems, Inc.
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*/
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#ifndef __snort_snort_h__
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#define __snort_snort_h__
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#include <vppinfra/error.h>
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#include <vppinfra/socket.h>
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#include <vppinfra/file.h>
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#include <vlib/vlib.h>
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#include <snort/daq_vpp.h>
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typedef struct
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{
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CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
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u8 log2_queue_size;
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daq_vpp_desc_t *descriptors;
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volatile u32 *enq_head;
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volatile u32 *deq_head;
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volatile u32 *enq_ring;
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volatile u32 *deq_ring;
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u32 next_desc;
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int enq_fd, deq_fd;
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u32 deq_fd_file_index;
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u32 *buffer_indices;
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u16 *next_indices;
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u32 *freelist;
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u32 ready;
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/* temporary storeage used by enqueue node */
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u32 n_pending;
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u16 pending_nexts[VLIB_FRAME_SIZE];
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u32 pending_buffers[VLIB_FRAME_SIZE];
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daq_vpp_desc_t pending_descs[VLIB_FRAME_SIZE];
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} snort_qpair_t;
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typedef struct
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{
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u32 index;
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u32 client_index;
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void *shm_base;
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u32 shm_size;
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int shm_fd;
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snort_qpair_t *qpairs;
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u8 *name;
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u8 drop_on_disconnect;
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} snort_instance_t;
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typedef struct
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{
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daq_vpp_msg_t msg;
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int fds[2];
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int n_fds;
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} snort_client_msg_queue_elt;
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typedef struct
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{
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clib_socket_t socket;
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u32 instance_index;
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u32 file_index;
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snort_client_msg_queue_elt *msg_queue;
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} snort_client_t;
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typedef struct
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{
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/* per-instance dequeue interrupts */
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void *interrupts;
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} snort_per_thread_data_t;
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typedef struct
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{
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clib_socket_t *listener;
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snort_client_t *clients;
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snort_instance_t *instances;
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uword *instance_by_name;
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u32 *instance_by_sw_if_index;
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u8 **buffer_pool_base_addrs;
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snort_per_thread_data_t *per_thread_data;
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u32 input_mode;
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u8 *socket_name;
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/* API message ID base */
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u16 msg_id_base;
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} snort_main_t;
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extern clib_file_main_t file_main;
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extern snort_main_t snort_main;
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extern vlib_node_registration_t snort_enq_node;
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extern vlib_node_registration_t snort_deq_node;
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typedef enum
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{
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SNORT_ENQ_NEXT_DROP,
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SNORT_ENQ_N_NEXT_NODES,
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} snort_enq_next_t;
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typedef enum
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{
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SNORT_INPUT = 1,
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SNORT_OUTPUT = 2,
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SNORT_INOUT = 3
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} snort_attach_dir_t;
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#define SNORT_ENQ_NEXT_NODES \
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{ \
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[SNORT_ENQ_NEXT_DROP] = "error-drop", \
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}
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/* functions */
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snort_main_t *snort_get_main ();
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snort_instance_t *snort_get_instance_by_index (u32 instance_index);
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snort_instance_t *snort_get_instance_by_name (char *name);
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int snort_instance_create (vlib_main_t *vm, char *name, u8 log2_queue_sz,
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u8 drop_on_disconnect);
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int snort_interface_enable_disable (vlib_main_t *vm, char *instance_name,
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u32 sw_if_index, int is_enable,
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snort_attach_dir_t dir);
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int snort_set_node_mode (vlib_main_t *vm, u32 mode);
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int snort_instance_delete (vlib_main_t *vm, u32 instance_index);
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int snort_instance_disconnect (vlib_main_t *vm, u32 instance_index);
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always_inline void
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snort_freelist_init (u32 *fl)
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{
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for (int j = 0; j < vec_len (fl); j++)
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fl[j] = j;
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}
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#endif /* __snort_snort_h__ */
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