aboutsummaryrefslogtreecommitdiffstats
path: root/hicn-light/src/hicn/core/listener.h
blob: ea2a5d3d812e9d67757c68b7f7a967fdd0560457 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
/*
 * Copyright (c) 2017-2020 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 listener.h
 * @brief hICN listeners
 */

#ifndef HICNLIGHT_LISTENER_H
#define HICNLIGHT_LISTENER_H

#include <hicn/core/address_pair.h>
#include <hicn/face.h>
#include <hicn/base/loop.h>

struct forwarder_s;
struct batch_buffer_s;

typedef struct {
  address_t address;
  face_type_t type;
} listener_key_t;

/* This structure holds what is in common to all listeners */
typedef struct {
    int id;
    char * name;
    union {
        listener_key_t key;
        struct {
            address_t address;
            face_type_t type;
        };
    };

    char * interface_name;
    unsigned interface_index;
    unsigned family;
    int fd;
    event_t *event_data;
    void * data; /* Listener specific data */
    struct forwarder_s * forwarder;
} listener_t;

#define listener_get_id(L) ((L)->id)
#define listener_get_name(L) ((L)->name)
#define listener_get_key(L) (&(L)->key)
#define listener_get_type(L) ((L)->type)
#define listener_get_interface_name(L) ((L)->interface_name)
#define listener_get_interface_index(L) ((L)->interface_index)
#define listener_get_address(L) (&(L)->address)

#define listener_has_valid_type(L) \
    (face_type_is_valid((L)->type))

listener_t * listener_create(face_type_t type, const address_t * address,
        const char * interface_name, const char * symbolic, struct forwarder_s * forwarder);

int listener_initialize(listener_t * listener, face_type_t type, const char * name,
        unsigned listener_id, const address_t * address,
        const char * interface_name, struct forwarder_s * forwarder);

int listener_finalize(listener_t * listener);

int listener_punt(const listener_t * listener, const char * prefix_s);

int listener_get_socket(const listener_t * listener, const address_t * local,
        const address_t * remote, const char * interface_name);

unsigned listener_create_connection(const listener_t * listener,
        const address_pair_t * pair);

void listener_setup_all(const struct forwarder_s * forwarder, uint16_t port, const char *localPath);

void listener_setup_local_ipv4(const struct forwarder_s * forwarder,  uint16_t port);

void listener_process_packet(const listener_t * listener,
        const uint8_t * packet, size_t size);

ssize_t listener_read_callback(struct forwarder_s * forwarder, listener_t * listener,
        int fd, address_t * local_addr, uint8_t * packet, size_t size);

void listener_batch_read_callback(struct forwarder_s * forwarder,
        listener_t * listener, int fd, address_t * local_addr,
        struct batch_buffer_s * bb);

#endif /* HICNLIGHT_LISTENER_H */