tun2socks 0.1.10

High performance tun2socks
Documentation 
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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160

/*
 ============================================================================
 Name        : hev-task-cio-fd.c
 Author      : hev <r@hev.cc>
 Copyright   : Copyright (c) 2024 hev.
 Description : Task Chain I/O Fd
 ============================================================================
 */

#include <errno.h>
#include <string.h>
#include <unistd.h>

#include "kern/task/hev-task.h"
#include "lib/io/basic/hev-task-io.h"
#include "lib/misc/hev-compiler.h"
#include "mem/api/hev-memory-allocator-api.h"

#include "hev-task-cio-fd.h"

EXPORT_SYMBOL HevTaskCIOFd *
hev_task_cio_fd_new (int fdi, int fdo)
{
    HevTaskCIOFd *self;
    int res;

    self = hev_malloc0 (sizeof (HevTaskCIOFd));
    if (!self)
        return NULL;

    res = hev_task_cio_fd_construct (self, fdi, fdo);
    if (res < 0) {
        hev_free (self);
        return NULL;
    }

    return self;
}

static ssize_t
_hev_task_cio_fd_read (HevTaskCIO *base, void *buf, size_t count)
{
    HevTaskCIOFd *self = HEV_TASK_CIO_FD (base);
    ssize_t res;

    res = read (self->fdi, buf, count);
    base->err = errno;

    return res;
}

static ssize_t
_hev_task_cio_fd_write (HevTaskCIO *base, const void *buf, size_t count)
{
    HevTaskCIOFd *self = HEV_TASK_CIO_FD (base);
    ssize_t res;

    res = write (self->fdo, buf, count);
    base->err = errno;

    return res;
}

static ssize_t
_hev_task_cio_fd_readv (HevTaskCIO *base, const struct iovec *iov, int iovcnt)
{
    HevTaskCIOFd *self = HEV_TASK_CIO_FD (base);
    ssize_t res;

    res = readv (self->fdi, iov, iovcnt);
    base->err = errno;

    return res;
}

static ssize_t
_hev_task_cio_fd_writev (HevTaskCIO *base, const struct iovec *iov, int iovcnt)
{
    HevTaskCIOFd *self = HEV_TASK_CIO_FD (base);
    ssize_t res;

    res = writev (self->fdo, iov, iovcnt);
    base->err = errno;

    return res;
}

static long
_hev_task_cio_fd_ctrl (HevTaskCIO *base, int ctrl, long larg, void *parg)
{
    HevTaskCIOFd *self = HEV_TASK_CIO_FD (base);

    switch (ctrl) {
    case HEV_TASK_CIO_CTRL_FLUSH:
        return 0;
    case HEV_TASK_CIO_CTRL_GET_FD:
        if (larg)
            return self->fdo;
        return self->fdi;
    }

    return -1;
}

EXPORT_SYMBOL int
hev_task_cio_fd_construct (HevTaskCIOFd *self, int fdi, int fdo)
{
    int res;

    res = hev_task_cio_construct (&self->base);
    if (res < 0)
        return res;

    HEV_OBJECT (self)->klass = HEV_TASK_CIO_FD_TYPE;

    self->fdi = fdi;
    self->fdo = fdo;

    return 0;
}

static void
_hev_task_cio_fd_destruct (HevObject *base)
{
    HevTaskCIOFd *self = HEV_TASK_CIO_FD (base);

    if (self->fdi >= 0)
        close (self->fdi);
    if (self->fdo >= 0)
        close (self->fdo);

    HEV_TASK_CIO_TYPE->destruct (base);
    hev_free (base);
}

EXPORT_SYMBOL HevObjectClass *
hev_task_cio_fd_class (void)
{
    static HevTaskCIOFdClass klass;
    HevTaskCIOFdClass *kptr = &klass;
    HevObjectClass *okptr = HEV_OBJECT_CLASS (kptr);
    HevTaskCIOClass *ckptr;

    if (okptr->name)
        return okptr;

    memcpy (kptr, HEV_TASK_CIO_TYPE, sizeof (HevTaskCIOClass));

    okptr->name = "HevTaskCIOFd";
    okptr->destruct = _hev_task_cio_fd_destruct;

    ckptr = &kptr->base;
    ckptr->read = _hev_task_cio_fd_read;
    ckptr->write = _hev_task_cio_fd_write;
    ckptr->readv = _hev_task_cio_fd_readv;
    ckptr->writev = _hev_task_cio_fd_writev;
    ckptr->ctrl = _hev_task_cio_fd_ctrl;

    return okptr;
}