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hyung-hwan
2022-10-02 19:30:14 +09:00
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/*
Copyright (c) 2016-2020 Chung, Hyung-Hwan. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _HIO_SCK_H_
#define _HIO_SCK_H_
#include <hio.h>
#include <hio-skad.h>
/* ========================================================================= */
/* TOOD: move these to a separate file */
#define HIO_ETHHDR_PROTO_IP4 0x0800
#define HIO_ETHHDR_PROTO_ARP 0x0806
#define HIO_ETHHDR_PROTO_8021Q 0x8100 /* 802.1Q VLAN */
#define HIO_ETHHDR_PROTO_IP6 0x86DD
#define HIO_ARPHDR_OPCODE_REQUEST 1
#define HIO_ARPHDR_OPCODE_REPLY 2
#define HIO_ARPHDR_HTYPE_ETH 0x0001
#define HIO_ARPHDR_PTYPE_IP4 0x0800
#include <hio-pac1.h>
struct HIO_PACKED hio_ethhdr_t
{
hio_uint8_t dest[HIO_ETHAD_LEN];
hio_uint8_t source[HIO_ETHAD_LEN];
hio_uint16_t proto;
};
typedef struct hio_ethhdr_t hio_ethhdr_t;
struct HIO_PACKED hio_arphdr_t
{
hio_uint16_t htype; /* hardware type (ethernet: 0x0001) */
hio_uint16_t ptype; /* protocol type (ipv4: 0x0800) */
hio_uint8_t hlen; /* hardware address length (ethernet: 6) */
hio_uint8_t plen; /* protocol address length (ipv4 :4) */
hio_uint16_t opcode; /* operation code */
};
typedef struct hio_arphdr_t hio_arphdr_t;
/* arp payload for ipv4 over ethernet */
struct HIO_PACKED hio_etharp_t
{
hio_uint8_t sha[HIO_ETHAD_LEN]; /* source hardware address */
hio_uint8_t spa[HIO_IP4AD_LEN]; /* source protocol address */
hio_uint8_t tha[HIO_ETHAD_LEN]; /* target hardware address */
hio_uint8_t tpa[HIO_IP4AD_LEN]; /* target protocol address */
};
typedef struct hio_etharp_t hio_etharp_t;
struct HIO_PACKED hio_etharp_pkt_t
{
hio_ethhdr_t ethhdr;
hio_arphdr_t arphdr;
hio_etharp_t arppld;
};
typedef struct hio_etharp_pkt_t hio_etharp_pkt_t;
struct hio_iphdr_t
{
#if defined(HIO_ENDIAN_LITTLE)
hio_uint8_t ihl:4;
hio_uint8_t version:4;
#elif defined(HIO_ENDIAN_BIG)
hio_uint8_t version:4;
hio_uint8_t ihl:4;
#else
# UNSUPPORTED ENDIAN
#endif
hio_int8_t tos;
hio_int16_t tot_len;
hio_int16_t id;
hio_int16_t frag_off;
hio_int8_t ttl;
hio_int8_t protocol;
hio_int16_t check;
hio_int32_t saddr;
hio_int32_t daddr;
/*The options start here. */
};
typedef struct hio_iphdr_t hio_iphdr_t;
struct HIO_PACKED hio_icmphdr_t
{
hio_uint8_t type; /* message type */
hio_uint8_t code; /* subcode */
hio_uint16_t checksum;
union
{
struct
{
hio_uint16_t id;
hio_uint16_t seq;
} echo;
hio_uint32_t gateway;
struct
{
hio_uint16_t frag_unused;
hio_uint16_t mtu;
} frag; /* path mut discovery */
} u;
};
typedef struct hio_icmphdr_t hio_icmphdr_t;
#include <hio-upac.h>
/* ICMP types */
#define HIO_ICMP_ECHO_REPLY 0
#define HIO_ICMP_UNREACH 3 /* destination unreachable */
#define HIO_ICMP_SOURCE_QUENCE 4
#define HIO_ICMP_REDIRECT 5
#define HIO_ICMP_ECHO_REQUEST 8
#define HIO_ICMP_TIME_EXCEEDED 11
#define HIO_ICMP_PARAM_PROBLEM 12
#define HIO_ICMP_TIMESTAMP_REQUEST 13
#define HIO_ICMP_TIMESTAMP_REPLY 14
#define HIO_ICMP_INFO_REQUEST 15
#define HIO_ICMP_INFO_REPLY 16
#define HIO_ICMP_ADDR_MASK_REQUEST 17
#define HIO_ICMP_ADDR_MASK_REPLY 18
/* Subcode for HIO_ICMP_UNREACH */
#define HIO_ICMP_UNREACH_NET 0
#define HIO_ICMP_UNREACH_HOST 1
#define HIO_ICMP_UNREACH_PROTOCOL 2
#define HIO_ICMP_UNREACH_PORT 3
#define HIO_ICMP_UNREACH_FRAG_NEEDED 4
/* Subcode for HIO_ICMP_REDIRECT */
#define HIO_ICMP_REDIRECT_NET 0
#define HIO_ICMP_REDIRECT_HOST 1
#define HIO_ICMP_REDIRECT_NETTOS 2
#define HIO_ICMP_REDIRECT_HOSTTOS 3
/* Subcode for HIO_ICMP_TIME_EXCEEDED */
#define HIO_ICMP_TIME_EXCEEDED_TTL 0
#define HIO_ICMP_TIME_EXCEEDED_FRAGTIME 1
/* ========================================================================= */
#if (HIO_SIZEOF_SOCKLEN_T == HIO_SIZEOF_INT)
#if defined(HIO_SOCKLEN_T_IS_SIGNED)
typedef int hio_scklen_t;
#else
typedef unsigned int hio_scklen_t;
#endif
#elif (HIO_SIZEOF_SOCKLEN_T == HIO_SIZEOF_LONG)
#if defined(HIO_SOCKLEN_T_IS_SIGNED)
typedef long hio_scklen_t;
#else
typedef unsigned long hio_scklen_t;
#endif
#else
typedef int hio_scklen_t;
#endif
/* ========================================================================= */
enum hio_dev_sck_ioctl_cmd_t
{
HIO_DEV_SCK_BIND,
HIO_DEV_SCK_CONNECT,
HIO_DEV_SCK_LISTEN
};
typedef enum hio_dev_sck_ioctl_cmd_t hio_dev_sck_ioctl_cmd_t;
#define HIO_DEV_SCK_SET_PROGRESS(dev,bit) do { \
(dev)->state &= ~HIO_DEV_SCK_ALL_PROGRESS_BITS; \
(dev)->state |= (bit); \
} while(0)
#define HIO_DEV_SCK_GET_PROGRESS(dev) ((dev)->state & HIO_DEV_SCK_ALL_PROGRESS_BITS)
enum hio_dev_sck_state_t
{
/* the following items(progress bits) are mutually exclusive */
HIO_DEV_SCK_CONNECTING = (1 << 0),
HIO_DEV_SCK_CONNECTING_SSL = (1 << 1),
HIO_DEV_SCK_CONNECTED = (1 << 2),
HIO_DEV_SCK_LISTENING = (1 << 3),
HIO_DEV_SCK_ACCEPTING_SSL = (1 << 4),
HIO_DEV_SCK_ACCEPTED = (1 << 5),
/* the following items can be bitwise-ORed with an exclusive item above */
HIO_DEV_SCK_LENIENT = (1 << 14),
HIO_DEV_SCK_INTERCEPTED = (1 << 15),
/* convenience bit masks */
HIO_DEV_SCK_ALL_PROGRESS_BITS = (HIO_DEV_SCK_CONNECTING |
HIO_DEV_SCK_CONNECTING_SSL |
HIO_DEV_SCK_CONNECTED |
HIO_DEV_SCK_LISTENING |
HIO_DEV_SCK_ACCEPTING_SSL |
HIO_DEV_SCK_ACCEPTED)
};
typedef enum hio_dev_sck_state_t hio_dev_sck_state_t;
typedef struct hio_dev_sck_t hio_dev_sck_t;
typedef int (*hio_dev_sck_on_read_t) (
hio_dev_sck_t* dev,
const void* data,
hio_iolen_t dlen,
const hio_skad_t* srcaddr
);
typedef int (*hio_dev_sck_on_write_t) (
hio_dev_sck_t* dev,
hio_iolen_t wrlen,
void* wrctx,
const hio_skad_t* dstaddr
);
typedef void (*hio_dev_sck_on_disconnect_t) (
hio_dev_sck_t* dev
);
typedef void (*hio_dev_sck_on_connect_t) (
hio_dev_sck_t* dev
);
typedef void (*hio_dev_sck_on_raw_accept_t) (
hio_dev_sck_t* dev,
hio_syshnd_t syshnd,
hio_skad_t* peeradr
);
enum hio_dev_sck_type_t
{
HIO_DEV_SCK_QX,
HIO_DEV_SCK_UNIX,
HIO_DEV_SCK_TCP4,
HIO_DEV_SCK_TCP6,
HIO_DEV_SCK_UDP4,
HIO_DEV_SCK_UDP6,
HIO_DEV_SCK_SCTP4, /* one-to-one sctp stream */
HIO_DEV_SCK_SCTP6, /* one-to-one sctp stream */
HIO_DEV_SCK_SCTP4_SP, /* one-to-one sctp seqpacket */
HIO_DEV_SCK_SCTP6_SP, /* one-to-one sctp seqpacket */
/* ICMP at the IPv4 layer */
HIO_DEV_SCK_ICMP4,
/* ICMP at the IPv6 layer */
HIO_DEV_SCK_ICMP6,
/* ARP at the ethernet layer */
HIO_DEV_SCK_ARP,
HIO_DEV_SCK_ARP_DGRAM,
/* raw L2-level packet */
HIO_DEV_SCK_PACKET,
/* bpf socket */
HIO_DEV_SCK_BPF
};
typedef enum hio_dev_sck_type_t hio_dev_sck_type_t;
enum hio_dev_sck_make_option_t
{
/* for now, accept failure doesn't affect the listing socket if this is set */
HIO_DEV_SCK_MAKE_LENIENT = (1 << 0)
};
typedef enum hio_dev_sck_make_option_t hio_dev_sck_make_option_t;
typedef struct hio_dev_sck_make_t hio_dev_sck_make_t;
struct hio_dev_sck_make_t
{
hio_dev_sck_type_t type;
int options;
hio_syshnd_t syshnd;
hio_dev_sck_on_write_t on_write;
hio_dev_sck_on_read_t on_read;
hio_dev_sck_on_connect_t on_connect;
hio_dev_sck_on_disconnect_t on_disconnect;
hio_dev_sck_on_raw_accept_t on_raw_accept; /* optional */
};
enum hio_dev_sck_bind_option_t
{
HIO_DEV_SCK_BIND_BROADCAST = (1 << 0),
HIO_DEV_SCK_BIND_REUSEADDR = (1 << 1),
HIO_DEV_SCK_BIND_REUSEPORT = (1 << 2),
HIO_DEV_SCK_BIND_TRANSPARENT = (1 << 3),
/* TODO: more options --- SO_RCVBUF, SO_SNDBUF, SO_RCVTIMEO, SO_SNDTIMEO, SO_KEEPALIVE */
/* BINDTODEVICE??? */
HIO_DEV_SCK_BIND_IGNERR = (1 << 14), /* ignore non-critical error in binding */
HIO_DEV_SCK_BIND_SSL = (1 << 15)
};
typedef enum hio_dev_sck_bind_option_t hio_dev_sck_bind_option_t;
typedef struct hio_dev_sck_bind_t hio_dev_sck_bind_t;
struct hio_dev_sck_bind_t
{
int options; /** 0 or bitwise-OR'ed of hio_dev_sck_bind_option_t enumerators */
hio_skad_t localaddr;
/* TODO: add device name for BIND_TO_DEVICE */
const hio_bch_t* ssl_certfile;
const hio_bch_t* ssl_keyfile;
};
enum hio_dev_sck_connect_option_t
{
HIO_DEV_SCK_CONNECT_SSL = (1 << 15)
};
typedef enum hio_dev_sck_connect_option_t hio_dev_sck_connect_option_t;
typedef struct hio_dev_sck_connect_t hio_dev_sck_connect_t;
struct hio_dev_sck_connect_t
{
int options;
hio_skad_t remoteaddr;
hio_ntime_t connect_tmout;
};
#if 0
enum hio_dev_sck_listen_option_t
{
};
typedef enum hio_dev_sck_listen_option_t hio_dev_sck_listen_option_t;
#endif
typedef struct hio_dev_sck_listen_t hio_dev_sck_listen_t;
struct hio_dev_sck_listen_t
{
int options; /* no options as of now. set it to 0 */
int backlogs;
hio_ntime_t accept_tmout;
};
struct hio_dev_sck_t
{
HIO_DEV_HEADER;
hio_dev_sck_type_t type;
hio_syshnd_t hnd;
int state;
/* remote peer address for a stream socket. valid if one of the
* followings is set in state:
* HIO_DEV_TCP_ACCEPTING_SSL
* HIO_DEV_TCP_ACCEPTED
* HIO_DEV_TCP_CONNECTED
* HIO_DEV_TCP_CONNECTING
* HIO_DEV_TCP_CONNECTING_SSL
*
* also used as a placeholder to store source address for
* a stateless socket */
hio_skad_t remoteaddr;
/* local socket address */
hio_skad_t localaddr;
/* original destination address */
hio_skad_t orgdstaddr;
hio_dev_sck_on_write_t on_write;
hio_dev_sck_on_read_t on_read;
/* called on a new tcp device for an accepted client or
* on a tcp device conntected to a remote server */
hio_dev_sck_on_connect_t on_connect;
hio_dev_sck_on_disconnect_t on_disconnect;
hio_dev_sck_on_raw_accept_t on_raw_accept;
/* timer job index for handling
* - connect() timeout for a connecting socket.
* - SSL_accept() timeout for a socket accepting SSL */
hio_tmridx_t tmrjob_index;
/* connect timeout, ssl-connect timeout, ssl-accept timeout.
* it denotes timeout duration under some circumstances
* or an absolute expiry time under some other circumstances. */
hio_ntime_t tmout;
void* ssl_ctx;
void* ssl;
hio_syshnd_t side_chan; /* side-channel for HIO_DEV_SCK_QX */
};
enum hio_dev_sck_shutdown_how_t
{
HIO_DEV_SCK_SHUTDOWN_READ = (1 << 0),
HIO_DEV_SCK_SHUTDOWN_WRITE = (1 << 1)
};
typedef enum hio_dev_sck_shutdown_how_t hio_dev_sck_shutdown_how_t;
enum hio_dev_sck_qxmsg_cmd_t
{
HIO_DEV_SCK_QXMSG_NEWCONN = 0
};
typedef enum hio_dev_sck_qxmsg_cmd_t hio_dev_sck_qxmsg_cmd_t;
struct hio_dev_sck_qxmsg_t
{
hio_dev_sck_qxmsg_cmd_t cmd;
hio_dev_sck_type_t scktype;
hio_syshnd_t syshnd;
hio_skad_t remoteaddr;
};
typedef struct hio_dev_sck_qxmsg_t hio_dev_sck_qxmsg_t;
#if defined(__cplusplus)
extern "C" {
#endif
/* ========================================================================= */
HIO_EXPORT hio_dev_sck_t* hio_dev_sck_make (
hio_t* hio,
hio_oow_t xtnsize,
const hio_dev_sck_make_t* info
);
#if defined(HIO_HAVE_INLINE)
static HIO_INLINE hio_t* hio_dev_sck_gethio (hio_dev_sck_t* sck) { return hio_dev_gethio((hio_dev_t*)sck); }
static HIO_INLINE void* hio_dev_sck_getxtn (hio_dev_sck_t* sck) { return (void*)(sck + 1); }
static HIO_INLINE hio_dev_sck_type_t hio_dev_sck_gettype (hio_dev_sck_t* sck) { return sck->type; }
static HIO_INLINE hio_syshnd_t hio_dev_sck_getsyshnd (hio_dev_sck_t* sck) { return sck->hnd; }
#else
# define hio_dev_sck_gethio(sck) hio_dev_gethio(sck)
# define hio_dev_sck_getxtn(sck) ((void*)(((hio_dev_sck_t*)sck) + 1))
# define hio_dev_sck_gettype(sck) (((hio_dev_sck_t*)sck)->type)
# define hio_dev_sck_getsyshnd(sck) (((hio_dev_sck_t*)sck)->hnd)
#endif
HIO_EXPORT int hio_dev_sck_bind (
hio_dev_sck_t* dev,
hio_dev_sck_bind_t* info
);
HIO_EXPORT int hio_dev_sck_connect (
hio_dev_sck_t* dev,
hio_dev_sck_connect_t* info
);
HIO_EXPORT int hio_dev_sck_listen (
hio_dev_sck_t* dev,
hio_dev_sck_listen_t* info
);
HIO_EXPORT int hio_dev_sck_write (
hio_dev_sck_t* dev,
const void* data,
hio_iolen_t len,
void* wrctx,
const hio_skad_t* dstaddr
);
HIO_EXPORT int hio_dev_sck_writev (
hio_dev_sck_t* dev,
hio_iovec_t* iov,
hio_iolen_t iovcnt,
void* wrctx,
const hio_skad_t* dstaddr
);
HIO_EXPORT int hio_dev_sck_timedwrite (
hio_dev_sck_t* dev,
const void* data,
hio_iolen_t len,
const hio_ntime_t* tmout,
void* wrctx,
const hio_skad_t* dstaddr
);
HIO_EXPORT int hio_dev_sck_timedwritev (
hio_dev_sck_t* dev,
hio_iovec_t* iov,
hio_iolen_t iovcnt,
const hio_ntime_t* tmout,
void* wrctx,
const hio_skad_t* dstaddr
);
#if defined(HIO_HAVE_INLINE)
static HIO_INLINE void hio_dev_sck_kill (hio_dev_sck_t* sck)
{
hio_dev_kill ((hio_dev_t*)sck);
}
static HIO_INLINE void hio_dev_sck_halt (hio_dev_sck_t* sck)
{
hio_dev_halt ((hio_dev_t*)sck);
}
static HIO_INLINE int hio_dev_sck_read (hio_dev_sck_t* sck, int enabled)
{
return hio_dev_read((hio_dev_t*)sck, enabled);
}
static HIO_INLINE int hio_dev_sck_timedread (hio_dev_sck_t* sck, int enabled, hio_ntime_t* tmout)
{
return hio_dev_timedread((hio_dev_t*)sck, enabled, tmout);
}
static HIO_INLINE int hio_dev_sck_sendfile (hio_dev_sck_t* sck, hio_syshnd_t in_fd, hio_foff_t foff, hio_iolen_t len, void* wrctx)
{
return hio_dev_sendfile((hio_dev_t*)sck, in_fd, foff, len, wrctx);
}
static HIO_INLINE int hio_dev_sck_timedsendfile (hio_dev_sck_t* sck, hio_syshnd_t in_fd, hio_foff_t foff, hio_iolen_t len, hio_ntime_t* tmout, void* wrctx)
{
return hio_dev_timedsendfile((hio_dev_t*)sck, in_fd, foff, len, tmout, wrctx);
}
#else
#define hio_dev_sck_kill(sck) hio_dev_kill((hio_dev_t*)sck)
#define hio_dev_sck_halt(sck) hio_dev_halt((hio_dev_t*)sck)
#define hio_dev_sck_read(sck,enabled) hio_dev_read((hio_dev_t*)sck, enabled)
#define hio_dev_sck_timedread(sck,enabled,tmout) hio_dev_timedread((hio_dev_t*)sck, enabled, tmout)
#define hio_dev_sck_sendfile(sck,in_fd,foff,len,wrctx) hio_dev_sendfile((hio_dev_t*)sck, in_fd, foff, len, wrctx)
#define hio_dev_sck_timedsendfile(sck,in_fd,foff,len,tmout,wrctx) hio_dev_timedsendfile((hio_dev_t*)sck, in_fd, foff, len, tmout, wrctx)
#endif
HIO_EXPORT int hio_dev_sck_setsockopt (
hio_dev_sck_t* dev,
int level,
int optname,
void* optval,
hio_scklen_t optlen
);
HIO_EXPORT int hio_dev_sck_getsockopt (
hio_dev_sck_t* dev,
int level,
int optname,
void* optval,
hio_scklen_t* optlen
);
HIO_EXPORT int hio_dev_sck_getsockaddr (
hio_dev_sck_t* dev,
hio_skad_t* skad
);
HIO_EXPORT int hio_dev_sck_getpeeraddr (
hio_dev_sck_t* dev,
hio_skad_t* skad
);
HIO_EXPORT int hio_dev_sck_joinmcastgroup (
hio_dev_sck_t* dev,
const hio_skad_t* mcast_skad,
int ifindex
);
HIO_EXPORT int hio_dev_sck_leavemcastgroup (
hio_dev_sck_t* dev,
const hio_skad_t* mcast_skad,
int ifindex
);
HIO_EXPORT int hio_dev_sck_shutdown (
hio_dev_sck_t* dev,
int how /* bitwise-ORed of hio_dev_sck_shutdown_how_t enumerators */
);
HIO_EXPORT int hio_dev_sck_sendfileok (
hio_dev_sck_t* dev
);
HIO_EXPORT int hio_dev_sck_writetosidechan (
hio_dev_sck_t* htts,
const void* dptr,
hio_oow_t dlen
);
HIO_EXPORT hio_uint16_t hio_checksum_ip (
const void* hdr,
hio_oow_t len
);
#if defined(__cplusplus)
}
#endif
#endif