Files
86Box/src/include/86box/network.h
2024-02-18 20:02:01 +03:00

257 lines
7.9 KiB
C

/*
* VARCem Virtual ARchaeological Computer EMulator.
* An emulator of (mostly) x86-based PC systems and devices,
* using the ISA,EISA,VLB,MCA and PCI system buses, roughly
* spanning the era between 1981 and 1995.
*
* Definitions for the network module.
*
*
*
* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
*
* Copyright 2017-2019 Fred N. van Kempen.
*
* 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 entire
* above 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.
*
* 3. Neither the name of the copyright holder nor the names
* of its contributors may be used to endorse or promote
* products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 COPYRIGHT
* HOLDER OR CONTRIBUTORS 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 EMU_NETWORK_H
#define EMU_NETWORK_H
#include <stdint.h>
/* Network provider types. */
#define NET_TYPE_NONE 0 /* use the null network driver */
#define NET_TYPE_SLIRP 1 /* use the SLiRP port forwarder */
#define NET_TYPE_PCAP 2 /* use the (Win)Pcap API */
#define NET_TYPE_VDE 3 /* use the VDE plug API */
#define NET_MAX_FRAME 1518
/* Queue size must be a power of 2 */
#define NET_QUEUE_LEN 16
#define NET_QUEUE_LEN_MASK (NET_QUEUE_LEN - 1)
#define NET_QUEUE_COUNT 3
#define NET_CARD_MAX 4
#define NET_HOST_INTF_MAX 64
#define NET_PERIOD_10M 0.8
#define NET_PERIOD_100M 0.08
/* Error buffers for network driver init */
#define NET_DRV_ERRBUF_SIZE 384
enum {
NET_LINK_DOWN = (1 << 1),
NET_LINK_TEMP_DOWN = (1 << 2),
NET_LINK_10_HD = (1 << 3),
NET_LINK_10_FD = (1 << 4),
NET_LINK_100_HD = (1 << 5),
NET_LINK_100_FD = (1 << 6),
NET_LINK_1000_HD = (1 << 7),
NET_LINK_1000_FD = (1 << 8),
};
enum {
NET_NONE = 0,
NET_INTERNAL
};
enum {
NET_QUEUE_RX = 0,
NET_QUEUE_TX_VM = 1,
NET_QUEUE_TX_HOST = 2
};
typedef struct netcard_conf_t {
uint16_t device_num;
int net_type;
char host_dev_name[128];
uint32_t link_state;
} netcard_conf_t;
extern netcard_conf_t net_cards_conf[NET_CARD_MAX];
extern uint16_t net_card_current;
typedef int (*NETRXCB)(void *, uint8_t *, int);
typedef int (*NETSETLINKSTATE)(void *, uint32_t link_state);
typedef struct netpkt {
uint8_t *data;
int len;
} netpkt_t;
typedef struct netqueue_t {
netpkt_t packets[NET_QUEUE_LEN];
int head;
int tail;
} netqueue_t;
typedef struct _netcard_t netcard_t;
typedef struct netdrv_t {
void (*notify_in)(void *priv);
void *(*init)(const netcard_t *card, const uint8_t *mac_addr, void *priv, char *netdrv_errbuf);
void (*close)(void *priv);
void *priv;
} netdrv_t;
extern const netdrv_t net_pcap_drv;
extern const netdrv_t net_slirp_drv;
extern const netdrv_t net_vde_drv;
extern const netdrv_t net_null_drv;
struct _netcard_t {
const device_t *device;
void *card_drv;
struct netdrv_t host_drv;
NETRXCB rx;
NETSETLINKSTATE set_link_state;
netqueue_t queues[NET_QUEUE_COUNT];
netpkt_t queued_pkt;
mutex_t *tx_mutex;
mutex_t *rx_mutex;
pc_timer_t timer;
uint16_t card_num;
double byte_period;
uint32_t led_timer;
uint32_t led_state;
uint32_t link_state;
};
typedef struct {
char device[128];
char description[128];
} netdev_t;
typedef struct {
int has_slirp;
int has_pcap;
int has_vde;
} network_devmap_t;
#define HAS_NOSLIRP_NET(x) (x.has_pcap || x.has_vde)
#ifdef __cplusplus
extern "C" {
#endif
/* Global variables. */
extern int nic_do_log; // config
extern network_devmap_t network_devmap;
extern int network_ndev; // Number of pcap devices
extern network_devmap_t network_devmap; // Bitmap of available network types
extern netdev_t network_devs[NET_HOST_INTF_MAX];
/* Function prototypes. */
extern void network_init(void);
extern netcard_t *network_attach(void *card_drv, uint8_t *mac, NETRXCB rx, NETSETLINKSTATE set_link_state);
extern void netcard_close(netcard_t *card);
extern void network_close(void);
extern void network_reset(void);
extern int network_available(void);
extern void network_tx(netcard_t *card, uint8_t *, int);
extern int net_pcap_prepare(netdev_t *);
extern int net_vde_prepare(void);
extern void network_connect(int id, int connect);
extern int network_is_connected(int id);
extern int network_dev_available(int);
extern int network_dev_to_id(char *);
extern int network_card_available(int);
extern int network_card_has_config(int);
extern const char *network_card_get_internal_name(int);
extern int network_card_get_from_internal_name(char *);
#ifdef EMU_DEVICE_H
extern const device_t *network_card_getdevice(int);
#endif
extern int network_tx_pop(netcard_t *card, netpkt_t *out_pkt);
extern int network_tx_popv(netcard_t *card, netpkt_t *pkt_vec, int vec_size);
extern int network_rx_put(netcard_t *card, uint8_t *bufp, int len);
extern int network_rx_put_pkt(netcard_t *card, netpkt_t *pkt);
#ifdef EMU_DEVICE_H
/* 3Com Etherlink */
extern const device_t threec501_device;
extern const device_t threec503_device;
/* Novell NE2000 and compatibles */
extern const device_t ne1000_device;
extern const device_t ne1000_compat_device;
extern const device_t ne2000_device;
extern const device_t ne2000_compat_device;
extern const device_t ethernext_mc_device;
extern const device_t rtl8019as_device;
extern const device_t de220p_device;
extern const device_t rtl8029as_device;
/* AMD PCnet*/
extern const device_t pcnet_am79c960_device;
extern const device_t pcnet_am79c960_eb_device;
extern const device_t pcnet_am79c960_vlb_device;
extern const device_t pcnet_am79c961_device;
extern const device_t pcnet_am79c970a_device;
extern const device_t pcnet_am79c973_device;
extern const device_t pcnet_am79c973_onboard_device;
/* PLIP */
#ifdef EMU_LPT_H
extern const lpt_device_t lpt_plip_device;
#endif
extern const device_t plip_device;
/* Realtek RTL8139C+ */
extern const device_t rtl8139c_plus_device;
/* DEC Tulip */
extern const device_t dec_tulip_device;
extern const device_t dec_tulip_21140_device;
extern const device_t dec_tulip_21140_vpc_device;
extern const device_t dec_tulip_21040_device;
/* WD 80x3 */
extern const device_t wd8003e_device;
extern const device_t wd8003eb_device;
extern const device_t wd8013ebt_device;
extern const device_t wd8003eta_device;
extern const device_t wd8003ea_device;
extern const device_t wd8013epa_device;
#endif
#ifdef __cplusplus
}
#endif
#endif /*EMU_NETWORK_H*/