/[dynamips]/upstream/dynamips-0.2.6-RC3/dev_vtty.h
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Annotation of /upstream/dynamips-0.2.6-RC3/dev_vtty.h

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Revision 2 - (hide annotations)
Sat Oct 6 16:03:58 2007 UTC (13 years, 9 months ago) by dpavlin
Original Path: upstream/dynamips-0.2.6-RC1/dev_vtty.h
File MIME type: text/plain
File size: 2566 byte(s)
import dynamips-0.2.6-RC1

1 dpavlin 1 /*
2     * Cisco 7200 (Predator) simulation platform.
3     * Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr)
4     *
5     * Virtual console TTY.
6     */
7    
8     #ifndef __DEV_VTTY_H__
9     #define __DEV_VTTY_H__
10    
11     #include <sys/types.h>
12     #include <pthread.h>
13    
14     #include "vm.h"
15     #include <stdio.h>
16    
17     /* 4 Kb should be enough for a keyboard buffer */
18     #define VTTY_BUFFER_SIZE 4096
19    
20     /* VTTY connection types */
21     enum {
22     VTTY_TYPE_NONE = 0,
23     VTTY_TYPE_TERM,
24     VTTY_TYPE_TCP,
25     VTTY_TYPE_SERIAL,
26     };
27    
28     /* VTTY connection states (for TCP) */
29     enum {
30     VTTY_STATE_TCP_INVALID, /* connection is not working */
31     VTTY_STATE_TCP_WAITING, /* waiting for incoming connection */
32     VTTY_STATE_TCP_RUNNING, /* character reading/writing ok */
33     };
34    
35     /* VTTY input states */
36     enum {
37     VTTY_INPUT_TEXT,
38     VTTY_INPUT_VT1,
39     VTTY_INPUT_VT2,
40     VTTY_INPUT_REMOTE,
41     VTTY_INPUT_TELNET,
42     VTTY_INPUT_TELNET_IYOU,
43     VTTY_INPUT_TELNET_SB1,
44     VTTY_INPUT_TELNET_SB2,
45     VTTY_INPUT_TELNET_SB_TTYPE,
46     VTTY_INPUT_TELNET_NEXT
47     };
48    
49    
50     /* Commmand line support utility */
51     typedef struct vtty_serial_option vtty_serial_option_t;
52     struct vtty_serial_option {
53     char *device;
54     int baudrate, databits, parity, stopbits, hwflow;
55     };
56    
57     int vtty_parse_serial_option(vtty_serial_option_t *params, char *optarg);
58    
59     /* Virtual TTY structure */
60     typedef struct virtual_tty vtty_t;
61     struct virtual_tty {
62     vm_instance_t *vm;
63     char *name;
64     int type,state;
65     int tcp_port;
66     int terminal_support;
67     int input_state;
68     int telnet_cmd, telnet_opt, telnet_qual;
69     int fd,accept_fd,*select_fd;
70     int managed_flush;
71     FILE *fstream;
72     u_char buffer[VTTY_BUFFER_SIZE];
73     u_int read_ptr,write_ptr;
74     pthread_mutex_t lock;
75     vtty_t *next,**pprev;
76     void *priv_data;
77    
78     /* Read notification */
79     void (*read_notifier)(vtty_t *);
80     };
81    
82     #define VTTY_LOCK(tty) pthread_mutex_lock(&(tty)->lock);
83     #define VTTY_UNLOCK(tty) pthread_mutex_unlock(&(tty)->lock);
84    
85     /* create a virtual tty */
86     vtty_t *vtty_create(vm_instance_t *vm,char *name,int type,int tcp_port,
87     const vtty_serial_option_t *option);
88    
89     /* delete a virtual tty */
90     void vtty_delete(vtty_t *vtty);
91    
92     /* read a character from the buffer (-1 if the buffer is empty) */
93     int vtty_get_char(vtty_t *vtty);
94    
95     /* print a character to vtty */
96     void vtty_put_char(vtty_t *vtty, char ch);
97    
98     /* Flush VTTY output */
99     void vtty_flush(vtty_t *vtty);
100    
101     /* returns TRUE if a character is available in buffer */
102     int vtty_is_char_avail(vtty_t *vtty);
103    
104     /* write CTRL+C to buffer */
105     int vtty_store_ctrlc(vtty_t *);
106    
107     /* Initialize the VTTY thread */
108     int vtty_init(void);
109    
110     #endif

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