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1
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2
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#include <stdio.h>
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3
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#include <stdarg.h>
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4
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#include <stdlib.h>
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5
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#include <unistd.h>
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6
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#include <string.h>
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7
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#include <errno.h>
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8
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#include <ctype.h>
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9
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#include <termios.h>
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10
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11
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#include <sys/utsname.h>
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12
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#include <sys/param.h>
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13
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14
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#include "zebvty.h"
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15
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#include "vty.h"
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16
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#include "command.h"
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17
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#include "buffer.h"
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18
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19
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/* Vty events */
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20
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enum event {
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21
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VTY_SERV,
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22
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VTY_READ,
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23
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VTY_WRITE,
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24
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VTY_TIMEOUT_RESET,
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25
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#ifdef VTYSH
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26
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VTYSH_SERV,
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27
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VTYSH_READ,
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28
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VTYSH_WRITE
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29
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#endif /* VTYSH */
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30
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};
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31
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32
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extern struct host host;
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33
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34
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/* Vector which store each vty structure. */
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35
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static vector vtyvec;
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36
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37
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vector Vvty_serv_thread;
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38
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39
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char *vty_cwd = NULL;
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40
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41
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/* Configure lock. */
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42
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static int vty_config;
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43
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44
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static int no_password_check = 1;
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45
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46
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static void vty_clear_buf(struct vty *vty)
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47
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{
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48
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memset(vty->buf, 0, vty->max);
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49
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}
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50
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51
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/* Allocate new vty struct. */
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52
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struct vty *vty_new()
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53
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{
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54
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struct vty *new = malloc(sizeof(struct vty));
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55
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56
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if (!new)
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57
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goto out;
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58
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59
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new->obuf = buffer_new(0); /* Use default buffer size. */
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60
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if (!new->obuf)
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61
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goto out_new;
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62
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new->buf = calloc(1, VTY_BUFSIZ);
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63
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if (!new->buf)
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64
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goto out_obuf;
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65
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66
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new->max = VTY_BUFSIZ;
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67
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68
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return new;
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69
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70
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out_obuf:
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71
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free(new->obuf);
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72
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out_new:
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73
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free(new);
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74
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new = NULL;
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75
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out:
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76
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return new;
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77
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}
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78
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79
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/* Authentication of vty */
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80
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static void vty_auth(struct vty *vty, char *buf)
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81
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{
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82
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char *passwd = NULL;
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83
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enum node_type next_node = 0;
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84
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int fail;
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85
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char *crypt(const char *, const char *);
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86
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|
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87
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switch (vty->node) {
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88
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case AUTH_NODE:
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89
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if (host.encrypt)
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90
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passwd = host.password_encrypt;
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91
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else
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92
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passwd = host.password;
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93
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if (host.advanced)
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94
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next_node = host.enable ? VIEW_NODE : ENABLE_NODE;
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95
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else
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96
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next_node = VIEW_NODE;
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97
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break;
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98
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case AUTH_ENABLE_NODE:
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99
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if (host.encrypt)
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100
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passwd = host.enable_encrypt;
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101
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else
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102
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passwd = host.enable;
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103
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next_node = ENABLE_NODE;
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104
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break;
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105
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}
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106
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107
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if (passwd) {
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108
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if (host.encrypt)
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109
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fail = strcmp(crypt(buf, passwd), passwd);
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110
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else
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111
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fail = strcmp(buf, passwd);
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112
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} else
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113
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fail = 1;
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114
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|
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115
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if (!fail) {
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116
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vty->fail = 0;
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117
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vty->node = next_node; /* Success ! */
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118
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} else {
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119
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vty->fail++;
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120
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if (vty->fail >= 3) {
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121
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if (vty->node == AUTH_NODE) {
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122
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vty_out(vty,
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123
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"%% Bad passwords, too many failures!%s",
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124
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VTY_NEWLINE);
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125
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vty->status = VTY_CLOSE;
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126
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} else {
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127
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/* AUTH_ENABLE_NODE */
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128
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vty->fail = 0;
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129
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vty_out(vty,
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130
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"%% Bad enable passwords, too many failures!%s",
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131
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VTY_NEWLINE);
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132
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vty->node = VIEW_NODE;
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133
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}
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134
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}
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135
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}
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136
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}
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137
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138
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/* Close vty interface. */
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139
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void vty_close(struct vty *vty)
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140
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{
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141
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int i;
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142
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143
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/* Flush buffer. */
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144
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buffer_flush_all(vty->obuf, vty->fd);
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145
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146
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/* Free input buffer. */
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147
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buffer_free(vty->obuf);
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148
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149
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/* Free command history. */
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150
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for (i = 0; i < VTY_MAXHIST; i++)
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151
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if (vty->hist[i])
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152
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free(vty->hist[i]);
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153
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154
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/* Unset vector. */
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155
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vector_unset(vtyvec, vty->fd);
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156
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157
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/* Close socket. */
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158
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if (vty->fd > 0)
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159
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close(vty->fd);
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160
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161
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if (vty->buf)
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162
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free(vty->buf);
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163
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164
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/* Check configure. */
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165
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vty_config_unlock(vty);
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166
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|
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167
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/* OK free vty. */
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168
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free(vty);
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169
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}
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170
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|
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171
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int vty_shell(struct vty *vty)
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172
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{
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173
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return vty->type == VTY_SHELL ? 1 : 0;
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174
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}
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175
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|
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176
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177
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/* VTY standard output function. */
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178
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int vty_out(struct vty *vty, const char *format, ...)
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179
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{
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180
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va_list args;
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181
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int len = 0;
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182
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int size = 1024;
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183
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char buf[1024];
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184
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char *p = NULL;
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185
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186
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if (vty_shell(vty)) {
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187
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va_start(args, format);
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188
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vprintf(format, args);
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189
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va_end(args);
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190
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} else {
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191
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/* Try to write to initial buffer. */
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192
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va_start(args, format);
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193
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len = vsnprintf(buf, sizeof buf, format, args);
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194
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va_end(args);
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195
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196
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/* Initial buffer is not enough. */
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197
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if (len < 0 || len >= size) {
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198
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while (1) {
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199
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if (len > -1)
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200
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size = len + 1;
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201
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else
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202
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size = size * 2;
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203
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204
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p = realloc(p, size);
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205
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if (!p)
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206
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return -1;
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207
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208
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va_start(args, format);
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209
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len = vsnprintf(p, size, format, args);
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210
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va_end(args);
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211
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212
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if (len > -1 && len < size)
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213
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break;
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214
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}
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215
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}
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216
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217
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/* When initial buffer is enough to store all output. */
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218
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if (!p)
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219
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p = buf;
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220
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221
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/* Pointer p must point out buffer. */
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222
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buffer_put(vty->obuf, (u_char *) p, len);
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223
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224
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/* If p is not different with buf, it is allocated buffer. */
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225
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if (p != buf)
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226
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free(p);
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227
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}
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228
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|
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229
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return len;
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230
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}
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231
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232
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int vty_out_newline(struct vty *vty)
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233
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{
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234
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char *p = vty_newline(vty);
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235
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buffer_put(vty->obuf, p, strlen(p));
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236
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}
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237
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|
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238
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int vty_config_lock(struct vty *vty)
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239
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{
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240
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if (vty_config == 0) {
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241
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vty->config = 1;
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242
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vty_config = 1;
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243
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}
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244
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return vty->config;
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245
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}
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|
246
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|
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247
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int vty_config_unlock(struct vty *vty)
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248
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{
|
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249
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if (vty_config == 1 && vty->config == 1) {
|
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250
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vty->config = 0;
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251
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vty_config = 0;
|
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252
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}
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253
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return vty->config;
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254
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}
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|
255
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|
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256
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static void vty_event(enum event event, int sock, struct vty *vty)
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257
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{
|
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258
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//fprintf(stdout, "vty_event(%d, %d, %p)\n", event, sock, vty);
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259
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buffer_flush_all(vty->obuf, sock);
|
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260
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}
|
|
261
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|
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262
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/* Say hello to vty interface. */
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263
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void vty_hello(struct vty *vty)
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264
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{
|
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265
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if (host.motdfile) {
|
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266
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FILE *f;
|
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267
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char buf[4096];
|
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268
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|
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269
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f = fopen(host.motdfile, "r");
|
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270
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if (f) {
|
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271
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while (fgets(buf, sizeof(buf), f)) {
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272
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char *s;
|
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273
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/* work backwards to ignore trailling isspace() */
|
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274
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for (s = buf + strlen(buf);
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275
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(s > buf) && isspace(*(s - 1)); s--) ;
|
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276
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*s = '\0';
|
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277
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vty_out(vty, "%s%s", buf, VTY_NEWLINE);
|
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278
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}
|
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279
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fclose(f);
|
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280
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} else
|
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281
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vty_out(vty, "MOTD file not found%s", VTY_NEWLINE);
|
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282
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} else if (host.motd)
|
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283
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vty_out(vty, host.motd);
|
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284
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}
|
|
285
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|
|
286
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/* Put out prompt and wait input from user. */
|
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287
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static void vty_prompt(struct vty *vty)
|
|
288
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{
|
|
289
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struct utsname names;
|
|
290
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const char *hostname;
|
|
291
|
|
|
292
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if (vty->type == VTY_TERM) {
|
|
293
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hostname = host.name;
|
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294
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if (!hostname) {
|
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295
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uname(&names);
|
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296
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hostname = names.nodename;
|
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297
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}
|
|
298
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vty_out(vty, cmd_prompt(vty->node), hostname);
|
|
299
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}
|
|
300
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}
|
|
301
|
|
|
302
|
/* Command execution over the vty interface. */
|
|
303
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static int vty_command(struct vty *vty, char *buf)
|
|
304
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{
|
|
305
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int ret;
|
|
306
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vector vline;
|
|
307
|
|
|
308
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/* Split readline string up into the vector */
|
|
309
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vline = cmd_make_strvec(buf);
|
|
310
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|
|
311
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if (vline == NULL)
|
|
312
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return CMD_SUCCESS;
|
|
313
|
|
|
314
|
ret = cmd_execute_command(vline, vty, NULL, 0);
|
|
315
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if (ret != CMD_SUCCESS)
|
|
316
|
switch (ret) {
|
|
317
|
case CMD_WARNING:
|
|
318
|
if (vty->type == VTY_FILE)
|
|
319
|
vty_out(vty, "Warning...%s", VTY_NEWLINE);
|
|
320
|
break;
|
|
321
|
case CMD_ERR_AMBIGUOUS:
|
|
322
|
vty_out(vty, "%% Ambiguous command.%s", VTY_NEWLINE);
|
|
323
|
break;
|
|
324
|
case CMD_ERR_NO_MATCH:
|
|
325
|
vty_out(vty, "%% Unknown command.%s", VTY_NEWLINE);
|
|
326
|
break;
|
|
327
|
case CMD_ERR_INCOMPLETE:
|
|
328
|
vty_out(vty, "%% Command incomplete.%s", VTY_NEWLINE);
|
|
329
|
break;
|
|
330
|
}
|
|
331
|
cmd_free_strvec(vline);
|
|
332
|
|
|
333
|
return ret;
|
|
334
|
}
|
|
335
|
|
|
336
|
static const char telnet_backward_char = 0x08;
|
|
337
|
static const char telnet_space_char = ' ';
|
|
338
|
|
|
339
|
/* Basic function to write buffer to vty. */
|
|
340
|
static void vty_write(struct vty *vty, const char *buf, size_t nbytes)
|
|
341
|
{
|
|
342
|
if ((vty->node == AUTH_NODE) || (vty->node == AUTH_ENABLE_NODE))
|
|
343
|
return;
|
|
344
|
|
|
345
|
/* Should we do buffering here ? And make vty_flush (vty) ? */
|
|
346
|
buffer_put(vty->obuf, buf, nbytes);
|
|
347
|
}
|
|
348
|
|
|
349
|
/* Ensure length of input buffer. Is buffer is short, double it. */
|
|
350
|
static void vty_ensure(struct vty *vty, int length)
|
|
351
|
{
|
|
352
|
if (vty->max <= length) {
|
|
353
|
vty->max *= 2;
|
|
354
|
vty->buf = realloc(vty->buf, vty->max);
|
|
355
|
// FIXME: check return
|
|
356
|
}
|
|
357
|
}
|
|
358
|
|
|
359
|
/* Basic function to insert character into vty. */
|
|
360
|
static void vty_self_insert(struct vty *vty, char c)
|
|
361
|
{
|
|
362
|
int i;
|
|
363
|
int length;
|
|
364
|
|
|
365
|
vty_ensure(vty, vty->length + 1);
|
|
366
|
length = vty->length - vty->cp;
|
|
367
|
memmove(&vty->buf[vty->cp + 1], &vty->buf[vty->cp], length);
|
|
368
|
vty->buf[vty->cp] = c;
|
|
369
|
|
|
370
|
vty_write(vty, &vty->buf[vty->cp], length + 1);
|
|
371
|
for (i = 0; i < length; i++)
|
|
372
|
vty_write(vty, &telnet_backward_char, 1);
|
|
373
|
|
|
374
|
vty->cp++;
|
|
375
|
vty->length++;
|
|
376
|
}
|
|
377
|
|
|
378
|
/* Self insert character 'c' in overwrite mode. */
|
|
379
|
static void vty_self_insert_overwrite(struct vty *vty, char c)
|
|
380
|
{
|
|
381
|
vty_ensure(vty, vty->length + 1);
|
|
382
|
vty->buf[vty->cp++] = c;
|
|
383
|
|
|
384
|
if (vty->cp > vty->length)
|
|
385
|
vty->length++;
|
|
386
|
|
|
387
|
if ((vty->node == AUTH_NODE) || (vty->node == AUTH_ENABLE_NODE))
|
|
388
|
return;
|
|
389
|
|
|
390
|
vty_write(vty, &c, 1);
|
|
391
|
}
|
|
392
|
|
|
393
|
/* Insert a word into vty interface with overwrite mode. */
|
|
394
|
static void vty_insert_word_overwrite(struct vty *vty, char *str)
|
|
395
|
{
|
|
396
|
int len = strlen(str);
|
|
397
|
vty_write(vty, str, len);
|
|
398
|
strcpy(&vty->buf[vty->cp], str);
|
|
399
|
vty->cp += len;
|
|
400
|
vty->length = vty->cp;
|
|
401
|
}
|
|
402
|
|
|
403
|
/* Forward character. */
|
|
404
|
static void vty_forward_char(struct vty *vty)
|
|
405
|
{
|
|
406
|
if (vty->cp < vty->length) {
|
|
407
|
vty_write(vty, &vty->buf[vty->cp], 1);
|
|
408
|
vty->cp++;
|
|
409
|
}
|
|
410
|
}
|
|
411
|
|
|
412
|
/* Backward character. */
|
|
413
|
static void vty_backward_char(struct vty *vty)
|
|
414
|
{
|
|
415
|
if (vty->cp > 0) {
|
|
416
|
vty->cp--;
|
|
417
|
vty_write(vty, &telnet_backward_char, 1);
|
|
418
|
}
|
|
419
|
}
|
|
420
|
|
|
421
|
/* Move to the beginning of the line. */
|
|
422
|
static void vty_beginning_of_line(struct vty *vty)
|
|
423
|
{
|
|
424
|
while (vty->cp)
|
|
425
|
vty_backward_char(vty);
|
|
426
|
}
|
|
427
|
|
|
428
|
/* Move to the end of the line. */
|
|
429
|
static void vty_end_of_line(struct vty *vty)
|
|
430
|
{
|
|
431
|
while (vty->cp < vty->length)
|
|
432
|
vty_forward_char(vty);
|
|
433
|
}
|
|
434
|
|
|
435
|
/* Add current command line to the history buffer. */
|
|
436
|
static void vty_hist_add(struct vty *vty)
|
|
437
|
{
|
|
438
|
int index;
|
|
439
|
|
|
440
|
if (vty->length == 0)
|
|
441
|
return;
|
|
442
|
|
|
443
|
index = vty->hindex ? vty->hindex - 1 : VTY_MAXHIST - 1;
|
|
444
|
|
|
445
|
/* Ignore the same string as previous one. */
|
|
446
|
if (vty->hist[index])
|
|
447
|
if (strcmp(vty->buf, vty->hist[index]) == 0) {
|
|
448
|
vty->hp = vty->hindex;
|
|
449
|
return;
|
|
450
|
}
|
|
451
|
|
|
452
|
/* Insert history entry. */
|
|
453
|
if (vty->hist[vty->hindex])
|
|
454
|
free(vty->hist[vty->hindex]);
|
|
455
|
vty->hist[vty->hindex] = strdup(vty->buf);
|
|
456
|
|
|
457
|
/* History index rotation. */
|
|
458
|
vty->hindex++;
|
|
459
|
if (vty->hindex == VTY_MAXHIST)
|
|
460
|
vty->hindex = 0;
|
|
461
|
|
|
462
|
vty->hp = vty->hindex;
|
|
463
|
}
|
|
464
|
|
|
465
|
/* Execute current command line. */
|
|
466
|
static int vty_execute(struct vty *vty)
|
|
467
|
{
|
|
468
|
int ret;
|
|
469
|
|
|
470
|
ret = CMD_SUCCESS;
|
|
471
|
|
|
472
|
switch (vty->node) {
|
|
473
|
case AUTH_NODE:
|
|
474
|
case AUTH_ENABLE_NODE:
|
|
475
|
vty_auth(vty, vty->buf);
|
|
476
|
break;
|
|
477
|
default:
|
|
478
|
ret = vty_command(vty, vty->buf);
|
|
479
|
if (vty->type == VTY_TERM)
|
|
480
|
vty_hist_add(vty);
|
|
481
|
break;
|
|
482
|
}
|
|
483
|
|
|
484
|
/* Clear command line buffer. */
|
|
485
|
vty->cp = vty->length = 0;
|
|
486
|
vty_clear_buf(vty);
|
|
487
|
|
|
488
|
if (vty->status != VTY_CLOSE)
|
|
489
|
vty_prompt(vty);
|
|
490
|
|
|
491
|
return ret;
|
|
492
|
}
|
|
493
|
|
|
494
|
static void vty_kill_line_from_beginning(struct vty *);
|
|
495
|
static void vty_redraw_line(struct vty *);
|
|
496
|
|
|
497
|
/* Print command line history. This function is called from
|
|
498
|
vty_next_line and vty_previous_line. */
|
|
499
|
static void vty_history_print(struct vty *vty)
|
|
500
|
{
|
|
501
|
int length;
|
|
502
|
|
|
503
|
vty_kill_line_from_beginning(vty);
|
|
504
|
|
|
505
|
/* Get previous line from history buffer */
|
|
506
|
length = strlen(vty->hist[vty->hp]);
|
|
507
|
memcpy(vty->buf, vty->hist[vty->hp], length);
|
|
508
|
vty->cp = vty->length = length;
|
|
509
|
|
|
510
|
/* Redraw current line */
|
|
511
|
vty_redraw_line(vty);
|
|
512
|
}
|
|
513
|
|
|
514
|
/* Show next command line history. */
|
|
515
|
static void vty_next_line(struct vty *vty)
|
|
516
|
{
|
|
517
|
int try_index;
|
|
518
|
|
|
519
|
if (vty->hp == vty->hindex)
|
|
520
|
return;
|
|
521
|
|
|
522
|
/* Try is there history exist or not. */
|
|
523
|
try_index = vty->hp;
|
|
524
|
if (try_index == (VTY_MAXHIST - 1))
|
|
525
|
try_index = 0;
|
|
526
|
else
|
|
527
|
try_index++;
|
|
528
|
|
|
529
|
/* If there is not history return. */
|
|
530
|
if (vty->hist[try_index] == NULL)
|
|
531
|
return;
|
|
532
|
else
|
|
533
|
vty->hp = try_index;
|
|
534
|
|
|
535
|
vty_history_print(vty);
|
|
536
|
}
|
|
537
|
|
|
538
|
/* Show previous command line history. */
|
|
539
|
static void vty_previous_line(struct vty *vty)
|
|
540
|
{
|
|
541
|
int try_index;
|
|
542
|
|
|
543
|
try_index = vty->hp;
|
|
544
|
if (try_index == 0)
|
|
545
|
try_index = VTY_MAXHIST - 1;
|
|
546
|
else
|
|
547
|
try_index--;
|
|
548
|
|
|
549
|
if (vty->hist[try_index] == NULL)
|
|
550
|
return;
|
|
551
|
else
|
|
552
|
vty->hp = try_index;
|
|
553
|
|
|
554
|
vty_history_print(vty);
|
|
555
|
}
|
|
556
|
|
|
557
|
/* This function redraw all of the command line character. */
|
|
558
|
static void vty_redraw_line(struct vty *vty)
|
|
559
|
{
|
|
560
|
vty_write(vty, vty->buf, vty->length);
|
|
561
|
vty->cp = vty->length;
|
|
562
|
}
|
|
563
|
|
|
564
|
/* Forward word. */
|
|
565
|
static void vty_forward_word(struct vty *vty)
|
|
566
|
{
|
|
567
|
while (vty->cp != vty->length && vty->buf[vty->cp] != ' ')
|
|
568
|
vty_forward_char(vty);
|
|
569
|
|
|
570
|
while (vty->cp != vty->length && vty->buf[vty->cp] == ' ')
|
|
571
|
vty_forward_char(vty);
|
|
572
|
}
|
|
573
|
|
|
574
|
/* Backward word without skipping training space. */
|
|
575
|
static void vty_backward_pure_word(struct vty *vty)
|
|
576
|
{
|
|
577
|
while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ')
|
|
578
|
vty_backward_char(vty);
|
|
579
|
}
|
|
580
|
|
|
581
|
/* Backward word. */
|
|
582
|
static void vty_backward_word(struct vty *vty)
|
|
583
|
{
|
|
584
|
while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ')
|
|
585
|
vty_backward_char(vty);
|
|
586
|
|
|
587
|
while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ')
|
|
588
|
vty_backward_char(vty);
|
|
589
|
}
|
|
590
|
|
|
591
|
/* When '^D' is typed at the beginning of the line we move to the down
|
|
592
|
level. */
|
|
593
|
static void vty_down_level(struct vty *vty)
|
|
594
|
{
|
|
595
|
vty_out(vty, "%s", VTY_NEWLINE);
|
|
596
|
(*config_exit_cmd.func) (NULL, vty, 0, NULL);
|
|
597
|
vty_prompt(vty);
|
|
598
|
vty->cp = 0;
|
|
599
|
}
|
|
600
|
|
|
601
|
/* When '^Z' is received from vty, move down to the enable mode. */
|
|
602
|
static void vty_end_config(struct vty *vty)
|
|
603
|
{
|
|
604
|
vty_out(vty, "%s", VTY_NEWLINE);
|
|
605
|
|
|
606
|
switch (vty->node) {
|
|
607
|
case VIEW_NODE:
|
|
608
|
case ENABLE_NODE:
|
|
609
|
/* Nothing to do. */
|
|
610
|
break;
|
|
611
|
case CONFIG_NODE:
|
|
612
|
case INTERFACE_NODE:
|
|
613
|
case ZEBRA_NODE:
|
|
614
|
case RIP_NODE:
|
|
615
|
case RIPNG_NODE:
|
|
616
|
case BGP_NODE:
|
|
617
|
case BGP_VPNV4_NODE:
|
|
618
|
case BGP_IPV4_NODE:
|
|
619
|
case BGP_IPV4M_NODE:
|
|
620
|
case BGP_IPV6_NODE:
|
|
621
|
case RMAP_NODE:
|
|
622
|
case OSPF_NODE:
|
|
623
|
case OSPF6_NODE:
|
|
624
|
case ISIS_NODE:
|
|
625
|
case KEYCHAIN_NODE:
|
|
626
|
case KEYCHAIN_KEY_NODE:
|
|
627
|
case MASC_NODE:
|
|
628
|
case VTY_NODE:
|
|
629
|
vty_config_unlock(vty);
|
|
630
|
vty->node = ENABLE_NODE;
|
|
631
|
break;
|
|
632
|
default:
|
|
633
|
/* Unknown node, we have to ignore it. */
|
|
634
|
break;
|
|
635
|
}
|
|
636
|
|
|
637
|
vty_prompt(vty);
|
|
638
|
vty->cp = 0;
|
|
639
|
}
|
|
640
|
|
|
641
|
/* Delete a charcter at the current point. */
|
|
642
|
static void vty_delete_char(struct vty *vty)
|
|
643
|
{
|
|
644
|
int i;
|
|
645
|
int size;
|
|
646
|
|
|
647
|
if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE)
|
|
648
|
return;
|
|
649
|
|
|
650
|
if (vty->length == 0) {
|
|
651
|
vty_down_level(vty);
|
|
652
|
return;
|
|
653
|
}
|
|
654
|
|
|
655
|
if (vty->cp == vty->length)
|
|
656
|
return; /* completion need here? */
|
|
657
|
|
|
658
|
size = vty->length - vty->cp;
|
|
659
|
|
|
660
|
vty->length--;
|
|
661
|
memmove(&vty->buf[vty->cp], &vty->buf[vty->cp + 1], size - 1);
|
|
662
|
vty->buf[vty->length] = '\0';
|
|
663
|
|
|
664
|
vty_write(vty, &vty->buf[vty->cp], size - 1);
|
|
665
|
vty_write(vty, &telnet_space_char, 1);
|
|
666
|
|
|
667
|
for (i = 0; i < size; i++)
|
|
668
|
vty_write(vty, &telnet_backward_char, 1);
|
|
669
|
}
|
|
670
|
|
|
671
|
/* Delete a character before the point. */
|
|
672
|
static void vty_delete_backward_char(struct vty *vty)
|
|
673
|
{
|
|
674
|
if (vty->cp == 0)
|
|
675
|
return;
|
|
676
|
|
|
677
|
vty_backward_char(vty);
|
|
678
|
vty_delete_char(vty);
|
|
679
|
}
|
|
680
|
|
|
681
|
/* Kill rest of line from current point. */
|
|
682
|
static void vty_kill_line(struct vty *vty)
|
|
683
|
{
|
|
684
|
int i;
|
|
685
|
int size;
|
|
686
|
|
|
687
|
size = vty->length - vty->cp;
|
|
688
|
|
|
689
|
if (size == 0)
|
|
690
|
return;
|
|
691
|
|
|
692
|
for (i = 0; i < size; i++)
|
|
693
|
vty_write(vty, &telnet_space_char, 1);
|
|
694
|
for (i = 0; i < size; i++)
|
|
695
|
vty_write(vty, &telnet_backward_char, 1);
|
|
696
|
|
|
697
|
memset(&vty->buf[vty->cp], 0, size);
|
|
698
|
vty->length = vty->cp;
|
|
699
|
}
|
|
700
|
|
|
701
|
/* Kill line from the beginning. */
|
|
702
|
static void vty_kill_line_from_beginning(struct vty *vty)
|
|
703
|
{
|
|
704
|
vty_beginning_of_line(vty);
|
|
705
|
vty_kill_line(vty);
|
|
706
|
}
|
|
707
|
|
|
708
|
/* Delete a word before the point. */
|
|
709
|
static void vty_forward_kill_word(struct vty *vty)
|
|
710
|
{
|
|
711
|
while (vty->cp != vty->length && vty->buf[vty->cp] == ' ')
|
|
712
|
vty_delete_char(vty);
|
|
713
|
while (vty->cp != vty->length && vty->buf[vty->cp] != ' ')
|
|
714
|
vty_delete_char(vty);
|
|
715
|
}
|
|
716
|
|
|
717
|
/* Delete a word before the point. */
|
|
718
|
static void vty_backward_kill_word(struct vty *vty)
|
|
719
|
{
|
|
720
|
while (vty->cp > 0 && vty->buf[vty->cp - 1] == ' ')
|
|
721
|
vty_delete_backward_char(vty);
|
|
722
|
while (vty->cp > 0 && vty->buf[vty->cp - 1] != ' ')
|
|
723
|
vty_delete_backward_char(vty);
|
|
724
|
}
|
|
725
|
|
|
726
|
/* Transpose chars before or at the point. */
|
|
727
|
static void vty_transpose_chars(struct vty *vty)
|
|
728
|
{
|
|
729
|
char c1, c2;
|
|
730
|
|
|
731
|
/* If length is short or point is near by the beginning of line then
|
|
732
|
return. */
|
|
733
|
if (vty->length < 2 || vty->cp < 1)
|
|
734
|
return;
|
|
735
|
|
|
736
|
/* In case of point is located at the end of the line. */
|
|
737
|
if (vty->cp == vty->length) {
|
|
738
|
c1 = vty->buf[vty->cp - 1];
|
|
739
|
c2 = vty->buf[vty->cp - 2];
|
|
740
|
|
|
741
|
vty_backward_char(vty);
|
|
742
|
vty_backward_char(vty);
|
|
743
|
vty_self_insert_overwrite(vty, c1);
|
|
744
|
vty_self_insert_overwrite(vty, c2);
|
|
745
|
} else {
|
|
746
|
c1 = vty->buf[vty->cp];
|
|
747
|
c2 = vty->buf[vty->cp - 1];
|
|
748
|
|
|
749
|
vty_backward_char(vty);
|
|
750
|
vty_self_insert_overwrite(vty, c1);
|
|
751
|
vty_self_insert_overwrite(vty, c2);
|
|
752
|
}
|
|
753
|
}
|
|
754
|
|
|
755
|
/* Do completion at vty interface. */
|
|
756
|
static void vty_complete_command(struct vty *vty)
|
|
757
|
{
|
|
758
|
int i;
|
|
759
|
int ret;
|
|
760
|
char **matched = NULL;
|
|
761
|
vector vline;
|
|
762
|
|
|
763
|
if (vty->node == AUTH_NODE || vty->node == AUTH_ENABLE_NODE)
|
|
764
|
return;
|
|
765
|
|
|
766
|
vline = cmd_make_strvec(vty->buf);
|
|
767
|
if (vline == NULL)
|
|
768
|
return;
|
|
769
|
|
|
770
|
/* In case of 'help \t'. */
|
|
771
|
if (isspace((int)vty->buf[vty->length - 1]))
|
|
772
|
vector_set(vline, '\0');
|
|
773
|
|
|
774
|
matched = cmd_complete_command(vline, vty, &ret);
|
|
775
|
|
|
776
|
cmd_free_strvec(vline);
|
|
777
|
|
|
778
|
vty_out(vty, "%s", VTY_NEWLINE);
|
|
779
|
switch (ret) {
|
|
780
|
case CMD_ERR_AMBIGUOUS:
|
|
781
|
vty_out(vty, "%% Ambiguous command.%s", VTY_NEWLINE);
|
|
782
|
vty_prompt(vty);
|
|
783
|
vty_redraw_line(vty);
|
|
784
|
break;
|
|
785
|
case CMD_ERR_NO_MATCH:
|
|
786
|
/* vty_out (vty, "%% There is no matched command.%s", VTY_NEWLINE); */
|
|
787
|
vty_prompt(vty);
|
|
788
|
vty_redraw_line(vty);
|
|
789
|
break;
|
|
790
|
case CMD_COMPLETE_FULL_MATCH:
|
|
791
|
vty_prompt(vty);
|
|
792
|
vty_redraw_line(vty);
|
|
793
|
vty_backward_pure_word(vty);
|
|
794
|
vty_insert_word_overwrite(vty, matched[0]);
|
|
795
|
vty_self_insert(vty, ' ');
|
|
796
|
free(matched[0]);
|
|
797
|
break;
|
|
798
|
case CMD_COMPLETE_MATCH:
|
|
799
|
vty_prompt(vty);
|
|
800
|
vty_redraw_line(vty);
|
|
801
|
vty_backward_pure_word(vty);
|
|
802
|
vty_insert_word_overwrite(vty, matched[0]);
|
|
803
|
free(matched[0]);
|
|
804
|
vector_only_index_free(matched);
|
|
805
|
return;
|
|
806
|
break;
|
|
807
|
case CMD_COMPLETE_LIST_MATCH:
|
|
808
|
for (i = 0; matched[i] != NULL; i++) {
|
|
809
|
if (i != 0 && ((i % 6) == 0))
|
|
810
|
vty_out(vty, "%s", VTY_NEWLINE);
|
|
811
|
vty_out(vty, "%-10s ", matched[i]);
|
|
812
|
free(matched[i]);
|
|
813
|
}
|
|
814
|
vty_out(vty, "%s", VTY_NEWLINE);
|
|
815
|
|
|
816
|
vty_prompt(vty);
|
|
817
|
vty_redraw_line(vty);
|
|
818
|
break;
|
|
819
|
case CMD_ERR_NOTHING_TODO:
|
|
820
|
vty_prompt(vty);
|
|
821
|
vty_redraw_line(vty);
|
|
822
|
break;
|
|
823
|
default:
|
|
824
|
break;
|
|
825
|
}
|
|
826
|
if (matched)
|
|
827
|
vector_only_index_free(matched);
|
|
828
|
}
|
|
829
|
|
|
830
|
static void
|
|
831
|
vty_describe_fold(struct vty *vty, int cmd_width,
|
|
832
|
unsigned int desc_width, struct desc *desc)
|
|
833
|
{
|
|
834
|
char *buf;
|
|
835
|
const char *cmd, *p;
|
|
836
|
int pos;
|
|
837
|
|
|
838
|
cmd = desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd;
|
|
839
|
|
|
840
|
if (desc_width <= 0) {
|
|
841
|
vty_out(vty, " %-*s %s%s", cmd_width, cmd, desc->str,
|
|
842
|
VTY_NEWLINE);
|
|
843
|
return;
|
|
844
|
}
|
|
845
|
|
|
846
|
buf = calloc(1, strlen(desc->str) + 1);
|
|
847
|
if (!buf)
|
|
848
|
return;
|
|
849
|
|
|
850
|
for (p = desc->str; strlen(p) > desc_width; p += pos + 1) {
|
|
851
|
for (pos = desc_width; pos > 0; pos--)
|
|
852
|
if (*(p + pos) == ' ')
|
|
853
|
break;
|
|
854
|
|
|
855
|
if (pos == 0)
|
|
856
|
break;
|
|
857
|
|
|
858
|
strncpy(buf, p, pos);
|
|
859
|
buf[pos] = '\0';
|
|
860
|
vty_out(vty, " %-*s %s%s", cmd_width, cmd, buf, VTY_NEWLINE);
|
|
861
|
|
|
862
|
cmd = "";
|
|
863
|
}
|
|
864
|
|
|
865
|
vty_out(vty, " %-*s %s%s", cmd_width, cmd, p, VTY_NEWLINE);
|
|
866
|
|
|
867
|
free(buf);
|
|
868
|
}
|
|
869
|
|
|
870
|
/* Describe matched command function. */
|
|
871
|
static void vty_describe_command(struct vty *vty)
|
|
872
|
{
|
|
873
|
int ret;
|
|
874
|
vector vline;
|
|
875
|
vector describe;
|
|
876
|
unsigned int i, width, desc_width;
|
|
877
|
struct desc *desc, *desc_cr = NULL;
|
|
878
|
|
|
879
|
vline = cmd_make_strvec(vty->buf);
|
|
880
|
|
|
881
|
/* In case of '> ?'. */
|
|
882
|
if (vline == NULL) {
|
|
883
|
vline = vector_init(1);
|
|
884
|
vector_set(vline, '\0');
|
|
885
|
} else if (isspace((int)vty->buf[vty->length - 1]))
|
|
886
|
vector_set(vline, '\0');
|
|
887
|
|
|
888
|
describe = cmd_describe_command(vline, vty, &ret);
|
|
889
|
|
|
890
|
vty_out(vty, "%s", VTY_NEWLINE);
|
|
891
|
|
|
892
|
/* Ambiguous error. */
|
|
893
|
switch (ret) {
|
|
894
|
case CMD_ERR_AMBIGUOUS:
|
|
895
|
cmd_free_strvec(vline);
|
|
896
|
vty_out(vty, "%% Ambiguous command.%s", VTY_NEWLINE);
|
|
897
|
vty_prompt(vty);
|
|
898
|
vty_redraw_line(vty);
|
|
899
|
return;
|
|
900
|
break;
|
|
901
|
case CMD_ERR_NO_MATCH:
|
|
902
|
cmd_free_strvec(vline);
|
|
903
|
vty_out(vty, "%% There is no matched command.%s", VTY_NEWLINE);
|
|
904
|
vty_prompt(vty);
|
|
905
|
vty_redraw_line(vty);
|
|
906
|
return;
|
|
907
|
break;
|
|
908
|
}
|
|
909
|
|
|
910
|
/* Get width of command string. */
|
|
911
|
width = 0;
|
|
912
|
for (i = 0; i < vector_active(describe); i++)
|
|
913
|
if ((desc = vector_slot(describe, i)) != NULL) {
|
|
914
|
unsigned int len;
|
|
915
|
|
|
916
|
if (desc->cmd[0] == '\0')
|
|
917
|
continue;
|
|
918
|
|
|
919
|
len = strlen(desc->cmd);
|
|
920
|
if (desc->cmd[0] == '.')
|
|
921
|
len--;
|
|
922
|
|
|
923
|
if (width < len)
|
|
924
|
width = len;
|
|
925
|
}
|
|
926
|
|
|
927
|
/* Get width of description string. */
|
|
928
|
desc_width = vty->width - (width + 6);
|
|
929
|
|
|
930
|
/* Print out description. */
|
|
931
|
for (i = 0; i < vector_active(describe); i++)
|
|
932
|
if ((desc = vector_slot(describe, i)) != NULL) {
|
|
933
|
if (desc->cmd[0] == '\0')
|
|
934
|
continue;
|
|
935
|
|
|
936
|
if (strcmp(desc->cmd, "<cr>") == 0) {
|
|
937
|
desc_cr = desc;
|
|
938
|
continue;
|
|
939
|
}
|
|
940
|
|
|
941
|
if (!desc->str)
|
|
942
|
vty_out(vty, " %-s%s",
|
|
943
|
desc->cmd[0] ==
|
|
944
|
'.' ? desc->cmd + 1 : desc->cmd,
|
|
945
|
VTY_NEWLINE);
|
|
946
|
else if (desc_width >= strlen(desc->str))
|
|
947
|
vty_out(vty, " %-*s %s%s", width,
|
|
948
|
desc->cmd[0] ==
|
|
949
|
'.' ? desc->cmd + 1 : desc->cmd,
|
|
950
|
desc->str, VTY_NEWLINE);
|
|
951
|
else
|
|
952
|
vty_describe_fold(vty, width, desc_width, desc);
|
|
953
|
|
|
954
|
#if 0
|
|
955
|
vty_out(vty, " %-*s %s%s", width
|
|
956
|
desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd,
|
|
957
|
desc->str ? desc->str : "", VTY_NEWLINE);
|
|
958
|
#endif /* 0 */
|
|
959
|
}
|
|
960
|
|
|
961
|
if ((desc = desc_cr)) {
|
|
962
|
if (!desc->str)
|
|
963
|
vty_out(vty, " %-s%s",
|
|
964
|
desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd,
|
|
965
|
VTY_NEWLINE);
|
|
966
|
else if (desc_width >= strlen(desc->str))
|
|
967
|
vty_out(vty, " %-*s %s%s", width,
|
|
968
|
desc->cmd[0] == '.' ? desc->cmd + 1 : desc->cmd,
|
|
969
|
desc->str, VTY_NEWLINE);
|
|
970
|
else
|
|
971
|
vty_describe_fold(vty, width, desc_width, desc);
|
|
972
|
}
|
|
973
|
|
|
974
|
cmd_free_strvec(vline);
|
|
975
|
vector_free(describe);
|
|
976
|
|
|
977
|
vty_prompt(vty);
|
|
978
|
vty_redraw_line(vty);
|
|
979
|
}
|
|
980
|
|
|
981
|
/* ^C stop current input and do not add command line to the history. */
|
|
982
|
static void vty_stop_input(struct vty *vty)
|
|
983
|
{
|
|
984
|
vty->cp = vty->length = 0;
|
|
985
|
vty_clear_buf(vty);
|
|
986
|
vty_out(vty, "%s", VTY_NEWLINE);
|
|
987
|
|
|
988
|
switch (vty->node) {
|
|
989
|
case VIEW_NODE:
|
|
990
|
case ENABLE_NODE:
|
|
991
|
/* Nothing to do. */
|
|
992
|
break;
|
|
993
|
case CONFIG_NODE:
|
|
994
|
case INTERFACE_NODE:
|
|
995
|
case ZEBRA_NODE:
|
|
996
|
case RIP_NODE:
|
|
997
|
case RIPNG_NODE:
|
|
998
|
case BGP_NODE:
|
|
999
|
case RMAP_NODE:
|
|
1000
|
case OSPF_NODE:
|
|
1001
|
case OSPF6_NODE:
|
|
1002
|
case ISIS_NODE:
|
|
1003
|
case KEYCHAIN_NODE:
|
|
1004
|
case KEYCHAIN_KEY_NODE:
|
|
1005
|
case MASC_NODE:
|
|
1006
|
case VTY_NODE:
|
|
1007
|
vty_config_unlock(vty);
|
|
1008
|
vty->node = ENABLE_NODE;
|
|
1009
|
break;
|
|
1010
|
default:
|
|
1011
|
/* Unknown node, we have to ignore it. */
|
|
1012
|
break;
|
|
1013
|
}
|
|
1014
|
vty_prompt(vty);
|
|
1015
|
|
|
1016
|
/* Set history pointer to the latest one. */
|
|
1017
|
vty->hp = vty->hindex;
|
|
1018
|
}
|
|
1019
|
|
|
1020
|
#define CONTROL(X) ((X) - '@')
|
|
1021
|
#define VTY_NORMAL 0
|
|
1022
|
#define VTY_PRE_ESCAPE 1
|
|
1023
|
#define VTY_ESCAPE 2
|
|
1024
|
|
|
1025
|
/* Escape character command map. */
|
|
1026
|
static void vty_escape_map(unsigned char c, struct vty *vty)
|
|
1027
|
{
|
|
1028
|
switch (c) {
|
|
1029
|
case ('A'):
|
|
1030
|
vty_previous_line(vty);
|
|
1031
|
break;
|
|
1032
|
case ('B'):
|
|
1033
|
vty_next_line(vty);
|
|
1034
|
break;
|
|
1035
|
case ('C'):
|
|
1036
|
vty_forward_char(vty);
|
|
1037
|
break;
|
|
1038
|
case ('D'):
|
|
1039
|
vty_backward_char(vty);
|
|
1040
|
break;
|
|
1041
|
default:
|
|
1042
|
break;
|
|
1043
|
}
|
|
1044
|
|
|
1045
|
/* Go back to normal mode. */
|
|
1046
|
vty->escape = VTY_NORMAL;
|
|
1047
|
}
|
|
1048
|
|
|
1049
|
/* Quit print out to the buffer. */
|
|
1050
|
static void vty_buffer_reset(struct vty *vty)
|
|
1051
|
{
|
|
1052
|
buffer_reset(vty->obuf);
|
|
1053
|
vty_prompt(vty);
|
|
1054
|
vty_redraw_line(vty);
|
|
1055
|
}
|
|
1056
|
|
|
1057
|
/* Read data via vty socket. */
|
|
1058
|
int vty_read(struct vty *vty)
|
|
1059
|
{
|
|
1060
|
int i;
|
|
1061
|
int nbytes;
|
|
1062
|
unsigned char buf[VTY_READ_BUFSIZ];
|
|
1063
|
|
|
1064
|
int vty_sock = 0;
|
|
1065
|
|
|
1066
|
/* Read raw data from socket */
|
|
1067
|
if ((nbytes = read(vty->fd, buf, VTY_READ_BUFSIZ)) <= 0) {
|
|
1068
|
if (nbytes < 0) {
|
|
1069
|
if (ERRNO_IO_RETRY(errno)) {
|
|
1070
|
vty_event(VTY_READ, vty_sock, vty);
|
|
1071
|
return 0;
|
|
1072
|
}
|
|
1073
|
}
|
|
1074
|
buffer_reset(vty->obuf);
|
|
1075
|
vty->status = VTY_CLOSE;
|
|
1076
|
}
|
|
1077
|
|
|
1078
|
for (i = 0; i < nbytes; i++) {
|
|
1079
|
#if 0
|
|
1080
|
if (buf[i] == IAC) {
|
|
1081
|
if (!vty->iac) {
|
|
1082
|
vty->iac = 1;
|
|
1083
|
continue;
|
|
1084
|
} else {
|
|
1085
|
vty->iac = 0;
|
|
1086
|
}
|
|
1087
|
}
|
|
1088
|
|
|
1089
|
if (vty->iac_sb_in_progress && !vty->iac) {
|
|
1090
|
if (vty->sb_len < sizeof(vty->sb_buf))
|
|
1091
|
vty->sb_buf[vty->sb_len] = buf[i];
|
|
1092
|
vty->sb_len++;
|
|
1093
|
continue;
|
|
1094
|
}
|
|
1095
|
|
|
1096
|
if (vty->iac) {
|
|
1097
|
/* In case of telnet command */
|
|
1098
|
int ret = 0;
|
|
1099
|
ret = vty_telnet_option(vty, buf + i, nbytes - i);
|
|
1100
|
vty->iac = 0;
|
|
1101
|
i += ret;
|
|
1102
|
continue;
|
|
1103
|
}
|
|
1104
|
#endif
|
|
1105
|
|
|
1106
|
if (vty->status == VTY_MORE) {
|
|
1107
|
switch (buf[i]) {
|
|
1108
|
case CONTROL('C'):
|
|
1109
|
case 'q':
|
|
1110
|
case 'Q':
|
|
1111
|
vty_buffer_reset(vty);
|
|
1112
|
break;
|
|
1113
|
#if 0 /* More line does not work for "show ip bgp". */
|
|
1114
|
case '\n':
|
|
1115
|
case '\r':
|
|
1116
|
vty->status = VTY_MORELINE;
|
|
1117
|
break;
|
|
1118
|
#endif
|
|
1119
|
default:
|
|
1120
|
break;
|
|
1121
|
}
|
|
1122
|
continue;
|
|
1123
|
}
|
|
1124
|
|
|
1125
|
/* Escape character. */
|
|
1126
|
if (vty->escape == VTY_ESCAPE) {
|
|
1127
|
vty_escape_map(buf[i], vty);
|
|
1128
|
continue;
|
|
1129
|
}
|
|
1130
|
|
|
1131
|
/* Pre-escape status. */
|
|
1132
|
if (vty->escape == VTY_PRE_ESCAPE) {
|
|
1133
|
switch (buf[i]) {
|
|
1134
|
case '[':
|
|
1135
|
vty->escape = VTY_ESCAPE;
|
|
1136
|
break;
|
|
1137
|
case 'b':
|
|
1138
|
vty_backward_word(vty);
|
|
1139
|
vty->escape = VTY_NORMAL;
|
|
1140
|
break;
|
|
1141
|
case 'f':
|
|
1142
|
vty_forward_word(vty);
|
|
1143
|
vty->escape = VTY_NORMAL;
|
|
1144
|
break;
|
|
1145
|
case 'd':
|
|
1146
|
vty_forward_kill_word(vty);
|
|
1147
|
vty->escape = VTY_NORMAL;
|
|
1148
|
break;
|
|
1149
|
case CONTROL('H'):
|
|
1150
|
case 0x7f:
|
|
1151
|
vty_backward_kill_word(vty);
|
|
1152
|
vty->escape = VTY_NORMAL;
|
|
1153
|
break;
|
|
1154
|
default:
|
|
1155
|
vty->escape = VTY_NORMAL;
|
|
1156
|
break;
|
|
1157
|
}
|
|
1158
|
continue;
|
|
1159
|
}
|
|
1160
|
|
|
1161
|
switch (buf[i]) {
|
|
1162
|
case CONTROL('A'):
|
|
1163
|
vty_beginning_of_line(vty);
|
|
1164
|
break;
|
|
1165
|
case CONTROL('B'):
|
|
1166
|
vty_backward_char(vty);
|
|
1167
|
break;
|
|
1168
|
case CONTROL('C'):
|
|
1169
|
vty_stop_input(vty);
|
|
1170
|
break;
|
|
1171
|
case CONTROL('D'):
|
|
1172
|
vty_delete_char(vty);
|
|
1173
|
break;
|
|
1174
|
case CONTROL('E'):
|
|
1175
|
vty_end_of_line(vty);
|
|
1176
|
break;
|
|
1177
|
case CONTROL('F'):
|
|
1178
|
vty_forward_char(vty);
|
|
1179
|
break;
|
|
1180
|
case CONTROL('H'):
|
|
1181
|
case 0x7f:
|
|
1182
|
vty_delete_backward_char(vty);
|
|
1183
|
break;
|
|
1184
|
case CONTROL('K'):
|
|
1185
|
vty_kill_line(vty);
|
|
1186
|
break;
|
|
1187
|
case CONTROL('N'):
|
|
1188
|
vty_next_line(vty);
|
|
1189
|
break;
|
|
1190
|
case CONTROL('P'):
|
|
1191
|
vty_previous_line(vty);
|
|
1192
|
break;
|
|
1193
|
case CONTROL('T'):
|
|
1194
|
vty_transpose_chars(vty);
|
|
1195
|
break;
|
|
1196
|
case CONTROL('U'):
|
|
1197
|
vty_kill_line_from_beginning(vty);
|
|
1198
|
break;
|
|
1199
|
case CONTROL('W'):
|
|
1200
|
vty_backward_kill_word(vty);
|
|
1201
|
break;
|
|
1202
|
case CONTROL('Z'):
|
|
1203
|
vty_end_config(vty);
|
|
1204
|
break;
|
|
1205
|
case '\n':
|
|
1206
|
case '\r':
|
|
1207
|
vty_out(vty, "%s", VTY_NEWLINE);
|
|
1208
|
vty_execute(vty);
|
|
1209
|
break;
|
|
1210
|
case '\t':
|
|
1211
|
vty_complete_command(vty);
|
|
1212
|
break;
|
|
1213
|
case '?':
|
|
1214
|
if (vty->node == AUTH_NODE
|
|
1215
|
|| vty->node == AUTH_ENABLE_NODE)
|
|
1216
|
vty_self_insert(vty, buf[i]);
|
|
1217
|
else
|
|
1218
|
vty_describe_command(vty);
|
|
1219
|
break;
|
|
1220
|
case '\033':
|
|
1221
|
if (i + 1 < nbytes && buf[i + 1] == '[') {
|
|
1222
|
vty->escape = VTY_ESCAPE;
|
|
1223
|
i++;
|
|
1224
|
} else
|
|
1225
|
vty->escape = VTY_PRE_ESCAPE;
|
|
1226
|
break;
|
|
1227
|
default:
|
|
1228
|
if (buf[i] > 31 && buf[i] < 127)
|
|
1229
|
vty_self_insert(vty, buf[i]);
|
|
1230
|
break;
|
|
1231
|
}
|
|
1232
|
}
|
|
1233
|
|
|
1234
|
/* Check status. */
|
|
1235
|
if (vty->status == VTY_CLOSE)
|
|
1236
|
vty_close(vty);
|
|
1237
|
else {
|
|
1238
|
vty_event(VTY_WRITE, vty_sock, vty);
|
|
1239
|
vty_event(VTY_READ, vty_sock, vty);
|
|
1240
|
}
|
|
1241
|
return 0;
|
|
1242
|
}
|
|
1243
|
|
|
1244
|
/* Create new vty structure. */
|
|
1245
|
struct vty *
|
|
1246
|
vty_create (int vty_sock)
|
|
1247
|
{
|
|
1248
|
struct vty *vty;
|
|
1249
|
|
|
1250
|
struct termios t;
|
|
1251
|
|
|
1252
|
tcgetattr(vty_sock, &t);
|
|
1253
|
cfmakeraw(&t);
|
|
1254
|
tcsetattr(vty_sock, TCSANOW, &t);
|
|
1255
|
|
|
1256
|
/* Allocate new vty structure and set up default values. */
|
|
1257
|
vty = vty_new ();
|
|
1258
|
vty->fd = vty_sock;
|
|
1259
|
vty->type = VTY_TERM;
|
|
1260
|
if (no_password_check)
|
|
1261
|
{
|
|
1262
|
if (host.advanced)
|
|
1263
|
vty->node = ENABLE_NODE;
|
|
1264
|
else
|
|
1265
|
vty->node = VIEW_NODE;
|
|
1266
|
}
|
|
1267
|
else
|
|
1268
|
vty->node = AUTH_NODE;
|
|
1269
|
vty->fail = 0;
|
|
1270
|
vty->cp = 0;
|
|
1271
|
vty_clear_buf (vty);
|
|
1272
|
vty->length = 0;
|
|
1273
|
memset (vty->hist, 0, sizeof (vty->hist));
|
|
1274
|
vty->hp = 0;
|
|
1275
|
vty->hindex = 0;
|
|
1276
|
vector_set_index (vtyvec, vty_sock, vty);
|
|
1277
|
vty->status = VTY_NORMAL;
|
|
1278
|
if (host.lines >= 0)
|
|
1279
|
vty->lines = host.lines;
|
|
1280
|
else
|
|
1281
|
vty->lines = -1;
|
|
1282
|
|
|
1283
|
if (! no_password_check)
|
|
1284
|
{
|
|
1285
|
/* Vty is not available if password isn't set. */
|
|
1286
|
if (host.password == NULL && host.password_encrypt == NULL)
|
|
1287
|
{
|
|
1288
|
vty_out (vty, "Vty password is not set.%s", VTY_NEWLINE);
|
|
1289
|
vty->status = VTY_CLOSE;
|
|
1290
|
vty_close (vty);
|
|
1291
|
return NULL;
|
|
1292
|
}
|
|
1293
|
}
|
|
1294
|
|
|
1295
|
/* Say hello to the world. */
|
|
1296
|
vty_hello (vty);
|
|
1297
|
if (! no_password_check)
|
|
1298
|
vty_out (vty, "%sUser Access Verification%s%s", VTY_NEWLINE, VTY_NEWLINE, VTY_NEWLINE);
|
|
1299
|
|
|
1300
|
#if 0
|
|
1301
|
/* Setting up terminal. */
|
|
1302
|
vty_will_echo (vty);
|
|
1303
|
vty_will_suppress_go_ahead (vty);
|
|
1304
|
|
|
1305
|
vty_dont_linemode (vty);
|
|
1306
|
vty_do_window_size (vty);
|
|
1307
|
/* vty_dont_lflow_ahead (vty); */
|
|
1308
|
#endif
|
|
1309
|
|
|
1310
|
vty_prompt (vty);
|
|
1311
|
|
|
1312
|
/* Add read/write thread. */
|
|
1313
|
vty_event (VTY_WRITE, vty_sock, vty);
|
|
1314
|
vty_event (VTY_READ, vty_sock, vty);
|
|
1315
|
|
|
1316
|
return vty;
|
|
1317
|
}
|
|
1318
|
|
|
1319
|
DEFUN(config_who, config_who_cmd, "who", "Display who is on vty\n")
|
|
1320
|
{
|
|
1321
|
unsigned int i;
|
|
1322
|
struct vty *v;
|
|
1323
|
|
|
1324
|
for (i = 0; i < vector_active(vtyvec); i++)
|
|
1325
|
if ((v = vector_slot(vtyvec, i)) != NULL)
|
|
1326
|
vty_out(vty, "%svty[%d] %s",
|
|
1327
|
v->config ? "*" : " ", i, VTY_NEWLINE);
|
|
1328
|
return CMD_SUCCESS;
|
|
1329
|
}
|
|
1330
|
|
|
1331
|
/* Move to vty configuration mode. */
|
|
1332
|
DEFUN(line_vty,
|
|
1333
|
line_vty_cmd,
|
|
1334
|
"line vty", "Configure a terminal line\n" "Virtual terminal\n")
|
|
1335
|
{
|
|
1336
|
vty->node = VTY_NODE;
|
|
1337
|
return CMD_SUCCESS;
|
|
1338
|
}
|
|
1339
|
|
|
1340
|
/* vty login. */
|
|
1341
|
DEFUN(vty_login, vty_login_cmd, "login", "Enable password checking\n")
|
|
1342
|
{
|
|
1343
|
no_password_check = 0;
|
|
1344
|
return CMD_SUCCESS;
|
|
1345
|
}
|
|
1346
|
|
|
1347
|
DEFUN(no_vty_login,
|
|
1348
|
no_vty_login_cmd, "no login", NO_STR "Enable password checking\n")
|
|
1349
|
{
|
|
1350
|
no_password_check = 1;
|
|
1351
|
return CMD_SUCCESS;
|
|
1352
|
}
|
|
1353
|
|
|
1354
|
DEFUN(service_advanced_vty,
|
|
1355
|
service_advanced_vty_cmd,
|
|
1356
|
"service advanced-vty",
|
|
1357
|
"Set up miscellaneous service\n" "Enable advanced mode vty interface\n")
|
|
1358
|
{
|
|
1359
|
host.advanced = 1;
|
|
1360
|
return CMD_SUCCESS;
|
|
1361
|
}
|
|
1362
|
|
|
1363
|
DEFUN(no_service_advanced_vty,
|
|
1364
|
no_service_advanced_vty_cmd,
|
|
1365
|
"no service advanced-vty",
|
|
1366
|
NO_STR
|
|
1367
|
"Set up miscellaneous service\n" "Enable advanced mode vty interface\n")
|
|
1368
|
{
|
|
1369
|
host.advanced = 0;
|
|
1370
|
return CMD_SUCCESS;
|
|
1371
|
}
|
|
1372
|
|
|
1373
|
DEFUN(terminal_monitor,
|
|
1374
|
terminal_monitor_cmd,
|
|
1375
|
"terminal monitor",
|
|
1376
|
"Set terminal line parameters\n"
|
|
1377
|
"Copy debug output to the current terminal line\n")
|
|
1378
|
{
|
|
1379
|
vty->monitor = 1;
|
|
1380
|
return CMD_SUCCESS;
|
|
1381
|
}
|
|
1382
|
|
|
1383
|
DEFUN(terminal_no_monitor,
|
|
1384
|
terminal_no_monitor_cmd,
|
|
1385
|
"terminal no monitor",
|
|
1386
|
"Set terminal line parameters\n"
|
|
1387
|
NO_STR "Copy debug output to the current terminal line\n")
|
|
1388
|
{
|
|
1389
|
vty->monitor = 0;
|
|
1390
|
return CMD_SUCCESS;
|
|
1391
|
}
|
|
1392
|
|
|
1393
|
DEFUN(show_history,
|
|
1394
|
show_history_cmd,
|
|
1395
|
"show history", SHOW_STR "Display the session command history\n")
|
|
1396
|
{
|
|
1397
|
int index;
|
|
1398
|
|
|
1399
|
for (index = vty->hindex + 1; index != vty->hindex;) {
|
|
1400
|
if (index == VTY_MAXHIST) {
|
|
1401
|
index = 0;
|
|
1402
|
continue;
|
|
1403
|
}
|
|
1404
|
|
|
1405
|
if (vty->hist[index] != NULL)
|
|
1406
|
vty_out(vty, " %s%s", vty->hist[index], VTY_NEWLINE);
|
|
1407
|
|
|
1408
|
index++;
|
|
1409
|
}
|
|
1410
|
|
|
1411
|
return CMD_SUCCESS;
|
|
1412
|
}
|
|
1413
|
|
|
1414
|
/* Display current configuration. */
|
|
1415
|
static int vty_config_write(struct vty *vty)
|
|
1416
|
{
|
|
1417
|
vty_out(vty, "line vty%s", VTY_NEWLINE);
|
|
1418
|
|
|
1419
|
/* login */
|
|
1420
|
if (no_password_check)
|
|
1421
|
vty_out(vty, " no login%s", VTY_NEWLINE);
|
|
1422
|
|
|
1423
|
vty_out(vty, "!%s", VTY_NEWLINE);
|
|
1424
|
|
|
1425
|
return CMD_SUCCESS;
|
|
1426
|
}
|
|
1427
|
|
|
1428
|
struct cmd_node vty_node = {
|
|
1429
|
VTY_NODE,
|
|
1430
|
"%s(config-line)# ",
|
|
1431
|
1,
|
|
1432
|
};
|
|
1433
|
|
|
1434
|
/* Reset all VTY status. */
|
|
1435
|
void vty_reset()
|
|
1436
|
{
|
|
1437
|
unsigned int i;
|
|
1438
|
struct vty *vty;
|
|
1439
|
struct thread *vty_serv_thread;
|
|
1440
|
|
|
1441
|
for (i = 0; i < vector_active(vtyvec); i++)
|
|
1442
|
if ((vty = vector_slot(vtyvec, i)) != NULL) {
|
|
1443
|
buffer_reset(vty->obuf);
|
|
1444
|
vty->status = VTY_CLOSE;
|
|
1445
|
vty_close(vty);
|
|
1446
|
}
|
|
1447
|
|
|
1448
|
for (i = 0; i < vector_active(Vvty_serv_thread); i++)
|
|
1449
|
if ((vty_serv_thread =
|
|
1450
|
vector_slot(Vvty_serv_thread, i)) != NULL) {
|
|
1451
|
//thread_cancel (vty_serv_thread);
|
|
1452
|
vector_slot(Vvty_serv_thread, i) = NULL;
|
|
1453
|
close(i);
|
|
1454
|
}
|
|
1455
|
}
|
|
1456
|
|
|
1457
|
static void vty_save_cwd(void)
|
|
1458
|
{
|
|
1459
|
char cwd[MAXPATHLEN];
|
|
1460
|
char *c;
|
|
1461
|
|
|
1462
|
c = getcwd(cwd, MAXPATHLEN);
|
|
1463
|
|
|
1464
|
if (!c) {
|
|
1465
|
chdir(SYSCONFDIR);
|
|
1466
|
getcwd(cwd, MAXPATHLEN);
|
|
1467
|
}
|
|
1468
|
|
|
1469
|
vty_cwd = malloc(strlen(cwd) + 1);
|
|
1470
|
strcpy(vty_cwd, cwd);
|
|
1471
|
}
|
|
1472
|
|
|
1473
|
char *vty_get_cwd()
|
|
1474
|
{
|
|
1475
|
return vty_cwd;
|
|
1476
|
}
|
|
1477
|
|
|
1478
|
int vty_shell_serv(struct vty *vty)
|
|
1479
|
{
|
|
1480
|
return vty->type == VTY_SHELL_SERV ? 1 : 0;
|
|
1481
|
}
|
|
1482
|
|
|
1483
|
void vty_init_vtysh()
|
|
1484
|
{
|
|
1485
|
vtyvec = vector_init(VECTOR_MIN_SIZE);
|
|
1486
|
}
|
|
1487
|
|
|
1488
|
/* Install vty's own commands like `who' command. */
|
|
1489
|
void vty_init()
|
|
1490
|
{
|
|
1491
|
/* For further configuration read, preserve current directory. */
|
|
1492
|
vty_save_cwd();
|
|
1493
|
|
|
1494
|
vtyvec = vector_init(VECTOR_MIN_SIZE);
|
|
1495
|
|
|
1496
|
/* Install bgp top node. */
|
|
1497
|
install_node(&vty_node, vty_config_write);
|
|
1498
|
|
|
1499
|
install_element(VIEW_NODE, &config_who_cmd);
|
|
1500
|
install_element(VIEW_NODE, &show_history_cmd);
|
|
1501
|
install_element(ENABLE_NODE, &config_who_cmd);
|
|
1502
|
install_element(CONFIG_NODE, &line_vty_cmd);
|
|
1503
|
install_element(CONFIG_NODE, &service_advanced_vty_cmd);
|
|
1504
|
install_element(CONFIG_NODE, &no_service_advanced_vty_cmd);
|
|
1505
|
install_element(CONFIG_NODE, &show_history_cmd);
|
|
1506
|
install_element(ENABLE_NODE, &terminal_monitor_cmd);
|
|
1507
|
install_element(ENABLE_NODE, &terminal_no_monitor_cmd);
|
|
1508
|
install_element(ENABLE_NODE, &show_history_cmd);
|
|
1509
|
|
|
1510
|
install_default(VTY_NODE);
|
|
1511
|
#if 0
|
|
1512
|
install_element(VTY_NODE, &vty_login_cmd);
|
|
1513
|
install_element(VTY_NODE, &no_vty_login_cmd);
|
|
1514
|
#endif
|
|
1515
|
}
|
