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13da9a6f
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(no author)
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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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14 |
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#include "zebvty.h"
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#include "vty.h"
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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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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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#ifdef VTYSH
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VTYSH_SERV,
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VTYSH_READ,
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VTYSH_WRITE
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#endif /* VTYSH */
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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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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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{
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48 |
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memset(vty->buf, 0, vty->max);
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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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struct vty *vty_new()
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{
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struct vty *new = malloc(sizeof(struct vty));
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56 |
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if (!new)
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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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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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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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68 |
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return new;
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out_obuf:
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free(new->obuf);
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out_new:
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free(new);
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new = NULL;
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out:
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return new;
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}
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79 |
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/* Authentication of vty */
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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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char *passwd = NULL;
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83 |
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enum node_type next_node = 0;
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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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87 |
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switch (vty->node) {
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case AUTH_NODE:
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if (host.encrypt)
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passwd = host.password_encrypt;
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else
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passwd = host.password;
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93 |
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if (host.advanced)
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next_node = host.enable ? VIEW_NODE : ENABLE_NODE;
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else
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next_node = VIEW_NODE;
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break;
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case AUTH_ENABLE_NODE:
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if (host.encrypt)
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passwd = host.enable_encrypt;
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else
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passwd = host.enable;
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next_node = ENABLE_NODE;
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break;
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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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else
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fail = strcmp(buf, passwd);
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} else
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fail = 1;
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114 |
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115 |
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if (!fail) {
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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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"%% Bad passwords, too many failures!%s",
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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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"%% Bad enable passwords, too many failures!%s",
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VTY_NEWLINE);
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vty->node = VIEW_NODE;
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}
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}
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}
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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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void vty_close(struct vty *vty)
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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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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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167 |
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/* OK free vty. */
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168 |
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free(vty);
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}
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170 |
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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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}
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175 |
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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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vprintf(format, args);
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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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len = vsnprintf(buf, sizeof buf, format, args);
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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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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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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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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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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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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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}
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261 |
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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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|
269 |
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f = fopen(host.motdfile, "r");
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270 |
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if (f) {
|
271 |
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while (fgets(buf, sizeof(buf), f)) {
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272 |
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char *s;
|
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);
|
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);
|
278 |
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}
|
279 |
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fclose(f);
|
280 |
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} else
|
281 |
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vty_out(vty, "MOTD file not found%s", VTY_NEWLINE);
|
282 |
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} else if (host.motd)
|
283 |
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vty_out(vty, host.motd);
|
284 |
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}
|
285 |
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|
286 |
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/* Put out prompt and wait input from user. */
|
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 |
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|
292 |
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if (vty->type == VTY_TERM) {
|
293 |
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hostname = host.name;
|
294 |
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if (!hostname) {
|
295 |
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uname(&names);
|
296 |
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hostname = names.nodename;
|
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 |
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|
302 |
|
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/* 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 |
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|
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 |
|
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|
314 |
|
|
ret = cmd_execute_command(vline, vty, NULL, 0);
|
315 |
|
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if (ret != CMD_SUCCESS)
|
316 |
|
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switch (ret) {
|
317 |
|
|
case CMD_WARNING:
|
318 |
|
|
if (vty->type == VTY_FILE)
|
319 |
|
|
vty_out(vty, "Warning...%s", VTY_NEWLINE);
|
320 |
|
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break;
|
321 |
|
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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 |
|
|
}
|