dist/ipf/samples/userauth.c

   1 /*      $NetBSD$        */
   2
   3 #include <sys/types.h>
   4 #include <sys/socket.h>
   5 #include <fcntl.h>
   6 #include <sys/ioctl.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <netinet/in.h>
  10 #include <net/if.h>
  11 #include "ip_compat.h"
  12 #include "ip_fil.h"
  13 #include "ip_auth.h"
  14
  15 extern  int     errno;
  16
  17 main()
  18 {
  19         struct frauth fra;
  20         struct frauth *frap = &fra;
  21         fr_info_t *fin = &fra.fra_info;
  22         fr_ip_t *fi = &fin->fin_fi;
  23         char yn[16];
  24         int fd;
  25
  26         fd = open(IPL_NAME, O_RDWR);
  27         fra.fra_len = 0;
  28         fra.fra_buf = NULL;
  29         while (ioctl(fd, SIOCAUTHW, &frap) == 0) {
  30                 if (fra.fra_info.fin_out)
  31                         fra.fra_pass = FR_OUTQUE;
  32                 else
  33                         fra.fra_pass = FR_INQUE;
  34
  35                 printf("%s ", inet_ntoa(fi->fi_src));
  36                 if (fi->fi_flx & FI_TCPUDP)
  37                         printf("port %d ", fin->fin_data[0]);
  38                 printf("-> %s ", inet_ntoa(fi->fi_dst));
  39                 if (fi->fi_flx & FI_TCPUDP)
  40                         printf("port %d ", fin->fin_data[1]);
  41                 printf("\n");
  42                 printf("Allow packet through ? [y/n]");
  43                 fflush(stdout);
  44                 if (!fgets(yn, sizeof(yn), stdin))
  45                         break;
  46                 fflush(stdin);
  47                 if (yn[0] == 'n' || yn[0] == 'N')
  48                         fra.fra_pass |= FR_BLOCK;
  49                 else if (yn[0] == 'y' || yn[0] == 'Y') {
  50                         fra.fra_pass |= FR_PASS;
  51                         if (fra.fra_info.fin_fi.fi_flx & FI_TCPUDP)
  52                                 fra.fra_pass |= FR_KEEPSTATE;
  53                 } else
  54                         fra.fra_pass |= FR_NOMATCH;
  55                 printf("answer = %c (%x), id %d idx %d\n", yn[0],
  56                         fra.fra_pass, fra.fra_info.fin_id, fra.fra_index);
  57                 if (ioctl(fd, SIOCAUTHR, &frap) != 0)
  58                         perror("SIOCAUTHR");
  59         }
  60         fprintf(stderr, "errno=%d \n", errno);
  61         perror("frauth-SIOCAUTHW");
  62 }