contrib/ipfilter/samples/userauth.c

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