release/src/router/ipset/libipt_set.h

   1 #ifndef _LIBIPT_SET_H
   2 #define _LIBIPT_SET_H
   3
   4 #include <sys/types.h>
   5 #include <sys/socket.h>
   6 #include <errno.h>
   7
   8 static int get_set_getsockopt(void *data, size_t * size)
   9 {
  10         int sockfd = -1;
  11         sockfd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
  12         if (sockfd < 0)
  13                 exit_error(OTHER_PROBLEM,
  14                            "Can't open socket to ipset.\n");
  15         /* Send! */
  16         return getsockopt(sockfd, SOL_IP, SO_IP_SET, data, size);
  17 }
  18
  19 static void
  20 parse_bindings(const char *optarg, struct ipt_set_info *info)
  21 {
  22         char *saved = strdup(optarg);
  23         char *ptr, *tmp = saved;
  24         int i = 0;
  25
  26         while (i < IP_SET_MAX_BINDINGS && tmp != NULL) {
  27                 ptr = strsep(&tmp, ",");
  28                 if (strncmp(ptr, "src", 3) == 0)
  29                         info->flags[i++] |= IPSET_SRC;
  30                 else if (strncmp(ptr, "dst", 3) == 0)
  31                         info->flags[i++] |= IPSET_DST;
  32                 else
  33                         exit_error(PARAMETER_PROBLEM,
  34                                    "You must spefify (the comma separated list of) 'src' or 'dst'.");
  35         }
  36
  37         if (tmp)
  38                 exit_error(PARAMETER_PROBLEM,
  39                            "Can't follow bindings deeper than %d.",
  40                            IP_SET_MAX_BINDINGS);
  41
  42         free(saved);
  43 }
  44
  45 #endif /*_LIBIPT_SET_H*/