contrib/ipfilter/lib/ipf_dotuning.c

   1 /*      $FreeBSD$       */
   2
   3 /*
   4  * Copyright (C) 2012 by Darren Reed.
   5  *
   6  * See the IPFILTER.LICENCE file for details on licencing.
   7  *
   8  * $Id$
   9  */
  10
  11 #include "ipf.h"
  12 #include "netinet/ipl.h"
  13 #include <sys/ioctl.h>
  14
  15 void ipf_dotuning(fd, tuneargs, iocfn)
  16         int fd;
  17         char *tuneargs;
  18         ioctlfunc_t iocfn;
  19 {
  20         ipfobj_t obj;
  21         ipftune_t tu;
  22         char *s, *t;
  23
  24         bzero((char *)&tu, sizeof(tu));
  25         obj.ipfo_rev = IPFILTER_VERSION;
  26         obj.ipfo_size = sizeof(tu);;
  27         obj.ipfo_ptr = (void *)&tu;
  28         obj.ipfo_type = IPFOBJ_TUNEABLE;
  29
  30         for (s = strtok(tuneargs, ","); s != NULL; s = strtok(NULL, ",")) {
  31                 if (!strcmp(s, "list")) {
  32                         while (1) {
  33                                 if ((*iocfn)(fd, SIOCIPFGETNEXT, &obj) == -1) {
  34                                         ipf_perror_fd(fd, iocfn,
  35                                                       "ioctl(SIOCIPFGETNEXT)");
  36                                         break;
  37                                 }
  38                                 if (tu.ipft_cookie == NULL)
  39                                         break;
  40
  41                                 tu.ipft_name[sizeof(tu.ipft_name) - 1] = '\0';
  42                                 printtunable(&tu);
  43                         }
  44                 } else if ((t = strchr(s, '=')) != NULL) {
  45                         tu.ipft_cookie = NULL;
  46                         *t++ = '\0';
  47                         strncpy(tu.ipft_name, s, sizeof(tu.ipft_name));
  48                         if (sscanf(t, "%lu", &tu.ipft_vlong) == 1) {
  49                                 if ((*iocfn)(fd, SIOCIPFSET, &obj) == -1) {
  50                                         ipf_perror_fd(fd, iocfn,
  51                                                       "ioctl(SIOCIPFSET)");
  52                                         return;
  53                                 }
  54                         } else {
  55                                 fprintf(stderr, "invalid value '%s'\n", s);
  56                                 return;
  57                         }
  58                 } else {
  59                         tu.ipft_cookie = NULL;
  60                         strncpy(tu.ipft_name, s, sizeof(tu.ipft_name));
  61                         if ((*iocfn)(fd, SIOCIPFGET, &obj) == -1) {
  62                                 ipf_perror_fd(fd, iocfn, "ioctl(SIOCIPFGET)");
  63                                 return;
  64                         }
  65                         if (tu.ipft_cookie == NULL) {
  66                                 fprintf(stderr, "Null cookie for %s\n", s);
  67                                 return;
  68                         }
  69
  70                         tu.ipft_name[sizeof(tu.ipft_name) - 1] = '\0';
  71                         printtunable(&tu);
  72                 }
  73         }
  74 }