1 /*        $NetBSD: ipf_dotuning.c,v 1.2 2012/07/22 14:27:36 darrenr Exp $       */
2 
3 /*
4  * Copyright (C) 2012 by Darren Reed.
5  *
6  * See the IPFILTER.LICENCE file for details on licencing.
7  *
8  * Id: ipf_dotuning.c,v 1.1.1.2 2012/07/22 13:44:39 darrenr Exp $
9  */
10 
11 #include "ipf.h"
12 #include "netinet/ipl.h"
13 #include <sys/ioctl.h>
14 
ipf_dotuning(fd,tuneargs,iocfn)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 }
75