xref: /freebsd/sbin/ipf/libipf/ipf_dotuning.c (revision f81cdf24ba5436367377f7c8e8f51f6df2a75ca7)
1 
2 /*
3  * Copyright (C) 2012 by Darren Reed.
4  *
5  * See the IPFILTER.LICENCE file for details on licencing.
6  *
7  * $Id$
8  */
9 
10 #include "ipf.h"
11 #include "netinet/ipl.h"
12 #include <sys/ioctl.h>
13 
14 void ipf_dotuning(int fd, char *tuneargs, ioctlfunc_t iocfn)
15 {
16 	ipfobj_t obj;
17 	ipftune_t tu;
18 	char *s, *t;
19 
20 	bzero((char *)&tu, sizeof(tu));
21 	obj.ipfo_rev = IPFILTER_VERSION;
22 	obj.ipfo_size = sizeof(tu);
23 	obj.ipfo_ptr = (void *)&tu;
24 	obj.ipfo_type = IPFOBJ_TUNEABLE;
25 
26 	for (s = strtok(tuneargs, ","); s != NULL; s = strtok(NULL, ",")) {
27 		if (!strcmp(s, "list")) {
28 			while (1) {
29 				if ((*iocfn)(fd, SIOCIPFGETNEXT, &obj) == -1) {
30 					ipf_perror_fd(fd, iocfn,
31 						      "ioctl(SIOCIPFGETNEXT)");
32 					break;
33 				}
34 				if (tu.ipft_cookie == NULL)
35 					break;
36 
37 				tu.ipft_name[sizeof(tu.ipft_name) - 1] = '\0';
38 				printtunable(&tu);
39 			}
40 		} else if ((t = strchr(s, '=')) != NULL) {
41 			tu.ipft_cookie = NULL;
42 			*t++ = '\0';
43 			strncpy(tu.ipft_name, s, sizeof(tu.ipft_name));
44 			if (sscanf(t, "%lu", &tu.ipft_vlong) == 1) {
45 				if ((*iocfn)(fd, SIOCIPFSET, &obj) == -1) {
46 					ipf_perror_fd(fd, iocfn,
47 						      "ioctl(SIOCIPFSET)");
48 					return;
49 				}
50 			} else {
51 				fprintf(stderr, "invalid value '%s'\n", s);
52 				return;
53 			}
54 		} else {
55 			tu.ipft_cookie = NULL;
56 			strncpy(tu.ipft_name, s, sizeof(tu.ipft_name));
57 			if ((*iocfn)(fd, SIOCIPFGET, &obj) == -1) {
58 				ipf_perror_fd(fd, iocfn, "ioctl(SIOCIPFGET)");
59 				return;
60 			}
61 			if (tu.ipft_cookie == NULL) {
62 				fprintf(stderr, "Null cookie for %s\n", s);
63 				return;
64 			}
65 
66 			tu.ipft_name[sizeof(tu.ipft_name) - 1] = '\0';
67 			printtunable(&tu);
68 		}
69 	}
70 }
71