/*
 * Copyright (C) 2012 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * $Id$
 */

#include "ipf.h"
#include "netinet/ipl.h"
#include <sys/ioctl.h>

void ipf_dotuning(int fd, char *tuneargs, ioctlfunc_t iocfn)
{
        ipfobj_t obj;
        ipftune_t tu;
        char *s, *t;

        bzero((char *)&tu, sizeof(tu));
        obj.ipfo_rev = IPFILTER_VERSION;
        obj.ipfo_size = sizeof(tu);
        obj.ipfo_ptr = (void *)&tu;
        obj.ipfo_type = IPFOBJ_TUNEABLE;

        for (s = strtok(tuneargs, ","); s != NULL; s = strtok(NULL, ",")) {
                if (!strcmp(s, "list")) {
                        while (1) {
                                if ((*iocfn)(fd, SIOCIPFGETNEXT, &obj) == -1) {
                                        ipf_perror_fd(fd, iocfn,
                                                      "ioctl(SIOCIPFGETNEXT)");
                                        break;
                                }
                                if (tu.ipft_cookie == NULL)
                                        break;

                                tu.ipft_name[sizeof(tu.ipft_name) - 1] = '\0';
                                printtunable(&tu);
                        }
                } else if ((t = strchr(s, '=')) != NULL) {
                        tu.ipft_cookie = NULL;
                        *t++ = '\0';
                        strncpy(tu.ipft_name, s, sizeof(tu.ipft_name));
                        if (sscanf(t, "%lu", &tu.ipft_vlong) == 1) {
                                if ((*iocfn)(fd, SIOCIPFSET, &obj) == -1) {
                                        ipf_perror_fd(fd, iocfn,
                                                      "ioctl(SIOCIPFSET)");
                                        return;
                                }
                        } else {
                                fprintf(stderr, "invalid value '%s'\n", s);
                                return;
                        }
                } else {
                        tu.ipft_cookie = NULL;
                        strncpy(tu.ipft_name, s, sizeof(tu.ipft_name));
                        if ((*iocfn)(fd, SIOCIPFGET, &obj) == -1) {
                                ipf_perror_fd(fd, iocfn, "ioctl(SIOCIPFGET)");
                                return;
                        }
                        if (tu.ipft_cookie == NULL) {
                                fprintf(stderr, "Null cookie for %s\n", s);
                                return;
                        }

                        tu.ipft_name[sizeof(tu.ipft_name) - 1] = '\0';
                        printtunable(&tu);
                }
        }
}