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fix set ip

    1: #include "global.h"
    2: #include "get1steth.h"
    3: 
    4: 
    5: char szIface[MAX_STR];
    6: int Verbose;
    7: extern char compiled[], compiledby[], compilehost[];
    8: 
    9: 
   10: static void Usage()
   11: {
   12: 	printf("-= GET_FIRST_ETHERNET =- Get First Ethernet Interface tool\n"
   13: 		"=== %s === %s@%s ===\n\n"
   14: 		"Syntax: get1steth [option] [custom_first_interface]\n\n"
   15: 		"\t-v\t\tVerbose (more -v more verbosity)\n"
   16: 		"\t-g\t\tOnly get first interface, print and exit ...\n"
   17: 		"\n", compiled, compiledby, compilehost);
   18: }
   19: 
   20: // -------------------------------
   21: 
   22: int main(int argc, char **argv)
   23: {
   24: 	char ch, GetOnly = 0;
   25: 	struct ifaddrs *ifa, *ifp;
   26: 	struct sockaddr_dl *sdl;
   27: 	struct sockaddr_in *sin;
   28: 	struct ifreq ifr;
   29: 	struct vlanreq vlr;
   30: 	struct ifaliasreq ifra;
   31: 	int s;
   32: 
   33: 	while ((ch = getopt(argc, argv, "hvg")) != -1)
   34: 		switch (ch) {
   35: 			case 'g':
   36: 				GetOnly = 1;
   37: 				break;
   38: 			case 'v':
   39: 				Verbose++;
   40: 				break;
   41: 			case 'h':
   42: 			default:
   43: 				Usage();
   44: 				return 1;
   45: 		}
   46: 	argc -= optind;
   47: 	argv += optind;
   48: 
   49: 	openlog("get1steth", LOG_CONS | LOG_PERROR, LOG_CONSOLE | LOG_USER);
   50: 
   51: 	if (argc) {
   52: 		strlcpy(szIface, *argv, MAX_STR);
   53: 		VERB(1) syslog(LOG_NOTICE, "Info:: Get CUSTOM first interface %s\n", szIface);
   54: 	} else {
   55: 		getifaddrs(&ifa);
   56: 		for (ifp = ifa; ifp; ifp = ifp->ifa_next) {
   57: 			if (PF_LINK == ifp->ifa_addr->sa_family && 
   58: 					IFT_ETHER == ((struct sockaddr_dl*) ifp->ifa_addr)->sdl_type) {
   59: 				strlcpy(szIface, ifp->ifa_name, MAX_STR);
   60: 				sdl = (struct sockaddr_dl*) ifp->ifa_addr;
   61: 				VERB(2) syslog(LOG_NOTICE, "Info:: Get first interface=%s MAC=%s\n", szIface, 
   62: 						ether_ntoa((struct ether_addr*) LLADDR(sdl)));
   63: 				break;
   64: 			}
   65: 		}
   66: 		freeifaddrs(ifa);
   67: 	}
   68: 	if (GetOnly) {
   69: 		printf("%s\n", szIface);
   70: 
   71: 		closelog();
   72: 		return 0;
   73: 	}
   74: 
   75: 	// create vlan
   76: 	memset(&ifr, 0, sizeof ifr);
   77: 	strlcpy(vlr.vlr_parent, szIface, IFNAMSIZ);
   78: 	vlr.vlr_tag = MGMT_VTAG;
   79: 
   80: 	strlcpy(ifr.ifr_name, MGMT_IFACE, IFNAMSIZ);
   81: 	ifr.ifr_data = (void *) &vlr;
   82: 
   83: 	s = socket(PF_INET, SOCK_STREAM, 0);
   84: 	if (-1 == s) {
   85: 		syslog(LOG_ERR, "Error:: socket(LOCAL) #%d - %s\n", errno, strerror(errno));
   86: 		return 2;
   87: 	}
   88: 	if (ioctl(s, SIOCIFCREATE2, &ifr) == -1 && errno != EEXIST) {
   89: 		syslog(LOG_ERR, "Error:: Create interface=%s ioctl(SIOCIFCREATE2) #%d - %s\n", 
   90: 				MGMT_IFACE, errno, strerror(errno));
   91: 		close(s);
   92: 		return 2;
   93: 	} else
   94: 		VERB(2) syslog(LOG_NOTICE, "Info:: Created interface=%s\n", MGMT_IFACE);
   95: 	// rename iface
   96: 	ifr.ifr_data = MGMT_NAME;
   97: 	if (errno != EEXIST && ioctl(s, SIOCSIFNAME, &ifr) == -1) {
   98: 		syslog(LOG_ERR, "Error:: Managment interface=%s ioctl(SIOCSIFNAME) #%d - %s\n", 
   99: 				MGMT_NAME, errno, strerror(errno));
  100: 		close(s);
  101: 		return 2;
  102: 	} else
  103: 		VERB(2) syslog(LOG_NOTICE, "Info:: Managment interface=%s\n", MGMT_NAME);
  104: 
  105: 	// assign address & up
  106: 	memset(&ifra, 0, sizeof ifra);
  107: 	strlcpy(ifra.ifra_name, MGMT_NAME, IFNAMSIZ);
  108: 	sin = (struct sockaddr_in*) &ifra.ifra_addr;
  109: 	sin->sin_len = sizeof ifra.ifra_addr;
  110: 	sin->sin_family = AF_INET;
  111: 	sin->sin_addr.s_addr = inet_addr(MGMT_ADDR);
  112: 	sin = (struct sockaddr_in*) &ifra.ifra_mask;
  113: 	sin->sin_len = sizeof ifra.ifra_mask;
  114: 	sin->sin_family = AF_INET;
  115: 	sin->sin_addr.s_addr = inet_addr(MGMT_MASK);
  116: 	if (ioctl(s, SIOCAIFADDR, &ifra) == -1) {
  117: 		syslog(LOG_ERR, "Error:: IP %s ioctl(SIOCAIFADDR) #%d - %s\n", 
  118: 				MGMT_ADDR, errno, strerror(errno));
  119: 		close(s);
  120: 		return 2;
  121: 	} else
  122: 		VERB(2) syslog(LOG_NOTICE, "Info:: IP %s\n", MGMT_ADDR);
  123: 
  124: 	close(s);
  125: 	closelog();
  126: 	return 0;
  127: }