Annotation of embedtools/src/get1steth.c, revision 1.1.2.3
1.1.2.1 misho 1: #include "global.h"
1.1.2.2 misho 2: #include "get1steth.h"
1.1.2.1 misho 3:
4:
1.1.2.2 misho 5: char szIface[MAX_STR];
6: int Verbose;
7: extern char compiled[], compiledby[], compilehost[];
8:
9:
10: static void Usage()
1.1.2.1 misho 11: {
1.1.2.2 misho 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 ifreq ifr;
1.1.2.3 ! misho 28: struct vlanreq vlr;
1.1.2.2 misho 29: int s;
30:
31: while ((ch = getopt(argc, argv, "hvg")) != -1)
32: switch (ch) {
33: case 'g':
34: GetOnly = 1;
35: break;
36: case 'v':
37: Verbose++;
38: break;
39: case 'h':
40: default:
41: Usage();
42: return 1;
43: }
44: argc -= optind;
45: argv += optind;
46:
1.1.2.3 ! misho 47: openlog("get1steth", LOG_CONS | LOG_PERROR, LOG_CONSOLE | LOG_USER);
1.1.2.2 misho 48:
49: if (argc) {
50: strlcpy(szIface, *argv, MAX_STR);
51: VERB(1) syslog(LOG_NOTICE, "Info:: Get CUSTOM first interface %s\n", szIface);
52: } else {
53: getifaddrs(&ifa);
54: for (ifp = ifa; ifp; ifp = ifp->ifa_next) {
55: if (PF_LINK == ifp->ifa_addr->sa_family &&
56: IFT_ETHER == ((struct sockaddr_dl*) ifp->ifa_addr)->sdl_type) {
57: strlcpy(szIface, ifp->ifa_name, MAX_STR);
58: sdl = (struct sockaddr_dl*) ifp->ifa_addr;
59: VERB(2) syslog(LOG_NOTICE, "Info:: Get first interface=%s MAC=%s\n", szIface,
60: ether_ntoa((struct ether_addr*) LLADDR(sdl)));
61: break;
62: }
63: }
64: freeifaddrs(ifa);
65: }
66: if (GetOnly) {
67: printf("%s\n", szIface);
68:
69: closelog();
70: return 0;
71: }
72:
1.1.2.3 ! misho 73: // create vlan
1.1.2.2 misho 74: memset(&ifr, 0, sizeof ifr);
1.1.2.3 ! misho 75: strlcpy(vlr.vlr_parent, szIface, IFNAMSIZ);
! 76: vlr.vlr_tag = MGMT_VTAG;
! 77:
! 78: strlcpy(ifr.ifr_name, MGMT_IFACE, IFNAMSIZ);
! 79: ifr.ifr_data = (void *) &vlr;
1.1.2.2 misho 80:
81: s = socket(PF_LOCAL, SOCK_DGRAM, 0);
82: if (-1 == s) {
83: syslog(LOG_ERR, "Error:: socket(LOCAL) #%d - %s\n", errno, strerror(errno));
84: return 2;
85: }
86: if (ioctl(s, SIOCIFCREATE2, &ifr) == -1) {
1.1.2.3 ! misho 87: syslog(LOG_ERR, "Error:: Create interface=%s ioctl(SIOCIFCREATE2) #%d - %s\n",
! 88: MGMT_IFACE, errno, strerror(errno));
1.1.2.2 misho 89: close(s);
90: return 2;
1.1.2.3 ! misho 91: } else
! 92: VERB(2) syslog(LOG_NOTICE, "Info:: Created interface=%s\n", MGMT_IFACE);
! 93: // rename iface
! 94: ifr.ifr_data = MGMT_NAME;
! 95: if (ioctl(s, SIOCSIFNAME, &ifr) == -1) {
! 96: syslog(LOG_ERR, "Error:: Managment interface=%s ioctl(SIOCSIFNAME) #%d - %s\n",
! 97: MGMT_NAME, errno, strerror(errno));
! 98: close(s);
! 99: return 2;
! 100: } else
! 101: VERB(2) syslog(LOG_NOTICE, "Info:: Managment interface=%s\n", MGMT_NAME);
! 102: // assign address & up
! 103: ifr.ifr_flags |= IFF_UP;
1.1.2.2 misho 104:
105: close(s);
106: closelog();
1.1.2.1 misho 107: return 0;
108: }
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