Annotation of embedtools/src/get1steth.c, revision 1.1.2.9
1.1.2.9 ! misho 1: /*************************************************************************
! 2: * (C) 2010 AITNET - Sofia/Bulgaria - <office@aitbg.com>
! 3: * by Michael Pounov <misho@aitbg.com>
! 4: *
! 5: * $Author: misho $
! 6: * $Id: cfexec.c,v 1.1.1.1.2.3 2009/11/12 11:51:50 misho Exp $
! 7: *
! 8: *************************************************************************/
1.1.2.1 misho 9: #include "global.h"
1.1.2.2 misho 10: #include "get1steth.h"
1.1.2.1 misho 11:
12:
1.1.2.2 misho 13: char szIface[MAX_STR];
14: int Verbose;
15: extern char compiled[], compiledby[], compilehost[];
16:
17:
18: static void Usage()
1.1.2.1 misho 19: {
1.1.2.2 misho 20: printf("-= GET_FIRST_ETHERNET =- Get First Ethernet Interface tool\n"
21: "=== %s === %s@%s ===\n\n"
22: "Syntax: get1steth [option] [custom_first_interface]\n\n"
23: "\t-v\t\tVerbose (more -v more verbosity)\n"
24: "\t-g\t\tOnly get first interface, print and exit ...\n"
25: "\n", compiled, compiledby, compilehost);
26: }
27:
1.1.2.5 misho 28: static int kldLoad()
29: {
30: struct module_stat mstat;
31: register int i, j;
32: u_char flg = 0;
33:
34: memset(&mstat, 0, sizeof mstat);
35: mstat.version = sizeof mstat;
36: for (i = kldnext(0); i > 0; i = kldnext(i))
37: for (j = kldfirstmod(i); j > 0; j = modfnext(j)) {
38: if (modstat(j, &mstat) == -1)
39: continue;
40:
41: if (!strncmp(MODVLAN, mstat.name, sizeof MODVLAN)) {
42: flg = 1;
43: break;
44: }
45: }
46: if (flg)
47: return 0;
48:
49: if (kldload(MODVLAN) == -1)
50: return -1;
51:
52: return 1;
53: }
54:
1.1.2.2 misho 55: // -------------------------------
56:
57: int main(int argc, char **argv)
58: {
59: char ch, GetOnly = 0;
60: struct ifaddrs *ifa, *ifp;
61: struct sockaddr_dl *sdl;
1.1.2.4 misho 62: struct sockaddr_in *sin;
1.1.2.2 misho 63: struct ifreq ifr;
1.1.2.3 misho 64: struct vlanreq vlr;
1.1.2.4 misho 65: struct ifaliasreq ifra;
1.1.2.6 misho 66: struct ifmediareq ifmr;
1.1.2.2 misho 67: int s;
68:
69: while ((ch = getopt(argc, argv, "hvg")) != -1)
70: switch (ch) {
71: case 'g':
72: GetOnly = 1;
73: break;
74: case 'v':
75: Verbose++;
76: break;
77: case 'h':
78: default:
79: Usage();
80: return 1;
81: }
82: argc -= optind;
83: argv += optind;
84:
1.1.2.3 misho 85: openlog("get1steth", LOG_CONS | LOG_PERROR, LOG_CONSOLE | LOG_USER);
1.1.2.2 misho 86:
87: if (argc) {
88: strlcpy(szIface, *argv, MAX_STR);
89: VERB(1) syslog(LOG_NOTICE, "Info:: Get CUSTOM first interface %s\n", szIface);
90: } else {
1.1.2.7 misho 91: s = socket(PF_INET, SOCK_DGRAM, 0);
92: if (-1 == s) {
93: syslog(LOG_ERR, "Error:: socket(INET) #%d - %s\n", errno, strerror(errno));
94: closelog();
95: return 1;
96: }
97:
1.1.2.2 misho 98: getifaddrs(&ifa);
99: for (ifp = ifa; ifp; ifp = ifp->ifa_next) {
100: if (PF_LINK == ifp->ifa_addr->sa_family &&
101: IFT_ETHER == ((struct sockaddr_dl*) ifp->ifa_addr)->sdl_type) {
1.1.2.6 misho 102: memset(&ifmr, 0, sizeof ifmr);
103: strlcpy(ifmr.ifm_name, ifp->ifa_name, IFNAMSIZ);
104: if (ioctl(s, SIOCGIFMEDIA, &ifmr) == -1) {
105: syslog(LOG_ERR, "Error:: media interface=%s ioctl(SIOCGIFMEDIA) #%d - %s\n",
106: ifmr.ifm_name, errno, strerror(errno));
107: close(s);
108: closelog();
109: return 1;
110: }
111:
112: if (IFM_ETHER == IFM_TYPE(ifmr.ifm_current)) {
113: strlcpy(szIface, ifp->ifa_name, MAX_STR);
114: sdl = (struct sockaddr_dl*) ifp->ifa_addr;
115: VERB(2) syslog(LOG_NOTICE, "Info:: Get first interface=%s MAC=%s\n", szIface,
116: ether_ntoa((struct ether_addr*) LLADDR(sdl)));
117: break;
118: }
1.1.2.2 misho 119: }
120: }
121: freeifaddrs(ifa);
1.1.2.7 misho 122:
123: close(s);
1.1.2.2 misho 124: }
1.1.2.6 misho 125: if (!*szIface) {
126: syslog(LOG_NOTICE, "Info:: Ethernet interface not found!!!\n");
127:
128: closelog();
129: return 1;
130: }
131:
1.1.2.2 misho 132: if (GetOnly) {
133: printf("%s\n", szIface);
134:
135: closelog();
136: return 0;
137: }
138:
1.1.2.5 misho 139: s = kldLoad();
140: if (s == -1) {
1.1.2.6 misho 141: syslog(LOG_ERR, "Error:: kldload(if_vlan) Can`t operate with vlans ...\n");
1.1.2.5 misho 142: return 1;
143: } else
1.1.2.8 misho 144: VERB(3) syslog(LOG_NOTICE, "VLAN module ... %s\n", s ? "Loaded" : "Already loaded");
1.1.2.5 misho 145:
1.1.2.3 misho 146: // create vlan
1.1.2.2 misho 147: memset(&ifr, 0, sizeof ifr);
1.1.2.3 misho 148: strlcpy(vlr.vlr_parent, szIface, IFNAMSIZ);
149: vlr.vlr_tag = MGMT_VTAG;
150:
151: strlcpy(ifr.ifr_name, MGMT_IFACE, IFNAMSIZ);
152: ifr.ifr_data = (void *) &vlr;
1.1.2.2 misho 153:
1.1.2.7 misho 154: s = socket(PF_INET, SOCK_DGRAM, 0);
155: if (-1 == s) {
156: syslog(LOG_ERR, "Error:: socket(INET) #%d - %s\n", errno, strerror(errno));
157: closelog();
158: return 2;
159: }
1.1.2.4 misho 160: if (ioctl(s, SIOCIFCREATE2, &ifr) == -1 && errno != EEXIST) {
1.1.2.3 misho 161: syslog(LOG_ERR, "Error:: Create interface=%s ioctl(SIOCIFCREATE2) #%d - %s\n",
162: MGMT_IFACE, errno, strerror(errno));
1.1.2.2 misho 163: close(s);
164: return 2;
1.1.2.3 misho 165: } else
166: VERB(2) syslog(LOG_NOTICE, "Info:: Created interface=%s\n", MGMT_IFACE);
167: // rename iface
168: ifr.ifr_data = MGMT_NAME;
1.1.2.4 misho 169: if (errno != EEXIST && ioctl(s, SIOCSIFNAME, &ifr) == -1) {
1.1.2.3 misho 170: syslog(LOG_ERR, "Error:: Managment interface=%s ioctl(SIOCSIFNAME) #%d - %s\n",
171: MGMT_NAME, errno, strerror(errno));
172: close(s);
173: return 2;
174: } else
175: VERB(2) syslog(LOG_NOTICE, "Info:: Managment interface=%s\n", MGMT_NAME);
1.1.2.4 misho 176:
1.1.2.3 misho 177: // assign address & up
1.1.2.4 misho 178: memset(&ifra, 0, sizeof ifra);
179: strlcpy(ifra.ifra_name, MGMT_NAME, IFNAMSIZ);
180: sin = (struct sockaddr_in*) &ifra.ifra_addr;
181: sin->sin_len = sizeof ifra.ifra_addr;
182: sin->sin_family = AF_INET;
183: sin->sin_addr.s_addr = inet_addr(MGMT_ADDR);
184: sin = (struct sockaddr_in*) &ifra.ifra_mask;
185: sin->sin_len = sizeof ifra.ifra_mask;
186: sin->sin_family = AF_INET;
187: sin->sin_addr.s_addr = inet_addr(MGMT_MASK);
188: if (ioctl(s, SIOCAIFADDR, &ifra) == -1) {
189: syslog(LOG_ERR, "Error:: IP %s ioctl(SIOCAIFADDR) #%d - %s\n",
190: MGMT_ADDR, errno, strerror(errno));
191: close(s);
192: return 2;
193: } else
194: VERB(2) syslog(LOG_NOTICE, "Info:: IP %s\n", MGMT_ADDR);
1.1.2.2 misho 195:
196: close(s);
197: closelog();
1.1.2.1 misho 198: return 0;
199: }
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