Annotation of embedaddon/freevrrpd/vrrp_main.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (c) 2001,2002 Sebastien Petit <spe@bsdfr.org>
! 3: *
! 4: * Redistribution and use in source forms, with and without modification,
! 5: * are permitted provided that the following conditions are met:
! 6: * 1. Redistributions of source code must retain the above copyright notice,
! 7: * this list of conditions and the following disclaimer.
! 8: * 2. Redistributions in binary form must reproduce the above copyright notice,
! 9: * this list of conditions and the following disclaimer in the documentation
! 10: * and/or other materials provided with the distribution. Obviously, it
! 11: * would be nice if you gave credit where credit is due but requiring it
! 12: * would be too onerous.
! 13: * 3. All advertising materials mentioning features or use of this software
! 14: * must display the following acknowledgement:
! 15: * This product includes software developed by Sebastien Petit.
! 16: * 4. Neither the name of its contributors may be used to endorse or promote
! 17: * products derived from this software without specific prior written
! 18: * permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: *
! 32: * $Id: vrrp_main.c,v 1.12 2004/03/30 23:13:00 spe Exp $
! 33: */
! 34:
! 35: #include <errno.h>
! 36: #include "vrrp_main.h"
! 37: #include "vrrp_conf.h"
! 38: #include "vrrp_thread.h"
! 39:
! 40: /* Variables Globales */
! 41: /* addresses table of all struct vrrp_vr * initialized */
! 42: struct vrrp_vr *vr_ptr[VRRP_PROTOCOL_MAX_VRID+1];
! 43: /* actual position on this table */
! 44: u_char vr_ptr_pos = 0;
! 45:
! 46: void
! 47: vrrp_main_pre_init(struct vrrp_vr * vr)
! 48: {
! 49: bzero(vr, sizeof(*vr));
! 50: vr->priority = 100;
! 51: vr->adv_int = VRRP_DEFAULT_ADV_INT;
! 52: vr->preempt_mode = 1;
! 53: vr->fault = 0;
! 54: vr->useMonitoredCircuits = 1;
! 55: vr->spanningTreeLatency = 0;
! 56: vr->monitoredCircuitsClearErrorsCount = VRRP_MONCIRCUIT_CLEAR_ERRORS;
! 57: vr->bridge_link_number = 2;
! 58:
! 59: return;
! 60: }
! 61:
! 62: void
! 63: vrrp_main_post_init(struct vrrp_vr * vr, int firstime)
! 64: {
! 65: int size = MAX_IP_ALIAS;
! 66: int rc;
! 67:
! 68: vr->ethaddr.octet[0] = 0x00;
! 69: vr->ethaddr.octet[1] = 0x00;
! 70: vr->ethaddr.octet[2] = 0x5E;
! 71: vr->ethaddr.octet[3] = 0x00;
! 72: vr->ethaddr.octet[4] = 0x01;
! 73: vr->ethaddr.octet[5] = vr->vr_id;
! 74: vr->skew_time = (256 - vr->priority) / 256;
! 75: vr->master_down_int = (3 * vr->adv_int) + vr->skew_time;
! 76: if (firstime) {
! 77: vrrp_misc_get_if_infos(vr->vr_if->if_name, &vr->vr_if->ethaddr, vr->vr_if->ip_addrs, &size);
! 78: if (! vr->vr_if->ip_addrs[0].s_addr) {
! 79: syslog(LOG_CRIT, "no IP address is configured on the real interface %s\n", vr->vr_if->if_name);
! 80: syslog(LOG_CRIT, "cannot join multicast vrrp group without a real ip adress on %s\n", vr->vr_if->if_name);
! 81: syslog(LOG_CRIT, "choose an IP address that is not used on any VRIDs and restart\n");
! 82: syslog(LOG_CRIT, "you can set a private address for announcing VRRP packets (eg: 192.168.0.1/24)\n");
! 83: syslog(LOG_CRIT, "exiting...\n");
! 84: exit(-1);
! 85: }
! 86: vrrp_vlanlist_initialize(vr);
! 87: vrrp_misc_get_vlan_infos(vr);
! 88: vr->vr_if->nb_ip = size;
! 89: vr->vr_if->alive = 1;
! 90: vr->vr_if->nberrors = 0;
! 91: vr->vr_if->reportsyslog = 0;
! 92: vr->vr_if->carrier_timeout = VRRP_DEFAULT_CARRIER_TIMEOUT;
! 93: vr->vr_if->checksok = 0;
! 94: }
! 95: vr->ioctl_sd = socket(AF_INET, SOCK_DGRAM, 0);
! 96: if (vr->ioctl_sd == -1) {
! 97: syslog(LOG_WARNING, "cannot open socket: %s", strerror(errno));
! 98: exit(-1);
! 99: }
! 100:
! 101: /* Setting real interface in promiscuous mode */
! 102: if (vrrp_interface_promiscuous(vr->vr_if->if_name) < 0) {
! 103: syslog(LOG_CRIT, "cannot set interface %s in promiscuous mode\n", vr->vr_if->if_name);
! 104: syslog(LOG_CRIT, "exiting...");
! 105: exit(-1);
! 106: }
! 107:
! 108: rc = vrrp_netgraph_bridge_create(vr->vr_if->if_name);
! 109: if ((rc < 0) && (errno != EEXIST)) {
! 110: syslog(LOG_CRIT, "cannot create a bridge device: %s", strerror(errno));
! 111: syslog(LOG_CRIT, "aborting...");
! 112: exit(-1);
! 113: }
! 114: rc = vrrp_netgraph_create_virtualiface(vr);
! 115: if (rc < 0) {
! 116: syslog(LOG_CRIT, "cannot create a virtual interface via netgraph: %s\n", strerror(errno));
! 117: syslog(LOG_CRIT, "check that ng_socket, ng_ether, ng_eiface and ng_bridge are loaded\n");
! 118: exit(-1);
! 119: }
! 120:
! 121: return;
! 122: }
! 123:
! 124: void
! 125: vrrp_main_print_struct(struct vrrp_vr * vr)
! 126: {
! 127: int cpt;
! 128:
! 129: fprintf(stderr, "VServer ID\t\t: %u\n", vr->vr_id);
! 130: fprintf(stderr, "VServer PRIO\t\t: %u\n", vr->priority);
! 131: fprintf(stderr, "VServer ETHADDR\t\t: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", vr->ethaddr.octet[0], vr->ethaddr.octet[1], vr->ethaddr.octet[2], vr->ethaddr.octet[3], vr->ethaddr.octet[4], vr->ethaddr.octet[5]);
! 132: fprintf(stderr, "VServer CNT_IP\t\t: %u\n", vr->cnt_ip);
! 133: fprintf(stderr, "VServer IPs\t\t:\n");
! 134: for (cpt = 0; cpt < vr->cnt_ip; cpt++)
! 135: fprintf(stderr, "\t%s\n", inet_ntoa(vr->vr_ip[cpt].addr));
! 136: fprintf(stderr, "VServer ADV_INT\t\t: %u\n", vr->adv_int);
! 137: fprintf(stderr, "VServer MASTER_DW_TM\t: %u\n", vr->master_down_int);
! 138: fprintf(stderr, "VServer SKEW_TIME\t: %u\n", vr->skew_time);
! 139: fprintf(stderr, "VServer State\t\t: %u\n", vr->state);
! 140: fprintf(stderr, "Server IF_NAME\t\t: %s\n", vr->vr_if->if_name);
! 141: fprintf(stderr, "Server NB_IP\t\t: %u\n", vr->vr_if->nb_ip);
! 142: fprintf(stderr, "Server IPs\t\t:\n");
! 143: for (cpt = 0; cpt < vr->vr_if->nb_ip; cpt++)
! 144: fprintf(stderr, "\t%s\n", inet_ntoa(vr->vr_if->ip_addrs[cpt]));
! 145: fprintf(stderr, "Server ETHADDR\t\t: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", vr->vr_if->ethaddr.octet[0], vr->vr_if->ethaddr.octet[1], vr->vr_if->ethaddr.octet[2], vr->vr_if->ethaddr.octet[3], vr->vr_if->ethaddr.octet[4], vr->vr_if->ethaddr.octet[5]);
! 146:
! 147: return;
! 148: }
! 149:
! 150: void
! 151: init_copt(struct conf_options *copt)
! 152: {
! 153: copt->conffile = VRRP_CONF_FILE_NAME;
! 154: copt->foreground = 0;
! 155: copt->chrootdir = NULL;
! 156:
! 157: return;
! 158: }
! 159:
! 160: void
! 161: print_usage(void)
! 162: {
! 163: printf("FreeVRRPd - VRRP daemon for FreeBSD\n");
! 164: printf("Choose one of the following:\n");
! 165: printf("-f : specify a path to a configuration file\n");
! 166: printf("-F : launching in foreground\n");
! 167: printf("-c : chroot to the specified directory\n");
! 168: printf("-h : this screen ;)\n");
! 169: printf("Found a bug ? mail me at spe@bsdfr.org\n");
! 170:
! 171: return;
! 172: }
! 173:
! 174: void pidfile(void) {
! 175: pid_t pid;
! 176: FILE *fs;
! 177:
! 178: pid = getpid();
! 179: fs = fopen("/var/run/freevrrpd.pid", "w");
! 180: if (fs) {
! 181: fprintf(fs, "%ld\n", (long)pid);
! 182: fclose(fs);
! 183: }
! 184: else {
! 185: syslog(LOG_ERR, "cannot open pid file for writing: %s\n", strerror(errno));
! 186: exit(EXIT_FAILURE);
! 187: }
! 188:
! 189: return;
! 190: }
! 191:
! 192: int
! 193: main(int argc, char **argv)
! 194: {
! 195: FILE *stream;
! 196: int coderet = 0;
! 197: struct vrrp_vr *vr = NULL;
! 198: struct conf_options copt;
! 199: char ch;
! 200: int firstime = 0;
! 201:
! 202: openlog("freevrrpd", LOG_PID, LOG_USER);
! 203: init_copt(&copt);
! 204: while ((ch = getopt(argc, argv, "f:Fc:h")) != -1) {
! 205: switch (ch) {
! 206: case 'F':
! 207: copt.foreground = 1;
! 208: break;
! 209: case 'f':
! 210: copt.conffile = (char *)calloc(strlen(optarg)+1, 1);
! 211: strncpy(copt.conffile, optarg, strlen(optarg));
! 212: break;
! 213: case 'c':
! 214: copt.chrootdir = (char *)calloc(strlen(optarg)+1, 1);
! 215: strncpy(copt.chrootdir, optarg, strlen(optarg));
! 216: break;
! 217: case 'h':
! 218: default:
! 219: print_usage();
! 220: exit(-1);
! 221: break;
! 222: }
! 223: }
! 224: if (copt.chrootdir)
! 225: if (chroot(copt.chrootdir) == -1)
! 226: syslog(LOG_ERR, "cannot chroot to the specified directory %s: %s", copt.chrootdir, strerror(errno));
! 227: if ((stream = vrrp_conf_open_file(copt.conffile)) == NULL)
! 228: return -1;
! 229: if (! copt.foreground) {
! 230: syslog(LOG_NOTICE, "launching daemon in background mode");
! 231: if (daemon(0, 0) == -1) {
! 232: syslog(LOG_ERR, "cannot transition to daemon mode: %s", strerror(errno));
! 233: return -1;
! 234: }
! 235: }
! 236: /*if (vrrp_netgraph_open(&ng_control_socket, &ng_data_socket) < 0) {
! 237: syslog(LOG_ERR, "cannot open netgraph control socket: %s", strerror(errno));
! 238: exit(-1);
! 239: }*/
! 240:
! 241: /* Initialisation of struct vrrp_vr * adresses table */
! 242: bzero(&vr_ptr, sizeof(vr_ptr));
! 243: syslog(LOG_NOTICE, "initializing threads and all VRID");
! 244: vrrp_thread_initialize();
! 245: syslog(LOG_NOTICE, "reading configuration file %s", copt.conffile);
! 246: while (!coderet) {
! 247: vr = (struct vrrp_vr *)calloc(1, sizeof(struct vrrp_vr));
! 248: vrrp_main_pre_init(vr);
! 249: coderet = vrrp_conf_lecture_fichier(vr, stream);
! 250: if (coderet < 0)
! 251: return coderet;
! 252: firstime = (! vr->vr_if->p) || (! vr->vr_if->d);
! 253: vrrp_main_post_init(vr, firstime);
! 254: if (firstime) {
! 255: if (vrrp_list_initialize(vr, &vr->vr_if->ethaddr) < 0)
! 256: return -1;
! 257: }
! 258: vrrp_interface_owner_verify(vr);
! 259: if (vrrp_multicast_open_socket(vr) == -1)
! 260: return -1;
! 261: vrrp_main_print_struct(vr);
! 262: if (vrrp_thread_create_vrid(vr) == -1)
! 263: return -1;
! 264: }
! 265: vrrp_signal_initialize();
! 266: /* Write a pid file in /var/run */
! 267: pidfile();
! 268: if (vr->useMonitoredCircuits) {
! 269: if (vrrp_thread_create_moncircuit() == -1)
! 270: return -1;
! 271: syslog(LOG_NOTICE, "monitored circuits engine initialized");
! 272: }
! 273: else
! 274: syslog(LOG_NOTICE, "monitored circuits engine disabled");
! 275:
! 276: pthread_exit(NULL);
! 277:
! 278: return 0;
! 279: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to vrrp_main.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / freevrrpd