C++ (Cpp) ipv4_route_del示例

示例#1

文件： dpdk.c 项目： samirdasiitr/vrouter

// detach a VIF from a vrf
void vif_del(struct vif* vif)
{
    ipv4_route_del(vif->label, vif->ip);
    rte_vhost_driver_unregister(vif->path);
    free(vif);
}

示例#2

文件： cmd_ipcfg.c 项目： powertang/yard-ice

int cmd_ipcfg(FILE *f, int argc, char ** argv)
{
	struct ifnet * ifn;
	struct route * rt;
	in_addr_t ipv4_addr;
	in_addr_t ipv4_mask = INADDR_ANY;
	in_addr_t gw_addr = INADDR_ANY;
	int use_dhcp = 0;
	int change = 0;
	char s[64];
	char ip[16];
	char * env;
	char * cp;

	if (argc > 1)
		return SHELL_ERR_EXTRA_ARGS;

	fprintf(f, "\n** IP configuration utility **\n\n");

	/* get current configuration */
	if ((ifn = get_ifn_byname("eth0")) == NULL)
		return -1;

	ifn_ipv4_get(ifn, &ipv4_addr, &ipv4_mask);
	
	if ((rt = ipv4_route_get(INADDR_ANY, INADDR_ANY)) == NULL)
		gw_addr = INADDR_ANY;
	else
		gw_addr = rt->rt_gateway;
	use_dhcp = 0;

	/* get environment variable */
	if ((env = getenv("IPCFG")) != NULL) {
		strcpy(s, env);

		if (!inet_aton(strtok(s, " ,"), (struct in_addr *)&ipv4_addr)) {
			return -1;
		}

		if (inet_aton(strtok(NULL, " ,"), (struct in_addr *)&ipv4_mask)) {
			if (inet_aton(strtok(NULL, " ,"), (struct in_addr *)&gw_addr)) {
				use_dhcp = strtoul(strtok(NULL, " , "), NULL, 0);
			}
		}
	} 

	for(;;) {
		fprintf(f, " - IP addr(%s): ", 
		   inet_ntop(AF_INET, (void *)&ipv4_addr, ip, 16));
		fgets(s, 32, f);
		if (s[0] == '\n')
			break;
		if (inet_aton(s, (struct in_addr *)&ipv4_addr)) {
			change++;
			break;
		}
	}

	for(;;) {
		fprintf(f, " - Network mask(%s): ", 
		   inet_ntop(AF_INET, (void *)&ipv4_mask, ip, 16));
		fgets(s, 32, f);
		if (s[0] == '\n')
			break;
		if (inet_aton(s, (struct in_addr *)&ipv4_mask)) {
			change++;
			break;
		}
	}

	for (;;) {
		fprintf(f, " - Gateway addr(%s): ", 
		   inet_ntop(AF_INET, (void *)&gw_addr, ip, 16));
		fgets(s, 32, f);
		if (s[0] == '\n')
			break;
		if (inet_aton(s, (struct in_addr *)&gw_addr)) {
			change++;
			break;	
		}
	} 

#if 0
	for (;;) {
		int c;

		fprintf(f, " - Enable DHCP [y/n]? (%c): ", use_dhcp ? 'y' : 'n');
		fgets(s, 32, f);
		if (s[0] == '\n')
			break;
		c = tolower(s[0]);
		if ((c == 'y') || (c == 'n')) {
			use_dhcp = (c == 'y') ? 1 : 0;
			change++;
			break;
		}
	};
#endif

	if (!change) {
		fprintf(f, "\nKeeping current configuration.\n");
		return 0;
	}

	cp = s + sprintf(s, "%s", inet_ntop(AF_INET, (void *)&ipv4_addr, ip, 16));
	cp += sprintf(cp, " %s", inet_ntop(AF_INET, (void *)&ipv4_mask, ip, 16));
	cp += sprintf(cp, " %s", inet_ntop(AF_INET, (void *)&gw_addr, ip, 16));
	sprintf(cp, " %d", use_dhcp);

	if (setenv("IPCFG", s, 1) < 0) {
		fprintf(f, "setenv() error!\n");
		return -1; 
	}

	fprintf(f, "\nConfiguration saved.\n");

	ifn_ipv4_set(ifn, ipv4_addr, ipv4_mask);
	/* set the default route */
	ipv4_route_del(INADDR_ANY);
	ipv4_route_add(INADDR_ANY, INADDR_ANY, gw_addr, ifn);


#if 0
	fprintf(f, "\n - Restart the system [y/n]? ");
	fgets(s, 32, f);

	if ((tolower(s[0]) == 'y')) {
		cmd_reboot(f, 0, NULL);
	};
#endif

	return 0;
}