Ejemplos de get_addr_rta en C++ (Cpp)

Ejemplo n.º 1

Archivo: utils.c Proyecto: dtaht/tc-adv

int inet_addr_match_rta(const inet_prefix *m, const struct rtattr *rta)
{
	inet_prefix dst;

	if (!rta || m->family == AF_UNSPEC || m->bitlen <= 0)
		return 0;

	if (get_addr_rta(&dst, rta, m->family))
		return -1;

	return inet_addr_match(&dst, m, m->bitlen);
}

Ejemplo n.º 2

Archivo: link_vti6.c Proyecto: eworm-de/iproute2

static int vti6_parse_opt(struct link_util *lu, int argc, char **argv,
			  struct nlmsghdr *n)
{
	struct ifinfomsg *ifi = NLMSG_DATA(n);
	struct {
		struct nlmsghdr n;
		struct ifinfomsg i;
	} req = {
		.n.nlmsg_len = NLMSG_LENGTH(sizeof(*ifi)),
		.n.nlmsg_flags = NLM_F_REQUEST,
		.n.nlmsg_type = RTM_GETLINK,
		.i.ifi_family = preferred_family,
		.i.ifi_index = ifi->ifi_index,
	};
	struct nlmsghdr *answer;
	struct rtattr *tb[IFLA_MAX + 1];
	struct rtattr *linkinfo[IFLA_INFO_MAX+1];
	struct rtattr *vtiinfo[IFLA_VTI_MAX + 1];
	__be32 ikey = 0;
	__be32 okey = 0;
	inet_prefix saddr, daddr;
	unsigned int link = 0;
	__u32 fwmark = 0;
	int len;

	inet_prefix_reset(&saddr);
	inet_prefix_reset(&daddr);

	if (!(n->nlmsg_flags & NLM_F_CREATE)) {
		const struct rtattr *rta;

		if (rtnl_talk(&rth, &req.n, &answer) < 0) {
get_failed:
			fprintf(stderr,
				"Failed to get existing tunnel info.\n");
			return -1;
		}

		len = answer->nlmsg_len;
		len -= NLMSG_LENGTH(sizeof(*ifi));
		if (len < 0)
			goto get_failed;

		parse_rtattr(tb, IFLA_MAX, IFLA_RTA(NLMSG_DATA(answer)), len);

		if (!tb[IFLA_LINKINFO])
			goto get_failed;

		parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]);

		if (!linkinfo[IFLA_INFO_DATA])
			goto get_failed;

		parse_rtattr_nested(vtiinfo, IFLA_VTI_MAX,
				    linkinfo[IFLA_INFO_DATA]);

		rta = vtiinfo[IFLA_VTI_LOCAL];
		if (rta && get_addr_rta(&saddr, rta, AF_INET6))
			goto get_failed;

		rta = vtiinfo[IFLA_VTI_REMOTE];
		if (rta && get_addr_rta(&daddr, rta, AF_INET6))
			goto get_failed;

		if (vtiinfo[IFLA_VTI_IKEY])
			ikey = rta_getattr_u32(vtiinfo[IFLA_VTI_IKEY]);

		if (vtiinfo[IFLA_VTI_OKEY])
			okey = rta_getattr_u32(vtiinfo[IFLA_VTI_OKEY]);

		if (vtiinfo[IFLA_VTI_LINK])
			link = rta_getattr_u8(vtiinfo[IFLA_VTI_LINK]);

		if (vtiinfo[IFLA_VTI_FWMARK])
			fwmark = rta_getattr_u32(vtiinfo[IFLA_VTI_FWMARK]);

		free(answer);
	}

	while (argc > 0) {
		if (!matches(*argv, "key")) {
			NEXT_ARG();
			ikey = okey = tnl_parse_key("key", *argv);
		} else if (!matches(*argv, "ikey")) {
			NEXT_ARG();
			ikey = tnl_parse_key("ikey", *argv);
		} else if (!matches(*argv, "okey")) {
			NEXT_ARG();
			okey = tnl_parse_key("okey", *argv);
		} else if (!matches(*argv, "remote")) {
			NEXT_ARG();
			get_addr(&daddr, *argv, AF_INET6);
		} else if (!matches(*argv, "local")) {
			NEXT_ARG();
			get_addr(&saddr, *argv, AF_INET6);
		} else if (!matches(*argv, "dev")) {
			NEXT_ARG();
			link = ll_name_to_index(*argv);
			if (!link)
				exit(nodev(*argv));
		} else if (strcmp(*argv, "fwmark") == 0) {
			NEXT_ARG();
			if (get_u32(&fwmark, *argv, 0))
				invarg("invalid fwmark\n", *argv);
		} else {
			vti6_print_help(lu, argc, argv, stderr);
			return -1;
		}
		argc--; argv++;
	}

	addattr32(n, 1024, IFLA_VTI_IKEY, ikey);
	addattr32(n, 1024, IFLA_VTI_OKEY, okey);
	if (is_addrtype_inet_not_unspec(&saddr))
		addattr_l(n, 1024, IFLA_VTI_LOCAL, saddr.data, saddr.bytelen);
	if (is_addrtype_inet_not_unspec(&daddr))
		addattr_l(n, 1024, IFLA_VTI_REMOTE, daddr.data, daddr.bytelen);
	addattr32(n, 1024, IFLA_VTI_FWMARK, fwmark);
	if (link)
		addattr32(n, 1024, IFLA_VTI_LINK, link);

	return 0;
}

static void vti6_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
	char s2[64];

	if (!tb)
		return;

	tnl_print_endpoint("remote", tb[IFLA_VTI_REMOTE], AF_INET6);
	tnl_print_endpoint("local", tb[IFLA_VTI_LOCAL], AF_INET6);

	if (tb[IFLA_VTI_LINK]) {
		__u32 link = rta_getattr_u32(tb[IFLA_VTI_LINK]);

		if (link) {
			print_string(PRINT_ANY, "link", "dev %s ",
				     ll_index_to_name(link));
		}
	}

	if (tb[IFLA_VTI_IKEY]) {
		struct rtattr *rta = tb[IFLA_VTI_IKEY];
		__u32 key = rta_getattr_u32(rta);

		if (key && inet_ntop(AF_INET, RTA_DATA(rta), s2, sizeof(s2)))
			print_string(PRINT_ANY, "ikey", "ikey %s ", s2);
	}

	if (tb[IFLA_VTI_OKEY]) {
		struct rtattr *rta = tb[IFLA_VTI_OKEY];
		__u32 key = rta_getattr_u32(rta);

		if (key && inet_ntop(AF_INET, RTA_DATA(rta), s2, sizeof(s2)))
			print_string(PRINT_ANY, "okey", "okey %s ", s2);
	}

	if (tb[IFLA_VTI_FWMARK]) {
		__u32 fwmark = rta_getattr_u32(tb[IFLA_VTI_FWMARK]);

		if (fwmark) {
			print_0xhex(PRINT_ANY,
				    "fwmark", "fwmark %#llx ", fwmark);
		}
	}
}