pfkey_dump.c

来自「eCos操作系统源码」· C语言 代码 · 共 658 行 · 第 1/2 页

		printf("\tcreated: %s",
			str_time(m_lftc->sadb_lifetime_addtime));
		printf("\tcurrent: %s\n", str_time(tmp_time));
		printf("\tdiff: %lu(s)",
			(u_long)(m_lftc->sadb_lifetime_addtime == 0 ?
			0 : (tmp_time - m_lftc->sadb_lifetime_addtime)));

		printf("\thard: %lu(s)",
			(u_long)(m_lfth == NULL ?
			0 : m_lfth->sadb_lifetime_addtime));
		printf("\tsoft: %lu(s)\n",
			(u_long)(m_lfts == NULL ?
			0 : m_lfts->sadb_lifetime_addtime));

		printf("\tlast: %s",
			str_time(m_lftc->sadb_lifetime_usetime));
		printf("\thard: %lu(s)",
			(u_long)(m_lfth == NULL ?
			0 : m_lfth->sadb_lifetime_usetime));
		printf("\tsoft: %lu(s)\n",
			(u_long)(m_lfts == NULL ?
			0 : m_lfts->sadb_lifetime_usetime));

		str_lifetime_byte(m_lftc, "current");
		str_lifetime_byte(m_lfth, "hard");
		str_lifetime_byte(m_lfts, "soft");
		printf("\n");

		printf("\tallocated: %lu",
			(unsigned long)m_lftc->sadb_lifetime_allocations);
		printf("\thard: %lu",
			(u_long)(m_lfth == NULL ?
			0 : m_lfth->sadb_lifetime_allocations));
		printf("\tsoft: %lu\n",
			(u_long)(m_lfts == NULL ?
			0 : m_lfts->sadb_lifetime_allocations));
	}

	printf("\tsadb_seq=%lu pid=%lu ",
		(u_long)m->sadb_msg_seq,
		(u_long)m->sadb_msg_pid);

	/* XXX DEBUG */
	printf("refcnt=%u\n", m->sadb_msg_reserved);

	return;
}

void
pfkey_spdump(m)
	struct sadb_msg *m;
{
	char pbuf[NI_MAXSERV];
	caddr_t mhp[SADB_EXT_MAX + 1];
	struct sadb_address *m_saddr, *m_daddr;
#ifdef SADB_X_EXT_TAG
	struct sadb_x_tag *m_tag;
#endif
	struct sadb_x_policy *m_xpl;
	struct sadb_lifetime *m_lftc = NULL, *m_lfth = NULL;
	struct sockaddr *sa;
	u_int16_t sport = 0, dport = 0;

	/* check pfkey message. */
	if (pfkey_align(m, mhp)) {
		printf("%s\n", ipsec_strerror());
		return;
	}
	if (pfkey_check(mhp)) {
		printf("%s\n", ipsec_strerror());
		return;
	}

	m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
	m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
#ifdef SADB_X_EXT_TAG
	m_tag = (struct sadb_x_tag *)mhp[SADB_X_EXT_TAG];
#endif
	m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
	m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
	m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];

	if (m_saddr && m_daddr) {
		/* source address */
		sa = (struct sockaddr *)(m_saddr + 1);
		switch (sa->sa_family) {
		case AF_INET:
		case AF_INET6:
			if (getnameinfo(sa, sa->sa_len, NULL, 0,
			    pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
				sport = 0;	/*XXX*/
			else
				sport = atoi(pbuf);
			printf("%s%s ", str_ipaddr(sa),
				str_prefport(sa->sa_family,
				    m_saddr->sadb_address_prefixlen, sport,
				    m_saddr->sadb_address_proto));
			break;
		default:
			printf("unknown-af ");
			break;
		}

		/* destination address */
		sa = (struct sockaddr *)(m_daddr + 1);
		switch (sa->sa_family) {
		case AF_INET:
		case AF_INET6:
			if (getnameinfo(sa, sa->sa_len, NULL, 0,
			    pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
				dport = 0;	/*XXX*/
			else
				dport = atoi(pbuf);
			printf("%s%s ", str_ipaddr(sa),
				str_prefport(sa->sa_family,
				    m_daddr->sadb_address_prefixlen, dport,
				    m_saddr->sadb_address_proto));
			break;
		default:
			printf("unknown-af ");
			break;
		}

		/* upper layer protocol */
		if (m_saddr->sadb_address_proto !=
		    m_daddr->sadb_address_proto) {
			printf("upper layer protocol mismatched.\n");
			return;
		}
		str_upperspec(m_saddr->sadb_address_proto, sport, dport);
	}
#ifdef SADB_X_EXT_TAG
	else if (m_tag)
		printf("tagged \"%s\" ", m_tag->sadb_x_tag_name);
#endif
	else
		printf("(no selector, probably per-socket policy) ");

	/* policy */
    {
	char *d_xpl;

	if (m_xpl == NULL) {
		printf("no X_POLICY extension.\n");
		return;
	}
	d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");

	/* dump SPD */
	printf("\n\t%s\n", d_xpl);
	free(d_xpl);
    }

	/* lifetime */
	if (m_lftc) {
		printf("\tcreated: %s  ",
			str_time(m_lftc->sadb_lifetime_addtime));
		printf("lastused: %s\n",
			str_time(m_lftc->sadb_lifetime_usetime));
	}
	if (m_lfth) {
		printf("\tlifetime: %lu(s) ",
			(u_long)m_lfth->sadb_lifetime_addtime);
		printf("validtime: %lu(s)\n",
			(u_long)m_lfth->sadb_lifetime_usetime);
	}


	printf("\tspid=%ld seq=%ld pid=%ld\n",
		(u_long)m_xpl->sadb_x_policy_id,
		(u_long)m->sadb_msg_seq,
		(u_long)m->sadb_msg_pid);

	/* XXX TEST */
	printf("\trefcnt=%u\n", m->sadb_msg_reserved);

	return;
}

/*
 * set "ipaddress" to buffer.
 */
static char *
str_ipaddr(sa)
	struct sockaddr *sa;
{
	static char buf[NI_MAXHOST];
	const int niflag = NI_NUMERICHOST;

	if (sa == NULL)
		return "";

	if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
		return buf;
	return NULL;
}

/*
 * set "/prefix[port number]" to buffer.
 */
static char *
str_prefport(family, pref, port, ulp)
	u_int family, pref, port, ulp;
{
	static char buf[128];
	char prefbuf[128];
	char portbuf[128];
	int plen;

	switch (family) {
	case AF_INET:
		plen = sizeof(struct in_addr) << 3;
		break;
	case AF_INET6:
		plen = sizeof(struct in6_addr) << 3;
		break;
	default:
		return "?";
	}

	if (pref == plen)
		prefbuf[0] = '\0';
	else
		snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);

	if (ulp == IPPROTO_ICMPV6)
		memset(portbuf, 0, sizeof(portbuf));
	else {
		if (port == IPSEC_PORT_ANY)
			snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
		else
			snprintf(portbuf, sizeof(portbuf), "[%u]", port);
	}

	snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);

	return buf;
}

static void
str_upperspec(ulp, p1, p2)
	u_int ulp, p1, p2;
{
	if (ulp == IPSEC_ULPROTO_ANY)
		printf("any");
	else if (ulp == IPPROTO_ICMPV6) {
		printf("icmp6");
		if (!(p1 == IPSEC_PORT_ANY && p2 == IPSEC_PORT_ANY))
			printf(" %u,%u", p1, p2);
	} else {
		struct protoent *ent;

		switch (ulp) {
		case IPPROTO_IPV4:
			printf("ip4");
			break;
		default:
			ent = getprotobynumber(ulp);
			if (ent)
				printf("%s", ent->p_name);
			else
				printf("%u", ulp);

			endprotoent();
			break;
		}
	}
}

/*
 * set "Mon Day Time Year" to buffer
 */
static char *
str_time(t)
	time_t t;
{
	static char buf[128];

	if (t == 0) {
		int i = 0;
		for (;i < 20;) buf[i++] = ' ';
	} else {
		char *t0;
		t0 = ctime(&t);
		memcpy(buf, t0 + 4, 20);
	}

	buf[20] = '\0';

	return(buf);
}

static void
str_lifetime_byte(x, str)
	struct sadb_lifetime *x;
	char *str;
{
	double y;
	char *unit;
	int w;

	if (x == NULL) {
		printf("\t%s: 0(bytes)", str);
		return;
	}

#if 0
	if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
		y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
		unit = "M";
		w = 1;
	} else if ((x->sadb_lifetime_bytes) / 1024) {
		y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
		unit = "K";
		w = 1;
	} else {
		y = (x->sadb_lifetime_bytes) * 1.0;
		unit = "";
		w = 0;
	}
#else
	y = (x->sadb_lifetime_bytes) * 1.0;
	unit = "";
	w = 0;
#endif
	printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
}