* SUCH DAMAGE.
*/
/*
- * draft-ietf-dhc-dhcpv6-22.txt
+ * draft-ietf-dhc-dhcpv6-26.txt
*/
#ifndef lint
static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-dhcp6.c,v 1.18 2002-06-11 17:08:44 itojun Exp $";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-dhcp6.c,v 1.19 2002-06-14 15:45:59 itojun Exp $";
#endif
#ifdef HAVE_CONFIG_H
#include "interface.h"
#include "addrtoname.h"
+/* lease duration */
+#define DHCP6_DURATITION_INFINITE 0xffffffff
+
/* Error Values */
#define DH6ERR_FAILURE 16
#define DH6ERR_AUTHFAIL 17
#define DH6ERR_OPTUNAVAIL 20
/* Message type */
+#define DH6_SOLICIT 1
+#define DH6_ADVERTISE 2
+#define DH6_REQUEST 3
+#define DH6_CONFIRM 4
+#define DH6_RENEW 5
+#define DH6_REBIND 6
#define DH6_REPLY 7
#define DH6_INFORM_REQ 11
u_int8_t m;
u_int32_t x;
} dh6_msgtypexid;
- struct in6_addr dh6_servaddr;
/* options follow */
} __attribute__ ((__packed__));
#define dh6_msgtype dh6_msgtypexid.m
#define DH6_XIDMASK 0x00ffffff
/* option */
-#define DH6OPT_DUID 1 /* TBD */
-#define DH6OPT_DNS 11 /* TBD */
+#define DH6OPT_CLIENTID 1
+#define DH6OPT_SERVERID 2
+#define DH6OPT_IA 3
+#define DH6OPT_IA_TMP 4
+#define DH6OPT_IADDR 5
+#define DH6OPT_ORO 6
+#define DH6OPT_PREFERENCE 7
+# define DH6OPT_PREF_UNDEF -1
+# define DH6OPT_PREF_MAX 255
+#define DH6OPT_ELAPSED_TIME 8
+#define DH6OPT_CLIENT_MSG 9
+#define DH6OPT_SERVER_MSG 10
+#define DH6OPT_AUTH 11
+#define DH6OPT_UNICAST 12
+#define DH6OPT_STATUS_CODE 13
+# define DH6OPT_STCODE_SUCCESS 0
+# define DH6OPT_STCODE_UNSPECFAIL 1
+# define DH6OPT_STCODE_AUTHFAILED 2
+# define DH6OPT_STCODE_ADDRUNAVAIL 3
+# define DH6OPT_STCODE_NOADDRAVAIL 4
+# define DH6OPT_STCODE_NOBINDING 5
+# define DH6OPT_STCODE_CONFNOMATCH 6
+# define DH6OPT_STCODE_NOTONLINK 7
+# define DH6OPT_STCODE_USEMULTICAST 8
+#define DH6OPT_RAPID_COMMIT 14
+#define DH6OPT_USER_CLASS 15
+#define DH6OPT_VENDOR_CLASS 16
+#define DH6OPT_VENDOR_OPTS 17
+#define DH6OPT_INTERFACE_ID 18
+#define DH6OPT_RECONF_MSG 19
+
+/*
+ * The option type has not been assigned for the following options.
+ * We temporarily adopt values used in the service specification document
+ * (200206xx version) by NTT Communications.
+ * Note that we'll change the following definitions if different type values
+ * are officially assigned.
+ */
+#define DH6OPT_DNS 25
+#define DH6OPT_PREFIX_DELEGATION 30
+#define DH6OPT_PREFIX_INFORMATION 31
+#define DH6OPT_PREFIX_REQUEST 32
+
struct dhcp6opt {
u_int16_t dh6opt_type;
u_int16_t dh6opt_len;
/* type-dependent data follows */
} __attribute__ ((__packed__));
+static char *
+dhcp6opt_name(int type)
+{
+ static char genstr[sizeof("opt_65535") + 1]; /* XXX thread unsafe */
+
+ if (type > 65535)
+ return "INVALID option";
+
+ switch(type) {
+ case DH6OPT_CLIENTID:
+ return "client ID";
+ case DH6OPT_SERVERID:
+ return "server ID";
+ case DH6OPT_ORO:
+ return "option request";
+ case DH6OPT_PREFERENCE:
+ return "preference";
+ case DH6OPT_STATUS_CODE:
+ return "status code";
+ case DH6OPT_RAPID_COMMIT:
+ return "rapid commit";
+ case DH6OPT_DNS:
+ return "DNS";
+ case DH6OPT_PREFIX_DELEGATION:
+ return "prefix delegation";
+ case DH6OPT_PREFIX_INFORMATION:
+ return "prefix information";
+ default:
+ sprintf(genstr, "opt_%d", type);
+ return(genstr);
+ }
+}
+
+static char *
+dhcp6stcode(int code)
+{
+ static char genstr[sizeof("code255") + 1]; /* XXX thread unsafe */
+
+ if (code > 255)
+ return "INVALID code";
+
+ switch(code) {
+ case DH6OPT_STCODE_SUCCESS:
+ return "success";
+ case DH6OPT_STCODE_UNSPECFAIL:
+ return "unspec failure";
+ case DH6OPT_STCODE_AUTHFAILED:
+ return "auth fail";
+ case DH6OPT_STCODE_ADDRUNAVAIL:
+ return "address unavailable";
+ case DH6OPT_STCODE_NOADDRAVAIL:
+ return "no addresses";
+ case DH6OPT_STCODE_NOBINDING:
+ return "no binding";
+ case DH6OPT_STCODE_CONFNOMATCH:
+ return "confirm no match";
+ case DH6OPT_STCODE_NOTONLINK:
+ return "not on-link";
+ case DH6OPT_STCODE_USEMULTICAST:
+ return "use multicast";
+ default:
+ sprintf(genstr, "code%d", code);
+ return(genstr);
+ }
+}
+
static void
dhcp6opt_print(u_char *cp, u_char *ep)
{
struct dhcp6opt *dh6o;
u_char *tp;
- int i;
+ int i, opttype;
size_t optlen;
+ u_int16_t val16;
+ u_int32_t val32;
+ struct in6_addr addr6;
if (cp == ep)
return;
optlen = ntohs(dh6o->dh6opt_len);
if (ep - cp < sizeof(*dh6o) + optlen)
goto trunc;
- switch (ntohs(dh6o->dh6opt_type)) {
- case DH6OPT_DUID:
- printf(" (duid"); /*)*/
+ opttype = ntohs(dh6o->dh6opt_type);
+ printf(" (%s", dhcp6opt_name(opttype));
+ switch (opttype) {
+ case DH6OPT_CLIENTID:
+ case DH6OPT_SERVERID:
if (optlen < 2) {
/*(*/
printf(" ??)");
switch (ntohs(*(u_int16_t *)tp)) {
case 1:
if (optlen >= 2 + 6) {
- printf(" hwaddr/time time %u type %u ",
- ntohl(*(u_int32_t *)&tp[2]),
- ntohs(*(u_int16_t *)&tp[6]));
+ printf(" hwaddr/time type %u time %u ",
+ ntohs(*(u_int16_t *)&tp[2]),
+ ntohl(*(u_int32_t *)&tp[4]));
for (i = 8; i < optlen; i++)
printf("%02x", tp[i]);
/*(*/
/*(*/
printf(" ??)");
}
+ break;
+ default:
+ printf(" type %d)", ntohs(*(u_int16_t *)tp));
+ break;
}
break;
+ case DH6OPT_ORO:
+ if (optlen % 2) {
+ printf(" ??)");
+ break;
+ }
+ tp = (u_char *)(dh6o + 1);
+ for (i = 0; i < optlen; i += 2) {
+ u_int16_t opt;
+
+ memcpy(&opt, &tp[i], sizeof(opt));
+ printf(" %s", dhcp6opt_name(ntohs(opt)));
+ }
+ printf(")");
+ break;
+ case DH6OPT_PREFERENCE:
+ if (optlen != 1) {
+ printf(" ??)");
+ break;
+ }
+ printf(" %d)", *((u_char *)(dh6o + 1) + 1));
+ break;
+ case DH6OPT_RAPID_COMMIT: /* nothing todo */
+ printf(")");
+ break;
case DH6OPT_DNS:
- printf(" (dnsserver"); /*)*/
if (optlen % 16) {
- /*(*/
printf(" ??)");
break;
}
tp = (u_char *)(dh6o + 1);
for (i = 0; i < optlen; i += 16)
printf(" %s", ip6addr_string(&tp[i]));
- /*(*/
printf(")");
+ break;
+ case DH6OPT_PREFIX_DELEGATION:
+ dhcp6opt_print((u_char *)(dh6o + 1),
+ (u_char *)(dh6o + 1) + optlen);
+ printf(")");
+ break;
+ case DH6OPT_PREFIX_INFORMATION:
+ if (optlen % 21)
+ printf(" ??)");
+ memcpy(&addr6, (u_char *)(dh6o + 1) + 5,
+ sizeof(addr6));
+ printf(" %s/%d", ip6addr_string(&addr6),
+ (int)*((u_char *)(dh6o + 1) + 4));
+ memcpy(&val32, dh6o + 1, sizeof(val32));
+ val32 = ntohl(val32);
+ if (val32 == DHCP6_DURATITION_INFINITE)
+ printf(" lease-duration: infinite)");
+ else
+ printf(" lease-duration: %u)", val32);
+ break;
+ case DH6OPT_STATUS_CODE:
+ if (optlen < 2)
+ printf(" ??)");
+ memcpy(&val16, (u_char *)(dh6o + 1), sizeof(val16));
+ val16 = ntohs(val16);
+ printf(" %s)", dhcp6stcode(val16));
+ break;
default:
- printf(" (opt-%u)", ntohs(dh6o->dh6opt_type));
+ printf(")", ntohs(dh6o->dh6opt_type));
break;
}
ep = (u_char *)snapend;
dh6 = (struct dhcp6 *)cp;
- TCHECK(dh6->dh6_servaddr);
+ TCHECK(dh6->dh6_xid);
switch (dh6->dh6_msgtype) {
+ case DH6_SOLICIT:
+ name = "solicit";
+ break;
+ case DH6_ADVERTISE:
+ name = "advertise";
+ break;
+ case DH6_REQUEST:
+ name = "request";
+ break;
+ case DH6_CONFIRM:
+ name = "confirm";
+ break;
+ case DH6_RENEW:
+ name = "renew";
+ break;
+ case DH6_REBIND:
+ name = "rebind";
+ break;
case DH6_REPLY:
name = "reply";
break;
else
printf(" msgtype-%u (", dh6->dh6_msgtype); /*)*/
printf("xid=%x", ntohl(dh6->dh6_xid) & DH6_XIDMASK);
- printf(" server=%s", ip6addr_string(&dh6->dh6_servaddr));
extp = (u_char *)(dh6 + 1);
dhcp6opt_print(extp, ep);
/*(*/
projects / tcpdump / commitdiff
