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-rw-r--r--dhcp6c_ia.c772
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diff --git a/dhcp6c_ia.c b/dhcp6c_ia.c
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+/* $KAME: dhcp6c_ia.c,v 1.33 2005/07/22 08:50:05 jinmei Exp $ */
+
+/*
+ * Copyright (C) 2003 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <sys/types.h>
+#include <sys/queue.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+
+#include <netinet/in.h>
+
+#include <syslog.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "dhcp6.h"
+#include "config.h"
+#include "common.h"
+#include "timer.h"
+#include "dhcp6c.h"
+#include "dhcp6c_ia.h"
+#include "prefixconf.h"
+#include "addrconf.h"
+
+typedef enum {IAS_ACTIVE, IAS_RENEW, IAS_REBIND} iastate_t;
+
+struct ia {
+ TAILQ_ENTRY(ia) link;
+
+ /* back pointer to configuration */
+ struct ia_conf *conf;
+
+ /* common parameters of IA */
+ u_int32_t t1; /* duration for renewal */
+ u_int32_t t2; /* duration for rebind */
+
+ /* internal parameters for renewal/rebinding */
+ iastate_t state;
+ struct dhcp6_timer *timer;
+ struct dhcp6_eventdata *evdata;
+
+ /* DHCP related parameters */
+ struct dhcp6_if *ifp; /* DHCP interface */
+ struct duid serverid; /* the server ID that provided this IA */
+
+ /* control information shared with each particular config routine */
+ struct iactl *ctl;
+
+ /* authentication parameters for transaction with servers on this IA */
+ struct authparam *authparam;
+};
+
+static int update_authparam __P((struct ia *, struct authparam *));
+static void reestablish_ia __P((struct ia *));
+static void callback __P((struct ia *));
+static int release_ia __P((struct ia *));
+static void remove_ia __P((struct ia *));
+static struct ia *get_ia __P((iatype_t, struct dhcp6_if *, struct ia_conf *,
+ struct dhcp6_listval *, struct duid *));
+static struct ia *find_ia __P((struct ia_conf *, iatype_t, u_int32_t));
+static struct dhcp6_timer *ia_timo __P((void *));
+
+static char *iastr __P((iatype_t));
+static char *statestr __P((iastate_t));
+
+void
+update_ia(iatype, ialist, ifp, serverid, authparam)
+ iatype_t iatype;
+ struct dhcp6_list *ialist;
+ struct dhcp6_if *ifp;
+ struct duid *serverid;
+ struct authparam *authparam;
+{
+ struct ia *ia;
+ struct ia_conf *iac;
+ struct iapd_conf *iapdc;
+ struct iana_conf *ianac;
+ struct dhcp6_listval *iav, *siav;
+ struct timeval timo;
+
+ for (iav = TAILQ_FIRST(ialist); iav; iav = TAILQ_NEXT(iav, link)) {
+ /* if we're not interested in this IA, ignore it. */
+ if ((iac = find_iaconf(&ifp->iaconf_list, iatype,
+ iav->val_ia.iaid)) == NULL) {
+ continue;
+ }
+
+ /* validate parameters */
+ /*
+ * If a client receives an IA_NA with T1 greater than T2, and
+ * both T1 and T2 are greater than 0, the client discards the
+ * IA_NA option and processes the remainder of the message as
+ * though the server had not included the invalid IA_NA option.
+ * [RFC3315 22.4]
+ * We apply the same rule to IA_PD as well.
+ */
+ if (iav->val_ia.t2 != 0 && iav->val_ia.t1 > iav->val_ia.t2) {
+ dprintf(LOG_INFO, FNAME,
+ "invalid IA: T1(%lu) > T2(%lu)",
+ iav->val_ia.t1, iav->val_ia.t2);
+ continue;
+ }
+
+ /* locate the local IA or make a new one */
+ ia = get_ia(iatype, ifp, iac, iav, serverid);
+ if (ia == NULL) {
+ dprintf(LOG_WARNING, FNAME, "failed to get an IA "
+ "type: %s, ID: %u", iastr(iac->type), iac->iaid);
+ continue;
+ }
+
+ /* update authentication parameters */
+ if (update_authparam(ia, authparam)) {
+ dprintf(LOG_WARNING, FNAME, "failed to update "
+ "authentication param for IA "
+ "type: %s, ID: %u", iastr(iac->type), iac->iaid);
+ remove_ia(ia);
+ continue;
+ }
+
+ /* update IA configuration information */
+ for (siav = TAILQ_FIRST(&iav->sublist); siav;
+ siav = TAILQ_NEXT(siav, link)) {
+ switch (siav->type) {
+ case DHCP6_LISTVAL_PREFIX6:
+ /* add or update the prefix */
+ iapdc = (struct iapd_conf *)iac;
+ if (update_prefix(ia, &siav->val_prefix6,
+ &iapdc->iapd_pif_list, ifp, &ia->ctl,
+ callback)) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to update a prefix %s/%d",
+ in6addr2str(&siav->val_prefix6.addr, 0),
+ siav->val_prefix6.plen);
+ }
+ break;
+ case DHCP6_LISTVAL_STATEFULADDR6:
+ ianac = (struct iana_conf *)iac;
+ if (update_address(ia, &siav->val_statefuladdr6,
+ ifp, &ia->ctl, callback)) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to update an address %s",
+ in6addr2str(&siav->val_statefuladdr6.addr, 0));
+ }
+ break;
+ case DHCP6_LISTVAL_STCODE:
+ dprintf(LOG_INFO, FNAME,
+ "status code for %s-%lu: %s",
+ iastr(iatype), iav->val_ia.iaid,
+ dhcp6_stcodestr(siav->val_num16));
+ if ((ia->state == IAS_RENEW ||
+ ia->state == IAS_REBIND) &&
+ siav->val_num16 == DH6OPT_STCODE_NOBINDING) {
+ /*
+ * For each IA in the original Renew or
+ * Rebind message, the client
+ * sends a Request message if the IA
+ * contained a Status Code option
+ * with the NoBinding status.
+ * [RFC3315 18.1.8]
+ * XXX: what about the PD case?
+ */
+ dprintf(LOG_INFO, FNAME,
+ "receive NoBinding against "
+ "renew/rebind for %s-%lu",
+ iastr(ia->conf->type),
+ ia->conf->iaid);
+ reestablish_ia(ia);
+ goto nextia;
+ }
+ break;
+ default:
+ dprintf(LOG_ERR, FNAME, "impossible case");
+ goto nextia;
+ }
+ }
+
+ /* see if this IA is still valid. if not, remove it. */
+ if (ia->ctl == NULL || !(*ia->ctl->isvalid)(ia->ctl)) {
+ dprintf(LOG_DEBUG, FNAME, "IA %s-%lu is invalidated",
+ iastr(ia->conf->type), ia->conf->iaid);
+ remove_ia(ia);
+ continue;
+ }
+
+ /* if T1 or T2 is 0, determine appropriate values locally. */
+ if (ia->t1 == 0 || ia->t2 == 0) {
+ u_int32_t duration;
+
+ if (ia->ctl && ia->ctl->duration)
+ duration = (*ia->ctl->duration)(ia->ctl);
+ else
+ duration = 1800; /* 30min. XXX: no rationale */
+
+ if (ia->t1 == 0) {
+ if (duration == DHCP6_DURATION_INFINITE)
+ ia->t1 = DHCP6_DURATION_INFINITE;
+ else
+ ia->t1 = duration / 2;
+ }
+ if (ia->t2 == 0) {
+ if (duration == DHCP6_DURATION_INFINITE)
+ ia->t2 = DHCP6_DURATION_INFINITE;
+ else
+ ia->t2 = duration * 4 / 5;
+ }
+
+ /* make sure T1 <= T2 */
+ if (ia->t1 > ia->t2)
+ ia->t1 = ia->t2 * 5 / 8;
+
+ dprintf(LOG_INFO, FNAME, "T1(%lu) and/or T2(%lu) "
+ "is locally determined", ia->t1, ia->t2);
+ }
+
+ /*
+ * Be proactive for too-small timeout values. Note that
+ * the adjusted values may make some information expire
+ * without renewal.
+ */
+ if (ia->t2 < DHCP6_DURATION_MIN) {
+ dprintf(LOG_INFO, FNAME, "T1 (%lu) or T2 (%lu) "
+ "is too small", ia->t1, ia->t2);
+ ia->t2 = DHCP6_DURATION_MIN;
+ ia->t1 = ia->t2 * 5 / 8;
+ dprintf(LOG_INFO, "", " adjusted to %lu and %lu",
+ ia->t1, ia->t2);
+ }
+
+ /* set up a timer for this IA. */
+ if (ia->t1 == DHCP6_DURATION_INFINITE) {
+ if (ia->timer)
+ dhcp6_remove_timer(&ia->timer);
+ } else {
+ if (ia->timer == NULL)
+ ia->timer = dhcp6_add_timer(ia_timo, ia);
+ if (ia->timer == NULL) {
+ dprintf(LOG_ERR, FNAME,
+ "failed to add IA timer");
+ remove_ia(ia); /* XXX */
+ continue;
+ }
+ timo.tv_sec = ia->t1;
+ timo.tv_usec = 0;
+ dhcp6_set_timer(&timo, ia->timer);
+ }
+
+ ia->state = IAS_ACTIVE;
+
+ nextia:
+ ;
+ }
+}
+
+static int
+update_authparam(ia, authparam)
+ struct ia *ia;
+ struct authparam *authparam;
+{
+ if (authparam == NULL)
+ return (0);
+
+ if (ia->authparam == NULL) {
+ if ((ia->authparam = copy_authparam(authparam)) == NULL) {
+ dprintf(LOG_WARNING, FNAME,
+ "failed to copy authparam");
+ return (-1);
+ }
+ return (0);
+ }
+
+ /* update the previous RD value and flags */
+ ia->authparam->prevrd = authparam->prevrd;
+ ia->authparam->flags = authparam->flags;
+
+ return (0);
+}
+
+static void
+reestablish_ia(ia)
+ struct ia *ia;
+{
+ struct dhcp6_ia iaparam;
+ struct dhcp6_event *ev;
+ struct dhcp6_eventdata *evd;
+
+ dprintf(LOG_DEBUG, FNAME, "re-establishing IA: %s-%lu",
+ iastr(ia->conf->type), ia->conf->iaid);
+
+ if (ia->state != IAS_RENEW && ia->state != IAS_REBIND) {
+ dprintf(LOG_ERR, FNAME, "internal error (invalid IA status)");
+ exit(1); /* XXX */
+ }
+
+ /* cancel the current event for the prefix. */
+ if (ia->evdata) {
+ TAILQ_REMOVE(&ia->evdata->event->data_list, ia->evdata, link);
+ if (ia->evdata->destructor)
+ ia->evdata->destructor(ia->evdata);
+ free(ia->evdata);
+ ia->evdata = NULL;
+ }
+
+ /* we don't need a timer for the IA (see comments in ia_timo()) */
+ if (ia->timer)
+ dhcp6_remove_timer(&ia->timer);
+
+ if ((ev = dhcp6_create_event(ia->ifp, DHCP6S_REQUEST)) == NULL) {
+ dprintf(LOG_NOTICE, FNAME, "failed to create a new event");
+ goto fail;
+ }
+ TAILQ_INSERT_TAIL(&ia->ifp->event_list, ev, link);
+
+ if ((ev->timer = dhcp6_add_timer(client6_timo, ev)) == NULL) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to create a new event timer");
+ goto fail;
+ }
+
+ if ((evd = malloc(sizeof(*evd))) == NULL) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to create a new event data");
+ goto fail;
+ }
+ memset(evd, 0, sizeof(*evd));
+ evd->event = ev;
+ TAILQ_INSERT_TAIL(&ev->data_list, evd, link);
+
+ if (duidcpy(&ev->serverid, &ia->serverid)) {
+ dprintf(LOG_NOTICE, FNAME, "failed to copy server ID");
+ goto fail;
+ }
+
+ iaparam.iaid = ia->conf->iaid;
+ iaparam.t1 = ia->t1;
+ iaparam.t2 = ia->t2;
+
+ if (ia->ctl && ia->ctl->reestablish_data) {
+ if ((*ia->ctl->reestablish_data)(ia->ctl, &iaparam,
+ &ia->evdata, evd)) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to make reestablish data");
+ goto fail;
+ }
+ }
+
+ if (ia->authparam != NULL) {
+ if ((ev->authparam = copy_authparam(ia->authparam)) == NULL) {
+ dprintf(LOG_WARNING, FNAME,
+ "failed to copy authparam");
+ goto fail;
+ }
+ }
+
+ ev->timeouts = 0;
+ dhcp6_set_timeoparam(ev);
+ dhcp6_reset_timer(ev);
+
+ ia->evdata = evd;
+
+ client6_send(ev);
+
+ return;
+
+ fail:
+ if (ev)
+ dhcp6_remove_event(ev);
+
+ return;
+}
+
+static void
+callback(ia)
+ struct ia *ia;
+{
+ /* see if this IA is still valid. if not, remove it. */
+ if (ia->ctl == NULL || !(*ia->ctl->isvalid)(ia->ctl)) {
+ dprintf(LOG_DEBUG, FNAME, "IA %s-%lu is invalidated",
+ iastr(ia->conf->type), ia->conf->iaid);
+ remove_ia(ia);
+ }
+}
+
+void
+release_all_ia(ifp)
+ struct dhcp6_if *ifp;
+{
+ struct ia_conf *iac;
+ struct ia *ia, *ia_next;
+
+ for (iac = TAILQ_FIRST(&ifp->iaconf_list); iac;
+ iac = TAILQ_NEXT(iac, link)) {
+ for (ia = TAILQ_FIRST(&iac->iadata); ia; ia = ia_next) {
+ ia_next = TAILQ_NEXT(ia, link);
+
+ (void)release_ia(ia);
+
+ /*
+ * The client MUST stop using all of the addresses
+ * being released as soon as the client begins the
+ * Release message exchange process.
+ * [RFC3315 Section 18.1.6]
+ */
+ remove_ia(ia);
+ }
+ }
+}
+
+static int
+release_ia(ia)
+ struct ia *ia;
+{
+ struct dhcp6_ia iaparam;
+ struct dhcp6_event *ev;
+ struct dhcp6_eventdata *evd;
+
+ dprintf(LOG_DEBUG, FNAME, "release an IA: %s-%lu",
+ iastr(ia->conf->type), ia->conf->iaid);
+
+ if ((ev = dhcp6_create_event(ia->ifp, DHCP6S_RELEASE))
+ == NULL) {
+ dprintf(LOG_NOTICE, FNAME, "failed to create a new event");
+ goto fail;
+ }
+ TAILQ_INSERT_TAIL(&ia->ifp->event_list, ev, link);
+
+
+ if ((ev->timer = dhcp6_add_timer(client6_timo, ev)) == NULL) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to create a new event timer");
+ goto fail;
+ }
+
+ if (duidcpy(&ev->serverid, &ia->serverid)) {
+ dprintf(LOG_NOTICE, FNAME, "failed to copy server ID");
+ goto fail;
+ }
+
+ if ((evd = malloc(sizeof(*evd))) == NULL) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to create a new event data");
+ goto fail;
+ }
+ memset(evd, 0, sizeof(*evd));
+ iaparam.iaid = ia->conf->iaid;
+ /* XXX: should we set T1/T2 to 0? spec is silent on this. */
+ iaparam.t1 = ia->t1;
+ iaparam.t2 = ia->t2;
+
+ if (ia->ctl && ia->ctl->release_data) {
+ if ((*ia->ctl->release_data)(ia->ctl, &iaparam, NULL, evd)) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to make release data");
+ goto fail;
+ }
+ }
+ TAILQ_INSERT_TAIL(&ev->data_list, evd, link);
+
+ ev->timeouts = 0;
+ dhcp6_set_timeoparam(ev);
+ dhcp6_reset_timer(ev);
+
+ if (ia->authparam != NULL) {
+ if ((ev->authparam = copy_authparam(ia->authparam)) == NULL) {
+ dprintf(LOG_WARNING, FNAME,
+ "failed to copy authparam");
+ goto fail;
+ }
+ }
+
+ client6_send(ev);
+
+ return (0);
+
+ fail:
+ if (ev)
+ dhcp6_remove_event(ev);
+
+ return (-1);
+}
+
+static void
+remove_ia(ia)
+ struct ia *ia;
+{
+ struct ia_conf *iac = ia->conf;
+ struct dhcp6_if *ifp = ia->ifp;
+
+ dprintf(LOG_DEBUG, FNAME, "remove an IA: %s-%lu",
+ iastr(ia->conf->type), ia->conf->iaid);
+
+ TAILQ_REMOVE(&iac->iadata, ia, link);
+
+ duidfree(&ia->serverid);
+
+ if (ia->timer)
+ dhcp6_remove_timer(&ia->timer);
+
+ if (ia->evdata) {
+ TAILQ_REMOVE(&ia->evdata->event->data_list, ia->evdata, link);
+ if (ia->evdata->destructor)
+ ia->evdata->destructor(ia->evdata);
+ free(ia->evdata);
+ ia->evdata = NULL;
+ }
+
+ if (ia->ctl && ia->ctl->cleanup)
+ (*ia->ctl->cleanup)(ia->ctl);
+
+ if (ia->authparam != NULL)
+ free(ia->authparam);
+
+ free(ia);
+
+ (void)client6_start(ifp);
+}
+
+static struct dhcp6_timer *
+ia_timo(arg)
+ void *arg;
+{
+ struct ia *ia = (struct ia *)arg;
+ struct dhcp6_ia iaparam;
+ struct dhcp6_event *ev;
+ struct dhcp6_eventdata *evd;
+ struct timeval timo;
+ int dhcpstate;
+
+ dprintf(LOG_DEBUG, FNAME, "IA timeout for %s-%lu, state=%s",
+ iastr(ia->conf->type), ia->conf->iaid, statestr(ia->state));
+
+ /* cancel the current event for the prefix. */
+ if (ia->evdata) {
+ TAILQ_REMOVE(&ia->evdata->event->data_list, ia->evdata, link);
+ if (ia->evdata->destructor)
+ ia->evdata->destructor(ia->evdata);
+ free(ia->evdata);
+ ia->evdata = NULL;
+ }
+
+ switch (ia->state) {
+ case IAS_ACTIVE:
+ ia->state = IAS_RENEW;
+ dhcpstate = DHCP6S_RENEW;
+ timo.tv_sec = ia->t1 < ia->t2 ? ia->t2 - ia->t1 : 0;
+ timo.tv_usec = 0;
+ dhcp6_set_timer(&timo, ia->timer);
+ break;
+ case IAS_RENEW:
+ ia->state = IAS_REBIND;
+ dhcpstate = DHCP6S_REBIND;
+
+ /*
+ * We need keep DUID for sending Release in this state.
+ * But we don't need a timer for the IA. We'll just wait for a
+ * reply for the REBIND until all associated configuration
+ * parameters for this IA expire.
+ */
+ dhcp6_remove_timer(&ia->timer);
+ break;
+ default:
+ dprintf(LOG_ERR, FNAME, "invalid IA state (%d)",
+ (int)ia->state);
+ return (NULL); /* XXX */
+ }
+
+ if ((ev = dhcp6_create_event(ia->ifp, dhcpstate)) == NULL) {
+ dprintf(LOG_NOTICE, FNAME, "failed to create a new event");
+ goto fail;
+ }
+ TAILQ_INSERT_TAIL(&ia->ifp->event_list, ev, link);
+
+ if ((ev->timer = dhcp6_add_timer(client6_timo, ev)) == NULL) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to create a new event timer");
+ goto fail;
+ }
+
+ if ((evd = malloc(sizeof(*evd))) == NULL) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to create a new event data");
+ goto fail;
+ }
+ memset(evd, 0, sizeof(*evd));
+ evd->event = ev;
+ TAILQ_INSERT_TAIL(&ev->data_list, evd, link);
+
+ if (ia->state == IAS_RENEW) {
+ if (duidcpy(&ev->serverid, &ia->serverid)) {
+ dprintf(LOG_NOTICE, FNAME, "failed to copy server ID");
+ goto fail;
+ }
+ }
+
+ iaparam.iaid = ia->conf->iaid;
+ iaparam.t1 = ia->t1;
+ iaparam.t2 = ia->t2;
+ switch(ia->state) {
+ case IAS_RENEW:
+ if (ia->ctl && ia->ctl->renew_data) {
+ if ((*ia->ctl->renew_data)(ia->ctl, &iaparam,
+ &ia->evdata, evd)) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to make renew data");
+ goto fail;
+ }
+ }
+ break;
+ case IAS_REBIND:
+ if (ia->ctl && ia->ctl->rebind_data) {
+ if ((*ia->ctl->rebind_data)(ia->ctl, &iaparam,
+ &ia->evdata, evd)) {
+ dprintf(LOG_NOTICE, FNAME,
+ "failed to make rebind data");
+ goto fail;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ ev->timeouts = 0;
+ dhcp6_set_timeoparam(ev);
+ dhcp6_reset_timer(ev);
+
+ if (ia->authparam != NULL) {
+ if ((ev->authparam = copy_authparam(ia->authparam)) == NULL) {
+ dprintf(LOG_WARNING, FNAME,
+ "failed to copy authparam");
+ goto fail;
+ }
+ }
+
+ ia->evdata = evd;
+
+ switch(ia->state) {
+ case IAS_RENEW:
+ case IAS_REBIND:
+ client6_send(ev);
+ break;
+ case IAS_ACTIVE:
+ /* what to do? */
+ break;
+ }
+
+ return (ia->timer);
+
+ fail:
+ if (ev)
+ dhcp6_remove_event(ev);
+
+ return (NULL);
+}
+
+static struct ia *
+get_ia(type, ifp, iac, iaparam, serverid)
+ iatype_t type;
+ struct dhcp6_if *ifp;
+ struct ia_conf *iac;
+ struct dhcp6_listval *iaparam;
+ struct duid *serverid;
+{
+ struct ia *ia;
+ struct duid newserver;
+ int create = 0;
+
+ if (duidcpy(&newserver, serverid)) {
+ dprintf(LOG_NOTICE, FNAME, "failed to copy server ID");
+ return (NULL);
+ }
+
+ if ((ia = find_ia(iac, type, iaparam->val_ia.iaid)) == NULL) {
+ if ((ia = malloc(sizeof(*ia))) == NULL) {
+ dprintf(LOG_NOTICE, FNAME, "memory allocation failed");
+ duidfree(&newserver); /* XXX */
+ return (NULL);
+ }
+ memset(ia, 0, sizeof(*ia));
+ ia->state = IAS_ACTIVE;
+
+ TAILQ_INSERT_TAIL(&iac->iadata, ia, link);
+ ia->conf = iac;
+
+ create = 1;
+ } else
+ duidfree(&ia->serverid);
+
+ ia->t1 = iaparam->val_ia.t1;
+ ia->t2 = iaparam->val_ia.t2;
+ ia->ifp = ifp;
+ ia->serverid = newserver;
+
+ dprintf(LOG_DEBUG, FNAME, "%s an IA: %s-%lu",
+ create ? "make" : "update", iastr(type), ia->conf->iaid);
+
+ return (ia);
+}
+
+static struct ia *
+find_ia(iac, type, iaid)
+ struct ia_conf *iac;
+ iatype_t type;
+ u_int32_t iaid;
+{
+ struct ia *ia;
+
+ for (ia = TAILQ_FIRST(&iac->iadata); ia;
+ ia = TAILQ_NEXT(ia, link)) {
+ if (ia->conf->type == type && ia->conf->iaid == iaid)
+ return (ia);
+ }
+
+ return (NULL);
+}
+
+static char *
+iastr(type)
+ iatype_t type;
+{
+ switch (type) {
+ case IATYPE_PD:
+ return ("PD");
+ case IATYPE_NA:
+ return ("NA");
+ default:
+ return ("???"); /* should be a bug */
+ }
+}
+
+static char *
+statestr(state)
+ iastate_t state;
+{
+ switch (state) {
+ case IAS_ACTIVE:
+ return "ACTIVE";
+ case IAS_RENEW:
+ return "RENEW";
+ case IAS_REBIND:
+ return "REBIND";
+ default:
+ return "???"; /* should be a bug */
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-07 22:45:38 +0000