#ifdef HAVE_GSSAPI
#include "gssapi.h"
#endif
+#include "power_mgmt.h"
static LIST_HEAD(_ph1tree_, ph1handle) ph1tree;
static LIST_HEAD(_ph2tree_, ph2handle) ph2tree;
struct ph1handle *p;
LIST_FOREACH(p, &ph1tree, chain) {
- if (p->status == PHASE1ST_EXPIRED)
+ if (p->is_dying || p->status == PHASE1ST_EXPIRED)
continue;
if (CMPSADDR(ph1->remote, p->remote) == 0) {
if (p == ph1)
EVT_PUSH(iph1->local, iph1->remote, EVTT_PHASE1_DOWN, NULL);
#ifdef ENABLE_NATT
-#ifndef __APPLE__
- if (iph1->natt_flags & NAT_KA_QUEUED)
- natt_keepalive_remove (iph1->local, iph1->remote);
-#endif /* __APPLE__ */
if (iph1->natt_options) {
racoon_free(iph1->natt_options);
iph1->natt_options = NULL;
gssapi_free_state(iph1);
#endif
-#ifdef __APPLE__
if (iph1->parent_session) {
ike_session_unlink_ph1_from_session(iph1);
}
unlink_rmconf_from_ph1(iph1->rmconf);
iph1->rmconf = NULL;
}
-#endif
racoon_free(iph1);
}
* flush isakmp-sa
*/
void
-flushph1(int ignore_established_handles)
+flushph1(int ignore_estab_or_assert_handles)
{
struct ph1handle *p, *next;
+ plog(LLV_DEBUG2, LOCATION, NULL,
+ "flushing ph1 handles: ignore_estab_or_assert %d...\n", ignore_estab_or_assert_handles);
+
for (p = LIST_FIRST(&ph1tree); p; p = next) {
next = LIST_NEXT(p, chain);
-
+
+ if (ignore_estab_or_assert_handles && p->parent_session && !p->parent_session->stopped_by_vpn_controller && p->parent_session->is_asserted) {
+ plog(LLV_DEBUG2, LOCATION, NULL,
+ "skipping phase1 %s that's asserted...\n",
+ isakmp_pindex(&p->index, 0));
+ continue;
+ }
+
/* send delete information */
if (p->status == PHASE1ST_ESTABLISHED) {
- if (ignore_established_handles &&
- (ike_session_has_negoing_ph2(p->parent_session) ||
- p->mode_cfg->flags)) {
+ if (ignore_estab_or_assert_handles &&
+ ike_session_has_negoing_ph2(p->parent_session)) {
plog(LLV_DEBUG2, LOCATION, NULL,
- "skipping ph1 handler that's established... because it's needed by children phase2s\n");
+ "skipping phase1 %s that's established... because it's needed by children phase2s\n",
+ isakmp_pindex(&p->index, 0));
continue;
}
/* send delete information */
plog(LLV_DEBUG2, LOCATION, NULL,
- "got a ph1 handler to flush...\n");
+ "got a phase1 %s to flush...\n",
+ isakmp_pindex(&p->index, 0));
isakmp_info_send_d1(p);
}
iph2->proposal = NULL;
}
-#ifdef __APPLE__
if (iph2->parent_session) {
ike_session_unlink_ph2_from_session(iph2);
}
vfree(iph2->ext_nat_id_p);
iph2->ext_nat_id_p = NULL;
}
-#endif
racoon_free(iph2);
}
}
void
-flushph2(int ignore_established_handles)
+flushph2(int ignore_estab_or_assert_handles)
{
struct ph2handle *p, *next;
plog(LLV_DEBUG2, LOCATION, NULL,
- "flushing all ph2 handlers...\n");
+ "flushing ph2 handles: ignore_estab_or_assert %d...\n", ignore_estab_or_assert_handles);
for (p = LIST_FIRST(&ph2tree); p; p = next) {
next = LIST_NEXT(p, chain);
if (p->is_dying || p->status == PHASE2ST_EXPIRED) {
continue;
}
+ if (ignore_estab_or_assert_handles && p->parent_session && !p->parent_session->stopped_by_vpn_controller && p->parent_session->is_asserted) {
+ plog(LLV_DEBUG2, LOCATION, NULL,
+ "skipping phase2 handle that's asserted...\n");
+ continue;
+ }
if (p->status == PHASE2ST_ESTABLISHED){
- if (ignore_established_handles) {
+ if (ignore_estab_or_assert_handles) {
plog(LLV_DEBUG2, LOCATION, NULL,
"skipping ph2 handler that's established...\n");
continue;
LIST_INIT(&ctdtree);
}
+time_t
+get_exp_retx_interval (int num_retries, int fixed_retry_interval)
+{
+ // first 3 retries aren't exponential
+ if (num_retries <= 3) {
+ return (time_t)fixed_retry_interval;
+ } else {
+ return (time_t)(num_retries * fixed_retry_interval);
+ }
+}
+
/*
* check the response has been sent to the peer. when not, simply reply
* the buffered packet to the peer.
{
vchar_t *hash;
struct recvdpkt *r;
- time_t t;
+ time_t t, d;
int len, s;
/* set current time */
if (s == -1)
return -1;
+ // don't send if we recently sent a response.
+ if (r->time_send && t > r->time_send) {
+ d = t - r->time_send;
+ if (d < r->retry_interval) {
+ plog(LLV_ERROR, LOCATION, NULL, "already responded within the past %ld secs\n", d);
+ return 1;
+ }
+ }
+
+#ifdef ENABLE_FRAG
+ if (r->frag_flags && r->sendbuf->l > ISAKMP_FRAG_MAXLEN) {
+ /* resend the packet if needed */
+ plog(LLV_ERROR, LOCATION, NULL, "!!! retransmitting frags\n");
+ len = sendfragsfromto(s, r->sendbuf,
+ r->local, r->remote, lcconf->count_persend,
+ r->frag_flags);
+ } else {
+ plog(LLV_ERROR, LOCATION, NULL, "!!! skipped retransmitting frags: frag_flags %x, r->sendbuf->l %d, max %d\n", r->frag_flags, r->sendbuf->l, ISAKMP_FRAG_MAXLEN);
+ /* resend the packet if needed */
+ len = sendfromto(s, r->sendbuf->v, r->sendbuf->l,
+ r->local, r->remote, lcconf->count_persend);
+ }
+#else
/* resend the packet if needed */
len = sendfromto(s, r->sendbuf->v, r->sendbuf->l,
r->local, r->remote, lcconf->count_persend);
+#endif
if (len == -1) {
plog(LLV_ERROR, LOCATION, NULL, "sendfromto failed\n");
return -1;
plog(LLV_DEBUG, LOCATION, NULL,
"deleted the retransmission packet to %s.\n",
saddr2str(remote));
- } else
+ } else {
r->time_send = t;
+ r->retry_interval = get_exp_retx_interval((lcconf->retry_counter - r->retry_counter),
+ lcconf->retry_interval);
+ }
return 1;
}
* adding a hash of received packet into the received list.
*/
int
-add_recvdpkt(remote, local, sbuf, rbuf, non_esp)
+add_recvdpkt(remote, local, sbuf, rbuf, non_esp, frag_flags)
struct sockaddr *remote, *local;
vchar_t *sbuf, *rbuf;
size_t non_esp;
+ u_int32_t frag_flags;
{
struct recvdpkt *new = NULL;
new->retry_counter = lcconf->retry_counter;
new->time_send = 0;
new->created = time(NULL);
+#ifdef ENABLE_FRAG
+ if (frag_flags) {
+ new->frag_flags = frag_flags;
+ }
+#endif
+ new->retry_interval = get_exp_retx_interval((lcconf->retry_counter - new->retry_counter),
+ lcconf->retry_interval);
LIST_INSERT_HEAD(&rcptree, new, chain);
{
int found = 0;
struct ph1handle *p;
-
+ struct ph2handle *p2;
+
+ LIST_FOREACH(p2, &ph2tree, chain) {
+ if (cmpsaddrwop(remote, p2->dst) == 0) {
+ plog(LLV_WARNING, LOCATION, NULL,
+ "in %s... purging phase2s\n", __FUNCTION__);
+ if (p2->status == PHASE2ST_ESTABLISHED)
+ isakmp_info_send_d2(p2);
+ if (p2->status < PHASE2ST_EXPIRED) {
+ isakmp_ph2expire(p2);
+ } else {
+ isakmp_ph2delete(p2);
+ }
+ found++;
+ }
+ }
+
LIST_FOREACH(p, &ph1tree, chain) {
if (cmpsaddrwop(remote, p->remote) == 0) {
plog(LLV_WARNING, LOCATION, NULL,
} else {
plog(LLV_DEBUG2, LOCATION, NULL, "skipping forced-DPD for phase1 (dpd already in progress).\n");
}
+ if (p->parent_session) {
+ p->parent_session->controller_awaiting_peer_resp = 1;
+ }
} else {
plog(LLV_DEBUG2, LOCATION, NULL, "skipping forced-DPD for phase1 (status %d, dying %d, dpd-support %d, dpd-interval %d).\n",
p->status, p->is_dying, p->dpd_support, p->rmconf->dpd_interval);
return status;
}
#endif
+
+void
+sweep_sleepwake(void)
+{
+ struct ph2handle *iph2;
+ struct ph1handle *iph1;
+
+ // do the ph1s.
+ LIST_FOREACH(iph1, &ph1tree, chain) {
+ if (iph1->parent_session && iph1->parent_session->is_asserted) {
+ plog(LLV_DEBUG2, LOCATION, NULL, "skipping sweep of phase1 %s because it's been asserted.\n",
+ isakmp_pindex(&iph1->index, 0));
+ continue;
+ }
+ if (iph1->is_dying || iph1->status >= PHASE1ST_EXPIRED) {
+ plog(LLV_DEBUG2, LOCATION, NULL, "skipping sweep of phase1 %s because it's already expired.\n",
+ isakmp_pindex(&iph1->index, 0));
+ continue;
+ }
+ if (iph1->sce) {
+ if (iph1->sce->xtime <= swept_at) {
+ SCHED_KILL(iph1->sce);
+ SCHED_KILL(iph1->sce_rekey);
+ iph1->is_dying = 1;
+ iph1->status = PHASE1ST_EXPIRED;
+ ike_session_update_ph1_ph2tree(iph1); // move unbind/rebind ph2s to from current ph1
+ iph1->sce = sched_new(1, isakmp_ph1delete_stub, iph1);
+ plog(LLV_DEBUG2, LOCATION, NULL, "phase1 %s expired while sleeping: quick deletion.\n",
+ isakmp_pindex(&iph1->index, 0));
+ }
+ }
+ if (iph1->sce_rekey) {
+ if (iph1->status == PHASE1ST_EXPIRED || iph1->sce_rekey->xtime <= swept_at) {
+ SCHED_KILL(iph1->sce_rekey);
+ }
+ }
+ if (iph1->scr) {
+ if (iph1->status == PHASE1ST_EXPIRED || iph1->scr->xtime <= swept_at) {
+ SCHED_KILL(iph1->scr);
+ }
+ }
+#ifdef ENABLE_DPD
+ if (iph1->dpd_r_u) {
+ if (iph1->status == PHASE1ST_EXPIRED || iph1->dpd_r_u->xtime <= swept_at) {
+ SCHED_KILL(iph1->dpd_r_u);
+ }
+ }
+#endif
+ }
+
+ // do ph2's next
+ LIST_FOREACH(iph2, &ph2tree, chain) {
+ if (iph2->parent_session && iph2->parent_session->is_asserted) {
+ plog(LLV_DEBUG2, LOCATION, NULL, "skipping sweep of phase2 because it's been asserted.\n");
+ continue;
+ }
+ if (iph2->is_dying || iph2->status >= PHASE2ST_EXPIRED) {
+ plog(LLV_DEBUG2, LOCATION, NULL, "skipping sweep of phase2 because it's already expired.\n");
+ continue;
+ }
+ if (iph2->sce) {
+ if (iph2->sce->xtime <= swept_at) {
+ iph2->status = PHASE2ST_EXPIRED;
+ iph2->is_dying = 1;
+ isakmp_ph2expire(iph2); // iph2 will go down 1 second later.
+ ike_session_stopped_by_controller(iph2->parent_session,
+ ike_session_stopped_by_sleepwake);
+ plog(LLV_DEBUG2, LOCATION, NULL, "phase2 expired while sleeping: quick deletion.\n");
+ }
+ }
+ if (iph2->scr) {
+ if (iph2->status == PHASE2ST_EXPIRED || iph2->scr->xtime <= swept_at) {
+ SCHED_KILL(iph2->scr);
+ }
+ }
+ }
+
+ // do the ike_session last
+ ike_session_sweep_sleepwake();
+}
projects / apple / ipsec.git / blobdiff