Annotation of embedaddon/strongswan/src/libcharon/processing/jobs/inactivity_job.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2010 Martin Willi
! 3: * HSR Hochschule fuer Technik Rapperswil
! 4: *
! 5: * This program is free software; you can redistribute it and/or modify it
! 6: * under the terms of the GNU General Public License as published by the
! 7: * Free Software Foundation; either version 2 of the License, or (at your
! 8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
! 9: *
! 10: * This program is distributed in the hope that it will be useful, but
! 11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
! 13: * for more details.
! 14: */
! 15:
! 16: #include "inactivity_job.h"
! 17:
! 18: #include <daemon.h>
! 19:
! 20: typedef struct private_inactivity_job_t private_inactivity_job_t;
! 21:
! 22: /**
! 23: * Private data of an inactivity_job_t object.
! 24: */
! 25: struct private_inactivity_job_t {
! 26:
! 27: /**
! 28: * Public inactivity_job_t interface.
! 29: */
! 30: inactivity_job_t public;
! 31:
! 32: /**
! 33: * Unique CHILD_SA identifier to check
! 34: */
! 35: uint32_t id;
! 36:
! 37: /**
! 38: * Inactivity timeout
! 39: */
! 40: uint32_t timeout;
! 41:
! 42: /**
! 43: * Close IKE_SA if last remaining CHILD inactive?
! 44: */
! 45: bool close_ike;
! 46: };
! 47:
! 48: METHOD(job_t, destroy, void,
! 49: private_inactivity_job_t *this)
! 50: {
! 51: free(this);
! 52: }
! 53:
! 54: METHOD(job_t, execute, job_requeue_t,
! 55: private_inactivity_job_t *this)
! 56: {
! 57: ike_sa_t *ike_sa;
! 58: uint32_t reschedule = 0;
! 59:
! 60: ike_sa = charon->child_sa_manager->checkout_by_id(charon->child_sa_manager,
! 61: this->id, NULL);
! 62: if (ike_sa)
! 63: {
! 64: enumerator_t *enumerator;
! 65: child_sa_t *child_sa;
! 66: uint32_t delete = 0;
! 67: protocol_id_t proto = 0;
! 68: int children = 0;
! 69: status_t status = SUCCESS;
! 70:
! 71: enumerator = ike_sa->create_child_sa_enumerator(ike_sa);
! 72: while (enumerator->enumerate(enumerator, &child_sa))
! 73: {
! 74: if (child_sa->get_unique_id(child_sa) == this->id)
! 75: {
! 76: time_t in, out, install, diff;
! 77:
! 78: child_sa->get_usestats(child_sa, TRUE, &in, NULL, NULL);
! 79: child_sa->get_usestats(child_sa, FALSE, &out, NULL, NULL);
! 80: install = child_sa->get_installtime(child_sa);
! 81:
! 82: diff = time_monotonic(NULL) - max(max(in, out), install);
! 83:
! 84: if (diff >= this->timeout)
! 85: {
! 86: delete = child_sa->get_spi(child_sa, TRUE);
! 87: proto = child_sa->get_protocol(child_sa);
! 88: }
! 89: else
! 90: {
! 91: reschedule = this->timeout - diff;
! 92: }
! 93: }
! 94: children++;
! 95: }
! 96: enumerator->destroy(enumerator);
! 97:
! 98: if (delete)
! 99: {
! 100: if (children == 1 && this->close_ike)
! 101: {
! 102: DBG1(DBG_JOB, "deleting IKE_SA after %d seconds "
! 103: "of CHILD_SA inactivity", this->timeout);
! 104: status = ike_sa->delete(ike_sa, FALSE);
! 105: }
! 106: else
! 107: {
! 108: DBG1(DBG_JOB, "deleting CHILD_SA after %d seconds "
! 109: "of inactivity", this->timeout);
! 110: status = ike_sa->delete_child_sa(ike_sa, proto, delete, FALSE);
! 111: }
! 112: }
! 113: if (status == DESTROY_ME)
! 114: {
! 115: charon->ike_sa_manager->checkin_and_destroy(charon->ike_sa_manager,
! 116: ike_sa);
! 117: }
! 118: else
! 119: {
! 120: charon->ike_sa_manager->checkin(charon->ike_sa_manager, ike_sa);
! 121: }
! 122: }
! 123: if (reschedule)
! 124: {
! 125: return JOB_RESCHEDULE(reschedule);
! 126: }
! 127: return JOB_REQUEUE_NONE;
! 128: }
! 129:
! 130: METHOD(job_t, get_priority, job_priority_t,
! 131: private_inactivity_job_t *this)
! 132: {
! 133: return JOB_PRIO_MEDIUM;
! 134: }
! 135:
! 136: /**
! 137: * See header
! 138: */
! 139: inactivity_job_t *inactivity_job_create(uint32_t unique_id, uint32_t timeout,
! 140: bool close_ike)
! 141: {
! 142: private_inactivity_job_t *this;
! 143:
! 144: INIT(this,
! 145: .public = {
! 146: .job_interface = {
! 147: .execute = _execute,
! 148: .get_priority = _get_priority,
! 149: .destroy = _destroy,
! 150: },
! 151: },
! 152: .id = unique_id,
! 153: .timeout = timeout,
! 154: .close_ike = close_ike,
! 155: );
! 156:
! 157: return &this->public;
! 158: }
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