Annotation of embedaddon/strongswan/src/libcharon/kernel/kernel_handler.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2010 Tobias Brunner
! 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 "kernel_handler.h"
! 17:
! 18: #include <daemon.h>
! 19: #include <processing/jobs/acquire_job.h>
! 20: #include <processing/jobs/delete_child_sa_job.h>
! 21: #include <processing/jobs/migrate_job.h>
! 22: #include <processing/jobs/rekey_child_sa_job.h>
! 23: #include <processing/jobs/roam_job.h>
! 24: #include <processing/jobs/update_sa_job.h>
! 25:
! 26: typedef struct private_kernel_handler_t private_kernel_handler_t;
! 27:
! 28: /**
! 29: * Private data of a kernel_handler_t object.
! 30: */
! 31: struct private_kernel_handler_t {
! 32:
! 33: /**
! 34: * Public part of kernel_handler_t object.
! 35: */
! 36: kernel_handler_t public;
! 37: };
! 38:
! 39: /**
! 40: * convert an IP protocol identifier to the IKEv2 specific protocol identifier.
! 41: */
! 42: static inline protocol_id_t proto_ip2ike(uint8_t protocol)
! 43: {
! 44: switch (protocol)
! 45: {
! 46: case IPPROTO_ESP:
! 47: return PROTO_ESP;
! 48: case IPPROTO_AH:
! 49: return PROTO_AH;
! 50: default:
! 51: return protocol;
! 52: }
! 53: }
! 54:
! 55: METHOD(kernel_listener_t, acquire, bool,
! 56: private_kernel_handler_t *this, uint32_t reqid,
! 57: traffic_selector_t *src_ts, traffic_selector_t *dst_ts)
! 58: {
! 59: if (src_ts && dst_ts)
! 60: {
! 61: DBG1(DBG_KNL, "creating acquire job for policy %R === %R with "
! 62: "reqid {%u}", src_ts, dst_ts, reqid);
! 63: }
! 64: else
! 65: {
! 66: DBG1(DBG_KNL, "creating acquire job for policy with reqid {%u}", reqid);
! 67: }
! 68: lib->processor->queue_job(lib->processor,
! 69: (job_t*)acquire_job_create(reqid, src_ts, dst_ts));
! 70: return TRUE;
! 71: }
! 72:
! 73: METHOD(kernel_listener_t, expire, bool,
! 74: private_kernel_handler_t *this, uint8_t protocol, uint32_t spi,
! 75: host_t *dst, bool hard)
! 76: {
! 77: protocol_id_t proto = proto_ip2ike(protocol);
! 78:
! 79: DBG1(DBG_KNL, "creating %s job for CHILD_SA %N/0x%08x/%H",
! 80: hard ? "delete" : "rekey", protocol_id_names, proto, ntohl(spi), dst);
! 81:
! 82: if (hard)
! 83: {
! 84: lib->processor->queue_job(lib->processor,
! 85: (job_t*)delete_child_sa_job_create(proto, spi, dst, hard));
! 86: }
! 87: else
! 88: {
! 89: lib->processor->queue_job(lib->processor,
! 90: (job_t*)rekey_child_sa_job_create(proto, spi, dst));
! 91: }
! 92: return TRUE;
! 93: }
! 94:
! 95: METHOD(kernel_listener_t, mapping, bool,
! 96: private_kernel_handler_t *this, uint8_t protocol, uint32_t spi,
! 97: host_t *dst, host_t *remote)
! 98: {
! 99: protocol_id_t proto = proto_ip2ike(protocol);
! 100:
! 101: DBG1(DBG_KNL, "NAT mappings of CHILD_SA %N/0x%08x/%H changed to %#H, "
! 102: "queuing update job", protocol_id_names, proto, ntohl(spi), dst,
! 103: remote);
! 104:
! 105: lib->processor->queue_job(lib->processor,
! 106: (job_t*)update_sa_job_create(proto, spi, dst, remote));
! 107: return TRUE;
! 108: }
! 109:
! 110: METHOD(kernel_listener_t, migrate, bool,
! 111: private_kernel_handler_t *this, uint32_t reqid,
! 112: traffic_selector_t *src_ts, traffic_selector_t *dst_ts,
! 113: policy_dir_t direction, host_t *local, host_t *remote)
! 114: {
! 115: DBG1(DBG_KNL, "creating migrate job for policy %R === %R %N with reqid {%u}",
! 116: src_ts, dst_ts, policy_dir_names, direction, reqid, local);
! 117:
! 118: lib->processor->queue_job(lib->processor,
! 119: (job_t*)migrate_job_create(reqid, src_ts, dst_ts,
! 120: direction, local, remote));
! 121: return TRUE;
! 122: }
! 123:
! 124: METHOD(kernel_listener_t, roam, bool,
! 125: private_kernel_handler_t *this, bool address)
! 126: {
! 127: DBG2(DBG_KNL, "creating roam job %s",
! 128: address ? "due to address/link change" : "due to route change");
! 129:
! 130: lib->processor->queue_job(lib->processor, (job_t*)roam_job_create(address));
! 131: return TRUE;
! 132: }
! 133:
! 134: METHOD(kernel_handler_t, destroy, void,
! 135: private_kernel_handler_t *this)
! 136: {
! 137: charon->kernel->remove_listener(charon->kernel, &this->public.listener);
! 138: free(this);
! 139: }
! 140:
! 141: kernel_handler_t *kernel_handler_create()
! 142: {
! 143: private_kernel_handler_t *this;
! 144:
! 145: INIT(this,
! 146: .public = {
! 147: .listener = {
! 148: .acquire = _acquire,
! 149: .expire = _expire,
! 150: .mapping = _mapping,
! 151: .migrate = _migrate,
! 152: .roam = _roam,
! 153: },
! 154: .destroy = _destroy,
! 155: },
! 156: );
! 157:
! 158: charon->kernel->add_listener(charon->kernel, &this->public.listener);
! 159:
! 160: return &this->public;
! 161: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to kernel_handler.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / strongswan / src / libcharon / kernel