diff options
Diffstat (limited to 'src/libcharon/plugins/smp')
| -rw-r--r-- | src/libcharon/plugins/smp/Makefile.am | 17 | ||||
| -rw-r--r-- | src/libcharon/plugins/smp/Makefile.in | 586 | ||||
| -rw-r--r-- | src/libcharon/plugins/smp/smp.c | 768 | ||||
| -rw-r--r-- | src/libcharon/plugins/smp/smp.h | 45 |
4 files changed, 1416 insertions, 0 deletions
diff --git a/src/libcharon/plugins/smp/Makefile.am b/src/libcharon/plugins/smp/Makefile.am new file mode 100644 index 000000000..f17235835 --- /dev/null +++ b/src/libcharon/plugins/smp/Makefile.am @@ -0,0 +1,17 @@ + +INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libhydra \ + -I$(top_srcdir)/src/libcharon ${xml_CFLAGS} + +AM_CFLAGS = -rdynamic -DIPSEC_PIDDIR=\"${piddir}\" + +if MONOLITHIC +noinst_LTLIBRARIES = libstrongswan-smp.la +else +plugin_LTLIBRARIES = libstrongswan-smp.la +endif + +libstrongswan_smp_la_SOURCES = \ + smp.h smp.c + +libstrongswan_smp_la_LDFLAGS = -module -avoid-version +libstrongswan_smp_la_LIBADD = ${xml_LIBS} diff --git a/src/libcharon/plugins/smp/Makefile.in b/src/libcharon/plugins/smp/Makefile.in new file mode 100644 index 000000000..b88283f38 --- /dev/null +++ b/src/libcharon/plugins/smp/Makefile.in @@ -0,0 +1,586 @@ +# Makefile.in generated by automake 1.11 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkglibexecdir = $(libexecdir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : 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install-strip + +.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \ + clean-libtool clean-noinstLTLIBRARIES clean-pluginLTLIBRARIES \ + ctags distclean distclean-compile distclean-generic \ + distclean-libtool distclean-tags distdir dvi dvi-am html \ + html-am info info-am install install-am install-data \ + install-data-am install-dvi install-dvi-am install-exec \ + install-exec-am install-html install-html-am install-info \ + install-info-am install-man install-pdf install-pdf-am \ + install-pluginLTLIBRARIES install-ps install-ps-am \ + install-strip installcheck installcheck-am installdirs \ + maintainer-clean maintainer-clean-generic mostlyclean \ + mostlyclean-compile mostlyclean-generic mostlyclean-libtool \ + pdf pdf-am ps ps-am tags uninstall uninstall-am \ + uninstall-pluginLTLIBRARIES + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/libcharon/plugins/smp/smp.c b/src/libcharon/plugins/smp/smp.c new file mode 100644 index 000000000..64820eb45 --- /dev/null +++ b/src/libcharon/plugins/smp/smp.c @@ -0,0 +1,768 @@ +/* + * Copyright (C) 2007 Martin Willi + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include <stdlib.h> + +#include "smp.h" + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/socket.h> +#include <sys/un.h> +#include <unistd.h> +#include <errno.h> +#include <signal.h> +#include <libxml/xmlreader.h> +#include <libxml/xmlwriter.h> + +#include <library.h> +#include <daemon.h> +#include <threading/thread.h> +#include <processing/jobs/callback_job.h> + + +typedef struct private_smp_t private_smp_t; + +/** + * Private data of an smp_t object. + */ +struct private_smp_t { + + /** + * Public part of smp_t object. + */ + smp_t public; + + /** + * XML unix socket fd + */ + int socket; + + /** + * job accepting stroke messages + */ + callback_job_t *job; +}; + +ENUM(ike_sa_state_lower_names, IKE_CREATED, IKE_DELETING, + "created", + "connecting", + "established", + "rekeying", + "deleting", +); + +/** + * write a bool into element + */ +static void write_bool(xmlTextWriterPtr writer, char *element, bool val) +{ + xmlTextWriterWriteElement(writer, element, val ? "true" : "false"); +} + +/** + * write a identification_t into element + */ +static void write_id(xmlTextWriterPtr writer, char *element, identification_t *id) +{ + xmlTextWriterStartElement(writer, element); + switch (id->get_type(id)) + { + { + char *type = ""; + while (TRUE) + { + case ID_ANY: + type = "any"; + break; + case ID_IPV4_ADDR: + type = "ipv4"; + break; + case ID_IPV6_ADDR: + type = "ipv6"; + break; + case ID_FQDN: + type = "fqdn"; + break; + case ID_RFC822_ADDR: + type = "email"; + break; + case ID_DER_ASN1_DN: + type = "asn1dn"; + break; + case ID_DER_ASN1_GN: + type = "asn1gn"; + break; + } + xmlTextWriterWriteAttribute(writer, "type", type); + xmlTextWriterWriteFormatString(writer, "%Y", id); + break; + } + default: + /* TODO: base64 keyid */ + xmlTextWriterWriteAttribute(writer, "type", "keyid"); + break; + } + xmlTextWriterEndElement(writer); +} + +/** + * write a host_t address into an element + */ +static void write_address(xmlTextWriterPtr writer, char *element, host_t *host) +{ + xmlTextWriterStartElement(writer, element); + xmlTextWriterWriteAttribute(writer, "type", + host->get_family(host) == AF_INET ? "ipv4" : "ipv6"); + if (host->is_anyaddr(host)) + { /* do not use %any for XML */ + xmlTextWriterWriteFormatString(writer, "%s", + host->get_family(host) == AF_INET ? "0.0.0.0" : "::"); + } + else + { + xmlTextWriterWriteFormatString(writer, "%H", host); + } + xmlTextWriterEndElement(writer); +} + +/** + * write networks element + */ +static void write_networks(xmlTextWriterPtr writer, char *element, + linked_list_t *list) +{ + enumerator_t *enumerator; + traffic_selector_t *ts; + + xmlTextWriterStartElement(writer, element); + enumerator = list->create_enumerator(list); + while (enumerator->enumerate(enumerator, (void**)&ts)) + { + xmlTextWriterStartElement(writer, "network"); + xmlTextWriterWriteAttribute(writer, "type", + ts->get_type(ts) == TS_IPV4_ADDR_RANGE ? "ipv4" : "ipv6"); + xmlTextWriterWriteFormatString(writer, "%R", ts); + xmlTextWriterEndElement(writer); + } + enumerator->destroy(enumerator); + xmlTextWriterEndElement(writer); +} + +/** + * write a childEnd + */ +static void write_childend(xmlTextWriterPtr writer, child_sa_t *child, bool local) +{ + linked_list_t *list; + + xmlTextWriterWriteFormatElement(writer, "spi", "%lx", + htonl(child->get_spi(child, local))); + list = child->get_traffic_selectors(child, local); + write_networks(writer, "networks", list); +} + +/** + * write a child_sa_t + */ +static void write_child(xmlTextWriterPtr writer, child_sa_t *child) +{ + child_cfg_t *config; + + config = child->get_config(child); + + xmlTextWriterStartElement(writer, "childsa"); + xmlTextWriterWriteFormatElement(writer, "reqid", "%d", + child->get_reqid(child)); + xmlTextWriterWriteFormatElement(writer, "childconfig", "%s", + config->get_name(config)); + xmlTextWriterStartElement(writer, "local"); + write_childend(writer, child, TRUE); + xmlTextWriterEndElement(writer); + xmlTextWriterStartElement(writer, "remote"); + write_childend(writer, child, FALSE); + xmlTextWriterEndElement(writer); + xmlTextWriterEndElement(writer); +} + +/** + * process a ikesalist query request message + */ +static void request_query_ikesa(xmlTextReaderPtr reader, xmlTextWriterPtr writer) +{ + enumerator_t *enumerator; + ike_sa_t *ike_sa; + + /* <ikesalist> */ + xmlTextWriterStartElement(writer, "ikesalist"); + + enumerator = charon->controller->create_ike_sa_enumerator(charon->controller); + while (enumerator->enumerate(enumerator, &ike_sa)) + { + ike_sa_id_t *id; + host_t *local, *remote; + iterator_t *children; + child_sa_t *child_sa; + + id = ike_sa->get_id(ike_sa); + + xmlTextWriterStartElement(writer, "ikesa"); + xmlTextWriterWriteFormatElement(writer, "id", "%d", + ike_sa->get_unique_id(ike_sa)); + xmlTextWriterWriteFormatElement(writer, "status", "%N", + ike_sa_state_lower_names, ike_sa->get_state(ike_sa)); + xmlTextWriterWriteElement(writer, "role", + id->is_initiator(id) ? "initiator" : "responder"); + xmlTextWriterWriteElement(writer, "peerconfig", ike_sa->get_name(ike_sa)); + + /* <local> */ + local = ike_sa->get_my_host(ike_sa); + xmlTextWriterStartElement(writer, "local"); + xmlTextWriterWriteFormatElement(writer, "spi", "%.16llx", + id->is_initiator(id) ? id->get_initiator_spi(id) + : id->get_responder_spi(id)); + write_id(writer, "identification", ike_sa->get_my_id(ike_sa)); + write_address(writer, "address", local); + xmlTextWriterWriteFormatElement(writer, "port", "%d", + local->get_port(local)); + if (ike_sa->supports_extension(ike_sa, EXT_NATT)) + { + write_bool(writer, "nat", ike_sa->has_condition(ike_sa, COND_NAT_HERE)); + } + xmlTextWriterEndElement(writer); + /* </local> */ + + /* <remote> */ + remote = ike_sa->get_other_host(ike_sa); + xmlTextWriterStartElement(writer, "remote"); + xmlTextWriterWriteFormatElement(writer, "spi", "%.16llx", + id->is_initiator(id) ? id->get_responder_spi(id) + : id->get_initiator_spi(id)); + write_id(writer, "identification", ike_sa->get_other_id(ike_sa)); + write_address(writer, "address", remote); + xmlTextWriterWriteFormatElement(writer, "port", "%d", + remote->get_port(remote)); + if (ike_sa->supports_extension(ike_sa, EXT_NATT)) + { + write_bool(writer, "nat", ike_sa->has_condition(ike_sa, COND_NAT_THERE)); + } + xmlTextWriterEndElement(writer); + /* </remote> */ + + /* <childsalist> */ + xmlTextWriterStartElement(writer, "childsalist"); + children = ike_sa->create_child_sa_iterator(ike_sa); + while (children->iterate(children, (void**)&child_sa)) + { + write_child(writer, child_sa); + } + children->destroy(children); + /* </childsalist> */ + xmlTextWriterEndElement(writer); + + /* </ikesa> */ + xmlTextWriterEndElement(writer); + } + enumerator->destroy(enumerator); + + /* </ikesalist> */ + xmlTextWriterEndElement(writer); +} + +/** + * process a configlist query request message + */ +static void request_query_config(xmlTextReaderPtr reader, xmlTextWriterPtr writer) +{ + enumerator_t *enumerator; + peer_cfg_t *peer_cfg; + + /* <configlist> */ + xmlTextWriterStartElement(writer, "configlist"); + + enumerator = charon->backends->create_peer_cfg_enumerator(charon->backends, + NULL, NULL, NULL, NULL); + while (enumerator->enumerate(enumerator, &peer_cfg)) + { + enumerator_t *children; + child_cfg_t *child_cfg; + ike_cfg_t *ike_cfg; + linked_list_t *list; + + if (peer_cfg->get_ike_version(peer_cfg) != 2) + { /* only IKEv2 connections yet */ + continue; + } + + /* <peerconfig> */ + xmlTextWriterStartElement(writer, "peerconfig"); + xmlTextWriterWriteElement(writer, "name", peer_cfg->get_name(peer_cfg)); + + /* TODO: write auth_cfgs */ + + /* <ikeconfig> */ + ike_cfg = peer_cfg->get_ike_cfg(peer_cfg); + xmlTextWriterStartElement(writer, "ikeconfig"); + xmlTextWriterWriteElement(writer, "local", ike_cfg->get_my_addr(ike_cfg)); + xmlTextWriterWriteElement(writer, "remote", ike_cfg->get_other_addr(ike_cfg)); + xmlTextWriterEndElement(writer); + /* </ikeconfig> */ + + /* <childconfiglist> */ + xmlTextWriterStartElement(writer, "childconfiglist"); + children = peer_cfg->create_child_cfg_enumerator(peer_cfg); + while (children->enumerate(children, &child_cfg)) + { + /* <childconfig> */ + xmlTextWriterStartElement(writer, "childconfig"); + xmlTextWriterWriteElement(writer, "name", + child_cfg->get_name(child_cfg)); + list = child_cfg->get_traffic_selectors(child_cfg, TRUE, NULL, NULL); + write_networks(writer, "local", list); + list->destroy_offset(list, offsetof(traffic_selector_t, destroy)); + list = child_cfg->get_traffic_selectors(child_cfg, FALSE, NULL, NULL); + write_networks(writer, "remote", list); + list->destroy_offset(list, offsetof(traffic_selector_t, destroy)); + xmlTextWriterEndElement(writer); + /* </childconfig> */ + } + children->destroy(children); + /* </childconfiglist> */ + xmlTextWriterEndElement(writer); + /* </peerconfig> */ + xmlTextWriterEndElement(writer); + } + enumerator->destroy(enumerator); + /* </configlist> */ + xmlTextWriterEndElement(writer); +} + +/** + * callback which logs to a XML writer + */ +static bool xml_callback(xmlTextWriterPtr writer, debug_t group, level_t level, + ike_sa_t* ike_sa, char* format, va_list args) +{ + if (level <= 1) + { + /* <item> */ + xmlTextWriterStartElement(writer, "item"); + xmlTextWriterWriteFormatAttribute(writer, "level", "%d", level); + xmlTextWriterWriteFormatAttribute(writer, "source", "%N", debug_names, group); + xmlTextWriterWriteFormatAttribute(writer, "thread", "%u", thread_current_id()); + xmlTextWriterWriteVFormatString(writer, format, args); + xmlTextWriterEndElement(writer); + /* </item> */ + } + return TRUE; +} + +/** + * process a *terminate control request message + */ +static void request_control_terminate(xmlTextReaderPtr reader, + xmlTextWriterPtr writer, bool ike) +{ + if (xmlTextReaderRead(reader) && + xmlTextReaderNodeType(reader) == XML_READER_TYPE_TEXT) + { + const char *str; + u_int32_t id; + status_t status; + + str = xmlTextReaderConstValue(reader); + if (str == NULL) + { + DBG1(DBG_CFG, "error parsing XML id string"); + return; + } + id = atoi(str); + if (!id) + { + enumerator_t *enumerator; + ike_sa_t *ike_sa; + + enumerator = charon->controller->create_ike_sa_enumerator(charon->controller); + while (enumerator->enumerate(enumerator, &ike_sa)) + { + if (streq(str, ike_sa->get_name(ike_sa))) + { + ike = TRUE; + id = ike_sa->get_unique_id(ike_sa); + break; + } + } + enumerator->destroy(enumerator); + } + if (!id) + { + DBG1(DBG_CFG, "error parsing XML id string"); + return; + } + + DBG1(DBG_CFG, "terminating %s_SA %d", ike ? "IKE" : "CHILD", id); + + /* <log> */ + xmlTextWriterStartElement(writer, "log"); + if (ike) + { + status = charon->controller->terminate_ike( + charon->controller, id, + (controller_cb_t)xml_callback, writer); + } + else + { + status = charon->controller->terminate_child( + charon->controller, id, + (controller_cb_t)xml_callback, writer); + } + /* </log> */ + xmlTextWriterEndElement(writer); + xmlTextWriterWriteFormatElement(writer, "status", "%d", status); + } +} + +/** + * process a *initiate control request message + */ +static void request_control_initiate(xmlTextReaderPtr reader, + xmlTextWriterPtr writer, bool ike) +{ + if (xmlTextReaderRead(reader) && + xmlTextReaderNodeType(reader) == XML_READER_TYPE_TEXT) + { + const char *str; + status_t status = FAILED; + peer_cfg_t *peer; + child_cfg_t *child = NULL; + enumerator_t *enumerator; + + str = xmlTextReaderConstValue(reader); + if (str == NULL) + { + DBG1(DBG_CFG, "error parsing XML config name string"); + return; + } + DBG1(DBG_CFG, "initiating %s_SA %s", ike ? "IKE" : "CHILD", str); + + /* <log> */ + xmlTextWriterStartElement(writer, "log"); + peer = charon->backends->get_peer_cfg_by_name(charon->backends, (char*)str); + if (peer) + { + enumerator = peer->create_child_cfg_enumerator(peer); + if (ike) + { + if (!enumerator->enumerate(enumerator, &child)) + { + child = NULL; + } + child->get_ref(child); + } + else + { + while (enumerator->enumerate(enumerator, &child)) + { + if (streq(child->get_name(child), str)) + { + child->get_ref(child); + break; + } + child = NULL; + } + } + enumerator->destroy(enumerator); + if (child) + { + status = charon->controller->initiate(charon->controller, + peer, child, (controller_cb_t)xml_callback, + writer); + } + else + { + peer->destroy(peer); + } + } + /* </log> */ + xmlTextWriterEndElement(writer); + xmlTextWriterWriteFormatElement(writer, "status", "%d", status); + } +} + +/** + * process a query request + */ +static void request_query(xmlTextReaderPtr reader, xmlTextWriterPtr writer) +{ + /* <query> */ + xmlTextWriterStartElement(writer, "query"); + while (xmlTextReaderRead(reader)) + { + if (xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT) + { + if (streq(xmlTextReaderConstName(reader), "ikesalist")) + { + request_query_ikesa(reader, writer); + break; + } + if (streq(xmlTextReaderConstName(reader), "configlist")) + { + request_query_config(reader, writer); + break; + } + } + } + /* </query> */ + xmlTextWriterEndElement(writer); +} + +/** + * process a control request + */ +static void request_control(xmlTextReaderPtr reader, xmlTextWriterPtr writer) +{ + /* <control> */ + xmlTextWriterStartElement(writer, "control"); + while (xmlTextReaderRead(reader)) + { + if (xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT) + { + if (streq(xmlTextReaderConstName(reader), "ikesaterminate")) + { + request_control_terminate(reader, writer, TRUE); + break; + } + if (streq(xmlTextReaderConstName(reader), "childsaterminate")) + { + request_control_terminate(reader, writer, FALSE); + break; + } + if (streq(xmlTextReaderConstName(reader), "ikesainitiate")) + { + request_control_initiate(reader, writer, TRUE); + break; + } + if (streq(xmlTextReaderConstName(reader), "childsainitiate")) + { + request_control_initiate(reader, writer, FALSE); + break; + } + } + } + /* </control> */ + xmlTextWriterEndElement(writer); +} + +/** + * process a request message + */ +static void request(xmlTextReaderPtr reader, char *id, int fd) +{ + xmlTextWriterPtr writer; + + writer = xmlNewTextWriter(xmlOutputBufferCreateFd(fd, NULL)); + if (writer == NULL) + { + DBG1(DBG_CFG, "opening SMP XML writer failed"); + return; + } + + xmlTextWriterStartDocument(writer, NULL, NULL, NULL); + /* <message xmlns="http://www.strongswan.org/smp/1.0" + id="id" type="response"> */ + xmlTextWriterStartElement(writer, "message"); + xmlTextWriterWriteAttribute(writer, "xmlns", + "http://www.strongswan.org/smp/1.0"); + xmlTextWriterWriteAttribute(writer, "id", id); + xmlTextWriterWriteAttribute(writer, "type", "response"); + + while (xmlTextReaderRead(reader)) + { + if (xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT) + { + if (streq(xmlTextReaderConstName(reader), "query")) + { + request_query(reader, writer); + break; + } + if (streq(xmlTextReaderConstName(reader), "control")) + { + request_control(reader, writer); + break; + } + } + } + /* </message> and close document */ + xmlTextWriterEndDocument(writer); + xmlFreeTextWriter(writer); +} + +/** + * cleanup helper function for open file descriptors + */ +static void closefdp(int *fd) +{ + close(*fd); +} + +/** + * read from a opened connection and process it + */ +static job_requeue_t process(int *fdp) +{ + int fd = *fdp; + bool oldstate; + char buffer[4096]; + size_t len; + xmlTextReaderPtr reader; + char *id = NULL, *type = NULL; + + thread_cleanup_push((thread_cleanup_t)closefdp, (void*)&fd); + oldstate = thread_cancelability(TRUE); + len = read(fd, buffer, sizeof(buffer)); + thread_cancelability(oldstate); + thread_cleanup_pop(FALSE); + if (len <= 0) + { + close(fd); + DBG2(DBG_CFG, "SMP XML connection closed"); + return JOB_REQUEUE_NONE; + } + DBG3(DBG_CFG, "got XML request: %b", buffer, len); + + reader = xmlReaderForMemory(buffer, len, NULL, NULL, 0); + if (reader == NULL) + { + DBG1(DBG_CFG, "opening SMP XML reader failed"); + return JOB_REQUEUE_FAIR;; + } + + /* read message type and id */ + while (xmlTextReaderRead(reader)) + { + if (xmlTextReaderNodeType(reader) == XML_READER_TYPE_ELEMENT && + streq(xmlTextReaderConstName(reader), "message")) + { + id = xmlTextReaderGetAttribute(reader, "id"); + type = xmlTextReaderGetAttribute(reader, "type"); + break; + } + } + + /* process message */ + if (id && type) + { + if (streq(type, "request")) + { + request(reader, id, fd); + } + else + { + /* response(reader, id) */ + } + } + xmlFreeTextReader(reader); + return JOB_REQUEUE_FAIR;; +} + +/** + * accept from XML socket and create jobs to process connections + */ +static job_requeue_t dispatch(private_smp_t *this) +{ + struct sockaddr_un strokeaddr; + int fd, *fdp, strokeaddrlen = sizeof(strokeaddr); + callback_job_t *job; + bool oldstate; + + /* wait for connections, but allow thread to terminate */ + oldstate = thread_cancelability(TRUE); + fd = accept(this->socket, (struct sockaddr *)&strokeaddr, &strokeaddrlen); + thread_cancelability(oldstate); + + if (fd < 0) + { + DBG1(DBG_CFG, "accepting SMP XML socket failed: %s", strerror(errno)); + sleep(1); + return JOB_REQUEUE_FAIR;; + } + + fdp = malloc_thing(int); + *fdp = fd; + job = callback_job_create((callback_job_cb_t)process, fdp, free, this->job); + charon->processor->queue_job(charon->processor, (job_t*)job); + + return JOB_REQUEUE_DIRECT; +} + +/** + * Implementation of itnerface_t.destroy. + */ +static void destroy(private_smp_t *this) +{ + this->job->cancel(this->job); + close(this->socket); + free(this); +} + +/* + * Described in header file + */ +plugin_t *smp_plugin_create() +{ + struct sockaddr_un unix_addr = { AF_UNIX, IPSEC_PIDDIR "/charon.xml"}; + private_smp_t *this = malloc_thing(private_smp_t); + mode_t old; + + this->public.plugin.destroy = (void (*)(plugin_t*))destroy; + + /* set up unix socket */ + this->socket = socket(AF_UNIX, SOCK_STREAM, 0); + if (this->socket == -1) + { + DBG1(DBG_CFG, "could not create XML socket"); + free(this); + return NULL; + } + + unlink(unix_addr.sun_path); + old = umask(~(S_IRWXU | S_IRWXG)); + if (bind(this->socket, (struct sockaddr *)&unix_addr, sizeof(unix_addr)) < 0) + { + DBG1(DBG_CFG, "could not bind XML socket: %s", strerror(errno)); + close(this->socket); + free(this); + return NULL; + } + umask(old); + if (chown(unix_addr.sun_path, charon->uid, charon->gid) != 0) + { + DBG1(DBG_CFG, "changing XML socket permissions failed: %s", strerror(errno)); + } + + if (listen(this->socket, 5) < 0) + { + DBG1(DBG_CFG, "could not listen on XML socket: %s", strerror(errno)); + close(this->socket); + free(this); + return NULL; + } + + this->job = callback_job_create((callback_job_cb_t)dispatch, this, NULL, NULL); + charon->processor->queue_job(charon->processor, (job_t*)this->job); + + return &this->public.plugin; +} + diff --git a/src/libcharon/plugins/smp/smp.h b/src/libcharon/plugins/smp/smp.h new file mode 100644 index 000000000..74c85fb5f --- /dev/null +++ b/src/libcharon/plugins/smp/smp.h @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2007-2008 Martin Willi + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup smp smp + * @ingroup cplugins + * + * @defgroup smp_i smp + * @{ @ingroup smp + */ + +#ifndef SMP_H_ +#define SMP_H_ + +#include <plugins/plugin.h> + +typedef struct smp_t smp_t; + +/** + * SMP configuration and control interface. + * + * The SMP interface uses a socket and a to communicate. The syntax is strict + * XML, defined in the schema.xml specification. + */ +struct smp_t { + + /** + * implements the plugin interface. + */ + plugin_t plugin; +}; + +#endif /** XML_H_ @}*/ |