diff options
Diffstat (limited to 'src/libcharon/plugins/uci')
-rw-r--r-- | src/libcharon/plugins/uci/Makefile.am | 19 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/Makefile.in | 592 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_config.c | 361 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_config.h | 55 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_control.c | 301 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_control.h | 42 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_creds.c | 174 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_creds.h | 55 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_parser.c | 186 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_parser.h | 59 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_plugin.c | 93 | ||||
-rw-r--r-- | src/libcharon/plugins/uci/uci_plugin.h | 43 |
12 files changed, 1980 insertions, 0 deletions
diff --git a/src/libcharon/plugins/uci/Makefile.am b/src/libcharon/plugins/uci/Makefile.am new file mode 100644 index 000000000..6decdb9da --- /dev/null +++ b/src/libcharon/plugins/uci/Makefile.am @@ -0,0 +1,19 @@ + +INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libhydra \ + -I$(top_srcdir)/src/libcharon + +AM_CFLAGS = -rdynamic + +if MONOLITHIC +noinst_LTLIBRARIES = libstrongswan-uci.la +else +plugin_LTLIBRARIES = libstrongswan-uci.la +endif + +libstrongswan_uci_la_SOURCES = \ + uci_plugin.h uci_plugin.c uci_parser.h uci_parser.c \ + uci_config.h uci_config.c uci_creds.h uci_creds.c \ + uci_control.h uci_control.c + +libstrongswan_uci_la_LDFLAGS = -module -avoid-version +libstrongswan_uci_la_LIBADD = -luci diff --git a/src/libcharon/plugins/uci/Makefile.in b/src/libcharon/plugins/uci/Makefile.in new file mode 100644 index 000000000..c10829bb3 --- /dev/null +++ b/src/libcharon/plugins/uci/Makefile.in @@ -0,0 +1,592 @@ +# 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 = $(install_sh) -c +INSTALL_HEADER = 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+clean-generic: + +distclean-generic: + -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES) + -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES) + +maintainer-clean-generic: + @echo "This command is intended for maintainers to use" + @echo "it deletes files that may require special tools to rebuild." +clean: clean-am + +clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \ + clean-pluginLTLIBRARIES mostlyclean-am + +distclean: distclean-am + -rm -rf ./$(DEPDIR) + -rm -f Makefile +distclean-am: clean-am distclean-compile distclean-generic \ + distclean-tags + +dvi: dvi-am + +dvi-am: + +html: html-am + +html-am: + +info: info-am + +info-am: + +install-data-am: install-pluginLTLIBRARIES + +install-dvi: install-dvi-am + +install-dvi-am: + +install-exec-am: + +install-html: install-html-am + +install-html-am: + +install-info: install-info-am + +install-info-am: + +install-man: + +install-pdf: install-pdf-am + +install-pdf-am: + +install-ps: install-ps-am + +install-ps-am: + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -rf ./$(DEPDIR) + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-pluginLTLIBRARIES + +.MAKE: install-am 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/uci/uci_config.c b/src/libcharon/plugins/uci/uci_config.c new file mode 100644 index 000000000..bd58afbf0 --- /dev/null +++ b/src/libcharon/plugins/uci/uci_config.c @@ -0,0 +1,361 @@ +/* + * Copyright (C) 2008 Thomas Kallenberg + * Copyright (C) 2008 Tobias Brunner + * Copyright (C) 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. + */ + +#define _GNU_SOURCE +#include <string.h> + +#include "uci_config.h" +#include "uci_parser.h" + +#include <daemon.h> + +typedef struct private_uci_config_t private_uci_config_t; + +/** + * Private data of an uci_config_t object + */ +struct private_uci_config_t { + + /** + * Public part + */ + uci_config_t public; + + /** + * UCI parser context + */ + uci_parser_t *parser; +}; + +/** + * enumerator implementation for create_peer_cfg_enumerator + */ +typedef struct { + /** implements enumerator */ + enumerator_t public; + /** currently enumerated peer config */ + peer_cfg_t *peer_cfg; + /** inner uci_parser section enumerator */ + enumerator_t *inner; +} peer_enumerator_t; + +/** + * create a proposal from a string, with fallback to default + */ +static proposal_t *create_proposal(char *string, protocol_id_t proto) +{ + proposal_t *proposal = NULL; + + if (string) + { + proposal = proposal_create_from_string(proto, string); + } + if (!proposal) + { /* UCI default is aes/sha1 only */ + if (proto == PROTO_IKE) + { + proposal = proposal_create_from_string(proto, + "aes128-aes192-aes256-sha1-modp1536-modp2048"); + } + else + { + proposal = proposal_create_from_string(proto, + "aes128-aes192-aes256-sha1"); + } + } + return proposal; +} + +/** + * create an traffic selector, fallback to dynamic + */ +static traffic_selector_t *create_ts(char *string) +{ + if (string) + { + int netbits = 32; + host_t *net; + char *pos; + + string = strdupa(string); + pos = strchr(string, '/'); + if (pos) + { + *pos++ = '\0'; + netbits = atoi(pos); + } + else + { + if (strchr(string, ':')) + { + netbits = 128; + } + } + net = host_create_from_string(string, 0); + if (net) + { + return traffic_selector_create_from_subnet(net, netbits, 0, 0); + } + } + return traffic_selector_create_dynamic(0, 0, 65535); +} + +/** + * create a rekey time from a string with hours, with fallback + */ +static u_int create_rekey(char *string) +{ + u_int rekey = 0; + + if (string) + { + rekey = atoi(string); + if (rekey) + { + return rekey * 3600; + } + } + /* every 12 hours */ + return 12 * 3600; +} + +/** + * Implementation of peer_enumerator_t.public.enumerate + */ +static bool peer_enumerator_enumerate(peer_enumerator_t *this, peer_cfg_t **cfg) +{ + char *name, *ike_proposal, *esp_proposal, *ike_rekey, *esp_rekey; + char *local_id, *local_addr, *local_net; + char *remote_id, *remote_addr, *remote_net; + child_cfg_t *child_cfg; + ike_cfg_t *ike_cfg; + auth_cfg_t *auth; + lifetime_cfg_t lifetime = { + .time = { + .life = create_rekey(esp_rekey) + 300, + .rekey = create_rekey(esp_rekey), + .jitter = 300 + } + }; + + /* defaults */ + name = "unnamed"; + local_id = NULL; + remote_id = NULL; + local_addr = "0.0.0.0"; + remote_addr = "0.0.0.0"; + local_net = NULL; + remote_net = NULL; + ike_proposal = NULL; + esp_proposal = NULL; + ike_rekey = NULL; + esp_rekey = NULL; + + if (this->inner->enumerate(this->inner, &name, &local_id, &remote_id, + &local_addr, &remote_addr, &local_net, &remote_net, + &ike_proposal, &esp_proposal, &ike_rekey, &esp_rekey)) + { + DESTROY_IF(this->peer_cfg); + ike_cfg = ike_cfg_create(FALSE, FALSE, + local_addr, IKEV2_UDP_PORT, remote_addr, IKEV2_UDP_PORT); + ike_cfg->add_proposal(ike_cfg, create_proposal(ike_proposal, PROTO_IKE)); + this->peer_cfg = peer_cfg_create( + name, 2, ike_cfg, CERT_SEND_IF_ASKED, UNIQUE_NO, + 1, create_rekey(ike_rekey), 0, /* keytries, rekey, reauth */ + 1800, 900, /* jitter, overtime */ + TRUE, 60, /* mobike, dpddelay */ + NULL, NULL, /* vip, pool */ + FALSE, NULL, NULL); /* mediation, med by, peer id */ + auth = auth_cfg_create(); + auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PSK); + auth->add(auth, AUTH_RULE_IDENTITY, + identification_create_from_string(local_id)); + this->peer_cfg->add_auth_cfg(this->peer_cfg, auth, TRUE); + + auth = auth_cfg_create(); + auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PSK); + if (remote_id) + { + auth->add(auth, AUTH_RULE_IDENTITY, + identification_create_from_string(remote_id)); + } + this->peer_cfg->add_auth_cfg(this->peer_cfg, auth, FALSE); + + child_cfg = child_cfg_create(name, &lifetime, NULL, TRUE, MODE_TUNNEL, + ACTION_NONE, ACTION_NONE, FALSE, 0); + child_cfg->add_proposal(child_cfg, create_proposal(esp_proposal, PROTO_ESP)); + child_cfg->add_traffic_selector(child_cfg, TRUE, create_ts(local_net)); + child_cfg->add_traffic_selector(child_cfg, FALSE, create_ts(remote_net)); + this->peer_cfg->add_child_cfg(this->peer_cfg, child_cfg); + *cfg = this->peer_cfg; + return TRUE; + } + return FALSE; +} + +/** + * Implementation of peer_enumerator_t.public.destroy + */ +static void peer_enumerator_destroy(peer_enumerator_t *this) +{ + DESTROY_IF(this->peer_cfg); + this->inner->destroy(this->inner); + free(this); +} + +/** + * Implementation of backend_t.create_peer_cfg_enumerator. + */ +static enumerator_t* create_peer_cfg_enumerator(private_uci_config_t *this, + identification_t *me, + identification_t *other) +{ + peer_enumerator_t *e = malloc_thing(peer_enumerator_t); + + e->public.enumerate = (void*)peer_enumerator_enumerate; + e->public.destroy = (void*)peer_enumerator_destroy; + e->peer_cfg = NULL; + e->inner = this->parser->create_section_enumerator(this->parser, + "local_id", "remote_id", "local_addr", "remote_addr", + "local_net", "remote_net", "ike_proposal", "esp_proposal", + "ike_rekey", "esp_rekey", NULL); + if (!e->inner) + { + free(e); + return NULL; + } + return &e->public; +} + +/** + * enumerator implementation for create_ike_cfg_enumerator + */ +typedef struct { + /** implements enumerator */ + enumerator_t public; + /** currently enumerated ike config */ + ike_cfg_t *ike_cfg; + /** inner uci_parser section enumerator */ + enumerator_t *inner; +} ike_enumerator_t; + +/** + * Implementation of peer_enumerator_t.public.enumerate + */ +static bool ike_enumerator_enumerate(ike_enumerator_t *this, ike_cfg_t **cfg) +{ + char *local_addr, *remote_addr, *ike_proposal; + + /* defaults */ + local_addr = "0.0.0.0"; + remote_addr = "0.0.0.0"; + ike_proposal = NULL; + + if (this->inner->enumerate(this->inner, NULL, + &local_addr, &remote_addr, &ike_proposal)) + { + DESTROY_IF(this->ike_cfg); + this->ike_cfg = ike_cfg_create(FALSE, FALSE, local_addr, IKEV2_UDP_PORT, + remote_addr, IKEV2_UDP_PORT); + this->ike_cfg->add_proposal(this->ike_cfg, + create_proposal(ike_proposal, PROTO_IKE)); + + *cfg = this->ike_cfg; + return TRUE; + } + return FALSE; +} + +/** + * Implementation of ike_enumerator_t.public.destroy + */ +static void ike_enumerator_destroy(ike_enumerator_t *this) +{ + DESTROY_IF(this->ike_cfg); + this->inner->destroy(this->inner); + free(this); +} + +/** + * Implementation of backend_t.create_ike_cfg_enumerator. + */ +static enumerator_t* create_ike_cfg_enumerator(private_uci_config_t *this, + host_t *me, host_t *other) +{ + ike_enumerator_t *e = malloc_thing(ike_enumerator_t); + + e->public.enumerate = (void*)ike_enumerator_enumerate; + e->public.destroy = (void*)ike_enumerator_destroy; + e->ike_cfg = NULL; + e->inner = this->parser->create_section_enumerator(this->parser, + "local_addr", "remote_addr", "ike_proposal", NULL); + if (!e->inner) + { + free(e); + return NULL; + } + return &e->public; +} + +/** + * implements backend_t.get_peer_cfg_by_name. + */ +static peer_cfg_t *get_peer_cfg_by_name(private_uci_config_t *this, char *name) +{ + enumerator_t *enumerator; + peer_cfg_t *current, *found = NULL; + + enumerator = create_peer_cfg_enumerator(this, NULL, NULL); + if (enumerator) + { + while (enumerator->enumerate(enumerator, ¤t)) + { + if (streq(name, current->get_name(current))) + { + found = current->get_ref(current); + break; + } + } + enumerator->destroy(enumerator); + } + return found; +} + +/** + * Implementation of uci_config_t.destroy. + */ +static void destroy(private_uci_config_t *this) +{ + free(this); +} + +/** + * Described in header. + */ +uci_config_t *uci_config_create(uci_parser_t *parser) +{ + private_uci_config_t *this = malloc_thing(private_uci_config_t); + + this->public.backend.create_peer_cfg_enumerator = (enumerator_t*(*)(backend_t*, identification_t *me, identification_t *other))create_peer_cfg_enumerator; + this->public.backend.create_ike_cfg_enumerator = (enumerator_t*(*)(backend_t*, host_t *me, host_t *other))create_ike_cfg_enumerator; + this->public.backend.get_peer_cfg_by_name = (peer_cfg_t* (*)(backend_t*,char*))get_peer_cfg_by_name; + this->public.destroy = (void(*)(uci_config_t*))destroy; + this->parser = parser; + + return &this->public; +} + diff --git a/src/libcharon/plugins/uci/uci_config.h b/src/libcharon/plugins/uci/uci_config.h new file mode 100644 index 000000000..130f15d85 --- /dev/null +++ b/src/libcharon/plugins/uci/uci_config.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2008 Martin Willi + * Copyright (C) 2008 Thomas Kallenberg + * 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 uci_config_t uci_config + * @{ @ingroup uci + */ + +#ifndef UCI_CONFIG_H_ +#define UCI_CONFIG_H_ + +#include "uci_parser.h" + +#include <config/backend.h> + +typedef struct uci_config_t uci_config_t; + +/** + * OpenWRT UCI configuration backend. + */ +struct uci_config_t { + + /** + * Implements backend_t interface + */ + backend_t backend; + + /** + * Destroy the backend. + */ + void (*destroy)(uci_config_t *this); +}; + +/** + * Create a UCI based configuration backend. + * + * @param parser UCI parser to use + * @return configuration backend + */ +uci_config_t *uci_config_create(uci_parser_t *parser); + +#endif /** UCI_CONFIG_H_ @}*/ diff --git a/src/libcharon/plugins/uci/uci_control.c b/src/libcharon/plugins/uci/uci_control.c new file mode 100644 index 000000000..3c4928be4 --- /dev/null +++ b/src/libcharon/plugins/uci/uci_control.c @@ -0,0 +1,301 @@ +/* + * Copyright (C) 2008 Thomas Kallenberg + * Copyright (C) 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. + */ + +#define _GNU_SOURCE +#include <string.h> +#include <stdio.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> + +#include "uci_control.h" + +#include <daemon.h> +#include <threading/thread.h> +#include <processing/jobs/callback_job.h> + +#define FIFO_FILE "/var/run/charon.fifo" + + +typedef struct private_uci_control_t private_uci_control_t; + +/** + * private data of uci_control_t + */ +struct private_uci_control_t { + + /** + * Public part + */ + uci_control_t public; + + /** + * Job + */ + callback_job_t *job; +}; + +/** + * write answer to fifo + */ +static void write_fifo(private_uci_control_t *this, char *format, ...) +{ + va_list args; + FILE *out; + + out = fopen(FIFO_FILE, "w"); + if (out) + { + va_start(args, format); + vfprintf(out, format, args); + va_end(args); + fclose(out); + } + else + { + DBG1(DBG_CFG, "writing to UCI fifo failed: %s", strerror(errno)); + } +} + +/** + * print IKE_SA status information + */ +static void status(private_uci_control_t *this, char *name) +{ + enumerator_t *configs, *sas; + iterator_t *children; + ike_sa_t *ike_sa; + child_sa_t *child_sa; + peer_cfg_t *peer_cfg; + char buf[2048]; + FILE *out = NULL; + + configs = charon->backends->create_peer_cfg_enumerator(charon->backends, + NULL, NULL, NULL, NULL); + while (configs->enumerate(configs, &peer_cfg)) + { + if (name && !streq(name, peer_cfg->get_name(peer_cfg))) + { + continue; + } + sas = charon->controller->create_ike_sa_enumerator(charon->controller); + while (sas->enumerate(sas, &ike_sa)) + { + if (!streq(ike_sa->get_name(ike_sa), peer_cfg->get_name(peer_cfg))) + { + continue; + } + if (!out) + { + out = fmemopen(buf, sizeof(buf), "w"); + if (!out) + { + continue; + } + } + fprintf(out, "%-8s %-20D %-16H ", ike_sa->get_name(ike_sa), + ike_sa->get_other_id(ike_sa), ike_sa->get_other_host(ike_sa)); + + children = ike_sa->create_child_sa_iterator(ike_sa); + while (children->iterate(children, (void**)&child_sa)) + { + fprintf(out, "%#R", + child_sa->get_traffic_selectors(child_sa, FALSE)); + } + children->destroy(children); + fprintf(out, "\n"); + } + sas->destroy(sas); + } + configs->destroy(configs); + if (out) + { + fclose(out); + write_fifo(this, "%s", buf); + } + else + { + write_fifo(this, ""); + } +} + +/** + * Initiate an IKE_SA + */ +static void initiate(private_uci_control_t *this, char *name) +{ + peer_cfg_t *peer_cfg; + child_cfg_t *child_cfg; + enumerator_t *enumerator; + + peer_cfg = charon->backends->get_peer_cfg_by_name(charon->backends, name); + if (peer_cfg) + { + enumerator = peer_cfg->create_child_cfg_enumerator(peer_cfg); + if (enumerator->enumerate(enumerator, &child_cfg) && + charon->controller->initiate(charon->controller, peer_cfg, + child_cfg->get_ref(child_cfg), + controller_cb_empty, NULL) == SUCCESS) + { + write_fifo(this, "connection '%s' established\n", name); + } + else + { + write_fifo(this, "establishing connection '%s' failed\n", name); + } + enumerator->destroy(enumerator); + } + else + { + write_fifo(this, "no connection named '%s' found\n", name); + } +} + +/** + * terminate an IKE_SA + */ +static void terminate(private_uci_control_t *this, char *name) +{ + enumerator_t *enumerator; + ike_sa_t *ike_sa; + u_int id; + + enumerator = charon->controller->create_ike_sa_enumerator(charon->controller); + while (enumerator->enumerate(enumerator, &ike_sa)) + { + if (streq(name, ike_sa->get_name(ike_sa))) + { + id = ike_sa->get_unique_id(ike_sa); + enumerator->destroy(enumerator); + charon->controller->terminate_ike(charon->controller, id, + controller_cb_empty, NULL); + write_fifo(this, "connection '%s' terminated\n", name); + return; + } + } + enumerator->destroy(enumerator); + write_fifo(this, "no active connection named '%s'\n", name); +} + +/** + * dispatch control request + */ +static void process(private_uci_control_t *this, char *message) +{ + enumerator_t* enumerator; + + enumerator = enumerator_create_token(message, " \n", ""); + if (enumerator->enumerate(enumerator, &message)) + { + if (streq(message, "status")) + { + if (enumerator->enumerate(enumerator, &message)) + { + status(this, message); + } + else + { + status(this, NULL); + } + } + else if (streq(message, "up") && + enumerator->enumerate(enumerator, &message)) + { + initiate(this, message); + } + else if (streq(message, "down") && + enumerator->enumerate(enumerator, &message)) + { + terminate(this, message); + } + else + { + write_fifo(this, "usage: status [<name>] | up <name> | down <name>\n" + " status format: name peer-id peer-addr tunnel(s)\n"); + } + } + enumerator->destroy(enumerator); +} + +/** + * read from fifo + */ +static job_requeue_t receive(private_uci_control_t *this) +{ + char message[128]; + int len; + bool oldstate; + FILE *in; + + memset(message, 0, sizeof(message)); + oldstate = thread_cancelability(TRUE); + in = fopen(FIFO_FILE, "r"); + thread_cancelability(oldstate); + if (in) + { + len = fread(message, 1, sizeof(message) - 1, in); + fclose(in); + if (len > 0) + { + process(this, message); + } + else + { + DBG1(DBG_DMN, "reading from UCI fifo failed: %s", strerror(errno)); + } + } + else + { + DBG1(DBG_DMN, "opening UCI fifo failed: %s", strerror(errno)); + } + return JOB_REQUEUE_FAIR; +} + +/** + * Implementation of uci_control_t.destroy + */ +static void destroy(private_uci_control_t *this) +{ + this->job->cancel(this->job); + unlink(FIFO_FILE); + free(this); +} + +/** + * Described in header. + */ +uci_control_t *uci_control_create() +{ + private_uci_control_t *this = malloc_thing(private_uci_control_t); + + this->public.destroy = (void(*)(uci_control_t*))destroy; + + unlink(FIFO_FILE); + if (mkfifo(FIFO_FILE, S_IRUSR|S_IWUSR) != 0) + { + DBG1(DBG_CFG, "creating UCI control fifo '%s' failed: %s", + FIFO_FILE, strerror(errno)); + } + else + { + this->job = callback_job_create((callback_job_cb_t)receive, + this, NULL, NULL); + charon->processor->queue_job(charon->processor, (job_t*)this->job); + } + return &this->public; +} + diff --git a/src/libcharon/plugins/uci/uci_control.h b/src/libcharon/plugins/uci/uci_control.h new file mode 100644 index 000000000..794220aa1 --- /dev/null +++ b/src/libcharon/plugins/uci/uci_control.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2008 Thomas Kallenberg + * 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 uci_control_t uci_control + * @{ @ingroup uci + */ + +#ifndef UCI_CONTROL_H_ +#define UCI_CONTROL_H_ + +typedef struct uci_control_t uci_control_t; + +/** + * UCI control interface, uses a simple FIFO file + */ +struct uci_control_t { + + /** + * Destroy the controller + */ + void (*destroy)(uci_control_t *this); +}; + +/** + * Create a UCI based configuration backend. + */ +uci_control_t *uci_control_create(); + +#endif /** UCI_CONTROL_H_ @}*/ diff --git a/src/libcharon/plugins/uci/uci_creds.c b/src/libcharon/plugins/uci/uci_creds.c new file mode 100644 index 000000000..4d664feb2 --- /dev/null +++ b/src/libcharon/plugins/uci/uci_creds.c @@ -0,0 +1,174 @@ +/* + * Copyright (C) 2008 Thomas Kallenberg + * Copyright (C) 2008 Martin Willi + * Copyright (C) 2008 Tobias Brunner + * 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 "uci_creds.h" + +#include <daemon.h> +#include <credentials/keys/shared_key.h> +#include <utils/identification.h> + +typedef struct private_uci_creds_t private_uci_creds_t; + +/** + * Private data of an uci_creds_t object + */ +struct private_uci_creds_t { + /** + * Public part + */ + uci_creds_t public; + + /** + * UCI parser context + */ + uci_parser_t *parser; +}; + +typedef struct { + /** implements enumerator */ + enumerator_t public; + /** inneer UCI enumerator */ + enumerator_t *inner; + /** currently enumerated shared shared */ + shared_key_t *current; + /** local ID to match */ + identification_t *me; + /** remote ID to match */ + identification_t *other; +} shared_enumerator_t; + +/** + * Implementation of shared_enumerator_t.public.enumerate + */ +static bool shared_enumerator_enumerate(shared_enumerator_t *this, + shared_key_t **key, id_match_t *me, id_match_t *other) +{ + char *local_id, *remote_id, *psk; + identification_t *local, *remote; + + while (TRUE) + { + /* defaults */ + local_id = "%any"; + remote_id = "%any"; + psk = NULL; + + if (!this->inner->enumerate(this->inner, NULL, + &local_id, &remote_id, &psk)) + { + return FALSE; + } + if (psk == NULL) + { + continue; + } + if (me) + { + local = identification_create_from_string(local_id); + *me = this->me ? this->me->matches(this->me, local) + : ID_MATCH_ANY; + local->destroy(local); + if (!*me) + { + continue; + } + } + if (other) + { + remote = identification_create_from_string(remote_id); + *other = this->other ? this->other->matches(this->other, remote) + : ID_MATCH_ANY; + remote->destroy(remote); + if (!*other) + { + continue; + } + } + break; + } + DESTROY_IF(this->current); + this->current = shared_key_create(SHARED_IKE, + chunk_clone(chunk_create(psk, strlen(psk)))); + *key = this->current; + return TRUE; +} + +/** + * Implementation of shared_enumerator_t.public.destroy + */ +static void shared_enumerator_destroy(shared_enumerator_t *this) +{ + this->inner->destroy(this->inner); + DESTROY_IF(this->current); + free(this); +} + +/** + * Implementation of backend_t.create_shared_cfg_enumerator. + */ +static enumerator_t* create_shared_enumerator(private_uci_creds_t *this, + shared_key_type_t type, + identification_t *me, + identification_t *other) +{ + shared_enumerator_t *e; + + if (type != SHARED_IKE) + { + return NULL; + } + + e = malloc_thing(shared_enumerator_t); + e->current = NULL; + e->public.enumerate = (void*)shared_enumerator_enumerate; + e->public.destroy = (void*)shared_enumerator_destroy; + e->me = me; + e->other = other; + e->inner = this->parser->create_section_enumerator(this->parser, + "local_id", "remote_id", "psk", NULL); + if (!e->inner) + { + free(e); + return NULL; + } + return &e->public; +} + +/** + * Implementation of uci_creds_t.destroy + */ +static void destroy(private_uci_creds_t *this) +{ + free(this); +} + +uci_creds_t *uci_creds_create(uci_parser_t *parser) +{ + private_uci_creds_t *this = malloc_thing(private_uci_creds_t); + + this->public.credential_set.create_shared_enumerator = (enumerator_t*(*)(credential_set_t*, shared_key_type_t, identification_t*, identification_t*))create_shared_enumerator; + this->public.credential_set.create_private_enumerator = (enumerator_t*(*) (credential_set_t*, key_type_t, identification_t*))return_null; + this->public.credential_set.create_cert_enumerator = (enumerator_t*(*) (credential_set_t*, certificate_type_t, key_type_t,identification_t *, bool))return_null; + this->public.credential_set.create_cdp_enumerator = (enumerator_t*(*) (credential_set_t *,certificate_type_t, identification_t *))return_null; + this->public.credential_set.cache_cert = (void (*)(credential_set_t *, certificate_t *))nop; + this->public.destroy = (void(*) (uci_creds_t*))destroy; + + this->parser = parser; + + return &this->public; +} + diff --git a/src/libcharon/plugins/uci/uci_creds.h b/src/libcharon/plugins/uci/uci_creds.h new file mode 100644 index 000000000..a283ed9f5 --- /dev/null +++ b/src/libcharon/plugins/uci/uci_creds.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2008 Martin Willi + * Copyright (C) 2008 Thomas Kallenberg + * 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 uci_creds_t uci_creds + * @{ @ingroup uci + */ + +#ifndef UCI_CREDS_H_ +#define UCI_CREDS_H_ + +#include "uci_parser.h" + +#include <credentials/credential_set.h> + +typedef struct uci_creds_t uci_creds_t; + +/** + * OpenWRT UCI credential set implementation. + */ +struct uci_creds_t { + + /** + * Implements credential set interface. + */ + credential_set_t credential_set; + + /** + * Destroy the backend. + */ + void (*destroy)(uci_creds_t *this); +}; + +/** + * Create a UCI based credential set. + * + * @param parser UCI parser to use + * @return credential set + */ +uci_creds_t *uci_creds_create(uci_parser_t *parser); + +#endif /** UCI_CREDS_H_ @}*/ diff --git a/src/libcharon/plugins/uci/uci_parser.c b/src/libcharon/plugins/uci/uci_parser.c new file mode 100644 index 000000000..6de55d218 --- /dev/null +++ b/src/libcharon/plugins/uci/uci_parser.c @@ -0,0 +1,186 @@ +/* + * Copyright (C) 2008 Martin Willi + * Copyright (C) 2008 Thomas Kallenberg + * 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 "uci_parser.h" + +#include <stdarg.h> + +#include <library.h> +#include <uci.h> + +typedef struct private_uci_parser_t private_uci_parser_t; + +/** + * Private data of an uci_parser_t object + */ +struct private_uci_parser_t { + + /** + * Public part + */ + uci_parser_t public; + + /** + * UCI package name this parser reads + */ + char *package; +}; + +/** + * enumerator implementation create_section_enumerator + */ +typedef struct { + /** implements enumerator */ + enumerator_t public; + /** currently enumerated uci section */ + struct uci_element *current; + /** all uci ipsec config sections */ + struct uci_list *list; + /** uci conntext */ + struct uci_context *ctx; + /** ipsec uci package */ + struct uci_package *package; + /** NULL terminated list of keywords */ + char *keywords[]; +} section_enumerator_t; + +/** + * Implementation of section_enumerator_t.enumerate + */ +static bool section_enumerator_enumerate(section_enumerator_t *this, ...) +{ + struct uci_element *element; + char **value; + va_list args; + int i; + + if (&this->current->list == this->list) + { + return FALSE; + } + + va_start(args, this); + + value = va_arg(args, char**); + if (value) + { + if (uci_lookup(this->ctx, &element, this->package, + this->current->name, "name") == UCI_OK) + { /* use "name" attribute as config name if available ... */ + *value = uci_to_option(element)->value; + } + else + { /* ... or the section name becomes config name */ + *value = uci_to_section(this->current)->type; + } + } + + /* followed by keyword parameters */ + for (i = 0; this->keywords[i]; i++) + { + value = va_arg(args, char**); + if (value && uci_lookup(this->ctx, &element, this->package, + this->current->name, this->keywords[i]) == UCI_OK) + { + *value = uci_to_option(element)->value; + } + } + va_end(args); + + this->current = list_to_element(this->current->list.next); + return TRUE; +} + +/** + * Implementation of section_enumerator_t.public.destroy + */ +static void section_enumerator_destroy(section_enumerator_t *this) +{ + uci_free_context(this->ctx); + free(this); +} + +/** + * Implementation of backend_t.create_section_enumerator. + */ +static enumerator_t* create_section_enumerator(private_uci_parser_t *this, ...) +{ + section_enumerator_t *e; + va_list args; + int i; + + /* allocate enumerator large enought to hold keyword pointers */ + i = 1; + va_start(args, this); + while (va_arg(args, char*)) + { + i++; + } + va_end(args); + e = malloc(sizeof(section_enumerator_t) + sizeof(char*) * i); + i = 0; + va_start(args, this); + do + { + e->keywords[i] = va_arg(args, char*); + } + while (e->keywords[i++]); + va_end(args); + + e->public.enumerate = (void*)section_enumerator_enumerate; + e->public.destroy = (void*)section_enumerator_destroy; + + /* load uci context */ + e->ctx = uci_alloc_context(); + if (uci_load(e->ctx, this->package, &e->package) != UCI_OK) + { + section_enumerator_destroy(e); + return NULL; + } + e->list = &e->package->sections; + e->current = list_to_element(e->list->next); + if (e->current->type != UCI_TYPE_SECTION) + { + section_enumerator_destroy(e); + return NULL; + } + return &e->public; +} + +/** + * Implementation of uci_parser_t.destroy. + */ +static void destroy(private_uci_parser_t *this) +{ + free(this->package); + free(this); +} + +/** + * Described in header. + */ +uci_parser_t *uci_parser_create(char *package) +{ + private_uci_parser_t *this = malloc_thing(private_uci_parser_t); + + this->public.create_section_enumerator = (enumerator_t*(*)(uci_parser_t*, ...))create_section_enumerator; + this->public.destroy = (void(*)(uci_parser_t*))destroy; + + this->package = strdup(package); + + return &this->public; +} + diff --git a/src/libcharon/plugins/uci/uci_parser.h b/src/libcharon/plugins/uci/uci_parser.h new file mode 100644 index 000000000..7217e507a --- /dev/null +++ b/src/libcharon/plugins/uci/uci_parser.h @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2008 Martin Willi + * Copyright (C) 2008 Thomas Kallenberg + * 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 uci_parser_t uci_parser + * @{ @ingroup uci + */ + +#ifndef UCI_PARSER_H_ +#define UCI_PARSER_H_ + +#include <utils/enumerator.h> + +typedef struct uci_parser_t uci_parser_t; + +/** + * Wrapper to parse UCI sections with an enumerator. + */ +struct uci_parser_t { + + /** + * Create an enumerator over a section. + * + * The enumerator returns a section name followed by values for the keywords + * specified in the variable argument list of this function. + * + * @param ... variable argument list with keywords, NULL terminated + * @return enumerator over sections + */ + enumerator_t* (*create_section_enumerator)(uci_parser_t *this, ...); + + /** + * Destroy the parser. + */ + void (*destroy)(uci_parser_t *this); +}; + +/** + * Create a UCI parser. + * + * @param package UCI package this parser should read + * @return parser context + */ +uci_parser_t *uci_parser_create(char *package); + +#endif /** UCI_PARSER_H_ @}*/ diff --git a/src/libcharon/plugins/uci/uci_plugin.c b/src/libcharon/plugins/uci/uci_plugin.c new file mode 100644 index 000000000..742fcf4d0 --- /dev/null +++ b/src/libcharon/plugins/uci/uci_plugin.c @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2008 Thomas Kallenberg + * 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 "uci_plugin.h" +#include "uci_config.h" +#include "uci_creds.h" +#include "uci_control.h" + +#include <daemon.h> + +/** + * UCI package name to use for lookups + */ +#define UCI_PACKAGE "strongswan" + +typedef struct private_uci_plugin_t private_uci_plugin_t; + +/** + * private data of uci plugin + */ +struct private_uci_plugin_t { + + /** + * implements plugin interface + */ + uci_plugin_t public; + + /** + * UCI configuration backend + */ + uci_config_t *config; + + /** + * UCI credential set implementation + */ + uci_creds_t *creds; + + /** + * UCI parser wrapper + */ + uci_parser_t *parser; + + /** + * UCI control interface + */ + uci_control_t *control; +}; + +/** + * Implementation of plugin_t.destroy + */ +static void destroy(private_uci_plugin_t *this) +{ + charon->backends->remove_backend(charon->backends, &this->config->backend); + charon->credentials->remove_set(charon->credentials, &this->creds->credential_set); + this->config->destroy(this->config); + this->creds->destroy(this->creds); + this->parser->destroy(this->parser); + this->control->destroy(this->control); + free(this); +} + +/* + * see header file + */ +plugin_t *uci_plugin_create() +{ + private_uci_plugin_t *this = malloc_thing(private_uci_plugin_t); + + this->public.plugin.destroy = (void(*)(plugin_t*))destroy; + + this->parser = uci_parser_create(UCI_PACKAGE); + this->config = uci_config_create(this->parser); + this->creds = uci_creds_create(this->parser); + this->control = uci_control_create(); + charon->backends->add_backend(charon->backends, &this->config->backend); + charon->credentials->add_set(charon->credentials, &this->creds->credential_set); + + return &this->public.plugin; +} + diff --git a/src/libcharon/plugins/uci/uci_plugin.h b/src/libcharon/plugins/uci/uci_plugin.h new file mode 100644 index 000000000..980ab26fd --- /dev/null +++ b/src/libcharon/plugins/uci/uci_plugin.h @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2008 Thomas Kallenberg + * Copyright (C) 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 uci uci + * @ingroup cplugins + * + * @defgroup uci_plugin uci_plugin + * @{ @ingroup uci + */ + +#ifndef UCI_PLUGIN_H_ +#define UCI_PLUGIN_H_ + +#include <plugins/plugin.h> + +typedef struct uci_plugin_t uci_plugin_t; + +/** + * OpenWRT UCI (Unified Configuration Interface) configuration plugin. + */ +struct uci_plugin_t { + + /** + * implements plugin interface + */ + plugin_t plugin; +}; + +#endif /** UCI_PLUGIN_H_ @}*/ |