diff options
Diffstat (limited to 'src/charon/kernel')
| -rw-r--r-- | src/charon/kernel/kernel_interface.c | 430 | ||||
| -rw-r--r-- | src/charon/kernel/kernel_interface.h | 389 | ||||
| -rw-r--r-- | src/charon/kernel/kernel_ipsec.c | 29 | ||||
| -rw-r--r-- | src/charon/kernel/kernel_ipsec.h | 273 | ||||
| -rw-r--r-- | src/charon/kernel/kernel_net.h | 143 |
5 files changed, 0 insertions, 1264 deletions
diff --git a/src/charon/kernel/kernel_interface.c b/src/charon/kernel/kernel_interface.c deleted file mode 100644 index 99bf94e9b..000000000 --- a/src/charon/kernel/kernel_interface.c +++ /dev/null @@ -1,430 +0,0 @@ -/* - * Copyright (C) 2008-2009 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 "kernel_interface.h" - -#include <daemon.h> - -typedef struct private_kernel_interface_t private_kernel_interface_t; - -/** - * Private data of a kernel_interface_t object. - */ -struct private_kernel_interface_t { - - /** - * Public part of kernel_interface_t object. - */ - kernel_interface_t public; - - /** - * ipsec interface - */ - kernel_ipsec_t *ipsec; - - /** - * network interface - */ - kernel_net_t *net; -}; - -/** - * Implementation of kernel_interface_t.get_spi - */ -static status_t get_spi(private_kernel_interface_t *this, host_t *src, host_t *dst, - protocol_id_t protocol, u_int32_t reqid, u_int32_t *spi) -{ - if (!this->ipsec) - { - return NOT_SUPPORTED; - } - return this->ipsec->get_spi(this->ipsec, src, dst, protocol, reqid, spi); -} - -/** - * Implementation of kernel_interface_t.get_cpi - */ -static status_t get_cpi(private_kernel_interface_t *this, host_t *src, host_t *dst, - u_int32_t reqid, u_int16_t *cpi) -{ - if (!this->ipsec) - { - return NOT_SUPPORTED; - } - return this->ipsec->get_cpi(this->ipsec, src, dst, reqid, cpi); -} - -/** - * Implementation of kernel_interface_t.add_sa - */ -static status_t add_sa(private_kernel_interface_t *this, host_t *src, host_t *dst, - u_int32_t spi, protocol_id_t protocol, u_int32_t reqid, - lifetime_cfg_t *lifetime, - u_int16_t enc_alg, chunk_t enc_key, - u_int16_t int_alg, chunk_t int_key, - ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi, bool encap, - bool inbound, traffic_selector_t *src_ts, - traffic_selector_t *dst_ts) -{ - if (!this->ipsec) - { - return NOT_SUPPORTED; - } - return this->ipsec->add_sa(this->ipsec, src, dst, spi, protocol, reqid, - lifetime, enc_alg, enc_key, int_alg, int_key, mode, ipcomp, cpi, - encap, inbound, src_ts, dst_ts); -} - -/** - * Implementation of kernel_interface_t.update_sa - */ -static status_t update_sa(private_kernel_interface_t *this, u_int32_t spi, - protocol_id_t protocol, u_int16_t cpi, host_t *src, host_t *dst, - host_t *new_src, host_t *new_dst, bool encap, bool new_encap) -{ - if (!this->ipsec) - { - return NOT_SUPPORTED; - } - return this->ipsec->update_sa(this->ipsec, spi, protocol, cpi, src, dst, - new_src, new_dst, encap, new_encap); -} - -/** - * Implementation of kernel_interface_t.query_sa - */ -static status_t query_sa(private_kernel_interface_t *this, host_t *src, host_t *dst, - u_int32_t spi, protocol_id_t protocol, u_int64_t *bytes) -{ - if (!this->ipsec) - { - return NOT_SUPPORTED; - } - return this->ipsec->query_sa(this->ipsec, src, dst, spi, protocol, bytes); -} - -/** - * Implementation of kernel_interface_t.del_sa - */ -static status_t del_sa(private_kernel_interface_t *this, host_t *src, host_t *dst, - u_int32_t spi, protocol_id_t protocol, u_int16_t cpi) -{ - if (!this->ipsec) - { - return NOT_SUPPORTED; - } - return this->ipsec->del_sa(this->ipsec, src, dst, spi, protocol, cpi); -} - -/** - * Implementation of kernel_interface_t.add_policy - */ -static status_t add_policy(private_kernel_interface_t *this, host_t *src, host_t *dst, - traffic_selector_t *src_ts, traffic_selector_t *dst_ts, - policy_dir_t direction, u_int32_t spi, protocol_id_t protocol, - u_int32_t reqid, ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi, - bool routed) -{ - if (!this->ipsec) - { - return NOT_SUPPORTED; - } - return this->ipsec->add_policy(this->ipsec, src, dst, src_ts, dst_ts, - direction, spi, protocol, reqid, mode, ipcomp, cpi, routed); -} - -/** - * Implementation of kernel_interface_t.query_policy - */ -static status_t query_policy(private_kernel_interface_t *this, - traffic_selector_t *src_ts, traffic_selector_t *dst_ts, - policy_dir_t direction, u_int32_t *use_time) -{ - if (!this->ipsec) - { - return NOT_SUPPORTED; - } - return this->ipsec->query_policy(this->ipsec, src_ts, dst_ts, direction, use_time); -} - -/** - * Implementation of kernel_interface_t.del_policy - */ -static status_t del_policy(private_kernel_interface_t *this, - traffic_selector_t *src_ts, traffic_selector_t *dst_ts, - policy_dir_t direction, bool unrouted) -{ - if (!this->ipsec) - { - return NOT_SUPPORTED; - } - return this->ipsec->del_policy(this->ipsec, src_ts, dst_ts, direction, unrouted); -} - -/** - * Implementation of kernel_interface_t.get_source_addr - */ -static host_t *get_source_addr(private_kernel_interface_t *this, - host_t *dest, host_t *src) -{ - if (!this->net) - { - return NULL; - } - return this->net->get_source_addr(this->net, dest, src); -} - -/** - * Implementation of kernel_interface_t.get_nexthop - */ -static host_t *get_nexthop(private_kernel_interface_t *this, host_t *dest) -{ - if (!this->net) - { - return NULL; - } - return this->net->get_nexthop(this->net, dest); -} - -/** - * Implementation of kernel_interface_t.get_interface - */ -static char* get_interface(private_kernel_interface_t *this, host_t *host) -{ - if (!this->net) - { - return NULL; - } - return this->net->get_interface(this->net, host); -} - -/** - * Implementation of kernel_interface_t.create_address_enumerator - */ -static enumerator_t *create_address_enumerator(private_kernel_interface_t *this, - bool include_down_ifaces, bool include_virtual_ips) -{ - if (!this->net) - { - return enumerator_create_empty(); - } - return this->net->create_address_enumerator(this->net, include_down_ifaces, - include_virtual_ips); -} - -/** - * Implementation of kernel_interface_t.add_ip - */ -static status_t add_ip(private_kernel_interface_t *this, host_t *virtual_ip, - host_t *iface_ip) -{ - if (!this->net) - { - return NOT_SUPPORTED; - } - return this->net->add_ip(this->net, virtual_ip, iface_ip); -} - -/** - * Implementation of kernel_interface_t.del_ip - */ -static status_t del_ip(private_kernel_interface_t *this, host_t *virtual_ip) -{ - if (!this->net) - { - return NOT_SUPPORTED; - } - return this->net->del_ip(this->net, virtual_ip); -} - -/** - * Implementation of kernel_interface_t.add_route - */ -static status_t add_route(private_kernel_interface_t *this, chunk_t dst_net, - u_int8_t prefixlen, host_t *gateway, host_t *src_ip, char *if_name) -{ - if (!this->net) - { - return NOT_SUPPORTED; - } - return this->net->add_route(this->net, dst_net, prefixlen, gateway, src_ip, - if_name); -} - -/** - * Implementation of kernel_interface_t.del_route - */ -static status_t del_route(private_kernel_interface_t *this, chunk_t dst_net, - u_int8_t prefixlen, host_t *gateway, host_t *src_ip, char *if_name) -{ - if (!this->net) - { - return NOT_SUPPORTED; - } - return this->net->del_route(this->net, dst_net, prefixlen, gateway, src_ip, - if_name); -} - - -/** - * Implementation of kernel_interface_t.get_address_by_ts - */ -static status_t get_address_by_ts(private_kernel_interface_t *this, - traffic_selector_t *ts, host_t **ip) -{ - enumerator_t *addrs; - host_t *host; - int family; - bool found = FALSE; - - DBG2(DBG_KNL, "getting a local address in traffic selector %R", ts); - - /* if we have a family which includes localhost, we do not - * search for an IP, we use the default */ - family = ts->get_type(ts) == TS_IPV4_ADDR_RANGE ? AF_INET : AF_INET6; - - if (family == AF_INET) - { - host = host_create_from_string("127.0.0.1", 0); - } - else - { - host = host_create_from_string("::1", 0); - } - - if (ts->includes(ts, host)) - { - *ip = host_create_any(family); - host->destroy(host); - DBG2(DBG_KNL, "using host %H", *ip); - return SUCCESS; - } - host->destroy(host); - - addrs = create_address_enumerator(this, TRUE, TRUE); - while (addrs->enumerate(addrs, (void**)&host)) - { - if (ts->includes(ts, host)) - { - found = TRUE; - *ip = host->clone(host); - break; - } - } - addrs->destroy(addrs); - - if (!found) - { - DBG1(DBG_KNL, "no local address found in traffic selector %R", ts); - return FAILED; - } - - DBG2(DBG_KNL, "using host %H", *ip); - return SUCCESS; -} - - -/** - * Implementation of kernel_interface_t.add_ipsec_interface. - */ -static void add_ipsec_interface(private_kernel_interface_t *this, - kernel_ipsec_constructor_t constructor) -{ - if (!this->ipsec) - { - this->ipsec = constructor(); - } -} - -/** - * Implementation of kernel_interface_t.remove_ipsec_interface. - */ -static void remove_ipsec_interface(private_kernel_interface_t *this, - kernel_ipsec_constructor_t constructor) -{ - /* TODO: replace if interface currently in use */ -} - -/** - * Implementation of kernel_interface_t.add_net_interface. - */ -static void add_net_interface(private_kernel_interface_t *this, - kernel_net_constructor_t constructor) -{ - if (!this->net) - { - this->net = constructor(); - } -} - -/** - * Implementation of kernel_interface_t.remove_net_interface. - */ -static void remove_net_interface(private_kernel_interface_t *this, - kernel_net_constructor_t constructor) -{ - /* TODO: replace if interface currently in use */ -} - -/** - * Implementation of kernel_interface_t.destroy. - */ -static void destroy(private_kernel_interface_t *this) -{ - DESTROY_IF(this->ipsec); - DESTROY_IF(this->net); - free(this); -} - -/* - * Described in header-file - */ -kernel_interface_t *kernel_interface_create() -{ - private_kernel_interface_t *this = malloc_thing(private_kernel_interface_t); - - this->public.get_spi = (status_t(*)(kernel_interface_t*,host_t*,host_t*,protocol_id_t,u_int32_t,u_int32_t*))get_spi; - this->public.get_cpi = (status_t(*)(kernel_interface_t*,host_t*,host_t*,u_int32_t,u_int16_t*))get_cpi; - this->public.add_sa = (status_t(*)(kernel_interface_t *,host_t*,host_t*,u_int32_t,protocol_id_t,u_int32_t,lifetime_cfg_t*,u_int16_t,chunk_t,u_int16_t,chunk_t,ipsec_mode_t,u_int16_t,u_int16_t,bool,bool,traffic_selector_t*,traffic_selector_t*))add_sa; - this->public.update_sa = (status_t(*)(kernel_interface_t*,u_int32_t,protocol_id_t,u_int16_t,host_t*,host_t*,host_t*,host_t*,bool,bool))update_sa; - this->public.query_sa = (status_t(*)(kernel_interface_t*,host_t*,host_t*,u_int32_t,protocol_id_t,u_int64_t*))query_sa; - this->public.del_sa = (status_t(*)(kernel_interface_t*,host_t*,host_t*,u_int32_t,protocol_id_t,u_int16_t))del_sa; - this->public.add_policy = (status_t(*)(kernel_interface_t*,host_t*,host_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,u_int32_t,protocol_id_t,u_int32_t,ipsec_mode_t,u_int16_t,u_int16_t,bool))add_policy; - this->public.query_policy = (status_t(*)(kernel_interface_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,u_int32_t*))query_policy; - this->public.del_policy = (status_t(*)(kernel_interface_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,bool))del_policy; - - this->public.get_source_addr = (host_t*(*)(kernel_interface_t*, host_t *dest, host_t *src))get_source_addr; - this->public.get_nexthop = (host_t*(*)(kernel_interface_t*, host_t *dest))get_nexthop; - this->public.get_interface = (char*(*)(kernel_interface_t*,host_t*))get_interface; - this->public.create_address_enumerator = (enumerator_t*(*)(kernel_interface_t*,bool,bool))create_address_enumerator; - this->public.add_ip = (status_t(*)(kernel_interface_t*,host_t*,host_t*)) add_ip; - this->public.del_ip = (status_t(*)(kernel_interface_t*,host_t*)) del_ip; - this->public.add_route = (status_t(*)(kernel_interface_t*,chunk_t,u_int8_t,host_t*,host_t*,char*)) add_route; - this->public.del_route = (status_t(*)(kernel_interface_t*,chunk_t,u_int8_t,host_t*,host_t*,char*)) del_route; - - this->public.get_address_by_ts = (status_t(*)(kernel_interface_t*,traffic_selector_t*,host_t**))get_address_by_ts; - - this->public.add_ipsec_interface = (void(*)(kernel_interface_t*, kernel_ipsec_constructor_t))add_ipsec_interface; - this->public.remove_ipsec_interface = (void(*)(kernel_interface_t*, kernel_ipsec_constructor_t))remove_ipsec_interface; - this->public.add_net_interface = (void(*)(kernel_interface_t*, kernel_net_constructor_t))add_net_interface; - this->public.remove_net_interface = (void(*)(kernel_interface_t*, kernel_net_constructor_t))remove_net_interface; - - this->public.destroy = (void (*)(kernel_interface_t*))destroy; - - this->ipsec = NULL; - this->net = NULL; - - return &this->public; -} diff --git a/src/charon/kernel/kernel_interface.h b/src/charon/kernel/kernel_interface.h deleted file mode 100644 index c39246e72..000000000 --- a/src/charon/kernel/kernel_interface.h +++ /dev/null @@ -1,389 +0,0 @@ -/* - * Copyright (C) 2006-2009 Tobias Brunner - * Copyright (C) 2006 Daniel Roethlisberger - * Copyright (C) 2005-2006 Martin Willi - * Copyright (C) 2005 Jan Hutter - * 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 kernel_interface kernel_interface - * @{ @ingroup kernel - */ - -#ifndef KERNEL_INTERFACE_H_ -#define KERNEL_INTERFACE_H_ - -typedef struct kernel_interface_t kernel_interface_t; - -#include <utils/host.h> -#include <crypto/prf_plus.h> -#include <encoding/payloads/proposal_substructure.h> - -#include <kernel/kernel_ipsec.h> -#include <kernel/kernel_net.h> - -/** - * Constructor function for ipsec kernel interface - */ -typedef kernel_ipsec_t* (*kernel_ipsec_constructor_t)(void); - -/** - * Constructor function for network kernel interface - */ -typedef kernel_net_t* (*kernel_net_constructor_t)(void); - -/** - * Manager and wrapper for different kernel interfaces. - * - * The kernel interface handles the communication with the kernel - * for SA and policy management and interface and IP address management. - */ -struct kernel_interface_t { - - /** - * Get a SPI from the kernel. - * - * @param src source address of SA - * @param dst destination address of SA - * @param protocol protocol for SA (ESP/AH) - * @param reqid unique ID for this SA - * @param spi allocated spi - * @return SUCCESS if operation completed - */ - status_t (*get_spi)(kernel_interface_t *this, host_t *src, host_t *dst, - protocol_id_t protocol, u_int32_t reqid, u_int32_t *spi); - - /** - * Get a Compression Parameter Index (CPI) from the kernel. - * - * @param src source address of SA - * @param dst destination address of SA - * @param reqid unique ID for the corresponding SA - * @param cpi allocated cpi - * @return SUCCESS if operation completed - */ - status_t (*get_cpi)(kernel_interface_t *this, host_t *src, host_t *dst, - u_int32_t reqid, u_int16_t *cpi); - - /** - * Add an SA to the SAD. - * - * add_sa() may update an already allocated - * SPI (via get_spi). In this case, the replace - * flag must be set. - * This function does install a single SA for a - * single protocol in one direction. - * - * @param src source address for this SA - * @param dst destination address for this SA - * @param spi SPI allocated by us or remote peer - * @param protocol protocol for this SA (ESP/AH) - * @param reqid unique ID for this SA - * @param lifetime lifetime_cfg_t for this SA - * @param enc_alg Algorithm to use for encryption (ESP only) - * @param enc_key key to use for encryption - * @param int_alg Algorithm to use for integrity protection - * @param int_key key to use for integrity protection - * @param mode mode of the SA (tunnel, transport) - * @param ipcomp IPComp transform to use - * @param cpi CPI for IPComp - * @param encap enable UDP encapsulation for NAT traversal - * @param inbound TRUE if this is an inbound SA - * @param src_ts traffic selector with BEET source address - * @param dst_ts traffic selector with BEET destination address - * @return SUCCESS if operation completed - */ - status_t (*add_sa) (kernel_interface_t *this, - host_t *src, host_t *dst, u_int32_t spi, - protocol_id_t protocol, u_int32_t reqid, - lifetime_cfg_t *lifetime, - u_int16_t enc_alg, chunk_t enc_key, - u_int16_t int_alg, chunk_t int_key, - ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi, - bool encap, bool inbound, - traffic_selector_t *src_ts, traffic_selector_t *dst_ts); - - /** - * Update the hosts on an installed SA. - * - * We cannot directly update the destination address as the kernel - * requires the spi, the protocol AND the destination address (and family) - * to identify SAs. Therefore if the destination address changed we - * create a new SA and delete the old one. - * - * @param spi SPI of the SA - * @param protocol protocol for this SA (ESP/AH) - * @param cpi CPI for IPComp, 0 if no IPComp is used - * @param src current source address - * @param dst current destination address - * @param new_src new source address - * @param new_dst new destination address - * @param encap current use of UDP encapsulation - * @param new_encap new use of UDP encapsulation - * @return SUCCESS if operation completed, NOT_SUPPORTED if - * the kernel interface can't update the SA - */ - status_t (*update_sa)(kernel_interface_t *this, - u_int32_t spi, protocol_id_t protocol, u_int16_t cpi, - host_t *src, host_t *dst, - host_t *new_src, host_t *new_dst, - bool encap, bool new_encap); - - /** - * Query the number of bytes processed by an SA from the SAD. - * - * @param src source address for this SA - * @param dst destination address for this SA - * @param spi SPI allocated by us or remote peer - * @param protocol protocol for this SA (ESP/AH) - * @param[out] bytes the number of bytes processed by SA - * @return SUCCESS if operation completed - */ - status_t (*query_sa) (kernel_interface_t *this, host_t *src, host_t *dst, - u_int32_t spi, protocol_id_t protocol, u_int64_t *bytes); - - /** - * Delete a previously installed SA from the SAD. - * - * @param src source address for this SA - * @param dst destination address for this SA - * @param spi SPI allocated by us or remote peer - * @param protocol protocol for this SA (ESP/AH) - * @param cpi CPI for IPComp or 0 - * @return SUCCESS if operation completed - */ - status_t (*del_sa) (kernel_interface_t *this, host_t *src, host_t *dst, - u_int32_t spi, protocol_id_t protocol, u_int16_t cpi); - - /** - * Add a policy to the SPD. - * - * A policy is always associated to an SA. Traffic which matches a - * policy is handled by the SA with the same reqid. - * - * @param src source address of SA - * @param dst dest address of SA - * @param src_ts traffic selector to match traffic source - * @param dst_ts traffic selector to match traffic dest - * @param direction direction of traffic, POLICY_IN, POLICY_OUT, POLICY_FWD - * @param spi SPI of SA - * @param protocol protocol to use to protect traffic (AH/ESP) - * @param reqid unique ID of an SA to use to enforce policy - * @param mode mode of SA (tunnel, transport) - * @param ipcomp the IPComp transform used - * @param cpi CPI for IPComp - * @param routed TRUE, if this policy is routed in the kernel - * @return SUCCESS if operation completed - */ - status_t (*add_policy) (kernel_interface_t *this, - host_t *src, host_t *dst, - traffic_selector_t *src_ts, - traffic_selector_t *dst_ts, - policy_dir_t direction, u_int32_t spi, - protocol_id_t protocol, u_int32_t reqid, - ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi, - bool routed); - - /** - * Query the use time of a policy. - * - * The use time of a policy is the time the policy was used - * for the last time. - * - * @param src_ts traffic selector to match traffic source - * @param dst_ts traffic selector to match traffic dest - * @param direction direction of traffic, POLICY_IN, POLICY_OUT, POLICY_FWD - * @param[out] use_time the time of this SA's last use - * @return SUCCESS if operation completed - */ - status_t (*query_policy) (kernel_interface_t *this, - traffic_selector_t *src_ts, - traffic_selector_t *dst_ts, - policy_dir_t direction, u_int32_t *use_time); - - /** - * Remove a policy from the SPD. - * - * The kernel interface implements reference counting for policies. - * If the same policy is installed multiple times (in the case of rekeying), - * the reference counter is increased. del_policy() decreases the ref counter - * and removes the policy only when no more references are available. - * - * @param src_ts traffic selector to match traffic source - * @param dst_ts traffic selector to match traffic dest - * @param direction direction of traffic, POLICY_IN, POLICY_OUT, POLICY_FWD - * @param unrouted TRUE, if this policy is unrouted from the kernel - * @return SUCCESS if operation completed - */ - status_t (*del_policy) (kernel_interface_t *this, - traffic_selector_t *src_ts, - traffic_selector_t *dst_ts, - policy_dir_t direction, - bool unrouted); - - /** - * Get our outgoing source address for a destination. - * - * Does a route lookup to get the source address used to reach dest. - * The returned host is allocated and must be destroyed. - * An optional src address can be used to check if a route is available - * for given source to dest. - * - * @param dest target destination address - * @param src source address to check, or NULL - * @return outgoing source address, NULL if unreachable - */ - host_t* (*get_source_addr)(kernel_interface_t *this, - host_t *dest, host_t *src); - - /** - * Get the next hop for a destination. - * - * Does a route lookup to get the next hop used to reach dest. - * The returned host is allocated and must be destroyed. - * - * @param dest target destination address - * @return next hop address, NULL if unreachable - */ - host_t* (*get_nexthop)(kernel_interface_t *this, host_t *dest); - - /** - * Get the interface name of a local address. - * - * @param host address to get interface name from - * @return allocated interface name, or NULL if not found - */ - char* (*get_interface) (kernel_interface_t *this, host_t *host); - - /** - * Creates an enumerator over all local addresses. - * - * This function blocks an internal cached address list until the - * enumerator gets destroyed. - * The hosts are read-only, do not modify of free. - * - * @param include_down_ifaces TRUE to enumerate addresses from down interfaces - * @param include_virtual_ips TRUE to enumerate virtual ip addresses - * @return enumerator over host_t's - */ - enumerator_t *(*create_address_enumerator) (kernel_interface_t *this, - bool include_down_ifaces, bool include_virtual_ips); - - /** - * Add a virtual IP to an interface. - * - * Virtual IPs are attached to an interface. If an IP is added multiple - * times, the IP is refcounted and not removed until del_ip() was called - * as many times as add_ip(). - * The virtual IP is attached to the interface where the iface_ip is found. - * - * @param virtual_ip virtual ip address to assign - * @param iface_ip IP of an interface to attach virtual IP - * @return SUCCESS if operation completed - */ - status_t (*add_ip) (kernel_interface_t *this, host_t *virtual_ip, - host_t *iface_ip); - - /** - * Remove a virtual IP from an interface. - * - * The kernel interface uses refcounting, see add_ip(). - * - * @param virtual_ip virtual ip address to assign - * @return SUCCESS if operation completed - */ - status_t (*del_ip) (kernel_interface_t *this, host_t *virtual_ip); - - /** - * Add a route. - * - * @param dst_net destination net - * @param prefixlen destination net prefix length - * @param gateway gateway for this route - * @param src_ip sourc ip of the route - * @param if_name name of the interface the route is bound to - * @return SUCCESS if operation completed - * ALREADY_DONE if the route already exists - */ - status_t (*add_route) (kernel_interface_t *this, chunk_t dst_net, u_int8_t prefixlen, - host_t *gateway, host_t *src_ip, char *if_name); - - /** - * Delete a route. - * - * @param dst_net destination net - * @param prefixlen destination net prefix length - * @param gateway gateway for this route - * @param src_ip sourc ip of the route - * @param if_name name of the interface the route is bound to - * @return SUCCESS if operation completed - */ - status_t (*del_route) (kernel_interface_t *this, chunk_t dst_net, u_int8_t prefixlen, - host_t *gateway, host_t *src_ip, char *if_name); - - /** - * manager methods - */ - - /** - * Tries to find an ip address of a local interface that is included in the - * supplied traffic selector. - * - * @param ts traffic selector - * @param ip returned ip (has to be destroyed) - * @return SUCCESS if address found - */ - status_t (*get_address_by_ts) (kernel_interface_t *this, - traffic_selector_t *ts, host_t **ip); - - /** - * Register an ipsec kernel interface constructor on the manager. - * - * @param create constructor to register - */ - void (*add_ipsec_interface)(kernel_interface_t *this, kernel_ipsec_constructor_t create); - - /** - * Unregister an ipsec kernel interface constructor. - * - * @param create constructor to unregister - */ - void (*remove_ipsec_interface)(kernel_interface_t *this, kernel_ipsec_constructor_t create); - - /** - * Register a network kernel interface constructor on the manager. - * - * @param create constructor to register - */ - void (*add_net_interface)(kernel_interface_t *this, kernel_net_constructor_t create); - - /** - * Unregister a network kernel interface constructor. - * - * @param create constructor to unregister - */ - void (*remove_net_interface)(kernel_interface_t *this, kernel_net_constructor_t create); - - /** - * Destroys a kernel_interface_manager_t object. - */ - void (*destroy) (kernel_interface_t *this); -}; - -/** - * Creates an object of type kernel_interface_t. - */ -kernel_interface_t *kernel_interface_create(void); - -#endif /** KERNEL_INTERFACE_H_ @}*/ diff --git a/src/charon/kernel/kernel_ipsec.c b/src/charon/kernel/kernel_ipsec.c deleted file mode 100644 index 5b0335b16..000000000 --- a/src/charon/kernel/kernel_ipsec.c +++ /dev/null @@ -1,29 +0,0 @@ -/* - * 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 "kernel_ipsec.h" - -ENUM(ipsec_mode_names, MODE_TRANSPORT, MODE_BEET, - "TRANSPORT", - "TUNNEL", - "BEET", -); - -ENUM(policy_dir_names, POLICY_IN, POLICY_FWD, - "in", - "out", - "fwd" -); - diff --git a/src/charon/kernel/kernel_ipsec.h b/src/charon/kernel/kernel_ipsec.h deleted file mode 100644 index 73ad29b0e..000000000 --- a/src/charon/kernel/kernel_ipsec.h +++ /dev/null @@ -1,273 +0,0 @@ -/* - * Copyright (C) 2006-2009 Tobias Brunner - * Copyright (C) 2006 Daniel Roethlisberger - * Copyright (C) 2005-2006 Martin Willi - * Copyright (C) 2005 Jan Hutter - * 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 kernel_ipsec kernel_ipsec - * @{ @ingroup kernel - */ - -#ifndef KERNEL_IPSEC_H_ -#define KERNEL_IPSEC_H_ - -typedef enum ipsec_mode_t ipsec_mode_t; -typedef enum policy_dir_t policy_dir_t; -typedef struct kernel_ipsec_t kernel_ipsec_t; - -#include <utils/host.h> -#include <crypto/prf_plus.h> -#include <config/proposal.h> -#include <config/child_cfg.h> - -/** - * Mode of a CHILD_SA. - */ -enum ipsec_mode_t { - /** transport mode, no inner address */ - MODE_TRANSPORT = 1, - /** tunnel mode, inner and outer addresses */ - MODE_TUNNEL, - /** BEET mode, tunnel mode but fixed, bound inner addresses */ - MODE_BEET, -}; - -/** - * enum names for ipsec_mode_t. - */ -extern enum_name_t *ipsec_mode_names; - -/** - * Direction of a policy. These are equal to those - * defined in xfrm.h, but we want to stay implementation - * neutral here. - */ -enum policy_dir_t { - /** Policy for inbound traffic */ - POLICY_IN = 0, - /** Policy for outbound traffic */ - POLICY_OUT = 1, - /** Policy for forwarded traffic */ - POLICY_FWD = 2, -}; - -/** - * enum names for policy_dir_t. - */ -extern enum_name_t *policy_dir_names; - -/** - * Interface to the ipsec subsystem of the kernel. - * - * The kernel ipsec interface handles the communication with the kernel - * for SA and policy management. It allows setup of these, and provides - * further the handling of kernel events. - * Policy information are cached in the interface. This is necessary to do - * reference counting. The Linux kernel does not allow the same policy - * installed twice, but we need this as CHILD_SA exist multiple times - * when rekeying. Thats why we do reference counting of policies. - */ -struct kernel_ipsec_t { - - /** - * Get a SPI from the kernel. - * - * @param src source address of SA - * @param dst destination address of SA - * @param protocol protocol for SA (ESP/AH) - * @param reqid unique ID for this SA - * @param spi allocated spi - * @return SUCCESS if operation completed - */ - status_t (*get_spi)(kernel_ipsec_t *this, host_t *src, host_t *dst, - protocol_id_t protocol, u_int32_t reqid, u_int32_t *spi); - - /** - * Get a Compression Parameter Index (CPI) from the kernel. - * - * @param src source address of SA - * @param dst destination address of SA - * @param reqid unique ID for the corresponding SA - * @param cpi allocated cpi - * @return SUCCESS if operation completed - */ - status_t (*get_cpi)(kernel_ipsec_t *this, host_t *src, host_t *dst, - u_int32_t reqid, u_int16_t *cpi); - - /** - * Add an SA to the SAD. - * - * add_sa() may update an already allocated - * SPI (via get_spi). In this case, the replace - * flag must be set. - * This function does install a single SA for a - * single protocol in one direction. - * - * @param src source address for this SA - * @param dst destination address for this SA - * @param spi SPI allocated by us or remote peer - * @param protocol protocol for this SA (ESP/AH) - * @param reqid unique ID for this SA - * @param lifetime lifetime_cfg_t for this SA - * @param enc_alg Algorithm to use for encryption (ESP only) - * @param enc_key key to use for encryption - * @param int_alg Algorithm to use for integrity protection - * @param int_key key to use for integrity protection - * @param mode mode of the SA (tunnel, transport) - * @param ipcomp IPComp transform to use - * @param cpi CPI for IPComp - * @param encap enable UDP encapsulation for NAT traversal - * @param inbound TRUE if this is an inbound SA - * @param src_ts traffic selector with BEET source address - * @param dst_ts traffic selector with BEET destination address - * @return SUCCESS if operation completed - */ - status_t (*add_sa) (kernel_ipsec_t *this, - host_t *src, host_t *dst, u_int32_t spi, - protocol_id_t protocol, u_int32_t reqid, - lifetime_cfg_t *lifetime, - u_int16_t enc_alg, chunk_t enc_key, - u_int16_t int_alg, chunk_t int_key, - ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi, - bool encap, bool inbound, - traffic_selector_t *src_ts, traffic_selector_t *dst_ts); - - /** - * Update the hosts on an installed SA. - * - * We cannot directly update the destination address as the kernel - * requires the spi, the protocol AND the destination address (and family) - * to identify SAs. Therefore if the destination address changed we - * create a new SA and delete the old one. - * - * @param spi SPI of the SA - * @param protocol protocol for this SA (ESP/AH) - * @param cpi CPI for IPComp, 0 if no IPComp is used - * @param src current source address - * @param dst current destination address - * @param new_src new source address - * @param new_dst new destination address - * @param encap current use of UDP encapsulation - * @param new_encap new use of UDP encapsulation - * @return SUCCESS if operation completed, NOT_SUPPORTED if - * the kernel interface can't update the SA - */ - status_t (*update_sa)(kernel_ipsec_t *this, - u_int32_t spi, protocol_id_t protocol, u_int16_t cpi, - host_t *src, host_t *dst, - host_t *new_src, host_t *new_dst, - bool encap, bool new_encap); - - /** - * Query the number of bytes processed by an SA from the SAD. - * - * @param src source address for this SA - * @param dst destination address for this SA - * @param spi SPI allocated by us or remote peer - * @param protocol protocol for this SA (ESP/AH) - * @param[out] bytes the number of bytes processed by SA - * @return SUCCESS if operation completed - */ - status_t (*query_sa) (kernel_ipsec_t *this, host_t *src, host_t *dst, - u_int32_t spi, protocol_id_t protocol, u_int64_t *bytes); - - /** - * Delete a previusly installed SA from the SAD. - * - * @param src source address for this SA - * @param dst destination address for this SA - * @param spi SPI allocated by us or remote peer - * @param protocol protocol for this SA (ESP/AH) - * @param cpi CPI for IPComp or 0 - * @return SUCCESS if operation completed - */ - status_t (*del_sa) (kernel_ipsec_t *this, host_t *src, host_t *dst, - u_int32_t spi, protocol_id_t protocol, u_int16_t cpi); - - /** - * Add a policy to the SPD. - * - * A policy is always associated to an SA. Traffic which matches a - * policy is handled by the SA with the same reqid. - * - * @param src source address of SA - * @param dst dest address of SA - * @param src_ts traffic selector to match traffic source - * @param dst_ts traffic selector to match traffic dest - * @param direction direction of traffic, POLICY_IN, POLICY_OUT, POLICY_FWD - * @param spi SPI of SA - * @param protocol protocol to use to protect traffic (AH/ESP) - * @param reqid unique ID of an SA to use to enforce policy - * @param mode mode of SA (tunnel, transport) - * @param ipcomp the IPComp transform used - * @param cpi CPI for IPComp - * @param routed TRUE, if this policy is routed in the kernel - * @return SUCCESS if operation completed - */ - status_t (*add_policy) (kernel_ipsec_t *this, - host_t *src, host_t *dst, - traffic_selector_t *src_ts, - traffic_selector_t *dst_ts, - policy_dir_t direction, u_int32_t spi, - protocol_id_t protocol, u_int32_t reqid, - ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi, - bool routed); - - /** - * Query the use time of a policy. - * - * The use time of a policy is the time the policy was used for the last - * time. It is not the system time, but a monotonic timestamp as returned - * by time_monotonic. - * - * @param src_ts traffic selector to match traffic source - * @param dst_ts traffic selector to match traffic dest - * @param direction direction of traffic, POLICY_IN, POLICY_OUT, POLICY_FWD - * @param[out] use_time the monotonic timestamp of this SA's last use - * @return SUCCESS if operation completed - */ - status_t (*query_policy) (kernel_ipsec_t *this, - traffic_selector_t *src_ts, - traffic_selector_t *dst_ts, - policy_dir_t direction, u_int32_t *use_time); - - /** - * Remove a policy from the SPD. - * - * The kernel interface implements reference counting for policies. - * If the same policy is installed multiple times (in the case of rekeying), - * the reference counter is increased. del_policy() decreases the ref counter - * and removes the policy only when no more references are available. - * - * @param src_ts traffic selector to match traffic source - * @param dst_ts traffic selector to match traffic dest - * @param direction direction of traffic, POLICY_IN, POLICY_OUT, POLICY_FWD - * @param unrouted TRUE, if this policy is unrouted from the kernel - * @return SUCCESS if operation completed - */ - status_t (*del_policy) (kernel_ipsec_t *this, - traffic_selector_t *src_ts, - traffic_selector_t *dst_ts, - policy_dir_t direction, - bool unrouted); - - /** - * Destroy the implementation. - */ - void (*destroy) (kernel_ipsec_t *this); -}; - -#endif /** KERNEL_IPSEC_H_ @}*/ diff --git a/src/charon/kernel/kernel_net.h b/src/charon/kernel/kernel_net.h deleted file mode 100644 index efb221f88..000000000 --- a/src/charon/kernel/kernel_net.h +++ /dev/null @@ -1,143 +0,0 @@ -/* - * Copyright (C) 2008 Tobias Brunner - * 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. - */ - -/** - * @defgroup kernel_net kernel_net - * @{ @ingroup kernel - */ - -#ifndef KERNEL_NET_H_ -#define KERNEL_NET_H_ - -typedef struct kernel_net_t kernel_net_t; - -#include <utils/enumerator.h> -#include <utils/host.h> - -/** - * Interface to the network subsystem of the kernel. - * - * The kernel network interface handles the communication with the kernel - * for interface and IP address management. - */ -struct kernel_net_t { - - /** - * Get our outgoing source address for a destination. - * - * Does a route lookup to get the source address used to reach dest. - * The returned host is allocated and must be destroyed. - * An optional src address can be used to check if a route is available - * for given source to dest. - * - * @param dest target destination address - * @param src source address to check, or NULL - * @return outgoing source address, NULL if unreachable - */ - host_t* (*get_source_addr)(kernel_net_t *this, host_t *dest, host_t *src); - - /** - * Get the next hop for a destination. - * - * Does a route lookup to get the next hop used to reach dest. - * The returned host is allocated and must be destroyed. - * - * @param dest target destination address - * @return next hop address, NULL if unreachable - */ - host_t* (*get_nexthop)(kernel_net_t *this, host_t *dest); - - /** - * Get the interface name of a local address. - * - * @param host address to get interface name from - * @return allocated interface name, or NULL if not found - */ - char* (*get_interface) (kernel_net_t *this, host_t *host); - - /** - * Creates an enumerator over all local addresses. - * - * This function blocks an internal cached address list until the - * enumerator gets destroyed. - * The hosts are read-only, do not modify of free. - * - * @param include_down_ifaces TRUE to enumerate addresses from down interfaces - * @param include_virtual_ips TRUE to enumerate virtual ip addresses - * @return enumerator over host_t's - */ - enumerator_t *(*create_address_enumerator) (kernel_net_t *this, - bool include_down_ifaces, bool include_virtual_ips); - - /** - * Add a virtual IP to an interface. - * - * Virtual IPs are attached to an interface. If an IP is added multiple - * times, the IP is refcounted and not removed until del_ip() was called - * as many times as add_ip(). - * The virtual IP is attached to the interface where the iface_ip is found. - * - * @param virtual_ip virtual ip address to assign - * @param iface_ip IP of an interface to attach virtual IP - * @return SUCCESS if operation completed - */ - status_t (*add_ip) (kernel_net_t *this, host_t *virtual_ip, - host_t *iface_ip); - - /** - * Remove a virtual IP from an interface. - * - * The kernel interface uses refcounting, see add_ip(). - * - * @param virtual_ip virtual ip address to assign - * @return SUCCESS if operation completed - */ - status_t (*del_ip) (kernel_net_t *this, host_t *virtual_ip); - - /** - * Add a route. - * - * @param dst_net destination net - * @param prefixlen destination net prefix length - * @param gateway gateway for this route - * @param src_ip sourc ip of the route - * @param if_name name of the interface the route is bound to - * @return SUCCESS if operation completed - * ALREADY_DONE if the route already exists - */ - status_t (*add_route) (kernel_net_t *this, chunk_t dst_net, u_int8_t prefixlen, - host_t *gateway, host_t *src_ip, char *if_name); - - /** - * Delete a route. - * - * @param dst_net destination net - * @param prefixlen destination net prefix length - * @param gateway gateway for this route - * @param src_ip sourc ip of the route - * @param if_name name of the interface the route is bound to - * @return SUCCESS if operation completed - */ - status_t (*del_route) (kernel_net_t *this, chunk_t dst_net, u_int8_t prefixlen, - host_t *gateway, host_t *src_ip, char *if_name); - - /** - * Destroy the implementation. - */ - void (*destroy) (kernel_net_t *this); -}; - -#endif /** KERNEL_NET_H_ @}*/ |