diff options
Diffstat (limited to 'src/charon/encoding/payloads/endpoint_notify.c')
| -rw-r--r-- | src/charon/encoding/payloads/endpoint_notify.c | 422 |
1 files changed, 0 insertions, 422 deletions
diff --git a/src/charon/encoding/payloads/endpoint_notify.c b/src/charon/encoding/payloads/endpoint_notify.c deleted file mode 100644 index faec1ea71..000000000 --- a/src/charon/encoding/payloads/endpoint_notify.c +++ /dev/null @@ -1,422 +0,0 @@ -/* - * Copyright (C) 2007 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 "endpoint_notify.h" - -#include <math.h> - -#include <daemon.h> - -typedef struct private_endpoint_notify_t private_endpoint_notify_t; - -/** - * Private data of an notify_payload_t object. - */ -struct private_endpoint_notify_t { - /** - * Public endpoint_notify_t interface. - */ - endpoint_notify_t public; - - /** - * Priority - */ - u_int32_t priority; - - /** - * Family - */ - me_endpoint_family_t family; - - /** - * Endpoint type - */ - me_endpoint_type_t type; - - /** - * Endpoint - */ - host_t *endpoint; - - /** - * Base (used for server reflexive endpoints) - */ - host_t *base; -}; - -/* Notification data: - 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ! Priority ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ! Family ! Type ! Port ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ! IP Address (variable) ! - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -*/ - -ENUM(me_endpoint_type_names, HOST, RELAYED, - "HOST", - "PEER_REFLEXIVE", - "SERVER_REFLEXIVE", - "RELAYED" -); - -/** - * Helper functions to parse integer values - */ -static status_t parse_uint8(u_int8_t **cur, u_int8_t *top, u_int8_t *val) -{ - if (*cur + sizeof(u_int8_t) > top) - { - return FAILED; - } - *val = *(u_int8_t*)*cur; - *cur += sizeof(u_int8_t); - return SUCCESS; -} - -static status_t parse_uint16(u_int8_t **cur, u_int8_t *top, u_int16_t *val) -{ - if (*cur + sizeof(u_int16_t) > top) - { - return FAILED; - } - *val = ntohs(*(u_int16_t*)*cur); - *cur += sizeof(u_int16_t); - return SUCCESS; -} - -static status_t parse_uint32(u_int8_t **cur, u_int8_t *top, u_int32_t *val) -{ - if (*cur + sizeof(u_int32_t) > top) - { - return FAILED; - } - *val = ntohl(*(u_int32_t*)*cur); - *cur += sizeof(u_int32_t); - return SUCCESS; -} - -/** - * Parses the notification data of a ME_ENDPOINT notify - */ -static status_t parse_notification_data(private_endpoint_notify_t *this, chunk_t data) -{ - u_int8_t family, type, addr_family; - u_int16_t port; - chunk_t addr; - u_int8_t *cur = data.ptr; - u_int8_t *top = data.ptr + data.len; - - DBG3(DBG_IKE, "me_endpoint_data %B", &data); - - if (parse_uint32(&cur, top, &this->priority) != SUCCESS) - { - DBG1(DBG_IKE, "failed to parse ME_ENDPOINT: invalid priority"); - return FAILED; - } - - if (parse_uint8(&cur, top, &family) != SUCCESS || family >= MAX_FAMILY) - { - DBG1(DBG_IKE, "failed to parse ME_ENDPOINT: invalid family"); - return FAILED; - } - this->family = (me_endpoint_family_t)family; - - if (parse_uint8(&cur, top, &type) != SUCCESS || - type == NO_TYPE || type >= MAX_TYPE) - { - DBG1(DBG_IKE, "failed to parse ME_ENDPOINT: invalid type"); - return FAILED; - } - this->type = (me_endpoint_type_t)type; - - addr_family = AF_INET; - addr.len = 4; - - switch(this->family) - { - case IPv6: - addr_family = AF_INET6; - addr.len = 16; - /* fall-through */ - case IPv4: - if (parse_uint16(&cur, top, &port) != SUCCESS) - { - DBG1(DBG_IKE, "failed to parse ME_ENDPOINT: invalid port"); - return FAILED; - } - - if (cur + addr.len > top) - { - DBG1(DBG_IKE, "failed to parse ME_ENDPOINT: invalid IP address"); - return FAILED; - } - - addr.ptr = cur; - this->endpoint = host_create_from_chunk(addr_family, addr, port); - break; - case NO_FAMILY: - default: - this->endpoint = NULL; - break; - } - return SUCCESS; -} - - -/** - * Generates the notification data of a ME_ENDPOINT notify - */ -static chunk_t build_notification_data(private_endpoint_notify_t *this) -{ - chunk_t prio_chunk, family_chunk, type_chunk, port_chunk, addr_chunk; - chunk_t data; - u_int32_t prio; - u_int16_t port; - u_int8_t family, type; - - prio = htonl(this->priority); - prio_chunk = chunk_from_thing(prio); - family = this->family; - family_chunk = chunk_from_thing(family); - type = this->type; - type_chunk = chunk_from_thing(type); - - if (this->endpoint) - { - port = htons(this->endpoint->get_port(this->endpoint)); - addr_chunk = this->endpoint->get_address(this->endpoint); - } - else - { - port = 0; - addr_chunk = chunk_empty; - } - port_chunk = chunk_from_thing(port); - - /* data = prio | family | type | port | addr */ - data = chunk_cat("ccccc", prio_chunk, family_chunk, type_chunk, - port_chunk, addr_chunk); - DBG3(DBG_IKE, "me_endpoint_data %B", &data); - return data; -} - -/** - * Implementation of endpoint_notify_t.build_notify - */ -static notify_payload_t *build_notify(private_endpoint_notify_t *this) -{ - chunk_t data; - notify_payload_t *notify; - - notify = notify_payload_create(); - notify->set_notify_type(notify, ME_ENDPOINT); - data = build_notification_data(this); - notify->set_notification_data(notify, data); - chunk_free(&data); - - return notify; -} - -/** - * Implementation of endpoint_notify_t.get_priority. - */ -static u_int32_t get_priority(private_endpoint_notify_t *this) -{ - return this->priority; -} - -/** - * Implementation of endpoint_notify_t.set_priority. - */ -static void set_priority(private_endpoint_notify_t *this, u_int32_t priority) -{ - this->priority = priority; -} - -/** - * Implementation of endpoint_notify_t.get_type. - */ -static me_endpoint_type_t get_type(private_endpoint_notify_t *this) -{ - return this->type; -} - -/** - * Implementation of endpoint_notify_t.get_family. - */ -static me_endpoint_family_t get_family(private_endpoint_notify_t *this) -{ - return this->family; -} - -/** - * Implementation of endpoint_notify_t.get_host. - */ -static host_t *get_host(private_endpoint_notify_t *this) -{ - return this->endpoint; -} - -/** - * Implementation of endpoint_notify_t.get_base. - */ -static host_t *get_base(private_endpoint_notify_t *this) -{ - return (!this->base) ? this->endpoint : this->base; -} - -/** - * Implementation of endpoint_notify_t.clone. - */ -static endpoint_notify_t *_clone(private_endpoint_notify_t *this) -{ - private_endpoint_notify_t *clone = (private_endpoint_notify_t*)endpoint_notify_create(); - - clone->priority = this->priority; - clone->type = this->type; - clone->family = this->family; - if (this->endpoint) - { - clone->endpoint = this->endpoint->clone(this->endpoint); - } - - if (this->base) - { - clone->base = this->base->clone(this->base); - } - - return &clone->public; -} - -/** - * Implementation of endpoint_notify_t.destroy. - */ -static status_t destroy(private_endpoint_notify_t *this) -{ - DESTROY_IF(this->endpoint); - DESTROY_IF(this->base); - free(this); - return SUCCESS; -} - -/* - * Described in header - */ -endpoint_notify_t *endpoint_notify_create() -{ - private_endpoint_notify_t *this = malloc_thing(private_endpoint_notify_t); - - /* public functions */ - this->public.get_priority = (u_int32_t (*) (endpoint_notify_t *)) get_priority; - this->public.set_priority = (void (*) (endpoint_notify_t *, u_int32_t)) set_priority; - this->public.get_type = (me_endpoint_type_t (*) (endpoint_notify_t *)) get_type; - this->public.get_family = (me_endpoint_family_t (*) (endpoint_notify_t *)) get_family; - this->public.get_host = (host_t *(*) (endpoint_notify_t *)) get_host; - this->public.get_base = (host_t *(*) (endpoint_notify_t *)) get_base; - this->public.build_notify = (notify_payload_t *(*) (endpoint_notify_t *)) build_notify; - this->public.clone = (endpoint_notify_t *(*) (endpoint_notify_t *)) _clone; - this->public.destroy = (void (*) (endpoint_notify_t *)) destroy; - - /* set default values of the fields */ - this->priority = 0; - this->family = NO_FAMILY; - this->type = NO_TYPE; - this->endpoint = NULL; - this->base = NULL; - - return &this->public; -} - -/** - * Described in header - */ -endpoint_notify_t *endpoint_notify_create_from_host(me_endpoint_type_t type, host_t *host, host_t *base) -{ - private_endpoint_notify_t *this = (private_endpoint_notify_t*)endpoint_notify_create(); - - this->type = type; - - switch(type) - { - case HOST: - this->priority = pow(2, 16) * ME_PRIO_HOST; - break; - case PEER_REFLEXIVE: - this->priority = pow(2, 16) * ME_PRIO_PEER; - break; - case SERVER_REFLEXIVE: - this->priority = pow(2, 16) * ME_PRIO_SERVER; - break; - case RELAYED: - default: - this->priority = pow(2, 16) * ME_PRIO_RELAY; - break; - } - - /* FIXME: if there is more than one ip address we should vary this priority */ - this->priority += 65535; - - if (!host) - { - return &this->public; - } - - switch(host->get_family(host)) - { - case AF_INET: - this->family = IPv4; - break; - case AF_INET6: - this->family = IPv6; - break; - default: - /* unsupported family type, we do not set the host - * (family is set to NO_FAMILY) */ - return &this->public; - } - - this->endpoint = host->clone(host); - - if (base) - { - this->base = base->clone(base); - } - - return &this->public; -} - -/** - * Described in header - */ -endpoint_notify_t *endpoint_notify_create_from_payload(notify_payload_t *notify) -{ - if (notify->get_notify_type(notify) != ME_ENDPOINT) - { - return NULL; - } - - private_endpoint_notify_t *this = (private_endpoint_notify_t*)endpoint_notify_create(); - chunk_t data = notify->get_notification_data(notify); - if (parse_notification_data(this, data) != SUCCESS) - { - destroy(this); - return NULL; - } - return &this->public; -} |