Moved host_t and host_resolver_t to a new networking subfolder
This commit is contained in:
Tobias Brunner
@@ -1,578 +0,0 @@
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/*
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* Copyright (C) 2006-2012 Tobias Brunner
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* Copyright (C) 2006 Daniel Roethlisberger
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* Copyright (C) 2005-2006 Martin Willi
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* Copyright (C) 2005 Jan Hutter
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "host.h"
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#include <debug.h>
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#include <library.h>
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#define IPV4_LEN 4
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#define IPV6_LEN 16
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typedef struct private_host_t private_host_t;
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/**
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* Private Data of a host object.
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*/
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struct private_host_t {
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/**
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* Public data
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*/
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host_t public;
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/**
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* low-lewel structure, which stores the address
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*/
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union {
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/** generic type */
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struct sockaddr address;
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/** maximum sockaddr size */
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struct sockaddr_storage address_max;
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/** IPv4 address */
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struct sockaddr_in address4;
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/** IPv6 address */
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struct sockaddr_in6 address6;
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};
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/**
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* length of address structure
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*/
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socklen_t socklen;
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};
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METHOD(host_t, get_sockaddr, sockaddr_t*,
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private_host_t *this)
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{
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return &(this->address);
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}
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METHOD(host_t, get_sockaddr_len, socklen_t*,
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private_host_t *this)
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{
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return &(this->socklen);
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}
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METHOD(host_t, is_anyaddr, bool,
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private_host_t *this)
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{
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static const u_int8_t zeroes[IPV6_LEN];
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switch (this->address.sa_family)
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{
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case AF_INET:
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{
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return memeq(zeroes, &(this->address4.sin_addr.s_addr), IPV4_LEN);
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}
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case AF_INET6:
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{
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return memeq(zeroes, &(this->address6.sin6_addr.s6_addr), IPV6_LEN);
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}
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default:
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{
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return FALSE;
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}
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}
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}
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/**
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* Described in header.
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*/
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int host_printf_hook(printf_hook_data_t *data, printf_hook_spec_t *spec,
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const void *const *args)
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{
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private_host_t *this = *((private_host_t**)(args[0]));
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char buffer[INET6_ADDRSTRLEN + 16];
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if (this == NULL)
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{
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snprintf(buffer, sizeof(buffer), "(null)");
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}
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else if (is_anyaddr(this) && !spec->plus)
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{
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snprintf(buffer, sizeof(buffer), "%%any%s",
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this->address.sa_family == AF_INET6 ? "6" : "");
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}
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else
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{
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void *address;
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u_int16_t port;
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int len;
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address = &this->address6.sin6_addr;
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port = this->address6.sin6_port;
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switch (this->address.sa_family)
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{
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case AF_INET:
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address = &this->address4.sin_addr;
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port = this->address4.sin_port;
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/* fall */
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case AF_INET6:
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if (inet_ntop(this->address.sa_family, address,
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buffer, sizeof(buffer)) == NULL)
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{
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snprintf(buffer, sizeof(buffer),
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"(address conversion failed)");
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}
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else if (spec->hash)
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{
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len = strlen(buffer);
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snprintf(buffer + len, sizeof(buffer) - len,
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"[%d]", ntohs(port));
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}
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break;
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default:
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snprintf(buffer, sizeof(buffer), "(family not supported)");
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break;
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}
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}
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if (spec->minus)
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{
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return print_in_hook(data, "%-*s", spec->width, buffer);
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}
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return print_in_hook(data, "%*s", spec->width, buffer);
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}
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METHOD(host_t, get_address, chunk_t,
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private_host_t *this)
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{
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chunk_t address = chunk_empty;
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switch (this->address.sa_family)
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{
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case AF_INET:
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{
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address.ptr = (char*)&(this->address4.sin_addr.s_addr);
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address.len = IPV4_LEN;
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return address;
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}
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case AF_INET6:
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{
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address.ptr = (char*)&(this->address6.sin6_addr.s6_addr);
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address.len = IPV6_LEN;
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return address;
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}
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default:
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{
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/* return empty chunk */
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return address;
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}
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}
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}
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METHOD(host_t, get_family, int,
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private_host_t *this)
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{
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return this->address.sa_family;
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}
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METHOD(host_t, get_port, u_int16_t,
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private_host_t *this)
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{
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switch (this->address.sa_family)
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{
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case AF_INET:
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{
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return ntohs(this->address4.sin_port);
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}
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case AF_INET6:
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{
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return ntohs(this->address6.sin6_port);
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}
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default:
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{
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return 0;
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}
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}
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}
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METHOD(host_t, set_port, void,
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private_host_t *this, u_int16_t port)
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{
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switch (this->address.sa_family)
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{
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case AF_INET:
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{
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this->address4.sin_port = htons(port);
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break;
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}
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case AF_INET6:
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{
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this->address6.sin6_port = htons(port);
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break;
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}
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default:
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{
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break;
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}
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}
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}
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METHOD(host_t, clone_, host_t*,
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private_host_t *this)
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{
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private_host_t *new;
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new = malloc_thing(private_host_t);
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memcpy(new, this, sizeof(private_host_t));
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return &new->public;
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}
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/**
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* Implements host_t.ip_equals
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*/
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static bool ip_equals(private_host_t *this, private_host_t *other)
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{
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if (this->address.sa_family != other->address.sa_family)
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{
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/* 0.0.0.0 and 0::0 are equal */
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return (is_anyaddr(this) && is_anyaddr(other));
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}
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switch (this->address.sa_family)
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{
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case AF_INET:
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{
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return memeq(&this->address4.sin_addr, &other->address4.sin_addr,
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sizeof(this->address4.sin_addr));
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}
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case AF_INET6:
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{
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return memeq(&this->address6.sin6_addr, &other->address6.sin6_addr,
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sizeof(this->address6.sin6_addr));
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}
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default:
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break;
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}
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return FALSE;
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}
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/**
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* Implements host_t.get_differences
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*/
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static host_diff_t get_differences(host_t *this, host_t *other)
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{
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host_diff_t ret = HOST_DIFF_NONE;
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if (!this->ip_equals(this, other))
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{
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ret |= HOST_DIFF_ADDR;
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}
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if (this->get_port(this) != other->get_port(other))
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{
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ret |= HOST_DIFF_PORT;
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}
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return ret;
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}
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/**
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* Implements host_t.equals
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*/
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static bool equals(private_host_t *this, private_host_t *other)
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{
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if (!ip_equals(this, other))
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{
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return FALSE;
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}
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switch (this->address.sa_family)
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{
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case AF_INET:
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{
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return (this->address4.sin_port == other->address4.sin_port);
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}
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case AF_INET6:
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{
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return (this->address6.sin6_port == other->address6.sin6_port);
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}
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default:
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break;
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}
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return FALSE;
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}
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METHOD(host_t, destroy, void,
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private_host_t *this)
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{
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free(this);
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}
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/**
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* Creates an empty host_t object
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*/
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static private_host_t *host_create_empty(void)
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{
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private_host_t *this;
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INIT(this,
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.public = {
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.get_sockaddr = _get_sockaddr,
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.get_sockaddr_len = _get_sockaddr_len,
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.clone = _clone_,
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.get_family = _get_family,
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.get_address = _get_address,
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.get_port = _get_port,
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.set_port = _set_port,
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.get_differences = get_differences,
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.ip_equals = (bool (*)(host_t *,host_t *))ip_equals,
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.equals = (bool (*)(host_t *,host_t *)) equals,
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.is_anyaddr = _is_anyaddr,
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.destroy = _destroy,
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},
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);
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return this;
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}
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/*
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* Create a %any host with port
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*/
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static host_t *host_create_any_port(int family, u_int16_t port)
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{
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host_t *this;
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this = host_create_any(family);
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this->set_port(this, port);
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return this;
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}
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/*
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* Described in header.
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*/
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host_t *host_create_from_string(char *string, u_int16_t port)
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{
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private_host_t *this;
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if (streq(string, "%any"))
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{
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return host_create_any_port(AF_INET, port);
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}
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if (streq(string, "%any6"))
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{
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return host_create_any_port(AF_INET6, port);
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}
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this = host_create_empty();
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if (strchr(string, '.'))
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{
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this->address.sa_family = AF_INET;
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}
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else
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{
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this->address.sa_family = AF_INET6;
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}
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switch (this->address.sa_family)
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{
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case AF_INET:
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{
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if (inet_pton(AF_INET, string, &this->address4.sin_addr) <=0)
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{
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break;
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}
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this->address4.sin_port = htons(port);
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this->socklen = sizeof(struct sockaddr_in);
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return &this->public;
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}
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case AF_INET6:
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{
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if (inet_pton(AF_INET6, string, &this->address6.sin6_addr) <=0)
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{
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break;
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}
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this->address6.sin6_port = htons(port);
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this->socklen = sizeof(struct sockaddr_in6);
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return &this->public;
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}
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default:
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{
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break;
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}
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}
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free(this);
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return NULL;
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}
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/*
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* Described in header.
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*/
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host_t *host_create_from_sockaddr(sockaddr_t *sockaddr)
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{
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private_host_t *this = host_create_empty();
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switch (sockaddr->sa_family)
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{
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case AF_INET:
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{
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memcpy(&this->address4, (struct sockaddr_in*)sockaddr,
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sizeof(struct sockaddr_in));
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this->socklen = sizeof(struct sockaddr_in);
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return &this->public;
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}
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case AF_INET6:
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{
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memcpy(&this->address6, (struct sockaddr_in6*)sockaddr,
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sizeof(struct sockaddr_in6));
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this->socklen = sizeof(struct sockaddr_in6);
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return &this->public;
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}
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default:
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break;
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}
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free(this);
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return NULL;
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}
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/*
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* Described in header.
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*/
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host_t *host_create_from_dns(char *string, int af, u_int16_t port)
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{
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host_t *this;
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this = lib->hosts->resolve(lib->hosts, string, af);
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if (this)
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{
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this->set_port(this, port);
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}
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return this;
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}
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/*
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* Described in header.
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*/
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host_t *host_create_from_chunk(int family, chunk_t address, u_int16_t port)
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{
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private_host_t *this;
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switch (family)
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{
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case AF_INET:
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if (address.len < IPV4_LEN)
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{
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return NULL;
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}
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address.len = IPV4_LEN;
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break;
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case AF_INET6:
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if (address.len < IPV6_LEN)
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{
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return NULL;
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}
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address.len = IPV6_LEN;
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break;
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case AF_UNSPEC:
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switch (address.len)
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{
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case IPV4_LEN:
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family = AF_INET;
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break;
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case IPV6_LEN:
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family = AF_INET6;
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break;
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default:
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return NULL;
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}
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break;
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default:
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return NULL;
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}
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this = host_create_empty();
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this->address.sa_family = family;
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switch (family)
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{
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case AF_INET:
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memcpy(&this->address4.sin_addr.s_addr, address.ptr, address.len);
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this->address4.sin_port = htons(port);
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this->socklen = sizeof(struct sockaddr_in);
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break;
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case AF_INET6:
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memcpy(&this->address6.sin6_addr.s6_addr, address.ptr, address.len);
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this->address6.sin6_port = htons(port);
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this->socklen = sizeof(struct sockaddr_in6);
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break;
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}
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return &this->public;
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}
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/*
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* Described in header.
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*/
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host_t *host_create_from_subnet(char *string, int *bits)
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{
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char *pos, buf[64];
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host_t *net;
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pos = strchr(string, '/');
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if (pos)
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{
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if (pos - string >= sizeof(buf))
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{
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return NULL;
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}
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strncpy(buf, string, pos - string);
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buf[pos - string] = '\0';
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*bits = atoi(pos + 1);
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return host_create_from_string(buf, 0);
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}
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net = host_create_from_string(string, 0);
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if (net)
|
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{
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if (net->get_family(net) == AF_INET)
|
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{
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*bits = 32;
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}
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else
|
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{
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*bits = 128;
|
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}
|
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}
|
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return net;
|
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}
|
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|
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/*
|
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* Described in header.
|
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*/
|
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host_t *host_create_any(int family)
|
||||
{
|
||||
private_host_t *this = host_create_empty();
|
||||
|
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memset(&this->address_max, 0, sizeof(struct sockaddr_storage));
|
||||
this->address.sa_family = family;
|
||||
|
||||
switch (family)
|
||||
{
|
||||
case AF_INET:
|
||||
{
|
||||
this->socklen = sizeof(struct sockaddr_in);
|
||||
return &(this->public);
|
||||
}
|
||||
case AF_INET6:
|
||||
{
|
||||
this->socklen = sizeof(struct sockaddr_in6);
|
||||
return &this->public;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
@@ -1,220 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2006-2009 Tobias Brunner
|
||||
* Copyright (C) 2006 Daniel Roethlisberger
|
||||
* Copyright (C) 2005-2008 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 host host
|
||||
* @{ @ingroup utils
|
||||
*/
|
||||
|
||||
#ifndef HOST_H_
|
||||
#define HOST_H_
|
||||
|
||||
typedef enum host_diff_t host_diff_t;
|
||||
typedef struct host_t host_t;
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/inet.h>
|
||||
|
||||
#include <chunk.h>
|
||||
|
||||
/**
|
||||
* Differences between two hosts. They differ in
|
||||
* address, port, or both.
|
||||
*/
|
||||
enum host_diff_t {
|
||||
HOST_DIFF_NONE = 0,
|
||||
HOST_DIFF_ADDR = 1,
|
||||
HOST_DIFF_PORT = 2,
|
||||
};
|
||||
|
||||
/**
|
||||
* Representates a Host
|
||||
*
|
||||
* Host object, identifies a address:port pair and defines some
|
||||
* useful functions on it.
|
||||
*/
|
||||
struct host_t {
|
||||
|
||||
/**
|
||||
* Build a clone of this host object.
|
||||
*
|
||||
* @return cloned host
|
||||
*/
|
||||
host_t *(*clone) (host_t *this);
|
||||
|
||||
/**
|
||||
* Get a pointer to the internal sockaddr struct.
|
||||
*
|
||||
* This is used for sending and receiving via sockets.
|
||||
*
|
||||
* @return pointer to the internal sockaddr structure
|
||||
*/
|
||||
sockaddr_t *(*get_sockaddr) (host_t *this);
|
||||
|
||||
/**
|
||||
* Get the length of the sockaddr struct.
|
||||
*
|
||||
* Depending on the family, the length of the sockaddr struct
|
||||
* is different. Use this function to get the length of the sockaddr
|
||||
* struct returned by get_sock_addr.
|
||||
*
|
||||
* This is used for sending and receiving via sockets.
|
||||
*
|
||||
* @return length of the sockaddr struct
|
||||
*/
|
||||
socklen_t *(*get_sockaddr_len) (host_t *this);
|
||||
|
||||
/**
|
||||
* Gets the family of the address
|
||||
*
|
||||
* @return family
|
||||
*/
|
||||
int (*get_family) (host_t *this);
|
||||
|
||||
/**
|
||||
* Checks if the ip address of host is set to default route.
|
||||
*
|
||||
* @return TRUE if host is 0.0.0.0 or 0::0, FALSE otherwise
|
||||
*/
|
||||
bool (*is_anyaddr) (host_t *this);
|
||||
|
||||
/**
|
||||
* Get the address of this host as chunk_t
|
||||
*
|
||||
* Returned chunk points to internal data.
|
||||
*
|
||||
* @return address string,
|
||||
*/
|
||||
chunk_t (*get_address) (host_t *this);
|
||||
|
||||
/**
|
||||
* Get the port of this host
|
||||
*
|
||||
* @return port number
|
||||
*/
|
||||
u_int16_t (*get_port) (host_t *this);
|
||||
|
||||
/**
|
||||
* Set the port of this host
|
||||
*
|
||||
* @param port port numer
|
||||
*/
|
||||
void (*set_port) (host_t *this, u_int16_t port);
|
||||
|
||||
/**
|
||||
* Compare the ips of two hosts hosts.
|
||||
*
|
||||
* @param other the other to compare
|
||||
* @return TRUE if addresses are equal.
|
||||
*/
|
||||
bool (*ip_equals) (host_t *this, host_t *other);
|
||||
|
||||
/**
|
||||
* Compare two hosts, with port.
|
||||
*
|
||||
* @param other the other to compare
|
||||
* @return TRUE if addresses and ports are equal.
|
||||
*/
|
||||
bool (*equals) (host_t *this, host_t *other);
|
||||
|
||||
/**
|
||||
* Compare two hosts and return the differences.
|
||||
*
|
||||
* @param other the other to compare
|
||||
* @return differences in a combination of host_diff_t's
|
||||
*/
|
||||
host_diff_t (*get_differences) (host_t *this, host_t *other);
|
||||
|
||||
/**
|
||||
* Destroy this host object.
|
||||
*/
|
||||
void (*destroy) (host_t *this);
|
||||
};
|
||||
|
||||
/**
|
||||
* Constructor to create a host_t object from an address string.
|
||||
*
|
||||
* @param string string of an address, such as "152.96.193.130"
|
||||
* @param port port number
|
||||
* @return host_t, NULL if string not an address.
|
||||
*/
|
||||
host_t *host_create_from_string(char *string, u_int16_t port);
|
||||
|
||||
/**
|
||||
* Constructor to create a host_t from a DNS name.
|
||||
*
|
||||
* @param string hostname to resolve
|
||||
* @param family family to prefer, 0 for first match
|
||||
* @param port port number
|
||||
* @return host_t, NULL lookup failed
|
||||
*/
|
||||
host_t *host_create_from_dns(char *string, int family, u_int16_t port);
|
||||
|
||||
/**
|
||||
* Constructor to create a host_t object from an address chunk.
|
||||
*
|
||||
* If family is AF_UNSPEC, it is guessed using address.len.
|
||||
*
|
||||
* @param family Address family, such as AF_INET or AF_INET6
|
||||
* @param address address as chunk_t in network order
|
||||
* @param port port number
|
||||
* @return host_t, NULL if family not supported/chunk invalid
|
||||
*/
|
||||
host_t *host_create_from_chunk(int family, chunk_t address, u_int16_t port);
|
||||
|
||||
/**
|
||||
* Constructor to create a host_t object from a sockaddr struct
|
||||
*
|
||||
* @param sockaddr sockaddr struct which contains family, address and port
|
||||
* @return host_t, NULL if family not supported
|
||||
*/
|
||||
host_t *host_create_from_sockaddr(sockaddr_t *sockaddr);
|
||||
|
||||
/**
|
||||
* Create a host from a CIDR subnet definition (1.2.3.0/24), return bits.
|
||||
*
|
||||
* @param string string to parse
|
||||
* @param bits gets the number of network bits in CIDR notation
|
||||
* @return network start address, NULL on error
|
||||
*/
|
||||
host_t *host_create_from_subnet(char *string, int *bits);
|
||||
|
||||
/**
|
||||
* Create a host without an address, a "any" host.
|
||||
*
|
||||
* @param family family of the any host
|
||||
* @return host_t, NULL if family not supported
|
||||
*/
|
||||
host_t *host_create_any(int family);
|
||||
|
||||
/**
|
||||
* printf hook function for host_t.
|
||||
*
|
||||
* Arguments are:
|
||||
* host_t *host
|
||||
* Use #-modifier to include port number
|
||||
* Use +-modifier to force numeric representation (instead of e.g. %any)
|
||||
*/
|
||||
int host_printf_hook(printf_hook_data_t *data, printf_hook_spec_t *spec,
|
||||
const void *const *args);
|
||||
|
||||
#endif /** HOST_H_ @}*/
|
||||
@@ -26,7 +26,7 @@
|
||||
typedef struct packet_t packet_t;
|
||||
|
||||
#include <library.h>
|
||||
#include <utils/host.h>
|
||||
#include <networking/host.h>
|
||||
|
||||
/**
|
||||
* Abstraction of an IP/UDP-Packet, contains data, sender and receiver.
|
||||
|
||||
@@ -24,7 +24,7 @@
|
||||
#define TUN_DEVICE_H_
|
||||
|
||||
#include <library.h>
|
||||
#include <utils/host.h>
|
||||
#include <networking/host.h>
|
||||
|
||||
typedef struct tun_device_t tun_device_t;
|
||||
|
||||
|
||||
Reference in New Issue
Block a user