diff options
Diffstat (limited to 'src/libstrongswan/utils/host.c')
-rw-r--r-- | src/libstrongswan/utils/host.c | 578 |
1 files changed, 0 insertions, 578 deletions
diff --git a/src/libstrongswan/utils/host.c b/src/libstrongswan/utils/host.c deleted file mode 100644 index 1d0614001..000000000 --- a/src/libstrongswan/utils/host.c +++ /dev/null @@ -1,578 +0,0 @@ -/* - * Copyright (C) 2006-2012 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. - */ - -#include "host.h" - -#include <debug.h> -#include <library.h> - -#define IPV4_LEN 4 -#define IPV6_LEN 16 - -typedef struct private_host_t private_host_t; - -/** - * Private Data of a host object. - */ -struct private_host_t { - /** - * Public data - */ - host_t public; - - /** - * low-lewel structure, which stores the address - */ - union { - /** generic type */ - struct sockaddr address; - /** maximum sockaddr size */ - struct sockaddr_storage address_max; - /** IPv4 address */ - struct sockaddr_in address4; - /** IPv6 address */ - struct sockaddr_in6 address6; - }; - /** - * length of address structure - */ - socklen_t socklen; -}; - - -METHOD(host_t, get_sockaddr, sockaddr_t*, - private_host_t *this) -{ - return &(this->address); -} - -METHOD(host_t, get_sockaddr_len, socklen_t*, - private_host_t *this) -{ - return &(this->socklen); -} - -METHOD(host_t, is_anyaddr, bool, - private_host_t *this) -{ - static const u_int8_t zeroes[IPV6_LEN]; - - switch (this->address.sa_family) - { - case AF_INET: - { - return memeq(zeroes, &(this->address4.sin_addr.s_addr), IPV4_LEN); - } - case AF_INET6: - { - return memeq(zeroes, &(this->address6.sin6_addr.s6_addr), IPV6_LEN); - } - default: - { - return FALSE; - } - } -} - -/** - * Described in header. - */ -int host_printf_hook(printf_hook_data_t *data, printf_hook_spec_t *spec, - const void *const *args) -{ - private_host_t *this = *((private_host_t**)(args[0])); - char buffer[INET6_ADDRSTRLEN + 16]; - - if (this == NULL) - { - snprintf(buffer, sizeof(buffer), "(null)"); - } - else if (is_anyaddr(this) && !spec->plus) - { - snprintf(buffer, sizeof(buffer), "%%any%s", - this->address.sa_family == AF_INET6 ? "6" : ""); - } - else - { - void *address; - u_int16_t port; - int len; - - address = &this->address6.sin6_addr; - port = this->address6.sin6_port; - - switch (this->address.sa_family) - { - case AF_INET: - address = &this->address4.sin_addr; - port = this->address4.sin_port; - /* fall */ - case AF_INET6: - - if (inet_ntop(this->address.sa_family, address, - buffer, sizeof(buffer)) == NULL) - { - snprintf(buffer, sizeof(buffer), - "(address conversion failed)"); - } - else if (spec->hash) - { - len = strlen(buffer); - snprintf(buffer + len, sizeof(buffer) - len, - "[%d]", ntohs(port)); - } - break; - default: - snprintf(buffer, sizeof(buffer), "(family not supported)"); - break; - } - } - if (spec->minus) - { - return print_in_hook(data, "%-*s", spec->width, buffer); - } - return print_in_hook(data, "%*s", spec->width, buffer); -} - -METHOD(host_t, get_address, chunk_t, - private_host_t *this) -{ - chunk_t address = chunk_empty; - - switch (this->address.sa_family) - { - case AF_INET: - { - address.ptr = (char*)&(this->address4.sin_addr.s_addr); - address.len = IPV4_LEN; - return address; - } - case AF_INET6: - { - address.ptr = (char*)&(this->address6.sin6_addr.s6_addr); - address.len = IPV6_LEN; - return address; - } - default: - { - /* return empty chunk */ - return address; - } - } -} - -METHOD(host_t, get_family, int, - private_host_t *this) -{ - return this->address.sa_family; -} - -METHOD(host_t, get_port, u_int16_t, - private_host_t *this) -{ - switch (this->address.sa_family) - { - case AF_INET: - { - return ntohs(this->address4.sin_port); - } - case AF_INET6: - { - return ntohs(this->address6.sin6_port); - } - default: - { - return 0; - } - } -} - -METHOD(host_t, set_port, void, - private_host_t *this, u_int16_t port) -{ - switch (this->address.sa_family) - { - case AF_INET: - { - this->address4.sin_port = htons(port); - break; - } - case AF_INET6: - { - this->address6.sin6_port = htons(port); - break; - } - default: - { - break; - } - } -} - -METHOD(host_t, clone_, host_t*, - private_host_t *this) -{ - private_host_t *new; - - new = malloc_thing(private_host_t); - memcpy(new, this, sizeof(private_host_t)); - - return &new->public; -} - -/** - * Implements host_t.ip_equals - */ -static bool ip_equals(private_host_t *this, private_host_t *other) -{ - if (this->address.sa_family != other->address.sa_family) - { - /* 0.0.0.0 and 0::0 are equal */ - return (is_anyaddr(this) && is_anyaddr(other)); - } - - switch (this->address.sa_family) - { - case AF_INET: - { - return memeq(&this->address4.sin_addr, &other->address4.sin_addr, - sizeof(this->address4.sin_addr)); - } - case AF_INET6: - { - return memeq(&this->address6.sin6_addr, &other->address6.sin6_addr, - sizeof(this->address6.sin6_addr)); - } - default: - break; - } - return FALSE; -} - -/** - * Implements host_t.get_differences - */ -static host_diff_t get_differences(host_t *this, host_t *other) -{ - host_diff_t ret = HOST_DIFF_NONE; - - if (!this->ip_equals(this, other)) - { - ret |= HOST_DIFF_ADDR; - } - - if (this->get_port(this) != other->get_port(other)) - { - ret |= HOST_DIFF_PORT; - } - - return ret; -} - -/** - * Implements host_t.equals - */ -static bool equals(private_host_t *this, private_host_t *other) -{ - if (!ip_equals(this, other)) - { - return FALSE; - } - - switch (this->address.sa_family) - { - case AF_INET: - { - return (this->address4.sin_port == other->address4.sin_port); - } - case AF_INET6: - { - return (this->address6.sin6_port == other->address6.sin6_port); - } - default: - break; - } - return FALSE; -} - -METHOD(host_t, destroy, void, - private_host_t *this) -{ - free(this); -} - -/** - * Creates an empty host_t object - */ -static private_host_t *host_create_empty(void) -{ - private_host_t *this; - - INIT(this, - .public = { - .get_sockaddr = _get_sockaddr, - .get_sockaddr_len = _get_sockaddr_len, - .clone = _clone_, - .get_family = _get_family, - .get_address = _get_address, - .get_port = _get_port, - .set_port = _set_port, - .get_differences = get_differences, - .ip_equals = (bool (*)(host_t *,host_t *))ip_equals, - .equals = (bool (*)(host_t *,host_t *)) equals, - .is_anyaddr = _is_anyaddr, - .destroy = _destroy, - }, - ); - - return this; -} - -/* - * Create a %any host with port - */ -static host_t *host_create_any_port(int family, u_int16_t port) -{ - host_t *this; - - this = host_create_any(family); - this->set_port(this, port); - return this; -} - -/* - * Described in header. - */ -host_t *host_create_from_string(char *string, u_int16_t port) -{ - private_host_t *this; - - if (streq(string, "%any")) - { - return host_create_any_port(AF_INET, port); - } - if (streq(string, "%any6")) - { - return host_create_any_port(AF_INET6, port); - } - - this = host_create_empty(); - if (strchr(string, '.')) - { - this->address.sa_family = AF_INET; - } - else - { - this->address.sa_family = AF_INET6; - } - switch (this->address.sa_family) - { - case AF_INET: - { - if (inet_pton(AF_INET, string, &this->address4.sin_addr) <=0) - { - break; - } - this->address4.sin_port = htons(port); - this->socklen = sizeof(struct sockaddr_in); - return &this->public; - } - case AF_INET6: - { - if (inet_pton(AF_INET6, string, &this->address6.sin6_addr) <=0) - { - break; - } - this->address6.sin6_port = htons(port); - this->socklen = sizeof(struct sockaddr_in6); - return &this->public; - } - default: - { - break; - } - } - free(this); - return NULL; -} - -/* - * Described in header. - */ -host_t *host_create_from_sockaddr(sockaddr_t *sockaddr) -{ - private_host_t *this = host_create_empty(); - - switch (sockaddr->sa_family) - { - case AF_INET: - { - memcpy(&this->address4, (struct sockaddr_in*)sockaddr, - sizeof(struct sockaddr_in)); - this->socklen = sizeof(struct sockaddr_in); - return &this->public; - } - case AF_INET6: - { - memcpy(&this->address6, (struct sockaddr_in6*)sockaddr, - sizeof(struct sockaddr_in6)); - this->socklen = sizeof(struct sockaddr_in6); - return &this->public; - } - default: - break; - } - free(this); - return NULL; -} - -/* - * Described in header. - */ -host_t *host_create_from_dns(char *string, int af, u_int16_t port) -{ - host_t *this; - - this = lib->hosts->resolve(lib->hosts, string, af); - if (this) - { - this->set_port(this, port); - } - return this; -} - -/* - * Described in header. - */ -host_t *host_create_from_chunk(int family, chunk_t address, u_int16_t port) -{ - private_host_t *this; - - switch (family) - { - case AF_INET: - if (address.len < IPV4_LEN) - { - return NULL; - } - address.len = IPV4_LEN; - break; - case AF_INET6: - if (address.len < IPV6_LEN) - { - return NULL; - } - address.len = IPV6_LEN; - break; - case AF_UNSPEC: - switch (address.len) - { - case IPV4_LEN: - family = AF_INET; - break; - case IPV6_LEN: - family = AF_INET6; - break; - default: - return NULL; - } - break; - default: - return NULL; - } - this = host_create_empty(); - this->address.sa_family = family; - switch (family) - { - case AF_INET: - memcpy(&this->address4.sin_addr.s_addr, address.ptr, address.len); - this->address4.sin_port = htons(port); - this->socklen = sizeof(struct sockaddr_in); - break; - case AF_INET6: - memcpy(&this->address6.sin6_addr.s6_addr, address.ptr, address.len); - this->address6.sin6_port = htons(port); - this->socklen = sizeof(struct sockaddr_in6); - break; - } - return &this->public; -} - -/* - * Described in header. - */ -host_t *host_create_from_subnet(char *string, int *bits) -{ - char *pos, buf[64]; - host_t *net; - - pos = strchr(string, '/'); - if (pos) - { - if (pos - string >= sizeof(buf)) - { - return NULL; - } - strncpy(buf, string, pos - string); - buf[pos - string] = '\0'; - *bits = atoi(pos + 1); - return host_create_from_string(buf, 0); - } - net = host_create_from_string(string, 0); - if (net) - { - if (net->get_family(net) == AF_INET) - { - *bits = 32; - } - else - { - *bits = 128; - } - } - return net; -} - -/* - * Described in header. - */ -host_t *host_create_any(int family) -{ - private_host_t *this = host_create_empty(); - - 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; -} |