From f84dc62cc602eacb0daee3e9918a68b711ba94f0 Mon Sep 17 00:00:00 2001 From: Othmar Gsenger Date: Sat, 8 Dec 2007 20:59:57 +0000 Subject: removed isakmpd --- keyexchange/isakmpd-20041012/udp.c | 573 ------------------------------------- 1 file changed, 573 deletions(-) delete mode 100644 keyexchange/isakmpd-20041012/udp.c (limited to 'keyexchange/isakmpd-20041012/udp.c') diff --git a/keyexchange/isakmpd-20041012/udp.c b/keyexchange/isakmpd-20041012/udp.c deleted file mode 100644 index 090297b..0000000 --- a/keyexchange/isakmpd-20041012/udp.c +++ /dev/null @@ -1,573 +0,0 @@ -/* $OpenBSD: udp.c,v 1.79 2004/08/08 19:11:06 deraadt Exp $ */ -/* $EOM: udp.c,v 1.57 2001/01/26 10:09:57 niklas Exp $ */ - -/* - * Copyright (c) 1998, 1999, 2001 Niklas Hallqvist. All rights reserved. - * Copyright (c) 2000 Angelos D. Keromytis. All rights reserved. - * Copyright (c) 2003, 2004 Håkan Olsson. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * This code was written under funding by Ericsson Radio Systems. - */ - -#include -#include -#include -#ifndef linux -#include -#endif -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "sysdep.h" - -#include "conf.h" -#include "if.h" -#include "isakmp.h" -#include "log.h" -#include "message.h" -#include "monitor.h" -#include "sysdep.h" -#include "transport.h" -#include "udp.h" -#include "util.h" -#include "virtual.h" - -#define UDP_SIZE 65536 - -/* If a system doesn't have SO_REUSEPORT, SO_REUSEADDR will have to do. */ -#ifndef SO_REUSEPORT -#define SO_REUSEPORT SO_REUSEADDR -#endif - -/* These are reused by udp_encap.c, thus not 'static' here. */ -struct transport *udp_clone(struct transport *, struct sockaddr *); -int udp_fd_set(struct transport *, fd_set *, int); -int udp_fd_isset(struct transport *, fd_set *); -void udp_get_dst(struct transport *, struct sockaddr **); -void udp_get_src(struct transport *, struct sockaddr **); -char *udp_decode_ids(struct transport *); -void udp_remove(struct transport *); - -static struct transport *udp_create(char *); -static void udp_report(struct transport *); -static void udp_handle_message(struct transport *); -static struct transport *udp_make(struct sockaddr *); -static int udp_send_message(struct message *, struct transport *); -#if 0 -static in_port_t udp_decode_port(char *); -#endif - -static struct transport_vtbl udp_transport_vtbl = { - {0}, "udp_physical", - udp_create, - 0, - udp_remove, - udp_report, - udp_fd_set, - udp_fd_isset, - udp_handle_message, - udp_send_message, - udp_get_dst, - udp_get_src, - udp_decode_ids, - udp_clone, - 0 -}; - -char *udp_default_port = 0; -char *udp_bind_port = 0; -int bind_family = 0; - -void -udp_init(void) -{ - transport_method_add(&udp_transport_vtbl); -} - -/* Create a UDP transport structure bound to LADDR just for listening. */ -static struct transport * -udp_make(struct sockaddr *laddr) -{ - struct udp_transport *t = 0; - int s, on, wildcardaddress = 0; - char *tstr; - - t = calloc(1, sizeof *t); - if (!t) { - log_print("udp_make: calloc (1, %lu) failed", - (unsigned long)sizeof *t); - free(laddr); - return 0; - } - t->src = laddr; - - s = socket(laddr->sa_family, SOCK_DGRAM, IPPROTO_UDP); - if (s == -1) { - log_error("udp_make: socket (%d, %d, %d)", laddr->sa_family, - SOCK_DGRAM, IPPROTO_UDP); - goto err; - } - /* Make sure we don't get our traffic encrypted. */ - if (sysdep_cleartext(s, laddr->sa_family) == -1) - goto err; - - /* Wildcard address ? */ - switch (laddr->sa_family) { - case AF_INET: - if (((struct sockaddr_in *)laddr)->sin_addr.s_addr == - INADDR_ANY) - wildcardaddress = 1; - break; - case AF_INET6: - if (IN6_IS_ADDR_UNSPECIFIED(&((struct sockaddr_in6 *)laddr)->sin6_addr)) - wildcardaddress = 1; - break; - } - - /* - * In order to have several bound specific address-port combinations - * with the same port SO_REUSEADDR is needed. If this is a wildcard - * socket and we are not listening there, but only sending from it - * make sure it is entirely reuseable with SO_REUSEPORT. - */ - on = 1; - if (setsockopt(s, SOL_SOCKET, - wildcardaddress ? SO_REUSEPORT : SO_REUSEADDR, - (void *)&on, sizeof on) == -1) { - log_error("udp_make: setsockopt (%d, %d, %d, %p, %lu)", s, - SOL_SOCKET, wildcardaddress ? SO_REUSEPORT : SO_REUSEADDR, - &on, (unsigned long)sizeof on); - goto err; - } - t->transport.vtbl = &udp_transport_vtbl; - if (monitor_bind(s, t->src, sysdep_sa_len(t->src))) { - if (sockaddr2text(t->src, &tstr, 0)) - log_error("udp_make: bind (%d, %p, %lu)", s, &t->src, - (unsigned long)sizeof t->src); - else { - log_error("udp_make: bind (%d, %s, %lu)", s, tstr, - (unsigned long)sizeof t->src); - free(tstr); - } - goto err; - } - t->s = s; - if (sockaddr2text(t->src, &tstr, 0)) - LOG_DBG((LOG_MISC, 20, "udp_make: " - "transport %p socket %d family %d", t, s, - t->src->sa_family == AF_INET ? 4 : 6)); - else { - LOG_DBG((LOG_MISC, 20, "udp_make: " - "transport %p socket %d ip %s port %d", t, s, - tstr, ntohs(sockaddr_port(t->src)))); - free (tstr); - } - transport_setup(&t->transport, 0); - t->transport.flags |= TRANSPORT_LISTEN; - return &t->transport; - -err: - if (s >= 0) - close(s); - if (t) { - /* Already closed. */ - t->s = -1; - udp_remove(&t->transport); - } - return 0; -} - -/* Clone a listen transport U, record a destination RADDR for outbound use. */ -struct transport * -udp_clone(struct transport *ut, struct sockaddr *raddr) -{ - struct udp_transport *u = (struct udp_transport *)ut; - struct udp_transport *u2; - struct transport *t; - - t = malloc(sizeof *u); - if (!t) { - log_error("udp_clone: malloc (%lu) failed", - (unsigned long)sizeof *u); - return 0; - } - u2 = (struct udp_transport *)t; - - memcpy(u2, u, sizeof *u); - - u2->src = malloc(sysdep_sa_len(u->src)); - if (!u2->src) { - log_error("udp_clone: malloc (%d) failed", - sysdep_sa_len(u->src)); - free(t); - return 0; - } - memcpy(u2->src, u->src, sysdep_sa_len(u->src)); - - u2->dst = malloc(sysdep_sa_len(raddr)); - if (!u2->dst) { - log_error("udp_clone: malloc (%d) failed", - sysdep_sa_len(raddr)); - free(u2->src); - free(t); - return 0; - } - memcpy(u2->dst, raddr, sysdep_sa_len(raddr)); - - t->flags &= ~TRANSPORT_LISTEN; - transport_setup(t, 0); - return t; -} - -/* - * Initialize an object of the UDP transport class. Fill in the local - * IP address and port information and create a server socket bound to - * that specific port. Add the polymorphic transport structure to the - * system-wide pools of known ISAKMP transports. - */ -struct transport * -udp_bind(const struct sockaddr *addr) -{ - struct sockaddr *src; - - src = malloc(sysdep_sa_len((struct sockaddr *)addr)); - if (!src) - return 0; - - memcpy(src, addr, sysdep_sa_len((struct sockaddr *)addr)); - return udp_make(src); -} - -/* - * NAME is a section name found in the config database. Setup and return - * a transport useable to talk to the peer specified by that name. - */ -static struct transport * -udp_create(char *name) -{ - struct virtual_transport *v; - struct udp_transport *u; - struct transport *rv, *t; - struct sockaddr *dst, *addr; - char *addr_str, *port_str; - struct conf_list *addr_list = 0; - struct conf_list_node *addr_node; - - port_str = conf_get_str(name, "Port"); - if (!port_str) - port_str = udp_default_port; - if (!port_str) - port_str = UDP_DEFAULT_PORT_STR; - - addr_str = conf_get_str(name, "Address"); - if (!addr_str) { - log_print("udp_create: no address configured for \"%s\"", - name); - return 0; - } - if (text2sockaddr(addr_str, port_str, &dst)) { - log_print("udp_create: address \"%s\" not understood", - addr_str); - return 0; - } - addr_str = conf_get_str(name, "Local-address"); - if (!addr_str) - addr_list = conf_get_list("General", "Listen-on"); - if (!addr_str && !addr_list) { - v = virtual_get_default(dst->sa_family); - u = (struct udp_transport *)v->main; - - if (!u) { - log_print("udp_create: no default transport"); - rv = 0; - goto ret; - } else { - rv = udp_clone((struct transport *)u, dst); - if (rv) - rv->vtbl = &udp_transport_vtbl; - goto ret; - } - } - - if (addr_list) { - for (addr_node = TAILQ_FIRST(&addr_list->fields); - addr_node; addr_node = TAILQ_NEXT(addr_node, link)) - if (text2sockaddr(addr_node->field, port_str, &addr) - == 0) { - v = virtual_listen_lookup(addr); - free(addr); - if (v) { - addr_str = addr_node->field; - break; - } - } - if (!addr_str) { - log_print("udp_create: no matching listener found"); - rv = 0; - goto ret; - } - } - if (text2sockaddr(addr_str, port_str, &addr)) { - log_print("udp_create: address \"%s\" not understood", - addr_str); - rv = 0; - goto ret; - } - - v = virtual_listen_lookup(addr); - free(addr); - if (!v) { - log_print("udp_create: %s:%s must exist as a listener too", - addr_str, port_str); - rv = 0; - goto ret; - } - t = (struct transport *)v; - rv = udp_clone(v->main, dst); - if (rv) - rv->vtbl = &udp_transport_vtbl; - -ret: - if (addr_list) - conf_free_list(addr_list); - free(dst); - return rv; -} - -void -udp_remove(struct transport *t) -{ - struct udp_transport *u = (struct udp_transport *)t; - - if (u->src) - free(u->src); - if (u->dst) - free(u->dst); - if ((t->flags & TRANSPORT_LISTEN) && u->s >= 0) - close(u->s); - if (t->link.le_prev) - LIST_REMOVE(t, link); - - LOG_DBG((LOG_TRANSPORT, 90, "udp_remove: removed transport %p", t)); - free(t); -} - -/* Report transport-method specifics of the T transport. */ -void -udp_report(struct transport *t) -{ - struct udp_transport *u = (struct udp_transport *)t; - char *src = NULL, *dst = NULL; - in_port_t sport, dport; - - if (sockaddr2text(u->src, &src, 0)) - goto ret; - sport = sockaddr_port(u->src); - - if (!u->dst || sockaddr2text(u->dst, &dst, 0)) - dst = 0; - dport = dst ? sockaddr_port(u->dst) : 0; - - LOG_DBG((LOG_REPORT, 0, "udp_report: fd %d src %s:%u dst %s:%u", u->s, - src, ntohs(sport), dst ? dst : "", ntohs(dport))); - -ret: - if (dst) - free(dst); - if (src) - free(src); -} - -/* - * A message has arrived on transport T's socket. If T is single-ended, - * clone it into a double-ended transport which we will use from now on. - * Package the message as we want it and continue processing in the message - * module. - */ -static void -udp_handle_message(struct transport *t) -{ - struct udp_transport *u = (struct udp_transport *)t; - u_int8_t buf[UDP_SIZE]; - struct sockaddr_storage from; - u_int32_t len = sizeof from; - ssize_t n; - struct message *msg; - - n = recvfrom(u->s, buf, UDP_SIZE, 0, (struct sockaddr *)&from, &len); - if (n == -1) { - log_error("recvfrom (%d, %p, %d, %d, %p, %p)", u->s, buf, - UDP_SIZE, 0, &from, &len); - return; - } - /* - * Make a specialized UDP transport structure out of the incoming - * transport and the address information we got from recvfrom(2). - */ - t = t->virtual->vtbl->clone(t->virtual, (struct sockaddr *)&from); - if (!t) - return; - - msg = message_alloc(t, buf, n); - if (!msg) { - log_error("failed to allocate message structure, dropping " - "packet received on transport %p", u); - t->vtbl->remove(t); - return; - } - message_recv(msg); -} - -/* Physically send the message MSG over its associated transport. */ -static int -udp_send_message(struct message *msg, struct transport *t) -{ - struct udp_transport *u = (struct udp_transport *)t; - ssize_t n; - struct msghdr m; - - /* - * Sending on connected sockets requires that no destination address is - * given, or else EISCONN will occur. - */ - m.msg_name = (caddr_t) u->dst; - m.msg_namelen = sysdep_sa_len(u->dst); - m.msg_iov = msg->iov; - m.msg_iovlen = msg->iovlen; - m.msg_control = 0; - m.msg_controllen = 0; - m.msg_flags = 0; - n = sendmsg(u->s, &m, 0); - if (n == -1) { - /* XXX We should check whether the address has gone away */ - log_error("sendmsg (%d, %p, %d)", u->s, &m, 0); - return -1; - } - return 0; -} - -int -udp_fd_set(struct transport *t, fd_set *fds, int bit) -{ - struct udp_transport *u = (struct udp_transport *)t; - - if (bit) - FD_SET(u->s, fds); - else - FD_CLR(u->s, fds); - - return u->s + 1; -} - -int -udp_fd_isset(struct transport *t, fd_set *fds) -{ - struct udp_transport *u = (struct udp_transport *)t; - - return FD_ISSET(u->s, fds); -} - -/* - * Get transport T's peer address and stuff it into the sockaddr pointed - * to by DST. - */ -void -udp_get_dst(struct transport *t, struct sockaddr **dst) -{ - *dst = ((struct udp_transport *)t)->dst; -} - -/* - * Get transport T's local address and stuff it into the sockaddr pointed - * to by SRC. Put its length into SRC_LEN. - */ -void -udp_get_src(struct transport *t, struct sockaddr **src) -{ - *src = ((struct udp_transport *)t)->src; -} - -char * -udp_decode_ids(struct transport *t) -{ - struct sockaddr *src, *dst; - static char result[1024]; - char idsrc[256], iddst[256]; - - t->vtbl->get_src(t, &src); - t->vtbl->get_dst(t, &dst); - - if (getnameinfo(src, sysdep_sa_len(src), idsrc, sizeof idsrc, NULL, 0, - NI_NUMERICHOST) != 0) { - log_print("udp_decode_ids: getnameinfo () failed for 'src'"); - strlcpy(idsrc, "", 256); - } - if (getnameinfo(dst, sysdep_sa_len(dst), iddst, sizeof iddst, NULL, 0, - NI_NUMERICHOST) != 0) { - log_print("udp_decode_ids: getnameinfo () failed for 'dst'"); - strlcpy(iddst, "", 256); - } - - snprintf(result, sizeof result, "src: %s dst: %s", idsrc, iddst); - return result; -} - -#if 0 -/* - * Take a string containing an ext representation of port and return a - * binary port number in host byte order. Return zero if anything goes wrong. - * XXX Currently unused. - */ -static in_port_t -udp_decode_port(char *port_str) -{ - char *port_str_end; - long port_long; - struct servent *service; - - port_long = ntohl(strtol(port_str, &port_str_end, 0)); - if (port_str == port_str_end) { - service = getservbyname(port_str, "udp"); - if (!service) { - log_print("udp_decode_port: service \"%s\" unknown", - port_str); - return 0; - } - return ntohs(service->s_port); - } else if (port_long < 1 || port_long > 65535) { - log_print("udp_decode_port: port %ld out of range", port_long); - return 0; - } - return port_long; -} -#endif -- cgit v1.2.3