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root/svn/ircd-hybrid/trunk/src/s_bsd.c

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ircd-hybrid-7.2/src/s_bsd.c (file contents), Revision 992 by michael, Mon Aug 17 19:19:16 2009 UTC vs.
ircd-hybrid/trunk/src/s_bsd.c (file contents), Revision 2426 by michael, Tue Jul 30 17:20:47 2013 UTC

#	Line 23 | Line 23
23		*/
24
25		#include "stdinc.h"
26	–	#ifndef _WIN32
26		#include <netinet/in_systm.h>
27		#include <netinet/ip.h>
28		#include <netinet/tcp.h>
29	<	#endif
29	>	#include "list.h"
30		#include "fdlist.h"
31		#include "s_bsd.h"
32		#include "client.h"
34	–	#include "common.h"
33		#include "dbuf.h"
34		#include "event.h"
35		#include "irc_string.h"
38	–	#include "irc_getnameinfo.h"
39	–	#include "irc_getaddrinfo.h"
36		#include "ircd.h"
41	–	#include "list.h"
37		#include "listener.h"
38		#include "numeric.h"
39		#include "packet.h"
40		#include "irc_res.h"
46	–	#include "inet_misc.h"
41		#include "restart.h"
42		#include "s_auth.h"
43	<	#include "s_conf.h"
44	<	#include "s_log.h"
43	>	#include "conf.h"
44	>	#include "log.h"
45		#include "s_serv.h"
46		#include "send.h"
47		#include "memory.h"
#	Line 60 | Line 54 | static const char *comm_err_str[] = { "C
54
55		struct Callback *setup_socket_cb = NULL;
56
57	<	static void comm_connect_callback(fde_t *fd, int status);
57	>	static void comm_connect_callback(fde_t *, int);
58		static PF comm_connect_timeout;
59		static void comm_connect_dns_callback(void *, const struct irc_ssaddr *, const char *);
60		static PF comm_connect_tryconnect;
#	Line 80 | Line 74 | check_can_use_v6(void)
74		else
75		{
76		ServerInfo.can_use_v6 = 1;
83	–	#ifdef _WIN32
84	–	closesocket(v6);
85	–	#else
77		close(v6);
87	–	#endif
78		}
79		#else
80		ServerInfo.can_use_v6 = 0;
#	Line 100 | Line 90 | check_can_use_v6(void)
90		int
91		get_sockerr(int fd)
92		{
103	–	#ifndef _WIN32
93		int errtmp = errno;
105	–	#else
106	–	int errtmp = WSAGetLastError();
107	–	#endif
94		#ifdef SO_ERROR
95		int err = 0;
96		socklen_t len = sizeof(err);
#	Line 143 | Line 129 | report_error(int level, const char* text
129		{
130		who = (who) ? who : "";
131
132	<	sendto_realops_flags(UMODE_DEBUG, level, text, who, strerror(error));
133	<	log_oper_action(LOG_IOERR_TYPE, NULL, "%s %s %s\n", who, text, strerror(error));
134	<	ilog(L_ERROR, text, who, strerror(error));
132	>	sendto_realops_flags(UMODE_DEBUG, level, SEND_NOTICE,
133	>	text, who, strerror(error));
134	>	ilog(LOG_TYPE_IRCD, text, who, strerror(error));
135		}
136
137		/*
#	Line 166 | Line 152 | setup_socket(va_list args)
152		setsockopt(fd, IPPROTO_IP, IP_TOS, &opt, sizeof(opt));
153		#endif
154
169	–	#ifndef _WIN32
155		fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK);
171	–	#endif
156
157		return NULL;
158		}
#	Line 193 | Line 177 | init_comm(void)
177		void
178		close_connection(struct Client *client_p)
179		{
180	<	struct ConfItem *conf;
197	<	struct AccessItem *aconf;
198	<	struct ClassItem *aclass;
180	>	dlink_node *ptr = NULL;
181
182	<	assert(NULL != client_p);
182	>	assert(client_p);
183
184		if (!IsDead(client_p))
185		{
#	Line 210 | Line 192 | close_connection(struct Client *client_p
192		send_queued_write(client_p);
193		}
194
195	<	if (IsServer(client_p))
195	>	if (IsClient(client_p))
196	>	{
197	>	++ServerStats.is_cl;
198	>	ServerStats.is_cbs += client_p->localClient->send.bytes;
199	>	ServerStats.is_cbr += client_p->localClient->recv.bytes;
200	>	ServerStats.is_cti += CurrentTime - client_p->localClient->firsttime;
201	>	}
202	>	else if (IsServer(client_p))
203		{
204		++ServerStats.is_sv;
205		ServerStats.is_sbs += client_p->localClient->send.bytes;
206		ServerStats.is_sbr += client_p->localClient->recv.bytes;
207	<	ServerStats.is_sti += CurrentTime - client_p->firsttime;
207	>	ServerStats.is_sti += CurrentTime - client_p->localClient->firsttime;
208
209	<	/* XXX Does this even make any sense at all anymore?
221	<	* scheduling a 'quick' reconnect could cause a pile of
222	<	* nick collides under TSora protocol... -db
223	<	*/
224	<	/*
225	<	* If the connection has been up for a long amount of time, schedule
226	<	* a 'quick' reconnect, else reset the next-connect cycle.
227	<	*/
228	<	if ((conf = find_conf_exact(SERVER_TYPE,
229	<	client_p->name, client_p->username,
230	<	client_p->host)))
209	>	DLINK_FOREACH(ptr, server_items.head)
210		{
211	+	struct MaskItem *conf = ptr->data;
212	+
213	+	if (irccmp(conf->name, client_p->name))
214	+	continue;
215	+
216		/*
217	<	* Reschedule a faster reconnect, if this was a automatically
218	<	* connected configuration entry. (Note that if we have had
235	<	* a rehash in between, the status has been changed to
236	<	* CONF_ILLEGAL). But only do this if it was a "good" link.
217	>	* Reset next-connect cycle of all connect{} blocks that match
218	>	* this servername.
219		*/
220	<	aconf = (struct AccessItem *)map_to_conf(conf);
239	<	aclass = (struct ClassItem *)map_to_conf(aconf->class_ptr);
240	<	aconf->hold = time(NULL);
241	<	aconf->hold += (aconf->hold - client_p->since > HANGONGOODLINK) ?
242	<	HANGONRETRYDELAY : ConFreq(aclass);
243	<	if (nextconnect > aconf->hold)
244	<	nextconnect = aconf->hold;
220	>	conf->until = CurrentTime + conf->class->con_freq;
221		}
222		}
247	–	else if (IsClient(client_p))
248	–	{
249	–	++ServerStats.is_cl;
250	–	ServerStats.is_cbs += client_p->localClient->send.bytes;
251	–	ServerStats.is_cbr += client_p->localClient->recv.bytes;
252	–	ServerStats.is_cti += CurrentTime - client_p->firsttime;
253	–	}
223		else
224		++ServerStats.is_ni;
225
#	Line 266 | Line 235 | close_connection(struct Client *client_p
235		if (client_p->localClient->fd.flags.open)
236		fd_close(&client_p->localClient->fd);
237
269	–	if (HasServlink(client_p))
270	–	{
271	–	if (client_p->localClient->ctrlfd.flags.open)
272	–	fd_close(&client_p->localClient->ctrlfd);
273	–	}
274	–
238		dbuf_clear(&client_p->localClient->buf_sendq);
239		dbuf_clear(&client_p->localClient->buf_recvq);
240
241		MyFree(client_p->localClient->passwd);
242	<	detach_conf(client_p, CONF_TYPE);
242	>	detach_conf(client_p, CONF_CLIENT|CONF_OPER|CONF_SERVER);
243		client_p->from = NULL; /* ...this should catch them! >:) --msa */
244		}
245
#	Line 288 | Line 251 | close_connection(struct Client *client_p
251		static void
252		ssl_handshake(int fd, struct Client *client_p)
253		{
254	+	X509 *cert = NULL;
255		int ret = SSL_accept(client_p->localClient->fd.ssl);
256
257	+	if ((cert = SSL_get_peer_certificate(client_p->localClient->fd.ssl)))
258	+	{
259	+	int res = SSL_get_verify_result(client_p->localClient->fd.ssl);
260	+	char buf[EVP_MAX_MD_SIZE * 2 + 1] = { '\0' };
261	+	unsigned char md[EVP_MAX_MD_SIZE] = { '\0' };
262	+
263	+	if (res == X509_V_OK || res == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN ||
264	+	res == X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE ||
265	+	res == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
266	+	{
267	+	unsigned int i = 0, n = 0;
268	+
269	+	if (X509_digest(cert, EVP_sha256(), md, &n))
270	+	{
271	+	for (; i < n; ++i)
272	+	snprintf(buf + 2 * i, 3, "%02X", md[i]);
273	+	client_p->certfp = xstrdup(buf);
274	+	}
275	+	}
276	+	else
277	+	ilog(LOG_TYPE_IRCD, "Client %s!%s@%s gave bad SSL client certificate: %d",
278	+	client_p->name, client_p->username, client_p->host, res);
279	+	X509_free(cert);
280	+	}
281	+
282		if (ret <= 0)
283	+	{
284		switch (SSL_get_error(client_p->localClient->fd.ssl, ret))
285		{
286		case SSL_ERROR_WANT_WRITE:
#	Line 307 | Line 297 | ssl_handshake(int fd, struct Client *cli
297		exit_client(client_p, client_p, "Error during SSL handshake");
298		return;
299		}
300	+	}
301
302	<	execute_callback(auth_cb, client_p);
302	>	start_auth(client_p);
303		}
304		#endif
305
#	Line 322 | Line 313 | ssl_handshake(int fd, struct Client *cli
313		void
314		add_connection(struct Listener *listener, struct irc_ssaddr *irn, int fd)
315		{
316	<	struct Client *new_client;
326	<
327	<	assert(NULL != listener);
328	<
329	<	new_client = make_client(NULL);
316	>	struct Client *new_client = make_client(NULL);
317
318		fd_open(&new_client->localClient->fd, fd, 1,
319		(listener->flags & LISTENER_SSL) ?
320		"Incoming SSL connection" : "Incoming connection");
321
322	<	/*
322	>	/*
323		* copy address to 'sockhost' as a string, copy it to host too
324		* so we have something valid to put into error messages...
325		*/
326		memcpy(&new_client->localClient->ip, irn, sizeof(struct irc_ssaddr));
327
328	<	irc_getnameinfo((struct sockaddr*)&new_client->localClient->ip,
329	<	new_client->localClient->ip.ss_len,  new_client->sockhost,
330	<	HOSTIPLEN, NULL, 0, NI_NUMERICHOST);
328	>	getnameinfo((struct sockaddr *)&new_client->localClient->ip,
329	>	new_client->localClient->ip.ss_len, new_client->sockhost,
330	>	sizeof(new_client->sockhost), NULL, 0, NI_NUMERICHOST);
331		new_client->localClient->aftype = new_client->localClient->ip.ss.ss_family;
345	–	#ifdef IPV6
346	–	if (new_client->sockhost[0] == ':')
347	–	strlcat(new_client->host, "0", HOSTLEN+1);
332
333	<	if (new_client->localClient->aftype == AF_INET6 &&
334	<	ConfigFileEntry.dot_in_ip6_addr == 1)
333	>	#ifdef HAVE_LIBGEOIP
334	>	/* XXX IPV6 SUPPORT XXX */
335	>	if (irn->ss.ss_family == AF_INET && geoip_ctx)
336		{
337	<	strlcat(new_client->host, new_client->sockhost,HOSTLEN+1);
338	<	strlcat(new_client->host, ".", HOSTLEN+1);
337	>	const struct sockaddr_in *v4 = (const struct sockaddr_in *)&new_client->localClient->ip;
338	>	new_client->localClient->country_id = GeoIP_id_by_ipnum(geoip_ctx, (unsigned long)ntohl(v4->sin_addr.s_addr));
339		}
355	–	else
340		#endif
341	<	strlcat(new_client->host, new_client->sockhost,HOSTLEN+1);
341	>
342	>	if (new_client->sockhost[0] == ':' && new_client->sockhost[1] == ':')
343	>	{
344	>	strlcpy(new_client->host, "0", sizeof(new_client->host));
345	>	strlcpy(new_client->host+1, new_client->sockhost, sizeof(new_client->host)-1);
346	>	memmove(new_client->sockhost+1, new_client->sockhost, sizeof(new_client->sockhost)-1);
347	>	new_client->sockhost[0] = '0';
348	>	}
349	>	else
350	>	strlcpy(new_client->host, new_client->sockhost, sizeof(new_client->host));
351
352		new_client->localClient->listener = listener;
353		++listener->ref_count;
#	Line 364 | Line 357 | add_connection(struct Listener *listener
357		{
358		if ((new_client->localClient->fd.ssl = SSL_new(ServerInfo.server_ctx)) == NULL)
359		{
360	<	ilog(L_CRIT, "SSL_new() ERROR! -- %s",
360	>	ilog(LOG_TYPE_IRCD, "SSL_new() ERROR! -- %s",
361		ERR_error_string(ERR_get_error(), NULL));
362
363		SetDead(new_client);
#	Line 372 | Line 365 | add_connection(struct Listener *listener
365		return;
366		}
367
368	+	AddFlag(new_client, FLAGS_SSL);
369		SSL_set_fd(new_client->localClient->fd.ssl, fd);
370		ssl_handshake(0, new_client);
371		}
372		else
373		#endif
374	<	execute_callback(auth_cb, new_client);
374	>	start_auth(new_client);
375		}
376
377		/*
#	Line 541 | Line 535 | comm_connect_tcp(fde_t *fd, const char *
535
536		snprintf(portname, sizeof(portname), "%d", port);
537
538	<	if (irc_getaddrinfo(host, portname, &hints, &res))
538	>	if (getaddrinfo(host, portname, &hints, &res))
539		{
540		/* Send the DNS request, for the next level */
541		if (aftype == AF_INET6)
#	Line 557 | Line 551 | comm_connect_tcp(fde_t *fd, const char *
551		memcpy(&fd->connect.hostaddr, res->ai_addr, res->ai_addrlen);
552		fd->connect.hostaddr.ss_len = res->ai_addrlen;
553		fd->connect.hostaddr.ss.ss_family = res->ai_family;
554	<	irc_freeaddrinfo(res);
554	>	freeaddrinfo(res);
555		comm_settimeout(fd, timeout*1000, comm_connect_timeout, NULL);
556		comm_connect_tryconnect(fd, NULL);
557		}
#	Line 658 | Line 652 | comm_connect_tryconnect(fde_t *fd, void
652		/* Error? */
653		if (retval < 0)
654		{
661	–	#ifdef _WIN32
662	–	errno = WSAGetLastError();
663	–	#endif
655		/*
656		* If we get EISCONN, then we've already connect()ed the socket,
657		* which is a good thing.
#	Line 719 | Line 710 | comm_open(fde_t *F, int family, int sock
710		*/
711		fd = socket(family, sock_type, proto);
712		if (fd < 0)
722	–	{
723	–	#ifdef _WIN32
724	–	errno = WSAGetLastError();
725	–	#endif
713		return -1; /* errno will be passed through, yay.. */
727	–	}
714
715		execute_callback(setup_socket_cb, fd);
716
#	Line 757 | Line 743 | comm_accept(struct Listener *lptr, struc
743		* reserved fd limit, but we can deal with that when comm_open()
744		* also does it. XXX -- adrian
745		*/
746	<	newfd = accept(lptr->fd.fd, (struct sockaddr *)pn, (socklen_t *)&addrlen);
746	>	newfd = accept(lptr->fd.fd, (struct sockaddr *)pn, &addrlen);
747		if (newfd < 0)
762	–	{
763	–	#ifdef _WIN32
764	–	errno = WSAGetLastError();
765	–	#endif
748		return -1;
767	–	}
749
750		#ifdef IPV6
751		remove_ipv6_mapping(pn);
#	Line 780 | Line 761 | comm_accept(struct Listener *lptr, struc
761
762		/*
763		* remove_ipv6_mapping() - Removes IPv4-In-IPv6 mapping from an address
764	<	* This function should really inspect the struct itself rather than relying
784	<	* on inet_pton and inet_ntop.  OSes with IPv6 mapping listening on both
764	>	* OSes with IPv6 mapping listening on both
765		* AF_INET and AF_INET6 map AF_INET connections inside AF_INET6 structures
766		*
767		*/
#	Line 791 | Line 771 | remove_ipv6_mapping(struct irc_ssaddr *a
771		{
772		if (addr->ss.ss_family == AF_INET6)
773		{
774	<	struct sockaddr_in6 *v6;
795	<
796	<	v6 = (struct sockaddr_in6*)addr;
797	<	if (IN6_IS_ADDR_V4MAPPED(&v6->sin6_addr))
774	>	if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)addr)->sin6_addr))
775		{
776	<	char v4ip[HOSTIPLEN];
777	<	struct sockaddr_in *v4 = (struct sockaddr_in*)addr;
778	<	inetntop(AF_INET6, &v6->sin6_addr, v4ip, HOSTIPLEN);
779	<	inet_pton(AF_INET, v4ip, &v4->sin_addr);
776	>	struct sockaddr_in6 v6;
777	>	struct sockaddr_in *v4 = (struct sockaddr_in *)addr;
778	>
779	>	memcpy(&v6, addr, sizeof(v6));
780	>	memset(v4, 0, sizeof(struct sockaddr_in));
781	>	memcpy(&v4->sin_addr, &v6.sin6_addr.s6_addr[12], sizeof(v4->sin_addr));
782	>
783		addr->ss.ss_family = AF_INET;
784		addr->ss_len = sizeof(struct sockaddr_in);
785		}

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