[solanum.git] / modules / m_sasl.c

/* modules/m_sasl.c
 *   Copyright (C) 2006 Michael Tharp <gxti@partiallystapled.com>
 *   Copyright (C) 2006 charybdis development team
 *
 * 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.
 * 3.The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * 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.
 */

#include "stdinc.h"

#include "client.h"
#include "hash.h"
#include "send.h"
#include "msg.h"
#include "modules.h"
#include "numeric.h"
#include "s_serv.h"
#include "s_stats.h"
#include "string.h"
#include "s_newconf.h"
#include "s_conf.h"

static const char sasl_desc[] = "Provides SASL authentication support";

static void m_authenticate(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void me_sasl(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void me_mechlist(struct MsgBuf *, struct Client *, struct Client *, int, const char **);

static void abort_sasl(struct Client *);
static void abort_sasl_exit(hook_data_client_exit *);

static void advertise_sasl(struct Client *);
static void advertise_sasl_exit(hook_data_client_exit *);

static unsigned int CLICAP_SASL = 0;
static char mechlist_buf[BUFSIZE];

struct Message authenticate_msgtab = {
	"AUTHENTICATE", 0, 0, 0, 0,
	{{m_authenticate, 2}, {m_authenticate, 2}, mg_ignore, mg_ignore, mg_ignore, {m_authenticate, 2}}
};
struct Message sasl_msgtab = {
	"SASL", 0, 0, 0, 0,
	{mg_ignore, mg_ignore, mg_ignore, mg_ignore, {me_sasl, 5}, mg_ignore}
};
struct Message mechlist_msgtab = {
	"MECHLIST", 0, 0, 0, 0,
	{mg_ignore, mg_ignore, mg_ignore, mg_ignore, {me_mechlist, 2}, mg_ignore}
};

mapi_clist_av1 sasl_clist[] = {
	&authenticate_msgtab, &sasl_msgtab, &mechlist_msgtab, NULL
};
mapi_hfn_list_av1 sasl_hfnlist[] = {
	{ "new_local_user",	(hookfn) abort_sasl },
	{ "client_exit",	(hookfn) abort_sasl_exit },
	{ "new_remote_user",	(hookfn) advertise_sasl },
	{ "client_exit",	(hookfn) advertise_sasl_exit },
	{ NULL, NULL }
};

static bool
sasl_visible(struct Client *client_p)
{
	struct Client *agent_p = NULL;

	if (ConfigFileEntry.sasl_service)
		agent_p = find_named_client(ConfigFileEntry.sasl_service);

	return agent_p != NULL && IsService(agent_p);
}

static const char *
sasl_data(struct Client *client_p)
{
	return *mechlist_buf != 0 ? mechlist_buf : NULL;
}

static struct ClientCapability capdata_sasl = {
	.visible = sasl_visible,
	.data = sasl_data,
	.flags = CLICAP_FLAGS_STICKY,
};

static int
_modinit(void)
{
	memset(mechlist_buf, 0, sizeof mechlist_buf);
	CLICAP_SASL = capability_put(cli_capindex, "sasl", &capdata_sasl);
	return 0;
}

static void
_moddeinit(void)
{
	capability_orphan(cli_capindex, "sasl");
}

DECLARE_MODULE_AV2(sasl, _modinit, _moddeinit, sasl_clist, NULL, sasl_hfnlist, NULL, NULL, sasl_desc);

static void
m_authenticate(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p,
	int parc, const char *parv[])
{
	struct Client *agent_p = NULL;
	struct Client *saslserv_p = NULL;

	/* They really should use CAP for their own sake. */
	if(!IsCapable(source_p, CLICAP_SASL))
		return;

	if (strlen(client_p->id) == 3)
	{
		exit_client(client_p, client_p, client_p, "Mixing client and server protocol");
		return;
	}

	saslserv_p = find_named_client(ConfigFileEntry.sasl_service);
	if (saslserv_p == NULL || !IsService(saslserv_p))
	{
		sendto_one(source_p, form_str(ERR_SASLABORTED), me.name, EmptyString(source_p->name) ? "*" : source_p->name);
		return;
	}

	if(source_p->localClient->sasl_complete)
	{
		*source_p->localClient->sasl_agent = '\0';
		source_p->localClient->sasl_complete = 0;
	}

	if(strlen(parv[1]) > 400)
	{
		sendto_one(source_p, form_str(ERR_SASLTOOLONG), me.name, EmptyString(source_p->name) ? "*" : source_p->name);
		return;
	}

	if(!*source_p->id)
	{
		/* Allocate a UID. */
		strcpy(source_p->id, generate_uid());
		add_to_id_hash(source_p->id, source_p);
	}

	if(*source_p->localClient->sasl_agent)
		agent_p = find_id(source_p->localClient->sasl_agent);

	if(agent_p == NULL)
	{
		sendto_one(saslserv_p, ":%s ENCAP %s SASL %s %s H %s %s",
					me.id, saslserv_p->servptr->name, source_p->id, saslserv_p->id,
					source_p->host, source_p->sockhost);

		if (source_p->certfp != NULL)
			sendto_one(saslserv_p, ":%s ENCAP %s SASL %s %s S %s %s",
						me.id, saslserv_p->servptr->name, source_p->id, saslserv_p->id,
						parv[1], source_p->certfp);
		else
			sendto_one(saslserv_p, ":%s ENCAP %s SASL %s %s S %s",
						me.id, saslserv_p->servptr->name, source_p->id, saslserv_p->id,
						parv[1]);

		rb_strlcpy(source_p->localClient->sasl_agent, saslserv_p->id, IDLEN);
	}
	else
		sendto_one(agent_p, ":%s ENCAP %s SASL %s %s C %s",
				me.id, agent_p->servptr->name, source_p->id, agent_p->id,
				parv[1]);
	source_p->localClient->sasl_out++;
}

static void
me_sasl(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p,
	int parc, const char *parv[])
{
	struct Client *target_p, *agent_p;

	/* Let propagate if not addressed to us, or if broadcast.
	 * Only SASL agents can answer global requests.
	 */
	if(strncmp(parv[2], me.id, 3))
		return;

	if((target_p = find_id(parv[2])) == NULL)
		return;

	if((agent_p = find_id(parv[1])) == NULL)
		return;

	if(source_p != agent_p->servptr) /* WTF?! */
		return;

	/* We only accept messages from SASL agents; these must have umode +S
	 * (so the server must be listed in a service{} block).
	 */
	if(!IsService(agent_p))
		return;

	/* Reject if someone has already answered. */
	if(*target_p->localClient->sasl_agent && strncmp(parv[1], target_p->localClient->sasl_agent, IDLEN))
		return;
	else if(!*target_p->localClient->sasl_agent)
		rb_strlcpy(target_p->localClient->sasl_agent, parv[1], IDLEN);

	if(*parv[3] == 'C')
		sendto_one(target_p, "AUTHENTICATE %s", parv[4]);
	else if(*parv[3] == 'D')
	{
		if(*parv[4] == 'F')
			sendto_one(target_p, form_str(ERR_SASLFAIL), me.name, EmptyString(target_p->name) ? "*" : target_p->name);
		else if(*parv[4] == 'S') {
			sendto_one(target_p, form_str(RPL_SASLSUCCESS), me.name, EmptyString(target_p->name) ? "*" : target_p->name);
			target_p->localClient->sasl_complete = 1;
			ServerStats.is_ssuc++;
		}
		*target_p->localClient->sasl_agent = '\0'; /* Blank the stored agent so someone else can answer */
	}
	else if(*parv[3] == 'M')
		sendto_one(target_p, form_str(RPL_SASLMECHS), me.name, EmptyString(target_p->name) ? "*" : target_p->name, parv[4]);
}

static void
me_mechlist(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p,
	    int parc, const char *parv[])
{
	rb_strlcpy(mechlist_buf, parv[1], sizeof mechlist_buf);
}

/* If the client never finished authenticating but is
 * registering anyway, abort the exchange.
 */
static void
abort_sasl(struct Client *data)
{
	if(data->localClient->sasl_out == 0 || data->localClient->sasl_complete)
		return;

	data->localClient->sasl_out = data->localClient->sasl_complete = 0;
	ServerStats.is_sbad++;

	if(!IsClosing(data))
		sendto_one(data, form_str(ERR_SASLABORTED), me.name, EmptyString(data->name) ? "*" : data->name);

	if(*data->localClient->sasl_agent)
	{
		struct Client *agent_p = find_id(data->localClient->sasl_agent);
		if(agent_p)
		{
			sendto_one(agent_p, ":%s ENCAP %s SASL %s %s D A", me.id, agent_p->servptr->name,
					data->id, agent_p->id);
			return;
		}
	}

	sendto_server(NULL, NULL, CAP_TS6|CAP_ENCAP, NOCAPS, ":%s ENCAP * SASL %s * D A", me.id,
			data->id);
}

static void
abort_sasl_exit(hook_data_client_exit *data)
{
	if (data->target->localClient)
		abort_sasl(data->target);
}

static void
advertise_sasl(struct Client *client_p)
{
	if (!ConfigFileEntry.sasl_service)
		return;

	if (irccmp(client_p->name, ConfigFileEntry.sasl_service))
		return;

	sendto_local_clients_with_capability(CLICAP_CAP_NOTIFY, ":%s CAP * NEW :sasl", me.name);
}

static void
advertise_sasl_exit(hook_data_client_exit *data)
{
	if (!ConfigFileEntry.sasl_service)
		return;

	if (irccmp(data->target->name, ConfigFileEntry.sasl_service))
		return;

	sendto_local_clients_with_capability(CLICAP_CAP_NOTIFY, ":%s CAP * DEL :sasl", me.name);
}
Commit	Line	Data
212380e3 AC	1	/* modules/m_sasl.c
212380e3 AC	2	* Copyright (C) 2006 Michael Tharp <gxti@partiallystapled.com>
f62f94b0	3	* Copyright (C) 2006 charybdis development team
212380e3 AC	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions are
	7	* met:
	8	*
	9	* 1.Redistributions of source code must retain the above copyright notice,
	10	* this list of conditions and the following disclaimer.
	11	* 2.Redistributions in binary form must reproduce the above copyright
	12	* notice, this list of conditions and the following disclaimer in the
	13	* documentation and/or other materials provided with the distribution.
	14	* 3.The name of the author may not be used to endorse or promote products
	15	* derived from this software without specific prior written permission.
	16	*
	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	19	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	20	* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
	21	* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	22	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	23	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	24	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	25	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	26	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	27	* POSSIBILITY OF SUCH DAMAGE.
212380e3 AC	28	*/
	29
	30	#include "stdinc.h"
	31
	32	#include "client.h"
	33	#include "hash.h"
	34	#include "send.h"
	35	#include "msg.h"
	36	#include "modules.h"
	37	#include "numeric.h"
	38	#include "s_serv.h"
	39	#include "s_stats.h"
	40	#include "string.h"
7d33cce8 MT	41	#include "s_newconf.h"
7d33cce8 MT	42	#include "s_conf.h"
212380e3	43
eeabf33a EM	44	static const char sasl_desc[] = "Provides SASL authentication support";
eeabf33a EM	45
3c7d6fcc EM	46	static void m_authenticate(struct MsgBuf , struct Client , struct Client , int, const char *);
	47	static void me_sasl(struct MsgBuf , struct Client , struct Client , int, const char *);
	48	static void me_mechlist(struct MsgBuf , struct Client , struct Client , int, const char *);
212380e3 AC	49
	50	static void abort_sasl(struct Client *);
	51	static void abort_sasl_exit(hook_data_client_exit *);
	52
12565204 AC	53	static void advertise_sasl(struct Client *);
	54	static void advertise_sasl_exit(hook_data_client_exit *);
	55
da3e5fcb AC	56	static unsigned int CLICAP_SASL = 0;
da3e5fcb AC	57	static char mechlist_buf[BUFSIZE];
193d4db3	58
212380e3	59	struct Message authenticate_msgtab = {
7baa37a9	60	"AUTHENTICATE", 0, 0, 0, 0,
ef3ab8e3	61	{{m_authenticate, 2}, {m_authenticate, 2}, mg_ignore, mg_ignore, mg_ignore, {m_authenticate, 2}}
212380e3 AC	62	};
212380e3 AC	63	struct Message sasl_msgtab = {
7baa37a9	64	"SASL", 0, 0, 0, 0,
212380e3 AC	65	{mg_ignore, mg_ignore, mg_ignore, mg_ignore, {me_sasl, 5}, mg_ignore}
212380e3 AC	66	};
da3e5fcb AC	67	struct Message mechlist_msgtab = {
	68	"MECHLIST", 0, 0, 0, 0,
	69	{mg_ignore, mg_ignore, mg_ignore, mg_ignore, {me_mechlist, 2}, mg_ignore}
	70	};
212380e3	71
55abcbb2	72	mapi_clist_av1 sasl_clist[] = {
da3e5fcb	73	&authenticate_msgtab, &sasl_msgtab, &mechlist_msgtab, NULL
212380e3 AC	74	};
	75	mapi_hfn_list_av1 sasl_hfnlist[] = {
	76	{ "new_local_user", (hookfn) abort_sasl },
	77	{ "client_exit", (hookfn) abort_sasl_exit },
12565204 AC	78	{ "new_remote_user", (hookfn) advertise_sasl },
12565204 AC	79	{ "client_exit", (hookfn) advertise_sasl_exit },
212380e3 AC	80	{ NULL, NULL }
	81	};
	82
3c7d6fcc	83	static bool
38ffccf8	84	sasl_visible(struct Client *client_p)
193d4db3 AC	85	{
	86	struct Client *agent_p = NULL;
	87
	88	if (ConfigFileEntry.sasl_service)
	89	agent_p = find_named_client(ConfigFileEntry.sasl_service);
	90
	91	return agent_p != NULL && IsService(agent_p);
	92	}
	93
da3e5fcb	94	static const char *
38ffccf8	95	sasl_data(struct Client *client_p)
da3e5fcb AC	96	{
	97	return *mechlist_buf != 0 ? mechlist_buf : NULL;
	98	}
	99
193d4db3 AC	100	static struct ClientCapability capdata_sasl = {
193d4db3 AC	101	.visible = sasl_visible,
da3e5fcb	102	.data = sasl_data,
193d4db3 AC	103	.flags = CLICAP_FLAGS_STICKY,
	104	};
	105
	106	static int
	107	_modinit(void)
	108	{
da3e5fcb	109	memset(mechlist_buf, 0, sizeof mechlist_buf);
193d4db3 AC	110	CLICAP_SASL = capability_put(cli_capindex, "sasl", &capdata_sasl);
	111	return 0;
	112	}
	113
	114	static void
	115	_moddeinit(void)
	116	{
	117	capability_orphan(cli_capindex, "sasl");
	118	}
	119
3abc337f	120	DECLARE_MODULE_AV2(sasl, _modinit, _moddeinit, sasl_clist, NULL, sasl_hfnlist, NULL, NULL, sasl_desc);
212380e3	121
3c7d6fcc	122	static void
428ca87b	123	m_authenticate(struct MsgBuf msgbuf_p, struct Client client_p, struct Client *source_p,
212380e3 AC	124	int parc, const char *parv[])
	125	{
	126	struct Client *agent_p = NULL;
7d33cce8	127	struct Client *saslserv_p = NULL;
212380e3 AC	128
	129	/* They really should use CAP for their own sake. */
	130	if(!IsCapable(source_p, CLICAP_SASL))
3c7d6fcc	131	return;
212380e3	132
1b19fe8b JT	133	if (strlen(client_p->id) == 3)
	134	{
	135	exit_client(client_p, client_p, client_p, "Mixing client and server protocol");
3c7d6fcc	136	return;
1b19fe8b JT	137	}
1b19fe8b JT	138
7d33cce8 MT	139	saslserv_p = find_named_client(ConfigFileEntry.sasl_service);
	140	if (saslserv_p == NULL \|\| !IsService(saslserv_p))
	141	{
	142	sendto_one(source_p, form_str(ERR_SASLABORTED), me.name, EmptyString(source_p->name) ? "*" : source_p->name);
3c7d6fcc	143	return;
7d33cce8 MT	144	}
7d33cce8 MT	145
c6bc97fd	146	if(source_p->localClient->sasl_complete)
212380e3	147	{
51535fcb	148	*source_p->localClient->sasl_agent = '\0';
c6bc97fd	149	source_p->localClient->sasl_complete = 0;
212380e3 AC	150	}
	151
	152	if(strlen(parv[1]) > 400)
	153	{
	154	sendto_one(source_p, form_str(ERR_SASLTOOLONG), me.name, EmptyString(source_p->name) ? "*" : source_p->name);
3c7d6fcc	155	return;
212380e3 AC	156	}
	157
	158	if(!*source_p->id)
	159	{
	160	/* Allocate a UID. */
	161	strcpy(source_p->id, generate_uid());
	162	add_to_id_hash(source_p->id, source_p);
	163	}
	164
c6bc97fd AC	165	if(*source_p->localClient->sasl_agent)
c6bc97fd AC	166	agent_p = find_id(source_p->localClient->sasl_agent);
212380e3 AC	167
212380e3 AC	168	if(agent_p == NULL)
572488e0	169	{
1cae2411 MM	170	sendto_one(saslserv_p, ":%s ENCAP %s SASL %s %s H %s %s",
	171	me.id, saslserv_p->servptr->name, source_p->id, saslserv_p->id,
	172	source_p->host, source_p->sockhost);
a3fa9d81	173
802710b5	174	if (source_p->certfp != NULL)
6fb9f214 MM	175	sendto_one(saslserv_p, ":%s ENCAP %s SASL %s %s S %s %s",
	176	me.id, saslserv_p->servptr->name, source_p->id, saslserv_p->id,
	177	parv[1], source_p->certfp);
572488e0	178	else
6fb9f214 MM	179	sendto_one(saslserv_p, ":%s ENCAP %s SASL %s %s S %s",
	180	me.id, saslserv_p->servptr->name, source_p->id, saslserv_p->id,
	181	parv[1]);
7d33cce8	182
c6bc97fd	183	rb_strlcpy(source_p->localClient->sasl_agent, saslserv_p->id, IDLEN);
572488e0	184	}
212380e3	185	else
6fb9f214 MM	186	sendto_one(agent_p, ":%s ENCAP %s SASL %s %s C %s",
6fb9f214 MM	187	me.id, agent_p->servptr->name, source_p->id, agent_p->id,
7d33cce8	188	parv[1]);
c6bc97fd	189	source_p->localClient->sasl_out++;
212380e3 AC	190	}
212380e3 AC	191
3c7d6fcc	192	static void
428ca87b	193	me_sasl(struct MsgBuf msgbuf_p, struct Client client_p, struct Client *source_p,
212380e3 AC	194	int parc, const char *parv[])
	195	{
	196	struct Client target_p, agent_p;
	197
	198	/* Let propagate if not addressed to us, or if broadcast.
	199	* Only SASL agents can answer global requests.
	200	*/
	201	if(strncmp(parv[2], me.id, 3))
3c7d6fcc	202	return;
212380e3 AC	203
212380e3 AC	204	if((target_p = find_id(parv[2])) == NULL)
3c7d6fcc	205	return;
212380e3	206
212380e3	207	if((agent_p = find_id(parv[1])) == NULL)
3c7d6fcc	208	return;
212380e3 AC	209
212380e3 AC	210	if(source_p != agent_p->servptr) /* WTF?! */
3c7d6fcc	211	return;
212380e3 AC	212
	213	/* We only accept messages from SASL agents; these must have umode +S
	214	* (so the server must be listed in a service{} block).
	215	*/
	216	if(!IsService(agent_p))
3c7d6fcc	217	return;
212380e3 AC	218
212380e3 AC	219	/* Reject if someone has already answered. */
c6bc97fd	220	if(*target_p->localClient->sasl_agent && strncmp(parv[1], target_p->localClient->sasl_agent, IDLEN))
3c7d6fcc	221	return;
c6bc97fd AC	222	else if(!*target_p->localClient->sasl_agent)
c6bc97fd AC	223	rb_strlcpy(target_p->localClient->sasl_agent, parv[1], IDLEN);
212380e3	224
f62f94b0	225	if(*parv[3] == 'C')
212380e3 AC	226	sendto_one(target_p, "AUTHENTICATE %s", parv[4]);
	227	else if(*parv[3] == 'D')
	228	{
	229	if(*parv[4] == 'F')
	230	sendto_one(target_p, form_str(ERR_SASLFAIL), me.name, EmptyString(target_p->name) ? "*" : target_p->name);
	231	else if(*parv[4] == 'S') {
	232	sendto_one(target_p, form_str(RPL_SASLSUCCESS), me.name, EmptyString(target_p->name) ? "*" : target_p->name);
c6bc97fd	233	target_p->localClient->sasl_complete = 1;
47adde3d	234	ServerStats.is_ssuc++;
212380e3	235	}
c6bc97fd	236	target_p->localClient->sasl_agent = '\0'; / Blank the stored agent so someone else can answer */
212380e3	237	}
dbd8ca2b MM	238	else if(*parv[3] == 'M')
dbd8ca2b MM	239	sendto_one(target_p, form_str(RPL_SASLMECHS), me.name, EmptyString(target_p->name) ? "*" : target_p->name, parv[4]);
212380e3 AC	240	}
212380e3 AC	241
3c7d6fcc	242	static void
da3e5fcb AC	243	me_mechlist(struct MsgBuf msgbuf_p, struct Client client_p, struct Client *source_p,
	244	int parc, const char *parv[])
	245	{
	246	rb_strlcpy(mechlist_buf, parv[1], sizeof mechlist_buf);
da3e5fcb AC	247	}
da3e5fcb AC	248
212380e3 AC	249	/* If the client never finished authenticating but is
	250	* registering anyway, abort the exchange.
	251	*/
	252	static void
	253	abort_sasl(struct Client *data)
	254	{
c6bc97fd	255	if(data->localClient->sasl_out == 0 \|\| data->localClient->sasl_complete)
212380e3 AC	256	return;
212380e3 AC	257
c6bc97fd	258	data->localClient->sasl_out = data->localClient->sasl_complete = 0;
47adde3d	259	ServerStats.is_sbad++;
212380e3 AC	260
	261	if(!IsClosing(data))
	262	sendto_one(data, form_str(ERR_SASLABORTED), me.name, EmptyString(data->name) ? "*" : data->name);
	263
c6bc97fd	264	if(*data->localClient->sasl_agent)
212380e3	265	{
c6bc97fd	266	struct Client *agent_p = find_id(data->localClient->sasl_agent);
212380e3 AC	267	if(agent_p)
	268	{
	269	sendto_one(agent_p, ":%s ENCAP %s SASL %s %s D A", me.id, agent_p->servptr->name,
	270	data->id, agent_p->id);
	271	return;
	272	}
	273	}
	274
	275	sendto_server(NULL, NULL, CAP_TS6\|CAP_ENCAP, NOCAPS, ":%s ENCAP * SASL %s * D A", me.id,
	276	data->id);
	277	}
	278
	279	static void
	280	abort_sasl_exit(hook_data_client_exit *data)
	281	{
c23902ae AC	282	if (data->target->localClient)
c23902ae AC	283	abort_sasl(data->target);
212380e3 AC	284	}
212380e3 AC	285
12565204 AC	286	static void
	287	advertise_sasl(struct Client *client_p)
	288	{
	289	if (!ConfigFileEntry.sasl_service)
	290	return;
	291
	292	if (irccmp(client_p->name, ConfigFileEntry.sasl_service))
	293	return;
	294
	295	sendto_local_clients_with_capability(CLICAP_CAP_NOTIFY, ":%s CAP * NEW :sasl", me.name);
	296	}
	297
	298	static void
	299	advertise_sasl_exit(hook_data_client_exit *data)
	300	{
	301	if (!ConfigFileEntry.sasl_service)
	302	return;
	303
	304	if (irccmp(data->target->name, ConfigFileEntry.sasl_service))
	305	return;
	306
	307	sendto_local_clients_with_capability(CLICAP_CAP_NOTIFY, ":%s CAP * DEL :sasl", me.name);
	308	}