/*! \brief Initiate new call, part of PBX interface
 *         dest is the dial string */
static int local_call(struct ast_channel *ast, const char *dest, int timeout)
{
	struct local_pvt *p = ast_channel_tech_pvt(ast);
	int pvt_locked = 0;

	struct ast_channel *owner = NULL;
	struct ast_channel *chan = NULL;
	int res;
	struct ast_var_t *varptr;
	struct ast_var_t *clone_var;
	char *reduced_dest = ast_strdupa(dest);
	char *slash;
	const char *exten;
	const char *context;

	if (!p) {
		return -1;
	}

	/* since we are letting go of channel locks that were locked coming into
	 * this function, then we need to give the tech pvt a ref */
	ao2_ref(p, 1);
	ast_channel_unlock(ast);

	awesome_locking(p, &chan, &owner);
	pvt_locked = 1;

	if (owner != ast) {
		res = -1;
		goto return_cleanup;
	}

	if (!owner || !chan) {
		res = -1;
		goto return_cleanup;
	}

	/*
	 * Note that cid_num and cid_name aren't passed in the ast_channel_alloc
	 * call, so it's done here instead.
	 *
	 * All these failure points just return -1. The individual strings will
	 * be cleared when we destroy the channel.
	 */
	ast_party_redirecting_copy(ast_channel_redirecting(chan), ast_channel_redirecting(owner));

	ast_party_dialed_copy(ast_channel_dialed(chan), ast_channel_dialed(owner));

	ast_connected_line_copy_to_caller(ast_channel_caller(chan), ast_channel_connected(owner));
	ast_connected_line_copy_from_caller(ast_channel_connected(chan), ast_channel_caller(owner));

	ast_channel_language_set(chan, ast_channel_language(owner));
	ast_channel_accountcode_set(chan, ast_channel_accountcode(owner));
	ast_channel_musicclass_set(chan, ast_channel_musicclass(owner));
	ast_cdr_update(chan);

	ast_channel_cc_params_init(chan, ast_channel_get_cc_config_params(owner));

	/* Make sure we inherit the AST_CAUSE_ANSWERED_ELSEWHERE if it's set on the queue/dial call request in the dialplan */
	if (ast_channel_hangupcause(ast) == AST_CAUSE_ANSWERED_ELSEWHERE) {
		ast_channel_hangupcause_set(chan, AST_CAUSE_ANSWERED_ELSEWHERE);
	}

	/* copy the channel variables from the incoming channel to the outgoing channel */
	/* Note that due to certain assumptions, they MUST be in the same order */
	AST_LIST_TRAVERSE(ast_channel_varshead(owner), varptr, entries) {
		clone_var = ast_var_assign(varptr->name, varptr->value);
		if (clone_var) {
			AST_LIST_INSERT_TAIL(ast_channel_varshead(chan), clone_var, entries);
		}
	}
Example #2
0
/*!
 * \internal
 * \brief Handle COLP and redirecting conditions.
 * \since 12.0.0
 *
 * \param p Unreal private structure.
 * \param ast Channel indicating the condition.
 * \param condition What is being indicated.
 *
 * \retval 0 on success.
 * \retval -1 on error.
 */
static int unreal_colp_redirect_indicate(struct ast_unreal_pvt *p, struct ast_channel *ast, int condition)
{
	struct ast_channel *my_chan;
	struct ast_channel *my_owner;
	struct ast_channel *this_channel;
	struct ast_channel *the_other_channel;
	int isoutbound;
	int res = 0;
	unsigned char frame_data[1024];
	struct ast_frame f = {
		.frametype = AST_FRAME_CONTROL,
		.subclass.integer = condition,
		.data.ptr = frame_data,
	};

	/*
	 * A connected line update frame may only contain a partial
	 * amount of data, such as just a source, or just a ton, and not
	 * the full amount of information.  However, the collected
	 * information is all stored in the outgoing channel's
	 * connectedline structure, so when receiving a connected line
	 * update on an outgoing unreal channel, we need to transmit the
	 * collected connected line information instead of whatever
	 * happens to be in this control frame.  The same applies for
	 * redirecting information, which is why it is handled here as
	 * well.
	 */
	ast_channel_unlock(ast);
	ast_unreal_lock_all(p, &my_chan, &my_owner);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	if (isoutbound) {
		this_channel = p->chan;
		the_other_channel = p->owner;
	} else {
		this_channel = p->owner;
		the_other_channel = p->chan;
	}
	if (the_other_channel) {
		if (condition == AST_CONTROL_CONNECTED_LINE) {
			ast_connected_line_copy_to_caller(ast_channel_caller(the_other_channel),
				ast_channel_connected(this_channel));
			f.datalen = ast_connected_line_build_data(frame_data, sizeof(frame_data),
				ast_channel_connected(this_channel), NULL);
		} else {
			f.datalen = ast_redirecting_build_data(frame_data, sizeof(frame_data),
				ast_channel_redirecting(this_channel), NULL);
		}
	}
	if (my_chan) {
		ast_channel_unlock(my_chan);
		ast_channel_unref(my_chan);
	}
	if (my_owner) {
		ast_channel_unlock(my_owner);
		ast_channel_unref(my_owner);
	}
	if (the_other_channel) {
		res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	}
	ao2_unlock(p);
	ast_channel_lock(ast);

	return res;
}

int ast_unreal_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = 0;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */

	switch (condition) {
	case AST_CONTROL_CONNECTED_LINE:
	case AST_CONTROL_REDIRECTING:
		res = unreal_colp_redirect_indicate(p, ast, condition);
		break;
	case AST_CONTROL_HOLD:
		if (ast_test_flag(p, AST_UNREAL_MOH_INTERCEPT)) {
			ast_moh_start(ast, data, NULL);
			break;
		}
		res = unreal_queue_indicate(p, ast, condition, data, datalen);
		break;
	case AST_CONTROL_UNHOLD:
		if (ast_test_flag(p, AST_UNREAL_MOH_INTERCEPT)) {
			ast_moh_stop(ast);
			break;
		}
		res = unreal_queue_indicate(p, ast, condition, data, datalen);
		break;
	default:
		res = unreal_queue_indicate(p, ast, condition, data, datalen);
		break;
	}

	ao2_ref(p, -1);
	return res;
}

int ast_unreal_digit_begin(struct ast_channel *ast, char digit)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = -1;
	struct ast_frame f = { AST_FRAME_DTMF_BEGIN, };
	int isoutbound;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */
	ao2_lock(p);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	f.subclass.integer = digit;
	res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	ao2_unlock(p);
	ao2_ref(p, -1);

	return res;
}

int ast_unreal_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = -1;
	struct ast_frame f = { AST_FRAME_DTMF_END, };
	int isoutbound;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */
	ao2_lock(p);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	f.subclass.integer = digit;
	f.len = duration;
	res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	ao2_unlock(p);
	ao2_ref(p, -1);

	return res;
}

int ast_unreal_sendtext(struct ast_channel *ast, const char *text)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = -1;
	struct ast_frame f = { AST_FRAME_TEXT, };
	int isoutbound;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */
	ao2_lock(p);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	f.data.ptr = (char *) text;
	f.datalen = strlen(text) + 1;
	res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	ao2_unlock(p);
	ao2_ref(p, -1);
	return res;
}

int ast_unreal_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = -1;
	struct ast_frame f = { AST_FRAME_HTML, };
	int isoutbound;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */
	ao2_lock(p);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	f.subclass.integer = subclass;
	f.data.ptr = (char *)data;
	f.datalen = datalen;
	res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	ao2_unlock(p);
	ao2_ref(p, -1);

	return res;
}

void ast_unreal_call_setup(struct ast_channel *semi1, struct ast_channel *semi2)
{
	struct ast_var_t *varptr;
	struct ast_var_t *clone_var;

	/*
	 * Note that cid_num and cid_name aren't passed in the
	 * ast_channel_alloc calls in ast_unreal_new_channels().  It's
	 * done here instead.
	 */
	ast_party_redirecting_copy(ast_channel_redirecting(semi2), ast_channel_redirecting(semi1));

	ast_party_dialed_copy(ast_channel_dialed(semi2), ast_channel_dialed(semi1));

	ast_connected_line_copy_to_caller(ast_channel_caller(semi2), ast_channel_connected(semi1));
	ast_connected_line_copy_from_caller(ast_channel_connected(semi2), ast_channel_caller(semi1));

	ast_channel_language_set(semi2, ast_channel_language(semi1));
	ast_channel_accountcode_set(semi2, ast_channel_accountcode(semi1));
	ast_channel_musicclass_set(semi2, ast_channel_musicclass(semi1));

	ast_channel_cc_params_init(semi2, ast_channel_get_cc_config_params(semi1));

	/*
	 * Make sure we inherit the AST_CAUSE_ANSWERED_ELSEWHERE if it's
	 * set on the queue/dial call request in the dialplan.
	 */
	if (ast_channel_hangupcause(semi1) == AST_CAUSE_ANSWERED_ELSEWHERE) {
		ast_channel_hangupcause_set(semi2, AST_CAUSE_ANSWERED_ELSEWHERE);
	}

	/*
	 * Copy the channel variables from the semi1 channel to the
	 * outgoing channel.
	 *
	 * Note that due to certain assumptions, they MUST be in the
	 * same order.
	 */
	AST_LIST_TRAVERSE(ast_channel_varshead(semi1), varptr, entries) {
		clone_var = ast_var_assign(varptr->name, varptr->value);
		if (clone_var) {
			AST_LIST_INSERT_TAIL(ast_channel_varshead(semi2), clone_var, entries);
		}
	}
	ast_channel_datastore_inherit(semi1, semi2);
}