Example #1
0
void connection_init_from_streams(struct connection_list *list,
			    struct connection *conn, const char *name,
			    struct istream *input, struct ostream *output)
{
	i_assert(name != NULL);

	conn->list = list;
	conn->name = i_strdup(name);
	conn->fd_in = i_stream_get_fd(input);
	conn->fd_out = o_stream_get_fd(output);

	i_assert(conn->fd_in >= 0);
	i_assert(conn->fd_out >= 0);
	i_assert(conn->io == NULL);
	i_assert(conn->input == NULL);
	i_assert(conn->output == NULL);
	i_assert(conn->to == NULL);

	conn->input = input;
	i_stream_ref(conn->input);
	i_stream_set_name(conn->input, conn->name);

	conn->output = output;
	o_stream_ref(conn->output);
	o_stream_set_no_error_handling(conn->output, TRUE);
	o_stream_set_name(conn->output, conn->name);

	conn->io = io_add_istream(conn->input, *list->v.input, conn);
	
	DLLIST_PREPEND(&list->connections, conn);
	list->connections_count++;

	if (list->v.client_connected != NULL)
		list->v.client_connected(conn, TRUE);
}
Example #2
0
struct login_connection *
login_connection_init(struct director *dir, int fd,
		      struct auth_connection *auth,
		      enum login_connection_type type)
{
	struct login_connection *conn;

	conn = i_new(struct login_connection, 1);
	conn->refcount = 1;
	conn->fd = fd;
	conn->dir = dir;
	conn->output = o_stream_create_fd(conn->fd, (size_t)-1, FALSE);
	o_stream_set_no_error_handling(conn->output, TRUE);
	if (type != LOGIN_CONNECTION_TYPE_AUTHREPLY) {
		i_assert(auth != NULL);
		conn->auth = auth;
		conn->io = io_add(conn->fd, IO_READ,
				  login_connection_input, conn);
		auth_connection_set_callback(conn->auth, auth_input_line, conn);
	} else {
		i_assert(auth == NULL);
		conn->input = i_stream_create_fd(conn->fd, IO_BLOCK_SIZE, FALSE);
		conn->io = io_add(conn->fd, IO_READ,
				  login_connection_authreply_input, conn);
		o_stream_nsend_str(conn->output, t_strdup_printf(
			"VERSION\tdirector-authreply-server\t%d\t%d\n",
			AUTHREPLY_PROTOCOL_MAJOR_VERSION,
			AUTHREPLY_PROTOCOL_MINOR_VERSION));
	}
	conn->type = type;

	DLLIST_PREPEND(&login_connections, conn);
	return conn;
}
Example #3
0
void mail_index_view_clone(struct mail_index_view *dest,
			   const struct mail_index_view *src)
{
	memset(dest, 0, sizeof(*dest));
	dest->refcount = 1;
	dest->v = src->v;
	dest->index = src->index;
	if (src->log_view != NULL) {
		dest->log_view =
			mail_transaction_log_view_open(src->index->log);
	}

	dest->indexid = src->indexid;
	dest->inconsistency_id = src->inconsistency_id;
	dest->map = src->map;
	if (dest->map != NULL)
		dest->map->refcount++;

	dest->log_file_expunge_seq = src->log_file_expunge_seq;
	dest->log_file_expunge_offset = src->log_file_expunge_offset;
	dest->log_file_head_seq = src->log_file_head_seq;
	dest->log_file_head_offset = src->log_file_head_offset;

	i_array_init(&dest->module_contexts,
		     I_MIN(5, mail_index_module_register.id));

	DLLIST_PREPEND(&dest->index->views, dest);
}
Example #4
0
void login_proxy_detach(struct login_proxy *proxy)
{
	struct client *client = proxy->client;
	const unsigned char *data;
	size_t size;

	i_assert(proxy->client_fd == -1);
	i_assert(proxy->server_input != NULL);
	i_assert(proxy->server_output != NULL);

	if (proxy->to != NULL)
		timeout_remove(&proxy->to);

	proxy->client_fd = i_stream_get_fd(client->input);
	proxy->client_input = client->input;
	proxy->client_output = client->output;

	i_stream_set_persistent_buffers(client->input, FALSE);
	o_stream_set_max_buffer_size(client->output, (size_t)-1);
	o_stream_set_flush_callback(client->output, proxy_client_output, proxy);
	client->input = NULL;
	client->output = NULL;

	/* send all pending client input to proxy */
	data = i_stream_get_data(proxy->client_input, &size);
	if (size != 0)
		o_stream_nsend(proxy->server_output, data, size);

	/* from now on, just do dummy proxying */
	io_remove(&proxy->server_io);
	proxy->server_io =
		io_add(proxy->server_fd, IO_READ, server_input, proxy);
	proxy->client_io =
		io_add_istream(proxy->client_input, proxy_client_input, proxy);
	o_stream_set_flush_callback(proxy->server_output, server_output, proxy);
	i_stream_destroy(&proxy->server_input);

	if (proxy->notify_refresh_secs != 0) {
		proxy->to_notify =
			timeout_add(proxy->notify_refresh_secs * 1000,
				    login_proxy_notify, proxy);
	}

	proxy->callback = NULL;

	if (login_proxy_ipc_server == NULL) {
		login_proxy_ipc_server =
			ipc_server_init(LOGIN_PROXY_IPC_PATH,
					LOGIN_PROXY_IPC_NAME,
					login_proxy_ipc_cmd);
	}

	DLLIST_REMOVE(&login_proxies_pending, proxy);
	DLLIST_PREPEND(&login_proxies, proxy);

	client->fd = -1;
	client->login_proxy = NULL;
}
Example #5
0
static void
http_client_request_add(struct http_client_request *req)
{
	struct http_client *client = req->client;

	DLLIST_PREPEND(&client->requests_list, req);
	client->requests_count++;
	req->listed = TRUE;
}
struct notify_context *
notify_register(const struct notify_vfuncs *v)
{
	struct notify_context *ctx;

	ctx = i_new(struct notify_context, 1);
	ctx->v = *v;
	DLLIST_PREPEND(&ctx_list, ctx);
	return ctx;
}
Example #7
0
enum io_notify_result
io_add_notify(const char *path, const char *source_filename,
	      unsigned int source_linenum,
	      io_callback_t *callback, void *context, struct io **io_r)
{
	struct ioloop_notify_handler_context *ctx =
		current_ioloop->notify_handler_context;
	struct kevent ev;
	struct io_notify *io;
	int fd;

	if (ctx == NULL)
		ctx = io_loop_notify_handler_init();

	fd = open(path, O_RDONLY);
	if (fd == -1) {
		/* ESTALE could happen with NFS. Don't bother giving an error
		   message then. */
		if (errno != ENOENT && errno != ESTALE)
			i_error("open(%s) for kq notify failed: %m", path);
		return IO_NOTIFY_NOTFOUND;
	}
	fd_close_on_exec(fd, TRUE);

	io = i_new(struct io_notify, 1);
	io->io.condition = IO_NOTIFY;
	io->io.source_filename = source_filename;
	io->io.source_linenum = source_linenum;
	io->io.callback = callback;
	io->io.context = context;
	io->io.ioloop = current_ioloop;
	io->refcount = 1;
	io->fd = fd;

	/* EV_CLEAR flag is needed because the EVFILT_VNODE filter reports
	   event state transitions and not the current state.  With this flag,
	   the same event is only returned once. */
	MY_EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_CLEAR,
		  NOTE_DELETE | NOTE_RENAME | NOTE_WRITE | NOTE_EXTEND |
		  NOTE_REVOKE, 0, io);
	if (kevent(ctx->kq, &ev, 1, NULL, 0, NULL) < 0) {
		i_error("kevent(%d, %s) for notify failed: %m", fd, path);
		i_close_fd(&fd);
		i_free(io);
		return IO_NOTIFY_NOSUPPORT;
	}

	if (ctx->event_io == NULL) {
		ctx->event_io = io_add(ctx->kq, IO_READ, event_callback,
				       io->io.ioloop->notify_handler_context);
	}
	DLLIST_PREPEND(&ctx->notifies, io);
	*io_r = &io->io;
	return IO_NOTIFY_ADDED;
}
Example #8
0
struct fifo_input_connection *fifo_input_connection_create(int fd)
{
	struct fifo_input_connection *conn;

	conn = i_new(struct fifo_input_connection, 1);
	conn->fd = fd;
	conn->input = i_stream_create_fd(fd, MAX_INBUF_SIZE, FALSE);
	conn->io = io_add(fd, IO_READ, fifo_input_connection_input, conn);
	DLLIST_PREPEND(&fifo_conns, conn);
	return conn;
}
Example #9
0
static unsigned int login_proxy_delay_disconnect(struct login_proxy *proxy)
{
	struct login_proxy_record *rec = proxy->state_rec;
	const unsigned int max_delay =
		proxy->client->set->login_proxy_max_disconnect_delay;
	struct timeval disconnect_time_offset;
	unsigned int max_disconnects_per_sec, delay_msecs_since_ts, max_conns;
	int delay_msecs;

	if (rec->num_disconnects_since_ts == 0) {
		rec->disconnect_timestamp = ioloop_timeval;
		/* start from a slightly random timestamp. this way all proxy
		   processes will disconnect at slightly different times to
		   spread the load. */
		timeval_add_msecs(&rec->disconnect_timestamp,
				  rand() % PROXY_DISCONNECT_INTERVAL_MSECS);
	}
	rec->num_disconnects_since_ts++;
	if (proxy->to != NULL) {
		/* we were already lazily disconnecting this */
		return 0;
	}
	if (max_delay == 0) {
		/* delaying is disabled */
		return 0;
	}
	max_conns = rec->num_proxying_connections + rec->num_disconnects_since_ts;
	max_disconnects_per_sec = (max_conns + max_delay-1) / max_delay;
	if (rec->num_disconnects_since_ts <= max_disconnects_per_sec &&
	    rec->num_delayed_client_disconnects == 0) {
		/* wait delaying until we have 1 second's worth of clients
		   disconnected */
		return 0;
	}

	/* see at which time we should be disconnecting the client.
	   do it in 100ms intervals so the timeouts are triggered together. */
	disconnect_time_offset = rec->disconnect_timestamp;
	delay_msecs_since_ts = PROXY_DISCONNECT_INTERVAL_MSECS *
		(max_delay * rec->num_disconnects_since_ts *
		 (1000/PROXY_DISCONNECT_INTERVAL_MSECS) / max_conns);
	timeval_add_msecs(&disconnect_time_offset, delay_msecs_since_ts);
	delay_msecs = timeval_diff_msecs(&disconnect_time_offset, &ioloop_timeval);
	if (delay_msecs <= 0) {
		/* we already reached the time */
		return 0;
	}

	rec->num_delayed_client_disconnects++;
	proxy->delayed_disconnect = TRUE;
	proxy->to = timeout_add(delay_msecs, login_proxy_free_final, proxy);
	DLLIST_PREPEND(&login_proxies_disconnecting, proxy);
	return delay_msecs;
}
Example #10
0
struct config_connection *config_connection_create(int fd)
{
	struct config_connection *conn;

	conn = i_new(struct config_connection, 1);
	conn->fd = fd;
	conn->input = i_stream_create_fd(fd, MAX_INBUF_SIZE, FALSE);
	conn->output = o_stream_create_fd(fd, (size_t)-1, FALSE);
	conn->io = io_add(fd, IO_READ, config_connection_input, conn);
	DLLIST_PREPEND(&config_connections, conn);
	return conn;
}
Example #11
0
void connection_init_client_unix(struct connection_list *list,
				 struct connection *conn, const char *path)
{
	i_assert(list->set.client);

	conn->fd_in = conn->fd_out = -1;
	conn->list = list;
	conn->name = i_strdup(path);

	DLLIST_PREPEND(&list->connections, conn);
	list->connections_count++;
}
struct client *
client_create(int fd, bool ssl, pool_t pool,
	      const struct login_settings *set,
	      const struct master_service_ssl_settings *ssl_set,
	      void **other_sets,
	      const struct ip_addr *local_ip, const struct ip_addr *remote_ip)
{
	struct client *client;

	i_assert(fd != -1);

	client = login_binary->client_vfuncs->alloc(pool);
	client->v = *login_binary->client_vfuncs;
	if (client->v.auth_send_challenge == NULL)
		client->v.auth_send_challenge = client_auth_send_challenge;
	if (client->v.auth_parse_response == NULL)
		client->v.auth_parse_response = client_auth_parse_response;

	client->created = ioloop_time;
	client->refcount = 1;

	client->pool = pool;
	client->set = set;
	client->ssl_set = ssl_set;
	client->real_local_ip = client->local_ip = *local_ip;
	client->real_remote_ip = client->ip = *remote_ip;
	client->fd = fd;
	client->tls = ssl;
	client->trusted = client_is_trusted(client);
	client->secured = ssl || client->trusted ||
		net_ip_compare(remote_ip, local_ip);
	client->proxy_ttl = LOGIN_PROXY_TTL;

	if (last_client == NULL)
		last_client = client;
	DLLIST_PREPEND(&clients, client);
	clients_count++;

	client->to_disconnect =
		timeout_add(CLIENT_LOGIN_TIMEOUT_MSECS,
			    client_idle_disconnect_timeout, client);
	client_open_streams(client);

	client->v.create(client, other_sets);

	if (auth_client_is_connected(auth_client))
		client_notify_auth_ready(client);
	else
		client_set_auth_waiting(client);

	login_refresh_proctitle();
	return client;
}
void notify_contexts_mail_transaction_begin(struct mailbox_transaction_context *t)
{
	struct notify_context *ctx;
	struct notify_mail_txn *mail_txn;
	
	for (ctx = ctx_list; ctx != NULL; ctx = ctx->next) {
		mail_txn = i_new(struct notify_mail_txn, 1);
		mail_txn->parent_mailbox_txn = t;
		mail_txn->txn = ctx->v.mail_transaction_begin == NULL ? NULL :
			ctx->v.mail_transaction_begin(t);
		DLLIST_PREPEND(&ctx->mail_txn_list, mail_txn);
	}
}
Example #14
0
struct client_command_context *client_command_alloc(struct client *client)
{
	struct client_command_context *cmd;

	cmd = p_new(client->command_pool, struct client_command_context, 1);
	cmd->client = client;
	cmd->pool = client->command_pool;
	p_array_init(&cmd->module_contexts, cmd->pool, 5);

	DLLIST_PREPEND(&client->command_queue, cmd);
	client->command_queue_size++;
	return cmd;
}
Example #15
0
int login_proxy_new(struct client *client,
		    const struct login_proxy_settings *set,
		    proxy_callback_t *callback)
{
	struct login_proxy *proxy;

	i_assert(client->login_proxy == NULL);

	if (set->host == NULL || *set->host == '\0') {
		i_error("proxy(%s): host not given", client->virtual_user);
		return -1;
	}

	if (client->proxy_ttl <= 1) {
		i_error("proxy(%s): TTL reached zero - "
			"proxies appear to be looping?", client->virtual_user);
		return -1;
	}

	proxy = i_new(struct login_proxy, 1);
	proxy->client = client;
	proxy->client_fd = -1;
	proxy->server_fd = -1;
	proxy->created = ioloop_timeval;
	proxy->ip = set->ip;
	proxy->source_ip = set->source_ip;
	proxy->host = i_strdup(set->host);
	proxy->port = set->port;
	proxy->connect_timeout_msecs = set->connect_timeout_msecs;
	proxy->notify_refresh_secs = set->notify_refresh_secs;
	proxy->ssl_flags = set->ssl_flags;
	proxy->state_rec = login_proxy_state_get(proxy_state, &proxy->ip,
						 proxy->port);
	client_ref(client);

	if (set->ip.family == 0 &&
	    net_addr2ip(set->host, &proxy->ip) < 0) {
		i_error("proxy(%s): BUG: host %s is not an IP "
			"(auth should have changed it)",
			client->virtual_user, set->host);
	} else {
		if (login_proxy_connect(proxy) < 0)
			return -1;
	}

	DLLIST_PREPEND(&login_proxies_pending, proxy);

	proxy->callback = callback;
	client->login_proxy = proxy;
	return 0;
}
Example #16
0
int login_proxy_new(struct client *client,
		    const struct login_proxy_settings *set,
		    proxy_callback_t *callback)
{
	struct login_proxy *proxy;

	i_assert(client->login_proxy == NULL);

	if (set->host == NULL || *set->host == '\0') {
		client_log_err(client, t_strdup_printf(
			"proxy(%s): host not given", client->virtual_user));
		return -1;
	}

	if (client->proxy_ttl <= 1) {
		client_log_err(client, t_strdup_printf(
			"proxy(%s): TTL reached zero - "
			"proxies appear to be looping?", client->virtual_user));
		return -1;
	}

	proxy = i_new(struct login_proxy, 1);
	proxy->client = client;
	proxy->client_fd = -1;
	proxy->server_fd = -1;
	proxy->created = ioloop_timeval;
	proxy->ip = set->ip;
	proxy->source_ip = set->source_ip;
	proxy->host = i_strdup(set->host);
	proxy->port = set->port;
	proxy->connect_timeout_msecs = set->connect_timeout_msecs;
	proxy->notify_refresh_secs = set->notify_refresh_secs;
	proxy->ssl_flags = set->ssl_flags;
	proxy->state_rec = login_proxy_state_get(proxy_state, &proxy->ip,
						 proxy->port);
	client_ref(client);

	if (login_proxy_connect(proxy) < 0) {
		login_proxy_free(&proxy);
		return -1;
	}

	DLLIST_PREPEND(&login_proxies_pending, proxy);

	proxy->callback = callback;
	client->login_proxy = proxy;
	return 0;
}
Example #17
0
void connection_init_client_ip(struct connection_list *list,
			       struct connection *conn,
			       const struct ip_addr *ip, unsigned int port)
{
	i_assert(list->set.client);

	conn->fd_in = conn->fd_out = -1;
	conn->list = list;
	conn->name = i_strdup_printf("%s:%u", net_ip2addr(ip), port);

	conn->ip = *ip;
	conn->port = port;

	DLLIST_PREPEND(&list->connections, conn);
	list->connections_count++;
}
Example #18
0
void connection_init_server(struct connection_list *list,
			    struct connection *conn, const char *name,
			    int fd_in, int fd_out)
{
	i_assert(name != NULL);
	i_assert(!list->set.client);

	conn->list = list;
	conn->name = i_strdup(name);
	conn->fd_in = fd_in;
	conn->fd_out = fd_out;
	connection_init_streams(conn);

	DLLIST_PREPEND(&list->connections, conn);
	list->connections_count++;
}
struct auth_postfix_connection *
auth_postfix_connection_create(struct auth *auth, int fd)
{
	struct auth_postfix_connection *conn;

	conn = i_new(struct auth_postfix_connection, 1);
	conn->refcount = 1;
	conn->fd = fd;
	conn->auth = auth;
	conn->input = i_stream_create_fd(fd, MAX_INBUF_SIZE, FALSE);
	conn->output = o_stream_create_fd(fd, (size_t)-1, FALSE);
	o_stream_set_no_error_handling(conn->output, TRUE);
	conn->io = io_add(fd, IO_READ, postfix_input, conn);
	DLLIST_PREPEND(&auth_postfix_connections, conn);
	return conn;
}
Example #20
0
struct client *client_create(int fd)
{
	struct client *client;

	client = i_new(struct client, 1);
	client->fd = fd;
	client->io = io_add(fd, IO_READ, client_input, client);
	client->input = i_stream_create_fd(fd, MAX_INBUF_SIZE, FALSE);
	client->output = o_stream_create_fd(fd, (size_t)-1, FALSE);
	o_stream_set_no_error_handling(client->output, TRUE);
	o_stream_set_flush_callback(client->output, client_output, client);
	client->cmd_pool = pool_alloconly_create("cmd pool", 1024);

	DLLIST_PREPEND(&clients, client);
	return client;
}
void notify_connection_create(int fd, bool fifo)
{
    struct notify_connection *conn;

    conn = i_new(struct notify_connection, 1);
    conn->refcount = 1;
    conn->fd = fd;
    conn->io = io_add(fd, IO_READ, notify_input, conn);
    conn->input = i_stream_create_fd(fd, MAX_INBUF_SIZE, FALSE);
    if (!fifo) {
        conn->output = o_stream_create_fd(fd, (size_t)-1, FALSE);
        o_stream_set_no_error_handling(conn->output, TRUE);
    }

    DLLIST_PREPEND(&conns, conn);
}
Example #22
0
static struct client *
client_create_standalone(const char *access_user,
			 const char *const *access_applications,
			 int fd_in, int fd_out, bool debug)
{
	struct client *client;

	/* always use nonblocking I/O */
	net_set_nonblock(fd_in, TRUE);
	net_set_nonblock(fd_out, TRUE);

	client = i_new(struct client, 1);
	i_array_init(&client->access_apps, 16);
	client->fd_in = fd_in;
	client->fd_out = fd_out;
	client->fd_ctrl = -1;

	if (access_user != NULL && *access_user != '\0')
		client->access_user = i_strdup(access_user);
	else {
		client->access_user = i_strdup("anonymous");
		client->access_anonymous = TRUE;
	}
	if (access_applications != NULL) {
		const char *const *apps = access_applications;
		for (; *apps != NULL; apps++) {
			char *app = i_strdup(*apps);
			array_append(&client->access_apps, &app, 1);
		}
	}
	client->debug = debug;

	client->input = i_stream_create_fd(fd_in, MAX_INBUF_SIZE, FALSE);
	client->output = o_stream_create_fd(fd_out, (size_t)-1, FALSE);
	client->io = io_add(fd_in, IO_READ, client_input, client);
	client->to_idle = timeout_add(CLIENT_IDLE_TIMEOUT_MSECS,
				      client_idle_timeout, client);
	o_stream_set_flush_callback(client->output, client_output, client);

	imap_urlauth_worker_client_count++;
	DLLIST_PREPEND(&imap_urlauth_worker_clients, client);

	i_set_failure_prefix("imap-urlauth[%s](%s): ",
			     my_pid, client->access_user);
	return client;
}
Example #23
0
static struct mailbox_transaction_context *
stats_transaction_begin(struct mailbox *box,
			enum mailbox_transaction_flags flags)
{
	struct stats_user *suser = STATS_USER_CONTEXT(box->storage->user);
	struct stats_mailbox *sbox = STATS_CONTEXT(box);
	struct mailbox_transaction_context *trans;
	struct stats_transaction_context *strans;

	trans = sbox->module_ctx.super.transaction_begin(box, flags);
	trans->stats_track = TRUE;

	strans = i_new(struct stats_transaction_context, 1);
	strans->trans = trans;
	DLLIST_PREPEND(&suser->transactions, strans);

	MODULE_CONTEXT_SET(trans, stats_storage_module, strans);
	return trans;
}
void auth_client_connection_create(struct auth *auth, int fd,
				   bool login_requests, bool token_auth)
{
	static unsigned int connect_uid_counter = 0;
	struct auth_client_connection *conn;
	const char *mechanisms;
	string_t *str;

	conn = i_new(struct auth_client_connection, 1);
	conn->auth = auth;
	conn->refcount = 1;
	conn->connect_uid = ++connect_uid_counter;
	conn->login_requests = login_requests;
	conn->token_auth = token_auth;
	random_fill(conn->cookie, sizeof(conn->cookie));

	conn->fd = fd;
	conn->input = i_stream_create_fd(fd, AUTH_CLIENT_MAX_LINE_LENGTH);
	conn->output = o_stream_create_fd(fd, (size_t)-1);
	o_stream_set_no_error_handling(conn->output, TRUE);
	o_stream_set_flush_callback(conn->output, auth_client_output, conn);
	conn->io = io_add(fd, IO_READ, auth_client_input, conn);

	DLLIST_PREPEND(&auth_client_connections, conn);

	if (token_auth) {
		mechanisms = t_strconcat("MECH\t",
			mech_dovecot_token.mech_name, "\n", NULL);
	} else {
		mechanisms = str_c(auth->reg->handshake);
	}

	str = t_str_new(128);
	str_printfa(str, "VERSION\t%u\t%u\n%sSPID\t%s\nCUID\t%u\nCOOKIE\t",
                    AUTH_CLIENT_PROTOCOL_MAJOR_VERSION,
                    AUTH_CLIENT_PROTOCOL_MINOR_VERSION,
		    mechanisms, my_pid, conn->connect_uid);
	binary_to_hex_append(str, conn->cookie, sizeof(conn->cookie));
	str_append(str, "\nDONE\n");

	if (o_stream_send(conn->output, str_data(str), str_len(str)) < 0)
		auth_client_disconnected(&conn);
}
Example #25
0
struct notify_connection *
notify_connection_create(int fd, struct replicator_queue *queue)
{
	struct notify_connection *conn;

	i_assert(fd >= 0);

	conn = i_new(struct notify_connection, 1);
	conn->refcount = 1;
	conn->queue = queue;
	conn->fd = fd;
	conn->input = i_stream_create_fd(fd, MAX_INBUF_SIZE, FALSE);
	conn->output = o_stream_create_fd(fd, (size_t)-1, FALSE);
	o_stream_set_no_error_handling(conn->output, TRUE);
	conn->io = io_add(fd, IO_READ, notify_connection_input, conn);
	conn->queue = queue;

	DLLIST_PREPEND(&connections, conn);
	return conn;
}
Example #26
0
struct login_connection *
login_connection_init(struct director *dir, int fd,
		      struct auth_connection *auth, bool userdb)
{
	struct login_connection *conn;

	conn = i_new(struct login_connection, 1);
	conn->refcount = 1;
	conn->fd = fd;
	conn->auth = auth;
	conn->dir = dir;
	conn->output = o_stream_create_fd(conn->fd, (size_t)-1, FALSE);
	o_stream_set_no_error_handling(conn->output, TRUE);
	conn->io = io_add(conn->fd, IO_READ, login_connection_input, conn);
	conn->userdb = userdb;

	auth_connection_set_callback(conn->auth, auth_input_line, conn);
	DLLIST_PREPEND(&login_connections, conn);
	return conn;
}
Example #27
0
static struct client *client_create(int fd)
{
	struct client *client;

	/* always use nonblocking I/O */
	net_set_nonblock(fd, TRUE);

	client = i_new(struct client, 1);
	i_array_init(&client->access_apps, 16);
	client->fd_in = -1;
	client->fd_out = -1;
	client->fd_ctrl = fd;
	client->access_anonymous = TRUE; /* default until overridden */

	client->ctrl_io = io_add(fd, IO_READ, client_ctrl_input, client);
	client->to_idle = timeout_add(CLIENT_IDLE_TIMEOUT_MSECS,
				      client_idle_timeout, client);

	imap_urlauth_worker_client_count++;
	DLLIST_PREPEND(&imap_urlauth_worker_clients, client);

	imap_urlauth_worker_refresh_proctitle();
	return client;
}
Example #28
0
struct client *client_create(int fd_in, int fd_out,
			     const char *session_id, struct mail_user *user,
			     struct mail_storage_service_user *service_user,
			     const struct submission_settings *set,
			     const char *helo,
			     const unsigned char *pdata, unsigned int pdata_len)
{
	const struct mail_storage_settings *mail_set;
	struct smtp_server_settings smtp_set;
	const char *ident;
	struct client *client;

	/* always use nonblocking I/O */
	net_set_nonblock(fd_in, TRUE);
	net_set_nonblock(fd_out, TRUE);

	client = i_new(struct client, 1);
	client->user = user;
	client->service_user = service_user;
	client->set = set;
	client->session_id = i_strdup(session_id);

	i_zero(&smtp_set);
	smtp_set.hostname = set->hostname;
	smtp_set.login_greeting = set->login_greeting;
	smtp_set.max_recipients = set->submission_max_recipients;
	smtp_set.max_client_idle_time_msecs = CLIENT_IDLE_TIMEOUT_MSECS;
	smtp_set.debug = user->mail_debug;

	client->conn = smtp_server_connection_create(smtp_server,
		fd_in, fd_out, user->conn.remote_ip, user->conn.remote_port,
		FALSE, &smtp_set, &smtp_callbacks, client);

	client_proxy_create(client, set);

	smtp_server_connection_login(client->conn,
		client->user->username, helo,
		pdata, pdata_len, user->conn.ssl_secured);
	smtp_server_connection_start_pending(client->conn);

	mail_set = mail_user_set_get_storage_set(user);
	if (*set->imap_urlauth_host != '\0' &&
	    *mail_set->mail_attribute_dict != '\0') {
		/* Enable BURL capability only when urlauth dict is
		   configured correctly */
		client_init_urlauth(client);
	}

	submission_client_count++;
	DLLIST_PREPEND(&submission_clients, client);

	ident = mail_user_get_anvil_userip_ident(client->user);
	if (ident != NULL) {
		master_service_anvil_send(master_service, t_strconcat(
			"CONNECT\t", my_pid, "\tsubmission/",
			ident, "\n", NULL));
		client->anvil_sent = TRUE;
	}

	if (hook_client_created != NULL)
		hook_client_created(&client);

	submission_refresh_proctitle();
	return client;
}
Example #29
0
struct service_process *service_process_create(struct service *service)
{
	static unsigned int uid_counter = 0;
	struct service_process *process;
	unsigned int uid = ++uid_counter;
	const char *hostdomain;
	pid_t pid;
	bool process_forked;

	i_assert(service->status_fd[0] != -1);

	if (service->to_throttle != NULL) {
		/* throttling service, don't create new processes */
		return NULL;
	}
	if (service->list->destroying) {
		/* these services are being destroyed, no point in creating
		   new processes now */
		return NULL;
	}
	/* look this up before fork()ing so that it gets cached for all the
	   future lookups. */
	hostdomain = my_hostdomain();

	if (service->type == SERVICE_TYPE_ANVIL &&
	    service_anvil_global->pid != 0) {
		pid = service_anvil_global->pid;
		uid = service_anvil_global->uid;
		process_forked = FALSE;
	} else {
		pid = fork();
		process_forked = TRUE;
		service->list->fork_counter++;
	}

	if (pid < 0) {
		service_error(service, "fork() failed: %m");
		return NULL;
	}
	if (pid == 0) {
		/* child */
		service_process_setup_environment(service, uid, hostdomain);
		service_reopen_inet_listeners(service);
		service_dup_fds(service);
		drop_privileges(service);
		process_exec(service->executable, NULL);
	}
	i_assert(hash_table_lookup(service_pids, POINTER_CAST(pid)) == NULL);

	process = i_new(struct service_process, 1);
	process->service = service;
	process->refcount = 1;
	process->pid = pid;
	process->uid = uid;
	if (process_forked) {
		process->to_status =
			timeout_add(SERVICE_FIRST_STATUS_TIMEOUT_SECS * 1000,
				    service_process_status_timeout, process);
	}

	process->available_count = service->client_limit;
	service->process_count++;
	service->process_avail++;
	DLLIST_PREPEND(&service->processes, process);

	service_list_ref(service->list);
	hash_table_insert(service_pids, POINTER_CAST(process->pid), process);

	if (service->type == SERVICE_TYPE_ANVIL && process_forked)
		service_anvil_process_created(process);
	return process;
}
Example #30
0
struct client *client_create(int fd_in, int fd_out, const char *session_id,
			     struct mail_user *user,
			     struct mail_storage_service_user *service_user,
			     const struct imap_settings *set)
{
	const struct mail_storage_settings *mail_set;
	struct client *client;
	const char *ident;
	pool_t pool;
	bool explicit_capability = FALSE;

	/* always use nonblocking I/O */
	net_set_nonblock(fd_in, TRUE);
	net_set_nonblock(fd_out, TRUE);

	pool = pool_alloconly_create("imap client", 2048);
	client = p_new(pool, struct client, 1);
	client->pool = pool;
	client->v = imap_client_vfuncs;
	client->set = set;
	client->service_user = service_user;
	client->session_id = p_strdup(pool, session_id);
	client->fd_in = fd_in;
	client->fd_out = fd_out;
	client->input = i_stream_create_fd(fd_in,
					   set->imap_max_line_length, FALSE);
	client->output = o_stream_create_fd(fd_out, (size_t)-1, FALSE);
	o_stream_set_no_error_handling(client->output, TRUE);
	i_stream_set_name(client->input, "<imap client>");
	o_stream_set_name(client->output, "<imap client>");

	o_stream_set_flush_callback(client->output, client_output, client);

	p_array_init(&client->module_contexts, client->pool, 5);
	client->io = io_add_istream(client->input, client_input, client);
        client->last_input = ioloop_time;
	client->to_idle = timeout_add(CLIENT_IDLE_TIMEOUT_MSECS,
				      client_idle_timeout, client);

	client->command_pool =
		pool_alloconly_create(MEMPOOL_GROWING"client command", 1024*2);
	client->user = user;
	client->notify_count_changes = TRUE;
	client->notify_flag_changes = TRUE;

	mail_namespaces_set_storage_callbacks(user->namespaces,
					      &mail_storage_callbacks, client);

	client->capability_string =
		str_new(client->pool, sizeof(CAPABILITY_STRING)+64);

	if (*set->imap_capability == '\0')
		str_append(client->capability_string, CAPABILITY_STRING);
	else if (*set->imap_capability != '+') {
		explicit_capability = TRUE;
		str_append(client->capability_string, set->imap_capability);
	} else {
		str_append(client->capability_string, CAPABILITY_STRING);
		str_append_c(client->capability_string, ' ');
		str_append(client->capability_string, set->imap_capability + 1);
	}
	if (user->fuzzy_search && !explicit_capability) {
		/* Enable FUZZY capability only when it actually has
		   a chance of working */
		str_append(client->capability_string, " SEARCH=FUZZY");
	}

	mail_set = mail_user_set_get_storage_set(user);
	if (mail_set->mailbox_list_index && !explicit_capability) {
		/* NOTIFY is enabled only when mailbox list indexes are
		   enabled, although even that doesn't necessarily guarantee
		   it always */
		str_append(client->capability_string, " NOTIFY");
	}

	if (*set->imap_urlauth_host != '\0' &&
	    *mail_set->mail_attribute_dict != '\0') {
		/* Enable URLAUTH capability only when dict is
		   configured correctly */
		client_init_urlauth(client);
		if (!explicit_capability)
			str_append(client->capability_string, " URLAUTH URLAUTH=BINARY");
	}
	if (set->imap_metadata && *mail_set->mail_attribute_dict != '\0') {
		client->imap_metadata_enabled = TRUE;
		if (!explicit_capability)
			str_append(client->capability_string, " METADATA");
	}
	if (!explicit_capability && user_has_special_use_mailboxes(user)) {
		/* Advertise SPECIAL-USE only if there are actually some
		   SPECIAL-USE flags in mailbox configuration. */
		str_append(client->capability_string, " SPECIAL-USE");
	}

	ident = mail_user_get_anvil_userip_ident(client->user);
	if (ident != NULL) {
		master_service_anvil_send(master_service, t_strconcat(
			"CONNECT\t", my_pid, "\timap/", ident, "\n", NULL));
		client->anvil_sent = TRUE;
	}

	imap_client_count++;
	DLLIST_PREPEND(&imap_clients, client);
	if (hook_client_created != NULL)
		hook_client_created(&client);

	imap_refresh_proctitle();
	return client;
}