struct ostream *iostream_temp_create_sized(const char *temp_path_prefix,
enum iostream_temp_flags flags,
const char *name,
size_t max_mem_size)
{
struct temp_ostream *tstream;
struct ostream *output;
tstream = i_new(struct temp_ostream, 1);
tstream->ostream.ostream.blocking = TRUE;
tstream->ostream.sendv = o_stream_temp_sendv;
tstream->ostream.send_istream = o_stream_temp_send_istream;
tstream->ostream.write_at = o_stream_temp_write_at;
tstream->ostream.seek = o_stream_temp_seek;
tstream->ostream.iostream.close = o_stream_temp_close;
tstream->temp_path_prefix = i_strdup(temp_path_prefix);
tstream->flags = flags;
tstream->max_mem_size = max_mem_size;
tstream->buf = buffer_create_dynamic(default_pool, 8192);
tstream->fd = -1;
output = o_stream_create(&tstream->ostream, NULL, -1);
tstream->name = i_strdup(name);
if (name[0] == '\0') {
o_stream_set_name(output, t_strdup_printf(
"(temp iostream in %s)", temp_path_prefix));
} else {
o_stream_set_name(output, t_strdup_printf(
"(temp iostream in %s for %s)", temp_path_prefix, name));
}
return output;
}
static void connection_init_streams(struct connection *conn)
{
const struct connection_settings *set = &conn->list->set;
i_assert(conn->io == NULL);
i_assert(conn->input == NULL);
i_assert(conn->output == NULL);
i_assert(conn->to == NULL);
conn->version_received = set->major_version == 0;
if (set->input_max_size != 0) {
conn->input = i_stream_create_fd(conn->fd_in,
set->input_max_size, FALSE);
i_stream_set_name(conn->input, conn->name);
}
if (set->output_max_size != 0) {
conn->output = o_stream_create_fd(conn->fd_out,
set->output_max_size, FALSE);
o_stream_set_no_error_handling(conn->output, TRUE);
o_stream_set_name(conn->output, conn->name);
}
conn->io = io_add(conn->fd_in, IO_READ, *conn->list->v.input, conn);
if (set->input_idle_timeout_secs != 0) {
conn->to = timeout_add(set->input_idle_timeout_secs*1000,
connection_idle_timeout, conn);
}
if (set->major_version != 0 && !set->dont_send_version) {
o_stream_nsend_str(conn->output, t_strdup_printf(
"VERSION\t%s\t%u\t%u\n", set->service_name_out,
set->major_version, set->minor_version));
}
}
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);
}
struct ostream *o_stream_create_null(void)
{
struct ostream_private *stream;
struct ostream *output;
stream = i_new(struct ostream_private, 1);
stream->ostream.blocking = TRUE;
stream->sendv = o_stream_null_sendv;
output = o_stream_create(stream, NULL, -1);
o_stream_set_no_error_handling(output, TRUE);
o_stream_set_name(output, "(/dev/null)");
return output;
}
struct istream *
i_stream_create_rawlog(struct istream *input, const char *rawlog_path,
int rawlog_fd, enum iostream_rawlog_flags flags)
{
struct ostream *rawlog_output;
bool autoclose_fd = (flags & IOSTREAM_RAWLOG_FLAG_AUTOCLOSE) != 0;
i_assert(rawlog_path != NULL);
i_assert(rawlog_fd != -1);
rawlog_output = o_stream_create_fd(rawlog_fd, 0, autoclose_fd);
o_stream_set_name(rawlog_output,
t_strdup_printf("rawlog(%s)", rawlog_path));
return i_stream_create_rawlog_from_stream(input, rawlog_output, flags);
}
struct ostream *o_stream_create_buffer(buffer_t *buf)
{
struct buffer_ostream *bstream;
struct ostream *output;
bstream = i_new(struct buffer_ostream, 1);
bstream->ostream.max_buffer_size = (size_t)-1;
bstream->ostream.seek = o_stream_buffer_seek;
bstream->ostream.sendv = o_stream_buffer_sendv;
bstream->ostream.write_at = o_stream_buffer_write_at;
bstream->buf = buf;
output = o_stream_create(&bstream->ostream, NULL, -1);
o_stream_set_name(output, "(buffer)");
return output;
}
struct ostream *iostream_temp_create(const char *temp_path_prefix,
enum iostream_temp_flags flags)
{
struct temp_ostream *tstream;
struct ostream *output;
tstream = i_new(struct temp_ostream, 1);
tstream->ostream.sendv = o_stream_temp_sendv;
tstream->ostream.send_istream = o_stream_temp_send_istream;
tstream->ostream.write_at = o_stream_temp_write_at;
tstream->ostream.iostream.close = o_stream_temp_close;
tstream->temp_path_prefix = i_strdup(temp_path_prefix);
tstream->flags = flags;
tstream->buf = buffer_create_dynamic(default_pool, 8192);
tstream->fd = -1;
output = o_stream_create(&tstream->ostream, NULL, -1);
o_stream_set_name(output, "(temp iostream)");
return output;
}
struct client_connection *
client_connection_create(int fd, int listen_fd, bool ssl)
{
struct client_connection *conn;
const char *ip;
pool_t pool;
pool = pool_alloconly_create("doveadm client", 1024*16);
conn = p_new(pool, struct client_connection, 1);
conn->pool = pool;
conn->fd = fd;
conn->io = io_add(fd, IO_READ, client_connection_input, conn);
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);
(void)net_getsockname(fd, &conn->local_ip, &conn->local_port);
(void)net_getpeername(fd, &conn->remote_ip, &conn->remote_port);
i_stream_set_name(conn->input, net_ip2addr(&conn->remote_ip));
o_stream_set_name(conn->output, net_ip2addr(&conn->remote_ip));
ip = net_ip2addr(&conn->remote_ip);
if (ip[0] != '\0')
i_set_failure_prefix("doveadm(%s): ", ip);
if (client_connection_read_settings(conn) < 0) {
client_connection_destroy(&conn);
return NULL;
}
if (ssl) {
if (client_connection_init_ssl(conn) < 0) {
client_connection_destroy(&conn);
return NULL;
}
}
client_connection_send_auth_handshake(conn, listen_fd);
return conn;
}
int server_connection_create(struct doveadm_server *server,
struct server_connection **conn_r)
{
#define DOVEADM_SERVER_HANDSHAKE "VERSION\tdoveadm-server\t1\t0\n"
struct server_connection *conn;
pool_t pool;
pool = pool_alloconly_create("doveadm server connection", 1024*16);
conn = p_new(pool, struct server_connection, 1);
conn->pool = pool;
conn->server = server;
conn->fd = doveadm_connect_with_default_port(server->name,
doveadm_settings->doveadm_port);
net_set_nonblock(conn->fd, TRUE);
conn->io = io_add(conn->fd, IO_READ, server_connection_input, conn);
conn->input = i_stream_create_fd(conn->fd, MAX_INBUF_SIZE);
conn->output = o_stream_create_fd(conn->fd, (size_t)-1);
o_stream_set_flush_callback(conn->output, server_connection_output, conn);
i_stream_set_name(conn->input, server->name);
o_stream_set_name(conn->output, server->name);
array_append(&conn->server->connections, &conn, 1);
if (server_connection_read_settings(conn) < 0 ||
server_connection_init_ssl(conn) < 0) {
server_connection_destroy(&conn);
return -1;
}
o_stream_set_no_error_handling(conn->output, TRUE);
conn->state = SERVER_REPLY_STATE_DONE;
o_stream_nsend_str(conn->output, DOVEADM_SERVER_HANDSHAKE);
*conn_r = conn;
return 0;
}
static int
openssl_iostream_create(struct ssl_iostream_context *ctx, const char *source,
const struct ssl_iostream_settings *set,
struct istream **input, struct ostream **output,
struct ssl_iostream **iostream_r)
{
struct ssl_iostream *ssl_io;
SSL *ssl;
BIO *bio_int, *bio_ext;
int ret;
ssl = SSL_new(ctx->ssl_ctx);
if (ssl == NULL) {
i_error("SSL_new() failed: %s", openssl_iostream_error());
return -1;
}
/* BIO pairs use default buffer sizes (17 kB in OpenSSL 0.9.8e).
Each of the BIOs have one "write buffer". BIO_write() copies data
to them, while BIO_read() reads from the other BIO's write buffer
into the given buffer. The bio_int is used by OpenSSL and bio_ext
is used by this library. */
if (BIO_new_bio_pair(&bio_int, 0, &bio_ext, 0) != 1) {
i_error("BIO_new_bio_pair() failed: %s",
openssl_iostream_error());
SSL_free(ssl);
return -1;
}
ssl_io = i_new(struct ssl_iostream, 1);
ssl_io->refcount = 1;
ssl_io->ctx = ctx;
ssl_io->ssl = ssl;
ssl_io->bio_ext = bio_ext;
ssl_io->plain_input = *input;
ssl_io->plain_output = *output;
ssl_io->source = i_strdup(source);
/* bio_int will be freed by SSL_free() */
SSL_set_bio(ssl_io->ssl, bio_int, bio_int);
SSL_set_ex_data(ssl_io->ssl, dovecot_ssl_extdata_index, ssl_io);
T_BEGIN {
ret = openssl_iostream_set(ssl_io, set);
} T_END;
if (ret < 0) {
openssl_iostream_free(ssl_io);
return -1;
}
o_stream_uncork(ssl_io->plain_output);
*input = openssl_i_stream_create_ssl(ssl_io);
*output = openssl_o_stream_create_ssl(ssl_io);
i_stream_set_name(*input, t_strconcat("SSL ",
i_stream_get_name(ssl_io->plain_input), NULL));
o_stream_set_name(*output, t_strconcat("SSL ",
o_stream_get_name(ssl_io->plain_output), NULL));
if (ssl_io->plain_output->real_stream->error_handling_disabled)
o_stream_set_no_error_handling(*output, TRUE);
ssl_io->ssl_output = *output;
*iostream_r = ssl_io;
return 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;
}
