static
int pscom_extoll_accept(pscom_con_t *con, int con_fd)
{
int arch = PSCOM_ARCH_EXTOLL;
psex_con_info_t *ci = psex_con_create();
psex_info_msg_t msg;
if (!ci) goto err_no_ci;
if (psex_init()) goto out_noextoll;
if (psex_con_init(ci, NULL, con)) goto dont_use; /* Initialize connection */
/* step 1: Yes, we talk extoll. */
pscom_writeall(con_fd, &arch, sizeof(arch));
/* step 2: Send Connection id's */
psex_con_get_info_msg(ci, &msg);
pscom_writeall(con_fd, &msg, sizeof(msg));
/* step 3 : recv connection id's */
if ((pscom_readall(con_fd, &msg, sizeof(msg)) != sizeof(msg)))
goto err_remote;
/* Connect */
if (psex_con_connect(ci, &msg)) {
/* ToDo: bad! How to inform the peer about the error? */
DPRINT(0, "Extoll psex_con_connect() failed!");
goto err_local;
}
pscom_extoll_con_init(con, con_fd, ci);
return 1;
/* --- */
err_local:
err_remote:
if (ci) psex_con_cleanup(ci);
if (ci) psex_con_free(ci);
return 0;
/* --- */
dont_use:
out_noextoll:
psex_con_free(ci);
err_no_ci:
arch = PSCOM_ARCH_ERROR;
pscom_writeall(con_fd, &arch, sizeof(arch));
return 0; /* Dont use extoll */
/* --- */
}
static
void pscom_extoll_handshake(pscom_con_t *con, int type, void *data, unsigned size)
{
switch (type) {
case PSCOM_INFO_ARCH_REQ: {
psex_info_msg_t msg;
psex_con_info_t *ci = psex_con_create();
con->arch.extoll.ci = ci;
con->arch.extoll.reading = 0;
if (psex_con_init(ci, NULL, con)) goto error_con_init;
/* send my connection id's */
psex_con_get_info_msg(ci, &msg);
pscom_precon_send(con->precon, PSCOM_INFO_EXTOLL_ID, &msg, sizeof(msg));
break; /* Next is PSCOM_INFO_EXTOLL_ID or PSCOM_INFO_ARCH_NEXT */
}
case PSCOM_INFO_EXTOLL_ID: {
psex_info_msg_t *msg = data;
assert(sizeof(*msg) == size);
if (psex_con_connect(con->arch.extoll.ci, msg)) goto error_con_connect;
pscom_precon_send(con->precon, PSCOM_INFO_ARCH_OK, NULL, 0);
break; /* Next is EOF or ARCH_NEXT */
}
case PSCOM_INFO_ARCH_NEXT:
/* Something failed. Cleanup. */
pscom_extoll_con_cleanup(con);
break; /* Done. Extoll failed */
case PSCOM_INFO_EOF:
pscom_extoll_init_con(con);
break; /* Done. Use Extoll */
}
return;
/* --- */
error_con_connect:
error_con_init:
pscom_extoll_con_cleanup(con);
pscom_precon_send_PSCOM_INFO_ARCH_NEXT(con->precon);
}