diff options
Diffstat (limited to 'src/ipcpd/normal/rmt.c')
| -rw-r--r-- | src/ipcpd/normal/rmt.c | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/src/ipcpd/normal/rmt.c b/src/ipcpd/normal/rmt.c deleted file mode 100644 index fa4c7edd..00000000 --- a/src/ipcpd/normal/rmt.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * Ouroboros - Copyright (C) 2016 - * - * The Relaying and Multiplexing task - * - * Sander Vrijders <sander.vrijders@intec.ugent.be> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#define OUROBOROS_PREFIX "flow-manager" - -#include <ouroboros/config.h> -#include <ouroboros/logs.h> -#include <ouroboros/select.h> -#include <ouroboros/ipcp-dev.h> -#include <ouroboros/errno.h> -#include <ouroboros/dev.h> - -#include <stdlib.h> - -#include "rmt.h" -#include "config.h" -#include "frct.h" - -struct { - pthread_t sdu_reader; - struct flow_set * set; - uint32_t address; - - /* - * FIXME: Normally the PFF is held here, - * for now we keep 1 fd to forward a PDU on - */ - int fd; -} rmt; - -int rmt_init(uint32_t address) -{ - rmt.set = flow_set_create(); - if (rmt.set == NULL) - return -1; - - rmt.address = address; - - return 0; -} - -int rmt_fini() -{ - flow_set_destroy(rmt.set); - - return 0; -} - -void * rmt_sdu_reader(void * o) -{ - struct timespec timeout = {0, FD_UPDATE_TIMEOUT}; - struct shm_du_buff * sdb; - struct pci * pci; - - while (true) { - int fd = flow_select(rmt.set, &timeout); - if (fd == -ETIMEDOUT) - continue; - - if (fd < 0) { - LOG_ERR("Failed to get active fd."); - continue; - } - - if (ipcp_flow_read(fd, &sdb)) { - LOG_ERR("Failed to read SDU from fd %d.", fd); - continue; - } - - pci = shm_pci_des(sdb); - if (pci == NULL) { - LOG_ERR("Failed to get PCI."); - ipcp_flow_del(sdb); - continue; - } - - if (pci->dst_addr != rmt.address) { - LOG_DBG("PDU needs to be forwarded."); - - if (pci->ttl == 0) { - LOG_DBG("TTL was zero."); - ipcp_flow_del(sdb); - free(pci); - continue; - } - - if (shm_pci_dec_ttl(sdb)) { - LOG_ERR("Failed to decrease TTL."); - ipcp_flow_del(sdb); - free(pci); - continue; - } - /* - * FIXME: Dropping for now, since - * we don't have a PFF yet - */ - ipcp_flow_del(sdb); - free(pci); - continue; - } - - if (shm_pci_shrink(sdb)) { - LOG_ERR("Failed to shrink PDU."); - ipcp_flow_del(sdb); - free(pci); - continue; - } - - if (frct_rmt_post_sdu(pci, sdb)) { - LOG_ERR("Failed to hand PDU to FRCT."); - ipcp_flow_del(sdb); - free(pci); - continue; - } - } - - return (void *) 0; -} - -int rmt_dt_flow(int fd, - enum qos_cube qos) -{ - struct flow_set * set = rmt.set; - if (set == NULL) - return -1; - - flow_set_add(set, fd); - - /* FIXME: This will be removed once we have a PFF */ - rmt.fd = fd; - - return 0; -} - -int rmt_frct_write_sdu(struct pci * pci, - struct shm_du_buff * sdb) -{ - if (shm_pci_ser(sdb, pci)) { - LOG_ERR("Failed to serialize PDU."); - ipcp_flow_del(sdb); - return -1; - } - - if (ipcp_flow_write(rmt.fd, sdb)) { - LOG_ERR("Failed to write SDU to fd %d.", rmt.fd); - ipcp_flow_del(sdb); - return -1; - } - - return 0; -} - -int rmt_frct_write_buf(struct pci * pci, - buffer_t * buf) -{ - buffer_t * buffer; - - if (pci == NULL || buf == NULL || buf->data == NULL) - return -1; - - buffer = shm_pci_ser_buf(buf, pci); - if (buffer == NULL) { - LOG_ERR("Failed to serialize buffer."); - free(buf->data); - return -1; - } - - if (flow_write(rmt.fd, buffer->data, buffer->len) == -1) { - LOG_ERR("Failed to write buffer to fd."); - free(buffer); - return -1; - } - - free(buffer); - return 0; -} |