ipcpd: normal: Split connection establishment

Connection establishment was done at the same time as flow
allocation. This splits it more cleanly, and allows to re-use the DT
AE for other purposes.

1 files changed, 0 insertions, 242 deletions

diff --git a/src/ipcpd/normal/shm_pci.c b/src/ipcpd/normal/shm_pci.c
deleted file mode 100644
index e6cd1042..00000000
--- a/src/ipcpd/normal/shm_pci.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2017
- *
- * Protocol Control Information in Shared Memory Map
- *
- *    Dimitri Staessens <dimitri.staessens@ugent.be>
- *    Sander Vrijders   <sander.vrijders@ugent.be>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 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.
- */
-
-#include <ouroboros/config.h>
-#include <ouroboros/errno.h>
-#include <ouroboros/crc32.h>
-#include <ouroboros/rib.h>
-
-#include "dt_const.h"
-#include "shm_pci.h"
-#include "ribconfig.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-
-#define PDU_TYPE_SIZE 1
-#define QOS_ID_SIZE 1
-#define DEFAULT_TTL 60
-#define TTL_SIZE 1
-#define CHK_SIZE 4
-
-struct {
-        struct dt_const dtc;
-        size_t head_size;
-        size_t tail_size;
-
-        /* offsets */
-        size_t dst_addr_o;
-        size_t src_addr_o;
-        size_t dst_cep_id_o;
-        size_t src_cep_id_o;
-        size_t pdu_length_o;
-        size_t seqno_o;
-        size_t qos_id_o;
-        size_t ttl_o;
-} pci_info;
-
-
-static void ser_pci_head(uint8_t *    head,
-                         struct pci * pci)
-{
-        uint8_t ttl = DEFAULT_TTL;
-
-        assert(head);
-        assert(pci);
-
-        /* FIXME: Add check and operations for Big Endian machines */
-        memcpy(head, &pci->pdu_type, PDU_TYPE_SIZE);
-        memcpy(head + pci_info.dst_addr_o, &pci->dst_addr,
-               pci_info.dtc.addr_size);
-        memcpy(head + pci_info.src_addr_o, &pci->src_addr,
-               pci_info.dtc.addr_size);
-        memcpy(head + pci_info.dst_cep_id_o, &pci->dst_cep_id,
-               pci_info.dtc.cep_id_size);
-        memcpy(head + pci_info.src_cep_id_o, &pci->src_cep_id,
-               pci_info.dtc.cep_id_size);
-        memcpy(head + pci_info.pdu_length_o, &pci->pdu_length,
-               pci_info.dtc.pdu_length_size);
-        memcpy(head + pci_info.seqno_o, &pci->seqno,
-               pci_info.dtc.seqno_size);
-        memcpy(head + pci_info.qos_id_o, &pci->qos_id, QOS_ID_SIZE);
-        if (pci_info.dtc.has_ttl)
-                memcpy(head + pci_info.ttl_o, &ttl, TTL_SIZE);
-}
-
-int shm_pci_init(void)
-{
-        /* read dt constants from the RIB */
-        if (rib_read(BOOT_PATH "/dt/const/addr_size",
-                     &pci_info.dtc.addr_size,
-                     sizeof(pci_info.dtc.addr_size)) < 0 ||
-            rib_read(BOOT_PATH "/dt/const/cep_id_size",
-                      &pci_info.dtc.cep_id_size,
-                      sizeof(pci_info.dtc.cep_id_size)) < 0 ||
-            rib_read(BOOT_PATH "/dt/const/seqno_size",
-                      &pci_info.dtc.seqno_size,
-                     sizeof(pci_info.dtc.seqno_size)) < 0 ||
-            rib_read(BOOT_PATH "/dt/const/pdu_length_size",
-                      &pci_info.dtc.pdu_length_size,
-                      sizeof(pci_info.dtc.pdu_length_size)) < 0 ||
-            rib_read(BOOT_PATH "/dt/const/has_ttl",
-                      &pci_info.dtc.has_ttl,
-                      sizeof(pci_info.dtc.has_ttl)) < 0 ||
-            rib_read(BOOT_PATH "/dt/const/has_chk",
-                      &pci_info.dtc.has_chk,
-                      sizeof(pci_info.dtc.has_chk)) < 0 ||
-            rib_read(BOOT_PATH "/dt/const/min_pdu_size",
-                      &pci_info.dtc.min_pdu_size,
-                      sizeof(pci_info.dtc.min_pdu_size)) < 0 ||
-            rib_read(BOOT_PATH "/dt/const/max_pdu_size",
-                      &pci_info.dtc.max_pdu_size,
-                     sizeof(pci_info.dtc.max_pdu_size)) < 0)
-                return -1;
-
-        pci_info.dst_addr_o = PDU_TYPE_SIZE;
-        pci_info.src_addr_o = pci_info.dst_addr_o + pci_info.dtc.addr_size;
-        pci_info.dst_cep_id_o = pci_info.src_addr_o + pci_info.dtc.addr_size;
-        pci_info.src_cep_id_o = pci_info.dst_cep_id_o
-                + pci_info.dtc.cep_id_size;
-        pci_info.pdu_length_o = pci_info.src_cep_id_o
-                + pci_info.dtc.cep_id_size;
-        pci_info.seqno_o = pci_info.pdu_length_o + pci_info.dtc.pdu_length_size;
-        pci_info.qos_id_o = pci_info.seqno_o + pci_info.dtc.seqno_size;
-        pci_info.ttl_o = pci_info.qos_id_o + QOS_ID_SIZE;
-
-        pci_info.head_size = pci_info.ttl_o;
-
-        if (pci_info.dtc.has_ttl)
-                pci_info.head_size += TTL_SIZE;
-
-        pci_info.tail_size = pci_info.dtc.has_chk ? CHK_SIZE : 0;
-
-        return 0;
-}
-
-void shm_pci_fini(void) {
-        return;
-}
-
-int shm_pci_ser(struct shm_du_buff * sdb,
-                struct pci *         pci)
-{
-        uint8_t * head;
-        uint8_t * tail;
-
-        assert(sdb);
-        assert(pci);
-
-        head = shm_du_buff_head_alloc(sdb, pci_info.head_size);
-        if (head == NULL)
-                return -EPERM;
-
-        ser_pci_head(head, pci);
-
-        if (pci_info.dtc.has_chk) {
-                tail = shm_du_buff_tail_alloc(sdb, pci_info.tail_size);
-                if (tail == NULL) {
-                        shm_du_buff_head_release(sdb, pci_info.head_size);
-                        return -EPERM;
-                }
-
-                crc32((uint32_t *) tail, head, tail - head);
-        }
-
-        return 0;
-}
-
-buffer_t * shm_pci_ser_buf(buffer_t *   buf,
-                           struct pci * pci)
-{
-        buffer_t * buffer;
-
-        assert(buf);
-        assert(pci);
-
-        buffer = malloc(sizeof(*buffer));
-        if (buffer == NULL)
-                return NULL;
-
-        buffer->len = buf->len + pci_info.head_size +
-                pci_info.tail_size;
-
-        buffer->data = malloc(buffer->len);
-        if (buffer->data == NULL) {
-                free(buffer);
-                return NULL;
-        }
-
-        ser_pci_head(buffer->data, pci);
-        memcpy(buffer->data + pci_info.head_size,
-               buf->data, buf->len);
-
-        if (pci_info.dtc.has_chk)
-                crc32((uint32_t *) (buffer->data +
-                                    pci_info.head_size + buf->len),
-                      buffer->data,
-                      pci_info.head_size + buf->len);
-
-        return buffer;
-}
-
-void shm_pci_des(struct shm_du_buff * sdb,
-                 struct pci *         pci)
-{
-        uint8_t * head;
-
-        assert(sdb);
-        assert(pci);
-
-        head = shm_du_buff_head(sdb);
-
-        /* FIXME: Add check and operations for Big Endian machines */
-        memcpy(&pci->pdu_type, head, PDU_TYPE_SIZE);
-        memcpy(&pci->dst_addr, head + pci_info.dst_addr_o,
-               pci_info.dtc.addr_size);
-        memcpy(&pci->src_addr, head + pci_info.src_addr_o,
-               pci_info.dtc.addr_size);
-        memcpy(&pci->dst_cep_id, head + pci_info.dst_cep_id_o,
-               pci_info.dtc.cep_id_size);
-        memcpy(&pci->src_cep_id, head + pci_info.src_cep_id_o,
-               pci_info.dtc.cep_id_size);
-        memcpy(&pci->pdu_length, head + pci_info.pdu_length_o,
-               pci_info.dtc.pdu_length_size);
-        memcpy(&pci->seqno, head + pci_info.seqno_o,
-               pci_info.dtc.seqno_size);
-        memcpy(&pci->qos_id, head + pci_info.qos_id_o, QOS_ID_SIZE);
-
-        if (pci_info.dtc.has_ttl) {
-                --*(head + pci_info.ttl_o); /* decrease TTL */
-                memcpy(&pci->ttl, head + pci_info.ttl_o, TTL_SIZE);
-        } else {
-                pci->ttl = 1;
-        }
-}
-
-void shm_pci_shrink(struct shm_du_buff * sdb)
-{
-        assert(sdb);
-
-        shm_du_buff_head_release(sdb, pci_info.head_size);
-        shm_du_buff_tail_release(sdb, pci_info.tail_size);
-}