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authordimitri staessens <dimitri.staessens@intec.ugent.be>2016-04-17 12:08:49 +0200
committerdimitri staessens <dimitri.staessens@intec.ugent.be>2016-04-18 22:25:34 +0200
commit21b304b46a347772c1338b22fba6a15291bb2945 (patch)
treeeb8d0980ded5216b282a7932ecce38fd09473210 /src/ipcpd/shm_pci.c
parentd8e9019fcb56a49c6730bbe7d47e5e1cec682a2d (diff)
downloadouroboros-21b304b46a347772c1338b22fba6a15291bb2945.tar.gz
ouroboros-21b304b46a347772c1338b22fba6a15291bb2945.zip
ipcpd: initial IPC processes
Basic functions for implementation of IPC processes, and implementation of core functions of the shim IPCP over UDP. Updates to the build system to compile these IPC processes, as well as some fixes in the irmd (rudimentary capturing exit signals) and some fixes in the library, mainly relating to the messaging. Basic implementation of creation / bootstrapping / deletion of the shim UDP. Placeholders for other functions.
Diffstat (limited to 'src/ipcpd/shm_pci.c')
-rw-r--r--src/ipcpd/shm_pci.c146
1 files changed, 0 insertions, 146 deletions
diff --git a/src/ipcpd/shm_pci.c b/src/ipcpd/shm_pci.c
deleted file mode 100644
index d44e0e8f..00000000
--- a/src/ipcpd/shm_pci.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016
- *
- * Protocol Control Information in Shared Memory Map
- *
- * Dimitri Staessens <dimitri.staessens@intec.ugent.be>
- * 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.
- */
-
-#include "shm_pci.h"
-#include <malloc.h>
-#include <errno.h>
-
-#define SHM_PCI_HEAD_SIZE(a, b) a.addr_size * 2 + \
- a.cep_id_size * 2 + \
- a.pdu_length_size + \
- b.ttl_size + \
- a.seqno_size + \
- a.qos_id_size
-#define SHM_PCI_TAIL_SIZE(b) b.chk_size
-
-#define OUROBOROS_PREFIX "ipcpd/shm_pci"
-
-#include <ouroboros/logs.h>
-
-struct shm_pci {
- /* head */
- uint8_t * dst_addr;
- uint8_t * src_addr;
- uint8_t * dst_cep_id;
- uint8_t * src_cep_id;
- uint8_t * pdu_length;
- uint8_t * ttl;
- uint8_t * seqno;
- uint8_t * qos_id;
-
- uint8_t * chk;
-
- struct shm_du_buff * dub;
-
- struct ipcp_dtp_const dtpc;
- struct ipcp_dup_const dupc;
-
-};
-
-shm_pci_t * shm_pci_create(struct shm_du_buff * dub,
- const struct ipcp_dtp_const * dtpc,
- const struct ipcp_dup_const * dupc)
-{
- struct shm_pci * p;
-
- if (dub == NULL) {
- LOG_DBGF("Bogus input. Bugging out.");
- return NULL;
- }
-
- p = malloc(sizeof *p);
-
- if (p == NULL)
- return NULL;
-
- p->dub = dub;
-
- p->dtpc = *dtpc;
- p->dupc = *dupc;
-
- p->dst_addr = NULL;
- p->src_addr = NULL;
- p->dst_cep_id = NULL;
- p->src_cep_id = NULL;
- p->pdu_length = NULL;
- p->ttl = NULL;
- p->seqno = NULL;
- p->qos_id = NULL;
- p->chk = NULL;
-
- return p;
-}
-
-void shm_pci_destroy(shm_pci_t * pci)
-{
- free(pci);
-}
-
-int shm_pci_init(shm_pci_t * pci)
-{
- if (pci == NULL) {
- LOG_DBGF("Bogus input. Bugging out.");
- return -EINVAL;
- }
-
- uint8_t * pci_head = shm_du_buff_head_alloc(
- pci->dub, SHM_PCI_HEAD_SIZE(pci->dtpc, pci->dupc));
- uint8_t * pci_tail = shm_du_buff_tail_alloc(
- pci->dub, SHM_PCI_TAIL_SIZE(pci->dupc));
-
- if (pci_head == NULL) {
- LOG_DBG("Failed to allocate space for PCI at head.");
- return -ENOBUFS;
- }
-
- if (pci_tail == NULL) {
- LOG_DBG("Failed to allocate space for PCI at tail.");
- return -ENOBUFS;
- }
-
- pci->dst_addr = pci_head;
- pci->src_addr = (pci_head += pci->dtpc.addr_size);
- pci->dst_cep_id = (pci_head += pci->dtpc.addr_size);
- pci->src_cep_id = (pci_head += pci->dtpc.cep_id_size);
- pci->pdu_length = (pci_head += pci->dtpc.cep_id_size);
- pci->ttl = (pci_head += pci->dtpc.pdu_length_size);
- pci->seqno = (pci_head += pci->dupc.ttl_size);
- pci->qos_id = (pci_head += pci->dtpc.seqno_size);
-
- pci->chk = (pci_tail);
-
- return 0;
-}
-
-void shm_pci_release(shm_pci_t * pci)
-{
- if (pci == NULL)
- return;
-
- if (pci->dub == NULL)
- return;
-
- shm_du_buff_head_release(pci->dub, SHM_PCI_HEAD_SIZE(pci->dtpc,
- pci->dupc));
- shm_du_buff_tail_release(pci->dub, SHM_PCI_TAIL_SIZE(pci->dupc));
-}