lib, irmd, ipcpd: Change of IRM API

This changes the IRM API after discussions with Dimitri. The register
operation is now split into a bind and register operation. The same
for unregister; unbind and unregister. PIDs are now used as the
application instance name. A name for a PID is only provided for
scriptability in bash. It is therefore also no longer passed down to
the IPCP. Every operation on an IPCP through the IRM API has to use
the PID. Quering of the PIDs by name is possible. The IRM tool has
been updated to use this new API as well. A subcommand 'ipcp' has been
added for operations that take effect on IPCPs only.

Fixes #12

1 files changed, 200 insertions, 0 deletions

diff --git a/src/tools/irm/irm_ipcp_bootstrap.c b/src/tools/irm/irm_ipcp_bootstrap.c
new file mode 100644
index 00000000..c2b696e4
--- /dev/null
+++ b/src/tools/irm/irm_ipcp_bootstrap.c
@@ -0,0 +1,200 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Bootstrap IPC Processes
+ *
+ *    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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <arpa/inet.h>
+
+#include <ouroboros/irm.h>
+#include <ouroboros/irm_config.h>
+
+#include "irm_ops.h"
+#include "irm_utils.h"
+
+#define NORMAL "normal"
+#define SHIM_UDP "shim-udp"
+#define SHIM_ETH_LLC "shim-eth-llc"
+#define LOCAL "local"
+
+#define DEFAULT_ADDR_SIZE 4
+#define DEFAULT_CEP_ID_SIZE 2
+#define DEFAULT_PDU_LEN_SIZE 2
+#define DEFAULT_QOS_ID_SIZE 1
+#define DEFAULT_SEQ_NO_SIZE 4
+#define DEFAULT_TTL_SIZE 1
+#define DEFAULT_CHK_SIZE 2
+#define DEFAULT_MIN_PDU_SIZE 0
+#define DEFAULT_MAX_PDU_SIZE 9000
+#define DEFAULT_DDNS 0
+
+static void usage()
+{
+        /* FIXME: Add dif_config stuff */
+        printf("Usage: irm ipcp bootstrap\n"
+               "                name <ipcp name>\n"
+               "                dif <DIF name>\n"
+               "                type [TYPE]\n\n"
+               "where TYPE = {" NORMAL " " LOCAL " "
+               SHIM_UDP " " SHIM_ETH_LLC"}\n\n"
+               "if TYPE == " NORMAL "\n"
+               "                [addr <address size> (default: %d)]\n"
+               "                [cep_id <CEP-id size> (default: %d)]\n"
+               "                [pdu_len <PDU length size> (default: %d)]\n"
+               "                [qos_id <QoS-id size> (default: %d)]\n"
+               "                [seqno <sequence number size> (default: %d)]\n"
+               "                [ttl <time to live size>  (default: %d)]\n"
+               "                [chk <checksum size>  (default: %d)]\n"
+               "                [min_pdu <minimum PDU size> (default: %d)]\n"
+               "                [max_pdu <maximum PDU size> (default: %d)]\n"
+               "if TYPE == " SHIM_UDP "\n"
+               "                ip <IP address in dotted notation>\n"
+               "                [dns <DDNS IP address in dotted notation>"
+               " (default = none: %d)]\n"
+               "if TYPE == " SHIM_ETH_LLC "\n"
+               "                if_name <interface name>\n",
+               DEFAULT_ADDR_SIZE, DEFAULT_CEP_ID_SIZE,
+               DEFAULT_PDU_LEN_SIZE, DEFAULT_QOS_ID_SIZE,
+               DEFAULT_SEQ_NO_SIZE, DEFAULT_TTL_SIZE,
+               DEFAULT_CHK_SIZE, DEFAULT_MIN_PDU_SIZE,
+               DEFAULT_MAX_PDU_SIZE, DEFAULT_DDNS);
+}
+
+int do_bootstrap_ipcp(int argc, char ** argv)
+{
+        char * name = NULL;
+        struct dif_config conf;
+        uint8_t addr_size = DEFAULT_ADDR_SIZE;
+        uint8_t cep_id_size = DEFAULT_CEP_ID_SIZE;
+        uint8_t pdu_length_size = DEFAULT_PDU_LEN_SIZE;
+        uint8_t qos_id_size = DEFAULT_QOS_ID_SIZE;
+        uint8_t seqno_size = DEFAULT_SEQ_NO_SIZE;
+        uint8_t ttl_size = DEFAULT_TTL_SIZE;
+        uint8_t chk_size = DEFAULT_CHK_SIZE;
+        uint32_t min_pdu_size = DEFAULT_MIN_PDU_SIZE;
+        uint32_t max_pdu_size = DEFAULT_MAX_PDU_SIZE;
+        uint32_t ip_addr = 0;
+        uint32_t dns_addr = DEFAULT_DDNS;
+        char * ipcp_type = NULL;
+        char * dif_name = NULL;
+        char * if_name = NULL;
+        pid_t * apis;
+        ssize_t len = 0;
+        int i = 0;
+
+        while (argc > 0) {
+                if (matches(*argv, "type") == 0) {
+                        ipcp_type = *(argv + 1);
+                } else if (matches(*argv, "dif") == 0) {
+                        dif_name = *(argv + 1);
+                } else if (matches(*argv, "name") == 0) {
+                        name = *(argv + 1);
+                } else if (matches(*argv, "ip") == 0) {
+                        if (inet_pton (AF_INET, *(argv + 1), &ip_addr) != 1) {
+                                usage();
+                                return -1;
+                        }
+                } else if (matches(*argv, "dns") == 0) {
+                        if (inet_pton (AF_INET, *(argv + 1), &dns_addr) != 1) {
+                                usage();
+                                return -1;
+                        }
+                } else if (matches(*argv, "if_name") == 0) {
+                        if_name = *(argv + 1);
+                } else if (matches(*argv, "addr") == 0) {
+                        addr_size = atoi(*(argv + 1));
+                } else if (matches(*argv, "cep_id") == 0) {
+                        cep_id_size = atoi(*(argv + 1));
+                } else if (matches(*argv, "pdu_len") == 0) {
+                        pdu_length_size = atoi(*(argv + 1));
+                } else if (matches(*argv, "qos_id") == 0) {
+                        qos_id_size = atoi(*(argv + 1));
+                } else if (matches(*argv, "seqno") == 0) {
+                        seqno_size = atoi(*(argv + 1));
+                } else if (matches(*argv, "ttl") == 0) {
+                        ttl_size = atoi(*(argv + 1));
+                } else if (matches(*argv, "chk") == 0) {
+                        chk_size = atoi(*(argv + 1));
+                } else if (matches(*argv, "min_pdu") == 0) {
+                        min_pdu_size = atoi(*(argv + 1));
+                } else if (matches(*argv, "max_pdu") == 0) {
+                        max_pdu_size = atoi(*(argv + 1));
+                } else {
+                        printf("\"%s\" is unknown, try \"irm "
+                               "ipcp bootstrap\".\n", *argv);
+                        return -1;
+                }
+
+                argc -= 2;
+                argv += 2;
+        }
+
+        if (name == NULL || dif_name == NULL || ipcp_type == NULL) {
+                usage();
+                return -1;
+        }
+
+        conf.dif_name = dif_name;
+
+        if (strcmp(ipcp_type, NORMAL) == 0) {
+                conf.type = IPCP_NORMAL;
+                conf.addr_size = addr_size;
+                conf.cep_id_size = cep_id_size;
+                conf.pdu_length_size = pdu_length_size;
+                conf.qos_id_size = qos_id_size;
+                conf.seqno_size = seqno_size;
+                conf.ttl_size = ttl_size;
+                conf.chk_size = chk_size;
+                conf.min_pdu_size = min_pdu_size;
+                conf.max_pdu_size = max_pdu_size;
+        } else if (strcmp(ipcp_type, SHIM_UDP) == 0) {
+                conf.type = IPCP_SHIM_UDP;
+                if (ip_addr == 0) {
+                        usage();
+                        return -1;
+                }
+                conf.ip_addr = ip_addr;
+                conf.dns_addr = dns_addr;
+        } else if (strcmp(ipcp_type, LOCAL) == 0) {
+                conf.type = IPCP_LOCAL;
+        } else if (strcmp(ipcp_type, SHIM_ETH_LLC) == 0) {
+                conf.type = IPCP_SHIM_ETH_LLC;
+                if (if_name == NULL) {
+                        usage();
+                        return -1;
+                }
+                conf.if_name = if_name;
+        } else {
+                usage();
+                return -1;
+        }
+
+        len = irm_list_ipcps(name, &apis);
+        if (len <= 0)
+                return -1;
+
+        for (i = 0; i < len; i++)
+                if (irm_bootstrap_ipcp(apis[i], &conf))
+                        return -1;
+
+        return 0;
+}