| 1 | /*
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| 2 | * Copyright (c) 2006 Ondrej Palkovsky
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| 3 | * Copyright (c) 2015 Michal Koutny
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup ns
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| 31 | * @{
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| 32 | */
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| 33 |
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| 34 | /**
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| 35 | * @file ns.c
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| 36 | * @brief Naming service for HelenOS IPC.
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| 37 | */
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| 38 |
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| 39 | #include <abi/ipc/methods.h>
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| 40 | #include <async.h>
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| 41 | #include <ipc/ns.h>
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| 42 | #include <ipc/services.h>
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| 43 | #include <abi/ipc/interfaces.h>
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| 44 | #include <stdio.h>
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| 45 | #include <errno.h>
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| 46 | #include <ipc/taskman.h>
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| 47 | #include <taskman_noasync.h>
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| 48 |
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| 49 | #include "ns.h"
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| 50 | #include "service.h"
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| 51 |
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| 52 | static void ns_connection(ipc_call_t *icall, void *arg)
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| 53 | {
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| 54 | ipc_call_t call;
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| 55 | iface_t iface;
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| 56 | service_t service;
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| 57 |
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| 58 | iface = ipc_get_arg1(icall);
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| 59 | service = ipc_get_arg2(icall);
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| 60 | if (service != 0) {
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| 61 | /*
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| 62 | * Client requests to be connected to a service.
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| 63 | */
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| 64 | ns_service_forward(service, iface, icall);
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| 65 | return;
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| 66 | }
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| 67 |
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| 68 | async_accept_0(icall);
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| 69 |
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| 70 | while (true) {
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| 71 | ns_pending_conn_process();
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| 72 |
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| 73 | async_get_call(&call);
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| 74 | if (!ipc_get_imethod(&call))
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| 75 | break;
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| 76 |
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| 77 | errno_t retval;
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| 78 | service_t service;
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| 79 |
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| 80 | switch (ipc_get_imethod(&call)) {
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| 81 | case NS_REGISTER:
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| 82 | service = ipc_get_arg1(&call);
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| 83 | iface = ipc_get_arg2(&call);
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| 84 |
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| 85 | /*
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| 86 | * Server requests service registration.
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| 87 | */
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| 88 | retval = ns_service_register(service, iface);
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| 89 |
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| 90 | break;
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| 91 | case NS_REGISTER_BROKER:
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| 92 | service = ipc_get_arg1(&call);
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| 93 | retval = ns_service_register_broker(service);
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| 94 | break;
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| 95 | case NS_PING:
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| 96 | retval = EOK;
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| 97 | break;
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| 98 | default:
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| 99 | printf("%s: Method not supported (%" PRIun ")\n",
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| 100 | NAME, ipc_get_imethod(&call));
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| 101 | retval = ENOTSUP;
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| 102 | break;
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| 103 | }
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| 104 |
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| 105 | async_answer_0(&call, retval);
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| 106 | }
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| 107 |
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| 108 | /* TODO: Ignore so far, in future we might unregister services */
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| 109 | //(void) ns_task_disconnect(&call);
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| 110 | async_answer_0(&call, EOK);
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| 111 | }
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| 112 |
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| 113 | int main(int argc, char **argv)
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| 114 | {
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| 115 | printf("%s: HelenOS IPC Naming Service\n", NAME);
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| 116 |
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| 117 | errno_t rc = ns_service_init();
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| 118 | if (rc != EOK)
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| 119 | return rc;
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| 120 |
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| 121 | rc = taskman_intro_ns_noasync();
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| 122 | if (rc != EOK) {
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| 123 | printf("%s: not accepted by taskman (%i)\n", NAME, rc);
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| 124 | return rc;
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| 125 | }
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| 126 | task_retval_noasync(0);
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| 127 |
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| 128 | async_set_fallback_port_handler(ns_connection, NULL);
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| 129 |
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| 130 | printf("%s: Accepting connections\n", NAME);
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| 131 |
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| 132 | async_manager();
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| 133 |
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| 134 | /* Not reached */
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| 135 | return 0;
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| 136 | }
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| 137 |
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| 138 | /**
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| 139 | * @}
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| 140 | */
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