source: mainline/uspace/srv/ns/ns.c@ eb221e5

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since eb221e5 was 228e490, checked in by Martin Decky <martin@…>, 15 years ago

initial modifications for supporting declarative IPC interfaces
  • Property mode set to 100644
File size: 5.0 KB
Line 
1/*
2 * Copyright (c) 2006 Ondrej Palkovsky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup ns
30 * @{
31 */
32
33/**
34 * @file ns.c
35 * @brief Naming service for HelenOS IPC.
36 */
37
38#include <ipc/ipc.h>
39#include <ipc/services.h>
40#include <ipc/ns.h>
41#include <unistd.h>
42#include <stdio.h>
43#include <errno.h>
44#include <as.h>
45#include <ddi.h>
46#include <event.h>
47#include <macros.h>
48#include <sysinfo.h>
49#include "ns.h"
50#include "service.h"
51#include "clonable.h"
52#include "task.h"
53
54static void *clockaddr = NULL;
55static void *klogaddr = NULL;
56
57static void get_as_area(ipc_callid_t callid, ipc_call_t *call, void *faddr,
58 size_t pages, void **addr)
59{
60 if ((faddr == NULL) || (pages == 0)) {
61 ipc_answer_0(callid, ENOENT);
62 return;
63 }
64
65 if (*addr == NULL) {
66 *addr = as_get_mappable_page(pages * PAGE_SIZE);
67
68 if (*addr == NULL) {
69 ipc_answer_0(callid, ENOENT);
70 return;
71 }
72
73 if (physmem_map(faddr, *addr, pages,
74 AS_AREA_READ | AS_AREA_CACHEABLE) != 0) {
75 ipc_answer_0(callid, ENOENT);
76 return;
77 }
78 }
79
80 ipc_answer_2(callid, EOK, (sysarg_t) *addr, AS_AREA_READ);
81}
82
83static void setup_clock_area(ipc_callid_t callid, ipc_call_t *call, void **addr)
84{
85 uintptr_t faddr;
86 int err = sysinfo_get_value("clock.faddr", &faddr);
87
88 if (err != EOK)
89 ipc_answer_0(callid, err);
90
91 get_as_area(callid, call, (void *) faddr, 1, addr);
92}
93
94static void setup_klog_area(ipc_callid_t callid, ipc_call_t *call, void **addr)
95{
96 uintptr_t faddr;
97 int err = sysinfo_get_value("klog.faddr", &faddr);
98
99 if (err != EOK)
100 ipc_answer_0(callid, err);
101
102 size_t pages;
103 err = sysinfo_get_value("klog.pages", &pages);
104
105 if (err != EOK)
106 ipc_answer_0(callid, err);
107
108 get_as_area(callid, call, (void *) faddr, pages, addr);
109}
110
111int main(int argc, char **argv)
112{
113 printf(NAME ": HelenOS IPC Naming Service\n");
114
115 int rc = service_init();
116 if (rc != EOK)
117 return rc;
118
119 rc = clonable_init();
120 if (rc != EOK)
121 return rc;
122
123 rc = task_init();
124 if (rc != EOK)
125 return rc;
126
127 printf("%s: Accepting connections\n", NAME);
128
129 while (true) {
130 process_pending_conn();
131 process_pending_wait();
132
133 ipc_call_t call;
134 ipc_callid_t callid = ipc_wait_for_call(&call);
135
136 task_id_t id;
137 sysarg_t retval;
138
139 switch (IPC_GET_IMETHOD(call)) {
140 case IPC_M_SHARE_IN:
141 switch (IPC_GET_ARG3(call)) {
142 case SERVICE_MEM_REALTIME:
143 setup_clock_area(callid, &call, &clockaddr);
144 break;
145 case SERVICE_MEM_KLOG:
146 setup_klog_area(callid, &call, &klogaddr);
147 break;
148 default:
149 ipc_answer_0(callid, ENOENT);
150 }
151 continue;
152 case IPC_M_PHONE_HUNGUP:
153 retval = ns_task_disconnect(&call);
154 break;
155 case IPC_M_CONNECT_TO_ME:
156 /*
157 * Server requests service registration.
158 */
159 if (service_clonable(IPC_GET_ARG1(call))) {
160 register_clonable(IPC_GET_ARG1(call),
161 IPC_GET_ARG5(call), &call, callid);
162 continue;
163 } else {
164 retval = register_service(IPC_GET_ARG1(call),
165 IPC_GET_ARG5(call), &call);
166 }
167 break;
168 case IPC_M_CONNECT_ME_TO:
169 /*
170 * Client requests to be connected to a service.
171 */
172 if (service_clonable(IPC_GET_ARG1(call))) {
173 connect_to_clonable(IPC_GET_ARG1(call),
174 &call, callid);
175 continue;
176 } else {
177 connect_to_service(IPC_GET_ARG1(call), &call,
178 callid);
179 continue;
180 }
181 break;
182 case NS_PING:
183 retval = EOK;
184 break;
185 case NS_TASK_WAIT:
186 id = (task_id_t)
187 MERGE_LOUP32(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
188 wait_for_task(id, &call, callid);
189 continue;
190 case NS_ID_INTRO:
191 retval = ns_task_id_intro(&call);
192 break;
193 case NS_RETVAL:
194 retval = ns_task_retval(&call);
195 break;
196 default:
197 retval = ENOENT;
198 break;
199 }
200
201 if (!(callid & IPC_CALLID_NOTIFICATION))
202 ipc_answer_0(callid, retval);
203 }
204
205 /* Not reached */
206 return 0;
207}
208
209/**
210 * @}
211 */
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