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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <assert.h> | |
23 | #include <stdlib.h> | |
24 | #include <pthread.h> | |
25 | #include <unistd.h> | |
26 | #include <fcntl.h> | |
27 | ||
28 | #include "log.h" | |
29 | #include "util.h" | |
30 | #include "macro.h" | |
31 | ||
32 | #include "sd-bus.h" | |
33 | #include "bus-internal.h" | |
34 | #include "bus-message.h" | |
35 | ||
36 | struct context { | |
37 | int fds[2]; | |
38 | ||
39 | bool client_negotiate_unix_fds; | |
40 | bool server_negotiate_unix_fds; | |
41 | ||
42 | bool client_anonymous_auth; | |
43 | bool server_anonymous_auth; | |
44 | }; | |
45 | ||
46 | static void *server(void *p) { | |
47 | struct context *c = p; | |
48 | sd_bus *bus = NULL; | |
49 | sd_id128_t id; | |
50 | bool quit = false; | |
51 | int r; | |
52 | ||
53 | assert_se(sd_id128_randomize(&id) >= 0); | |
54 | ||
55 | assert_se(sd_bus_new(&bus) >= 0); | |
56 | assert_se(sd_bus_set_fd(bus, c->fds[0]) >= 0); | |
57 | assert_se(sd_bus_set_server(bus, 1, id) >= 0); | |
58 | assert_se(sd_bus_set_negotiate_fds(bus, c->server_negotiate_unix_fds) >= 0); | |
59 | assert_se(sd_bus_set_anonymous(bus, c->server_anonymous_auth) >= 0); | |
60 | assert_se(sd_bus_start(bus) >= 0); | |
61 | ||
62 | while (!quit) { | |
63 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; | |
64 | ||
65 | r = sd_bus_process(bus, &m); | |
66 | if (r < 0) { | |
67 | log_error("Failed to process requests: %s", strerror(-r)); | |
68 | goto fail; | |
69 | } | |
70 | ||
71 | if (r == 0) { | |
72 | r = sd_bus_wait(bus, (uint64_t) -1); | |
73 | if (r < 0) { | |
74 | log_error("Failed to wait: %s", strerror(-r)); | |
75 | goto fail; | |
76 | } | |
77 | ||
78 | continue; | |
79 | } | |
80 | ||
81 | if (!m) | |
82 | continue; | |
83 | ||
84 | log_info("Got message! member=%s", strna(sd_bus_message_get_member(m))); | |
85 | ||
86 | if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Exit")) { | |
87 | ||
88 | assert_se((sd_bus_can_send(bus, 'h') >= 1) == (c->server_negotiate_unix_fds && c->client_negotiate_unix_fds)); | |
89 | ||
90 | r = sd_bus_message_new_method_return(bus, m, &reply); | |
91 | if (r < 0) { | |
92 | log_error("Failed to allocate return: %s", strerror(-r)); | |
93 | goto fail; | |
94 | } | |
95 | ||
96 | quit = true; | |
97 | ||
98 | } else if (sd_bus_message_is_method_call(m, NULL, NULL)) { | |
99 | const sd_bus_error e = SD_BUS_ERROR_INIT_CONST("org.freedesktop.DBus.Error.UnknownMethod", "Unknown method."); | |
100 | ||
101 | r = sd_bus_message_new_method_error(bus, m, &e, &reply); | |
102 | if (r < 0) { | |
103 | log_error("Failed to allocate return: %s", strerror(-r)); | |
104 | goto fail; | |
105 | } | |
106 | } | |
107 | ||
108 | if (reply) { | |
109 | r = sd_bus_send(bus, reply, NULL); | |
110 | if (r < 0) { | |
111 | log_error("Failed to send reply: %s", strerror(-r)); | |
112 | goto fail; | |
113 | } | |
114 | } | |
115 | } | |
116 | ||
117 | r = 0; | |
118 | ||
119 | fail: | |
120 | if (bus) { | |
121 | sd_bus_flush(bus); | |
122 | sd_bus_unref(bus); | |
123 | } | |
124 | ||
125 | return INT_TO_PTR(r); | |
126 | } | |
127 | ||
128 | static int client(struct context *c) { | |
129 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; | |
130 | _cleanup_bus_unref_ sd_bus *bus = NULL; | |
131 | sd_bus_error error = SD_BUS_ERROR_INIT; | |
132 | int r; | |
133 | ||
134 | assert_se(sd_bus_new(&bus) >= 0); | |
135 | assert_se(sd_bus_set_fd(bus, c->fds[1]) >= 0); | |
136 | assert_se(sd_bus_set_negotiate_fds(bus, c->client_negotiate_unix_fds) >= 0); | |
137 | assert_se(sd_bus_set_anonymous(bus, c->client_anonymous_auth) >= 0); | |
138 | assert_se(sd_bus_start(bus) >= 0); | |
139 | ||
140 | r = sd_bus_message_new_method_call( | |
141 | bus, | |
142 | "org.freedesktop.systemd.test", | |
143 | "/", | |
144 | "org.freedesktop.systemd.test", | |
145 | "Exit", | |
146 | &m); | |
147 | if (r < 0) { | |
148 | log_error("Failed to allocate method call: %s", strerror(-r)); | |
149 | return r; | |
150 | } | |
151 | ||
152 | r = sd_bus_send_with_reply_and_block(bus, m, 0, &error, &reply); | |
153 | if (r < 0) { | |
154 | log_error("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
155 | return r; | |
156 | } | |
157 | ||
158 | return 0; | |
159 | } | |
160 | ||
161 | static int test_one(bool client_negotiate_unix_fds, bool server_negotiate_unix_fds, | |
162 | bool client_anonymous_auth, bool server_anonymous_auth) { | |
163 | ||
164 | struct context c; | |
165 | pthread_t s; | |
166 | void *p; | |
167 | int r, q; | |
168 | ||
169 | zero(c); | |
170 | ||
171 | assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, c.fds) >= 0); | |
172 | ||
173 | c.client_negotiate_unix_fds = client_negotiate_unix_fds; | |
174 | c.server_negotiate_unix_fds = server_negotiate_unix_fds; | |
175 | c.client_anonymous_auth = client_anonymous_auth; | |
176 | c.server_anonymous_auth = server_anonymous_auth; | |
177 | ||
178 | r = pthread_create(&s, NULL, server, &c); | |
179 | if (r != 0) | |
180 | return -r; | |
181 | ||
182 | r = client(&c); | |
183 | ||
184 | q = pthread_join(s, &p); | |
185 | if (q != 0) | |
186 | return -q; | |
187 | ||
188 | if (r < 0) | |
189 | return r; | |
190 | ||
191 | if (PTR_TO_INT(p) < 0) | |
192 | return PTR_TO_INT(p); | |
193 | ||
194 | return 0; | |
195 | } | |
196 | ||
197 | int main(int argc, char *argv[]) { | |
198 | int r; | |
199 | ||
200 | r = test_one(true, true, false, false); | |
201 | assert_se(r >= 0); | |
202 | ||
203 | r = test_one(true, false, false, false); | |
204 | assert_se(r >= 0); | |
205 | ||
206 | r = test_one(false, true, false, false); | |
207 | assert_se(r >= 0); | |
208 | ||
209 | r = test_one(false, false, false, false); | |
210 | assert_se(r >= 0); | |
211 | ||
212 | r = test_one(true, true, true, true); | |
213 | assert_se(r >= 0); | |
214 | ||
215 | r = test_one(true, true, false, true); | |
216 | assert_se(r >= 0); | |
217 | ||
218 | r = test_one(true, true, true, false); | |
219 | assert_se(r == -EPERM); | |
220 | ||
221 | return EXIT_SUCCESS; | |
222 | } |