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de1c301e LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | #pragma once | |
4 | ||
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2013 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | ***/ | |
23 | ||
24 | #include <sys/socket.h> | |
25 | #include <sys/un.h> | |
26 | #include <netinet/in.h> | |
27 | ||
28 | #include "hashmap.h" | |
e3017af9 | 29 | #include "prioq.h" |
de1c301e LP |
30 | #include "list.h" |
31 | #include "util.h" | |
32 | ||
33 | #include "sd-bus.h" | |
34 | #include "bus-error.h" | |
392d5b37 | 35 | #include "bus-match.h" |
de1c301e LP |
36 | |
37 | struct reply_callback { | |
52f3ba91 | 38 | sd_bus_message_handler_t callback; |
de1c301e LP |
39 | void *userdata; |
40 | usec_t timeout; | |
41 | uint64_t serial; | |
e3017af9 | 42 | unsigned prioq_idx; |
de1c301e LP |
43 | }; |
44 | ||
45 | struct filter_callback { | |
52f3ba91 | 46 | sd_bus_message_handler_t callback; |
de1c301e LP |
47 | void *userdata; |
48 | ||
7286037f LP |
49 | unsigned last_iteration; |
50 | ||
de1c301e LP |
51 | LIST_FIELDS(struct filter_callback, callbacks); |
52 | }; | |
53 | ||
a652755d | 54 | struct object_callback { |
52f3ba91 | 55 | sd_bus_message_handler_t callback; |
a652755d LP |
56 | void *userdata; |
57 | ||
58 | char *path; | |
59 | bool is_fallback; | |
7286037f LP |
60 | |
61 | unsigned last_iteration; | |
a652755d LP |
62 | }; |
63 | ||
de1c301e | 64 | enum bus_state { |
021a1e78 | 65 | BUS_UNSET, |
de1c301e LP |
66 | BUS_OPENING, |
67 | BUS_AUTHENTICATING, | |
68 | BUS_HELLO, | |
89ffcd2a | 69 | BUS_RUNNING |
de1c301e LP |
70 | }; |
71 | ||
2181a7f5 LP |
72 | enum bus_auth { |
73 | _BUS_AUTH_INVALID, | |
74 | BUS_AUTH_EXTERNAL, | |
75 | BUS_AUTH_ANONYMOUS | |
76 | }; | |
77 | ||
de1c301e LP |
78 | struct sd_bus { |
79 | unsigned n_ref; | |
80 | enum bus_state state; | |
e82c9509 | 81 | int input_fd, output_fd; |
de1c301e | 82 | int message_version; |
021a1e78 | 83 | |
6629161f | 84 | bool is_kernel:1; |
021a1e78 | 85 | bool negotiate_fds:1; |
de1c301e | 86 | bool can_fds:1; |
94bbf1ba | 87 | bool bus_client:1; |
2571ead1 | 88 | bool ucred_valid:1; |
2181a7f5 LP |
89 | bool is_server:1; |
90 | bool anonymous_auth:1; | |
15d5af81 LP |
91 | bool prefer_readv:1; |
92 | bool prefer_writev:1; | |
6807947e | 93 | bool processing:1; |
7286037f LP |
94 | bool match_callbacks_modified:1; |
95 | bool filter_callbacks_modified:1; | |
96 | bool object_callbacks_modified:1; | |
de1c301e LP |
97 | |
98 | void *rbuffer; | |
99 | size_t rbuffer_size; | |
100 | ||
101 | sd_bus_message **rqueue; | |
102 | unsigned rqueue_size; | |
103 | ||
104 | sd_bus_message **wqueue; | |
105 | unsigned wqueue_size; | |
106 | size_t windex; | |
107 | ||
108 | uint64_t serial; | |
109 | ||
110 | char *unique_name; | |
111 | ||
392d5b37 | 112 | struct bus_match_node match_callbacks; |
e3017af9 | 113 | Prioq *reply_callbacks_prioq; |
de1c301e LP |
114 | Hashmap *reply_callbacks; |
115 | LIST_HEAD(struct filter_callback, filter_callbacks); | |
a652755d | 116 | Hashmap *object_callbacks; |
de1c301e LP |
117 | |
118 | union { | |
119 | struct sockaddr sa; | |
120 | struct sockaddr_un un; | |
121 | struct sockaddr_in in; | |
122 | struct sockaddr_in6 in6; | |
123 | } sockaddr; | |
124 | socklen_t sockaddr_size; | |
125 | ||
6629161f LP |
126 | char *kernel; |
127 | ||
98178d39 | 128 | sd_id128_t server_id; |
de1c301e LP |
129 | |
130 | char *address; | |
131 | unsigned address_index; | |
132 | ||
133 | int last_connect_error; | |
134 | ||
2181a7f5 LP |
135 | enum bus_auth auth; |
136 | size_t auth_rbegin; | |
de1c301e LP |
137 | struct iovec auth_iovec[3]; |
138 | unsigned auth_index; | |
2181a7f5 | 139 | char *auth_buffer; |
e3017af9 | 140 | usec_t auth_timeout; |
2571ead1 LP |
141 | |
142 | struct ucred ucred; | |
143 | char label[NAME_MAX]; | |
2c93b4ef LP |
144 | |
145 | int *fds; | |
146 | unsigned n_fds; | |
2fd9ae2e LP |
147 | |
148 | char *exec_path; | |
149 | char **exec_argv; | |
9d373862 LP |
150 | |
151 | uint64_t hello_serial; | |
7286037f | 152 | unsigned iteration_counter; |
de1c301e | 153 | }; |
89ffcd2a LP |
154 | |
155 | static inline void bus_unrefp(sd_bus **b) { | |
156 | sd_bus_unref(*b); | |
157 | } | |
158 | ||
159 | #define _cleanup_bus_unref_ __attribute__((cleanup(bus_unrefp))) | |
b9bf7e2b | 160 | #define _cleanup_bus_error_free_ __attribute__((cleanup(sd_bus_error_free))) |
e3017af9 LP |
161 | |
162 | #define BUS_DEFAULT_TIMEOUT ((usec_t) (25 * USEC_PER_SEC)) | |
25220239 LP |
163 | |
164 | #define BUS_WQUEUE_MAX 128 | |
165 | #define BUS_RQUEUE_MAX 128 | |
166 | ||
167 | #define BUS_MESSAGE_SIZE_MAX (64*1024*1024) | |
168 | #define BUS_AUTH_SIZE_MAX (64*1024) | |
ac89bf1d | 169 | |
ed205a6b LP |
170 | #define BUS_CONTAINER_DEPTH 128 |
171 | ||
ac89bf1d LP |
172 | /* Defined by the specification as maximum size of an array in |
173 | * bytes */ | |
174 | #define BUS_ARRAY_MAX_SIZE 67108864 | |
175 | ||
2c93b4ef LP |
176 | #define BUS_FDS_MAX 1024 |
177 | ||
2fd9ae2e LP |
178 | #define BUS_EXEC_ARGV_MAX 256 |
179 | ||
ac89bf1d | 180 | bool object_path_is_valid(const char *p); |
6693860f LP |
181 | bool interface_name_is_valid(const char *p); |
182 | bool service_name_is_valid(const char *p); | |
183 | bool member_name_is_valid(const char *p); | |
184 | ||
392d5b37 LP |
185 | bool namespace_complex_pattern(const char *pattern, const char *value); |
186 | bool path_complex_pattern(const char *pattern, const char *value); | |
187 | ||
188 | bool namespace_simple_pattern(const char *pattern, const char *value); | |
189 | bool path_simple_pattern(const char *pattern, const char *value); | |
190 | ||
191 | int bus_message_type_from_string(const char *s, uint8_t *u); | |
a56f19c4 | 192 | const char *bus_message_type_to_string(uint8_t u); |
392d5b37 | 193 | |
6693860f | 194 | #define error_name_is_valid interface_name_is_valid |
20902f3e LP |
195 | |
196 | int bus_ensure_running(sd_bus *bus); | |
a7e3212d LP |
197 | int bus_start_running(sd_bus *bus); |
198 | int bus_next_address(sd_bus *bus); |