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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" | |
35 | ||
36 | struct reply_callback { | |
37 | sd_message_handler_t callback; | |
38 | void *userdata; | |
39 | usec_t timeout; | |
40 | uint64_t serial; | |
e3017af9 | 41 | unsigned prioq_idx; |
de1c301e LP |
42 | }; |
43 | ||
44 | struct filter_callback { | |
45 | sd_message_handler_t callback; | |
46 | void *userdata; | |
47 | ||
48 | LIST_FIELDS(struct filter_callback, callbacks); | |
49 | }; | |
50 | ||
a652755d LP |
51 | struct object_callback { |
52 | sd_message_handler_t callback; | |
53 | void *userdata; | |
54 | ||
55 | char *path; | |
56 | bool is_fallback; | |
57 | }; | |
58 | ||
de1c301e LP |
59 | enum bus_state { |
60 | BUS_OPENING, | |
61 | BUS_AUTHENTICATING, | |
62 | BUS_HELLO, | |
89ffcd2a | 63 | BUS_RUNNING |
de1c301e LP |
64 | }; |
65 | ||
66 | struct sd_bus { | |
67 | unsigned n_ref; | |
68 | enum bus_state state; | |
69 | int fd; | |
70 | int message_version; | |
71 | bool can_fds:1; | |
89ffcd2a | 72 | bool sent_hello:1; |
2571ead1 | 73 | bool ucred_valid:1; |
de1c301e LP |
74 | |
75 | void *rbuffer; | |
76 | size_t rbuffer_size; | |
77 | ||
78 | sd_bus_message **rqueue; | |
79 | unsigned rqueue_size; | |
80 | ||
81 | sd_bus_message **wqueue; | |
82 | unsigned wqueue_size; | |
83 | size_t windex; | |
84 | ||
85 | uint64_t serial; | |
86 | ||
87 | char *unique_name; | |
88 | ||
e3017af9 | 89 | Prioq *reply_callbacks_prioq; |
de1c301e LP |
90 | Hashmap *reply_callbacks; |
91 | LIST_HEAD(struct filter_callback, filter_callbacks); | |
a652755d | 92 | Hashmap *object_callbacks; |
de1c301e LP |
93 | |
94 | union { | |
95 | struct sockaddr sa; | |
96 | struct sockaddr_un un; | |
97 | struct sockaddr_in in; | |
98 | struct sockaddr_in6 in6; | |
99 | } sockaddr; | |
100 | socklen_t sockaddr_size; | |
101 | ||
102 | sd_id128_t peer; | |
103 | ||
104 | char *address; | |
105 | unsigned address_index; | |
106 | ||
107 | int last_connect_error; | |
108 | ||
109 | struct iovec auth_iovec[3]; | |
110 | unsigned auth_index; | |
111 | size_t auth_size; | |
112 | char *auth_uid; | |
e3017af9 | 113 | usec_t auth_timeout; |
2571ead1 LP |
114 | |
115 | struct ucred ucred; | |
116 | char label[NAME_MAX]; | |
de1c301e | 117 | }; |
89ffcd2a LP |
118 | |
119 | static inline void bus_unrefp(sd_bus **b) { | |
120 | sd_bus_unref(*b); | |
121 | } | |
122 | ||
123 | #define _cleanup_bus_unref_ __attribute__((cleanup(bus_unrefp))) | |
b9bf7e2b | 124 | #define _cleanup_bus_error_free_ __attribute__((cleanup(sd_bus_error_free))) |
e3017af9 LP |
125 | |
126 | #define BUS_DEFAULT_TIMEOUT ((usec_t) (25 * USEC_PER_SEC)) | |
25220239 LP |
127 | |
128 | #define BUS_WQUEUE_MAX 128 | |
129 | #define BUS_RQUEUE_MAX 128 | |
130 | ||
131 | #define BUS_MESSAGE_SIZE_MAX (64*1024*1024) | |
132 | #define BUS_AUTH_SIZE_MAX (64*1024) | |
ac89bf1d | 133 | |
ed205a6b LP |
134 | #define BUS_CONTAINER_DEPTH 128 |
135 | ||
ac89bf1d LP |
136 | /* Defined by the specification as maximum size of an array in |
137 | * bytes */ | |
138 | #define BUS_ARRAY_MAX_SIZE 67108864 | |
139 | ||
140 | bool object_path_is_valid(const char *p); | |
6693860f LP |
141 | bool interface_name_is_valid(const char *p); |
142 | bool service_name_is_valid(const char *p); | |
143 | bool member_name_is_valid(const char *p); | |
144 | ||
145 | #define error_name_is_valid interface_name_is_valid | |
20902f3e LP |
146 | |
147 | int bus_ensure_running(sd_bus *bus); |