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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 | 59 | enum bus_state { |
021a1e78 | 60 | BUS_UNSET, |
de1c301e LP |
61 | BUS_OPENING, |
62 | BUS_AUTHENTICATING, | |
63 | BUS_HELLO, | |
89ffcd2a | 64 | BUS_RUNNING |
de1c301e LP |
65 | }; |
66 | ||
67 | struct sd_bus { | |
68 | unsigned n_ref; | |
69 | enum bus_state state; | |
70 | int fd; | |
71 | int message_version; | |
021a1e78 LP |
72 | |
73 | bool negotiate_fds:1; | |
de1c301e | 74 | bool can_fds:1; |
94bbf1ba | 75 | bool bus_client:1; |
2571ead1 | 76 | bool ucred_valid:1; |
de1c301e LP |
77 | |
78 | void *rbuffer; | |
79 | size_t rbuffer_size; | |
80 | ||
81 | sd_bus_message **rqueue; | |
82 | unsigned rqueue_size; | |
83 | ||
84 | sd_bus_message **wqueue; | |
85 | unsigned wqueue_size; | |
86 | size_t windex; | |
87 | ||
88 | uint64_t serial; | |
89 | ||
90 | char *unique_name; | |
91 | ||
e3017af9 | 92 | Prioq *reply_callbacks_prioq; |
de1c301e LP |
93 | Hashmap *reply_callbacks; |
94 | LIST_HEAD(struct filter_callback, filter_callbacks); | |
a652755d | 95 | Hashmap *object_callbacks; |
de1c301e LP |
96 | |
97 | union { | |
98 | struct sockaddr sa; | |
99 | struct sockaddr_un un; | |
100 | struct sockaddr_in in; | |
101 | struct sockaddr_in6 in6; | |
102 | } sockaddr; | |
103 | socklen_t sockaddr_size; | |
104 | ||
105 | sd_id128_t peer; | |
106 | ||
107 | char *address; | |
108 | unsigned address_index; | |
109 | ||
110 | int last_connect_error; | |
111 | ||
112 | struct iovec auth_iovec[3]; | |
113 | unsigned auth_index; | |
114 | size_t auth_size; | |
115 | char *auth_uid; | |
e3017af9 | 116 | usec_t auth_timeout; |
2571ead1 LP |
117 | |
118 | struct ucred ucred; | |
119 | char label[NAME_MAX]; | |
2c93b4ef LP |
120 | |
121 | int *fds; | |
122 | unsigned n_fds; | |
2fd9ae2e LP |
123 | |
124 | char *exec_path; | |
125 | char **exec_argv; | |
de1c301e | 126 | }; |
89ffcd2a LP |
127 | |
128 | static inline void bus_unrefp(sd_bus **b) { | |
129 | sd_bus_unref(*b); | |
130 | } | |
131 | ||
132 | #define _cleanup_bus_unref_ __attribute__((cleanup(bus_unrefp))) | |
b9bf7e2b | 133 | #define _cleanup_bus_error_free_ __attribute__((cleanup(sd_bus_error_free))) |
e3017af9 LP |
134 | |
135 | #define BUS_DEFAULT_TIMEOUT ((usec_t) (25 * USEC_PER_SEC)) | |
25220239 LP |
136 | |
137 | #define BUS_WQUEUE_MAX 128 | |
138 | #define BUS_RQUEUE_MAX 128 | |
139 | ||
140 | #define BUS_MESSAGE_SIZE_MAX (64*1024*1024) | |
141 | #define BUS_AUTH_SIZE_MAX (64*1024) | |
ac89bf1d | 142 | |
ed205a6b LP |
143 | #define BUS_CONTAINER_DEPTH 128 |
144 | ||
ac89bf1d LP |
145 | /* Defined by the specification as maximum size of an array in |
146 | * bytes */ | |
147 | #define BUS_ARRAY_MAX_SIZE 67108864 | |
148 | ||
2c93b4ef LP |
149 | #define BUS_FDS_MAX 1024 |
150 | ||
2fd9ae2e LP |
151 | #define BUS_EXEC_ARGV_MAX 256 |
152 | ||
ac89bf1d | 153 | bool object_path_is_valid(const char *p); |
6693860f LP |
154 | bool interface_name_is_valid(const char *p); |
155 | bool service_name_is_valid(const char *p); | |
156 | bool member_name_is_valid(const char *p); | |
157 | ||
158 | #define error_name_is_valid interface_name_is_valid | |
20902f3e LP |
159 | |
160 | int bus_ensure_running(sd_bus *bus); | |
a7e3212d LP |
161 | int bus_start_running(sd_bus *bus); |
162 | int bus_next_address(sd_bus *bus); |