src/systemd/sd-bus.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #ifndef foosdbushfoo
   4 #define foosdbushfoo
   5
   6 /***
   7   This file is part of systemd.
   8
   9   Copyright 2013 Lennart Poettering
  10
  11   systemd is free software; you can redistribute it and/or modify it
  12   under the terms of the GNU Lesser General Public License as published by
  13   the Free Software Foundation; either version 2.1 of the License, or
  14   (at your option) any later version.
  15
  16   systemd is distributed in the hope that it will be useful, but
  17   WITHOUT ANY WARRANTY; without even the implied warranty of
  18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19   Lesser General Public License for more details.
  20
  21   You should have received a copy of the GNU Lesser General Public License
  22   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  23 ***/
  24
  25 #include <inttypes.h>
  26 #include <stdarg.h>
  27 #include <sys/types.h>
  28 #include <sys/uio.h>
  29
  30 #include "sd-id128.h"
  31 #include "sd-event.h"
  32 #include "_sd-common.h"
  33
  34 _SD_BEGIN_DECLARATIONS;
  35
  36 /* Types */
  37
  38 typedef struct sd_bus sd_bus;
  39 typedef struct sd_bus_message sd_bus_message;
  40 typedef struct sd_bus_slot sd_bus_slot;
  41 typedef struct sd_bus_creds sd_bus_creds;
  42 typedef struct sd_bus_track sd_bus_track;
  43
  44 typedef struct {
  45         const char *name;
  46         const char *message;
  47         int _need_free;
  48 } sd_bus_error;
  49
  50 typedef struct {
  51         const char* name;
  52         int code;
  53 } sd_bus_error_map;
  54
  55 /* Flags */
  56
  57 enum {
  58         SD_BUS_CREDS_PID                = 1ULL << 0,
  59         SD_BUS_CREDS_TID                = 1ULL << 1,
  60         SD_BUS_CREDS_PPID               = 1ULL << 2,
  61         SD_BUS_CREDS_UID                = 1ULL << 3,
  62         SD_BUS_CREDS_EUID               = 1ULL << 4,
  63         SD_BUS_CREDS_SUID               = 1ULL << 5,
  64         SD_BUS_CREDS_FSUID              = 1ULL << 6,
  65         SD_BUS_CREDS_GID                = 1ULL << 7,
  66         SD_BUS_CREDS_EGID               = 1ULL << 8,
  67         SD_BUS_CREDS_SGID               = 1ULL << 9,
  68         SD_BUS_CREDS_FSGID              = 1ULL << 10,
  69         SD_BUS_CREDS_SUPPLEMENTARY_GIDS = 1ULL << 11,
  70         SD_BUS_CREDS_COMM               = 1ULL << 12,
  71         SD_BUS_CREDS_TID_COMM           = 1ULL << 13,
  72         SD_BUS_CREDS_EXE                = 1ULL << 14,
  73         SD_BUS_CREDS_CMDLINE            = 1ULL << 15,
  74         SD_BUS_CREDS_CGROUP             = 1ULL << 16,
  75         SD_BUS_CREDS_UNIT               = 1ULL << 17,
  76         SD_BUS_CREDS_SLICE              = 1ULL << 18,
  77         SD_BUS_CREDS_USER_UNIT          = 1ULL << 19,
  78         SD_BUS_CREDS_USER_SLICE         = 1ULL << 20,
  79         SD_BUS_CREDS_SESSION            = 1ULL << 21,
  80         SD_BUS_CREDS_OWNER_UID          = 1ULL << 22,
  81         SD_BUS_CREDS_EFFECTIVE_CAPS     = 1ULL << 23,
  82         SD_BUS_CREDS_PERMITTED_CAPS     = 1ULL << 24,
  83         SD_BUS_CREDS_INHERITABLE_CAPS   = 1ULL << 25,
  84         SD_BUS_CREDS_BOUNDING_CAPS      = 1ULL << 26,
  85         SD_BUS_CREDS_SELINUX_CONTEXT    = 1ULL << 27,
  86         SD_BUS_CREDS_AUDIT_SESSION_ID   = 1ULL << 28,
  87         SD_BUS_CREDS_AUDIT_LOGIN_UID    = 1ULL << 29,
  88         SD_BUS_CREDS_TTY                = 1ULL << 30,
  89         SD_BUS_CREDS_UNIQUE_NAME        = 1ULL << 31,
  90         SD_BUS_CREDS_WELL_KNOWN_NAMES   = 1ULL << 32,
  91         SD_BUS_CREDS_DESCRIPTION        = 1ULL << 33,
  92         SD_BUS_CREDS_AUGMENT            = 1ULL << 63, /* special flag, if on sd-bus will augment creds struct, in a potentially race-full way. */
  93         _SD_BUS_CREDS_ALL               = (1ULL << 34) -1,
  94 };
  95
  96 enum {
  97         SD_BUS_NAME_REPLACE_EXISTING  = 1ULL << 0,
  98         SD_BUS_NAME_ALLOW_REPLACEMENT = 1ULL << 1,
  99         SD_BUS_NAME_QUEUE             = 1ULL << 2,
 100 };
 101
 102 /* Callbacks */
 103
 104 typedef int (*sd_bus_message_handler_t)(sd_bus_message *m, void *userdata, sd_bus_error *ret_error);
 105 typedef int (*sd_bus_property_get_t) (sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *ret_error);
 106 typedef int (*sd_bus_property_set_t) (sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, void *userdata, sd_bus_error *ret_error);
 107 typedef int (*sd_bus_object_find_t) (sd_bus *bus, const char *path, const char *interface, void *userdata, void **ret_found, sd_bus_error *ret_error);
 108 typedef int (*sd_bus_node_enumerator_t) (sd_bus *bus, const char *prefix, void *userdata, char ***ret_nodes, sd_bus_error *ret_error);
 109 typedef int (*sd_bus_track_handler_t) (sd_bus_track *track, void *userdata);
 110
 111 #include "sd-bus-protocol.h"
 112 #include "sd-bus-vtable.h"
 113
 114 /* Connections */
 115
 116 int sd_bus_default(sd_bus **ret);
 117 int sd_bus_default_user(sd_bus **ret);
 118 int sd_bus_default_system(sd_bus **ret);
 119
 120 int sd_bus_open(sd_bus **ret);
 121 int sd_bus_open_user(sd_bus **ret);
 122 int sd_bus_open_system(sd_bus **ret);
 123 int sd_bus_open_system_remote(sd_bus **ret, const char *host);
 124 int sd_bus_open_system_machine(sd_bus **ret, const char *machine);
 125
 126 int sd_bus_new(sd_bus **ret);
 127
 128 int sd_bus_set_address(sd_bus *bus, const char *address);
 129 int sd_bus_set_fd(sd_bus *bus, int input_fd, int output_fd);
 130 int sd_bus_set_exec(sd_bus *bus, const char *path, char *const argv[]);
 131 int sd_bus_get_address(sd_bus *bus, const char **address);
 132 int sd_bus_set_bus_client(sd_bus *bus, int b);
 133 int sd_bus_is_bus_client(sd_bus *bus);
 134 int sd_bus_set_server(sd_bus *bus, int b, sd_id128_t bus_id);
 135 int sd_bus_is_server(sd_bus *bus);
 136 int sd_bus_set_anonymous(sd_bus *bus, int b);
 137 int sd_bus_is_anonymous(sd_bus *bus);
 138 int sd_bus_set_trusted(sd_bus *bus, int b);
 139 int sd_bus_is_trusted(sd_bus *bus);
 140 int sd_bus_set_monitor(sd_bus *bus, int b);
 141 int sd_bus_is_monitor(sd_bus *bus);
 142 int sd_bus_set_description(sd_bus *bus, const char *description);
 143 int sd_bus_get_description(sd_bus *bus, const char **description);
 144 int sd_bus_negotiate_creds(sd_bus *bus, int b, uint64_t creds_mask);
 145 int sd_bus_negotiate_timestamp(sd_bus *bus, int b);
 146 int sd_bus_negotiate_fds(sd_bus *bus, int b);
 147 int sd_bus_can_send(sd_bus *bus, char type);
 148 int sd_bus_get_creds_mask(sd_bus *bus, uint64_t *creds_mask);
 149 int sd_bus_set_allow_interactive_authorization(sd_bus *bus, int b);
 150 int sd_bus_get_allow_interactive_authorization(sd_bus *bus);
 151
 152 int sd_bus_start(sd_bus *ret);
 153
 154 int sd_bus_try_close(sd_bus *bus);
 155 void sd_bus_close(sd_bus *bus);
 156
 157 sd_bus *sd_bus_ref(sd_bus *bus);
 158 sd_bus *sd_bus_unref(sd_bus *bus);
 159 sd_bus *sd_bus_flush_close_unref(sd_bus *bus);
 160
 161 void sd_bus_default_flush_close(void);
 162
 163 int sd_bus_is_open(sd_bus *bus);
 164
 165 int sd_bus_get_bus_id(sd_bus *bus, sd_id128_t *id);
 166 int sd_bus_get_scope(sd_bus *bus, const char **scope);
 167 int sd_bus_get_tid(sd_bus *bus, pid_t *tid);
 168 int sd_bus_get_owner_creds(sd_bus *bus, uint64_t creds_mask, sd_bus_creds **ret);
 169
 170 int sd_bus_send(sd_bus *bus, sd_bus_message *m, uint64_t *cookie);
 171 int sd_bus_send_to(sd_bus *bus, sd_bus_message *m, const char *destination, uint64_t *cookie);
 172 int sd_bus_call(sd_bus *bus, sd_bus_message *m, uint64_t usec, sd_bus_error *ret_error, sd_bus_message **reply);
 173 int sd_bus_call_async(sd_bus *bus, sd_bus_slot **slot, sd_bus_message *m, sd_bus_message_handler_t callback, void *userdata, uint64_t usec);
 174
 175 int sd_bus_get_fd(sd_bus *bus);
 176 int sd_bus_get_events(sd_bus *bus);
 177 int sd_bus_get_timeout(sd_bus *bus, uint64_t *timeout_usec);
 178 int sd_bus_process(sd_bus *bus, sd_bus_message **r);
 179 int sd_bus_process_priority(sd_bus *bus, int64_t max_priority, sd_bus_message **r);
 180 int sd_bus_wait(sd_bus *bus, uint64_t timeout_usec);
 181 int sd_bus_flush(sd_bus *bus);
 182
 183 sd_bus_slot* sd_bus_get_current_slot(sd_bus *bus);
 184 sd_bus_message* sd_bus_get_current_message(sd_bus *bus);
 185 sd_bus_message_handler_t sd_bus_get_current_handler(sd_bus *bus);
 186 void* sd_bus_get_current_userdata(sd_bus *bus);
 187
 188 int sd_bus_attach_event(sd_bus *bus, sd_event *e, int priority);
 189 int sd_bus_detach_event(sd_bus *bus);
 190 sd_event *sd_bus_get_event(sd_bus *bus);
 191
 192 int sd_bus_add_filter(sd_bus *bus, sd_bus_slot **slot, sd_bus_message_handler_t callback, void *userdata);
 193 int sd_bus_add_match(sd_bus *bus, sd_bus_slot **slot, const char *match, sd_bus_message_handler_t callback, void *userdata);
 194 int sd_bus_add_object(sd_bus *bus, sd_bus_slot **slot, const char *path, sd_bus_message_handler_t callback, void *userdata);
 195 int sd_bus_add_fallback(sd_bus *bus, sd_bus_slot **slot, const char *prefix, sd_bus_message_handler_t callback, void *userdata);
 196 int sd_bus_add_object_vtable(sd_bus *bus, sd_bus_slot **slot, const char *path, const char *interface, const sd_bus_vtable *vtable, void *userdata);
 197 int sd_bus_add_fallback_vtable(sd_bus *bus, sd_bus_slot **slot, const char *prefix, const char *interface, const sd_bus_vtable *vtable, sd_bus_object_find_t find, void *userdata);
 198 int sd_bus_add_node_enumerator(sd_bus *bus, sd_bus_slot **slot, const char *path, sd_bus_node_enumerator_t callback, void *userdata);
 199 int sd_bus_add_object_manager(sd_bus *bus, sd_bus_slot **slot, const char *path);
 200
 201 /* Slot object */
 202
 203 sd_bus_slot* sd_bus_slot_ref(sd_bus_slot *slot);
 204 sd_bus_slot* sd_bus_slot_unref(sd_bus_slot *slot);
 205
 206 sd_bus* sd_bus_slot_get_bus(sd_bus_slot *slot);
 207 void *sd_bus_slot_get_userdata(sd_bus_slot *slot);
 208 void *sd_bus_slot_set_userdata(sd_bus_slot *slot, void *userdata);
 209 int sd_bus_slot_set_description(sd_bus_slot *slot, const char *description);
 210 int sd_bus_slot_get_description(sd_bus_slot *slot, const char **description);
 211
 212 sd_bus_message* sd_bus_slot_get_current_message(sd_bus_slot *slot);
 213 sd_bus_message_handler_t sd_bus_slot_get_current_handler(sd_bus_slot *bus);
 214 void *sd_bus_slot_get_current_userdata(sd_bus_slot *slot);
 215
 216 /* Message object */
 217
 218 int sd_bus_message_new_signal(sd_bus *bus, sd_bus_message **m, const char *path, const char *interface, const char *member);
 219 int sd_bus_message_new_method_call(sd_bus *bus, sd_bus_message **m, const char *destination, const char *path, const char *interface, const char *member);
 220 int sd_bus_message_new_method_return(sd_bus_message *call, sd_bus_message **m);
 221 int sd_bus_message_new_method_error(sd_bus_message *call, sd_bus_message **m, const sd_bus_error *e);
 222 int sd_bus_message_new_method_errorf(sd_bus_message *call, sd_bus_message **m, const char *name, const char *format, ...) _sd_printf_(4, 5);
 223 int sd_bus_message_new_method_errno(sd_bus_message *call, sd_bus_message **m, int error, const sd_bus_error *e);
 224 int sd_bus_message_new_method_errnof(sd_bus_message *call, sd_bus_message **m, int error, const char *format, ...) _sd_printf_(4, 5);
 225
 226 sd_bus_message* sd_bus_message_ref(sd_bus_message *m);
 227 sd_bus_message* sd_bus_message_unref(sd_bus_message *m);
 228
 229 int sd_bus_message_get_type(sd_bus_message *m, uint8_t *type);
 230 int sd_bus_message_get_cookie(sd_bus_message *m, uint64_t *cookie);
 231 int sd_bus_message_get_reply_cookie(sd_bus_message *m, uint64_t *cookie);
 232 int sd_bus_message_get_priority(sd_bus_message *m, int64_t *priority);
 233
 234 int sd_bus_message_get_expect_reply(sd_bus_message *m);
 235 int sd_bus_message_get_auto_start(sd_bus_message *m);
 236 int sd_bus_message_get_allow_interactive_authorization(sd_bus_message *m);
 237
 238 const char *sd_bus_message_get_signature(sd_bus_message *m, int complete);
 239 const char *sd_bus_message_get_path(sd_bus_message *m);
 240 const char *sd_bus_message_get_interface(sd_bus_message *m);
 241 const char *sd_bus_message_get_member(sd_bus_message *m);
 242 const char *sd_bus_message_get_destination(sd_bus_message *m);
 243 const char *sd_bus_message_get_sender(sd_bus_message *m);
 244 const sd_bus_error *sd_bus_message_get_error(sd_bus_message *m);
 245 int sd_bus_message_get_errno(sd_bus_message *m);
 246
 247 int sd_bus_message_get_monotonic_usec(sd_bus_message *m, uint64_t *usec);
 248 int sd_bus_message_get_realtime_usec(sd_bus_message *m, uint64_t *usec);
 249 int sd_bus_message_get_seqnum(sd_bus_message *m, uint64_t* seqnum);
 250
 251 sd_bus* sd_bus_message_get_bus(sd_bus_message *m);
 252 sd_bus_creds *sd_bus_message_get_creds(sd_bus_message *m); /* do not unref the result */
 253
 254 int sd_bus_message_is_signal(sd_bus_message *m, const char *interface, const char *member);
 255 int sd_bus_message_is_method_call(sd_bus_message *m, const char *interface, const char *member);
 256 int sd_bus_message_is_method_error(sd_bus_message *m, const char *name);
 257 int sd_bus_message_is_empty(sd_bus_message *m);
 258 int sd_bus_message_has_signature(sd_bus_message *m, const char *signature);
 259
 260 int sd_bus_message_set_expect_reply(sd_bus_message *m, int b);
 261 int sd_bus_message_set_auto_start(sd_bus_message *m, int b);
 262 int sd_bus_message_set_allow_interactive_authorization(sd_bus_message *m, int b);
 263
 264 int sd_bus_message_set_destination(sd_bus_message *m, const char *destination);
 265 int sd_bus_message_set_priority(sd_bus_message *m, int64_t priority);
 266
 267 int sd_bus_message_append(sd_bus_message *m, const char *types, ...);
 268 int sd_bus_message_append_basic(sd_bus_message *m, char type, const void *p);
 269 int sd_bus_message_append_array(sd_bus_message *m, char type, const void *ptr, size_t size);
 270 int sd_bus_message_append_array_space(sd_bus_message *m, char type, size_t size, void **ptr);
 271 int sd_bus_message_append_array_iovec(sd_bus_message *m, char type, const struct iovec *iov, unsigned n);
 272 int sd_bus_message_append_array_memfd(sd_bus_message *m, char type, int memfd, uint64_t offset, uint64_t size);
 273 int sd_bus_message_append_string_space(sd_bus_message *m, size_t size, char **s);
 274 int sd_bus_message_append_string_iovec(sd_bus_message *m, const struct iovec *iov, unsigned n);
 275 int sd_bus_message_append_string_memfd(sd_bus_message *m, int memfd, uint64_t offset, uint64_t size);
 276 int sd_bus_message_append_strv(sd_bus_message *m, char **l);
 277 int sd_bus_message_open_container(sd_bus_message *m, char type, const char *contents);
 278 int sd_bus_message_close_container(sd_bus_message *m);
 279 int sd_bus_message_copy(sd_bus_message *m, sd_bus_message *source, int all);
 280
 281 int sd_bus_message_read(sd_bus_message *m, const char *types, ...);
 282 int sd_bus_message_read_basic(sd_bus_message *m, char type, void *p);
 283 int sd_bus_message_read_array(sd_bus_message *m, char type, const void **ptr, size_t *size);
 284 int sd_bus_message_read_strv(sd_bus_message *m, char ***l); /* free the result! */
 285 int sd_bus_message_skip(sd_bus_message *m, const char *types);
 286 int sd_bus_message_enter_container(sd_bus_message *m, char type, const char *contents);
 287 int sd_bus_message_exit_container(sd_bus_message *m);
 288 int sd_bus_message_peek_type(sd_bus_message *m, char *type, const char **contents);
 289 int sd_bus_message_verify_type(sd_bus_message *m, char type, const char *contents);
 290 int sd_bus_message_at_end(sd_bus_message *m, int complete);
 291 int sd_bus_message_rewind(sd_bus_message *m, int complete);
 292
 293 /* Bus management */
 294
 295 int sd_bus_get_unique_name(sd_bus *bus, const char **unique);
 296 int sd_bus_request_name(sd_bus *bus, const char *name, uint64_t flags);
 297 int sd_bus_release_name(sd_bus *bus, const char *name);
 298 int sd_bus_list_names(sd_bus *bus, char ***acquired, char ***activatable); /* free the results */
 299 int sd_bus_get_name_creds(sd_bus *bus, const char *name, uint64_t mask, sd_bus_creds **creds); /* unref the result! */
 300 int sd_bus_get_name_machine_id(sd_bus *bus, const char *name, sd_id128_t *machine);
 301
 302 /* Convenience calls */
 303
 304 int sd_bus_call_method(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, sd_bus_message **reply, const char *types, ...);
 305 int sd_bus_call_method_async(sd_bus *bus, sd_bus_slot **slot, const char *destination, const char *path, const char *interface, const char *member, sd_bus_message_handler_t callback, void *userdata, const char *types, ...);
 306 int sd_bus_get_property(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, sd_bus_message **reply, const char *type);
 307 int sd_bus_get_property_trivial(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, char type, void *ret_ptr);
 308 int sd_bus_get_property_string(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, char **ret); /* free the result! */
 309 int sd_bus_get_property_strv(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, char ***ret); /* free the result! */
 310 int sd_bus_set_property(sd_bus *bus, const char *destination, const char *path, const char *interface, const char *member, sd_bus_error *ret_error, const char *type, ...);
 311
 312 int sd_bus_reply_method_return(sd_bus_message *call, const char *types, ...);
 313 int sd_bus_reply_method_error(sd_bus_message *call, const sd_bus_error *e);
 314 int sd_bus_reply_method_errorf(sd_bus_message *call, const char *name, const char *format, ...) _sd_printf_(3, 4);
 315 int sd_bus_reply_method_errno(sd_bus_message *call, int error, const sd_bus_error *e);
 316 int sd_bus_reply_method_errnof(sd_bus_message *call, int error, const char *format, ...) _sd_printf_(3, 4);
 317
 318 int sd_bus_emit_signal(sd_bus *bus, const char *path, const char *interface, const char *member, const char *types, ...);
 319
 320 int sd_bus_emit_properties_changed_strv(sd_bus *bus, const char *path, const char *interface, char **names);
 321 int sd_bus_emit_properties_changed(sd_bus *bus, const char *path, const char *interface, const char *name, ...) _sd_sentinel_;
 322
 323 int sd_bus_emit_object_added(sd_bus *bus, const char *path);
 324 int sd_bus_emit_object_removed(sd_bus *bus, const char *path);
 325 int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces);
 326 int sd_bus_emit_interfaces_added(sd_bus *bus, const char *path, const char *interface, ...) _sd_sentinel_;
 327 int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces);
 328 int sd_bus_emit_interfaces_removed(sd_bus *bus, const char *path, const char *interface, ...) _sd_sentinel_;
 329
 330 int sd_bus_query_sender_creds(sd_bus_message *call, uint64_t mask, sd_bus_creds **creds);
 331 int sd_bus_query_sender_privilege(sd_bus_message *call, int capability);
 332
 333 /* Credential handling */
 334
 335 int sd_bus_creds_new_from_pid(sd_bus_creds **ret, pid_t pid, uint64_t creds_mask);
 336 sd_bus_creds *sd_bus_creds_ref(sd_bus_creds *c);
 337 sd_bus_creds *sd_bus_creds_unref(sd_bus_creds *c);
 338 uint64_t sd_bus_creds_get_mask(const sd_bus_creds *c);
 339 uint64_t sd_bus_creds_get_augmented_mask(const sd_bus_creds *c);
 340
 341 int sd_bus_creds_get_pid(sd_bus_creds *c, pid_t *pid);
 342 int sd_bus_creds_get_ppid(sd_bus_creds *c, pid_t *ppid);
 343 int sd_bus_creds_get_tid(sd_bus_creds *c, pid_t *tid);
 344 int sd_bus_creds_get_uid(sd_bus_creds *c, uid_t *uid);
 345 int sd_bus_creds_get_euid(sd_bus_creds *c, uid_t *euid);
 346 int sd_bus_creds_get_suid(sd_bus_creds *c, uid_t *suid);
 347 int sd_bus_creds_get_fsuid(sd_bus_creds *c, uid_t *fsuid);
 348 int sd_bus_creds_get_gid(sd_bus_creds *c, gid_t *gid);
 349 int sd_bus_creds_get_egid(sd_bus_creds *c, gid_t *egid);
 350 int sd_bus_creds_get_sgid(sd_bus_creds *c, gid_t *sgid);
 351 int sd_bus_creds_get_fsgid(sd_bus_creds *c, gid_t *fsgid);
 352 int sd_bus_creds_get_supplementary_gids(sd_bus_creds *c, const gid_t **gids);
 353 int sd_bus_creds_get_comm(sd_bus_creds *c, const char **comm);
 354 int sd_bus_creds_get_tid_comm(sd_bus_creds *c, const char **comm);
 355 int sd_bus_creds_get_exe(sd_bus_creds *c, const char **exe);
 356 int sd_bus_creds_get_cmdline(sd_bus_creds *c, char ***cmdline);
 357 int sd_bus_creds_get_cgroup(sd_bus_creds *c, const char **cgroup);
 358 int sd_bus_creds_get_unit(sd_bus_creds *c, const char **unit);
 359 int sd_bus_creds_get_slice(sd_bus_creds *c, const char **slice);
 360 int sd_bus_creds_get_user_unit(sd_bus_creds *c, const char **unit);
 361 int sd_bus_creds_get_user_slice(sd_bus_creds *c, const char **slice);
 362 int sd_bus_creds_get_session(sd_bus_creds *c, const char **session);
 363 int sd_bus_creds_get_owner_uid(sd_bus_creds *c, uid_t *uid);
 364 int sd_bus_creds_has_effective_cap(sd_bus_creds *c, int capability);
 365 int sd_bus_creds_has_permitted_cap(sd_bus_creds *c, int capability);
 366 int sd_bus_creds_has_inheritable_cap(sd_bus_creds *c, int capability);
 367 int sd_bus_creds_has_bounding_cap(sd_bus_creds *c, int capability);
 368 int sd_bus_creds_get_selinux_context(sd_bus_creds *c, const char **context);
 369 int sd_bus_creds_get_audit_session_id(sd_bus_creds *c, uint32_t *sessionid);
 370 int sd_bus_creds_get_audit_login_uid(sd_bus_creds *c, uid_t *loginuid);
 371 int sd_bus_creds_get_tty(sd_bus_creds *c, const char **tty);
 372 int sd_bus_creds_get_unique_name(sd_bus_creds *c, const char **name);
 373 int sd_bus_creds_get_well_known_names(sd_bus_creds *c, char ***names);
 374 int sd_bus_creds_get_description(sd_bus_creds *c, const char **name);
 375
 376 /* Error structures */
 377
 378 #define SD_BUS_ERROR_MAKE_CONST(name, message) ((const sd_bus_error) {(name), (message), 0})
 379 #define SD_BUS_ERROR_NULL SD_BUS_ERROR_MAKE_CONST(NULL, NULL)
 380
 381 void sd_bus_error_free(sd_bus_error *e);
 382 int sd_bus_error_set(sd_bus_error *e, const char *name, const char *message);
 383 int sd_bus_error_setf(sd_bus_error *e, const char *name, const char *format, ...)  _sd_printf_(3, 4);
 384 int sd_bus_error_set_const(sd_bus_error *e, const char *name, const char *message);
 385 int sd_bus_error_set_errno(sd_bus_error *e, int error);
 386 int sd_bus_error_set_errnof(sd_bus_error *e, int error, const char *format, ...) _sd_printf_(3, 4);
 387 int sd_bus_error_set_errnofv(sd_bus_error *e, int error, const char *format, va_list ap) _sd_printf_(3,0);
 388 int sd_bus_error_get_errno(const sd_bus_error *e);
 389 int sd_bus_error_copy(sd_bus_error *dest, const sd_bus_error *e);
 390 int sd_bus_error_is_set(const sd_bus_error *e);
 391 int sd_bus_error_has_name(const sd_bus_error *e, const char *name);
 392
 393 #define SD_BUS_ERROR_MAP(_name, _code)          \
 394         {                                       \
 395                 .name = _name,                  \
 396                 .code = _code,                  \
 397         }
 398 #define SD_BUS_ERROR_MAP_END                    \
 399         {                                       \
 400                 .name = NULL,                   \
 401                 .code = - 'x',                  \
 402         }
 403
 404 int sd_bus_error_add_map(const sd_bus_error_map *map);
 405
 406 /* Auxiliary macros */
 407
 408 #define SD_BUS_MESSAGE_APPEND_ID128(x) 16,                              \
 409                 (x).bytes[0],  (x).bytes[1],  (x).bytes[2],  (x).bytes[3], \
 410                 (x).bytes[4],  (x).bytes[5],  (x).bytes[6],  (x).bytes[7], \
 411                 (x).bytes[8],  (x).bytes[9],  (x).bytes[10], (x).bytes[11], \
 412                 (x).bytes[12], (x).bytes[13], (x).bytes[14], (x).bytes[15]
 413
 414 #define SD_BUS_MESSAGE_READ_ID128(x) 16,                                \
 415                 &(x).bytes[0],  &(x).bytes[1],  &(x).bytes[2],  &(x).bytes[3], \
 416                 &(x).bytes[4],  &(x).bytes[5],  &(x).bytes[6],  &(x).bytes[7], \
 417                 &(x).bytes[8],  &(x).bytes[9],  &(x).bytes[10], &(x).bytes[11], \
 418                 &(x).bytes[12], &(x).bytes[13], &(x).bytes[14], &(x).bytes[15]
 419
 420 /* Label escaping */
 421
 422 int sd_bus_path_encode(const char *prefix, const char *external_id, char **ret_path);
 423 int sd_bus_path_decode(const char *path, const char *prefix, char **ret_external_id);
 424
 425 /* Tracking peers */
 426
 427 int sd_bus_track_new(sd_bus *bus, sd_bus_track **track, sd_bus_track_handler_t handler, void *userdata);
 428 sd_bus_track* sd_bus_track_ref(sd_bus_track *track);
 429 sd_bus_track* sd_bus_track_unref(sd_bus_track *track);
 430
 431 sd_bus* sd_bus_track_get_bus(sd_bus_track *track);
 432 void *sd_bus_track_get_userdata(sd_bus_track *track);
 433 void *sd_bus_track_set_userdata(sd_bus_track *track, void *userdata);
 434
 435 int sd_bus_track_add_sender(sd_bus_track *track, sd_bus_message *m);
 436 int sd_bus_track_remove_sender(sd_bus_track *track, sd_bus_message *m);
 437 int sd_bus_track_add_name(sd_bus_track *track, const char *name);
 438 int sd_bus_track_remove_name(sd_bus_track *track, const char *name);
 439
 440 unsigned sd_bus_track_count(sd_bus_track *track);
 441 const char* sd_bus_track_contains(sd_bus_track *track, const char *names);
 442 const char* sd_bus_track_first(sd_bus_track *track);
 443 const char* sd_bus_track_next(sd_bus_track *track);
 444
 445 _SD_END_DECLARATIONS;
 446
 447 #endif