src/systemd/sd-bus.h

   1 #ifndef foosdbushfoo
   2 #define foosdbushfoo
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2013 Lennart Poettering
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include <inttypes.h>
  24 #include <stdarg.h>
  25 #include <sys/types.h>
  26 #include <sys/uio.h>
  27
  28 #include "sd-event.h"
  29 #include "sd-id128.h"
  30
  31 #include "_sd-common.h"
  32
  33 _SD_BEGIN_DECLARATIONS;
  34
  35 /* Types */
  36
  37 typedef struct sd_bus sd_bus;
  38 typedef struct sd_bus_message sd_bus_message;
  39 typedef struct sd_bus_slot sd_bus_slot;
  40 typedef struct sd_bus_creds sd_bus_creds;
  41 typedef struct sd_bus_track sd_bus_track;
  42
  43 typedef struct {
  44         const char *name;
  45         const char *message;
  46         int _need_free;
  47 } sd_bus_error;
  48
  49 typedef struct {
  50         const char* name;
  51         int code;
  52 } sd_bus_error_map;
  53
  54 /* Flags */
  55
  56 enum {
  57         SD_BUS_CREDS_PID                = 1ULL << 0,
  58         SD_BUS_CREDS_TID                = 1ULL << 1,
  59         SD_BUS_CREDS_PPID               = 1ULL << 2,
  60         SD_BUS_CREDS_UID                = 1ULL << 3,
  61         SD_BUS_CREDS_EUID               = 1ULL << 4,
  62         SD_BUS_CREDS_SUID               = 1ULL << 5,
  63         SD_BUS_CREDS_FSUID              = 1ULL << 6,
  64         SD_BUS_CREDS_GID                = 1ULL << 7,
  65         SD_BUS_CREDS_EGID               = 1ULL << 8,
  66         SD_BUS_CREDS_SGID               = 1ULL << 9,
  67         SD_BUS_CREDS_FSGID              = 1ULL << 10,
  68         SD_BUS_CREDS_SUPPLEMENTARY_GIDS = 1ULL << 11,
  69         SD_BUS_CREDS_COMM               = 1ULL << 12,
  70         SD_BUS_CREDS_TID_COMM           = 1ULL << 13,
  71         SD_BUS_CREDS_EXE                = 1ULL << 14,
  72         SD_BUS_CREDS_CMDLINE            = 1ULL << 15,
  73         SD_BUS_CREDS_CGROUP             = 1ULL << 16,
  74         SD_BUS_CREDS_UNIT               = 1ULL << 17,
  75         SD_BUS_CREDS_SLICE              = 1ULL << 18,
  76         SD_BUS_CREDS_USER_UNIT          = 1ULL << 19,
  77         SD_BUS_CREDS_USER_SLICE         = 1ULL << 20,
  78         SD_BUS_CREDS_SESSION            = 1ULL << 21,
  79         SD_BUS_CREDS_OWNER_UID          = 1ULL << 22,
  80         SD_BUS_CREDS_EFFECTIVE_CAPS     = 1ULL << 23,
  81         SD_BUS_CREDS_PERMITTED_CAPS     = 1ULL << 24,
  82         SD_BUS_CREDS_INHERITABLE_CAPS   = 1ULL << 25,
  83         SD_BUS_CREDS_BOUNDING_CAPS      = 1ULL << 26,
  84         SD_BUS_CREDS_SELINUX_CONTEXT    = 1ULL << 27,
  85         SD_BUS_CREDS_AUDIT_SESSION_ID   = 1ULL << 28,
  86         SD_BUS_CREDS_AUDIT_LOGIN_UID    = 1ULL << 29,
  87         SD_BUS_CREDS_TTY                = 1ULL << 30,
  88         SD_BUS_CREDS_UNIQUE_NAME        = 1ULL << 31,
  89         SD_BUS_CREDS_WELL_KNOWN_NAMES   = 1ULL << 32,
  90         SD_BUS_CREDS_DESCRIPTION        = 1ULL << 33,
  91         SD_BUS_CREDS_AUGMENT            = 1ULL << 63, /* special flag, if on sd-bus will augment creds struct, in a potentially race-full way. */
  92         _SD_BUS_CREDS_ALL               = (1ULL << 34) -1,
  93 };
  94
  95 enum {
  96         SD_BUS_NAME_REPLACE_EXISTING  = 1ULL << 0,
  97         SD_BUS_NAME_ALLOW_REPLACEMENT = 1ULL << 1,
  98         SD_BUS_NAME_QUEUE             = 1ULL << 2,
  99 };
 100
 101 /* Callbacks */
 102
 103 typedef int (*sd_bus_message_handler_t)(sd_bus_message *m, void *userdata, sd_bus_error *ret_error);
 104 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);
 105 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);
 106 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);
 107 typedef int (*sd_bus_node_enumerator_t) (sd_bus *bus, const char *prefix, void *userdata, char ***ret_nodes, sd_bus_error *ret_error);
 108 typedef int (*sd_bus_track_handler_t) (sd_bus_track *track, void *userdata);
 109
 110 #include "sd-bus-protocol.h"
 111 #include "sd-bus-vtable.h"
 112
 113 /* Connections */
 114
 115 int sd_bus_default(sd_bus **ret);
 116 int sd_bus_default_user(sd_bus **ret);
 117 int sd_bus_default_system(sd_bus **ret);
 118
 119 int sd_bus_open(sd_bus **ret);
 120 int sd_bus_open_user(sd_bus **ret);
 121 int sd_bus_open_system(sd_bus **ret);
 122 int sd_bus_open_system_remote(sd_bus **ret, const char *host);
 123 int sd_bus_open_system_machine(sd_bus **ret, const char *machine);
 124
 125 int sd_bus_new(sd_bus **ret);
 126
 127 int sd_bus_set_address(sd_bus *bus, const char *address);
 128 int sd_bus_set_fd(sd_bus *bus, int input_fd, int output_fd);
 129 int sd_bus_set_exec(sd_bus *bus, const char *path, char *const argv[]);
 130 int sd_bus_get_address(sd_bus *bus, const char **address);
 131 int sd_bus_set_bus_client(sd_bus *bus, int b);
 132 int sd_bus_is_bus_client(sd_bus *bus);
 133 int sd_bus_set_server(sd_bus *bus, int b, sd_id128_t bus_id);
 134 int sd_bus_is_server(sd_bus *bus);
 135 int sd_bus_set_anonymous(sd_bus *bus, int b);
 136 int sd_bus_is_anonymous(sd_bus *bus);
 137 int sd_bus_set_trusted(sd_bus *bus, int b);
 138 int sd_bus_is_trusted(sd_bus *bus);
 139 int sd_bus_set_monitor(sd_bus *bus, int b);
 140 int sd_bus_is_monitor(sd_bus *bus);
 141 int sd_bus_set_description(sd_bus *bus, const char *description);
 142 int sd_bus_get_description(sd_bus *bus, const char **description);
 143 int sd_bus_negotiate_creds(sd_bus *bus, int b, uint64_t creds_mask);
 144 int sd_bus_negotiate_timestamp(sd_bus *bus, int b);
 145 int sd_bus_negotiate_fds(sd_bus *bus, int b);
 146 int sd_bus_can_send(sd_bus *bus, char type);
 147 int sd_bus_get_creds_mask(sd_bus *bus, uint64_t *creds_mask);
 148 int sd_bus_set_allow_interactive_authorization(sd_bus *bus, int b);
 149 int sd_bus_get_allow_interactive_authorization(sd_bus *bus);
 150
 151 int sd_bus_start(sd_bus *ret);
 152
 153 int sd_bus_try_close(sd_bus *bus);
 154 void sd_bus_close(sd_bus *bus);
 155
 156 sd_bus *sd_bus_ref(sd_bus *bus);
 157 sd_bus *sd_bus_unref(sd_bus *bus);
 158 sd_bus *sd_bus_flush_close_unref(sd_bus *bus);
 159
 160 void sd_bus_default_flush_close(void);
 161
 162 int sd_bus_is_open(sd_bus *bus);
 163
 164 int sd_bus_get_bus_id(sd_bus *bus, sd_id128_t *id);
 165 int sd_bus_get_scope(sd_bus *bus, const char **scope);
 166 int sd_bus_get_tid(sd_bus *bus, pid_t *tid);
 167 int sd_bus_get_owner_creds(sd_bus *bus, uint64_t creds_mask, sd_bus_creds **ret);
 168
 169 int sd_bus_send(sd_bus *bus, sd_bus_message *m, uint64_t *cookie);
 170 int sd_bus_send_to(sd_bus *bus, sd_bus_message *m, const char *destination, uint64_t *cookie);
 171 int sd_bus_call(sd_bus *bus, sd_bus_message *m, uint64_t usec, sd_bus_error *ret_error, sd_bus_message **reply);
 172 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);
 173
 174 int sd_bus_get_fd(sd_bus *bus);
 175 int sd_bus_get_events(sd_bus *bus);
 176 int sd_bus_get_timeout(sd_bus *bus, uint64_t *timeout_usec);
 177 int sd_bus_process(sd_bus *bus, sd_bus_message **r);
 178 int sd_bus_process_priority(sd_bus *bus, int64_t max_priority, sd_bus_message **r);
 179 int sd_bus_wait(sd_bus *bus, uint64_t timeout_usec);
 180 int sd_bus_flush(sd_bus *bus);
 181
 182 sd_bus_slot* sd_bus_get_current_slot(sd_bus *bus);
 183 sd_bus_message* sd_bus_get_current_message(sd_bus *bus);
 184 sd_bus_message_handler_t sd_bus_get_current_handler(sd_bus *bus);
 185 void* sd_bus_get_current_userdata(sd_bus *bus);
 186
 187 int sd_bus_attach_event(sd_bus *bus, sd_event *e, int priority);
 188 int sd_bus_detach_event(sd_bus *bus);
 189 sd_event *sd_bus_get_event(sd_bus *bus);
 190
 191 int sd_bus_add_filter(sd_bus *bus, sd_bus_slot **slot, sd_bus_message_handler_t callback, void *userdata);
 192 int sd_bus_add_match(sd_bus *bus, sd_bus_slot **slot, const char *match, sd_bus_message_handler_t callback, void *userdata);
 193 int sd_bus_add_object(sd_bus *bus, sd_bus_slot **slot, const char *path, sd_bus_message_handler_t callback, void *userdata);
 194 int sd_bus_add_fallback(sd_bus *bus, sd_bus_slot **slot, const char *prefix, sd_bus_message_handler_t callback, void *userdata);
 195 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);
 196 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);
 197 int sd_bus_add_node_enumerator(sd_bus *bus, sd_bus_slot **slot, const char *path, sd_bus_node_enumerator_t callback, void *userdata);
 198 int sd_bus_add_object_manager(sd_bus *bus, sd_bus_slot **slot, const char *path);
 199
 200 /* Slot object */
 201
 202 sd_bus_slot* sd_bus_slot_ref(sd_bus_slot *slot);
 203 sd_bus_slot* sd_bus_slot_unref(sd_bus_slot *slot);
 204
 205 sd_bus* sd_bus_slot_get_bus(sd_bus_slot *slot);
 206 void *sd_bus_slot_get_userdata(sd_bus_slot *slot);
 207 void *sd_bus_slot_set_userdata(sd_bus_slot *slot, void *userdata);
 208 int sd_bus_slot_set_description(sd_bus_slot *slot, const char *description);
 209 int sd_bus_slot_get_description(sd_bus_slot *slot, const char **description);
 210
 211 sd_bus_message* sd_bus_slot_get_current_message(sd_bus_slot *slot);
 212 sd_bus_message_handler_t sd_bus_slot_get_current_handler(sd_bus_slot *bus);
 213 void *sd_bus_slot_get_current_userdata(sd_bus_slot *slot);
 214
 215 /* Message object */
 216
 217 int sd_bus_message_new_signal(sd_bus *bus, sd_bus_message **m, const char *path, const char *interface, const char *member);
 218 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);
 219 int sd_bus_message_new_method_return(sd_bus_message *call, sd_bus_message **m);
 220 int sd_bus_message_new_method_error(sd_bus_message *call, sd_bus_message **m, const sd_bus_error *e);
 221 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);
 222 int sd_bus_message_new_method_errno(sd_bus_message *call, sd_bus_message **m, int error, const sd_bus_error *e);
 223 int sd_bus_message_new_method_errnof(sd_bus_message *call, sd_bus_message **m, int error, const char *format, ...) _sd_printf_(4, 5);
 224
 225 sd_bus_message* sd_bus_message_ref(sd_bus_message *m);
 226 sd_bus_message* sd_bus_message_unref(sd_bus_message *m);
 227
 228 int sd_bus_message_get_type(sd_bus_message *m, uint8_t *type);
 229 int sd_bus_message_get_cookie(sd_bus_message *m, uint64_t *cookie);
 230 int sd_bus_message_get_reply_cookie(sd_bus_message *m, uint64_t *cookie);
 231 int sd_bus_message_get_priority(sd_bus_message *m, int64_t *priority);
 232
 233 int sd_bus_message_get_expect_reply(sd_bus_message *m);
 234 int sd_bus_message_get_auto_start(sd_bus_message *m);
 235 int sd_bus_message_get_allow_interactive_authorization(sd_bus_message *m);
 236
 237 const char *sd_bus_message_get_signature(sd_bus_message *m, int complete);
 238 const char *sd_bus_message_get_path(sd_bus_message *m);
 239 const char *sd_bus_message_get_interface(sd_bus_message *m);
 240 const char *sd_bus_message_get_member(sd_bus_message *m);
 241 const char *sd_bus_message_get_destination(sd_bus_message *m);
 242 const char *sd_bus_message_get_sender(sd_bus_message *m);
 243 const sd_bus_error *sd_bus_message_get_error(sd_bus_message *m);
 244 int sd_bus_message_get_errno(sd_bus_message *m);
 245
 246 int sd_bus_message_get_monotonic_usec(sd_bus_message *m, uint64_t *usec);
 247 int sd_bus_message_get_realtime_usec(sd_bus_message *m, uint64_t *usec);
 248 int sd_bus_message_get_seqnum(sd_bus_message *m, uint64_t* seqnum);
 249
 250 sd_bus* sd_bus_message_get_bus(sd_bus_message *m);
 251 sd_bus_creds *sd_bus_message_get_creds(sd_bus_message *m); /* do not unref the result */
 252
 253 int sd_bus_message_is_signal(sd_bus_message *m, const char *interface, const char *member);
 254 int sd_bus_message_is_method_call(sd_bus_message *m, const char *interface, const char *member);
 255 int sd_bus_message_is_method_error(sd_bus_message *m, const char *name);
 256 int sd_bus_message_is_empty(sd_bus_message *m);
 257 int sd_bus_message_has_signature(sd_bus_message *m, const char *signature);
 258
 259 int sd_bus_message_set_expect_reply(sd_bus_message *m, int b);
 260 int sd_bus_message_set_auto_start(sd_bus_message *m, int b);
 261 int sd_bus_message_set_allow_interactive_authorization(sd_bus_message *m, int b);
 262
 263 int sd_bus_message_set_destination(sd_bus_message *m, const char *destination);
 264 int sd_bus_message_set_priority(sd_bus_message *m, int64_t priority);
 265
 266 int sd_bus_message_append(sd_bus_message *m, const char *types, ...);
 267 int sd_bus_message_append_basic(sd_bus_message *m, char type, const void *p);
 268 int sd_bus_message_append_array(sd_bus_message *m, char type, const void *ptr, size_t size);
 269 int sd_bus_message_append_array_space(sd_bus_message *m, char type, size_t size, void **ptr);
 270 int sd_bus_message_append_array_iovec(sd_bus_message *m, char type, const struct iovec *iov, unsigned n);
 271 int sd_bus_message_append_array_memfd(sd_bus_message *m, char type, int memfd, uint64_t offset, uint64_t size);
 272 int sd_bus_message_append_string_space(sd_bus_message *m, size_t size, char **s);
 273 int sd_bus_message_append_string_iovec(sd_bus_message *m, const struct iovec *iov, unsigned n);
 274 int sd_bus_message_append_string_memfd(sd_bus_message *m, int memfd, uint64_t offset, uint64_t size);
 275 int sd_bus_message_append_strv(sd_bus_message *m, char **l);
 276 int sd_bus_message_open_container(sd_bus_message *m, char type, const char *contents);
 277 int sd_bus_message_close_container(sd_bus_message *m);
 278 int sd_bus_message_copy(sd_bus_message *m, sd_bus_message *source, int all);
 279
 280 int sd_bus_message_read(sd_bus_message *m, const char *types, ...);
 281 int sd_bus_message_read_basic(sd_bus_message *m, char type, void *p);
 282 int sd_bus_message_read_array(sd_bus_message *m, char type, const void **ptr, size_t *size);
 283 int sd_bus_message_read_strv(sd_bus_message *m, char ***l); /* free the result! */
 284 int sd_bus_message_skip(sd_bus_message *m, const char *types);
 285 int sd_bus_message_enter_container(sd_bus_message *m, char type, const char *contents);
 286 int sd_bus_message_exit_container(sd_bus_message *m);
 287 int sd_bus_message_peek_type(sd_bus_message *m, char *type, const char **contents);
 288 int sd_bus_message_verify_type(sd_bus_message *m, char type, const char *contents);
 289 int sd_bus_message_at_end(sd_bus_message *m, int complete);
 290 int sd_bus_message_rewind(sd_bus_message *m, int complete);
 291
 292 /* Bus management */
 293
 294 int sd_bus_get_unique_name(sd_bus *bus, const char **unique);
 295 int sd_bus_request_name(sd_bus *bus, const char *name, uint64_t flags);
 296 int sd_bus_release_name(sd_bus *bus, const char *name);
 297 int sd_bus_list_names(sd_bus *bus, char ***acquired, char ***activatable); /* free the results */
 298 int sd_bus_get_name_creds(sd_bus *bus, const char *name, uint64_t mask, sd_bus_creds **creds); /* unref the result! */
 299 int sd_bus_get_name_machine_id(sd_bus *bus, const char *name, sd_id128_t *machine);
 300
 301 /* Convenience calls */
 302
 303 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, ...);
 304 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, ...);
 305 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);
 306 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);
 307 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! */
 308 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! */
 309 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, ...);
 310
 311 int sd_bus_reply_method_return(sd_bus_message *call, const char *types, ...);
 312 int sd_bus_reply_method_error(sd_bus_message *call, const sd_bus_error *e);
 313 int sd_bus_reply_method_errorf(sd_bus_message *call, const char *name, const char *format, ...) _sd_printf_(3, 4);
 314 int sd_bus_reply_method_errno(sd_bus_message *call, int error, const sd_bus_error *e);
 315 int sd_bus_reply_method_errnof(sd_bus_message *call, int error, const char *format, ...) _sd_printf_(3, 4);
 316
 317 int sd_bus_emit_signal(sd_bus *bus, const char *path, const char *interface, const char *member, const char *types, ...);
 318
 319 int sd_bus_emit_properties_changed_strv(sd_bus *bus, const char *path, const char *interface, char **names);
 320 int sd_bus_emit_properties_changed(sd_bus *bus, const char *path, const char *interface, const char *name, ...) _sd_sentinel_;
 321
 322 int sd_bus_emit_object_added(sd_bus *bus, const char *path);
 323 int sd_bus_emit_object_removed(sd_bus *bus, const char *path);
 324 int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces);
 325 int sd_bus_emit_interfaces_added(sd_bus *bus, const char *path, const char *interface, ...) _sd_sentinel_;
 326 int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces);
 327 int sd_bus_emit_interfaces_removed(sd_bus *bus, const char *path, const char *interface, ...) _sd_sentinel_;
 328
 329 int sd_bus_query_sender_creds(sd_bus_message *call, uint64_t mask, sd_bus_creds **creds);
 330 int sd_bus_query_sender_privilege(sd_bus_message *call, int capability);
 331
 332 /* Credential handling */
 333
 334 int sd_bus_creds_new_from_pid(sd_bus_creds **ret, pid_t pid, uint64_t creds_mask);
 335 sd_bus_creds *sd_bus_creds_ref(sd_bus_creds *c);
 336 sd_bus_creds *sd_bus_creds_unref(sd_bus_creds *c);
 337 uint64_t sd_bus_creds_get_mask(const sd_bus_creds *c);
 338 uint64_t sd_bus_creds_get_augmented_mask(const sd_bus_creds *c);
 339
 340 int sd_bus_creds_get_pid(sd_bus_creds *c, pid_t *pid);
 341 int sd_bus_creds_get_ppid(sd_bus_creds *c, pid_t *ppid);
 342 int sd_bus_creds_get_tid(sd_bus_creds *c, pid_t *tid);
 343 int sd_bus_creds_get_uid(sd_bus_creds *c, uid_t *uid);
 344 int sd_bus_creds_get_euid(sd_bus_creds *c, uid_t *euid);
 345 int sd_bus_creds_get_suid(sd_bus_creds *c, uid_t *suid);
 346 int sd_bus_creds_get_fsuid(sd_bus_creds *c, uid_t *fsuid);
 347 int sd_bus_creds_get_gid(sd_bus_creds *c, gid_t *gid);
 348 int sd_bus_creds_get_egid(sd_bus_creds *c, gid_t *egid);
 349 int sd_bus_creds_get_sgid(sd_bus_creds *c, gid_t *sgid);
 350 int sd_bus_creds_get_fsgid(sd_bus_creds *c, gid_t *fsgid);
 351 int sd_bus_creds_get_supplementary_gids(sd_bus_creds *c, const gid_t **gids);
 352 int sd_bus_creds_get_comm(sd_bus_creds *c, const char **comm);
 353 int sd_bus_creds_get_tid_comm(sd_bus_creds *c, const char **comm);
 354 int sd_bus_creds_get_exe(sd_bus_creds *c, const char **exe);
 355 int sd_bus_creds_get_cmdline(sd_bus_creds *c, char ***cmdline);
 356 int sd_bus_creds_get_cgroup(sd_bus_creds *c, const char **cgroup);
 357 int sd_bus_creds_get_unit(sd_bus_creds *c, const char **unit);
 358 int sd_bus_creds_get_slice(sd_bus_creds *c, const char **slice);
 359 int sd_bus_creds_get_user_unit(sd_bus_creds *c, const char **unit);
 360 int sd_bus_creds_get_user_slice(sd_bus_creds *c, const char **slice);
 361 int sd_bus_creds_get_session(sd_bus_creds *c, const char **session);
 362 int sd_bus_creds_get_owner_uid(sd_bus_creds *c, uid_t *uid);
 363 int sd_bus_creds_has_effective_cap(sd_bus_creds *c, int capability);
 364 int sd_bus_creds_has_permitted_cap(sd_bus_creds *c, int capability);
 365 int sd_bus_creds_has_inheritable_cap(sd_bus_creds *c, int capability);
 366 int sd_bus_creds_has_bounding_cap(sd_bus_creds *c, int capability);
 367 int sd_bus_creds_get_selinux_context(sd_bus_creds *c, const char **context);
 368 int sd_bus_creds_get_audit_session_id(sd_bus_creds *c, uint32_t *sessionid);
 369 int sd_bus_creds_get_audit_login_uid(sd_bus_creds *c, uid_t *loginuid);
 370 int sd_bus_creds_get_tty(sd_bus_creds *c, const char **tty);
 371 int sd_bus_creds_get_unique_name(sd_bus_creds *c, const char **name);
 372 int sd_bus_creds_get_well_known_names(sd_bus_creds *c, char ***names);
 373 int sd_bus_creds_get_description(sd_bus_creds *c, const char **name);
 374
 375 /* Error structures */
 376
 377 #define SD_BUS_ERROR_MAKE_CONST(name, message) ((const sd_bus_error) {(name), (message), 0})
 378 #define SD_BUS_ERROR_NULL SD_BUS_ERROR_MAKE_CONST(NULL, NULL)
 379
 380 void sd_bus_error_free(sd_bus_error *e);
 381 int sd_bus_error_set(sd_bus_error *e, const char *name, const char *message);
 382 int sd_bus_error_setf(sd_bus_error *e, const char *name, const char *format, ...)  _sd_printf_(3, 4);
 383 int sd_bus_error_set_const(sd_bus_error *e, const char *name, const char *message);
 384 int sd_bus_error_set_errno(sd_bus_error *e, int error);
 385 int sd_bus_error_set_errnof(sd_bus_error *e, int error, const char *format, ...) _sd_printf_(3, 4);
 386 int sd_bus_error_set_errnofv(sd_bus_error *e, int error, const char *format, va_list ap) _sd_printf_(3,0);
 387 int sd_bus_error_get_errno(const sd_bus_error *e);
 388 int sd_bus_error_copy(sd_bus_error *dest, const sd_bus_error *e);
 389 int sd_bus_error_is_set(const sd_bus_error *e);
 390 int sd_bus_error_has_name(const sd_bus_error *e, const char *name);
 391
 392 #define SD_BUS_ERROR_MAP(_name, _code)          \
 393         {                                       \
 394                 .name = _name,                  \
 395                 .code = _code,                  \
 396         }
 397 #define SD_BUS_ERROR_MAP_END                    \
 398         {                                       \
 399                 .name = NULL,                   \
 400                 .code = - 'x',                  \
 401         }
 402
 403 int sd_bus_error_add_map(const sd_bus_error_map *map);
 404
 405 /* Auxiliary macros */
 406
 407 #define SD_BUS_MESSAGE_APPEND_ID128(x) 16,                              \
 408                 (x).bytes[0],  (x).bytes[1],  (x).bytes[2],  (x).bytes[3], \
 409                 (x).bytes[4],  (x).bytes[5],  (x).bytes[6],  (x).bytes[7], \
 410                 (x).bytes[8],  (x).bytes[9],  (x).bytes[10], (x).bytes[11], \
 411                 (x).bytes[12], (x).bytes[13], (x).bytes[14], (x).bytes[15]
 412
 413 #define SD_BUS_MESSAGE_READ_ID128(x) 16,                                \
 414                 &(x).bytes[0],  &(x).bytes[1],  &(x).bytes[2],  &(x).bytes[3], \
 415                 &(x).bytes[4],  &(x).bytes[5],  &(x).bytes[6],  &(x).bytes[7], \
 416                 &(x).bytes[8],  &(x).bytes[9],  &(x).bytes[10], &(x).bytes[11], \
 417                 &(x).bytes[12], &(x).bytes[13], &(x).bytes[14], &(x).bytes[15]
 418
 419 /* Label escaping */
 420
 421 int sd_bus_path_encode(const char *prefix, const char *external_id, char **ret_path);
 422 int sd_bus_path_encode_many(char **out, const char *path_template, ...);
 423 int sd_bus_path_decode(const char *path, const char *prefix, char **ret_external_id);
 424 int sd_bus_path_decode_many(const char *path, const char *path_template, ...);
 425
 426 /* Tracking peers */
 427
 428 int sd_bus_track_new(sd_bus *bus, sd_bus_track **track, sd_bus_track_handler_t handler, void *userdata);
 429 sd_bus_track* sd_bus_track_ref(sd_bus_track *track);
 430 sd_bus_track* sd_bus_track_unref(sd_bus_track *track);
 431
 432 sd_bus* sd_bus_track_get_bus(sd_bus_track *track);
 433 void *sd_bus_track_get_userdata(sd_bus_track *track);
 434 void *sd_bus_track_set_userdata(sd_bus_track *track, void *userdata);
 435
 436 int sd_bus_track_add_sender(sd_bus_track *track, sd_bus_message *m);
 437 int sd_bus_track_remove_sender(sd_bus_track *track, sd_bus_message *m);
 438 int sd_bus_track_add_name(sd_bus_track *track, const char *name);
 439 int sd_bus_track_remove_name(sd_bus_track *track, const char *name);
 440
 441 unsigned sd_bus_track_count(sd_bus_track *track);
 442 const char* sd_bus_track_contains(sd_bus_track *track, const char *names);
 443 const char* sd_bus_track_first(sd_bus_track *track);
 444 const char* sd_bus_track_next(sd_bus_track *track);
 445
 446 /* Define helpers so that __attribute__((cleanup(sd_bus_unrefp))) and similar may be used. */
 447 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus, sd_bus_unref);
 448 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus, sd_bus_flush_close_unref);
 449 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus_slot, sd_bus_slot_unref);
 450 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus_message, sd_bus_message_unref);
 451 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus_creds, sd_bus_creds_unref);
 452 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_bus_track, sd_bus_track_unref);
 453
 454 _SD_END_DECLARATIONS;
 455
 456 #endif