--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdbool.h>
+#include <byteswap.h>
+#include <sys/socket.h>
+
+#include "macro.h"
+#include "sd-bus.h"
+#include "time-util.h"
+#include "bus-creds.h"
+#include "bus-protocol.h"
+
+struct bus_container {
+ char enclosing;
+ bool need_offsets:1;
+
+ /* Indexes into the signature string */
+ unsigned index, saved_index;
+ char *signature;
+
+ size_t before, begin, end;
+
+ /* dbus1: pointer to the array size value, if this is a value */
+ uint32_t *array_size;
+
+ /* gvariant: list of offsets to end of children if this is struct/dict entry/array */
+ size_t *offsets, n_offsets, offsets_allocated, offset_index;
+ size_t item_size;
+
+ char *peeked_signature;
+};
+
+struct bus_body_part {
+ struct bus_body_part *next;
+ void *data;
+ void *mmap_begin;
+ size_t size;
+ size_t mapped;
+ size_t allocated;
+ uint64_t memfd_offset;
+ int memfd;
+ bool free_this:1;
+ bool munmap_this:1;
+ bool sealed:1;
+ bool is_zero:1;
+};
+
+struct sd_bus_message {
+ unsigned n_ref;
+
+ sd_bus *bus;
+
+ uint64_t reply_cookie;
+
+ const char *path;
+ const char *interface;
+ const char *member;
+ const char *destination;
+ const char *sender;
+
+ sd_bus_error error;
+
+ sd_bus_creds creds;
+
+ usec_t monotonic;
+ usec_t realtime;
+ uint64_t seqnum;
+ int64_t priority;
+ uint64_t verify_destination_id;
+
+ bool sealed:1;
+ bool dont_send:1;
+ bool allow_fds:1;
+ bool free_header:1;
+ bool free_kdbus:1;
+ bool free_fds:1;
+ bool release_kdbus:1;
+ bool poisoned:1;
+
+ /* The first and last bytes of the message */
+ struct bus_header *header;
+ void *footer;
+
+ /* How many bytes are accessible in the above pointers */
+ size_t header_accessible;
+ size_t footer_accessible;
+
+ size_t fields_size;
+ size_t body_size;
+ size_t user_body_size;
+
+ struct bus_body_part body;
+ struct bus_body_part *body_end;
+ unsigned n_body_parts;
+
+ size_t rindex;
+ struct bus_body_part *cached_rindex_part;
+ size_t cached_rindex_part_begin;
+
+ uint32_t n_fds;
+ int *fds;
+
+ struct bus_container root_container, *containers;
+ size_t n_containers;
+ size_t containers_allocated;
+
+ struct iovec *iovec;
+ struct iovec iovec_fixed[2];
+ unsigned n_iovec;
+
+ struct kdbus_msg *kdbus;
+
+ char *peeked_signature;
+
+ /* If set replies to this message must carry the signature
+ * specified here to successfully seal. This is initialized
+ * from the vtable data */
+ const char *enforced_reply_signature;
+
+ usec_t timeout;
+
+ char sender_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
+ char destination_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
+ char *destination_ptr;
+
+ size_t header_offsets[_BUS_MESSAGE_HEADER_MAX];
+ unsigned n_header_offsets;
+};
+
+static inline bool BUS_MESSAGE_NEED_BSWAP(sd_bus_message *m) {
+ return m->header->endian != BUS_NATIVE_ENDIAN;
+}
+
+static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
+ return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
+}
+
+static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
+ return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
+}
+
+static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
+ return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
+}
+
+static inline uint64_t BUS_MESSAGE_COOKIE(sd_bus_message *m) {
+ if (m->header->version == 2)
+ return BUS_MESSAGE_BSWAP64(m, m->header->dbus2.cookie);
+
+ return BUS_MESSAGE_BSWAP32(m, m->header->dbus1.serial);
+}
+
+static inline size_t BUS_MESSAGE_SIZE(sd_bus_message *m) {
+ return
+ sizeof(struct bus_header) +
+ ALIGN8(m->fields_size) +
+ m->body_size;
+}
+
+static inline size_t BUS_MESSAGE_BODY_BEGIN(sd_bus_message *m) {
+ return
+ sizeof(struct bus_header) +
+ ALIGN8(m->fields_size);
+}
+
+static inline void* BUS_MESSAGE_FIELDS(sd_bus_message *m) {
+ return (uint8_t*) m->header + sizeof(struct bus_header);
+}
+
+static inline bool BUS_MESSAGE_IS_GVARIANT(sd_bus_message *m) {
+ return m->header->version == 2;
+}
+
+int bus_message_seal(sd_bus_message *m, uint64_t serial, usec_t timeout);
+int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
+int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
+
+int bus_message_from_header(
+ sd_bus *bus,
+ void *header,
+ size_t header_accessible,
+ void *footer,
+ size_t footer_accessible,
+ size_t message_size,
+ int *fds,
+ unsigned n_fds,
+ const struct ucred *ucred,
+ const char *label,
+ size_t extra,
+ sd_bus_message **ret);
+
+int bus_message_from_malloc(
+ sd_bus *bus,
+ void *buffer,
+ size_t length,
+ int *fds,
+ unsigned n_fds,
+ const struct ucred *ucred,
+ const char *label,
+ sd_bus_message **ret);
+
+int bus_message_get_arg(sd_bus_message *m, unsigned i, const char **str, char ***strv);
+
+int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
+
+int bus_message_parse_fields(sd_bus_message *m);
+
+struct bus_body_part *message_append_part(sd_bus_message *m);
+
+#define MESSAGE_FOREACH_PART(part, i, m) \
+ for ((i) = 0, (part) = &(m)->body; (i) < (m)->n_body_parts; (i)++, (part) = (part)->next)
+
+int bus_body_part_map(struct bus_body_part *part);
+void bus_body_part_unmap(struct bus_body_part *part);
+
+int bus_message_to_errno(sd_bus_message *m);
+
+int bus_message_new_synthetic_error(sd_bus *bus, uint64_t serial, const sd_bus_error *e, sd_bus_message **m);
+
+int bus_message_remarshal(sd_bus *bus, sd_bus_message **m);
+
+int bus_message_append_sender(sd_bus_message *m, const char *sender);
+
+void bus_message_set_sender_driver(sd_bus *bus, sd_bus_message *m);
+void bus_message_set_sender_local(sd_bus *bus, sd_bus_message *m);
~ianmdlvl / elogind.git / blobdiff