#include <sys/prctl.h>
/* When we include libgen.h because we need dirname() we immediately
- * undefine basename() since libgen.h defines it as a macro to the XDG
- * version which is really broken. */
+ * undefine basename() since libgen.h defines it as a macro to the POSIX
+ * version which is really broken. We prefer GNU basename(). */
#include <libgen.h>
#undef basename
-#include "util.h"
-#include "strv.h"
-#include "memfd-util.h"
-#include "capability.h"
-#include "fileio.h"
-#include "formats-util.h"
-
+#include "alloc-util.h"
+#include "bus-bloom.h"
#include "bus-internal.h"
-#include "bus-message.h"
#include "bus-kernel.h"
-#include "bus-bloom.h"
-#include "bus-util.h"
#include "bus-label.h"
+#include "bus-message.h"
+#include "bus-util.h"
+#include "capability-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "formats-util.h"
+#include "memfd-util.h"
+#include "parse-util.h"
+#include "string-util.h"
+#include "strv.h"
+#include "user-util.h"
+#include "util.h"
#define UNIQUE_NAME_MAX (3+DECIMAL_STR_MAX(uint64_t))
bloom_add_prefixes(data, size, n_hash, buf, t, '/');
}
+static void add_bloom_arg_has(void *data, size_t size, unsigned n_hash, unsigned i, const char *t) {
+ char buf[sizeof("arg")-1 + 2 + sizeof("-has")];
+ char *e;
+
+ assert(data);
+ assert(size > 0);
+ assert(i < 64);
+ assert(t);
+
+ e = stpcpy(buf, "arg");
+ if (i < 10)
+ *(e++) = '0' + (char) i;
+ else {
+ *(e++) = '0' + (char) (i / 10);
+ *(e++) = '0' + (char) (i % 10);
+ }
+
+ strcpy(e, "-has");
+ bloom_add_pair(data, size, n_hash, buf, t);
+}
+
static int bus_message_setup_bloom(sd_bus_message *m, struct kdbus_bloom_filter *bloom) {
void *data;
unsigned i;
return r;
add_bloom_arg(data, m->bus->bloom_size, m->bus->bloom_n_hash, i, t);
- } if (type == SD_BUS_TYPE_ARRAY && STR_IN_SET(contents, "s", "o", "g")) {
+ }
+
+ if (type == SD_BUS_TYPE_ARRAY && STR_IN_SET(contents, "s", "o", "g")) {
/* As well as array of simple strings of any kinds */
r = sd_bus_message_enter_container(m, type, contents);
return r;
while ((r = sd_bus_message_read_basic(m, contents[0], &t)) > 0)
- add_bloom_arg(data, m->bus->bloom_size, m->bus->bloom_n_hash, i, t);
+ add_bloom_arg_has(data, m->bus->bloom_size, m->bus->bloom_n_hash, i, t);
if (r < 0)
return r;
footer, footer_size,
n_bytes,
fds, n_fds,
- NULL,
seclabel, 0, &m);
if (r < 0)
return r;
case KDBUS_ITEM_FDS:
case KDBUS_ITEM_SECLABEL:
+ case KDBUS_ITEM_BLOOM_FILTER:
break;
default:
r = ioctl(bus->output_fd, KDBUS_CMD_SEND, &cmd);
if (r < 0) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus_message *reply;
if (errno == EAGAIN || errno == EINTR)
const char *new_owner,
const struct kdbus_timestamp *ts) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
int r;
assert(bus);
const struct kdbus_item *d,
const struct kdbus_timestamp *ts) {
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
int r;
assert(bus);
KDBUS_ITEM_FOREACH(d, k, items) {
if (d->type == KDBUS_ITEM_TIMESTAMP)
ts = &d->timestamp;
-
- if (d->type >= _KDBUS_ITEM_KERNEL_BASE && d->type < _KDBUS_ITEM_KERNEL_BASE + ELEMENTSOF(translate)) {
+ else if (d->type >= _KDBUS_ITEM_KERNEL_BASE && d->type < _KDBUS_ITEM_KERNEL_BASE + ELEMENTSOF(translate)) {
if (found)
return -EBADMSG;
found = d;
r = 0;
}
- } else if (k->payload_type == KDBUS_PAYLOAD_KERNEL)
+ if (r <= 0)
+ close_kdbus_msg(bus, k);
+ } else if (k->payload_type == KDBUS_PAYLOAD_KERNEL) {
r = bus_kernel_translate_message(bus, k);
- else {
+ close_kdbus_msg(bus, k);
+ } else {
log_debug("Ignoring message with unknown payload type %llu.", (unsigned long long) k->payload_type);
r = 0;
- }
-
- if (r <= 0)
close_kdbus_msg(bus, k);
+ }
return r < 0 ? r : 1;
}
if (!bus || !bus->is_kernel)
return -EOPNOTSUPP;
- assert_se(pthread_mutex_lock(&bus->memfd_cache_mutex) >= 0);
+ assert_se(pthread_mutex_lock(&bus->memfd_cache_mutex) == 0);
if (bus->n_memfd_cache <= 0) {
int r;
- assert_se(pthread_mutex_unlock(&bus->memfd_cache_mutex) >= 0);
+ assert_se(pthread_mutex_unlock(&bus->memfd_cache_mutex) == 0);
r = memfd_new(bus->description);
if (r < 0)
*allocated = c->allocated;
fd = c->fd;
- assert_se(pthread_mutex_unlock(&bus->memfd_cache_mutex) >= 0);
+ assert_se(pthread_mutex_unlock(&bus->memfd_cache_mutex) == 0);
return fd;
}
return;
}
- assert_se(pthread_mutex_lock(&bus->memfd_cache_mutex) >= 0);
+ assert_se(pthread_mutex_lock(&bus->memfd_cache_mutex) == 0);
if (bus->n_memfd_cache >= ELEMENTSOF(bus->memfd_cache)) {
- assert_se(pthread_mutex_unlock(&bus->memfd_cache_mutex) >= 0);
+ assert_se(pthread_mutex_unlock(&bus->memfd_cache_mutex) == 0);
close_and_munmap(fd, address, mapped);
return;
c->allocated = allocated;
}
- assert_se(pthread_mutex_unlock(&bus->memfd_cache_mutex) >= 0);
+ assert_se(pthread_mutex_unlock(&bus->memfd_cache_mutex) == 0);
}
void bus_kernel_flush_memfd(sd_bus *b) {
return m;
}
+#if 0 /// UNNEEDED by elogind
int bus_kernel_create_bus(const char *name, bool world, char **s) {
struct kdbus_cmd *make;
struct kdbus_item *n;
make = alloca0_align(offsetof(struct kdbus_cmd, items) +
ALIGN8(offsetof(struct kdbus_item, bloom_parameter) + sizeof(struct kdbus_bloom_parameter)) +
ALIGN8(offsetof(struct kdbus_item, data64) + sizeof(uint64_t)) +
- ALIGN8(offsetof(struct kdbus_item, data64) + sizeof(uint64_t)) +
ALIGN8(offsetof(struct kdbus_item, str) + DECIMAL_STR_MAX(uid_t) + 1 + l + 1),
8);
make->size += ALIGN8(n->size);
- /* The busses we create make no restrictions on what metadata
- * peers can read from incoming messages. */
- n = KDBUS_ITEM_NEXT(n);
- n->type = KDBUS_ITEM_ATTACH_FLAGS_RECV;
- n->size = offsetof(struct kdbus_item, data64) + sizeof(uint64_t);
- n->data64[0] = _KDBUS_ATTACH_ANY;
- make->size += ALIGN8(n->size);
-
/* Provide all metadata via bus-owner queries */
n = KDBUS_ITEM_NEXT(n);
n->type = KDBUS_ITEM_ATTACH_FLAGS_SEND;
return fd;
}
+#endif // 0
int bus_kernel_open_bus_fd(const char *bus, char **path) {
char *p;
return fd;
}
+#if 0 /// UNNEEDED by elogind
int bus_kernel_create_endpoint(const char *bus_name, const char *ep_name, char **ep_path) {
_cleanup_free_ char *path = NULL;
struct kdbus_cmd *make;
return fd;
}
+#endif // 0
int bus_kernel_try_close(sd_bus *bus) {
struct kdbus_cmd byebye = { .size = sizeof(byebye) };
return 0;
}
+#if 0 /// UNNEEDED by elogind
int bus_kernel_drop_one(int fd) {
struct kdbus_cmd_recv recv = {
.size = sizeof(recv),
return 0;
}
+#endif // 0
int bus_kernel_realize_attach_flags(sd_bus *bus) {
struct kdbus_cmd *update;
return 0;
}
-int bus_kernel_fix_attach_mask(void) {
- _cleanup_free_ char *mask = NULL;
- uint64_t m = (uint64_t) -1;
- char buf[2+16+2];
- int r;
-
- /* By default we don't want any kdbus metadata fields to be
- * suppressed, hence we reset the kernel mask for it to
- * (uint64_t) -1. If the module argument was overwritten by
- * the kernel cmdline, we leave it as is. */
-
- r = get_proc_cmdline_key("kdbus.attach_flags_mask=", &mask);
- if (r < 0)
- return log_warning_errno(r, "Failed to read kernel command line: %m");
-
- if (r == 0) {
- sprintf(buf, "0x%" PRIx64 "\n", m);
- r = write_string_file("/sys/module/kdbus/parameters/attach_flags_mask", buf);
- if (r < 0)
- return log_full_errno(IN_SET(r, -ENOENT, -EROFS) ? LOG_DEBUG : LOG_WARNING, r,
- "Failed to write kdbus attach mask: %m");
- }
-
- return 0;
-}
-
int bus_kernel_get_bus_name(sd_bus *bus, char **name) {
struct kdbus_cmd_info cmd = {
.size = sizeof(struct kdbus_cmd_info),
~ianmdlvl / elogind.git / blobdiff