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-rw-r--r--src/libsystemd-bus/bus-message.c68
-rw-r--r--src/libsystemd-bus/bus-message.h3
-rw-r--r--src/libsystemd-bus/bus-socket.c37
-rw-r--r--src/libsystemd-bus/sd-bus.c4
4 files changed, 64 insertions, 48 deletions
diff --git a/src/libsystemd-bus/bus-message.c b/src/libsystemd-bus/bus-message.c
index 4d4f3b5260..fb4718085b 100644
--- a/src/libsystemd-bus/bus-message.c
+++ b/src/libsystemd-bus/bus-message.c
@@ -302,7 +302,6 @@ int bus_message_from_malloc(
m->n_iovec = 1;
m->iovec[0].iov_base = buffer;
m->iovec[0].iov_len = length;
- m->size = length;
r = message_parse_fields(m);
if (r < 0)
@@ -2794,42 +2793,6 @@ static int message_parse_fields(sd_bus_message *m) {
return 0;
}
-static void setup_iovec(sd_bus_message *m) {
- assert(m);
- assert(m->sealed);
-
- m->n_iovec = 0;
- m->size = 0;
-
- m->iovec[m->n_iovec].iov_base = m->header;
- m->iovec[m->n_iovec].iov_len = sizeof(*m->header);
- m->size += m->iovec[m->n_iovec].iov_len;
- m->n_iovec++;
-
- if (m->fields) {
- m->iovec[m->n_iovec].iov_base = m->fields;
- m->iovec[m->n_iovec].iov_len = m->header->fields_size;
- m->size += m->iovec[m->n_iovec].iov_len;
- m->n_iovec++;
-
- if (m->header->fields_size % 8 != 0) {
- static const uint8_t padding[7] = { 0, 0, 0, 0, 0, 0, 0 };
-
- m->iovec[m->n_iovec].iov_base = (void*) padding;
- m->iovec[m->n_iovec].iov_len = 8 - m->header->fields_size % 8;
- m->size += m->iovec[m->n_iovec].iov_len;
- m->n_iovec++;
- }
- }
-
- if (m->body) {
- m->iovec[m->n_iovec].iov_base = m->body;
- m->iovec[m->n_iovec].iov_len = m->header->body_size;
- m->size += m->iovec[m->n_iovec].iov_len;
- m->n_iovec++;
- }
-}
-
int bus_message_seal(sd_bus_message *m, uint64_t serial) {
int r;
@@ -2857,8 +2820,6 @@ int bus_message_seal(sd_bus_message *m, uint64_t serial) {
m->header->serial = serial;
m->sealed = true;
- setup_iovec(m);
-
return 0;
}
@@ -3074,22 +3035,31 @@ int bus_message_dump(sd_bus_message *m) {
int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz) {
size_t total;
- unsigned i;
void *p, *e;
assert(m);
assert(buffer);
assert(sz);
- for (i = 0, total = 0; i < m->n_iovec; i++)
- total += m->iovec[i].iov_len;
+ total = bus_message_size(m);
p = malloc(total);
if (!p)
return -ENOMEM;
- for (i = 0, e = p; i < m->n_iovec; i++)
- e = mempcpy(e, m->iovec[i].iov_base, m->iovec[i].iov_len);
+ e = mempcpy(p, m->header, sizeof(*m->header));
+
+ if (m->fields) {
+ e = mempcpy(e, m->fields, m->header->fields_size);
+
+ if (m->header->fields_size % 8 != 0)
+ e = mempset(e, 0, 8 - (m->header->fields_size % 8));
+ }
+
+ if (m->body)
+ e = mempcpy(e, m->body, m->header->body_size);
+
+ assert(total == (size_t) ((uint8_t*) e - (uint8_t*) p));
*buffer = p;
*sz = total;
@@ -3162,3 +3132,13 @@ const char* bus_message_get_arg(sd_bus_message *m, unsigned i) {
return t;
}
+
+size_t bus_message_size(sd_bus_message *m) {
+ assert(m);
+ assert(m->sealed);
+
+ return
+ sizeof(*m->header) +
+ ALIGN8(m->header->fields_size) +
+ m->header->body_size;
+}
diff --git a/src/libsystemd-bus/bus-message.h b/src/libsystemd-bus/bus-message.h
index cc1e10d843..126ced0083 100644
--- a/src/libsystemd-bus/bus-message.h
+++ b/src/libsystemd-bus/bus-message.h
@@ -92,7 +92,6 @@ struct sd_bus_message {
struct iovec iovec[4];
unsigned n_iovec;
- size_t size;
char *peeked_signature;
};
@@ -146,3 +145,5 @@ int bus_message_from_malloc(
const char* bus_message_get_arg(sd_bus_message *m, unsigned i);
int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
+
+size_t bus_message_size(sd_bus_message *m);
diff --git a/src/libsystemd-bus/bus-socket.c b/src/libsystemd-bus/bus-socket.c
index 1a0d9266f2..5e285c9e52 100644
--- a/src/libsystemd-bus/bus-socket.c
+++ b/src/libsystemd-bus/bus-socket.c
@@ -58,6 +58,39 @@ static void iovec_advance(struct iovec iov[], unsigned *idx, size_t size) {
}
}
+static void append_iovec(sd_bus_message *m, const void *p, size_t sz) {
+ assert(m);
+ assert(p);
+ assert(sz > 0);
+
+ m->iovec[m->n_iovec].iov_base = (void*) p;
+ m->iovec[m->n_iovec].iov_len = sz;
+ m->n_iovec++;
+}
+
+static void bus_message_setup_iovec(sd_bus_message *m) {
+ assert(m);
+ assert(m->sealed);
+
+ if (m->n_iovec > 0)
+ return;
+
+ append_iovec(m, m->header, sizeof(*m->header));
+
+ if (m->fields) {
+ append_iovec(m, m->fields, m->header->fields_size);
+
+ if (m->header->fields_size % 8 != 0) {
+ static const uint8_t padding[7] = {};
+
+ append_iovec(m, padding, 8 - (m->header->fields_size % 8));
+ }
+ }
+
+ if (m->body)
+ append_iovec(m, m->body, m->header->body_size);
+}
+
bool bus_socket_auth_needs_write(sd_bus *b) {
unsigned i;
@@ -729,9 +762,11 @@ int bus_socket_write_message(sd_bus *bus, sd_bus_message *m, size_t *idx) {
assert(idx);
assert(bus->state == BUS_RUNNING || bus->state == BUS_HELLO);
- if (*idx >= m->size)
+ if (*idx >= bus_message_size(m))
return 0;
+ bus_message_setup_iovec(m);
+
n = m->n_iovec * sizeof(struct iovec);
iov = alloca(n);
memcpy(iov, m->iovec, n);
diff --git a/src/libsystemd-bus/sd-bus.c b/src/libsystemd-bus/sd-bus.c
index 2f084c26b3..89172e6369 100644
--- a/src/libsystemd-bus/sd-bus.c
+++ b/src/libsystemd-bus/sd-bus.c
@@ -965,7 +965,7 @@ static int dispatch_wqueue(sd_bus *bus) {
} else if (r == 0)
/* Didn't do anything this time */
return ret;
- else if (bus->windex >= bus->wqueue[0]->size) {
+ else if (bus->windex >= bus_message_size(bus->wqueue[0])) {
/* Fully written. Let's drop the entry from
* the queue.
*
@@ -1066,7 +1066,7 @@ int sd_bus_send(sd_bus *bus, sd_bus_message *m, uint64_t *serial) {
if (r < 0) {
sd_bus_close(bus);
return r;
- } else if (idx < m->size) {
+ } else if (idx < bus_message_size(m)) {
/* Wasn't fully written. So let's remember how
* much was written. Note that the first entry
* of the wqueue array is always allocated so
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-14 13:44:59 +0000