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-rw-r--r--src/libsystemd-bus/bus-control.c994
1 files changed, 540 insertions, 454 deletions
diff --git a/src/libsystemd-bus/bus-control.c b/src/libsystemd-bus/bus-control.c
index 5cb32eaa4c..de5c20e3f8 100644
--- a/src/libsystemd-bus/bus-control.c
+++ b/src/libsystemd-bus/bus-control.c
@@ -50,354 +50,254 @@ _public_ int sd_bus_get_unique_name(sd_bus *bus, const char **unique) {
return 0;
}
-_public_ int sd_bus_request_name(sd_bus *bus, const char *name, int flags) {
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
- uint32_t ret;
+static int bus_request_name_kernel(sd_bus *bus, const char *name, unsigned flags) {
+ struct kdbus_cmd_name *n;
+ size_t l;
int r;
- assert_return(bus, -EINVAL);
- assert_return(name, -EINVAL);
- assert_return(bus->bus_client, -EINVAL);
- assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
- assert_return(!bus_pid_changed(bus), -ECHILD);
-
- if (bus->is_kernel) {
- struct kdbus_cmd_name *n;
- size_t l;
+ assert(bus);
+ assert(name);
- l = strlen(name);
- n = alloca0(offsetof(struct kdbus_cmd_name, name) + l + 1);
- n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
- kdbus_translate_request_name_flags(flags, (uint64_t *) &n->flags);
- memcpy(n->name, name, l+1);
+ l = strlen(name);
+ n = alloca0(offsetof(struct kdbus_cmd_name, name) + l + 1);
+ n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
+ kdbus_translate_request_name_flags(flags, (uint64_t *) &n->flags);
+ memcpy(n->name, name, l+1);
#ifdef HAVE_VALGRIND_MEMCHECK_H
- VALGRIND_MAKE_MEM_DEFINED(n, n->size);
+ VALGRIND_MAKE_MEM_DEFINED(n, n->size);
#endif
- r = ioctl(bus->input_fd, KDBUS_CMD_NAME_ACQUIRE, n);
- if (r < 0) {
- if (errno == -EALREADY)
- return SD_BUS_NAME_ALREADY_OWNER;
-
- if (errno == -EEXIST)
- return SD_BUS_NAME_EXISTS;
-
- return -errno;
- }
-
- if (n->flags & KDBUS_NAME_IN_QUEUE)
- return SD_BUS_NAME_IN_QUEUE;
-
- return SD_BUS_NAME_PRIMARY_OWNER;
- } else {
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "RequestName",
- NULL,
- &reply,
- "su",
- name,
- flags);
- if (r < 0)
- return r;
+ r = ioctl(bus->input_fd, KDBUS_CMD_NAME_ACQUIRE, n);
+ if (r < 0)
+ return -errno;
- r = sd_bus_message_read(reply, "u", &ret);
- if (r < 0)
- return r;
+ if (n->flags & KDBUS_NAME_IN_QUEUE)
+ return 0;
- return ret;
- }
+ return 1;
}
-_public_ int sd_bus_release_name(sd_bus *bus, const char *name) {
+static int bus_request_name_dbus1(sd_bus *bus, const char *name, unsigned flags) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
uint32_t ret;
int r;
- assert_return(bus, -EINVAL);
- assert_return(name, -EINVAL);
- assert_return(bus->bus_client, -EINVAL);
- assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
- assert_return(!bus_pid_changed(bus), -ECHILD);
-
- if (bus->is_kernel) {
- struct kdbus_cmd_name *n;
- size_t l;
-
- l = strlen(name);
- n = alloca0(offsetof(struct kdbus_cmd_name, name) + l + 1);
- n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
- memcpy(n->name, name, l+1);
+ assert(bus);
+ assert(name);
-#ifdef HAVE_VALGRIND_MEMCHECK_H
- VALGRIND_MAKE_MEM_DEFINED(n, n->size);
-#endif
- r = ioctl(bus->input_fd, KDBUS_CMD_NAME_RELEASE, n);
- if (r < 0)
- return -errno;
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "RequestName",
+ NULL,
+ &reply,
+ "su",
+ name,
+ flags);
+ if (r < 0)
+ return r;
- return n->flags;
- } else {
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "ReleaseName",
- NULL,
- &reply,
- "s",
- name);
- if (r < 0)
- return r;
+ r = sd_bus_message_read(reply, "u", &ret);
+ if (r < 0)
+ return r;
- r = sd_bus_message_read(reply, "u", &ret);
- if (r < 0)
- return r;
- }
+ if (ret == SD_BUS_NAME_ALREADY_OWNER)
+ return -EALREADY;
+ else if (ret == SD_BUS_NAME_EXISTS)
+ return -EEXIST;
+ else if (ret == SD_BUS_NAME_IN_QUEUE)
+ return 0;
+ else
+ return -EIO;
- return ret;
+ return 1;
}
-_public_ int sd_bus_list_names(sd_bus *bus, char ***l) {
- _cleanup_bus_message_unref_ sd_bus_message *reply1 = NULL, *reply2 = NULL;
- char **x = NULL;
- int r;
-
+_public_ int sd_bus_request_name(sd_bus *bus, const char *name, unsigned flags) {
assert_return(bus, -EINVAL);
- assert_return(l, -EINVAL);
+ assert_return(name, -EINVAL);
+ assert_return(bus->bus_client, -EINVAL);
assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
+ assert_return(!(flags & ~(SD_BUS_NAME_ALLOW_REPLACEMENT|SD_BUS_NAME_REPLACE_EXISTING|SD_BUS_NAME_DO_NOT_QUEUE)), -EINVAL);
- if (bus->is_kernel) {
- _cleanup_free_ struct kdbus_cmd_name_list *cmd = NULL;
- struct kdbus_name_list *name_list;
- struct kdbus_cmd_name *name;
-
- cmd = malloc0(sizeof(struct kdbus_cmd_name_list));
- if (!cmd)
- return -ENOMEM;
-
- cmd->size = sizeof(struct kdbus_cmd_name_list);
- cmd->flags = KDBUS_NAME_LIST_UNIQUE | KDBUS_NAME_LIST_NAMES;
-
- r = ioctl(sd_bus_get_fd(bus), KDBUS_CMD_NAME_LIST, cmd);
- if (r < 0)
- return -errno;
-
- name_list = (struct kdbus_name_list *) ((uint8_t *) bus->kdbus_buffer + cmd->offset);
-
- KDBUS_PART_FOREACH(name, name_list, names) {
- char *n;
-
- if (name->size > sizeof(*name))
- n = name->name;
- else
- asprintf(&n, ":1.%llu", (unsigned long long) name->id);
-
- r = strv_extend(&x, n);
- if (r < 0)
- return -ENOMEM;
- }
-
- r = ioctl(sd_bus_get_fd(bus), KDBUS_CMD_FREE, &cmd->offset);
- if (r < 0)
- return -errno;
-
- *l = x;
- } else {
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "ListNames",
- NULL,
- &reply1,
- NULL);
- if (r < 0)
- return r;
+ if (bus->is_kernel)
+ return bus_request_name_kernel(bus, name, flags);
+ else
+ return bus_request_name_dbus1(bus, name, flags);
+}
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "ListActivatableNames",
- NULL,
- &reply2,
- NULL);
- if (r < 0)
- return r;
+static int bus_release_name_kernel(sd_bus *bus, const char *name) {
+ struct kdbus_cmd_name *n;
+ size_t l;
+ int r;
- r = bus_message_read_strv_extend(reply1, &x);
- if (r < 0) {
- strv_free(x);
- return r;
- }
+ assert(bus);
+ assert(name);
- r = bus_message_read_strv_extend(reply2, &x);
- if (r < 0) {
- strv_free(x);
- return r;
- }
+ l = strlen(name);
+ n = alloca0(offsetof(struct kdbus_cmd_name, name) + l + 1);
+ n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
+ memcpy(n->name, name, l+1);
- *l = strv_uniq(x);
- }
+#ifdef HAVE_VALGRIND_MEMCHECK_H
+ VALGRIND_MAKE_MEM_DEFINED(n, n->size);
+#endif
+ r = ioctl(bus->input_fd, KDBUS_CMD_NAME_RELEASE, n);
+ if (r < 0)
+ return -errno;
- return 0;
+ return n->flags;
}
-static int bus_get_owner_dbus(
- sd_bus *bus,
- const char *name,
- uint64_t mask,
- sd_bus_creds **creds) {
-
- _cleanup_bus_message_unref_ sd_bus_message *reply_unique = NULL, *reply = NULL;
- _cleanup_bus_creds_unref_ sd_bus_creds *c = NULL;
- const char *unique = NULL;
- pid_t pid = 0;
+static int bus_release_name_dbus1(sd_bus *bus, const char *name) {
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ uint32_t ret;
int r;
- /* Only query the owner if the caller wants to know it or if
- * the caller just wants to check whether a name exists */
- if ((mask & SD_BUS_CREDS_UNIQUE_NAME) || mask == 0) {
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "GetNameOwner",
- NULL,
- &reply_unique,
- "s",
- name);
- if (r < 0)
- return r;
-
- r = sd_bus_message_read(reply_unique, "s", &unique);
- if (r < 0)
- return r;
- }
+ assert(bus);
+ assert(name);
- if (mask != 0) {
- c = bus_creds_new();
- if (!c)
- return -ENOMEM;
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "ReleaseName",
+ NULL,
+ &reply,
+ "s",
+ name);
+ if (r < 0)
+ return r;
- if ((mask & SD_BUS_CREDS_UNIQUE_NAME) && unique) {
- c->unique_name = strdup(unique);
- if (!c->unique_name)
- return -ENOMEM;
+ r = sd_bus_message_read(reply, "u", &ret);
+ if (r < 0)
+ return r;
+ if (ret == SD_BUS_NAME_NON_EXISTENT)
+ return -ENOENT;
+ if (ret == SD_BUS_NAME_NOT_OWNER)
+ return -EADDRNOTAVAIL;
+ if (ret == SD_BUS_NAME_RELEASED)
+ return 0;
- c->mask |= SD_BUS_CREDS_UNIQUE_NAME;
- }
+ return -EINVAL;
+}
- if (mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_PID_STARTTIME|SD_BUS_CREDS_GID|
- SD_BUS_CREDS_COMM|SD_BUS_CREDS_EXE|SD_BUS_CREDS_CMDLINE|
- SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID|
- SD_BUS_CREDS_EFFECTIVE_CAPS|SD_BUS_CREDS_PERMITTED_CAPS|SD_BUS_CREDS_INHERITABLE_CAPS|SD_BUS_CREDS_BOUNDING_CAPS|
- SD_BUS_CREDS_AUDIT_SESSION_ID|SD_BUS_CREDS_AUDIT_LOGIN_UID)) {
- uint32_t u;
+_public_ int sd_bus_release_name(sd_bus *bus, const char *name) {
+ assert_return(bus, -EINVAL);
+ assert_return(name, -EINVAL);
+ assert_return(bus->bus_client, -EINVAL);
+ assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
+ assert_return(!bus_pid_changed(bus), -ECHILD);
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "GetConnectionUnixProcessID",
- NULL,
- &reply,
- "s",
- unique ? unique : name);
- if (r < 0)
- return r;
+ if (bus->is_kernel)
+ return bus_release_name_kernel(bus, name);
+ else
+ return bus_release_name_dbus1(bus, name);
+}
- r = sd_bus_message_read(reply, "u", &u);
- if (r < 0)
- return r;
+static int bus_list_names_kernel(sd_bus *bus, char ***l) {
+ _cleanup_free_ struct kdbus_cmd_name_list *cmd = NULL;
+ struct kdbus_name_list *name_list;
+ struct kdbus_cmd_name *name;
+ char **x = NULL;
+ int r;
- pid = u;
- if (mask & SD_BUS_CREDS_PID) {
- c->pid = u;
- c->mask |= SD_BUS_CREDS_PID;
- }
+ cmd = malloc0(sizeof(struct kdbus_cmd_name_list));
+ if (!cmd)
+ return -ENOMEM;
- reply = sd_bus_message_unref(reply);
- }
+ cmd->size = sizeof(struct kdbus_cmd_name_list);
+ cmd->flags = KDBUS_NAME_LIST_UNIQUE | KDBUS_NAME_LIST_NAMES;
- if (mask & SD_BUS_CREDS_UID) {
- uint32_t u;
+ r = ioctl(sd_bus_get_fd(bus), KDBUS_CMD_NAME_LIST, cmd);
+ if (r < 0)
+ return -errno;
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "GetConnectionUnixUser",
- NULL,
- &reply,
- "s",
- unique ? unique : name);
- if (r < 0)
- return r;
+ name_list = (struct kdbus_name_list *) ((uint8_t *) bus->kdbus_buffer + cmd->offset);
- r = sd_bus_message_read(reply, "u", &u);
- if (r < 0)
- return r;
+ KDBUS_PART_FOREACH(name, name_list, names) {
+ char *n;
- c->uid = u;
- c->mask |= SD_BUS_CREDS_UID;
+ if (name->size > sizeof(*name))
+ n = name->name;
+ else
+ asprintf(&n, ":1.%llu", (unsigned long long) name->id);
- reply = sd_bus_message_unref(reply);
- }
+ r = strv_extend(&x, n);
+ if (r < 0)
+ return -ENOMEM;
+ }
- if (mask & SD_BUS_CREDS_SELINUX_CONTEXT) {
- const void *p;
- size_t sz;
+ r = ioctl(sd_bus_get_fd(bus), KDBUS_CMD_FREE, &cmd->offset);
+ if (r < 0)
+ return -errno;
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "GetConnectionSELinuxSecurityContext",
- NULL,
- &reply,
- "s",
- unique ? unique : name);
- if (r < 0)
- return r;
+ *l = x;
+ return 0;
+}
- r = sd_bus_message_read_array(reply, 'y', &p, &sz);
- if (r < 0)
- return r;
+static int bus_list_names_dbus1(sd_bus *bus, char ***l) {
+ _cleanup_bus_message_unref_ sd_bus_message *reply1 = NULL, *reply2 = NULL;
+ char **x = NULL;
+ int r;
- c->label = strndup(p, sz);
- if (!c->label)
- return -ENOMEM;
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "ListNames",
+ NULL,
+ &reply1,
+ NULL);
+ if (r < 0)
+ return r;
- c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT;
- }
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "ListActivatableNames",
+ NULL,
+ &reply2,
+ NULL);
+ if (r < 0)
+ return r;
- r = bus_creds_add_more(c, mask, pid, 0);
- if (r < 0)
- return r;
+ r = bus_message_read_strv_extend(reply1, &x);
+ if (r < 0) {
+ strv_free(x);
+ return r;
}
- if (creds) {
- *creds = c;
- c = NULL;
+ r = bus_message_read_strv_extend(reply2, &x);
+ if (r < 0) {
+ strv_free(x);
+ return r;
}
+ *l = strv_uniq(x);
return 0;
}
+_public_ int sd_bus_list_names(sd_bus *bus, char ***l) {
+ assert_return(bus, -EINVAL);
+ assert_return(l, -EINVAL);
+ assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
+ assert_return(!bus_pid_changed(bus), -ECHILD);
+
+ if (bus->is_kernel)
+ return bus_list_names_kernel(bus, l);
+ else
+ return bus_list_names_dbus1(bus, l);
+}
+
static int bus_get_owner_kdbus(
sd_bus *bus,
const char *name,
@@ -591,6 +491,152 @@ fail:
return r;
}
+static int bus_get_owner_dbus1(
+ sd_bus *bus,
+ const char *name,
+ uint64_t mask,
+ sd_bus_creds **creds) {
+
+ _cleanup_bus_message_unref_ sd_bus_message *reply_unique = NULL, *reply = NULL;
+ _cleanup_bus_creds_unref_ sd_bus_creds *c = NULL;
+ const char *unique = NULL;
+ pid_t pid = 0;
+ int r;
+
+ /* Only query the owner if the caller wants to know it or if
+ * the caller just wants to check whether a name exists */
+ if ((mask & SD_BUS_CREDS_UNIQUE_NAME) || mask == 0) {
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "GetNameOwner",
+ NULL,
+ &reply_unique,
+ "s",
+ name);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(reply_unique, "s", &unique);
+ if (r < 0)
+ return r;
+ }
+
+ if (mask != 0) {
+ c = bus_creds_new();
+ if (!c)
+ return -ENOMEM;
+
+ if ((mask & SD_BUS_CREDS_UNIQUE_NAME) && unique) {
+ c->unique_name = strdup(unique);
+ if (!c->unique_name)
+ return -ENOMEM;
+
+ c->mask |= SD_BUS_CREDS_UNIQUE_NAME;
+ }
+
+ if (mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_PID_STARTTIME|SD_BUS_CREDS_GID|
+ SD_BUS_CREDS_COMM|SD_BUS_CREDS_EXE|SD_BUS_CREDS_CMDLINE|
+ SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID|
+ SD_BUS_CREDS_EFFECTIVE_CAPS|SD_BUS_CREDS_PERMITTED_CAPS|SD_BUS_CREDS_INHERITABLE_CAPS|SD_BUS_CREDS_BOUNDING_CAPS|
+ SD_BUS_CREDS_AUDIT_SESSION_ID|SD_BUS_CREDS_AUDIT_LOGIN_UID)) {
+ uint32_t u;
+
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "GetConnectionUnixProcessID",
+ NULL,
+ &reply,
+ "s",
+ unique ? unique : name);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(reply, "u", &u);
+ if (r < 0)
+ return r;
+
+ pid = u;
+ if (mask & SD_BUS_CREDS_PID) {
+ c->pid = u;
+ c->mask |= SD_BUS_CREDS_PID;
+ }
+
+ reply = sd_bus_message_unref(reply);
+ }
+
+ if (mask & SD_BUS_CREDS_UID) {
+ uint32_t u;
+
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "GetConnectionUnixUser",
+ NULL,
+ &reply,
+ "s",
+ unique ? unique : name);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read(reply, "u", &u);
+ if (r < 0)
+ return r;
+
+ c->uid = u;
+ c->mask |= SD_BUS_CREDS_UID;
+
+ reply = sd_bus_message_unref(reply);
+ }
+
+ if (mask & SD_BUS_CREDS_SELINUX_CONTEXT) {
+ const void *p;
+ size_t sz;
+
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "GetConnectionSELinuxSecurityContext",
+ NULL,
+ &reply,
+ "s",
+ unique ? unique : name);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read_array(reply, 'y', &p, &sz);
+ if (r < 0)
+ return r;
+
+ c->label = strndup(p, sz);
+ if (!c->label)
+ return -ENOMEM;
+
+ c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT;
+ }
+
+ r = bus_creds_add_more(c, mask, pid, 0);
+ if (r < 0)
+ return r;
+ }
+
+ if (creds) {
+ *creds = c;
+ c = NULL;
+ }
+
+ return 0;
+}
+
_public_ int sd_bus_get_owner(
sd_bus *bus,
const char *name,
@@ -607,7 +653,7 @@ _public_ int sd_bus_get_owner(
if (bus->is_kernel)
return bus_get_owner_kdbus(bus, name, mask, creds);
else
- return bus_get_owner_dbus(bus, name, mask, creds);
+ return bus_get_owner_dbus1(bus, name, mask, creds);
}
static int add_name_change_match(sd_bus *bus,
@@ -778,231 +824,271 @@ static int add_name_change_match(sd_bus *bus,
return 0;
}
-int bus_add_match_internal(
+static int bus_add_match_internal_kernel(
sd_bus *bus,
const char *match,
struct bus_match_component *components,
unsigned n_components,
uint64_t cookie) {
+ struct kdbus_cmd_match *m;
+ struct kdbus_item *item;
+ uint64_t bloom[BLOOM_SIZE/8];
+ size_t sz;
+ const char *sender = NULL;
+ size_t sender_length = 0;
+ uint64_t src_id = KDBUS_MATCH_SRC_ID_ANY;
+ bool using_bloom = false;
+ unsigned i;
+ bool matches_name_change = true;
+ const char *name_change_arg[3] = {};
int r;
assert(bus);
assert(match);
- if (bus->is_kernel) {
- struct kdbus_cmd_match *m;
- struct kdbus_item *item;
- uint64_t bloom[BLOOM_SIZE/8];
- size_t sz;
- const char *sender = NULL;
- size_t sender_length = 0;
- uint64_t src_id = KDBUS_MATCH_SRC_ID_ANY;
- bool using_bloom = false;
- unsigned i;
- bool matches_name_change = true;
- const char *name_change_arg[3] = {};
-
- zero(bloom);
-
- sz = offsetof(struct kdbus_cmd_match, items);
-
- for (i = 0; i < n_components; i++) {
- struct bus_match_component *c = &components[i];
-
- switch (c->type) {
-
- case BUS_MATCH_SENDER:
- if (!streq(c->value_str, "org.freedesktop.DBus"))
- matches_name_change = false;
-
- r = bus_kernel_parse_unique_name(c->value_str, &src_id);
- if (r < 0)
- return r;
-
- if (r > 0) {
- sender = c->value_str;
- sender_length = strlen(sender);
- sz += ALIGN8(offsetof(struct kdbus_item, str) + sender_length + 1);
- }
+ zero(bloom);
- break;
+ sz = offsetof(struct kdbus_cmd_match, items);
- case BUS_MATCH_MESSAGE_TYPE:
- if (c->value_u8 != SD_BUS_MESSAGE_SIGNAL)
- matches_name_change = false;
+ for (i = 0; i < n_components; i++) {
+ struct bus_match_component *c = &components[i];
- bloom_add_pair(bloom, "message-type", bus_message_type_to_string(c->value_u8));
- using_bloom = true;
- break;
+ switch (c->type) {
- case BUS_MATCH_INTERFACE:
- if (!streq(c->value_str, "org.freedesktop.DBus"))
- matches_name_change = false;
+ case BUS_MATCH_SENDER:
+ if (!streq(c->value_str, "org.freedesktop.DBus"))
+ matches_name_change = false;
- bloom_add_pair(bloom, "interface", c->value_str);
- using_bloom = true;
- break;
+ r = bus_kernel_parse_unique_name(c->value_str, &src_id);
+ if (r < 0)
+ return r;
- case BUS_MATCH_MEMBER:
- if (!streq(c->value_str, "NameOwnerChanged"))
- matches_name_change = false;
+ if (r > 0) {
+ sender = c->value_str;
+ sender_length = strlen(sender);
+ sz += ALIGN8(offsetof(struct kdbus_item, str) + sender_length + 1);
+ }
- bloom_add_pair(bloom, "member", c->value_str);
- using_bloom = true;
- break;
+ break;
- case BUS_MATCH_PATH:
- if (!streq(c->value_str, "/org/freedesktop/DBus"))
- matches_name_change = false;
+ case BUS_MATCH_MESSAGE_TYPE:
+ if (c->value_u8 != SD_BUS_MESSAGE_SIGNAL)
+ matches_name_change = false;
- bloom_add_pair(bloom, "path", c->value_str);
- using_bloom = true;
- break;
+ bloom_add_pair(bloom, "message-type", bus_message_type_to_string(c->value_u8));
+ using_bloom = true;
+ break;
- case BUS_MATCH_PATH_NAMESPACE:
- if (!streq(c->value_str, "/")) {
- bloom_add_pair(bloom, "path-slash-prefix", c->value_str);
- using_bloom = true;
- }
- break;
+ case BUS_MATCH_INTERFACE:
+ if (!streq(c->value_str, "org.freedesktop.DBus"))
+ matches_name_change = false;
- case BUS_MATCH_ARG...BUS_MATCH_ARG_LAST: {
- char buf[sizeof("arg")-1 + 2 + 1];
+ bloom_add_pair(bloom, "interface", c->value_str);
+ using_bloom = true;
+ break;
- if (c->type - BUS_MATCH_ARG < 3)
- name_change_arg[c->type - BUS_MATCH_ARG] = c->value_str;
+ case BUS_MATCH_MEMBER:
+ if (!streq(c->value_str, "NameOwnerChanged"))
+ matches_name_change = false;
- snprintf(buf, sizeof(buf), "arg%u", c->type - BUS_MATCH_ARG);
- bloom_add_pair(bloom, buf, c->value_str);
- using_bloom = true;
- break;
- }
+ bloom_add_pair(bloom, "member", c->value_str);
+ using_bloom = true;
+ break;
- case BUS_MATCH_ARG_PATH...BUS_MATCH_ARG_PATH_LAST: {
- char buf[sizeof("arg")-1 + 2 + sizeof("-slash-prefix")];
+ case BUS_MATCH_PATH:
+ if (!streq(c->value_str, "/org/freedesktop/DBus"))
+ matches_name_change = false;
+
+ bloom_add_pair(bloom, "path", c->value_str);
+ using_bloom = true;
+ break;
- snprintf(buf, sizeof(buf), "arg%u-slash-prefix", c->type - BUS_MATCH_ARG_PATH);
- bloom_add_pair(bloom, buf, c->value_str);
+ case BUS_MATCH_PATH_NAMESPACE:
+ if (!streq(c->value_str, "/")) {
+ bloom_add_pair(bloom, "path-slash-prefix", c->value_str);
using_bloom = true;
- break;
}
+ break;
- case BUS_MATCH_ARG_NAMESPACE...BUS_MATCH_ARG_NAMESPACE_LAST: {
- char buf[sizeof("arg")-1 + 2 + sizeof("-dot-prefix")];
+ case BUS_MATCH_ARG...BUS_MATCH_ARG_LAST: {
+ char buf[sizeof("arg")-1 + 2 + 1];
- snprintf(buf, sizeof(buf), "arg%u-dot-prefix", c->type - BUS_MATCH_ARG_NAMESPACE);
- bloom_add_pair(bloom, buf, c->value_str);
- using_bloom = true;
- break;
- }
+ if (c->type - BUS_MATCH_ARG < 3)
+ name_change_arg[c->type - BUS_MATCH_ARG] = c->value_str;
- case BUS_MATCH_DESTINATION:
- /* The bloom filter does not include
- the destination, since it is only
- available for broadcast messages
- which do not carry a destination
- since they are undirected. */
- break;
-
- case BUS_MATCH_ROOT:
- case BUS_MATCH_VALUE:
- case BUS_MATCH_LEAF:
- case _BUS_MATCH_NODE_TYPE_MAX:
- case _BUS_MATCH_NODE_TYPE_INVALID:
- assert_not_reached("Invalid match type?");
- }
+ snprintf(buf, sizeof(buf), "arg%u", c->type - BUS_MATCH_ARG);
+ bloom_add_pair(bloom, buf, c->value_str);
+ using_bloom = true;
+ break;
}
- if (using_bloom)
- sz += ALIGN8(offsetof(struct kdbus_item, data64) + BLOOM_SIZE);
-
- m = alloca0(sz);
- m->size = sz;
- m->cookie = cookie;
- m->src_id = src_id;
+ case BUS_MATCH_ARG_PATH...BUS_MATCH_ARG_PATH_LAST: {
+ char buf[sizeof("arg")-1 + 2 + sizeof("-slash-prefix")];
- item = m->items;
+ snprintf(buf, sizeof(buf), "arg%u-slash-prefix", c->type - BUS_MATCH_ARG_PATH);
+ bloom_add_pair(bloom, buf, c->value_str);
+ using_bloom = true;
+ break;
+ }
- if (using_bloom) {
- item->size = offsetof(struct kdbus_item, data64) + BLOOM_SIZE;
- item->type = KDBUS_MATCH_BLOOM;
- memcpy(item->data64, bloom, BLOOM_SIZE);
+ case BUS_MATCH_ARG_NAMESPACE...BUS_MATCH_ARG_NAMESPACE_LAST: {
+ char buf[sizeof("arg")-1 + 2 + sizeof("-dot-prefix")];
- item = KDBUS_PART_NEXT(item);
+ snprintf(buf, sizeof(buf), "arg%u-dot-prefix", c->type - BUS_MATCH_ARG_NAMESPACE);
+ bloom_add_pair(bloom, buf, c->value_str);
+ using_bloom = true;
+ break;
}
- if (sender) {
- item->size = offsetof(struct kdbus_item, str) + sender_length + 1;
- item->type = KDBUS_MATCH_SRC_NAME;
- memcpy(item->str, sender, sender_length + 1);
+ case BUS_MATCH_DESTINATION:
+ /* The bloom filter does not include
+ the destination, since it is only
+ available for broadcast messages
+ which do not carry a destination
+ since they are undirected. */
+ break;
+
+ case BUS_MATCH_ROOT:
+ case BUS_MATCH_VALUE:
+ case BUS_MATCH_LEAF:
+ case _BUS_MATCH_NODE_TYPE_MAX:
+ case _BUS_MATCH_NODE_TYPE_INVALID:
+ assert_not_reached("Invalid match type?");
}
+ }
+
+ if (using_bloom)
+ sz += ALIGN8(offsetof(struct kdbus_item, data64) + BLOOM_SIZE);
+
+ m = alloca0(sz);
+ m->size = sz;
+ m->cookie = cookie;
+ m->src_id = src_id;
+
+ item = m->items;
+
+ if (using_bloom) {
+ item->size = offsetof(struct kdbus_item, data64) + BLOOM_SIZE;
+ item->type = KDBUS_MATCH_BLOOM;
+ memcpy(item->data64, bloom, BLOOM_SIZE);
+
+ item = KDBUS_PART_NEXT(item);
+ }
+
+ if (sender) {
+ item->size = offsetof(struct kdbus_item, str) + sender_length + 1;
+ item->type = KDBUS_MATCH_SRC_NAME;
+ memcpy(item->str, sender, sender_length + 1);
+ }
+
+ r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
+ if (r < 0)
+ return -errno;
+
+ if (matches_name_change) {
+
+ /* If this match could theoretically match
+ * NameOwnerChanged messages, we need to
+ * install a second non-bloom filter explitly
+ * for it */
- r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
+ r = add_name_change_match(bus, cookie, name_change_arg[0], name_change_arg[1], name_change_arg[2]);
if (r < 0)
- return -errno;
+ return r;
+ }
- if (matches_name_change) {
+ return 0;
+}
- /* If this match could theoretically match
- * NameOwnerChanged messages, we need to
- * install a second non-bloom filter explitly
- * for it */
+static int bus_add_match_internal_dbus1(
+ sd_bus *bus,
+ const char *match) {
- r = add_name_change_match(bus, cookie, name_change_arg[0], name_change_arg[1], name_change_arg[2]);
- if (r < 0)
- return r;
- }
+ assert(bus);
+ assert(match);
- return 0;
- } else
- return sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "AddMatch",
- NULL,
- NULL,
- "s",
- match);
+ return sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "AddMatch",
+ NULL,
+ NULL,
+ "s",
+ match);
}
-int bus_remove_match_internal(
+int bus_add_match_internal(
sd_bus *bus,
const char *match,
+ struct bus_match_component *components,
+ unsigned n_components,
uint64_t cookie) {
+ assert(bus);
+ assert(match);
+
+ if (bus->is_kernel)
+ return bus_add_match_internal_kernel(bus, match, components, n_components, cookie);
+ else
+ return bus_add_match_internal_dbus1(bus, match);
+}
+
+static int bus_remove_match_internal_kernel(
+ sd_bus *bus,
+ const char *match,
+ uint64_t cookie) {
+
+ struct kdbus_cmd_match m;
int r;
assert(bus);
assert(match);
- if (bus->is_kernel) {
- struct kdbus_cmd_match m;
+ zero(m);
+ m.size = offsetof(struct kdbus_cmd_match, items);
+ m.cookie = cookie;
- zero(m);
- m.size = offsetof(struct kdbus_cmd_match, items);
- m.cookie = cookie;
+ r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_REMOVE, &m);
+ if (r < 0)
+ return -errno;
- r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_REMOVE, &m);
- if (r < 0)
- return -errno;
+ return 0;
+}
- return 0;
+static int bus_remove_match_internal_dbus1(
+ sd_bus *bus,
+ const char *match) {
- } else {
- return sd_bus_call_method(
- bus,
- "org.freedesktop.DBus",
- "/",
- "org.freedesktop.DBus",
- "RemoveMatch",
- NULL,
- NULL,
- "s",
- match);
- }
+ assert(bus);
+ assert(match);
+
+ return sd_bus_call_method(
+ bus,
+ "org.freedesktop.DBus",
+ "/",
+ "org.freedesktop.DBus",
+ "RemoveMatch",
+ NULL,
+ NULL,
+ "s",
+ match);
+}
+
+int bus_remove_match_internal(
+ sd_bus *bus,
+ const char *match,
+ uint64_t cookie) {
+
+ assert(bus);
+ assert(match);
+
+ if (bus->is_kernel)
+ return bus_remove_match_internal_kernel(bus, match, cookie);
+ else
+ return bus_remove_match_internal_dbus1(bus, match);
}
_public_ int sd_bus_get_owner_machine_id(sd_bus *bus, const char *name, sd_id128_t *machine) {
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-23 12:55:49 +0000