-static int kdbus_name_info(
- sd_bus *bus,
- const char *name,
- uint64_t mask,
- char **owner,
- sd_bus_creds **creds) {
-
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
- _cleanup_bus_creds_unref_ sd_bus_creds *c = NULL;
- _cleanup_free_ struct kdbus_cmd_name_info *cmd = NULL;
- _cleanup_free_ char *unique = NULL;
- struct kdbus_name_info *name_info;
- struct kdbus_item *item;
- uint64_t attach_flags, m;
- size_t size;
- int r;
-
- r = kdbus_translate_attach_flags(mask, &attach_flags);
- if (r < 0)
- return r;
-
- size = sizeof(struct kdbus_cmd_name_info) + strlen(name) + 1;
- cmd = malloc0(size);
- if (!cmd)
- return -ENOMEM;
-
- cmd ->size = size;
- cmd->attach_flags = attach_flags;
- strcpy(cmd->name, name);
-
- r = ioctl(sd_bus_get_fd(bus), KDBUS_CMD_NAME_INFO, cmd);
- if (r < 0)
- return -errno;
-
- name_info = (struct kdbus_name_info *) ((uint8_t *) bus->kdbus_buffer + cmd->offset);
-
- asprintf(&unique, ":1.%llu", (unsigned long long) name_info->id);
-
- c = bus_creds_new();
- if (!c)
- return -ENOMEM;
-
- KDBUS_PART_FOREACH(item, name_info, items) {
- switch (item->type) {
- case KDBUS_ITEM_CREDS:
- m = (SD_BUS_CREDS_UID | SD_BUS_CREDS_GID | SD_BUS_CREDS_PID |
- SD_BUS_CREDS_TID | SD_BUS_CREDS_PID_STARTTIME) & mask;
-
- if (m) {
- c->uid = item->creds.uid;
- c->pid = item->creds.pid;
- c->gid = item->creds.gid;
- c->tid = item->creds.tid;
- c->pid_starttime = item->creds.starttime;
- c->mask |= m;
- }
- break;
-
- case KDBUS_ITEM_PID_COMM:
- if (mask & SD_BUS_CREDS_COMM) {
- c->comm = strdup(item->str);
- if (!c->comm)
- return -ENOMEM;
-
- c->mask |= SD_BUS_CREDS_COMM;
- }
- break;
-
- case KDBUS_ITEM_TID_COMM:
- if (mask & SD_BUS_CREDS_TID_COMM) {
- c->tid_comm = strdup(item->str);
- if (!c->tid_comm)
- return -ENOMEM;
-
- c->mask |= SD_BUS_CREDS_TID_COMM;
- }
- break;
-
- case KDBUS_ITEM_EXE:
- if (mask & SD_BUS_CREDS_EXE) {
- c->exe = strdup(item->str);
- if (!c->exe)
- return -ENOMEM;
-
- c->mask |= SD_BUS_CREDS_EXE;
- }
- break;
-
- case KDBUS_ITEM_CMDLINE:
- if (mask & SD_BUS_CREDS_CMDLINE) {
- c->cmdline_length = item->size - KDBUS_PART_HEADER_SIZE;
- c->cmdline = memdup(item->data, c->cmdline_length);
- if (!c->cmdline)
- return -ENOMEM;
-
- c->mask |= SD_BUS_CREDS_CMDLINE;
- }
- break;
-
- case KDBUS_ITEM_CGROUP:
- m = (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) & mask;
-
- if (m) {
- c->cgroup = strdup(item->str);
- if (!c->cgroup)
- return -ENOMEM;
-
- c->mask |= m;
- }
- break;
-
- case KDBUS_ITEM_CAPS:
- m = (SD_BUS_CREDS_EFFECTIVE_CAPS | SD_BUS_CREDS_PERMITTED_CAPS |
- SD_BUS_CREDS_INHERITABLE_CAPS | SD_BUS_CREDS_BOUNDING_CAPS) & mask;
-
- if (m) {
- c->capability_size = item->size - KDBUS_PART_HEADER_SIZE;
- c->capability = memdup(item->data, c->capability_size);
- if (!c->capability)
- return -ENOMEM;
-
- c->mask |= m;
- }
- break;
-
- case KDBUS_ITEM_SECLABEL:
- if (mask & SD_BUS_CREDS_SELINUX_CONTEXT) {
- c->label = strdup(item->str);
- if (!c->label)
- return -ENOMEM;
-
- c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT;
- }
- break;
-
- case KDBUS_ITEM_AUDIT:
- m = (SD_BUS_CREDS_AUDIT_SESSION_ID | SD_BUS_CREDS_AUDIT_LOGIN_UID) & mask;
-
- if (m) {
- c->audit_session_id = item->audit.sessionid;
- c->audit_login_uid = item->audit.loginuid;
- c->mask |= m;
- }
- break;
- }
- }
-
- r = ioctl(sd_bus_get_fd(bus), KDBUS_CMD_FREE, &cmd->offset);
- if (r < 0)
- return -errno;
-
- if (creds) {
- *creds = c;
- c = NULL;
- }
-
- if (owner) {
- *owner = unique;
- unique = NULL;
- }
-
- return 0;
-}
-
-_public_ int sd_bus_get_owner(
- sd_bus *bus,
- const char *name,
- uint64_t mask,
- char **owner,
- sd_bus_creds **creds) {
-
- assert_return(bus, -EINVAL);
- assert_return(name, -EINVAL);
- assert_return(mask <= _SD_BUS_CREDS_MAX, -ENOTSUP);
- assert_return(mask == 0 || creds, -EINVAL);
- assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
- assert_return(!bus_pid_changed(bus), -ECHILD);
-
- if (bus->is_kernel)
- return kdbus_name_info(bus, name, mask, owner, creds);
-
- return sd_bus_get_owner_dbus(bus, name, mask, owner, creds);
-}
-