int bus_image_method_remove( sd_bus_message *message, void *userdata, sd_bus_error *error) { Image *image = userdata; Manager *m = image->userdata; int r; assert(message); assert(image); r = bus_verify_polkit_async( message, CAP_SYS_ADMIN, "org.freedesktop.machine1.manage-images", false, UID_INVALID, &m->polkit_registry, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ r = image_remove(image); if (r < 0) return r; return sd_bus_reply_method_return(message, NULL); }
/* Destroy the image structure and frees all its memory. */ void image_destroy(image_t *image) { if (image) { image_remove(image); if (image->map_col) { free(image->map_col); } free(image); } }
int bus_image_method_remove( sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 }; Image *image = userdata; Manager *m = image->userdata; pid_t child; int r; assert(message); assert(image); if (m->n_operations >= OPERATIONS_MAX) return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing operations."); r = bus_verify_polkit_async( message, CAP_SYS_ADMIN, "org.freedesktop.machine1.manage-images", NULL, false, UID_INVALID, &m->polkit_registry, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) return sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m"); child = fork(); if (child < 0) return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); if (child == 0) { errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]); r = image_remove(image); if (r < 0) { (void) write(errno_pipe_fd[1], &r, sizeof(r)); _exit(EXIT_FAILURE); } _exit(EXIT_SUCCESS); } errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]); r = operation_new(m, NULL, child, message, errno_pipe_fd[0]); if (r < 0) { (void) sigkill_wait(child); return r; } errno_pipe_fd[0] = -1; return 1; }
int bus_image_common_remove( Manager *m, sd_bus_message *message, const char *name_or_path, Image *image, sd_bus_error *error) { _cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 }; _cleanup_(sigkill_waitp) pid_t child = 0; PortableState state; int r; assert(message); assert(name_or_path || image); if (!m) { assert(image); m = image->userdata; } if (m->n_operations >= OPERATIONS_MAX) return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing operations."); r = bus_image_acquire(m, message, name_or_path, image, BUS_IMAGE_AUTHENTICATE_ALL, "org.freedesktop.portable1.manage-images", &image, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ r = portable_get_state( sd_bus_message_get_bus(message), image->path, 0, &state, error); if (r < 0) return r; if (state != PORTABLE_DETACHED) return sd_bus_error_set_errnof(error, EBUSY, "Image '%s' is not detached, refusing.", image->path); if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) return sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m"); r = safe_fork("(sd-imgrm)", FORK_RESET_SIGNALS, &child); if (r < 0) return sd_bus_error_set_errnof(error, r, "Failed to fork(): %m"); if (r == 0) { errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]); r = image_remove(image); if (r < 0) { (void) write(errno_pipe_fd[1], &r, sizeof(r)); _exit(EXIT_FAILURE); } _exit(EXIT_SUCCESS); } errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]); r = operation_new(m, child, message, errno_pipe_fd[0], NULL); if (r < 0) return r; child = 0; errno_pipe_fd[0] = -1; return 1; }