X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fnspawn%2Fnspawn.c;h=9d9238fdb51b191d45ce6b3b3c6ff7874d013834;hp=7c3d7b89beb03890db7fc73a77f66f7206514c05;hb=f1721625e7145977ba705e169580f2eb0002600c;hpb=f418f31d5042398344740f2d8ac4dc1c2583151c diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c index 7c3d7b89b..9d9238fdb 100644 --- a/src/nspawn/nspawn.c +++ b/src/nspawn/nspawn.c @@ -769,6 +769,15 @@ static int setup_resolv_conf(const char *dest) { return 0; } +static char* id128_format_as_uuid(sd_id128_t id, char s[37]) { + + snprintf(s, 37, + "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", + SD_ID128_FORMAT_VAL(id)); + + return s; +} + static int setup_boot_id(const char *dest) { _cleanup_free_ char *from = NULL, *to = NULL; sd_id128_t rnd = {}; @@ -794,10 +803,7 @@ static int setup_boot_id(const char *dest) { return r; } - snprintf(as_uuid, sizeof(as_uuid), - "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", - SD_ID128_FORMAT_VAL(rnd)); - char_array_0(as_uuid); + id128_format_as_uuid(rnd, as_uuid); r = write_string_file(from, as_uuid); if (r < 0) { @@ -986,7 +992,7 @@ static int setup_kmsg(const char *dest, int kmsg_socket) { /* Store away the fd in the socket, so that it stays open as * long as we run the child */ k = sendmsg(kmsg_socket, &mh, MSG_DONTWAIT|MSG_NOSIGNAL); - close_nointr_nofail(fd); + safe_close(fd); if (k < 0) { log_error("Failed to send FIFO fd: %m"); @@ -1486,13 +1492,7 @@ static int setup_veth(pid_t pid, char iface_name[IFNAMSIZ]) { return r; } - r = sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "veth"); - if (r < 0) { - log_error("Failed to append netlink kind: %s", strerror(-r)); - return r; - } - - r = sd_rtnl_message_open_container(m, IFLA_INFO_DATA); + r = sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA, "veth"); if (r < 0) { log_error("Failed to open netlink container: %s", strerror(-r)); return r; @@ -1581,6 +1581,12 @@ static int setup_bridge(const char veth_name[]) { return r; } + r = sd_rtnl_message_link_set_flags(m, IFF_UP, IFF_UP); + if (r < 0) { + log_error("Failed to set IFF_UP flag: %s", strerror(-r)); + return r; + } + r = sd_rtnl_message_append_string(m, IFLA_IFNAME, veth_name); if (r < 0) { log_error("Failed to add netlink interface name field: %s", strerror(-r)); @@ -1751,13 +1757,7 @@ static int setup_macvlan(pid_t pid) { return r; } - r = sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "macvlan"); - if (r < 0) { - log_error("Failed to append netlink kind: %s", strerror(-r)); - return r; - } - - r = sd_rtnl_message_open_container(m, IFLA_INFO_DATA); + r = sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA, "macvlan"); if (r < 0) { log_error("Failed to open netlink container: %s", strerror(-r)); return r; @@ -2298,8 +2298,7 @@ static void loop_remove(int nr, int *image_fd) { if (image_fd && *image_fd >= 0) { ioctl(*image_fd, LOOP_CLR_FD); - close_nointr_nofail(*image_fd); - *image_fd = -1; + *image_fd = safe_close(*image_fd); } control = open("/dev/loop-control", O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK); @@ -2334,9 +2333,9 @@ static int spawn_getent(const char *database, const char *key, pid_t *rpid) { _exit(EXIT_FAILURE); if (pipe_fds[0] > 2) - close_nointr_nofail(pipe_fds[0]); + safe_close(pipe_fds[0]); if (pipe_fds[1] > 2) - close_nointr_nofail(pipe_fds[1]); + safe_close(pipe_fds[1]); nullfd = open("/dev/null", O_RDWR); if (nullfd < 0) @@ -2349,7 +2348,7 @@ static int spawn_getent(const char *database, const char *key, pid_t *rpid) { _exit(EXIT_FAILURE); if (nullfd > 2) - close_nointr_nofail(nullfd); + safe_close(nullfd); reset_all_signal_handlers(); close_all_fds(NULL, 0); @@ -2359,8 +2358,7 @@ static int spawn_getent(const char *database, const char *key, pid_t *rpid) { _exit(EXIT_FAILURE); } - close_nointr_nofail(pipe_fds[1]); - pipe_fds[1] = -1; + pipe_fds[1] = safe_close(pipe_fds[1]); *rpid = pid; @@ -2368,15 +2366,13 @@ static int spawn_getent(const char *database, const char *key, pid_t *rpid) { } static int change_uid_gid(char **_home) { - - _cleanup_strv_free_ char **passwd = NULL; char line[LINE_MAX], *w, *x, *state, *u, *g, *h; _cleanup_free_ uid_t *uids = NULL; _cleanup_free_ char *home = NULL; _cleanup_fclose_ FILE *f = NULL; _cleanup_close_ int fd = -1; unsigned n_uids = 0; - size_t sz, l; + size_t sz = 0, l; uid_t uid; gid_t gid; pid_t pid; @@ -2580,7 +2576,7 @@ int main(int argc, char *argv[]) { _cleanup_free_ char *kdbus_domain = NULL, *device_path = NULL, *root_device = NULL, *home_device = NULL, *srv_device = NULL; bool root_device_rw = true, home_device_rw = true, srv_device_rw = true; _cleanup_close_ int master = -1, kdbus_fd = -1, image_fd = -1; - _cleanup_close_pipe_ int kmsg_socket_pair[2] = { -1, -1 }; + _cleanup_close_pair_ int kmsg_socket_pair[2] = { -1, -1 }; _cleanup_fdset_free_ FDSet *fds = NULL; int r = EXIT_FAILURE, k, n_fd_passed, loop_nr = -1; const char *console = NULL; @@ -2804,15 +2800,13 @@ int main(int argc, char *argv[]) { if (envp[n_env]) n_env ++; - close_nointr_nofail(master); - master = -1; + master = safe_close(master); close_nointr(STDIN_FILENO); close_nointr(STDOUT_FILENO); close_nointr(STDERR_FILENO); - close_nointr_nofail(kmsg_socket_pair[0]); - kmsg_socket_pair[0] = -1; + kmsg_socket_pair[0] = safe_close(kmsg_socket_pair[0]); reset_all_signal_handlers(); @@ -2822,7 +2816,7 @@ int main(int argc, char *argv[]) { k = open_terminal(console, O_RDWR); if (k != STDIN_FILENO) { if (k >= 0) { - close_nointr_nofail(k); + safe_close(k); k = -EINVAL; } @@ -2895,8 +2889,7 @@ int main(int argc, char *argv[]) { if (setup_kmsg(arg_directory, kmsg_socket_pair[1]) < 0) goto child_fail; - close_nointr_nofail(kmsg_socket_pair[1]); - kmsg_socket_pair[1] = -1; + kmsg_socket_pair[1] = safe_close(kmsg_socket_pair[1]); if (setup_boot_id(arg_directory) < 0) goto child_fail; @@ -2923,8 +2916,7 @@ int main(int argc, char *argv[]) { * it can cgroupify us to that we lack access * to certain devices and resources. */ eventfd_write(child_ready_fd, 1); - close_nointr_nofail(child_ready_fd); - child_ready_fd = -1; + child_ready_fd = safe_close(child_ready_fd); if (chdir(arg_directory) < 0) { log_error("chdir(%s) failed: %m", arg_directory); @@ -2968,7 +2960,9 @@ int main(int argc, char *argv[]) { } if (!sd_id128_equal(arg_uuid, SD_ID128_NULL)) { - if (asprintf((char**)(envp + n_env++), "container_uuid=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(arg_uuid)) < 0) { + char as_uuid[37]; + + if (asprintf((char**)(envp + n_env++), "container_uuid=%s", id128_format_as_uuid(arg_uuid, as_uuid)) < 0) { log_oom(); goto child_fail; } @@ -3025,8 +3019,7 @@ int main(int argc, char *argv[]) { /* Wait until the parent is ready with the setup, too... */ eventfd_read(parent_ready_fd, &x); - close_nointr_nofail(parent_ready_fd); - parent_ready_fd = -1; + parent_ready_fd = safe_close(parent_ready_fd); if (arg_boot) { char **a; @@ -3064,7 +3057,7 @@ int main(int argc, char *argv[]) { fds = NULL; /* Wait until the child reported that it is ready with - * all it needs to do with priviliges. After we got + * all it needs to do with privileges. After we got * the notification we can make the process join its * cgroup which might limit what it can do */ eventfd_read(child_ready_fd, &x);