X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fimport%2Fimport.c;h=9bd8b77477684fd1dd98d4b9efd517983424162a;hb=09d46cfd41d14f65cb5fe8798a6f7d964700fcd0;hp=8b9ca4f724044104c430f4833a4adcc44d0e0acd;hpb=ea1ae8c38e669351b909cf8cc0c1e6fd140c1b58;p=elogind.git diff --git a/src/import/import.c b/src/import/import.c index 8b9ca4f72..9bd8b7747 100644 --- a/src/import/import.c +++ b/src/import/import.c @@ -25,22 +25,203 @@ #include "event-util.h" #include "verbs.h" #include "build.h" +#include "machine-image.h" +#include "import-tar.h" +#include "import-raw.h" #include "import-dkr.h" +#include "import-util.h" static bool arg_force = false; - +static const char *arg_image_root = "/var/lib/machines"; +static ImportVerify arg_verify = IMPORT_VERIFY_SIGNATURE; static const char* arg_dkr_index_url = DEFAULT_DKR_INDEX_URL; -static void on_finished(DkrImport *import, int error, void *userdata) { +static int interrupt_signal_handler(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { + log_notice("Transfer aborted."); + sd_event_exit(sd_event_source_get_event(s), EINTR); + return 0; +} + +static void on_tar_finished(TarImport *import, int error, void *userdata) { + sd_event *event = userdata; + assert(import); + + if (error == 0) + log_info("Operation completed successfully."); + + sd_event_exit(event, abs(error)); +} + +static int pull_tar(int argc, char *argv[], void *userdata) { + _cleanup_(tar_import_unrefp) TarImport *import = NULL; + _cleanup_event_unref_ sd_event *event = NULL; + const char *url, *local; + _cleanup_free_ char *l = NULL, *ll = NULL; + int r; + + url = argv[1]; + if (!http_url_is_valid(url)) { + log_error("URL '%s' is not valid.", url); + return -EINVAL; + } + + if (argc >= 3) + local = argv[2]; + else { + r = import_url_last_component(url, &l); + if (r < 0) + return log_error_errno(r, "Failed get final component of URL: %m"); + + local = l; + } + + if (isempty(local) || streq(local, "-")) + local = NULL; + + if (local) { + r = tar_strip_suffixes(local, &ll); + if (r < 0) + return log_oom(); + + local = ll; + + if (!machine_name_is_valid(local)) { + log_error("Local image name '%s' is not valid.", local); + return -EINVAL; + } + + if (!arg_force) { + r = image_find(local, NULL); + if (r < 0) + return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local); + else if (r > 0) { + log_error_errno(EEXIST, "Image '%s' already exists.", local); + return -EEXIST; + } + } + + log_info("Pulling '%s', saving as '%s'.", url, local); + } else + log_info("Pulling '%s'.", url); + + r = sd_event_default(&event); + if (r < 0) + return log_error_errno(r, "Failed to allocate event loop: %m"); + + assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0); + sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL); + sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL); + + r = tar_import_new(&import, event, arg_image_root, on_tar_finished, event); + if (r < 0) + return log_error_errno(r, "Failed to allocate importer: %m"); + + r = tar_import_pull(import, url, local, arg_force, arg_verify); + if (r < 0) + return log_error_errno(r, "Failed to pull image: %m"); + + r = sd_event_loop(event); + if (r < 0) + return log_error_errno(r, "Failed to run event loop: %m"); + + log_info("Exiting."); + return -r; +} + +static void on_raw_finished(RawImport *import, int error, void *userdata) { + sd_event *event = userdata; + assert(import); + + if (error == 0) + log_info("Operation completed successfully."); + + sd_event_exit(event, abs(error)); +} + +static int pull_raw(int argc, char *argv[], void *userdata) { + _cleanup_(raw_import_unrefp) RawImport *import = NULL; + _cleanup_event_unref_ sd_event *event = NULL; + const char *url, *local; + _cleanup_free_ char *l = NULL, *ll = NULL; + int r; + + url = argv[1]; + if (!http_url_is_valid(url)) { + log_error("URL '%s' is not valid.", url); + return -EINVAL; + } + + if (argc >= 3) + local = argv[2]; + else { + r = import_url_last_component(url, &l); + if (r < 0) + return log_error_errno(r, "Failed get final component of URL: %m"); + + local = l; + } + + if (isempty(local) || streq(local, "-")) + local = NULL; + + if (local) { + r = raw_strip_suffixes(local, &ll); + if (r < 0) + return log_oom(); + + local = ll; + + if (!machine_name_is_valid(local)) { + log_error("Local image name '%s' is not valid.", local); + return -EINVAL; + } + + if (!arg_force) { + r = image_find(local, NULL); + if (r < 0) + return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local); + else if (r > 0) { + log_error_errno(EEXIST, "Image '%s' already exists.", local); + return -EEXIST; + } + } + + log_info("Pulling '%s', saving as '%s'.", url, local); + } else + log_info("Pulling '%s'.", url); + + r = sd_event_default(&event); + if (r < 0) + return log_error_errno(r, "Failed to allocate event loop: %m"); + + assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0); + sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL); + sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL); + + r = raw_import_new(&import, event, arg_image_root, on_raw_finished, event); + if (r < 0) + return log_error_errno(r, "Failed to allocate importer: %m"); + + r = raw_import_pull(import, url, local, arg_force, arg_verify); + if (r < 0) + return log_error_errno(r, "Failed to pull image: %m"); + + r = sd_event_loop(event); + if (r < 0) + return log_error_errno(r, "Failed to run event loop: %m"); + + log_info("Exiting."); + return -r; +} + +static void on_dkr_finished(DkrImport *import, int error, void *userdata) { sd_event *event = userdata; assert(import); if (error == 0) log_info("Operation completed successfully."); - else - log_info_errno(error, "Operation failed: %m"); - sd_event_exit(event, error); + sd_event_exit(event, abs(error)); } static int pull_dkr(int argc, char *argv[], void *userdata) { @@ -54,6 +235,11 @@ static int pull_dkr(int argc, char *argv[], void *userdata) { return -EINVAL; } + if (arg_verify != IMPORT_VERIFY_NO) { + log_error("Imports from dkr do not support image verification, please pass --verify=no."); + return -EINVAL; + } + tag = strchr(argv[1], ':'); if (tag) { name = strndupa(argv[1], tag - argv[1]); @@ -63,6 +249,16 @@ static int pull_dkr(int argc, char *argv[], void *userdata) { tag = "latest"; } + if (!dkr_name_is_valid(name)) { + log_error("Remote name '%s' is not valid.", name); + return -EINVAL; + } + + if (!dkr_tag_is_valid(tag)) { + log_error("Tag name '%s' is not valid.", tag); + return -EINVAL; + } + if (argc >= 3) local = argv[2]; else { @@ -73,35 +269,24 @@ static int pull_dkr(int argc, char *argv[], void *userdata) { local = name; } - if (streq(local, "-") || isempty(local)) + if (isempty(local) || streq(local, "-")) local = NULL; - if (!dkr_name_is_valid(name)) { - log_error("Remote name '%s' is not valid.", name); - return -EINVAL; - } - - if (!dkr_tag_is_valid(tag)) { - log_error("Tag name '%s' is not valid.", tag); - return -EINVAL; - } - if (local) { - const char *p; - - if (!machine_name_is_valid(tag)) { + if (!machine_name_is_valid(local)) { log_error("Local image name '%s' is not valid.", local); return -EINVAL; } - p = strappenda("/var/lib/container/", local); - if (laccess(p, F_OK) >= 0) { - if (!arg_force) { - log_info("Image '%s' already exists.", local); - return 0; + if (!arg_force) { + r = image_find(local, NULL); + if (r < 0) + return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local); + else if (r > 0) { + log_error_errno(EEXIST, "Image '%s' already exists.", local); + return -EEXIST; } - } else if (errno != ENOENT) - return log_error_errno(errno, "Can't check if image '%s' already exists: %m", local); + } log_info("Pulling '%s' with tag '%s', saving as '%s'.", name, tag, local); } else @@ -112,10 +297,10 @@ static int pull_dkr(int argc, char *argv[], void *userdata) { return log_error_errno(r, "Failed to allocate event loop: %m"); assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0); - sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL); - sd_event_add_signal(event, NULL, SIGINT, NULL, NULL); + sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL); + sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL); - r = dkr_import_new(&import, event, arg_dkr_index_url, on_dkr_finished, event); + r = dkr_import_new(&import, event, arg_dkr_index_url, arg_image_root, on_dkr_finished, event); if (r < 0) return log_error_errno(r, "Failed to allocate importer: %m"); @@ -128,8 +313,7 @@ static int pull_dkr(int argc, char *argv[], void *userdata) { return log_error_errno(r, "Failed to run event loop: %m"); log_info("Exiting."); - - return 0; + return -r; } static int help(int argc, char *argv[], void *userdata) { @@ -139,9 +323,14 @@ static int help(int argc, char *argv[], void *userdata) { " -h --help Show this help\n" " --version Show package version\n" " --force Force creation of image\n" + " --verify= Verify downloaded image, one of: 'no',\n" + " 'checksum', 'signature'.\n" + " --image-root= Image root directory\n" " --dkr-index-url=URL Specify index URL to use for downloads\n\n" "Commands:\n" - " pull-dkr REMOTE [NAME] Download an image\n", + " pull-tar URL [NAME] Download a TAR image\n" + " pull-raw URL [NAME] Download a RAW image\n" + " pull-dkr REMOTE [NAME] Download a DKR image\n", program_invocation_short_name); return 0; @@ -153,6 +342,8 @@ static int parse_argv(int argc, char *argv[]) { ARG_VERSION = 0x100, ARG_FORCE, ARG_DKR_INDEX_URL, + ARG_IMAGE_ROOT, + ARG_VERIFY, }; static const struct option options[] = { @@ -160,6 +351,8 @@ static int parse_argv(int argc, char *argv[]) { { "version", no_argument, NULL, ARG_VERSION }, { "force", no_argument, NULL, ARG_FORCE }, { "dkr-index-url", required_argument, NULL, ARG_DKR_INDEX_URL }, + { "image-root", required_argument, NULL, ARG_IMAGE_ROOT }, + { "verify", required_argument, NULL, ARG_VERIFY }, {} }; @@ -185,7 +378,7 @@ static int parse_argv(int argc, char *argv[]) { break; case ARG_DKR_INDEX_URL: - if (!dkr_url_is_valid(optarg)) { + if (!http_url_is_valid(optarg)) { log_error("Index URL is not valid: %s", optarg); return -EINVAL; } @@ -193,6 +386,19 @@ static int parse_argv(int argc, char *argv[]) { arg_dkr_index_url = optarg; break; + case ARG_IMAGE_ROOT: + arg_image_root = optarg; + break; + + case ARG_VERIFY: + arg_verify = import_verify_from_string(optarg); + if (arg_verify < 0) { + log_error("Invalid verification setting '%s'", optarg); + return -EINVAL; + } + + break; + case '?': return -EINVAL; @@ -207,6 +413,8 @@ static int import_main(int argc, char *argv[]) { static const Verb verbs[] = { { "help", VERB_ANY, VERB_ANY, 0, help }, + { "pull-tar", 2, 3, 0, pull_tar }, + { "pull-raw", 2, 3, 0, pull_raw }, { "pull-dkr", 2, 3, 0, pull_dkr }, {} };