X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fimport%2Fimport.c;h=62e3118a7fab2d905bc24c46939e5062906c8210;hp=e457adf6294f640f24d49ed296011ecddf621572;hb=c660bb094288d89762cdbedd08661127988e5548;hpb=49bb233bb734536b9617d838f09a7bf9b8336003 diff --git a/src/import/import.c b/src/import/import.c index e457adf62..62e3118a7 100644 --- a/src/import/import.c +++ b/src/import/import.c @@ -25,14 +25,131 @@ #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_tar_finished(TarImport *import, int error, void *userdata) { + sd_event *event = userdata; + assert(import); + + if (error == 0) + log_info("Operation completed successfully."); + else + log_error_errno(error, "Operation failed: %m"); + + sd_event_exit(event, error); +} + +static int strip_tar_suffixes(const char *name, char **ret) { + const char *e; + char *s; + + e = endswith(name, ".tar"); + if (!e) + e = endswith(name, ".tar.gz"); + if (!e) + e = endswith(name, ".tar.xz"); + if (!e) + e = endswith(name, ".tgz"); + if (!e) + e = strchr(name, 0); + + if (e <= name) + return -EINVAL; + + s = strndup(name, e - name); + if (!s) + return -ENOMEM; + + *ret = s; + return 0; +} + +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 = strip_tar_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, NULL, NULL); + sd_event_add_signal(event, NULL, SIGINT, NULL, 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); + 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 0; +} + static void on_raw_finished(RawImport *import, int error, void *userdata) { sd_event *event = userdata; assert(import); @@ -40,19 +157,59 @@ static void on_raw_finished(RawImport *import, int error, void *userdata) { if (error == 0) log_info("Operation completed successfully."); else - log_info_errno(error, "Operation failed: %m"); + log_error_errno(error, "Operation failed: %m"); sd_event_exit(event, error); } +static int strip_raw_suffixes(const char *p, char **ret) { + static const char suffixes[] = + ".xz\0" + ".gz\0" + ".raw\0" + ".qcow2\0" + ".img\0" + ".bin\0"; + + _cleanup_free_ char *q = NULL; + + q = strdup(p); + if (!q) + return -ENOMEM; + + for (;;) { + const char *sfx; + bool changed = false; + + NULSTR_FOREACH(sfx, suffixes) { + char *e; + + e = endswith(q, sfx); + if (e) { + *e = 0; + changed = true; + } + } + + if (!changed) + break; + } + + *ret = q; + q = NULL; + + return 0; +} + 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, *suffix; + const char *url, *local; + _cleanup_free_ char *l = NULL, *ll = NULL; int r; url = argv[1]; - if (!raw_url_is_valid(url)) { + if (!http_url_is_valid(url)) { log_error("URL '%s' is not valid.", url); return -EINVAL; } @@ -60,46 +217,37 @@ static int pull_raw(int argc, char *argv[], void *userdata) { if (argc >= 3) local = argv[2]; else { - const char *e, *p; - - e = url + strlen(url); - while (e > url && e[-1] == '/') - e--; + r = import_url_last_component(url, &l); + if (r < 0) + return log_error_errno(r, "Failed get final component of URL: %m"); - p = e; - while (p > url && p[-1] != '/') - p--; - - local = strndupa(p, e - p); + local = l; } if (isempty(local) || streq(local, "-")) local = NULL; if (local) { - const char *p; + r = strip_raw_suffixes(local, &ll); + if (r < 0) + return log_oom(); - suffix = endswith(local, ".raw.xz"); - if (!suffix) - suffix = endswith(local, ".raw"); - if (!suffix) - suffix = endswith(local, ".xz"); - if (suffix) - local = strndupa(local, suffix - local); + local = ll; if (!machine_name_is_valid(local)) { log_error("Local image name '%s' is not valid.", local); return -EINVAL; } - p = strappenda(arg_image_root, "/", local, ".raw"); - 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', saving as '%s'.", url, local); } else @@ -117,7 +265,7 @@ static int pull_raw(int argc, char *argv[], void *userdata) { if (r < 0) return log_error_errno(r, "Failed to allocate importer: %m"); - r = raw_import_pull(import, url, local, arg_force); + r = raw_import_pull(import, url, local, arg_force, arg_verify); if (r < 0) return log_error_errno(r, "Failed to pull image: %m"); @@ -137,7 +285,7 @@ static void on_dkr_finished(DkrImport *import, int error, void *userdata) { if (error == 0) log_info("Operation completed successfully."); else - log_info_errno(error, "Operation failed: %m"); + log_error_errno(error, "Operation failed: %m"); sd_event_exit(event, error); } @@ -153,6 +301,11 @@ 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]); @@ -238,11 +391,14 @@ 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', 'sum'\n" + " '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 a DKR image\n" - " pull-raw URL [NAME] Download a RAW 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; @@ -255,6 +411,7 @@ static int parse_argv(int argc, char *argv[]) { ARG_FORCE, ARG_DKR_INDEX_URL, ARG_IMAGE_ROOT, + ARG_VERIFY, }; static const struct option options[] = { @@ -263,6 +420,7 @@ static int parse_argv(int argc, char *argv[]) { { "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 }, {} }; @@ -300,6 +458,15 @@ static int parse_argv(int argc, char *argv[]) { 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; @@ -314,8 +481,9 @@ static int import_main(int argc, char *argv[]) { static const Verb verbs[] = { { "help", VERB_ANY, VERB_ANY, 0, help }, - { "pull-dkr", 2, 3, 0, pull_dkr }, + { "pull-tar", 2, 3, 0, pull_tar }, { "pull-raw", 2, 3, 0, pull_raw }, + { "pull-dkr", 2, 3, 0, pull_dkr }, {} };