X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fimport%2Fimport.c;h=b3ebb353570fa09608878ff84e5859171c290037;hp=9b10de55599abb54f16d9bbf9bdbb29891a5784c;hb=8af3cf74df03f7528f9e2605ec7896a5daf0f711;hpb=a2e0337875addaf08225fbf9b231435ba12a88b5 diff --git a/src/import/import.c b/src/import/import.c index 9b10de555..b3ebb3535 100644 --- a/src/import/import.c +++ b/src/import/import.c @@ -25,32 +25,150 @@ #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."); + + sd_event_exit(event, EXIT_FAILURE); +} + +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.xz"); + if (!e) + e = endswith(name, ".tar.gz"); + if (!e) + e = endswith(name, ".tar.bz2"); + 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, 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."); - else - log_info_errno(error, "Operation failed: %m"); - sd_event_exit(event, error); + sd_event_exit(event, EXIT_FAILURE); } static int strip_raw_suffixes(const char *p, char **ret) { static const char suffixes[] = ".xz\0" + ".gz\0" + ".bz2\0" ".raw\0" ".qcow2\0" - ".img\0"; + ".img\0" + ".bin\0"; _cleanup_free_ char *q = NULL; @@ -86,7 +204,7 @@ 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; + _cleanup_free_ char *l = NULL, *ll = NULL; int r; url = argv[1]; @@ -98,44 +216,37 @@ 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--; - - p = e; - while (p > url && p[-1] != '/') - p--; + r = import_url_last_component(url, &l); + if (r < 0) + return log_error_errno(r, "Failed get final component of URL: %m"); - local = strndupa(p, e - p); + local = l; } if (isempty(local) || streq(local, "-")) local = NULL; if (local) { - const char *p; - - r = strip_raw_suffixes(local, &l); + r = strip_raw_suffixes(local, &ll); if (r < 0) return log_oom(); - local = l; + 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 @@ -153,7 +264,7 @@ 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"); @@ -163,7 +274,7 @@ static int pull_raw(int argc, char *argv[], void *userdata) { log_info("Exiting."); - return 0; + return r; } static void on_dkr_finished(DkrImport *import, int error, void *userdata) { @@ -173,7 +284,7 @@ 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); } @@ -189,6 +300,11 @@ 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]); @@ -274,11 +390,14 @@ 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; @@ -291,6 +410,7 @@ static int parse_argv(int argc, char *argv[]) { ARG_FORCE, ARG_DKR_INDEX_URL, ARG_IMAGE_ROOT, + ARG_VERIFY, }; static const struct option options[] = { @@ -299,6 +419,7 @@ 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 }, {} }; @@ -336,6 +457,15 @@ 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; @@ -350,8 +480,9 @@ 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 }, {} };