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authorLennart Poettering <lennart@poettering.net>2015-01-21 04:03:33 +0100
committerLennart Poettering <lennart@poettering.net>2015-01-21 04:03:54 +0100
commit0100b6e1bf682385e0939d4dd7be815d5cdf0e1a (patch)
tree3a0846deb7612b9c02056b7ce0f6377bbac3ee83 /src/import/import-tar.c
parent98c3800184cfc961b19d605f69d555d0cea8bb7a (diff)
import: also add verification support to tar importer
Diffstat (limited to 'src/import/import-tar.c')
-rw-r--r--src/import/import-tar.c75
1 files changed, 62 insertions, 13 deletions
diff --git a/src/import/import-tar.c b/src/import/import-tar.c
index e8afc269b7..2a65f89167 100644
--- a/src/import/import-tar.c
+++ b/src/import/import-tar.c
@@ -41,6 +41,8 @@ struct TarImport {
char *image_root;
ImportJob *tar_job;
+ ImportJob *checksum_job;
+ ImportJob *signature_job;
TarImportFinished on_finished;
void *userdata;
@@ -52,18 +54,22 @@ struct TarImport {
char *temp_path;
char *final_path;
+
+ ImportVerify verify;
};
TarImport* tar_import_unref(TarImport *i) {
if (!i)
return NULL;
- if (i->tar_pid > 0) {
- kill(i->tar_pid, SIGKILL);
- wait_for_terminate(i->tar_pid, NULL);
+ if (i->tar_pid > 1) {
+ (void) kill(i->tar_pid, SIGKILL);
+ (void) wait_for_terminate(i->tar_pid, NULL);
}
import_job_unref(i->tar_job);
+ import_job_unref(i->checksum_job);
+ import_job_unref(i->signature_job);
curl_glue_unref(i->glue);
sd_event_unref(i->event);
@@ -77,7 +83,6 @@ TarImport* tar_import_unref(TarImport *i) {
free(i->final_path);
free(i->image_root);
free(i->local);
-
free(i);
return NULL;
@@ -135,12 +140,12 @@ static int tar_import_make_local_copy(TarImport *i) {
r = import_make_path(i->tar_job->url, i->tar_job->etag, i->image_root, ".tar-", NULL, &i->final_path);
if (r < 0)
return log_oom();
-
- r = import_make_local_copy(i->final_path, i->image_root, i->local, i->force_local);
- if (r < 0)
- return r;
}
+ r = import_make_local_copy(i->final_path, i->image_root, i->local, i->force_local);
+ if (r < 0)
+ return r;
+
return 0;
}
@@ -153,6 +158,13 @@ static void tar_import_job_on_finished(ImportJob *j) {
i = j->userdata;
if (j->error != 0) {
+ if (j == i->checksum_job)
+ log_error_errno(j->error, "Failed to retrieve SHA256 checksum, cannot verify. (Try --verify=no?)");
+ else if (j == i->signature_job)
+ log_error_errno(j->error, "Failed to retrieve signature file, cannot verify. (Try --verify=no?)");
+ else
+ log_error_errno(j->error, "Failed to retrieve image file. (Wrong URL?)");
+
r = j->error;
goto finish;
}
@@ -161,7 +173,14 @@ static void tar_import_job_on_finished(ImportJob *j) {
* successfully, or the download was skipped because we
* already have the etag. */
- j->disk_fd = safe_close(j->disk_fd);
+ if (i->tar_job->state != IMPORT_JOB_DONE)
+ return;
+ if (i->checksum_job && i->checksum_job->state != IMPORT_JOB_DONE)
+ return;
+ if (i->signature_job && i->signature_job->state != IMPORT_JOB_DONE)
+ return;
+
+ j->disk_fd = safe_close(i->tar_job->disk_fd);
if (i->tar_pid > 0) {
r = wait_for_terminate_and_warn("tar", i->tar_pid, true);
@@ -170,7 +189,13 @@ static void tar_import_job_on_finished(ImportJob *j) {
goto finish;
}
- if (i->temp_path) {
+ if (!i->tar_job->etag_exists) {
+ /* This is a new download, verify it, and move it into place */
+
+ r = import_verify(i->tar_job, i->checksum_job, i->signature_job);
+ if (r < 0)
+ goto finish;
+
r = import_make_read_only(i->temp_path);
if (r < 0)
goto finish;
@@ -233,6 +258,8 @@ static int tar_import_job_on_open_disk(ImportJob *j) {
if (i->tar_pid == 0) {
int null_fd;
+ /* Child */
+
reset_all_signal_handlers();
reset_signal_mask();
assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
@@ -274,7 +301,7 @@ static int tar_import_job_on_open_disk(ImportJob *j) {
return 0;
}
-int tar_import_pull(TarImport *i, const char *url, const char *local, bool force_local) {
+int tar_import_pull(TarImport *i, const char *url, const char *local, bool force_local, ImportVerify verify) {
int r;
assert(i);
@@ -291,8 +318,8 @@ int tar_import_pull(TarImport *i, const char *url, const char *local, bool force
r = free_and_strdup(&i->local, local);
if (r < 0)
return r;
-
i->force_local = force_local;
+ i->verify = verify;
r = import_job_new(&i->tar_job, url, i->glue, i);
if (r < 0)
@@ -300,10 +327,32 @@ int tar_import_pull(TarImport *i, const char *url, const char *local, bool force
i->tar_job->on_finished = tar_import_job_on_finished;
i->tar_job->on_open_disk = tar_import_job_on_open_disk;
+ i->tar_job->calc_checksum = verify != IMPORT_VERIFY_NO;
r = import_find_old_etags(url, i->image_root, DT_DIR, ".tar-", NULL, &i->tar_job->old_etags);
if (r < 0)
return r;
- return import_job_begin(i->tar_job);
+ r = import_make_verification_jobs(&i->checksum_job, &i->signature_job, verify, url, i->glue, tar_import_job_on_finished, i);
+ if (r < 0)
+ return r;
+
+ r = import_job_begin(i->tar_job);
+ if (r < 0)
+ return r;
+
+ if (i->checksum_job) {
+ r = import_job_begin(i->checksum_job);
+ if (r < 0)
+ return r;
+ }
+
+ if (i->signature_job) {
+ r = import_job_begin(i->signature_job);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+
}