#include "machine-pool.h"
#include "pull-job.h"
-/* Grow the /var/lib/machines directory after each 10MiB written */
-#define PULL_GROW_INTERVAL_BYTES (UINT64_C(10) * UINT64_C(1024) * UINT64_C(1024))
-
PullJob* pull_job_unref(PullJob *j) {
if (!j)
return NULL;
safe_close(j->disk_fd);
- if (j->compressed == PULL_JOB_XZ)
- lzma_end(&j->xz);
- else if (j->compressed == PULL_JOB_GZIP)
- inflateEnd(&j->gzip);
- else if (j->compressed == PULL_JOB_BZIP2)
- BZ2_bzDecompressEnd(&j->bzip2);
+ import_compress_free(&j->compress);
if (j->checksum_context)
gcry_md_close(j->checksum_context);
* sparse and we just seeked for the last part */
if (ftruncate(j->disk_fd, j->written_uncompressed) < 0) {
- log_error_errno(errno, "Failed to truncate file: %m");
- r = -errno;
+ r = log_error_errno(errno, "Failed to truncate file: %m");
goto finish;
}
pull_job_finish(j, r);
}
-static int pull_job_write_uncompressed(PullJob *j, void *p, size_t sz) {
+static int pull_job_write_uncompressed(const void *p, size_t sz, void *userdata) {
+ PullJob *j = userdata;
ssize_t n;
assert(j);
if (j->disk_fd >= 0) {
- if (j->grow_machine_directory && j->written_since_last_grow >= PULL_GROW_INTERVAL_BYTES) {
+ if (j->grow_machine_directory && j->written_since_last_grow >= GROW_INTERVAL_BYTES) {
j->written_since_last_grow = 0;
grow_machine_directory();
}
n = sparse_write(j->disk_fd, p, sz, 64);
else
n = write(j->disk_fd, p, sz);
- if (n < 0) {
- log_error_errno(errno, "Failed to write file: %m");
- return -errno;
- }
+ if (n < 0)
+ return log_error_errno(errno, "Failed to write file: %m");
if ((size_t) n < sz) {
log_error("Short write");
return -EIO;
if (j->checksum_context)
gcry_md_write(j->checksum_context, p, sz);
- switch (j->compressed) {
-
- case PULL_JOB_UNCOMPRESSED:
- r = pull_job_write_uncompressed(j, p, sz);
- if (r < 0)
- return r;
-
- break;
-
- case PULL_JOB_XZ:
- j->xz.next_in = p;
- j->xz.avail_in = sz;
-
- while (j->xz.avail_in > 0) {
- uint8_t buffer[16 * 1024];
- lzma_ret lzr;
-
- j->xz.next_out = buffer;
- j->xz.avail_out = sizeof(buffer);
-
- lzr = lzma_code(&j->xz, LZMA_RUN);
- if (lzr != LZMA_OK && lzr != LZMA_STREAM_END) {
- log_error("Decompression error.");
- return -EIO;
- }
-
- r = pull_job_write_uncompressed(j, buffer, sizeof(buffer) - j->xz.avail_out);
- if (r < 0)
- return r;
- }
-
- break;
-
- case PULL_JOB_GZIP:
- j->gzip.next_in = p;
- j->gzip.avail_in = sz;
-
- while (j->gzip.avail_in > 0) {
- uint8_t buffer[16 * 1024];
-
- j->gzip.next_out = buffer;
- j->gzip.avail_out = sizeof(buffer);
-
- r = inflate(&j->gzip, Z_NO_FLUSH);
- if (r != Z_OK && r != Z_STREAM_END) {
- log_error("Decompression error.");
- return -EIO;
- }
-
- r = pull_job_write_uncompressed(j, buffer, sizeof(buffer) - j->gzip.avail_out);
- if (r < 0)
- return r;
- }
-
- break;
-
- case PULL_JOB_BZIP2:
- j->bzip2.next_in = p;
- j->bzip2.avail_in = sz;
-
- while (j->bzip2.avail_in > 0) {
- uint8_t buffer[16 * 1024];
-
- j->bzip2.next_out = (char*) buffer;
- j->bzip2.avail_out = sizeof(buffer);
-
- r = BZ2_bzDecompress(&j->bzip2);
- if (r != BZ_OK && r != BZ_STREAM_END) {
- log_error("Decompression error.");
- return -EIO;
- }
-
- r = pull_job_write_uncompressed(j, buffer, sizeof(buffer) - j->bzip2.avail_out);
- if (r < 0)
- return r;
- }
-
- break;
-
- default:
- assert_not_reached("Unknown compression");
- }
+ r = import_uncompress(&j->compress, p, sz, pull_job_write_uncompressed, j);
+ if (r < 0)
+ return r;
j->written_compressed += sz;
}
static int pull_job_detect_compression(PullJob *j) {
- static const uint8_t xz_signature[] = {
- 0xfd, '7', 'z', 'X', 'Z', 0x00
- };
- static const uint8_t gzip_signature[] = {
- 0x1f, 0x8b
- };
- static const uint8_t bzip2_signature[] = {
- 'B', 'Z', 'h'
- };
-
_cleanup_free_ uint8_t *stub = NULL;
size_t stub_size;
assert(j);
- if (j->payload_size < MAX3(sizeof(xz_signature),
- sizeof(gzip_signature),
- sizeof(bzip2_signature)))
+ r = import_uncompress_detect(&j->compress, j->payload, j->payload_size);
+ if (r < 0)
+ return log_error_errno(r, "Failed to initialize compressor: %m");
+ if (r == 0)
return 0;
- if (memcmp(j->payload, xz_signature, sizeof(xz_signature)) == 0)
- j->compressed = PULL_JOB_XZ;
- else if (memcmp(j->payload, gzip_signature, sizeof(gzip_signature)) == 0)
- j->compressed = PULL_JOB_GZIP;
- else if (memcmp(j->payload, bzip2_signature, sizeof(bzip2_signature)) == 0)
- j->compressed = PULL_JOB_BZIP2;
- else
- j->compressed = PULL_JOB_UNCOMPRESSED;
-
- log_debug("Stream is XZ compressed: %s", yes_no(j->compressed == PULL_JOB_XZ));
- log_debug("Stream is GZIP compressed: %s", yes_no(j->compressed == PULL_JOB_GZIP));
- log_debug("Stream is BZIP2 compressed: %s", yes_no(j->compressed == PULL_JOB_BZIP2));
-
- if (j->compressed == PULL_JOB_XZ) {
- lzma_ret xzr;
-
- xzr = lzma_stream_decoder(&j->xz, UINT64_MAX, LZMA_TELL_UNSUPPORTED_CHECK);
- if (xzr != LZMA_OK) {
- log_error("Failed to initialize XZ decoder.");
- return -EIO;
- }
- }
- if (j->compressed == PULL_JOB_GZIP) {
- r = inflateInit2(&j->gzip, 15+16);
- if (r != Z_OK) {
- log_error("Failed to initialize gzip decoder.");
- return -EIO;
- }
- }
- if (j->compressed == PULL_JOB_BZIP2) {
- r = BZ2_bzDecompressInit(&j->bzip2, 0, 0);
- if (r != BZ_OK) {
- log_error("Failed to initialize bzip2 decoder.");
- return -EIO;
- }
- }
+ log_debug("Stream is compressed: %s", import_compress_type_to_string(j->compress.type));
r = pull_job_open_disk(j);
if (r < 0)
~ianmdlvl / elogind.git / blobdiff