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lib/deltas: Support signed delta in dump

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This checks if the static delta file is signed or not to be able to
correctly get the superblock to dump.

Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>
This commit is contained in:
Frédéric Danis 2020-07-09 17:35:00 +02:00
parent 0c48423c26
commit bf0c09ffe1
1 changed files with 22 additions and 5 deletions
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27
src/libostree/ostree-repo-static-delta-core.c
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@ -819,6 +819,8 @@ _ostree_repo_static_delta_dump (OstreeRepo *self,
GError **error)
{
glnx_autofd int superblock_fd = -1;
g_autoptr(GVariant) delta = NULL;
g_autoptr(GVariant) delta_superblock = NULL;
if (strchr (delta_id, '/'))
{
@ -837,13 +839,28 @@ _ostree_repo_static_delta_dump (OstreeRepo *self,
return FALSE;
}
g_autoptr(GVariant) delta_superblock = NULL;
if (!ot_variant_read_fd (superblock_fd, 0,
(GVariantType*)OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT,
TRUE, &delta_superblock, error))
return FALSE;
gboolean is_signed = _ostree_repo_static_delta_is_signed(self, superblock_fd, NULL, NULL);
if (is_signed)
{
if (!ot_variant_read_fd (superblock_fd, 0, (GVariantType*)OSTREE_STATIC_DELTA_SIGNED_FORMAT,
TRUE, &delta, error))
return FALSE;
g_autoptr(GVariant) child = g_variant_get_child_value (delta, 1);
g_autoptr(GBytes) bytes = g_variant_get_data_as_bytes(child);
delta_superblock = g_variant_new_from_bytes ((GVariantType*)OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT,
bytes, FALSE);
}
else
{
if (!ot_variant_read_fd (superblock_fd, 0,
(GVariantType*)OSTREE_STATIC_DELTA_SUPERBLOCK_FORMAT,
TRUE, &delta_superblock, error))
return FALSE;
}
g_print ("Delta: %s\n", delta_id);
g_print ("Signed: %s\n", is_signed ? "yes" : "no");
g_autoptr(GVariant) from_commit_v = NULL;
g_variant_get_child (delta_superblock, 2, "@ay", &from_commit_v);
g_autofree char *from_commit = NULL;