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Add segment create helpers.

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This commit is contained in:
Ondrej Kozina
2019-02-26 16:09:10 +01:00
committed by Milan Broz
parent 361fb22954
commit 46bf3c9e9c
3 changed files with 46 additions and 17 deletions
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33
lib/luks2/luks2_segment.c
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@@ -204,3 +204,36 @@ void json_segment_remove_flag(json_object *jobj_segment, const char *flag)
} else
json_object_object_add(jobj_segment, "flags", jobj_flags_new);
}
static json_object *_segment_create_generic(const char *type, uint64_t offset, const uint64_t *length)
{
json_object *jobj = json_object_new_object();
if (!jobj)
return NULL;
json_object_object_add(jobj, "type", json_object_new_string(type));
json_object_object_add(jobj, "offset", json_object_new_uint64(offset));
json_object_object_add(jobj, "size", length ? json_object_new_uint64(*length) : json_object_new_string("dynamic"));
return jobj;
}
json_object *json_segment_create_linear(uint64_t offset, const uint64_t *length)
{
return _segment_create_generic("linear", offset, length);
}
json_object *json_segment_create_crypt(uint64_t offset,
uint64_t iv_offset, const uint64_t *length,
const char *cipher, uint32_t sector_size)
{
json_object *jobj = _segment_create_generic("crypt", offset, length);
if (!jobj)
return NULL;
json_object_object_add(jobj, "iv_tweak", json_object_new_uint64(iv_offset));
json_object_object_add(jobj, "encryption", json_object_new_string(cipher));
json_object_object_add(jobj, "sector_size", json_object_new_int(sector_size));
return jobj;
}