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wscutil: Add M3 builder

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This commit is contained in:
Denis Kenzior 2016-08-18 17:58:34 -05:00
parent 951eb26ec0
commit 6f0b31b3a4
2 changed files with 43 additions and 0 deletions
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42
src/wscutil.c
View File

@ -1319,6 +1319,20 @@ static void build_encryption_type_flags(struct wsc_attr_builder *builder,
wsc_attr_builder_put_u16(builder, encryption_type_flags);
}
static void build_e_hash1(struct wsc_attr_builder *builder,
const uint8_t *e_hash1)
{
wsc_attr_builder_start_attr(builder, WSC_ATTR_E_HASH1);
wsc_attr_builder_put_bytes(builder, e_hash1, 32);
}
static void build_e_hash2(struct wsc_attr_builder *builder,
const uint8_t *e_hash2)
{
wsc_attr_builder_start_attr(builder, WSC_ATTR_E_HASH2);
wsc_attr_builder_put_bytes(builder, e_hash2, 32);
}
static void build_enrollee_nonce(struct wsc_attr_builder *builder,
const uint8_t *nonce)
{
@ -1577,6 +1591,34 @@ done:
return ret;
}
uint8_t *wsc_build_m3(const struct wsc_m3 *m3, size_t *out_len)
{
struct wsc_attr_builder *builder;
uint8_t *ret;
builder = wsc_attr_builder_new(256);
build_version(builder, 0x10);
build_message_type(builder, WSC_MESSAGE_TYPE_M3);
build_registrar_nonce(builder, m3->registrar_nonce);
build_e_hash1(builder, m3->e_hash1);
build_e_hash2(builder, m3->e_hash2);
if (!m3->version2)
goto done;
/* Put in the WFA Vendor Extension */
wsc_attr_builder_start_attr(builder, WSC_ATTR_VENDOR_EXTENSION);
wsc_attr_builder_put_oui(builder, wfa_ext);
wsc_attr_builder_put_u8(builder, WSC_WFA_EXTENSION_VERSION2);
wsc_attr_builder_put_u8(builder, 1);
wsc_attr_builder_put_u8(builder, 0x20);
done:
build_authenticator(builder, m3->authenticator);
ret = wsc_attr_builder_free(builder, false, out_len);
return ret;
}
bool wsc_uuid_from_addr(const uint8_t addr[], uint8_t *out_uuid)
{

1
src/wscutil.h
View File

@ -452,5 +452,6 @@ uint8_t *wsc_build_probe_request(const struct wsc_probe_request *probe_request,
size_t *out_len);
uint8_t *wsc_build_m1(const struct wsc_m1 *m1, size_t *out_len);
uint8_t *wsc_build_m2(const struct wsc_m2 *m2, size_t *out_len);
uint8_t *wsc_build_m3(const struct wsc_m3 *m3, size_t *out_len);
bool wsc_uuid_from_addr(const uint8_t addr[], uint8_t *out_uuid);