Commit graph

123 commits

Author SHA1 Message Date
Jouni Malinen
22f90b32f1 DPP2: Configuration Result message generation and processing
Use this new message from Enrollee to Configurator to indicate result of
the config object provisioning if both devices support protocol version
2 or newer.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-15 00:31:09 +02:00
Jouni Malinen
0b4a906de1 DPP2: Protocol version indication
Send out the new Protocol Version attribute in Authentication
Request/Response messages and determine the peer version based on this
attribute.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-03-13 13:22:37 +02:00
Jouni Malinen
5bcddb9302 DPP: Fix build with LibreSSL 2.8.3
Looks like LibreSSL 2.8 pulled in the OpenSSL API change to mark the
first argument to X509_ALGOR_get0() const.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-12-21 12:21:03 +02:00
Jouni Malinen
4a450ba201 DPP: Do not reply to PKEX request with identifier if no local identifier
The reverse case (local identifier configured but no identifier
received) was already covered, but PKEX is not going to complete
successfully if there is any difference in identifier configuration, so
ignore this other case as well. This avoids unnecessary responses to
PKEX requests with identifier from a device that is ready for PKEX in
general, but not for that particular request.

Signed-off-by: Jouni Malinen <j@w1.fi>
2018-12-02 12:30:11 +02:00
Jouni Malinen
810bedf23f DPP: Check own_bi/peer_bi pointers more consistently
This gets rid of smatch warnings about a dereference before check.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-11-30 21:28:19 +02:00
Jouni Malinen
89b6d8a2f0 DPP: Fix no-Status protocol testing in Auth Resp error case
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-11-27 17:20:41 +02:00
Jouni Malinen
06e62e11c7 DPP: Fix a debug print to use quotation marks consistently
The "DPP: Unexpected JWK kty" debug print missed one of the quotation
marks.

Signed-off-by: Jouni Malinen <j@w1.fi>
2018-11-25 17:31:49 +02:00
Ankita Bajaj
820ea0ba93 DPP: Fix a memory leak on Configurator keygen error path
The allocated configuration structure needs to be freed if the specified
curve is not supported.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-09-21 21:22:42 +03:00
Ankita Bajaj
5a052f92eb DPP: Fix a memory leak in L derivation
The temporary EC_POINT 'sum' needs to be freed at the end of the
function with the other OpenSSL allocations.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-09-21 21:21:14 +03:00
Ankita Bajaj
bae282e3e8 DPP: Fix an error path memory leak in URI public key parsing
The allocated buffer from base64_decode() needs to be freed on the
sha256_vector() error path.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-09-21 21:20:06 +03:00
Jouni Malinen
2b92c4f3c0 DPP: Fix test functionality for invalid keys with OpenSSL 1.1.0
It looks like at least OpenSSL 1.1.0i includes the extra checks in
EC_POINT_set_affine_coordinates_GFp() that break the previously used
mechanism for generating invalid keys. Fix this by using the alternative
design that was used with OpenSSL 1.1.1 and BoringSSL.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-09-17 17:23:10 +03:00
Purushottam Kushwaha
20f612d998 DPP: Set group id through DPP_AUTH_INIT or dpp_configurator_params
This enhances DPP_AUTH_INIT, DPP_CONFIGURATOR_SIGN, and SET
dpp_configurator_params to allow optional setting of the DPP groupId
string for a Connector. If the value is not set, the previously wildcard
value ("*") is used by default.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-08-30 23:34:00 +03:00
Jouni Malinen
2439714f90 DPP: Fix testing code for invalid keys with OpenSSL 1.1.1
OpenSSL started reporting failures from
EC_POINT_set_affine_coordinates_GFp() similarly to BoringSSL, so use the
same workaround to enable this protocol testing case.

Signed-off-by: Jouni Malinen <j@w1.fi>
2018-05-01 12:02:57 +03:00
Jouni Malinen
5ecdf06c8c DPP: Fix build with LibreSSL v2.5
The ECDSA_SIG_{set,get}0() wrappers are needed with LibreSSL v2.5 (but
not v2.7.2).

Signed-off-by: Jouni Malinen <j@w1.fi>
2018-04-15 00:01:35 +03:00
Jouni Malinen
4b603f01de DPP: Fix X509_ALGOR_get0() use with LibreSSL
At least LibreSSL v2.7.2 indicates support for OpenSSL API 1.1.0, but it
does not apparently use const ASN1_OBJECT * with X509_ALGOR_get0(). Use
the older non-const version here with LibreSSL to fix compilation.

Signed-off-by: Jouni Malinen <j@w1.fi>
2018-04-15 00:01:35 +03:00
Purushottam Kushwaha
8179ae3a2a DPP: Support retrieving of configurator's private key
To retain configurator information across hostapd/wpa_supplicant
restart, private key need to be maintained to generate a valid pair of
authentication keys (connector, netaccess_key, csign) for new enrollees
in the network.

Add a DPP_CONFIGURATOR_GET_KEY control interface API through which the
private key of an existing configurator can be fetched.

Command format:
DPP_CONFIGURATOR_GET_KEY <configurator_id>

The output from this command can then be used with
"DPP_CONFIGURATOR_ADD key=<hexdump>" to create the same key again.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-03-16 20:55:32 +02:00
Jouni Malinen
fe3f81e6a8 DPP: Update PKEX role-specific points
The y coordinates for some of these PKEX role-specific points were
changed in the PKEX specification, so update the implementation to
match.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-01-26 18:06:49 +02:00
Jouni Malinen
630ea13346 DPP: Track M.x/N.x/L.x availability for ke derivation
This prevents an issue where duplicated Authentication Response frame
could have resulted in deriving a new ke value after M.x had already
been cleared. This would result in the following configuration exchange
failing. This could happen since many driver do not filter out
retransmitted Public Action frames and link layer. Furthermore, this
could have been used as a denial-of-service attack agains the DPP
exchange.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2018-01-21 11:13:01 +02:00
Jouni Malinen
c23e87d0d1 OpenSSL: Replace EVP_PKEY_paramgen() with EC_KEY_new_by_curve_name()
The BoringSSL version of crypto_ecdh_init() and dpp_gen_keypair() works
fine with OpenSSL as well, so use that same implementation for both to
avoid unnecessary maintanence of multiple versions.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-12-10 23:49:39 +02:00
Jouni Malinen
7641d485db BoringSSL: Use EC_KEY_new_by_curve_name() to simplify implementation
There is no need to go through EC_GROUP_new_by_curve_name(),
EC_KEY_new(), and EC_KEY_set_group() when a single call to
EC_KEY_new_by_curve_name() takes care of all that.

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-12-10 23:41:29 +02:00
Jouni Malinen
a5da39607d Revert "BoringSSL: Add DPP special cases regardless of claimed version number"
This reverts commit 5548453a2d since
BoringSSL added ECDSA_SIG_set0() and ECDSA_SIG_get0() in commit
8dc226ca8f1ef60737e1c1bf8cfcabf51d4068c7 ('Add some missing OpenSSL
1.1.0 accessors.') and updated X509_ALGOR_get0() prototype to match
OpenSSL 1.1.0 changes in commit e3b2a5d30d309091cab3e6a19dee7323c40d968d
('Const-correct X509_ALGOR_get0.').

Signed-off-by: Jouni Malinen <j@w1.fi>
2017-12-10 23:27:04 +02:00
Jouni Malinen
055cd39788 tests: DPP P-256 test vectors
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-12-07 13:35:19 +02:00
Jouni Malinen
f55269753c DPP: Allow protocol key to be overridden for testing purposes
This can be used for various testing needs.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-12-05 23:53:08 +02:00
Jouni Malinen
163fc3d562 DPP: Indicate to upper layers whether mutual authentication was used
DPP Responder selects whether mutual authentication is used. This commit
adds information about that selection to upper layers (ctrl_iface event
DPP-AUTH-DIRECTION mutual=<0/1>) on the Initiator side.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-12-02 12:00:44 +02:00
Jouni Malinen
34603767b8 DPP: Extend protocol testing to allow exchange termination
This extends dpp_test functionality to allow DPP exchanges to be stopped
when receiving a specified message.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-12-02 12:00:44 +02:00
Jouni Malinen
f0a383a981 DPP: Extend dpp_test with invalid E-Nonce in Config Req
Allow an E-Nonce attribute with invalid length to be sent for protocol
testing purposes.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-30 22:01:10 +02:00
Jouni Malinen
f981ce7298 DPP: Do not continue if public key hash derivation fails
sha256_vector() result was ignored apart from printing out the failure
in the debug log. This is not really a normal case and it is better to
reject the full operation rather than try to continue with an incorrect
public key hash value.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-30 00:08:38 +02:00
Jouni Malinen
8a37d54ea7 DPP: Fix memory leak on dpp_auth_build_conf() error paths
The wpabuf for the message needs to be freed on the error paths.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-29 21:21:34 +02:00
Jouni Malinen
622934128b DPP: Fix a memory leak on an error path
Need to free temporary allocations if dpp_build_conf_start() fails to
allocate memory.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-29 13:03:48 +02:00
Jouni Malinen
a2588be82c DPP: Add DPP_CONFIGURATOR_SIGN support to hostapd
Configurator signing its own Connector was previously supported only in
wpa_supplicant. This commit extends that to hostapd to allow an AP
acting as a Configurator to self-configure itself.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-27 13:24:20 +02:00
Jouni Malinen
73f21929a7 DPP: Auto-generate Initiator bootstrapping info if needed
Instead of using the all-zeros Initiator Bootstrapping Key Hash when no
local bootstrapping key is configuref for the Initiator, automatically
generate a temporary bootstrapping key for the same curve that the
Responder uses. If the Responder indicates that it wants to do mutual
authentication, provide the URI for the auto-generated bootstrapping key
in the DPP-RESPONSE-PENDING event for upper layers to display the QR
Code.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-26 17:41:22 +02:00
Jouni Malinen
acc555f9e6 DPP: Allow PKEX x/X and y/Y keypairs to be overridden
This is for testing purposes to allow a test vector with specific values
to be generated.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-24 01:41:50 +02:00
Jouni Malinen
d722c50d0a DPP: Print more interim EC_POINT results into debug log
This makes it easier to debug issues related to DPP/PKEX EC operations.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-24 01:02:59 +02:00
Jouni Malinen
2bdc47a945 DPP: Allow PKEX own/peer MAC addresses to be overridden
This is for testing purposes to allow a test vector with specific values
to be generated.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-23 23:47:52 +02:00
Jouni Malinen
af4103e5e9 DPP: Provide peer_mac to PKEX Initiator through function argument
Avoid unnecessary direct write to a struct dpp_pkex member from outside
dpp.c.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-23 23:32:33 +02:00
Jouni Malinen
918a2ac40f DPP: Work around missing EVP_PKEY_CTX_set_ec_param_enc()
This allows compilation with older OpenSSL 1.0.1.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-23 20:31:12 +02:00
Jouni Malinen
116454f460 DPP: Fix error return value in dpp_auth_conf_rx()
Commit 03abb6b541 ('DPP: Reject unexpected
Req/Resp message based on Auth/PKEX role') used incorrect type of error
value (NULL vs. -1). Fix that.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-23 20:20:39 +02:00
Jouni Malinen
e3a5882b3e DPP: Add SAE credential support to Configurator
The new conf={sta,ap}-{sae,psk-sae} parameter values can now be used to
specify that the legacy configuration object is for SAE.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-22 21:24:08 +02:00
Jouni Malinen
5dd745b738 DPP: Add akm=sae and akm=psk+sae support in Enrollee role
This allows DPP to be used for enrolling credentials for SAE networks in
addition to the legacy PSK (WPA-PSK) case. In addition, enable FT-PSK
and FT-SAE cases automatically.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-22 21:23:51 +02:00
Jouni Malinen
a444673957 DPP: Protocol testing capability to send invalid I-Nonce in Auth Req
Extend dpp_test to cover one more invalid behavior.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-22 16:23:42 +02:00
Jouni Malinen
4b8de0c929 DPP: Protocol testing for invalid Peer Discovery Req/Resp values
Extend dpp_test to allow more invalid attribute values to be written
into Peer Discovery Request/Response frames.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-19 17:15:02 +02:00
Jouni Malinen
3f35ec2dc3 DPP: Protocol testing for invalid DPP Status value
Extend dpp_test to cover cases where DPP Status value is invalid in
Authentication Response/Confirm frames.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-19 14:13:16 +02:00
Jouni Malinen
9efa531499 DPP: Use helper functions to build Bootstrap Key Hash attributes
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-19 12:41:57 +02:00
Jouni Malinen
acdf703d50 DPP: Replace custom undefined attr with DPP Status in after-wrapped data
This has the same impact and is needed for some testing needs.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-19 12:32:00 +02:00
Jouni Malinen
56f24d1da0 DPP: Use a helper function to build DPP Status attribute
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-19 12:27:14 +02:00
Jouni Malinen
65ecce87fd DPP: Protocol testing for writing invalid I/R Bootstrap Key Hash
Extend dpp_test to cover cases where Initiator/Responder Bootstrap Key
Hash value in DPP Authentication frames is invalid (flip one bit).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-19 11:32:02 +02:00
Jouni Malinen
b6b4226bdd DPP: Protocol testing capability to generate invalid Protocol Key
This extends dpp_test to allow invalid Initiator/Responder Protocol Key
to be written into the Authentication Request/Response frame.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-19 00:11:44 +02:00
Jouni Malinen
94619905c8 DPP: Fix dpp_test_gen_invalid_key() with BoringSSL
Unlike OpenSSL, BoringSSL returns an error from
EC_POINT_set_affine_coordinates_GFp() is not on the curve. As such, need
to behave differently here depending on which library is used.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-18 17:50:08 +02:00
Jouni Malinen
746c1792ac DPP: Build bootstrapping key DER encoding using custom routine
While the OpenSSL version of i2d_EC_PUBKEY() seemed to be able to use
the POINT_CONVERSION_COMPRESSED setting on the EC key, that did not seem
to work with BoringSSL. Since this is not exactly robust design, replace
use of i2d_EC_PUBKEY() with a custom routine that enforces the DPP rules
on SubjectPublicKeyInfo (compressed format of the public key,
ecPublicKey OID, parameters present and indicating the curve by OID).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-18 17:50:02 +02:00
Jouni Malinen
f2d27ef94c DPP: Use a helper function to DER encode bootstrapping key
This routine was previously implemented twice using i2d_EC_PUBKEY().
There is no need to duplicate that implementation and especially since
it looks like this implementation needs to be replaced for BoringSSL,
start by using a shared helper function for both locations so that there
is only a single place that uses i2d_EC_PUBKEY() to build the special
DPP bootstrapping key DER encoding.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2017-11-18 12:14:21 +02:00