Commit graph

351 commits

Author SHA1 Message Date
Jouni Malinen
b3b8085ae8 TLS: Add functions for managing cached session state
The new tls_connection_set_success_data(),
tls_connection_set_success_data_resumed(),
tls_connection_get_success_data(), and tls_connection_remove_session()
functions can be used to mark cached sessions valid and to remove
invalid cached sessions. This commit is only adding empty functions. The
actual functionality will be implemented in followup commits.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-24 02:29:30 +03:00
Jouni Malinen
681e199dfb EAP server: Add tls_session_lifetime configuration
This new hostapd configuration parameter can be used to enable TLS
session resumption. This commit adds the configuration parameter through
the configuration system and RADIUS/EAPOL/EAP server components. The
actual changes to enable session caching will be addressed in followup
commits.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-24 02:29:30 +03:00
Jouni Malinen
93bc654996 OpenSSL: Allow server connection parameters to be configured
This extends OpenSSL version of tls_connection_set_verify() to support
the new flags argument.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-24 02:29:29 +03:00
Jouni Malinen
bfbebd2665 TLS: Add new arguments to tls_connection_set_verify()
The new flags and session_ctx arguments will be used in followup
commits.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-24 02:29:29 +03:00
Jouni Malinen
bd9b8b2b68 OpenSSL: Add wrapper struct for tls_init() result
This new struct tls_data is needed to store per-tls_init() information
in the followup commits.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-24 02:29:25 +03:00
Jouni Malinen
87c59a1e5a tests: Allow AES-WRAP-192 test cases to be commented out with BoringSSL
BoringSSL does not support 192-bit AES, so these parts of the
wpa_supplicant module tests would fail.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-08-18 20:21:44 +03:00
Jouni Malinen
355a5c8ec5 OpenSSL: Reject OCSP-required configuration if no OCSP support
This is needed at least with BoringSSL to avoid accepting OCSP-required
configuration with a TLS library that does not support OCSP stapling.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-08-18 02:24:06 +03:00
Jouni Malinen
c07e7b43e9 BoringSSL: Fix PKCS12_parse() segfault when used without password
Unlike OpenSSL PKCS12_parse(), the BoringSSL version seems to require
the password pointer to be non-NULL even if no password is present. Map
passwrd == NULL to passwd = "" to avoid a NULL pointer dereference
within BoringSSL.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-08-18 02:06:02 +03:00
Jouni Malinen
a89beee589 OpenSSL: Handshake completion and resumption state into debug log
This new debug log entry makes it more convenient to check how TLS
handshake was completed.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-08-18 01:56:05 +03:00
Jouni Malinen
a7803b0caf BoringSSL: Fix session resumption
BoringSSL commit 533ef7304d9b48aad38805f1997031a0a034d7fe ('Remove
SSL_clear calls in handshake functions.') triggered a regression for
EAP-TLS/TTLS/PEAP session resumption in wpa_supplicant due to the
removed SSL_clear() call in ssl3_connect() going away and wpa_supplicant
not calling SSL_clear() after SSL_shutdown(). Fix this by adding the
SSL_clear() call into wpa_supplicant after SSL_shutdown() when preparing
the ssl instance for another connection.

While OpenSSL is still call SSL_clear() in ssl3_connect(), it looks to
be safe to add this call to wpa_supplicant unconditionally.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-08-18 01:56:05 +03:00
Jouni Malinen
0f56057c64 BoringSSL: Make SSL_set_ssl_method() conditional on EAP-FAST
This function does not seem to be available in BoringSSL. Since it is
needed for EAP-FAST (which is not currently working with BoringSSL),
address this by commenting out the EAP-FAST specific step from builds
that do not include EAP-FAST support.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-08-18 01:56:05 +03:00
Jouni Malinen
226cdea6ca BoringSSL: Comment out SSL_build_cert_chain() call
It looks like BoringSSL does include that function even though it claims
support for OPENSSL_VERSION_NUMBER where this is available (1.0.2). For
now, comment out that call to fix build.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-08-18 01:56:04 +03:00
Jouni Malinen
812f28b79c BoringSSL: Allow internal AES key wrap to be used with "OpenSSL" build
It looks like BoringSSL has removed the AES_wrap_key(), AES_unwrap_key()
API. This broke wpa_supplicant/hostapd build since those functions from
OpenSSL were used to replace the internal AES key wrap implementation.
Add a new build configuration option
(CONFIG_OPENSSL_INTERNAL_AES_WRAP=y) to allow the internal
implementation to be used with CONFIG_OPENSSL=y build to allow build
against the latest BoringSSL version.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-08-18 01:56:02 +03:00
Jouni Malinen
de2a7b796d OpenSSL: Use connection certificate chain with PKCS#12 extra certs
When using OpenSSL 1.0.2 or newer, this replaces the older
SSL_CTX_add_extra_chain_cert() design with SSL_add1_chain_cert() to keep
the extra chain certificates out from SSL_CTX and specific to each
connection. In addition, build and rearrange extra certificates with
SSL_build_cert_chain() to avoid incorrect certificates and incorrect
order of certificates in the TLS handshake.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-11 01:27:03 +03:00
Jouni Malinen
0d2c0e6776 OpenSSL: Fix PKCS#12 extra certificate handling
Previously, the possible extra certificate(s) from a PKCS#12 file was
added once for each authentication attempt. This resulted in OpenSSL
concatenating the certificates multiple time (add one copy for each try
during the wpa_supplicant process lifetime). Fix this by clearing the
extra chain certificates before adding new ones when using OpenSSL 1.0.1
or newer that include the needed function.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-11 01:27:00 +03:00
Jouni Malinen
7cb53ded11 Add build option to remove all internal RC4 uses
The new CONFIG_NO_RC4=y build option can be used to remove all internal
hostapd and wpa_supplicant uses of RC4. It should be noted that external
uses (e.g., within a TLS library) do not get disabled when doing this.

This removes capability of supporting WPA/TKIP, dynamic WEP keys with
IEEE 802.1X, WEP shared key authentication, and MSCHAPv2 password
changes.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-02 16:52:56 +03:00
Jouni Malinen
4fc53159b9 OpenSSL: Fix FIPS mode enabling in dynamic interface case
FIPS_mode_set(1) cannot be called multiple times which could happen in
some dynamic interface cases. Avoid this by enabling FIPS mode only
once. There is no code in wpa_supplicant to disable FIPS mode, so once
it is enabled, it will remain enabled.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-02 16:52:56 +03:00
Jouni Malinen
e234c7c010 OpenSSL: Remove md4_vector() from CONFIG_FIPS=y builds
MD4 is not allowed in such builds, so comment out md4_vector() from the
build to force compile time failures for cases that cannot be supported
instead of failing the MD¤ operations at runtime. This makes it easier
to detect and fix accidental cases where MD4 could still be used in some
older protocols.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-02 16:52:56 +03:00
Jouni Malinen
cd94f0d159 tests: Skip ms_funcs module tests in CONFIG_FIPS=y builds
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-02 16:52:56 +03:00
Jouni Malinen
1046db8b53 Rename tls_connection_get_keys() to tls_connection_get_random()
Commit 94f1fe6f63 ('Remove master key
extraction from tls_connection_get_keys()') left only fetching of
server/client random, but did not rename the function and structure to
minimize code changes. The only name is quite confusing, so rename this
through the repository to match the new purpose.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-02 16:52:56 +03:00
Jouni Malinen
d0eb8a0b4e OpenSSL: Allow server/client random to be fetched in FIPS mode
tls_connection_get_keys() used to return TLS master secret, but that
part was removed in commit 94f1fe6f63
('Remove master key extraction from tls_connection_get_keys()'). Since
then, there is no real need for preventing this function from being used
in FIPS mode.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-02 16:52:56 +03:00
Jouni Malinen
f413eb03d9 random: Fix random_get_bytes() with CONFIG_FIPS=y
The bytes pointer was not reset back to the beginning of the buffer when
mixing in additional entropy from the crypto module. This resulted in
writing beyond the return buffer and not getting the required mixing of
the extra entropy for the actual return buffer.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-01 21:08:11 +03:00
Jouni Malinen
4a26972dfc OpenSSL: Remove md5_vector() from CONFIG_FIPS=y builds
MD5 is not allowed in such builds, so comment out md5_vector() from the
build to force compile time failures for cases that cannot be supported
instead of failing the MD5 operations at runtime. This makes it easier
to detect and fix accidental cases where MD5 could still be used in some
older protocols.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-01 21:08:06 +03:00
Jouni Malinen
97e986cd74 tests: Skip MD5 module tests in CONFIG_FIPS=y builds
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-01 16:57:04 +03:00
Jouni Malinen
276a3c44dd OpenSSL: Implement aes_wrap/aes_unwrap through EVP for CONFIG_FIPS=y
The OpenSSL internal AES_wrap_key() and AES_unwrap_key() functions are
unfortunately not available in FIPS mode. Trying to use them results in
"aes_misc.c(83): OpenSSL internal error, assertion failed: Low level API
call to cipher AES forbidden in FIPS mode!" and process termination.
Work around this by reverting commit
f19c907822 ('OpenSSL: Implement aes_wrap()
and aes_unwrap()') changes for CONFIG_FIPS=y case. In practice, this
ends up using the internal AES key wrap/unwrap implementation through
the OpenSSL EVP API which is available in FIPS mode. When CONFIG_FIPS=y
is not used, the OpenSSL AES_wrap_key()/AES_unwrap_key() API continues
to be used to minimize code size.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-01 16:56:59 +03:00
Jouni Malinen
266cf4a0bc OpenSSL: Comment out openssl_get_keyblock_size() if CONFIG_FIPS=y
This function is not used in CONFIG_FIPS=y builds.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-01 15:52:35 +03:00
Jouni Malinen
5bbc1c2581 tests: Comment out TLS PRF test from CONFIG_FIPS=y build
This fixes CONFIG_FIPS=y build that may not include tls_prf_sha1_md5().

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-08-01 15:51:44 +03:00
Jouni Malinen
06836013d3 OpenSSL: Remove EAP-FAST TLSv1.0 only workaround for OpenSSL 1.1.0
The issue with the special form of TLS session tickets has been fixed in
the OpenSSL 1.1.0 branch, so disable workaround for it. OpenSSL 1.0.1
and 1.0.2 workaround is still in place until a release with the fix has
been made.

This allows TLSv1.1 and TLSv1.2 to be negotiated for EAP-FAST with the
OpenSSL versions that support this.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-28 21:00:18 +03:00
Jouni Malinen
c34cd66866 OpenSSL: Drop security level to 0 if needed for EAP-FAST
OpenSSL 1.1.0 disables the anonymous ciphers by default, so need to
enable these for the special case of anonymous EAP-FAST provisioning.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-28 21:00:17 +03:00
Jouni Malinen
16bc3b8935 OpenSSL: Add SHA256 support in openssl_tls_prf() for TLSv1.2
This is needed when enabling TLSv1.2 support for EAP-FAST since the
SSL_export_keying_material() call does not support the needed parameters
for TLS PRF and the external-to-OpenSSL PRF needs to be used instead.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-28 21:00:17 +03:00
Jouni Malinen
3de28506d2 OpenSSL: Implement openssl_tls_prf() for OpenSSL 1.1.0
This needs to use the new accessor functions since the SSL session
details are not directly accessible anymore and there is now sufficient
helper functions to get to the needed information.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-28 18:56:45 +03:00
Jouni Malinen
4d2a1b4f8f OpenSSL: Implement SSL_set_session_secret_cb() callback for OpenSSL 1.1.0
This needs to use the new accessor functions for client/server random
since the previously used direct access won't be available anymore.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-28 18:56:45 +03:00
Jouni Malinen
005c5dcf43 OpenSSL: Implement tls_connection_get_keys() for OpenSSL 1.1.0
This needs to use the new accessor functions since the SSL session
details are not directly accessible anymore.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-28 18:56:45 +03:00
Jouni Malinen
690e543e8a OpenSSL: Include openssl/engine.h and openssl/dsa.h explicitly
This seems to be needed for OpenSSL 1.1.0.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-28 18:56:45 +03:00
Jouni Malinen
e9690eb74e OpenSSL: Remove extra BIO_write() call on TLS client
openssl_handshake() was checking only that in_data is not NULL and not
its length when determining whether to call BIO_write(). Extend that to
check the buffer length as well. In practice, this removes an
unnecessary BIO_write() call at the beginning of a TLS handshake on the
client side. This did not cause issues with OpenSSL versions up to
1.0.2, but that call seems to fail with the current OpenSSL 1.1.0
degvelopment snapshot. There is no need for that zero-length BIO_write()
call, so remove it.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-28 18:56:45 +03:00
Jouni Malinen
fe1bf32974 Make TLS version number available in STATUS command
This adds a new STATUS command field "eap_tls_version" that shows the
TLS version number that was used during EAP-TLS/TTLS/PEAP/FAST exchange.
For now, this is only supported with OpenSSL.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-08 19:51:03 +03:00
Jouni Malinen
5650d379a3 OpenSSL: Add option to disable use of TLSv1.0
The new phase1 config parameter value tls_disable_tlsv1_0=1 can now be
used to disable use of TLSv1.0 for a network configuration. This can be
used to force a newer TLS version to be used. For example,
phase1="tls_disable_tlsv1_0=1 tls_disable_tlsv1_1=1" would indicate that
only TLS v1.2 is accepted.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-08 19:27:57 +03:00
Jouni Malinen
f24b97972b OpenSSL: Merge error returns
These similar error cases can use a single return statement.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-06-30 21:48:22 +03:00
Jouni Malinen
84d6a17a27 TLS: Remove unused tls_capabilities()
This mechanism to figure out TLS library capabilities has not been used
since commit fd2f2d0489 ('Remove
EAP-TTLSv1 and TLS/IA') (Sep 2011).

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-06-30 21:40:48 +03:00
Jouni Malinen
786722763d ms_funcs: Merge similar return cases
There is no need to have separate return statements for these corner
cases that are unlikely to be hit in practice.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-06-29 23:23:56 +03:00
Jouni Malinen
f826fb1de1 OpenSSL: Handle EC_POINT_is_on_curve() error case
Even though this OpenSSL function is documented as returning "1 if point
if on the curve and 0 otherwise", it can apparently return -1 on some
error cases. Be prepared for that and check explicitly against 1 instead
of non-zero.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-06-26 22:41:51 +03:00
Jouni Malinen
16841ab246 crypto: Add functions for computing the Legendre symbol and EC y^2
These are needed to implement side-channel protection for SAE PWE
derivation for ECC.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-06-26 22:41:51 +03:00
Jouni Malinen
c4a13b424b OpenSSL: Add support for Brainpool Elliptic Curves
This allows the IKE groups 27-30 (RFC 6932) to be used with OpenSSL
1.0.2 and newer. For now, these get enabled for SAE as configurable
groups (sae_groups parameter), but the new groups are not enabled by
default.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-06-26 22:41:51 +03:00
Jouni Malinen
4e7e68890a Add crypto_ec_point_cmp()
This is needed to allow SAE to check whether ECC elements are identical.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-06-23 22:29:23 +03:00
Jouni Malinen
fdc5608c12 OpenSSL: Remove SSL_CTX_{get,set}_app_data() compatibility wrapper
OpenSSL 0.9.8 (and newer) includes SSL_CTX_get_app_data() and
SSL_CTX_set_app_data(), so there is no need to maintain this old
OPENSSL_SUPPORTS_CTX_APP_DATA backwards compatibility design.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-06-23 21:05:02 +03:00
Ben Rosenfeld
144b6a0650 OpenSSL: Fix memory leak on an openssl_tls_prf() error path
Free tmp_out before returning to prevent memory leak in case the second
memory allocation in openssl_tls_prf() fails. This is quite unlikely,
but at least theoretically possible memory leak with EAP-FAST.

Signed-off-by: Ben Rosenfeld <ben.rosenfeld@intel.com>
2015-06-19 01:23:24 +03:00
MAYANK HAARIT
92f190a0ac OpenSSL: Fix build iwth OpenSSL 0.9.8
The OPENSSL_VERSION_NUMBER < 0x00909000L case of
openssl_get_keyblock_size() had not been kept in sync with the cleanup
changes.

Signed-off-by: Mayank Haarit <mayank.h@samsung.com>
2015-06-06 17:15:47 +03:00
Mikael Kanstrup
8b423edbd3 Declare all read only data structures as const
By analysing objdump output some read only structures were found in
.data section. To help compiler further optimize code declare these
as const.

Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>
2015-04-25 17:33:06 +03:00
Mike Gerow
fd4fb28179 OpenSSL: Try to ensure we don't throw away the PIN unnecessarily
Now on an engine error we decode the error value and determine if the
issue is due to a true PIN error or not. If it is due to incorrrect PIN,
delete the PIN as usual, but if it isn't let the PIN be.

Signed-off-by: Mike Gerow <gerow@google.com>
2015-04-25 16:05:50 +03:00
Jouni Malinen
cb71a8342d OpenSSL: Clean up TLS PRF implementation
Commit fa0e715100 ('Use
tls_connection_prf() for all EAP TLS-based key derivation') copied some
pointer checks from the generic implementation to tls_openssl.c.
However, these are arrays and cannot be NULL in OpenSSL data. Remove the
unnecessary checks and add master_key_length check for completeness.
(CID 109619).

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-04-22 11:17:26 +03:00