Commit Graph

341 Commits

Author SHA1 Message Date
Davide De Rosa 49c805af52 Fix a few isHandled
Skip to exclude from strippedLines.
2019-04-03 13:19:47 +02:00
Davide De Rosa 9876c81de5 Parse PUSH_REPLY options in OptionsBundle
- auth-token
- peer-id
- Routing

Reorganize options by semantic.

Reuse OptionsBundle in PushReply.
2019-04-03 13:19:21 +02:00
Davide De Rosa b9b9c4db60 Parse basic options in OptionsBundle
- Handle isEncrypted inside CryptoContainer
- Rename ParsingError to OptionsError

Reuse OptionsBundle in ConfigurationParser.
2019-04-03 13:19:16 +02:00
Davide De Rosa e7dadefabb Generalize cipher regex 2019-04-03 12:20:53 +02:00
Davide De Rosa d72b583900 Improve parsing of PUSH_REPLY prefix 2019-04-03 12:20:53 +02:00
Davide De Rosa 27901c991b Skip deinit documentation 2019-04-02 19:18:23 +02:00
Davide De Rosa ccb6329f05 Don't parse a block begin while inside a block
If a PEM contained anything like <foobar>, the parser was doomed.

Fixes #78
2019-04-02 19:07:48 +02:00
Davide De Rosa 11fd418f82 Extend encrypted private key quick test
Test .ovpn didn't use an PKCS#8 key due to a slip-up. Fixing it
unveiled that isEncrypted returned false for PKCS#8 keys.

Fixes #80
2019-04-02 11:41:18 +02:00
Davide De Rosa 22f80735ca Strip certificate preamble
Fixes #78
2019-04-02 00:55:58 +02:00
Davide De Rosa def622506b Check PKCS#1 via "Proc-Type" presence instead 2019-04-02 00:37:52 +02:00
Davide De Rosa 47b80d5361 Refactor to decrypt generic key 2019-04-02 00:31:54 +02:00
Davide De Rosa a6387679f1 Update data count as soon as tunnel is up
Zero is better than nil.
2019-03-30 23:35:50 +01:00
Davide De Rosa 0bfc1e08eb Fix retarded Swift pointer API somehow 2019-03-30 23:18:45 +01:00
Davide De Rosa 207a4f063a Replace deprecated Data(bytes:) 2019-03-30 23:18:45 +01:00
Davide De Rosa 8dfd5f23c1 Handle unknown enum defaults 2019-03-30 23:18:45 +01:00
Davide De Rosa 5120bcae0a Migrate to Swift 5 2019-03-30 23:18:45 +01:00
Davide De Rosa f686a0aee4 Fix Xcode warnings 2019-03-30 20:16:04 +01:00
Davide De Rosa 44fb5a5b48 Track data count in shared UserDefaults
Default disabled (dataCountInterval = 0).
2019-03-30 19:56:26 +01:00
Davide De Rosa d03f1bd9af Fix checksEKU not propagated to TunnelKitProvider 2019-03-26 00:37:35 +01:00
Davide De Rosa 00c76f707f Throw specific error if unable to decrypt
Normally a bad passphrase.
2019-03-25 19:24:35 +01:00
Davide De Rosa ffcccb5420 Throw specific error on missing passphrase
So that client can retry with a passphrase.
2019-03-25 18:49:53 +01:00
Davide De Rosa b07ec88ff2 Add passphrase parameter to ConfigurationParser
Use it to decrypt encrypted PEMs.
2019-03-25 18:48:59 +01:00
Davide De Rosa f37bfb3579 Implement RSA privkey decryption via OpenSSL 2019-03-25 18:45:00 +01:00
Davide De Rosa 53f3048674 Add missing documentation 2019-03-25 15:46:15 +01:00
Davide De Rosa 9c4d491a3b Make floating XXX a FIXME 2019-03-25 10:37:15 +01:00
Davide De Rosa 54a477ce67 Randomize endpoints in ConnectionStrategy
Fixes #76
2019-03-25 10:32:23 +01:00
Davide De Rosa 7ce31c3184 Parse randomize endpoints from --remote-random 2019-03-25 10:32:08 +01:00
Davide De Rosa 42227fcc00 Add SessionProxy.Configuration.randomizeEndpoint 2019-03-25 10:32:08 +01:00
Davide De Rosa 9c0205614b Disable rebind-on-float until a solid fix
Mitigates #75
2019-03-25 10:10:08 +01:00
Davide De Rosa 71d54e2dc3 Send IV_LZO only if supported 2019-03-25 10:07:57 +01:00
Davide De Rosa 04fbbb1fe1 XXX: Fix log glitch 2019-03-21 19:40:42 +01:00
Davide De Rosa ac418f414a Make masksPrivateData optional
Do not break Codable compatibility.
2019-03-21 19:32:06 +01:00
Davide De Rosa fad20668b0 Override masksPrivateData via AppExtension
Unmask in demo.

Fixes #62
2019-03-21 19:19:22 +01:00
Davide De Rosa f32c231b90 Remove deprecated API
Should have done so in 1.5.0
2019-03-21 18:30:40 +01:00
Davide De Rosa 79509a1ea1 Fix execution queue in network handler 2019-03-20 18:01:57 +01:00
Davide De Rosa a5b8907918 Postpone shutdown until notification is written
Otherwise socket might be force-closed while sending the packet.
2019-03-20 17:57:56 +01:00
Davide De Rosa c93461b153 Send explicit exit notification if UDP
Implement --explicit-exit-notify by default.

Fixes #29
2019-03-20 17:57:56 +01:00
Davide De Rosa c6ab3b57db Fix a few return in wrong scope 2019-03-20 17:57:56 +01:00
Davide De Rosa 9d479a9aba Handle LZO compression in --compress framing
Share parse block between comp-lzo and compress.

It seems that --compress sends NO_COMPRESS w/o swapping.

Also suppress redundant LZOIsSupported(), implied by non-nil value
of self.lzo.
2019-03-20 09:04:27 +01:00
Davide De Rosa 4b9ffcfb4e Accept LZO regardless of framing 2019-03-20 09:04:27 +01:00
Davide De Rosa 9a6f3d638c Recognize "--compress lzo" option as legal 2019-03-20 09:04:27 +01:00
Davide De Rosa 7a449f90ee Advertise LZO support 2019-03-19 15:14:29 +01:00
Davide De Rosa 0eb0e3e478 Parse compression from several places
- PUSH_REPLY
- .ovpn configuration
- TunnelKitProvider
2019-03-19 15:14:29 +01:00
Davide De Rosa 4d6d51818d Compress/decompress LZO data packets
Return compressionHeader from parse blocks.
2019-03-19 15:14:27 +01:00
Davide De Rosa 197679057d Return NSData from parsePayloadWithBlock
More friendly to (de)compression stage.
2019-03-19 15:12:56 +01:00
Davide De Rosa 5cc32b1060 Wrap minilzo into dynamic Obj-C plugin
Handle library errors to some extent.
2019-03-19 15:12:46 +01:00
Davide De Rosa 08b04c8e02 Fix not propagated checksEKU flag 2019-03-18 17:27:48 +01:00
Davide De Rosa 7d69e09c53 Update copyright 2019-03-09 11:44:18 +01:00
Davide De Rosa 6b29c9e06c Double check reasserting during reconnection
A forced shutdown might happen during the recovery interval (1s).
2019-03-08 13:19:52 +01:00
Davide De Rosa 70ed2a4d83 Reset reasserting flag on plain shutdown 2019-03-08 13:16:03 +01:00
Davide De Rosa e3b8a6b16b Shut down on link error
Because it doesn't seem to recover until the tunnel dies.
2019-03-08 13:08:54 +01:00
Davide De Rosa e849e6c0da Reject <connection> blocks in .ovpn
- Use enumerateComponents for boolean test.
- Fix a test compile error on the way.
2019-03-04 17:39:37 +01:00
Davide De Rosa 1c1547fc8f Fix DNS servers not serialized to AppExtension 2019-03-03 10:51:36 +01:00
Davide De Rosa 86420ba8ea Shut down on compressed data packet
Re-inforce #65 at the data path level. Should now cover all
compression scenarios.
2019-02-28 17:16:14 +01:00
Davide De Rosa 0f2a5e1e14 Check NULL when verifying EKU 2019-02-25 23:33:31 +01:00
Davide De Rosa 8fe43269ab Catch errors on CA MD5 calculation (PIA only) 2019-02-25 23:33:26 +01:00
Davide De Rosa d1b5c94be9 Fix potential overflow in AEAD IV length 2019-02-25 23:23:43 +01:00
Davide De Rosa 06a872c448 Add ProviderError.serverCompression mapping 2019-02-25 23:09:06 +01:00
Davide De Rosa 3aadaf0186 Shut down when server pushes compression enabled 2019-02-25 23:01:21 +01:00
Davide De Rosa 367e8b7e08 Track whether server pushed a compression option 2019-02-25 23:01:21 +01:00
Davide De Rosa 8c1b95eaa7 Group PushReply regexes 2019-02-25 23:01:21 +01:00
Davide De Rosa d6076b045a Make checksEKU optional to fall back on decoding 2019-02-25 11:16:26 +01:00
Davide De Rosa 010da904fa Parse EKU choice in .ovpn from remote-cert-tls
Fix unhandled extra spaces in dhcp-option DNS regex.
2019-02-25 11:16:26 +01:00
Davide De Rosa 265aca0829 Make EKU verification optional in TLSBox 2019-02-25 11:16:26 +01:00
Davide De Rosa c244b29a8f Parse DNS servers from configuration 2019-01-05 22:29:16 +01:00
Davide De Rosa 13c41d80e7 Allow overriding DNS servers
Fall back to those in PUSH_REPLY.
2019-01-05 22:25:58 +01:00
Davide De Rosa 03478b6fbf Add jazzy doc to ConfigurationParser 2018-11-12 10:42:04 +01:00
Davide De Rosa 40fd2c7ede Parse configuration from .ovpn file 2018-11-10 10:58:06 +01:00
Davide De Rosa f91db4cbf1 Move EndpointProtocol/SocketType to Core 2018-11-10 10:48:17 +01:00
Davide De Rosa 0800c943a8 Add shortcut extension for creating regexes
Also expose enumeration methods for internal reuse.
2018-11-10 10:47:58 +01:00
Davide De Rosa 36e93651ba Replace hardcoded 32 tag length in tls-crypt 2018-11-06 10:35:37 +01:00
Davide De Rosa b366925125 Hardcode digestLength to tagLength in CTR
Code is not using digestLength in any way.
2018-11-06 10:35:19 +01:00
Davide De Rosa 7ffbf41b30 Expose internal tag length, 0 if none 2018-11-06 10:31:55 +01:00
Davide De Rosa 2fde43b1fc Keep tag length constants private
Also AD length in AEAD was an unresolved relic.
2018-11-06 10:25:35 +01:00
Davide De Rosa caea6624fc Unmask IPv4 netmask and IPv6 prefix
Masking that is useless and paranoid. May help debugging.
2018-11-05 20:40:12 +01:00
Davide De Rosa e198e80595 Use standard inet_ntop/pton for IPv4 conversion
Swap endianness internally.
2018-11-05 20:21:10 +01:00
Davide De Rosa b32c1848be Unmask harmless destination port 2018-11-05 15:48:34 +01:00
Davide De Rosa 9c989dabf5 Fix IPv4/UInt32 calculations 2018-10-28 00:26:15 +02:00
Davide De Rosa 9e2bdd22ac Pick default values from static constant 2018-10-26 11:07:46 +02:00
Davide De Rosa 84e216f56d Deprecate lastErrorKey, encapsulate access 2018-10-25 22:36:31 +02:00
Davide De Rosa 3cc511822d Deprecate debugLogKey, hardcode filename 2018-10-25 22:36:31 +02:00
Davide De Rosa 8f328709c8 Wrap TKP.Configuration fields in SP.Configuration
Take credentials out of SP.Configuration. Makes sense as they
never appear in e.g. an .ovpn file.
2018-10-25 18:34:03 +02:00
Davide De Rosa e962603098 Allow SP.Configuration customization via builder 2018-10-25 18:34:03 +02:00
Davide De Rosa d6e27938bc Make usesPIAPatches optional
For compatible decoding.
2018-10-25 18:34:03 +02:00
Davide De Rosa 197d29042c Take a cache URL in SessionProxy to store PEMs 2018-10-25 18:34:03 +02:00
Davide De Rosa 3fd0329736 Use CryptoContainer in SessionConfiguration
Instead of paths.
2018-10-25 18:34:02 +02:00
Davide De Rosa ca77858bf0 Move CryptoContainer to Core 2018-10-25 18:34:02 +02:00
Davide De Rosa f1efac073c Export and document log shortcuts in Configuration 2018-10-24 21:06:04 +02:00
Davide De Rosa f5d12300f9 Save debug log to file in app group container
Don't bog UserDefaults. Reuse debugLogKey for the log filename.
2018-10-24 21:06:04 +02:00
Davide De Rosa b35fb34da5 Cap masked hash to 16 hexes 2018-10-24 18:50:36 +02:00
Davide De Rosa ae85337e91 Mask log.debug 2018-10-24 18:47:41 +02:00
Davide De Rosa 033763f372 Mask log.info 2018-10-24 18:47:41 +02:00
Davide De Rosa 25d84f6530 Add internal flag for masking private data
Hardcoded to true. Private data is mostly hostname/IP addresses
and routing information.
2018-10-24 18:23:10 +02:00
Davide De Rosa b1a79d6451 Shut down on server-initiated HARD_RESET
Session is stale and not recoverable (lame duck).
2018-10-24 12:31:37 +02:00
Davide De Rosa 0b79ce4194 Handle server-initiated SOFT_RESET 2018-10-24 12:22:47 +02:00
Davide De Rosa d829247e6e Simplify socket shutdown code
Drop weird (old?) linkFailures check.
2018-10-24 09:42:18 +02:00
Davide De Rosa 91349fd780 Take shouldChangeProtocol out of GenericSocket
Behavior is not exactly similar in UDP and TCP.
2018-10-24 09:42:03 +02:00
Davide De Rosa 8b59fe6f4c Use RawRepresentable where adequate 2018-10-24 09:19:50 +02:00
Davide De Rosa e3a5302e06 Check NULL EKU and simplify OID comparison 2018-10-24 00:43:01 +02:00
Davide De Rosa 3a95568d0b Remove unused code 2018-10-24 00:36:18 +02:00
Davide De Rosa 440a7f7da8 Verify server cert EKU
Fixes #27
2018-10-23 23:46:37 +02:00
Davide De Rosa c32185b524 Review/complete mapping to ProviderError
Errors from TunnelKitNative were not mapped. Also, move TLS CA
verification error to TLSBox domain.
2018-10-23 23:44:25 +02:00
Davide De Rosa f5d9720b01 Halt TLS on internal failure 2018-10-23 23:44:25 +02:00
Davide De Rosa f725779e0e Convert ct pulling to try/catch 2018-10-23 22:47:04 +02:00
Davide De Rosa 1ad4a62593 Report error status to shared defaults
Retain after disposal, unless manually stopped.
2018-10-22 01:04:36 +02:00
Davide De Rosa 7ffb997904 Add defaults key for last error 2018-10-22 01:04:36 +02:00
Davide De Rosa 4bf7f1a1fc Bridge SessionError to public ProviderError 2018-10-22 01:04:36 +02:00
Davide De Rosa 6200a0bc1c Split configuration and session errors 2018-10-22 01:04:36 +02:00
Davide De Rosa f93634bd7a Respect link MTU in TCP
Mitigates #39
2018-10-22 00:56:08 +02:00
Davide De Rosa 26fc12c2ef Add missing fclose() after fopen()
Slip-up from #32
2018-10-21 00:22:36 +02:00
Davide De Rosa fbd3f977d5 Parse static key from file 2018-10-19 17:22:26 +02:00
Davide De Rosa 28d9f3ee68 Add crypt strategy 2018-10-19 17:06:29 +02:00
Davide De Rosa 55e0aa5c5a Implement and test crypt serializer 2018-10-19 17:06:26 +02:00
Davide De Rosa 3ec4a7d292 Implement AES-CTR encryption 2018-10-19 16:56:20 +02:00
Davide De Rosa a430beb35f Improve Swift bridging of CryptoFlags 2018-10-19 16:56:20 +02:00
Davide De Rosa 8ccc4c08a5 Add auth strategy 2018-10-19 16:20:56 +02:00
Davide De Rosa 0fce5abdde Implement auth serializer 2018-10-19 16:20:56 +02:00
Davide De Rosa a974646558 Add macros for replay packet id 2018-10-19 16:12:07 +02:00
Davide De Rosa 66735ec118 Prepare API to enable TLS wrapping
Extensible TLSWrap parameter.
2018-10-19 16:11:35 +02:00
Davide De Rosa 51720c1fbc Split ControlPacket header/content serialization
rawSerializeTo: does not include opcode|session_id.
2018-10-19 16:11:35 +02:00
Davide De Rosa 372fa194a5 Parse indexed keys from StaticKey 2018-10-19 16:11:35 +02:00
Davide De Rosa 5c8c361fce Add StaticKey class for static OpenVPN keys 2018-10-19 16:11:35 +02:00
Davide De Rosa a85c4ea6da Rename packetId flag to more proper IV 2018-10-19 15:55:16 +02:00
Davide De Rosa bff9352c6e Handle encryption/peer-id in a stateless manner
Fixes #30
2018-10-19 15:54:55 +02:00
Davide De Rosa 70b50a7a2e Parse data opcode when decrypting
Assume it could be DATA_V1/V2 regardless of peer-id.
2018-10-19 11:33:12 +02:00
Davide De Rosa 9b785084e2 Customize HARD_RESET payload when PIA-patched 2018-10-18 13:31:11 +02:00
Davide De Rosa eb8a8b38c2 Restore PIA HARD_RESET code 2018-10-18 12:45:32 +02:00
Davide De Rosa 872e20a95a Add function to compute MD5 from certificate 2018-10-18 12:32:22 +02:00
Davide De Rosa 98c5a015f3 Split endpoint and credentials
Basically drop AuthenticatedEndpoint.
2018-10-06 16:22:02 +02:00
Davide De Rosa 40b733db57 Make credentials optional 2018-10-06 16:21:59 +02:00
Davide De Rosa 093774535d Make CA non-optional
Fix up nullability qualifiers in TLSBox.

Fixes #26
2018-10-06 15:53:22 +02:00
Davide De Rosa 09210b727a Use compression framing description 2018-09-28 08:40:14 +02:00
Davide De Rosa 7b96247c72 Fix interpretation of 0 seconds
0 keep-alive = never
0 reneg seconds = never
2018-09-28 08:39:57 +02:00
Davide De Rosa 24dabe2739 Set peer-info version from bundle
Omit build number for now, seems more complex than expected to
accomplish with CocoaPods.
2018-09-24 10:26:43 +02:00
Davide De Rosa d6958ed28d Revert LZO deprecation, still widely used 2018-09-23 14:23:52 +02:00
Davide De Rosa 58726a67d7 Update SwiftyBeaver for MemoryDestination
See for reference:

- https://github.com/pia-foss/tunnel-apple/pull/15
- https://github.com/SwiftyBeaver/SwiftyBeaver/pull/299
2018-09-23 14:14:25 +02:00
Davide De Rosa 668474d75c Indent negotiated parameters in log 2018-09-21 19:53:38 +02:00
Davide De Rosa 44fc38e8ef Rename encryption headers for consistency
The shared prefix makes it easier to associate them with
implementation files.
2018-09-20 09:03:33 +02:00
Davide De Rosa 600c93be55 Drop overheadLength, only used in one place 2018-09-20 09:03:33 +02:00
Davide De Rosa dd02c92aa5 Expose methods for capacity prediction
Encapsulate encrypt/decrypt buffer capacity calculation.
2018-09-20 09:03:33 +02:00
Davide De Rosa f6ee187db7 Use symbolic data header length 2018-09-20 09:03:33 +02:00
Davide De Rosa aa39414a77 Rename packet header to opcode (first byte) 2018-09-20 09:03:31 +02:00
Davide De Rosa fe92fcd91c Remove NSData versions from Encrypter/Decrypter
Move to test target. Conversely, bring ZeroingData.data extension
into main targets.
2018-09-20 09:01:44 +02:00
Davide De Rosa 1099d9adbf Improve control channel log readability
- Use consistent convention in id logging.
- Describe packet codes.
- Encapsulate packet logging.
2018-09-20 09:00:11 +02:00
Davide De Rosa ce94a594f9 Bring code/key deserialization into serializer
Duplicates first byte parsing but makes testing more meaningful,
because there's no need to provide a bogus code/key pair.
2018-09-20 08:59:50 +02:00
Davide De Rosa 11cb312c02 Move control channel logic to PlainSerializer 2018-09-19 22:04:52 +02:00
Davide De Rosa 595cae3563 Add strategy for control channel serialization 2018-09-19 22:04:52 +02:00
Davide De Rosa 3608860b9d Move sessionId and remoteSessionId 2018-09-19 22:04:52 +02:00
Davide De Rosa 1573b2070a Move control queue management
- Out packets
- In packets
- Acks
2018-09-19 22:04:52 +02:00
Davide De Rosa e6dd4de472 Move control data parsing 2018-09-19 22:04:52 +02:00