Commit Graph

393 Commits

Author SHA1 Message Date
Davide De Rosa b8cd969a1a Fall back to configurable preset DNS servers
Default to CloudFlare 1.1.1.1

Hard time making it work with system DNS servers. Retry later.
2019-04-25 17:18:28 +02:00
Davide De Rosa 31d9019f1a Read system-wide DNS servers
Add libresolv to podspec.
2019-04-25 16:36:16 +02:00
Davide De Rosa 1d3660459e Merge local and remote DNS servers
- Local first
- Remote last
2019-04-25 16:18:54 +02:00
Davide De Rosa 82394e0433 Skip DNS settings if no servers are provided 2019-04-25 16:18:54 +02:00
Davide De Rosa 4ce2d78c5a Adjust log of routing policies
Consistent with print configuration.
2019-04-25 16:18:52 +02:00
Davide De Rosa 1b0c9979ce Log "default" DNS when servers are empty 2019-04-25 16:09:04 +02:00
Davide De Rosa 3f37489c13 Handle pushed routing policies 2019-04-25 16:02:19 +02:00
Davide De Rosa 7382616e8b Parse routing policies for TunnelKitProvider 2019-04-25 14:39:47 +02:00
Davide De Rosa f9f642b64e Set as default gateway based on routing policies
Also fix IPv6 routes not properly set.
2019-04-25 14:39:40 +02:00
Davide De Rosa 224a76ac58 Parse --redirect-gateway from configuration
FIXME: for now only redirects ALL traffic when the option is found
in the configuration file, whatever the arguments.

Also drop unnecessary base options in tests as everything was made
optional recently.
2019-04-25 14:39:23 +02:00
Davide De Rosa 1b8647bcac Convert PacketSteram to Obj-C
For better TCP efficiency.
2019-04-25 12:42:29 +02:00
Davide De Rosa ef5180a4ed Set tls-auth/crypt timestamp once
Packets rejected due to replay protection.

Fixes #88
Fixes #61
2019-04-23 23:07:32 +02:00
Davide De Rosa 65af163aeb Do not resend non-acked packets if reliable
In control channel.
2019-04-23 23:06:39 +02:00
Davide De Rosa 707db2c6de Add keydir to local options 2019-04-20 17:20:45 +02:00
Davide De Rosa 9b8be02c2a Shut down when no IPv4/6 routing available
Would fake-connect without VPN icon otherwise.
2019-04-19 09:45:15 +02:00
Davide De Rosa c565e32dcd Add "dev-type tun" to local options
Plus other hardcoded options like key-method and tls-client.

Seems that older OpenVPN servers didn't send routing info in
PUSH_REPLY if dev-type is not specified explicitly.

Fixes #86
2019-04-18 13:10:57 +02:00
Davide De Rosa 95ba9dacdb Fix typo 2019-04-18 12:02:23 +02:00
Davide De Rosa 887e2ae55d Consider stale if HARD_RESET while connected
Was disconnecting when more than one HARD_RESET_SERVER was
received during negotiation.
2019-04-17 09:24:16 +02:00
Davide De Rosa 233aa02169 Add FIXME for default DNS from network interface 2019-04-17 00:50:53 +02:00
Davide De Rosa b199064b94 Only override domain if non-nil 2019-04-17 00:50:53 +02:00
Davide De Rosa 28fd80f4e0 Treat empty DNS servers as nil
Empty local DNS array was pretty much hiding server-pushed DNS.
2019-04-17 00:50:53 +02:00
Davide De Rosa 6fd6d228bf Loop pulling plain text from TLS
There might be more data to read.

Fixes #71, #73
2019-04-17 00:18:02 +02:00
Davide De Rosa 88cd62064a Handle continuation in PUSH_REPLY 2019-04-16 23:59:56 +02:00
Davide De Rosa 380ac2beac Throw to exit PUSH_REPLY parsing on continuation 2019-04-16 23:59:56 +02:00
Davide De Rosa 23b6e3b98e Relax negotiation timeouts 2019-04-16 23:59:56 +02:00
Davide De Rosa d097afccdc Resend PUSH_REQUEST every 2 seconds
Regardless of link reliability.
2019-04-16 23:43:33 +02:00
Davide De Rosa ad964e2041 Send local options with authentication
Fixes some obsolete servers requiring cipher keysize.
2019-04-15 17:37:57 +02:00
Davide De Rosa 322242de5c Fix malformed key generation message
Make nullTerminated argument explicit, easier to debug.

Fixes #67
2019-04-13 23:55:18 +02:00
Davide De Rosa 0a956f5b9f Handle dhcp-option PROXY_BYPASS 2019-04-13 19:23:02 +02:00
Davide De Rosa b118030d43 Enable both HTTP and HTTPS proxies 2019-04-13 17:55:08 +02:00
Davide De Rosa 904e7bae21 Apply proxy settings if present
Fixes #74
2019-04-12 08:21:04 +02:00
Davide De Rosa ef9f3c6d0a Parse proxies into AppExtension configuration 2019-04-12 08:21:04 +02:00
Davide De Rosa 5fb70b5bab Parse dhcp-option PROXY_HTTP* into Configuration 2019-04-12 08:10:47 +02:00
Davide De Rosa 26cec205a7 Move builder() to extension 2019-04-11 16:46:52 +02:00
Davide De Rosa 5df614b5e2 Fix incomplete builder() from Configuration
Adding a Configuration field is error-prone beyond reason...
2019-04-11 15:30:14 +02:00
Davide De Rosa 914864c31a Infer serverAddress from sessionConfiguration 2019-04-09 20:45:28 +02:00
Davide De Rosa 3fe9c6de6d Make hostname optional in ConnectionStrategy
Assume preferring resolved addresses.
2019-04-09 20:34:03 +02:00
Davide De Rosa 9f358d6326 Accept nil cipher/digest in AppExtension
Reorganize code for clarity.
2019-04-07 08:35:40 +02:00
Davide De Rosa 3717136bd9 Move EndpointProtocol Codable to Core spec 2019-04-05 00:46:45 +02:00
Davide De Rosa 5e2f9b59f1 Rename ParsingResult to Result
No need to prefix an inner class.
2019-04-04 19:22:22 +02:00
Davide De Rosa 7333ea226c Document ignored settings client-side 2019-04-04 18:51:06 +02:00
Davide De Rosa 8394fd0676 Rely on default ConfigurationBuilder.init() 2019-04-04 18:51:06 +02:00
Davide De Rosa 55534df6fa Work around cipher/digest/framing issues
- Make them optional
- Set default values inside SessionProxy

Fallback is not needed anywhere else.
2019-04-04 18:51:06 +02:00
Davide De Rosa 0d86bd20b6 Expose ConfigurationBuilder.init() 2019-04-04 18:51:06 +02:00
Davide De Rosa 4dc9539260 Rename OptionsError to ConfigurationError 2019-04-04 18:51:06 +02:00
Davide De Rosa a2250686b6 Merge OptionsBundle into Configuration
FIXME: issues with non-optional .cipher and .compressionFraming

Because:

- No pushed cipher (nil) is NOT .aes128cbc
- No pushed framing (nil) is NOT .disabled

Breaks conditions on pushed cipher/framing via PUSH_REPLY.
2019-04-04 18:51:06 +02:00
Davide De Rosa cfe61d5d40 Retain .endpointProtocols for migration
For deserialization of old format.
2019-04-04 13:10:33 +02:00
Davide De Rosa 7aec0637b2 Move endpoints inside SessionProxy.Configuration
Make optional.

TunnelKitProvider still gets hostname from .serverAddress rather
than SessionProxy.Configuration

Also drop useless Equatable implementations.
2019-04-04 13:09:50 +02:00
Davide De Rosa e8396ec2cd Parse search domain from configuration
Fixes #77
2019-04-03 14:29:09 +02:00
Davide De Rosa 370e68aa3f Parse search domain from dhcp-option DOMAIN 2019-04-03 14:29:09 +02:00
Davide De Rosa fe2ad52df0 Document OptionsBundle
Move most from SessionProxy.Configuration.
2019-04-03 13:34:08 +02:00
Davide De Rosa f9ae3412a5 Move malformed error out of unrelated SessionError
Also give more detail about the reason.
2019-04-03 13:20:49 +02:00
Davide De Rosa 42232804ca Rename file to public entity 2019-04-03 13:19:47 +02:00
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