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Author SHA1 Message Date
henri
7c1f9aa780 Removed a kinda brutal assert(0); 
Don't abort when a socks4 proxy returns an invalid message,
just ignore it instead.
 2013-04-22 19:36:07 +00:00
henri
157922dfe0 Replaced proxy_chain->specstr by node->nodestr. 
The global proxy chain specification string wasn't
used anywhere, and I'd need a string to represent
each node of the chain.
 2013-04-22 19:35:59 +00:00
henri
5cf3780a93 Added a nsock log message to nsock_connect_internal. 
Explicitely indicates that a connection is about to be
redirected through the proxy chain.
 2013-04-22 19:35:50 +00:00
henri
1b45bfef14 Made NSE use proxychains too. 2013-04-22 19:35:42 +00:00
henri
1455bf0624 Declare local constant string as array instead of pointer to 
follow coding best practices. Also made string static.
 2013-04-22 19:35:30 +00:00
henri
5be3de1477 Minor style fixes. 2013-04-22 19:35:22 +00:00
henri
9d8c84b17f Replaced hardcoded value by a sizeof() call. 2013-04-22 19:35:14 +00:00
henri
b54590c344 Don't artificially increase timeouts to establish proxy 
connections. It's now up to the caller to adjust timeout
values accordingly.
 2013-04-22 19:35:07 +00:00
henri
a729e0047c Reworked expression for readability. 2013-04-22 19:34:58 +00:00
henri
4998b3f20a Updated email addresses in licence terms of the new files. 2013-04-22 19:34:50 +00:00
henri
a5fee3f2b4 Updated nsock_proxy to use nsock_log_* 2013-04-22 19:34:41 +00:00
henri
141184b7e8 Added a TODO entry for socks5 support. 2013-04-22 19:34:34 +00:00
henri
7e49052ded Added a branch-specific todo file. 2013-04-22 19:34:26 +00:00
henri
11fdeed8fb Restrict proxying to TCP operations. 2013-04-22 19:34:18 +00:00
henri
ab6a7a4f9e Added SOCKS4 support 
Beware socks4a extention is not supported. Target hostnames
therefore need to be resolved somehow.

Initial patch by David and sed :)
 2013-04-22 19:34:11 +00:00
henri
a3fbe7d7d6 Style change, neater syntax. 2013-04-22 19:34:01 +00:00
henri
af59333757 Perform the proxy connexion hook in connect_internal(). 
This allows to generically handle all kinds of connexions instead of manually
providing a handler for tcp connect, ssl connect...

The drawback is that would it makes it harder to implement support of SSL
proxies. Not sure whether there's a need though, looks like regular clients
don't handle them at least.
 2013-04-22 19:33:53 +00:00
henri
f1cfcb3126 Added a --proxy option as an alias of --proxies as I'm getting tired of always 
typing it wrong.
 2013-04-22 19:33:44 +00:00
henri
5906c97ff9 Enfore node=NULL on error. 2013-04-22 19:33:37 +00:00
henri
8902a7c1bb Let our DNS resolver use nsock proxy chains. 2013-04-22 19:33:28 +00:00
henri
19a01d75ab Let FPEngine use nsock proxy chains. 2013-04-22 19:33:22 +00:00
henri
18cf677548 Let NSE use nsock proxy chains. 2013-04-22 19:33:15 +00:00
henri
6700abe1e8 Added svn properties. 2013-04-22 19:33:08 +00:00
henri
71e23318e9 Removed list of todo items from source. 2013-04-22 19:33:00 +00:00
henri
6e8b30d721 Added support to resolve proxy hostnames. 2013-04-22 19:32:52 +00:00
henri
b7b3b4bd3e Default port is set to -1 (and not zero) when not specified in proxy specification string. 2013-04-22 19:32:44 +00:00
henri
99258673ad Added handling of the new NSE_STATUS_PROXYERROR case. 2013-04-22 19:32:36 +00:00
henri
c9d237f26b Added a new NSE_STATUS_PROXYERROR status type to report proxy-related errors 
back to caller.
 2013-04-22 19:32:29 +00:00
henri
da1559b237 Replaced a couple macros by corresponding static inline functions. 
Removed unused PROXY_CTX_NODES() macro.
 2013-04-22 19:32:20 +00:00
henri
6c0d537efb Removed unused http_proxy_info structure. 2013-04-22 19:32:11 +00:00
henri
152490e630 Removed per-node information structures as well as data encoding/decoding 
interface.

These were unused and I think won't be required by any proxy type (HTTP and
SOCKS).
 2013-04-22 19:32:04 +00:00
henri
173adc678b Implemented a more robust URI parser. Code largely adapted from ncat/http.c. 2013-04-22 19:31:56 +00:00
henri
26f918e310 Use an intermediate proxy_chain pointer for readability. 2013-04-22 19:31:47 +00:00
henri
ba27c10458 Removed the proxy-specific tcp_connect hook. 
This simplifies the interface that proxies export to the library but also relies
upon the assumption that a proxy chain starts with a TCP connection from the
scanner to the next hop proxy. That will be enough ATM.
 2013-04-22 19:31:40 +00:00
henri
4d5bb41361 Added skeletton for having px_info list in each Nsock IOD. 
When establishing the tunnel through proxy chain, we need to track status of
each proxy (storing R/W buffers, stats, retries...).

This patch lets proxies store and manage whatever structure they want to have
for this in a Nsock IOD. Since types can differ between proxy types, the
proxy_info are stored as a list of void *, ordered like the proxy nodes.
 2013-04-22 19:31:30 +00:00
henri
21327ee56c Return 1 on success to (try to) improve consistency. 2013-04-22 19:31:21 +00:00
henri
af65c7448f Removed 'data_' prefixes to encoding/decoding functions to avoid confusion with functions that deal with proxy internal data structures. 2013-04-22 19:31:14 +00:00
henri
5168ff9113 Moved prototypes to nsock_proxy.h 2013-04-22 19:31:06 +00:00
henri
4b9ff7f562 Removed unused macros. 2013-04-22 19:30:57 +00:00
henri
f1a04abd6b Removed the global ProxyOps list. 
Each proxy node now provides a pointer to its operations struct.
 2013-04-22 19:30:49 +00:00
henri
3451220630 Refactored proxy code to use a "strategy" design pattern. 
Proxy backends are selected at runtime. Each proxy exports a list of operations
to the rest of the library. This is similar to the way IO engines are
implemented within nsock.
 2013-04-22 19:30:40 +00:00
henri
08c44fe775 Added nsock_proxy.h to the DEPS list. 2013-04-22 19:30:30 +00:00
henri
48354754a8 Renamed proxy actions into proxy op, which seems to be rather more meaningful. 2013-04-22 19:30:23 +00:00
henri
e1030f2fe7 Cosmetic fixes. 2013-04-22 19:30:14 +00:00
henri
f5e437cdbf Removed undesired debugging printf() call. 2013-04-22 19:30:07 +00:00
henri
2b3a3ca5df Fixed ProxyAction extern declaration. 2013-04-22 19:29:58 +00:00
henri
34e825f26e Use the new API that nsock provides for proxychain parsing/handling. 2013-04-22 19:29:50 +00:00
henri
91af533ca2 Added missing initializer. 2013-04-22 19:29:43 +00:00
henri
641d63efb4 Reduced scope of the top level proxy event handler. 
There is no need anymore for exporting this function to the rest of the library.
It's called by the proxy hooks when registering new events.
 2013-04-22 19:29:35 +00:00
henri
9084805bbf Added destructor for proxy_chain_context. 2013-04-22 19:29:26 +00:00