ValdikSS
860f483ac3
IPv6 DNS redirection
2018-02-16 19:45:55 +03:00
ValdikSS
3d36127f5b
Handle IPv6 packets and prepare for IPv6 DNS redirection
2018-02-16 17:35:24 +03:00
ValdikSS
8e7f4ff505
Properly exclude Teredo
2017-12-25 00:05:28 +03:00
ValdikSS
5e9e1f0eb6
Preliminary IPv6 support.
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No IPv6 support in DNS redirection code. IPv6 DNS request packets
would be dropped.
2017-12-24 20:21:32 +03:00
ValdikSS
3ffce30871
Minor modifications.
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* puts() instead of printf("%s")
* strdup() instead of malloc + strcpy
2017-12-24 20:19:18 +03:00
ValdikSS
eaac2d1a80
Minor service fixes
2017-12-21 23:52:23 +03:00
ValdikSS
ccd21a4281
ntohs -> htons (they produce the same output, but still)
2017-12-21 23:50:07 +03:00
ValdikSS
23babdc8fa
Windows Service support.
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Program can now be started as a Windows Service. No additional
arguments needed. Refer to `service_install` and `service_remove`
scripts in released zip file.
2017-12-20 17:03:22 +03:00
ValdikSS
95765f3ed9
Store fragment_size_message as a pointer
2017-12-20 17:01:21 +03:00
ValdikSS
a5b185c2a9
Set proper options if started without arguments
2017-12-20 12:36:21 +03:00
ValdikSS
c9cd3ac8c7
Fix signed/unsigned integer comparison warning for HTTP fragmentation
2017-12-20 04:05:28 +03:00
ValdikSS
fab9662ac9
Use WinDivert TCP Header structure to change Window Size
2017-12-20 04:04:40 +03:00
ValdikSS
a88ab4337e
Apply HTTP Persistent fragmentation only for sufficiently large packets
2017-12-20 03:33:30 +03:00
ValdikSS
582503452f
Implement TCP fragmentation for HTTP Persistent (keep-alive) sessions.
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New option `-k` splits HTTP request into two segments, and either
send only the first one (Windows would retransmit the other one
based on ACK number in ACK reply) or both (with `-n` enabled).
This fixes behaviour on some DPI which trace persistent sessions
but do not reassemble packages.
2017-12-20 02:10:59 +03:00
ValdikSS
03e36b968a
Free allocated error message string
2017-12-20 01:48:38 +03:00
ValdikSS
312d2b1d55
Remove unused IPV4_TOTALLEN_OFFSET
2017-12-20 01:48:20 +03:00
ValdikSS
6827b6ad51
Do not add hostnames less than 4 characters long
2017-12-17 01:46:32 +03:00
ValdikSS
60e87f769a
Minor modifications
2017-12-17 00:28:11 +03:00
ValdikSS
bfed8638e5
Implement blacklist.
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Only domains and subdomains from the blacklist file would be processed
with HTTP modifications. Does not affect HTTPS data.
2017-12-17 00:26:11 +03:00
ValdikSS
72516c0b2b
Add information about --dns-verb option
2017-12-16 20:24:40 +03:00
ValdikSS
f11ca2400c
Fix memory leak in dnsredir
2017-12-16 17:53:06 +03:00
ValdikSS
dd4d6bc5c6
Do not print DNS warnings by default and drop duplicate requests.
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Windows is known to use all available interfaces for DNS requests,
which is handled as a duplicate (retransmission) in dns redirector.
It's safe to just drop these duplicates.
2017-12-16 14:30:42 +03:00
R4SAS
30bb1a665a
make it more usable with MSYS and linux MinGW both ( #48 )
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* make it more usable
* update README
2017-12-13 18:13:54 +04:00
ValdikSS
5f231996d4
Fix incorrect host header memmove()s. Fixes #47
2017-12-13 01:42:29 +03:00
ValdikSS
81718f1a53
Small fix for dnsredir
2017-12-10 20:44:50 +03:00
ValdikSS
064cf575b6
Parse DNS packet only when DNS redirection is enabled
2017-12-09 02:36:45 +03:00
ValdikSS
a67f42eebc
Use defined HOST_MAXLEN
2017-12-07 22:38:41 +03:00
ValdikSS
363b2dca37
Flush DNS cache if --dns-addr is used
2017-12-07 22:38:21 +03:00
ValdikSS
1e8835cfe5
Small fixes
2017-12-07 13:03:01 +03:00
ValdikSS
c6c071e35f
Update README.md
2017-12-06 03:21:07 +03:00
ValdikSS
a182f52207
New experimental feature: UDP DNS redirection
2017-12-06 03:09:58 +03:00
ValdikSS
61e39bc095
New feature: additional processed TCP ports
2017-12-06 03:07:16 +03:00
ValdikSS
9b9be302cb
New option "-w": try to find and parse HTTP traffic on all processed ports (not only on port 80)
2017-12-06 03:07:11 +03:00
ValdikSS
c7905f0b31
Mix HTTP Host header value
2017-12-04 22:06:46 +03:00
ValdikSS
da1e2e8aac
Serious refactoring
2017-12-04 22:01:25 +03:00
ValdikSS
87c354addf
Update Makefile
2017-09-07 17:35:57 +03:00
ValdikSS
9fa2956065
Calculate checksums even there's no packet modifications.
2017-09-07 17:35:25 +03:00
ValdikSS
2f0429027d
Small refactoring
2017-09-04 22:14:17 +03:00
ValdikSS
feb03c74c8
Print message of HTTP fragmentation > 2 incompatibility.
...
We can't reliably distinguish HTTP data from other data on port 80 when fragmentation is used.
HTTP method code has a special case which tries to find HTTP method when fragmentation = 1 or 2 is used,
but not for other values.
2017-08-28 11:46:59 +03:00
ValdikSS
4c13435ee3
Handle Host header after User-Agent header in the HTTP packet. Fixes #29 .
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Most browsers would put Host header as early as they could, but not Microsoft Edge.
2017-08-28 11:45:05 +03:00
ValdikSS
ee665ee3bd
Search for HTTP methods in fragmented packets with Window Size 1 or 2. Fixes #30 .
2017-08-28 11:43:55 +03:00
ValdikSS
00e4964e73
Remove webdav HTTP methods. They are rarely used and less probably filtered.
2017-08-28 11:42:30 +03:00
ValdikSS
2fe377a23f
Do not handle traffic from private IP ranges
2017-08-15 14:09:47 +03:00
ValdikSS
b74c974235
Print error message if filter initialization fails
2017-08-15 14:09:06 +03:00
ValdikSS
96fb5f9516
Block passive DPI packets only with "Connection: close". Fixes #17 .
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Some servers set "don't fragment" flag and never increase TCP ID
field. If they send HTTP redirection to another website, it would
be blocked by the program.
This is a hack to block redirects only with "Connection: close"
header as presumably legal redirects are most likely would
use keep-alive.
2017-08-15 08:28:25 +03:00
ValdikSS
c1ca4f9804
Merge pull request #10 from beatcracker/patch-1
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Fixed typos
2017-07-10 20:01:56 +04:00
beatcracker
13261e1a92
Fixed typos
2017-07-10 18:44:56 +03:00
ValdikSS
4387e7c690
Merge pull request #7 from pash7ka/patch-2
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bugfix: wrong config file name
2017-06-14 12:23:33 +04:00
Pavel Rubin
08902b9a57
bugfix: wrong config file name
2017-06-14 02:13:39 +03:00
ValdikSS
f5ac7c0d67
Change TCP Window Size based on SrcPort, not DstPort.
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When HTTPS fragment size was set, the program always used it for HTTP, even
if HTTP fragmentation was disabled. This is due to a bug which checked DstPort,
not SrcPort, and the packets passed DstPort != htons(80) HTTPS check.
2017-06-11 21:50:22 +03:00
