Opened 15 years ago
Closed 10 years ago
#22689 closed defect (fixed)
openvpn2-2.0.9 Compiling for x86_64 leads to wrong behaviour
| Reported by: | wickedguitar6@… | Owned by: | jul_bsd@… |
|---|---|---|---|
| Priority: | Normal | Milestone: | |
| Component: | ports | Version: | 1.8.1 |
| Keywords: | LP64 | Cc: | erik@…, cruoho@…, ewen-naos-nz (Ewen McNeill) |
| Port: | openvpn2 |
Description
There is a bug which leads to wrong detection of the default_gateway (0.0.0.0) when the three following conditions apply: 1) openvpn2-2.0.9 is compiled with gcc-4.2 (the default on Mac OS X 10.6) 2) It is used as a client 3) 'push "redirect-gateway def1"' is used on the server side (e.g. a linux-box)
When the openvpn-2.0.9 is compiled with gcc-4.0 the bug does not occur. Default_gateway is detected correctly. However the gcc-4.0 compiler is not aware of the lzo2 library and openvpn must be configured with "--disable-lzo".
Change History (12)
comment:1 Changed 15 years ago by jmroot (Joshua Root)
| Cc: | wickedguitar6@… pmq@… removed |
|---|---|
| Keywords: | openvpn2 default_gateway gcc-4.0 removed |
| Owner: | changed from macports-tickets@… to pmq@… |
comment:2 Changed 15 years ago by wickedguitar6@…
comment:4 Changed 15 years ago by jmroot (Joshua Root)
| Keywords: | LP64 added |
|---|---|
| Summary: | openvpn2-2.0.9 Compiling with gcc-4.2 leads to wrong behaviour → openvpn2-2.0.9 Compiling for x86_64 leads to wrong behaviour |
comment:5 Changed 14 years ago by jmroot (Joshua Root)
| Cc: | jordiyeh@… removed |
|---|
Is this still a problem with 2.1.1?
comment:8 Changed 13 years ago by pmq@…
| Owner: | changed from pmq@… to macports-tickets@… |
|---|
Stepping down for maintainership as I'm not using this anymore.
comment:9 Changed 13 years ago by ewen-naos-nz (Ewen McNeill)
From what I can tell this is the OpenVPN bug for the same issue:
https://community.openvpn.net/openvpn/ticket/42
It seems to still exist as a bug in 2.2.1, despite being known about as a bug for a couple of years. A somewhat related proposed OpenVPN patch from years back:
http://openvpn.net/archive/openvpn-devel/2006-07/msg00003.html
suggests the relevant bit of code that will need work, viz route.c get_default_gateway(). At a guess there's some sort of word size related issue, since apparently 32-bit x86 works and 64-bit x86-64 doesn't.
Ewen
comment:11 Changed 10 years ago by jmroot (Joshua Root)
| Owner: | changed from macports-tickets@… to jul_bsd@… |
|---|
comment:12 Changed 10 years ago by jmroot (Joshua Root)
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Upstream ticket says this should be fixed as of 2.3 at least (if not earlier). Please reopen if this is not the case.
The problem seems to be irrelevant to the version of the gcc compiler used. However, it is relevant to whether the executable is compiled for "i386" or "x86_64" architecture. By default gcc-4.2 produces x86_64 executables and the gcc-4.0 i386 ones. When compiled as x86_64 executable it is unable to find the default_gateway on the system.