proxsmtp - Proxy for smtp connections filter via script

Age	Commit message (Collapse)	Author
2011-10-21	Add upload-release make target, and start signing releases	Stef Walter

2011-10-21	Release version 1.101.10	Stef Walter

2011-10-21	proxsmtpd: [PATCH] Close extra file descriptors for filter command	Keith Owens
	Short form: Passing extra file descriptors to the filter command can prevent it from detecting EOF or EPIPE. Result, dead filter commands that never terminate. Close everything except fd 0, 1, 2 before running the filter command. Long form: At the point that the filter command is forked and executed, proxsmtd may have multiple children with multiple pipes open. fork() bumps the reference count on all the file descriptors that are open at that moment. When the parent closes its part of the pipe, the pipe fd may or may not be removed from the system, depending on how many children have accidentally inherited that pipe. The child code closes fd 0, 1 and 2, calls dup2() to map the pipes to 0, 1 and 2 then runs. If another child has accidentally bumped the reference count on the pipes to this child then fd 0 can have multiple writers. This prevents the filter from detecting EOF or EPIPE when proxsmtpd closes the pipe to this particular child. This bug is particularly evident if the filter program does another fork and uses more pipes to communicate with its own child. awk does this as a matter of course. The result is a dangling filter command just sitting there waiting for input and not detecting that stdin has been closed. The dangling commands are owned by pid 1 rather than proxsmtpd. The only way to get rid of them is to manually kill them.
2011-09-16	Test build.	Stef Walter

2011-09-16	workaround for race between waitpid(-1) and waitpid(pid)	Keith Owens
	Sometimes waitpid(-1) in cb_check_data reaps a child that has just terminated, before waitpid(pid) in wait_process can reap it. Linux waitpid(pid,,WNOHANG) may not return an error if the child has already terminated, which results in wait_process looping waiting for the child which has already terminated. The symptom is a spurious "timeout waiting for filter command to exit".
2011-01-23	Release version 1.9	Stef Walter

2011-01-23	Better message when skipping processing.	Stef Walter

2011-01-23	Parse MAIL FROM and RCPT TO properly, and skip authenticated.	Stef Walter

2011-01-23	Reject early before recipient server gets the envelope.	Stef Walter

2011-01-23	Add client IP address to log line.	Stef Walter

2011-01-23	Don't force connections to come from same source port.	Stef Walter
	Also allow address reuse for connections in time wait state.
2011-01-23	Bump up the limit of top number of max connections.	Stef Walter
	Used to be 1024, now is 10240
2011-01-23	Fix TransparentProxy option to better reflect different types of proxy.	Stef Walter

2011-01-23	Add a default reject message	Stef Walter

2011-01-23	Fix compiler warnings.	Stef Walter

2011-01-23	Refactor how data skip is done.	Stef Walter

2011-01-23	Send the proper data end signature to server.	Stef Walter

2011-01-23	Add status to logs for rejection and skipping	Stef Walter

2011-01-23	Allow skipping processing data for unauthenticated connections.	Stef Walter

2011-01-23	Track client authentication correctly.	Stef Walter

2011-01-23	Implement reject filter for messages.	Stef Walter

2011-01-23	Enable IP_TRANSPARENT on the main socket as well.	Stef Walter

2011-01-23	Fix the build on ubuntu 10.4	Stef Walter

2011-01-23	Fix problems with the build of IP_TRANSPARENT support.	Stef Walter

2011-01-23	Ignore tarballs	Stef Walter

2011-01-23	Fix spelling mistakes in configure output.	Stef Walter

2011-01-23	Proper build and configure support for transparent proxy	Stef Walter

2011-01-23	Transparent proxying without running as root.	Stef Walter
	Using linux capabilitiy CAP_NET_ADMIN
2011-01-23	Initial implementation of true transparent proxying on linux.	Stef Walter

2011-01-23	Fix problem on linux not detecting netfilter header.	Stef Walter

2011-01-23	Fix compiler warnings on 64-bit.	Stef Walter

2011-01-23	Reorganize to better match git.	Stef Walter

2008-06-30	1.8 release	Stef Walter

2008-05-27	- Make the XFOWARD HELO available as a environment variable in scripts. ↵	Stef Walter
	[Glenn Matthys]
2007-10-26	Fix uninitialized pid variable.	Stef Walter

2007-06-21	Send an RSET to the server after filter fails some data.	Stef Walter

2007-05-28	Use 'Stef' instead of 'Nate'	Stef Walter

2007-03-20	- Resolve any DNS name for each connection.	Stef Walter

2007-03-20	Fix version string.	Stef Walter

2006-11-14	Version 1.6	Stef Walter

2006-11-14	Add header option back into proxsmtp	Stef Walter

2006-10-12	Ignore built files	Stef Walter

2006-10-12	Add strcasestr which is missing on solaris.	Stef Walter

2006-10-12	Move last commit properly into 1.6 pre-release.	Stef Walter

2006-09-27	- On FreeBSD fix problem where stderr wasn't processed when filter	Stef Walter
	didn't read stdin.
2006-09-27	Commit release version increment.	Stef Walter

2006-08-30	Bring in some changes from ClamSMTP	Stef Walter

2006-08-30	- Added support for setting the REMOTE variable when an XFORWARD	Stef Walter
	command is seen.
2006-07-13	* Add support for passing emails	Stef Walter
	* Bring in some changes from proxsmtp
2006-07-13	Better message for 'busy'	Stef Walter