Rafal Wojtczuk
d40fb3a2e1
Fifo semantics is hard to get right.
...
Finally: we need to close the command pipe at EOF.
2011-03-16 16:11:05 +01:00
Rafal Wojtczuk
15bab70eae
Handle pipe io in qrexec_agent properly
...
Don't reopen pipe after each read - no need, and it could lose events.
2011-03-16 15:18:37 +01:00
Rafal Wojtczuk
769eedd33a
Make qrexec_client wait for its local child before exiting
...
If we do not wait and exit imemdiately, qrexec_daemon will decrease
the children count and continue spawning processes, while e.g.
qfile-daemon still waits for kdialog - so dom0 will be DoSed by
multiple processes.
2011-03-16 14:52:35 +01:00
Rafal Wojtczuk
27cfd6111a
qrexec_daemon limits the number of its children
...
So that evil VM cannot just send flood of exec qfile-daemon requests,
and DoS dom0.
2011-03-16 14:21:45 +01:00
Rafal Wojtczuk
00f4bf1197
qrexec_client accepts non-numeric domain description.
...
Just tries to open qrexec.argv[1].
2011-03-11 16:06:00 +01:00
Rafal Wojtczuk
470ddce435
qrexec_daemon creates VMname-based link to its socket
2011-03-11 14:14:04 +01:00
Rafal Wojtczuk
b9e0e93a90
In qrexec_client, check write_all(local_stdin_fd,..) value
2011-03-11 13:16:33 +01:00
Rafal Wojtczuk
1a5bfd8c2b
Reset SIGPIPE in qrexec_daemon, too.
2011-03-11 13:08:19 +01:00
Rafal Wojtczuk
e19390ca1c
Moved ioall.c file to "common"
2011-03-11 11:47:20 +01:00
Rafal Wojtczuk
f1a7df6e95
Implemented mechanism to trigger predefined execution in dom0.
...
Processes in AppVM can ask qrexec-agent to send a
MSG_AGENT_TO_SERVER_TRIGGER_EXEC message to qrexec-daemon.
The latter will execute predefined program. It is useful for
the purpose of file copy; the predefined program will create
a connected qfile-daemon<->qfile-agent pair.
2011-03-10 15:41:31 +01:00
Rafal Wojtczuk
8f90623661
Add ability to execute command without help of /bin/su
...
It is important, if the program closes stdout, but does not exit.
Then, qrexec_agent does not see EOF (because su still holds the
file descriptor).
2011-03-10 13:08:06 +01:00
Rafal Wojtczuk
f263aa6b7c
Moved vchan and u2mfn code to core.
2011-03-08 12:24:47 +01:00
Rafal Wojtczuk
27c8b05792
qrexec_daemon child should notify the parent.
2011-03-07 13:54:57 +01:00
Rafal Wojtczuk
50252ec64e
qrexec_daemon parent should exit after connection to VM.
2011-03-07 13:50:30 +01:00
Rafal Wojtczuk
bb0507c89a
Make qrexec_daemon socket accessible.
...
Set restructive umask after socket creation.
2011-03-04 17:41:54 +01:00
Rafal Wojtczuk
b899bfc9ba
Daemonize qrexec_daemon.
2011-03-04 17:38:59 +01:00
Rafal Wojtczuk
b98dffc965
qrexec* tools, initial version
2011-03-04 16:32:58 +01:00
