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migration: setup bi-directional I/O channel for exec: protocol 

Historically the migration data channel has only needed to be
unidirectional. Thus the 'exec:' protocol was requesting an
I/O channel with O_RDONLY on incoming side, and O_WRONLY on
the outgoing side.

This is fine for classic migration, but if you then try to run
TLS over it, this fails because the TLS handshake requires a
bi-directional channel.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Daniel P. Berrange 2017-04-21 12:12:20 +01:00 committed by Juan Quintela
parent 6b6712efcc
commit 062d81f0e9
1 changed files with 2 additions and 2 deletions
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4
migration/exec.c
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@ -32,7 +32,7 @@ void exec_start_outgoing_migration(MigrationState *s, const char *command, Error
trace_migration_exec_outgoing(command);
ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv,
O_WRONLY,
O_RDWR,
errp));
if (!ioc) {
return;
@ -59,7 +59,7 @@ void exec_start_incoming_migration(const char *command, Error **errp)
trace_migration_exec_incoming(command);
ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv,
O_RDONLY,
O_RDWR,
errp));
if (!ioc) {
return;