Log serial console output to files in the debug dir.
Also, add VM.serial_login() which attempts to log in via the serial console.
Note:
- Tests must NOT close() a serial console session, because it needs to remain
open for the following tests to use.
- Instead, tests must use session.sendline("exit") for serial console sessions:
session = vm.serial_login()
try:
...
finally:
session.sendline("exit")
- Only one serial console session per VM is available at a time.
Calling serial_login() twice for the same VM, without an "exit" between the
calls, will probably fail and/or do bad stuff.
Signed-off-by: Michael Goldish <mgoldish@xxxxxxxxxx>
---
client/tests/kvm/kvm_vm.py | 41 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 41 insertions(+), 0 deletions(-)
diff --git a/client/tests/kvm/kvm_vm.py b/client/tests/kvm/kvm_vm.py
index 5012d66..c8a282d 100755
--- a/client/tests/kvm/kvm_vm.py
+++ b/client/tests/kvm/kvm_vm.py
@@ -106,6 +106,7 @@ class VM:
@param address_cache: A dict that maps MAC addresses to IP addresses
"""
self.process = None
+ self.serial_console = None
self.redirs = {}
self.vnc_port = 5900
self.uuid = None
@@ -632,6 +633,15 @@ class VM:
return False
logging.debug("VM appears to be alive with PID %s", self.get_pid())
+
+ # Establish a session with the serial console -- requires a version
+ # of netcat that supports -U
+ self.serial_console = kvm_subprocess.kvm_shell_session(
+ "nc -U %s" % self.get_serial_console_filename(),
+ auto_close=False,
+ output_func=kvm_utils.log_line,
+ output_params=("serial-%s.log" % name,))
+
return True
finally:
@@ -705,6 +715,8 @@ class VM:
self.pci_assignable.release_devs()
if self.process:
self.process.close()
+ if self.serial_console:
+ self.serial_console.close()
for f in ([self.get_testlog_filename()] +
self.get_monitor_filenames()):
try:
@@ -973,6 +985,35 @@ class VM:
remote_path, local_path, timeout)
+ def serial_login(self, timeout=10):
+ """
+ Log into the guest via the serial console.
+ If timeout expires while waiting for output from the guest (e.g. a
+ password prompt or a shell prompt) -- fail.
+
+ @param timeout: Time (seconds) before giving up logging into the guest.
+ @return: kvm_spawn object on success and None on failure.
+ """
+ username = self.params.get("username", "")
+ password = self.params.get("password", "")
+ prompt = self.params.get("shell_prompt", "[\#\$]")
+ linesep = eval("'%s'" % self.params.get("shell_linesep", r"\n"))
+ status_test_command = self.params.get("status_test_command", "")
+
+ if self.serial_console:
+ self.serial_console.set_linesep(linesep)
+ self.serial_console.set_status_test_command(status_test_command)
+ else:
+ return None
+
+ # Make sure we get a login prompt
+ self.serial_console.sendline()
+
+ if kvm_utils._remote_login(self.serial_console, username, password,
+ prompt, timeout):
+ return self.serial_console
+
+
def send_key(self, keystr):
"""
Send a key event to the VM.
--
1.5.4.1
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