[OE-core] [PATCH 3/4 v2] oeqa/qemu: Add support for slirp

[Yeoh Ee Peng]

Enable qemu for slirp. Initialize Qemurunner with slirp. Setup ip
and port attribute to enable connection with qemu running with slirp.

[YOCTO#10713]

Signed-off-by: Yeoh Ee Peng <ee.peng.yeoh at intel.com>
---
 meta/lib/oeqa/core/target/qemu.py | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/meta/lib/oeqa/core/target/qemu.py b/meta/lib/oeqa/core/target/qemu.py
index 538bf12..f47fd74 100644
--- a/meta/lib/oeqa/core/target/qemu.py
+++ b/meta/lib/oeqa/core/target/qemu.py
@@ -13,7 +13,7 @@ supported_fstypes = ['ext3', 'ext4', 'cpio.gz', 'wic']
 
 class OEQemuTarget(OESSHTarget):
     def __init__(self, logger, server_ip, timeout=300, user='root',
-            port=None, machine='', rootfs='', kernel='', kvm=False,
+            port=None, machine='', rootfs='', kernel='', kvm=False, slirp=False,
             dump_dir='', dump_host_cmds='', display='', bootlog='',
             tmpdir='', dir_image='', boottime=60, **kwargs):
 
@@ -25,17 +25,33 @@ class OEQemuTarget(OESSHTarget):
         self.rootfs = rootfs
         self.kernel = kernel
         self.kvm = kvm
+        self.use_slirp = slirp
 
         self.runner = QemuRunner(machine=machine, rootfs=rootfs, tmpdir=tmpdir,
                                  deploy_dir_image=dir_image, display=display,
                                  logfile=bootlog, boottime=boottime,
-                                 use_kvm=kvm, dump_dir=dump_dir,
+                                 use_kvm=kvm, use_slirp=slirp, dump_dir=dump_dir,
                                  dump_host_cmds=dump_host_cmds, logger=logger)
 
     def start(self, params=None, extra_bootparams=None):
+        if self.use_slirp and not self.server_ip:
+            self.logger.error("Could not start qemu with slirp without server ip - provide 'TEST_SERVER_IP'")
+            raise RuntimeError("FAILED to start qemu - check the task log and the boot log")
         if self.runner.start(params, extra_bootparams=extra_bootparams):
             self.ip = self.runner.ip
-            self.server_ip = self.runner.server_ip
+            if self.use_slirp:
+                target_ip_port = self.runner.ip.split(':')
+                if len(target_ip_port) == 2:
+                    target_ip = target_ip_port[0]
+                    port = target_ip_port[1]
+                    self.ip = target_ip
+                    self.ssh = self.ssh + ['-p', port]
+                    self.scp = self.scp + ['-P', port]
+                else:
+                    self.logger.error("Could not get host machine port to connect qemu with slirp, ssh will not be "
+                                      "able to connect to qemu with slirp")
+            if self.runner.server_ip:
+                self.server_ip = self.runner.server_ip
         else:
             self.stop()
             raise RuntimeError("FAILED to start qemu - check the task log and the boot log")
-- 
2.7.4