[Cluster-devel] [PATCH 2/2] fence_amt: new fence agent for Intel AMT

[Ondrej Mular <omular@redhat.com>]

New fence agent for Intel AMT.

---
 fence/agents/amt/fence_amt.py | 161 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100755 fence/agents/amt/fence_amt.py

diff --git a/fence/agents/amt/fence_amt.py b/fence/agents/amt/fence_amt.py
new file mode 100755
index 0000000..6f00727
--- /dev/null
+++ b/fence/agents/amt/fence_amt.py
@@ -0,0 +1,161 @@
+#!/usr/bin/python
+
+import sys, subprocess, re, os, stat
+from pipes import quote
+sys.path.append("@FENCEAGENTSLIBDIR@")
+from fencing import *
+
+#BEGIN_VERSION_GENERATION
+RELEASE_VERSION="Fence agent for Intel AMT"
+REDHAT_COPYRIGHT=""
+BUILD_DATE=""
+#END_VERSION_GENERATION
+
+def get_power_status(_, options):
+
+    cmd = create_command(options, "status")
+
+    if options["log"] >= LOG_MODE_VERBOSE:
+        options["debug_fh"].write("executing: " + cmd + "\n")
+
+    try:
+        process = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
+    except OSError:
+        fail_usage("Amttool not found or not accessible")
+
+    process.wait()
+
+    output = process.communicate()
+    process.stdout.close()
+
+    match = re.search('Powerstate:[\\s]*(..)', str(output))
+    status = match.group(1) if match else None
+
+    if (status == None):
+        return "fail"
+    elif (status == "S0"): # SO = on; S3 = sleep; S5 = off
+        return "on"
+    else:
+        return "off"
+
+def set_power_status(_, options):
+
+    cmd = create_command(options, options["--action"])
+
+    if options["log"] >= LOG_MODE_VERBOSE:
+        options["debug_fh"].write("executing: " + cmd + "\n")
+
+    null = open('/dev/null', 'w')
+    try:
+        process = subprocess.Popen(cmd, stdout=null, stderr=null, shell=True)
+    except OSError:
+        null.close()
+        fail_usage("Amttool not found or not accessible")
+
+    process.wait()
+    null.close()
+
+    return
+
+def reboot_cycle(_, options):
+    cmd = create_command(options, "cycle")
+
+    if options["log"] >= LOG_MODE_VERBOSE:
+        options["debug_fh"].write("executing: " + cmd + "\n")
+
+    null = open('/dev/null', 'w')
+    try:
+        process = subprocess.Popen(cmd, stdout=null, stderr=null, shell=True)
+    except OSError:
+        null.close()
+        fail_usage("Amttool not found or not accessible")
+
+    status = process.wait()
+    null.close()
+
+    return not bool(status)
+
+def is_executable(path):
+    if os.path.exists(path):
+        stats = os.stat(path)
+        if stat.S_ISREG(stats.st_mode) and os.access(path, os.X_OK):
+            return True
+    return False
+
+def create_command(options, action):
+
+    # --password / -p
+    cmd = "AMT_PASSWORD=" + quote(options["--password"])
+
+    cmd += " " + options["--amttool-path"]
+
+    # --ip / -a
+    cmd += " " + options["--ip"]
+
+    # --action / -o
+    if action == "status":
+        cmd += " info"
+    elif action == "on":
+        cmd = "echo \"y\"|" + cmd
+        cmd += " powerup"
+    elif action == "off":
+        cmd = "echo \"y\"|" + cmd
+        cmd += " powerdown"
+    elif action == "cycle":
+        cmd = "echo \"y\"|" + cmd
+        cmd += " powercycle"
+    if action in ["on", "off", "cycle"] and options.has_key("--boot-option"):
+        cmd += options["--boot-option"]
+
+    # --use-sudo / -d
+    if options.has_key("--use-sudo"):
+        cmd = SUDO_PATH + " " + cmd
+
+    return cmd
+
+def define_new_opts():
+    all_opt["boot_option"] = {
+        "getopt" : "b:",
+        "longopt" : "boot-option",
+        "help" : "-b, --boot-option=[option]     Change the default boot behavior of the machine. (pxe|hd|hdsafe|cd|diag)",
+        "required" : "0",
+        "shortdesc" : "Change the default boot behavior of the machine.",
+        "choices" : ["pxe", "hd", "hdsafe", "cd", "diag"],
+        "order" : 1
+        }
+    all_opt["amttool_path"] = {
+        "getopt" : "i:",
+        "longopt" : "amttool-path",
+        "help" : "--amttool-path=[path]          Path to amttool binary",
+        "required" : "0",
+        "shortdesc" : "Path to amttool binary",
+        "default" : "@AMTTOOL_PATH@",
+        "order": 200
+        }
+
+def main():
+
+    atexit.register(atexit_handler)
+
+    device_opt = [ "ipaddr", "no_login", "passwd", "boot_option", "no_port",
+         "sudo", "amttool_path", "method" ]
+
+    define_new_opts()
+
+    options = check_input(device_opt, process_input(device_opt))
+
+    docs = { }
+    docs["shortdesc"] = "Fence agent for AMT"
+    docs["longdesc"] = "Fence agent for AMT"
+    docs["vendorurl"] = "http://www.intel.com/"
+    show_docs(options, docs)
+
+    if not is_executable(options["--amttool-path"]):
+        fail_usage("Amttool not found or not accessible")
+
+    result = fence_action(None, options, set_power_status, get_power_status, None, reboot_cycle)
+
+    sys.exit(result)
+
+if __name__ == "__main__":
+    main()
-- 
1.8.3.1