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diff --git a/cts/cts-fencing.in b/cts/cts-fencing.in
index 83ba0fa3be..b0407614f1 100644
--- a/cts/cts-fencing.in
+++ b/cts/cts-fencing.in
@@ -1,1114 +1,1114 @@
#!@PYTHON@
""" Regression tests for Pacemaker's fencer
"""
__copyright__ = "Copyright 2012-2023 the Pacemaker project contributors"
__license__ = "GNU General Public License version 2 or later (GPLv2+) WITHOUT ANY WARRANTY"
import argparse
import os
import sys
import subprocess
import tempfile
# These imports allow running from a source checkout after running `make`.
# Note that while this doesn't necessarily mean it will successfully run tests,
# but being able to see --help output can be useful.
if os.path.exists("@abs_top_srcdir@/python"):
sys.path.insert(0, "@abs_top_srcdir@/python")
if os.path.exists("@abs_top_builddir@/python") and "@abs_top_builddir@" != "@abs_top_srcdir@":
sys.path.insert(0, "@abs_top_builddir@/python")
from pacemaker.buildoptions import BuildOptions
from pacemaker.exitstatus import ExitStatus
from pacemaker._cts.corosync import Corosync, localname
from pacemaker._cts.errors import ExitCodeError, OutputFoundError, OutputNotFoundError, XmlValidationError
from pacemaker._cts.process import killall, exit_if_proc_running
from pacemaker._cts.test import Test, Tests
TEST_DIR = sys.path[0]
def update_path():
""" Set the PATH environment variable appropriately for the tests """
new_path = os.environ['PATH']
if os.path.exists("%s/cts-fencing.in" % TEST_DIR):
print("Running tests from the source tree: %s (%s)" % (BuildOptions._BUILD_DIR, TEST_DIR))
# For pacemaker-fenced and cts-fence-helper
new_path = "%s/daemons/fenced:%s" % (BuildOptions._BUILD_DIR, new_path)
new_path = "%s/tools:%s" % (BuildOptions._BUILD_DIR, new_path) # For stonith_admin
new_path = "%s/cts/support:%s" % (BuildOptions._BUILD_DIR, new_path) # For cts-support
else:
print("Running tests from the install tree: %s (not %s)" % (BuildOptions.DAEMON_DIR, TEST_DIR))
# For pacemaker-fenced, cts-fence-helper, and cts-support
new_path = "%s:%s" % (BuildOptions.DAEMON_DIR, new_path)
print('Using PATH="%s"' % new_path)
os.environ['PATH'] = new_path
class FenceTest(Test):
""" Executor for a single test """
def __init__(self, name, description, **kwargs):
Test.__init__(self, name, description, **kwargs)
if kwargs.get("with_cpg", False):
self._enable_corosync = True
self._daemon_options = ["-c"]
else:
self._enable_corosync = False
self._daemon_options = ["-s"]
self._daemon_location = "pacemaker-fenced"
def _kill_daemons(self):
killall(["pacemakerd", "pacemaker-fenced"])
def _start_daemons(self):
if self.verbose:
self._daemon_options += ["-V"]
print("Starting %s with %s" % (self._daemon_location, self._daemon_options))
cmd = ["pacemaker-fenced", "-l", self.logpath] + self._daemon_options
self._daemon_process = subprocess.Popen(cmd)
class FenceTests(Tests):
""" Collection of all fencing regression tests """
def __init__(self, **kwargs):
Tests.__init__(self, **kwargs)
self._corosync = Corosync(self.verbose, self.logdir, "cts-fencing")
def new_test(self, name, description, with_cpg=False):
""" Create a named test """
test = FenceTest(name, description, verbose=self.verbose, with_cpg=with_cpg,
timeout=self.timeout, force_wait=self.force_wait,
logdir=self.logdir)
self._tests.append(test)
return test
def run_cpg_only(self):
""" Run all corosync-enabled tests """
for test in self._tests:
if test._enable_corosync:
test.run()
def run_no_cpg(self):
""" Run all standalone tests """
for test in self._tests:
if not test._enable_corosync:
test.run()
def build_api_sanity_tests(self):
""" Register tests to verify basic API usage """
verbose_arg = ""
if self.verbose:
verbose_arg = "-V"
test = self.new_test("standalone_low_level_api_test", "Sanity test client api in standalone mode.")
test.add_cmd("cts-fence-helper", "-t %s" % (verbose_arg), validate=False)
test = self.new_test("cpg_low_level_api_test", "Sanity test client api using mainloop and cpg.", True)
test.add_cmd("cts-fence-helper", "-m %s" % (verbose_arg), validate=False)
def build_custom_timeout_tests(self):
""" Register tests to verify custom timeout usage """
# custom timeout without topology
test = self.new_test("cpg_custom_timeout_1",
"Verify per device timeouts work as expected without using topology.", True)
test.add_cmd('stonith_admin',
'--output-as=xml -R false1 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=node1 node2 node3"')
test.add_cmd('stonith_admin',
'--output-as=xml -R true1 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node3" -o "pcmk_off_timeout=1"')
test.add_cmd('stonith_admin',
'--output-as=xml -R false2 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=node3" -o "pcmk_off_timeout=4"')
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 5")
# timeout is 5+1+4 = 10
test.add_log_pattern("Total timeout set to 12")
# custom timeout _WITH_ topology
test = self.new_test("cpg_custom_timeout_2",
"Verify per device timeouts work as expected _WITH_ topology.", True)
test.add_cmd('stonith_admin',
'--output-as=xml -R false1 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=node1 node2 node3"')
test.add_cmd('stonith_admin',
'--output-as=xml -R true1 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node3" -o "pcmk_off_timeout=1"')
test.add_cmd('stonith_admin',
'--output-as=xml -R false2 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=node3" -o "pcmk_off_timeout=4000"')
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v true1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 3 -v false2")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 5")
# timeout is 5+1+4000 = 4006
test.add_log_pattern("Total timeout set to 4807")
def build_fence_merge_tests(self):
""" Register tests to verify when fence operations should be merged """
### Simple test that overlapping fencing operations get merged
test = self.new_test("cpg_custom_merge_single",
"Verify overlapping identical fencing operations are merged, no fencing levels used.", True)
test.add_cmd("stonith_admin", "--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node3\" ")
test.add_cmd("stonith_admin", "--output-as=xml -R false2 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node3\"")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 10")
### one merger will happen
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client")
### the pattern below signifies that both the original and duplicate operation completed
test.add_log_pattern("Operation 'off' targeting node3 by ")
test.add_log_pattern("Operation 'off' targeting node3 by ")
### Test that multiple mergers occur
test = self.new_test("cpg_custom_merge_multiple",
"Verify multiple overlapping identical fencing operations are merged", True)
test.add_cmd("stonith_admin", "--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"delay=2\" -o \"pcmk_host_list=node3\" ")
test.add_cmd("stonith_admin", "--output-as=xml -R false2 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node3\"")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 10")
### 4 mergers should occur
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client")
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client")
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client")
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client")
### the pattern below signifies that both the original and duplicate operation completed
test.add_log_pattern("Operation 'off' targeting node3 by ")
test.add_log_pattern("Operation 'off' targeting node3 by ")
test.add_log_pattern("Operation 'off' targeting node3 by ")
test.add_log_pattern("Operation 'off' targeting node3 by ")
test.add_log_pattern("Operation 'off' targeting node3 by ")
### Test that multiple mergers occur with topologies used
test = self.new_test("cpg_custom_merge_with_topology",
"Verify multiple overlapping identical fencing operations are merged with fencing levels.",
True)
test.add_cmd("stonith_admin", "--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node3\" ")
test.add_cmd("stonith_admin", "--output-as=xml -R false2 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false2")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v true1")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 10")
### 4 mergers should occur
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client")
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client")
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client")
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client")
### the pattern below signifies that both the original and duplicate operation completed
test.add_log_pattern("Operation 'off' targeting node3 by ")
test.add_log_pattern("Operation 'off' targeting node3 by ")
test.add_log_pattern("Operation 'off' targeting node3 by ")
test.add_log_pattern("Operation 'off' targeting node3 by ")
test.add_log_pattern("Operation 'off' targeting node3 by ")
def build_fence_no_merge_tests(self):
""" Register tests to verify when fence operations should not be merged """
test = self.new_test("cpg_custom_no_merge",
"Verify differing fencing operations are not merged", True)
test.add_cmd("stonith_admin", "--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node3 node2\"")
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node3 node2\" ")
test.add_cmd("stonith_admin", "--output-as=xml -R false2 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node3 node2\"")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false2")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v true1")
test.add_cmd_no_wait("stonith_admin", "--output-as=xml -F node2 -t 10")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 10")
test.add_log_pattern("Merging fencing action 'off' targeting node3 originating from client",
negative=True)
def build_standalone_tests(self):
""" Register a grab bag of tests that can be executed in standalone or corosync mode """
test_types = [
{
"prefix" : "standalone",
"use_cpg" : False,
},
{
"prefix" : "cpg",
"use_cpg" : True,
},
]
# test what happens when all devices timeout
for test_type in test_types:
test = self.new_test("%s_fence_multi_device_failure" % test_type["prefix"],
"Verify that all devices timeout, a fencing failure is returned.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R false2 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R false3 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
if test_type["use_cpg"]:
test.add_cmd_expected_fail("stonith_admin", "--output-as=xml -F node3 -t 2", ExitStatus.TIMEOUT)
test.add_log_pattern("Total timeout set to 7")
else:
test.add_cmd_expected_fail("stonith_admin", "--output-as=xml -F node3 -t 2", ExitStatus.ERROR)
test.add_log_pattern("targeting node3 using false1 returned ")
test.add_log_pattern("targeting node3 using false2 returned ")
test.add_log_pattern("targeting node3 using false3 returned ")
# test what happens when multiple devices can fence a node, but the first device fails.
for test_type in test_types:
test = self.new_test("%s_fence_device_failure_rollover" % test_type["prefix"],
"Verify that when one fence device fails for a node, the others are tried.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R false2 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 5")
if test_type["use_cpg"]:
test.add_log_pattern("Total timeout set to 18")
# test what happens when we try to use a missing fence-agent.
for test_type in test_types:
test = self.new_test("%s_fence_missing_agent" % test_type["prefix"],
"Verify proper error-handling when using a non-existent fence-agent.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_missing -o \"mode=pass\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true2 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node2\"")
test.add_cmd_expected_fail("stonith_admin",
"--output-as=xml -F node3 -t 5",
ExitStatus.NOSUCH)
test.add_cmd("stonith_admin", "--output-as=xml -F node2 -t 5")
# simple topology test for one device
for test_type in test_types:
if not test_type["use_cpg"]:
continue
test = self.new_test("%s_topology_simple" % test_type["prefix"],
"Verify all fencing devices at a level are used.", test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v true")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 5")
test.add_log_pattern("Total timeout set to 6")
test.add_log_pattern("targeting node3 using true returned 0")
# add topology, delete topology, verify fencing still works
for test_type in test_types:
if not test_type["use_cpg"]:
continue
test = self.new_test("%s_topology_add_remove" % test_type["prefix"],
"Verify fencing occurrs after all topology levels are removed",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v true")
test.add_cmd("stonith_admin", "--output-as=xml -d node3 -i 1")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 5")
test.add_log_pattern("Total timeout set to 6")
test.add_log_pattern("targeting node3 using true returned 0")
# test what happens when the first fencing level has multiple devices.
for test_type in test_types:
if not test_type["use_cpg"]:
continue
test = self.new_test("%s_topology_device_fails" % test_type["prefix"],
"Verify if one device in a level fails, the other is tried.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R false -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v true")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 20")
test.add_log_pattern("Total timeout set to 48")
test.add_log_pattern("targeting node3 using false returned 1")
test.add_log_pattern("targeting node3 using true returned 0")
# test what happens when the first fencing level fails.
for test_type in test_types:
if not test_type["use_cpg"]:
continue
test = self.new_test("%s_topology_multi_level_fails" % test_type["prefix"],
"Verify if one level fails, the next leve is tried.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true2 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true3 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true4 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R false2 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v true1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v true2")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v false2")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 3 -v true3")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 3 -v true4")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 3")
test.add_log_pattern("Total timeout set to 21")
test.add_log_pattern("targeting node3 using false1 returned 1")
test.add_log_pattern("targeting node3 using false2 returned 1")
test.add_log_pattern("targeting node3 using true3 returned 0")
test.add_log_pattern("targeting node3 using true4 returned 0")
# test what happens when the first fencing level had devices that no one has registered
for test_type in test_types:
if not test_type["use_cpg"]:
continue
test = self.new_test("%s_topology_missing_devices" % test_type["prefix"],
"Verify topology can continue with missing devices.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true2 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true3 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true4 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R false2 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v true1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v true2")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v false2")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 3 -v true3")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 3 -v true4")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 5")
# Test what happens if multiple fencing levels are defined, and then the first one is removed.
for test_type in test_types:
if not test_type["use_cpg"]:
continue
test = self.new_test("%s_topology_level_removal" % test_type["prefix"],
"Verify level removal works.", test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true2 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true3 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true4 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R false2 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v true1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v true2")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v false2")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 3 -v true3")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 3 -v true4")
# Now remove level 2, verify none of the devices in level two are hit.
test.add_cmd("stonith_admin", "--output-as=xml -d node3 -i 2")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 20")
test.add_log_pattern("Total timeout set to 96")
test.add_log_pattern("targeting node3 using false1 returned 1")
test.add_log_pattern("targeting node3 using false2 returned ",
negative=True)
test.add_log_pattern("targeting node3 using true3 returned 0")
test.add_log_pattern("targeting node3 using true4 returned 0")
# Test targeting a topology level by node name pattern.
for test_type in test_types:
if not test_type["use_cpg"]:
continue
test = self.new_test("%s_topology_level_pattern" % test_type["prefix"],
"Verify targeting topology by node name pattern works.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"""--output-as=xml -R true -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node1 node2 node3" """)
test.add_cmd("stonith_admin", """--output-as=xml -r '@node.*' -i 1 -v true""")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 5")
test.add_log_pattern("targeting node3 using true returned 0")
# test allowing commas and semicolons as delimiters in pcmk_host_list
for test_type in test_types:
test = self.new_test("%s_host_list_delimiters" % test_type["prefix"],
"Verify commas and semicolons can be used as pcmk_host_list delimiters",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"""--output-as=xml -R true1 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node1,node2,node3" """)
test.add_cmd("stonith_admin",
"""--output-as=xml -R true2 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=pcmk1;pcmk2;pcmk3" """)
test.add_cmd("stonith_admin", "stonith_admin --output-as=xml -F node2 -t 5")
test.add_cmd("stonith_admin", "stonith_admin --output-as=xml -F pcmk3 -t 5")
test.add_log_pattern("targeting node2 using true1 returned 0")
test.add_log_pattern("targeting pcmk3 using true2 returned 0")
# test the stonith builds the correct list of devices that can fence a node.
for test_type in test_types:
test = self.new_test("%s_list_devices" % test_type["prefix"],
"Verify list of devices that can fence a node is correct",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true2 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true3 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd_check_stdout("stonith_admin", "--output-as=xml -l node1 -V", "true2", "true1")
test.add_cmd_check_stdout("stonith_admin", "--output-as=xml -l node1 -V", "true3", "true1")
# simple test of device monitor
for test_type in test_types:
test = self.new_test("%s_monitor" % test_type["prefix"],
"Verify device is reachable", test_type["use_cpg"])
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -Q true1")
test.add_cmd("stonith_admin", "--output-as=xml -Q false1")
test.add_cmd_expected_fail("stonith_admin",
"--output-as=xml -Q true2",
ExitStatus.NOSUCH)
# Verify monitor occurs for duration of timeout period on failure
for test_type in test_types:
test = self.new_test("%s_monitor_timeout" % test_type["prefix"],
"Verify monitor uses duration of timeout period given.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
'--output-as=xml -R true1 -a fence_dummy -o "mode=fail" -o "monitor_mode=fail" -o "pcmk_host_list=node3"')
test.add_cmd_expected_fail("stonith_admin", "--output-as=xml -Q true1 -t 5", ExitStatus.ERROR)
test.add_log_pattern("Attempt 2 to execute")
# Verify monitor occurs for duration of timeout period on failure, but stops at max retries
for test_type in test_types:
test = self.new_test("%s_monitor_timeout_max_retries" % test_type["prefix"],
"Verify monitor retries until max retry value or timeout is hit.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
'--output-as=xml -R true1 -a fence_dummy -o "mode=fail" -o "monitor_mode=fail" -o "pcmk_host_list=node3"')
test.add_cmd_expected_fail("stonith_admin", "--output-as=xml -Q true1 -t 15", ExitStatus.ERROR)
test.add_log_pattern("Attempted to execute agent fence_dummy (list) the maximum number of times")
# simple register test
for test_type in test_types:
test = self.new_test("%s_register" % test_type["prefix"],
"Verify devices can be registered and un-registered",
test_type["use_cpg"])
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -Q true1")
test.add_cmd("stonith_admin", "--output-as=xml -D true1")
test.add_cmd_expected_fail("stonith_admin",
"--output-as=xml -Q true1",
ExitStatus.NOSUCH)
# simple reboot test
for test_type in test_types:
test = self.new_test("%s_reboot" % test_type["prefix"],
"Verify devices can be rebooted",
test_type["use_cpg"])
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -B node3 -t 5")
test.add_cmd("stonith_admin", "--output-as=xml -D true1")
test.add_cmd_expected_fail("stonith_admin",
"--output-as=xml -Q true1",
ExitStatus.NOSUCH)
# test fencing history.
for test_type in test_types:
if not test_type["use_cpg"]:
continue
test = self.new_test("%s_fence_history" % test_type["prefix"],
"Verify last fencing operation is returned.",
test_type["use_cpg"])
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 -t 5 -V")
test.add_cmd_check_stdout("stonith_admin", "--output-as=xml -H node3", 'action="off" target="node3" .* status="success"')
# simple test of dynamic list query
for test_type in test_types:
test = self.new_test("%s_dynamic_list_query" % test_type["prefix"],
"Verify dynamic list of fencing devices can be retrieved.",
test_type["use_cpg"])
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o mode=pass -o mock_dynamic_hosts=fake_port_1")
test.add_cmd("stonith_admin", "--output-as=xml -R true2 -a fence_dummy -o mode=pass -o mock_dynamic_hosts=fake_port_1")
test.add_cmd("stonith_admin", "--output-as=xml -R true3 -a fence_dummy -o mode=pass -o mock_dynamic_hosts=fake_port_1")
test.add_cmd_check_stdout("stonith_admin", "--output-as=xml -l fake_port_1", 'count="3"')
# fence using dynamic list query
for test_type in test_types:
test = self.new_test("%s_fence_dynamic_list_query" % test_type["prefix"],
"Verify dynamic list of fencing devices can be retrieved.",
test_type["use_cpg"])
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o mode=pass -o mock_dynamic_hosts=fake_port_1")
test.add_cmd("stonith_admin", "--output-as=xml -R true2 -a fence_dummy -o mode=pass -o mock_dynamic_hosts=fake_port_1")
test.add_cmd("stonith_admin", "--output-as=xml -R true3 -a fence_dummy -o mode=pass -o mock_dynamic_hosts=fake_port_1")
test.add_cmd("stonith_admin", "--output-as=xml -F fake_port_1 -t 5 -V")
# simple test of query using status action
for test_type in test_types:
test = self.new_test("%s_status_query" % test_type["prefix"],
"Verify dynamic list of fencing devices can be retrieved.",
test_type["use_cpg"])
test.add_cmd("stonith_admin", "--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_check=status\"")
test.add_cmd("stonith_admin", "--output-as=xml -R true2 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_check=status\"")
test.add_cmd("stonith_admin", "--output-as=xml -R true3 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_check=status\"")
test.add_cmd_check_stdout("stonith_admin", "--output-as=xml -l fake_port_1", 'count="3"')
# test what happens when no reboot action is advertised
for test_type in test_types:
test = self.new_test("%s_no_reboot_support" % test_type["prefix"],
"Verify reboot action defaults to off when no reboot action is advertised by agent.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy_no_reboot -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -B node1 -t 5 -V")
test.add_log_pattern("does not support reboot")
test.add_log_pattern("using true1 returned 0")
# make sure reboot is used when reboot action is advertised
for test_type in test_types:
test = self.new_test("%s_with_reboot_support" % test_type["prefix"],
"Verify reboot action can be used when metadata advertises it.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -B node1 -t 5 -V")
test.add_log_pattern("does not advertise support for 'reboot', performing 'off'",
negative=True)
test.add_log_pattern("using true1 returned 0")
# make sure all fencing delays are applied correctly and taken into account by fencing timeouts with topology
for test_type in test_types:
if not test_type["use_cpg"]:
continue
test = self.new_test("%s_topology_delays" % test_type["prefix"],
"Verify all fencing delays are applied correctly and taken into account by fencing timeouts with topology.",
test_type["use_cpg"])
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\" -o \"pcmk_delay_base=1\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R false1 -a fence_dummy -o \"mode=fail\" -o \"pcmk_host_list=node1 node2 node3\" -o \"pcmk_delay_base=1\"")
# Resulting "random" delay will always be 1 since (rand() % (delay_max - delay_base)) is always 0 here.
test.add_cmd("stonith_admin",
"--output-as=xml -R true2 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\" -o \"pcmk_delay_base=1\" -o \"pcmk_delay_max=2\"")
test.add_cmd("stonith_admin",
"--output-as=xml -R true3 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=node1 node2 node3\"")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v true1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 1 -v false1")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v true2")
test.add_cmd("stonith_admin", "--output-as=xml -r node3 -i 2 -v true3")
test.add_cmd("stonith_admin", "--output-as=xml -F node3 --delay 1")
# Total fencing timeout takes all fencing delays into account.
- test.add_log_pattern("Total timeout set to 577")
+ test.add_log_pattern("Total timeout set to 579")
# Fencing timeout for the first device takes the requested fencing delay into account.
# Fencing timeout also takes pcmk_delay_base into account.
test.add_log_pattern(r"Requesting that .* perform 'off' action targeting node3 using true1 .*145s.*",
regex=True)
# Requested fencing delay is applied only for the first device in the first level.
# Static delay from pcmk_delay_base is added.
test.add_log_pattern("Delaying 'off' action targeting node3 using true1 for 2s | timeout=120s requested_delay=1s base=1s max=1s")
# Fencing timeout no longer takes the requested fencing delay into account for further devices.
test.add_log_pattern(r"Requesting that .* perform 'off' action targeting node3 using false1 .*144s.*",
regex=True)
# Requested fencing delay is no longer applied for further devices.
test.add_log_pattern("Delaying 'off' action targeting node3 using false1 for 1s | timeout=120s requested_delay=0s base=1s max=1s")
# Fencing timeout takes pcmk_delay_max into account.
- test.add_log_pattern(r"Requesting that .* perform 'off' action targeting node3 using true2 .*144s.*",
+ test.add_log_pattern(r"Requesting that .* perform 'off' action targeting node3 using true2 .*146s.*",
regex=True)
- test.add_log_pattern("Delaying 'off' action targeting node3 using true2 for 1s | timeout=120s requested_delay=0s base=1s max=2s")
+ test.add_log_pattern("Delaying 'off' action targeting node3 using true2 for 1s | timeout=122s requested_delay=0s base=1s max=2s")
test.add_log_pattern("Delaying 'off' action targeting node3 using true3",
negative=True)
def build_nodeid_tests(self):
""" Register tests that use a corosync node id """
our_uname = localname()
### verify nodeid is supplied when nodeid is in the metadata parameters
test = self.new_test("cpg_supply_nodeid",
"Verify nodeid is given when fence agent has nodeid as parameter", True)
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=%s\"" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -F %s -t 3" % (our_uname))
test.add_log_pattern("as nodeid with fence action 'off' targeting %s" % (our_uname))
### verify nodeid is _NOT_ supplied when nodeid is not in the metadata parameters
test = self.new_test("cpg_do_not_supply_nodeid",
"Verify nodeid is _NOT_ given when fence agent does not have nodeid as parameter",
True)
# use a host name that won't be in corosync.conf
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=regr-test\"")
test.add_cmd("stonith_admin", "--output-as=xml -F regr-test -t 3")
test.add_log_pattern("as nodeid with fence action 'off' targeting regr-test",
negative=True)
### verify nodeid use doesn't explode standalone mode
test = self.new_test("standalone_do_not_supply_nodeid",
"Verify nodeid in metadata parameter list doesn't kill standalone mode",
False)
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=%s\"" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -F %s -t 3" % (our_uname))
test.add_log_pattern("as nodeid with fence action 'off' targeting %s" % our_uname,
negative=True)
def build_unfence_tests(self):
""" Register tests that verify unfencing """
our_uname = localname()
### verify unfencing using automatic unfencing
test = self.new_test("cpg_unfence_required_1",
"Verify require unfencing on all devices when automatic=true in agent's metadata",
True)
test.add_cmd('stonith_admin',
'--output-as=xml -R true1 -a fence_dummy_auto_unfence -o "mode=pass" -o "pcmk_host_list=%s"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R true2 -a fence_dummy_auto_unfence -o "mode=pass" -o "pcmk_host_list=%s"' % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -U %s -t 3" % (our_uname))
# both devices should be executed
test.add_log_pattern("using true1 returned 0")
test.add_log_pattern("using true2 returned 0")
### verify unfencing using automatic unfencing fails if any of the required agents fail
test = self.new_test("cpg_unfence_required_2",
"Verify require unfencing on all devices when automatic=true in agent's metadata",
True)
test.add_cmd('stonith_admin',
'--output-as=xml -R true1 -a fence_dummy_auto_unfence -o "mode=pass" -o "pcmk_host_list=%s"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R true2 -a fence_dummy_auto_unfence -o "mode=fail" -o "pcmk_host_list=%s"' % (our_uname))
test.add_cmd_expected_fail("stonith_admin", "--output-as=xml -U %s -t 6" % (our_uname), ExitStatus.ERROR)
### verify unfencing using automatic devices with topology
test = self.new_test("cpg_unfence_required_3",
"Verify require unfencing on all devices even when at different topology levels",
True)
test.add_cmd('stonith_admin',
'--output-as=xml -R true1 -a fence_dummy_auto_unfence -o "mode=pass" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R true2 -a fence_dummy_auto_unfence -o "mode=pass" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 1 -v true1" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 2 -v true2" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -U %s -t 3" % (our_uname))
test.add_log_pattern("using true1 returned 0")
test.add_log_pattern("using true2 returned 0")
### verify unfencing using automatic devices with topology
test = self.new_test("cpg_unfence_required_4",
"Verify all required devices are executed even with topology levels fail.",
True)
test.add_cmd('stonith_admin',
'--output-as=xml -R true1 -a fence_dummy_auto_unfence -o "mode=pass" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R true2 -a fence_dummy_auto_unfence -o "mode=pass" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R true3 -a fence_dummy_auto_unfence -o "mode=pass" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R true4 -a fence_dummy_auto_unfence -o "mode=pass" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R false1 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R false2 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R false3 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd('stonith_admin',
'--output-as=xml -R false4 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=%s node3"' % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 1 -v true1" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 1 -v false1" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 2 -v false2" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 2 -v true2" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 2 -v false3" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 2 -v true3" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 3 -v false4" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 4 -v true4" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -U %s -t 3" % (our_uname))
test.add_log_pattern("using true1 returned 0")
test.add_log_pattern("using true2 returned 0")
test.add_log_pattern("using true3 returned 0")
test.add_log_pattern("using true4 returned 0")
def build_unfence_on_target_tests(self):
""" Register tests that verify unfencing that runs on the target """
our_uname = localname()
### verify unfencing using on_target device
test = self.new_test("cpg_unfence_on_target_1",
"Verify unfencing with on_target = true", True)
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=%s\"" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -U %s -t 3" % (our_uname))
test.add_log_pattern("(on) to be executed on target")
### verify failure of unfencing using on_target device
test = self.new_test("cpg_unfence_on_target_2",
"Verify failure unfencing with on_target = true",
True)
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=%s node_fake_1234\"" % (our_uname))
test.add_cmd_expected_fail("stonith_admin",
"--output-as=xml -U node_fake_1234 -t 3",
ExitStatus.NOSUCH)
test.add_log_pattern("(on) to be executed on target")
### verify unfencing using on_target device with topology
test = self.new_test("cpg_unfence_on_target_3",
"Verify unfencing with on_target = true using topology",
True)
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=%s node3\"" % (our_uname))
test.add_cmd("stonith_admin",
"--output-as=xml -R true2 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=%s node3\"" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 1 -v true1" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r %s -i 2 -v true2" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -U %s -t 3" % (our_uname))
test.add_log_pattern("(on) to be executed on target")
### verify unfencing using on_target device with topology fails when target node doesn't exist
test = self.new_test("cpg_unfence_on_target_4",
"Verify unfencing failure with on_target = true using topology",
True)
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=%s node_fake\"" % (our_uname))
test.add_cmd("stonith_admin",
"--output-as=xml -R true2 -a fence_dummy -o \"mode=pass\" -o \"pcmk_host_list=%s node_fake\"" % (our_uname))
test.add_cmd("stonith_admin", "--output-as=xml -r node_fake -i 1 -v true1")
test.add_cmd("stonith_admin", "--output-as=xml -r node_fake -i 2 -v true2")
test.add_cmd_expected_fail("stonith_admin",
"--output-as=xml -U node_fake -t 3",
ExitStatus.NOSUCH)
test.add_log_pattern("(on) to be executed on target")
def build_remap_tests(self):
""" Register tests that verify remapping of reboots to off-on """
test = self.new_test("cpg_remap_simple",
"Verify sequential topology reboot is remapped to all-off-then-all-on", True)
test.add_cmd("stonith_admin",
"""--output-as=xml -R true1 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node_fake" """
"""-o "pcmk_off_timeout=1" -o "pcmk_reboot_timeout=10" """)
test.add_cmd("stonith_admin",
"""--output-as=xml -R true2 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node_fake" """
"""-o "pcmk_off_timeout=2" -o "pcmk_reboot_timeout=20" """)
test.add_cmd("stonith_admin", "--output-as=xml -r node_fake -i 1 -v true1 -v true2")
test.add_cmd("stonith_admin", "--output-as=xml -B node_fake -t 5")
test.add_log_pattern("Remapping multiple-device reboot targeting node_fake")
# timeout should be sum of off timeouts (1+2=3), not reboot timeouts (10+20=30)
test.add_log_pattern("Total timeout set to 3 for peer's fencing targeting node_fake")
test.add_log_pattern("perform 'off' action targeting node_fake using true1")
test.add_log_pattern("perform 'off' action targeting node_fake using true2")
test.add_log_pattern("Remapped 'off' targeting node_fake complete, remapping to 'on'")
# fence_dummy sets "on" as an on_target action
test.add_log_pattern("Ignoring true1 'on' failure (no capable peers) targeting node_fake")
test.add_log_pattern("Ignoring true2 'on' failure (no capable peers) targeting node_fake")
test.add_log_pattern("Undoing remap of reboot targeting node_fake")
test = self.new_test("cpg_remap_simple_off",
"Verify sequential topology reboot skips 'on' if "
"pcmk_reboot_action=off or agent doesn't support "
"'on'", True)
test.add_cmd("stonith_admin",
"--output-as=xml -R true1 -a fence_dummy -o mode=pass "
"-o pcmk_host_list=node_fake -o pcmk_off_timeout=1 "
"-o pcmk_reboot_timeout=10 -o pcmk_reboot_action=off")
test.add_cmd("stonith_admin",
"--output-as=xml -R true2 -a fence_dummy_no_on "
"-o mode=pass -o pcmk_host_list=node_fake "
"-o pcmk_off_timeout=2 -o pcmk_reboot_timeout=20")
test.add_cmd("stonith_admin",
"--output-as=xml -r node_fake -i 1 -v true1 -v true2")
test.add_cmd("stonith_admin", "--output-as=xml -B node_fake -t 5")
test.add_log_pattern("Remapping multiple-device reboot targeting node_fake")
# timeout should be sum of off timeouts (1+2=3), not reboot timeouts (10+20=30)
test.add_log_pattern("Total timeout set to 3 for peer's fencing targeting node_fake")
test.add_log_pattern("perform 'off' action targeting node_fake using true1")
test.add_log_pattern("perform 'off' action targeting node_fake using true2")
test.add_log_pattern("Remapped 'off' targeting node_fake complete, remapping to 'on'")
# "on" should be skipped
test.add_log_pattern("Not turning node_fake back on using "
"true1 because the device is configured "
"to stay off")
test.add_log_pattern("Not turning node_fake back on using true2"
" because the agent doesn't support 'on'")
test.add_log_pattern("Undoing remap of reboot targeting node_fake")
test = self.new_test("cpg_remap_automatic",
"Verify remapped topology reboot skips automatic 'on'", True)
test.add_cmd("stonith_admin",
"""--output-as=xml -R true1 -a fence_dummy_auto_unfence """
"""-o "mode=pass" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin",
"""--output-as=xml -R true2 -a fence_dummy_auto_unfence """
"""-o "mode=pass" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin", "--output-as=xml -r node_fake -i 1 -v true1 -v true2")
test.add_cmd("stonith_admin", "--output-as=xml -B node_fake -t 5")
test.add_log_pattern("Remapping multiple-device reboot targeting node_fake")
test.add_log_pattern("perform 'off' action targeting node_fake using true1")
test.add_log_pattern("perform 'off' action targeting node_fake using true2")
test.add_log_pattern("Remapped 'off' targeting node_fake complete, remapping to 'on'")
test.add_log_pattern("Undoing remap of reboot targeting node_fake")
test.add_log_pattern("perform 'on' action targeting node_fake using",
negative=True)
test.add_log_pattern("'on' failure",
negative=True)
test = self.new_test("cpg_remap_complex_1",
"Verify remapped topology reboot in second level works if non-remapped first level fails",
True)
test.add_cmd("stonith_admin", """--output-as=xml -R false1 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin", """--output-as=xml -R true1 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin", """--output-as=xml -R true2 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin", "--output-as=xml -r node_fake -i 1 -v false1")
test.add_cmd("stonith_admin", "--output-as=xml -r node_fake -i 2 -v true1 -v true2")
test.add_cmd("stonith_admin", "--output-as=xml -B node_fake -t 5")
test.add_log_pattern("perform 'reboot' action targeting node_fake using false1")
test.add_log_pattern("Remapping multiple-device reboot targeting node_fake")
test.add_log_pattern("perform 'off' action targeting node_fake using true1")
test.add_log_pattern("perform 'off' action targeting node_fake using true2")
test.add_log_pattern("Remapped 'off' targeting node_fake complete, remapping to 'on'")
test.add_log_pattern("Ignoring true1 'on' failure (no capable peers) targeting node_fake")
test.add_log_pattern("Ignoring true2 'on' failure (no capable peers) targeting node_fake")
test.add_log_pattern("Undoing remap of reboot targeting node_fake")
test = self.new_test("cpg_remap_complex_2",
"Verify remapped topology reboot failure in second level proceeds to third level",
True)
test.add_cmd("stonith_admin", """--output-as=xml -R false1 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin", """--output-as=xml -R false2 -a fence_dummy -o "mode=fail" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin", """--output-as=xml -R true1 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin", """--output-as=xml -R true2 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin", """--output-as=xml -R true3 -a fence_dummy -o "mode=pass" -o "pcmk_host_list=node_fake" """)
test.add_cmd("stonith_admin", "--output-as=xml -r node_fake -i 1 -v false1")
test.add_cmd("stonith_admin", "--output-as=xml -r node_fake -i 2 -v true1 -v false2 -v true3")
test.add_cmd("stonith_admin", "--output-as=xml -r node_fake -i 3 -v true2")
test.add_cmd("stonith_admin", "--output-as=xml -B node_fake -t 5")
test.add_log_pattern("perform 'reboot' action targeting node_fake using false1")
test.add_log_pattern("Remapping multiple-device reboot targeting node_fake")
test.add_log_pattern("perform 'off' action targeting node_fake using true1")
test.add_log_pattern("perform 'off' action targeting node_fake using false2")
test.add_log_pattern("Attempted to execute agent fence_dummy (off) the maximum number of times")
test.add_log_pattern("Undoing remap of reboot targeting node_fake")
test.add_log_pattern("perform 'reboot' action targeting node_fake using true2")
test.add_log_pattern("node_fake with true3",
negative=True)
def build_query_tests(self):
""" run stonith_admin --metadata for the fence_dummy agent and check command output """
test = self.new_test("get_metadata",
"Run stonith_admin --metadata for the fence_dummy agent", True)
test.add_cmd_check_stdout("stonith_admin", "--output-as=xml -a fence_dummy --metadata", '<shortdesc lang')
def build_metadata_tests(self):
""" run fence-agents coming with pacemaker with -o metadata and check for valid xml """
test = self.new_test("check_metadata_dummy",
"Run fence_dummy -o metadata and check for valid xml", False)
test.add_cmd("fence_dummy", "-o metadata", check_rng=False, check_stderr=False)
# fence_dummy prints on stderr to check that tools just listen on stdout
test = self.new_test("check_metadata_watchdog",
"Run fence_watchdog -o metadata and check for valid xml", False)
test.add_cmd("fence_watchdog", "-o metadata", check_rng=False)
def build_validate_tests(self):
""" run stonith_admin --validate for the fence_dummy agent and check command output """
test = self.new_test("validate_dummy",
"Run stonith_admin --validate-all and check output", False)
test.add_cmd_expected_fail("stonith_admin", "-a fence_dummy --validate --output-as=xml")
test.add_cmd("stonith_admin", """-a fence_dummy --validate -o "delay=5" --output-as=xml""", check_rng=False)
test.add_cmd_expected_fail("stonith_admin", """-a fence_dummy --validate -o "delay=15" --output-as=xml""")
def setup_environment(self, use_corosync):
""" Prepare the host before executing any tests """
if use_corosync:
self._corosync.start(kill_first=True)
subprocess.call(["cts-support", "install"])
def cleanup_environment(self, use_corosync):
""" Clean up the host after executing desired tests """
if use_corosync:
self._corosync.stop()
subprocess.call(["cts-support", "uninstall"])
def build_options():
parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter,
description="Run pacemaker-fenced regression tests",
epilog="Example: Run only the test 'start_stop'\n"
"\t " + sys.argv[0] + " --run-only start_stop\n\n"
"Example: Run only the tests with the string 'systemd' present in them\n"
"\t " + sys.argv[0] + " --run-only-pattern systemd")
parser.add_argument("-c", "--cpg-only", action="store_true",
help="Only run tests that require corosync")
parser.add_argument("-l", "--list-tests", action="store_true",
help="Print out all registered tests")
parser.add_argument("-n", "--no-cpg", action="store_true",
help="Only run tests that do not require corosync")
parser.add_argument("-p", "--run-only-pattern", metavar='PATTERN',
help="Run only tests matching the given pattern")
parser.add_argument("-r", "--run-only", metavar='TEST',
help="Run a specific test")
parser.add_argument("-t", "--timeout", type=float, default=2,
help="Up to how many seconds each test case waits for the daemon to "
"be initialized. Defaults to 2. The value 0 means no limit.")
parser.add_argument("-w", "--force-wait", action="store_true",
help="Each test case waits the default/specified --timeout for the "
"daemon without tracking the log")
parser.add_argument("-V", "--verbose", action="store_true",
help="Verbose output")
args = parser.parse_args()
return args
def main():
""" Run fencing regression tests as specified by arguments """
update_path()
# Ensure all command output is in portable locale for comparison
os.environ['LC_ALL'] = "C"
opts = build_options()
exit_if_proc_running("pacemaker-fenced")
use_corosync = not opts.no_cpg
if use_corosync:
exit_if_proc_running("corosync")
# Create a temporary directory for log files (the directory and its
# contents will automatically be erased when done)
with tempfile.TemporaryDirectory(prefix="cts-fencing-") as logdir:
tests = FenceTests(verbose=opts.verbose, timeout=opts.timeout,
force_wait=opts.force_wait, logdir=logdir)
tests.build_standalone_tests()
tests.build_custom_timeout_tests()
tests.build_api_sanity_tests()
tests.build_fence_merge_tests()
tests.build_fence_no_merge_tests()
tests.build_unfence_tests()
tests.build_unfence_on_target_tests()
tests.build_nodeid_tests()
tests.build_remap_tests()
tests.build_query_tests()
tests.build_metadata_tests()
tests.build_validate_tests()
if opts.list_tests:
tests.print_list()
sys.exit(ExitStatus.OK)
print("Starting ...")
try:
tests.setup_environment(use_corosync)
except TimeoutError:
print("corosync did not start in time, exiting")
sys.exit(ExitStatus.TIMEOUT)
if opts.run_only_pattern:
tests.run_tests_matching(opts.run_only_pattern)
tests.print_results()
elif opts.run_only:
tests.run_single(opts.run_only)
tests.print_results()
elif opts.no_cpg:
tests.run_no_cpg()
tests.print_results()
elif opts.cpg_only:
tests.run_cpg_only()
tests.print_results()
else:
tests.run_tests()
tests.print_results()
tests.cleanup_environment(use_corosync)
tests.exit()
if __name__ == "__main__":
main()
diff --git a/daemons/fenced/fenced_commands.c b/daemons/fenced/fenced_commands.c
index 82644bcddf..ba63cf890e 100644
--- a/daemons/fenced/fenced_commands.c
+++ b/daemons/fenced/fenced_commands.c
@@ -1,3674 +1,3674 @@
/*
* Copyright 2009-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <sys/param.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/utsname.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <ctype.h>
#include <crm/crm.h>
#include <crm/msg_xml.h>
#include <crm/common/ipc.h>
#include <crm/common/ipc_internal.h>
#include <crm/cluster/internal.h>
#include <crm/common/mainloop.h>
#include <crm/stonith-ng.h>
#include <crm/fencing/internal.h>
#include <crm/common/xml.h>
#include <pacemaker-fenced.h>
GHashTable *device_list = NULL;
GHashTable *topology = NULL;
static GList *cmd_list = NULL;
static GHashTable *fenced_handlers = NULL;
struct device_search_s {
/* target of fence action */
char *host;
/* requested fence action */
char *action;
/* timeout to use if a device is queried dynamically for possible targets */
int per_device_timeout;
/* number of registered fencing devices at time of request */
int replies_needed;
/* number of device replies received so far */
int replies_received;
/* whether the target is eligible to perform requested action (or off) */
bool allow_suicide;
/* private data to pass to search callback function */
void *user_data;
/* function to call when all replies have been received */
void (*callback) (GList * devices, void *user_data);
/* devices capable of performing requested action (or off if remapping) */
GList *capable;
/* Whether to perform searches that support the action */
uint32_t support_action_only;
};
static gboolean stonith_device_dispatch(gpointer user_data);
static void st_child_done(int pid, const pcmk__action_result_t *result,
void *user_data);
static void stonith_send_reply(xmlNode * reply, int call_options, const char *remote_peer,
pcmk__client_t *client);
static void search_devices_record_result(struct device_search_s *search, const char *device,
gboolean can_fence);
static int get_agent_metadata(const char *agent, xmlNode **metadata);
static void read_action_metadata(stonith_device_t *device);
static enum fenced_target_by unpack_level_kind(const xmlNode *level);
typedef struct async_command_s {
int id;
int pid;
int fd_stdout;
int options;
int default_timeout; /* seconds */
int timeout; /* seconds */
int start_delay; // seconds (-1 means disable static/random fencing delays)
int delay_id;
char *op;
char *origin;
char *client;
char *client_name;
char *remote_op_id;
char *target;
uint32_t target_nodeid;
char *action;
char *device;
GList *device_list;
GList *next_device_iter; // device_list entry for next device to execute
void *internal_user_data;
void (*done_cb) (int pid, const pcmk__action_result_t *result,
void *user_data);
guint timer_sigterm;
guint timer_sigkill;
/*! If the operation timed out, this is the last signal
* we sent to the process to get it to terminate */
int last_timeout_signo;
stonith_device_t *active_on;
stonith_device_t *activating_on;
} async_command_t;
static xmlNode *construct_async_reply(const async_command_t *cmd,
const pcmk__action_result_t *result);
static gboolean
is_action_required(const char *action, const stonith_device_t *device)
{
return (device != NULL) && device->automatic_unfencing
&& pcmk__str_eq(action, "on", pcmk__str_none);
}
static int
get_action_delay_max(const stonith_device_t *device, const char *action)
{
const char *value = NULL;
int delay_max = 0;
if (!pcmk__is_fencing_action(action)) {
return 0;
}
value = g_hash_table_lookup(device->params, PCMK_STONITH_DELAY_MAX);
if (value) {
delay_max = crm_parse_interval_spec(value) / 1000;
}
return delay_max;
}
static int
get_action_delay_base(const stonith_device_t *device, const char *action,
const char *target)
{
char *hash_value = NULL;
int delay_base = 0;
if (!pcmk__is_fencing_action(action)) {
return 0;
}
hash_value = g_hash_table_lookup(device->params, PCMK_STONITH_DELAY_BASE);
if (hash_value) {
char *value = strdup(hash_value);
char *valptr = value;
CRM_ASSERT(value != NULL);
if (target != NULL) {
for (char *val = strtok(value, "; \t"); val != NULL; val = strtok(NULL, "; \t")) {
char *mapval = strchr(val, ':');
if (mapval == NULL || mapval[1] == 0) {
crm_err("pcmk_delay_base: empty value in mapping", val);
continue;
}
if (mapval != val && strncasecmp(target, val, (size_t)(mapval - val)) == 0) {
value = mapval + 1;
crm_debug("pcmk_delay_base mapped to %s for %s",
value, target);
break;
}
}
}
if (strchr(value, ':') == 0) {
delay_base = crm_parse_interval_spec(value) / 1000;
}
free(valptr);
}
return delay_base;
}
/*!
* \internal
* \brief Override STONITH timeout with pcmk_*_timeout if available
*
* \param[in] device STONITH device to use
* \param[in] action STONITH action name
* \param[in] default_timeout Timeout to use if device does not have
* a pcmk_*_timeout parameter for action
*
* \return Value of pcmk_(action)_timeout if available, otherwise default_timeout
* \note For consistency, it would be nice if reboot/off/on timeouts could be
* set the same way as start/stop/monitor timeouts, i.e. with an
* <operation> entry in the fencing resource configuration. However that
* is insufficient because fencing devices may be registered directly via
* the fencer's register_device() API instead of going through the CIB
* (e.g. stonith_admin uses it for its -R option, and the executor uses it
* to ensure a device is registered when a command is issued). As device
* properties, pcmk_*_timeout parameters can be grabbed by the fencer when
* the device is registered, whether by CIB change or API call.
*/
static int
get_action_timeout(const stonith_device_t *device, const char *action,
int default_timeout)
{
if (action && device && device->params) {
char buffer[64] = { 0, };
const char *value = NULL;
/* If "reboot" was requested but the device does not support it,
* we will remap to "off", so check timeout for "off" instead
*/
if (pcmk__str_eq(action, "reboot", pcmk__str_none)
&& !pcmk_is_set(device->flags, st_device_supports_reboot)) {
crm_trace("%s doesn't support reboot, using timeout for off instead",
device->id);
action = "off";
}
/* If the device config specified an action-specific timeout, use it */
snprintf(buffer, sizeof(buffer), "pcmk_%s_timeout", action);
value = g_hash_table_lookup(device->params, buffer);
if (value) {
return atoi(value);
}
}
return default_timeout;
}
/*!
* \internal
* \brief Get the currently executing device for a fencing operation
*
* \param[in] cmd Fencing operation to check
*
* \return Currently executing device for \p cmd if any, otherwise NULL
*/
static stonith_device_t *
cmd_device(const async_command_t *cmd)
{
if ((cmd == NULL) || (cmd->device == NULL) || (device_list == NULL)) {
return NULL;
}
return g_hash_table_lookup(device_list, cmd->device);
}
/*!
* \internal
* \brief Return the configured reboot action for a given device
*
* \param[in] device_id Device ID
*
* \return Configured reboot action for \p device_id
*/
const char *
fenced_device_reboot_action(const char *device_id)
{
const char *action = NULL;
if ((device_list != NULL) && (device_id != NULL)) {
stonith_device_t *device = g_hash_table_lookup(device_list, device_id);
if ((device != NULL) && (device->params != NULL)) {
action = g_hash_table_lookup(device->params, "pcmk_reboot_action");
}
}
return pcmk__s(action, "reboot");
}
/*!
* \internal
* \brief Check whether a given device supports the "on" action
*
* \param[in] device_id Device ID
*
* \return true if \p device_id supports "on", otherwise false
*/
bool
fenced_device_supports_on(const char *device_id)
{
if ((device_list != NULL) && (device_id != NULL)) {
stonith_device_t *device = g_hash_table_lookup(device_list, device_id);
if (device != NULL) {
return pcmk_is_set(device->flags, st_device_supports_on);
}
}
return false;
}
static void
free_async_command(async_command_t * cmd)
{
if (!cmd) {
return;
}
if (cmd->delay_id) {
g_source_remove(cmd->delay_id);
}
cmd_list = g_list_remove(cmd_list, cmd);
g_list_free_full(cmd->device_list, free);
free(cmd->device);
free(cmd->action);
free(cmd->target);
free(cmd->remote_op_id);
free(cmd->client);
free(cmd->client_name);
free(cmd->origin);
free(cmd->op);
free(cmd);
}
/*!
* \internal
* \brief Create a new asynchronous fencing operation from request XML
*
* \param[in] msg Fencing request XML (from IPC or CPG)
*
* \return Newly allocated fencing operation on success, otherwise NULL
*
* \note This asserts on memory errors, so a NULL return indicates an
* unparseable message.
*/
static async_command_t *
create_async_command(xmlNode *msg)
{
xmlNode *op = NULL;
async_command_t *cmd = NULL;
if (msg == NULL) {
return NULL;
}
op = get_xpath_object("//@" F_STONITH_ACTION, msg, LOG_ERR);
if (op == NULL) {
return NULL;
}
cmd = calloc(1, sizeof(async_command_t));
CRM_ASSERT(cmd != NULL);
// All messages must include these
cmd->action = crm_element_value_copy(op, F_STONITH_ACTION);
cmd->op = crm_element_value_copy(msg, F_STONITH_OPERATION);
cmd->client = crm_element_value_copy(msg, F_STONITH_CLIENTID);
if ((cmd->action == NULL) || (cmd->op == NULL) || (cmd->client == NULL)) {
free_async_command(cmd);
return NULL;
}
crm_element_value_int(msg, F_STONITH_CALLID, &(cmd->id));
crm_element_value_int(msg, F_STONITH_CALLOPTS, &(cmd->options));
crm_element_value_int(msg, F_STONITH_DELAY, &(cmd->start_delay));
crm_element_value_int(msg, F_STONITH_TIMEOUT, &(cmd->default_timeout));
cmd->timeout = cmd->default_timeout;
cmd->origin = crm_element_value_copy(msg, F_ORIG);
cmd->remote_op_id = crm_element_value_copy(msg, F_STONITH_REMOTE_OP_ID);
cmd->client_name = crm_element_value_copy(msg, F_STONITH_CLIENTNAME);
cmd->target = crm_element_value_copy(op, F_STONITH_TARGET);
cmd->device = crm_element_value_copy(op, F_STONITH_DEVICE);
cmd->done_cb = st_child_done;
// Track in global command list
cmd_list = g_list_append(cmd_list, cmd);
return cmd;
}
static int
get_action_limit(stonith_device_t * device)
{
const char *value = NULL;
int action_limit = 1;
value = g_hash_table_lookup(device->params, PCMK_STONITH_ACTION_LIMIT);
if ((value == NULL)
|| (pcmk__scan_min_int(value, &action_limit, INT_MIN) != pcmk_rc_ok)
|| (action_limit == 0)) {
action_limit = 1;
}
return action_limit;
}
static int
get_active_cmds(stonith_device_t * device)
{
int counter = 0;
GList *gIter = NULL;
GList *gIterNext = NULL;
CRM_CHECK(device != NULL, return 0);
for (gIter = cmd_list; gIter != NULL; gIter = gIterNext) {
async_command_t *cmd = gIter->data;
gIterNext = gIter->next;
if (cmd->active_on == device) {
counter++;
}
}
return counter;
}
static void
fork_cb(int pid, void *user_data)
{
async_command_t *cmd = (async_command_t *) user_data;
stonith_device_t * device =
/* in case of a retry we've done the move from
activating_on to active_on already
*/
cmd->activating_on?cmd->activating_on:cmd->active_on;
CRM_ASSERT(device);
crm_debug("Operation '%s' [%d]%s%s using %s now running with %ds timeout",
cmd->action, pid,
((cmd->target == NULL)? "" : " targeting "),
pcmk__s(cmd->target, ""), device->id, cmd->timeout);
cmd->active_on = device;
cmd->activating_on = NULL;
}
static int
get_agent_metadata_cb(gpointer data) {
stonith_device_t *device = data;
guint period_ms;
switch (get_agent_metadata(device->agent, &device->agent_metadata)) {
case pcmk_rc_ok:
if (device->agent_metadata) {
read_action_metadata(device);
stonith__device_parameter_flags(&(device->flags), device->id,
device->agent_metadata);
}
return G_SOURCE_REMOVE;
case EAGAIN:
period_ms = pcmk__mainloop_timer_get_period(device->timer);
if (period_ms < 160 * 1000) {
mainloop_timer_set_period(device->timer, 2 * period_ms);
}
return G_SOURCE_CONTINUE;
default:
return G_SOURCE_REMOVE;
}
}
/*!
* \internal
* \brief Call a command's action callback for an internal (not library) result
*
* \param[in,out] cmd Command to report result for
* \param[in] execution_status Execution status to use for result
* \param[in] exit_status Exit status to use for result
* \param[in] exit_reason Exit reason to use for result
*/
static void
report_internal_result(async_command_t *cmd, int exit_status,
int execution_status, const char *exit_reason)
{
pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
pcmk__set_result(&result, exit_status, execution_status, exit_reason);
cmd->done_cb(0, &result, cmd);
pcmk__reset_result(&result);
}
static gboolean
stonith_device_execute(stonith_device_t * device)
{
int exec_rc = 0;
const char *action_str = NULL;
const char *host_arg = NULL;
async_command_t *cmd = NULL;
stonith_action_t *action = NULL;
int active_cmds = 0;
int action_limit = 0;
GList *gIter = NULL;
GList *gIterNext = NULL;
CRM_CHECK(device != NULL, return FALSE);
active_cmds = get_active_cmds(device);
action_limit = get_action_limit(device);
if (action_limit > -1 && active_cmds >= action_limit) {
crm_trace("%s is over its action limit of %d (%u active action%s)",
device->id, action_limit, active_cmds,
pcmk__plural_s(active_cmds));
return TRUE;
}
for (gIter = device->pending_ops; gIter != NULL; gIter = gIterNext) {
async_command_t *pending_op = gIter->data;
gIterNext = gIter->next;
if (pending_op && pending_op->delay_id) {
crm_trace("Operation '%s'%s%s using %s was asked to run too early, "
"waiting for start delay of %ds",
pending_op->action,
((pending_op->target == NULL)? "" : " targeting "),
pcmk__s(pending_op->target, ""),
device->id, pending_op->start_delay);
continue;
}
device->pending_ops = g_list_remove_link(device->pending_ops, gIter);
g_list_free_1(gIter);
cmd = pending_op;
break;
}
if (cmd == NULL) {
crm_trace("No actions using %s are needed", device->id);
return TRUE;
}
if (pcmk__str_any_of(device->agent, STONITH_WATCHDOG_AGENT,
STONITH_WATCHDOG_AGENT_INTERNAL, NULL)) {
if (pcmk__is_fencing_action(cmd->action)) {
if (node_does_watchdog_fencing(stonith_our_uname)) {
pcmk__panic(__func__);
goto done;
}
} else {
crm_info("Faking success for %s watchdog operation", cmd->action);
report_internal_result(cmd, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
goto done;
}
}
#if SUPPORT_CIBSECRETS
exec_rc = pcmk__substitute_secrets(device->id, device->params);
if (exec_rc != pcmk_rc_ok) {
if (pcmk__str_eq(cmd->action, "stop", pcmk__str_none)) {
crm_info("Proceeding with stop operation for %s "
"despite being unable to load CIB secrets (%s)",
device->id, pcmk_rc_str(exec_rc));
} else {
crm_err("Considering %s unconfigured "
"because unable to load CIB secrets: %s",
device->id, pcmk_rc_str(exec_rc));
report_internal_result(cmd, CRM_EX_ERROR, PCMK_EXEC_NO_SECRETS,
"Failed to get CIB secrets");
goto done;
}
}
#endif
action_str = cmd->action;
if (pcmk__str_eq(cmd->action, "reboot", pcmk__str_none)
&& !pcmk_is_set(device->flags, st_device_supports_reboot)) {
crm_notice("Remapping 'reboot' action%s%s using %s to 'off' "
"because agent '%s' does not support reboot",
((cmd->target == NULL)? "" : " targeting "),
pcmk__s(cmd->target, ""), device->id, device->agent);
action_str = "off";
}
if (pcmk_is_set(device->flags, st_device_supports_parameter_port)) {
host_arg = "port";
} else if (pcmk_is_set(device->flags, st_device_supports_parameter_plug)) {
host_arg = "plug";
}
action = stonith__action_create(device->agent, action_str, cmd->target,
cmd->target_nodeid, cmd->timeout,
device->params, device->aliases, host_arg);
/* for async exec, exec_rc is negative for early error exit
otherwise handling of success/errors is done via callbacks */
cmd->activating_on = device;
exec_rc = stonith__execute_async(action, (void *)cmd, cmd->done_cb,
fork_cb);
if (exec_rc < 0) {
cmd->activating_on = NULL;
cmd->done_cb(0, stonith__action_result(action), cmd);
stonith__destroy_action(action);
}
done:
/* Device might get triggered to work by multiple fencing commands
* simultaneously. Trigger the device again to make sure any
* remaining concurrent commands get executed. */
if (device->pending_ops) {
mainloop_set_trigger(device->work);
}
return TRUE;
}
static gboolean
stonith_device_dispatch(gpointer user_data)
{
return stonith_device_execute(user_data);
}
static gboolean
start_delay_helper(gpointer data)
{
async_command_t *cmd = data;
stonith_device_t *device = cmd_device(cmd);
cmd->delay_id = 0;
if (device) {
mainloop_set_trigger(device->work);
}
return FALSE;
}
static void
schedule_stonith_command(async_command_t * cmd, stonith_device_t * device)
{
int delay_max = 0;
int delay_base = 0;
int requested_delay = cmd->start_delay;
CRM_CHECK(cmd != NULL, return);
CRM_CHECK(device != NULL, return);
if (cmd->device) {
free(cmd->device);
}
if (device->include_nodeid && (cmd->target != NULL)) {
crm_node_t *node = crm_get_peer(0, cmd->target);
cmd->target_nodeid = node->id;
}
cmd->device = strdup(device->id);
cmd->timeout = get_action_timeout(device, cmd->action, cmd->default_timeout);
if (cmd->remote_op_id) {
crm_debug("Scheduling '%s' action%s%s using %s for remote peer %s "
"with op id %.8s and timeout %ds",
cmd->action,
(cmd->target == NULL)? "" : " targeting ",
pcmk__s(cmd->target, ""),
device->id, cmd->origin, cmd->remote_op_id, cmd->timeout);
} else {
crm_debug("Scheduling '%s' action%s%s using %s for %s with timeout %ds",
cmd->action,
(cmd->target == NULL)? "" : " targeting ",
pcmk__s(cmd->target, ""),
device->id, cmd->client, cmd->timeout);
}
device->pending_ops = g_list_append(device->pending_ops, cmd);
mainloop_set_trigger(device->work);
// Value -1 means disable any static/random fencing delays
if (requested_delay < 0) {
return;
}
delay_max = get_action_delay_max(device, cmd->action);
delay_base = get_action_delay_base(device, cmd->action, cmd->target);
if (delay_max == 0) {
delay_max = delay_base;
}
if (delay_max < delay_base) {
crm_warn(PCMK_STONITH_DELAY_BASE " (%ds) is larger than "
PCMK_STONITH_DELAY_MAX " (%ds) for %s using %s "
"(limiting to maximum delay)",
delay_base, delay_max, cmd->action, device->id);
delay_base = delay_max;
}
if (delay_max > 0) {
// coverity[dont_call] We're not using rand() for security
cmd->start_delay +=
((delay_max != delay_base)?(rand() % (delay_max - delay_base)):0)
+ delay_base;
}
if (cmd->start_delay > 0) {
crm_notice("Delaying '%s' action%s%s using %s for %ds " CRM_XS
" timeout=%ds requested_delay=%ds base=%ds max=%ds",
cmd->action,
(cmd->target == NULL)? "" : " targeting ",
pcmk__s(cmd->target, ""),
device->id, cmd->start_delay, cmd->timeout,
requested_delay, delay_base, delay_max);
cmd->delay_id =
g_timeout_add_seconds(cmd->start_delay, start_delay_helper, cmd);
}
}
static void
free_device(gpointer data)
{
GList *gIter = NULL;
stonith_device_t *device = data;
g_hash_table_destroy(device->params);
g_hash_table_destroy(device->aliases);
for (gIter = device->pending_ops; gIter != NULL; gIter = gIter->next) {
async_command_t *cmd = gIter->data;
crm_warn("Removal of device '%s' purged operation '%s'", device->id, cmd->action);
report_internal_result(cmd, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"Device was removed before action could be executed");
}
g_list_free(device->pending_ops);
g_list_free_full(device->targets, free);
if (device->timer) {
mainloop_timer_stop(device->timer);
mainloop_timer_del(device->timer);
}
mainloop_destroy_trigger(device->work);
free_xml(device->agent_metadata);
free(device->namespace);
if (device->on_target_actions != NULL) {
g_string_free(device->on_target_actions, TRUE);
}
free(device->agent);
free(device->id);
free(device);
}
void free_device_list(void)
{
if (device_list != NULL) {
g_hash_table_destroy(device_list);
device_list = NULL;
}
}
void
init_device_list(void)
{
if (device_list == NULL) {
device_list = pcmk__strkey_table(NULL, free_device);
}
}
static GHashTable *
build_port_aliases(const char *hostmap, GList ** targets)
{
char *name = NULL;
int last = 0, lpc = 0, max = 0, added = 0;
GHashTable *aliases = pcmk__strikey_table(free, free);
if (hostmap == NULL) {
return aliases;
}
max = strlen(hostmap);
for (; lpc <= max; lpc++) {
switch (hostmap[lpc]) {
/* Skip escaped chars */
case '\\':
lpc++;
break;
/* Assignment chars */
case '=':
case ':':
if (lpc > last) {
free(name);
name = calloc(1, 1 + lpc - last);
memcpy(name, hostmap + last, lpc - last);
}
last = lpc + 1;
break;
/* Delimeter chars */
/* case ',': Potentially used to specify multiple ports */
case 0:
case ';':
case ' ':
case '\t':
if (name) {
char *value = NULL;
int k = 0;
value = calloc(1, 1 + lpc - last);
memcpy(value, hostmap + last, lpc - last);
for (int i = 0; value[i] != '\0'; i++) {
if (value[i] != '\\') {
value[k++] = value[i];
}
}
value[k] = '\0';
crm_debug("Adding alias '%s'='%s'", name, value);
g_hash_table_replace(aliases, name, value);
if (targets) {
*targets = g_list_append(*targets, strdup(value));
}
value = NULL;
name = NULL;
added++;
} else if (lpc > last) {
crm_debug("Parse error at offset %d near '%s'", lpc - last, hostmap + last);
}
last = lpc + 1;
break;
}
if (hostmap[lpc] == 0) {
break;
}
}
if (added == 0) {
crm_info("No host mappings detected in '%s'", hostmap);
}
free(name);
return aliases;
}
GHashTable *metadata_cache = NULL;
void
free_metadata_cache(void) {
if (metadata_cache != NULL) {
g_hash_table_destroy(metadata_cache);
metadata_cache = NULL;
}
}
static void
init_metadata_cache(void) {
if (metadata_cache == NULL) {
metadata_cache = pcmk__strkey_table(free, free);
}
}
int
get_agent_metadata(const char *agent, xmlNode ** metadata)
{
char *buffer = NULL;
if (metadata == NULL) {
return EINVAL;
}
*metadata = NULL;
if (pcmk__str_eq(agent, STONITH_WATCHDOG_AGENT_INTERNAL, pcmk__str_none)) {
return pcmk_rc_ok;
}
init_metadata_cache();
buffer = g_hash_table_lookup(metadata_cache, agent);
if (buffer == NULL) {
stonith_t *st = stonith_api_new();
int rc;
if (st == NULL) {
crm_warn("Could not get agent meta-data: "
"API memory allocation failed");
return EAGAIN;
}
rc = st->cmds->metadata(st, st_opt_sync_call, agent,
NULL, &buffer, 10);
stonith_api_delete(st);
if (rc || !buffer) {
crm_err("Could not retrieve metadata for fencing agent %s", agent);
return EAGAIN;
}
g_hash_table_replace(metadata_cache, strdup(agent), buffer);
}
*metadata = string2xml(buffer);
return pcmk_rc_ok;
}
static gboolean
is_nodeid_required(xmlNode * xml)
{
xmlXPathObjectPtr xpath = NULL;
if (stand_alone) {
return FALSE;
}
if (!xml) {
return FALSE;
}
xpath = xpath_search(xml, "//parameter[@name='nodeid']");
if (numXpathResults(xpath) <= 0) {
freeXpathObject(xpath);
return FALSE;
}
freeXpathObject(xpath);
return TRUE;
}
static void
read_action_metadata(stonith_device_t *device)
{
xmlXPathObjectPtr xpath = NULL;
int max = 0;
int lpc = 0;
if (device->agent_metadata == NULL) {
return;
}
xpath = xpath_search(device->agent_metadata, "//action");
max = numXpathResults(xpath);
if (max <= 0) {
freeXpathObject(xpath);
return;
}
for (lpc = 0; lpc < max; lpc++) {
const char *action = NULL;
xmlNode *match = getXpathResult(xpath, lpc);
CRM_LOG_ASSERT(match != NULL);
if(match == NULL) { continue; };
action = crm_element_value(match, "name");
if (pcmk__str_eq(action, "list", pcmk__str_none)) {
stonith__set_device_flags(device->flags, device->id,
st_device_supports_list);
} else if (pcmk__str_eq(action, "status", pcmk__str_none)) {
stonith__set_device_flags(device->flags, device->id,
st_device_supports_status);
} else if (pcmk__str_eq(action, "reboot", pcmk__str_none)) {
stonith__set_device_flags(device->flags, device->id,
st_device_supports_reboot);
} else if (pcmk__str_eq(action, "on", pcmk__str_none)) {
/* "automatic" means the cluster will unfence node when it joins */
/* "required" is a deprecated synonym for "automatic" */
if (pcmk__xe_attr_is_true(match, "automatic") || pcmk__xe_attr_is_true(match, "required")) {
device->automatic_unfencing = TRUE;
}
stonith__set_device_flags(device->flags, device->id,
st_device_supports_on);
}
if ((action != NULL) && pcmk__xe_attr_is_true(match, "on_target")) {
pcmk__add_word(&(device->on_target_actions), 64, action);
}
}
freeXpathObject(xpath);
}
/*!
* \internal
* \brief Set a pcmk_*_action parameter if not already set
*
* \param[in,out] params Device parameters
* \param[in] action Name of action
* \param[in] value Value to use if action is not already set
*/
static void
map_action(GHashTable *params, const char *action, const char *value)
{
char *key = crm_strdup_printf("pcmk_%s_action", action);
if (g_hash_table_lookup(params, key)) {
crm_warn("Ignoring %s='%s', see %s instead",
STONITH_ATTR_ACTION_OP, value, key);
free(key);
} else {
crm_warn("Mapping %s='%s' to %s='%s'",
STONITH_ATTR_ACTION_OP, value, key, value);
g_hash_table_insert(params, key, strdup(value));
}
}
/*!
* \internal
* \brief Create device parameter table from XML
*
* \param[in] name Device name (used for logging only)
* \param[in] dev XML containing device parameters
*/
static GHashTable *
xml2device_params(const char *name, const xmlNode *dev)
{
GHashTable *params = xml2list(dev);
const char *value;
/* Action should never be specified in the device configuration,
* but we support it for users who are familiar with other software
* that worked that way.
*/
value = g_hash_table_lookup(params, STONITH_ATTR_ACTION_OP);
if (value != NULL) {
crm_warn("%s has '%s' parameter, which should never be specified in configuration",
name, STONITH_ATTR_ACTION_OP);
if (*value == '\0') {
crm_warn("Ignoring empty '%s' parameter", STONITH_ATTR_ACTION_OP);
} else if (strcmp(value, "reboot") == 0) {
crm_warn("Ignoring %s='reboot' (see stonith-action cluster property instead)",
STONITH_ATTR_ACTION_OP);
} else if (strcmp(value, "off") == 0) {
map_action(params, "reboot", value);
} else {
map_action(params, "off", value);
map_action(params, "reboot", value);
}
g_hash_table_remove(params, STONITH_ATTR_ACTION_OP);
}
return params;
}
static const char *
target_list_type(stonith_device_t * dev)
{
const char *check_type = NULL;
check_type = g_hash_table_lookup(dev->params, PCMK_STONITH_HOST_CHECK);
if (check_type == NULL) {
if (g_hash_table_lookup(dev->params, PCMK_STONITH_HOST_LIST)) {
check_type = "static-list";
} else if (g_hash_table_lookup(dev->params, PCMK_STONITH_HOST_MAP)) {
check_type = "static-list";
} else if (pcmk_is_set(dev->flags, st_device_supports_list)) {
check_type = "dynamic-list";
} else if (pcmk_is_set(dev->flags, st_device_supports_status)) {
check_type = "status";
} else {
check_type = PCMK__VALUE_NONE;
}
}
return check_type;
}
static stonith_device_t *
build_device_from_xml(xmlNode *dev)
{
const char *value;
stonith_device_t *device = NULL;
char *agent = crm_element_value_copy(dev, "agent");
CRM_CHECK(agent != NULL, return device);
device = calloc(1, sizeof(stonith_device_t));
CRM_CHECK(device != NULL, {free(agent); return device;});
device->id = crm_element_value_copy(dev, XML_ATTR_ID);
device->agent = agent;
device->namespace = crm_element_value_copy(dev, "namespace");
device->params = xml2device_params(device->id, dev);
value = g_hash_table_lookup(device->params, PCMK_STONITH_HOST_LIST);
if (value) {
device->targets = stonith__parse_targets(value);
}
value = g_hash_table_lookup(device->params, PCMK_STONITH_HOST_MAP);
device->aliases = build_port_aliases(value, &(device->targets));
value = target_list_type(device);
if (!pcmk__str_eq(value, "static-list", pcmk__str_casei) && device->targets) {
/* Other than "static-list", dev-> targets is unnecessary. */
g_list_free_full(device->targets, free);
device->targets = NULL;
}
switch (get_agent_metadata(device->agent, &device->agent_metadata)) {
case pcmk_rc_ok:
if (device->agent_metadata) {
read_action_metadata(device);
stonith__device_parameter_flags(&(device->flags), device->id,
device->agent_metadata);
}
break;
case EAGAIN:
if (device->timer == NULL) {
device->timer = mainloop_timer_add("get_agent_metadata", 10 * 1000,
TRUE, get_agent_metadata_cb, device);
}
if (!mainloop_timer_running(device->timer)) {
mainloop_timer_start(device->timer);
}
break;
default:
break;
}
value = g_hash_table_lookup(device->params, "nodeid");
if (!value) {
device->include_nodeid = is_nodeid_required(device->agent_metadata);
}
value = crm_element_value(dev, "rsc_provides");
if (pcmk__str_eq(value, PCMK__VALUE_UNFENCING, pcmk__str_casei)) {
device->automatic_unfencing = TRUE;
}
if (is_action_required("on", device)) {
crm_info("Fencing device '%s' requires unfencing", device->id);
}
if (device->on_target_actions != NULL) {
crm_info("Fencing device '%s' requires actions (%s) to be executed "
"on target", device->id,
(const char *) device->on_target_actions->str);
}
device->work = mainloop_add_trigger(G_PRIORITY_HIGH, stonith_device_dispatch, device);
/* TODO: Hook up priority */
return device;
}
static void
schedule_internal_command(const char *origin,
stonith_device_t * device,
const char *action,
const char *target,
int timeout,
void *internal_user_data,
void (*done_cb) (int pid,
const pcmk__action_result_t *result,
void *user_data))
{
async_command_t *cmd = NULL;
cmd = calloc(1, sizeof(async_command_t));
cmd->id = -1;
cmd->default_timeout = timeout ? timeout : 60;
cmd->timeout = cmd->default_timeout;
cmd->action = strdup(action);
pcmk__str_update(&cmd->target, target);
cmd->device = strdup(device->id);
cmd->origin = strdup(origin);
cmd->client = strdup(crm_system_name);
cmd->client_name = strdup(crm_system_name);
cmd->internal_user_data = internal_user_data;
cmd->done_cb = done_cb; /* cmd, not internal_user_data, is passed to 'done_cb' as the userdata */
schedule_stonith_command(cmd, device);
}
// Fence agent status commands use custom exit status codes
enum fence_status_code {
fence_status_invalid = -1,
fence_status_active = 0,
fence_status_unknown = 1,
fence_status_inactive = 2,
};
static void
status_search_cb(int pid, const pcmk__action_result_t *result, void *user_data)
{
async_command_t *cmd = user_data;
struct device_search_s *search = cmd->internal_user_data;
stonith_device_t *dev = cmd_device(cmd);
gboolean can = FALSE;
free_async_command(cmd);
if (!dev) {
search_devices_record_result(search, NULL, FALSE);
return;
}
mainloop_set_trigger(dev->work);
if (result->execution_status != PCMK_EXEC_DONE) {
crm_warn("Assuming %s cannot fence %s "
"because status could not be executed: %s%s%s%s",
dev->id, search->host,
pcmk_exec_status_str(result->execution_status),
((result->exit_reason == NULL)? "" : " ("),
((result->exit_reason == NULL)? "" : result->exit_reason),
((result->exit_reason == NULL)? "" : ")"));
search_devices_record_result(search, dev->id, FALSE);
return;
}
switch (result->exit_status) {
case fence_status_unknown:
crm_trace("%s reported it cannot fence %s", dev->id, search->host);
break;
case fence_status_active:
case fence_status_inactive:
crm_trace("%s reported it can fence %s", dev->id, search->host);
can = TRUE;
break;
default:
crm_warn("Assuming %s cannot fence %s "
"(status returned unknown code %d)",
dev->id, search->host, result->exit_status);
break;
}
search_devices_record_result(search, dev->id, can);
}
static void
dynamic_list_search_cb(int pid, const pcmk__action_result_t *result,
void *user_data)
{
async_command_t *cmd = user_data;
struct device_search_s *search = cmd->internal_user_data;
stonith_device_t *dev = cmd_device(cmd);
gboolean can_fence = FALSE;
free_async_command(cmd);
/* Host/alias must be in the list output to be eligible to be fenced
*
* Will cause problems if down'd nodes aren't listed or (for virtual nodes)
* if the guest is still listed despite being moved to another machine
*/
if (!dev) {
search_devices_record_result(search, NULL, FALSE);
return;
}
mainloop_set_trigger(dev->work);
if (pcmk__result_ok(result)) {
crm_info("Refreshing target list for %s", dev->id);
g_list_free_full(dev->targets, free);
dev->targets = stonith__parse_targets(result->action_stdout);
dev->targets_age = time(NULL);
} else if (dev->targets != NULL) {
if (result->execution_status == PCMK_EXEC_DONE) {
crm_info("Reusing most recent target list for %s "
"because list returned error code %d",
dev->id, result->exit_status);
} else {
crm_info("Reusing most recent target list for %s "
"because list could not be executed: %s%s%s%s",
dev->id, pcmk_exec_status_str(result->execution_status),
((result->exit_reason == NULL)? "" : " ("),
((result->exit_reason == NULL)? "" : result->exit_reason),
((result->exit_reason == NULL)? "" : ")"));
}
} else { // We have never successfully executed list
if (result->execution_status == PCMK_EXEC_DONE) {
crm_warn("Assuming %s cannot fence %s "
"because list returned error code %d",
dev->id, search->host, result->exit_status);
} else {
crm_warn("Assuming %s cannot fence %s "
"because list could not be executed: %s%s%s%s",
dev->id, search->host,
pcmk_exec_status_str(result->execution_status),
((result->exit_reason == NULL)? "" : " ("),
((result->exit_reason == NULL)? "" : result->exit_reason),
((result->exit_reason == NULL)? "" : ")"));
}
/* Fall back to pcmk_host_check="status" if the user didn't explicitly
* specify "dynamic-list".
*/
if (g_hash_table_lookup(dev->params, PCMK_STONITH_HOST_CHECK) == NULL) {
crm_notice("Switching to pcmk_host_check='status' for %s", dev->id);
g_hash_table_replace(dev->params, strdup(PCMK_STONITH_HOST_CHECK),
strdup("status"));
}
}
if (dev->targets) {
const char *alias = g_hash_table_lookup(dev->aliases, search->host);
if (!alias) {
alias = search->host;
}
if (pcmk__str_in_list(alias, dev->targets, pcmk__str_casei)) {
can_fence = TRUE;
}
}
search_devices_record_result(search, dev->id, can_fence);
}
/*!
* \internal
* \brief Returns true if any key in first is not in second or second has a different value for key
*/
static int
device_params_diff(GHashTable *first, GHashTable *second) {
char *key = NULL;
char *value = NULL;
GHashTableIter gIter;
g_hash_table_iter_init(&gIter, first);
while (g_hash_table_iter_next(&gIter, (void **)&key, (void **)&value)) {
if(strstr(key, "CRM_meta") == key) {
continue;
} else if(strcmp(key, "crm_feature_set") == 0) {
continue;
} else {
char *other_value = g_hash_table_lookup(second, key);
if (!other_value || !pcmk__str_eq(other_value, value, pcmk__str_casei)) {
crm_trace("Different value for %s: %s != %s", key, other_value, value);
return 1;
}
}
}
return 0;
}
/*!
* \internal
* \brief Checks to see if an identical device already exists in the device_list
*/
static stonith_device_t *
device_has_duplicate(const stonith_device_t *device)
{
stonith_device_t *dup = g_hash_table_lookup(device_list, device->id);
if (!dup) {
crm_trace("No match for %s", device->id);
return NULL;
} else if (!pcmk__str_eq(dup->agent, device->agent, pcmk__str_casei)) {
crm_trace("Different agent: %s != %s", dup->agent, device->agent);
return NULL;
}
/* Use calculate_operation_digest() here? */
if (device_params_diff(device->params, dup->params) ||
device_params_diff(dup->params, device->params)) {
return NULL;
}
crm_trace("Match");
return dup;
}
int
stonith_device_register(xmlNode *dev, gboolean from_cib)
{
stonith_device_t *dup = NULL;
stonith_device_t *device = build_device_from_xml(dev);
guint ndevices = 0;
int rv = pcmk_ok;
CRM_CHECK(device != NULL, return -ENOMEM);
/* do we have a watchdog-device? */
if (pcmk__str_eq(device->id, STONITH_WATCHDOG_ID, pcmk__str_none) ||
pcmk__str_any_of(device->agent, STONITH_WATCHDOG_AGENT,
STONITH_WATCHDOG_AGENT_INTERNAL, NULL)) do {
if (stonith_watchdog_timeout_ms <= 0) {
crm_err("Ignoring watchdog fence device without "
"stonith-watchdog-timeout set.");
rv = -ENODEV;
/* fall through to cleanup & return */
} else if (!pcmk__str_any_of(device->agent, STONITH_WATCHDOG_AGENT,
STONITH_WATCHDOG_AGENT_INTERNAL, NULL)) {
crm_err("Ignoring watchdog fence device with unknown "
"agent '%s' unequal '" STONITH_WATCHDOG_AGENT "'.",
device->agent?device->agent:"");
rv = -ENODEV;
/* fall through to cleanup & return */
} else if (!pcmk__str_eq(device->id, STONITH_WATCHDOG_ID,
pcmk__str_none)) {
crm_err("Ignoring watchdog fence device "
"named %s !='"STONITH_WATCHDOG_ID"'.",
device->id?device->id:"");
rv = -ENODEV;
/* fall through to cleanup & return */
} else {
if (pcmk__str_eq(device->agent, STONITH_WATCHDOG_AGENT,
pcmk__str_none)) {
/* this either has an empty list or the targets
configured for watchdog-fencing
*/
g_list_free_full(stonith_watchdog_targets, free);
stonith_watchdog_targets = device->targets;
device->targets = NULL;
}
if (node_does_watchdog_fencing(stonith_our_uname)) {
g_list_free_full(device->targets, free);
device->targets = stonith__parse_targets(stonith_our_uname);
g_hash_table_replace(device->params,
strdup(PCMK_STONITH_HOST_LIST),
strdup(stonith_our_uname));
/* proceed as with any other stonith-device */
break;
}
crm_debug("Skip registration of watchdog fence device on node not in host-list.");
/* cleanup and fall through to more cleanup and return */
device->targets = NULL;
stonith_device_remove(device->id, from_cib);
}
free_device(device);
return rv;
} while (0);
dup = device_has_duplicate(device);
if (dup) {
ndevices = g_hash_table_size(device_list);
crm_debug("Device '%s' already in device list (%d active device%s)",
device->id, ndevices, pcmk__plural_s(ndevices));
free_device(device);
device = dup;
dup = g_hash_table_lookup(device_list, device->id);
dup->dirty = FALSE;
} else {
stonith_device_t *old = g_hash_table_lookup(device_list, device->id);
if (from_cib && old && old->api_registered) {
/* If the cib is writing over an entry that is shared with a stonith client,
* copy any pending ops that currently exist on the old entry to the new one.
* Otherwise the pending ops will be reported as failures
*/
crm_info("Overwriting existing entry for %s from CIB", device->id);
device->pending_ops = old->pending_ops;
device->api_registered = TRUE;
old->pending_ops = NULL;
if (device->pending_ops) {
mainloop_set_trigger(device->work);
}
}
g_hash_table_replace(device_list, device->id, device);
ndevices = g_hash_table_size(device_list);
crm_notice("Added '%s' to device list (%d active device%s)",
device->id, ndevices, pcmk__plural_s(ndevices));
}
if (from_cib) {
device->cib_registered = TRUE;
} else {
device->api_registered = TRUE;
}
return pcmk_ok;
}
void
stonith_device_remove(const char *id, bool from_cib)
{
stonith_device_t *device = g_hash_table_lookup(device_list, id);
guint ndevices = 0;
if (!device) {
ndevices = g_hash_table_size(device_list);
crm_info("Device '%s' not found (%d active device%s)",
id, ndevices, pcmk__plural_s(ndevices));
return;
}
if (from_cib) {
device->cib_registered = FALSE;
} else {
device->verified = FALSE;
device->api_registered = FALSE;
}
if (!device->cib_registered && !device->api_registered) {
g_hash_table_remove(device_list, id);
ndevices = g_hash_table_size(device_list);
crm_info("Removed '%s' from device list (%d active device%s)",
id, ndevices, pcmk__plural_s(ndevices));
} else {
crm_trace("Not removing '%s' from device list (%d active) because "
"still registered via:%s%s",
id, g_hash_table_size(device_list),
(device->cib_registered? " cib" : ""),
(device->api_registered? " api" : ""));
}
}
/*!
* \internal
* \brief Return the number of stonith levels registered for a node
*
* \param[in] tp Node's topology table entry
*
* \return Number of non-NULL levels in topology entry
* \note This function is used only for log messages.
*/
static int
count_active_levels(const stonith_topology_t *tp)
{
int lpc = 0;
int count = 0;
for (lpc = 0; lpc < ST_LEVEL_MAX; lpc++) {
if (tp->levels[lpc] != NULL) {
count++;
}
}
return count;
}
static void
free_topology_entry(gpointer data)
{
stonith_topology_t *tp = data;
int lpc = 0;
for (lpc = 0; lpc < ST_LEVEL_MAX; lpc++) {
if (tp->levels[lpc] != NULL) {
g_list_free_full(tp->levels[lpc], free);
}
}
free(tp->target);
free(tp->target_value);
free(tp->target_pattern);
free(tp->target_attribute);
free(tp);
}
void
free_topology_list(void)
{
if (topology != NULL) {
g_hash_table_destroy(topology);
topology = NULL;
}
}
void
init_topology_list(void)
{
if (topology == NULL) {
topology = pcmk__strkey_table(NULL, free_topology_entry);
}
}
char *
stonith_level_key(const xmlNode *level, enum fenced_target_by mode)
{
if (mode == fenced_target_by_unknown) {
mode = unpack_level_kind(level);
}
switch (mode) {
case fenced_target_by_name:
return crm_element_value_copy(level, XML_ATTR_STONITH_TARGET);
case fenced_target_by_pattern:
return crm_element_value_copy(level, XML_ATTR_STONITH_TARGET_PATTERN);
case fenced_target_by_attribute:
return crm_strdup_printf("%s=%s",
crm_element_value(level, XML_ATTR_STONITH_TARGET_ATTRIBUTE),
crm_element_value(level, XML_ATTR_STONITH_TARGET_VALUE));
default:
return crm_strdup_printf("unknown-%s", ID(level));
}
}
/*!
* \internal
* \brief Parse target identification from topology level XML
*
* \param[in] level Topology level XML to parse
*
* \return How to identify target of \p level
*/
static enum fenced_target_by
unpack_level_kind(const xmlNode *level)
{
if (crm_element_value(level, XML_ATTR_STONITH_TARGET) != NULL) {
return fenced_target_by_name;
}
if (crm_element_value(level, XML_ATTR_STONITH_TARGET_PATTERN) != NULL) {
return fenced_target_by_pattern;
}
if (!stand_alone /* if standalone, there's no attribute manager */
&& (crm_element_value(level, XML_ATTR_STONITH_TARGET_ATTRIBUTE) != NULL)
&& (crm_element_value(level, XML_ATTR_STONITH_TARGET_VALUE) != NULL)) {
return fenced_target_by_attribute;
}
return fenced_target_by_unknown;
}
static stonith_key_value_t *
parse_device_list(const char *devices)
{
int lpc = 0;
int max = 0;
int last = 0;
stonith_key_value_t *output = NULL;
if (devices == NULL) {
return output;
}
max = strlen(devices);
for (lpc = 0; lpc <= max; lpc++) {
if (devices[lpc] == ',' || devices[lpc] == 0) {
char *line = strndup(devices + last, lpc - last);
output = stonith_key_value_add(output, NULL, line);
free(line);
last = lpc + 1;
}
}
return output;
}
/*!
* \internal
* \brief Unpack essential information from topology request XML
*
* \param[in] xml Request XML to search
* \param[out] mode If not NULL, where to store level kind
* \param[out] target If not NULL, where to store representation of target
* \param[out] id If not NULL, where to store level number
* \param[out] desc If not NULL, where to store log-friendly level description
*
* \return Topology level XML from within \p xml, or NULL if not found
* \note The caller is responsible for freeing \p *target and \p *desc if set.
*/
static xmlNode *
unpack_level_request(xmlNode *xml, enum fenced_target_by *mode, char **target,
int *id, char **desc)
{
enum fenced_target_by local_mode = fenced_target_by_unknown;
char *local_target = NULL;
int local_id = 0;
/* The level element can be the top element or lower. If top level, don't
* search by xpath, because it might give multiple hits if the XML is the
* CIB.
*/
if ((xml != NULL)
&& !pcmk__str_eq(TYPE(xml), XML_TAG_FENCING_LEVEL, pcmk__str_none)) {
xml = get_xpath_object("//" XML_TAG_FENCING_LEVEL, xml, LOG_WARNING);
}
if (xml == NULL) {
if (desc != NULL) {
*desc = crm_strdup_printf("missing");
}
} else {
local_mode = unpack_level_kind(xml);
local_target = stonith_level_key(xml, local_mode);
crm_element_value_int(xml, XML_ATTR_STONITH_INDEX, &local_id);
if (desc != NULL) {
*desc = crm_strdup_printf("%s[%d]", local_target, local_id);
}
}
if (mode != NULL) {
*mode = local_mode;
}
if (id != NULL) {
*id = local_id;
}
if (target != NULL) {
*target = local_target;
} else {
free(local_target);
}
return xml;
}
/*!
* \internal
* \brief Register a fencing topology level for a target
*
* Given an XML request specifying the target name, level index, and device IDs
* for the level, this will create an entry for the target in the global topology
* table if one does not already exist, then append the specified device IDs to
* the entry's device list for the specified level.
*
* \param[in] msg XML request for STONITH level registration
* \param[out] desc If not NULL, set to string representation "TARGET[LEVEL]"
* \param[out] result Where to set result of registration
*/
void
fenced_register_level(xmlNode *msg, char **desc, pcmk__action_result_t *result)
{
int id = 0;
xmlNode *level;
enum fenced_target_by mode;
char *target;
stonith_topology_t *tp;
stonith_key_value_t *dIter = NULL;
stonith_key_value_t *devices = NULL;
CRM_CHECK((msg != NULL) && (result != NULL), return);
level = unpack_level_request(msg, &mode, &target, &id, desc);
if (level == NULL) {
fenced_set_protocol_error(result);
return;
}
// Ensure an ID was given (even the client API adds an ID)
if (pcmk__str_empty(ID(level))) {
crm_warn("Ignoring registration for topology level without ID");
free(target);
crm_log_xml_trace(level, "Bad level");
pcmk__format_result(result, CRM_EX_INVALID_PARAM, PCMK_EXEC_INVALID,
"Topology level is invalid without ID");
return;
}
// Ensure a valid target was specified
if (mode == fenced_target_by_unknown) {
crm_warn("Ignoring registration for topology level '%s' "
"without valid target", ID(level));
free(target);
crm_log_xml_trace(level, "Bad level");
pcmk__format_result(result, CRM_EX_INVALID_PARAM, PCMK_EXEC_INVALID,
"Invalid target for topology level '%s'",
ID(level));
return;
}
// Ensure level ID is in allowed range
if ((id <= 0) || (id >= ST_LEVEL_MAX)) {
crm_warn("Ignoring topology registration for %s with invalid level %d",
target, id);
free(target);
crm_log_xml_trace(level, "Bad level");
pcmk__format_result(result, CRM_EX_INVALID_PARAM, PCMK_EXEC_INVALID,
"Invalid level number '%s' for topology level '%s'",
pcmk__s(crm_element_value(level,
XML_ATTR_STONITH_INDEX),
""),
ID(level));
return;
}
/* Find or create topology table entry */
tp = g_hash_table_lookup(topology, target);
if (tp == NULL) {
tp = calloc(1, sizeof(stonith_topology_t));
if (tp == NULL) {
pcmk__set_result(result, CRM_EX_ERROR, PCMK_EXEC_ERROR,
strerror(ENOMEM));
free(target);
return;
}
tp->kind = mode;
tp->target = target;
tp->target_value = crm_element_value_copy(level, XML_ATTR_STONITH_TARGET_VALUE);
tp->target_pattern = crm_element_value_copy(level, XML_ATTR_STONITH_TARGET_PATTERN);
tp->target_attribute = crm_element_value_copy(level, XML_ATTR_STONITH_TARGET_ATTRIBUTE);
g_hash_table_replace(topology, tp->target, tp);
crm_trace("Added %s (%d) to the topology (%d active entries)",
target, (int) mode, g_hash_table_size(topology));
} else {
free(target);
}
if (tp->levels[id] != NULL) {
crm_info("Adding to the existing %s[%d] topology entry",
tp->target, id);
}
devices = parse_device_list(crm_element_value(level, XML_ATTR_STONITH_DEVICES));
for (dIter = devices; dIter; dIter = dIter->next) {
const char *device = dIter->value;
crm_trace("Adding device '%s' for %s[%d]", device, tp->target, id);
tp->levels[id] = g_list_append(tp->levels[id], strdup(device));
}
stonith_key_value_freeall(devices, 1, 1);
{
int nlevels = count_active_levels(tp);
crm_info("Target %s has %d active fencing level%s",
tp->target, nlevels, pcmk__plural_s(nlevels));
}
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
}
/*!
* \internal
* \brief Unregister a fencing topology level for a target
*
* Given an XML request specifying the target name and level index (or 0 for all
* levels), this will remove any corresponding entry for the target from the
* global topology table.
*
* \param[in] msg XML request for STONITH level registration
* \param[out] desc If not NULL, set to string representation "TARGET[LEVEL]"
* \param[out] result Where to set result of unregistration
*/
void
fenced_unregister_level(xmlNode *msg, char **desc,
pcmk__action_result_t *result)
{
int id = -1;
stonith_topology_t *tp;
char *target;
xmlNode *level = NULL;
CRM_CHECK(result != NULL, return);
level = unpack_level_request(msg, NULL, &target, &id, desc);
if (level == NULL) {
fenced_set_protocol_error(result);
return;
}
// Ensure level ID is in allowed range
if ((id < 0) || (id >= ST_LEVEL_MAX)) {
crm_warn("Ignoring topology unregistration for %s with invalid level %d",
target, id);
free(target);
crm_log_xml_trace(level, "Bad level");
pcmk__format_result(result, CRM_EX_INVALID_PARAM, PCMK_EXEC_INVALID,
"Invalid level number '%s' for topology level %s",
pcmk__s(crm_element_value(level,
XML_ATTR_STONITH_INDEX),
"<null>"),
// Client API doesn't add ID to unregistration XML
pcmk__s(ID(level), ""));
return;
}
tp = g_hash_table_lookup(topology, target);
if (tp == NULL) {
guint nentries = g_hash_table_size(topology);
crm_info("No fencing topology found for %s (%d active %s)",
target, nentries,
pcmk__plural_alt(nentries, "entry", "entries"));
} else if (id == 0 && g_hash_table_remove(topology, target)) {
guint nentries = g_hash_table_size(topology);
crm_info("Removed all fencing topology entries related to %s "
"(%d active %s remaining)", target, nentries,
pcmk__plural_alt(nentries, "entry", "entries"));
} else if (tp->levels[id] != NULL) {
guint nlevels;
g_list_free_full(tp->levels[id], free);
tp->levels[id] = NULL;
nlevels = count_active_levels(tp);
crm_info("Removed level %d from fencing topology for %s "
"(%d active level%s remaining)",
id, target, nlevels, pcmk__plural_s(nlevels));
}
free(target);
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
}
static char *
list_to_string(GList *list, const char *delim, gboolean terminate_with_delim)
{
int max = g_list_length(list);
size_t delim_len = delim?strlen(delim):0;
size_t alloc_size = 1 + (max?((max-1+(terminate_with_delim?1:0))*delim_len):0);
char *rv;
GList *gIter;
for (gIter = list; gIter != NULL; gIter = gIter->next) {
const char *value = (const char *) gIter->data;
alloc_size += strlen(value);
}
rv = calloc(alloc_size, sizeof(char));
if (rv) {
char *pos = rv;
const char *lead_delim = "";
for (gIter = list; gIter != NULL; gIter = gIter->next) {
const char *value = (const char *) gIter->data;
pos = &pos[sprintf(pos, "%s%s", lead_delim, value)];
lead_delim = delim;
}
if (max && terminate_with_delim) {
sprintf(pos, "%s", delim);
}
}
return rv;
}
/*!
* \internal
* \brief Execute a fence agent action directly (and asynchronously)
*
* Handle a STONITH_OP_EXEC API message by scheduling a requested agent action
* directly on a specified device. Only list, monitor, and status actions are
* expected to use this call, though it should work with any agent command.
*
* \param[in] msg Request XML specifying action
* \param[out] result Where to store result of action
*
* \note If the action is monitor, the device must be registered via the API
* (CIB registration is not sufficient), because monitor should not be
* possible unless the device is "started" (API registered).
*/
static void
execute_agent_action(xmlNode *msg, pcmk__action_result_t *result)
{
xmlNode *dev = get_xpath_object("//" F_STONITH_DEVICE, msg, LOG_ERR);
xmlNode *op = get_xpath_object("//@" F_STONITH_ACTION, msg, LOG_ERR);
const char *id = crm_element_value(dev, F_STONITH_DEVICE);
const char *action = crm_element_value(op, F_STONITH_ACTION);
async_command_t *cmd = NULL;
stonith_device_t *device = NULL;
if ((id == NULL) || (action == NULL)) {
crm_info("Malformed API action request: device %s, action %s",
(id? id : "not specified"),
(action? action : "not specified"));
fenced_set_protocol_error(result);
return;
}
if (pcmk__str_eq(id, STONITH_WATCHDOG_ID, pcmk__str_none)) {
// Watchdog agent actions are implemented internally
if (stonith_watchdog_timeout_ms <= 0) {
pcmk__set_result(result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"Watchdog fence device not configured");
return;
} else if (pcmk__str_eq(action, "list", pcmk__str_none)) {
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
pcmk__set_result_output(result,
list_to_string(stonith_watchdog_targets,
"\n", TRUE),
NULL);
return;
} else if (pcmk__str_eq(action, "monitor", pcmk__str_none)) {
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
return;
}
}
device = g_hash_table_lookup(device_list, id);
if (device == NULL) {
crm_info("Ignoring API '%s' action request because device %s not found",
action, id);
pcmk__format_result(result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"'%s' not found", id);
return;
} else if (!device->api_registered && !strcmp(action, "monitor")) {
// Monitors may run only on "started" (API-registered) devices
crm_info("Ignoring API '%s' action request because device %s not active",
action, id);
pcmk__format_result(result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"'%s' not active", id);
return;
}
cmd = create_async_command(msg);
if (cmd == NULL) {
crm_log_xml_warn(msg, "invalid");
fenced_set_protocol_error(result);
return;
}
schedule_stonith_command(cmd, device);
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_PENDING, NULL);
}
static void
search_devices_record_result(struct device_search_s *search, const char *device, gboolean can_fence)
{
search->replies_received++;
if (can_fence && device) {
if (search->support_action_only != st_device_supports_none) {
stonith_device_t *dev = g_hash_table_lookup(device_list, device);
if (dev && !pcmk_is_set(dev->flags, search->support_action_only)) {
return;
}
}
search->capable = g_list_append(search->capable, strdup(device));
}
if (search->replies_needed == search->replies_received) {
guint ndevices = g_list_length(search->capable);
crm_debug("Search found %d device%s that can perform '%s' targeting %s",
ndevices, pcmk__plural_s(ndevices),
(search->action? search->action : "unknown action"),
(search->host? search->host : "any node"));
search->callback(search->capable, search->user_data);
free(search->host);
free(search->action);
free(search);
}
}
/*!
* \internal
* \brief Check whether the local host is allowed to execute a fencing action
*
* \param[in] device Fence device to check
* \param[in] action Fence action to check
* \param[in] target Hostname of fence target
* \param[in] allow_suicide Whether self-fencing is allowed for this operation
*
* \return TRUE if local host is allowed to execute action, FALSE otherwise
*/
static gboolean
localhost_is_eligible(const stonith_device_t *device, const char *action,
const char *target, gboolean allow_suicide)
{
gboolean localhost_is_target = pcmk__str_eq(target, stonith_our_uname,
pcmk__str_casei);
if ((device != NULL) && (action != NULL)
&& (device->on_target_actions != NULL)
&& (strstr((const char*) device->on_target_actions->str,
action) != NULL)) {
if (!localhost_is_target) {
crm_trace("Operation '%s' using %s can only be executed for local "
"host, not %s", action, device->id, target);
return FALSE;
}
} else if (localhost_is_target && !allow_suicide) {
crm_trace("'%s' operation does not support self-fencing", action);
return FALSE;
}
return TRUE;
}
/*!
* \internal
* \brief Check if local node is allowed to execute (possibly remapped) action
*
* \param[in] device Fence device to check
* \param[in] action Fence action to check
* \param[in] target Node name of fence target
* \param[in] allow_self Whether self-fencing is allowed for this operation
*
* \return true if local node is allowed to execute \p action or any actions it
* might be remapped to, otherwise false
*/
static bool
localhost_is_eligible_with_remap(const stonith_device_t *device,
const char *action, const char *target,
gboolean allow_self)
{
// Check exact action
if (localhost_is_eligible(device, action, target, allow_self)) {
return true;
}
// Check potential remaps
if (pcmk__str_eq(action, "reboot", pcmk__str_none)) {
/* "reboot" might get remapped to "off" then "on", so even if reboot is
* disallowed, return true if either of those is allowed. We'll report
* the disallowed actions with the results. We never allow self-fencing
* for remapped "on" actions because the target is off at that point.
*/
if (localhost_is_eligible(device, "off", target, allow_self)
|| localhost_is_eligible(device, "on", target, FALSE)) {
return true;
}
}
return false;
}
static void
can_fence_host_with_device(stonith_device_t *dev,
struct device_search_s *search)
{
gboolean can = FALSE;
const char *check_type = "Internal bug";
const char *target = NULL;
const char *alias = NULL;
const char *dev_id = "Unspecified device";
const char *action = (search == NULL)? NULL : search->action;
CRM_CHECK((dev != NULL) && (action != NULL), goto search_report_results);
if (dev->id != NULL) {
dev_id = dev->id;
}
target = search->host;
if (target == NULL) {
can = TRUE;
check_type = "No target";
goto search_report_results;
}
/* Answer immediately if the device does not support the action
* or the local node is not allowed to perform it
*/
if (pcmk__str_eq(action, "on", pcmk__str_none)
&& !pcmk_is_set(dev->flags, st_device_supports_on)) {
check_type = "Agent does not support 'on'";
goto search_report_results;
} else if (!localhost_is_eligible_with_remap(dev, action, target,
search->allow_suicide)) {
check_type = "This node is not allowed to execute action";
goto search_report_results;
}
// Check eligibility as specified by pcmk_host_check
check_type = target_list_type(dev);
alias = g_hash_table_lookup(dev->aliases, target);
if (pcmk__str_eq(check_type, PCMK__VALUE_NONE, pcmk__str_casei)) {
can = TRUE;
} else if (pcmk__str_eq(check_type, "static-list", pcmk__str_casei)) {
if (pcmk__str_in_list(target, dev->targets, pcmk__str_casei)) {
can = TRUE;
} else if (g_hash_table_lookup(dev->params, PCMK_STONITH_HOST_MAP)
&& g_hash_table_lookup(dev->aliases, target)) {
can = TRUE;
}
} else if (pcmk__str_eq(check_type, "dynamic-list", pcmk__str_casei)) {
time_t now = time(NULL);
if (dev->targets == NULL || dev->targets_age + 60 < now) {
int device_timeout = get_action_timeout(dev, "list", search->per_device_timeout);
if (device_timeout > search->per_device_timeout) {
crm_notice("Since the pcmk_list_timeout(%ds) parameter of %s is larger than stonith-timeout(%ds), timeout may occur",
device_timeout, dev_id, search->per_device_timeout);
}
crm_trace("Running '%s' to check whether %s is eligible to fence %s (%s)",
check_type, dev_id, target, action);
schedule_internal_command(__func__, dev, "list", NULL,
search->per_device_timeout, search, dynamic_list_search_cb);
/* we'll respond to this search request async in the cb */
return;
}
if (pcmk__str_in_list(((alias == NULL)? target : alias), dev->targets,
pcmk__str_casei)) {
can = TRUE;
}
} else if (pcmk__str_eq(check_type, "status", pcmk__str_casei)) {
int device_timeout = get_action_timeout(dev, check_type, search->per_device_timeout);
if (device_timeout > search->per_device_timeout) {
crm_notice("Since the pcmk_status_timeout(%ds) parameter of %s is larger than stonith-timeout(%ds), timeout may occur",
device_timeout, dev_id, search->per_device_timeout);
}
crm_trace("Running '%s' to check whether %s is eligible to fence %s (%s)",
check_type, dev_id, target, action);
schedule_internal_command(__func__, dev, "status", target,
search->per_device_timeout, search, status_search_cb);
/* we'll respond to this search request async in the cb */
return;
} else {
crm_err("Invalid value for " PCMK_STONITH_HOST_CHECK ": %s", check_type);
check_type = "Invalid " PCMK_STONITH_HOST_CHECK;
}
search_report_results:
crm_info("%s is%s eligible to fence (%s) %s%s%s%s: %s",
dev_id, (can? "" : " not"), pcmk__s(action, "unspecified action"),
pcmk__s(target, "unspecified target"),
(alias == NULL)? "" : " (as '", pcmk__s(alias, ""),
(alias == NULL)? "" : "')", check_type);
search_devices_record_result(search, ((dev == NULL)? NULL : dev_id), can);
}
static void
search_devices(gpointer key, gpointer value, gpointer user_data)
{
stonith_device_t *dev = value;
struct device_search_s *search = user_data;
can_fence_host_with_device(dev, search);
}
#define DEFAULT_QUERY_TIMEOUT 20
static void
get_capable_devices(const char *host, const char *action, int timeout, bool suicide, void *user_data,
void (*callback) (GList * devices, void *user_data), uint32_t support_action_only)
{
struct device_search_s *search;
guint ndevices = g_hash_table_size(device_list);
if (ndevices == 0) {
callback(NULL, user_data);
return;
}
search = calloc(1, sizeof(struct device_search_s));
if (!search) {
crm_crit("Cannot search for capable fence devices: %s",
strerror(ENOMEM));
callback(NULL, user_data);
return;
}
pcmk__str_update(&search->host, host);
pcmk__str_update(&search->action, action);
search->per_device_timeout = timeout;
search->allow_suicide = suicide;
search->callback = callback;
search->user_data = user_data;
search->support_action_only = support_action_only;
/* We are guaranteed this many replies, even if a device is
* unregistered while the search is in progress.
*/
search->replies_needed = ndevices;
crm_debug("Searching %d device%s to see which can execute '%s' targeting %s",
ndevices, pcmk__plural_s(ndevices),
(search->action? search->action : "unknown action"),
(search->host? search->host : "any node"));
g_hash_table_foreach(device_list, search_devices, search);
}
struct st_query_data {
xmlNode *reply;
char *remote_peer;
char *client_id;
char *target;
char *action;
int call_options;
};
/*!
* \internal
* \brief Add action-specific attributes to query reply XML
*
* \param[in,out] xml XML to add attributes to
* \param[in] action Fence action
* \param[in] device Fence device
* \param[in] target Fence target
*/
static void
add_action_specific_attributes(xmlNode *xml, const char *action,
const stonith_device_t *device,
const char *target)
{
int action_specific_timeout;
int delay_max;
int delay_base;
CRM_CHECK(xml && action && device, return);
if (is_action_required(action, device)) {
crm_trace("Action '%s' is required using %s", action, device->id);
crm_xml_add_int(xml, F_STONITH_DEVICE_REQUIRED, 1);
}
action_specific_timeout = get_action_timeout(device, action, 0);
if (action_specific_timeout) {
crm_trace("Action '%s' has timeout %dms using %s",
action, action_specific_timeout, device->id);
crm_xml_add_int(xml, F_STONITH_ACTION_TIMEOUT, action_specific_timeout);
}
delay_max = get_action_delay_max(device, action);
if (delay_max > 0) {
- crm_trace("Action '%s' has maximum random delay %dms using %s",
+ crm_trace("Action '%s' has maximum random delay %ds using %s",
action, delay_max, device->id);
- crm_xml_add_int(xml, F_STONITH_DELAY_MAX, delay_max / 1000);
+ crm_xml_add_int(xml, F_STONITH_DELAY_MAX, delay_max);
}
delay_base = get_action_delay_base(device, action, target);
if (delay_base > 0) {
- crm_xml_add_int(xml, F_STONITH_DELAY_BASE, delay_base / 1000);
+ crm_xml_add_int(xml, F_STONITH_DELAY_BASE, delay_base);
}
if ((delay_max > 0) && (delay_base == 0)) {
- crm_trace("Action '%s' has maximum random delay %dms using %s",
+ crm_trace("Action '%s' has maximum random delay %ds using %s",
action, delay_max, device->id);
} else if ((delay_max == 0) && (delay_base > 0)) {
- crm_trace("Action '%s' has a static delay of %dms using %s",
+ crm_trace("Action '%s' has a static delay of %ds using %s",
action, delay_base, device->id);
} else if ((delay_max > 0) && (delay_base > 0)) {
- crm_trace("Action '%s' has a minimum delay of %dms and a randomly chosen "
- "maximum delay of %dms using %s",
+ crm_trace("Action '%s' has a minimum delay of %ds and a randomly chosen "
+ "maximum delay of %ds using %s",
action, delay_base, delay_max, device->id);
}
}
/*!
* \internal
* \brief Add "disallowed" attribute to query reply XML if appropriate
*
* \param[in,out] xml XML to add attribute to
* \param[in] action Fence action
* \param[in] device Fence device
* \param[in] target Fence target
* \param[in] allow_suicide Whether self-fencing is allowed
*/
static void
add_disallowed(xmlNode *xml, const char *action, const stonith_device_t *device,
const char *target, gboolean allow_suicide)
{
if (!localhost_is_eligible(device, action, target, allow_suicide)) {
crm_trace("Action '%s' using %s is disallowed for local host",
action, device->id);
pcmk__xe_set_bool_attr(xml, F_STONITH_ACTION_DISALLOWED, true);
}
}
/*!
* \internal
* \brief Add child element with action-specific values to query reply XML
*
* \param[in,out] xml XML to add attribute to
* \param[in] action Fence action
* \param[in] device Fence device
* \param[in] target Fence target
* \param[in] allow_suicide Whether self-fencing is allowed
*/
static void
add_action_reply(xmlNode *xml, const char *action,
const stonith_device_t *device, const char *target,
gboolean allow_suicide)
{
xmlNode *child = create_xml_node(xml, F_STONITH_ACTION);
crm_xml_add(child, XML_ATTR_ID, action);
add_action_specific_attributes(child, action, device, target);
add_disallowed(child, action, device, target, allow_suicide);
}
static void
stonith_query_capable_device_cb(GList * devices, void *user_data)
{
struct st_query_data *query = user_data;
int available_devices = 0;
xmlNode *dev = NULL;
xmlNode *list = NULL;
GList *lpc = NULL;
pcmk__client_t *client = NULL;
if (query->client_id != NULL) {
client = pcmk__find_client_by_id(query->client_id);
if ((client == NULL) && (query->remote_peer == NULL)) {
crm_trace("Skipping reply to %s: no longer a client",
query->client_id);
goto done;
}
}
/* Pack the results into XML */
list = create_xml_node(NULL, __func__);
crm_xml_add(list, F_STONITH_TARGET, query->target);
for (lpc = devices; lpc != NULL; lpc = lpc->next) {
stonith_device_t *device = g_hash_table_lookup(device_list, lpc->data);
const char *action = query->action;
if (!device) {
/* It is possible the device got unregistered while
* determining who can fence the target */
continue;
}
available_devices++;
dev = create_xml_node(list, F_STONITH_DEVICE);
crm_xml_add(dev, XML_ATTR_ID, device->id);
crm_xml_add(dev, "namespace", device->namespace);
crm_xml_add(dev, "agent", device->agent);
crm_xml_add_int(dev, F_STONITH_DEVICE_VERIFIED, device->verified);
crm_xml_add_int(dev, F_STONITH_DEVICE_SUPPORT_FLAGS, device->flags);
/* If the originating fencer wants to reboot the node, and we have a
* capable device that doesn't support "reboot", remap to "off" instead.
*/
if (!pcmk_is_set(device->flags, st_device_supports_reboot)
&& pcmk__str_eq(query->action, "reboot", pcmk__str_none)) {
crm_trace("%s doesn't support reboot, using values for off instead",
device->id);
action = "off";
}
/* Add action-specific values if available */
add_action_specific_attributes(dev, action, device, query->target);
if (pcmk__str_eq(query->action, "reboot", pcmk__str_none)) {
/* A "reboot" *might* get remapped to "off" then "on", so after
* sending the "reboot"-specific values in the main element, we add
* sub-elements for "off" and "on" values.
*
* We short-circuited earlier if "reboot", "off" and "on" are all
* disallowed for the local host. However if only one or two are
* disallowed, we send back the results and mark which ones are
* disallowed. If "reboot" is disallowed, this might cause problems
* with older fencer versions, which won't check for it. Older
* versions will ignore "off" and "on", so they are not a problem.
*/
add_disallowed(dev, action, device, query->target,
pcmk_is_set(query->call_options, st_opt_allow_suicide));
add_action_reply(dev, "off", device, query->target,
pcmk_is_set(query->call_options, st_opt_allow_suicide));
add_action_reply(dev, "on", device, query->target, FALSE);
}
/* A query without a target wants device parameters */
if (query->target == NULL) {
xmlNode *attrs = create_xml_node(dev, XML_TAG_ATTRS);
g_hash_table_foreach(device->params, hash2field, attrs);
}
}
crm_xml_add_int(list, F_STONITH_AVAILABLE_DEVICES, available_devices);
if (query->target) {
crm_debug("Found %d matching device%s for target '%s'",
available_devices, pcmk__plural_s(available_devices),
query->target);
} else {
crm_debug("%d device%s installed",
available_devices, pcmk__plural_s(available_devices));
}
if (list != NULL) {
crm_log_xml_trace(list, "Add query results");
add_message_xml(query->reply, F_STONITH_CALLDATA, list);
}
stonith_send_reply(query->reply, query->call_options, query->remote_peer,
client);
done:
free_xml(query->reply);
free(query->remote_peer);
free(query->client_id);
free(query->target);
free(query->action);
free(query);
free_xml(list);
g_list_free_full(devices, free);
}
/*!
* \internal
* \brief Log the result of an asynchronous command
*
* \param[in] cmd Command the result is for
* \param[in] result Result of command
* \param[in] pid Process ID of command, if available
* \param[in] next Alternate device that will be tried if command failed
* \param[in] op_merged Whether this command was merged with an earlier one
*/
static void
log_async_result(const async_command_t *cmd,
const pcmk__action_result_t *result,
int pid, const char *next, bool op_merged)
{
int log_level = LOG_ERR;
int output_log_level = LOG_NEVER;
guint devices_remaining = g_list_length(cmd->next_device_iter);
GString *msg = g_string_sized_new(80); // Reasonable starting size
// Choose log levels appropriately if we have a result
if (pcmk__result_ok(result)) {
log_level = (cmd->target == NULL)? LOG_DEBUG : LOG_NOTICE;
if ((result->action_stdout != NULL)
&& !pcmk__str_eq(cmd->action, "metadata", pcmk__str_none)) {
output_log_level = LOG_DEBUG;
}
next = NULL;
} else {
log_level = (cmd->target == NULL)? LOG_NOTICE : LOG_ERR;
if ((result->action_stdout != NULL)
&& !pcmk__str_eq(cmd->action, "metadata", pcmk__str_none)) {
output_log_level = LOG_WARNING;
}
}
// Build the log message piece by piece
pcmk__g_strcat(msg, "Operation '", cmd->action, "' ", NULL);
if (pid != 0) {
g_string_append_printf(msg, "[%d] ", pid);
}
if (cmd->target != NULL) {
pcmk__g_strcat(msg, "targeting ", cmd->target, " ", NULL);
}
if (cmd->device != NULL) {
pcmk__g_strcat(msg, "using ", cmd->device, " ", NULL);
}
// Add exit status or execution status as appropriate
if (result->execution_status == PCMK_EXEC_DONE) {
g_string_append_printf(msg, "returned %d", result->exit_status);
} else {
pcmk__g_strcat(msg, "could not be executed: ",
pcmk_exec_status_str(result->execution_status), NULL);
}
// Add exit reason and next device if appropriate
if (result->exit_reason != NULL) {
pcmk__g_strcat(msg, " (", result->exit_reason, ")", NULL);
}
if (next != NULL) {
pcmk__g_strcat(msg, ", retrying with ", next, NULL);
}
if (devices_remaining > 0) {
g_string_append_printf(msg, " (%u device%s remaining)",
(unsigned int) devices_remaining,
pcmk__plural_s(devices_remaining));
}
g_string_append_printf(msg, " " CRM_XS " %scall %d from %s",
(op_merged? "merged " : ""), cmd->id,
cmd->client_name);
// Log the result
do_crm_log(log_level, "%s", msg->str);
g_string_free(msg, TRUE);
// Log the output (which may have multiple lines), if appropriate
if (output_log_level != LOG_NEVER) {
char *prefix = crm_strdup_printf("%s[%d]", cmd->device, pid);
crm_log_output(output_log_level, prefix, result->action_stdout);
free(prefix);
}
}
/*!
* \internal
* \brief Reply to requester after asynchronous command completion
*
* \param[in] cmd Command that completed
* \param[in] result Result of command
* \param[in] pid Process ID of command, if available
* \param[in] merged If true, command was merged with another, not executed
*/
static void
send_async_reply(const async_command_t *cmd, const pcmk__action_result_t *result,
int pid, bool merged)
{
xmlNode *reply = NULL;
pcmk__client_t *client = NULL;
CRM_CHECK((cmd != NULL) && (result != NULL), return);
log_async_result(cmd, result, pid, NULL, merged);
if (cmd->client != NULL) {
client = pcmk__find_client_by_id(cmd->client);
if ((client == NULL) && (cmd->origin == NULL)) {
crm_trace("Skipping reply to %s: no longer a client", cmd->client);
return;
}
}
reply = construct_async_reply(cmd, result);
if (merged) {
pcmk__xe_set_bool_attr(reply, F_STONITH_MERGED, true);
}
if (!stand_alone && pcmk__is_fencing_action(cmd->action)
&& pcmk__str_eq(cmd->origin, cmd->target, pcmk__str_casei)) {
/* The target was also the originator, so broadcast the result on its
* behalf (since it will be unable to).
*/
crm_trace("Broadcast '%s' result for %s (target was also originator)",
cmd->action, cmd->target);
crm_xml_add(reply, F_SUBTYPE, "broadcast");
crm_xml_add(reply, F_STONITH_OPERATION, T_STONITH_NOTIFY);
send_cluster_message(NULL, crm_msg_stonith_ng, reply, FALSE);
} else {
// Reply only to the originator
stonith_send_reply(reply, cmd->options, cmd->origin, client);
}
crm_log_xml_trace(reply, "Reply");
free_xml(reply);
if (stand_alone) {
/* Do notification with a clean data object */
xmlNode *notify_data = create_xml_node(NULL, T_STONITH_NOTIFY_FENCE);
stonith__xe_set_result(notify_data, result);
crm_xml_add(notify_data, F_STONITH_TARGET, cmd->target);
crm_xml_add(notify_data, F_STONITH_OPERATION, cmd->op);
crm_xml_add(notify_data, F_STONITH_DELEGATE, "localhost");
crm_xml_add(notify_data, F_STONITH_DEVICE, cmd->device);
crm_xml_add(notify_data, F_STONITH_REMOTE_OP_ID, cmd->remote_op_id);
crm_xml_add(notify_data, F_STONITH_ORIGIN, cmd->client);
fenced_send_notification(T_STONITH_NOTIFY_FENCE, result, notify_data);
fenced_send_notification(T_STONITH_NOTIFY_HISTORY, NULL, NULL);
}
}
static void
cancel_stonith_command(async_command_t * cmd)
{
stonith_device_t *device = cmd_device(cmd);
if (device) {
crm_trace("Cancel scheduled '%s' action using %s",
cmd->action, device->id);
device->pending_ops = g_list_remove(device->pending_ops, cmd);
}
}
/*!
* \internal
* \brief Cancel and reply to any duplicates of a just-completed operation
*
* Check whether any fencing operations are scheduled to do the same thing as
* one that just succeeded. If so, rather than performing the same operation
* twice, return the result of this operation for all matching pending commands.
*
* \param[in,out] cmd Fencing operation that just succeeded
* \param[in] result Result of \p cmd
* \param[in] pid If nonzero, process ID of agent invocation (for logs)
*
* \note Duplicate merging will do the right thing for either type of remapped
* reboot. If the executing fencer remapped an unsupported reboot to off,
* then cmd->action will be "reboot" and will be merged with any other
* reboot requests. If the originating fencer remapped a topology reboot
* to off then on, we will get here once with cmd->action "off" and once
* with "on", and they will be merged separately with similar requests.
*/
static void
reply_to_duplicates(async_command_t *cmd, const pcmk__action_result_t *result,
int pid)
{
GList *next = NULL;
for (GList *iter = cmd_list; iter != NULL; iter = next) {
async_command_t *cmd_other = iter->data;
next = iter->next; // We might delete this entry, so grab next now
if (cmd == cmd_other) {
continue;
}
/* A pending operation matches if:
* 1. The client connections are different.
* 2. The target is the same.
* 3. The fencing action is the same.
* 4. The device scheduled to execute the action is the same.
*/
if (pcmk__str_eq(cmd->client, cmd_other->client, pcmk__str_casei) ||
!pcmk__str_eq(cmd->target, cmd_other->target, pcmk__str_casei) ||
!pcmk__str_eq(cmd->action, cmd_other->action, pcmk__str_none) ||
!pcmk__str_eq(cmd->device, cmd_other->device, pcmk__str_casei)) {
continue;
}
crm_notice("Merging fencing action '%s'%s%s originating from "
"client %s with identical fencing request from client %s",
cmd_other->action,
(cmd_other->target == NULL)? "" : " targeting ",
pcmk__s(cmd_other->target, ""), cmd_other->client_name,
cmd->client_name);
// Stop tracking the duplicate, send its result, and cancel it
cmd_list = g_list_remove_link(cmd_list, iter);
send_async_reply(cmd_other, result, pid, true);
cancel_stonith_command(cmd_other);
free_async_command(cmd_other);
g_list_free_1(iter);
}
}
/*!
* \internal
* \brief Return the next required device (if any) for an operation
*
* \param[in,out] cmd Fencing operation that just succeeded
*
* \return Next device required for action if any, otherwise NULL
*/
static stonith_device_t *
next_required_device(async_command_t *cmd)
{
for (GList *iter = cmd->next_device_iter; iter != NULL; iter = iter->next) {
stonith_device_t *next_device = g_hash_table_lookup(device_list,
iter->data);
if (is_action_required(cmd->action, next_device)) {
/* This is only called for successful actions, so it's OK to skip
* non-required devices.
*/
cmd->next_device_iter = iter->next;
return next_device;
}
}
return NULL;
}
static void
st_child_done(int pid, const pcmk__action_result_t *result, void *user_data)
{
async_command_t *cmd = user_data;
stonith_device_t *device = NULL;
stonith_device_t *next_device = NULL;
CRM_CHECK(cmd != NULL, return);
device = cmd_device(cmd);
cmd->active_on = NULL;
/* The device is ready to do something else now */
if (device) {
if (!device->verified && pcmk__result_ok(result) &&
(pcmk__strcase_any_of(cmd->action, "list", "monitor", "status", NULL))) {
device->verified = TRUE;
}
mainloop_set_trigger(device->work);
}
if (pcmk__result_ok(result)) {
next_device = next_required_device(cmd);
} else if ((cmd->next_device_iter != NULL)
&& !is_action_required(cmd->action, device)) {
/* if this device didn't work out, see if there are any others we can try.
* if the failed device was 'required', we can't pick another device. */
next_device = g_hash_table_lookup(device_list,
cmd->next_device_iter->data);
cmd->next_device_iter = cmd->next_device_iter->next;
}
if (next_device == NULL) {
send_async_reply(cmd, result, pid, false);
if (pcmk__result_ok(result)) {
reply_to_duplicates(cmd, result, pid);
}
free_async_command(cmd);
} else { // This operation requires more fencing
log_async_result(cmd, result, pid, next_device->id, false);
schedule_stonith_command(cmd, next_device);
}
}
static gint
sort_device_priority(gconstpointer a, gconstpointer b)
{
const stonith_device_t *dev_a = a;
const stonith_device_t *dev_b = b;
if (dev_a->priority > dev_b->priority) {
return -1;
} else if (dev_a->priority < dev_b->priority) {
return 1;
}
return 0;
}
static void
stonith_fence_get_devices_cb(GList * devices, void *user_data)
{
async_command_t *cmd = user_data;
stonith_device_t *device = NULL;
guint ndevices = g_list_length(devices);
crm_info("Found %d matching device%s for target '%s'",
ndevices, pcmk__plural_s(ndevices), cmd->target);
if (devices != NULL) {
/* Order based on priority */
devices = g_list_sort(devices, sort_device_priority);
device = g_hash_table_lookup(device_list, devices->data);
}
if (device == NULL) { // No device found
pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
pcmk__format_result(&result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"No device configured for target '%s'",
cmd->target);
send_async_reply(cmd, &result, 0, false);
pcmk__reset_result(&result);
free_async_command(cmd);
g_list_free_full(devices, free);
} else { // Device found, schedule it for fencing
cmd->device_list = devices;
cmd->next_device_iter = devices->next;
schedule_stonith_command(cmd, device);
}
}
/*!
* \internal
* \brief Execute a fence action via the local node
*
* \param[in] msg Fencing request
* \param[out] result Where to store result of fence action
*/
static void
fence_locally(xmlNode *msg, pcmk__action_result_t *result)
{
const char *device_id = NULL;
stonith_device_t *device = NULL;
async_command_t *cmd = NULL;
xmlNode *dev = NULL;
CRM_CHECK((msg != NULL) && (result != NULL), return);
dev = get_xpath_object("//@" F_STONITH_TARGET, msg, LOG_ERR);
cmd = create_async_command(msg);
if (cmd == NULL) {
crm_log_xml_warn(msg, "invalid");
fenced_set_protocol_error(result);
return;
}
device_id = crm_element_value(dev, F_STONITH_DEVICE);
if (device_id != NULL) {
device = g_hash_table_lookup(device_list, device_id);
if (device == NULL) {
crm_err("Requested device '%s' is not available", device_id);
pcmk__format_result(result, CRM_EX_ERROR, PCMK_EXEC_NO_FENCE_DEVICE,
"Requested device '%s' not found", device_id);
return;
}
schedule_stonith_command(cmd, device);
} else {
const char *host = crm_element_value(dev, F_STONITH_TARGET);
if (pcmk_is_set(cmd->options, st_opt_cs_nodeid)) {
int nodeid = 0;
crm_node_t *node = NULL;
pcmk__scan_min_int(host, &nodeid, 0);
node = pcmk__search_known_node_cache(nodeid, NULL, CRM_GET_PEER_ANY);
if (node != NULL) {
host = node->uname;
}
}
/* If we get to here, then self-fencing is implicitly allowed */
get_capable_devices(host, cmd->action, cmd->default_timeout,
TRUE, cmd, stonith_fence_get_devices_cb,
fenced_support_flag(cmd->action));
}
pcmk__set_result(result, CRM_EX_OK, PCMK_EXEC_PENDING, NULL);
}
/*!
* \internal
* \brief Build an XML reply for a fencing operation
*
* \param[in] request Request that reply is for
* \param[in] data If not NULL, add to reply as call data
* \param[in] result Full result of fencing operation
*
* \return Newly created XML reply
* \note The caller is responsible for freeing the result.
* \note This has some overlap with construct_async_reply(), but that copies
* values from an async_command_t, whereas this one copies them from the
* request.
*/
xmlNode *
fenced_construct_reply(const xmlNode *request, xmlNode *data,
const pcmk__action_result_t *result)
{
xmlNode *reply = NULL;
reply = create_xml_node(NULL, T_STONITH_REPLY);
crm_xml_add(reply, "st_origin", __func__);
crm_xml_add(reply, F_TYPE, T_STONITH_NG);
stonith__xe_set_result(reply, result);
if (request == NULL) {
/* Most likely, this is the result of a stonith operation that was
* initiated before we came up. Unfortunately that means we lack enough
* information to provide clients with a full result.
*
* @TODO Maybe synchronize this information at start-up?
*/
crm_warn("Missing request information for client notifications for "
"operation with result '%s' (initiated before we came up?)",
pcmk_exec_status_str(result->execution_status));
} else {
const char *name = NULL;
const char *value = NULL;
// Attributes to copy from request to reply
const char *names[] = {
F_STONITH_OPERATION,
F_STONITH_CALLID,
F_STONITH_CLIENTID,
F_STONITH_CLIENTNAME,
F_STONITH_REMOTE_OP_ID,
F_STONITH_CALLOPTS
};
for (int lpc = 0; lpc < PCMK__NELEM(names); lpc++) {
name = names[lpc];
value = crm_element_value(request, name);
crm_xml_add(reply, name, value);
}
if (data != NULL) {
add_message_xml(reply, F_STONITH_CALLDATA, data);
}
}
return reply;
}
/*!
* \internal
* \brief Build an XML reply to an asynchronous fencing command
*
* \param[in] cmd Fencing command that reply is for
* \param[in] result Command result
*/
static xmlNode *
construct_async_reply(const async_command_t *cmd,
const pcmk__action_result_t *result)
{
xmlNode *reply = create_xml_node(NULL, T_STONITH_REPLY);
crm_xml_add(reply, "st_origin", __func__);
crm_xml_add(reply, F_TYPE, T_STONITH_NG);
crm_xml_add(reply, F_STONITH_OPERATION, cmd->op);
crm_xml_add(reply, F_STONITH_DEVICE, cmd->device);
crm_xml_add(reply, F_STONITH_REMOTE_OP_ID, cmd->remote_op_id);
crm_xml_add(reply, F_STONITH_CLIENTID, cmd->client);
crm_xml_add(reply, F_STONITH_CLIENTNAME, cmd->client_name);
crm_xml_add(reply, F_STONITH_TARGET, cmd->target);
crm_xml_add(reply, F_STONITH_ACTION, cmd->op);
crm_xml_add(reply, F_STONITH_ORIGIN, cmd->origin);
crm_xml_add_int(reply, F_STONITH_CALLID, cmd->id);
crm_xml_add_int(reply, F_STONITH_CALLOPTS, cmd->options);
stonith__xe_set_result(reply, result);
return reply;
}
bool fencing_peer_active(crm_node_t *peer)
{
if (peer == NULL) {
return FALSE;
} else if (peer->uname == NULL) {
return FALSE;
} else if (pcmk_is_set(peer->processes, crm_get_cluster_proc())) {
return TRUE;
}
return FALSE;
}
void
set_fencing_completed(remote_fencing_op_t *op)
{
struct timespec tv;
qb_util_timespec_from_epoch_get(&tv);
op->completed = tv.tv_sec;
op->completed_nsec = tv.tv_nsec;
}
/*!
* \internal
* \brief Look for alternate node needed if local node shouldn't fence target
*
* \param[in] target Node that must be fenced
*
* \return Name of an alternate node that should fence \p target if any,
* or NULL otherwise
*/
static const char *
check_alternate_host(const char *target)
{
if (pcmk__str_eq(target, stonith_our_uname, pcmk__str_casei)) {
GHashTableIter gIter;
crm_node_t *entry = NULL;
g_hash_table_iter_init(&gIter, crm_peer_cache);
while (g_hash_table_iter_next(&gIter, NULL, (void **)&entry)) {
if (fencing_peer_active(entry)
&& !pcmk__str_eq(entry->uname, target, pcmk__str_casei)) {
crm_notice("Forwarding self-fencing request to %s",
entry->uname);
return entry->uname;
}
}
crm_warn("Will handle own fencing because no peer can");
}
return NULL;
}
/*!
* \internal
* \brief Send a reply to a CPG peer or IPC client
*
* \param[in] reply XML reply to send
* \param[in] call_options Send synchronously if st_opt_sync_call is set
* \param[in] remote_peer If not NULL, name of peer node to send CPG reply
* \param[in,out] client If not NULL, client to send IPC reply
*/
static void
stonith_send_reply(xmlNode *reply, int call_options, const char *remote_peer,
pcmk__client_t *client)
{
CRM_CHECK((reply != NULL) && ((remote_peer != NULL) || (client != NULL)),
return);
if (remote_peer == NULL) {
do_local_reply(reply, client, call_options);
} else {
send_cluster_message(crm_get_peer(0, remote_peer), crm_msg_stonith_ng,
reply, FALSE);
}
}
static void
remove_relay_op(xmlNode * request)
{
xmlNode *dev = get_xpath_object("//@" F_STONITH_ACTION, request, LOG_TRACE);
const char *relay_op_id = NULL;
const char *op_id = NULL;
const char *client_name = NULL;
const char *target = NULL;
remote_fencing_op_t *relay_op = NULL;
if (dev) {
target = crm_element_value(dev, F_STONITH_TARGET);
}
relay_op_id = crm_element_value(request, F_STONITH_REMOTE_OP_ID_RELAY);
op_id = crm_element_value(request, F_STONITH_REMOTE_OP_ID);
client_name = crm_element_value(request, F_STONITH_CLIENTNAME);
/* Delete RELAY operation. */
if (relay_op_id && target && pcmk__str_eq(target, stonith_our_uname, pcmk__str_casei)) {
relay_op = g_hash_table_lookup(stonith_remote_op_list, relay_op_id);
if (relay_op) {
GHashTableIter iter;
remote_fencing_op_t *list_op = NULL;
g_hash_table_iter_init(&iter, stonith_remote_op_list);
/* If the operation to be deleted is registered as a duplicate, delete the registration. */
while (g_hash_table_iter_next(&iter, NULL, (void **)&list_op)) {
GList *dup_iter = NULL;
if (list_op != relay_op) {
for (dup_iter = list_op->duplicates; dup_iter != NULL; dup_iter = dup_iter->next) {
remote_fencing_op_t *other = dup_iter->data;
if (other == relay_op) {
other->duplicates = g_list_remove(other->duplicates, relay_op);
break;
}
}
}
}
crm_debug("Deleting relay op %s ('%s'%s%s for %s), "
"replaced by op %s ('%s'%s%s for %s)",
relay_op->id, relay_op->action,
(relay_op->target == NULL)? "" : " targeting ",
pcmk__s(relay_op->target, ""),
relay_op->client_name, op_id, relay_op->action,
(target == NULL)? "" : " targeting ", pcmk__s(target, ""),
client_name);
g_hash_table_remove(stonith_remote_op_list, relay_op_id);
}
}
}
/*!
* \internal
* \brief Check whether an API request was sent by a privileged user
*
* API commands related to fencing configuration may be done only by privileged
* IPC users (i.e. root or hacluster), because all other users should go through
* the CIB to have ACLs applied. If no client was given, this is a peer request,
* which is always allowed.
*
* \param[in] c IPC client that sent request (or NULL if sent by CPG peer)
* \param[in] op Requested API operation (for logging only)
*
* \return true if sender is peer or privileged client, otherwise false
*/
static inline bool
is_privileged(const pcmk__client_t *c, const char *op)
{
if ((c == NULL) || pcmk_is_set(c->flags, pcmk__client_privileged)) {
return true;
} else {
crm_warn("Rejecting IPC request '%s' from unprivileged client %s",
pcmk__s(op, ""), pcmk__client_name(c));
return false;
}
}
// CRM_OP_REGISTER
static xmlNode *
handle_register_request(pcmk__request_t *request)
{
xmlNode *reply = create_xml_node(NULL, "reply");
CRM_ASSERT(request->ipc_client != NULL);
crm_xml_add(reply, F_STONITH_OPERATION, CRM_OP_REGISTER);
crm_xml_add(reply, F_STONITH_CLIENTID, request->ipc_client->id);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
pcmk__set_request_flags(request, pcmk__request_reuse_options);
return reply;
}
// STONITH_OP_EXEC
static xmlNode *
handle_agent_request(pcmk__request_t *request)
{
execute_agent_action(request->xml, &request->result);
if (request->result.execution_status == PCMK_EXEC_PENDING) {
return NULL;
}
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_TIMEOUT_UPDATE
static xmlNode *
handle_update_timeout_request(pcmk__request_t *request)
{
const char *call_id = crm_element_value(request->xml, F_STONITH_CALLID);
const char *client_id = crm_element_value(request->xml, F_STONITH_CLIENTID);
int op_timeout = 0;
crm_element_value_int(request->xml, F_STONITH_TIMEOUT, &op_timeout);
do_stonith_async_timeout_update(client_id, call_id, op_timeout);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
return NULL;
}
// STONITH_OP_QUERY
static xmlNode *
handle_query_request(pcmk__request_t *request)
{
int timeout = 0;
xmlNode *dev = NULL;
const char *action = NULL;
const char *target = NULL;
const char *client_id = crm_element_value(request->xml, F_STONITH_CLIENTID);
struct st_query_data *query = NULL;
if (request->peer != NULL) {
// Record it for the future notification
create_remote_stonith_op(client_id, request->xml, TRUE);
}
/* Delete the DC node RELAY operation. */
remove_relay_op(request->xml);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
dev = get_xpath_object("//@" F_STONITH_ACTION, request->xml, LOG_NEVER);
if (dev != NULL) {
const char *device = crm_element_value(dev, F_STONITH_DEVICE);
if (pcmk__str_eq(device, "manual_ack", pcmk__str_casei)) {
return NULL; // No query or reply necessary
}
target = crm_element_value(dev, F_STONITH_TARGET);
action = crm_element_value(dev, F_STONITH_ACTION);
}
crm_log_xml_trace(request->xml, "Query");
query = calloc(1, sizeof(struct st_query_data));
CRM_ASSERT(query != NULL);
query->reply = fenced_construct_reply(request->xml, NULL, &request->result);
pcmk__str_update(&query->remote_peer, request->peer);
pcmk__str_update(&query->client_id, client_id);
pcmk__str_update(&query->target, target);
pcmk__str_update(&query->action, action);
query->call_options = request->call_options;
crm_element_value_int(request->xml, F_STONITH_TIMEOUT, &timeout);
get_capable_devices(target, action, timeout,
pcmk_is_set(query->call_options, st_opt_allow_suicide),
query, stonith_query_capable_device_cb, st_device_supports_none);
return NULL;
}
// T_STONITH_NOTIFY
static xmlNode *
handle_notify_request(pcmk__request_t *request)
{
const char *flag_name = NULL;
CRM_ASSERT(request->ipc_client != NULL);
flag_name = crm_element_value(request->xml, F_STONITH_NOTIFY_ACTIVATE);
if (flag_name != NULL) {
crm_debug("Enabling %s callbacks for client %s",
flag_name, pcmk__request_origin(request));
pcmk__set_client_flags(request->ipc_client, get_stonith_flag(flag_name));
}
flag_name = crm_element_value(request->xml, F_STONITH_NOTIFY_DEACTIVATE);
if (flag_name != NULL) {
crm_debug("Disabling %s callbacks for client %s",
flag_name, pcmk__request_origin(request));
pcmk__clear_client_flags(request->ipc_client,
get_stonith_flag(flag_name));
}
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
pcmk__set_request_flags(request, pcmk__request_reuse_options);
return pcmk__ipc_create_ack(request->ipc_flags, "ack", NULL, CRM_EX_OK);
}
// STONITH_OP_RELAY
static xmlNode *
handle_relay_request(pcmk__request_t *request)
{
xmlNode *dev = get_xpath_object("//@" F_STONITH_TARGET, request->xml,
LOG_TRACE);
crm_notice("Received forwarded fencing request from "
"%s %s to fence (%s) peer %s",
pcmk__request_origin_type(request),
pcmk__request_origin(request),
crm_element_value(dev, F_STONITH_ACTION),
crm_element_value(dev, F_STONITH_TARGET));
if (initiate_remote_stonith_op(NULL, request->xml, FALSE) == NULL) {
fenced_set_protocol_error(&request->result);
return fenced_construct_reply(request->xml, NULL, &request->result);
}
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_PENDING, NULL);
return NULL;
}
// STONITH_OP_FENCE
static xmlNode *
handle_fence_request(pcmk__request_t *request)
{
if ((request->peer != NULL) || stand_alone) {
fence_locally(request->xml, &request->result);
} else if (pcmk_is_set(request->call_options, st_opt_manual_ack)) {
switch (fenced_handle_manual_confirmation(request->ipc_client,
request->xml)) {
case pcmk_rc_ok:
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE,
NULL);
break;
case EINPROGRESS:
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_PENDING,
NULL);
break;
default:
fenced_set_protocol_error(&request->result);
break;
}
} else {
const char *alternate_host = NULL;
xmlNode *dev = get_xpath_object("//@" F_STONITH_TARGET, request->xml,
LOG_TRACE);
const char *target = crm_element_value(dev, F_STONITH_TARGET);
const char *action = crm_element_value(dev, F_STONITH_ACTION);
const char *device = crm_element_value(dev, F_STONITH_DEVICE);
if (request->ipc_client != NULL) {
int tolerance = 0;
crm_notice("Client %s wants to fence (%s) %s using %s",
pcmk__request_origin(request), action,
target, (device? device : "any device"));
crm_element_value_int(dev, F_STONITH_TOLERANCE, &tolerance);
if (stonith_check_fence_tolerance(tolerance, target, action)) {
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE,
NULL);
return fenced_construct_reply(request->xml, NULL,
&request->result);
}
alternate_host = check_alternate_host(target);
} else {
crm_notice("Peer %s wants to fence (%s) '%s' with device '%s'",
request->peer, action, target,
(device == NULL)? "(any)" : device);
}
if (alternate_host != NULL) {
const char *client_id = NULL;
remote_fencing_op_t *op = NULL;
if (request->ipc_client->id == 0) {
client_id = crm_element_value(request->xml, F_STONITH_CLIENTID);
} else {
client_id = request->ipc_client->id;
}
/* Create a duplicate fencing operation to relay with the client ID.
* When a query response is received, this operation should be
* deleted to avoid keeping the duplicate around.
*/
op = create_remote_stonith_op(client_id, request->xml, FALSE);
crm_xml_add(request->xml, F_STONITH_OPERATION, STONITH_OP_RELAY);
crm_xml_add(request->xml, F_STONITH_CLIENTID,
request->ipc_client->id);
crm_xml_add(request->xml, F_STONITH_REMOTE_OP_ID, op->id);
send_cluster_message(crm_get_peer(0, alternate_host),
crm_msg_stonith_ng, request->xml, FALSE);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_PENDING,
NULL);
} else if (initiate_remote_stonith_op(request->ipc_client, request->xml,
FALSE) == NULL) {
fenced_set_protocol_error(&request->result);
} else {
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_PENDING,
NULL);
}
}
if (request->result.execution_status == PCMK_EXEC_PENDING) {
return NULL;
}
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_FENCE_HISTORY
static xmlNode *
handle_history_request(pcmk__request_t *request)
{
xmlNode *reply = NULL;
xmlNode *data = NULL;
stonith_fence_history(request->xml, &data, request->peer,
request->call_options);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
if (!pcmk_is_set(request->call_options, st_opt_discard_reply)) {
/* When the local node broadcasts its history, it sets
* st_opt_discard_reply and doesn't need a reply.
*/
reply = fenced_construct_reply(request->xml, data, &request->result);
}
free_xml(data);
return reply;
}
// STONITH_OP_DEVICE_ADD
static xmlNode *
handle_device_add_request(pcmk__request_t *request)
{
const char *op = crm_element_value(request->xml, F_STONITH_OPERATION);
xmlNode *dev = get_xpath_object("//" F_STONITH_DEVICE, request->xml,
LOG_ERR);
if (is_privileged(request->ipc_client, op)) {
int rc = stonith_device_register(dev, FALSE);
pcmk__set_result(&request->result,
((rc == pcmk_ok)? CRM_EX_OK : CRM_EX_ERROR),
stonith__legacy2status(rc),
((rc == pcmk_ok)? NULL : pcmk_strerror(rc)));
} else {
pcmk__set_result(&request->result, CRM_EX_INSUFFICIENT_PRIV,
PCMK_EXEC_INVALID,
"Unprivileged users must register device via CIB");
}
fenced_send_device_notification(op, &request->result,
(dev == NULL)? NULL : ID(dev));
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_DEVICE_DEL
static xmlNode *
handle_device_delete_request(pcmk__request_t *request)
{
xmlNode *dev = get_xpath_object("//" F_STONITH_DEVICE, request->xml,
LOG_ERR);
const char *device_id = crm_element_value(dev, XML_ATTR_ID);
const char *op = crm_element_value(request->xml, F_STONITH_OPERATION);
if (is_privileged(request->ipc_client, op)) {
stonith_device_remove(device_id, false);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
} else {
pcmk__set_result(&request->result, CRM_EX_INSUFFICIENT_PRIV,
PCMK_EXEC_INVALID,
"Unprivileged users must delete device via CIB");
}
fenced_send_device_notification(op, &request->result, device_id);
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_LEVEL_ADD
static xmlNode *
handle_level_add_request(pcmk__request_t *request)
{
char *desc = NULL;
const char *op = crm_element_value(request->xml, F_STONITH_OPERATION);
if (is_privileged(request->ipc_client, op)) {
fenced_register_level(request->xml, &desc, &request->result);
} else {
unpack_level_request(request->xml, NULL, NULL, NULL, &desc);
pcmk__set_result(&request->result, CRM_EX_INSUFFICIENT_PRIV,
PCMK_EXEC_INVALID,
"Unprivileged users must add level via CIB");
}
fenced_send_level_notification(op, &request->result, desc);
free(desc);
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// STONITH_OP_LEVEL_DEL
static xmlNode *
handle_level_delete_request(pcmk__request_t *request)
{
char *desc = NULL;
const char *op = crm_element_value(request->xml, F_STONITH_OPERATION);
if (is_privileged(request->ipc_client, op)) {
fenced_unregister_level(request->xml, &desc, &request->result);
} else {
unpack_level_request(request->xml, NULL, NULL, NULL, &desc);
pcmk__set_result(&request->result, CRM_EX_INSUFFICIENT_PRIV,
PCMK_EXEC_INVALID,
"Unprivileged users must delete level via CIB");
}
fenced_send_level_notification(op, &request->result, desc);
free(desc);
return fenced_construct_reply(request->xml, NULL, &request->result);
}
// CRM_OP_RM_NODE_CACHE
static xmlNode *
handle_cache_request(pcmk__request_t *request)
{
int node_id = 0;
const char *name = NULL;
crm_element_value_int(request->xml, XML_ATTR_ID, &node_id);
name = crm_element_value(request->xml, XML_ATTR_UNAME);
reap_crm_member(node_id, name);
pcmk__set_result(&request->result, CRM_EX_OK, PCMK_EXEC_DONE, NULL);
return NULL;
}
static xmlNode *
handle_unknown_request(pcmk__request_t *request)
{
crm_err("Unknown IPC request %s from %s %s",
request->op, pcmk__request_origin_type(request),
pcmk__request_origin(request));
pcmk__format_result(&request->result, CRM_EX_PROTOCOL, PCMK_EXEC_INVALID,
"Unknown IPC request type '%s' (bug?)", request->op);
return fenced_construct_reply(request->xml, NULL, &request->result);
}
static void
fenced_register_handlers(void)
{
pcmk__server_command_t handlers[] = {
{ CRM_OP_REGISTER, handle_register_request },
{ STONITH_OP_EXEC, handle_agent_request },
{ STONITH_OP_TIMEOUT_UPDATE, handle_update_timeout_request },
{ STONITH_OP_QUERY, handle_query_request },
{ T_STONITH_NOTIFY, handle_notify_request },
{ STONITH_OP_RELAY, handle_relay_request },
{ STONITH_OP_FENCE, handle_fence_request },
{ STONITH_OP_FENCE_HISTORY, handle_history_request },
{ STONITH_OP_DEVICE_ADD, handle_device_add_request },
{ STONITH_OP_DEVICE_DEL, handle_device_delete_request },
{ STONITH_OP_LEVEL_ADD, handle_level_add_request },
{ STONITH_OP_LEVEL_DEL, handle_level_delete_request },
{ CRM_OP_RM_NODE_CACHE, handle_cache_request },
{ NULL, handle_unknown_request },
};
fenced_handlers = pcmk__register_handlers(handlers);
}
void
fenced_unregister_handlers(void)
{
if (fenced_handlers != NULL) {
g_hash_table_destroy(fenced_handlers);
fenced_handlers = NULL;
}
}
static void
handle_request(pcmk__request_t *request)
{
xmlNode *reply = NULL;
const char *reason = NULL;
if (fenced_handlers == NULL) {
fenced_register_handlers();
}
reply = pcmk__process_request(request, fenced_handlers);
if (reply != NULL) {
if (pcmk_is_set(request->flags, pcmk__request_reuse_options)
&& (request->ipc_client != NULL)) {
/* Certain IPC-only commands must reuse the call options from the
* original request rather than the ones set by stonith_send_reply()
* -> do_local_reply().
*/
pcmk__ipc_send_xml(request->ipc_client, request->ipc_id, reply,
request->ipc_flags);
request->ipc_client->request_id = 0;
} else {
stonith_send_reply(reply, request->call_options,
request->peer, request->ipc_client);
}
free_xml(reply);
}
reason = request->result.exit_reason;
crm_debug("Processed %s request from %s %s: %s%s%s%s",
request->op, pcmk__request_origin_type(request),
pcmk__request_origin(request),
pcmk_exec_status_str(request->result.execution_status),
(reason == NULL)? "" : " (",
(reason == NULL)? "" : reason,
(reason == NULL)? "" : ")");
}
static void
handle_reply(pcmk__client_t *client, xmlNode *request, const char *remote_peer)
{
// Copy, because request might be freed before we want to log this
char *op = crm_element_value_copy(request, F_STONITH_OPERATION);
if (pcmk__str_eq(op, STONITH_OP_QUERY, pcmk__str_none)) {
process_remote_stonith_query(request);
} else if (pcmk__str_any_of(op, T_STONITH_NOTIFY, STONITH_OP_FENCE, NULL)) {
fenced_process_fencing_reply(request);
} else {
crm_err("Ignoring unknown %s reply from %s %s",
pcmk__s(op, "untyped"), ((client == NULL)? "peer" : "client"),
((client == NULL)? remote_peer : pcmk__client_name(client)));
crm_log_xml_warn(request, "UnknownOp");
free(op);
return;
}
crm_debug("Processed %s reply from %s %s",
op, ((client == NULL)? "peer" : "client"),
((client == NULL)? remote_peer : pcmk__client_name(client)));
free(op);
}
/*!
* \internal
* \brief Handle a message from an IPC client or CPG peer
*
* \param[in,out] client If not NULL, IPC client that sent message
* \param[in] id If from IPC client, IPC message ID
* \param[in] flags Message flags
* \param[in,out] message Message XML
* \param[in] remote_peer If not NULL, CPG peer that sent message
*/
void
stonith_command(pcmk__client_t *client, uint32_t id, uint32_t flags,
xmlNode *message, const char *remote_peer)
{
int call_options = st_opt_none;
bool is_reply = false;
CRM_CHECK(message != NULL, return);
if (get_xpath_object("//" T_STONITH_REPLY, message, LOG_NEVER) != NULL) {
is_reply = true;
}
crm_element_value_int(message, F_STONITH_CALLOPTS, &call_options);
crm_debug("Processing %ssynchronous %s %s %u from %s %s",
pcmk_is_set(call_options, st_opt_sync_call)? "" : "a",
crm_element_value(message, F_STONITH_OPERATION),
(is_reply? "reply" : "request"), id,
((client == NULL)? "peer" : "client"),
((client == NULL)? remote_peer : pcmk__client_name(client)));
if (pcmk_is_set(call_options, st_opt_sync_call)) {
CRM_ASSERT(client == NULL || client->request_id == id);
}
if (is_reply) {
handle_reply(client, message, remote_peer);
} else {
pcmk__request_t request = {
.ipc_client = client,
.ipc_id = id,
.ipc_flags = flags,
.peer = remote_peer,
.xml = message,
.call_options = call_options,
.result = PCMK__UNKNOWN_RESULT,
};
request.op = crm_element_value_copy(request.xml, F_STONITH_OPERATION);
CRM_CHECK(request.op != NULL, return);
if (pcmk_is_set(request.call_options, st_opt_sync_call)) {
pcmk__set_request_flags(&request, pcmk__request_sync);
}
handle_request(&request);
pcmk__reset_request(&request);
}
}

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