1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
#!@PYTHON@ -tt
import sys
import atexit
import socket
import struct
import logging
sys.path.append("@FENCEAGENTSLIBDIR@")
from fencing import *
from fencing import fail, fail_usage, run_delay, EC_LOGIN_DENIED, EC_TIMED_OUT
INT4 = 4
def open_socket(options):
try:
if "--inet6-only" in options:
protocol = socket.AF_INET6
elif "--inet4-only" in options:
protocol = socket.AF_INET
else:
protocol = 0
(_, _, _, _, addr) = socket.getaddrinfo( \
options["--ip"], options["--ipport"], protocol,
0, socket.IPPROTO_TCP, socket.AI_PASSIVE
)[0]
except socket.gaierror:
fail(EC_LOGIN_DENIED)
if "--ssl-secure" in options or "--ssl-insecure" in options:
import ssl
sock = socket.socket()
sslcx = ssl.create_default_context()
if "--ssl-insecure" in options:
sslcx.check_hostname = False
sslcx.verify_mode = ssl.CERT_NONE
conn = sslcx.wrap_socket(sock, server_hostname=options["--ip"])
else:
conn = socket.socket()
conn.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
conn.settimeout(float(options["--shell-timeout"]) or None)
try:
conn.connect(addr)
except socket.error as e:
logging.debug(e)
fail(EC_LOGIN_DENIED)
return conn
def smapi_pack_string(string):
return struct.pack("!i%ds" % (len(string)), len(string), string.encode("UTF-8"))
def prepare_smapi_command(options, smapi_function, additional_args):
packet_size = 3*INT4 + len(smapi_function) + len(options["--username"]) + len(options["--password"])
for arg in additional_args:
packet_size += INT4 + len(arg)
command = struct.pack("!i", packet_size)
command += smapi_pack_string(smapi_function)
command += smapi_pack_string(options["--username"])
command += smapi_pack_string(options["--password"])
for arg in additional_args:
command += smapi_pack_string(arg)
return command
def get_power_status(conn, options):
del conn
if options.get("--original-action", None) == "monitor":
(return_code, reason_code, images_active) = \
get_list_of_images(options, "Check_Authentication", None)
logging.debug("Check_Authenticate (%d,%d)", return_code, reason_code)
if return_code == 0:
return {}
else:
fail(EC_LOGIN_DENIED)
if options["--action"] == "list":
# '*' = list all active images
options["--plug"] = "*"
(return_code, reason_code, images_active) = \
get_list_of_images(options, "Image_Status_Query", options["--plug"])
logging.debug("Image_Status_Query results are (%d,%d)", return_code, reason_code)
if not options["--action"] == "list":
if (return_code == 0) and (reason_code == 0):
return "on"
elif (return_code == 0) and (reason_code == 12):
# We are running always with --missing-as-off because we can not check if image
# is defined or not (look at rhbz#1188750)
return "off"
else:
return "unknown"
else:
(return_code, reason_code, images_defined) = \
get_list_of_images(options, "Image_Name_Query_DM", options["--username"])
logging.debug("Image_Name_Query_DM results are (%d,%d)", return_code, reason_code)
return dict([(i, ("", "on" if i in images_active else "off")) for i in images_defined])
def set_power_status(conn, options):
conn = open_socket(options)
packet = None
if options["--action"] == "on":
packet = prepare_smapi_command(options, "Image_Activate", [options["--plug"]])
elif options["--action"] == "off":
packet = prepare_smapi_command(options, "Image_Deactivate", [options["--plug"], "IMMED"])
conn.send(packet)
request_id = struct.unpack("!i", conn.recv(INT4))[0]
(output_len, request_id, return_code, reason_code) = struct.unpack("!iiii", conn.recv(INT4 * 4))
logging.debug("Image_(De)Activate results are (%d,%d)", return_code, reason_code)
conn.close()
return
def get_list_of_images(options, command, data_as_plug):
conn = open_socket(options)
if data_as_plug is None:
packet = prepare_smapi_command(options, command, [])
else:
packet = prepare_smapi_command(options, command, [data_as_plug])
conn.send(packet)
try:
request_id = struct.unpack("!i", conn.recv(INT4))[0]
(output_len, request_id, return_code, reason_code) = struct.unpack("!iiii", conn.recv(INT4 * 4))
except struct.error:
logging.debug(sys.exc_info())
fail_usage("Failed: Unable to connect to {} port: {} SSL: {} \n".format(options["--ip"], options["--ipport"], bool("--ssl" in options)))
images = set()
if output_len > 3*INT4:
recvflag = socket.MSG_WAITALL if "--ssl-secure" not in options and "--ssl-insecure" not in options else 0
array_len = struct.unpack("!i", conn.recv(INT4))[0]
data = ""
while True:
read_data = conn.recv(1024, recvflag).decode("UTF-8")
data += read_data
if array_len == len(data):
break
elif not read_data:
logging.error("Failed: Not enough data read from socket")
fail(EC_TIMED_OUT)
parsed_len = 0
while parsed_len < array_len:
string_len = struct.unpack("!i", data[parsed_len:parsed_len+INT4].encode("UTF-8"))[0]
parsed_len += INT4
image_name = struct.unpack("!%ds" % (string_len), data[parsed_len:parsed_len+string_len].encode("UTF-8"))[0].decode("UTF-8")
parsed_len += string_len
images.add(image_name)
conn.close()
return (return_code, reason_code, images)
def define_new_opts():
all_opt["disable_ssl"] = {
"getopt" : "",
"longopt" : "disable-ssl",
"help" : "--disable-ssl Don't use SSL connection",
"required" : "0",
"shortdesc" : "Don't use SSL",
"order": 2
}
def main():
device_opt = ["ipaddr", "login", "passwd", "port", "method", "missing_as_off",
"inet4_only", "inet6_only", "ssl", "disable_ssl"]
atexit.register(atexit_handler)
define_new_opts()
all_opt["ssl"]["help"] = "-z, --ssl Use SSL connection with verifying certificate (Default)"
all_opt["ipport"]["default"] = "44444"
all_opt["shell_timeout"]["default"] = "5"
all_opt["missing_as_off"]["default"] = "1"
all_opt["ssl"]["default"] = "1"
options = check_input(device_opt, process_input(device_opt), other_conditions=True)
if "--disable-ssl" in options or options["--ssl"] == "0":
for k in ["--ssl", "--ssl-secure", "--ssl-insecure"]:
if k in options:
del options[k]
if len(options.get("--plug", "")) > 8:
fail_usage("Failed: Name of image can not be longer than 8 characters")
if options["--action"] == "validate-all":
sys.exit(0)
docs = {}
docs["shortdesc"] = "Fence agent for use with z/VM Virtual Machines"
docs["longdesc"] = """The fence_zvm agent is intended to be used with with z/VM SMAPI service via TCP/IP
To use this agent the z/VM SMAPI service needs to be configured to allow the virtual machine running this agent to connect to it and issue
the image_recycle operation. This involves updating the VSMWORK1 AUTHLIST VMSYS:VSMWORK1. file. The entry should look something similar to
this:
Column 1 Column 66 Column 131
| | |
V V V
XXXXXXXX ALL IMAGE_CHARACTERISTICS
Where XXXXXXX is the name of the virtual machine used in the authuser field of the request. This virtual machine also has to be authorized
to access the system's directory manager.
"""
docs["vendorurl"] = "http://www.ibm.com"
show_docs(options, docs)
run_delay(options)
result = fence_action(None, options, set_power_status, get_power_status, get_power_status)
sys.exit(result)
if __name__ == "__main__":
main()
|
