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Old 05-19-2008, 03:36 PM
 
Default Cluster Project branch, master, updated. cluster-2.99.02-1-g2dd250b

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- Log -----------------------------------------------------------------
commit 2dd250b4ffba38c37d4634c02789ff2705327454
Author: Marek 'marx' Grac <mgrac@redhat.com>
Date: Mon May 19 17:28:39 2008 +0200

[FENCE] Fix #248609: SSH support in Bladecenter fencing (ssh)

Complete ssh support for Bladecenter. You can use password or private key
(identity_file on STDIN; -k in getopt) to login to system. This patch contains
complete infrastructure (usable also by other agents).

-----------------------------------------------------------------------

Summary of changes:
fence/agents/bladecenter/fence_bladecenter.py | 2 +-
fence/agents/lib/fencing.py.py | 40 ++++++++++++++++++++-----
2 files changed, 33 insertions(+), 9 deletions(-)

diff --git a/fence/agents/bladecenter/fence_bladecenter.py b/fence/agents/bladecenter/fence_bladecenter.py
index d149ede..2707054 100755
--- a/fence/agents/bladecenter/fence_bladecenter.py
+++ b/fence/agents/bladecenter/fence_bladecenter.py
@@ -64,7 +64,7 @@ def set_power_status(conn, options):
def main():
device_opt = [ "help", "version", "agent", "quiet", "verbose", "debug",
"action", "ipaddr", "login", "passwd", "passwd_script",
- "cmd_prompt", "secure", "port" ]
+ "cmd_prompt", "secure", "port", "identity_file" ]

options = check_input(device_opt, process_input(device_opt))

diff --git a/fence/agents/lib/fencing.py.py b/fence/agents/lib/fencing.py.py
index b0de573..ff98c25 100644
--- a/fence/agents/lib/fencing.py.py
+++ b/fence/agents/lib/fencing.py.py
@@ -72,12 +72,16 @@ all_opt = {
"order" : 1 },
"passwd" : {
"getopt" : "p:",
- "help" : "-p <password> Login password",
+ "help" : "-p <password> Login password or passphrase",
"order" : 1 },
"passwd_script" : {
"getopt" : "S:",
"help" : "-S <script> Script to run to retrieve password",
"order" : 1 },
+ "identity_file" : {
+ "getopt" : "k:",
+ "help" : "-k <filename> Identity file (private key) for ssh ",
+ "order" : 1 },
"module_name" : {
"getopt" : "m:",
"help" : "-m <module> DRAC/MC module name",
@@ -254,11 +258,19 @@ def check_input(device_opt, opt):
if 0 == options.has_key("-a"):
fail_usage("Failed: You have to enter fence address")

- if 0 == (options.has_key("-p") or options.has_key("-S")):
- fail_usage("Failed: You have to enter password or password script")
+ if 0 == device_opt.count("identity_file"):
+ if 0 == (options.has_key("-p") or options.has_key("-S")):
+ fail_usage("Failed: You have to enter password or password script")
+ else:
+ if 0 == (options.has_key("-p") or options.has_key("-S") or options.has_key("-k")):
+ fail_usage("Failed: You have to enter password, password script or identity file")
+
+ if 0 == options.has_key("-x") and 1 == options.has_key("-k"):
+ fail_usage("Failed: You have to use identity file together with ssh connection (-x)")

- if 1 == (options.has_key("-p") and options.has_key("-S")):
- fail_usage("Failed: You have to enter password or password script")
+ if 1 == options.has_key("-k"):
+ if 0 == os.path.isfile(options["-k"]):
+ fail_usage("Failed: Identity file " + options["-k"] + " does not exist")

if (0 == options.has_key("-n")) and (device_opt.count("port")):
fail_usage("Failed: You have to enter plug number")
@@ -325,14 +337,26 @@ def fence_login(options):
re_login = re.compile("(login: )|(Login Name: )|(username: )|(User Name ", re.IGNORECASE)
re_pass = re.compile("password", re.IGNORECASE)

- if options.has_key("-x"):
+ if options.has_key("-x") and 0 == options.has_key("-k"):
conn = fspawn ('ssh ' + options["-l"] + "@" + options["-a"])
- result = conn.log_expect(options, [ "ssword: ", "Are you sure you want to continue connecting (yes/no)?" ], LOGIN_TIMEOUT)
+ result = conn.log_expect(options, [ "ssword:", "Are you sure you want to continue connecting (yes/no)?" ], LOGIN_TIMEOUT)
if result == 1:
conn.sendline("yes")
- conn.log_expect(options, "ssword: ", SHELL_TIMEOUT)
+ conn.log_expect(options, "ssword:", SHELL_TIMEOUT)
conn.sendline(options["-p"])
conn.log_expect(options, options["-c"], SHELL_TIMEOUT)
+ elif options.has_key("-x") and 1 == options.has_key("-k"):
+ conn = fspawn ('ssh ' + options["-l"] + "@" + options["-a"] + " -i " + options["-k"])
+ result = conn.log_expect(options, [ options["-c"], "Are you sure you want to continue connecting (yes/no)?", "Enter passphrase for key '"+options["-k"]+"':" ], LOGIN_TIMEOUT)
+ if result == 1:
+ conn.sendline("yes")
+ conn.log_expect(options, [ options["-c"], "Enter passphrase for key '"+options["-k"]+"':"] , SHELL_TIMEOUT)
+ if result != 0:
+ if options.has_key("-p"):
+ conn.sendline(options["-p"])
+ conn.log_expect(options, options["-c"], SHELL_TIMEOUT)
+ else:
+ fail_usage("Failed: You have to enter passphrase (-p) for identity file")
else:
conn = fspawn ('telnet ' + options["-a"])
conn.log_expect(options, re_login, LOGIN_TIMEOUT)


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