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TACACSPLUS_PASSKEY_ENCRYPTION support Part - II #81

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TACACSPLUS_PASSKEY_ENCRYPTION support Part - II #81

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8b909b8
TACACSPLUS_PASSKEY_ENCRYPTION support
nmoray Oct 25, 2023
48e7d1d
code cleanup
nmoray Oct 25, 2023
c877edb
Added syslogs
nmoray Oct 25, 2023
b37ddcd
Removed debug prints
nmoray Oct 25, 2023
945f4f2
Fixed AUT issues
nmoray Oct 25, 2023
5b61c0c
Fixed build issues
nmoray Oct 26, 2023
7cb53e6
Fixed build issues
nmoray Oct 26, 2023
43641de
fixed build issues
nmoray Oct 26, 2023
66b57b5
Added a check for passkey before appending into server configs
nmoray Oct 26, 2023
c6c8e0a
Fixed build issues
nmoray Oct 26, 2023
977a268
TACACSPLUS_PASSKEY_ENCRYPTION support
nmoray Oct 25, 2023
a7d01d6
Merge branch 'tacacs_pass_encrypt' of https://github.com/nmoray/sonic…
nmoray Oct 26, 2023
0a1b098
Fixed AUT issue
nmoray Oct 27, 2023
7b14786
Fixed build issues
nmoray Oct 27, 2023
911e2c0
Addressed comments
nmoray Oct 30, 2023
bb5e5ee
Incorporated security cipher class into the existing implemenatation
nmoray Nov 24, 2023
d745364
Added a logic to remove the cipher pass file file encryption is disabled
nmoray Feb 1, 2024
1d85eb6
Updated class name
nmoray Apr 12, 2024
9285df1
Merge branch 'master' into tacacs_pass_encrypt
nmoray Apr 28, 2025
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15 changes: 14 additions & 1 deletion scripts/hostcfgd
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Original file line number Diff line number Diff line change
Expand Up @@ -19,11 +19,14 @@ from sonic_py_common.general import check_output_pipe
from swsscommon.swsscommon import ConfigDBConnector, DBConnector, Table
from swsscommon import swsscommon
from sonic_installer import bootloader
from sonic_py_common.security_cipher import master_key_mgr

hostcfg_file_path = os.path.abspath(__file__)
hostcfg_dir_path = os.path.dirname(hostcfg_file_path)
sys.path.append(hostcfg_dir_path)
import ldap


# FILE
PAM_AUTH_CONF = "/etc/pam.d/common-auth-sonic"
PAM_AUTH_CONF_TEMPLATE = "/usr/share/sonic/templates/common-auth-sonic.j2"
Expand Down Expand Up @@ -96,7 +99,6 @@ DEFAULT_FIPS_RESTART_SERVICES = ['ssh', 'telemetry.service', 'restapi']
CFG_DB = "CONFIG_DB"
STATE_DB = "STATE_DB"


def signal_handler(sig, frame):
if sig == signal.SIGHUP:
syslog.syslog(syslog.LOG_INFO, "HostCfgd: signal 'SIGHUP' is caught and ignoring..")
Expand Down Expand Up @@ -648,6 +650,17 @@ class AaaCfg(object):
server = tacplus_global.copy()
server['ip'] = addr
server.update(self.tacplus_servers[addr])
if 'key_encrypt' in server:
secure_cipher = master_key_mgr()
if server['key_encrypt'] == 'True':
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@anders-nexthop anders-nexthop Jan 22, 2025

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this value depends on how 'key_encrypt' was set. It can also be 'true' instead of 'True' (it's actually more correct to use 'true'). there's an is_true() function you can use if you don't want to worry about which format you might get.

output, errs = secure_cipher.decrypt_passkey("TACPLUS", server['passkey'])
if not errs:
server['passkey'] = output
else:
syslog.syslog(syslog.LOG_ERR, "{}: decrypt_passkey failed.".format(addr))
else:
# Delete the cipher_pass file if exist
secure_cipher.del_cipher_pass()
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@anders-nexthop anders-nexthop Jan 22, 2025

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this will delete the whole file, probably not what we want. it should be enough just to remove the TACACS entry, or set the passkey to ""

servers_conf.append(server)
servers_conf = sorted(servers_conf, key=lambda t: int(t['priority']), reverse=True)

Expand Down
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