sonic-buildimage/files/image_config/hostcfgd/common-auth-sonic.j2
Venkatesan Mahalingam 7d003c3518 [TACACS+]: Add support to specify source address for TACACS+ (#4610)
This pull request was cherry picked from "#1238" to resolve the conflicts.

- Why I did it
Add support to specify source address for TACACS+
- How I did it
Add patches for libpam-tacplus and libnss-tacplus. The patches parse the new option 'src_ip' and store the converted addrinfo. Then the addrinfo is used for TACACS+ connection.
Add a attribute 'src_ip' for table "TACPLUS|global" in configDB
Add some code to adapt to the attribute 'src_ip'.
- How to verify it
Config command for source address PR in sonic-utilities
config tacacs src_ip <ip_address>

- Description for the changelog
Add patches to specify source address for the TACACS+ outgoing packets.

- A picture of a cute animal (not mandatory but encouraged)

**UT logs: **

UT_tacacs_source_intf.txt
2020-07-12 18:08:51 +00:00

44 lines
2.6 KiB
Django/Jinja

#THIS IS AN AUTO-GENERATED FILE
#
# /etc/pam.d/common-auth- authentication settings common to all services
# This file is included from other service-specific PAM config files,
# and should contain a list of the authentication modules that define
# the central authentication scheme for use on the system
# (e.g., /etc/shadow, LDAP, Kerberos, etc.). The default is to use the
# traditional Unix authentication mechanisms.
#
# here are the per-package modules (the "Primary" block)
{% if auth['login'] == 'local' %}
auth [success=1 default=ignore] pam_unix.so nullok try_first_pass
{% elif auth['login'] == 'local,tacacs+' %}
auth [success=done new_authtok_reqd=done default=ignore{{ ' auth_err=die' if not auth['failthrough'] }}] pam_unix.so nullok try_first_pass
{% for server in servers | sub(0, -1) %}
auth [success=done new_authtok_reqd=done default=ignore{{ ' auth_err=die' if not auth['failthrough'] }}] pam_tacplus.so server={{ server.ip }}:{{ server.tcp_port }} secret={{ server.passkey }} login={{ server.auth_type }} timeout={{ server.timeout }} {% if server.vrf %} vrf={{ server.vrf }} {% endif %} {{ 'source_ip=%s' % src_ip if src_ip }} try_first_pass
{% endfor %}
{% if servers | count %}
{% set last_server = servers | last %}
auth [success=1 default=ignore] pam_tacplus.so server={{ last_server.ip }}:{{ last_server.tcp_port }} secret={{ last_server.passkey }} login={{ last_server.auth_type }} timeout={{ last_server.timeout }} {% if last_server.vrf %} vrf={{ last_server.vrf }} {% endif %} {{ 'source_ip=%s' % src_ip if src_ip }} try_first_pass
{% endif %}
{% elif auth['login'] == 'tacacs+' or auth['login'] == 'tacacs+,local' %}
{% for server in servers %}
auth [success=done new_authtok_reqd=done default=ignore{{ ' auth_err=die' if not auth['failthrough'] }}] pam_tacplus.so server={{ server.ip }}:{{ server.tcp_port }} secret={{ server.passkey }} login={{ server.auth_type }} timeout={{ server.timeout }} {%if server.vrf %} vrf={{ server.vrf }} {% endif %} {{ 'source_ip=%s' % src_ip if src_ip }} try_first_pass
{% endfor %}
auth [success=1 default=ignore] pam_unix.so nullok try_first_pass
{% else %}
auth [success=1 default=ignore] pam_unix.so nullok try_first_pass
{% endif %}
#
# here's the fallback if no module succeeds
auth requisite pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around
auth required pam_permit.so
# and here are more per-package modules (the "Additional" block)