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
* [TACACS+]: Add configDB enforcer for TACACS+
* hostcfgd - configDB enforcer for TACACS+, listen configDB to
modify the pam configuration for Authentication in host
* Add a service script for hostcfgd
Signed-off-by: Chenchen Qi <chenchen.qcc@alibaba-inc.com>
* [TACACS+]: Generate conf file by template file
* Generate common-auth-sonic and tacplus_nss.conf by jinja2 template
Signed-off-by: Chenchen Qi <chenchen.qcc@alibaba-inc.com>
