[TACACS+]: Add support for TACACS+ Authentication #1019

liuqu · 2017-10-06T16:33:58Z

pam_tacplus - A TACACS+ protocol client library and PAM module to
supports core TACACS+ functions for AAA.
nss_tacplus - A NSS plugin for TACACS+ to extend function getpwnam,
make the TACACS+ authenticated user which is not found in local
could login successfully.
Add make rules for pam_tacplus and install script
Add a patch for pam_tacplus to disable pam-auth-update pam-tacplus
by default
Add a patch for pam_tacplus to inlucde and build nss_tacplus
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: [email protected]

* pam_tacplus - A TACACS+ protocol client library and PAM module to supports core TACACS+ functions for AAA. * nss_tacplus - A NSS plugin for TACACS+ to extend function getpwnam, make the TACACS+ authenticated user which is not found in local could login successfully. * Add make rules for pam_tacplus and install script * Add a patch for pam_tacplus to disable pam-auth-update pam-tacplus by default * Add a patch for pam_tacplus to inlucde and build nss_tacplus * 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: [email protected]

svc-acs · 2017-10-06T17:43:56Z

Build finished. No test results found.

lguohan · 2017-10-07T18:38:26Z

src/tacacs/0001-Don-t-enable-pam-tacplus-by-default.patch

@@ -0,0 +1,51 @@
+From 80c1d3c1810bf283bbe12fc927de24e48afc2991 Mon Sep 17 00:00:00 2001
+From: Liuqu <[email protected]>


I suggest not to change the way the patch libpam-tacplus, instead, we can disable the pam-tacplus by default in our image. the idea to minimize the change to the original package as little as possible.

Add some scripts to disable the pam-tacplus after install libpam-tacplus?

lguohan · 2017-10-07T18:40:48Z

files/image_config/hostcfgd/hostcfgd.service

+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/hostcfgd 


where is this hostcfgd, what is the usage of this hostcfgd? I cannot find this file in the PR. I suggest to have a separate PR for hostcfgd.

hostcfgd has been created as another PR in sonic-utilities sonic-net/sonic-utilities#125

lguohan · 2017-10-07T18:56:53Z

src/tacacs/0002-Add-nss-tacplus-plugin.patch

@@ -0,0 +1,1071 @@
+From af404e6b4e2eddf529aad5f20ba6e0ee816ffdbf Mon Sep 17 00:00:00 2001


looks like the libnss-tacplus is from https://github.com/daveolson53/libnss-tacplus

since this is a different repo, we should track it separately.

under src directory, we should have pam-tacplus and nss-tacplus directory to track each source separately.

nss-tacplus should also use the same approach as pam-tacplus, in the source repo, we should only track the patch instead of maintaining all the source code.

maybe I misunderstood your reivew at the last PR #746

I agree with the new src directory for nss-tacplus. But our requirements for nss plugin are different from the original repo, such as creating local user for TACACS+ user, not need libtacplus-map. These are many changes in the soucre code. Can we use a new repo？

lguohan · 2017-10-07T18:59:35Z

src/tacacs/Makefile

+	rm -rf ./pam_tacplus
+	git clone https://github.com/jeroennijhof/pam_tacplus.git 
+	pushd ./pam_tacplus
+	git checkout -f v1.5.0-beta.1


why do we use beta version? can we use a stable version?

There are some build error at last stable version v1.4.1 in sonic build environment, and this beta version has fix them. To minimize the change, this beta version is chosen.

I will change it to the stable version v1.4.1 and add the patches to make it build successfully.

Two commits can fix the building error, but it will produce the conflict when they're applied to v1.4.1 directly. Some unnecessary commits have to be applied to resolve the conflict. Can we create two new commits as patch to minimize the change?

lguohan

as comments

* Separate nss-tacplus from pam-tacplus, modify tacacs.mk and makefile, add a patch to adapt to the new user map profile. * Use the lastest stable version for pam-tacplus, add a dependent package in sonic-salve, add two patches to fix build error. * Add scripts to disable tacplus by default. * Remove hostcfgd service file Signed-off-by: Chenchen Qi <[email protected]>

liuqu · 2017-10-10T15:59:20Z

Already finished the changes, please review it again. Thanks

Separate nss-tacplus from pam-tacplus, modify tacacs.mk and makefile, add a patch to adapt to the new user map profile.
Use the lastest stable version for pam-tacplus, add a dependent package in sonic-salve, add two patches to fix build error.
Add scripts to disable tacplus by default.
Remove hostcfgd service file

* The NAME_REGEX for username check in plugin nss-tacplus is the ANSI version "^[0-9a-zA-Z_-\ ]*$", but the regular expression in /etc/adduser.conf is not defined as ANSI version. To avoid nss-tacplus filter some valid TACACS+ username, remove username check. Signed-off-by: Chenchen Qi <[email protected]>

lguohan · 2017-12-07T09:02:58Z

slave.mk

@@ -391,7 +390,9 @@ $(addprefix $(TARGET_PATH)/, $(SONIC_INSTALLERS)) : $(TARGET_PATH)/% : \
                $(LINUX_KERNEL) \
                $(IGB_DRIVER) \
                $(SONIC_DEVICE_DATA) \
-                $(SONIC_UTILS)) \
+                $(SONIC_UTILS)


missing backslash

lguohan · 2017-12-07T09:03:17Z

slave.mk

@@ -391,7 +390,9 @@ $(addprefix $(TARGET_PATH)/, $(SONIC_INSTALLERS)) : $(TARGET_PATH)/% : \
                $(LINUX_KERNEL) \
                $(IGB_DRIVER) \
                $(SONIC_DEVICE_DATA) \
-                $(SONIC_UTILS)) \
+                $(SONIC_UTILS)
+                $(LIBPAM_TACPLUS)


missing backslash

[sairedis]: ARM32 bit fixes, for 64bit printf format specifier (#490) fix wrong API type , add cmdline parse option , remove unuseful api call (#499) Use pointer to member function to reduce the footprint of collectCounters() (#488) [syncd] Add support for Innovium platform (#496) [saisdkdump]: Fix dump generation crash (#493) [swss]: Add scope attribute to VNET table. (#954) [portsyncd]: Fix portsyncd restart case (#1019) [vnet]: Enable "vnet_orch_1" VS test case (#1020) [vlan] Add pytest cases to validate the behavior about add LAG member to vlan. (#875) [policerorch]: Add the capability to update policer rate/size (#1017) [aclorch]: Add MIRRORv6 support for NPS platform (#1018) [orchagent]: Avoid crash by setting g_syncMode flag before create_switch (#1014) [orchagent] Add support for Innovium platform (#1005) Provide broadcast IP while configuring interface ip address (#1007) [VLAN] Add pytest cases to validate different use-case of tagging_mode. (#860) [vstest]: Add test_port_config.py which include breakout port test. (#866) [vstests]: change 'test_acl_egress_table.py' to UNIX format (#1010) [vlan] Add pytest cases to verify data in app db and state db. (#895) [vstest]: Add the CRM tests (#1013) [warm-reboot]: add bgp eoiu support to speed up route reconcile (#856) [fdborch] support mac update (#877) [vxlanorch] Fix Logic of Vxlan tunnel removal (#995) Fix VLAN error introduced with new 4.9 kernel behavior (#1001) Config DB manual is being moved from Wiki to SWSS repo (#1002) Trap DHCPv6 packets for supporting ZTP over in-band interfaces using … (#997) Signed-off-by: Andriy Kokhan <[email protected]>

I noticed that after swss restart in VS orchagent does not receive PortInitDone. I looked at the comment about "g_portSet" says that: When this LinkSync class is * initialized, we check the database to see if some of the ports' host * interfaces are already created and remove them from this set. However g_portSet was filled after LinkSync is initialized, so I considered this is a bug causing orchagent does not receive PortInitDone when portsyncd starts after host interfaces were created. Signed-off-by: Stepan Blyschak <[email protected]>

[sairedis]: ARM32 bit fixes, for 64bit printf format specifier (sonic-net#490) fix wrong API type , add cmdline parse option , remove unuseful api call (sonic-net#499) Use pointer to member function to reduce the footprint of collectCounters() (sonic-net#488) [syncd] Add support for Innovium platform (sonic-net#496) [saisdkdump]: Fix dump generation crash (sonic-net#493) [swss]: Add scope attribute to VNET table. (sonic-net#954) [portsyncd]: Fix portsyncd restart case (sonic-net#1019) [vnet]: Enable "vnet_orch_1" VS test case (sonic-net#1020) [vlan] Add pytest cases to validate the behavior about add LAG member to vlan. (sonic-net#875) [policerorch]: Add the capability to update policer rate/size (sonic-net#1017) [aclorch]: Add MIRRORv6 support for NPS platform (sonic-net#1018) [orchagent]: Avoid crash by setting g_syncMode flag before create_switch (sonic-net#1014) [orchagent] Add support for Innovium platform (sonic-net#1005) Provide broadcast IP while configuring interface ip address (sonic-net#1007) [VLAN] Add pytest cases to validate different use-case of tagging_mode. (sonic-net#860) [vstest]: Add test_port_config.py which include breakout port test. (sonic-net#866) [vstests]: change 'test_acl_egress_table.py' to UNIX format (sonic-net#1010) [vlan] Add pytest cases to verify data in app db and state db. (sonic-net#895) [vstest]: Add the CRM tests (sonic-net#1013) [warm-reboot]: add bgp eoiu support to speed up route reconcile (sonic-net#856) [fdborch] support mac update (sonic-net#877) [vxlanorch] Fix Logic of Vxlan tunnel removal (sonic-net#995) Fix VLAN error introduced with new 4.9 kernel behavior (sonic-net#1001) Config DB manual is being moved from Wiki to SWSS repo (sonic-net#1002) Trap DHCPv6 packets for supporting ZTP over in-band interfaces using … (sonic-net#997) Signed-off-by: Andriy Kokhan <[email protected]>

lguohan reviewed Oct 7, 2017

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lguohan requested changes Oct 7, 2017

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jleveque added the Enhancement ➕ label Oct 30, 2017

lguohan and others added 2 commits October 31, 2017 20:59

Merge branch 'master' into tacacs+

241171f

lguohan reviewed Dec 7, 2017

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Merge branch 'master' into tacacs+

86a4391

liuqu force-pushed the tacacs+ branch from e214715 to 86a4391 Compare December 7, 2017 09:10

lguohan approved these changes Dec 7, 2017

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lguohan merged commit 8383b1f into sonic-net:master Dec 7, 2017

akokhan mentioned this pull request Aug 13, 2019

[swss][sairedis] advance sub-modules #3326

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[TACACS+]: Add support for TACACS+ Authentication #1019

[TACACS+]: Add support for TACACS+ Authentication #1019

liuqu commented Oct 6, 2017

svc-acs commented Oct 6, 2017

lguohan Oct 7, 2017

liuqu Oct 8, 2017

lguohan Oct 7, 2017

liuqu Oct 8, 2017

lguohan Oct 7, 2017

liuqu Oct 8, 2017

lguohan Oct 7, 2017

liuqu Oct 8, 2017 •

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liuqu commented Oct 10, 2017

lguohan Dec 7, 2017

lguohan Dec 7, 2017

		@@ -0,0 +1,51 @@
		From 80c1d3c1810bf283bbe12fc927de24e48afc2991 Mon Sep 17 00:00:00 2001
		From: Liuqu <[email protected]>

		@@ -0,0 +1,1071 @@
		From af404e6b4e2eddf529aad5f20ba6e0ee816ffdbf Mon Sep 17 00:00:00 2001

[TACACS+]: Add support for TACACS+ Authentication #1019

[TACACS+]: Add support for TACACS+ Authentication #1019

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liuqu commented Oct 6, 2017

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