* Add DHCPv6 minigraph parsing support
Co-authored-by: shlomibitton <60430976+shlomibitton@users.noreply.github.com>
Logrotate for wtmp and btmp files to fix size getting too large. (#8744)
Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>
[201811][utilities][swss][snmpagent] advance sub module head
snmpagent
* 187aa10 2021-09-16 | [201811][RFC1213]: Initialize lag oid map in reinit_data (#233) (github/201811) [SuvarnaMeenakshi]
swss:
* 3503705 2021-09-05 | [201811][Cherry-pick] [acl mirror action] Mirror session ref count fix at acl rule attachment (#1898) (HEAD -> 201811, github/201811) [bingwang-ms]
utilities:
* f3f8667 2021-10-15 | [201811] disk_check.py: Allow remote user access when disk is read-only (#1873) (HEAD -> 201811, github/201811) [Renuka Manavalan]
* 6b351c9 2021-10-14 | [201811] Remove exec from platform_reboot_plugin call to handle any hang issue. (#1880) [Sujin Kang]
* d8d0461 2021-07-29 | [minigraph][port_config] Consume port_config.json while reloading minigraph (#1726) [Blueve]
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
[201811] Invoke disk check periodically (#8951)
* Invoke disk check periodically. (#7374)
Why I did it
Helps with periodic scan of disk for RO state.
If found, this script makes transient fix and raise error message.
Save DB dump after warm/fast reboot (#8913)
Back porting the master branch change - #8803
Save the redis DB dump after warm reboot.
[201811][swss] advance swss submodule head (#9049)
* e0b115a 2021-10-22 | [copp] add dhcpv6 copp rules (#1979) (HEAD -> 201811, github/201811) [Ying Xie]
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
[swssconfig] load dhcpv6 copp rules by default (#9047)
Why I did it
Need to enable DHCPv6 copp rule
How I did it
Add a separate DHCPv6 copp rule config file and load it during cold reboot.
How to verify it
cold reboot, and verify config being loaded and dhcpv6 rules got installed.
Signed-off-by: Ying Xie ying.xie@microsoft.com
[warmboot finalizer] load dhcpv6 copp rules when missing (#9048)
Why I did it
Need to enable DHCPv6 COPP rules.
How I did it
Load the separate DHCPv6 COPP rules after warm reboot if the rules are missing.
How to verify it
Warm reboot from an image doesn't have DHCPv6 COPP rules installed.
Warm reboot from an image have DHCPv6 COPP rules already installed.
In either case, the script did the right thing and only install the COPP rules if it is missing.
Signed-off-by: Ying Xie ying.xie@microsoft.com
Recent changes brought l2 vlan concept which does not have DHCP
clients behind them and so DHCP relay is not required. Also,
dhcpmon fails to launch on those vlans as their interfaces
lack IP addresses. This PR backposts #6527 that limits launch
of both DHCP relay and dhcpmon to L3 vlans only.
original-pr: #6527
singed-off-by: Tamer Ahmed tamer.ahmed@microsoft.com
Printing both snapshot and current counter sets will make it easier to pinpoint
which message type(s) is/are not being relayed. This PR prints both counter sets.
Also, this PR defines gnu11 as a C standard to compile with in order to avoid
making changes when porting to 201811 branch.
singed-off-by: Tamer Ahmed <tamer.ahmed@microsoft.com>
When BGP routes are missing, DHCP packets get relayed over mgmt
interface. This results in dhcpmon alerting that DHCP packets are
not being relayed. This is PR include mgmt interface as uplink
device, and so, if DHCP packet gets relayed over mgmt interface,
regular dhcpmon alert will not be issues. Instead, dhcpmon will
check the mgmt interface counts and issue a separate alert regarding
packets travelling through mgmt network.
In addition, this PR includes the following enhancements:
1. Add SIGUSR1 handler that prints out current packet counts
2. Increase alert grace window to 3 minutes from currently 2 minutes
3. Time is now computed more accurately
4. Print vlan name before counters
signed-off-by: Tamer Ahmed <tamer.ahmed@microsoft.com>
When BGP routes are missing, DHCP packets get relayed over mgmt
interface. This results in dhcpmon alerting that DHCP packets are
not being relayed. This is PR include mgmt interface as uplink
device, and so, if DHCP packet gets relayed over mgmt interface,
regular dhcpmon alert will not be issues. Instead, dhcpmon will
check the mgmt interface counts and issue a separate alert regarding
packets travelling through mgmt network.
In addition, this PR includes the following enhancements:
1. Add SIGUSR1 handler that prints out current packet counts
2. Increase alert grace window to 3 minutes from currently 2 minutes
3. Time is now computed more accurately
4. Print vlan name before counters
signed-off-by: Tamer Ahmed <tamer.ahmed@microsoft.com>
* [dhcp-relay]: Add DHCP Relay Monitor (#3886)
DHCP relay MONitor (dhcpmon) keeps track of DORA messages. If DHCP Relay
is detected to be not forwarding DORA message, dhcpmon will log such event
to syslog. Under the hood dhcpmon keeps counts of clients DR messages,
forwarded DR messages, DHCP server OA messages, and forwarded OA messages.
dhcpmon will check every 12 sec (configurable) if counts are monotonically
increasing and record snapshot of those counters. dhcpmon will report
discrepancies when detected between current counters and snapshot counters.
pull-request: https://github.com/Azure/sonic-buildimage/pull/3886
signed-off-by: Tamer Ahmed <tamer.ahmed@microsoft.com>
* Eliminate dependency on libexplain
* Remove dependency on libexplain
* Change URL for isc-dhcp source repository
* Modify supervisor conf to generate dhcrelay commands with '-id' and '-iu' options
* Comments; Also clean up jinja2 syntax
* Patch relay to open one socket per interface and send to all servers on all upstream interfaces
* Patch relay agent to properly forward BOOTREQUEST only on appropriate interface if it is a directed broadcast
* Port upstream patches to isc-dhcp-relay to support upstream/downstream interfaces
* Update patch to properly support interfaces with multiple IP addresses assigned
* Pass --enable-use-sockets to configure instead of uncommenting USE_SOCKETS directly
* [DHCP Relay]: Support new <DhcpRelays> minigraph tag; support multiple VLANs
* Don't start dhcrelay in quiet mode so as to get startup output in syslog
* Update sonic-cfggen tests to support new '<DhcpRelays>' tag
* <DhcpRelays> tag is only present for VLANs which require a DHCP relay agent -- only parse if present
* Don't attempt to configure a DHCP relay agent for VLANs without specified DHCP servers
* Modify to work with Taoyu's minigraph/DB changes (#942)
* Reduce number of DHCP servers in sonic-cfggen unit tests from 4 to 2
* Remove isc-dhcp-relay sample output file from sonic-cfggen test, as we no longer generate that file
* Update Option 82 isc-dhcp-relay patch to load all interface name-alias maps into memory once at start instead of calling sonic-cfggen on each packet we relay
* Remove executable permission from Jinja2 template
* Set max hop count to 1 so that DHCP relay will only relay packets with a hop count of zero
* Replace tabs with spaces
* Modify overlooked sonic-cfggen call, use Config DB instead of minigraph
* Also ensure > 1 VLAN requires a DHCP relay agent before outputting to template
* Generate port name-alias map file using sonic-cfggen and parse that in lieu of parsing port_config.ini directly
* No longer drop packets with hop count > 0; Instead, drop packets which already contain agent info
