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[tacacs]: Fix tcpdump report error when tacacs enabled (#16372)

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Fix tcpdump report error when tacacs enabled.

Why I did it
Fix tcpdump report error when tacacs enabled:
Sep 1 09:25:18.189395 vlab-01 ERR tcpdump: nss_tacplus: /etc/tacplus_nss.conf fopen failed
Sep 1 09:25:18.189606 vlab-01 ERR tcpdump: nss_tacplus: bad config or server line for nss_tacplus

This is because debian add a patch create AppArmor profile for resource access control. The profile need update to allow tcpdump access /etc/tacplus_nss.conf.

Work item tracking
Microsoft ADO: 17667308

How I did it
Modify tcpdump AppArmor profile, add new line to allow tcpdump access TACACS config file:

/etc/tacplus_nss.conf r,
This commit is contained in:
Hua Liu 2023-09-23 15:07:53 +08:00 committed by GitHub
parent ac39220a77
commit 11f5a75425
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 6 additions and 0 deletions
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4
build_debian.sh
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@ -407,6 +407,10 @@ LogsDirectory=audit
LogsDirectoryMode=0750 LogsDirectoryMode=0750
EOF EOF
# latest tcpdump control resource access with AppArmor.
# override tcpdump profile to allow tcpdump access TACACS config file.
sudo cp files/apparmor/usr.bin.tcpdump $FILESYSTEM_ROOT/etc/apparmor.d/local/usr.bin.tcpdump
if [[ $CONFIGURED_ARCH == amd64 ]]; then if [[ $CONFIGURED_ARCH == amd64 ]]; then
## Pre-install the fundamental packages for amd64 (x86) ## Pre-install the fundamental packages for amd64 (x86)
sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install \ sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install \

2
files/apparmor/usr.bin.tcpdump Normal file
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@ -0,0 +1,2 @@
# tcpdump will call getpwnam get current user information, the NSS plugin nss_tacplus hook this API and need access tacacs config file.
/etc/tacplus_nss.conf r,