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Hi list, |
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I 'm trying to emerge net-analyzer/tcpdump-4.6.2, to debug some ICMPv6 |
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problem I recently encountered. So, I type: |
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|
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Riaqn-Laptop ~ # emerge -av tcpdump |
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|
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These are the packages that would be merged, in order: |
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|
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Calculating dependencies... done! |
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[ebuild N ] sys-libs/libcap-ng-0.7.4 USE="-python -static-libs" PYTHON_TARGETS="python2_7 python3_3 -python3_4" 0 KiB |
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[ebuild N ] net-analyzer/tcpdump-4.6.2 USE="drop-root ipv6 ssl -samba -smi -suid {-test}" 0 KiB |
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|
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Total: 2 packages (2 new), Size of downloads: 0 KiB |
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|
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Would you like to merge these packages? [Yes/No] yes |
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|
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>>> Verifying ebuild manifests |
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|
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>>> Emerging (1 of 2) sys-libs/libcap-ng-0.7.4::gentoo |
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* libcap-ng-0.7.4.tar.gz SHA256 SHA512 WHIRLPOOL size ;-) ... [ ok ] |
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>>> Unpacking source... |
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>>> Unpacking libcap-ng-0.7.4.tar.gz to /var/tmp/portage/sys-libs/libcap-ng-0.7.4/work |
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>>> Source unpacked in /var/tmp/portage/sys-libs/libcap-ng-0.7.4/work |
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>>> Preparing source in /var/tmp/portage/sys-libs/libcap-ng-0.7.4/work/libcap-ng-0.7.4 ... |
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* ACCESS DENIED: open_wr: /proc/sys/net/ipv6/conf/enp4s0/autoconf |
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* ACCESS DENIED: open_wr: /proc/sys/net/ipv6/conf/enp4s0/accept_ra |
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* Running eautoreconf in '/var/tmp/portage/sys-libs/libcap-ng-0.7.4/work/libcap-ng-0.7.4' ... |
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* Running libtoolize --install --copy --force --automake ... |
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* ACCESS DENIED: open_wr: /proc/sys/net/ipv6/conf/enp4s0/autoconf |
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* ACCESS DENIED: open_wr: /proc/sys/net/ipv6/conf/enp4s0/accept_ra [ ok ] |
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|
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Riaqn-Laptop ~ # cat /var/tmp/portage/sys-libs/libcap-ng-0.7.4/temp/autoconf.out |
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***** autoconf ***** |
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***** PWD: /var/tmp/portage/sys-libs/libcap-ng-0.7.4/work/libcap-ng-0.7.4 |
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***** autoconf |
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|
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sysctl: permission denied on key 'net.ipv6.conf.enp4s0.autoconf' |
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sysctl: permission denied on key 'net.ipv6.conf.enp4s0.accept_ra' |
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|
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However, the permission looks quite right, I(root) can even write to it: |
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Riaqn-Laptop ~ # ls -l /proc/sys/net/ipv6/conf/enp4s0/autoconf |
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-rw-r--r-- 1 root root 0 12月 9 22:58 /proc/sys/net/ipv6/conf/enp4s0/autoconf |
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|
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Even if I emerge with FEATURES="-userpriv" doesn't help, same output. |
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I don't know if it's related, but as far as I noticed, dhcpcd will set |
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these two values to 0, to disable the kernel configuring the IPv6 |
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address.(I checked dhcpcd source) |
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|
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Any comment is appreciated! |
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|
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Regards, |
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-- |
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Zesen Qian (钱泽森) |
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