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Check if the network interface still exists #3371

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merged 1 commit into from
Oct 10, 2021

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@guedou guedou commented Sep 14, 2021

This PR fixes #3369.

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codecov bot commented Sep 14, 2021

Codecov Report

Merging #3371 (a2fd46d) into master (23ff728) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #3371      +/-   ##
==========================================
- Coverage   85.77%   85.76%   -0.02%     
==========================================
  Files         274      274              
  Lines       56638    56642       +4     
==========================================
- Hits        48582    48579       -3     
- Misses       8056     8063       +7     
Impacted Files Coverage Δ
scapy/arch/linux.py 0.72% <0.00%> (-0.01%) ⬇️
scapy/arch/windows/__init__.py 67.73% <0.00%> (-0.57%) ⬇️
scapy/contrib/automotive/gm/gmlan_scanner.py 86.14% <0.00%> (-0.28%) ⬇️
scapy/layers/tls/automaton_cli.py 70.96% <0.00%> (+0.13%) ⬆️

@gpotter2 gpotter2 merged commit 7ffd810 into secdev:master Oct 10, 2021
@gpotter2 gpotter2 added this to the 2.5.0 milestone Mar 29, 2022
liat-grozovik pushed a commit to sonic-net/sonic-buildimage that referenced this pull request Apr 7, 2022
Why I did it
Running warm-reboot in a loop for 500 times leads to this error on 318-th iteration:

Apr  2 15:56:27.346747 sonic INFO swss#/supervisord: restore_neighbors Traceback (most recent call last):
Apr  2 15:56:27.346747 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/bin/restore_neighbors.py", line 24, in <module>
Apr  2 15:56:27.346747 sonic INFO swss#/supervisord: restore_neighbors     from scapy.all import conf, in6_getnsma, inet_pton, inet_ntop, in6_getnsmac, get_if_hwaddr, Ether, ARP, IPv6, ICMPv6ND_NS, ICMPv6NDOptSrcLLAddr
Apr  2 15:56:27.346795 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/all.py", line 25, in <module>
Apr  2 15:56:27.346956 sonic INFO swss#/supervisord: restore_neighbors     from scapy.route import *
Apr  2 15:56:27.346995 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/route.py", line 205, in <module>
Apr  2 15:56:27.347089 sonic INFO swss#/supervisord: restore_neighbors     conf.iface = get_working_if()
Apr  2 15:56:27.347129 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/arch/linux.py", line 128, in get_working_if
Apr  2 15:56:27.347213 sonic INFO swss#/supervisord: restore_neighbors     ifflags = struct.unpack("16xH14x", get_if(i, SIOCGIFFLAGS))[0]
Apr  2 15:56:27.347250 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/arch/common.py", line 31, in get_if
Apr  2 15:56:27.347345 sonic INFO swss#/supervisord: restore_neighbors     return ioctl(sck, cmd, struct.pack("16s16x", iff.encode("utf8")))
Apr  2 15:56:27.347365 sonic INFO swss#/supervisord: restore_neighbors OSError: [Errno 19] No such device
The issue was reported to scapy devs secdev/scapy#3369, the fix is secdev/scapy#3371, however there is no released scapy version with this fix right now, thus decided to build scapy v2.4.5 from sources and apply the fix in a form of a patch.

Signed-off-by: Stepan Blyschak <[email protected]>
qiluo-msft pushed a commit to sonic-net/sonic-buildimage that referenced this pull request Apr 7, 2022
Why I did it
Running warm-reboot in a loop for 500 times leads to this error on 318-th iteration:

Apr  2 15:56:27.346747 sonic INFO swss#/supervisord: restore_neighbors Traceback (most recent call last):
Apr  2 15:56:27.346747 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/bin/restore_neighbors.py", line 24, in <module>
Apr  2 15:56:27.346747 sonic INFO swss#/supervisord: restore_neighbors     from scapy.all import conf, in6_getnsma, inet_pton, inet_ntop, in6_getnsmac, get_if_hwaddr, Ether, ARP, IPv6, ICMPv6ND_NS, ICMPv6NDOptSrcLLAddr
Apr  2 15:56:27.346795 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/all.py", line 25, in <module>
Apr  2 15:56:27.346956 sonic INFO swss#/supervisord: restore_neighbors     from scapy.route import *
Apr  2 15:56:27.346995 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/route.py", line 205, in <module>
Apr  2 15:56:27.347089 sonic INFO swss#/supervisord: restore_neighbors     conf.iface = get_working_if()
Apr  2 15:56:27.347129 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/arch/linux.py", line 128, in get_working_if
Apr  2 15:56:27.347213 sonic INFO swss#/supervisord: restore_neighbors     ifflags = struct.unpack("16xH14x", get_if(i, SIOCGIFFLAGS))[0]
Apr  2 15:56:27.347250 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/arch/common.py", line 31, in get_if
Apr  2 15:56:27.347345 sonic INFO swss#/supervisord: restore_neighbors     return ioctl(sck, cmd, struct.pack("16s16x", iff.encode("utf8")))
Apr  2 15:56:27.347365 sonic INFO swss#/supervisord: restore_neighbors OSError: [Errno 19] No such device
The issue was reported to scapy devs secdev/scapy#3369, the fix is secdev/scapy#3371, however there is no released scapy version with this fix right now, thus decided to build scapy v2.4.5 from sources and apply the fix in a form of a patch.

Signed-off-by: Stepan Blyschak <[email protected]>
judyjoseph pushed a commit to sonic-net/sonic-buildimage that referenced this pull request Apr 11, 2022
Why I did it
Running warm-reboot in a loop for 500 times leads to this error on 318-th iteration:

Apr  2 15:56:27.346747 sonic INFO swss#/supervisord: restore_neighbors Traceback (most recent call last):
Apr  2 15:56:27.346747 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/bin/restore_neighbors.py", line 24, in <module>
Apr  2 15:56:27.346747 sonic INFO swss#/supervisord: restore_neighbors     from scapy.all import conf, in6_getnsma, inet_pton, inet_ntop, in6_getnsmac, get_if_hwaddr, Ether, ARP, IPv6, ICMPv6ND_NS, ICMPv6NDOptSrcLLAddr
Apr  2 15:56:27.346795 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/all.py", line 25, in <module>
Apr  2 15:56:27.346956 sonic INFO swss#/supervisord: restore_neighbors     from scapy.route import *
Apr  2 15:56:27.346995 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/route.py", line 205, in <module>
Apr  2 15:56:27.347089 sonic INFO swss#/supervisord: restore_neighbors     conf.iface = get_working_if()
Apr  2 15:56:27.347129 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/arch/linux.py", line 128, in get_working_if
Apr  2 15:56:27.347213 sonic INFO swss#/supervisord: restore_neighbors     ifflags = struct.unpack("16xH14x", get_if(i, SIOCGIFFLAGS))[0]
Apr  2 15:56:27.347250 sonic INFO swss#/supervisord: restore_neighbors   File "/usr/local/lib/python3.7/dist-packages/scapy/arch/common.py", line 31, in get_if
Apr  2 15:56:27.347345 sonic INFO swss#/supervisord: restore_neighbors     return ioctl(sck, cmd, struct.pack("16s16x", iff.encode("utf8")))
Apr  2 15:56:27.347365 sonic INFO swss#/supervisord: restore_neighbors OSError: [Errno 19] No such device
The issue was reported to scapy devs secdev/scapy#3369, the fix is secdev/scapy#3371, however there is no released scapy version with this fix right now, thus decided to build scapy v2.4.5 from sources and apply the fix in a form of a patch.

Signed-off-by: Stepan Blyschak <[email protected]>
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Race condition in LinuxInterfaceProvider::load()
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