[Bug 280648] Traffic leak between fibs
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Date: Wed, 18 Sep 2024 08:39:46 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280648 --- Comment #7 from Egor <banezmesm@gmail.com> --- (In reply to Tatsuki Makino from comment #2) I reproduced this problem in my lab. Config is: 1) Asus 750 hypervisor with proxmox 8.4: pve-fw01:~$ uname -a Linux pve-fw01 6.8.8-4-pve #1 SMP PREEMPT_DYNAMIC PMX 6.8.8-4 (2024-07-26T11:15Z) x86_64 GNU/Linux 2) Freebsd virtual machine with linked mellanox connectx6 pci card: test-fw01:~$ uname -a FreeBSD test-fw01 14.1-RELEASE-p4 FreeBSD 14.1-RELEASE-p4 GENERIC amd64 I catched traffic for all interfaces with enabled pf and with disabled pf. There is no difference. Tcpdump with enabled pf test-fw01:~$ sudo tcpdump -nei mce1.1280 host 172.16.188.194 and port 22 tcpdump: verbose output suppressed, use -v[v]... for full protocol decode listening on mce1.1280, link-type EN10MB (Ethernet), snapshot length 262144 bytes 16:50:53.753073 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.179.42.57836 > 172.16.188.194.22: Flags [S], seq 3922742222, win 64240, options [mss 1460,sackOK,TS val 3411125639 ecr 0,nop,wscale 7], length 0 16:50:54.816302 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.179.42.57836 > 172.16.188.194.22: Flags [S], seq 3922742222, win 64240, options [mss 1460,sackOK,TS val 3411126703 ecr 0,nop,wscale 7], length 0 16:50:55.840297 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.179.42.57836 > 172.16.188.194.22: Flags [S], seq 3922742222, win 64240, options [mss 1460,sackOK,TS val 3411127727 ecr 0,nop,wscale 7], length 0 16:50:56.864293 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.179.42.57836 > 172.16.188.194.22: Flags [S], seq 3922742222, win 64240, options [mss 1460,sackOK,TS val 3411128751 ecr 0,nop,wscale 7], length 0 16:50:57.888290 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.179.42.57836 > 172.16.188.194.22: Flags [S], seq 3922742222, win 64240, options [mss 1460,sackOK,TS val 3411129775 ecr 0,nop,wscale 7], length 0 test-fw01:~$ sudo tcpdump -nei mce1.3101 host 172.16.188.194 and port 22 tcpdump: verbose output suppressed, use -v[v]... for full protocol decode listening on mce1.3101, link-type EN10MB (Ethernet), snapshot length 262144 bytes 16:50:53.753130 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460,nop,wscale 9,sackOK,TS val 4184867862 ecr 3411125639], length 0 16:50:54.760769 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460,nop,wscale 9,sackOK,TS val 4184868868 ecr 3411125639], length 0 16:50:54.816333 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460,nop,wscale 9,sackOK,TS val 4184868920 ecr 3411126703], length 0 16:50:55.820324 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460,nop,wscale 9,sackOK,TS val 4184869929 ecr 3411126703], length 0 16:50:55.840332 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460,nop,wscale 9,sackOK,TS val 4184869949 ecr 3411127727], length 0 16:50:56.841091 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460,nop,wscale 9,sackOK,TS val 4184870950 ecr 3411127727], length 0 16:50:56.864323 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460,nop,wscale 9,sackOK,TS val 4184870969 ecr 3411128751], length 0 test-fw01:~$ sudo tcpdump -ner /var/log/pflog host 172.16.188.194 and port 57836 reading from file /var/log/pflog, link-type PFLOG (OpenBSD pflog file), snapshot length 116 16:50:53.753073 rule 5/0(match): pass in on mce1.1280: 172.16.179.42.57836 > 172.16.188.194.22: Flags [S], seq 3922742222, win 64240, options [mss 1460, [|tcp] 16:50:53.753130 rule 1/0(match): block in on mce1.3101: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460, [|tcp] 16:50:54.760769 rule 1/0(match): block in on mce1.3101: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460, [|tcp] 16:50:54.816333 rule 1/0(match): block in on mce1.3101: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460, [|tcp] 16:50:55.820324 rule 1/0(match): block in on mce1.3101: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460, [|tcp] 16:50:55.840332 rule 1/0(match): block in on mce1.3101: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460, [|tcp] 16:50:56.841091 rule 1/0(match): block in on mce1.3101: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460, [|tcp] 16:50:56.864323 rule 1/0(match): block in on mce1.3101: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460, [|tcp] 16:50:57.863064 rule 1/0(match): block in on mce1.3101: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460, [|tcp] 16:50:57.888331 rule 1/0(match): block in on mce1.3101: 172.16.188.194.22 > 172.16.179.42.57836: Flags [S.], seq 1825143446, ack 3922742223, win 65535, options [mss 1460, [|tcp] Tcpdump with disabled pf test-fw01:~$ sudo tcpdump -nei mce1.1280 host 172.16.188.194 and port 22 tcpdump: verbose output suppressed, use -v[v]... for full protocol decode listening on mce1.1280, link-type EN10MB (Ethernet), snapshot length 262144 bytes 17:01:42.533010 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.179.42.34620 > 172.16.188.194.22: Flags [S], seq 215584557, win 64240, options [mss 1460,sackOK,TS val 3411775040 ecr 0,nop,wscale 7], length 0 17:01:42.533054 b8:3f:d2:1c:e2:09 > d0:09:c8:ca:09:27, ethertype IPv4 (0x0800), length 74: 172.16.188.194.22 > 172.16.179.42.34620: Flags [S.], seq 1105243323, ack 215584558, win 65535, options [mss 1460,nop,wscale 9,sackOK,TS val 2313997153 ecr 3411775040], length 0 17:01:42.533144 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 66: 172.16.179.42.34620 > 172.16.188.194.22: Flags [.], ack 1, win 502, options [nop,nop,TS val 3411775040 ecr 2313997153], length 0 17:01:42.533505 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 108: 172.16.179.42.34620 > 172.16.188.194.22: Flags [P.], seq 1:43, ack 1, win 502, options [nop,nop,TS val 3411775040 ecr 2313997153], length 42: SSH: SSH-2.0-OpenSSH_9.6p1 Ubuntu-3ubuntu13.5 17:01:42.566078 b8:3f:d2:1c:e2:09 > d0:09:c8:ca:09:27, ethertype IPv4 (0x0800), length 66: 172.16.188.194.22 > 172.16.179.42.34620: Flags [.], ack 43, win 129, options [nop,nop,TS val 2313997190 ecr 3411775040], length 0 17:02:04.656826 b8:3f:d2:1c:e2:09 > d0:09:c8:ca:09:27, ethertype IPv4 (0x0800), length 104: 172.16.188.194.22 > 172.16.179.42.34620: Flags [P.], seq 1:39, ack 43, win 129, options [nop,nop,TS val 2314019278 ecr 3411775040], length 38: SSH: SSH-2.0-OpenSSH_9.7 FreeBSD-20240806 17:02:04.656940 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 66: 172.16.179.42.34620 > 172.16.188.194.22: Flags [.], ack 39, win 502, options [nop,nop,TS val 3411797164 ecr 2314019278], length 0 17:02:04.657554 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 1514: 172.16.179.42.34620 > 172.16.188.194.22: Flags [.], seq 43:1491, ack 39, win 502, options [nop,nop,TS val 3411797165 ecr 2314019278], length 1448 17:02:04.657554 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 154: 172.16.179.42.34620 > 172.16.188.194.22: Flags [P.], seq 1491:1579, ack 39, win 502, options [nop,nop,TS val 3411797165 ecr 2314019278], length 88 17:02:04.657604 b8:3f:d2:1c:e2:09 > d0:09:c8:ca:09:27, ethertype IPv4 (0x0800), length 66: 172.16.188.194.22 > 172.16.179.42.34620: Flags [.], ack 1579, win 126, options [nop,nop,TS val 2314019278 ecr 3411797165], length 0 17:02:04.657843 b8:3f:d2:1c:e2:09 > d0:09:c8:ca:09:27, ethertype IPv4 (0x0800), length 1186: 172.16.188.194.22 > 172.16.179.42.34620: Flags [P.], seq 39:1159, ack 1579, win 126, options [nop,nop,TS val 2314019278 ecr 3411797165], length 1120 17:02:04.698103 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 66: 172.16.179.42.34620 > 172.16.188.194.22: Flags [.], ack 1159, win 501, options [nop,nop,TS val 3411797206 ecr 2314019278], length 0 17:02:04.792136 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 1274: 172.16.179.42.34620 > 172.16.188.194.22: Flags [P.], seq 1579:2787, ack 1159, win 501, options [nop,nop,TS val 3411797300 ecr 2314019278], length 1208 17:02:04.802961 b8:3f:d2:1c:e2:09 > d0:09:c8:ca:09:27, ethertype IPv4 (0x0800), length 1514: 172.16.188.194.22 > 172.16.179.42.34620: Flags [.], seq 1159:2607, ack 2787, win 129, options [nop,nop,TS val 2314019418 ecr 3411797300], length 1448 17:02:04.802963 b8:3f:d2:1c:e2:09 > d0:09:c8:ca:09:27, ethertype IPv4 (0x0800), length 150: 172.16.188.194.22 > 172.16.179.42.34620: Flags [P.], seq 2607:2691, ack 2787, win 129, options [nop,nop,TS val 2314019418 ecr 3411797300], length 84 test-fw01:~$ sudo tcpdump -nei mce1.3101 host 172.16.188.194 and port 22 tcpdump: verbose output suppressed, use -v[v]... for full protocol decode listening on mce1.3101, link-type EN10MB (Ethernet), snapshot length 262144 bytes 17:01:42.533054 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 74: 172.16.188.194.22 > 172.16.179.42.34620: Flags [S.], seq 1105243323, ack 215584558, win 65535, options [mss 1460,nop,wscale 9,sackOK,TS val 2313997153 ecr 3411775040], length 0 17:01:42.566078 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 66: 172.16.188.194.22 > 172.16.179.42.34620: Flags [.], ack 43, win 129, options [nop,nop,TS val 2313997190 ecr 3411775040], length 0 17:02:04.656826 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 104: 172.16.188.194.22 > 172.16.179.42.34620: Flags [P.], seq 1:39, ack 43, win 129, options [nop,nop,TS val 2314019278 ecr 3411775040], length 38: SSH: SSH-2.0-OpenSSH_9.7 FreeBSD-20240806 17:02:04.657604 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 66: 172.16.188.194.22 > 172.16.179.42.34620: Flags [.], ack 1579, win 126, options [nop,nop,TS val 2314019278 ecr 3411797165], length 0 17:02:04.657843 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 1186: 172.16.188.194.22 > 172.16.179.42.34620: Flags [P.], seq 39:1159, ack 1579, win 126, options [nop,nop,TS val 2314019278 ecr 3411797165], length 1120 17:02:04.802961 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 1514: 172.16.188.194.22 > 172.16.179.42.34620: Flags [.], seq 1159:2607, ack 2787, win 129, options [nop,nop,TS val 2314019418 ecr 3411797300], length 1448 17:02:04.802963 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 150: 172.16.188.194.22 > 172.16.179.42.34620: Flags [P.], seq 2607:2691, ack 2787, win 129, options [nop,nop,TS val 2314019418 ecr 3411797300], length 84 17:02:05.514898 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 66: 172.16.188.194.22 > 172.16.179.42.34620: Flags [.], ack 2871, win 129, options [nop,nop,TS val 2314019519 ecr 3411797357], length 0 17:02:05.515063 d0:09:c8:ca:09:27 > b8:3f:d2:1c:e2:09, ethertype IPv4 (0x0800), length 110: 172.16.188.194.22 > 172.16.179.42.34620: Flags [P.], seq 2691:2735, ack 2915, win 129, options [nop,nop,TS val 2314019519 ecr 3411797408], length 44 routing tables info test-fw01:~$ sudo netstat -rn Routing tables Internet: Destination Gateway Flags Netif Expire default 172.16.188.193 UGS vtnet0 10.222.254.254 link#3 UHS lo0 10.222.254.254/31 link#2 U vtnet1 127.0.0.1 link#3 UH lo0 172.16.188.192/26 link#1 U vtnet0 172.16.188.194 link#3 UHS lo0 Internet6: Destination Gateway Flags Netif Expire ::/96 link#3 URS lo0 ::1 link#3 UHS lo0 ::ffff:0.0.0.0/96 link#3 URS lo0 fe80::%lo0/10 link#3 URS lo0 fe80::%lo0/64 link#3 U lo0 fe80::1%lo0 link#3 UHS lo0 ff02::/16 link#3 URS lo0 test-fw01:~$ sudo setfib 1 netstat -rn Routing tables (fib: 1) Internet: Destination Gateway Flags Netif Expire 127.0.0.1 link#3 UHS lo0 172.16.0.0/16 link#3 U1B lo0 172.16.176.0/26 192.168.255.0 UG1 mce0.124 172.16.176.0/26 192.168.255.2 UG1 mce1.124 172.16.176.64/26 192.168.255.0 UG1 mce0.124 172.16.176.64/26 192.168.255.2 UG1 mce1.124 172.16.176.128/26 192.168.255.0 UG1 mce0.124 172.16.176.128/26 192.168.255.2 UG1 mce1.124 172.16.176.192/27 192.168.255.0 UG1 mce0.124 172.16.176.192/27 192.168.255.2 UG1 mce1.124 172.16.177.0/26 192.168.255.16 UG1 mce0.125 172.16.177.0/26 192.168.255.18 UG1 mce1.125 172.16.177.64/27 192.168.255.16 UG1 mce0.125 172.16.177.64/27 192.168.255.18 UG1 mce1.125 172.16.177.96/27 192.168.255.16 UG1 mce0.125 172.16.177.96/27 192.168.255.18 UG1 mce1.125 172.16.177.128/27 192.168.255.16 UG1 mce0.125 172.16.177.128/27 192.168.255.18 UG1 mce1.125 172.16.178.0/28 192.168.255.32 UG1 mce0.126 172.16.178.0/28 192.168.255.34 UG1 mce1.126 172.16.178.32/27 192.168.255.32 UG1 mce0.126 172.16.178.32/27 192.168.255.34 UG1 mce1.126 172.16.179.0/28 192.168.255.64 UG1 mce0.128 172.16.179.0/28 192.168.255.66 UG1 mce1.128 172.16.179.16/29 192.168.255.64 UG1 mce0.128 172.16.179.16/29 192.168.255.66 UG1 mce1.128 172.16.179.24/30 192.168.255.64 UG1 mce0.128 172.16.179.24/30 192.168.255.66 UG1 mce1.128 172.16.179.28/30 192.168.255.64 UG1 mce0.128 172.16.179.28/30 192.168.255.66 UG1 mce1.128 172.16.179.32/30 192.168.255.64 UG1 mce0.128 172.16.179.32/30 192.168.255.66 UG1 mce1.128 172.16.179.36/30 192.168.255.64 UG1 mce0.128 172.16.179.36/30 192.168.255.66 UG1 mce1.128 172.16.179.40/30 192.168.255.64 UG1 mce0.128 172.16.179.40/30 192.168.255.66 UG1 mce1.128 172.16.179.48/30 192.168.255.64 UG1 mce0.128 172.16.179.48/30 192.168.255.66 UG1 mce1.128 172.16.179.64/28 192.168.255.64 UG1 mce0.128 172.16.179.64/28 192.168.255.66 UG1 mce1.128 172.16.180.0/27 192.168.255.48 UG1 mce0.127 172.16.180.0/27 192.168.255.50 UG1 mce1.127 172.16.180.32/27 192.168.255.48 UG1 mce0.127 172.16.180.32/27 192.168.255.50 UG1 mce1.127 172.16.181.0/28 192.168.255.80 UG1 mce0.131 172.16.181.0/28 192.168.255.82 UG1 mce1.131 172.17.0.0/16 link#3 U1B lo0 172.17.160.0/27 192.168.255.96 UG1 mce0.149 172.17.160.0/27 192.168.255.98 UG1 mce1.149 172.17.160.32/27 192.168.255.96 UG1 mce0.149 172.17.160.32/27 192.168.255.98 UG1 mce1.149 172.17.160.64/27 192.168.255.96 UG1 mce0.149 172.17.160.64/27 192.168.255.98 UG1 mce1.149 172.17.161.0/24 192.168.255.96 UG1 mce0.149 172.17.161.0/24 192.168.255.98 UG1 mce1.149 192.168.255.0/31 link#6 U mce0.124 192.168.255.1 link#3 UHS lo0 192.168.255.2/31 link#7 U mce1.124 192.168.255.3 link#3 UHS lo0 192.168.255.16/31 link#8 U mce0.125 192.168.255.17 link#3 UHS lo0 192.168.255.18/31 link#9 U mce1.125 192.168.255.19 link#3 UHS lo0 192.168.255.32/31 link#10 U mce0.126 192.168.255.33 link#3 UHS lo0 192.168.255.34/31 link#11 U mce1.126 192.168.255.35 link#3 UHS lo0 192.168.255.48/31 link#12 U mce0.127 192.168.255.49 link#3 UHS lo0 192.168.255.50/31 link#13 U mce1.127 192.168.255.51 link#3 UHS lo0 192.168.255.64/31 link#14 U mce0.128 192.168.255.65 link#3 UHS lo0 192.168.255.66/31 link#15 U mce1.128 192.168.255.67 link#3 UHS lo0 192.168.255.80/31 link#16 U mce0.131 192.168.255.81 link#3 UHS lo0 192.168.255.82/31 link#17 U mce1.131 192.168.255.83 link#3 UHS lo0 192.168.255.96/31 link#18 U mce0.149 192.168.255.97 link#3 UHS lo0 192.168.255.98/31 link#19 U mce1.149 192.168.255.99 link#3 UHS lo0 192.168.255.112/31 link#22 U mce0.310 192.168.255.113 link#3 UHS lo0 192.168.255.114/31 link#23 U mce1.310 192.168.255.115 link#3 UHS lo0 192.168.255.144/31 link#20 U mce0.310 192.168.255.145 link#3 UHS lo0 192.168.255.146/31 link#21 U mce1.310 192.168.255.147 link#3 UHS lo0 Internet6: Destination Gateway Flags Netif Expire ::/96 link#3 URS lo0 ::1 link#3 UHS lo0 ::ffff:0.0.0.0/96 link#3 URS lo0 fe80::%lo0/10 link#3 URS lo0 ff02::/16 link#3 URS lo0 -- You are receiving this mail because: You are the assignee for the bug.