Messages in this thread |  | | From | Justin Piszcz <> | Date | Tue, 4 Oct 2016 18:02:17 -0400 | Subject | kernel v4.8: iptables logs are truncated with the 4.8 kernel? |
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Hello,
kernel 4.8 with ulogd-2.0.5- IPs are no longer logged:
Oct 4 17:51:30 atom INPUT_BLOCK IN=eth1 OUT= MAC=00:1b:21:9c:3b:fa:3e:94:d5:d2:49:1e:08:00 LEN=0 TOS=00 PREC=0x00 TTL=0 ID=0 PROTO=0 MARK=0 Oct 4 17:51:31 atom INPUT_BLOCK IN=eth1 OUT= MAC=00:1b:21:9c:3b:fa:3e:94:d5:d2:49:1e:08:00 LEN=0 TOS=00 PREC=0x00 TTL=0 ID=0 PROTO=0 MARK=0 Oct 4 17:51:32 atom INPUT_BLOCK IN=eth1 OUT= MAC=00:1b:21:9c:3b:fa:3e:94:d5:d2:49:1e:08:00 LEN=0 TOS=00 PREC=0x00 TTL=0 ID=0 PROTO=0 MARK=0
(reboot back to kernel 4.7, works fine)
kernel 4.7 with ulogd-2.0.5: Oct 4 17:56:44 atom INPUT_BLOCK IN=eth1 OUT= MAC=00:1b:21:9c:3b:fa:3e:94:d5:d2:49:1e:08:00 SRC=74.125.22.125 DST=1.2.3.4 LEN=397 TOS=00 PREC=0x00 TTL=48 ID=58093 PROTO=TCP SPT=5222 DPT=19804 SEQ=2032644254 ACK=2273184383 WINDOW=55272 ACK PSH URGP=0 MARK=0 Oct 4 17:56:45 atom INPUT_BLOCK IN=eth1 OUT= MAC=00:1b:21:9c:3b:fa:3e:94:d5:d2:49:1e:08:00 SRC=74.125.22.125 DST=1.2.3.4 LEN=397 TOS=00 PREC=0x00 TTL=48 ID=58725 PROTO=TCP SPT=5222 DPT=19804 SEQ=2032644254 ACK=2273184383 WINDOW=55272 ACK PSH URGP=0 MARK=0
Looks like there were some changes in the 4.8 kernel regarding ulogd, has anyone else run into this problem?
} ulog; + if ((li->u.ulog.flags & NF_LOG_F_COPY_LEN) && + (li->u.ulog.copy_len < data_len)) + data_len = li->u.ulog.copy_len; li->u.ulog.group = ntohs(nla_get_be16(tb[NFTA_LOG_GROUP])); + li->u.ulog.flags |= NF_LOG_F_COPY_LEN; li->u.ulog.copy_len = if (nla_put_be16(skb, NFTA_LOG_GROUP, htons(li->u.ulog.group))) - if (li->u.ulog.copy_len) { + if (li->u.ulog.flags & NF_LOG_F_COPY_LEN) { htonl(li->u.ulog.copy_len))) li.u.ulog.group = info->group; li.u.ulog.qthreshold = info->threshold; + li.u.ulog.flags |= NF_LOG_F_COPY_LEN;
Thanks,
Justin.
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