From: Ed W <lists@wildgooses.com>
To: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Cc: netfilter <netfilter@vger.kernel.org>
Subject: Re: ipset causes reverse dns lookups?
Date: Mon, 16 Apr 2012 14:14:11 +0100 [thread overview]
Message-ID: <4F8C1B23.8040400@wildgooses.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1204161126050.20321@blackhole.kfki.hu>
On 16/04/2012 10:55, Jozsef Kadlecsik wrote:
> Try the following untested patch:
>
Thanks for the idea. I'm not 100% sure I'm testing correctly, but I
rebuilt and I see no change...
Does the following strace help any?
$ /tmp/strace /tmp/ipset add cp2 192.168.105.56,58:b0:35:78:0d:f5
execve("/tmp/ipset", ["/tmp/ipset", "add", "cp2",
"192.168.105.56,58:b0:35:78:0d:f5"], [/* 16 vars */]) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x4f9cc000
stat("/etc/ld.so.cache", {st_mode=S_IFREG|0644, st_size=6754, ...}) = 0
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
mmap2(NULL, 6754, PROT_READ, MAP_SHARED, 3, 0) = 0x4f9ca000
close(3) = 0
stat("/etc/ld.so.preload", 0x5cc84aec) = -1 ENOENT (No such file or
directory)
open("/lib/libmnl.so.0", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0755, st_size=17580, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x4f9c9000
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0L\25\0\0004\0\0\0"...,
4096) = 4096
mmap2(NULL, 24576, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4f9c3000
mmap2(0x4f9c3000, 13016, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0x4f9c3000
mmap2(0x4f9c7000, 4100, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3,
0x3) = 0x4f9c7000
close(3) = 0
munmap(0x4f9c9000, 4096) = 0
open("/lib/libgcc_s.so.1", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=91276, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x4f9c9000
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0|\"\0\0004\0\0\0"...,
4096) = 4096
mmap2(NULL, 94208, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4f9ac000
mmap2(0x4f9ac000, 85844, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0x4f9ac000
mmap2(0x4f9c1000, 4120, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3,
0x15) = 0x4f9c1000
close(3) = 0
munmap(0x4f9c9000, 4096) = 0
open("/lib/libc.so.0", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0755, st_size=372132, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x4f9c9000
read(3,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@\333\0\0004\0\0\0"...,
4096) = 4096
mmap2(NULL, 397312, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x4f94b000
mmap2(0x4f94b000, 365288, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 3,
0) = 0x4f94b000
mmap2(0x4f9a5000, 4904, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3,
0x59) = 0x4f9a5000
mmap2(0x4f9a7000, 19752, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4f9a7000
close(3) = 0
munmap(0x4f9c9000, 4096) = 0
open("/lib/libgcc_s.so.1", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=91276, ...}) = 0
close(3) = 0
open("/lib/libc.so.0", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0755, st_size=372132, ...}) = 0
close(3) = 0
open("/lib/libc.so.0", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0755, st_size=372132, ...}) = 0
close(3) = 0
stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0755, st_size=25236, ...}) = 0
munmap(0x4f9ca000, 6754) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x4f9cb000
set_thread_area({entry_number:-1 -> 6, base_addr:0x4f9cb6a0,
limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
limit_in_pages:1, seg_not_present:0, useable:1}) = 0
open("/dev/urandom", O_RDONLY) = 3
read(3, "\254#\3\273", 4) = 4
close(3) = 0
mprotect(0x1409c000, 8192, PROT_READ) = 0
mprotect(0x4f9c7000, 4096, PROT_READ) = 0
mprotect(0x4f9c1000, 4096, PROT_READ) = 0
mprotect(0x4f9a5000, 4096, PROT_READ) = 0
mprotect(0x4f9d4000, 4096, PROT_READ) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
{B38400 opost isig icanon echo ...}) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
{B38400 opost isig icanon echo ...}) = 0
brk(0) = 0x142dc390
brk(0x142e0390) = 0x142e0390
brk(0x142e1000) = 0x142e1000
socket(PF_NETLINK, SOCK_RAW, 12) = 3
bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
getsockname(3, {sa_family=AF_NETLINK, pid=11097, groups=00000000}, [12]) = 0
time(NULL) = 1334580838
sendto(3, "\34\0\0\0\1\6\1\0g\26\214O\0\0\0\0\2\0\0\0\5\0\1\0\6\0\0\0",
28, 0, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 28
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\34\0\0\0\1\6\0\0g\26\214OY+\0\0\2\0\0\0\5\0\1\0\6\0\0\0\0\0\0\0"...,
256}], msg_controllen=0, msg_flags=0}, 0) = 28
sendto(3,
"$\0\0\0\f\6\1\0h\26\214O\0\0\0\0\2\0\0\0\5\0\1\0\6\0\0\0\10\0\2\0"...,
36, 0, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 36
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"H\0\0\0\f\6\0\0h\26\214OY+\0\0\2\0\0\0\5\0\1\0\6\0\0\0\10\0\2\0"...,
256}], msg_controllen=0, msg_flags=0}, 0) = 72
socket(PF_NETLINK, SOCK_RAW, 0) = 4
bind(4, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
getsockname(4, {sa_family=AF_NETLINK, pid=11097, groups=00000000}, [12]) = 0
time(NULL) = 1334580838
sendto(4, "\24\0\0\0\22\0\1\3f\26\214O\0\0\0\0\0\0\0\0", 20, 0,
{sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\340\3\0\0\20\0\2\0f\26\214OY+\0\0\0\0\4\3\1\0\0\0I\0\1\0\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 3012
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\360\3\0\0\20\0\2\0f\26\214OY+\0\0\0\0\1\0\4\0\0\0\3\20\0\0\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 2996
brk(0x142e2000) = 0x142e2000
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\334\3\0\0\20\0\2\0f\26\214OY+\0\0\0\0\0\3\7\0\0\0\200\0\0\0\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 2988
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\360\3\0\0\20\0\2\0f\26\214OY+\0\0\0\0\1\0\n\0\0\0C\20\1\0\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 2984
brk(0x142e3000) = 0x142e3000
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\320\3\0\0\20\0\2\0f\26\214OY+\0\0\0\0\0\2\r\0\0\0\321\20\1\0\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 2972
brk(0x142e4000) = 0x142e4000
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\360\3\0\0\20\0\2\0f\26\214OY+\0\0\0\0\1\0\20\0\0\0C\20\1\0\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 1008
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\24\0\0\0\3\0\2\0f\26\214OY+\0\0\0\0\0\0\20\0\0\0C\20\1\0\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 20
sendto(4, "\24\0\0\0\26\0\1\3g\26\214O\0\0\0\0\0\0\0\0", 20, 0,
{sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"0\0\0\0\24\0\2\0g\26\214OY+\0\0\2\10\200\376\1\0\0\0\10\0\1\0\177\0\0\1"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 268
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"@\0\0\0\24\0\2\0g\26\214OY+\0\0\n\200\200\376\1\0\0\0\24\0\1\0\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 384
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\24\0\0\0\3\0\2\0g\26\214OY+\0\0\0\0\0\0\1\0\0\0\24\0\1\0\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 20
brk(0x142e5000) = 0x142e5000
close(4) = 0
open("/etc/hosts", O_RDONLY) = 4
ioctl(4, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x5cc842c8) = -1 ENOTTY (Inappropriate ioctl for device)
read(4, "# /etc/hosts: Local Host Databas"..., 4096) = 1061
read(4, "", 4096) = 0
close(4) = 0
stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=174, ...}) = 0
open("/etc/resolv.conf", O_RDONLY) = 4
ioctl(4, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
0x5cc83f70) = -1 ENOTTY (Inappropriate ioctl for device)
read(4, "# Generated by resolvconf\nsearch"..., 4096) = 174
read(4, "", 4096) = 0
close(4) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("127.0.0.1")}, 28) = 0
send(4, "\0\2\1\0\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"...,
45, 0) = 45
poll([{fd=4, events=POLLIN}], 1, 5000) = 1 ([{fd=4, revents=POLLIN}])
recv(4,
"\0\2\205\203\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"..., 512,
MSG_DONTWAIT) = 45
close(4) = 0
stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=174, ...}) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("127.0.0.1")}, 28) = 0
send(4, "\0\3\1\0\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"...,
65, 0) = 65
poll([{fd=4, events=POLLIN}], 1, 5000) = 0 (Timeout)
close(4) = 0
stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=174, ...}) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("192.168.105.212")}, 28) = 0
send(4, "\0\4\1\0\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"...,
45, 0) = 45
poll([{fd=4, events=POLLIN}], 1, 5000) = 0 (Timeout)
close(4) = 0
stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=174, ...}) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("8.8.8.8")}, 28) = 0
send(4, "\0\5\1\0\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"...,
45, 0) = 45
poll([{fd=4, events=POLLIN}], 1, 5000) = 0 (Timeout)
close(4) = 0
stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=174, ...}) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("8.8.4.4")}, 28) = 0
send(4, "\0\6\1\0\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"...,
45, 0) = 45
poll([{fd=4, events=POLLIN}], 1, 5000) = 0 (Timeout)
close(4) = 0
stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=174, ...}) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("127.0.0.1")}, 28) = 0
send(4, "\0\7\1\0\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"...,
45, 0) = 45
poll([{fd=4, events=POLLIN}], 1, 5000) = 1 ([{fd=4, revents=POLLIN}])
recv(4,
"\0\7\205\203\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"..., 512,
MSG_DONTWAIT) = 45
close(4) = 0
stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=174, ...}) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("127.0.0.1")}, 28) = 0
send(4, "\0\10\1\0\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"...,
65, 0) = 65
poll([{fd=4, events=POLLIN}], 1, 5000) = 0 (Timeout)
close(4) = 0
stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=174, ...}) = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("192.168.105.212")}, 28) = 0
send(4, "\0\t\1\0\0\1\0\0\0\0\0\0\00256\003105\003168\003192\7in-a"...,
45, 0) = 45
poll([{fd=4, events=POLLIN}], 1, 5000^C <unfinished ...>
next prev parent reply other threads:[~2012-04-16 13:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-15 23:26 ipset causes reverse dns lookups? Ed W
2012-04-16 1:15 ` Ed W
2012-04-16 3:23 ` Ed W
2012-04-16 8:08 ` Jozsef Kadlecsik
2012-04-16 8:37 ` Ed W
2012-04-16 9:55 ` Jozsef Kadlecsik
2012-04-16 13:08 ` Amos Jeffries
2012-04-16 13:21 ` Jozsef Kadlecsik
2012-04-16 13:14 ` Ed W [this message]
2012-04-16 13:20 ` Jozsef Kadlecsik
[not found] ` <4F8C1E78.6030202@wildgooses.com>
[not found] ` <alpine.DEB.2.00.1204161548170.20321@blackhole.kfki.hu>
2012-04-16 22:05 ` Ed W
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