Re: [mpls-linux-devel] MPLS & linux kernel 2.6.16.2

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Hello Marina,

Did you compile MPLS as a module?  Did you include IPv4 bindings for MPLS?
Did you load the mpls4 module?

On Tue, Jul 11, 2006 at 10:30:55PM +0200, Marina Mariano wrote:
> Hi Mr. Leu, hi everybody,
>=20
> I'm a Computer Software Engineer student and I'm developing my dissertati=
on
> on Load Balancing with MPLS routing.
>=20
> I'm trying to use the version 1.950 of the MPLS routing, but I'm facing s=
ome
> configuration problem after compiling the patch from the sources; I kindly
> ask you to help me in this phase.
>=20
> I'm using a Debian distribution with the following items:
> * Linux kernel v. 2.6.16.2
> * iproute2-2.6.16-060323
> * iptables-1.3.5
> * ebtables-v2.0.8-rc2
> * quagga-0.99.4
> and, of course, mpls-linux-1.950.
>=20
> I applied the patches to the kernel in the indicated order; I found some
> rejections (.rej), but I "easily" solved them by hands by slightly modify=
ing
> the source code (adding header files, removing ".owner"...)
>=20
> My configuration correctly shows the MPLS module as present; I compiled w=
ith
> no error and installed the new MPLS-powered kernel.
>=20
> Despite that, on invoking any MPLS operation (like mpls add nhlfe 0...). I
> get this message:
> RTNETLINK answers: invalid argument
>=20
> I'm sure that I'm missing something tremendously obvious!
>=20
> In the following, the systrace output for "mpls nhlfe add key 0" - hope it
> helps.
>=20
> Thank you in advance for any help.
> Best regards,
> Marina Mariano
>=20
> systrace begins....
>=20
> execve("/sbin/mpls", ["mpls", "nhlfe", "add", "key", "0"], [/* 28 vars */=
])
> =3D 0
> uname({sys=3D"Linux", node=3D"debian", ...}) =3D 0
> brk(0)                                  =3D 0x8053000
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,=
 0)
> =3D 0xb7f1c000
> access("/etc/ld.so.nohwcap", F_OK)      =3D -1 ENOENT (No such file or
> directory)
> open("/etc/ld.so.preload", O_RDONLY)    =3D -1 ENOENT (No such file or
> directory)
> open("/etc/ld.so.cache", O_RDONLY)      =3D 3
> fstat64(3, {st_mode=3DS_IFREG|0777, st_size=3D55830, ...}) =3D 0
> old_mmap(NULL, 55830, PROT_READ, MAP_PRIVATE, 3, 0) =3D 0xb7f0e000
> close(3)                                =3D 0
> access("/etc/ld.so.nohwcap", F_OK)      =3D -1 ENOENT (No such file or
> directory)
> open("/lib/tls/libm.so.6", O_RDONLY)    =3D 3
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\00005\0\000"..., 5=
12)
> =3D 512
> fstat64(3, {st_mode=3DS_IFREG|0777, st_size=3D134496, ...}) =3D 0
> old_mmap(NULL, 136976, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) =3D 0xb7ee=
c000
> old_mmap(0xb7f0d000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3,
> 0x20000) =3D 0xb7f0d000
> close(3)                                =3D 0
> access("/etc/ld.so.nohwcap", F_OK)      =3D -1 ENOENT (No such file or
> directory)
> open("/lib/tls/libresolv.so.2", O_RDONLY) =3D 3
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\220)\0"..., 512)=
 =3D
> 512
> fstat64(3, {st_mode=3DS_IFREG|0777, st_size=3D64924, ...}) =3D 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,=
 0)
> =3D 0xb7eeb000
> old_mmap(NULL, 73640, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) =3D 0xb7ed9=
000
> old_mmap(0xb7ee8000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3,
> 0xf000) =3D 0xb7ee8000
> old_mmap(0xb7ee9000, 8104, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) =3D 0xb7ee9000
> close(3)                                =3D 0
> access("/etc/ld.so.nohwcap", F_OK)      =3D -1 ENOENT (No such file or
> directory)
> open("/lib/tls/libc.so.6", O_RDONLY)    =3D 3
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`Z\1\000"..., 512=
) =3D
> 512
> fstat64(3, {st_mode=3DS_IFREG|0777, st_size=3D1254468, ...}) =3D 0
> old_mmap(NULL, 1264780, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) =3D 0xb7d=
a4000
> old_mmap(0xb7ece000, 36864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, =
3,
> 0x129000) =3D 0xb7ece000
> old_mmap(0xb7ed7000, 7308, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) =3D 0xb7ed7000
> close(3)                                =3D 0
> set_thread_area({entry_number:-1 -> 6, base_addr:0xb7eebb80, limit:104857=
5,
> seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1,
> seg_not_present:0, useable:1}) =3D 0
> munmap(0xb7f0e000, 55830)               =3D 0
> socket(PF_NETLINK, SOCK_RAW, 0)         =3D 3
> setsockopt(3, SOL_SOCKET, SO_SNDBUF, [32768], 4) =3D 0
> setsockopt(3, SOL_SOCKET, SO_RCVBUF, [32768], 4) =3D 0
> bind(3, {sa_family=3DAF_NETLINK, pid=3D0, groups=3D00000000}, 12) =3D 0
> getsockname(3, {sa_family=3DAF_NETLINK, pid=3D5298, groups=3D00000000}, [=
12]) =3D 0
> time(NULL)                              =3D 1152646179
> sendto(3, "\24\0\0\0\22\0\1\3$\374\263D\0\0\0\0\0\200\0\0", 20, 0,
> {sa_family=3DAF_NETLINK, pid=3D0, groups=3D00000000}, 12) =3D 20
> recvmsg(3, {msg_name(12)=3D{sa_family=3DAF_NETLINK, pid=3D0, groups=3D000=
00000},
> msg_iov(1)=3D[{"\344\0\0\0\20\0\2\0$\374\263D\262\24\0\0\0\0\4\3\1\0\0"..=
.,
> 16384}], msg_controllen=3D0, msg_flags=3D0}, 0) =3D 896
> brk(0)                                  =3D 0x8053000
> brk(0x8074000)                          =3D 0x8074000
> brk(0)                                  =3D 0x8074000
> recvmsg(3, {msg_name(12)=3D{sa_family=3DAF_NETLINK, pid=3D0, groups=3D000=
00000},
> msg_iov(1)=3D[{"\24\0\0\0\3\0\2\0$\374\263D\262\24\0\0\0\0\0\0\1\0\0\0"..=
.,
> 16384}], msg_controllen=3D0, msg_flags=3D0}, 0) =3D 20
> sendmsg(3, {msg_name(12)=3D{sa_family=3DAF_NETLINK, pid=3D0, groups=3D000=
00000},
> msg_iov(1)=3D[{"\204\10\0\0\20\0\1\4%\374\263D\0\0\0\0\36\0\0\0\0\0\0\0".=
..,
> 2180}], msg_controllen=3D0, msg_flags=3D0}, 0) =3D 2180
> recvmsg(3, {msg_name(12)=3D{sa_family=3DAF_NETLINK, pid=3D0, groups=3D000=
00000},
> msg_iov(1)=3D[{"$\0\0\0\2\0\0\0%\374\263D\262\24\0\0\352\377\377\377\204"=
...,
> 16384}], msg_controllen=3D0, msg_flags=3D0}, 0) =3D 36
> dup(2)                                  =3D 4
> fcntl64(4, F_GETFL)                     =3D 0x2 (flags O_RDWR)
> fstat64(4, {st_mode=3DS_IFCHR|0620, st_rdev=3Dmakedev(136, 1), ...}) =3D 0
> mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)=
 =3D
> 0xb7f1b000
> _llseek(4, 0, 0xbf92b508, SEEK_CUR)     =3D -1 ESPIPE (Illegal seek)
> write(4, "RTNETLINK answers: Invalid argum"..., 36) =3D 36
> close(4)                                =3D 0
> munmap(0xb7f1b000, 4096)                =3D 0
> exit_group(2)                           =3D ?

>=20
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--=20
James R. Leu
jl...@mi...