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

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On Wed, Jul 12, 2006 at 08:16:12PM +0200, Marina Mariano wrote:
> Hi James,
>=20
> actually I compiled MPLS as a part of the kernel, not as a Module (by
> chosing Yes in .config). I tried also to compile and load it as a separate
> module but it didn't work.
>=20
> I also loaded as separate modules mpls4 and ipt_mpls.
> Is that enough to include IPv4 binding or I'm still missing something??

I'm not sure having MPLS compiled in and mpls4 as a module will work
(I've never tried it).  If your going to compile MPLS into the kernel you
probably should compile mpls4 in as well.  ipt_mpls is not needed
unless your going to use iptables to map traffic onto LSPs.  mpls and mpls4
allow for using the iproute2 commands to map traffic onto a LSP.

BTW if your interested in contributing your research back to the project
I might have some suggestions as to where you should hook into the
mpls stack.

> Thanks a lot for your precious information,
> Marina
>=20
>=20
> 2006/7/11, James R. Leu <jl...@mi...>:
> >
> >Hello Marina,
> >
> >Did you compile MPLS as a module?  Did you include IPv4 bindings for MPL=
S?
> >Did you load the mpls4 module?
> >
> >On Tue, Jul 11, 2006 at 10:30:55PM +0200, Marina Mariano wrote:
> >> Hi Mr. Leu, hi everybody,
> >>
> >> I'm a Computer Software Engineer student and I'm developing my
> >dissertation
> >> on Load Balancing with MPLS routing.
> >>
> >> I'm trying to use the version 1.950 of the MPLS routing, but I'm facing
> >some
> >> configuration problem after compiling the patch from the sources; I
> >kindly
> >> ask you to help me in this phase.
> >>
> >> 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.
> >>
> >> I applied the patches to the kernel in the indicated order; I found so=
me
> >> rejections (.rej), but I "easily" solved them by hands by slightly
> >modifying
> >> the source code (adding header files, removing ".owner"...)
> >>
> >> My configuration correctly shows the MPLS module as present; I compiled
> >with
> >> no error and installed the new MPLS-powered kernel.
> >>
> >> Despite that, on invoking any MPLS operation (like mpls add nhlfe 0...=
).
> >I
> >> get this message:
> >> RTNETLINK answers: invalid argument
> >>
> >> I'm sure that I'm missing something tremendously obvious!
> >>
> >> In the following, the systrace output for "mpls nhlfe add key 0" - hope
> >it
> >> helps.
> >>
> >> Thank you in advance for any help.
> >> Best regards,
> >> Marina Mariano
> >>
> >> systrace begins....
> >>
> >> 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"...,
> >512)
> >> =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
> >0xb7eec000
> >> 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
> >0xb7ed9000
> >> 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
> >0xb7da4000
> >> old_mmap(0xb7ece000, 36864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXE=
D,
> >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:1048575,
> >> 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$\374\263D\0\0\0\0\0\200\0\0", 20, 0,
> >> {sa_family=3DAF_NETLINK, pid=3D0, groups=3D00000000}, 12) =3D 20
> >> recvmsg(3, {msg_name(12)=3D{sa_family=3DAF_NETLINK, pid=3D0, groups=3D=
00000000},
> >>
> >msg_iov(1)=3D[{"\344\0\0\0\20\0\2\0$\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=3D=
00000000},
> >>
> >msg_iov(1)=3D[{"\24\0\0\0\3\0\2\0$\374\263D\262\24\0\0\0\0\0\0\1\0\0\0".=
..,
> >> 16384}], msg_controllen=3D0, msg_flags=3D0}, 0) =3D 20
> >> sendmsg(3, {msg_name(12)=3D{sa_family=3DAF_NETLINK, pid=3D0, groups=3D=
00000000},
> >>
> >msg_iov(1)=3D[{"\204\10\0\0\20\0\1\4%\374\263D\0\0\0\0\36\0\0\0\0\0\0\0"=
...,
> >> 2180}], msg_controllen=3D0, msg_flags=3D0}, 0) =3D 2180
> >> recvmsg(3, {msg_name(12)=3D{sa_family=3DAF_NETLINK, pid=3D0, groups=3D=
00000000},
> >>
> >msg_iov(1)=3D[{"$\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 ?
> >
> >>
> >>
> >-------------------------------------------------------------------------
> >> Using Tomcat but need to do more? Need to support web services,
> >security?
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> >easier
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> >Geronimo
> >> http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&da=
t=3D121642
> >
> >> _______________________________________________
> >> mpls-linux-devel mailing list
> >> mpl...@li...
> >> https://lists.sourceforge.net/lists/listinfo/mpls-linux-devel
> >
> >
> >--
> >James R. Leu
> >jl...@mi...
> >
> >
> >

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