Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
In message <201910182216.x9img7wo032...@slippy.cwsent.com>, Cy Schubert writes: > In message <20191018183718.5e6b3...@hermann.fritz.box>, "Hartmann, O." > writes: > > --Sig_/icZw9PmU7w9Aj=UqDZhZj.c > > Content-Type: text/plain; charset=US-ASCII > > Content-Transfer-Encoding: quoted-printable > > > > On Fri, 18 Oct 2019 09:26:51 -0700 > > Cy Schubert wrote: > > > > > On October 18, 2019 8:54:06 AM PDT, "Hartmann, O." > > > wrote: > > > >On Fri, 18 Oct 2019 07:24:12 -0700 > > > >Cy Schubert wrote: > > > > =20 > > > >> In message <20191018160935.7dda6...@hermann.fritz.box>, "Hartmann, > > > >> O." writes: =20 > > > >> > --Sig_/QDD9BZgeMM6.TJkOIciNb32 > > > >> > Content-Type: text/plain; charset=3DUS-ASCII > > > >> > Content-Transfer-Encoding: quoted-printable > > > >> > > > > >> > On Fri, 18 Oct 2019 14:00:45 +0200 > > > >> > Gary Jennejohn wrote: > > > >> > =20 > > > >> > > On Fri, 18 Oct 2019 12:21:04 +0200 > > > >> > > "Hartmann, O." wrote: > > > >> > >=3D20 =20 > > > >> > > > On Thu, 17 Oct 2019 21:33:01 + (UTC) > > > >> > > > Conrad Meyer wrote: > > > >> > > > =3D20 =20 > > > >> > > > > Author: cem > > > >> > > > > Date: Thu Oct 17 21:33:01 2019 > > > >> > > > > New Revision: 353700 > > > >> > > > > URL: https://svnweb.freebsd.org/changeset/base/353700 > > > >> > > > >=3D20 > > > >> > > > > Log: > > > >> > > > > Implement NetGDB(4) > > > >> > > > > =3D20 > > > >> > > > > NetGDB(4) is a component of a system using a panic-time > > > >> > > > > network stack to remotely debug crashed FreeBSD kernels > > > >> > > > > over the network, instead of traditional serial interfaces. > > > >> > > > > =3D20 > > > >> > > > > There are three pieces in the complete NetGDB system. > > > >> > > > > =3D20 > > > >> > > > > First, a dedicated proxy server must be running to accept > > > >> > > > > connections from both NetGDB and gdb(1), and pass > > > >> > > > > bidirectional traffic between the two protocols. > > > >> > > > > =3D20 > > > >> > > > > Second, the NetGDB client is activated much like ordinary > > > >> > > > > 'gdb' and similarly to 'netdump' in ddb(4) after a panic. > > > >> > > > > Like other debugnet(4) clients (netdump(4)), the network > > > >> > > > > interface on the route to the proxy server must be online > > > >> > > > > and support debugnet(4). =3D20 > > > >> > > > > Finally, the remote (k)gdb(1) uses 'target remote > > > >> > > > > :' (like any other TCP remote) to connect to > > > >> > > > > the proxy server.=3D20 > > > >> > > > > The NetGDB v1 protocol speaks the literal GDB remote > > > >> > > > > serial protocol, and uses a 1:1 relationship between GDB > > > >> > > > > packets and sequences of debugnet packets (fragmented by > > > >> > > > > MTU). There is no encryption utilized to keep debugging > > > >> > > > > sessions private, so this is only appropriate for local > > > >> > > > > segments or trusted networks. =3D20 > > > >> > > > > Submitted by:John Reimer > > > >> > > > > (earlier version) Discussed some with: emaste, markj > > > >> > > > > Relnotes:sure > > > >> > > > > Differential Revision: > > > >> > > > > https://reviews.freebsd.org/D21568 > > > >> > > > >=3D20 > > > >> > > > > Added: > > > >> > > > > head/share/man/man4/netgdb.4 (contents, props changed) > > > >> > > > > head/sys/gdb/netgdb.c (contents, props changed) > > > >> > > > > head/sys/gdb/netgdb.h (contents, props changed) > > > >> > > > > Modified: > > > >> > > > > head/share/man/man4/Makefile > > > >> > > > > head/share/man/man4/ddb.4 > > > >> > > > > head/sys/amd64/conf/GENERIC > > > >> > > > > head/sys/conf/NOTES > > > >> > > > > head/sys/conf/files > > > >> > > > > head/sys/conf/options > > > >> > > > > head/sys/gdb/gdb.h > > > >> > > > > head/sys/gdb/gdb_int.h > > > >> > > > > head/sys/gdb/gdb_main.c > > > >> > > > > head/sys/gdb/gdb_packet.c > > > >> > > > > head/sys/i386/conf/GENERIC > > > >> > > > > head/sys/kern/subr_kdb.c > > > >> > > > > head/sys/net/debugnet.c > > > >> > > > > head/sys/net/debugnet.h > > > >> > > > > head/sys/net/debugnet_inet.c > > > >> > > > > head/sys/net/debugnet_int.h > > > >> > > > > head/sys/sys/kdb.h > > > >> > > > > head/sys/sys/param.h > > > >> > > > >=3D20 > > > >> > > > > Modified: head/share/man/man4/Makefile > > > >> > > > > =20 > > > >=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D= > > =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D > > > >=20 > > > >> > > > > =20 > > > >> > =20 > > > >=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D= > > =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D > > > >=20 > > > >> > =20 > > > >=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D= > > =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D > > > >=20 > > > >> > =3D3D=3D3D=3D3D=3D3D=3D3D =20 > > > >> > > > > --- head/share/man/man4/Makefile Thu Oct 17 21:25:50 > > > >> > > > > 2019 (r353699) +++
Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
In message <20191018183718.5e6b3...@hermann.fritz.box>, "Hartmann, O." writes: > --Sig_/icZw9PmU7w9Aj=UqDZhZj.c > Content-Type: text/plain; charset=US-ASCII > Content-Transfer-Encoding: quoted-printable > > On Fri, 18 Oct 2019 09:26:51 -0700 > Cy Schubert wrote: > > > On October 18, 2019 8:54:06 AM PDT, "Hartmann, O." > > wrote: > > >On Fri, 18 Oct 2019 07:24:12 -0700 > > >Cy Schubert wrote: > > > =20 > > >> In message <20191018160935.7dda6...@hermann.fritz.box>, "Hartmann, > > >> O." writes: =20 > > >> > --Sig_/QDD9BZgeMM6.TJkOIciNb32 > > >> > Content-Type: text/plain; charset=3DUS-ASCII > > >> > Content-Transfer-Encoding: quoted-printable > > >> > > > >> > On Fri, 18 Oct 2019 14:00:45 +0200 > > >> > Gary Jennejohn wrote: > > >> > =20 > > >> > > On Fri, 18 Oct 2019 12:21:04 +0200 > > >> > > "Hartmann, O." wrote: > > >> > >=3D20 =20 > > >> > > > On Thu, 17 Oct 2019 21:33:01 + (UTC) > > >> > > > Conrad Meyer wrote: > > >> > > > =3D20 =20 > > >> > > > > Author: cem > > >> > > > > Date: Thu Oct 17 21:33:01 2019 > > >> > > > > New Revision: 353700 > > >> > > > > URL: https://svnweb.freebsd.org/changeset/base/353700 > > >> > > > >=3D20 > > >> > > > > Log: > > >> > > > > Implement NetGDB(4) > > >> > > > > =3D20 > > >> > > > > NetGDB(4) is a component of a system using a panic-time > > >> > > > > network stack to remotely debug crashed FreeBSD kernels > > >> > > > > over the network, instead of traditional serial interfaces. > > >> > > > > =3D20 > > >> > > > > There are three pieces in the complete NetGDB system. > > >> > > > > =3D20 > > >> > > > > First, a dedicated proxy server must be running to accept > > >> > > > > connections from both NetGDB and gdb(1), and pass > > >> > > > > bidirectional traffic between the two protocols. > > >> > > > > =3D20 > > >> > > > > Second, the NetGDB client is activated much like ordinary > > >> > > > > 'gdb' and similarly to 'netdump' in ddb(4) after a panic. > > >> > > > > Like other debugnet(4) clients (netdump(4)), the network > > >> > > > > interface on the route to the proxy server must be online > > >> > > > > and support debugnet(4). =3D20 > > >> > > > > Finally, the remote (k)gdb(1) uses 'target remote > > >> > > > > :' (like any other TCP remote) to connect to > > >> > > > > the proxy server.=3D20 > > >> > > > > The NetGDB v1 protocol speaks the literal GDB remote > > >> > > > > serial protocol, and uses a 1:1 relationship between GDB > > >> > > > > packets and sequences of debugnet packets (fragmented by > > >> > > > > MTU). There is no encryption utilized to keep debugging > > >> > > > > sessions private, so this is only appropriate for local > > >> > > > > segments or trusted networks. =3D20 > > >> > > > > Submitted by: John Reimer > > >> > > > > (earlier version) Discussed some with: emaste, markj > > >> > > > > Relnotes: sure > > >> > > > > Differential Revision: > > >> > > > > https://reviews.freebsd.org/D21568 > > >> > > > >=3D20 > > >> > > > > Added: > > >> > > > > head/share/man/man4/netgdb.4 (contents, props changed) > > >> > > > > head/sys/gdb/netgdb.c (contents, props changed) > > >> > > > > head/sys/gdb/netgdb.h (contents, props changed) > > >> > > > > Modified: > > >> > > > > head/share/man/man4/Makefile > > >> > > > > head/share/man/man4/ddb.4 > > >> > > > > head/sys/amd64/conf/GENERIC > > >> > > > > head/sys/conf/NOTES > > >> > > > > head/sys/conf/files > > >> > > > > head/sys/conf/options > > >> > > > > head/sys/gdb/gdb.h > > >> > > > > head/sys/gdb/gdb_int.h > > >> > > > > head/sys/gdb/gdb_main.c > > >> > > > > head/sys/gdb/gdb_packet.c > > >> > > > > head/sys/i386/conf/GENERIC > > >> > > > > head/sys/kern/subr_kdb.c > > >> > > > > head/sys/net/debugnet.c > > >> > > > > head/sys/net/debugnet.h > > >> > > > > head/sys/net/debugnet_inet.c > > >> > > > > head/sys/net/debugnet_int.h > > >> > > > > head/sys/sys/kdb.h > > >> > > > > head/sys/sys/param.h > > >> > > > >=3D20 > > >> > > > > Modified: head/share/man/man4/Makefile > > >> > > > > =20 > > >=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D= > =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D > > >=20 > > >> > > > > =20 > > >> > =20 > > >=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D= > =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D > > >=20 > > >> > =20 > > >=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D= > =3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D3D=3D > > >=20 > > >> > =3D3D=3D3D=3D3D=3D3D=3D3D =20 > > >> > > > > --- head/share/man/man4/Makefile Thu Oct 17 21:25:50 > > >> > > > > 2019 (r353699) +++ head/share/man/man4/Makefile > > >> > > > > Thu Oct 17 21:33:01 2019 (r353700) @@ -307,6 +307,7 > > >> > > > > @@ MAN=3D3D aac.4 \ net80211.4 \ > > >> > > > > netdump.4 \ > > >> > > > > netfpga10g_nf10bmac.4 \ > > >> > > > > +netgdb.4 \ > > >> > > > > netgraph.4 \ > >
Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
On Fri, 18 Oct 2019 09:26:51 -0700
Cy Schubert wrote:
> On October 18, 2019 8:54:06 AM PDT, "Hartmann, O."
> wrote:
> >On Fri, 18 Oct 2019 07:24:12 -0700
> >Cy Schubert wrote:
> >
> >> In message <20191018160935.7dda6...@hermann.fritz.box>, "Hartmann,
> >> O." writes:
> >> > --Sig_/QDD9BZgeMM6.TJkOIciNb32
> >> > Content-Type: text/plain; charset=US-ASCII
> >> > Content-Transfer-Encoding: quoted-printable
> >> >
> >> > On Fri, 18 Oct 2019 14:00:45 +0200
> >> > Gary Jennejohn wrote:
> >> >
> >> > > On Fri, 18 Oct 2019 12:21:04 +0200
> >> > > "Hartmann, O." wrote:
> >> > >=20
> >> > > > On Thu, 17 Oct 2019 21:33:01 + (UTC)
> >> > > > Conrad Meyer wrote:
> >> > > > =20
> >> > > > > Author: cem
> >> > > > > Date: Thu Oct 17 21:33:01 2019
> >> > > > > New Revision: 353700
> >> > > > > URL: https://svnweb.freebsd.org/changeset/base/353700
> >> > > > >=20
> >> > > > > Log:
> >> > > > > Implement NetGDB(4)
> >> > > > > =20
> >> > > > > NetGDB(4) is a component of a system using a panic-time
> >> > > > > network stack to remotely debug crashed FreeBSD kernels
> >> > > > > over the network, instead of traditional serial interfaces.
> >> > > > > =20
> >> > > > > There are three pieces in the complete NetGDB system.
> >> > > > > =20
> >> > > > > First, a dedicated proxy server must be running to accept
> >> > > > > connections from both NetGDB and gdb(1), and pass
> >> > > > > bidirectional traffic between the two protocols.
> >> > > > > =20
> >> > > > > Second, the NetGDB client is activated much like ordinary
> >> > > > > 'gdb' and similarly to 'netdump' in ddb(4) after a panic.
> >> > > > > Like other debugnet(4) clients (netdump(4)), the network
> >> > > > > interface on the route to the proxy server must be online
> >> > > > > and support debugnet(4). =20
> >> > > > > Finally, the remote (k)gdb(1) uses 'target remote
> >> > > > > :' (like any other TCP remote) to connect to
> >> > > > > the proxy server.=20
> >> > > > > The NetGDB v1 protocol speaks the literal GDB remote
> >> > > > > serial protocol, and uses a 1:1 relationship between GDB
> >> > > > > packets and sequences of debugnet packets (fragmented by
> >> > > > > MTU). There is no encryption utilized to keep debugging
> >> > > > > sessions private, so this is only appropriate for local
> >> > > > > segments or trusted networks. =20
> >> > > > > Submitted by:John Reimer
> >> > > > > (earlier version) Discussed some with: emaste, markj
> >> > > > > Relnotes:sure
> >> > > > > Differential Revision:
> >> > > > > https://reviews.freebsd.org/D21568
> >> > > > >=20
> >> > > > > Added:
> >> > > > > head/share/man/man4/netgdb.4 (contents, props changed)
> >> > > > > head/sys/gdb/netgdb.c (contents, props changed)
> >> > > > > head/sys/gdb/netgdb.h (contents, props changed)
> >> > > > > Modified:
> >> > > > > head/share/man/man4/Makefile
> >> > > > > head/share/man/man4/ddb.4
> >> > > > > head/sys/amd64/conf/GENERIC
> >> > > > > head/sys/conf/NOTES
> >> > > > > head/sys/conf/files
> >> > > > > head/sys/conf/options
> >> > > > > head/sys/gdb/gdb.h
> >> > > > > head/sys/gdb/gdb_int.h
> >> > > > > head/sys/gdb/gdb_main.c
> >> > > > > head/sys/gdb/gdb_packet.c
> >> > > > > head/sys/i386/conf/GENERIC
> >> > > > > head/sys/kern/subr_kdb.c
> >> > > > > head/sys/net/debugnet.c
> >> > > > > head/sys/net/debugnet.h
> >> > > > > head/sys/net/debugnet_inet.c
> >> > > > > head/sys/net/debugnet_int.h
> >> > > > > head/sys/sys/kdb.h
> >> > > > > head/sys/sys/param.h
> >> > > > >=20
> >> > > > > Modified: head/share/man/man4/Makefile
> >> > > > >
> >=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> >
> >> > > > >
> >> >
> >=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> >
> >> >
> >=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> >
> >> > =3D=3D=3D=3D=3D
> >> > > > > --- head/share/man/man4/Makefile Thu Oct 17 21:25:50
> >> > > > > 2019 (r353699) +++ head/share/man/man4/Makefile
> >> > > > > Thu Oct 17 21:33:01 2019 (r353700) @@ -307,6 +307,7
> >> > > > > @@ MAN=3D aac.4 \ net80211.4 \
> >> > > > >netdump.4 \
> >> > > > >netfpga10g_nf10bmac.4 \
> >> > > > > + netgdb.4 \
> >> > > > >netgraph.4 \
> >> > > > >netintro.4 \
> >> > > > >netmap.4 \
> >> > > > >=20
> >> > > > [...]
> >> > > >=20
> >> > > >=20
> >> > > > Having "nooptions NETGDB # netgdb(4) client
> >> > > > support" defined in my kernel config file, buildkernel fails
> >> > > > with the error shown below.
> >> > > >=20
> >> > > > [...]
> >> > > > --- debugnet.o ---
> >> > > > /usr/src/sys/net/debugnet.c:662:4: error: implicit
> >> > > > declaration of function 'db_printf' is invalid in C99
> >> > > > [-Werror,-Wimplicit-function-declaration] db_printf("%s:
> >> > > > Could not get route for that server.\n", ^
> >> > > >
Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
On October 18, 2019 8:54:06 AM PDT, "Hartmann, O."
wrote:
>On Fri, 18 Oct 2019 07:24:12 -0700
>Cy Schubert wrote:
>
>> In message <20191018160935.7dda6...@hermann.fritz.box>, "Hartmann,
>> O." writes:
>> > --Sig_/QDD9BZgeMM6.TJkOIciNb32
>> > Content-Type: text/plain; charset=US-ASCII
>> > Content-Transfer-Encoding: quoted-printable
>> >
>> > On Fri, 18 Oct 2019 14:00:45 +0200
>> > Gary Jennejohn wrote:
>> >
>> > > On Fri, 18 Oct 2019 12:21:04 +0200
>> > > "Hartmann, O." wrote:
>> > >=20
>> > > > On Thu, 17 Oct 2019 21:33:01 + (UTC)
>> > > > Conrad Meyer wrote:
>> > > > =20
>> > > > > Author: cem
>> > > > > Date: Thu Oct 17 21:33:01 2019
>> > > > > New Revision: 353700
>> > > > > URL: https://svnweb.freebsd.org/changeset/base/353700
>> > > > >=20
>> > > > > Log:
>> > > > > Implement NetGDB(4)
>> > > > > =20
>> > > > > NetGDB(4) is a component of a system using a panic-time
>> > > > > network stack to remotely debug crashed FreeBSD kernels over
>> > > > > the network, instead of traditional serial interfaces.
>> > > > > =20
>> > > > > There are three pieces in the complete NetGDB system.
>> > > > > =20
>> > > > > First, a dedicated proxy server must be running to accept
>> > > > > connections from both NetGDB and gdb(1), and pass
>> > > > > bidirectional traffic between the two protocols.
>> > > > > =20
>> > > > > Second, the NetGDB client is activated much like ordinary
>> > > > > 'gdb' and similarly to 'netdump' in ddb(4) after a panic.
>> > > > > Like other debugnet(4) clients (netdump(4)), the network
>> > > > > interface on the route to the proxy server must be online and
>> > > > > support debugnet(4). =20
>> > > > > Finally, the remote (k)gdb(1) uses 'target remote
>> > > > > :' (like any other TCP remote) to connect to the
>> > > > > proxy server.=20
>> > > > > The NetGDB v1 protocol speaks the literal GDB remote serial
>> > > > > protocol, and uses a 1:1 relationship between GDB packets and
>> > > > > sequences of debugnet packets (fragmented by MTU). There is
>> > > > > no encryption utilized to keep debugging sessions private, so
>> > > > > this is only appropriate for local segments or trusted
>> > > > > networks. =20
>> > > > > Submitted by: John Reimer
>> > > > > (earlier version) Discussed some with: emaste, markj
>> > > > > Relnotes: sure
>> > > > > Differential Revision:
>> > > > > https://reviews.freebsd.org/D21568
>> > > > >=20
>> > > > > Added:
>> > > > > head/share/man/man4/netgdb.4 (contents, props changed)
>> > > > > head/sys/gdb/netgdb.c (contents, props changed)
>> > > > > head/sys/gdb/netgdb.h (contents, props changed)
>> > > > > Modified:
>> > > > > head/share/man/man4/Makefile
>> > > > > head/share/man/man4/ddb.4
>> > > > > head/sys/amd64/conf/GENERIC
>> > > > > head/sys/conf/NOTES
>> > > > > head/sys/conf/files
>> > > > > head/sys/conf/options
>> > > > > head/sys/gdb/gdb.h
>> > > > > head/sys/gdb/gdb_int.h
>> > > > > head/sys/gdb/gdb_main.c
>> > > > > head/sys/gdb/gdb_packet.c
>> > > > > head/sys/i386/conf/GENERIC
>> > > > > head/sys/kern/subr_kdb.c
>> > > > > head/sys/net/debugnet.c
>> > > > > head/sys/net/debugnet.h
>> > > > > head/sys/net/debugnet_inet.c
>> > > > > head/sys/net/debugnet_int.h
>> > > > > head/sys/sys/kdb.h
>> > > > > head/sys/sys/param.h
>> > > > >=20
>> > > > > Modified: head/share/man/man4/Makefile
>> > > > >
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>> > > > >
>> >
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>> >
>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>> > =3D=3D=3D=3D=3D
>> > > > > --- head/share/man/man4/Makefile Thu Oct 17 21:25:50
>> > > > > 2019 (r353699) +++ head/share/man/man4/Makefile
>> > > > > Thu Oct 17 21:33:01 2019 (r353700) @@ -307,6 +307,7 @@
>> > > > > MAN=3D aac.4 \ net80211.4 \
>> > > > > netdump.4 \
>> > > > > netfpga10g_nf10bmac.4 \
>> > > > > +netgdb.4 \
>> > > > > netgraph.4 \
>> > > > > netintro.4 \
>> > > > > netmap.4 \
>> > > > >=20
>> > > > [...]
>> > > >=20
>> > > >=20
>> > > > Having "nooptions NETGDB # netgdb(4) client
>> > > > support" defined in my kernel config file, buildkernel fails
>> > > > with the error shown below.
>> > > >=20
>> > > > [...]
>> > > > --- debugnet.o ---
>> > > > /usr/src/sys/net/debugnet.c:662:4: error: implicit declaration
>> > > > of function 'db_printf' is invalid in C99
>> > > > [-Werror,-Wimplicit-function-declaration] db_printf("%s: Could
>> > > > not get route for that server.\n", ^
>> > > > /usr/src/sys/net/debugnet.c:662:4: note: did you mean
>> > > > 'if_printf'? /usr/src/sys/net/if_var.h:679:5: note: 'if_printf'
>> > > > declared here int if_printf(struct ifnet *, const char *,
>> > > > ...) __printflike(2, 3); ^ 1 error generated. =20
>> > >=20
>> > > And I also had to add "nooptions NETDUMP" to get the kernel to
>> > >
Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
On Fri, 18 Oct 2019 07:24:12 -0700
Cy Schubert wrote:
> In message <20191018160935.7dda6...@hermann.fritz.box>, "Hartmann,
> O." writes:
> > --Sig_/QDD9BZgeMM6.TJkOIciNb32
> > Content-Type: text/plain; charset=US-ASCII
> > Content-Transfer-Encoding: quoted-printable
> >
> > On Fri, 18 Oct 2019 14:00:45 +0200
> > Gary Jennejohn wrote:
> >
> > > On Fri, 18 Oct 2019 12:21:04 +0200
> > > "Hartmann, O." wrote:
> > >=20
> > > > On Thu, 17 Oct 2019 21:33:01 + (UTC)
> > > > Conrad Meyer wrote:
> > > > =20
> > > > > Author: cem
> > > > > Date: Thu Oct 17 21:33:01 2019
> > > > > New Revision: 353700
> > > > > URL: https://svnweb.freebsd.org/changeset/base/353700
> > > > >=20
> > > > > Log:
> > > > > Implement NetGDB(4)
> > > > > =20
> > > > > NetGDB(4) is a component of a system using a panic-time
> > > > > network stack to remotely debug crashed FreeBSD kernels over
> > > > > the network, instead of traditional serial interfaces.
> > > > > =20
> > > > > There are three pieces in the complete NetGDB system.
> > > > > =20
> > > > > First, a dedicated proxy server must be running to accept
> > > > > connections from both NetGDB and gdb(1), and pass
> > > > > bidirectional traffic between the two protocols.
> > > > > =20
> > > > > Second, the NetGDB client is activated much like ordinary
> > > > > 'gdb' and similarly to 'netdump' in ddb(4) after a panic.
> > > > > Like other debugnet(4) clients (netdump(4)), the network
> > > > > interface on the route to the proxy server must be online and
> > > > > support debugnet(4). =20
> > > > > Finally, the remote (k)gdb(1) uses 'target remote
> > > > > :' (like any other TCP remote) to connect to the
> > > > > proxy server.=20
> > > > > The NetGDB v1 protocol speaks the literal GDB remote serial
> > > > > protocol, and uses a 1:1 relationship between GDB packets and
> > > > > sequences of debugnet packets (fragmented by MTU). There is
> > > > > no encryption utilized to keep debugging sessions private, so
> > > > > this is only appropriate for local segments or trusted
> > > > > networks. =20
> > > > > Submitted by: John Reimer
> > > > > (earlier version) Discussed some with:emaste, markj
> > > > > Relnotes: sure
> > > > > Differential Revision:
> > > > > https://reviews.freebsd.org/D21568
> > > > >=20
> > > > > Added:
> > > > > head/share/man/man4/netgdb.4 (contents, props changed)
> > > > > head/sys/gdb/netgdb.c (contents, props changed)
> > > > > head/sys/gdb/netgdb.h (contents, props changed)
> > > > > Modified:
> > > > > head/share/man/man4/Makefile
> > > > > head/share/man/man4/ddb.4
> > > > > head/sys/amd64/conf/GENERIC
> > > > > head/sys/conf/NOTES
> > > > > head/sys/conf/files
> > > > > head/sys/conf/options
> > > > > head/sys/gdb/gdb.h
> > > > > head/sys/gdb/gdb_int.h
> > > > > head/sys/gdb/gdb_main.c
> > > > > head/sys/gdb/gdb_packet.c
> > > > > head/sys/i386/conf/GENERIC
> > > > > head/sys/kern/subr_kdb.c
> > > > > head/sys/net/debugnet.c
> > > > > head/sys/net/debugnet.h
> > > > > head/sys/net/debugnet_inet.c
> > > > > head/sys/net/debugnet_int.h
> > > > > head/sys/sys/kdb.h
> > > > > head/sys/sys/param.h
> > > > >=20
> > > > > Modified: head/share/man/man4/Makefile
> > > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> > > > >
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> > =3D=3D=3D=3D=3D
> > > > > --- head/share/man/man4/Makefile Thu Oct 17 21:25:50
> > > > > 2019 (r353699) +++ head/share/man/man4/Makefile
> > > > > Thu Oct 17 21:33:01 2019 (r353700) @@ -307,6 +307,7 @@
> > > > > MAN=3D aac.4 \ net80211.4 \
> > > > > netdump.4 \
> > > > > netfpga10g_nf10bmac.4 \
> > > > > + netgdb.4 \
> > > > > netgraph.4 \
> > > > > netintro.4 \
> > > > > netmap.4 \
> > > > >=20
> > > > [...]
> > > >=20
> > > >=20
> > > > Having "nooptions NETGDB # netgdb(4) client
> > > > support" defined in my kernel config file, buildkernel fails
> > > > with the error shown below.
> > > >=20
> > > > [...]
> > > > --- debugnet.o ---
> > > > /usr/src/sys/net/debugnet.c:662:4: error: implicit declaration
> > > > of function 'db_printf' is invalid in C99
> > > > [-Werror,-Wimplicit-function-declaration] db_printf("%s: Could
> > > > not get route for that server.\n", ^
> > > > /usr/src/sys/net/debugnet.c:662:4: note: did you mean
> > > > 'if_printf'? /usr/src/sys/net/if_var.h:679:5: note: 'if_printf'
> > > > declared here int if_printf(struct ifnet *, const char *,
> > > > ...) __printflike(2, 3); ^ 1 error generated. =20
> > >=20
> > > And I also had to add "nooptions NETDUMP" to get the kernel to
> > > compile and link.
> > >=20
> >
> > I already had "nooptions NETDUMP" defined.
>
>
> This will fix it.
>
> Index: sys/net/debugnet.c
>
Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
In message <20191018160935.7dda6...@hermann.fritz.box>, "Hartmann, O."
writes:
> --Sig_/QDD9BZgeMM6.TJkOIciNb32
> Content-Type: text/plain; charset=US-ASCII
> Content-Transfer-Encoding: quoted-printable
>
> On Fri, 18 Oct 2019 14:00:45 +0200
> Gary Jennejohn wrote:
>
> > On Fri, 18 Oct 2019 12:21:04 +0200
> > "Hartmann, O." wrote:
> >=20
> > > On Thu, 17 Oct 2019 21:33:01 + (UTC)
> > > Conrad Meyer wrote:
> > > =20
> > > > Author: cem
> > > > Date: Thu Oct 17 21:33:01 2019
> > > > New Revision: 353700
> > > > URL: https://svnweb.freebsd.org/changeset/base/353700
> > > >=20
> > > > Log:
> > > > Implement NetGDB(4)
> > > > =20
> > > > NetGDB(4) is a component of a system using a panic-time network
> > > > stack to remotely debug crashed FreeBSD kernels over the network,
> > > > instead of traditional serial interfaces.
> > > > =20
> > > > There are three pieces in the complete NetGDB system.
> > > > =20
> > > > First, a dedicated proxy server must be running to accept
> > > > connections from both NetGDB and gdb(1), and pass bidirectional
> > > > traffic between the two protocols.
> > > > =20
> > > > Second, the NetGDB client is activated much like ordinary 'gdb'
> > > > and similarly to 'netdump' in ddb(4) after a panic. Like other
> > > > debugnet(4) clients (netdump(4)), the network interface on the
> > > > route to the proxy server must be online and support debugnet(4).
> > > > =20
> > > > Finally, the remote (k)gdb(1) uses 'target remote
> > > > :' (like any other TCP remote) to connect to the
> > > > proxy server.=20
> > > > The NetGDB v1 protocol speaks the literal GDB remote serial
> > > > protocol, and uses a 1:1 relationship between GDB packets and
> > > > sequences of debugnet packets (fragmented by MTU). There is no
> > > > encryption utilized to keep debugging sessions private, so this is
> > > > only appropriate for local segments or trusted networks.
> > > > =20
> > > > Submitted by: John Reimer
> > > > (earlier version) Discussed some with: emaste, markj
> > > > Relnotes: sure
> > > > Differential Revision:https://reviews.freebsd.org/D21568
> > > >=20
> > > > Added:
> > > > head/share/man/man4/netgdb.4 (contents, props changed)
> > > > head/sys/gdb/netgdb.c (contents, props changed)
> > > > head/sys/gdb/netgdb.h (contents, props changed)
> > > > Modified:
> > > > head/share/man/man4/Makefile
> > > > head/share/man/man4/ddb.4
> > > > head/sys/amd64/conf/GENERIC
> > > > head/sys/conf/NOTES
> > > > head/sys/conf/files
> > > > head/sys/conf/options
> > > > head/sys/gdb/gdb.h
> > > > head/sys/gdb/gdb_int.h
> > > > head/sys/gdb/gdb_main.c
> > > > head/sys/gdb/gdb_packet.c
> > > > head/sys/i386/conf/GENERIC
> > > > head/sys/kern/subr_kdb.c
> > > > head/sys/net/debugnet.c
> > > > head/sys/net/debugnet.h
> > > > head/sys/net/debugnet_inet.c
> > > > head/sys/net/debugnet_int.h
> > > > head/sys/sys/kdb.h
> > > > head/sys/sys/param.h
> > > >=20
> > > > Modified: head/share/man/man4/Makefile
> > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
> =3D=3D=3D=3D=3D
> > > > --- head/share/man/man4/MakefileThu Oct 17 21:25:50
> > > > 2019(r353699) +++ head/share/man/man4/Makefile Thu
> > > > Oct 17 21:33:01 2019(r353700) @@ -307,6 +307,7 @@ MAN=3D
> > > > aac.4 \ net80211.4 \
> > > > netdump.4 \
> > > > netfpga10g_nf10bmac.4 \
> > > > + netgdb.4 \
> > > > netgraph.4 \
> > > > netintro.4 \
> > > > netmap.4 \
> > > >=20
> > > [...]
> > >=20
> > >=20
> > > Having "nooptions NETGDB # netgdb(4) client support"
> > > defined in my kernel config file, buildkernel fails with the error
> > > shown below.
> > >=20
> > > [...]
> > > --- debugnet.o ---
> > > /usr/src/sys/net/debugnet.c:662:4: error: implicit declaration of
> > > function 'db_printf' is invalid in C99
> > > [-Werror,-Wimplicit-function-declaration] db_printf("%s: Could not
> > > get route for that server.\n", ^ /usr/src/sys/net/debugnet.c:662:4:
> > > note: did you mean 'if_printf'? /usr/src/sys/net/if_var.h:679:5:
> > > note: 'if_printf' declared here int if_printf(struct ifnet *,
> > > const char *, ...) __printflike(2, 3); ^
> > > 1 error generated. =20
> >=20
> > And I also had to add "nooptions NETDUMP" to get the kernel to compile
> > and link.
> >=20
>
> I already had "nooptions NETDUMP" defined.
This will fix it.
Index: sys/net/debugnet.c
===
--- sys/net/debugnet.c (revision 353717)
+++ sys/net/debugnet.c (working copy)
@@ -659,8 +659,10 @@
CURVNET_RESTORE();
if (dest_rt == NULL) {
+#ifdef DDB
db_printf("%s: Could not get route for that server.\n",
Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
On Fri, 18 Oct 2019 14:00:45 +0200
Gary Jennejohn wrote:
> On Fri, 18 Oct 2019 12:21:04 +0200
> "Hartmann, O." wrote:
>
> > On Thu, 17 Oct 2019 21:33:01 + (UTC)
> > Conrad Meyer wrote:
> >
> > > Author: cem
> > > Date: Thu Oct 17 21:33:01 2019
> > > New Revision: 353700
> > > URL: https://svnweb.freebsd.org/changeset/base/353700
> > >
> > > Log:
> > > Implement NetGDB(4)
> > >
> > > NetGDB(4) is a component of a system using a panic-time network
> > > stack to remotely debug crashed FreeBSD kernels over the network,
> > > instead of traditional serial interfaces.
> > >
> > > There are three pieces in the complete NetGDB system.
> > >
> > > First, a dedicated proxy server must be running to accept
> > > connections from both NetGDB and gdb(1), and pass bidirectional
> > > traffic between the two protocols.
> > >
> > > Second, the NetGDB client is activated much like ordinary 'gdb'
> > > and similarly to 'netdump' in ddb(4) after a panic. Like other
> > > debugnet(4) clients (netdump(4)), the network interface on the
> > > route to the proxy server must be online and support debugnet(4).
> > >
> > > Finally, the remote (k)gdb(1) uses 'target remote
> > > :' (like any other TCP remote) to connect to the
> > > proxy server.
> > > The NetGDB v1 protocol speaks the literal GDB remote serial
> > > protocol, and uses a 1:1 relationship between GDB packets and
> > > sequences of debugnet packets (fragmented by MTU). There is no
> > > encryption utilized to keep debugging sessions private, so this is
> > > only appropriate for local segments or trusted networks.
> > >
> > > Submitted by: John Reimer
> > > (earlier version) Discussed some with:emaste, markj
> > > Relnotes: sure
> > > Differential Revision: https://reviews.freebsd.org/D21568
> > >
> > > Added:
> > > head/share/man/man4/netgdb.4 (contents, props changed)
> > > head/sys/gdb/netgdb.c (contents, props changed)
> > > head/sys/gdb/netgdb.h (contents, props changed)
> > > Modified:
> > > head/share/man/man4/Makefile
> > > head/share/man/man4/ddb.4
> > > head/sys/amd64/conf/GENERIC
> > > head/sys/conf/NOTES
> > > head/sys/conf/files
> > > head/sys/conf/options
> > > head/sys/gdb/gdb.h
> > > head/sys/gdb/gdb_int.h
> > > head/sys/gdb/gdb_main.c
> > > head/sys/gdb/gdb_packet.c
> > > head/sys/i386/conf/GENERIC
> > > head/sys/kern/subr_kdb.c
> > > head/sys/net/debugnet.c
> > > head/sys/net/debugnet.h
> > > head/sys/net/debugnet_inet.c
> > > head/sys/net/debugnet_int.h
> > > head/sys/sys/kdb.h
> > > head/sys/sys/param.h
> > >
> > > Modified: head/share/man/man4/Makefile
> > > ==
> > > --- head/share/man/man4/Makefile Thu Oct 17 21:25:50
> > > 2019 (r353699) +++ head/share/man/man4/Makefile Thu
> > > Oct 17 21:33:01 2019 (r353700) @@ -307,6 +307,7 @@ MAN=
> > > aac.4 \ net80211.4 \
> > > netdump.4 \
> > > netfpga10g_nf10bmac.4 \
> > > + netgdb.4 \
> > > netgraph.4 \
> > > netintro.4 \
> > > netmap.4 \
> > >
> > [...]
> >
> >
> > Having "nooptions NETGDB # netgdb(4) client support"
> > defined in my kernel config file, buildkernel fails with the error
> > shown below.
> >
> > [...]
> > --- debugnet.o ---
> > /usr/src/sys/net/debugnet.c:662:4: error: implicit declaration of
> > function 'db_printf' is invalid in C99
> > [-Werror,-Wimplicit-function-declaration] db_printf("%s: Could not
> > get route for that server.\n", ^ /usr/src/sys/net/debugnet.c:662:4:
> > note: did you mean 'if_printf'? /usr/src/sys/net/if_var.h:679:5:
> > note: 'if_printf' declared here int if_printf(struct ifnet *,
> > const char *, ...) __printflike(2, 3); ^
> > 1 error generated.
>
> And I also had to add "nooptions NETDUMP" to get the kernel to compile
> and link.
>
I already had "nooptions NETDUMP" defined.
pgpY92aPh4_Ii.pgp
Description: OpenPGP digital signature
Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
On Fri, Oct 18, 2019 at 7:00 AM Gary Jennejohn wrote:
>
> On Fri, 18 Oct 2019 12:21:04 +0200
> "Hartmann, O." wrote:
>
> > On Thu, 17 Oct 2019 21:33:01 + (UTC)
> > Conrad Meyer wrote:
> >
> > > Author: cem
> > > Date: Thu Oct 17 21:33:01 2019
> > > New Revision: 353700
> > > URL: https://svnweb.freebsd.org/changeset/base/353700
> > >
> > > Log:
> > > Implement NetGDB(4)
> > >
> > > NetGDB(4) is a component of a system using a panic-time network
> > > stack to remotely debug crashed FreeBSD kernels over the network,
> > > instead of traditional serial interfaces.
> > >
> > > There are three pieces in the complete NetGDB system.
> > >
> > > First, a dedicated proxy server must be running to accept
> > > connections from both NetGDB and gdb(1), and pass bidirectional
> > > traffic between the two protocols.
> > >
> > > Second, the NetGDB client is activated much like ordinary 'gdb' and
> > > similarly to 'netdump' in ddb(4) after a panic. Like other
> > > debugnet(4) clients (netdump(4)), the network interface on the route
> > > to the proxy server must be online and support debugnet(4).
> > >
> > > Finally, the remote (k)gdb(1) uses 'target remote :'
> > > (like any other TCP remote) to connect to the proxy server.
> > >
> > > The NetGDB v1 protocol speaks the literal GDB remote serial
> > > protocol, and uses a 1:1 relationship between GDB packets and
> > > sequences of debugnet packets (fragmented by MTU). There is no
> > > encryption utilized to keep debugging sessions private, so this is
> > > only appropriate for local segments or trusted networks.
> > >
> > > Submitted by: John Reimer (earlier
> > > version) Discussed some with: emaste, markj
> > > Relnotes: sure
> > > Differential Revision:https://reviews.freebsd.org/D21568
> > >
> > > Added:
> > > head/share/man/man4/netgdb.4 (contents, props changed)
> > > head/sys/gdb/netgdb.c (contents, props changed)
> > > head/sys/gdb/netgdb.h (contents, props changed)
> > > Modified:
> > > head/share/man/man4/Makefile
> > > head/share/man/man4/ddb.4
> > > head/sys/amd64/conf/GENERIC
> > > head/sys/conf/NOTES
> > > head/sys/conf/files
> > > head/sys/conf/options
> > > head/sys/gdb/gdb.h
> > > head/sys/gdb/gdb_int.h
> > > head/sys/gdb/gdb_main.c
> > > head/sys/gdb/gdb_packet.c
> > > head/sys/i386/conf/GENERIC
> > > head/sys/kern/subr_kdb.c
> > > head/sys/net/debugnet.c
> > > head/sys/net/debugnet.h
> > > head/sys/net/debugnet_inet.c
> > > head/sys/net/debugnet_int.h
> > > head/sys/sys/kdb.h
> > > head/sys/sys/param.h
> > >
> > > Modified: head/share/man/man4/Makefile
> > > ==
> > > --- head/share/man/man4/MakefileThu Oct 17 21:25:50
> > > 2019(r353699) +++ head/share/man/man4/Makefile Thu Oct
> > > 17 21:33:01 2019(r353700) @@ -307,6 +307,7 @@ MAN=
> > > aac.4 \ net80211.4 \
> > > netdump.4 \
> > > netfpga10g_nf10bmac.4 \
> > > + netgdb.4 \
> > > netgraph.4 \
> > > netintro.4 \
> > > netmap.4 \
> > >
> > [...]
> >
> >
> > Having "nooptions NETGDB # netgdb(4) client support"
> > defined in my kernel config file, buildkernel fails with the error
> > shown below.
> >
> > [...]
> > --- debugnet.o ---
> > /usr/src/sys/net/debugnet.c:662:4: error: implicit declaration of
> > function 'db_printf' is invalid in C99
> > [-Werror,-Wimplicit-function-declaration] db_printf("%s: Could not get
> > route for that server.\n", ^ /usr/src/sys/net/debugnet.c:662:4: note:
> > did you mean 'if_printf'? /usr/src/sys/net/if_var.h:679:5: note:
> > 'if_printf' declared here int if_printf(struct ifnet *, const char
> > *, ...) __printflike(2, 3); ^
> > 1 error generated.
>
> And I also had to add "nooptions NETDUMP" to get the kernel to compile
> and link.
>
diff --git a/sys/conf/files b/sys/conf/files
index e47fe27466c..4bc5770e08c 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -4298,7 +4298,7 @@ netinet/libalias/alias_mod.c optional
libalias | netgraph_nat
netinet/libalias/alias_proxy.c optional libalias inet | netgraph_nat inet
netinet/libalias/alias_util.c optional libalias inet | netgraph_nat inet
netinet/libalias/alias_sctp.c optional libalias inet | netgraph_nat inet
-netinet/netdump/netdump_client.c optional inet netdump
+netinet/netdump/netdump_client.c optional inet debugnet netdump
netinet6/dest6.c optional inet6
netinet6/frag6.c optional inet6
netinet6/icmp6.c optional inet6
That should fix that one.
Thanks,
Kyle Evans
___
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Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
On Fri, 18 Oct 2019 12:21:04 +0200
"Hartmann, O." wrote:
> On Thu, 17 Oct 2019 21:33:01 + (UTC)
> Conrad Meyer wrote:
>
> > Author: cem
> > Date: Thu Oct 17 21:33:01 2019
> > New Revision: 353700
> > URL: https://svnweb.freebsd.org/changeset/base/353700
> >
> > Log:
> > Implement NetGDB(4)
> >
> > NetGDB(4) is a component of a system using a panic-time network
> > stack to remotely debug crashed FreeBSD kernels over the network,
> > instead of traditional serial interfaces.
> >
> > There are three pieces in the complete NetGDB system.
> >
> > First, a dedicated proxy server must be running to accept
> > connections from both NetGDB and gdb(1), and pass bidirectional
> > traffic between the two protocols.
> >
> > Second, the NetGDB client is activated much like ordinary 'gdb' and
> > similarly to 'netdump' in ddb(4) after a panic. Like other
> > debugnet(4) clients (netdump(4)), the network interface on the route
> > to the proxy server must be online and support debugnet(4).
> >
> > Finally, the remote (k)gdb(1) uses 'target remote :'
> > (like any other TCP remote) to connect to the proxy server.
> >
> > The NetGDB v1 protocol speaks the literal GDB remote serial
> > protocol, and uses a 1:1 relationship between GDB packets and
> > sequences of debugnet packets (fragmented by MTU). There is no
> > encryption utilized to keep debugging sessions private, so this is
> > only appropriate for local segments or trusted networks.
> >
> > Submitted by: John Reimer (earlier
> > version) Discussed some with: emaste, markj
> > Relnotes: sure
> > Differential Revision:https://reviews.freebsd.org/D21568
> >
> > Added:
> > head/share/man/man4/netgdb.4 (contents, props changed)
> > head/sys/gdb/netgdb.c (contents, props changed)
> > head/sys/gdb/netgdb.h (contents, props changed)
> > Modified:
> > head/share/man/man4/Makefile
> > head/share/man/man4/ddb.4
> > head/sys/amd64/conf/GENERIC
> > head/sys/conf/NOTES
> > head/sys/conf/files
> > head/sys/conf/options
> > head/sys/gdb/gdb.h
> > head/sys/gdb/gdb_int.h
> > head/sys/gdb/gdb_main.c
> > head/sys/gdb/gdb_packet.c
> > head/sys/i386/conf/GENERIC
> > head/sys/kern/subr_kdb.c
> > head/sys/net/debugnet.c
> > head/sys/net/debugnet.h
> > head/sys/net/debugnet_inet.c
> > head/sys/net/debugnet_int.h
> > head/sys/sys/kdb.h
> > head/sys/sys/param.h
> >
> > Modified: head/share/man/man4/Makefile
> > ==
> > --- head/share/man/man4/MakefileThu Oct 17 21:25:50
> > 2019(r353699) +++ head/share/man/man4/Makefile Thu Oct
> > 17 21:33:01 2019(r353700) @@ -307,6 +307,7 @@ MAN=
> > aac.4 \ net80211.4 \
> > netdump.4 \
> > netfpga10g_nf10bmac.4 \
> > + netgdb.4 \
> > netgraph.4 \
> > netintro.4 \
> > netmap.4 \
> >
> [...]
>
>
> Having "nooptions NETGDB # netgdb(4) client support"
> defined in my kernel config file, buildkernel fails with the error
> shown below.
>
> [...]
> --- debugnet.o ---
> /usr/src/sys/net/debugnet.c:662:4: error: implicit declaration of
> function 'db_printf' is invalid in C99
> [-Werror,-Wimplicit-function-declaration] db_printf("%s: Could not get
> route for that server.\n", ^ /usr/src/sys/net/debugnet.c:662:4: note:
> did you mean 'if_printf'? /usr/src/sys/net/if_var.h:679:5: note:
> 'if_printf' declared here int if_printf(struct ifnet *, const char
> *, ...) __printflike(2, 3); ^
> 1 error generated.
And I also had to add "nooptions NETDUMP" to get the kernel to compile
and link.
--
Gary Jennejohn
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Re: svn commit: r353700 - in head: share/man/man4 sys/amd64/conf sys/conf sys/gdb sys/i386/conf sys/kern sys/net sys/sys
On Thu, 17 Oct 2019 21:33:01 + (UTC)
Conrad Meyer wrote:
> Author: cem
> Date: Thu Oct 17 21:33:01 2019
> New Revision: 353700
> URL: https://svnweb.freebsd.org/changeset/base/353700
>
> Log:
> Implement NetGDB(4)
>
> NetGDB(4) is a component of a system using a panic-time network
> stack to remotely debug crashed FreeBSD kernels over the network,
> instead of traditional serial interfaces.
>
> There are three pieces in the complete NetGDB system.
>
> First, a dedicated proxy server must be running to accept
> connections from both NetGDB and gdb(1), and pass bidirectional
> traffic between the two protocols.
>
> Second, the NetGDB client is activated much like ordinary 'gdb' and
> similarly to 'netdump' in ddb(4) after a panic. Like other
> debugnet(4) clients (netdump(4)), the network interface on the route
> to the proxy server must be online and support debugnet(4).
>
> Finally, the remote (k)gdb(1) uses 'target remote :'
> (like any other TCP remote) to connect to the proxy server.
>
> The NetGDB v1 protocol speaks the literal GDB remote serial
> protocol, and uses a 1:1 relationship between GDB packets and
> sequences of debugnet packets (fragmented by MTU). There is no
> encryption utilized to keep debugging sessions private, so this is
> only appropriate for local segments or trusted networks.
>
> Submitted by: John Reimer (earlier
> version) Discussed some with: emaste, markj
> Relnotes: sure
> Differential Revision: https://reviews.freebsd.org/D21568
>
> Added:
> head/share/man/man4/netgdb.4 (contents, props changed)
> head/sys/gdb/netgdb.c (contents, props changed)
> head/sys/gdb/netgdb.h (contents, props changed)
> Modified:
> head/share/man/man4/Makefile
> head/share/man/man4/ddb.4
> head/sys/amd64/conf/GENERIC
> head/sys/conf/NOTES
> head/sys/conf/files
> head/sys/conf/options
> head/sys/gdb/gdb.h
> head/sys/gdb/gdb_int.h
> head/sys/gdb/gdb_main.c
> head/sys/gdb/gdb_packet.c
> head/sys/i386/conf/GENERIC
> head/sys/kern/subr_kdb.c
> head/sys/net/debugnet.c
> head/sys/net/debugnet.h
> head/sys/net/debugnet_inet.c
> head/sys/net/debugnet_int.h
> head/sys/sys/kdb.h
> head/sys/sys/param.h
>
> Modified: head/share/man/man4/Makefile
> ==
> --- head/share/man/man4/Makefile Thu Oct 17 21:25:50
> 2019 (r353699) +++ head/share/man/man4/Makefile Thu Oct
> 17 21:33:01 2019 (r353700) @@ -307,6 +307,7 @@ MAN=
> aac.4 \ net80211.4 \
> netdump.4 \
> netfpga10g_nf10bmac.4 \
> + netgdb.4 \
> netgraph.4 \
> netintro.4 \
> netmap.4 \
>
[...]
Having "nooptions NETGDB # netgdb(4) client support"
defined in my kernel config file, buildkernel fails with the error
shown below.
[...]
--- debugnet.o ---
/usr/src/sys/net/debugnet.c:662:4: error: implicit declaration of
function 'db_printf' is invalid in C99
[-Werror,-Wimplicit-function-declaration] db_printf("%s: Could not get
route for that server.\n", ^ /usr/src/sys/net/debugnet.c:662:4: note:
did you mean 'if_printf'? /usr/src/sys/net/if_var.h:679:5: note:
'if_printf' declared here int if_printf(struct ifnet *, const char
*, ...) __printflike(2, 3); ^
1 error generated.
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