Adding support for TCP over UDP allows communication with
TCP stacks which can be implemented in userspace without
requiring special priviledges or specific support by the OS.
This is joint work with rrs.
Reviewed by: rrs
Sponsored by: Netflix, Inc.
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D29469
sockstat can "hang" on getpwuid() calls in situations when FreeBSD
is joined to a directory service (AD/LDAP etc) and the directory
service fail to answer in a timely manner when trying to resolve
numeric UIDs to user names.
Submitted by: Caleb St. John <caleb@ixsystems.com>
MFC after: 1 week
Attach sockstat -j to the specified jail if the jail is in a new vnet.
Otherwise we do not see all sockets belonging to the jail.
Reviewed by: jamie
Approved by: mmacy (mentor)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D24413
Replace size_t members with ksize_t (uint64_t) and pointer members
(never used as pointers in userspace, but instead as unique
idenitifiers) with kvaddr_t (uint64_t). This makes the structs
identical between 32-bit and 64-bit ABIs.
On 64-bit bit systems, the ABI is maintained. On 32-bit systems,
this is an ABI breaking change. The ABI of most of these structs
was previously broken in r315662. This also imposes a small API
change on userspace consumers who must handle kernel pointers
becoming virtual addresses.
PR: 228301 (exp-run by antoine)
Reviewed by: jtl, kib, rwatson (various versions)
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D15386
sockstat(1), ugidfw(8)
These are the last of the jail-aware userland utilities that didn't work
with names.
PR: 229266
MFC after: 3 days
Differential Revision: D16047
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
No functional change intended.
Violators may define _WANT_SOCKET and _WANT_UNPCB respectively and
are not guaranteed for stability of the structures. The violators
list is the the usual one: libprocstat(3) and netstat(1) internally
and lsof in ports.
In struct xunpcb remove the inclusion of kernel structure and add
a bunch of spare fields. The xsocket already has socket not included,
but add there spares as well. Embed xsockbuf into xsocket.
Sort declarations in sys/socketvar.h to separate kernel only from
userland available ones.
PR: 221820 (exp-run)
addresses. This allows the table to be consistent when IPv6
addresses have to be printed.
While there, document the -v option in the man page.
Sponsored by: Netflix, Inc.
This is a painful change, but it is needed. On the one hand, we avoid
modifying them, and this slows down some ideas, on the other hand we still
eventually modify them and tools like netstat(1) never work on next version of
FreeBSD. We maintain a ton of spares in them, and we already got some ifdef
hell at the end of tcpcb.
Details:
- Hide struct inpcb, struct tcpcb under _KERNEL || _WANT_FOO.
- Make struct xinpcb, struct xtcpcb pure API structures, not including
kernel structures inpcb and tcpcb inside. Export into these structures
the fields from inpcb and tcpcb that are known to be used, and put there
a ton of spare space.
- Make kernel and userland utilities compilable after these changes.
- Bump __FreeBSD_version.
Reviewed by: rrs, gnn
Differential Revision: D10018
* sctp46, tcp46, and udp46 sockets are displayed as such and not as
sctp4 6, tcp4 6, udp4 6. This bug was introduced in
http://svnweb.freebsd.org/base?view=revision&revision=187915
* For SCTP sockets, the the -4 and -6 flags are honoured as much as
possible. This means IPv4 sockets are handled correctly, IPv6
sockets are displayed as sctp46, since it is currently not possible
to distinguish between sctp6 and sctp46.
Approved by: re (gjb)
MFC after: 1 week
- Stateful TCP offload drivers for Terminator 3 and 4 (T3 and T4) ASICs.
These are available as t3_tom and t4_tom modules that augment cxgb(4)
and cxgbe(4) respectively. The cxgb/cxgbe drivers continue to work as
usual with or without these extra features.
- iWARP driver for Terminator 3 ASIC (kernel verbs). T4 iWARP in the
works and will follow soon.
Build-tested with make universe.
30s overview
============
What interfaces support TCP offload? Look for TOE4 and/or TOE6 in the
capabilities of an interface:
# ifconfig -m | grep TOE
Enable/disable TCP offload on an interface (just like any other ifnet
capability):
# ifconfig cxgbe0 toe
# ifconfig cxgbe0 -toe
Which connections are offloaded? Look for toe4 and/or toe6 in the
output of netstat and sockstat:
# netstat -np tcp | grep toe
# sockstat -46c | grep toe
Reviewed by: bz, gnn
Sponsored by: Chelsio communications.
MFC after: ~3 months (after 9.1, and after ensuring MFC is feasible)
checking the returned oldlen: when ENOMEM is due to the supplied
buffer being too short the return oldlen is equal to buffer size.
Without this additional check sockstat gets stuck in loop leaking the
memory if the returned ENOMEM was due the exceeded memorylocked
limit. This is easily can be observed running `limits -l 1k sockstat'.
Submitted by: Andrey Zonov <andrey zonov org>
MFC after: 1 week
Sockets not associated with a file descriptor include TCP TIME_WAIT states
and sockets created via the socket(9) API such as from rpc.lockd and the NFS
client.
PR: bin/164081
MFC after: 2 weeks
No objection: des
This makes a tiny percentage of entries in calendars ugly for latin1
users, but fixes them for UTF-8 users.
This badly needs a solution involving locale-dependent re-encoding.
addresses (most of them apart from ::1): put a whitespace
between local and remote address:port pairs.
PR: bin/145194
Submitted by: Fedor Dikarev
MFC after: 2 weeks
in6p_ip6_nxt
in6p_vflag
in6p_flags
in6p_socket
in6p_lport
in6p_fport
in6p_ppcb
Remove unused v6 macro aliases for inpcb flags:
IN6P_HIGHPORT
IN6P_LOWPORT
IN6P_ANONPORT
IN6P_RECVIF
IN6P_MTUDISC
IN6P_FAITH
IN6P_CONTROLOPTS
References to in6p_lport and in6_fport in sockstat are also replaced with
normal inp_lport and inp_fport references.
MFC after: 3 days
Reviewed by: bz
Using either one of the two would result in an empty protos[]
array, and no sockets were actually listed:
% sockstat -4
USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS
% sockstat -6
USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS
%
Fix this bug by tweaking appropriately the logic of handling opt_4,
opt_6, opt_u and protos_defined.
Submitted by: des
Pointy hat: keramida
