#
60d8dbbe |
|
18-Jan-2024 |
Kristof Provost <kp@FreeBSD.org> |
netinet: add a probe point for IP, IP6, ICMP, ICMP6, UDP and TCP stats counters When debugging network issues one common clue is an unexpectedly incrementing error counter. This is helpful, in that it gives us an idea of what might be going wrong, but often these counters may be incremented in different functions. Add a static probe point for them so that we can use dtrace to get futher information (e.g. a stack trace). For example: dtrace -n 'mib:ip:count: { printf("%d", arg0); stack(); }' This can be disabled by setting the following kernel option: options KDTRACE_NO_MIB_SDT Reviewed by: gallatin, tuexen (previous version), gnn (previous version) Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D43504
|
#
5bba2728 |
|
16-Jan-2024 |
Gleb Smirnoff <glebius@FreeBSD.org> |
sockets: make pr_shutdown fully protocol specific method Disassemble a one-for-all soshutdown() into protocol specific methods. This creates a small amount of copy & paste, but makes code a lot more self documented, as protocol specific method would execute only the code that is relevant to that protocol and nothing else. This also fixes a couple recent regressions and reduces risk of future regressions. The extended KPI for the new pr_shutdown removes need for the extra pr_flush which was added for the sake of SCTP which could not perform its shutdown properly with the old one. Particularly for SCTP this change streamlines a lot of code. Some notes on why certain parts of code were copied or were not to certain protocols: * The (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING) check is needed only for those protocols that may be connected or disconnected. * The above reduces into only SS_ISCONNECTED for those protocols that always connect instantly. * The ENOTCONN and continue processing hack is left only for datagram protocols. * The SOLISTENING(so) block is copied to those protocols that listen(2). * sorflush() on SHUT_RD is copied almost to every protocol, but that will be refactored later. * wakeup(&so->so_timeo) is copied to protocols that can make a non-instant connect(2), can SO_LINGER or can accept(2). There are three protocols (netgraph(4), Bluetooth, SDP) that did not have pr_shutdown, but old soshutdown() would still perform sorflush() on SHUT_RD for them and also wakeup(9). Those protocols partially supported shutdown(2) returning EOPNOTSUP for SHUT_WR/SHUT_RDWR, now they fully lost shutdown(2) support. I'm pretty sure netgraph(4) and Bluetooth are okay about that and SDP is almost abandoned anyway. Reviewed by: tuexen Differential Revision: https://reviews.freebsd.org/D43413
|
#
29363fb4 |
|
23-Nov-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove ancient SCCS tags. Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
|
#
2ff63af9 |
|
16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: one-line .h pattern Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/
|
#
1aed3b34 |
|
07-Dec-2022 |
Gleb Smirnoff <glebius@FreeBSD.org> |
udp: add protocol method declarations to udp_var.h They are shared between UDP over IPv4 and over IPv6. To prevent all possible kernel build failures wrap them in #ifdef _SYS_PROTOSW_H_. Prompted by feedback from jhb@ and jrtc27@ on c93db4abf454.
|
#
483fe965 |
|
07-Dec-2022 |
Gleb Smirnoff <glebius@FreeBSD.org> |
udp: embed inpcb into udpcb See similar change to TCP e68b3792440 for more context. For UDP the change is much simplier, though.
|
#
0c0d8a4f |
|
07-Dec-2022 |
Gleb Smirnoff <glebius@FreeBSD.org> |
udp: rearrange declarations in udp_var.h into user and _KERNEL halves Bring everything that belongs to _KERNEL into single block. Move sub-includes to its beginning.
|
#
fcb3f813 |
|
03-Oct-2022 |
Gleb Smirnoff <glebius@FreeBSD.org> |
netinet*: remove PRC_ constants and streamline ICMP processing In the original design of the network stack from the protocol control input method pr_ctlinput was used notify the protocols about two very different kinds of events: internal system events and receival of an ICMP messages from outside. These events were coded with PRC_ codes. Today these methods are removed from the protosw(9) and are isolated to IPv4 and IPv6 stacks and are called only from icmp*_input(). The PRC_ codes now just create a shim layer between ICMP codes and errors or actions taken by protocols. - Change ipproto_ctlinput_t to pass just pointer to ICMP header. This allows protocols to not deduct it from the internal IP header. - Change ip6proto_ctlinput_t to pass just struct ip6ctlparam pointer. It has all the information needed to the protocols. In the structure, change ip6c_finaldst fields to sockaddr_in6. The reason is that icmp6_input() already has this address wrapped in sockaddr, and the protocols want this address as sockaddr. - For UDP tunneling control input, as well as for IPSEC control input, change the prototypes to accept a transparent union of either ICMP header pointer or struct ip6ctlparam pointer. - In icmp_input() and icmp6_input() do only validation of ICMP header and count bad packets. The translation of ICMP codes to errors/actions is done by protocols. - Provide icmp_errmap() and icmp6_errmap() as substitute to inetctlerrmap, inet6ctlerrmap arrays. - In protocol ctlinput methods either trust what icmp_errmap() recommend, or do our own logic based on the ICMP header. Differential revision: https://reviews.freebsd.org/D36731
|
#
bb77f0c2 |
|
03-Oct-2022 |
Gleb Smirnoff <glebius@FreeBSD.org> |
udp: typedef udp tunneling functions to functions, not pointers With this change one can make a forward declaration of a function that is of UDP tunneling type. Reviewed by: melifaro Differential revision: https://reviews.freebsd.org/D36724
|
#
e7d02be1 |
|
17-Aug-2022 |
Gleb Smirnoff <glebius@FreeBSD.org> |
protosw: refactor protosw and domain static declaration and load o Assert that every protosw has pr_attach. Now this structure is only for socket protocols declarations and nothing else. o Merge struct pr_usrreqs into struct protosw. This was suggested in 1996 by wollman@ (see 7b187005d18ef), and later reiterated in 2006 by rwatson@ (see 6fbb9cf860dcd). o Make struct domain hold a variable sized array of protosw pointers. For most protocols these pointers are initialized statically. Those domains that may have loadable protocols have spacers. IPv4 and IPv6 have 8 spacers each (andre@ dff3237ee54ea). o For inetsw and inet6sw leave a comment noting that many protosw entries very likely are dead code. o Refactor pf_proto_[un]register() into protosw_[un]register(). o Isolate pr_*_notsupp() methods into uipc_domain.c Reviewed by: melifaro Differential revision: https://reviews.freebsd.org/D36232
|
#
78b1fc05 |
|
17-Aug-2022 |
Gleb Smirnoff <glebius@FreeBSD.org> |
protosw: separate pr_input and pr_ctlinput out of protosw The protosw KPI historically has implemented two quite orthogonal things: protocols that implement a certain kind of socket, and protocols that are IPv4/IPv6 protocol. These two things do not make one-to-one correspondence. The pr_input and pr_ctlinput methods were utilized only in IP protocols. This strange duality required IP protocols that doesn't have a socket to declare protosw, e.g. carp(4). On the other hand developers of socket protocols thought that they need to define pr_input/pr_ctlinput always, which lead to strange dead code, e.g. div_input() or sdp_ctlinput(). With this change pr_input and pr_ctlinput as part of protosw disappear and IPv4/IPv6 get their private single level protocol switch table ip_protox[] and ip6_protox[] respectively, pointing at array of ipproto_input_t functions. The pr_ctlinput that was used for control input coming from the network (ICMP, ICMPv6) is now represented by ip_ctlprotox[] and ip6_ctlprotox[]. ipproto_register() becomes the only official way to register in the table. Those protocols that were always static and unlikely anybody is interested in making them loadable, are now registered by ip_init(), ip6_init(). An IP protocol that considers itself unloadable shall register itself within its own private SYSINIT(). Reviewed by: tuexen, melifaro Differential revision: https://reviews.freebsd.org/D36157
|
#
742e7210 |
|
11-Apr-2022 |
Kristof Provost <kp@FreeBSD.org> |
udp: allow udp_tun_func_t() to indicate it did not eat the packet Allow udp tunnel functions to indicate they have not taken ownership of the packet, and that normal UDP processing should continue. This is especially useful for scenarios where the kernel has taken ownership of a socket that was originally created by userspace. It allows the tunnel function to pass through certain packets for userspace processing. The primary user of this is if_ovpn, when it receives messages from unknown peers (which might be a new client). Reviewed by: tuexen Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D34883
|
#
89128ff3 |
|
03-Jan-2022 |
Gleb Smirnoff <glebius@FreeBSD.org> |
protocols: init with standard SYSINIT(9) or VNET_SYSINIT The historical BSD network stack loop that rolls over domains and over protocols has no advantages over more modern SYSINIT(9). While doing the sweep, split global and per-VNET initializers. Getting rid of pr_init allows to achieve several things: o Get rid of ifdef's that protect against double foo_init() when both INET and INET6 are compiled in. o Isolate initializers statically to the module they init. o Makes code easier to understand and maintain. Reviewed by: melifaro Differential revision: https://reviews.freebsd.org/D33537
|
#
80871aeb |
|
03-Jan-2022 |
Kristof Provost <kp@FreeBSD.org> |
udp_var.h: other headers already include types.h Pointed out by: imp Sponsored by: Rubicon Communications, LLC ("Netgate")
|
#
aa70361d |
|
24-Dec-2021 |
Kristof Provost <kp@FreeBSD.org> |
headers: make a few more headers self-contained Sponsored by: Rubicon Communications, LLC ("Netgate")
|
#
db0ac6de |
|
02-Dec-2021 |
Cy Schubert <cy@FreeBSD.org> |
Revert "wpa: Import wpa_supplicant/hostapd commit 14ab4a816" This reverts commit 266f97b5e9a7958e365e78288616a459b40d924a, reversing changes made to a10253cffea84c0c980a36ba6776b00ed96c3e3b. A mismerge of a merge to catch up to main resulted in files being committed which should not have been.
|
#
de2d4784 |
|
02-Dec-2021 |
Gleb Smirnoff <glebius@FreeBSD.org> |
SMR protection for inpcbs With introduction of epoch(9) synchronization to network stack the inpcb database became protected by the network epoch together with static network data (interfaces, addresses, etc). However, inpcb aren't static in nature, they are created and destroyed all the time, which creates some traffic on the epoch(9) garbage collector. Fairly new feature of uma(9) - Safe Memory Reclamation allows to safely free memory in page-sized batches, with virtually zero overhead compared to uma_zfree(). However, unlike epoch(9), it puts stricter requirement on the access to the protected memory, needing the critical(9) section to access it. Details: - The database is already build on CK lists, thanks to epoch(9). - For write access nothing is changed. - For a lookup in the database SMR section is now required. Once the desired inpcb is found we need to transition from SMR section to r/w lock on the inpcb itself, with a check that inpcb isn't yet freed. This requires some compexity, since SMR section itself is a critical(9) section. The complexity is hidden from KPI users in inp_smr_lock(). - For a inpcb list traversal (a pcblist sysctl, or broadcast notification) also a new KPI is provided, that hides internals of the database - inp_next(struct inp_iterator *). Reviewed by: rrs Differential revision: https://reviews.freebsd.org/D33022
|
#
3ea9a7cf |
|
28-Oct-2021 |
Gleb Smirnoff <glebius@FreeBSD.org> |
blackhole(4): disable for locally originated TCP/UDP packets In most cases blackholing for locally originated packets is undesired, leads to different kind of lags and delays. Provide sysctls to enforce it, e.g. for debugging purposes. Reviewed by: rrs Differential revision: https://reviews.freebsd.org/D32718
|
#
72cc43df |
|
17-Sep-2020 |
Navdeep Parhar <np@FreeBSD.org> |
Add a knob to allow zero UDP checksums for UDP/IPv6 traffic on the given UDP port. This will be used by some upcoming changes to if_vxlan(4). RFC 7348 (VXLAN) says that the UDP checksum "SHOULD be transmitted as zero. When a packet is received with a UDP checksum of zero, it MUST be accepted for decapsulation." But the original IPv6 RFCs did not allow zero UDP checksum. RFC 6935 attempts to resolve this. Reviewed by: kib@ Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D25873
|
#
481be5de |
|
12-Feb-2020 |
Randall Stewart <rrs@FreeBSD.org> |
White space cleanup -- remove trailing tab's or spaces from any line. Sponsored by: Netflix Inc.
|
#
334fc582 |
|
08-Jan-2020 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
vnet: virtualise more network stack sysctls. Virtualise tcp_always_keepalive, TCP and UDP log_in_vain. All three are set in the netoptions startup script, which we would love to run for VNETs as well [1]. While virtualising the log_in_vain sysctls seems pointles at first for as long as the kernel message buffer is not virtualised, it at least allows an administrator to debug the base system or an individual jail if needed without turning the logging on for all jails running on a system. PR: 243193 [1] MFC after: 2 weeks
|
#
51369649 |
|
20-Nov-2017 |
Pedro F. Giffuni <pfg@FreeBSD.org> |
sys: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 3-Clause license. 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. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
|
#
fbbd9655 |
|
28-Feb-2017 |
Warner Losh <imp@FreeBSD.org> |
Renumber copyright clause 4 Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
|
#
3f58662d |
|
01-Jun-2016 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
The pr_destroy field does not allow us to run the teardown code in a specific order. VNET_SYSUNINITs however are doing exactly that. Thus remove the VIMAGE conditional field from the domain(9) protosw structure and replace it with VNET_SYSUNINITs. This also allows us to change some order and to make the teardown functions file local static. Also convert divert(4) as it uses the same mechanism ip(4) and ip6(4) use internally. Slightly reshuffle the SI_SUB_* fields in kernel.h and add a new ones, e.g., for pfil consumers (firewalls), partially for this commit and for others to come. Reviewed by: gnn, tuexen (sctp), jhb (kernel.h) Obtained from: projects/vnet MFC after: 2 weeks X-MFC: do not remove pr_destroy Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D6652
|
#
abb901c5 |
|
28-Apr-2016 |
Randall Stewart <rrs@FreeBSD.org> |
Complete the UDP tunneling of ICMP msgs to those protocols interested in having tunneled UDP and finding out about the ICMP (tested by Michael Tuexen with SCTP.. soon to be using this feature). Differential Revision: http://reviews.freebsd.org/D5875
|
#
1f12da0e |
|
22-Jan-2016 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
Just checkpoint the WIP in order to be able to make the tree update easier. Note: this is currently not in a usable state as certain teardown parts are not called and the DOMAIN rework is missing. More to come soon and find its way to head. Obtained from: P4 //depot/user/bz/vimage/... Sponsored by: The FreeBSD Foundation
|
#
a86e5c96 |
|
27-Aug-2015 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
get_inpcbinfo() and get_pcblist() are UDP local functions and do not do what one would expect by name. Prefix them with "udp_" to at least obviously limit the scope. This is a non-functional change. Reviewed by: gnn, rwatson MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D3505
|
#
81d3ec17 |
|
10-Oct-2014 |
Bryan Venteicher <bryanv@FreeBSD.org> |
Add context pointer and source address to the UDP tunnel callback These are needed for the forthcoming vxlan implementation. The context pointer means we do not have to use a spare pointer field in the inpcb, and the source address is required to populate vxlan's forwarding table. While I highly doubt there is an out of tree consumer of the UDP tunneling callback, this change may be a difficult to eventually MFC. Phabricator: https://reviews.freebsd.org/D383 Reviewed by: gnn
|
#
8f5a8818 |
|
07-Aug-2014 |
Kevin Lo <kevlo@FreeBSD.org> |
Merge 'struct ip6protosw' and 'struct protosw' into one. Now we have only one protocol switch structure that is shared between ipv4 and ipv6. Phabric: D476 Reviewed by: jhb
|
#
71c92ff8 |
|
02-Jun-2014 |
Kevin Lo <kevlo@FreeBSD.org> |
Fix build UDP-Lite with VIMAGE enabled when building with gcc. Reported and tested by: Jason Hellenthal
|
#
d1b18731 |
|
06-Apr-2014 |
Kevin Lo <kevlo@FreeBSD.org> |
Minor style cleanups.
|
#
e06e816f |
|
06-Apr-2014 |
Kevin Lo <kevlo@FreeBSD.org> |
Add support for UDP-Lite protocol (RFC 3828) to IPv4 and IPv6 stacks. Tested with vlc and a test suite [1]. [1] http://www.erg.abdn.ac.uk/~gerrit/udp-lite/files/udplite_linux.tar.gz Reviewed by: jhb, glebius, adrian
|
#
5b26ea5d |
|
25-Feb-2014 |
John Baldwin <jhb@FreeBSD.org> |
Remove more constants related to static sysctl nodes. The MAXID constants were primarily used to size the sysctl name list macros that were removed in r254295. A few other constants either did not have an associated sysctl node, or the associated node used OID_AUTO instead. PR: ports/184525 (exp-run)
|
#
fd77bbb9 |
|
26-Aug-2013 |
John Baldwin <jhb@FreeBSD.org> |
Remove most of the remaining sysctl name list macros. They were only ever intended for use in sysctl(8) and it has not used them for many years. Reviewed by: bde Tested by: exp-run by bdrewery
|
#
57f60867 |
|
25-Aug-2013 |
Mark Johnston <markj@FreeBSD.org> |
Implement the ip, tcp, and udp DTrace providers. The probe definitions use dynamic translation so that their arguments match the definitions for these providers in Solaris and illumos. Thus, existing scripts for these providers should work unmodified on FreeBSD. Tested by: gnn, hiren MFC after: 1 month
|
#
5b7cb97c |
|
09-Jul-2013 |
Andrey V. Elsukov <ae@FreeBSD.org> |
Migrate structs arpstat, icmpstat, mrtstat, pimstat and udpstat to PCPU counters.
|
#
c80211e3 |
|
09-Jul-2013 |
Andrey V. Elsukov <ae@FreeBSD.org> |
Prepare network statistics structures for migration to PCPU counters. Use uint64_t as type for all fields of structures. Changed structures: ahstat, arpstat, espstat, icmp6_ifstat, icmp6stat, in6_ifstat, ip6stat, ipcompstat, ipipstat, ipsecstat, mrt6stat, mrtstat, pfkeystat, pim6stat, pimstat, rip6stat, udpstat. Discussed with: arch@
|
#
40b676be |
|
27-Mar-2012 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
Export the udp_cksum sysctl for upcoming SCTP work. Rather than always, SCTP will only do IPv4 UDP checksum calculation as defined by the host policy. When tunneling SCTP always calculates the inner checksum already so not doing the outer UDP can save cycles. While here virtualize the variable. Requested by: tuexen MFC after: 2 weeks
|
#
3fa41755 |
|
16-Oct-2011 |
Ed Schouten <ed@FreeBSD.org> |
Forward declare mbuf and inpcb. This fixes a compiler warning at WARNS=6 when including the header files as follows: #include <sys/types.h> #include <netinet/in.h> #include <netinet/ip_var.h> #include <netinet/udp.h> #include <netinet/udp_var.h>
|
#
79e955ed |
|
07-Jan-2011 |
John Baldwin <jhb@FreeBSD.org> |
Trim extra spaces before tabs.
|
#
a7d5f7eb |
|
19-Oct-2010 |
Jamie Gritton <jamie@FreeBSD.org> |
A new jail(8) with a configuration file, to replace the work currently done by /etc/rc.d/jail.
|
#
480d7c6c |
|
06-May-2010 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
MFC r207369: MFP4: @176978-176982, 176984, 176990-176994, 177441 "Whitspace" churn after the VIMAGE/VNET whirls. Remove the need for some "init" functions within the network stack, like pim6_init(), icmp_init() or significantly shorten others like ip6_init() and nd6_init(), using static initialization again where possible and formerly missed. Move (most) variables back to the place they used to be before the container structs and VIMAGE_GLOABLS (before r185088) and try to reduce the diff to stable/7 and earlier as good as possible, to help out-of-tree consumers to update from 6.x or 7.x to 8 or 9. This also removes some header file pollution for putatively static global variables. Revert VIMAGE specific changes in ipfilter::ip_auth.c, that are no longer needed. Reviewed by: jhb Discussed with: rwatson Sponsored by: The FreeBSD Foundation Sponsored by: CK Software GmbH
|
#
82cea7e6 |
|
29-Apr-2010 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
MFP4: @176978-176982, 176984, 176990-176994, 177441 "Whitspace" churn after the VIMAGE/VNET whirls. Remove the need for some "init" functions within the network stack, like pim6_init(), icmp_init() or significantly shorten others like ip6_init() and nd6_init(), using static initialization again where possible and formerly missed. Move (most) variables back to the place they used to be before the container structs and VIMAGE_GLOABLS (before r185088) and try to reduce the diff to stable/7 and earlier as good as possible, to help out-of-tree consumers to update from 6.x or 7.x to 8 or 9. This also removes some header file pollution for putatively static global variables. Revert VIMAGE specific changes in ipfilter::ip_auth.c, that are no longer needed. Reviewed by: jhb Discussed with: rwatson Sponsored by: The FreeBSD Foundation Sponsored by: CK Software GmbH MFC after: 6 days
|
#
315e3e38 |
|
02-Aug-2009 |
Robert Watson <rwatson@FreeBSD.org> |
Many network stack subsystems use a single global data structure to hold all pertinent statatistics for the subsystem. These structures are sometimes "borrowed" by kernel modules that require a place to store statistics for similar events. Add KPI accessor functions for statistics structures referenced by kernel modules so that they no longer encode certain specifics of how the data structures are named and stored. This change is intended to make it easier to move to per-CPU network stats following 8.0-RELEASE. The following modules are affected by this change: if_bridge if_cxgb if_gif ip_mroute ipdivert pf In practice, most of these statistics consumers should, in fact, maintain their own statistics data structures rather than borrowing structures from the base network stack. However, that change is too agressive for this point in the release cycle. Reviewed by: bz Approved by: re (kib)
|
#
1e77c105 |
|
16-Jul-2009 |
Robert Watson <rwatson@FreeBSD.org> |
Remove unused VNET_SET() and related macros; only VNET_GET() is ever actually used. Rename VNET_GET() to VNET() to shorten variable references. Discussed with: bz, julian Reviewed by: bz Approved by: re (kensmith, kib)
|
#
eddfbb76 |
|
14-Jul-2009 |
Robert Watson <rwatson@FreeBSD.org> |
Build on Jeff Roberson's linker-set based dynamic per-CPU allocator (DPCPU), as suggested by Peter Wemm, and implement a new per-virtual network stack memory allocator. Modify vnet to use the allocator instead of monolithic global container structures (vinet, ...). This change solves many binary compatibility problems associated with VIMAGE, and restores ELF symbols for virtualized global variables. Each virtualized global variable exists as a "reference copy", and also once per virtual network stack. Virtualized global variables are tagged at compile-time, placing the in a special linker set, which is loaded into a contiguous region of kernel memory. Virtualized global variables in the base kernel are linked as normal, but those in modules are copied and relocated to a reserved portion of the kernel's vnet region with the help of a the kernel linker. Virtualized global variables exist in per-vnet memory set up when the network stack instance is created, and are initialized statically from the reference copy. Run-time access occurs via an accessor macro, which converts from the current vnet and requested symbol to a per-vnet address. When "options VIMAGE" is not compiled into the kernel, normal global ELF symbols will be used instead and indirection is avoided. This change restores static initialization for network stack global variables, restores support for non-global symbols and types, eliminates the need for many subsystem constructors, eliminates large per-subsystem structures that caused many binary compatibility issues both for monitoring applications (netstat) and kernel modules, removes the per-function INIT_VNET_*() macros throughout the stack, eliminates the need for vnet_symmap ksym(2) munging, and eliminates duplicate definitions of virtualized globals under VIMAGE_GLOBALS. Bump __FreeBSD_version and update UPDATING. Portions submitted by: bz Reviewed by: bz, zec Discussed with: gnn, jamie, jeff, jhb, julian, sam Suggested by: peter Approved by: re (kensmith)
|
#
7b495c44 |
|
12-Jun-2009 |
VANHULLEBUS Yvan <vanhu@FreeBSD.org> |
Added support for NAT-Traversal (RFC 3948) in IPsec stack. Thanks to (no special order) Emmanuel Dreyfus (manu@netbsd.org), Larry Baird (lab@gta.com), gnn, bz, and other FreeBSD devs, Julien Vanherzeele (julien.vanherzeele@netasq.com, for years of bug reporting), the PFSense team, and all people who used / tried the NAT-T patch for years and reported bugs, patches, etc... X-MFC: never Reviewed by: bz Approved by: gnn(mentor) Obtained from: NETASQ
|
#
bc29160d |
|
08-Jun-2009 |
Marko Zec <zec@FreeBSD.org> |
Introduce an infrastructure for dismantling vnet instances. Vnet modules and protocol domains may now register destructor functions to clean up and release per-module state. The destructor mechanisms can be triggered by invoking "vimage -d", or a future equivalent command which will be provided via the new jail framework. While this patch introduces numerous placeholder destructor functions, many of those are currently incomplete, thus leaking memory or (even worse) failing to stop all running timers. Many of such issues are already known and will be incrementaly fixed over the next weeks in smaller incremental commits. Apart from introducing new fields in structs ifnet, domain, protosw and vnet_net, which requires the kernel and modules to be rebuilt, this change should have no impact on nooptions VIMAGE builds, since vnet destructors can only be called in VIMAGE kernels. Moreover, destructor functions should be in general compiled in only in options VIMAGE builds, except for kernel modules which can be safely kldunloaded at run time. Bump __FreeBSD_version to 800097. Reviewed by: bz, julian Approved by: rwatson, kib (re), julian (mentor)
|
#
6a9148fe |
|
23-May-2009 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
Implement UDP control block support. So far the udp_tun_func_t had been (ab)using inp_ppcb for udp in kernel tunneling callbacks. Move that into the udpcb and add a field for flags there to be used by upcoming changes instead of sticking udp only flags into in_pcb flags2. Bump __FreeBSD_version for ports to detect it and because of vnet* struct size changes. Submitted by: jhb (7.x version) Reviewed by: rwatson
|
#
026decb8 |
|
12-Apr-2009 |
Robert Watson <rwatson@FreeBSD.org> |
Update stats in struct udpstat using two new macros, UDPSTAT_ADD() and UDPSTAT_INC(), rather than directly manipulating the fields across the kernel. This will make it easier to change the implementation of these statistics, such as using per-CPU versions of the data structures. MFC after: 3 days
|
#
c7c7ea4b |
|
05-Jan-2009 |
Randall Stewart <rrs@FreeBSD.org> |
Add the ability of an alternate transport protocol to easily tunnel over udp by providing a hook function that will be called instead of appending to the socket buffer.
|
#
86413abf |
|
11-Dec-2008 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
Put a global variables, which were virtualized but formerly missed under VIMAGE_GLOBAL. Start putting the extern declarations of the virtualized globals under VIMAGE_GLOBAL as the globals themsevles are already. This will help by the time when we are going to remove the globals entirely. While there garbage collect a few dead externs from ip6_var.h. Sponsored by: The FreeBSD Foundation
|
#
d7f03759 |
|
19-Oct-2008 |
Ulf Lilleengen <lulf@FreeBSD.org> |
- Import the HEAD csup code which is the basis for the cvsmode work.
|
#
43bbb6aa |
|
10-Jul-2007 |
Robert Watson <rwatson@FreeBSD.org> |
Further cleanup of UDPv4: - Move udp_sendspace and udp_recvspace global variables and associated sysctls to the top of the file where most other such things are present. - Rename static variable 'blackhole' to 'udp_blackhole' and unstaticize so that we can add blackhole support for UDPv6 using the same MIB variable. - Move udp_append() above udp_input() to match the function order in udp6_usrreq.c. Approved by: re (kensmith)
|
#
71498f30 |
|
12-Jun-2007 |
Bruce M Simpson <bms@FreeBSD.org> |
Import rewrite of IPv4 socket multicast layer to support source-specific and protocol-independent host mode multicast. The code is written to accomodate IPv6, IGMPv3 and MLDv2 with only a little additional work. This change only pertains to FreeBSD's use as a multicast end-station and does not concern multicast routing; for an IGMPv3/MLDv2 router implementation, consider the XORP project. The work is based on Wilbert de Graaf's IGMPv3 code drop for FreeBSD 4.6, which is available at: http://www.kloosterhof.com/wilbert/igmpv3.html Summary * IPv4 multicast socket processing is now moved out of ip_output.c into a new module, in_mcast.c. * The in_mcast.c module implements the IPv4 legacy any-source API in terms of the protocol-independent source-specific API. * Source filters are lazy allocated as the common case does not use them. They are part of per inpcb state and are covered by the inpcb lock. * struct ip_mreqn is now supported to allow applications to specify multicast joins by interface index in the legacy IPv4 any-source API. * In UDP, an incoming multicast datagram only requires that the source port matches the 4-tuple if the socket was already bound by source port. An unbound socket SHOULD be able to receive multicasts sent from an ephemeral source port. * The UDP socket multicast filter mode defaults to exclusive, that is, sources present in the per-socket list will be blocked from delivery. * The RFC 3678 userland functions have been added to libc: setsourcefilter, getsourcefilter, setipv4sourcefilter, getipv4sourcefilter. * Definitions for IGMPv3 are merged but not yet used. * struct sockaddr_storage is now referenced from <netinet/in.h>. It is therefore defined there if not already declared in the same way as for the C99 types. * The RFC 1724 hack (specify 0.0.0.0/8 addresses to IP_MULTICAST_IF which are then interpreted as interface indexes) is now deprecated. * A patch for the Rhyolite.com routed in the FreeBSD base system is available in the -net archives. This only affects individuals running RIPv1 or RIPv2 via point-to-point and/or unnumbered interfaces. * Make IPv6 detach path similar to IPv4's in code flow; functionally same. * Bump __FreeBSD_version to 700048; see UPDATING. This work was financially supported by another FreeBSD committer. Obtained from: p4://bms_netdev Submitted by: Wilbert de Graaf (original work) Reviewed by: rwatson (locking), silence from fenner, net@ (but with encouragement)
|
#
afdb4274 |
|
20-Feb-2007 |
Robert Watson <rwatson@FreeBSD.org> |
Rename two identically named log_in_vain variables: tcp_input.c's static log_in_vain to tcp_log_in_vain, and udp_usrreq's global log_in_vain to udp_log_in_vain. MFC after: 1 week
|
#
3329b236 |
|
20-Feb-2007 |
Robert Watson <rwatson@FreeBSD.org> |
Gratuitous UDP restyling toward style(9) in 7.x.
|
#
c398230b |
|
06-Jan-2005 |
Warner Losh <imp@FreeBSD.org> |
/* -> /*- for license, minor formatting changes
|
#
a4f757cd |
|
16-Aug-2004 |
Robert Watson <rwatson@FreeBSD.org> |
White space cleanup for netinet before branch: - Trailing tab/space cleanup - Remove spurious spaces between or before tabs This change avoids touching files that Andre likely has in his working set for PFIL hooks changes for IPFW/DUMMYNET. Approved by: re (scottl) Submitted by: Xin LI <delphij@frontfree.net>
|
#
f36cfd49 |
|
07-Apr-2004 |
Warner Losh <imp@FreeBSD.org> |
Remove advertising clause from University of California Regent's license, per letter dated July 22, 1999 and email from Peter Wemm, Alan Cox and Robert Watson. Approved by: core, peter, alc, rwatson
|
#
3ce144ea |
|
14-Jun-2002 |
Jeffrey Hsu <hsu@FreeBSD.org> |
Notify functions can destroy the pcb, so they have to return an indication of whether this happenned so the calling function knows whether or not to unlock the pcb. Submitted by: Jennifer Yang (yangjihui@yahoo.com) Bug reported by: Sid Carter (sidcarter@symonds.net)
|
#
4d77a549 |
|
19-Mar-2002 |
Alfred Perlstein <alfred@FreeBSD.org> |
Remove __P.
|
#
f0ffb944 |
|
03-Sep-2001 |
Julian Elischer <julian@FreeBSD.org> |
Patches from Keiichi SHIMA <keiichi@iij.ad.jp> to make ip use the standard protosw structure again. Obtained from: Well, KAME I guess.
|
#
c1b843c7 |
|
18-Feb-2001 |
Luigi Rizzo <luigi@FreeBSD.org> |
remove unused data structure definition, and corresponding macro into*()
|
#
664a31e4 |
|
28-Dec-1999 |
Peter Wemm <peter@FreeBSD.org> |
Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
|
#
cfa1ca9d |
|
07-Dec-1999 |
Yoshinobu Inoue <shin@FreeBSD.org> |
udp IPv6 support, IPv6/IPv4 tunneling support in kernel, packet divert at kernel for IPv6/IPv4 translater daemon This includes queue related patch submitted by jburkhol@home.com. Submitted by: queue related patch from jburkhol@home.com Reviewed by: freebsd-arch, cvs-committers Obtained from: KAME project
|
#
76429de4 |
|
05-Nov-1999 |
Yoshinobu Inoue <shin@FreeBSD.org> |
KAME related header files additions and merges. (only those which don't affect c source files so much) Reviewed by: cvs-committers Obtained from: KAME project
|
#
c3aac50f |
|
27-Aug-1999 |
Peter Wemm <peter@FreeBSD.org> |
$Id$ -> $FreeBSD$
|
#
7a2aab80 |
|
19-Jun-1999 |
Brian Feldman <green@FreeBSD.org> |
This is the much-awaited cleaned up version of IPFW [ug]id support. All relevant changes have been made (including ipfw.8).
|
#
ce02431f |
|
16-Feb-1999 |
Doug Rabson <dfr@FreeBSD.org> |
* Change sysctl from using linker_set to construct its tree using SLISTs. This makes it possible to change the sysctl tree at runtime. * Change KLD to find and register any sysctl nodes contained in the loaded file and to unregister them when the file is unloaded. Reviewed by: Archie Cobbs <archie@whistle.com>, Peter Wemm <peter@netplex.com.au> (well they looked at it anyway)
|
#
73c86311 |
|
17-Nov-1998 |
Doug Rabson <dfr@FreeBSD.org> |
Remove stale references to ih_next and ih_prev. Pointed out by: Roman V. Palagin <romanp@wuppy.rcs.ru>
|
#
98271db4 |
|
15-May-1998 |
Garrett Wollman <wollman@FreeBSD.org> |
Convert socket structures to be type-stable and add a version number. Define a parameter which indicates the maximum number of sockets in a system, and use this to size the zone allocators used for sockets and for certain PCBs. Convert PF_LOCAL PCB structures to be type-stable and add a version number. Define an external format for infomation about socket structures and use it in several places. Define a mechanism to get all PF_LOCAL and PF_INET PCB lists through sysctl(3) without blocking network interrupts for an unreasonable length of time. This probably still has some bugs and/or race conditions, but it seems to work well enough on my machines. It is now possible for `netstat' to get almost all of its information via the sysctl(3) interface rather than reading kmem (changes to follow).
|
#
bea0f0be |
|
06-Sep-1997 |
Bruce Evans <bde@FreeBSD.org> |
Some staticized variables were still declared to be extern.
|
#
57bf258e |
|
16-Aug-1997 |
Garrett Wollman <wollman@FreeBSD.org> |
Fix all areas of the system (or at least all those in LINT) to avoid storing socket addresses in mbufs. (Socket buffers are the one exception.) A number of kernel APIs needed to get fixed in order to make this happen. Also, fix three protocol families which kept PCBs in mbufs to not malloc them instead. Delete some old compatibility cruft while we're at it, and add some new routines in the in_cksum family.
|
#
6875d254 |
|
22-Feb-1997 |
Peter Wemm <peter@FreeBSD.org> |
Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not ready for it yet.
|
#
d0390e05 |
|
14-Feb-1997 |
Garrett Wollman <wollman@FreeBSD.org> |
Fix the mechanism for choosing wehether to save the slow-start threshold in the route. This allows us to remove the unconditional setting of the pipesize in the route, which should mean that SO_SNDBUF and SO_RCVBUF should actually work again. While we're at it: - Convert udp_usrreq from `mondo switch statement from Hell' to new-style. - Delete old TCP mondo switch statement from Hell, which had previously been diked out.
|
#
1130b656 |
|
14-Jan-1997 |
Jordan K. Hubbard <jkh@FreeBSD.org> |
Make the long-awaited change from $Id$ to $FreeBSD$ This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
|
#
c611d82e |
|
05-Jun-1996 |
Garrett Wollman <wollman@FreeBSD.org> |
Instrument UDP PCB hashing to see how often the hash lookup is effective for incoming packets.
|
#
b62d102c |
|
15-Dec-1995 |
Bruce Evans <bde@FreeBSD.org> |
Uniformized pr_ctlinput protosw functions. The third arg is now `void *' instead of caddr_t and it isn't optional (it never was). Most of the netipx (and netns) pr_ctlinput functions abuse the second arg instead of using the third arg but fixing this is beyond the scope of this round of changes.
|
#
ff98689d |
|
16-Nov-1995 |
Bruce Evans <bde@FreeBSD.org> |
Fixed recent staticizations. Some protypes for static functions were left in headers and not staticized.
|
#
0312fbe9 |
|
14-Nov-1995 |
Poul-Henning Kamp <phk@FreeBSD.org> |
New style sysctl & staticize alot of stuff.
|
#
15bd2b43 |
|
08-Apr-1995 |
David Greenman <dg@FreeBSD.org> |
Implemented PCB hashing. Includes new functions in_pcbinshash, in_pcbrehash, and in_pcblookuphash.
|
#
f2ea20e6 |
|
15-Feb-1995 |
Garrett Wollman <wollman@FreeBSD.org> |
Add lots of useful MIB variables and a few not-so-useful ones for completeness.
|
#
707f139e |
|
20-Aug-1994 |
Paul Richards <paul@FreeBSD.org> |
Made idempotent. Submitted by: Paul
|
#
3c4dd356 |
|
02-Aug-1994 |
David Greenman <dg@FreeBSD.org> |
Added $Id$
|
#
df8bae1d |
|
24-May-1994 |
Rodney W. Grimes <rgrimes@FreeBSD.org> |
BSD 4.4 Lite Kernel Sources
|