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685dc743 |
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16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: one-line .c pattern Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
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0fb0711d |
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21-Jun-2023 |
Michael Tuexen <tuexen@FreeBSD.org> |
tcp: fix TCP MD5 digest computation for TCP over UDP Skip the UDP header for the computation. This is similar to skipping IPv6 extension headers. Reviewed by: cc, rscheff MFC after: 3 days Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D40596
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53af6903 |
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06-Oct-2022 |
Gleb Smirnoff <glebius@FreeBSD.org> |
tcp: remove INP_TIMEWAIT flag Mechanically cleanup INP_TIMEWAIT from the kernel sources. After 0d7445193ab, this commit shall not cause any functional changes. Note: this flag was very often checked together with INP_DROPPED. If we modify in_pcblookup*() not to return INP_DROPPED pcbs, we will be able to remove most of this checks and turn them to assertions. Some of them can be turned into assertions right now, but that should be carefully done on a case by case basis. Differential revision: https://reviews.freebsd.org/D36400
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eb18708e |
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08-Jan-2022 |
Robert Wing <rew@FreeBSD.org> |
syncache: accept packet with no SA when TCP_MD5SIG is set When TCP_MD5SIG is set on a socket, all packets are dropped that don't contain an MD5 signature. Relax this behavior to accept a non-signed packet when a security association doesn't exist with the peer. This is useful when a listen socket set with TCP_MD5SIG wants to handle connections protected with and without MD5 signatures. Reviewed by: bz (previous version) Sponsored by: nepustil.net Sponsored by: Klara Inc. Differential Revision: https://reviews.freebsd.org/D33227
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91d38811 |
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08-Jan-2022 |
Robert Wing <rew@FreeBSD.org> |
tcpmd5: return ENOENT when security association not found Return ENOENT from tcp_ipsec_input() when a security association is not found. This allows callers of TCP_MD5_INPUT() to differentiate between a security association not found and receiving a bad signature. Also return ENOENT from tcp_ipsec_output() for consistency. Reviewed by: ae Sponsored by: nepustil.net Sponsored by: Klara Inc. Differential Revision: https://reviews.freebsd.org/D33226
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dae61c9d |
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25-Jun-2020 |
John Baldwin <jhb@FreeBSD.org> |
Simplify IPsec transform-specific teardown. - Rename from the teardown callback from 'zeroize' to 'cleanup' since this no longer zeroes keys. - Change the callback return type to void. Nothing checked the return value and it was always zero. - Don't have esp call into ah since it no longer needs to depend on this to clear the auth key. Instead, both are now private and self-contained. Reviewed by: delphij Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D25443
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20869b25 |
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25-Jun-2020 |
John Baldwin <jhb@FreeBSD.org> |
Use zfree() to explicitly zero IPsec keys. Reviewed by: delphij Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D25442
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968ac175 |
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04-Jul-2018 |
Sean Bruno <sbruno@FreeBSD.org> |
fix locking within tcp_ipsec_pcbctl() to match ipsec4_pcbctl(), ipsec4_pcbctl() IPSEC_PCBCTL() functions, which include tcp_ipsec_pcbctl(), ipsec4_pcbctl(), and ipsec6_pcbctl(), should all have matching locking semantics. ipsec4_pcbctl() and ipsec6_pcbctl() expect the inp to be unlocked on entry and exit and appear to be correctly implemented as such. But tcp_ipsec_pcbctl() had other semantics. This patch fixes the semantics for tcp_ipsec_pcbctl(). Submitted by: Jason Eggleston <jason@eggnet.com> MFH: 2 weeks Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D14623
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fe267a55 |
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27-Nov-2017 |
Pedro F. Giffuni <pfg@FreeBSD.org> |
sys: general adoption of SPDX licensing ID tags. 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.
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cfff3743 |
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10-Feb-2017 |
Gleb Smirnoff <glebius@FreeBSD.org> |
Move tcp_fields_to_net() static inline into tcp_var.h, just below its friend tcp_fields_to_host(). There is third party code that also uses this inline. Reviewed by: ae
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fcf59617 |
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06-Feb-2017 |
Andrey V. Elsukov <ae@FreeBSD.org> |
Merge projects/ipsec into head/. Small summary ------------- o Almost all IPsec releated code was moved into sys/netipsec. o New kernel modules added: ipsec.ko and tcpmd5.ko. New kernel option IPSEC_SUPPORT added. It enables support for loading and unloading of ipsec.ko and tcpmd5.ko kernel modules. o IPSEC_NAT_T option was removed. Now NAT-T support is enabled by default. The UDP_ENCAP_ESPINUDP_NON_IKE encapsulation type support was removed. Added TCP/UDP checksum handling for inbound packets that were decapsulated by transport mode SAs. setkey(8) modified to show run-time NAT-T configuration of SA. o New network pseudo interface if_ipsec(4) added. For now it is build as part of ipsec.ko module (or with IPSEC kernel). It implements IPsec virtual tunnels to create route-based VPNs. o The network stack now invokes IPsec functions using special methods. The only one header file <netipsec/ipsec_support.h> should be included to declare all the needed things to work with IPsec. o All IPsec protocols handlers (ESP/AH/IPCOMP protosw) were removed. Now these protocols are handled directly via IPsec methods. o TCP_SIGNATURE support was reworked to be more close to RFC. o PF_KEY SADB was reworked: - now all security associations stored in the single SPI namespace, and all SAs MUST have unique SPI. - several hash tables added to speed up lookups in SADB. - SADB now uses rmlock to protect access, and concurrent threads can do SA lookups in the same time. - many PF_KEY message handlers were reworked to reflect changes in SADB. - SADB_UPDATE message was extended to support new PF_KEY headers: SADB_X_EXT_NEW_ADDRESS_SRC and SADB_X_EXT_NEW_ADDRESS_DST. They can be used by IKE daemon to change SA addresses. o ipsecrequest and secpolicy structures were cardinally changed to avoid locking protection for ipsecrequest. Now we support only limited number (4) of bundled SAs, but they are supported for both INET and INET6. o INPCB security policy cache was introduced. Each PCB now caches used security policies to avoid SP lookup for each packet. o For inbound security policies added the mode, when the kernel does check for full history of applied IPsec transforms. o References counting rules for security policies and security associations were changed. The proper SA locking added into xform code. o xform code was also changed. Now it is possible to unregister xforms. tdb_xxx structures were changed and renamed to reflect changes in SADB/SPDB, and changed rules for locking and refcounting. Reviewed by: gnn, wblock Obtained from: Yandex LLC Relnotes: yes Sponsored by: Yandex LLC Differential Revision: https://reviews.freebsd.org/D9352
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89856f7e |
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21-Jun-2016 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
Get closer to a VIMAGE network stack teardown from top to bottom rather than removing the network interfaces first. This change is rather larger and convoluted as the ordering requirements cannot be separated. Move the pfil(9) framework to SI_SUB_PROTO_PFIL, move Firewalls and related modules to their own SI_SUB_PROTO_FIREWALL. Move initialization of "physical" interfaces to SI_SUB_DRIVERS, move virtual (cloned) interfaces to SI_SUB_PSEUDO. Move Multicast to SI_SUB_PROTO_MC. Re-work parts of multicast initialisation and teardown, not taking the huge amount of memory into account if used as a module yet. For interface teardown we try to do as many of them as we can on SI_SUB_INIT_IF, but for some this makes no sense, e.g., when tunnelling over a higher layer protocol such as IP. In that case the interface has to go along (or before) the higher layer protocol is shutdown. Kernel hhooks need to go last on teardown as they may be used at various higher layers and we cannot remove them before we cleaned up the higher layers. For interface teardown there are multiple paths: (a) a cloned interface is destroyed (inside a VIMAGE or in the base system), (b) any interface is moved from a virtual network stack to a different network stack ("vmove"), or (c) a virtual network stack is being shut down. All code paths go through if_detach_internal() where we, depending on the vmove flag or the vnet state, make a decision on how much to shut down; in case we are destroying a VNET the individual protocol layers will cleanup their own parts thus we cannot do so again for each interface as we end up with, e.g., double-frees, destroying locks twice or acquiring already destroyed locks. When calling into protocol cleanups we equally have to tell them whether they need to detach upper layer protocols ("ulp") or not (e.g., in6_ifdetach()). Provide or enahnce helper functions to do proper cleanup at a protocol rather than at an interface level. Approved by: re (hrs) Obtained from: projects/vnet Reviewed by: gnn, jhb Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D6747
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1f12da0e |
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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
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2d957916 |
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01-Dec-2014 |
Andrey V. Elsukov <ae@FreeBSD.org> |
Remove route chaching support from ipsec code. It isn't used for some time. * remove sa_route_union declaration and route_cache member from struct secashead; * remove key_sa_routechange() call from ICMP and ICMPv6 code; * simplify ip_ipsec_mtu(); * remove #include <net/route.h>; Sponsored by: Yandex LLC
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a7d5f7eb |
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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.
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530c0060 |
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01-Aug-2009 |
Robert Watson <rwatson@FreeBSD.org> |
Merge the remainder of kern_vimage.c and vimage.h into vnet.c and vnet.h, we now use jails (rather than vimages) as the abstraction for virtualization management, and what remained was specific to virtual network stacks. Minor cleanups are done in the process, and comments updated to reflect these changes. Reviewed by: bz Approved by: re (vimage blanket)
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eddfbb76 |
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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)
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7654a365 |
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16-Jun-2009 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
Add the explicit include of vimage.h to another five .c files still missing it. Remove the "hidden" kernel only include of vimage.h from ip_var.h added with the very first Vimage commit r181803 to avoid further kernel poisoning.
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21ca7b57 |
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05-May-2009 |
Marko Zec <zec@FreeBSD.org> |
Change the curvnet variable from a global const struct vnet *, previously always pointing to the default vnet context, to a dynamically changing thread-local one. The currvnet context should be set on entry to networking code via CURVNET_SET() macros, and reverted to previous state via CURVNET_RESTORE(). Recursions on curvnet are permitted, though strongly discuouraged. This change should have no functional impact on nooptions VIMAGE kernel builds, where CURVNET_* macros expand to whitespace. The curthread->td_vnet (aka curvnet) variable's purpose is to be an indicator of the vnet context in which the current network-related operation takes place, in case we cannot deduce the current vnet context from any other source, such as by looking at mbuf's m->m_pkthdr.rcvif->if_vnet, sockets's so->so_vnet etc. Moreover, so far curvnet has turned out to be an invaluable consistency checking aid: it helps to catch cases when sockets, ifnets or any other vnet-aware structures may have leaked from one vnet to another. The exact placement of the CURVNET_SET() / CURVNET_RESTORE() macros was a result of an empirical iterative process, whith an aim to reduce recursions on CURVNET_SET() to a minimum, while still reducing the scope of CURVNET_SET() to networking only operations - the alternative would be calling CURVNET_SET() on each system call entry. In general, curvnet has to be set in three typicall cases: when processing socket-related requests from userspace or from within the kernel; when processing inbound traffic flowing from device drivers to upper layers of the networking stack, and when executing timer-driven networking functions. This change also introduces a DDB subcommand to show the list of all vnet instances. Approved by: julian (mentor)
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d7f03759 |
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19-Oct-2008 |
Ulf Lilleengen <lulf@FreeBSD.org> |
- Import the HEAD csup code which is the basis for the cvsmode work.
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3e43d2ae |
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21-Mar-2008 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
Add ';' missed with the SYSINIT changes. Not noticed by tb as TCP_SIGNATURE is not in LINT. MFC after: 1 month
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a0196c3c |
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25-Mar-2006 |
George V. Neville-Neil <gnn@FreeBSD.org> |
First steps towards IPSec cleanup. Make the kernel side of FAST_IPSEC not depend on the shared structures defined in /usr/include/net/pfkeyv2.h The kernel now defines all the necessary in kernel structures in sys/netipsec/keydb.h and does the proper massaging when moving messages around. Sponsored By: Secure Computing
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c398230b |
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06-Jan-2005 |
Warner Losh <imp@FreeBSD.org> |
/* -> /*- for license, minor formatting changes
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3a2366dc |
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20-Apr-2004 |
Bruce M Simpson <bms@FreeBSD.org> |
Fix a debugging printf snafu.
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55d2c71b |
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02-Apr-2004 |
Bruce M Simpson <bms@FreeBSD.org> |
This file was erroneously removed from HEAD when TCP-MD5 support was MFC'd; correct this lameness.
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