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* Avoid ARM SWI Seek when querying file positionAndy Koppe2018-09-031-2/+9
| | | | | | | | | | | | | | | | | | | Issuing an ARM semi-hosting Seek command when just querying file position with SEEK_CUR and offset zero is unnecessary, because unlike the lseek() Unix system call the Seek command does not actually return the file position. For that reason, syscalls.c for ARM keeps track of file position in the 'poslog', so we can just return that. Moreover, since the Seek command only accepts an absolute file position, SEEK_CUR operations are implemented by adding the relative offset to the position in the poslog. If the host implements non-binary files with implicit carriage return characters but doesn't discount those implicit CRs when implementing Seek (by just mapping straight to Windows file operations), this actually ended up wrongly changing file position when using SEEK_CUR with offset zero or functions like ftell() or fgetpos() that are based on that. Also, use off_t rather than int for the poslog.
* Cygwin: console: Print Unicode REPLACEMENT CHARACTER for invalid input charsCorinna Vinschen2018-09-011-4/+3
| | | | | | | | So far we printed a half filled square (0x2592) if the input char is invalid, but using REPLACEMENT CHARACTER (0xfffd) is apparently the way to go. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Cygwin: fix Win32 path ".." backtrackingCorinna Vinschen2018-09-012-5/+29
| | | | | | | | | | | | | Commit 35998fc2fa6cbb7d761f6d88346246bd3627552b fixed the buffer underun in win32 path normalization, but introduced a new bug: A wrong assumption led to the inability to backtrack the path outside of the current working directory in case of relative paths. This patch fixes this problem, together with a minor problem if the CWD is on a network share: The result erroneously started with tripple backslash if the src path starts with a single backslash. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Add --disable-newlib-fno-builtin to allow compilation without -fno-builtin ↵newlib-snapshot-20180831Jon Beniston2018-08-31102-228/+1436
| | | | for smaller and faster code.
* Cygwin: Bump DLL version to 2.11.1Corinna Vinschen2018-08-311-1/+1
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Drop non-reserved parameter names from sys/signal.hcygwin-2_11_0-releaseAndy Koppe2018-08-291-8/+7
| | | | | | Standard headers shouldn't use non-reserved identifiers as parameter names in function declarations, because programs could in theory define macros with such names before including a header.
* Use __inhibit_loop_to_libcall in all memset/memcpy implementationsKeith Packard2018-08-2910-2/+28
| | | | | | | | This macro selects a compiler option that disables recognition of common memset/memcpy patterns and converting those to direct memset/memcpy calls. Signed-off-by: Keith Packard <keithp@keithp.com>
* Remove unused variable 'one' from sf_cos.cKeith Packard2018-08-291-6/+0
| | | | | | Defined, never mentioned. Signed-off-by: Keith Packard <keithp@keithp.com>
* Use nanf("") instead of nanf(NULL)Keith Packard2018-08-295-8/+8
| | | | | | | Newer GCC versions require a non-NULL argument to this function for some reason. Signed-off-by: Keith Packard <keithp@keithp.com>
* RISC-V: Fix _sbrk, it's failed only when return value is -1.Denis Ivanov2018-08-292-7/+12
| | | | Signed-off-by: Kito Cheng <kito.cheng@gmail.com>
* RISC-V: Fixed return code in _times syscall.Denis Ivanov2018-08-291-2/+2
| | | | | | | | Upon successful completion, times() shall return the elapsed real time, in clock ticks, since an arbitrary point in the past (for example, system start-up time). Signed-off-by: Kito Cheng <kito.cheng@gmail.com>
* Cygwin: Accommodate logon sessions on Windows 10Corinna Vinschen2018-08-282-1/+34
| | | | | | | | | Starting with Windows 10, LookupAccountSid/Name return valid info for the login session with new SID_NAME_USE value SidTypeLogonSession. To return the same info as on pre-Windows 10, we have to handle this type. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Cygwin: drop workaround for missing USER_INFO_24 definitionCorinna Vinschen2018-08-281-13/+1
| | | | | | Recent mingw64 provide USER_INFO_24 Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Cygwin: add release note for previous ACL changesCorinna Vinschen2018-08-271-0/+4
| | | | Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Cygwin: Add name->SID conversion for self-constructed namesCorinna Vinschen2018-08-272-9/+116
| | | | | | ...as far as it makes sense. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Cygwin: don't return valid acl entry type for unknown SIDCorinna Vinschen2018-08-271-3/+9
| | | | | | | | | | | cygpsid::get_id neglects to set the type to 0 (ACL_UNDEFINED_TAG in POSIX speak) if the SID can not be translated into a valid uid or gid. This in turn leads to incorrect handling of uid/gid -1 entries. Fix this by setting type to 0 if the id is unknown. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Cygwin: Remove union waitCorinna Vinschen2018-08-244-82/+23
| | | | | | | | | | | | | | | | This patch follows glibc. Original commit message: Author: Florian Weimer <fweimer@redhat.com> Date: Thu, 14 Apr 2016 06:54:57 +0000 Remove union wait [BZ #19613] The overloading approach in the W* macros was incompatible with integer expressions of a type different from int. Applications using union wait and these macros will have to migrate to the POSIX-specified int status type. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* RTEMS: Add kvaddr_t and ksize_tSebastian Huber2018-08-241-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | These types were introduced by FreeBSD commit: "Make struct xinpcb and friends word-size independent. 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" In RTEMS, there is no user/kernel space separation. So, use the types size_t and uintptr_t. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* RTEMS: Introduce <machine/_kernel_mman.h>Sebastian Huber2018-08-241-48/+5
| | | | | | This helps to avoid Newlib updates due to FreeBSD kernel space changes. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* RTEMS: Introduce <machine/_kernel_socket.h>Sebastian Huber2018-08-241-54/+3
| | | | | | This helps to avoid Newlib updates due to FreeBSD kernel space changes. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* RTEMS: Introduce <machine/_kernel_if.h>Sebastian Huber2018-08-241-7/+4
| | | | | | This helps to avoid Newlib updates due to FreeBSD kernel space changes. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* RTEMS: Introduce <machine/_kernel_in.h>Sebastian Huber2018-08-241-26/+4
| | | | | | This helps to avoid Newlib updates due to FreeBSD kernel space changes. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* RTEMS: Introduce <machine/_kernel_in6.h>Sebastian Huber2018-08-241-163/+7
| | | | | | This helps to avoid Newlib updates due to FreeBSD kernel space changes. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* RTEMS: Introduce <machine/_kernel_uio.h>Sebastian Huber2018-08-241-54/+6
| | | | | | This helps to avoid Newlib updates due to FreeBSD kernel space changes. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* RTEMS: Add __BSD_VISIBLE in <sys/_termios.h>Sebastian Huber2018-08-241-3/+3
| | | | | | | The __XSI_VISIBLE is not enabled by default in Newlib. This is an incompatiblity between FreeBSD and glibc. Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* RTEMS: Update FreeBSD version tagsSebastian Huber2018-08-2424-24/+24
| | | | Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
* Add SOL_SOCKET level socket optiontuexen2018-08-241-0/+1
| | | | | | | | | | | with name SO_DOMAIN to get the domain of a socket. This is helpful when testing and Solaris and Linux have the same socket option using the same name. Reviewed by: bcr@, rrs@ Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D16791
* Implement a limit on on the number of IPv6 reassemblyjtl2018-08-241-1/+2
| | | | | | | | | | | | | | | | | | | | queues per bucket. There is a hashing algorithm which should distribute IPv6 reassembly queues across the available buckets in a relatively even way. However, if there is a flaw in the hashing algorithm which allows a large number of IPv6 fragment reassembly queues to end up in a single bucket, a per- bucket limit could help mitigate the performance impact of this flaw. Implement such a limit, with a default of twice the maximum number of reassembly queues divided by the number of buckets. Recalculate the limit any time the maximum number of reassembly queues changes. However, allow the user to override the value using a sysctl (net.inet6.ip6.maxfragbucketsize). Reviewed by: jhb Security: FreeBSD-SA-18:10.ip Security: CVE-2018-6923
* Add a limit of the number of fragments per IPv6 packet.jtl2018-08-241-1/+2
| | | | | | | | | | | | | | | | | | | | | | | The IPv4 fragment reassembly code supports a limit on the number of fragments per packet. The default limit is currently 17 fragments. Among other things, this limit serves to limit the number of fragments the code must parse when trying to reassembly a packet. Add a limit to the IPv6 reassembly code. By default, limit a packet to 65 fragments (64 on the queue, plus one final fragment to complete the packet). This allows an average fragment size of 1,008 bytes, which should be sufficient to hold a fragment. (Recall that the IPv6 minimum MTU is 1280 bytes. Therefore, this configuration allows a full-size IPv6 packet to be fragmented on a link with the minimum MTU and still carry approximately 272 bytes of headers before the fragmented portion of the packet.) Users can adjust this limit using the net.inet6.ip6.maxfragsperpacket sysctl. Reviewed by: jhb Security: FreeBSD-SA-18:10.ip Security: CVE-2018-6923
* This commit brings in a new refactored TCP stack called Rack.rrs2018-08-242-0/+67
| | | | | | | | | | | | | | | | | | | | | | | | | Rack includes the following features: - A different SACK processing scheme (the old sack structures are not used). - RACK (Recent acknowledgment) where counting dup-acks is no longer done instead time is used to knwo when to retransmit. (see the I-D) - TLP (Tail Loss Probe) where we will probe for tail-losses to attempt to try not to take a retransmit time-out. (see the I-D) - Burst mitigation using TCPHTPS - PRR (partial rate reduction) see the RFC. Once built into your kernel, you can select this stack by either socket option with the name of the stack is "rack" or by setting the global sysctl so the default is rack. Note that any connection that does not support SACK will be kicked back to the "default" base FreeBSD stack (currently known as "default"). To build this into your kernel you will need to enable in your kernel: makeoptions WITH_EXTRA_TCP_STACKS=1 options TCPHPTS Sponsored by: Netflix Inc. Differential Revision: https://reviews.freebsd.org/D15525
* Load balance sockets with new SO_REUSEPORT_LB option.sbruno2018-08-241-17/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new socket option, SO_REUSEPORT_LB, which allow multiple programs or threads to bind to the same port and incoming connections will be load balanced using a hash function. Most of the code was copied from a similar patch for DragonflyBSD. However, in DragonflyBSD, load balancing is a global on/off setting and can not be set per socket. This patch allows for simultaneous use of both the current SO_REUSEPORT and the new SO_REUSEPORT_LB options on the same system. Required changes to structures: Globally change so_options from 16 to 32 bit value to allow for more options. Add hashtable in pcbinfo to hold all SO_REUSEPORT_LB sockets. Limitations: As DragonflyBSD, a load balance group is limited to 256 pcbs (256 programs or threads sharing the same socket). This is a substantially different contribution as compared to its original incarnation at svn r332894 and reverted at svn r332967. Thanks to rwatson@ for the substantive feedback that is included in this commit. Submitted by: Johannes Lundberg <johalun0@gmail.com> Obtained from: DragonflyBSD Relnotes: Yes Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D11003
* iflib(9): Add support for cloning pseudo interfacesmmacy2018-08-241-0/+3
| | | | | | | | | | | | | | Part 3 of many ... The VPC framework relies heavily on cloning pseudo interfaces (vmnics, vpc switch, vcpswitch port, hostif, vxlan if, etc). This pulls in that piece. Some ancillary changes get pulled in as a side effect. Reviewed by: shurd@ Approved by: sbruno@ Sponsored by: Joyent, Inc. Differential Revision: https://reviews.freebsd.org/D15347
* Revert r332894 at the request of the submitter.sbruno2018-08-241-3/+0
| | | | | Submitted by: Johannes Lundberg <johalun0_gmail.com> Sponsored by: Limelight Networks
* Load balance sockets with new SO_REUSEPORT_LB optionsbruno2018-08-241-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new socket option, SO_REUSEPORT_LB, which allow multiple programs or threads to bind to the same port and incoming connections will be load balanced using a hash function. Most of the code was copied from a similar patch for DragonflyBSD. However, in DragonflyBSD, load balancing is a global on/off setting and can not be set per socket. This patch allows for simultaneous use of both the current SO_REUSEPORT and the new SO_REUSEPORT_LB options on the same system. Required changes to structures Globally change so_options from 16 to 32 bit value to allow for more options. Add hashtable in pcbinfo to hold all SO_REUSEPORT_LB sockets. Limitations As DragonflyBSD, a load balance group is limited to 256 pcbs (256 programs or threads sharing the same socket). Submitted by: Johannes Lundberg <johanlun0@gmail.com> Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D11003
* Add 32-bit compat for ioctls that take struct ifgroupreq.brooks2018-08-241-0/+2
| | | | | | | | | | | | | | Use an accessor to access ifgr_group and ifgr_groups. Use an macro CASE_IOC_IFGROUPREQ(cmd) in place of case statements such as "case SIOCAIFGROUP:". This avoids poluting the switch statements with large numbers of #ifdefs. Reviewed by: kib Obtained from: CheriBSD MFC after: 1 week Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14960
* Use an accessor function to access ifr_data.brooks2018-08-241-0/+2
| | | | | | | | | | | | | This fixes 32-bit compat (no ioctl command defintions are required as struct ifreq is the same size). This is believed to be sufficent to fully support ifconfig on 32-bit systems. Reviewed by: kib Obtained from: CheriBSD MFC after: 1 week Relnotes: yes Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14900
* Implement several enhancements to NUMA policies.jeff2018-08-241-0/+6
| | | | | | | | | | | | | | | | | | | | | | Add a new "interleave" allocation policy which stripes pages across domains with a stride or width keeping contiguity within a multi-page region. Move the kernel to the dedicated numbered cpuset #2 making it possible to assign kernel threads and memory policy separately from user. This also eliminates the need for the complicated interrupt binding code. Add a sysctl API for viewing and manipulating domainsets. Refactor some of the cpuset_t manipulation code using the generic bitset type so that it can be used for both. This probably belongs in a dedicated subr file. Attempt to improve the include situation. Reviewed by: kib Discussed with: jhb (cpuset parts) Tested by: pho (before review feedback) Sponsored by: Netflix, Dell/EMC Isilon Differential Revision: https://reviews.freebsd.org/D14839
* Fix access to ifru_buffer on freebsd32.brooks2018-08-241-0/+2
| | | | | | | | | | | | Make all kernel accesses to ifru_buffer go via access functions which take the process ABI into account and use an appropriate union to access members in the correct place in struct ifreq. Reviewed by: kib Obtained from: CheriBSD MFC after: 1 week Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14846
* Allow to specify PCP on packets not belonging to any VLAN.kib2018-08-242-0/+6
| | | | | | | | | | | | | | | | | | | | | According to 802.1Q-2014, VLAN tagged packets with VLAN id 0 should be considered as untagged, and only PCP and DEI values from the VLAN tag are meaningful. See for instance https://www.cisco.com/c/en/us/td/docs/switches/connectedgrid/cg-switch-sw-master/software/configuration/guide/vlan0/b_vlan_0.html. Make it possible to specify PCP value for outgoing packets on an ethernet interface. When PCP is supplied, the tag is appended, VLAN id set to 0, and PCP is filled by the supplied value. The code to do VLAN tag encapsulation is refactored from the if_vlan.c and moved into if_ethersubr.c. Drivers might have issues with filtering VID 0 packets on receive. This bug should be fixed for each driver. Reviewed by: ae (previous version), hselasky, melifaro Sponsored by: Mellanox Technologies MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D14702
* Move uio enums to sys/_uio.h.brooks2018-08-242-11/+53
| | | | | | | | | | | | | | Include _uio.h instead of uio.h in several headers to reduce header polution. Fix a few places that relied on header polution to get the uio.h header. I have not moved struct uio as many more things that use it rely on header polution to get other definitions from uio.h. Reviewed by: cem, kib, markj Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14811
* Add the "TCP Blackbox Recorder"jtl2018-08-241-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | which we discussed at the developer summits at BSDCan and BSDCam in 2017. The TCP Blackbox Recorder allows you to capture events on a TCP connection in a ring buffer. It stores metadata with the event. It optionally stores the TCP header associated with an event (if the event is associated with a packet) and also optionally stores information on the sockets. It supports setting a log ID on a TCP connection and using this to correlate multiple connections that share a common log ID. You can log connections in different modes. If you are doing a coordinated test with a particular connection, you may tell the system to put it in mode 4 (continuous dump). Or, if you just want to monitor for errors, you can put it in mode 1 (ring buffer) and dump all the ring buffers associated with the connection ID when we receive an error signal for that connection ID. You can set a default mode that will be applied to a particular ratio of incoming connections. You can also manually set a mode using a socket option. This commit includes only basic probes. rrs@ has added quite an abundance of probes in his TCP development work. He plans to commit those soon. There are user-space programs which we plan to commit as ports. These read the data from the log device and output pcapng files, and then let you analyze the data (and metadata) in the pcapng files. Reviewed by: gnn (previous version) Obtained from: Netflix, Inc. Relnotes: yes Differential Revision: https://reviews.freebsd.org/D11085
* Add _IOC_NEWLEN() and _IOC_NEWTYPE() macros.brooks2018-08-241-0/+4
| | | | | | | | | | | | These macros take an existing ioctl(2) command and replace the length with the specified length or length of the specified type respectively. These can be used to define commands for 32-bit compatibility with fewer opportunities for cut-and-paste errors then a whole new definition. Reviewed by: cem, kib Obtained from: CheriBSD Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14706
* This is an implementation of the client side of TCP Fast Open (TFO)pkelsey2018-08-241-2/+14
| | | | | | | | | | | | | | [RFC7413]. It also includes a pre-shared key mode of operation in which the server requires the client to be in possession of a shared secret in order to successfully open TFO connections with that server. The names of some existing fastopen sysctls have changed (e.g., net.inet.tcp.fastopen.enabled -> net.inet.tcp.fastopen.server_enable). Reviewed by: tuexen MFC after: 1 month Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D14047
* Follow the RFC6980 and silently ignore following IPv6 NDP messagesae@FreeBSD.org2018-08-241-0/+1
| | | | | | | | | | | | | | | | that had the IPv6 fragmentation header: o Neighbor Solicitation o Neighbor Advertisement o Router Solicitation o Router Advertisement o Redirect Introduce M_FRAGMENTED mbuf flag, and set it after IPv6 fragment reassembly is completed. Then check the presence of this flag in correspondig ND6 handling routines. PR: 224247 MFC after: 2 weeks
* SPDX: license IDs for some ISC-related files.pfg2018-08-242-2/+2
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* Garbage collect IFCAP_POLLING_NOCOUNT.glebius2018-08-241-1/+1
| | | | | It wasn't used since very beginning of polling(4). The module always ignored return value from driver polling handler.
* sys/sys: further adoption of SPDX licensing ID tags.pfg2018-08-243-0/+6
| | | | | | | | | | | | 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.
* include: further adoption of SPDX licensing ID tags.pfg2018-08-243-1/+7
| | | | | | | | | | | | | | 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.
* sys: further adoption of SPDX licensing ID tags.pfg2018-08-2418-0/+36
| | | | | | | | | | | | | | 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.
* Use hardware timestamps to report packet timestampskib2018-08-241-0/+11
| | | | | | | | | | | | | | | | for SO_TIMESTAMP and other similar socket options. Provide new control message SCM_TIME_INFO to supply information about timestamp. Currently it indicates that the timestamp was hardware-assisted and high-precision, for software timestamps the message is not returned. Reserved fields are added to ABI to report additional info about it, it is expected that raw hardware clock value might be useful for some applications. Reviewed by: gallatin (previous version), hselasky Sponsored by: Mellanox Technologies MFC after: 2 weeks X-Differential revision: https://reviews.freebsd.org/D12638
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