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* Add POSIX routines called posix_spawn() and posix_spawnp(), whichdavidxu2008-06-175-14/+532
| | | | | | | | | can be used as replacements for exec/fork in a lot of cases. This change also added execvpe() which allows environment variable PATH to be used for searching executable file, it is used for implementing posix_spawnp(). PR: standards/122051
* Make it clearer that privilege is needed to reduce as well asfanf2008-06-161-1/+1
| | | | increase group membership.
* Rework the my_mbtowc_utf8() support function to fully match the mbtowc()kientzle2008-06-151-14/+14
| | | | calling convention, not the mbrtowc() convention.
* Since wctomb() returns int, temporaries should be int, not size_t.kientzle2008-06-151-2/+2
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* A number of minor corrections to the support for external compressionkientzle2008-06-153-13/+45
| | | | | | programs: * Support platforms that have fork() but not vfork() * Don't write(), select(), or poll() against closed file descriptors
* Be a little more careful about closing file descriptors that may not exist.kientzle2008-06-151-1/+2
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* MfP4: test harness improvements.kientzle2008-06-156-34/+99
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* Fix a bad cast.kientzle2008-06-151-1/+1
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* Fix reading TOC from zip archives with unsupportedkientzle2008-06-151-2/+6
| | | | | compression. We can't read the body, but we shouldn't try to skip the body twice.
* Mark hardlinks that lack any other interesting filetype informationkientzle2008-06-151-0/+5
| | | | with an 'h'.
* Portability: We can get away with the older and better-supportedkientzle2008-06-152-33/+24
| | | | | wctomb() here; we don't need wcrtomb(). In particular, this fixes libarchive building on FreeBSD 4.
* Portability: wchar_t is defined in stdlib.h on some systems.kientzle2008-06-151-0/+3
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* archive.h is no longer constructed from archive.h.in,kientzle2008-06-153-15/+1
| | | | | so we can rename it and drop some no-longer-necessary build magic from the Makefile.
* Fix the new generic link resolver in libarchive to never matchkientzle2008-06-152-0/+21
| | | | | | | dirs as hardlinks. In particular, this fixes some recent ports build failures. Thanks to: Kris Kennaway
* Turn sgtty into a binary-only compatibility interface.ed2008-06-144-201/+2
| | | | | | | | | | | | | | | | sgtty was the original interface to configure terminal attributes on my UNIX-like operating systems. It has been deprecated by the POSIX termios interface, which is implemented in almost any modern system. An advantage of turning this into a binary compatibility interface, is that we can now eventually remove the COMPAT_43TTY switch from kernel configurations. This removes many ioctl()'s from the TTY layer. While there, increase the __FreeBSD_version, which may be useful for the people working on the Ports tree. Reviewed by: kib Approved by: philip (mentor)
* Fix spelling.thompsa2008-06-131-1/+1
| | | | | PR: docs/124561 Submitted by: Sam Banks
* Bring missing getsockopt(2) options: SO_LABEL SO_PEERLABEL SO_LISTENQLIMITwkoszek2008-06-121-2/+29
| | | | | | | | SO_LISTENQLEN SO_LISTENINCQLEN to the manual page. Till now those were only present in sys/socket.h file. Reviewed by: rwatson, gnn, keramida (with mdoc hat)
* In the error path through base_alloc(), release base_mtx [1].jasone2008-06-101-3/+7
| | | | | | Fix bit vector initialization for run headers. Submitted by: [1] Mike Schuster <schuster@adobe.com>
* Don't store a pointer in "next" if we're never going to use it.cperciva2008-06-091-2/+2
| | | | | | Fix typo in checking results of strchr. Found by: Coverity Prevent
* Make pthread_cleanup_push() and pthread_cleanup_pop() as a pair of macros,davidxu2008-06-095-26/+50
| | | | | | | use stack space to keep cleanup information, this eliminates overhead of calling malloc() and free() in thread library. Discussed on: thread@
* Call the fcntl compatiblity wrapper from the thread library fcntl wrappersdfr2008-05-305-5/+10
| | | | | | so that they get the benefit of the (limited) forward ABI compatibility. MFC after: 1 week
* Eliminate global mutex by using pthread_once's state field asdavidxu2008-05-301-33/+29
| | | | a semaphore.
* - Reduce function call overhead for uncontended case.davidxu2008-05-293-217/+104
| | | | | - Remove unused flags MUTEX_FLAGS_* and their code. - Check validity of the timeout parameter in mutex_self_lock().
* Make fcntl() a weak symbol so that it can be overridden by thread libraries.dfr2008-05-271-1/+3
| | | | MFC after: 2 days
* Minor code hardening: Verify the final bytes of the stringkientzle2008-05-271-1/+1
| | | | are actually accessible before trying to use them.
* Until the old archive.h.in gets renamed to archive.h in the repository,kientzle2008-05-271-0/+6
| | | | | we still need some Makefile trickery to ensure archive.h is correctly built for the test harness.
* MFp4: libarchive 2.5.4b. (Still 'b' until I get a bit morekientzle2008-05-2649-938/+3609
| | | | | | | | | | | | | | | | | | | | | | | | | | feedback, but the 2.5 branch is shaping up nicely.) In addition to many small bug fixes and code improvements: * Another iteration of versioning; I think I've got it right now. * Portability: A lot of progress on Windows support (though I'm not committing all of the Windows support files to FreeBSD CVS) * Explicit tracking of MBS, WCS, and UTF-8 versions of strings in archive_entry; the archive_entry routines now correctly return NULL only when something is unset, setting NULL properly clears string values. Most charset conversions have been pushed down to archive_string. * Better handling of charset conversion failure when writing or reading UTF-8 headers in pax archives * archive_entry_linkify() provides multiple strategies for hardlink matching to suit different format expectations * More accurate bzip2 format detection * Joerg Sonnenberger's extensive improvements to mtree support * Rough support for self-extracting ZIP archives. Not an ideal approach, but it works for the archives I've tried. * New "sparsify" option in archive_write_disk converts blocks of nulls into seeks. * Better default behavior for the test harness; it now reports all failures by default instead of coredumping at the first one.
* Use _WANT_FILE to make struct file visible from userland. This ispjd2008-05-261-2/+1
| | | | | | similar to _WANT_UCRED and _WANT_PRISON and seems to be much nicer than defining _KERNEL. It is also needed for my sys/refcount.h change going in soon.
* Remove netatm from HEAD as it is not MPSAFE and relies on the now removedrwatson2008-05-259-1564/+0
| | | | | | | | | | | | | | | | | | | NET_NEEDS_GIANT. netatm has been disconnected from the build for ten months in HEAD/RELENG_7. Specifics: - netatm include files - netatm command line management tools - libatm - ATM parts in rescue and sysinstall - sample configuration files and documents - kernel support as a module or in NOTES - netgraph wrapper nodes for netatm - ctags data for netatm. - netatm-specific device drivers. MFC after: 3 weeks Reviewed by: bz Discussed with: bms, bz, harti
* Relax the strict type check because gcc as distributed doesn't createjb2008-05-231-1/+1
| | | | | debug strtabs with type SHT_STRTAB. Although we could change FreeBSD's gcc, we really need to play nicely with gcc as distributed by the FSF.
* Change the alignment of the NOTE to match what gcc does.jb2008-05-231-1/+1
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* Add the case for SHT_AMD64_UNWIND.jb2008-05-231-0/+2
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* Check that lseek(2) succeeds and puts us where we expect. [1]cperciva2008-05-231-3/+7
| | | | | | | | | While we're here, fix a long-standing bug in the handling of write(2) errors: The API changed from "return # of bytes written" to "return status code" almost 4 years ago, so instead of returning (-1) we need to return ARCHIVE_FATAL. Found by: Coverity Prevent [1]
* We only use the string "?rwxrwxrwx " once, so inline it rather thancperciva2008-05-231-2/+1
| | | | | | declaring a variable which points to it. Aside from eliminating a line of code and one level of unnecessary indirection, this eliminates a false positive in Coverity.
* Hook libdwarf and libproc into the build.jb2008-05-221-2/+2
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* Add a BSD licensed DWARF library for use by the DTrace clients.jb2008-05-2217-0/+4083
| | | | | The API for this library is deliberately different to the GPL'd libdwarf to avoid licensing problems.
* Add the Makefile for the process library which was missed in the previousjb2008-05-221-0/+20
| | | | commit.
* Add a process library with some stubs that the DTrace client needs.jb2008-05-225-0/+473
| | | | | | | | | | | These will be fleshed out as part of the DTrace userland tracing development. For now, the kernel tracing part of DTrace requires minimal functionality for this library. The API for this library is deliberately different from the libproc in OpenSolaris due to licensing restrictions.
* Use 'dowrite' as an argument name instead of too general 'write'.pjd2008-05-202-7/+7
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* Return ARCHIVE_FATAL if we can't allocate memory instead of going ahead andcperciva2008-05-191-0/+1
| | | | | | dereferencing NULL. Found by: Coverity Prevent
* Clarify that "ante meridiem" and "post meridiem" mean the same thinggrog2008-05-161-2/+2
| | | | | | | | as the more commonly used "a.m." and "p.m.". Tripped over by: Callum Gibson. MFC after: 2 weeks
* Add new heimdal-1.1 library.dfr2008-05-151-2/+2
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* Clean up cpp logic and comments.jasone2008-05-141-8/+21
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* Commit missing mips libthr support that I thought I'd committed earlierimp2008-05-112-0/+141
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* Remove useless call to getdtablesize(2) in fdopen(3) and its uselessantoine2008-05-101-4/+0
| | | | | | | | | variable nofile. PR: 123109 Submitted by: Christoph Mallon Approved by: rwatson (mentor) MFC after: 1 month
* Misc mdoc improvements and a typo fix.brueffer2008-05-101-6/+10
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* Add setfib.2 to the list of man pages to addjulian2008-05-091-1/+1
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* setfib.2 got left out of the last commitjulian2008-05-091-0/+79
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* Add code to allow the system to handle multiple routing tables.julian2008-05-092-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This particular implementation is designed to be fully backwards compatible and to be MFC-able to 7.x (and 6.x) Currently the only protocol that can make use of the multiple tables is IPv4 Similar functionality exists in OpenBSD and Linux. From my notes: ----- One thing where FreeBSD has been falling behind, and which by chance I have some time to work on is "policy based routing", which allows different packet streams to be routed by more than just the destination address. Constraints: ------------ I want to make some form of this available in the 6.x tree (and by extension 7.x) , but FreeBSD in general needs it so I might as well do it in -current and back port the portions I need. One of the ways that this can be done is to have the ability to instantiate multiple kernel routing tables (which I will now refer to as "Forwarding Information Bases" or "FIBs" for political correctness reasons). Which FIB a particular packet uses to make the next hop decision can be decided by a number of mechanisms. The policies these mechanisms implement are the "Policies" referred to in "Policy based routing". One of the constraints I have if I try to back port this work to 6.x is that it must be implemented as a EXTENSION to the existing ABIs in 6.x so that third party applications do not need to be recompiled in timespan of the branch. This first version will not have some of the bells and whistles that will come with later versions. It will, for example, be limited to 16 tables in the first commit. Implementation method, Compatible version. (part 1) ------------------------------- For this reason I have implemented a "sufficient subset" of a multiple routing table solution in Perforce, and back-ported it to 6.x. (also in Perforce though not always caught up with what I have done in -current/P4). The subset allows a number of FIBs to be defined at compile time (8 is sufficient for my purposes in 6.x) and implements the changes needed to allow IPV4 to use them. I have not done the changes for ipv6 simply because I do not need it, and I do not have enough knowledge of ipv6 (e.g. neighbor discovery) needed to do it. Other protocol families are left untouched and should there be users with proprietary protocol families, they should continue to work and be oblivious to the existence of the extra FIBs. To understand how this is done, one must know that the current FIB code starts everything off with a single dimensional array of pointers to FIB head structures (One per protocol family), each of which in turn points to the trie of routes available to that family. The basic change in the ABI compatible version of the change is to extent that array to be a 2 dimensional array, so that instead of protocol family X looking at rt_tables[X] for the table it needs, it looks at rt_tables[Y][X] when for all protocol families except ipv4 Y is always 0. Code that is unaware of the change always just sees the first row of the table, which of course looks just like the one dimensional array that existed before. The entry points rtrequest(), rtalloc(), rtalloc1(), rtalloc_ign() are all maintained, but refer only to the first row of the array, so that existing callers in proprietary protocols can continue to do the "right thing". Some new entry points are added, for the exclusive use of ipv4 code called in_rtrequest(), in_rtalloc(), in_rtalloc1() and in_rtalloc_ign(), which have an extra argument which refers the code to the correct row. In addition, there are some new entry points (currently called rtalloc_fib() and friends) that check the Address family being looked up and call either rtalloc() (and friends) if the protocol is not IPv4 forcing the action to row 0 or to the appropriate row if it IS IPv4 (and that info is available). These are for calling from code that is not specific to any particular protocol. The way these are implemented would change in the non ABI preserving code to be added later. One feature of the first version of the code is that for ipv4, the interface routes show up automatically on all the FIBs, so that no matter what FIB you select you always have the basic direct attached hosts available to you. (rtinit() does this automatically). You CAN delete an interface route from one FIB should you want to but by default it's there. ARP information is also available in each FIB. It's assumed that the same machine would have the same MAC address, regardless of which FIB you are using to get to it. This brings us as to how the correct FIB is selected for an outgoing IPV4 packet. Firstly, all packets have a FIB associated with them. if nothing has been done to change it, it will be FIB 0. The FIB is changed in the following ways. Packets fall into one of a number of classes. 1/ locally generated packets, coming from a socket/PCB. Such packets select a FIB from a number associated with the socket/PCB. This in turn is inherited from the process, but can be changed by a socket option. The process in turn inherits it on fork. I have written a utility call setfib that acts a bit like nice.. setfib -3 ping target.example.com # will use fib 3 for ping. It is an obvious extension to make it a property of a jail but I have not done so. It can be achieved by combining the setfib and jail commands. 2/ packets received on an interface for forwarding. By default these packets would use table 0, (or possibly a number settable in a sysctl(not yet)). but prior to routing the firewall can inspect them (see below). (possibly in the future you may be able to associate a FIB with packets received on an interface.. An ifconfig arg, but not yet.) 3/ packets inspected by a packet classifier, which can arbitrarily associate a fib with it on a packet by packet basis. A fib assigned to a packet by a packet classifier (such as ipfw) would over-ride a fib associated by a more default source. (such as cases 1 or 2). 4/ a tcp listen socket associated with a fib will generate accept sockets that are associated with that same fib. 5/ Packets generated in response to some other packet (e.g. reset or icmp packets). These should use the FIB associated with the packet being reponded to. 6/ Packets generated during encapsulation. gif, tun and other tunnel interfaces will encapsulate using the FIB that was in effect withthe proces that set up the tunnel. thus setfib 1 ifconfig gif0 [tunnel instructions] will set the fib for the tunnel to use to be fib 1. Routing messages would be associated with their process, and thus select one FIB or another. messages from the kernel would be associated with the fib they refer to and would only be received by a routing socket associated with that fib. (not yet implemented) In addition Netstat has been edited to be able to cope with the fact that the array is now 2 dimensional. (It looks in system memory using libkvm (!)). Old versions of netstat see only the first FIB. In addition two sysctls are added to give: a) the number of FIBs compiled in (active) b) the default FIB of the calling process. Early testing experience: ------------------------- Basically our (IronPort's) appliance does this functionality already using ipfw fwd but that method has some drawbacks. For example, It can't fully simulate a routing table because it can't influence the socket's choice of local address when a connect() is done. Testing during the generating of these changes has been remarkably smooth so far. Multiple tables have co-existed with no notable side effects, and packets have been routes accordingly. ipfw has grown 2 new keywords: setfib N ip from anay to any count ip from any to any fib N In pf there seems to be a requirement to be able to give symbolic names to the fibs but I do not have that capacity. I am not sure if it is required. SCTP has interestingly enough built in support for this, called VRFs in Cisco parlance. it will be interesting to see how that handles it when it suddenly actually does something. Where to next: -------------------- After committing the ABI compatible version and MFCing it, I'd like to proceed in a forward direction in -current. this will result in some roto-tilling in the routing code. Firstly: the current code's idea of having a separate tree per protocol family, all of the same format, and pointed to by the 1 dimensional array is a bit silly. Especially when one considers that there is code that makes assumptions about every protocol having the same internal structures there. Some protocols don't WANT that sort of structure. (for example the whole idea of a netmask is foreign to appletalk). This needs to be made opaque to the external code. My suggested first change is to add routing method pointers to the 'domain' structure, along with information pointing the data. instead of having an array of pointers to uniform structures, there would be an array pointing to the 'domain' structures for each protocol address domain (protocol family), and the methods this reached would be called. The methods would have an argument that gives FIB number, but the protocol would be free to ignore it. When the ABI can be changed it raises the possibilty of the addition of a fib entry into the "struct route". Currently, the structure contains the sockaddr of the desination, and the resulting fib entry. To make this work fully, one could add a fib number so that given an address and a fib, one can find the third element, the fib entry. Interaction with the ARP layer/ LL layer would need to be revisited as well. Qing Li has been working on this already. This work was sponsored by Ironport Systems/Cisco PR: Reviewed by: several including rwatson, bz and mlair (parts each) Approved by: Obtained from: Ironport systems/Cisco MFC after: Security: PR: Submitted by: Reviewed by: Approved by: Obtained from: MFC after: Security:
* - Update for ncurses 5.6-20080509rafan2008-05-091-1/+1
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