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path: root/sys/netipx/ipx_pcb.c
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* Remove IPX support.Gleb Smirnoff2014-03-141-429/+0
| | | | | | | | | | | | | | IPX was a network transport protocol in Novell's NetWare network operating system from late 80s and then 90s. The NetWare itself switched to TCP/IP as default transport in 1998. Later, in this century the Novell Open Enterprise Server became successor of Novell NetWare. The last release that claimed to still support IPX was OES 2 in 2007. Routing equipment vendors (e.g. Cisco) discontinued support for IPX in 2011. Thus, IPX won't be supported in FreeBSD 11.0-RELEASE. Notes: svn path=/head/; revision=263140
* The r48589 promised to remove implicit inclusion of if_var.h soon. PrepareGleb Smirnoff2013-10-261-0/+1
| | | | | | | | | | | to this event, adding if_var.h to files that do need it. Also, include all includes that now are included due to implicit pollution via if_var.h Sponsored by: Netflix Sponsored by: Nginx, Inc. Notes: svn path=/head/; revision=257176
* Use queue(9) instead of hand-crafted link lists for the global IPXRobert Watson2009-06-241-5/+7
| | | | | | | | | | address list (ipx_ifaddr -> ipx_ifaddrhead), and generally adopt the naming and usage conventions found in netinet. MFC after: 6 weeks Notes: svn path=/head/; revision=194905
* Modify most routines returning 'struct ifaddr *' to return referencesRobert Watson2009-06-231-7/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rather than pointers, requiring callers to properly dispose of those references. The following routines now return references: ifaddr_byindex ifa_ifwithaddr ifa_ifwithbroadaddr ifa_ifwithdstaddr ifa_ifwithnet ifaof_ifpforaddr ifa_ifwithroute ifa_ifwithroute_fib rt_getifa rt_getifa_fib IFP_TO_IA ip_rtaddr in6_ifawithifp in6ifa_ifpforlinklocal in6ifa_ifpwithaddr in6_ifadd carp_iamatch6 ip6_getdstifaddr Remove unused macro which didn't have required referencing: IFP_TO_IA6 This closes many small races in which changes to interface or address lists while an ifaddr was in use could lead to use of freed memory (etc). In a few cases, add missing if_addr_list locking required to safely acquire references. Because of a lack of deep copying support, we accept a race in which an in6_ifaddr pointed to by mbuf tags and extracted with ip6_getdstifaddr() doesn't hold a reference while in transmit. Once we have mbuf tag deep copy support, this can be fixed. Reviewed by: bz Obtained from: Apple, Inc. (portions) MFC after: 6 weeks (portions) Notes: svn path=/head/; revision=194760
* Add a new function, ifa_ifwithaddr_check(), which rather than returningRobert Watson2009-06-221-1/+1
| | | | | | | | | | | | | a pointer to an ifaddr matching the passed socket address, returns a boolean indicating whether one was present. In the (near) future, ifa_ifwithaddr() will return a referenced ifaddr rather than a raw ifaddr pointer, and the new wrapper will allow callers that care only about the boolean condition to avoid having to free that reference. MFC after: 3 weeks Notes: svn path=/head/; revision=194622
* Introduce basic locking of global IPX address list 'ipx_ifaddr' usingRobert Watson2009-06-211-4/+16
| | | | | | | | | | | | a new rwlock, ipx_ifaddr_rw, wrapped with macros. This locking is necessary but not sufficient, in isolation, to satisfy the stability requirements of a fully parallel IPX input path during interface reconfiguration. MFC after: 3 weeks Notes: svn path=/head/; revision=194608
* Retire the MALLOC and FREE macros. They are an abomination unto style(9).Dag-Erling Smørgrav2008-10-231-2/+2
| | | | | | | MFC after: 3 months Notes: svn path=/head/; revision=184205
* Use ANSI C function declarations throughout netipx.Robert Watson2007-05-111-34/+15
| | | | | | | Remove 'register' use. Notes: svn path=/head/; revision=169463
* Reduce network stack oddness: implement .pru_sockaddr and .pru_peeraddrRobert Watson2007-05-111-2/+2
| | | | | | | | | | | protocol entry points using functions named proto_getsockaddr and proto_getpeeraddr rather than proto_setsockaddr and proto_setpeeraddr. While it's true that sockaddrs are allocated and set, the net effect is to retrieve (get) the socket address or peer address from a socket, not set it, so align names to that intent. Notes: svn path=/head/; revision=169462
* Factor out UCB and my copyrights from copyrights of Mike Mitchell;Robert Watson2007-01-081-1/+27
| | | | | | | | | | the former use a three-clause BSD license (per UCB authorization letter), whereas he uses a four-clause BSD license. MFC after: 3 days Notes: svn path=/head/; revision=165899
* Sweep kernel replacing suser(9) calls with priv(9) calls, assigningRobert Watson2006-11-061-4/+4
| | | | | | | | | | | | | | | | specific privilege names to a broad range of privileges. These may require some future tweaking. Sponsored by: nCircle Network Security, Inc. Obtained from: TrustedBSD Project Discussed on: arch@ Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri, Alex Lyashkov <umka at sevcity dot net>, Skip Ford <skip dot ford at verizon dot net>, Antoine Brodin <antoine dot brodin at laposte dot net> Notes: svn path=/head/; revision=164033
* Rework IPX/SPX socket and pcb reference model:Robert Watson2006-03-251-5/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Introduce invariant that all IPX/SPX sockets will have valid so_pcb pointers to ipxpcb structures, and that for SPX, the control block pointer will always be valid. Don't attempt to free the socket or pcb at various odd points, such as disconnect. - Add a new ipxpcb flag, IPXP_DROPPED, which will be set in place of freeing PCB's so that this invariant can be maintained. This flag is now checked instead of a NULL check in various socket protocol calls. - Introduce many assertions that this invariant holds. - Various pieces of code, such as the SPX timer code, no longer needs to jump through hoops in case it frees a PCB while running. - Break out ipx_pcbfree() from ipx_pcbdetach(). Likewise spx_pcbdetach(). - Comment on some SMP-related limitations to the SPX code. - Update copyrights. MFC after: 1 month Notes: svn path=/head/; revision=157128
* Clean up and style(9) SPX code prior to significant functional changesRobert Watson2006-03-241-3/+5
| | | | | | | | | | | | | | | | | being committed: - Wrap comments more evenly on right border. - Clean up braces. Also, along similar lines: - Assert some pointers are non-NULL before dereferencing them. - Remove one assertion that looks, on face value, poor. MFC after: 1 month Notes: svn path=/head/; revision=157094
* Assert or acquire the IPX PCB list lock or IPX PCB locks throughoutRobert Watson2005-01-091-1/+21
| | | | | | | | | | | | the IPX-related PCB routines. In general, the list lock is required to iterate the PCB list, either for read or write; the PCB lock is required to access or modify a PCB. To change the binding of a PCB, both locks must be held. MFC after: 3 weeks Notes: svn path=/head/; revision=139928
* Introduce a global mutex, ipxpcb_list_mtx, to protect the globalRobert Watson2005-01-091-0/+2
| | | | | | | | | | | | | | | IPX PCB lists. Add macros to initialize, destroy, lock, unlock, and assert the mutex. Initialize the mutex when IPX is started. Add per-IPX PCB mutexes, ipxp_mtx in struct ipxpcb, to protect per-PCB IPX/SPX state. Add macros to initialize, destroy, lock, unlock, and assert the mutex. Initialize the mutex when a new PCB is allocated; destroy it when the PCB is free'd. MFC after: 2 weeks Notes: svn path=/head/; revision=139925
* In ipx_setsockaddr(), use M_WAITOK instead of M_NOWAIT so that theRobert Watson2005-01-091-2/+2
| | | | | | | | | | call always succeeds, avoiding causing the caller to return success even though the returned *sockaddr is NULL. MFC after: 2 weeks Notes: svn path=/head/; revision=139924
* /* -> /*- for license, minor formatting changesWarner Losh2005-01-071-1/+1
| | | | Notes: svn path=/head/; revision=139823
* Eliminate XXX comments regarding allocation failures when retrievingRobert Watson2005-01-021-3/+3
| | | | | | | | | the peer address by using M_WAITOK in ipx_setpeeraddr() to prevent allocation failure. The socket reference used to reach these calls will prevent the ipxpcb from being released prematurely. Notes: svn path=/head/; revision=139587
* Trim trailing whitespace.Robert Watson2005-01-021-6/+6
| | | | Notes: svn path=/head/; revision=139584
* Use 'NULL' in preference to '0' for pointer comparisons.Robert Watson2005-01-021-3/+3
| | | | | | | MFC after: 2 weeks Notes: svn path=/head/; revision=139559
* Use RTFREE() to free route references rather than rtfree(), as rtfree()Robert Watson2005-01-021-1/+1
| | | | | | | | | | | expects a locked route reference. This removes a panic that occurs when connected ipxpcb is closed and its route free'd, and may have been present since the route locking took place. MFC after: 2 weeks Notes: svn path=/head/; revision=139557
* Prefer rtalloc_ign() API to rtalloc() API.Robert Watson2005-01-021-1/+1
| | | | Notes: svn path=/head/; revision=139556
* Move the definition of ipxpcb_lport_cache from ipx_input.c to ipx_pcb.c,Robert Watson2005-01-011-0/+1
| | | | | | | the only source file where it is actually used. Notes: svn path=/head/; revision=139551
* Marginally reformat copyright statements to remove an excess ','.Robert Watson2004-12-311-1/+1
| | | | Notes: svn path=/head/; revision=139485
* Use a global variable, ipxpcb_lport_cache, to cache the most recentlyRobert Watson2004-12-301-5/+5
| | | | | | | used IPX port number, rather than using the global ipxpcb list head. Notes: svn path=/head/; revision=139445
* Convert netipx to use queue(9) doubly-linked lists instead of home-brewRobert Watson2004-12-301-4/+5
| | | | | | | linked lists for ipxpcb's. Notes: svn path=/head/; revision=139444
* Garbage collect unused (and incompletely implemented) functions:Robert Watson2004-12-301-55/+0
| | | | | | | | | | | - ipx_pcbnotify(), which is never called. - ipx_rtchange(), which is never called, is incomplete inplemented, and also #ifdef notdef. - spx_fixmtu(), which is never called, is incompletely implemented, and also #ifdef notdef. Notes: svn path=/head/; revision=139443
* Push acquisition of the accept mutex out of sofree() into the callerRobert Watson2004-10-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (sorele()/sotryfree()): - This permits the caller to acquire the accept mutex before the socket mutex, avoiding sofree() having to drop the socket mutex and re-order, which could lead to races permitting more than one thread to enter sofree() after a socket is ready to be free'd. - This also covers clearing of the so_pcb weak socket reference from the protocol to the socket, preventing races in clearing and evaluation of the reference such that sofree() might be called more than once on the same socket. This appears to close a race I was able to easily trigger by repeatedly opening and resetting TCP connections to a host, in which the tcp_close() code called as a result of the RST raced with the close() of the accepted socket in the user process resulting in simultaneous attempts to de-allocate the same socket. The new locking increases the overhead for operations that may potentially free the socket, so we will want to revise the synchronization strategy here as we normalize the reference counting model for sockets. The use of the accept mutex in freeing of sockets that are not listen sockets is primarily motivated by the potential need to remove the socket from the incomplete connection queue on its parent (listen) socket, so cleaning up the reference model here may allow us to substantially weaken the synchronization requirements. RELENG_5_3 candidate. MFC after: 3 days Reviewed by: dwhite Discussed with: gnn, dwhite, green Reported by: Marc UBM Bocklet <ubm at u-boot-man dot de> Reported by: Vlad <marchenko at gmail dot com> Notes: svn path=/head/; revision=136682
* Extend coverage of SOCK_LOCK(so) to include so_count, the socketRobert Watson2004-06-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | reference count: - Assert SOCK_LOCK(so) macros that directly manipulate so_count: soref(), sorele(). - Assert SOCK_LOCK(so) in macros/functions that rely on the state of so_count: sofree(), sotryfree(). - Acquire SOCK_LOCK(so) before calling these functions or macros in various contexts in the stack, both at the socket and protocol layers. - In some cases, perform soisdisconnected() before sotryfree(), as this could result in frobbing of a non-present socket if sotryfree() actually frees the socket. - Note that sofree()/sotryfree() will release the socket lock even if they don't free the socket. Submitted by: sam Sponsored by: FreeBSD Foundation Obtained from: BSD/OS Notes: svn path=/head/; revision=130387
* Rename dup_sockaddr() to sodupsockaddr() for consistency with otherRobert Watson2004-03-011-2/+2
| | | | | | | | | | | | | | | functions in kern_socket.c. Rename the "canwait" field to "mflags" and pass M_WAITOK and M_NOWAIT in from the caller context rather than "1" or "0". Correct mflags pass into mac_init_socket() from previous commit to not include M_ZERO. Submitted by: sam Notes: svn path=/head/; revision=126425
* Use __FBSDID().David E. O'Brien2003-06-111-2/+3
| | | | Notes: svn path=/head/; revision=116189
* Back out my lats commit of locking down a socket, it conflicts with hsu's work.Seigo Tanimura2002-05-311-15/+3
| | | | | | | Requested by: hsu Notes: svn path=/head/; revision=97658
* Lock down a socket, milestone 1.Seigo Tanimura2002-05-201-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | o Add a mutex (sb_mtx) to struct sockbuf. This protects the data in a socket buffer. The mutex in the receive buffer also protects the data in struct socket. o Determine the lock strategy for each members in struct socket. o Lock down the following members: - so_count - so_options - so_linger - so_state o Remove *_locked() socket APIs. Make the following socket APIs touching the members above now require a locked socket: - sodisconnect() - soisconnected() - soisconnecting() - soisdisconnected() - soisdisconnecting() - sofree() - soref() - sorele() - sorwakeup() - sotryfree() - sowakeup() - sowwakeup() Reviewed by: alfred Notes: svn path=/head/; revision=96972
* Change the suser() API to take advantage of td_ucred as well as do aJohn Baldwin2002-04-011-1/+1
| | | | | | | | | | | | | | | general cleanup of the API. The entire API now consists of two functions similar to the pre-KSE API. The suser() function takes a thread pointer as its only argument. The td_ucred member of this thread must be valid so the only valid thread pointers are curthread and a few kernel threads such as thread0. The suser_cred() function takes a pointer to a struct ucred as its first argument and an integer flag as its second argument. The flag is currently only used for the PRISON_ROOT flag. Discussed on: smp@ Notes: svn path=/head/; revision=93593
* Give struct socket structures a ref counting interface similar toMatthew Dillon2001-11-171-1/+1
| | | | | | | | | | vnodes. This will hopefully serve as a base from which we can expand the MP code. We currently do not attempt to obtain any mutex or SX locks, but the door is open to add them when we nail down exactly how that part of it is going to work. Notes: svn path=/head/; revision=86487
* KSE Milestone 2Julian Elischer2001-09-121-8/+8
| | | | | | | | | | | | | | | | | Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha Notes: svn path=/head/; revision=83366
* Convert more malloc+bzero to malloc+M_ZERO.David Malone2000-12-081-2/+1
| | | | | | | | Submitted by: josh@zipperup.org Submitted by: Robert Drehmel <robd@gmx.net> Notes: svn path=/head/; revision=69781
* Move suser() and suser_xxx() prototypes and a related #define fromPoul-Henning Kamp2000-10-291-1/+0
| | | | | | | | | | | | <sys/proc.h> to <sys/systm.h>. Correctly document the #includes needed in the manpage. Add one now needed #include of <sys/systm.h>. Remove the consequent 48 unused #includes of <sys/proc.h>. Notes: svn path=/head/; revision=67893
* Get rid of the old XNS checksum code and implement it the IPX way.John Hay1999-08-281-0/+2
| | | | | | | | PR: 13374 Submitted by: Boris Popov <bp@butya.kz> Notes: svn path=/head/; revision=50519
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* Suser() simplification:Poul-Henning Kamp1999-04-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | 1: s/suser/suser_xxx/ 2: Add new function: suser(struct proc *), prototyped in <sys/proc.h>. 3: s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/ The remaining suser_xxx() calls will be scrutinized and dealt with later. There may be some unneeded #include <sys/cred.h>, but they are left as an exercise for Bruce. More changes to the suser() API will come along with the "jail" code. Notes: svn path=/head/; revision=46112
* Make it possible to use lo0 as an internal IPX network. This is usefullJohn Hay1999-02-061-2/+1
| | | | | | | | | for mars_nwe server and nwfs. PR: 9871 Submitted by: Boris Popov <bp@butya.kz> Notes: svn path=/head/; revision=43712
* Staticize.Eivind Eklund1998-02-091-2/+2
| | | | Notes: svn path=/head/; revision=33181
* Removed unused #includes.Bruce Evans1997-10-281-2/+1
| | | | Notes: svn path=/head/; revision=30813
* Added used #include - don't depend on <sys/mbuf.h> includingBruce Evans1997-09-021-1/+2
| | | | | | | <sys/malloc.h> (unless we only use the bogusly shared M*WAIT flags). Notes: svn path=/head/; revision=29024
* Fix all areas of the system (or at least all those in LINT) to avoid storingGarrett Wollman1997-08-161-23/+18
| | | | | | | | | | | 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. Notes: svn path=/head/; revision=28270
* Removed the #ifdef IPXERRORMSGS'ed code. Fix a lot of style errors that IJohn Hay1997-06-261-4/+1
| | | | | | | | introduced with the previous commit. Style fixes Submitted by: Bruce Evans <bde@FreeBSD.ORG> Notes: svn path=/head/; revision=26965
* Mega IPX commit.John Hay1997-05-101-35/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the MAC address of an interface for the host part of an IPX address and not the MAC address of the first interface for every IPX address. This is more inline with the way others like Novell do it. Mostly Submitted by: "Serge A. Babkin" <babkin@hq.icb.chel.su> Take out the error messages (the ip icmp equivalent) with #ifdef IPXERRORMSGS. This is bogus and as far as I could figure out IPX don't have anything like it. This is a leftover from its XNS heritage. If nobody complains, I will take it out completely in a few weeks. Add some more ipxstat statistics counters. Make ipxprintfs a sysctl variable and off by default. Add IPX Netbios "routing" support. This is off by default and can be switched on with a sysctl knob. General code cleanup to at least use the same style throughout the IPX code, but also be more style(9) conformant. Also make a lot of functions static. If I don't get any complaints I'll bring all of this over to the 2.2 tree in a few weeks. Notes: svn path=/head/; revision=25652
* Make ipx compile again after the network interface changes.John Hay1997-05-011-8/+13
| | | | Notes: svn path=/head/; revision=25345
* Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are notPeter Wemm1997-02-221-1/+1
| | | | | | | ready for it yet. Notes: svn path=/head/; revision=22975
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