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Diffstat (limited to '')
| -rw-r--r-- | netwerk/sctp/src/netinet/sctp_userspace.c | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/netwerk/sctp/src/netinet/sctp_userspace.c b/netwerk/sctp/src/netinet/sctp_userspace.c new file mode 100644 index 0000000000..71888901fe --- /dev/null +++ b/netwerk/sctp/src/netinet/sctp_userspace.c @@ -0,0 +1,425 @@ +/*- + * Copyright (c) 2011-2012 Irene Ruengeler + * Copyright (c) 2011-2012 Michael Tuexen + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + + +#ifdef _WIN32 +#include <netinet/sctp_pcb.h> +#include <sys/timeb.h> +#include <iphlpapi.h> +#if !defined(__MINGW32__) +#pragma comment(lib, "iphlpapi.lib") +#endif +#endif +#include <netinet/sctp_os_userspace.h> +#if defined(__FreeBSD__) +#include <pthread_np.h> +#endif + +#if defined(__linux__) +#include <sys/prctl.h> +#endif + +#if defined(_WIN32) +/* Adapter to translate Unix thread start routines to Windows thread start + * routines. + */ +#if defined(__MINGW32__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wpedantic" +#endif +static DWORD WINAPI +sctp_create_thread_adapter(void *arg) { + start_routine_t start_routine = (start_routine_t)arg; + return start_routine(NULL) == NULL; +} + +int +sctp_userspace_thread_create(userland_thread_t *thread, start_routine_t start_routine) +{ + *thread = CreateThread(NULL, 0, sctp_create_thread_adapter, + (void *)start_routine, 0, NULL); + if (*thread == NULL) + return GetLastError(); + return 0; +} + +#if defined(__MINGW32__) +#pragma GCC diagnostic pop +#endif + +#else +int +sctp_userspace_thread_create(userland_thread_t *thread, start_routine_t start_routine) +{ + return pthread_create(thread, NULL, start_routine, NULL); +} +#endif + +void +sctp_userspace_set_threadname(const char *name) +{ +#if defined(__APPLE__) + pthread_setname_np(name); +#endif +#if defined(__linux__) + prctl(PR_SET_NAME, name); +#endif +#if defined(__FreeBSD__) + pthread_set_name_np(pthread_self(), name); +#endif +} + +#if !defined(_WIN32) && !defined(__native_client__) +int +sctp_userspace_get_mtu_from_ifn(uint32_t if_index) +{ +#if defined(INET) || defined(INET6) + struct ifreq ifr; + int fd; +#endif + int mtu; + + if (if_index == 0xffffffff) { + mtu = 1280; + } else { + mtu = 0; +#if defined(INET) || defined(INET6) + memset(&ifr, 0, sizeof(struct ifreq)); + if (if_indextoname(if_index, ifr.ifr_name) != NULL) { + /* TODO can I use the raw socket here and not have to open a new one with each query? */ +#if defined(INET) + if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) >= 0) { +#else + if ((fd = socket(AF_INET6, SOCK_DGRAM, 0)) >= 0) { +#endif + if (ioctl(fd, SIOCGIFMTU, &ifr) >= 0) { + mtu = ifr.ifr_mtu; + } + close(fd); + } + } +#endif + } + return (mtu); +} +#endif + +#if defined(__native_client__) +int +sctp_userspace_get_mtu_from_ifn(uint32_t if_index) +{ + return 1280; +} +#endif + +#if defined(__APPLE__) || defined(__DragonFly__) || defined(__linux__) || defined(__native_client__) || defined(__NetBSD__) || defined(__QNX__) || defined(_WIN32) || defined(__Fuchsia__) || defined(__EMSCRIPTEN__) +int +timingsafe_bcmp(const void *b1, const void *b2, size_t n) +{ + const unsigned char *p1 = b1, *p2 = b2; + int ret = 0; + + for (; n > 0; n--) + ret |= *p1++ ^ *p2++; + return (ret != 0); +} +#endif + +#ifdef _WIN32 +int +sctp_userspace_get_mtu_from_ifn(uint32_t if_index) +{ +#if defined(INET) || defined(INET6) + PIP_ADAPTER_ADDRESSES pAdapterAddrs, pAdapt; + DWORD AdapterAddrsSize, Err; +#endif + int mtu; + + if (if_index == 0xffffffff) { + mtu = 1280; + } else { + mtu = 0; +#if defined(INET) || defined(INET6) + AdapterAddrsSize = 0; + pAdapterAddrs = NULL; + if ((Err = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, NULL, &AdapterAddrsSize)) != 0) { + if ((Err != ERROR_BUFFER_OVERFLOW) && (Err != ERROR_INSUFFICIENT_BUFFER)) { + SCTPDBG(SCTP_DEBUG_USR, "GetAdaptersAddresses() sizing failed with error code %d, AdapterAddrsSize = %d\n", Err, AdapterAddrsSize); + mtu = -1; + goto cleanup; + } + } + if ((pAdapterAddrs = (PIP_ADAPTER_ADDRESSES) GlobalAlloc(GPTR, AdapterAddrsSize)) == NULL) { + SCTPDBG(SCTP_DEBUG_USR, "Memory allocation error!\n"); + mtu = -1; + goto cleanup; + } + if ((Err = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, pAdapterAddrs, &AdapterAddrsSize)) != ERROR_SUCCESS) { + SCTPDBG(SCTP_DEBUG_USR, "GetAdaptersAddresses() failed with error code %d\n", Err); + mtu = -1; + goto cleanup; + } + for (pAdapt = pAdapterAddrs; pAdapt; pAdapt = pAdapt->Next) { + if (pAdapt->IfIndex == if_index) { + mtu = pAdapt->Mtu; + break; + } + } + cleanup: + if (pAdapterAddrs != NULL) { + GlobalFree(pAdapterAddrs); + } +#endif + } + return (mtu); +} + +void +getwintimeofday(struct timeval *tv) +{ + FILETIME filetime; + ULARGE_INTEGER ularge; + + GetSystemTimeAsFileTime(&filetime); + ularge.LowPart = filetime.dwLowDateTime; + ularge.HighPart = filetime.dwHighDateTime; + /* Change base from Jan 1 1601 00:00:00 to Jan 1 1970 00:00:00 */ +#if defined(__MINGW32__) + ularge.QuadPart -= 116444736000000000ULL; +#else + ularge.QuadPart -= 116444736000000000UI64; +#endif + /* + * ularge.QuadPart is now the number of 100-nanosecond intervals + * since Jan 1 1970 00:00:00. + */ +#if defined(__MINGW32__) + tv->tv_sec = (long)(ularge.QuadPart / 10000000ULL); + tv->tv_usec = (long)((ularge.QuadPart % 10000000ULL) / 10ULL); +#else + tv->tv_sec = (long)(ularge.QuadPart / 10000000UI64); + tv->tv_usec = (long)((ularge.QuadPart % 10000000UI64) / 10UI64); +#endif +} + +int +win_if_nametoindex(const char *ifname) +{ + IP_ADAPTER_ADDRESSES *addresses, *addr; + ULONG status, size; + int index = 0; + + if (!ifname) { + return 0; + } + + size = 0; + status = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, NULL, &size); + if (status != ERROR_BUFFER_OVERFLOW) { + return 0; + } + addresses = malloc(size); + status = GetAdaptersAddresses(AF_UNSPEC, 0, NULL, addresses, &size); + if (status == ERROR_SUCCESS) { + for (addr = addresses; addr; addr = addr->Next) { + if (addr->AdapterName && !strcmp(ifname, addr->AdapterName)) { + index = addr->IfIndex; + break; + } + } + } + + free(addresses); + return index; +} + +#if WINVER < 0x0600 +/* These functions are written based on the code at + * http://www.cs.wustl.edu/~schmidt/win32-cv-1.html + * Therefore, for the rest of the file the following applies: + * + * + * Copyright and Licensing Information for ACE(TM), TAO(TM), CIAO(TM), + * DAnCE(TM), and CoSMIC(TM) + * + * [1]ACE(TM), [2]TAO(TM), [3]CIAO(TM), DAnCE(TM), and [4]CoSMIC(TM) + * (henceforth referred to as "DOC software") are copyrighted by + * [5]Douglas C. Schmidt and his [6]research group at [7]Washington + * University, [8]University of California, Irvine, and [9]Vanderbilt + * University, Copyright (c) 1993-2012, all rights reserved. Since DOC + * software is open-source, freely available software, you are free to + * use, modify, copy, and distribute--perpetually and irrevocably--the + * DOC software source code and object code produced from the source, as + * well as copy and distribute modified versions of this software. You + * must, however, include this copyright statement along with any code + * built using DOC software that you release. No copyright statement + * needs to be provided if you just ship binary executables of your + * software products. + * + * You can use DOC software in commercial and/or binary software releases + * and are under no obligation to redistribute any of your source code + * that is built using DOC software. Note, however, that you may not + * misappropriate the DOC software code, such as copyrighting it yourself + * or claiming authorship of the DOC software code, in a way that will + * prevent DOC software from being distributed freely using an + * open-source development model. You needn't inform anyone that you're + * using DOC software in your software, though we encourage you to let + * [10]us know so we can promote your project in the [11]DOC software + * success stories. + * + * The [12]ACE, [13]TAO, [14]CIAO, [15]DAnCE, and [16]CoSMIC web sites + * are maintained by the [17]DOC Group at the [18]Institute for Software + * Integrated Systems (ISIS) and the [19]Center for Distributed Object + * Computing of Washington University, St. Louis for the development of + * open-source software as part of the open-source software community. + * Submissions are provided by the submitter ``as is'' with no warranties + * whatsoever, including any warranty of merchantability, noninfringement + * of third party intellectual property, or fitness for any particular + * purpose. In no event shall the submitter be liable for any direct, + * indirect, special, exemplary, punitive, or consequential damages, + * including without limitation, lost profits, even if advised of the + * possibility of such damages. Likewise, DOC software is provided as is + * with no warranties of any kind, including the warranties of design, + * merchantability, and fitness for a particular purpose, + * noninfringement, or arising from a course of dealing, usage or trade + * practice. Washington University, UC Irvine, Vanderbilt University, + * their employees, and students shall have no liability with respect to + * the infringement of copyrights, trade secrets or any patents by DOC + * software or any part thereof. Moreover, in no event will Washington + * University, UC Irvine, or Vanderbilt University, their employees, or + * students be liable for any lost revenue or profits or other special, + * indirect and consequential damages. + * + * DOC software is provided with no support and without any obligation on + * the part of Washington University, UC Irvine, Vanderbilt University, + * their employees, or students to assist in its use, correction, + * modification, or enhancement. A [20]number of companies around the + * world provide commercial support for DOC software, however. DOC + * software is Y2K-compliant, as long as the underlying OS platform is + * Y2K-compliant. Likewise, DOC software is compliant with the new US + * daylight savings rule passed by Congress as "The Energy Policy Act of + * 2005," which established new daylight savings times (DST) rules for + * the United States that expand DST as of March 2007. Since DOC software + * obtains time/date and calendaring information from operating systems + * users will not be affected by the new DST rules as long as they + * upgrade their operating systems accordingly. + * + * The names ACE(TM), TAO(TM), CIAO(TM), DAnCE(TM), CoSMIC(TM), + * Washington University, UC Irvine, and Vanderbilt University, may not + * be used to endorse or promote products or services derived from this + * source without express written permission from Washington University, + * UC Irvine, or Vanderbilt University. This license grants no permission + * to call products or services derived from this source ACE(TM), + * TAO(TM), CIAO(TM), DAnCE(TM), or CoSMIC(TM), nor does it grant + * permission for the name Washington University, UC Irvine, or + * Vanderbilt University to appear in their names. + * + * If you have any suggestions, additions, comments, or questions, please + * let [21]me know. + * + * [22]Douglas C. Schmidt + * + * References + * + * 1. http://www.cs.wustl.edu/~schmidt/ACE.html + * 2. http://www.cs.wustl.edu/~schmidt/TAO.html + * 3. http://www.dre.vanderbilt.edu/CIAO/ + * 4. http://www.dre.vanderbilt.edu/cosmic/ + * 5. http://www.dre.vanderbilt.edu/~schmidt/ + * 6. http://www.cs.wustl.edu/~schmidt/ACE-members.html + * 7. http://www.wustl.edu/ + * 8. http://www.uci.edu/ + * 9. http://www.vanderbilt.edu/ + * 10. mailto:doc_group@cs.wustl.edu + * 11. http://www.cs.wustl.edu/~schmidt/ACE-users.html + * 12. http://www.cs.wustl.edu/~schmidt/ACE.html + * 13. http://www.cs.wustl.edu/~schmidt/TAO.html + * 14. http://www.dre.vanderbilt.edu/CIAO/ + * 15. http://www.dre.vanderbilt.edu/~schmidt/DOC_ROOT/DAnCE/ + * 16. http://www.dre.vanderbilt.edu/cosmic/ + * 17. http://www.dre.vanderbilt.edu/ + * 18. http://www.isis.vanderbilt.edu/ + * 19. http://www.cs.wustl.edu/~schmidt/doc-center.html + * 20. http://www.cs.wustl.edu/~schmidt/commercial-support.html + * 21. mailto:d.schmidt@vanderbilt.edu + * 22. http://www.dre.vanderbilt.edu/~schmidt/ + * 23. http://www.cs.wustl.edu/ACE.html + */ + +void +InitializeXPConditionVariable(userland_cond_t *cv) +{ + cv->waiters_count = 0; + InitializeCriticalSection(&(cv->waiters_count_lock)); + cv->events_[C_SIGNAL] = CreateEvent (NULL, FALSE, FALSE, NULL); + cv->events_[C_BROADCAST] = CreateEvent (NULL, TRUE, FALSE, NULL); +} + +void +DeleteXPConditionVariable(userland_cond_t *cv) +{ + CloseHandle(cv->events_[C_BROADCAST]); + CloseHandle(cv->events_[C_SIGNAL]); + DeleteCriticalSection(&(cv->waiters_count_lock)); +} + +int +SleepXPConditionVariable(userland_cond_t *cv, userland_mutex_t *mtx) +{ + int result, last_waiter; + + EnterCriticalSection(&cv->waiters_count_lock); + cv->waiters_count++; + LeaveCriticalSection(&cv->waiters_count_lock); + LeaveCriticalSection (mtx); + result = WaitForMultipleObjects(2, cv->events_, FALSE, INFINITE); + if (result==-1) { + result = GetLastError(); + } + EnterCriticalSection(&cv->waiters_count_lock); + cv->waiters_count--; + last_waiter = result == (C_SIGNAL + C_BROADCAST && (cv->waiters_count == 0)); + LeaveCriticalSection(&cv->waiters_count_lock); + if (last_waiter) + ResetEvent(cv->events_[C_BROADCAST]); + EnterCriticalSection (mtx); + return result; +} + +void +WakeAllXPConditionVariable(userland_cond_t *cv) +{ + int have_waiters; + EnterCriticalSection(&cv->waiters_count_lock); + have_waiters = cv->waiters_count > 0; + LeaveCriticalSection(&cv->waiters_count_lock); + if (have_waiters) + SetEvent (cv->events_[C_BROADCAST]); +} +#endif +#endif |