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2016-04-07slirp: handle deferred ECONNREFUSED on non-blocking TCP socketsSteven Luo
slirp currently only handles ECONNREFUSED in the case where connect() returns immediately with that error; since we use non-blocking sockets, most of the time we won't receive the error until we later try to read from the socket. Ensure that we deliver the appropriate RST to the guest in this case. Signed-off-by: Steven Luo <steven+qemu@steven676.net> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2016-03-15slirp: Handle IPv6 in TCP functionsGuillaume Subiron
This patch adds IPv6 case in TCP functions refactored by the last patches. This also adds IPv6 pseudo-header in tcpiphdr structure. Finally, tcp_input() is called by ip6_input(). Signed-off-by: Guillaume Subiron <maethor@subiron.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com>
2016-03-15slirp: Reindent after refactoringGuillaume Subiron
No code change. Signed-off-by: Guillaume Subiron <maethor@subiron.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com>
2016-03-15slirp: Generalizing and neutralizing various TCP functions before adding ↵Guillaume Subiron
IPv6 stuff Basically, this patch adds some switch in various TCP functions to prepare them for the IPv6 case. To have something to "switch" in tcp_input() and tcp_respond(), a new argument is used to give them the sa_family of the addresses they are working on. This patch does not include the entailed reindentation, to make proofread easier. Reindentation is adressed in the following no-op patch. Signed-off-by: Guillaume Subiron <maethor@subiron.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com>
2016-03-15slirp: Factorizing tcpiphdr structure with an unionGuillaume Subiron
This patch factorizes the tcpiphdr structure to put the IPv4 fields in an union, for addition of version 6 in further patch. Using some macros, retrocompatibility of the existing code is assured. This patch also fixes the SLIRP_MSIZE and margin computation in various functions, and makes them compatible with the new tcpiphdr structure, whose size will be bigger than sizeof(struct tcphdr) + sizeof(struct ip) Signed-off-by: Guillaume Subiron <maethor@subiron.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com>
2016-03-15slirp: Fix ICMP error sendingYann Bordenave
Disambiguation : icmp_error is renamed into icmp_send_error, since it doesn't manage errors, but only sends ICMP Error messages. Signed-off-by: Yann Bordenave <meow@meowstars.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com>
2016-03-10osdep: remove use of socket_error() from all codeDaniel P. Berrange
Now that QEMU wraps the Win32 sockets methods to automatically set errno upon failure, there is no reason for callers to use the socket_error() method. They can rely on accessing errno even on Win32. Remove all use of socket_error() from general code, leaving it as a static method in oslib-win32.c only. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-02-04slirp: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1454089805-5470-10-git-send-email-peter.maydell@linaro.org
2016-02-04slirp: Adding family argument to tcp_fconnect()Guillaume Subiron
This patch simply adds a unsigned short family argument to remove the hardcoded "AF_INET" in the call of qemu_socket(). This prepares for IPv6 support. Signed-off-by: Guillaume Subiron <maethor@subiron.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-02-04slirp: Add sockaddr_equal, make solookup family-agnosticGuillaume Subiron
This patch makes solookup() compatible with varying address families, by using a new sockaddr_equal() function that compares two sockaddr_storage. This prepares for IPv6 support. Signed-off-by: Guillaume Subiron <maethor@subiron.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-02-04slirp: Factorizing and cleaning solookup()Guillaume Subiron
solookup() was only compatible with TCP. Having the socket list in argument, it is now compatible with UDP too. Some optimization code is factorized inside the function (the function look at the last returned result before browsing the complete socket list). This prepares for IPv6 support. Signed-off-by: Guillaume Subiron <maethor@subiron.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-02-04slirp: Make Socket structure IPv6 compatibleGuillaume Subiron
This patch replaces foreign and local address/port couples in Socket structure by 2 sockaddr_storage which can be casted in sockaddr_in. Direct access to address and port is still possible thanks to some \#define, so retrocompatibility of the existing code is assured. The ss_family field of sockaddr_storage is declared after each socket creation. The whole structure is also saved/restored when a Qemu session is saved/restored. This prepares for IPv6 support. Signed-off-by: Guillaume Subiron <maethor@subiron.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-11-12slirp: Fix type casts and format strings in debug codeStefan Weil
Casting pointers to long won't work on 64 bit Windows. It is not needed with the right format strings. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-09-24slirp: Fix non blocking connect for w32Stefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2013-06-19make user networking hostfwd work with restrict=yGertjan Halkes
This patch allows the hostfwd option to override the restrict=y setting in the user network stack, as explicitly stated in the documentation on the restrict option: restrict=on|off If this option is enabled, the guest will be isolated, i.e. it will not be able to contact the host and no guest IP packets will be routed over the host to the outside. This option does not affect any explicitly set forwarding rules. Qemu bug tracker: https://bugs.launchpad.net/qemu/+bug/829455 Signed-off-by: Gertjan Halkes <qemu@ghalkes.nl> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2012-10-05cleanup useless return sentenceAmos Kong
This patch cleans up return sentences in the end of void functions. Reported-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Amos Kong <akong@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
2011-09-28slirp: Fix use after release on tcp_inputJan Kiszka
ti points into the m buffer. But the latter may already be released right after the dodata: label. Move the test before the potential release. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2011-09-20Merge remote-tracking branch 'kiszka/queues/slirp' into stagingAnthony Liguori
2011-09-16Remove blanks before \n in output stringsStefan Weil
Those blanks violate the coding conventions, see scripts/checkpatch.pl. Blanks missing after colons in the changed lines were added. This patch does not try to fix tabs, long lines and other problems in the changed lines, therefore checkpatch.pl reports many violations. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-16slirp: Fill TCP/IP header template after SYN receptionJan Kiszka
This ensures we can cleanly signal the drop in case the connection timer fires. So far we sent those frames to nowhere (target IP 0.0.0.0). Found by the new assertion on invalid IPs in arp_table_search. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2011-07-23slirp: Replace m_freem with m_freeJan Kiszka
Remove this pointless wrapping. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-25slirp: Replace u_int8_t, u_int16_t, u_int32_t, u_int64_t by standard int typesStefan Weil
There is no need to have a second set of integral types. Replace them by the standard types from stdint.h. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-07slirp: remove dead assignments, spotted by clangBlue Swirl
Value stored is never read. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-06-29slirp: Factor out internal state structureJan Kiszka
The essence of this patch is to stuff (almost) all global variables of the slirp stack into the structure Slirp. In this step, we still keep the structure as global variable, directly accessible by the whole stack. Changes to the external interface of slirp will be applied in the following patches. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29slirp: Drop statistic codeJan Kiszka
As agreed on the mailing list, there is no interest in keeping the usually disabled slirp statistics in the tree. So this patch removes them. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29slirp: Drop dead codeJan Kiszka
After all its years inside the qemu tree, there is no point in keeping the dead code paths of slirp. This patch is a first round of removing usually commented out code parts. More cleanups need to follow (and maybe finally a proper reindention). Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29slirp: Prepare for persistent socket state flagsJan Kiszka
This prepares for adding flags to socket.so_state that must not be removed during the lifetime of a socket. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29slirp: Rework internal configurationJan Kiszka
The user mode IP stack is currently only minimally configurable /wrt to its virtual IP addresses. This is unfortunate if some guest has a fixed idea of which IP addresses to use. Therefore this patch prepares the stack for fully configurable IP addresses and masks. The user interface and default addresses remain untouched in this step, they will be enhanced in the following patch. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-03-07Sparse fixes: NULL use, header order, ANSI prototypes, staticblueswir1
Fix Sparse warnings: * use NULL instead of plain 0 * rearrange header include order to avoid redefining types accidentally * ANSIfy SLIRP * avoid "restrict" keyword * add static git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6736 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-26Remove the advertising clause from the slirp licensealiguori
According to the FSF, the 4-clause BSD license, which slirp is covered under, is not compatible with the GPL or LGPL[1]. [1] http://www.fsf.org/licensing/licenses/index_html#GPLIncompatibleLicenses There are three declared copyright holders in slirp that use the 4-clause BSD license, the Regents of UC Berkley, Danny Gasparovski, and Kelly Price. Below are the appropriate permissions to remove the advertise clause from slirp from each party. Special thanks go to Richard Fontana from Red Hat for contacting all of the necessary authors to resolve this issue! Regents of UC Berkley: From ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change July 22, 1999 To All Licensees, Distributors of Any Version of BSD: As you know, certain of the Berkeley Software Distribution ("BSD") source code files require that further distributions of products containing all or portions of the software, acknowledge within their advertising materials that such products contain software developed by UC Berkeley and its contributors. Specifically, the provision reads: " * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors." Effective immediately, licensees and distributors are no longer required to include the acknowledgement within advertising materials. Accordingly, the foregoing paragraph of those BSD Unix files containing it is hereby deleted in its entirety. William Hoskins Director, Office of Technology Licensing University of California, Berkeley Danny Gasparovski: Subject: RE: Slirp license Date: Thu, 8 Jan 2009 10:51:00 +1100 From: "Gasparovski, Daniel" <Daniel.Gasparovski@ato.gov.au> To: "Richard Fontana" <rfontana@redhat.com> Hi Richard, I have no objection to having Slirp code in QEMU be licensed under the 3-clause BSD license. Thanks for taking the effort to consult me about this. Dan ... Kelly Price: Date: Thu, 8 Jan 2009 19:38:56 -0500 From: "Kelly Price" <strredwolf@gmail.com> To: "Richard Fontana" <rfontana@redhat.com> Subject: Re: Slirp license Thanks for contacting me, Richard. I'm glad you were able to find Dan, as I've been "keeping the light on" for Slirp. I have no use for it now, and I have little time for it (now holding onto Keenspot's Comic Genesis and having a regular US state government position). If Dan would like to return to the project, I'd love to give it back to him. As for copyright, I don't own all of it. Dan does, so I will defer to him. Any of my patches I will gladly license to the 3-part BSD license. My interest in re-licensing was because we didn't have ready info to contact Dan. If Dan would like to port Slirp back out of QEMU, a lot of us 64-bit users would be grateful. Feel free to share this email address with Dan. I will be glad to effect a transfer of the project to him and Mr. Bellard of the QEMU project. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6451 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-13Fix 64 bit issue in slirpblueswir1
Signed-off-by: Gleb Natapov <gleb@redhat.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6288 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-08Add slirp_restrict option (Gleb Natapov)aliguori
Add "slirp firewall" to permit connection only to vmchannel addresses. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6241 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-26 Use const and static as needed, disable unused codeblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3452 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-26Make Slirp statistics gathering and output conditional to LOG_ENABLEDblueswir1
Add 'info slirp' command to monitor to display statistics Disable Slirp debugging code by default git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3451 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-17find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in ↵ths
the regex. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-16find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
2006-05-01do not delay TCP acks (Ed Swierk)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1882 c046a42c-6fe2-441c-8c8c-71466251a162
2004-10-07windows fixes (Gregory Alexander)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1102 c046a42c-6fe2-441c-8c8c-71466251a162
2004-09-05allow inetd like program execbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1060 c046a42c-6fe2-441c-8c8c-71466251a162
2004-07-12win32 compilebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1016 c046a42c-6fe2-441c-8c8c-71466251a162
2004-04-22initial user mode network supportbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@733 c046a42c-6fe2-441c-8c8c-71466251a162
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