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* slirp: Read host DNS config on demandEd Swierk2009-08-271-1/+2
| | | | | | | | | | | | | | | | | Currently the qemu user-mode networking stack reads the host DNS configuration (/etc/resolv.conf or the Windows equivalent) only once when qemu starts. This causes name lookups in the guest to fail if the host is moved to a different network from which the original DNS servers are unreachable, a common occurrence when the host is a laptop. This patch changes the slirp code to read the host DNS configuration on demand, caching the results for at most 1 second to avoid unnecessary overhead if name lookups occur in rapid succession. On non-Windows hosts, /etc/resolv.conf is re-read only if the file has been replaced or if its size or mtime has changed. Signed-off-by: Ed Swierk <eswierk@aristanetworks.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* slirp: Factor out internal state structureJan Kiszka2009-06-291-28/+46
| | | | | | | | | | | 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>
* slirp: Drop statistic codeJan Kiszka2009-06-291-6/+1
| | | | | | | | | 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>
* slirp: Drop dead codeJan Kiszka2009-06-291-362/+4
| | | | | | | | | | 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>
* slirp: Mark sockets of incoming TCP connectionsJan Kiszka2009-06-291-0/+1
| | | | | | | Required for pretty-printing. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* slirp: Bind support for host forwarding rulesJan Kiszka2009-06-291-7/+8
| | | | | | | | | Extend the hostfwd rule format so that the user can specify on which host interface qemu should listen for incoming connections. If omitted, binding will takes place against all interfaces. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* slirp: Rework internal configurationJan Kiszka2009-06-291-11/+6
| | | | | | | | | | | | | 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>
* slirp: Refactor tcp_ctlJan Kiszka2009-06-291-79/+30
| | | | | Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* Delete some unused macros detected with -Wp,-Wunused-macros useblueswir12009-03-161-1/+0
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6856 c046a42c-6fe2-441c-8c8c-71466251a162
* Sparse fixes: NULL use, header order, ANSI prototypes, staticblueswir12009-03-071-33/+18
| | | | | | | | | | | | | 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
* Remove the advertising clause from the slirp licensealiguori2009-01-261-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Fix 64 bit issue in slirpblueswir12009-01-131-8/+8
| | | | | | | Signed-off-by: Gleb Natapov <gleb@redhat.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6288 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix some SLIRP warningsblueswir12009-01-121-1/+1
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6272 c046a42c-6fe2-441c-8c8c-71466251a162
* Redirect slirp traffic to/from qemu character device (Gleb Natapov)aliguori2009-01-081-0/+5
| | | | | | | | | 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@6240 c046a42c-6fe2-441c-8c8c-71466251a162
* Suppress gcc 4.x -Wpointer-sign (included in -Wall) warningsblueswir12008-09-201-2/+2
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5275 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix OpenBSD linker warningsblueswir12008-08-211-18/+26
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5044 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix slirp compilation failure when using a newer gccblueswir12007-11-011-1/+4
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3505 c046a42c-6fe2-441c-8c8c-71466251a162
* Add const etc. to places forgotten from the previous commitblueswir12007-10-261-0/+2
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3453 c046a42c-6fe2-441c-8c8c-71466251a162
* Use const and static as needed, disable unused codeblueswir12007-10-261-26/+13
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3452 c046a42c-6fe2-441c-8c8c-71466251a162
* Make Slirp statistics gathering and output conditional to LOG_ENABLEDblueswir12007-10-261-5/+5
| | | | | | | | 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
* find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in ↵ths2007-09-171-83/+83
| | | | | | the regex. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
* find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths2007-09-161-147/+147
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
* Enable TCP_NODELAY, by Daniel Jacobowitz.ths2006-12-211-0/+2
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2257 c046a42c-6fe2-441c-8c8c-71466251a162
* separate alias_addr (10.0.2.2) from our_addr (Ed Swierk)bellard2006-05-031-2/+2
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1895 c046a42c-6fe2-441c-8c8c-71466251a162
* removed warningbellard2004-09-181-1/+1
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1071 c046a42c-6fe2-441c-8c8c-71466251a162
* allow inetd like program execbellard2004-09-051-5/+4
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1060 c046a42c-6fe2-441c-8c8c-71466251a162
* win32 compilebellard2004-07-121-3/+3
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1016 c046a42c-6fe2-441c-8c8c-71466251a162
* avoid errno variable namebellard2004-04-261-1/+1
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@766 c046a42c-6fe2-441c-8c8c-71466251a162
* initial user mode network supportbellard2004-04-221-0/+1325
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@733 c046a42c-6fe2-441c-8c8c-71466251a162
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