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path: root/slirp/socket.c
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* Don't leak file descriptorsKevin Wolf2009-12-031-1/+1
| | | | | | | | We're leaking file descriptors to child processes. Set FD_CLOEXEC on file descriptors that don't need to be passed to children to stop this misbehaviour. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* 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 Kiszka2009-06-291-14/+23
| | | | | | | | | | | 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: Cleanup and basic reanimation of debug codeJan Kiszka2009-06-291-1/+2
| | | | | Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* slirp: Drop dead codeJan Kiszka2009-06-291-53/+0
| | | | | | | | | | 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: Prepare for persistent socket state flagsJan Kiszka2009-06-291-8/+14
| | | | | | | | 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>
* slirp: Bind support for host forwarding rulesJan Kiszka2009-06-291-5/+5
| | | | | | | | | 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 Kiszka2009-06-291-8/+5
| | | | | | | | | | | | | 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>
* Fix mingw32 build warningsBlue Swirl2009-06-131-1/+6
| | | | | | | | Work around buffer and ioctlsocket argument type signedness problems Suppress a prototype which is unused on mingw32 Expand a macro to avoid warnings from some GCC versions Signed-off-by: Blue Swirl <blauwirbel@gmail.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, staticblueswir12009-03-071-36/+16
| | | | | | | | | | | | | 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
* Redirect slirp traffic to/from qemu character device (Gleb Natapov)aliguori2009-01-081-21/+80
| | | | | | | | | 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
* Remove unnecessary trailing newlinesblueswir12008-12-131-1/+0
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6000 c046a42c-6fe2-441c-8c8c-71466251a162
* Make struct iovec universally availablealiguori2008-12-051-0/+1
| | | | | | | | | | | Vectored IO APIs will require some sort of vector argument. It makes sense to use struct iovec and just define it globally for Windows. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5889 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix warning about variables used uninitializedblueswir12008-10-011-0/+4
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5378 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix some warnings that would be generated by gcc -Wredundant-declsblueswir12008-08-301-1/+0
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5115 c046a42c-6fe2-441c-8c8c-71466251a162
* Special-case CTL_ALIAS instead of CTL_DNS in udp loopback test.balrog2008-05-101-2/+3
| | | | | | | | At the same time remove a bogus test (tested by Jason Wessel). Quiet some gcc4 warnings from slirp compilation. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4402 c046a42c-6fe2-441c-8c8c-71466251a162
* Use const and static as needed, disable unused codeblueswir12007-10-261-11/+15
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3452 c046a42c-6fe2-441c-8c8c-71466251a162
* find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in ↵ths2007-09-171-11/+11
| | | | | | the regex. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
* find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths2007-09-161-72/+72
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
* separate alias_addr (10.0.2.2) from our_addr (Ed Swierk)bellard2006-05-031-1/+1
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1895 c046a42c-6fe2-441c-8c8c-71466251a162
* Solaris port (Ben Taylor)bellard2006-04-251-0/+3
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1855 c046a42c-6fe2-441c-8c8c-71466251a162
* Set SO_REUSEADDR before calling bind().pbrook2006-03-111-1/+1
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1783 c046a42c-6fe2-441c-8c8c-71466251a162
* socket send fixbellard2004-11-241-2/+6
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1158 c046a42c-6fe2-441c-8c8c-71466251a162
* fixed invalid received lengthbellard2004-11-211-2/+6
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1155 c046a42c-6fe2-441c-8c8c-71466251a162
* windows fixes (Gregory Alexander)bellard2004-10-071-8/+18
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1102 c046a42c-6fe2-441c-8c8c-71466251a162
* win32 compilebellard2004-07-121-1/+1
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1016 c046a42c-6fe2-441c-8c8c-71466251a162
* initial user mode network supportbellard2004-04-221-0/+696
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@733 c046a42c-6fe2-441c-8c8c-71466251a162