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2012-08-06slirp: fix build on mingw32Anthony Liguori
in_addr_t isn't available on mingw32. Just use an unsigned long instead. I considered typedef'ing in_addr_t on mingw32 but this would potentially be brittle if mingw32 did introduce the type. Cc: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-03slirp: Handle whole 127.0.0.0/8 network as local addresses.Anders Waldenborg
Changes so translation of remote address to the host's ip address in the virtual network happens for all addresses in the 127.0.0.0/8 network, not just 127.0.0.1. This fixes so that hostfwd bound to addresses such as 127.0.0.2 works. Signed-off-by: Anders Waldenborg <anders@0x63.nu> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2011-08-03Delayed IP packetsFabien Chouteau
In the current implementation, if Slirp tries to send an IP packet to a client with an unknown hardware address, the packet is simply dropped and an ARP request is sent (if_encap in slirp/slirp.c). With this patch, Slirp will send the ARP request, re-queue the packet and try to send it later. The packet is dropped after one second if the ARP reply is not received. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.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>
2009-08-27slirp: Read host DNS config on demandEd Swierk
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>
2009-08-27slirp: Remove our_addr codeEd Swierk
Three problems with our_addr: - It's determined only once when qemu starts, but the address can change (just like the DNS configuration can). - It's supposed to be the IP address of a host network interface, but there's no guarantee that gethostbyname(gethostname()) actually does that: the host might be a laptop that has only a loopback interface up, or the hostname might be localhost.localdomain, etc. - It's useless at best: get_dns_addr() calls it, there's no reason to send DNS requests to a different IP address if you're running a DNS server on the host and resolv.conf points to 127.0.0.1. These problems are easily solved by removing the code. Signed-off-by: Ed Swierk <eswierk@aristanetworks.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29slirp: Allocate/free stack instance dynamicallyJan Kiszka
Allocate the internal slirp state dynamically and provide and call slirp_cleanup to properly release it after use. This patch finally unbreaks slirp release and re-instantiation via host_net_* monitor commands. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.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: Clean up updtimeJan Kiszka
Drop redundant typecasts in both variants and remove the pointless round-up in the UNIX version. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29slirp: Rework external configuration interfaceJan Kiszka
With the internal IP configuration made more flexible, we can now enhance the user interface. This patch adds a number of new options to "-net user": net (address and mask), host, dhcpstart, dns and smbserver. It also renames "redir" to "hostfwd" and "channel" to "guestfwd" in order to (hopefully) clarify their meanings. The format of guestfwd is extended so that the user can define not only the port but also the virtual server's IP address the forwarding starts from. 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>
2009-06-29slirp: Move smb, redir, tftp and bootp parameters and -net channelJan Kiszka
So far a couple of slirp-related parameters were expressed via stand-alone command line options. This it inconsistent and unintuitive. Moreover, it prevents both dynamically reconfigured (host_net_add/ delete) and multi-instance slirp. This patch refactors the configuration by turning -smb, -redir, -tftp and -bootp as well as -net channel into options of "-net user". The old stand-alone command line options are still processed, but no longer advertised. This allows smooth migration of management applications to to the new syntax and also the extension of that syntax later in this series. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-01-12Fix some SLIRP warningsblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6272 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
2009-01-08Redirect slirp traffic to/from qemu character device (Gleb Natapov)aliguori
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
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
2007-09-16find -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
2006-05-03separate alias_addr (10.0.2.2) from our_addr (Ed Swierk)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1895 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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